KR20170052817A - Ball-sensor restriction/release structure available rapid locking - Google Patents

Ball-sensor restriction/release structure available rapid locking Download PDF

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Publication number
KR20170052817A
KR20170052817A KR1020150154714A KR20150154714A KR20170052817A KR 20170052817 A KR20170052817 A KR 20170052817A KR 1020150154714 A KR1020150154714 A KR 1020150154714A KR 20150154714 A KR20150154714 A KR 20150154714A KR 20170052817 A KR20170052817 A KR 20170052817A
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KR
South Korea
Prior art keywords
ball sensor
sensor
webbing
arm
present
Prior art date
Application number
KR1020150154714A
Other languages
Korean (ko)
Other versions
KR101738045B1 (en
Inventor
이현우
Original Assignee
현대자동차주식회사
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Priority to KR1020150154714A priority Critical patent/KR101738045B1/en
Publication of KR20170052817A publication Critical patent/KR20170052817A/en
Application granted granted Critical
Publication of KR101738045B1 publication Critical patent/KR101738045B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/32—Devices for releasing in an emergency, e.g. after an accident ; Remote or automatic unbuckling devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/32—Devices for releasing in an emergency, e.g. after an accident ; Remote or automatic unbuckling devices
    • B60R22/321—Devices for releasing in an emergency, e.g. after an accident ; Remote or automatic unbuckling devices using electric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/405—Belt retractors, e.g. reels self-locking in an emergency responsive to belt movement and vehicle movement

Abstract

The present invention relates to a seat belt retractor of a vehicle, and more specifically, relates to a ball sensor restricting/releasing structure to realize quick locking, modifying a shape and a structure of a female part and a leaf spring part in a ball sensor locking control structure of a seat belt retractor for improving quiver, so as to prevent excessively delayed operation of a locking function due to delayed release of the female part when webbing is withdrawn in emergency, thereby allowing quick locking. According to the present invention, a ball sensor restricting/releasing structure of a seat belt retractor of a vehicle including a sensor cover comprises: an inner cover part; an arm part having an opening part formed in a central part and mounted in the inner cover part through a spool to be rotated in accordance with the rotation of the spool; and a leaf spring to mount one side in the inner cover part and laid on a support part of the female part through the opening part.

Description

BALL-SENSOR RESTRICTION / RELEASE STRUCTURE AVAILABLE RAPID LOCKING [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat belt retractor for a vehicle, and more particularly, to a seat belt retractor for a seat belt retractor, And the locking function is prevented from being excessively delayed, thereby enabling fast locking.

When a person is aboard a vehicle, various safeguards are provided to reduce injury to persons aboard by collision with vehicles or other objects.

A representative example of the seat belt is a seat belt, and the seat belt of the vehicle is characterized by securing the chest and lower abdomen (or other regions, or more or less regions in some cases) of the person to the seat. Recently, a commonly used three-point seat belt is wound around a retractor and used by a passenger while adjusting the length. In such a case, a seat belt is put on the retractor so as not to be drawn out in an emergency such as an emergency stop or collision of the vehicle Locking function is locked together.

Also, due to the flow of the sensor, which is able to recognize such an emergency situation, a trembling sound is generated at the time of running, which may cause inconvenience to the user. In order to reduce this, Technology has been developed and applied to some models. However, the conventional structure that controls the locking function in this manner has a disadvantage in that the delay is excessively generated when the suppression of the sensor is released in an emergency.

1 shows an example of a conventional ball sensor suppression / release structure. As shown in the figure, a damper arm 20 is mounted on an inner cover portion 10 through a spool, It is possible to confirm that the plate spring 30 mounted to extend to the sensor cover 50 controls the flow of the ball sensor 40 through interlocking with the sensor cover 50.

When the webbing is pulled out, the damper arm 20 rotates due to rotation of the spool, thereby allowing the ball sensor 40 to flow. When the seat belt is worn, a slight The damper arm is moved back to the ball sensor flow restraining position due to the inflow of the webbing. In such a structure, the required travel distance until the damper arm is released during emergency withdrawal of the webbing is long, to be.

In addition, when the release of the damper arm 20 is delayed, the operation of the locking function of the retractor is delayed. Therefore, the above-mentioned problem is also important in terms of the safety of the user.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the conventional art and has a purpose of shortening the release time of the arm portion (damper arm) when canceling the flow restraint of the ball sensor due to a situation such as a vehicle collision.

Shortening the release time of the arm portion means that the locking function of the seat belt is operated more quickly. Therefore, the present invention ultimately has the purpose of safely protecting a person aboard the vehicle in the event of a vehicle collision or the like.

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

According to an aspect of the present invention, there is provided a ball sensor suppression / release structure for a vehicle seat belt retractor including a sensor cover, wherein an inner cover portion, an opening is formed in a central portion thereof, And a plate spring part mounted on the inner cover part through a spool and rotating according to rotation of the spool and a plate spring part mounted on the inner cover part through one of the openings and placed on the support part of the arm part And provides a ball sensor inhibit / release structure that can be quickly locked.

In the present invention, the support portions may be formed to have different thicknesses in the circumferential direction.

In the present invention, it is preferable that the thickness of the support portion in the direction in which the arm portion moves when the webbing is pulled out is formed to be thinner than the thickness in the opposite direction.

In the present invention, before the webbing is pulled out, the plate spring portion presses the sensor cover to suppress the flow of the ball sensor, and after the webbing is pulled out, the arm portion is rotated by the rotation of the spool and the plate spring is placed on the thicker support portion of the arm portion, So that the contact with the sensor cover is released and the flow restraint of the ball sensor is released.

In the present invention, it is preferable that the plate spring portion is formed in a bent shape on the other side so as to pass through the opening portion and be placed on the support portion.

According to an embodiment of the present invention, the leaf spring portion may be formed to have a curved side surface so as to be movable on the support portion.

According to the present invention, in the ball sensor retractor of the seat belt retractor, the arm portion is formed so as to have an opening at its central portion, and the plate spring portion is configured to be placed on the support portion through the opening portion of the arm portion, So that the lock function can be performed more quickly even with a smaller amount of rotation of the arm portion.

Therefore, according to the present invention, the rotation amount of the spool and the webbing withdrawing amount required for the operation of the locking function are small, and the ball sensor suppression / release structure of the existing seat belt retractor can be almost applied without applying new parts It is effective in terms of cost and weight.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a conventional ball sensor suppression / release structure. FIG.
FIG. 2A is a block diagram of a ball sensor suppression / release structure capable of fast locking when a webbing is not pulled out according to an embodiment of the present invention; FIG.
FIG. 2B is a cross-sectional view of a ball sensor suppression / release structure capable of fast locking in case the webbing is not pulled out according to an embodiment of the present invention. FIG.
FIG. 2C is an exemplary view showing the relationship between the support portion of the arm portion and the leaf spring portion when the webbing is not pulled out according to the embodiment of the present invention. FIG.
3A is a block diagram of a ball sensor suppression / release structure capable of fast locking when a webbing is taken out according to an embodiment of the present invention.
3B is a cross-sectional view of a ball sensor suppression / release structure capable of fast locking when a webbing is pulled out according to an embodiment of the present invention.
3C is an exemplary view showing the relationship between the support portion of the arm portion and the leaf spring portion when the webbing is pulled out according to the embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present description and claims should not be construed as limited to ordinary or dictionary meanings, and the inventor should properly interpret the concepts of the terms in order to describe their invention in the best way. It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise.

In the ball sensor 400 suppression / release structure of the seat belt retractor for a vehicle including the sensor cover 500, the shape and structure of the arm portion and the leaf spring portion are changed so that the release of the arm portion is delayed In order to solve the problem that the locking function is delayed excessively due to the delayed release of the ball sensor, the present invention is characterized in that the inner cover part 100 has an opening 220 formed at its central part, And a spool part 200 mounted on the support part 210 of the arm part through the opening part and mounted on the inner cover part 300. [ ). ≪ / RTI >

2A illustrates a configuration of a ball sensor suppression / release structure capable of fast locking when a webbing is not pulled out according to an embodiment of the present invention. FIG. FIG. 2C is a cross-sectional view of the ball sensor suppression / release structure capable of fast locking when the webbing according to the embodiment of the present invention is not pulled out. FIG. An illustrative view is shown. 3A illustrates a configuration of a ball sensor inhibiting / releasing structure capable of fast locking when a webbing is pulled out according to an embodiment of the present invention. In FIG. 3B, when a webbing is pulled out according to an embodiment of the present invention FIG. 3C is a cross-sectional view of a ball sensor inhibiting / releasing structure capable of fast locking, and FIG. 3C is a view illustrating an example of a relationship between a support portion of the arm portion and a leaf spring portion when the webbing is pulled out according to an embodiment of the present invention.

Referring to the drawings, the ball sensor suppression / release structure of the present invention includes an inner cover part 100, an arm part 200, and a leaf spring part 300 as in the conventional structure.

However, the arm portion 200 of the present invention is mounted to the inner cover portion 100 so as to be interlocked with the spool, so that the arm portion 200 is configured to rotate together with the spool when the user pulls or pulls the webbing. 300 are formed to pass through the opening 220 at the central portion thereof.

In the arm portion 200, a support portion 210 is formed on a circular arc rather than a side surface of the portion except for the opening 220, and the plate spring portion 300 is placed there. According to the present invention, when the arm portion is formed in a fan shape, the support portion has a curved circular arc shape. However, if necessary, the arm portion may have a rectangular or trapezoidal shape, and the support portion may have a straight line shape.

The thickness of the support portion 210 in the direction of movement of the arm portion 200 when the webbing is pulled out may be different from the thickness of the support portion 210 in the direction in which the arm portion moves It is preferable that it is formed to be thinner than the thickness of the film. This is because the plate spring portion 300 can be lifted or lowered according to the movement of the arm portion.

One end of the leaf spring part 300 is mounted on the inner cover part 100 and is placed on the support part 210 through the opening part 220 formed in the arm part 200. In this configuration, And the other side of the plate spring portion is formed in a bent shape. That is, the leaf spring portion is shaped like a ladle, and the bending or angular extent of the bent portion can be variously formed.

In addition, the leaf spring part 300 may have a curved side surface so as to move on the support part 210 according to the rotation of the arm part 200. It may be impossible to move in an angular shape or the movement may be delayed due to a latching phenomenon. Therefore, it is preferable to have the shape as described above for the purpose of the present invention.

As a result, according to the present invention, when the webbing of the seat belt is pulled out or when the user wears the seat belt, Does not actuate the locking function by restraining the movement of the ball sensor 400 by pressing the sensor cover 500 on the thin portion of the supporting portion 210. After the webbing of the seat belt is pulled out, As the arm portion 200 is rotated by the rotation, the plate spring portion is lifted up in the upward direction as the thickness of the support portion is placed on the thick portion, so that the contact with the sensor cover is released and the flow restraint of the ball sensor is released .

As a result, the present invention solves the problem that the conventional damper arm can not satisfy the North American regulations and the stability is not sufficient due to the delay of the function of the conventional damper arm. So that the locking function can be implemented.

In addition, the present invention can advantageously utilize the operating structure of the sensor as it is without adding new components to the ball sensor suppression / release structure applied to existing seat belt retractors, which is advantageous in terms of cost and weight.

While the present invention has been described with reference to the specific embodiments, it is to be understood that the invention is not limited thereto. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents. Various modifications and variations are possible.

10: Inner cover part
20: Damper arm
30: leaf spring
40: Ball sensor
50: Sensor cover
100: Inner cover part
200:
210: Support
220: opening
300: plate spring portion
400: Ball sensor
500: Sensor cover

Claims (6)

In a ball sensor suppression / release structure of a vehicle seat belt retractor including a sensor cover,
An inner cover portion;
An arm portion formed in the center of the opening portion and mounted on the inner cover portion through a spool and rotating according to rotation of the spool; And
A plate spring part mounted on the inner cover part on one side and placed on the support part of the arm part through the opening part; And a fast lockable ball sensor inhibit / release structure.
The method according to claim 1,
Wherein the support portions are formed to have different thicknesses in the circumferential direction.
3. The method of claim 2,
Wherein the support portion is formed such that the thickness of the support portion in a direction in which the arm portion moves when the webbing is pulled out is thinner than the thickness in the opposite direction.
The method of claim 3,
Before the webbing is pulled out, the plate spring portion presses the sensor cover to suppress the flow of the ball sensor,
After the webbing is pulled out, the arm portion is rotated by the rotation of the spool, and the plate spring is placed on the thicker support portion of the arm portion, so that the arm portion is lifted upwards and thereby the contact with the sensor cover is released, Wherein the ball sensor includes a plurality of ball sensors.
The method according to claim 1,
Wherein the plate spring portion is formed in a bent shape on the other side so as to penetrate through the opening portion and to be placed on the support portion.
The method according to claim 1,
Wherein the leaf spring part is formed in a curved side surface so as to be movable on the support part.
KR1020150154714A 2015-11-04 2015-11-04 Ball-sensor restriction/release structure available locking KR101738045B1 (en)

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KR1020150154714A KR101738045B1 (en) 2015-11-04 2015-11-04 Ball-sensor restriction/release structure available locking

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Application Number Priority Date Filing Date Title
KR1020150154714A KR101738045B1 (en) 2015-11-04 2015-11-04 Ball-sensor restriction/release structure available locking

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KR20170052817A true KR20170052817A (en) 2017-05-15
KR101738045B1 KR101738045B1 (en) 2017-05-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109177916A (en) * 2018-09-14 2019-01-11 延锋汽车智能安全系统有限责任公司 Seat belt retractor and safety belt assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109177916A (en) * 2018-09-14 2019-01-11 延锋汽车智能安全系统有限责任公司 Seat belt retractor and safety belt assembly

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KR101738045B1 (en) 2017-05-22

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