JP2016123225A - Cable fixing structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable fixing structure capable of facilitating work of attachment to and detachment from a rod-like member.SOLUTION: A cable fixing structure 1 comprises: a mold part 2 as a resin cable protection part which protects a cable 10 by surrounding the outer peripheral side of the cable; a mounting hole 3 which is provided while penetrating the mold part 2 in such a manner that a suspension bolt 20 of which one end at an upper side is fixed and which is suspended at a lower side, can be inserted therethrough; and a contact part 4 which is provided in a part of an inner peripheral surface of the mounting hole 3 and formed in contact with a screw part 21 that is provided in an outer circumference of the suspension bolt 20 in a state where the suspension bolt 20 is inserted through the mounting hole 3. The mold part 2 is locked to the suspension bolt 20 by bringing the contact part 4 into contact with the screw part 21 in the state where the suspension bolt 20 is inserted through the mounting hole 3.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a cable fixing structure.

  Conventionally, mainly for the purpose of labor saving of indoor wiring work, an electrical wiring system formed in advance by connecting necessary electrical wiring circuits in a factory, molding a connection portion, and pre-assembling a cable branch connection process, So-called unit cables are known. For example, Patent Document 1 discloses a unit cable having a configuration in which a plurality of two-core or three-core flat cables are bundled and aggregated into a single joint box (connection portion).

JP 2009-21118 A

  By the way, for example, a unit cable described in Patent Document 1 is fixed to a bolt member (bar-shaped member) having a configuration in which one end on the upper side is fixed to a ceiling of a building and the like, and hung downward. There is a case. In this case, first, the bolt member is inserted into the mounting hole provided in the connecting portion of the unit cable, and then the nut is attached to the bolt member inserted into the mounting hole, thereby fixing the unit cable to the bolt member. . Thus, when fixing the conventional unit cable to the bolt member, it is necessary to attach the nut to the bolt member. Similarly, when removing the unit cable from the bolt member, it is necessary to remove the nut. Met. Moreover, when changing the attachment position of a connection part, the operation | work of loosening the nut attached to the suspension bolt, adjusting the position of a connection part, and retightening a nut was required. For this reason, in the conventional unit cable, it may take a long time to attach and detach the bolt member and adjust the position, and there is room for improvement in improving workability.

  This invention is made | formed in view of the above, Comprising: It aims at providing the cable fixing structure which can attach or detach to a rod-shaped member simply.

  In order to solve the above-described problems, the cable fixing structure according to the present invention includes a resin-made cable protection portion that surrounds and protects the outer peripheral side of the cable, and a rod-like shape in which an upper end is fixed and suspended downward. An attachment hole provided through the cable protection portion so that the member can be inserted, and an inner peripheral surface of the attachment hole. In a state where the rod-like member is inserted into the attachment hole, an outer periphery of the rod-like member is provided. A contact portion formed so as to be able to come into contact with the uneven portion provided, and the cable protection portion is configured so that the contact portion is the inner peripheral surface of the attachment hole in a state where the rod-shaped member is inserted into the attachment hole. In addition to being provided in a part of the bar-shaped member, the bar-shaped member is engaged with the concave-convex portion of the bar-shaped member so as to be locked to the bar-shaped member.

  Further, in the cable fixing structure, the mounting hole has a small diameter portion having a hole diameter smaller than the shaft diameter of the rod-shaped member and a large diameter portion having a hole diameter larger than the shaft diameter of the rod-shaped member, The small-diameter portion is the contact portion, and the cable protection portion is deformed by the small-diameter portion being in contact with the uneven portion of the rod-shaped member in a state where the rod-shaped member is inserted through the mounting hole. It is preferable to be locked to the rod-shaped member.

  In the cable fixing structure, the cable protection part is formed so as to draw out the cable from both sides in a predetermined extending direction, and is formed so as to surround an outer peripheral side of the cable along the extending direction. A main body part and a projecting part projecting from the outer peripheral surface of the main body part, and the attachment hole penetrates the projecting part of the cable protection part in a direction perpendicular to the extending direction. It is preferable to be provided.

  In the cable fixing structure, the attachment hole is preferably provided at a position equivalent to a center position of the main body portion of the cable protection portion in the extending direction.

  Further, in the above cable fixing structure, the cable protection portion houses therein a connection portion formed by connecting terminals of a plurality of cables, and a part of the plurality of cables connected at the connection portion. Is preferably drawn out from the connecting portion to one side in the extending direction, and the remainder of the plurality of cables is drawn out from the connecting portion to the other side in the extending direction.

  In the cable fixing structure, the cable protection part is preferably a mold part that is molded so as to cover the connection part with a resin material.

  The cable fixing structure according to the present invention can be applied to a part of the inner peripheral surface of the mounting hole even if a nut is not fastened to the lower end of the bolt member (bar-shaped member) penetrating the cable protection portion as in a conventional unit cable. Since the cable protection portion can be locked to the bolt member by the formed contact portion, there is an effect that the attaching / detaching operation to the rod-like member can be simplified.

FIG. 1 is a perspective view showing a schematic configuration of a cable fixing structure according to an embodiment of the present invention. FIG. 2 is a front view of the cable fixing structure shown in FIG. 3 is a cross-sectional view taken along the line III-III in FIG. FIG. 4 is a diagram illustrating a state in which the cable fixing structure according to the present embodiment is attached to the suspension bolt. FIG. 5 is a diagram showing a first stage of an attaching operation for attaching the cable fixing structure of the present embodiment to the suspension bolt. FIG. 6 is a diagram showing a second stage of the attaching operation for attaching the cable fixing structure of the present embodiment to the suspension bolt. FIG. 7 is a diagram showing a third stage of the attaching operation for attaching the cable fixing structure of the present embodiment to the suspension bolt. FIG. 8 is a cross-sectional view of a cable fixing structure showing a schematic configuration of a first modification of the embodiment. FIG. 9 is a cross-sectional view of a cable fixing structure showing a schematic configuration of a second modification of the embodiment. FIG. 10 is a cross-sectional view of a cable fixing structure showing a schematic configuration of a third modification of the embodiment. FIG. 11 is a cross-sectional view of a cable fixing structure showing a schematic configuration of a fourth modification of the embodiment. FIG. 12 is a cross-sectional view of a cable fixing structure showing a schematic configuration of a fifth modification of the embodiment. FIG. 13 is a cross-sectional view of a cable fixing structure showing a schematic configuration of a sixth modified example of the embodiment.

  Embodiments of a cable fixing structure according to the present invention will be described below with reference to the drawings. In the following drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof will not be repeated.

[Embodiment]
First, with reference to FIGS. 1-4, the structure of the cable fixing structure which concerns on one Embodiment of this invention is demonstrated. FIG. 1 is a perspective view showing a schematic configuration of a cable fixing structure according to an embodiment of the present invention. FIG. 2 is a front view of the cable fixing structure shown in FIG. 3 is a cross-sectional view taken along the line III-III in FIG. FIG. 4 is a diagram illustrating a state in which the cable fixing structure according to the present embodiment is attached to the suspension bolt.

  As shown in FIG. 1, the cable fixing structure 1 of the present embodiment is formed by performing branch wiring processing of a plurality of cables 10 in advance, molding the connecting portions of these cables 10 and pre-assembling (temporary assembly). This is a kind of so-called unit cable. And as shown in FIG. 4, the cable fixing structure 1 of this embodiment is the structure for fixing the some cable 10 integrated in this way using the suspension bolt 20 (bar-shaped member). It is.

  The suspension bolt 20 is a type of bolt member that is generally used to suspend equipment such as pipes, ducts, and air conditioners, and to suspend a lightweight steel ceiling base (LGS). As shown in FIG. 4, the suspension bolt 20 is a long bar, and a bolt member having a configuration in which an upper end is fixed to a support body 30 such as a ceiling and is suspended downward from the support body 30. It is. On the outer peripheral surface of the suspension bolt 20, a screw portion 21 (concave / convex portion) subjected to male screw processing is provided. The lower end of the suspension bolt 20 can be a free end, for example, as shown in FIG. In the present embodiment, the suspension bolt 20 is suspended vertically downward from the support body 30. That is, the suspension bolt 20 is installed such that the axis C2 extends along the vertical direction.

  As shown in FIGS. 1, 3, and 4, the plurality of cables 10 collected by the cable fixing structure 1 are configured by laminating a plurality of flat cables. Each cable 10 which is a flat cable is formed by arranging a plurality of electric wires 11 having a circular cross section in such a manner that the conductor portion 12 is covered with an insulating portion 13 and these electric wires 11 extend in the same direction. In addition, a plurality of electric wires 11 arranged in parallel are collectively covered with a sheath (outer skin) 14. In the present embodiment, as shown in FIG. 1 and the like, a three-core flat cable that includes three electric wires 11 is illustrated as the cable 10, but the type of the cable 10 is not limited to this.

  Further, in this embodiment, as shown in FIG. 1, three cables 10A arranged in a stacked manner and three cables 10B arranged in the same manner extend in the same direction, and the cable fixing structure A connecting portion (not shown) to which each terminal is connected is formed inside one mold portion 2.

  In the following description, the direction in which each of the plurality of cables 10 (10A, 10B) shown in FIG. 1 extends is referred to as “cable extension direction”, and three wires 11 are arranged in parallel in each of the plurality of cables 10. The direction in which this is done is referred to as the “cable width direction”. The cable extending direction and the cable width direction are directions orthogonal to each other. Further, a direction orthogonal to these cable extending direction and cable width direction is referred to as an “axial direction”. This axial direction is the direction of the axial line C1 of the mounting hole 3 to be described later. Further, as shown in FIG. 4, the direction in which the suspension bolt 20 is suspended is denoted as “vertical direction”.

  As shown in FIGS. 1 to 4, the cable fixing structure 1 of the present embodiment includes a mold part 2 (cable protection part) and an attachment hole 3.

  The mold part 2 is a member molded (injection-molded) so as to cover the connection part of the cable 10 with a resin material, and surrounds the outer peripheral side of the cable to protect the connection part. Here, the connection portion of the cable 10 will be described. In the plurality of cables 10A and 10B, the sheath 14 is peeled off at the terminals facing each other, and the insulating portion 13 of each electric wire 11 is peeled off to form a conductor portion. 12 is exposed, and these conductor portions 12 are electrically connected to the conductor portions 12 of other electric wires. The connection portion of the cable 10 is a portion in which the conductor portions 12 exposed in this way are connected to form a circuit, and the sheath 14 and the insulating portion 13 are peeled off. The mold part 2 is subjected to insulation treatment by filling the periphery of the connection part with a resin material.

  Although the mold part 2 is shape | molded using soft resin (soft vinyl chloride) in this embodiment, other materials, such as polyethylene, can be used, for example.

  The mold part 2 is formed so as to draw out the plurality of cables 10 from both sides in the cable extending direction. In more detail, the mold part 2 transfers a part of the cables 10A among the plurality of cables 10 connected at the internal connection part from the connection part to one side (right side in FIG. 2) in the cable extending direction. It is formed so that the remaining cable 10B is pulled out from the connecting portion to the other side in the cable extending direction (left side in FIG. 2).

  The mold part 2 has a main body part 2a formed so as to surround the outer peripheral side of the cable 10 along the cable extending direction, and a projecting part 2b protruding from the outer peripheral surface of the main body part 2a.

  The main body 2a accommodates a connecting portion formed by connecting terminals of a plurality of cables 10 and pulls out the cable 10A from one side in the cable extending direction and the cable 10B from the other side in the cable extending direction. Formed.

  The protruding portion 2b is formed so as to protrude from a substantially central portion of the main body portion 2a in the cable extending direction to one side (upper side in FIGS. 1 and 2) in the cable width direction. An attachment hole 3 for fixing the cable fixing structure 1 to the suspension bolt 20 is provided through the protruding portion 2b.

  The attachment hole 3 is formed so that the suspension bolt 20 can be inserted. As shown in FIG. 3, the mounting hole 3 is provided through the protruding portion 2b of the mold portion 2 in the axial direction perpendicular to the cable extending direction and the cable width direction, and the axis C1 is along the axial direction. It is formed as follows. Moreover, the attachment hole 3 is provided in the position equivalent to the center position of the main-body part 2a of the mold part 2 in the cable extension direction, as shown in FIG.

  In particular, in the present embodiment, a screw provided on the outer periphery of the suspension bolt 20 in a state where the suspension bolt 20 is inserted into the attachment hole 3 in a part along the axial direction of the inner peripheral surface of the attachment hole 3. A contact portion 4 formed so as to be in contact with the portion 21 is provided. The mold portion 2 is locked to the suspension bolt 20 when the contact portion 4 comes into contact with the screw portion 21 of the suspension bolt 20 in a state where the suspension bolt 20 is inserted into the mounting hole 3.

  The contact portion 4 will be further described. In this embodiment, as shown in FIGS. 2 and 3, the mounting hole 3 includes a small diameter portion 5 having a hole diameter smaller than the shaft diameter of the suspension bolt 20 and a large diameter portion 6 having a hole diameter larger than the shaft diameter of the suspension bolt 20. Have. The small diameter portion 5 is provided in the central portion of the mounting hole 3 in the axial direction. The large diameter portion 6 is provided at both ends of the mounting hole 3 in the axial direction, that is, at the opening of the mounting hole 3. As shown in FIG. 2, the shape of the mounting hole 3 in the small diameter part 5 and the large diameter part 6 is formed concentrically with the axis C1 as the center when viewed from the axial direction. The mounting hole 3 is formed so that the hole diameter gradually increases as it proceeds from the small diameter part 5 side to the large diameter part 6 side along the axial direction. That is, the mounting hole 3 is formed with a tapered inner peripheral surface so that the hole diameter of the opening into which the suspension bolt 20 is inserted is the largest and the hole diameter at the central portion in the axial direction is the smallest.

  In the present embodiment, in a state where the suspension bolt 20 is inserted into the mounting hole 3, the small diameter portion 5 is elastically deformed by bringing the inner peripheral surface of the small diameter portion 5 into contact with the screw portion 21 of the suspension bolt 20. 5 is caught by the screw part 21, and the mold part 2 can be locked to the suspension bolt 20 (see FIG. 6). That is, in the present embodiment, the small diameter portion 5 of the attachment hole 3 is the contact portion 4 formed so as to be able to contact the screw portion 21 of the suspension bolt 20 when the suspension bolt 20 is inserted into the attachment hole 3.

  Next, with reference to FIGS. 5-7, the attachment operation | movement which attaches the cable fixing structure 1 of this embodiment to the suspension bolt 20 is demonstrated. FIG. 5 is a diagram showing a first stage of an attaching operation for attaching the cable fixing structure of the present embodiment to the suspension bolt. FIG. 6 is a diagram showing a second stage of the attaching operation for attaching the cable fixing structure of the present embodiment to the suspension bolt. FIG. 7 is a diagram showing a third stage of the attaching operation for attaching the cable fixing structure of the present embodiment to the suspension bolt.

  First, as shown in FIG. 5 as the first stage, the mold part 2 moves from the lower side in the vertical direction so as to approach the lower end part of the suspension bolt 20, and the lower end part of the suspension bolt 20 is inserted into the attachment hole 3. The shaft diameter of the suspension bolt 20 is smaller than the hole diameter of the large diameter portion 6 provided in the opening of the attachment hole 3 and larger than the hole diameter of the small diameter portion 5 provided in the center of the attachment hole 3 in the axial direction. When inserted, first, it contacts the inner peripheral surface of the mounting hole 3 at a position between the large diameter portion 6 and the small diameter portion 5. External force F is continuously applied to the mold part 2 in the vertical direction.

  Next, as shown in FIG. 6 as a second stage, the mold part 2 is further moved upward in the vertical direction by the external force F from the state where the lower end of the suspension bolt 20 is in contact with the inner peripheral surface of the mounting hole 3. It is pushed against the lower end. At this time, since the entire mold part 2 is integrally formed of a soft resin, the small diameter part 5 of the mounting hole 3 is elastically deformed by being pressed from the lower end part of the suspension bolt 20, and the hole diameter is the suspension bolt 20. It is expanded to such an extent that the lower end of the can be inserted. As a result, as shown in FIG. 6, the suspension bolt 20 is in a state of passing through the attachment hole 3. At this time, the axis C1 of the attachment hole 3 coincides with the axis C2 of the suspension bolt 20, and the attachment hole 3 is located on the outer periphery of the suspension bolt 20 in the region A in the vicinity of the small diameter portion 5 on the inner peripheral surface. It is in contact with the screw portion 21. Further, since a restoring force acts on the small diameter portion 5 so as to return elastically to the axis C1 side so as to return to the hole diameter before being expanded to the suspension bolt 20, the contact region A in the vicinity of the small diameter portion 5 of the mounting hole 3 The adhesion of 20 is enhanced. That is, the suspension bolt 20 is press-fitted into the small diameter portion 5 of the mounting hole 3. Note that the expressions “elastic deformation” and “elastic return” used here do not necessarily need to be “completely elastic”, but also include those that are partially plastically deformed.

  Here, as shown in FIG. 6, in the mold part 2, the arrangement of the cable 10 is biased with respect to the position of the axis C <b> 1 of the mounting hole 3 and the axis C <b> 2 of the suspension bolt 20. That is, as for the mold part 2, the main-body part 2a in which the cable 10 is accommodated is heavier than the protruding part 2b in which the attachment hole 3 is provided. For this reason, when the external force F is not applied to the mold part 2 in the vertical direction, the mold part 2 has an axial center of the suspension bolt 20 due to the weight of the cable 10 as shown in FIG. A moment M is generated in the direction in which the main body 2a is inclined downward in the vertical direction with respect to C2. As a result, as shown in FIG. 7, the axis C <b> 1 of the mounting hole 3 is inclined toward the main body 2 a side with respect to the axial center C <b> 2 of the suspension bolt 20, and the mold portion 2 makes the main body 2 a perpendicular to the suspension bolt 20. It will be in the state inclined so that it might be pulled in the direction lower side. At this time, the contact area A on the inner peripheral surface of the mounting hole 3 transitions to a contact area A1 extended downward in the vertical direction on the main body 2a side, while expanding upward in the vertical direction on the opposite side to the main body 2a. Transition to the contact area A2. As a result, the adhesiveness between the inner peripheral surface of the mounting hole 3 and the screw portion 21 on the outer periphery of the suspension bolt 20 is enhanced, and the mold portion 2 is more securely fixed to the suspension bolt 20.

  Next, the effect of the cable fixing structure 1 according to the present embodiment will be described.

  The cable fixing structure 1 of the present embodiment includes a mold part 2 as a resin cable protection part that surrounds and protects the outer peripheral side of the cable 10, and a suspension bolt that is fixed at one end on the upper side and suspended on the lower side. 20 is provided on the inner peripheral surface of the mounting hole 3 through the mold portion 2 so as to be able to be inserted through the mold portion 2, and the suspension bolt 20 is inserted into the outer periphery of the suspension bolt 20 in a state where the suspension bolt 20 is inserted into the mounting hole 3. And a contact portion 4 formed so as to be able to come into contact with the provided screw portion 21. In the state where the suspension bolt 20 is inserted into the attachment hole 3, the mold portion 2 is provided on a part of the inner peripheral surface of the attachment hole 3 and contacts the screw portion 21 of the suspension bolt 20. Locked to the suspension bolt 20.

  With this configuration, the contact portion 4 formed on a part of the inner peripheral surface of the mounting hole 3 can be used without fastening a nut to the lower end portion of the suspension bolt 20 penetrating the mold portion 2 as in a conventional unit cable. The mold part 2 can be locked to the suspension bolt 20. Moreover, since the contact part 4 is formed only in a part rather than the whole attachment hole 3, it is possible to reduce the resistance force required to press-fit the suspension bolt 20 into the attachment hole 3, and to easily attach the suspension bolt 20 to the attachment hole 3. The mold part 2 can be easily locked to the suspension bolt 20. Similarly, the suspension bolt 20 inserted through the attachment hole 3 due to the fact that it is not necessary to fasten a nut to the suspension bolt 20 and that the contact portion 4 is formed only in a part rather than the entire attachment hole 3. Can be easily pulled out, and the mold part 2 can be easily detached from the suspension bolt 20. Moreover, the fixing position of the mold part 2 can be easily adjusted only by changing the contact position between the contact part 4 of the mounting hole 3 and the suspension bolt 20. Therefore, the cable fixing structure 1 of the present embodiment can simplify the attaching / detaching operation and the position adjusting operation to the suspension bolt 20.

  Further, in the cable fixing structure 1 described above, the attachment hole 3 has a small diameter portion 5 having a hole diameter smaller than the shaft diameter of the suspension bolt 20 and a large diameter portion 6 having a hole diameter larger than the shaft diameter of the suspension bolt 20. The small-diameter portion 5 of the hole 3 is a contact portion 4 formed so as to be able to come into contact with a screw portion 21 provided on the outer periphery of the suspension bolt 20 in a state where the suspension bolt 20 is inserted into the attachment hole 3. The mold portion 2 is locked to the suspension bolt 20 when the suspension bolt 20 is inserted into the mounting hole 3 and the small-diameter portion 5 comes into contact with the screw portion 21 of the suspension bolt 20 and deforms.

  With this configuration, when the suspension bolt 20 is inserted into the attachment hole 3, the contact portion can be narrowed to the small diameter portion 5, so that the suspension bolt 20 can be easily inserted into the attachment hole 3 and pulled out from the attachment hole 3. Thus, the attaching / detaching operation to the suspension bolt 20 and the position adjusting operation can be further simplified.

  Moreover, in said cable fixing structure 1, the mold part 2 is formed so that the cable 10 may be pulled out from both sides in the cable extending direction, and is formed by surrounding the outer peripheral side of the cable 10 along the cable extending direction. Part 2a and projecting part 2b projecting from the outer peripheral surface of main body part 2a. The mounting hole 3 is provided through the protruding portion 2b of the mold portion 2 in the axial direction orthogonal to the cable extending direction.

  With this configuration, the position of the cable 10 embedded in the main body 2a can be made uneven with the axial position of the mounting hole 3 as the center. As a result, the adhesion between the mounting hole 3 and the suspension bolt 20 can be improved, and the contact portion 4 of the mounting hole 3 can easily bite into the threaded portion 21 of the suspension bolt 20. The suspension bolt 20 can be firmly fixed.

  Moreover, in said cable fixing structure 1, the attachment hole 3 is provided in the position equivalent to the center position of the main-body part 2a of the mold part 2 in the cable extension direction.

  With this configuration, the weight of the cable 10 is evenly applied to the mounting hole 3 in the cable extending direction when the suspension bolt 20 is inserted into the mounting hole 3. The influence can be concentrated in the cable width direction (the connecting direction between the main body 2a and the projecting portion 2b of the mold part 2), and the inclination of the mold part 2 due to the weight of the cable 10 can be suitably generated.

  Moreover, in said cable fixing structure 1, the mold part 2 accommodates in the inside the connection part formed by connecting the terminal of the some cable 10, and is one of the some cable 10 connected by this connection part. The cable 10A is pulled out from the connecting portion to one side in the cable extending direction, and the remaining cables 10B of the plurality of cables 10 are drawn from the connecting portion to the other side in the cable extending direction.

  With this configuration, the mold part 2 can accommodate and protect the connection part formed by connecting the terminals of the plurality of cables 10, and thus can effectively protect the cable 10.

  Moreover, in said cable fixing structure 1, the mold part 2 is molded and formed so that a connection part may be coat | covered with a resin material. With this configuration, it is possible to improve the insulating properties of the connecting portions of the plurality of cables 10 accommodated in the mold portion 2.

[Modification]
Next, a modification of the above embodiment will be described with reference to FIGS. 8-13 is sectional drawing of the cable fixing structure which shows schematic structure of the 1st modification-6th modification of embodiment.

  If the shape (refer FIG. 3) of the attachment hole 3 of the said embodiment is the structure by which the contact part 4 which can contact the suspension bolt 20 is provided in a part along the axial direction of the internal peripheral surface of the attachment hole 3. Can be changed as appropriate. As an example in which the shape of the mounting hole 3 is modified, mounting holes 3a to 3f provided in the cable fixing structures 1a to 1f of FIGS.

  For example, as shown in FIG. 8, in the cable fixing structure 1a, a small diameter portion 5 having a diameter smaller than the shaft diameter of the suspension bolt 20 is provided in one opening of the attachment hole 3a, and the suspension bolt is disposed in the other opening of the attachment hole 3a. It is good also as a structure which provides the large diameter part 6 whose hole diameter is larger than 20 shaft diameters. At this time, the small-diameter portion 5 provided in one opening of the mounting hole 3a is in contact with the screw portion 21 of the suspension bolt 20 in a state where the suspension bolt 20 is inserted into the attachment hole 3a. Become. In this case, the suspension bolt 20 is inserted into the attachment hole 3a from the opening having the large-diameter portion 6 (the upper opening in FIG. 8). The mounting hole 3a is formed such that the hole diameter gradually increases as it proceeds from the small diameter part 5 side to the large diameter part 6 side along the axial direction. That is, the mounting hole 3a is formed with a tapered inner peripheral surface so that the hole diameter of the opening into which the suspension bolt 20 is inserted is the largest and the hole diameter of the opening on the opposite side is the smallest. The suspension bolt 20 is configured to be easily inserted into the mounting hole 3a.

  Similarly, as shown in FIG. 9, in the cable fixing structure 1b, a small-diameter portion 5 is provided in the central portion in the axial direction on the inner peripheral surface of the mounting hole 3b, and all other portions of the inner peripheral surface of the mounting hole 3b are provided. It is good also as a structure made into the large diameter part 6. FIG. In the example of FIG. 9, the shape of the mounting hole 3 b is basically constituted by the large diameter portion 6, and the small diameter portion 5 is formed by locally projecting inward at the central portion in the axial direction. The cross-sectional shape of the projecting portion of the small diameter portion 5 is a substantially triangular wave shape as shown in FIG. At this time, the small-diameter portion 5 provided at the central portion in the axial direction on the inner peripheral surface of the attachment hole 3b can come into contact with the screw portion 21 of the suspension bolt 20 in a state where the suspension bolt 20 is inserted into the attachment hole 3b. The contact portion 4 is formed.

  Similarly, as shown in FIG. 10, in the cable fixing structure 1c, the small-diameter portion 5 is provided in both openings of the attachment hole 3c, and the large-diameter portion 6 is provided in the central portion in the axial direction on the inner peripheral surface of the attachment hole 3c. It is good also as a structure to provide. The attachment hole 3c is formed so that the hole diameter gradually increases as it proceeds from the small diameter part 5 side to the large diameter part 6 side along the axial direction. That is, the attachment hole 3c is formed with a tapered inner peripheral surface so that the hole diameter of the opening is the smallest and the hole diameter at the central portion in the axial direction is the largest. At this time, the small-diameter portion 5 provided in both openings of the attachment hole 3c is formed so as to be able to come into contact with the screw portion 21 of the suspension bolt 20 in a state where the suspension bolt 20 is inserted into the attachment hole 3c. Become.

  Similarly, as shown in FIG. 11, in the cable fixing structure 1d, a plurality of small diameter portions 5 are arranged in parallel along the axial direction at the central portion in the axial direction on the inner peripheral surface of the mounting hole 3d. It is good also as a structure which makes all the other parts of the inner peripheral surface of this large diameter part 6. FIG. In the example of FIG. 11, the shape of the mounting hole 3d is basically composed of a large-diameter portion 6, and a plurality of small-diameter portions 5 that protrude locally inward at the central portion in the axial direction are formed. The cross-sectional shape of the projecting portion of the small diameter portion 5 is a substantially triangular wave shape as shown in FIG. At this time, the plurality of small-diameter portions 5 provided in the central portion in the axial direction on the inner peripheral surface of the attachment hole 3d are in contact with the screw portion 21 of the suspension bolt 20 in a state where the suspension bolt 20 is inserted into the attachment hole 3d. The contact portion 4 can be formed.

  Similarly, as shown in FIG. 12, in the cable fixing structure 1e, a small-diameter portion 5 is provided in the central portion in the axial direction on the inner peripheral surface of the mounting hole 3e, and all other portions of the inner peripheral surface of the mounting hole 3e are provided. It is good also as a structure made into the large diameter part 6. FIG. In the example of FIG. 12, the shape of the mounting hole 3e is basically constituted by the large-diameter portion 6, and the small-diameter portion 5 is formed by locally projecting inward at the central portion in the axial direction. The cross-sectional shape of the protruding portion of the small diameter portion 5 is a substantially semicircular shape as shown in FIG. At this time, the small-diameter portion 5 provided at the central portion in the axial direction on the inner peripheral surface of the attachment hole 3e can come into contact with the screw portion 21 of the suspension bolt 20 in a state where the suspension bolt 20 is inserted into the attachment hole 3e. The contact portion 4 is formed.

  Moreover, as shown in FIG. 13, it is good also as a structure which inclines the direction of the axis C1 'of the attachment hole 3f in the cable fixing structure 1f with respect to the direction of the axis C1 of embodiment. As shown in FIG. 13, the mounting hole 3f is preferably formed such that the upper side in the vertical direction of the axis C1 ′ is inclined toward the main body 2a. At this time, the inner peripheral surface on the main body 2a side in the opening on the lower side in the vertical direction of the mounting hole 3f and the inner peripheral surface on the opposite side to the main body portion 2a in the opening on the upper side in the vertical direction of the mounting hole 3f are the mounting hole 3f. In the state in which the suspension bolt 20 is inserted into the contact portion 4, the contact portion 4 is formed so as to be able to contact the screw portion 21 of the suspension bolt 20.

  As mentioned above, although embodiment of this invention was described, the said embodiment was shown as an example and is not intending limiting the range of invention. The above-described embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. The above-described embodiments and modifications thereof are included in the invention described in the claims and the equivalents thereof, as long as they are included in the scope and gist of the invention.

  The installation position of the attachment hole 3 may be a position intersecting with the cable 10, that is, the main body portion 2 a instead of the protruding portion 2 b of the mold portion 2. In this case, the connection part of the cable 10 accommodated in the inside of the mold part 2 is arrange | positioned except the attachment hole 3 on the both sides of the cable width direction shown, for example in FIG. Further, the axial direction of the mounting hole 3 may be other than the direction orthogonal to the cable extending direction.

  Further, the direction in which the cable 10 is pulled out from the mold part 2 may be other than both sides in the cable extending direction. For example, a configuration in which all the cables 10 are pulled out in the same direction may be employed. Further, the direction in which the cables 10 are stacked is not limited to the axial direction as shown in FIG. 1, but may be rotated by 90 degrees from the example of FIG.

  Moreover, in the said embodiment, although the mold part 2 illustrated the structure formed by mold-molding so that the connection part of the cable 10 may be coat | covered with a resin material, the mold part 2 surrounds the outer peripheral side of the cable 10. It is sufficient that the function as a cable protection portion to be protected can be exhibited, and it may be replaced with an element formed by a method other than molding. For example, it is good also as a hollow housing which can accommodate the connection part of the cable 10 inside instead of the mold part 2. FIG.

  Moreover, although the mold part 2 illustrated the structure which accommodates the connection part of the cable 10 inside in the said embodiment, it is good also as a structure which provides the mold part 2 in parts other than the connection part of the cable 10. FIG.

  Moreover, in the said embodiment, although the suspension bolt 20 was illustrated as a target object to which the cable fixing structure 1 is fixed, it can also fix to bolt members other than a suspension bolt. For example, it is good also as a structure fixed to the embedding bolt (anchor bolt) embedded in the ceiling or the wall part. In the above embodiment, the configuration in which the suspension bolt 20 is suspended vertically downward is illustrated, but the direction in which the bolt member is suspended may be other than the vertical direction. In other words, the object to which the cable fixing structure 1 is fixed may be a bolt member in which one end on the upper side is fixed and can be inserted into the mounting hole from the other end on the lower side.

  Further, the object to which the cable fixing structure 1 is fixed may be a rod-shaped member that does not have the screw portion 21 in addition to the bolt member that has the screw portion 21. In this case, it is necessary to provide an uneven portion that can contact the contact portion 4 instead of the screw portion 21 on the outer peripheral surface of the rod-shaped member. That is, the screw part 21 provided in the suspension bolt 20 of the present embodiment is an example of an uneven part provided on the outer periphery of the rod-shaped member.

1, 1a to 1f Cable fixing structure 2 Mold part (cable protection part)
2a Main body part 2b Projection part 3, 3a-3f Mounting hole 4 Contact part 5 Small diameter part (contact part)
6 Large diameter part 10, 10A, 10B Cable 20 Suspension bolt (bar-shaped member)
21 Screw part (concave part)

Claims (6)

A resin cable protector that surrounds and protects the outer periphery of the cable;
An attachment hole provided through the cable protection portion so that a rod-like member that is fixed at one end on the upper side and suspended on the lower side can be inserted;
A contact portion that is provided on an inner peripheral surface of the mounting hole, and is formed so as to be able to come into contact with an uneven portion provided on an outer periphery of the rod-shaped member in a state where the rod-shaped member is inserted into the mounting hole;
With
In the state where the rod-shaped member is inserted through the attachment hole, the cable protection portion is provided on a part of the inner peripheral surface of the attachment hole and contacts the uneven portion of the rod-shaped member. A cable fixing structure that is locked to the rod-like member. The mounting hole has a small diameter portion whose hole diameter is smaller than the shaft diameter of the rod-shaped member, and a large diameter portion whose hole diameter is larger than the shaft diameter of the rod-shaped member,
The small diameter portion of the mounting hole is the contact portion;
The cable protection portion is locked to the rod-shaped member by deforming the small diameter portion in contact with the concave-convex portion of the rod-shaped member in a state where the rod-shaped member is inserted into the mounting hole.
The cable fixing structure according to claim 1. The cable protector is
Formed to draw the cable from both sides in a predetermined extending direction;
A main body formed to surround the outer peripheral side of the cable along the extending direction;
A projecting portion projecting from the outer peripheral surface of the main body portion;
Have
The attachment hole is provided through the protruding portion of the cable protection portion in a direction orthogonal to the extending direction.
The cable fixing structure according to claim 1 or 2. The mounting hole is provided at a position equivalent to a central position of the main body portion of the cable protection portion in the extending direction.
The cable fixing structure according to claim 3. The cable protection unit accommodates therein a connection part formed by connecting terminals of a plurality of cables, and extends a part of the plurality of cables connected at the connection part from the connection part. It is formed so as to be drawn out to one side in the direction, and the rest of the plurality of cables is drawn out from the connecting portion to the other side in the extending direction.
The cable fixing structure according to claim 3 or 4. The cable protection part is a molded part molded so as to cover the connection part with a resin material.
The cable fixing structure according to claim 5.

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