JP2009009900A - Slide switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a slide switch which has a mechanism in a switch main body for preventing a wrong operation without impairing operativity. <P>SOLUTION: The slide switch is composed of a knob 2 which can make a pushing and sliding operations, a case 7 provided with a plurality of fixed terminals 8, and a cover 1. A projected portion 3a provided on the knob 2 slides along a guide groove 9 made of a concavo-convex portion formed on the case 7 and the cover 1, and, after a pushing operation, a sliding operation is conducted for a two-step operation and, as a result, a wrong operation can be prevented. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a slide switch that opens and closes an electric circuit by operating a knob from side to side to operate a contact mechanism provided in a switch body, and relates to a slide switch provided with a malfunction prevention mechanism by a two-stage operation.

Conventional slide switches generally have a structure in which a movable contact piece disposed on the lower surface of a knob is operated by operating the knob left and right to come into contact with a fixed contact piece provided on a case. As a countermeasure against malfunction, there has been a slide switch device configured to slide a switch knob by pressing a convex portion formed integrally with the switch knob against an elastic body.
JP 7-326245 A

  However, since the operation of the conventional slide switch is simple, there is a high possibility that it will cause a malfunction if the knob is touched by mistake. As a countermeasure, the knob may be lowered from the panel surface. . However, such an arrangement has a drawback that malfunction can be prevented but operability is deteriorated. Further, since the slide switch device is an external device separately from the switch main body, the slide switch device is large and cannot prevent malfunctioning by itself.

  Therefore, an object of the slide switch of the present invention is to provide a slide switch that can solve the above problems.

  In order to achieve the above object, the present invention provides a malfunction prevention mechanism in the switch body by a two-step operation in which a protrusion is provided on the knob and a guide groove is provided in the switch body and a slide operation is performed after a pressing operation.

According to the present invention, the following effects can be achieved.
(1) Since the contact switching operation of the switch is a two-stage operation in which the slide operation is performed after the pressing operation, the contact is not switched even if touched by mistake, and malfunction can be prevented.
(2) Since the malfunction prevention mechanism is provided, it can be used with the knob protruding from the panel surface, so that the operability is not impaired.
(3) Since a malfunction prevention mechanism is configured in the switch body, a reduction in size can be realized.

  The present invention comprises a switch body composed of a knob that can be pressed and slid, a case provided with a plurality of fixed terminals, and a cover that fits into the case, on a side surface that goes straight in the sliding direction of the knob. A coil spring and a sliding rod are inserted into a round hole provided on the lower surface and a protrusion is provided on the lower surface of the case and the cover to form an uneven portion to guide the protrusion. A malfunction prevention mechanism is configured by a two-stage operation that opens and closes an electric circuit by operating a movable contact that is interlocked with a pressing and sliding operation and bringing it into contact with a fixed terminal. Therefore, when the knob is touched by mistake, it does not operate, and the contact mechanism can be switched by performing a sliding operation after pressing the knob, thereby preventing a malfunction.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 is a top view of a slide switch representing a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line AA ′ of FIG. 1, FIG. 3 is a cross-sectional view taken along the line BB ′ of FIG. CC 'sectional view, FIG. 5 is an exploded perspective view of the slide switch, FIG. 6 is a bottom perspective view of the cover of the slide switch, and FIG. 7 is a principal sectional view showing a state when the slide switch is operated. FIG. 7A shows a state before the slide switch is operated, FIG. 7B shows a state after the slide switch is pressed (before the slide operation), and FIG. 7C shows a state during the slide operation of the slide switch. FIG. 7D shows a return state after the slide operation of the slide switch.

  1 to 7, the cover 1 has a rectangular hole 1a through which the knob 2 passes in the center of the upper surface, and a guide groove 9 that is constructed after fitting the case 7 on one side surface and the side surface facing the side surface. The convex part 1b which comprises, and the fitting hole 1c which fits with the nail | claw part 7b of the case 7 are formed in the other side and the side facing this side.

  The knob 2 has a prismatic portion 2a protruding upward from the rectangular hole 1a of the cover 1 on the upper surface, a through hole 2b for inserting a metal rod 3 constituting the protruding portion 3a on a side surface orthogonal to the sliding direction, and a movable A notch 2c for hooking the flange 4a formed on the contact piece 4, a round hole 2d for accommodating the coil spring 5 and the sliding rod 6 on the lower surface below the prism 2a, and a case at the time of sliding operation A long groove portion 2e is formed in contact with the seven guide portions 7c.

  The case 7 is provided with a plurality of fixed terminals 8 on the lower surface, and a recess 7a constituting a guide groove 9 formed after fitting the cover 1 on one side and the side facing the side, and the other side. A claw portion 7b that fits into the fitting hole 1c of the cover 1 is formed on the side surface facing the side surface. Inside the case 7 are formed a guide portion 7c for stabilizing the sliding operation of the knob 2 and a switching portion 7d for giving an operational feeling to the bottom surface.

  From the above, the prism 2a of the knob 2 is projected from the rectangular hole 1a of the cover 1, the sliding rod 6 is inserted into the round hole 2d provided in the knob 2 via the coil spring 5, and the metal rod is inserted into the through hole 2b. The protrusion 3a is configured by inserting 3 and the flange 4a of the movable contact piece 4 is hooked on the notch 2c. Then, the sliding rod 6 is arranged on the switching portion 7d of the case 7, and the movable contact piece 4 is arranged so as to sandwich the fixed terminal 8, and the fitting hole 1c of the cover 1 and the claw portion 7b of the case 7 are fitted. The slide switch of the present invention is completed.

  In this embodiment, the contact mechanism portion is configured such that the movable contact piece 4 holds the fixed terminal 8. However, the movable contact piece 4 may be configured to see the upper portion of the fixed terminal 8. Further, the protrusion 3a may be integrated with the knob 2 instead of the metal rod 3, and various methods are conceivable.

  The slide switch of the present invention configured as described above is operated as shown in FIG. That is, when the knob 2 is pressed from the state before the operation of the slide switch shown in FIG. 7A, the protrusion 3a is lowered along the guide groove 9, and the movable contact piece 4 is also lowered in conjunction with FIG. 7B. ), The protrusion 3a is lowered to the slide operable position. At this time, the movable contact piece 4 is lowered while holding the fixed terminal 8, and the electric circuit is not switched. Then, as shown in FIG. 7C, by sliding the knob 2, the movable contact piece 4 moves between the one fixed terminals 8 to switch the electric circuit. Finally, after the slide operation is completed, if the pressing force is weakened, the repulsive force of the coil spring 5 pushes up the knob 2 as shown in FIG. 7 (d), and the movable contact piece 4 is also raised and returned to the initial height. To do.

  As described above, the slide switch shown in the present embodiment has a feature that a malfunction prevention mechanism based on a two-stage operation in which a slide operation is performed after a pressing operation is configured in the switch body.

  Furthermore, in the contact mechanism in which the movable contact piece 4 shown in this embodiment holds the fixed terminal 8, high contact reliability can be maintained by double self-cleaning at the time of pressing and sliding. .

  FIG. 8 is a cross-sectional view of the main part of a slide switch in which the shape of the protrusion 3a showing the second embodiment of the present invention is rectangular. By making the shape of the protrusion 3a rectangular, the contact area with the lower surface of the guide groove 9 is widened, and the operation stability when the knob 2 is slid can be increased.

  Furthermore, since the operation stability can be ensured by the above-described projection shape, the guide portion 7c provided in the case 7 is not necessary, and further miniaturization can be realized.

  In the present embodiment, the shape of the protrusion 3a is rectangular, but it may be trapezoidal or semi-elliptical, and various methods are conceivable.

  FIG. 9 is a cross-sectional view of a main part of a slide switch in which the guide groove 9 according to the third embodiment of the present invention has an L shape. By making the guide groove 9 L-shaped, only one-way sliding operation is suppressed. Therefore, the troublesomeness with respect to the operation direction that does not require malfunction prevention can be eliminated.

  In this embodiment, the guide groove 9 is constructed by the cover 1 and the case 7, but it may be formed by only the case 7, and various methods are conceivable.

  In addition, this invention is not limited to said Example, A various deformation | transformation is possible based on the meaning of this invention, and these are not excluded from the scope of the present invention.

  The slide switch of the present invention can be used as a slide switch having a malfunction prevention function by a two-stage operation in which a slide operation is performed after a pressing operation.

It is a top view of the slide switch showing the 1st example of the present invention. It is A-A 'sectional drawing of FIG. It is B-B 'sectional drawing of FIG. It is C-C 'sectional drawing of FIG. It is a disassembled perspective view of the slide switch showing the 1st Example of this invention. It is a cover bottom perspective view of the slide switch showing the 1st example of the present invention. It is principal part sectional drawing which shows the state at the time of operation of the slide switch showing the 1st Example of this invention. It is principal part sectional drawing of the slide switch showing the 2nd Example of this invention. It is principal part sectional drawing of the slide switch showing the 3rd Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cover 1a Rectangular hole 1b Convex part 1c Fitting hole 2 Knob 2a Square column part 2b Through-hole 2c Notch part 2d Round hole 2e Long groove part 3 Metal rod 3a Projection part 4 Movable contact piece 4a Eave part 5 Coil spring 6 Sliding bar 7 Case 7a Concave part 7b Claw part 7c Guide part 7d Switching part 8 Fixed terminal 9 Guide groove

Claims (3)

It consists of a switch body composed of a knob that can be pressed and slid, a case with a plurality of fixed terminals, and a cover, with a protrusion on the side that goes straight in the sliding direction of the knob and a circle on the lower surface. A movable contact piece that interlocks with the pressing and sliding operation of the knob by inserting a coil spring and a sliding rod into the hole, forming a concave and convex portion on the case and the cover, and constructing a guide groove for guiding the protruding portion. A slide switch characterized by comprising a malfunction prevention mechanism by a two-stage operation that opens and closes an electric circuit by actuating and contacting a fixed terminal. 2. The slide switch according to claim 1, wherein the shape of the protrusion is rectangular, and the stability of the slide operation of the knob is enhanced. The slide switch according to claim 1, wherein the guide groove has an L shape, and only a one-way slide operation is suppressed.

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