JPH085609Y2 - Ring hook - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a ring hook having a simple structure of the same shape, which is used as a pair. The present invention relates to the provision of a ring hook for a belt, which can be surely connected and released by simply fitting it in.

(Prior Art) Many of the simple hook type buckles used for attaching and detaching belts such as bags are based on a ring and a hook. These are a ring attached to one end of the belt and a belt. The hooks attached to the ends were fitted and connected for use.

However, if the hook and the ring are engaged with each other only by engaging the hook and the ring, there is no problem if the tension state in which the hook and the ring pull each other continues. In order to maintain the engagement between the hook and the ring, a stopper is attached between the tip of the hook and the base to make the hook a pure ring so that the hook itself can be opened and closed. Or, the opening portion of an annular hook having an insertion opening portion is formed in a width smaller than the diameter of the annular portion of the ring engaged with the hook, and the elastic deformation of the hook is prevented. Utilizing this, the hook is fitted into this ring while the opening of the hook is pushed open by the annular portion of the ring,
There was a buckle, etc. that I tried to get involved.

(Problems to be solved by the invention) In such conventional hook type buckles,
All of them consist of an annular ring and hooks that fit into and are engaged with this ring, and it is necessary to design them so that they fit smoothly and accurately with each other. Therefore, there is a disadvantage that the cost of parts is relatively high.

Further, in this type of buckle, since the male and female relations are brought to the ring and the hook when they are fitted to each other, when the fitting is used, the ring and the hook are oriented or positioned uniquely to each other. It was necessary to engage both.

Further, in the conventional hook type buckles, when a stopper for preventing the hook from opening is attached to the insertion opening of the annular hook in order to prevent the hook fitted in the ring from coming off from the ring, There are problems that the structure is complicated, the molding cost is relatively high, breakage or failure is likely to occur, and further other articles or the like are easily caught.

Further, in the case of buckles in which the hook is fitted into the ring by utilizing the elastic deformation of the hook, the engagement can be easily released by a slight force acting in the direction of releasing the engagement accompanying the fitting. In order to prevent this, if the width of the insertion opening to the ring provided in the hook is too large, fitting the hook into the ring requires a considerable amount of force, which inevitably results. There was a problem that the hook was damaged.

The present invention eliminates complexity in design and handling by using ring hooks of the same shape as a pair,
Moreover, it is an object of the present invention to provide a ring hook that can reduce the cost of parts and can surely and stably maintain the engagement between the assembled ring hooks.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a ring hook 1
Are formed in a pair and have the same shape, and are composed of a connecting ring 2 and an annular belt attachment portion 3 connected to the connecting ring 2, and form a ring with the surface of the connecting ring 2. The surface formed by the belt mounting portion 3 is a surface intersecting at an angle of approximately 45 degrees, and then the connecting ring 2 is provided with an opening 2c in the annular portion 2a on the belt mounting portion 3 side. Part 2c
Is formed by two V-shaped notches 4 provided in the annular portion 2a so as to face each other toward the center of the connecting ring 2 and a slit 5 communicating between the bottoms of the notches 4, 4. Both inclined surfaces 4a of the notches 4 and 4 facing each other,
It is configured so that the corners created by the intersection of 4a are approximately equal in size.

(Operation) In the ring hook 1 configured as described above, the opening 2c of the connecting ring 2 is aligned with the opening 2c of the same shape provided in the connecting ring 2 of the other ring hook 1, and the connecting rings 2 are connected to each other. By pushing, both openings 2c, 2c are pushed open, then the inclined surfaces 4a, 4a of the notches 4, 4 are pushed while slidingly contacting each other, and the annular portion 2a of the ring hook 1 is connected to the mutual connecting ring 2 It is fitted inside.

In this way, the ring hook 1 is fitted by pushing the annular portion 2a open while the slanted surfaces 4a of the notches 4 are in sliding contact with each other, and at the same time, the opening 2c is elastically restored to the original state. Ring hook 1 connecting ring 2, 2 opening 2
Even if the c and 2c are in a combined state, the ring hooks 1 and 2c can be pulled with sufficient strength at each other unless the directions of the inclined surfaces 4a and 4a in the openings 2c and 2c are aligned. 1
There is no separation from each other.

Also, the sharper the angle created by the intersection of the inclined surfaces 4a, 4a of the notch 4, the more force is required to push the annular portion 2a of the ring hook 1 into the connecting ring 2 of the other ring hook 1. The pull-off resistance force corresponding to the force required for this pushing is applied to the ring hooks 1, 1.

As a result, the desired engagement strength can be provided to the ring hooks 1 and 1 by adjusting the inclination angles of the inclined surfaces 4a, 4a of the notch 4.

Furthermore, when the intervals of the slits 5 provided between the notches 4 and 4 are the same, and the angles formed by the inclined surfaces 4a, 4a of the notches 4 are the same, the notches 4 are formed to be shallow, and the notches in a back-to-back shape. When the distance between 4 and 4 is increased, the larger the distance is, the more force is required to push the annular portion 2a of the ring hook 1 into the connecting rod 2 of the other ring hook 1.

Therefore, the setting of the engagement strength of the ring hooks 1 and 1 can be adjusted by the interval between the notches 4 and 4.

Further, since the connecting ring 2 is rotatable about the annular portion 2a of the other connecting ring 2, the engaging angles of the ring hooks 1 and 1 can be freely changed.

Further, the ring hooks 1 have a pair of the same shape, and are composed of a connecting ring 2 and an annular belt mounting portion 3 connected to the connecting ring 2, and the connecting ring 2 is configured. Since the surface and the surface of the annular belt mounting portion 3 are configured to intersect with each other at an angle of about 45 degrees, the annular belt mounting of the ring hooks 1 and 1 engaged with each other. The ring hooks 1, 1 can be connected so that the parts 3, 3 are located on the same plane.

(Embodiment) A typical embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a ring hook, which is an annular belt attaching portion 3 integrally formed with a connecting ring 2 formed of an annular portion 2a having a circular cross section and a rod-shaped neck portion 2b protruding outward from the connecting ring 2.
It is made of plastic with elastic deformation characteristics.

The connecting ring 2 has a hole 2'having a diameter slightly larger than the diameter of the annular portion 2a, and two V-shaped members facing the center of the connecting ring 2 are located at a central angle of 45 degrees with the neck 2b. -Shaped cutouts 4 are provided in a back-to-back manner with their bottoms close to each other, and an opening is formed by a slit 5 communicating between the bottoms of the cutouts 4 and 4.
Forming 2c.

Ideally, the two inclined surfaces 4a, 4a facing each other of the notches 4, 4 forming the opening 2c intersect at an angle of 90 degrees, and all four inclined surfaces 4a, 4a ... Are all equal. It is desirable that the size is set.

In the embodiment shown in the drawings, the angle α at which the inclined surfaces 4a, 4a intersect is 90 degrees, but other angles may be used, and the angle α at which the inclined surfaces 4a, 4a intersect 90 degrees. When the angle is made sharper than that, the annular portion 2a of the other connecting ring 2 is pushed into the connecting ring 2 more tightly, and more force is required to engage them, but the ring hooks 1 and 1 are engaged. Is more stable, and even if an unexpected external force is applied to the ring hooks 1 and 1, the ring hooks 1 and 1 are prevented from coming apart from each other.

Also, the angles formed by the inclined surfaces 4a and 4a do not necessarily have to be the same, and if there is a slight difference, the two inclined surfaces 4a, 4a of the notches 4, 4 provided opposite to each other intersect each other. The corners created by doing so may be different.

Even in this case, the opening 2c of the one ring hook 1
The opening portion 2c of the other ring hook 1 can be aligned with and fitted into the ring hook 1 by force.

The belt attaching portion 3 has a rectangular ring frame shape, and the neck portion of the connecting ring 2 is located outside the central portion of the rod-shaped portion 3a which is one long side.
2b and the connecting ring 2 and the belt mounting portion 3 are connected.
They are arranged in a row twisted by 45 degrees. That is, the surface formed by the belt mounting portion 3 as the annular frame and the surface formed by the connecting ring 2 intersect at an angle of about 45 degrees.

The rod-shaped portion 3b, which is the other long side, is a connecting portion of the belt and its cross section is circular.

In the ring hook 1 thus configured, the other ring hook 1 of the same shape and the opening 2c of the connecting ring 2 thereof are opposed to each other, and the respective inclined surfaces 4a, 4a are pushed together,
The opening 2c is elastically deformed so that the openings 2c can be pushed apart from each other
2a is pushed into the hole 2'of the other connecting ring 2 and the two ring hooks 1, 1 are connected. Further, the engagement angle can be freely changed around the mutual annular portions 2a as an axis, and especially when the annular portion 2a has a circular cross section, the engagement angle can be changed more easily.

Also, by making the hole 2'of the connecting ring 2 slightly larger than the diameter of the annular portion 2a, rattling does not occur between the engaged annular portions 2a, 2a, and the connecting ring 2 is mutually Although they are connected at an angle of about 90 degrees, the angle t formed by the connecting ring 2 and the belt mounting portion 3, that is, the surface formed by the connecting ring 2 and the surface formed by the belt mounting portion 3 are about 45 degrees. In the case where the belt mounting portions 3 are integrally formed by twisting so as to intersect with each other at different angles, the surfaces formed by the belt mounting portions 3 and 3 are in the same plane, and the belts connected to the belt mounting portion 3 are joined together. The surfaces 6 and 6 are aligned in the same direction on the same line as the line yy in FIG.

By attaching the neck portion 2b of the connecting ring 2 to the belt attaching portion 3 so as to be rotatable about its axis, the angle formed by the surfaces of the belts 6 connected to both ring hooks 1 can be freely changed. Therefore, the engagement of the ring hooks 1 and 1 has a degree of freedom in almost all directions.

(Effect) Since the ring hook 1 constructed as described above according to the present invention comprises a pair of ring hooks 1 having exactly the same shape, only one molding die is required and the shape is very simple. Therefore, the die cost is easy and the cost for forming the parts can be reduced.

Also, the openings 2c of the two connecting rings 2 and 2 and the notches 4 and 4 of the 2c.
By connecting the inclined surfaces 4a, 4a together, the connecting rings 2, 2 are engaged with each other while elastically deforming each other, so that the ring hooks 1, 1 are reliably connected.

Therefore, in order to disconnect this connection, the inclined surfaces of the notches 4 and 4
Unless the openings 2c and 2c are aligned and pulled apart so that 4a and 4a coincide with each other, the connecting rods 2 and 2 do not elastically deform and the ring hooks 1 and 1 do not come off.

Further, even if the tension of the belt is loosened, the ring hooks 1 and 1 can be disengaged from each other unless a special operation is performed because the openings 2c and 2c of the connecting rods 2 and 2 are elastically repulsed in the closing direction. Safe without.

Further, since the connected connecting ring 2 can rotate about the annular portion 2a of the other connecting ring 2 as an axis, a connected state having a free angle can be obtained.

Further, since the ring hooks 1 have the same shape as described above, two ring hooks 1 can be used as hooks for belts and the like, and inventory management is easy and handling operations for engagement and release are easy.

In addition, as in the embodiment, the connecting ring 2 and the belt mounting portion 3 are connected to each other by 45
By arranging them in a twisted state, the surfaces of the belts connected by the ring hook 1 can be made to be on the same plane, and the connecting ring 2 can be rotated about the axis of the neck 2b. By arranging them in series, the surfaces of the belts can be connected at an appropriate angle, and the ring hook 1 has a free engagement direction in almost all directions.

Further, since the ring hook 1 has a simple structure, it has features such as less failure and damage, and since it is made of plastic, the ring hook of any color can be used.

Further, in this ring hook 1, an opening 2c is provided at an annular portion 2a of the connecting ring 2 on the side of the belt attachment portion 3 at a central angle of 45 degrees with the neck 2b. Since the opening is not provided at the position of the annular portion 2a, the belt attaching portion 3,
The annular portions 2a, 2a can be easily engaged with each other in such a manner as to face each other substantially parallel to each other, and after such engagement is made, the belt mounting portions 3, 3 are pulled apart in the opposite directions, respectively. Even if a large force is applied, the openings 2c and 2c do not coincide with each other, and the connection between the annular portions 2a and 2a is never broken.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the ring hook according to the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a front view showing an opening of the ring hook, and FIG. An example front view and FIG. 5 are plan views of the same. 1 ... Ring hook, 2 ... Connection ring, 2a ... Annular part, 2c ... Opening part, 3 ... Belt mounting part, 4 ... Notch, 4a ... Slope, 5 ... Slit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Microfilm (JP, U), which is a photograph of the contents of the specification and drawings attached to the application for Japanese Patent Application No. 59-20800 (No. 60-133907). A microfilm (JP, U) of the contents of the specification and drawings attached to the application of Japanese Utility Model Application No. 57-132136 (Japanese Utility Model Application No. 59-34967)

Claims (1)

[Scope of utility model registration request] 1. A pair of ring hooks having the same shape, wherein the ring hook comprises a connecting ring and an annular belt mounting portion connected to the connecting ring, and a surface formed by the connecting ring and The surface formed by the annular belt attachment portion intersects at an angle of approximately 45 degrees, and an opening is provided in the annular portion of the connecting ring on the belt attachment portion side, and the opening is Two V-shaped notches provided in the annular portion in a back-to-back shape toward the center of the connecting ring, and slits communicating between the bottoms of the notches, and the two slopes of the respective notches facing each other. A ring hook characterized in that the angles created by intersecting surfaces are approximately equal.