Dial device and imaging device

Abstract

To provide a dial device and an imaging device which can downsize an operation unit.SOLUTION: A left dial lever 4 of an imaging device 1 includes: a rotary part 10; an inner 21; and a lever 31. The rotary part 10 includes: a dial 11 with an opening part 11a; and a holder 12 engaged with the dial 11 and having an opening part 12a. An inner 21 is held by the dial 11 and the holder 12 and is fixed to the imaging device body 2 of the imaging device 1. The lever 31 is held by the rotary unit 10 and the imaging device body 2.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a dial device and an imaging device. [Background technology]

[0002] Patent Document 1 describes a camera rotation operation mechanism comprising a first rotation operation member, a first holder, a click plate, a second rotation operation member, a second holder, an exterior member, a plate-shaped member, and a hollow shaft, in which the first rotation operation member has a shaft portion that can slide inside the hollow shaft, and the second rotation operation member is slidably fitted into a hole portion formed through the exterior member, and a clicking sensation is imparted to the first rotation operation member and the second rotation operation member by a first ball and a first spring, and a second ball and a second spring, respectively.

[0003] Patent document 2 describes a rotary dial unit that includes an operating member having an insertion hole, an axis member, a stop plate, a click plate, a parallel pin, a rotating operating member, an exterior member, a collar member, a rotating sliding member, a click member, and a support member, and when the operating member is rotated, the click member overcomes a step portion, thereby providing a clicking sensation in response to the rotation operation.

[0004] Patent document 3 describes a double dial mechanism for a camera that includes a shutter dial, a shutter code plate, a metering dial, a decorative plate (camera body), a support base, and screws, and in which a click ball and a spring are used to give a clicking sensation to the shutter dial and the metering dial.

[0005] Patent document 4 describes a two-stage dial that includes an upper dial, a lower dial, a locking portion, a screw, and a support portion (a cover member on the top of the main body case), and in which a clicking sensation is imparted to the upper and lower dials by a clicking member (ball, spring). [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2010-067391 A [Patent Document 2] JP 2015-075594 A [Patent Document 3] Japanese Patent Application Publication No. 11-109469 [Patent Document 4] JP 2019-061038 A Summary of the Invention

[0007] One embodiment of the technique of the present disclosure provides a dial device and an imaging device that enable a reduction in the size of an operation unit. [Means for solving the problem]

[0008] (1) A dial device for an imaging device, comprising: a first rotating portion including a first rotating member having an opening and a first engaging member engaging with the first rotating member and having an opening; a first fixed member that is sandwiched between the first rotating member and the first engaging member and is fixed to a case of the imaging device; a second rotating member sandwiched between the first rotating portion and the case; A dial device having a

[0009] (2) A dial device as described in (1), The first fixing member is disposed on the outside of the case. Dial device.

[0010] (3) A dial device according to (1) or (2), a click mechanism provided between the first engagement member and the first fixed member, the click mechanism providing a clicking sensation in response to a rotation operation of the first rotating part; Dial device.

[0011] (4) A dial device according to (3), The click mechanism includes a second engagement member, an elastic member, and a sphere. The second engagement member engages with the first engagement member, and the elastic member and the sphere are disposed in a hole portion of the first fixing member. Dial device.

[0012] (5) A dial device according to (4), The elastic member and the sphere are arranged in a direction along the rotation axis of the first rotating part. Dial device.

[0013] (6) A dial device according to (4) or (5), The relationship between a first diameter, which is an outer diameter of the first rotating member, and a second diameter, which is an arrangement diameter of the hole portion, is 0.3≦2nd diameter / 1st diameter≦0.6 Fulfilling Dial device.

[0014] (7) A dial device according to any one of (1) to (6), The first fixed member is disposed in an opening of the second rotating member. Dial device.

[0015] (8) A dial device according to (7), The outer diameter of the first fixing member is smaller than the outer diameter of the first engagement member. Dial device.

[0016] (9) A dial device according to any one of (1) to (8), When viewed from a direction of a rotation axis of the first rotating part, the first engagement member and the second rotating member at least partially overlap each other. Dial device.

[0017] (10) A dial device according to any one of (1) to (9), The opening of the first rotating member and the opening of the first engaging member are openings provided along the rotation axis of the first rotating part. Dial device.

[0018] (11) A dial device according to any one of (1) to (10), At least one of the first fixed member and a member fixed to the first fixed member is exposed through an opening of the first rotating member and an opening of the first engaging member. Dial device.

[0019] (12) A dial device according to any one of (1) to (11), The second rotating member is sandwiched between the first rotating portion and a second fixed member fixed to the case. Dial device.

[0020] (13) A dial device according to any one of (1) to (12), One of the case and the second rotating member is made of metal and the other is made of resin. Dial device.

[0021] (14) An imaging device comprising the dial device according to any one of (1) to (13). Effect of the Invention

[0022] According to the present invention, it is possible to provide a dial device and an imaging device that enable a reduction in the size of an operation unit. [Brief description of the drawings]

[0023] [Figure 1] FIG. 1 is a front view showing a simplified example of an imaging device 1 according to the present embodiment. [Diagram 2]FIG. 2 is a perspective view showing an example of a left dial lever 4 in the present embodiment. [Diagram 3] FIG. 3 is an exploded perspective view of the left dial lever 4 shown in FIG. 2. [Figure 4] 3 is a vertical sectional view of the left dial lever 4 shown in FIG. 2 taken along a rotation axis X. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. In this embodiment, the terms "upward", "downward", "leftward", "rightward", "forward", and "rearward" are used, but these directions are relative directions set for the imaging device 1 shown in Fig. 1 and the left dial lever 4 of the imaging device 1 shown in Fig. 2 for the sake of convenience.

[0025] <Imaging device according to an embodiment> Fig. 1 is a front view showing a simplified example of an imaging device 1 according to the present embodiment. As shown in Fig. 1, an example of the imaging device of the present invention may be, for example, a single-lens reflex camera or a digital camera. The imaging device 1 includes an imaging device body 2, an imaging lens 3, a left dial lever 4, and a right dial lever 5.

[0026] The imaging lens 3 is provided at the front (front side) of the imaging device body 2. The imaging lens 3 is detachable from the imaging device body 2. A plurality of types of imaging lenses 3 are attached to the imaging device body 2 in an exchangeable manner.

[0027] The left dial lever 4 is a dial lever provided on the upper left side of the imaging device body 2. In contrast, the right dial lever 5 is a dial lever provided on the upper right side of the imaging device body 2. The left dial lever 4 and the right dial lever 5 are used, for example, as dial levers for switching and setting the shooting mode of the imaging device 1. The left dial lever 4 and the right dial lever 5 may also be used as dial levers for setting the shutter speed, ISO sensitivity (ISO: International Organization for Standardization), aperture, etc. of the imaging device 1. Each of the left dial lever 4 and the right dial lever 5 is an example of a "dial device" in the present invention.

[0028] <Dial device of embodiment> FIG. 2 is a perspective view showing an example of the left dial lever 4 in this embodiment. As shown in FIG. 2, the left dial lever 4 is provided, for example, on the upper surface of the imaging device body 2. The left dial lever 4 has a dial 11, which is an example of the "first rotating member" of the present invention, and a lever 31, which is an example of the "second rotating member" of the present invention. The dial 11 and the lever 31 can rotate left or right in the circumferential direction (arrow A direction) around a rotation axis X that passes through the center of the dial 11 and the lever 31 and extends in the up-down direction of the imaging device 1. The dial 11 and the lever 31 are arranged so as to overlap in the direction along the rotation axis X, and the dial 11 is arranged above the lever 31. The dial 11 and the lever 31 are attached to the imaging device body 2 in a state in which they can rotate independently of each other. The left dial lever 4 is a two-stage dial lever having two rotating members (the dial 11 and the lever 31).

[0029] An opening 11a is formed in the center of the dial 11 of the left dial lever 4, the opening 11a being centered on the rotation axis X. A cover 23 is provided at the opening 11a of the dial 11 so as to cover the opening 11a. In addition, a setting item display 11b of the imaging device 1 that can be switched by rotating the dial 11 is provided on, for example, the upper surface of the dial 11.

[0030] <Disassembly of the dial device> FIG. 3 is an exploded perspective view of the left dial lever 4 shown in FIG. 2. As shown in FIG. 3, the left dial lever 4 has a holder 12 that engages with the dial 11 from the lower side of the dial 11. The dial 11 has an opening 11a in the center as described above. The holder 12 also has an opening 12a in the center centered on the rotation axis X, like the dial 11. The holder 12 also has a flange portion 12b on the upper portion, and this flange portion 12b is fixed to the dial 11 by, for example, a screw or an adhesive. The holder 12 rotates together with the dial 11. The holder 12 is an example of a "first engagement member" in the present invention. The rotating portion 10 composed of the dial 11 and the holder 12 is an example of a "first rotating portion" in the present invention.

[0031] The left dial lever 4 also has an inner member 21 that is sandwiched from above and below by the dial 11 and holder 12 that constitute the rotating part 10, and a click mechanism 40. The inner member 21 and the click mechanism 40 are arranged in a direction along the rotation axis X, with the inner member 21 being arranged above the click mechanism 40. The upper surface side of the inner member 21 is sandwiched by the top wall portion of the dial 11. The lower surface side of the click mechanism 40 is sandwiched by the bottom wall portion of the holder 12. The click mechanism 40 is provided between the inner member 21 and the holder 12.

[0032] The inner member 21 is fixed to the imaging device body 2 by a fastening member such as a screw 25. A screw hole (not shown) is formed in the center of the inner member 21. A screw hole 2a is formed in the imaging device body 2. The inner member 21 is fixed to the imaging device body 2 by the screw 25 via the screw hole 2a of the imaging device body 2 and the screw hole of the inner member 21. The inner member 21 is fixed to the imaging device body 2 in a state where it is sandwiched between the dial 11 and the holder 12. The inner member 21 is an example of a "first fixing member" in the present invention.

[0033] The click mechanism 40 has springs 41a, 41b which are an example of the "elastic member" of the present invention, balls 42a, 42b which are an example of the "sphere" of the present invention, and a click metal plate 43 which is an example of the "second engagement member" of the present invention. The springs 41a, 41b, the balls 42a, 42b, and the click metal plate 43 are arranged in a direction along the rotation axis X, with the springs 41a, 41b arranged above the balls 42a, 42b, and the click metal plate 43 arranged below the balls 42a, 42b.

[0034] The springs 41a, 41b and the balls 42a, 42b are disposed in holes 22a, 22b formed in the inner 21. The holes 22a, 22b are formed in the inner 21 so as to extend in a direction along the rotation axis X. The holes 22a and 22b are formed in opposing positions in the circumferential direction of the inner 21 with the rotation axis X in between.

[0035] The click metal plate 43 is fixed to the bottom wall of the holder 12 by an adhesive member such as double-sided tape or adhesive. The click metal plate 43 is formed in an annular shape and is provided with a plurality of recesses 44 at predetermined intervals in the circumferential direction.

[0036] The click mechanism 40 is configured such that the balls 42a, 42b arranged in the holes 22a, 22b of the inner 21 come into contact with the click metal plate 43 by the bias of the springs 41a, 41b. When the dial 11 is rotated by the user, the holder 12 fixed to the dial 11 rotates and the click metal plate 43 fixed to the holder 12 rotates. When the click metal plate 43 rotates, the positions of the multiple recesses 44 of the click metal plate 43 move sequentially in the rotation direction, and therefore, as the recesses 44 move, the recesses 44 that engage with the balls 42a, 42b biased by the springs 41a, 41b change sequentially. In the process of changing the recesses 44 with which the balls 42a and 42b engage, the parts of the click metal plate 43 that are not the recesses 44 and the parts of the recesses 44 alternately engage with the balls 42a and 42b, so that the biasing force of the springs 41a and 41b applied to the balls 42a and 42b changes according to the engagement position with the click metal plate 43. Due to the change in the biasing force of the springs 41a and 41b applied to the balls 42a and 42b, the click mechanism 40 is configured to give a clicking sensation to the rotation operation of the dial 11. The clicking sensation is a response given to the user at a specific rotation angle (for example, a periodic rotation angle) in response to the user's rotation operation of the dial 11. For example, the clicking sensation is an operation sensation in which the force required for rotation repeatedly becomes stronger and weaker depending on the amount of rotation of the dial 11.

[0037] The opening 11a of the dial 11 and the opening 12a of the holder 12 are openings provided along the rotation axis X. Therefore, the inner 21 sandwiched between the dial 11 and the holder 12 is provided so as to be exposed through the opening 11a of the dial 11 and the opening 12a of the holder 12 when the left dial lever 4 is viewed from above. However, in the left dial lever 4 shown in FIG. 3, a cover 23 is attached to the upper surface of the inner 21 by, for example, double-sided tape 24 so as to cover the opening 11a of the dial 11. Therefore, when the left dial lever 4 is viewed from above, the cover 23 is provided so as to be exposed through the opening 11a of the dial 11. The cover 23 is formed of, for example, a metal.

[0038] The lever 31 disposed below the dial 11 has an upper surface side that engages with the holder 12 of the rotating unit 10. The lever 31 is formed in an annular shape and has an opening 31a in the center centered on the rotation axis X. The lever 31 is formed in an annular shape of a size such that an inner portion of the lever 31 overlaps with the flange portion 12b of the holder 12 when viewed from the direction of the rotation axis X. The lever 31 has an upper surface side that engages with the flange portion 12b of the holder 12. The lever 31 also has an operation knob portion 32 that is operated when the lever 31 rotates. The operation knob portion 32 is provided so as to protrude radially outward from the outer periphery of the dial 11 when viewed from the direction of the rotation axis X. The lever 31 is formed of, for example, resin.

[0039] Moreover, the left dial lever 4 has a sub-inner 26, which is an example of a "second fixed member" of the present invention, below the lever 31. The sub-inner 26 is formed in an annular shape. The sub-inner 26 is fixed to the imaging device body 2. A recess 2b recessed in a direction along the rotation axis X is formed in the imaging device body 2, and the sub-inner 26 is fixed within the recess 2b of the imaging device body 2. The upper surface side of the sub-inner 26 engages with the lower surface side of the lever 31. The sub-inner 26 is formed of, for example, resin. The imaging device body 2 to which the sub-inner 26 is fixed is formed of, for example, metal.

[0040] In this manner, the lever 31 is sandwiched from the upper and lower sides by the holder 12 of the rotating portion 10 and the sub-inner 26 fixed to the image pickup device body 2 .

[0041] Furthermore, the left dial lever 4 has a circuit board 51 below the lever 31. The circuit board 51 is disposed in the recess 2b of the imaging device body 2 and fixed to the imaging device body 2. The circuit board 51 is configured, for example, from a flexible printed circuit board, and detects the setting states of the dial 11 and the lever 31 in association with their rotational operations.

[0042] <Cross-sectional structure of the dial device> Fig. 4 is a vertical cross-sectional view of the left dial lever 4 shown in Fig. 2 cut in the direction along the rotation axis X. As shown in Fig. 4, when the left dial lever 4 is viewed in the direction of the rotation axis X and the dial 11 and holder 12 that constitute the rotating part 10 are compared, the dial outer diameter R1 that is the outer diameter of the dial 11 is larger than the holder outer diameter R3 that is the outer diameter of the holder 12. In addition, the holder 12 that constitutes the rotating part 10 together with the dial 11 has a flange portion 12b fixed to the dial 11 by a screw 13.

[0043] The inner member 21 fixed to the imaging device body 2 by the screw 25 is sandwiched in the space formed by the opening 11a of the dial 11 and the opening 12a of the holder 12. The inner member outer diameter R4, which is the outer diameter of the inner member 21, is smaller than the holder outer diameter R3 of the holder 12. The inner member 21 has holes 22a and 22b formed in a direction along the rotation axis X, and the spring 41a and ball 42a constituting the click mechanism 40 are arranged in the hole 22a, and the spring 41b and ball 42b are arranged in the hole 22b. In addition, the click metal plate 43 constituting the click mechanism 40 is fixed to the holder 12 of the rotating part 10, and the balls 42a and 42b arranged in the holes 22a and 22b of the inner member 21 are biased toward the click metal plate 43 by the springs 41a and 41b. The balls 42a and 42b biased by the springs 41a and 41b engage with the recesses 44 formed in the click metal plate 43.

[0044] The lever 31 disposed below the dial 11 is disposed in a state in which a radially inner portion of the lever 31 overlaps with the flange portion 12b of the holder 12 when viewed from the direction of the rotation axis X. The lever 31 is clamped (positioned) at its upper surface by the flange portion 12b of the holder 12 and at its lower surface by the sub-inner 26 fixed to the imaging device body 2. A protrusion 31b provided on the upper surface of the lever 31 engages with the flange portion 12b of the holder 12. A protrusion 31c provided on the lower surface of the lever 31 engages with the upper surface of the sub-inner 26. The lever 31 is clamped (positioned) at its inner surface by the outer peripheral surface of the holder 12 and at its outer surface by the inner peripheral surface of the sub-inner 26.

[0045] The inner member 21 sandwiched between the dial 11 and the holder 12 has its lower portion disposed within the opening 31a of the lever 31 together with the holder 12. In addition, the inner member 21 sandwiched between the dial 11 and the holder 12 has its upper portion exposed from the recess 2b of the imaging device body 2 together with the dial 11 and the holder 12, and is disposed outside (on the upper side) of the recess 2b.

[0046] For example, as shown in FIG. 4, the outer diameter of the dial 11 is the dial outer diameter R1, and the arrangement diameter of the holes 22a, 22b formed in the inner 21 is the hole-to-hole diameter R2. In this case, the dial outer diameter R1 and the hole-to-hole diameter R2 are formed to satisfy the relationship of 0.3≦hole-to-hole diameter R2 / dial outer diameter R1≦0.6. The dial outer diameter R1 is, for example, 20 mm. The hole-to-hole diameter R2 is, for example, 9 mm. The diameter of the balls 42a, 42b is, for example, 1.5 mm. The dial outer diameter R1 is an example of the "first diameter" in the present invention. The hole-to-hole diameter R2 is an example of the "second diameter" in the present invention.

[0047] As described above, in the left dial lever 4 of this embodiment, the inner 21, which is a non-rotating member, is disposed as an axis member in the center of the left dial lever 4 in the radial direction, and the upper and lower parts and the outer periphery of the inner 21 disposed in the center are sandwiched between the dial 11 and the holder 12, which are configured as an integral rotating member (rotating part 10). With this configuration, even if the inner 21, which is a non-rotating member, is disposed in the center of the left dial lever 4, it is possible to suppress an increase in the radial size of the left dial lever 4. Specifically, by configuring the relationship between the dial outer diameter R1 and the hole diameter R2 to satisfy 0.3≦hole diameter R2 / dial outer diameter R1≦0.6, it is possible to suppress the radial size of the inner 21, which is a non-rotating member disposed in the center, and to suppress an increase in the radial size of the left dial lever 4.

[0048] Furthermore, in the left dial lever 4, lever 31, which is a rotating member arranged below the dial 11, is held on its upper surface by holder 12, on its lower surface by sub-inner 26, on its inner surface by holder 12, and on its outer surface by sub-inner 26. With this configuration, even if the dial lever has a two-stage structure having the dial 11 and lever 31 as rotating members, it is possible to prevent the size of the left dial lever 4 from increasing in the radial direction and height (rotation axis X) direction.

[0049] Therefore, by configuring the dial lever in this way, the size of the left dial lever 4, which is the operation section of the imaging device 1, can be reduced.

[0050] Furthermore, the left dial lever 4 is configured such that a resin sub-inner 26 is disposed below the lever 31, which is a rotating member, and the lower surface side of the lever 31 is clamped by the sub-inner 26. Therefore, when the lever 31 is rotated, the lever 31 comes into contact with the resin sub-inner 26 and does not come into contact with the metallic imaging device body 2, thereby preventing wear and improving the durability of the lever 31.

[0051] Furthermore, in the left dial lever 4, a metal cover 23 provided as a separate member from the inner member 21 is attached to the upper surface of the inner member 21 at the opening 11a of the dial 11 that is exposed when viewed from above. With this configuration, it is possible to mark setting items, index lines, etc. on the metal cover 23, which is a non-rotating member, and the design and convenience of the left dial lever 4 can be improved.

[0052] <Modification> In the above embodiment, the inner 21 is fixed to the imaging device body 2 with the screw 25, but the present invention is not limited to this. The inner 21 may be fixed to the imaging device body 2 with, for example, an adhesive. This makes it possible to omit the screw 25 and reduce the size of the left dial lever 4 in the radial direction.

[0053] In the above embodiment, the elastic member and the sphere of the click mechanism 40 are configured by the springs 41a, 41b and the balls 42a, 42b, but this is not limiting. For example, a leaf spring may be used instead of the elastic member (spring) and the sphere (ball). This allows the size (height) of the click mechanism 40 in the direction of the rotation axis X to be reduced.

[0054] In the above embodiment, the cover 23 is attached to the upper surface of the inner member 21 with the double-sided tape 24, but the present invention is not limited to this. For example, the inner member 21 and the cover 23 may be integrated into one body. This can reduce the size (height) of the left dial lever 4 in the direction of the rotation axis X.

[0055] In the above embodiment, the click metal plate 43 is fixed to the upper surface of the holder 12 by an adhesive member or the like, but the present invention is not limited to this. For example, the holder 12 and the click metal plate 43 may be integrated together. This can reduce the size (height) of the left dial lever 4 in the direction of the rotation axis X.

[0056] In the above embodiment, the sub-inner 26 is fixed inside the recess 2b of the imaging device body 2, but the present invention is not limited to this. For example, the sub-inner 26 may be configured to be integrated with the imaging device body 2. This allows the size (height) of the left dial lever 4 in the direction of the rotation axis X and the size in the radial direction to be reduced.

[0057] In the above embodiment, the case where two sets of springs and balls (springs 41a, 41b, balls 42a, 42b) are provided as the springs and balls that constitute the click mechanism 40 has been described, but the present invention is not limited thereto. For example, the number of springs and balls that constitute the click mechanism 40 may be one set, or three or more sets. By providing three or more sets of springs and balls, it is possible to reduce the size of each spring in order to obtain the same clicking sensation when operating the dial 11. This allows the size (height) of the left dial lever 4 in the direction of the rotation axis X and the size in the radial direction to be reduced. When a configuration is adopted in which one set of springs and balls is provided, the cost of materials can be reduced.

[0058] In the above embodiment, the case where the sub-inner 26 is made of resin and the imaging device body 2 is made of metal has been described, but the present invention is not limited to this. For example, the sub-inner 26 may be made of metal and the imaging device body 2 may be made of resin.

[0059] In the above embodiment, a case where the sub-inner 26 is provided to hold the lower side of the lever 31 has been described, but the present invention is not limited to this. For example, a configuration may be adopted in which the sub-inner 26 is not provided. In this case, the lever 31 is held from the upper and lower sides by the holder 12 of the rotating part 10 and the imaging device main body 2 itself.

[0060] In the above embodiment, the dial device is the left dial lever 4, but the present invention is not limited to this. The configuration of the dial device described above may be applied to the right dial lever 5. [Explanation of symbols]

[0061] 1. Imaging device 2. Imaging device body 2a screw hole 2b,44 Recess 3 Imaging lens 4 Left dial lever 5 Right dial lever 10 Rotating section 11 Dial 11a,12a,31a opening 11b Setting item display 12 Holder 12b Flange part 13,25 Screw 21 Inner 22a,22b Hole 23 Cover 24 Double-sided tape 26 Sub-inner 31 Lever 31b,31c protrusion 32 Operation knob section 40 Click mechanism 41a, 41b Spring 42a, 42b Ball 43 Click Sheet Metal 51 Circuit Board R1 Dial outer diameter R2 Hole diameter R3 Holder outer diameter R4 Inner outer diameter

Claims

1. A dial device for an imaging device, comprising: a first rotating portion including a first rotating member having an opening and a first engaging member engaging with the first rotating member and having an opening; a first fixed member that is sandwiched between the first rotating member and the first engaging member and is fixed to a case of the imaging device; a second rotating member sandwiched between the first rotating portion and the case; A dial device having

2. 2. The dial device according to claim 1, The first fixing member is disposed on the outside of the case. Dial device.

3. 2. The dial device according to claim 1, a click mechanism provided between the first engagement member and the first fixed member, the click mechanism providing a clicking sensation in response to a rotation operation of the first rotating part; Dial device.

4. 4. The dial device according to claim 3, The click mechanism includes a second engagement member, an elastic member, and a sphere. the second engaging member engages with the first engaging member, and the elastic member and the sphere are disposed in a hole portion of the first fixing member; Dial device.

5. The dial device according to claim 4, The elastic member and the sphere are arranged in a direction along the rotation axis of the first rotating part. Dial device.

6. The dial device according to claim 4, The relationship between a first diameter which is an outer diameter of the first rotating member and a second diameter which is an arrangement diameter of the hole portion is as follows: 0.3≦second diameter / first diameter≦0.6 Fulfilling Dial device.

7. 2. The dial device according to claim 1, The first fixed member is disposed in an opening of the second rotating member. Dial device.

8. The dial device according to claim 7, The outer diameter of the first fixing member is smaller than the outer diameter of the first engaging member. Dial device.

9. 2. The dial device according to claim 1, When viewed from a direction of a rotation axis of the first rotating part, the first engagement member and the second rotating member at least partially overlap each other. Dial device.

10. 2. The dial device according to claim 1, The opening of the first rotating member and the opening of the first engaging member are openings provided along the rotation axis of the first rotating part. Dial device.

11. 2. The dial device according to claim 1, At least one of the first fixed member and a member fixed to the first fixed member is exposed through an opening of the first rotating member and an opening of the first engaging member. Dial device.

12. 2. The dial device according to claim 1, The second rotating member is sandwiched between the first rotating portion and a second fixed member fixed to the case. Dial device.

13. 2. The dial device according to claim 1, One of the case and the second rotating member is made of metal and the other is made of resin. Dial device.

14. An imaging device comprising the dial device according to claim 1 .

Images