Chairs and seats – Movable bottom – Tiltable
Patent
1999-06-09
2000-09-19
Cuomo, Peter M.
Chairs and seats
Movable bottom
Tiltable
2973541, 29735411, 29744024, 29745213, 2974522, 297229, A47C 102
Patent
active
061200972
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
Many forms of flexible and reclining chairs are generally known. For example, the following patents to Charles O. Perry disclose improvements to such chairs. U.S. Pat. No. 5,009,466 discloses a reclining chair having multi-axis pivotal support. U.S. Pat. No. 5,383,712 discloses a flexible tubular chair having a unique pivotal back arrangement and well suited for high density stacking. U.S. Pat. No. 5,338,094 discloses a flexible tubular chair incorporating the pivotal back arrangement of the '712 patent but including a unique support fork that provides improved reclining for the flexible chair. U.S. Pat. No. 5,626,394 discloses an improved flexible stacking chair wherein chairs with or without arms may be stacked interchangeably.
SUMMARY OF THE INVENTION
The present invention is a chair having an adjustable, flexible supporting frame which supports a seat frame. In a preferred embodiment of the invention, a bidirectional fabric is stretched over the seat frame to form the seat back and seat bottom surfaces. An arm frame includes arm portions which are coupled at four points to the seat frame. Two of the points form an upper horizontal axis across the seat back, and the other two points form a lower horizontal axis across the front of the seat bottom.
In one form of the invention, the arm frame is supported from below by a support fork assembly. The coupling of the support fork assembly to the arm frame may be varied in a number of ways to provide adjustable flexure to the chair.
In another form of the invention, the arm frame is self-supporting with a ground supporting member as part of a stackable frame.
A better understanding of the features and advantages of the present invention will be obtained by reference to the following detailed description of the invention and accompanying drawings which set forth an illustrative embodiment in which the principles of the invention are utilized.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a simplified schematic representation a chair according to the present invention.
FIG. 2 is a front perspective view of the arm and fork portions of the chair.
FIG. 3 is a front plan view of the fabric pattern for the bidirectional material used to cover the seat frame.
FIG. 4 is a front perspective view of the bidirectional fabric as stretched over the completed seat frame.
FIG. 5 is a front perspective view of the seat frame.
FIG. 6A is a front perspective view of the front section of the seat frame.
FIG. 6B is a sectional diagram showing the detail of section 6B--6B on FIG. 5.
FIG. 7 is an exploded perspective view of the seat frame showing the connecting rod detail from FIG. 5.
FIG. 8 is an exploded perspective view showing additional detail from FIG. 5 of the connection between the top portion and the side portions of the seat frame.
FIG. 9 is an exploded perspective view showing additional detail from FIG. 5 of the connection between the front portion and the side portions of the seat frame.
FIG. 10 is a side perspective view showing the attachment of the fork assembly to the arm portion.
FIG. 11 is a side perspective view showing an alternative attachment of the fork assembly to the arm portion.
FIG. 12A is a front perspective view of an alternative embodiment of the invention.
FIG. 12B is a detailed view of section 12B--12B in FIG. 12A.
FIG. 12C is a perspective view of a hinge connection used in the embodiment of FIG. 12A.
FIG. 13 is a front perspective view of an alternative embodiment of the invention.
FIG. 14 is a perspective view of a portion of the connection of the frame to the seat back.
FIG. 15 is a perspective view of a portion of the connection shown in FIG. 14.
FIG. 16 is a perspective view of a portion of the connection shown in FIG. 14.
DETAILED DESCRIPTION OF THE INVENTION
A chair in accord with the present invention is shown in simplified schematic form in FIG. 1. The chair includes a first frame 10 which is a substantially continuous loop extending symmetrically from a front portion 11 rearward along side portions 12L
REFERENCES:
patent: 2512353 (1950-06-01), Magaldino et al.
patent: 2803291 (1957-08-01), Meyer
patent: 4522444 (1985-06-01), Pollock
patent: 4819986 (1989-04-01), Markus
patent: 4880273 (1989-11-01), Markus
patent: 5308142 (1994-05-01), Forslund, III et al.
patent: 5338094 (1994-08-01), Perry
patent: 6050642 (2000-04-01), Erb
Perry Charles Christopher
Perry Charles Owen
Perry Marc Carroll
Perry Maria Daniela
Perry Patrick Lawrence
Cuomo Peter M.
White Rodney B.
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