JPH0140229Y2 - - Google Patents

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) The present invention relates to a board fixing device in electronic equipment.

(Prior Art) In recent years, in electronic devices, various substrates such as printed circuit boards, wiring boards, mounting plates, chassis, etc. are laminated in many layers, and various electronic components are arranged on these.

When assembling an electronic device or inspecting and repairing the electronic device, it is necessary to rotate the various stacked boards via a hinge attached to one end, and in some cases, it is necessary to stand only a specific board.

(Problem that the invention aims to solve) Various boards like these need to be moved from time to time, but there is no suitable fixing device on the opposite side of the hinge mounting end of the conventional board, which is a problem when designing equipment. Ta. If there were a fixture that could be easily moved and fixed securely, efficiency would be greatly improved.

Also, when stacking multiple boards, the boards are held at a certain distance, but if the board moves during use or the fixture that holds the boards deforms, this space becomes smaller. There is a risk that wiring such as lead wires from each electronic component may come into contact with components on other boards, causing a contact accident. Therefore, it is required to reliably maintain the substrate spacing.

The purpose of the present invention is to meet such conventional demands by providing a fixture that can easily fix one end of various substrates, thereby contributing to an increase in work efficiency.

Structure of the Invention (Means for Solving Problems) The board fixing device of the present invention includes a mounting plate 1 having a fixing means 3 at the bottom thereof, and a base extending upward from one edge of the mounting plate 1. An end portion 2a and a distal end portion 2 connected from the base end portion 2a toward the other edge of the mounting plate 1.
b, and a chevron-shaped elastic plate 2 which is elastically deformable and formed into a chevron-shape, and a tip portion 2b of the chevron-shaped elastic plate 2.
is configured in an open state separated from the mounting plate 1 by a distance corresponding to the thickness of the board to be fixed, and one end of the board 18 is fixed between the tip 2b of the chevron-shaped elastic board 2 and the mounting plate 1. It is a substrate fixing tool, and the outer side of the tip portion 2b of the chevron-shaped elastic plate 2 is attached to the substrate 1.
8 is formed as an inclined surface 19 that elastically deforms the distal end portion 2b of the chevron-shaped elastic plate 2 toward its base end portion 2a when pressed downward, and the distal end portion 2b
When the substrate 18 pushed downward is located between the tip 2b of the chevron-shaped elastic plate 2 and the mounting plate 1 due to the elastic deformation and restoration of the chevron-shaped elastic plate 2, By restoring the tip 2b of the chevron-shaped elastic plate 2, a locking step 6 that locks the end of the substrate 18 is formed, and corresponds to the position of the locking step 6 that locks the end of the substrate 18. A locking pawl 7 for restricting movement of the board 18 is provided at a position on the mounting plate 1 that is
The main point is that this has been established.

(Function) The board fixing tool of the present invention is attached to another board or the like by means of the fixing means 3 provided at the bottom of the mounting plate 1, and fixes the end portion of the board 18 as described above.

When one end of the substrate 18 comes into contact with the outside of the distal end 2b of the chevron-shaped elastic plate 2 from above and further presses it downward, the chevron-shaped elastic plate 2 deforms toward the proximal end 2a.
The substrate 18 moves toward the lower mounting plate 1.

Due to this elastic deformation of the chevron-shaped elastic plate 2, the end portion of the substrate 18 separates from the outside of the tip portion 2b of the chevron-shaped elastic plate 2, and the chevron-shaped elastic plate 2, the tip portion 2b, and the mounting plate 1 are separated.
When the end portion 2b of the chevron-shaped elastic plate 2 is located between
tries to restore its original shape, and the locking step portion 6 provided on its inner lower end surface locks onto the end of the substrate 18 and applies a restoring force to the end of the substrate 18.

In this way, a locking pawl 7 is provided on the mounting plate 1 at a position corresponding to the position of the locking stepped portion 6 that locks the end of the substrate 18, and the locking pawl 7 acts in a manner opposite to the above-mentioned restoring force. The movement of the substrate 18 in the direction is restricted.

As a result, the substrate fixing device of the present invention can easily press the tip of the chevron-shaped elastic plate 2 by simply pushing the substrate 18 from above.
Due to the elastic deformation and restoration of b, this chevron-shaped elastic plate 2
A part of the substrate 18 is fixed between the distal end portion 2b and the mounting plate 1 while restricting movement of the substrate 18.

(Example) Below, the present invention will be explained in detail based on one embodiment shown in the drawings.
In this embodiment, reference numeral 1 denotes a mounting plate, on the upper part of which is provided an angle-shaped elastic plate 2, and on the lower part thereof is provided with mounting plate fixing means 3. The chevron-shaped elastic plate 2 is formed to protrude in the direction from one end edge to the other end edge of the mounting plate 1, and includes a fixed plate 2a as a protruding root portion and a movable piece 2b as an easily movable tip portion.
The top portion 4 at the boundary between the two is made thinner and configured to be more easily elastically deformed.

A tapered surface 5 is provided at the outer tip of the moving piece 2b.
However, on the inner lower end surface thereof, a locking protrusion 6 forming a locking step is provided. The moving piece 2b is
Although it is easily elastically deformed in the direction of the fixed piece 2a, a locking pawl 7 is integrally provided on the mounting plate 1 below the elastically deformed position. In this embodiment, as the fixing means 3 at the lower part of the mounting plate 1, elastic support wings 9 are provided upward on both sides from the lower end of the center shaft 8, and from the shoulder 10 at the upper end of the support wings 9, the mounting plate 1 A connecting piece 12 is extended toward the lower surface of. Naturally, other fixing means can be used as well. Reference numeral 13 denotes a protrusion provided on the lower surface of the mounting plate 1 to prevent the fixture from bending.

In order to use the fixture of the first embodiment constructed in this way, first, the substrate 1 such as a chassis or a circuit board is attached.
The fixing means 3 is inserted into the mounting hole 14 of 1, and the protrusion 13 is inserted into the bend prevention hole 15 and fixed to the substrate 11.

Next, one end of the substrate 18 is connected to the chevron-shaped elastic plate 2 from above.
When it comes into contact with the outside of the distal end 2b and is further pressed downward, the distal end 2b of the chevron-shaped elastic plate 2 deforms toward the proximal end 2a, and the substrate 18 deforms downward (toward the mounting plate 1). Moving.

Due to this elastic deformation of the chevron-shaped elastic plate 2, the end portion of the substrate 18 separates from the outside of the tip portion 2b of the chevron-shaped elastic plate 2, and the chevron-shaped elastic plate 2, the tip portion 2b, and the mounting plate 1 are separated.
When the end portion 2b of the chevron-shaped elastic plate 2 is located between
tries to restore its original shape, and the stepped portion of the locking protrusion 6 provided on its inner lower end surface locks onto the end of the substrate 18 and applies a restoring force to the end of the substrate 18.

Since a locking pawl 7 is provided on the mounting plate 1 at a position corresponding to the position of the locking protrusion 6 that locks the end of the board 18, the restoring force of the tip 2b of the chevron-shaped elastic plate 2 is Movement of the substrate 18 in the opposite direction is restricted.

As a result, in the board fixing tool of this embodiment, simply by pushing the board 18 from above, the tip 2b of the chevron-shaped elastic plate 2 is elastically deformed and restored, and the tip 2b of the chevron-shaped elastic plate 2 and the mounting plate 1 are connected to each other. During this time, movement of the substrate 18 is restricted and one end of the substrate 18 is fixed.

To release this lock if necessary, move the moving piece 2b.
with your finger in the direction of the fixing piece 2a (direction S in Figure 3) as above.
When the substrate 18 is moved upward, the substrate 18 comes into contact with the tapered surface 5 and leaves the fixture of this embodiment. Next, the movable piece 2b returns to its original position by the return force caused by elastic deformation.

Furthermore, the board fixing device of this embodiment has a chevron-shaped elastic plate 2.
Since one end of the substrate 18 can be fixed by only deforming the structure, the structure and handling are simple. Furthermore,
Since the locking pawl 7 is provided, the movement of the board 18 can be fixed, and even if a force is applied to the board 18 in the direction of arrow Q in FIG. 2 after fixing, the mounting plate 1 will not be deformed. The substrate 18 is stably fixed. As a result, the distance between the two boards 11 and 18 does not change, and accidents such as lead wires of electronic components touching other boards due to a decrease in the distance between the boards do not occur.

FIG. 4 shows a second embodiment of the present invention. In this embodiment, the mounting plate 1 is composed of a column 20 and an upper mounting plate 1a and a lower mounting plate provided at the upper and lower ends thereof, and the upper mounting plate 1a A chevron-shaped elastic plate is provided on the lower mounting plate 1.
A fixing means 3 is provided at b. The support column 20 is designed so that it hardly deforms in response to lateral forces.
Its cross section is formed into a plus (+) shape.

Therefore, the fixing means 3 is inserted into the mounting hole 14 of the board 11.
Insert the upper mounting plate 1a as in the first embodiment.
When another board 18 is rotatably inserted onto the top and locked as shown in FIG. 5, the board 11 and the board 18 are fixed with a constant distance L between them.

In this embodiment, the column 20 between the upper mounting plate 1a and the lower mounting plate 1b hardly deforms even when subjected to horizontal force. Therefore, even if a horizontal force is applied to the board, its movement is restricted by the locking claws 7, and even if the board 18 is moved horizontally, the mounting plate 1 will not deform. As a result, problems such as those caused when the distance between the boards 11 and 18 becomes small will not occur, and wiring such as lead wires will not come into contact with the other board, causing an accident.

6 and 7 show a third embodiment of the present invention. In this embodiment, an elastic plate 21 that is biased upward is provided at the end of the mounting plate 1.
Even if the thickness of 8 changes, it plays the role of being able to be locked as shown in FIG.

The substrate fixtures shown in these embodiments are usually manufactured by integral molding from a rigid resin such as nylon.

Effects of the Invention The board fixing device of the present invention described above can extremely easily fix one end of the board by simply pressing the end of the board against the chevron-shaped elastic plate on the mounting plate.

Further, such fixing of the substrates is achieved only by elastic deformation and restoration of the tip of the chevron-shaped elastic plate, and since the mounting plate does not deform in any way, the distance between the substrates does not change. Therefore, it is possible to obtain the effect that wiring such as lead wires protruding from the bottom of the board does not touch other boards, and no accidental contact accidents occur.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing the first embodiment of the present invention;
Fig. 3 and Fig. 3 are partially cutaway front views showing the same example in use, Fig. 4 shows the second embodiment of the present invention, A is a front view, B is a side view, and Fig. 5 is a use of the same example. FIG. 6 is a front view showing the third embodiment, and FIG. 7 is a partially cut-away front view showing the same state in use. DESCRIPTION OF SYMBOLS 1... Mounting plate, 2... Chevron-shaped elastic plate, 3... Fixing means, 6... Locking protrusion, 7... Locking claw, 11,1
8... Board, 20... Support.

Claims (1)

[Claims for Utility Model Registration] A mounting plate 1 having a fixing means 3 at the bottom thereof, and a base end portion 2 extending upward from one edge of the mounting plate 1.
a, and a chevron-shaped elastic plate 2 that is elastically deformable and is formed into a chevron-shape from a distal end portion 2b that is continuous from the base end portion 2a toward the other edge of the mounting plate 1, the chevron-shaped elastic plate 2 The tip portion 2b of the board 18 is configured in an open state separated from the mounting plate 1 by a distance corresponding to the thickness of the substrate to be fixed, and the substrate 18 is placed between the tip portion 2b of the chevron-shaped elastic plate 2 and the mounting plate 1. It is a board fixing tool for fixing one end, and when the outside of the distal end portion 2b of the chevron-shaped elastic plate 2 is pressed downward by the substrate 18, the distal end portion 2b of the chevron-shaped elastic board 2 is fixed at its proximal end. It is formed as an inclined surface 19 that is elastically deformed in the direction of the tip portion 2a, and a substrate 18 that is pushed downward is formed at the inner lower end portion of the tip portion 2b for elastic deformation and restoration of the tip portion 2b of the chevron-shaped elastic plate 2. Therefore, when located between the tip 2b of the chevron-shaped elastic plate 2 and the mounting plate 1, the locking stepped portion 6 that locks the end of the substrate 18 is restored by the restoration of the tip 2b of the chevron-shaped elastic plate 2. The substrate 1 is placed on the mounting plate 1 at a position corresponding to the position of the locking step 6 which is formed and locks the end of the substrate 18.
A board fixing tool provided with a locking claw 7 for regulating movement of the board 8.