JP2006196241A - Switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a switch which improves reliability in contact of a movable contact and a fixed contact at a surely clean face, by returning the movable contact to a portion cleaned by its sliding, after contacting the movable contact the fixed contact and sliding the movable contact. <P>SOLUTION: The switch consists of: a housing; the fixed contact attached in the housing fixed; the movable contact attached in the housing to contact and separate from the fixed contact; an operation strip attached in the housing to make the movable contact and separate from the fixed contact; and a means of self cleaning which keeps a contact state, by making the movable contact slide in a reverse direction, after bringing the movable contact into the fixed contact and sliding, in the case of bringing the movable contact into the fixed contact by the operating strip. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a switch using a contact that slides on a sliding contact or a touch contact.

  Conventionally, in order to always obtain a good contact surface by cleaning the surface of the fixed contact with the movable contact, a switch configured to slide on the surface of the fixed contact when the movable contact is pressed is considered. .

However, since the movable contact slides on the surface of the fixed contact in the switch configured in this way, if dust adheres to the fixed contact, the dust on the fixed contact is moved by the sliding of the movable contact. However, there is a possibility that a part of the contact may enter between the fixed contact and the movable contact, which cannot be surely cleaned, and the contact reliability is not sufficient.
JP-A-11-297147

  In view of the above-described drawbacks of the present invention, the movable contact comes into contact with the fixed contact, returns the movable contact to the site that has been slid, cleaned, and the movable contact and the fixed contact on a clean surface. An object of the present invention is to provide a switch capable of improving the contact reliability with which a contact is made.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.

  In order to achieve the above object, the present invention provides a housing, a fixed contact fixedly attached to the housing, a movable contact attached to the housing so as to be detachable from the fixed contact, and the movable contact. When the movable contact is brought into contact with the fixed contact by operating the operation piece attached to the housing and operating the operation piece so that the fixed contact can be contacted / separated, the movable contact contacts the fixed contact and slides. After that, a switch is constituted by self-cleaning means that can slide in the reverse direction and maintain the contact state.

  As will be apparent from the following description, the present invention has the following effects.

(1) When the movable contact is brought into contact with the fixed contact by operating the operation piece, self-cleaning is possible in which the movable contact slides in contact with the fixed contact and then slides in the opposite direction to maintain the contact state. Because the self-cleaning means is used, the movable contact slides while contacting the fixed contact when the fixed contact and the movable contact are in contact, cleans the fixed contact, and then slides in the opposite direction. The movable contact can be positioned at the cleaned site.
Therefore, dust entering between the movable contact and the fixed contact can be reliably prevented, and a clean surface can be contacted, thereby improving reliability.

(2) According to the above (1), since the movable contact is brought into contact with the fixed contact and slid and then slid in the opposite direction, the movable contact can be reliably brought into contact with the cleaned surface.
Therefore, it is possible to reliably connect and to easily set the sliding movement of the movable contact.

(3) Claims 2 and 3 can provide the same effects as in the above (1) and (2), and can be provided with self-cleaning means without increasing the number of parts, which effectively increases costs. Can be blocked.

  Hereinafter, the present invention will be described in detail with reference to the best mode for carrying out the invention shown in the drawings.

  In the first preferred embodiment for carrying out the present invention shown in FIGS. 1 to 7, reference numeral 1 denotes a switch according to the present invention. The switch 1 includes a housing 2 and a fixed contact fixedly attached to the housing 2. 3, a movable portion 4 having a substantially chevron-shaped movable portion attached to the housing 2 so as to be able to contact with and separate from the fixed contact 3, and the housing 2 so that the movable contact 4 can be contacted and separated from the fixed contact 3. In the case where the movable contact 4 is brought into contact with the fixed contact 3 by the ON / OFF operation of the installed operation piece 5 and the operation piece 5, the movable contact 4 contacts the fixed contact 3 and slides. The self-cleaning means 6 is configured to slide in the opposite direction and maintain the contact state.

  The housing 2 has a plurality of pairs, and in the form for carrying out the present invention, four pairs, a base plate 7 to which the fixed contact 3 and the movable contact 4 are attached, and a support integrally formed on the upper surface of the base plate 7. The operation pieces insertion holes 9, 9, 9, 9 are formed so as to cover the bases 8, 8, 8, 8 and the outer peripheral portion excluding the bottom surface of the base plate 7, and the operation pieces 5 are slidably inserted on the upper surface. The cover body 10 is made up of.

  The operation piece 5 has an operation piece main body 11 that slides on the support base 8 of the base plate 7 and the upper part of the movable contact 4, and the operation piece main body 11 passes through the operation piece insertion hole 9 on the upper surface. The operation lever 12 protrudes upward, and the pressing piece 13 protrudes downward in a mountain shape on the bottom surface of the portion corresponding to the movable contact 4 of the operation piece main body 11.

  The self-cleaning means 6 keeps the contact portion 4a of the movable contact 4 in contact with the fixed contact 3, and the contact portion 14 of the movable contact 4 with the pressing piece 13 of the operation piece 5 is higher on the contact start portion 15 side. It is formed in a chevron shape so that the end portion 16 side is lowered.

In the switch 1 having the above-described configuration, the operating piece 5 positioned in the OFF state is slid and the operating lever 12 is slid to bring the pressing piece 13 into contact with the contact portion 14 of the movable contact 4 as shown in FIG. The contact portion 4a of the movable contact 4 is brought into contact with the fixed contact 3, and the contact portion 14 is further pressed by the pressing piece 13 as shown in FIG. Move the slide.
When the operation lever 12 of the operation piece 5 is moved to the movement end portion, the pressing piece 13 is positioned at the contact end portion 16 at a lower part of the contact portion 14 as shown in FIG. While maintaining the state in contact with the fixed contact 3, it slides in the opposite direction (return direction).

That is, after the contact portion 4a of the movable contact 4 comes into contact with the fixed contact 3 and slides in the cleaning direction, the cleaned fixed contact 3 portion and the contact portion 4a of the movable contact 4 come into contact with each other. The contact can be reliably conducted, and the contact reliability can be improved.
[Different forms for carrying out the invention]

  Next, different modes for carrying out the present invention shown in FIGS. 8 to 49 will be described. In the description of these different modes for carrying out the present invention, the same components as those in the best mode for carrying out the present invention are designated by the same reference numerals and redundant description is omitted. To do.

  The second embodiment for carrying out the present invention shown in FIGS. 8 to 13 is mainly different from the best first embodiment for carrying out the present invention in that the cover body 10A of the housing 2A is pivotally supported. A switch constructed using such operation pieces 5A, 5A, 5A, 5A in that the operation pieces 5A, 5A, 5A, 5A, which are pivotally attached to the pins 17 and are operated in the vertical direction on the front surface, are used. Even if it is 1A, the same effect as the best first embodiment for carrying out the present invention can be obtained.

  The third embodiment for carrying out the present invention shown in FIGS. 14 to 19 is mainly different from the best first embodiment for carrying out the present invention from the front surface of the cover body 10B of the housing 2B. Even in the case of the switch 1B configured using such operation pieces 5B, 5B, 5B, and 5B, the book 1 is provided in that the operation pieces 5B, 5B, 5B, and 5B including the return spring 18 that is operated by pressing are used. The same effects as the first preferred embodiment for carrying out the invention can be obtained.

  The fourth embodiment for carrying out the present invention shown in FIGS. 20 to 25 is mainly different from the best first embodiment for carrying out the present invention in that the contact portion 14 is formed in a mountain shape. Self using a movable contact 4A and a recess 19 that slides in the opposite direction in a state where the contact portion 4a of the movable contact 4A is in contact with the fixed contact 3 at a downstream side of the lower end portion 13a of the pressing piece 13 In the point that the cleaning means 6A is used, even with the switch 1C configured by using such a self-cleaning means 6A, the same operational effects as those of the best mode for carrying out the present invention can be obtained.

  The fifth embodiment for carrying out the present invention shown in FIGS. 26 to 31 is mainly different from the best first embodiment for carrying out the present invention in that the engaging recess 20 in the ON and OFF states. , 21 is used so that the engaging portion 23 of the click spring 22 engages, and the operation piece 5C is set so that it can be overstroked. In the point of using the self-cleaning means 6B that automatically returns to the original amount corresponding to the overstroke when the operation lever 12 of the piece 5C is released, even in the switch 1D configured using such a self-cleaning means 6B, the present invention is described. The same effects as those of the best first embodiment for carrying out the above can be obtained.

  The sixth embodiment for carrying out the present invention shown in FIGS. 32 to 37 is mainly different from the fifth embodiment for carrying out the present invention in that the end of the operation piece insertion hole 9 of the cover body 10C. The operation piece 5C can be overstroked at the portion, and the self-cleaning means 6C integrally formed with the elastic piece 24 that automatically returns the operation piece 5C when the operation piece 5C is released is used. Even with the switch 1E configured using the self-cleaning means 6C, the same effects as those of the fifth embodiment for carrying out the present invention can be obtained.

  The seventh embodiment for carrying out the present invention shown in FIGS. 38 to 43 is mainly different from the sixth embodiment for carrying out the present invention in that the operation lever 12 of the operation piece 5C is overstroked. The self-cleaning means 6D is formed by using the self-cleaning means 6D integrally formed with the elastic piece 25 that automatically returns to the original amount corresponding to the overstroke when the operation lever 12 is released. Even with the switch 1F, the same effect as that of the sixth embodiment for carrying out the present invention can be obtained.

  44 to 49, the eighth embodiment for carrying out the present invention differs from the sixth embodiment for carrying out the present invention mainly in the end of the operation piece main body 11A of the operation piece 5C. In this point, the self-cleaning means 6E integrally formed with the elastic protrusion 26 which automatically returns to the original amount when the operation lever 12 of the operation piece 5C is released is released. Even with the switch 1G configured using the self-cleaning means 6E, the same operational effects as those of the sixth embodiment for carrying out the present invention can be obtained.

  The present invention is utilized in the industry for manufacturing switches.

1 is a partially broken perspective view of a best first embodiment for carrying out the present invention. FIG. FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. Explanatory drawing of the OFF state of the best 1st form for implementing this invention. Explanatory drawing of the state which the contact part of the movable contact of the best 1st form for implementing this invention contacted the fixed contact. Explanatory drawing of the state which the contact part of the movable contact of the best 1st form for implementing this invention slides on a fixed contact. Explanatory drawing of the ON state which returned to the place which the contact part of the movable contact of the best 1st form for implementing this invention cleaned. The operation | movement explanatory drawing of the contact part of the movable contact of the best 1st form for implementing this invention. The partially broken perspective view of the 2nd form for implementing this invention. FIG. 9 is a cross-sectional view taken along line 9-9 in FIG. Explanatory drawing of the OFF state of the 2nd form for implementing this invention. Explanatory drawing of the state which the contact part of the movable contact of the 2nd form for implementing this invention contacted the fixed contact. Explanatory drawing of the state which the contact part of the movable contact of the 2nd form for implementing this invention slides on a fixed contact. Explanatory drawing of the ON state which returned to the place which the contact part of the movable contact of the 2nd form for implementing this invention cleaned. The partially broken perspective view of the 3rd form for carrying out the present invention. FIG. 15 is a sectional view taken along line 15-15 in FIG. 14; Explanatory drawing of the OFF state of the 3rd form for implementing this invention. Explanatory drawing of the state which the contact part of the movable contact of the 3rd form for implementing this invention contacted the fixed contact. Explanatory drawing of the state which the contact part of the movable contact of the 3rd form for implementing this invention slides on a fixed contact. Explanatory drawing of the ON state which returned to the place which the contact part of the movable contact of the 3rd form for implementing this invention cleaned. The partially broken perspective view of the 4th form for carrying out the present invention. FIG. 21 is a sectional view taken along line 21-21 in FIG. 20; Explanatory drawing of the OFF state of the 4th form for implementing this invention. Explanatory drawing of the state which the contact part of the movable contact of the 4th form for implementing this invention contacted the fixed contact. Explanatory drawing of the state which the contact part of the movable contact of the 4th form for implementing this invention slides on a fixed contact. Explanatory drawing of the ON state which returned to the place which the contact part of the movable contact of the 4th form for implementing this invention cleaned. The partially broken perspective view of the 5th form for implementing this invention. FIG. 27 is a sectional view taken along line 27-27 in FIG. 26; Explanatory drawing of the OFF state of the 5th form for implementing this invention. Explanatory drawing of the state which the contact part of the movable contact of the 5th form for implementing this invention contacted the fixed contact. Explanatory drawing of the state which the contact part of the movable contact of the 5th form for implementing this invention slides on a fixed contact. Explanatory drawing of the ON state which returned to the place which the contact part of the movable contact of the 5th form for implementing this invention cleaned. The partially broken perspective view of the 6th form for implementing this invention. FIG. 33 is a sectional view taken along line 33-33 in FIG. 32; Explanatory drawing of the OFF state of the 6th form for implementing this invention. Explanatory drawing of the state which the contact part of the movable contact of the 6th form for implementing this invention contacted the fixed contact. Explanatory drawing of the state which the contact part of the movable contact of the 6th form for implementing this invention slides on a fixed contact. Explanatory drawing of the ON state which returned to the place which the contact part of the movable contact of the 6th form for implementing this invention cleaned. The partially broken perspective view of the 7th form for implementing this invention. FIG. 39 is a sectional view taken along line 39-39 in FIG. 38; Explanatory drawing of the OFF state of the 7th form for implementing this invention. Explanatory drawing of the state which the contact part of the movable contact of the 7th form for implementing this invention contacted the fixed contact. Explanatory drawing of the state which the contact part of the movable contact of the 7th form for implementing this invention slides on a fixed contact. Explanatory drawing of the ON state which returned to the place which the contact part of the movable contact of the 7th form for implementing this invention cleaned. The partially broken perspective view of the 8th form for implementing this invention. FIG. 45 is a sectional view taken along line 45-45 in FIG. 44. Explanatory drawing of the OFF state of the 8th form for implementing this invention. Explanatory drawing of the state which the contact part of the movable contact of the 8th form for implementing this invention contacted the fixed contact. Explanatory drawing of the state which the contact part of the movable contact of the 8th form for implementing this invention slides on a fixed contact. Explanatory drawing of the ON state which returned to the place which the contact part of the movable contact of the 8th form for implementing this invention cleaned.

Explanation of symbols

1, 1A, 1B, 1C, 1D, 1E, 1F, 1G: switch,
2, 2A, 2B: housing, 3: fixed contact,
4, 4A: movable contact, 5, 5A, 5B, 5C: operation piece,
6, 6A, 6B, 6C, 6D, 6E: self-cleaning means,
7: Base plate, 8: Support base,
9: Operation piece insertion hole, 10, 10A, 10B: Cover body,
11: Operation piece main body, 12: Operation lever,
13: Pressing pressure piece, 14: Contact part,
15: Contact initial part, 16: Contact end part,
17: Pivot pin, 18: Return spring,
19: recess, 20, 21: engagement recess,
22: Click spring, 23: Locking part,
24: elastic piece, 25: elastic piece,
26: Elastic protrusion.

Claims (3)

A housing, a fixed contact fixedly attached to the housing, a movable contact attached to the housing so as to be able to contact with and separate from the fixed contact, and the housing so that the movable contact can be contacted and separated from the fixed contact. When the movable contact is brought into contact with the fixed contact by operating the operation piece, and the movable contact is in contact with the fixed contact, the movable contact slides in contact with the fixed contact and then slides in the opposite direction. A switch comprising self-cleaning means capable of maintaining a state. A housing, a fixed contact fixedly attached to the housing, a movable contact attached to the housing so as to be able to contact with and separate from the fixed contact, and the housing so that the movable contact can be contacted and separated from the fixed contact. When the movable contact is brought into contact with the fixed contact by operating the operation piece, and the movable contact is in contact with the fixed contact, the movable contact slides in contact with the fixed contact and then slides in the opposite direction. A switch comprising: a self-cleaning means having a chevron-shaped shape in which a contact portion of the movable contact with the operation piece is lowered on the contact end portion side so that the state can be maintained. A switch comprising self-cleaning means for automatically moving the operation piece to a set position by elastic force when the operation piece is moved and released from the set position so as to have an overstroke.

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