JP2011063226A - Occupant restraint device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an occupant restraint device for a vehicle mountable in the reduced mounting space of the vehicle while suppressing the extraction resistance of a seat belt caused when the seat belt is extracted from a winder. <P>SOLUTION: An air belt device 10 includes a seat belt 12 for restraining an occupant P sitting on a vehicle seat 11, an air belt 25 which is provided to the shoulder belt part 12A of the seat belt 12 and inflated by receiving the supply of gas, a belt guide 24 which is attached to the shoulder part 16A of a seat backrest 16 and through which the air belt 25 is inserted, a shoulder anchor 34 for folding back the seat belt 12 which is hung thereon at the rear of the belt guide 24 in the longitudinal direction of the vehicle to the front side of the vehicle, and a retractor 14 which is disposed between the belt guide 24 and the shoulder anchor 34 in side view and by which the seat belt 12 is wound up so as to be unwound. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicle occupant restraint device in which an inflating portion is provided on a seat belt.

  A technique is known in which a seat belt is folded back by a shoulder anchor disposed behind the shoulder portion of the seat back, and the seat belt is wound up by a retractor disposed directly below the shoulder anchor (see, for example, Patent Document 1). ). Moreover, the technique which provided the belt guide which lets the expansion | swelling part provided in the seatbelt pass to the shoulder part of a seat back is known (for example, refer patent documents 2-5).

JP 2007-022437 A JP-T-2001-521462 JP-T-2002-527282 JP 2007-210436 A JP 2007-210432 A

  By the way, when the seat belt is wound around a shoulder anchor or a belt guide with a thick and wide inflated portion with respect to the webbing that is a general portion of the seat belt, the pullout resistance tends to increase when the occupant wears the seat belt. On the other hand, the arrangement of the retractor is limited. For example, depending on the vehicle, when it is not possible to secure a space for mounting the retractor at a sufficient distance directly below the shoulder anchor, or the shoulder belt (webbing) passes through the cargo compartment, and the use space of the cargo compartment is limited. May end up.

  An object of the present invention is to obtain a vehicle occupant restraint device that can reduce a mounting space on a vehicle while suppressing a pull-out resistance from a seat belt retractor.

  A vehicle occupant restraint device according to a first aspect of the present invention is a seat belt for restraining an occupant seated on a vehicle seat, and at least a part in a longitudinal direction of a portion of the seat belt for restraining an occupant's upper body. Or at least a part of the seat belt that restrains the occupant's upper body in the longitudinal direction, and is inflated when supplied with gas, and a shoulder of a seat back of the vehicle seat A belt guide member that is provided at a portion and regulates a position in the width direction of the inflatable portion in the seat belt, and is disposed on the rear side of the vehicle with respect to the belt guide member, and is wound around so that the seat belt is folded back to the front side of the vehicle Arranged between the belt guide member and the wrapping member in the vehicle longitudinal direction so that the seat belt can be pulled out It is equipped with a, and the winding device to take care.

  In the vehicle occupant restraint device according to claim 1, when the occupant wears a seat belt for restraining the upper body, a portion of the seat belt that is wound around the winding device is pulled out from the winding device, The seat belt is attached to the occupant by locking it to the vehicle seat or the vehicle body with a locking tool or the like. For example, when a vehicle collision occurs in this mounted state, the inflating portion is inflated to protect the occupant. At this time, the belt guide member contributes to the expansion of the expansion portion at an appropriate position or posture.

  Here, in this vehicle occupant restraint device, the seat belt is folded back to the front of the vehicle by a small wrapping member as compared with the winding device, so that the winding device is directly seated without passing through the wrapping member. Compared with the structure which winds up a belt, the length of the expansion | swelling part extended straight back from the belt guide member of a seat back can be set long. For this reason, the expansion part is not wound around the winding member, or the length of the expansion part passing through the winding member is set short, and the pull-out resistance of the seat belt is suppressed. Further, since the winding device is disposed between the belt guide member and the winding member in the vehicle front-rear direction (in a side view), the winding device is used by utilizing the space between the seat back and the winding member. Can be arranged.

  Thus, in the vehicle occupant restraint device according to the first aspect, it is possible to reduce the mounting space on the vehicle while suppressing the pull-out resistance of the seat belt from the winding device.

  The vehicle occupant restraint device according to a second aspect of the present invention is the vehicle occupant restraint device according to the first aspect of the invention, wherein the wrapping member has the expansion in the seat belt in a state where the seat belt is not attached to the occupant. It is arranged at a position in the vehicle front-rear direction where the set portion of the part is not wound.

  In the vehicle occupant restraint device according to claim 2, the inflatable portion of the seat belt is not wound around the winding member in a state where the seat belt is wound around the winding device due to the occupant not wearing the seat belt. Therefore, in other words, the seat belt inflating portion is not wound around the winding member in the entire process of pulling out the seat belt, so that the pull-out resistance of the seat belt is suppressed. Note that the end portion of the expanding portion may be in non-contact with the winding member, or may be in contact with the winding member in a manner in which bending does not occur.

  A vehicle occupant restraint device according to a third aspect of the present invention is the vehicle occupant restraint device according to the second aspect, wherein the seat belt includes a webbing wound around the winding device, the webbing, and the inflating portion. A portion to which the webbing is reinforced, and the portion to be reinforced is disposed on the belt guide member side with respect to the winding member in a state where the seat belt is not attached to an occupant. Or it is set to the range which is wound around the winding member and is not wound around the winding device.

  4. The vehicle occupant restraint device according to claim 3, wherein the reinforced portion is provided between the webbing, which is a general portion of the seat belt, and the inflatable portion, and is reinforced with low rigidity (easy to bend) with respect to the inflatable portion. The part is located at a position on the belt guide member side where the seat belt is not wound around the winding member in a state where the seat belt is wound around the winding device by the occupant not wearing the seat belt, or is wound around the winding member However, it is located at a position where it is not taken up by the take-up device. For this reason, in the configuration having the reinforced portion, the former is compared with the case where the reinforced portion is wound around the winding member, and the latter is compared with the case where the reinforced portion is wound around the winding device. The pull-out resistance of the belt is suppressed.

  As described above, the vehicle occupant restraint device according to the present invention has an excellent effect that the mounting space on the vehicle can be reduced while the pulling resistance from the seat belt retractor is kept small.

1 is a perspective view showing a schematic overall configuration of an air belt device according to a first embodiment of the present invention. 1 is a side view schematically showing an air belt device according to a first embodiment of the present invention. 1 is a side view schematically showing a state in which an occupant wears a seat belt in an air belt device according to a first embodiment of the present invention. In the air belt device concerning a 1st embodiment of the present invention, it is a side view showing typically the state where the crew member was restrained with the seat belt in the inflated deployment state of the air belt. It is a top view which expands and shows the path | route of the seatbelt which comprises the air belt apparatus which concerns on the 1st Embodiment of this invention. It is a front view which expands and shows the path | route of the seatbelt which comprises the air belt apparatus which concerns on the 1st Embodiment of this invention. It is sectional drawing which shows typically the structure of the air belt which comprises the air belt apparatus which concerns on the 1st Embodiment of this invention. It is a side view which shows typically the air belt apparatus which concerns on the 2nd Embodiment of this invention.

  An air belt device 10 as a vehicle occupant restraint device according to a first embodiment of the present invention will be described with reference to FIGS. In addition, arrow FR, arrow UP, arrow IN, and arrow OUT that are appropriately described in each figure indicate the forward direction (traveling direction), the upward direction, the inner side, and the outer side of the vehicle to which the air belt device 10 is applied, respectively. These substantially coincide with one side (right side) and the other side (left side) of the vehicle seat 11 to which the air belt device 10 is applied.

  FIG. 1 is a perspective view showing a non-use state (non-wearing state) of the air belt device 10 applied to the vehicle seat 11. FIG. 2 is a schematic side view showing the non-use state of the air belt device 10. As shown in these drawings, the air belt device 10 includes a retractor 14 as a winding device that winds up one end side (a webbing 32 described later) of the seat belt 12 so as to be drawable.

  As will be described in detail later, the retractor 14 is disposed behind the seat back 16 constituting the vehicle seat 11 in the vehicle front-rear direction, and is fixed to an upper back panel 15 as a vehicle body in this embodiment. In addition, the vehicle seat 11 according to this embodiment is a driver seat, a passenger seat, or a rear seat of a two-seat vehicle. The other end of the seat belt 12 is supported by the vehicle seat 11 via an anchor 19 disposed on the rear side of the seat cushion 18 constituting the vehicle seat 11.

  In this non-use state, the seat belt 12 extends in the vehicle vertical direction along the front surface of the seat back 16 at the end of the vehicle seat 11 on the vehicle width direction outer side (entrance / exit side). A tongue plate 20 is provided at a substantially intermediate portion in the vertical direction of the portion along the front surface of 16. The tongue plate 20 can be engaged with and disengaged from the buckle 22 disposed on the opposite side of the vehicle seat 11 in the width direction.

  In this air belt device 10, the tongue plate 20 is locked to the buckle 22, so that the shoulder belt portion 12 </ b> A extending from the shoulder portion of the seat back 16 to the tongue plate 20 is slanted over the occupant's upper body. Yes. In this state, the seat belt 12 restrains the upper body of the seated occupant P in the shoulder belt portion 12A as shown in FIG. 3, and the lap belt portion 12B from the tongue plate 20 to the anchor restrains the waist of the seated occupant P. It is like that.

  Therefore, the air belt device 10 is an air belt device based on a three-point seat belt device. In this embodiment, the shoulder belt portion 12A corresponds to a seat belt for restraining the upper body of the occupant. Further, in the air belt device 10 in which the retractor 14 is disposed behind the seat back 16 as described above, the seat belt 12 mounted by the seated occupant P of the vehicle seat 11 is passed over the shoulder 16A of the seat back 16. It has become so. In this embodiment, the position of the seat belt 12 with respect to the seat back 16 is regulated by a belt guide 24 as a belt guide member (described later) provided on the shoulder portion 16A of the seat back 16.

  At least a part of the seat belt 12 including the shoulder belt portion 12A is configured as an air belt 25 as an inflatable belt portion that is inflated and deployed by receiving a gas supply from an inflator (not shown). The air belt 25 is a state in which the seat belt 12 is worn by the seated occupant P of the vehicle seat 11 and at least a portion of the seat back 16 that is mainly passed through the belt guide 24 and the shoulder belt portion 12A. It is set to the part over the entire length.

  Supplementing the air belt 25, as illustrated in FIG. 7, the air belt 25 includes a cover 26 as a belt body, a protective cloth 27 provided inside the cover 26, and an extendable / contractible provided inside the protective cloth 27. The mesh webbing 28, which is a strong strength retaining member, and the airbag 30 provided in a folded state inside the mesh webbing 28 are mainly configured.

  The air belt 25 is inflated and deployed as a whole as shown in FIG. 4 when the airbag 30 is inflated by receiving gas supply from the inflator. Although not shown, the inflator in this embodiment is provided on the buckle 22 side of the seat cushion 18 and supplies gas to the air belt 25 (air bag 30) via the flexible hose, the buckle 22, and the tongue plate 20. It is like that. The inflator is operated by an ECU (not shown) to supply gas to the airbag 30 when, for example, a frontal collision (inevitable) and a side collision (inevitable) of a vehicle are detected or predicted.

  Further, in this embodiment, the air belt 25 is greatly expanded and deployed in the vehicle vertical direction with the belt guide 24 restricting the expansion and deployment in the vehicle width direction. Specifically, the belt guide 24 has a substantially triangular frame shape (annular shape) as shown in FIG. 1 in the initial state, and is configured to suppress positional deviation of the seat belt 12 with respect to the shoulder portion 16A. Yes. The belt guide 24 has a movable arm 24C whose outer portion in the seat width direction (vehicle width direction) rotates around a hinge 24B at the lower end with respect to a base portion 24A fixed to the shoulder portion 16A. The movable arm 24 </ b> C is engaged with the distal end of a fixed arm 24 </ b> D that forms the inner side in the seat width direction of the belt guide 24, and the belt guide 24 is held in the frame shape as a whole. The movable arm 24C receives the inflation and deployment pressure of the air belt 25, and its tip rotates about a hinge 24B in a direction away from the fixed arm 24D in the vehicle width direction. The above rotation is prohibited.

  Therefore, the belt guide 24 suppresses the expansion of the air belt 25 in the seat width direction by the movable arm 24C and the fixed arm 24D rotated as described above, and the air belt 25 is interposed between the movable arm 24C and the fixed arm 24D. It is set as the structure which permits the expansion and expansion | deployment of 25 to the vehicle upper direction. As a result, the air belt 25 is inflated and deployed on the outer side in the vehicle width direction with respect to the head H of the occupant P, as shown in FIG.

  The webbing 32 constituting the portion other than the air belt 25 in the seat belt 12 is joined by sewing or the like to at least the mesh webbing 28 constituting the air belt 25 and the longitudinal end of the airbag 30 by sewing or the like. The air belt 25 configured as described above is thicker and wider than the webbing 32. The retractor 14 in this embodiment is configured to wind up only the webbing 32 in the seat belt 12 so that it can be pulled out.

  The air belt device 10 includes a shoulder anchor 34 as a winding member for turning the seat belt 12 back to the front of the vehicle behind the seat back 16. As shown in FIGS. 2 to 4, the shoulder anchor 34 includes a winding part 35 around which the seat belt 12 is wound, and a fixing part 36 that extends to the rear of the winding part 35 and is fixed to the vehicle body. It is configured. The shoulder anchor 34 is fixed to the vehicle body by fastening or the like in the vicinity of the rear end of the passenger compartment at the fixing portion 36.

  The coil 12 wound around the shoulder anchor 34 and folded back to the front side of the vehicle is wound so that it can be pulled out to the retractor 14 disposed between the shoulder anchor 34 and the belt guide 24 in a side view (in the vehicle front-rear direction). It has been. The retractor 14 is a component larger than the shoulder anchor 34 in at least the vehicle front-rear direction and the vertical direction, and is fixed to the vehicle front end side (the back side of the seat back 16) of the upper back panel 15. Below the upper back panel 15 is a space R such as an underfloor space in which a compartment or a muffler or the like partitioned from the passenger compartment C is disposed.

  In this embodiment, as shown in FIG. 5 and FIG. 6, the shoulder anchor 34 is disposed almost directly behind the belt guide 24, and the retractor 14 is located on the outer side in the vehicle width direction with respect to the belt guide 24 and the shoulder anchor 34. It is arranged with an offset. 2 and 6, the winding portion 35 of the shoulder anchor 34 is disposed slightly below the vehicle vertical direction with respect to the base portion 24A of the belt guide 24, and the retractor 14 is provided with the shoulder anchor 34. On the other hand, it is arranged on the lower side in the vehicle vertical direction.

  Further, in the air belt apparatus 10, the arrangement of the shoulder anchors 34 is determined so that the air belt 25 is not wound around the winding portion 35 of the shoulder anchor 34 in the non-use state shown in FIG. ing. In this embodiment, the air belt 25 contacts (buts against) the winding portion 35 of the shoulder anchor 34 in such a manner that the end portion on the shoulder anchor 34 side (hereinafter referred to as the rear end 25A) is not bent by winding. Or it is set as the structure which adjoins.

  As a result, the seat belt 12 in the portion of the air belt 25 from the belt guide 24 to the shoulder anchor 34 absorbs the mounting stroke for mounting by the occupant P and the energy absorption (required resistance of the seat belt 12 when the occupant P is restrained). (Withdrawal)) The length is more than the sum of the strokes.

  As described above, in the air belt device 10, the webbing 32 having a relatively low rigidity constituting the retractor 14 side portion of the seat belt 12 relative to the air belt 25 is wound around the winding portion 35 of the shoulder anchor 34 and folded. The structure reaches the retractor 14.

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

  In the air belt device 10 configured as described above, the seat occupant P of the vehicle seat 11 pulls the seat belt 12 out of the retractor 14 and engages the tongue plate 20 with the buckle 22, so that the shoulder is schematically shown in FIG. 3. The belt portion 12A restrains the upper body of the seated occupant P, and the lap belt portion 12B restrains the waist of the seated occupant P.

  When a frontal collision of the vehicle is detected or predicted, the ECU activates the inflator. Then, gas is supplied from the inflator to the airbag 30 of the air belt 25 through a flexible hose, a buckle 22 and a tongue plate 20 (not shown). Thus, the occupant P is protected against a frontal collision of the vehicle to which the air belt device 10 is applied.

  That is, the air belt 25 that has received the gas supply from the inflator is inflated and deployed into a predetermined shape as shown in FIG. Thereby, the passenger | crew P is pressed against the vehicle seat 11, and the movement ahead of a vehicle is suppressed. Further, when the seated occupant P is moved forward of the vehicle due to the inertia of the collision, the retractor 14 allows the seat belt 12 to be pulled out while applying a restraining load accompanying deformation of an energy absorbing member (not shown) (not shown). As a result, the seat belt 12 (air belt 25) is pulled out from the retractor 14, and the collision energy is absorbed. When the maximum withdrawal amount of the seat belt 12 allowed by the retractor 14 during energy absorption is reached, further withdrawal of the seat belt 12 is prohibited.

  On the other hand, when a side collision of the vehicle is detected or predicted, the ECU activates the inflator. Then, gas is supplied from the inflator to the airbag 30 of the air belt 25 through a flexible hose, a buckle 22 and a tongue plate 20 (not shown). Thereby, the passenger | crew P is protected with respect to the side collision of the vehicle to which the air belt apparatus 10 was applied.

  That is, the air belt 25 that has received the gas supply from the inflator is inflated and deployed into a predetermined shape as shown in FIG. As the air belt 25 expands and deploys, the movable arm 24C rotates to open the belt guide 24, and the head H of the occupant P is suppressed while the belt guide 24 suppresses the expansion in the vehicle width direction. The belt guide 24 and the air belt 25 are deployed in the same manner even during the frontal collision described above. Thereby, especially the head H of the passenger | crew P is favorably protected against a frontal collision.

  Here, in the present air belt device 10, the seat belt 12 is wound around the winding portion 35 of the shoulder anchor 34 and folded, and the retractor 14 is disposed between the shoulder anchor 34 and the belt guide 24. For this reason, compared with the structure wound around the retractor 14 without folding the seat belt 12, the length of the portion of the seat belt 12 that extends straight behind the seat back 16 can be set longer.

  For example, in the comparative example in which the seat belt 12 is wound around the retractor 14 without being folded back, the seat belt 12 is straightened from the belt guide 24 to the rear of the vehicle by the size of the retractor 14 (difference in size with the shoulder anchor 34). The length is shortened by the length of In other words, in this comparative example, if it is attempted to secure the mounting stroke and the energy absorption stroke of the air belt 25 within the range in which the seat belt 12 extends straight, the retractor 100 interferes with the vehicle body B as shown by the imaginary line in FIG. End up. On the other hand, in the air belt device 10, since the seat belt 12 is wound around the relatively small shoulder anchor 34 and folded as described above, the seat belt 12 does not interfere with the vehicle body B. It is possible to secure the mounting stroke and the energy absorption stroke of the air belt 25 within a range in which the air belt extends straight.

  In the air belt device 10, the portion that is wound around the shoulder anchor 34 is the webbing 32, so that the pull-out associated with pulling out the seat belt 12 from the retractor 14 is compared with the configuration in which the air belt 25 is wound around the shoulder anchor 34. Resistance can be kept small.

  Further, in the air belt device 10, since the retractor 14 is disposed between the belt guide 24 and the shoulder anchor 34 in the vehicle front-rear direction (in side view), a space between the seat back 16 and the shoulder anchor 34 in the vehicle is provided. The retractor 14 can be arrange | positioned using. To supplement this point, for example, in the configuration in which the air belt 25 is wound around the shoulder anchor, if the air belt 25 is wound back to the front side of the vehicle, the pull-out resistance becomes excessive. Therefore, the air belt 25 is bent downward at most in the vehicle. Thus, the retractor 14 cannot be disposed using the space between the seat back 16 and the shoulder anchor 34.

  On the other hand, in the present air belt device 10, the seat belt 12 is always wound around the shoulder anchor 34 by the webbing 32, so that the seat belt 12 is folded back to the front side of the vehicle as described above and the upper between the belt guide 24 and the shoulder anchor 34. The retractor 14 can be disposed on the upper side of the back panel 15. In other words, in the present air belt device 10, the seat belt 12 is folded back to the front side of the vehicle by the shoulder anchor 34, so that the retractor 14 is positioned on the vehicle upper side (high position in the height direction) compared to the configuration in which the seat belt 12 is folded back to the vehicle lower side. ) Can be arranged. As a result, in the air belt device 10, it is possible to achieve both securing the pullability of the seat belt 12 from the retractor 14, securing the capacity of the space R such as the cargo space, and usability.

  As described above, the air belt device 10 according to the first embodiment can reduce the mounting space of the seat belt 12 on the vehicle while keeping the pulling resistance of the seat belt 12 from the retractor 14 small.

(Second Embodiment)
Next, an air belt device 50 according to a second embodiment of the present invention will be described with reference to FIG. FIG. 8 shows a schematic overall configuration of the air belt device 50 in a side view corresponding to FIG. As shown in this figure, the inflatable belt device 50 includes a to-be-reinforced portion 52 formed by reinforcing the webbing 32 between the inflatable belt 25 and the webbing 32, and the inflatable belt device 10 according to the first embodiment. Is different.

  The reinforced portion 52 is configured to have high strength and high rigidity with respect to the webbing 32 by, for example, sewing a webbing for reinforcement on the webbing 32. In this embodiment, the reinforced portion 52 is configured by sewing the mesh webbing 28 extended to the retractor 14 side so as to cover the webbing 32 to the webbing 32. The to-be-reinforced part 52 may be comprised by another structure (The case where it is the extended mesh webbing 28 independent is included).

  In the air belt device 50, the reinforced portion 52 is wound around the winding portion 35 of the shoulder anchor 34. Further, the reinforced portion 52 is set in a range in which the seat belt 12 is not wound around the retractor 14 in the fully wound state around the retractor 14. Other portions of the air belt device 50 are configured in the same manner as the corresponding portions of the air belt device 10 including portions not shown.

  Therefore, the air belt device 50 according to the second embodiment can basically obtain the same effect by the same operation as that of the air belt device 10 according to the first embodiment.

  Here, in the air belt device 50, in the range where the reinforced portion 52 is wound around the shoulder anchor 34, the pull-out resistance when the seat belt 12 is pulled out is larger than that in the air belt device 10, but the air belt 25 is connected to the shoulder anchor. In comparison with the configuration in which the seat belt 12 is wound, the pull-out resistance when the seat belt 12 is pulled out is sufficiently small. Moreover, since the retractor 14 does not wind up the thick part 52 to be reinforced, the retractor 14 is not enlarged.

  As described above, the air belt device 10 according to the second embodiment can reduce the mounting space of the seat belt 12 on the vehicle while keeping the pulling resistance of the seat belt 12 from the retractor 14 small.

  In each of the above-described embodiments, an example in which the present invention is applied to an air belt device based on a three-point seat belt device has been described. However, the present invention is not limited to this, and for example, a pair of left and right seat belts The present invention may also be applied to an air belt device based on a four-point seat belt device in which the intermediate portion is connected by a tongue plate and a buckle 22.

  In the above-described embodiment, the example in which the movable arm 24C is provided with the belt guide 24 that is separated from the fixed arm 24D in the seat width direction is shown. However, the present invention is not limited to this example. It is good also as a structure provided with the "U" -shaped belt guide which opens a vehicle downward which does not have a corresponding part. In this configuration, if the belt guide is lifted up above the vehicle while being supported by the shoulder portion 16 </ b> A of the seat back 16 as the air belt 25 expands and deploys, The expansion restriction in the seat width direction and the effect of promoting the expansion and expansion upward of the vehicle can be achieved.

  Further, in the above-described embodiment, the example in which the air belt 25 is provided in the portion constituting the shoulder belt portion 12A of the seat belt 12 is shown, but the present invention is not limited to this, and for example, the lap belt portion 12B is constituted. It is good also as a structure by which the air belt 25 was provided also in the part to carry out.

  Furthermore, in the above-described embodiment, the example in which the winding portion 35 of the shoulder anchor 34 slides with the seat belt 12 (the webbing 32, the reinforced portion 52) is shown, but the present invention is not limited to this, for example, The winding portion 35 may be constituted by a roller that rotates as the seat belt 12 is drawn and wound.

DESCRIPTION OF SYMBOLS 10 Air belt apparatus 11 Vehicle seat 12 Seat belt 14 Retractor (winding device)
16 Seat back 16A Shoulder 24 Belt guide (belt guide member)
25 Inflatable belt
32 Webbing 34 Shoulder anchor (wrapping material)
50 Air belt device 52 Reinforced part

Claims (3)

A seat belt for restraining an occupant seated in the vehicle seat;
Supply of gas which is provided at least in a part in the longitudinal direction of a portion of the seat belt for restraining the upper body of the occupant or constitutes at least a part of the seat belt in the longitudinal direction for restraining the upper body of the occupant An inflatable portion that is inflated in response to,
A belt guide member provided on a shoulder portion of a seat back of the vehicle seat and regulating a position in a width direction of the inflatable portion in the seat belt;
A wrapping member disposed on the rear side of the vehicle with respect to the belt guide member, and wound around so that the seat belt is folded back to the vehicle front side;
A winding device that is disposed between the belt guide member and the winding member in the vehicle longitudinal direction and winds up the seat belt so that it can be pulled out;
An occupant restraint device for vehicles.   2. The vehicle occupant according to claim 1, wherein the wrapping member is disposed at a position in the vehicle front-rear direction where the setting portion of the inflatable portion of the seat belt is not wound when the seat belt is not attached to the occupant. Restraint device. The seat belt includes a webbing wound around the winding device, and a reinforced portion formed by reinforcing the webbing between the webbing and the inflatable portion,
The reinforced portion is disposed on the belt guide member side with respect to the winding member in a state where the seat belt is not attached to an occupant, or is wound around the winding member and wound around the winding device. The vehicle occupant restraint device according to claim 2, wherein the vehicle occupant restraint device is set in a range where it is not possible.

Images