WO1997004994A1 - Dispositif de coussin de securite lateral gonflable - Google Patents
Dispositif de coussin de securite lateral gonflable Download PDFInfo
- Publication number
- WO1997004994A1 WO1997004994A1 PCT/JP1996/001908 JP9601908W WO9704994A1 WO 1997004994 A1 WO1997004994 A1 WO 1997004994A1 JP 9601908 W JP9601908 W JP 9601908W WO 9704994 A1 WO9704994 A1 WO 9704994A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- airbag
- pad
- sewn
- airbag device
- covering material
- Prior art date
Links
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- 238000009958 sewing Methods 0.000 claims description 44
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- 238000003825 pressing Methods 0.000 description 7
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 4
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- 206010048669 Terminal state Diseases 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000010097 foam moulding Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 210000000497 foam cell Anatomy 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/0002—Type of accident
- B60R2021/0006—Lateral collision
Definitions
- the present invention relates to a side airbag for protecting an occupant from the side in the event of a vehicle collision.
- An airbag device is a device that restrains an occupant by inflating the airbag in the event of a vehicle collision, and generally includes an inflate, which is a gas generator. It has an air bag that expands due to the gas from the inflator, and an air bag case that stores the air and the inflator. ing .
- the airbag device is not limited to one that restrains an occupant from the front, and in recent years, as shown in Japanese Patent Application Laid-Open No. 6-64491, the airbag device has a Some restraints have also been developed.
- a side airbag device is provided, for example, on the side of the seat back, such as the door side, on the side of the vehicle cabin wall, such as the airbag described above.
- the airbag housing for storing the airplane and the airplane is buried, and the seat covering material covering the surface of the seat is used to open the airbag case. In the vicinity of the mouth, there is a sewn portion for sewing the surface covering material covering the opening of the case and another surface covering material.
- the suturing portion is split at a predetermined deployment pressure of the airbag, and the airbag is deployed from the cleaved gap.
- the above-described suturing of the sewn portion is mainly caused by the difference between the elongation of the facing material and the elongation of the sewing thread. There is a type that breaks and ruptures.
- the former type is often used for composite facing materials consisting of, for example, a PVC laser and a backing material, while the latter type is used, for example, for a flexible material.
- crushed materials, moquettes are often used in composite facing materials lined with polyurethane foam sheet materials.
- the strength of the sewing thread must be stronger than the strength between the perforations of the facing material. Also, in the case of breaking the latter sewing thread, there is a restriction that the strength of the facing material must be stronger on the contrary, and both the facing material and the sewing material must be broken. In addition, it requires sophisticated balance in terms of quality and technology.
- the first invention of the present invention facilitates and promptly cleaves by finding a novel structure that makes it possible to cleave a suture portion.
- a side airbag device that can achieve this, and can easily achieve a balance between the strength of the surface covering material and the sewing thread to greatly improve productivity.
- the second invention of the present invention is to provide a seat pad between an airbag case and a seat covering material, and to provide the seat pad with the seat pad.
- the airbag device for a side according to the first invention of the present invention is an airbag device buried in a vehicle seat wall side of a vehicle seat. In the vicinity of the opening of the airbag case, the sheet covering material is sewn together with the covering material covering the opening and another covering material.
- a band is provided over the material and a fixing member such as a sheet frame to suppress the expansion of the other surface material when the airbag is deployed, and a band is provided.
- One end of the doll-shaped body is fixed to the fixing member, and the other end is sewn to the other facing material by the sewing thread of the sewn portion. That.
- the airbag case is opened by the internal pressure of the airbag.
- the case-side covering material covering the mouth and the other covering material are pressed first, and at this time, the extension of the other covering material is suppressed by the band-shaped body.
- the force due to the airbag pressing Concentrates on the suturing area of the obi, so that the sewn area of the sheet covering material can be easily torn from the area where the sash was sewn together. .
- the cleavage of the suturing portion by the band-like body can be performed quickly, and the dressing can be performed quickly.
- the strength balance between the material and the sewing thread can be easily obtained, and the productivity can be greatly improved.
- the obi body can quickly rupture the sutures, in lieu of a break in the sewing thread or perforation.
- the band is cut against the seam of the suture so that the unfolding pressure of the front air bag is concentrated on one side of the seam and the band is quickly split from this part. It is preferable to arrange them at an angle. Since the deployment pressure is concentrated on one side of the suturing portion of the band, the suturing of the suturing portion can be performed more quickly, and the predetermined starting point of the splitting can be obtained. There are also advantages such as being able to work.
- the end of the band-shaped body on the side of the facing material is attached to the other facing material when the airbag is deployed.
- the sewn portion makes it easier to tear the suturing portion so that it moves in the direction in which it is peeled off from the suturing portion when stretched. Preferred from the point of view.
- the band-shaped body is provided between the airbag case and the case side covering material. It may be distributed through.
- the side airbag device is an airbag device buried on the side of the cabin wall of a vehicle seat, and is an airbag device.
- the sheeting materials of the sheet are sewn together so that they are joined together, and the sewn part is torn by the predetermined airbag deployment pressure.
- a sheet pad of a predetermined thickness is interposed between the airbag case and the facing material.
- a slit portion is formed inside the seam of the pad for the pad to allow the airbag to be inserted when the pad is unfolded.
- the airbag case which was conventionally adjacent to the sheet covering material, is now covered with the pad, so that the sheet feel can be softened. Bulk and texture It is possible to attach the side airbag without damaging the airbag.
- a slit for allowing the airbag to be inserted into the pad when the airbag is unfolded, inside the seam portion of the pad.
- the airbag part it is also possible to form a fragile part that is cleaved by the airbag deployment pressure and allows the airbag to pass through. No.
- This fragile portion can be formed by making the pad thinner than its surroundings.
- the vulnerable portion may be a hole or a slit intermittently formed in a perforated manner.
- the slit or the fragile portion has a straight or U-shape.
- the terminal may be terminated in a circular, c-shaped, L-shaped or U-shaped configuration.
- the thickness of the pad adjacent to the slit or the fragile portion is thin near the center of the slit or the fragile portion and thick at the end. It is also possible to form it.
- the side portion of the seat where the slit portion or the fragile portion is formed is formed. It is also possible to form the pad with a higher hardness than the pad of the other part, and to form the pad integrally with the pad of the other part. As a result, the shape of the slit portion and the fragile portion can be easily maintained, so that their positional relationship with respect to the airno-sog is fixed, and In addition to being able to concentrate the deployment pressure of the bag on the slits and vulnerable parts, it is also possible to keep the breaking position of the pad constant. Also, since the pad can be made highly elastic with respect to the deployment pressure when the airbag is deployed, the pad is opened outward by splitting the pad. The strength of the hinge part of the pad can be increased. Furthermore, it is effective in improving the occupant's holding ability.
- the side airbag device of the second invention about 30 to 2 pieces are provided on the pad surface around the slit or the fragile portion. It is also possible to form a skin extension of 0 m, which can deflect the pad surface around the slit or vulnerable part. it can .
- the configuration of the second invention may be applied to the side airbag apparatus of the first invention described above.
- the airbag device is buried on the vehicle seat wall side of the vehicle seat, and the seat covering material is the airbag case opening. Near the opening, there is a suturing portion formed by suturing the surface covering material covering the opening and another surface covering material, and the suturing portion is adapted to a predetermined deployment pressure of the airbag.
- a sheet pad of a predetermined thickness is provided between the airbag case and the sheet covering material.
- a slit section or a fragile section inside the sewn section of the pad that allows the airbag to be inserted when unfolded Forming a portion, and further including the other portion of the suture portion
- One end of the belt-shaped body may be fixed to the fixing member, and the other end may be sewn to the other surface material together with the sewing thread of the sewn portion.
- FIG. 1 is a partial perspective view showing a state in which a side airbag device according to an embodiment of the first invention of the present invention is operated, and FIG. A perspective view of a seat equipped with this airbag device,
- FIG. 3 is a horizontal sectional view showing the airbag apparatus
- FIG. 4 is a schematic cross-sectional view of the airbag apparatus for explaining an operation state of the airbag apparatus.
- (A) is the state before the operation
- FIG. 5 (a) is a perspective view in the state of the previous figure (b), and FIG.
- FIG. 6 is a perspective view showing an example of fastening the belt-like body to a fixing member in this airbag apparatus.
- FIGS. 7A and 7B are views showing another example of fastening the belt-like body to the fixing member.
- FIG. 7A is a perspective view thereof
- FIG. 7B is a cross-sectional view thereof.
- FIG. 8 is a cross-sectional view showing another example of sewing the band to the surface material.
- FIG. 9 is a perspective view of a seat equipped with a side airbag device according to another embodiment of the first invention.
- Fig. 10 is a front view showing an example of sewing a zipper to a surface material in the airbag device of Fig. 1;
- Fig. 11 is a perspective view of the essential parts showing the operating state of the airbag device.
- Fig. 11 (a) shows the initial state at the time of operation, and (b) shows the terminal state at the time of operation.
- FIG. 12 is a j-plane view showing another example of sewing a belt-like body on the airbag apparatus.
- FIG. 13 is a front view showing an example of sewing another band
- FIG. 4 is a front view showing another example of sewing a band
- FIG. 5 is another band. It is a front view which shows the example of sewing of a body.
- FIG. 16 is a horizontal sectional view showing a side airbag device according to a still further embodiment of the first invention.
- Fig. 17 is a schematic diagram of a horizontal section for explaining the operating state of the air bag device, (a) shows the state before operation, and (b) shows the initial state during operation. (C) shows the terminal state at the time of operation.
- FIG. 18 is a horizontal sectional view showing a side airbag device according to an embodiment of the second invention of the present invention.
- FIG. 19 is a perspective view showing the backrest of the seat to which this air bag device is attached, excluding the seat covering material.
- FIG. 20 is a horizontal sectional view showing another example of a slit portion of the airbag device.
- FIG. 21 is a perspective view showing a backrest portion of the sheet without a sheet covering material.
- FIG. 22 is a horizontal sectional view showing a side air-pap device according to another embodiment of the second invention.
- FIG. 23 is a perspective view of a backrest portion of the seat, excluding a seat covering material, showing another example of a fragile portion of the airbag device.
- FIG. 24 is a horizontal sectional view showing a side airbag device according to a second embodiment of the present invention as well as another embodiment.
- FIG. 25 is a perspective view showing a backrest portion of a seat to which the air-knocking device is attached, excluding a seat covering material.
- FIG. 26 is a perspective view of a backrest portion of the sheet, excluding a sheet covering material, showing an example of a shape of a slit portion or a weak portion.
- FIG. 27 is a perspective view of the backrest portion of the sheet, excluding the sheet covering material, showing another example of the shape of the slit portion or the fragile portion.
- FIG. 28 is a schematic view showing various modifications of the slit portion or the fragile portion shown in FIG. 26. (a) to (d) show the shape of the end portion of the slit portion or the fragile portion. ), The thickness of the pad has been changed.
- FIG. 29 is a schematic view showing various modifications of the slit portion or the fragile portion shown in FIG. 27.
- (a) to (d) show the shape of the end portion of the slit portion or the weak portion.
- the thickness of the pad has been changed.
- FIG. 4 is a perspective view of a backrest portion of the sheet, excluding a sheet covering material, showing an example of the above.
- FIG. 31 is a schematic cross-sectional view showing a state in which the side pad of the sheet shown in the previous figure is torn.
- FIG. 32 is a cross-sectional view showing a skin layer formed on a pad surface around a slit or a weak portion.
- FIG. 33 is a cross-sectional view of a molding die showing an example of forming a sheet bad.
- FIGS. 1 to 3 show a side airbag apparatus according to an embodiment of the first invention of the present invention.
- This side air-jack device 10 is provided with an inflator 12, an air bag 14, and an air bag case 16.
- the vehicle seat 18 is buried in the backrest portion 18 a of the vehicle seat 18 on the side of the cabin wall (door) 20, and as shown in FIGS.
- the airbag 14 is deployed between the occupant and the cabin wall 20 toward the front of the vehicle in an emergency.
- the sheet covering material 20 covering the surface of the sheet 18 is formed by joining two pieces of the covering materials 22 and 24 to the front side of the airbag case 16. It has a sewn portion 26. That is, as shown in FIG. 3, cover the opening 16a of the air bag case 16 on the side of the opening 16a of the air bag case 16. Case material 2 2 and an occupant-side facing material 24 extending from the occupant side G toward the occupant's seating side G, and are stitched together. 8 are arranged inside and extend vertically along the backrest 18a as shown in FIG. When the sewing thread 27 of the sewn portion 26 is broken by the predetermined deployment pressure of the airbag 14, the suture 26 is torn, and is the gap opened? The air bag 14 is configured to bulge out.
- the band 28 for suppressing the extension of the occupant-side facing material 24 when the airbag 14 is deployed is provided with the above-mentioned band 28.
- the occupant-side facing material 24 of the sewn portion 26 and the fixing member 30 such as a seat frame (or air case, dog case 16) are disposed.
- the fixing member side end 28 b of the band 28 is fastened to the fixing member 30, and the surface material side end 28 a of the band member 28 is stitched.
- the sewing thread 27 of the part 26 is sewn to the occupant-side facing material 24 together.
- the fixing member side end 28b of this band-like body 28 is fixed via a bracket 32 and a bolt nut 34. It is fixed to the fixed member 30. As shown in Fig. 7, this fixing is carried out by forcibly fitting an outer end of the band-shaped body 28 to the fixing member side end 28 of the sheet frame round bar 36 or the like.
- a hook 37 to be combined or a hook-shaped hook (not shown) that can form an annular shape may be attached and fixed to the fixing member 30.
- the end portion 28 a of the diabolical body 28 on the facing material side is pulled by the occupant-side facing material 24.
- sew in the opposite direction to move in the direction of peeling It is.
- the end portion 28a of the facing material side is sewn so as to move in the shearing direction when pulled on the occupant side facing material 24. Is also good.
- the sewing thread 27 can be more easily broken, it is preferable to sew the sewing thread 27 so as to move in the peeling direction described above.
- the band 28 is preferably formed by using a cloth such as nylon or polyester to reduce the elongation, and has a width of about 20%. ⁇ 3 Omm is appropriate. As described above, the width of the rod 28 is considerably narrower than the width of the airbag 14 (about 300 mm). This is preferable because the development pressure can easily concentrate the stress. However, depending on the buried position of the airbag case 16, if the width of the band 28 is considerably narrower than the width of the airbag 14. When the air bag 14 is unfolded, it is bent by the strip 28 (in other words, it is wound around both sides of the strip 28). In some cases, it is difficult to obtain a quick deployment (the swelling 14 expands).
- the band 28 is guided so as to guide the jagged nut 14 until the suturing portion 26 is completely broken.
- the width of the body 28 is preferably about 150 to 400 mm.
- the band 28 may be made of resin or metal instead of cloth, but in that case, the sheet feels hard and the hardness remains.
- the airbag apparatus 10 when the airbag 14 starts to expand from the state of FIG. 4 (a), the airbag apparatus 10 shown in FIGS. As shown in Fig. 5 (a), the case side covering material 2 and the occupant side covering material 2 are caused by the unfolding pressure of the airbag 14. 4 is first pressed outward. As a result, the occupant-side facing material 24 tends to stretch together with the case-side facing material 22, but the occupant-side facing material 24 is stretched by the band 28. Since the extension is regulated, the force due to the pressing of the airbag 14 concentrates on the suture portion 26 of the band 28. As a result, as shown in FIG. 4 (c) and FIG.
- the sewing thread 27 starts to be cut from this portion, and the sewn portion 26 of the two facing materials 22 and 24 is cut. Can be cleaved. In this way, the force generated by the pressing of the airbag 14 is concentrated on the sewn portion 26 of the band 28, so that the sewing is performed to sew both the facing materials 22, 24. The thread 27 is easily broken, so that the suture portion 26 can be quickly split.
- the perforations start to break from the jointed portions of the strip 28, and the perforations of the seam 26 of the covering materials 22 and 24 are entirely formed. What is broken at
- FIG. 9 shows a side airbag device 50 according to another embodiment of the first invention.
- the arrangement direction of the band-shaped body 28 with respect to the suturing portion 26 is different from that of the above-described embodiment. That is, in this embodiment, as shown in FIG. 10, the band 28 has the deployment pressure of the jaw 14 concentrated on one side 28 c of the suturing portion.
- the long axis X which is the longitudinal direction of the band-shaped body 28, is not perpendicular to the sewing line Y of the joint portion 26 but obliquely so as to be cleaved more quickly from the lever. It has a characteristic in this point.
- this baggage device 50 As a result, in this baggage device 50, as shown in FIG. 11, when the baggage 14 is unfolded, as shown in FIG. — When the surface materials 22 and 24 on the side and the occupant are pressed, the force of this pressing is concentrated on one side 28 c of the suture portion of the band 28. Therefore, the sewing thread 27 starts to be cut from this portion, and the seam portion 26 of both the materials 22 and 24 is torn quickly.
- the webbing 14 is provided at one point of the seam 26 of the band 28. The sewing thread 27 of the sewn portion 26 can be concentrated.
- the suture portion 26 can be more easily broken, and thus the suturing portion 26 can be more quickly opened.
- the sewing thread 27 starts to be cut from the one point, there is an advantage that a predetermined cleavage start point can be obtained.
- one band 28 is connected to the seam 2 as shown in FIG. It is basically arranged so that the angle of elevation becomes an acute angle obliquely downward with respect to the sewing line Y of No. 6, but in addition, as shown in Fig. 12, The two strips 28 and 28 are arranged so that one of them is inclined downward toward the seam Y of the seam 26 and the other is the seam of the seam 26. It may be arranged to face diagonally upward with respect to Y. Further, as shown in FIGS. 13 and 14, the end portion 28a of the band-shaped body 28 on the surface material side is extended and sewn along the sewing line Y in a bent and prone state.
- a single band 28 is bent in a V-shape, and the bent portion is used as the outer material side end 28 a and the suture portion 2 is formed. 6, and the two fixing member side ends 28 b, 28 b extending diagonally upward and downward from each other are superimposed on each other, and one bolt 32 is used.
- the fixing member 30 may be fixed to the fixing member 30.
- the band 28 is sewn diagonally with respect to the sewing line Y of the sewn portion 26, and the sewn portion 2 At the fixed material side end 28b, for example, sewn vertically to the sewing line Y of No. 6 It is all right.
- FIG. 16 is a side view of the first embodiment of the invention, as well as a side view of another embodiment. The device 60 is shown.
- a band 28 disposed between the occupant-side surface material 24 of the stitching part 26 and the fixing member 30 is formed by an airbag. It is different from the airbag device 10 of the above-described embodiment in that the airbag device is disposed between the bag case 16 and the case side covering material 22. . That is, in this embodiment, the band-like body 28 extends from the outer material side end 28 a sewn to the sewn portion 26 to the air bag case 16. It extends rearward through the space between the opening 16a and the case side covering material 22 and is behind the airbag case 16 at the fixing member side end 28 b is fixed to fixing member 30
- the force generated by the pressing of the airbag 14 is concentrated on the suture portion 26 of the band 28, as shown in FIG.
- the suture portion 26 can be quickly cleaved.
- the fixing member side end 28 b from behind the sheet 18 is sewn. Can be fixed to the fixing member 30, which facilitates manufacturing.
- FIG. 18 shows a side edge device according to an embodiment of the second invention of the present invention.
- the side debugging device 70 of this embodiment is also similar to the debugging device 10 of the above-described embodiment, and is similar to the inflation device 12 and the air bag.
- the baggage case 16 containing 14 is buried in the backrest part 18a of the seat 18 on the side of the cabin wall 20 to make the baggage case 16 Diagonal front of 16 a
- the occupant side covering material 24 are stitched together so that the seam 26 and the occupant side covering material 24 are joined together, and the sewn portion 26 is torn by a predetermined deployment pressure of the airbag 14.
- an airbag 14 is deployed between the occupant and the cabin wall 20 in an emergency.
- a urethane foam of a predetermined thickness is provided between the airbag case 16 and the sheet covering material 20.
- Head 72 is interposed. That is, not only on the occupant seating side G of the seat 18 but also on the side of the seat where the airbag device 70 is arranged, the seat covering material 20 is provided.
- Pads 72 and 73 of 2 return form are arranged on the inner side.
- the pad 72 arranged on the side of the sheet has a pair of airbags 14 inside the seam 26 of the surface covering materials 22 and 24 when the airbag 14 is deployed.
- a slit portion 74 through which the bag 14 is inserted is formed.
- the slit portion 74 is formed by extending the side portion of the seat backrest portion 18a along the suturing portion 26 up and down. It has been.
- This slit portion 74 has a gap of about 5 mm as shown in FIGS. 20 and 21 although there is no gap shown in FIGS. 18 and 19. Is appropriate, and its length is about 300 to 500 mm so that the airbag 14 can pass through. Is appropriate.
- the urethane foam is provided between the airbag case 16 and the covering materials 22 and 24 covering the airbag case 16. Since the pad 72 of the system was interposed, They have excellent tactile sensation. In addition, since the slit portion 74 is provided in the pad 72, the air bag 14 can pass through when the pad 72 is unfolded. In this way, the airbag 14 can be swelled. In addition, like this. Even if the slit part 74 is provided on the head 72, the seat can be made with a good feel because the surface material 20 is on the sheet surface.
- FIG. 22 shows a side airbag apparatus 80 according to another embodiment of the second invention.
- the airbag of the above-described embodiment has a fragile portion 82 that can be cleaved by the deployment pressure of the airbag 14 to allow the airbag 14 to pass through. It differs from the locking device 70. That is, in this example, a weak portion 82 having a thickness smaller than the surrounding area is formed inside the outer covering material sewn portion 26 of the pad 72. Along the seam 26, it is formed on the side of the seat backrest 18a so as to extend vertically, and when the airbag 14 is unfolded, it is formed.
- the fragile portion 82 Due to the unfolding pressure, the fragile portion 82 is ruptured, and the airbag 14 swells out from the ruptured gap to the sheet outer bag.
- the inner wall side of the head 72 is cut off as shown in FIG. 22. It is preferable to form them in the same way.
- FIG. 23 shows another example of the formation of the fragile portion 82.
- the fragile portion 82 is formed with a hole or a hole in the pad 72.
- the lip is formed by intermittently setting the rim.
- the integrity of the pad 72 is greater than when the slit portion 74 is formed. Because of the high height, the texture of the sheet 18 can be further maintained.
- a small slit described below may be provided in the fragile portion 82.o
- Figures 24 and 25 show a side airbag pad 90 of a second embodiment as well as another embodiment.
- the air bag device 90 is obtained by adding the configuration of the first invention to the air bag device 80 of the above-described embodiment.
- a pad of urethane foam is provided between the airbag case 16 and the facing materials 22 and 24.
- a part 82 is formed.
- the weakened portion 82 has a small slit 82a at the center thereof, and when the airbag 14 is deployed, the occupant-side facing material 24 is removed.
- a strip 28 for suppressing elongation is provided penetrating the small slit 82a inside and outside.
- the rod-shaped body 28 is, similarly to the one described in detail in the embodiment of the first invention, the occupant-side surface material 2 of the sewn portion 26 and the fixing member 30 such as a seat frame.
- the one end 28 b is fastened to the fixing member 30, and the other end 28 a is connected to the sewing thread 27 of the stitch portion 26. It is sewn together to the occupant side surface material 24.
- the seat tactile sensation is soft. While maintaining the height, the suture portion 26 of the facing material can be rapidly torn when the airbag 14 is deployed.
- the above-mentioned slit portion 74 may be provided, and the strip 28 may be penetrated through the slit portion 74.
- the shape of the slit portion 74 or the fragile city 82 may be a straight line as shown in FIG. It can be in a U-shape as shown in Figure 27.
- the upper and lower ends of the slit portion 74 or the fragile portion 82 have a circular shape as shown in FIGS. 28 (a) and 29 (a), a circular shape as shown in FIGS. 28 (b) and 28 (b), respectively.
- T-shape as shown in Figure 29 (b), L-shape as shown in Figure 28 (c) and Figure 29 (c), Figure 28 (d) and Figure 29 (d) It is also possible to form a U-shape as shown in Fig. Further, as shown in FIGS.
- the thickness of the pad 72 adjacent to the slit portion 74 or the weak portion 82 is reduced. It is also possible to form the slit part 74 and the fragile part 82 near the center of the fragile part 82 thin at C and thicker along the end T.
- the pad 72 can be cleaved in a predetermined shape (immediately, the cleaving is terminated at that position). Can be obtained).
- a slit portion 74 or a fragile portion 82 is formed.
- the pad 72 on the side of the seat to be removed may be It is also possible to form it with a harder and more durable foam than the pad 73 at the center, including the opposite side, and to integrate it.
- the pad 72 on the side is integrally formed of a perforated foam having a different hardness such as a low molecular weight or a high cross-link.
- the shape of the slit portion 74 and the fragile portion 82 can be easily maintained, and the positional relationship of the slit portion 74 and the fragile portion 82 with respect to the airbag 14 is fixed.
- the deployment pressure of the airbag 14 can be concentrated on the slit portion 74 and the fragile portion 82, and the opening position of the pad 72 can be adjusted. It can be fixed. That is, if the pad 72 has a low hardness, for example, it is not possible to maintain a predetermined shape partially depending on the weight of the occupant, and the cross-sectional shape is not sufficient. Or the shape may be deformed, which may reduce the effect of stress concentration on the slit portion 74 and the fragile portion 82.
- the pad 72 can be made highly elastic with respect to the deployment pressure of the airbag 14, as shown in FIG. 31, the pad 72 is cleaved.
- the strength of the hinge portion 72a of the pad 72, which is opened outward, can be increased. Furthermore, it is effective in improving the occupant's holding ability.
- the urethane foam molding is performed on the surface of the pad 72 around the slit portion 74 or the fragile portion 82.
- a solid skin 92 of about 30 to 200 mm is formed as shown in Fig. 32. You may.
- FIG. 33 when urethane foam molding is performed using the upper die 95 and the lower die 96, the slit portion 74 or the brittle portion is formed.
- the above-mentioned skin layer 92 is formed by lowering the forming piece 97 of the mold for forming 82 to a temperature lower than the other surface temperatures of the upper and lower molds 95, 96. And can be done.
- the slit portion 74 and the fragile portion 82 in each embodiment of the second invention are used for cutting using a cutter knife, a sander, or the like. Therefore, it can be formed. In cutting, it can be easily processed by hand or the like without requiring special equipment, and is suitable for small-quantity production, and in molding, it is suitable for mass production.
- the balance of strength can be easily obtained, and the productivity can be greatly improved.
- a pad for a sheet is interposed between the airbag case and the seat covering material.
- the seat airbag can be attached to the seat without sacrificing the softness and feel of the seat.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
- Seats For Vehicles (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96923041A EP0782944B1 (en) | 1995-08-02 | 1996-07-10 | Side air bag device |
DE69601699T DE69601699T2 (de) | 1995-08-02 | 1996-07-10 | Seitenluftsackvorrichtung |
US08/809,516 US5810389A (en) | 1995-08-02 | 1996-07-10 | Side air bag device |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7/218122 | 1995-08-02 | ||
JP21812295A JP3762459B2 (ja) | 1995-08-02 | 1995-08-02 | 側部用エアバッグ装置 |
JP23126195A JP3318575B2 (ja) | 1995-09-08 | 1995-09-08 | 側部用エアバッグ装置 |
JP7/231261 | 1995-09-08 | ||
JP8/24573 | 1996-01-17 | ||
JP2457396 | 1996-01-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997004994A1 true WO1997004994A1 (fr) | 1997-02-13 |
Family
ID=27284710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/001908 WO1997004994A1 (fr) | 1995-08-02 | 1996-07-10 | Dispositif de coussin de securite lateral gonflable |
Country Status (4)
Country | Link |
---|---|
US (1) | US5810389A (ja) |
EP (2) | EP0782944B1 (ja) |
DE (2) | DE69627684T2 (ja) |
WO (1) | WO1997004994A1 (ja) |
Cited By (3)
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WO1998038067A1 (en) * | 1997-02-28 | 1998-09-03 | Hoover Universal, Inc. | Seat mounted side air bag with deployment force concentrator |
FR2765845A1 (fr) * | 1997-07-09 | 1999-01-15 | Peugeot | Perfectionnement aux dispositifs a "air bag" lateral, pour vehicule automobile |
EP0979184A4 (en) * | 1997-05-01 | 2004-11-17 | Breed Automotive Tech | SEAT-INTEGRATED AIR BAG FOLDING LID |
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US20160082915A1 (en) * | 2014-08-01 | 2016-03-24 | Stephen Madaras | Vehicle Safety Seat |
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JP6327120B2 (ja) | 2014-11-07 | 2018-05-23 | トヨタ紡織株式会社 | 乗物用シート及びシートパッドの製造方法 |
JP6079765B2 (ja) | 2014-12-11 | 2017-02-15 | トヨタ自動車株式会社 | サイドエアバッグ装置を備えた車両用シート |
EP3045355B1 (de) * | 2015-01-14 | 2017-08-23 | Ford Global Technologies, LLC | Fahrzeugsitz mit einem in einem sitzteil angeordneten airbagmodul |
JP6554952B2 (ja) * | 2015-07-13 | 2019-08-07 | トヨタ紡織株式会社 | 乗物用シート |
AU2016238860B2 (en) * | 2015-10-08 | 2021-07-15 | Global Automotive Accessories Pty Ltd | Seat cover |
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- 1996-07-10 DE DE69627684T patent/DE69627684T2/de not_active Expired - Lifetime
- 1996-07-10 EP EP96923041A patent/EP0782944B1/en not_active Expired - Lifetime
- 1996-07-10 EP EP98106622A patent/EP0856438B1/en not_active Expired - Lifetime
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998038067A1 (en) * | 1997-02-28 | 1998-09-03 | Hoover Universal, Inc. | Seat mounted side air bag with deployment force concentrator |
EP0979184A4 (en) * | 1997-05-01 | 2004-11-17 | Breed Automotive Tech | SEAT-INTEGRATED AIR BAG FOLDING LID |
FR2765845A1 (fr) * | 1997-07-09 | 1999-01-15 | Peugeot | Perfectionnement aux dispositifs a "air bag" lateral, pour vehicule automobile |
Also Published As
Publication number | Publication date |
---|---|
EP0782944A4 (en) | 1997-10-08 |
DE69601699T2 (de) | 1999-10-21 |
EP0856438B1 (en) | 2003-04-23 |
DE69601699D1 (de) | 1999-04-15 |
US5810389A (en) | 1998-09-22 |
EP0782944A1 (en) | 1997-07-09 |
EP0856438A3 (en) | 1998-08-12 |
EP0782944B1 (en) | 1999-03-10 |
EP0856438A2 (en) | 1998-08-05 |
DE69627684T2 (de) | 2004-04-08 |
DE69627684D1 (de) | 2003-05-28 |
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