JP2023168396A - cable cover - Google Patents

Abstract

To provide a highly versatile cable cover which securely holds a cable in place while ensuring a minimum curvature radius of the cable.SOLUTION: A cable cover includes a semicircle part having a semi-circular shape viewed from above, and a first fan-shaped part and a second fan-shaped part, each having a fan-shaped shape viewed from above. A side surface of a circumferential part of the semicircle part faces a side surface of a circumferential part of the first fan-shaped part. A side surface of a circumferential part of the semicircle part faces a side surface of a circumferential part of the second fan-shaped part. The cable cover has grooves at the circumferential parts of two facing side surfaces which can hold a portion of a cable, bend and hold the cable, and limit drawing direction of the cable.SELECTED DRAWING: Figure 1

Description

The present invention relates to a technique for fixing cables.

When a certain type of device is installed, a cable and an internal unit are connected inside the device using a connector or the like, and the cable is pulled out to the outside of the device and connected to another device or an external unit. In this kind of implementation, when an external pulling or pushing force is applied to the cable pulled out to the outside, the external force propagates to the connection between the cable and the internal unit inside the device, causing the connection to become disconnected or There was a problem that damage occurred. Therefore, in order to prevent the external force on the cable pulled out to the outside of the device from propagating to the connection between the cable and the internal unit, the middle of the cable is fixed inside the device, and one end of the fixed cable is May be connected to the unit. At this time, for reasons such as ease of mounting, the cable is often fixed by bending and fixing the cable inside the device.

An example of a technique for fixing a cable is disclosed in Patent Document 1. The cord holder 3 described in Patent Document 1 has a C-shaped outer panel 3a and a center core 3b formed inside the outer panel 3a. The power cord 6 is attached in a meandering manner in a groove between the outer panel 3a and the center core 3b. The cord holder 3 is integrally formed with the mounting piece 21. The antenna terminal plate 2 has a mounting piece 21 on the edge. As a result of the above configuration, the cord holder 3 described in Patent Document 1 can be easily attached.

Another example of a technique for fixing a cable is disclosed in Patent Document 2. The cable fixture 100 described in Patent Document 2 includes a cylindrical body 101 for wrapping a cable 120, a lid 102 that closes the upper end of the body 101, a connecting convex portion 103, and a collar 104. have The connecting convex portion 103 is fixed to the lid portion 102 and protrudes downward from the lower end of the body portion 101 . The collar 104 extends radially outward from the upper end of the body 101 . The lid portion 102 has a connecting hole portion 107 in which a hole for connecting with a connecting convex portion 103 of another cable fixture 100 is formed. As a result of the above configuration, the cable fixture 100 described in Patent Document 2 accommodates the cable while preventing excessive force from being applied to the cable 120.

Yet another example of a technique for fixing cables is disclosed in Patent Document 3. In the cable fixing structure described in Patent Document 3, a boss 3 around which a cable 5 is wound is provided near a cable outlet 2 of a lower case 1 of a device housing. A cable accommodating portion 6 having an accommodating width wider than the diameter of the cable 5 is formed between the boss 3 and the rib 4 facing the boss 3. Then, the wound portion of the cable 5 is accommodated in the cable accommodating portion 6. Further, a plurality of protrusions 3a and 4a are provided on the outer peripheral surface of the boss 3 and the inner peripheral surface of the rib 4, respectively, thereby imparting resistance to the cable 5 against external cable pulling force and cable pushing force. As a result of the above configuration, the cable fixing structure described in Patent Document 3 maintains the fixed state of the cable 5 while suppressing breakage defects due to excessive bending of the cable 5 and damage to the sheathing of the cable 5.

Utility Model Publication No. 62-186481 JP2019-013065A Japanese Patent Application Publication No. 11-075315

However, in the technique described in Patent Document 1, the direction in which the power cord 6 is pulled out from the cord holder 3 and the direction in which the power cord 6 is stretched do not necessarily match. Therefore, when the power cord 6 is bent and fixed inside the device, there is a problem that the minimum radius of curvature of the cable is not guaranteed and the cable is easily damaged. In the following description, the minimum radius of curvature of a cable is the minimum radius of curvature of a curved line (including a straight line) in a cable arranged in a curved line (including a straight line). Furthermore, "guaranteeing the minimum radius of curvature" means ensuring that the radius of curvature of the curve is equal to or greater than the minimum radius of curvature.

Furthermore, in the technique described in Patent Document 2, since the cable fixture 100 does not restrict the extending direction of the cable 120 wound around the trunk 101 of the cable 120, there is a problem that the cable 120 easily comes off from the cable fixture 100. there were. In the following description, it is assumed that the direction in which the cable is stretched is the direction in which both ends of the cable are stretched when viewed from the location where the cable is fixed. In other words, even if the cable is fixed in a straight line, the stretching direction of one end (for example, the stretching direction in a certain planar coordinate system is 0 degrees) and the stretching direction of the other end (for example, the stretching direction in that plane coordinate system is 180 degrees). ) shall be different.

In addition, in the technology described in Patent Document 3, the cable fixing structure is formed integrally with the lower case 1 of the device housing, so it is necessary to prepare a cable fixing structure for each direction in which the cable 5 extends (instead of having versatility). There was a problem with this (low).

The present invention has been made in view of the above-mentioned problems, and its main object is to provide a highly versatile cable cover that securely fixes a cable while guaranteeing the minimum radius of curvature of the cable.

In one aspect of the present invention, the cable cover sandwiches a portion of the cable between two opposing side surfaces that are substantially parallel to each other, so that the cable cover extends along each of at least two predetermined paths having a radius of curvature equal to or greater than a predetermined value. It includes a groove that can bend and hold the cable and limit the direction in which the cable extends.

According to the present invention, it is possible to provide a highly versatile cable cover that securely fixes a cable while guaranteeing the minimum radius of curvature of the cable.

It is a two-sided view showing an example of the structure of the cable cover in a 1st embodiment of the present invention. It is a perspective view showing an example of composition of a cable cover in a 2nd embodiment of the present invention. It is a perspective view showing an example of composition of a cable cover in a 2nd embodiment of the present invention. It is a perspective view which shows an example of the assembly operation of the cable cover in 2nd Embodiment of this invention. It is a perspective view which shows an example of the assembly operation of the cable cover in 2nd Embodiment of this invention. It is a perspective view which shows an example of the assembly operation of the cable cover in 2nd Embodiment of this invention. It is a perspective view which shows an example of the assembly operation of the cable cover in 2nd Embodiment of this invention. It is a perspective view which shows an example of the assembly operation of the cable cover in 2nd Embodiment of this invention. It is a perspective view which shows an example of the assembly operation of the cable cover in 2nd Embodiment of this invention. It is a top view which shows an example of the structure of the cable cover in 2nd Embodiment of this invention. It is a sectional view showing an example of composition of a cable cover in a 2nd embodiment of the present invention. It is a sectional view showing an example of composition of a cable cover in a 2nd embodiment of the present invention. It is a sectional view showing a modification of a cable cover in a 2nd embodiment of the present invention. It is a perspective view showing an example of the composition of the cable cover in a 2nd embodiment of the present invention.

Embodiments of the present invention will be described in detail below with reference to the drawings. It should be noted that in all the drawings, the same components are designated by the same reference numerals, and the description thereof will be omitted as appropriate.
(First embodiment)
A first embodiment, which is the basis of each embodiment of the present invention, will be described.

The configuration in this embodiment will be explained.

FIG. 1 is a two-sided view showing an example of the configuration of a cable cover 100 according to the first embodiment of the present invention. In the figures after FIG. 1 and the following description, the direction in which the cable cover is installed is an example, and the direction in which the cable cover is actually installed may be any direction. In the figures after Figure 1 and the explanation that follows, when viewed from a certain direction, the width (left and right) direction of the cable cover is indicated by "X", the depth (front and back) direction is indicated by "Y", and the height (up and down) ) direction is indicated by "Z". That is, the X direction, Y direction, and Z direction are directions orthogonal to each other. In each of the X direction, Y direction, and Z direction, the right direction, the back direction, and the upward direction are referred to as "positive directions," and the left direction, the front direction, and the downward direction are referred to as "negative directions." In the following explanation, the positive side in the X direction is referred to as the "X+" side, the negative side in the X direction is referred to as the "X-" side, the positive side in the Y direction is referred to as the "Y+" side, and the positive side in the Y direction is referred to as the "X-" side. The negative direction side will also be referred to as the "Y-" side, the positive direction side in the Z direction as the "Z+" side, and the negative direction side in the Z direction as the "Z-" side. In FIG. 1, the left side shows a top view (XY plane view) as seen from the Z+ side, and the right side shows a side view (YZ plane view) as seen from the X+ side.

Cable cover 100 includes a groove 110.

The groove portion 110 allows the cable 200 to be guided along each of at least two predetermined paths (for example, paths 410 and 420) by sandwiching a portion of the cable 200 between two side surfaces 170 that face each other in substantially parallel. It can be bent and held. Further, the groove portion 110 can restrict the direction in which the cable 200 extends along each of at least two predetermined paths. Here, it is assumed that the radius of curvature of each route is greater than or equal to a predetermined value. In the following description, the minimum radius of curvature of a cable or route is the minimum radius of curvature of a curved (including straight) cable or route. It is also assumed that the minimum radius of curvature of the cable or route is not infinite (the cable or route is not entirely straight). Furthermore, in the following description, the extending direction of the cable or route is assumed to be the extending direction of both ends of the cable or route as viewed from the location where the cable is fixed. That is, even if the cable or route is straight, the stretching direction at one end (for example, the stretching direction is 0 degrees in a certain plane coordinate system) and the stretching direction at the other end (for example, the stretching direction in the plane coordinate system is 180 degrees). ) shall be different.

In FIG. 1, for example, the groove 110 is a plate parallel to the XY plane (thinly shaded area in the side view) that can hold the cable 200 along either the path 410 or 420 on the XY plane. ) and has a depth in the Z direction (thinly shaded portion in the top view). Further, in FIG. 1, for example, the route 410 is a route that is bent at the center to the X+ side and extends to the Y- side and the Y+ side, and the route 420 is bent at the center and is extended to the Y- side and the X+ side. It is a route. Note that when the path 410 bends in the middle, the cable 200 is bent by the groove 110 due to the elasticity of the cable 200 and the frictional force between the cable 200 and the two side surfaces 170 of the groove 110 that face each other in substantially parallel. It is firmly clamped.

As described above, in the cable cover 100 of the present embodiment, the groove portion 110 sandwiches a portion of the cable 200 between the two side surfaces 170 that face each other in substantially parallel manner, so that the cable 200 can be guided along a predetermined path. The cable 200 is bent and held, and the extending direction of the cable 200 is limited. The cable 200 usually has elasticity. Therefore, even if an external force that pushes or pulls the cable 200 is applied, the cable 200 is unlikely to deviate from the predetermined path, and the radius of curvature of the cable is unlikely to change. Furthermore, in the cable cover 100, the cable 200 is held between the two side surfaces 170 of the groove portion 110 that face each other in substantially parallel, so that the cable 200 does not easily come off from the cable cover 100 even if an external force pushing or pulling the cable 200 is applied. Further, in the cable cover 100, one cable cover 100 can hold the cable 200 for at least two routes. Therefore, the cable cover 100 of this embodiment has the effect of being able to provide a highly versatile cable cover that securely fixes the cable while guaranteeing the minimum radius of curvature of the cable.

Note that the cable cover 100 may further include a fixing part (not shown; see the second embodiment). The fixing part fixes the groove part 110 to the outside of the cable cover 100 (for example, to the housing of the device). The fixing portion may be, for example, a protrusion that is locked into a hole formed on the outside of the cable cover 100. Alternatively, the fixing portion may be, for example, a screw that is screwed into a screw hole formed on the outside of the cable cover 100.

Further, the cable 200 may be locked to the cable cover 100 by bundling the cable 200 with a bundling band (not shown) at a position adjacent to the groove 110 from the outside. In FIG. 1, the positions adjacent to the groove portion 110 from the outside are, for example, a position adjacent to the Y- side of the lead-out portion of the cable 200 on the Y- side, and a position adjacent to the Y+ side of the lead-out portion of the cable 200 on the Y+ side. It is. Alternatively, in FIG. 1, the position adjacent to the groove 110 from the outside is, for example, a position adjacent to the Y- side of the lead-out portion of the cable 200 on the Y- side, and a position adjacent to the This is the position where

Further, the cable 200 may be held in the cable cover 100 by the frictional force between the two side surfaces 170 of the groove portion 110 that are opposed to each other and are substantially parallel to each other.

Furthermore, protrusions (not shown; see the second embodiment) that press the cable 200 are formed on two side surfaces 170 of the groove 110 that are substantially parallel to each other and face each other, and the cable 200 is pushed by the frictional force between the cable 200 and the protrusions. It may be held by the cover 100.

Further, the stretching directions at both ends of each path may differ from each other by, for example, 90 degrees, 180 degrees, or 270 degrees.
(Second embodiment)
A second embodiment of the present invention based on the first embodiment of the present invention will be described. The cable cover in this embodiment can hold the cable along each of six predetermined routes.

The configuration in this embodiment will be explained.

2 and 3 are perspective views showing an example of the configuration of the cable cover 105 in the second embodiment of the present invention. FIG. 2 is a perspective view seen from the Z+ side, and FIG. 3 is a perspective view seen from the Z- side.

Cable cover 105 includes a groove portion 115 and a fixing portion 125.

The groove portion 115 bends and holds the cable 200 along a plurality of paths. The groove portion 115 includes a core portion 135, a cover portion 145, and four drawer portions 155.

The core portion 135 is in contact with the cable 200 at its outer periphery, which has a substantially cylindrical shape with a radius of curvature greater than or equal to a predetermined value.

The cover portion 145 is in contact with the cable 200 at its inner circumference, which has a substantially cylindrical shape with a radius of curvature greater than or equal to a predetermined value. The core portion 135 and the cover portion 145 are connected on the Z+ side by a plane parallel to the XY plane.

The pull-out portion 155 can pull out the cable 200 from the inside of the cover portion 145 to the outside.

The fixing portion 125 fixes the groove portion 115 to the base plate 305. The fixing portion 125 is a protrusion that is locked into a hole 315 formed in the base plate 305. In FIGS. 2 and 3, four protrusions that are engaged with four holes 315 are illustrated.

The groove portion 115 is configured to sandwich a portion of the cable 200 between two side surfaces 175 (the side surfaces 175 of the core portion 135, the cover portion 145, or the pull-out portion 155) that face each other substantially parallel to each other, thereby allowing each of the six predetermined routes to be It is possible to bend and hold the cable 200 along the . In FIGS. 2 and 3, the six predetermined routes are a route extending to the Y- side and the Y+ side (referred to as route Y-/Y+; the same applies hereinafter), route Y-/X+, route Y-/X-, route X-/X+, path X-/Y+, and path X+/Y+. 2 and 3 illustrate the placement of cable 200 along path Y-/Y+. In FIGS. 2 and 3, the stretching directions at both ends of each path differ from each other by 90 degrees, 180 degrees, or 270 degrees. Furthermore, the groove portion 115 can restrict the direction in which the cable 200 extends along each of the six predetermined routes. In FIGS. 2 and 3, the stretching directions of the six predetermined paths are limited to the Y-direction, the Y+ direction, the X-direction, or the X+ direction. Note that the minimum radius of curvature of each path corresponds to the smallest radius of curvature of the surface where the cable 200 contacts the core portion 135, the cover portion 145, or the pull-out portion 155. In FIGS. 2 and 3, the groove 115 has a depth in the Z direction formed in a plate parallel to the XY plane and capable of holding the cable 200 along any of six paths on the XY plane. It is a groove with a Further, in FIGS. 2 and 3, each path is bent along the outer periphery of the core portion 135 and extends in each direction along the inner periphery of the cover portion 145 and the drawer portion 155.

The operation in this embodiment will be explained.

4 to 9 are perspective views showing the assembly operation of the cable cover 105 in the second embodiment of the present invention. 4, 6, and 8 are perspective views seen from the Z+ side, and FIGS. 5, 7, and 9 are perspective views seen from the Z− side. 4 and 5 show the state before the cable 200 is fitted into the cable cover 105. FIG. 6 and 7 show the state after the cable 200 is fitted to the cable cover 105 and before the cable cover 105 is fitted to the base plate 305. FIG. 8 and 9 show the state after the cable cover 105 is fitted to the base plate 305. FIG.

First, as shown in FIGS. 4 to 7, the cable 200 is fitted into the groove 115 of the cable cover 105 along the selected path.

Next, as shown in FIGS. 6 to 9, the four protrusions of the cable cover 105 are fitted into the four holes 315 of the base plate 305.

Details of the state in which the cable cover 105 holds the cable 200 along the path Y-/Y+ will be described.

FIG. 10 is a top view showing an example of the configuration of the cable cover 105 in the second embodiment of the present invention. FIG. 10 shows the state after the cable 200 and base plate 305 are fitted into the cable cover 105.

FIG. 11 is a sectional view showing an example of the configuration of the cable cover 105 in the second embodiment of the present invention. FIG. 11 shows a cross-sectional view taken along the line AA in FIG. As shown in FIG. 11, the cable 200 can be pulled out from the cable cover 105 at the pull-out portion 155. Further, movement of the cable 200 in the Z+ direction is restricted by a plane parallel to the XY plane that connects the core portion 135 and the cover portion 145.

FIG. 12 is a sectional view showing an example of the configuration of the cable cover 105 in the second embodiment of the present invention. FIG. 12 shows a sectional view taken along the line BB in FIG. As shown in FIG. 12, the groove portion 115 holds a portion of the cable 200 between two side surfaces 175 (the core portion 135 and the side surfaces 175 of the cover portion 145) that face each other substantially parallel. Further, movement of the cable 200 in the Z+ direction is restricted by a plane parallel to the XY plane that connects the core portion 135 and the cover portion 145.

As described above, in the cable cover 105 of the present embodiment, the groove portion 115 holds a part of the cable 200 between the two side surfaces 175 that face each other substantially parallel to each other, so that the cable 200 can be guided along a predetermined path. The cable 200 is bent and held, and the extending direction of the cable 200 is limited. The cable 200 usually has elasticity. Therefore, even if an external force that pushes or pulls the cable 200 is applied, the cable 200 is unlikely to deviate from the predetermined path, and the radius of curvature of the cable is unlikely to change. Furthermore, in the cable cover 105, the cable 200 is held between the two side surfaces 175 of the groove portion 115 that face each other substantially parallel to each other, so that the cable 200 does not easily come off from the cable cover 105 even if an external force that pushes or pulls the cable 200 is applied. Furthermore, one cable cover 105 can hold the cables 200 along six routes. Therefore, the cable cover 105 of this embodiment has the effect of being able to provide a highly versatile cable cover that securely fixes the cable while guaranteeing the minimum radius of curvature of the cable.

A modification of this embodiment will be described.

FIG. 13 is a sectional view showing a modification of the cable cover 105 in the second embodiment of the present invention. FIG. 13 shows a cross-sectional view in a section parallel to the XY plane.

As shown in FIG. 13, in the cable cover 106 of this modification, protrusions 166 for pressing the cable 200 are formed on two side surfaces 175 of the groove portion 115 that are substantially parallel to each other and face each other. As a result, the cable cover 106 of this modification can hold the cable 200 more firmly due to the frictional force between the cable cover 106 and the protrusion 166. In FIG. 13, details are illustrated for route Y-/Y+, but the same applies to other routes.

FIG. 14 is a perspective view (top view) showing an example of the configuration of the cable cover 105 in the second embodiment of the present invention. FIG. 14 shows an example of the configuration of the device 345 including the cable cover 105.

As shown in FIG. 14, the cable 200 is connected to an internal unit 325 installed on the base plate 305 inside the device 345 via a connector 335. The cable 200 is held along the path Y+/Y- by a cable cover 105 installed on the base plate 305. It is also easy to modify the cable cover 105 to hold the cable 200 along the path Y+/X-, the path Y+/X+, or the like.

The present invention has been exemplified above using the above-described embodiments and modifications thereof. However, the technical scope of the present invention is not limited to the range described in each of the above-described embodiments and modifications thereof. It will be apparent to those skilled in the art that various changes and improvements can be made to such embodiments. In such a case, new embodiments with such changes or improvements may also be included within the technical scope of the present invention. This is clear from the matters stated in the claims.

INDUSTRIAL APPLICABILITY The present invention can be used in applications where devices or internal units of devices are connected to each other.

100, 105, 106 cable cover 110, 115 groove 125 fixed part 135 core 145 cover 155 drawer 166 protrusion 170, 175 side 200 cable 305 base plate 315 hole 325 internal unit 335 connector 345 device 410, 420 route

Claims (3)

a semicircular part having a semicircular shape when viewed from the top;
comprising a first fan-shaped part and a second fan-shaped part each having a fan shape when viewed from the top;
A side surface of a circumferential portion of the semicircular portion and a side surface of a circumferential portion of the first fan-shaped portion are opposed to each other,
A side surface of the circumferential portion of the semicircular portion and a side surface of the circumferential portion of the second fan-shaped portion are opposed to each other,
A part of the cable is held between the circumferential portions of the two opposing sides,
A cable cover that includes a groove that can bend and hold the cable and limit the direction in which the cable extends. The cable cover according to claim 1, wherein the curvature of the cable path formed by the semicircular portion, the first fan-shaped portion, and the second fan-shaped portion is greater than or equal to a minimum radius of curvature of the cable. The curvature of the circumferential portion of the semicircular portion is smaller than the curvature of the circumferential portion of the first fan-shaped portion and the curvature of the circumferential portion of the second fan-shaped portion. cable cover.

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