TWI472113B - Cable fixture - Google Patents

Description

Cable clamp Field of invention

The present invention relates to a cable clamp mounted on a cable penetration portion of a switchboard or a relay box or the like.

Background of the invention

Conventionally, in order to penetrate a cable in a wall portion of a switchboard or a relay box, a cable jig as disclosed in Patent Document 1 is used. The cable clamp disclosed in Patent Document 1 is formed in a tubular shape having a hollow portion in which a cable is housed, and is fixed to the wall portion in a state of penetrating a wall portion of the switchboard or the relay box. The one end portion of the cable jig that is located outside the switchboard or the relay box is provided with a jig structure in order to hold the cable and to seal the cable penetration portion.

However, in the case of a conventional cable, there is a connector in which a connector is preliminarily attached to the front end portion.

Prior technical literature Patent literature

[Patent Document 1] Japanese Patent Laid-Open Publication No. 59-188312

Summary of invention

The cable clamp described in Patent Document 1 has a problem that the connector is not attached in advance. The reason is that the width of the connector is larger than the outer diameter of the cable. That is, since the connector cannot be inserted into the hollow portion of the cable clamp, the conventional cable clamp is a cable in which the connector is not attached.

Moreover, in order to solve such a problem, it is necessary to not damage the sealing property between a cable clamp and a cable.

An object of the present invention is to provide a cable jig which can be used with a cable provided with a connector while maintaining a high sealing property.

In order to achieve the object, the cable clamp according to the present invention includes a male screw portion for fixing at one end, a male screw portion for a jig at the other end, and a flange portion at the center portion, and is housed inside. The direction in which the longitudinal direction of the cable is orthogonal is divided into two cylindrical threaded joints; the gap through which the cable can pass is screwed to the fixing male thread portion of the threaded joint that is combined with the cable after storage, and The flange portion cooperates to hold the C-shaped lock nut of the member to be mounted; the clamp of the threaded joint that is in a combined state after the cable is engaged is screwed to the male screw portion; Between the cables, which are divided into two cylindrical elastic sleeves corresponding to the threaded joints in a direction orthogonal to the longitudinal direction of the cable; and when the twisted cap is twisted by the male thread portion of the jig a clamp structure in which the elastic sleeve is pressed in a direction in which the diameter is reduced, and the cap is closed by a C-shaped outer cap body having a notch through which the cable can pass; and having a cable traversable Notch, and relative to the outside C-shaped cross section cover body is non-rotatably fitted in the interior of the outer body of the cap inside the cap body The notch of the outer cap body and the notch of the inner cap body are located at mutually different positions in the rotational direction of the torsion cap.

Moreover, with the cable clamp according to the present invention, the outer cap body has a convex portion that fits into the notch of the inner cap body, and the convex portion has a female thread that cooperates with the inner cap body to form a female thread of the tightening cap unit.

Further, with the cable clamp according to the present invention, the elastic sleeve has an O-ring portion exposed to the end face of the locking nut in the flange portion; the O-ring portion is formed to be surrounded by the axial direction of the threaded joint. Use the male thread.

Further, with the cable clamp according to the present invention, the clamp structure is configured such that the male screw portion of the clamp of the threaded joint protrudes toward the longitudinal direction of the threaded joint so as to be positioned between the elastic sleeve and the tightening cap The pressing piece is formed on the inclined surface of the inner peripheral portion of the tightening cap so that the front end portions of the plurality of pressing pieces are in contact with each other.

Moreover, in the cable clamp according to the present invention, the one end portion of the elastic sleeve has a tubular portion that protrudes from the male screw portion of the jig toward the longitudinal direction of the screw joint, and the jig structure is composed of a tubular portion with the elastic sleeve. a fitting ring for binding; and a beveled surface formed on the inner peripheral portion of the tightening cap by contacting the outer peripheral portion of the tightening ring, the binding ring having a flexible material and being formed on the circumference a plurality of pressing portions arranged in parallel with each other, and a dividing portion that divides a ring body composed of a plurality of pressing portions at one position in the circumferential direction, and the pressing portion extends in the longitudinal direction of the cable and in the circumferential direction The first pressing piece that is inclined in one direction and the second pressing piece that extends in the longitudinal direction of the cable and that is inclined in the other direction in the circumferential direction are formed. It is V-shaped.

Further, in the cable clamp according to the present invention, the one end portion of the elastic sleeve has a tubular portion that protrudes from the male screw portion of the jig toward the longitudinal direction of the screw joint, and the jig structure is formed to extend in the circumferential direction. The annular projection of the tubular portion of the elastic sleeve and the inclined portion of the inner peripheral portion of the cap are formed so as to be in contact with the outer peripheral portion of the annular projection.

The elastic sleeve of the cable clamp according to the present invention is attached to the cable in a state in which the cable is held between the one half and the other half divided into two. The threaded joint is attached to the cable in a state in which the cable is held between the one half and the other half divided into two by the elastic sleeve.

The lock nut can be twisted into the fixing male thread portion of the threaded joint in a state in which the cable is inserted into the inside through the notch. The inner cap body and the outer cap body of the tightening cap are coupled to each other in a state in which the cable is inserted into the inside through the notch.

The present invention is formed so that the cable can be freely attached and detached from a direction orthogonal to the longitudinal direction of the cable. For this reason, the cable clamp can be configured to be used even with a cable provided with a connector.

The inner cap body of the tightening cap is subjected to a reaction force from the cable side by screwing into the male thread portion of the jig of the threaded joint. This reaction force acts in the direction in which the inner cap body expands toward the wide width of the notch. However, since the inner cap body is fitted into the outer cap body, the end portion of the open end which becomes the notch is supported from the outside by the outer cap body. support.

For this reason, since the torsion cap can be firmly screwed into the male thread portion of the jig, a high sealing property can be obtained although the elastic body sleeve is divided into two. Therefore, it is possible to provide a cable clamp capable of using a cable provided with a connector while maintaining high sealing performance.

1‧‧‧Cable fixture

2‧‧‧Installed components

3‧‧‧ cable

4‧‧‧ hole

5‧‧‧Connector

6‧‧‧Fixed male thread

11‧‧‧Threaded joint

12‧‧‧Lock nut

12a, 13a, 49, 50‧‧‧ female thread

13‧‧‧Tighten the cap

14‧‧‧1st threaded joint half

15‧‧‧2nd threaded joint half

16‧‧‧ Male thread for the fixture

16a‧‧‧ male thread

17‧‧‧Flange

17a‧‧‧ engaging surface

24‧‧‧1st rubber sleeve half

24a, 25a‧‧‧ semi-cylindrical

24b, 25b‧‧‧ rods

24c, 25c‧‧‧O ring

25‧‧‧2nd rubber sleeve half

26‧‧‧Rubber sleeve

27, 28‧‧ ‧ recess

29, 30‧‧‧ barrel

31, 32, 35, 36‧‧‧ joint surface

33, 33‧‧ ‧ ditch

34‧‧‧Semicircular groove

37, 38‧‧‧

41‧‧‧Pressing tablets

42, 45, 46‧‧ ‧ gap

43‧‧‧Outer cap body

44‧‧‧Inside cap body

47‧‧‧ Groove

48‧‧‧1st convex

51‧‧‧

52‧‧‧2nd convex

53‧‧‧Bevel

54‧‧‧Clamp construction

61‧‧‧ Tightening ring

61a‧‧‧ sloped surface

62‧‧‧ Pressing Department

63‧‧‧Departure

64‧‧‧1st pressing piece

65‧‧‧2nd pressing piece

71, 72‧‧‧ annular protrusion

73‧‧‧Little Trails Department

1A and 1B are perspective views each showing a state in which a cable clamp according to a first embodiment of the present invention is attached to a member to be mounted and an assembled state before mounting.

2 is a perspective view of a member to be mounted and a cable.

Fig. 3 is an exploded perspective view of the cable clamp according to the first embodiment of the present invention.

Figure 4 is a cross-sectional view showing a cable clamp according to a first embodiment of the present invention.

Fig. 5 is a perspective view showing a state in which the outer side of the first threaded joint half is viewed.

Fig. 6 is a perspective view showing a state in which a first rubber sleeve half is attached to a half of the first threaded joint.

Fig. 7 is an exploded perspective view showing a state in which the first rubber sleeve half is removed from the first threaded joint half.

Fig. 8 is a perspective view showing a state in which the outer side of the second threaded joint half is viewed.

Fig. 9 is a perspective view showing a state in which a second rubber sleeve half is attached to a half of the second threaded joint.

Figure 10 is a view showing the second rubber sleeve half removed from the second threaded joint half An exploded perspective view of the state.

Figure 11 is a perspective view of the lock nut.

Fig. 12 is an exploded perspective view showing a state seen from the oblique front side of the tightening cap.

Fig. 13 is an exploded perspective view showing a state seen from the oblique rear side of the tightening cap.

Fig. 14 is a perspective view showing a state seen from the oblique rear side of the tightening cap.

Fig. 15 is a perspective view showing a state before the screw joint is mounted.

Figure 16 is a perspective view showing a state before the threaded joint and the lock nut are tightened.

Fig. 17 is a perspective view showing a state before the outer cap body and the inner cap body are joined.

Figure 18 is a perspective view showing a state before the tightening cap and the threaded joint are tightened.

Fig. 19 is a perspective view of a cable clamp according to a second embodiment of the present invention, and the same figure shows a state in which the twisted cap is removed from the threaded joint and disassembled.

Figure 20 is a perspective view showing a part of a cable clamp according to a second embodiment of the present invention, and the same figure shows a state in which the ring for fastening is removed.

Figure 21 is a cross-sectional view showing a cable clamp according to a third embodiment of the present invention, and the same figure shows a state before the twist cap is twisted.

Figure 22 is a cross-sectional view showing a cable clamp according to a third embodiment of the present invention, and the same figure shows a state in which the torsion cap is twisted.

Figure 23 is a view showing a cable clamp used in a third embodiment of the present invention. Side view of the rubber sleeve.

Form for implementing the invention

(First embodiment)

Hereinafter, an embodiment of the cable clamp according to the present invention will be described in detail with reference to Figs. 1A and 1B to Fig. 18.

The cable jig 1 shown in FIGS. 1A and 1B is attached to the member 2 to be mounted, and holds the cable 3 penetrating the member 2 to be mounted. Although not shown, the mounted member 2 is, for example, a wall portion such as a switchboard or a relay box. In the wall portion, as shown in FIG. 2, a hole 4 is formed.

The cable 3 is a connector 5 provided in advance at both ends. The wide width of the connector 5 is formed to be larger than the outer diameter of the cable 3. As shown in FIG. 2, the connector 5 is a member that can enter and exit the hole 4 of the member 2 to be mounted. The inner diameter of the hole 4 is formed to a size that can pass through the minimum necessary value of one end portion (the fixing male screw portion 6 to be described later) of the cable jig 1 . As shown in FIGS. 1A, 1B and 3, the cable clamp 1 includes a threaded joint 11 attached to the member 2 to be mounted, a lock nut 12 screwed to one end portion of the threaded joint 11, and a threaded joint 11 The other end is screwed to tighten the cap 13.

The threaded joint 11 is formed to be divided into two in a direction orthogonal to the longitudinal direction of the cable 3, that is, to be divided into two along the longitudinal direction of the cable 3. In other words, as shown in FIG. 3, the threaded joint 11 is configured by the first threaded joint half portion 14 and the second threaded joint half portion 15. The tubular threaded joint 11 that can house the cable 3 therein is formed by joining the second threaded joint half 15 to the first threaded joint half 14 . First threaded joint half 14 and second threaded joint The head halves 15 are each formed into a specific shape using a plastic material.

The male screw portions 6 and 16 are formed at both end portions in the longitudinal direction of the threaded joint 11 in which the first threaded joint half portion 14 is joined to the second threaded joint half portion 15. These male screw portions 6, 16 are each formed in a cylindrical shape. Further, in the central portion in the longitudinal direction of the threaded joint 11, a disk-shaped flange portion 17 that protrudes outward in the radial direction from the male screw portions 6 and 16 is formed. An engagement surface 17a for engaging a tool (not shown) is formed in the flange portion 17.

Among the two male screw portions 6 and 16, the fixing male screw portion 6 located on one end side (upper right side in FIG. 3) of the threaded joint 11 passes through the hole 4 and is screwed with a lock nut to be described later. 12.

The jig male thread portion 16 located on the other end side of the threaded joint 11 is screwed with a tightening cap 13 to be described later.

In the portion of the first threaded joint half portion 14 that constitutes the male screw portion 6 for fixing and the portion that constitutes the male screw portion 16 of the jig, as shown in FIGS. 6 and 7, the first and second threads are joined. The ridges 18, 19 used in the joint halves 14, 15. The protrusions 18 and 19 and the grooves 20 and 21 formed in the portion of the second threaded joint half 15 that constitutes the male screw portion 6 and the male screw portion 16 for the jig (see Figs. 9 and 10). Chimerism.

In the portion of the first threaded joint half portion 14 that constitutes the flange portion 17, as shown in Figs. 5 to 7, a cylindrical projection 22 for joining the first and second threaded joint halves 14, 15 is formed. The projection 22 is fitted into a circular hole 23 formed in a portion (see FIGS. 9 and 10) of the second threaded joint half 15 which constitutes the flange portion 17.

In the portion of the first threaded joint half portion 14 that constitutes the male thread portion 16 for the jig, as shown in Fig. 6, the first rubber sleeve half portion 24 is inserted. In the portion of the second threaded joint half 15 which constitutes the male screw portion 16 for the jig, as shown in Fig. 9, the second rubber sleeve half 25 is inserted.

As shown in Fig. 7 and Fig. 10, the first and second rubber sleeve halves 24 and 25 according to the embodiment include semi-cylindrical portions 24a and 25a formed in a semicircular cross section, and a semi-cylindrical portion 24a. One end of the 25a is connected to the O-ring portions 24c and 25c of the two rod-shaped portions 24b and 25b.

The semi-cylindrical portions 24a and 25a; the rod-shaped portions 24b and 25b; and the O-ring portions 24c and 25c are integrally formed by integral molding using rubber or an elastomer as a material. In this embodiment, the first rubber sleeve half 24 and the second rubber sleeve half 25 constitute the so-called "elastic sleeve" of the present invention. The first rubber sleeve half portion 24 and the second rubber sleeve half portion 25 are formed by joining the second threaded joint half portion 15 to the first threaded joint half portion 14 to form a rubber sleeve 26 (see FIG. 3 ).

The second rubber sleeve half 25 according to this embodiment is the same as the first rubber sleeve half 24. In other words, in this embodiment, two rubber sleeve halves of one type are manufactured, one of which is used as the first rubber sleeve half 24, and the other is used as the second rubber sleeve half 25.

As shown in Fig. 4, the semi-cylindrical portions 24a, 25a are fitted into the recesses 27, 28 of the first and second threaded joint halves 14, 15. The recesses 27 and 28 are formed as holes having a circular cross section in a state in which the first threaded joint half 14 is joined to the second threaded joint half 15 . In other words, by joining the second threaded joint half 15 in the first threaded joint half 14, a two-half cylinder is formed in the threaded joint 11 A rubber cylinder composed of the portions 24a and 25a. The cylinder is for sealing between the threaded joint 11 and the cable 3.

As shown in FIG. 4, the length of the semi-cylindrical portions 24a and 25a (the length in the longitudinal direction of the cable 3) is formed so as to protrude from the jig male screw portion 16 toward the opposite side from the flange portion 17 by a specific length. In other words, the first and second rubber sleeve halves 24 and 25 are provided with projecting portions 29 and 30 that protrude from the male screw portion 16 for the jig.

As shown in FIGS. 6 and 9, the rod-shaped portions 24b and 25b provided in the first and second rubber sleeve halves 24 and 25 are formed to form the flanges of the first and second threaded joint halves 14, 15. The joint faces 31 and 32 of the portion 17 are transversely cut from the inner peripheral side toward the outer peripheral side. As shown in FIGS. 7 and 10, the rod portions 24b and 25b are inserted into the two grooves 33 and 33 formed on the joint faces 31 and 32.

The O-ring portions 24c and 25c provided in the first and second rubber sleeve halves 24 and 25 are between the flange portion 17 for sealing the threaded joint 11 and the member to be mounted 2. As shown in FIGS. 7 and 10, the O-ring portions 24c and 25c are formed from the axis of the threaded joint 11 so as to form the flange portion 17 along the first and second threaded joint halves 14, 15. The view is semicircular.

The O-ring portions 24c, 25c according to this embodiment are inserted into the semicircular grooves 34 formed in the flange portion 17 to be held. The groove 34 is formed in an end surface 17b of the flange portion 17 opposed to the lock nut 12 in a state of being in communication with the two grooves 33, 33. In other words, the O-ring portions 24c and 25c are exposed to the end surface 17b of the flange portion 17 that is directed to the lock nut 12, and are formed to surround the fixing male screw portion 6 as viewed in the axial direction of the screw joint 11. Further, the O-ring portions 24c and 25c are formed to face the lock nut from the end surface 17b in a state of being inserted into the groove 34. 12 sides stand out.

As shown in FIGS. 7 and 10, protrusions 37 and 38 are formed in the joint faces 35 and 36 where the first rubber sleeve half 24 and the second rubber sleeve half 25 face each other. The ridges 37 and 38 are formed on one of the joint faces formed at each of the rubber sleeve half portions 24 and 25, and are formed on one joint surface. Further, the ridges 37 and 38 are formed to extend continuously without being cut in the semi-cylindrical portions 24a and 25a, the rod-shaped portions 24b and 25b, and the O-ring portions 24c and 25c. In other words, by combining the first rubber sleeve half 24 and the second rubber sleeve half 25, the ridges 37 and 38 are pressed against the flat joint surface of the other rubber sleeve half with a relatively high area pressure. 35, 36. Therefore, the first and second rubber sleeves 24 and 25 also seal the joint portions of the first and second threaded joints 14, 15.

As shown in FIG. 4, FIG. 5, and FIG. 8, a plurality of pressing pieces 41 are provided at the tips of the male screw portions 16 of the first and second threaded joint halves 14 and 15 which constitute the jig. These pressing pieces 41 cooperate with the tightening cap 13 to be described later to press the protruding portions 29 and 30 of the first and second rubber sleeve halves 24 and 25 toward the inside in the radial direction. The pressing piece 41 according to this embodiment is integrally formed integrally with the male screw portion 16 constituting the jig of the first and second threaded joint halves 14 and 15.

Each of the pressing pieces 41 is formed in a thin strip shape, and protrudes from the male screw portion 16 of the jig toward the longitudinal direction of the screw joint 11 so as to be positioned between the rubber sleeve 26 and the tightening cap 13 . Further, the plurality of pressing pieces 41 are arranged side by side in the circumferential direction of the male screw portion 16 for the jig at a predetermined interval.

The front end portion of each of the pressing pieces 41 is formed to be thicker than the base portion.

As shown in FIG. 11, the lock nut 12 is formed to have a section of the notch 42. Face C shape. The lock nut 12 is made of metal. A female screw portion 12a of the fixing male screw portion 6 of the screw threaded joint 11 is formed in an inner peripheral portion of the lock nut 12. The width of the notch 42 is formed to be permeable (removable) to the size of the cable 3.

The lock nut 12 is screwed to the fixing male screw portion 6 that is inserted through the hole 4 of the member 2 to be mounted. By twisting the lock nut 12 into the fixing male screw portion 6, the flanged portion 17 of the threaded joint 11 and the lock nut 12 grip the mounted member 2, and the threaded joint 11 is fixed to the mounted member. 2. In other words, the lock nut 12 is a member that cooperates with the flange portion 17 to hold the mounted member 2.

As shown in FIGS. 12 to 14, the tightening cap 13 is formed by combining two members. The two members are the outer side cap body 43 on the left side and the inner cap body 44 fitted inside the outer cap body 43 in FIG.

The outer cap body 43 and the inner cap body 44 are formed to have C-shaped cross-sections of the notches 45 and 46, respectively. The opening width of the notches 45, 46 is formed to be permeable (removable) to the size of the cable 3. According to this embodiment, the outer side cap body 43 and the inner side cap body 44 are respectively formed of a plastic material.

The inner peripheral portion of the outer cap body 43 is formed to be engageable with the outer peripheral portion of the inner cap body 44. As shown in FIG. 13, a plurality of grooves 47 extending in the longitudinal direction of the cable 3 are formed in the inner peripheral portion in a state of being aligned in a circumferential direction at a predetermined interval. Further, a first convex portion 48 that is fitted into the notch 46 of the inner cap body 44 is formed in the outer cap body 43. In this embodiment, the first convex portion 48 constitutes a "convex portion" in the invention described in the second aspect of the patent application.

The first convex portion 48 is configured to hold the axial center of the cap 13 It is disposed on the opposite side of the notch 45 of the outer cap body 43. In other words, the notches 45 of the outer cap body 43 and the notches 46 of the inner cap body 44 are located at mutually different positions in the rotational direction of the torsion cap 13 .

The female screw portion 50 connected to the female screw portion 49 of the inner cap body 44 to be described later is formed in the first convex portion 48.

A plurality of protrusions 51 fitted to the groove 47 are provided in the outer peripheral portion of the inner cap body 44. Further, in the outer peripheral portion of the inner cap body 44, a second convex portion 52 that is fitted into the notch 45 of the outer cap body 43 is formed. In other words, the inner cap body 44 is fitted inside the outer cap body 43 so as not to be rotatable relative to the outer cap body 43.

In the inner peripheral portion of the inner cap body 44, a female screw portion 49 that is screwed to the male screw portion 16 of the jig 11 is formed. The female screw portion 13a (see FIG. 14) of the tightening cap 13 according to this embodiment is configured by the female screw portion 49 and the female screw portion 50 of the first convex portion 48.

As shown in FIG. 4 and FIG. 14, the inner cap portion of the outer cap body 43 is assembled with the inner cap body 44, and the inner peripheral portion of the cap portion 13 is formed on the opposite side of the threaded joint 11 Bevel 53. The inclined surface 53 is formed to gradually increase the inner diameter from the front end of the tightening cap 13 toward the rear end (one end in the direction of the flange portion 17 of the threaded joint 11). Further, the inclined surface 53 is formed to be in contact with the front ends of the plurality of pressing pieces 41 from the outer side in the diameter direction. In other words, by twisting the tightening cap 13 into the jig male thread portion 16 of the threaded joint 11, the inclined surface 53 presses the pressing piece 41 toward the inner diameter in the diameter direction.

Each of the pressing pieces 41 is formed of a flexible plastic material, and is supported by the male screw portion 16 of the jig by a so-called one-sided support. For this reason, the pressing piece 41 is pressed toward the center in the radial direction by the contact with the inclined surface 53, and the rubber sleeve 26 is pressed from the outer side in the diameter direction toward the smaller diameter.

In other words, the cable clamp 1 according to the embodiment includes a jig structure in which the rubber sleeve 26 is pressed in a direction in which the diameter of the rubber sleeve 26 is reduced by twisting the tightening cap 13 into the jig male screw portion 16 of the threaded joint 11 54 (refer to Figure 4). This jig structure 54 is constituted by a pressing piece 41 and a slope 53.

The rubber sleeve 26 pressed by the plurality of pressing pieces 41 is elastically deformed so as to be small in diameter, and is in close contact with the cable 3. As a result, the cable 3 is held by the threaded joint 11 through the rubber sleeve 26, and the cable 3 and the threaded joint 11 are also sealed by the rubber sleeve 26.

The inner cap body 44 receives a reaction force from the cable 3 side by being screwed into the jig male thread portion 16 of the threaded joint 11. This reaction force acts in the direction in which the inner cap body 44 expands wide toward the opening of the notch 46. However, the inner cap body 44 is fitted into the outer cap body 43, and the end portion which is the open end of the notch 46 is supported from the outside by the outer cap body 43. For this reason, the expansion of the inner cap body 44 does not occur, and the tightening cap 13 can be firmly screwed into the male thread portion 16 for the jig.

Next, the procedure for supporting the cable 3 to the member 2 to be mounted using the cable jig 1 thus constructed will be described. First, as shown in FIG. 2, the cable 3 is passed through the hole 4 of the member 2 to be mounted. Next, as shown in FIG. 15, the first threaded joint half 14 and the second threaded joint half 15 of the threaded joint 11 are held by the cable 3 on the outer side (for example, the outer side of the switchboard) than the mounted member 2. And The way of being stored inside is combined. The first threaded joint half portion 14 and the second threaded joint half portion 15 are in which the first rubber sleeve half portion 24 and the second rubber sleeve half portion 25 are attached in advance.

Thereafter, the fixing male screw portion 6 of the threaded joint 11 formed by joining the second threaded joint half portion 15 to the first threaded joint half portion 14 is inserted into the hole 4, as shown in Fig. 16, in the comparative member 2 The cable 3 is mounted to the lock nut 12 on the inside. This operation is performed by passing the cable 3 through the notch 42 of the lock nut 12. After the locking nut 12 is tightened to the fixing male screw portion 6 to fix the threaded joint 11 to the mounted member 2, as shown in FIG. 17, the cable 3 is inserted outside the mounted member 2 to the outside. Tighten the cap 13. This operation is performed by passing the cable 3 through the notch 45 of the outer cap body 43 and passing the cable 3 through the notch 46 of the inner cap body 44.

Next, as shown in FIG. 18, the inner cap body 44 is fitted into the outer cap body 43 to form the tightening cap 13. The tightening cap 13 is moved toward the jig male screw portion 16 of the screw joint 11 and screwed into the jig male screw portion 16. At this time, the plurality of pressing pieces 41 of the threaded joint 11 are brought into contact with the inclined surface 53 of the tightening cap 13. In this state, as shown in FIG. 1A, by pressing the tightening cap 13 into the male thread portion 16 for the jig, the pressing piece 41 is pressed against the rubber sleeve 26, and the rubber sleeve 26 is closely attached to the cable 3. . In this way, by screwing the tightening cap 13 to the threaded joint 11, the cable 3 is fixed to the member 2 to be attached by the cable clamp 1, and the cable penetration portion of the member 2 to be mounted can be sealed. According to this seal, it is possible to map the waterproof and dustproof of the cable penetration portion. According to this embodiment, it is possible to provide a cable clamp having a waterproof/dustproof performance of a protection level of IP67.

Therefore, with the cable clamp 1 according to this embodiment, even if the members are detachable from the cable 3 in a direction orthogonal to the longitudinal direction of the cable 3, even the cable provided with the connector 5 3 can also be used.

Further, according to this embodiment, since the inner cap body 44 of the tightening cap 13 is fitted into the outer cap body 43, the tightening cap 13 can be firmly screwed into the male thread portion 16 for the jig. . For this reason, although the rubber sleeve 26 is divided into two, high sealing property can be obtained.

Therefore, according to this embodiment, it is possible to provide a cable jig capable of using the cable 3 provided with the connector 5 while maintaining high sealing performance.

In the outer cap body 43 according to this embodiment, a first convex portion 48 that is fitted into the notch 46 of the inner cap body 44 is formed. In the first convex portion 48, a female screw portion 50 that cooperates with the inner cap body 44 to form the female screw 13a of the tightening cap 13 is formed.

Therefore, by screwing the female screw portion of the outer cap body 43 and the jig male screw portion 16 of the screw joint 11, the outer cap body 43 can be restricted from coming off the inner cap body 44. Therefore, according to this embodiment, although the tightening cap 13 is formed to be divided into the outer cap body 43 and the inner cap body 44, since it can be used as a tightening cap 13, it is possible to provide a convenient use. Cable clamp.

In the rubber sleeve 26 according to this embodiment, the O-ring portions 24c, 25c which are exposed at the end faces of the flange portion 17 directed to the lock nut 12 are formed.

The O ring portions 24c and 25c are formed to surround the fixing male screw portion 6 as viewed in the axial direction of the screw joint 11.

The O-ring portions 24c, 25c substantially have a convexity as the sealing threaded joint 11 The function of the sealing member between the edge portion 17 and the member 2 to be mounted. For this reason, according to this embodiment, it is possible to provide a cable clamp having a higher sealing property.

The jig configuration 54 according to this embodiment is formed by the plurality of pressing pieces 41 and the inclined faces 53 of the tightening caps 13. The plurality of pressing pieces 41 protrude from the jig male thread portion 16 of the threaded joint 11 toward the longitudinal direction of the threaded joint 11 so as to be positioned between the rubber sleeve 26 and the tightening cap 13 . The inclined surface 53 is formed on the inner peripheral portion of the tightening cap 13 so as to be in contact with the front end portions of the plurality of pressing pieces 41.

For this reason, according to this embodiment, since the number of parts is reduced as compared with the use of the parts for pressing the rubber sleeve 26, it is possible to provide a cable jig which is easy to disassemble and assemble.

(Second embodiment)

The jig structure can be configured as shown in FIGS. 19 and 20. In FIGS. 19 and 20, the same or equivalent components as those described with reference to FIGS. 1A and 1B to 18 are denoted by the same reference numerals, and detailed descriptions thereof will be omitted as appropriate.

The male screw portion 16 for the jig of the threaded joint 11 shown in Fig. 19 and Fig. 20 is not provided with the plurality of pressing pieces 41 shown in the first embodiment, but is formed in a cylindrical shape having the male screw 16a at the outer peripheral portion. Therefore, as shown in FIG. 20, the tubular portions 29 and 30 of the rubber sleeve 26 protrude further in the longitudinal direction than the threaded joint 11 (the male screw portion 16 for the jig).

The binding ring 61 is fitted into the tubular portions 29 and 30. The binding ring 61 cooperates with the inclined surface 53 of the tightening cap 13 to constitute the jig configuration 54 according to this embodiment. The inclined surface 53 is formed on the inner peripheral portion of the tightening cap 13 so as to be in contact with the outer peripheral portion of the fastening ring 61.

The fastening ring 61 is formed into a specific shape by using a flexible plastic material. The binding ring 61 has a plurality of pressing portions 62 that are arranged in the circumferential direction, and a breaking portion 63 that divides the ring body formed by the plurality of pressing portions 62 in one circumferential direction (see FIG. 20). . The plurality of pressing portions 62 are coupled to each other within a range in which the breaking portion 63 is excluded.

The pressing portion 62 is formed by the first pressing piece 64 that extends in the longitudinal direction of the cable 3 and is inclined in one direction in the circumferential direction, and the other direction that extends in the longitudinal direction of the cable 3 and faces in the circumferential direction. The inclined second pressing piece 65 has a V shape. An inclined surface 61a that comes into contact with the inclined surface 53 of the tightening cap 13 is formed in an end portion of the pressing portion 62 on the side opposite to the threaded joint 11.

In the cable jig 1 having the binding ring 61 thus constructed, the tightening cap 13 is screwed into the jig male thread portion 16, so that the diameter of the binding ring 61 is made small, and the rubber sleeve 26 is pressed. Cable 3 is in close contact.

Therefore, according to this embodiment, since the force applied to the tightening cap 13 can be efficiently transmitted to the rubber sleeve 26 by the tightening ring 61, it is possible to provide a small force although the twisting of the cap 13 is small. A cable clamp with high sealing properties can also be obtained.

(Third embodiment)

The jig structure can be configured as shown in Figs. 21 to 23 . In FIGS. 21 to 23, the same or equivalent members as those described with reference to FIGS. 1A and 1B to 18 are denoted by the same reference numerals, and detailed description thereof will be appropriately omitted.

The male screw portion 16 for the jig of the threaded joint 11 shown in Figs. 21 and 22 is not provided with the plurality of pressing pieces 41 shown in the first embodiment, but is formed in a cylindrical shape in which the male screw 16a is formed on the outer peripheral portion.

In the tubular portions 29, 30 of the rubber sleeve 26 according to this embodiment, two annular projections 71, 72 which are juxtaposed in the longitudinal direction of the cable 3 are integrally formed. These annular projections 71 and 72 are formed on the outer peripheral portion of the tubular portions 29 and 30 so as to continuously extend in the circumferential direction without being cut. These annular projections 71, 72 cooperate with the inclined surface 53 of the tightening cap 13 to constitute the clamp structure 54 according to this embodiment. The inclined surface 53 is formed on the inner peripheral portion of the tightening cap 13 so as to be in contact with the outer peripheral portion of the first annular projection 71 located on the distal end side of the rubber sleeve 26 among the two annular projections 71 and 72.

Among the two annular projections 71 and 72, the other annular projection 72 is formed to face the front end surface of the male thread portion 16 of the jig 11 of the threaded joint 11.

According to this embodiment, the two annular projections 71, 72 are held between the inclined surface 53 and the male thread portion 16 of the jig by screwing the tightening cap 13 into the jig male thread portion 16 of the threaded joint 11. At the same time, the first annular projection 71 is pressed toward the inner side in the radial direction. As a result, as shown in FIG. 22, the small diameter portion 73 located between the two annular projections 71, 72 is elastically deformed toward the inner side in the radial direction. As a result, the small diameter portion 73 is elastically deformed, and the cable 3 can be fixed to the member 2 to be attached by the cable jig 1, and the cable penetration portion of the member 2 to be attached can be sealed.

In the cable clamp 1 according to the embodiment, compared with the case where the member for pressing the rubber sleeve (the pressing piece 41 shown in the first embodiment or the binding ring 61 shown in the second embodiment) is used, Make the structure simple. Again, according to In this embodiment, the entire circumferential direction of the annular projection 71 is directly pressed by the inclined surface 53 of the tightening cap 13, since the area pressure of the contact portion of the rubber sleeve 26 and the cable 3 is approximately equal across the entire circumferential direction, and thus there is also The advantage of being able to seal more reliably.

The rubber sleeve 26 according to this embodiment includes the first annular projection 71 and the second annular projection 72. However, the present invention is not limited thereto, and the rubber sleeve 26 may be provided only by providing the first annular projection 71.

1‧‧‧Cable fixture

6‧‧‧Fixed male thread

11‧‧‧Threaded joint

12‧‧‧Lock nut

13‧‧‧Tighten the cap

14‧‧‧1st threaded joint half

15‧‧‧2nd threaded joint half

16‧‧‧ Male thread for the fixture

17‧‧‧Flange

17a‧‧‧ engaging surface

24‧‧‧1st rubber sleeve half

25‧‧‧2nd rubber sleeve half

26‧‧‧Rubber sleeve

41‧‧‧Pressing tablets

42, 45, 46‧‧ ‧ gap

43‧‧‧Outer cap body

44‧‧‧Inside cap body

54‧‧‧Clamp construction

Claims (6)

A cable clamp characterized by comprising a cylindrical threaded joint in which a male screw portion for fixing is formed at one end portion, a male screw portion for a jig is formed at the other end, and a flange portion is formed at the center portion, and the inner portion is formed. The direction in which the longitudinal direction of the cable is orthogonal is divided into two; the C-shaped locking nut is a gap having a gap through which the cable can pass, and the above-mentioned fixing of the threaded joint in a state of being combined with the cable. The male screw portion is screwed and cooperates with the flange portion to hold the mounted member; the cap is screwed to the male screw portion of the screw joint that is in a coupled state after the cable is housed; The elastic sleeve is interposed between the threaded joint and the cable, and is divided into two in a direction orthogonal to the longitudinal direction of the cable corresponding to the threaded joint; and the clamp structure is used by the clamp When the threaded portion twists the torsion cap, the elastic sleeve is pressed in a direction in which the diameter is reduced. The torsion cap is formed by a C-shaped outer side cap body and a C-shaped inner cap. Body composition, front The outer cap body has a notch through which the cable can pass, the inner cap body has a notch through which the cable can pass, and is fitted to the outer cap body in a non-rotatable manner relative to the outer cap body internal The notch of the outer cap body and the notch of the inner cap body are located at different positions in the rotation direction of the torsion cap. The cable clamp of claim 1, wherein the outer cap body has a convex portion that fits into a notch of the inner cap body, and the convex portion has a cooperation with the inner cap body to constitute the tightening. The female thread of the female thread of the cap. The cable clamp of claim 1, wherein the elastic sleeve has an O-ring portion that is exposed in an end surface of the flange portion that is directed toward the lock nut; the O-ring portion is from the threaded joint. Viewed in the axial direction, the male screw portion is formed to surround the fixing. The cable clamp of claim 1, wherein the jig structure is configured by: a plurality of pressing pieces disposed between the elastic sleeve and the torsion cap, from the threaded joint The male screw portion of the jig protrudes in the longitudinal direction of the threaded joint; and the inclined surface is formed on the inner peripheral portion of the torsion cap so as to be in contact with the front end portion of the plurality of pressing pieces. The cable clamp according to the first aspect of the invention, wherein the one end portion of the elastic sleeve has a tubular portion that protrudes from a male screw portion of the jig toward a longitudinal direction of the threaded joint, and the jig structure has the aforementioned The cylindrical portion of the elastomer sleeve is embedded And a locking surface formed on the inner peripheral portion of the torsion cap, the locking ring being formed of a flexible material, and being in contact with the outer peripheral portion of the binding ring; a plurality of pressing portions arranged in the circumferential direction; and a dividing portion that divides the ring body composed of the plurality of pressing portions at one position in the circumferential direction, and the pressing portion uses the first pressing piece and the second pressing piece In the V shape, the first pressing piece extends in the longitudinal direction of the cable and is inclined in one direction in the circumferential direction, and the second pressing piece extends in the longitudinal direction of the cable, and is further in the circumferential direction. Tilt in one direction. The cable clamp according to the first aspect of the invention, wherein the one end portion of the elastic sleeve has a tubular portion that protrudes from a male screw portion of the jig toward a longitudinal direction of the threaded joint, and the jig structure has a ring shape. The protrusion is formed in a tubular portion formed in the elastic sleeve so as to extend in the circumferential direction, and the inclined surface is formed on the inner circumference of the torsion cap so as to be in contact with the outer peripheral portion of the annular projection. unit.