JP4165892B2 - Binder bracket and binder - Google Patents

Description

  The present invention relates to a binder metal fitting and a binder that presses and binds one end of a file object, and particularly relates to a binder that can be pressed strongly and easily by effectively utilizing a screw mechanism.

  Conventionally, the binder metal fittings mounted on the binder include a two-hole binder metal fitting filed through two rods or a flexible band member in two holes formed at the end of a file object such as a document, There is a pressing-type binder metal fitting that presses and clamps the left end of the file object without forming a hole in the end of the file object. The present invention relates to a pressure-type binder metal fitting and a binder incorporating the binder metal fitting.

  In the case of the two-hole type binder metal fitting, it is troublesome to form a pair of holes at the left end portion of the file object, the file object is damaged by the hole, and the attachment / detachment of the file object is troublesome.

  Conventionally, as a press-type binder metal fitting, a base plate fixed to a cover, a press plate, a parallel link mechanism that connects the press plate to the base plate, a lever member, a torsion spring connected to the parallel link mechanism and the lever member, etc. Binder fittings made of binders have been widely put into practical use.

  With this type of binder metal fitting, it is possible to file up to 3 cm thick file objects, but in order to make a binder object for filing thicker file objects, a parallel link mechanism In addition, it is necessary to increase the size of the lever member, torsion spring, and the like, which reduces the practicality such as an increase in manufacturing cost.

  On the other hand, the present applicant has proposed a metal fitting for a binder (file pressing device) as shown in Patent Document 1. The binder metal fitting includes a base plate, a pressing plate, a pair of trapezoidal leg-shaped link members that connect the base plate and the pressing plate, an an inner mechanism that guides the lower ends of these link members in a horizontal direction, It has a ratchet mechanism that can be locked so that the lower end portion of the link member does not move in the phase approaching direction, a release mechanism that releases the ratchet mechanism, and the like.

  In this binder metal fitting, the guide mechanism that movably guides the lower ends of the pair of link members must be controlled so that the pair of link members do not tilt from the vertical plane. It becomes complicated and increases production costs. In addition, the number of parts increases as a whole, and a long base plate and guide mechanism and a pair of link members having a long and high strength and rigidity are required, so that the overall size is increased and the manufacturing cost is increased. In addition, when a thick file object is filed, it is difficult to obtain a strong pressing force because the pair of link members are close to a right angle with the base plate.

  The metal fitting for a binder described in Patent Document 2 has an extendable screw shaft (a lower screw shaft and an upper screw shaft screwed to the lower screw shaft) provided upright on a base plate, and an upper end of the screw shaft. The gear box includes a screwed gear box, a worm wheel fixed to the upper end of the screw shaft, a worm gear meshed with the worm wheel and mounted on the gear box, a handle for manually rotating the worm gear, and the like.

  The metal fitting for the binder described in Patent Document 3 is a base plate, a screw shaft erected on the base plate, a horizontal adjustment plate through which the screw shaft passes, and a pair fixed to the adjustment plate on both sides of the screw shaft. A pair of leaf springs whose upper ends are locked to the screw shaft, a horizontal cam shaft supported by the bearing of the adjusting plate, an eccentric roller cam fixed to the tip of the cam shaft, and the middle of the cam shaft And an elliptical plate cam fixed to the base end of the cam shaft, which can open and close a pair of plate springs.

The eccentric roller cam is brought into contact with the upper surface of the plate material on the upper surface of the file object, and the eccentric roller cam is rotated by rotating the cam shaft by the operation lever, so that the file object can be strongly pressed by the increasing action of the eccentric roller cam. ing.
JP 2001-260582 A Japanese Patent Laid-Open No. 1-210397 JP-A-1-272493

  In the binder metal fitting of Patent Document 2, a screw shaft is rotated via a worm gear mechanism or a gear box is manually rotated to raise and lower the gear box, and the file object is clamped by the gear box. Therefore, when attaching / detaching the file object, the screw shaft and the gear box cannot be rapidly rotated, and it takes time to attach / detach the file object.

  It is doubtful whether the gear box can be held in a horizontal posture against the rotational moment acting on the gear box due to the reaction force acting on the file object with the file object clamped. The metal fitting for the binder has many parts such as a screw shaft, a worm gear mechanism, and a gear box, has a complicated structure, and is very expensive to manufacture.

  The metal fitting for binder of patent document 3 does not press a file target object with the fastening force of a screw mechanism, but presses a file target object with the increasing action of an eccentric roller cam. There is no disclosure about a mechanism for holding the adjustment plate in a horizontal posture in a state where the file object is pressed. This metal fitting for binder has a large number of parts, has a complicated structure, is expensive to manufacture, and cannot be practically used.

  Conventionally, the reason why binder metal fittings using a screw mechanism have not been widely put into practical use is that it is assumed that it is difficult to manually rotate the nut member for pressing manually, and while guiding the screw shaft, When raising and lowering the pressing member that presses the file object, it is difficult to raise and lower the pressing member smoothly because the pressing member and the thread of the screw shaft interfere with each other. The left end of the file object is attached to the two screw shafts. It is presumed that, for example, the left end of the file object is damaged when pressed in a contact state.

The binder metal fitting according to claim 1 is a binder metal fitting that presses and binds one end of a file object such as a document, and a horizontal base plate in a posture when the file object is attached and detached, and perpendicular to the base plate. A standing rod member, a male screw portion formed over substantially the entire length of at least a portion of the circumferential surface of the rod member, and a file formed over the entire length of the side surface of the rod member. A pressing member having a vertically smooth guide surface for receiving an end of an object, a guided hole through which the rod member is slidably inserted, and a pressing surface for pressing the file object, the rod member; A pressing member that is movable in parallel in the vertical direction by the guiding action of the guided hole and that holds the angle formed by the pressing surface and the rod member in a state of pressing the file object; An operation nut member that is screwed into the screw portion of the rod member on the upper side of the pressure member and can be manually driven to rotate toward the base plate is provided. is there.

  In this binder metal fitting, when the file object is mounted and pressed, the end of the file object is sandwiched between the base plate and the pressing surface of the pressing member, and the operation nut member is manually rotated. The pressing member is pressed toward the base plate to bring the file object into a clamped state. When the file object is taken out, the operation nut member is loosened, the desired file object is taken out, and then the file object is clamped in the same manner as described above. In a state where no pressing load is applied to the operation nut member, the operation nut member can be rapidly rotated manually, so that the file object can be attached and detached easily and efficiently.

  Here, you may employ | adopt the following various structures for the said metal fitting for binders.

  In the first aspect of the present invention, the rod member is formed in a substantially square shape with a horizontal section having an arcuate corner, and the male screw portion is formed at four corners of the rod member (invention 2).

  In the invention of claim 2, the inner wall surface of the guided hole is formed with a tilt restricting portion for maintaining an angle formed between the pressing surface and the rod member at a substantially right angle in a state of pressing the file object. The horizontal direction of the guided hole is formed in a square so that the male screw portion of the rod member and the pressing member do not interfere with each other (Claim 3).

The invention according to any one of claims 1 to 3 , wherein the rod member is provided with a pair of rod members disposed at a predetermined interval, and the pair of rod members through which the pair of rod members are inserted respectively. the guide hole is formed, respectively screwed a pair operating nut member is provided on the male screw portion of the pair of rod members as the operation nut member (claim 4).

In one of Claims 1-3, a pair of rod member arrange | positioned at predetermined intervals as said rod member is provided, and a pair of press member corresponding to a pair of rod member as said press member is provided. provided, respectively screwed a pair operating nut member is provided on the male screw portion of the pair of rod members as the operation nut member (claim 5).

In any one of Claims 1-3 , the said pressing member is a plate-shaped main-body board part, and the thick board part formed integrally with this main-body board part, Comprising: A to-be-guided hole is formed, and It is pressed by the operating nut member and a thick portion (claim 6).

The invention according to any one of claims 1 to 3 , wherein the pressing member is a plate-shaped main body plate portion and a cylindrical portion formed by press molding integrally with the main body plate portion, and the guided hole has a guide hole. are formed is pressed and the operation nut member having a tubular portion (claim 7).

In any one of the claims 1-7, wherein the lower end portion of the rod member is threaded holes in the vertical direction to open the lower end is formed, the rod member, said screw is inserted from below into the circular hole in the base plate Removably fixed to the base plate by a screw member screwed into the hole (claim 8 ).

The binder of claim 9, in a binder to bind to press the end portion of the file object documents, and cover member having a horizontal rear cover in position when attaching and detaching the file object, according to claim 8 And the base plate of the binder metal fitting is fixed to the inner surface of the back cover of the cover member.

  The binder has a cover member, and the cover member has a horizontal back cover in a posture when attaching and detaching the file object, and the base member is fixed to the back cover, and the rod member and the pressing member are fixed to the base member. It is equipped with a member and a nut member for operation. Since the operation when the file object is clamped or released by the binder is the same as that of the binder metal fitting of claim 1, the description thereof is omitted.

According to the metal fitting for a binder of claim 1, the pressing member has a guided hole through which the rod member is slidably inserted, and a pressing surface for pressing the file object, and the pressing member is directed vertically to the rod member. The pressing member can be driven to be pressed by an operation nut member screwed into the male screw portion of the rod member. When attaching the file object, attach the end of the file object under the pressing member, and then manually rotate the operating nut member to abut against the pressing member. The file object can be quickly and powerfully clamped by manually rotating strongly.
Even when the end of the file object moves downward relative to the guide surface formed on the rod member when the file object is pressed, the end of the file object is smooth because the guide surface is a smooth plane. Will not hurt.

  When removing the file object, manually loosen the operation nut member a little, then the file object can be easily and quickly removed, and then the operation nut member is manually rotated strongly as before. Thus, the file object can be quickly and strongly clamped. Since the pressing member can be translated up and down with respect to the rod member and the file object is pressed, the angle formed by the pressing surface of the pressing member and the rod member is held at a substantially right angle so that the file object is clamped. The mechanism to do becomes simple. This binder metal fitting has a small number of parts, has a simple structure, and can be manufactured at low cost.

According to the second aspect of the present invention, the rod member has a substantially square shape with a horizontal section having an arc at the corner, and male screws are formed at the four corners of the rod member. Since the rotation in the horizontal direction can be restricted and the frictional resistance acting on the operation nut member from the male screw can be reduced, the operation nut member can be smoothly rotated. Since the plane (guide surface) that receives the left end of the file object can be formed on the right side of the rod member, even if the left end of the file object is pressed against the rod member, the left end of the file object is damaged. There is no.

  According to the third aspect of the present invention, the tilting restriction portion formed on the inner wall surface of the guided hole of the pressing member holds the angle formed by the pressing surface and the rod member at a substantially right angle in the state of pressing the file object. be able to. Since the guided hole has a square horizontal cross section, the male screw portion of the rod member and the pressing member do not interfere with each other, and the pressing member can be raised and lowered smoothly.

According to the invention of claim 4 , since the pair of rod members, the one pressing member, and the pair of operation nut members are equipped, the left end of the file object can be positioned by the pair of rod members, The file object can be strongly pressed by a pair of operation nut members.

According to the invention of claim 5 , since the pair of rod members, the pair of pressing members, and the pair of operation nut members are equipped, the left end of the file object can be positioned by the pair of rod members. The file object can be strongly pressed by a pair of operation nut members. Each pressing member can be downsized, and the pressing member can be moved up and down with a small operation force, and the pair of pressing members can be downsized as a whole.

According to the invention of claim 6 , the pressing member has a plate-like main body portion and a thick plate portion integrated with the main body portion, and the guide plate is formed in the thick plate portion. This is advantageous in forming the tilt restricting portion on the inner wall surface of the guided hole, and is also advantageous in terms of strength.

According to invention of Claim 7 , since a press member has a plate-shaped main-body part and the cylindrical part press-molded integrally with this main-body part, a press member is formed by press-molding a metal plate. Can be made.

According to the eighth aspect of the invention, the lower end portion of the rod member is formed with an upright screw hole that opens to the lower end, and the rod member is inserted into the circular hole of the base plate from below and screwed into the screw hole. Since the user can fix the rod member to the base plate with screws, the metal fittings for the binder are packed with the rod member separated from the base plate. It can be stored in a case and transported.

The binder of the invention of claim 9, the cover member having a back cover, since those digits set the binder bracket according to any one of claims 1-8, basically the same as defined in Claim 1-8 The effect of.

  The binder metal fitting of the present invention is a binder metal fitting that presses and binds one end portion of a file object such as a document, and a horizontal base plate in a posture when the file object is attached and detached, and stands vertically to the base plate. A rod member, a guided hole through which the rod member is slidably inserted, a pressing member having a pressing surface for pressing the file object, and a screw member that is screwed into the male screw portion of the rod member to drive the pressing member. Possible operation nut member. The pressing member can be translated in the vertical direction by the guiding action of the rod member and the guided hole, and is configured to hold the angle formed by the pressing surface and the rod member at a substantially right angle in a state in which the file object is pressed. Yes.

  The binder of this invention equips the inner surface of the back cover of the cover member with the binder metal fitting described above. Examples of the present invention will be described below.

  The binder metal fitting of Example 1 is demonstrated based on FIGS.

  As shown in FIGS. 1 to 5, the binder metal fitting 1 is used by being mounted on a binder having a cover member, but the binder metal fitting 1 can be used alone. The binder metal fitting 1 includes a base plate 2, a pair of rod members 3 erected on the base plate 2, a pressing member 4, a pair of operation nut members 5, and the like.

  The base plate 2 is a rectangular metal plate member elongated in the direction along the left end portion of the file object P such as a document. For example, a stainless steel plate, a plated steel plate having a thickness of about 0.6 to 1.0 mm, or It consists of a magnesium alloy plate manufactured by injection molding. The size of the base plate 2 is, for example, 35 mm × 90 mm. The base plate 2 is horizontal in the posture at the time of attaching and detaching the file object P, and will be described below with reference to the posture of the base plate 2 and the posture (the state of FIG. 4) as the front-rear and left-right reference. .

  The pair of rod members 3 are arranged at predetermined intervals in the length direction of the base plate 2, and these rod members 3 (for example, 40 to 80 mm in length) are erected vertically to the base plate 2. These rod members 3 may be made of steel, but the rod member 3 of this embodiment is an injection-molded product made of a magnesium alloy, and the rod member 3 has a square corner with a horizontal section of about 6 to 8 mm on a side. It is formed in a partial cylindrical shape, and a male screw portion 8 is formed there. In the rod member 3, the male screw portion 8 is also formed at the time of injection molding. As shown in FIGS. 5 and 7, the lower end portion of the rod member 2 is formed with an upright screw hole 6 that opens to the lower end, and is inserted into the circular hole of the base plate 2 from below and screwed into the screw hole 6. The rod member 3 is detachably fixed to the base plate 2 by the combined screw member 7. As shown in FIGS. 1 to 3, 6, and 8, a male screw portion 8 is formed over almost the entire length on at least a part (four corners) in the circumferential direction of the peripheral surface of the rod member 3. ing.

  The rod member 3 is formed in a substantially square shape with a horizontal section having arcs at the corners, and male screw portions 8 are formed at four corners of the rod member 3, and above the pressing member 4, The operation nut member 5 is screwed into the four male screw portions 8. Smooth planar guide surfaces 3 a and 3 b are formed on the left and right surfaces of the rod member 3, and smooth planar guide surfaces 3 c and 3 d are formed on the front and rear surfaces of the rod member 3. Since planar guide surfaces 3a to 3d appear on the four surfaces of the rod member 3, it is preferable in terms of appearance design.

  The pressing member 4 may be made of steel, but the pressing member 4 of the present embodiment is an injection molded product made of a magnesium alloy. The size of the pressing member 4 in plan view is substantially the same as that of the base plate 2 and is, for example, 30 mm × 90 mm. The pressing member 4 includes a pair of guided holes 9 through which the pair of rod members 3 are slidably inserted, and a flat pressing surface 10 for pressing the file object P. The pressing member 4 can be translated in the vertical direction by the guiding action of the pair of rod members 3 and the pair of guided holes 9, and is formed by the pressing surface 10 and the rod member 3 in a state in which the file object P is pressed. It is comprised so that an angle may be hold | maintained at substantially right angle.

  The pressing member 4 includes a plate-like main body plate portion 4a (for example, a thickness of about 1.0 to 2.0 mm) and a pair of thicknesses in a square shape in plan view formed integrally on the upper side of the main body plate portion 4a. The plate portion 4b includes a pair of thick plate portions 4b corresponding to the pair of rod members 3. The size of the thick plate portion 4b is, for example, 17 mm × 17 mm, and the thickness of the thick plate portion 4b is 2 to 3 times the thickness of the main body plate portion 4a. Each thick plate portion 4 b is formed with a guided hole 9 having a horizontal cross section penetrating in the vertical direction, and this thick plate portion 4 b becomes a portion pressed from above by the operation nut member 5. When the file object P is pressed by the pressing member 4 to be in a clamped state, a reaction force F from the file object P acts as shown in FIG. 8, and the pressing member 4 tries to be separated from the file object P. Since the rotational moment M acts, as shown in FIG. 7, the angle formed between the pressing surface 10 of the pressing member 4 and the rod member 3 is applied to the inner wall surface of the guided hole 9 when the file object P is pressed. Tilt restricting portions 9a and 9b are formed for holding at substantially right angles.

  A small sliding gap (for example, a 0.1 to 0.2 mm gap) is formed between the left and right guide surfaces 3a and 3b of the rod member 3 and the left and right inner wall surfaces of the guided hole 9. Of the inner wall surface of the hole 9, the left wall surface and the right wall surface constitute the tilt restricting portions 9a, 9b. On the other hand, when the pressing member 4 is moved up and down, the front and rear guide surfaces 3c and 3d and the guided hole 9 are arranged so that the pressing member 4 can be moved up and down smoothly even if the pressing member 4 is slightly tilted back and forth. A sliding gap somewhat larger than the small sliding gap is formed between the inner wall surface and the inner wall surface.

  In order to prevent the male screw portion 8 of the rod member 3 and the pressing member 4 from interfering when the pressing member 4 is moved up and down with respect to the rod member 3, the male screw portion 8 is formed in the guided hole 9 as shown in FIG. It faces the corner space of the guided hole 9.

  As shown in FIGS. 1 to 3, an operating nut member 5 is screwed onto the male threaded portion 8 of the rod member 3 on the upper side of the pressing member 4, and the operating nut member 5 is manually rotated. The pressing member 4 is configured to be driven to be pressed toward the base plate 2. The operation nut member 5 may be made of a material such as steel, brass, or synthetic resin. However, the operation nut member 5 of this embodiment is an injection-molded product made of a magnesium alloy (however, a screw hole is machined) )).

As shown in FIG. 4, the operation nut member 5 has four projecting operation portions 5 a, and the four operation portions 5 a are rotated with fingers while the operation nut member 5 is screwed to the rod member 3. It is configured to drive. Since the male screw portion of the rod member 3 is composed of the four male screw portions 8 at the corners of the rod member 3, the frictional force acting between the male screw portion 8 and the operation nut member 5 is reduced. Therefore, in the state where the pressing load is not acting, the operation nut member 5 can be smoothly and rapidly rotated. Operating nut member 5, as shown in FIG. 4, is designed UeNozomi preferable to form sized to fit within the scope of the thick plate portion 4b of the pressing member 4. However, the operation part 5a may protrude outside the thick plate part 4b.

  Since the male threaded portion 8 of the rod member 3 is formed not at the entire circumference but at the four corners, the contact area where the operational nut member 5 contacts the male threaded portion 8 is reduced. The thickness of 5 is increased so that the number of screw threads meshing with the male screw portion 8 is increased.

  The shape of the thick plate portion 4b and the shape of the operation nut member 5 can be appropriately changed. For example, the plan shape of the thick plate portion 4b is formed in a triangle, and the operation nut member 5 has three protruding operations. A part may be formed.

  The operation and effect of the binder metal fitting 1 described above will be described.

When the file object P such as a document is mounted, the left end portion of the file object P is mounted between the base plate 2 and the pressing member 4 and the left end surface of the file object P is contacted with the pair of rod members 3. after positioning by contact, by suddenly rotated into engagement side operating nut member 5 in the right hand is brought into contact with the pressing member 4, a file object by strong rotational drive then operating nut member 5 with the right hand P can be clamped quickly and strongly.

  When removing the file object P, the operation nut member 5 is loosened manually, and then the file object P can be easily and quickly removed, and then the operation nut member 5 is manually rotated in the same manner as described above. By driving, the file object P can be quickly and strongly clamped. In a state where the pressing member 4 can be moved up and down parallel to the rod member 3 and the file object P is pressed, the angle formed between the pressing surface 10 of the pressing member 4 and the rod member 3 is maintained at a substantially right angle. Since it comprised, the press mark does not remain in the file target object P, but the mechanism which clamps the file target object P becomes simple. The binder metal fitting 1 has a small number of parts, a simple structure, and can be manufactured at low cost.

  Since the horizontal cross section of the rod member 3 is a substantially square with the corners arced, the rod member 3 can restrict the rotation of the pressing member 4 in the horizontal direction, and the four corners of the rod member 3 are externally threaded. Since the portion 8 is formed, the frictional resistance acting on the operation nut member 5 from the male screw portion 8 is also reduced, and the operation nut member 5 can be smoothly rotated.

  When the right side surface of the rod member 3 is formed on the guide surface 3b and the left end of the file object P is received by the guide surface 3b, when the file object P is pressed, the left end of the file object P is the guide surface. Even if it moves downward relative to b, the left end of the file object P is not damaged because the guide surface b is a flat surface.

  A guided hole 9 is formed in the thick plate portion 4 b of the pressing member 4, and tilt restriction portions 9 a and 9 b are formed on the inner wall surface of the guided hole 9, and the file object P is moved by the tilt restriction portions 9 a and 9 b. In the pressing state, the angle formed by the pressing surface 10 of the pressing member 4 and the rod member 3 can be held at a substantially right angle. Since the guided hole 9 has a square horizontal cross section and the male screw portion 8 faces the corner space, the male screw portion 8 of the rod member 3 and the pressing member 4 do not interfere with each other. Can be raised and lowered smoothly. Between the rod members 3, the left end portion of the pressing member 4 projects leftward from the left end of the file object P, and a grip portion 4 c suitable for gripping with a finger when the pressing member 4 is lifted is formed. However, the grip portion 4c can be omitted.

  In this binder metal fitting 1, the pressing member 4 is pressed and driven toward the base plate 2 by a screw mechanism including the operation nut member 5 and the male screw portion 8 of the rod member 3. A clamping force can be generated. Therefore, the binder metal fitting suitable for the file of the thick file object P can be realized. Moreover, the operation for attaching and detaching the file object P is simple and can be performed quickly.

  Since the rod member 3 is detachably fixed to the base plate 2 with the screw member 7, the user can fix the rod member 3 to the base plate 2, so that the binder can be removed with the rod member 3 removed from the base plate 2. The metal fitting 1 can be stored in a packing case and transported. The packaging case can be reduced in size and the transportation cost can be reduced. Since at least the rod member 3, the pressing member 4 and the operation nut member 5 are made of an injection molded product of magnesium alloy, the binder metal fitting 1 can be reduced in weight, and the manufacturing cost can be significantly reduced.

  Since the rod member 3 can be configured to be long, a metal fitting for a binder that can strongly clamp the thick file object P can be put to practical use.

  Next, the binder metal fitting 1A of Example 2 will be described with reference to FIGS.

  The binder metal fitting 1A is similar to the binder metal fitting 1 of the first embodiment except that the pressing member is configured as a pair of pressing members 4A corresponding to the pair of rod members 3. Therefore, only the different configuration will be described. The pressing member 4A is formed in a substantially square shape in plan view, and the pressing member 4A has a main body plate portion 4d and a thick plate portion 4b. The size of the pressing member 4A is, for example, 30 mm × 30 mm, and the size of the thick plate portion 4b is, for example, 17 mm × 17 mm.

  Since this pressing member 4A is small and can be easily moved up and down, the sliding clearance between the front and rear guide surfaces 3c, 3d of the rod member 3 and the inner wall surface of the guided hole 9 is larger than that of the first embodiment. Also, it may be formed narrowly. Since the pair of pressing members 4A can be reduced in size and weight as a whole, it is advantageous in terms of reducing manufacturing costs. In addition, the same operations and effects as those of the binder metal fitting 1 can be obtained. The pressing member 4A does not rotate in the horizontal direction.

Next, Example 3 will be described with reference to FIG.

Pressing member 4B, for example thickness, is formed of a steel plate of 0.6 to 1.0 mm, the portions corresponding to a pair of rod members, by press molding, the cylindrical portion 4i which form the guide hole The rod member is integrally formed, and the rod member is inserted into the guided hole with a sliding gap . The height dimension of the cylindrical portion 4i is, for example, 3.0 to 5.0 mm, and the tilt regulating portions 9f and 9g are formed by the left wall surface and the right wall surface of the inner wall surface of the cylindrical portion 4i. The tilt regulating part 9f, since the tilting of the pressing member 4B is regulated by 9 g, even in a state of clamping the file object P by the pressing member 4B, the pressing surface 10B and substantially perpendicular the angle of the rod member of the pressing member 4B Retained.

It will now be described with reference to FIG. 13 for a binder for metal 1E of Example 4.

  The binder metal fitting 1E is obtained by changing the structure of the rod member 3 and the guided hole 9 in the binder metal fitting 1 of the first embodiment, and other than that is the same as the first embodiment. The same components are denoted by the same reference numerals, and only different structures will be described.

Planar guide surfaces 3e and 3f extending over the entire length are formed on the left side and the right side of the rod member 3E, and a portion of the peripheral surface of the rod member 3E other than the guide surfaces 3e and 3f is a partial cylindrical surface. A male threaded portion 8E is formed. The guide hole 9E of the pressing member 4 E is formed on slidable hole rod member 3E may have small sliding clearance, and tilt regulating part is formed in the left wall and the right side surface of the inner wall surface of the guide hole 9E Yes. The rod member 3E can be formed of a magnesium alloy injection molded product in which the male screw portion 8E is also integrally formed.

  In the case of this rod member 3E, since the circumferential width of the male screw portion 8E is large, it is advantageous because the thickness of the operation nut member 5 can be reduced, and the guide surface 3f of the pair of rod members 3E can be used for file processing. By receiving the left end portion of the object P, it is possible to file without damaging the file object P.

Here, the example which changes the said Examples 1-4 partially is demonstrated.
[1] Instead of configuring the thick plate portion 4b of the pressing members 4 , 4A and 4E as an integral part of the main body plate portion 4a, the thick plate portion 4b may be welded to the main body plate portion 4a by spot welding or the like. .
[2] In order to increase the frictional force between the pressing surfaces 10 , 10B of the pressing members 4 , 4A , 4B and the file object P, the pressing surface is formed on a friction surface having a fine unevenness or a satin pattern other than a smooth surface. It is also desirable that a rubber coat layer may be formed on the pressing surface.
[3] The binder metal fittings 1 , 1 </ b> A, 1 </ b> E do not necessarily need to have a pair of rod members 3 , 3 </ b> E, and in addition to the base plate 2, one rod member 3 , 3 </ b> E, one press member 4A, 4B, 1 single operation nut member 5, etc. the may be configured provided.
[4] the rod member 3, 3 E a may be composed of a shirttail possible plurality of divided rod members in screw mechanism.

In this case, a screw portion that can be screwed into the screw hole is formed at the upper end portion of the split rod member, or a screw hole similar to the screw hole 6 is also formed at the upper end portion of the split rod member, The split rod member is configured to be added using a small-diameter screw shaft (bolt member).
[5] In addition, those skilled in the art can make various modifications without departing from the scope of the binder metal fitting of the present invention, and the present invention includes such modifications.

The fifth embodiment relates to the binder 20 in which the binder metal fitting 1 of the first embodiment is incorporated in the cover member 21 , but the binder metal fitting 1 itself is the same as that of the first embodiment, and the description thereof is omitted. To do. As shown in FIGS. 14 and 15 , the cover member 21 of the binder 20 is made of a cardboard sheet material or a synthetic resin sheet material. The cover member 21 includes a back cover 22 that is larger than the A4 size, a back cover 23 that is continuous with the left end of the back cover 22, and a front cover 24 that is continuous with the left end of the back cover 23.

Back side cover 22 of the cover member 21 is horizontal in orientation when attaching and detaching the file object P, the following description describes this attitude as the reference. A fold 25 is formed at the boundary between the back cover 22 and the spine 23, and a fold 26 is also formed at the boundary between the spine 23 and the front cover 24. The binder metal fitting 1 is attached to the center portion in the front-rear direction of the left end portion of the back cover 22. The base plate 2 of the binder metal fitting 1 is fixed to at least the center part in the front-rear direction of the inner surface of the left end portion of the back cover 22 with at least two rivets. The width of the spine 22 is formed to be somewhat larger than the height of the rod member 3.

When the file object P is filed in the binder 20, the file object P may be set and filed as shown by a two-dot chain line in FIG. 15 , but the thickness of the file object P is increased. Then, as shown by a three-dot chain line, it is desirable to file the file object P so that the front end of the file object P is aligned with the front end of the back cover 22. This is to reduce the weight of the file object P supported by the cover member 21.

Here, the example which changes the said Example 5 partially is demonstrated.
[1] In the binder 20, any one of the binder metal fittings 1 </ b> A and 1 </ b> E is provided on the cover member 21 instead of the binder metal fitting 1 of the first embodiment.
[2] The cover member 21 of the binder 20 may include only the back cover 22 as a thick mount. In this case, the back cover 23 and the front cover 24 from the cover member 21 can be omitted. [3] In addition, those skilled in the art can implement various modifications without departing from the scope of the binder of the present invention, and the present invention includes such modifications.

1 is a front view of a binder metal fitting of Example 1. FIG. It is a right view of the metal fitting for binders of FIG. It is a left view of the metal fitting for binders of FIG. It is a top view of the metal fitting for binders of FIG. It is a bottom view of the metal fitting for binders of FIG. A VI-VI shear plane view of FIG. It is the VII-VII sectional view taken on the line of FIG. It is a front view of the metal fitting for binders of FIG. 1 (file state). It is a right view of the metal fitting for binders of Example 2. It is a top view of the metal fitting for binders of FIG. FIG. 10 is a view corresponding to FIG. 6 of the binder metal fitting of FIG . 9 . 6 is a cross-sectional view of a pressing member of a binder metal fitting of Example 3. FIG. FIG. 6 is a view corresponding to FIG. 6 of the binder metal fitting of Example 4 . 6 is a front view of a binder of Example 5. FIG. It is a fragmentary plan view of the binder of FIG.

Explanation of symbols

1, 1A, 1E binder brackets 2 base plate 3, 3 E rod members 3a, 3b, 3e, 3f guide surface 4, 4A, 4B, 4E pressing member 4a, 4d, 4e main plate portion 4b, 4f thick plate portion 5 Operation nut member 6 Screw hole 7 Screw member 8 , 8 E Male thread portion 9, 9E Guided holes 9a, 9b , 9f, 9g Tilt restricting portions 10, 10B Pressing surface
20 binder P file object

Claims (9)

In binder metal fittings that press and bind one end of file objects such as documents,
A base plate that is horizontal in the posture for attaching and detaching the file object;
A rod member erected vertically on the base plate;
A male thread portion formed over substantially the entire length of at least a portion of the circumferential surface of the rod member;
A guide surface that is formed over the entire length of the side surface of the rod member and that receives the end of the file object and is smooth in the vertical direction
The rod member is a pressing member having a guided hole through which the rod member is slidably inserted and a pressing surface for pressing the file object, and can be translated in the vertical direction by the guiding action of the rod member and the guided hole. A pressing member that holds the angle between the pressing surface and the rod member at a substantially right angle in a state of pressing the file object;
An operation nut member that is screwed into the screw portion of the rod member on the upper side of the pressing member and can be manually driven to rotate by pressing the pressing member toward the base plate,
A binder metal fitting characterized by comprising:   2. The binder member according to claim 1, wherein the rod member is formed in a substantially square shape with a horizontal section having an arcuate corner portion, and the male screw portion is formed at four corner portions of the rod member. Hardware.   The inner wall surface of the guided hole is formed with a tilt restricting portion for maintaining an angle formed by the pressing surface and the rod member at a substantially right angle in a state in which the file object is pressed, and a male screw portion of the rod member The metal fitting for a binder according to claim 2, wherein the guided hole has a square horizontal cross section so that the pressing member does not interfere with the guide member. A pair of rod members arranged at predetermined intervals as the rod members are provided,
The pressing member is formed with a pair of guided holes through which a pair of rod members are inserted,
The binder nut according to any one of claims 1 to 3, wherein a pair of operation nut members screwed into male screw portions of a pair of rod members are provided as the operation nut members. Hardware. A pair of rod members arranged at predetermined intervals as the rod members are provided,
A pair of pressing members corresponding to a pair of rod members is provided as the pressing member,
The binder nut according to any one of claims 1 to 3, wherein a pair of operation nut members screwed into male screw portions of a pair of rod members are provided as the operation nut members. Hardware. The pressing member includes a plate-shaped main body plate portion, a thick plate portion formed integrally with the main body plate portion, and a thick plate portion formed with a guided hole and pressed by an operation nut member; The metal fitting for a binder according to any one of claims 1 to 3 , characterized by comprising: The pressing member is a plate-shaped main body plate portion, and a cylindrical portion formed by press molding integrally with the main body plate portion, and a cylinder formed with a guided hole and pressed by an operation nut member It has a shape part, The metal fitting for binders in any one of Claims 1-3 characterized by the above-mentioned. At the lower end of the rod member is formed a standing screw hole that opens to the lower end,
Rod member according to any one of claims 1 to 7, characterized in that it is removably secured to the base plate by screws member screwed into the screw hole is inserted from below into the circular hole in the base plate Metal fittings for binders. In a binder that presses and binds one end of a file object such as a document,
A cover member with a horizontal back cover in the posture when attaching and detaching the file object;
A binder metal fitting according to any one of claims 1 to 8,
The base plate of the binder metal fitting is fixed to the inner surface of the back cover of the cover member .