U.S. patent application number 12/506306 was filed with the patent office on 2011-01-27 for chair capable of reduced transportation volume and rapid assembly.
Invention is credited to Toung-Chun Pan.
Application Number | 20110018321 12/506306 |
Document ID | / |
Family ID | 43496624 |
Filed Date | 2011-01-27 |
United States Patent
Application |
20110018321 |
Kind Code |
A1 |
Pan; Toung-Chun |
January 27, 2011 |
Chair Capable of Reduced Transportation Volume and Rapid
Assembly
Abstract
A chair capable of a reduced transportation volume and rapid
assembly includes a seat cushion fixing frame and a backrest
supporting frame as separate components. The seat cushion fixing
frame has an end coupled with an upside-down square U-shaped
element bilaterally provided with downwardly extending sections,
each section concavely provided with an oblique notch. The backrest
supporting frame has an end corresponding in position to the seat
cushion fixing frame and penetrated by a fixedly provided bar for
being received in the oblique notches of the upside-down square
U-shaped element during assembly. A resilient assembly is assembled
to a bottom portion of a slot formed in a horizontal section of the
backrest supporting frame. The two frames and the resilient
assembly can be assembled rapidly without using tools. The seat
cushion fixing frame and the backrest supporting frame are
detachable from each other for compact packaging, thus effectively
reducing transportation and production costs thereof.
Inventors: |
Pan; Toung-Chun; (Tainan
City, TW) |
Correspondence
Address: |
KAMRATH & ASSOCIATES P.A.
4825 OLSON MEMORIAL HIGHWAY, SUITE 245
GOLDEN VALLEY
MN
55422
US
|
Family ID: |
43496624 |
Appl. No.: |
12/506306 |
Filed: |
July 21, 2009 |
Current U.S.
Class: |
297/285 |
Current CPC
Class: |
A47C 4/02 20130101; A47C
4/028 20130101 |
Class at
Publication: |
297/285 |
International
Class: |
A47C 3/00 20060101
A47C003/00; A47C 7/00 20060101 A47C007/00 |
Claims
1. A chair capable of a reduced transportation volume and rapid
assembly, comprising a seat cushion fixing frame and a backrest
supporting frame which are fabricated as separate components, the
chair being characterized in that: the seat cushion fixing frame
has an end coupled with an upside-down square U-shaped element
bilaterally provided with downwardly extending sections, each said
section being concavely provided with a notch; the backrest
supporting frame has an end corresponding in position to the seat
cushion fixing frame and penetrated by and fixedly provided with a
bar to be received in the notches of the upside-down square
U-shaped element of the seat cushion fixing frame during assembly;
and a resilient assembly is assembled to a bottom portion of a slot
provided penetratingly at a predetermined position of a horizontal
section of the backrest supporting frame; wherein the seat cushion
fixing frame, the backrest supporting frame, and the resilient
assembly can be assembled rapidly without using tools, and the seat
cushion fixing frame and the backrest supporting frame are
detachable from each other for packaging so as to effectively
reduce package volumes thereof, to facilitate stacking during
transportation, and to lower transportation costs.
2. The chair of claim 1, wherein each said notch is concavely and
obliquely provided at a corresponding one of the downwardly
extending sections bilaterally provided at the upside-down square
U-shaped element at the end of the seat cushion fixing frame.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Technical Field
[0002] The present invention relates to a chair capable of a
reduced transportation volume and rapid assembly, wherein a seat
cushion fixing frame and a backrest supporting frame of the chair
can be assembled together and securely positioned relative to each
other by a simple fastening operation without using tools, and
wherein a resilient assembly corresponding in position to an end of
the backrest supporting frame is coupled threadingly with the seat
cushion fixing frame. The seat cushion fixing frame and the
backrest supporting frame are fabricated as separate elements and
are detachable from each other for packaging so as to reduce the
overall package volume, to facilitate stacking during
transportation, and to effectively lower transportation and
production costs.
[0003] 2. Description of Related Art
[0004] Referring to FIG. 1 and FIG. 2, a commercially available
chair assembly typically includes a seat cushion 10, a chair leg
unit (not shown), a backrest 30, and left and right armrests (not
shown). As shown in FIG. 1, the seat cushion 10 is coupled to the
backrest 30 by means of a fixing frame 20 fastened threadingly to a
bottom portion of the seat cushion 10 and a supporting frame 40
fastened threadingly to a rear side of the backrest 30. The fixing
frame 20 bearing the seat cushion 10 and the supporting frame 40
holding up the backrest 30 are soldered together at overlapping
sections thereof so as to form a one-piece unit, as shown in FIGS.
1 and 2. When the seat cushion fixing frame 20 and the backrest
supporting frame 40 soldered together as an individual finished
component are packaged for shipment, a large package volume and
consequently high transportation costs will occur as the two frames
are not detachable from each other.
BRIEF SUMMARY OF THE INVENTION
[0005] In view of the inconvenience of the seat cushion fixing
frame and the backrest supporting frame of the conventional chair
in terms of fabrication, packaging, and transportation, the present
invention provides an improvement in which a seat cushion fixing
frame and a backrest supporting frame are fabricated as separate
components detachable from each other for packaging so as to
effectively reduce package volumes thereof, to facilitate stacking
during transportation, and to lower transportation costs, and in
which the seat cushion fixing frame and the backrest supporting
frame are assembled together and securely positioned relative to
each other by a simple fastening operation.
[0006] A primary objective of the present invention is to provide a
chair including a seat cushion fixing frame and a backrest
supporting frame which are fabricated as separate components.
Therein, the seat cushion fixing frame has an end coupled with an
upside-down square U-shaped element bilaterally provided with
downwardly extending sections, each section concavely provided with
an oblique notch. The backrest supporting frame has an end which
corresponds in position to the seat cushion fixing frame and is
penetrated by and fixedly provided with a bar to be received in the
oblique notches of the upside-down square U-shaped element of the
seat cushion fixing frame during assembly. In addition, a resilient
assembly is assembled to a bottom portion of a slot provided
penetratingly at a predetermined position of a horizontal section
of the backrest supporting frame. The seat cushion fixing frame,
the backrest supporting frame, and the resilient assembly can be
assembled rapidly without using tools. Furthermore, the seat
cushion fixing frame and the backrest supporting frame are
detachable from each other for packaging so as to effectively
reduce package volumes thereof, to facilitate stacking during
transportation, and to lower transportation costs.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
[0007] The invention as well as a preferred mode of use, further
objectives, and advantages thereof will be best understood by
referring to the following detailed description of an illustrative
embodiment in conjunction with the accompanying drawings,
wherein:
[0008] FIG. 1 is a side view of a conventional chair assembly
including a seat cushion fixing frame and a backrest supporting
frame;
[0009] FIG. 2 is a perspective view of the conventional chair
assembly depicted in FIG. 1;
[0010] FIG. 3 is a side view of a seat cushion fixing frame, a
backrest supporting frame, and a resilient assembly according to
the present invention;
[0011] FIG. 4 is an exploded view of the seat cushion fixing frame,
the backrest supporting frame, and the resilient assembly according
to the present invention; and
[0012] FIG. 5 is an exploded perspective view of the seat cushion
fixing frame, the backrest supporting frame, and the resilient
assembly according to the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0013] Referring to FIG. 4 and FIG. 5, a chair capable of a reduced
transportation volume and rapid assembly according to the present
invention includes a seat cushion fixing frame 1 and a backrest
supporting frame 2 which are fabricated as separate components.
[0014] The seat cushion fixing seat 1 has a bottom portion provided
with a pneumatic lifting assembly 11 corresponding in position to
the center of gravity of the seat cushion fixing frame 1. (The
pneumatic lifting assembly 11 is not a technical feature of the
present invention and therefore is not described in detailed
herein.) The seat cushion fixing seat 1 further has an end coupled
with an upside-down square U-shaped element 12 bilaterally provided
with downwardly extending sections, wherein each section is
concavely provided with an oblique notch 121.
[0015] The backrest supporting frame 2 has an end which corresponds
in position to the seat cushion fixing frame 1 and is penetrated by
and fixedly provided with a bar 21 to be received in the oblique
notches 121 of the upside-down square U-shaped element 12 of the
seat cushion fixing frame 1 during assembly, as shown in FIG.
3.
[0016] In addition, a slot 22 is provided penetratingly at a
predetermined position of a horizontal section of the backrest
supporting frame 2. A resilient assembly 3 is assembled to a bottom
portion of the slot 22. The resilient assembly 3 includes an upper
connecting element 31, a resilient element 32, a washer 33, and a
lower connecting element 34, as shown in FIG. 4.
[0017] FIG. 5 illustrates how the seat cushion fixing frame 1, the
backrest supporting frame 2, and the resilient assembly 3 are
assembled together. To begin with, the bar 21 fixedly provided at
the end of the backrest supporting frame 2 is put into the oblique
notches 121 of the upside-down square U-shaped element 12 of the
seat cushion fixing frame 1, as shown in FIG. 3. Then, the
resilient assembly 3 is placed against the bottom portion of the
slot 22 provided penetratingly in the horizontal section of the
backrest supporting frame 2. A screw 35 is passed sequentially
through a hole 13 formed in the seat cushion fixing frame 1 and
corresponding in position to the slot 22 formed in the horizontal
section of the backrest supporting frame 2 and a central portion of
the resilient assembly 3, before the screw 35 is fastened with the
lower connecting element 34. Thus, the seat cushion fixing frame 1,
the backrest supporting frame 2, and the resilient assembly 3 are
rapidly assembled into a one-piece unit without using any
tools.
[0018] Referring to FIG. 4, when the seat cushion fixing frame 1,
the backrest supporting frame 2, and the resilient assembly 3 are
to be packaged for shipment, the seat cushion fixing frame 1 and
the backrest supporting frame 2 are detachable from each other so
as to be packaged separately in small volumes, thus allowing the
various components to be stacked up during transportation to lower
transportation costs.
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