KR101738049B1 - Connection structure of buckle for seat belt - Google Patents

Connection structure of buckle for seat belt Download PDF

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Publication number
KR101738049B1
KR101738049B1 KR1020150166020A KR20150166020A KR101738049B1 KR 101738049 B1 KR101738049 B1 KR 101738049B1 KR 1020150166020 A KR1020150166020 A KR 1020150166020A KR 20150166020 A KR20150166020 A KR 20150166020A KR 101738049 B1 KR101738049 B1 KR 101738049B1
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KR
South Korea
Prior art keywords
wire
buckle
tension
seat belt
connection structure
Prior art date
Application number
KR1020150166020A
Other languages
Korean (ko)
Inventor
이태희
김용태
Original Assignee
현대자동차주식회사
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Publication date
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Priority to KR1020150166020A priority Critical patent/KR101738049B1/en
Application granted granted Critical
Publication of KR101738049B1 publication Critical patent/KR101738049B1/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
    • B60R22/18—Anchoring devices
    • B60R22/195—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type
    • B60R22/1952—Transmission of tensioning power by cable; Return motion locking means therefor
    • 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
    • B60R22/18—Anchoring devices
    • B60R22/22—Anchoring devices secured to the vehicle floor
    • 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
    • B60R22/18—Anchoring devices
    • B60R2022/1806—Anchoring devices for buckles
    • 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
    • B60R22/18—Anchoring devices
    • B60R22/195—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type
    • B60R2022/1957—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type characterised by electric actuators

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

The present invention relates to a buckle connection structure coupled to a seat belt of a vehicle for fastening the seat belt. More particularly, the buckle connection structure comprises a wire having one end connected to a buckle and the other end connected to a tension applying device to be movable with the buckle, and a plurality of fastening portions provided on a path of the wire so that the wire can pass through. The plurality of fastening portions are selectively fastened to each other or released from each other in accordance with a change in tension of the wire by the tension applying device. The buckle connection structure effectively prevents a submarine phenomenon and does not cause interference between a seat cushion and a seat back.

Description

CONNECTION STRUCTURE OF BUCKLE FOR SEAT BELT

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a connection structure of a buckle which is fastened to a seat belt of a vehicle and fastens the seat belt. More specifically, since a plurality of fastening portions are provided on a wire connected to the buckle, And a buckle connection structure for a seat belt capable of improving safety performance at the same time.

BACKGROUND ART [0002] Generally, a seat of a vehicle is installed in a vehicle to support a body of a passenger to reduce fatigue caused by running the vehicle and to provide a comfortable ride, and includes a seat cushion for supporting a hip portion of a passenger, And a seatback coupled to allow angle adjustment.

Such a seat is provided with a seat belt for ensuring the safety of the passengers. The seat belt installed on the vehicle is configured to restrain the occupant's body in the event of a vehicle collision to prevent secondary collision and to prevent the occupant from bouncing out of the vehicle while mitigating impact.

Such a seat belt is generally constituted by a belt webbing for restraining a passenger in a belt form, a retractor in which belt webbing is wound, and a buckle which is detachably inserted into a belt tongue engaged with a drawn-out end portion of the belt webbing.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a conventional buckle connection structure for a seat belt.

1, a buckle 1 for a conventional seat belt mounted on the back of a vehicle is connected to a rear floor 3 of the vehicle, and the buckle 1 and the rear floor 3 are made of a flexible material It is generally connected to the buckle webbing 2.

However, in such a webbing type buckle connection structure, when a collision accident occurs, the lower body including the knee of the occupant is pulled down to the bottom of the vehicle, and the seat belt rises in the direction of the abdomen to cause internal rupture, Phenomenon.

In order to prevent such a submarine phenomenon, a variety of methods have been developed, such as a Knee Air Bag, in which an airbag is deployed in front of the knee, or an anti-submarine sheet, in which a safety frame (or anti-submarine pan) It has not been effective yet.

On the other hand, it is known that in the case of a steel buckle made of a steel material between the buckle and the rear floor, it is possible to effectively prevent the submarine phenomenon by reducing the amount of pelvic movement. This also has a problem in that when the seat cushion and the seat back are folded, the buckle interferes between the seat cushion and the seat back, which is a factor for the passenger to feel a foreign body feeling.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

It is an object of the present invention to provide a buckle for a seat belt capable of effectively preventing a submarine phenomenon because tension between the buckle and the rear floor can be fixed like a steel buckle by applying tension to the buckle. The purpose of the structure is to provide.

Further, the present invention provides a buckle connection structure for a seat belt in which when the application of the tension to the buckle is released, the buckle can freely move like a buckle type buckle so as to avoid interference between the seat cushion and the seat back, There is a purpose.

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 .

In order to accomplish the above object, the present invention provides a buckle comprising: a buckle; And a plurality of fastening portions provided on the path of the wire so that the wire can be passed therethrough; And the plurality of fastening portions are selectively interlocked or mutually interlocked depending on the tension of the wires.

In addition, in the buckle connection structure for a seat belt according to an embodiment of the present invention, it is preferable that the fastening portion is formed of a pipe having a hollow to allow a wire to pass therethrough.

In addition, in the buckle connection structure for a seat belt according to an embodiment of the present invention, the plurality of fastening portions include a large-diameter portion and a small-diameter portion which are alternately arranged on the path of the wire, .

In addition, in the buckle connection structure for a seat belt according to an embodiment of the present invention, a tapered tapered portion may be formed at an end of the small-diameter portion such that the diameter gradually decreases toward the end.

Meanwhile, in the buckle connection structure for a seat belt according to an embodiment of the present invention, the other end of the wire is coupled to the rotation shaft of the seat back so that tension is applied when the seat back is deployed, and the tension application is released when the seat back is folded.

Further, the buckle connection structure for a seat belt according to an embodiment of the present invention includes: a tension applying device coupled to a rear floor of a vehicle and connected to the other end of the wire to wind or unwind the wire; .

In addition, the buckle connection structure for a seat belt according to an embodiment of the present invention is characterized in that a buckle connection structure for a seat belt is provided on the path of the wire, and one end of the wire connected to the buckle and the other end of the wire connected to the tension applying device are movable ; .

In addition, in the buckle connection structure for a seat belt according to another embodiment of the present invention, it is preferable that the fastening portion comprises a block through which the wire passes, and is contacted or released from the mutually-facing surface as the tension of the wire changes.

Further, in the buckle connection structure for a seat belt according to another embodiment of the present invention, it is preferable that a part of the plurality of fastening portions is different in height or shape from the side of the remaining fastening portions.

The present invention having the above-described structure has the effect of adjusting the connection rigidity of the buckle according to the tension of the wire by the tension applying device by connecting the buckle and the tension applying device by wires and providing a plurality of fastening portions on the wire have.

Specifically, before the seat belt is joined to the buckle, the tension of the wire is loosened to allow free movement like a webbing type buckle. After the seat belt is joined to the buckle, the tension of the wire is tightened, The phenomenon can be prevented.

Accordingly, the present invention can utilize one buckle connection structure as a webbing type and a steel type, thereby eliminating a foreign body feeling of a passenger and improving safety performance (prevention of a submarine phenomenon) at the same time.

Brief Description of the Drawings Fig.
2 is a view schematically showing a buckle connection structure for a seat belt according to an embodiment of the present invention;
3 schematically shows a buckle connection structure for a seat belt when tension of a wire is loose according to an embodiment of the present invention;
4 is a view schematically showing a buckle connection structure for a seat belt when the tension of a wire is tightened according to an embodiment of the present invention.
5 is a schematic view of a connection structure for a seat belt when tension of a wire is loose according to another embodiment of the present invention;
6 is a view schematically showing a connection structure for a seat belt when tension of a wire is tightened according to another embodiment of the present invention.
7 is a schematic view illustrating a connection structure for a seat belt when tension of a wire is tensioned according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings in order that the present invention can be easily carried out by those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

In addition, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, and the inventor should properly define the concept of the term to describe its invention in the best way. It should be construed as meaning and concept consistent with the technical idea of the present invention.

FIG. 2 is a view schematically showing a buckle connection structure for a seat belt according to an embodiment of the present invention. FIG. 3 is a perspective view illustrating a buckle connection structure for a seat belt when tension of a wire is loose according to an embodiment of the present invention. Fig. 4 is a view schematically showing a buckle connection structure for a seat belt when tension of a wire is tightened according to an embodiment of the present invention. Fig.

1, a conventional seat belt buckle connection structure connects a rear floor 3 of a vehicle with a buckle 1, and the buckle 1 and the rear floor 3 are connected to each other by a webbing type. Or connected as a steel type.

The buckle connection structure of the webbing type has an advantage that it can have free movement but it can not prevent the submarine phenomenon. The steel buckle connection structure can prevent the submarine phenomenon, There is a problem that interference occurs between the cushion and the seat back.

The buckle connection structure for a seat belt according to the present invention basically relates to a structure for connecting a rear floor 12 of a vehicle and a buckle 10, and is structurally similar to a conventional buckle connection structure.

However, since the connection rigidity of the buckle 10 can be adjusted freely, the seat belt buckle connection structure according to the embodiment of the present invention can realize both the advantages of the webbing type buckle connection structure and the steel type buckle connection structure.

2, a buckle connection structure for a seat belt according to an embodiment of the present invention includes a wire 20 having one end connected to a buckle 10 and movable with a buckle, And a plurality of fastening portions 40 provided on the path of the wires so that the fastening portions can be formed.

Although not shown, the other end of the wire 20 is coupled to the rotation shaft of the seat back so that the tension is applied when the seat back is opened and the tension is released when the seat back is folded.

2, a tension applying device 30 is coupled to the rear floor 12 of the vehicle, and the tension applying device 30 is connected to the other end of the wire 20 to wind or unwind the wire .

The tension applying device 30 may be a servo-motor coupled to the rear floor 12 and connected to the other end of the wire 20 to wind or unwind the wire.

Of course, the tension applying device 30 may be any device capable of loosening or tightening the wire by applying or releasing tension on the wire, such as when the occupant manually pulls the lever to apply tension to the wire 20 none.

The tension applying device 30 may operate automatically by recognizing the combination of the seat belt and the buckle, or may be operated manually by the occupant by pressing a button (not shown) or the like inside the occupant.

In the embodiment of the present invention, one end of the wire 20 connected to the buckle 10 and the other end of the wire 20 connected to the tension applying device 30 are moved along different directions on the path of the wire 20 A path guide 22 is provided.

The path guide 22 serves to change the path of the wire 20. In the illustrated embodiment, the wire 20 on the right side connected to the tension applying device 30 with respect to the path guide 22, And the left side connected to the buckle 10 with respect to the path guide 22 is moved in the vertical direction.

The warning guide may be coupled to the rear floor 12 through a separate bracket (not shown) or may be directly coupled to the rear floor through welding or the like, or may be integrally formed with the rear floor.

The buckle connection structure of the seat belt configured as described above is configured such that a plurality of fastening portions 40 are selectively interlocked or mutually disengaged according to the tension of the wire 20 by the tension applying device 30, Safety performance can be satisfied at the same time.

3 and 4, the fastening part 40 according to an embodiment of the present invention is preferably formed of a pipe having a hollow 44a formed therein so that the wire 20 can pass therethrough .

3, when the tension of the wire 20 is loose, the plurality of fastening portions 40 are released from each other to act as a webbing type buckle, and as shown in Fig. 4, The plurality of fastening portions 40 are fastened to each other and act like a steel type buckle.

Specifically, the fastening portion 40 includes a pipe-shaped small-diameter portion 42 having a relatively small diameter and a large-diameter pipe portion 44 having a relatively large diameter. The small-diameter portion 42 and the large- 44 are alternately arranged on the path of the wire 20. [

The end of the small diameter portion 42 is inserted into the hollow 44a inside the large diameter portion 44 when the tensile force of the wire 20 is increased by the tension application of the tension applying device 30, (10) is firmly supported.

At this time, the inner diameter (diameter of the hollow 44a) of the large diameter portion 44 is formed to be slightly smaller than the outer diameter (outer diameter) of the small diameter portion 42 or formed to be the same as the outer diameter of the small diameter portion 42 So that the neck portion 42 is strongly inserted into the inside of the large-diameter portion 44.

The process of disengaging the large diameter portion 44 and the small diameter portion 42 can be performed by pulling the buckle 10 to release or tighten the wire 20 in a state where the tensile force applied by the tension applying device 30 is released, It can be released by the shape of the portion 40 itself.

3 and 4, it is preferable that a tapered portion 42a is formed at the end of the small diameter portion 42 in such a manner that the diameter gradually decreases toward the end.

The tapered portion 42a helps the small diameter portion 42 to be easily inserted into the large diameter portion 44 when the fastening portions 40 are fastened to each other. Thereby facilitating the separation of the neck portion 42 from the large-diameter portion 44.

FIG. 5 is a view schematically showing a connection structure for a seat belt when the tension of the wire is loose according to another embodiment of the present invention, and FIG. 6 is a cross- FIG. 7 is a view schematically showing a connection structure for a seat belt when tension of a wire according to another embodiment of the present invention is tightened. FIG.

As shown in FIGS. 5 and 6, the fastening part 40 according to another embodiment of the present invention is a block in which the wire 20 passes through and contacts or is disconnected from each other in accordance with the tension of the wire. .

When the tensile force of the wire 20 is loose, mutual contact is released so that it can move freely. When the tensile force of the wire 20 is tightened, the fastening portion 40 is formed in the shape of a rectangular parallelepiped, So that a supporting load is generated.

As described above, the fastening part 40 according to another embodiment of the present invention works in much the same way as the fastening part according to the above-described embodiment of the present invention, but the process of inserting the pipes together is omitted, So that the connection rigidity of the buckle 10 is varied.

In addition, as shown in FIG. 7, it is preferable that a part of the plurality of fastening parts of the fastening part 40 according to another embodiment of the present invention is different in height or shape from the side surfaces of the remaining fastening parts.

That is, as in the illustrated embodiment, some of the plurality of fastening portions 40 are formed in a shape similar to a trapezoidal shape of the side, so that the side surfaces of the remaining fastening portions 40 are formed in a rectangular shape.

This is because the above-described pipe-shaped fastening portion can be fastened in various forms, unlike the case where the tension is only a straight shape when the tension is tensioned, the fastening portion 40 according to another embodiment of the present invention can be fastened in various forms, There is an advantage that the degree of freedom of design in the system is improved.

As described above, according to the buckle connection structure for a seat belt according to the present invention, the connecting rigidity of the buckle can be varied according to the tension of the wire by the tension applying device, thereby relieving the foreign body feeling of the occupant and preventing the submarine phenomenon have.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Will be apparent to those of ordinary skill in the art.

10: Buckle
12: Rear floor
20: Wire
22: Path guide
30: tension applying device
40:
42: Small neck
42a:
44: Large neck
44a: Hollow of Daegu Department

Claims (9)

A wire once connected to the buckle and movable with the buckle; And
A plurality of fastening portions provided on the path of the wire so that the wires can be penetrated; / RTI >
Wherein the plurality of fastening portions comprise a large diameter portion and a small diameter portion alternately arranged on the path of the wire, the pipe being made of a hollow pipe so that the wire can pass therethrough,
Wherein an end of the small diameter portion is selectively inserted into the hollow inside the large diameter portion according to a change in the tension of the wire or is released from an inner hollow of the large diameter portion to release the fastening.
delete delete The method according to claim 1,
Wherein a tapered tapered portion is formed at an end of the small diameter portion so as to gradually decrease in diameter toward an end thereof.
The method according to claim 1,
And the other end of the wire is coupled to the rotation shaft of the seat back to apply a tension when the seat back is opened and to release the tension when the seat back is folded.
The method according to claim 1,
A tension applying device coupled to a rear floor of the vehicle and connected to the other end of the wire to wind or unwind the wire; Further comprising a buckle connecting structure for a seat belt.
The method according to claim 6,
A path guide provided on the path of the wire so that one end of the wire connected to the buckle and the other end of the wire connected to the tension applying device are movable along different directions; Further comprising a buckle connecting structure for a seat belt.
The method according to claim 1,
Wherein the fastening portion comprises a block in which the wire passes through the inside and contacts or is released from the mutual surface-to-face contact with the tension of the wire.
9. The method of claim 8,
Wherein a portion of the plurality of fastening portions is different in height or shape from a side surface of the remaining fastening portion.
KR1020150166020A 2015-11-26 2015-11-26 Connection structure of buckle for seat belt KR101738049B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150166020A KR101738049B1 (en) 2015-11-26 2015-11-26 Connection structure of buckle for seat belt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150166020A KR101738049B1 (en) 2015-11-26 2015-11-26 Connection structure of buckle for seat belt

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001037615A (en) * 1999-08-02 2001-02-13 Fairyland:Kk Rosary-shaped wire device and product to use the same
JP2001128835A (en) * 1999-11-05 2001-05-15 Fairyland:Kk Wire-like plastic body and product using the same
KR100602663B1 (en) * 2004-05-17 2006-07-20 현대모비스 주식회사 Pretensioner of seat belt in a car

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001037615A (en) * 1999-08-02 2001-02-13 Fairyland:Kk Rosary-shaped wire device and product to use the same
JP2001128835A (en) * 1999-11-05 2001-05-15 Fairyland:Kk Wire-like plastic body and product using the same
KR100602663B1 (en) * 2004-05-17 2006-07-20 현대모비스 주식회사 Pretensioner of seat belt in a car

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