JPH0958464A - Carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To absorb the difference in speed even if there actually exists the difference in speed between dollies when carried articles are carried in a state that a pallet is bridged between a plurality of the dollies. SOLUTION: This invention is concerned with the device for carrying a pallet 9 bridged between two dollies 4, which is placed over two lines of tracks in such a way that it can travel. The device is made up of lifting cylinders 11 provided for the front and rear of each dolly with their distance spaced in the longitudinal direction, cylindrical support members provided for the tip end of the rod 15 of each lifting cylinder 11, a skid plate 19 interposed between the upper parts of the front and rear support members 16, sliding plates 20 provided for the back faces of the skid plate 19 at its front and rear parts, and each supporting top 23 which is provided over the dollies 4, can go in between each sliding plate 20 and the supper surface 12 of each dolly, and is bonded with each sliding plate 24 at its surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pallet supported by a plurality of trolleys and a carrier device for carrying an object to be conveyed such as a pallet to be conveyed.

[0002]

2. Description of the Related Art FIGS. 4 and 5 show an example of a carrying device for carrying a carried object on a pallet bridged between two carriages that are moved in parallel. FIG. 4 shows the plane of the carrier device, and FIG. 5 shows the view taken along the line VV.

A track 1 laid in parallel in two rows in a storage facility
A truck 4 is mounted on the rail 2 via wheels 3. Each carriage 4 is provided with a cylinder 5 as an ascending / descending means with a front-rear space therebetween, and an interposing plate skid plate 7 is attached to an upper portion of each rod 6 thereof.

The conveyance of the conveyed goods by this conveying device is performed as follows. First, the pallet 9 on which the goods 8 are placed
Is carried on orbit 1. The pallet 9 has legs 9a, and the legs 9a are carried so as to be installed on the floor surface inside the track 1. Next, each carriage 4 enters under the end 9b of the pallet 9 and is stopped at a predetermined position. Next, the cylinders 5 of the carriages 4 are actuated and the skid frates 7 are raised by a predetermined amount. As the skid plate 7 rises, the skid plate 7 contacts the lower side of the end portion 9a of the pallet 9, and the pallet 9 is lifted.
As indicated by the chain double-dashed line in, the leg 9a is in a state of floating from the floor surface. The pallet 9 is transported by moving the carriage 5 in this state.

[0005]

However, the two rows of trajectories 2
When the pallet 9 and the load 8 on the pallet 9 have a large width in the traveling direction of the trolley 5, even if the two trolleys 5 are run at the same speed, there is a slight difference in speed. May occur.

When such a speed deviation occurs, the space between the supported surface of the end portion 9b of the pallet 9 and the skid plate 8 supporting the end portion (the portions indicated by A, B, C and D in FIG. 4). ) Generates a large horizontal frictional force, which is caused by the trolley 5
It hinders the smooth running of the car. Further, an unreasonable force will be applied to the wheels 3 and the rail 1 of the carriage 5.

Further, when traveling with the pallet 9 lifted by the cylinder 6, if there is an abnormality in the cylinder 6 itself or the hydraulic system, the pallet 9 lowers and comes into contact with the road surface.

[0008]

According to a first aspect of the present invention to solve the above-mentioned problems, there is provided a transporting device for transporting an object to be transported while bridging and supporting a plurality of trolleys. And an elevating means for elevating and lowering the supporting member, and an interposing plate arranged on the supporting member of the elevating means,
A sliding member surface provided on the back surface of the interposing plate, and a support piece provided on the trolley, capable of advancing and retracting below the sliding surface, and having a sliding surface on the surface. Characterize.

In this carrying device, the dolly is moved at the same speed, so that the object to be carried which is supported across the plurality of dollies is carried. Even if there is a deviation in the traveling speed of the plurality of carriages, the deviation is absorbed by the sliding surface of the interposing plate and the sliding surface of the support piece.

According to a second aspect of the present invention, there is provided a transporting device for transporting a pallet bridging over two carriages that are respectively provided on two tracks so that they can travel. Elevating means provided on the trolley to elevate and lower a supporting member, an interposing plate placed on the supporting member of the elevating means and supporting the pallet, and a sliding surface provided on the back surface of the interposing plate, And a support piece that is provided on the trolley, can move forward and backward to the lower side of the sliding surface, and has a surface serving as a sliding surface.

According to this carrying device, the pallet is lifted by the interposing plate by first raising the elevating member by the operation of the elevating means of the carriage to raise the interposing plate. When the interposing plate is lifted, the supporting piece enters below the sliding surface below the interposing plate. After that, the interposing plate is lowered together with the supporting member by the operation of the elevating means, but the interposing plate and the pallet are supported by the trolley via the supporting piece by placing the sliding surface on the sliding surface on the supporting piece. become. Therefore, even if there is a deviation in the traveling speed of the two carriages, the deviation is absorbed by the sliding surface of the interposing plate and the sliding surface of the support piece.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of a carrier vehicle according to the present invention will be described with reference to the drawings. FIG. 1 is a partial side sectional view of a carrying device according to an embodiment, FIG. 2 is a partial side sectional view showing a different state, and FIG. 3 is a side view of the entire device.

Two rows of tracks 1 formed by a pair of rails 2 are laid on a floor surface of a storage facility such as a warehouse or a hold, and trucks are respectively mounted on the rails 2 of each track 1 via wheels 3. 4 can be loaded. One wheel 3 of the front and rear wheels 3 is a driving wheel, and a driving force is given by a motor installed in the carriage 4.

An elevating cylinder 11 is provided on the upper part of the dolly 4 so as to face the front and rear with a space therebetween. Each lifting cylinder 11 has a recess 13 formed on the upper surface 12 of the carriage 4.
It is provided within. As shown in FIG. 1, a mounting bracket 14 is fixed to the bottom surface of the recess 13, and the end of the elevating cylinder 11 is pivotally attached to the mounting bracket 14. The rod 15 of the lifting cylinder 11 is covered with a cylindrical support member 16, and the tip of the rod 15 is connected to the inner top surface of the support member 16. Further, around the cylindrical support member 16, a guide roller 17 for guiding the vertical movement of the support member 16 is arranged. Incidentally, trolley 4
A hydraulic accumulator 18 for holding the hydraulic pressure for lifting drive is installed in the lifting cylinder 11.

A skid plate 19 is provided as an interposing plate between the upper surfaces of the support members 16 of the front and rear lifting cylinders 11. Sliding plates 20 are attached to the back surfaces of the front and rear ends of the skid plate 19. The sliding plate 20 is formed of a material having high rigidity and a small friction coefficient.

On the other hand, a hydraulic cylinder 21 is installed on the carriage 4 in front of or behind the recess 13. Each hydraulic cylinder 21 is installed in such a posture that its rod 22 can expand and contract toward the end of the skid plate 19, and a support piece 23 is attached to the end of each rod 22. A slide plate 24 is fixed on each support piece 23. Like the sliding plate 20, the sliding plate 24 is also made of a material having high rigidity and a small friction coefficient.

Next, the work of carrying the goods by the carrying device having the above-mentioned structure will be described. The pallet 9 on which the goods 9 are placed is loaded and placed so that both legs 9a of the pallet 9 come to the inside of each track 2 (see FIG. 5).

Next, the carriage 4 on each track 2 is moved to a position where the skid plate 19 is below the end 9b of the pallet 9. Then, the elevating cylinder 11 is operated, and the support member 16 and the skid plate 19 are moved up. The skid plate 19 contacts the lower surface of the end 9b of the pallet 9 and further lifts the pallet 9 upward by a predetermined stroke. The lifted state is shown in FIG. In this state, the legs 9a of the pallet 9 are lifted from the floor surface.

Next, front and rear hydraulic cylinders 21 on the carriage 4
Work together, and the extension of the rod 22 causes the support piece 2
3 enters under the sliding plate 20 on the lower surface of the pallet end.
This state is shown by a chain double-dashed line in FIG.

Next, the elevating cylinder 11 is operated in the opposite direction to gradually lower the skid plate 19. When the skid plate 19 is lowered, the sliding plate 20 on the lower surface of the end portion of the skid plate 19 is lowered.
Is placed on the support member 24 on the support piece 23. That is, the pallet 9 on which the goods 8 are placed is in a state of being supported by the support piece 23. Even in this state, the legs 9 of the pallet 9
a is in a state of floating with a slight gap from the floor surface. Therefore, when the trucks 4 on both tracks 2 are driven to travel, the pallet 9 is transported while being supported by the trucks 4.

When the two trolleys 4 travel, a deviation in traveling speed may occur due to track resistance and environmental conditions. However, the weight of the goods 8 and the pallet 9 is different from that of the sliding plate 20 on the lower surface of the end of the pallet 9. Since it is supported via the slide plate 24 of the support piece 23 on the carriage 4 and these are made of a material that easily slides on each other, the horizontal force is absorbed by the sliding at this portion. Therefore, no unreasonable force acts on the wheels 3 and the tracks 2 of both carriages 4, and the carriage 4 is moved smoothly. Further, since the pallet 9 is not conveyed while being lifted by the hydraulic cylinder, the pallet 9 will not come into contact with the floor surface even if the hydraulic pressure is lowered due to some cause during the transportation.

When the pallet 9 is conveyed to a predetermined position, the pallet 9 is lifted by the lifting operation of the elevating cylinder 11, and the sliding plate 20 is moved to the sliding plate 2 as shown in FIG.
4, the support piece 23 is pulled out from below the sliding plate 20 by the operation of the hydraulic cylinder 21, and is returned to the original position. Then, the lifting cylinder 11 is further lowered to land the pallet 9 on the floor. After that, by repeating the same operation as described above, the pallet 9 and the transported article 9 are sequentially stored.

In the above embodiment, the sliding plate 20 having a certain thickness is fixed to the back surface of the skid plate 19, but a part of the skid plate 19 may be used as a sliding material.
A sliding material may be embedded in a part. In this case, the thickness of the support piece 23 is set so that the leg portions 9a of the pallet 9 are lifted from the floor surface with the upper surface of the support piece 23 in contact with the sliding material portion. Also, the sliding plate 2 is placed on the support piece 23.
However, the support piece 23 itself may be made of a sliding material.

In the above embodiment, the hydraulic cylinder is used as the means for moving the support piece 23, but mechanical means or the like may be used. Further, the place where the support piece 23 is installed is not limited to that of the embodiment, and if the space permits, it may be provided not on the front and rear of the skid plate 19 but on the side.

The above-described embodiment is an application of the present invention to a warehouse or a ship. However, the present invention is not limited to this, and a case where an object is conveyed by bridging two carriages. It is generally applicable.

[0026]

According to the first aspect of the present invention, there is provided a carrier device for bridging and supporting an object to be carried by a plurality of carriages, which is provided on the carriage and has a supporting member. Elevating means for raising and lowering, an interposing plate arranged on the supporting member of the elevating means, a sliding surface provided on the back surface of the interposing plate, and a sliding surface provided on the trolley and below the sliding surface. Since it has a supporting piece that can move forward and backward and has a sliding surface on the surface, the horizontal force generated by the deviation of the traveling speed of the multiple carts is caused by the sliding of the two sliding surfaces. It is absorbed, and it is possible to ensure that the bogie runs smoothly. Then, the unreasonable force does not act on the wheels of the truck or the rails of the track, the life of these is extended, and the breakdown of the truck is reduced.

According to the second aspect of the present invention, there is provided a transporting device for transporting a pallet bridging over two carriages provided so as to be able to travel on two tracks. A lift cylinder provided on the carriage, a skid plate placed on the rod of the lift cylinder to support the pallet, a sliding surface provided on the back surface of the skid plate, and a skid on the carriage. Since it is provided with a support piece which is provided below the sliding surface and can move back and forth, and the surface of which is a sliding surface, the horizontal force generated by the deviation of the traveling speed of the second carriage is It is absorbed by the sliding of the two sliding surfaces, and it is possible to ensure that the bogie runs smoothly. Then, the unreasonable force does not act on the wheels of the truck or the rails of the track, the life of these is extended, and the breakdown of the truck is reduced. Furthermore, since the load of the pallet is conveyed while being supported by the support piece on the trolley side, the pallet support state does not depend on the hydraulic system, and due to the decrease in hydraulic pressure, the pallet contacts the floor surface. It will not be lost.

[Brief description of drawings]

FIG. 1 is a partial side sectional view of a carrying device according to an embodiment of the present invention.

FIG. 2 is a partial side sectional view similar to FIG. 1, but in a different state.

FIG. 3 is a side view of the entire conveying device according to an embodiment of the present invention.

FIG. 4 is a plan view of an example of an apparatus that conveys an object to be conveyed across two carriages.

5 is a view taken along the line VV of FIG.

[Explanation of symbols]

 1 Rail 2 Track 4 Truck 9 Cargo 9 Pallet 9a Pallet leg 9b Pallet end 11 Lifting cylinder 16 Cylindrical support member 19 Skid plate 20 Sliding plate 21 Hydraulic cylinder 23 Supporting piece 24 Sliding plate

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Tanemitsu Yasuda 2-3-3 Uchisaiwaicho, Chiyoda-ku, Tokyo (Hibiya Kokusai Building) Kawasaki Steel Co., Ltd. Tokyo Head Office (72) Inventor Tsuneo Aihara Chiba, Chiba Prefecture Chiba Steel Works, Kawasaki Steel Co., Ltd., Chuo-ku, Chuo-shi (72) Inventor Tatsuya Ozawa 1 Kawasaki-machi, Chuo-ku, Chiba-shi, Chiba Kawasaki Steel Co., Ltd. Chiba Steel Works

Claims (2)

[Claims] 1. A transporting device for bridging and supporting an object to be transported to a plurality of trolleys for transporting the trolley, the elevator being provided on the trolley to raise and lower a support member, and the supporting member of the elevator means. An interposing plate arranged above, a sliding material surface provided on the back surface of the interposing plate, provided on the trolley, capable of advancing and retreating to the lower side of the sliding surface, and having a sliding surface on the surface. A carrier device having: a supporting piece having; 2. A transporting device for transporting a pallet bridged across two carriages that are respectively movably provided on two rows of tracks, and is provided on the carriage to lift a support member. An elevating means for causing the elevating means, an interposing plate placed on the supporting member of the elevating means and supporting the pallet, a sliding surface provided on a back surface of the interposing plate, and a sliding surface provided on the trolley. And a support piece which can be moved back and forth on the lower side of the surface and whose surface is a sliding surface.