JP3140526U - Push-on switch - Google Patents

Abstract

An object of the present invention is to provide a push-on switch in which a movable terminal is hardly damaged.
A push-on switch according to the present invention includes an insulating main body including a bottom wall, a front wall in which a first opening is formed, and a receiving hole, and a first exposed in the receiving hole of the insulating main body. A second fixed terminal; a movable terminal accommodated in the accommodation hole of the insulating main body; a drive member disposed on the movable terminal; and an operation member accommodated movably in the accommodation hole. The first and second fixed terminals are each provided with a first contact and a second contact. The movable terminal includes a side portion that contacts the first contact of the first fixed terminal, and a central portion that is located on the second contact of the second fixed terminal and can contact the second contact. The driving member includes a contact portion and a slot capable of pressing the movable terminal. The contact portion of the driving member is formed in an elastic arm shape by the slot.
[Selection] Figure 4

Description

  The present invention relates to a push-on switch that is operated by pressing in a horizontal direction against a wiring board surface used in various electronic devices.

As a conventional push-on switch, a push-on switch disclosed in Patent Document 1 is known. This push-on switch includes an insulating main body in which a storage hole is formed, and a first, A second fixed terminal; a movable terminal contacting the first fixed terminal; a bol-shaped drive member disposed on the movable terminal; an operation member; and a cover fixed to the insulating main body. When the operation member is pushed horizontally backward, the drive member is driven by the operation member to move downward and press the central portion of the movable terminal. The movable terminal that contacts the first fixed terminal contacts the second fixed terminal when the drive member is pressed downward. The first and second fixed terminals are electrically connected to each other by a movable terminal.
Japanese Patent Laid-Open No. 2003-257277

  In the process of performing the operation of pushing the operating member horizontally, the operating member is further easily pushed after the movable terminal contacts the second fixed terminal. At this time, the movable terminal of the push-on switch posted in Patent Document 1 receives a pressing force generated by the entire drive unit. Thereby, since a movable terminal is always pressed, it becomes easy to break.

  Accordingly, an object of the present invention is to provide a push-on switch in which the movable terminal is not easily damaged in view of the above-described problems of the prior art.

  The push-on switch of the present invention includes an insulating body including a bottom wall, a front wall in which a first opening is formed, and a storage hole, and first and second fixed terminals exposed in the storage hole of the insulating body. And a movable terminal accommodated in the accommodation hole of the insulating body, a drive member disposed on the movable terminal, and an operation member movably accommodated in the accommodation hole. The first and second fixed terminals are provided with a first contact and a second contact, respectively. The movable terminal includes a side portion that contacts the first contact of the first fixed terminal, and a central portion that is located on the second contact of the second fixed terminal and can contact the second contact. The driving member includes a contact portion and a slot capable of pressing the movable terminal. The contact portion of the driving member is formed in an elastic arm shape by the slot.

  Compared with the prior art, the present invention has the following effects. When the operation member of the push-on switch of the present invention is further pushed after reaching a predetermined position, the drive member rises, and the contact portion installed in the shape of an elastic arm protrudes downward away from the slot and becomes a movable terminal. Abut. In this process, the pressure applied to the movable terminal is generated only from the contact portion. Compared to the fact that the pressure applied by the movable terminal shown in the prior art is generated by the entire drive member, the pressure applied by the movable terminal of the present invention is greatly reduced. Therefore, the movable terminal is not easily damaged.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 to 4, the push-on switch 100 includes an insulating main body 10 in which a storage hole 15 is formed, a fixed terminal 20, a dome-shaped movable terminal 30, a drive member 40, and a storage hole 15. An operating member 50 that is movably housed in the housing and a cover 60 are provided.

  1 and 2, the insulating main body 10 includes a bottom wall 11, a front wall 12, a rear wall 13 facing the front wall 12, and a pair of side walls 14. The storage hole 15 is surrounded by the bottom wall 11, the front wall 12, the rear wall 13, and a pair of side walls 14. First and second openings 16 and 17 are formed in the front wall 12 and the rear wall 13, respectively, and a plurality of convex-shaped pieces 18 are provided. The front wall 12 is provided with a protrusion 121.

  The fixed terminal 20 includes a first fixed terminal 21 and a second fixed terminal 22. The first fixed terminal 21 has a pair of first contacts 211 and a pair of first solder connection portions 212. The second fixed terminal 22 has one second contact 221 and a pair of second solder connection portions 222.

  The dome-shaped movable terminal 30 includes a central portion 31 and side portions 32.

  The driving member 40 includes a main body portion 42, an engaging portion 41 extending downward from the front end of the main body portion 42 to form an engaging groove 411, and an abutting portion inclined upward from the rear end of the main body portion 42. 43. A front surface of the contact portion 43 is a contact surface 431. The main body portion 42 includes a contact portion 421 protruding downward, and a substantially U-shaped slot 423 formed between the contact portion 421 and the main body portion 42. The contact portion 421 is formed like an elastic arm by the slot 423. In another embodiment, the contact portion 421 is formed to be bent downward in a V shape from the front end of the elastic arm.

  The operation member 50 includes an operation part 50 provided at the front end, a pair of support parts 53 provided at the rear end, and a pressing part 52 provided between the pair of support parts 53. The pressing portion 52 is provided with an inclined surface 54.

  The cover 6 is provided with a top plate 61 and a plurality of engagement pieces 62 that protrude downward from the top plate 61. An engagement hole 63 is formed in each engagement piece 62.

  As shown in FIGS. 1 to 4, when the push-on switch 100 is attached, first, the fixed terminal 20 is embedded in the bottom wall 11 of the insulating main body 10. The first and second contacts 211 and 221 of the first and second fixed terminals 21 and 22 are exposed to the housing hole 15, and the first and second solder connection portions 212 and 222 are led out from the insulating body 10. . The second contact 221 is disposed between the pair of first contacts 211. The movable terminal 30 is housed in the housing hole 15 of the insulating main body 10. The side portion 32 of the movable terminal 30 contacts the first contact 211 of the first fixed terminal 21, but the center portion 31 is located above the second contact 221 of the second fixed terminal 22 and contacts the second contact 221. do not do.

  Next, the drive member 40 is disposed on the movable terminal 30. The engagement groove 411 of the drive member 40 is engaged with the protrusion 121 of the insulating main body 10. The operation member 50 is disposed on the drive member 40. The operation portion 51 of the operation member 50 extends outward from the first opening 16 of the insulating main body 10. The inclined surface 54 of the pressing portion 52 of the operating member 50 contacts the contact surface 431 of the driving member 40. Finally, the cover 60 is attached to the insulating main body 10. The top plate 61 of the cover 60 covers the insulating main body 10, the engaging hole 63 of the engaging portion 62 engages with the convex piece 18 of the insulating main body 10, and the extending piece 64 is the insulating main body. 10 is fitted into the second opening 17. Thereby, the cover 60 is fixed to the insulating main body 10.

  As shown in FIG. 4, when the operation portion 51 of the operation member 50 is pushed horizontally to the rear side, the inclined surface 54 of the operation member 50 contacts the contact surface 431 of the drive member 40. The main body 42 of 40 is bent downward with the engaging portion 41 as an axis. When the operation member 50 reaches a predetermined position, the contact portion 421 of the drive member 40 presses the central portion 31 of the movable terminal 30. The movable terminal 30 whose side portion 32 is in contact with the first contact 211 of the first fixed terminal 21 contacts the second contact 221 of the second fixed terminal 22 after the central portion 31 is pressed by the drive member 40. . Thus, the first and second fixed terminals 21 and 22 are electrically connected by the movable terminal 30.

  When the operation member 50 is further pushed in after the central portion 31 of the movable terminal 30 contacts the second contact 221 of the second fixed terminal 22, the drive member 40 slightly rises and is installed in an elastic arm shape. The contact portion 421 moves away from the slot 423 and protrudes downward to contact the movable terminal 30. In this process, the pressure applied to the movable terminal 30 is generated only from the contact portion 421. The pressure applied by the movable terminal shown in the prior art is generated by the entire drive member 40. In comparison, the pressure applied by the movable terminal 30 of the present invention is greatly reduced. Therefore, the movable terminal 30 is not easily damaged.

  When the operation force applied to the operation member 50 is removed, the movable terminal 30 returns to the original upward convex shape, and the first and second contacts 211 and 221 of the first and second terminals 21 and 22 are electrically independent. While returning to the state, the drive member 40 and the operation member 50 return to the original state.

  As mentioned above, although this invention was demonstrated in detail with reference to the best embodiment, embodiment is only an illustration to the last and is not limited to these. Further, any of the above-described explanations, details corrections or changes that can be made based on the present invention belong to the scope of claims for registration of the utility model of the present invention.

It is a disassembled perspective view of the push-on switch of the present invention. It is another disassembled perspective view of the push-on switch shown in FIG. It is a perspective view of the combination of the push-on switch shown in FIG. FIG. 4 is a sectional view taken along line IV-IV of the push-on switch shown in FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Push-on switch 10 Insulating main body 11 Bottom wall 12 Front wall 121 Projection part 13 Rear wall 14 Side wall 15 Storage hole 16 1st opening part 17 2nd opening part 18 Convex part piece 20 Fixed terminal 21 1st fixed terminal 211 1st 1 contact point 212 1st solder connection part 22 2nd fixed terminal 221 2nd contact point 222 2nd 2nd solder connection part 30 movable terminal 31 center part 32 side part 40 drive member 41 engagement part 411 engagement groove 42 body part 421 contact Part 423 slot 43 abutting part 431 abutting surface 50 operating member 51 operating part 52 pressing part 53 supporting part 54 inclined surface 60 cover 61 top plate 62 engaging piece 63 engaging hole 64 extending piece

Claims (8)

An insulating body including a bottom wall, a front wall in which the first opening is formed, and a storage hole;
First and second fixed terminals that are exposed in the housing holes of the insulating body and are provided with a first contact and a second contact, respectively;
A central portion that is accommodated in the accommodation hole of the insulating main body and is located on the side portion that contacts the first contact of the first fixed terminal and the second contact of the second fixed terminal, and that can contact the second contact. A movable terminal having
A drive member disposed on the movable terminal;
An operation member that is movably stored in the storage hole and protrudes from the first opening;
And the drive member includes a contact portion and a slot capable of pressing the movable terminal, and the contact portion is formed in an elastic arm shape by the slot.   The push-on switch according to claim 1, wherein the slot is formed in a substantially U shape on an outer periphery of the contact portion.   The contact portion of the drive member protrudes downward, the drive member is provided with a contact portion that is inclined upward and has a contact surface, and the operation member contacts the contact surface of the contact portion. The push-on switch according to claim 1, further comprising a pressing portion including an inclined surface.   The driving member is provided with an engaging portion where an engaging groove is formed, and a front wall of the insulating body is provided with a protruding portion that engages with the engaging groove of the driving member. The push-on switch according to claim 1.   The push-on switch according to claim 1, wherein the push-on switch includes a cover that covers the insulating main body.   The cover is provided with a plurality of engagement pieces in which engagement holes are formed, and the insulating main body is provided with a plurality of convex portions that engage with the engagement holes of the cover. The push-on switch according to claim 5.   The insulating main body has a rear wall formed with a second opening facing the front wall, and the cover is provided with an extending piece fitted into the second opening. The push-on switch according to claim 5.   2. The push-on switch according to claim 1, wherein the first and second fixed terminals are respectively provided with first and second solder connection portions led out from the insulating main body.

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