JP2022065376A - Drive device, cleaning device, and drive method - Google Patents

Abstract

To prevent a light receiving portion of a camera or the like from being contaminated.SOLUTION: A cylindrical gear 1 of a drive device has projections 1a on an outer periphery of its cylindrical portion that are arranged in a direction along a first axis C, and in a circumferential direction. The cylindrical gear 1 has a first moving body 2 on one end in the direction of the axis (along the first axis C). A second moving body 3 is arranged outside on the one end where the first moving body 2 is arranged. A conversion mechanism 4 converts the movement of the cylindrical gear 1 in the direction along the first axis C between the first moving body 2 and the second moving body 3, into the movement of the second moving body 3.SELECTED DRAWING: Figure 1

Description

The present invention relates to a drive device, a cleaning device, and a drive method.

For example, in the case of an optical device or optical element used outdoors such as a surveillance camera, it is necessary to remove rainwater, mud, leaves, etc. (hereinafter collectively referred to as dirt) adhering to the surface on which light is incident.
Patent Documents 1 to 3 are related techniques having such a purpose.
The movable in-vehicle camera device described in Patent Document 1 adopts a configuration in which the housing in which the camera is housed is rotated to switch between a shooting position in which the lens faces outward and a storage position in which the lens faces inward. are doing.
The dustproof shutter for a camera described in Patent Document 2 employs a configuration in which the surface of the front glass is covered with a shutter or retracted from this position by a shutter that slides in front of the front glass of the camera.
The device for protecting the optical sensor and the cleaning method thereof described in Patent Document 3 employ a configuration in which the optical camera is rotated about its optical axis.

Japanese Unexamined Patent Publication No. 5-338492 Japanese Unexamined Patent Publication No. 10-294886 Special Table 2019-535580 Gazette

However, in Patent Document 1, although it is possible to prevent dirt from adhering to the lens in the unused state when the image is not taken, the lens is exposed to the outside in the photographed state, so that the lens is exposed outdoors. It is not possible to prevent the adhesion of dirt such as rainwater and dust during use. Therefore, once dirt adheres to the lens, there is a problem that the adhered dirt cannot be properly removed without human intervention.
Further, even in Patent Document 2, there is a problem that once dirt adheres to the front glass with the shutter open, the adhered dirt cannot be properly removed without manual intervention.
Further, in Patent Document 3, although dirt can be constantly removed by the action of centrifugal force due to rotation, electric power is required to continuously rotate the entire camera, and centrifugal force is used indirectly. Since it is a method of removing stains, for example, if the stains are dried and firmly adhered, there is a problem that it is difficult to sufficiently remove the stains without relying on human hands.

The present invention has been made in view of the above problems, and an object thereof is to prevent stains on the light receiving portion, more specifically, to prevent adhesion of stains and / or to remove the adhered stains. do.

In order to solve the above problems, the present invention proposes the following means.
The drive device according to the first aspect of the present invention is provided with a cylindrical gear having protrusions on the outer periphery of the cylindrical surface in each of the directions along the first axis and the circumferential direction, and one end side of the cylindrical gear in the axial direction. The first moving body, the second moving body provided at a position outside the one end side from the first moving body, and the first moving body and the second moving body. It has a conversion mechanism that converts the movement of the cylindrical gear in the first axial direction into the movement of the second moving body.

The driving method according to the second aspect of the present invention is to rotate a cylindrical gear having protrusions on the outer periphery of the cylindrical surface along the first axis and in each of the circumferential directions around the first axis. The step of rotating the first moving body provided on one end side in the axial direction of the cylindrical gear, the step of moving the cylindrical gear along the first axis line, and the first step of the cylindrical gear. It has a step of converting the movement in the direction along the axis into the movement of the second moving body provided at a position outward from the one end side from the first moving body.

INDUSTRIAL APPLICABILITY According to the present invention, by using the driving device and the driving method, it is possible to prevent stains on an object such as an optical device.

It is a perspective view of the minimum configuration example of this invention. It is a perspective view which shows the appearance of the drive device which concerns on 1st Embodiment of this invention. The operation of the drive device according to the first embodiment of the present invention will be described, where (a) is an internal perspective view with the lid closed, and (b) is an internal side view of the state of (a). , (C) is a perspective view of a state in which the lid closed in the state of (a) is opened. 2 is a perspective view of the lid shown in FIGS. 2 and 3 as viewed from the inside. It is a perspective view which shows the appearance of the drive device which concerns on 2nd Embodiment of this invention. It is a side view of the drive device which concerns on 2nd Embodiment of this invention. It is a top view of the drive device which concerns on 2nd Embodiment of this invention. The operation of the drive device according to the third embodiment of the present invention will be described, where (a) is an internal perspective view with the lid closed, and (b) is an internal perspective view with the lid open. Is. (A) is an internal side view of the drive device of FIG. 8A with the lid closed, and FIG. 8B is an internal side view of the drive device of FIG. 8A with the lid open. be. It is explanatory drawing of the operation example of the drive device of 1st and 3rd Embodiment, (a) is a cleaning operation by rotation, (b) is a linear operation, (c) is a range of rotation operation, (d) is a lid. It indicates a state in which the body is closed and stopped. It is a perspective view which shows the modification 1 of the support structure of a cylindrical gear. It is a front view of the support structure of the modification 1. It is a front view of the modification 2 which changed the transmission part of a cylindrical gear and a transmission member.

An example of the minimum configuration of the drive device according to the present invention will be described with reference to FIG.
Reference numeral 1 is a cylindrical gear, and the cylindrical gear 1 has a direction C along the first axis and convex portions 1a arranged along each of the circumferential directions on the outer periphery of the cylindrical surface. The cylindrical gear 1 has a first moving body 2 on one end side in the direction of the axis (along the first axis) C. The second moving body 3 is arranged at a position outside the one end side of the first moving body 2. The conversion mechanism 4 converts the movement of the cylindrical gear 1 in the first axial direction C between the first moving body 2 and the second moving body 3 into the movement of the second moving body 3. .. The first moving body 2 in FIG. 1 is integrally with a device such as a camera provided inside the cylindrical gear 1 and integrally moving, which is shown by a solid line in the figure, or a cylindrical gear 1 shown by a broken line in the figure. It is a member that rotates and transmits the rotation to another member (a conversion mechanism in the illustrated example). That is, a device such as a camera is integrally fixed to the cylindrical gear 1 as the first moving body 2, or is fixed independently of the cylindrical gear 1.

In the drive device having the above configuration, by moving the cylindrical gear 1 in a linear direction along the first axis C and in a rotational direction about the first axis C, the first moving body 2 It can be converted into the movement of the second moving body 3.

The driving method according to the second aspect of the present invention can be carried out by, for example, the driving device shown in FIG. That is, by rotating the cylindrical gear 1 having protrusions on the outer periphery of the cylindrical surface along the first axis C and in the circumferential direction about the first axis, the axis of the cylindrical gear 1 ( A step of rotating the first moving body 2 provided on one end side in the first axis C) direction, a step of moving the cylindrical gear 1 along the first axis C, and a step of the cylindrical gear 1. The present invention includes a step of converting the movement in the direction along the first axis C into the movement of the second moving body 3 provided at a position outward from the one end side of the first moving body 2. ..

In the driving method having the above configuration, the second moving body 3 is moved by moving the cylindrical gear 1 in a linear direction along the first axis C and in a rotational direction about the first axis C. Can be moved.

(First Embodiment)
The configuration according to the first embodiment of the present invention embodying FIG. 1 will be described with reference to FIGS. 2 to 4. In FIGS. 2 to 4, the same components as those in FIG. 1 are designated by the same reference numerals, and the description thereof will be simplified.
FIG. 2 shows the appearance of the camera 5 provided with the drive device, and reference numeral 6 indicates the appearance of the camera 5 and is a housing for accommodating the entire device.
The housing 6 has a rectangular parallelepiped shape as a whole and has a circular opening 6a at one end. The opening 6a is opened and closed by a lid 21 as a second moving body. The detailed configuration of the lid 21 will be described later.

The camera body 5a inside the housing 6 is inside the cylindrical gear indicated by reference numeral 11 in FIGS. 3A to 3C, and does not buffer the movement locus of the cylindrical gear 11 inside the housing 6. It is arranged at a position and is supported in the housing 6 by a connecting member (not shown). Further, the camera body 5a is supported so as to be movable in the left-right direction (axial direction of the cylindrical gear 11) in FIG. 3 via a spring or the like (not shown).
The cylindrical gear 11 has a cylindrical shape centered on the first axis C1, and on its surface, a tooth-shaped convex portion 1a of the gear protruding outward in the radial direction is centered on the first axis C1. It is provided at predetermined equal intervals in the circumferential direction, and is provided at predetermined equal intervals in the linear direction parallel to the first axis C1. The mutual spacing of the convex portions 1a in the circumferential direction (so-called gear pitch) and the mutual spacing in the linear direction parallel to the first axis C1 may be the same or different. In the examples of FIGS. 3A to 3C, the rotation range of the cylindrical gear 11 is about 180 degrees (half rotation) around the axis C1, so that the convex portion 1a constituting the cylindrical gear 11 is formed. , Is formed in a range exceeding about half the circumference of the surface of the cylindrical gear 11.

At the end of the cylindrical gear 11 on the opening 6a side (the left end of FIGS. 3A to 3C), a guide member 41 that can move integrally with the cylindrical gear 11 is provided. The guide member 41 is formed with an elongated hole-shaped guide portion 41a in the vertical direction, and a pin 43 integrally provided at one end of an L-shaped crank-shaped transmission member 42 is slid and straightened. I will guide you in the form.
A pin 44 is integrally provided at the center of the transmission member 42 (a portion corresponding to an L-shaped corner) toward the second axis C2. A first support member 6b is provided on the bottom surface of the housing 6, and the annular groove 6c provided on the upper portion of the first support member 6b makes the second support member 45 the annular groove 6c. It is rotatably supported around the first axis C1 along the above. The second support member 45 rotatably supports the pin 44 of the transmission member 42 about the second axis C2.

The bottom plate portion 6d inside the housing 6 is provided with, for example, a first drive device 7 configured by an electric motor and a second drive device 8. The first drive device 7 rotates the cylindrical gear 11 about the first axis C1 by rotating the gear 7a around an axis parallel to the first axis C1. Further, the second drive device 8 rotates the gear 8a around an axis parallel to the second axis C2 orthogonal to the first axis C1 to rotate the cylindrical gear 11 to the first axis C1. Move in a straight line along.
That is, the first drive device 7 rotates the cylindrical gear 11 around the axis C1 in the direction of the arrow A in FIG. 3A, and the second drive device 8 rotates the cylindrical gear 11 in FIG. 3 (a). Move linearly in the direction of arrow B in a).

The lid 21 provided with a part exposed from the opening 6a of the housing 6 has a shape forming a part of a spherical shell as a whole, and the inside thereof, as shown in FIG. 4, has a shape. Cleaning members 22 made of flexible materials such as brushes and cloths are arranged and provided in an annular shape. The cleaning member 22 in the first embodiment is provided so as to project toward the inside of the housing 6 (camera body 5a) and is configured to come into contact with the front surface of the camera body 5a. The front surface of the camera body 5a is in front of the position where it intersects the movement locus of the tip of the cleaning member 22, and is behind the position where it intersects the root of the cleaning member 22 or the movement locus of the inner surface of the lid 21. It is assumed that the position is supported in a state where it can be restored by the elastic force to the left when moving to the right in FIG. 3 by the urging of a spring or the like (not shown).
Further, the transmission member 42 is provided on the back side of the lid 21 (the side facing the cylindrical gear 11) in pairs with the lid 21 displaced by 180 degrees in the circumferential direction.

The operation of each member constituting the drive device of the first embodiment will be described together with the overall operation.
As shown in FIGS. 2 and 3A, the camera 5 of the first embodiment is in a position where the lid 21 closes the opening 6a of the housing 6. The lid 21 covers and protects the surface of the optical lens on which light is incident in the camera body 5a.

When the first drive device 7 is repeatedly rotated forward and reverse (clockwise and counterclockwise) in the state of FIG. 3A, the gear 7a meshes with the cylindrical gear 11 and rotates about the first axis C1. .. Along with this rotation, the guide member 41 and the transmission member 42 rotate around the axis C1 together with the cylindrical gear 11, and when the lid 21 integrated with these is rotated, the cleaning member 22 inside the lid 21 becomes a camera. It can be rotated while in contact with the surface of the main body 5a to remove dirt adhering to the surface of the camera main body 5a. In the first embodiment, since the convex portion 1a is formed in a range covering about half the circumference of the surface of the cylindrical gear 1, the drive device 7 covers about half a circumference in the direction of the arrow in FIG. 3A. The rotation from the forward direction to the reverse direction around the axis C1 is repeated.

In the state of FIG. 3A, when the gear 8a is rotated counterclockwise in the figure by the second drive device 8, the gear 8a meshes with the cylindrical gear 11 and the cylindrical gear 11 becomes the first axis C1. It is moved to the left of FIGS. 3 (a) and 3 (b) along the line. Along with this movement, the pin 43 slides along the guide portion 41a of the guide member 41, rotates the transmission member 42 clockwise around the pin 44 (axis C2), and the lid attached to one end of the transmission member 42. The body 21 is moved upward as shown in FIG. 3 (b). By this movement, the front surface of the first moving body 2 faces the outside of the housing 6 through the opening 6a of the housing 6, and light can be received by the camera body 5a through the opening 6a. That is, it is in a state where it can be photographed by the camera 5.

Further, in the state of FIG. 3 (b), when the gear 8a is rotated clockwise by the second drive device 8, the cylindrical gear 11 is rotated along the first axis C1 from FIG. 3 (b). As in c), the first moving body 2 moves to the right together with the cylindrical gear 11. Along with this movement, the transmission member 42 rotates counterclockwise in FIG. 3B about the pin 44 (axis C2) while the pin 43 moves downward in the guide portion 41a, and the tip of the transmission member 42 The lid 21 is rotated in the direction of arrow A as shown in FIGS. 3 (b) to 3 (c), the lid 21 is moved to the front of the first moving body 2 and the cylindrical gear 1, and the camera body 5a The front surface is covered with the lid 21.

According to the above configuration, as the cylindrical gear 11 rotates, the cleaning member 22 inside the lid 21 can be brought into contact with the surface of the camera body 5a for cleaning. Further, as the cylindrical gear 11 moves in the axial direction, the lid 21 can be rotated upward to open the opening 6a of the housing 6 so that external light can be incident on the camera body 5a. ..

(Second Embodiment)
A second embodiment of the present invention will be described with reference to FIGS. 5 to 7. In the figure, the same components as those of the first embodiment are designated by the same reference numerals to simplify the description.
In the second embodiment, the camera body 5a is housed in the cylindrical gear 11, fixed and movable integrally.
The cylindrical gear 11 has an annular portion 11a at its tip (left end in FIG. 6), is movable in the left-right direction in FIG. 6 along the floor plate portion 6d, and is rotatably supported around the axis of the cylindrical gear 11. ing.
Further, a receiving member (not shown) that has a recess (annular groove) corresponding to the annular portion 11a of the cylindrical gear 11 and is mounted on the bottom plate portion 6d and slidable in the axis C1 direction supports the cylindrical gear 11. are doing.
Further, the annular portion 11a is provided with a protrusion 11b protruding outward in the radial direction. The protrusion 11b is arranged at a position avoiding a support range by the receiving member (not shown) in the circumferential direction of the annular portion 11a. The action of the protrusion 11b will be described later.

A lid support member 6e for supporting the lid 21 is provided upward on the bottom plate portion 6d of the housing 6 at a position away from the cylindrical gear 11 on the tip end side (left side in FIG. 6). ..
A pin 44 facing in the horizontal direction is provided on the upper portion of the lid support member 6e. A crank-shaped transmission member 42A having an L-shape when viewed from the side is rotatably supported on the pin 44. Further, the transmission member 42A is provided with a restoring force from the clockwise rotation of FIG. 6 by the return force after the elastic deformation of the torsion spring 6g in the direction in which the winding is loosened. The transmission member 42A is arranged at a position where a part of the rotation locus intersects with the movement locus of the protrusion 11b in the left-right direction of FIG.

The lid 21 is provided at the end of the transmission member 42A. Although not shown in FIGS. 5 to 7, the cleaning member 22 of FIG. 4 showing the first embodiment is provided inside the lid 21. Further, the relative position between the length of the cleaning member 22 and the camera 5a is one of the moving ranges of the cylindrical gear 11 in which the lid 21 is closed (the protrusion 11b is not pushing the transmission member 42A), and the camera body is the camera body. It is assumed that the front surface of 5a is in front of the tip of the cleaning member 22 inside the lid 21, and is arranged behind the root of the cleaning member 22 or the inner surface of the lid 21.

In the second embodiment, when the cylindrical gear 11 is moved to the left from the state shown in FIG. 6 by the first drive device 7, the protrusion 11b comes into contact with the transmission member 42A.
When the protrusion 11b further moves to the left, the protrusion 11b rotates the transmission member 42A clockwise while pushing the transmission member 42A. Along with this rotation, the torsion spring 6g is elastically deformed, and a counterclockwise restoring force of FIG. 6 is applied to the transmission member 42A. As the transmission member 42A rotates, the lid 21 moves upward to open the opening 6a of the housing 6. Further, as the cylindrical gear 11 moves, the camera body 5a moves to the position of the opening 6a or a position outside the opening 6a, and is in a shooting state in which external light can be incident. When the camera body 5a is moved to the left of FIG. 6 by a predetermined amount, the movement of the cylindrical gear 11 by the first drive device 7 is stopped.

After that, when the image is not taken (for example, the ignition key of the vehicle equipped with the camera is turned off), the first drive device 7 is rotated in the reverse direction to move the cylindrical gear 11 to the right in the figure. Along with this movement, the protrusion 11b separates from the transmission member 42A, the transmission member 42A rotates counterclockwise in FIG. 6 due to the restoring force of the torsion spring 6g, and the lid 6 closes the opening 6a.

When the cylindrical gear 11 is rotated by the second drive device 8 in the state shown in FIG. 6, the cleaning member inside the lid 6 (not shown in FIGS. 5 to 7) comes into contact with the front surface of the camera body 5a and becomes dirty. , Wipe off water drops, etc.
The rotation of the cylindrical gear 11 is configured to repeat forward and reverse rotation, for example, so as not to interfere with the protruding range of the protruding 11b of the annular portion 11a of the cylindrical gear 11. If it is desired to increase the rotation range, a slip ring or the like may be adopted for the connection portion with the camera body 5a in consideration of the rubbing of the cable or the like to form a rotatable configuration.

A modified example of the support structure of the cylindrical gear 11 when the cylindrical gear 11 is continuously rotated in one direction will be described with reference to FIGS. 11 to 13.
Modification 1 of FIGS. 11 and 12 adopts a configuration in which smooth cylindrical surfaces 11c are provided on both sides of a region where the convex portion 1a is formed as the cylindrical gear 11B.
This cylindrical surface is supported by the support portion 9 shown in FIG.
The support portion 9 has an annular portion 9a that can slide with the cylindrical surface of the cylindrical gear 11B, and the lower portion of the annular portion 9a has a support column 9b that rises from the floor plate portion 6d of the housing 6.
The annular portion 9a slides on the region of the cylindrical surface of the cylindrical gear 11B to support the cylindrical gear 11B while allowing movement in the rotational direction and the axial direction.

Modification 2 of FIG. 13 has a configuration in which a protrusion 46 parallel to the pin 44 is provided on the transmission member 42A instead of the protrusion 11b provided on the annular portion 11a of the second embodiment. Since the annular portion 11a does not have the protrusion 11b, it has a smooth cylindrical surface over the entire circumference, and by supporting this cylindrical surface, continuous rotation in one direction of the cylindrical gear 11 becomes possible. ..

(Third Embodiment)
A third embodiment of the present invention will be described with reference to FIGS. 8 and 9. This third embodiment enables continuous rotation of the cylindrical gear 11 in one direction, in which forward rotation and reverse rotation are alternately repeated in the first embodiment. In the figure, the same components as those in FIGS. 1 to 7 are designated by the same reference numerals to simplify the description.
Reference numeral 11A is a cylindrical gear, and the cylindrical gear 11A has a cylindrical shape centered on the first axis C1. The portions 1a are provided at predetermined equal intervals in the circumferential direction about the first axis C1 and at predetermined equal intervals in the linear direction parallel to the first axis C1. It is provided throughout. The mutual spacing of the convex portions 1a in the circumferential direction and the mutual spacing in the linear direction parallel to the first axis C1 may be the same or different.

Inside the housing 6, first support members 6b are provided at two locations at intervals of 180 degrees in the circumferential direction about the first axis C1, and these first support members 6b are provided. The annular groove 6c provided in the ring rotatably supports the annular second support member 45A. A support piece integrated with the second support member 45A is located on the inner peripheral side of the second support member 45A and at a position inside the inner peripheral surface of the cylindrical gear 11A when viewed from the direction of the axis C1. The pin 44 is supported by 45a. The transmission member 42 is provided so as to be rotatable around the pin 44. The front surface of the camera body 5a is in front of the position where it intersects the movement locus of the tip of the cleaning member 22, and is behind the position where it intersects the root of the cleaning member 22 or the movement locus of the inner surface of the lid 21. It is assumed that the position is supported in a state where it can be restored by the elastic force to the left when moving to the right in FIG. 3 by the urging of a spring or the like (not shown).

Inside the cylindrical gear 11A, a guide member 41 having an elongated hole-shaped guide portion 41a is provided. A pin 43 provided at one end of the transmission member 42 is inserted into the guide portion 41a. The pin 43 can slide and move in the guide portion 41a with the rotation of the transmission member 42.

In the third embodiment, the lid 21 can be opened and closed by moving the cylindrical gear 11A in the axial direction, and the cleaning member inside the lid 21 can be opened and closed by the rotation of the cylindrical gear 11A (shown in FIG. 8). Can be cleaned by contacting the front surface of the camera body 5a.

In the first embodiment or the third embodiment, an operation example of the cylindrical gear 11 (11A) for rotating and cleaning the lid 21 with respect to the camera body 5a will be described with reference to FIG.
Similar to the first embodiment, the camera body 5a is arranged with a predetermined gap inside the cylindrical gear 11A and is urged along the axial direction of the cylindrical gear 11A by a spring or the like (not shown). Further, in a normal non-use state, as shown in FIG. 10A, the lid 21 is in a position where the opening 6a of the housing 6 is closed and covers the front surface of the camera body 5a.
When the first drive device 7 is rotated in one direction around the axis C1 in the state of FIG. 10A, the gear 7a meshes with the cylindrical gear 11A and rotates around the first axis C1. Along with this rotation, the guide member 41 and the transmission member 42 rotate around the axis C2 together with the cylindrical gear 11A, and when the lid 21 integrated with these is rotated, the cleaning member 22 inside the lid 21 (FIG. FIG. The stains on the surface of the camera body 5a are removed by (not shown in 8 and 9). Since the camera body 5a is urged to the left side in the drawing by a spring (not shown), the pressure required for cleaning is applied to the cleaning member (not shown in FIGS. 8 and 9) on the inner surface of the lid 21 by this urging. Can be contacted with.
Further, the radius of curvature of the lid 21, the inner diameter of the opening 6a, and the dimensions and moving range of the camera body 5a with respect to these are the shooting direction required by the camera body 5a for its application, the wide viewing range, and further. It may be appropriately changed according to conditions such as the inner diameter and the outer diameter of the cylindrical gear 11 (11A).

Further, when the gear 8a is rotated counterclockwise in FIGS. 8 and 9 by the second drive device 8, the pin 43 moves in the guide portion 41a of the guide member 41, and the movement causes the transmission member 42 to pin 44. Rotate clockwise as the center. Due to the rotation of the transmission member 42, the lid 21 integrated with the transmission member 42 rotates upward as shown in FIG. 10B while in contact with the surface of the first moving body 2. By contacting the cleaning member provided inside the 21 (not shown in FIGS. 8 and 9), dirt adhering to the surface of the first moving body 2 can be removed.

That is, by rotating the first drive device 7, as shown in FIG. 10A, the lid 21 can be rotated about the axis C1 to remove dirt from the tip of the first moving body 2. .. Next, by rotating the second drive device 8, the lid 21 can be moved upward as shown in FIG. 10B, and a light ray can be incident on the camera body 5a from the opening 6a to perform photography or the like. ..
After the photographing by the first moving body 2 is completed, the second driving device 8 is reversed to rotate the lid 21 around the pin 44 and the opening 6a as shown in FIG. 10 (c). When the camera body 5a is pushed while the camera body 5a is closed and the spring (not shown) is deformed and pulled in, and the second drive device 8 is reversed, the position where the cylindrical gear 11A is further separated from the opening 6a is retracted, and the next It will be in a standby state for shooting. In this rotation, since each part of the lid 21 moves along the rotation locus shown by the broken lines r1 and r2 in FIG. 10C, it does not interfere with the tip of the first moving body 2.

In the first, second, and third embodiments described above, the case where the first moving body is a cylindrical gear (or a camera body supported by the cylindrical gear) has been described, but the first moving body according to the present invention, the second. The drive device of the moving body can also be used for the outlet of the air conditioner, the air volume in the air flow path, the adjustment of the wind direction, the operation of the gimmick in the game machine, and the like.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment and includes design changes and the like within a range not deviating from the gist of the present invention.

The present invention relates to a drive device, a cleaning device, and a drive method.

1 Cylindrical gear 1a Convex part 2 First moving body 2a Cable 3 Second moving body 4 Conversion mechanism 5 Camera 5a Camera body 6 Housing 6a Opening 6b First support member 6c Circular groove 6d Floor plate part 6e Lid support Member 6g Torsional spring 7 First drive device 7a Gear 8 Second drive device 8a Gear 9 Support part 9a Ring part 9b Strut 11, 11A, 11B Cylindrical gear 11a Ring part 11b Projection 11c Cylindrical surface 21 Lid 22 Cleaning member 41 Guide member 41a Guide portion 42, 42A Transmission member 43 Pin 44 Pin 45, 45A Second support member 45a Support piece 46 Projection C, C1 First axis (axis)
C2 2nd axis (axis)

Claims (8)

A cylindrical gear having protrusions on the outer circumference of the cylindrical surface in the direction along the first axis and in the circumferential direction, respectively.
A first moving body provided on one end side in the axial direction of this cylindrical gear, and
A second moving body provided at a position outward from the one end side of the first moving body, and a second moving body.
A conversion mechanism that converts the movement of the cylindrical gear in the first axial direction between the first moving body and the second moving body into the movement of the second moving body.
Drive device with. The conversion mechanism has an arm rotatably supported around a second axis oriented in a direction intersecting the first axis.
One end of the arm away from the second axis in one direction is connected to the second moving body.
The other end of the arm, which is separated from the second axis in the other direction, is rotatably connected to the cylindrical gear about a third axis provided substantially parallel to the second axis.
The drive device according to claim 1. The first moving body is a camera that shoots outward from the one end side.
The second moving body is a cover that covers the front surface of the camera.
The driving device according to any one of claims 1 or 2. The drive device according to claim 3, wherein a wiping member that can come into contact with the front surface of the camera is provided on the inner surface of the second moving body. The cylindrical gear repeats forward rotation and reverse rotation over an angle of less than one rotation about the first axis.
The drive device according to any one of claims 1 to 4. The cylindrical gear rotates in one direction over an angle of one or more rotations about the first axis.
The drive device according to any one of claims 1 to 4. A cleaning member that comes into contact with the first moving body as the second moving body moves is provided on the surface of the second moving body provided in the drive device of the first aspect toward the first moving body. A cleaning device provided. A cylindrical gear having protrusions on the outer periphery of the cylindrical surface in the direction along the first axis and in the circumferential direction is rotated around the first axis so as to be provided on one end side in the axial direction of the cylindrical gear. The process of rotating the first moving body and
The step of moving the cylindrical gear along the first axis, and
A step of converting the movement of the cylindrical gear in a direction along the first axis into the movement of a second moving body provided at a position outward from the one end side of the first moving body.
Driving method having.

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