JPH0735151Y2 - Cable retainer - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention safely holds cables such as signal lines and hydraulic cables passed between a swivel part and a fixed part in a machine having a swivel part such as a horizontal joint type industrial robot. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, as a means for preventing disconnection and breakage of these cables, the cables passed between a swivel part and a fixed part are collectively inserted into a supporting member to which a supporting block made of a pyramidal metal is joined. Then covered.

[0003]

However, in the above-mentioned conventional supporting device, the supporting device is apt to hang down due to the weight of metal. In addition, when the turning operation of the turning portion is performed, the heavy supporting device is also turned, which makes it difficult to operate smoothly and lightly, requires a wasteful driving force, and is an obstacle to the turning operation.

It is an object of the present invention to solve the above-mentioned drawbacks and to provide a device for holding a cable smoothly and lightly without interfering with the turning operation of the turning portion.

[0005]

In order to achieve the above object, the present invention provides a plurality of blocks, each of which is made of plastic, has a vertically opening, and has a rectangular upper portion with a central step portion interposed therebetween. It is formed in a substantially rectangular casing having a side wall and a lower side wall, the upper side wall has a large diameter that can be fitted with the lower side wall, and the upper side wall is provided with a pair of side faces protruding in a mountain shape. On the other side of the lower side wall, a pair of side surfaces orthogonal to the side surface where the fitting hole of the upper side wall is formed is provided with protrusions that can be fitted into the fitting hole, and the central step is formed from both ends of the lower edge. A plurality of stoppers are provided so that they can come into contact with and separate from each other, and the protrusions on the lower side wall of the block having the same shape are fitted into the fitting holes on the upper side wall of the block to rotatably connect both blocks. Blocks are connected to each other, and each block can be bent back and forth and left and right alternately. It is configured to form a hollow portion of the mold tube.

[0006]

Since the projection on the upper side wall surface and the fitting hole on the lower side wall surface of each block are provided with a 90-degree phase difference, the block is fitted into the fitting hole of the next block. ,
If you connect multiple blocks one after another, the linked books will be able to rotate alternately back and forth and left and right,
The cable inserted into the rectangular tubular hollow portion formed by the connected blocks is reliably protected by the holding device without hindering the turning operation, and the cable can be prevented from being broken or damaged.

[0007]

EXAMPLES Examples will be described with reference to the drawings.

FIG. 1 is a perspective view of a holding device according to the present invention. The holding device is composed of a plurality of blocks 1, 1 ... Connected to each other, and every other block 1 is freely rotatable in a direction orthogonal to the front-rear direction or the left-right direction. Therefore, as a whole holding device, a hose for robot control,
By covering the cables, etc., whatever the turning motion of the turning part of the machine tool is, it can be universally turned back and forth, left and right to follow smoothly.

As shown in FIG. 2, the block 1 constituting the holding device is made of plastic having an opening at the top and bottom, and is formed into a substantially rectangular casing having a lower side wall 2 and an upper side wall 3 with a step 15 at the center sandwiched therebetween. There is.

Opposing side surfaces 4 and 6 of the lower side wall 2 are formed in a semi-cylindrical shape having an arcuate surface in the vertical direction, and a pair of opposing side surfaces 5 and 7 orthogonal to this are flat rectangular surfaces. A circular protrusion 8 is provided at each of the centers, and stoppers 9 are provided so as to protrude toward both ends of lower edges of the side surfaces 5 and 7 on which the circular protrusion 8 is provided. This stopper 9 is a block 1
Is to contact the inner upper edge of the lower side wall 2 to stop the rotation of each block 1 at a constant angle.

The upper side wall 3 is a rectangular side surface 4 of the lower side wall 2.
Square side 1 that is larger than 5, 6 and 7 by the thickness of the lower side wall
0, 11, 12, and 13 are formed. Of these, the pair of facing side surfaces 10 and 12 located above the side surfaces 5 and 7 having the projections 8 on the lower side wall 2 are formed in a flat rectangular shape,
Another pair of opposite sides orthogonal to this, that is, the side surfaces 11 and 13 located above the semi-cylindrical side surfaces 4 and 6 of the lower side wall 2 are formed in a substantially pentagonal shape with the upper edge protruding in a mountain shape, and are formed in the center. A circular fitting hole 14 having a slightly larger diameter for fitting the circular protrusion 8 is formed. In this embodiment, a through hole is used, but the height of the protrusion 8 may be reduced so that the fitting hole 14 may be a circular recess instead of the through hole. Good.

In order to facilitate the fitting of the projection 8 on the lower side wall 2, the upper inner surface of the fitting hole 14 on the side surfaces 10 and 12 of the upper side wall 3 is provided with an inclined surface 16 so as to become thinner toward the tip. Form.

Each block 1 having such a configuration is
In the pair of fitting holes 14, 14 facing each other on the upper side wall 3,
A pair of opposing projections 8, 8 on the lower side surface 2 of another block 1 having the same shape as this are fitted into each other. At this time, since the inclined surface 16 is formed on the upper end of the upper side wall 3, the protrusion 8 of the lower side wall 2 is guided by the inclined surface 16 and spreads against the elasticity of the side surfaces 10 and 12. Are fitted into the fitting hole 14, and the blocks 1 and 1 are rotatably connected to each other about the fitting hole 14 and the protrusion 8. The rotation of the blocks 1 and 1 is made by a stopper 9 protruding from the lower end of the lower side wall 2. Rotate left and right until it contacts the central step 15. When a plurality of the blocks 1 are sequentially connected, the blocks 1 are alternately rotated 90 degrees out of phase, and the blocks 1 are rotatably connected in the front-rear direction and the left-right direction, and the block-shaped hollow portion 17 is formed. A cable holding device having a predetermined length can be manufactured (FIG. 3).

Therefore, the turning portion 18 and the fixing portion 19 of the machine tool are provided in the hollow rectangular hollow portion 17 of the cable holding device.
Insert the cable 20 passed between the two. by this,
When the revolving unit 18 starts the revolving operation, each block 1 freely rotates back and forth and left and right to follow the revolving operation, and protects the cable 20 without disturbing the revolving operation of the revolving unit 18 (FIG. 4).

[0015]

As described above, according to the present invention, the plastic block is combined and the cable is held in the hollow portion which can be alternately rotated forward, backward, leftward and rightward. It operates lightly without emitting, is lightweight, and can hold the cable without disturbing the turning operation of the turning portion and without cutting or damaging the cable. Further, since the stopper attached to the lower side wall abuts on the central step portion to regulate the rotation, the holding device does not droop downward much. Moreover, by changing the number of blocks to be combined, you can freely adjust the length to match the length of the cable,
An effect is obtained that the hollow portions can be covered without sagging.

[Brief description of drawings]

FIG. 1 is a perspective view of a holding device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a combined state of blocks.

FIG. 3 is a cross-sectional view showing a combined state of blocks.

FIG. 4 is a perspective view of a machine tool on which the device according to the embodiment of the present invention is mounted.

[Explanation of symbols]

 1 Block 2 Lower Side Wall 3 Upper Side Wall 8 Protrusion 9 Stopper 14 Fitting Hole 15 Center Step 17 Hollow Part

Claims (1)

[Scope of utility model registration request] 1. The plurality of blocks are each made of plastic and are formed in a substantially rectangular casing shape having an upper side wall and a lower side wall that are vertically opened and sandwich a central step, and have a rectangular upper side wall and a lower side wall, respectively. The upper side wall has a large diameter capable of fitting with the lower side wall, and the upper side wall is provided with a pair of side faces protruding in a mountain shape, and the lower side wall is provided with a fitting hole for the upper side wall. Protrusions that can be fitted into the fitting holes are provided on a pair of side faces that are orthogonal to the side faces on which the stoppers are provided, and stoppers that are releasably in contact with the central step portion are provided from both ends of the lower edge. Fit the projections on the lower side wall of the same block into the fitting holes on the upper side wall of the block, and connect the blocks so that both blocks can rotate freely. A cable characterized by forming a bendable rectangular tubular hollow portion Holding device.