GB998855A - Improvements in or relating to seat structures - Google Patents

Improvements in or relating to seat structures

Info

Publication number
GB998855A
GB998855A GB2326562A GB2326562A GB998855A GB 998855 A GB998855 A GB 998855A GB 2326562 A GB2326562 A GB 2326562A GB 2326562 A GB2326562 A GB 2326562A GB 998855 A GB998855 A GB 998855A
Authority
GB
United Kingdom
Prior art keywords
frame
seat part
base part
seat
screw shaft
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
GB2326562A
Inventor
Arthur Olsen Radke
Harvey Nick Tengler
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.)
Bostrom Corp
Original Assignee
Bostrom Corp
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 Bostrom Corp filed Critical Bostrom Corp
Priority to GB2326562A priority Critical patent/GB998855A/en
Publication of GB998855A publication Critical patent/GB998855A/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
    • B60N2/50—Seat suspension devices
    • B60N2/502—Seat suspension devices attached to the base of the seat
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/24—Chairs or stools with vertically-adjustable seats with vertical spindle
    • 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
    • B60N2/50—Seat suspension devices
    • B60N2/505—Adjustable suspension including height adjustment
    • 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
    • B60N2/50—Seat suspension devices
    • B60N2/506—Seat guided by rods
    • B60N2/507—Parallelogram-like structure
    • 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
    • B60N2/50—Seat suspension devices
    • B60N2/54—Seat suspension devices using mechanical springs
    • B60N2/548—Torsion springs, e.g. torsion helicoidal springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

998,855. Resiliently mounted adjustable seats. BOSTROM CORPORATION. June 6, 1962, No. 23265/62. Headings A4J and A4U. An adjustable seat comprises a seat part 12, a base part 10 and an intermediate frame 11, each relatively movable. The seat part 12 is adjustable vertically by turning a shaft 51 whose movement turns bevel gears 46, 53 and raises a nut 45 and bracket 48 connected to frame 11, so that the frame 11 is raised relative to the base part 10. Since the seat part 12 is resiliently supported on the frame 11 by parallel lever arms 59 this also moves vertically. In this movement the frame 11 is guided by two pairs of vertically acting parallelogram lever arms 24 secured to the frame 11 and base part 10, each pair is connected by pins 20, as are lever arms 59 by pins 96, to prevent listing of the frame 11 under off-centre loads. The chair frame 111 can be adjusted to move fore and aft by sliding rails 107 on balls 109 in tracks 105 connected to the seat part 12. The degree of pretension of a rubber spring 65 can be adjusted so that an impact upon the base part 10 is not transmitted to the seat part 12, by lining up a notch 90 on a crank 85 and a pin 91 on a screw shaft 79, turning the screw shaft 79 which is held against axial movement by bearing 82 and abutment 80 so that a nut 78, secured to an anchorage plate 72 of the rubber spring 65, moves along the screw shaft 79 and twists the rubber spring 65. The mechanism also includes a hydraulic shock absorber 32 comprising two telescopic parts 131, 132, connected to the seat part 12 and frame 11 by rubber joints 135, 133. A back rest frame 120 pivoted at 121 to the seat part 12 is angularly adjusted by means of a toothed slot 124 and pin 125.
GB2326562A 1962-06-16 1962-06-16 Improvements in or relating to seat structures Expired GB998855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2326562A GB998855A (en) 1962-06-16 1962-06-16 Improvements in or relating to seat structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2326562A GB998855A (en) 1962-06-16 1962-06-16 Improvements in or relating to seat structures

Publications (1)

Publication Number Publication Date
GB998855A true GB998855A (en) 1965-07-21

Family

ID=10192865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2326562A Expired GB998855A (en) 1962-06-16 1962-06-16 Improvements in or relating to seat structures

Country Status (1)

Country Link
GB (1) GB998855A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2284756A (en) * 1993-12-08 1995-06-21 Dale Roger Lloyd Harding Elevator mechanism for a chair
US5944382A (en) * 1996-10-09 1999-08-31 Center For Design Research And Development N.V. Adjustable seating

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2284756A (en) * 1993-12-08 1995-06-21 Dale Roger Lloyd Harding Elevator mechanism for a chair
GB2284756B (en) * 1993-12-08 1997-10-29 Dale Roger Lloyd Harding Elevator mechanism for a chair
US5944382A (en) * 1996-10-09 1999-08-31 Center For Design Research And Development N.V. Adjustable seating

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