Chairs and seats – Movable bottom – Independently movable resilient bottom sections
Reexamination Certificate
2001-06-06
2002-07-23
Cranmer, Laurie K. (Department: 3636)
Chairs and seats
Movable bottom
Independently movable resilient bottom sections
C297S284110, C297S452210
Reexamination Certificate
active
06422650
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a seat pad adjusting structure of a chair, and more particularly to a seat pad adjusting structure satisfying the requirement of the ergonomic design.
2. Description of the Related Art
A conventional chair in accordance with the prior art shown in
FIG. 1
comprises a seat pad and a backrest
52
. When the backrest
52
is adjusted to have an inclined angle so as to fit the user's requirement, the seat pad
50
is also moved with the backrest
52
to have an inclined angle, so that the front side
51
of the seat pad
50
is lifted synchronously. However, the inner side of the user's leg is compressed by the inclined front side
51
of the seat pad
50
, thereby easily causing uncomfortable sensation to the user during long-term utilization, and thereby easily poorly affecting the blood circulation of the user.
SUMMARY OF THE INVENTION
The present invention has arisen to mitigate and/or obviate the disadvantage of the conventional chair.
The primary objective of the present invention is to provide a seat pad adjusting structure of a chair satisfying the requirement of the ergonomic design.
Another objective of the present invention is to provide a seat pad adjusting structure of a chair, wherein the manner of action of the seat pad may be adapted to satisfy the requirement of the optimal ergonomic design, thereby providing a comfortable sensation to the user.
A further objective of the present invention is to provide a seat pad adjusting structure of a chair, wherein the front side of the seat pad can be maintained at a horizontal state even when the seat pad is disposed at an inclined manner, so that the user's leg can be maintained at the horizontal state without inclination, thereby satisfying the requirement of an ergonomic design, so that the user may feel comfortable when the seat pad is disposed at an inclined manner.
In accordance with the present invention, there is provided a seat pad adjusting structure of a chair, comprising:
a base, having a first side formed with an oblique catch extending downward in an inclined manner, and a second side provided with a backrest connecting bracket;
a bottom plate, mounted on the base and including a base plate secured on the base, an elongated hollow flexible member having a first side formed on one side of the base plate, a swingable flap formed on a second side of the flexible member and located above the oblique catch of the base, and an elongated elastic pad mounted in the flexible member; and
a seat pad, mounted on the base plate.
Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
REFERENCES:
patent: 4498702 (1985-02-01), Raftery
patent: 4775185 (1988-10-01), Scholin et al.
patent: 5716099 (1998-02-01), McDiarmid
patent: 5904397 (1999-05-01), Fismen
patent: 2584587 (1987-01-01), None
patent: 0075842 (1984-04-01), None
patent: 0013838 (1988-01-01), None
Connolly Bove & Lodge & Hutz LLP
Cranmer Laurie K.
The e chair company
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