JPH0318466Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Field of Application> The disclosed technology belongs to the field of structural technology for workpiece hangers used in automobile assembly lines and the like.

Therefore, this invention has a workpiece suspension structure in which a frame has a hanger for hanging at the upper part, and a hook is provided at the lower part of the frame for securing to a workpiece such as a transaxle unit used in a four-wheel drive vehicle. In particular, a sliding part is provided at the lower part of the frame, and the sliding part engages with an arcuate guide part formed on the upper part of the support having the hook, so that the workpiece is suspended. A link having a hanger is pivotally supported on the frame, and a guide hole provided in the link engages with a pin or the like provided in the support body to rotate the workpiece. This invention relates to a workpiece hoist structure in which the position of the hanger follows the accompanying movement of the center of gravity.

<Prior art> Conventionally, a transaxle assembly (hereinafter simply referred to as transaxle assembly) consisting of a transfer shaft, differential gear, and transaxle of a four-wheel drive vehicle is transported on a production line. When the workpiece is attached to a vehicle engine, a workpiece hoist 1 as shown in FIG. 5 is used.

The workpiece hanger 1 has a hanger 3 at the upper part of a frame 2, and a pair of hooks 4, 4, which are engaged with a workpiece such as a transaxle assembly, are fixed at the lower part.

<Problems to be solved by the invention> However, in the case of the workpiece hoisting device 1 based on the above-mentioned conventional technology, the center of gravity and the mounting position of the workpiece to be hung are largely deviated from each other, as in the case of a transaxle assembly, etc. In cases where the workpiece must be tilted during installation, work such as lifting one end of the workpiece is required.
This had the disadvantage that it involved handling heavy objects, placing a burden on the worker, and making it impossible for it to function satisfactorily as a hanging device.

In addition, by tilting the workpiece, the installation position changes vertically, and by changing the center of gravity, etc., he is extremely skilled at operating hoists, etc. to position the hanging equipment, as well as the above-mentioned heavy object work. There was a problem that required work.

For example, as shown in Japanese Unexamined Patent Publication No. 53-91258, there is a device in which a slide mechanism portion is formed in the lower part of the frame and the upper part of the support body to allow both members to slide. If the workpiece or supporting body moves relative to the frame, the hanger cannot shift its position and cannot follow the movement of the center of gravity of the workpiece, resulting in the workpiece being hung stably. The problem was that it was difficult to do.

The purpose of this invention is to solve the technical problem of the workpiece suspension based on the above-mentioned conventional technology. It is an object of the present invention to provide an excellent workpiece hoist that can be used to adjust the hoisting position and is useful in the field of use of conveyors in various industries.

<Means for solving the problem> In order to solve the above-mentioned problem, the structure of this invention, which is aimed at the above-mentioned utility model registration claim in accordance with the above-mentioned purpose, is to solve the above-mentioned problem. In a workpiece hanger structure in which a hook for securing a workpiece is provided at the lower part of the frame, the support body and the workpiece can be slid freely relative to the frame at either the lower part of the frame or the upper part of the support body having the hook. A slide portion is formed on the other side, and a guide portion is provided on the other side with which the slide portion engages, and a link having a hanger is pivotally supported on the frame, and either the link or the support is provided with a guide portion. The workpiece hanger has a structure in which a guide hole that engages with a pin provided on the other side is formed.

<Function> Thus, a hanger is provided on the link pivotally supported by the frame, and the slide portion provided at the lower part of the frame is engaged with the upper guide portion of the support body having the hook on which the workpiece is secured. Then, a pin or the like provided on the support body is engaged with a guide hole formed on the link, and the posture of the workpiece is adjusted by moving the support body along the guide part while the workpiece is suspended. When the center of gravity of the workpiece changes accordingly, the link moves relative to the frame due to the guide hole in the link that engages with the support pin, and the hanger position follows and moves to the optimal hanging position. Technical measures have been taken to make this possible.

<Example> Next, an example of this invention will be described below based on the drawings. Note that the same parts as those in the conventional mode shown in FIG. 5 will be described using the same reference numerals.

In the embodiment shown in FIGS. 1 and 2,
1' is a workpiece hoist that forms the gist of this invention;
In order to suspend the transaxle assembly 5 as a workpiece indicated by a two-dot chain line, it is suspended from a hoist or the like (not shown) along the engine conveyance line.

As shown in FIG. 2, the workpiece hoist 1' has a pair of parallel triangular frames 2', 2' at the top, and the upper ends of a pair of links 6, 6 are attached to the top of the frames 2', 2'. They are each pivotally supported by pins 7, 7.

A transaxle assembly 5 in which a horizontal bar-shaped hanger 3' is suspended between the links 6 and 6 at a predetermined position below the pins 7 and 7 of the links 6 and 6.
It is laid out so that it is above the center of gravity G.

Rollers 8, 8 are provided as sliding parts at the lower end of each frame 2', while groove-type guide holes 9 are bored in the lower part of each link 6 in the longitudinal direction. There is.

Further, the support body 10, which has hooks 4', 4' on the lower part that are engaged with the transaxle assembly 5, has an arcuate guide section centered on the shaft position 11, which is the attachment part of the transaxle assembly 5. It has a rail 12 on which each roller 8 of the frame 2' is slidably engaged.

Further, a pin 13 is protruded near one end of the rail 12 of the support body 10 and is engaged with a guide hole 9 formed in the link 6.

Therefore, even if the transaxle assembly 5 is rotated together with the support 10, the shaft position 11 does not move.

Also, when the support body 10 moves relative to the frame 2', each link 6 is moved relative to the frame 2' by the pin 7.
The hanger 3', which was previously located above the center of gravity G of the transaxle assembly 5, is now located above the new center of gravity G' that has been moved relative to the frame 2'.

The cylinder body 14 is placed between the frame 2' and the support 10 which move relative to each other in this way.
On the zero side, a closed balance cylinder 19 is interposed, in which a rod 16 is pivotally supported by pins 17 and 18 on a bracket 15 provided on the frame 2'.

In the above configuration, the workpiece hoist 1' is suspended by the hanger 3' from a hoist (not shown) provided along the line along which the engine is transported.
When attaching the shaft of transaxle assembly 5 to the engine in this state, first attach hooks 4' and 4' of workpiece hoist 1' to the transaxle.
It is inserted into an engagement hole (not shown) of the assembly 5, pulled up by a hoist, and moved to the vicinity of the engine.

In this state, the workpiece hoist 1' is positioned so that the hanger 3' is located above the center of gravity G of the transaxle assembly 5, as shown in Fig. 1. No moment is applied and it can be hung stably.

When installed on the engine, the transaxle is installed to avoid interference with the engine.
When Ass'y 5 is rotated in the direction of the arrow in FIG. Balance cylinder 19 interposed between body 10 and frame 2'
allows the operator to position the transaxle in the desired position.
Ass'y5 can be stopped.

At this time, since the position of the support body 10 with respect to the frame 2' changes, the link 6 moves from the position shown by the solid line in FIG. Therefore, the transaxle assembly 5 stably stops at the moved position.

Furthermore, since the rail 12 of the support body 10 is formed along an arc centered on the shaft position 11 of the transaxle assembly 5, the shaft position 1
1 does not change with respect to frame 2′, so
To easily assemble an engine by one person without involving heavy work.

After attaching the transaxle assembly 5 to the engine, hook 4' of the workpiece hoist 1],
4' was removed, and the transaxle assembly 5 was sequentially installed on the engine that was being transported again.

In addition, in the case of the workpiece hanger 1' in another embodiment shown in FIGS. 3 and 4, the position of the hanger 3'' of the link 6' provided on the integrally formed frame 2'' and support body 10 is is located above the pivot point with the frame 2'', unlike the above embodiment, and when the transaxle assembly 5 is rotated to the right, the center of gravity G moves to the left side with respect to the frame 2''.
In order to move to G', the hanger 3'' is also moved to the left, contrary to the above embodiment, but the effect,
In terms of function, this embodiment is the same as the embodiment described above.

It goes without saying that the embodiments of this invention are not limited to the above-mentioned embodiments; for example, a pin may be provided on the link and a guide hole that engages with the pin may be provided on the support; Various embodiments can be adopted, such as a slide portion may be provided on the frame and a guide portion may be provided on the frame.

<Effects of the invention> As described above, according to this invention, the load on the worker is basically minimized, the workpiece can be easily moved in a suspended state by tilting, etc. An excellent effect is achieved in that the degree of freedom in changing posture is extremely high.

Further, a sliding part is formed on one of the lower part of the frame and the upper part of the support body having the workpiece, and the locking body and the sliding part that can freely slide the workpiece with respect to the frame are formed, and the other side has a guide part with which the sliding part engages. By providing this, the work of moving the workpiece can be carried out smoothly, and the excellent effect that the operator does not have to perform heavy work is achieved.

Furthermore, a link having a hanger is pivotally supported on the frame, and a guide hole is formed in one of the link and the support to engage with a pin provided on the other, so that the support can be moved relative to the frame. Utilizing this, it is possible to move the position of the hanger installed on the link to follow the movement of the center of gravity of the workpiece, which has the excellent effect of suspending the workpiece in the most stable manner. .

[Brief explanation of the drawing]

1 to 4 show an embodiment of this invention. FIG. 1 is a schematic front view of one embodiment, FIG. 2 is a perspective view of the same, and FIGS. 3 and 4 are respectively the same as in FIG. Second
Front view and perspective view of another embodiment corresponding to the figure, No. 5
The figure is a perspective view of a conventional workpiece hanger. 3', 3''...hanger, 2', 2''...frame,
5...Work, 4'...Hook, 1', 1''...Work hanging tool, 10...Support, 8...Slide part, 12...Guide part, 6, 6'...Link, 13
...Pin, 9...Guide hole.

Claims (1)

[Scope of utility model registration request] In a workpiece suspension structure in which a frame having a hanger for hanging at the upper part is provided with a hook for locking the workpiece at the lower part, the workpiece is supported at either the lower part of the frame or the upper part of the support body having the hook. A slide part is formed to allow the body and the workpiece to slide freely relative to the frame, and a guide part is provided on the other side with which the slide part engages, and a link having a hanger is pivotally supported on the frame. A workpiece hanger structure, characterized in that one of the link and the support is formed with a guide hole that engages with a pin provided on the other.