JPH06255993A - Carriage with elevatable table - Google Patents

Abstract

PURPOSE:To easily and stably carry out the transferring (warehousing and forwarding) operation to the shelf side by opening a table at least on one side, and by providing a gangboard that is projected farther outward than the one side of the body, to this opened side. CONSTITUTION:A table 20 is elevated in such a state that a gangboard 24 does not interfere with a shelf 50. The elevation of the table is stopped when the gangboard 24 reaches slightly above the goods receiving part 51 of a purposed stage. The carriage is brought to the side of purposed goods. This is carried out in such a way that the one side of the gangboard 24 enters into the shelf 50 and positions above the goods receiving part 51, and also the gangboard 24 is opposite to the goods. In this state, the table 20 is lowered. When the gangboard 24 that is integrally lowered with the table 20 reaches the goods receiving part 51, a limit switch 40 is detectedly operated to stop the lowering of the table 20. The goods are drawn out from the goods receiving part 51 onto the gangboard 24, and then taken out on the table 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley with a lifting table which is used for manually loading and unloading articles from, for example, a shelf in front of the shelf.

[0002]

2. Description of the Related Art Conventionally, as a bogie of this type, the structure disclosed in Japanese Utility Model Publication No. 54-16427 has been provided.
In this conventional structure, a pillar is erected from the rear part of the vehicle body, and a mounting table is provided which is guided by the pillar side to move up and down. A plurality of hanger plates interlocking with the mounting table via a chain and a vehicle body are provided. It has a book spring and a hydraulic cylinder.

In this conventional structure, when an article is placed on the mounting table, the hanger plate rises against the contracting force of the spring group, so that the mounting table descends according to the load. In addition, a heavy load can be dealt with by raising and lowering the mounting table by operating the hydraulic cylinder. Then, after stopping the cart in front of the shelf, the loading table is leveled with the desired cargo receiving section on the shelf, so that the transfer (loading / unloading) of heavy goods between these cargo receiving section and the loading table can be performed manually. Can be done by

[0004]

According to the above-mentioned conventional structure, since the manual transfer is performed by lifting a heavy object, when the transfer level is low, the back pain of the operator may be caused, and the transfer may be performed. When the level is high, the transfer work is unstable.

An object of the present invention is to provide a carriage with a lifting table that can easily and stably perform a transfer (storage / removal) operation on the shelf side.

[0006]

In order to achieve the above object, a trolley with a lifting table according to the first aspect of the present invention is provided with a main body having a plurality of wheels having a turning function, and can be lifted and lowered by being guided by a support member from the main body side. A table, an elevating means for elevating and lowering the table, and a handle for traveling, the table is open at least on one side, and on the open side, the table protrudes outward more than one side of the main body. A crossing board is provided.

The trolley with a lifting table according to the second aspect of the present invention is provided with a drive-type lifting means for lifting and lowering the table, a battery, and a lifting operation unit on the main body side, and on the table side, for a load receiving unit of a shelf. A detection device for detecting the stop position of the cross plate is provided.

Further, in the cart with the lifting table according to the third aspect of the present invention, a manual lifting means for lifting the table is provided on the main body side.

[0009]

According to the structure of the first aspect of the present invention described above, the trolley having wheels with a turning function is moved forward, backward, laterally, diagonally, etc. by applying a pushing and pulling force through the handle. Can drive. Then, in the cart, the level of the table is adjusted with respect to the intended cargo receiving portion of the shelf. That is, in the state that the crossover plate does not interfere with the shelf
The lifting means is operated to move the table up, and the lifting is stopped when the crossover plate is slightly above the load receiving portion of the target stage.

With the table thus raised to a predetermined level, the cart is laterally attached to the side of the intended article. This lateral attachment is performed so that the one sided crossing plate enters the shelf and is positioned above the load receiving portion, and the crossing plate faces the article. In this state, when the elevating means is operated to move down the table, the crossing plate which moves down integrally with the table approaches the upper surface of the load receiving portion,
Then, the crossing board is landed on the load receiving portion, and the descending movement of the table is stopped.

After that, when the worker applies a pulling force or a pushing force to the article by applying a hand to the article, the article is moved between the load receiving portion and the table, and at that time, the article is moved over the crossing board at the joint. Moving. The trolley in which the articles are loaded and unloaded in this manner can be moved laterally to pull out the crossing board to a position where it does not interfere with the shelf side, and can travel to the intended location.

Further, according to the structure of the second aspect of the present invention, the table can be moved up and down through the drive-type lifting means by operating the lifting operation section. Then, when the table is moved down, when the crossing plate has landed on the load receiving portion or immediately before landing, the detection device can be detected and the descending motion of the table can be stopped based on this detection signal.

Further, according to the structure of the third aspect of the invention, the table can be moved up and down by operating the manual lifting means.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Reference numeral 1 denotes a base (main body), which is formed in an H shape by a pair of left and right side frames 1A and a left and right frame 1B connecting between intermediate portions near the rear ends of the side frames 1A. A pair of left and right wheels 3 is attached to the front lower surface and the rear lower surface of the both-side frames 1A via a turning bracket 2, respectively. Here, the wheel 3 is preferably of a type having a foot-operated brake (not shown). Further, resin corner members 4 are attached to the front and rear ends of the both side frames 1A.

From the left and right frames 1B to both side frames 1
A pillar member 10 is erected from the upper surface over A. The strut member 10 includes a pair of left and right posts 11 and these posts 11
Lower beam 12 that connects the lower ends of the two, upper beam 13 that connects the upper ends, a back panel 14 that is placed between the rear surfaces of both posts 11 and both beams 12 and 13, and between the front surfaces of both beams 12 and 13. Front panel 15 and the upper resin cover disposed between the upper ends of both posts 11 and the upper surface of the upper beam 13.
It consists of 16 and. Vertical slits 17 are formed between the side edges of the front panel 15 and the inner side surfaces of both posts 11.

Both posts 11 are aluminum rails, and guide grooves are formed over the entire length on the inner surface sides facing each other. A carriage 18 that can be raised and lowered by being guided in the guide groove via a roller or the like is provided in the column member 10. The carriage 18 has a connecting member 19 that is continuously provided in front of the carriage 18. The connecting member 19 protrudes outside the front surface of the column member 10 through the slit 17 and can move up and down on the front surface side.

A table 20 is arranged in front of the pillar member 10, and the table 20 is fixed between the connecting members 19. The table 20 includes a U-shaped reinforcing member 21 in a plan view.
And a resin plate 22 having a rectangular shape in plan view, which is arranged so as to cover the reinforcing material 21, and is fixed to the connecting member 19 via both free ends of the reinforcing material 21. The resin plate 22 is integrally formed with an article restricting portion 23 from the rear end thereof, and further, on both sides thereof, a transition plate projecting to the outer side of both sides of the base 1.
24 and the hanging stopper portion 25 are integrally formed.

A cylinder device 26 for raising and lowering the carriage 18 is provided in the column member 10. The cylinder device 26 is an example of a drive-type raising and lowering means, and may be, for example, a screw shaft mechanism. On the rear surface side of the pillar member 10, a control unit 30 is provided from the upper surface over the both side frames 1A, and the battery 31 is provided in the control unit 30.
And a control device 32 for controlling forward / reverse driving and stopping of the elevating means 26. Further, a raising / lowering operation unit 35 is provided on the upper surface of the control unit 32, and the raising / lowering operation unit 35 has a raising operation button 36, a lowering operation button 37, a reset button 38, a raising / lowering stop button 39, and the like.

On the lower surface side of the free end of the transition plate 24,
A limit switch 40 is provided for detecting the stop position of the crossover plate 24 by contacting another object. This limit switch 40
Is an example of a detection device, and the detection operation gives a detection signal to the control device 32 so that the control device 32 causes the cylinder device to operate.
Apply a fall stop signal to 26.

A handle 45 for traveling is provided on the rear side of the control unit 30. The handle 45 is a pair of left and right brackets 46 fixed to the rear surface side of the control unit 30 and extending rearward,
It consists of a pipe body 47 in the left-right direction attached between the free ends of these brackets 46. In addition, on the lower surface of the tip of the table 20,
A receiving member 27 is provided which can come into contact with the upper surface of the side frame 1A when the table 20 reaches the lower limit.

Reference numeral 50 designates a shelf, which has a plurality of stages of load receiving portions 51 in the vertical direction, and the load receiving portions 51 can support an article 55. In this case, there are various arrangements of the shelves 50, such as those shown in A and B of FIG.

Next, the usage of the above embodiment will be described. For example, a trolley with an empty table 20 moves forward when an operator pushes the handle 45 to move it, and pulls the handle 45 to move backward. Further, since the wheel 3 has a turning function, the vehicle can travel laterally or obliquely depending on the direction of action of the pushing / pulling force.

When the trolley reaches the vicinity of the shelf 50, the level of the table 20 is adjusted with respect to the intended load receiving portion 51. That is, in a state where the transition plate 24 does not interfere with the shelf 50 side, for example, the raising operation button 36 is operated, and the cylinder device 26 is actuated to the raising side in response to a command from the control device 32, thereby raising the table 20.

This ascending is stopped when the crossover plate 24 is slightly above the load receiving portion 51 of the target stage.
At that time, the stop operation is performed by the operator visually pressing the elevating stop button 29, or by pressing the step setting button corresponding to the desired step before pressing the elevating operation button 36. Although not shown, the stage setting button group and the like are usually provided in the control unit 30.

With the table 20 thus raised to a predetermined level, the trolley is used as a target article 55 on the shelf 50.
Sideways on the side of. This horizontal attachment is a cross plate 24 on one side.
Is inserted into the shelf 50 so as to be located above the load receiving portion 51, and the crossover plate 24 faces the article 55. At that time, the table 20 may enter above the cargo receiving portion 51,
The stopper portion 25 comes into contact with the front surface of the load receiving portion 51 so as to be blocked.

In this state, operate the lowering operation button 37,
In response to a command from the control device 32, the cylinder device 26 is actuated to the descending side, so that the table 20 is moved downward. Then,
The limit switch 40 is detected when the crossover plate 24 that moves down integrally with the table 20 approaches the upper surface of the load receiving portion 51 and the crossover plate 24 lands on the load receiving portion 51, or immediately before landing. This detection signal enters the control device 32, and the control device 32 gives a stop signal to the cylinder device 26, thereby stopping the downward movement of the table 20.

After that, in a state where the brakes of the wheels 3 are applied and the trolley is set, the worker holds the article 55 and applies a pulling force to the article 55. Then, the article 55 is pulled out from the top of the load receiving portion 51 onto the crossover plate 24, and then taken out onto the table 20.

In this way, the trolley in which the desired article 55 is taken out onto the table 20 can be laterally moved so that the crossover plate 24 can be taken out to a position where it does not interfere with the shelf 50 side.
Then, the reset button 38 is operated to move the table 20 to a predetermined position (home position), and the vehicle can travel to a desired place. It should be noted that the table 20 may be raised slightly before the extraction.

The operation of loading the articles 55 on the shelves 50 by using the dolly is the same as the above, with the dolly set on the shelves 50, the operator hands the articles 55 on the table 20, A pushing force may be applied to the article 55. Due to this pushing force, the article 55 is pushed from the table 20 onto the transition plate 24, and is then stored on the cargo receiving section 51.

FIG. 6 shows another embodiment of the present invention. That is, the control unit 30 is provided with a manual handle 60, which is an example of a manual lifting unit, and the interlocking device that moves the carriage 18 up and down by rotating the manual handle 60 from the control unit 30 to the strut member 10. 61 is provided.

According to this alternative embodiment, the operator can rotate the manual handle 60 to move the table 20 up and down via the interlocking device 61 and the carriage 18, and the lifting operation can be stopped by the operator. It is performed based on the visual inspection of. In order to perform the descending stop accurately and reasonably, even if the alarm switch (lamp or alarm device) 62 provided in the control unit 30 is activated by the detection movement of the limit switch 40, the operator may be notified of the operation stop. Good.

In each of the above-described embodiments, the structure in which the crossover plates 24 are provided on both sides of the table 20 is shown, but this may be the structure in which the crossover plates 24 are provided on only one side or at least one side. A configuration may be used in which a crossover plate 24 is provided on the front part.

Although the limit switch 40 is shown as a detection device in each of the above-described embodiments, the limit switch 40 is provided with a photoelectric tube device 65 on the side of the table 20 as shown in FIG. The detector 66 may be provided. In this case, the table 20 is lowered, and when the crossing plate 24 is landed on the load receiving portion 51, the phototube device 65 is detected and faces the detected object 66, and the descending movement of the table 20 is automatically stopped. I am letting you.

In the above embodiment, the push button type such as the ascending operation button 36 and the descending operation button 37 is shown, but this may be a foot switch type or the like. In each of the above-described embodiments, the flat plate-shaped table 20 is shown,
As shown in FIG. 8, this has a support surface with a large number of idle rollers 70.
And the guides 71 may be provided on the other three sides except the one side having the transition plate 24. In this case, the movement of the article 55 on the table 20 side can be performed lightly and smoothly. A variable stopper may be provided on the table 20 side so that the article 55 on the table 20 is located in the central portion.

[0035]

According to the first aspect of the present invention having the above-described structure, in the manual transfer (loading / unloading) work, articles are laterally moved (slide).
When the transfer level is low or high, the transfer can always be performed easily and stably without causing back pain.

According to the second aspect of the present invention, the table can be easily moved up and down by a driving method, and the table can be stopped at a desired position without burdening the cross plate. .

Further, according to the third aspect of the invention, the table can be raised and lowered by manual operation, and the structure on the trolley side can be simplified as compared with the drive type.

[Brief description of drawings]

FIG. 1 is a perspective view of a front side of a cart with a table according to an embodiment of the present invention.

FIG. 2 is a perspective view of a rear surface side of the cart with the table.

FIG. 3 is a side view of the cart with the table.

FIG. 4 is a front view of the cart with the table at the time of storage.

5A and 5B are schematic plan views showing the layout of shelves.

FIG. 6 is a side view of a cart with a table showing another embodiment of the present invention.

FIG. 7 is a side view of an essential part showing another detection method of the present invention.

FIG. 8 is a perspective view showing another example of the table of the present invention.

[Explanation of symbols]

 1 base stand (main body) 2 swivel bracket 3 wheel 10 pillar member 11 post 17 slit 18 carriage 19 connecting member 20 table 22 resin plate 23 article control unit 24 crossing plate 25 stopper unit 26 cylinder device (driving type lifting means) 30 control Part 31 Battery 32 Control device 35 Lifting operation part 36 Lifting operation button 37 Lifting operation button 40 Limit switch (detection device) 45 Handle 50 Shelf 51 Load receiving part 55 Article 60 Manual handle (manual lifting means) 65 Phototube device (detection device) )

Claims (3)

[Claims] 1. A main body having a plurality of wheels with a swivel function, a table which can be raised and lowered by being guided by a support member from the side of the main body, a raising and lowering means for raising and lowering the table, and a handle for traveling. At least one side of the table is open, and a trolley with an elevating table is provided on the open side, and a crossover plate protruding outward from one side of the main body is provided. 2. A detection device for detecting a stop position of a crossing plate with respect to a load receiving part of a shelf is provided on a main body side, a drive type elevating means for elevating and lowering a table, a battery, and an elevating operation part. The trolley with a lifting table according to claim 1, which is provided. 3. A trolley with a lifting table according to claim 1, wherein a manual lifting means for lifting the table is provided on the main body side.