WO2014104794A1

WO2014104794A1 - Safety belt buckle for vehicle

Info

Publication number: WO2014104794A1
Application number: PCT/KR2013/012274
Authority: WO
Inventors: 이경상; 송택림; 김영현; 권영식
Original assignee: 주식회사 우신세이프티시스템
Priority date: 2012-12-27
Filing date: 2013-12-27
Publication date: 2014-07-03

Abstract

The present invention relates to a safety belt buckle for a vehicle, which is fixed to a vehicle seat by a fixing wire and with which a tongue of the safety belt for a vehicle is engaged, comprising a buckle frame having a main body to and from which the tongue is fixed and released, wherein the buckle frame comprises a wire stopper protruding from one surface of the buckle frame in a direction in which the fixing wire is arranged so as to prevent the fixing wire from moving in a mechanism direction due to an external force, or comprises: an elastic member of which elastic deformation and elastic restoration can be performed to fix or release the tongue; and a buckle latch comprising a fixing latch and an ejector for fixing or releasing the tongue, and having an insertion groove into which the elastic member can be inserted, wherein the insertion groove is provided as a pair on one surface of the buckle latch so as to insert and fix the elastic member thereinto, and any one of the pair of insertion grooves, to which a load added for fixing the tongue to the buckle latch is more concentrated, has a greater depth than that of the other one insertion groove.

Description

Buckle of Car Seat Belt

The present invention relates to a buckle of a vehicle seat belt, and more particularly, to prevent movement in a mechanism direction of a fixing wire for fixing the vehicle seat belt buckle to a vehicle seat, and an elastic member provided in the buckle of the vehicle seat belt. The present invention relates to a buckle for a vehicle seat belt that can reduce the consumption of time and cost required for replacement by preventing a buckling phenomenon that may occur in the vehicle.

Vehicle operation is becoming an indispensable element in modern society. As the number of vehicles driven rapidly increases, accidents caused by vehicles also increase.

At this time, one of the biggest causes of vehicle accidents is speeding. While speeding may be a direct cause of vehicle accidents, it is also problematic that the damage of vehicle accidents caused by speeding is greatly increased.

In order to further reduce the damage of the vehicle accident due to the speed, the vehicle is generally equipped with a seat belt together with an airbag device as a safety device for the safety of drivers and passengers driving the vehicle.

At this time, the airbag device and the seat belt block the structure and the body to prevent some parts of the driver and the passenger's body sitting on the seat from touching or hitting the structure in the vehicle in case of an accident, and the body is separated from the seat to the outside It can be prevented from being thrown out.

In particular, the seat belt secures the upper body in the event of a collision while driving to protect the driver and the occupant in the event of a collision, thereby minimizing personal injury by preventing collision with the instrument panel.

In the schematic configuration of the seat belt, a buckle fixed to one side of the floor panel with a fixing wire, a retractor fixed to the lower part of the center pillar and wound webbing, Tongues provided to engage the buckle on the webbing unscrewed to the desired length from the retractor, and anchors to adjust the height of the guider and the belt to prevent the webbing from twisting as it is unwound or wound. )

The seat belt configured as described above fixes both ends of the webbing having a constant width to the floor panel and the center pillar, and the user is positioned therebetween to prevent the user's body from being thrown forward or in the direction of the accident in the event of an accident. have.

With respect to the vehicle seat belt having such a configuration and action, in more detail with respect to the buckle included therein, the webbing is fixed to the center pillar to be able to engage and disengage the webbing in general, and pull out the webbing, An emergency fixing means is installed on the retractor and the flower panel, and configured to selectively fix the tongue provided at the end of the webbing.

By the way, the fixing wire for fixing the buckle configured in this way can be easily moved in the mechanism direction by the external force applied from the outside. In order to prevent this, a method of combining a separate fastener to the buckle has also been devised, but hassle caused by assembly when manufacturing and replacing, there is a problem that a defective product occurs due to mistakes during the assembly process.

In addition, the buckle is provided with an elastic member can be fixed to the tongue, the elastic member is fixed to the tongue may be buckle according to the structure and shape of the member is connected to each other, this buckling phenomenon of the elastic member There is a problem that the life is shortened and the consumption of time and cost for replacing it is increased.

An object of the present invention is to provide a buckle of a vehicle seat belt that is easy to assemble while preventing movement in the direction of a mechanism of a fixing wire for fixing a buckle of a vehicle seat belt, while preventing a buckling phenomenon from occurring. It is to provide a buckle of the seat belt.

In addition, the technical problem to be solved by the present invention is not limited to the above-mentioned technical problem, and other technical problems not mentioned are clearly to those skilled in the art from the following description. It can be understood.

According to the present invention, the object is fixed to the vehicle seat by the fixing wire, the buckle of the vehicle seat belt to which the tongue of the vehicle seat belt is fastened, the body to which the tongue is fixed and detached And a buckle frame, wherein the buckle frame protrudes from a bottom surface of the buckle frame in a direction in which the fixing wire is disposed to prevent the fixing wire from moving in a mechanism direction by an external force. It can be achieved by a buckle of the vehicle seat belt characterized in that it comprises a).

Here, the wire stopper may be bent extending from the buckle frame and integrally formed with the buckle frame.

In addition, the wire stopper may be bent end so that the fixing wire can be inserted.

In addition, the wire stopper may be formed in a curved surface to correspond to the shape of the fixing wire wound on the fixing pin.

Furthermore, the wire stopper may be provided in plural numbers so as to be spaced apart along the arrangement shape of the fixing wire.

On the other hand, the object is, according to the present invention, a buckle (buckle) of the vehicle seat belt to which the tongue of the vehicle seat belt is fastened, the elastic member capable of elastic deformation and elastic recovery to fix and release the tongue; And a buckle latch having a fixing latch and an ejector to fix and release the tongue, and an insertion groove formed to allow the elastic member to be inserted, wherein the insertion groove is inserted and fixed to the elastic member. The insertion groove is provided on one surface of the buckle latch, and one of the insertion grooves of the pair of the insertion grooves is further concentrated with a rod applied to fix the tongue to the buckle latch. It can be achieved by a buckle of the vehicle seat belt characterized in that it is formed deeper than the depth.

In this case, the elastic member is a cylindrical spring provided by the rotation in the helical direction, the depth of any one of the insertion groove corresponding to the portion of the pair of the insertion groove is increased the wire diameter of the spring is different It may be formed deeper than the depth of one of the insertion groove.

In addition, the elastic member is a cylindrical spring provided by the rotation in the helical direction, the depth of any one of the insertion groove corresponding to the portion where the height difference of the spring mounting surface of the pair of the insertion groove is reduced. May be formed deeper than the depth of the other one insertion groove.

In addition, the depth of the insertion groove of any one of the pair of insertion grooves may be formed deeper by the wire diameter of the spring than the depth of the other insertion groove.

According to the present invention, it is possible to prevent the fixing wire from moving in the direction of the mechanism from the buckle frame, in particular, it is possible to reduce the hassle required when assembling the buckle, in particular because the buckle frame and the wire stopper can be integrally formed Even without a separate component, it is possible to provide a buckle of a vehicle seat belt that can prevent movement of the fixing wire in the mechanism direction.

In addition, according to the present invention, by providing a pair of insertion grooves having a depth difference, to prevent the buckling phenomenon occurs in the elastic member inserted and fixed to the insertion groove to extend the life of the elastic member, buckle of the vehicle seat belt Longer lifespan can enhance safety.

1 is a view schematically showing the inside of a part of the buckle of the vehicle seat belt according to the prior art.

2 is a view showing a buckle frame according to an embodiment of the present invention.

3 is a view schematically showing the interior of the buckle of the seat belt for a vehicle according to an embodiment of the present invention.

FIG. 4 is a cross-sectional view taken along the line a-a ′ of FIG. 3.

5 is a view showing a modification according to an embodiment of the present invention.

6 and 7 illustrate other modifications according to an embodiment of the present invention.

8 is a view showing another part of the buckle of the seat belt for a vehicle according to an embodiment of the present invention.

9 and 10 illustrate a buckle latch in which an elastic member is inserted according to an embodiment of the present invention.

<도면부호의 설명><Description of Drawing>

10: fixing wire

100: part of the buckle of the vehicle seat belt

110: buckle frame

112: wire stopper

200: another part of the buckle of the vehicle seat belt

210: elastic member

220: buckle latch

222a, 222b: Insertion groove

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

First, referring to FIGS. 1 to 7, the buckle of the vehicle seat belt which is easy to assemble while preventing movement in the direction of the mechanism of the fixing wire for fixing the buckle of the vehicle seat belt will be described in detail.

1 is a view schematically showing the inside of a part of the buckle of the vehicle seat belt according to the prior art, Figure 2 is a view showing a buckle frame according to an embodiment of the present invention, Figure 3 is 4 is a view schematically illustrating the inside of a buckle of a vehicle seat belt according to an embodiment of the present invention, and FIG. 4 is a cross-sectional view illustrating a cross section taken along aa ′ of FIG. 3. On the other hand, Figure 5 is a view showing a modification according to an embodiment of the present invention, Figure 6 and Figure 7 is a view showing another variant according to an embodiment of the present invention.

As shown in FIG. 2, a part 100 of the buckle of the vehicle seat belt according to the embodiment of the present invention is fixed to the vehicle seat by the fixing wire 10, and the tongue of the vehicle seat belt ( As part 100 of the buckle of the vehicle seat belt to which the tongue is fastened, it may include a buckle frame 110.

Buckle frame 110 is a portion that forms the body of the buckle, including a fixing latch and an ejector so that the tongue can be fixed and detached.

The buckle frame 110 according to the present embodiment is fixed to the vehicle seat by the fixing wire 10 as described above, wherein the fixing wire 10 is moved in the direction of the mechanism from the buckle frame 110 by an external force. It may include a wire stopper 112 to prevent that.

The wire stopper 112 may protrude from one surface of the buckle frame 110 in a direction in which the fixing wire 10 is disposed.

The fixing wire 10 according to the present embodiment is disposed in a U-shape as shown in FIG. 3 to wind up a part of the fixing pin inserted into the hollow and the hollow formed on one surface of the buckle frame 110. The fixing pin inserted in the hollow allows the portion 100 of the buckle of the vehicle seat belt including the buckle frame 110 in this embodiment to be fixed to the vehicle seat.

In this case, when the wire stopper 112 does not exist, when an external force is applied to the fixing wire 10 as shown in FIG. 1, the wire may move in the mechanism direction.

Therefore, in order to prevent movement of the fixing wire 10 in the mechanism direction, the portion 100 of the buckle of the vehicle seat belt according to the present embodiment is fixed from the surface of the buckle frame 110 to the fixing wire 10. ) Includes a wire stopper 112 which protrudes toward the side where it is disposed.

On the other hand, the mechanism direction according to the present invention means a direction in which an external force is applied to the fixing wire 10. In other words, as shown in Figure 1 refers to the direction of the force that can generate a mechanism in which the fixing wire 10 is separated from the buckle frame 110 by an external force.

In this case, the wire stopper 112 according to the present exemplary embodiment may be provided to protrude so as to extend from the buckle frame 110 and may be integrally formed with the buckle frame 110.

The buckle frame 110 may be made of a material such as metal or synthetic resin having excellent durability because it must withstand an external force transmitted from the outside or an impact due to vehicle driving.

Therefore, the wire stopper 112 according to the present embodiment may be integrally formed with the buckle frame 110 when the buckle frame 110 is manufactured using a material such as metal or synthetic resin.

However, since this is only an example, there may be various embodiments other than the material and manufacturing method of the buckle frame 110 and the wire stopper 112, and the scope of the present invention will not be limited through them.

On the other hand, the end portion of the wire stopper 112 may be bent as shown in FIG. 4 in order to exert a more advantageous effect in preventing movement of the fixing wire 10 in the mechanism direction.

When the end of the wire stopper 112 protruding from the one surface of the buckle frame 110 to the side in which the fixing wire 10 is disposed is bent, it may be provided in the shape of a hook when viewed from the side.

As a result, the fixing wire 10, which is prevented from moving in the mechanism direction by the wire stopper 112, may be inserted and fixed between the end of the bent wire stopper 112 and one surface of the buckle frame 110, and thus the mechanism direction. It is more advantageous to prevent the movement to the process.

In addition, as shown in FIG. 5, as one of the modifications according to the present embodiment, the wire stopper 112 corresponds to the shape of the fixing wire 10 wound around the fixing pin inserted into the hollow of the buckle frame 110. It may be formed as a curved surface.

When the wire stopper 112 is formed in a curved surface, the fixing force of the fixing wire 10 can be further improved, which is advantageous in preventing movement in the mechanism direction.

On the other hand, as shown in Figure 6, as one of the modifications of another embodiment of the present invention, a plurality of wire stoppers 112 may be provided to be spaced apart along the arrangement shape of the fixing wire 10.

As described above, the fixing wire 10 according to the present exemplary embodiment may be disposed in a U shape, and the fixing force of the fixing wire 10 is fixed by a plurality of wire stoppers 112 provided to correspond to the arrangement. It can be further improved, which is advantageous in preventing movement in the mechanism direction.

In the above, a part 100 of the buckle of the vehicle seat belt according to the embodiment of the present invention has been described.

According to the part 100 in the buckle of the vehicle seat belt according to the present invention, it is possible to prevent the fixing wire 10 from moving in the direction of the mechanism from the buckle frame 110, in particular, the need for assembly of the buckle It can reduce the roaming and can prevent the movement of the wire by the user.

In particular, since the buckle frame 110 and the wire stopper 112 may be integrally formed, the buckle of the vehicle seat belt can be prevented from moving in the direction of the mechanism of the fixing wire 10 even if a separate component is not added. Since the part 100 can be provided, it is possible to reduce the consumption of time and cost required for installing the part 100 in the buckle of the vehicle seat belt, and to prevent the performance degradation of the product. Can be.

Next, the buckle of the vehicle seat belt which can prevent the buckling phenomenon from occurring will be described in detail with reference to FIGS. 8 to 10.

8 is a view showing another part of the buckle of the seat belt for a vehicle according to an embodiment of the present invention, Figures 9 and 10 are buckle latches, the elastic member is inserted according to an embodiment of the present invention The figure which shows.

As shown in Figure 8 to 10, the other portion 200 of the buckle of the vehicle seat belt according to an embodiment of the present invention is that the tongue of the vehicle seat belt is fastened, the elastic member 210 and A buckle latch 220 may be included.

The elastic member 210 is a part capable of elastic deformation and elastic recovery in order to fix and release the tongue. The elastic member 210 according to the present embodiment is provided by rotation in a spiral direction such as clockwise or counterclockwise. It may be a cylindrical spring to be.

The elastic member 210 according to the present embodiment may be connected to the fixing latch and the ejector provided in the buckle.

When the user pulls the webbing to fasten the vehicle seat belt and inserts the tongue of the vehicle seat belt into the buckle, the tongue can be fixed by operating the fixing latch by the elastic deformation of the elastic member 210 provided inside the buckle.

On the contrary, when the user wants to release the fastened vehicle seat belt, the user may operate the ejector provided in the buckle, and the elastic member 210 may be elastically recovered by the operation of the ejector to detach the tongue to the outside.

The buckle latch 220 is a portion forming the main body of the buckle with a fixing latch and an ejector for fixing and detaching the tongue, the insertion groove (222a, 222b) is formed so that the elastic member 210 can be inserted and fixed Can be.

Insertion grooves (222a, 222b) according to this embodiment may be provided in a pair on one surface of the buckle latch 220 so that the elastic member 210 can be inserted and fixed.

As described above, the elastic member 210 according to the present embodiment may be a spring having a cylindrical shape, and both ends of the spring have a pair of

insertion grooves

222a and 222b around the hollow provided in the cylindrical spring. Each can be inserted into and fixed to.

At this time, of the pair of insertion grooves (222a, 222b), the insertion grooves (222a) toward the elastic member 210 is concentrated on the other side of the rod is applied to the tongue of the vehicle seat belt is fixed to the buckle latch 220 It may be formed deeper than the depth of the insertion groove (222b).

In the case of the cylindrical spring provided by the rotation in the helical direction as in the present embodiment, the length difference of the spring by the helical structure of the spring is changed by the spiral structure of the spring as the spring is maintained toward the end while maintaining a constant wire diameter at the center of the spring. Occurs, which allows the rod of the spring to concentrate on one side.

Therefore, as described above, the depth of the insertion groove 222a provided on the side where the rod is concentrated due to the spiral structure of the spring may be provided deeper than that of the other insertion groove 222b.

Alternatively, in the cylindrical spring provided by the rotation in the helical direction, the depth of the insertion groove 222a corresponding to the portion where the height difference of the spring seating surface decreases is equal to the depth of the insertion groove 222b on the other side. Can be formed more deeply.

The spring seating surface (not shown) corresponds to a cross section of an imaginary inclined plane formed while the wire is wound by rotation in a spiral direction. The spring can be compressed when the tongue of the seat belt is engaged between these spring seating surfaces. At this time, since the compressive force in one direction of the spring may be increased and buckling may occur, in order to prevent the occurrence of such buckling, one insertion groove having a different depth of the insertion groove 222a corresponding to the side where the buckling is generated ( Deeper than the depth of 222b).

When the depth of the insertion groove 222a on the side where the rod is concentrated is formed deeper than the depth of the other insertion groove 222b, the insertion groove formed on the one side of the elastic member 210 is deeper than the other side. Buffered by 222a to disperse it.

Therefore, the buckling phenomenon in which the elastic member 210 is inclined in one direction can be prevented due to the concentration of the rod, thereby extending the life of the elastic member 210, thereby reducing the time and cost required to replace the elastic member 210. It is possible to reduce the cost, which makes it more economical and improves safety.

At this time, as shown in Figure 9 and 10, the insertion groove 222a is formed deeper than the other insertion groove 222b according to this embodiment is the height difference (b) corresponding to the wire diameter (a) of the spring It may be formed to have.

When the pair of

insertion grooves

222a and 222b are formed to have a height difference b corresponding to the wire diameter a of the spring, the rods, which are concentrated on only one side and are imbalanced, may be evenly distributed. It is possible to prevent another buckling phenomenon that may occur due to an inappropriate height difference between the

grooves

222a and 222b.

In the above, the other part 200 in the buckle of the vehicle seat belt according to the embodiment of the present invention has been described.

According to another portion 200 of the buckle of the vehicle seat belt according to the present invention, for example, a pair formed so as to have a depth difference as much as the wire diameter of the spring in using the elastic member 210 corresponding to the spring It is possible to prevent the buckling phenomenon generated in the spring by the insertion groove of the.

Therefore, it is possible to extend the life of the spring more, which is more economical because it can reduce the time and cost to replace the end of life spring.

While specific embodiments of the invention have been described and illustrated above, it is to be understood that the invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the invention. It is self-evident to those who have. Therefore, such modifications or variations are not to be understood individually from the technical spirit or point of view of the present invention, the modified embodiments will belong to the claims of the present invention.

Claims

A buckle of a vehicle seat belt fixed to a vehicle seat by a fixing wire and to which a tongue of the vehicle seat belt is fastened, and including a buckle frame forming a body to which the tongue is fixed and detached.

The buckle frame, characterized in that it comprises a wire stopper protruding from one surface of the buckle frame in the direction in which the fixing wire is disposed to prevent the fixing wire from moving in the mechanism direction by an external force. , Buckle on car seat belt.
The buckle of claim 1, wherein the wire stopper is extended from the buckle frame and integrally formed with the buckle frame.
The buckle of the vehicle seat belt according to claim 1, wherein the wire stopper has an end portion bent so that the fixing wire can be inserted therein.
The buckle of the vehicle seat belt according to claim 1, wherein the wire stopper is formed in a curved surface so as to correspond to a shape of the fixing wire wound on the fixing pin.
The buckle of the vehicle seat belt according to claim 1, wherein the wire stopper is provided in plural numbers so as to be spaced apart along the arrangement shape of the fixing wire.
A buckle of a vehicle seat belt to which a tongue of the vehicle seat belt is fastened, the buckle of the vehicle seat belt, the elastic member capable of elastic deformation and elastic recovery to fix and release the tongue; And a buckle latch having a fixing latch and an ejector to fix and detach the tongue, and an insertion groove formed to allow the elastic member to be inserted therein.

The insertion groove is provided in a pair on one surface of the buckle latch so that the elastic member can be inserted and fixed, wherein a rod applied to fix the tongue of the pair of insertion grooves to the buckle latch is further concentrated. Any one of the insertion groove is characterized in that the depth is formed more than the depth of the other one of the insertion groove, buckle of the vehicle seat belt.
The spring of claim 6, wherein the elastic member is a cylindrical spring provided by rotation in a helical direction, and the insertion groove is any one of the pair of insertion grooves corresponding to a portion where the wire diameter of the spring decreases. The depth of the other is characterized in that the deeper than the depth of the insertion groove, the buckle of the vehicle seat belt.
The spring of claim 6, wherein the elastic member is a cylindrical spring provided by rotation in a helical direction, and any one of the pair of insertion grooves corresponds to a portion where a height difference between the spring seating surfaces occurs. A buckle of the vehicle seat belt, characterized in that the depth of the insertion groove is formed deeper than the depth of the other one insertion groove.
According to claim 7 or 8, characterized in that the depth of the insertion groove of any one of the pair of the insertion groove is formed deeper by the wire diameter of the spring than the depth of the other insertion groove, Buckle of car seat belt.