JPH0619230U - Double switch device - Google Patents

Abstract

(57) [Summary] [Purpose] Arrangement of each contact so that it can be routed to an external terminal without difficulty, and the spacing between a pair of operating elements can be set to a prescribed value without complicated bending. By devising the device, it is possible to provide a dual switch device in which miniaturization is not hindered and cost is not increased even if all external terminals are provided on one outer wall surface on the short side of the housing. A common contact 4 made of a flat metal plate is arranged substantially at the center of the housing 1 in the longitudinal direction, one side of the common contact 4 faces a switching contact 5 and the other side faces a switching contact 6, and each sliding contact Operators 11 and 12 which are erected on the pendulum receivers 7 and 8.
Were biased toward the anti-common contact 4 side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a push-operated dual switch device in which operating elements, which are erected on a pair of slider receivers, are arranged substantially in parallel with each other with a predetermined distance therebetween, and these operating elements are selectively pushed to perform switching.

[0002]

[Prior art]

 This type of switch device is used, for example, as a detection switch, and generally the configuration shown in FIGS. 3 and 4 is widely adopted.

In these figures, a housing 1 formed by combining a lower case 2 and an upper case 3 has a substantially rectangular shape in a plan view, and one of the wall portions 2 a and 2 b on the long side of the lower case 2 is one wall portion. The common contact 4 is exposed inside 2a, and the pair of switching contacts 5 and 6 are exposed inside the other wall 2b so as to be spaced apart from each other, and the external terminals 4a and 5a of each contact 4, 5 and 6 are exposed. , 6a are projected from different locations on the outer surface of the wall 2a. That is, the extending portion of the common contact 4 is embedded in the wall portion 2a of the lower case 2, and the extending portions of the switching contacts 5, 6 are embedded in the wall portions 2c, 2d of the lower case 2 on the short side. By performing insert molding as described above, all three external terminals 4a to 6a are provided on one outer wall surface of the housing 1 on the long side. A pair of slider receivers 7 and 8 are incorporated in the housing 1 so as to be vertically movable, and a slider 9 fixed to one of the slider receivers 7 is connected to the common contact 4. The sliding contact is always slidable to and from the switching contact 5, and at the same time, the slider 10 fixed to the other slider receiver 8 is always slid to the common contact 4 to be able to be separated from the switching contact 6. Has become. An operator 11 is erected upward in the center of the slider receiver 7, and an operator 12 is erected upward in the center of the slider receiver 8. Both operating elements 11 and 12 extending substantially in parallel penetrate the pair of through holes 3a of the upper case 3 (however, one of the through holes is not shown) to project above the housing 1 and are not shown. It is inserted into a pair of detection holes of an external device. Therefore, the distance between the two operators 11 and 12 is often set according to the standardized pitch between the detection holes. A pair of return springs 13 (one of the return springs is not shown) for urging the slider receivers 7 and 8 in the upward direction are provided inside the housing 1.

In the conventional dual switch device configured as described above, the slider receivers 7 and 8 are pushed up by the respective return springs 13 when not operated, and the sliders 9 and 10 are respectively changed over to the switching contact points 5. , 6 are in contact with each other, the conduction between the switching contact 5 and the common contact 4 is ensured through the slider 9, and the conduction between the switching contact 6 and the common contact 4 is ensured through the slider 10. ing. Then, in this state, the operator 11 or 12 is selectively pushed downward against the elastic force of the return spring 13 and the slider receiver 7 or 8 is lowered by a predetermined stroke, and then the slider 9 or 10 is moved. Is separated from the switching contact 5 or 6 and is switched from on to off. Therefore, it is possible to determine that the operating element 11 has been pushed in by releasing conduction between the external terminals 4a and 5a. It is possible to determine that the operator 12 has been pushed in by releasing the conduction between the external terminals 4a and 6a.

[0005]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional dual switch device, all three external terminals 4a to 6a are provided on one outer wall surface on the long side of the housing 1, but this type of switch device is mounted. The layout of circuit patterns on printed wiring boards has become quite limited due to the improvement in packaging density. In recent years, all three external terminals have been projected onto one outer wall surface on the short side of the housing. There is an increasing demand for a dual switch device that has been installed.

Therefore, conventionally, as shown in FIG. 5, by extending the extended portions of the switching contacts 5 and 6 together within the wall portion 2b on the long side of the lower case 2, the three external terminals 4a to 6a are provided. Although it has been proposed that all of them project from the outer surface of the wall portion 2c on the short side, high reliability cannot be obtained unless the wall portion 2b is made quite thick, so a large switch device is required. There was a problem that it turned into.

In addition, as shown in FIG. 6, a common configuration in which a first protrusion 4b for the slider 9 and a second protrusion 4c for the slider 10 are provided by being bent into a substantially U-shape. The contact 4 is arranged in the center of the lower case 2, and the switching contacts 5 and 6 exposed inside the walls 2c and 2d on the short side are connected to the first protrusion 4b and the second protrusion 4c, respectively. Although a configuration in which they are opposed to each other is conceivable, in this configuration, the common contact 4 must be subjected to a complicated bending process that is dimensioned so that the distance between the pair of operators 11 and 12 becomes a predetermined value. , There was a problem that the cost was forced to increase significantly.

The reference numerals of the respective parts in FIGS. 5 and 6 correspond to those of FIGS. 3 and 4 described above.

The present invention has been made in view of the above problems of the prior art, and the object thereof is not to hinder the miniaturization even if all the external terminals are provided on one outer wall surface on the short side of the housing. It is to provide a double switch device without worrying about cost increase.

[0010]

[Means for Solving the Problems]

 The above-mentioned object of the present invention is to provide a casing having a substantially rectangular shape in plan view, a common contact exposed inside the casing, and a pair of switching contacts exposed at a position facing the common contact inside the casing. , A first slider which is always in sliding contact with the common contact and can be brought into contact with and separated from one of the switching contacts, and a second slider which is always in sliding contact with the common contact and can be brought into contact with and separated from the other switching contact. And a first slider holder that holds the first slider and can move up and down inside the housing, and a second slider that holds the second slider and can move up and down inside the housing. A second slider receiver, a first operator standing on the first slider receiver and protruding to the outside of the housing, and a second slider receiver standing on the second slider receiver. And a pair of return springs for urging the second operator, which protrudes outside the housing, and the first and second slider receivers in a rising direction. In a push-operated dual switch device for selectively switching the first and second operating elements arranged substantially parallel to each other to perform switching, the common is provided approximately at the center in the longitudinal direction of the housing. A metal flat plate is arranged as a contact, and the first operator is erected so as to be offset from the common contact to the side closer to the switching contact on the one side facing one side of the common contact, and at the same time from the common contact. Can also be achieved by vertically arranging the second operating element so as to be biased to the side closer to the other switching contact opposite to the other surface of the common contact.

[0011]

[Action]

 According to the above means, the extending portion of one switching contact is embedded in the wall portion on the short side of the housing, and the extending portion of the common contact and the other portion are formed on the pair of wall portions on the long side of the housing. By embedding the extended portion of the switching contact, it is possible to project all the external terminals of each contact on one outer wall surface on the short side of the housing, so that the wall portion of the housing is undesired. It does not need to be formed thick. Further, although the interval between the first and second slider receivers that are adjacent to each other via the metal flat plate that is the common contact is narrowed, each of the operators is from the center portion of the corresponding slider receiver to the anti-common contact side. Since it is erected at an offset position offset to one side, the gap between both operators can be set to a predetermined value by appropriately setting this offset amount.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. Here, FIG. 1 is a cross-sectional view of a dual switch device according to an embodiment, and FIG. 2 is an exploded perspective view of the switch device. Parts corresponding to those in FIGS. It is marked.

The dual switch device shown in FIGS. 1 and 2 has a casing 1 that is a combination of a lower case 2 and an upper case 3 and has a substantially rectangular shape in plan view, and a longitudinal dimension of the casing 1 inside the lower case 2. A common contact 4 made of a flat metal plate arranged in a substantially bisected position, and a switching contact arranged at a position facing one surface of the common contact 4, that is, inside one wall portion 2c on the short side of the lower case 2. 5, a switching contact 6 arranged at a position facing the other surface of the common contact 4, that is, inside the other wall portion 2d on the short side of the lower case 2, and both sides of the common contact 4 are vertically movable. A pair of slider receivers 7 and 8, sliders 9 and 10 fixed to the slider receivers 7 and 8, respectively, and the slider receivers 7 and 8 which are staggered from the central portion. Raise the operated operators 11 and 12 and the slider receivers 7 and 8 respectively. The external terminals 4a, 5a and 6a derived from the respective contact points 4, 5 and 6 are roughly configured by the return springs 13 and 14 which are biased in the direction. It is projected at a different place.

Here, the slider 9 fixed to the one slider receiver 7 is always in sliding contact with the common contact 4 and can be brought into contact with and separated from the switching contact 5, and the other slider receiver 8 is provided. The fixed slider 10 is always in sliding contact with the common contact 4 and can be brought into contact with or separated from the switching contact 6. Further, each of the operators 11 and 12 is erected at an offset position offset from the central portion of the corresponding slider receiver 7 or 8 toward the anti-common contact point 4 side, and is substantially parallel with a predetermined distance. These operators 11 and 12 extending to the above penetrate the through holes 3a and 3b of the upper case 3, respectively, project above the housing 1, and are inserted into a pair of detection holes of an external device (not shown). Furthermore, when the lower case 2 is molded, the extending portion of the one switching contact 5 is embedded in the wall portion 2c on the short side of the lower case 2 and the pair of wall portions 2a, 2b on the long side is formed. Insert molding is performed so that the extending portion of the other switching contact 6 and the extending portion of the common contact 4 are buried.

In the double switch device configured as described above, the slider receivers 7 and 8 are pushed up by the return springs 13 and 14, respectively, when not operated, and the sliders 9 and 10 are turned off. Since the switching contacts 5 and 6 are in contact with each other, conduction between the switching contact 5 and the common contact 4 is ensured via the slider 9, and the switching contact 6 and the common contact 4 are connected via the slider 10. Continuity is also secured. Then, in this state, when the operator 11 is pushed downward against the elastic force of the return spring 13 and the slider receiver 7 is lowered by a predetermined stroke, the slider 9 is separated from the switching contact 5 and is turned on. Since the switching off is performed, it is possible to determine that the operator 11 has been pushed in by releasing the conduction between the external terminals 4a and 5a. Similarly, when the operator 12 is pushed downward against the resilience of the return spring 14 and the slider receiver 8 is lowered by a predetermined stroke, the slider 10 is separated from the switching contact 6 and turned from ON to OFF. Since the switching to the switch is performed, it is possible to determine that the operator 12 has been pushed in by releasing the conduction between the external terminals 4a and 6a.

In this double switch device, the extending portion of one switching contact 5 is embedded in the wall portion 2c on the short side of the lower case 2, and the pair of walls on the long side of the lower case 2 are embedded. By embedding the extended portion of the other switching contact 6 and the extended portion of the common contact 4 in the portions 2a and 2b, respectively, the external terminals 4a to 6a of the respective contacts 4 to 6 are all provided on the short side of the housing 1. In response to the request to project on one outer wall surface on the side, and since there is no difficulty in routing the contacts 4 to 6, it is not necessary to form the wall portion of the housing 1 to be undesirably thick. Therefore, it is possible to meet the demand without increasing the size of the device or sacrificing the reliability.

Further, in this double switch device, the interval between the two slider receivers 7 and 8 which are adjacent to each other via the metal flat plate serving as the common contact 4 is narrow, but each of the operators 11 and 12 is Since it is erected at the offset position offset from the central portion of the corresponding slider receiver 7 or 8 to the side opposite to the common contact 4, by setting the offset amount appropriately, The interval of 12 can be easily set to a predetermined value. That is, the distance between the two operators 11 and 12 must be set according to the pitch between the two detection holes of the above-mentioned external device, so that the distance between the two slider receivers 7 and 8 must be set. In the case of the narrow embodiment, the standing position of each operator 11, 12 is appropriately offset to the side of the anti-common contact 4 to correct the interval between both operators 11, 12, and as a result, the common contact is obtained. It is not necessary to perform a complicated bending process on No. 4 and cost up can be avoided, and the longitudinal dimension of the housing 1 can be shortened, and miniaturization is promoted.

Furthermore, when the operating elements 11 and 12 are biased to the side closer to the corresponding switching contact 5 or 6 in this way, the pushing operation force is biased, so that the switching contacts 5 and 6 are respectively slidable. 9 and 10 can be easily slid, and as a result, even when the operators 11 and 12 are pushed in with a slight inclination, the switching operation timing does not vary so much, and the attendant effect that reliability is improved can be expected.

Note that the switching contacts 5 and 6 may be provided on the bottom of the housing 1 so that switching from off to on may be performed during operation.

[0020]

[Effect of device]

 As described above, a common contact made of a flat metal plate is arranged approximately in the center in the longitudinal direction of the housing, and the slider receivers are vertically movable on both sides of the common contact, and are installed upright on each slider receiver. According to the present invention in which the operating elements are biased toward the anti-common contact side, the respective contacts can be smoothly routed to the external terminals, so that it is not necessary to form the wall portion of the housing undesirably thick. Since the gap between both controls can be set to a predetermined value by setting the offset amount appropriately, it is not necessary to perform complicated bending processing on the common contact, and cost up can be avoided. It is possible to provide a double switch device in which the miniaturization is not hindered and the cost is not increased even if all of them are provided on one outer wall surface on the short side of the housing.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a dual switch device as an example.

FIG. 2 is an exploded perspective view of the switch device shown in FIG.

FIG. 3 is a plan view in which an upper case of a conventional general dual switch device is omitted.

4 is a cross-sectional view of the switch device shown in FIG.

FIG. 5 is a plan view in which an upper case of another conventional example is omitted.

FIG. 6 is a plan view in which an upper case of another conventional example is omitted.

[Explanation of symbols]

 1 case 2 lower case 2a, 2b, 2c, 2d wall part 3 upper case 4 common contact 4a external terminal 5,6 switching contact 5a, 6a external terminal 7,8 slider receiver 9,10 slider 11,12 Operators 13, 14 Return spring

Claims (1)

[Scope of utility model registration request] 1. A casing having a substantially rectangular shape in plan view, a common contact exposed inside the casing, a pair of switching contacts exposed at a position facing the common contact inside the casing, and the common. A first slider that is constantly in sliding contact with the contact and is capable of contacting and separating from one of the switching contacts; a second slider that is always in sliding contact with the common contact and is capable of contacting and separating from the other switching contact; A first slider holder that holds one slider and can move up and down inside the housing, and a second slider holder that holds the second slider and can move up and down inside the housing. A slider receiver, a first operator standing on the first slider receiver and protruding to the outside of the housing, and a housing standing on the second slider receiver. And a pair of return springs for urging the first and second slider receivers in the ascending directions, respectively, and substantially parallel to each other. In a push-operated dual switch device that selectively pushes the arranged first and second operating elements to perform switching, a metal flat plate is arranged as the common contact substantially at the center in the longitudinal direction of the housing, The first operating element is erected so as to be offset from one side of the common contact closer to one of the common contacts than the common contact, and the other side of the common contact is opposed to the common contact. A dual switch device in which the second operation element is erected so as to be biased to the side closer to the other switching contact.