Loading apparatus with a tiltable and extendable fork carriage mounted thereon

Claim 2

Loading apparatus comprising a mobile chassis, telescopic boom means mounted adjacent one end thereof to said chassis for pivotal movement about a horizontal axis, first power means for pivotally moving said boom means to thereby cause the other end of said boom means to be raised and lowered, first support means mounted on said other end of said boom means, second support means mounted on said first support means for pivotal movement about a second horizontal axis parallel to said first axis, second power means connected to said second support means for pivotally moving said second support means about said second axis, fork means, and third support means carried on said second support means mounting said fork means to said second support means for reciprocal movement relative to said second support means, whereby said fork means can be extended and retracted relative to said boom means.

Claim 3

Loading apparatus in accordance with claim 1 in which said third support means includes a hydraulic cylinder fixedly anchored to said second support means and a piston slidably disposed in said cylinder for reciprocating said fork means.

Claim 4

Loading apparatus in accordance with claim 2 in which said fork means comprises a pair of laterally spaced fork members, said fork means being fixedly connected to said slidable piston for movement in the same direction as said piston.

Claim 5

Loading apparatus in accordance with claim 3 in which said third support means includes a rectangular frame having vertical side portions, a transverse bottom portion and a transverse top portion, said fork members being fixedly attached to said transverse bottom portion.

Claim 6

Loading apparatus in accordance with claim 1 in which said third support means includes a pair of rams, each ram including a hydraulic cylinder and a piston slidably disposed therein, said third support means further including a pair of reciprocal elongated members connected at one end to the free ends of said pistons, said fork means being fixedly connected to the other ends of said elongated members.

Claim 7

Loading apparatus in accordance with claim 5 in which said elongated mambers constitute a pair of laterally spaced arms and means constraining said arms for reciprocal movement in a rectilinear path by said piston rods.

Claim 8

Loading apparatus in accordance with claim 6 in which said third support means includes a box-like housing for each of said arms, said arms being slidable in the box-like housing with which it is received and each box-like housing constraining its arm for reciprocal movement in said rectilinear path.

Claim 9

Loading apparatus in accordance with claim 7 in which said arms are channel-shaped having parallel sidewalls and a bottom wall, said box-like housings having parallel sidewalls, a bottom wall and a top wall providing a recess conforming to the cross section of said arms, the sidewalls, bottom wall and top wall of said box-like housings constraining the sidewalls and bottom walls of said arms to provide said reciprocal movement in said rectilinear path.

Claim 10

Loading apparatus in accordance with claim 8 in which said second support means includes a rectangular frame pivotally mounted on said first support means and one side of each box-like housing is fixedly secured to one side of said rectangular frame.

Claim 11

Loading apparatus in accordance with claim 8 including a turntable, said one end of said boom means being mounted on said turntable, and stabilizer means at each end of said chassis for supporting said chassis irrespective of the rotation position of said turntable.

Claim 12

Loading apparatus comprising a mobile chassis, a turntable on said chassis, a pair of upright standards on said turntable, a horizontal shaft extending between said standards to provide a first pivotal axis, a telescopic boom assembly mounted adjacent one end thereof to said shaft for pivotal movement about said axis, a boom head fixedly attached to the free or other end of said boom assembly, a carriage head pivotally mounted on said boom head, a fork carriage, and means reciprocably mounting said fork carriage to said carriage head so that said fork carriage can be extended and retracted with respect to said boom assembly.

Claim 13

Loading apparatus comprising a mobile chassis, a turntable on said chassis, a pair of upright standards on said turntable, a horizontal shaft extending between said standards to provide a first pivotal axis, a telescopic boom assembly mounted adjacent one end thereof to said shaft for pivotal movement about said axis, a boom head fixedly attached to the free or other end of said boom assembly, a carriage head pivotally mounted on said boom head, a fork carriage, and means reciprocably mounting said fork carriage to said carriage head so that said fork carriage can be extended and retracted with respect to said boom assembly.

Claim 14

Loading apparatus in accordance with claim 11 in which said last-mentioned means includes a pair of hydraulic cylinders anchored to the opposite sides of said carriage head, each cylinder having slidably disposed therein a reciprocal piston, and an arm connected to the free end of each of said reciprocal pistons, said arms also being connected to said fork carriage.

Claim 15

loading apparatus in accordance with claim 12 in which said last-mentioned means also includes a pair of box-like housings each having parallel sidewalls, a bottom wall and a top wall, said arms being slidable within said housings.

Claim 16

Loading apparatus in accordance with claim 13 in which one sidewall of each of said housings is secured to said carriage head.

Claim 17

Loading apparatus in accordance with claim 14 in which said hydraulic cylinders are contained in said housings, the anchoring of said cylinders to the opposite sides of said carriage head being via said sidewalls.

Claim 18

Loading apparatus in accordance with claim 15 including a pin extending between the sidewalls of each housing and part of the cylinder contained therein.

Claim 19

Loading apparatus in accordance with claim 16 including stabilizer means at each end of said chassis so as to stabilize said chassis for various rotative positions of said turntable.

Claim 20

Loading apparatus in accordance with claim 17 in which said boom assembly includes first and second telescopically received boom sections, said first boom section being pivotally mounted on said shaft and said boom head being fixedly attached to said second boom section.

Claim 21

Loading apparatus comprising a mobile chassis, telescopic boom means mounted adjacent one end thereof to said chassis for pivotal movement about a horizontal axis to thereby permit the other end of said boom means to be raised and lowered, means pivotally attached to the other end of said boom means, a reciprocal means mounted on said pivotal means, and a forklift mounted on said reciprocal means so that said forklift can be tilted into various angular positions relative to said other end of the boom means as determined by the angular position of said pivotal means and can also be extended and retracted into various positions relative to the other end of said boom means as determined by said reciprocal means.

Claim 22

Loading apparatus comprising a mobile chassis, telescopic boom means mounted adjacent one end thereof to said chassis for pivotal movement about a horizontal axis to thereby permit the other end of said boom means to be raised and lowered, means pivotally attached to the other end of said boom means, a reciprocal means mounted on said pivotal means, and a forklift mounted on said reciprocal means so that said forklift can be tilted into various angular positions relative to said other end of the boom means as determined by the angular position of said pivotal means and can also be extended and retracted into various positions relative to the other end of said boom means as determined by said reciprocal means.

Claim 23

Loading apparatus comprising a mobile chassis, telescopic boom means supported adjacent one end for pivotal movement about a generally horizontal axis, power means connected to said boom means for causing pivotal movement of said boom means about said horizontal axis to raise and lower the other end of said boom means, generally vertical support means pivotally mounted adjacent said other end of said boom means for pivotal movement about a second generally horizontal axis, power means connected to said support means for causing pivotal movement of said support means about said second axis relative to said boom means, additional support means mounted on said generally vertical support means, said additional support means projecting generally horizontally from said generally vertical support means when said generally vertical support means has been pivoted into a vertical position by said last-mentioned power means, said additional support means including a member having a free end reciprocally movable with respect to said generally vertical support means, and a forklift fixedly mounted on the free end of said reciprocally movable member.

Claim 24

Loading apparatus comprising a mobile chassis, telescopic boom means supported adjacent one end for pivotal movement about a generally horizontal axis, power means connected to said boom means for causing pivotal movement of said boom means about said horizontal axis to raise and lower the other end of said boom means, generally vertical support means pivotally mounted adjacent said other end of said boom means for pivotal movement about a second generally horizontal axis, power means connected to said support means for causing pivotal movement of said support means about said second axis relative to said boom means, additional support means mounted on said generally vertical support means, said additional support means projecting generally horizontally from said generally vertical support means when said generally vertical support means has been pivoted into a vertical position by said last-mentioned power means, said additional support means including a member having a free end reciprocally movable with respect to said generally vertical support means, and a forklift fixedly mounted on the free end of said reciprocally movable member.

Claim 25

Loading apparatus comprising a mobile chassis, a pair of standards extending in an upright direction from said chassis, a horizontal shaft extending between said standards to provide a first pivotal axis, a telescopic boom assembly mounted adjacent one end thereof to said shaft for pivotal movement about said axis, a boom head fixedly attached to the free or other end of said boom assembly, a carriage head pivotally mounted on said boom head, a fork carriage, and means reciprocably mounting said fork carriage to said carriage head so that said fork carriage can be extended and retracted with respect to said boom assembly.

Claim 26

Loading apparatus comprising a mobile chassis, a pair of standards extending in an upright direction from said chassis, a horizontal shaft extending between said standards to provide a first pivotal axis, a telescopic boom assembly mounted adjacent one end thereof to said shaft for pivotal movement about said axis, a boom head fixedly attached to the free or other end of said boom assembly, a carriage head pivotally mounted on said boom head, a fork carriage, and means reciprocably mounting said fork carriage to said carriage head so that said fork carriage can be extended and retracted with respect to said boom assembly.