WO1992005045A1 - A safety means for vehicle seats - Google Patents
A safety means for vehicle seats Download PDFInfo
- Publication number
- WO1992005045A1 WO1992005045A1 PCT/SE1991/000598 SE9100598W WO9205045A1 WO 1992005045 A1 WO1992005045 A1 WO 1992005045A1 SE 9100598 W SE9100598 W SE 9100598W WO 9205045 A1 WO9205045 A1 WO 9205045A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle
- seat
- safety device
- wire
- deceleration
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/433—Safety locks for back-rests, e.g. with locking bars activated by inertia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
- B60N2/4214—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal
- B60N2/4221—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal due to impact coming from the front
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
- B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
- B60N2/427—Seats or parts thereof displaced during a crash
- B60N2/42772—Seats or parts thereof displaced during a crash characterised by the triggering system
- B60N2/42781—Seats or parts thereof displaced during a crash characterised by the triggering system mechanical triggering
Definitions
- Vehicle seats particularly vehicle seats of the kind to the upper end of which is attached one end of the belt part associated with the seat, are exposed to very heavy stress in the part of the seat interconnecting the back of the seat with the cushion thereof, in the event of abnorm- al deceleration, such as sudden braking or collisions. Under these conditions, there is a risk that the back of the seat will fold forwards and consequently the belt will fail to give the person occupying the seat the intended protection. In any event, the point of interconnection, which nowadays often is in the form of an angularly adjustable articulated joint, must be of considerable dimensions.
- the main purpose of the invention is to eliminate this drawback by lessening the load on the interconnec- tion joint between the seat cushion and the seat back.
- This purpose is achieved in a safety device in accordance with the invention which is essentially characterized in that it consists of an interconnection wire extending between the top of the seat back and the neighbouring side of the vehicle chassis and in such a way that it is yieldable during adjustment of the vehicle seat but locks in position in deceleration situations.
- Fig. 1 is a perspective view of a part of the vehicle as seen through the left front door of the vehicle and illustrating one embodiment of the inventive object;
- Fig. 2 is a sectional view of the device indicated in Fig. 1 in release position;
- Fig. 3 illustrates the same part but in the latched position
- Fig. 4 is section taken along line IV-IV in Fig. 3;
- Fig. 5 is a perspective view as seen from behind, of the top of the vehicle seat fitted with a strap storage device in accordance with an alternative embodiment, and
- Fig. 6 is a view corresponding to Fig. 1 but showing a safety means in accordance with the invention adapted to fit a two-door car.
- the seat of a vehicle is designated generally by numeral reference 1.
- Reference 2 designates the cushion part of the seat and reference 3 the back thereof.
- Reference numeral 4 designates a means for adjustment of the position of inclination of the back.
- the safety belt associated with the seat is designated by 5.
- the diagonal part of the belt is secured to the upper end of the seat back and extends diagonally there ⁇ from downwards to a coupling means 7, while the hip part 8 of the belt 5 extends across the seat to an attachment bracket 9 supported by the seat portion proper of the chair.
- Numeral reference 10 designates a wire which in accordance with the embodiment illustrated is in the form of a strap.
- a bracket 11 secures the strap 10 to the top of the seat back 3 and by means of a delinking element 12 mounted on the rear door of the vehicle the strap projects down into a hollow profile member 13 which serves to guide a runner means 14, see Figs. 2-4, and in which the lower end of the strap 10 is attached.
- the guide 13 is in the form of an essentially ver- tical hollow profile member having a C-shaped configu ⁇ ration, as most clearly apparent from Figs. 2-4.
- the hollow profile member could, of course, be shaped as an entirely closed tube.
- the guide could have a con ⁇ figuration differing from that of a hollow profile member
- the runner may be arranged for guidance on the exterior of the profile member.
- a pawl 15, pivotally mounted on the runner for pivotal movement about a pin 16, is provided with a weight 17 which is positioned in such a manner that the center of gravity T of the body formed jointly by the pawl 15 and the weight 17 will be posi- tioned at a distance A behind the axis 16, calculated in the travelling direction V of the vehicle, while at the same time the centre of gravity T will also be positioned at a distance H below the pivot axis.
- Numeral reference 18 designates the nose of the pawl, said nose engaging, in the position illustrated in Fig. 3, with one of a number of locking teeth 19 extending vertically along the guide.
- numeral reference 20 is designated a tension spring which tends to pivot the pawl upwards to the neutral pawl position illustrated in Fig. 2, i.e. the position in which its nose 18 is not in engagement with anyone of the teeth 19.
- the pawl When the vehicle, normally travelling in direction V, is exposed to an abnormal decelerating force, for instance as a consequence of sudden braking or a collision, the pawl is pivoted in the clockwise direction as seen in Figs. 2 and 3, into engagement with one of the locking teeth 19, thus pre ⁇ venting the strap 10 from being pulled out and in con ⁇ sequence thereof the seat back from being folded forwards. Any sudden pull on the strap for whatever reason also brings the pawl to assume its position of engagement illustrated in Fig. 3, preventing further pulling out of the strap.
- means are provided to shift the latching body 15 to its release position by manipulations from outside the vehicle, should the latter assume a very oblique position or in case the pawl becomes stuck as a result of an accident.
- the door lock could also be connected to the pawl in order to release the latter when desired.
- the components corresponding to those of the embodiment just described are referred to by identical numeral references.
- the back of the seat is re ⁇ ferred to by numeral 3 and the strap extending between the seat back and the vehicle side is designated by reference 10.
- a reel-up mechanism 21 of a type similar to that of a conventional safety-belt reel mechanism is arranged on the seat back.
- a reel-up mechanism of this kind is indicated in Fig. 5 and is designated on this drawing figure by numeral 22.
- the reel-up mechanism is provided in a manner known per se with locking means preventing unwinding of the strap 6 in the event of abnormal vehicle deceleration.
- the reel- up mechanism 21 preferably is provided with means of this kind.
- the strap need only be attached to the vehicle side by means of a suit- able connecting member.
- the strap 10 When the vehicle is not exposed to abnormal dece ⁇ leration forces the strap 10 preferably is free to move inwards and outwards, thus being yieldable in such a manner as to allow adjustment of the vehicle seat posi- tions, both with respect to the longitudinal position of displacement of the latter as with respect to the posi ⁇ tion of inclination of the seat back.
- Fig. 6 illustrates an embodiment which is suitable for use in vehicles without separate rear side doors. Also in this drawing figure components correspond ⁇ ing to identical components in the previous drawing figures are referred to by identical numeral references.
- the wire consists of a strap 23 that is somewhat rigid and that is equipped with a coupling means at one it its ends, i.e. in accordance with this embodiment at the end turned towards the vehicle seat.
- An electric motor 24 mounted in the sid wall is arranged to displace the strap in the lengthwise direction thereof between the outer position illustrated in the drawing figure, in which position the coupling means of the strap cooperates with and engages in a corresponding attachment means 25 provided in the back of the vehicle seat, and a retracted position, release position, allowing free access to the rear seat of the vehicle between the seat back 3 and the vehicle door frame 26.
- reel-in or retraction of the strap 23 is effected by winding it onto a strap reel-up mechanism 27 which is driven by the electric motor 24.
- the strap is also tubular and provided with a stiffening spring.
- Numeral reference 28 designates a coupling tongue designed in a manner similar to the locking tongue on safety belts of the conventional type and the coupling part 25 arranged on the seat back preferably is formed with a funnel-shaped entrance mouth to allow the coupling tongue 28 to be safely guided into the mouth when the strap 23 is reeled out.
- a release lever which frees the back of the seat so that the latter may be folded forwards.
- this lever may also serve to release the locking tongue and simultaneously, via an electric switch, to activate the motor 24 in such a manner that the free end of the strap 23 is reeled in.
- a second switch is provided which is activated when the seat back is folded back to the upright sitting posi- tion, whereby the motor 24 is made to reverse and thus guide the strap 23 back into the lock 25.
- the supply of current to the motor 24 is then interrupted.
- a limit switch may be provided to activate the motor 24 so that the strap is reeled out when the seat back is pushed forwards and reeled in when the seat back is pushed backwards.
- a simple modification of the embodiment illustrated in Fig. 6 would be to use a conventional safety belt and to mount the reel-up mechanism thereof in the vehicle side or in the back of the seat and the buckle in the seat back or the vehicle side, respectively.
- the strap may be connected manually.
- this modified embodiment clearly is surpassed by the automatically controlled device in accordance with Fig. 6, it should, however, be considered to be encompassed by the inventive idea. It is also possible to shift the device shown in Fig. 6 in such a manner that the strap storage means 27 together with the motor 24 are positioned in the seat back 3 and the coupling means 25 in the side of the vehicle.
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9002912A SE9002912D0 (en) | 1990-09-13 | 1990-09-13 | SAFETY DEVICE AT THE VEHICLE SEAT |
SE9002912-5 | 1990-09-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992005045A1 true WO1992005045A1 (en) | 1992-04-02 |
Family
ID=20380342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE1991/000598 WO1992005045A1 (en) | 1990-09-13 | 1991-09-11 | A safety means for vehicle seats |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0556190A1 (en) |
AU (1) | AU8513591A (en) |
SE (1) | SE9002912D0 (en) |
WO (1) | WO1992005045A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994027843A1 (en) * | 1993-05-27 | 1994-12-08 | Lennart Lindbald | A device in vehicle safety systems |
WO1998021064A1 (en) * | 1996-11-12 | 1998-05-22 | Hoover Universal, Inc. | Vehicle seat |
US6111165A (en) * | 1993-01-28 | 2000-08-29 | Cohesion Technologies, Inc. | Production of human recombinant collagen in the milk of transgenic animals |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2896999A (en) * | 1955-11-29 | 1959-07-28 | Liubauskas Boles | Safety device for vehicles |
DE2054917A1 (en) * | 1970-11-07 | 1972-05-10 | Daimler-Benz Ag, 7000 Stuttgart | Device for holding the backrests of the front seats of passenger cars |
SE361015B (en) * | 1971-04-14 | 1973-10-15 | K Ryen | |
FR2312268A1 (en) * | 1975-05-27 | 1976-12-24 | Leblanc Georges | Safety belt for vehicle - counterweighted length fits in sheath on door pillar and automatically locks when pulled out |
US4373748A (en) * | 1980-10-28 | 1983-02-15 | General Motors Corporation | Seat belt retracting and locking mechanism |
DE3412816A1 (en) * | 1984-04-05 | 1985-10-17 | Hans-Hellmut Dipl.-Ing. 2061 Sülfeld Ernst | SAFETY BELT ARRANGEMENT |
-
1990
- 1990-09-13 SE SE9002912A patent/SE9002912D0/en unknown
-
1991
- 1991-09-11 EP EP19910916210 patent/EP0556190A1/en not_active Withdrawn
- 1991-09-11 AU AU85135/91A patent/AU8513591A/en not_active Abandoned
- 1991-09-11 WO PCT/SE1991/000598 patent/WO1992005045A1/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2896999A (en) * | 1955-11-29 | 1959-07-28 | Liubauskas Boles | Safety device for vehicles |
DE2054917A1 (en) * | 1970-11-07 | 1972-05-10 | Daimler-Benz Ag, 7000 Stuttgart | Device for holding the backrests of the front seats of passenger cars |
SE361015B (en) * | 1971-04-14 | 1973-10-15 | K Ryen | |
FR2312268A1 (en) * | 1975-05-27 | 1976-12-24 | Leblanc Georges | Safety belt for vehicle - counterweighted length fits in sheath on door pillar and automatically locks when pulled out |
US4373748A (en) * | 1980-10-28 | 1983-02-15 | General Motors Corporation | Seat belt retracting and locking mechanism |
DE3412816A1 (en) * | 1984-04-05 | 1985-10-17 | Hans-Hellmut Dipl.-Ing. 2061 Sülfeld Ernst | SAFETY BELT ARRANGEMENT |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6111165A (en) * | 1993-01-28 | 2000-08-29 | Cohesion Technologies, Inc. | Production of human recombinant collagen in the milk of transgenic animals |
WO1994027843A1 (en) * | 1993-05-27 | 1994-12-08 | Lennart Lindbald | A device in vehicle safety systems |
WO1998021064A1 (en) * | 1996-11-12 | 1998-05-22 | Hoover Universal, Inc. | Vehicle seat |
Also Published As
Publication number | Publication date |
---|---|
AU8513591A (en) | 1992-04-15 |
SE9002912D0 (en) | 1990-09-13 |
EP0556190A1 (en) | 1993-08-25 |
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