JP3824045B2 - Switch and switch device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a switch and a switch device provided in large numbers on a common substrate, such as operation switches of an electronic musical instrument.
[0002]
[Prior art]
Conventionally, as a switch for operating an electronic musical instrument, a switch driven by a user pressing a movable member such as a push button or a keyboard is known. In such a switch, the conductive movable contact provided on the movable member by pressing makes contact between the pair of fixed contacts provided at an interval to conduct between the fixed contact pairs or is fixed. The electrical circuit is closed when the contact and the movable contact come into contact with each other and the wiring connected to the two contacts becomes conductive. The electrical circuit is closed. The electronic device is designed to perform a predetermined operation by such contact between the fixed contact and the movable contact.
[0003]
Some switch devices including a plurality of switches as described above include switches having different sizes and shapes. In a conventional switch device including two or more types of switches having different sizes and shapes, a fixed contact provided on a substrate or a movable contact provided on a movable member such as a button so as to correspond to the size of each switch. Different shapes and sizes. That is, a large switch is provided with a large fixed contact and a movable contact, and a small switch is provided with a small fixed contact and a movable contact. In addition, in order to obtain a good contact between the contacts according to the pressing of the switch, the fixed contact and the movable contact are arranged in such a shape and size as to cover a region near the periphery of the switch.
[0004]
By doing in this way, the contact area as large as possible can be obtained reasonably according to the size of the switch, and the contact between the movable contact and the fixed contact can be more reliably performed.
[0005]
Such a switch and its arrangement are also employed in various electrical devices other than electronic musical instruments.
[0006]
[Problems to be solved by the invention]
However, there is a problem caused by changing the shapes and sizes of the fixed contact and the movable contact. That is, depending on the size and shape of the contacts, there may be a difference in the contact quality between the movable contact and the fixed contact for each switch. This is due to the fact that misalignment, pattern defects, etc. can occur in different forms depending on the size and shape of the contacts in the contact formation process. For this reason, it is necessary to test the good contact between the movable contact and the fixed contact for each of the different types of switches, and the test requires a lot of time and effort.
[0007]
In addition, at the design and development stage of the switch device, it is necessary to test the goodness of contact between the contacts by changing various factors such as the material of the contact and its installation part and the manufacturing method. Including the size and shape of a large number of samples, many prototypes or many times of tests were required, which required a lot of labor.
[0008]
In addition, when two types of products are manufactured on the same manufacturing line, even if each product has a switch having the same shape, switches of different sizes may be used in different products. In this case as well, since different sizes of contacts are formed between different types of products, the problems described above may occur between products, and the switch continuity test is performed separately for each type of product. There was a need.
[0009]
The present invention has been made to solve the above-described problems, and can more easily conduct continuity tests of switches of different sizes, and can reduce the number of prototypes to be tested in the design development stage. It is another object of the present invention to provide a switch device.
[0010]
[Means for Solving the Problems]
The switch device of the present invention is provided with a fixed portion having a fixed contact provided on a substrate and the fixed contact, and the contact state and separation state with the fixed contact are switched by pressing from the outside, A switch device provided with a plurality of switches on the same surface, each having a movable part having a movable contact that contacts the fixed contact in the contact state, wherein the switch device is different in size as the fixed contact. Two or more types of fixed contacts are provided, and the fixed contacts are provided on the substrate. opposite Closer to the periphery One pair is provided and each has one extension length The movable contact is disposed such that the number of conductive surfaces corresponding to the extension length of the fixed contact faces the fixed contact, and each of the conductive surfaces has the same shape and has at least one movable contact. Is provided with a plurality of conductive surfaces corresponding to the extension length of one fixed contact, and the plurality of conductive surfaces are arranged so as to be in contact with all the fixed contacts when in contact with the fixed contacts. The contact is formed by a pair of comb-shaped contacts facing each other at a distance so that a pair of comb-shaped contacts are engaged with each other, and the pitch between the contacts of the plurality of switches is the same. In addition, each of the conductive surfaces of the movable contact is sized to contact across the contact of the comb-shaped contact pair spaced apart from each other, thereby achieving the above object.
[0011]
Alternatively, the switch of the present invention is provided with a fixed portion having a fixed contact provided on the substrate and the fixed contact, and the contact state and separation state with the fixed contact are switched by pressing from the outside, And a movable part having a movable contact that contacts the fixed contact in the contact state, the fixed contact on the substrate opposite A pair is provided near the periphery. Each has one extension length The movable contact is arranged such that a plurality of conductive surfaces corresponding to the extension length of the fixed contact are opposed to one fixed contact, and each of the conductive surfaces has the same shape and the fixed contact. The fixed contacts are all formed so as to come into contact with each other when they are in contact with each other, and the fixed contacts are formed by a pair of comb-shaped contacts facing each other at a distance so that the pair of comb-shaped contacts are engaged with each other. The inter-contact pitch of the plurality of comb-shaped contact pairs of the plurality of switches is the same, and each conductive surface of the movable contact is in contact with the inter-contacts of the comb-shaped contact pairs. Therefore, the above object is achieved.
[0012]
Alternatively, the switch of the present invention is a switch that includes a fixed portion provided on a substrate and a movable portion that cooperates with the fixed portion, and the fixed portion of the switch is provided on the substrate. opposite A pair is provided near the periphery. Each has one extension length A first fixed contact and a second fixed contact spaced apart from the first fixed contact in a central region of the switch, and the movable portion includes the first fixed contact and The first fixed contact and the second fixed contact are sequentially provided at different pressing distances by being pressed from the outside, and are sequentially provided at different pressing distances. A first movable contact and a second movable contact that are in contact with the fixed contact and the second fixed contact, wherein the first movable contact has a plurality of conductive properties according to the extension length of the first fixed contact. The surfaces are arranged so as to face one first fixed contact, and each of the conductive surfaces has the same shape and is arranged so as to contact all of the first fixed contacts at the time of contact, The first fixed contact is spaced so that the pair of comb-shaped contacts are engaged with each other. The comb-shaped contact pairs of the plurality of switches have the same pitch between the contacts, and each conductive surface of the first movable contact has the comb-shaped contact pair. The above-mentioned object is achieved by the size of the contact across the contact points spaced apart from each other.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a switch and a switch device according to the present invention will be described with reference to the drawings.
[0014]
(Embodiment 1)
FIG. 1 shows an operation panel unit 1 provided in an electronic keyboard instrument. The operation panel unit 1 includes a switch device 10 for causing a musical instrument to perform a predetermined operation, a rotary knob 92 and a ribbon controller 94, and a display unit 90 including a liquid crystal display device for displaying information such as operation status. Etc. The switch device 10 is installed in the switch device installation unit in the operation panel unit 1 and is electrically connected to a control device for an electronic musical instrument provided in a different place.
[0015]
The switch device 10 includes a plurality of switches 16 projecting on the operation side surface, and is protected by a protective material made of plastic or the like in which openings are provided at locations corresponding to the switches. The switch device 10 includes a substrate 12 on which predetermined wiring is provided, and a cover member 14 made of a flexible material such as a soft resin provided on the substrate 12. A plurality of movable portions 40 for a plurality of switches 16 having different sizes are integrally formed on the cover member 14. As illustrated, the switch device 10 is provided with a large number of switches having different sizes, such as a large switch 16a on the near side and a small switch 16b on the far side. In addition to this, the arrangement of the switches can be in various forms as required.
[0016]
FIG. 2 is a plan view showing the substrate 12 of the switch device 10. A plurality of fixing portions 20 for the plurality of switches 16 are provided on the substrate 12. The large switch 16a is provided with a large fixing portion 20a, and the small switch 16b is provided with a small fixing portion 20b.
[0017]
In the present embodiment, these fixed portions 20 are provided with a conductor pattern that forms a fixed contact pair. The fixed portion 20 is configured by two comb-shaped contact pairs (fixed contacts) 22 extending at a distance from each other at the periphery R1 (see FIGS. 2 and 4) of each switch. The comb-shaped contact pair 22 has an extended length L (see FIGS. 2 and 5) corresponding to the size of the switch in each switch 16. The extended length L is also different. In addition, the comb-teeth-type contact pair 22 is configured such that the comb-teeth-type contacts 22a and 22b are close to each other and arranged in parallel, and the adjacent comb-teeth of the opposing comb-teeth-type contacts are engaged with each other and spaced apart. Is placed.
[0018]
Such a comb-shaped contact pair 22 is applied to a contact pattern portion formed by etching a conductive material such as a conductive ink containing carbon or the like on the substrate 12 made of a camiphenol resin or a polyester film. Configured by printing. In the comb-shaped contact pair formed in this way, the contact is formed by a long line, so that stable conduction between the contact pair is obtained.
[0019]
Further, for example, an LED (light emitting diode) 24 is provided as a light emitter in the switch center region R2 (see FIGS. 2 and 4) between the two comb-shaped contact pairs 22 of the fixed portion 20a corresponding to the large switch 16a. ing. For example, the LED 24 is connected in series to one contact 22a or 22b of the comb-shaped contact pair. By doing so, current flows also through the LED 24 when the comb-shaped contact pair is conducted and light is emitted, so that the user can visually confirm the on state of the switch. Alternatively, the LEDs may be connected to an electric circuit independent of the comb-shaped contact pair. For example, by emitting each LED in a preset order, the user is notified of a switch (for example, a keyboard) to be pressed. It is also possible to provide such a function.
[0020]
In the present embodiment, the fixed contact pair is constituted by a comb-shaped contact pair. However, if the contact points are linear contacts that are close and parallel to each other, for example, a pair of linear or curved lines provided in parallel with an interval. Various shapes such as contacts can be formed. Further, in this embodiment, two fixed contact pairs are provided for one switch in a region near the peripheral edge of both sides of the switch, but one or two or more fixed contact pairs are “U” near the peripheral edge of the switch. It may be in the form of a letter or in an annular shape so as to surround the central region of the switch.
[0021]
FIG. 3 is a bottom view showing the back surface of the cover member 14, that is, the surface on the side facing the substrate 12. The cover member 14 is provided with a plurality of movable portions 40 that protrude upward and have different sizes at positions corresponding to the plurality of switches 16. Each movable portion 40 has a side wall thinner than the top wall so that it can be moved by pressing, and is integrally formed with the surrounding bottom wall. Further, on the back surface of each movable portion 40, a movable contact 42 constituted by the same circular conductive surface 420 is provided. The movable contact 42 is disposed at a position corresponding to the comb-shaped contact pair 22 of the fixed portion 20.
[0022]
Such a movable contact 42 is formed by, for example, integrally forming a movable contact protrusion on a cover member based on silicon rubber and applying conductive ink mainly composed of carbon to the protrusion. ing.
[0023]
In order to assemble the switch device according to this embodiment, the cover member 14 is put on the substrate 12 and fixed. The board 12 is positioned by engaging a notch 18 (shown in FIG. 2) provided at the front center portion thereof with a protrusion provided on a support member of the electronic keyboard instrument, and is fixed to bolt through holes at four corners. It is fixed through a bolt. When the cover member 14 is put on the substrate 12, the cover member 14 is positioned by engaging a notch 19 (shown in FIG. 3) provided in the front center portion with the protrusion on the support member. Are fixed to the substrate 12 through fixing bolts in the bolt through holes provided in.
[0024]
In a predetermined switch including the LED 24 provided on the substrate, the movable portion 40 is provided with a recess 44 in the switch central region for avoiding contact with the LED 24. Thus, the movable part 40 of the switch provided with the LED has a transparent or translucent translucent upper surface in order to transmit the light from the LED. However, the LED 24 may be provided on the cover member 14 side by being fixed to the recess 44 instead of being provided on the substrate. In this case as well, a conductive material mainly composed of carbon is provided along the back surface of the cover member 14 to provide a predetermined wiring, and the current is supplied to the LED by connecting to the wiring on the substrate. This can be made to emit light.
[0025]
The operation of the switch according to the present invention will be described below.
[0026]
FIG. 4 shows a cross section of the switch of the switch device of the present embodiment. The movable part 40 has a thick part 46 having a movable contact 42 on the surface, and is supported by a thin side wall 48 formed perpendicular to the substrate. The movable contact 42 and the comb-shaped contact pair 22 provided near the peripheral edge R1 of the switch 16 are arranged so as to face each other with a predetermined interval in a non-pressed state from the outside.
[0027]
Next, when the user presses the movable part upper surface 49 from the outside in the direction of the substrate as indicated by an arrow F in the figure, the side wall 48 is bent, the thick part 46 moves toward the substrate, and the movable contact 42 is moved. Is in contact with the pair of comb-shaped contacts 22 so as to straddle between them. Thereby, conduction between the comb-shaped contact pair 22 is obtained, and the switch is turned on. If the LED 24 is provided on either the substrate or the cover member as desired, current is also supplied to the LED through a predetermined wiring, and light is moved as shown by an arrow E in the figure. From the upper surface 49 of the substrate.
[0028]
5 and 6 show the positional relationship when the comb-shaped contact pair 22 and the movable contact 42 are in contact with each other. FIG. 5 corresponds to the large switch 16a and FIG. 6 corresponds to the small switch 16b. As can be seen from the figure, the dimension of the conductive surface 420 of the movable contact 42 is preferably sufficiently larger than the inter-contact pitch P of the comb-shaped contact pair 22 and approximately the same as the width of the contact pair. . If the pitch between the contacts is not large enough, good continuity between the contact pairs will not be obtained, and if it is larger than necessary, the contact pairs may contact the adjacent contact pairs. It is.
[0029]
Further, it is desirable to design the pitch between the contacts of the large switch 16a (FIG. 5) and that of the small switch 16b (FIG. 6) at the same pitch (for example, about 1.2 mm). This is because if the pattern of the fixed contact pair is made uniform in this way, the contact form at the time of contact between the fixed contact pair and the movable contact can be made more uniform. Further, the conduction between the switches due to the size of the switch. Non-uniformity is not likely to occur. Therefore, since the result of the continuity test for one switch can be reflected for other switches of different sizes, the continuity test of the switch device can be performed more easily.
[0030]
As described above, the movable contact 42 according to the above-described embodiment is configured by the conductive surfaces 420 having the same shape, the number of which varies depending on the extension length of the comb-shaped contact pair 22, and the size of the switch. Regardless of the shape of the contacts, it is standardized. Therefore, the difference in the conduction characteristics of the switch caused by the difference in the contact shape is unlikely to occur.
[0031]
In particular, when the movable portion 40 is formed integrally with the cover member 14, the effect is remarkable. This is because the movable contacts of the movable parts of the plurality of switches are formed at the same time in a single printing process, and the positional deviation that occurs in this case is considered to be the same for each movable contact. In such a case, if the cover member 14 is positioned by the engagement of the notch 19 and the protrusion of the support member as described above, a certain positional deviation occurs with respect to the substrate 12. Thus, in the case where each movable contact has the same positional deviation, if the shape of the movable contact is the same, the contact with the fixed contact pair in the movable contact of one switch is tested, If the continuity of the switch is confirmed, the test results can be applied to the continuity of other switches.
[0032]
Further, in the configuration in which the number of conductive surfaces of the movable contact varies according to the extension length of the fixed contact pair as described above, the contact is provided over the region near the periphery of the switch regardless of the size of the switch. For example, even when the user presses the end of the switch, the movable contact provided in this portion can come into contact across the pair of fixed contacts, so that a more reliable switch operation is performed.
[0033]
In the present embodiment, the conductive surface 420 of the movable contact 42 is circular. However, the conductive surface 420 may be formed in various shapes such as an oval, a quadrangle, and a triangle. Further, in a small switch, the movable contact 22 may have a configuration in which only one or a pair of conductive surfaces 420 are provided.
[0034]
Moreover, the movable part of each switch can be formed in various forms such as being formed separately from each other by being supported on an elastic support such as a spring instead of being integrally formed with the cover member. . Also in this case, a movable contact made of a conductive surface having the same shape is provided on the surface of the movable portion facing the substrate regardless of the size of the switch.
[0035]
(Embodiment 2)
7 and 8 show a touch response type key switch used in a keyboard portion of a keyboard as a switch according to the present invention. In the touch response type key switch, the two movable contacts of the first movable contact and the second movable contact are sequentially brought into contact with the fixed contact pair in accordance with the depth of pressing of the key.
[0036]
FIG. 7 shows a longitudinal sectional structure of the key switch 60 of this embodiment. The key switch 60 includes a peripheral portion 62a that is supported with a gap d1 between the movable portion 62 formed of a flexible material and the substrate surface in a non-pressed state, and a substrate surface larger than d1. And a central portion 62b supported with a gap d2 between them. A first movable contact 64a and a second movable contact 64b are provided in each of the central portions 62b. These movable contacts 64 are arranged so as to oppose the first and second fixed contact pairs 66a and 66b formed in the peripheral region R1 and the central region R2 of the switch on the substrate, respectively.
[0037]
FIG. 8 is a plan view showing the first and second movable contacts 64a and 64b and the first and second fixed contact pairs 66a and 66b at the time of contact (pressing) of the contacts. As can be seen from the figure, the first fixed contact pair 66a is provided so that the comb-shaped electrode pair has a substantially annular shape, and the second fixed contact pair 66b is a concentric circle at the center of the first fixed contact pair 66a. It is provided and configured in a form in which contact pairs are meshed with each other in a circular shape. Further, the first and second movable contacts 64 a and 64 b are configured by the same circular conductive surface 640. These numbers are different depending on the extension length (size) of the first and second fixed contact pairs, and six conductive surfaces 640 are provided for the first fixed contact pairs in the switch peripheral region. One conductive surface 640 is provided for the second fixed contact pair disposed and in the central region of the switch.
[0038]
In this way, even if the configuration is such that a pair of fixed contact points having different shapes are provided in one switch, the switch continuity test becomes easier by configuring the movable contact with the same shape conductive surface. .
[0039]
Next, the operation of the key switch 60 will be described. When the key is pressed by the user by a distance corresponding to the distance d1, the first movable contact 64a is first moved due to the bending of the movable portion. It contacts the fixed contact 66a. Thereby, conduction between the first fixed contact pair 66a is obtained. Here, the second movable contact 64b and the second fixed contact pair 66b provided at the center are separated from each other. Next, when the key is pressed by a distance substantially corresponding to the distance d2, the second movable contact 64b moves and contacts the second fixed contact 66b.
[0040]
As described above, the key switch 60 of the present embodiment has two movable contacts that operate in conjunction with the pressing of the switch, and can provide conduction between the pair of fixed contacts in two stages. If the time difference between the conduction between the first fixed contact pair and the conduction between the second fixed contact pair is detected, it is possible to determine the descending speed of the key and thus the magnitude of the key pressing force. By using such a touch response type key switch, the electronic keyboard instrument can be provided with a function of changing the volume according to the strength of the player's pressing operation.
[0041]
In such a key switch, it is possible to provide the LED 24. LED24 is arrange | positioned in the space above a movable contact in the center area | region of a movable part, for example.
[0042]
Further, the shapes of the first and second fixed contact pairs are not limited to the comb-shaped contact pairs and the contact pair shapes engaged with the concentric circular shapes, but various linear or curved shapes arranged in parallel at intervals. It can be a linear contact pair.
[0043]
Further, by forming the movable portion to have a predetermined rigidity, a clear difference is generated in the pressing force required to bring the first movable contact and the second movable contact into contact with the fixed contact pair, and the pressing force A switch that performs two switch operations depending on the degree (depth) may be used.
[0044]
Although the switch and switch device of the present invention have been described with respect to the above-described two embodiments, various other forms may be employed. For example, in the first embodiment, a switch device having switches of different sizes has been described. However, in a switch device having switches of the same size, a movable contact configured by a plurality of conductive surfaces having the same shape is provided on the movable portion. It is good also as a structure. Similar to the device of the first embodiment, such a device also has a structure having LEDs in at least one switch. Thus, even if a switch having the same size is provided in one switch device, a switch device having a different switch size may be manufactured. When manufacturing switches with different switch sizes in the same factory or line, if the movable contact is formed with one or more conductive surfaces of the same shape, the contact shape can be unified. This provides the advantage that the switch continuity test can be facilitated.
[0045]
Further, in the above two embodiments, the mode in which the switching operation is performed by contacting the movable contact so that the movable contact straddles the comb-shaped contact pair provided as the fixed contact by pressing from the outside has been described. It is also possible to adopt a switch form in which the electric circuit is closed when the wire and the movable contact come into contact with each other and the wiring connected to the two contacts becomes conductive. When a movable contact is constituted by a plurality of conductive surfaces for one switch, the respective conductive surfaces are electrically connected to each other by a wiring made of a conductive material containing carbon that has been applied or printed.
[0046]
Moreover, you may comprise the switch apparatus which used a part of switch in the switch apparatus of Embodiment 1 as the key switch of Embodiment 2. FIG. The fixed contact pairs of these switches can be formed on a single substrate.
[0047]
In the above description, the switch that performs an operation in which the movable contact is brought into contact with the fixed contact pair by pressing is described. However, the movable contact that is in contact with the fixed contact pair when not pressed is separated from the fixed contact pair by pressing. A switch having a simple structure may be used. For such a switch-off structure by pressing, for example, the one described in Japanese Patent No. 2903931 can be used.
[0048]
【The invention's effect】
As described above, the switch device according to the present invention. of Each switch is on the board Each of the switches is provided with a pair of fixed contacts near the opposing peripheral edges, each having one extended length, In contrast to the fixed contact, the movable contact includes a number of conductive surfaces corresponding to the extension length of the fixed contact, and the conductive surfaces have the same shape. Furthermore, the fixed contact is formed by a pair of comb-shaped contact pairs facing each other at a distance so that a pair of comb-shaped contacts are engaged with each other, and between the contacts of the comb-shaped contact pairs of the plurality of switches. The pitch is the same. And each conductive surface of a movable contact is made into the magnitude | size which straddles across the contact which mutually spaced apart the comb-tooth type contact pair. Therefore, even when the switch size is different in one switch device, both the contact shape of the movable contact and the contact pair shape of the fixed contact are unified, and the contact form of both contacts is unified accordingly. Is done. In addition, the non-uniformity of the continuity between the switches due to the size of the switches hardly occurs. as a result Even when the size of the switch is different in one switch device, the contact shape of the movable contact is unified, and the continuity test of the switch can be performed more easily.
[0049]
In addition, when a switch having the same size is provided in one switch device, but a switch having a different size is manufactured for each switch device, similarly, Both the contact shape of the movable contact and the contact pair shape of the fixed contact are standardized. Therefore, the continuity test of the switch can be performed more easily.
[Brief description of the drawings]
FIG. 1 is a plan view of an operation panel portion of an electronic musical instrument having a switch device of the present invention.
FIG. 2 is a plan view of a substrate provided in the switch device of the present invention.
FIG. 3 is a plan view showing a back side surface of a cover member provided in the switch device of the present invention.
FIG. 4 is a partial cross-sectional view of the switch device of the present invention.
FIG. 5 is a diagram showing a contact state between a movable contact and a fixed contact pair in a large switch of the switch device of the present invention.
FIG. 6 is a view showing a contact state between a movable contact and a fixed contact pair in a small switch of the switch device of the present invention.
FIG. 7 is a cross-sectional view of a switch according to another embodiment of the present invention.
FIG. 8 is a diagram showing a contact state between a movable contact and a fixed contact pair of a switch according to another embodiment of the present invention.
[Explanation of symbols]
1 Operation panel
10 Switch device
12 Substrate
14 Cover member
16 switches
20 Fixed part
22 Comb-shaped contact pair (fixed contact)
24 Light Emitting Diode (Light Emitter)
40 Moving parts
42 Movable contacts
46 Movable part thick part
48 Moving part side wall
49 Movable part upper surface
420 Conductive surface
60 Key switch (switch)
62a 1st movable part
62b Second movable part
64a First movable contact
64b Second movable contact
66a First fixed contact pair (first fixed contact)
66b Second fixed contact pair (second fixed contact)
640 conductive surface
E light
F Press from outside
L Extension length
R1 near the edge of the switch
Central area of R2 switch

Claims (3)

A fixed portion having a fixed contact provided on a substrate, and a fixed portion provided opposite to the fixed contact, and a contact state and a separation state with the fixed contact are switched by an external pressure, and the fixed contact in the contact state A switch device having a plurality of switches each having a movable part having a movable contact that contacts the same, wherein the switch device has two or more types of fixed contacts having different sizes as the fixed contacts. The fixed contacts are provided in a pair near the opposing peripheral edges of the switches on the substrate, each having one extended length, and the movable contacts according to the extended length of the fixed contacts. A plurality of conductive surfaces are arranged so as to face the fixed contacts, each of the conductive surfaces has the same shape, and at least one movable contact is a plurality according to the extension length of one fixed contact. A plurality of conductive surfaces. Is arranged so as to come into contact with the fixed contacts at the time of contact with the fixed contacts, and the fixed contacts are comb-toothed so that a pair of comb-shaped contacts are engaged with each other and spaced apart from each other. The contact pitches of the plurality of switch comb-shaped contact pairs are the same, and the conductive surfaces of the movable contacts are contact points spaced apart from each other. A switch device characterized in that it is sized to contact across the board. A fixed portion having a fixed contact provided on a substrate, and a fixed portion provided opposite to the fixed contact, and a contact state and a separation state with the fixed contact are switched by an external pressure, and the fixed contact in the contact state a switch having a movable portion having a movable contact in contact with said fixed contact, each provided with a pair periphery near opposite of said switch in said substrate has a single extension設長, The movable contact is disposed such that a plurality of conductive surfaces according to the extension length of the fixed contact are opposed to one fixed contact, and each of the conductive surfaces has the same shape and the fixed contact. It is arranged so that all the fixed contacts are brought into contact with each other at the time of contact, and the fixed contacts are formed by a pair of comb-shaped contacts facing each other at a distance so that the pair of comb-shaped contacts are engaged with each other. Comb-shaped connection of the plurality of switches Switch contact pitch between pairs is the same, the conductive surface of the movable contact, characterized in that it is sized to contact across the contacts at a mutually spacing of the comb contact pair. A fixed portion provided on the substrate, a switch and a movable portion cooperating with said fixed portion, the fixed portion, are each provided with a pair periphery near opposite of said switch in said substrate 1 A first fixed contact having one extending length, and a second fixed contact spaced apart from the first fixed contact in a central region of the switch, and the movable part includes: The first fixed contact and the second fixed contact are provided opposite to each other, and the contact state between the first fixed contact and the second fixed contact is sequentially obtained at different pressing distances by pressing from the outside, The first movable contact and the second movable contact that contact the first fixed contact and the second fixed contact in the contact state are provided, and the first movable contact extends from the first fixed contact. A plurality of conductive surfaces depending on the length are opposed to one first fixed contact. Each of the conductive surfaces has the same shape and is arranged so as to come into contact with the first fixed contact at the time of contact, and the first fixed contact has a pair of comb-shaped contacts. Each of the first movable contacts is formed by a pair of comb-shaped contact pairs facing each other so as to mesh with each other, and the pitch between the contacts of the plurality of switches is the same. The switch is characterized in that the conductive surface is sized so as to straddle the contacts spaced apart from each other of the comb-shaped contact pair.

Images