JPS6246891Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a control cable connector for connecting an outer cable of a control cable consisting of an inner cable and an outer cable, and which is particularly easy to connect and disconnect. This invention relates to an improved control cable connector that can reliably connect outer cables.

<Prior Art> Although a number of control cable connectors have been known in the past, none has been found that fully satisfies the requirements of easy attachment and detachment, reliable connection, and low cost. For example, in the specification of Utility Model Application No. 59-122519 filed by the same applicant, a protrusion provided around the outer periphery of a guide pipe,
A cable connector has been proposed that reliably grips an outer cable by resiliently engaging a groove provided around the inner circumference of the sleeve. However, while it is easy to attach and detach, and a reliable connection is possible, high dimensional accuracy is required for the fitting part of the guide pipe and sleeve in order to ensure the connection, and quality control is required. However, it tends to become complicated, which could be a factor in the rise in the manufacturing and processing costs of connectors.

<Problems to be solved by the invention> In view of the problems of the prior art, the main purpose of the present invention is to provide a control cable that is easy to attach and detach, and that is highly manufacturable and can connect the outer cable reliably. Our goal is to provide connectors.

<Means for Solving the Problems> According to the present invention, such an object is achieved by providing at least one axial slit provided at the first end, and at least one axial slit provided at the inner periphery of the first end. a guide pipe having a locking means provided on the outer periphery of the first end, a locking portion provided on the outer periphery of the first end, and an engaging portion provided on the second end; A cylindrical control cable connector for connecting an outer cable of a control cable, which has a mating locking part on the inner circumferential part and a sleeve fitted so as to be slidable in the axial direction of the guide pipe. The guide pipe may include a tapered threaded portion provided on the outer periphery of the first end of the guide pipe, and a corresponding threaded portion provided on the inner periphery of the sleeve so as to be able to be threadedly engaged with the tapered threaded portion. This is achieved by providing a control cable connector featuring:

<Function> In this way, the end of the outer cable can be reliably gripped by simply moving and twisting the sleeve slidably fitted around the outer circumference of the guide pipe, so that the control cable Preventing the connector from coming off is extremely easy. Furthermore, since the sleeve is elastically locked, the gripping force of the guide pipe on the end of the outer cable is unlikely to be lost, and the outer cable can be connected extremely reliably. In addition, since it is tightened with a tapered screw, reliability will not be lost even if the machining accuracy is relatively loose.

<Embodiments> Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 4 show a first embodiment of a control cable connector according to the present invention. In the first end 18 of the guide pipe 1, shown on the right side of FIG. 1, four axial slits 2 are cut at equal intervals. The guide pipe 1 is attached to the inner circumference of the first end 18 of the guide pipe 1.
A hole 3 whose diameter is relatively reduced with respect to the inner hole at the center of the hole is defined, and three annular protrusions 4, 5 and 6 are arranged at intervals in the axial direction on the inner peripheral surface of the hole. It is surrounded. As shown in the figure, the axial widths a, b, and c of these annular protrusions are formed to have different sizes.

As clearly shown in FIGS. 2 and 3, the first end 18 of the guide pipe 1 has a convex tapered thread 8 on its outer periphery, the thread height of which gradually increases in a tapered manner. It is set up. Furthermore, an annular protrusion 7 is provided around the tapered screw 8 at a position slightly closer to the proximal end.

A sleeve 10 is slidably fitted on the outside of the guide pipe 1, and a tapered thread that can be screwed into the tapered thread 8 is provided on the inner peripheral part of the guide pipe 1 corresponding to the first end 18. A groove 9 is recessed. Furthermore, an annular groove 11 is provided around the inner periphery of the sleeve 10, which can engage with the annular protrusion 7 when the sleeve 10 and the tapered threaded portions of the guide pipe 1 are completely screwed together.

The outer periphery of the second end 12 of the guide pipe 1 is formed in a hexagonal cross section, and a thread groove 13 is cut in the inner periphery of the end.

Next, the procedure for attaching and detaching the control cable connector based on the present invention will be explained with particular reference to FIG.

First, with the sleeve 10 slid toward the second end 12, one control cable A is inserted into the first end 18 of the guide pipe 1 and passed through the guide pipe 1. second end 12
protrude from Next, the inner cable connector 15a of the first control cable A and the inner cable connector 14a of the second control cable B are connected to each other, and the outer thread 16 of the outer cable end of the second control cable B is connected to each other.
and the thread groove 13 of the second end 12 of the guide pipe 1
and screw them together. Furthermore, the end 17 of the first control cable A and the first end 1 of the guide pipe 1
8 and the hole 3, and the annular protrusions 4, 5, and 6 provided in the hole 3 are fitted into the corresponding annular recess provided in the end 17 of the outer cable of the first control cable A.

In this state, the sleeve 10 is slid toward the first end 18 of the guide pipe 1, and the tapered thread groove 9 of the sleeve 10 and the tapered thread 8 of the guide pipe 1 are
and screw them together. When these two are sufficiently screwed together, an annular groove 1 provided on the inner circumference of the sleeve 10 is formed.
1 and an annular protrusion 7 provided on the outer periphery of the first end 18 of the guide pipe 1 are resiliently engaged.

Therefore, the pressure contact force is exerted by the threading of the tapered screw, and the end 17 of the first control cable A is securely gripped by the hole 3 of the guide pipe 1, and the engagement between the annular protrusion 7 and the annular groove 11 is ensured. Since the threaded state of the tapered screw is restricted by the engagement, loosening of the tapered screw is prevented. At this time, in the case of this embodiment, the width in the axial direction of the annular protrusions 4, 5, and 6 provided on the inner circumference of the first end 18 of the guide pipe 1 is increased as the outer side becomes larger. End 17 of one control cable A
However, the guide pipe 1 always has the same plunge depth.
It will be gripped by the hole 3 of.

Next, the length of the outer cable can be made appropriate by appropriately adjusting the screwing depth of the second control cable B into the second end 12 of the guide pipe 1 as needed.

FIG. 5 shows another embodiment of the invention in which the second end 12 of FIG. 1 of a pair of control cable connectors similar to those of the previous embodiment is provided with external threads. These second ends 12
They are connected to each other by a nut. Specifically, the first end of the guide pipe 21 on the right side in FIG. A sleeve 28 similar to that described above and having a hole 23 is fitted therein. However, the second end of the guide pipe 21 is externally threaded.

Guide pipe 31 shown on the left side of FIG.
is similar to the above in that an axial slit 32 is cut in the first end and a sleeve 38 is fitted therein, but the hole 33 for gripping the end of the control cable is provided with the An internal thread groove is cut in place of the protrusion. Further, the second end of the guide pipe 31 is provided with an external thread, similar to the guide pipe on the right side.

Furthermore, by making the directions of the external threads cut in these second ends opposite to each other, and screwing together the nuts 40 with corresponding internal thread grooves cut into both of these external thread parts, both guides can be formed. The pipes 21 and 31 can be connected to each other in turnbuckle fashion. At this time, the marks displayed on the six sides of the nut 40 can be used as a guide for adjustment.

As described above, according to the present invention, the locking means provided on the inner circumference of the first end of the guide pipe is not limited to the annular protrusion having unequal widths as shown in FIG. As shown on the left side of the figure, it may be an internal thread groove, or it may be a plurality of annular protrusions having the same width provided at unequal intervals. Furthermore, the locking part provided on the outer periphery of the first end of the guide pipe is not limited to the one shown in the drawings, and works in conjunction with the corresponding locking part provided on the inner periphery of the sleeve to extend along the axial direction of the sleeve. Other configurations are also possible as long as the movement can be elastically stopped. Furthermore, the engagement portion at the second end of the guide pipe is not limited to the internal thread or external thread shown in the above embodiments, but other known engagement portions may be used. Furthermore, by making the second end of the guide pipe similar to the first end,
It is also possible to further simplify the connection of the outer cable.

In addition, in order to match the screwing start positions of the tapered screws by simply sliding the sleeve onto the first end of the guide pipe, a guide ridge is provided protruding along the axial direction on the outer periphery of the guide pipe, and By recessing the inner periphery with guide grooves corresponding to the guide ridges, it is possible to further simplify the mounting of the connector.

<Effects of the invention> As described above, according to the invention, it is possible to reliably connect the outer cable simply by sliding and twisting the sleeve in the axial direction, and furthermore, it is possible to connect the outer cable reliably by simply sliding the sleeve in the axial direction and twisting it. It is possible to easily ensure prevention of dislodgement without using other external means such as using Furthermore, since the dimensional accuracy of the fitting portion between the sleeve and the guide pipe may be relatively loose, production costs are reduced.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a control cable connector based on the present invention. 2 is an enlarged perspective view of a main part of the first end of the control cable connector shown in FIG. 1. FIG. 3 is a side view of the first end of the control cable connector shown in FIG. 1; FIG. FIG. 4 is a perspective view showing how the control cable connector shown in FIG. 1 is connected. FIG. 5 is a partial vertical sectional view showing another embodiment of the control cable connector according to the present invention. DESCRIPTION OF SYMBOLS 1... Guide pipe, 2... Axial slit, 3... Hole, 4-7... Projection, 8... Taper thread, 9... Taper thread groove, 10... Sleeve, 1
DESCRIPTION OF SYMBOLS 1... Annular groove, 12... Second end part, 13... Inner threaded part, 14, 15... Inner cable, 14
a, 15a...Inner cable connector, 16...
...external thread, 17... end, 18... first end,
21... Guide pipe, 22... Axial slit, 23... Hole, 28... Sleeve, 31... Guide pipe, 32... Axial slit, 33...
...hole, 38...sleeve, 40...nut.

Claims (1)

[Claims for Utility Model Registration] At least one axial slit provided at a first end, locking means provided at an inner periphery of the first end, and an outer periphery of the first end. A guide pipe having a locking portion provided at the second end and an engaging portion provided at the second end, and a corresponding locking portion elastically engaging with the locking portion on the inner circumference. A cylindrical control cable connector for connecting an outer cable of a control cable having a sleeve slidably fitted in the axial direction of the guide pipe, the outer periphery of the first end of the guide pipe A control cable connector comprising: a tapered threaded portion provided on the sleeve; and a corresponding threaded portion provided on the inner periphery of the sleeve so as to be threadably engaged with the tapered threaded portion.