JPH0936576A - Printed board dismounting jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printed board dismounting jig which is capable of easily dismounting a printed board without pinching an elastic piece or including a specific component part such as a tongue-like piece. SOLUTION: A printed board dismounting jig used for dismounting a pair of fixed printed boards 3 where the one end of a support 2 is inserted is equipped with a shaft 11 which is equipped with an opening 10 to close an elastic piece 2A1 and where the one end of a support 2 is inserted and a hook which is mounted on the shaft 11 in a freely pivotable manner and engaged with the edge of the printed board 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed board removing jig for mounting electronic circuit parts and removing a printed board on which printed wiring is formed from a support.

[0002]

2. Description of the Related Art In general, when fixing a printed board, one end of a columnar member of a support is inserted into an insertion hole of the printed board, and this elastic piece that passes over one elastic piece is opened, and the pair of opened legs is opened. The printed board is held and fixed between the elastic pieces.

Conventionally, in order to remove a printed board fixed to a support with an elastic piece, the opened elastic piece is sandwiched with fingers, pliers or the like and closed, and the printed board is held with the other hand. There was a way to pull it out from one end.

Recently, as described in, for example, Japanese Utility Model Laid-Open No. 3-22879 and Japanese Utility Model Laid-Open No. 3-22800, a printed board removing jig or an elastic piece having a tongue-shaped piece for pressing down the printed board is used. It uses a shaft that has an opening with an inner diameter that closes the leg.

[0005]

By the way, in the method of sandwiching the opened elastic piece with fingers when removing the printed board, since the elastic piece is only a few millimeters, considerable labor is required and the pliers are used. In the method of sandwiching the elastic pieces with each other, there is a risk that the elastic pieces may be broken due to excessive force. In addition, the removal jig having the tongue that holds down the printed board is expensive to manufacture because it has a special shape, and the side of the printed board needs to be pressed to hold down the printed board with the tongue. However, there is a problem in that it cannot be used if this space is not available. Further, in the case of using the shaft body, the legs can be closed relatively easily, but when the printed board is subsequently removed from the columnar member of the support body, the printed board is pulled out in the opposite direction while pushing the shaft body. It was necessary and difficult to operate.

An object of the present invention is to provide a printed board removing jig which can easily remove a printed board from a support without sandwiching an elastic piece or requiring a special structure such as a tongue piece. To do.

[0007]

To achieve this object, the present invention is directed to a support having a columnar member and a pair of elastic pieces attached to the columnar member at a distance, and the elastic body having both legs opened. In a jig for removing a printed board held in a state of being sandwiched between pieces, a shaft body in which an end portion of the columnar member is inserted and an opening hole for closing one elastic piece is formed, One end side is rotatably attached to the shaft body, and the free end is provided with a hook that engages with the edge of the printed board.

[0008]

Since the present invention is configured as described above, when the printed board fixed to the support is removed, the opening of the shaft is opposed to one end of the columnar member of the support, and in this state Is pushed toward the printed board. As a result, the one end is inserted into the opening and the elastic piece provided at the one end is closed. Next, the hook is rotated to engage with the edge of the printed board, and then the hook is moved in the jig direction to pull out the printed board from one end of the columnar member of the support and remove it. In this way, since the leg of the elastic piece can be closed by a simple method of inserting one end of the support into the opening, it is possible to clamp the elastic piece or to provide a special structure such as a tongue piece. In addition, since it is possible to maintain the closed leg state without engaging the hook by engaging the hook after closing the leg, there is no need to press the shaft body toward the printed board to maintain the closed leg state. The operability is improved by simply pulling the shaft.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the printed board removing jig of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view showing an embodiment of a printed board removing jig of the present invention, FIG. 2 is a front view, and FIGS. 3 to 5 are explanatory views showing a procedure for removing the printed board from a support. is there.

As shown in FIGS. 3 to 5, generally, a panel 1 of a control panel includes a columnar member 2C and two or more pairs of elastic pieces 2A.
A support body 2 made of 2B is attached, and an electronic component (not shown) is mounted via the support body 2 and a printed board 3 on which printed wiring is formed is attached. An insertion hole 3 formed in the printed board 3 is provided at one end of the support body 2.
The first elastic piece 2A ₁ that is inserted into the opening a and opens, and the elastic piece 2A ₂ that functions as a first elastic piece stopper that contacts the back surface of the printed board 3 are provided, and the support 2
A second elastic piece 2B ₁ inserted into an insertion hole 1a formed in the panel 1 to open the leg and an elastic piece serving as a second elastic piece stopper that abuts on the surface of the panel 1 at the other end of the And are provided.

As shown in FIGS. 1 and 2, the printed board removing jig of this embodiment has one end of the support member 2 inserted therein, and the length dimension of the first elastic piece 2A ₁ is For example, it is about the same as 7 mm, and the first elastic piece 2A is formed in the opening 10.
It is adapted to receive most of the _1. Hole 10
Chamfering is applied to the entrance and exit to smooth the closed leg of the elastic piece 2A ₁ .

Further, when the elastic piece 2A ₁ is positioned in the opening 10 of the shaft body 11 and the hook 12 is closed,
It is configured to engage exactly with the edge of the printed board 3.

In this embodiment, when the printed board 3 fixed to the support 2 is removed, as shown in FIG. 3, the opening 10 of the shaft 11 is inserted into the first elastic piece 2A of the support 2. _1, and then the shaft 11 is pressed toward the printed board 3 as shown in FIG. As a result, the support 2
First elastic pieces 2A ₁ is first pressed by the inner wall of one end is guided by the chamfered portion will be inserted into the aperture 10, aperture 10 Accordingly aperture 10 of the elastic piece 2A of ₁ Is closed, and is slightly smaller than or equal to the insertion hole 3a of the printed board 3.

Next, the hook 12 is rotated to engage the tip of the hook 12 with the edge of the printed board 3. In this state, the elastic piece 2A ₁ does not come out of the opening 10 without pressing the shaft body. The printed board 3 moves to the right (in FIGS. 3 to 5) together with the removal jig and comes off the support 2.

According to the embodiment constructed as described above, the first elastic piece is pushed by a simple operation in which the opening 10 is pushed into the elastic piece of the support body 2 so as to face it and the hook 13 is engaged with the printed board 3. Since it is possible to remove the print leg 3 from the closed leg 2A ₁ , the printed board 3 can be easily supported on the printed board 3 without the need to hold the first elastic piece 2a or a special configuration such as a tongue piece. It can be removed from 2.

[0017]

As described above, according to the present invention, the printed board is supported by the support without the need to clamp the elastic piece provided at one end of the support with fingers or pliers as in the conventional case. The elastic piece can be prevented from being broken, while improving workability.

Further, since the printed board can be detached from the support without requiring a special structure such as a tongue, the manufacturing cost can be reduced.

Further, when removing the printed board, no troublesome operation such as pulling out while applying pressing force is required, and even an inexperienced person can accurately remove the printed board.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a printed board removing jig of the present invention.

FIG. 2 is a front view of the removal jig of FIG.

FIG. 3 is a side view showing a procedure of a removal procedure using a removal jig and showing a removal start state.

FIG. 4 is a side view of a procedure of a removing procedure using a removing jig, which is a state in which a closed leg of the elastic piece is completed.

FIG. 5 is an explanation of the procedure of the removal procedure using the removal shaft,
It is a side view in the state where the printed board was removed.

[Explanation of symbols]

 2 Support 2A First elastic piece 3 Printed board 3a Insertion hole 10 Opening hole 11 Shaft body 12 Hook 13 Ring

Claims (2)

[Claims] 1. A printed board held by a support body having a columnar member and a pair of elastic pieces attached to the columnar member at a distance, sandwiched between the elastic pieces opened. In the jig for detaching, the shaft member in which the end of the columnar member is inserted and the opening for closing one elastic piece is formed, and one end side is rotatably attached to the shaft member, and the free end is A printed board removing jig comprising a hook that engages with an edge of the printed board. 2. The printed board removing jig according to claim 1, further comprising a ring attached to the shaft body for inserting a finger when the printed board is removed.