Chairs and seats – Movable back – Tiltable
Reexamination Certificate
2001-08-17
2002-05-28
Brown, Peter R. (Department: 3636)
Chairs and seats
Movable back
Tiltable
C297S301700
Reexamination Certificate
active
06394550
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a chair adjustment assembly. More particularly, the present invention relates to a chair adjustment assembly which has an adjustment device.
A conventional adjustment device for a chair adjusts an angle of a backrest. However, it is cumbersome to control the conventional adjustment device.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a chair adjustment assembly which has an adjustment device to be operated easily.
Accordingly, a chair adjustment assembly comprises a base seat, a pneumatic mount disposed on the base seat, a connection mount, an L-shaped plate disposed on a bottom of the connection mount, and an adjustment device. The base seat has a U-shaped frame and two lug joints. The connection mount has two arm bars connected to the lug joints. A spindle fastens the arm bars and the lug joints together. The adjustment device has a positioning seat, a connection seat disposed on the positioning seat, a washer, a coiled spring, a first gasket having a first round aperture, a first oblong plate having a first oblong hole and a first circular hole, at least a second gasket having a second round aperture, at least a second oblong plate having a second oblong hole and a second circular hole, a tube, a nut, the connection seat receiving the washer and the coiled spring, the positioning seat having a bottom slot and a round hole, the positioning seat receiving the first gasket, the first oblong plate, the second gasket and the tube, a shaft passing through the connection seat, the washer, the coiled spring, the first gasket, the first oblong plate, the second gasket, the second oblong plate, the tube and the nut, a square plate inserted in the connection seat, and a control handle. The control handle has a connection block having a through hole. The connection seat has an inner interior and a through aperture. The connection block is inserted in the connection seat. A pintle fastens the connection block and the connection seat together through the through aperture of the connection seat and the through hole of the connection block. The U-shaped frame receives the first oblong plate and the second oblong plate. A pin fastens the first oblong plate, the second oblong plate, and the U-shaped frame together.
REFERENCES:
patent: 4636004 (1987-01-01), Neumuller
patent: 5066069 (1991-11-01), DeGelder
patent: 5423595 (1995-06-01), Hancock
patent: 5560682 (1996-10-01), Brown
patent: 5676425 (1997-10-01), Pernicka
patent: 6131998 (2000-10-01), Su
LandOfFree
Chair adjustment assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chair adjustment assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chair adjustment assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2872961