JP2006206145A - Cargo handling apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cargo handling apparatus wherein a floor plate movable back and forth by a cylinder is disposed, and a movable bulkhead not moved and allowing only the floor plate to move in locking and moved together with the floor in moving is provided on the floor plate as the cargo handling apparatus, which is provided in a box body storing the cargo to unload the cargo, and wherein the arrival of the movable bulkhead near a discharge port and the finishing of unloading can be easily confirmed to shorten the discharge time even if the discharging state of the cargo is not observed. <P>SOLUTION: The cargo handling apparatus is provided with a limit switch 35 as a detection means at the near position of a discharge port 11 of the box body 10 in the movable bulkhead 12 or the case body 10, and a buzzer or a lamp as an annunciator actuated by a detection output of the limit switch 35 at an outside side part or an appropriate position of the box body 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention is provided in a truck bed used for transporting a load, a container mounted on a trailer and used for transporting a load, etc., and unloading the loaded load is mechanized and loaded without dumping up. The present invention relates to a cargo handling device capable of unloading a rare load.

  Unloading without dumping up makes it possible to carry out large-scale transport using large trailers, which has been difficult until now, leading to cost reduction.

  In addition, because it does not dump up, it is possible to unload safely even in a warehouse with a low ceiling or outdoors, and since it is unloaded in order from the front without dumping up, divided storage is also possible by means of loading It becomes possible.

In this way, a cargo handling device provided on a truck bed or container can perform unloading without dumping up, and can also unload the loaded load manually, allowing manual loading. As a cargo handling apparatus that can cope with aging of workers and improvement of work efficiency by eliminating the heavy work of unloading, there is one of the following patent documents.
JP 2003-160236 (container with cargo handling device)

  As shown in FIGS. 7 and 8, reference numeral 10 in the figure denotes a box which is a container outer shell, which is composed of a front end plate 10 a, a side plate 10 b and the like. It is said. In addition, the discharge port 11 has an openable / closable door 14 with double doors.

  A movable partition 12 that moves in the front-rear direction as a load discharging device or a loading device is provided in the box 10. Further, a floor plate (slide plate) 13 that can be moved back and forth is laid under the movable partition 12.

  The movable partition wall 12 is made of steel, and the box body 10 is a rectangular parallelepiped, and is arranged in a direction parallel to the discharge port 11. In addition, the movable partition 12 has a partition plate 12b erected on a support plate 12a, and the lower portion of the partition plate 12b has an inclined surface 26 with the lower portion projecting forward. The floor plate 13 is also made of steel or stainless steel and may be relatively thin.

  The movable partition 12 is placed on the floor plate 13 only by contacting the support plate 12a. On the other hand, a cylinder 15 that reciprocates between the floor plate 13 and the box 10 is provided. Be able to move back and forth.

  Further, as fixing means for fixing the movable partition wall 12 to the box body 10, locking pins 17 a as locking projections are provided at appropriate intervals on the inner surface of the side plate 10 b to form the rack portion 17. Is provided with a cam 18 which is locked in only one direction on the locking pin 17a of the rack portion 17. The cam 18 is a pendulum type or seesaw type lock bar.

  The cam 18 is rotatable by a shaft, and the inclination direction thereof can reverse the locking direction of the rack portion 17 with respect to the locking pin 17a. That is, a claw that is locked in only one direction on the locking pin 17a of the rack portion 17 is provided at the end portion.

  Next, the usage will be described. 9 to 12 show a case where the container of the present invention is unloaded in a state where the container is loaded on the trailer truck 27, and the discharge port 11 is opened assuming that there is a load A in the box 10 which is a container. Further, the movable partition 12 is located near the front end plate 10a, and the cam 18 engages with the stop pin 17a of the rack portion 17 to prevent the movement toward the front end plate.

  If the cylinder 15 is extended, the floor plate 13 moves from the front end plate side toward the rear end, and the load A and the movable partition 12 of the floor plate 13 also move accordingly. In this state, the relationship between the rack portion 17 and the cam 18 is such that the tip claw moves away from the continuous concave portion between the retaining pins 17a of the rack portion 17 and moves to the adjacent continuous concave portion along the rack portion 17 while sequentially shifting. Since it moves, the movable partition 12 is not locked to the box 10.

  Further, the movable partition 12 moves together with the floor plate 13, and the load A can be reliably sent.

  As a result of the sliding of the floor board 13, the rear end of the floor board 13 goes out from the discharge port 11 with the cargo loaded thereon. (See Figure 10)

  Next, when the cylinder 15 is reduced and the floor plate 13 is pulled to the front end plate as it is, the claw of the cam 18 is locked and fixed to the stop pin 17 a of the rack portion 17, and the movable partition 12 is fixed to the box 10. Since the front end is fixed to the movable partition wall 12, the load A does not move as it is, and the floor plate 13 disappears outside the discharge port 11 and falls.

  If the load A is dropped, the movable partition 12 is locked to the box body 10 side, the cylinder 15 is extended again, and the floor board 13 is pushed backward. Thereafter, (1) the floor board 13 is pushed out, (2 ) Repeat the procedure of locking the movable partition wall 12, (3) pulling in the floor plate 13, (4) dropping the load, and (5) releasing the lock of the floor plate 13, and drop all the loads A out of the box 10. .

  In this way, the movable partition 12 moves to the vicinity of the rear outlet 11 of the box 10 that is a container. (See Figure 11)

  In order to prepare for loading again from the state where all the loading A is unloaded, the movable partition 12 is moved to the front part of the floor plate 13 and the front end plate side.

  By the engagement of the rack portion 17 and the cam 18, only the movement toward the front end plate side of the cam 18 is allowed and the backward movement is prevented.

  When the cylinder 15 is extended, the floor plate 13 moves from the front end plate toward the rear end, and the claw of the cam 18 is fixed by being locked to the stop pin 17a of the rack portion 17, and the movable partition 12 is located on the side of the box body 10. The floor plate 13 is moved only.

  Next, when the cylinder 15 is reduced and the floor plate 13 is pulled to the front end plate as it is, the relationship between the rack portion 17 and the cam 18 in this state is that the claw is detached from the stop pin 17a and moves to the adjacent continuous recess. Since the movable partition 12 is not locked to the box 10 side because it moves along the rack portion 17 while being sequentially displaced, the movable partition 12 on the floor plate 13 also moves accordingly.

  Thereafter, the procedure of (1) pushing out the floor plate 13, (2) locking the movable partition wall 12, (3) pulling in the floor plate 13, and (4) releasing the locking of the floor plate 13 is repeated to move the movable partition wall 12 to the front. The space inside the box 10 is made suitable for loading.

  As described above, the movable partition 12 is unloaded, and sequentially moves in the box 10 toward the rear discharge port 11.

  This movement of the movable bulkhead 12 cannot be observed from the outside and can be roughly estimated by the amount of the load A to be discharged. However, in order to be accurate, it is necessary to look into the discharge state from the discharge port 11 and confirm it. there were.

  It is hard to keep track of the emission situation.

  An object of the present invention is to eliminate the disadvantages of the conventional example described above, and arrange a floor plate that can be moved back and forth by a cylinder as a cargo handling device that is provided in a box that accommodates cargo with a rear end serving as a discharge port and discharges the load. On this floor board, only the floor board moves when locked, and in the cargo handling device provided with the movable partition wall that moves with the floor board at the time of movement, the movable partition wall reaches the vicinity of the discharge port even if the discharge state of the load is not seen, An object of the present invention is to provide a cargo handling apparatus that can easily confirm that the unloading operation has been completed and that also shortens the discharge time.

  In order to achieve the above-mentioned object, the present invention firstly arranges a floor plate that can be moved back and forth by a cylinder as a cargo handling device that discharges a load provided in a box that accommodates a load with a rear end as a discharge port, On this floor plate, in the cargo handling apparatus provided with a movable partition wall that moves only when locked and moves with the floor plate at the time of movement, the movable partition wall or the box body is provided with detection means for the position near the outlet of the box body, The alarm that operates according to the detection output of the detection means is provided. Second, the detection means is a limit switch and is provided above the movable partition wall. Third, the alarm is a lamp, The gist is to provide the outer side portion.

  According to the first aspect of the present invention, when the movable partition wall reaches the vicinity of the discharge port in the box, the detection means detects this and the alarm is activated, thereby confirming that the discharge operation of the load is completed. I can know.

  According to the second aspect of the present invention, in addition to the above action, the limit switch as the detection means is provided at the upper part of the movable partition wall so that it is positioned above the load loaded in the box body. There is no risk of being buried and causing malfunction.

  According to the third aspect of the present invention, the alarm is provided on the outer side portion of the box, and is easy to see when using a lamp or the like.

  As described above, the loading / unloading device of the present invention can easily confirm that the movable partition wall has reached the vicinity of the discharge port and the unloading operation has been completed without looking at the discharge state of the load, thereby shortening the discharge time. Is also connected.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal side view showing an embodiment of a cargo handling device of the present invention, FIG. 2 is a rear view of the same, and the same components as those in FIGS. is there.

  In the figure, reference numeral 10 denotes a box which is a container outer shell with a discharge port 11 at the rear end. A movable partition 12 which moves in the front-rear direction as a load discharging device is provided in the box 10, and is further laid below the movable partition 12. A floor plate (slide plate) 13 that can move back and forth was laid.

  The movable partition 12 and the floor plate (slide plate) 13 are as described in the conventional example. The movable partition 12 is made of steel, and the box 10 is a rectangular parallelepiped, and is arranged in a direction parallel to the discharge port 11. The

  In addition, the movable partition wall 12 has an inclined surface 12c with the lower portion projecting further forward on the side facing the discharge port 11. The floor plate 13 is also made of steel or stainless steel and may be relatively thin.

  The movable partition 12 is placed with the floor plate 13 only in contact with the bottom surface. On the other hand, a reciprocating cylinder 15 (see FIG. 3) is provided between the floor plate 13 and the box 10.

  As the hydraulic control mechanism for driving the cylinder, hydraulic control mechanisms such as a pump, a hydraulic oil tank, a pump driving prime mover 23, a fuel tank 25, and the like are provided at the front of the box 10.

  The movable partition 12 has a base 32 having a width in the front-rear direction. As shown in FIGS. 3 to 6, as a means for locking and releasing the movable partition 12 from the box 10 on the base 32, a first part is provided. The rotating body (guide roller) 1a and the second rotating body 1b are provided at the lower part of the movable partition 12 so as to be spaced apart from each other in the wall width direction. Further, the rotating body 1a and the second rotating body 1b are arranged close to the first rotating body 1a. In the vicinity of the second rotating body 1b, a fourth rotating body 1d is provided, one end is fixed to the rear end side of the box 10, and the other end is fixed to the front end side of the first chain 2a. Is stretched over the first rotating body 1a and the fourth rotating body 1d. Further, the middle of the second chain 2b that fixes one end to the front end side of the box 10 and the other end to the rear end side is stretched over the second rotating body 1b and the third rotating body 1c. Set up.

  In this way, the first chain 2a and the second chain 2b are relatively close to each other between the first rotating body 1a, the third rotating body 1c, the second rotating body 1b, and the fourth rotating body 1d. Thus, they are parallel or substantially parallel (may be somewhat open to each other).

  Between the first chain 2a and the second chain 2b, a sprocket 3a in which convex portions 4 for fitting one of the continuous rings of the chain are provided at appropriate intervals is provided. In order to ensure the engagement between the first chain 2a and the second chain 2b and the sprocket 3a, the guide has curved surfaces that press the first chain 2a and the second chain 2b against the sprocket 3a. 22 was provided. The guide 22 has a corrugated curved surface so as to be bonded to the first chain 2a and the second chain 2b and to prevent the guide 22 from moving.

  Further, although not shown in the drawings, a gear and a locking cam that can be engaged with the gear are provided on the rotating shaft 5 of the sprocket 3a as a rotation locking mechanism. The locking cam has a claw that allows reverse rotation (either rotation in the clockwise direction or rotation in the counterclockwise direction) even when engaged with the recess of the gear. These pawls prevent rotation opposite to each other, and in the case of allowing any rotation, the pawls move away from the recesses.

  The movable partition 12 has a trapezoidal shape in which the width diameter of the movable partition 12 is reduced upward by tilting the joint surface of the load. The inclined surface 12c projecting downward from the front is formed by a face plate stretched on the frame.

  The movable partition 12 has a vertical surface on the rear side opposite to the inclined surface 12c, and further, a vertical surface 12d positioned on the inclined surface 12c is formed at the uppermost portion.

  A limit switch 35 is provided as a detection means in the vicinity of the discharge port 11 of the box 10 on the upper part, preferably the uppermost part of the movable partition wall 12, while the limit switch 35 is provided in the vicinity of the discharge port 11 in the box 10. A protrusion 36 that is in contact with the operator is installed. In order to ensure the operation of the limit switch 35, the protrusion 36 has a horizontally long bar shape or box shape.

  In addition, a lamp is provided as an alarm 37 that is activated by the detection output of the limit switch 35 by the detection means on the outer side of the box 10.

  As the alarm device 37, a buzzer can be provided instead of the lamp, and both the lamp and the buzzer can be provided. In the case of a buzzer, it is not limited to the outer side portion of the box body 10, and the lamp and the buzzer can also be provided at a place other than the outer side portion of the box body 10, such as a driver's seat.

  Next, the usage will be described. In the case of unloading in a state where the container of the present invention is loaded on a trailer truck, the rear end port 11 is opened assuming that there is a load in the box 10 which is a container. The movable partition 12 is located on the front side of the box 10.

  When the cylinder 15 is extended, the floor plate 13 moves from the front side to the rear end in the box body 10, and the load on the floor plate 13 and the movable partition 12 move accordingly. In this state, the first chains 2a, 20a are wound around the first rotating bodies 1a, 9a and the fourth rotating bodies 1d, 9d, so that the first rotating bodies 1a, 9a and the fourth rotating bodies 1d and 9d are stretched along the width direction of the movable partition 12, and similarly, the second chains 2b and 20b are connected to the second rotating bodies 1b and 9b and the third rotating body. Since the body 1c, 9c is wound on the way, the movable partition 12 is overlaid by the first chain 2a, 20a and the second chain 2b, 20b, and the first rotating body 1a, 9a, second The left and right sides of the movable partition 12 are pulled in front and rear of the box 10 with the rotating bodies 1b and 9b, the third rotating bodies 1c and 9c, and the fourth rotating bodies 1d and 9d as fulcrums. Maintains a stable state by preventing turning movement Door can be.

  When the movable partition 12 moves together with the floor plate 13, the floor plate 13 and the movable partition 12 are fixed to each other. In that case, the gear (not shown) is prevented from rotating by the locking cam, which stops the movement of the first chain 20a and the second chain 20b via the sprocket 3b. It is fixed to the floor board 13.

  Then, the first rotating body 1a, the second rotating body 1b, the third rotating body 1c, and the fourth rotating body 1d slide on the first chain 2a and the second chain 2b, and the first chain 2a as it is. The movable partition wall 12 moves in a state of being struck by the second chain 2b. The gear rotates counterclockwise by the movement of the first chain 2a and the second chain 2b, and even if the claw of the locking cam is engaged with the recess of the gear, the gear moves away from the recess. Allow rotation of

  Next, when the cylinder 15 is reduced and the floor board 13 moves in the opposite direction, the mutual fixation of the floor board 13 and the movable partition wall 12 is automatically released, and the gear is rotated clockwise by the locking cam. This stops the movement of the first chain 2a and the second chain 2b via the sprocket 3a. As a reaction, the movable partition 12 is fixed to the box 10, and the front end of the load is the movable partition. Since it is being fixed to 12, it does not move as it is, and even if only the floor board 13 moves, it returns.

  In this way, the procedure of (1) rearward movement of the floor board 13 and movement of the movable partition 12 and the load accompanying it, (2) locking of the movable partition 12 and (3) forward movement of only the floor board 13 is repeated. Then, the movable partition 12 and all the loads are sequentially moved to the rear side of the floor plate 13, and the loads are dropped from the rear end to the outside of the box body 10.

  When the movable partition wall 12 reaches the vicinity of the discharge port 11 in the box 10, the limit switch 35 contacts the projection 36 and the limit switch 35 is activated. Lights up or a buzzer sounds.

  Thus, the operator can know that the discharge operation of the load has been completed without looking at the discharge state of the load and without going to the discharge port 11 side.

  In order to prepare for unloading again from the state where all of the load is unloaded, or to perform loading, it is necessary to move the movable partition wall 12 to the front side of the floor plate 13.

In this case, the claw of the locking cam is put in the recess of the gear to prevent the gear from rotating counterclockwise and allow clockwise rotation.

  (1) Forward movement of the floor board 13 and accompanying movement of the movable partition wall 12 (also movement when loading a load), (2) Locking of the movable partition wall 12, and (3) Rear movement of only the floor board 13 The above procedure is repeated to move the movable partition 12 to the front side and prepare for the next unloading.

  In addition to the embodiment described above, the limit switch 35 may be provided in the vicinity of the discharge port 11 in the box body 10, and the movable partition 12 may be provided with a protrusion or the like that operates the limit switch 35.

  It is also possible to provide a limit switch as a position detecting means in addition to the limit switch 35 as a position detecting means in the vicinity of the discharge port 11 and to make a forecast at a predetermined position before the stop position of the movable partition wall 12. It is.

It is a vertical side view which shows one Embodiment of the material handling apparatus of this invention. It is a rear view which shows one Embodiment of the cargo handling apparatus of this invention. It is a vertical side view which shows the latching and releasing means to the box of the movable partition of the cargo handling apparatus of this invention. It is a vertical front view which shows the latching and releasing means to the box of the movable partition of the cargo handling apparatus of this invention. It is a cross-sectional top view which shows the latching and releasing means to the box of the movable partition of the cargo handling apparatus of this invention. It is the whole side view which shows the latching and releasing means to the box of the movable partition of the cargo handling apparatus of this invention. It is a perspective view which shows a prior art example. It is a vertical side view which shows a prior art example. It is a vertical side view of the 1st process which shows the use condition of a prior art example. It is a vertical side view of the 2nd process which shows the use condition of a prior art example. It is a vertical side view of the 3rd process which shows the use condition of a prior art example. It is a vertical side view of the 4th process which shows the use condition of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a ... 1st rotary body (guide roller) 1b ... 2nd rotary body
DESCRIPTION OF SYMBOLS 1c ... 3rd rotary body 1d ... 4th rotary body 2a ... 1st chain 2b ... 2nd chain
3a, 3b ... sprocket 4 ... convex portion 5 ... rotating shaft 9a ... first rotating body 9b ... second rotating body 9c ... third rotating body 9d ... fourth rotating body 10 ... box 10a ... front end plate 10b ... Side plate 10c ... Roof material 11 ... Discharge port 12 ... Movable partition wall 12a ... Support plate 12b ... Partition plate 12c ... Inclined surface 12d ... Vertical surface 13 ... Floor plate 14 ... Door 15 ... Cylinder 17 ... Rack part 17a ... Set pin 18 ... Cam 20a ... first chain 20b ... second chain 22 ... guide 23 ... prime mover for pump drive 25 ... fuel tank 26 ... inclined surface 27 ... trailer truck 32 ... base 35 ... limit switch 36 ... projection 37 ... alarm

Claims (3)

  A floorboard that can be moved back and forth by a cylinder is arranged as a cargo handling device that discharges the load by installing it in the box that accommodates the cargo with the rear end as a discharge port, and only the floorboard moves on this floorboard when locked, In a cargo handling apparatus provided with a movable partition wall that moves together with the floor plate during movement, a detection means for the position near the discharge port of the box body is provided in the movable partition wall or the box body, and an alarm that operates according to the detection output of the detection means is provided. A cargo handling device characterized by that.   The cargo handling apparatus according to claim 1, wherein the detection means is a limit switch and is provided above the movable partition wall.   The cargo handling device according to claim 1 or 2, wherein the alarm is a lamp and is provided on an outer side portion of the box.

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