JP3052763U - Connector lock mechanism - Google Patents

Abstract

(57) [Problem] A lock mechanism that can be fitted at a fixed angle even if it does not have a guide function and cannot be locked except when there is a fitting position in the rotational direction because the lock mechanism acts at only one position in the rotational direction. To provide. SOLUTION: A connecting ring is formed at a position on the circumference of the receptacle body that is not even, a plug has a fitting concave groove only at a position where the connecting ring of the receptacle body fits, and a lockable position between the receptacle and the plug is provided. There is only one place.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention is a simple locking mechanism for a connector consisting of a plug and a receptacle.

[0002]

[Prior art]

 The conventional connector lock mechanism is a simple type that locks in one operation, a ball holder is used to arrange the retainer up and down so that the ball does not come out, or a mating surface that can swing around the outer periphery of the receptacle In many cases, an arm was arranged from the back of the arm and a ball was attached to the end. When these lock mechanisms are used, a sound or a worker's feeling is used to determine whether the connection is secure. The conventional simple locking device for a connector has the following disadvantages. First, when the connection is completed and it is confirmed that the connection is reliable, it often depends on the sound and the feel of the worker. Even if the connection is not reliable, it may not be easily distinguished from the outside. In addition, if there is a backlash in the positioning in the rotation direction or the like, locking may occur at a place other than the proper fitting place, which is inconvenient.

[0003]

[Problems to be solved by the invention]

 The object of the present invention is to eliminate the above-mentioned drawbacks of the prior art, so that even those having no guide function can be fitted at a fixed angle, and there is a fitting position in the rotating direction due to the lock mechanism acting in only one location in the rotating direction. An object of the present invention is to provide a locking mechanism that cannot be locked except when the vehicle is in operation.

[0004]

[Means for Solving the Problems]

 The means of the present invention, that is, the configuration is as follows.

As a lock mechanism having a plurality of cylindrical connection rings, in a connector mounted on a receptacle, the connection rings are arranged so as not to be even on the circumference of the receptacle body, while the connection ring is provided on the outer periphery of the plug core metal fitting. A recess is provided only in the portion where the connection ring fits, a movable ring is provided that can move back and forth around the outer periphery of the core metal fitting, and an elastic body is attached to a part of the ring to provide repulsion in the fitting direction. Then, the connecting ring hits the mating surface of the plug metal fitting in the middle of the fitting and is pushed in the outer peripheral direction, and then hits the front surface of the movable ring located on the inner circumference of the coupling of the plug and pushes backward, so that the connecting ring fits the core metal fitting. When the outer ring reaches the recess, the movable ring returns and locks. Since the connection ring is arranged so as not to be even on the circumference of the fitting surface, only one position can be locked in the rotation direction. With such a structure, the above problem is solved.

[0006]

[Embodiment of the invention]

 A specific example of the present invention will be described with reference to the drawings. FIGS. 1 and 2 show a single receptacle that is not fitted. Reference numeral 1 denotes a receptacle body, which has a flange on a part of its outer periphery. Reference numeral 2 denotes a notch groove, which is a part of the main body and has two locations from the fitting side toward the back, and is arranged so as not to be even on the circumference from the fitting surface.

[0007] Reference numeral 3 denotes a cut-out circular wire, which is mounted in an annular groove provided on a part of the outer periphery of the main body so that the annular groove fits into the cutout groove after passing through the connection ring 4. At the same position as the notch groove 2 of the main body that is press-fitted to the outer periphery of the main body, a cylindrical body 5 provided with a notch groove is mounted by a method such as press-fitting. FIGS. 3 and 4 are the same as those of FIGS. 1 and 2 except that the number of the cutout grooves 2 and the number of the connection rings 4 are different between the single receptacles.

[0008] In FIG. 5, FIG. 6, and FIG. 7, reference numeral 50 denotes a plug, which has a core metal fitting 18 having an insulator and a contact therein, which is screwed to an end bell 25, and provided on the outer periphery of a receptacle. A concave portion 4a is provided at a position where the connecting ring 4 is fitted, so that no matter where the number of the notch groove 2, the connecting ring 4, and the concave groove 4a is, only one connecting ring fits into the concave portion. It has become. Reference numeral 40 denotes a movable ring, which is provided with an elastic body 11 such as a coil spring sandwiched between the end faces of the end bell 25 so as to have a repulsive force on the mating side, and pushes the movable ring of the plug during the fitting of the connecting ring of the receptacle. When the connecting ring 4 is fitted in the concave groove 4a, the movable ring is pushed by the elasticity of the coil spring 11 and when all the connecting rings 4 are fitted in the concave groove 4a, the movable ring 40 is returned by the elasticity of the coil spring 11 to complete the lock. It is supposed to. At this time, if the connection ring 4 is not locked and does not fit into the concave groove 4a, the elasticity of the coil spring causes the movable ring to push the connection ring back and to disengage, as shown by the two-point intersection line in FIG. It has become. If the connecting ring 4 of the plug faces the concave groove 4a of the receptacle, the state shown in FIG. 9 is obtained. In the drawing, reference numeral 8 denotes a coupling, 9 denotes an insulator, 16 denotes a spring, 20 denotes a contact, 23 denotes a clamp nut, and 24 denotes a screw.

FIGS. 1 and 5 and FIGS. 3 and 7 show that the connection ring 4 and the concave groove 4a are symmetrical when facing each other so that only one place can be fitted. .

[0010]

[Effect of the invention]

 With the above structure, it is possible to easily confirm the connection by eyes with a simple one-touch type lock mechanism, which was difficult in the past. In addition, by preparing a connector having several types of connection ring positions, it is possible to prevent errors of the same type of connector.

[Brief description of the drawings]

FIG. 1 is a front view of a receptacle body.

FIG. 2 is a side view of the same.

FIG. 3 is a front view showing another specific example.

FIG. 4 is a side view of the same.

FIG. 5 is a front view of the plug.

FIG. 6 is a vertical side view of the plug.

FIG. 7 is a front view showing another specific example of the plug.

FIG. 8 is a partial cross-sectional view showing a state where a connection ring of a plug is fitted in a concave groove of a receptacle.

FIG. 9 is a side view showing a state where the plug and the receptacle face each other.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receptacle main body 2 Notch groove 3 Circular wire 4 Connection ring 4a Concave groove 11 Elastic body 18 Core fitting 25 End bell 40 Movable ring 50 Plug

Claims (1)

[Utility model registration claims] 1. A connector comprising a receptacle and a plug, wherein a lock mechanism having a plurality of cylindrical connection rings is mounted on the receptacle, wherein the connection rings are not positioned evenly on the circumference of the receptacle body. A connector locking mechanism, characterized in that the plug is provided with a fitting groove only in the cylinder where the connecting ring of the receptacle body is accommodated, and that there is only one locking position between the receptacle and the plug.