KR100616374B1 - Turn-Signal Switch of Vehicle - Google Patents

Abstract

The present invention relates to a turn signal switch of an automobile, comprising: a switch housing having a switch circuit embedded therein and having an upper opening; A switch cover coupled to an opening of the switch housing and having a guide hole formed at one side thereof; A switch bracket installed in the switch housing and installed to rotate about a hinge point formed at one side of the switch housing; A switch lever connected to the switch bracket and configured to operate the switch; A ratchet provided between the switch cover and the switch bracket to move the switch bracket to a neutral position after completion of a change of direction; And a ratchet spring having a ratchet spring for resiliently installing the ratchet on the switch cover, wherein the guide hole formed in the switch cover is formed in a rectangular shape, and among the rectangular shapes, a shape in a direction of the switch lever is formed. It is formed in a semi-circular shape, the conveying projection formed on the upper side of the ratchet is formed in a semi-cylindrical shape to make a surface contact with the handle shaft side of the guide hole formed in the switch cover, the operation of the cancellation mechanism There is an effect to minimize the noise generated by the operation.

Description

Turn-Signal Switch of Vehicle

1 is an exploded perspective view of a turn signal switch of a vehicle according to the prior art;

2 is a plan view of a turn signal switch of a vehicle according to the prior art;

3 is an exploded perspective view of a turn signal switch of a vehicle according to the present invention;

4 is a plan view of a turn signal switch of a vehicle according to the present invention;

Figure 5 is a ratchet side cross-sectional view of a turn signal switch of a motor vehicle according to the present invention.

6 and 7 is a state diagram showing the operating state of the turn signal switch of the vehicle according to the invention.

<Description of the symbols for the main parts of the drawings>

50: switch housing 52: switch cover

54: switch bracket 56: switch lever

58: Ratchet 60: Ratchet Spring

62: guide hole 64: jamming projection

66: guide projection 68: locking jaw

70: transfer protrusion 72: bent portion

74: hinge point 80: handle shaft

82: cancellation cam

The present invention relates to a turn signal switch of a vehicle, and more particularly, when the direction indicator is operated through the switch lever and the handle is rotated forward, the ratchet is minimized by the impact of the impact between the ratchet and the locking protrusion when the ratchet is rotated in the home position. It relates to a turn signal switch of a car.

1 is an exploded perspective view of a turn signal switch of a vehicle according to the prior art, and FIG. 2 is a plan view of a turn signal switch of the vehicle according to the prior art.

As shown in FIGS. 1 and 2, a turn signal switch of a vehicle according to the prior art includes a switch housing 2 having a built-in switch circuit and an upper portion thereof, and a switch housing 2 built in the switch housing 2. (2) a switch bracket 4 installed to rotate about a hinge point 16 provided at one side, a switch lever 6 connected to the switch bracket 4 to operate a turn signal, and the switch housing (2) supported by the switch cover 8 coupled to the upper opening and the ratchet spring 12 fixed to the switch cover 8 and after the switch lever 6 operation, when the direction change is complete It consists of a ratchet 10 which pushes the switch bracket 4 so that the switch lever 6 is in a neutral position.

Here, the ratchet 10 may be disposed on both sides of the upper portion of the switch bracket 4 so that the switch bracket 4 may come to a neutral position by a pushing force of the ratchet 10 after the switch bracket 4 rotates in one direction. A pair of engaging projections 4 are formed to transmit the force of), and the ratchet 10 is formed when the switch bracket 4 rotates clockwise or counterclockwise on the upper side of the switch bracket 4. A pair of protrusions protruding from the switch housing 2 to catch the cancel cam 20 formed on the handle shaft 18 and then reinserted when the switch bracket 4 is in a neutral position. Guide protrusions 22 formed with the engaging portion 24 is formed in a 'V' shape.

In addition, a latching jaw (not shown) is formed at the lower side of the ratchet 10 so that the ratchet 10 is supported by the ratchet spring 12, and the ratchet 10 is at the upper side of the switch. As the bracket 4 rotates, a transfer protrusion 28 is formed to be fitted into the guide hole 26 formed in the switch cover 8 to allow left and right reciprocation. Here, the locking jaw and the transfer projection 28 is formed in a cylindrical shape.

Meanwhile, fitting protrusions (not shown) to which both sides of the ratchet spring 12 may be fitted are formed at both sides of the bottom front end of the switch cover 8.

Looking at the operation of the prior art configured as described above are as follows.

Referring to the case in which the vehicle is to be turned left, when the switch lever 6 is rotated counterclockwise, the switch bracket 4 is also rotated counterclockwise about the hinge point 16 and the switch housing 2 When the switch circuit built in the lower part of the car is changed, the left turn signal of the vehicle is turned on.

At this time, the ratchet 10 protrudes toward the handle shaft 18 along the 'V' shaped guide protrusion 22 formed on the upper side of the switch bracket 4 and is caused by the elastic force of the ratchet spring 12. It enters the action region of the cancel cam 20 formed in the handle shaft 18. Here, the locking jaw formed on the lower side of the ratchet 10 is caught by the locking portion 24 of the 'V' shaped guide protrusion 22 so that the ratchet 10 does not protrude any more.

Subsequently, when the handle is rotated counterclockwise, the ratchet 10 is temporarily engaged with the cancel cam 20 and rotates clockwise, and the elastic force of the ratchet spring 12 provided in the switch cover 8 is rotated. Is rotated by

At this time, when the ratchet 10 rotates in the clockwise direction, the locking protrusions 14 formed on both sides of the upper portion of the switch bracket 4 restrain the rotation of the ratchet 10 in the counterclockwise direction. The ratchet 10 cannot transmit any force to the switch bracket 4 which is rotated counterclockwise so that the switch bracket 4 is still in the rotated state.

However, when the driving of the vehicle is completed and the handle shaft 18 rotates in the clockwise direction, the ratchet 10 is rotated counterclockwise by the cancel cam 20 so that the upper side of the switch bracket 4 is rotated. The switch bracket 4 and the switch lever 6 connected thereto are rotated in the clockwise direction while pushing the locking protrusion 14 formed in the lock protrusion 14 to move to the neutral position.

When the switch lever 6 is moved to the neutral position in this way, the switch circuit is changed to turn off the left turn indicator.

Such a conventional turn signal switch rotates the switch lever 6 in the counterclockwise direction when the vehicle is to be turned left and then rotates the handle in the rotational direction of the vehicle. The ratchet 10 cancels the cam 20. ) Rotates in a clockwise direction with the cylindrical transfer protrusion 28 as a hinge point, and when it is separated from the cancel cam 20, it is fixed to a fitting protrusion (not shown) formed in the switch cover 8. It is rotated back to its original position by the elastic force of the ratchet spring 12 supporting the seat 10. At this time, the latching jaw, which is a hinge point, is formed in a cylindrical shape, and thus the point with the locking portion 24 of the guide protrusion 22. When the ratchet 10 is returned by the contact, the ratchet 10 is lifted by a large amount, and the resistance is small so that the return strength and speed are increased, so that the ratchet 10 is caught by the switch bracket 4. Added to) There was a growing problem caused by the rub price.

In addition, the ratchet 10 has a problem in that the part where the ratchet 10 and the locking protrusion 14 collide with each other due to the impact applied to the locking protrusion 14 of the switch bracket 4.

The present invention has been made to solve the above problems of the prior art, the object of the present invention is to operate the turn signal switch of the car and then rotate the handle shaft in the rotational direction of the car, the ratchet is engaged with the cancel cam to rotate the Friction sound due to the impact applied to the latching protrusion formed on the switch bracket as the transfer protrusion of the ratchet and the guide hole of the switch bracket are face-contacted when it is rotated to its original position by the elastic force of the ratchet spring which is separated from the cancel cam and fixed to the switch cover. The purpose is to reduce.

In order to achieve the above object, a turn signal switch of a vehicle of the present invention includes a switch housing in which a switch circuit is built and an upper portion thereof, and is installed so as to rotate about a hinge point built into the switch housing and provided at one side of the switch housing. A switch bracket, a switch lever connected to the switch bracket to operate an indicator light, a switch cover coupled to an upper opening of the switch housing, a switch cover coupled to a lower end of the switch cover and shifting direction after operation of the switch lever When the switch bracket is completed, a ratchet for pushing the switch bracket to the neutral position, a ratchet spring for elastically coupling the ratchet to the switch cover, and the housing cover to prevent the ratchet spring from being separated. Is provided on the bottom of the ratchet It consists of a pair of support means to which both sides of the spring are fitted.

Here, a pair of locking projections are formed on both sides of the upper portion of the switch bracket so that the power of the ratchet is transmitted so that the switch bracket can be brought to the neutral position by the pushing force of the ratchet after the switch bracket rotates in one direction. When the switch bracket is rotated clockwise or counterclockwise on the upper side of the switch bracket, the ratchet protrudes from the switch housing so as to be caught by the cancel cam formed on the handle shaft, and then when the switch bracket is in the neutral position again. 'V' shaped guide protrusion is formed to allow the reciprocating motion to be inserted.

In addition, a latching jaw is formed at the lower side of the ratchet to support the ratchet at the lower portion of the switch bracket by the ratchet spring, and at the upper side, the ratchet is reciprocated left and right according to the rotation of the switch bracket. The transfer protrusion is formed to be fitted into the guide hole formed in the switch cover.

Here, the guide hole formed in the switch cover is formed in a rectangular shape to the extent that the feed projections can be sufficiently inserted, the shape of the switch lever direction of the rectangular shape in a semi-circular shape, the feed projection is the guide By forming a semi-cylindrical shape so as to make a surface contact with the handle shaft side of the hole, after operating the turn signal switch of the car, the handle shaft is rotated in the rotation direction of the car, and the ratchet is rotated in engagement with the cancel cam, and then is released from the cancel cam. When the ratchet is rotated to its original position by the elastic force of the ratchet spring fixed to the cover, it is characterized in that the friction noise generated when the ratchet comes into contact with the engaging protrusion formed on the switch bracket.

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

Figure 3 is an exploded perspective view of the turn signal switch of the vehicle according to the invention, Figure 4 is a plan view of the turn signal switch of the vehicle according to the invention, Figure 5 is a ratchet side cross-sectional view of the turn signal switch of the vehicle according to the invention 6 and 7 will be described together as a state diagram showing an operating state of a turn signal switch of a vehicle according to the present invention.

As shown in FIGS. 3 to 5, a turn signal switch of an automobile according to the present invention includes a switch housing 50 having a lower switch circuit built therein and an upper opening thereof; A switch cover 52 coupled to an opening of the switch housing 50 and having a guide hole 62 formed at one side thereof; A switch bracket (54) which is installed in the switch housing (50) and rotates in a clockwise or counterclockwise direction about a hinge point (74) formed at one side of the switch housing (50); A switch lever 56 connected to the switch bracket 54 and configured to operate the switch; And a ratchet 58 provided between the switch cover 52 and the switch bracket 54 to move the switch bracket 54 to a neutral position after the change of direction is completed.

Here, the guide hole 62 formed in the switch cover 52 has a width in which the transfer protrusion 70 to be described below can be sufficiently inserted into a rectangular shape, and is formed in a rectangular shape and in the direction of the switch lever 56 of the rectangular shape. To form a semicircular shape.

In addition, the ratchet 58 may be disposed on both upper sides of the switch bracket 54 so that the switch bracket 54 may come to a neutral position by a pushing force of the ratchet 58 after the switch bracket 54 is rotated in one direction. A pair of locking projections 64 are formed to transmit the force of the force to the switch bracket 54.

In addition, when the switch bracket 54 is rotated clockwise or counterclockwise, the ratchet 58 is caught by the cancel cam 82 formed on the handle shaft 80 on the upper side of the switch bracket 54. The guide protrusion 66 is protruded from the switch housing 50 to allow the reciprocating motion to be inserted again when the switch bracket 54 is brought to the neutral position when the rotation of the vehicle is completed. Is formed.

Here, when the switch bracket 54 is in the neutral position, the guide protrusion 66 is located at the projection of the guide projection 66, the locking jaw 68 of the ratchet 58 to be described below is located. The ratchet 58 has a stopper function to prevent the ratchet 58 from protruding from the switch housing 50.

In addition, a latching jaw 68 is formed at the lower side of the ratchet 58 so as to be reciprocated along the guide protrusion 66 and above the guide hole 62 formed at the switch cover 52. The transfer protrusion 70 is formed to allow only the right and left reciprocating transfer without the chute 58 being separated.

Here, the latching jaw 68 supports the ratchet spring 60 so that the ratchet 58 may be elastically installed to the switch cover 52 by the ratchet spring 60.

The ratchet 58 is supported by the ratchet spring 60 on the switch cover 52, and both sides of the ratchet spring 60 may be fitted to both sides of the bottom surface of the switch cover 52. A pair of support means (not shown) are formed.

The transfer protrusion 70 formed on the upper side of the ratchet 58 is formed in a semi-cylindrical shape to make surface contact with the handle shaft 80 side of the guide hole 62 formed in the switch cover 52.

Here, the handle of the guide hole 62 formed in the switch cover 52 when the ratchet 58 protrudes from the switch housing 50 by rotating the switch lever 56 clockwise or counterclockwise. The transfer protrusion 70 of the ratchet 58 is located on the shaft 80 side such that the guide hole 62 and the transfer protrusion 70 make surface contact, whereby the ratchet 58 is switched on. After protruding from the housing 50 by a predetermined length, it has a stopper function to prevent protruding further.

The portion where the transfer protrusion 70 and the guide hole 62 are in surface contact is coated with a lubricating component such as grease, which can reduce the amount of impact. When the transfer protrusion 70 and the guide hole 62 are in surface contact, By placing the bent portion 72 in the surface contact portion with the guide hole 62 of the semi-cylindrical transfer protrusion 70 so that the lubricating component is not easily separated, the transfer protrusion 70 and the guide hole 62 are in surface contact. The lubricating component remains in the curved portion 72 so that the lubricating component is not easily released as time passes.

As such, the transfer protrusion 70 is formed into a semi-cylindrical shape to make a surface contact with the guide hole 62, so that the handle shaft 80 rotates in the rotational direction of the vehicle so that the ratchet 58 cancels the cancellation. When the cam 82 is separated from the cam 82 by the surface contact between the guide hole 62 and the transfer protrusion 70 when the original position is rotated by the elastic force of the ratchet spring 60 formed on the switch cover 52, the transfer protrusion 70 is resisted and the rotation speed and strength are reduced so that the friction sound due to the impact of the ratchet 58 on the locking projection 64 of the switch bracket 54 is reduced.

In addition, between the ratchet 58 and the locking protrusion 64 formed on the upper side of the switch bracket 54, the ratchet 58 is engaged with the cancel cam 82 to move the transfer protrusion 70 to the hinge point. When rotated in the clockwise or counterclockwise direction and is separated from the cancel cam 82, when the ratchet 58 is rotated back to its original position by the elastic force of the ratchet spring 60 formed on the switch cover 52, the ratchet 58 The gaps are formed at predetermined intervals so that they do not collide with the locking projections 64.

Referring to the operation principle of the turn signal switch of the vehicle according to an embodiment of the present invention configured as described above are as follows.

First, when the vehicle is to be turned left, as shown in FIG. 6, when the switch lever 56 is rotated counterclockwise, the switch bracket 54 is also counterclockwise around the hinge point 74. The left turn indicator of the vehicle is turned on as the switch circuit built in the lower part of the switch housing 50 is changed.

When the switch bracket 54 is rotated, the lower side of the ratchet 58 is fixed by the elastic force of the ratchet spring 60 which is fixed to the supporting means formed in the switch cover 52 and supports the ratchet 58. The latching jaw 68 formed at the upper portion of the switch bracket 54 is transferred along the 'V' shaped guide protrusion 66 and the ratchet 58 protrudes by a predetermined distance in the direction of the handle shaft 80. It enters the action region of the cancel cam 82 formed on the handle shaft 80.

At this time, the transfer projection 70 formed on the upper side of the ratchet 58 is located at the end of the guide hole 62 formed in the switch cover 52 so that the ratchet 58 is the switch housing 50. ) Will no longer protrude from

Thereafter, when the handle is rotated in the counterclockwise direction, the ratchet 58 is engaged with the cancel cam 82 and rotates in a clockwise direction with the transfer protrusion 70 as a hinge point, and then at the cancel cam 82. When it is detached, it is rotated back to its original position by the elastic force of the ratchet spring 60 formed on the switch cover 52.

Here, when the ratchet 58 rotates in the clockwise direction, the locking protrusions 64 formed on both sides of the upper portion of the switch bracket 54 constrain the rotation of the ratchet 58 in the counterclockwise direction. The ratchet 58 does not rotate the switch bracket 54 so that the switch bracket 54 is still rotated counterclockwise.

In addition, since the transfer protrusion 70 is formed in a semi-cylindrical shape, the transfer protrusion 70 is in surface contact with the guide hole 62, and the ratchet 58 is rotated to its original position. 70 is resisted, and the rotational speed and the strength of the ratchet 58 applied to the locking protrusion 64 formed on the switch bracket 54 are reduced so that the ratchet 58 is applied to the locking protrusion 64. Friction noise due to impact is reduced.

Then, when the rotation of the car is completed and the handle shaft 80 is rotated in the clockwise direction, the ratchet 58 is subjected to the force to rotate in the counterclockwise direction by the cancel cam 82, in this case Since the counterclockwise rotation of the ratchet 58 is constrained by the locking protrusion 64 formed on the switch bracket 54, when the cancel cam 82 continues to rotate, the ratchet 58 is rotated. The locking protrusion 64 is pushed out to rotate the switch bracket 54 and the switch lever 56 connected thereto to a neutral position.

When the switch lever 56 is moved to the neutral position in this way, the switch circuit is changed to turn off the left turn indicator.

In addition, when the car is to turn right, as shown in FIG. 7, the switch lever 56 is rotated in the clockwise direction, the operation principle of which is the same as that of turning the car to the left.

As such, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments are to be understood as illustrative in all respects and not as restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

The turn signal switch of the vehicle according to the present invention configured as described above forms a conveying protrusion in a semi-cylindrical shape to make a surface contact with the guide hole, and the conveying protrusion by the surface contact of the guide hole and the conveying protrusion during the rotation of the ratchet in place. The resistance to resistance is reduced, the rotation speed and strength of the ratchet is reduced, thereby reducing the friction noise caused by the impact of the ratchet on the locking projection of the switch bracket.

In addition, by forming a gap at a predetermined interval between the ratchet and the locking protrusion formed on the upper side of the switch bracket so that the ratchet does not hit the locking protrusion when the ratchet is rotated in the original position, the ratchet is prevented from hitting the locking protrusion when the ratchet rotates. There is an effect that can minimize the wear of the cheat and locking projections.

Claims (3)

A switch housing having a switch circuit therein and having an open top; A switch cover coupled to an opening of the switch housing and having a guide hole formed at one side thereof; A switch bracket installed in the switch housing and installed to rotate about a hinge point formed at one side of the switch housing; A ratchet provided between the switch cover and the switch bracket to move the switch bracket to a neutral position after completion of a change of direction; A pair of locking protrusions formed on both sides of the switch bracket to allow the ratchet to push the switch bracket to a neutral position; A guide protrusion protruding from the switch housing and then reinserted when the rotation of the vehicle is completed and the switch bracket is in a neutral position; A switch lever connected to the switch bracket and configured to operate the switch; A latching jaw formed on the lower side of the ratchet such that the ratchet is reciprocated along the guide protrusion; A transfer protrusion for inserting the ratchet into the guide groove formed in the switch cover so as to perform left and right reciprocating only; And a ratchet spring configured to elastically install the ratchet on the switch cover. The guide hole formed in the switch cover is formed in a rectangular shape and the switch lever direction of the rectangular shape is formed in a semi-circular shape, the transfer projection formed on the upper side of the ratchet and the handle shaft side of the guide hole formed in the switch cover Turn signal switch of a vehicle, characterized in that formed in a semi-cylindrical shape to achieve a surface contact. The method of claim 1, The semi-cylindrical conveying projection is a turn signal switch of a vehicle, characterized in that the bent portion is formed on the side surface portion of the handle shaft in contact with the guide hole. The method of claim 1, The turn signal switch of the vehicle, characterized in that the gap formed at a predetermined interval between the ratchet and the locking projection formed on the upper side of the switch bracket so that the ratchet does not hit the locking projection when the ratchet is rotated.

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