KR20100090103A - A seat belt sensing apparatus for vehicle - Google Patents

A seat belt sensing apparatus for vehicle Download PDF

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Publication number
KR20100090103A
KR20100090103A KR1020090009397A KR20090009397A KR20100090103A KR 20100090103 A KR20100090103 A KR 20100090103A KR 1020090009397 A KR1020090009397 A KR 1020090009397A KR 20090009397 A KR20090009397 A KR 20090009397A KR 20100090103 A KR20100090103 A KR 20100090103A
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KR
South Korea
Prior art keywords
buckle
spring member
seat belt
hall sensor
disposed
Prior art date
Application number
KR1020090009397A
Other languages
Korean (ko)
Inventor
김성태
Original Assignee
현대모비스 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020090009397A priority Critical patent/KR20100090103A/en
Publication of KR20100090103A publication Critical patent/KR20100090103A/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
    • B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
    • 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
    • B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
    • B60R2022/4808—Sensing means arrangements therefor
    • B60R2022/4816—Sensing means arrangements therefor for sensing locking of buckle

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Buckles (AREA)

Abstract

PURPOSE: A device for sensing a seat belt wearing state for a vehicle is provided to improve safety of a passenger when the passenger uses an old buckle by enabling the user to replace the buckle. CONSTITUTION: A device for sensing a seat belt wearing state for a vehicle comprises a tongue(10), a buckle(20), a hall sensor(30), first and second spring members(40,70), a magnet member(50), an ejector(60). The tongue has a latch hole(12) in order to fix a seat belt. A latch guide(22) of the buckle is inserted into the latch hole of the tongue. The hall sensor transfers a wearing state of the buckle to an airbag control unit(90). The first spring member is arranged to be faced with the hall sensor. The magnetic member generates a current change. When a passenger wears the buckle, the ejector compresses the first spring member.

Description

Seat belt wearing apparatus for a vehicle {a seat belt sensing apparatus for vehicle}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat belt wearing detection apparatus for a vehicle, and more particularly, to a seat belt wearing detection apparatus for a vehicle that transmits a seat belt wearing abnormality to a passenger by changing a buckle inner shape.

In general, sensors for determining if seat belts are full are widely used to warn or warn passengers of automobiles to wear their seat belts.

Recently, airbags have been used in vehicles to enhance and supplement the protection provided by the seat belts.

The combination of the seat belt and the airbag is most effective when it is possible to determine whether the seat belt is actually used. When the seat belt is filled, the deployment of the airbag exerts maximum effect to protect the occupant wearing the seat belt.

1 is a view schematically showing the state before the buckle fastening of the seat belt wearing detection apparatus of the vehicle according to the prior art, Figure 2 is a simplified view of the state after the buckle fastening of the seat belt wearing detection apparatus of the conventional vehicle according to the prior art. One drawing.

As shown in Figure 1 and 2, the seat belt of the vehicle is mounted on the car seat to promote the safety of the driver and the occupant when the vehicle, the latch hole (2) on one side to fix the seat belt (not shown) The formed tongue 1 and the latch hole 2 of the tongue 1 are inserted to engage the buckle 3 having the latch guide 6 formed therein.

In addition, the inside of the buckle 3, the switch-type Hall sensor 8 and the buckle (3) is connected to the wire (9a) so as to transmit the presence or absence of the passenger buckle (3) to the airbag control device (9) A spaced apart left and right inside, at least one of the spring member 7 disposed to face the hall sensor 8 and the other side of the spring member 7 connected to the hall sensor 8; It is composed of a magnet member 5 provided to generate a current change in accordance with the distance to the hall sensor (8).

In addition, the vehicle is disposed by the ejector 4 which is disposed opposite to the spring member 7 and moves opposite to the inserting direction of the tongue 1 when the passenger wears the buckle 3 to compress the spring member 7. It has a structure fixed to the seat.

Looking at the operation of the seat belt wearing detection device of a vehicle according to the prior art, when pushing the tongue (1) into the buckle (3) while pushing the ejector (4) enters into the buckle (3).

At this time, as the magnet member 5 of the ejector 4 approaches the hall sensor 8 of the switch type, a change in current flowing through the hall sensor 8 occurs, and the change is caused by the wire 9a. It is possible to know whether or not the passenger seat belt is worn by the airbag control device 9 connected with the seat.

However, the seat belt wear detection apparatus of the related art has a problem in that the tension of the seat belt is weakened or the passenger is injured when the vehicle crashes due to the improper seat belt wearing.

The present invention has been made to solve the above-mentioned problems of the prior art, a vehicle that transmits the presence or absence of wearing abnormalities to the passengers by changing the internal structure of the buckle to weaken the seat belt tension or the driver's improper seat belt wearing due to the aging of the vehicle An object of the present invention is to provide a seat belt wearing detection device.

 Seat belt wearing detection device for a vehicle according to the present invention, the latch hole is formed on one side to secure the seat belt; A buckle with a latch guide formed to insert and engage the latch hole of the tongue; A hall sensor disposed inside the buckle and connected to a wire to transmit whether the buckle is worn or not to an airbag control device; A first spring member disposed inside the buckle and disposed to face the hall sensor; A magnet member disposed on the other side of the first spring member connected to the hall sensor and provided to generate a current change according to a distance from the hall sensor; An ejector disposed to face the first spring member, the ejector compressing the first spring member by moving in a direction opposite to the insertion direction of the tongue when the passenger wears the buckle; The second spring member is disposed to face the rear of the ejector in the buckle, and the ejector is configured to adjust the discrimination section according to the tension of the seat belt.

The second spring member generates a current by the Hall sensor for detecting the abnormal wearing of the seat belt, the airbag control device is formed with a plurality of determination section for the presence of the buckle.

The hall sensor is disposed in the longitudinal direction inside the buckle, characterized in that the straight shape.

The first spring member is spaced apart from the left and right inside the buckle, and at least one of the first spring members is disposed to face one side of the hall sensor.

The ejector is disposed opposite to the rear of the compression spring, and when the tongue and the buckle is coupled, the ejector is moved in the opposite direction of the inserting direction of the tongue to compress the first spring member.

        The present invention relates to a seat belt wearing detecting device for a vehicle, and a buckle provided to be inserted into a tongue, and a hall sensor disposed in the buckle and connected to a wire so as to transmit whether the buckle is worn or not to the airbag controller. And a first spring member disposed inside the buckle and disposed opposite to the hall sensor, and disposed at the other side of the first spring member connected to the hall sensor, to generate a current change according to a distance from the hall sensor. An ejector disposed opposite to the first spring member and disposed opposite to the insertion direction of the tongue when the buckle is worn by a passenger, to compress the first spring member, and to the rear of the ejector inside the buckle. A second spring member disposed to face each other and provided to adjust the discrimination section according to the tension of the seat belt; When qualified allows the passenger to wear the buckle or the buckle hayeoteul wearing loose the advantage of improving the safety of the passengers due to the seat belt buckle to derive the replacement and normal wear.

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

3 is a view schematically showing a state before the buckle fastening of the seat belt device according to the present invention, Figure 4 is a view showing a state briefly after the buckle fastening of the seat belt device according to the present invention.

As shown in Figures 3 and 4, the seat belt wearing detection device of a vehicle according to the present invention, the seat belt of the vehicle (not shown) is a vehicle seat (not shown) to promote the safety of the driver and the occupant when the vehicle A tongue 10 having a latch hole 12 formed at one side to fix the seat belt (not shown), and a latch guide 22 to insert and engage the latch hole 12 of the tongue 10. A formed buckle 20.

In addition, it is disposed inside the buckle 20, and includes a Hall sensor 30 is connected to the wire 80 to transmit the presence or absence of the buckle 20 of the passenger to the airbag control device (90).

In addition, the first spring member 40 disposed inside the buckle 20 and disposed to face the hall sensor 30, and the other side of the first spring member 40 connected to the hall sensor 30. And a magnet member 50 disposed at and arranged to generate a current change according to a distance from the hall sensor 30.

In addition, the seat belt wearing detection device of the vehicle according to the present invention, is disposed opposite to the first spring member 40, when the passenger is wearing the buckle 20 is moved in the opposite direction of the insertion direction of the tongue 10 is the first The ejector 60 compresses the spring member 40 and the back of the ejector 60 inside the buckle 20, and the ejector 60 is tensioned in the seat belt (not shown). The second spring member 70 is further provided to adjust the determination section (c) (d) (e) according to.

Here, the second spring member 70 generates a current by the Hall sensor 30 for detecting the abnormality of wearing of the seat belt (not shown), the airbag control device 90 is buckle 20 ), A plurality of discrimination sections (c) (d) (e) are formed.

In addition, the hall sensor 30 is disposed in the longitudinal direction inside the buckle 20, it is characterized in that the linear shape.

In addition, the first spring member 40 is disposed to the left and right spaced apart inside the buckle 20, at least one of the first spring member 40 is disposed so that one side thereof is opposed to the hall sensor 30.

In addition, the ejector 60 is disposed to face the rear of the first spring member 40 and is moved in the opposite direction of the insertion direction of the tongue 10 when the tongue 10 and the buckle 20 are coupled to each other. The first spring member 40 is compressed.

Looking at the operation of the present invention configured as described above are as follows.

As shown in Figures 3 and 4, the seat belt wearing detection device of the vehicle according to the invention, the seat belt of the vehicle (not shown) is a latch guide so that the latch hole 12 of the tongue 10 is inserted and coupled. It is provided with the buckle 20 in which the 22 was formed.

In addition, the seat belt wearing detection device of the vehicle is disposed in the interior of the buckle 20, the hall sensor for connecting the wire 80 and the transfer of the presence or absence of the wearing of the buckle 20 of the passenger to the air bag control device ( 30) is further provided.

Here, the hall sensor 30 transmits the presence or absence of seat belt wearing abnormality to the passenger by turning on or off the warning light, depending on whether the latch hole 12 of the tongue is inserted.

In addition, the seat belt wearing detection device of the vehicle is disposed in the buckle 20, the first spring member 40 is disposed to face the hall sensor 30, the first connected to the hall sensor 30 The magnet member 50 is disposed on the other side of the one spring member 40 and generates a current change according to the distance from the hall sensor 30.

In addition, the seat belt wearing detection apparatus of the vehicle according to the present invention, is disposed opposite to the first spring member 40, when the passenger wearing the buckle 20 is moved in the opposite direction of the insertion direction of the tongue (10) The ejector 60 compresses the spring member 40 and the back of the ejector 60 inside the buckle 20, and the ejector 60 is tensioned by the seat belt (not shown). The second spring member 70 is further provided to adjust the determination section (c) (d) (e) according to.

Here, the second spring member 70 generates a current by the Hall sensor 30 for detecting the abnormality of wearing of the seat belt (not shown), the airbag control device 90 is buckle 20 ), A plurality of discrimination sections (c) (d) (e) are formed.

In addition, the hall sensor 30 is disposed in the longitudinal direction inside the buckle 20, it is preferable to have a straight shape.

In addition, the first spring member 40 is disposed to the left and right spaced apart inside the buckle 20, at least one of the first spring member 40 is disposed so that one side of the first spring member (40) facing the hall sensor (30).

In addition, the ejector 60 is disposed to face the rear of the first spring member 40, and when the tongue 10 and the buckle 20 is coupled to the opposite direction of the insertion direction of the tongue 10 is moved The first spring member 40 is compressed.

Referring to FIGS. 3 and 4, the operation of the seat belt wearing detection apparatus for a vehicle according to the present invention is described in that the tongue 10 is advanced by the position of the ejector 60 and the latch guide 22 is moved by the latch guide 22. The latch hole 12 is fastened, and the first spring member 40 is preferably designed to be proportionally compressed by the pulling force (tension) of the seat belt (not shown).

At this time, the magnet member 50 is caused by the ejector 60 to approach the Hall sensor 30 of the linear shape in proportion to the change in the magnetic field to cause a current change, the current change is the airbag control device ( To pass).

In addition, when the passenger in the vehicle wears the seat belt (not shown) loosely or when the seat belt tension is weakened due to the aging of the seat belt, the magnet member 50 in the buckle 20 is connected to the hall sensor. 30 will be farther away.

At this time, the magnet member is moved to the discrimination section (d) position when the state of the buckle state due to the weakening of the seat belt tension in the determination section (c) when the normal buckle state, the current is the determination section when the normal buckle state It is preferable to design the current to flow to the airbag control device 90 slightly less than (c).

In addition, the role of the second spring member 70 serves to adjust the ejector 60 to come to the determination section (c) (d) (e) position according to the seat belt tension.

That is, the hall sensor 30 generates a current proportionally using the distance between the magnet member 50 and the hall sensor 30 so that the airbag controller 90 recognizes the buckle 20. It is preferable to design so that each discrimination section (c) (d) (e) can be recognized.

In addition, each determination section (c) (d) (e) corresponding to the determination section (c) when the normal buckle state, and the discrimination period (d) when the buckle state due to the weak seat belt tension And the non-buckle determination section (e).

In addition, although not shown, when the airbag control device 90 receives the buckle 20 information due to the weakening of the tension, the seat belt warning light (not shown) is periodically operated to give the passengers the tension of the buckle 20. Notify that there is a problem.

As a result, when the worn buckle 20 is worn or when the passenger loosens the buckle 20 for convenience, the seat belt warning light (not shown) is periodically activated to allow the passenger to replace and normally wear the buckle 20. By inducing to prevent abnormal restraint of the passenger by the seat belt (not shown) during the collision of the vehicle.

As described above, the present invention has been described with reference to the embodiments shown in the drawings, which are merely exemplary, and the present invention is not limited to the above embodiments and drawings, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention. This is possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1 is a view briefly showing a state before the buckle fastening of the seat belt device according to the prior art,

2 is a view briefly showing a state after the buckle fastening of the seat belt device according to the prior art,

3 is a view briefly showing a state before the buckle fastening of the seat belt device according to the invention,

Figure 4 is a simplified view showing a state after the fastening the buckle of the seat belt device according to the present invention.

<Explanation of symbols on main parts of the drawings>

       10: tongue 12: latch hole

20: buckle 22: latch guide

30: Hall sensor 40: first spring member

50: magnet member 60: ejector

     70: second spring member 80: wire

90: airbag control device

c, d, e: discrimination interval

Claims (5)

A tongue having a latch hole formed at one side to fix the seat belt; A buckle with a latch guide formed to insert and engage the latch hole of the tongue; A hall sensor disposed inside the buckle and connected to a wire to transmit whether the buckle is worn or not to an airbag control device; A first spring member disposed inside the buckle and disposed to face the hall sensor; A magnet member disposed on the other side of the first spring member connected to the hall sensor and provided to generate a current change according to a distance from the hall sensor; An ejector disposed to face the first spring member, the ejector compressing the first spring member by moving in a direction opposite to the insertion direction of the tongue when the passenger wears the buckle; And a second spring member disposed to face the rear of the ejector in the buckle and configured to adjust the discrimination section according to the tension of the seat belt. The method according to claim 1, The second spring member is a current generated by the Hall sensor for detecting the wearing abnormality of the seat belt, the seat belt wearing detection of the car is a plurality of determination section is formed in the airbag control device whether the buckle is worn Device. The method according to claim 1, The hall sensor is disposed in the longitudinal direction inside the buckle, seat belt wearing detection device of the vehicle, characterized in that the straight shape. The method according to claim 1, The first spring member is disposed left and right spaced apart inside the buckle, at least one of the first spring member is one side seat belt wearing detection device of the vehicle is disposed facing the hall sensor. The method according to claim 1, The ejector is disposed opposite to the rear of the first spring member, when the tongue and the buckle is coupled to move the opposite direction of the insertion direction of the tongue, the first spring member is worn, characterized in that the compression of the first spring member Device.
KR1020090009397A 2009-02-05 2009-02-05 A seat belt sensing apparatus for vehicle KR20100090103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090009397A KR20100090103A (en) 2009-02-05 2009-02-05 A seat belt sensing apparatus for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090009397A KR20100090103A (en) 2009-02-05 2009-02-05 A seat belt sensing apparatus for vehicle

Publications (1)

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KR20100090103A true KR20100090103A (en) 2010-08-13

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110861547A (en) * 2019-11-26 2020-03-06 安徽省阜阳市好希望工贸有限公司 Self-detection child safety seat
CN114829212A (en) * 2020-01-16 2022-07-29 瑞典雄霸安全制品有限公司 Safety belt buckle for safety belt in child restraint system
KR20240020014A (en) 2022-08-05 2024-02-14 이재완 Seat belt wear detection device for application to child car seats
KR20240044821A (en) 2022-09-29 2024-04-05 이재완 Smart car seat system to provide seating and seatbelt tightening

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110861547A (en) * 2019-11-26 2020-03-06 安徽省阜阳市好希望工贸有限公司 Self-detection child safety seat
CN110861547B (en) * 2019-11-26 2022-01-07 安徽省阜阳市好希望工贸有限公司 Self-detection child safety seat
CN114829212A (en) * 2020-01-16 2022-07-29 瑞典雄霸安全制品有限公司 Safety belt buckle for safety belt in child restraint system
KR20240020014A (en) 2022-08-05 2024-02-14 이재완 Seat belt wear detection device for application to child car seats
KR20240044821A (en) 2022-09-29 2024-04-05 이재완 Smart car seat system to provide seating and seatbelt tightening

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