KR101040313B1 - Wiper apparatus having variable driving angle - Google Patents

Abstract

PURPOSE: A wiper device with a variable driving angle is provided to conveniently regulate the driving angle of wipers by changing the relative rotational angle between a guide unit and a connecting unit. CONSTITUTION: A wiper device with a variable driving angle comprises a wiper unit(10), a guide unit(40), and a fixing unit(50). The guide unit has a holding protrusion which is fitted in one of holding grooves formed at regular angle intervals in the fixing unit. The guide unit has an operating protrusion which is operated by a user through an opening(22) of a cover(20). Accordingly, the guide unit is rotated by an accurate desired angle and the user can recognize the driving angle of the wiper unit accurately.

Description

Wiper Apparatus Having Variable Driving Angle {Wiper Apparatus Having Variable Driving Angle}

The present invention relates to a wiper device that can adjust the driving angle, and more specifically, as the insertion protrusion of the rotation pin is inserted into the circular closed curve path formed in the guide part and circulated, the rotation pin is inserted into the insertion groove of the connection portion. The present invention relates to a wiper device which is moved so as to be lost or removed, and which controls the driving of the wiper unit.

In general, in the case of a conventional wiper, a driving method using a four-section link has been used. By using four links, a four-section link is designed so that the link having the longest length is fixed and another link connected to the longest link is reciprocated as the link having the shortest length is rotated. It is a driving method.

That is, in the related art, the wiper is reciprocated using this, but the four-section link method has a problem that the wiper can only be driven at a predetermined angle.

In addition, even if it is necessary to change the driving angle, it is necessary to adjust the length of each link by redesigning the link itself. Therefore, it is time-consuming and expensive to replace the link and redesign the mechanism. no.

In addition, in order to solve such a problem, when a method of controlling the driving angle of the wiper in an electronic manner is used, a separate power is used, and the durability of the device decreases frequently, resulting in a problem of increased cost.

Therefore, there is a need for a way to solve this problem.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide a wiper device for variously setting the driving angle of the wiper unit.

In addition, to provide a wiper device that is durable and designed to be used in small equipment.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

Wiper device having a variable drive angle of the present invention for solving the above process, the rotating part for providing a rotational force, one side is open, the connecting portion is formed in the receiving space and the insertion groove exposed to the inside, circular A guide groove having a closed curve path, wherein a part of the closed curve path is formed to expose the receiving space, the guide groove formed to have a curvature smaller than the circular curvature, and the opening provided on one side of the connection part, the accommodation space Is positioned in, and has an insertion protrusion inserted into the guide groove, is rotated by the rotational force of the rotary unit is moved to fit or exit the insertion groove as the insertion protrusion circulates along the closed curve path, the insertion groove Rotation pin having a restoring force in the insertion direction, because the rotation pin is rotated by being inserted into the insertion groove It is connected to the rotary connection and the restoration unit and the connecting part to provide a restoring force for returning to a predetermined location and comprising a wiper to be driven with the rotation of the link portion.

In addition, a portion of the closed curve path formed to have a curvature smaller than the circular curvature of the closed curve path may be formed in a straight line.

The guide part may be rotatably provided at the connection part to change a position of a part of the closed curve path formed to have a curvature smaller than a circular curvature of the closed curve path.

In addition, the guide part may be provided with an operation protrusion for rotating the guide part from the outside of the guide part.

In addition, the restoring unit may be formed of a torsion spring.

In addition, the guide part may further include a fixing part connected to the guide part to fix the guide part, wherein either one of the guide part or the fixing part is formed with a locking groove, and the other side may have a locking protrusion. .

In addition, the insertion protrusion may be provided to be moved along the longitudinal direction of the rotary pin.

The wiper device having the variable drive angle of the present invention for solving the above problems has the following effects.

First, there is an advantage that the driving angle of the wiper can be adjusted only by changing the relative rotation angle of the guide portion and the connecting portion.

Second, since the driving angle of the wiper can be adjusted using only a mechanical method, there is an advantage that no separate power consumption occurs.

Third, there is also an advantage that the durability can be enhanced accordingly.

Fourth, there is an advantage that the driving angle of the wiper can be set without limitation.

Fifth, there is an advantage that can be applied to small equipment.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view showing a state in which a wiper device having a variable driving angle is installed according to an embodiment of the present invention;
2 is a perspective view showing the overall appearance of the wiper device having a variable drive angle according to an embodiment of the present invention;
3 is an exploded perspective view of a wiper device having a variable drive angle according to an embodiment of the present invention;
Figure 4 is a perspective view showing a guide portion of the wiper device having a variable drive angle according to an embodiment of the present invention;
5 is a perspective view showing a connection relationship of the wiper device having a variable drive angle according to an embodiment of the present invention;
6 is a cross-sectional view showing a rotating pin structure of the wiper device having a variable drive angle according to an embodiment of the present invention;
7 is a cross-sectional view showing the rotation of the rotary pin and the connecting portion of the wiper device having a variable drive angle according to an embodiment of the present invention;
8 is a cross-sectional view showing a state in which the rotation pin of the wiper device having a variable drive angle is removed from the insertion groove of the connecting portion according to an embodiment of the present invention;
9 is a cross-sectional view showing a state in which the connection portion of the wiper device having a variable drive angle is restored to the initial position according to an embodiment of the present invention;
10 is a cross-sectional view showing a state in which the connection portion of the wiper device having a variable drive angle is completely restored to the initial position according to an embodiment of the present invention;
11 is a cross-sectional view showing a state in which the rotation pin of the wiper device having a variable drive angle according to an embodiment of the present invention is reinserted into the insertion groove of the connecting portion.
12 is a perspective view showing a fixing part of the wiper device having a variable drive angle according to an embodiment of the present invention; And
13 is a perspective view illustrating a connection relationship between a fixing part and a guide part of a wiper device having a variable driving angle according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and further description thereof will be omitted.

First, referring to Figures 1 and 2, a state of the wiper device according to an embodiment of the present invention is shown. As shown, the wiper device in the present invention is to be a wiper device used in small optical equipment, but is not limited to this, it is natural that it can be applied to various fields such as a wiper of a vehicle.

In the wiper device according to the present embodiment, the wiper part 10 is provided, and the connection part 30, the guide part 40, and the fixing part 50 are positioned inside the cover 20. In addition, the rotating unit 60 for driving the wiper device is provided at the rear. In addition, as the rotation unit 60 rotates, the connection unit 30 may be connected to the wiper unit 10 to transmit the rotational force to the wiper unit 10.

Hereinafter, in order to understand the present invention in more detail, each component described above will be described in detail with reference to FIG. 3. 3, it can be seen that each component of the wiper device is listed.

First, the wiper unit 10 is provided to remove foreign substances, moisture, and the like on the surface of the object, and may have various wiper shapes that are generally used, and thus details thereof will be omitted.

The cover 20 is installed to surround the outside of the components for driving the wiper portion 10 of the present invention, thereby protecting the components from external impact and at the same time forming a neat appearance.

In particular, in the present embodiment, the opening hole 22 is formed along the circumference of the cover 20 on one side of the cover 20, through which the operation protrusion 47 of the guide part 40 can be manipulated. This will be described later.

The rotating unit 60 is provided to provide rotational force to the wiper device, and generally, a method of axially rotating by a motor or the like is used. In particular, in the present embodiment, the rotating part 60 is formed in a cylindrical shape, and a hollow 62 is formed on the inside for coupling with other components.

Next, the fixing unit 50 is provided in a fixed state so as not to rotate, and in particular, to allow the guide unit 40 to be fixed after a certain angle of rotation. That is, the guide part 40 may be rotatably connected to the fixing part 50, and may be fixed to the fixing part 50 after being rotated at a desired angle.

On the other hand, the guide portion 40 may be fixed in a variety of ways other than being fixed by the fixing unit 50 in this way. That is, the fixing part 50 is provided to easily adjust the rotation angle of the guide part 40, may be implemented by other methods or may be omitted depending on the case.

In the present embodiment, the fixing part 50 is formed in a disc shape, and a through hole 52 through which the rotating part 60 can penetrate is formed inside. And, more specific details about the fixing unit 50 will be described later.

Next, the connection part 30 is a component directly connected to the wiper part 10, and transmits the rotational force of the rotation part 60 to the wiper part 10 so that the wiper part 10 can be driven. And, the opposite side connected to the wiper 10 is open, the receiving space is formed inside.

In addition, the insertion groove 32 is formed on the side surface is exposed to the receiving space. The insertion groove 32 may be formed to a predetermined depth so as to be exposed only to the receiving space inside the connection part 30, but may also be formed to completely penetrate the side surface of the connection part 30 as in the present embodiment.

The guide part 40 is provided on one side of the connection part 30 that is open, and is a component that does not rotate in conjunction with the rotational force of the rotation part 60. That is, the connection part 30 and the wiper part 10 are rotated according to the rotation of the rotating part 60, but the guide part 40 maintains a fixed position irrespective of this.

In addition, a guide groove is formed at a portion of the guide portion 40 exposed to the accommodation space of the connection portion 30, which is shown in detail in FIG. 4. Referring to FIG. 4, it can be seen that the state of the guide part 40 is enlarged.

As described above, the guide groove 45 is formed on the side of the guide portion 40 is exposed to the receiving space of the connecting portion 30, the one side is provided with the operation projection 47. In addition, a through hole is formed inside the guide part 40, and the rotating part 60 may pass through the through hole. As a result, the through-hole can maintain the fixed position irrespective of this even if the rotating part 60 is rotated.

In addition, specifically, the shape of the guide groove 45 has a circular closed curve path as a whole. In this case, any part of the closed curve path is formed to have a curvature smaller than a circular curvature, and as shown, a part of the closed curve path is formed as a straight line with zero curvature.

However, unlike the present embodiment, a part of the closed curve path may be formed as a smooth curve having a small curvature in addition to a straight line, which will be described later. In addition, for convenience of description below, the circular closed curve path is referred to as a first section 45a, and a part having a curvature smaller than the circular curvature is referred to as a second section 45b.

Here, referring again to FIG. 3, it can be seen that the rotation pin 70 is provided between the connection part 30 and the guide part 40. That is, the rotary pin 70 is located in the receiving space of the connecting portion 30. A detailed coupling relationship between the connection part 30, the guide part 40, and the rotation pin 70 will be described with reference to FIG. 5.

As shown, the rotating pin 70 is formed to be long overall, and is connected to the rotating part 60 to be rotated by the rotating part 60. In addition, the insertion pin 72 is further formed on the rotary pin 70, and the insertion protrusion 72 is inserted into the guide groove 45 of the guide part 40. That is, the rotation pin 70 is rotated by the rotational force provided from the rotation unit 60, so that the insertion protrusion 72 is circulated along the closed curve path of the guide groove 45.

In addition, the end of the rotary pin 70 is inserted into the insertion groove 32 of the connecting portion 30. As a result, as the rotation unit 60 rotates, the insertion pin 72 is circulated along the guide groove 45 while the rotation pin 70 is rotated, and the end of the rotation pin 70 is inserted into the insertion groove 32. Since it is inserted in, the connecting portion 30 is also rotated.

In summary, the rotational force is transmitted in the order of the rotation part 60, the rotation pin 70, the connection part 30, the wiper part 10.

Here, although not shown, the wiper device of the present invention is further provided with a restoring unit for providing a restoring force for returning the connection portion 30 rotated according to the rotational force to a predetermined position. Accordingly, the connection part 30 rotated together by the rotation pin 70 is rotated in the opposite direction to the direction of rotation of the rotation part 60 when the rotation pin 70 is later removed from the insertion groove 32. It will be possible to return to the position.

That is, the connection part 30 is rotated in the same direction as the rotation direction of the rotation part 60 when the rotation pin 70 is inserted into the insertion groove 32, the rotation pin 70 is to be removed from the insertion groove (32) In this case, the rotating part 60 is rotated in a direction opposite to that of the rotating part 60 to be returned.

In this embodiment, the restoring portion is to be formed of a torsion spring, one end is connected to the connecting portion 30, the other end is to be connected to the fixing portion (50). Therefore, the tension is applied to the torsion spring as the connection part 30 rotates, and when the rotating pin 70 is pulled out of the insertion groove 32, the connection part 30 is reversely rotated and returned by the release of the tension.

On the other hand, in the present embodiment, there is further provided a seating portion 80 that can seat the rotary pin (70). Specifically, the seating portion 80 is formed with a seating groove in which the rotary pin 70 is positioned, and the rotary pin 70 is reciprocated to be fitted into or removed from the insertion groove 32 of the connection part 30 on the seating groove. Can be. Here, the seating portion 80 is shown in Figures 3, 5 and 13, in particular shown in a semi-circular cross-section so that the structure can be more easily understood. Originally the shape of the seating portion 80 will have a perfect circular shape, so that the rotary pin 70 can be held in a restraint groove.

At this time, the rotation pin 70 is formed to have a restoring force in the direction to be inserted into the insertion groove 32, in this embodiment the elastic member 74 is provided to surround the outer side of the rotation pin 70 by the restoring force This is implemented. Therefore, in general, the rotary pin 70 is always kept in the insertion groove 32.

And, since the seating portion 80 is connected to the rotating portion 60, the rotary pin 70 may be rotated with the rotation of the seating portion (80).

As described above, the description of each component of the present invention and the connection relations thereof have been described. Hereinafter, referring to FIGS. 7 to 11 sequentially showing the driving process of the present invention, the actual driving process of the present invention will be described. Explain.

First, referring to Figure 7, the end of the rotary pin 70 is inserted into the insertion groove 32 of the connecting portion 30, the insertion projection 72 is inserted into the guide groove 45 of the guide portion 40 You can see that. In this state, as the rotating part 60 is rotated, the rotating pin 70 is rotated, and the connection part 30 caught by the rotating pin 70 is rotated by the insertion groove 32.

In this case, the insertion protrusion 72 is in a state of circulating the first section 45a of the guide groove 45.

Next, referring to FIG. 8, it can be seen that the insertion protrusion 72 reaches the second section 45b of the guide groove 45. The second section 45b has a curvature smaller than that of the first section 45a, and in particular, the second section 45b is formed as a straight line as described above.

That is, as the insertion protrusion 72 enters the second section 45b having a curvature smaller than the first section 45a having a circular shape, the rotation pin 70 is pushed inward and the end thereof is inserted into the insertion groove 32. ).

As a result, even if the second section 45b does not have a straight shape, it is sufficient that the rotation pin 70 has a curvature enough to fall out of the insertion groove 32. Of course, in consideration of aspects such as workability and reliability, it will be preferable that the second section 45b is formed in a straight shape as in the present embodiment.

Next, referring to FIG. 9, the rotation pin 70 continues to rotate in a completely removed state from the insertion groove 32, and the connection part 30 is rotated back to a preset initial position by the restoring force of the restoration part. can confirm.

10, the connecting portion 30 is completely returned to the initial position, and as the rotary pin 70 continues to rotate, the insertion protrusion 72 is moved from the second section 45b to the first section 45a. You will enter again.

On the other hand, since the rotation pin 70 is pushed inward from the insertion groove 32 and rotated along the inner wall of the connecting portion 30 as before, the insertion protrusion 72 smoothly enters the first section 45a. The problem arises that you can't. Therefore, the insertion protrusion 72 needs to be provided to be movable along the longitudinal direction of the rotation pin 70, which is shown in detail in FIG.

Referring to FIG. 6, an opening groove larger than the cross-sectional area of the insertion protrusion 72 is formed in the rotation pin 70 of the present embodiment, and the insertion protrusion 72 may be located in the inserted shape. Therefore, the insertion protrusion 72 can be slightly moved back and forth in the rotary pin 70, it is possible to solve the above problems.

In addition, the inner side of the opening groove, another elastic member 76 for restoring the insertion projection 72 in the direction opposite to the restoring force of the elastic member 74 for providing a restoring force to the rotary pin 70 may be provided. This is not necessarily provided, but may be provided for smooth driving of the present invention.

Referring to FIG. 10 again in consideration of this, when the insertion protrusion 72 reaches the first section 45a from the second section 45b, the insertion protrusion 72 moves to the end portion of the rotary pin 70. As it can be seen that it can smoothly enter the first section (45a).

Next, referring to FIG. 11, the position of the insertion groove 32 and the rotation pin 70 of the connecting portion 30 restored to the initial position by the restoration unit is matched again, and the rotation pin 70 is inserted into the insertion groove ( Is reinserted in 32). After this point, the connection part 30 again rotates in the same direction as the rotary pin 70, and because the above-described processes are repeated, the connection part 30 repeats the forward and reverse rotations, and thus the wiper part ( 10) will also reciprocate.

The driving process of the present invention has been described above. On the other hand, the wiper device of the present invention can arbitrarily set the reciprocating angle of the wiper portion 10, which will be described below.

As described above, the wiper device of the present invention, while the connecting portion 30 is rotated together in accordance with the rotation of the rotary pin 70, the insertion projection 72 enters the second section 45b to rotate the rotary pin 70 ) Is removed from the insertion groove 32, the connection portion 30 is restored by rotating in reverse.

As a result, it can be seen that the rotation angle of the wiper device of the present invention can be adjusted according to the position of the second section 45b. That is, when the starting point of the second section 45b is located close to the initial position of the insertion groove 32, the wiper portion 10 is reciprocated at a small angle, and the second section (from the initial position of the insertion groove 32) When the starting point of 45b) is located far, the wiper portion 10 can be reciprocated at a large angle.

In summary, the reciprocating angle of the wiper portion 10 can be adjusted by changing the relative rotation angles of the connecting portion 30 and the guide portion 40.

To do this, in this embodiment, the fixing part 50 is provided. In addition, the state of the fixing part 50 is shown in detail in FIG. 12, and the connection relationship between the fixing part 50 and the guide part 40 is shown in FIG. 13.

As described above, the fixing part 50 is provided in a fixed state so as not to rotate, and to fix the guide part 40 after a predetermined angle rotation. In order to implement this, either one of the guide portion 40 or the fixing portion 50 is formed with a locking groove, the other side may be formed with a locking projection. Of course, even if the locking groove and the locking projection are not implemented, the driving angle of the wiper portion 10 may be changed by arbitrarily appropriately rotating the guide portion 40, but it is effective in terms of accurate driving and vibration prevention during use.

Specifically, in the present embodiment, the locking groove 54 is formed in the fixing part 50, and the locking protrusion 49 is provided in the guide part 40. In particular, the locking groove 54 is provided in the fixed portion 50 in a circular shape for each predetermined angle, so that the user can rotate the guide portion 40 exactly as desired. That is, the user can accurately recognize the driving angle of the current wiper 10.

In addition, in the present embodiment, the locking protrusion 49 is formed of a ball plunger. When the ball plunger is used as described above, the user can feel the excellent operation sensitivity, and at the same time, the guide part 40 can be stably fixed to the fixing part 50.

On the other hand, as mentioned, the guide portion 40 may be provided with a manipulation projection 47 to enable the guide portion 40 to rotate on the outside of the guide portion 40. Since the operation protrusion 47 is formed to protrude so as to be manipulated through the opening hole 22 of the cover 20, the user easily adjusts the driving angle of the wiper unit 10 by rotating the guide unit 40. Can be.

As described above, the wiper device of the present invention can adjust the driving angle of the wiper unit 10, and since no separate control means is provided, it does not consume additional power and may have a solid durability.

As described above, a preferred embodiment according to the present invention has been described, and the fact that the present invention can be embodied in other specific forms in addition to the above-described embodiments without departing from the spirit or scope thereof has ordinary skill in the art. It is obvious to them. Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.

10: wiper part
20: cover
22: opening hole
30: connection
32: insertion groove
40: guide part
45: guide groove
50: fixed part
60: rotating part
70: rolling pin
72: insertion protrusion
80: seating part

Claims (7)

Rotating portion to provide a rotational force;
One side is open, the connecting portion is formed inside the receiving space and the insertion groove exposed to the receiving space;
A seating portion provided in the accommodation space, and having a seating groove formed therein, the seating portion being connected to the rotating portion to rotate together with the rotation of the rotating portion;
A guide portion having a circular closed curve path, wherein a part of the closed curve path is formed such that a guide groove formed to have a curvature smaller than the circular curvature is exposed to the accommodation space and is provided at an open side of the connection part;
Is seated in the seating groove is rotated with the seating portion, is inserted into the guide groove has an insertion protrusion for circulating the closed curve path in accordance with the rotation of the seating portion, when the insertion protrusion is located in the circular curvature portion A rotation pin fitted to the insertion groove and moved to be removed from the insertion groove when positioned in a portion having a curvature smaller than a circular curvature, the rotation pin having a restoring force in a direction to be inserted into the insertion groove;
A restoring unit providing a restoring force to return to a predetermined position when the rotatable pin is removed from the insertion groove when the rotation pin is inserted into the insertion groove and rotated together; And
A wiper part connected to the connection part and driven according to rotation of the connection part;
Wiper device comprising a. The method of claim 1,
And a portion of the closed curve path formed to have a curvature smaller than a circular curvature of the closed curve path is formed in a straight line. The method of claim 1,
And the guide part is rotatably provided at the connection part to change a position of a part of the closed curve path formed to have a curvature smaller than a circular curvature of the closed curve path. The method of claim 3,
The guide unit is a wiper device provided with an operation projection for rotating the guide portion from the outside of the guide portion. The method of claim 1,
And the restoration unit is formed of a torsion spring. The method of claim 1,
Further comprising a fixing part connected to the guide part to fix the guide part after rotation,
One of the guide portion or the fixing portion is formed with a locking groove, the other side is a wiper device formed with a locking projection. The method of claim 1,
The insertion protrusion is a wiper device provided to be moved along the longitudinal direction of the rotary pin.

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