KR20160111669A - Structure of outside mirror having 2 degree of freedom - Google Patents

Abstract

The present invention relates to an outside mirror structure of a vehicle and, more specifically, to a two-degree-of-freedom outside mirror structure including: a main shaft rotated by being coupled to a second gear engaged with a first gear rotated by a driving motor; a third gear selectively coupled to one side of the main shaft and rotating with the main shaft; and a fifth gear selectively engaged with a fourth gear coupled to the other end of the main shaft and coupled to a vehicle body. The outside mirror coupled to the third gear rotates around a rotary shaft when the main shaft and the third gear are coupled while the fourth gear and the fifth gear are spaced away from each other. When the main shaft and the third gear are not coupled any longer while the fourth gear and the fifth gear are engaged, the outside mirror rotates around the rotary shaft of the fifth gear. The two-degree-of-freedom outside mirror structure enables a driver to drive a vehicle in a narrow space without folding the outside mirror.

Description

[0001] STRUCTURE OF OUTSIDE MIRROR HAVING 2 DEGREE OF FREEDOM [0002]

The present invention relates to an outboard mirror structure of a vehicle, and more particularly, to an outboard mirror structure of a vehicle that rotates an outboard mirror on an x-axis (main shaft rotation axis) when a fourth gear and a fifth gear are separated, And a two-degree-of-freedom out-side mirror structure capable of rotating an out-side mirror by a z-axis (fifth gear rotation axis).

The outside mirror of the vehicle refers to a mirror mounted on the left and right doors so that the driver can look at the left and right sides of the vehicle during driving, and is also referred to as a door mirror.

In Korea with the driver's seat on the left side, the left side of the outside mirror is made up of a flat mirror and the right side is made up of a convex mirror. The reason why the right side is a convex mirror is to reduce the invisible square.

These out-side mirrors are designed to make it easier to determine the rear position of the vehicle by adjusting the angle of reflection to the upper, lower, left, or right side. In the past, the angle of the hand was adjusted by hand, but nowadays, it is usually controlled by the electric button, You can fold inward to avoid contact with the vehicle from the pole or from the opposite side.

Generally, the motorized folding structure of the outside mirror is folded or unfolded by tilting the outside mirror about an axis of rotation with an inclined folding method.

The outside mirror operated in the inclined folding manner is composed of a driving motor, a plurality of gears rotated by the driving motor, and a shaft rotated by the gear, and the rotation of the shaft folds or unfolds the outside mirror .

However, the conventional outside mirror has only a motion to fold or unfold on the basis of one rotation axis, thereby causing a problem that the lateral visibility of the driver is significantly reduced.

That is, when the driver is traveling in a narrow space, if the outside mirror is folded in order to avoid contact with surrounding obstacles or vehicles coming from the opposite side, the driver must travel with the left and right field of view completely restricted There is a problem.

SUMMARY OF THE INVENTION The present invention is conceived to solve the problems of the prior art described above, and it is an object of the present invention to provide an outboard mirror which can be rotated about two rotation shafts so that even when a driver runs in a narrow space, 2-DOF out-side mirror structure.

The present invention also provides a two-degree-of-freedom outboard mirror structure in which the productivity of the vehicle is improved without increasing the production cost and the work flow of the vehicle, There is another purpose in providing.

The technical objects to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical subjects which are not mentioned can be clearly understood by those skilled in the art from the description of the present invention .

In order to achieve the above object, according to the present invention, there is provided an outboard mirror structure which is rotatably mounted on both right and left sides of a vehicle. The outboard mirror structure is coupled to a second gear engaged with a first gear rotated by a drive motor, Main shaft; A third gear selectively coupled to one side of the main shaft and rotated together with the main shaft; And a fifth gear selectively engaged with a fourth gear coupled to the other end of the main shaft and coupled to the vehicle body; Wherein when the main shaft and the third gear are engaged and the fourth and fifth gears are spaced apart from each other, the outside mirror coupled to the third gear is rotated with respect to the rotational shaft of the main shaft, And the fourth gear is engaged with the fifth gear, the outboard mirror is rotated with respect to the rotation axis of the fifth gear.

The two-degree-of-freedom outboard mirror structure according to the embodiment of the present invention is formed on the outer circumferential surface of the main shaft, and the main shaft is linearly moved in the fifth gear direction or in the direction opposite to the fifth gear A thread to be moved; .

In addition, a two-degree-of-freedom outboard mirror structure according to an embodiment of the present invention is disposed between the main shaft and the third gear, and when the fourth gear and the fifth gear are disengaged, the main shaft and the third gear are engaged A connecting portion for separating the main shaft and the third gear when the fourth gear and the fifth gear are engaged with each other; .

In addition, in the two-degree-of-freedom outboard mirror structure according to the embodiment of the present invention, the main shaft includes a first shaft having the second gear and the third gear coupled thereto and hollows formed therein; And a second shaft coupled to the fourth gear and inserted into the hollow of the first shaft to engage the first shaft; .

Furthermore, the two-degree-of-freedom out-side mirror structure according to the embodiment of the present invention includes: an elastic member inserted in the hollow of the first shaft and disposed between the first shaft and the second shaft; .

The present invention having the above-described configuration has the effect that when the driver runs in a narrow space, the outside mirror is rotated with respect to the rotational axis of the fifth gear so that the outside mirror can be set up vertically without being grounded .

That is, since the outside mirror can be rotated with reference to the rotation axis of the fifth gear as well as with the rotation of the main shaft rotation axis as in the prior art, it is possible to freely perform two degrees of freedom motion according to the driver's choice .

Further, in the present invention, the main shaft is composed of the first shaft and the second shaft, and an elastic member is provided therebetween so that the main shaft is engaged with the fifth gear, .

Further, the present invention can realize the degree of freedom in two rotation shafts by only changing the main shaft and the gear having a relatively simple structure, so that the productivity of the vehicle is improved without increasing the production cost and the work flow of the vehicle significantly.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 schematically illustrates the overall configuration of a two-degree-of-freedom outboard mirror structure according to one embodiment of the present invention; FIG.
Figure 2 schematically illustrates one embodiment of a two degree of freedom outboard mirror structure according to one embodiment of the present invention;
3 is a cross-sectional view illustrating a configuration of a main shaft according to an embodiment of the present invention.
4 is a view showing a state in which an outside mirror is folded according to an embodiment of the present invention;
5 is a view showing a state in which the outside mirror is completely opened according to an embodiment of the present invention;
6 is a view showing a state in which an outside mirror is set up according to an embodiment of the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings in order that the present invention can be easily carried out by those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

In addition, terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary meanings, and the inventor should properly define the concept of the term to describe its invention in the best way. It should be construed as meaning and concept consistent with the technical idea of the present invention.

FIG. 1 is a view schematically showing the overall configuration of a two-degree-of-freedom out-side mirror structure according to an embodiment of the present invention. FIG. 2 is a cross- Fig.

As shown, the two-degree-of-freedom outboard mirror structure according to one embodiment of the present invention is coupled to a second gear 20 engaged with a first gear 10 rotated by a drive motor 12, A third gear 30 selectively coupled to one side of the main shaft 60 and rotated together with the main shaft 60 and a fourth gear 40 coupled to the other end of the main shaft 60, And a fifth gear (50) selectively engaged with the vehicle body.

The fifth gear 50 includes a first body 100, a driving motor 12, a first gear 10, a second gear 20, and a fourth gear 40 And the third gear 30 is divided into a third body 300 and a second body 300. [

A fifth gear 50 is fixedly coupled to a portion of the first body 100 corresponding to a vehicle body and the second body 200 and the third body 300 are coupled to an outer mirror, And is rotated about the rotation axis (x-axis) or about the fifth gear rotation axis (z-axis).

The first body 100 and the second body 200 are connected by a fifth gear 50 capable of rotating in the z-axis direction, and the second body 200 and the third body 300 are connected to each other by only x- The third body 300 does not move due to the reaction force between the first body 100 and the second body 200 and the second body 200 and third The first body 100 is not affected by the reaction force between the bodies 300. [

That is, the second body 200 and the third body 300 themselves are rotated in the x-axis to fold or unfold the outside mirror, and are rotated in the z-axis as a whole by the fifth gear 50, It is to be built.

Specifically, when the driving motor 12 rotates in the + x direction, the first gear 10 connected to the driving motor rotates in the + x direction at the same angular velocity as the angular velocity of the driving motor 12. [ The second gear 20 meshing with the first gear 10 rotates in the -x direction and the main shaft 60 coupled to the second gear 20 also rotates in the -x direction.

At this time, a thread 60a is formed on the outer peripheral surface of the main shaft 60 so that the main shaft 60 can be linearly moved in the fifth gear direction (-x direction) or in the opposite direction (+ x direction) .

That is, as the second gear 20 rotates in the -x direction, the main shaft 60 and the fourth gear 40 rotate in the -x direction and linearly move in the -x direction.

The third gear 30 connected to the main shaft 60 by the rotation of the main shaft 60 in the -x direction is also rotated in the -x direction and rotated in the -x direction of the third body 300 engaged with the third gear 30, The side mirrors are unfolded.

At this time, the main shaft 60 and the third gear 30 are engaged between the main shaft 60 and the third gear 30 when the fourth gear 40 and the fifth gear 50 are disengaged And a connecting portion 32 for separating the main shaft 60 and the third gear 30 when the fourth gear 40 and the fifth gear 50 are engaged with each other.

The connection portion 32 is implemented by a belt pulley / gear / coupling or the like and a key used for preventing rotation slippage between the shaft and the like, and the straight movement distance of the main shaft 60 in the -x direction is a connecting portion 32 and the third gear 30, the rotation of the third body 300 is stopped.

When the main shaft 60 continuously moves in the -x direction and is moved by the minimum meshing distance between the fourth gear 40 and the fifth gear 50, the fourth gear 40 and the fifth gear 50 The second body 200 rotates in the + z direction.

The fourth gear 40 is generally implemented as a pinion gear, and the fifth gear 50 is embodied as a ring gear meshing with the fourth gear.

3 is a cross-sectional view illustrating a configuration of a main shaft according to an embodiment of the present invention.

3, the main shaft 60 includes a first shaft 62 and a fourth gear 40, which are coupled to the second gear 20 and the third gear 30 and have hollows therein, And a second shaft 64 inserted into the hollow of the first shaft 62 and connected to the first shaft.

At this time, an elastic member 66 is inserted into the hollow of the first shaft 62, and the elastic member 66 is inserted between the first shaft 62 and the second shaft 64, And acts to impart an elastic force to the shaft.

The elastic member 66 absorbs an additional amount of movement of the main shaft while protecting the gears from being misaligned between the gears when the main shaft 60 is moved further forward than the designed value due to the additional rotation of the drive motor 12 do.

The operation of the two-degree-of-freedom out-side mirror structure according to one embodiment of the present invention will be described below.

FIG. 4 is a view showing a state in which the outside mirror is folded according to an embodiment of the present invention, and FIG. 5 is a view showing a state in which the outside mirror is completely opened according to an embodiment of the present invention And FIG. 6 is a view showing a state in which an outside mirror is raised according to an embodiment of the present invention.

4B, the main shaft 60 and the third gear 30 are connected by a connecting portion 32 when the outside mirror 400 of the vehicle is folded, and the fourth gear 40 And the fifth gear 50 is kept spaced apart.

When the driver operates the operation button to unfold the outside mirror 400, the drive motor 12 rotates the first gear 10 and the second gear 20, The third gear 30 rotates while the outboard mirror is unfolded.

At this time, a thread 60a is formed in the main shaft 60 so that the main shaft is linearly moved at the same time as the main shaft 60 is rotated. The connection between the main shaft 60 and the third gear 30 is gradually released, 40 and the fifth gear 50 gradually approach each other.

When the outboard mirror 400 of the vehicle is fully opened as shown in FIG. 5B, the connection between the main shaft 60 and the third gear 30 is released so that the outside mirror 400 is no longer rotated , And the fourth gear 40 and the fifth gear 50 are engaged with each other.

As the main shaft 60 further rotates in a state where the fourth gear 40 and the fifth gear 50 are engaged with each other, the entire structure connected to the main shaft rotates about the fifth gear rotation axis (z axis) .

Therefore, as shown in FIG. 6B, the outside mirror 400 of the vehicle is vertically erected so that the driver can travel in a narrow space without securing the outside mirror and securing the right and left viewability.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Will be apparent to those of ordinary skill in the art.

10: First gear
12: Driving motor
20: Second gear
30: Third gear
32: Connection
40: Fourth gear
50: fifth gear
60: Main shaft
60a: thread
62: 1st shaft
64: Second shaft
66: elastic member
100: 1st body
200: Second body
300: third body
400: Outside mirror

Claims (5)

An outboard mirror structure that is rotatably mounted on both left and right sides of a vehicle,
A main shaft rotatably coupled to a second gear engaged with a first gear rotated by a drive motor; A third gear selectively coupled to one side of the main shaft and rotated together with the main shaft; And a fifth gear selectively engaged with a fourth gear coupled to the other end of the main shaft and coupled to the vehicle body; / RTI >
When the main shaft and the third gear are engaged and the fourth and fifth gears are spaced apart, the outside mirror coupled to the third gear is rotated with respect to the rotational axis of the main shaft,
And the outer gear is rotated with respect to the rotation axis of the fifth gear when the engagement of the main shaft and the third gear is released and the fourth gear and the fifth gear are engaged with each other. .
The method according to claim 1,
A thread formed on an outer circumferential surface of the main shaft so that the main shaft is linearly moved in a direction opposite to the fifth gear direction or the fifth gear in accordance with the rotation of the second gear; Further comprising a second degree of freedom outer mirror structure.
3. The method of claim 2,
The main shaft and the third gear are engaged when the fourth gear and the fifth gear are disengaged and the main shaft and the third gear are engaged with each other when the fourth gear and the fifth gear are engaged with each other, A connecting part for separating; Further comprising a second degree of freedom outer mirror structure.
2. The automatic transmission according to claim 1,
A first shaft coupled with the second gear and the third gear and having a hollow therein; And
A second shaft coupled to the fourth gear and inserted into the hollow of the first shaft to engage the first shaft; And a second degree of freedom outer mirror structure.
5. The method of claim 4,
An elastic member inserted in the hollow of the first shaft and disposed between the first shaft and the second shaft; Further comprising a second degree of freedom outer mirror structure.

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