JPH03163899A - Board inserting/removing device - Google Patents

Abstract

PURPOSE:To eliminate the need of a board fixing member by making the first and second rotating bodies to stay at their positions which are set relatively to each other by utilizing the reaction forces of projections for transmitting turning forces on each other in a state where the insertion of a board into a connector is completed. CONSTITUTION:The second rotating body 13 is rotated in the forward or reverse direction through projections 17a, 17b, 19a-19c for transmitting rotational forces by rotating the first rotating body 12 in the normal or reverse direction by means of a rotating and operating arm 16 in a state where the projections for engagement 17a, 17b, 19a-19c are engaged with a chassis 1. When the second rotating body 13 is rotated, the body 13 makes lever actions which insert or remove a board 3 into or from connectors 10 and 11. In a state where the insertion of the board 3 into the connectors 10 and 11 is completed, the rotating bodies 12 and 13 are made to stay at their position set relatively to each other by utilizing reaction forces of the projections 17a, 17b, 19a-19c for transmitting turning forces on each other. Therefore, unexpected removal of the board 3 from the connectors 10 and 11 due to an impact, etc., does not take place. Thus the need of a board fixing member can be eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a board insertion/extraction device that is most suitable for inserting or extracting a printed wiring board into or out of a multi-connector, for example.

[Summary of the invention]

The present invention provides a board insertion/extraction device for inserting or removing a board removably inserted into a chassis into or from a connector, in which first and second rotating bodies are attached to the board, and the second rotating body While a part of the connector is engaged with the inner seat, the first rotor rotates the second rotor in the forward and reverse directions, and the lever action of the second rotor causes the connector to close. The board is inserted into or removed from the connector, and at that time, the first and second rotating bodies are held in position with respect to each other in a state where the board is completely inserted into the connector. This eliminates the need for a fixing member.

[Conventional technology]

FIG. 3 shows an implementation of the device for inserting and removing a board described in, for example, Japanese Utility Model Application Publication No. 57-110989, in which the board is inserted and removed from the insertion guide 2 of the chassis 1 in the directions of arrows a and a'. A lever 4 is rotatably attached to a printed wiring board (hereinafter simply referred to as the board) 3 by a shaft 5 in the direction of arrow b1b', which is a board that can be inserted.

When inserting the board 3, the lever 4 is rotated in the direction of arrow b with the tip 4a of the lever 4 engaged with the side hole 6 of the chassis 1, and the board 3 is inserted using the leverage of the lever 4. The board 3 is inserted (press-fitted) into a multi-connector (not shown) attached to the back of the chassis 1 by pushing it into the back of the guide 2 in the direction of arrow a.

When removing the board 3, rotate the reher 4 in the direction of the arrow b', pull out the board 3 from the insertion guide 2 in the direction of the arrow a' with the lever action of the reher 4, and remove the board 3 from the multi-connector as shown in the arrow a. It is designed to be pulled out in the ' direction.

[Problem to be solved by the invention]

However, in the past, there was no locking mechanism to hold the chassis 4 rotated in the direction of arrow b in that position. It is easy for the board 3 to be accidentally pulled out from the multi-connector in the direction of arrow a' due to its own weight.

Conventionally, the board fixing member 7 is screwed onto the front surface 1a of the chassis 1 with screws 8, as shown by the dashed line in FIG.
It was necessary to fix the board 3 by pressing b in the direction of arrow a to prevent the board from being unexpectedly removed from the multi-connector in the direction of arrow a'.

However, such a structure requires a large number of parts, and also requires the board fixing member 7 to be attached and detached from the chassis 1 each time the board 2 is inserted or removed, which requires a considerable amount of work. Furthermore, when a plurality of boards 3 are fixed with one board fixing member 7, there is a problem in that it is necessary to adjust the insertion position of the boards 3 with respect to the multi-connector in order to correct for variations in component dimensions. Ta.

An object of the present invention is to provide a board insertion/extraction device that can eliminate the need for a board fixing member.

[Means to solve the problem]

In order to achieve the above object, the board insertion/extraction device of the present invention includes first and second rotating bodies rotatably attached to the board, and the first rotating body is provided with a rotating operation arm. ,
The second rotary body is provided with an engaging protrusion that engages the chassis, the first and second rotary bodies are provided with a plurality of rotational force transmitting protrusions that are mutually engaged, and the engaging protrusion is connected to the chassis. By rotating the first rotary body in the forward or reverse direction with the rotary operation arm while engaged with the chassis, the second rotary body is rotated through the rotational force transmission protrusion.
The second rotary body is driven to rotate in the forward or reverse direction, and the board is inserted into or removed from the connector by the lever action of the second rotary body, and the board is completely inserted into the connector. In this state, the first and second rotary bodies are held in position relative to each other by the reaction force of the rotational force transmitting protrusions.

[Effect]

The board insertion/extraction device configured as described above can hold the first and second rotating bodies in position with respect to each other when the board has been inserted into the connector, so a board fixing member is used as in the conventional case. Even if you do not do so, the board will not be accidentally pulled out of the connector due to impact or the like.

[Embodiment] Hereinafter, an embodiment of a board insertion/extraction apparatus to which the present invention is applied will be described with reference to FIGS. 1A to 2. Note that the same reference numerals are given to the same structural parts as in the conventional example shown in FIG. 3, and redundant explanation will be omitted.

First, FIG. 2 shows the entire board insertion/extraction device. A pair of left and right insertion guides 2, each having a substantially U-shaped cross section, are fixed to the inside of the left and right side walls 1b of a chassis 1, each having a substantially U-shaped planar shape, with screws or the like. . One or more multi-connectors 10, which are connectors, are fixed to the inside of the rear wall 1c of the chassis 1 with screws or the like. Further, a pair of left and right side holes 6 are provided near the front ends of the left and right side walls 1b of the chassis 1. A printed wiring board (hereinafter simply referred to as a board) 3, which is a board, is inserted into and removed from both insertion guides 2 by its left and right edges 3a in the directions of arrows a and a', and the rear edge 3b of the board 3 One or more multi-connectors 11, which are connectors fixed with screws or the like, are configured to be insertable into and removed from the multi-connector 10 in the directions of arrows a and a'. First and second rotary bodies 12 and 13 are mounted near both left and right ends of the front edge 3C of the substrate 3 so as to be rotatable in a left-right symmetrical manner about axes l4 and 15, respectively.

Figures IA to IC show the first and second rotating bodies 12, l3.
The details are shown below. Both of these first and second rotating bodies 12 and 13 are made of high-quality resin.
These first and second rotating bodies 12 and 13 have appropriate elasticity. Note that it is preferable that the hardness of the second rotating body l3 be slightly higher than the hardness of the first rotating body 12. The first rotating body 12 has a rotating operation arm 16 and a shaft l.
Two rotational force transmitting protrusions 17a and 17b arranged at intervals along the outer periphery of the rotor 4 are integrally formed with each other. The second rotating body 13 also has a side hole 6 in the chassis 1.
three rotational force transmission projections 19a arranged at intervals along the outer periphery of the shafts 1 and 5;
19b and 19c are integrally molded with each other. The intervals between the protrusions 17a, 17b and 19a, 19b, 19c are the same as each other, and the protrusions 17a, 1
7b is the two four parts 20 between the protrusions 19a, 19bS19c
A, 2Ob are engaged so as to be sequentially inserted into them.

The side hole 6 is provided approximately at the center of a retaining block 22, which is a molded piece of resin, which is fitted into the hole 21 of the chassis 1.

According to this board insertion/extraction device, when inserting the board 3, the first rotating body 12 is moved from the position indicated by the solid line in FIG. Rotate in direction C (positive direction). At this time, the leading protrusion 17a of the first rotary body 12 is engaged in the recess 20a of the second rotary body 13, and the protrusion 17a is inserted into the protrusion 1.
9a, the second rotating body l3 moves in the direction of arrow d (positive direction)
It is driven to rotate.

Then, during the rotation, the protrusion 18 of the second rotating body 13 enters the side hole 6 of the chassis 1, as shown by the dashed line in FIG.
When the first rotating body 12 is subsequently rotated in the direction of arrow C, the preceding protrusion 17a is disengaged from the recess 20a as shown by the solid line in FIG. 17b is engaged in the next recess 2Ob, and the protrusion 17b pushes the next protrusion 19b.
With the protrusion 18 engaged in the side hole 6, the second rotating body 13 is driven to rotate in the direction of arrow d.

Then, as shown in FIG. 1C, the insertion force of the board 3 is generated at the point of action P1 of the protrusion 18 due to the lever action of the second rotating body 13, and as shown in FIG. After being strongly inserted in the direction a, the board 4 is inserted (pressed) into the multi-connector 10 shown in FIG. 2 from the direction of the arrow a via the multi-connector 11.

Then, while the first rotating body 12 is rotating in the direction of arrow C, insertion of the board 4 into the multi-connector 10 in the direction of arrow a is completed, and the board 4 is stopped at that position.

10 Therefore, as shown by the dashed line in FIG.
b slides upward in the direction of arrow C from inside the recess 20b to above the protrusion 19b against its elasticity, and the arm 16
is brought into contact with the protrusion 19C, and the first rotating body 12 is also stopped.

As a result of the above, when the board 4 is completely inserted into the multi-connector 10 in the direction of the arrow a, the protrusions 17b and 19 of the first and second rotating bodies 12 and 13, as shown in FIG.
b come into contact with each other against their elasticity at a point of action P that crosses the dead center position P2 between the centers of both shafts 14 and 15 in the direction of arrow a.

Then, the mutual reaction force of these protrusions 17b and 19b applies rotational force to the first and second rotating bodies l2 and 13 in the directions of arrows c and d, which are opposite to each other. The two rotating bodies l2 and l3 are held in position relative to each other in the position shown in FIG. 1A. Then, due to this position holding force, the substrate 3
is locked in the above-mentioned insertion completion state, and even if the chassis 1 is subjected to a strong impact in the direction of arrow a' in FIG. Things will disappear.

Next, when removing the board 3, the arm l
6 to move the first rotating body 12 from the position shown in FIG.
Rotate in the direction of arrow C' (reverse direction) to the position shown in Figure B.

Then, the protrusion 17b resists its elasticity and slides down into the recess 20b in the direction of arrow C' as indicated by the solid line from the position indicated by the dashed line in FIG.
By pressing 9C, the second rotating body 13 is driven to rotate in the direction of arrow d' (reverse direction).

Then, as shown in FIG. IC, a pulling force of the substrate 3 is generated at the point of action P4 of the protrusion 18 due to the lever action of the second rotating body l3, and as shown in FIG. The multi-connector 11 of the board 4 is pulled out in the direction of the arrow a12 from the multi-connector 10 shown in FIG. 2 by being pulled out forcefully in the direction a'.

In addition, as shown in FIG. IB, the protrusion 17a of the first rotating body 12 is eventually engaged in the recess 20a of the second rotating body 13, and the protrusion 18 of the second rotating body 12 is engaged with the chassis. It is removed from the side hole 6 of 1 in the direction of arrow d'.

Thereafter, the board 3 can be freely pulled out in the direction of arrow a' from between the insertion guides 2 of the chassis l shown in FIG.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various effective changes can be made based on the technical idea of the present invention.

For example, in the above embodiment, an insertion/extraction device is shown in which the printed wiring board 3 is inserted into or removed from the multi-connector 10, but the present invention is capable of inserting the board, which is a plate-like member for various uses, into various connecting members. The present invention can be applied to a board insertion/extraction device for various purposes for inserting into or extracting from a connector.

13 [Effects of the Invention] Since the present invention is configured as described above, it produces the following effects.

Since the board fixing member that was conventionally necessary can be eliminated, the effort of attaching and detaching the board fixing member can be saved, and the operability of inserting and extracting the board can be significantly improved.

Since the board fixing member can be made unnecessary, costs can be reduced by reducing the number of parts.

Since the mounting space for the board fixing member can be omitted, space can be saved.

There is no need to adjust the insertion position of the board into the connector.

[Brief explanation of the drawing]

FIG. IA to FIG. 2 show an embodiment of the present invention, in which FIG. IA is a plan view of the main part showing a state in which the board has been inserted, and FIG. 1B is a plan view of the main part showing the state in which the board has been removed. Plan, Part I
Figure C is a plan view of 14 essential parts showing the board being inserted in the middle, and Figure 2 is a plan view showing the entire insertion/extraction device. FIG. 3 is a plan view showing the main parts of the conventional example. In addition, in the symbols used in the drawings, 1 -------------------Chassis 3-
----------------Printed wiring board (substrate) 6 -------------One side hole 10.1
1 ----------Multi-connector (connector) 12--11111--1 First rotating body 1
3--------------------Second rotating body 16
-------- One rotation operation arm 1 7a,
1 7b --------Protrusion for transmitting one rotational force 1 8 ---
---------------Engagement protrusions 19a, 19
b, 19c are protrusions for transmitting one rotational force.

Claims (1)

[Scope of Claims] A board insertion/extraction device for inserting/extracting a board removably inserted into a chassis into/from a connector, comprising first and second rotating bodies rotatably attached to the board. a rotary operation arm is provided on the first rotary body, a protrusion for engaging with the chassis is provided on the second rotary body, and a plurality of rotary bodies mutually engaged with the first and second rotary bodies; a rotational force transmitting protrusion is provided, and with the engaging protrusion engaged with the chassis, the first rotary body is rotated in the forward or reverse direction by the rotary operation arm, whereby the The second rotating body is rotationally driven in a forward or reverse direction via a rotational force transmitting protrusion, and the board is inserted into or extracted from the connector by lever action of the second rotating body at that time. and a substrate configured such that, when the substrate is completely inserted into the connector, the first and second rotating bodies are held in position relative to each other by reaction forces of the rotational force transmitting protrusions. insertion/extraction device.