U.S. patent number 3,848,844 [Application Number 05/348,481] was granted by the patent office on 1974-11-19 for adjustable display shelf apparatus.
This patent grant is currently assigned to Visual Designs Mfg. Co.. Invention is credited to Robert R. Barrett.
United States Patent |
3,848,844 |
Barrett |
November 19, 1974 |
ADJUSTABLE DISPLAY SHELF APPARATUS
Abstract
Adjustable display shelf apparatus including vertical support
elements defining at least one external groove opening into an
enlarged lengthwise undercut slot for receiving a mating portion of
a projecting shelf support bracket. The projecting shelf support
bracket may be formed with slots along one edge that define an edge
configuration conforming to the configuration of the undercut slot
thereby allowing the shelf support bracket to be adjustably
supported within the undercut slot. The shelf support brackets may
be infinitely adjustable relative to the vertical support elements
and may be secured in any desired position relative to the support
elements by friction inducing shelf bracket restraint elements.
Inventors: |
Barrett; Robert R. (Houston,
TX) |
Assignee: |
Visual Designs Mfg. Co.
(Houston, TX)
|
Family
ID: |
23368227 |
Appl.
No.: |
05/348,481 |
Filed: |
April 6, 1973 |
Current U.S.
Class: |
248/245; 108/106;
256/59; 211/134; 248/297.21 |
Current CPC
Class: |
A47B
96/1466 (20130101); A47B 57/56 (20130101) |
Current International
Class: |
A47B
57/56 (20060101); A47B 96/00 (20060101); A47B
57/00 (20060101); A47B 96/14 (20060101); A47b
047/00 (); A47g 029/02 () |
Field of
Search: |
;248/245,244,243,246,247,248,235 ;108/106,152,107,108,109
;211/134,148 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
749,531 |
|
Jul 1933 |
|
FR |
|
569,458 |
|
Jul 1958 |
|
BE |
|
Primary Examiner: Foss; J. Franklin
Claims
I claim:
1. A display unit comprising:
vertical support means having opposed spaced shoulder means
defining an elongated groove therebetween and having elongated
chamber means formed therein and being disposed behind said opposed
shoulder means, said vertical support means defining first
generally planar friction surface means;
support bracket means having a support portion for supporting
objects thereon, said support bracket means having a face portion
of a configuration generally corresponding to the cross-sectional
configuration of said elongated groove and said elongated chamber,
said face portion of said bracket means being disposed within said
elongated chamber means and extending through said elongated groove
and being movable along said groove and chamber, said face portion
defining second generally planar friction surface means, said
support bracket means having a transverse latch aperture formed
therein, at least a portion of said aperture intersecting the plane
of said first friction surface means; and
latch pin means being disposed within said transverse aperture of
said bracket means and having cam surface means defined thereon,
said latch pin means being movable relative to said bracket means
between a locked position where said cam surface means engages said
vertical support means and urges said first and second friction
surface means into friction locked engagement and a released
position where said cam surface means is retracted to a position
releasing said frictional engagement between said first and second
friction surfaces.
2. A display unit as recited in claim 1, wherein:
said support bracket means has a latch aperture formed therein;
and
said latch means comprises an elongated pin element having a
generally planar cam surface formed thereon and being disposed in
angular relation to the longitudinal axis of said pin, said cam
surface being disposed in engagement with said first friction
surface of said vertical support means.
3. A display unit as recited in claim 1, wherein:
said latch aperture being formed in substantially normal relation
to said support bracket means; and
said latch means comprises an elongated friction latching pin being
rotatably received within said latch aperture, said elongated pin
having rotary cam surface means formed thereon and being disposed
in eccentric relation to said pin, said cam surface means, upon
rotation of said pin being movable into or away from camming
engagement with said first friction surface of said verticle
support means.
4. A display unit as recited in claim 3, wherein:
said cam surface means comprises circular elements disposed at each
extremity of said pin in eccentric relation to the axis of said
pin.
5. A display unit as recited in claim 4, wherein:
one of said circular elements having drive means formed thereon and
being engaged by a drive element to achieve rotation of said
pin.
6. A display unit as recited in claim 1, wherein:
said face portion of said bracket means has opposed elongated guide
grooves formed therein defining third friction surface means, said
opposed grooves receiving said opposed shoulders of said verticle
support element and said third friction surface means engaging said
second friction surface means.
7. A display unit as recited in claim 1, wherein:
said support element has a plurality of grooves and chambers
extending along the length thereof and receiving a plurality of
said bracket means in locking relation therewith.
8. A display unit as recited in claim 1, wherein:
said support member includes a back wall and facing side walls
defining said chamber and said bracket supports the facing portion
thereof within said chamber short of contact with said back wall
and said side walls of said chamber.
Description
FIELD OF THE INVENTION
This invention is directed generally to display shelf apparatus,
such as might be employed in commercial establishments such as gift
shops, book stores, and any other commercial establishments having
the necessity of displaying merchandise for purchase by consumers.
The invention also relates generally to shelves such as book
shelves and cabinetry shelves that may be employed in private
residences and the like. More specifically, the invention is
directed to the provision of shelf apparatus incorporating easily
and infinitely adjustable mechanisms, thereby providing display
shelves that may be quickly and simply adjusted to suit any
desirable need.
RELATED APPLICATIONS
Applicant has one presently pending application bearing Ser. No.
80,679, filed Oct. 14, 1970 now abandoned, entitled "Display
Container."
BACKGROUND OF THE INVENTION
It has long been necessary to provide display shelves in commercial
establishments and in residential dwellings for the purpose of
displaying or storing merchandise or displaying objects such as
books, figurines and many other items suitable for display.
Regardless whether the shelves are employed for storage or for
displaying fanciful or utilitarian items, and regardless whether
the shelves are employed in a commercial establishment or are
utilized in residential dwellings, it frequently becomes desirable
to adjust the shelves to render the shelving more adaptable to
particular articles or materials to be displayed or stored.
Many different types of shelf adjusting devices have been employed
in the past, but for the most part, it is typical for adjustment
slots to be provided in the shelf bracket support elements of the
shelving apparatus and for shelf brackets to be provided with
projections or other connecting features that facilitate
incremental positioning of the shelves. In this connection
reference may be had to U.S. Pat. Nos. 3,039,727 Engel et al;
3,273,847 Berman; and 3,613,900 Chiu. In some cases infinitely
adjustable shelving has also been provided, such as shown by U.S.
Pat. Nos. 439,636 Buck and 3,203,375 Schroeder. A modular approach
has been contemplated in the past for adjustable shelving
apparatus, but generally the techniques employed in the past have
been generally found deficient as far as infinite adjustability is
concerned.
It is a primary object of the present application, therefore, to
provide novel display or storage shelf apparatus having adjustable
shelves that effectively allow the shelves to be simply and easily
adjusted in any suitable manner.
It is another important object of the present invention to provide
novel display or storage shelf apparatus wherein vertical support
devices may be utilized that facilitate support of any suitable
number of shelves as desired and also facilitate positioning of
shelving as high as deemed appropriate.
Another object of the present invention contemplates the provision
of novel display or storage shelf apparatus incorporating friction
lock mechanisms that facilitate simple and efficient locking of
shelf support brackets in any desirable position relative to the
vertical shelf supports.
It is also an object of the present invention to provide novel
display or storage shelf apparatus that effectively allows
provision of display shelving of any suitable design and facilities
a modular approach to the provision of shelving for display
purposes.
SUMMARY OF THE INVENTION
One suitable embodiment of the present invention may incorporate
vertical support elements that are provided with at least one and
perhaps a plurality of elongated undercut grooves, depending upon
whether the vertical supports are provided to support more than one
shelf or whether the supports are provided in such a manner as to
facilitate assembly of shelving of various modular design. The
vertical support elements may be extruded members, if desired.
Shelf support brackets may be provided for assembly with the
vertical supports in such manner as to support shelving elements in
generally horizontal manner and to facilitate infinite adjustment
of the horizontal shelves. Each of the support brackets may be
provided with a supporting edge configuration, generally
corresponding to the configuration of the undercut slot, thereby
allowing the support bracket to be freely movable within the
elongated slots for adjustment of the position of the shelves. For
the purpose of locking the shelf bracket and the shelves in any
suitable position, locking devices may be employed to establish
frictional locking engagement between the shelf bracket and the
vertical support element. The locking devices may conveniently take
the form of pins received within openings defined in the shelf
bracket and having elongated cam surfaces defined on the pins,
which cam surfaces engage the vertical support element to establish
frictional engagement therewith. Depending upon the weight of the
articles that are to be supported by the shelves and the manner in
which the shelving is to be utilized, the frictional locking
merchanisms may conveniently take the form of rotary cam elements,
bolt energized frictional elements, etc. The undercut slots of the
vertical support elements and the corresponding supporting edges of
the shelf brackets may take any suitable undercut form within the
spirit and scope of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
So that the manner in which the above recited features, advantages
and objects of the present invention, as well as others, which will
become apparent, are attained and can be understood in detail, more
particular description of the invention, briefly summarized above,
may be had by reference to the preferred embodiments thereof
illustrated in the appended drawings, which drawings form a part of
this specification.
It is to be noted, however, that the appended drawings illustrate
only typical embodiments of the invention and are, therefore, not
to be considered limiting of its scope, for the invention may admit
to other equally effective embodiments.
IN THE DRAWINGS:
FIG. 1 is a perspective view of a shelf assembly utilizing vertical
support elements and shelf support brackets constructed in
accordance with the present invention and illustrating the manner
in which the shelf support brackets are assembled in relation to
the vertical support elements and are utilized to support an
article display or storage shelf.
FIG. 2 is a sectional view taken along the line 2--2 of FIG. 1 and
illustrating in further detail the relationship between the
frictional locking means, the vertical support element and the
shelf support bracket.
FIG. 3 is a fragmentary perspective view of a shelf bracket
illustrating the relationship of the shelf bracket and a frictional
locking pin of the nature identified in FIGS. 1 and 2.
FIG. 4 is a fragmentary side elevational view of a vertical support
and shelf support bracket, illustrating employment of a frictional
locking means representing a modified embodiment of the present
invention.
FIG. 5 is a sectional view taken along line 5--5 in FIG. 4,
illustrating further details of the construction of the locking
element of FIG. 4 and also showing the relationship between the
locking element, the vertical support and the shelf support
bracket.
FIG. 6 is a fragmentary side elevational view of a vertical support
and shelf support bracket assembly being retained in assembly by a
frictional locking element comprising a further modified embodiment
of the present invention.
FIG. 7 is a sectional view taken along line 7--7 in FIG. 6,
illustrating further details of the construction of the locking
assembly of FIG. 6.
FIG. 8 is a fragmentary side elevational view of a vertical support
and shelf support bracket assembly including a bracket locking
construction representing a even further modified embodiment of the
present invention.
FIG. 9 is an alternative sectional view similar to FIG. 2, showing
modified support element structure and correspondingly modified
shelf support bracket edge structure.
FIG. 10 is a sectional view similar to the views of FIGS. 2 and 9,
illustrating a support element and shelf support bracket
representing an even further modified embodiment of the present
invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
Attention is first directed to FIG. 1 where the full assembly is
indicated by the numeral 10. The full assembly is formed of various
components as will be individually described and cooperation of the
components with one another will be set forth showing the
fabrication of a display shelf or book shelf which will be
understood through the use of the invention. Attention is first
directed to the upright member 11 shown in FIG. 1. The upright
member may be of generally rectangular configuration if desired
although it may also take any other convenient external
configuration. The upright member is shown to be provided with four
parallel and perpendicular side walls which are preferably of the
same length. The means 11 will be described as the vertical
support, though it need not be positioned only in the vertical
direction, it being obvious that the vertical support 11 may be
positioned at any suitable angle as desired. In the customary use
of the invention, it is typically vertical. The vertical support 11
may be symmetrical about its four faces although symmetry is not
necessary. Each face may duplicate the other faces in the preferred
embodiment.
Reference numeral 12 identifies a groove or slot formed in one face
13 of the support 11. The slot 12 may extend the full length of the
face 13 and may be centered between the two outer edges of the
surface 13, if desired, although such positioning is not mandatory.
The slot 12 has a predetermined width along its length which width
is not critical, but can be, by way of example, something in the
order of one-quarter inch, or greater. The width of the slot, in
large part, depends on the strength of the material forming the
bracket to be described hereinafter.
The slot 12 is immediately adjacent to a recessed and enlarged
elongated chamber indicated by the numeral 14, which chamber may be
defined by three walls comprising a part of the wall structure of
the upright member. The chamber 14 may be coterminous with the slot
12 and is wider than the slot 12. The face 13 is undercut, so to
speak, by the provision of a relatively narrow slot and a wider
slot or chamber 14 immediately beyond the slot that define a pair
of opposed flanges facing shoulders 15 and 16 which extend over the
chamber 14 and define the slot 12.
The construction of the vertical support member 11 may be
symmetrical on all four faces although symmetry not required.
Although not mandatory, it may be desirable from an esthetic point
of view, and from convenience in manufacturing that each face of
the upright support be of similar configuration.
A vertical member 20 is shown in FIG. 1 that may have some degree
of similarity as compared to the upright element 11. The vertical
member 20 may have a similar front face 21 and a similar or
identical groove 22 as compared to the structure of the upright
element 12 and may have a back chamber 24 adjacent to the groove
and coterminous therewith. The basic difference in the vertical
member 20 as compared to vertical member 11 is that it is not
symmetrical on all four faces, and is abbreviated. It is only
provided with one vertical groove 22, and not one on each face. The
vertical member 20 is adapted to be secured to a supportive wall or
other structural member if desired. By way of contrast, the
vertical member 11 is typically available as a free standing unit
which can be attractively viewed from all four sides and which is
also functionally arranged to engage a support bracket on all four
sides. The members 11 and 20 are similar except that the vertical
member 11 is adapted for application in a free standing situation,
while the member 20 can be joined to a wall or can be combined with
other structure for use as a free standing support. Both members 11
and 20, in free standing situations, require other support legs so
that a minimum of three or more legs, or points of stability are
employed with reference to the supporting floor.
The member 20 is abbreviated in structure, and will be discussed
with respect to FIG. 2, it being kept in mind that the manner in
which the support bracket is connected with the vertical member is
the same for either member. A description of the manner of joining
the bracket to the member 20 will likewise apply to the member
11.
Attention is next directed to FIGS. 2 and 3 of the drawings wherein
a blade-like bracket is identified by reference numeral 28. The
bracket is adapted to extend outwardly from the vertical supports
and to provide a supporting function for a display shelf. The
bracket may be formed with a pair of grooves at 31 and 32 which, as
shown in FIG. 3, are preferably identical, and are formed on
opposite faces of the bracket. The grooves 31 and 32 may be of the
same depth and are disposed in generally parallel relation and may
be spaced from a common edge 34 by an equal distance. The grooves
31 and 32 are preferably just slightly larger than the width of the
projecting flanges or shoulders 15 and 16 shown in FIG. 1 in order
to provide a freely slidable relationship between the support
bracket and the upright support. The supporting face of the
vertical support member 20, like the support member 11, may be
formed with a pair of shoulders or opposed flanges which define the
slot or groove in the vertical member. The shoulders 15 and 16 may
be approximately one-fourth to one-eight inch in thickness and the
grooves 31 and 32 of the shelf support bracket may be in the order
of 1/64th inch larger in width to accommodate the shoulders.
The width of the face 34 of the blade or bracket member 28 is
sufficient to be received within the chamber 24 which is
immediately to the rear of the face 21 of the vertical member 20.
The sectional view of FIG. 2 illustrates the support face portion
of the blade 28 extending into the chamber and substantially
corresponding to the size and configuration of the chamber with
slight clearance between the support face and the walls defining
the chamber so the shelf bracket will be capable of rather free
sliding movement.
It will be desirable to provide the support bracket/vertical
support assembly with releasable locking means to insure adjustment
of the brackets and shelves relative to the vertical supports.
According to the present invention such locking means may
conveniently take the form illustrated in FIGS. 2 and 3 where the
shelf brackets 28 may be provided with a transverse aperture 30.
Reference numeral 36 identifies a pin which is tapered by the
inclusion of a flat 37 on one side. The pin 36 may be made of round
stock but is tapered by forming the flat cam surface thereon.
In the use of the invention illustrated in FIGS. 1, 2 and 3 the
blade or support bracket 28 is joined to the upright member 11 or
20 with the face portion of the bracket 28 being disposed within
the appropriate elongated chamber. The upper support surface of the
bracket will extend in generally perpendicular relation with the
upright element. The dimensions of the blade and the vertical
supports will vary in accordance with the intended use of the
present invention. For example, the bracket might be in the order
of one to two feet in length and the vertical face 34 of the
bracket may be in the order of two to eight inches in height
depending upon the strength requirements of the shelving. The
vertical support member might range to full ceiling height for a
given point of installation. Presuming that it is very long, the
bracket 28 may be placed in the slot and is moved along the
vertical support member until the bracket has been properly
positioned. Once the bracket is located, the pin 36 is inserted
into the opening 30 and is driven toward the smaller end of the
tapered face 37 thereby causing the cam surface 37 to react against
the face 21 of the vertical support and develop sufficient
frictional contact to pinch or wedge thereagainst, thereby securing
the bracket in position against the vertical support member. After
this has been accomplished, the bracket will no longer be free to
slide relative to the vertical supports. As viewed in sectional
view of FIG. 2, it will be observed that the insertion of the pin
36 pulls the bracket outwardly or in a direction away from the slot
and tends to pinch the shoulders 15 and 16 disposed therebetween.
The pinching movement develops frictional contact on both surfaces
of the shoulders which frictional contact is sufficient to stop
sliding movement of the blade or bracket. The brackets will thus be
firmly fixed to the vertical supports until the pins 36 are
subsequently moved to release the frictional engagement.
As viewed in FIG. 1, the vertical members 11 and 20 are utilized in
the same manner for securing the blade in question. Both blades
shown in FIG. 1 are attached in the same manner even though the
upright supports are of different configuration. This permits the
blades to be vertically positioned whereby a shelf to be supported
on the blades can be vertically positioned as desired. The blades
can be used to support a shelf, perhaps a transparent shelf, a
closed box, book cabinet, loud speaker, or any of numerous other
devices to be supported for display or storage purposes.
Attention is next directed to FIGS. 4 and 5 of the drawings which
depicts an alternative embodiment for fixing the shelf support
brackets with respect to vertical support elements. In FIG. 4, the
number 20 again indicates the vertical support while reference
numeral 28 identifies the blade or bracket. An aperture 29 may be
formed in the blade or bracket in generally transverse relation to
the slot in the vertical support. As shown in FIG. 5, an eccentric
bolt mechanism may be provided at 40 which may include a pair of
cam heads 41 and 41a, the head 41 having a slot formed therein to
receive a screw driver or other suitable implement. The heads 41
and 41a may be disposed in eccentric relation with a shaft portion
42 that is rotatably received within the aperture 29 of bracket 28.
The two heads may join to the shaft 42 by integral fabrication or
by separate fabrication and ultrasonic welding or epoxy resin
binders. The entire eccentric mechanism may take any other suitable
form achieving eccentric camming actuation of elements for the
purpose of establishing frictional engagement between cam elements
and the vertical supports of a display shelf assembly.
The blade may be inserted into the vertical support member 20 with
the eccentric cam heads rotated away from the front face of the
vertical support 20. The cam heads then may be rotated by screw
driver manipulation to position the eccentric sides away from the
vertical support 20. When the blade 28 is at the desired vertical
position with respect to the support 20, the screw driver may be
inserted into the slot in cam head 41 and rotated, thereby bringing
the eccentric heads carried on the bolt mechanism 40 into contact
with the vertical member thereby wedging the bolt against the face
of the vertical support and drawing the blade toward the bolt
mechanism. This achieves sufficient frictional engagement between
the eccentric heads and the vertical support to frictionally secure
the support bracket against movement relative to the vertical
support 20. Once frictional engagement has been achieved, it can be
released by using a screw driver to rotate the eccentric bolt
mechanism 40 in such direction that the cam heads move out of
frictional engagement with the vertical support.
Attention is next directed to FIGS. 6 and 7 which show further
alternative embodiments. In FIG. 6, the blade, indicated by the
numeral 128, is similar in most respects to the blade 28 shown in
FIG. 4, except that the aperture is omitted and a downwardly
extending tab 129 is attached to or formed integrally with the
blade. The tab 129 extends from the lower portion of the blade 128
and is received within the chamber behind the opposed flanges or
shoulders defining the elongated slot in the vertical support
member 20. The projecting tab 129 may be provided with a threaded
opening that is exposed thorugh the slot. The tapped opening may be
exposed for receiving a threaded locking member therein.
The numberal 130 identifies a bolt or other suitable locking
element that may be threaded into the projecting tab 129. A flat
washer 131 may be placed beneath the head of the locking element to
spread the loading on the opposed shoulders. The bolt may be
tightened to develop a force of sufficient magnitude to develop a
pinching or friction inducing action between the head of the bolt
and the tab 129 attached to the lower portions of the projecting
blade or bracket 128. The friction inducing action is perhaps
better shown in the sectional view of FIG. 7. The bolt 130 causes
the washer 131 and tab 129 to pinch the shoulders 15 and 16 with
sufficient force to develop sufficient frictional engagement to fix
the blade in position relative to the vertical support.
Attention is next directed to FIG. 8 of the drawings which shows a
slightly further modified version from that shown in FIG. 6. In
FIG. 8, the blade is indicated by the numeral 228 and has a
projecting tab 229. The tab is somewhat thicker than the tab 129
shown in FIG. 6 and it may be tapped with a threaded opening to
receive a bolt 230. The bolt 230 may extend through the tab 229 and
may bear against the back wall of the recess or chamber 24 (see
FIG. 1). The bolt 230 is urged into contact with the back wall by
its threaded relation with the tab 229 thus forcing the lower
portions of the blade 228 forwardly as viewed in FIG. 8 thereby
developing frictional engagement with the opposed shoulders or
flanges defining the groove. This feature locks the blade or
mounting bracket 228 in position with respect to the upright member
20 therefore preventing subsequent movement of the bracket and
holding the shelf support assembly in fixed position.
The embodiment of FIG. 8, as well as the other embodiments shown at
FIGS. 4 and 6, are utilized in the same manner as the structure
shown in FIG. 1. It is believed that detailed examples of use for
each is not required.
Attention is next directed to FIGS. 9 and 10 of the drawings. In
FIG. 9, an embodiment indicated at 100 utilizes an interfitting
triangular groove and bracket structures while the embodiment of
FIG. 10 at 200 is yet different. In FIG. 9, the drawings reveal a
bracket face of generally triangular cross section which is
provided on one edge of the bracket. The triangular cross section
still provides a substantial amount of surface facing against and
contacting the opposed shoulders 15 and 16. The vertical member is
provided with a groove of generally triangular corresponding cross
section to accommodate the triangular face portion of the
bracket.
The embodiment illustrated generally at 200 in FIG. 10 is useful
with a vertical support member such as that shown at 220. The
vertical support member 220 is modified. The blade is shown to have
an appended elongated bead that may be of circular cross section or
of elliptical cross section as desired. The vertical support member
220 may be correspondingly constructed to accommodate the
particular cross sectional configuration of FIG. 10. The
embodiments of FIGS. 9 and 10 can be employed as desired in lieu of
the embodiment of the vertical members shown in FIG. 1.
Several significant features of the present invention should next
be considered. The vertical support member 11 can be manufactured
as a single piece, but it is considered less expensive and easier
to fabricate by using a single die which extrudes one-half of the
structure. Thereafter, two halves may be joined together by means
of a suitable adhesive, by ultrasonic welding or by any other
suitable means of connection to form the entirety of the structure.
It can be divided along a center line.
The present invention should be next considered in use and
operation. The vertical support may be formed in the manner
mentioned above in the preferred use and implementation of the
present invention. A full four-sided, vertical support member may
be formed as shown in FIG. 1 at 11. This structure may be of
square, rectangular or rounded configuration, depending upon the
design characteristics that are desired. The vertical support
member may provide a readily useable free standing structure and
may enable the assembly of a free standing display shelf unit. By
way of contrast, the vertical support member 20 can be exactly
one-half of the apparatus shown at 11 in FIG. 1, or can be further
abreviated as shown in sectional view in FIG. 2. For an economy of
fabrication cost, however, the vertical support member 20 may be
one-half of the support member 11, and hence, will include one-half
of the grooves or chambers indicated at 14 in FIG. 1.
The vertical support members may be positioned as desired and the
horizontallly extending support brackets may be installed by
engaging them at the end of the support members and moving them
fairly free of friction along the slot. They are moved along the
slot 12 with a face portion thereof disposed within the chamber or
recessed portion beneath the slot indicated by the numerals 14 and
24. The brackets may be moved to the desired position and then may
be secured in position by tapered locking pins 36. The pins may be
driven to wedge and lock the brackets in position. Once further
vertical movement of the support brackets is prevented, the shelf
or other suitable structure may be placed upon the locked support
brackets. As desired, the vertical support members can be located
free standing, away from any walls, or can be attached or joined to
walls or supportive structure as desired. The apparatus permits the
installation of a free standing center of the room device, or a
wall mounted structure. The apparatus of the present invention is
readily adapted for either purpose.
The other embodiments shown in the drawings can be utilized in the
illustrated manner. The pin 36 shown in FIG. 3 can be deleted and
the eccentric mechanism shown in FIGS. 4 and 5 can be substituted
therefor. The blade may be modified in the manner shown in FIGS. 6
and 8 depending on the circumstances of use and installation.
While many objects and advantages of the present invention will
become readily apparent from a consideration of the foregoing
written specification, the scope of the invention is determined by
the claims which are appended hereto.
* * * * *