Microphone device

Abstract

The objective is to provide a microphone device that can reduce vibrations from an imaging device, regardless of the orientation of the microphone element relative to the imaging device. [Solution] The microphone 200 comprises a microphone body 250, an accessory shoe 210, and a body 230. The body 230 includes a shock damper 211 that mitigates vibrations from the digital camera 100, and a middle case 233 that houses the shock damper 211. The shock damper 211 comprises a first fixing part 212 fixed to the body 230, a second fixing part 213 fixed to the middle case 233, and an arm part 214 that connects the first fixing part 212 and the second fixing part 213. The arm part 214 has a curved portion 244a that curves at an intermediate position between the first fixing part 212 and the second fixing part 213, and has a first inner surface 245 and a second inner surface 246 that face each other on the inside of the curve and can move closer to and further apart from each other.

Description

Technical Field

[0004] , , ,

[0001] The present invention relates to a microphone device.

Background Art

[0002] An external microphone is known as an external accessory of an imaging device such as a digital camera. The external microphone is used in a mounted state mounted on an accessory shoe of the imaging device. When performing video shooting in the mounted state of the external microphone, for example, vibrations caused by driving of the lens of the imaging device or operation vibrations caused by operations on the imaging device may be transmitted to the external microphone. And this vibration may be collected as noise by the external microphone. For example, Patent Document 1 discloses a microphone device having a damper capable of absorbing vibrations generated by a motor for driving a lens of an imaging device. As the damper included in the microphone device described in this Patent Document 1, there is a damper having an inner ring, an outer ring disposed outside the inner ring, and a plurality of ribs connecting the inner ring and the outer ring. Each rib extends linearly.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the microphone device described in Patent Document 1, the vibration absorption performance of each rib of the damper is impaired for vibrations in a direction parallel to its extension direction, i.e., the vibration reduction performance is reduced. Furthermore, in the microphone device described in Patent Document 1, if the extension direction of the rib coincides with the direction perpendicular to the diaphragm of the microphone element, there is a risk that vibration (noise) reduction by the damper will not be sufficient. Microphone elements are arranged in various directions depending on the type of system, such as stereo or monaural, and the directional setting as an acoustic performance. Therefore, the damper lacks versatility because it is necessary to appropriately arrange the ribs for various arrangement directions of the microphone elements.

[0005] The present invention has been made in view of the above-mentioned problems. The object of the present invention is to provide a microphone device that can reduce vibrations from an imaging device, regardless of the orientation of the microphone element relative to the imaging device. [Means for solving the problem]

[0006] To achieve the above objective, the present invention provides a microphone device used by being attached to an imaging device, comprising: a microphone body having a sound-collecting microphone element; a mounting part attached to the imaging device; and a connecting part connecting the microphone body and the mounting part, wherein the connecting part comprises a buffer part that reduces vibrations transmitted from the imaging device to the microphone body and a cover part that houses the buffer part, wherein the buffer part comprises a first fixing part fixed to the mounting part, a second fixing part fixed to the cover part, and an elastic connecting part that connects the first fixing part and the second fixing part, wherein the connecting part has a curved portion that curves at an intermediate position between the first fixing part and the second fixing part, and has a first surface and a second surface that face each other on the inside of the curve and can move closer to and further apart from each other, wherein the first surface and the second surface are separated from each other in a natural state when no external force is applied. [Effects of the Invention]

[0007] According to the present invention, vibrations from the imaging device can be reduced regardless of the orientation of the microphone element relative to the imaging device. [Brief explanation of the drawing]

[0008] [Figure 1] This is an exploded perspective view showing the positional relationship between the imaging device and the microphone device. [Figure 2] This is a disassembled perspective view of a microphone. [Figure 3] This is a cross-sectional view along line AA in Figure 1(a). [Figure 4] This is a cross-sectional view along line BB in Figure 1(b). [Figure 5] This is a perspective view showing the shock damper and intermediate components. [Figure 6] This is a perspective view showing a modified example 1 of the shock damper applicable to the first embodiment. [Figure 7] This is a perspective view showing a modified example 2 of the shock damper applicable to the first embodiment. [Figure 8] This is a perspective view showing the shock damper in the second embodiment. [Figure 9] This is a perspective view showing the shock damper in the second embodiment. [Figure 10] This figure shows a shock damper in the third embodiment. [Figure 11] This is a perspective view showing modified examples of shock dampers applicable to the first to third embodiments. [Modes for carrying out the invention]

[0009] The embodiments of the present invention will be described in detail below with reference to the drawings. However, the configurations described in the following embodiments are merely illustrative, and the scope of the present invention is not limited by the configurations described in each embodiment. For example, each part constituting the present invention can be replaced with any configuration that can perform a similar function. In addition, any additional components may be added. Furthermore, any two or more configurations (features) from each embodiment can be combined.

[0010] <First Embodiment> The first embodiment will be described below with reference to Figures 1 to 7. Figure 1 is an exploded perspective view showing the positional relationship between the imaging device and the microphone device. Figure 1(a) is a front perspective view. Figure 1(b) is a rear perspective view. For the sake of explanation, the upper side in Figure 1 will be referred to as "up" and the lower side as "down" (the same applies to Figures 2, 3, 5 to 11). As shown in Figure 1(a), the imaging device, a digital camera 100, has a camera body 101, an accessory connection part 110, a mode selector switch 160, a shutter button 161, and a lens device 120. As shown in Figure 1(b), the digital camera 100 has a display unit 128, an operation unit 170, and a power switch 172. A microphone device (hereinafter simply referred to as "microphone") 200 is detachably attached to the digital camera 100. The microphone 200 is used in the state in which it is attached to the digital camera 100. The microphone 200 has an accessory shoe section (mounting section) 210, a body section (connection section) 230, and a microphone body section 250.

[0011] The camera body 101 has an image sensor (not shown) composed of a CCD or CMOS. An accessory connection section 110 is located near the center of the top surface of the camera body 101. External accessories such as a microphone 200 are detachably connected (attached) to the accessory connection section 110. The accessory connection section 110 is also provided with electrical contacts (not shown) that are electrically connected to electrical contacts (not shown) provided on the accessory shoe section 210 of the microphone 200. A mode selector switch 160 is located at the end of the top surface of the camera body 101. The mode selector switch 160 is an operation unit for switching between various modes, including video recording mode. A shutter button 161 is located at the end of the top surface of the camera body 101 opposite to the mode selector switch 160. The shutter button 161 is an operation unit for issuing a shooting command. A lens device 120 is detachably attached to the front of the camera body 101. The lens device 120 has a lens barrel 121 that houses a group of lenses (not shown) for zooming, focusing, and image stabilization. A motor for driving the lens group is also housed in the lens barrel 121. A display unit 128, an operation unit 170, and a power switch 172 are located on the back of the camera body 101. The display unit 128 displays images and various information. The operation unit 170 is an operation unit composed of various switches, buttons, dials, and other operating elements. The operation unit 170 receives various operations from the user using the digital camera 100, including the operation to start video recording. The power switch 172 is an operation unit that switches the power of the camera body 101 ON and OFF.

[0012] Figure 2 is an exploded perspective view of the microphone. Figure 2(a) is a front perspective view. Figure 2(b) is a rear perspective view. Figure 3 is a cross-sectional view taken along line AA in Figure 1(a). As described above, the microphone 200 has an accessory shoe section 210, a body section 230, and a microphone body section 250, arranged in this order from bottom to top. The microphone body section 250 is the part that can collect external sounds. The accessory shoe section 210 is the part that can be detachably attached to the accessory connection section 110 of the digital camera 100. The body section 230 is the part that connects the microphone body section 250 and the accessory shoe section 210. As shown in Figures 2 and 3, the microphone body section 250 has a microphone element 251, a control board 253, and a cover section 252. The microphone element 251 is capable of collecting sound and outputs sound as an audio signal. There may be one or more microphone elements 251. The microphone element 251 is electrically connected to the control board 253. The audio signal output from the microphone element 251 is processed by the control board 253, for example, through speech synthesis, and then transmitted as an electrical signal to the digital camera 100 via the flexible circuit board 227 of the accessory shoe section 210. The cover section 252 is a cylindrical member that houses the microphone element 251 and the control board 253. The accessory shoe section 210 is inserted into the accessory connection section 110 of the digital camera 100 in a predetermined direction (in this embodiment, from the back to the front of the digital camera 100). As a result, the microphone 200 is attached to the digital camera 100.

[0013] As shown in Figures 2 and 3, the accessory shoe portion 210 has an accessory shoe body portion 209 and a flexible circuit board 227. The accessory shoe body portion 209 is disc-shaped. A body connection portion 231 is formed in the center of the accessory shoe body portion 209, protruding upward in a cylindrical shape. The body connection portion 231 is the part that connects to the body portion 230. The flexible circuit board 227 is supported by the accessory shoe body portion 209. The flexible circuit board 227 is electrically connected to the control board 253 of the microphone body portion 250.

[0014] As shown in FIGS. 2 and 3, the body portion 230 includes a shock damper (buffer portion) 211, an intermediate member 232, a middle case (cover portion) 233, and a top case 238. The shock damper 211 is a buffer portion that mitigates the transmission of vibrations from the digital camera 100 to the microphone main body portion 250 when vibrations occur in the digital camera 100, that is, an absorption portion that absorbs vibrations from the digital camera 100. Examples of vibrations that occur in the digital camera 100 include vibrations generated by a motor for driving the lens group. Such vibrations may be collected as noise by the microphone main body portion 250, but the shock damper 211 can prevent such collection. The shock damper 211 is made of an elastic material. Such a material is not particularly limited, and for example, various rubber materials such as fluorine rubber, and gels, porous bodies, etc. can be used.

[0015] The shock damper 211 has a first fixing portion 212, a second fixing portion 213, and an arm portion 214. The first fixing portion 212 is a portion fixed to the accessory shoe portion 210. The first fixing portion 212 has a cylindrical (ring-shaped) form. Inside this first fixing portion 212, a cylindrical intermediate member 232 is inserted, that is, fitted. The lower portion of the intermediate member 232 is fixed to the body connection portion 231 of the accessory shoe portion 210 via a screw 290. Further, flange portions 239 with an enlarged outer diameter are provided at the upper and lower ends of the intermediate member 232, respectively. Thereby, the intermediate member 232 can be prevented from coming out of the first fixing portion 212. And through such an intermediate member 232, the first fixing portion 212 is in a state of being fixed to the accessory shoe portion 210.

[0016] On the outer peripheral side of the first fixing portion 212, a plurality of second fixing portions 213 are arranged at equal intervals along the circumferential direction thereof. The number of the second fixing portions 213 arranged is eight in the present embodiment, but is not limited thereto, and may be, for example, one to seven or nine or more. Each second fixing portion 213 is a portion fixed to the middle case 233. Each second fixing portion 213 has a columnar (cylindrical) shape, and its central axis is arranged parallel to the central axis of the first fixing portion 212. Incidentally, the total length (the length along the central axis direction) of each second fixing portion 213 is the same as the total length of the first fixing portion 212. Further, the diameter of the second fixing portion 213 is smaller than both the outer diameter and the inner diameter of the first fixing portion 212.

[0017] The arm portion 214 is a connecting portion that connects the first fixing portion 212 and each second fixing portion 213. Incidentally, the height (the length along the central axis direction) of the arm portion 214 is the same as the total length of the first fixing portion 212. The shock damper 211 is made of a material having elasticity as described above, and each arm portion 214 mainly bears the mitigation of vibration from the digital camera 100 to the microphone main body portion 250. Incidentally, the arm portion 214 is preferably arranged in at least one of the optical axis direction of the digital camera 100 and the width direction of the digital camera 100, depending on the arrangement position of the second fixing portion 213. Thereby, at least the vibration mitigation function at the arm portion 214 can be exhibited. Further, the shock damper 211 may be entirely made of a material having elasticity, but at least the arm portion 214 may be made of a material having elasticity. Further, in the present embodiment, the shock damper 211 is formed integrally with the first fixing portion 212, the second fixing portion 213, and the arm portion 214, but is not limited thereto. For example, the shock damper 211 may be formed by connecting the first fixing portion 212, the second fixing portion 213, and the arm portion 214 separately from each other.

[0018] The middle case 233 is cylindrical and houses the shock damper 211 inside. The lower end of the middle case 233 has an opening 234 through which the body connection portion 231 of the accessory shoe portion 210 is inserted, preventing interference with the body connection portion 231. The inner circumference of the middle case 233 is also provided with damper connection portions (cover-side fixing portions) 235 for fixing each second fixing portion 213. The damper connection portion 235 is cylindrical, and the second fixing portion 213 can be inserted inside it in a loosely fitted state, that is, with play (gap) (see Figure 4). This fixes each second fixing portion 213 to the middle case 233. The inner circumference of the middle case 233 also has claw portions 236 and holes 237 positioned opposite each other.

[0019] The top case 238 is a component that covers the middle case 233 from above. The lower surface of the top case 238 has a plurality of ribs 240 that protrude downward. Each rib 240 prevents the second fixing portion 213 of the shock damper 211 from coming out upward from the damper connection portion 235 of the middle case 233. The lower surface of the top case 238 is also provided with a recess 241 that engages with the claw portion 236 of the middle case 233, and a screw hole portion 242 into which a screw (not shown) that passes through the hole portion 237 of the middle case 233 is screwed. The top case 238 also has a plurality of through holes 243 that penetrate in the vertical direction. A screw 291 that screws into the microphone body portion 250 is inserted through each through hole 243. This fixes the top case 238 to the microphone body portion 250. The microphone body 250 and the accessory shoe 210 are connected via the body 230, which has this configuration.

[0020] Figure 4 is a cross-sectional view along line BB in Figure 1(b). Since the configuration of each arm 214 is the same, the configuration of one arm 214 will be described here as representative. As shown in Figure 4, the arm 214 has a curved portion 244a formed at an intermediate position between the first fixing portion 212 and the second fixing portion 213. The curved portion 244a has a first inner surface (first surface) 245 and a second inner surface (second surface) 246 that face each other on the inside of its curve. The first inner surface 245 is located on the side of the first fixing portion 212, and the second inner surface 246 is located on the side of the second fixing portion 213. The first inner surface 245 and the second inner surface 246 can move closer to and further away from each other depending on the usage state of the digital camera 100, that is, the orientation (direction) of the microphone 200. The first inner surface 245 and the second inner surface 246 are separated from each other in their natural state without any external force applied, forming a gap 244 between them. The portions on both sides of the arm portion 214 via the curved portion 244a are, in their natural state, parallel to each other in straight lines. In this embodiment, adjacent arm portions 214 have different directions of curvature, i.e., different directions of curvature convexity, but this is not limited to this, and they may be the same. With a curved portion 244a configured in this way, when vibrations from the digital camera 100 are transmitted to the accessory shoe portion 210 of the microphone 200 in a direction parallel to the extension direction of the arm portion 214, the vibrations can be released in the gap 244. This prevents an increase in rigidity due to the arm portion 214 becoming rigid, i.e., a decrease in the vibration reduction effect. Therefore, vibrations from the digital camera 100 can be reduced regardless of the orientation of the microphone 200 (microphone element 251) relative to the digital camera 100.

[0021] As mentioned above, the shock damper 211 is elastic. Therefore, depending on the usage conditions of the digital camera 100, the microphone 200 attached to the digital camera 100 may tilt, with the body portion 230 and the microphone body portion 250 tilting relative to the accessory connection portion 110. This will be explained with reference to Figure 5. Figure 5 is a perspective view showing the shock damper and intermediate member. Figure 5(a) is a perspective view in the natural state. Figure 5(b) is a perspective view in the state where tilting occurs. In the state shown in Figure 5(a), a gap 244 is formed between the first inner surface 245 and the second inner surface 246 of each arm portion 214 of the shock damper 211. As tilting occurs and increases, the first inner surface 245 and the second inner surface 246 move closer to each other from the upper or lower end side. Finally, as shown in Figure 5(b), the first inner surface 245 and the second inner surface 246 come into contact with each other. In this state, the tilt limit of the body portion 230 and microphone body portion 250 relative to the accessory connection portion 110 is restricted, that is, tilting beyond that limit is restricted. This prevents the body portion 230 and microphone body portion 250 from tilting excessively relative to the accessory connection portion 110. The distance D244a of the gap 244 (see Figure 4) is preferably set as follows: The distance D244a is set so that when the body portion 230 and microphone body portion 250 tilt, the first inner surface 245 and the second inner surface 246 come into contact before the accessory shoe portion 210 and the body portion 230 or microphone body portion 250 come into direct contact.

[0022] Furthermore, when taking pictures with the digital camera 100 with the microphone 200 attached, the subject may move relatively significantly, or the photographer may be riding in the vehicle. Also, if the digital camera 100 with the microphone 200 attached is mounted in a vehicle, the microphone 200 may unintentionally come into contact with or collide with something, resulting in relatively large inertia or impacts that cause the shock damper 211 to tilt. In such cases, if the accessory shoe portion 210 of the microphone 200 comes into contact with the body portion 230 or the microphone body portion 250, the vibration reduction effect of the shock damper 211 may not be fully realized. As a result, vibrations may be directly transmitted to the microphone body portion 250 from the contact point between the accessory shoe portion 210 and the body portion 230 or the microphone body portion 250. However, as mentioned above, the microphone 200 is set so that the first inner surface 245 and the second inner surface 246 are in contact, which prevents vibrations from being directly transmitted to the microphone body portion 250 from the contact point. Furthermore, in normal shooting conditions where relatively large inertia or impacts that would cause the shock damper 211 to tilt are not applied, it is preferable that the first inner surface 245 and the second inner surface 246 of the shock damper 211 are sufficiently spaced apart so that the vibration reduction effect can be maximized.

[0023] Figure 6 is a perspective view showing a modified example 1 of the shock damper applicable to the first embodiment. As shown in Figure 6, the arm portion 214 has a curved portion 244a located on the first fixed portion 212 side and a curved portion 244b located on the second fixed portion 213 side. The curved portions 244a and 244b have the same direction of curvature. The curved portion 244a has a first inner surface 245a and a second inner surface 246a. The curved portion 244b has a first inner surface 245b and a second inner surface 246b. Preferably, the separation distance D244a between the first inner surface 245a and the second inner surface 246a of the curved portion 244a in its natural state and the separation distance D244b between the first inner surface 245b and the second inner surface 246b of the curved portion 244b are different from each other. Specifically, it is preferable that the separation distance D244a is longer than the separation distance D244b. When tilting occurs, due to the relative distances, the first inner surface 245b and the second inner surface 246b of the curved portion 244b first come into contact, and then, as the tilting continues, the first inner surface 245a and the second inner surface 246a of the curved portion 244a come into contact. This makes it possible to gradually limit the ease with which the shock damper 211 tilts. In this modified example, there are two curved portions, but this is not limited to this, and there may be three or more, for example.

[0024] Figure 7 is a perspective view showing a modified example 2 of the shock damper applicable to the first embodiment. As shown in Figure 7, the first inner surface 245 (one surface) of the first inner surface 245 and the second inner surface 246 is provided with a projection 247 that protrudes toward the second inner surface 246 (the other surface). The projection 247 can move toward and away from the second inner surface 246. As a result, as the shock damper 211 tilts, the projection 247 comes into contact with the second inner surface 246. Such contact reduces the contact area compared to when the projection 247 is omitted, and thus contributes to mitigating the impact at the time of contact. Note that although the projection 247 is provided on the first inner surface 245, it is not limited to this and may be provided on the second inner surface 246, or on both the first inner surface 245 and the second inner surface 246.

[0025] <Second Embodiment> The second embodiment will be described below with reference to Figures 8 and 9, focusing on the differences from the previously described embodiment, and similar matters will be omitted from the description. Figures 8 and 9 are perspective views showing the shock damper in the second embodiment, respectively. One configuration that improves the vibration reduction effect of the shock damper 211 compared to the first embodiment is to reduce the rigidity of the shock damper 211. As a configuration that reduces the rigidity of the shock damper 211, in the shock damper 211 shown in Figure 8, the height of the arm portion 214 is smaller than the total length of the first fixing portion 212. As a result, the rigidity of the shock damper 211 is reduced, and the vibration reduction effect is increased. Note that the shock damper 211 shown in Figure 8 tends to tilt more easily due to the reduced rigidity. In this case, there is a concern that the microphone 200 may become larger in order to secure clearance to prevent contact between the accessory shoe portion 210 and the body portion 230 or the microphone body portion 250. Furthermore, because the shock damper 211 is prone to tilting, the microphone 200 may be shaken back and forth and side to side when shooting video while walking, for example, which could hinder stable sound collection.

[0026] As shown in Figure 9, the shock damper 211 has an arm portion 214, which consists of a first arm portion 248 and a second arm portion 249. The first arm portion 248 and the second arm portion 249 are arranged in the vertical direction (along the central axis direction of the first fixing portion 212). The first arm portion 248 connects the upper end of the first fixing portion 212 and the upper end of the second fixing portion 213. The second arm portion 249 connects the lower end of the first fixing portion 212 and the lower end of the second fixing portion 213. The first arm portion 248 and the second arm portion 249 are spaced apart from each other in the vertical direction, forming a gap 270 between them. This gap 270 reduces the volume of the portion connecting the first fixing portion 212 and the second fixing portion 213, thereby lowering the rigidity against shear deformation. Furthermore, the second moment of area about the optical axis of the digital camera 100, which passes through the central axis of the shock damper 211, and the second moment of area about the axis along the width of the digital camera 100 are expressed by the following equation (1).

[0027]

number

[0028] As is clear from equation (1), the second moment of area is larger when the cross-section is located at a greater height from the axis. Therefore, in the shock damper 211 shown in Figure 9, the translational stiffness of the shock damper 211 is reduced to improve the vibration reduction effect, while the second moment of area around the rotation axis is higher than that of the shock damper 211 shown in Figure 8. As a result, the shock damper 211 shown in Figure 9 can suppress tilting more effectively than the shock damper 211 shown in Figure 8. In this embodiment, the shock damper 211 has two arms as arms 214, but it is not limited to this, and may have, for example, three or more arms.

[0029] <Third Embodiment> The third embodiment will now be described with reference to Figure 10, focusing on the differences from the previously described embodiment, and omitting explanations of similar matters. Figure 10 is a diagram of the shock damper in the third embodiment. Figure 10(a) is a perspective view. Figure 10(b) is a cross-sectional view taken along line CC in Figure 10(a). As shown in Figure 10(a), the shock damper 211 has a plate-shaped portion 272 that is installed between two adjacent pairs of second fixing portions 213 out of the eight second fixing portions 213. The shock damper 211 also has a projection 271 provided on the outer circumference of the first fixing portion 212 that protrudes toward the plate-shaped portion 272. The plate-shaped portion 272 and the projection 271 can move toward and away from each other. When the plate-shaped portion 272 and the projection 271 are in contact with each other, they can restrict the tilt limit of the body portion 230 and the microphone body portion 250 relative to the accessory connection portion 110. This prevents the body portion 230 and the microphone body portion 250 from tilting excessively relative to the accessory connection portion 110. It is preferable that the distance D273 between the plate-shaped portion 272 and the protruding portion 271 (see Figure 10(b)) be set in the same way as the distance D244a.

[0030] Figure 11 is a perspective view showing modified examples of shock dampers applicable to the first to third embodiments. As shown in Figure 11, the shock damper 211 has a first fixing part 212 that is rectangular in shape and a second fixing part 213 that is rectangular in shape. In this case, the intermediate member 232 is a member that is rectangular in shape and a ring.

[0031] Although preferred embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and various modifications and changes are possible within the scope of its gist.

[0032] Each embodiment disclosed includes the following configuration: (Configuration 1) A microphone body having a sound-collecting microphone element, A mounting part that is attached to the imaging device, It comprises a connecting part that connects the microphone body and the mounting part, The aforementioned connection part comprises a damping part that reduces vibrations transmitted from the imaging device to the microphone body, and a cover part that houses the damping part. The buffer portion comprises a first fixing portion fixed to the mounting portion, a second fixing portion fixed to the cover portion, and an elastic connecting portion that connects the first fixing portion and the second fixing portion. The connecting portion has a curved portion that curves at an intermediate position between the first fixing portion and the second fixing portion, and has a first surface and a second surface that face each other on the inside of the curve and can move closer to and further apart from each other. A microphone device characterized in that the first surface and the second surface are separated from each other in a natural state when no external force is applied. (Configuration 2) The microphone device according to Configuration 1, characterized in that the connecting portion is arranged in at least one of the optical axis direction of the imaging device and the width direction of the imaging device. (Configuration 3) The microphone device according to Configuration 1 or 2, characterized in that the first surface and the second surface are in contact with each other, and the tilt limit of the microphone device relative to the imaging device can be restricted. (Configuration 4) The connecting portion has at least two of the curved portions formed therein, The microphone device according to any one of configurations 1 to 3, characterized in that, of the two curved portions, the distance between the first surface and the second surface of the curved portion located on the first fixed portion side and the distance between the first surface and the second surface of the curved portion located on the second fixed portion side are different from each other. (Configuration 5) The microphone device according to Configuration 4, characterized in that the distance between the first surface and the second surface of the curved portion located on the first fixed portion side is longer than the distance between the first surface and the second surface of the curved portion located on the second fixed portion side. (Configuration 6) A microphone device according to any one of Configurations 1 to 5, characterized in that one of the first surface and the second surface is provided with a projection that protrudes toward the other surface and is movable toward and toward the other surface. (Configuration 7) The first fixing part is ring-shaped, The microphone device according to any one of configurations 1 to 6, characterized in that the second fixing portion is arranged in multiple locations on the outer circumference side of the first fixing portion, along its circumferential direction. (Configuration 8) The microphone device according to Configuration 7, characterized in that each of the second fixing parts is columnar in shape and its central axis is arranged parallel to the central axis of the first fixing part. (Configuration 9) Each of the second fixing parts is cylindrical in shape, The cover portion has a cover-side fixing portion that fixes the second fixing portion, The microphone device according to configuration 8, characterized in that the cover-side fixing portion is cylindrical in shape, into which the second fixing portion can be inserted in a loosely fitted state. (Configuration 10) The connecting parts are arranged in multiple locations along the central axis direction of the first fixing part, The microphone device according to any one of configurations 7 to 9, characterized in that the plurality of connecting portions are spaced apart from each other in the direction of the central axis of the first fixed portion. (Configuration 11) A plate-like portion is installed between adjacent second fixing portions, The microphone device according to any one of configurations 7 to 10, characterized in that the outer periphery of the first fixed portion is provided with a projection that protrudes toward the plate-like portion and is capable of moving toward and away from the plate-like portion. (Configuration 12) The microphone device according to Configuration 11, characterized in that the plate-shaped portion and the protruding portion are in contact with each other, and the tilt limit of the microphone device relative to the imaging device can be restricted. [Explanation of symbols]

[0033] 100 Digital Cameras 200 Microphone equipment (microphone) 210 Accessory shoe section 211 Shock damper 212 1st fixed part 213 Second fixed part 214 Arm 233 Middle Case 230 Body part 250 Microphone body

Claims

1. A microphone device used by being attached to an imaging device, A microphone body having a sound-collecting microphone element, A mounting part that is attached to the imaging device, It comprises a connecting part that connects the microphone body and the mounting part, The aforementioned connection part comprises a damping part that reduces vibrations transmitted from the imaging device to the microphone body, and a cover part that houses the damping part. The buffer portion comprises a first fixing portion fixed to the mounting portion, a second fixing portion fixed to the cover portion, and an elastic connecting portion that connects the first fixing portion and the second fixing portion. The connecting portion has a curved portion that curves at an intermediate position between the first fixing portion and the second fixing portion, and has a first surface and a second surface that face each other on the inside of the curve and can move closer to and further apart from each other. A microphone device characterized in that the first surface and the second surface are separated from each other in a natural state when no external force is applied.

2. The microphone device according to claim 1, characterized in that the connecting portion is arranged in at least one of the optical axis direction of the imaging device and the width direction of the imaging device.

3. The microphone device according to claim 1, characterized in that the first surface and the second surface are in contact with each other, and the tilt limit of the microphone device relative to the imaging device can be restricted.

4. The connecting portion has at least two of the curved portions formed therein. The microphone device according to claim 1, characterized in that, of the two curved portions, the distance between the first surface and the second surface of the curved portion located on the first fixed portion side and the distance between the first surface and the second surface of the curved portion located on the second fixed portion side are different from each other.

5. The microphone device according to claim 4, characterized in that the distance between the first surface and the second surface of the curved portion located on the first fixed portion side is longer than the distance between the first surface and the second surface of the curved portion located on the second fixed portion side.

6. The microphone device according to claim 1, characterized in that one of the first surface and the second surface is provided with a projection that protrudes toward the other surface and is movable toward and toward the other surface.

7. The first fixing part is ring-shaped, The microphone device according to claim 1, characterized in that a plurality of the second fixing parts are arranged on the outer circumference side of the first fixing part, along its circumferential direction.

8. The microphone device according to claim 7, characterized in that each of the second fixing parts is columnar in shape and its central axis is arranged parallel to the central axis of the first fixing part.

9. Each of the aforementioned second fixing parts is cylindrical in shape. The cover portion has a cover-side fixing portion that fixes the second fixing portion, The microphone device according to claim 8, characterized in that the cover-side fixing portion is cylindrical in shape, into which the second fixing portion can be inserted in a loosely fitted state.

10. The connecting portions are arranged in multiple locations along the central axis direction of the first fixing portion. The microphone device according to claim 7, characterized in that the plurality of connecting portions are spaced apart from each other in the direction of the central axis of the first fixed portion.

11. A plate-like portion is installed between adjacent second fixing portions. The microphone device according to claim 7, characterized in that the outer periphery of the first fixed portion is provided with a projection that protrudes toward the plate-like portion and is capable of moving toward and away from the plate-like portion.

12. The microphone device according to claim 11, characterized in that the plate-like portion and the protruding portion are in contact with each other, thereby regulating the tilt limit of the microphone device relative to the imaging device.

Images