JPS63212139A - Dump and lift device - Google Patents

Abstract

PURPOSE:To obtain a device capable of inclining a load carrying platform to the car body frame and lifting, the load carrying platform to the parallel condition to the car body frame, facilitating the changeover of the load carrying platform between the dump condition and the lift condition. CONSTITUTION:When a load carrying platform 3 is to be dumped, the hooking, by a hooking bolt 35, of a hooking body 23 provided at the front end of a lower guide rail 4 is released by rotating a control lever 33. In this condition, a hydraulic cylinder 15 is extended to rotate an inside supporting body 14, along with an upper guide rail 6 and an outside supporting body 13, with an axis 25 as the center tilting the load carrying platform 3 into the dump condition. Next when the load carrying platform 3 is to be used in the lifted condition, the hydraulic cylinder 15 is extended in the condition where the hooking bolt 35 is set to the hooking body. Hereby the inside and outside supporting bodies 14, 13 are rotated with the axes 25, 24 as the center and engaging rollers 22, 11 of each supporting body 14, 14 are shifted rearward along lower guide rails 6, 4 elevating the load carrying platform 3 in parallel condition.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dumping/lifting device for dumping or lifting an automobile loading platform or the like relative to a vehicle body frame or the like.

BACKGROUND ART Conventionally, a vehicle is provided with a loading platform and a loading platform tilting device, the rear end of the loading platform is rotatably connected to a vehicle body frame via a hinge,
A dump truck is known that is provided with a fluid pressure cylinder that pushes up the front end or center of the loading platform.

However, this method only places the cargo platform in an inclined state with respect to the vehicle body frame, and cannot raise the cargo platform parallel to the vehicle body frame.

Problems to be Solved by the Invention An object of the present invention is to solve the above-mentioned problems by making the loading platform etc. in an inclined state with respect to the vehicle body frame, etc., or raising the loading platform etc. in a parallel state with respect to the vehicle body frame etc. To provide a dump/lift device which can easily switch between a dump state and a lift state of a loading platform or the like.

Means for Solving the Problems The dump and lift operating device of the present invention comprises: a lower guide; a lower guide movable with respect to the lower guide;
The device includes a plurality of supports disposed between the lower and upper conductors, and a moving device for moving the upper conductor relative to the lower conductor, each of which moves one end of the support along the upper and lower conductors. The supports are movably engaged and are rotatably connected to each other via a shaft near the longitudinal center of the supports, the other end of one support is rotatably supported on the upper guide member, and the other support is rotatably connected to the upper guide member. The other end of the lower yg derivative is rotatably supported by a shaft, and the end of the lower guide is provided with a locking body that allows one end of the one support to be freely engaged and detached. It is something.

Operation: A moving device for moving an upper guide provided movably relative to the lower guide is actuated, and a locking body rotatably provided at an end of the lower guide rotates; One end of one of the plurality of supports provided between the lower guide and the upper guide is released from the locking body, and the other end of the other support rotatably supported on the lower guide is set as an axis. When the upper guide member and the plurality of supports rotate simultaneously, the upper guide member is in an inclined state with respect to the lower guide member, and the locking body locks one end of the one support member, the lower guide member and the upper guide member are rotated. One end of the support member movably engaged with the lower guide member and the upper guide member moves along the lower guide member and the upper guide member, the plurality of support members move in an intersecting manner about an axis connecting the central portions in the 13 longitudinal directions thereof, and The upper inductor is raised parallel to the lower inductor by the support.

Example Hereinafter, embodiments of the present invention will be explained in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a truck vehicle equipped with the dumping and lifting device of the present invention, and a loading platform 3 is provided on a body frame 2 of the truck vehicle 1 so as to be able to rise in an inclined or parallel state.

On the vehicle body frame 2, as shown in FIGS. 2 and 3,
Two lower guide rails 4, 4, which serve as lower guides, are provided parallel to each other with an interval, a hollow portion 5 is formed in each of the lower guide rails 4, and a hollow portion 5 is formed on the lower surface of the loading platform 3, as shown in FIG. As a matter of course, two upper guide rails 6.6, which serve as upper guide rails, are provided parallel to each other with an interval between them. An upper guide rail 6 is disposed inside.

Both end portions of a fixing plate 8 are integrally fixed to the lower surface of one end of the lower guide rails 4, 4 near the front end, and an end fixing plate 8 is attached to the lower surface of the rear end of the other end of the lower guide rails 4, 4. Both ends of the connecting rod 10 are fixed to the lower guide rail 4.4 near the center between the fixing plate 8 and the end fixing plate 9. The support shaft plate 1 protrudes near the center and toward the front end.
1.11 is integrally formed, and two support shaft bodies 12.12 are integrally provided on the upper surface of the end fixing plate 9 near both ends.

2 between the lower guide rail 4 and the upper guide rail 6
A wooden external support 13.13 and an internal support 14.14 are arranged, and the lower guide rail 4 is provided with a fluid serving as a moving device for moving the upper guide rail 6 in an inclined or parallel state with respect to the lower guide rail 4. The end of the pressure cylinder 15 is rotatably connected, and the tip of the piston rod 16 of the hydraulic cylinder 15 is rotatably connected to the internal support 14.

An external support 13 is arranged on the outside of the upper guide rail 6, and two internal supports 14 are arranged parallel to each other with a distance between them inside the upper guide rail 6.
Both ends of a connecting plate 170 are fixed to the lower surface of one end of the internal support body 14 near the front end, a connecting body 18 is provided near the front end of one end between the internal supports 14, and a connecting plate 19 parallel to the connecting body 18 is provided at a distance. The connecting body 18 and the connecting plate 19 are integrally fixed at both ends to the inner surface of the internal support 14, and a clamping piece 20.20 is provided between the connecting body 18 and the connecting plate 19.
are provided parallel to the internal support 14 at regular intervals.

An engagement roller 2 is provided on the outer side of the front end, which is one end of the external support body 13.
1 is rotatably supported, and an engagement roller 22 is rotatably supported on the outer side of the surface that is one end of the internal support 14, and the engagement roller 21 of the external support 13 is connected to the lower guide rail 4. The engaging O-ra 22 of the internal support 14 is engaged with the hollow portion 5 of the
is engaged with the hollow part 7 of the upper guide rail 6, and the rear end, which is the other end of the external support body 13, is rotatably supported by the rear end of the upper guide rail 6, and the other end of the internal support body 14 The rear end of the lower guide rail 4 is rotatably supported by the rear end of the lower guide rail 4, and the vicinity of the longitudinal center of the outer support 13 and the inner support/special holiday 14 are rotatably connected via a shaft, and the lower guide A locking body 23 is rotatably provided inside the front end of the rail 4 to allow the engagement roller 21 of the external support body 13 to be freely engaged and disengaged.

The rear end of the external support 13 is rotatably attached to the rear end of the upper guide rail 6 via a shaft 24, and the rear end of the internal support 14 is attached to the end fixing plate 9 at the rear end of the lower guide rail 4. The support shaft 1 is rotatably attached to the support shaft 12 via a shaft 25, and the end of the fluid pressure cylinder 15 is formed on the connecting rod 10.
1 rotatably via @26, and the tip of the screw rod 16 of the fluid pressure cylinder 15 is rotatably attached to a clamping piece 20 provided on the internal support 14 via a shaft 27. has been done.

Both ends of an internal support shaft 28 are rotatably inserted near the longitudinal center of the internal support 14.14.
One end of a connecting link 29 is fixed to each end of the link 8, one end of a fixed shaft 30 is fixed to the other end of the connecting link 29, the other end of the fixed shaft 30 is fixed to one end of a connecting link 31, and the other end of the fixed shaft 30 is fixed to one end of the connecting link 31. One end of an external support shaft 32 is fixed to the other end of the connection link 31, and the other end of the external support shaft 32 is fixed to the other end of the external support 13.
is rotatably inserted near the longitudinal center of the internal support shaft 2.
8 and the external support shaft 32 are arranged on the same line, and the connecting link 31 is located between the upper guide rail 6 and the external support 13.

An operating lever 3 is attached to the front end of the lower guide rails 4, 4.
Both ends of an actuating shaft 34 having a diameter of 3 are rotatably supported, and locking bolts 35 and 35 are provided near both ends of the actuating shaft 34, respectively.

In addition, an operating shaft 3 is located near the front end of the lower guide rails 4, 4.
Both ends of the rotation vJ shaft 36 are rotatably supported in parallel with 4,
Locking bodies 23.23 are integrally fixed to both ends of the rotary wheel 36, and a movable plate 37 is integrally provided at the end of the rotary wheel 36 protruding from one lower guide rail 4.
One end of a spring 38 is connected to 7, and the spring 3
The other end of 8 is connected to the end of the lower guide rail 4.

A notch 39 is formed in a part of the upper horizontal part near the front end of the lower guide rail 4, and the locking body 23 is arranged in the notch 39.
The locking body 23 is formed with four portions 40 that are open on one side and allow the shaft portion of the engagement roller 21 of the external support body 13 to be freely engaged and detached, and an engagement portion that is locked by the tip of the locking bolt 35. 41 is formed.

Next, the operation of this embodiment will be explained.

When using the loading platform 3 in a dump state, the loading platform 3 is placed horizontally on the vehicle body frame 2 and the external support 1 is
The shaft portion of the engaging roller 21 of No. 3 is engaged with the recessed portion 40 of the lower guide rail 4. When the operating lever 33 is rotated by hand as shown in FIGS. 5 and 6, the tip of the locking bolt 35 is engaged by the engaging portion 41 of the locking body 23 provided inside the front end of the lower guide rail 4. This releases the locking body 23 from the locking bolt 35. At this time, the movable plate 37 provided at the end of the rotation shaft 36 to the right of the locking body 23 is pulled by a spring 38 as shown in FIG. Stop. Next, when fluid pressure is supplied by a fluid pressure supply device (not shown) to the fluid pressure cylinder 15 moving on the upper guide rail 6 with respect to the lower guide rail 4, the piston rod 16 of the fluid pressure cylinder 15 protrudes, and the tip of the piston rod 16 The internal support 14 connected to the upper guide rail 6 and the external support 13 rotates about a shaft 25 as shown in FIG. 2, and as shown in FIGS. The locking of the engagement roller 21 of the external support body 13 by
The locking body 23 engaged with the rubber 21 moves, and the internal support 14
The external support shaft 32 coaxial with the internal support shaft 28 moves, and at the same time as the internal support 14, the upper guide rail 6 and the external support 13 are also lined up, so that the upper guide rail 6 is aligned with the lower guide rail 4.
As shown in FIG. 10, the loading platform 3 is tilted forward upward relative to the vehicle body frame 2.

Further, as the rotation shaft 36 rotates, the movable plate 37 provided at the end of the rotation shaft 36 also rotates at the same time, as shown in FIG.
When the line connecting the attachment ends of the springs 38 crosses the line connecting the rotation wheel 36 and the spring attachment part of the movable plate 37, the movable plate 3
7 is pulled by a spring 38, and the locking body 23 provided on the rotating shaft 36 is held in an inclined state.

After the dumping operation is completed, when the fluid pressure is removed from the fluid pressure cylinder 15 using an operation button (not shown), the piston rod 16 of the fluid pressure cylinder 15 retreats due to the weight of the loading platform 3, and the internal support 14 moves @25. The upper guide rail 6 and the external support 13 move together with the internal support 14 at the same time, and the shaft of the engagement roller 21 of the external support 13 engages with the recess 40 of the locking body 23 again. , rotate the locking body 23 as shown in FIG.
A movable plate 37 that rotates around and is provided at the end of the rotating wheel 36.
The line connecting the mounting end of the spring 38 is the rotating wheel 3.
6 and the spring attachment part of the movable Mi37, the spring 38 pulls the movable plate 37, and the locking body 23
is held along the lower guide rail 4, the upper guide rail 6°, the external support 13 and the internal support 14 are parallel to the lower support 4, and the loading platform 3 is parallel to the vehicle body frame 2.
It is placed horizontally on top.

When using the loading platform 3 in a lifted state, press the operating lever 33.
by hand and rotating the operating shaft 34 as shown in FIGS. 12, 13, and 14, the locking bolt 35 provided on the operating shaft 34 is moved, and the locking bolt 35 The locking body 23 is locked with the engaging portion 41 at the tip thereof.

When the fluid pressure supply device supplies fluid pressure to the fluid pressure cylinder 15 with the locking body 23 shown in FIG. 12 locked by the locking bolt 35, the piston rod 16 of the fluid pressure cylinder 15 moves as shown in FIG. As shown, the internal support 14 that protrudes and is connected to the tip of the piston rod 16 rotates around a shaft 25, and the engagement roller 22 of the internal support 14 moves backward along the hollow part 7 of the upper guide rail 6. The external support 13 rotates around the shaft 24, the engagement roller 21 of the external support 13 moves toward the rear end along the hollow part 5 of the lower guide rail 4, and the external support 13 rotates about the shaft 24. The body 13 and the internal support 14 intersect around the internal support shaft 28 and the external support shaft 32, and the upper guide rail 6 is parallel to the lower guide rail 4 via the external support 13 and the internal support 14. The loading platform 3 with the upper guide rail 6 mounted thereon rises upward parallel to the vehicle body frame 2 with the lower guide rail 4 mounted thereon, as shown in FIG.

After the lifting operation is completed, if the fluid pressure is removed from the fluid pressure cylinder 15 using an operation button (not shown), the piston rod 16 of the fluid pressure cylinder 15 will move back due to the weight of the loading platform 3, and the engagement roller 21 of the external support 13 will move downward. While moving toward the front end along the hollow part 5 of the guide rail 4,
The engagement roller 22 of the internal support 14 is connected to the upper guide rail 6
The outer ni support 1 moves toward the front end along the hollow part 7 of the
3 and the internal support 14 move the upper guide rail 6 downward parallel to the lower guide rail 4, and the shaft of the engagement roller 21 of the external support 13 moves into the recess 40 of the locking body 23.
, and the loading platform 3 is placed horizontally on the vehicle body frame 2.

Note that by dividing the upper guide rail 6 into two parts: a part within which the engagement roller 22 of the internal support body 14 can move, and a part which rotatably supports the rear end of the external support body 13, the external support It is also possible to use a single piece of wood as the support shaft rotatably supported near the longitudinal center of the body 13 and the internal support 14,
It is also possible to provide outriggers on the vehicle body frame.

Effects of the Invention As described above, according to the dump/lift device of the present invention, a lower guide, an upper guide provided movably with respect to the lower guide, and a lower guide provided between the lower guide and the upper guide. It consists of a plurality of supports and a moving device that moves the upper guide relative to the lower guide, and engages one end of the supports so as to be movable along the upper guide and the lower body, respectively, and are rotatably connected through a shaft near the center in the longitudinal direction, the other end of one support is rotatably supported on the upper conductor, and the other end of the other support is rotatably connected to the lower conductor. at the end of the lower inductor;
By providing a locking body that allows one end of the one support to be freely engaged and detached, the loading platform can be placed in an inclined state with respect to the vehicle body frame, or the loading platform can be raised to a state parallel to the vehicle body frame, It is possible to easily switch between the dump state and the lift state of the loading platform.

[Brief explanation of the drawing]

Fig. 1 is a schematic front view of a truck vehicle equipped with a dump/lift device according to an embodiment of the present invention, Fig. 2 is a front view of the same dump/lift device in a dumping state, and Fig. 3 is a lower guide. FIG. 4 is a plan view of the rail, FIG. 4 is a plan view of the upper guide rail, external support body, and internal support body; FIG. The figure is a plan view of Fig. 5, Fig. 7 is a rear view of Fig. 5, Fig. 8 is a partially cutaway front view of the front end of the lower guide rail when the locking body is rotated, and Fig. 9 is Fig. 8 is a plan view, Fig. 10 is a schematic front view of the truck in a dump operation state, Fig. 11 is a rear view of Fig. 8, and Fig. 12 is a lower guide rail when the operating lever is in lift operation. 13 is a plan view of FIG. 12; FIG. 14 is a rear view of FIG. 12; FIG. 15 is a front view of the dump/lift device in a lifted state; The figure is a schematic front view of a truck vehicle in a lift operating state. 1... Truck vehicle, 2... Vehicle body frame, 3...
Loading platform, 4... Lower guide rail, 5... Hollow part, 6
... Upper guide rail, 7... Hollow part, 8... Fixing plate, 9... End fixing plate, 10... Connecting rod, 11...
... Support shaft plate, 12 ... Support shaft body, 13 ... External support body, 14 ... Internal support body, 15 ... Fluid pressure cylinder, 16 ... Piston rod, 17 ... Connection Board, 18
... Connecting body, 19... Connecting plate, 20... Clamping piece,
21.22... Engagement roller, 23... Locking body, 24
．． 25.26.27...Shaft, 28...Internal support shaft, 2
9... Connecting link, 30... Fixed shaft, 31... Connecting link, 32... External support shaft, 33... Operation lever, 34... Operating shaft, 35... Locking bolt , 36...
・Rotation axis, 37... Moving plate, 38... Spring,
40... recessed part, 41... engaging part.

Claims (1)

[Claims] a lower guide; an upper guide provided movably with respect to the lower guide; a plurality of supports disposed between the lower guide and the upper guide; and a moving device for moving the upper guide with respect to the lower guide. one end of the support is movably engaged along the upper guide member and the lower guide member, and the longitudinal center of the support is rotatably connected via a shaft, and one end of the support is movably engaged along the upper guide member and the lower guide member, and The other end is rotatably supported on an upper guide, the other end of the other support is rotatably supported on a lower guide, and one end of the one support is engaged with the end of the lower guide. A dump/lift device characterized by being provided with a locking body that can be detached.