CN211031881U - Ring binder - Google Patents

Abstract

The present invention relates to a ring binder, and more particularly, to a ring binder which can be easily opened and closed with a small force. The utility model provides an annular loose-leaf binder is formed by first ring and second ring, a side end of first ring and second ring is fixed and another side end is formed with first joint portion and second joint portion with the mode that can separate each other and combine through hinge portion hinge, first ring and second ring are formed by the curved plate that corresponds each other.

Description

Ring binder

Technical Field

The present invention relates to a ring binder, and more particularly to a ring binder which can be easily opened and closed with a small force.

Background

In general, a ring binder is formed in a form in which semicircular rings that are engaged with each other in an uneven manner are provided on a pair of carrier rails (carrier rails), and is formed in such a manner that the semicircular rings are opened and closed by the action of springs inside the pair of carrier rails, so that various papers, documents, and the like can be bound and stored and used.

The ring binder is integrally formed on the back and back of the cover, and is configured as an openable semicircular ring binder in which metal or resin is fixed to the back of the cover. The semicircular rings are opened and closed by a complicated spring mechanism inside the pair of carrier rails, and thus, a large number of parts are required, and the structure and assembly of the parts are complicated, which causes a problem of difficulty in manufacturing.

In order to solve the above problems, various forms such as a ring binder having no single part of a document cover are disclosed in japanese laid-open patent No. 2001-018571.

The ring binder of japanese laid-open patent No. 2001-018571 is configured in a ring shape by bending and molding a resin material band in a comb tooth form, and the paper is coupled by drilling a hole in the paper and inserting the resin material band in the comb tooth form into the hole.

Such a ring binder requires a separate and very complicated binding means for binding, and it is not easy to replace the binder and it is difficult to reuse it, and there is a problem in that the binding is not firm because the bands of the resin material are bound.

Further, japanese patent No. 5117531 provides an iron tool that can be easily used by easily opening and closing an iron rod, and has a shaft portion that becomes a center when opening and closing the iron rod portion, the bearing portion, and the iron rod, but has a problem that the coupling structure is very complicated due to a complicated opening and closing mechanism, and productivity or assembly performance is deteriorated.

Further, the iron bar of japanese patent No. 5117531 has a disadvantage that the durability of the opening and closing mechanism cannot be sufficiently ensured, and thus the reliability of the finished product for consumers is lowered.

As another ring binder, a card ring type ring binder is used, in which a card ring is formed of 2 rings having a semicircular shape, one end of the card ring is hinged by a hinge portion, and the other end is formed by a ring type coupling portion and detachably coupled to each other.

Such a ring binder in the form of a card ring is made of a wire material, such as a metal material, having a circular cross section, but the design is generally clumsy and since the elasticity of the ring itself is used, a force to the extent that the elasticity is overcome is required for opening and closing, and therefore, the opening and closing operation is laborious and difficult.

Further, when the ring binder is opened in a closed state, since the both side coupling portions need to be opened in opposite directions, a large force is required to make the opening difficult, and since the ring is in a linear form and a space for holding the ring by hand is required, the radius of the ring needs to be larger than that required when fixing paper, and when the ring is coupled, the coupling portions of the ring in a hook form need to be coupled in a state where the ring is slightly opened to both sides, which is inconvenient.

[ patent document ]

(patent document 1) Japanese laid-open patent No. 2001-018571

(patent document 2) Japanese patent No. 5117531

(patent document 3) Korean laid-open patent No. 10-2017-0084829

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the above-described conventional problems, and an object of the present invention is to provide a ring binder which can be opened and closed with a small force when opened and closed, and can be opened and closed easily and softly.

The utility model provides a ring binder, this ring binder form by first ring and second ring, a side end of first ring and second ring is passed through hinge portion hinge fastening and opposite side tip is formed with first joint portion and second joint portion with the mode that can separate each other and combine, first ring and second ring are formed by the curved plate that corresponds each other.

The hinge part is formed by a first hinge groove and a second hinge groove respectively formed on the step surfaces of the first ring and the second ring, and a hinge shaft inserted into the first hinge groove and the second hinge groove.

The first hinge groove and the second hinge groove formed at one side end of the first ring and the second ring and the first coupling portion and the second coupling portion formed at the other side end are located on different axes from each other.

The hinge shaft may be formed of a wire of a plastic material having elasticity and flexibility or a tension spring.

Furthermore, the utility model provides a ring binder, which is formed by a first ring and a second ring, one end parts of the first ring and the second ring are fixed by a hinge part in a hinged manner, and the other end parts are provided with a first combining part and a second combining part which can be combined in a manner of separating from each other, the first and second rings are formed of arc-shaped plates corresponding to each other, the hinge portion is formed of a first insertion groove, a second insertion groove, and first and second coupling wings, the first insertion groove and the second insertion groove are formed on the opposite surfaces so that one end parts of the first ring and the second ring are matched with each other, the first and second coupling wings are formed at end portions of the first and second rings, respectively, and the first ring combining piece and the second ring combining piece inserted into the first insertion groove and the second insertion groove are combined in a hinge rotating state.

The first and second coupling wings have protrusions and grooves formed on their surfaces facing each other to prevent the first and second rings from being separated from each other in a coupled state.

The lower surfaces of the first and second coupling wings are formed as inclined surfaces, respectively, so that when the first and second rings are opened, the contact surfaces of the first and second coupling wings do not interfere with each other.

The rings of the ring binder according to the present invention, which are arranged in a state corresponding to each other, are formed of arc-shaped plates, and thus are aesthetically pleasing, and can be opened and closed softly with a simple action and a small force by providing a tension spring at a hinge portion.

Further, since a large space for applying a force is not required when opening and closing the ring binder, it is not necessary to increase the diameter of the rings as in the conventional card ring.

Drawings

Fig. 1 is a perspective view of a ring binder according to a first embodiment of the present invention.

Fig. 2 is a plan view of fig. 1 in an open state.

Fig. 3 is a perspective view of a ring binder according to a modification of the first embodiment of the present invention.

Fig. 4 is a plan view of fig. 3 in an open state.

Fig. 5 is a usage state diagram of the present invention.

Description of the symbols:

10: first ring 20: second ring

12: first coupling portion 22: second joint part

14: first hinge groove 24: second hinge slot

30: hinge axis 32, 33: fixing member

42: pipe member 43: rubber ring

50: sheet 50 a: combining hole

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Fig. 1 is a perspective view of a ring binder according to a first embodiment of the present invention, and fig. 2 is a plan view of fig. 1 in an open state.

As shown in the drawings, the ring binder according to the first embodiment of the present invention includes first and second rings 10 and 20 formed in arc shapes corresponding to each other and a hinge portion to hinge-fix one side end portions of the first and second rings 10 and 20.

The first ring 10 and the second ring 20 are formed in substantially semicircular shapes, and have a circular shape when the first ring 10 and the second ring 20 are closed.

Moreover, the first ring 10 and the second ring 20 are formed with coupling portions 12 and 22, which are formed on both side surfaces of the end portions facing each other in a hook shape and are engaged with each other in a fitting manner, respectively, so that both side end portions of the first ring 10 and the second ring 20 can be detachably coupled.

The first and second rings 10 and 20 according to the first embodiment of the present invention are formed in a plate shape having a predetermined width, and when the first and second rings 10 and 20 are formed in the plate shape, a larger area can be easily grasped and grasped by hand when using the binder, compared to a ring binder formed in a conventional wire shape, and thus, the opening and closing can be performed more easily, and a very beautiful design can be made.

One-side distal end portions of the first ring 10 and the second ring 20 forming one side of the hinge portion are formed as stepped surfaces corresponding to each other, so that the hinge portions of the first ring 10 and the second ring 20 are configured to be able to be arranged in surface contact with each other if the stepped surfaces are brought close to each other. The hinge portion is substantially formed in a shape similar to a hinge.

The hinge part is formed by a first hinge slot 14 and a second hinge slot 24 respectively formed on the stepped surface of one side end portions of the first ring 10 and the second ring 20, and a hinge shaft 30 inserted into the first hinge slot 14 and the second hinge slot 24. The first hinge groove 14 and the second hinge groove 24 are formed to have a length about half the width of the first loop 10 and the second loop 20.

The hinge shaft 30 inserted into the hinge grooves 14 and 24 is formed of a tension spring, and one end or both ends of the hinge shaft 30 formed of the tension spring may be formed in a ring shape and engaged with the hinge grooves 14 and 24 to be fixed, or one end may be formed in a ring shape and the other end may be fixed by fixing members 32 and 33 such as nails, bolts, and nuts.

Instead of the tension spring, the hinge shaft 30 may be formed of a wire material made of an elastic plastic material having a tensile force.

Accordingly, in a state where the ring binder is closed by coupling the coupling portions 12 and 22 of the first and second rings 10 and 20, the coupling force of the coupling portions 12 and 22 is maintained by the tensile force of the hinge shaft 30.

In this state, if the coupling portions 12 and 22 are pushed in the opposite direction of the coupling to release the coupling, the abutting surfaces of the hinge grooves 14 and 24 are bent inward in a "Λ" shape to separate the coupling portions 12 and 22. Further, if the first ring 10 and the second ring 20 are opened to both sides, the first ring 10 and the second ring 20 are rotated to both sides around the hinge shaft 30 to open the first ring 10 and the second ring 20, and at this time, the tensile force of the hinge shaft 30 acts to restore the bent hinge grooves 14 and 24 to the original state to open them.

After the ring binder is opened in this manner and documents are sandwiched between the first ring 10 and the second ring 20, if the first ring 10 and the second ring 20 are closed to the closed position, the coupling portions 12 and 22 move along the inclined surfaces of each other to couple the hinge grooves 14 and 24, and the hinge grooves 14 and 24 are bent in a reverse v shape, and if the coupling portions 12 and 22 are completely coupled, the bent hinge grooves 14 and 24 are restored to the original state and closed.

When the ring binder is closed in this manner, the tensile force of the hinge shaft 30 acts to maintain the coupling force of the coupling portions 12 and 22.

Hereinafter, a modification of the first embodiment of the present invention will be briefly described with reference to fig. 3 and 4, focusing on differences from the preferred embodiment of the present invention.

As shown in fig. 3 and 4, the first hinge groove 14 and the second hinge groove 24 are penetrated and connected by a metal hollow pipe member 42, a repulsive member 43 such as a rubber ring, a metal elastic ring, or an elastic spring is inserted between the first hinge groove 14 and the second hinge groove 24, and both ends of the metal hollow pipe member 42 are pressed by a jig or the like, so that the first hinge groove 14 and the second hinge groove 24 can be pressed and fixed.

As shown in fig. 5, the ring binder according to the first embodiment of the present invention can be used as a notebook by forming a quadrangular or circular combination hole 50a in a plurality of sheets of paper 50, and can be used by completely unfolding each sheet of paper 50, and can provide a compact appearance.

The preferred embodiments of the present invention have been described above for illustrative purposes, but the present invention is not limited to these embodiments, and the present invention may be modified into various forms and implemented within the scope of the idea of the present invention.

Claims (1)

1. A ring-shaped loose-leaf binder is characterized in that,

the first and second rings are formed by a hinge part to fix one end of the first and second rings and a first and second connection parts to connect the other end of the first and second rings in a separable way,

the first and second rings are formed by arc-shaped plates corresponding to each other,

one end portions of the first and second rings on which the hinge portions are formed as stepped surfaces corresponding to each other, the hinge portions are formed of first and second hinge grooves formed on the stepped surfaces of the first and second rings, respectively, and hinge shafts inserted into the first and second hinge grooves,

the first hinge groove and the second hinge groove formed at one side end of the first ring and the second ring and the first coupling portion and the second coupling portion formed at the other side end of the first ring and the second ring are located on different axes from each other,

the hinge shaft is formed by a tension spring or a wire rod made of elastic and telescopic plastic materials.

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