JP2017201476A - Rotation operation unit and electronic apparatus including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rotation operation unit advantageous in durability and silence.SOLUTION: A rotation operation unit comprises: support members (103, 116); rotation operation members (102, 108) that are rotatably supported by the support members and have an irregular part (108a) for generating a click feeling on an outer peripheral surface; and a click mechanism that generates a click feeling when the rotation operation members are rotationally operated. The click mechanism includes: a ball member (118) that can be in contact with the irregular part; a contact member (119) that has a projection part (119a) in contact with the ball member formed thereon; and an elastic member (120) that urges the ball member toward the irregular part with the contact member therebetween. The projection part is in contact with the ball member at a position orthogonal to a rotation axis of the rotation operation members and different from a position on a first axis passing through the center of the ball member, and a line connecting the contact portion and the center is inclined with respect to the first axis.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a rotation operation unit that generates a click during a rotation operation.

  In the rotary operation dial disclosed in Patent Document 1, in order to adjust the click sound at the time of the rotary operation, a configuration for adjusting the fitting state of the ball to be urged and the holding portion for holding the ball is proposed. Yes. Further, in order to suppress the click sound during the rotation operation, a configuration has been proposed in which a sound absorbing material such as rubber or a soft synthetic resin sheet is attached to the inner wall of the holding portion to absorb and silence the impact sound of the ball.

  In addition, in the mechanism disclosed in Patent Document 2, a technique has been proposed in which a resin part having a shape for holding a ball is inserted between the ball and the spring, thereby suppressing movement of the ball and reducing operating noise. ing.

JP 2000-156129 A JP 2006-210221 A

  However, in the prior art disclosed in Patent Document 1 described above, a step is formed between the opening and the sound adjustment member, and the ball hits the step every click, and thus wear easily. Further, since the ball slides with the sound adjusting member, the sound adjusting member is easily worn at the sliding portion, and there is a problem in durability.

  In addition, in the conventional technique disclosed in Patent Document 2 described above, the resin part and the ball move together with respect to the operation of colliding with the side wall as described in Patent Document 1, and the collision with the side wall is caused. Inevitable, noise reduction effect was small.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a rotary operation unit that is advantageous in terms of durability and quietness, and an electronic device including the same.

  A rotational operation unit according to an aspect of the present invention includes a support member, a rotational operation member that is rotatably supported by the support member, and has an uneven portion for generating a click feeling on an outer peripheral surface, and the rotational operation. A click mechanism that generates a click feeling when the member is rotated, and the click mechanism is formed with a ball member that can come into contact with the concavo-convex portion and a protrusion that comes into contact with the ball member. And an elastic member that urges the ball member toward the concavo-convex portion via the contact member, and the protrusion is orthogonal to a rotation axis of the rotation operation member and A contact with the ball member at a position different from the axis of the first axis passing through the center of the ball member, and a line connecting the corresponding part and the center is inclined with respect to the first axis. .

  ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide a rotary operation unit advantageous to durability and silence, and an electronic device provided with the same.

It is an external view of the switch mechanism of the Example of this invention. It is an exploded view of the switch mechanism of the Example of this invention. It is sectional drawing of the switch mechanism of the Example of this invention. It is a front view of the flexible substrate of the Example of this invention. It is an inside view of the switch mechanism of the Example of this invention. It is a perspective view of the biasing member of the switch mechanism of the Example of this invention. It is an enlarged view of the accommodating part of the switch mechanism of 1st Example of this invention. It is AA sectional drawing in FIG. It is an inside view which shows a mode that the switch mechanism of the 1st Example of this invention was rotationally operated. It is the figure which showed the force concerning a ball | bowl in FIG. It is an enlarged view of the accommodating part of the switch mechanism of 2nd Example of this invention. It is a perspective view of the back side of the electronic device of the 3rd Example of this invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

  Hereinafter, a switch mechanism including a rotary operation unit according to a first embodiment of the present invention will be described. FIG. 1 is an external front view of the switch mechanism of the present invention. FIG. 2 is an exploded perspective view of the switch mechanism of the present invention. FIG. 3 is a cross-sectional view of the switch mechanism of the present invention. FIG. 4 is a front view of the flexible substrate 115 of the present invention.

  Reference numeral 100 denotes the entire switch. Reference numeral 101 denotes a housing of a device (electronic device) using the switch mechanism 100.

  Reference numeral 102 denotes an operation member (rotation operation member), which is used by a user to perform a rotation operation and input an operation.

  Reference numeral 103 denotes a support member (fixing member) which is fixed to the casing 101 and rotatably supports the operation member 102, and is preferably formed of a resin having excellent sliding properties such as POM. Reference numeral 103a denotes a storage portion that stores a ball 118, a biasing member 119, and a click spring 120 (hereinafter also referred to as a click mechanism). In other words, the support member 103 has a storage portion 103a for storing a click mechanism described later. In this embodiment, the storage portion 103a is formed in a substantially rectangular parallelepiped space on the support member 103, but may be a cylindrical shape or the like.

  A button 104 is fitted to the operation member 102 and is supported so as to be able to advance and retreat. Reference numeral 105 denotes a button retaining plate, which is fixed by a button retaining plate fixing member 106 so as not to be detached from the rotation operation member 102 with respect to the button 104. Reference numeral 107 denotes a lid member whose function will be described later.

  A rotating plate 108 is formed in a substantially disk shape, and is fixed to the lid member 107 by a contact brush fixing member 111 described later so that the operation member 102 does not come off the support member 103. In addition, a click wavefront 108a having an uneven wave shape is formed on the outer periphery. The rotating plate 108 rotates together with the operation member 102, is rotatably supported by the support member 103, and is a rotating operation member having a click wave surface (uneven portion) 108a for generating a click feeling on the outer peripheral surface. It functions as a department. The rotating plate 108 is preferably formed of a material having good sliding properties such as POM.

  Reference numeral 109 denotes a contact brush. 110 is a contact brush holding plate. A contact brush fixing member 111 is used to fasten and fix the operation member 102, the rotating plate 108, the contact brush 109, and the contact brush holding plate 110 to the lid member 107.

  An operation member retracting member 112 is compressed and stored by the support member 103 and the rotating plate 108 and is used to prevent the rotating plate 108 from rattling. The operation member retracting member 112 is preferably formed of an elastic material such as rubber.

  An adhesive member 113 is used to fix the support member 103 to the housing 101. In addition, the space between the housing 101 and the support member 103 is sealed to prevent entry of dust and water droplets. Reference numeral 114 denotes a rubber switch whose function will be described later.

  Reference numeral 115 denotes a flexible substrate. On the flexible substrate 115, brush detection conductive patterns 115a, b, c and button detection conductive patterns 115d, e are formed.

  Reference numeral 116 denotes a base plate (support member) that is used to support the pressing force of the flexible substrate 115 and the button 104. The base plate 116 is a fixing member that is fixed to the housing 101 by a base plate fixing member 117.

  Reference numeral 118 denotes a ball (ball member) which is a metal sphere in this embodiment, but may be formed of a resin or a non-sphere. The ball 118 is configured to be able to contact the click wavefront 108a. The center of the ball 118 is a ball center 118a.

  Reference numeral 119 denotes an urging member (contact member), which is preferably formed of a resin having high slidability such as POM, but is not particularly limited. As will be described later, the urging member 119 is formed with a protrusion 119a that comes into contact with the ball 118.

  120 is a click spring. The click spring 120 is an elastic member that urges the ball 118 toward the click wave surface 108 a via the urging member 119.

  The ball 118, the urging member 119, and the click spring 120 function as a click mechanism that generates a click feeling when the operation member 102 is rotated.

  The ball 118, the urging member 119, and the click spring 120 are each housed in a housing portion 103a formed on the support member 103.

  The flexible substrate 115 will be described with reference to FIG. The brush detection conductive patterns 115a and 115c are separate signal patterns, and the brush detection conductive pattern 115b is a ground pattern. The brush detection conductive pattern 115b is always in conduction with the contact brush 109. When the user rotates the operation member 102, the contact brush 109 slides on the brush detection conductive patterns 115a, b, and c. Then, the brush detection conductive patterns 115a and 115c repeat conduction and non-conduction with the brush detection conductive pattern 115b via the contact brush 109 to generate a signal. With this signal, the rotation direction and the rotation angle can be detected. As described above, the flexible substrate 115 is configured as detection means that can detect the rotation direction and the rotation angle of the operation member (rotary plate) when the operation member 102 is rotated. When the user presses the button 104, the button detection conductive patterns d and e are conducted by a conductive chip (not shown) provided in the rubber switch 114 to generate a signal. Thereby, the button operation by the user is detected. The details of the detection of the conductive patterns 115a to 115e are general techniques and are not the essence of the present invention, and thus are not mentioned in this embodiment.

  Next, a method for urging the ball 118 by the urging member 119 will be described with reference to FIGS. FIG. 5 is an internal view of the support member 103, the ball 118, the biasing member 119, and the click spring 120. Reference numeral 200 denotes a central axis (rotation axis) of the operation member 102. The central axis 200 is the Z axis, a straight line perpendicular to the Z axis and passing through the center of the ball center 118a is the X axis, and the Y axis is set so as to form an orthogonal coordinate system with the X axis and the Z axis. The right direction of the X axis in FIG. 5 is the X direction, the upper direction of the Y axis is the Y direction, and the direction from the front to the back is the Z direction. The center line 203 in FIG. 5 is the X axis and the Y axis.

  FIG. 6 is a perspective view of the urging member 119. A total of eight side rails 119c are formed on each of the four surfaces of the urging member 119 so that the urging member 119 can slide in the substantially rectangular parallelepiped storage portion 103a. The urging member 119 has a protrusion 119a formed between the click spring 120 and the click ball. The urging member 119 abuts against the ball 118 at the urging member contact portion 119b of the protrusion 119a. The rotating plate 108 is biased. A protrusion rail surface 119 d is formed between the protrusion 119 a and the base plate 116. Further, a ball recess 119e for widening the clearance with the ball 118 is formed on the surface on which the protrusion 119a is formed. In addition, a click spring recess 119f into which the click spring 120 enters is formed on the surface opposite to the surface on which the protrusion 119a is formed. Further, a warp preventing protrusion 119g that is inserted into the click spring 120 and suppresses the warp of the click spring 120 is formed inside the click spring recess 119f. Further, the biasing member 119 is formed with a misassembly prevention protrusion 119h for preventing the position of the protrusion 119a from being mistakenly incorporated in the housing 103a which is a substantially rectangular parallelepiped. As shown in FIG. 5, the storage portion 103a is formed with a storage portion notch 103b at a location corresponding to the misassembly prevention protrusion 119h.

  FIG. 7 is an enlarged view of the periphery of the storage portion 103a in FIG. The rotating plate contact 108 b is a contact between the ball 118 and the rotating plate 108. The support member first contact 103c is one of the contacts between the ball 118 and the support member 103, and is a contact when the ball 118 is loosely moved in the Y direction. As can be seen from FIG. 7, the protrusion 119 a (the biasing member contact portion 119 b) is at a position different from the axis of the X axis (first axis) passing through the center of the ball 118 perpendicular to the rotation axis of the operation member 102. It is in contact with the ball 118. In other words, a line connecting the biasing member contact portion 119b with which the ball 118 and the protruding portion 119a abut and the center of the ball 118 is inclined with respect to the X axis. In addition, as shown in the drawing, there is one contact portion (the urging member contact portion 119b) between the urging member 119 and the ball 118. Here, the projection line connecting the ball center 118a and the rotating plate contact 108b on the XY plane, and the projection line connecting the ball center 118a and the biasing member contact portion 119b on the XY plane with the angle formed by the X axis as θ1. And the angle formed by the X axis is θ2. That is, an angle between a first projection line obtained by projecting a line connecting the contact portion of the ball 118 and the click wavefront 108a and the center of the ball 118 onto the XY plane and the X axis is a first angle θ1. In addition, an angle between a second projection line obtained by projecting a line connecting the contact portion of the ball 118 and the protruding portion 119a and the center of the ball 118 onto the XY plane and the X axis is a second angle θ2.

FIG. 8 shows the periphery of the storage portion 103a in the AA cross section of FIG. 7 and shows the component of force applied to the ball 118 on the cross section AA. F1 indicates the force that the ball 118 receives from the rotating plate contact 108b, and F2 indicates the force that the ball 118 receives from the biasing member contact portion 119b. P2 represents the normal force that the ball 118 receives from the base plate 116, and P1 represents the normal force that the ball 118 receives from the support member second contact 103d. Since the urging member contact portion 119b is formed to be closer to the base plate 116 than the X axis, F2 is not parallel to the X axis, and the Z direction component of F2 is upward in the figure. The click wavefront 108a is inclined as shown in FIG. 8, and the Z component of F1 is in the same direction as the Z component of F2. At this time, since the ball 118 is not compressed, at least one of P1 and P2 becomes zero. here,
P1 = 0
In order to achieve this, P1 must be larger than the sum of the Z component of F1 and the Z component of F2, and must be separated from the support member second contact 103d. Since the ball 118, the supporting member 103, the urging member 119, and the rotating plate 108 are made of a material having low elasticity such as resin or metal, P1 which is a drag force by F1 and F2 is the Z component of the original forces F1 and F2. It usually does not occur to be greater than the sum of. So always,
P1> 0
Therefore, it may be considered that the ball 118 is always in contact with the support member second contact 103d.

  As shown in FIG. 8, the click wavefront 108 a is configured such that the radial width of the rotating plate 108 is parallel to the Z axis on the rotation axis (Z axis) of the operation member 102 and the XZ plane (first plane) including the X axis. It inclines with respect to the Z-axis so that it may become large along the downward direction (1st direction) in FIG. Further, the protrusion 119a (the urging member contact portion 119b) is located on the lower side (the first direction side, one side of the first direction) with respect to the XY plane (second plane) orthogonal to the Z axis and including the X axis. Side).

  However, the present invention is not limited to FIG. 8. For example, the click wave surface 108 a may have a plane parallel to the Z axis, and only the protrusion 119 a (biasing member contact portion 119 b) may be configured as shown in FIG. On the contrary, the protrusion 119a (the biasing member contact point 119b) is in contact with the ball 118 at a position different from the X axis in the XY plane, and only the click wave surface 108a is as shown in FIG. It is good also as a structure. Further, the ball 118 may be constantly urged in the direction opposite to that in FIG. 8 (that is, downward in FIG. 8). In that case, the click wavefront 108a is inclined with respect to the Z axis so that the radial width of the rotating plate 108 increases along the upward direction (second direction) in FIG. 8 parallel to the Z axis. What is necessary is just to comprise. Furthermore, what is necessary is just to comprise so that the protrusion part 119a (biasing member contact part 119b) may be provided in the upper side (the 2nd direction side, the other side) in FIG.

  As described above, since the ball 118 is in contact with the support member second contact 103d regardless of the phase of the rotating plate 108a, it is possible to suppress the occurrence of noise by swinging in the Z direction.

  FIG. 9 is an enlarged view showing a state of the storage portion 103a when the rotating plate 108 is rotated. In FIG. 9, the ball 118 is in contact with the rotating plate 108 at the concave portion of the click wavefront 108 a, but the position changes according to the rotation of the rotating plate 108. When the rotating plate 108 is rotated clockwise, θ1 changes as shown in FIGS. 9A, 9B, and 9C, respectively.

Next, components when the force applied to the ball 118 is projected onto the XY plane while the rotating plate 108 is being rotated clockwise will be described with reference to FIGS. In the present invention, the position of the urging member contact portion 119b is determined so that when the ball 118 passes over the top of the concavo-convex portion of the rotating plate 108, it does not oscillate in the storage portion 103a and noise of a collision sound is generated. Has been. Details will be described below. In FIG. 10A, since the ball 118 is always urged to the support member first contact 103c by the urging member 119, θ2> 0. That is, the protrusion 119a (the urging member contact portion 119b) is in contact with the ball 118 at a position different from the axis of the X axis, and a line connecting the urging member contact portion 119b and the center of the ball 118. Is inclined with respect to the X-axis. Further, the forces generated at the rotating plate contact 108b are F1 and μ1F1, where the friction coefficient is μ1. The forces generated at the urging member contact portion 119b are F2 and μ2F2, where the friction coefficient is μ2. The force generated by the support member first contact 103c is a vertical drag N and a friction coefficient μ3, which is μ3N. Here, a force not related to the swing of the ball 118 on the XY plane is not shown because it is not necessary for explanation. In addition, the Y-direction components of the frictional forces μ1F1 and μ2F2 are generally reduced to about 0.1 to 0.2 as compared with the Y-components of F1 and F2, and the force acting on the rotation of the ball 118 Therefore, if you ignore it on the slope, than the balance of forces in the X direction,
F1 cos θ1 = F2 cos θ2 (1)
From the balance of forces in the Y direction,
F1sin θ1 + N = F2sin θ2 (2)
In order for the ball 118 to always contact the support member 103 at the support member first contact 103c,
N> 0 (3)
So, from the three formulas (1), (2) and (3),
tan θ1 <tan θ2 (0 ° <θ1 <90 °, 0 ° <θ2 <90 °)
Therefore, it is necessary to satisfy θ1 <θ2.

  In the present embodiment, the angle of the click wavefront 108a and the position of the biasing member contact portion 119b are set so that θ1 <θ2 regardless of the phase of the rotating plate 108.

  Next, the force component of the rotary plate contact 108b in the vicinity of the apex of the click wavefront 108a will be described with reference to FIG. The force for pulling the ball 118 away from the support member first contact 103c is only the frictional force μ1F1.

The balance of forces in the Y direction in FIG.
N + μ1F1 = F2sin θ2 (4)
The balance of forces in the X direction is
F2 cos θ2 = F1 (5)
Further, in order for the ball 118 to always contact the support member 103 at the support member first contact 103c,
N> 0 (6)
So, from the three formulas (4) (5) (6),
It is necessary that tan θ2> μ1.

  Thus, in the present embodiment, the protrusion 119a (the biasing member contact portion 119b) has a second angle that is greater than the maximum angle among the first angles θ1 that change when the operation member 102 is rotated. Is set so as to contact the ball 118 at a position where the angle θ2 becomes larger. Further, when the friction coefficient between the rotating plate 108 and the ball 118 is μ1, tan θ2 is set to be larger than μ1.

From the above,
θ1 <θ2
By setting tan θ2> μ1,
Regardless of the phase of the click plate 108a, the ball 118 comes into contact with the support member first contact 103c, and it is possible to reduce the generation of noise due to swinging in the Y direction. Further, since all the sliding portions are generated between the metal ball and the resin having good slidability, the wear is small and the corners of the ball 118 and the support member 103 do not contact each other, so that the durability is also improved.

  In this embodiment, the click wavefront 108 a is formed on the rotating plate 108, and the storage portion 103 a is formed on the support member 103. However, the click wavefront 108a may be formed on the support member 103 and the storage portion 103a may be formed on the rotating plate 108 or the operation member 102, and the arrangement and combination thereof are not particularly limited.

  Hereinafter, with reference to FIG. 11, a switch mechanism including a rotary operation unit according to a second embodiment of the present invention will be described. In this embodiment, the storage portion 103a of the support member 103 is set such that a gap with the ball 118 exists by a predetermined amount (first distance) δ in a direction parallel to the Y axis.

  In this embodiment, the click wavefront 108a has a large unevenness as shown in FIG. 11 in order to clarify the click. For the sake of explanation, the backlash amount of the ball 118 and the storage portion 103a is exaggerated as δ. In this embodiment, when the ball 118 is in the recess of the click wavefront 108a, θ1> θ2. When the rotating plate 108 is rotated clockwise in this state, the ball 118 is urged by the support member third contact 103e of the support member 103 as shown in FIG. Since the description of the dynamic mathematical expressions is performed in the first embodiment, the description is omitted. When the rotating plate 108 is further rotated, θ1 = θ2 is obtained as shown in FIG. In this state, the component in the Y direction of the force F1 received by the ball 118 from the rotating plate contact 108b and the force F2 received from the biasing member contact portion 119b coincide with each other. The distance between the rotating plate contact 108b and the center line 203 at this time is L. When the rotating plate 108 is further rotated, θ1 <θ2 is satisfied as shown in FIG. When θ1 <θ2, the ball 118 leaves the support member third contact 103e and moves by a backlash δ between the ball 118 and the storage portion 103 until it collides with the support member first contact 103c. When the rotating plate 108 is further rotated, as shown in FIG. 11E, the movement of the backlash δ is finished, and the ball 118 remains in the state where the ball 118 is in contact with the support member first contact 103c. Abutting on the vertex 108c, θ1 = 0. If the ball 118 moves over the apex 108c of the rotating plate 108 while the ball 118 moves δ in the Y direction, the components in the Y direction are positive and coincide in both F1 and F2, so the ball 118 is accelerated rapidly and the support member Colliding with the first contact 103c. If the ball 118 does not get over the apex 108c of the rotating plate 108 while the ball 118 moves δ in the Y direction, the Y direction components of F1 and F2 cancel each other, thereby suppressing the acceleration of the ball 118 in the Y direction. Can do.

In order to prevent this, in the present embodiment, in the phase where θ1 = θ2,
L> δ
The urging member 119, the support member 103, and the click wave surface 108a are formed so that

  As described above, in this embodiment, it is assumed that the first angle θ1 may be larger than the second angle θ2 when the operation member 102 is rotated. When the operating member 102 is rotated, the first angle θ1 and the second angle θ2 are equal to each other from the contact portion of the ball 118 and the click wavefront 108a on the first projection line to the X axis. The distance is set as L (second distance). Here, the support member 103 (housing part) and the rotating plate 108 (so that the second distance is larger than the distance (first distance) between the ball 118 and the housing part 103a in the Y-axis direction. An uneven portion) and a biasing member 119 (projection portion) are set.

  Thereby, even when it is desired to increase the unevenness of the click wavefront 108a, it is possible to enhance the silent effect.

  Hereinafter, with reference to FIG. 12, an imaging apparatus (electronic device) including a rotation operation unit (switch mechanism) according to a third embodiment of the present invention will be described.

  FIG. 12 is a rear perspective view of the imaging apparatus 300 according to the third embodiment of the present invention.

  Reference numeral 304 denotes a back cover, and reference numeral 306 denotes a connector cover that protects terminals mounted on the substrate.

  Reference numeral 309 denotes a liquid crystal display device that displays various types of information such as confirmation / reproduction of captured images and imaging conditions. An operation dial 310 includes a central operation button and a peripheral dial, and is configured to be rotatable. By operating the operation dial 310, it is possible to set a shutter speed, a lens aperture value, and the like according to an operation mode at the time of shooting.

  Reference numeral 313 denotes a so-called release operation button provided with shooting preparation and shooting start functions. Reference numeral 315 denotes a mode dial for selecting various shooting modes.

  The above-described rotational operation units of the first and second embodiments can be applied to the operation dial 310 and the mode dial 315 of the imaging apparatus 300, for example.

  As a result, it is possible to provide an imaging device including a rotation operation unit that provides a feeling of clicking when a dial operation is performed, and that is excellent in both quietness and durability.

  As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

  The rotary operation unit of the present invention can be suitably used for an electronic device having a click-type dial. Specifically, for example, it can be suitably used for an imaging apparatus such as a compact digital camera, a single-lens reflex camera, and a video camera.

102 Operation member 103 Support member 108 Rotating plate 108a Click wave surface 116 Base plate 118 Ball 119 Biasing member 119a Protrusion 120 Elastic member

Claims (11)

A support member;
A rotation operation member that is rotatably supported by the support member and has an uneven portion for generating a click feeling on the outer peripheral surface;
A click mechanism that generates a click feeling when the rotation operation member is rotated;
Have
The click mechanism is
A ball member capable of coming into contact with the uneven portion;
A contact member formed with a protrusion that contacts the ball member;
An elastic member that urges the ball member toward the concavo-convex portion via the contact member;
With
The protrusion is in contact with the ball member at a position different from the axis of the first axis that is orthogonal to the rotation axis of the rotation operation member and passes through the center of the ball member, and a line connecting the corresponding portion and the center Inclined with respect to the first axis,
A rotary operation unit characterized by that.   The rotation operation unit according to claim 1, wherein the uneven portion is inclined with respect to the rotation axis in a first plane including the rotation axis and the first axis.   The rotation operation according to claim 1, wherein the protrusion is provided on one side or the other side with respect to a second plane orthogonal to the rotation axis and including the first axis. unit. The concavo-convex portion is rotated so that a radial width of the rotation operation member is increased along a first direction parallel to the rotation axis in a first plane including the rotation axis and the first axis. Inclined with respect to the axis,
The protrusion is provided on the first direction side with respect to a second plane perpendicular to the rotation axis and including the first axis.
The rotation operation unit according to any one of claims 1 to 3, wherein the rotation operation unit is provided. The protrusion is
A first projection line obtained by projecting a line connecting the contact portion of the ball member and the concavo-convex portion and the center onto a second plane perpendicular to the rotation axis and including the first axis; and the first axis. The angle between is the first angle,
An angle between a second projection line obtained by projecting a line connecting the contact portion of the ball member and the protrusion and the center onto the second plane and the first axis is a second angle. When
Provided so as to come into contact with the ball member at a position where the second angle is larger than the maximum angle among the first angles that change when the rotation operation member is rotated.
The rotation operation unit according to any one of claims 1 to 4, wherein the rotation operation unit is provided.   6. The rotation operation unit according to claim 5, wherein tan θ <b> 2 is larger than μ <b> 1 when the second angle is θ <b> 2 and the coefficient of friction between the rotation operation member and the ball member is μ <b> 1. The support member has a storage portion for storing the click mechanism,
The storage portion is provided with a gap with the ball member for a first distance in a direction orthogonal to the rotation axis and the first axis,
A first projection line obtained by projecting a line connecting the contact portion of the ball member and the concavo-convex portion and the center onto a second plane perpendicular to the rotation axis and including the first axis; and the first axis. The angle between is the first angle,
An angle between a second projection line obtained by projecting a line connecting the contact portion of the ball member and the protrusion and the center onto the second plane and the first axis is a second angle. When
When the first angle may be larger than the second angle when the rotation operation member is rotated,
When the rotation operation member is rotated, when the first angle is equal to the second angle, the first axis is determined from the contact portion of the ball member and the concavo-convex portion on the first projection line. The storage part, the concavo-convex part, and the projection part are set so that the second distance until is larger than the first distance.
The rotation operation unit according to any one of claims 1 to 4, wherein the rotation operation unit is provided.   The rotation operation unit according to claim 1, wherein the support member, the rotation operation member, and the contact member are made of resin.   The rotary operation unit according to claim 1, wherein the ball member is made of metal or resin.   The rotary operation unit according to claim 1, wherein the contact portion between the contact member and the ball member is at one place. The rotary operation unit according to any one of claims 1 to 10,
An electronic device comprising: detection means capable of detecting a rotation direction and a rotation angle of the rotation operation member when the rotation operation member is rotated.