Information
-
Patent Grant
-
6186454
-
Patent Number
6,186,454
-
Date Filed
Tuesday, December 31, 199628 years ago
-
Date Issued
Tuesday, February 13, 200124 years ago
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Inventors
-
-
Examiners
Agents
- Smith; Ronald E.
- Smith & Hopen, P.A.
-
CPC
-
US Classifications
Field of Search
US
- 248 2184
- 248 2193
- 248 2194
- 248 742
- 248 743
- 248 741
- 248 2301
- 248 2307
- 248 2308
- 040 607
- 040 611
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International Classifications
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Abstract
An aethetically pleasing sign holder releasably engages a pole or post without requiring tools and protects a sign from the elements. A sign is slid into an opening formed in an edge of a thin, hollow sign housing, and a front wall of the housing is transparent so that the sign within the hollow housing is visible to observers. The sign housing is mounted to a swivally-mounted base and a pair of flexible and resilient, semi-circular parts are integrally formed with the base. The half parts are spread apart from one another to admit a pole between them, and converged toward one another to lock onto the pole. A catch is formed integrally with one of the half parts and a latch that releasably engages the catch is formed integrally with the other half part. The catch and latch include mating teeth that extend along a predetermined circumferential extent to enable attachment of the sign holder to poles of widely varying diameters.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates, generally, to devices for holding advertising or noncommercial signs. More particularly, it relates to an attractive sign holder that is releasably attachable to poles without requiring tools and which protects signs from the elements.
2. Description of the Prior Art
People holding yard sales, garage sales, and the like often attach posters or other informal signs to telephone poles or other post means to advertise their events. Certain sellers of computer memory and other goods or services also employ the same technique to avoid the high cost of formal outdoor advertising billboards.
Such handmade signs are somewhat unsightly and as a result many cities have passed ordinances banning them. The signs are also unprotected from the weather, so they become even more unsightly when rained upon. Moreover, since the signs are usually attached to the post means by very casual means, they are easily taken down by wind or passers-by.
More sophisticated sign holders are also well known, but have not gained consumer acceptance due to their complicated designs, their expense, and other factors such as aesthetics, the need to employ tools when installing them, and so on.
What is needed, then, is an inexpensive sign holder that is attractive in appearance, which may be installed and removed from a post means without tools, and which protects the sign from the effects of weather.
An arcuate compression clamp having utility as a sign holder is disclosed in U.S. Pat. No. 5,305,978 to Current. The clamp releasably engages an elongate cylindrical rod that forms a part of a horizontally disposed display rack and includes a radially extending base to which a sign may be engaged. The sign is always used indoors, and no means are provided or suggested for protecting the sign from the elements. Moreover, the device includes a card holder that engages a card or other sign along its lowermost edge only, i.e., the remaining edges of the sign or card are not secured by the card holder.
Three signs are attached to a parking meter by the device disclosed in U.S. Pat. No. 2,616,196 to Sandahl, Jr. et. al. However, each sign must be bolted to a support plate, so changing signs is not easy. Nor are the signs protected from the elements.
Neuendorf et.al., in U.S. Pat. No. 5,088,672, disclose a sign holder that is bolted to clamps that circumscribe a pole. No means are provided to facilitate sign changing and no means are provided for protecting a sign from the effects of weather.
A spring clip that lightly grips upstanding posts, trees and the like is disclosed in U.S. Pat. No. 2,262,873 to Wise. The Wise device includes no means for sheltering or protecting documents from the elements, and the light grip provided may be unacceptable in some applications.
What is needed, then, is a sign holder that eases the task of sign changing and which protects a sign from the elements. The needed device should also be attachable to a vertical or horizontal post, tree, or other suitable support surface in the absence of bolts and other tool-requiring fastening means. The device should also be attractive and professional in appearance to maximize its aesthetic appeal.
However, in view of the art taken as a whole at the time the present invention was made, it was not perceived by those of ordinary skill in the field of this invention that the needed device should be provided nor was it obvious how the needed device could be provided.
SUMMARY OF THE INVENTION
The longstanding but heretofore unfulfilled need for an apparatus that overcomes the limitations of the prior art is now met by a new, useful, and nonobvious sign holder.
The present invention includes a hollow sign housing having a preselected open edge for slideably receiving a sign into such hollow sign housing. The hollow sign housing has a transparent front wall so that a sign disposed inside the sign housing is visible to onlookers.
The sign housing further includes a flat base for supporting the hollow sign housing, and a post gripping main body integrally formed with the flat base; optionally, the hollow sign housing is rotatably connected to the flat base to enable positioning of the sign housing in any preselected position of rotational adjustment.
The post-gripping main body has a semi-circular first half part and a semi-circular second half part formed of a flexible and resilient material so that the first and second half parts may be transiently displaced away from one another to admit a post means therebetween and brought toward one another to cooperatively embrace a post.
A catch means is formed integrally with the first half part and a latch means is formed integrally with the second half part.
The catch means includes a radially outward part and a radially inward part that are radially spaced apart from one another by a predetermined distance; the radially outward part and radially inward part have a substantially common circumferential extent.
The latch means includes a radially outward part and a radially inward part that are radially spaced apart from one another by a predetermined distance; the radially outward part and radially inward part of the latch means have a substantially common circumferential extent.
It is a primary object of this invention to provide a sign holder that is readily attachable and detachable from a vertical or horizontal support post in the absence of tools yet which provides a very firm, non-slip grip on such post.
Another very important object is to provide a sign holder that facilitates sign changing.
Still another important object is to provide a sign holder that protects signs held by it from the effects of weather.
Yet another object is to accomplish the foregoing objects in an aesthetically pleasing way.
These and other important objects, features, and advantages of the invention will become apparent as this description proceeds.
The invention accordingly comprises the features of construction, combination of elements and arrangement of parts that will be exemplified in the construction hereinafter set forth, and the scope of the invention will be indicated in the claims.
BRIEF DESCRIPTION OF THE DRAWINGS
For a fuller understanding of the nature and objects of the invention, reference should be made to the following detailed description, taken in connection with the accompanying drawings, in which:
FIG. 1
is a top plan view depicting an illustrative embodiment of the device in its open, post-receiving configuration;
FIG. 2
is a top plan view depicting said embodiment in its closed and locked configuration;
FIG. 3
is a front elevational view of said illustrative embodiment of the invention when installed on a vertical pole;
FIG. 4
is a side elevational view thereof;
FIG. 5
is a perspective view indicating how a sign can be introduced into a preselected edge of the sign housing;
FIG. 6
is an end elevational view of the novel sign holder when installed on a horizontal post;
FIG. 6
a
is a front elevational view of the embodiment of
FIG. 6
; and
FIG. 7
is a top plan view like that of
FIG. 2
, but further depicting an alternative locking means that defeats facile removal of the device from a post.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to
FIGS. 1 and 2
, it will there be seen that an exemplary embodiment of the invention is denoted as a whole by the reference numeral
10
.
Device
10
, to be known commercially under the trademark PoleWriter, includes a hollow sign housing
12
of parallelepiped construction that is fixedly secured by suitable means to a flat base
13
that includes a flat surface against which a medial part of housing
12
abuts. Optionally, a pivot pin means
11
may be employed to rotatably connect housing
12
and flat base
13
.
A flexible and resilient ring-like main body or pole-gripping means
14
is integrally formed with base
13
; said means
14
has a first half
16
and a second half
18
that collectively encircle and define a cylindrical, pole or post receiving area
20
when device
10
is in its closed, pole-gripping configuration as depicted in FIG.
2
. Each half part
16
and
18
is of semi-circular configuration as depicted.
Device
10
may be made of any suitable material but preferably is formed of a flexible and resilient high-impact plastic. This enables half parts
16
and
18
to be transiently displaced away from one another as indicated in
FIG. 1
to admit a pole into area
20
and to be converged toward one another to cooperatively embrace a pole as indicated in FIG.
2
.
Catch
22
is formed integrally with first half
16
; it includes a relatively thick radially inward part
23
into a radially outward surface of which is formed a plurality of equidistantly spaced teeth
24
that extend parallel to one another and parallel to a longitudinal axis of cylindrical area
20
. Said catch
22
further includes a radially outward part
26
that tapers down to a relatively thin free end as depicted. Note that parts
23
and
26
have a substantially common circumferential extent, that they share a common proximal end, and that their respective free ends are spaced apart from one another by a predetermined distance.
More particularly, thin outward part
26
of catch
22
is radially spaced from thick inward part
23
of said catch to define a space for receiving radially outward part
28
of latch
30
.
Latch
30
is integrally formed with second part
18
of main body
14
and further includes a radially inward part
32
of relatively thin construction that tapers down to a thin free end as depicted. Parts
28
and
32
share a substantially common circumferential extent as well as a common proximal end, and their respective free ends are spaced apart from one another by a predetermined distance. The radial spacing between radially outward part
28
and radially inward part
32
is sufficient to snugly receive radially inward part
23
of catch
22
, and said three parts are arcuate in configuration to facilitate said reception.
Parts
28
and
32
share a substantially common circumferential extent with one another as aforesaid and with the aforementioned substantially common circumferential extent of parts
23
and
26
. Accordingly, the circumferential extent of the spacing between parts
28
and
32
and the spacing between parts
23
and
26
is substantially the same so that the circumferential extent of the spacing between parts
23
and
26
is sufficient to fully receive part
28
of latch means
30
and the circumferential extent of the spacing between parts
28
and
32
is sufficient to fully receive part
23
of catch means
22
when the device is closed about a pole of a predetermined minimum diameter.
A plurality of parallel, equidistantly spaced teeth, collectively denoted
34
, are formed on a radially inward surface of latch outward part
28
so that said teeth
34
progressively engage teeth
24
as outward part
28
of latch
30
is progressively introduced into the space defined by inward and outward members
23
and
26
of catch
22
.
The spacing between parts
23
and
26
of said catch is similarly preselected to enable snug reception of outward latch part
28
into the space between said parts
23
and
26
during said progressive introduction of said outward part
28
.
Thin outward part
26
of catch
22
is sufficiently flexible to enable teeth
34
to ride over teeth
24
during the convergence of half parts
16
and
18
of main body
14
, it being understood that said flexibility enables said part
26
to transiently displace radially outwardly as teeth
34
slide over teeth
24
. Part
26
is also sufficiently resilient to resume its position of repose as depicted in
FIG. 2
after half parts
14
and
16
are positioned in fully embracing relation to a post.
Teeth
24
and
34
are formed along the respective circumferential extents of their respective parts
23
and
28
so that sign holder
10
accommodates poles or posts of widely varying diameters.
Parts
23
and
28
share a substantially common thickness as do parts
26
and
32
, the former parts having a greater thickness than the latter.
To release device
10
from a post, the free end of radially outward part
26
of catch
22
is manually lifted, i.e., displaced in a radially outward direction. Teeth
24
and
34
may then disengage due to an inherent resilience of parts
23
and
28
, or said teeth may be manually separated from one another if need be. Once the teeth no longer engage one another, half parts
14
and
16
are separated from one another, i.e., the steps required to fasten device
10
to a post are simply reversed.
FIGS. 3 and 4
depict the novel sign holder
10
in front and side elevation, respectively, when mounted on a pole
60
; the pole is depicted in phantom lines.
FIGS. 3 and 4
also depict, in phantom lines, a couple of alternative position of sign housing
12
made possible by pivot pin
11
. The pivot means could be constructed to allow positioning of sign housing
12
in any preselected position of rotational adjustment, and could further include means for locking said sign housing into each of said preselected positions.
There is no need, however, to detach device
10
from a post whenever a sign change is desired, Hollow sign housing
12
includes a front wall
40
of transparent construction and includes a slot
42
that extends along the entire extent of a preselected transverse or longitudinal edge thereof. Thus, as depicted in
FIG. 5
, a sign
43
is introduced into the hollow interior of housing
12
through such slot
42
, as indicated by directional arrow
45
, and said sign is removed by reversing the insertion procedure. In this way, device
10
may be left in place at all times.
The sign disposed within housing
12
is visible due to the transparent structure of front wall
40
thereof. Advantageously, the structure of housing
12
also protects the sign from the effects of rain, wind, and the like.
Just as importantly, the strong grip provided by the engagement of teeth
24
and
34
to one another ensures that device
10
will remain in place as long as desired.
FIG. 6
depicts novel sign holder
10
in end elevation when attached to a horizontal post
62
, and
FIG. 6
a
depicts such assembly in front elevation. In such a configuration, it would hold a noncommercial sign such as an informational sign about an animal at a zoo, for example, and it would be viewed from above as indicated by the arrows.
FIG. 7
depicts a locking means that could be added to prevent unauthorized persons from removing device
10
from the post to which it is mounted. A common padlock, not shown, could be employed to lock the device, or a bolt
64
having a special head
66
requiring a special tool to remove it could be employed as well; the bolt would extend through a bore formed in parts
26
,
28
,
23
, and
32
. Such special-headed bolts are well known. Numerous other well-known locking means could also be provided, it being understood that the specific locking means used is not critical.
A hinged door assembly and locking means, not shown, could also be added to close slot
42
to prevent unauthorized sign removal.
The professional appearance of device
10
enhances the aesthetics of the post to which it is secured, thereby eliminating the aforementioned complaints about post-mounted signs in general. It also provides a very strong, non-slip grip in the absence of tools and hardware such as nuts and bolts, while protecting signs from the elements and facilitating sign changing.
It will thus be seen that the objects set forth above, and those made apparent from the foregoing description, are efficiently attained and since certain changes may be made in the foregoing construction without departing from the scope of the invention, it is intended that all matters contained in the foregoing construction or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween.
Claims
- 1. A sign holder, comprising:a hollow sign housing having a preselected open edge for slideably receiving a sign into said hollow sign housing when said sign holder is fully assembled and in use; said hollow sign housing having a transparent front wall; a flat base for supporting said hollow sign housing; a pivot pin disposed in interconnecting relation to said hollow sign housing and said flat base; said pivot pin being centrally disposed with respect to said hollow sign housing and said flat base; said hollow sign housing being rotatable about said pivot pin so that said hollow sign housing is positionable in a plurality of preselected rotational positions of adjustment relative to said flat base; a main body integrally formed with said flat base, said main body adapted to grip a post; said main body having a semi-circular first half part and a semi-circular second half part formed of a flexible and resilient material so that said first and second second half parts may be transiently displaced away from one another to admit a post therebetween and brought toward one another to cooperatively embrace a post; a catch means formed integrally with said first half part; and a latch means formed integrally with said second half part.
- 2. The sign holder of claim 1, wherein said housing is formed of a flexible and resilient high-impact plastic.
- 3. The sign holder of claim 1, wherein said hollow sign housing is of parallelepiped configuration.
US Referenced Citations (22)