JP2005170589A - Unloading device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an unloading device capable of discharging loads at one stroke effectively with little time without receiving much weight with an eye to cutting the friction of loads at the time of pushing out the loads, and capable of dismissing the fear of load collapse. <P>SOLUTION: In a loading place surrounded by a floor plate and a wall plate, three sides out of four is surrounded by the wall plate, and the remaining one side is used as an opening face 22 for discharging loads. Furthermore, an inner wall plate 23 surrounding the three sides by a front end wall plate 23a, and left and right wall plates 23b, 23c is disposed inside the wall plate. This inner wall plate 23 is moved by a pushing or pulling device, thereby pushing the loads rearward and discharging them from the floor plate. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a cargo handling apparatus capable of efficiently discharging a load on a carrier such as a truck bed or a container or a loading body such as a stock yard.

  Taking a truck bed as an example, as a method of unloading a load of fine things that are not a lump such as scrap iron or other chips, gravel, etc., a so-called dump system that lifts and lowers the bed itself so that it tilts with a cylinder, There is a platform method in which the truck itself is placed on the platform and the truck is tilted for each platform to discharge the load, but the dump method is more than a certain tilt angle to smoothly and completely discharge all the chips on the platform. However, there is a limit in the cylinder, and when the loading platform tilts, the center of gravity moves to an unstable state.

  Further, in the platform system, the entire apparatus becomes large, and the unloading work cannot be performed unless the platform apparatus is located. Moreover, even if the truck is not properly stopped or raised during a series of operations, the truck falls and becomes a serious disaster.

  On the other hand, a feed plate type in which a feed plate that moves backward by a cylinder is provided on the loading platform and the chips on the loading platform are pushed backward by this feeding plate is also conceivable. Since the plate has to be moved, the stroke of the cylinder is a problem, which is usually not possible because a cylinder of that length cannot be prepared. Also, there is no way to move the cylinders one after another, but the fixing method is complicated and the usability is troublesome. In addition, since the feed plate has a force to push the tip backward, the cylinder is required to have a strong thrust.

  The inventor of the present invention first invented an unloading device for a truck bed, which is simple and inexpensive, and can be 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. 6 to 14, 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. 6, 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. 7, 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. 8, 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 toward the cabin 13 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 way, the partition plate 18 is locked to the loading platform side plate 17 as shown in FIG. 9, the cylinder 16 is extended again, and the slide plate 15 is pushed backward, and thereafter, FIG. As shown in FIG. 13, (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. 14 shows a state in which all the load A is unloaded, but in order to prepare for 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.

  Also, there is the following patent document as an apparatus that can efficiently unload a truck loaded without an inclined loading platform.

JP 11-310073 A (Unloading device for trucks)

  This is a truck unloading device for unloading a truck from a truck bed which is an unloading door 3 whose at least one loading wall can be opened and closed. A take-up device 1 that can be inserted into the upper part of the door 3 and can take up the sheet 2, and a load-unloading door lock hook portion 5 provided on the loading platform wall in order to keep the unloading door 3 open. And a take-up device 1 are provided.

  Further, a handle member 7 is attached to the end portion 2a on the sheet drawing side, and the end portion on the sheet drawing side is held in a state of being folded upward by the handle member 7.

  The load 8 such as gravel is transported by a truck while being loaded on the sheet 2 laid on the loading platform surface 4, and when it arrives at the place where the loading 8 is unloaded, the unloading door 3 is at least level with the loading platform surface 4. Until the sheet 2 is wound up. Then, the load 8 placed on the sheet 2 also moves together with the sheet 2 to the winding device 1 side, that is, the unloading door 3 side, and eventually passes from the loading platform surface 4 to the unloading door 3 and below the loading platform. Fall.

  In the truck loading platform unloading apparatus of Patent Document 1, the partition plate 18 moves intermittently according to the movement of the slide plate 15, and when only the slide plate 15 moves, the movement of the partition plate 18 stops. Therefore, it takes too much time to discharge the load all at once.

  Further, in the truck unloading device of Patent Document 2, all the load of the load is applied to the seat 2, and the strength of the seat 2 is required to be strong and strong, and the load collapses. There is also a possibility that the sheet 2 may spill out and cannot be unloaded.

  In Patent Document 2, in the description of the specification, “When loading a sheet, the load on the sheet tries to move to the original position from the sheet in an attempt to stay in the original position due to the law of inertia. Since the end of the sheet on the drawer side is folded back upward, the load is folded back upward and is not easily spilled from the sheet by being hooked on the end of the sheet on the drawer side. However, when the load collapses, it does not get caught by the end of the pocket-like sheet on the drawer side. However, the first thing of the collapse of the load may be caught, but after that, it slides on it and gets over the end.

  The object of the present invention is to eliminate the inconvenience of the conventional example, and to cut off the friction of the load when pushing out the load, without being subjected to much load, efficiently and without taking time. An object of the present invention is to provide an unloading apparatus that can discharge a load and does not have to worry about collapse of the load.

  In order to eliminate the inconvenience of the conventional example, the present invention according to claim 1 is a place for loading a load surrounded by a floor plate and a wall plate, three of four sides are surrounded by a wall plate, and the other one is for discharging a load. An inner wall plate that surrounds the three sides of the front end wall plate and the left and right wall plates is arranged inside the wall plate, and the inner wall plate is moved by pushing or pulling out to push the load backward from above the floor plate. The gist is to discharge.

The invention according to claim 1 has the following effects.
The loading place is surrounded by floor boards and wall boards, three of the four sides are enclosed by wall boards, and the other one is used as an opening surface for discharging cargo. It is discharged by moving to. Then, when trying to push this load from the end with a push wall or the like, the load of fine things that are not a lump such as scrap iron, other chips, gravel, etc. will rise up and spill out from the upper ends of the left and right wall plates. In addition, the resistance against the floor and wall plates of the load is large, and it cannot be pushed unless it is a fairly strong force. Therefore, the present invention further includes an inner wall plate that surrounds the three sides of the front end wall plate and the left and right wall plates inside the wall plate, and cuts the edges of the left and right wall plates and the load with the inner wall plate. Push the load with the end wall plates that connect the parts together. As a result, the entire load moves together with the inner wall plate and does not rise up. Moreover, although there is friction between the floor board and the load, the load can be pushed out against this by eliminating the left and right friction as described above. The pushed load goes out of the opening for discharging the load from the end of the floor board and is discharged.

  The gist of the present invention is that the left and right wall plates of the inner wall plate are flexible, the drawer device is a winding device, and the portion coming out of the floor plate can be wound.

  According to the second aspect of the present invention, there is a possibility that the inner wall plate moved by the extruding or pulling-out device has its left and right wall plates extending from the opening surface for discharging the cargo and extending rearward. The pull-out device is a take-up device, and the part coming out of the floorboard can be taken up without disturbing it.

  The gist of the present invention described in claim 3 is that the left and right wall plates of the inner wall plate are wound around the inside and outside of the outer fixed wall plate as endless bodies, and the drawer device is a rotary feeding device.

  According to this invention of Claim 3, like the said Claim 2, the part which protrudes from the floor board of a right-and-left wall board does not become obstructive by winding up.

  According to a fourth aspect of the present invention, there is provided a partition wall which is located between the left and right wall plates, and is provided at a loading place of a load surrounded by the floor plates and the wall plates, and is narrower than the floor plates, The gist of the invention is that a flexible floor board, whose end is locked to the lower end of the partition wall, is laid on the floor board, and the load is discharged by moving the partition wall and the flexible floor board.

  According to the fourth aspect of the present invention, unlike the first aspect, by providing a flexible floor plate, the friction between the floor plate and the load is cut. Although the friction between the left and right wall plates and the load remains, the load can be pushed sufficiently by cutting the friction between the floor plate and the load. Further, since the entire load moves together with the flexible floor board, even if the end is pushed by the end wall board, it rises upward and does not spill from the left and right wall boards.

  Furthermore, by pressing the end of the load with this end wall plate, the end wall plate can be reliably pressed without fear of collapse of the load. The reason why the flexible floor board is narrower than that of the floor board is that the flexible floor board is dedicated to the role of cutting friction, and the total load of the load is not given to the flexible floor board. As a result, a strong tensile force is hardly applied to the flexible floor board, and the flexible floor board is not likely to be deformed.

  As described above, the unloading apparatus according to the present invention is designed to efficiently load the load unloading at a stroke without much load, mainly for cutting the friction of the load when pushing the load. Can be discharged, and there is no worry about collapse of cargo.

  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 an unloading apparatus of the present invention, and FIG. 2 is a side view of the same, which is a case of unloading from a truck bed.

  In the figure, reference numeral 21 denotes a truck bed which is a loading place of the load, and is surrounded by a floor plate and a wall plate composed of a floor plate 21a, a front end wall plate 21d, a left wall plate 21b, and a right wall plate 21c, and three of four sides. Is surrounded by a wall plate, and the other one is used as an opening 22 for discharging the load.

  Then, scrap iron, other chip objects, granular materials such as gravel, and the like are conveyed as a load A.

  In addition, a door may be provided on the opening surface 22 for discharging the load, and a roof plate or a hood may be installed on the wall plate.

  The present invention further includes an inner wall plate 23 that surrounds the front end wall plate 23a, the left wall plate 23b, and the right wall plate 23c inside the front end wall plate 21d, the left wall plate 21b, and the right wall plate 21c. The inner wall plate 23 is moved by an extruding or pulling-out device, and the load is pushed to the opening 22 for discharging the load behind and discharged from the floor plate 21a.

  The front end wall plate 23a is preferably a strong member made of steel or the like, and the left wall plate 23b and the right wall plate 23c may be a steel plate or the like. It is formed with a roll material or sheet material made of metal such as steel or synthetic resin. The height widths of the front end wall plate 23a, the left wall plate 23b, and the right wall plate 23c do not have to be the same as or similar to those of the front end wall plate 21d, the left wall plate 21b, and the right wall plate 21c. It may be smaller.

  In the present embodiment, as the pushing or pulling device for moving the inner wall plate 23, the flexible winding device 24 for the left wall plate 23b and the right wall plate 23c is provided in the vicinity of the opening surface 22 for discharging the load. I made it.

  The winding device 24 performs winding by, for example, a roll, and although not shown, the drive is attached to a motor or a handle mounting portion provided on the central axis of the roll as described in Patent Document 2. A hand-turned type that is rotated by a handle may be used.

  Further, as a mechanism for pulling out the left wall plate 23b and the right wall plate 23c wound around the winding device 24, it is applied to this by a mechanism for moving the front end wall plate 23a to the front side. By means of towing or moving with a jack.

  When the left wall plate 23b and the right wall plate 23c are made inflexible, the entire inner wall plate 23 may be moved by means of pulling by the chain or wire or moving means using a jack. In this case, the left wall plate 23b and the right wall plate 23c protrude greatly toward the opening surface 22 for discharging the load.

  In this manner, in the state before loading the load A on the truck bed 21, the front wall 23a is brought close to the front wall 21d, the left wall 23b is placed on the left wall 21b, and the right wall. The right wall plate 23c is placed along the plate 21c, and the load A is mounted on the inner wall plate 23 that surrounds the front wall plate 23a, the left wall plate 23b, and the right wall plate 23c.

  To unload after transportation, if the left wall plate 23b and the right wall plate 23c are wound up by the winding device 24, the front end wall plate 23a moves rearward, and the entire load A moves rearward at the same time. Are sequentially discharged from the opening 22 for discharging the load.

  FIG. 3 shows a second embodiment of the present invention. Among the inner wall plates 23, the left wall plate 23b and the right wall plate 23c are flexible in the same manner as the first embodiment, but this is the same as the first embodiment. Was used as an endless body, and the inside and outside of the left wall plate 21b and the right wall plate 21c, which are outer fixed wall plates, were wound.

  The rotary delivery device 25 is configured with a guide roller, and a certain one of them is used as a driving roller to form a longitudinal belt conveyor type.

  Since the usage is the same as in the first embodiment, the description thereof is omitted. However, in order to return the front end wall plate 23a to the front position after discharging the load A, the rotary feeding device 25 is reversed, the left wall plate 23b, The right wall plate 23c may be moved in the reverse direction.

  In addition, although illustration is abbreviate | omitted, the said winding device 24 can also be installed as a separate body instead of providing this in the loading platform 21 of a truck.

  FIG. 4 shows a third embodiment of the brother of the present invention, which is a truck bed as a loading place of a load, and includes a floor plate 21a, a front end wall plate 21d, a left wall plate 21b, and a right wall plate 21c. It is the same as the first and second embodiments in that it is surrounded by a wall plate, three of the four sides are surrounded by a wall plate, and the other one is an opening surface 22 for discharging the cargo. A partition wall 26 that moves between the plate 21b and the right wall plate 21c is provided. The partition wall 26 is narrower than the floor plate 21a on the floor plate 21a, and an end can be locked to the lower end of the partition wall 26. A flexible floor plate 27 was laid.

  The flexible floor plate 27 is also formed of a roll material or a sheet material made of steel or synthetic resin, and a winding device 28 at the end thereof is provided on the opening surface 22 for discharging the load. The winding device 28 can be installed as a separate body instead of being provided on the truck bed 21.

  In this embodiment, the flexible floor board 27 is located in the center of the floor board 21a, and the floor board 21a is exposed from the left and right.

  FIG. 5 shows an application example of the younger brother 3 embodiment as the fourth embodiment. The flexible floor plate 27 is doubled so as to be positioned on the left and right sides of the floor plate 21a, and further rotated in place of the winding device 28. The delivery device 29 is provided, and the flexible floor plate 27 is formed as an endless body.

  The usage is the same as in the first and second embodiments, and in the state before loading the load A on the truck bed 21, the partition wall 26 is brought close to the front end wall plate 21d, so that the flexible floor plate 27 is used. Is loaded for a long time on the floor plate 21a.

  After unloading, in order to unload, the flexible floor plate 27 is pulled by the winding device 28 or the rotary delivery device 29, so that the entire load A moves together with the partition wall 26, and the opening surface 22 for discharging the load sequentially. Discharged from.

  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 conveyor or the like on a ship deck or on a shore yard.

It is a perspective view which shows 1st Embodiment of the unloading apparatus of this invention. It is a vertical side view which shows 1st Embodiment of the unloading apparatus of this invention. It is a top view which shows 2nd Embodiment of the unloading apparatus of this invention. It is a perspective view which shows 3rd Embodiment of the unloading apparatus of this invention. It is a perspective view which shows 4th Embodiment of the unloading apparatus of this invention. It is a vertical side view of the 1st process which shows the usage example of the unloading apparatus of patent 3065568. It is a vertical side view of the 2nd process which shows the usage example of the unloading apparatus of patent 30625568. It is a vertical side view of the 3rd process which shows the usage example of the unloading apparatus of patent 30625568. It is a vertical side view of the 4th process which shows the usage example of the unloading apparatus of patent 30625568. It is a vertical side view of the 5th process which shows the usage example of the unloading apparatus of patent 30625568. It is a vertical side view of the 6th process which shows the example of use of the unloading apparatus of patent 30625568. It is a vertical side view of the 7th process which shows the usage example of the unloading apparatus of patent 30625568. It is a vertical side view of the 8th process which shows the usage example of the unloading apparatus of the patent 30625568. It is a vertical side view of the 9th process which shows the usage example of the unloading apparatus of the patent 30625568. It is the vertical side view which showed the Example with which the truck which showed the content of patent document 2 was mounted | worn (state which the unloading door closed). It is the vertical side view which showed the Example with which the truck which shows the content of patent document 2 was mounted | worn (the state where the unloading door opened).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Winding device 2 ... Sheet | seat 2a ... End part 3 ... Door 4 ... Loading platform surface 5 ... Hook part 6 ... Stretching member 7 ... Handle member 8 ... Loading 9 ... Cam 11 ... Truck 12 ... Loading platform 13 ... Cabin 14 ... Bottom plate 15 ... Slide plate 16 ... Cylinder 17 ... Bag side plate 18 ... Bulk plate 18a ... Bottom base 19 ... Set pin 20 ... Bit 21a ... Floor plate 21 ... Truck bed 21b ... Left wall plate 21c ... Right wall plate 21d ... Front end wall plate 22 ... Opening surface 23 for discharge of cargo 23 ... Inner wall plate 23a ... Front end wall plate 23b ... Left wall plate 23c ... Right wall plate 24 ... Winding device 25 ... Rotating delivery device 26 ... Partition wall 27 ... Flexible floor plate 28 ... Winding device 29 ... Rotary feeding device A ... Loading

Claims (4)

  At the place where the load is surrounded by the floor plate and wall plate, three of the four sides are surrounded by the wall plate, the other one is used as the load discharge opening surface, and the front end wall plate and the left and right wall plates are further inside the wall plate. An unloading device characterized in that an inner wall plate surrounding three sides is disposed, and the inner wall plate is moved by an extrusion or pull-out device to push the load backward and discharge it from the floor plate.   2. The unloading device according to claim 1, wherein, of the inner wall plates, left and right wall plates are made flexible, the drawing device is a winding device, and a portion coming out of the floor plate can be wound.   The unloading device according to claim 1, wherein, of the inner wall plates, the left and right wall plates are endlessly wound around the inside and outside of the outer fixed wall plate, and the drawer device is a rotary feeding device.   A partition wall that moves between the left and right wall plates is provided at the place where the load surrounded by the floor plate and the wall plate is placed. The partition wall is narrower than the floor plate and has an end at the lower end of the partition wall. An unloading apparatus characterized in that a flexible floor board to be stopped is laid on the floor board, and the load is discharged by moving the partition wall and the flexible floor board.

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