KR101866121B1 - Multi function switch unit for vehicle - Google Patents

Multi function switch unit for vehicle Download PDF

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Publication number
KR101866121B1
KR101866121B1 KR1020170012210A KR20170012210A KR101866121B1 KR 101866121 B1 KR101866121 B1 KR 101866121B1 KR 1020170012210 A KR1020170012210 A KR 1020170012210A KR 20170012210 A KR20170012210 A KR 20170012210A KR 101866121 B1 KR101866121 B1 KR 101866121B1
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KR
South Korea
Prior art keywords
cancel cam
contact
cam
block
moving block
Prior art date
Application number
KR1020170012210A
Other languages
Korean (ko)
Inventor
권순학
장동민
정은식
주성호
Original Assignee
엘에스오토모티브테크놀로지스 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0076—Switches therefor
    • B60Q1/0082—Switches therefor mounted on the steering wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q3/00—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors
    • B60Q3/20—Arrangement of lighting devices for vehicle interiors; Lighting devices specially adapted for vehicle interiors for lighting specific fittings of passenger or driving compartments; mounted on specific fittings of passenger or driving compartments
    • B60Q3/283—Steering wheels; Gear levers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/005—Electro-mechanical devices, e.g. switched
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H25/00—Switches with compound movement of handle or other operating part
    • H01H25/04—Operating part movable angularly in more than one plane, e.g. joystick
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2221/00—Actuators
    • H01H2221/008—Actuators other then push button
    • H01H2221/012—Joy stick type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/026—Car

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)
  • Switches With Compound Operations (AREA)

Abstract

The present invention is to provide a vehicular multi function switch unit which can reduce the occurrence of noise due to a collision between parts when a return function is operated after a turn signal operation. The vehicular multi function switch unit according to the present invention comprises a housing coupled to a steering column side, a lever switch protrudingly mounted on one side of the housing and rotated for a predetermined interval, a moving block disposed in the housing and moving and rotating with the lever switch, a cancel cam rotatably installed in the housing to move the rotated and moved moving block in a restoration direction in accordance with the operation state of the steering wheel, and a locking block coupled to the moving block so that the cancel cam comes into contact and presses the moving block. The locking block includes a block body having a cancel cam contact surface with which one side of the cancel cam is in contact and an elastic buffering portion protruding from the cancel cam contact surface so that the impact attributable to a collision with the cancel cam can be mitigated in contact with the cancel cam ahead of the cancel cam contact surface during cancel cam rotation.

Description

MULTI FUNCTION SWITCH UNIT FOR VEHICLE [0002]

The present invention relates to a multi-function switch unit for a vehicle, and more particularly, to a multi-function switch unit for a vehicle which can reduce the occurrence of noise due to collision between parts due to a steering wheel operation after a turn signal operation of a lever switch.

Typically, the vehicle steering wheel assembly includes a steering wheel, a steering column, a steering wheel connector assembly, a multifunction switch, and the like. The steering wheel is for the driver to set the steering direction, and the rotation of the steering wheel by the driver is transmitted to the wheel through the steering column to set the steering angle of the vehicle.

On the other hand, a vehicle such as an automobile has a function as a variety of convenience means for enabling a user to provide a more stable and comfortable running state beyond a function as a moving means. Accordingly, the vehicle is equipped with various convenience facilities and various switches for operating and controlling the switches. In consideration of the operability of the driver, various switches tend to be integrated in the steering wheel assembly.

For example, a steering wheel assembly of a currently produced vehicle is provided with a window switch for opening and closing a window, a steering light switch for turning on or off a steering light, an audio switch for driving audio, and a wiper switch for driving a wiper.

The multifunction switch includes a light, a fog lamp, a wiper, various audio apparatuses, and a vehicle window switch so that the driver can increase the operability of various apparatuses so that the front attention is not lost even during operation of various apparatuses. Such a multifunction switch may be embodied as a button switch on the top of the steering wheel or as a lever switch on the side of the steering wheel. The multifuncation switch attenuates the return force of the turn signal lever step by step at a plurality of positions when the turn signal lever returns to the neutral position, thereby preventing the overrun of the turn signal lever and the return signal of the turn signal lever.

Fig. 1 schematically shows a conventional multi-function switch unit for a vehicle, and Fig. 2 shows a conventional multi-function switch unit for a vehicle with a cover removed.

1 and 2, a conventional multi-function switch unit for a vehicle includes a housing 110, a guide bush 120 coupled with a steering column passing through the housing 110, A moving block 140 which is coupled to the lever switch 130 and rotates together with the lever switch 130 inside the housing 110 and a hook 140 which is coupled to one surface of the moving block 140, And a cancel cam 160 disposed between the engaging member 150 and the guide bush 120. [

The housing 110 includes a cover 111 through which the steering shaft of the steering column passes and a body portion 112 coupled with the cover 111 to which the moving block 140 and the cancel cam 160 are disposed . The cover 111 rotatably supports the rotation axis of the moving block 140 and movably supports the rotation axis of the cam follower cam 160. A lever switch 130 is rotatably inserted into the side surface of the housing 110.

The guide bush 120 is engaged with the steering shaft passing through the housing 110 and can be brought into contact with one end of the cancel cam 160 through rotation. The guide bush 120 rotates by the operation of the driver after the turn signal operation and contacts the cancel cam 160 when the direction of the vehicle is changed to rotate the can cam 160.

The lever switch 130 includes an operation lever 131 rotatably disposed on a side surface of the housing 110 and a lever 130 connected to the operation lever 131 and the other end inserted into the housing 110, And includes a lever shaft 132 coupled thereto. The lever switch 130 operates the turn signal by rotating by the operation of the driver.

The moving block 140 coupled to the lever shaft 132 is rotated together with the operation of the lever switch 130 of the driver. At this time, the engaging member 150 coupled to the moving block 140 rotates together, and one end of the both ends of the engaging member 150 approaches the vicinity of the cancel cam 160. The cancel cam 160 is rotated by the rotation of the guide bush 120 by the steering column while one end of the cancel cam 160 is in contact with the guide bush 120, and the other end thereof comes into contact with the engaging member 150. Therefore, the cancel cam 160 rotates together with the rotation of the steering column, and moves the lever switch 130 to the neutral position by rotating the moving block 140 in the direction opposite to the rotating direction during the turn signal operation. This operation is called return function.

Such a conventional multi-function switch unit for a vehicle is configured such that when the steering wheel rotates in the direction in which the lever switch 130 is operated in a state in which the lever switch 130 is rotated to generate a turn signal, A problem arises in that noise is generated due to the collision of the motor 160. Also, the engaging member 150 or the cancel cam 160 may be damaged by an impact when the engaging member 150 and the cancel cam 160 collide with each other.

In order to solve such a problem, conventionally, a method of preventing noise by applying a lubricant to a collision generating portion of a vehicle multi-function switch unit has been used. However, this method causes a problem that the lubricating oil flows down due to high temperature or the lubricating oil is lost when the lubricating oil is used for a long time.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and it is an object of the present invention to provide a steering apparatus capable of reducing the occurrence of noise due to a collision between components due to operation of a steering wheel after a turn signal operation of a lever switch, And an object of the present invention is to provide a multi-function switch unit for a vehicle.

According to an aspect of the present invention, there is provided a multi-function switch unit for a vehicle, the switch unit being rotatably coupled to a steering column so as to generate a turn signal of the vehicle, A housing coupled to the steering column; A lever switch protrudingly mounted on one side of the housing and rotated for a predetermined interval; A moving block disposed inside the housing and rotating together with the lever switch; A cancel cam rotatably installed in the housing so as to move the moving block rotated in accordance with an operation state of the steering wheel in a direction in which the moving block is returned to the original position; A block body coupled to the moving block so as to press the moving block to contact the canceling cam, the block body having a canceling cam contact surface with which one side of the canceling cam contacts, And a latching block having a contact buffering part protruding from the contact surface of the canceling cam so as to buffer an impact caused by a collision with the canceling cam by making contact with the canceling cam.

The contact buffer of the latch block may be bent from the end of the block body toward the cancel cam.

And the angle at which the contact buffer part is bent from the cancel cam contact surface is an obtuse angle.

The engagement block is elastically deformed to come into contact with the cancel cam before the contact buffer when the cancel cam is rotated, so that the engagement block is inclined with respect to the contact buffer so that the impact due to the collision with the cancel cam can be doubly buffered And an auxiliary cushioning portion.

It is preferable that the angle at which the contact buffer portion is bent from the cancel cam contact surface is an obtuse angle and the auxiliary buffer portion forms an obtuse angle with the cancel cam contact surface.

The touch surface contacting the cancel cam of the contact buffer part may be curved.

And the contact buffering portion may be formed on the cancel cam contacting surface so as to be inclined from the cancel cam contacting surface.

The contact buffer may extend from the cancel cam contacting surface toward a portion where the steering column is located.

And the contact buffer part extends from the cancel cam contact surface toward a portion where the lever switch is located.

In the multi-function switch unit for a vehicle according to the present invention, when the locking block of the moving block collides with the canceling cam, the contact buffer of the locking block first contacts the canceling cam, thereby reducing the impact occurring at the time of collision. Further, by the action of the contact buffer, it is possible to reduce the noise generated when the cam block collides with the engagement block of the moving block.

In addition, the multi-function switch unit for a vehicle according to the present invention can reduce the impact due to collision between components during return operation of returning the lever switch to the neutral position, thereby reducing parts damage and shortening the service life due to long use.

Fig. 1 schematically shows a conventional multi-function switch unit for a vehicle.
Fig. 2 shows a conventional multi-function switch unit for a vehicle with a cover removed.
3 schematically shows a multi-function switch unit for a vehicle according to an embodiment of the present invention.
4 shows a latching member of a multi-function switch unit for a vehicle according to an embodiment of the present invention.
5 is a view for explaining the operation of the multi-function switch unit for a vehicle according to an embodiment of the present invention.
6 to 8 show various modifications of the latching member provided in the multi-function switch unit for a vehicle according to the present invention.

Hereinafter, a multi-function switch unit for a vehicle according to the present invention will be described in detail with reference to the drawings.

FIG. 3 is a schematic view showing a multi-function switch unit for a vehicle according to an embodiment of the present invention, FIG. 4 is a view showing a retaining member of a multi- function switch unit for a vehicle according to an embodiment of the present invention, Function switch unit for a vehicle according to one embodiment of the present invention.

3 to 5, a multi-function switch unit 200 for a vehicle according to an embodiment of the present invention includes a housing 210, a guide bush 220 coupled to a steering column passing through the housing 210, A lever switch 230 rotatably installed on the side of the housing 210 and a moving block 240 coupled to the lever switch 230 and rotating together with the lever switch 230 inside the housing 210 An engaging member 250 coupled to one surface of the moving block 240 and a cancel cam 260 disposed between the engaging member 250 and the guide bush 220.

The housing 210 is coupled to the steering column (not shown) so as to be positioned below the steering wheel (not shown). The housing 210 may have a structure in which a through hole is provided in the middle so that the steering shaft of the steering column can pass through and a guide bush 220 coupled to the steering shaft may be disposed in the through hole of the housing 210 . The housing 100 may include an upper housing and a lower housing such that a receiving space is formed therein.

The guide bush 220 may be engaged with the steering shaft passing through the housing 210 to rotate together with the steering shaft, and may be contacted with one end of the cancel cam 260 through the rotational movement. The guide bush 220 may be rotated by the operation of the driver after turning the turn signal to contact the cancel cam 260 to change the direction of the vehicle, thereby rotating the cancel cam 260. On the outer circumferential surface of the guide bush 10, a pressing protrusion 221 which is in contact with the cancel cam 260 and can press the cancel cam 260 is protruded according to the rotating operation state of the steering wheel.

The lever switch 230 is rotatably disposed on the side surface of the housing 210 and can generate a turn signal by operation by the driver. The lever switch 230 can take a structure capable of operating a lighting device outside the vehicle or a convenience device inside the vehicle in addition to the turn signal. The lever switch 230 includes a lever shaft 231 coupled to the moving block 240, an operation lever 232 coupled to the lever shaft 231 for user operation and disposed outside the housing 210, And a rotary switch 233 coupled to an end of the lever 232. The rotary switch 233 may rotate with the longitudinal direction segment of the lever switch 230 as the rotation center axis to generate the switching signal. The lever switch 230 can rotate in a vertical direction with a line segment parallel to the steering shaft as a rotation center axis, and a line segment perpendicular to the steering shaft on a virtual plane perpendicular to the steering wheel And can be tilted at a certain angle in the front-rear direction. In addition, the lever switch 230 can take various structures that can generate various switching signals including a turn signal.

The moving block 240 is rotatably installed inside the housing 210 by a rotation shaft 242 so as to rotate together with the lever switch 230. One end of the moving block 240 is engaged with the lever shaft 231 of the lever switch 230 and the other end of the moving block 240 is disposed on the canceling cam 260 side to form a free end.

The locking member 250 is coupled to the other end of the moving block 240 and moves together with the moving block 240. The latching member 250 includes a support body 251 coupled to one surface of the moving block 240 and a pair of latching blocks 252 disposed at both ends of the support body 251. The engaging block 252 protrudes from one surface of the support body 251 so as to be in contact with the cancel cam 260. [

The latching block 252 has a block body 253 and a contact buffering part 255. The block body 253 has a shape in which the width gradually decreases from the lever switch 230 side toward the guide bush 220 side. On the inside of the block body 253, a cancel cam contact surface 254 capable of contacting the cancel cam 260 is provided.

The contact buffering part 252 is configured to move the cancel cam 260 from the cancel cam contacting surface 254 so as to contact the cancel cam 260 before the cancel cam contacting surface 254 of the block body 253 when the cancel cam 260 rotates . The contact buffering part 255 contacts the canceling cam 260 before the block body 253, so that the impact due to the collision with the canceling cam 260 can be buffered. The contact buffering part 255 may have a rigid structure such as the block body 253 so as not to be deformed even if the canceling cam 260 is touched. Optionally, the contact buffer 255 may take an elastic strain buffer structure that is somewhat elastically deformed in the set range.

The contact buffering part 255 is provided at the end of the block body 253 so as to be gently bent toward the canceling cam 260. It is preferable that the angle at which the contact buffering portion 255 is bent from the cancel cam contacting surface 254 of the block body 253 is an obtuse angle. When the contact buffering part 255 makes an angle of inclination? From the cancel cam contacting surface 254 to an obtuse angle, the cancel cam 260 when the canceling cam 260 rotates contacts the contact buffering part 255 more smoothly and smoothly It is possible to contact the cancel cam abutment surface 254 of the block body 253, thereby more reliably reducing the impact due to the collision of the cancel cam 260. [ At the end of the contact buffering part 255, a touch surface 256 which comes into contact with the cancel cam 260 is provided. The touch surface 256 may be a straight or gently curved surface. When the touch surface 256 is a curved surface, the cancel cam 260 may rotate in contact with the cancel surface 254 more smoothly.

The cancel cam 260 is disposed between the guide bush 220 and the engaging member 250 to provide a return signal after providing a turn signal. That is, in the state where the moving block 240 is rotated by the turning operation of the lever switch 230, the canceling cam 260 is rotated by the guide bush (not shown) so that the moving block 240 can be returned to the original position 220 and the moving block 240 simultaneously. The cancel cam 260 may be connected to an elastic member (not shown) that applies an elastic force to the cancel cam 260 so that the cancel cam 260 rotated by the guide bush 220 can be returned to the original position.

The cancel cam 260 is rotatably coupled to the housing 210 by a rotation shaft 264. [ The cancel cam 260 includes a guide bush contact portion 261 extending from the rotation shaft 264 toward the guide bush 220 so as to be in contact with the guide bush 220, And a locking block contact portion 262 extending from the rotation axis 264 toward the lever switch 230 so as to be movable. The cancel cam 260 rotates about the rotation axis 264 when the pressing projection 221 of the guide bush 220 contacts the guide bush contacting portion 261 so that the engaging block contact portion 262 is engaged with the engaging member 250 Of the two latching blocks 252 of the first and second latching blocks. That is, the moving block 240 can be pressed in the return direction while the engaging block contact portion 262 is in contact with the cancel cam contacting surface 254 of the engaging block 252. When the cancel cam 260 rotates about the rotation axis 264, the cancel cam 260 first contacts the contact buffer 252 of the latch block 252 according to the rotation angle thereof and then contacts the cancel cam contact surface 254 .

The function of the vehicle multi-function switch unit 200 is as follows.

When the lever switch 230 is rotated by the driver, the moving block 240 also rotates together with one of the two engaging blocks 252 disposed on the moving block 240 moving to the cancel cam 260 It gets closer. The guide bush 220 rotates in the same direction as the steering wheel when the steering wheel rotates in a direction opposite to the direction of rotation of the lever switch 230 in this state so that the pressing projection 221 of the guide bush 10, Contacts the guide bush contact portion 261 of the cancel cam 260 to rotate the cancel cam 260. [ In this process, the engaging block contact portion 262 of the cancel cam 260 presses the engaging block 252 of the moving block 240 to rotate the moving block 240 so that the lever switch 230 can be returned to the original position .

When the steering wheel is rotated in the same direction as the lever switch 230 in a state in which the lever switch 230 is rotated, the pressing protrusion 221 of the guide bush 220 contacts the guide bush contacting portion 261, the cancel cam 260 is rotated in the direction in which the stop block contact portion 262 moves away from the adjacent stop block 252, so that the movable block 240 is not moved. In this state, when the guide bush 220 further rotates and the pressing protrusion 221 is detached from the cancel cam 260, the cancel cam 260 is returned to the neutral position by the elastic force of the elastic member, The engaging block contact portion 262 of the engaging block 252 collides with the engaging block 252.

The multifunctional switch unit 200 for a vehicle according to the present invention is configured such that the cancellation cam 260 is rotated in the same direction as the canceling cam 260, The contact buffering part 255 of the stop block 252 comes into contact with the cancel cam 260 before the block body 253 to reduce the impact generated in the collision. That is, when the cancel cam 260 rotates, the stop block contact portion 262 of the cancel cam 260 contacts the contact buffer portion 255 of the stop block 252 first according to the rotation angle of the cancel cam 260 And then comes into contact with the cancel cam contact surface 254 of the block body 253. Therefore, the shock caused by the collision between the latch block 252 and the cancel cam 260 can be buffered by the action of the contact buffering part 255. [ Also, the noise generated when the engaging member 250 collides with the cancel cam 260 can be reduced by the action of the contact buffering part 255.

Hereinafter, the operation of the vehicle multi-function switch unit 200 according to the present invention will be described in more detail with reference to Fig.

5, when the lever switch 230 is operated in the upward direction when the right turn indicator light among the turn signals is operated and the latch member 250 is rotated by the rotation of the lever switch 230, The one-side locking block 251 of the cancel cam 260 approaches the cancel cam 260 side and the guide bush contacting portion 261 of the cancel cam 260 contacts the pressing protrusion 221 of the guide bush 220 (a).

At this time, when the driver rotates the steering wheel in the right rotation direction, the guide bush 220 rotates together, and the cancel cam 260 contacting the guide bush 220 rotates in the direction opposite to the rotation direction of the guide bush 220 do. Thus, the engaging block contact portion 262 of the cancel cam 260 is moved away from the adjacent engaging block 252 (FIG.

When the driver further rotates the steering wheel in the same direction, the pressing projection 221 of the guide bush 220 moves away from the guide bush contacting portion 261 of the cancel cam 260, To the neutral position. At this time, the engagement block contact portion 262 of the cancel cam 260 collides with the engagement block 251 of the engagement member 250 (c).

The cancel cam 260 is brought into contact with the outer circumferential surface of the guide bush 220 again when the steering wheel continues to rotate in the direction of the right turning and is moved in the direction opposite to the steering wheel by the pressing protrusion 221 of the guide bush 220 And is spaced apart from the adjacent engagement block 252 again (e).

In this state, when the guide bush 220 further rotates by the rotation of the steering wheel, the guide bush 220 is released again from the cancel cam 260, and the cancel cam 260 is returned to the neutral position again by the elastic member. At this time, the engaging block contact portion 262 of the cancel cam 260 again collides with the engaging block 251 of the engaging member 250 (f).

When the engaging member 250 and the cancel cam 260 collide with each other, the engaging block contacting portion 262 of the cancel cam 260 first contacts the contact buffering portion 255 of the engaging block 252, Cam contact surface 254 of the cam followers 253 and 253. The impact due to the collision between the latch block 252 and the cancel cam 260 can be buffered by the action of the contact buffer 255 and the noise generated when the latch member 250 and the cancel cam 260 collide can be reduced .

The following table shows experimental results showing the noise reduction effect of the multi-function switch unit 100 for a vehicle according to the present invention in comparison with the prior art.

Figure 112017009122804-pat00001

Noise Measurement - Less than 36 dB, Noise Level Reference - Frequency Weighting: A, Time Weighting: Fast, Mounting Condition - Noise Measurement, Rotation Method Condition at 200mm from the end of the wheel end - T / SIGNAL condition Wheel rotation, rotation speed condition - about 60RPM, rotation method - manual (rotation error 10%), measuring condition - noise tester.

In the above table, it can be seen that the noise is small in the multi-function switch unit 100 for a vehicle according to the present invention even when the grease is eliminated.

6 to 8 illustrate various modified examples of the latching member provided in the multi-function switch unit for a vehicle according to the present invention.

6 includes a support body 351 coupled to one surface of a moving block 240 (see FIG. 3), and a pair of engagement blocks (not shown) disposed at both ends of the support body 351 352). The engaging block 352 protrudes from one surface of the support body 351 so as to be in contact with the cancel cam 260. [

The latching block 352 has a block body 353, a contact buffer 355, and an auxiliary buffer 357. The block body 353 has a shape in which the width becomes narrower toward the guide bush 220 (see FIG. 3) side from the lever switch 230 (see FIG. 3). On the inside of the block body 353, a cancel cam contact surface 354 capable of contacting the cancel cam 260 is provided.

The contact buffering part 355 is provided with a cancel cam 260 from the cancel cam contact surface 354 so as to contact the cancel cam 260 before the cancel cam contact surface 354 of the block body 353 when the cancel cam 260 rotates. . The contact buffering part 355 contacts the canceling cam 260 before the block body 353, so that the impact due to the collision with the canceling cam 260 can be buffered. The contact buffer 355 is provided at the end of the block body 353 so as to be gently bent toward the cancel cam 260. The angle at which the contact buffer 355 is bent from the cancel cam contact surface 354 of the block body 353 is preferably an obtuse angle.

The auxiliary buffering portion 357 is disposed inside the contact buffering portion 355 at a distance from the contact buffering portion 355 and inclined with respect to the cancel cam contacting surface 354. [ The auxiliary buffering portion 357 is arranged to be inclined toward the engagement block contact portion 262 of the cancel cam 260 so as to be in contact with the canceling cam 260 before the contact buffering portion 355. [ The auxiliary buffering portion 357 comes into contact with the canceling cam 260 before the contact buffering portion 355 when the canceling cam 260 rotates and is elastically deformed. Therefore, the latching member 350 according to the present embodiment can double-buffer the impact due to the collision with the cancel cam 260 through the contact buffering part 355 and the auxiliary buffering part 357. It is preferable that the auxiliary buffer 357 also forms an obtuse angle with the cancel cam contact surface 354. In this case, when the cancel cam 260 contacts the auxiliary buffer 357, the auxiliary buffer 357 is more smooth and smooth As shown in Fig.

7 includes a support body 451 coupled to one side of the moving block 240 and a pair of engagement blocks 452 disposed at both ends of the support body 451. [ The engaging block 452 protrudes from one surface of the supporting body 451 so as to be in contact with the cancel cam 260.

The latching block 452 has a block body 453 and a contact buffer 455. The block body 453 has a shape in which the width becomes narrower from the lever switch 230 side toward the guide bush 220 side. Inside the block body 453, a cancel cam contact surface 454 capable of contacting the cancel cam 260 is provided.

The contact buffer 455 is provided in the middle of the cancel cam contact surface 454 so as to be in contact with the cancel cam 260 before the cancel cam contact surface 454 of the block body 453 when the cancel cam 260 rotates, And protrudes from the contact surface 454 toward the cancel cam 260. [ The contact buffering part 455 contacts the canceling cam 260 before the block body 453, so that the impact due to the collision with the canceling cam 260 can be buffered. The contact buffer 455 is formed to extend from the cancel cam contact surface 454 on the cancel cam contact surface 454 in an inclined manner. Specifically, the contact buffer 455 has a rod shape extending from the cancel cam contact surface 454 toward the portion where the steering column is located. The contact buffer 455 may be changed into various other forms such as a curved rod shape other than a straight rod shape. The contact buffering part 455 may take a rigid structure so as not to be deformed even when the cancel cam 260 is contacted, and may adopt an elastic deformation buffering structure that is somewhat elastically deformed in a set range.

8 includes a support body 551 coupled to one side of the moving block 240 and a pair of engagement blocks 552 disposed at both ends of the support body 551. The support body 551 includes a support body 551, The engaging block 552 protrudes from one side of the supporting body 551 so as to be in contact with the cancel cam 260.

The latching block 552 has a block body 553 and a contact buffer 555. The block body 553 has a shape in which the width becomes narrower from the lever switch 230 side toward the guide bush 220 side. Inside the block body 553, a cancel cam contact surface 554 capable of contacting the cancel cam 260 is provided.

The contact buffering part 555 is provided on the cancel cam contact surface 554 so as to contact the cancel cam 260 before the cancel cam contact surface 554 of the block body 553 when the cancel cam 260 rotates, And protrudes from the cam groove 554 toward the cancel cam 260. The contact buffering part 555 contacts the canceling cam 260 before the block body 553, so that the shock due to the collision with the canceling cam 260 can be buffered.

The contact buffer 555 is formed to extend from the cancel cam contact surface 554 on the cancel cam contact surface 554 in an inclined manner. Specifically, the contact buffer 555 has a rod shape extending from the cancel cam contact surface 554 toward the portion where the lever switch 230 is located. The contact buffer 555 may be changed into various other forms such as a curved rod shape other than a straight rod shape. The contact buffering part 555 may take a rigid structure so as not to be deformed even if the cancel cam 260 touches it, or may adopt an elastic deformation buffering structure that is somewhat elastically deformed in a set range.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Those skilled in the art will appreciate that numerous modifications and variations can be made in the present invention without departing from the spirit and scope of the appended claims.

200: Multifunction switch unit for vehicle
210: housing 220: guide bush
221: pressing projection 230: lever switch
231: Lever shaft 232: Operation lever
233: Rotary switch 240: Moving block
242, 264: rotation shaft 250, 350, 450, 550:
251, 351, 451, 551: Support body 252, 352, 452, 552:
253, 353, 453, 553: block body 254, 354, 454, 554:
255, 355, 455, 555: contact buffering part 256: touch surface
260: cancel cam 261: guide bush contact
262: latching block contact portion 357: auxiliary buffering portion

Claims (9)

A multifunctional switch unit for a vehicle, which is rotatably coupled to a steering column so as to generate a turn signal of a vehicle and operates to return to the original position in conjunction with the operation of the steering wheel, comprising: a housing coupled to the steering column; A lever switch protrudingly mounted on one side of the housing and rotated for a predetermined interval; A moving block disposed inside the housing and rotating together with the lever switch; A cancel cam rotatably installed in the housing so as to move the moving block rotated in accordance with an operation state of the steering wheel in a direction in which the moving block is returned to the original position; A block body coupled to the moving block so as to press the moving block to contact the canceling cam, the block body having a canceling cam contact surface with which one side of the canceling cam contacts, And a locking block having a contact buffer part protruded from the contact surface of the cancel cam so as to be able to buffer an impact caused by a collision with the cancel cam by contacting with the cancel cam,
Wherein the contact buffering portion of the latching block is bent from the end of the block body toward the canceling cam,
The engagement block is elastically deformed to come into contact with the cancel cam before the contact buffer when the cancel cam is rotated, so that the engagement block is inclined with respect to the contact buffer so that the impact due to the collision with the cancel cam can be doubly buffered Further comprising:
Wherein the angle at which the contact buffer portion is bent from the cancel cam contact surface is an obtuse angle and the auxiliary buffer portion forms an obtuse angle with the cancel cam contact surface.
delete The method according to claim 1,
Wherein the angle at which the contact buffering portion is bent from the cancel cam contact surface is an obtuse angle.

delete delete The method according to claim 1,
Wherein the touch surface contacting the cancel cam of the contact buffer part is curved.
The method according to claim 1,
Wherein the contact buffering portion is formed on the cancel cam contacting surface so as to be inclined from the cancel cam contacting surface.
A multi-function switch unit for a vehicle, which is rotatably coupled to a steering column so as to generate a turn signal of a vehicle, and operates to return to the original position in conjunction with the operation of the steering wheel, comprising: a housing coupled to the steering column; A lever switch protrudingly mounted on one side of the housing and rotated for a predetermined interval; A moving block disposed inside the housing and rotating together with the lever switch; A cancel cam rotatably installed in the housing so as to move the moving block rotated in accordance with an operation state of the steering wheel in a direction in which the moving block is returned to the original position; A block body coupled to the moving block so as to press the moving block to contact the canceling cam, the block body having a canceling cam contact surface with which one side of the canceling cam contacts, And a locking block having a contact buffer part protruded from the contact surface of the cancel cam so as to be able to buffer an impact caused by a collision with the cancel cam by contacting with the cancel cam,
Wherein the contact buffering portion is formed on the cancel cam contacting surface so as to be inclined from the cancel cam contacting surface,
Wherein the contact buffer extends from the cancel cam contact surface toward a portion where the steering column is located.
A multifunctional switch unit for a vehicle, which is rotatably coupled to a steering column so as to generate a turn signal of a vehicle and operates to return to the original position in conjunction with the operation of the steering wheel, comprising: a housing coupled to the steering column; A lever switch protrudingly mounted on one side of the housing and rotated for a predetermined interval; A moving block disposed inside the housing and rotating together with the lever switch; A cancel cam rotatably installed in the housing so as to move the moving block rotated in accordance with an operation state of the steering wheel in a direction in which the moving block is returned to the original position; A block body coupled to the moving block so as to press the moving block to contact the canceling cam, the block body having a canceling cam contact surface with which one side of the canceling cam contacts, And a locking block having a contact buffer part protruded from the contact surface of the cancel cam so as to be able to buffer an impact caused by a collision with the cancel cam by contacting with the cancel cam,
Wherein the contact buffering portion is formed on the cancel cam contacting surface so as to be inclined from the cancel cam contacting surface,
Wherein the contact buffer extends from the cancel cam contact surface toward a portion where the lever switch is located.
KR1020170012210A 2017-01-09 2017-01-25 Multi function switch unit for vehicle KR101866121B1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06127305A (en) * 1992-10-23 1994-05-10 Matsushita Electric Ind Co Ltd Cancellation device of turn signal switch
JPH0950735A (en) * 1995-08-07 1997-02-18 Niles Parts Co Ltd Cancel mechanism of turn signal switch for vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06127305A (en) * 1992-10-23 1994-05-10 Matsushita Electric Ind Co Ltd Cancellation device of turn signal switch
JPH0950735A (en) * 1995-08-07 1997-02-18 Niles Parts Co Ltd Cancel mechanism of turn signal switch for vehicle

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