JP2000215945A - Connector plug structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a connector pin from bending during engagement, by placing a sleeve in a cavity in a plug, which has a hole into which the connector pin is inserted and is movable in the cavity by inserting the pin into this hole. SOLUTION: In a cavity 3 in a connector plug 1, a sleeve 6 is placed which has a hole 5 into which the connector pin 4 is inserted and is movable in the cavity 3 after the insertion. The sleeve 6 is energized outward by a spring 7 provided in the cavity 3. Thus, because the connector pin 4 is held by the sleeve 6 in the cavity 3 of the connector plug 1, the connector pin 4 can be prevented from bending during engagement. In addition, because the sleeve 6 is returned to a proximity of the opening edge of the cavity 3 by the spring 7 when the engagement is released, the connector pin 4 can be prevented from bending even during next engagement.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector plug structure in which a connector pin of a connector plug is held by a sleeve.

[0002]

2. Description of the Related Art Conventionally, a connector pin of a connector plug is provided so as to protrude into a hollow portion of the connector plug. Therefore, there is a problem that the connector pin may be bent when fitted.

Further, Japanese Patent Application Laid-Open No. 4-34732 discloses a protective cover for a connector. As shown in FIGS. 4, 5 (a) and 5 (b), this is a protective cover for protecting the plug-in type connector.
A rotatable cover member 123 attached to be openable and closable to protect one connector 115a, and a connector 11 on the side to which the other connector 115b is attached.
The insertion member 117 provided in the insertion direction of 5b and the cover member 123 are provided on the cover member 123, and the cover member 123 is changed from the closed state to the closed state by the contact of the insertion member 117 by the insertion operation of the other connector 115b. Engaging part 1
30. However, this is used as a cover and has nothing to do with the bending of the pin.

Japanese Patent Application Laid-Open No. 1-143171 discloses a plug for plug connection and a protective cap for coupling. As shown in FIGS. 6, 7, 8 and 9, this is a protective cap that can be used for each of the plug and the coupling for plug connection. The protective cap is a protective member 217 for the plugs 203 and 204. 218
And a protection member 216 for the coupling 205. However, this does not provide any means for preventing the plug pin 208 from bending.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a connector plug structure which can solve the above-mentioned conventional problems and can prevent the connector pins of the connector plug from being bent when fitted. And

[0006]

In order to achieve the above object, according to the first aspect of the present invention, a hole for inserting a connector pin is provided in a cavity of a connector plug, and the hole is formed in the connector pin. It is characterized in that a sleeve which is inserted and is movable in the cavity is provided. The invention described in claim 2 is characterized in that the sleeve is urged outward by a spring disposed in a hollow portion of the connector plug.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a connector plug structure according to the present invention will be described below with reference to the drawings. 1A and 1B show a connector plug structure according to a first embodiment of the present invention, wherein FIG. 1A is a sectional view thereof, and FIG. 1B is an exploded perspective view thereof.

[0008] The connector plug structure of the first embodiment is as follows.
As shown in FIGS. 1 (a) and 1 (b), a hole 5 for inserting into a connector pin 4 protruding from the center of the hollow portion 3 of the cylindrical portion 2 of the connector plug 1 is provided. The hole 5 is inserted into a connector pin, and a disk-shaped sleeve 6 which is movable in the cavity 3 is provided.
Further, the sleeve 6 is urged outward by a spring 7 disposed in the cavity 3 of the connector plug 1.

According to the connector plug structure of the first embodiment, since the connector pin 4 is held in the cavity 3 of the connector plug 1 by the sleeve 6, the connector pin 4 is bent when fitted. Can be prevented. Further, since the sleeve 6 is urged outward by the spring 7, when the fitting is released, the spring 6 returns the sleeve 6 to a position near the opening edge of the hollow portion 3 of the connector plug 1. Also, it is possible to prevent the connector pin 4 from being bent even at the time of the next fitting.

FIG. 2 is an exploded perspective view of a connector plug structure according to a second embodiment. As shown in FIG. 2, the connector plug structure of the second embodiment has a plurality of connector pins 14 for inserting into a plurality of connector pins 14 protrudingly provided in the hollow portion 13 of the rectangular tube-shaped portion 12 of the connector plug 10. Hole 1
5 and insert this hole 15 into the connector pin 14,
Flat-plate-shaped sleeve 1 movable within cavity 13
6 are arranged. The sleeve 16 may be provided with a spring (not shown) in the hollow portion 13 of the connector plug 10 to urge the sleeve 16 outward. This second
The operation and effect of the connector plug structure of the embodiment are almost the same as those of the connector plug structure of the above-described first embodiment, and a description thereof will be omitted.

FIG. 3 is an exploded perspective view showing a connector plug structure according to a third embodiment. As shown in FIG. 3, the connector plug structure of the third embodiment has a connector plug 2
In the hollow portion 23 of the rectangular tube-shaped portion 22, there is provided a long hole 25 for insertion into a flat connector pin 24 protrudingly provided. A flat-plate-shaped sleeve 26 movable in the portion 23 is provided. In addition, this sleeve 26
A spring (not shown) may be provided in the hollow portion 23 of the connector plug 20 to urge the connector plug 20 outward. The operation and effect of the connector plug structure of the third embodiment are almost the same as those of the above-described first and second embodiments.
The description is omitted.

[0012]

As described above, according to the first aspect of the present invention, a hole for inserting a connector pin is provided in the cavity of the connector plug, and the hole is inserted into the connector pin. Since the sleeve is movable within the cavity, the sleeve can prevent the connector pin of the connector plug from being bent when fitted.

According to the second aspect of the present invention, since the sleeve is urged outward by the spring disposed in the cavity of the connector plug, the sleeve causes the sleeve to be hollowed by the spring. The connector pin can be prevented from bending even when it is next fitted.

[Brief description of the drawings]

1A and 1B show a connector plug structure according to a first embodiment of the present invention, in which FIG. 1A is a cross-sectional view and FIG. 1B is an exploded perspective view.

FIG. 2 is an exploded perspective view of a connector plug structure according to a second embodiment.

FIG. 3 is an exploded perspective view of a connector plug structure according to a third embodiment.

FIG. 4 is a side view showing a conventional connector protective cover.

FIG. 5A is a perspective view showing an open state of the protective cover,
(B) is a perspective view which shows the protection cover in the open state.

FIG. 6 is an exploded perspective view of a conventional plug connection portion of two optical waveguides each including two plugs and one intermediate coupling.

FIG. 7 is a partial sectional side view of the first plug shown in FIG. 6;

8 is a longitudinal sectional view of the intermediate coupling shown in FIG.

9 is a longitudinal sectional view of a protective cap for a plug connection element shown in FIG.

[Explanation of symbols]

 1 Connector Plug 3 Cavity 4 Connector Pin 5 Hole 6 Sleeve 7 Spring 10 Connector Plug 13 Cavity 14 Connector Pin 15 Hole 16 Sleeve 20 Connector Plug 23 Cavity 24 Flat Connector Pin 25 Long Hole 26 Sleeve

Claims (2)

[Claims] 1. A connector having a hole for inserting a connector pin in a cavity of a connector plug, the hole being inserted into the connector pin, and a sleeve movable in the cavity. Connector plug structure characterized by: 2. The connector plug structure according to claim 1, wherein the sleeve is urged outward by a spring disposed in a cavity of the connector plug.