JP2017045150A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus capable of providing a user comfortable operation touch.SOLUTION: The electronic apparatus allows a user to switch whether an annular member 207 should be slid with respect a rotation member 205 or the rotation member 205 should be slid with respect to a base member 204 by means of a switching operation lever 103 when a rotation operation is made on an operation ring 102. The magnitude of a drag, which is generated when the operation ring 102 is operated, is changed by utilizing the fact that a frictional force generated when the annular member 207 is slid on the rotation member 205 is larger than a frictional force generated when the rotation member 205 is slid on the base member 204.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an electronic apparatus including an operation member that can be rotated.

  2. Description of the Related Art Conventionally, an imaging apparatus including a focus ring and a zoom ring (hereinafter referred to as “adjustment mechanism”) that can be rotated is known (see, for example, Patent Document 1). The user rotates the adjustment mechanism to adjust the focus and the magnification of the subject for shooting.

  There is also known an imaging apparatus including an operation ring (hereinafter referred to as a “switching mechanism”) that can be rotated to set imaging parameters such as an aperture and imaging sensitivity during imaging (see, for example, Patent Document 2). . The switching mechanism has a click feeling generating mechanism for feeling a moderate response (hereinafter referred to as “click feeling”) when the user operates the switching mechanism. When the user rotates the switching mechanism, the user grasps the shooting parameter setting status by feeling a click feeling, which is a relatively small vibration.

  Furthermore, a torque variable device that changes the rotational torque of the rotation mechanism is known (see, for example, Patent Document 3). For example, the torque variable device adjusts the torque in the rotation operation of the adjustment mechanism and the switching mechanism.

  By the way, in general, the user continuously operates the adjustment mechanism to finely adjust the focus and the like. Therefore, when the user operates the adjustment mechanism, a rotation torque (hereinafter referred to as “strong rotation torque”) that gives a sense of resistance to the operation of the adjustment mechanism is applied to the adjustment mechanism. When a strong rotational torque is applied to the adjustment mechanism, for example, fine adjustment of the focus or the like is facilitated. On the other hand, when the user operates the switching mechanism, the switching mechanism is provided with a rotational torque (hereinafter, referred to as “weak rotational torque”) that does not give a sense of resistance to the operation of the switching mechanism. When the weak rotation torque is applied to the switching mechanism, the user obtains a clear click feeling when operating the switching mechanism.

JP-A-5-11163 JP 2011-8970 A JP 2014-6701 A

  However, when the imaging apparatus includes the adjustment mechanism described in Patent Document 1 and the switching mechanism described in Patent Document 2, and a strong rotational torque suitable for the operation of the adjustment mechanism is applied to the imaging apparatus, a large operating force is required for the operation of the switching mechanism. Is necessary, and the click feeling is canceled. In addition, when a weak rotational torque is applied to the imaging apparatus so as not to cancel the click feeling, the adjustment mechanism easily rotates when the user operates the adjustment mechanism, so that an erroneous operation of the adjustment mechanism is likely to occur. That is, when applying a rotational torque to the imaging device by the torque variable device, it is difficult to achieve both the operability of the adjustment mechanism and the clear click feeling of the switching mechanism, and as a result, it is possible to realize a comfortable operation feeling for the user. There was a problem that I could not.

  The objective of this invention is providing the electronic device which can implement | achieve a comfortable operation feeling of a user.

  In order to achieve the above object, an electronic device according to the present invention includes an operation member that can be rotated, a base member that rotatably supports the operation member, and a rotation that is rotatable relative to the base member. A rotating member having a first contact portion that contacts the operating member and a second contact portion that contacts the base member; and a restricting means that restricts rotation of the rotating member relative to the base member. When the means restricts the rotation of the rotating member relative to the base member, when the operating member is rotated, the first frictional force generated between the operating member and the first contact portion is resisted against the first frictional force. When the operating member is rotated and the restricting means does not restrict the rotation of the rotating member relative to the base member, when the operating member is operated to rotate, it occurs between the base member and the second contact portion. It said operating member against the second friction force operated to rotate, the first friction force being greater than said second frictional force.

  ADVANTAGE OF THE INVENTION According to this invention, a user's comfortable operation feeling is realizable.

It is a figure which shows schematically the structure of a digital camera as an electronic device which concerns on the 1st Embodiment of this invention. It is a rear view of the front cover unit to which the operation ring in FIG. 1 is attached. FIG. 2B is an exploded rear perspective view of the front cover unit of FIG. 2A. It is a fragmentary sectional view of the front cover unit of Drawing 2A. It is a figure used in order to explain a change plate and a change plate support member in Drawing 2B. It is a figure used in order to demonstrate the relationship between the click feeling switching mechanism and click feeling generation | occurrence | production mechanism of FIG.4 (C). It is sectional drawing of the click feeling generation | occurrence | production mechanism and click feeling switching mechanism in FIG. 2A. It is the elements on larger scale used for demonstrating the rotation member and rotation control member when the switching operation lever in FIG. 1 is operated and the click feeling generation | occurrence | production mechanism is validated. It is the elements on larger scale used for demonstrating the rotation member and rotation control member when the switching operation lever in FIG. 1 is operated and the click feeling generation | occurrence | production mechanism is invalidated. It is sectional drawing of the front cover unit in the 2nd Embodiment of this invention.

  Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram schematically showing a configuration of a digital camera 100 as an electronic apparatus according to the first embodiment of the present invention. 1A is a front perspective view of the digital camera 100, and FIG. 1B is a rear perspective view of the digital camera 100.

  A digital camera 100 in FIG. 1 includes a zoom lens barrel unit 101, an operation ring 102, and a switching operation lever 103 on the front side of the digital camera 100. The digital camera 100 also includes a power button 104, a release button 105, and a zoom lever 106 on the top surface of the digital camera 100. The digital camera 100 further includes a strobe unit 109 having a mode dial 107, an exposure correction dial 108, and a light emitting unit 109a on the top surface of the digital camera 100, and a strobe lever 110 on one side of the digital camera 100.

  The digital camera 100 also includes a tilt support 111, a display unit 112, an operation button group 113, and a grip unit 114 on the back side of the digital camera 100, and a communication button 115 and a connection terminal on the other side of the digital camera 100. 116. The connection terminal 116 is covered with a terminal cover 116a.

  When the user rotates the operation ring 102, for example, the focus, the magnification of the subject, or the shooting parameter is changed. The switching operation lever 103 is operated to enable or disable a click feeling generation mechanism described later. In addition, the switching operation lever 103 includes a protrusion 103a described later. The power button 104 is pressed to turn on / off the digital camera 100. The release button 105 is a shutter, and the zoom lever 106 is operated when changing the magnification of the subject. The mode dial 107 is operated when switching the shooting mode.

  The exposure correction dial 108 is operated when performing exposure correction on the image after shooting. When the strobe lever 110 is operated, the light emitting unit 109a pops up. The tilt type support body 111 supports the display unit 112 so as to be tiltable. The operation button group 113 is used, for example, when selecting a shooting mode. The grip part 114 is used when the user holds the digital camera 100. The communication button 115 is pressed, for example, when communicating image data with a client PC as an external device. For example, a USB connector is connected to the connection terminal 116.

  2A is a rear view of the front cover unit 200 to which the operation ring 102 in FIG. 1 is attached. 2B is an exploded rear perspective view of the front cover unit 200 of FIG. 2A. The front cover unit 200 is attached to the front surface of the digital camera 100.

  The front cover unit 200 of FIGS. 2A and 2B includes a click feeling generating mechanism including an operation ring 102, a sheet member 202, a front cover 203, a base member 204, an annular member 207, a steel ball 210, and an urging spring 211. Is provided. The click feeling generating mechanism functions as a click feeling generating means for generating a click feeling. The steel ball 210 functions as an engaging part of the click feeling generating means. A plurality of openings 207b are formed in the annular member 207 in the circumferential direction. The front cover unit 200 also includes a click feeling switching mechanism including a switching operation lever 103 having a protrusion 103a, a switching plate 215, a switching plate support member 216, an urging spring 217, and a steel ball 218. In the present embodiment, when the user operates the click feeling switching mechanism and validates the click feeling generating mechanism, the steel ball 210 of the click feeling generating mechanism engages with the opening 207b when the operation ring 102 is rotated. Repeats the removal and creates a click feeling. In the present embodiment, the opening 207b is formed by a hole that allows the steel ball 210 to be engaged and disengaged, but the same effect can be obtained even if the opening 207b is formed by a recess that allows the steel ball 210 to be engaged and disengaged. Can play.

  The front cover unit 200 includes a torque switching mechanism including a rotation member 205, a friction member 206, a rotation restriction member biasing spring 219, a rotation restriction member 220, and a link member 221. Further, the front cover unit 200 includes a rotation detection unit including a holding member 208 and a detection flexible printed circuit board 209.

  The click feeling generating mechanism, the click feeling switching mechanism, the torque switching mechanism, and the holding member 208 are fixed to the base member 204. The operation ring 102 and the annular member 207 are attached to the base member 204 so as to be rotatable around the optical axis of the digital camera 100. The operation ring 102 is fitted with the annular member 207 with the front cover 203 and the base member 204 interposed therebetween, and rotates around the optical axis together with the annular member 207. The operation ring 102 and the annular member 207 function as an operation member that can be rotated. In the operation ring 102 and the annular member 207, a plurality of engagement arm portions 207 a provided on the annular member 207 engage with engagement claw portions 102 a provided on the operation ring 102, and the annular member 207 is fixed to the operation ring 102. The Between the operation ring 102 and the base member 204, for example, a sheet member 202 formed of a sheet-like PET resin is disposed. The sheet member 202 reduces sliding resistance generated between the operation ring 102 and the base member 204, or reduces rattling that occurs when the operation ring 102 is rotated.

  The base member 204 is formed of, for example, a polycarbonate resin, and is fixed to the front cover 203 with a double-sided tape, an adhesive, or the like. In the present embodiment, the front cover 203 and the base member 204 are separated, but may be integrated according to the materials constituting the front cover 203 and the base member 204. The annular member 207 has a flange portion 207 e extending so as to be orthogonal to the optical axis direction of the digital camera 100. A plurality of openings 207b are formed in the flange portion 207e so as to face the click feeling generation mechanism, and the same number of black printing portions 207c as the openings 207b are formed on the outer peripheral side of the opening 207b. The openings 207b are arranged at equal intervals in the circumferential direction of the annular member 207, and engage with the steel ball 210 when the click feeling generating mechanism is activated. The black printing unit 207 c reduces reflection of light entering the digital camera 100 and is used to detect the rotation direction and rotation amount of the operation ring 102.

  The click sensation generating mechanism and the rotation detection means are arranged separately on the right and left on the bottom side of the digital camera 100 in order to efficiently use the space inside the digital camera 100. The click feeling switching mechanism regulates the movement of the steel ball 210 of the click feeling generating mechanism. The switching plate 215 regulates the protruding amount of the steel ball 210 to the flange portion 207e when the user operates the switching operation lever 103. The switching plate support member 216 supports the switching plate 215. When the switching operation lever 103 is operated, the steel ball 218 urged by the urging spring 117 is fitted into one of the two engagement grooves 204a provided in the base member 204, and the click feeling generation mechanism is effective. The state of being disabled or disabled is maintained.

  One end 221 a of the link member 221 in the torque switching mechanism is interlocked with the operation of the switching operation lever 103. The rotation detecting means is fixed to the base member 204 and faces the flange portion 207e of the annular member 207. A photo reflector (not shown), which is a sensor for detecting an object, is mounted on the detection flexible printed circuit board 209, and the detection flexible printed circuit board 209 is elongated and meandered to facilitate fixing to the base member 204. It has a path 209a.

  FIG. 3 is a partial cross-sectional view of the front cover unit 200 of FIG. 2A.

  In the front cover unit 200 of FIG. 3, a substantially cylindrical rotating member 205 is disposed between the base member 204 and the annular member 207, and a friction member 206 is slightly compressed between the rotating member 205 and the annular member 207. It is arranged in the state that was done. That is, the base member 204, the rotating member 205, the friction member 206, and the annular member 207 are sequentially arranged from the subject side with respect to the optical axis direction. The rotating member 205 is made of, for example, polyacetal resin. The rotating member 205 is disposed so as to be sandwiched between the base member 204 and the annular member 207. The rotating member 205 has a contact portion 205b and a contact portion 205c. The contact portion 205b and the contact portion 205c are formed at both ends of the rotating member 205 so as to face each other. The contact portion 205 b is in contact with the base member 204, and the contact portion 205 c is in contact with the friction member 206. The contactable area of the contact portion 205c is larger than the contactable area of the contact portion 205b. The contact part 205c functions as a first contact part, and the contact part 205b functions as a second contact part. The rotating member 205 rotates independently of the base member 204 and the annular member 207. The friction member 206 is a ring-shaped member, and is fixed to the annular member 207 with a double-sided tape, an adhesive, or the like, and the friction member 206 and the annular member 207 rotate together. The friction member 206 is made of a material having a high friction coefficient such as rubber or felt.

  In the present embodiment, the friction coefficient between the contact portion 205 c of the rotating member 205 and the friction member 206 is larger than the friction coefficient between the contact portion 205 b of the rotating member 205 and the base member 204. Accordingly, the first frictional force generated between the contact portion 205c and the friction member 206 is larger than the second frictional force generated between the contact portion 205b and the base member 204. In order to reduce the second frictional force, for example, a sheet-like member formed of a material having a small friction coefficient such as PET resin may be disposed between the base member 204 and the rotating member 205.

  FIG. 4 is a diagram used to explain the switching plate 215 and the switching plate support member 216 in FIG. 2B. 4A is a perspective view of the switching plate 215, FIG. 4B is a perspective view of the switching plate support member 216, and FIG. 4C is a combination of the switching plate 215 and the switching plate support member 216. FIG. 6 is a perspective view of a click feeling switching mechanism main body 401.

  The switching plate 215 in FIG. 4A is a member in which a material having a spring property, for example, a stainless steel plate is formed in a U-shape. The switching plate 215 includes an upper plate 215a, a lower plate 215b, and a connection portion 215i. The upper plate 215a includes a restriction hole 215c, a restriction hole 215d, a boss hole 215e, and an engagement hole 215f. The lower plate 215b includes a boss hole 215e, an engagement hole 215f, and an inclined surface portion 215g. The lower plate 215b presses the steel ball 210 so that a part of the steel ball 210 protrudes from the restriction hole 215c or the restriction hole 215d formed in the upper plate 215a. The switching plate support member 216 of FIG. 4B includes a boss 216a and an end 216b. In the click feeling switching mechanism main body 401, the switching plate 215 and the switching plate support member 216 are combined so that the boss 216a engages with the boss hole 215e and the connection portion 215i contacts the end portion 216b (FIG. 4C )). When the click feeling switching mechanism main body 401 is attached to the front cover unit 200, the protrusion 103a of the switching operation lever 103 is engaged with the engagement hole 215f. The slope 215g abuts on a slope 214a, which will be described later, to widen the space between the upper plate 215a and the lower plate 215b, and retracts the steel ball 210 from the opening 207b as will be described later.

  In the click feeling switching mechanism main body 401, the switching plate support member 216 is sandwiched between the upper plate 215a and the lower plate 215b. The switching plate support member 216 is a rectangular member, and the length of the upper plate 215a and the lower plate 215b, both of which are rectangular plates, in the longitudinal direction is longer than the length of the switching plate support member 216 in the longitudinal direction. As a result, the end of the upper plate 215a on the restriction hole 215d side and the end of the lower plate 215b on the inclined surface 215g side are easily displaced, and the force applied to the click feeling switching mechanism main body 401 is dispersed and the click feeling switching mechanism main body. The deformation of 401 is suppressed.

  The steel ball 210 constituting the click feeling generating mechanism is sandwiched between the upper plate 215a and the lower plate 215b, and a part of the steel ball 210 protrudes from the restriction hole 215c or the restriction hole 215d. When the click feeling generation mechanism is activated, a part of the steel ball 210 protrudes from the restriction hole 215c (FIG. 5A). When the annular member 207 rotates in response to the rotation operation of the operation ring 102 in a state where a part of the steel ball 210 protrudes from the restriction hole 215c, a part of the steel ball 210 repeatedly engages and disengages with respect to the opening 207b. . Therefore, when the operation ring 102 is rotated in the state shown in FIG. 5A, a click feeling is generated.

  When the click feeling generation mechanism is invalidated, a part of the steel ball 210 protrudes from the restriction hole 215d (FIG. 5B). Since the restriction hole 215d is smaller than the restriction hole 215c, the protruding amount of part of the steel ball 210 from the restricting hole 215d is smaller than the protruding amount of part of the steel ball 210 from the restricting hole 215c. Thereby, only in a state where a part of the steel ball 210 protrudes from the restriction hole 215c, a part of the steel ball 210 can be engaged with the opening 207b. Therefore, even if the annular member 207 rotates in response to the rotation operation of the operation ring 102 in a state where a part of the steel ball 210 protrudes from the restriction hole 215d, a part of the steel ball 210 is engaged with the opening 207b. do not do. Therefore, even if the operation ring 102 is rotated in the state shown in FIG.

  The biasing spring 211 biases the steel ball 210 toward the annular member 207 via the lower plate 215b, and when the click feeling generation mechanism is activated, a part of the steel ball 210 is engaged with the opening 207b. Match.

  In this embodiment, the switching plate 215 is formed of a stainless steel plate in a U-shape, but two plates corresponding to the upper plate 215a and the lower plate 215b are directly attached to the switching plate support member 216, respectively. It may be fixed. In the present embodiment, the upper plate 215a includes the restriction hole 215d, but the restriction hole 215d may be blocked. In this case, the steel ball 210 does not protrude from the upper plate 215a when the click feeling generation mechanism is disabled.

  6 is a cross-sectional view of the click feeling generating mechanism and the click feeling switching mechanism in FIG. 2A. 6A is a cross-sectional view when the click feeling generating mechanism is enabled, and FIG. 6B is a cross-sectional view when the click feeling generating mechanism is disabled.

  In FIG. 6A, a part of the steel ball 210 protrudes from the restriction hole 215c, receives the biasing force of the biasing spring 211 via the lower plate 215b, and is positioned between, for example, two adjacent openings 207b. ing. When the annular member 207 is rotated by rotating the operation ring 102, a part of the steel ball 210 and the opening 207b are repeatedly engaged and disengaged. When a part of the steel ball 210 and the opening 207b are disengaged, the lower plate 215b is displaced by the reaction force that the steel ball 210 receives from the flange portion 207e, and the biasing spring 211 is compressed.

  In FIG. 6B, for example, when the user operates the switching operation lever 103 to invalidate the click feeling generation mechanism that is activated, first, the inclined surface 214a provided on the inclined surface portion 215g and the holding member 214 is displayed. Contact. Next, the slope portion 215g rides on the convex portion 214b provided on the holding member 214, and the lower plate 215b is displaced. Thereby, the space | interval of the upper plate 215a and the lower plate 215b spreads, and the protrusion amount of the steel ball 210 becomes small. As a result, even if the annular member 207 rotates, the top of the steel ball 210 does not engage with the opening 207b. In the present embodiment, when the click feeling generation mechanism is invalidated, even if the annular member 207 rotates, the steel ball 210 is not engaged with or disengaged from the opening 207b, so the click feeling is zero. However, a small click feeling can be generated by adjusting the size of the restriction hole 215d so that the top of the steel ball 210 is slightly engaged with the opening 207b. Therefore, the click feeling switching mechanism can also function as switching means for switching the magnitude of the click feeling.

  FIG. 7 is a partially enlarged view used for explaining the rotation member 205 and the rotation restriction member 220 when the switching operation lever 103 in FIG. 1 is operated and the click feeling generation mechanism is activated. FIG. 7A is a view of the rotating member 205 and the rotation restricting member 220 viewed from the subject side with respect to the optical axis direction. FIG. 7B is a cross-sectional view taken along line AA in FIG.

  In FIG. 7A and FIG. 7B, the rotation restricting member 220 is provided on the side of the rotating member 205 and is configured to be displaceable toward the rotating member 205. The rotation restricting member 220 has a rotation restricting member engaging portion 220a composed of a plurality of teeth protruding toward the rotating member 205 at the end. When the rotation restricting member 220 is displaced toward the rotating member 205 and comes into contact with the rotating member 205, the rotation restricting member engaging portion 220a is a rotating member engaging portion 205a composed of a plurality of teeth formed on the outer edge of the rotating member 205. Engage with. Thereby, the rotation of the rotating member 205 is restricted. That is, the rotation restricting member 220 functions as a restricting unit that restricts the rotation of the rotating member 205 relative to the base member 204.

  When the click feeling generating mechanism is activated, the rotation restricting member 220 is separated from the rotating member 205, and the rotation restricting member engaging portion 220a is disengaged from the rotating member engaging portion 205a. Thereby, the rotation of the rotating member 205 is not restricted. Further, as described above, the friction coefficient between the contact portion 205 c and the friction member 206 is larger than the friction coefficient between the contact portion 205 b and the base member 204. Therefore, when the annular member 207 rotates with the operation ring 102, the rotating member 205 rotates with the annular member 207. As a result, the rotating member 205 rotates with respect to the base member 204. At this time, the rotating member 205 rotates against the second frictional force generated between the contact portion 205b of the rotating member 205 and the base member 204. That is, when the rotation restricting member 220 does not restrict the rotation of the rotating member 205 with respect to the base member 204, when the operating ring 102 and the annular member 207 are rotated, the operating ring 102 and the annular member are resisted against the second frictional force. 207 rotates.

  FIG. 8 is a partial enlarged view used for explaining the rotation member 205 and the rotation restriction member 220 when the switching operation lever 103 in FIG. 1 is operated and the click feeling generation mechanism is invalidated. FIG. 8A is a view of the rotating member 205 and the rotation restricting member 220 viewed from the subject side with respect to the optical axis direction. FIG. 8B is a cross-sectional view taken along line BB in FIG.

  8A and 8B, the rotation restricting member 220 is urged toward the rotating member 205 by the rotation restricting member urging spring 219 and comes into contact with the rotating member 205. At this time, the rotation restricting member engaging portion 220a is engaged with the rotating member engaging portion 205a, and the rotation of the rotating member 205 is restricted by the rotation restricting member 220. That is, the rotating member 205 cannot rotate with respect to the base member 204. At this time, when the operation ring 102 and the annular member 207 are rotated, the operation ring 102 and the annular member 207 are rotated against the first frictional force generated between the contact portion 205 c and the friction member 206.

  As described above, the first frictional force generated between the contact portion 205c of the rotating member 205 and the friction member 206 is greater than the second frictional force generated between the contact portion 205b of the rotating member 205 and the base member 204. large. As a result, the drag caused by the first frictional force generated when the annular member 207 is slid with respect to the rotating member 205 is used as the second friction generated when the rotating member 205 is slid with respect to the base member 204. It can be greater than the drag due to force.

  In the present embodiment, it is possible to switch between sliding the annular member 207 relative to the rotating member 205 or sliding the rotating member 205 relative to the base member 204. Therefore, by operating the switching operation lever 103, the magnitude of the drag generated when operating the operation ring 102 can be changed in two stages. As a result, a comfortable operation feeling for the user can be realized.

  In the present embodiment, when the switching operation lever 103 is operated and the click feeling generation mechanism is enabled, the rotation of the rotating member 205 is not restricted. Thereby, the second frictional force generated when the rotating member 205 is slid with respect to the base member 204 is transmitted to the operation ring 102, but the second frictional force is relatively small. As a result, it is possible to prevent the click feeling generated by the activated click feeling generating mechanism from being canceled, and the user can surely obtain a comfortable operation feeling.

  In the present embodiment, the friction member 206 is in contact with the rotating member 205 over the entire circumference. Thereby, it is possible to suppress fluctuations in the drag generated when the annular member 207 is slid with respect to the rotating member 205.

  When the friction member 206 is formed of a material having elasticity such as rubber, even if a momentary force is applied when the user operates the operation ring 102, the friction member 206 is elastically deformed so that the momentary force applied is applied. The force is relaxed and transmitted to the rotating member 205 and the like. As a result, it is possible to eliminate the need for the user to worry about the force applied to the operation ring 102, and thus the operation ring 102 can be operated naturally.

  Next, a second embodiment of the present invention will be described in detail with reference to the drawings.

  The configuration and operation of the second embodiment of the present invention are basically the same as those of the first embodiment described above, and an intermediate rotation member 301 is disposed between the base member 204 and the rotation member 205. This is different from the first embodiment. In the present embodiment, the rotating member 205 functions as a first rotating member, and the intermediate rotating member 301 functions as a second rotating member.

  Hereinafter, the description of the same configuration and operation as those in the first embodiment will be omitted, and a description of the different configuration and operation will be given.

  FIG. 9 is a cross-sectional view of the front cover unit 400 in the second embodiment of the present invention. The configuration of the front cover unit 400 is substantially the same as the configuration of the front cover unit 200, and only different configurations will be described below.

  In FIG. 9, an intermediate rotating member 301, an intermediate friction member 302 (first friction member), a rotation member 205, and a friction member 206 (second friction member) are disposed between the base member 204 and the annular member 207 on the optical axis. They are arranged in order from the subject side with respect to the direction. The rotating member 205 has a contact portion 205 d, and the contact portion 205 d is in contact with the friction member 206. The intermediate rotation member 301 has a contact portion 301 b, and the contact portion 301 b is in contact with the base member 204. The intermediate friction member 302 is fixed to the intermediate rotation member 301 with a double-sided tape, an adhesive, or the like, and the intermediate rotation member 301 and the intermediate friction member 302 rotate together. Similar to the friction member 206, the intermediate friction member 302 is made of a material having a high coefficient of friction such as rubber or felt.

  In the present embodiment, the friction coefficient between the rotating member 205 and the friction member 206 is larger than the friction coefficient between the rotating member 205 and the intermediate friction member 302. Therefore, the first frictional force generated between the rotating member 205 and the friction member 206 is larger than the second frictional force generated between the rotating member 205 and the intermediate friction member 302. Further, the second frictional force generated between the rotating member 205 and the intermediate friction member 302 is larger than the third frictional force generated between the intermediate rotating member 301 and the base member 204.

  The rotating member 205 and the intermediate rotating member 301 are rotatably supported independently of the base member 204 and the annular member 207. The intermediate rotation member 301 has a protruding engagement portion 301a. The engaging portion 301a can engage with a protruding engaging portion 230b (first rotation restricting portion) formed on the rotation restricting member 230 having substantially the same configuration as the rotation restricting member 220. When the engaging part 230b engages with the engaging part 301a, the rotation of the intermediate rotating member 301 is restricted. Further, the rotation restricting member 230 is formed with an engaging portion 230c (second rotation restricting portion) composed of a plurality of teeth. The engaging portion 230 c engages with the rotating member engaging portion 205 a to restrict the rotation of the rotating member 205.

  In the present embodiment, the outer diameter of the intermediate rotating member 301 is larger than the outer diameter of the rotating member 205, and the distance between the engaging portion 230b and the engaging portion 301a is shorter than the distance between the engaging portion 230c and the rotating member 205. Therefore, when the rotation restricting member 230 is displaced toward the intermediate rotating member 301 or the rotating member 205, first, only the engaging portion 230b is engaged with the engaging portion 301a, and the rotation restricting member 230 rotates the intermediate rotating member 301. Regulate only. Further, when the rotation restricting member 230 continues to be displaced, not only the engaging portion 230b engages with the engaging portion 301a, but also the engaging portion 230c engages with the rotating member engaging portion 205a. At this time, the rotation of the intermediate rotation member 301 and the rotation of the rotation member 205 are restricted. In other words, by adjusting the amount of displacement of the rotation restricting member 230, it is possible to switch between restricting only the rotation of the intermediate rotating member 301 or restricting both the rotation of the intermediate rotating member 301 and the rotation of the rotating member 205. Can do.

  When the engaging portion 230b does not restrict the rotation of the intermediate rotating member 301 and the engaging portion 230c also does not restrict the rotation of the rotating member 205, if the operation ring 102 and the annular member 207 are rotated, the intermediate rotating member 301 and The rotating member 205 rotates together with the annular member 207. At this time, the intermediate rotation member 301 and the rotation member 205 rotate against the third frictional force generated between the contact portion 301 b of the intermediate rotation member 301 and the base member 204. Therefore, the operation ring 102 and the annular member 207 rotate against the third frictional force together with the intermediate rotation member 301 and the rotation member 205.

  When the engagement portion 230b restricts the rotation of the intermediate rotation member 301 and the engagement portion 230c does not restrict the rotation of the rotation member 205, when the operation ring 102 and the annular member 207 are rotated, only the rotation member 205 is annular. It rotates with the member 207. At this time, the rotating member 205 rotates against the second frictional force generated between the rotating member 205 and the intermediate friction member 302. Therefore, the operation ring 102 and the annular member 207 rotate against the second frictional force together with the rotating member 205.

  When the engaging portion 230b restricts the rotation of the intermediate rotating member 301 and the engaging portion 230c restricts the rotation of the rotating member 205, the rotating member 205 and the intermediate member 207 can be rotated even if the operation ring 102 and the annular member 207 are rotated. The rotating member 301 does not rotate. At this time, the operation ring 102 and the annular member 207 rotate against the first frictional force generated between the rotating member 205 and the friction member 206.

  As described above, in the present embodiment, the first frictional force generated when the annular member 207 is slid with respect to the rotating member 205 causes the annular member 207 and the rotating member 205 to move against the intermediate rotating member 301. Greater than the second frictional force generated when sliding. Further, the second frictional force generated when the rotating member 205 is slid with respect to the intermediate rotating member 301 is larger than the third frictional force generated when the intermediate rotating member 301 is slid with respect to the base member 204. . That is, the first friction force is greater than the second friction force, and the second friction force is greater than the third friction force. Thereby, the magnitude | size of the drag when rotating the operation ring 102 and the annular member 207 can be switched in three steps.

  In the present embodiment, the annular member 207 is slid with respect to the rotating member 205, the rotating member 205 is slid with respect to the intermediate rotating member 301, or the intermediate rotating member 301 is slid with respect to the base member 204. It can be switched. Therefore, by operating the switching operation lever 103, the magnitude of the drag generated when operating the operation ring 102 can be changed in three stages. As a result, a more comfortable operation feeling for the user can be realized.

  In the present embodiment, the intermediate rotation member 301 is disposed between the base member 204 and the rotation member 205. However, the intermediate rotation member 301 is arranged in order from the subject side with respect to the optical axis direction. (Rotating member). At this time, it is preferable that two adjacent additional rotating members abut against each other and slide. In addition, it is preferable that the frictional force generated in one combination including two additional rotating members sliding with each other is different from the frictional force generated in another combination including two additional rotating members sliding with each other. Further, it is preferable that a combination of two additional rotating members that slide with each other by the switching operation lever 103 can be appropriately selected. Thereby, the step of changing the magnitude of the drag generated when operating the operation ring 102 can be increased.

  Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments.

100 Digital Camera 102 Operation Ring 103 Switching Operation Lever 204 Base Member 205 Rotating Member 207 Annular Member 220 Rotation Restricting Member 301 Intermediate Rotating Member

Claims (9)

An operation member capable of rotating operation;
A base member rotatably supporting the operation member;
A rotating member that is rotatable with respect to the base member and has a first contact portion that contacts the operating member and a second contact portion that contacts the base member;
Regulating means for regulating rotation of the rotating member relative to the base member,
When the restricting means restricts the rotation of the rotating member relative to the base member, if the operating member is rotated, the first frictional force generated between the operating member and the first contact portion is resisted. The operating member is rotated,
When the restricting means does not restrict the rotation of the rotating member with respect to the base member, if the operating member is rotated, the second frictional force generated between the base member and the second contact portion is resisted. The operating member is rotated,
The electronic apparatus characterized in that the first frictional force is greater than the second frictional force. The operation member is formed with a plurality of holes or recesses in the circumferential direction,
When the operating member is rotated, a click feeling generating means for generating a click feeling by engaging and disengaging the engagement portion with the hole or the recess,
Switching means for switching the magnitude of the click feeling by the click feeling generating means, and further comprising:
When the switching means is switched to reduce the click feeling, the regulating means regulates the rotation of the rotating member relative to the base member, and when the operating member is rotated, the operating member and the first The operation member is rotated against the first frictional force generated between the contact portion and the contact portion,
When the switching means is switched so as to increase the click feeling, if the restricting means does not restrict the rotation of the rotating member relative to the base member and the operating member is rotated, the base member and the second member The electronic device according to claim 1, wherein the operation member is rotated against a second frictional force generated between the contact portion and the contact portion. When the switching means is switched so as to increase the click feeling, when the operation member is rotated, the engaging portion is engaged with or disengaged from the hole or the recess, and a click feeling is generated.
When the switching means is switched so as to reduce the click feeling, when the operation member is rotated, the engagement portion is not engaged with or disengaged from the hole portion or the concave portion, and the click feeling is not generated. The electronic device according to claim 2.   4. The friction coefficient between the operation member and the first contact portion is larger than the friction coefficient between the base member and the second contact portion. 5. Electronic equipment. A friction member that contacts the first contact portion of the rotating member is fixed to the operation member,
4. The friction coefficient between the friction member and the first contact portion is larger than the friction coefficient between the base member and the second contact portion. 5. Electronic equipment.   The electronic device according to claim 1, wherein an area of the first contact portion is larger than an area of the second contact portion. An operation member capable of rotating operation;
A base member rotatably supporting the operation member;
A first rotating member that is rotatable relative to the base member and that contacts the operating member;
A second rotating member that is rotatable relative to the base member and that contacts the base member;
Regulating means for regulating rotation of the first rotating member relative to the base member and rotation of the second rotating member relative to the base member;
When the restricting means restricts rotation of the first rotating member relative to the base member and rotation of the second rotating member relative to the base member, when the operating member is rotated, the operating member and the first rotating member The operating member is rotated against the first frictional force generated between the rotating member and the rotating member,
When the restricting means restricts the rotation of the second rotating member relative to the base member without restricting the rotation of the first rotating member relative to the base member, The operating member is rotated against a second frictional force generated between the first rotating member and the second rotating member;
When the restricting means does not restrict the rotation of the first rotating member relative to the base member and the rotation of the second rotating member relative to the base member, when the operating member is rotated, the base member and the second rotating member The operating member is rotated against a third frictional force generated between the rotating member and the rotating member;
The electronic apparatus, wherein the first frictional force is greater than the second frictional force, and the second frictional force is greater than the third frictional force.   8. The electronic apparatus according to claim 7, wherein a friction coefficient between the operation member and the first rotation member is larger than a friction coefficient between the first rotation member and the second rotation member. A first friction member that contacts the first rotating member is fixed to the second rotating member;
A second friction member that contacts the first rotating member is fixed to the operating member;
8. The electronic apparatus according to claim 7, wherein a friction coefficient between the second friction member and the first rotation member is larger than a friction coefficient between the first friction member and the first rotation member. .