US3814475A - Seats - Google Patents

Seats Download PDF

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Publication number
US3814475A
US3814475A US00309117A US30911772A US3814475A US 3814475 A US3814475 A US 3814475A US 00309117 A US00309117 A US 00309117A US 30911772 A US30911772 A US 30911772A US 3814475 A US3814475 A US 3814475A
Authority
US
United States
Prior art keywords
seat
back rest
spring
bucket
eccentric
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 - Lifetime
Application number
US00309117A
Other languages
English (en)
Inventor
W Ritz
S Slabon
L Kasten
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.)
Wilkhahn Wilkening and Hahne GmbH and Co KG
Original Assignee
Wilkhahn Wilkening and Hahne GmbH and Co KG
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 Wilkhahn Wilkening and Hahne GmbH and Co KG filed Critical Wilkhahn Wilkening and Hahne GmbH and Co KG
Application granted granted Critical
Publication of US3814475A publication Critical patent/US3814475A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable inclination
    • A47C1/0246—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable inclination by means of screw-and-nut mechanism

Definitions

  • the present invention provides a bucket seat, comprising a seat portion, a back rest portion, a hinge pivotally connecting the seat portion to the back portion, and adjuster means connected to the back rest portion for continuous adjustment of the angle of tilt of said back rest portion relative to the seat portion.
  • a bucket seat having adjuster means for continuous adjustment of the angle of tilt of the back rest portion of the seat.
  • a bucket seat comprising a dished seat portion, a dished back rest portion hinged to the seat portion, a bendable member extending transverse to the hinge axis and attached at one end to one of the said portions, and adjusting means manually operable to produce relative movement between the member and the other said portion, whereby to cause tilting of theback rest portion relative to the seat portion.
  • FIG. 1 is an isometric view of the seat
  • FIG. 2 is' a plan view of part of the back rest operating mechanism of the seat of FIG. 1;
  • a threaded portion 4a of the spindle 4 has an unthreaded portion 4b, which includes a circumferentially extending groove 4c.
  • the actuating member in the illustrated embodiment consists of a strip 7 having part 70 and 7b which are joined by a hinged joint at 8 (FIG. 1 7
  • part 7 is attached to the rear face of the back rest 2.
  • the two pins 6 positively locate in and frictionally engagethe groove 4c. To prevent this connection from being broken, the tops of the two pins 6 may be bridged.
  • the threaded spindle 4 can be rotated via a flexible shaft 9 by rotation of a knob 10 at one end of the shaft 9.
  • the knob 10 When the user wishes to tip the back rest in one direction or the other, the knob 10 is rotated in the appropriate direction, this rotates the flexible shaft 9 and hence the threaded spindle 4. Rotary motion of the threaded spindle 4 is converted by the pins 6 into a translation of the strip 7. Since part 7b of the strip 7 is rigidly attached to the back rest 2, and hinges 3 are disposed in front of this point of attachement, a turning moment is applied tothe back rest 2 which tips.
  • Allowance for the movement of the back rest as it is tipped is made by the hinge 8.
  • FIGS. 3 and 4 show another form of back rest adjuster mechanism. For greater clarity, only part of the seat portion and back rest is shown in these drawings.
  • the back rest adjuster mechanism includes a flat or leaf spring 11, acted upon by a tension spring 12.
  • Flat spring 11 lies longitudinally of the seat (that is, in the same direction as strip 7 in FIG. 1).
  • One end of tension spring 12 is anchored ina slot Ila in the flat spring 11, while the other end of spring 12 is held in a cross bracket 13.
  • the flat spring 11 can be gripped by a clamp device comprising an eccentric l4 operated by a lever 15.
  • the portion of the lever 15 indicated at 15a is substantially parallel to one side of the seat 1. Movement of the portion 15a of lever 15 is in a vertical plane parallel to that side of the seat.
  • a turning moment is applied to the back rest 2 which tilts forwardly about hinges 3.
  • a carrier 17 Connected to one end of the flat spring 11 by a carrier 17 is a stop 18 which may, for example, be a rubber buffer, for limiting the forward tilting action of the back rest by bearing against one edge 19a of a plate 19 attached to the seat portion 1.
  • the described back rest adjuster mechanisms have comparatively few parts which are little exposed to wear.
  • the mechanisms occupy so little room that they can readily be accommodated between the seat portion of the bucket seat and associated upholstery and they are outwardly unobtrusive.
  • a bucket seat comprising a seat portion, a back rest portion,
  • a bucket seat as claimed in claim 1 having a stop a hinge Pivotany connecting the S Pol/don to the 5 mounted to limit forward tilting of the seat back rest,
  • adjuster means connected to the back rest portion for continuous adjustment of the angle of tilt of said back rest portion relative to the seat portion, said adjuster means including a flat spring joined at one end to the back rest portion,
  • a clamp device mounted to releasablyclamp the flat spring, actuation of the clamp device allowing the tension spring to act on the flat spring and tilt the back rest portion relative to the seat portion.
  • a bucket seat comprising a dished seat portion, a dished back rest portion hinged to the seat portion, a bendable member extending transverse to the hinge axis and attached at one end to one of the said portions, and adjusting means manually operable to producerelative movement between the member and the other said portion, whereby to cause tilting of the back rest portion relative to the seat portion, said adjusting means comprising spring means acting between the member and the said other portion ofthe seat, and releasable clamping means for releasably clamping the member and the said otherportion of the seat against the action of the seat. 6.
  • the bendable member is a leaf spring.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Passenger Equipment (AREA)
US00309117A 1971-12-03 1972-11-24 Seats Expired - Lifetime US3814475A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7145582 1971-12-03

Publications (1)

Publication Number Publication Date
US3814475A true US3814475A (en) 1974-06-04

Family

ID=6625496

Family Applications (1)

Application Number Title Priority Date Filing Date
US00309117A Expired - Lifetime US3814475A (en) 1971-12-03 1972-11-24 Seats

Country Status (10)

Country Link
US (1) US3814475A (de)
JP (1) JPS4863856A (de)
AT (1) AT315414B (de)
BE (1) BE791580A (de)
CH (1) CH555164A (de)
ES (1) ES405604A1 (de)
FR (1) FR2164162A5 (de)
GB (1) GB1382172A (de)
IT (1) IT975667B (de)
NL (1) NL7209907A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045079A (en) * 1976-05-17 1977-08-30 General Motors Corporation Inertia seat back lock
US4181357A (en) * 1978-03-20 1980-01-01 Milsco Manufacturing Company Seat backrest tilt and height adjustment means
US4795212A (en) * 1988-01-29 1989-01-03 Herman Miller, Inc. Chair back adjustment
DE3929435A1 (de) * 1989-04-03 1990-10-11 Sears Mfg Co Fahrzeugsitz
NL1009427C2 (nl) 1998-06-17 1999-12-20 Stichting Inst Dierhouderij Inrichting en werkwijze voor de vorming van een verbinding tussen een lichaamsruimte en de omgeving.
DE19849994A1 (de) * 1998-10-30 2000-05-11 Audi Ag Fahrzeugsitz
US6086155A (en) * 1998-06-15 2000-07-11 P.L. Porter Co. Rotary seat adjustment mechanism
US11135944B2 (en) * 2018-11-01 2021-10-05 Toyota Jidosha Kabushiki Kaisha Vehicle seat

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2878284A (en) * 1983-05-31 1984-12-06 I.H.W. Engineering Ltd. Reclining seat
SE500832C2 (sv) * 1992-03-05 1994-09-12 Mercado Medic Ab Anordning vid en stol

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583762A (en) * 1968-04-27 1971-06-08 Recaro Ag Seat for a motor vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583762A (en) * 1968-04-27 1971-06-08 Recaro Ag Seat for a motor vehicle

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045079A (en) * 1976-05-17 1977-08-30 General Motors Corporation Inertia seat back lock
US4181357A (en) * 1978-03-20 1980-01-01 Milsco Manufacturing Company Seat backrest tilt and height adjustment means
US4795212A (en) * 1988-01-29 1989-01-03 Herman Miller, Inc. Chair back adjustment
EP0326159A3 (en) * 1988-01-29 1990-04-18 Herman Miller, Inc. Chair back adjustment
DE3929435A1 (de) * 1989-04-03 1990-10-11 Sears Mfg Co Fahrzeugsitz
US6086155A (en) * 1998-06-15 2000-07-11 P.L. Porter Co. Rotary seat adjustment mechanism
NL1009427C2 (nl) 1998-06-17 1999-12-20 Stichting Inst Dierhouderij Inrichting en werkwijze voor de vorming van een verbinding tussen een lichaamsruimte en de omgeving.
WO1999065319A1 (en) 1998-06-17 1999-12-23 Stichting Dienst Landbouwkundig Onderzoek Device and method for the formation of a connection between a body space and the surroundings
DE19849994A1 (de) * 1998-10-30 2000-05-11 Audi Ag Fahrzeugsitz
DE19849994C2 (de) * 1998-10-30 2002-12-19 Audi Ag Fahrzeugsitz
DE19849994C5 (de) * 1998-10-30 2006-12-14 Audi Ag Fahrzeugsitz
US11135944B2 (en) * 2018-11-01 2021-10-05 Toyota Jidosha Kabushiki Kaisha Vehicle seat

Also Published As

Publication number Publication date
ES405604A1 (es) 1976-01-16
GB1382172A (en) 1975-01-29
IT975667B (it) 1974-08-10
JPS4863856A (de) 1973-09-05
BE791580A (fr) 1973-03-16
AT315414B (de) 1974-05-27
CH555164A (de) 1974-10-31
FR2164162A5 (de) 1973-07-27
NL7209907A (de) 1973-06-05

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