JPH081113Y2 - Binding device - Google Patents

Description

TECHNICAL FIELD The present application relates to a binding tool that opens and closes a rotating binding bar to attach and detach a sheet with binding holes.

2. Description of the Related Art Conventionally, a plurality of cylindrical fixed binding rods are integrally erected from one side edge of the upper surface of a vertically rectangular base plate provided with a hole for attaching to a file, and the other side of the lower surface of the base plate. A plurality of lateral grooves are provided at the positions corresponding to the fixed binding rods, and a downward U-shaped rotary binding rod whose tip can be engaged with and disengaged from the fixed binding rods via a hinge portion at the outer end thereof. A binding tool having an appropriate flexibility and having a hinge plate provided therein is known, for example, from Japanese Utility Model Publication No. 60-24626.

However, according to the conventional binding device described above, since the rotary binding members are continuously provided to the hinge plate via the thinly formed hinge portion, the rotary binding members are provided. Since it is in a state in which it is easy to move in the direction orthogonal to the rotation direction, not only does it have an operational disadvantage that it is difficult to match the tip of the rotary binding with the tip of the fixed binding when binding the rotary binding. With weak mechanical strength, lack of durability and stability, and with the rotary binding lever open,
During splicing work such as documents on the fixed binding rod, there is a risk that the rotary binding will easily fall over and interfere with the spelling work. There was a defect such as requiring.

Then, this application aims at eliminating such a defect.

Means for Solving the Problems The present application, in order to achieve the above-mentioned object, one side edge upper surface at both end positions in the longitudinal direction is provided with a fixed binding rod having a fitting hole portion at its upper end, and A pair of left and right bearing pieces having a C-shaped fitting portion projecting in an inverted L shape and opening at the lower surface are separately provided at respective positions on the other side surface in the longitudinal direction facing the fixed binding rod. And a slide plate that is in sliding contact with the outer edge of the bearing piece at both ends of the rotating shaft that is rotatably supported by the fitting portions of the pair of bearing pieces. To
A rotary binding rod formed by projecting the base end of a downwardly U-shaped binding shaft having a fitting shaft portion that fits into the fitting hole portion of the fixed binding rod at the free end and projecting in an orthogonal shape. In the above, a part of the peripheral surface of the sliding contact piece is provided with a right angle portion that presses against the side surface of the base plate at the time of rotation to give a moderation to the undulating motion of the binding shaft, Further, the fitting hole portion is formed of a conical receiving portion, a small-diameter locking portion, and a slightly expanded engagement hole, and the fitting shaft portion is pressed by the locking portion. A bulging portion that engages with the engaging hole and a slit that imparts elasticity. Further, a bearing piece extends outward from the side surface of the base plate, extends downward from the end portion, and has a tip end. The inner surface is provided with a locking part, and the horizontal top part of the rotary binding rod is cut flat to form a downward D-shaped cross section. , The the inner surface of the vertical portion, but comprising a taper to expand from the inner end to the outer end direction to respectively form.

Action When assembling the rotary binding rod to the base plate, however, the rotary shaft is made horizontal and the left and right sliding contact pieces are pushed into the bearing pieces so that they are in sliding contact with the outer edges of the pair of bearing pieces. The moving binding rod is rotatably supported by the bearing piece, and the outer side surface of the base plate and the sliding contact piece are in pressure contact with each other while the binding shaft is erected. In this case, when the inner surface of the bearing piece has a taper, the rotary shaft is in pressure contact with it, and the rotary shaft is slightly curved so that the bearing piece is supported without play. Next, when rotating from this state in the direction to close the rotary binding rod,
The right-angled part passes while pressingly contacting the outer side surface of the base plate, the vertical surface of the sliding contact piece makes contact with the outer side surface of the base plate, and the swelling diameter of the rotating binding ring is received by the receiving part of the fixed binding ring. The parts fit together. Therefore, when the cut surface of the binding shaft is pressed downward with a finger in this state, the bulging portion engages with the engaging hole beyond the locking portion, and the rotary binding rod is fitted to the fixed binding rod to close the ring. Becomes When a document or the like is bound from this closed state, the horizontal shaft portion of the rotary binding member is grasped and pulled up, and the bulging portion comes out of the locking portion and the rotary binding member rotates in the opening direction. . Then, when the rotary binding rod is rotated slightly more strongly, the right-angled portion passes while pressingly contacting the outer side surface of the base plate, the lower surface of the sliding contact piece comes into contact with the outer side surface of the base plate, and the rotary binding ring is moved. Holds wide open. In this state, after binding documents etc. to the fixed binding rod and turning the rotary binding rod in the ring closing direction, the mechanical accent caused by the pressure contact between the right-angled portion and the outer side surface of the base plate as described above. The rotary binding rod is laid down via the interposition, and then the rotary binding rod and the fixed binding rod are fitted by the acupressure operation of the cut surface.

Example Hereinafter, an example of the present application will be described in detail with reference to the drawings.
(1) is a vertical rectangular base plate made of synthetic resin such as acrylonitrile-butane-styrene copolymer resin,
The upper surface is steeply inclined at about one-third on the outer side and gently inclined at about two-thirds on the inner side so that the outer side surface (2) in the longitudinal direction becomes waist high. The binding receiving surface (3) is formed. Two cylindrical fixed binding rods (4) and (4) are vertically separated from each other on the inner side edge of the binding plate receiving surface (3) of the base plate (1) thus formed. And at the top of it,
As shown in FIG. 3, the receiving part (5) which is inclined upwards.
And a fitting hole portion (8) including a locking portion (6) that is narrowed inward at the lower end thereof and an engagement hole (7) that engages a bulging portion (16) described later. There is. Further, at each position facing the fixed binding rod (4) on the outer side surface (2) of the base plate (1) formed at the waist height, a predetermined interval is provided to the left and right, and from the upper edge to the outside. And a pair of inverted L-shaped bearing pieces (10) and (10) each having a locking portion (9) projecting on the inner surface of the tip thereof are provided while being curved from the end thereof and extending further downward. , The inner surfaces of the downwardly extending portions of the bearing pieces (10), (10) have a taper (11) that slightly expands from the inner end toward the outer end as shown by the solid line in FIG. 1
On the outer side surface (2) of the base plate (1) facing the base plate (1), there is a built-up portion (10) a that forms a fitting portion necessary for rotatably supporting a rotating shaft (13) described later. It is provided integrally. As shown in FIG. 6, (12) is a rotary binding rod made of, for example, acetal resin, which is rotatably fitted in the pair of bearing pieces (10), (10) to provide a locking portion ( 9) A rotating shaft (13) locked so as not to escape by the 9) and both ends of the rotating shaft (13),
The pair of bearing pieces (10), (10) are provided so as to be capable of sliding contact with the outer edges of the bearing pieces, respectively, and the lower end thereof is brought into pressure contact with the outer side surface (2) of the base plate (1) to be undulated. Hold the right-angled part (1
4) has a sliding contact piece (15) and a central portion of the rotating shaft (13), the base end of which is integrally fixed and extends in the orthogonal direction, and the free end portion has the fixed binding rod. A fitting shaft portion (a fitting shaft portion having a bulging portion (16) press-fitted into the engagement hole (7) through the locking portion (6) of (4) and a slit (17) for imparting elasticity. 18)
And a binding shaft (19) bent downward in a U-shape, the binding shaft (19) has a circular cross section, and the horizontal top is cut flat (20) to form a downward D-shaped cross section. Presents. (21) and (21) are attachment holes for attaching the base plate (1) to the file cover A, and (22) is a document to be bound.

When the rotary binding rod (12) is assembled to the base plate (1), the rotary shaft (13) is made horizontal and the left and right sliding contact pieces (1
5) and (15) are in sliding contact with the outer edges of the pair of bearing pieces (10) and (10), and the binding shaft (19) projects from between the pair of bearing pieces (10) and (10). The pair of bearing pieces (10),
It is pushed into the inside of (10) from below and fitted, and as shown by the phantom line in FIG. 2, the rotating binding rod (1
Bearing 2) on bearing pieces (10) and (10). In this state, the sliding contact piece (15) is in pressure contact with the outer side surface (2) of the base plate (1), and the rotary shaft (13) has the inner surface taper (11) of the bearing pieces (10) and (10). Bearing pieces (1
The bearings are supported without play against 0) and (10). Next, when the rotary binding rod (12) is rotated so that the binding shaft (19) falls from this state, the bulging portion of the rotary binding rod (12) is received by the receiving portion (5) of the fixed binding rod (4). While the (16) is fitted, the right-angled portion (14) of the base plate (1) passes while being pressed against the outer side surface (2) of the base plate (1) so that the vertical surface of the sliding contact piece (15) is the base plate (1). It is in contact with the outer side surface (2) and, in this state, the cut surface (20) of the binding shaft (19)
When pressing down with your finger, the bulging part (16) will engage the locking part (6).
And the engaging hole (7) is crossed over, and the rotary binding rod (12) is fitted to the fixed binding rod (4) as shown by the solid line in FIG. When binding a document (22) or the like from this ring-closed state, pull up the horizontal shaft portion of the rotary binding rod (12) by pulling it up, and the bulging portion (16) comes out of the locking portion (6). Thus, the rotary binding rod (12) rotates in the opening direction. Then, the rotating binding rod (1
When 2) is rotated slightly more strongly, the right-angled portion (14) passes while being pressed against the outer side surface (2) of the base plate (1), and the lower surface of the sliding contact piece (15) is attached to the base plate (1). Touching the outer flank (2),
As shown by the phantom line in FIG. 2, the rotary binding rod (12) is wide open and the ring is opened.

In this state, after stapling the type and the like on the fixed binding rod (4) and then turning the turning binding rod (12) in the ring closing direction, as described above, the right-angled portion (14) and the base plate (1) are Outer side (2)
The rotary binding rod (12) is laid down via the mechanical moderation caused by the pressure contact with the second surface, and then the second operation is performed by the acupressure operation of the cut surface (20).
As shown by the solid line in the drawing, the rotary binding rod (12) and the fixed binding rod (4) are fitted to each other so that the document (22) and the like can be bound.

In the above-mentioned embodiment, the case where the outer side surface (2) of the base plate (1) is formed to have a waist height and the bearing piece (10) is provided above it is described. As shown in the figure, when the outer side surface (2) 'is formed low,
Although the opening angle of the rotary binding rod (12) is smaller than in the case of the configuration shown in the figure, the overall height can be reduced.

Effect of the Invention As described above, according to the present invention, since the sliding pieces that are in sliding contact with the both side edges of the pair of bearing pieces are provided at both ends of the rotating shaft that is integral with the binding shaft, the lateral swing of the rotating shaft in the axial direction can be prevented. There is no fear, and when forming a taper that expands outward on the inner surface of the bearing piece,
Since the rotating shaft can be fitted more tightly to the bearing piece, it has a length for rotating the rotating binding ring in the ring-closing direction, and the fitting shaft portion and the fitting hole portion surely coincide with each other. By pressing the top of the binding shaft in this state, the ring closing operation can be easily performed, which is extremely convenient for use. In addition, a right-angled portion, which comes into pressure contact with the outer side surface of the base plate during rotation, is provided on a part of the peripheral surface of the sliding contact piece of the rotary binding rod to provide moderation to the undulating motion of the rotary binding rod. When documents are bound in the fixed binding rod in the closed state, there is no fear that the rotating binding rod will fall over undesirably and the binding operation will be inconvenient.Furthermore, the receiving part where the fitting hole part inclines upward And an engaging portion that narrows inward at its lower end and an engaging hole that engages the bulging portion, and the fitting shaft portion is inserted into the engaging hole through the engaging portion of the fixed binding rod. Since it is formed from a bulging portion that is press-fitted and a slit that imparts elasticity, when the rotating binding rod and the fixed binding rod are securely fitted together, when carrying a document or the like in a bound state, This has the advantage that the rotating binding is unlikely to be released from the fixed binding due to the weight of documents.

[Brief description of drawings]

The drawings show an embodiment of the present application. FIG. 1 is a perspective view of the whole body, FIG. 2 is a front view of the whole body with a part cut away, FIG. 3 is a front view of a vertical section of a base plate, and FIG. Side view of base plate, fifth
The drawing is a front view of the rotary binding with a part cut away, FIG. 6 is a side view of the rotary binding, and FIG. 7 is a longitudinal sectional view taken along the line I-I of FIG.
FIG. 9 is an enlarged bottom view of the main part with a part cut away, and FIG. 9 is a front view of the whole part with a part cut away in another embodiment. In the figure, (1) is a base plate, (2) and (2) 'are side surfaces, and (4)
Is a fixed binding rod, (5) is a receiving portion, (6) is a locking portion, (7)
Is an engaging hole, (8) is a fitting hole portion, (9) is a locking portion, (10)
Is a bearing piece, (11) is a taper, (12) is a rotary binding rod, (13)
Is a rotating shaft, (14) is a right angle part, (15) is a sliding contact piece, (16) is a bulge part, (17) is a slit, (18) is a fitting shaft part, and (19).
Is a binding axis and (20) is a cut surface.

Claims (6)

[Scope of utility model registration request] 1. An upper surface of one side edge at both end positions in the longitudinal direction,
A fixed binding rod having a fitting hole at the upper end is erected, and at each position on the other side surface in the longitudinal direction facing the fixed binding rod, a protruding L-like shape is opened and opened at the bottom surface C A base plate having a pair of left and right bearing pieces, each of which has a character-shaped fitting portion, respectively, and
At both ends of the rotary shaft rotatably supported by the fitting portions of the pair of bearing pieces, sliding contact pieces which are in sliding contact with the outer edges of the bearing pieces are respectively provided, and at the center and at the free end, the sliding contact pieces are fixed. The present invention is characterized in that the base end of a downwardly U-shaped binding shaft having a fitting shaft portion to be fitted into the binding hole portion of the binding rod is constituted by a rotary binding rod formed by projecting in an orthogonal shape. A binding tool. 2. The binding tool according to claim 1, wherein a part of the peripheral surface of the sliding contact piece is provided with a right angle portion which comes into pressure contact with the side surface of the base plate during rotation to impart a moderation to the undulating motion of the binding shaft. 3. The fitting hole portion is formed of a conical receiving portion, a small-diameter locking portion, and a slightly expanded diameter engaging hole, and the fitting shaft portion is the locking portion. The binding device according to claim 1 or 2, wherein the binding device is formed of a bulge portion that is pressed by the bulge and engages with the engagement hole, and a slit that imparts elasticity. 4. The binding device according to claim 1, 2 or 3, wherein the bearing piece extends outward from a side surface of the base plate, extends downward from an end portion of the base plate, and has a locking portion provided on an inner surface of the tip. . 5. The binding device according to claim 1, 2, 3 or 4, wherein the horizontal top of the rotary binding rod is cut flat to form a downward D-shaped section. 6. The binding device according to claim 4, wherein the vertical surfaces of the pair of bearing pieces are each formed with a taper that expands from the inner end toward the outer end.