U.S. patent application number 09/825203 was filed with the patent office on 2002-01-10 for back of a chair.
Invention is credited to Link, Werner.
Application Number | 20020003371 09/825203 |
Document ID | / |
Family ID | 7648045 |
Filed Date | 2002-01-10 |
United States Patent
Application |
20020003371 |
Kind Code |
A1 |
Link, Werner |
January 10, 2002 |
Back of a chair
Abstract
A back for a chair has a frame, and a material piece which is
held on the frame, the frame being composed of at least two frame
pieces which are connectable with one another.
Inventors: |
Link, Werner; (Messstetten,
DE) |
Correspondence
Address: |
STRIKER, STRIKER & STENBY
103 East Neck Road
Huntington
NY
11743
US
|
Family ID: |
7648045 |
Appl. No.: |
09/825203 |
Filed: |
April 3, 2001 |
Current U.S.
Class: |
297/452.18 |
Current CPC
Class: |
A47C 7/282 20130101;
A47C 31/02 20130101; A47C 7/40 20130101 |
Class at
Publication: |
297/452.18 |
International
Class: |
A47C 007/02 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 6, 2000 |
DE |
100 32 928.4 |
Claims
What is claimed as new and desired to be protected by Letters
Patent is set forth in the appended claims.
1. A back for a chair, comprising a frame; a material piece which
is held on the frame, said frame being composed of at least two
frame pieces which are connectable with one another.
2. A back for a chair as defined in claim 1; and further comprising
at least one connecting element which connects said frame pieces
with one another.
3. A back for a chair as defined in claim 1; and further comprising
at least one plug connection which connects said frame pieces with
one another.
4. A back for a chair as defined in claim 1; and further comprising
at least one plug connection and at least one connection piece
which connect said frame pieces with one another.
5. A back for a chair as defined in claim 1, wherein said frame
pieces are composed of a metal profile.
6. A back for a chair as defined in claim 1, wherein said frame
pieces are composed of a synthetic plastic profile.
7. A back for a chair as defined in claim 1, wherein said frame
pieces have a substantially circular cross-section.
8. A back for a chair as defined in claim 1, wherein said material
piece has a periphery provided with a tube-shaped pocket with an
opening.
9. A back for a chair as defined in claim 1, wherein said material
piece is composed of an elastic material.
10. A back for a chair as defined in claim 1, wherein said material
piece is composed of a knitted net.
11. A back for a chair as defined in claim 1, wherein said material
piece is composed of a woven net.
12. A back for a chair as defined in claim 1, wherein said material
piece is composed of synthetic plastic.
13. A back for a chair as defined in claim 1, wherein said material
piece is composed of synthetic fibers.
14. A back for a chair as defined in claim 1, wherein said material
piece is composed of natural fibers.
Description
BACKGROUND OF THE INVENTION
[0001] The present invention relates generally to backs for chairs.
More particularly, it relates to a back which is composed of a
frame with a field enclosed by a material or a material piece.
[0002] Chairs, in particular, tubular chairs such as for example
steel pipe chairs are provided with a frame in the region of the
back. In some embodiments a piece of a material surrounds the back
and is held on the back. The material piece forms the
self-supporting element of the back.
[0003] For mounting of the material piece on the back, various
methods are known. For example, it is possible to make openings on
edges of the material piece and to connect it with the back by
bands which are inserted through the openings. Another possibility
is that, the material piece can be formed as a pocket or can be
provided with tubular pockets on its edges, and then pulled over
the frame of the back, so that the frame is inserted in the pocket
of the material piece.
[0004] In all proposed solutions there is a problem that the frame
and the material piece are produced separately and thereafter must
be connected in a simple manner. The connection moreover must be
designed so that, the material piece is held reliably on the frame
and does not slide. Furthermore, it is desirable that the material
piece can be again removed from the frame later on, after the
assembly of the chair, in particular the back of the chair. This is
desirable for example to exchange a worn material piece for a new
material piece.
SUMMARY OF THE INVENTION
[0005] Accordingly, it is an object of the present invention to
provide a back of a chair, which avoids the disadvantages of the
prior art.
[0006] More particularly, it is an object of the present invention
to provide a back of a chair, which is composed of a frame and a
material piece which is held with a frame, and which is formed so
that the material piece can be connected in a simple manner with
the frame, is held reliably on the frame in its position, and then
subsequently can be again released from the frame, for example for
replacing with a new material piece.
[0007] In keeping with these objects and with others which will
become apparent hereinafter, one feature of present invention
resides, briefly stated, in a back of chair, which is composed of a
frame and a material piece held by the frame, wherein in accordance
with the present invention, the frame is composed of at least two
frame pieces which are connectable with one another.
[0008] In the inventive back of a chair, the frame is assembled of
two frame pieces or two frame halves. The material piece which is
supported on the back has for example a circumferential tube-shaped
pocket, which preferably is provided with openings at its lower
region. The both frame pieces are inserted through the openings in
the tube-shaped pocket of the material piece and then connected
with one another. The connection of the both frame pieces with one
another and/or to the remaining chair can be performed for example
via a separate connection piece, through plug connections and the
like. When the material piece is stretchable, its size can be
designed so that, it applies a pressure on the both frame pieces in
the assembled condition on the back and the frame pieces are
reliably held with one another. In this case, it suffices to join
the frame pieces in form of a plug connection.
[0009] The material piece of the back can be composed of different
materials, such as for example synthetic plastic, cotton and the
like. Moreover, it can be performed by different processes, such as
for example knitting, weaving, etc. It is especially advantageous
for the use with the inventive frame to provide a material piece in
form of a knitted mesh.
[0010] The novel features which are considered as characteristic
for the present invention are set forth in particular in the
appended claims. The invention itself, however, both as to its
construction and its method of operation, together with additional
objects and advantages thereof, will be best understood from the
following description of specific embodiments when read in
connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is a view showing a frame of a back for a chair, in
accordance with the present invention; and
[0012] FIG. 2 is a view showing a material piece in form of a mesh
for the use with a frame in accordance with the present invention
shown in FIG. 1.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0013] A frame of a back for a chair in accordance with the present
invention is shown as an example in FIG. 1. The frame 10 has two
frame pieces, namely a left frame piece 12 and a right frame piece
14. The frame pieces for a user are inserted into the material
piece which they held, for example the material piece shown in FIG.
2 as will be described hereinbelow, are connected with one another
at the connecting locations 16 and 18.
[0014] The connection of the both frame pieces 12 and 14 can be
performed in different ways. In the shown embodiment the connection
at the upper connection location 16 is performed as a purely plug
connection. A pin 20 is provided in the frame piece 12 and is
inserted into the corresponding opening 22 provided in the other
frame piece 14. The connection at the lower connecting point 18 is
also formed as a plug connection piece. Here two pins 24 engage in
two corresponding openings 26. This connection is secured
additionally by a connecting piece 28 which is connected with both
frame pieces 12 and 14, for example by screws.
[0015] The frame pieces 12 and 14 can different profiles and forms.
It is important that a frame must be formed which is comfortable
for a user, has a fine shape, and is stable. Preferably, both frame
pieces 12 and 14 have an approximately oval cross-section. The
frame pieces 12 and 14 can be produced of various materials, such
as for example metal or synthetic plastic.
[0016] FIG. 2 shows one embodiment of a material piece 40, which
can be used advantageously with the embodiment of the frame shown
in FIG. 2. It is composed of a central part 42 which is supported
on the back and formed as a net, and an edge region which is formed
as a tube-shaped pocket 44. The frame pieces 12 and 14 must be
inserted into the pin-shaped edge region 44, before they are
connected with one another. The shape and dimensions of the pocket
must therefore be adapted to the corresponding shape and dimension
of the frame pieces.
[0017] The material piece can be composed of various materials,
such as synthetic plastic, synthetic fibers or natural fibers. It
can be produced with various manufacturing processes, such as for
example knitting or weaving. If the material of the material piece
is an elastic material, then the material piece in addition serves
for compressing the frame parts 12 and 14 in the assembled
condition and holding them reliably together.
[0018] When the back of the chair is designed in accordance with
the present invention, with the frame of the back and the material
piece which forms the supporting region for the back, the parts can
be connected with one another in a simple and elegant way, fast and
reliable, and so that they can be disconnected later on when
needed.
[0019] It will be understood that each of the elements described
above, or two or more together, may also find a useful application
in other types of constructions differing from the types described
above.
[0020] While the invention has been illustrated and described as
embodied in back of a chair, it is not intended to be limited to
the details shown, since various modifications and structural
changes may be made without departing in any way from the spirit of
the present invention.
[0021] Without further analysis, the foregoing will so fully reveal
the gist of the present invention that others can, by applying
current knowledge, readily adapt it for various applications
without omitting features that, from the standpoint of prior art,
fairly constitute essential characteristics of the generic or
specific aspects of this invention.
* * * * *