JP5890927B1 - Cable holder sleeve and cable holder using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a sleeve used for a cable holder compatible with a plurality of types of cables. A sleeve of a cable holder 1000 used for a lead-in port HK of a cable CA of a device KK such as an electric wire box, wherein seven sleeve pieces 310A to 310G are detachably combined in a balm-kuchen shape. The sleeve pieces 310A to 310G are formed in a truncated cone shape with through holes 311A to 311G formed in the axial direction, and slits 312A to 312G reaching the through holes 311A to 311G in the axial direction from the circumferential surface are formed. ing. [Selection] Figure 1

Description

  The present invention relates to a sleeve of a cable holder used for a cable inlet of a device such as an electric wire box, and a cable holder using the sleeve.

  For example, the cable holder used for the cable entry port of equipment such as industrial robots, industrial machines, and electric wire boxes is composed of a main body that is mounted on the wall of the equipment by a lock nut, and the outer peripheral surface has a truncated cone shape in a side view. And a cap formed with a female screw that fits into a male screw formed on the outer peripheral surface of the main body.

Japanese Patent Laid-Open No. 10-294575

  However, the conventional cable holder needs to develop a plurality of types of sizes according to the thickness of the cable to be held. In addition, the size of the opening formed in the wall of the device or the like has been changed accordingly.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a sleeve of a cable holder that can handle a plurality of types of cables, and a cable holder using the sleeve.

A sleeve of a cable holder according to the present invention is a sleeve of a cable holder used for a cable drawing port of a device such as an electric wire box, and a plurality of sleeve pieces are combined in a balm-kuchen shape so as to be divided. The small piece has a truncated cone shape with a through hole formed in the axial direction, and each sleeve piece is exposed from the through hole of the sleeve piece that is one larger than the self, and has a slit that reaches the through hole in the axial direction. Is formed.
Moreover, the thickness of the cable to be inserted and held is stamped on the end face of the sleeve piece of the sleeve of the cable holder according to the present invention.

The cable holder according to the present invention is a cable holder used for a cable drawing port of a device such as an electric wire box, and a main body in which a through-hole through which a cable passes is formed and an outer male screw is formed on an outer peripheral surface; A sleeve fitted into the through hole of the main body, and a cap formed with a female screw fitted to the outer male screw of the main body, and the sleeve is combined in a balm couchen shape so that a plurality of sleeve pieces can be divided. The sleeve pieces are frustoconical in side view with through-holes formed in the axial direction, and each sleeve piece is exposed from the through-hole of the sleeve piece that is one larger than the end face and penetrates in the axial direction. A slit reaching the hole is formed.

A sleeve of a cable holder according to the present invention is a sleeve of a cable holder used for a cable drawing port of a device such as an electric wire box, and a plurality of sleeve pieces are combined in a balm-kuchen shape so as to be divided. The small piece has a truncated cone shape with a through hole formed in the axial direction, and each sleeve piece is exposed from the through hole of the sleeve piece that is one larger than the self, and has a slit that reaches the through hole in the axial direction. Since it is formed, by adjusting the sleeve piece, it is possible to cope with cables having different thicknesses by one type of sleeve.
In addition, since the sleeve piece is formed in a truncated cone shape when viewed from the side, when the sleeve is inserted into the through hole of the cable holder body and pressed by the cap, the sleeve itself contracts toward the cable, so it is more rigid. There is an advantage that the cable can be held.

Further, since the thickness of the cable to be inserted and held is engraved on the end face of the sleeve piece constituting the sleeve of the cable holder according to the present invention, which sleeve piece is excluded depending on the cable to be inserted. There is an advantage that it becomes clear at a glance.

  Further, if a slit reaching the through hole in the axial direction is formed in the sleeve piece, the slit can be widened at the time of removing the sleeve piece or inserting the cable, so that workability is improved.

It is drawing of the sleeve of the cable holder which concerns on embodiment of this invention, Comprising: The figure (A) is a schematic front view, The figure (B) is a schematic partial sectional view. It is a schematic exploded perspective view of the sleeve of the cable holder which concerns on embodiment of this invention. It is a schematic partial sectional view of the cable holder which concerns on embodiment of this invention. It is a schematic partial sectional view which shows the use condition of the cable holder which concerns on embodiment of this invention.

First, a cable holder 1000 in which the sleeve 300 according to the present invention is used will be described with reference to FIGS. 3 and 4.
This cable holder 1000 is a cable holder used as a cable CA lead-in port for equipment such as an electric wire box. The cable holder 1000 has a through hole 140 through which the cable CA passes, and an outer male screw 120 formed on the outer peripheral surface. A main body 100, a sleeve 300 that fits into the through-hole 140 of the main body 100, and a cap 200 in which a female screw 210 that fits into the outer male screw 120 of the main body 100 is formed.

  Of the main body 100, the sleeve 300, and the cap 200 constituting the cable holder 1000, the main body 100 and the cap 200 are resin molded products such as polypropylene. The sleeve 300 is processed from butyl rubber or the like.

First, the main body 100 is formed in a substantially cylindrical shape, and a flange 110 is integrally formed. On the outer peripheral surface of the main body 100, there are an outer male screw 120 into which the cap 200 is screwed on both sides of the flange 110, and an inner male screw 130 into which a ring-shaped lock nut 400 for attaching the main body 100 to the device KK is screwed. Is formed. The outer male screw 120 into which the cap 200 is screwed is set to have a larger diameter than the inner male screw 130 into which the lock nut 400 is screwed.
Further, a tapered step 150 for regulating one end surface of a sleeve 300 described later is formed in the middle of the through-hole 140 of the main body 100. This is also because the outer male screw 120 and the inner male screw 130 have different diameters.

The cap 200 is formed in a substantially cylindrical shape in which a female screw 210 corresponding to the outer male screw 120 is formed on the inner peripheral surface. In addition, since the cap 200 has an inward flange 230 formed at the edge of the outer opening 220, the outer opening 220 has an inner opening 240 (the opening on the side where the female screw 210 is formed). Part)). The inward flange 230 is attached to the main body 100 and presses the sleeve 300.
In addition, the outer peripheral surface of the cap 200 is formed with unevenness that becomes a hook when the cap 200 is attached and detached.

  Further, a torsion preventing washer 250 is fitted inside the opening 220 outside the cap 200. The twist preventing washer 250 comes into contact with the edge of the sleeve 300 when screwed into the main body 100 and reduces friction between the sleeve 300 and the cap 200. The twist preventing washer 250 has a tapered surface 251 where the edge of the sleeve 300 contacts. In addition, two claw portions (not shown) are formed in a portion where the twist preventing washer 250 fits into the opening 220 of the cap 200, and by hooking the claw on the edge of the opening 220, A torsion preventing washer 250 is rotatably fitted inside the opening 220 of the cap 200.

  The lock nut 400 has a female screw 410 corresponding to the inner male screw 130 formed on the inner peripheral surface thereof. The main body 100 is attached to the device KK by inserting the inner male screw 130 of the main body 100 into the inlet HK established in the device KK and tightening the lock nut 400 via the packing 500.

The sleeve 300 used in the cable holder 1000 configured as described above is a sleeve of the cable holder 1000 used in the cable port HK of the cable CA of the device KK such as an electric wire box, and has seven sleeve pieces 310A to 310G. The sleeve small pieces 310A to 310G are formed in a truncated cone shape in a side view in which through holes 311A to 311G are formed in the axial direction.
That is, the feature of this sleeve 300 is that it is not a single piece like the conventional sleeve, but is a combination of seven sleeve pieces 310A to 310G.
Further, as shown in FIGS. 1B, 3 and 4, the sleeve pieces 310B to 310G are exposed from the through holes 311A to 311F of the sleeve pieces 310A to 310F, both of which are end faces larger than the self. There is a feature that.
Needless to say, the sleeve of the cable holder according to the present invention is not limited to seven sleeve pieces, but is composed of a plurality of sleeve pieces.

In addition, the thickness of cable CA which should be inserted and hold | maintained is stamped on the end surface of each sleeve small piece 310A-310G. For example, the sleeve piece 310A is φ27 to 32 (mm), the sleeve piece 310B is φ22 to 27 (mm), the sleeve piece 310C is φ16 to 22 (mm), the sleeve piece 310D is φ12 to 16 (mm), and the sleeve piece 310E is φ8 to 12 (mm), the sleeve piece 310F is φ5 to 8 (mm), the sleeve piece 310G is φ2 to 5 (mm), and so on.
Needless to say, the size of the cable CA to be held by each of the sleeve pieces 310A to 310G is not limited to the above.

The largest sleeve piece 310 </ b> A is set to have an outer diameter substantially equal to the maximum diameter portion of the inner diameter of the tapered step portion 150 in the through-hole 140 on the outer male screw 120 side of the main body 100. The inner diameter of the through hole 311A of the largest sleeve piece 310A is set substantially equal to the outer diameter of the second largest sleeve piece 310B. Accordingly, the second largest sleeve piece 310B can be fitted into the through hole 311A of the largest sleeve piece 310A.
In this way, the six sleeve pieces 310B to 310G, excluding the largest sleeve piece 310A, can be sequentially fitted into the through holes 311A to 311F of the sleeve pieces 310A to 310F which are one larger than the self. As a whole, it is formed in a Baumkuchen shape.

Each of the sleeve pieces 310A to 310G is formed with slits 312A to 312G that reach the through holes 311A to 311G in the axial direction from the circumferential surface.
Since the slits 312A to 312G are formed, if the sleeve pieces 310A to 310G are expanded from the slits 312A to 312G, the smaller inner sleeve pieces 310A to 310G can be easily attached and detached.

For example, the procedure in the case where the cable CA having a diameter of 20 mm is held by the cable holder 1000 will be described with reference to FIG.
First, a circular inlet HK is opened in the device KK. The lead-in port HK is constant regardless of the thickness of the cable CA to be inserted.
The inner male screw 130 of the main body 100 is inserted into the drawing port HK, and the lock nut 400 is screwed into the inner male screw 130 from the inside of the device KK. A packing 500 is interposed between the surface side of the device KK and the flange 110 of the main body 100.

  Since the cable CA to be held is φ20 mm, out of the seven sleeve pieces 310A to 310G, the sleeve pieces 310D to 310G are extracted while leaving the sleeve pieces 310A to 310C. When the sleeve pieces 310D to 310G are extracted, the slits 312D to 312G of the sleeve pieces 310A to 310G can be expanded, so that the extraction operation is facilitated.

The cable CA is inserted into the through hole of the sleeve 300 including the remaining three sleeve pieces 310A to 310C, that is, the through 311C of the sleeve piece 310C. Even when the cable CA is inserted, the slits 312A to 312C of the sleeve pieces 310A to 310C are expanded to facilitate the insertion operation.
If the cable CA is inserted through the opening 220 of the cap 200 before the cable CA is inserted through the sleeve 300, the operation is easy.

  The sleeve 300 and the cable CA are inserted through the through-hole 140 of the main body 100 from the outer male screw 120 side. At this time, the sleeve 300 is inserted into the through-hole 140 from the small diameter side of the truncated cone in side view.

The cap 200 is screwed into the outer male screw 120 of the main body 100. By screwing the cap 200, the sleeve 300 is pressed inward while being sandwiched between the tapered step portion 150 of the main body 100 and the inward flange 230 of the cap 200. Hold firmly.
Note that when the cap 200 is screwed, the torsion prevention washer 250 is interposed between the inward flange 230 of the cap 200 and the sleeve 300, so that friction between the sleeve 300 and the cap 200 is reduced.

  Thus, since this sleeve 300 is comprised from seven sleeve pieces 310A-310G, if it adjusts by insertion / extraction of each three sleeve pieces 310A-310G, it can be made to respond | correspond to the thickness of the cable CA which should be held. Note that the number of cables CA to be held is not limited to one, and a plurality of cables CA can be held together.

In the case of this type of conventional cable holder, it is necessary to select a cable according to the thickness of the cable CA to be held. However, in the case of the cable holder 1000 according to the embodiment of the present invention, the sleeve 300 is used. By adjusting the sleeve pieces 310 </ b> A to 310 </ b> G, there is an advantage that it is possible to cope with the cable CA having different thicknesses by one type of the sleeve 300.
Also, with this type of conventional cable holder, the size of the main body, cap, sleeve, etc. is selected according to the thickness of the cable CA to be held, so the device KK according to the thickness of the cable CA. In the cable holder 1000 according to the embodiment of the present invention, the size of the main body 100 and the like is the same even if the thickness of the cable CA is different. There is no need to change the size. That is, the work of checking the size of the cable holder 1000 at the time of opening the lead-in port HK is not required, so that workability is improved.

  In the above-described embodiment, the main body 100 is formed with the outer male screw 120 and the inner male screw 130 with the flange 110 interposed therebetween. However, as a means for fixing the main body 100 to the device KK, It is not limited to the lock nut 140. For example, it goes without saying that other means such as screwing a plurality of bolts from the outside into the peripheral surface on which the inner male screw 130 is to be formed may be used.

1000 Cable holder 100 Main body 200 Cap 250 Torsion prevention washer 300 Sleeve 310A to 310G Small sleeve 311A to 311G Through hole 312A to 312G Slit

Claims (3)

  A sleeve of a cable holder used for a cable drawing port of a device such as an electric wire box, and a plurality of sleeve pieces are combined in a balm-kuchen shape so that the sleeve pieces can be divided, and the sleeve pieces are formed with through holes in the axial direction. Cable holding, characterized in that it is frustoconical when viewed from the side, and each sleeve piece is exposed from the through hole of the sleeve piece that is one larger than itself, and is formed with a slit that reaches the through hole in the axial direction. Tool sleeve.   The sleeve of the cable holder according to claim 1, wherein a thickness of a cable to be inserted and held is stamped on an end face of the sleeve piece.   A cable holder used for a cable inlet of a device such as an electric wire box, which has a through-hole through which the cable passes and an outer male screw formed on the outer peripheral surface, and fits into the through-hole of the main body And a cap formed with an internal thread that fits with an external external thread of the main body, wherein the sleeve is a sleeve of a cable holder according to claim 1 or 2. Ingredients.

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