JPH06163108A - Connector easy to attach and detach - Google Patents

Abstract

PURPOSE:To obtain an inspection connector improved in attachment and detachment and easy to attach and detach when the connector is attached to and detached from a terminal hole of a machine, an apparatus, etc., checked for its operability. CONSTITUTION:A pushing means 7, 11 having peripheral short screw threads is disposed in a connector 1, pushable in inside-diameter direction. While the screw threads are retreated in pushing by hand from the peripheral surfaces, the connector 1 is inserted into a terminal hole 20. By releasing the pushing pressure after the insert in, the screw threads and a female screw in the terminal hole are mutually engaged. Accordingly, attachment/detachment to the terminal hole of apparatus, etc., is easy, so that work of maintenance or inspection is largely improved and breakage of a cable connected to the connector is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector which can be attached / detached to / from terminals provided in various facilities such as manufacturing factories, machines and devices such as aircrafts, ships, vehicles, etc. The present invention relates to a connector having a structure useful for connecting with a device.

[0002]

2. Description of the Related Art Electronic equipment, especially communication equipment, is provided with a plug terminal for connecting a communication cable or an antenna cable, but the terminal is used for adjustment inspection before factory shipment or for maintenance or maintenance after on-site installation. It is necessary to connect a measuring device and obtain various inspection data such as adjustment of each part and performance confirmation.

However, some large machines and devices have a plurality of terminal holes to be inspected, and a connector added to a measuring device cable is fitted into each terminal hole of many devices. Then, the work of checking is complicated. In particular, when the connector is a coaxial cable plug or a circular connector for a multi-needle cable bundle, both male and female connectors must be screwed, and it is troublesome to repeat the operation one by one for many devices. Not only that, but many rotations (screws) were repeated, resulting in frequent disconnection of the measuring instrument side cable at the connection part of the connector.

That is, since the conventional connector is provided with the screw thread which is screwed with the female screw portion on the inner circumference of the terminal hole over the entire circumference like the original connector which is inserted into the terminal hole, the terminal is In order to insert into the hole, the connector does not have to be rotated until both screw parts are completely screwed, and the same work is required when removing the connector. However, since the connector is connected to the measuring device etc. via a cable, it is not easy to rotate due to the cable being an obstacle, and the work of attaching and detaching the connector is extremely complicated, and as a result, the maintenance and inspection work is complicated. As described above, there is a drawback that the cable on the measuring instrument side is cut off.

From this point of view, the inventor of the present invention has specified an easily attachable / detachable inspection connector which has improved workability of attachment / detachment when the connector is attached / detached to / from a terminal hole of a machine or device to check the operation. It was proposed in Japanese Patent Application No. 2-412413. In this connector, a pressing means having a screw thread having a short circumferential length is provided in an appropriate position on the circumferential surface of the connector so as to be pushed inward in the inner diameter direction, and the screw thread is retracted from the circumferential surface by manual pushing before the connector is inserted into the terminal hole. It is designed to engage the screw thread with the female screw in the terminal hole by inserting the connector into the terminal hole and to release the pressure after mounting, making it easy to attach and detach the connector to the terminal hole of the equipment, maintenance and inspection. It is possible to greatly improve the workability at the time and prevent the cable connected to the connector from being cut.

However, this connector requires a manual operation to push in the pressing means during both mounting and removal of the connector, so that the operability is poor, and improvement of this point has been desired.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and the workability of attachment / detachment, particularly the operation at the time of attachment when attaching / detaching a connector to / from a terminal hole of a machine or device to check the quality of operation, etc. It is an object of the present invention to provide an inspection connector that has improved performance and is easy to attach and detach.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is a connector which is attached / detached in a cylinder of a tubular connector seat along its axial direction. The connector has a rod-shaped core and an outer periphery of the core. A hollow fixed cylindrical member having a fixed front end and an open rear end, and a front end inserted axially movably into a space formed between the outer peripheral surface of the core and the fixed cylindrical member. In addition, a movable tubular member having a rear end portion projecting rearward from the rear end portion of the fixed tubular member, a spring for constantly urging the movable tubular member in the projecting direction, and a fixed tubular member rear portion. A movable meshing piece having a screw thread which is located in the hollow large-diameter portion and which is engageable with the female screw portion formed on the inner peripheral surface of the tubular contact seat when the connector is mounted, and the screw thread of the movable meshing piece is externally provided. An opening formed in the large-diameter hollow portion for exposing, and a swinging bullet that swingably supports the movable meshing piece. Means, a first cam formed on the outer peripheral surface of the movable tubular member portion located on the inner diameter side of the movable meshing piece, and engaged with the first cam formed on the inner peripheral surface of the movable meshing piece And a lock member that operates when the movable tubular member is pushed forward to lock the movable tubular member to the fixed tubular member, and the movable meshing piece is the movable tubular member. When the member is in the projecting position, it is in the inner diameter position and cannot mesh with the female screw, and when the movable tubular member is pushed in, it projects outward in the outer radial direction by the cooperation of the first and second cams. It is characterized by being able to mesh with a female screw.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be described in detail with reference to the preferred embodiments shown in the accompanying drawings.

1 and 2 (a) and (b) are sectional views showing a procedure for mounting the inspection connector of the present invention in a terminal hole. FIG. 1 is a view before inserting the connector into the terminal hole and mounting both. It is a figure showing a state, and Drawing 2 (a) and (b) are AA sectional views showing a state where a connector was completely attached to a terminal hole, and a sectional view in a direction orthogonal to an axial direction.

This connector (connector) 1 includes a rod-shaped core 2, a hollow fixed cylindrical member 3 having a front end (left side in the drawing) fixed to the outer peripheral surface of the core 2 and a rear end opened.
The front end 6a is loosely fitted in the space 5 formed between the inner peripheral surface 3a of the fixed tubular member 3 and the outer peripheral surface of the core 2 so as to be movable back and forth in the axial direction, and the rear end 6b (right side of the drawing). ) Is temporarily bent in the outer diameter direction and then folded back to the front, and a hollow movable cylindrical member 6 and a projection of the movable cylindrical member 6 and the front end wall of the cavity 5 that is wound around the outer periphery of the core 2. A coil spring 7 that urges the movable tubular member 6 to the right in the drawing (projection direction) by being stretched between the fixed tubular member 3 and a hollow large-diameter portion 9 located at the rear end of the fixed tubular member 3. Have. The rear end of the movable tubular member 6 is positioned rearward beyond the rear end of the fixed tubular member 3.

A cable 8 is connected to the rear end of the core 2.

In the space 10 formed between the large hollow portion 9 of the fixed cylindrical member 3 and the movable cylindrical member 6, the movable meshing pieces 12 are arranged at intervals of 180 degrees in the circumferential direction. Then, an opening 15 is formed in the portion of the large diameter portion 9 corresponding to the screw thread 12a formed on the outer peripheral surface of each movable meshing piece 12 to form the screw thread 12a.
Expose a. A female screw 17a formed over the entire circumference on the inner circumference of the terminal hole 17 (in the cylinder of the tubular connector seat) provided in the machine or device can face the thread 12a through the opening 15.

Coil springs (swing elastic means) 19 and 20 are embedded and fixed at both axial ends of the movable meshing piece 12, and the other ends of the coil springs 19 and 20 are axially formed in the recess 10. Embedded in the inner walls of both ends and fixed.
Therefore, in the state shown in FIG. 1, the movable meshing piece 12 is depressed in the inner diameter direction by the force of the coil springs 19 and 20, and the screw thread 12a is not meshed with the female screw 17a of the terminal hole 17. In this embodiment, each coil spring 19,
Three 20s are provided respectively.

A recess 12b is formed at an appropriate position on the inner peripheral surface of the movable meshing piece 12, and the cam portion (first cam) 6d of the movable tubular member 6 is recessed in the unmounted state shown in FIG. Since the movable meshing piece 12 is designed to fall into the place (second cam) 12b, the movable meshing piece 12 can be held at the inner diameter side position by the force of the springs 19 and 20. It should be noted that the same function can be realized by forming a cam on the inner peripheral surface of the movable meshing piece 12 and forming a recess for engaging with the cam on the outer peripheral surface of the movable tubular member. It will be common sense of the trader. Therefore, regardless of which side the cam or the recess is provided on, the operating mechanism of the movable meshing piece including such a cam mechanism is included in the scope of the present invention.

Next, as shown in FIG. 1, the state in which the core 2 and the fixed cylindrical member 3 are pushed into the terminal hole 17 is further shown in FIG.
As shown in (a), when the movable tubular member 6 is pushed to the left in the drawing against the spring 7, the cam portion 6d protruding on the outer peripheral surface of the movable tubular member is relatively moved with respect to the movable meshing piece 12. Since it moves forward (backward), the cam portion 6d leaves the recess 12b and pushes up the movable meshing piece 12 in the outer diameter direction as shown in FIG. As a result, the screw thread 12a of the movable meshing piece can mesh with the female screw 17a.

The movable meshing piece 12 is composed of a coil spring 19,
Since it is swingably supported by 20, the movable meshing piece 12 slightly swings even if the screw thread 12a and the female screw 17a are not sufficiently meshed with each other in the process of pushing the movable cylindrical member 6. By doing so, it is possible to quickly shift to a completely meshed state.

Next, a description will be given of the lock member 25 arranged in a positional relationship of being displaced by 90 degrees with respect to the movable meshing pieces 12 provided at two positions at 180 degree intervals.

The lock member 25 has a support hole 26 penetrating the rear end folded-back portion 6b of the movable tubular member 6 in the inner and outer radial directions.
It is inserted into a stopper hole 28 formed in the large diameter portion 9 of the fixed tubular member 6 so as to communicate with 27 and the support holes 26, 27. The stopper hole 28 is composed of a large diameter hole 28a and an elongated hole 28b communicating with the large diameter hole 28a as shown in the lower right part of FIGS. 1 and 2 (a).

The lock member 25 is, as shown in FIG. 3, a pressing piece 25a exposed to the outside and a large-diameter cylindrical portion 25 which is integrated with the back surface of the pressing piece 25a and can be fitted into the support hole 26.
b, a small-diameter rod-shaped portion 25c integrally protruding from the center of the tubular portion 25b, a large-diameter hollow spring holding portion 25d integrated at an intermediate position of the rod-shaped portion 25c, and a rod-shaped portion 25c.
Has a large-diameter stopper piece 25e integrated with the tip end portion of the. The diameter of the rod-shaped portion 25c is set to a small diameter so that the rod-shaped portion 25c fits into the oblong holes 28b of the inner support hole 27 and the stopper hole 28 relatively closely, and the spring holding portion 25d has the large diameter hole of the stopper hole 28. The diameter is set to a large diameter so that it can be closely fitted inside 28a. Spring holding part 25d
Is a hollow cylindrical body that is open only at the upper side, and is a coil spring (return spring) 30 wound around the outer peripheral surface of the rod-shaped portion 25c.
Is stretched between the inner bottom portion of the holding portion 25d and the inner wall of the rear end folded portion 6b. Due to the force of the return spring 30, the lock member 2
5 is always elastically biased in the outer diameter direction (locking direction). Since the lock member 25 is assembled to the movable tubular member 6 by the support holes 26 and 27, it moves in the axial direction together with the movable tubular member 6.

When the movable tubular member 6 is projected as shown in FIG. 1, the rod-shaped portion between the spring holding portion 25d and the tubular portion 25b is located in the elongated hole 28b of the stopper hole 28. If so, the spring holding portion 25d becomes the large diameter hole 2
Since it is not fitted inside 8a, the movable tubular member 6 can be pressed axially forward (backward) against the spring 7. On the other hand, when the lock member 25 moves into the large diameter hole 28a by pushing the movable tubular member 6 axially forward, the force of the return spring 30 locks when the large diameter hole 28a and the spring holding portion 25d are aligned. Since the entire member 25 is pushed out in the outer diameter direction, the spring holding portion 25d is fitted in the large diameter portion 28a as shown in FIG. 2 (a), and the movable tubular member 6 is locked in the pushing position and moved in the axial direction. Prohibit In order to release this locked state, the pressing piece 25a located at the top of each locking member 25 may be pushed in with a finger. When the locking member 25 is pushed against the return spring 30, the spring holding portion 25d causes the stopper hole 28 to move. Since the movable tubular member 6 is detached from the large diameter hole 28a, the movable tubular member 6 is free to move in the axial direction, and is moved in the protruding direction by the spring 7.

The operation of the connector of the present invention having the above construction will be described.

First, the connector at the time of just inserting it into the terminal hole 17 has a movable cylindrical member 6 as shown in FIG.
Is in a protruding state. The state of the connector at this time is no different from the state before mounting in the terminal hole. In this way, when the connector 1 is not completely attached,
The cam 6d of the movable tubular member 6 is provided in the recess 12 of the movable meshing piece 12.
Since it is located inside b, the movable meshing piece 12 is held in the illustrated inner diameter side position (retracted position) by the coil springs 19 and 20, and the screw thread 12a is in a non-meshing state with the female screw 17a on the terminal hole 17 side. It is in. Further, at this time, since the small-diameter rod-shaped portion between the spring holding portion 25d of the lock member 25 and the tubular portion 25b is located inside the elongated hole 28b of the stopper hole 28, in other words, the spring holding portion 25d has a large diameter. Since it is not fitted in the hole 28a, the movable tubular member 6 can be pressed axially forward (backward) against the spring 7.

On the other hand, when the movable tubular member 6 is pushed against the spring 7 as shown in FIG. 2 (a),
Since the cam portion 6d moves to the left in the drawing along the inner wall of the recess 12b, the movable meshing piece 12 is pushed outward in the radial direction against the springs 19 and 20, and the screw thread 12a meshes with the female screw 21. At this time, the springs 19 and 20 appropriately swing the movable meshing piece 12 to contribute to the complete meshing of both screw portions. By such an operation, the inspection device is operated with the connector 1 mounted in the terminal hole 17 to perform the inspection and measurement required for maintenance and inspection.

The above description gives the impression that the inserting operation of the connector 1 and the pushing operation of the movable tubular member 6 are separate operations, but in reality, both are a series of operations and one-touch mounting is required. .

Next, when the connector 1 is to be detached from the terminal hole 17, the two lock members 25 may be simultaneously pushed by fingers to pull out the entire connector. That is, FIG.
When the lock member 25 in the state of is pushed in, the spring holding portion 25d is disengaged from the stopper hole 28 of the fixed tubular member 3, and the movable tubular member 6 is allowed to move in the protruding direction,
It is pushed out by the force of the spring 7 to be in the protruding state shown in FIG. At this time, since the screw thread 12a and the female screw 17a are in the non-engaged state, if the connector 1 is continuously pulled out as it is, the cables 8 can be detached smoothly and with one touch.

As described above, according to the present invention, the terminal hole 17 can be formed without rotating the connector 1 and without inserting the connector while pushing the pressing means as in Japanese Patent Application No. 2-412413. Since the screw thread 12a having a short circumferential length can be engaged with the female screw 17a extending over the entire circumference of the inner wall, not only is the connector easily attached, but also the lock member 25 is pushed once only when detaching. (Japanese Patent Application No. 2-41241
With No. 3, it is necessary to continue to push in the pressing means during pulling out.) Since it can be pulled out, it is extremely convenient for the work of repeating attachment and detachment of the connector such as inspection.

When connecting an original connector to a terminal hole provided in a machine or device, it is of course necessary to firmly connect it by complete screwing, but it is simply inspected whether or not the device operates properly. Since the connector for this purpose is to be removed as soon as the connection is completed and the check is completed, it is convenient that it can be easily attached and detached. Since the present invention has such convenience, regardless of the size of the machine or device, it is easy to attach and detach the inspection connector to and from the terminal portion provided on them, and the maintenance and inspection workability is greatly improved. can do.

[0029]

As described above, in the present invention, the forward / backward movement of the movable meshing piece 12 having a short screw thread in the radial direction is interlocked with the forward / backward movement of the movable tubular member 6, and the movable tubular member is projected. When in the position, the movable meshing piece 12 is retained in a state of being retracted from the peripheral surface of the connector so that the connector can be inserted into the terminal hole, and the threaded portion 12a of the movable meshing piece can be inserted by pushing the movable cylindrical member after mounting. Female screw in terminal hole 1
Since 7a and 7a are engaged with each other, the connector can be easily attached to and detached from the terminal hole of the device by a series of one-touch operations without special button operations, and the workability at the time of maintenance and inspection can be greatly improved. In addition, the disconnection of the cable connected to the connector can be prevented.

Further, when the connector is detached, the movable tubular member is returned to the projecting position only by lightly pushing in the lock member 25 for locking the movable tubular member 6 in the pushed-in position, and the thread 12a and the female screw in the terminal hole. Since the engagement with 17a can be released, it can be pulled out as it is.

[Brief description of drawings]

FIG. 1 is a diagram showing an initial state when a connector is inserted into a terminal hole.

2A and 2B are an AA cross-sectional view showing a state in which a connector is completely attached to a terminal hole and a cross-sectional view in a direction orthogonal to an axial direction.

FIG. 3 is a perspective view of a lock member.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Inspection connector (connector), 2 cores, 3 fixed tubular members, 5 voids, 6 movable tubular members, 7 coil springs, 8 cables, 9 hollow large diameter portion, 10 voids, 12 movable meshing pieces, 12a Thread, 15 openings,
17 female screw, 19, 20 coil spring (oscillating elastic means), 25 lock member, 25a pressing piece, 25b
Cylindrical part, 25c Rod part, 25d Spring holding part, 25e Stopper piece, 26, 27 Support hole, 28
Stopper hole, 28a large diameter hole, 28b elongated hole, 30 coil spring (return spring),

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[Procedure amendment]

[Submission date] January 13, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

Claims (1)

[Claims] 1. A connector which is detachably mounted in a cylinder of a tubular connector seat along its axial direction, wherein the connector has a rod-shaped core, and a front end portion is fixed to an outer periphery of the core and a rear end is opened. A hollow fixed cylindrical member, and a front end portion axially movably inserted into a space formed between the outer peripheral surface of the core and the fixed cylindrical member and a rear end portion of the fixed cylindrical member. A movable tubular member that projects rearward from the rear end portion, a spring that constantly urges the movable tubular member in the protruding direction, and a fixed tubular member located inside the hollow large-diameter portion at the rear portion when the connector is mounted. A movable meshing piece having a screw thread capable of engaging with a female screw portion formed on the inner peripheral surface of the tubular plug seat, and a hollow large diameter portion for exposing the screw thread of the movable meshing piece to the outside. The formed opening, the swinging elastic means for swingably supporting the movable meshing piece, and the position on the inner diameter side of the movable meshing piece. A first cam formed on the outer peripheral surface of the movable cylindrical member portion to be placed, a second cam formed on the inner peripheral surface of the movable meshing piece and engaged with the first cam, and the movable cylindrical shape A lock member that operates when the member is pushed forward to lock the movable tubular member to the fixed tubular member, and the movable engagement piece is in the inner diameter position when the movable tubular member is in the projecting position. Cannot engage with the female screw, and when the movable tubular member is pushed in, the first and second
The connector, which is easily detachable, is characterized in that it can be protruded in the outer diameter direction and meshed with the female screw by cooperation of the cams.