KR100586003B1 - Pivoting actuator for automotive outsider mirror - Google Patents

Abstract

The present invention relates to a pivoting actuator for pivoting a vehicle outsider mirror to the front and rear of a vehicle body.

The present invention relates to a first pivot part comprising a base flange and a base shaft, a second pivot part comprising a frame and a power driving part provided in the frame, a coupling drive gear freely rotated on an outer circumferential surface of the base shaft, and a couple. The first cam disk is coupled to and detachable from any one of the upper and lower surfaces of the ring drive gear, and the second cam disk is coupled and detachable to any one of the upper and lower surfaces of the first cam disk. A second cam disk disposed, a spring member disposed axially on the outer circumferential surface of the base shaft, at least one rotation limiting projection provided on one side of the second cam disk, and a rotation limiting projection of the second cam disk. The corresponding frame side includes a stopper provided.

Outsider mirror, pivoting actuator, pivot, base shaft, power disconnect

Description

Pivoting actuator for automotive outsider mirror

1 is a configuration diagram schematically showing the configuration of a pivoting actuator of a general outsider mirror.

2 is a conceptual view schematically showing a pivoting operation state of a general mirror housing.

Figure 3 is an exploded perspective view showing the pivoting actuator of the present invention.

4 is an assembled cross-sectional view showing a pivoting actuator according to a first embodiment of the present invention.

Fig. 5 is a plan view showing a coupling drive gear, first and second cam disks according to the first embodiment of the present invention.

6 is an assembled cross-sectional view showing a power separation structure of a pivoting actuator according to a second embodiment of the present invention.

7 is a plan view showing a coupling drive gear, first and second cam disks according to a second embodiment of the present invention;

8 is a perspective view showing an alternative embodiment of the second cam disk of the present invention.

Figure 9 is a perspective view showing a rotation limiting projection provided on one side of the second cam disk of the present invention and the stopper provided on the frame side.

Figure 10 is a partial side cross-sectional view showing the spline of the keyway and base shaft of the first cam disk of the present invention.

11 is a perspective view showing a gear transmission mechanism of the pivoting actuator of the present invention.

Explanation of symbols on the main parts of the drawings

1: body 2: support

3: mirror housing 10: pivoting actuator

11, 12: first and second pivot 35 coupling drive gear

41: first cam disk 43: second cam disk

The present invention relates to a pivoting actuator of a vehicle outsider mirror, and more particularly to a pivoting actuator for pivoting the outsider mirror to the front and rear of the vehicle body.

In general, the vehicle outsider mirror is a kind of vehicle parts installed on both front sides of the front door of the vehicle body so that the driver can check the traffic conditions of the left and right rear without turning his head when driving.

The outsider mirror has a mirror housing provided with a mirror therein, and an adjusting mechanism connected to the rear surface of the mirror to adjust the mirror in the up, down, left and right directions.

The outsider mirror also has a pivoting actuator capable of pivoting the mirror housing to the front and rear of the vehicle body. Such a pivoting actuator is composed of two actuating parts mounted relatively rotatably with respect to each other, and the pivoting actuator is a power composed of an electric motor and a transmission system for relatively rotating the two actuating parts described above. The form with the drive structure is a recent general trend.

As shown in FIG. 2, during driving or stopping, the mirror housing 3 is pivoted so that the free end of the mirror housing 3 protrudes at a predetermined angle from the side of the vehicle body 1 (A position in FIG. 2). . In a special case, for example, when parking in a narrow space, the free end of the mirror housing 3 comes close to the side of the vehicle body 1 (B position in Fig. 2).

As such, the state in which the mirror housing 3 is pivoted to the rear and close to the side of the vehicle body 1 is called a fold-in position (B position in FIG. 2), and conversely, the mirror housing 3 ) Is pivoted forward and protrudes from the side of the vehicle body 1 is called a fold-out position (A position in FIG. 2), and this fold-out position is normally a normal position. Shall be.

In addition, in consideration of safety aspects, the pivoting actuator is configured to move the mirror housing 3 to the vehicle body 1 to prevent the mirror housing 3 from being damaged when an external force is applied to the mirror housing 3 by an external obstacle. ) To be able to pivot broadly forward (C position in FIG. 2).

As such, the state in which the mirror housing 3 is widely pivoted toward the front of the vehicle body 1 is referred to as a fold-over position (C position in FIG. 2), on the contrary, from the fold-over position to the normal position. The returning pivoting operation is called folding back.

On the other hand, as described above, the pivoting actuator having a power driving method needs to accommodate the manual driving method so that the pivoting operation is performed by the influence of an external force such as a user or an external obstacle.

Such conventional pivoting actuators are disclosed in US Pat. No. 6,130,514, US Pat. No. 5,625,502, WO 03/011642, and the like.

As shown in FIG. 1, a general configuration of such a pivoting actuator includes a first pivot part 11 fixedly mounted on a support part 2 fixed to a side wall of the vehicle body 1, and fixedly mounted on a mirror housing 3. A second pivot 12 is included, the first pivot 11 and the second pivot 12 being aligned relative to each other relative to the axis of rotation 14.

The first pivot portion 11 is composed of a base flange 101 and a base shaft 102, and the second pivot portion 12 is provided in the frame 200 and the frame 200 to the base shaft 102. It consists of a power drive unit (not shown) for transmitting a driving force, the power drive unit (not shown) is composed of an electric motor and a gear drive mechanism. In addition, between the first pivot 11 and the second pivot 12, the base shaft 102 is separated from the above-described power drive (not shown) to accommodate the above-described manual pivoting operation. (11) and the power separation structure (not shown) for the second pivot portion 12 to allow the relative rotation is freely made by manual driving force, and the rotation restriction structure (not shown) for limiting the rotation angle of such manual pivoting operation. Equipped with.

However, the conventional pivoting actuator is applied during the manual pivoting operation by applying the power separating structure and the rotational limiting structure to the mutually rotating parts between the upper surface of the base flange 101 and the lower surface of the frame 200. The mirror housing 3 is configured to protrude upward.

As described above, the conventional pivoting actuator has a risk of being easily damaged by torque generated in the mirror housing 3 due to an unexpected external force as the projection of the mirror housing 3 occurs during the manual pivoting operation. .

In addition, the conventional pivoting actuator is made of a very complex form of the power separation structure and the rotational limiting structure, which requires a lot of components, as well as its operability is very deteriorated and the work process is very cumbersome and manufactured. There was a disadvantage that the unit price will rise.

The present invention has been made in view of the above, by applying a power separation structure and a rotational limitation structure in the frame, to prevent the mirror housing from protruding upward during the manual pivoting operation of the mirror housing to the mirror housing by external force Its main purpose is to provide a pivoting actuator of a vehicle outsider mirror that can prevent breakage.

In addition, the present invention is a very simple and compact configuration requires less components, the work process is very simple, the manufacturing cost is reduced, and the operability of the vehicle outsider mirror significantly improved its operability Another object is to provide a pivoting actuator.

The present invention for achieving the above object, the first fixedly installed between the support portion fixed to the vehicle body side wall and the mirror housing provided to be rotatable in the forward and rearward direction of the vehicle body on the support portion and the first rotationally aligned And a pivot actuator of a vehicle outsider mirror having a second pivot portion,

The first pivot is composed of a base flange and a base shaft, and a plurality of splines are disposed on the outer circumferential surface of the base shaft at predetermined intervals;

The second pivot consists of a frame and a power drive part provided in the frame, the power drive part including an electric motor and a gear drive mechanism for transmitting a driving force of the electric motor;

A coupling drive gear is rotatably installed on the outer circumferential surface of the base shaft, and the coupling drive gear is installed to interlock with a gear transmission mechanism of the power drive unit;

A first cam disk is disposed to be coupled to and detached from any one of an upper surface and a lower surface of the coupling drive gear, and the first cam disk has a plurality of key grooves fitted into respective splines of the base shaft on its inner diameter surface. To;

A second cam disk is disposed on one of the upper and lower surfaces of the first cam disk so as to be coupled and detachable, and the second cam disk is rotatably installed on an outer circumferential surface of the base shaft;

A spring member is disposed in the axial direction on the outer circumferential surface of the base shaft, the spring member applying an elastic force to keep the coupling drive gear, the first and second cam disks coupled to each other;

At least one rotational limiting protrusion protrudes outwardly from one side of the second cam disk, and a stopper is provided at a frame side corresponding to the rotational limiting projection of the second cam disk.

Preferably, each spline of the base shaft and each keyway of the first cam disk are tapered in the longitudinal direction of the base shaft.

Preferably, the gear transmission mechanism is a pair of integrally provided on the first shaft provided on the output shaft of the electric motor, the first worm gear meshing with the first worm, and the coaxial line of the left and right sides of the first worm gear A second worm, a pair of second worm gears meshing with each second worm, and a pair of spur gears integrally provided on a lower surface of each second worm gear.

Preferably, the upper surface of the coupling drive gear and the lower surface of the first cam disk are provided with a plurality of locking grooves and the locking projections to correspond to each other, the lower surface of the second cam disk and the upper surface of the first cam disk a plurality of By providing the locking groove and the engaging projection of the mutually corresponding, the first cam disk is coupled and detachably contact the upper surface of the coupling drive gear, the second cam disk is coupled and detachable to the upper surface of the first cam disk. Contact with each other, the locking grooves and the locking projections are characterized in that each end wall is inclined at a predetermined angle.

Preferably, the lower surface of the coupling drive gear and the upper surface of the first cam disk are provided with a plurality of catching grooves and locking projections, and the upper surface of the second cam disk and the lower surface of the first cam disk are a plurality of. By providing the locking groove and the engaging projection of the corresponding, the first cam disk is coupled and detachably contact the lower surface of the coupling drive gear, the second cam disk is coupled and detachable to the lower surface of the first cam disk. Contact with each other, the locking grooves and the locking projections are characterized in that each end wall is inclined at a predetermined angle.

Preferably, the number of the corresponding engaging grooves and the engaging protrusions of the coupling drive gear and the first cam disk is greater than the number of the corresponding engaging grooves and the engaging protrusions of the first and second cam disks.

Preferably, the heights of the locking grooves and the locking protrusions corresponding to the first and second cam disks are greater than the heights of the coupling driving gears and the locking grooves and the locking protrusions corresponding to the first cam disk.

Preferably, the pair of engaging grooves and the engaging protrusions are symmetrically provided to face each other so as to engage and detachably contact the first cam disk of the second cam disk. A locking projection engaged with the locking groove of the 2 cam disk and a locking groove engaging with the locking protrusion of the second cam disk are provided symmetrically to face each other.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In general, as shown in FIG. 1, the pivoting actuator 10 includes a first pivot 11 fixed on a support 2 fixed to a side wall of the vehicle body 1 and a mirror housing 3. And a second pivot portion 12 fixedly installed, the first pivot portion 11 and the second pivot portion 12 being aligned with respect to each other relative to the rotation axis 14 so as to be rotatable relative to each other.

On the other hand, the pivoting actuator 10 of the present invention is not limited to the configuration shown and described in FIG. 1, and the first pivot 11 is fixed to the mirror housing 3 and the second pivot 12 The reverse configuration may also be possible, such as) is fixed to the support part 2 on the vehicle body 1 side.

The pivoting actuator 10 of the present invention includes a support part 2 fixed to a side wall of the vehicle body 1 and a mirror housing 3 provided on the support part 2 so as to be rotatable in the front and rear directions of the vehicle body 1. And first and second pivots 11 and 12, which are selectively installed therebetween and are pivotally aligned.

As shown in FIG. 3, the first pivot 11 includes an empty cylinder-shaped base flange 101 and a base shaft 102, and a lower surface of the base flange 101 is a support part 2. Or fixedly coupled to the mirror housing 3 by a coupling means such as a fastener, the base shaft 102 is a plurality of splines (102a) are arranged on the outer peripheral surface spaced apart in the circumferential direction, each spline (102a) is The key grooves 42 of the first cam disk 41 to be described later are individually fitted.

The second pivot part 12 is composed of a frame 200 selectively fixed to the support part 2 or the mirror housing 3 of the vehicle body 1 and the power driving part 20 provided in the frame 200.

As shown in FIG. 3, the frame 200 includes an upper frame 201, a center frame 202, and a lower frame 203, and the base shaft 102 is formed on the lower surface of the lower frame 203. It has an annular flange 204 having an annular opening 204a through which the upper and center frames 201 and 202 are coupled onto the lower frame 203.

Between the upper and the center frame 201, 202 is a power drive part 20 for pivoting the mirror housing 3 by a power drive method, the power drive part 20 is an electric motor 25 and the It consists of a gear transmission mechanism 26 for transmitting the driving force of the electric motor 25 to the base shaft (102).

Preferably, as shown in FIG. 11, the gear transmission mechanism 26 in the present embodiment includes a first shock 26a, a first worm 26a and a first worm 26a provided on the output shaft of the electric motor 25. As shown in FIG. As long as the first worm gear 26b to be engaged, the pair of second worms 26c provided integrally on the left and right coaxial lines of the first worm gear 26b, and the second worm 26c are engaged. It consists of a pair of 2nd worm gear 26d and a pair of spur gears 26e integrally provided in the lower surface of each 2nd worm gear 26d.

The gear transmission mechanism 26 according to the present embodiment configured as described above adopts a pair of second worm gears 26d having inclined teeth at the final end thereof so that vibration and noise are low, wear is uniform, and smooth power is achieved. Although it can transmit, when the second worm gear 26d having such an inclined tooth is directly engaged with the coupling drive gear 35 described later, the coupling drive gear 35 has a thrust in its axial direction. Since there is a disadvantage in that a large amount of power loss occurs because the deviation occurs up and down, the spur gear 26e having a straight tooth shape is integrally formed at each lower portion of the second worm gears 26d. By directly coupling the coupling drive gear 35 to be described later, it is possible to minimize the power loss by preventing the occurrence of a trust in the axial direction of the coupling drive gear 35.

 The coupling drive gear 35 is elastically supported by the spring member 33, is rotatably installed on the outer circumferential surface of the base shaft 102, and is disposed at the central portion in the longitudinal direction of the base shaft 102. The coupling drive gear 35 is meshed with the spur gear 26e of the gear transmission mechanism 26 whose teeth are provided on the outer circumferential surface thereof.

The spring member 33 is installed to apply an elastic force in the axial direction of the base shaft 102, and is disposed on the upper or lower side of the coupling drive gear 35 described above.

Meanwhile, the pivoting actuator of the present invention releases the coupling between the coupling drive gear 35 and the base shaft 102 interlocked with the power drive unit 20 to accommodate the manual pivoting operation of the mirror housing 3. Coupling drive gear 35 provided in the internal space of the frame 200, without applying a power separation structure to the mutual rotational contact between the upper surface of the base flange 101 and the lower surface of the frame 200 By applying close to, the mirror housing 3 is characterized in that it can be prevented from protruding upward during its manual pivoting operation.

As described above, in the first embodiment of the power separating structure of the present invention, as shown in FIGS. 3 and 4, the first cam disk 41 is disposed on the upper surface of the coupling drive gear 35. The second cam disk 43 is disposed on the upper surface of the first cam disk 41, and thus may be applied to a small vehicle such as a passenger car.

As shown in FIG. 5 (a), the coupling drive gear 35 includes a plurality of locking grooves 35a, and end walls of the locking grooves 35a are inclined at a predetermined angle.

As shown in FIG. 5 (b), the lower surface of the first cam disk 41 includes a plurality of locking protrusions 41a engaged with the locking grooves 35a of the coupling drive gear 35. Each of the locking protrusions 41a is inclined so that its end wall corresponds to the above-mentioned end wall of the locking groove 35a, and the upper surface of the first cam disk 41 includes a plurality of locking protrusions 41b. , The end wall of each locking projection 41b is inclined at a predetermined angle.

In addition, the inner diameter surface of the first cam disk 41 is formed with a plurality of key grooves 42 which are fitted to the plurality of splines 102a provided on the outer circumferential surface of the base shaft 102 described above. By the fitting structure of the spline 102a of the base shaft 102 and the key groove 42 of the first cam disk 41, the first cam disk 41 is fitted on the outer circumferential surface of the base shaft 102. And configured to interlock with the base shaft 102.

As shown in FIG. 5C, the second cam disk 43 is rotatably installed on the outer circumferential surface of the base shaft 102, and is coupled to and detachable from the upper surface of the first cam disk 41. In contact with the lower surface, a plurality of locking grooves 43a are engaged with the locking projections 41b provided on the upper surface of the first cam disk 41, and the short walls of the respective locking grooves 43a are provided. Is inclined to correspond to the end wall of the above-mentioned locking projection 41b.

6 is a view showing a second embodiment of the power separation structure of the present invention.

As shown, the power separation structure of the present invention according to the second embodiment is the first cam disk 41 is disposed on the upper surface of the coupling drive gear 35, the upper surface of the first cam disk 41 The second cam disk 43 is arranged in a structure, it may be applied to a large vehicle, such as a truck.

As shown in FIG. 7A, a plurality of locking grooves 35b are provided on the lower surface of the coupling drive gear 35, and end walls of each locking groove 35b are inclined at a predetermined angle.

As shown in FIG. 7B, the upper surface of the first cam disk 41 includes a plurality of locking protrusions 41c engaged with the locking grooves 35b of the coupling drive gear 35 described above. Each of the locking protrusions 41c is inclined so that its end wall corresponds to the above-mentioned end wall of the locking groove 35b, and the lower surface of the first cam disk 41 includes a plurality of locking protrusions 41d. , The end walls of the engaging grooves 41b are inclined at a predetermined angle. In addition, the inner diameter surface of the first cam disk 41 is formed with a plurality of key grooves 42 which are fitted to the plurality of splines 102a provided on the outer circumferential surface of the base shaft 102 described above.

As such, the first cam disk 41 is formed on the outer circumferential surface of the base shaft 102 by the fitting structure of the spline 102a of the base shaft 102 and the key groove 42 of the first cam disk 41. The fitting is configured to interlock with the base shaft 102.

The second cam disk 43 is rotatably installed on the outer circumferential surface of the base shaft 102, and as shown in FIG. 7C, the upper surface of the second cam disk 43 is the lower surface of the first cam disk 41 described above. It is provided with a plurality of engaging grooves (43c) engaging to the engaging projection (41d) provided in, the end wall of each of the engaging groove (43c) is inclined to correspond to the end wall of the engaging groove (41d) described above.

Meanwhile, in the second cam disk 43 according to the first and second embodiments described above, at least one rotation limiting protrusion 43b is projected outward on the outer circumferential surface thereof, as shown in FIG. 9. A stopper 45 for limiting the rotation limiting projection 43b of the cam disk 43 is provided on the side of the frame 200 (center frame 202 in FIG. 11). The rotation angle of the fold-in / fold-out range of the pivoting actuator of the present invention is limited by a predetermined angle by the rotation limiting projection 43b of the second cam disk 43 and the stopper 45 of the frame 200. do.

On the other hand, the configuration of the plurality of engaging projections and the engaging groove for achieving the structure that can be coupled and detached of the first cam disk, the coupling drive gear and the second cam disk (41, 35, 43) described above is Without being limited, modifications to other various embodiments will be possible.

The operating relationship of the power separating structure of the present invention according to the first and second embodiments as described above will be described below.

First, when no special external force is generated in the mirror housing 3 (in the pivoting operation mode of the mirror housing 3 by the power driving method), the coupling drive gear 35, the first and second cams The discs 41 and 43 are held in engagement with each other by the elastic force of the spring member 33 described above, and thus the coupling drive gear 35 connected to the gear transmission mechanism 26 of the power drive unit 20. Is coupled to the base shaft 102 via the first cam disk 41 is maintained. Accordingly, the driving force of the power drive unit 20 is transmitted to the base shaft 102 through the coupling drive gear 35, so that the mirror housing 3 can be easily pivoted by the power drive.

Next, when an external force is applied to the mirror housing 3 (in the case of the manual pivoting operation mode of the mirror housing 3), the first cam disk 41 and the coupling drive gear 35 are in contact with each other. Pivoting the mirror housing 3 to the fold-in or fold-out position (see FIG. 2) in a state of being engaged by a plurality of locking projections 41a and 41c and locking grooves 35a and 35b provided in the housing. When an external force to be applied is applied, the first cam disk 41 overcomes the elastic force of the spring member 33 so that the locking projections 41a and 41c of the first cam disk 41 and the coupling drive gear 35 are removed. As the locking grooves 35a and 35b are slidably moved along the inclined end walls in contact with each other, a first separation action occurs in which the first cam disk 41 and the coupling drive gear 35 are released. .

By the first separation operation, the base shaft 102 and the first cam disk 41 are separated from the power transmission from the power drive unit 20, and the coupling drive gear 35 connected to the power drive unit 20. ) Is freely rotated with respect to the base shaft 102, and in conjunction with this, the power drive unit 20 is in an idling state, so that the manual pivoting operation (fold-in / fold-out) of the mirror housing 3 is performed. This is done easily.

In this way, during the manual pivoting operation of the fold-in / fold-out, if the first separation operation between the first cam disk 41 and the coupling drive gear 35 occurs, the second cam disk 43 Is maintained in the state coupled to the first cam disk 41, the rotation limiting projection 43b protruding on one side of the second cam disk 43 to the stopper 45 provided on the frame 200 side As the rotation is limited by this, the folding angle of the fold-in / fold-out pivoting operation is limited.

Next, when the fold-over pivoting operation of the mirror housing 3 is performed by the external force relatively larger than the above-described fold-in / fold-out pivoting operation, the first cam disk ( 41) and a plurality of locking grooves 43a provided on the surfaces of the second cam disk 43 and the first cam disk 41 that are in contact with each other, as well as the first separation operation between the coupling drive gear 35. , 43c) and the second car that is engaged with the second cam disk 43 and the first cam disk 41 as the locking projections 41b and 41d slide along each of the inclined short walls. Separation will occur.

By the second separation action of the first cam and the second cam disk 41, 43, the base shaft 102 and the first cam disk 41 is completely separated from the second cam disk 43 , The second cam disk 43 is free to rotate relative to the base shaft 102, the first cam disk 41 and the base shaft 102 is the rotation limit projection 43b of the second cam disk 43 ) And the stopper 45 is not subjected to any interference of the rotation limiting structure, so that the fold-over / fold-back pivoting operation is easily performed.

On the other hand, the fold-over / folding back pivoting operation described above is the angle of rotation by a separate rotation limit structure provided on the surface in contact with each other between the lower surface of the frame 200 and the support portion 2 of the vehicle body (1) Is limited, and such a configuration is well known to those skilled in the art.

Preferably, the number of the plurality of locking projections 41a and 41c and the locking grooves 35a and 35b respectively provided on the surfaces of the first cam disk 41 and the coupling driving gear 35 that are in contact with each other may be the first. The number of the plurality of locking projections 41b and 41d and the locking grooves 43a and 43c respectively provided on the surfaces in contact with each other of the cam disk 41 and the second cam disk 43 is formed. This is because when a constant external force acts on the mirror housing 3, the surface pressure between the first cam disk 41 and the coupling drive gear 35 is reduced between the second cam disk 43 and the first cam disk 41. By acting greater than the surface pressure of the separation, the separation between the first cam disk 41 and the coupling drive gear 35 occurs earlier than the separation between the first cam disk 41 and the second cam disk 42. To do that. That is, when a specific external force acts on the mirror housing 3, a separation action takes place primarily between the first cam disk 41 and the coupling drive gear 35, and then the first cam disk 41 and the first cam drive are made. Secondary separation between the two cam disk 43 is configured to occur sequentially.

In addition, the height h2 of the plurality of locking grooves 43a and 43c and the locking protrusions 41b and 41d corresponding to each other between the second cam disk 43 and the first cam disk 41 is equal to the first cam disk ( 41 and the coupling drive gear 35 may be formed to be larger than the height (h1) of the plurality of engaging projections (41a, 41c) and the engaging groove (35a, 35b) corresponding to each other. This is a configuration for preventing the secondary pivoting action between the second cam disk 43 and the first cam disk 41 by a relatively small external force, so that manual pivoting operation of the fold-over takes place too easily.

In addition, as shown in FIG. 8, a pair of locking grooves 43e and locking protrusions 43f are provided on a surface in which the second cam disk 43 is in contact with and detachably contacted with the first cam disk 41. It is provided symmetrically to face each other, and corresponding to the contact surface of the first cam disk 41, the engaging projection (41e) and the second cam disk (engaged in the engaging groove 43e of the second cam disk 43) A locking groove 41f engaged with the locking protrusion 43f of the 43 is provided symmetrically to face each other.

With this configuration, the locking projection 41e of the first cam disk 41 is engaged with the locking groove 43e of the second cam disk 43, and the locking projection 43f of the second cam disk 43 is engaged. When the external force is applied for the manual pivoting operation of the fold-over as described above in the state of being engaged with the engaging groove 41f of the first cam disk 41, the locking projection of the first cam disk 41 and The locking grooves 41e and 43f of the locking grooves 41e and 41f and the second cam disk 43 are slid to each other to move the first cam disk 41 and the second cam disk 43 as described above. Are separated to perform the fold-over pivoting operation.

During this fold-over pivoting operation, if the engaging projection 41e of the first cam disk 41 and the engaging projection 43f of the second cam disk 43 come into contact with each other, no further pivoting operation is performed. Therefore, there is a feature that the rotation angle at the time of the fold-over pivoting operation is limited to a predetermined range.

In addition, the splines 102a of the base shaft 102 and the key grooves 42 of the first cam disk 41 which are mutually fitted are tapered at a predetermined angle θ upward or downward, as shown in FIG. 10. It would be desirable to be in the form. Due to the structure in which the spline 102a and the key groove 42 are inclined at a predetermined angle, the mobility of the first cam disk 41 is improved to drive the first cam disk 41 and the second cam disk 43 and the coupling. There is a feature that can be more easily coupled and separated from the gear (35).

As shown in FIG. 3, the stop washer 44 has a plurality of engaging projections 44b projecting inward in the radial direction thereof, and the engaging projections 44b are fitted to the outer circumferential surface of the base shaft 102. By doing so, the spring member 33 is configured to prevent separation.

In addition, the upper and lower sides of the annular flange portion 204 of the lower frame 203, as shown in Figure 3, a pair of thrust bearing (54, thrust bearing) is provided separately, the lower frame 203 The axial load of the coupling drive gear 35 and the base flange 101 which are in surface contact with each of the upper and lower surfaces of the annular flange portion 204 may be more smoothly pivoted.

The present invention as described above has the advantage of preventing the mirror housing from being damaged by external force by preventing the mirror housing from protruding upward during the manual pivoting operation of the mirror housing by applying the power separation structure and the rotational limitation structure in the frame. have.

In addition, according to the present invention, since the components required by the very simple and compact configuration require less work, the work process is very simple, the manufacturing cost is reduced, and the operability is greatly improved.

 In the above, the present invention has been illustrated and described with respect to certain preferred embodiments. However, the present invention is not limited only to the above-described embodiments, and those skilled in the art may vary without departing from the spirit of the technical idea of the present invention described in the claims below. It may be changed.

Claims (8)

Pivot of the vehicle outsider mirror consisting of a first and a second pivot portion which is selectively installed between the support fixed to the side wall of the vehicle body and the mirror housing provided to be rotatable in the forward and rearward direction of the vehicle body on the support. In the actuator, The first pivot part includes a base flange and a base shaft, and a plurality of splines are disposed on the outer circumferential surface of the base shaft at predetermined intervals; The second pivot portion comprises a frame and a power driving portion provided in the frame, the power driving portion including an electric motor and a gear transmission mechanism for transmitting a driving force of the electric motor; A coupling drive gear is rotatably installed on an outer circumferential surface of the base shaft, and the coupling drive gear is installed to interlock with a gear transmission mechanism of a power driving unit; A first cam disk is disposed to be coupled to and detached from any one of an upper surface and a lower surface of the coupling drive gear, and the first cam disk has a plurality of key grooves fitted to respective splines of the base shaft on its inner diameter surface. Equipped; A second cam disk is coupled to and detachably disposed on any one of an upper surface and a lower surface of the first cam disk, and the second cam disk is rotatably installed on an outer circumferential surface of the base shaft; A spring member is disposed axially on an outer circumferential surface of the base shaft, the spring member applying an elastic force to maintain a coupling drive gear, the first and second cam disks coupled to each other; At least one pivoting limit projection protrudes outwardly on one side of the second cam disk, and a stopper is provided on the frame side corresponding to the pivoting limit projection of the second cam disk. . The method of claim 1, Each spline of the base shaft and each key groove of the first cam disk is tapered actuator of the vehicle exterior mirror, characterized in that the tapered in the longitudinal direction of the base shaft. The method according to claim 1 or 2, The gear transmission mechanism A first fan provided on the output shaft of the electric motor, A first worm gear meshing with the first worm, A pair of second worms integrally provided on the coaxial line of both the left and right sides of the first worm gear; A pair of second worm gears meshing with the second worms, And a pair of spur gears integrally provided on one side of each of the second worm gears. The method of claim 3, A plurality of engaging grooves and engaging projections are provided on the upper surface of the coupling drive gear and the lower surface of the first cam disk to correspond to each other, and the plurality of engaging grooves are provided on the lower surface of the second cam disk and the upper surface of the first cam disk. And engaging projections corresponding to each other, the first cam disk is coupled and detachably contacted with the upper surface of the coupling drive gear, the second cam disk is coupled and detachably contacted with the upper surface of the first cam disk. And each of the engaging grooves and the engaging protrusions are pivoting actuators of the outsider mirror for a vehicle, wherein each end wall is inclined at a predetermined angle. The method of claim 3, A plurality of engaging grooves and engaging projections are provided on the lower surface of the coupling drive gear and the upper surface of the first cam disk to correspond to each other, and the plurality of engaging grooves are provided on the upper surface of the second cam disk and the lower surface of the first cam disk. And engaging projections corresponding to each other, such that the first cam disk is coupled and detachably contacted with the lower surface of the coupling drive gear, and the second cam disk is coupled and detachably contacted with the lower surface of the first cam disk. And each of the engaging grooves and the engaging protrusions are pivoting actuators of the outsider mirror for a vehicle, wherein each end wall is inclined at a predetermined angle. The method of claim 5, Out of the vehicle, characterized in that the number of the engaging groove and the locking projection corresponding to each other of the coupling drive gear and the first cam disk is greater than the number of the corresponding locking groove and the locking projection of the first and second cam disk. Pivoting actuator on the side mirror. The method of claim 5, The height of the locking groove and the locking protrusion corresponding to each other of the first and second cam disks is greater than the height of the locking groove and the locking protrusion corresponding to the coupling drive gear and the first cam disk. Pivoting actuator on the side mirror. The method according to claim 6 or 7, The pair of engaging grooves and the engaging protrusions are symmetrically provided to face each other to engage and detachably contact the first cam disk of the second cam disk, and correspondingly, the second cam disk is provided on the contact surface of the first cam disk. A locking actuator of a vehicle outsider mirror, characterized in that the locking projections engaged with the locking grooves of the second cam disk are symmetrically provided to face each other.

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