JP2002112442A - Vibration control device for cable bear (registered trademark) - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the traveling unit from receiving vibration caused by bending and traveling the cable bear successively in a bending state close to a limit when moving a traveling unit. SOLUTION: In the vibration control device for a cable bear, the cable bear contains a cable therein. A shock absorbing member is rotatably interposed on the folding-back part of the cable bear.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable carrier having a cable therein.

[0002]

2. Description of the Related Art One example will be described with reference to FIGS.
A guide rail 102 is provided above the base 101, and a movable unit 103 to which a work tool or the like is attached is movably attached to the guide rail 102. One end of a bendable cable carrier 104 composed of a plurality of chain blocks is fixed to the moving unit 103. Inside the cable carrier 104, an electric wire, an air hose, and the like for supplying power to the work tool and the like are inscribed. Most of the cable carrier 104
It is mounted on the upper surface of the base 101. By the way, each block of the cable carrier 104 is composed of a U-shaped main body 105 and a narrow lid 106, and each block is formed in the pin portion 10 formed on the main body 105.
7 are rotatably connected to each other by the engagement of the engagement hole 108 with the engagement hole 7.

[0003]

For example, as shown in FIG. 12, there is no problem at the position where the cable carrier 104 is fully extended (generally, the origin position of the mobile unit 103). When the movement of the guide rail 103 starts (moves to the left in the drawing in this example), the guide rail 102
The area of the cable carrier 104 on the side of the guide rail 102 gradually increases, and accordingly, the weight of the cable carrier 104 on the side of the guide rail 102 gradually increases. When the weight increases, the bent portion 109 of the cable carrier 104 changes from an arc shape to a "
As a result, the weight of the cable carrier 104 is concentrated on the bent portion 109 of the "ku" shape.
Then, when the moving unit 103 is further moved in this state, the cable carrier 104 is bent in a bent state close to the limit.
Are sequentially bent and moved.
Vibration occurs near the moving unit 10
It was transmitted to No. 3 and could not do precise work.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to a cable carrier having a cable therein, wherein a buffer member is rotatably interposed at a folded portion of the cable carrier.

[0005]

With the cushioning member, the arcuate bent state of the folded portion of the cable bear is appropriately maintained. Further, the weight of the folded portion is received by the cushioning member, and vibration is prevented.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One example will be described with reference to FIGS. A guide rail is provided above the base 1, and a moving unit 3 having work tools such as a gripping device, a cutting device, and a coating device is movably attached to the guide rail 2. . The mobile unit 3
Generally, a timing belt mechanism, a ball screw mechanism,
It is moved by a rack and pinion mechanism. And
To the moving unit 3, one end of a bendable cable carrier 4 composed of a plurality of chain blocks substantially similar to those in the prior art is fixed. Inside the cable bear 4, of course, wires, air hoses and the like for supplying power to the work tools and the like are provided. Most of the cable carrier 4 is placed on the upper surface of the base 1.

[0007] Each one constituting the cable carrier 4
The two blocks are basically composed of a U-shaped main body 5 and a narrow lid 6, but in order to withstand the abutting force of a cushioning member described later, a lid Legs 7 for preventing immersion into the inside of 6 are formed at four places. Each block has a pin portion 8 and an engagement hole 9 for connecting the blocks so that they can rotate and bend freely.

A cable carrier 4 between the moving unit 3 and the base 1 is bent in a semicircular arc shape, and a cylindrical buffer member 11 is interposed inside the bent portion 10. . The cushioning member 11 is a cover 6 of the cable carrier 4.
An elastic member 12 made of rubber, urethane foam, or sponge is coated around the cable carrier 4 so as to contact the surface and rotate with the movement of the cable carrier 4, thereby preventing the lid 6 from slipping. However, when the cushioning member 11 itself is formed from a relatively hard rubber-like elastic body, the above-described covering is not necessarily required.

Next, the operation will be described. When the moving unit 3 is moved leftward from the state shown in FIG. 1, the cable carrier 4 (returned portion) on the guide rail 2 side also moves leftward, but at this time, it is interposed in the arc-shaped bent portion 10. The buffer member 11 is also rotated by the cable carrier 4 and moves leftward (see FIG. 2). Therefore,
The arc-shaped bent portion 10 does not extremely bend (for example, a “K” shape) unlike the related art.

Next, when the moving unit 3 is moved rightward to return, the cable carrier 4 (returned portion) on the guide rail 2 side also moves rightward.
The cushioning member 11 interposed in the arc-shaped bent portion 10 also
It is rotated by the cable carrier 4 and retreated rightward. Here, at first glance, it seems that the buffer member is left behind, but since the buffer member is always in contact with the cable carrier and is being rotated, the following state is always maintained. However, in consideration of the rotation between the cushioning member and the cable carrier, it is better to form a slight clearance (a minute gap) in the bent portion. Of course, the upper end and the lower end in the figure of the buffer member are in contact with the cable carrier.

A modified example of the cushioning member will be described with reference to FIGS. The flange 1 is provided on the side surface of the cushioning member 13 of this embodiment.
4 is attached. The flange 14 is installed so as to straddle the cable carrier 4. That is, the cable 14 of the cushioning member 13 is
Is prevented from falling off. Next, a modified example of the cable carrier will be described with reference to FIGS. This is an example in which a flange 16 is formed on a side wall of the cable bear 15. The flange 16 is provided so as to straddle the buffer member 11. Like the previous example, the flange 16 prevents the buffer member 11 from falling off.
In the above-described modification, the buffer member or the cable carrier is formed with a flange to prevent the buffer member from falling off from the cable carrier.However, the buffer member may be formed in a gear shape, and may be meshed with the cable carrier. good.

[0012]

According to the present invention, there is provided a cable carrier having a cable therein, wherein a vibration member is rotatably interposed in a folded portion of the cable carrier, so that vibration is not generated. .

[Brief description of the drawings]

FIG. 1 is an external view of a main part showing an example of the present invention.

FIG. 2 is a sectional view of one block of the cable carrier of FIG. 1;

FIG. 3 is a top view of one block of the cable carrier of FIG. 1;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is an enlarged view of a main part of FIG. 1;

FIG. 6 is a sectional view of FIG. 5;

FIG. 7 is an external view of a main part showing an operation.

FIG. 8 is an enlarged external view of a main part showing a modification of the cushioning member.

FIG. 9 is a sectional view of FIG. 8;

FIG. 10 is an enlarged external view of a main part showing a modified example of the cable carrier.

FIG. 11 is a sectional view of one block of the cable carrier of FIG. 10;

FIG. 12 is an external view of a main part showing a conventional technique.

FIG. 13 is a cross-sectional view showing one block of a conventional cable carrier.

FIG. 14 is a top view of one block of a conventional cable carrier.

FIG. 15 is a side view of FIG.

FIG. 16 is an external view of a main part showing a conventional operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Guide rail 3 Moving unit 4 Cable bear 5 Main body 6 Lid 7 Leg part 8 Pin part 9 Engagement hole 10 Bend part 11 Buffer member 12 Elastic member 13 Buffer member 14 Flange 15 Cable carrier 16 Flange

Claims (1)

[Claims] 1. A vibration isolator for a cable carrier, wherein the cable carrier has a cable therein, and a buffer member is rotatably interposed at a folded portion of the cable carrier.