JPH0737349Y2 - Substrate support Bracket - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a board support bracket suitable for use in detachably holding a printed board.

[Conventional technology]

Conventionally, as this type of board support bracket, there is a printed board support bracket whose side view is shown in FIG. In the figure, 1 is a base bracket body made of a thick plate material, and 2 is a support metal fitting made of an elastic plate material. An eaves surface 1b is formed on the upper portion of the base bracket body 1 so as to extend in a substantially "L" shape from the base surface 1a, and the eaves surface 1b is shown in a plan view in FIG. Thus, the notch 1c that opens inward is formed.
The support fitting 2 has one side surface 2a fixed to the base surface 1a of the base bracket body 1, and the other side surface 2b is bent and extended at an acute angle. A notch 2c opening inward is formed at the tip of the extending surface 2b of the support fitting 2 as shown in FIG. The notch 2c of the support fitting 2 is formed at a position facing the notch 1c formed in the base bracket body 1, and the notch 2c and 1c are used to show the notch 2c in FIG. Thus, the printed circuit board 3 can be attached with one touch.

That is, the width dimensions h1 and h2 of the cutouts 1c and 2c are formed to be slightly wider than the plate thickness t of the printed circuit board 3, and the cutout step portions 3a and 3b are formed on the upper end surface and the lower end surface of the printed circuit board 3. (FIG. 10), the printed circuit board 3 has the extending surface 2b of the support fitting 2 and the eaves surface 1b of the base bracket body 1.
It is held with a biasing force between and. That is, the notch step
3b is fitted into the notch 2c of the support metal fitting 2 to push down the printed circuit board 3 against the urging force of the support metal fitting 2,
By fitting the notched step portion 3a of the upper end surface into the notched portion 1c of the base bracket body 1, the upper end surface of the printed circuit board 3 is pressed against the eaves surface 1b of the base bracket body 1 against the biasing force of the support metal fitting 2. As a result, the printed circuit board 3 can be securely held between the extending surface 2b of the support fitting 2 and the eaves surface 1b of the base bracket body 1 with one touch.

[Problems to be solved by the invention]

However, according to such a conventional printed circuit board support bracket, there is a problem that when the printed circuit board 3 is removed, the notched step portion 3b of the lower end surface of the printed circuit board support meshes with the notched portion 2c of the support fitting 2, which makes it difficult to remove the printed circuit board 3. It was

That is, when removing the printed circuit board 3, first, the printed circuit board 3 is pushed down against the urging force of the support fitting 2, and the cutout step portion 3a on the upper end surface and the base bracket body 1 are removed.
The fitting (engaging) state with the notch 1c of is released. Then, the printed circuit board 3 is pulled out upward while tilting to the left in FIG. That is, the notch of the support fitting 2
The width dimension h2 of 2c is normally provided with only a small amount of play with respect to the thickness t of the printed circuit board 3, and the printed circuit board 3 must be pulled out obliquely with respect to the cutout 2c. The side surface of 3b and the end surface of the notch 2c of the support fitting 2 mesh with each other, making it difficult to remove the support fitting 2 and possibly damaging the support fitting 2.

Further, in order to prevent this meshing, the width dimension h2 of the notch 2c of the support fitting 2 may be widened, but this causes a problem that back and forth play in the holding state of the printed circuit board 3 becomes large. Met.

[Means for solving problems]

The present invention has been made in view of such a problem, and is such that the tip of the extending surface including the engaging hole portion of the support fitting is bent at an obtuse angle in the holding substrate insertion direction.

[Operation] Therefore, according to the present invention, it is possible to make the removal angle of the held substrate perpendicular to the engaging hole portion at the tip of the extension surface of the support fitting.

〔Example〕

Hereinafter, the board support bracket according to the present invention will be described in detail. FIG. 1 is a side view showing an embodiment of a substrate support bracket according to the present invention, and FIG. 2 is a front view thereof. The board support bracket 100 is composed of a base bracket body 101 made of a thick plate material and a support metal fitting 102 made of an elastic plate material. The support metal fitting 102 has a square hole 102a formed in one side surface 102f thereof. Claw portion 1 formed to project below the base surface 101a of the
It is fixed by inserting it into 01b and bending down this claw portion 101b. The base bracket main body 101 has an upper portion bent and extended in a substantially “L” shape to form an eaves surface 101c. At the tip of the extended eaves surface 101c, as shown in FIG. A notch 101d is formed in the opening.
The cutout portion 101d corresponds to the engaging hole portion in the present invention. Further, the other side surface portion 102b of the support metal fitting 102 is bent and extended at an acute angle, both side edge surfaces 102c are formed so as to be narrowly extended, and a tip end surface 102d thereof is bent at an obtuse angle. Then, a notch 102e opening inward is formed on the tip surface 102d bent at the obtuse angle (Fig. 3).
102e and the notch 101 formed in the base bracket body 101
The printed circuit board 110 as shown in FIG. 4 can be attached with one touch using d and. Cutout 102e
Corresponds to the engaging hole portion in the present invention.

That is, the cutout 102e formed in the support fitting 102 and the cutout 101d formed in the base bracket body 101.
Width dimensions h3 (FIG. 5) and h4 (FIG. 3) of the printed circuit board 110 are formed to be slightly wider than the thickness of the printed circuit board 110. Notch steps 110a and 110b are formed as shown. That is, the cut-out step portion 110b on the lower end surface side of the printed circuit board 110 is obliquely fitted into the cut-out portion 102e of the support fitting 102,
(FIG. 6 (a)) While pushing down the printed circuit board 110 against the biasing force of the support metal fitting 102, the notch step portion 110 a of the upper end surface is fitted into the notch portion 101 d of the base bracket body 101 ( (B)), the upper end surface of the printed circuit board 110 is pressed against the eaves surface 101c of the base bracket body 101 against the urging force of the support bracket 102, and the printed circuit board 1
10 is securely held between the tip surface 102d of the support metal fitting 102 and the eaves surface 101c of the base bracket body 101 with one touch.

Next, the board support bracket 10 thus configured
A method of removing the printed circuit board in 0 will be described. That is, in FIG. 6B, the printed circuit board 11
When the 0 is removed from the board support bracket 100, the printed board 110 is first pushed down against the urging force of the support metal fitting 102, and the cutout step portion 110a of the upper end surface thereof is fitted to the cutout portion 101d of the base bracket body 101. Release the (engaged) state. Then, as shown in FIG. 6A, the printed circuit board 110 is tilted to a position substantially perpendicular to the tip surface 102d of the support fitting 102, and is pulled out upward from such a state. That is, the width dimension h3 of the notch 102e of the support bracket 102
Is formed to be slightly wider than the thickness of the printed circuit board 110.
When it is positioned substantially perpendicular to 102d, some play occurs between the cutout 102e and the cutout step 110b of the printed circuit board 110. Therefore, when pulling out the printed circuit board 110,
The problem that the notch step 110b and the notch 102e of the support metal fitting 102 bite each other and cannot be removed does not occur, and the printed circuit board 110 can be smoothly removed. It becomes possible to prevent the support fitting 102 from being damaged.

Further, the printed board 110 is held by the board support bracket 100 (in FIG. 6 (b), the printed board 110 is inclined with respect to the front end surface 102d of the support fitting 102,
There is no play between the cutout portion 102e and the cutout step portion 110b, and the side surface portion of the cutout step portion 110b and the end surface portion of the cutout portion 102e come to mesh with each other. Therefore, the notch step 110b and the notch
The rattling due to the fitting with 102e is eliminated, and the back and forth rattling in the holding state of the printed board 110 to the board support bracket 100 is suppressed as much as possible.

In this embodiment, the printed circuit board is held, but it goes without saying that the holding board is not limited to the printed circuit board.

[Effect of device]

As described above, according to the board support bracket of the present invention, the extension surface tip including the engaging hole of the support fitting is bent at an obtuse angle in the holding board insertion direction. It is possible to make it perpendicular to the engaging hole portion at the tip of the extension surface of the support fitting, and to prevent damage due to the engagement of the support fitting when attaching or detaching the substrate to be held.

[Brief description of drawings]

1 is a side view showing an embodiment of a substrate support bracket according to the present invention, FIG. 2 is a front view of this support bracket, FIG. 3 is a plan view of this support bracket, and FIG.
The figure is a front view of the printed circuit board held by this support bracket, Fig. 5 is a side view showing the width dimension of the notch formed in the support metal fittings constituting this support bracket, and Fig. 6 is the printed circuit board to this support bracket. 7 is a side view showing a conventional printed circuit board support bracket, FIG. 8 is a plan view of this support bracket, and FIG. 9 is a view in the direction of arrow A in FIG. FIG. 10 is a front view of the printed circuit board held by the support bracket. 100 …… Board support bracket, 101 …… Base bracket body, 101a …… Base surface, 101c …… Eave surface, 101d ……
Notch, 102 ... Support bracket, 102b ... Extension surface, 102d
…… Tip surface, 102e …… Notch, 102f …… One side, 110
...... Printed circuit boards, 110a, 110b ...... Notched steps.

Claims (1)

[Scope of utility model registration request] 1. A base bracket having an engaging hole wider than the plate thickness of a substrate to be held on an eaves surface extending from the base surface in a substantially L-shaped cross section, and an elastic plate member. And one side portion is fixed to the base surface of the base bracket, and the other side portion is bent and extended at an acute angle, and an engaging hole portion wider than the plate thickness of the substrate to be held is provided at a tip portion of the extended surface. A support metal fitting is provided, and one side surface portion of the substrate to be held is inserted and locked in the engaging hole portion of the support metal material, and the other side end surface portion is formed in the engaging hole portion of the base bracket against the biasing force of the support metal fitting. A board support bracket for pressing and holding, wherein a tip of an extending surface including an engaging hole of the support fitting is bent at an obtuse angle in a holding board insertion direction.