JP6057256B2 - Rotation detector - Google Patents

Description

  The present invention relates to a rotation detection device having an operation unit that can be rotated along the outer periphery of a cylindrical housing, and in particular, rotation detection applied to an in-vehicle knob switch called a swingable stalk switch or the like. Relates to the device.

  Generally, a vehicle-mounted knob switch called a stalk switch for controlling the operation of a wiper, a headlight or the like is disposed in the vicinity of a steering column of an automobile.

  As a conventional example of this in-vehicle knob switch, Patent Document 1 proposes an in-vehicle knob switch 900 as shown in FIG. FIG. 11 is an exploded perspective view of a vehicle-mounted knob switch 900 according to a conventional example. An in-vehicle knob switch 900 shown in FIG. 11 includes a cylindrical housing 901 constituting a part of the combination switch, a holder 902 housed and held in the housing 901, and a circuit board 903 fixed to the holder 902. Then, various electric parts such as a push switch 912 and a slide switch mounted on the circuit board 903, a rotating body 904 in which the operation ring portion 905 and the cylindrical drive portion 906 are integrated, and a push switch 912 are pressed. An operation key 907 and an operation knob 908 for swinging operation are provided.

  In the vehicle-mounted knob switch 900 configured as described above, when the user rotates the operation ring unit 905, the cylindrical drive unit 906 rotates integrally with the operation ring unit 905, and the cylindrical drive unit 906 has a spiral shape. The slider 915 engaged with the hole 906b is interlocked with the tip end portion of the hanging piece 915b. That is, as the rotating body 904 (cylindrical driving unit 906) rotates, the inner wall surface of the spiral hole 906b drives the hanging piece 915b, so that the slider 915 moves linearly. As a result, the contact position between the slider 915a attached to the slider 915 and the slide switch fixed contact formed on the lower surface of the circuit board 903 changes, and the electric power corresponding to the rotation operation of the operation ring portion 905 is changed. A signal is output from the circuit board 903 to an external circuit, and rotation detection is suitably performed.

JP 2008-192559 A

  However, in the configuration of the conventional example, the cam groove of the spiral hole 906b of the cylindrical drive unit 906 and the hanging piece 915b of the slider 915 engaged with the spiral hole 906b are used to convert the rotational motion into a linear motion. Therefore, it has a complicated structure. For this reason, the accumulated dimensional tolerances of each component may cause rattling between the spiral hole 906b and the hanging piece 915b, and there is a risk that the rattling may affect the operational feeling.

  The present invention solves the above-described problems, and an object thereof is to provide a rotation detection device in which the influence on the operational feeling due to rattling is reduced.

  In order to solve this problem, the rotation detection device of the present invention includes a rotating member having a cylindrical part that is rotated by an operator, a holder member inserted through the cylindrical part of the rotating member, A rotation detecting device that is held by the holder member and detects rotation of the rotating member, wherein the holder member has a first plane substantially parallel to the rotation axis of the rotating operation. And a base portion having a second plane substantially orthogonal to the first plane, the rotation detecting means is disposed along the second plane, and the rotating member faces the center of the cylindrical portion. An extending portion formed by extending and a projecting portion formed by projecting from the extending portion along the rotational axis from a position through which the rotational shaft penetrates the extending portion, and the rotating member When the rotating member is disposed on the holder member, the rotation detecting means While being arranged so as to cover the projection is connected to the rotation detecting means, is characterized by transmitting the rotation of said rotary member to said rotation detecting means.

  According to this, since the rotation detection device of the present invention has a simple configuration capable of directly transmitting the rotation of the rotation member to the rotation detection means, rattling of the rotation member is reduced. Accordingly, it is possible to provide a rotation detection device in which the influence on the operational feeling due to rattling is reduced.

  Further, in the rotation detection device of the present invention, the pedestal portion corresponding to the position of the extending portion has a protruding portion protruding from the first plane, and the extending portion is formed by the rotating operation of the rotating member. The installation portion and the protruding portion are in contact with each other.

  According to this, the projecting portion of the holder member receives the rotating operation of the rotating member. For this reason, compared with receiving on the 1st plane of the base part of a holder member, the area (area to contact | abut) to receive can be made small. Thereby, the sound at the time of contact can be reduced, and the operator's operational feeling can be further improved.

  Further, in the rotation detecting device of the present invention, when the rotating member is disposed on the holder member, a stepped portion in which a plurality of concave portions and convex portions are alternately provided is provided inside the cylindrical portion. The holder member formed is provided with a contact member that is urged toward the stepped portion at a position facing the stepped portion.

  According to this, as the rotating member rotates, the stepped portion moves while contacting the contact member. As a result, when the contact member moves over the convex part and moves to the concave part, it makes a rustling sound and gives the operator a crisp operation feeling, further increasing the operator's operational feeling. Can be improved.

  In the rotation detection device of the present invention, an angle with the rotation axis in the formation range of the stepped portion is substantially the same as a rotation angle of the rotation operation.

  According to this, the stepped portion and the contact member can be brought into contact with each other only in the range of the rotation operation of the rotation member. For this reason, while being able to always contact a level | step-difference part and a contact member, rotation operation | movement can be controlled at the both ends of a formation range. As a result, it is possible to always give a crisp operation feeling to the operator, and it is possible to prevent an excessive rotation operation such as excessive rotation.

  Since the rotation detection device of the present invention has a simple configuration capable of directly transmitting the rotation of the rotation member to the rotation detection means, rattling of the rotation member is reduced. Accordingly, it is possible to provide a rotation detection device in which the influence on the operational feeling due to rattling is reduced.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure explaining the rotation detection apparatus of 1st Embodiment of this invention, Comprising: Fig.1 (a) is a perspective view of the vehicle-mounted knob switch to which a rotation detection apparatus is applied, FIG.1 (b) It is a disassembled perspective view of a vehicle-mounted knob switch. It is a figure explaining the rotation detection apparatus of 1st Embodiment of this invention, Comprising: Fig.2 (a) is an expansion exploded perspective view of the P section shown to Fig.1 (a), FIG.2 (b) FIG. 3 is an assembled view (perspective view) of FIG. FIGS. 3A and 3B are diagrams illustrating a rotation detection device according to a first embodiment of the present invention, in which FIG. 3A is a top view as viewed from the Z1 side in FIG. 2B, and FIG. It is the top view which omitted the rotation member of 3 (a). 4A and 4B are diagrams for explaining the rotation detection device according to the first embodiment of the present invention, in which FIG. 4A is a side view seen from the Y2 side in FIG. 3A, and FIG. It is the side view seen from the Y2 side of 3 (b). It is a figure explaining the rotation detection apparatus of 1st Embodiment of this invention, Comprising: It is sectional drawing in the VV line shown to Fig.3 (a). It is a figure explaining the rotation member of the rotation detection apparatus of 1st Embodiment of this invention, Comprising: Fig.6 (a) is an upper perspective view seen from the X1 direction side top shown in FIG.1 (b), FIG.6 (b) is the downward perspective view seen from the downward direction of the X1 direction side shown in FIG.1 (b). It is a figure explaining the other rotating member of the rotation detection apparatus of 1st Embodiment of this invention, Comprising: Fig.7 (a) is an upper perspective view seen from the X2 direction side top shown to FIG.1 (b). FIG. 7B is a lower perspective view seen from the lower side of the X2 direction side shown in FIG. It is a figure explaining the holder member of the rotation detection apparatus of 1st Embodiment of this invention, Comprising: Fig.8 (a) is the upper perspective view seen from the X2 direction side upper side shown in FIG.1 (b), FIG. 8B is an upper perspective view as viewed from above the X1 direction side shown in FIG. It is a figure explaining the rotation detection apparatus of 1st Embodiment of this invention, Comprising: It is sectional drawing in the IX-IX line shown to Fig.3 (a). It is a figure explaining the rotation detection apparatus of 1st Embodiment of this invention, Comprising: Fig.10 (a) is the front view seen from the X2 side of FIG.2 (b), FIG.10 (b) is a figure. It is the front view which rotated the rotation member clockwise from the front view shown to 10 (a). It is a disassembled perspective view of the vehicle-mounted knob switch concerning a prior art example.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment]
FIG. 1 is a diagram for explaining a rotation detection device 101 according to a first embodiment of the present invention. FIG. 1A is a perspective view of a vehicle-mounted knob switch N501 to which the rotation detection device 101 is applied. FIG. 1B is an exploded perspective view of the on-vehicle knob switch N501.

  The rotation detection device 101 according to the first embodiment of the present invention is applied to a vehicle-mounted knob switch N501 shown in FIG. Further, the in-vehicle knob switch N501 shown in FIG. 1A includes an operation knob N510 that is operated by an operator, and a main body N550 that supports the operation knob N510 so as to be swingable.

  As shown in FIG. 1B, the operation knob N510 includes a rotation detection device 101 having a rotation member 3 that performs a rotation operation, and a flexible printed circuit board (FPC) electrically connected to the rotation detection device 101. Flexible printed circuits) 515 and a pair of housings (511, 521) that house a part of the holder member H1 of the rotation detection device 101. Further, as shown in FIG. 1B, the main body portion N550 includes a swing member 553 that supports the operation knob N510 so as to be swingable, a main body side case 557 that houses the swing member 553, and a main body side. Cover (558a, 558b). In FIG. 1B, only a part of the swing member 553 is shown, and detailed components of the swing member 553 are not shown.

  The in-vehicle knob switch N501 is configured to receive an input operation in response to a swing operation of the operation knob N510 by the operator, and to perform an input operation in response to a rotation operation of the rotating member 3 by the operator. .

  FIG. 2 is a diagram for explaining the rotation detection device 101 according to the first embodiment of the present invention. FIG. 2A is an enlarged exploded perspective view of a P portion shown in FIG. FIG. 2B is an assembled view (perspective view) of FIG. FIG. 3 is a diagram for explaining the rotation detection device 101 according to the first embodiment of the present invention. FIG. 3A is a top view seen from the Z1 side in FIG. FIG. 3B is a top view in which the rotating member 3 in FIG. 4 is a diagram for explaining the rotation detection device 101 according to the first embodiment of the present invention. FIG. 4 (a) is a side view seen from the Y2 side in FIG. 3 (a), and FIG. b) is a side view seen from the Y2 side in FIG.

  As shown in FIGS. 2 to 4, the rotation detection device 101 according to the first embodiment of the present invention includes a rotating member 3 (3 </ b> A, 3 </ b> B) that is rotated by an operator, and a holder inserted through the rotating member 3. A member H1 and rotation detecting means 5 (5A, 5B) for detecting the rotation of the rotating member 3 are provided. In addition, the rotation detecting device 101 includes a wiring board (not shown) that is electrically connected between the rotation detecting means 5 and the flexible printed circuit board 515, and between the rotating member 3A and the rotating member 3B. And a ring-shaped spacer member 19 disposed on the surface.

  FIG. 5 is a diagram for explaining the rotation detection device 101 according to the first embodiment of the present invention, and is a cross-sectional view taken along the line V-V shown in FIG. FIG. 6 is a diagram for explaining the rotation member 3A of the rotation detection device according to the first embodiment of the present invention. FIG. 6A is an upper view as viewed from the X1 direction side shown in FIG. 6 is a perspective view, and FIG. 6B is a lower perspective view seen from the lower side of the X1 direction side shown in FIG. FIG. 7 is a view for explaining another rotating member 3B of the rotation detecting device according to the first embodiment of the present invention. FIG. 7A is a top view of the X2 direction side shown in FIG. FIG. 7B is a lower perspective view seen from below in the X2 direction side shown in FIG. 1B.

  The rotation member 3 of the rotation detection device 101 includes two rotation members 3A and 3B, and an injection molding method using a synthetic resin material such as polybutylene terephthalate (PBT) is illustrated in FIG. As shown in FIG. 6 and FIG. 7, both are formed in the shape which has the cylindrical cylindrical part 3s. Further, as shown in FIGS. 6B and 7B, the rotating member 3 (3A, 3B) is formed in a fan-shaped extending portion 13 that extends toward the center of the cylindrical portion 3s. (13A, 13B) and protrusions 33 (33A, 33B) provided on the distal end side of the extending portion 13 are configured. Then, the rotating member 3 is rotated by the operator, and the rotating operation of the rotating member 3 is performed. In the first embodiment of the present invention, the cylindrical portion 3s has a simple circular shape, but is limited to a simple circular shape as long as the rotational operation of the rotating member 3 is not impaired. is not. For example, it may be a polygonal shape or a shape having irregularities on the outer surface.

  As shown in FIGS. 2, 6, and 7, the extending portion 13 of the rotating member 3 is formed to extend from a part of the inner circumference on one end side of the cylindrical portion 3s, and is formed at the center of the cylindrical portion 3s. It has a fan shape that gradually becomes narrower toward. Further, the protrusion 33 of the rotating member 3 is provided on the distal end side of the extending portion 13, and, as shown in FIG. 5, from the position of the extending portion 13 (13A, 13B) through which the rotating shaft 3j passes to the rotating shaft 3j. It protrudes along. The rotating member 3B is provided with a cover member 93 having the same outer diameter as that of the cylindrical portion 3s on the side constituting the outer appearance, and constitutes a part of the outer appearance of the in-vehicle knob switch N501.

  In addition, a plurality of concave portions 53r and convex portions 53t as shown in FIGS. 6A, 6B, 7A, and 7B are alternately provided inside the cylindrical portion 3s. Step portions 53 (53A, 53B) are formed. The concave portions 53r and the convex portions 53t of the stepped portion 53 are formed in a row alternately from the other end side, which is opposite to the one end side of the cylindrical portion 3s, toward the one end side.

  FIG. 8 is a diagram for explaining the holder member H1 of the rotation detection device according to the first embodiment of the present invention, and FIG. 8A is an upper view as viewed from the X2 direction side shown in FIG. 8 is a perspective view, and FIG. 8B is an upper perspective view as viewed from above the X1 direction side shown in FIG. FIG. 9 is a diagram illustrating the rotation detection device 101 according to the first embodiment of the present invention, and is a cross-sectional view taken along the line IX-IX shown in FIG.

  As with the rotating member 3, the holder member H1 of the rotation detecting device 101 is formed by injection molding using a synthetic resin material such as polybutylene terephthalate (PBT), as shown in FIG. 2, FIG. 3 (b), FIG. As shown in FIG. 8B and FIG. 8, it is configured to include a columnar base 11 and semi-columnar pedestals 31 (31 </ b> A, 31 </ b> B) provided on both sides of the base 11. When the rotation detection device 101 is assembled, the holder member H1 is inserted into the cylindrical portion 3s of the rotation member 3.

As shown in FIG. 8, the pedestal 31 (31A, 31B) of the holder member H1 has a first plane H1p (H1p ₁ , H1p ₂ ) which is a semi-cylindrical plane, and this first plane As shown in FIG. 5, H1p is substantially parallel to the rotation axis 3j. Further, as shown in FIG. 8A, the pedestal portion 31A has two rectangular parallelepiped projecting portions 51 (51a and 51b shown in the drawing) that protrude from the first plane H1p ₁ . As shown in FIG. 8B, 31B has _two rectangular parallelepiped protruding portions 61 (61a and 61b shown in the drawing) protruding from the first plane H1p2. When the rotating member 3 (3A, 3B) is disposed on the holder member H1, the protruding portion 51 corresponds to the position of the extending portion 13A of the rotating member 3A. 61 corresponds to the position of the extending portion 13B of the rotating member 3B. In addition, although the shape of the projecting portions (51, 61) is a rectangular parallelepiped shape, it is not limited to this shape, and may be a quadrangular prism shape or a hemispherical shape.

As shown in FIG. 8A, the base 11 of the holder member H1 has a second plane H2v ₁ (H2v) substantially orthogonal to the first plane H1p ₁ of the pedestal 31A on one side, and FIG. as shown in a), whereas has a second plane substantially perpendicular to the first plane H1P ₂ of the pedestal 31B on the side _H2v 2 _(H2v).

  Further, when the rotating member 3A is arranged on the holder member H1, the base 11 of the holder member H1 has a concave groove 11r at a position facing the stepped portion 53A of the rotating member 3A as shown in FIG. Is formed. The groove 11r is provided with a coil spring 57, which is an urging member having elasticity, and further, a spherical contact member 17 urged by the coil spring 57 is provided, so that a step portion 53A is provided. The contact member 17 biases the stepped portion 53A toward the front. As a result, the stepped portion 53A moves while abutting against the contact member 17 as the rotating member 3A rotates. For this reason, when the contact member 17 moves over the convex portion 53t of the stepped portion 53A and moves to the concave portion 53r, it makes a clicking sound and gives the operator a crisp operating feeling. As a result, the operation feeling of the operator can be improved.

  Although not shown, a concave groove is also formed at a position facing the stepped portion 53B of the rotating member 3B. A coil spring 57 and a contact member 17 are disposed in the groove, and the contact member 17 is disposed. Urges the stepped portion 53B. As a result, as the rotating member 3B rotates, it makes a jerky sound and gives the operator a crisp operation feel. As a result, the operation feeling of the operator can be improved. In addition, although the spherical iron ball is used suitably as the contact member 17, material and a shape are not restricted to this. Further, although the coil spring 57 is suitably used as the urging member, it is not limited to the coil spring 57.

As shown in FIGS. 3B and 5, two rotation detection means 5 of the rotation detection device 101 are used, and one rotation detection means 5 </ b> _A is arranged along the second plane H <b> 2 v ₁ of the base 11. together and the other of the rotation detecting means 5B is disposed along a second plane H2v ₂ of the base 11. The two rotation detecting means 5 (5A, 5B) are held by the base 11 of the holder member H1.

  Further, the rotation detecting means 5 uses a commonly used rotary variable resistor, and although not shown in detail, a substrate and a resistor provided with a pattern-like resistor in the outer case 5k The slider has a terminal portion that slides, and an external extraction terminal that is connected to the resistor and extends outside the outer case 5k. Further, a hole is provided in the central portion of the outer case 5k, and the base portion of the slider is exposed in this hole. Then, by rotating this base portion, the terminal portion of the slider slides on the resistor.

  And when each of the rotation member 3 (3A, 3B) is arrange | positioned by the holder member H1, while the rotation member 3 (3A, 3B) is arrange | positioned so that the rotation detection means 5 (5A, 5B) may be covered. The protrusion 33 of the rotating member 3 is engaged with the base portion of the slider and is connected to each of the rotation detecting means 5 (5A, 5B). Thereby, the rotation of the rotating member 3 can be directly transmitted to the rotation detecting means 5. For this reason, it becomes a simple structure and the play of the rotation member 3 is reduced more. Accordingly, it is possible to provide the rotation detection device 101 in which the influence on the operational feeling due to rattling is further reduced.

  Next, the rotation operation of the rotating member 3 will be briefly described. FIG. 10 is a diagram illustrating the rotation detection device 101 according to the first embodiment of the present invention. FIG. 10 (a) is a front view as viewed from the X2 side in FIG. 2 (b), and FIG. FIG. 10B is a front view of the rotating member 3A rotated clockwise from the front view shown in FIG.

  The rotating member 3A shown in FIG. 10 (a) shows a state in which the rotating operation of the left rotation is performed. After the rotating operation of the rotating member 3A is continuously performed, the extending portion 13A of the rotating member 3A is illustrated. The side wall 13a abuts against the projecting portion 51a of the holder member H1, and the rotation operation of the left rotation of the rotating member 3A is stopped (the state shown in FIG. 10A). On the other hand, after the rotation of the rotating member 3A to the right is continuously performed, the side wall 13b of the extending portion 13A of the rotating member 3A comes into contact with the protruding portion 51b of the holder member H1, and the rotating member 3A rotates. The operation is stopped (state shown in FIG. 10B). In addition, although not shown, the side wall (13c, 13d shown in FIG. 7A) of the extending portion 13B of the rotating member 3B is the protruding portion 61 of the holder member H1 (FIG. 8). The rotating operation of the rotating member 3B is stopped by abutting on 61a and 61b) shown in FIG.

In this way, as shown in FIG. 10, the projecting portion 51 (51a, 51b) of the holder member H1 receives the rotating operation of the rotating member 3A. Therefore, as compared to be received in the first plane H1P ₁ of the base portion 31A of the holder member H1, it is possible to reduce the area (abutting area) that receives. Thereby, the sound at the time of contact can be reduced, and the operator's operational feeling can be further improved. In addition, as described above, when the projecting portions (51, 61) are formed in a hemispherical shape, the receiving area (abutting area) can be further reduced, so that the sound at the time of abutting can be further reduced. It is possible to further improve the operational feeling of the operator.

  Further, the rotation angle of the rotation operation can be adjusted by adjusting the heights of the protruding portions 51 (51a, 51b).

  Further, the rotation angle KA of the rotation member 3A shown in FIG. 10B is configured to be about 90 °, and as shown in FIG. 10, the formation with the rotation shaft 3j in the formation range SA of the stepped portion 53A. The angle (angle) JA is configured to be substantially the same as the rotation angle KA. As a result, the stepped portion 53A and the contact member 17 can be brought into contact with each other only in the range of the rotational operation of the rotating member 3A. For this reason, the stepped portion 53A and the contact member 17 can always be brought into contact with each other, and the rotation operation can be restricted at both ends of the formation range SA. As a result, it is possible to always give a crisp operation feeling to the operator, and it is possible to prevent an excessive rotation operation such as excessive rotation. The rotation member 3B is the same, and the formation angle JA with the rotation shaft 3j in the formation range SA of the stepped portion 53B is configured to be substantially the same as the rotation angle KA.

  In addition, as in the first embodiment of the present invention, when the extended portion 13 has a fan shape of about 90 ° and a rotation angle KA of about 90 °, the extended range and the stepped portion that the extended portion 13 extends from The formation range SA in which the plurality of concave portions 53r and convex portions 53t of 53 are alternately provided is substantially the same. In this way, the rotation angle KA is determined by the positions of the side walls (13a and 13b and 13c and 13d) on both sides of the extended portion 13 and the positions of the projecting portions (51 and 61), and according to the rotation angle KA. The formation range SA of the stepped portion 53 is determined.

  The effects of the rotation detection device 101 according to the first embodiment of the present invention configured as described above will be described below.

  In the rotation detection device 101 according to the first embodiment of the present invention, when the rotating member 3 (3A, 3B) is disposed on the holder member H1, the extending portion 13 (13A, 13B) formed on the rotating member 3 is provided. ) Projections 33 (33A, 33B) are coupled to the rotation detecting means 5 (5A, 5B), so that the rotation of the rotating member 3 can be directly transmitted to the rotation detecting means 5. For this reason, it becomes a simple structure and the play of the rotation member 3 is reduced. Accordingly, it is possible to provide the rotation detection device 101 in which the influence on the operational feeling due to rattling is reduced.

  Further, since the extending portion 13 of the rotating member 3 and the projecting portions (51, 61) of the holder member H1 come into contact with each other due to the rotating operation of the rotating member 3, the rotating operation of the rotating member 3 is caused to project the holder member H1. Part (51, 61) will receive it. For this reason, compared with receiving on the 1st plane H1p of the base part 31 of the holder member H1, the area to receive (area to contact | abut) can be made small. Thereby, the sound at the time of contact can be reduced, and the operator's operational feeling can be further improved. In addition, the rotation angle KA of the rotation operation can be adjusted by adjusting the heights of the projecting portions (51, 61).

  Further, since the holder member H1 is provided with the contact member 17 biased toward the stepped portion 53 at a position facing the stepped portion 53 formed inside the cylindrical portion 3s of the rotating member 3, the rotation is performed. As the member 3 rotates, the stepped portion 53 moves while contacting the contact member 17. As a result, when the contact member 17 moves over the convex portion 53t and moves to the concave portion 53r, it makes a clicking sound and gives the operator a solid operational feeling. Can be further improved.

  In addition, since the angle with the rotation shaft 3j in the formation range SA of the step portion 53 is substantially the same as the rotation angle KA of the rotation operation of the rotation member 3, the contact with the step portion 53 only within the rotation operation range of the rotation member 3. The member 17 can be brought into contact. For this reason, the step part 53 and the contact member 17 can always be brought into contact with each other, and the rotation operation can be restricted at both ends of the formation range SA. As a result, it is possible to always give a crisp operation feeling to the operator and to prevent an extra rotation operation.

  In addition, this invention is not limited to the said embodiment, For example, it can deform | transform and implement as follows, These embodiments also belong to the technical scope of this invention.

<Modification 1>
In the first embodiment, two rotation members 3 (3A, 3B) and two rotation detection means 5 (5A, 5B) are provided. However, a pair of rotation members and rotation means may be used. Two or more sets may be used.

<Modification 2>
In the first embodiment, the spacer member 19 is provided between the rotating member 3A and the rotating member 3B so as to avoid mutual interference. However, the spacer member 19 is not necessarily required. .

  The present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the scope of the object of the present invention.

H1 Holder member 11 Base 31, 31A, 31B Pedestal 51, 51a, 51b, 61, 61a, 61b Protruding part 3, 3A, 3B Rotating member 3j Rotating shaft 3s Cylindrical part 13, 13A, 13B Extending part 33, 33A, 33B projections 53, 53 a, 53B stepped portion 5, 5A, 5B rotation detecting means 17 the contact member _H1p, H1p _1, H1p ₂ first plane _H2v, H2v _1, H2v ₂ second planar JA forming angles (angle)
KA rotation angle SA formation range 101 rotation detector

Claims (4)

A rotating member having a cylindrical portion that is rotated by an operator, a holder member that is inserted through the cylindrical portion of the rotating member, and a rotation detection unit that is held by the holder member and detects the rotation of the rotating member. A rotation detection device comprising:
The holder member has a pedestal portion having a first plane substantially parallel to the rotation axis of the rotation operation, and a base portion having a second plane substantially orthogonal to the first plane,
The rotation detecting means is disposed along the second plane;
The rotating member protrudes from the extending portion along the rotation axis from an extended portion formed to extend toward the center of the cylindrical portion, and a position through which the rotating shaft penetrates the extending portion. Having a protrusion formed by
When the rotating member is disposed on the holder member,
The rotation member is disposed so as to cover the rotation detection unit, and the protrusion is connected to the rotation detection unit, and transmits the rotation of the rotation member to the rotation detection unit. . The pedestal portion corresponding to the position of the extending portion has a protruding portion protruding from the first plane,
The rotation detecting device according to claim 1, wherein the extending portion and the projecting portion are in contact with each other by the rotating operation of the rotating member. When the rotating member is disposed on the holder member,
On the inner side of the tubular portion, a step portion in which a plurality of concave portions and convex portions are provided alternately is formed,
The rotation detection device according to claim 1, wherein the holder member is provided with a contact member that is urged toward the stepped portion at a position facing the stepped portion. .   The rotation detection device according to claim 3, wherein an angle with the rotation axis in a formation range of the stepped portion is substantially the same as a rotation angle of the rotation operation.