U.S. patent number 3,866,343 [Application Number 05/382,923] was granted by the patent office on 1975-02-18 for indicia display panel.
Invention is credited to Edward N. K. Cooper, William B. Frost.
United States Patent |
3,866,343 |
Frost , et al. |
February 18, 1975 |
INDICIA DISPLAY PANEL
Abstract
Indicia bearing strips are mounted in edge-to-edge relationship
so that their outer surfaces will lie flush over a backing. Such
strips are replaceable and held in place by magnetic attraction.
The strips may be assembled in such edge-to-edge relationship
through an access slot along one edge of a directory board.
Inventors: |
Frost; William B. (Bellevue,
WA), Cooper; Edward N. K. (Vancouver 14, British Columbia,
CA) |
Family
ID: |
26772814 |
Appl.
No.: |
05/382,923 |
Filed: |
July 26, 1973 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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85518 |
Oct 30, 1970 |
3751836 |
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Current U.S.
Class: |
40/585; 40/600;
40/611.06; 40/611.02; 40/568 |
Current CPC
Class: |
B23Q
3/154 (20130101); G09F 7/04 (20130101) |
Current International
Class: |
G09F
7/04 (20060101); G09F 7/02 (20060101); B23Q
3/154 (20060101); B23Q 3/15 (20060101); G09f
011/30 () |
Field of
Search: |
;40/63R,64R,65,286-287,142,28A ;35/7A |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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327,201 |
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Apr 1930 |
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GB |
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125,260 |
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Jun 1949 |
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SW |
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Primary Examiner: Wolff; John H.
Attorney, Agent or Firm: Beach; Robert W.
Parent Case Text
This application is a division of copending application Ser. No.
085,518, filed Oct. 30, 1970 for Indicia Display, now U.S. Pat. No.
3,751,836.
Claims
1. In an indicia display directory board including a facing
component having a backing panel, an outer transparent sheet
overlying the backing panel and means securing the transparent
sheet and the backing panel in spaced relationship for defining a
cavity between the outer face of the backing panel and the
transparent sheet with an access slot formed between one edge
portion of the backing panel and the overlying edge portion of the
transparent sheet and communicating with such cavity, an indicia
strip slidable edgewise out of such cavity through such access
slot, a stationary component located behind the facing component
with the backing panel of the facing component closer than the
outer transparent sheet to the stationary component, and securing
means connecting the facing component and the stationary component,
the stationary component including a fixed panel, the improvement
comprising a fixed slot-obstructing side flange carried by the
fixed panel of the stationary component and projecting forward from
the fixed panel toward the facing component and across the access
slot of the facing component into a position overlapping the
slot-forming edge of the transparent sheet for obstructing the
access slot to prevent removal of the indicia strip therethrough,
the securing means being operable to prevent sufficient bodily
movement of the facing component away from the stationary component
to remove the facing component access slot from registration with
and obstruction by said fixed slot-obstructing side flange, and the
securing means being releasable for movement of the facing
component relative to the fixed component sufficiently to remove
the facing component access slot from being obstructed by said
fixed component fixed slot-obstructing side flange.
Description
A principal object of the present invention is to provide a
directory board in which indicia strips can be replaced quickly and
easily, yet the indicia board will be protected from tampering.
FIG. 1 is a front elevation of a directory board embodying the
invention with parts broken away.
FIG. 2 is a longitudinal section through such directory board taken
on line 2--2 of FIG. 1.
FIG. 3 is a transverse section through such directory board at the
location of line 3--3 in FIG. 1, and
FIG. 4 is a transverse section through such directory board along
line 4--4 of FIG. 1 with parts broken away.
FIG. 5 is a fragmentary longitudinal section through the directory
board of FIG. 1 taken along the upper portion of the board at the
location of line 2--2, and
FIG. 6 is a fragmentary longitudinal section through the lower
portion of the board at the location of line 6--6.
FIG. 7 is a fragmentary longitudinal section through the upper
portion of a directory board showing an alternative type of
construction.
FIG. 8 is a fragmentary longitudinal section through a portion of a
directory board such as shown in FIG. 1 comparable to FIG. 6, but
illustrating an alternative type of structure.
FIG. 9 is an exploded, fragmentary top perspective of the lower
right portion of the directory board shown in FIG. 1, with parts
broken away.
In the present invention an indicia strip is received in a groove
so that the outer face of the strip will be flush with the adjacent
structure. Such adjacent structure may be adjacent indicia strips.
The purpose of the strips may be to indicate the occupants of an
office building, for example.
In FIGS. 1 to 9, an assembly of indicia strips is incorporated in a
directory board. Such board is mounted on a stationary component
supporting panel 26, shown as a sheet of 5-ply plywood, which can
be attached to a suitable wall or stand. The facing component of
the directory board includes a backing panel 27, shown as a sheet
of 3-ply plywood, carrying a cover sheet 28 on which the indicia
strips 29 are mounted. Such indicia strips may, for example, bear
the names of people or companies occupying offices in a building,
or may bear designations of meetings or events accompanied by room
designations. The strips 29 may be in a single piece, or may be
composed of sections. One section, for example, could bear a name
and a second section could bear a room number. One section or
sections could bear the designation of a meeting or event and
another section or sections could bear a room number or name.
Because the plane of the directory board backing panel 27 will
usually be upright, the strip elements 29 should be adherent to the
cover sheet 28. The adherent effect between the indicia strip
elements and the directory board sheet can be produced in various
ways, such as by the cover sheet and/or the indicia strips having a
pressure-sensitive adhesive surface, or by the cover sheet and
indicia strips having surfaces of clinging material such as felt or
by the cover sheet and indicia strip elements having magnetic
attraction. The last mentioned type of adherent structure is
preferred.
For the indicia strip elements 29 to adhere to the cover sheet 28
by magnetic attraction, one of such elements will have the
characteristics of a magnet, and the other of such elements will be
made of magnetic material. It is preferred that the cover sheet 28
be magnetized and that the indicia strips 29 be of magnetic
material such as of steel. Indicia can be applied readily and
inexpensively to such strips by application of rub-off transfer
letters and numbers. Each of such strips can be removed or inserted
individually by lengthwise sliding movement as illustrated in FIG.
9. The entire cover sheet 28 can be covered by indicia strips
placed in edge-to-edge coplanar relationship as shown in FIG.
1.
It is important that the construction of the directory board
prevent tampering with the indicia strips 29. Consequently, the
slots between the upper and lower edges of the space overlying the
cover sheet 28 are closed. An angle strip having a wide face flange
30 and a narrower edge flange 31 extends across the top of the
board as shown in FIG. 2 with the flange 31 covering the upper edge
of the directory board backing panel 27 and the flange 30 overlying
the upper portion of the face of such panel. A lower angle strip
includes a wide flange 32 covering the lower margin of the
directory board panel 27 and a narrower flange 33 extending beneath
the lower edge of the directory board panel 27 and of the
supporting panel 26.
The face flanges 30 and 32 of the upper and lower angle members and
the cover sheet 28 between them are covered by an outer transparent
sheet 34 of glass or plastic. Such transparent sheet is secured in
place spaced outwardly from the backing panel 27 by unslotted heads
of securing screw assemblies 35. Each securing screw includes an
internally threaded shank integral with the head and extending
through an aperture in the facing sheet 34, a flange 30 or 32, and
the backing panel 27 behind such flange. An externally threaded
screw extends through the aperture in backing panel 27 and is
screwed into the internally threaded shank.
The facing component of the directory board is mounted removably on
the fixed component supporting panel 26 by attaching flanges 31 and
33 to such panel. A hole 36 in the upper flange 31 fits over the
end of a latch pin 37 protruding upward beyond the upper edge of
the supporting panel 26, as shown in FIGS. 2 and 5.
Correspondingly, a hole 38 in the lower flange 33 receives the
projecting end of a latch pin 39 protruding beyond the lower edge
of the supporting panel, as shown in FIGS. 6 and 8. One of these
pins, shown as being the lower pin 39, is retractable for
withdrawal of its end out of the flange hole so that the edge of
the directory board panel carrying such flange can be swung away
from the supporting panel.
As shown best in FIG. 6, the pin 39 has a head 39' which is backed
by a compression spring 40 received in a cavity 41 in the directory
board supporting panel 26. By endwise pressure on the projecting
end of pin 39, such pin can be moved lengthwise toward the recess
41 in opposition to the force of spring 40 sufficiently to retract
the projecting end of such pin from a hole 38 in the flange 33.
When the flange has thus been released, the entire facing component
of the directory board can be swung relative to the stationary
component in the manner indicated in FIG. 6 about its opposite end
until the flange 33 has cleared the supporting panel 26. The
directory board is next shifted edgewise as indicated in FIG. 5 to
withdraw the hole 36 in flange 31 from the projecting end of pin
37. The entire directory board facing component can then be removed
from the station component board-supporting panel 26 while the
latter remains in place.
In some instances, it may be preferred to make the stationary
component board-supporting panel 26 and the directory board facing
component inseparable. In such instances, the construction shown in
FIG. 7 can be used as an alternate to the construction of FIG. 5.
In this instance, instead of providing interengagable and separable
pin-and-socket means, such as the pin 37 and hole 36 shown in FIG.
5, the corresponding edges of the directory board facing component
backing panel 27 and the fixed component mounting panel 26 can be
inseparably but movably connected by a hinge 36' substituted for
the pin-and-socket type of connection. Such hinge may be a
continuous or piano type of hinge. Whatever its structure, it will
guide the directory board facing component backing panel 27 for
swinging relative to the fixed component supporting panel 26
without the two panels being separated.
It is preferred that the opposite edges of the directory board
supporting panel 26 extending perpendicular to the edges of such
panel covered by the directory board flanges 31 and 33 have
outwardly projecting flanges between which the directory board
backing panel 27 and transparent facing sheet 34 are received and
which are of a width sufficient to cover the thickness of the
directory board facing component. Such a flange 42 is shown in FIG.
9 as having a tongue or flange 43 perpendicular to it which is
secured in a marginal groove 43' extending along the edge of panel
26.
As shown best in FIG. 3, it is preferred that flanges 42 along the
edges of the supporting panel 26 be sufficiently wide to cover
virtually the entire thickness of the directory board assembly,
projecting outward across the access slot to the strip-receiving
cavity of the facing component between the backing panel 27 and the
transparent facing sheet 34. Such flange will therefore prevent
access to the cavity between the cover sheet 28 and the facing
sheet 34 in which the indicia strips 29 are received. Consequently,
these flanges constitute obstructing means which will prevent
removal of indicia strips.
When the directory board facing component panel 27 has been swung
away from the stationary component supporting panel 26 in the
manner indicated in FIGS. 5 to 9, as described above, however, the
slot between the edge portions of cover sheet 28 and the
transparent sheet 34 is accessible so that indicia strips 29 can be
shifted edgewise out of the space between the cover sheet 28 and
the transparent sheet 34 and replacement strips can be inserted
into such space as indicated in FIG. 9.
In the arrangement for mounting the transparent sheet 34 on the
directory board panel 27, by the use of screws as described in
connection with FIGS. 1 to 7 and 9, it is necessary to provide
holes in such transparent sheet. These holes form stress
concentration points which induce cracking of the sheet. The stress
concentration resulting from a hole for accommodating a securing
screw 35 may, for example, result in a corner of the transparent
sheet breaking off. Such stress concentration areas can be avoided
by utilizing a construction such as shown in FIG. 8, for example,
along opposite margins, such as the upper margin and lower margin
of the directory board.
Instead of utilizing only a simple angle marginal finishing strip
including a face flange forming a spacer between the directory
board facing component panel 27 and the transparent sheet 34, the
strip has an additional flange. In the strip of FIG. 8, the flange
33' adapted to cover corresponding edges of the directory board
panel 27 and the directory board stationary component supporting
panel 26 is extended outward into overlapping relationship with the
corresponding edge of the transparent sheet 34.
Three flanges 44, 45 and 46 project in generally parallel
relationship from the same side of flange 33' in place of the
single flange 32. The middle flange 44 corresponds to the single
flange 32 of the other type of marginal finishing strip described
and is engaged between the directory board panel 27 and the
transparent sheet 34 as shown in FIG. 8 to space them apart for
providing the space between them to accommodate the cover sheet 28
and the indicia strips 29.
The outer flange 45 is spaced from the central flange 44 a distance
substantially equal to the thickness of the transparent sheet 34
and the margin of such transparent sheet fits into the groove
between such flanges 44 and 45 to retain the transparent sheet in
place of the construction shown in FIGS. 1 to 7. The screws 35
serve the dual purpose of attaching the marginal finishing strips
32, 33 and the transparent sheet 34 to the directory panel board 27
because such screws 35 extend through both the finishing strip
flange 32 and the transparent sheet 34, as well as the panel 27, as
described above.
When the screws 35 are omitted, it is necessary to provide an
alternate construction for securing the marginal finishing strips
to the directory panel. The inner flange 46 serves this purpose by
being of a cross-section flared away from the flange 33' and
received in a complemental inwardly flared groove in the edge of
the directory board panel to form a dovetail connection. Such a
connection will prevent the finishing strip being pulled away from
the directory panel in a direction transversely of the length of
the strip without rupturing the panel.
* * * * *