JPH09172274A - Substrate fixing tool and method for fixing substrate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for fixing a substrate and a substrate fixing tool, which can enhance the workability at the time when the substrate is detached or attached from or to an equipment main body. SOLUTION: A substrate fixing tool is constituted of one pair of fixing members 3 and one pair of clamping members 4, which are respectively mounted at prescribed positions on an equipment body 1 to be mounted with a substrate 2. Each fixing member 3 has an engaging piece 31 which is extendedly provided into roughly an L shape, and each clamping member 4 has a press pawl 41 and an engaging projection 42. Insertion holes 22 formed in one part of the substrate 2 are fallen to the side of the body 1 in a state that they are respectively made to pass through the pieces 31 and the other end part of the substrate 2 is engaged with the body 1 by the projections 42 and pawls 41 of the members 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board fixture and a board fixing method for fixing a board such as a printed board in electronic equipment.

[0002]

2. Description of the Related Art In an electronic device such as a facsimile machine, it is necessary to fix a substrate such as a printed circuit board on which various electronic devices are mounted to a device body such as a casing. An example of the conventional technique for fixing the substrate in this way is shown in FIG.

This substrate fixing method is used for a pair of guide holes 11
1, a substrate 11 on which the substrate 1 is formed, and a pair of substantially conical guides 12 and a pair of substrate pressing portions 13 which are provided on the side of the device body to which the substrate 11 is attached. The pair of guides 12 are fixed on the device body 10 at a distance corresponding to the distance between the pair of guide holes 111 of the substrate 11. A guide groove 131 for guiding one end of the substrate 11 and a pressing claw 132 for pressing one end of the substrate 11 from above are formed in the pair of substrate pressing portions 13.

The substrate 11 in this conventional substrate fixing system
The fixing procedure of is as follows. First, one end of the substrate 11 is inserted obliquely above the guide groove 131 of the substrate pressing portion 13. Then, the guide hole 111 of the substrate 11 is inserted into the device body 1 at a place where the substrate 11 is inserted to a predetermined depth of the guide groove 131.
0 and the guide hole 111 is fitted into the upper part of the guide 12 on the device body 10 side, and the device body 10
The screw holes 112 of the substrate 11 are aligned with the bosses 23, and both are fixed with screws or the like.

In the structure using the conventional substrate fixing method configured as above, the upper surface of the substrate 11 and the substrate pressing portion 13 are
Since one surface of the substrate pressing claw 132 is closely attached to form a gap, the substrate 11 is not detached from the device body 10 due to vibration or the like.

[0006]

However, in the case of the above-mentioned conventional board fixing method, in order to securely fix the board, it is finally necessary to screw the board to the main body of the apparatus with a tool such as a screwdriver. is there. For this reason, it is necessary to perform work using a tool when the substrate is attached to or detached from the device body, or when the substrate is detached from the device body, and the work is complicated.

An object of the present invention is to provide a board fixing tool and a board fixing method capable of improving workability when the board is attached to and detached from the apparatus body.

[0008]

The substrate fixture of the present invention comprises:
In the board fixture for fixing the board to the device body,
It is composed of a fixing member attached to the device body and a clamp member, and the fixing member has an engaging piece extending in a substantially L shape, and the clamp member is provided on the side opposite to the extending direction. The board is separated from the engaging piece by a predetermined length, the board has an insertion hole for the engaging piece at one end, and the other end is locked to the clamp member. Is characterized in that. A pair of the above-mentioned insertion holes is preferably provided at one end of the substrate, and a pair of the above-mentioned engagement pieces are provided correspondingly.

In the board fixture of the present invention constructed as described above, first, the substantially L-shaped engaging piece of the fixing member is inserted through the insertion hole at one end of the board to be engaged. Next, while keeping this engagement state, the other end of the substrate is rotated toward the clamp member toward the clamp member and tilted down, and the other end is locked by the clamp member. Thus, the substrate can be fixed with one touch between the engaging piece of the fixing member and the clamp member without the work of fixing the tool such as screwing. Further, at the time of removal, the other end of the substrate is rotated in the opposite direction around the locking piece to disengage the clamp member,
Next, the board can be easily removed from the device body by the procedure of disengaging the insertion hole and the engagement piece at one end of the board. Thus, the substrate and the device body can be easily attached and detached.

The substrate can be locked by the clamp member as described above, for example, by providing the clamp member with a holding claw for holding the other end of the substrate. Alternatively, the clamp member may be provided with a locking projection at the other end of the board, and the other end of the board may be provided with a locking hole into which the locking projection is fitted. With this configuration, the locking hole of the board is fitted into the locking projection of the clamp member, and the board can be more accurately and reliably fixed to the device body side.

The board fixing method of the present invention is the board fixing method for fixing a board to an equipment body, wherein the substantially L-shaped engaging piece formed on the fixing member attached to the equipment body. Temporarily support through the insertion hole formed at one end of the substrate, and the other end of the substrate is tilted toward the device body centering around the engagement piece, and the other end is held by the clamp member attached to the device body. It is characterized by locking.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION A substrate fixture according to an embodiment of the present invention will be described below with reference to FIGS. The board fixture of the embodiment is composed of a pair of fixing members 3 and a pair of clamp members 4 attached at predetermined positions of the device body 1 to which the board 2 such as a printed board is attached. The device main body 1 is, for example, a housing of the device in which the substrate 2 is housed, a mother board, or the like.

The pair of fixing members 3 are made of synthetic resin, metal or the like, and each have an engaging piece 31 extending in an L shape and a mounting portion 32 to the device body 1. The engagement pieces 31 extend in the same direction, that is, in the illustrated example, in the lower left direction in FIG. 1. A pair of clamp members 4
Is made of a synthetic resin or the like, and has a holding claw 41 and a locking projection 42, respectively. In the present embodiment, the engagement piece 31 has an L-shape bent at a substantially right angle, but it may have another bent shape as necessary, and for example, it is bent at a slightly sharper angle than a right angle. It may have a curved shape.

Further, the board 2 has insertion holes 22 through which the engaging pieces 31 are inserted at one end thereof, that is, the lower side in FIG. 1, and a locking projection 42 is fitted at the other end, that is, the upper side in FIG. It has a locking hole 21 to be locked.

Here, the pair of clamp members 4 has a length substantially equal to the distance between the insertion hole 22 and the locking hole 21 of the board 4 on the side opposite to the extending direction of the engaging piece 31 of the fixing member 3. It is separated.

Next, a procedure for attaching the substrate 2 to the apparatus body 1 by the substrate fixing tool of the embodiment having such a configuration will be described below. First, as shown by the alternate long and short dash line in FIG. 2, the board 2 is held perpendicularly to the board mounting surface of the device body 1, and a pair of insertion holes 22 formed at one end of the board 2 are fixed to a pair. The engaging pieces 31 of the member 3 are passed through. Next, the substrate 2 is fixed to the fixing member 3 as a fulcrum.
In, rotate in the direction A and tilt it so that it is horizontal with the device body 1. At this time, the L-shaped engaging piece 3 of the fixing member 3
Since 1 acts as a hook, the substrate 2 does not come off from the fixing member 3.

When the substrate 2 becomes substantially horizontal to the device body 1 and the other end of the substrate 2 comes into contact with the clamp member 4,
By aligning the pair of locking holes 21 of the board 2 with the locking projections 42 of the pair of clamp members 4, respectively, and pressing the other end of the board 2 toward the device body 1 side, the other end of the pair of holding holes 21 is pressed. It moves over the tab 41 and moves downward. As a result, the upper surface of the other end of the board 2 is pressed from above by the pressing claw 41, and the board 2 is fixed to the device body 1.

When the board is removed from the device body 1, the procedure reverse to the above is carried out. This procedure is as follows, for example. First, the operator moves the pressing claw 41 to a direction in which the operator manually presses the other end of the substrate 2, for example, to the left side in FIG. The locking piece 31 of the fixing member 3 is rotated in the B direction in FIG. And the substrate 2
2 moves to the position indicated by the alternate long and short dash line in FIG. 2, the board 2 is moved to the left side in FIG. 2 in a direction substantially horizontal to the device body 1, and the insertion hole 22 is removed from the engagement piece 31.

In the board fixture constructed as described above,
The substrate 2 is fixed to the device body 1 by the fixing member 3 and the clamp member 4 without using a structure such as a screwing tool.
It can be easily attached to and detached from the side, and workability can be improved.

The above is the embodiment in which the fixing member and the clamp member constituting the substrate fixing member are attached to the apparatus main body, but in addition, for example, the fixing member and the clamp member are supported in different sheet shapes. Mounted on the member,
By attaching the support member to the device body, the fixing member and the clamp member can be indirectly attached to the device body.

[0021]

As described above, according to the present invention, the board fixing device and the board fixing method can be attached and detached between the board and the apparatus main body with one touch, and the workability at the time of attachment and detachment can be improved. Can be provided.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a board fixture according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a procedure for fixing a board by the board fixture shown in FIG.

FIG. 3 is an explanatory view of a conventional board fixture.

[Explanation of symbols]

 1 Device Main Body 2 Board 3 Fixing Member 4 Clamping Member 31 Engaging Piece 32 Mounting Part 41 Presser Claw 42 Locking Protrusion

Claims (4)

[Claims] 1. A board fixing tool for fixing a board to a device body, comprising a fixing member and a clamp member attached to the device body, wherein the fixing member extends in a substantially L shape. The clamp member is separated from the engaging piece by a predetermined length on the side opposite to the extending direction, and the substrate has an insertion hole of the engaging piece at one end. And a second end of which is locked to the clamp member. 2. The board fixture according to claim 1, wherein the clamp member has a holding claw for pressing the other end of the board, and the locking is performed by the holding claw. 3. The clamp member has a locking projection at the other end of the board, and the board has a locking hole into which the locking projection is fitted at the other end. The substrate fixture according to claim 1 or 2, wherein the substrate fixture is provided. 4. A method of fixing a substrate to a device body for fixing the substrate to a device body, wherein a substantially L-shaped engaging piece formed on a fixing member attached to the device body is formed at one end of the substrate. Temporarily supporting through the insertion hole, tilting the other end of the substrate toward the device main body with the engaging piece as the center, and locking the other end by a clamp member attached to the device main body. How to fix the board.