JPS5963621A - Switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides that instead of the contact spring pieces of conventional switches (mainly leaf switches) being all strip-shaped thin metal plates,
The contact spring piece is made of a thin wire-like small-diameter metal wire, and since the contact spring piece is a small-diameter wire material, mutual contact points are formed when the switch is activated (when the spring piece bends due to compression). In order to cover weak points such as misalignment that prevents accurate contact, or easy deformation and distortion due to external pressure or impact, a part or all of the operating part of the contact spring piece is covered. , a completely new switch characterized by being provided with a guide structure having an appropriately configured structure that restricts its horizontal movement and guides its X vertical vertical movement to enable accurate bending movement of the spring piece and contact contact. It is something.

By using a small-diameter metal wire as a contact spring piece, in particular, compared to a switch that uses a contact spring piece made of a thin strip of metal with a width, the cost is less than a fraction (1/1)
It is possible to construct a switch that is extremely thin (~1 or less) and is small and compact overall, which greatly expands the range of uses of the switch, and keeps costs low. A switch with many features such as excellent durability is obtained,
Again, if the guide structure is formed into a flat box shape, in addition to the original functions and effects of the structure, it also has the effect of covering the contact spring piece as a cover and protecting it from dust.

Next, an embodiment of the present invention will be described. The present invention provides a contact spring piece 2a of two or more pieces made of thin wire-like small diameter metal wire (eg, diameter 0.25 am).

Jb, 2c... are buried approximately parallel to the plastic insulating base l (embedded in the base by insert molding of plastic), and each contact spring piece 2a, Jb', Jc... The contact spring pieces 2a, 2b, 2c are placed close to the left and right sides of the part of the insulating base l that protrudes to one side (2ζb on the operating side, and the terminal part protrudes to the other side). While regulating the left and right displacement of
A guide structure A in the form of a box, left and right side plates, or a frame is provided to guide vertical vertical movement.

In the above, the actual method of one embodiment of the switch of the present invention is summarized in 15 to 2.
omm, width approx. 1.5-2 ++1m (conventional approx. i),
The height is approximately 3-4 mm.

The contact spring pieces 2a, 2bX, 2c... are, for example, small-diameter metal wires (e.g., diameter Q,
25 mm), and, for example, the tip portion thereof is curved and protruded to form contacts Ja, 3b, 3c, etc., and if necessary, the contact portion or the entire contact portion is plated with silver.

In the figure, youaS 2. c is the movable side contact spring piece, 2b
indicates the contact spring piece on the flat side.

Unfortunately, the above guide structure A is basically a contact spring piece ja,
:1. Contact spring pieces a, 2b% 2c so as to guide the vertical vertical movement of X while regulating the horizontal displacement of b, 2c...
The specific structure is arbitrary as long as it has a flat box-like, left-right side plate-like, or flat frame-like structure, for example, in close proximity to the left and right side surfaces of. In addition, the contact spring pieces 2a, 2bX
If 2c... are displaced left and right relative to each other, the positions of the contacts will shift and they will not be able to make accurate contact. 4If you don't move,
For example, the contact points are misaligned and do not make accurate contact.

As an example of the configuration of structure A, 1) each contact spring piece 2a, 2b, 2c-,
A flat hollow part covers the entire part protruding to one side of the insulating base l, and has a flat hollow part inside that regulates the left and right displacement of each contact spring piece 2a, B1, C... and guides the vertical vertical movement. A flat box-shaped guide structure Al is provided, and the guide structure A+
The left and right side plate bases 5, 5 are rotatably attached to the insulating base l with a support shaft 6, and the tip of the movable contact spring piece 2b is secured to the hollow part ψ tip p. When Al is pressed P from the outside, the structure A1 rotates about the support shaft 6, and the tip of the structure A1 is rotated about the support shaft 6.
The movable contact spring piece 2'aL engaged with the contact 3 works together to vertically curve up and down without horizontal displacement under the guidance of the structure Am.
a, 3b or 3c are in exact contact with each other. (Figures 1 and 2) 2) Cover the entire part of each contact spring piece 2a, Jb, 2c... that protrudes to one side of the insulating base l, and insert each contact spring piece a inside. , Jb, 2c, .
From the slit 7 at the tip of the hollow part ψ of the structure A2, the tip of the movable contact spring piece is protruded to the outside of the structure A2 so as to be able to press up and down, and the tip of the protruded movable contact spring piece 21iL is pressed. P, so that the contact spring piece is vertically curved up and down without horizontal displacement under the guidance of the structure A2, so that the contacts 3a, 3b, or 3c are brought into accurate contact. (Fig. 3) 3) At the tip of each contact spring piece 2a, 2b, 2c... around the base of the part protruding to one side of the insulating base l, each contact spring piece 2a, 2b is attached. A frame-shaped guide structure A3 is provided, which has a flat guide frame portion that restricts the left-right displacement of %2C and guides the vertical vertical movement, and whose base frame portion 9 is fixed to an insulating base l. , Press the tip of the movable contact spring piece P in the same way as a conventional switch to open the contact 3a, 3b or 3c.
something that comes in contact with. (FIG. 4), etc., but the structure is not limited to these.

Since the present invention has the configuration and operation as described above, the performance of the switch is not superior to, or inferior to, conventional switches made of contact spring pieces made of strip-shaped thin metal plates. Since the diameter (width) can be made extremely small, the switch as a whole has the advantage of being extremely thin and compact, which has the effect of expanding the application of the switch to cases where conventional methods would not be possible due to space constraints. It also has the advantage that it can be provided at low cost.

[Brief explanation of drawings]

The drawings are all enlarged views of the embodiment switch of the present invention, and the first
The figure is a partially cutaway front view of the embodiment switch of the guide structure A1.
A plan view and a cross-sectional view, FIG. 2 is a partially cutaway front view of another embodiment switch of guide structure Al, and FIG. 3 is a partially cutaway front view of another embodiment switch of guide structure A2. 4
The figure is a partially cutaway front view of the embodiment switch of the guide structure A3. A...Guide structure, l...Insulating base, core a, 2b...
2c...Contact spring piece, 3a, 3b, 3c...Contact,
D... Hollow part, S... Side plate base, 6... Support shaft, 7
...Slit, t...Guide frame portion, 9...Base frame portion. Figure 1 Figure 2 Figure 1 Figure 3

Claims (1)

[Claims] (i) Contact spring pieces made of small-diameter metal wire are buried approximately parallel to the insulating base, and each contact spring piece is placed on the left and right sides of the portion of the contact spring piece that protrudes to one side of the insulating base. A switch that is provided with a guide structure adjacent to each contact spring piece that regulates the left-right displacement and guides the vertical vertical movement. (2) Contact spring pieces made of small-diameter metal wires are buried approximately parallel to the insulating base, and the entire part of each contact spring piece that protrudes to one side of the insulating base is covered, and each contact is placed inside. A flat box-shaped guide structure is provided with a flat hollow part that regulates the horizontal displacement of the spring piece and guides the vertical vertical movement, and the left and right side plate bases of the structure are rotatable with support shafts on an insulated base. A switch that is pivotally mounted and configured by engaging the tip of the movable contact spring piece with the tip of the hollow part. (3) A contact spring piece made of small diameter metal wire is buried approximately parallel to the insulating base, covering the entire part of each of the six contact spring pieces that protrudes to one side of the insulating base, and each contact spring piece is buried inside the insulating base. A flat box-shaped guide structure having a flat hollow part that regulates the left-right displacement of the spring piece and guides the vertical vertical movement is integrally fixed to an insulating base, and the structure is inserted through a slit at the tip of the hollow part of the structure. A switch in which the tip of the movable contact spring piece protrudes outward so that it can be pressed up and down. (4) Contact spring pieces made of thin metal wire are buried approximately parallel to the insulating base, and the base frame is placed around the protruding part of each contact spring piece on one side of the insulating base near the base. A switch with a frame-shaped guide structure whose parts are fixed to an insulating base.