US187944A - Improvement in folding chairs - Google Patents

Improvement in folding chairs Download PDF

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US187944A
US187944A US187944DA US187944A US 187944 A US187944 A US 187944A US 187944D A US187944D A US 187944DA US 187944 A US187944 A US 187944A
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chair
seat
legs
improvement
folding chairs
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C4/00Foldable, collapsible or dismountable chairs
    • A47C4/04Folding chairs with inflexible seats
    • A47C4/08Folding chairs with inflexible seats having a frame made of wood or plastics
    • A47C4/10Folding chairs with inflexible seats having a frame made of wood or plastics with legs pivotably connected to seat or underframe

Definitions

  • Fig. 3 is a plan view, partly in section, of the chair when folded and laid down with its rear side up.
  • My invention relates to certain improvements in folding chairs; and it consists in a chair having the rear legs and back made in one piece, with a seat hinged to the same at the rear and free to fold upwardly at its front, in connection with which elements are arranged a set of front legs with tenons at their upper ends, which enter mortises in the chairseat, the said front legs being connected with the seat and back by means of side braces pivoted to the front legs and the middle part of the seat, and the back of the chair, and provided with an upwardly-folding to'gglejoint, whereby the parts of the chair may be folded compactly, and in such manner as to stand alone upon its four legs, as hereinafter more fully described.
  • A represents the back of the chair, whose side bars are extended to form the rear legs B.
  • O is the seat, which is cut away on the sides at the rear, and is hinged or pivoted at these points between the back or rear legs of the chair at a.
  • D are the front legs, which are rigidly fastened to each other, and are provided at the top with tenons b, which enter corresponding recesses or mortises b in the under front edge of the seat, to hold the same stiffly in position when disposed for use.
  • E are the side braces, which are pivoted in front to the front legs at o, and extending rearwardly and upwardly are pivoted to the middle portion of the seat at c, and also to the back at 0 a toggle-joint being formed in the said braces between the points 0 0 which permit the upward bending of the brace and the folding of the parts of the chair.
  • This toggle-joint is formed by recessing the under side of the brace, and pivoting therein a metallic bar, d, which latter is at its rear end bent at right angles, and then bent aroundin tubular form, as at d, which portion passes through the sides of the back of the chair to form pivots, upon which the bars move without separate devices for this purpose.
  • I may form the toggle-joint or stiffening device in the brace below the seat, as indicated in dotted lines, Fig. 1, and connect the seat with the same by means of a link or other equivalent device.
  • the chair can be folded compactly and with the bottom of all its legs in the same plane, thus enabling the chair to stand alone even when folded.

Description

J. A. WARE.
FOLDING-CHAIR.
No. 187,944. Patented Feb.27,1877.
i B. v d M] WITNESSES: INVENTIIB:
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ATTORNEYS.
N PETERSI FHOTO-LITHOGRRPHFJL WASHINGTON, D C.
UNITED STATES PATENT OFFICE JOHN A. WARE, OF MORRIS, ILLINOIS.
.IMPROVEMENT IN FOLDING CHAIRS.
Specification forming part of Letters Patent No. l87,944,'dated February 27, 1877 application filed December 16,1876.
To all whom it may concern Be it known that I, JOHN A. WARE, of Morris, in the county of Grundy and State of Illinois, have invented a new and Improved Folding Chair; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, forming part of this specification, in which- Figure 1 is a side elevation of the chair disposed for use, partly in section, and with a modification of the toggle arms shown in dotted lines. Fig. 2 is a side elevation of the chair when folded, but supported upon its legs.
Fig. 3 is a plan view, partly in section, of the chair when folded and laid down with its rear side up.
My invention relates to certain improvements in folding chairs; and it consists in a chair having the rear legs and back made in one piece, with a seat hinged to the same at the rear and free to fold upwardly at its front, in connection with which elements are arranged a set of front legs with tenons at their upper ends, which enter mortises in the chairseat, the said front legs being connected with the seat and back by means of side braces pivoted to the front legs and the middle part of the seat, and the back of the chair, and provided with an upwardly-folding to'gglejoint, whereby the parts of the chair may be folded compactly, and in such manner as to stand alone upon its four legs, as hereinafter more fully described.
In the drawing, A represents the back of the chair, whose side bars are extended to form the rear legs B. O is the seat, which is cut away on the sides at the rear, and is hinged or pivoted at these points between the back or rear legs of the chair at a. D are the front legs, which are rigidly fastened to each other, and are provided at the top with tenons b, which enter corresponding recesses or mortises b in the under front edge of the seat, to hold the same stiffly in position when disposed for use. E are the side braces, which are pivoted in front to the front legs at o, and extending rearwardly and upwardly are pivoted to the middle portion of the seat at c, and also to the back at 0 a toggle-joint being formed in the said braces between the points 0 0 which permit the upward bending of the brace and the folding of the parts of the chair. This toggle-joint is formed by recessing the under side of the brace, and pivoting therein a metallic bar, d, which latter is at its rear end bent at right angles, and then bent aroundin tubular form, as at d, which portion passes through the sides of the back of the chair to form pivots, upon which the bars move without separate devices for this purpose.
As a modification of my invention I may form the toggle-joint or stiffening device in the brace below the seat, as indicated in dotted lines, Fig. 1, and connect the seat with the same by means of a link or other equivalent device.
With the chair constructed as thus described it will be seen that the chair can be folded compactly and with the bottom of all its legs in the same plane, thus enabling the chair to stand alone even when folded.
Having thus described my invention, what I claim as new is 1. The combination, with the back and rear legs A B, of the seat 0, pivoted to the same at a, and having recesses b, the front legs D having tenons b, and the side braces E, pivoted to the front legs at c, to the seat at c, and to the back at 0 and having an upwardlyfolding toggle-joint, substantially as and for the purpose described.
2. The combination, with the back A, of the bar 11, bent at right angles and then in tubular form, d, to form a pivot, substantially as and for the purpose described.
JOHN A. WARE. Witnesses:
Tnos. G. SLOAN,
Guns. S. Hmmron.
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