JP2501914Y2 - Plug-in unit insertion / removal tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a plug-in unit insertion / removal tool used when inserting / removing a plug-in type electronic circuit unit into / from an electronic device housing.

[Conventional technology]

A conventional plug-in unit insertion / removal tool of this type is disclosed in, for example, Japanese Utility Model Application No. 60-24005.
This is a structure in which a lever support pin is erected at the lower front corner of the unit board that is configured to be inserted into and removed from the unit mounting housing, and the insertion and removal lever is rotatably attached to this pin. there were. The pin is provided so as to project in a direction orthogonal to the main plate of the unit substrate, and the lever supported by the pin is configured to rotate up and down. Further, the lever is provided with a knob projecting to the front side of the housing, and the rotating end portion located substantially opposite to the knob is provided on the front transverse girder of the housing toward the unit board side. A notch was formed to engage the protruding protrusion. In other words, the conventional insertion / removal lever is rotated by engaging the notch with the protrusion of the housing so that the unit board is inserted into the housing according to the principle of leverage and is moved forward in the insertion direction of the unit board. The provided connector will be connected to the connector in the housing.

[Problems to be solved by the device]

However, in the conventional plug-in unit insertion / removal tool configured in this manner, the notch can be engaged with the protrusion of the housing by rotating the insertion / removal lever before mounting the unit substrate on the housing. At the position, when the unit board is mounted on the housing, the connector of the unit board and the connector of the housing are fitted to each other before the insertion / removal lever contacts the protrusion.
Therefore, when the unit board is strongly pushed into the housing in the state described above and the unit board is thrown into the housing at an accelerated rate, a shock is applied to the connector in the housing, and the connector is damaged. There was something that happened.

[Means for solving the problem]

The plug-in unit insertion / removal tool according to the present invention is a plug-in unit that is inserted into or removed from an electronic device body, and has a knob protruding toward the front side of the electronic device body and a U-shaped cross section that engages with a protrusion of the electronic device body. An insertion / removal lever having a groove-like engagement groove is rotatably provided on a main shaft of the plug-in unit with a rotation shaft orthogonal to the main plate, and the insertion / removal lever has two protrusions parallel to each other. The engaging groove is formed by arranging the engaging ends in parallel with each other, and when the plug-in unit is not mounted, the protrusion on the front side in the insertion direction of the plug-in unit of both the protrusions faces the front surface of the protrusion. It is positioned in position by a spring.

[Action]

When the plug-in unit is attached to the electronic device body,
Before the connector is engaged, the projection of the lever for insertion / removal contacts the projection of the body of the electronic device, so that the impact force applied during mounting is received by the lever for insertion / removal.

〔Example〕

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 (a) to (d) and FIG.

1 (a) to 1 (d) are side views showing a plug-in unit insertion / removal tool according to the present invention, and FIG. 1 (a) shows a state immediately after the unit is inserted into a housing. (B) shows a state where the lever is in contact with the protrusion of the housing, (c) shows a state where the protrusion of the housing faces the engagement groove of the lever, and (d) shows the plug. The state after installation of the in-unit is shown. FIG. 2 is a side view for explaining the operation of the plug-in unit insertion / removal tool according to the present invention. In these drawings, reference numeral 1 denotes a communication device casing as an electronic device main body, and an opening portion for mounting an electronic circuit unit 2 (hereinafter, simply referred to as unit 2) in an upright state is provided in the casing 1. The opening is provided on the front surface of the body 1. In the opening, a pair of upper and lower cross girders are horizontally installed on the opening side and the back side so that a plurality of units 2 can be mounted. A guide 1a for guiding the unit at the time of inserting / removing the unit is provided between the opening side and the inner side cross girder.
3 is a projection with which a unit insertion / removal lever described later is engaged,
The projection 3 is provided on the lower horizontal girder 4 of the opening portion so as to project upward. Reference numeral 5 denotes a housing side connector to which the rear end connector 6 of the unit 2 is fitted and connected, and the housing side connector 5 is attached to the innermost portion of the opening.

Reference numeral 7 denotes an insertion / removal lever as a plug-in unit insertion / removal tool for inserting / removing the unit 2 into / from the housing 1.
This lever 7 is a knob 8 protruding toward the front side of the unit 2.
And a pair of protrusions 9 and 10 that form an engaging groove that engages with the protrusion 3 of the housing 1 and a spring 11 that holds the lever 7 at a predetermined position are integrally provided. It is rotatably provided on the lower part of the front side by a support shaft 12. The support shaft
The unit 12 is erected on the unit 2 along a direction orthogonal to the main plate 2a. That is, the lever 7 rotates with respect to the unit 2 so that the knob 8 moves up and down. The protrusions 9 and 10 are provided at the rotating end of the lever 7 opposite to the knob 8, and the distance between the protrusions 9 and 10 is set so that the protrusion 3 can be engaged between them. . Further, the length dimension of these protrusions is such that when the lever 7 rotates and is directed downward (when it is substantially parallel to the protrusion 3), the first end thereof is
It is set so as to be positioned below the upper end of the protrusion 3 by a dimension indicated by L in FIG. That is, by arranging the two protrusions 9 and 10 side by side in this way, an engaging groove having a U-shaped cross section is formed in the lever 7.

The spring 11 is provided to prevent the lever 7 from turning counterclockwise in the figure from the state in which the above-mentioned protrusions 9 and 10 are directed downward, and the tip thereof is the main plate of the unit 2. It is in contact with a pin 13 projecting from 2a.

Next, a procedure for inserting / removing the unit 2 into / from the housing 1 by using the insertion / removal lever 7 configured as described above will be described. First, as shown in FIG. 1A, the unit 2 is inserted into the opening of the housing 1. (Note that the arrow A indicates the insertion direction of the unit 2.) At this time, the lever 7 is connected to the spring 11
Since the abutment is on the pin 13, the protrusions 9 and 10 are kept in a state of being directed substantially downward. When the unit 2 is further inserted in the direction of the arrow A in this state, the first
As shown in FIG. 2B, the protrusion 10 on the front side in the insertion direction of the lever 7 contacts the front edge of the protrusion 3 of the housing 1. That is, the force for pushing the unit 2 is received by the protrusion 3. In this state, the rear end connector 6 of the unit 2 is not fitted to the housing side connector 5 of the housing 1. To insert the unit 2 to the deepest part in the housing 1, as shown in FIG. 1 (c), the knob 8 is lowered to move the lever 7 counterclockwise in the figure, in other words, slightly in the direction of arrow B. Then, the unit 2 is pushed in the direction A so that the protrusion 3 faces the engaging groove of the lever 7. At this time, the spring 11, which is in contact with the pin 13 and is prevented from rotating, bends, and elastic force is applied to the lever bar 7 in the direction indicated by arrow C in the figure. In this state, the knob 8 is pushed up, and the lever 7 is rotated clockwise in the drawing so that the engaging groove engages with the projection 3 as shown in FIG. 7
The unit 2 is pushed by and the rear end connector 6 of the unit 2 is fitted into the housing side connector 5. In this way, the unit 2 can be attached to the housing 1. To remove the unit 2, the procedure reverse to the above-mentioned procedure is performed. That is, as shown by the broken line in FIG.
Rotate counterclockwise to perform.

In the plug-in unit insertion / removal tool according to the present invention configured as described above, when the unit 2 is mounted on the housing 1, the lever before the rear end connector 6 of the unit 2 is fitted into the housing-side connector 5 Since 7 contacts the projection 3 of the housing 1,
The lever 7 receives the impact force applied when the unit is attached.

[Effect of device]

INDUSTRIAL APPLICABILITY As described above, the plug-in unit inserter / retractor according to the present invention has a structure in which the plug-in unit that is inserted into and removed from the electronic device body has the knob protruding toward the front side of the electronic device body and the protrusion of the electronic device body. An insertion / removal lever having a mating U-shaped cross-section engagement groove is rotatably provided on a rotation shaft orthogonal to the main plate of the plug-in unit. The engaging groove is formed by arranging the protrusions side by side at the turning end of the lever body, and when the plug-in unit is not mounted, the protrusion on the front side of the plug-in unit in the plug-in unit insertion direction is the protrusion. Since the spring is positioned at the position facing the front surface of the electronic device, when the plug-in unit is attached to the electronic device main body, the protrusion of the insertion / removal lever is attached to the protrusion of the electronic device main body before the connector is engaged. Since contact, the impact force applied during mounting will be the insertion and extraction lever is subjected. Therefore, even if the plug-in unit is pushed into the main body of the electronic device at an accelerated rate, the connector will not be damaged. Also, when the connector is fitted, normal fitting is not performed unless the repulsive force of the spring is intentionally operated to operate the unit inserting / removing tool, so that the connector can be reliably protected.

[Brief description of drawings]

1 (a) to 1 (d) are side views showing a plug-in unit insertion / removal tool according to the present invention, and FIG. 1 (a) shows a state immediately after the unit is inserted into a housing. (B) shows a state where the lever is in contact with the protrusion of the housing, (c) shows a state where the protrusion of the housing faces the engagement groove of the lever, and (d) shows the plug. The state after installation of the in-unit is shown. FIG. 2 is a side view for explaining the operation of the plug-in unit insertion / removal tool according to the present invention. 1 ... communication device housing, 2 ... unit, 3 ... projection, 5
...... Housing connector, 6 ...... rear end connector, 7 ...... lever, 8 ...... knob, 9, 10 ...... protrusion, 11 ...... spring.

Claims (1)

(57) [Scope of utility model registration request] 1. A plug-in unit that is inserted into and removed from an electronic device body has a knob protruding toward the front side of the electronic device body, and an engaging groove having a U-shaped cross section that engages with a protrusion of the electronic device body. The insertion / removal lever is rotatably provided with a rotation shaft orthogonal to the main plate of the plug-in unit. The insertion / removal lever has two parallel protrusions arranged side by side at the rotation end of the lever body. By doing so, the engagement groove is formed, and in the state where the plug-in unit is not mounted, the protrusion on the front side in the insertion direction of the plug-in unit is positioned by the spring at the position facing the front surface of the protrusion. An insertion / removal tool for a plug-in unit, which is characterized in that