U.S. patent number 3,764,801 [Application Number 05/233,497] was granted by the patent office on 1973-10-09 for knock-down kit for forming lamp shades.
Invention is credited to Walter Mainieks.
United States Patent |
3,764,801 |
Mainieks |
October 9, 1973 |
KNOCK-DOWN KIT FOR FORMING LAMP SHADES
Abstract
A knock-down kit for forming a lamp shade, a waste-basket and
other similar types of articles. The knock-down kit includes as its
principal elements a side wall member and a pair of hoop members
which are formed with a U-shaped channel for receiving therein the
upper and lower edges, respectively, of the side wall member. The
hoop members include locking means within the U-shaped channel
which, when the upper and lower edges of the side wall member are
inserted within the U-shaped channel, lockingly affix the hoop
members to the side wall member. In the case of a lamp shade, the
kit further includes a spider member having spider arms, the ends
of which are secured to the hoop member affixed to the upper edge
of the side wall member, to complete the construction of the lamp
shade. In the case of a wastebasket or the like, one of the hoop
members is provided with a center wall which, when the hoop member
is affixed to the lower edge of the side wall member, provides a
closed bottom on the side wall member, hence forming a
wastebasket.
Inventors: |
Mainieks; Walter (Chicago,
IL) |
Family
ID: |
22877491 |
Appl.
No.: |
05/233,497 |
Filed: |
March 10, 1972 |
Current U.S.
Class: |
362/352;
362/358 |
Current CPC
Class: |
F21V
1/06 (20130101) |
Current International
Class: |
F21V
1/00 (20060101); F21V 1/06 (20060101); F21v
001/00 () |
Field of
Search: |
;240/18R,18A,18D
;220/6R,76 ;229/4.5 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Matthews; Samuel S.
Assistant Examiner: Adams, Jr.; Russell E.
Claims
Now that the invention has been described, what is claimed as new
and desired to be secured by Letters Patent is:
1. A knock-down kit for forming a lamp shade comprising, in
combination: a tubular shade member having upper and lower edges;
and a pair of substantially rigid hoop members having at least an
outer wall, a concentric inner wall and a top section
interconnecting them to form a generally U-shaped channel for
receiving therein respective ones of the upper and lower edges of
said shade member, and a plurality of spaced-apart barb-like
locking means provided on at least one of said outer and inner
walls and extending into said channel; said hoop members being
affixable to said shade member by inserting the upper and lower
edges thereof into the U-shaped channel of the respective ones of
said hoop members, said U-shaped channel and said barb-like locking
means being proportioned such that said barb-like locking means
automatically lockingly engage with said shade member to secure
said hoop member to said shade member.
2. The knock-down kit of claim 1, wherein said shade member has a
plurality of spaced-apart openings about its periphery adjacent the
upper and lower edges thereof, said locking means being formed to
lockingly engage within said openings to secure said hoop members
to said shade member.
3. The knock-down kit of claim 2, wherein said plurality of
openings in said shade member comprise a plurality of spaced-apart
elongated slots extending about the periphery of said shade member
with the longitudinal axis of said slots being generally parallel
with the upper and lower edges thereof.
4. The knock-down kit of claim 1, wherein each of said hoop members
comprises a third concentric wall spaced inwardly of said inner
wall and integrally affixed to said inner wall by means of a
plurality of spaced-apart support flanges, said third concentric
wall providing additional rigidity to said hoop members.
5. The knock-down kit of claim 1, further including a spider member
having a central head portion and a plurality of projecting spider
arms, at least one of said hoop members having means on said inner
wall thereof for receiving therein the ends of said spider arms,
whereby said spider member can be affixed to said hoop member to
form a lamp shade.
6. The knock-down kit of claim 5, wherein said means on said inner
wall comprise a plurality of spaced-apart cavities for receiving
therein the ends of said spider arms.
7. The knock-down kit of claim 4, further including a spider member
having a central head portion and a plurality of projecting spider
arms, at least one of said hoop members having a plurality of
cavities for receiving therein the ends of said spider arms formed
between said inner wall and said third wall, whereby said spider
member can be affixed to said hoop member to form a lamp shade.
8. The knock-down kit of claim 1, further including a decorative
trim strip affixed to said outer wall of at least one of said hoop
members.
9. A lamp shade comprising, in combination: a tubular shade member
having upper and lower edges; and a pair of substantially rigid
hoop members having at least an outer wall, a concentric inner wall
and a top section interconnecting them to form a generally U-shaped
channel for receiving therein respective ones of the upper and
lower edges of said shade member, and a plurality of spaced-apart
barb-like locking means provided on at least one of said outer and
inner walls and extending into said channel; said hoop members
being affixed to said side wall member with the upper and lower
edges inserted into the U-shaped channel of the respective ones of
said hoop members, said U-shaped channel and said barb-like locking
means being proportioned such that said barb-like locking means
automatically lockingly engage with said shade member to secure
said hoop member to said shade member; and a spider member having a
central head portion and a plurality of projecting spider arms, at
least one of said hoop members having means on said inner wall
thereof for receiving therein the ends of said spider arms, whereby
said spider member can be affixed to said hoop member to form said
lamp shade.
10. The lamp shade of claim 9, wherein said shade member has a
plurality of spaced-apart elongated slots extending about its
periphery adjacent the upper and lower edges thereof, the
longitudinal axis of said slots being generally parallel with said
upper and lower edges, said barb-like locking means lockingly
engaging within said slots to secure said hoop members to said
shade member.
Description
This invention relates, in general, to improved lamp shades and, in
particular, to improved collapsible or knock-down lamp shades. More
particularly still, the invention relates to a knock-down kit for
forming lamp shades, wastebaskets and the like.
The majority of the lamp shades presently manufactured are formed
or erected, prior to being shipped. It, therefore, is readily
apparent that these lamp shades consume or require considerable
storage space, particularly in the case of a cylindrical-shaped
lamp shade which does not lend itself to being nested or stacked.
For this reason, a great many lamp shades are fustroconical in
shape so that they can be nested. While lamp shades of the latter
type can be more readily stored and/or shipped, these lamp shades
generally have a decorative trim strip which extends about its
periphery at one or both of the upper and lower edges thereof and,
when nested, in many cases, the lamp shades are damaged as a result
of these trim strips being inadvertently torn or otherwise
damaged.
The fact that lamp shades of the above type require considerable
space for the storage and/or shipment thereof adds substantially to
the shipping costs, hence the cost of the lamp shades. While, as
indicated above, some of these lamp shades can be nested, in many
cases, they cannot be and to ship a single lamp shade across
country is so expensive that, at the present time, it is almost
prohibitive. In particular, the costs involved render it
impractical to sell individual lamp shades on a mail order
basis.
Accordingly, for this as well as many other reasons, numerous
attempts have been made to construct a collapsible or knock-down
lamp shade that can be compactly packaged for ease in storing them,
and more particularly, for reducing the cost of shipping them.
Various ones of these prior collapsible lamp shades are disclosed
in, for example, U.S. Pat. No. 3,557,362 and U.S. Pat. No.
3,435,205. At the present time, collapsible lamp shades have not
been generally acceptable to the industry, or to the purchasers
thereof, for various different reasons. One of the principal
reasons is the difficulty of assembling or constructing the lamp
shades. While many of these collapsible lamp shades are assembled
before being sold, in the majority of the cases, the lamp shades
ultimately are assembled by the purchaser, usually a housewife.
Accordingly, in order to stimulate the acceptance and the purchase
of collapsible lamp shades, the latter must be of a construction
such that the housewife can quickly and easily assemble them.
While the present invention is particularly directed to providing a
collapsible or knock-down lamp shade, the concept of the invention
is such that a knock-down kit can be provided for forming a lamp
shade, a wastebasket and other similar types of articles. More
particularly, the knock-down kit includes as its principal elements
a side wall member and a pair of hoop members which are formed with
a U-shaped channel for receiving therein the upper and lower edges,
respectively, of the side wall member. The hoop members include
locking means within the U-shaped channel which, when the upper and
lower edges of the side wall member are inserted within the
U-shaped channel, lockingly affix the hoop members to the side wall
member.
In the case of a lamp shade, the kit further includes a spider
member having spider arms, the ends of which are secured to the
hoop member affixed to the upper edge of the side wall member, to
complete the construction of the lamp shade. In the case of a
wastebasket or the like, one of the hoop members is provided with a
center wall which, when the hoop member is affixed to the lower
edge of the side wall member, provides a closed bottom on the side
wall member, hence forming a wastebasket.
Accordingly, an object of the present invention is to provide an
improved lamp shade and, more particularly, an improved collapsible
or knock-down lamp shade.
Another object is to provide an improved collapsible or knock-down
lamp shade which can be easily and quickly assembled by, for
example, a housewife.
Still another object is to provide an improved collapsible or
knock-down wastebasket which can be easily and quickly assembled
by, for example, a housewife.
A still further object is to provide a knock-down kit for forming a
lamp shade, wastebasket or the like.
The above and other objects, features and advantages of the present
invention will become more apparent from the consideration of the
following detailed description when taken in conjunction with the
accompanying drawings, in which:
FIG. 1 is a perspective view of a lamp shade constructed from a
collapsible or knock-down kit, in accordance with the present
invention;
FIG. 2 is a side plan view, partially sectionalized, of a
wastebasket;
FIG. 3 is a partial sectional view generally illustrating the
manner in which the hoop members are lockingly affixed to the upper
and lower edges of the side wall member;
FIG. 4 is a top plan view of the spider member;
FIG. 5 is a side plan view of the spider member of FIG. 4;
FIG. 6 is a partial side view of the side wall member, generally
illustrating the elongated slots which are preferably formed
therein adjacent the upper and lower edges thereof;
FIG. 7 is a partial bottom plan view of one of the hoop
members;
FIG. 8 is a sectional view taken along lines 8--8 of FIG. 7.
FIG. 9 is a view generally illustrating the manner in which the
collapsible or knock-down lamp shade is packaged for shipment or
storage; and
FIG. 10 is a partial side plan view, partially sectionalized,
illustrating the manner in which the hoop members can be used in
conjunction with upright braces to construct a soft shade.
Similar reference characters refer to similar parts throughout the
several views of the drawings.
Referring now to the drawings, in FIG. 1 there is illustrated a
lamp shade 10 constructed in accordance with the present invention;
by assembling the hoop members 12 and 13 with the upper and lower
edges, respectively, of a side wall member 11, and by affixing a
spider 15 to the top hoop member 12. The side wall member 11, in
the case of the lamp shade, forms the shade member which can be a
conventional hardback shade. More particularly, the side wall or
shade member 11 can be fustroconical in shape, as illustrated, or
any one of numerous other shapes such as cylindrical, rectangular,
or ovular. Furthermore, the side wall or shade member 11 can be
formed of any suitable flexible, semi-rigid materials, such as,
paper, parchment, plastic or stiffened fabric material, as well as
material such as the above having a fabric material adhered
thereto, as illustrated in FIG. 3, where a fabric material 17 is
shown affixed to a heavy weight paper 16. In this respect, the side
wall or shade member 11 can be of virtually any material which is
sufficiently flexible so that it may be shipped and stored in the
knock-down condition generally illustrated in FIG. 9.
The hoop members 12 and 13 can be of any suitable substantially
rigid material such as metal, wood or plastic. Preferably and
advantageously, however, the hoop members 12 and 13 are molded of
plastic. Such hoop members can be easily fabricated and
furthermore, are light-weight, so that they do not add
substantially to the weight of the lamp shade. In the illustrated
embodiment, the hoop members 12 and 13 are annular in shape and, in
the case of a fustroconical lamp shade, the hoop member 12 is of a
smaller diameter than the hoop member 13. In the case of a
cylindrical-shaped lamp shade, obviously the hoop members 12 and 13
would be of the same diameter. Furthermore, it will be appreciated
that the hoop members 12 and 13 can be other than annular shaped,
such as, for example, rectangular shaped or ovular shaped.
The hoop members 12 and 13 are of a like construction and each has
a U-shaped channel 23 formed by an outer wall 20, a concentric
inner wall 21 and a top wall 22 interconnecting them. Interiorly of
the inner wall 21, each of these hoop members 12 and 13 also and
preferably have a support wall 24 which is concentric with the
inner wall 21. This support wall 24 is integrally fixed to the
inner wall 21 by means of a number of radially spaced spacer
flanges 25 and the top wall 22. As can be best seen in FIG. 3, the
top wall 22 preferably and advantageously tapers downwardly and
inwardly from the outer wall 20 to the support wall 24, to add to
the aesthetic or decorative appearance of the hoop members 12 and
13. This support wall 24 functions primarily to add additional
rigidity to the hoop members 12 and 13.
Locking means in the form of a number of radially spaced barbs 26
are formed integrally with the outer wall 20 to extend into the
U-shaped channel 23, as can be best seen in FIGS. 3 and 8. While,
as illustrated, these barbs 26 are provided on the outer wall 20,
they could as well be provided on the inner wall 21 or,
alternatively, on both the outer and inner walls 20 and 21. These
barbs 26, as explained more fully below, are proportioned to
lockingly engage with the upper and lower edges of the side wall or
shade member 11 to lockingly affix the hoop members 12 and 13 to
the side wall or shade member 11 when the edges thereof are
inserted within the U-shaped channel 23. A number of radially
spaced connector cavities 27 are integrally formed with the inner
wall 21, preferably between the inner wall 21 and the support wall
24. These connector cavities 27 function in a dual capacity, in
that they are adapted to receive and to retain therein the ends of
the spider arms 31 of the spider 15 to affix the spider 15 to the
upper hoop member 12 to form the lamp shade 10. These connector
cavities 27 also are adapted to receive the ends of upright braces
33 used in conjunction with a soft shade, that is, one having a
soft fabric side wall member 11, as explained more fully below.
These connector cavities 21 can be of various shapes and preferably
are fustroconical shaped cavities so that they are adapted to
receive and frictionally retain therein spider arms and upright
braces of various diameters.
The outer peripheral surface of the outer wall 20 preferably is a
flat vertical surface so that a decorative trim 28 can be
adhesively or otherwise affixed to it, as illustrated in FIG. 3.
Alternatively, for purposes of decorating the outer wall 20, the
latter can be painted or otherwise decorated, to add to the
appearance of the hoop members 12 and 13.
The spider 15 is shown in FIGS. 4 and 5, and it can be seen that it
includes a central portion 30 having an aperture therein for
receiving therethrough the threaded stud on the lamp, for affixing
the lamp shade 10 to the lamp. A number of spider arms 31 (three as
illustrated) are affixed to the central portion 30, in radially
spaced relationship. These spider arms 31 can be fixedly secured to
the central portion 30, however, preferably the one end thereof is
affixed to the central portion 30 so that the spider arms 31 can be
rotated to permit them to be shipped flat, as generally illustrated
by the phantom lines in FIG. 4, and thereafter rotated into
position for assembly. These spiders 15 generally include at least
three spider arms 31, however, in some applications the spiders may
have four or more spider arms. For this reason, the hoop members 12
and 13 are provided with sufficient connector cavities 27 so that
any of the spiders presently commonly used with lamp shades can be
used.
In assembling the lamp shade 10, the hoop members 12 and 13 are
fixedly secured to the side wall or shade member 11, by inserting
the upper and lower edges thereof into the U-shaped channels 23 in
the hoop members. In doing so, the locking barbs 26 disposed within
the U-shaped channel 23 are frictionally engaged with the
peripheral surface of the side wall or shade member 11. In most
cases, particularly when the side wall or shade member 11 has a
fabric 17 adhered thereto, the locking barbs 26 frictionally and
lockingly engage with the side wall or shade member 11 such that
the hoop members 12 and 13 are lockingly secured thereto.
Preferably and advantageously, a number of openings in the form of
elongated slots 18 are provided about the periphery of the side
wall or shade member 11, adjacent both its upper and lower edges,
for receiving therein the locking barbs 26, as generally
illustrated in FIG. 3. By providing elongated slots 18, substantial
leeway is given in affixing the hoop members 12 and 13 to the side
wall or shade member 11 to insure engagement of the locking barbs
26 within the elongated locking slots 18. Once the locking barbs 26
are lockingly engaged within the elongated locking slots 18, the
hoop members 12 and 13 are lockingly secured to the side wall or
shade member 11 in a fashion such that it is relatively difficult
if not impossible to remove the hoop members 12 and 13 without
damaging the side wall or shade member 11. To complete the assembly
of the lamp shade 10, the ends of the spider arms 31 of the spider
15 are inserted and secured within the appropriate ones of the
connector cavities 27 in the hoop member 12.
As indicated above, a lamp shade 10 of this construction can be
easily and economically shipped in a collapsed or knock-down
condition, within a carton, generally as illustrated in FIG. 9. As
can be there seen, the side wall or shade member 11 is collapsed,
and the hoop members 12 and 13, together with the spider 15 are
disposed within it or atop of it, in a generally flat
rectangular-shaped container or box, which can be easily shipped or
stored. The lamp shade 10 then is thereafter erected or assembled,
generally as in the manner described above, simply by affixing the
hoop members 12 and 13 to the upper and lower edges of the side
wall or shade member 11, and then by affixing the spider 15 to the
hoop member 12. It can therefore be seen that the lamp shade 10 can
be easily and quickly erected, by the purchaser, particularly a
housewife.
Referring now to FIG. 10, the manner in which a number of upright
braces 33 are used in conjunction with the hoop members 12 and 13
to form a so-called soft shade is illustrated. As can be seen, the
hoop members 12 and 13 are supported in spaced apart positions by
four or more upright braces 33 which can be metal rods or the like
having their ends disposed and retained within the connector
cavities 27 in the hoop members 12 and 13. The side wall or shade
member 11, in this case, is formed of a fabric in the shape of a
loop extending completely about the peripheral surface of the hoops
12 and 13, and peripherally about the hoop members 12 and 13, as is
conventionally done. The spider 15 is attached to the upper hoop
member, generally in the manner described above, by inserting the
ends of its spider arms within the connector cavities 27. The hoop
members 12 and 13 therefore can be used to assemble both hardback
and soft shades, if desired.
In FIG. 2, there is illustrated a wastebasket 40 which is
constructed using a pair of hoop members 12a and 13a, in
combination with a side wall member 11a. In this case, the side
wall member 11a, as in the case of the side wall member 11, can be
formed of any suitable flexible, semi-rigid materials. The hoop
member 12a also can be of a construction identical to the hoop
member 12. The hoop member 13, however, is provided with a central
wall surface 41 which is integrally formed therewith or otherwise
affixed to the hoop member 13a. This central wall surface 41 forms
a bottom for the side wall member 11a, when the hoop member 13a is
affixed thereto, to form a wastebasket or the like. In this case
also, it can be seen that the hoop members 12a and 13a and the side
wall member 11a can be packaged for storage and/or shipment, in a
knock-down configuration, in the same fashion as the lamp shade
10.
It will thus be seen that the objects set forth above, among those
made apparent from the preceding description are efficiently
attained and certain changes may be made in the above product.
Accordingly, it is intended that all matter contained in the above
description or shown in the accompanying drawings shall be
interpreted as illustrative and not in a limiting sense.
* * * * *