Switch device

A switching device includes a holder, an operation knob, a ring-like antenna, and a circuit board on which wire connecting the antenna to an external circuit and a detection means (switching portion) for detecting an operation of the knob are disposed. A light source for illuminating a display on the knob is disposed on the circuit board. A transparent lens member disposed on an outer periphery of the knob transmits a light from the light source so as to illuminate the outer periphery of the knob. A slider with a light guide path for a LED is accommodated in the holder so as to be movable forward and rearward integrally with the operation. The antenna is integral with the lens member. The knob and the slider are disposed in a center hole of the lens member.

This is a national phase application in the United States of International Patent Application No. PCT/JP2013/069196 with an international filing date of Jul. 12, 2013, which claims priority of Japanese Patent Application No. 2012-164575 filed on Jul. 25, 2012 the contents of which are incorporated herein by reference.

TECHNICAL FIELD

The present invention relates to a switch device such as an engine start/stop switch mounted on an instrument panel of a vehicle.

BACKGROUND ART

Some recent vehicles are equipped with a smart ignition system that enables engine to start in response to an ID signal wirelessly transmitted from mobile equipment. With the smart ignition system, when the user operates an engine start/stop switch mounted on an in-vehicle instrument panel, a vehicle authentication device transmits a request signal to the mobile equipment. Upon receipt of the request signal, the mobile equipment transmits an own ID signal to the vehicle authentication device. The vehicle authentication device compares an ID code included in the received ID signal with a previously stored ID code, and if both the ID codes match, authenticates the ID code, and enables the engine to start to activate the engine by operating the engine start/stop switch.

Some smart ignition systems have a transponder communication function of communicating with the vehicle authentication device without requiring a power source such as a battery in the mobile equipment, as an auxiliary communication means used when the battery or the like in the mobile equipment becomes exhausted, leading to an uncommunicable state. In the transponder communication function, when the mobile equipment receives starting radio waves transmitted from a coil antenna in the vehicle authentication device, a coil part of a transponder in the mobile equipment generates an electromotive force, and an ID signal is transmitted to the vehicle authentication device by the electromotive force to achieve communication between the vehicle authentication device and the mobile equipment.

The use of the transponder communication function requires the user to operate the engine start/stop switch in the state where the mobile equipment is located near the coil antenna of the vehicle. In order to facilitate the user to recognize the location of the coil antenna, the coil antenna is disposed in the vicinity of the engine start/stop switch.

Regarding the arrangement of the coil antenna, for example, Japanese Patent Publication No. 4705317 proposes that a coil antenna119is disposed on the radial outer side of an operation knob103of a switch device (engine start/stop switch)101as shown in a cutaway side view ofFIG. 11. Japanese Unexamined Patent Application Publication No. 2011-525455 proposes that a coil antenna219is disposed along the inner edge of an operation knob203as shown in a side sectional view ofFIG. 12.

SUMMARY OF THE INVENTION

Problems to be Solved by the Invention

In a switch device such as an engine start/stop switch provided with a coil antenna, to illuminate the outer periphery of an operation knob in a ring form, it is need to dispose the coil antenna in a position other than the ring-like illuminated site. Thus, in locating indicator illumination for indicating an operational position on the outer periphery of the operation knob103in the configuration shown inFIG. 11proposed in Patent Document 1, the indicator illumination needs to be disposed on the outer side of a coil antenna119. This disadvantageously leads to an increase in the outer dimension of a switch device101.

In the configuration shown inFIG. 12proposed in Patent Document 2, because a coil antenna219is disposed along the inner periphery of an operation knob203, the operation knob203has to be made larger than the coil antenna219, disadvantageously increasing the outer dimension of a switch device201.

In consideration of the above-mentioned circumstances, an object of the present invention is to provide a switch device capable of illuminating an operation knob in a ring form without leading to upsizing.

Means for Solving the Problems

To attain the object, according to a first aspect of the present invention, a switch device includes, a holder, an operation knob with a display, the operation knob held in the holder so as to be movable forward and rearward, a ring-like coil antenna that transmits starting radio waves for activating external mobile equipment, and a circuit board on which a wire for connecting the coil antenna to an external electric circuit and a detection means for detecting the operation of the operation knob are disposed. A light source for illuminating the display on the operation knob is disposed on the circuit board. An optically transparent lens is disposed on an outer periphery of the operation knob and transmits a light from the light source so as to illuminate the outer periphery of the operation knob. A slider is accommodated in the holder so as to be movable forward and rearward integrally with the operation knob and has a light guide path for the light source. The coil antenna is integral with the lens member, and the operation knob and the slider are disposed in a center hole of the lens member.

According to a second aspect of the present invention, a first ring part that accommodates the coil antenna and a second ring part that illuminates the outer periphery of the operation knob in a ring form are formed on a front face side of the lens member where the operation knob is disposed, and a cylindrical light guide part opposed to the light source is formed on a rear face side of the lens member.

According to a third aspect of the present invention, a center axis of the first ring part of the lens member is offset from a center axis of the second ring part in the vertical direction, the slider has a through hole into which the first ring part of the lens member is partially inserted, and a center axis of the coil antenna is offset from an operating center axis of the operation knob in the vertical direction.

According to a fourth aspect of the present invention, one side of an outer periphery of the first ring part of the lens member in the radial direction is disposed on an outer side of an outer periphery of the operation knob, and the other side of the outer periphery of the first ring part is disposed on an inner side of the outer periphery of the operation knob.

According to the first and second aspects, because the coil antenna is integrated with the optically transparent lens member, the opaque part caused by the coil antenna can be reduced, suppressing the influence on ring illumination for lighting the outer periphery of the operation knob. This can achieve ring illumination of the operation knob without increasing the size of the switch device.

According to the third aspect, to prevent interference between the slider and the coil antenna to allow forward and rearward movement of the slider, the coil antenna is partially inserted into the through hole in the slider. Such effective use of the through hole as a dead space enables strategic arrangement of the coil antenna, making the switch device compact.

According to the fourth aspect, by offsetting the first ring part such that the one side of the outer periphery of the first ring part in the radial direction of the lens member, which requires a predetermined space, is located on the outer side of the outer periphery of the operation knob, a high degree of flexibility in illumination for the display on the operation knob can be ensured without increasing the outer dimension of the coil antenna.

MODE FOR CARRYING OUT THE INVENTION

An embodiment of the present invention will be described below with reference to appended drawings.

FIG. 1is a perspective view illustrating a switch device according to the present invention,FIG. 2is an exploded perspective view illustrating the switch device,FIG. 3is a front view illustrating the switch device,FIG. 4is a sectional view taken along a line A-A inFIG. 3,FIG. 5is a sectional view taken along a line B-B inFIG. 3,FIGS. 6(a) and 6(b)are sectional views taken along a line C-C inFIG. 4,FIG. 7is a perspective view of a second slider, a rubber contact, and a circuit board,FIG. 8is a perspective view illustrating a lens member and a coil antenna incorporated into the lens member,FIG. 9is a front view illustrating the lens member, andFIG. 10is a sectional view taken along a line D-D inFIG. 9.

The switch device1in accordance with this embodiment is an engine start/stop switch mounted on an instrument panel of a vehicle provided with a smart ignition system, and as shown inFIG. 4andFIG. 5, an operation knob3, a lens member4, a slider5, a second slider6, a rubber contact7, and a circuit board8are incorporated into a substantially cylindrical holder2. The holder2, the operation knob3, the lens member4, the slider5, the second slider6, and the circuit board8are integrally molded using a non-conductive resin, and the rubber contact7is integrally molded using non-conductive rubber. In following description, the left side inFIGS. 4 and 5is defined as a front side, and the right side inFIGS. 4 and 5is defined as the rear side.

As shown inFIG. 2, engagement claws2aare integrally provided to protrude from four places of the outer periphery of a front end of a cylindrical main body2A of the holder2, and rectangular engagement holes2bare formed at four places of the outer periphery of a rear end of the main body2A (only the two holes are shown inFIG. 2). The main body2A of the holder2has a dual-cylinder structure in which a duct-like rectangular guide tube2B is formed at the axial center along the forward and rearward direction, and lens fixing parts2C and2D as curved faces are integrally formed along the forward and rearward direction above and below the guide tube, respectively. Here, guide grooves2care formed in right, left, and lower faces of the guide tube2B along the forward and rearward direction.

As shown inFIG. 2andFIGS. 6(a) and 6(b), a plurality of ribs2dextending in the forward and rearward direction are formed between the main body2A of the holder2and the upper lens fixing part2C to form three duct-like rectangular lens accommodation parts2eextending in the forward and rearward direction, and the lens accommodation parts2eaccommodated respective indicator lenses9as light transparent guide members that are long in the forward and rearward direction (SeeFIG. 4andFIGS. 6(a) and 6(b)).

As shown inFIG. 2andFIG. 4, a cylindrical closed-end cover10having a rectangular cutout hole10a(SeeFIG. 2) is attached to an opening of the rear end of the holder2, and a prismatic closed-end connector11is inserted and held in the cutout hole10aformed in the lower portion of the cover10. Here, as shown inFIG. 2, engagement protrusions10bare protrudingly provided at four places (corresponding to the engagement holes2bof the holder2) of the outer periphery of the cover10(only the three protrusions are shown inFIG. 2) so as to be integral with the cover10, and notched engagement holes10care formed in the left and right sides of the cover10.

As described above, the connector11is positioned with respect to the cover10by fitting engagement protrusions11aprotruding from the left and right sides of the connector11(corresponding to the left and right engagement holes10cof the cover10) into the engagement holes10cformed in both sides of the cover10from the front, and is inserted and held in the cover as shown inFIG. 4. Then, as shown inFIG. 4, by fitting the cover10, in which the connector11is inserted and held, into the inner periphery of the rear end of the main body2A of the holder2, and engaging the four engagement protrusions10bprotruding from the outer periphery with the four the engagement holes2bformed in the outer periphery of the rear end of the main body2A of the holder2, the cover10is attached to the holder2to cover the opening of the rear end of the holder2. In this embodiment, the cover10and the connector11are integrally molded using a non-conductive resin, and eleven metal connection terminals12are horizontally inserted into and supported by the connector11as shown inFIG. 2.

As shown inFIG. 4andFIG. 5, the rubber contact7and the circuit board8, which are bonded to each other, are accommodated between the rear ends of the guide tube2B and the lens fixing parts2C and2D and the front end of the cover10, in the vicinity of the rear end of the holder2.

As shown inFIG. 7in detail, the circuit board8is substantially in the form of a disc, and three LEDs13as light sources are provided at three places of the circuit board8in the upper position in the widthwise center of its front surface (corresponding to the lens accommodation parts2eof the holder2and the indicator lenses9accommodated in the lens accommodation parts2e), one LED14as a light source is disposed at the center of the circuit board8, and four LEDs15as light sources are disposed around the LED14. Fixed contacts16(detection means) are disposed on left and right sides of the LED14on the circuit board8, and two left and right insertion holes8aare formed above the LED14. Insertion holes8bare formed at eleven places on the left, right, and lower sides of the circuit board8(corresponding to the eleven connection terminals12on the connector11), and as shown inFIG. 4, the eleven connection terminals12on the connector11are inserted into the respective insertion holes8band are electrically connected to a wire (wiring pattern) not shown formed on the circuit board8.

Thin bag-like rectangular translucent parts7aprotrude from three circumferential places (corresponding to the LEDs13on the circuit board8) of the upper portion of the rubber contact7, and a laterally-long through hole7bis formed below the translucent parts7a. A thin bag-like rectangular translucent part7cprotrudes from the center of the rubber contact7, which corresponds to the LED14, and switch parts17as detection means are formed on left and right sides of the translucent part7c(corresponding to the two left and right fixed contacts16on the circuit board8). Thin bag-like rectangular translucent parts7dfor transmitting light from the LEDs15are protrudingly provided around the switch parts17(four places corresponding to the four LEDs15on the circuit board8). In order to prevent interference with the connection terminals12on the connector11, bag-like rectangular convex parts7eand7fare protrudingly provided in the lower portion and both sides of the rubber contact7, respectively.

The left and right switch parts17provided on the rubber contact7are in the form of a dome, and have respective movable contacts not shown. When the switch parts17are pressed to bring the movable contacts not shown into contact with the fixed contacts16on the circuit board8as described later, the contacts are brought into conduction, turning on the switch parts17.

The slider5is a member accommodated so as to be movable forward and rearward along the guide tube2B of the holder2, and as shown inFIG. 2, guide rails5aprotrude from three places of left, right, and lower sides of the inner periphery of the slider5(corresponding to the three guide grooves2cof the guide tube2B) in the longitudinal direction (forward and rearward direction) so as to be integral with the slider5. Engagement protrusions5bare formed on left and right sides of the front end of the slider5, and engagement protrusions5care formed on left and right sides of the rear end of the slider5. As shown inFIG. 2, a through hole5dopened to the front, left, and right is formed on the upper portion of the slider5. As shown inFIG. 4andFIG. 5, the guide tube2B of the holder2is inserted into the slider5, and the guide tube2and the slider5constitute a light guide path for guiding light from the LED14on the circuit board8to the operation knob3ahead of the LED14.

As shown inFIG. 4andFIG. 5, the second slider6is attached to the rear end of the slider5. The second slider6is integrally molded into a rectangular frame using a resin as shown inFIG. 7in detail, and rectangular engagement holes6aare formed in both sides (corresponding to the engagement protrusions5cof the slider5). A cylindrical boss6A and a switch operation part6B are integrally formed on each of left and right sides of the rear end of the second slider6, and stop rubbers18shown inFIG. 2are inserted into and fixed at respective circular holes6bformed in the two left and right bosses6A (SeeFIG. 4). The two left and right switch operation part6B are in contact with the left and right switch parts17on the rubber contact7(SeeFIG. 2).

By engaging the left and right engagement holes6awith the left and right engagement protrusions5cat the rear end of the slider5, the second slider6is fixed to the rear end of the slider5as shown inFIG. 4andFIG. 5.

The lens member4is integrally molded using a transparent optically-transparent resin, and as shown inFIG. 8toFIG. 10in detail, includes a flat and non-circular first ring part4A that accommodates a coil antenna19and a cylindrical second ring part4B that illuminates the outer periphery of the operation knob3in a ring form on the front face on which the operation knob3is disposed, and a cylindrical tapered light guide part4C opposed to the LEDs15is formed in the rear of the second ring part4B. A center (gravity center) axis C1of the first ring part4A is offset from a center axis C2of the second ring part4B in the vertical downward direction (SeeFIG. 9). A plurality of slits4aare formed at multiple circumferential places of the light guide part4C in the forward and rearward direction.

The coil antenna19serves to transmit starting radio waves for activating external mobile equipment held by the driver, and is formed by winding an antenna wire19a(SeeFIG. 8) around a groove20a(SeeFIG. 10) formed on the outer periphery of an antenna holder20of the same shape as the coil antenna. Two left and right metal connection terminals21horizontally extend rearward from left and right sides of the upper portion of the antenna holder20, and ends of the antenna wire19aare connected to one ends of the connection terminals21.

In this embodiment, the antenna holder20holding the coil antenna19is incorporated into the first ring part4A of the lens member4at manufacturing of the lens member4. The lens member4in which the antenna holder20and the coil antenna19held by the antenna holder20are incorporated into the first ring part4A is fixed in the holder2as shown inFIG. 4andFIG. 5. Part (flat part) of the first ring part4A penetrates the through hole5dformed in the upper portion of the slider5. In the state where the lens member4is assembled in the holder2in this manner, as shown inFIG. 6(a), a center axis C3of the coil antenna19shaped like a flat ring and the antenna holder20holding the coil antenna19is offset from an operating center axis C4of the operation knob3in the vertical downward direction, and part thereof penetrates the through hole5din the slider5as described above. Describing in more detail, one side (flat upper side inFIGS. 6(a) and 6(b)) of the outer periphery of the coil antenna19in the radial direction is located on the inner side of the outer periphery of the operation knob3, and the other side (arc-like lower side inFIGS. 6(a) and 6(b)) of the outer periphery of the coil antenna19is located on the outer side of the outer periphery of the operation knob3. The coil antenna19and the antenna holder20partially penetrate the through hole5din the slider5to allow forward and rearward movement of the slider5, and the operation knob3and the second slider6that are fixed to the slider5.

In the state where the lens member4is incorporated in the holder2, the two left and right connection terminals21horizontally extending rearward from the antenna holder20pass through the through hole7b(SeeFIG. 4andFIG. 7) in the rubber contact7and are inserted into the two left and right insertion holes8ain the circuit board8. Consequently, the coil antenna19is electrically connected to the circuit board8via the two left and right connection terminals21.

The disc-like operation knob3is fixed to the front end of the slider5, and they slide with the second slider6in the holder2in the forward and rearward direction. Here, as shown inFIG. 2, engagement pieces3A horizontally protrude rearward from two left and right places of the outer periphery of the operation knob3(only one piece is shown inFIG. 2), and the engagement pieces3A have respective rectangular engagement holes3a. Further, as shown inFIG. 1, a character display “ENGINE START STOP” (display) is made on the face of the operation knob3.

The operation knob3is attached to the outer periphery of the front end of the slider5by fitting the left and right engagement pieces3A to the outer periphery of the front end of the slider5and engaging the two left and right engagement protrusions5bprotruding from the outer periphery of the front end of the slider5with the engagement holes3ain the engagement pieces3A. In the state where the three guide rails5aformed on the outer periphery of the slider5are aligned with the three guide grooves2cin the inner periphery of the guide tube2B of the holder2, by fitting the slider5and the second slider6fixed thereto into the holder2from the front, the operation knob3and the slider5thus assembled are held so as to be movable forward and rearward along with the second slider6along the guide grooves2cof the guide tube2B. In this embodiment, as shown inFIG. 4andFIG. 5, operation knob3and the slider5are disposed in a center hole of the lens member4.

When the operation knob3is fitted and fixed to the slider5and accommodated in the holder2as described above, as shown inFIG. 1toFIG. 5, a knob ring22as a transparent resin mold is fitted to the outer periphery of the operation knob3, and a ring-like resin bezel23is fitted and fixed to the outer periphery of the knob ring22using a resin. The outer periphery of the bezel23is covered with a ring-like bezel cover24fixedly fitted to the outer periphery of the front end of the holder2. The bezel cover24is integrally molded into a ring using a non-conductive resin, and rectangular engagement holes24aare formed at four places of the outer periphery (corresponding to the four engagement claws2aof the holder2) (only the two holes are shown inFIG. 2). Accordingly, the bezel cover24is fixed to the outer periphery of the front end of the holder2by fitting the bezel cover24to the outer periphery of the front end of the holder2, and engaging the four engagement claws2aprotruding from the outer periphery of the front end of the holder2with the four engagement holes24ain the bezel cover24.

Alphabets of “OFF”, “ACC”, and ON are displayed at three circumferential places of the upper portion of the bezel23(corresponding to the three lens accommodation parts2eof the holder2and the indicator lenses9accommodated therein (SeeFIG. 6(b)).

Next, the action of the switch device1in accordance with this embodiment as an engine start/stop switch thus configured will be described.

While the driver does not operate the operation knob3, the switch device1is in a non-operating state. In this state, the pair of left and right switch operation parts6B provided at the rear end of the second slider6that slides integrally with the operation knob3do not press the switch parts17on the rubber contact7, and movable contacts not shown on the switch parts17are not in contact with the fixed contacts16on the circuit board8, so that the contacts are in a non-conductive state, turning off the switch parts17.

When the driver presses the operation knob3in this state without pressing on a brake pedal, the operation knob3slides rearward together with the slider5and the second slider6fixed thereto, and the pair of left and right switch operation parts6B formed at the rear end of the second slider6push the switch parts17on the rubber contact7, bringing the movable contacts of the switch parts17into contact with the fixed contacts16on the circuit board8, so that the contacts are brought into conduction and the two switch parts17are simultaneously turned on to energize and activate additional equipment (accessories) such as a radio and a CD. On the other hand, when the driver presses the operation knob3while pressing on the brake pedal, the switch parts17on the rubber contact7are also pressed, bringing the movable contacts into contact with the fixed contacts16on the circuit board8, and the contacts are brought into conduction to turn on the switch parts17.

When the driver presses the operation knob3as described above, the LEDs13on the circuit board8are selectively activated in response to the operation, and light emitted from one of the LEDs transmits through one of the translucent parts7a,7c, and7dof the rubber contact7and then, passes through the indicator lens9and moves forward, lighting the word “OFF”, “ACC”, or “ON” displayed on the bezel23, which indicates which operation the driver performs.

At night and in the similar situations, the LED13on the circuit board8is activated, and illumination light emitted from the LED13passes through the light guide path in the holder2and reaches the operation knob3in front of the LED to light the display “ENGINE START STOP” on the operation knob3. Further, the LEDs15on the circuit board8are activated, and light emitted from the LEDs15is guided through the light guide part4C of the lens member4into the lens member4and reflected inside the lens member4, and is diffused. The light guided into the lens member4illuminates the transparent lens member4itself, and the light from the lens member4transmits through the transparent knob ring22and is emitted to the outside. As a result, at night and in the similar situations, the periphery of the operation knob3is illuminated like a ring.

When the driver presses the operation knob3while pressing on the brake pedal and the two switch parts17on the circuit board8are simultaneously turned on as described above, during stop of the engine, the vehicle authentication device transmits a request signal from an antenna part of a transceiver disposed in a vehicle compartment not shown to the vehicle compartment. Then, a transceiver part in mobile equipment not shown held by the driver receives the request signal, and sends an ID signal to the vehicle authentication device.

Next, the vehicle authentication device compares an ID code included in the ID signal received from the coil antenna19with a previously stored ID code. If the ID codes matches with each other, the ID code is authenticated, and the engine is stated. If the engine is already started, when the two switch parts17of the switch device1are simultaneously turned on, the engine is stopped.

Then, when the driver moves his/her hand off the operation knob3of the switch device1, the operation knob3is returned to an original non-operating position as shown inFIG. 4andFIG. 5by the elastic restoring force of the switch parts17on the rubber contact7and the stop rubbers18, and the switch operation parts6B of the second slider6are separated from the switch parts17on the rubber contact7, turning off the switch parts17. The stop rubbers18contact the holder2when the operation knob3returns to the original non-operating position, preventing the occurrence of a tapping sound.

As described above, with the switch device1in accordance with this embodiment, because the coil antenna19is integrated with the optically transparent lens member4via the antenna holder20, the opaque part caused by the coil antenna19can be reduced, suppressing the influence on ring illumination through the knob ring22for lighting the outer periphery of the operation knob3. This can achieve ring illumination of the rim of the operation knob3without increasing the size of the switch device1.

With the switch device1according to the present invention, to prevent interference between the slider5, and the coil antenna19and the antenna holder20to allow forward and rearward movement of the slider5, the through hole5dis formed in the slider5, and the coil antenna19and the antenna holder20are partially inserted into the through hole5d. Such effective use of the through hole5das a dead space enables strategic arrangement of the coil antenna19and the antenna holder20, making the switch device1compact.

Further, with the switch device1according to the present invention, the first ring part4A can be offset from the second ring part4B such that one side (lower side inFIGS. 6(a)and 6(b)) of the outer periphery of the first ring part4A in the radial direction of the lens member4, which requires a predetermined space, is located on the outer side of the outer periphery of the operation knob3, ensuring a high degree of flexibility in illumination for the display on the operation knob3without increasing the outer dimension of the coil antenna19. Especially, in this embodiment, because the center axis C3of the coil antenna19is offset from the operating center axis C4of the operation knob3in the vertical downward direction, the capability of communication between the coil antenna19and the mobile equipment can be improved in the case where the switch device1is provided in the upper portion of the instrument panel, or the user operates the operation knob3while holding a card-type mobile equipment.

Although the center axis C3of the coil antenna19is offset from the operational center line C4of the operation knob3in the vertical downward direction in the embodiment, the coil antenna19may be offset upward, or to left or right. For example, when the switch device1is provided in the lower portion of the instrument panel, since the mobile equipment is put over the switch device1, so that when the center axis C3of the coil antenna19is offset from the operational center line C4of the operation knob3in the vertical upward direction, the capability of communication between the coil antenna19and the mobile equipment is improved.

Further, although the coil antenna19and the antenna holder20holding the coil antenna19are shaped like a flat noncircular ring in the embodiment, the coil antenna19and the antenna holder20may be elliptical or shaped like a perfect circle ring. Also in these cases, the center axis C3may be offset from or coaxial with the operational center line C4of the operation knob3, achieving the same effect.

The present invention applies to the switch device as the engine start/stop switch in the above description. As a matter of course, however, the present invention can also apply to any other switch devices having similar configurations.

DESCRIPTION OF SYMBOLS

1: Switch device

2A: Main body of holder

2B: Guide tube of holder

2C,2D: Lens fixing part of holder

2a: Engagement claw of holder

2b: Engagement hole of holder

2c: Guide groove of holder

2d: Rib of holder

2e: Lens accommodation part of holder

3A: Engagement piece of operation knob

3a: Engagement hole of operation knob

4: Lens member

4A: First ring part of lens member

4B: Second ring part of lens member

4C: Light guide part of lens member

4a: Slit of lens member

5a: Guide rail of slider

5b,5c: Engagement protrusion of slider

5c: Lens accommodation part of slider

5d: Through hole of slider

6A: Boss of second slider

6B: Switch operation part of second slider

6a: Engagement hole of second slider

6b: Circular hole of second slider

7: Rubber contact

7a: Translucent part of rubber contact

7b: Through hole of rubber contact

7c,7d: Translucent part of rubber contact

7e,7f: Convex part of rubber contact

8: Circuit board

8a,8bInsertion hole of circuit board

10a: Cutout hole of cover

10b: Engagement protrusion of cover

10c: Engagement hole of cover

11a: Engagement protrusion of connector

12: Connection terminal

18: Stop rubber

19a: Antenna wire

20a: Groove of antenna holder

21: Connection terminal

24a: Engagement hole of bezel cover