Note: Descriptions are shown in the official language in which they were submitted.
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A l?i~ Binder
This invention relates to a ring binder and, in particular, a ring binder adapted to be
fixed to a base member, e.g. a cardboard, paper or metal cover for a folder, book or
the like.
F~i~ting ring binders include a substantially rigid upper structure supporting a pair
of lower carrier plates which are pivotably movable relative to each other. On each
of the lower carrier plates a number of half rings are mounted so that pivoting
movement of the lower carrier plates, caused by pivoting movement of a pair of
levers one at each end of the ring binder, will close or open the ring members, ~s
desired.
A major problem associated with such existing ring binders is that the opening and
closing actions of the ring members are dangerous to the users, as such are brought
about by a snapping movement. In addition, in order to withstand the force exerte(l
by the lower carrier plates during their pivoting movement, the upper structure is
required to be made of relatively thick, rigid, strong and, thus, expensive materi~lls,
which add to the cost of the ring binders, and make assembling and production of the
ring binders more difficult. In addition, the upper structure of the ring binders is
prone to scratching, e.g. during assembling. Furthermore, as the ring memhers ~Ire
closed by a snapping action, j~mming of paper between the ring members is common.
It is therefore an object of the present invention to provide a ring binder wherein one
or more of the aforesaid shortcomings are mitigated.
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According to the present invention, there is provided a ring binder adapted to be fixed
to an article by at least one fixing means, the ring binder comprising support means
for mounting a plurality of ring members thereon, characterized in that controlling
means are provided movable along a sloped portion of the under surface of the
S support means to cause the support means to pivot and thereby open the ring
members.
Suitably, the controlling means are movable to act on a sloping part of the upper
surface of the support means to cause the support means to pivot and thereby close
the ring members.
Advantageously, the support means comprises a pair of support members pivotally
movable relative to each other, wherein the inner edges of the support members are
arranged to engage each other on closing of the ring binder and to disengage each
other on opening of the ring binder.
Preferably, sec~ring means are provided to hold the support means and secure the
support means to an article via said fixing means, said securing means being situate(l
below the support means.
Suitably the controlling means are slidably movable to lock the ring members in the
open and/or closed position.
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Advantageously, the controlling means open and close the ring binder, and the
support means includes locking means co-operable with the controlling means
whereby any force applied to the ring members when in their open position will not
close the ring members.
Preferably, the controlling means are movable either to open and lock, and/or close
and lock, the ring members in one operation.
Suitably, the controlling means are slidably movable to open and/or close the rin~
members.
Advantageously, the support means comprises a pair of support members supporte(l
by holding means joining the outer edges of the pair of support members together.
The support means preferably comprises a plurality of substantially longitudinal rih
members on its upper surface.
Suitably, the controlling means open and close the ring binder, and wherein the
support means co.nl).ises locking means cooperable with the controlling means to lock
the ring members in their closed position.
Advantageously, the controlling means open and close the ring binder, and the
controlling means acts upon a first location to open the ring binder, and upon a
second location to close the ring binder, wherein the first location and the .second
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location are of different distances from the centre of the ring binder.
The support means preferably comprises a pair of support members, wherein one of
said support members has at least one engagement member directly cooperable with
the other support member during closing of the ring binder.
The invention will now be described by way of example only with reference to the
accompanying drawings, wherein:-
Fig. 1 shows a top perspective view of a ring binder according to the present
invention, in which the half rings are in the closed position;
Fig. 2 shows an enlarged view of one end of the ring binder in Fig. 1;
Fig. 3 shows a top perspective view of the ring binder in Fig. 1 in which the half
rings are in the open position;
Fig. 4 shows an enlarged view of one end of the ring binder in Fig. 3;
Fig. S shows an underside perspective view of the ring binder in Fig. 1;
Fig. 6 shows an enlarged view of one end of the ring binder in Fig. S;
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`~,
Fig. 7 shows an exploded view of the tab, frame member and connecting member of
the ring binder in Fig. 1
Fig. 8 shows an underside perspective view of the ring hinder in Fig. 3;
s
Fig. 9 shows an enlarged view of one end of the ring binder in Fig. X;
Fig. 10 shows a further enlarged underside view of the ring binder in Fig. 1;
Fig. 11 shows a partial exploded view of the ring binder in Fig. 10;
Fig. 12 shows a further enlarged underside view of the ring binder in Fig. 3; and
Fig. 13 shows a partial exploded view of the ring binder in Fig. 12.
Figs. 1 and 2 show a ring binder, generally de~ign~ted as 10, according to the present
invention. The ring binder 10 includes support means in the form of a pair of plates
12, each of which is pivotally movable about its respective outer edge in a manner
to be described below. Fixedly mounted to each plate 12 are three half rings 14.The corresponding half rings 14 on the two plates 12 mate to form full rings when
the ring binder 10 is in the closed position as shown in Figs. 1 and 2.
Running along each end of the upper surface of each plate 12 is a pair of longitudinal
ribs in the forrn of upst~n-ling ridges 13 for strengthening the plates 12. The ridges
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13 start near the longitudinal ends of the plates 12 and extend beyond the first set of
half rings 14 closest thereto. The ridge 13 next to the inner edge of the plates 12
extend around an apellure forrned by f~cesses 20 (to be ~ ssed below) such that
they are continuous along their whole length. The ridges 13 assist in preventingS scratching of the plates 12, e.g. during the assembling process. The length of the
ridges 13 are roughly 1/3 of the whole length of the ring binder 10. Each pair ol`
ridges 13 extend beyond a depression 15 formed on the upper surface of the plates
12. The depressions 15 are present due to hemispheres 42 (to be discussed below)formed on the under surface of the plates 12.
At each longitudinal end of the ring binder 10, controlling means in the form of a
control member 16 is provided which is slidably movable in the direction of the
longitudinal axis of the ring binder 10. Each of the longitudinal ends of the plates
12 is provided with a downwardly sloping ramp lX. When the control members l6
are moved inwardly from their outermost position towards their innerrnost position~
the underside of the base portion of the control members 16 act on the inner edges
of the ramps 18 to cause the plates 12 to pivot, and to thereby close the half rings 14.
In the position shown in Figs. 1 and 2, when the ring binder 10 is in the closedposition and the control members 16 are in their innermost position, the underside of
the base portion of each control member 16 rests on the upper surface of the pklte.s
12. In particular, the ring binder 10 is locked in its closed position, i.e. any opening
force applied onto the half rings 14 will not open the ring binder 10, since the ends
of the plates 12 are trapped under the base portion of both control members 16. The
ring binder 10 is thus locked in its closed position hy the control member l~
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cooperating solely with the plates 12.
Near each end of the ring binder 10, there is provided on the inner edge of each of
the plates 12 a substantially semi-circular recess 20. ~s shown more clearly in Fig.
2, the two semi-circular recesses 20 on the two plates 12 at the same end of the ring
binder combine to form a subst~nti~lly circular aperture. This aperture may receive
fixing means, e.g. a rivet (not shown) therethrough for engagement with a connecting
plate 26 of a securing and holding means 24 (to be ~ c~ssed below) for fixing the
ring binder 10 to a base member, e.g. a cardboard, paper or metal cover of a folder
or book (not shown). On the outer edge of each plate 12 a pair of first side recesses
22 are provided, each for receiving an end part of the securing and holding means 24.
In a manner to be ~ cllc~ed later, the control members 16 may be moved away fromeach other to open the half rings 14, and lock the half rings 14 in their open position,
as shown in Figs. 3 and 4. In this ring-opened position, the underside of the ha.se
portion of the control member 16 will cease to be in full contact with the plates 12,
and in particular the ramps 18, although the base still remains touching the inner
edges of the ramps 18 in order to limit the amount of pivoting of the plates 12 in the
open position of the ring binder.
As shown in Figs. S and 6, the two plates 12 are held in position and the outer edges
thereof are joined to each other via two securing and holding means 24 below theplates 12. Each securing and holding means comprises a connecting plate 26 and two
connecting means in the form of tubes 28, one tube 28 at each side of the connecting
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plate 26. The outer edges of each side of the plates 12 are also interned to form
channels 30. The tubes 28 of the seCllring and holding means 24 are received within
the side recesses æ of the plates 12 to form with the channels 30 a pair of
substantially continuous passa~.ays through which a horizontal part of the control
S member 16 may move. The outer edges of the plates 12 are thus pivotally supported
by the holding means 24, the inner edges of the plates 12 being movable away from
each other during pivoting (ie during opening of the ring binder).
As shown more clearly in Fig 7, the control member 16 comprises an upwardly
extending tab 32 and a frame member 34. The tab 32 is positioned at each end of the
plates 12, and lies in a plane that is transverse to the longitudinal axis of the ring
binder. The frame member 34 is formed by bending one end of rectangular wire loop
to form a ~ubsl~lllially L-shaped member. A shorter upwardly extending portion ol`
the frame member 34 is received within the tab 32, while a longer horizontal portion
of the frame member 34 extends below the plates 12 and is received within the
passageways formed by the c-h~nnels 30 of the plates 12 and the side tubes 2X of the
securing and holding means 24. The extent of outward movement of the control
members 16 is determined by the length of a pair of second side recesses 3~ provide(l
on the outer edges of the plates 12.
The frame member 34 also includes a crossbar 38 which is movable between the twoextremities of the pair of second side recesses 36. Inward movement of the control
member 16 is stopped when the tab 32 of the control member 1t~ rests against ~heextreme inner ends of the channels 30, or when a crossbar 38 (to be di~scussed below)
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of the control member 16 jams inside a cut out portion 40 (to be discussed below) of
the plates 12. Outward movement of the control member 16 is stopped when the tab32 rests against the extreme outer ends of the channels 30. In this latter position, the
base of the control member 16 is not in full contact with the ramps lX, but rather
S touches only the inner edges of the ramps 1X to limit pivoting of the plates 12. In
consequence, the extremities of the movement of the control members 16 representthe ring-opened and locked position, and the ring-closed and locked position.
As shown clearly in Figs. 5 to 7, the connecting plate 26 is provided with an aperture
27 which is substantially aligned with the substantially circular aperture formed hy
the two semi-circular recesses 20, to allow fixing means in the form of a rivet to pass
through, to thereby secure the ring binder 10 to a base member. Alternatively, the
connecting plate 26 may have no hole, and one is only formed when a rivet is
punched therethrough. The aperture 27 of the connecting plate 26 may alternatively
include a number of downwardly depending gripping members for fixing the ring
binder 10 to a cover.
As shown in the drawings, the inner edges of the plates 12 are bent downward andface towards each other. In the closed position as shown in Figs. 5, 6, 10 and l l,
the innermost edges of the plates 12 meet each other along the longitudinal axis of the
ring binder 10 to align the plates 12 for ring closing, when the control members 16
with the crossbars 38 are in the innermost position. In the open position, as shown
in Figs. X, 9, 12 and 13, the innermost edges of the plates disengage from each other.
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As shown more clearly in Fig. 6, the middle part of the crossbar 38 is received
within a substantially J shaped cut out portion 40 formed on the underside of the
plates 12, and in particular on the interned inner edges of the plates 12. The cut out
portion 40 comprises two sloping parts, in which the one nearer to the centre of the
S ring binder 10 is in the form of an overh~nging hooked part, while the one nearer to
the end of the ring binder 10 is in the form of a straight slope. When the half ring.s
14 are closed by pushing the control members 16 towards each other, the crosshars
38 are received within the hooked part of the cut out portion 40, and prevent any
opening of the half rings 14 due to relative pivoting movement of the plates 12. The
crossbars 38 within the hooked part of the cut out portions 40 also further enhances
the locking function of the ring binder 10 in the closed position.
When the control members 16 are moved away from each other, the crossbar 3X
moves to engage the straight slope of the cut out portion 40 to cause the inner edges
of the plates 12 to rise up and pivot about their outer edges, and therehy to open the
half rings 14.
Alternatively, the crossbar 38 may move to engage the surface of a pair of
hemispheres 42 on the underside of the plates 12, and thereby open the half rings 14.
In this alternative, the crossbars 38 disengages from the straight slope portion of the
cut out portion 40 on opening of the ring binder, and engages the surface of thehemispheres facing the centre of the ring binder. The hemispheres 42 provided onthe underside of the plates 12 are also designed to aid in the spreading out of any
applied force away from the longitudinal axis of the ring binder, and thereby as~sist
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in opening/closing of the binder.
When the half rings 14 are opened by slidingly moving the control members 1~ to
their outermost position, as shown in Figs. 3, 4, X and 9, each of the crossbars 3
S rests against the base of the two hemispheres 42, while the plates 12 face away from
each other. The cros~bar 38 is allowed to rest on the rounded base of the two
hemispheres 42 since the crossbar 38 rests against the extreme outer ends of thechannels 30 (in other words, the rounded base of the two hemispheres is positioned
adjacent the extreme outer ends of the channels 30). In this position, the ring binder
10 is also locked as pivoting movement of the plates 12 back to the closed position
by forcing the half rings 14 together, is prevented by the base of the hemispheres 42
resting on the crossbar 38. In particular, any force applied on the half rings 14 in ~In
attempt to close them will convert, via the plates 12, into a force passed through the
base of the hemispheres 42 against the crossbar 3X. It is therefore only possible ~o
close the half rings 14 by moving the control members 16 back to the position shown
in Figs. 1, 2, 5 and 6.
It is clear from the foregoing that a single outward movement of the control memhers
16 will achieve in one operation both opening and locking of the ring binder 12,while a single inward movement of the control members 1~ will achieve in one
operation both closing and locking of the ring binder 12, the locking feature being
achieved immediately after opening/closing of the ring binder.
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In particular, the control member 16 acts at a first location (ie the straight slope of
the cut out portion 40 on the he~ eres 42) to open the ring binder, and at a second
location (ie the ramp 18) to close the ring binder, the two locations being at different
distances along the length of the ring binder (in other words at different distanc~s
from the centre of the ring binder).
As shown in Figs. 10 to 13, the inner edge of each plate 12 is co<)perable with the
inner edge of the other plate 12 during closing of the ring binder 10. In particular,
each plate 12 is provided with engagement members in the form of two pr(ltrusions
44, which are substantially parallel to the upper surface of the plates 12, and two
openings 46. Each protrusion 44 of a plate 12 is received within a correspondingopening 46 in the other plate 12. This arrangement further enhances proper
alignment of the plates 12 during their relative pivoting movement, and in particular
relative alignment of the plates 12 during closing. During opening of the plates 12,
the protrusion 44 disengage from the corresponding openings 46, in order to allow
the plates 12 to pivot about their outer edges.
It should be noted from the above that, by reason of the present invention, materials
of a lower grade may be used to achieve the same strength and rigidity as prior art
arrangements. For example, it has been found that while 4B steel is required t~
used in convention ring binders, 8B steel rnay be used for producing ring binders
according to the present invention. For ring binders of the same siæ, a prior art ring
binder may weigh up to 70 grams, while one according to the present inv~ntion can
weigh only 55 grams. Not only does this represent major saving in cost, the saving
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in material is also t~lvilonlllentally sellsilive. Furthermore, as no snapping action is
involved in this invention, the ring members are opened or closed much more gently
than in prior art arrangements, such that the possibility of j~mming paper between the
ring members is significantly reduced.
s
It should be understood that the above only describes an embodiment for carrying out
the invention and modifications and/or alterations may be made thereto withou
departing from the spirit thereof.
