JPH058015Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a device for reversing a chassis frame of a vehicle.

<Prior art> When assembling an axle, etc. to an automobile chassis frame, the chassis frame, which has been inverted in advance, is set on an assembly workbench, and the axle, etc. is assembled.
Thereafter, the chassis frame is turned over to its normal orientation and transported to the next process.

As shown in Fig. 3, as a means of reversing the chassis frame on the assembly workbench to its normal orientation, a chain C is passed around the chassis frame F, and this chain C is moved to a chain block using an electric hoist. B, lift the chassis frame F vertically on the assembly workbench, have the worker push in the chassis frame and turn it over, then lower the chain block B and place it on the assembly workbench.
He was untying the chain he had wrapped around him.

<Problems to be solved by the invention> In the conventional reversing work described above, only the work of lifting the chassis frame on the assembly workbench and lowering it is mechanically automated, and the reversing of the chassis frame is done by the worker. It is a manual process, and there are problems with safety and labor saving. Also, the chassis frame may be damaged by the chain being wrapped around it.

<Means for Solving the Problems> The present invention provides a reversing device that solves the above-mentioned conventional problems, and is characterized by a rectangular shape at one end of the support base of the chassis frame. A frame body is pivotally supported so as to be tiltable forward and backward, a sprocket is rotatably supported on the upper end of this frame body, a chain is routed around the sprocket, and one end of the chain is guided vertically by the frame body and detached. A weight is attached to the other end with the frame as a guide, a cylinder that tilts the frame back and forth about a support shaft, and a motor that rotationally drives the sprocket. .

<Operation> The hook is moved upward by the lower end, one end of the chassis frame on the support base is latched and lifted by the hook, the frame body is tilted forward toward the top of the support base, and the hook is raised. By moving downward, the chassis frame is fully automatically reversed.

<Example> Hereinafter, an example of the present invention will be described based on FIGS. 1 and 2. Reference numeral 1 denotes a support stand, on which the chassis frame F transported by the transport truck is placed. A rectangular frame 2 is rotatably supported at one end of the support base 1 by a support shaft 3. A rotating shaft 5 whose axis is parallel to the support shaft 3 is attached to the upper end of the frame 2, and at least one pair of sprockets 4 are fixed to the rotating shaft 5 with a distance between the left and right axes. A chain 12 is wound around the sprocket 4, and one end of the chain 12 is connected to a connecting plate 6, and the other end is connected to a weight 9. Hooks 7 are provided at both left and right ends of the connecting plate 6. A recessed groove 8 is provided on the back surface of the hook 7, and is removably guided by the vertical member of the frame 2. The weight 9 is also guided by the vertical member of the frame 2. That is, the hook 7 and the weight 9 are suspended by the chain 12 and the sprocket 4 in a hanging manner.

Further, a cylinder 10 that tilts the frame 2 back and forth around the support shaft 3 is installed on the support stand 1 or the floor,
A motor 11 that rotationally drives the rotating shaft 5 is installed at the lower end of the frame 2. From the motor 11 to the rotating shaft 5
The power transmission to is constituted by sprockets 13a, 13b and endless chain 14.

Next, the operation of the present invention will be explained. When transporting the chassis frame F and assembling the axle, etc., the frame body 2 is placed on the support base 1 as shown in the position shown in Fig. 2 A.
The hook 7 is positioned at a rearward angle relative to the frame body 2, and the hook 7 is lowered to the lower end of the frame body 2.

When the assembly of the axle and the like is completed on the support stand 1 and the chassis frame F is to be reversed to the normal orientation before being transported to the next process, the motor 11 is started and the hook 7 is moved upward. In this case, the hook 7 is guided by the rearwardly tilted frame body 2 and rises, hooking one side end (the right end in FIG. 2) of the chassis frame F on the support stand 1 and lifting it up. When the hook 7 rises to the upper end of the frame 2, the chassis frame F is raised substantially parallel to the frame 2, and the lower end of the chassis frame F abuts one side end on the support base 1. At this time, an anti-back piece (not shown) protrudes from above the support base 1 and holds down the lower end of the chassis frame F to maintain the standing posture.

Next, by operating the cylinder 10, the frame body 2 is tilted forward with respect to the support base 1, as shown in the position shown in FIG.
Then, the motor 11 is reversely rotated to move the hook 7 downward. This downward movement of the hook causes the chassis frame F to pivot downward using the lower end as a fulcrum. Therefore, the concave groove 8 of the hook 7 is detached from the frame 2, and one end of the chassis frame F on the side hooked by the hook 7 is lowered onto the support base 1, so that the chassis frame F is horizontal. At this point, it is completely inverted and placed on the support stand 1. Furthermore, only the hook 7 moves downward, and the hook 7 is removed from the chassis frame F. The disengaged hook 7 is moved to the rising end again, the frame body 2 is turned backward to the A position, and then the hook 7 is moved to the descending end to complete the reversal cycle.

<Effects of the invention> As described above, according to the invention, the simple structure of the frame body pivotably supported on the support base so as to be tiltable back and forth, and the hook provided on the frame body so as to be movable up and down, enables Since all of the steps of raising the chassis frame, changing the inversion posture, and inverting and lowering it onto the support stand are performed automatically, the safety of the work is ensured and the efficiency of the inversion work is improved. There is also the advantage that damage to the chassis frame caused by the chain, which is conventional, is eliminated.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the device of the present invention, FIG. 2 is a side view illustrating the operation of the device of the present invention, and FIG. 3 is a side view of the conventional device. 1... Support stand, 2... Frame, 4... Sprocket, 7... Hook, 9... Weight, 10... Cylinder, 11... Motor, 12... Chain.

Claims (1)

[Scope of utility model registration request] A rectangular frame body is pivotally supported on one side end of the support base of the chassis frame so that it can be tilted forward and backward, a sprocket is rotatably supported on the upper end of this frame body, and a chain is hung around the sprocket, and one end of this chain is rotatably supported. A hook that is guided in the vertical direction and released from the frame body is attached to the frame body, a weight that is guided by the frame body is attached to the other end, and a cylinder that tilts the frame body back and forth about a support shaft, and the sprocket. A chassis frame reversing device comprising: a motor for rotationally driving the chassis frame;