GB1470578A - Vehicle seat with adjustable backrest - Google Patents

Vehicle seat with adjustable backrest

Info

Publication number
GB1470578A
GB1470578A GB3100574A GB3100574A GB1470578A GB 1470578 A GB1470578 A GB 1470578A GB 3100574 A GB3100574 A GB 3100574A GB 3100574 A GB3100574 A GB 3100574A GB 1470578 A GB1470578 A GB 1470578A
Authority
GB
United Kingdom
Prior art keywords
wheel
backrest
stay
seat
pivoted
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3100574A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daimler Benz AG
Original Assignee
Daimler Benz AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler Benz AG filed Critical Daimler Benz AG
Publication of GB1470578A publication Critical patent/GB1470578A/en
Expired legal-status Critical Current

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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/23—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by linear actuators, e.g. linear screw mechanisms
    • B60N2/233—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable by linear actuators, e.g. linear screw mechanisms by linear screw mechanisms

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Seats For Vehicles (AREA)

Abstract

1470578 Adjustable seat backs DAIMLERBENZ AG 12 July 1974 [21 July 1973] 31005/74 Heading A4J [Also in Division E2] In a vehicle seat the backrest is pivoted to the seat frame and is adjusted for angle by varying the length of stays at each side, each stay being pivoted at one end to the seat frame and at the other end to the backrest, the arrangement being such that the triangle formed from the backrest/seat pivot and the two stay pivots is always within the contour of the backrest, and the adjustment mechanisms of the stays being connected by a transmission tranverse to the seat. In one embodiment Fig. 3 the backrest 3 is pivoted at 5 to a seat frame bracket 6. Each stay 17 is of L-shaped form and is also pivoted, at 7, to the bracket 6. A rack 16 on the stay meshes with wheel 13 supported by the backrest, the stay being constrained to stay in mesh with the wheel by sliding in a saddle 18 pivotally secured to the backrest. Wheel 13 is driven by a hand wheel 10 via gearing 11, 12, the hand wheel shaft 10a being used to inter-connect the identical systems on each side of the seat. Due to the gear ratio the adjuster is self locking, but a friction pad 19 on the wheel 11 may engage the backrest. A spring may be used to bias the friction pad, which spring-bias may be removed by an axial movement of the hand wheel or a plunger. In an accident sudden tension on the stay 17 will cause straightening of weakened portion 22 resulting in engagement of the rack with abutment 23 to provide a positive lock. In an alternative embodiment, Fig. 4, each stay comprises a pair of side plates 27 pivoted at 7 to bracket 6, the plates 27 supporting an internally threaded worm-wheel 30 which engages the threaded rail 26. An eye on the rod is pivoted to bracket 25. The worm-wheel is driven by a worm 31 supported by ears 32 of plates 27, and the hand wheel shaft 10a once again inter-connects the identical devices on both sides of the seat. In this embodiment the gear ratio between worm and wheel, and wheel and rod are both self locking and no further emergency locking is necessary.
GB3100574A 1973-07-21 1974-07-12 Vehicle seat with adjustable backrest Expired GB1470578A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732337244 DE2337244A1 (en) 1973-07-21 1973-07-21 VEHICLE SEAT WITH BACKREST ADJUSTMENT

Publications (1)

Publication Number Publication Date
GB1470578A true GB1470578A (en) 1977-04-14

Family

ID=5887677

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3100574A Expired GB1470578A (en) 1973-07-21 1974-07-12 Vehicle seat with adjustable backrest

Country Status (4)

Country Link
DE (1) DE2337244A1 (en)
FR (1) FR2237777B1 (en)
GB (1) GB1470578A (en)
IT (1) IT1013446B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT7953152V0 (en) * 1979-04-11 1979-04-11 Comind Spa SEAT IN POLYMER MATERIAL OF THE TYPE WITH ADJUSTABLE INCLINATION BACKREST PARTICULARLY FOR CARS
DE2925781A1 (en) * 1979-06-26 1981-01-15 Brose & Co Metallwerk Max Automatic adjustment system for headrest of driving seat - uses programmable memory to store height and inclination on receipt of call system
DE3003175A1 (en) * 1980-01-30 1981-08-06 Keiper Automobiltechnik Gmbh & Co Kg, 5630 Remscheid Rake adjustment for car seat - has spindle drive with servo driven coaxial worm gear
DE202004005225U1 (en) * 2004-04-02 2005-08-18 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Seat back adjuster in motor vehicle has linear actuator as spindle or rack drive fitted along with guide on seat back, and articulated plate is supported on seat bottom section via support bearing
DE202004006273U1 (en) * 2004-04-21 2005-09-01 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Motor vehicle seat adjusting unit, has spindle pinion with spindle and spindle nut, and motor connected to gear that drives spindle pinion, where motor includes crank and stud, and spindle nut is supported in gear

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802516A (en) * 1952-12-23 1957-08-13 T & C Aircraft Corp Seat construction
DE1852701U (en) * 1962-02-22 1962-05-30 Fritsch & Co O H G CONTINUOUSLY ADJUSTING DEVICE FOR THE BACKREST OF A MOTOR VEHICLE SEAT.
FR1477279A (en) * 1965-09-24 1967-04-14 Happich Gmbh Gebr Seat, in particular for motor vehicles, comprising a gradually adjustable backrest
DE2032833C3 (en) * 1970-07-02 1974-12-12 Keiper Gmbh & Co, 7170 Schwaebisch Hall Adjusting device for vehicle seats
DE2226055A1 (en) * 1972-05-29 1973-12-13 Keiper Recaro Gmbh Co SEAT, IN PARTICULAR FOR MOTOR VEHICLES

Also Published As

Publication number Publication date
DE2337244A1 (en) 1975-02-06
FR2237777B1 (en) 1978-02-17
FR2237777A1 (en) 1975-02-14
IT1013446B (en) 1977-03-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee