JP2017039401A - Truck for easy loading/unloading of cargo in vehicle or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that a considerable labor is required for loading/unloading work with a conventional truck and a vehicle such as a truck, and further, an object fixed to a vehicle such as a truck and a container is difficult to be unloaded from a vehicle, with a cost required for modification of a vehicle or the like being much.SOLUTION: It is possible to provide a truck capable of freely reciprocating between ground and a loading space of a vehicle by providing a conventional truck with a caster equipped with a jack that is detachable from a support leg. Various objects can be loaded, and processing and attaching are possible according to work type and object.SELECTED DRAWING: Figure 26

Description

The present invention relates to a carriage capable of reducing human labor in an operation of loading and unloading a load with a vehicle or the like.

Most conventional trolleys are mainly provided with casters on the bottom surface of the trolley so that the trolley can run on a flat place such as the ground.
(For example, see Patent Document 1.)

An example of background art relating to the present invention will be described with reference to the drawings for a cart that can easily load and unload a vehicle.

In FIG. 24, the load (50) (51) loaded on the loading platform (D) of the vehicle (C) is moved from the loading platform (D) to the carriage (J) on the ground, or loaded on the carriage (J). In order to move the load (52) to the loading platform (D) of the vehicle (C), most methods require labor by human hands.

Alternatively, in FIG. 25, a method such as using a forklift (Z) to load / unload the load (53) on the loading platform (D) of the vehicle (C) can be considered.

Or the method etc. which equip a vehicle with a load receiving stand raising / lowering device are proposed.
(For example, Patent Document 1)

Published Japanese Patent Application Laid-Open No. 2014-104815

The problem to be solved will be described with reference to the drawings concerning a cart that can be easily loaded and unloaded with a vehicle or the like according to the present invention.

In FIG. 24, the load (50) (51) loaded on the loading platform (D) of the vehicle (C) is moved from the loading platform (D) to the carriage (J) on the ground, or loaded on the carriage (J). In order to move the load (52) to the loading platform (D) of the vehicle (C), most methods require labor by human hands. However, there are some heavy and large packages that are difficult to move by human power alone.

In FIG. 25, a forklift (Z) is used as means for moving a load that is difficult to move by human power, or a load receiving platform lifting device (Patent Document 1) is provided in a vehicle (C). In some cases.

However, a large amount of money may be required to attach the cargo receiving platform lifting device (Patent Document 1) to the vehicle or to prepare the forklift (Z).

In addition, it may be possible for several people to move a load that is difficult to move by one person. However, if the work is difficult, it may cause the bag to fall, fall, or be injured. Is also possible.

In this way, depending on the size and weight of the luggage, a wide variety of luggage can be used when it cannot be moved by human labor, or when there is no forklift (Z) or load receiving device lifting device (Patent Document 1). It is an object of the present invention to provide a cart that can be safely moved and can be easily loaded and unloaded with a vehicle or the like in order to reduce human labor.

In order to be able to easily carry out the movement of a load at a place different in height from the ground or at a load platform of the vehicle, the cart to be loaded and unloaded with the vehicle or the like of the present invention to be solved. Furthermore, in addition to the casters provided on the bottom of a conventional cart, a foldable support leg is provided.

Furthermore, the above-described collapsible support leg is characterized in that it is provided with a caster equipped with a jack that is detachable and can be vertically adjusted in multiple stages.

In addition, in the present invention, a truck for simplifying loading and unloading of a vehicle, etc., used for folding without supporting legs, folding for connecting the supporting legs and the carriage to reinforce and secure the supporting legs. It features a configuration that provides possible bracing.

Advantages of the present invention in which a cart that can be easily loaded and unloaded on a vehicle or the like is provided with a foldable support leg are as follows.

The effect is that the cart can be raised to a high position within the range of the height of the cart provided with casters on the bottom of the conventional platform plus the length of the support leg.

Further, the above-described effects of providing the caster with the jack, which is detachable and can be adjusted in multiple stages in height, on the foldable support leg are as follows.

Conventional carts are equipped with casters for running the cart, but the height of the cart itself cannot be changed. Therefore, the conventional cart is provided with a caster with a jack that is foldable and can be detachable and detachable and adjustable in height and can be adjusted up and down. To do.

That is, when using a foldable support leg, the conventional cart can be raised to the height of the loading platform such as a vehicle.

In addition, the effect of providing a collapsible support leg and a caster with a jack demonstrates the effect that the cart can be moved and traveled on the ground even if the caster provided on the conventional cart is not in contact with the ground.

That is, there is an effect that a caster provided on a conventional cart can be moved and loaded on a loading platform such as a vehicle by running the cart with a collapsible support leg and a jack on the ground.

Next, the operation of providing the braces provided for the safe use of the collapsible support legs provided in the conventional cart is as follows.

When using the collapsible support legs without folding them, the collapsible support legs are connected to the cart to prevent the collapsible support legs from collapsing because the collapsible support legs will fall in the folding direction. By providing the braces for the purpose, the folding support legs can be provided with strength, and the effect of stabilizing the carriage and the effect of improving safety can be exhibited.

Due to the above effects, the movement and traveling of the carriage of the present invention, which uses a caster equipped with a support leg and a jack, can be carried out on the ground. The festival, which is used by folding the support legs, can move the cart due to the traveling performance of the conventional cart by the casters provided in the conventional transport cart.

Therefore, the cart of the present invention that makes it easy to load and unload luggage exhibits the effect of enabling traveling in places with different heights, such as the ground and the vehicle.

In other words, with the vehicle of the present invention, the cart that makes it easy to load and unload luggage can be moved to a place with a different height with the luggage loaded, so that it is not necessary to reload the luggage. Thus, the human labor and the effect of greatly reducing the working time are exhibited.

It is a form perspective view concerning the embodiment of the present invention. FIG. 2 is a plan view of FIG. 1 according to an embodiment of the present invention. FIG. 3 is an AA side view of FIG. 2 according to an embodiment of the present invention. FIG. 3 is a BB side view of FIG. 2 according to the embodiment of the present invention. It is a form perspective view concerning the embodiment of the present invention. FIG. 6 is a plan view of FIG. 5 according to an embodiment of the present invention. FIG. 7 is an AA side view of FIG. 6 according to an embodiment of the present invention. It is a BB side view of Drawing 6 concerning an embodiment of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. It is a form perspective view concerning the implementation explanation of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a form perspective view which concerns on background art description and problem description which invention is going to solve. It is a form perspective view concerning background art explanation. It is a form perspective view concerning a typical figure.

An example of a form relating to the present invention will be described with reference to the drawings for a vehicle or the like that facilitates loading and unloading of luggage.

In FIG. 1, in the vehicle of the present invention, the cart (A) for easy loading and unloading of the load is used without folding the support legs (5) (6) (7) (8) made of steel. The arrangement of steel lumber (1) (2) (3) (4) (31) (32).
Arrangement of casters (9) (10) (11) (12).
Arrangement of support legs (5) (6) (7) (8) made of steel lumber.
Detachable casters (13) (14) (15) (16) with jacks.
Arrangement of foldable braces (19) (20) (21) (22) (23) (24) (25) (26) to reinforce the support legs.
Arrangement of fall prevention hardware (33) (34) (35) (36).
Arrangement of adjustment bolts (27) (28) (29) (30).
Arrangement of the handle (37) for carrying the carriage (A).
It is the form perspective view which showed the said main member and arrangement | positioning.

When the pedestal (5) (6) (7) (8) is used without folding the pedestal (A), the pedestal (5) (6) (7) (8) is detachable and equipped with a jack. FIG. 5 is a view showing the jack portions (13a), (14a), (15a), and (16a) provided with casters (13), (14), (15), and (16).

Further, the fall prevention hardware (33) (34) (35) (36) also has an effect for enabling the use of a forklift.

In FIG. 5, the casters (9) and (10) used when the support legs (5), (6), (7) and (8) made of steel are folded and used for the carriage (A) provided with the support legs of the present invention. (11) It is the form figure which showed arrangement | positioning of (12) and adjustment bolt (27) (28) (29) (30).

An example of implementation of a cart according to the present invention that facilitates loading and unloading of luggage will be described with reference to the drawings.

In FIG. 9, in the vehicle or the like, the form of the festival that uses the support legs (5), (6), (7), and (8) of the carriage (A) that facilitates the loading and unloading of the luggage, and the vehicle ( It is a perspective view of C).

Hereafter, the implementation method until it loads on the loading platform (D) of a vehicle (C) of the vehicle etc. of this invention which makes loading / unloading of a load easy is demonstrated.

In FIG. 9, the lift (E) of the loading platform (D) portion of the vehicle (C) is opened, and the carriage (A) is prepared for loading. At this time, by closing the tilts (L) and (R), the cart (A) can be safely loaded on the loading platform (D).

Next, the stoppers (13b) (14b) (for the detachable casters (13), (14), (15), (16)) provided on the support legs (5) (6) (7) (8) of the carriage (A) 15b) By carrying out the release of (16b), hold the handle (37) of the carriage (A) firmly, and push or pull the carriage (A) to move the carriage (A) freely on the ground. Is possible.

In FIG. 10, after confirming the release of the stoppers (13b) (14b) (15b) (16b), hold the handle (37) firmly and push it in the direction of the arrow (G) to move the carriage (A) to the vehicle. It becomes possible to prepare for loading onto the loading platform (D) of (C).

Move the carriage (A) in the direction of the arrow (G) with human (K) force until the caster (9) (10) of the carriage (A) is fully placed on the loading platform (D) of the vehicle (C). Carry out the move.

In Fig. 11, after confirming that the casters (9) and (10) of the bogie (A) have been moved to a position where they can be fully placed on the loading platform (D) of the vehicle (C), prepare the bogie (A). Fix the casters (15) and (16) so that they do not move with the stoppers (15b) and (16b) of the casters (15) and (16) equipped with a jack, and perform the following operations after confirming safety.

Once you have confirmed that the stoppers (15b) and (16b) of the casters (15) and (16) with the jacks on the carriage (A) are working, casters on the support legs (5) and (6) By carrying out the steering operation of the jacks (13a) and (14a) in the downward direction, the effect of adjusting the height of the support legs (5) and (6) provided on the carriage (A) can be exhibited.

In other words, by carrying out the steering operation of the jack (13a) (14a) of the caster equipped with the jack in the downward direction, the load applied to the foldable support legs (5) (6) (9) Due to the effect of transferring the load to (10), it exerts the effect of eliminating the load applied to the caster with detachable jack provided on the support legs (5) and (6).

Next, in FIG. 12, the brace (19) (19) for reinforcing the support legs (5) and (6) due to the effect of eliminating the load applied to the detachable jack casters provided on the support legs (5) and (6). 21) (23) (25) exerts the effect of eliminating the load.

Next, due to the effect of eliminating the load on the braces (19) (21) (23) (25) to reinforce the support legs (5) (6), the steel frame (3) and the support legs ( It is possible to remove the brace (23) that connected 5) and the brace (25) that connected the steel frame (4) and the support leg (6) of the carriage (A).

In FIG. 13, due to the effect of removing the braces (23) (25) that connected the steel frames (3) (4) and the support legs (5) (6) of the bogie (A), the support legs (5) (6 ) Can be folded.

In other words, due to the effect of removing the braces (23) (25) that connected the steel frames (3) (4) and the support legs (5) (6) of the bogie (A), the support legs (5) Since it is folded toward 7), it is possible to fold the support leg (6) toward the support leg (8).

Further, when the supporting legs (5) and (6) are folded, the detachable casters (13) and (14) provided on the supporting legs (5) and (6) can be removed.

Next, in FIG. 14, the support leg (5) is folded on the bottom surface of the steel frame (3) of the carriage (A), and the support leg (6) is folded on the bottom surface of the steel frame (4) of the carriage (A). Is possible.

Due to the above effects, the load on the carriage (A) was applied to the removable casters (13) (14) (15) (16) provided on the support legs (5) (6) (7) (8). Folding the support legs (5) (6) and removing the detachable casters (13) (14), the detachable casters ( 15) (16) and an effect that can be transferred to the casters (9) and (10) provided on the bottom surface of the carriage (A) can be exhibited.

Furthermore, due to the effect of transferring the load to the casters (9) and (10) provided on the bottom of the carriage (A), approximately 50% of the load of the carriage (A) is applied to the loading platform (D) of the vehicle (C). The effect which can be loaded can also be demonstrated.

Next, in FIG. 15, the casters (9) and (10) and the bogie (A) provided for the bogie (A) are obtained by releasing the stoppers (15b) and (16b) of the casters (15) and (16) equipped with the jack. The caster (15) (16) equipped with a jack provided on the support legs (7) (8) provided for) can be moved by the effect of moving the cart (A) with the force of the person (K) (G) It becomes possible to move in the direction of.

In FIG. 16, due to the above effect, the cart (A) can be sufficiently lowered onto the loading platform (D) of the vehicle (C) by the force of the person (K) and the casters (11) and (12) provided in the cart (A). It is possible to move to a certain position.

Next, in FIG. 17, the casters (11) and (12) provided on the carriage (A) are moved to the loading platform (D) of the vehicle (C) by lowering the handles of the jacks (15a) and (16a). It is possible to carry it.

In other words, due to the effect of placing the casters (11), (12) on the loading platform (D) of the vehicle (C), the load applied to the detachable jack casters (15), (16) 11) An effect that can be transferred to (12) can be exhibited.

The braces (20) (22) (24) (26) for reinforcing the support legs (7) (8) due to the effect of eliminating the load of the caster with removable jack provided on the support legs (7) (8). The effect of eliminating the load of.

In FIG. 18, the steel frame (2) of the carriage (A) is obtained by the effect that the load of the braces (20), (22), (24), and (26) for reinforcing the supporting legs (7) and (8) is eliminated due to the above-described effect. ) And the brace (7) and the brace (20) and the brace (A) steel frame (2) and the brace (8) can be removed.

In other words, due to the effect of removing the braces (20) (22) that connected the steel frame (2) (3) (4) and the support legs (7) (8) of the bogie (A), the support legs (7) ( 8) It is possible to demonstrate the effect that can be folded.

In other words, in FIG. 19, due to the effect of removing the braces (20) and (22) that connected the steel frame (2) and the support legs (7) and (8) of the carriage (A), the support leg (7) Since it is folded in the direction of 8), the effect that it is possible to fold the support leg (8) toward the support leg (7) can be exhibited.

Further, when the support legs (7) and (8) are folded, the removable casters (15) and (16) provided on the support legs (7) and (8) can be removed.

In FIG. 20, due to the effects described above, the load of the carriage (A) is applied to the detachable casters (13) (14) (15) (16) provided on the support legs (5) (6) (7) (8). The casters provided on the bottom surface of the carriage (A) were loaded by folding the support legs (7) and (8) and removing the removable casters (15) and (16). (9) The effects that can be transferred to (10), (11), and (12) can be exhibited.

Due to the above-mentioned effects, all the loads can be transferred to the casters (9), (10), (11), and (12) provided on the bottom of the carriage (A). The effect that the load can be loaded on the loading platform (D) of the vehicle (C) can also be exhibited.

Next, in FIG. 21, in order to operate the casters (9), (10), (11), and (12) provided for the carriage (A), the handle (37) is firmly held and pushed, so that the human power (K ), It is possible to move the cart (A) in the direction of the arrow (G).

Next, in FIG. 22, the entire carriage (A) can be moved onto the loading platform (D) of the vehicle (C) by the effect of moving the carriage (A).

After all the carriages (A) have been placed on the loading platform (D) of the vehicle (C), the lifts (L) and (R) of the loading platform (D) of the vehicle (C) are widened to prepare for the side of the carriage (A). The adjustment bolts (27) (28) (29) (30) can be operated.

In addition, casters (9), (10), (11), and (12) provided on the cart (A) can be operated by applying a load to the adjuster bolts (27), (28), (29), and (30) provided on the cart (A). The load of the casters (9), (10), (11), and (12) provided on the carriage (A) is reduced by the effect of transferring the load to the adjuster bolts (27), (28), (29), and (30). The effect of stabilizing the entire cart (A) when loaded can be exhibited.

Next, an implementation method for moving the cart (A) of the present invention from the loading platform (D) of the vehicle (C) to the ground will be described.

In FIG. 23, casters (9), (10), (11) provided to the cart (A) by the operation of applying no load to the adjuster bolts (27), (28), (29), (30) provided to the cart (A). (12) By applying the load, the load applied to the adjuster bolt (27) (28) (29) (30) can be applied to the casters (9) (10) (11) (12) The effect of transferring can be demonstrated.

In other words, the effect of being able to move the carriage (A) can be exhibited by the effect of applying a load to the casters attached to the carriage (A).

Next, in FIG. 22, the caster (A) provided on the carriage (A) is subjected to an operation without applying a load on the adjustment bolts (27) (28) (29) (30) provided on the side surface of the carriage (A). 9) (10) (11) (12) After the movement of the carriage (A) is finished, the vehicle (C) can be operated so that the carriage (A) can be safely unloaded from the carriage (D) of the vehicle (C). ) Close the bottom (L) and (R) of the loading platform (D).

Next, in FIG. 21, in order to operate the casters (9), (10), (11), and (12) provided for the carriage (A), the person's force (K ), It is possible to move the carriage (A) in the direction of the arrow (H).

Due to the effect of rotating the casters (9), (10), (11), and (12) provided on the cart (A), the cart (A) is moved in the direction of the arrow (H) by the force of the person (K). The range of movement at that time is that the foldable support legs (7), (8) move to the front of the gate (E) of the vehicle (C) so that the support legs (7), (8) of the carriage (A) The effect that it can be taken out of the loading platform (D) of the vehicle (C) is exhibited.

When moving the carriage (A), the carriage (A) moves too much in the direction of the arrow (H), so that the casters (11) and (12) provided in the carriage (A) are loaded onto the loading platform ( As a safety measure when falling from D), the metal fittings (34) and (36) into which the forklift claw can be inserted can exert the effect of the safety measure for preventing a sudden drop.

Next, in FIG. 20, it is possible to take out the support legs (7) and (8) provided on the carriage (A) to the outside of the loading platform (D) of the vehicle (C). The effect that it becomes possible to project the supporting legs (7) and (8) folded at the bottom of the frame (2) is exhibited.

At this time, in FIG. 19, the detachable casters (13) and (14) can be exerted while attaching the supporting legs (7) and (8) folded to the bottom of the steel frame (2) of the carriage (A). .

Next, in FIG. 18, the steel frame (2) of the bogie (A) with foldable braces (20) (22) to reinforce the support legs (7) (8) provided on the bogie (A), and By connecting the support legs (7) and (8), the support legs (7) and (8) are prevented from falling down.

Next, in FIG. 17, the carriage (A) is operated by raising the jacks (15a) and (16a) provided on the casters (15) and (16) with removable jacks provided on the support legs (7) and (8). It is possible to transfer the load applied to the casters (11) and (12) provided in the case to the casters (15) and (16) with jacks that can be attached and detached.

Due to the effect, the load applied to the casters (11) and (12) provided on the carriage (A) is transferred to the casters (15) and (16) with removable jacks provided on the support legs (7) and (8). Thus, the effect of transferring about 50% of the load from the platform (D) of the vehicle (C) to the cart (A) can be demonstrated.

In FIG. 16, due to the effect, by pulling the handle (37) provided on the carriage (A), the casters (9) and (10) provided on the carriage (A) and the casters (15) with a detachable jack (15) ( By rotating 16), it is possible to move the carriage (A) further in the direction of arrow (H).

Next, in FIG. 15, by moving the carriage (A) in the direction of the arrow (H), the casters (9) and (10) provided for the carriage (A) are located in front of the gate (E) provided for the vehicle (C). The support legs (5) and (6) provided on the carriage (A) can be brought out of the loading platform (D) of the vehicle (C).

When the carriage (A) is moved, the carriage (A) moves too much in the direction of the arrow (H), so that the casters (9) and (10) provided for the carriage (A) are loaded onto the loading platform of the vehicle (C) ( As a safety measure when falling from D), the metal fittings (35) and (33) into which the forklift claw can be inserted can exert the effect of the safety measure for preventing a sudden drop.

Next, in FIG. 14, the casters (15) (16) are prevented from rotating by the stoppers (15b) (16b) of the detachable jack casters (15) (16) provided on the support legs (7) (8). In addition, the following operations can be safely performed by implementing the fixing measures.

Next, in FIG. 13, it is possible to take out the support legs (5) and (6) provided on the carriage (A) to the outside of the loading platform (D) of the vehicle (C). The supporting leg (5) folded at the bottom of the frame (3) and the supporting leg (6) folded at the bottom of the steel frame (4) of the carriage (A) can be extended.

At this time, it is also possible to exhibit an effect that it is possible to attach the detachable casters (13) and (14) while projecting the support legs (5) and (6) folded on the bottom of the steel frame of the carriage (A).

Next, in FIG. 11, the foldable brace (23) for reinforcing the support leg (5) provided on the carriage (A) and the steel frame (3) of the carriage (A) are connected, and the support leg (6) is attached. By connecting the foldable brace (28) for reinforcement and the steel frame (4) of the carriage (A), the support legs (5) and (6) are prevented from falling down.

Next, the caster (15a) (16a) of the detachable jack caster (15a) (16a) is operated to raise the load applied to the caster (9) (10) provided on the cart (A). ) Demonstrate the effect that can be transferred to (16).

Due to the above effect, the load applied to the casters (9) and (10) provided on the carriage (A) is transferred to the casters (13) and (14) with removable jacks provided on the support legs (5) and (6). Thus, the effect of transferring 100% of the load from the loading platform (D) of the vehicle (C) to the cart (A) can be exhibited.

Next, in FIG. 10, by holding and pulling the handle (37) provided on the cart (A), the cart (A) can be moved in the direction of the arrow (F).

In FIG. 9, due to the effect of rotating the caster with detachable jack (13) (14) (15) (16) provided in the cart (A), the cart (A) of the present invention is changed to the loading platform of the vehicle (C) ( Even if it is lowered from D), it can move the carriage (A) freely with the power of the person (K).

Due to the above-described effects, the effect of freely moving the carriage (A) on the ground and loading the carriage (A) onto the vehicle (C) is exhibited.

Various types of objects can be loaded on the cart of the present invention.

The cart of the present invention can manufacture a cart having a shape corresponding to the shape and size of the object to be loaded.

The casters provided in the cart of the present invention can select various sizes and allowable loads.

The cart of the present invention is an invention having the possibility of adapting to various industries and occupations.

1. 2. 3. 4. 31. 32 Steel frame
5. 6. 7. 8 Support legs
9. 10. 11. 12 Fixed casters
13.14.15.16 Caster with jack
19. 20. 21. 22 Bracing
23. 24. 25. 26 Bracing
27. 28. 29. 30 Adjustment bolt
33. 34. 35. 36 Fall prevention hardware (forklift claw, also serves as insertion specification)
37 Handle for moving cart

Claims (11)

(Refer to Fig. 1) Steel lumber (2) (3) (4) (31) on the bottom of the frame assembled with casters (10) (11) (12) (13), made of steel lumber It has a feature with foldable support legs (5), (6), (7) and (8). (Refer to FIG. 1) The carriage according to claim 1 is characterized in that it is provided with adjusting bolts (27) (28) (29) (30). (Refer to FIG. 1) The cart of claim 1 is provided with a fall prevention hardware (33) (34) (35) (36)). In Claim 3, the fall prevention hardware (33), (34), (35), and (36) has a feature that also serves as an insertion fitting of the forklift claw. In Claim 4, the steel lumber (1) between the fall prevention hardware (33) and (35) and the steel lumber (32) between the fall prevention hardware (32) and (34) have an effect of receiving a forklift claw. Has characteristics. (Refer to FIG. 1) In claim 1, when the support legs (5), (6), (7), and (8) are used without being folded, the support legs tend to fall in the folding direction. In order to prevent the support leg from falling down, it has a characteristic feature including bracing (19) (20) (21) (22) (23) (24) (25) (26). In Claim 6, in order to prevent the effect | action in which a support leg falls down, the brace provided is equipped with the characteristic which can be folded. (Refer to FIG. 1) In claim 1, when the foldable support legs (5), (6), (7), and (8) are used without being folded, the support legs can be attached to and detached from the end parts of the support legs in a multistage manner. The caster (13), (14), (15), (16) provided with the jack which can be adjusted up and down is provided. (See Fig. 1) In Fig. 1, the position of the caster (9) provided on the bottom surface of the steel frame (3) is between the safety measure hardware (35) and the adjustment bolt (27). 35), the position with the caster (10) on the bottom of the steel frame (4) is the safety measure between the safety measure hardware (33) and the adjustment bolt (28). It has a feature that defines that it is provided at a position close to the hardware (33). The position of the caster (11) provided on the bottom surface of the steel frame (3) is provided between the safety measure hardware (36) and the brace (24) at a position close to the safety measure hardware (36). The position with the caster (12) provided in the steel frame (4) is provided between the safety measure hardware (34) and the brace (26), at a position close to the safety measure hardware (36). It has the characteristics that determine that. (See FIG. 1) In claim 1, the position of the collapsible support leg (5) is defined as the bottom of the intersection of the steel frame (3) and the steel frame (31), and the collapsible support leg (6) The position has a feature that defines the bottom of the intersection of the steel frame (4) and the steel frame (31). The position of the foldable support leg (7) is determined as the bottom of the intersection of the steel frame (3) and the steel frame (2), and the position of the foldable support leg (8) is the position of the steel frame (4 ) And the bottom of the intersection of the steel frame (2). In claims 1 to 8, the steel lumber to be used and the selection of casters are selected according to the conditions defined in claims 9 and 10 according to the method of use, the environment of use, the purpose of use, and the purpose of improving safety. When fulfilling, it has a feature that can be selected in various ways and the quantity can be added

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