U.S. patent number 3,722,922 [Application Number 05/018,038] was granted by the patent office on 1973-03-27 for poster board for accounting forms.
This patent grant is currently assigned to Litton Business Systems, Inc.. Invention is credited to Guillermo Perez.
United States Patent |
3,722,922 |
Perez |
March 27, 1973 |
POSTER BOARD FOR ACCOUNTING FORMS
Abstract
A folding poster board on which accounting forms are mounted,
including a clamping means for clamping the forms to the board and
a stripper plate for stripping forms from the board. A separate
operating plate is provided for operating the stripper plate. The
clamping member is mounted for rotation about a first axis, and the
stripping plate and operating plate are mounted for rotation about
a second axis parallel to and spaced from the first axis. Toggle
spring means holds the clamping member resiliently in its open and
closed positions. The operating plate for the stripper plate is
resiliently biased away from the latter towards a relative position
where further movement of the operating member will operate the
stripper member. The board comprises first and second board members
hinged together. When the second board member is folded over to
cover the first board member, the clamping member, when moved to
closed position, will engage the second board member and thereby
prevent the poster board from inadvertently coming open.
Inventors: |
Perez; Guillermo (Bloomfield,
NJ) |
Assignee: |
Litton Business Systems, Inc.
(Carlstadt, NJ)
|
Family
ID: |
21785927 |
Appl.
No.: |
05/018,038 |
Filed: |
March 10, 1970 |
Current U.S.
Class: |
462/79; 402/60;
402/70; 402/69; 402/80R |
Current CPC
Class: |
B41L
3/06 (20130101); B41L 3/04 (20130101); B43L
5/02 (20130101) |
Current International
Class: |
B43L
5/02 (20060101); B43L 5/00 (20060101); B41L
3/00 (20060101); B41L 3/04 (20060101); B41L
3/06 (20060101); B41l 003/04 (); B41l 003/06 () |
Field of
Search: |
;282/29R,29A,29B
;281/29,45 ;402/69,68,74,71,80 ;40/104.13 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
1,186,877 |
|
Feb 1965 |
|
DT |
|
886,047 |
|
Jan 1962 |
|
GB |
|
Primary Examiner: Schnall; Jerome
Claims
I claim:
1. A poster board comprising:
board means including at least a first horizontal board member for
supporting at least one accounting form, said accounting form being
provided with a row of preformed mounting holes;
mounting means on said board member for mounting said form thereto,
said mounting means comprising a row of mounting pins rigidly
secured to and fast with said board member, and adapted to extend
through said holes in said form to hold said form on said
board;
means mounted on said board member and defining first and second
axes of rotation extending in generally the same direction as said
row of pins and horizontally spaced from each other, said second
axis being between said first axis and said row of pins;
clamping means for clamping said form to said board member, said
clamping means being mounted for rotation about said first axis in
one direction to an open, non-clamping position and in the opposite
direction to a closed, clamping position;
a stripper member rotatably mounted for operating movement about
said second axis from a given position abutting the surface of said
board member and underlying said form when the latter is mounted on
said board member, to another position and effective to strip said
overlying form from said pins in the course of said movement from
said given position to said another position;
a manually engageable and operable operating member for operating
said stripper means independently of the movement of said clamping
means when said clamping means is in its open position, said
operating member being mounted for rotation about said second axis
and being rotatable relative to said stripper member about said
second axis;
means operable, upon rotation of said operating member to a given
position away from said stripper member, to cause further movement
of said operating member in the same direction to cause operation
of said stripper member, said last-mentioned means comprising
cooperable interengageable portions of said stripper member and
said operating member;
spring means for resiliently urging said operating member to move
to said given position relative to said stripper member;
said clamping means when in its closed position holding said
operating member downward toward said stripping member against the
resilient urging of said spring means in the opposite
direction;
said clamping means when in closed position overlying and shielding
said stripper and operating members.
2. The combination according to claim 1, wherein:
said clamping means includes means defining an external elongated
finger-receiving recess, said recess including a lateral wall
portion at least a portion of which comprises an oblique upwardly
and laterally inwardly facing surface disposed on the opposite side
of said first axis of rotation from the second axis of rotation,
the arrangement being such that when said oblique surface is
manually pushed against, there will be provided a force component
directed to cause movement of said clamping means about said first
axis from closed to open position.
Description
BACKGROUND OF THE INVENTION
This invention pertains to poster boards of the type used in manual
posting operations.
Boards of this type are well known in the prior art. In one form of
such board, there is provided a stripper member for lifting forms
from the mounting posts on which the forms are held on the board;
and a clamping member for holding the forms securely on the board.
The clamping member and the stripper member are journaled for
rotation about the same axis. When the clamping member is swung
open to a predetermined angular position relative to the stripper
member, it engages portions of the stripper member whereby further
outward movement of the clamping member causes the stripper member
to operate. Such an arrangement, where the clamping member and the
stripper member rotate about the same axis, and where the stripper
member is operated by the opening movement of the clamping member,
has certain disadvantages.
For one thing, after the clamping member has been opened beyond a
given position, invariably any further opening movement of the
clamping member will cause the stripping member to be operated,
whether this is desired or not. Thus, the operator may
inadvertently strip forms from the poster board even though this
was not intended.
The foregoing and other disadvantages of prior art devices are
avoided by the present invention.
SUMMARY OF THE INVENTION
In accordance with the present invention, there is provided a
poster board having a clamping member for clamping the forms to the
board, a stripper member for stripping the forms from the board and
a separate operating member for operating the stripper member. The
operating member operates the stripping member to perform its
stripping function entirely independently of the opening movement
of the clamping member. The clamping member is mounted for movement
about a first axis of rotation, and the stripper and operating
members are mounted for rotation about a second axis of rotation
separate from the first axis of rotation.
In the preferred form of the invention disclosed herein, toggle
spring means are provided to resiliently maintain the clamping
member in its open and closed positions. A spring biases the
stripper operating member to move to a position where it stands at
a maximum angle relative to the stripper member. In this relative
position of these two members, any further movement of the
operating member away from the stripper member will cause the
stripper member to move with it and thereby perform its stripping
function.
In the closed position of the clamping member, its undersurface
holds the stripper operating member downwardly against the bias of
the last-mentioned spring. When the clamping member is opened, that
spring raises the stripper operating member to substantially
vertical position, where it is readily accessible to be manually
engaged to cause the stripper member to operate.
As an additional feature of the invention, when the folding poster
board is folded over on itself to closed position, the clamping
member when swung downwardly to its closed position will engage the
folded-over board member and thereby hold the poster board in
closed position.
As a further feature, the exterior of the clamping plate is so
configured as to facilitate manual opening of the plate with the
pressure of one finger.
It is a major object of this invention to provide a novel poster
board.
It is a further object to provide a poster board having a stripper
means and clamping plate, wherein the stripper means is operated
independently of the opening of the clamping plate.
It is a further object to provide a poster board having a stripper
means, a clamping plate, and a separate means for operating the
stripper means independently of the opening of the clamping
plate.
It is a further object to provide a poster board having a stripper
means and clamping plate mounted for rotation about separate and
independent axes.
It is a further object to provide a poster board having a clamping
plate configured so as to facilitate manual opening of the
plate.
It is a further object to provide a folding poster board having a
clamping plate which is effective to hold the poster board in
closed, folded condition.
The above and other objects, advantages, and features of the
invention will become apparent to those of ordinary skill in the
art from a reading of the following detailed description of a
preferred embodiment of the invention.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a top plan view of a folding poster board constructed in
accordance with the invention, the board being shown in open
position and with the accounting forms mounted thereon.
FIG. 2 is a front elevational view of the poster board in closed
position.
FIG. 3 is a fragmentary enlarged detail sectional view taken on
line III--III of FIG. 1.
FIG. 4 is a view similar to FIG. 3, but taken on line IV--IV of
FIG. 1, the poster board being shown in folded-over, closed
condition.
FIG. 5 is a view similar to FIG. 3, but with the clamping plate in
open position.
FIG. 6 is a view similar to FIG. 4, the stripper plate having been
operated to remove forms from the mounting posts.
FIG. 7 is a fragmentary top plan view of the poster board partially
in section, taken on line VII--VII of FIG. 5.
FIG. 8 is a view similar to FIG. 3 taken on line VIII--VIII of FIG.
1.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the drawings, the overall folding poster board 1
is best seen in FIGS. 1 and 2. FIG. 1 shows the board open; FIG. 2
shows it closed. Board 1 includes two flat board members 2 and 3 on
which accounting forms are adapted to be supported for conventional
manual posting operations. Board member 3 is adapted to be pivoted
inwardly along a hinge line 4 between the two board members, so as
to overlie board member 1 when the poster board is not being
used.
A thin cover sheet 5, which may be a leather-simulating vinyl
plastic film of any suitable color, is provided on the outer (lower
in FIG. 1) sides of the board members. Interposed between the board
members and sheet 5 are relatively thick stuffer sheets 6, 7 of any
desired material such as cardboard. Sheet 5 is bonded to the faces
of board members 2 and 3 adjacent the entire peripheral top and
bottom edges and both side edges of both board members.
The portion of sheet 5 which bridges the adjacent confronting edge
portions of the two spaced board members provides the hinge line 4
about which board member 3 is rotated between the open position of
FIG. 1 and the closed position of FIG. 2.
Disposed beneath and lying along the entire lower left side edge
portion of board member 2 is an elongated bar 10, the two being
secured together by a fore and aft extending row of pins 11. The
upper portions of pins 11 are enlarged in diameter and terminate in
uppermost conical portions, to form a row of mounting posts 12 upon
which accounting forms having correspondingly spaced mounting
perforations are mounted. Such forms typically comprise a lowermost
journal sheet 13 and a set of shingled overlying item sheets 14,
e.g. checks, to be posted to the journal sheet. It will of course
be understood that many different types of accounting forms can be
used with the present poster board.
The aforementioned cover sheet 5 extends to the left to cover the
right side edge and underside of bar 10, to which it is bonded.
The poster board 1 includes a rotatable stripper plate 15 which
underlies the left side edge portion of the item sheets or forms 14
mounted on posts 12. A rotatably manual operating member 16 is
provided for the stripper plate. When the operating member 16 is
operated, it causes the stripper plate to rotate upwardly to strip
the sheets off the posts 12. There is also provided a clamping
plate 17, which is rotatable between an effective closed position
where it engages the forms to hold them securely on the poster
board (FIG. 3) and an open ineffective position (FIG. 5). The
details of construction of the foregoing parts will now be
described.
Two longitudinally spaced identical mounting brackets 20, 21 are
respectively rigidly secured to bar 10 at the upper and lower end
portions of the latter. As best seen in FIGS. 3, 5, and 6, the
lower end portions of the brackets are disposed in related
transverse slots 22, 23 of bar 10, and are rigidly secured to the
bar by short longitudinal pins 24 and 25. The portions of brackets
20, 21 that extend laterally outwardly and upwardly out of the
slots 22, 23 mount rotational axis-defining means for the
aforementioned stripper plate 15 and clamping plate 17. The hinge
axis for the stripper plate 15 is provided or defined by an
elongated longitudinally extending shaft 26 supported at its
opposite ends in brackets 20 and 21. Stripper plate 15, and its
operating plate 16, are of pianohinge type of construction wherein
the stripper plate is one leaf of the hinge and the operating plate
is the other leaf. Both plates or leaves are provided respectively
with a series of alternately disposed turned-over loop portions 30
and 31 (FIG. 7) through which the hinge shaft 26 extends. As seen
in FIG. 7, the stripper assembly, comprising stripper plate 15 and
operating plate 16, extends substantially the full fore and aft
length of the poster board, and just fits between the top and
bottom mounting brackets 21 and 20. As seen in this same FIGURE,
the hinge shaft 26 is slightly longer than the stripper and
operating plate elements, and is supported at its free outer end
portions in said brackets.
What would have been the approximately central or nearly so one of
the shaft encircling turned-over loop portions 31 of stripper plate
15 is omitted. In its place, there is provided a light coiled
torsion spring 32 encircling shaft 26. Of course, spring 32 can be
provided wherever desired along the longitudinal extent of the
stripper plate assembly. The opposite ends of spring 32
respectively engage the stripper and operating plates 15 and 16 to
lightly bias these members away from each other. The maximum
angular distance that these two elements can rotate apart from each
other is approximately 95.degree. (FIGS. 5,6) as limited by
mutually cooperable shoulders 33, 34 (FIGS. 4, 6) of the respective
loop portions 30 and 31 coming into abutting contact with each
other.
The outer free edge portion 35 of operating plate 16 is offset by
being bent slightly inwardly as shown. As will be described in
greater detail subsequently, the stripper plate 15 is operated by
pushing to the left on the inside of the operating plate 16. The
just-described offset 35 makes it easier for the operator to grasp
the operating plate and also makes it less likely that her fingers
will slip off the plate. As will also be described, the outer
surface of this inwardly offset portion 35 cooperates with the
inside concave face of the clamping plate 17 in the nature of a cam
surface so that as the latter is swung shut from its FIG. 5
position, when it engages this offset the closing of the clamping
plate will be effective to push the operating plate 16 down.
The clamping plate 17 will now be described in detail. It is of the
cross-section shown in FIG. 8 throughout its entire length, except
as described subsequently. It includes on its outer side a shallow
arcuate longitudinal groove or recess 36 and a very shallow square
cut longitudinal recess or groove 37. The arcuate groove 36 is
adapted to receive the finger or fingers of an operator for manual
opening and closing of the clamp plate. A lined index strip 40 is
pasted in recess 37. Strip 40 contains line-identifying sequential
numbering corresponding in spacing to the lines of the accounting
forms which will be mounted on the posts 12. This is best seen in
FIG. 1.
The upwardly and outwardly extending portions of each previously
described mounting bracket 20, 21 extends into related narrow slots
41, 42 (FIGS. 1, 7) provided in the clamping plate 17. Two aligned
short pins 43, 44 are press-fitted in passages extending
longitudinally inwardly from the fore and aft ends of the clamping
plate (FIG. 7). Each of these pins extends through a corresponding
aperture of the respective adjacent mounting brackets 20 and 21
with a sliding fit, whereby the pins and therefore the clamping
plate are rotatably supported on the mounting brackets.
The pins 43, 44 rotatably supported in brackets 20, 21 thus define
an axis of rotation for the clamping plate which is separate and
spaced from the axis of rotation defined by shaft 26 for stripper
plate 15 and stripper operating plate 16. These two longitudinally
extending axes are substantially parallel.
The clamping plate is rotatable between the maximum open
counterclockwise position of FIGS. 5 and 6, as limited by the lower
rear edge 45 of the plate abutting the adjacent portion 46 of bar
10; and the effective closed clockwise clamping position of FIGS. 3
and 4. To provide better clamping contact between clamping plate 17
and the forms clamped thereby, the plate is provided along its
depending righthand free end portion 47 with a downwardly opening
slot 50 in which is mounted the upper side edge portion of a
downwardly opening channel-shaped clamping strip 51 of rubber or
other elastomeric material.
The clamping plate is resiliently held in its open and closed
positions by upper and lower toggle or off-center coil springs 52
and 53 respectively disposed in pairs of aligned transverse slots
54, 55 and 56, 57 of bar 10 and clamping plate 17 (FIGS. 4, 6, and
7). The right-hand ends of the toggle springs are hooked over the
aforedescribed longitudinal pins 24 which respectively extend
through slots 55 and 57 of the bar. It will be recalled that pins
24 together with pins 25, serve to mount brackets 20 and 21 to the
bar 10. The left hand ends of the toggle springs 52, 53 are hooked
over short longitudinal pins 60 which are press-fitted into
clamping plate 17 from both ends thereof and extend through the
slots 54 and 56 of this plate (FIG. 7).
As shown in FIG. 4, it will be noted that in the closed position of
the poster board, i.e., when right hand board member 3 is folded
inwardly to lie on the left hand board member 2, the clamping plate
17 is of sufficient width so that when it is closed, the clamping
strip 51 thereof bears against board member 3. Hence, in this
position of the parts, the clamping plate is effective to hold the
poster board in closed, folded condition, and will prevent the
board from inadvertently flying open and possible loss of the forms
which may be mounted on the board at that time.
The opposite longitudinal ends of the clamping plate 17 are covered
by suitable plastic end caps 59a and 59b secured to the clamping
plate in any suitable fashion. The opposite longitudinal ends of
bar 10 are provided with similar end caps 60a and 60b.
The poster board of the present invention is used as follows.
Assuming that there are no forms mounted on the board, the clamping
plate 17 is manually swung to open position, where it is
resiliently held by the toggle springs 52, 53 (FIG. 5). The
stripper operating plate 16 is pushed to the left to swing, through
the abutting shoulders 33, 34, the stripper plate 15 upwardly to
the position shown in FIG. 6. The journal sheet 13 is then mounted
over posts 12 and is pressed downwardly to lie flat against the
upper surface of board members 2 and 3. The stripper plate 15 is
then pushed downwardly to its horizontal position of FIG. 5
abutting the upper face of journal sheet 13, rotating the operating
plate 16 with it through cooperable shoulders 33, 34. As described
earlier, the stripper operating plate 16 is at all times under the
counterclockwise bias of light spring 32 and therefore in both the
FIG. 5 and 6 positions will stand at its maximum possible angular
displacement from the stripper plate which, as stated before, is
about 95.degree..
It should be noted at this juncture that, as best seen in FIG. 7,
the right hand side edge of stripper plate 15 extends a short
distance to the right beyond the leftmost sides of the forms 13, 14
and mounting posts 12. Therefore, to permit the stripper plate to
swing downwardly past posts 12, it is provided along its right side
edge with arcuate clearance cut-outs 61 for said posts 12. Now, the
item forms 14 (e.g., checks to be posted to journal sheet 13) are
mounted on posts 12 over the stripper plate 15. The position of the
various components is now as shown in FIG. 5. After the item forms
14 have been mounted on the posts 12, the clamping plate 17 --
which is still in its counterclockwise open position -- is manually
pushed downwardly to the right. In the course of this movement,
toggle springs 52 and 53 will be moved through their center
position and will snap to the other side thereof, in turn pulling
the clamping plate down to its closed position of FIG. 3. In this
position of the clamping plate, its clamping strip 51 firmly
presses down on the forms mounted on the board, under the bias of
the toggle springs.
In the course of the downward closing movement of the clamping
plate 17, its concave under surface 62 will engage the laterally
offset portion 35 of the stripper operating plate 16 and push the
latter down to the position shown in FIG. 3. In the course of this
downward movement, the clamping plate will first engage the
operating plate 16 just before the vertex or base 63 of concave
surface 62. Then, as the downward movement continues, because of
the spaced axes of rotation of the two members the contact area
between them will move towards vertex 63 and will ultimately
terminate on the other side thereof as shown in FIG. 3. The offset
35 of operating plate 16 and the concave undersurface 62 of the
clamping plate 17 are essentially so contoured as to provide
cooperable camming surfaces. At all times during the downward
closing movement of the clamping plate, these camming surfaces will
cause a significant amount of the force transmitted to the
operating plate 16 by the clamping plate 17 to be transmitted
essentially tangentially to the current angular position of the
operating plate 16 so as to apply a rotating torque thereto, with a
minimum of the transmitted force being applied radially towards
plate 16's axis of rotation, which might otherwise cause jamming of
the parts. The final closed position of the parts is as shown in
FIG. 3, with the clamping strip 51 of the clamping plate 17 firmly
pressing the forms down on the board to prevent their inadvertent
dislodgment from the mounting posts 12.
It it is desired to temporarily discontinue using the board but
leave the forms thereon, the clamping plate is opened to its FIG. 5
position and board member 3 swung inwardly to overlie board member
2, as shown in FIGS. 2 and 4. The clamping plate is then swung
downwardly to its closed, clamping position. As mentioned earlier,
the clamping plate extends sufficiently far to the right so that
when it is in closed position, its clamping strip 51 will bear
against the now-topmost surface of the folded-in board member 3, as
shown in FIG. 4. Thus, the clamping plate is effective to keep the
board in closed position and will prevent it from inadvertently
flying open when the closed posterboard is being handled, either
with or without forms mounted in it.
When it is desired to remove the checks or other forms 14 mounted
on posts 12, the clamping plate 17 is swung to its open position.
In the course of this movement, the stripper operating plate 16
will be rotated by light coil spring 32 to the plate's upright
position of FIG. 5. It will be recalled that this relative angular
positioning of the stripper plate 15 and the stripper operating
plate 16 is determined by the abutting shoulders 33, 34 of the
respective looped over portions 30, 31 of these two plates coming
into abutting contact with each other. The stripper operating plate
16 is now manually pushed to the left, i.e., to rotate
counterclockwise about shaft 26. Through the aforementioned
abutting shoulders 33, 34 the leftward movement of the operating
plate will cause corresponding rotary movement of the stripper
plate 15, as shown in FIG. 6, about the same shaft 26. As the
stripper plate is moving upwardly from its substantially horizontal
position of FIGS. 3 and 4, it will lift the overlying forms 14 off
the mounting posts 12, whereby the forms can now easily be removed
from the board.
The opening of the closed clamping plate 17 is facilitated by the
plate's longitudinal arcuate groove 36. The left thumb of the
operator need merely be laid in this groove and lateral pressure
applied by the thumb downwardly and to the left against the left
hand side wall portion 64 of this groove, in the general direction
of the arrow shown in FIG. 3. The resulting counterclockwise torque
on the clamping plate will be sufficient to open the plate against
the bias of the toggle springs 52, 53.
While there has been shown and described a specific preferred
embodiment of the invention, it will be understood that the
invention and its principles and features can be practiced in
numerous modified forms. Accordingly, it is intended that the
preceding disclosure of a specific embodiment of the invention is
intended to be illustrative only, and not in any way limitative of
the following claims.
* * * * *