JP2005100918A - Switch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an easily manufacturable, inexpensive and precise switch. <P>SOLUTION: The switch is equipped with a case 10; a flexible switch substrate 30 attached to the case 10, on which a first contact pattern 31 and a second contact pattern 37 are provided so as to be exposed to inside the case 10; a contact spring 50 encased in the case 10, which has a first contact 57 always contacting the first contact pattern 31, and a second contact 61 installed apart from the second contact pattern 37 by a predetermined distance; a pressing member 70 which slidingly moves the second contact 61 to make it contact the second contact pattern 37 for turning-on by pressing a pressing part 53 of the contact spring 50; and a cover 90. The flexible switch substrate 30 is provided with a first terminal pattern 33 coupled to the first contact pattern 31, and a second terminal pattern 39 coupled to the second contact pattern 37. The first and the second terminal patterns 33, 39 are exposed to the outer surface of the case 10. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a press type, a slide type, a push button type switch, and the like having various operation functions of various electric devices, and more particularly to a switch suitable for use in surface mounting.

  Conventionally, among electronic components used in various electric devices, etc., it is placed directly on a circuit board, a terminal pattern protruding from the case of the electronic component is brought into contact with a connection pattern provided on the circuit board, and solder reflow is performed. There is a surface mount type that is directly connected and fixed by, for example.

  Among these types of electronic components, coil springs and leaf springs are used as detection switches that are attached to various parts of various electrical devices, such as switches that detect the insertion of cassette tapes, compact discs, various cards, and the like. There is a small surface-mounting type pressing switch configured by using a contact spring.

  In this switch, for example, two metal plates are housed in a case, one winding end of a coil spring contact spring (movable contact member) is connected to one metal plate, and the contact spring is connected to the other metal plate. The other winding end portion is arranged at a predetermined distance, and the other winding end portion of the contact spring is pressed by an operation lever (pressing member) so that the winding end portion is resisted against the elastic force of the contact spring. It is configured to be bent and abut against the other metal plate to turn on between the two metal plates (for example, Patent Document 1).

  On the other hand, as another example of an electronic component, there is a conventional surface mount type slide type switch. In this slide type switch, for example, as shown in Patent Document 2, a fixed contact for a switch made of a metal plate is exposed on the bottom surface of an opening of a synthetic resin case, while a metal terminal pulled out from the fixed contact is placed in a case. A sliding type object (sliding member) having a movable contact (movable contact member) attached to the opening, and a cover so as to cover the opening of the case. Installed and configured.

  Another example of an electronic component is a surface-mount type push button switch. For example, as shown in Patent Document 3, this push button type switch exposes a fixed contact for a switch made of a metal plate on the bottom surface of an opening of a synthetic resin case, and a dome-shaped movable contact plate thereon. Further, a key top (pressing member) is placed thereon, and a metal terminal pulled out from the fixed contact is projected from the outer surface of the case.

  However, the press-type switch, the slide-type switch, and the push-button type switch having the above-described structure need to be insert-molded into a case-molding die because a metal plate that serves as a contact point that has been processed in advance is subjected to manufacture. There is a problem that the metal mold for forming the metal plate is complicated and expensive.

Further, in order to reduce the size of the electronic component, when each terminal portion protruding from the outer peripheral side surface of the case is bent to the back side of the case, a further bending process is required, and the manufacturing process becomes complicated.
JP-A-10-21791 Japanese Utility Model Publication 4-42026 Japanese Utility Model Publication No. 62-25425

  The present invention has been made in view of the above points, and an object thereof is to provide a switch that is easy to manufacture, inexpensive, and precise.

  According to the first aspect of the present invention, the first contact pattern, the second contact pattern, the first terminal pattern connected to the first contact pattern, and the second contact pattern are connected to the surface of the case and the film. A flexible switch board provided with a two-terminal pattern, wherein the first and second contact patterns are exposed in the case, and the first and second terminal patterns are exposed on the outer surface of the case; A switch comprising: a movable contact member that is housed; and a pressing member or a sliding member that presses or slides the movable contact member to conduct between the first contact pattern and the second contact pattern. It is in.

  The invention according to claim 2 of the present application is characterized in that the portion of the flexible switch substrate provided with the first and second terminal patterns is attached along the outer surface of the case. It is in the switch described in.

  According to a third aspect of the present invention, the movable contact member is installed at a predetermined distance from the first contact portion electrically connected to the first contact pattern and the second contact pattern. A contact spring made of a spring material integrally formed with the second contact portion, and a shaft support portion for pivotally supporting the contact spring by winding or curving the contact spring; The pressing portion pressed by the pressing member, the end portion on the shaft support portion side as the first contact portion and the end portion on the pressing portion side as the second contact portion, and the second contact portion, When the pressing portion is pressed by the pressing member, the pressing portion is installed so as to slide on the surface on which the first and second contact patterns are provided and move onto the second contact pattern. It exists in the press-type switch of Claim 1 or 2.

  The invention according to claim 4 of the present application is the slide type switch according to claim 1 or 2, wherein the movable contact member is formed of a cantilever spring made of a metal plate.

  The invention according to claim 5 of the present application is the push button type switch according to claim 1 or 2, wherein the movable contact member is formed of a reversing plate or a rubber contact member.

  According to the first aspect of the present invention, the flexible switch board having the first contact pattern and the second contact pattern provided on the surface of the film is arranged so that the first contact pattern and the second contact pattern are exposed. Since it was attached inside, the manufacture becomes easy compared with the case where the metal plate which carried out sheet metal processing beforehand is attached in a case like the past. That is, it is easy to form the first and second contact patterns on the film, and since the film is flexible, there is no need to perform sheet metal processing in advance, and a large number of sets of the first and second contact patterns are formed on one large film. By forming the two-contact pattern, a large number of cases can be easily formed at the same time, and mass production is facilitated. Further, since the first and second contact patterns and the first and second terminal patterns are provided on the film surface, the dimension of the position with respect to the case is accurate. On the other hand, when using a metal plate as in the past, it is necessary to insert the metal plate into the case after cutting the metal plate into a specified shape and then bending it before insert molding. It is difficult to measure the size.

  According to the first and second aspects of the invention, since the first terminal pattern and the second terminal pattern formed on the flexible switch substrate are exposed on the outer surface of the case, a surface mount type switch can be easily manufactured. That is, since the flexible switch board is flexible, the portion of the flexible switch board provided with the first terminal pattern and the second terminal pattern can be easily bent and attached along the outer surface of the case. Becomes easier.

  According to the third aspect of the present invention, the second contact portion and the second contact pattern are formed by sliding the second contact portion of the contact spring on the surface provided with the first and second contact patterns. Thus, the switch of the present invention can be configured as a push-type switch that has a simple structure and can be turned on and off reliably.

  According to the fourth aspect of the invention, the switch of the present invention can be configured as a slide-type switch by using the movable contact member as a cantilever spring.

  According to the fifth aspect of the present invention, the switch of the present invention can be configured as a push button type switch by using the movable contact member as a reversing plate or a rubber contact member.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an exploded perspective view of a press-type switch (hereinafter referred to as “switch” in this embodiment) 1 according to a first embodiment of the present invention. 2 is a view showing the completed switch 1. FIG. 2A is a front view of the switch 1 (however, description of patterns on the cover 90 and the flexible switch board 30 is omitted), and FIG. 2B is a switch. 2 (c) is a rear view of the switch 1, and FIG. 2 (d) is a view of only the first and second contact patterns 31, 37 of the flexible switch board 30 as viewed from directly above. 2E is a bottom view of the switch 1. FIG. FIG. 3 is a perspective view of the completed switch 1 as seen from the back side.

  As shown in FIG. 1, the switch 1 includes a case 10, a flexible switch board 30 attached in the case 10, and a movable contact member (hereinafter referred to as “ 50 ”and a pressing member 70, and a cover 90 that is attached so as to cover the storage portion 11 of the case 10. Each component will be described below.

  The case 10 is a molded product of a synthetic resin formed in a substantially rectangular shape, and is provided with a substantially rectangular concave storage portion 11 at the center thereof, and a concave lever insertion portion 13 on one side of the outer peripheral four sides. It is configured. Further, a columnar contact spring shaft support portion 15 protrudes from a predetermined position on the bottom surface in the housing portion 11 of the case 10, and a columnar pressing member shaft support portion 17 protrudes from the surface of the lever insertion portion 13. . Further, on the left and right outer surfaces of the case 10, a pair of locking portions 19, 19 protruding in a claw shape is provided. A fixed portion insertion portion 21 that is recessed in a rectangular shape is provided at the center of one side of the back surface of the case 10. The depth of the fixed portion insertion portion 21 is such that when the fixed portion 97 provided on the cover 90 described below is locked, the fixed portion 97 protrudes from the back surface of the case 10 by a thickness substantially the same as the thickness of the flexible switch substrate 30. It is formed to a depth.

  Here, FIG. 4 is a perspective view of the flexible switch board 30 in a state before being mounted in the case 10. As shown in the figure, the flexible switch substrate 30 includes a first contact pattern 31 and a second contact pattern in parallel near one end of the surface of a film 32 made of flexible synthetic resin (for example, polyphenylene sulfide or polyimide). 37, a first terminal pattern 33 and a second terminal pattern 39 are provided in parallel near the other end of the film surface, and the first contact pattern 31 and the first terminal pattern 33 are connected by a connection pattern 35. The second contact pattern 37 and the second terminal pattern 39 are connected by a connection pattern 41, and a through hole 43 is provided in a portion of the case 10 where the contact spring shaft support portion 15 is provided. The portions of the flexible switch substrate 30 provided with the first and second terminal patterns 33 and 39 constitute externally exposed portions 45 and 47 that project in the form of tongues. The first and second contact patterns 31 and 37, the first and second terminal patterns 33 and 39, and the connection patterns 35 and 41 may be formed by etching a copper foil attached to the film 32 or by using a conductive paste (silver paste). Formed by firing a printed material such as silver paste or silver carbon paste, or by forming a metal thin film by physical vapor deposition (PVD) or chemical vapor deposition (CVD) of metal. Has been. Here, as a method of physical vapor deposition, vacuum vapor deposition, sputtering, ion beam vapor deposition, or the like is used. As a chemical vapor deposition method, a thermal CVD method, a plasma CVD method, a photo CVD method or the like is used. As a material of the pattern to be deposited, for example, a material in which a copper layer and a gold layer are sequentially formed on a nichrome base by vapor deposition is used.

  Returning to FIG. 1, the contact spring 50 is formed by winding a spring wire in a ring shape (spiral shape) at two locations, one of which serves as a shaft support portion 51 and the other as a pressing portion 53, and further protrudes from the shaft support portion 51 side. The end portion of the arm portion 55 of the spring wire rod is folded back into a U shape to form a first contact portion 57, and the end portion of the arm portion 59 of the spring wire rod protruding from the pressing portion 53 side is folded back into a U shape. The contact portion 61 is configured. The shaft support 51 is formed to have an inner diameter dimension in which the contact spring shaft support 15 of the case 10 can be rotatably inserted. The first and second contact portions 57 and 61 are located close to each other when there is no load.

  The pressing member 70 is an integrally molded product of synthetic resin, and is formed in a substantially V shape as a whole. From the through hole through which the pressing member shaft support portion 17 provided in the case 10 is rotatably inserted near the center. A pivot support 71 is provided, one side (side protruding from the case 10) of the pivot support 71 is a lever (pressed part) 73, and the other side (side accommodated in the case 10) is a spring pressing part 75. It is configured as. Here, the spring pressing portion 75 has one end surface in the vicinity of the tip as a pressing surface 77, and comes into contact with the side surface of the pressing portion 53 of the contact spring 50 from the side portion of the pressing surface 77 to blur the contact spring 50 in the thickness direction. The protrusion 79 for preventing is protruded.

  The cover 90 is formed in a substantially box shape in which a metal plate is dimensioned to cover the upper surface of the case 10 and its lower surface is opened. The opposite side walls 91, 93 of the side walls 91, 93, 95 that are bent downward from the three sides are formed of a pair of through holes that are locked to the locking portions 19, 19 of the case 10. Locking portions 98, 98 are provided, and a tongue-like fixing portion 97 projects from the lower side of the other side wall 95.

  First, a method for manufacturing the case 10 to which the flexible switch substrate 30 is attached will be described. That is, as shown in FIG. 5, when joining the first mold 150 and the second mold 180, the flexible switch substrate 30 shown in FIG. 4 is placed between the first mold 150 and the second mold 180. It is stored in the provided cavity 190. The cavity 190 has the same shape as that of the case 10. At this time, the portions of the externally exposed portions 45 and 47 of the flexible switch substrate 30 are folded back 180 ° so that the first and second terminal patterns 33 and 39 (see FIG. 4) face outward. The portion of the flexible switch substrate 30 provided with the first and second contact patterns 31 and 37 (see FIG. 4) is bent at a right angle by a pressing pin 153 provided on the first mold 150 side. In close contact with the inner surface of the cavity 190 of the second mold 180.

  Then, after the synthetic resin melted from the resin injection port 155 provided in the first mold 150 is filled into the cavity 190 and the molten synthetic resin is solidified, the first and second molds 150 and 180 are removed. The case 10 to which the flexible switch substrate 30 shown in FIG. 1 is attached is completed.

  By manufacturing as described above, the first and second contact patterns 31 and 37 are exposed in the case 10. Further, the externally exposed portions 45 and 47, which are portions of the flexible switch substrate 30 where the first and second terminal patterns 33 and 39 are provided, are exposed or protruded to the outside of the case 10, and further, the exposed or protruded externally exposed portions 45 and 47 are exposed. Is attached along the outer surface (side surface and lower surface) of the case 10 so that the first and second terminal patterns 33 and 39 are exposed. Further, in this embodiment, the first and second contact patterns 31 and 37 are exposed on the same surface in the storage portion 11 of the case 10.

  As shown in FIG. 1, the shaft support portion 51 of the contact spring 50 is inserted into the contact spring shaft support portion 15 of the case 10, and then the shaft support portion 71 of the pressing member 70 is inserted into the pressing member shaft support portion 17 of the case 10. . Then, when the cover 90 is covered so as to cover the storage portion 11 of the case 10 and the locking portions 19 and 19 of the case 10 are locked to the locking portions 98 and 98, the switch 1 is completed.

  At this time, as shown in FIG. 2A, the pressing surface 77 of the pressing member 70 is in contact with the outer periphery of the pressing portion 53 of the contact spring 50. Further, points a and b shown in FIG. 2D indicate contact positions of the first and second contact portions 57 and 61 of the contact spring 50, respectively. As can be seen from FIG. Both the first and second contact portions 57 and 61 are in contact with the first contact pattern 31 of the flexible switch substrate 30. Note that the second contact portion 61 only needs to be installed at a predetermined distance from the second contact pattern 37, and does not necessarily need to be in contact with the first contact pattern 31.

  The switch 1 configured as described above is configured such that the surface (lower surface) of the case 10 on which the first and second terminal patterns 33 and 39 are exposed is placed on a circuit board (not shown), and the first and second terminals. The patterns 33 and 39 are fixed to the connection patterns provided on the circuit board by soldering or a conductive adhesive, and are surface-mounted. At the same time, the fixing portion 97 of the cover 90 is also fixed to a fixing pattern provided on the circuit board by soldering or a conductive adhesive, so that the switch 1 is securely fixed on the circuit board.

  Next, the operation of the switch 1 will be described. In the state shown in FIG. 2, when the moving body 100 presses the lever 73 of the pressing member 70 from the side as shown in FIG. 2A, the pressing member 70 is pressed as shown in FIG. 6A. The shaft is pivoted about the shaft support portion 17, the pressing surface 77 of the pressing member 70 presses the pressing portion 53 of the contact spring 50, and the shaft support portion 51 of the contact spring 50 is twisted in the direction of increasing the number of turns. A portion closer to the pressing portion 53 than the support portion 51 is rotated, whereby the second contact portion 61 slides on the flexible switch substrate 30 to form the second contact pattern 37 as shown in FIG. This makes contact between the first and second contact patterns 31 and 37, that is, between the first and second terminal patterns 33 and 39 via the contact spring 50. If the pressing member 70 is further rotated by moving the movable body 100 in the same direction, the second contact portion 61 slides on the second contact pattern 37 as shown in FIG. The ON state between the first and second contact patterns 31, 37, that is, the first and second terminal patterns 33, 39 is maintained. That is, the second contact portion 61 of the contact spring 50 is slid on the surface on which the first and second contact patterns 31 and 37 are provided by being pressed by the pressing member 70, as shown in FIG. As shown, it is installed so as to be turned on by moving on the second contact pattern 37.

  On the other hand, when the moving body 100 is moved in the opposite direction to release the pressing of the pressing member 70 by the moving body 100, the pressing member 70 is restored to the original order in the reverse order due to the elastic return force of the contact spring 50. The position automatically returns to the position, and the second contact portion 61 of the contact spring 50 returns to the first contact pattern 31 shown in the contact position b in FIG. In the meantime it returns to the off state.

  In the above operation example, the lever 73 of the pressing member 70 is pressed from the side by the moving body 100. However, the pressing member 70 can be rotated by pressing the lever 73 downward from above.

  Moreover, in the said embodiment, although the contact spring 50 was comprised using the spring wire as a spring material, you may comprise by a leaf | plate spring material as a spring material like the contact spring 50-2 shown, for example in FIG. That is, the contact spring 50-2 forms a shaft support portion 51-2 by curving a predetermined portion of the leaf spring in a substantially C shape, and presses the pressing portion 53- by curving another predetermined portion in a substantially U shape. 2 and the end portion of the leaf spring arm portion 55-2 protruding from the shaft support portion 51-2 side is folded back into a U-shape to form a first contact portion 57-2, from the pressing portion 53-2 side. An end portion of the projecting leaf spring arm portion 59-2 is folded in a U shape to form a second contact portion 61-2. Also in the case of this contact spring 50-2, the first and second contact portions 57-2 and 61-2 are located close to each other when there is no load. As with the contact spring 50 shown in FIG. 1, the contact spring 50-2 is attached to the switch 1 by inserting the shaft support portion 51-2 into the contact spring shaft support portion 15 of the case 10 so as to be rotatable. -2 is brought into contact with the pressing surface 77 of the pressing member 70.

  Further, for example, the shape of the contact spring 50 can be variously modified according to the installation positions of the first and second contact patterns 31 and 37. For example, the first contact portion 57 on the fixed side is provided at a predetermined position. Any structure that contacts the first contact pattern 31 may be used. The second contact portion 61 on the movable side may have any structure as long as the second contact portion 61 is in contact with the second contact pattern 37 by being pressed by the pressing member 70.

  In the above-described embodiment, the flexible switch substrate 30 is configured as a single sheet. However, the flexible switch substrate used in the present invention may be configured as a plurality of sheets. For example, the first contact pattern 31, the first terminal pattern 33, and the connection pattern. 35 and the flexible switch board on which the second contact pattern 37, the second terminal pattern 39, and the connection pattern 41 are formed may be attached to the case 10 separately.

  Next, FIG. 8 is an exploded perspective view of the slide type switch 201 according to the second embodiment of the present invention, FIG. 9 is a perspective view of the assembled slide type switch 201, and FIG. 10A is a slide type switch 201. FIG. 10B is a cross-sectional view taken along the line AA of FIG. 10A, and FIG. 10C is a cross-sectional view taken along the line BB of FIG. 10B. As shown in these drawings, the slide-type switch 201 includes a case 210, a flexible switch board 230 mounted in the case 210, and a sliding member (hereinafter referred to as “sliding”) slidably housed in the housing portion 211 of the case 210. 260 ”, a movable contact member (hereinafter referred to as“ slider ”) 280 attached to the sliding type object 260, and a cover 300 attached so as to cover the storage portion 211 of the case 210. Configured. Each component will be described below.

  FIG. 11 is a perspective view of the case 210 viewed from the opposite side. As shown in FIGS. 8 and 11, the case 210 is a synthetic resin molded product formed in a substantially rectangular shape, and is provided with a substantially rectangular and concave storage portion 211 on one surface thereof, and within the four sides of the outer periphery. A notch-shaped knob insertion part 213 is provided on one side (upper side). In addition, fixing portion insertion portions 215, 215, 217, and 217 that are recessed in a rectangular shape are provided on both the left and right sides and the lower side of the surface opposite to the surface on which the storage portion 211 of the case 210 is provided. The depths of the fixed portion insertion portions 215, 215, 217, and 217 are the exposed sides of the fixed portions 309, 309, 311 and 311 when the fixed portions 309, 309, 311 and 311 provided on the cover 300 described below are locked. Is formed to a depth that is substantially the same as the surface of the case 210.

  FIG. 12 is a perspective view of the flexible switch board 230 in a state before being mounted in the case 210. As shown in the figure, the flexible switch board 230 is formed in a single linear shape toward the longitudinal direction of the surface of a film 232 made of a substantially rectangular synthetic resin (for example, polyphenylene sulfide or polyimide) having flexibility. A first contact pattern (hereinafter referred to as “common contact pattern”) 231 and two second contact patterns (hereinafter referred to as “on-off contact patterns”) 233 and 235 are formed in parallel, while three from the upper side of the film 232 The terminal forming portions 237, 239, and 241 protruding in the shape of tongues are protruded, and the first terminal pattern 243, the second terminal pattern 245, and the second terminal pattern 247 are formed on each of the terminal forming portions 237, 239, and 241. As a result, these are used as externally exposed portions 244, 246, 248, and the contact patterns 231, 233, 235 and the terminal pattern. It is constructed by connecting by each and over emissions 243,245,247 connection patterns 249,251,253.

  Here, the contact patterns 231, 233, 235, terminal patterns 243, 245, 247 and connection patterns 249, 251, 253 are formed by etching the copper foil attached to the film 232, or by conducting a conductive paste (silver paste or silver paste). It is formed by baking what printed carbon paste etc., or what made the metal thin film by physical vapor deposition (PVD) or chemical vapor deposition (CVD) of the metal. As a material of the pattern to be deposited, for example, a material in which a copper layer and a gold layer are sequentially formed on a nichrome base by vapor deposition is used.

  Here, a manufacturing method of the case 210 with the flexible switch substrate 230 will be described. That is, as shown in FIG. 14, when joining the first mold 400 and the second mold 430, the flexible switch substrate 230 shown in FIG. 12 is provided between the first mold 400 and the second mold 430. Stored in the cavity 450. The cavity 450 has the same shape as the case 210. At this time, the externally exposed portions 244, 246, and 248 of the flexible switch board 230 are in close contact with the inner surface of the cavity 450 in a state where the terminal patterns 243, 245, and 247 are turned 180 ° so as to face outward. I have to.

  Then, after the synthetic resin melted from the resin injection port 405 provided in the first mold 400 is filled into the cavity 450 and the molten synthetic resin is solidified, the first and second molds 400 and 430 are removed. 8. The case 210 with the flexible switch substrate 230 shown in FIG. 11 is completed. By manufacturing as described above, the common contact pattern 231 and the on / off contact patterns 233 and 235 are exposed on the same surface in the housing portion 211 of the case 210. Further, since the externally exposed portions 244, 246, and 248 of the flexible switch substrate 230 are bent along the surface of the case 210, the terminal patterns 243, 245, and 247 are connected to the outer surface (the knob insertion portion 213 of the case 210). The exposed surface and the surface provided with the fixed portion insertion portions 215, 215, 217, and 217) are exposed so as to be substantially the same surface.

  Next, FIG. 13 is a perspective view of the sliding mold 260 and the click plate 290. As shown in FIGS. 13 and 8, the sliding mold 260 is configured such that a knob 263 protrudes from the upper side of a base portion 261 formed by molding resin in a substantially rectangular shape, and slides on one surface of the base portion 261. The child attachment portion 265 and the other surface are the click plate attachment portion 270. The slider attachment portion 265 is provided with fixing portions 267 and 267 made of two protrusions for fixing the slider 280. On the other hand, the click plate mounting portion 270 is formed by forming the surface of the base portion 261 into a rectangular concave shape with a size to accommodate the click plate 290 described below, and the size between the both ends 271 and 271 is the both engagement of the click plate 290 described below. It is formed to be slightly smaller than the dimension between the parts 293 and 293.

  As shown in FIG. 8, the slider 280 is made of an elastic metal plate, and is configured by projecting two tongue-like elastic pieces 283 and 283 from a rectangular base 281. The bullets 283 and 283 are bent obliquely from the base 281 toward the direction away from the sliding mold 260, and in the direction away from the sliding mold 260 near the tips of the respective bullets 283 and 283. Sliding contact portions 285 and 285 that protrude toward the surface are provided. The base portion 281 is provided with fixing holes 287 and 287 into which the fixing portions 267 and 267 are inserted.

  On the other hand, as shown in FIG. 13, the click plate 290 is made of a substantially rectangular elastic metal plate, and is provided with a click portion 291 that protrudes in the direction away from the sliding mold 260 at the center, and the left and right sides thereof are arranged. It is comprised as the latching | locking part 293,293. In FIG. 13, the click plate 290 is described as being curved. However, in actuality, the click plate 290 has a flat plate shape when there is no load, and is curved when attached to the click plate attachment portion 270.

  Returning to FIG. 8, the cover 300 is made of a metal plate and is bent at right angles from the right and left sides of the main body 301 and the main body 301 having a dimension covering the surface of the case 210 on the side where the storage portion 211 is provided. Side portions 303 and 303 facing the case 210 and a lower side 305 bent at a right angle from the lower side of the main body 301 and facing the case 210 are configured. Two concave click engaging portions 307 and 307 are provided at predetermined positions on the surface of the main body portion 301 where the click portion 291 of the click plate 290 is engaged and disengaged. From the top, the fixing portions 309 and 309 having a tongue-like shape and engaging with the fixing portion insertion portions 215 and 215 of the case 210 protrude, and from the tip side of the lower side portion 305, the fixing portion of the case 210 has a tongue-like shape. Two fixed portions 311 and 311 having dimensions and shapes that engage with the insertion portions 217 and 217 protrude.

  In order to assemble the slide-type switch 201, first, the slider 280 is installed on the slider mounting portion 265 of the slide-type object 260. At this time, the fixing portions 267 and 267 are connected to the base portion of the slider 280. It inserts in the fixing holes 287 and 287 provided in 281, and fixes the tip by heat caulking. As a result, the sliding contact portions 285 and 285 of the slider 280 come into sliding contact with the common contact pattern 231 and the on / off contact patterns 233 and 235 with a structure of a cantilever spring. Next, as shown in FIG. 13, the click plate 290 is inserted into the click plate mounting portion 270 on the opposite side of the sliding mold 260, and both the locking portions 293 and 293 of the click plate 290 are connected to the click plate mounting portion 270. The click plate 290 is fixed in a state where the click plate 290 is bent in the direction away from the click plate mounting portion 270 by being engaged with both ends 271 and 271.

  Then, the base 261 of the sliding mold 260 to which the slider 280 and the click plate 290 are attached is stored in the storage portion 211 of the case 210 shown in FIG. When the fixing portions 309, 309, 311, and 311 are bent and inserted and locked to the fixing portion insertion portions 215, 215, 217, and 217 of the case 210, the slide type switch 201 is completed.

  At this time, as shown in FIG. 10, if the sliding mold 260 is moved to one end (right end), the sliding contact portions 285 and 285 of the slider 280 are respectively connected to the common contact pattern 231 shown in FIG. The click portion 291 of the click plate 290 is engaged with one click engagement portion 307.

  The slide-type switch 201 configured as described above is configured such that the surface of the case 210 where the terminal patterns 243, 245, and 247 are exposed (the lower surface of FIG. 10B) is placed on a circuit board (not shown) Surface mounting is performed by fixing the patterns 243, 245, and 247 to the connection patterns provided on the circuit board by soldering, conductive adhesive, or the like. At the same time, the fixing portions 309, 309, 311 and 311 of the cover 300 are also fixed to a fixing pattern provided on the circuit board by soldering or conductive adhesive, and the slide type switch 201 is fixed on the circuit board. to be certain.

  In the state shown in FIG. 10, if the knob 263 is moved in the direction of arrow C shown in FIG. 10A, one sliding contact portion 285 of the slider 280 moves from the on / off contact pattern 233 to the on / off contact pattern 235. The on / off output between the terminal patterns 243, 245 and 247 changes. When the sliding object 260 is moved to the one end shown in FIG. 10 and to the opposite end, the click part 291 of the click plate 290 becomes the click engaging part 307 of the cover 300 in both cases. By engaging, a click feeling is generated.

  In the above embodiment, the flexible switch board 230 is composed of a single sheet. However, a plurality of flexible switch boards may be used in the present invention. For example, the common contact pattern 231, the on / off contact pattern 233, and the on / off contact pattern 235 are formed. Separate flexible switch boards may be attached to the case 210, respectively.

  Next, FIG. 15 is a schematic sectional view of a push button type switch 501 according to the third embodiment of the present invention. As shown in the figure, this push button type switch 501 includes a case 510, a flexible switch board 530 mounted in the case 510, and a movable contact member mounted on the flexible switch board 530 (hereinafter referred to as this embodiment). In this embodiment, a pressing member (hereinafter referred to as a “key top”) 560 connected to the case 510 by a plate member 561 is provided. Each component will be described below.

  The case 530 is a molded product of a synthetic resin formed in a substantially rectangular shape, and is configured by providing a concave storage portion 511 on the upper surface thereof. Further, a fixing projection 515 is provided on the upper surface (however, FIG. 15 shows a state in which it is crushed by heat crimping).

  FIG. 16 is a perspective view of the flexible switch substrate 530 in a state before being mounted in the case 510. As shown in the figure, the flexible switch substrate 530 is formed with a first contact pattern 531 on the surface of a film 532 made of a substantially rectangular synthetic resin (for example, polyphenylene sulfide or polyimide) having flexibility. A C-shaped second contact pattern 533 is formed so as to surround the first terminal pattern 531 and the second terminal pattern 535 from the first contact pattern 531 and the second contact pattern 533 to one end of the film 532. They are configured to be connected and pulled out via a first contact pattern 534a and a second contact pattern 535a.

  The first contact pattern 531, the second contact pattern 533, the first terminal pattern 534, and the second terminal pattern 535 can be formed by etching the copper foil attached to the film 532 or by using a conductive paste (silver paste, silver carbon paste, etc. ) Is printed, or a metal thin film is formed by physical vapor deposition (PVD) or chemical vapor deposition (CVD) of a metal. As a material of the pattern to be vapor-deposited, for example, a material in which a copper layer and a gold layer are sequentially formed on a nichrome base by vapor deposition is used.

  Here, the manufacturing method of the case 510 with the flexible switch substrate 530 is omitted in the drawing, but the first and second molds having the same shape as the case 510 are formed as in the first and second embodiments. When the externally exposed portion 536 of the flexible switch substrate 530 formed with the first and second terminal patterns 534 and 535 is joined, the terminal patterns 534 and 535 are externally connected as shown by dotted lines in FIG. It is stored in a state where it is folded 180 ° so as to be oriented, and is brought into close contact with the inner surface of the cavity.

  Then, after filling the cavity with the synthetic resin melted from the resin injection port provided in the mold and solidifying the molten synthetic resin, the mold is removed to complete the case 510 with the flexible switch substrate 530 shown in FIG. To do. By manufacturing as described above, the first contact pattern 531 and the second contact pattern 533 are exposed on the bottom surface of the housing portion 511 of the case 510. Further, the external exposed portion 536 of the flexible switch substrate 530 is exposed to the outside of the case 510, and the exposed external exposed portion 536 is bent along the outer surface of the case 510 (here, the side surface and the bottom surface of the case 510). Thus, the first and second terminal patterns 534 and 535 are exposed on the outer surface of the case 510 so as to be substantially flush with the same.

  Next, the reversing plate 520 is formed by bending an elastic metal plate into a dome shape. When the outer periphery of the reversing plate 520 is placed on the connection pattern 533, the center portion has a predetermined gap above the contact pattern 531. It is formed so as to be located between.

  Next, the key top 560 is a synthetic resin molded product attached to a plate member 561 made of a flexible film plate or a metal plate, and the plate is inserted through a small hole 565 provided in the center of the plate member 561. A main body portion 562 is provided on the upper surface side of the member 561, and a protruding pressing portion 563 is provided on the lower surface side. A small hole 567 is provided in the vicinity of the outer periphery of the plate member 561.

  In order to assemble the push button type switch 501, the switch is configured by placing the reverse plate 520 on the first contact pattern 531 and the second contact pattern 533 on the bottom surface of the housing portion 511 of the case 510 shown in FIG. 15. Next, the plate member 561 is placed on the case 510, and the fixing projection 515 of the case 510 is inserted into the small hole 567, and the tip of the case 510 is heated and crushed and fixed. Thus, the push button type switch 501 is completed.

  The push button type switch 501 configured as described above places the surface (the lower surface in FIG. 15) of the case 510 on which the terminal patterns 534 and 535 are exposed on a circuit board (not shown). Surface mounting is performed by fixing the tip portions of the terminal patterns 534 and 535 to the connection patterns provided on the circuit board by soldering or conductive adhesive.

  When the key top 560 is pressed, the plate member 561 is bent and the key top 560 is lowered, whereby the pressing portion 563 of the key top 560 presses the central portion of the reversing plate 520 constituting the switch, thereby reversing the plate 520. Is reversed, and a click sensation is generated. When the pressure on the key top 560 is released, the reverse plate 520 and the plate member 561 are automatically restored to their original shapes, and the switch is turned off.

  It goes without saying that various modifications can be made to the shape and structure of each member constituting the push button type switch 501. In short, a pressing member is installed above the contact pattern provided on the case so as to be movable up and down. Any structure may be used as long as it is a push button type switch. Further, in this embodiment, the reversing plate is formed by bending an elastic metal plate into a dome shape. However, the present invention is not limited to this, and the resin film plate is bent into a dome shape so that a conductor is formed in the curved recess. You may comprise with the inversion board which arrange | positioned. Moreover, you may comprise by the rubber contact member (inversion board) formed by arrange | positioning a conductor in the recessed part of the rubber member of the shape where the bowl was reversed.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications may be made within the scope of the technical idea described in the claims and the specification and drawings. Is possible. Note that any shape or material not directly described in the specification and drawings is within the scope of the technical idea of the present invention as long as the effects and advantages of the present invention are achieved.

1 is an exploded perspective view of a press-type switch 1 according to a first embodiment of the present invention. FIGS. 2A and 2B are diagrams showing the push-type switch 1. FIG. 2A is a front view (however, description of patterns on the cover 90 and the flexible switch substrate 30 is omitted), FIG. 2B is a right side view, and FIG. 2C is a back view, FIG. 2D is a view of only the first and second contact patterns 31 and 37 of the flexible switch substrate 30 as viewed from directly above, and FIG. 2E is a bottom view. It is the perspective view which looked at the press-type switch 1 from the back surface side. 3 is a perspective view of a flexible switch substrate 30. FIG. 4 is a diagram illustrating a method for forming the case 10. FIG. FIG. 6A and FIG. 6C are front views of the case 1 (however, description of patterns on the cover 90 and the flexible switch substrate 30 is omitted), FIG. b) and FIG. 6D are the contact positions of the first and second contact portions 57 and 61 with respect to the first and second contact patterns 31 and 37 in the states of FIG. 6A and FIG. 6C, respectively. It is a figure which shows a and b. It is a perspective view which shows the contact spring (movable contact member) 50-2 concerning other embodiment. It is a disassembled perspective view of the slide type switch 201 concerning 2nd embodiment of this invention. 3 is a perspective view of a slide type switch 201. FIG. 10A is a plan view of the slide-type switch 201, FIG. 10B is a cross-sectional view taken along the line AA in FIG. 10A, and FIG. 10C is a cross-sectional view taken along the line BB in FIG. It is. 3 is a perspective view of a case 210. FIG. 3 is a perspective view of a flexible switch board 230. FIG. FIG. 6 is a perspective view of a sliding mold (sliding member) 260 and a click plate 290. 6 is a diagram illustrating a method of manufacturing the case 210. FIG. It is a schematic sectional drawing of the pushbutton type switch 501 concerning 3rd embodiment of this invention. 3 is a perspective view of a flexible switch substrate 530. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Press type switch 10 Case 11 Storage part 13 Lever insertion part 15 Contact spring axial support part 17 Press member axial support part 30 Flexible switch board 31 First contact pattern 32 Film 33 First terminal pattern 35 Connection pattern 37 Second contact pattern 39 First Two-terminal pattern 41 Connection pattern 43 Through-holes 45, 47 Externally exposed portion 50 Contact spring (movable contact member)
51 Axial support part 53 Press part 55 Arm part 57 First contact part 59 Arm part 61 Second contact part 70 Press member 71 Axle support part 73 Lever 75 Spring press part 77 Press surface 90 Cover 97 Fixing part 50-2 Contact spring ( Movable contact member)
51-2 Axial support portion 53-2 Pressing portion 55-2 Arm portion 57-2 First contact portion 59-2 Arm portion 61-2 Second contact portion 201 Slide type switch 210 Case 211 Storage portion 230 Flexible switch board 231 Common contact pattern (first contact pattern)
232 Film 233, 235 On-off contact pattern (second contact pattern)
243 1st terminal pattern 245 2nd terminal pattern 247 2nd terminal pattern 249, 251, 253 Connection pattern 260 Sliding type thing (sliding member)
261 Base 263 Knob 265 Slider mounting portion 270 Click plate mounting portion 280 Slider (movable contact member)
281 Base portion 283 Bounce piece 285 Sliding contact portion 290 Click plate 291 Click portion 300 Cover 301 Main body portion 303 Side side portion 305 Lower side portion 307 Click engagement portion 309, 311 Fixing portion 501 Pushbutton type switch 510 Case 520 Reversing plate (movable) Contact member)
530 Flexible Switch Board 531 First Contact Pattern 532 Synthetic Resin Film 533 Second Contact Pattern 534 First Terminal Pattern 535 Second Terminal Pattern 560 Key Top (Pressing Member)

Claims (5)

Case and
A first contact pattern, a second contact pattern, a first terminal pattern connected to the first contact pattern, and a second terminal pattern connected to the second contact pattern are provided on the surface of the film. A flexible switch board that is exposed in the case and attached so that the first and second terminal patterns are exposed on the outer surface of the case;
A movable contact member housed in the case;
A switch comprising a pressing member or a sliding member for pressing or sliding the movable contact member to conduct between the first contact pattern and the second contact pattern.   2. The switch according to claim 1, wherein a portion of the flexible switch board on which the first and second terminal patterns are provided is attached along the outer surface of the case.   The movable contact member integrally includes a first contact portion that is electrically connected to the first contact pattern and a second contact portion that is installed at a predetermined distance from the second contact pattern. A contact spring made of a spring material, and by rotating or curving the contact spring, a shaft support portion pivotally supporting the contact spring and a pressing portion pressed by the pressing member are provided. In addition to providing the end portion on the shaft support portion side as the first contact portion and the end portion on the pressing portion side as the second contact portion, the second contact portion is configured such that the pressing portion is pressed by the pressing member. 3. The pressing mold according to claim 1, wherein the pressing mold is installed so as to slide on the surface provided with the first and second contact patterns and move onto the second contact pattern. switch.   3. The slide-type switch according to claim 1, wherein the movable contact member is a cantilever spring made of a metal plate.   3. The push button type switch according to claim 1, wherein the movable contact member is a reversing plate or a rubber contact member.

Images