JP2008195166A - Seat belt device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat belt device capable of providing impulse to an occupant at an accurate position. <P>SOLUTION: In this seat belt device 10, a first extendable material 32 and a second extendable material 36 connected to a comfortable function part 34 are secured to the ends 18A of a tongue 24 and a seat belt 18 or the side wall 20 of a cabin 14. When the seat belt 18 is fastened to the occupant, the first extendable material 32 and the second extendable material 36 apply tensions to the comfortable function part 34. Consequently, the comfortable function part 34 disposed on the abdominal part of the occupant at an accurate position can apply impulse thereto irrespective of the physique of the occupant. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a seat belt device in which a seat belt is mounted on a vehicle occupant.

  As a seat belt device, a duct or a tube is provided along a longitudinal direction of a seat belt (belt portion), and air or a heat medium whose temperature is adjusted is flowed through the duct or tube, thereby warming an occupant. Some are cooled (see, for example, Patent Document 1).

However, in this seat belt device, a duct or a tube is provided in the entire longitudinal direction excluding one end of the seat belt (belt portion), and air or a heat medium whose temperature is adjusted flows. For this reason, the temperature-adjusted air or heat medium flows through the entire portion of the seat belt (belt portion) in contact with the occupant and the portion not in contact with the occupant.
JP-A-2005-219700

  In view of the above facts, an object of the present invention is to obtain a seat belt device that can give a stimulus to an accurate position of an occupant.

  The seat belt device according to claim 1 includes a seat belt that can be mounted on a vehicle occupant, an insertion portion that is supported by the vehicle side, and has an insertion portion that is movably inserted in a longitudinal intermediate portion of the seat belt. A first tensile force imparting portion supported by the insertion portion on the side, and a tensile force can be imparted from the first tensile force imparting portion supported on the other end side of the first tensile force imparting portion. A stimulus applying unit that is capable of applying a stimulus, and one end side of which is supported by the stimulus applying unit, and the other end side of the seat belt on the opposite side of the stimulus applying unit from the first tensile force applying unit. Or the 2nd tension | tensile_strength provision part supported by the vehicle side and enabled to give tension | tensile_strength to the said stimulus provision part is provided.

  The seat belt device according to claim 2 includes a seat belt that can be attached to a vehicle occupant, an insertion portion that is movably inserted in a longitudinal intermediate portion of the seat belt, and is supported on the vehicle side, and one end The side is supported by the seat belt and the other end is supported by the insertion part, and the adjustment part is inserted in a state where the adjustment part is folded back, so that the passenger can be stimulated. A stimulus applying unit, and one end side is supported by the stimulus applying unit, and the other end side is supported on the seat belt or the vehicle side on the opposite side of the adjustment unit with respect to the stimulus applying unit, and the adjusting unit and A tensile force imparting portion that is capable of imparting a tensile force to the stimulus imparting portion.

  In the seat belt device according to the first aspect, the seat belt can be attached to the vehicle occupant, and the insertion portion through which the intermediate portion in the longitudinal direction of the seat belt is movably inserted is supported on the vehicle side.

  Here, one end side of the first tensile force applying part is supported by the insertion part, the stimulus applying part is supported by the other end side of the first tensile force applying part, and one end side of the second tensile force applying part is stimulated. While being supported by the applying portion, the other end side of the second tensile force applying portion is supported on the seat belt or the vehicle side on the side opposite to the first tensile force applying portion with respect to the stimulus applying portion.

  For this reason, when the seat belt is mounted on the occupant, the first tensile force applying unit and the second tensile force applying unit apply tensile force to the stimulus applying unit, so that the stimulus applying unit can be positioned accurately. The stimulus applying unit can apply a stimulus to an accurate position of the occupant.

  In the seat belt device according to the second aspect, the seat belt can be attached to the vehicle occupant, and the insertion portion through which the middle portion in the longitudinal direction of the seat belt is movably inserted is supported on the vehicle side.

  Here, one end side of the adjustment unit is supported by the seat belt, and the other end side of the adjustment unit is supported by the insertion part, and the adjustment part is inserted into the stimulus imparting part so as to be movable. Furthermore, one end side of the tension applying portion is supported by the stimulus applying portion, and the other end side of the tension applying portion is supported on the seat belt or the vehicle side on the side opposite to the adjusting portion with respect to the stimulus applying portion. The force applying unit can apply a tensile force to the adjusting unit and the stimulus applying unit.

  For this reason, when the seat belt is mounted on the occupant, the tensile force applying unit applies the tensile force to the adjusting unit and the stimulus applying unit and the adjusting unit is stretched, so that the stimulus applying unit is positioned accurately. The stimulus applying unit can apply a stimulus to an accurate position of the occupant.

[First Embodiment]
FIG. 1 is a perspective view of a main part of a vehicle 12 configured by applying the seat belt device 10 according to the first embodiment of the present invention, as viewed obliquely from the left front of the vehicle. In the drawings, the front side of the vehicle is indicated by an arrow FR, the outer side in the vehicle width direction (right side of the vehicle) is indicated by an arrow OUT, and the upper side is indicated by an arrow UP.

  In the vehicle 12 according to the present embodiment, a seat 16 (for example, a driver seat or a passenger seat disposed on the vehicle front side and the vehicle right side of the vehicle compartment 14) is provided in the passenger compartment 14. (Omitted) is seated. The seat 16 includes a seat cushion 16A and a seat back 16B. The seat cushion 16A is horizontally disposed at a lower end portion of the seat 16, and the seat back 16B is disposed from the rear end of the seat cushion 16A. Stands on the upper side.

  As shown in FIGS. 2 and 3, the occupant wears a seat belt 18 (webbing), and the base end side of the seat belt 18 is wound around a winding device (not shown) as a storage means. . The winding device is fixed in the side wall 20 (for example, in the pillar) of the passenger compartment 14 on the outer side and the lower side of the seat 16 in the vehicle width direction, and the winding device has the seat belt 18 on the base end side (winding direction). Is energized.

  The seat belt 18 is movably inserted in a shoulder anchor 22 as an insertion portion, and the shoulder anchor 22 is locked to a side wall 20 (for example, a pillar) of the vehicle compartment 14 on the outer side and the upper side of the seat 16 in the vehicle width direction. ing. The seat belt 18 extends between the winding device and the shoulder anchor 22 from the side wall 20 of the passenger compartment 14 into the passenger compartment 14, and the shoulder anchor 22 is disposed in the passenger compartment 14. The shoulder anchor 22 may be locked to the vehicle width direction outer side and upper portion of the seat back 16B.

  The front end 18A of the seat belt 18 is locked to a side wall 20 (for example, a pillar or a rocker) of the passenger compartment 14 on the outer side and the lower side of the seat 16 in the vehicle width direction. The front end 18A of the seat belt 18 may be locked to a portion of the seat cushion 16A on the outer side in the vehicle width direction.

  The seat belt 18 is movably inserted between a shoulder anchor 22 and a tip 18A so as to be movable in a tongue 24 as an insertion portion, and the tongue 24 is detachably attached to an inner anchor 26 (buckle) as a support portion. ing. The inner anchor 26 is locked to the floor plate of the passenger compartment 14 on the inner side and the lower side of the seat 16 in the vehicle width direction. The inner anchor 26 may be locked to a portion of the seat cushion 16A on the inner side in the vehicle width direction.

  As described above, the seat belt 18 is formed into the shoulder belt portion 28 between the portion supported by the shoulder anchor 22 and the portion supported by the tongue 24, and from the shoulder portion on the outer side of the occupant in the vehicle width direction. It is attached to the inner abdomen (waist) at an angle, and between the portion supported by the tongue 24 and the tip 18A, it is made into a lap belt portion 30 so that the vehicle can enter the occupant's abdomen (waist) from the inside in the vehicle width direction. It is mounted laterally across the width direction outside.

  One end of a rubber belt-like first stretchable material 32 as a first tensile force imparting portion is fixed to the tongue 24, and the first stretchable material 32 is disposed on the occupant side of the lap belt portion 30. It has elasticity (biasing force) in the longitudinal direction and is elastically stretchable in the longitudinal direction.

  One end of a rectangular parallelepiped comfort function part 34 as a stimulus applying part is fixed to the other end of the first stretchable material 32, and the comfort function part 34 is arranged on the passenger side of the lap belt part 30 and is provided to the passenger. By being in contact with the occupant, at least one of a heating process, a cooling process, a vibration applying process, and a pressing process using a protrusion can be performed.

  One end of a rubber belt-like second stretchable material 36 as a second tensile force applying portion is fixed to the other end of the comfort function portion 34, and the second stretchable material 36 is on the passenger side of the lap belt portion 30. And has elasticity (biasing force) in the longitudinal direction so as to be elastically stretchable in the longitudinal direction. The other end of the second elastic material 36 is fixed to the side wall 20 of the passenger compartment 14 near the front end 18A of the seat belt 18 or the front end 18A of the seat belt 18, and the elasticity of the first elastic material 32 and the second elastic material 36. By adjusting the force and the length in the longitudinal direction, the elastic force (tensile force) of the first elastic material 32 and the elastic force (tensile force) of the second elastic material 36 when the seat belt 18 is attached to the occupant. Thus, regardless of the length of the lap belt portion 30 (the occupant's physique), the comfort function portion 34 is disposed particularly in the center in the left-right direction of the occupant's abdomen (particularly in the longitudinal center of the lap belt portion 30).

  Next, the operation of the present embodiment will be described.

  In the seat belt device 10 having the above-described configuration, the tongue 24 into which the seat belt 18 is movably inserted is attached to the inner anchor 26, whereby the seat belt 18 is attached to the occupant, and the shoulder belt portion of the seat belt 18. 28 is attached obliquely from the shoulder on the outer side in the vehicle width direction to the abdomen on the inner side in the vehicle width direction, and the lap belt portion 30 of the seat belt 18 extends from the inner side in the vehicle width direction to the outer side in the vehicle width direction. It is mounted horizontally.

  Here, one end of the first elastic material 32 is fixed to the tongue 24, one end of the comfort function part 34 is fixed to the other end of the first elastic material 32, and one end of the second elastic material 36 is a comfortable function. The other end of the second stretchable material 36 is fixed to the front end 18A of the seat belt 18 or the side wall 20 of the passenger compartment 14 in the vicinity of the front end 18A of the seat belt 18.

  As a result, when the seat belt 18 is mounted on the occupant, the first stretchable material 32 and the second stretchable material 36 apply an elastic force (tensile force) to the comfort function portion 34, so that the occupant's physique (wrap) Regardless of the length of the belt portion 30), the comfort function portion 34 is disposed at the center (exact position) of the occupant's abdomen, particularly in the left-right direction. For this reason, the comfort function part 34 can be arranged particularly in the center in the left-right direction of the abdomen of the occupant only by wearing the seat belt 18 by the occupant. At least one of a heating process, a cooling process, a vibration applying process, and a pressing process using protrusions can be performed. Therefore, the occupant does not need to adjust the position of the comfort function part 34 specially, and the seat belt 18 and the comfort function part 34 can be improved.

  Furthermore, since the comfort function unit 34 is disposed only at a specific position of the occupant, energy efficiency can be improved when the comfort function unit 34 consumes energy.

  In the present embodiment, the comfort function part 34 is arranged on the occupant side of the lap belt part 30, but the comfort function part 34 may be arranged on the occupant side of the shoulder belt part 28. In this case, one end of the first elastic material 32 is fixed to the tongue 24, one end of the comfort function part 34 is fixed to the other end of the first elastic material 32, and one end of the second elastic material 36 is a comfortable function. The other end of the second stretchable material 36 is fixed to the shoulder belt portion 28 on the opposite side of the tongue 24 with respect to the side wall 20 or the comfort function portion 34 in the vicinity of the shoulder anchor 22. Is done. Alternatively, one end of the first elastic material 32 is fixed to the shoulder anchor 22, one end of the comfort function part 34 is fixed to the other end of the first elastic material 32, and one end of the second elastic material 36 is a comfortable function. While being fixed to the other end of the portion 34, the other end of the second stretchable material 36 is fixed to the shoulder belt portion 28 or the tongue 24 on the opposite side of the shoulder anchor 22 with respect to the comfort function portion 34. As a result, when the seat belt 18 is worn on the occupant, the first stretchable material 32 and the second stretchable material 36 apply an elastic force (tensile force) to the comfort function part 34, so that the occupant's physique (shoulder) Regardless of the length of the belt portion 28), the comfort function portion 34 is disposed particularly on the shoulder or chest of the occupant.

[Second Embodiment]
FIG. 4 shows a seatbelt device 50 according to a second embodiment of the present invention in a perspective view as seen from the left rear side of the vehicle.

  The seat belt device 50 according to the present embodiment has substantially the same configuration as that of the first embodiment, but differs in the following points.

  One end of a belt-like adjustment belt 52 as an adjustment portion is fixed to the tongue 24, and the adjustment belt 52 is disposed on the occupant side of the lap belt portion 30 and the other end is an occupant of the lap belt portion 30. It is fixed to the side.

  A cylindrical pulley 54 is rotatably supported at one end of the comfort function part 34, and the adjustment belt 52 is movably inserted into a gap (insertion part) between the comfort function part 34 and the pulley 54. As a result, the adjustment belt 52 is wound around the pulley 54 in a state where the intermediate portion in the longitudinal direction is folded back.

  At the other end of the comfort function portion 34, one end of a rubber belt-like stretchable material 56 as a tensile force imparting portion is fixed, and the stretchable material 56 is disposed on the occupant side of the lap belt portion 30, It has elasticity (biasing force) in the longitudinal direction and is elastically stretchable in the longitudinal direction. The other end of the elastic material 56 is fixed to the side wall 20 of the passenger compartment 14 in the vicinity of the front end 18A of the seat belt 18 or the front end 18A of the seat belt 18, and the elastic force and the longitudinal length of the elastic material 56 are adjusted. Thus, when the seat belt 18 is attached to the occupant, the adjustment belt 52 is stretched by the elastic force (tensile force) of the stretchable material 56, and is comfortable regardless of the length of the lap belt portion 30 (the occupant's physique). The functional part 34 is disposed particularly in the center in the left-right direction of the passenger's abdomen (particularly in the center in the longitudinal direction of the lap belt 30).

  For example, as shown in FIG. 5 (A), from the state where the comfort function part 34 is arranged at the longitudinal center of the lap belt part 30, the lap belt part 30 is only L in the longitudinal direction as shown in FIG. 5 (B). When the length becomes longer, the comfort function part 34 moves toward the tongue 24 by L / 2, so that the comfort function part 34 is still arranged at the longitudinal center of the lap belt part 30.

  For this reason, also in this embodiment, the same operation and effect as the first embodiment can be obtained.

  In the present embodiment, the comfort function part 34 is arranged on the occupant side of the lap belt part 30, but the comfort function part 34 may be arranged on the occupant side of the shoulder belt part 28. In this case, one end of the adjustment belt 52 is fixed to the tongue 24, and the adjustment belt 52 is wrapped around the pulley 54 of the comfort function part 34, and the other end of the adjustment belt 52 is connected to the shoulder belt part 28. One end of the stretchable material 56 is fixed to the other side of the comfort function unit 34 and the other end of the stretchable material 56 is fixed to the passenger side, and the side wall 20 of the cabin 14 near the shoulder anchor 22 or the comfort function unit 34. On the other hand, it is fixed to a shoulder belt portion 28 opposite to the tongue 24. Alternatively, one end of the adjustment belt 52 is fixed to the shoulder anchor 22, and the adjustment belt 52 is wrapped around the pulley 54 of the comfort function unit 34, and the other end of the adjustment belt 52 is connected to the shoulder belt unit 28. The shoulder belt portion fixed to the passenger side and having one end of the stretchable material 56 fixed to the other end of the comfort function portion 34 and the other end of the stretchable material 56 opposite to the shoulder anchor 22 with respect to the comfort function portion 34. 28 or tongue 24. As a result, when the seat belt 18 is mounted on the occupant, the adjustment belt 52 is stretched by the elastic force (tensile force) of the stretchable material 56, so that the occupant's physique (the length of the shoulder belt portion 28) is concerned. The comfort function unit 34 is disposed on the occupant, particularly on the shoulder or chest.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view seen from an oblique left front side of a vehicle showing a state in which a seat belt is stored in a vehicle configured by applying a seat belt device according to a first embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vehicle configured by applying a seat belt device according to a first embodiment of the present invention, seen from an obliquely left front side of a vehicle, showing a state in which a seat belt is attached to an occupant. It is the front view seen from the vehicle front which shows the state where the seat belt in the seat belt device concerning a 1st embodiment of the present invention was equipped to the crew member. It is the perspective view seen from the vehicle rear diagonal left which shows the state with which the seatbelt in the seatbelt apparatus which concerns on the 2nd Embodiment of this invention was mounted | worn by the passenger | crew. (A) And (B) is explanatory drawing which shows the relationship between the length of the lap belt part of the seatbelt in the seatbelt apparatus which concerns on the 2nd Embodiment of this invention, and the position of a comfort function part.

Explanation of symbols

10 Seat belt device 18 Seat belt 22 Shoulder anchor (insertion part)
24 tongue (insertion part)
32 1st elastic material (1st tension giving part)
34 Comfort function part (stimulation part)
36 Second stretchable material (second tensile force imparting part)
50 Seat belt device 52 Adjustment belt (adjustment part)
56 Stretchable material (tensile force imparting part)

Claims (2)

A seat belt that can be worn by a vehicle occupant;
A longitudinally intermediate portion of the seat belt is movably inserted, and an insertion portion supported on the vehicle side;
A first tensile force application portion supported at one end side by the insertion portion;
A stimulus applying unit supported on the other end side of the first tensile force applying unit and capable of applying a tensile force from the first tensile force applying unit, and capable of applying a stimulus to an occupant;
One end side is supported by the stimulus applying unit, and the other end side is supported on the seat belt or the vehicle side on the opposite side of the first tensile force applying unit with respect to the stimulus applying unit. A second tensile force imparting portion capable of imparting a tensile force;
A seat belt device comprising: A seat belt that can be worn by a vehicle occupant;
A longitudinally intermediate portion of the seat belt is movably inserted, and an insertion portion supported on the vehicle side;
One end side is supported by the seat belt, and the other end side is supported by the insertion portion, and an adjustment unit,
A stimulus applying unit that is movably inserted in a state in which the adjustment unit is folded, and that is capable of applying a stimulus to an occupant;
One end side is supported by the stimulus applying unit, and the other end side is supported on the seat belt or the vehicle side opposite to the adjustment unit with respect to the stimulus applying unit, and is pulled by the adjustment unit and the stimulus applying unit. A tensile force imparting portion capable of imparting a force;
A seat belt device comprising:

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