Armrest elevator device

Details Armrest elevator device Armrest elevator device

2002-04-15

2003-07-01

Barfield, Anthony D. (Department: 3636)

Chairs and seats

Armrest

Adjustable to multiple use positions relative to bottom or back

Reexamination Certificate

active

06585322

ABSTRACT:

BACKGROUND OF THE INVENTION
The present invention relates to an armrest elevator device. More particularly, the present invention relates to an armrest elevator device which is easily operated.
Referring to
FIG. 1
, a conventional armrest elevator device has an elevator frame
100
having a groove
110
, a panel
200
having an oblong recess
210
, a click block
300
having a side recess
301
, a spring
310
, a flap plate
400
, and a hollow oblong plate
500
. The spring
310
is inserted in the side recess
301
of the click block
300
. The click block
300
, the flap plate
400
and the hollow oblong plate
500
are inserted in the oblong recess
210
of the panel
200
. The panel
200
is inserted in the groove
110
of the elevator frame
100
. Before the panel
200
is inserted in the groove
110
of the elevator frame
100
, the spring
310
, the click block
300
, the flap plate
400
and the hollow oblong plate
500
are often ejected from the oblong recess
210
of the panel
200
.
SUMMARY OF THE INVENTION
An object of the present invention is to provide an armrest elevator device which is easily operated.
Another object of the present invention is to provide an armrest elevator device which has an armrest seat and an elevator plate inserted in the armrest seat first so that other elements can be engaged with the elevator plate later in order to avoid an ejection of the other elements.
Accordingly, an armrest elevator device comprises an armrest seat, an elevator plate, a movable block, a cover plate, a control button, a spring, and a pair of cylinder shafts. The elevator plate has a plurality of pairs of click grooves. The movable block has a lower distal end and a top head having a plurality of circular apertures and a round blind hole to receive the spring. The cover plate has a through hole. The control button has a center recess and a pair of columns. The armrest seat has a pair of rail sets, an oblong hole, an elongated groove communicating with the oblong hole, a pair of oblong apertures communicating with the elongated groove, a plurality of oblong recesses, and a plurality of hollow posts. Each of the hollow posts has a round aperture. The elevator plate is inserted in the armrest seat along the rail sets. One of the pairs of the click grooves of the elevator plate matches the oblong apertures of the armrest seat. The movable block is inserted in the elongated groove of the armrest seat. Each of the cylinder shafts is inserted in the corresponding oblong aperture of the armrest seat. The cover plate engages with the oblong hole of the armrest seat. The top head of the movable block is inserted through the through hole of the cover plate and inserted in the center recess of the control button.


REFERENCES:
patent: 6062647 (2000-05-01), Mei
patent: 6394553 (2002-05-01), McAllister et al.
patent: 6398309 (2002-06-01), Chen

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