JP2010037062A - Heavy load lifting-moving device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heavy load lifting-moving device stably and safely moving a heavy load such as a refrigerator. <P>SOLUTION: A roller 17 is journalled in a lower part of a body 11 by a roller shaft 16, and a forward extending fork 1 is rotatably journalled in an upper part of the body 11 by a fork shaft 9, and a backward extending handle member 19 is arranged in the rear of the body 11 in a front-low/rear-high state. The heavy load lifting-moving device 20 is prepared by two to be simultaneously used, and both leg parts on this side of the heavy load such as the refrigerator are lifted and draggingly moved. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

The present invention relates to a heavy load lifting and moving device used for safely lifting and moving a heavy load such as a refrigerator used in a general household.

FIG. 11 is a side view showing a conventional heavy lifting device. This conventional example is the same type as that described in Japanese Patent Application Laid-Open No. 2005-145712. A load receiving member 96 is provided at the front end of the frame 94 having the wheels 92, and a handle member 95 extending rearward on the frame 94 side is mounted to lift and load the heavy object W with the wheels 92 as a fulcrum. there were.
JP 2005-145712 A

As shown in FIG. 12, the heavy load lifting device 91 is used by inserting it into the center of the lower surface of a heavy load W such as a refrigerator using one heavy load lifting device 91. A size that can support a heavy object W such as a refrigerator is required, which is relatively large. Therefore, a large space is required for work, and it is difficult to move heavy objects W such as a refrigerator in a general household.

Moreover, since it supports at one point of the lower surface center of heavy goods W, such as a refrigerator, there exists a possibility that the heavy goods W, such as a mounted refrigerator, cannot be moved stably. Further, since the load receiving member 96 is a flat surface, if it is forcibly moved, the loaded heavy object W such as a refrigerator falls off from the load receiving member 96, which is very dangerous.

SUMMARY OF THE INVENTION An object of the present invention is to provide a heavy load lifting and moving apparatus that can move stably and safely.

In order to solve the above-mentioned problems, the heavy lifting and moving device of the present invention supports a roller with a roller shaft at the lower part of the main body and rotates a fork extending forward with a fork shaft at the upper part of the main body. It is a heavy load lifting and moving device provided with a handle member that is pivotally supported and that extends rearwardly in a front-rear, rear-rear shape at the rear of the main body.

First, two heavy load lifting and moving devices are prepared and used at the same time, and both legs on the near side of a heavy load such as a refrigerator are lifted.

Secondly, the front edge of the fork is provided with a convex portion whose middle portion projects upward from both end portions.

Thirdly, a cover provided with a barrier is attached and fixed to a portion gripped by the handle member.

In the first means, when the heavy object such as a refrigerator is inserted into the legs on both sides of the lower surface to support the heavy object, the fork can be inserted almost parallel to the floor at a low position, so It can be inserted into the part, and when lifting it, the fork rotates and the distance between the fulcrum and the action point becomes shorter, so it can be rubbed and moved to the front side with a light force. Is halved. As a result, it is possible to reduce the size of the heavy-weight lifting and moving device and to move in a small space.

In the second means, the front edge of the fork is provided with a convex portion whose intermediate portion projects upward from both end portions. As a result, the leg of a heavy object such as a refrigerator placed on the fork does not slide with respect to the fork while the leg of a heavy object such as a refrigerator is lifted and rubbed toward the front side. Supported and safe.

In the third means, a cover provided with a barrier is attached and fixed to a portion gripped by the handle member. As a result, when a leg portion of a heavy object such as a refrigerator is lifted, fingers are not pinched between the floor and the handle member, and the hand does not slip out of the cover while being rubbed forward.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a heavy lifting device according to an embodiment of the present invention. FIG. 2 is a partially exploded perspective view of a heavy lifting device according to an embodiment of the present invention. The fork 1 joins a flat plate 2 and a front plate 3 to each other in a L shape when viewed from the side, joins a side plate 4 to the upper portion of the front plate 3 in a U shape when viewed from above, and has a hole in the upper portion of the side plate 4. 5, and a convex portion 6 is provided on the front plate 3 so as to protrude toward the main body 11, and the spring 10 is locked. The front edge of the flat plate 2 is joined to a convex portion 7 whose intermediate portion projects upward from both end portions.

The fork 1 is urged clockwise around a metal fork shaft 9 by a spring 10 when there is no load, but the convex portion 8 of the side plate 4 serves as a barrier and contacts the concave portion 12 of the main body 11. Stopped at

The main body 11 is made of synthetic resin, has a hole 13 in the upper part, supports the fork 1 with a fork shaft 9, provides a circular recess 14 on the front side of the main body 11, and locks the spring 10. Yes. When the fork 1 receives a load exceeding the force of the spring 10 and the front plate 3 starts to rotate counterclockwise and comes closest to the main body 11, 1 stops at a position where it hits the convex portion 15 of the main body 11.

Since the synthetic resin roller 17 is pivotally supported by the metal roller shaft 16 at the lower portion of the main body 11, the heavy lifting device 20 can be moved back and forth freely. In addition, a circular recess 18 is provided at the rear part of the main body 11, and a handle member 19 of a metal pipe is inserted and fixed. A cover 21 made of synthetic resin is attached to the rear of the handle member 19. The character-shaped barrier 22 is fixed so as to be on the floor F side.

In order to lift and move a heavy object W such as a refrigerator by the heavy object lifting and moving device 20 configured as described above, as shown in FIG. The front edge convex portion 7 of the flat plate 2 is inserted so that the flat plate 2 of the fork 1 and the floor F are substantially parallel. When the cover 21 mounted on the rear side of the handle member 19 is started to be pushed down, the spring 10 between the front plate 3 and the main body 11 of the fork 1 is lost as shown in FIG. Is compressed, and the fork 1 stops at a position where it comes into contact with the convex portion 15 of the main body 11. As a result, the distance c between the fulcrum and the action point of the heavy load lifting and moving device 20 is shorter than the distance b between the fulcrum and the action point before being lifted as shown in FIG.

Furthermore, when the cover 21 of the handle member 19 is pushed down from this state, the leg portions 23 on both sides of the lower surface of the heavy object W such as a refrigerator are sufficiently lifted, and the handle member 19 and the floor F are substantially parallel as shown in FIG. Become. In this state, when the cover 21 mounted behind the handle member 19 is pulled forward, the roller 17 of the heavy load lifting and moving device 20 rotates and the heavy load W such as a refrigerator rubs and moves.

At this time, the front edge convex portion 7 of the fork 1 is fitted to the leg portion 23 of a heavy object W such as a refrigerator placed on the fork 1 and does not slide with respect to the fork 1, so that it can be stably and reliably provided. Supported.

At this time, since the U-shaped barrier 22 of the cover 21 is fixed so as to be on the floor F side, it is safe because there is no risk of injury by pinching a finger between the cover 21 and the floor F.

And as shown in FIG. 6, the weight concerning one is reduced by carrying out this operation using the two heavy load lifting and moving apparatuses 20 simultaneously. As a result, it is possible to reduce the size of the heavy load lifting and moving device 20 and to move alone in a small space. Therefore, lifting the heavy load W such as a refrigerator in a general household, It can be used for rubbing movement while lifting.

The perspective view which shows embodiment of this invention The partially exploded perspective view which shows embodiment of this invention Side view showing the state before starting action Side view showing the state during operation start Side view showing the state before the action ends A perspective view for explaining an example of use of an embodiment of the present invention Side view of a conventional heavy lifting device A perspective view for explaining an example of use of a conventional heavy lifting device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fork 2 Plane plate 3 Front plate 4 Side plate 10 Spring 11 Main body 17 Roller 19 Handle member 20 Heavy goods lifting movement device 21 Cover 22 Barrier

Claims (3)

  A roller is pivotally supported by a roller shaft at the lower part of the main body, and a fork extending forward by a fork shaft is pivotally supported at the upper portion of the main body. A heavy load lifting and moving apparatus characterized in that a handle member extending to the left side is provided.   The heavy object lifting and moving device according to claim 1, wherein the front edge of the fork is provided with a convex portion whose intermediate portion protrudes upward from both end portions.   The heavy load lifting and moving apparatus according to claim 1, wherein a cover provided with a barrier is attached and fixed to a portion gripped by the handle member.

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