JPH0651160A - Locking structure for coaxial connector - Google Patents

Abstract

PURPOSE:To embody locking structure for a coaxial connector where the slip-out check state of the inserted and connected coaxial connector is safely and surely held. CONSTITUTION:This coaxial connector 87 is provided with a large-diameter part 92 on a tip side, a small-diameter part 94 continuing to the large-diameter part 92, and a snap out ring 96 to be attached to the small-diameter part 94 so as to freely move in an axial direction; a snap ring 90 provided in the hole of an opposite member 83 to which the connector 87 should be inserted and connected is engaged with a side wall part 93 between the large-diameter part 92 and the small-diameter part 94, so that the slip-out of the connector 87 is prevented; and the diameter of the ring 90 is enlarged by the ring 96 moving to the tip side, whereby the slip-out can not be prevented in the connector 87, which is provided with a locking member 2 capable of releasably preventing the movement of the ring 96 so that the ring 96 is not moved to the tip side after inserting and connecting the connector 87.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock structure capable of securely locking a coaxial connector used for electrical connection or optical connection.

[0002]

2. Description of the Related Art For example, as shown in a part of FIG. 6A, a coaxial connector receiving housing 83 arranged on a backboard 81 of an electronic device (not shown) is formed at the tip of a coaxial cable 85. A plurality of (one in the figure) through holes 89 that can receive (insert) the coaxial connectors 87 that have been formed are provided, and a ring-shaped snap ring 90 for preventing the coaxial connectors from coming off is provided at a predetermined position inside the through holes 89. Is installed.

When the coaxial connector shown in FIG. 2B is inserted and inserted, the snap ring 90 in the housing 83 (through hole 89) enters the small diameter portion 94 following the large diameter portion 92 on the tip side of the coaxial connector, and the coaxial connector is coaxial. With respect to the coaxial connector 87 that is about to move in the connector withdrawal direction, the ring-shaped side wall portion 93 between the large-diameter portion 92 and the small-diameter portion 94 is brought into contact with and engaged with, and provided at the tip of a fishing hook or spear. This prevents the coaxial connector 87 (coaxial cable 85) from coming off, as in “burr”.

On the other hand, when pulling out such a coaxial connector 87 (coaxial cable 85), it is slidable in the small diameter portion 94 of the coaxial connector 87 in the axial direction (connector connecting direction), as shown in FIG. The flange portion 97 of the snap-out ring 96 attached to is pressed in the insertion direction and slidably moved to the tip side of the coaxial connector,
0 is spread from the inside to have an inner diameter slightly larger than the large diameter portion 92 of the coaxial connector. As a result, the worker can smoothly pull out the coaxial connector in the pulling-out direction ((d) of the same figure).

[0005]

However, in the above-described coaxial connector retaining structure, there is a risk that the snap-out ring 96 is erroneously pushed into the retaining release released state or a state equivalent thereto even though there is no such intention. There is a nature. Alternatively, it suffices if the snap-out ring 96 is at a predetermined position away from the housing 83 after the coaxial connector 87 is inserted into the housing 83.
If the snap-out ring 96 comes into contact with or close to the housing 83 and pushes the snap ring 90 apart, even if the insertion of the coaxial connector 87 is good, no retaining state remains. Therefore, when it is exposed to vibration or external force is applied,
The coaxial connector 87 can easily be disconnected, causing serious adverse effects on the electronic equipment involved.

[0006] Therefore, it is an object of the present invention to provide a lock structure for a coaxial connector, which can securely and securely hold the detached state of the inserted / connected coaxial connector.

[0007]

In order to solve the above problems, a lock structure for a coaxial connector according to the present invention has a large-diameter portion on the distal end side, a small-diameter portion that follows the large-diameter portion, and is movable in the axial direction. A coaxial connector having a snap-out ring mounted on the small diameter portion, wherein the snap ring provided in the hole of the mating member into which the coaxial connector is to be inserted and connected is provided with the large diameter portion and the small diameter portion. A coaxial connector that engages with a side wall portion between and to prevent the coaxial connector from being pulled out, and the snap-out ring that moves toward the tip side expands the diameter of the snap ring so that the removal cannot be prevented. In order to prevent the snap-out ring from moving to the tip side after the coaxial connector is inserted and connected, a movement blocking means capable of releasably blocking the movement of the snap-out ring is provided. The features of the configuration.

[0008]

The movement preventing means prevents movement of the snap-out ring, so that the snap ring in the housing is not expanded in diameter and continues to be engaged with the coaxial connector, so that the coaxial connector cannot be disengaged.

[0009]

Embodiments of the present invention will now be described with reference to the drawings. Since the coaxial cable and the coaxial connector themselves can be used for various applications such as optical connection and high current connection, For the sake of convenience, the illustration and description of the specific structural content of itself are omitted.

First, the first embodiment of the lock structure for a coaxial connector according to the present invention shown in FIGS. 1 and 2 will be described. In the coaxial cable 85, for example, a ring portion on the root side of the lock member 2 made of plastic is formed. 3 is attached (attached), and a C-shaped bush portion 5 extends from the ring portion 3 of the lock member 2 through an elongated flexible connecting portion 4. Lock member 2
As shown in FIG. 1, the bush portion 5 of the housing 83
Coaxial connector 87 inserted into the upper surface and housing 83
When it is elastically mounted between the flange portion 97 of the snap-out ring 96 of
Cannot move in the connector insertion direction because it is an obstacle. That is, as it is, the snap ring 90 (not shown) in the housing 83 cannot be semi-permanently expanded in diameter, so that the coaxial connector 87 is inserted and connected to the housing 83 (as long as its main part is not damaged). Will continue to be.

To release such a connected state from practical use,
It suffices to simply remove the bush 5 of the lock member 2 to the side, which allows the flange 97 of the snap-out ring 96 to move in the connector insertion direction.
The diameter of the snap ring 90 (not shown) can be expanded to pull the coaxial connector 87 outward. The bushing 5 of the lock member 2 is not limited to the method of attaching (covering) only after the connector is attached, but may be attached to the snap-out ring 96 before the connector is attached. By doing so, a complete locked state is automatically obtained at the same time when the coaxial connector 87 is inserted into the housing 83, and therefore, the bush portion 5
It is safe because you can avoid the situation of forgetting to put on.

Next, to explain the second embodiment, referring to FIGS. 3 to 5, one side surface of the housing 83 is formed with a surface 83a which is partially lowered. A plate-shaped lock member 12 is attached. The locking member 12 is provided at an angular position (see FIGS. 3 and 4) that horizontally protrudes to the outside of the housing, and the housing 83
It is supported by the pin member 13 with respect to the housing 83 so as to rotate approximately 90 degrees with respect to an angular position (FIG. 5) that is housed on the side surface of the housing that does not protrude from the housing.

When the locking member 12 is projected horizontally to the outside of the housing as shown in FIGS. 3 and 4, the flange portion 97 of the snap-out ring 96 of the coaxial connector 87 inserted into the housing 83 is , It interferes and cannot move in the connector insertion direction. That is, as it is, the snap ring 90 (not shown) in the housing 83 cannot expand its diameter, so that the coaxial connector 87 continues to be inserted and connected to the housing 83 (as long as its main part is not damaged). Become.

To release such a connected state from practical use,
As shown in FIG. 5, the locking member 12 may be rotated so as not to project to the outside of the housing, which allows the flange portion 97 of the snap-out ring 96 to move in the connector insertion direction. The diameter of the snap ring 90 (not shown) can be expanded to pull the coaxial connector 87 outward.

It should be noted that the lock member 12 may be constructed such that the lock member 12 can hold its angular position by itself, for example, the lock member 12 and the housing 83 are frictionally engaged with each other, or an alternative is possible. Alternatively, the self-holding may be performed at the projecting angle position and the storage angle position. Alternatively, the lock member 12 may be configured to be freely rotatable, and for example, may be configured to be naturally positioned at the protruding angle position when no external force is applied,
By doing so, a complete locked state is automatically obtained at the same time when the coaxial connector 87 is inserted into the housing 83, and therefore, it is possible to prevent a situation in which the locking member 12 is forgotten to be in the protruding angular position, which is safe. Is.

[0016]

As described above, according to the present invention, the state in which the inserted coaxial connector is prevented from coming off can be held safely and reliably, and the inconvenience or the like of the related art can be eliminated.

[Brief description of drawings]

FIG. 1 is a side view of a first embodiment of a lock structure for a coaxial connector according to the present invention.

FIG. 2 is a front view of a lock member.

FIG. 3 is a side view of the second embodiment.

4 is a view as seen from the direction of the arrow along the line IV-IV in FIG.

FIG. 5 is a diagram showing an unlocked state.

FIG. 6 is a diagram illustrating a typical coaxial connector insertion step.

[Explanation of symbols]

 2 ... Lock member 12 ... Lock member 83 ... Housing 87 ... Coaxial connector 90 ... Snap ring 92 ... Large diameter part 93 ... Side wall part 94 ... Small diameter part 96 ... Snap out ring

Claims (1)

[Claims] 1. A large-diameter portion (92) on the tip side, a small-diameter portion (94) following the large-diameter portion (92), and a snap mounted on the small-diameter portion (94) so as to be movable in the axial direction. A coaxial connector (87) having an out ring (96), the snap ring (90) provided in a hole of a mating member (83) into which the coaxial connector (87) is to be inserted and connected.
Engages with the side wall portion (93) between the large diameter portion (92) and the small diameter portion (94) to prevent the coaxial connector (87) from being pulled out, and moves toward the tip side. In the coaxial connector (87) in which the snap ring (90) is expanded in diameter by the out ring (96) and the removal thereof cannot be prevented, the coaxial connector (87) can be inserted and attached.
After the connection, the coaxial block is provided with movement blocking means (2, 12) capable of releasably blocking the movement of the snap-out ring (96) so that the snap-out ring (96) does not move to the tip side. Connector locking structure.