DETAILED DESCRIPTION OF THE INVENTION
FIELD OF THE INVENTION
[0001] The present invention relates to a paper retainer, and more particularly to a paper
retainer capable of binding sheets of paper, which are inserted through binding legs,
in a condition free from fluttering.
RELATED ART
[0002] In the German document DE 2 301 191 a clamping rail for a letter filer is revealed.
The invention therein relates to a plastic clamping rail for holding down records
in mechanisms of letter files in which the clamping effect in the line-up pins is
achieved by two holes of different sizes inclined towards each other. The clamping
rail is asymmetrical and has an aesthetically unappealing form. Due to its asymmetric
nature it is difficult to produce. Further, it can only be used in one direction,
that means that the turning over of the clamping rail in such a way that the lower
side faces upside is not possible. If one would turn over the clamping rail an efficient
down-hauling would not be possible. Further a safe positioning of the plastic clamping
rail in the clamping position is not possible, as the two flanges gripping the rails
exert forces on the plastic clamping rail trying to force it out of the holding position.
No flange in direction against the combined forces is revealed.
[0003] Heretofore, ring files or binders have been widely employed which can bind sheets
of paper together by inserting binding legs provided on a cover member through binding
holes formed in the sheets of paper. When the number of sheets of paper to be bound
is relatively small, there is a fear that the sheets of paper may flutter within a
file and may be damaged. For that reason, a paper retainer 50, shown in Fig. 18, capable
of pressing a binding area of sheets of paper against the inner surface of a file
cover member and holding the sheets of paper in a tightly bound state has been proposed.
[0004] The paper retainer 50 is constructed of a plate-like member 52 having two elongate
holes 51 through which two binding legs 60 are inserted respectively. Each of the
elongate holes 51 has a first hole 53 that is extended in the lengthwise direction
of the plate-like member 52 and has a width larger than a stem diameter of the binding
leg 60, and a second hole 54 that is extended from the first hole 53 and has a width
slightly smaller than the stem diameter of the binding leg 60, the first and second
holes 53, 54 being formed continuously. The sheets of paper bound by the binding legs
60 are tightly gripped using the paper retainer 50 between it and the cover member
(not shown) as follows. First, the paper retainer 50 is inserted through the binding
legs and is pressed against the sheets of paper in a direction perpendicular to the
paper surface. Then, the paper retainer 50 is slid from a condition shown in Fig.
8(A) in a direction of arrow A to a position shown in Fig. 8(B). In the position shown
in Fig. 8(B), movement of the paper retainer 50 is restricted due to correlation between
the outer diameter of the binding leg 60 and the width of the second hole 54. As a
result, the sheets of paper are prevented from fluttering in the binding area.
[0005] With the above-described construction of the paper retainer 50, however, users must
apply forces in two directions when tightly gripping sheets of paper. More specifically,
users must apply a pressing force in the direction perpendicular to the paper surface
and a sliding force in a direction along a flat surface of the paper retainer 50.
This results in a problem of making the binding operation troublesome or difficult.
Another problem is that, because forces must be applied in the two directions at the
same time, the pressing force tends to become relatively weak and the sheets of paper
cannot be sometimes tightly gripped between the paper retainer 50 and the cover member.
SUMMARY OF THE INVENTION
[0006] The present invention has been accomplished in view of the problems set forth above,
and an object of the invention is to provide a paper retainer which gives users a
simple operating feel by making a direction to apply a pressing force coincident with
a direction to apply a gripping force, and which can surely maintain sheets of paper
in a gripped posture.
[0007] To achieve the above object, according to the present invention, in a paper retainer
fitted to binding legs erecting from a predetermined base surface and being able to
grip sheets of paper between the paper retainer and the base surface,
the paper retainer includes a body portion having holes through which the binding
legs can be inserted, and
the holes are formed such that, when the body portion is pressed toward the base
surface and displaced through a predetermined extent, the paper retainer is held in
a stationary state by the binding legs. With this arrangement, sheets of paper can
be gripped just by simply pressing the body portion without troublesome operation
of applying forces in two directions as required conventionally.
[0008] Also, according to the present invention, in a paper retainer fitted to binding legs
erecting from a predetermined base surface and being able to grip sheets of paper
between the paper retainer and the base surface,
the paper retainer includes a body portion having holes through which the binding
legs can be inserted,
each of the holes is made up of a first opening area through which the binding
leg can be loosely inserted, and a second opening area formed continuously to the
first opening area and being able to clamp the binding leg in a radial direction,
and
when the body portion is pressed toward the base surface with the binding legs
inserted through the first opening areas, the binding legs are forced to position
in the second opening areas and the paper retainer is fixedly held while the second
opening areas are clamping the binding legs. With this arrangement, by operating the
body portion to be pressed against the top surface of sheets of paper in a condition
where the binding legs are inserted through the first opening areas, the binding legs
can be moved into the second opening areas without difficulty, which are formed continuously
to the first opening areas. On this occasion, since movement of the body portion is
restricted by a reaction developed upon the second opening areas applying clamping
forces to the binding legs, users can simply and quickly perform the operation of
gripping the sheets of paper. Further, since it is only required to apply a force
in the direction of gripping the sheets of paper, the problem in operation can also
be overcome.
[0009] In the present invention, preferably, the body portion has a shape extending in a
lengthwise direction of the paper retainer, the first opening area is extended in
an oblique direction with respect to an imaginary plane extending in a direction of
short width of the body portion, the first opening area penetrating the body portion
to be open at both opposite sides thereof, and the second opening area is extended
in a direction substantially perpendicular to the imaginary plane, the second opening
area penetrating the body portion to be open at both opposite sides thereof. With
this arrangement, when the binding legs are inserted through the first opening areas,
the body portion takes a tilted posture, allowing users to easily apply a pressing
force for moving the binding legs to position in the second opening areas.
[0010] Preferably, the body portion is formed into a shape having a curved outer periphery
at least in areas where the holes are formed, and the body portion includes an operating
tab portion for moving the body portion such that the binding legs are moved from
the first opening areas to the second opening areas. With this arrangement, users
can smoothly perform the operation of moving the body portion downward while rotating
it, and can be given a lighter operating feel because of the presence of an area to
which the pressing force is to be applied. On the other hand, when detaching the paper
retainer, it is only required to put a finger under the operating tab portion and
lifting it upward. The burden imposed on users in the operation of attaching and detaching
the paper retainer can therefore be reduced.
[0011] Alternatively, the body portion may have an elongated elliptical contour lying over
the base surface in cross-section at least in areas where the holes are formed, and
the body portion may include an operating tab portion for moving the body portion
such that the binding legs are moved from the first opening areas to the second opening
areas.
[0012] Further, in addition to the above arrangement, deformation allowances are preferably
formed in the body portion at positions adjacent to the holes for allowing the second
opening areas to slightly spread when the binding legs are moved from the first opening
areas to the second opening areas. With this arrangement, when the binding legs are
moved to position in the second opening areas, elastic deformation of the second opening
areas is allowed without undue strains to give users a lighter operating feel, while
stronger clamping forces for the binding legs can be developed.
[0013] Preferably, rotation position elevating means for causing the body portion to rotate
at an elevated level is formed on the side of the body portion opposed to the operating
tab portion. With this arrangement, in the case where a ring-shaped portion is formed
around base ends of the binding legs as a result from, for example, caulking them,
the paper retainer can be fitted in a position just above the ring-shaped portion
out of interference with the same, and a fear of damaging the opening areas can be
avoided. Further, a paper retainer having versatility can be provided which is applicable
to any binder types regardless of shapes of the base ends of the binding legs.
[0014] Additionally, the rotation position elevating means is formed by a lug member projecting
in a direction substantially perpendicular to the lengthwise direction of the body
portion, and the lug member has a distal end positioned to contact the base surface
in a condition where the binding legs locate in the first opening areas, the distal
end of the lug member forming a center of rotation to elevate the body portion when
the binding legs inserted through the first opening areas are moved into the second
opening areas. With this arrangement, just by applying the pressing force to the operating
tab portion, the body portion is automatically caused to rotate at a position elevated
along axes of the binding legs. As a result, the paper retainer can be fitted in the
elevated position with a very simple construction.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Fig. 1 is a schematic perspective view of a ring notebook using a paper retainer
according to a first embodiment, Fig. 2 is a schematic perspective view of the paper
retainer, Fig. 3(A) is an enlarged left side view of Fig. 2, Fig. 3(B) is an enlarged
sectional view taken along line A - A in Fig. 2, viewing in a direction of arrows,
Fig. 4(A) is a plan view of the paper retainer in a condition where an operating tab
portion is in a posture facing upward, Fig. 4(B) is a plan view of the paper retainer
in a condition where the operating tab portion is in a horizontal posture, Fig. 5(A)
is a partial cross-sectional view of the ring notebook, showing an initial operating
state of the paper retainer, Fig. 5(B) is a partial cross-sectional view of the ring
notebook, showing a tightly gripping state of the paper retainer, Fig. 6 is a plan
view of a paper retainer according to a second embodiment of the present invention,
Fig. 7 is a front view of Fig. 6, Fig. 8 is a rear view of Fig. 6, Fig. 9 is an enlarged
sectional view taken along line B - B in Fig. 6, viewing in a direction of arrows,
Fig. 10 is an enlarged sectional view taken along line C - C in Fig. 6, viewing in
a direction of arrows, Fig. 11 is an enlarged sectional view taken along line D -
D in Fig. 6, viewing in a direction of arrows, Fig. 12 is an enlarged sectional view
taken along line E - E in Fig. 6, viewing in a direction of arrows, Fig. 13 is an
enlarged sectional view taken along line F - F in Fig. 6, viewing in a direction of
arrows, Fig. 14 is a partial cross-sectional view of a ring notebook, showing an initial
fitting operation state of the paper retainer according to the second embodiment,
Fig. 15 is a partial cross-sectional view of the ring notebook, showing a condition
immediately before applying a pressing force to the paper retainer according to the
second embodiment, Fig. 16 is an enlarged sectional view of a principal part of Fig.
15, Fig. 17 is a partial cross-sectional view of the ring notebook, showing a condition
where sheets of paper are tightly gripped by the paper retainer according to the second
embodiment, and Figs. 18(A) and 18(B) are plan views of a conventional paper retainer,
showing conditions in use at successive steps.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0016] Embodiments of the present invention will be described below with reference to the
drawings.
[FIRST EMBODIMENT]
[0017] Fig. 1 is a schematic perspective view of a ring file to which a paper retainer according
to a first embodiment of the present invention is applied. Referring to Fig. 1, a
ring file 10 comprises a cover member 14 made up of a front cover 12 and a rear cover
13 which are connected to lie respectively on the left and right sides through a backbone
11, a base 15 arranged on an inner surface of the rear cover 13 on the side close
to the backbone 11, and a binder 17 supported by the base 15 and having binding legs
16 each capable of jointing and separating at an upper position to close and open
a loop. Sheets of paper P are bound by being inserted through the binding legs 16,
and a paper retainer 20 is fitted to the binding legs 16 in contact with a top surface
of the sheets of paper P.
[0018] The paper retainer 20 is, though not particularly limited, formed of a one-piece
molding produced using a resin, such as polyacetal (POM), polystyrene or ABS, as a
molding material in this embodiment. As shown in Figs. 2 and 3, the paper retainer
20 comprises a body portion 30 that is in the form of a bar as a whole, has an elongated
elliptical contour lying over the sheets of paper P in cross-section and has a curved
outer periphery, and an operating tab portion 31 provided on the side of an upper
surface 30A of the body portion 30. Holes 32, 32 allowing insertion of the binding
legs 16, 16 are formed in positions near both lengthwise ends of the body portion
30, respectively.
[0019] The operating tab portion 31 comprises, as shown in Fig. 3, a pressing surface 31A
projecting from a top position of the upper surface 30A of the body portion 30 substantially
horizontally and extending substantially parallel to the direction of a long axis
of the elongated ellipse, and a finger picking-up surface 31B extending from an outer
edge of the pressing surface 31A obliquely toward a lower right part of the body portion
30 in Fig. 3.
[0020] The hole 32 is, though actually formed by molding with a specific mold, formed into
a shape resulted as if the body portion 30 is drilled in two directions to provide
through holes having axes to cross each other. More specifically, as shown in Fig.
3(B), the hole 32 is made up of a first opening area 33 which is extended in an oblique
direction C1 rising toward the right with respect to a maximum diameter D of the body
portion 30 corresponding to a direction substantially parallel to an imaginary horizontal
plane, the first opening area 33 penetrating the body portion 30 to be open at both
lateral sides thereof, and a second opening area 34 which is extended in a direction
substantially perpendicular to the imaginary horizontal plane, i.e., a vertical direction
C2 substantially perpendicular to the direction of the maximum diameter D, the second
opening area 34 penetrating the body portion 30 to be open at the upper and lower
sides thereof. Looking at the first and second opening areas 33, 34 from above in
Fig. 2, therefore, these areas appear like a gourd in shape.
[0021] Next, dimensional conditions of the binding legs 16 and the first and second opening
areas 33, 34 will be described with reference to Figs. 4(A) and 4(B). Fig. 4(A) is
a plan view showing an initial condition where the paper retainer 20 is inserted through
the binding legs 16, and Fig. 4(B) is a plan view showing a condition where the sheets
of paper P are tightly gripped by the paper retainer 20. Note that Figs. 4(A) and
4(B) represent the paper retainer 20 shown in Figs. 5(A) and 5(B) and viewed from
above, respectively.
[0022] Referring to Fig. 4, an inner diameter D1 of the first opening area 33 is set to
be greater than an outer diameter D2 of the binding leg 16, while an inner diameter
D3 of the second opening area 34 is set to be slightly smaller than the outer diameter
D2. By so setting, the first opening area 33 is formed so as to freely fit with the
binding leg 16. On the other hand, when the binding leg 16 is forcibly pushed to come
into the second opening area 34, the second opening area 34 is elastically deformed
to enlarge its own opening area to some extent, and at the same time exerts an appropriate
clamping force to the binding leg 16. In order to allow elastic deformation of the
second opening area 34 without difficulty, slot holes 35, 35 are formed to serve as
deformation allowances. The slot holes 35, 35 are formed in positions that locate
on both sides of each of the holes 32, 32 at the center and are adjacent to it. The
slot holes 35, 35 are substantially in the form of elongate holes extending in the
direction of short width of the body portion 30.
[0023] With the above construction, as shown in Fig. 5, the paper retainer 20 of this embodiment
can tightly grip the sheets of paper P together in a binding area under cooperation
with the base 15 by pressing the body portion 30 against the sheets of paper P in
a condition where the holes 32 are inserted through the binding legs 16. More specifically,
since the first opening area 33 is formed to extend in the oblique direction as described
above, the paper retainer 20 is first arranged on the sheets of paper P in a tilted
state, i.e., in a posture of the operating tab portion 31 facing upward. Then, the
pressing surface 31A is pressed so that the body portion 30 is rotated in a direction
of arrow B in Fig. 5(A) to take a position shown in Fig. 5(B). The binding legs 16
are thereby forcibly moved into the second opening areas 34, causing clamping forces
to act on the binding legs in the radial direction. As a result, subsequent movement
of the paper retainer 20 is restricted and the sheets of paper P can be maintained
in a tightly gripped state in the binding area. In the above operation, since the
paper retainer 20 is arranged on the sheets of paper P in the tilted state, the direction
to apply a pressing force is applied and the direction to apply a tightly gripping
force are substantially coincident with each other. Accordingly, the paper retainer
20 can be surely maintained in a posture tightly gripping the sheets of paper P, while
users can be given a simple operating feel.
[0024] The operation of releasing the sheets of paper P from the tightly gripped state is
as follows. By rotating the paper retainer 20 in a direction opposed to the direction
of arrow B, i.e., by putting a finger under the finger picking-up surface 31B and
lifting the operating tab portion 31 upward, the binding legs 16 are dislodged from
the second opening areas 34 to move into the first opening areas 33, whereupon the
sheets of paper P can be released from the tightly gripped state.
[0025] Thus, the first embodiment described above can provide such an advantage that the
operation of tightly gripping and releasing the sheets of paper P can be very simply
and quickly effected just by rotating the paper retainer 20. In addition, since the
tightly gripping operating is achieved by rotating the body portion 30 only in the
same direction as pressing the sheets of paper P downward, the sheets of paper P can
be tightly gripped while being surely pressed downward. The paper retainer 20 is therefore
free from a fitting failure.
[SECOND EMBODIMENT]
[0026] A second embodiment of the present invention will be next described with reference
to Figs. 6 to 17. In the following description, the same or equivalent components
to those in the above first embodiment are denoted by the same numerals as needed,
and explanation of those components is omitted or simplified.
[0027] As shown in Fig. 16 in enlarged scale, this second embodiment is featured in that
a paper retainer 20 is also applicable to a binder 17 of the type wherein a base end
16A of a binding leg 16 is fixed to a base 15 by caulking and a ring-shaped portion
38 is formed around the base end 16A of the binding leg 16. Concretely, a lug member
39 is provided on the side of a body portion 30 opposed to an operating tab portion
31, and serves as a means for causing the body portion 30 to rotate at an elevated
level (i.e., rotation position elevating means). The lug member 39 is provided to
have a width shorter than the width of the operating tab portion 31 in the right and
left direction in Fig. 7. Therefore, the lug member 39 is allowed to contact the top
surface of sheets of paper in a position not interfering with the binding legs 16,
when the paper retainer 20 is fitted on the binding legs 16. Note that the width of
the lug member 39 is not particularly limited so long as it is shorter than the length
between the base ends of the binding legs 16, 16. Also, as shown in Fig. 9, the lug
member 39 is provided in the form to extend downward from a left end of the body portion
30, as viewed in Fig. 9, substantially in the vertical direction, i.e., in a direction
substantially perpendicular to the direction of short width of the body portion 30
(the right and left direction in Fig. 9). Then, as shown in Fig. 16, a distal end
39A of the lug member 39 is set to have such a length that, when the paper retainer
20 is entirely in the tilted state with the binding legs 16 positioned in the first
opening areas 33, the distal end 39A is able to contact the surface of the base 15.
In areas at both lengthwise ends of the body portion 30 where the holes 32 and the
slot holes 35 are formed, the body portion 30 has an elongated elliptical contour
having a curved outer periphery. On the other hand, in an area of the body portion
30 between the two slot holes 35, 35 that are inner ones among the total four slot
holes 35, 35 every two of which are formed at each of both the lengthwise ends of
the body portion 30, the body portion 30 is in the form of an arc-shaped piece connecting
to the operating tab portion 31. Further, voids 40 (see Figs. 8 and 13) are formed
in lower parts of the body portion 30 near the both ends thereof. Such a structure
contributes to cutting down the amount of a material used and reducing the weight
of the paper retainer as a whole.
[0028] In the second embodiment, sheets of paper P are bound and gripped with the paper
retainer 20 essentially in the same manner as in the first embodiment. When the paper
retainer 20 is set as shown in Fig. 16 and the operating tab portion 31 is pressed
to apply a force for rotating the paper retainer 20, the body portion 30 is rotated
while the distal end 39A of the lug member 39 is held in contact with the top surface
of the sheets of paper P at an initial stage of the rotating operation, because the
distal end 39A of the lug member 39 has a length being able to contact the surface
of the base 15. It is therefore possible to suppress a further descent of the body
portion 30 and to avoid a fear that the first opening areas 33 may bite into the ring-shaped
portion 38 to disable further rotation of the paper retainer 20. Then, as shown in
Fig. 17, when the operating tab portion 31 is rotated to a position where it lies
substantially parallel to the surface of the base 15, the binding legs 16 are positioned
in the second opening areas 34 just above the ring-shaped portion 38 in close relation.
[0029] Accordingly, this second embodiment described above can provide such an advantage
that the paper retainer 20 is applicable even to the binder which has a structure
of caulking the base ends 16A of the binding legs 16 and has the larger-diameter ring-shaped
portions 38 around the base ends 16A.
[0030] It is to be noted that the number of the holes 32 formed in the paper retainer 20
is not limited to the number in the illustrated construction, but may be increased
as needed. Thus, it is sufficiently satisfied in the present invention that the number
of the formed holes is determined depending on the number of the binding legs, the
length of the binder, and so on.
[0031] Also, while the above embodiments show a structure in which the opening areas for
insertion of the binding legs therethrough are completely enclosed, the present invention
is not limited to such a structure. As an alternative, the opening area may be formed
into such a cutout shape that the body portion is partly cut from the opening area
toward an outer edge thereof. Thus, it is essential in the present invention that
the opening area has such a shape as enabling the paper retainer to be fitted to the
binding legs in a stationary state upon displacement of the body portion.
[0032] According to the paper retainer of the present invention, as described above, since
the body portion is displaced and securely held on the binding legs by operating the
body portion to be pressed against the paper surface, sheets of paper can be gripped
with very simple operation.
[0033] Also, since the binding legs are moved from the first opening areas to the second
opening areas where clamping forces are imposed on the binding legs, a hole structure
is very simple and the paper retainer can be kept in a fitted position with stability.
[0034] Further, with such an arrangement that the body portion has a shape extending in
a lengthwise direction of the paper retainer, the first opening area is extended in
an oblique direction with respect to an imaginary plane extending in a direction of
short width of the body portion, and the second opening area is extended in a direction
substantially perpendicular to the imaginary plane, the body portion takes a tilted
posture when the binding legs are inserted through the first opening areas, allowing
users to easily apply a pressing force for moving the binding legs to position in
the second opening areas.
[0035] Still further, since the body portion has a curved outer periphery in areas where
the holes are formed and the body portion includes an operating tab portion for moving
the body portion to rotate, users can smoothly perform the operation of moving the
body portion downward while rotating it, and can be given a lighter operating feel
because of the presence of an area to which the pressing force is to be applied. In
addition, when detaching the paper retainer, it is only required to put a finger under
the operating tab portion and lifting it upward. The burden imposed on users in the
operation of attaching and detaching the paper retainer can therefore be reduced.
[0036] Still further, with such an arrangement that deformation allowances are formed at
positions adjacent to the holes, resistance developed upon the binding legs being
moved to position in the second opening areas can be weakened so that users are given
a lighter operating feel, while stronger clamping forces for the binding legs can
be developed.
[0037] Still further, with such an arrangement that the rotation position elevating means
is formed by a lug member projecting in a direction substantially perpendicular to
the lengthwise direction of the body portion, and the lug member has a distal end
forming a center of rotation to elevate the body portion when the body portion is
rotated, the body portion is automatically caused to rotate at a position elevated
along axes of the binding legs just by applying the pressing force to the operating
tab portion. As a result, the paper retainer can be fitted in the elevated position
with a very simple construction.
1. A paper retainer (20) fitted to binding legs (16) erecting from a predetermined base
surface (15) and being able to grip sheets of paper between said paper retainer (20)
and said base surface (15),
wherein said paper retainer (20) includes a body portion (30) having holes (32) through
which said binding legs (16) can be inserted and
when said body portion (30) is pressed toward said base surface (15) and displaced
through a predetermined extent, said paper retainer (20) is held in a stationary state
by said binding legs (16) characterised in that said holes (32) are formed such that the front and the back sides created by the
holes (32) in the retainer (20) are symmetrical to each other.
2. A paper retainer (20) according to claim 1, having rotation position elevating means.
3. A paper retainer (20) according to claim 1 or 2, wherein each of said holes (32) is
made up of a first opening area (33) through which said binding leg (16) can be loosely
inserted, and a second opening area (34) formed continuously to said first opening
area (33) and being able to clamp said binding leg (16) in a radial direction, and
deformation allowances are formed in said body portion (30) at positions adjacent
to said holes (32) for allowing said second opening areas (34) to slightly spread
when said binding legs (16) are moved from said first opening areas (33) to said second
opening areas (34), when said body portion (30) is pressed toward said base surface
(15) with said binding legs (16) inserted through said first opening areas (33), said
binding legs (16) are forced to position in said second opening areas (34) and said
paper retainer (20) is fixedly held while said second opening areas (34) are clamping
said binding legs (16).
4. A paper retainer according to claim 3, wherein said body portion (30) is formed into
a shape having a curved outer periphery at least in areas where said holes (32) are
formed, and said body portion (30) includes an operating tab portion (31) for moving
said body portion (30) such that said binding legs (16) are moved from said first
opening areas (33) to said second opening areas (34).
5. A paper retainer (20) according to claim 3, wherein said body portion (30) has an
elongated elliptical contour lying over said base surface (15) in cross-section at
least in areas where said holes (32) are formed, and said body portion (30) includes
an operating tab portion (31) for moving said body portion (30) such that said binding
legs (16) are moved from said first opening areas (33) to said second opening areas
(34).
6. A paper retainer (20) according to claim 3, 4 or 5, wherein said body portion (30)
has a shape extending in a lengthwise direction of said paper retainer (20), said
first opening area (33) is extended in an oblique direction with respect to an imaginary
plane extending in a direction of short width of said body portion (30), said first
opening area (33) penetrating said body portion (30) to be open at both opposite sides
thereof, and said second opening area (34) is extended in a direction substantially
perpendicular to the imaginary plane, said second opening area (34) penetrating said
body portion (30) to be open at both opposite sides thereof.
7. A paper retainer (20) according to claim 2 or 3, wherein said rotation position elevating
means is formed by a lug member projecting in a direction substantially perpendicular
to the lengthwise direction of said body portion, and said lug member has a distal
end positioned to contact said base surface in a condition where said binding legs
locate in said first opening areas, thereby suppressing a descent of said body portion
when said body portion is operated.
1. Ein Papierarretierer (20), welcher an Bindestifte (16) angepasst ist, welche von einer
vorbestimmten Unterfläche (15) nach oben stehen und in der Lage sind, Papierblätter
zwischen dem Papierarretierer (20) und der Unterfläche (15) festzuhalten,
wobei der Papierarretierer (20) einen Körperabschnitt (30) mit Löchern (32) einschließt,
durch welche die Bindestifte (16) eingeführt werden können und
der Papierarretierer (20) in einem unbeweglichen Zustand durch die Bindestifte (16)
gehalten wird, wenn der Körperabschnitt (30) gegen die Unterfläche (15) gedrückt und
in einem vorbestimmten Ausmaß verschoben wird,
dadurch gekennzeichnet, dass die Löcher (32) derart ausgebildet sind, dass die Vorder- und Rückseiten, welche
durch die Löcher (32) in dem Arretierer (20) gebildet werden, symmetrisch zueinander
sind.
2. Ein Papierarretierer (20) gemäß Anspruch 1, welcher eine Einrichtung für erhöhte Rotationsposition
aufweist.
3. Ein Papierarretierer (20) gemäß Anspruch 1 oder 2, wobei jedes der Löcher (32) aus
einem ersten Öffnungsbereich (33) gebildet wird, durch welchen die Bindestifte (16)
lose eingeführt werden können, und einem zweiten Öffnungsbereich (34) gebildet wird,
welcher zusammenhängend mit dem ersten Öffnungsbereich (33) ausgebildet ist, und welcher
in der Lage ist, die Bindstifte (16) in radialer Richtung einzuklemmen, und wobei
Deformationsmöglichkeiten in dem Körperabschnitt (30) an zu den Löchern (32) angrenzenden
Stellen ausgebildet sind, um zu ermöglichen, dass die zweiten Öffnungsbereiche (34)
geringfügig vergrößert werden, wenn die Bindestifte (16) von den ersten Öffnungsbereichen
(33) zu den zweiten Öffnungsbereichen (34) bewegt werden, wenn der Körperabschnitt
(30) gegen die unterfläche (15) gedrückt wird, während die Bindestifte (16) in die
ersten Öffnungsbereiche (33) eingesteckt sind, wobei die Bindestifte (16) zwangsweise
in den zweiten Öffnungsbereichen (34) angeordnet werden, und der Papierarretierer
(20) in fester Weise gehalten wird, während die zweiten Öffnungsbereiche (34) die
Bindestifte (16) einklemmen.
4. Ein Papierarretierer gemäß Anspruch 3, wobei der Körperabschnitt (30) in einer Form
ausgebildet ist mit einem gekrümmten Äußeren mindestens in Bereichen, in welchen die
Löcher (32) ausgebildet sind und der Körperabschnitt (30) einen Bedienungsstreifenabschnitt
(31) einschließt zum Bewegen des Körperabschnitts (30) derart, dass die Bindestifte
(16) von den ersten Öffnungsbereichen (33) zu den zweiten Öffnungsbereichen (34) bewegt
werden.
5. Ein Papierarretierer (20) gemäß Anspruch 3, wobei der Körperabschnitt (30) eine längliche
elliptische Kontur, welche über der Unterfläche (15) liegt, im Querschnitt mindestens
in den Bereichen aufweist, in welchen die Löcher (32) ausgebildet sind, und wobei
der Körperabschnitt (30) einen Bedienungsstreifenabschnitt (31) einschließt, zum Bewegen
des Körperabschnitts (30) derart, dass die Bindestifte (16) von den ersten Öffnungsbereichen
(33) zu den zweiten Öffnungsbereichen (34) bewegt werden.
6. Ein Papierarretierer (20) gemäß Anspruch 3, 4 oder 5, wobei der Körperabschnitt (30)
eine Form aufweist, welche sich in einer längsseitigen Richtung des Papierarretierers
(20) erstreckt, der erste Öffnungsbereich (33) sich in einer schrägen Richtung in
Bezug auf eine imaginäre Ebene erstreckt, welche sich in einer Richtung der kurzen
Breite des Körperabschnitts (30) erstreckt, wobei der erste Öffnungsbereich (33) den
Körperabschnitt (30) durchdringt, um an beiden gegenüberliegenden Seiten desselben
offen zu sein, und wobei der zweite Öffnungsbereich (34) sich in einer Richtung erstreckt,
welche im Wesentlichen senkrecht zu der imaginären Ebene liegt, wobei der zweite Öffnungsbereich
(34) den Körperabschnitt (30) durchdringt, um an beiden gegenüberliegenden Seiten
desselben offen zu sein.
7. Ein Papierarretierer (20) gemäß Anspruch 2 oder 3, wobei die Einrichtung für erhöhte
Rotationsposition durch ein Ansatzstück ausgebildet ist, welches in einer Richtung
vorsteht, welche im Wesentlichen senkrecht ist zu der längsseitigen Richtung des Körperabschnitts,
und wobei das Ansatzstück ein entferntes Ende aufweist, welches angeordnet ist, um
die Unterfläche in einem Zustand zu berühren, in welchem die Bindestifte sich in den
ersten Öffnungsbereichen befinden, wodurch ein Absenken des Körperabschnitts unterdrückt
wird, wenn der Körperabschnitt bedient wird.
1. Dispositif de retenue de papier (20) monté sur des pattes de fixation (16) se dressant
à partir d'une surface de base prédéterminée (15) et étant capable de serrer des feuilles
de papier entre ledit dispositif de retenue de papier (20) et ladite surface de base
(15),
ledit dispositif de retenue de papier (20) comportant une partie de corps (30)
ayant des trous (32) à travers lesquels lesdites pattes de fixation (16) peuvent être
insérées, et
lorsque ladite partie de corps (30) est pressée vers ladite surface de base (15)
et déplacée sur une longueur prédéterminée, ledit dispositif de retenue de papier
(20) est maintenu dans un état stationnaire par lesdites pattes de fixation (16),
caractérisé en ce que lesdits trous (32) sont formés de telle sorte que les côtés avant et arrière créés
par les trous (32) dans le dispositif de retenue (20) sont symétriques l'un de l'autre.
2. Dispositif de retenue de papier (20) selon la revendication 1, ayant des moyens d'élévation
de position de rotation.
3. Dispositif de retenue de papier (20) selon la revendication 1 ou 2, dans lequel chacun
desdits trous. (32) est constitué d'une première zone d'ouverture (33) à travers laquelle
ladite patte de fixation (16) peut être insérée de manière lâche, et une seconde zone
d'ouverture (34) formée en continuité de ladite première zone d'ouverture (33) et
étant capable d'immobiliser ladite patte de fixation (16) dans une direction radiale,
et des jeux de déformation sont formées dans ladite partie de corps (30) à des positions
adjacentes auxdits trous (32) pour permettre auxdites secondes zones d'ouverture (34)
de s'écarter légèrement lorsque lesdites pattes de fixation (16) sont déplacées desdites
premières zones d'ouverture (33) auxdites secondes zones d'ouverture (34) lorsque
ladite partie de corps (30) est pressée vers ladite surface de base (15) en ayant
lesdites pattes de fixation (16) insérées à travers lesdites premières zones d'ouverture
(33), lesdites pattes de fixation (16) sont forcées en position dans lesdites secondes
zones d'ouverture (34) et ledit dispositif de retenue de papier (20) est maintenu
de manière fixe tandis que lesdites secondes zones d'ouverture (34) immobilisent lesdites
pattes de fixation (16).
4. Dispositif de retenue de papier selon la revendication 3, dans lequel ladite partie
de corps (30) est formée en une forme ayant une périphérie extérieure incurvée au
moins dans des zones où lesdits trous (32) sont formés, et ladite partie de corps
(30) comporte une partie de languette d'actionnement (31) pour déplacer ladite partie
de corps (30) de telle sorte que lesdites pattes de fixation (16) sont déplacées desdites
premières zones d'ouverture (33) auxdites secondes zones d'ouverture (34).
5. Dispositif de retenue de papier (20) selon la revendication 3, dans lequel ladite
partie de corps (30) a un contour elliptique allongé s'étendant au-dessus de ladite
surface de base (15) en section transversale, au moins dans des zones où lesdits trous
(32) sont formés, et ladite partie de corps (30) comporte une partie de languette
d'actionnement (31) pour déplacer ladite partie de corps (30) de telle sorte que lesdites
pattes de fixation (16) sont déplacées desdites premières zones d'ouverture (33) auxdites
secondes zones d'ouverture (34).
6. Dispositif de retenue de papier (20) selon la revendication 3, 4 ou 5, dans lequel
ladite partie de corps (30) a une forme s'étendant dans une direction longitudinale
dudit dispositif de retenue de papier (20), ladite première zone d'ouverture (33)
est allongée dans une direction oblique par rapport à un plan imaginaire s'étendant
dans une direction de faible largeur de ladite partie de corps (30), ladite première
zone d'ouverture (33) pénétrant dans ladite partie de corps (30) pour être ouverte
à ses deux côtés opposés, et ladite seconde zone d'ouverture (34) est allongée dans
une direction sensiblement perpendiculaire au plan imaginaire, ladite seconde zone
d'ouverture (34) pénétrant dans ladite partie de corps (30) pour être ouverte à ses
deux côtés opposés.
7. Dispositif de retenue de papier (20) selon la revendication 2 ou 3, dans lequel lesdits
moyen d'élévation de position de rotation sont formés par un élément d'oreille faisant
saillie dans une direction sensiblement perpendiculaire à la direction longitudinale
de ladite partie de corps, et ledit élément d'oreille a une extrémité distale positionnée
pour venir en contact avec ladite zone de base dans un état où lesdites pattes de
fixation se positionnent dans lesdites premières zones d'ouverture, interdisant ainsi
une descente de ladite partie de corps lorsque ladite partie de corps est actionnée.