US160624A - Improvement in tiltlng-chairs - Google Patents

Improvement in tiltlng-chairs Download PDF

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Publication number
US160624A
US160624A US160624DA US160624A US 160624 A US160624 A US 160624A US 160624D A US160624D A US 160624DA US 160624 A US160624 A US 160624A
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United States
Prior art keywords
frame
chair
rollers
chairs
arched
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Expired - Lifetime
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    • 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
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/045—Longitudinal adjustment by means of articulated rods supporting the seat, e.g. parallelogram mechanisms
    • 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
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/0257—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame slidingly movable in the base frame, e.g. by rollers
    • 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
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/027—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with curved rocking members between seat and base frame

Definitions

  • This invention relates to certain improvements in that class of chairs which have a revolving and tilting motion; and the invention consistsof two arched frames secured to the bottom of the seat at each side thereof, to which is adapted rollers journaled to a small frame or block loosely connected with the legs of the chair, so as to revolve on the same, whereby the seat of the chair has a rocking motion by means of the arched frame traversing the rollers, as will be hereinafter more fully described.
  • Figure 1 represents a side elevation of a chair with my invention applied thereto.
  • Fig. 2 is a perspective view of the roller-frame and arched frame.
  • the seat and back of the chair may be of any desired pattern or style, and to the under side of the seat, at or near its sides, is secure: ly attached two arched frames or supports, A A, having flanges a at their ends, provided with openings for the passage of screws for holding them in position.
  • the arched frames are each provided with an arc shaped or curved slot extending nearly the entire distance of the frames, and in said slots are adapted to work rollers b b, which are journaled to vertical arms at or near the side corners of a rectangular or square block or frame, B, mounted on the leg-frame O of the chair.
  • the upper end of the leg-frame is provided with a cylindrical tenon, 0, adapted.
  • roller-frame may be provided with the usual screw-threaded shank adapted to a screw-threaded socket passing through the leg-frame.
  • I provide a chair which has an easy and comfortable rocking or tilting motion, and capable of revolving, rendering it very desirable as an/- office-chair.
  • the arched frame traverses the rollers, and that when the chair is being used it may be inclined forward to accommodate a person when reaching forward to procure an article, say, for instance, at his desk; and, further, the seat can be inclined forward or backward, as shown in the full lines and dotted lines, or retained in a horizontal position, as the occupant may desire.
  • the frame B having the vertical arms provided with rollers b, in combination with the frames A, having the curved slots in which the rollers operate, and the flanges a for securing them to the chair-seat, substantially as and for the purpose described.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chairs Characterized By Structure (AREA)

Description

c. F. SPENCER.
Tilting-Chair. N0.-160, 2 PatentedMarch9,l875.
THE GRAPH I000. PHOTO rLlTH-SQ ll 4] PARK PLAOEJi-Y.
UNITED STATES PATENT OFFICE.
CHARLES FwSPENO/ER, OF CLEVELAND, OHIO.
IMPROVEMENT IN TlLTlNG-CHAIRS.
Specification forming part of Letters Patent No. 160,624, dated March 9, 1875; application filed February 26, 1875.
To all whom it may concern:
Be it known that 1, CHARLES F. SPENoER. of Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain newand useful Improvements in Tilting- Chairs, of which the following is a specification:
This invention relates to certain improvements in that class of chairs which have a revolving and tilting motion; and the invention consistsof two arched frames secured to the bottom of the seat at each side thereof, to which is adapted rollers journaled to a small frame or block loosely connected with the legs of the chair, so as to revolve on the same, whereby the seat of the chair has a rocking motion by means of the arched frame traversing the rollers, as will be hereinafter more fully described.
In the accompanying drawings, Figure 1 represents a side elevation of a chair with my invention applied thereto. Fig. 2 is a perspective view of the roller-frame and arched frame.
The seat and back of the chair may be of any desired pattern or style, and to the under side of the seat, at or near its sides, is secure: ly attached two arched frames or supports, A A, having flanges a at their ends, provided with openings for the passage of screws for holding them in position. The arched frames are each provided with an arc shaped or curved slot extending nearly the entire distance of the frames, and in said slots are adapted to work rollers b b, which are journaled to vertical arms at or near the side corners of a rectangular or square block or frame, B, mounted on the leg-frame O of the chair. In the present instance the upper end of the leg-frame is provided with a cylindrical tenon, 0, adapted. to a central circular opening or aperture in the roller-frame, for allowing the latter to revolve on the tenon to give the revolving or rotary motion to the chairseat; but it is evident that the roller-frame may be provided with the usual screw-threaded shank adapted to a screw-threaded socket passing through the leg-frame.
By the construction above specified, I provide a chair which has an easy and comfortable rocking or tilting motion, and capable of revolving, rendering it very desirable as an/- office-chair.
It will be seen that the arched frame traverses the rollers, and that when the chair is being used it may be inclined forward to accommodate a person when reaching forward to procure an article, say, for instance, at his desk; and, further, the seat can be inclined forward or backward, as shown in the full lines and dotted lines, or retained in a horizontal position, as the occupant may desire.
Instead of providing the arched frame with an arc-shaped or curved slot, I design casting the same in a solid piece, possessing the arched or curved shape, and journal to the block or frame B, at each side of the same, three rollers, b, in such a manner that one of said rollers shall traverse the upper surface of the arched frame, and the remaining two shall traverse its under surface, thus practically accomplishing the result before mentioned; and, further, it is evident that, instead of the journaled rollers, the frame B could be provided'with projections which would answer the same purpose as the rollers.
I am enabled by the above construction to dispense with all springs for giving a tilting motion to the chair, which are very liable to break, and require frequent renewal; and, further, provide a tilting-chair, the structure of which possesses great strength and durability.
I claim as 1ny'invention The frame B, having the vertical arms provided with rollers b, in combination with the frames A, having the curved slots in which the rollers operate, and the flanges a for securing them to the chair-seat, substantially as and for the purpose described.
In testimony that I claim the foregoing I have hereunto set my hand.
. CHAS. F. SPENCER.
Witnesses:
JAMES L. NORRIS, A. H. Noimrs.
US160624D Improvement in tiltlng-chairs Expired - Lifetime US160624A (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135550A (en) * 1961-11-29 1964-06-02 American Optical Corp Adjustable chair for professional purposes
US3856350A (en) * 1972-03-21 1974-12-24 D Duke Chairs
US4452449A (en) * 1982-03-22 1984-06-05 Herman Miller, Inc. Office seating with activity features
US5048893A (en) * 1990-07-16 1991-09-17 Benjamin Cowan Ergonomic chair
US5577802A (en) * 1993-02-22 1996-11-26 Cke Technologies, Inc. Adjustable chair
US6126186A (en) * 1998-11-09 2000-10-03 Invacare Corporation Constant center of gravity tilt seat of a wheelchair
US9694294B1 (en) * 2015-12-31 2017-07-04 Oculus Vr, Llc Navigation controller for virtual-reality systems
AU2018201595B1 (en) * 2018-03-06 2019-05-16 Ruoey Lung Enterprise Corp. Base Seat for Bed or Chair
US20190298064A1 (en) * 2018-03-30 2019-10-03 Lung-Tan Shih Base seat for bed or chair
US10464679B2 (en) * 2017-08-22 2019-11-05 Ami Industries, Inc. Stowable seat with pivoting seat pan for advanced comfort
US20200069487A1 (en) * 2018-09-04 2020-03-05 Joseph Shea Tracked Chair
US20230086312A1 (en) * 2019-12-11 2023-03-23 Richard Johnson Duncan, III Dynamic furniture featuring pendulum-like motion

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135550A (en) * 1961-11-29 1964-06-02 American Optical Corp Adjustable chair for professional purposes
US3856350A (en) * 1972-03-21 1974-12-24 D Duke Chairs
US4452449A (en) * 1982-03-22 1984-06-05 Herman Miller, Inc. Office seating with activity features
US5048893A (en) * 1990-07-16 1991-09-17 Benjamin Cowan Ergonomic chair
US5577802A (en) * 1993-02-22 1996-11-26 Cke Technologies, Inc. Adjustable chair
US6126186A (en) * 1998-11-09 2000-10-03 Invacare Corporation Constant center of gravity tilt seat of a wheelchair
US6206393B1 (en) * 1998-11-09 2001-03-27 Invacare Corporation Constant center of gravity tilt seat of a wheelchair
US10226710B2 (en) 2015-12-31 2019-03-12 Facebook Technologies, Llc Navigation controller for virtual-reality systems
US9694294B1 (en) * 2015-12-31 2017-07-04 Oculus Vr, Llc Navigation controller for virtual-reality systems
US10464679B2 (en) * 2017-08-22 2019-11-05 Ami Industries, Inc. Stowable seat with pivoting seat pan for advanced comfort
AU2018201595B1 (en) * 2018-03-06 2019-05-16 Ruoey Lung Enterprise Corp. Base Seat for Bed or Chair
US20190298064A1 (en) * 2018-03-30 2019-10-03 Lung-Tan Shih Base seat for bed or chair
US20200069487A1 (en) * 2018-09-04 2020-03-05 Joseph Shea Tracked Chair
US10918543B2 (en) * 2018-09-04 2021-02-16 Joseph Shea Tracked chair
US20230086312A1 (en) * 2019-12-11 2023-03-23 Richard Johnson Duncan, III Dynamic furniture featuring pendulum-like motion
US11759015B2 (en) * 2019-12-11 2023-09-19 Richard Johnson Duncan, III Dynamic furniture featuring pendulum-like motion

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