JP6380621B2 - Rotating dial unit - Google Patents

Description

  The present invention relates to a rotary dial unit.

A two-stage dial switch having a lock lever that locks the rotation of the upper dial is known (see, for example, Patent Document 1).
[Prior art documents]
[Patent Literature]
[Patent Document 1] JP-A-9-43705

  When the number of dial positions is increased, the area of the wiring pattern on the pattern circuit board for detecting the position increases as the number of positions increases. Since the space available for fixing with the lock mechanism is relatively reduced, it is difficult to provide the lock mechanism without increasing the outer dimension of the dial.

  A rotary dial unit with a lock function according to one aspect of the present invention includes a support member having a bearing, a rotary dial having a rotary shaft fitted to the bearing, a sliding portion and a rotary shaft that slide in the axial direction of the rotary shaft. An operating member that follows a rotating operation of the rotary dial, an urging member that urges the operating member in a direction away from the support member, and protrudes in the rotational axis direction. A locking claw that is mounted on the outer peripheral portion of the disc portion and slides relative to the rotation of the disc portion, and a notch portion that regulates the rotation of the locking claw in the circumferential direction. A locking claw fixing member fixed to the support member, and a lock plate having a receiving hole for receiving the protrusion in the circumferential direction and rotating together with the rotary dial, and resists the biasing force of the biasing member. When the operating member is pressed, the lock claw slides in the notch on the axial direction. By protrusion is disengaged from the receiving hole, we allow the rotation operation of the rotary dial.

  The summary of the invention does not enumerate all the features of the present invention. In addition, a sub-combination of these feature groups can also be an invention.

It is a figure which shows typically the upper surface of a camera provided with the rotary dial unit which concerns on this embodiment. It is a disassembled perspective view of a rotary dial unit. It is a disassembled perspective view of a rotary dial unit. It is AA sectional drawing of the rotary dial unit in FIG. It is BB sectional drawing of the rotary dial unit in FIG. It is a figure explaining the positional relationship of a rotating shaft, a lock claw, and a fixed shaft. It is a figure explaining the other structure which provides the click feeling of an upper dial. It is a figure explaining the other structure of a rotary dial unit.

  Hereinafter, the present invention will be described through embodiments of the invention, but the following embodiments do not limit the invention according to the claims. In addition, not all the combinations of features described in the embodiments are essential for the solving means of the invention.

  FIG. 1 is a diagram schematically showing an upper surface of a camera including a rotary dial unit according to the present embodiment. The camera 10 is configured by attaching a lens unit 14 to a camera unit 12. In addition, the near side of the drawing where an operation member 30 or the like, which will be described later, appears in the appearance is defined as the upper surface side or the upper side, and the opposite side to the drawing is defined as the lower surface side or the lower side.

  The camera 10 converts an image formed by subject light incident through the optical system of the lens unit 14 into an electrical signal and records it. The camera unit 12 includes a rotary dial unit 20. On the upper surface of the exterior member of the camera unit 12, there are an operation member 30 that constitutes a part of an upper dial, which will be described later, and a rotation operation member 40, which forms a part of a lower dial, which will be described later, and is wider than the operation member 30. Overlaid on the same axis. The upper dial is used for setting the shutter speed, for example. The lower dial is used, for example, for setting ISO sensitivity. The width of the operation member 30 and the width of the rotation operation member 40 may be the same.

  An insertion hole is formed in the axial direction at the center of the operation member 30 and the rotation operation member 40. An operation member 60 described later is disposed between the operation member 30 and the rotation operation member 40. A part of the operating member 60 protrudes from the insertion hole to the upper side of the exterior member. As will be described in detail later, the operating member 60 functions as a lock release button for releasing the lock of the rotation of the upper dial. Further, a pressing operation member 190 is disposed on the upper surface of the exterior member of the camera unit 12 at a position away from the operation member 30 and the rotation operation member 40. As will be described in detail later, the pressing operation member 190 functions as an unlock button for unlocking the rotation of the lower dial. The upper dial, the lower dial, the operation member 60, and the pressing operation member 190 described above constitute a part of the rotary dial unit 20.

  2 and 3 are exploded perspective views of the rotary dial unit 20. In particular, FIG. 2 is an overhead view, and FIG. 3 is an elevation view. As illustrated, the rotary dial unit 20 includes an operation member 30, a lock plate 50, a cap 58, an operation member 60, a lock claw 70, a lock claw fixing member 100, a biasing member 80, a shaft member 90, and a screw 110. Furthermore, the rotation operation member 40, the sealing member 120, the exterior member 130, the collar member 140, the rotation sliding member 150, the click member 160, the contact brush 170, the support member 180, the pressing operation member 190, the sealing member 200, the pattern circuit. A substrate 210, a contact brush 220, a retaining plate 230, a click plate 240, a parallel pin 250, a lock member 260, a biasing member 270, a click member 280, and a support member 290 are included.

  The operation member 30 is rotated by the user. The operation member 30 has a cylindrical shape as a whole, and has an insertion hole 32 in the center. Moreover, it has the recessed part 34 in the lower surface. The lock plate 50, the operation member 60, the lock claw 70, and the urging member 80 are disposed between the operation member 30 and the shaft member 90.

  The lock plate 50 has a cylindrical shape as a whole, and has a recess 52 at the center of the upper surface. The recess 52 has an insertion hole 54 corresponding to the insertion hole 32 of the operation member 30 at the center. The lock plate 50 has a plurality of housing holes 56 in the circumferential direction for housing the protrusions 72 of the lock claws 70 on the lower surface. The lock plate 50 is accommodated in the recess 34 of the operation member 30. Note that the lock plate 50 does not necessarily have a plurality of receiving holes 56. That is, you may have only one accommodation hole 56. FIG. What is necessary is just to have corresponding to the position to lock among the positions of the operation member 30. FIG.

  The actuating member 60 includes a disc portion 62 extending in a direction orthogonal to a rotation axis, which will be described later, a projecting portion 65 projecting upward from the center of the disc portion 62, and the opposite side or the lower side of the projecting portion 65. And a sliding portion 66 that slides in the axial direction of the rotating shaft 94. The disc portion 62 of the operating member 60 has a recess 68 on the lower surface. The protruding portion 65 has a two-stage structure including an upper portion 63 and a lower portion 64 that is slightly wider than the upper portion 63. A cap 58 is put on the upper portion 63.

  The lock claw 70 has a protrusion 72 protruding in the rotation axis direction and a pair of claw portions 74 protruding in a direction orthogonal to the rotation axis direction.

  The lock claw fixing member 100 has a cylindrical shape as a whole, and has a recess 102 at the center of the upper surface. The recess 102 has an insertion hole at the center. The lock claw fixing member 100 has a notch 106 corresponding to the shape of the lock claw 70 on the outer peripheral wall. The lock claw fixing member 100 has a ring part 108 surrounding the disk part at the upper end. The ring portion 108 is formed to have substantially the same diameter as the lock plate 50.

  The urging member 80 is installed between the operation member 60 and the shaft member 90. The biasing member 80 is a compression coil spring, for example.

  The shaft member 90 includes a disk portion 92 that is narrower than the disk portion 62 of the operating member 60 and a rotating shaft 94 that protrudes in the opposite direction to the operation member 30 side, that is, the lower side. The shaft member 90 has a sliding hole 96 formed from the center of the upper surface of the disk portion 92 to the middle of the rotation shaft 94. A through hole 98 that penetrates in a direction orthogonal to the axial direction is formed at the lower end of the rotating shaft 94. As will be described in detail later, the shaft member 90 is assembled to the operation member 30 and constitutes the upper dial 22 together with the operation member 30. The shaft member 90 is assembled to the operation member 30 with a screw 110.

  The rotation operation member 40 is rotated by a user. The rotation operation member 40 has a columnar shape that is wider than the operation member 30. The rotation operation member 40 has a recess 42 around the rotation axis on the upper surface, that is, in the center. The recess 42 has an insertion hole 44 corresponding to the insertion hole 104 of the lock claw fixing member 100 at the center. The rotation operation member 40 has a circumferential groove 46 on the outer edge portion of the lower surface. Moreover, the step part 48 is provided in the circumferential direction along the insertion hole of the lower surface.

  The sealing member 120 is disposed on the stepped portion 48 of the rotation operation member 40. In the present embodiment, the sealing member 120 is an O-ring.

  The exterior member 130 is a cover member that configures the appearance of the camera unit 12. The exterior member 130 has an opening 132.

  The collar member 140 has an annular shape as a whole. The collar member 140 includes an annular substrate part 142 and an annular wall part 144 formed on the upper surface of the substrate part 142. A plurality of step portions 146 are formed on the inner wall of the wall portion in the circumferential direction.

  The rotary sliding member 150 includes a disk portion 152 and a click member accommodating portion 154 that accommodates the click member 160. The disc part 152 has a first hole 156 corresponding to the insertion hole 44 of the rotation operation member 40. The disc part 152 has a plurality of receiving holes 158 formed in the circumferential direction along the outer edge. The click member accommodating portion 154 is formed on the upper surface of the disc portion 152. On the other hand, an accommodating portion 159 that accommodates the contact brush 170 is formed on the lower surface of the disc portion 152. The rotary sliding member 150 is assembled to the rotary operation member 40 with a screw, for example, and constitutes the lower dial 24 together with the rotary operation member 40. Note that the disc portion 152 does not necessarily have a plurality of the accommodation holes 156. That is, only one receiving hole 156 may be provided. What is necessary is just to have corresponding to the position to lock among the positions of the rotation operation member 40. FIG.

  The support member 180 includes a substrate portion 181, a cylindrical bearing 182 formed to protrude upward from the center portion of the substrate portion 181, and a step portion 183. The substrate unit 181 has a first hole 184. The step portion 183 has a second hole 185 for attaching the pressing operation member 190 and the sealing member 200.

  The pattern circuit board 210 is a flexible board in this embodiment. The pattern circuit board 210 is bent in two stages. The upper stage 212 and the lower stage 214 have a through hole 215 at the center. A circuit pattern 213 is formed on the upper surface of the upper stage 212 so as to surround the through hole 215. A circuit pattern 216 is formed on the lower surface of the lower stage 214 so as to surround the through hole 215. A membrane SW may be used as the pattern circuit board 210.

  The retaining plate 230 has a disk shape as a whole. The retaining plate 230 has a through-hole 232 that penetrates in a direction orthogonal to the axial direction at the center. An accommodation portion 234 that accommodates the contact brush 220 is formed on the upper surface of the retaining plate 230. On the other hand, a groove portion 236 for arranging the parallel pin 250 is formed in the radial direction on the lower surface of the retaining plate 230.

  The click plate 240 corresponds to the shape of the retaining plate 230 and forms a disc shape as a whole. The click plate 240 has a plurality of step portions 242 formed in the circumferential direction along the outer edge.

  The lock member 260 includes a rod-like lock claw 262 that is elongated in the axial direction, a base portion 264, an upper protruding portion 266 as a sliding portion, and a lower protruding portion 268. The lower end of the lock claw 262 is fixed to one end of the base material portion 264. An upper protruding portion 266 and a lower protruding portion 268 are fixed to the other end of the base material portion 264. The upper protrusion 266 and the lower protrusion 268 may be integrally formed.

  The urging member 270 is installed between the lock member 260 and the support member 290. The biasing member 270 is, for example, a compression coil spring.

  The support member 290 includes a click member accommodating portion 292 that accommodates the click member 280 and an urging member support portion 294 that supports the urging member.

  4 is a cross-sectional view of the rotary dial unit 20 taken along the line AA in FIG. In particular, the state where the upper dial 22 is locked is shown.

  The lock plate 50 is disposed and fixed in the recess 34 of the operation member 30. The operation member 60 is disposed below the lock plate 50. The protrusion 65 of the actuating member 60 is inserted into the insertion hole 54 of the lock plate 50 and the insertion hole 32 of the operation member 30. The tip of the protrusion 65 protrudes from the insertion hole 32. The portion protruding from the insertion hole 32 constitutes a pressing portion that is pressed by the user. The protrusion 65 has a groove formed in the circumferential direction on the lower surface.

  The shaft member 90 is disposed below the operation member 60. A part of the shaft member 90 is accommodated in the recess 68 of the actuating member 60. The sliding portion 66 of the actuating member 60 has a cylindrical shape extending downward from the back surface of the tip of the protruding portion 65. The sliding portion 66 is slidably fitted into the sliding hole 96 of the shaft member 90. Thereby, the action | operation member 60 can slide to an up-down direction. The urging member 80 is disposed in a state of being passed through the sliding portion 66. One end of the urging member 80 is in contact with the back surface of the protruding portion 65, and the other end is in contact with the upper surface of the disc portion 92 of the shaft member 90. The urging member 80 urges the operation member 60 toward the operation member 30 side.

  The shaft member 90 is integrated and fixed together with the operating member 60, the lock plate 50, and the operation member 30 by screws 110. Therefore, in a state where the lock of the upper dial 22 is released, when the operation member 30 is rotated, the whole fixed by the screw 110 rotates as a unit.

  The lock claw 70 is disposed on the side portion of the operation member 60. When the claw portion 74 of the lock claw 70 sandwiches the outer peripheral portion of the disc portion 62, the lock claw 70 is attached to the outer peripheral portion of the disc portion 62.

  The lock claw fixing member 100 is positioned on the lower side of the lock plate 50 such that the lock claw 70 is positioned in the notch 106. The operation member 60 and the shaft member 90 are accommodated in the recess 102 of the lock claw fixing member 100. That is, the inner wall of the recess 102 surrounds the operating member 60 and the shaft member 90.

  As shown in the figure, when the operating member 60 is not pressed, the operating member 60 is urged upward by the urging member 80, so that the lock claw 70 attached to the operating member 60 is also incidentally upward. Be energized. As a result, the protrusion 72 of the lock claw 70 is accommodated in the accommodation hole 56. Therefore, the upper dial 22 is not allowed to rotate.

  When the operation member 60 is pressed against the urging force of the urging member 80, the operation member 60 slides downward. Since the lock claw 70 is attached to the operation member 60, the lock claw 70 is slid downward along the notch 106 along with the operation member 60. That is, the protrusion 72 of the lock claw 70 moves away from the accommodation hole 56. Then, when the protrusion 72 of the lock claw 70 is detached from the accommodation hole 56, the rotation operation of the upper dial 22 is permitted. That is, the upper dial 22 is unlocked.

  Here, the operation member 30, the lock plate 50, and the operation member 60 are integrated. Therefore, if the operating member 60 and the lock claw 70 are simply integrated, the lock claw 70 rotates together with the rotation of the upper dial 22. In the present embodiment, when the lock claw 70 is received in the notch 106 of the lock claw fixing member 100, the movement of the lock claw 70 in the rotational direction is restricted. Therefore, when the operation member 60 is pressed, the lock claw 70 is lowered together with the operation member 60, but even if the operation member 30 is rotated in that state, the lock claw 70 does not move accompanying the rotation direction. That is, the lock claw 70 slides relative to the rotation of the disk portion.

  Since the upper dial 22 for setting the shutter speed has more positions than a general mode dial, the area occupied by the circuit pattern 213 on the pattern circuit board 210 increases. Then, it becomes difficult to attach the pattern circuit board 210 and the lock mechanism using screws, for example, due to space. In the present embodiment, the locking mechanism that locks the upper dial 22 in a small space by hooking the claw portion 74 of the lock claw 70 to the outer peripheral portion of the disc portion 62 and accommodating the lock claw 70 in the notch portion 106. Is realized.

  The support member 180 is disposed below the lock claw fixing member 100. The rotation shaft 94 of the shaft member 90 is fitted to the bearing 182 of the support member 180. The bearing 182 of the support member 180 is fitted into the insertion hole 104 of the lock claw fixing member 100. Thereby, the lock claw fixing member 100 is fixed to the support member 180.

  The rotation operation member 40 is disposed below the lock claw fixing member 100 in a state where the bearing 182 is inserted through the insertion hole 44. The recess 42 of the rotation operation member 40 accommodates a part of the lock claw fixing member 100. Thereby, the height of the rotary dial unit 20 can be suppressed. The rotation operation member 40 is only assembled to the bearing 182 and is not slidably fitted to the support member 180.

  The sealing member 120 is provided between the rotation operation member 40 and the bearing 182 of the support member 180. Thereby, the space closer to the support member 180 than the rotation operation member 40 is sealed.

  The rotary sliding member 150 is disposed below the rotary operation member 40 in a state where the bearing is inserted into the first hole 156. The rotary sliding member 150 is assembled to the rotary operation member 40 with a screw, for example, and constitutes the lower dial 24 together with the rotary operation member 40. The rotary sliding member 150 is integrated and fixed together with, for example, a screw together with the rotary operation member 40. Therefore, when the rotation operation member 40 is rotated, the rotation sliding member 150 rotates accompanying the rotation of the rotation operation member 40. The rotary sliding member 150 is slidingly fitted to the support member 180 on the outside.

  The retaining plate 230 is disposed below the support member 180. Here, the shaft member 90 has a protruding portion 97 that penetrates the bearing 182 and protrudes downward. The protruding portion 97 is fitted into the through hole 232 of the retaining plate 230. The protrusion 97 has a through hole 98 that penetrates in a direction orthogonal to the axial direction. The parallel pin 250 is disposed along the groove 236 of the retaining plate 230 and penetrates the through hole 98. That is, the retaining plate 230 supports the parallel pin 250. Thereby, the retaining plate 230 fixes the protruding portion 97. Therefore, it is possible to prevent the rotating shaft 94 from coming off to the operation member 30 side. As described above, by using the parallel pin 250, it is possible to fix the protruding portion 97 in a smaller space than in the case of using a screw.

  The pattern circuit board 210 is fixed and supported on the support member 180 by adhesion or the like. The contact brush 170 is provided on the lower surface of the rotary sliding member 150, that is, the surface facing the upper surface of the support member 180. The upper stage 212 of the pattern circuit board 210 is disposed on the upper surface of the support member 180. The contact brush 170 and the upper stage 212 of the pattern circuit board 210 are disposed to face each other. The upper stage 212 of the pattern circuit board 210 outputs a signal corresponding to the rotational position of the rotation operation member 40 when the contact brush 170 slides.

  The contact brush 220 is provided on the upper surface of the retaining plate 230, that is, the surface facing the lower surface of the support member 180. The lower stage 214 of the pattern circuit board 210 is disposed on the lower surface of the support member 180. The contact brush 220 and the lower stage 214 of the pattern circuit board 210 are disposed to face each other. The lower stage 214 of the pattern circuit board 210 outputs a signal corresponding to the rotational position of the operation member 30 when the contact brush 220 slides.

  The exterior member 130 is disposed so as to surround the support member 180, the rotary sliding member 150, and the collar member 140. The support member 180, the rotary sliding member 150, the collar member 140, and the like are accommodated in the exterior member 130. The collar member 140 is disposed along the inner wall of the opening 132 of the exterior member 130. The opening end of the exterior member 130 is fitted into the circumferential groove 46 of the rotation operation member 40 together with the first wall 147 which is one end of the collar member 140. In addition, the collar member 140 includes a fixing portion 148 that is fixed to the exterior member 130 and a second wall 149 that surrounds the rotary sliding member 150. The rotation operation member 40 and the collar member 140 are formed in a nested manner. Thereby, effects, such as drip-proof and waterproofing, can be heightened.

  FIG. 5 is a cross-sectional view of the rotary dial unit 20 taken along the line BB in FIG. In particular, the lower dial 24 is locked. In FIG. 4, the locking mechanism of the lower dial 24 and the mechanism for giving a click feeling will be mainly described.

  When the lower dial 24 is locked, any of the plurality of receiving holes 158 coincides with the first hole 184 in the rotational phase. The lock member 260 is disposed below the support member 180. The lock claw 262 is disposed on the lower side of the support member 180 along the axial direction. The upper end of the lock claw 262 passes through the first hole 184 and reaches the accommodation hole 158. The upper protrusion 266 has a receiving hole 267, and a part of the upper protrusion 266 protrudes upward from the second hole 185. That is, the receiving hole 267 is formed at a position corresponding to the second hole 185. The upper protrusion 266 is slidably fitted into the second hole 185.

  The pressing operation member 190 has a fixed shaft 192 and a pressing portion 194. The fixed shaft 192 is inserted into the receiving hole 267 and fixed. The pressing part 194 is disposed on the upper end side of the fixed shaft 192. Here, the exterior member 130 includes an insertion hole 134 and a surrounding wall 136 that surrounds the insertion hole 134. The pressing portion 194 is inserted through the insertion hole 134 and protrudes upward from the exterior member 130.

  The sealing member 200 is disposed between the pressing operation member 190 and the support member 180. The sealing member 200 has a fitting hole 202. The fitting hole 202 is fitted to the fixed shaft 192. Further, the sealing member 200 is pressurized by the surrounding wall 136 toward the support member 180 side. Further, the sealing member 200 has a bag-like portion 204 that surrounds the upper protruding portion 266 protruding from the second hole 185. As described above, since a part of the upper protruding portion 266 protrudes upward from the second hole 185, the sealing member 200 also has a shape along the protrusion. That is, the shape is raised upward. As described above, the sealing member 200 seals the space on the support member 180 side.

  In the present embodiment, the pressing operation mechanism and the locking mechanism in the lower dial 24 are realized by different members, that is, the pressing operation member 190 and the lock member 260. Then, two holes are formed in the support member 180, and the fixed shaft 192 is inserted into the second hole 185 that is one of the holes. The sealing member 200 is disposed at a fitting portion between the fixed shaft 192 and the receiving hole 267. Since it is not necessary to cover the entire pressing operation member 190 and the lock member 260, it is possible to reduce the size while realizing drip-proofing and waterproofing.

  The urging member 270 is inserted through the lower protruding portion 268 and arranged. The urging member 270 urges the lock member 260 toward the support member 180 side.

  As shown in the drawing, in a state where the pressing portion 194 is not pressed, the lock member 260 is biased upward by the biasing member 270, so that the lock claw 262 is also biased upward. As a result, the lock claw 262 passes through the first hole 184, reaches the accommodation hole 158, and is accommodated in the accommodation hole 158. Accordingly, the lower dial 24 is not allowed to rotate.

  When the pressing portion 194 is pressed against the urging force of the urging member 270, the pressing operation member 190 slides downward. Since the pressing operation member 190 and the locking member 260 are integrally formed, the locking member 260 slides downward along with the pressing operation member 190. That is, the lock claw 262 moves away from the accommodation hole 158. When the lock claw 262 is retracted from the accommodation hole 158, the lower dial 24 is allowed to rotate. That is, the lower dial 24 is unlocked. As described above, the pressing operation member 190 retracts the lock claw 262 from the accommodation hole 158 when the pressing portion 194 is pressed against the urging force of the urging member 270.

  The click plate 240 is disposed below the retaining plate 230. The click member accommodating portion 292 is disposed below the click plate 240. The click member accommodating portion 292 is disposed at a position adjacent to the lock member 260. In a state where the lower dial 24 is locked, any one of the plurality of step portions 242 of the click plate 240 coincides with the click member accommodating portion 292. The click member accommodating portion 292 accommodates the click member 280. The click member accommodating portion 292 accommodates an urging member 282 such as a compression coil spring on the lower side. A steel ball 284 is accommodated on the biasing member 282. The biasing member 282 biases the steel ball 284 to the click plate 240.

  The steel ball 284 is urged by the specific stepped portion 242 in the static state. When the user rotates the upper dial 22, the steel ball 284 rides on the surface of the click plate 240 once, compresses the biasing member 282, and transfers to the other stepped portion 242. At this time, the user can obtain a click feeling by the resistance force of the biasing member 282.

  The second wall 149 of the collar member 140 has a step 146 in the radial direction of the upper dial 22. The step portion 146 is provided corresponding to the expected stationary position of the rotation operation member 40. The click member 160 is accommodated in the click member accommodating portion 154 of the rotary sliding member 150. An urging member 162 such as a compression coil spring is accommodated inside the click member accommodating portion 154, and a steel ball 164 is accommodated outside the urging member 162. That is, the biasing member 162 and the steel ball 164 are arranged in this order from the inside in the radial direction of the upper dial 22. Therefore, the biasing member 162 biases the steel ball 164 to the stepped portion 146 of the second wall 149.

  The steel ball 164 is urged by a specific stepped portion 146 in a static state. When the user rotates the lower dial 24, the steel ball 164 once rides on the surface of the second wall 149, compresses the biasing member 162, and transitions to another stepped portion 146. At this time, the user can obtain a click feeling by the resistance force of the urging member 162.

  As described above, in the present embodiment, the lock strength of the upper dial 22 is determined by the biasing member 80, and the click force is determined by the biasing member 282. Since the lock strength and the click force are determined by different members, each can be easily adjusted.

  FIG. 6 is a diagram for explaining the positional relationship between the rotating shaft 94, the lock claw 262, and the fixed shaft 192. In FIG. 6, the support member 290, the click plate 240, and the retaining plate 230 are extracted and illustrated. FIG. 6 is represented by a bottom view showing these looking up from below.

  The rotating shaft 94, the lock claw 262, and the fixed shaft 192 are arranged on the same straight line on a plane orthogonal to the rotating shaft 94 of the upper dial 22. Accordingly, the circumferential displacement can be easily suppressed by simply matching the circumferential dimension of the accommodation hole 158 of the rotary sliding member 150 with the diameter of the lock claw 262. The receiving hole 158 of the rotary sliding member 150 is a long hole that is long in the radial direction so as to allow the radial displacement of the rotary shaft 94, the lock claw 262, and the fixed shaft 192. The diameter in the short direction coincides with the diameter of the lock claw 262. Such an accommodation hole 158 fits with the lock claw 262 in the circumferential direction of the upper dial 22 and does not fit in the radial direction.

  In the above description, the click member 160 that gives a click feeling to the rotation operation of the upper dial 22 is disposed below the retaining plate 230, but may be disposed inside the operation member 30. In this case, the same effect can be obtained.

  FIG. 7 is a diagram for explaining another configuration for giving the click feeling of the upper dial 22. The operation member 30 houses the click member 300 in the recess 34. A biasing member 302 is disposed above the recess 34, and a steel ball 304 is disposed below the biasing member 302. The ring portion 108 has a plurality of step portions 109 on the upper surface. The plurality of step portions 109 are formed in a form corresponding to the plurality of receiving holes 56 on a one-to-one basis. The urging member 302 urges the steel ball 304 toward the step portion 109.

  The steel ball 304 is urged by the specific stepped portion 109 in the static state. When the user rotates the upper dial 22, the steel ball 304 once rides on the surface of the ring portion 108, compresses the biasing member 302, and transfers to the other stepped portion 109. At this time, the user can obtain a click feeling by the resistance force of the biasing member 302.

  FIG. 8 is a diagram illustrating another configuration of the rotary dial unit 20. In particular, the state where the upper dial 22 is locked is shown.

  In the example shown in FIG. 8, the rotary dial unit 20 has an auxiliary lock claw 310. Similar to the lock claw 70, the auxiliary lock claw 310 includes a protrusion 312 protruding in the rotation axis direction and a pair of claw portions 314 protruding in a direction orthogonal to the rotation axis direction. The auxiliary lock claw 310 is disposed on the side of the actuating member 60 opposite to the side on which the lock claw 70 is disposed. Similarly to the lock claw 70, the auxiliary lock claw 310 is also attached to the outer peripheral portion of the disc portion 62 by the claw portion 314 sandwiching the outer peripheral portion of the disc portion 62. The lock claw fixing member 100 has an auxiliary notch 107 on the opposite side of the notch 106 across the central axis. The auxiliary lock claw 310 fits in the auxiliary cutout 107.

  As shown in the drawing, in a state where the operating member 60 is not pressed, the operating member 60 is biased upward by the biasing member 80, so that the protrusion 72 of the lock claw 70 and the protrusion 312 of the auxiliary lock claw 310 are illustrated. Are accommodated in the accommodation holes 56 and 57, respectively. Since the lock claw 70 and the auxiliary lock claw 310 are arranged at positions facing each other across the central axis, the operation member 60 is biased upward by the biasing member 80 with a substantially equal force. 30 is biased upward. Therefore, the inclination of the operation member 30 with respect to the rotation axis can be reduced.

  When the operation member 60 is pressed against the urging force of the urging member 80, the lock claw 70 slides along the notch 106 along with the operation member 60, and the auxiliary lock claw 310 is moved to the operation member 60. The auxiliary notch 107 is slid downward along with the above. That is, the protrusion 72 of the lock claw 70 and the protrusion 312 of the auxiliary lock claw 310 are separated from the receiving holes 56 and 57, respectively. Then, when the protrusion 72 of the lock claw 70 and the protrusion 312 of the auxiliary lock claw 310 are detached from the receiving holes 56 and 57, respectively, the rotation operation of the upper dial 22 is permitted. In the example shown in FIG. 8, when the auxiliary lock claw 310 is accommodated in the auxiliary cutout portion 107, the rotation of the auxiliary lock claw 310 in the circumferential direction is restricted. That is, the auxiliary lock claw 310 slides relative to the rotation of the disc portion 62.

  In the example shown in FIG. 8, in the auxiliary notch 107, when the lock claw 70 is accommodated in the accommodation hole 56, the auxiliary lock claw 310 is also accommodated in the accommodation hole 57, and the lock claw 70 is accommodated in the accommodation hole 56. When not, the auxiliary lock claw 310 is also provided at a position where it is not accommodated in the accommodation hole 57.

  The height of the protrusion 312 of the auxiliary lock claw 310 is lower than the height of the protrusion 72 of the lock claw 70. Thereby, the auxiliary lock claw 310 is more easily detached from the accommodation hole 57 than the lock claw 70. Therefore, when the lock claw 70 is detached from the accommodation hole 56, the auxiliary lock claw 310 is also detached from the accommodation hole 57. The auxiliary lock claw 310 functions as a member for reducing the inclination of the operation member 30 with respect to the rotation axis, rather than functioning as a lock member.

  If the distance from the rotary shaft 94 to the center of the auxiliary lock claw 310 is the same as the distance from the rotary shaft 94 to the center of the lock claw 70, the lock claw 70 is received in the receiving hole 57 of the auxiliary lock claw 310. There is a case. That is, there is a case where a lock not intended by the user is performed. Therefore, in the example shown in FIG. 8, the distance from the rotation shaft 94 to the center of the auxiliary lock claw 310 is different from the distance from the rotation shaft 94 to the center of the lock claw 70. Here, the distance from the rotation shaft 94 to the center of the auxiliary lock claw 310 is shorter than the distance from the rotation shaft 94 to the center of the lock claw 70. The lock plate 50 is formed with receiving holes 56 and 57 in accordance with positions where the lock claw 70 and the auxiliary lock claw 310 are arranged. That is, the distance from the rotation shaft 94 to the center of the accommodation hole 57 of the auxiliary lock claw 310 is shorter than the distance from the rotation shaft 94 to the center of the accommodation hole 56 of the lock claw 70. With the configuration described above, the lock claw 70 is accommodated in the accommodation hole 56 of the lock claw 70.

  The diameter of the protrusion 312 of the auxiliary lock claw 310 is smaller than the diameter of the protrusion 72 of the lock claw 70. Due to the difference in width between the diameter of the protrusion 312 of the auxiliary lock claw 310 and the diameter of the protrusion 72 of the lock claw 70, the accommodation hole 56 of the lock claw 70 and the accommodation hole 57 of the auxiliary lock claw 310 are mutually shaped. Is different. In the example shown in FIG. 8, the diameter of the accommodation hole 56 of the lock claw 70 is wider than the accommodation hole 57 of the auxiliary lock claw 310. Therefore, the lock claw 70 is not accommodated in the accommodation hole 57 of the auxiliary lock claw 310 but is accommodated in the accommodation hole 56 of the lock claw 70. By configuring as described above, even if the distance from the rotary shaft 94 to the center of the auxiliary lock claw 310 is the same as the distance from the rotary shaft 94 to the center of the lock claw 70, the lock claw 70 is It is accommodated in the accommodation hole 56 of the lock claw 70.

  It does not have to be a configuration that can be locked at all positions of the upper dial 22. A configuration that can be locked only at a position corresponding to a specific function may be used. In this case, the accommodation hole 56 is formed according to the number of specific functions. The same applies to the lower dial 24.

  In the above description, the member that prevents the rotating shaft 94 from coming out to the operation member 30 side and the member having the stepped portion 242 for providing a click feeling are configured as separate bodies. Also good. That is, the retaining plate 230 may have a stepped portion corresponding to the plurality of receiving holes 56 while preventing the rotary shaft 94 from coming off to the operation member 30 side.

  In the above description, the retaining plate 230 is configured to fix the protruding portion 97 by supporting the parallel pin 250, but may be configured to be fixed by other methods such as press-fitting and adhesion.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiment. It is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

10 camera, 12 camera unit, 14 lens unit, 20 rotary dial unit, 22 upper dial, 24 lower dial, 30 operation member, 32 insertion hole, 34 recess, 40 rotation operation member, 42 recess, 44 insertion hole, 46 circumference Groove, 48 stepped portion, 50 lock plate, 52 recess, 54 insertion hole, 56 receiving hole, 57 receiving hole, 58 cap, 60 actuating member, 62 disc portion, 63 upper part, 64 lower part, 65 projecting part, 66 sliding Part, 68 recessed part, 70 locking claw, 72 projecting part, 74 claw part, 80 urging member, 90 shaft member, 92 disc part, 94 rotating shaft, 96 sliding hole, 97 protruding part, 98 through hole, 100 lock Claw fixing member, 102 recess, 104 insertion hole, 106 notch, 107 auxiliary notch, 108 ring, 109 step, 110 screw 120 sealing member, 130 exterior member, 132 opening, 134 insertion hole, 136 surrounding wall, 140 collar member, 142 substrate portion, 144 wall portion, 146 stepped portion, 147 first wall, 148 fixing portion, 149 second wall , 150 Rotating sliding member, 152 disc part, 154 click member accommodating part, 156 first hole, 158 accommodating hole, 159 accommodating part, 160 click member, 162 urging member, 164 steel ball, 170 contact brush, 180 support Member, 181 Substrate part, 182 Bearing, 183 Step part, 184 First hole, 185 Second hole, 190 Press operation member, 192 Fixed shaft, 194 Press part, 200 Sealing member, 202 Fitting hole, 204 Bag-like part 210 Pattern circuit board, 212 Upper stage, 213 Circuit pattern, 214 Lower stage, 215 Through hole, 216 Circuit pattern Turn, 220 contact brush, 230 retaining plate, 232 through hole, 234 receiving portion, 236 groove portion, 267 receiving hole, 240 click plate, 242 stepped portion, 250 parallel pin, 260 lock member, 262 lock claw, 264 base material portion, 266 Upper protrusion, 268 Lower protrusion, 270 Biasing member, 280 Click member, 282 Bias member, 284 Steel ball, 290 Support member, 292 Click member housing part, 294 Bias member support part, 300 Click member, 302 biasing member, 304 steel ball, 310 auxiliary lock claw, 312 protrusion, 314 claw

Claims (4)

A support member having a shaft;
A lock claw having a protrusion protruding in the axial direction;
A lock claw fixing member that has a larger diameter than the shaft, is fixed to the support member, and restricts rotation of the lock claw in the circumferential direction;
A rotating dial having a receiving hole for receiving the protrusion and rotating around the axis;
A rotary dial unit comprising: an actuating member that moves the lock claw in the axial direction so that the protrusion is detached from the accommodation hole.   The rotary dial unit according to claim 1, wherein the lock claw is disposed on an outer peripheral portion of the lock claw fixing member.   The rotary dial unit according to claim 1, wherein the lock claw is attached to the operating member so as to be integrally movable with respect to the axial direction.   4. The rotary dial unit according to claim 1, wherein the lock claw fixing member has a notch for restricting rotation of the lock claw in a circumferential direction. 5.