KR20060036184A - Apparatus for seat belt - Google Patents

Abstract

The present invention relates to a seat belt device. The seat belt apparatus of the present invention includes a belt retractor fixed to the frame of the transportation device; A seat belt having one end coupled to the retractor and the other end fixed to the frame; A first buckle fixed to an opposite side of said seat belt relative to a seated person; A first tongue plate coupled to the seat belt and formed to be detachable from the first buckle; A chest belt side engaging member coupled to the seat belt between the first tongue plate and the top of the seat belt; And a seat side coupling member fixed to the frame at a position different from the first buckle. Therefore, when the infant is seated, the chest belt can be positioned on the infant's chest, and thus can be used for both adults and children without having a separate car seat.

Seat belts, seat belts

Description

Seat belt device {APPARATUS FOR SEAT BELT}

1 and 2 show the structure of a conventional seat belt device,

1 is a perspective view showing the structure of a conventional seat belt apparatus

2 is a front view when a toddler wears a conventional seat belt.

3 to 6 is a view showing the structure of an embodiment of the present invention,

3 is a state diagram of use of the seat belt device;

4 is a perspective view of the position adjusting device of FIG.

5 is a cross-sectional view taken along the cutting line VV of FIG. 4.

6 is a plan view of the second tongue plate of FIG.

** Description of the symbols for the main parts of the drawings **

1: sheet 2: seater

30: seat belt 30a: chest belt

30b: waist belt

110: chest belt side engaging member, second tongue plate

111: tongue plate body 112: coupling ring

113: opening and closing member

120: seat side engaging member, second buckle

130: position adjusting device 131: support member

132: moving groove 133: expansion groove

136: sliding member 136a: vertical locking portion

136b: horizontal locking portion 136c: moving portion

136d: exit lock

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat belt device, and more particularly, to a seat belt device capable of ensuring safety for an infant by enabling an adult seat belt to be used in accordance with an infant's body shape.

In general, the seat belt is to fix the position of the passenger while driving to the seat as possible, and by attaching the seat belt is to reduce the secondary injury caused by the impact force during the collision. Such seat belts are used in a variety of vehicles such as automobiles, aircraft, trains.

1 is a perspective view showing the structure of a conventional seat belt apparatus, and FIG. 2 is a front view of a conventional seat belt worn by an infant.

In the conventional seat belt apparatus, one end is coupled to the retractor 40, and the upper end is supported by the upper belt support 11, and the other end is coupled to the seat belt 30 fixed to the lower side and the seat belt 30. Tongue plate 31 and a buckle 20 provided on the side of the seat opposite to the seat belt 30 with respect to the seat. The retractor 40 is a mechanism for winding the belt 30.

The method of wearing the conventional seat belt device configured as described above is implemented by fastening the tongue plate 31 coupled to the belt 30 to the buckle 20 after the passenger sits on the seat 1.

When the tongue plate 31 is fastened to the buckle 20, the chest belt 30a supports the passenger's chest from the upper belt support 11 to the buckle 20, and the waist belt 30b is buckle ( 20) support the waist of the passenger in the horizontal direction.

However, since the general seat belt is manufactured based on an adult, when the infant is seated on the seat and fastens the seat belt, the chest belt 30a passes through the significant face area as shown in FIG. 2. Therefore, the infant is uncomfortable during normal operation due to the chest belt (30a), and when the accident occurs, the chest belt may press the infant's neck may cause fatal damage to the infant. As a result, separate car seats for infants should be provided. However, when the car seat is provided separately, there is a problem in that it is inconvenient to install and separate the car seat, and the economic burden is large.

The present invention has been made to solve the above problems, and can be used as a combined infant and adult without a separate infant seat, to provide a seat belt device that can reduce the cost and promote the safety of the infant. .

The present invention is a belt retractor fixed to the frame of the transport device to achieve the object as described above; A seat belt having one end coupled to the retractor and the other end fixed to the frame; A first buckle fixed to an opposite side of said seat belt relative to a seated person; A first tongue plate coupled to the seat belt and formed to be detachable from the first buckle; A chest belt side engaging member coupled to the seat belt between the first tongue plate and the top of the seat belt; And a seat side coupling member fixed to the frame at a position different from the first buckle. Therefore, even if the infant is seated, the chest belt can be worn according to the infant's sitting height.

Here, the seat-side coupling member is formed of a second buckle, the chest belt-side coupling member is preferably a second tongue plate detachable to the buckle.

In addition, the tongue plate is a tongue plate body detachable from the buckle; An engagement ring formed integrally with the tongue plate body and surrounding the seat belt; An opening part formed by opening a portion of the coupling ring; And opening and closing member for opening and closing the opening portion; it is effective to include.

And the seat-side coupling member is effective to be fixed in the opposite direction of the direction in which the seated person's head based on the chest belt across the seated person's chest in the state where the first buckle and the first tongue plate is coupled.

In addition, it is preferable to further include a; position adjusting device for adjusting the position of the seat-side coupling member. Therefore, the height of the chest strap can be adjusted more flexibly according to the seated height of the seated person.

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

However, in describing the present invention, a detailed description of known functions or configurations will be omitted in order not to disturb the gist of the present invention. In addition, the same reference numerals are given to the same and the same components as those described above, and detailed description thereof will be omitted.

3 to 6 is a view showing a structure of an embodiment of the present invention, Figure 3 is a state of use of the seat belt device, Figure 4 is a perspective view of the position adjusting device of Figure 3, Figure 5 is a cutting line of Figure 4 6 is a plan view of the second tongue plate of FIG. 3.

As shown in these figures, the seat belt device of the embodiment of the present invention is a belt retractor 40 fixed to the frame of the vehicle, one end is coupled to the retractor 40 and the other end is seat belt fixed to the vehicle frame 30, a first buckle 20 fixed to the opposite side of the seat belt on the basis of the seated occupant 2, and an agent that is coupled to the seat belt 30 and formed to be detachable from the first buckle 20. Different from the first tongue plate 31, the chest belt side engaging member 110 coupled to the seat belt 30 between the first tongue plate 31 and the upper end of the seat belt 30, and the first buckle 20 The seat side coupling member 120 fixed to the vehicle body of the position, and the position adjustment device 130 that can adjust the position of the seat side coupling member 120 is configured.

The seat belt 30 includes a chest belt 30a crossing the chest of the seated occupant and a waist of the seated seat 2 based on a state in which the first buckle 20 and the first tongue plate 31 are fastened. It consists of a waist belt (30b). The chest belt 30a and the waist belt 30b are not separated separately but are used as one integrated belt.

Seat-side coupling member 120 may be used, such as a buckle generally used in automobile seat belts. In the present invention, the second buckle 120 is called to distinguish it from the first buckle 20. The second buckle 120 is composed of a second buckle main body 121 and a connection portion 122 for fixing the second buckle main body 121 to the seat side. The second buckle 120 is the seat side in the opposite side of the seating direction of the seated person's head relative to the chest belt 30a in a state where the seat side coupling member 120 and the chest belt side coupling member 110 are not coupled to each other. Is fixed to. Therefore, in the state where the seat side coupling member 120 and the chest belt side coupling member 110 are coupled, the chest belt 30a is further lowered so as not to press the face or neck of the infant. However, the present invention is not limited only to this position, and the seat side coupling member 120 may be positioned at various positions according to the purpose.

Chest belt side coupling member 110 is coupled to the chest belt (30a). The chest belt side coupling member 110 is formed in a tongue plate shape to be detachable from the second buckle 120. In the present invention, the second tongue plate 31 is called a second tongue plate to distinguish it from the first tongue plate 31. Looking in detail, as shown in Figure 6, the tongue plate body 111 formed to be coupled to the seat-side coupling member 120, the tongue plate body 111 is formed integrally with the coupling formed to surround the seat belt Ring 112, and coupled to the coupling ring 112 is composed of an opening and closing member 113 to slide in the longitudinal direction of the coupling ring.

The tongue plate body 111 is formed through the center coupling hole 111a to be coupled to the second buckle 120.

The coupling ring 112 is formed with an opening 112b in which a part of the ring is opened so that the seat belt 30 can be freely fitted. In addition, a thread 112a is formed on an outer circumferential surface of at least one of both ends of the coupling ring 112 forming the opening 112b.

The opening and closing member 113 is formed in a pipe shape so that the coupling ring 112 is inserted into the inner hole and slides, and a thread is formed on the inner circumferential surface of the inner hole so as to be engaged with the thread 112a formed in the coupling ring 112. In addition, the opening and closing member 113 is formed longer than the length of the opening (112b). Accordingly, since the opening 112b formed in the coupling ring 112 may be opened and closed by rotating the opening and closing member 113, the opening and closing member 113 may be freely attached to and removed from the seat belt.

In the embodiment of the present invention, but the seat-side coupling member 120 and the chest belt side coupling member 110 used a buckle and a tongue plate used in a general vehicle, but is not necessarily limited to this, various various coupling members can be used Can be.

Position adjusting device 130 is for adjusting the height of the chest strap according to the safety key of the seated, the fixing member 131 fixed to the seat side, the moving groove formed on one surface (131a) of the fixing member 131 ( 132, a sliding member 136 fitted to move in the longitudinal direction of the moving groove 132, and fixed to the sheet-side coupling member 120, and a support plate 135 supporting the lower surface of the sliding member 136. And a restoration member 134 for supporting the support plate 135.

A part of the moving groove 132 is extended to the moving groove 132 to form an expansion groove 133.

The sliding member 136 is coupled to the connection portion 122 of the buckle 121 from the upper end of the buckle release prevention portion 136d to prevent the connection portion 122 is separated, and the width (d1) of the moving groove 132 It consists of a moving part 136c formed with a small width, a horizontal locking part 136b formed by extending from the lower end of the moving part 136c, and a vertical locking part 136a formed by extending from the lower end of the horizontal locking part 136b. do.

Here, the horizontal locking portion 136b is formed to be wider than the width (d1) of the moving groove 132, it is formed narrower than the width (d2) of the expansion groove (133). And the cross section should be formed to a size that can be fitted into the expansion groove 133 as a whole.

The vertical locking portion 136a is formed to have a size that the cross section cannot fit into the expansion groove 133. That is, the width is preferably formed wider than the width of the expansion groove 133.

Therefore, when the sliding member 136 is located in the expansion groove 133, the support plate 135 pushes the sliding member 136 upward by the restoring member 134. As a result, the horizontal locking portion 136b is fitted into the expansion groove 133. At this time, even if a force is applied in the horizontal direction from the outside, the sliding member 136 is caught in the expansion groove 133 does not move in the horizontal direction. Therefore, the second buckle 120 also does not move.

In order to adjust the position of the second buckle 120 according to the user's sitting key, the sliding member 136 is pushed toward the restoring member 134. As a result, the moving part 136c is located in the expansion groove 133. At this time, if the sliding member 136 is moved toward the length ?? of the moving groove 132, it can move without being caught.

When the force applied to the sliding member 136 is removed at an appropriate position after the movement, the support plate 135 pushes the sliding member 136 upward by the restoring force of the restoring member 134. As a result, the horizontal locking portion 136b is fitted into the expansion groove 133, and as described above, even if a force is applied in the horizontal direction from the outside, the sliding member 136 is caught in the expansion groove 133 and moved in the horizontal direction. It becomes impossible.

As described above, the seat belt device of the present invention is provided with a second tongue plate and a second buckle separately, so that the chest belt can be located on the infant's chest when the infant is seated, so that adults and Can be used as a child.

Therefore, not only can the safety of the infant be reduced, but also the cost can be reduced.

In addition, by providing a position adjusting device, it is possible to adjust the position of the chest belt according to the sitting height of the infant. Therefore, there is an advantage that can be applied flexibly to infants of various ages.

According to the embodiment of the present invention as described above, various effects including the following matters can be expected. However, the present invention is not achieved by exerting all of the following effects.

First, the seat belt device of the present invention is provided with a second tongue plate and a second buckle separately, so that when the infant is seated, the chest belt can be located on the infant's chest, without having a separate car seat for both adults and children Can be used. Therefore, not only can the safety of the infant be reduced, but also the cost can be reduced.

In addition, by providing a position adjusting device, the position of the chest belt can be adjusted according to the sitting height of the infant. Therefore, there is an advantage that can be applied flexibly to infants of various ages.

Claims (15)

A seat belt apparatus having a chest belt across a chest of a seated occupant seated on a seat, A chest belt side engaging member coupled between both ends of the chest belt; And A seat side engaging member fixed to the seat frame and formed to be detachable from the chest belt side engaging member; Seat belt device, characterized in that configured to include. The method of claim 1, The seat side coupling member is a buckle, The chest belt side engaging member is a tongue plate detachable to the buckle The seat belt device characterized by the above-mentioned. The method of claim 2, The tongue plate, Tongue plate body detachable from the buckle; An engagement ring formed integrally with the tongue plate body and surrounding the seat belt; An opening part formed by opening a portion of the coupling ring; And An opening and closing member for opening and closing the opening; Seat belt device comprising a. The method of claim 3, wherein A thread is formed on an outer surface of at least one of the open end side ends of the coupling ring, The opening and closing member is formed in a pipe shape so that the coupling ring is fitted into the inner hole, the seat belt device, characterized in that the thread is formed on the inner peripheral surface of the inner hole to be coupled to the thread of the coupling ring. The method of claim 1, The seat side coupling member, And a seat belt fixed to said seat side in a direction opposite to a direction in which a seated person's head is located with respect to said chest belt. A belt retractor fixed to the frame of the transportation device; A seat belt having one end coupled to the retractor and the other end fixed to the frame; A first buckle fixed to an opposite side of said seat belt relative to a seated person; A first tongue plate coupled to the seat belt and formed to be detachable from the first buckle; A chest belt side engaging member coupled to the seat belt between the first tongue plate and the top of the seat belt; And A seat side engaging member fixed to the frame at a position different from the first buckle; Seat belt device, characterized in that configured to include. The method of claim 6, The seat side coupling member is formed of a second buckle, The chest belt side engaging member is a second tongue plate detachable to the buckle The seat belt device characterized by the above-mentioned. The method of claim 7, wherein The tongue plate, Tongue plate body detachable from the buckle; An engagement ring formed integrally with the tongue plate body and surrounding the seat belt; An opening part formed by opening a portion of the coupling ring; And An opening and closing member for opening and closing the opening; Seat belt device comprising a. The method of claim 8, A thread is formed on an outer circumferential surface of at least one of the open end side ends of the coupling ring, The opening and closing member is formed in a pipe shape so that the coupling ring is fitted into the inner hole, the seat belt device, characterized in that the thread is formed on the inner peripheral surface of the inner hole to be coupled to the thread of the coupling ring. The method of claim 6, The seat side coupling member, The seat belt device of claim 1, wherein the seat belt is fixed in a direction opposite to the direction in which the head of the seated person is positioned, based on the chest belt that crosses the seated person's chest in which the first buckle and the first tongue plate are coupled. The method according to any one of claims 1 to 10, Position adjusting device that can adjust the position of the seat-side coupling member; Seat belt device further comprises. The method of claim 11, The position adjusting device, A support member fixed to the seat side; A moving groove formed on one surface of the support member; And A sliding member fitted to move in the longitudinal direction of the movable groove and fixed to the seat side coupling member; Seat belt device comprising a. The method of claim 12, A portion of the movable groove is expanded to form an expansion groove, The sliding member is a seat belt device, characterized in that the width of the moving portion is not caught in the moving groove, the width is caught in the moving groove, the horizontal locking portion is not caught in the expansion groove. The method of claim 13, The moving portion is formed to be adjacent to the moving groove compared to the horizontal locking portion, And a restoring member supporting the sliding member to apply a restoring force to the sliding member toward the moving groove. A tongue plate body formed to be attached to and detached from the buckle of the seat belt; An engagement ring formed integrally with the tongue plate body and surrounding the seat belt; An opening part formed by opening a portion of the coupling ring; And An opening and closing member for opening and closing the opening; Tongue plate comprising a.

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