US357183A - Tilting-chair - Google Patents
Tilting-chair Download PDFInfo
- Publication number
- US357183A US357183A US357183DA US357183A US 357183 A US357183 A US 357183A US 357183D A US357183D A US 357183DA US 357183 A US357183 A US 357183A
- Authority
- US
- United States
- Prior art keywords
- chair
- seat
- lever
- arm
- tilting
- 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
Links
- 230000001105 regulatory Effects 0.000 description 4
- 230000036633 rest Effects 0.000 description 4
- 230000003467 diminishing Effects 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 230000002459 sustained Effects 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
- A47C7/443—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
- A47C7/441—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with adjustable elasticity
Definitions
- the object of my invention is to provide a chair having a back so arranged in connection with a spring that it conforms to different positions when it is occupied by a person sitting in the chair and leaning backward,thereby forming a back-rest.
- I attain this Object by the mechanismillustrated in the accompany? ing drawings, in which- Figure l representsasideUeft) view of chair, dotted lines representing chair in position when occupied, with the back pressed backward.
- Fig. 2 represents the bottom of the chair as viewed from underneath.
- Fig. 3 rep! resents the chair as yiewed from the front, showing lifting-lever.
- A is a stationary seat
- B anarm, one part halfway up from they seat, both parts being fastened to the back, both arm and back working on a pivot at the side of the seat, which passes through the lower part of the arm and directly into the side edge of the seat
- L ⁇ a
- C is a plate secured to the seat, in which the screw D is fastened with a set-screw, c.
- the spring F rests upon and is sustained by one arm ofa lever, E,.which lever is supported by a pivotal bearing, N, the other arm of which 1S supported and held by the regulating-lever G.
- M represents bearings for the regulating lever G.
- a rod, H which extends through a lng, ⁇ O, at the side of the seat.
- One end of this rod is provided with a screw-thread and nut, which sets'in an angular depression in one arm of the lever G, to prevent it from turning, and the opposite end is secured by means of a knob rigidly attached thereto and bearing against the outer face of the lug O.V ⁇
- V knob H By turning the V knob H to the right or left the thread upon the end of the rod operates within the nut O and varies the tension of the spring for the purpose of increasing and diminishing the resistance to the back I.
Landscapes
- Chairs Characterized By Structure (AREA)
Description
(NovMoael.) C. E. DAVIS.
TILTING CHAIR.
Patented Peb.
Fig-:1-
Witnesses:
N. Pneus, Pmwmhnmphnr, wnhhgmn, mc.
passing around parallel with the edge of the seat, the other part joining the back about UNITED STATES PATENT OFFICE.'
cHAHLEs E. DAvis, OE COLUMBUS, OHIO.
TILTlNe-CHAIR.
SPECIFIATION forming part of Letters Patent No. 357,183, dated February 8, 1887.
` Application filed July 15, 1886. ASerial No. 208,160. (No model.)
.Toall whom it may concern.'
Be it'known that I, CHARLES E. DAvis, a citizen of the United States, residing at Columbus, in the county of FranklinY and State of,
ing only a rotary motion, and not to chairs. having a tilting seat, as in tilting-chairs.
The object of my invention is to provide a chair having a back so arranged in connection with a spring that it conforms to different positions when it is occupied by a person sitting in the chair and leaning backward,thereby forming a back-rest. I attain this Object by the mechanismillustrated in the accompany? ing drawings, in which- Figure l representsasideUeft) view of chair, dotted lines representing chair in position when occupied, with the back pressed backward. Fig. 2 represents the bottom of the chair as viewed from underneath. Fig. 3 rep! resents the chair as yiewed from the front, showing lifting-lever.
l Si milarletters refer to similar parts through-V out the different views.
A is a stationary seat; B, anarm, one part halfway up from they seat, both parts being fastened to the back, both arm and back working on a pivot at the side of the seat, which passes through the lower part of the arm and directly into the side edge of the seat; L, `a
cross-piece secured to the under side of the arms and rests on the spring F.
C is a plate secured to the seat, in which the screw D is fastened with a set-screw, c. The spring F rests upon and is sustained by one arm ofa lever, E,.which lever is supported by a pivotal bearing, N, the other arm of which 1S supported and held by the regulating-lever G.
M represents bearings for the regulating lever G. To one arm of lever G is secured a rod, H, which extends through a lng, `O, at the side of the seat. One end of this rod is provided with a screw-thread and nut, which sets'in an angular depression in one arm of the lever G, to prevent it from turning, and the opposite end is secured by means of a knob rigidly attached thereto and bearing against the outer face of the lug O.V` By turning the V knob H to the right or left the thread upon the end of the rod operates within the nut O and varies the tension of the spring for the purpose of increasing and diminishing the resistance to the back I.
I do not herein claim to bel the inventor,
broadly, of achair having a stationary seat in i seat, a back with arms pivoted thereto, said back resting on and supported by acoil-spring, which is in turn supported by one arm of a lever, having pivotal bearings secured to the seat portion ofthe chair, the other arm=of said llever being attached to mechanism for regulating thetension of the spring, substantially as described.
oHARLEs DAvis.
Publications (1)
Publication Number | Publication Date |
---|---|
US357183A true US357183A (en) | 1887-02-08 |
Family
ID=2426226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US357183D Expired - Lifetime US357183A (en) | Tilting-chair |
Country Status (1)
Country | Link |
---|---|
US (1) | US357183A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004075691A3 (en) * | 2003-02-25 | 2004-10-21 | Erreti Snc Di Rinaldo Tonin & | Cushioning device to cushion the backrest of a chair, an armchair, an office chair or similar |
US20040227385A1 (en) * | 2003-03-04 | 2004-11-18 | Pro-Cord Spa | Chair with oscillating seat |
-
0
- US US357183D patent/US357183A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060061171A1 (en) * | 2003-02-24 | 2006-03-23 | Erreti Snc Di Rinaldo Tonin & C. | Cushioning device to cushion the backrest of a chair, an armchair, an office chair or similar |
WO2004075691A3 (en) * | 2003-02-25 | 2004-10-21 | Erreti Snc Di Rinaldo Tonin & | Cushioning device to cushion the backrest of a chair, an armchair, an office chair or similar |
US7249801B2 (en) | 2003-02-25 | 2007-07-31 | Erreti Snc Di Rinaldo Tonin & C. | Cushioning device to cushion the backrest of a chair, an armchair, an office chair or similar |
US20040227385A1 (en) * | 2003-03-04 | 2004-11-18 | Pro-Cord Spa | Chair with oscillating seat |
US6929327B2 (en) * | 2003-03-04 | 2005-08-16 | Pro-Cord Spa | Chair with oscillating seat |
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