Amusement devices – Swing – For plural occupants
Reexamination Certificate
2003-10-28
2004-12-07
Nguyen, K. T. (Department: 3712)
Amusement devices
Swing
For plural occupants
C472S118000, C297S320000
Reexamination Certificate
active
06827650
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a swing, more particularly to a swing with a position adjusting member for adjusting a backrest relative to a seat frame.
2. Description of the Related Art
Referring to
FIGS. 1 and 2
, in a U.S. patent application Ser. No. 10/603,013 filed by the applicant, there is disclosed a swing
1
which includes a vertical support unit
11
, and a seat unit
2
having inverted U-shaped left and right armrest frames
212
connected swingably to a top end of the support unit
11
through suspending rods
12
. The seat unit
2
includes front and rear connecting rods
211
interconnecting lower ends of the left and right armrest frames
212
, a seat frame
221
disposed above the front connecting rod
211
and between the left and right armrest frames
212
, and a backrest frame
222
pivoted to a rear end of the seat frame
221
through a first pivot pin (X) and to one of the left and right armrest frames
212
about a second pivot pin (Y) that is disposed above the first pivot pin (X), a footrest frame
223
pivoted to a front end of the seat frame
221
through a third pivot pin (Z), and an inclination adjusting rod
213
connected pivotally to the footrest frame
223
and a lower end of the backrest frame
222
. A positioning unit
23
includes a sliding member
235
, a guiding member
232
, and a fastener
237
. The guiding member
232
is secured to said one of the armrest frames
212
. The sliding member
235
is fixed to the seat frame
221
, and is mounted slidably on the guiding member
232
. The fastener
237
fastens releasably the sliding member
235
to the guiding member
232
to prevent sliding movement of the sliding member
235
together with the seat frame
221
on the guiding member
232
.
One disadvantage of the aforementioned swing
1
resides in that it is relatively inconvenient for the user to loosen or tighten the fastener
237
relative to the guiding member
232
whenever he/she wishes to adjust the inclination of the backrest frame
222
relative to the seat frame
221
. Moreover, the backrest frame
222
cannot be firmly held in position since the frictional engagement between the fastener
237
and the guiding member
232
is not sufficiently strong.
SUMMARY OF THE INVENTION
The object of this invention is to provide a swing with a position adjusting member that can be conveniently operated for adjusting the position of a backrest relative to a seat frame.
According to the present invention, a swing includes a seat unit and a support unit. The seat unit includes: front and rear connecting rods extending in a longitudinal direction; two spaced apart armrest frames extending in a transverse direction relative to the longitudinal direction, one of the armrest frames having an upper part, and front and rear parts extending downwardly and respectively from two opposite ends of the upper part and connected respectively to the front and rear connecting rods; first and second pivot pins; a seat frame disposed above the front connecting rod between the armrest frames, and including a side part adjacent to said one of the armrest frames and having opposite front and rear ends; a backrest frame disposed rearwardly of the seat frame, and including a side part having a lower end disposed below the seat frame, an upper end opposite to the lower end, and an intermediate portion pivoted to the rear end of the side part of the seat frame through the first pivot pin and to the rear part of said one of the armrest frames through the second pivot pin, which is disposed at an elevation above the first pivot pin and which is parallel to the first pivot pin; and a position adjusting member including a guiding rail that is secured to said one of the armrest frames, that is disposed between the front and rear parts of said one of the armrest frames, and that is formed with a plurality of spaced-apart retaining grooves, a sliding member connected securely to the side part of the seat frame for co-movement therewith and defining a rail passage that permits extension of the guiding rail therethrough so as to be slidable on the guiding rail, and a spring-biased latch that is mounted on the sliding member and that has an engaging end extending into the rail passage in the sliding member and engaging releasably a selected one of the retaining grooves in the guiding rail so as to prevent sliding movement of the sliding member and the seat frame on the guiding rail. The support unit includes an upright support frame having opposite top and bottom ends, and left and right suspending members having upper ends connected swingably to the top end of the support frame, and lower ends connected swingably and respectively to the seat unit.
REFERENCES:
patent: 5951102 (1999-09-01), Poulson et al.
patent: 6419312 (2002-07-01), Flannery et al.
patent: 6582018 (2003-06-01), Tseng
patent: 6585319 (2003-07-01), Tseng
patent: 6715831 (2004-04-01), Tseng
Ladas & Parry LLP
Nguyen K. T.
Taiwan Shin Yeh Enterprise Co., Ltd.
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