JPH06152166A - Board attaching and detaching utensil - Google Patents

Abstract

PURPOSE:To attach and detach a unit board to and from a base by one action and to make the best use of the component mounting range and the circuit formation pattern range of the unit board. CONSTITUTION:A turning and moving member 13 which is shaft-supported at a through hole 12 in a unit board 11 is situated with reference to a base 20 to and from which the unit board 11 is attached and detached and which is provided with a U-shaped groove 21. A bump part 14 coming into contact with the front edge 22 of the base seed 20 and an elastically deformable hook 15 which is provided with a hook part 16 coupled to the U-shaped groove 21 at the tip are installed at the turning and moving member 13. When a turning and moving force is exerted on the turning and moving member 13, the coupling and detaching action of the hook part 16 to and from the U-shaped groove 21 and the separating and detaching action of the unit board 11 by pressing the bump part 14 to the front edge 22 of the base stand 20 can be performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substrate attaching / detaching tool having a function of preventing a substrate contained in an equipment housing from coming off.

[0002]

2. Description of the Related Art Conventionally, a substrate attaching / detaching device of this type is constructed as shown in FIG. In the figure, the unit substrate 34 is detachably provided on a base 31 as a part of an equipment housing (not shown) having two protrusions 32 and 33, and a lower edge portion thereof has a protrusion 32. , 33, and has an insertion hole 35 at the front edge. The rotating member 36 is pivotally supported by the unit substrate 34 and has a claw portion 37 that engages and disengages with one of the protrusions 32 and 33.
4 is a detachable member. The rotating member 36 has a hook 39 having a hook portion 38 capable of locking the wall surface of the insertion hole 35.
And an operation piece 40 for elastically deforming the hook 39.

In the conventional board attaching / detaching tool thus constructed, the operation piece 40 is pressed in the direction indicated by arrow C in FIG. 3 to release the hook 39 from the insertion hole 35, and then the arrow By rotating the rotating member 36 in the direction indicated by D, the unit substrate 34 can be separated from the base 31. On the other hand, in order to mount the unit substrate 34 on the base 31, the operation piece 40 is pressed to move the claw portion 37 to the protruding portion 3.
2 and the hook portion 38 is locked to the wall surface of the insertion hole 35.

[0004]

In this conventional board attaching / detaching tool, a different type of operation force, that is, a two-action operation of a pressing force and a turning force is required for the operation piece at the time of attachment / detachment. There is a problem that it is not possible to smoothly perform the attaching / detaching operation, and the operation is cluttered. Further, since it is necessary to make a through hole in the board, the component mounting range and the circuit pattern forming range are narrowed by that much, and there is a drawback that the board cannot be utilized to the maximum extent.

[0005]

A substrate attaching / detaching tool according to the present invention comprises:
A substrate, a base on which the substrate is mounted to be attached and detached, and which has a recessed groove at the lower front end, and a pivotally supported pivotal support on the front edge of the substrate and in contact with the front end face of the base during rotation. And a rotating member provided with a flexible hook having a hooking portion which is a fulcrum and a hook portion which can be locked in the concave groove.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view showing a substrate attaching / detaching tool according to an embodiment of the present invention, FIG. 2 shows a state of attaching / detaching a unit substrate to / from a base, (a) shows a mounted state, and (b) shows a detached state. It is each sectional drawing shown.

In the figure, a unit substrate 11 is a substrate having an electronic device (not shown) such as a semiconductor device, and is detachably provided on the base 20. The rotating member 13 for attaching and detaching the board is provided with a pin 17 in the through hole 12 of the unit board 11.
Is pivoted through. An abutting portion 14 that contacts the front end surface 22 of the base 20 is formed below the rotating member 13, and serves as a fulcrum when the unit substrate 11 is detached. Further, at the lower end of the rotating member 13, a hook 15 having a hook 16 capable of engaging with a concave groove 21 provided below the front end of the base 20 is elastically deformable.

In the substrate attaching / detaching tool of this embodiment having the above-mentioned structure, the unit substrate 11 can be attached / detached to / from the base 20 by applying only the turning force to the rotating member 13. That is, the unit board 11 is used as the base 20.
To disengage from the rotating member 13, as shown in FIG.
By applying a turning force in the direction of arrow A, the abutting portion 14 presses the front end face 22 of the base 20 as a fulcrum, and the reaction force causes the unit substrate 11 to move forward (direction of arrow B). In addition, since the abutting portion 14 moves downward, the hooked portion 16 and the concave groove 21 are released from the locked state. With this, the unit substrate 11 can be separated from the base 20.

On the other hand, in order to mount the unit substrate 11 on the base 20, if the rotating member 13 is lifted up in the direction opposite to the arrow A and pressed in the inserting direction, the hook portion 16 of the hook 15 is attached to the base 20. While hitting the lower end of the front end face 22 and elastically deforming, the concave groove 21 is locked and mounted.

[0010]

As described above, according to the present invention, by applying only the turning force to the rotating member, the attachment / detachment operation of the substrate with respect to the base can be smoothly performed in one action. The effect is that the mounting space of components and the formation range of circuit patterns can be maximized.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a substrate attachment / detachment according to an embodiment of the present invention.

2A and 2B are cross-sectional views showing a state in which a unit substrate is attached to and detached from a base by a substrate attaching / detaching tool, FIG. 2A is a mounted state, and FIG. 2B is a detached state.

FIG. 3 is a perspective view showing an example of a conventional board attaching / detaching tool.

[Explanation of reference numerals] 11 unit substrate 13 rotating member 14 abutting portion 15 hook 16 hook portion 20 base 21 concave groove 22 front end surface

Claims (1)

[Claims] 1. A substrate, a base on which the substrate is mounted to be attached and detached, and which has a concave groove at the lower end of the front end, and a pivotally rotatably supported end edge of the substrate and a front end surface of the base. A substrate attaching / detaching device, comprising: a butting part that comes into contact with the concave groove to serve as a fulcrum at the time of rotation, and a rotating member provided with a flexible hook having a hook part that can be locked in the concave groove. Ingredient