KR100987805B1

KR100987805B1 - Cable chain for clean room

Info

Publication number: KR100987805B1
Application number: KR1020100006160A
Authority: KR
Inventors: 김경민
Original assignee: 씨피시스템(주)
Priority date: 2010-01-22
Filing date: 2010-01-22
Publication date: 2010-10-18

Abstract

PURPOSE: A cable protecting apparatus for a clean room is provided to prevent dust generation due to the abrasion between components and to maintain a low-noise atmosphere. CONSTITUTION: A cable protecting apparatus for a clean room comprises a front coupling groove(32a), a rear coupling groove(32b), and an arch-shaped joint(50). The front coupling groove is formed on the front surface of a side band(20). The rear coupling groove is formed on the rear surface of the side band. The arch-shaped joint is coupled to the front and rear coupling grooves. A hanging protrusion(58) is formed in the bottom of the arch-shaped joint.

Description

Cable protection device for clean room {Cable chain for clean room}

The present invention relates to a cable protection device, and more particularly to a cable protection device configured to be able to suppress the generation of dust due to the wear of the parts and to be driven with low noise.

Cable protection devices, also known as cable chains, are used in automation lines and the like to protect and guide cables. Such a cable protection device may be used while forming a straight section or a curved section having a constant curvature.

Such a cable protection device is configured such that one link member is continuously coupled to protect and guide the cable in a straight section and a curved section as described above. The link body includes a pair of side bands facing each other at regular intervals, and an upper frame and a lower frame connecting upper and lower portions of the side bends, respectively.

The sidebands of such link bodies are continuously connected to each other to form a cable chain having a predetermined length as a whole. Such a cable chain is operated as having a straight section and a curved section as described above. In addition, when the plurality of link bodies connected to each other are operated while being deformed into straight and curved sections, each side band is in friction within a predetermined range.

This friction of the link body substantially causes abrasion and generates dust. However, in such a cable chain, when dust is generated by wear, it cannot be used under an environment such as a clean room or an environment related to food.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and a main object of the present invention is to provide a cable protection device which can prevent dust generation due to abrasion between parts and can be used even in a clean room.

Another object of the present invention is to provide a cable protection device capable of maintaining low noise.

According to the present invention for achieving the above object, a link body including a pair of side bands facing each other in a state spaced at a predetermined interval, and a frame connecting the upper or lower portion of the side bands to be continuously rotatable A cable protection device to be connected; An arcuate front coupling groove is formed at the front side of the sideband, and an arcuate rear coupling groove is formed at the rear side of the sideband, and an adjacent side is formed by the arc joint being coupled to the front coupling groove and the rear coupling groove. The band is rotatably connected to each other, the arc-shaped joint is characterized in that it can be fixed with each side band in the front coupling groove and the rear coupling groove.

According to an embodiment of the present invention, a locking protrusion is formed at a lower portion of the arc-shaped joint, and the locking protrusion is coupled to a locking protrusion formed at a rear side of an adjacent side band.

According to a preferred embodiment of the present invention, a constant gap is formed between the upper surface of the arc-shaped joint and the bottom surface of the front coupling groove and the rear coupling groove, so that wear by friction does not occur.

According to another embodiment of the present invention, in a state in which the side bands are arranged in a straight line, the front upper part contacts the upper rear part of the adjacent side band, and the lower front part is spaced apart from the rear lower part of the adjacent side band.

According to another embodiment of the present invention, the front end of the arc-shaped joint is formed a front end hook is coupled to the engaging projection formed in the rear coupling groove, the rear end is formed a rear end hook is formed in the front coupling groove Is bound to the group.

According to a further embodiment of the present invention, the rotation angle regulation portion is formed downwardly formed in the lower portion of the arc-shaped joint, the rotation angle regulation portion is the angle of rotation of the side band by contacting the lower back of the adjacent side band It is regulated, and it is comprised so that the maximum rotation angle can be adjusted by adjusting the thickness of the said rotation angle control part.

In addition, according to another embodiment of the present invention, a plurality of protrusions are formed on the upper surface of the arc-shaped joint, thereby preventing wear and dust generation due to surface contact.

According to another embodiment of the present invention, the stopper protruding from the upper surface of the arc-shaped joint is in contact with the stop groove formed on the rear surface of the adjacent side bands before the adjacent side bands contact each other.

According to another embodiment of the present invention, an enlarged front fixing protrusion is formed at the front end of the arc-shaped joint and is coupled to a rear fixing groove formed inside the rear coupling groove, and an extended rear fixing protrusion is formed at the rear end. It is coupled to the front fixing groove formed inside the front coupling groove.

According to the present invention as described above, it can be seen that by using an arc-shaped joint, the adjacent side bands are connected without rotation. By not overlapping side bands in this manner, friction does not occur between them, and dust can be prevented from occurring. In addition, according to the configuration of the arc-joint according to the present invention, the friction between the side band is designed so that the wear and dust are prevented. In addition, according to the present invention, the side bands as well as the noise between the side band and the arc-shaped joint is configured so that the advantage of enabling quiet operation is also expected.

1 is an exemplary view of a cable protection device according to the present invention.
2 is a partially exploded perspective view of a cable protection device according to the present invention.
Figure 3 is a perspective view of the coupling of the side band of the cable protection device according to the present invention.
Figure 4 is an exemplary cross-sectional view of the sideband coupling state according to the present invention.
Figure 5 is a cross-sectional view illustrating a rotation state of the side band according to the present invention.
Figure 6 is an illustration of the coupling state of the sideband of another embodiment of the present invention.
Figure 7 is an illustration of a sideband coupling state of another embodiment of the present invention.
Figure 8 is an illustration of a coupling state of the sideband of another embodiment of the present invention.
Figure 9 is an illustration of a sideband coupling state of another embodiment of the present invention.
10 is a view illustrating a coupling state of a sideband of another embodiment of the present invention.
Figure 11a is an illustration of the coupling state of the sideband of another embodiment of the present invention.
FIG. 11B is a perspective view illustrating an arc joint of the embodiment shown in FIG. 11; FIG.

Next, the present invention will be described in detail with reference to the embodiments shown in the drawings.

1 and 2, in the cable protection device according to the present invention, one link member 10 is continuously coupled and can be used in a straight section or a curved section. The cable protection device shown in FIG. 1 shows a state used for a curved section.

As shown in FIG. 2, the link body 10 constituting the cable protection device according to the present invention includes a pair of side bands 20 facing each other at regular intervals, and an upper end portion of the side bands 20. It is configured to include an upper frame 42 for supporting the connection, and a lower frame 44 for connecting and supporting the lower end of the side band 20. The upper frame 42 and the lower frame 44 are coupled to the side band 20 by, for example, connecting pins Pa and Pb.

The side band 20 has a predetermined interval to enter the cable or the like inside. The side bands 20 facing each other are formed in substantially the same shape or symmetry. And the side bands 20 adjacent to each other are exactly the same shape. By the side band 20 is connected by the upper frame 42 and the lower frame 44 there is formed a predetermined space in which a cable or the like can be guided. The interior of the space may be partitioned by a divider 46 installed in a vertical direction and a separator 48 installed in a horizontal direction.

Next, the side band 20 and the arc-shaped joint 50 according to the present invention will be described with reference to FIG. 3.

The side band 20 of the present invention can form a straight line in a continuously connected state, it is also possible to form a curved section by the rotation of each side band 20. As shown, in a state in which the side bands 20 are connected to each other in a straight line, the front upper part 22a of the side band 20 is formed to be in close contact with each other with the rear upper part 22b of the adjacent side bands. The front lower portion 24a is spaced apart from the rear lower portion 24b of the adjacent side band by a predetermined distance. By this spaced interval, the side band 20 can be rotated.

An arc-shaped front coupling groove 32a is formed in the lower portion of the front side of the side band 20, and an arc-shaped rear coupling groove 32b is formed in the lower portion of the rear surface of the side band 20. When the adjacent side bands 20 are coupled to each other, the front coupling groove 32a and the rear coupling groove 32b are continuous with each other to form an arc-shaped coupling groove 32 of approximately 3/4 of the circle as a whole. This state is clearly shown in FIGS. 3 and 4.

The circular joint 50 coupled to the coupling grooves 32; 32a and 32b is formed in an arc shape in which a portion is cut in a circle. The arc joint 50 has a front end hook 52 formed at the front end and a rear end hook 54 formed at the rear end. The front end hook 52 is formed to be caught by the T-shaped locking protrusion 38 formed inside the rear coupling groove 32b of the side band 20. And the rear hook 54 is to be caught by the T-shaped locking projection 36 formed in the front coupling groove (32a) of the side band (20).

As described above, according to the present invention, the arc-shaped joint 50 includes a rear hook 54 and a rear hooking groove 32b which are caught by the locking protrusion 36 inside the front coupling groove 32a of the side band 20. The front end hook 52 which catches on the latching projection 38 of this at the same time is provided. Therefore, when the circular joint 50 is coupled to the inside of the coupling groove 32, it is possible to firmly support the side bands 20 on both sides. In addition, when the front end hook 52 and the rear end hook 54 are caught by the engaging projections 36 and 38, even when the entire cable protector is moved forward or backward, the coupling relationship between the side bands 20 may be more firmly maintained. It becomes possible.

According to the present invention, a locking projection 58 is formed at the rear end of the arc joint 50. In addition, a protrusion 42 is formed at a position corresponding to a lower portion of the rear coupling groove 32b at the rear side of the side band 20, and a lower protrusion 42a extends downward in the lower portion of the protrusion 42. Is formed. The locking protrusion 58 of the arc-shaped joint 50 is caught by the locking protrusion 42a.

When the connection relationship between the arcuate joint 50 and the side band 20 is summarized as described above, the front end hook 52 and the rear end hook 54 of the arcuate joint 50 are respectively separated from the sideband 20. The primary connection to be caught by the engaging projections (36,38), and the engaging projection 58 is to form a secondary connection state to be caught by the engaging projection (42a). That is, the arc-shaped joint 50 is caught in two places with the adjacent side bands in the state where the rear hook 54 is caught by the catching protrusion 36 at the front end portion of the side band 20. The front hook 52 and the engaging projection 38 is coupled, the other can be said to be a combination of the engaging projection 58 and the engaging projection (42a). Since the adjacent side bands 20 maintain the state in which they are connected by the arc-shaped joint 50 in a double manner, not only a solid connection relationship can be maintained but also an intermediate portion of the arc-shaped joint 50 is formed. Even if cut or broken, the adjacent side band 20 will not be immediately broken, and sufficient follow-up actions such as replacement and repair will be possible.

And the rotation angle control part 53 is extended downward in the lower portion of the arc-shaped joint (50). In the illustrated embodiment, the rotation angle control part 53 is extended downward from the rear end hook 54. The rotation angle regulating portion 53 is able to regulate the maximum rotation angle of the side band 20 by contacting the lower rear portion 24b of the side band 20, for example, the rotation angle regulating portion Thickening the 53's flesh will reduce the angle of rotation.

Next, the operation of the cable protection device of the present invention having the above configuration will be described.

Connection of each link member of the cable protection device according to the present invention connects the above-described sieve band (20) by an arc joint (50). Assembly for the connection is just to couple the arcuate joint 50 to the two side bands 20 on the side. That is, the side bands 20 may be connected to each other by simultaneously inserting the arc-shaped joint 50 into the rear coupling groove 32b and the front coupling groove 32a of the side band 20. Here, since the arc-shaped joint 50 of the present invention is shaped symmetrically from the side, there is an advantage that it can be easily assembled from either side.

And the outline of the state in which the side band 20 is coupled is shown in Figures 4 and 5. FIG. 4 maintains a straight state, and FIG. 5 shows a bent state. In the coupled state, as shown in Figure 4, there is a slight gap between the upper surface of the arc-shaped joint 50 and the lower surface of the fraud front coupling groove (32a) and the rear coupling groove (32b). This interval may be said to prevent friction caused by contact in the process of bending the side band 20.

And as can be seen in Figure 5, the side band 20 is bent at an angle, as the middle portion of the arcuate joint 50 is bent, the side band 20 is rotated at a certain angle. In the state of maintaining the maximum angle of rotation, the angle of rotation control portion 53 is in contact with the lower back 24b of the side band 20. At the same time, it is preferable that the outer surface of the locking projection 58 is in contact with the inner surface of the groove portion 45 formed below the projection portion 42 so that the dual rotation angle can be substantially controlled. Even in this case, the locking projections 58 may be spaced apart from the inner wall of the side band so as not to contact the inner wall of the side band.

Since the circular joint 50 of the present invention has a substantially circular arc shape, it can be rotated in the forward direction as shown in FIG. 5, but is not configured to be rotated in the opposite direction. It can be seen that it is configured to have a sufficient bearing capacity in a straight state as shown. Moreover, the friction between the adjacent side bands 20 as well as the friction between the arcuate joint 50 and the side band 20 at the time of rotation of the side band 20 as described above is configured so that no friction occurs at all. It can also be seen.

Next, another embodiment of the present invention will be described. In the following description of the other embodiments, a portion overlapping with the above description will be omitted and only different components and operations will be described.

First, the embodiment shown in FIG. 6 is different from the above-described embodiment in the fixing structure of the tip portion of the arc-shaped joint 50. That is, a simple annular engaging portion 52a is formed at the distal end of the arc joint 50, and the annular engaging portion 52a is engaged at the inner end of the rear coupling groove 32b of the side band corresponding thereto. The groove 38a is formed.

As can be seen in the present embodiment, the annular engaging portion 52a is an equivalent component to the tip hook 52, and the annular groove 38a is an equivalent component to the engaging protrusion 38. have.

In the embodiment shown in Fig. 7, the configuration of the intermediate arc-shaped portion of the arc-joint 50 is different. That is, it can be seen that the middle portion of the arc joint 50 has a double structure in which the middle is empty. When the arc joint 50 is formed in this way, it is expected that the elastic deformation will be more smooth and sufficient when the side band rotates.

According to the embodiment shown in Fig. 8, a plurality of projections 55 are formed on the outer surface of the arc joint 50. These protrusions are in point contact with the inner surface of the side band 20, the amount of dust generated less than by the surface contact, it will be advantageous in reducing noise.

And according to the embodiment shown in FIG. 9, the stopper 57 is formed in the outer surface of the circular joint 50. As shown in FIG. The stopper 57 comes into contact with the stop groove 49 formed on the rear surface of the side band 20. That is, when the side band 50 is rotated and returned to a straight state, the stopper 57 enters the stop groove 49 and comes into contact immediately before the front and rear surfaces of the side band 20 collide with each other. The noise by the contact of the side bands 20 can be reduced.

According to the embodiment shown in Figure 10, the shape for fixing both ends of the arc-shaped joint 50 and the side band 20 is different from the above embodiment. That is, the front fixing protrusion 57a and the rear fixing protrusion 57b having a circular cross section are formed at both ends of the arc-shaped joint 50. The front fixing protrusion 57a is formed at the front end of the arc joint 50, and has an enlarged cross section than the arc joint 50, and in the illustrated embodiment, it can be seen that it has an arc cross section. . In addition, the rear fixing protrusion 57b is formed to protrude from the rear portion of the arcuate joint 50, and its end portion is enlarged to be fitted into the front fixing groove 36b to be fastened. In addition, in the illustrated embodiment, it can be seen that the cross-sectional shape of the rear fixing protrusion 57b is formed in a circular shape. The side band 20 has a front fixing groove 36b having a shape corresponding to the rear fixing protrusion 57b at its front portion, and a rear fixing groove having a shape corresponding to the front fixing protrusion 57b at its front portion. 38b is formed. Therefore, the front fixing protrusion 57a is fitted into the rear fixing groove 38b and fixed, and the rear fixing protrusion 57b is inserted into the front fixing groove 36b and fixed.

11A and 11B, the arc joint 50 is connected to each other using the connection part 51 so that it may become linear arrangement. In the case of using the arcuate joint 50 of this embodiment, it is a matter of course that a groove in which the connecting portion 51 can be accommodated is formed on the side of the side band 20. The connecting portion 51 is connected to each other while having a width smaller than the width of the arc-shaped joint 50, the side band 50 has a groove having a depth that can accommodate the connecting portion 51 is formed on the side something to do.

As described above, the present invention can be seen that the technical gist of the adjacent side band 20 by using an arc-shaped joint. Within the scope of the basic technical spirit of the present invention, other modifications are possible to those skilled in the art, and the protection scope of the present invention should be interpreted based on the appended claims. Is self explanatory.

20 ..... Sideband 22a ..... Front Top
22b ..... Rear top 24a ..... Front bottom
24b ..... Rear lower part 32 .....
32a ..... front coupling groove 32b ..... rear coupling groove
36 ..... Jamming 38 ..... Jamming
42 ..... projection 42a ..... projection
45 ..... Groove 50 ..... Arc Joint
52 ..... Lead hook 54 ..... Hook
58 ..... Jamming

Claims

A cable protection device comprising a pair of side bands facing each other in a spaced apart state and a link body including a frame connecting the upper or lower portion of the side bands to be rotatable continuously;
An arcuate front coupling groove is formed at the front side of the sideband, and an arcuate rear coupling groove is formed at the rear side of the sideband, and an adjacent side is formed by the arc joint being coupled to the front coupling groove and the rear coupling groove. The band is rotatably connected to each other, the arc-shaped joint is a cable protector, characterized in that can be fixed to each sideband in the front coupling groove and the rear coupling groove.

The cable protection device of claim 1, wherein a locking protrusion (58) is formed at a lower portion of the arc-shaped joint, and the locking protrusion (58) is coupled to a locking protrusion (42a) formed at a rear side of an adjacent side band.

The cable protection device according to claim 1 or 2, wherein a constant gap is formed between an upper surface of the arc-shaped joint and a bottom surface of the front coupling groove and the rear coupling groove.

4. The front upper portion 22a is in contact with the upper rear portion 22b of the adjacent side band, and the lower front portion 24a is the rear side of the adjacent side band. Cable protector spaced apart from the lower part 24b.

The front end of the arc-shaped joint is formed in the front end hook 52 is coupled to the engaging projection 38 formed in the rear coupling groove, the rear end of the rear hook 54 is formed in the front coupling Cable protection device coupled to the engaging projection (36) formed in the groove.

4. The rotating angle regulating portion 53 extends downward in the lower portion of the arc-shaped joint, and the rotating angle regulating portion 53 is in contact with the lower rear portion 24b of the adjacent side band. The angle of rotation of the side band is regulated by the cable protection device that can adjust the maximum angle of rotation by adjusting the thickness of the angle of rotation control.

4. The cable protection device of claim 3, wherein a plurality of protrusions are formed on an upper surface of the arc joint.

4. The cable protecting device according to claim 3, wherein the stopper (57) protruding on the upper surface of the arc-shaped joint contacts the stop groove (49) formed on the rear surface of the adjacent side bands before the adjacent side bands contact each other. .

According to claim 3, wherein the front end of the arc-shaped joint is formed in the front fixed projection (57a) of the enlarged circular cross section is coupled to the rear fixed groove (38b) formed inside the rear coupling groove, the rear portion is enlarged enlarged Cable fixing device is coupled to the front fixing groove (38a) formed in the interior of the front coupling groove is formed with a rear fixed projection (57b) of the circular cross section.