JP2005123021A - Composite switch unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simplify the structure of a composite switch unit 1 by reducing constructional elements of the composite switch unit 1, and to restrain increase in the size of the composite switch unit 1. <P>SOLUTION: First circular arc-like elongate holes 15 are formed through a surface of a cover 13; second circular arc-like elongate holes 17 are formed through the surface of the cover 15; a first operation knob 31 and a second operation knob 47 are mounted rotatably on the cover; a first switch operating member 37 having a first slide terminal 43 is mounted integrally with first leg parts 33, guided by the elongate holes 15; and second switch operating members 59 each having a second slide terminal 63 are integrally mounted with second leg parts 49 guided by the elongate holes 17. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a composite switch unit that is used in electrical equipment such as a video camera and a digital camera, and that performs a plurality of types of switch operations.

  Electronic devices such as video cameras and digital cameras that are often seen in the market today usually use a composite switch unit for operating multiple types of switches such as a zoom operation and a mode switching operation. As the prior art, there is, for example, the one shown in Patent Document 1, and the specific configuration is as follows.

  That is, the composite switch unit (the rotary electronic component (1) of Patent Document 1) includes a unit base (the base (10) of Patent Document 1). The unit base includes a wiring board (Patent Document 1). Board (20)), and this wiring board has a first switch pattern (switch pattern (23) of Patent Document 1) and a second switch pattern (switch pattern (25) of Patent Document 1). doing.

  The unit base is integrally provided with a lower cover (second case (35) of Patent Document 1) that covers a part of the wiring board, and this lower cover is a block portion that projects sideways (Patent Document). 1 click bullet unit storage part (41)). In addition, the lower cover is integrally provided with an upper cover (first case (110) of Patent Document 1) that covers a part of the wiring board. It has a cylindrical guide part (storage part (111) of Patent Document 1). Further, an arc-shaped guide elongated hole (insertion hole (113) of Patent Document 1) is formed through the surface of the upper cover, and a notch (patent) is formed on the side wall of the upper cover. The notch part (119) of literature 1 is formed.

  The upper cover is rotatably provided with a first operation knob (first rotation knob (130) of Patent Document 1), and the first operation knob is a leg portion guided by the guide slot (patent). It has the fixed arm (135) of Document 1. In addition, a first switch actuating member (a first rotating type object (70) of Patent Document 1) is integrally provided on the leg portion, and the first switch actuating member is disposed on the first switch pattern. It has the 1st sliding terminal (slider (210) of patent document 1) which slides. Here, the first switch actuating member is located in the upper cover.

  A second operation knob (the operation section (55) of Patent Document 1) is rotatably supported on the block portion, and the tip of the second operation knob is disengaged from the notch section. It is inserted in the top cover. In addition, a second switch operating member (a main body (51) of Patent Document 1) is integrally provided at a tip portion of the second operation knob, and the second switch operating member rotates around the guide portion. A second sliding terminal (slider (200) of Patent Document 1) that is supported and slides on the second switch pattern is provided. Here, the second switch actuating member is located in the upper cover and overlaps the first switch actuating member.

  Accordingly, by rotating the first operation knob, the first switch operating member rotates integrally with the first operation knob, and the first sliding terminal slides on the first switch pattern. . Thereby, the electrical connection state of the first switch pattern and the first sliding terminal is switched, and the first type of switch operation can be performed.

Further, by rotating the second operation knob, the second switch operating member rotates integrally with the second operation knob, and the second sliding terminal slides on the second switch pattern. . Thereby, the electrical connection state of the second switch pattern and the second sliding terminal is switched, and the second type of switch operation can be performed.
JP 2003-133104 A

  By the way, in order to provide the composite switch unit with the first operation knob and the second operation knob, as described above, the composite switch unit needs two covers (the lower cover and the upper cover). It is. Therefore, there are problems that the number of constituent members of the composite switch unit is increased, the configuration of the composite switch unit is complicated, and the composite switch unit is enlarged.

  In addition, since the second switch actuating member overlaps the first switch actuating member in the upper cover, a thickness obtained by combining two switch actuating members (the first switch actuating member and the second switch actuating member). It is necessary to make the height in the upper cover higher than the height. Therefore, there is a problem that the thickness of the composite switch unit is increased, which hinders the thickness reduction of the composite switch unit.

In invention of Claim 1, a unit base;
A wiring board provided on the unit base and having a conductive first switch pattern and a conductive second switch pattern;
The first guide is provided integrally with the unit base, and has a circular arc-shaped first guide hole formed through the surface thereof. Further, the first guide has a curvature radius longer than that of the first guide slot. An arc-shaped second guide elongated hole with the same center of curvature as the center of curvature of the elongated hole is formed therethrough, and a cover that covers part or all of the wiring board;
A first operation knob that is rotatably provided on the cover, is configured to locally contact the surface of the cover, and has a first leg that is guided by the first guide slot;
Provided integrally with the first leg, and at least a portion of the first leg is located within the cover and is configured to locally contact the back surface of the cover, and can slide on the first switch pattern. A first switch actuating member having a first sliding terminal;
The cover is rotatably provided, is located outside the first operation knob, is configured to locally contact the surface of the cover, and is guided by the second guide slot. A second control knob having a leg;
The second switch is provided integrally with the second leg, is located outside the first switch actuating member in the cover, and is configured to locally contact the back surface of the cover. And a second switch actuating member having a second sliding terminal slidable on the pattern.

  According to the invention specific matter of claim 1, the arc-shaped second guide having a radius of curvature longer than the radius of curvature of the first guide slot and the same center of curvature as the center of curvature of the first guide slot. In addition to the elongated hole formed through the surface of the cover, the first operating knob has the first leg portion guided by the first guide elongated hole, and the second operating knob includes the first operating knob. Since the second leg portion guided by the two guide elongated holes is provided, two operation knobs (the first operation knob and the second operation knob) can be provided on one cover. In other words, one cover is sufficient to provide the composite switch unit with two operation knobs.

  In addition, since the second switch actuating member is positioned outside the first switch actuating member in the cover, the height in the cover is set to two switch actuating members (the first switch actuating member and the first switch actuating member). It is not necessary to make it larger than the thickness of the two-switch operating member).

  Further, the first operation knob is configured to locally contact the surface of the cover, and the first switch actuating member is configured to locally contact the back surface of the cover. The first operation knob and the first switch operation member are locally supported rotatably on the cover while the cover is sandwiched between the first operation knob and the first switch operation member. Thereby, the rotation of the first operation knob and the first switch operation member is suppressed while suppressing the wear between the first operation knob and the surface of the cover and the wear between the first switch operation member and the back surface of the cover. The operation can be stabilized.

  Similarly, the second operation knob is configured to locally contact the surface of the cover, and the second switch operating member is configured to locally contact the back surface of the cover. The second operation knob and the second switch operation member are locally supported rotatably on the cover while the cover is sandwiched between the second operation knob and the second switch operation member. Thereby, the rotation of the second operation knob and the second switch operation member is suppressed while suppressing the wear between the second operation knob and the surface of the cover and the wear between the second switch operation member and the back surface of the cover. The operation can be stabilized.

  In addition to the above-described operation, the composite switch unit has the following general operation (general operation).

  That is, by rotating the first operation knob, the first switch actuating member rotates integrally with the first operation knob, and the first sliding terminal slides on the first switch pattern. . Thereby, the electrical connection state of the first switch pattern and the first sliding terminal is switched, and the first type of switch operation can be performed.

  Similarly, by rotating the second operation knob, the second switch actuating member rotates integrally with the second operation knob, and the second sliding terminal slides on the second switch pattern. To do. Thereby, the electrical connection state of the second switch pattern and the second sliding terminal is switched, and the second type of switch operation can be performed.

  In the invention described in claim 2, in addition to the specific matters of the invention described in claim 1, the first operation knob has a ring shape or a circular shape, and the second operation knob has a ring shape. The second operation knob is configured to locally contact the back surface or side surface of the first operation knob.

  According to the invention specific matter of the second aspect, in addition to the action of the invention specific matter of the first aspect, the second operation knob is locally in contact with the back surface or the side surface of the first operation knob. Since it comprises, the said 1st operation knob is locally supported by the said 2nd operation knob other than the said cover so that rotation is possible. Accordingly, it is possible to further stabilize the rotation operation of the first operation knob while suppressing wear of the first operation knob and the second operation knob.

In the invention according to claim 3, in addition to the matters specifying the invention according to claim 1 or 2, the wiring board is electrically conductive in addition to the first switch pattern and the second switch pattern. A third switch pattern having an insertion hole formed through the surface of the cover,
A dome-shaped third switch actuating member that is located in the cover and has a top portion that can be reversed and returned by elastic deformation, and has a contact terminal that can contact the third switch pattern by a reversing operation of the top portion. When,
A ring-shaped second operating knob is held at the center of the second operation knob so as not to be detached, and has a rod portion that is inserted into the insertion hole and contacts the top of the third switch operating portion, and the third switch operating And an operation button for reversing the top of the member.

  According to the invention specific matter of claim 3, in addition to the action of the invention specific matter of claim 1 or 2, the third switch actuating member is pressed by the operation button by pressing the head of the operation button. The contact terminal is brought into contact with the third switch pattern by reversing the top of the switch by elastic deformation. Thereby, the electrical connection state between the third switch pattern and the contact terminal is switched from OFF to ON.

  Further, the contact button is released from the third switch pattern by releasing the operation button and returning the top of the third switch actuating member by elastic deformation. As a result, the electrical connection state between the third switch pattern and the contact terminal is switched from ON to OFF.

  According to the invention according to any one of claims 1 to 3, since the single switch is sufficient to provide the composite switch unit with two operation knobs, The number of constituent members can be reduced to simplify the configuration of the composite switch unit, and the size of the composite switch unit can be suppressed.

  Further, since it is not necessary to make the height in the cover larger than the thickness of the two switch actuating members, the thickness of the composite switch unit can be reduced to facilitate the thinning of the composite switch unit. .

  Furthermore, the rotation operation of the first operation knob and the first switch operation member is suppressed while suppressing the wear of the first operation knob and the surface of the cover and the wear of the first switch operation member and the back surface of the cover. The second operation knob and the second switch actuating member while stabilizing the wear of the second operation knob and the front surface of the cover and the wear of the second switch actuating member and the back surface of the cover. Therefore, it is possible to improve the operability of the composite switch unit and improve the quality of the composite switch unit while improving the life of the composite switch unit.

  According to the second or third aspect of the invention, in addition to the effects described above, the rotation operation of the first operation knob while suppressing wear of the first operation knob and the second operation knob. Therefore, the quality of the composite switch unit can be further improved.

  The first embodiment of the present invention will be described with reference to FIGS.

  1 is a view taken along line II in FIG. 3, FIG. 2 is a view taken along line II-II in FIG. 3, and FIG. 3 is a composite switch unit according to an embodiment of the invention. 4 is a plan view of the composite switch unit according to the embodiment of the present invention excluding the unit base, and FIG. 5 is a plan view of the cover according to the embodiment of the present invention. FIG. 6 shows a flexible printed circuit board according to the embodiment of the invention. Note that “front and rear” refers to the right and left in FIGS. 1 to 5 with reference to the orientation of the drawings when the patent publication is published.

  As shown in FIG. 3, the composite switch unit 1 according to the embodiment of the first invention is used for electric equipment such as a video camera and a digital camera, and is used for switch operation (one of input operations). It is a part.

  As shown in FIGS. 3 and 6, the composite switch unit 1 includes a plate-like unit base 3, and this unit base 3 is made of metal. The unit base 3 is provided with a flexible printed circuit board 5. The flexible printed circuit board 5 has a conductive first switch pattern 7, a conductive second switch pattern 9, and a conductive first switch pattern 7. Three switch patterns 11 are provided.

  The unit base 3 is integrally provided with a cover 13 that covers a part of the flexible printed circuit board 5, and the cover 13 is made of resin. The cover 13 is provided on the unit base 3 by heat caulking, so that the flexible printed circuit board 5 is also provided integrally with the unit base 3. The unit base 3 has a plurality of holes (not shown) for performing heat caulking with the cover 13.

  As shown in FIGS. 1, 2, and 4, a pair of arc-shaped first guide slots 15 are formed through the surface of the cover 13 (upper surface in FIGS. 1 and 2). The pair of first guide slots 15 are spaced apart so as to be symmetrical. Further, on the surface of the cover 13, a pair of arc-shaped second guide lengths having a radius of curvature longer than the radius of curvature of the first guide slot 15 and the same center of curvature as the center of curvature of the second guide slot 17. A hole 17 is formed so as to penetrate therethrough, and the pair of second guide long holes 17 are separated so as to have a symmetrical relationship. Note that, between the first guide elongated hole 15 and one second guide elongated hole 17 on the surface of the cover 13, and the other first guide elongated hole 15 and the other second guide elongated hole 17 on the surface of the cover 13. A partition wall 19 extending in the vertical direction from the cover 13 is formed between each.

  An insertion hole 21 is formed between the pair of first guide long holes 15 on the surface of the cover 13, and an arc shape with the same center of curvature as a base point is formed on the front side of the insertion hole 21 on the surface of the cover 13. The insertion long hole 23 is formed so as to penetrate therethrough. Further, a plurality of locking bosses 25 for locking along the insertion long holes 23 are formed on the back surface of the cover 13 (the lower surface in FIGS. 1 and 2), and the same curvature is provided on the surface of the cover 13. A plurality of clicked insertion holes 27 for clicks arranged in a circular arc shape with the center as a base point are formed so as to penetrate therethrough. Furthermore, the surface of the cover 13 has a plurality of arc-shaped rail portions 29.

  As shown in FIGS. 1 to 3, the cover 13 is provided with a ring-shaped first operation knob 31 that is rotatable (the center of rotation is the same as the center of curvature of the first guide slot 15). The first operation knob 31 is made of resin. In addition, on the back side (lower side in FIGS. 1 and 2) of the first operation knob 31, there is a pair of first leg portions 33 respectively guided by the pair of first guide slots 15. An arc-shaped flange that locally contacts the surface of the cover 13 is provided outside the first leg 33 on the back side of the first operation knob 31 so that the one operation knob 31 locally contacts the surface of the cover 13. A portion 35 is provided.

  The pair of first leg portions 33 are integrally provided with a substantially round first switch actuating member 37, which is made of resin, and is a first switch actuating member. A part of 37 is located in the cover 13. In addition, a cylindrical support portion 39 inserted through the insertion slot 23 is provided at the center of the first switch operating member 37, and the first switch operating member 37 locally contacts the back surface of the cover 13. As described above, on the front side (the upper side in FIGS. 1 and 2) of the first switch operating member 37, an arcuate flange portion 41 that locally contacts the back surface of the cover 13 is provided. Further, on the back side (lower side in FIGS. 1 and 2) of the first switch operating member 37, a metal first sliding terminal 43 that can slide on the first switch pattern 7 is provided.

  The support 39 is provided with a torsion coil spring 45, and this torsion coil spring 45 returns the first knob 31 to the neutral position when the first operation knob 31 rotates from the neutral position. It is to be energized as follows.

  As shown in FIGS. 1 and 2, the cover 13 is provided with a ring-shaped arc-shaped second operation knob 47 that is rotatable (the center of rotation is the same as the center of curvature of the first guide slot 15). The second operation knob 47 is located outside the first operation knob 31 and is made of resin. Further, on the back side of the second operation knob 47 (lower side in FIGS. 1 and 2), there is a pair of second leg portions 49 respectively guided to the pair of second guide long holes 17. 2 The outer surface of the second leg 49 on the back side of the second operation knob 47 is in contact with the rail portion 29 so that the operation knob 47 is locally in contact with the surface of the cover 13 (in other words, the surface of the cover 13 A flange portion 51 that is in local contact with each other.

  Furthermore, a ring-shaped rail portion 53 protruding upward is formed on the second operation knob 47 so that the second operation knob 47 locally contacts the back surface of the first operation knob 31. A button housing 55 is provided on the edge side of the second operation knob 47, and an escape recess 57 is formed on the reverse side of the second operation knob 47 on the opposite side of the button housing 55. Instead of the second operation knob 47 being configured to locally contact the back surface of the first operation knob 31, the second operation knob 47 is locally contacted to the side surface of the first operation knob 31. It may be configured.

  As shown in FIGS. 1, 2, and 4, a pair of second legs 49 is integrally provided with an arc-shaped second switch operating member 59, and the second switch operating member 59 is It is located outside the first switch actuating member 37 in the cover 13 and is made of resin. The second switch actuating member 59 has a flange portion 61 that locally contacts the back surface of the cover 13 on the front side of the first switch actuating member 37 so that the back surface of the cover 13 is locally contacted. Yes. Further, a second sliding terminal 63 made of metal that can slide on the second switch pattern 9 is provided on the back side (lower side in FIGS. 1 and 2) of the second switch operating member 59.

  The second operation knob 47 is provided with a click operating member 65, and this click operating member 65 is made of a metal plate. In addition, a click loose projection 67 that can be loosely fitted into and removed from the click loose hole 27 by elastic deformation is provided at the center of the click actuating member 65. Here, when the click loose fitting protrusion 67 disengages from the click loose fit hole 27, a part of the click actuating member 65 (the vicinity of the click loose fitting protrusion 67) escapes into the escape recess 57 (entrance). To be configured). In the embodiment of the first invention, the entire click actuating member 65 is elastically deformed, but only the click loose fitting protrusion 67 may be elastically deformed.

  One end portion of the lock spring 69 is integrally connected to one second leg portion 49, and the other end portion of the lock spring 69 is integrally connected to the other second leg portion 49. Here, the lock spring 69 is made of a metal plate, and is configured so that the entire lock spring 69 can be elastically deformed.

  An engagement piece 71 is provided at the center of the lock spring 69, and the engagement piece 71 is formed in a stepped shape so as to protrude toward the back side of the cover 13. In 71, a locking engagement hole 73 that can be engaged with and disengaged from the locking engaged boss 25 is formed. In the embodiment of the first invention, the locking engagement hole 73 is formed to penetrate, but the locking engagement hole 73 is not necessarily formed to penetrate. Further, a pressed piece 75 is integrally formed at the tip of the engaging piece 71, and a connecting hole 77 is formed in the pressed piece 75. Here, when the click loosely fitting projection 67 is loosely fitted into any of the clicked loosely fitted holes 27, the lock engaging holes 73 can be engaged with any of the lockable engaged bosses 25. Has been.

  The button accommodating portion 55 accommodates a release button 79 that presses the pressed piece 75 toward the unit base 3, and the release button 79 is made of resin. The base end portion of the release button 79 is connected to the pressed piece 75 through the connection hole 77, and the head of the release button 79 protrudes from the button housing portion 55.

  As shown in FIGS. 1, 2, and 6, the flexible printed circuit board 5 is provided with a dome-shaped third switch operating member 81, and the third switch operating member 81 is located in the cover 13. It is. Further, the top of the third switch operating member 81 is configured to be able to be reversed and returned by elastic deformation, and the third switch operating member 81 has a contact terminal 83 that can contact the third switch pattern 11.

  An operation button 85 for reversing the top of the third switch actuating member 81 is held at the center of the second operation knob 31 so as not to be detached. The operation button 85 is made of resin. Further, the operation button 85 has a rod portion 87 that is inserted into the guide portion 39 (in other words, inserted into the insertion hole 21 via the guide portion 39) and contacts the top portion of the third switch operating member 81. ing. Further, in order to make the operation button 85 undetachable, a flange-like stopper 89 that can abut against the peripheral edge of the opening 31H of the first operation knob 31 from the lower side is formed on the outer periphery of the operation button 85. .

  The operation of the embodiment of the invention will be described based on the above-described invention-specific matters of the composite switch unit 1.

  An arcuate second guide slot 17 having a radius of curvature longer than the radius of curvature of the first guide slot 15 and having the same center of curvature as the center of curvature of the first guide slot 15 penetrates the surface of the cover 13. In addition to being formed, the first operation knob 31 has the first leg portion 33 guided to the first guide elongated hole 15, and the second operation knob 47 is guided to the second guide elongated hole 17. Since the portion 49 is provided, two operation knobs (the first operation knob 31 and the second operation knob 47) can be provided on one cover 13. In other words, one cover 13 is sufficient to provide the composite switch unit 1 with the two operation knobs 31 and 47.

  Further, since the second switch actuating member 59 is located outside the first switch actuating member 37 in the cover 13, the height in the cover 13 is set to two switch actuating members (the first switch actuating member 37 and the second switch actuating member 37). There is no need to make the switch actuating member 59) thicker.

  Further, on the outer side of the first leg portion 33 on the back side of the first operation knob 31, there is a flange portion 35 that locally contacts the surface of the cover 13, and on the front side of the first switch operating member 37. Since the flange portion 41 that locally contacts the back surface of the cover 13 is provided, the first operation knob 31 and the first switch operation are performed while the cover 13 is sandwiched between the first operation knob 31 and the first switch operation member 37. The member 37 is locally supported by the cover 13 so as to be rotatable. Thereby, the rotation of the first operation knob 31 and the first switch operation member 37 is suppressed while suppressing the wear between the first operation knob 31 and the surface of the cover 13 and the wear between the first switch operation member 37 and the back surface of the cover 13. The operation can be stabilized.

  Similarly, on the outer side of the second leg portion 49 on the back side of the second operation knob 47, there is a flange portion 51 that locally contacts the surface of the cover 13, and the front side of the second switch operating member 59 ( 1 and 2) has a flange portion 61 that locally contacts the back surface of the cover 13, so the second operation knob 47 and the second switch actuating member 59 sandwich the cover 13 while The two operation knob 47 and the second switch actuating member 59 are locally supported by the cover 13 so as to be rotatable. Thereby, the rotation of the second operation knob 47 and the second switch operation member 59 is suppressed while suppressing the abrasion between the second operation knob 47 and the front surface of the cover 13 and the wear between the second switch operation member 59 and the back surface of the cover 13. The operation can be stabilized.

  In particular, since the ring-shaped rail portion 53 is formed on the second operation knob 47, the first operation knob 31 is locally supported rotatably on the second operation knob 47 in addition to the cover 13. Accordingly, it is possible to further stabilize the rotational operation of the first operation knob 31 while suppressing wear of the first operation knob 31 and the second operation knob 47.

  A plurality of types of switch operations and the like by the composite switch unit 1 are performed as follows.

  When operating the 1st operation knob 31 grade | etc., And performing 1st type switch operation, it carries out as follows.

  That is, the first switch operating member 37 rotates integrally with the first operation knob 31 by rotating from the neutral position against the urging force of the torsion coil spring 45 while pressing the first operation knob 31. The first sliding terminal 43 slides on the first switch pattern 7. Thereby, the electrical connection state of the 1st switch pattern 7 and the 1st sliding terminal 43 can be switched, and a 1st type switch operation can be performed.

  When the presser state of the first operation knob 31 is released, the first operation knob 31 can be rotated by the urging force of the torsion coil spring 45 to return to the neutral position.

  When the second operation knob 47 or the like is operated to perform the second type of switch operation or the like, it is performed as follows.

  That is, by pressing the head of the release button 79 and pressing the pressed piece 75 toward the unit base 3 by the release button 79, the entire lock spring 69 is elastically deformed toward the unit base 3 side. As a result, the lock engagement hole 73 is detached from the appropriate lock engaged boss 25, the locked state of the second operation knob 47 is released, and the second operation knob 47 can be rotated with respect to the cover. It can be in a free state.

  Here, since the engagement piece 71 is formed in a stepped shape so as to protrude toward the back side of the cover 13, the lock engagement hole 73 is locked even if the elastic deformation amount of the entire lock spring 69 is small. It can be easily detached from the engaged boss 25. Further, since the pressed piece 75 is integrally formed at the distal end portion of the engaging piece 71, the locking engagement hole 73 is pushed from the locking engaged boss 25 with good responsiveness by pressing the head of the release button 79. Can be withdrawn.

  Then, by rotating the second operation knob 47 while pressing the head of the release button 79, the click actuating member 65 is integrally rotated, and the click loose projection 67 is elastically deformed and the predetermined click click is made. The second switch operating member 59 rotates integrally with the second operation knob 47 and the second sliding terminal 63 slides on the second switch pattern 9 while loosely fitting into the play-fit hole 27. Thereby, while obtaining a click feeling, the electrical connection state of the second switch pattern 9 and the second sliding terminal 63 can be switched to perform the second type of switch operation (one of the input operations). .

  Further, under the state in which the click loose projection 67 is loosely fitted in the predetermined click free hole 27, the pressing state by the release button 79 is released, so that the entire lock spring 69 is separated from the unit base 3. It is elastically deformed to return to the original position with respect to the second switch actuating member 59. As a result, the locking engagement hole 73 can be engaged with the predetermined locking engaged boss 25, and the second operation knob 47 can be locked with respect to the cover 13.

  Here, the cover 13 is formed with an insertion long hole 23 and a plurality of locking engaged bosses 25, and the entire lock spring 69 is configured to be elastically deformable. The lock spring 69 includes the pressed piece 75 and the locking piece. Since the composite switch unit 1 includes the lock spring 69 in addition to the release button 79 because the engagement hole 73 is provided, the second operation knob 47 can be set to the locked state / free state as described above.

  When operating the operation button 85 or the like to perform the third type switch operation or the like, the operation is performed as follows.

  That is, the contact terminal 83 is brought into contact with the third switch pattern 11 by pressing the head of the operation button 85 and causing the top of the third switch operating member 81 to be reversed by elastic deformation by the operation button 85. Thereby, the electrical connection state between the third switch pattern 11 and the contact terminal 83 is switched from OFF to ON.

  Further, by releasing the pressing state of the operation button 85 and returning the top portion of the third switch operating member 81 by elastic deformation, the contact terminal 83 is separated from the third switch pattern 11. Thereby, the electrical connection state between the third switch pattern 11 and the contact terminal 83 is switched from ON to OFF.

  As described above, according to the embodiment of the present invention, since the composite switch unit 1 is provided with the two operation knobs 31 and 47 with one cover 13, the components of the composite switch unit 1 are reduced, The configuration of the composite switch unit 1 can be simplified, and an increase in size of the composite switch unit 1 can be suppressed.

  Moreover, since it is not necessary to make the height in the cover 13 larger than the thickness of the two switch operation members 37 and 59, the thickness of the composite switch unit 1 is reduced, and the thickness reduction of the composite switch unit 1 is promoted. be able to.

  Further, the rotation operation of the first operation knob 31 and the first switch operation member 37 is suppressed while suppressing the abrasion between the first operation knob 31 and the surface of the cover 13 and the wear of the first switch operation member 37 and the back surface of the cover 13. The second operation knob 47 and the second switch actuating member 59 are suppressed while the wear between the second operation knob 47 and the surface of the cover 13 and the wear between the second switch actuating member 59 and the back surface of the cover 13 are suppressed. Therefore, it is possible to improve the operability of the composite switch unit 1 and improve the quality of the composite switch unit 1 while improving the life of the composite switch unit 1. In particular, since the rotation operation of the first operation knob 31 can be further stabilized while suppressing the wear of the first operation knob 31 and the second operation knob 47, the quality of the composite switch unit 1 can be further improved. Can do.

  Note that the present invention is not limited to the description of the above-described embodiment of the invention, and can be implemented in various other modes by making appropriate modifications.

FIG. 4 is a view taken along line II in FIG. 3. It is the figure along the II-II line in FIG. It is a top view of the composite switch unit concerning embodiment of invention. It is the figure seen from the back side of the composite switch unit concerning embodiment of the invention except a unit base. It is a top view of the cover concerning an embodiment of the invention. It is a figure which shows the flexible printed circuit board concerning embodiment of invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Composite switch unit 3 Unit base 5 Flexible printed circuit board 7 1st switch pattern 9 2nd switch pattern 11 3rd switch pattern 13 Cover 15 1st guide long hole 17 2nd guide long hole 21 Insertion hole 31 1st operation knob 33 First leg portion 35 Flange portion 37 First switch operation member 41 Flange portion 43 First sliding terminal 47 Second operation knob 49 Second leg portion 51 Flange portion 79 Operation button 81 Third switch operation member 83 Contact terminal 85 Operation button

Claims (3)

Unit base,
A wiring board provided on the unit base and having a conductive first switch pattern and a conductive second switch pattern;
The first guide is provided integrally with the unit base, and has a circular arc-shaped first guide hole formed through the surface thereof. Further, the first guide has a curvature radius longer than that of the first guide slot. An arc-shaped second guide elongated hole with the same center of curvature as the center of curvature of the elongated hole is formed therethrough, and a cover that covers part or all of the wiring board;
A first operation knob that is rotatably provided on the cover, is configured to locally contact the surface of the cover, and has a first leg that is guided by the first guide slot;
Provided integrally with the first leg, and at least a portion of the first leg is located within the cover and is configured to locally contact the back surface of the cover, and can slide on the first switch pattern. A first switch actuating member having a first sliding terminal;
The cover is rotatably provided, is located outside the first operation knob, is configured to locally contact the surface of the cover, and is guided by the second guide slot. A second control knob having a leg;
The second switch is provided integrally with the second leg, is located outside the first switch actuating member in the cover, and is configured to locally contact the back surface of the cover. And a second switch actuating member having a second sliding terminal slidable on the pattern.   The first operation knob has a circular shape or a ring shape, and the second operation knob has a ring shape, so that the second operation knob is locally in contact with a back surface or a side surface of the first operation knob. The composite switch unit according to claim 1, wherein the composite switch unit is configured. The wiring board has a conductive third switch pattern in addition to the first switch pattern and the second switch pattern, and an insertion hole is formed through the surface of the cover.
A dome-shaped third switch actuating member located in the cover, the top portion of which is configured to be reversible by elastic deformation, and having a contact terminal that can contact the third switch pattern by a reversing operation of the top portion; ,
A ring-shaped second operating knob that is held in a non-detachable manner at the center and has a rod portion that is inserted into the insertion hole and contacts the top of the third switch operating portion; The composite switch unit according to claim 2, further comprising an operation button for inverting the top of the member.

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