KR20190059106A - Dust removal apparatus for camera - Google Patents

Abstract

The present invention relates to a foreign matter removing device for a camera. According to the present invention, the foreign matter removing device for a camera comprises: a driving module (10) operated by power of a driving source; a lens cover (50) installed on the front surface of a camera (C) lens to protect the camera (C) lens, and installed to be able to rotate and linearly move; an actuator (20) interlocking with operation of the driving module (10) to linearly reciprocate along a predetermined path so as to linearly move and primarily rotate the lens cover (50) by a predetermined angle; a rotation guide (30) secondarily rotating the lens cover (50) by a predetermined angle in the same direction as that of first rotation while being relatively moved with respect to the actuator (20) and engaged with the lens cover (50); and an elastic member (S). When an elastic force is provided to the lens cover (50) in a rotation guide (30) direction such that a force of the driving module (10) pushing the lens cover (50) is removed, the elastic member (S) allows the lens cover (50) to be engaged with the rotation guide (30) while moving the lens cover (50) again in a rotation guide (30) direction. Accordingly, the lens cover (50) installed on the front side of the camera (C) lens is automatically rotated and linearly moved by a driving source, and thus foreign matters, such as rainwater, and the like, put on a surface can be naturally removed during such process.

Description

[0001] Dust removal apparatus for camera [0002]

The present invention relates to a foreign substance removing device for a camera, and more particularly, to a foreign substance removing device for preventing foreign substances such as rainwater from being adhered to a lens of a camera to prevent interference with the visual field.

As cameras have been used for a variety of purposes, the surveillance cameras have been installed in order to secure the visibility of a blind spot, which is difficult for a driver sitting in the driver's seat to see as the passenger car becomes larger and more advanced. Such a surveillance camera for a vehicle is installed at the front and rear of the automobile to widen the view of the driver.

However, the surveillance camera used in such a state that it is exposed to the outside tends to be contaminated with foreign substances. For example, in the case of rain, rainwater is formed on the lens portion of the camera, so that accurate images can not be obtained, and a driver may have difficulty in securing a field of view through a camera, thereby causing a safety accident.

Of course, the user can wipe out foreign matters on the camera lens, but this requires separate manual work, and in the case of a car camera, it is difficult to remove foreign matter during operation.

Korean Patent No. 10-0757598 Korean Patent Publication No. 10-2011-0026220

Disclosure of Invention Technical Problem [8] The present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to automatically remove a foreign matter adhering to a lens of a camera.

According to an aspect of the present invention for achieving the above object, the present invention provides a camera module including a driving module driven by a driving source, a driving module mounted on a front surface of the camera lens to protect the camera lens, An actuator that linearly reciprocates the lens cover while linearly reciprocating along a predetermined path in conjunction with the operation of the driving module and linearly moves the lens cover by a predetermined angle and rotates relative to the actuator, A rotation guide for rotating the lens cover in the same direction as the first rotation by a predetermined angle in the course of the rotation of the lens cover and an elastic force applied to the lens cover in the rotation guide direction, The lens cover is moved in the direction of the rotation guide again, And a resilient member engaged with the rotation guides.

The actuator includes a first rotation gear projecting toward the lens cover, and a lens protrusion provided on the lens cover to engage with the first rotation gear. When the actuator moves, the driving projection is engaged with the first rotation gear, The cover is linearly moved, and the lens cover is first rotated during the movement of the drive projection along the inclination of the primary rotation gear.

The front surface of the rotation guide and the rear surface of the lens cover facing each other are provided with a secondary rotation gear and a driven gear so that the lens cover is rotated secondarily in the process of engaging the secondary rotation gear with the driven gear.

When the lens cover is first rotated, the driven gear of the lens cover is brought into a state of being able to engage with the second rotation gear which is next to the engaged second rotation gear. When the lens cover is rotated secondarily, The drive projection is in a state in which it can be engaged with the primary rotation gear of the actuator which is adjacent to the primary rotation gear of the engaged actuator.

The lens cover is provided with a drive projection engaging with the primary rotation gear, and the lens cover is moved in a direction away from the rotation guide by a drive projection engaged with the primary rotation gear , The lens cover is first rotated by a predetermined angle in a process in which the driven gear is engaged with the secondary rotation gear and the driving projection is moved inward along the inclination of the primary rotation gear .

The driven gear of the lens cover rotated by the actuator rotates in the direction of the rotation guide by the elastic member, and is engaged with the second rotating gear which is adjacent to the second rotating gear engaged before, do.

The driving module is provided with a rotation axis eccentric from the center of the driving module so that the driving module linearly moves the actuator while rotating around the rotation axis.

The actuator has a guide slit, and the rotation guide is fixedly installed. The guide slit is engaged with the guide slit, and the guide protrusion allows the actuator to linearly move in a predetermined path.

The actuator includes an actuator body having an inner space opened therein, an actuating part protruding from one side of the actuator body and connected to the driving module, and a plurality of protrusions continuously protruding along the front edge of the actuator body, And a primary rotation gear for primary rotation of the lens cover while engaging with the driving projection.

The lens barrel includes a lens barrel and a lens barrel. The lens barrel barrel is rotatably mounted on the lens barrel. The lens barrel is rotatably mounted on the lens barrel, And a secondary rotation gear for secondary rotation of the cover.

Wherein a second rotation slope is formed at an angle different from that of the second rotation gear and a relative rotation slope corresponding to the second rotation slope is formed at an angle different from that of the driven gear And the rotation guide and the lens cover are rotated relative to each other in the process of engaging the second rotation slope and the relative rotation slope.

The relative rotational inclination of the lens cover which is first rotated by the actuator corresponds to the second rotational inclination of the second rotational gear next to the second rotational inclination of the second rotational gear to which the driven gear is engaged.

The apparatus for removing a foreign body of a camera according to the present invention as described above has the following effects.

In the camera foreign object removing apparatus of the present invention, the lens cover installed in front of the camera lens is automatically rotated by the driving source and moved linearly, and foreign matter such as rainwater or the like adhering to the surface can be removed naturally. Therefore, the user can automatically obtain the field of view of the camera while removing the foreign substance, thereby improving the ease of use and stability.

In the present invention, the lens cover rotates at a certain angle while being engaged with the actuator and the rotation guide, and vibration occurs in the process. Therefore, the effect of removing the foreign substances on the lens cover is greater than that of simply moving the lens, and the user can obtain a clearer image.

Particularly, in the present invention, the linear motion and the rotational motion of the lens cover are generated by one drive module. The actuator, the rotation guide, and the lens cover are interlocked with each other during the rotation of the driving module, and the lens cover is linearly and rotationally moved in the course of the operation. Therefore, there is no need to provide a separate driving source for the linear motion and the rotational motion, Can be lowered, and the overall structure can be simplified.

The lens cover rotates by a certain angle in the process of moving away from the camera, and rotates in the same direction by a certain angle in the course of returning to the camera direction. Therefore, the linear motion and the rotational motion are always performed at the same time, and a larger vibration is generated in the process, so that the effect of removing the foreign matter can be further increased.

1 is a perspective view showing an embodiment of an apparatus for removing a foreign body of a camera according to the present invention.
Fig. 2 is an exploded perspective view showing the parts constituting one embodiment of Fig. 1 in an exploded state. Fig.
FIG. 3 is a perspective view of an embodiment shown in FIG. 1 at an angle different from FIG. 1; FIG.
FIG. 4 is a side view showing an initial stage of a process in which an embodiment of the present invention is operated; FIG.
5 is a side view showing a state in which an actuator is removed to show an internal structure in FIG.
FIG. 6 is a side view showing a second stage of a process in which an embodiment of the present invention is operated. FIG.
FIG. 7 is a side view showing a third step of a process in which an embodiment of the present invention is operated. FIG.
8 is a side view showing a state in which an actuator is removed to show an internal structure in FIG.
FIG. 9 is a side view showing a fourth step of a process in which an embodiment of the present invention is operated. FIG.
10 is a side view showing a state in which an actuator is removed to show an internal structure in FIG.
FIG. 11 is a side view showing five steps in a state in which a single rotation is performed in an operation of an embodiment of the present invention; FIG.
12 is a side view showing a state in which an actuator is removed to show an internal structure in FIG.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not intended to be interpreted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be " connected, " " coupled, " or " connected. &Quot;

The present invention relates to an apparatus for removing foreign objects from a camera. The present invention can be used mainly for a camera C used outside, for example, a surveillance camera or a vehicle camera installed in front of and behind the vehicle. The camera C is coupled to the camera module, It is used to prevent receiving. Here, since the camera C itself is not a main component of the present invention, a detailed description thereof will be omitted.

FIG. 1 is a block diagram of an apparatus for removing a foreign substance in a camera according to the present invention. For reference, the camera C is omitted in FIG. 1, and a camera C is installed inside a lens cover 50 installed on the front side. The lens cover 50 is made of a transparent material, so that the camera C can photograph the outside through the lens cover 50.

In view of the components of the present invention, the driving source for operating the present invention may be a motor (not shown), and the driving source provides power to the driving module 10. In this embodiment, a motor is assumed as a driving source. The driving module 10 rotates when the motor serving as the drive source provides the rotational force. The driving module 10 has a substantially disc shape and serves to push and move the actuator 20, which will be described below, during the rotation process.

Referring to FIG. 2, the driving module 10 has a disc-shaped module body 11, and a rotary shaft 15 is mounted thereon. The rotary shaft 15 is rotatably connected to the driving source. The rotary shaft 15 is eccentric from the center of the module body 11. Therefore, when the driving module 10 is rotated around the rotation axis 15, the driving module 10 continuously changes its direction of protrusion in the course of the rotation. 4, the driving module 10 protrudes to the right side of the rotary shaft 15 and the driving module 10 is moved to the left side of the rotary shaft 15 You can see the protruding. In this way, the direction in which the driving module 10 is projected is changed, and the state in which the actuator 20 is pushed or pushed gradually is released in the process. Although not shown, the drive module 10 is not necessarily rotated, and may be moved linearly. For example, the driving source itself may provide power for linear motion, and the driving module 10 may linearly move accordingly.

The driving module 10 moves the actuator 20 in a straight line. The actuator 20 linearly or rotationally moves the lens cover 50 while linearly moving, and has a substantially cylindrical incline as shown in Fig. The actuator 20 has two main functions. (I) First, the lens cover 50 is pushed to release the engagement with the rotation guide 30 to be described below. (Ii) .

The structure of the actuator 20 includes an actuator body 21 having an internal space 22 therein formed therein. The actuator body 21 has an inner space 22 opened in the front-rear direction, into which the rotation guide 30 is inserted. A guide slit 23 is formed in the side surface of the actuator body 21 to guide the movement of the actuator 20 by inserting the guide protrusion 33 of the rotation guide 30 described below. The actuator 20 is moved linearly by the structure of the guide projection 33 and the guide slit 23 so that the actuator 20 is moved to the rotation guide 30 Guidance.

An actuating part 25 protrudes from one side of the actuator body 21 and the actuating part 25 is connected to the driving module 10. The actuating part 25 is pushed by the driving module 10 and releases the pushing or pushing state of the actuating part 25 during the rotation of the driving module 10. The actuating part 25 protrudes downward from the actuator body 21.

On the front face of the actuator body 21, a primary rotary gear 27 is provided. The primary rotating gear 27 has a serrated shape in which a plurality of the primary rotating gears 27 are continuously protruded along the front edge of the actuator body 21. The primary rotation gear 27 pushes the lens cover 50 in the direction away from the rotation guide 30 while engaging with the drive projection 55 of the lens cover 50 to be described below, ) To rotate first. That is, when the actuator body 21 advances with the drive projection 55 interposed between the primary rotation gears 27, the lens cover 50 moves accordingly. When the drive projection 55 is rotated by the first rotation The lens cover 50 is rotated in the process of moving along the rotation slope 28 of the gear 27.

The primary rotation gear 27 has a rotation slope 28. The rotation slope 28 is for rotating the lens cover 50 by guiding the drive projection 55 and extends in an inclined direction with respect to the moving direction of the actuator 20. [ The driving inclined surface 56 of the driving projection 55, which will be described below, abuts against the rotating inclined surface 28. When the drive slope 56 moves along the rotation slope 28, the lens cover 50 is rotated. The rotation slope 28 is rotated such that the drive projection 55 can be rotated sufficiently along the rotation slope 28 It is preferable that the driving projection 55 is formed longer than the driving inclined surface 56.

Next, referring to the rotation guide 30, the rotation guide 30 is fixedly installed to guide the movement of the actuator 20 and rotate the lens cover 50 secondarily. More precisely, the rotation guide 30 normally catches the lens cover 50 so as not to rotate. However, when the lens cover 50 is moved back after the movement of the lens cover 50 starts, The lens cover 50 is rotated secondarily. The rotation guide 30 moves relative to the actuator 20 and rotates the lens cover 50 by a predetermined angle in the same direction as the first rotation in the process of engaging with the lens cover 50 .

The rotation guide 30 forms a skeleton of the guide body 31. The guide body 31 is accommodated in the internal space 22 of the actuator 20 and can accommodate the camera C And has a storage space 32 therein. The storage space 32 is a space open in the front-back direction and capable of storing the camera C. In this embodiment, the guide body 31 is cylindrical in the same manner as the actuator body 21.

On the side surface of the rotation guide (30), a guide projection (33) is provided. The guide protrusion 33 is located inside the guide slit 23 of the actuator 20 so that the actuator 20 linearly moves in a predetermined path. Of course, the rotation guide 30 may have a guide slit 23, and conversely, the actuator 20 may have a rotation projection. The shape of the guide protrusion 33 may be a simple protrusion or may be a rib shape elongated in a predetermined direction. Although not shown, the guide protrusions 33 may be provided on both sides of the rotation guide 30, and the end portions of the guide protrusions 33 may be fixed to the inside of the vehicle or the like, Lt; / RTI >

A second rotary gear 37 protrudes from the front edge of the guide body 31. The second rotary gear 37 is a gear having a gear shape continuously protruding along the front edge of the guide body 31. The second rotary gear 37 is normally engaged with the driven gear 57 of the lens cover 50, (Refer to FIG. 5). When the present invention is operated, the lens cover 50 is rotated secondarily.

More precisely, the secondary rotation gear 37 and the driven gear 57, which mesh with the front surface of the rotation guide 30 and the rear surface of the lens cover 50 facing the rotation guide 30, Is engaged with the driven gear 57, the lens cover 50 is secondarily rotated. The second rotary gear 37 and the driven gear 57 will not always rotate at the same position and rotate as long as the lens cover 50 is rotated in the linear direction without rotating the actuator 40. However, When the lens cover 50 is retracted, the driven gear 57 of the lens cover 50 is rotated in the first direction So that it can be engaged with the secondary rotation gear 37 adjacent to the engaged secondary rotation gear 37 (see Fig. 10).

In the structure of the second rotary gear 37, there is a main inclined face 38 and a second rotational inclined face 39 in front of it. The second rotation slope 39 is formed at an angle different from the main slope 38 of the secondary rotation gear 37. The relative rotation slope 59 of the lens cover 50 The lens cover 50 can be rotated secondarily. Referring to FIG. 10, when the lens cover 50 is retracted, the relative rotation slope 59 first touches the second rotation slope 39. In this state, when the elastic member S pushes the lens cover 50 And the lens cover 50 is secondarily rotated by the inclination angle of the inclined surface. Since the rotation guide 30 is in a fixed state as described above, only the lens cover 50 is rotated in the process of engagement of the secondary gear 37 and the driven gear 57.

Next, when the lens cover 50 is viewed, the lens cover 50 has a skeleton formed by a substantially disc-shaped cover body 51 made of a transparent material. Then, the camera C can photograph the outside through the front portion 52 of the cover body 51. External foreign matter is deposited on the front surface portion 52 of the lens cover 50, not on the camera C, and such foreign matter can be removed when the present invention operates. For this, the lens cover 50 performs a linear motion and a rotational motion, and a certain vibration occurs in the process.

The cover body 51 of the lens cover 50 has a drive projection 55. The drive projection 55 is engaged with the primary rotation gear 27 of the actuator 20 and protrudes from the side surface of the cover body 51. In the present embodiment, only one drive projection 55 is provided, but there may be a plurality of cover protrusions 51 surrounding the cover body 51. The drive projection 55 can be moved away from the rotation guide 30 along the actuator 20 while being caught between the primary rotation gears 27 of the actuator 20.

Further, the drive projection 55 allows the lens cover 50 to be rotated first. The lens cover 50 is rotated while the drive projection 55 moves along the rotation slope 28 of the primary rotation gear 27. The drive slope 56 of the drive projection 55 is rotated by the actuator The lens cover 50 is rotated in a process in which the lens cover 50 is in contact with and slides on the rotation slope 28 of the lens 20. It is preferable that the rotation slope 28 is longer than the driving slope 56 of the drive projection 55 so that the drive projection 55 can be rotated sufficiently along the rotation slope 28. [ The driving inclined surface 56 extends in the inclined direction with respect to the moving direction of the actuator 20 like the rotating inclined surface 28. [

The lens cover (50) has a driven gear (57). The driven gear 57 protrudes in the direction of the rotation guide 30 along the edge of the cover body 51 of the lens cover 50. A second rotation gear 37 and a driven gear 57 are provided on the front surface of the rotation guide 30 and the rear surface of the lens cover 50 opposite to the rotation guide 30, The lens cover 50 is secondarily rotated in the process of being engaged with the second rotary gear 37. [ At this time, if the lens cover 50 is not rotated, the secondary rotation gear 37 and the driven gear 57 will not always rotate at the same position, but the actuator 20 The primary rotation gear 27 rotates the lens cover 50 first so that the driven gear 57 of the lens cover 50 is rotated when the lens cover 50 is retracted. So that it can be engaged with the second rotary gear 37 adjacent to the engaged second rotary gear 37 (see Fig. 10). That is, when the lens cover 50 is firstly rotated, the driven gear 57 of the lens cover 50 is engaged with the second rotation gear 37 adjacent to the engaged second rotation gear 37, It is in a state of being.

Here, the driven gear 57 has a follower slope 58, and a relative rotation slope 59 at the front thereof. The relative rotation tilting 59 is formed at an angle different from that of the follower gear 58 of the driven gear 57. When the relative rotation tilting 59 is detected by the second rotation tilter 39 of the rotation guide 30 The lens cover 50 can be rotated secondarily. Referring to FIG. 10, when the lens cover 50 is retracted, the relative rotation slope 59 first contacts the second rotation slope 39. In this state, the elastic member S contacts the lens cover 50 The lens cover 50 is secondarily rotated by the inclination angle of the inclined surface. Since the rotation guide 30 is in a fixed state as described above, only the lens cover 50 is rotated in the process of engagement of the secondary gear 37 and the driven gear 57.

The elastic member (S) is connected to the lens cover (50). The elastic member S provides an elastic force to the lens cover 50 in the direction of the rotation guide 30 so that when the drive module 10 removes the force pressing the lens cover 50, Is again moved in the direction of the rotation guide (30), and the lens cover (50) is rotated secondarily in the process. The elastic member S may be a compression spring installed in front of the lens cover 50 as shown in FIG. 2 or a tension spring installed at the rear of the lens cover 50 to pull the lens cover 50 .

Next, the process of operating the present invention with reference to the drawings will be described.

4 and 5 show a first step in an initial state. For reference, the lower part of FIG. 4 shows the rotation state of the driving module 10 for the sake of understanding. 5, when the lens cover 50 and the rotation guide 30 are rotated, the driving module 10 does not yet push the actuator 20 toward the lens cover 50 (left side in the figure) The lens cover 50 can not be rotated arbitrarily. At this time, when it is determined that the user can not obtain a clean image because foreign matters are deposited on the lens cover 50, a signal is applied to the driving source to start the operation of the present invention.

When the driving module 10 is rotated in the direction of arrow f1 in Fig. 6, the module body 11 protrudes in the left direction while the driving module 10 is eccentrically rotated. The actuating part 25 of the actuator 20 is pushed by the module body 11 and moved to the left. Of course, in this process, the actuator 20 is moved while the elastic force of the elastic member S is overcome. 6, it can be seen that the guide protrusion 33 is moved to the left to some extent along the guide slit 23. In this case,

At the same time, the drive projection 55 of the lens cover 50 starts to move into the primary rotation gear 27 of the actuator 20, and the actuator 20 is moved between the primary rotation gears 27, So that the lens cover 50 is moved in a straight line. 6, it can be seen that the driving module 10 is rotated by about 90 degrees.

7, the driving module 10 is rotated by about 180 degrees and protruded most to the left, so that the actuator 20 and the lens cover 50 bite therewith are also moved to the left side It is the most moved state. When the actuator 20 moves the lens cover 50 farthest away, the driven gear 57 of the lens cover 50 is completely released from the state of being engaged with the second rotary gear 37 of the rotary guide 30. FIG. 8 shows the state in which the actuator 20 is removed in FIG. 7, and it can be seen that the driven gear 57 completely deviates from the second rotary gear 37. When the driven gear 57 is moved away from the secondary rotary gear 37 as described above, the lens cover 50 can be rotated. In the course of the linear movement of the lens cover 50 along the actuator 20, the driven gear 57 The drive slope 56 of the drive projection 55 slides along the rotation slope 28 of the primary rotation gear 27 so that the lens cover 50 is rotated in the direction of 1 7). At this time, the rotationally inclined face 28 is inclined to the drive inclined face 56 of the drive projection 55 so that the drive projection 55 can be sufficiently rotated along the rotationally inclined face 28, .

When the lens cover 50 is first rotated in this manner, the driven gear 57 of the lens cover 50 is rotated by the second rotation gear 37 adjacent to the second rotation gear 37 engaged in FIG. 5, (The lower secondary gear 37 based on the drawing).

Next, FIG. 9 shows the fourth step, which is the first step of returning. When the driving module 10 rotated to 180 degrees further rotates in the same direction and rotates about 270 degrees, the actuator 20 is retracted in a state in which the lens cover 50 is pushed to the left as far as possible, (S) pushes the lens cover 50 again to the right side (see arrow 2 in Fig. 9).

In this process, the second rotation slope 39 and the relative rotation slope 59 of the lens cover 50 in the second rotation gear 37 of the rotation guide 30 abut each other. Referring to FIG. 10, the relative rotation slope 59 first touches the second rotation slope 39 in the course of the lens cover 50 being returned to its original position. If the lens cover 50 is only rotated linearly without being rotated, the second rotary gear 37 and the driven gear 57 will not rotate at the same position (the same position as in FIG. 5) Since the primary rotary gear 27 rotates the lens cover 50 first when the actuator 20 pushes the lens cover 50 in the third step described above and when the lens cover 50 is returned to its original position, The driven gear 57 of the driven gear 50 is in a state of being able to engage with the secondary gear 37 adjacent to the engaged secondary gear 37. [

11 and 12 show the final step 5, which is a state in which the actuator 20 and the lens cover 50 are completely returned as in the initial state. However, the lens cover 50 is firstly rotated through the above process and then rotated secondarily at the last stage. That is to say, in the state in which the second rotational inclination 39 of the second rotary gear 37 and the relative rotational inclination 59 of the lens cover 50 are in contact with each other, the elastic member S moves the lens cover 50 to the right The lens cover 50 is secondarily rotated in the direction of the arrow ③ by the inclination angle of the second rotation slope 39 and the relative rotation slope 59. [ Since the rotation guide 30 is in the fixed state, only the lens cover 50 is rotated in the process of engagement of the secondary gear 37 and the driven gear 57. [

12, the lens cover 50 is rotated secondarily so that the driven gear 57 of the lens cover 50 is moved to the second position adjacent to the second rotation gear 37 engaged in the initial state, The driving projection 55 of the lens cover 50 is engaged with the first rotary gear 27 adjacent to the first rotary gear 27 of the previously engaged actuator 20, To be engaged in the preliminary state.

In the course of the linear movement and the rotational movement, the foreign matter adhering to the lens cover 50 is removed. Particularly, vibration is generated in the course of engagement and rotation of the gears due to the elastic force of the elastic member (S), so that the foreign matter can be more effectively removed. More specifically, the second rotation slope 39 of the second rotation gear 37 and the relative rotation slope 59 of the driven gear 57, which are engaged with each other in the second rotation, Is formed at an angle different from that of the inclined surface (38) and the inclined surface (58), so that the vibration is generated simultaneously with the second rotation.

Such a series of operations is performed such that the actuator 20, the rotation guide 30 and the lens cover 50 interlock with each other in the course of the rotation of the drive module 10, . Therefore, there is no need to provide a separate driving source for linear motion and rotary motion.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: drive module 11: module body
15: rotation shaft 20: actuator
21: actuator body 23: guide slit
25: operating part 27: primary rotation gear
28: rotation slope 30: rotation guide
31: guide body 33: guide projection
37: Secondary rotary gear 38: Main inclined surface
39: 2nd rotation tilting 50: Lens cover
51: cover body 55: driving projection
56: driving slope 57: driven gear
58: Longitudinal slope 59: Relative rotation slope

Claims (12)

A drive module operated by the power of the drive source,
A lens cover installed on a front surface of the camera lens to protect the camera lens and installed to be rotatable and linearly movable,
An actuator for rectilinearly moving the lens cover while linearly reciprocating along a predetermined path in conjunction with the operation of the driving module and rotating the lens cover by a predetermined angle;
A rotation guide that rotates the lens cover by a predetermined angle in the same direction as the first rotation in a process of being relatively moved with the actuator and engaged with the lens cover,
And an elastic member for moving the lens cover in the direction of the rotation guide while engaging the lens cover with the rotation guide by providing an elastic force to the lens cover in the direction of the rotation guide, And the foreign matter removing device of the camera.
The actuator according to claim 1, wherein the actuator includes a first rotation gear projecting toward the lens cover, and a lens protrusion provided on the lens cover to engage with the first rotation gear, wherein when the actuator moves, Wherein the lens cover is linearly moved by engaging with the vehicle rotary gear and the lens cover is rotated first during the movement of the drive projection along the inclination of the primary rotary gear.
2. The image forming apparatus as claimed in claim 1, wherein a second rotation gear and a driven gear that mesh with each other are provided on a front surface of the rotation guide and a rear surface of the lens cover facing the rotation guide, A foreign substance removing device for a camera rotated secondarily.
4. The image forming apparatus according to any one of claims 1 to 3, wherein when the lens cover is first rotated, the driven gear of the lens cover is in a state of being able to engage with the second rotation gear adjacent to the engaged second rotation gear Wherein when the lens cover is rotated secondarily, the drive projection of the lens cover is in a state of being able to engage with the first rotation gear adjacent to the first rotation gear of the engaged actuator.
2. The image forming apparatus according to claim 1, wherein the actuator is provided with a primary rotation gear, the lens cover is provided with a drive projection engaging with the primary rotation gear, The driving gear is linearly moved in a direction away from the rotation guide to release the state in which the driven gear is engaged with the secondary rotation gear and the drive projection is moved inward along the rotation slope of the primary rotation gear, A foreign matter removing device for the camera which is rotated by a predetermined angle.
7. The lens barrel according to claim 5, wherein the driven gear of the lens cover, which is first rotated by the actuator, is driven by the elastic member to move to the second rotation A foreign object removing device for a camera rotated secondarily by engaging with a gear.
The apparatus according to claim 1, wherein the driving module is provided with a rotation axis eccentric from the center of the driving module, and the driving module linearly moves the actuator while rotating around the rotation axis.
The apparatus of claim 1, wherein the actuator includes a guide slit, and the guide is slidably coupled to the guide slit to linearly move the actuator in a predetermined path.
2. The actuator according to claim 1, wherein the actuator
An actuator body having an internal space opened therein,
An actuating part protruding from one side of the actuator body and connected to the driving module;
And a primary rotation gear which is formed by a plurality of projections continuously extending along a front edge of the actuator body to rotate the lens cover while engaging with driving projections of the lens cover.
10. The apparatus of claim 9, wherein the rotation guide
A guide body accommodated in an internal space of the actuator and having a storage space for accommodating a camera therein,
And a second rotary gear which is continuously projected along a front edge of the guide body to rotate the lens cover while engaging with the driven gear of the lens cover.
4. The apparatus according to claim 3, wherein a second rotation slope is formed at an angle different from that of the second rotation gear at a front portion of the secondary rotation gear, and a relative rotation slope corresponding to the second rotation slope Wherein the rotation guide and the lens cover are relatively rotated in a process of being engaged with the second rotation inclination and the relative rotation inclination by being formed at different angles with respect to the driven gear.
12. The image forming apparatus according to claim 11, wherein the relative rotation of the lens cover rotated by the actuator rotates relative to the second rotation slope of the second rotation gear adjacent to the second rotation rotation of the second rotation gear And the foreign object removing device of the camera positioned correspondingly.

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