U.S. patent number 3,604,673 [Application Number 04/876,873] was granted by the patent office on 1971-09-14 for picture straightener.
Invention is credited to Robert I. Klein.
United States Patent |
3,604,673 |
Klein |
September 14, 1971 |
PICTURE STRAIGHTENER
Abstract
A two-part picture straightener, each part of which is attached
respectively by a pressure-sensitive adhesive to the rear of a
picture frame and the wall on which it is hung. Lateral
displacement is prevented by a mating ridge and groove on
respective elements. Also the two elements attract each other
magnetically.
Inventors: |
Klein; Robert I. (Lawrence,
NY) |
Family
ID: |
25368749 |
Appl.
No.: |
04/876,873 |
Filed: |
November 14, 1969 |
Current U.S.
Class: |
248/467;
428/900 |
Current CPC
Class: |
A47G
1/168 (20130101); Y10S 428/90 (20130101) |
Current International
Class: |
A47G
1/16 (20060101); A47f 007/14 (); A47q 001/17 () |
Field of
Search: |
;248/467,477,496,26A,25A,494 ;335/285-287,302,304,306 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Schultz; William H.
Claims
What is claimed is:
1. A picture straightener comprising a first element having two
faces one of which is coated with an adhesive for attachment to the
rear of a picture frame, and a second element having two faces one
of which is coated with an adhesive for attachment to a wall, one
of said elements having on the other face thereof at least one
triangularly shaped ridge and the other of said elements having on
the other face thereof at least one triangularly shaped groove,
with said at least one groove and said at least one ridge arranged
to mate with each other, wherein at least one of said first and
second elements is magnetized such that said first and second
elements are attracted magnetically to each other, and further
wherein the two faces of one of said first and second elements are
at an angle relative to each other which is approximately equal to
the angle at which said picture is to be hung from a wall.
2. A picture straightener in accordance with claim 1 wherein said
element having said two faces at an angle relative to each other
includes a first part having said adhesive on one face thereof and
a second part for mating with the other element, said second part
and said first part having mating means for maintaining said second
part within said first part.
3. A picture straightener in accordance with claim 2 wherein said
mating means permits said second part to be moved within said first
part in a direction away from the plane of said adhesive and
prevents movement of said second part in other directions.
4. A picture straightener comprising a first element having two
faces attachable to the rear of a picture frame, and a second
element having two faces attachable to a wall, one of said elements
having on one face thereof at least one triangularly shaped ridge
and the other of said elements having on one face thereof at least
one triangularly shaped groove, with said at least one groove and
said at least one ridge arranged to mate with each other, wherein
one of said first and second elements includes a first part having
an adhesive on one face thereof and a second part for mating with
the other element, said second part and said first part having
mating means and magnetic means for maintaining said second part
within said first part.
5. A picture straightener in accordance with claim 4 wherein said
mating means permits said second part to be moved within said first
part in a direction away from the plane of said adhesive and
prevents movement of said second part in other directions.
6. A picture straightener in accordance with claim 5 wherein the
two faces of one of said first and second elements are at an angle
relative to each other which is approximately equal to the angle at
which said picture is to be hung from a wall.
7. A picture straightener in accordance with claim 6 wherein at
least one of said first and second elements is magnetized such that
said first and second elements are attracted magnetically to each
other.
Description
This invention relates to picture straighteners, and more
particularly to picture straighteners which can be mounted with a
minimum of effort and measurement.
A common household chore is the straightening of pictures, mirrors,
etc. (As used herein, the term "picture" includes mirrors and any
other similar type of object which is hung by a wire or hook from a
wall.) Ordinary household vibrations are often sufficient to cause
a picture to move such that it no longer hangs straightly.
A number of picture straighteners have been proposed in the prior
art. Generally, such a picture straightener consists of two parts,
one for attachment to the wall and the other for attachment to the
rear of the picture. The two parts engate each other in a way such
that they cannot move relative to each other in the horizontal
direction. Because one of the two parts is fixed to the wall, the
picture is maintained in a straight orientation after it is first
placed in that position.
There are a number of shortcomings of the prior art picture
straighteners, and it is for this reason that they have not had
widespread use. It is apparent that it is exceedingly difficult to
attach one element to the wall and another to the rear of the
picture frame (before or after it is hung) and to expect perfect
engagement of the two elements after the picture is placed in the
desired hanging position. Unless precise measurements are taken, it
is found that in many cases the two elements are mounted such that
they do not maintain the picture in a straight orientation.
A necessary feature of a picture straightener is that it allow the
picture to be moved simply. It may be necessary to move the picture
to gain access to the wall supporting it (e.g. in the case of an
electrical outlet in back of the picture), or even to remove the
picture for cleaning or painting of the wall. If the two elements
engage each other in a way such that their connection cannot be
broken simply, the picture straightener may present disadvantages
which outweigh the advantage of not having to periodically
straighten the picture.
In many cases it is found that very small lateral movements may be
necessary, especially if the hanging operation has not been
perfect. Prior art picture straighteners have not permitted this
slight movement at the same time that the picture is held in place
after setting.
It is a general object of my invention to provide a two-part
picture straightener which can be attached to a wall and picture
frame in a very short time and which does not require any precise
measurements in connection therewith.
It is another object of my invention to provide a picture
straightener which allows the picture to be removed simply from the
wall when necessary.
It is another object of my invention to provide a picture
straightener which allows small lateral adjustments to be made.
In accordance with the principles of my invention, I provide two
engaging elements, each having a pressure-sensitive adhesive
backing. Initially, each adhesive backing is provided with a
protective paper or plastic facing. In order to mount the picture
straightener, both protective facings are removed and the two
elements are attached to each other on their nonadhesive faces. The
first element is pressed against the rear of the picture frame and
adheres to it. The second element remains attached to the first.
The picture is then hung and when it is determined that it is in a
straight orientation the picture is pressed against the wall. At
this time the second element adheres to the wall and the
picture-hanging operation is complete.
One of the elements has a series of vertical grooves and the other
has at least one ridge which mates with a selected one of the
grooves. The mating of the ridge with one of the grooves prevents
relative lateral movement between the two elements. The grooves and
ridge (or ridges) are preferably triangularly shaped. This permits
small lateral adjustments to be made after hanging, that is, the
picture can be moved angularly if it was not hung straight
initially. Such small lateral adjustments are not possible, for
example, if the grooves and ridges have identical rectangular cross
sections.
Preferably, one of the two elements is made of iron and the other
is a magnet. (Alternatively, both elements may be magnetized.) The
force of attraction aids in preventing lateral movement of the two
elements.
Further objects, features, and advantages of my invention will
become apparent upon consideration of the following detailed
description in conjunction with the drawing, in which:
FIG. 1 depicts a first illustrative embodiment of my invention;
FIG. 2 is a side view showing the manner in which the two elements
of FIG. 1 serve to maintain a picture in a vertical
orientation;
FIG. 3 depicts an alternative element for one of the elements of
FIG. 1;
FIG. 4 depicts the manner in which a picture is held straight
utilizing a pair of elements, one of which is of the form shown in
FIG. 3;
FIGS. 5A and 5B depict two components of a single element having
combined characteristics similar to those of the element shown in
FIG. 3; and
FIGS. 6A and 6B depict another two components of a single element
having combined characteristics similar to those of the elements
shown in FIG. 3.
Referring to FIG. 1, the picture straightener consists of two
elements 10 and 12. Element 10 includes a metal section or plate 16
having a plurality of vertical grooves 14 therein. The grooves are
triangularly shaped in cross section. To the rear of the metal
element is a layer of pressure-sensitive adhesive material 18.
Initially, the pressure-sensitive adhesive surface is covered by a
protective paper or plastic sheet 20.
The second element 12 consists of a plate magnet 22 having a
vertical ridge 24 along its center. To the rear of the magnet is a
layer of pressure-sensitive adhesive 26, protected with paper or
plastic sheet 28.
It is apparent, of course, that section 16 could be the magnet and
section 22 could be a nonmagnetized iron element. Alternatively,
both elements could be magnetized such that they attract each
other. Similarly, the ridge (or ridges) and grooves can be
interchanged on the two elements. In fact, two elements such as
element 10 could be used together.
In order to mount the picture straightener to the picture frame and
wall, the two elements are brought to bear against each other as
shown by arrow 30, with ridge 24 being inserted in one of grooves
14, preferably in the center groove of element 10. Both protective
backings 20 and 28 are then removed and element 12 is centered and
pressed against the bottom of the rear of the picture frame. The
picture is then hung, for example, by wire 36, on wall 32 as shown
in FIG. 2. The picture frame 34 is initially hung with its bottom
edge held away from the wall. It is then positioned in a straight
orientation and slowly allowed to fall against the wall. When
contact is made with the wall, the pressure-sensitive backing 18 of
element 19 adheres to the wall and the picture-hanging operation is
complete.
The mating ridge and groove together with the magnetic attraction
of the two elements prevent large relative lateral displacement of
the two elements. Small adjustments can be made due to the fact
that if the picture is rotated slightly the ridge meshes with an
adjacent groove. In such a case, the ridge and groove will not be
parallel with each other and the picture will be forced slightly
away from the wall. Of course, in the case of extreme vibration it
is possible that the picture will be jarred from its straight
position. All that is required to correct the condition, however,
is to straighten the picture and to then allow it to fall against
the wall. The magnetic attraction, together with the
ridge-groove-locking configuration, is sufficient to prevent
jarring of the picture under ordinary conditions. The magnetic
attraction is not sufficient, however, to prevent removal of the
picture when it is desired to do so.
Elements 10 and 12 of FIG. 1 are relatively easy to fabricate.
However, reference to FIG. 2 shows that as a result of the angle at
which the picture is ordinarily hung, only the lower portions of
the two elements engage each other. In order to allow complete
mating of ridge 24 with one of grooves 14 along the vertical
dimension of the elements, element 60 of FIG. 3 can be substituted
for element 10 of FIG. 1.
Element 60 includes iron section 70 having a plurality of grooves
62 in the forward face thereof. The element is also provided with a
pressure-sensitive adhesive backing 64, initially protected by
paper or plastic sheet 66. The major difference between element 60
of FIG. 3 and element 10 of FIG. 1 is that grooves 62 are not
parallel with the rear face of the element. When element 60 is
used, as shown in FIG. 4, the rear face of the element is vertical
since it is attached to the wall. However, the front face
containing the grooves is at an angle relative to the wall, this
angle being as close as possible to the angle at which the picture
is hung. (Elements 60 having different angles can be used for
different sized pictures whose angles of hanging are necessarily
different.) It is apparent that in such a case ridge 24 of element
12 will mate with one of the grooves 62 all along the vertical
dimension of the two elements.
It will be apparent that element 12 can be attached to the wall and
element 60 can be attached to the picture frame, with the two
elements still mating with each other all along their vertical
dimension. It will also be apparent that the front and rear faces
of both elements can be at an angle relative to each other, as long
as when the elements mate with each other the two rear faces are at
an angle approximating the angle which the picture makes with the
wall.
Instead of constructing the element of FIG. 3 from a single piece
of metal 70, it is possible to make the element from two components
as shown in FIGS. 5A and 5B. FIG. 5A depicts a plastic holder
section 40. The rear of the holder is coated with a
pressure-sensitive adhesive 44 protected by backing 46. The front
face 54 of the holder is at an angle to the rear face, which angle
is the same as the angle between the front and rear faces of the
element of FIG. 3. Holder section 40 includes two guides 48 along
the inner faces of the two side sections. The grooves are parallel
with the front face 54.
Element 56 (FIG. 5B) is shown in cross section. It is made of iron,
has a plurality of grooves 48, and further includes two extensions
58 along its side edges. These two extensions fit into guides 48 of
element 40 and allow element 56 to be slipped into the holder
section. Although the front and rear faces of element 56 are
parallel with each other, because guides 48 are at an angle
relative to the rear face of element 40, it is apparent that when
element 56 is slipped into the holder the front face of element 56
will be at an angle relative to the rear face of element 40.
FIGS. 6A and 6B depict a still further embodiment of the invention.
Holder 80 has parallel front and rear faces. As in the case of
holder 40, a pressure-sensitive adhesive layer is included on the
rear face of the holder. The holder includes a central cutout
having a width L in the horizontal direction, and a width D in the
direction facing away from the wall. At the front of the holder are
two upstanding frame sections 82.
Element 86 of FIG. 6B is similar to element 56 of FIG. 5B, except
that it is thicker. The maximum width of element 86 has a dimension
L, and the total thickness of the element is greater than dimension
D. The rear plate section of the element has a dimension D',
smaller than the dimension D. When element 86 is placed into the
cutout in element 80, it is apparent that element 86 can be moved
toward and away from the wall within the holder. Because dimension
D is greater than dimension D', there is a considerable range
through which element 86 can be moved toward and away from the wall
within holder 80. What is more important is the fact that element
86 need not be moved in a given orientation within holder 80. If
the bottom edge of the element is held against the inner face of
the rear section of element 80 and the upper edge of element 86 is
pulled forward, it will be apparent that grooves 84 will be at an
angle relative to the wall, which angle can be varied.
The major advantage of the embodiment of the invention shown in
FIGS. 6A and 6B is that the angle of grooves 84 relative to the
wall can be adjusted. No matter how the picture has been hung,
ridge 24 of element 12 (FIG. 1) will mate all along its length with
one of grooves 84. The same is not true if the element of FIGS. 3
or 5 is used unless the angle between the picture and the wall is
the same as the angle between the front and rear faces of the
element. Although element 86 can move within holder 80 in the
embodiment of FIGS. 6A and 6B, lateral movement cannot take place.
It is the prevention of the lateral movement which insures that the
picture remains straight after it is hung.
Although the invention has been described with reference to
particular embodiments, it is to be understood that these
embodiments are merely illustrative of the application of the
principles of the invention. Numerous modifications may be made
therein and other arrangements may be devised without departing
from the spirit and scope of the invention.
* * * * *