JP2004303581A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector capable of locking and releasing the insertion between a pair of connectors by a simple and convenient means without using dedicated tools and electric circuits. <P>SOLUTION: A dowel 4a1 of one connector can move up to a (B) position in an arrow direction in non-locking condition of (A) within the cam groove 14a1 of the other connector. In this condition, when a member 14a2a having a key hole of a locking portion 14a2 is turned 90° to the right by the key, a stopper 14a2b housed within the locking portion protrudes up to the cam groove 14a1 and leads to the locking condition of (C). In this condition, even if one connector is caused to break away from the other connector, the stopper blocks the movement of the dowel in the arrow direction as shown in (D). When the member having the key hole is turned by 90°, the stopper comes out from the cam groove. Consequently, as shown in (E), since the dowel can move in the arrow direction within the cam groove, one connector can break away from the other connector. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bayonet-type connector or the like that can lock and unlock a fitted state between a first connector and a second connector.
[0002]
[Prior art]
First, a first conventional coaxial connector plug will be described (for example, see Patent Document 1).
[0003]
In the coaxial connector plug, as shown in FIG. 10A, a coaxial connector 71 is connected in a direction orthogonal to a cylindrical main body 61 to which a coaxial cable is connected. A cylindrical fixing member 63 is fixed to a side surface of the cylindrical main body 61, and a cylindrical connection nut 64 is fitted on an outer peripheral surface of the cylindrical fixing member 63. Further, inside the cylindrical fixing member 63, An insulator 65 having a through hole is press-fitted. A spring washer 66 is sandwiched between the cylindrical main body 61 and the cylindrical connection nut 64. The outer peripheral surface of the distal end of the coaxial connector 71 is screwed into the inner peripheral surface of the distal end of the cylindrical connection nut 64. One end of the center contact conductor 62 held by the cylindrical main body 61 is connected to the end of the core wire conductor of the coaxial cable, and the other end of the center contact conductor 62 is held by the insulator 65 inside the cylindrical fixture 63. It is connected to the plug 72 of the coaxial connector 71.
[0004]
Holes 64 a are provided at several places on the outer peripheral surface of the cylindrical connection nut 64. As shown in FIG. 10B, a projection 81b is provided in the recess 81a of the special tool 81 corresponding to the hole 64a.
[0005]
To release the connection between the cylindrical main body 61 and the coaxial connector 71, the projection 81b of the special tool 81 is engaged with the hole 64a of the cylindrical connection nut 64, and the special tool 81 is rotated. Note that the cylindrical connection nut 64 cannot be rotated with a normal spanner.
[0006]
Next, a connector device according to a second conventional technique will be described (for example, see Patent Document 2).
[0007]
The connector device includes an outer cylinder, an inner cylinder that can rotate 180 degrees inside the outer cylinder, and a key that is inserted into and removed from the inner cylinder. By rotating the key, when the inner cylinder is rotated by 180 degrees, the signal line provided on the outer cylinder is connected to the cable provided on the key.
[0008]
[Patent Document 1]
JP-A-2000-323244 (page 4, column 5, line 31 to column 6, line 34, FIGS. 1 and 2)
[0009]
[Patent Document 2]
JP-A-2003-56221 (page 3, column 4, line 37-page 4, column 5, line 43, FIGS. 1 and 2)
[0010]
[Problems to be solved by the invention]
In the first conventional technique, connection and disconnection between a cylindrical main body and a coaxial connector are performed by using a special tool.
[0011]
In the second conventional technique, when a key can be rotated, an electric circuit is connected.
[0012]
The present invention overcomes the disadvantages of both prior arts and locks and locks the mated state of the first and second connectors by simple and convenient means without using dedicated tools or electrical circuits. It is intended to provide a connector capable of canceling the condition.
[0013]
[Means for Solving the Problems]
The present invention employs the following means in order to solve the above problems.
[0014]
1. In a connector having a lock mechanism for locking engagement between a first connector and a second connector, the lock mechanism includes a cam (cam grooves 14a1 and 34a1) provided in the first connector and the second connector. A lock portion (stopper 14a2b, projecting portion 48a) provided on the first connector, an operation portion (key, dial lock 42, 44) provided on the first connector and operating the lock portion; A lock provided on the second connector and moving in the cam portion, wherein the lock portion is capable of being inserted into and retracted from the cam portion, and operating the operation portion. Accordingly, the lock portion moves to lock the fitting between the first connector and the second connector and release the lock.
[0015]
2. The connector according to claim 1, wherein the operation unit has a key and a keyhole, and the lock is operated by inserting the key into the keyhole and rotating the key.
[0016]
3. The connector according to claim 1, wherein the operation unit has at least one dial lock, and operates the lock unit by rotating the dial lock.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Bayonet type connectors according to two embodiments of the present invention will be described.
[0018]
First, a connector according to a first embodiment of the present invention will be described with reference to FIGS.
[0019]
As shown in FIG. 1, the receptacle connector 1 includes a cylindrical insulator 2, one receptacle contact 3 held by the insulator 2, and a shell 4 having a cylindrical portion 4 a covering the insulator 2. Is done. The shell 4 is formed integrally with a cylindrical portion 4a and a rectangular plate supporting portion 4b. A dowel 4a1 is provided on the outer peripheral surface of the cylindrical portion 4a. The support 4b is attached to a wall or the like of various devices.
[0020]
As shown in FIG. 2, the plug connector 11 includes a cylindrical insulator (not shown), one plug contact (not shown) held by the insulator, and a cylindrical portion 14a covering the insulator. And a shell 14 having the same. The shell 14 is formed integrally with a cylindrical portion 14a and a support portion (not shown) of a circular plate. A cam groove 14a1 is provided at one end of the cylindrical portion 14a. A lock portion 14a2 is provided on the outer peripheral surface of the cylindrical portion 14a so as to bridge the cam groove 14a1.
[0021]
When the receptacle connector 1 and the plug connector 11 are fitted together, the dowel 4a1 of the receptacle connector 1 moves in the cam groove 14a1 of the plug connector 11 in the unlocked state shown in FIG. ). In this state, when the member 14a2a having the key hole of the lock portion 14a2 is rotated clockwise by 90 degrees with a key (not shown), the stopper 14a2b housed in the lock portion 14a2 protrudes to the cam groove 14a1, and FIG. The lock state of the fitting shown in ()) is reached. In this state, even if the receptacle connector 1 is detached from the plug connector 11, as shown in FIG. 3D, the dowel 4a1 is prevented from moving in the direction of the arrow by the stopper 14a2b. Therefore, the receptacle connector 1 cannot be detached from the plug connector 11. In the state shown in FIG. 3D, when the member 14a2a having a keyhole is rotated to the left by 90 degrees with a key, the stopper 14a2b retreats from the cam groove 14a1 and is stored in the lock portion 14a2. Therefore, as shown in FIG. 3E, the dowel 4a1 can move in the direction of the arrow in the cam groove 14a1, so that the receptacle connector 1 can be detached from the plug connector 11.
[0022]
FIG. 4 shows an enlarged sectional view of the lock portion 14a2. FIG. 4A shows the unlocked state. In this state, the stopper 14a2b is pulled out of the cam groove 14a1 because it is pulled by the pair of tension coil springs 14a2c. When the member 14a2a having a keyhole is rotated by 90 degrees with a key, the protruding member 14a2a1 provided integrally with the member 14a2a having a keyhole moves the stopper 14a2b as in the locked state shown in FIG. 4B. Push in the direction of the arrow to insert into the cam groove 14a1.
[0023]
Next, a connector according to a second embodiment of the present invention will be described with reference to FIGS. Regarding the second embodiment, the description of the same points as in the first embodiment will be omitted, and only the different points will be described.
[0024]
As shown in FIG. 5, the plug connector 31 includes a cylindrical insulator 32, one plug contact 33 held by the insulator 32, and a shell 34 having a cylindrical portion 34 a covering the insulator 32. Is done. The shell 34 is formed integrally with a cylindrical portion 34a and a circular plate support portion 34b. A cam groove 34a1 is provided at one end of the cylindrical portion 34a. A spring fixing flat portion 34a2 is formed on the outer peripheral surface near both ends of the cylindrical portion 34a. The cable 35 (see FIG. 6) is connected to the support portion 34b.
[0025]
The lock mechanism attached to the plug connector 31 will be described with reference to FIG. The first circular ring 41, the first dial lock 42, the second circular ring 43, the second dial lock 44, the third circular ring 45, and the decorative plate 46 are fitted to the cylindrical portion 34a of the shell 34.
[0026]
As shown in FIG. 9B, the first circular ring 41, the second circular ring 43, the third circular ring 45, and the decorative board 46 are fixed to the support portion 34b of the shell 34 by three pins 47. . The first dial lock 42 and the second dial lock 44 are rotatably fitted to the small diameter portion 41a of the first circular ring 41 and the small diameter portion 43a of the second circular ring 43, respectively.
[0027]
As shown in FIG. 8, the movable lock bar 48 has a protrusion 48a. As shown in FIG. 9C, the movable lock rod 48 is connected to the outer peripheral surface of the cylindrical portion 34a of the shell 34, the first to third circular rings 41, 43, 45, and the first and second dial locks 42. , 44 between the inner peripheral surfaces. The movable lock rod 48 is urged in a direction separating from the outer peripheral surface of the cylindrical portion 34a by a pair of compression coil springs 49 fixed to a pair of spring fixing flat portions 34a2 of the cylindrical portion 34a. I have.
[0028]
In the unlocked state shown in FIGS. 9A and 9C (i.e., the state shown in FIGS. 7A and 7B), the movable lock rod 48 engages the inner periphery of the first dial lock 42. It is located in the surface recess 42a and in the inner peripheral surface recess 44a of the second dial lock 44.
[0029]
When the first dial lock 42 and the second dial lock 44 are rotated by a slight angle, the movable lock rod 48 is pushed by the inner peripheral surfaces of the two dial locks 42 and 44, and the locked state shown in FIG. (Ie, the state shown in FIG. 7C). Therefore, the protrusion 48a of the movable lock rod 48 is inserted into the cam groove 34a1 of the cylindrical portion 34a of the shell 34. As a result, the dowel (see the first embodiment) of the receptacle connector (not shown) is prevented from moving in the cam groove 34a1.
[0030]
To release the locked state and return to the unlocked state, an operation reverse to the above-described operation is performed. That is, each dial number corresponding to the inner peripheral surface concave portions 42a, 44a of the both dial locks 42, 44 is brought by rotating the both dial locks 42, 44 to an angular position facing the movable lock rod 48. As a result, the movable lock rod 48 is moved from the position shown in FIG. 9D to the position shown in FIG. 9C by the pair of compression coil springs 49, so that the protruding portion 48a retreats from the cam groove 34a1.
[0031]
Although the security function improves as the number of dial locks increases, the intended purpose can be achieved with one lock. Further, the inner peripheral surface concave portion 44a of the second dial lock 44 in the present embodiment is provided at a position corresponding to the dial number “1”, but the inner peripheral surface concave portions of other dial locks are other When provided at a location corresponding to the dialed number, it is appropriate for maintaining the secrecy of the operation of releasing the locked state.
[0032]
Furthermore, in both embodiments, the prevention of disconnection of the receptacle connector from the plug connector has been described. However, in both embodiments, it is needless to say that the engagement of the receptacle connector and the plug connector is prevented. You can also.
[0033]
【The invention's effect】
As apparent from the above description, according to the present invention, the following effects can be obtained.
[0034]
1. In the present invention, it is possible to lock and unlock the mated state of the connector by using a simple and convenient means such as a key or a dial lock without using a special tool or an electric circuit required in the conventional technology. it can.
[0035]
2. The structure of the connector is simple and the cost is low.
[0036]
3. It is also useful to prevent unnecessary mating of a pair of connectors.
[Brief description of the drawings]
FIG. 1 is a perspective view of a receptacle connector in a connector according to a first embodiment of the present invention.
FIG. 2 is a perspective view of a plug connector in the connector of the embodiment.
FIGS. 3A to 3E are enlarged perspective views sequentially showing various states of a main part of the connector of the embodiment.
FIGS. 4A and 4B are enlarged cross-sectional views of a lock portion of the plug connector, wherein FIG. 4A shows an unlocked state, and FIG.
FIG. 5 is an exploded perspective view of a plug connector in a connector according to a second embodiment of the present invention.
FIG. 6 is an exploded perspective view of the plug connector and a lock mechanism attached thereto.
7A and 7B are front views of a dial lock mechanism in the plug connector, wherein FIG. 7A is an explanatory view of locking and unlocking by a dial lock, FIG. 7B is an unlocked state, and FIG. Show.
FIG. 8 is a perspective view of a movable lock rod in the plug connector.
9A and 9B are views of the locking mechanism of the plug connector, wherein FIG. 9A is a front view, FIG. 9B is a cross-sectional view taken along line AA in FIG. 9A, and FIG. FIG. 3D is a cross-sectional view of the unlocked state, and FIG. 4D is a cross-sectional view of the locked state along line BB in FIG.
FIG. 10 shows a first prior art coaxial connector plug and its dedicated tool, wherein (A) is a half view of a front view and a sectional view of the plug, and (B) is a front view of the dedicated tool. , Respectively.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Receptacle connector 2 Insulator 3 Receptacle contact 4 Shell 4a Cylindrical part 4a1 Dowel 4b Support part 11 Plug connector 14 Shell 14a Cylindrical part 14a1 Cam groove 14a2 Lock part 14a2a Member having a key hole 14a2a1 Projecting member 14a2b Stopper 14a2c Tension coil spring 31 Plug connector 32 Insulator 33 Plug contact 34 Shell 34a Cylindrical part 34a1 Cam groove 34a2 Spring fixing plane part 34b Support part 35 Cable 41 First circular ring 41a Small diameter part 42 First dial lock 42a Inner peripheral surface concave part 43 Second circular ring 43a Small diameter portion 44 Second dial lock 44a Inner peripheral surface concave portion 45 Third circular ring 46 Decorative plate 47 Pin 48 Movable lock bar 48a Projection portion 49 Compression coil spring

Claims (3)

A connector having a lock mechanism that locks engagement between the first connector and the second connector,
The lock mechanism includes a cam portion provided on the first connector, a lock portion provided on the first connector, and an operation portion provided on the first connector and operating the lock portion. And a dowel provided on the second connector and moving in the cam portion.
The lock portion is capable of being inserted into and retracted from the cam portion. By operating the operation portion, the lock portion moves, and the first connector and the second connector are moved. Wherein the connector can lock and release the lock. 2. The connector according to claim 1, wherein the operation unit has a key and a keyhole, and the lock is operated by inserting the key into the keyhole and rotating the key. 2. The connector according to claim 1, wherein the operation unit has at least one dial lock, and the lock unit is operated by rotating the dial lock.

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