Door locking structure

Claim 2

In combination, a support structure including at least one marginal edge portion, a lock assembly supported from said support structure, said lock assembly including an elongated locking bar guidingly mounted on said support structure for lengthwise reciprocation between an operative position with one end portion of said bar extended relative to said one marginal edge portion and a retracted position with said one end portion of said bar retracted relative to said one marginal edge portion, a laterally enlarged abutment carried by the other end portion of said bar for reciprocation therewith, a latch member guidingly supported from said support member for shifting toward and away from said bar laterally of the latter, first means yieldingly biasing said bar toward said retracted position, second means yieldingly biasing said latch members toward said bar, said latch member including a portion abuttingly engaged with said abutment when said bar is in said retracted position and positioned, when said bar is in said extended position and said latch member is shifted toward said bar, immediately adjacent said abutment on the side thereof remote from said one end portion of said bar and against said abutment may abut to prevent said bar from being shifted, under the biasing action of said first means, from said extended position to said retracted position, said motor means including first and second solenoid means, said latch member comprising a bar member disposed in upstanding position and said locking bar being disposed below the lower end of said bar member, a horizontal cross member having an upper portion of said bar member adjacent its mid-portion, said upper portion of said bar member and said mid-portion including coasting means establishing a one-way connection between said bar member and said cross member to lift the former in response to upward movement of the mid-portion of the cross member, said first and second solenoid means being mounted from said support structure and having their armatures connected to the opposite ends of said cross member for elevating the corresponding end of said cross member, and thus the mid-portion thereof, upon actuaction of either of said armature means.

Claim 3

In combination, a support structure including at least one marginal edge portion, a lock assembly supported from said support structure, said lock assembly including an elongated locking bar guidingly mounted on said support structure for lengthwise reciprocation between an operative position with one end portion of said bar extended relative to said one marginal edge portion and a retracted position with said one end portion of said bar retracted relative to said one marginal edge portion, laterally enlarged abutment carried by the other end portion of said bar for reciprocation therewith, a latch member guidingly supported from said support member for shifting toward and away from said bar laterally of the latter, first means yieldingly biasing said bar toward said retracted position, second means yieldingly biasing said latch member toward said bar, said latch member including a portion abuttingly engaged with said abutment when said bar is in said retracted position and positioned, when said bar is in said extended position and said latch member is shifted toward said bar, immediately adjacent said abutment on the side thereof remote from said one end portion of said bar and against said abutment may abut to prevent said bar from being shifted, under the biasing action of said first means, from said extended position to said retracted position, said lock assembly including remotely operable motor means operatively connected to said latch member to displace the latter away from said locking bar, said motor means including first and second pairs of solenoids, the first pair of solenoids being adapted to be actuated by a first source of electrical potential of a first voltage value anD the second pair of solenoids being adapted to be actuated by a second source of electrical potential of a second voltage value, said latch member comprising a bar member disposed in upstanding position and said locking bar is disposed below the lower end of said latch bar member, a horizontal cross member having an upper portion of said latch bar member adjacent its mid-portion, said upper portion of said latch bar member and said mid-portion including coacting means establishing a one-way connection between said latch bar member and cross member to lift the former in response to upward movement of the latter, one pair of solenoids being mounted below and having their armatures connected to the opposite ends of said cross member and the other pair of solenoids being mounted above and having their armatures connected to the opposite ends of said cross member.

Claim 4

In combination, a support structure including at least one marginal edge portion, a lock assembly supported from said support structure, said lock assembly including an elongated locking bar guidingly mounted on said support structure for lengthwise reciprocation between an operative position with one end portion of said bar extended relative to said one marginal edge portion and a retracted position with said one end portion of said bar retracted relative to said one marginal edge portion, laterally enlarged abutment carried by the other end portion of said bar for reciprocation therewith, a latch member guidingly supported from said support member for shifting toward and away from said bar laterally of the latter, first means yieldingly biasing said bar toward said retracted position, second means yieldingly biasing said latch member toward said bar, said latch member including a portion abuttingly engaged with said abutment when said bar is in said retracted position and positioned, when said bar is in said extended position and said latch member is shifted toward said bar, immediately adjacent said abutment on the side thereof remote from said one end portion of said bar and against said abutment may abut to prevent said bar from being shifted, under the biasing action of said first means, from said extended position to said retracted position, said lock assembly including remotely operable motor means operatively connected to said latch member to displace the latter away from said locking bar, said motor means including first and second pairs of solenoids, the first pair of solenoids being adapted to be actuated by a first source of electrical potential of a first voltage value anD the second pair of solenoids being adapted to be actuated by a second source of electrical potential of a second voltage value, said latch member comprising a bar member disposed in upstanding position and said locking bar is disposed below the lower end of said latch bar member, a horizontal cross member having an upper portion of said latch bar member adjacent its mid-portion, said upper portion of said latch bar member and said mid-portion including coacting means establishing a one-way connection between said latch bar member and cross member to lift the former in response to upward movement of the latter, one pair of solenoids being mounted below and having their armatures connected to the opposite ends of said cross member and the other pair of solenoids being mounted above and having their armatures connected to the opposite ends of said cross member.

Claim 5

The combination of claim 2 including shiftable handle means movably mounted on said support structure and operatively associated with said latch member to shift the latter away from said bar against the biasing action of said second means.

Claim 6

The combination of claim 2 wherein said armatures are connected to the corresponding ends of said cross member by means of pin-and-slot connections in a manner enabling any one armature to lift the corresponding cross member end independent of movement of any of the other armatures.

Claim 7

The combination of claim 2 including an indicator shaft journaled from said support structure, means operatively associated with said indicator shaft and latch member for oscillating said indicator shaft in response to movement of said latch member toward and away from said locking bar.

Claim 8

The combination of claim 2 including a latch bolt supported from said support structure for lengthwise shifting between extended and retracted positions relative to said one marginal edge portion, manually shiftable latch bolt operating means supported from said support structure and operatively associated with said latch bolt for extending and retracting the latter.

Claim 9

The combination of claim 6 including remotely operable motor means mounted on said support structure and operatively associated with said latch bolt operating means for actuating the latter to extend the latch bolt.

Claim 10

In combination, a support structure including at least one marginal edge portion, a lock assembly supported from said support structure, said lock assembly including an elongated locking bar guidingly mounted on said support structure for lengthwise reciprocation between an operative position with one end portion of said bar extended relative to said one marginal edge portion and a retracted position with said one end portion of said bar retracted relative to said one marginal edge portion, a laterally enlarged abutment carried by the other end portion of said bar for reciprocation therewith, a latch member guidingly supported from said support member for shifting toward and away from said bar laterally of the latter, first means yieldingly biasing said bar toward said retracted position, second means yieldingly biasing said latch member toward said bar, said latch member including a portion abuttingly engaged with said abutment when said bar is in said retracted position and positioned, when said bar is in said extended position and said latch member is shifted toward said bar, immediately adjacent said abutment on the side thereof remote from said one end portion of said bar and against said abutment may abut to prevent said bar from being shifted, under the biasing action of said first means, from said extended position to said retracted position, a latch bolt supported from said support structure for lengthwise shifting between extended and retracted positions relative to said one marginal edge portion, manually shiftable latch bolt operating means supported from said support structure and operatively associated with said latch bolt for extending and retracting the latter, remotely operable motor means mounteD on said support structure and operatively associated with said latch bolt operating means for actuating the latter to extend the latch bolt, said latch bolt operating means being also operatively associated with said locking bar to shift the latter, subsequent to said latch member being shifted away from said locking bar, to its extended position upon actuation of said latch bolt operating means.

Claim 11

In combination, a support structure including at least one marginal edge portion, a lock assembly supported from said support structure, said lock assembly including an elongated locking bar guidingly mounted on said support structure for lengthwise reciprocation between an operative position with one end portion of said bar extended relative to said one marginal edge portion and a retracted position with said one end portion of said bar retracted relative to said one marginal edge portion, a laterally enlarged abutment carried by the other end portion of said bar for reciprocation therewith, a latch member guidingly supported from said support member for shifting toward and away from said bar laterally of the latter, first means yieldingly biasing said bar toward said retracted position, second means yieldingly biasing said latch member toward said bar, said latch member including a portion abuttingly engaged with said abutment when said bar is in said retracted position and positioned, when said bar is in said extended position and said latch member is shifted toward said bar, immediately adjacent said abutment on the side thereof remote from said one end portion of said bar and against said abutment may abut to prevent said bar from being shifted, under the biasing action of said first means, from said extended position to said retracted position, a latch bolt supported from said support structure for lengthwise shifting between extended and retracted positions relative to said one marginal edge portion, manually shiftable latch bolt operating means supported from said support structure and operatively associated with said latch bolt for extending and retracting the latter, remotely operable motor means mounteD on said support structure and operatively associated with said latch bolt operating means for actuating the latter to extend the latch bolt, said latch bolt operating means being also operatively associated with said locking bar to shift the latter, subsequent to said latch member being shifted away from said locking bar, to its extended position upon actuation of said latch bolt operating means.

Claim 12

The combination of claim 2 wherein said support structure comprises a door.

Claim 13

The combination of claim 1 wherein said support structure comprises a door including spaced opposite side panels between which said latch bar member is mounted for reciprocation along a predetermined path, said latch bar member having openings formed therethrough sapced along said path, said latch bar member being spaced slightly inwardly from one of said opposite side panels, a pair of spaced conductive plates insulatively supported from the inner side of said one panel and adapted to be serially connected in an alarm circuit, said plates having registered bores formed therethrough in registry with a predetermined location on said one panel, said path and bores lying in the same plane, whereby an an emergency a further bore may be drilled in said one side panel at said location and an elongated latch bar member operator tool may be passed through said bores into one of said openings for shifting said latch bar operator along said path from the exterior of said door without bridging said conductive plates.