Modular structures for enclosing a vehicle load or passenger receiving space

Claim 2

A conversion assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers wherein said truck has upwardly opening hollow stanchions extending upwardly from said bed structure, said conversion assembly comprising a series of enclosure-defining knockdown panels for enclosing said bed structure, a sub-assembly of said series of panels defining side and end wall portions of the enclosure defined by said series of panels, and said sub-assembly of panels being detachably mounted directly on said truck without the use of tool-manipulated fasteners of any kind, each of the panels forming said side wall portions comprising an inner frame, an outer frame fixed to said inner frame, a pair of legs rigid with said inner frame and being adapted to be removably slidably received in predetermined pair of said stanchions, and means fixed to said outer frame for enclosing the frame space bordered by said outer frame, said outer frame and said last mentioned means being disposed exteriorly of said pair of stanchions when said legs are received in said pair of stanchions, and said means enclosing said frame space comprising inner and outer screens fixed to said outer frame in spaced apart, essential parallel relation, with the outer one of said screens being sufficiently resilient to have a spring effect for repelling thrown objects.

Claim 3

The conversion assembly defined in claim 1 wherein said inner screen is formed from a relatively stiff, expanded metal mesh, and wherein said outer screen is formed from a material that obscures a view of the interior of the enclosure from a position outside the enclosure.

Claim 4

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, said assembly comprising means adapted to be detachably mounted on said truck and defining an enclosure for enclosing said bed structure and having opposed spaced apart side walls, front and rear end walls, and a top wall covering the space confined by said side and end walls, door means forming a part of said enclosure-defining means and being supported for displacement between closed and opened positions to provide an opening for entering and leaving said enclosure, said door means defining at least a portion of said rear end wall, said enclosure-defining means restricting ingress and egress relative to said enclosure except through said opening, said enclosure defining means further including a series of separately formed knockdown panels that define said side walls, said top wall and said front end wall, and means interlocking said panels without the use of tool-manipulated fasteners of any kind and cooperating with said door means to prevent said panels from being displaced or removed from their enclosure-defining positions to positions allowing ingress or egress relative to said enclosure except upon predetermined displacement of said door means from its closed position.

Claim 5

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, said assembly comprising means adapted to be detachably mounted on said truck and defining an enclosure for enclosing said bed structure and having opposed spaced apart side walls, front and rear end walls, and a top wall covering the space confined by said side and end walls, door means forming a part of said enclosure-defining means and being supported for displacement between closed and opened positions to provide an opening for entering and leaving said enclosure, said door means defining at least a portion of said rear end wall, said enclosure-defining means restricting ingress and egress relative to said enclosure except through said opening, said enclosure defining means further including a series of separately formed knockdown panels that define said side walls, said top wall and said front end wall, and means interlocking said panels without the use of tool-manipulated fasteners of any kind and cooperating with said door means to prevent said panels from being displaced or removed from their enclosure-defining positions to positions allowing ingress or egress relative to said enclosure except upon predetermined displacement of said door means from its closed position.

Claim 6

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, said assembly comprising a first sub-assembly having a series of separately formed knockdown panels detachably supported on said bed structure, a second sub-assembly having at least one panel-like door and cooperating with said first sub-assembly to define an enclosure having top, side and end walls for enclosing said bed structure, said second sub-assembly being displaceably supported by said first sub-assembly to provide an opening for entering and leaving said enclosure, and means interlocking said panels and cooperating with said second sub-assembly to prevent disassembly of said panels when said second sub-assembly is positioned to close said opening.

Claim 7

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, said assembly comprising a first sub-assembly having a series of separately formed knockdown panels detachably supported on said bed structure, a second sub-assembly having at least one panel-like door and cooperating with said first sub-assembly to define an enclosure having top, side and end walls for enclosing said bed structure, said second sub-assembly being displaceably supported by said first sub-assembly to provide an opening for entering and leaving said enclosure, and means interlocking said panels and cooperating with said second sub-assembly to prevent disassembly of said panels when said second sub-assembly is positioned to close said opening.

Claim 8

A conversion assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for confining detained persons or protecting passengers, said conversion assembly comprising an array of separately formed knockdown panels detachably supported on said bed structure and defining an enclosure for enclosing said bed structure to confine or protect persons occupying said bed structure, said enclosure being formed with opposed, spaced apart end walls, first and second opposed spaced apart side walls extending between said end walls, and a top wall covering the space confined by said end and side walls, said array having first, second, and third sub-assemblies of said panels, said first sub-assembly having at least one of said panels and defining one of said end walls, said second sub-assembly having at least two of said panels respectively defining a portion of said first side wall and a portion of said second side wall, said third sub-assembly having at least one panel defining a portion of said top wall, and means interlocking said first, second, and third sub-assemblies to enable the panels of said first, second, and third sub-assemblies to be assembled and disassembled only in a single predetermined order.

Claim 9

A conversion assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for confining detained persons or protecting passengers, said conversion assembly comprising an array of separately formed knockdown panels detachably supported on said bed structure and defining an enclosure for enclosing said bed structure to confine or protect persons occupying said bed structure, said enclosure being formed with opposed, spaced apart end walls, first and second opposed spaced apart side walls extending between said end walls, and a top wall covering the space confined by said end and side walls, said array having first, second, and third sub-assemblies of said panels, said first sub-assembly having at least one of said panels and defining one of said end walls, said second sub-assembly having at least two of said panels respectively defining a portion of said first side wall and a portion of said second side wall, said third sub-assembly having at least one panel defining a portion of said top wall, and means interlocking said first, second, and third sub-assemblies to enable the panels of said first, second, and third sub-assemblies to be assembled and disassembled only in a single predetermined order.

Claim 10

The conversion assembly defined in claim 5 wherein the order of disassembly of said sub-assemblies provided by said interlocking means is as follows: said third sub-assembly, said second sub-assembly, and first sub-assembly.

Claim 11

The conversion assembly defined in claim 6 wherein the panels of said first, second, and third sub-assemblies cooperate to define two corners of said enclosure.

Claim 12

The conversion assembly defined in claim 7 wherein said two panels defining said portions of said first and second side walls are disposed in spaced apart opposed relation, wherein said at least one panel defining said portion of said top wall spans the space between said two panels that define said portions of said first and second side walls, and wherein said at least one panel defining said one of said end walls is disposed adjacent to correspondingly facing edges to said two panels that define said portions of said first and second side walls and of said at least one panel that defines said portion of said top wall.

Claim 13

The conversion assembly defined in claim 8 wherein said interlocking means comprises a member fixed to said at least one panel defining said one of said end walls, said member having a leg portion overlapping the adjacent edge of said at least one top wall portion defining panel and being separably abuttable therewith to prevent said at least one top wall portion defining panel from being pushed or pulled upwardly and away from said at least one panel defining said one of said end walls at least in the region of said leg portion.

Claim 14

The conversion assembly defined in claim 8 wherein said two panels defining said two portions of said first and second side walls each have an exterior protective panel portion and a further portion disposed inwardly of and fixed to said exterior portion, said at least one panel defining said portion of said top wall being seated on said further portions of said two side wall portions defining panels between the exterior portions of said two side wall portion defining panels.

Claim 15

The conversion assembly defined in claim 8 wherein said interlocking means comprise tabs on opposite sides of said at least one top wall portion defining panel, said tabs being separably interlockingly received in spaces between said exterior and further portions of said two side wall portion defining panels to prevent the upper edge of each of said two side wall portion defining panels from being pushed or pulled away from said at least one top wall portion defining panel.

Claim 16

A conversion assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for confining detained persons or protecting passengers, said conversion assembly comprising an array of separately formed, knockdown panels detachably supported on said bed structure to define an enclosure of inverted box-like configuration for enclosing said bed structure, there being three of said panels respectively forming end wall, side wall, and top wall portions of said enclosure and being disposed adjacent to each other to define two corners of said enclosure, and means fixed on only one of said three panels for separably interlocking said three panels without the use of fasteners of any kind.

Claim 17

A conversion assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for confining detained persons or protecting passengers, said conversion assembly comprising an array of separately formed, knockdown panels detachably supported on said bed structure to define an enclosure of inverted box-like configuration for enclosing said bed structure, there being three of said panels respectively forming end wall, side wall, and top wall portions of said enclosure and being disposed adjacent to each other to define two corners of said enclosure, and means fixed on only one of said three panels for separably interlocking said three panels without the use of fasteners of any kind.

Claim 18

A conversion assembly for converting a truck having an open bed structure into a carrier for confining detained persons or protecting passengers, said conversion assembly comprising an array of separately formed knockdown panels detachably supported on said bed structure to define an enclosure for enclosing said bed structure to confine or protect persons occupying said bed structure, said enclosure having opposed spaced apart end walls, opposed spaced apart side walls extending between said end walls, and a top wall covering the space confined by said end and side walls, there being at least one of said panels defining each of said side walls and at least another one of said panels defining said top wall, the side wall-defining ones of said panels each having an exterior portion and an inner portion, said inner portion being formed with a top wall panel seating surface disposed at a level that is below the upper edge of said exterior portion, said top wall-defining panel being seated on the inner portion seating surfaces of said side wall-defining panels and being disposed between and confined against sideward movement by the regions of said exterior portions which extend above said seating surfaces.

Claim 19

A conversion assembly for converting a truck having an open bed structure into a carrier for confining detained persons or protecting passengers, said conversion assembly comprising an array of separately formed knockdown panels detachably supported on said bed structure to define an enclosure for enclosing said bed structure to confine or protect persons occupying said bed structure, said enclosure having opposed spaced apart end walls, opposed spaced apart side walls extending between said end walls, and a top wall covering the space confined by said end and side walls, there being at least one of said panels defining each of said side walls and at least another one of said panels defining said top wall, the side wall-defining ones of said panels each having an exterior portion and an inner portion, said inner portion being formed with a top wall panel seating surface disposed at a level that is below the upper edge of said exterior portion, said top wall-defining panel being seated on the inner portion seating surfaces of said side wall-defining panels and being disposed between and confined against sideward movement by the regions of said exterior portions which extend above said seating surfaces.

Claim 20

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, said assembly comprising means adapted to be mounted on said truck for detaining or protecting persons on said bed structure and defining an enclosure for enclosing said bed structure and having opposed spaced apart side walls, front and rear end walls, and a top wall covering the space confined by said side and end walls, door means forming a part of said enclosure-defining means and being supported for displacement between closed and opened positions to provide an opening in one of said end walls for entering and leaving said enclosure, said enclosure-defining means further including a series of separately formed knockdown panels that define said top wall, said side walls and the other of said end walls, and means interlocking said panels and cooperating with said door means (a) to prevent said panels from being displaced or removed from their assembled, enclosure-defining positions to positions allowing personnel ingress or egress relative to said enclosure when said door means is in its closed position and (b) to enable disassembly of said panels upon predetermined displacement of said door means from said closed position.

Claim 21

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, said assembly comprising means adapted to be mounted on said truck for detaining or protecting persons on said bed structure and defining an enclosure for enclosing said bed structure and having opposed spaced apart side walls, front and rear end walls, and a top wall covering the space confined by said side and end walls, door means forming a part of said enclosure-defining means and being supported for displacement between closed and opened positions to provide an opening in one of said end walls for entering and leaving said enclosure, said enclosure-defining means further including a series of separately formed knockdown panels that define said top wall, said side walls and the other of said end walls, and means interlocking said panels and cooperating with said door means (a) to prevent said panels from being displaced or removed from their assembled, enclosure-defining positions to positions allowing personnel ingress or egress relative to said enclosure when said door means is in its closed position and (b) to enable disassembly of said panels upon predetermined displacement of said door means from said closed position.

Claim 22

The assembly defined in claim 14 wherein each of said panels is disposed adjacent to at least another one of said panels, and wherein said interlocking means comprises coacting formations respectively on adjacently disposed ones of said panels and being in separable seating surface engagement with each other, said panels being retained against displacement from their assembled enclosure-defining positions only by the separable seating surface engagement of said formations.

Claim 23

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, wherein said truck has upwardly opening hollow stanchions extending upwardly from said bed structure, said assembly comprising means adapted to be mounted on said truck and including panel means and door means, said door means cooperating with said panel means for defining an enclosure enclosing said bed structure and having opposed spaced apart end walls, opposed spaced apart side walls extending between said end walls, and a top wall covering the space confined by said side and end walls, said door means providing an opening in one of said end walls for entering and leaving said enclosure, said panel means comprising a plurality of knockdown panels forming portions of said side walls, and each of said knockdown panels comprising rigid structural means comprising a pair of legs that are adapted to be removably slidably received in a predetermined pair of said stanchions, a frame fixed to said structural means, and means fixed to said frame for enclosing the space bordered by said frame, said frame and said means fixed to said frame for enclosing said space being disposed exteriorly of said predetermined pair of stanchions in overlapping relation thereto when said legs are received in said pair of stanchions to block access to said pair of stanchions from the exterior of said enclosure.

Claim 24

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, wherein said truck has upwardly opening hollow stanchions extending upwardly from said bed structure, said assembly comprising means adapted to be mounted on said truck and including panel means and door means, said door means cooperating with said panel means for defining an enclosure enclosing said bed structure and having opposed spaced apart end walls, opposed spaced apart side walls extending between said end walls, and a top wall covering the space confined by said side and end walls, said door means providing an opening in one of said end walls for entering and leaving said enclosure, said panel means comprising a plurality of knockdown panels forming portions of said side walls, and each of said knockdown panels comprising rigid structural means comprising a pair of legs that are adapted to be removably slidably received in a predetermined pair of said stanchions, a frame fixed to said structural means, and means fixed to said frame for enclosing the space bordered by said frame, said frame and said means fixed to said frame for enclosing said space being disposed exteriorly of said predetermined pair of stanchions in overlapping relation thereto when said legs are received in said pair of stanchions to block access to said pair of stanchions from the exterior of said enclosure.

Claim 25

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, said assembly comprising means adapted to be detachably mounted on said truck and forming an enclosure for enclosing said bed structure and having opposed spaced apart side walls, front and rear wall end walls and a top wall covering the space confined by said side and end walls, door means forming a part of said enclosure-defining means to provide an opening at said rear end wall for entering and leaving said enclosure, said enclosure-defining means further including a series of knockdown panels defining said side walls, said top wall and said front end wall, said panels blocking ingress and egress relative to said enclosure except through said opening, and means detachably interlocking said panels to prevent each panel from being removed transversely of the enclosure-forming wall portion that it defines, said interlocking means having portions that are accessible from the exterior of said enclosure, and all of the portions of said interlocking means that are accessible from the exterior of said enclosure being permanently fixed to predetermined ones of said panels.

Claim 26

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, said assembly comprising means adapted to be detachably mounted on said truck and forming an enclosure for enclosing said bed structure and having opposed spaced apart side walls, front and rear wall end walls and a top wall covering the space confined by said side and end walls, door means forming a part of said enclosure-defining means to provide an opening at said rear end wall for entering and leaving said enclosure, said enclosure-defining means further including a series of knockdown panels defining said side walls, said top wall and said front end wall, said panels blocking ingress and egress relative to said enclosure except through said opening, and means detachably interlocking said panels to prevent each panel from being removed transversely of the enclosure-forming wall portion that it defines, said interlocking means having portions that are accessible from the exterior of said enclosure, and all of the portions of said interlocking means that are accessible from the exterior of said enclosure being permanently fixed to predetermined ones of said panels.

Claim 27

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, said assembly comprising means adapted to be detachably mounted on said truck and forming an enclosure for enclosing said bed structure and having opposed spaced apart side walls, front and rear wall end walls and a top wall covering the space confined by said side and end walls, door means forming a part of said enclosure-defining means to provide a security opening at said rear end wall for entering and leaving said enclosure, said enclosure-defining means further including a series of knockdown panels defining said side walls, said top wall and said front end wall, said panels blocking ingress and egress relative to said enclosure except through said opening, and means detachably interlocking said panels to prevent each panel from being removed transversely of the enclosure-forming wall portion that it defines, said interlocking means having portions that are accessible from the interior of said enclosure, and all of the portions of said interlocking means that are accessible from the interior of said enclosure being permanently fixed to predetermined ones of said panels.

Claim 28

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, said assembly comprising means adapted to be detachably mounted on said truck and forming an enclosure for enclosing said bed structure and having opposed spaced apart side walls, front and rear wall end walls and a top wall covering the space confined by said side and end walls, door means forming a part of said enclosure-defining means to provide a security opening at said rear end wall for entering and leaving said enclosure, said enclosure-defining means further including a series of knockdown panels defining said side walls, said top wall and said front end wall, said panels blocking ingress and egress relative to said enclosure except through said opening, and means detachably interlocking said panels to prevent each panel from being removed transversely of the enclosure-forming wall portion that it defines, said interlocking means having portions that are accessible from the interior of said enclosure, and all of the portions of said interlocking means that are accessible from the interior of said enclosure being permanently fixed to predetermined ones of said panels.

Claim 29

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, wherein said truck has upwardly opening hollow stanchions extending upwardly from said bed structure, said assembly comprising means adapted to be mounted on said truck and including panel means and door means, said door means cooperating with said panel means for defining a security enclosure enclosing said bed structure and having opposed spaced apart end walls, opposed spaced apart side walls, and a top wall covering the space confined by said side and end walls, said door means providing an opening in one of said end walls for entering and leaving said enclosure, said panel means cooperating with said door means to block ingress into and egress from said enclosure when said door means is held closed, said panel means comprising a first plurality of knockdown panels forming portions of said side walls, and each of said knockdown panels comprising rigid structural means having a pair of legs that are adapted to be removably slidably received in a predetermined pair of said stanchions, a frame fixed to said structural means and means fixed to said frame for blocking the space bordered by said frame to block ingress and egress through said space, said frame and said means fixed to said frame for blocking said space being disposed exteriorly of said predetermined pair of stanchions in overlapping relation thereto when said legs are received in said pair of stanchions to block access to said pair of stanchions from the exterior of said enclosure, said panel means including a second plurality of knockdown panels defining said top wall and the other of said end walls.

Claim 30

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, wherein said truck has upwardly opening hollow stanchions extending upwardly from said bed structure, said assembly comprising means adapted to be mounted on said truck and including panel means and door means, said door means cooperating with said panel means for defining a security enclosure enclosing said bed structure and having opposed spaced apart end walls, opposed spaced apart side walls, and a top wall covering the space confined by said side and end walls, said door means providing an opening in one of said end walls for entering and leaving said enclosure, said panel means cooperating with said door means to block ingress into and egress from said enclosure when said door means is held closed, said panel means comprising a first plurality of knockdown panels forming portions of said side walls, and each of said knockdown panels comprising rigid structural means having a pair of legs that are adapted to be removably slidably received in a predetermined pair of said stanchions, a frame fixed to said structural means and means fixed to said frame for blocking the space bordered by said frame to block ingress and egress through said space, said frame and said means fixed to said frame for blocking said space being disposed exteriorly of said predetermined pair of stanchions in overlapping relation thereto when said legs are received in said pair of stanchions to block access to said pair of stanchions from the exterior of said enclosure, said panel means including a second plurality of knockdown panels defining said top wall and the other of said end walls.

Claim 31

The assembly defined in claim 19, wherein said means for blocking the space bordered by said frame comprises a screen.

Claim 32

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, said assembly comprising means adapted to be mounted on said truck and including an array of separately formed, knockdown panels and door means, said door means cooperating with said panels for defining a security enclosure enclosing said bed structure and having opposed spaced apart end walls, opposed spaced apart side walls, and a top wall covering the space confined by said side and end walls, said door means providing an opening in one of said end walls for entering and leaving said enclosure, said panels cooperating with said door means to block ingress into and egress from said enclosure when said door means is held closed, there being at least one of said panels defining each of said side walls and at least another one of said panels defining said top wall, the side wall-defining ones of said panels each having (a) a frame, (b) means fixed to said frame for blocking the space bordered by said frame, and (c) structural means fixed to said frame, said structural means being disposed on the inner side of said frame and defining an upwardly facing top wall panel seating surface, said seating surface being disposed inwardly of said frame and at a level below the upper edge of said frame, said top wall-defining panel being seated on the seating surfaces defined by said structural means and being disposed between the regions of the frames of said side wall-defining panels which extend above said seating surfaces, said regions of said frames extending above said seating surfaces being disposed to confine sideward movement of said top wall-defining panel.

Claim 33

An assembly for converting a truck having an open load or passenger-carrying bed structure into a carrier for either confining detained persons or protecting passengers, said assembly comprising means adapted to be mounted on said truck and including an array of separately formed, knockdown panels and door means, said door means cooperating with said panels for defining a security enclosure enclosing said bed structure and having opposed spaced apart end walls, opposed spaced apart side walls, and a top wall covering the space confined by said side and end walls, said door means providing an opening in one of said end walls for entering and leaving said enclosure, said panels cooperating with said door means to block ingress into and egress from said enclosure when said door means is held closed, there being at least one of said panels defining each of said side walls and at least another one of said panels defining said top wall, the side wall-defining ones of said panels each having (a) a frame, (b) means fixed to said frame for blocking the space bordered by said frame, and (c) structural means fixed to said frame, said structural means being disposed on the inner side of said frame and defining an upwardly facing top wall panel seating surface, said seating surface being disposed inwardly of said frame and at a level below the upper edge of said frame, said top wall-defining panel being seated on the seating surfaces defined by said structural means and being disposed between the regions of the frames of said side wall-defining panels which extend above said seating surfaces, said regions of said frames extending above said seating surfaces being disposed to confine sideward movement of said top wall-defining panel.

Claim 34

The assembly defined in claim 21 wherein said truck has upwardly opening stanchions extending upwardly from said bed structure, and wherein each of said side wall-defining panels includes a pair of leg portions, said leg portions being rigid with said structural means and arranged to be removably slidably received in a pair of said stanchions upon assembly of said side wall-defining panel on said bed structure.

Claim 35

In combination with a truck having an open load or passenger-carrying bed structure and upwardly opening hollow stanchions extending upwardly from said bed structure, an assembly detachably mounted on said truck and including panel means and door means, said door means cooperating with said panel means for defining a security enclosure enclosing said bed structure and having opposed spaced apart end walls, opposed spaced side walls extending between said end walls, and a top wall covering the space confined by said side and end walls, said door means providing an opening in one of said end walls for entering and leaving said enclosure, said panel means cooperating with said door means to block ingress into and egress from said enclosure when said door means is held closed, said panel means comprising a plurality of knockdown panels forming portions of said side walls, and each of said knockdown panels comprising a frame, a pair of legs fixed to said frame and removably slidably received in a pre-selected pair of said stanchions, and means fixed to said frame for blocking the space bordered by said frame, said frame and said blocking means being disposed exteriorly of said pre-selected pair of stanchions in overlapping relation thereto when said legs are received in said pair of stanchions to block access to said pre-selected pair of stanchions from the exterior of said enclosure.

Claim 36

In combination with a truck having an open load or passenger-carrying bed structure and upwardly opening hollow stanchions extending upwardly from said bed structure, an assembly detachably mounted on said truck and including panel means and door means, said door means cooperating with said panel means for defining a security enclosure enclosing said bed structure and having opposed spaced apart end walls, opposed spaced side walls extending between said end walls, and a top wall covering the space confined by said side and end walls, said door means providing an opening in one of said end walls for entering and leaving said enclosure, said panel means cooperating with said door means to block ingress into and egress from said enclosure when said door means is held closed, said panel means comprising a plurality of knockdown panels forming portions of said side walls, and each of said knockdown panels comprising a frame, a pair of legs fixed to said frame and removably slidably received in a pre-selected pair of said stanchions, and means fixed to said frame for blocking the space bordered by said frame, said frame and said blocking means being disposed exteriorly of said pre-selected pair of stanchions in overlapping relation thereto when said legs are received in said pair of stanchions to block access to said pre-selected pair of stanchions from the exterior of said enclosure.

Claim 37

The combination defined in claim 23 wherein said blocking means comprises a screen.

Claim 38

The combination defined in claim 23 wherein said panel means includes a further plurality of knockdown panels that define said top wall and the other of said end walls.

Claim 39

The combination defined in claim 25, wherein two knockdown panels of said futher plurality of panels defines said other of said end walls, one of said two panels being mounted on and supported by the other of said two panels.

Claim 40

The combination defined in claim 25 wherein said assembly further comprises means for detachably interlocking the side-wall-forming knockdown panels and said further plurality of said panels.

Claim 41

In combination with a truck having an open load or passenger-carrying bed structure, an assembly detachably mounted on said truck for either confining detained persons or protecting passengers on said bed structure said assembly comprising an array of separately formed, knockdown panels and door means, said door means cooperating with said panels for defining a security enclosure enclosing said bed structure and having opposed spaced apart end walls, opposed spaced apart side walls, and a top wall covering the space confined by said side and end walls, said door means providing an opening in one of said end walls for entering and leaving said enclosure, said panels cooperating with said door means to block ingress into and egress from said enclosure when said door means is held closed, there being at least one of said panels defining each of said side walls and at least another one of said panels defining said top wall, the side wall-defining ones of said panels each having (a) a frame, (b) means fixed to same frame for blocking the space bordered by said frame, and (c) structural means fixed to said frame, said structural means being disposed on the inner side of said frame and defining an upwardly facing top wall panel seating surface, said seating surface being disposed inwardly of said frame and at a level below the upper edge of said frame, said top wall-defining panel being seated on the seating surfaces defined by said structural means and being disposed between the regions of the frames of said side wall-defining panels which extend above said seating surfaces, said regions of said frames extending above said seating surfaces being disposed to confine sideward movement of said top wall-defining panel.

Claim 42

In combination with a truck having an open load or passenger-carrying bed structure, an assembly detachably mounted on said truck for either confining detained persons or protecting passengers on said bed structure said assembly comprising an array of separately formed, knockdown panels and door means, said door means cooperating with said panels for defining a security enclosure enclosing said bed structure and having opposed spaced apart end walls, opposed spaced apart side walls, and a top wall covering the space confined by said side and end walls, said door means providing an opening in one of said end walls for entering and leaving said enclosure, said panels cooperating with said door means to block ingress into and egress from said enclosure when said door means is held closed, there being at least one of said panels defining each of said side walls and at least another one of said panels defining said top wall, the side wall-defining ones of said panels each having (a) a frame, (b) means fixed to same frame for blocking the space bordered by said frame, and (c) structural means fixed to said frame, said structural means being disposed on the inner side of said frame and defining an upwardly facing top wall panel seating surface, said seating surface being disposed inwardly of said frame and at a level below the upper edge of said frame, said top wall-defining panel being seated on the seating surfaces defined by said structural means and being disposed between the regions of the frames of said side wall-defining panels which extend above said seating surfaces, said regions of said frames extending above said seating surfaces being disposed to confine sideward movement of said top wall-defining panel.