JPH0138839Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention consists of a terminal board on which the required number of fixed terminals are arranged in a row, and a front-view switch frame. Regarding the improvement of the so-called lever switch, in which the operation of the slider stored in the lever switch is carried out by a lever that is rotated in a stepwise manner by a moderation mechanism, the main improvement is that the slider is connected to the terminal board in the lever switch. The main feature is that a guide mechanism is provided for sliding parallel to the main body.

In recent years, audio equipment has also tended to become smaller, and as a result, the lever switch, which is one of its components, has naturally been required to be smaller. There is.

However, if the lever switch is to be made smaller, the length of the fixed terminal board will inevitably be shortened, and the fixed terminal board will be stored in the slider storage hole and the storage hole formed by the terminal board and the switch frame. The length of the storage part of the slider is shortened, and when the slider is operated with a rotating lever under such a configuration, the slider will not slide parallel to the terminal board due to a deflection phenomenon, and as a result, When the lever is brought to the normal switching position, the movable contact piece and fixed terminal that should be in contact are not in contact, or when the lever is brought to the normal switching opening position. However, there was a defect in which the movable contact piece and the fixed terminal were in contact with each other, which fundamentally nullified the function of the switch. or,
Even if a switch function were obtained, the problem of slider deflection remained unresolved, and the slider would not operate smoothly, resulting in a lack of operability.

Therefore, the present invention was created with the intention of eliminating the above-mentioned conventional drawbacks.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the structure of the present invention will be described in detail with reference to the drawings showing one embodiment thereof.

FIG. 1 shows an overall side view of a small lever switch according to the present invention, FIG. 2 shows an exploded perspective view of the main parts, and FIG. 3 shows a sectional view of the main parts. In the drawings, reference numeral 1 denotes a switch frame bent in front view, and a required number of fixed terminals 2 are provided at the lower end opening of the switch frame 1 so as to close the opening.
A terminal board 3 having rows of terminals arranged thereon is mounted and fixed, and a slider housing hole 4 is formed between the terminal board 3 and the switch frame 1. Reference numeral 5 denotes a slider, and a mounting groove for attaching a movable contact piece is formed in the portion of the slider 5 that is slidably stored in the storage hole 4, and a cross-sectional shape is formed at one end of the slider. A long rectangular arm 6 extends in the vertical direction, and a receiving portion 7 in a side view is provided on the upper surface of the distal end of the arm 6.
is formed. Further, on both sides of the tip of the arm 6, there are inclined surfaces 8 which become lower as the upper surface moves outward.
A guide piece 9 having a shape is formed in a protruding manner. 10 is a lever frame, and a lever 11 is rotatably supported on the lever frame 10. The lever 1
1 has an arm 12 extending downward, and the lowermost end of the arm 12 is provided with an engaging portion 13 having a circular shape in side view.
is formed. This engaging portion 13 engages with a receiving portion 7 formed at the end of the arm 6 of the slider 5,
The slider 5 is moved linearly in accordance with the rotation operation of the lever 11. An engagement groove 14 having a V-shape in side view is formed on the tip side of the lever 11, and this engagement groove 14 engages with a sphere elastically supported by an elastic member provided on the lever frame 10. It constitutes a moderation mechanism for the lever 11. The slider 5 passes through the lower part of the lever frame 10 in the sliding direction of the slider 5 and also in the vertical direction.
A support hole 15 for supporting the arm 6 of the slider 5 is bored in the side wall of the support hole 15.
a guide groove 1 that engages a guide piece 9 provided on the arm 6 of the
A notch 6 is formed toward the sliding direction of the slider 5. This guide groove 16 is formed in the guide piece 9 in order to align with the guide piece 9 without play.
An inclined surface 17 corresponding to the inclined surface 8 is formed.

The reason for the presence of the inclined surface of the guide piece 9 is that the guide piece 9 can be easily inserted when pushing the arm 6 of the slider 5 from the lower end opening side of the support hole 15 of the lever frame 10. Reference numeral 18 denotes a hook-shaped mounting groove cut out in the lower part of the lever frame 10 toward the sliding direction of the slider 5, and the mounting groove 18 is cut out in the end of the top plate of the switch frame 1. By engaging with the hook-shaped attachment piece 19 formed by this, the lever frame 9 is attached and fixed to the switch frame 1. Further, in order to further ensure the attachment of both, the outer plate 21 forming the mounting groove 18 is made relatively thin to maintain elasticity, and the engagement piece 22 is formed on the inner wall of the outer plate 21. This engaging piece 22 is engaged with the engaging hole 23 bored in the side plate of the switch frame 1 when the above-mentioned two are attached.

Next, the effects of the present invention having the above configuration will be explained.

First, when the lever 11 is rotated downward to the switching position as shown in FIG. , slider 5 is the first
The switch is switched by sliding to the left in the figure. Also, if you return the lever 11 to its original position,
In conjunction with this operation, the slider 5 also returns to its original position, returning the switch to its original position. In the case of such a switching operation, according to the conventional product, the slider moves in a straight line due to the rotation of the lever, so the slider cannot be moved parallel to the terminal board, which causes deflection. Otherwise, the slider 5 is moved in a deflected state, resulting in a number of defects as mentioned above. However, according to the present invention, the guide piece 9 protruding from the side of the arm 6 of the slider 5 and the lever Since the guide groove 16 cut out in the side wall of the support hole 15 of the frame 10 is in a coupling relationship, the slider 5
The movement is always parallel to the terminal board 3.

Therefore, the switch can be reliably changed, and practical effects such as smooth movement of the slider and excellent operability can be obtained.

It should be noted that the present invention can be particularly applied to a small lever switch to fully exhibit its effects. Further, the guide piece 9, which is the gist of the present invention, is not limited to the illustrated position, and furthermore, its length in the direction of movement of the slider is not limited to the illustrated length. The point is that the position, length, and shape of the slider should be such that it can exhibit the above-described function of preventing runout of the slider.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an overall side view of a lever switch, FIG. 2 is an exploded perspective view of a main part, and FIG. 3 is an enlarged sectional view taken along line A--A in FIG. 1. In the figure, 1 is a switch frame, 5 is a slider, 6 is an arm of the slider, 7 is a receiving part formed on the upper surface of the tip of the arm 6, 9 is a guide piece protruding from the side of the arm 6, 10 is a lever frame, 11 is a lever, 12 is an arm of the lever, 15 is a support hole, 16
18 is a guide groove cut out in the side wall of the bearing hole 15;
19 is a hook-shaped mounting groove, 22 is a hook-shaped mounting piece,
23 indicates engagement.

Claims (1)

[Scope of utility model registration request] A lever that can be switched in stages with a moderation mechanism,
In a lever switch equipped with a slider that can be slid by operating the lever, a guide piece for sliding the slider parallel to the fixed terminal board is provided near the connection part of the slider with the lever, and the lever A guide mechanism for a slider, characterized in that a guide groove is provided in the frame along the sliding direction of the slider, and the guide piece is made to face the guide groove.