JPH081537Y2 - Slide switch - Google Patents

Description

[Detailed description of the device] [The purpose of the device]

(Industrial field of application) The present invention relates to a slide switch used for switching a power source of, for example, an electric trunk opener or an electric fuel lid opener. (Prior Art) Conventionally, a slide switch shown in FIG. 3 has been known as a slide switch for switching a power source of an electric trunk opener or an electric fuel lid opener. The illustrated slide switch 100 includes a base 102 attached to a case 101, a first fixed contact 103, a second fixed contact 103, and a third fixed contact 103.
4, 105 are arranged separately in the lateral direction,
A contactor 107 is attached to a slider 106 that slides laterally in the figure with respect to the case 101. Since a return spring 108 for returning the slider is mounted between the slider 106 and the case 101, the slider 106 is biased to the right side in the figure by the return spring 108. The contactor 107 includes a contact protrusion 107 for contacting a fixed contact.
Each of a and 107b is provided, and a knob 109 is fixed to the slider 106. Since the contact protrusions 107a and 107b provided on the contactor 107 are in contact with the first and second fixed contacts 103 and 104, respectively, when the knob 109 is returned to the position a shown in FIG. The fixed contact 103 of is connected to the second fixed contact 104. When the knob 109 is manually moved from the position a to the position b, the slider 106 slides in the right direction in the drawing against the return spring 108, so that the one contact protrusion 107a provided on the contactor 107 is moved to the first position. Contacting the second fixed contact 104 away from the fixed contact 103 and the other contact protrusion 107b provided on the contactor 107 separates from the second fixed contact 104 and comes into contact with the third fixed contact 105. Fixed contact 104 is connected to the third fixed contact 105. When the knob 109 is released in this state, the return spring 1
Since the slider 106 returns to the left side in the figure due to the elastic restoring force of 08, one of the contact protrusions 107a provided on the contactor 107 separates from the second fixed contact 104 and comes into contact with the first fixed contact 103, and the contactor 107 Of the other contact protrusion 107b
Is separated from the third fixed contact 105 and comes into contact with the second fixed contact 104 to recover. (Problems to be Solved by the Invention) However, in the above-mentioned conventional slider switch 100, the contactor 107 attached to the slider 106 has a structure that slides substantially linearly in the lateral direction in FIG. Both contact protrusions 107a, 1 provided on the contactor 107
The arc time when 07b separates from each fixed contact 103, 104, 105 becomes long, which causes the contactor 107 and each fixed contact 103, 104, 105 to be easily damaged by the arc. However, there is a problem in that the quality may be deteriorated as a result of the occurrence of the problem, and it has been a problem to solve such a problem. (Object of the Invention) Therefore, the present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to provide a slide switch capable of maintaining high quality by shortening the arc time. The structure is very elaborate.

[Constitution of device]

(Means for Solving the Problem) In the slide switch according to the present invention, a case, a base attached to the case, and a contact pressure holding means accommodating portion formed in a cylindrical shape are located closer to one side than the center of the base. A slider that is movable in the case, a return spring that biases the slider into the case, a support shaft that is held on the tip side of the contact pressure holding means accommodating portion, and one end that is locked to the support shaft. , The other end of which is held by a support shaft and is urged by the contact pressure holding means so that the slider can rotate about the slider. At the same time, a contactor that can move in the case and a support projection that has a chevron cross section that is in sliding contact with the contactor and that is always electrically connected are formed.
Third fixed contacts, second fixed contacts, first fixed contacts, second fixed contacts, third fixed contacts, second fixed contacts, and third fixed contacts that are electrically connected to or separated from the contactor. It is characterized in that the fifth and sixth fixed contacts are provided. (Operation of the Invention) In the slide switch according to the present invention, the first,
Since the support protrusion formed on the second fixed contact has a mountain-shaped cross section and the contactor is supported by the support shaft, the rotation start position of the seesaw-type contactor is constant. Further, since the contact pressure holding means accommodating portion is provided at a position closer to one side from the center of the base, the contactor is stably connected to each fixed contact while the slider is biased by the return spring. It (Embodiment) FIGS. 1 and 2 show an embodiment of a slide switch according to the present invention. The slide switch 1 shown is an upper case 2a.
And the lower case attached to this upper case 2a
A case 2 is formed from 2b, and in this case 2, a base 3 is fixed between the upper case 2a and the lower case 2b. On the left side in FIG. 2, a third fixed contact terminal 4, a first fixed contact terminal 5, and a fourth fixed contact terminal 6 are spaced apart from each other in the lateral direction in FIG. 1 on the base 3. The fifth fixed contact terminal 7, the second fixed contact terminal 8, and the sixth fixed contact terminal 9 are provided in the lateral direction in FIG. 1 on the right side in FIG. It is installed separately. The first, second, third, fourth, fifth, and sixth fixed contact terminals 5, 8, 4, 6, 7, 9 slightly project from the upper surface of the base 3 and have a substantially rectangular cross section. The first,
The second, third, fourth, fifth and sixth fixed contacts 5a, 8a, 4a,
6a, 7a, 9a are provided respectively. First fixed contact
5a and the second fixed contact 8a are arranged in the center of the base 3. The first fixed contact terminal 5 located at the center of the fixed contact terminals 4, 5, 6 has a support protrusion slightly protruding from the first fixed contact 5a toward the upper side in FIG. 5b is formed, and the second fixed contact terminal 8 located at the center among the fixed contact terminals 7, 8 and 9 is slightly moved upward from the second fixed contact 8a in FIG. A supporting protrusion 8b is formed so as to protrude in the direction.
Both supporting protrusions 5b and 8b are formed in a mountain-shaped cross section, as is clear from FIG. Further, in the upper case 2a, a square hole 2c having a laterally elongated shape in FIG. 1 is provided at approximately the center of the top wall 2a1, and a return spring locking is provided below the top wall 2a1. A spring locking portion 2d is provided for the. A knob mounting portion 10a included in a slider 10 described later is inserted into the square hole 2c, and the spring locking portion 2
A return spring 15 described later is housed in d. Also, the slider 10 is housed in the upper case 2a. The slider 10 is housed slidably to the left or right in FIG. 1 with respect to the upper case 2a, and a knob mounting portion 10a formed near the upper end of the slider 10 has a square hole in the upper case 2a. The knob 11 is attached to the knob attachment portion 10a outside the upper case 2a. The slider 10 is provided with a spring accommodating groove 10f for accommodating the return spring, and the spring accommodating groove 10f is provided downward from a ceiling wall 10c which is provided on the upper side in FIG. 1 of the slider body 10b having a substantially rectangular shape. It is cut in a bottomed manner toward the side wall, and is cut away from the left side wall 10d to the right side wall 10e in FIG. 1, and the return spring 15 is housed in the spring housing groove 10f. . Further, the slider 10 is provided with a contactor storage portion 10h formed in an opening shape from the bottom wall 10g on the lower side in FIG. 1 of the slider body 10b toward the ceiling wall 10c. A contact pressure holding means storage section 10i is provided. The contact pressure holding means storage portion 10i is located at the central position C of the base 3.
From the lower side in the figure toward the ceiling wall 10c, a cylindrical shape is formed at a position D which is closer to the right side in FIG. 1 by a distance L1. A torsion coil spring 14, which is a contact pressure holding means, is housed in the contact pressure holding means housing portion 10i. One end of the torsion coil spring 14 is locked to the slider body 10b and the other end thereof is a support shaft described later. Locked at 12. Since the contact pressure holding means accommodating portion 10i is provided at a position closer to one side from the center of the slider body 10b, which is the side closer to the first fixed contact 5a and the fourth fixed contact 6a, the slider 10 will be described later. The contactor 13, which will be described later, makes stable contact with the support protrusion 5b provided on the first fixed contact 5a and the fourth fixed contact 6a while being biased by the return spring 15. Further, since the contact pressure holding means storing portion 10i is provided with supporting shaft inserting portions 10j and 10j which are opened downward on both sides near the lower end in FIG. 2, the supporting shaft inserting portions 10j and 10j are rounded. A rod-shaped support shaft 12 is inserted. Support shaft insertion part
Since the lower portions of 10j and 10j are open, the support shaft 12 is biased downward by the torsion coil spring 14. The contact pressure holding means accommodating portion 10i is provided at two points in a point symmetry centered on the spring accommodating groove 10f, to the left and to the right in FIG. The contactor 13 is formed by pressing a thin-walled conductive plate into a substantially box shape with the upper side in FIG. 1 having an opening shape, and the lower end is a flat contact surface for fixed contact.
and the side walls 13 on both sides of this contact surface 13a
The above-mentioned support shaft 12 is fitted into the upper side of the center of b and 13b. The support shaft 12 attached to the contactor 13 has one end in the contact pressure holding means housing portion 10i of the slider 10 at one end of the slider body 1
Since it is locked to the other end of the torsion coil spring 14 that is locked to 0b, the contactor 13 is a contactor storage portion of the slider 10.
Within 10 h, it can be rotated while being urged downward by the elastic repulsive force of the torsion coil spring 14. The contactor 13 has the contact surface 13a of the contactor 13 with the slider 10 being biased rightward in FIG.
And the third fixed contact 6a in contact with each other. The slide switch 1 having such a structure is a knob
In the return state in which the position 11 is at the position A, the support shaft 12 inserted into the slider 10, that is, the contact pressure holding means accommodating portion 10i of the slider 10 has the first support protrusion 5b of the first fixed contact 5a.
Since it is arranged on the right side in the figure, the contactor 13 is inclined to the right side, and the contact surface 13a of the contactor 13 is the first
The first fixed contact terminal 5 and the fourth fixed contact terminal 6 are electrically connected by coming into contact with the support protrusion 5b of the fixed contact 5a and the fourth fixed contact 6a. From this return state, the slider 11 is slid to the left in FIG. 1 against the elastic repulsive force of the return spring 15 by pushing the knob 11 from the position A to the position B by hand. The support shaft 12 inserted, that is, the contact pressure holding means accommodating portion 10i of the slider 10 is the first fixed contact 5
At the same time that the support protrusion 5b of a is displaced to the left side in FIG. 1, the contactor 13 is supported by the support protrusion 5 of the first fixed contact 5a, and counterclockwise in FIG. The contact surface 13a of the contactor 13 is rotated in a seesaw manner.
Separates from the fourth fixed contact 6a and comes into contact with the third fixed contact 4a while slidingly contacting the support protrusion 5b of the first fixed contact 5a.
The fixed contact terminal 5 and the third fixed contact terminal 4 are electrically connected. When the knob 11 is released in this state, the slider 10 is slid to the right side in FIG. 1 by the elastic restoring force of the return spring 15, so that the support shaft 12, that is, the slider 10 has a contact. The pressure holding means housing portion 10i is the first fixed contact 5
The support protrusion 5b provided in a is displaced to the right side in FIG. 1, and the contactor 13 is supported by the support protrusion 5b of the first fixed contact 52 while the seesaw type in the clockwise direction in FIG. Due to the return rotation, the contact surface 13a of the contactor 13 separates from the third fixed contact 4a and comes into contact with the fourth fixed contact 6a while slidingly contacting the support protrusion 5b of the first fixed contact 5a to make the first fixed contact. The contact terminal 5 and the fourth fixed contact terminal 6 are connected and restored. The support protrusion 5b which the contactor 10 has on the first fixed contact 5a
When it is rotated in a seesaw type while being supported by the
Since the contactor 10 is supported by the support shaft 12, the rotation start position of the contactor 10 is constant. Further, the contact pressure holding means housing portion 10 formed on the slider 10
Since i is provided at a position closer to one side from the center of the slider 13, the contactor 10 is stably connected to the fourth fixed contact 6a while the slider 13 is biased by the return spring 15. It will be one. Further, the contact surface 13a of the contactor 13 has the fourth fixed contact 6a.
Alternatively, the timing of separating from the third fixed contact 4a is performed in a state of being biased by the torsion coil spring 14, so that it is faster than that without the torsion coil spring 14.

[Effect of device]

As described above, since the slide switch according to the present invention has the above-described structure, the supporting protrusions formed on the first and second fixed contacts have a mountain-shaped cross section, and the contactor is supported by the supporting shaft. Therefore, the rotation start position of the contactor rotated in a seesaw manner becomes constant. Further, since the contact pressure holding means accommodating portion is provided at a position closer to one side from the center of the base, the contactor is stably connected to each fixed contact while the slider is biased by the return spring. Therefore, it is possible to shorten the arc time when the contactor separates from the fixed contact and prevent damage due to the arc, thereby achieving an excellent effect of maintaining high quality.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of an embodiment of a slide switch according to the present invention, FIG. 2 is a vertical sectional front view of the slide switch shown in FIG. 1, and FIG. 3 is a vertical sectional side view of a conventional slide switch. . 1 …… Slide switch 2 …… Case 3 …… Base 4a …… Third fixed contact 5a …… First fixed contact 5b …… Supporting protrusion 6a …… Fourth fixed contact 7a …… Fifth fixed contact 8a …… Second fixed contact 8b …… Supporting protrusion 9a …… Sixth fixed contact 10 …… Slider 10i …… Contact pressure holding means storage section 12 …… Support shaft 13 …… Contactor 14 …… (holding contact pressure) Means) Torsion coil spring 15 ... Return spring

Continuation of the front page (72) Fumizo Koiso, 1760 Higashimatano-cho, Totsuka-ku, Yokohama, Kanagawa Prefecture Automotive Electric Industry Co., Ltd. (56) References Japanese Unexamined Patent Publication No. 52-54983 (JP, A) Actual development 57-69128 (JP, U) Actual development 60-174038 (JP, U) Actual publication 42-8041 (JP, Y1)

Claims (1)

[Scope of utility model registration request] 1. A case, a base attached to the case, and a contact pressure holding means accommodating portion formed in a cylindrical shape are provided at a position closer to one side than the center of the base, and are movable in the case. A slider, a return spring for urging the slider into the case, a support shaft held on the tip side of the contact pressure holding means accommodating portion, one end locked to the support shaft, and the other end contacted by the contact shaft. The contact pressure holding means locked to the base end side of the pressure holding means accommodating portion, and the slider, which is held by the support shaft and is rotatable by the slider while being biased by the contact pressure holding means. A contactor movable in the case, and a first and second fixed contact arranged in the center of the base, in which a supporting protrusion having a chevron cross section is formed, which is in sliding contact with the contactor and is always electrically connected. , The first and second solid Are spaced apart on opposite sides of the contact, the third, fourth, fifth, slide switch, characterized in that it comprises a fixed contact of a sixth electrically connecting or away from the said contactor.