U.S. patent number 3,724,402 [Application Number 05/152,071] was granted by the patent office on 1973-04-03 for webbed panel for chairs.
This patent grant is currently assigned to General Housewares Corp.. Invention is credited to Wallace G. Splettstoeszer, Paul D. Thyberg.
United States Patent |
3,724,402 |
Thyberg , et al. |
April 3, 1973 |
WEBBED PANEL FOR CHAIRS
Abstract
A panel for use as the seat or back of a lawn chair or the like
wherein strands of webbing extend diagonally between portions of a
rectangular peripheral frame to provide a flexible surface, the
webbing herein comprising closed loops of a uniform and
predetermined size which are interwoven with each other and secured
to the frame without independent attachment means.
Inventors: |
Thyberg; Paul D. (St. Paul,
MN), Splettstoeszer; Wallace G. (Watertown, MN) |
Assignee: |
General Housewares Corp. (New
York, NY)
|
Family
ID: |
22541402 |
Appl.
No.: |
05/152,071 |
Filed: |
June 11, 1971 |
Current U.S.
Class: |
160/371;
160/DIG.15; 297/452.64 |
Current CPC
Class: |
A47C
7/22 (20130101); Y10S 160/15 (20130101) |
Current International
Class: |
A47C
7/02 (20060101); A47C 7/22 (20060101); A47g
005/00 (); E06b 003/30 () |
Field of
Search: |
;160/327,328,329,371,DIG.15,353 ;182/138,139 ;272/65,70.1 ;273/26A
;297/452,445 ;5/186R,186B,190,191 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Caun; Peter M.
Claims
Having now therefore fully illustrated and described our invention,
what we claim to be new and desire to protect by United States
Letters Patent is:
1. In a panel presenting a flexible surface for use as a chair seat
or the like,
a. a substantially square rigid unitary frame formed of metal
tubing,
b. a plurality of closed loops of the same size and of resilient
flexible material each being secured around diagonally opposing
corners of the frame and being spread at varying distances from the
corners into a rectangular shape with the reaches thereof extending
diagonally across the frame at a forty-five degree angle to the
sides of the frame,
c. the reaches of the loops being interwoven with each other to
form a flexible surface within the frame, and
d. fastening means acting between each of the loops located most
closely adjacent to a frame corner and said adjacent corner for
securing said loop against removal from the frame and thereby
securing all of the other loops upon the frame.
2. The subject matter of claim 1 wherein said fastening means
comprises a snap fastener on the loop inserted into an aperture in
the frame.
3. The subject matter of claim 1 wherein said fastening means
comprises intercrossing single straps extending between the frame
corners and being interwoven with each other and the loop reaches
which each crosses, and the ends of said straps being connected to
the frame corners.
4. The subject matter of claim 3 wherein the end portions of said
straps are stretched around the frame corners and inserted into
diagonally opposing slots in the frame to form said connection.
Description
BACKGROUND OF THE INVENTION
Patio or lawn furniture is frequently constructed of panels each
having a generally rectangular metal frame with strips of plastic
or fabric webbing interwoven or otherwise extending between
portions of the frame.
In one type of construction a single length of flexible material is
wound around spaced parallel portions of the frame to form a back
or seat rest. In another construction one or more lengths of
material are wound back and forth between frame portions and are
interwoven with each other. Still another commonly used
construction embodies many short straps of webbing material each of
which extends only one span between two frame portions with the
ends thereof suitably locked to the frame.
Each of these types of webbed furniture require a great deal of
labor in the manufacturing process. Moreover, in each case, in the
event that any single span of the webbing between frame portions
should break from wear or damage, it is very difficult to replace
and yet maintain the original appearance of the furniture piece
involved. Where a single length of webbing is used for the whole
panel, when one strand is broken the entire flexible surface
collapses.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a panel for a
webbed type patio chair or the like which has the strength and
durability of conventional panels and yet which may be assembled at
a relatively low cost and repaired quickly and easily by the owner
of the chair without special training.
Another object of the invention is to provide a panel for a webbed
chair wherein the basic web structure comprises a plurality of
webbing members all of which have an identical size and shape and
which retain their original position on the framework by reason of
their intertwining relation without the use of auxiliary locking
means.
Still another object is to provide a chair panel with a webbed
flexible surface and wherein it is unnecessary to weaken the panel
frame by providing multiple webbing retention slots therein.
With the above mentioned and other objects in view the invention
broadly comprises a square or rectangular frame member adapted to
serve as the seat or back member of a lawn chair or chaise lounge
or the like and a plurality of equal sized loops of flexible
resilient material such as plastic stretched over opposing corners
of the frame so that the loops form different rectangular shapes
with the reaches thereof arranged in a diagonal interwoven
manner.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
FIG. 1 is a perspective view of a closed loop of the webbing
material used in the construction.
FIG. 2 is a section through the loop taken on line 2--2 of FIG.
1.
FIG. 3 is a plan view of a square frame with the first loop applied
to its permanent position thereon.
FIG. 4 is similar to FIG. 3 with three additional loops applied
thereto during assembly.
FIG. 5 is a section through a corner of the frame taken on line
5--5 of FIG. 4.
FIG. 6 is similar to FIGS. 3 and 4 with the panel in completely
assembled condition.
FIG. 7 is similar to FIG. 6 but shows a modified form of the
invention.
FIG. 8 is a section through the corner of the frame taken on line
8--8 of FIG. 7.
FIG. 9 is a plan view showing partial assembly of another modified
form of the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now more particularly to the drawing, reference numerals
will be used to denote like parts or structural features in the
different views. While a panel constructed in accordance with the
invention may have various rectangular shapes the assembly may be
more readily explained and understood where the panel is square.
Accordingly, in FIGS. 3 through 6 the numeral 14 denotes a square
frame of tubular metal such as might be used for the seat or back
of a lawn or patio chair. Frame 14 has four equal side bars 15, 16,
17 and 18 connected by rounded corner portions 19, 20, 21 and 22.
While the frame is generally square the opposing side bars such as
16 and 18 or 15 and 17 may be slightly curved out of the plane of
the frame to give the panel a body conforming curvature as is
generally desirable in a chair seat or back.
The webbing providing the flexible surface within the frame 14 is
made up of a plurality of identical loops or belts 24 (FIGS. 1 and
2). These loops are formed of a slightly resilient flexible plastic
material such as vinyl and may be injection molded or extruded and
then cut in sections with the ends welded together to form the
continuous loop. The material is flat in cross section, in the same
manner as conventional webbing, as shown in FIG. 2.
In assembling a panel the first loop 24 is applied to frame 14 as
shown in FIG. 3. This is done by spreading the loop between corners
20 and 22 and then stretching the loop ends downwardly around the
corners and then sliding the loop outwardly along the bars 15 to 18
to the substantially square condition shown with the reach 24a
thereof extending between bars 15 and 16 and parallel reach 24b
thereof extending between bars 17 and 18. On the underside of the
frame reach 24c extends between bars 16 and 17 and reach 24d
extends between bars 15 and 18.
The second loop is denoted at 25. The end portions of this loop are
pulled diagonally of the frame 14 under the reaches 24c and 24d and
are then stretched downwardly around corners 20 and 22 and the loop
is moved outwardly along bars 15 to 18 to the position shown in
FIG. 4 with its reaches 25a and b parallel to and spaced inwardly
from reaches 24a and b and its reaches 25c and d parallel to and
spaced outwardly from reaches 24c and d.
The third loop is denoted at 26. One end portion of this loop is
placed over reach 24d, then threaded under reach 25d, then
stretched downwardly around frame corner 22. The other end portion
is placed over reach 24c, then threaded under reach 25c and
stretched downwardly over frame corner 20 and the loop is moved
outwardly along bars 15 to 18 to the position shown in FIG. 4.
The fourth loop is denoted at 27. One end portion of this loop is
threaded under reach 24d, over reach 25d, under reach 26d and then
stretched downwardly around corner 22 of the frame. The other end
portion is threaded under reach 24c, over reach 25c, under reach
26c and stretched downwardly around corner 20, to the position
shown in FIG. 4. The corner loop 27 is provided with small
fasteners 28 in the end portions 27c and d which are inserted into
apertures 29 (FIG. 5) in the frame corner portions 20 and 22 to
hold loop 27 in position.
Loops 30, 31 and 32 are then respectively interwoven into the panel
and stretched around the corners 19 and 21 to completely fill the
inside of the frame as shown in FIG. 6. The last loop 32 also
carries fasteners 28 which are inserted into apertures in the
corners 19 and 21.
The completed panel shown in FIG. 6 provides an interwoven webbed
section that may be used as a back or a seat in a chair
construction. The panel is quickly assembled and can be readily
repaired by the chair owner should any one of the loops become worn
or damaged.
A significant fact is that each loop when applied to the frame as
shown and described geometrically forms the hypotenuse of four
right angle isosceles triangles, the other legs of which are formed
by the frame bars. Thus while the loops take different rectangular
shapes when applied to the frame, the sum of the reaches in each
loop span an identical distance. Accordingly, all of the loops are
of the same size and may be applied interchangeably.
An alternate form of the invention is shown in FIG. 7. This
utilizes the same basic construction with the diagonally
intercrossing loops such as 24. However, here only six loops are
used rather than seven and single straps are used to connect the
diagonally opposing corners. Strap 40 connects corners 20 and 22
while strap 41 connects corners 19 and 21. These straps are secured
to the frame as shown in FIG. 8. Slots 42 are provided on the
inside surfaces of the rounded frame corners. One end portion 44 of
the strap 41 is inserted into slot 42 in corner 21. The strap is
then interwoven through the various webbing loops and the opposite
end of the strap is stretched around the opposite frame corner 19
and inserted into the slot 42 therein. End portions 44 are retained
in the slots by friction. Strap 40 is applied in the same
manner.
The advantage in utilizing single straps such as 40 and 41 to
finish off the panel is that they achieve a complete interwoven
effect throughout the panel which is not accomplished in the
structure shown in FIG. 6 where the adjacent parallel reaches of
the corner to corner loops must intercross perpendicular reaches on
the same side.
The loop type webbing can also be used on panels that are not
square as exemplified in FIG. 9. Elongated rectangular panels of
this type are frequently used in chaise lounges or cot-type
furniture. In this embodiment the rectangular frame is designated
generally by the numeral 50 and has elongated side bars 51 and 52
connected by end bars 54 and 55 and corners denoted in a clockwise
direction by numerals 56, 57, 58 and 59.
Loop 60 is applied first downwardly over corner 57 leaving reach
60a extending between bars 54 and 52. The loop is then pulled
downwardly and to the left as viewed in FIG. 9 and downwardly
around bar 51 leaving a reach 60b extending from bar 54 to bar 51
and reach 60c extending from bar 50 to bar 51. Then the loop is
pulled from bar 51 downwardly and to the right leaving reaches 60d
and 60e extending between side bars 51 and 52. Then the loop is
pulled from bar 52 downwardly around corner 59 leaving reach 60f
extending between bars 52 and 51, reach 60g extending between bars
52 and 55 and reach 60h extending between bars 51 and 55.
The next loop 61 is applied by one end thereof pulled downwardly
around corner 57 leaving reach 61a extending between bars 52 and
54. Loop 61 is then pulled under reaches 60a and 60d and downwardly
around bar 51 leaving reach 61b extending from bar 54 to bar 51 and
reach 61c extending from bar 52 to bar 51. The loop is then pulled
downwardly and to the right, as viewed in FIG. 9, from bar 51 and
over reaches 60c and 60f and upwardly around bar 52 leaving reaches
61d and 61e extending between side bars 51 and 52. Then loop 61 is
pulled from side bar 52 under reaches 60e and 60h and downwardly
around corner 59 leaving reach 61f extending from bar 52 to bar 51,
reach 61g extending from bar 52 to bar 55 and reach 61h extending
from bar 51 to bar 55.
It will be understood that additional loops are then added in the
manner described being interwoven with the loops previously
installed until the panel is completely filled in. Here as in the
previously described embodiments the corner loops may be fastened
to the frame or the single straps similar to but longer than straps
40 and 41 may be used for strength and to complete the interwoven
pattern.
It will be understood the closed loop webbing construction may be
used with rectangular frames of various lengths. However, it is
found to be most satisfactory where the length dimension of the
frame is substantially even multiples of the frame width.
* * * * *