JP2005060078A - Cargo handling device such as truck load-carrying platform - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple and inexpensive cargo handling device such as a truck load-carrying platform arranging a floor plate movable forward and backward on a bottom part of a cargo carrying base such as the truck load-carrying platform, provided with a pressing wall capable of being locked in left and right side plates of the load-carrying platform on the floor plate, allowing only the floor plate to move when locking, and moving together with the floor plate when moving, allowing small number of workers to perform work safely and efficiently, and locking the pressing wall by automatic minute control to realize stable moving of the pressing wall. <P>SOLUTION: The pressing wall 2 is locked by forming a protruding bar part 8 on a load-carrying platform side plate 6 side in the direction of length of the side plate 6 and providing a chuck mechanism 22 by a cylinder 21 on the pressing wall 2 to nip the protruding bar part 8 by the chuck mechanism 22. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cargo handling device such as a truck bed.

  The inventor of the present invention first invented an apparatus for unloading a truck bed that is simple and inexpensive, and that can be sufficiently safely and efficiently performed by a small number of people. Patent rights were acquired as shown in 1.

Japanese Patent No. 30625568

  As shown in FIGS. 3 to 11, the content is made of a steel plate or the like on the bottom plate 14 of the loading platform 12 of the truck 11, and a slide plate 15 having the same width as the bottom plate 14 is placed on the back of the cabin 13. A cylinder 16 is disposed between the front ends of the slide plate 15 as a mechanism for moving the slide plate 15 back and forth.

  Further, on the slide plate 15, the side ends can be locked to the left and right load platform side plates 17 of the load platform 12, and the edge of the slide plate 15 is cut at the time of locking, and only the slide plate 15 moves. At the time of stopping, a partition plate 18 that is coupled with the slide plate 15 by friction or the like and moves together with the slide plate 15 is provided. The partition plate 18 is preferably made of a steel plate or the like and has a base 18 a having a certain width so as to stand on the slide plate 15.

  As shown in FIG. 3, assuming that there is a load A on the loading platform 12 of the truck 11, the rear end is positioned where the bit 20 is located, and the rear end surface of the loading platform 12 is opened. Next, as shown in FIG. 4, when the cylinder 16 is extended, the slide plate 15 moves from the cabin 13 side toward the rear end, and the load A and the partition plate 18 on the slide plate 15 also move accordingly. In this state, the partition plate 18 is not locked to the loading platform side plate 17. As a result of the sliding of the slide plate 15, the rear end of the slide plate 15 protrudes on the bit 20 behind the loading platform 12 with the load A placed thereon.

  Next, as shown in FIG. 5, the bulkhead plate 18 is locked to the loading platform side plate 17 with a stop pin or the like, the cylinder 16 is reduced, and the slide plate 15 is pulled to the cabin 13 side as it is. Since it is fixed by the plate 18, it does not move as it is, and the portion protruding on the bit 20 at the rear of the loading platform 12 disappears and the slide plate 15 is lost, so it falls into the bit 20.

  When the load A is dropped in this manner, the partition plate 18 is locked to the loading platform side plate 17 as shown in FIG. 6, the cylinder 16 is extended again, and the slide plate 15 is pushed out backward. As shown in FIG. 10, (1) the slide plate 15 is pushed out, (2) the partition plate 18 is locked, (3) the slide plate 15 is pulled in, (4) the cargo A is dropped, and (5) the partition plate 18. The procedure of unlocking is repeated to drop all the loads A into the bit 20.

  FIG. 11 shows a state in which the entire load A is unloaded. In order to prepare for the loading again, the partition plate 18 is moved to the front portion of the slide plate 15 and the cabin 13 side.

  The movement of the partition plate 18 to the front is repeated by repeatedly engaging and releasing the load carrier side plate 17 so that the slide plate 15 is engaged only when moving backward, or by moving the crane plate It is conceivable to use other means using other devices.

  Moreover, although the inventor is the case of a container, the following patent document is shown as an example of latching of the partition plate 18 and the loading platform side plate 17. FIG.

JP 2002-114290 (Japanese Patent Application No. 200-307713)

  In Patent Document 2, as the fixing means 116, as shown in FIG. 12, locking protrusions 117a are provided on the side plate of the box 110 at appropriate intervals, and an upper portion of one pushing wall 112 (corresponding to the partition plate 18). A pendulum type or seesaw type lock bar 117b that is hooked on the locking projection 117a is provided at the left and right ends.

  As a first stage, when the floor board 113 (not shown) is moved by the cylinder in the direction of the load discharge port 111 (outward direction), the fixing means 116 is free and the pushing wall 112 placed on the floor board 113 is used. And the load move together with the floor plate 113 so that both are carried by the floor plate 113.

  Next, as a second stage, the lock bar 117b is hooked on the locking projection 117a to fix the pushing wall 112 to stop the load in place, and only the floor plate 113 is moved in the counterload discharge port direction (return direction) by the cylinder. Move.

  Thereafter, the first stage and the second stage are sequentially repeated to move the pushing wall 112 and the load to the load discharge port 111, and discharge the load from the load discharge port 111.

  In order to return the pushing wall 112 to the original position of the original box 110 after discharging the load, basically the reverse operation may be performed, but the floor plate 113 is directed in the direction of the load discharge port 111 (outward direction). When moving, the fixing means 116 is operated, and when moving in the counter load discharge direction (return path direction), the fixing means 116 is set free and the pushing wall 112 is carried by the floor plate 113.

  In the truck loading platform unloading apparatus disclosed in Patent Document 1, the engagement between the partition plate 18 and the loading platform side plate 17 is performed by a stop pin, and is not limited to this. Any mechanism can be used as long as it can be locked and released at an arbitrary position in the length direction of the cargo bed side plate 17 or at an appropriate interval, but there is no specific presentation.

  Further, in the rack system using the locking projection 117a and the lock bar 117b of Patent Document 2, locking can be performed only at least the interval between the locking projections 117a, and the fineness is lacking.

  Furthermore, in order to move the push wall 112 in the reverse direction, it is necessary to switch the lock bar 117b, which makes it difficult to perform automatic control.

  Further, as shown in the drawing, when the upper end of the one pushing wall 112 (corresponding to the partition plate 18) is locked, there is a possibility that a force is applied to the pushing wall 112 in some form and the pushing wall 112 is beaten. is there.

  This shift may be due to a force that the load A tends to collapse. In the example of Patent Document 1, when the load falling into the bit 20 is piled up, the slide plate 15 moves so as to be inserted therein, but the partition plate 18 is disturbed by the piled load and does not move. , It can be misaligned.

  In order to eliminate the inconvenience of the conventional example, the present invention according to claim 1 arranges a floor plate which can be moved back and forth on the bottom of a load carrier such as a truck carrier, and on the left and right side plates of the carrier, on this floor plate. In a cargo handling device such as a truck bed that has a pushing wall that moves only when it is locked and moves with the floor plate when moving, the pushing wall is locked to the loading plate side plate side with the ridge on the side plate. It is formed in the length direction, and on the other hand, a gist is provided by providing a chuck mechanism with a cylinder on the push wall and sandwiching the chuck mechanism to the protruding portion.

  According to the first aspect of the present invention, a load such as a chip is placed on a floor plate that can move back and forth, and moves rearward together with the floor plate, so that a rear load goes out from a truck bed or the like. At this stage, the load is on the floor plate, but if the floor plate is pulled forward while locking the pushing wall to the loading plate side plate and restraining the front end of the load, the floor plate under the rear load disappears and falls.

  The lock between the push wall and the loading platform side plate is released, the load is moved backward together with the floor plate of the load, and the subsequent operation is repeated to drop the load sequentially from the rear.

  The pushing wall is locked by forming a protrusion on the side of the side plate in the length direction of the side plate, and on the other hand, the holding wall is provided with a chuck mechanism using a cylinder, and the chuck mechanism is sandwiched between the protrusions. It can be locked at an arbitrary position and at an arbitrary timing, and can be easily and automatically controlled by hydraulic control of the cylinder.

  Even if the cylinder is used for the back and forth movement of the floor board, its stroke may be small and small, and the pushing wall does not push out the load such as chips, so its own strength and locking to the loading board side plate are also possible It doesn't have to be very robust.

  The gist of the present invention described in claim 2 is that the chuck mechanism is provided on the lower side of the pressing wall, and correspondingly, the protrusion is also formed on the lower side of the loading platform side plate.

  According to this invention of Claim 2, it can prevent that a pushing wall is beaten by locking a pushing wall on the lower side. In particular, if the push wall has a support plate as a base at the lower end, this portion or the most stable portion in the vicinity thereof is locked.

  The gist of the present invention described in claim 3 is that a protective flange is formed on the protrusion.

  According to this invention of Claim 3, it can prevent that a thing (especially when load is a loose article etc.) mounts on a rib part on a collar part. As a result, it is possible to prevent the chuck mechanism from being damaged by biting foreign matter.

  In the invention according to claim 4, the chuck mechanism has a rotating claw with respect to the fixed claw, extends the cylinder and pushes the rotating claw toward the fixed claw, and the protrusion is formed by the fixed claw and the rotating claw. The gist is to pinch the part.

  According to this invention of claim 4, the chuck mechanism does not directly extend the cylinder and press and fix it to the ridge portion with the rod, but it is performed through the rotating claw, and the position of the cylinder is determined. It can be selected so that it does not get in the way, and the impact of the protrusion can be made indirect, so that the impact can be mitigated and an unreasonable load can be prevented from being applied to the cylinder.

  As described above, the cargo handling device such as the truck bed of the present invention is a device that is simple and inexpensive, and that can be safely and efficiently operated with a small number of people. In a loading mechanism for a truck bed, in which a floor plate that can be moved back and forth is arranged on the bottom of the truck bed, and only a floor plate moves on the floor plate when it is locked and moves with the floor plate when moving, The locking can be performed finely and automatically controlled, and a stable movement of the pushing wall can be realized.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a cargo handling apparatus such as a truck bed according to the present invention, and FIG. 2 is a front view of the main part of the same.

  In the figure, reference numeral 1 denotes a truck bed, which transports scrap iron and other chips, granular materials such as gravel as cargo. The truck bed 1 is open at the rear end. In the present invention, a floor plate 4 having the same width as the bottom plate 3 is placed on the bottom plate 3 which is the bottom of the load platform 1. The floor plate 4 is made of a steel plate or the like, and a cylinder 5 is disposed between the back of the truck cabin and the front end of the floor plate 4 as a mechanism for moving the floor plate 4 back and forth.

  Further, on the floor plate 4, the side edges can be locked to the left and right loading platform side plates 6 of the loading platform 1, and the edge of the floor plate 4 is cut when locked, and only the floor plate 4 moves, and when not locked, the floor plate is moved. 4 and a push wall 2 that moves together with the floor plate 4 is provided.

  The pushing wall 2 is made of steel, and a partition plate 2b is erected on a support plate 2a. The lower portion of the partition plate 2b has an inclined surface 2c that protrudes further forward.

  As a mechanism for locking the push wall 2 to the loading platform side plate 6, a rail-shaped protrusion 8 is formed in the length direction of the loading platform side plate 6 at the lower portion of the loading platform side plate 6. In the illustrated example, the protruding portion 8 is a stripped steel material having a rectangular cross section, but is not limited thereto.

Further, a protective flange 9 is formed on the same carrier side plate 6 above the protruding portion 8.
This flange portion 9 is also provided in the length direction of the cargo bed side plate 6, and forms an inclined surface 9 a that faces or is curved on the upper surface, and projects laterally at least as much as the protruding portion 8.

On the other hand, a chuck mechanism 22 by a cylinder 21 is provided at the lower part (lower side) of the push wall 2 so that the protrusion 8 can be clamped by the chuck mechanism 22.

  In the illustrated example, the chuck mechanism 22 is formed by forming a part of the mounting holder 23 as a fixed claw 24, and providing a rotating claw 25 for the fixed claw 24. Then, the protruding portion 8 is clamped.

  The rotating claw 25 is a fan-shaped cam-like body. One end of the rotating claw 25 is attached to the holder 23, and the cylinder 21 attached to the holder 23 is extended to push the rotating claw 25 toward the fixed claw 24. It can be done.

  Further, as described above, the rotating claw 25 is fan-shaped and has an arc-shaped portion 25a. However, the arc-shaped portion 25a becomes a portion for escaping from the flange portion 9 and does not hit the flange portion 9 when rotating.

  Next, the usage will be described. Assuming that there is a load on the loading platform 1 of the truck, the rear end is positioned where the bit is located and the vehicle is stopped, and the rear end surface of the loading platform 1 is opened.

  When the cylinder 5 is extended, the floor plate 4 moves from the cabin B side toward the rear end, and the load on the floor plate 4 and the pushing wall 2 also move accordingly. In this state, the chuck mechanism 22 does not act, and the pushing wall 2 is not locked to the cargo bed side plate 6.

  As a result of the sliding of the floor plate 4, the rear end of the floor plate 3 protrudes on the bit 20 (see FIG. 4) behind the loading platform 1 with the cargo loaded.

  Next, when the cylinder 5 is reduced and the floor plate 4 is pulled to the cabin B side as it is, the cylinder 21 is extended to push the rotating claw 25 toward the fixed claw 24, and the ridge 8 is moved to the chuck mechanism 22. Pinch with.

  As a result, the pushing wall 2 is locked to the loading platen side plate 6 side, and the load is not moved because the front end portion is fixed to the pushing wall 2, and the portion protruding on the bit 20 is behind the loading bed 1. Since the floor board 4 is lost, it falls into the bit 20.

  Thus, when pulling only the floor board 4 to the cabin B side, since the pushing wall 2 is locked to the protruding portion 8 of the cargo bed side board 6, only the floor board 4 can be moved.

  If the load is dropped, it is locked to the loading platform side plate 6, the cylinder 5 is extended again, and the floor plate 4 is pushed backward. Thereafter, (1) the floor plate 4 is pushed out, and (2) the pushing wall 2 is locked. , (3) Pulling in the floor plate 4, (4) Dropping the load, and (5) Unlocking the floor plate 4 are repeated to drop all the loads into the bit 20.

  In order to prepare for loading again from the state where all the cargo is unloaded, the push wall 2 is moved to the front part of the floor plate 4 and the cabin B side.

  By pushing the protruding portion 8 of the chuck mechanism 22, the pushing wall 2 is locked to the loading platform side plate 6 side, and if the cylinder 5 is extended, the floor plate 4 moves from the cabin A side toward the rear end, and the floor plate 4 Only move.

  Next, when the cylinder 5 is reduced and the floor plate 4 is pulled to the cabin B side as it is, the chuck mechanism 22 is opened in this state, and the pushing wall 2 is not locked to the cargo bed side plate 6 side. The upper wall 2 also moves accordingly.

  Thereafter, the procedure of (1) pushing out the floor plate 4, (2) locking the pressing wall 2, (3) pulling in the floor plate 4, and (4) releasing the locking of the floor plate 4 is repeated to move the pressing wall 2 to the front. Move.

  Although the above-described embodiment has been described as a cargo handling device for a truck bed, since the container is directly mounted on a trailer and transported, the present invention can be applied to a container.

  In addition, the present invention can be used as an alternative to a conveyor when a load is placed on a ship deck or on a land stock yard by a conveyor or the like to be sent.

1 is a perspective view showing an embodiment of a cargo handling device such as a truck bed according to the present invention. 1 is a front view of a main part of an embodiment of a cargo handling device such as a truck bed according to the present invention. It is a vertical side view which shows the 1st process of the operation | movement of a prior art example. It is a vertical side view which shows the 2nd process of the operation | movement of a prior art example. It is a vertical side view which shows the 3rd process of operation | movement of a prior art example. It is a vertical side view which shows the 4th process of operation | movement of a prior art example. It is a vertical side view which shows the 5th process of operation | movement of a prior art example. It is a vertical side view which shows the 6th process of operation | movement of a prior art example. It is a vertical side view which shows the 7th process of operation | movement of a prior art example. It is a vertical side view which shows the 8th process of operation | movement of a prior art example. It is a vertical side view which shows the 9th process of operation | movement of a prior art example. It is a perspective view which shows another prior art example.

Explanation of symbols

A ... Loading 1 ... Loading platform 2 ... Push wall 2a ... Support plate 2b ... Bulkhead plate 2c ... Inclined surface 3 ... Bottom plate 4 ... Floor plate 5 ... Cylinder 6 ... Loading platform side plate 8 ... Projection part 9 ... Saddle 9a ... Inclined surface 11 ... Truck 12 ... Loading platform 13 ... Cabin 14 ... Bottom plate 15 ... Slide plate 16 ... Cylinder 17 ... Loading platform side plate 18 ... Bulkhead plate 18a ... Bottom platform 20 ... Bit 21 ... Cylinder 22 ... Chuck mechanism 22 ... Holder 23 ... Holder 24 ... Fixed claw 25 ... Rotating claw 25a ... Arc portion 110 ... Box 111 ... Load discharge port 112 ... Push wall 113 ... Floor plate 116 ... Fixing means 117a ... Locking protrusion 117b ... Lock bar

Claims (4)

A floor plate that can be moved back and forth is placed on the bottom of the load carrier such as a truck bed, and on this floor plate, it can be locked to the left and right side plates of the cargo bed, and only the floor plate moves when locked, together with the floor plate when moving In a cargo handling device such as a truck bed provided with a moving pushing wall,
The push wall is locked by forming a ridge on the side of the loading platform side plate in the length direction of the side plate, while providing a chuck mechanism with a cylinder on the push wall and clamping the chuck mechanism to the ridge. A cargo handling device such as a truck bed. 2. A cargo handling apparatus such as a truck bed according to claim 1, wherein the chuck mechanism is provided below the push wall, and the protrusions are also formed below the bed side plate correspondingly. 3. A cargo handling apparatus such as a truck bed according to claim 1 or 2, wherein a protective flange is formed on the ridge. The chuck mechanism has a rotating claw with respect to the fixed claw, extends the cylinder, pushes the rotating claw toward the fixed claw, and clamps the protruding portion between the fixed claw and the rotating claw. Cargo handling equipment such as truck loading platform.

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