JP2000279215A - Strip body, and watch band and key holder using this strip body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the weight, simplify the structure, facilitate the mass production at a low cost, enhance the durability and allow the attachment in a single operation with a small force by mutually connecting the side parts of a plurality of 8-shaped annular members to transversely arrange them, and integrally forming the annular members by use of an elastic material so as to be transversely expansible and contractible. SOLUTION: A watch band 1 is made of a synthetic resin, and it is formed of a strip body 3 consisting of a plurality of 8-shaped annular members 2 mutually connected in their side parts so as to be transversely extensible and end members 4 provided on both ends thereof, and the strip body 3 is integrally formed with the end members 4 by injection molding. The 8-shaped annular member 2 is formed of vertically long elliptic annular parts 2a, 2b which are vertically connected to each other. The vertically long elliptic annular parts 2a, 2b have, for example, a long axial dimension of 9 mm, a short axial dimension of 5 mm and a thickness 1.5 mm, but the size can be changed according to the purpose without being limited by this. The lower surface of the annular member 2 is preferably flattened to provide a soft touch to the skin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band, a watch band and a key ring which can be expanded and contracted in the horizontal direction.

[0002]

2. Description of the Related Art A watch band for a wristwatch, particularly a stretchable watch band, uses a metal band that is configured to be stretchable or a woven fabric made of rubber-containing yarn.
Also, as a key ring for holding a locker key (key) in a pool or a sauna, a key ring that is connected to a ring-shaped rubber cord and attached to a wrist is exclusively used.

[0003]

However, the stretchable metal band used for the watch band has a good appearance, but is heavy, has a disadvantage that the structure is complicated and the cost is high. A woven fabric made of rubber-containing yarn is inferior in durability and poor in appearance. In addition, ring-shaped elastic cords used in pools and saunas have poor appearance and low commercial value. In addition, it requires a great deal of force to stretch it, and when it is worn, it bites into the wrist etc., leaving a scar and making it unsuitable for long-term use.

The present invention is lightweight, has a simple structure, is easy to mass-produce, is inexpensive and durable, can be mounted with one touch with a small force, does not strongly press the wrist, etc. even when worn, and can be expanded and contracted in the horizontal direction. And a watch band and a key ring using the band.

[0005]

According to the present invention, there is provided a belt-like body in which a plurality of figure eight-shaped annular members are laterally arranged by connecting their side parts to each other, and are integrally formed of an elastic material. It is configured to be able to expand and contract in the horizontal direction.

[0006] The annular portion constituting the annular member may be a vertically long elliptical shape, a diamond shape, or an oval shape. Further, in order to increase the elasticity in the lateral direction, concave portions or constrictions may be provided at a plurality of locations on the inner periphery of each annular portion. Further, a gap may be formed in the longitudinal direction at the connecting portion of the two annular portions constituting the figure-shaped annular member.

The material having elasticity is preferably urethane resin, and both ends of the belt-like body may be connected directly or via another member to form a ring.

The watch band according to the present invention is also characterized in that a plurality of figure-eight annular members are laterally connected to each other and are laterally formed by an elastic material. It has a stretchable part.

Further, the key ring according to the present invention is provided with a plurality of figure eight-shaped annular members which are connected to each other in the lateral direction and are arranged in the lateral direction. It has a possible part.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a watch band 1 is made of a synthetic resin, and a plurality of figure 8-shaped annular members 2 are connected to each other at their sides to extend in a lateral direction.
It has end members 4 provided at both ends thereof, and the strip 3 and the end members 4 are integrally formed by injection molding.

Each figure-shaped annular member 2 is composed of vertically-elliptical annular portions 2a and 2b connected in the vertical direction. The size of the vertically long elliptical annular portion 2a (same for 2b) is, for example, 9 mm in the major axis direction (A in FIG. 2), 5 mm in the minor axis direction (B in FIG. 2), and the thickness C Is 1.5 mm, but is not limited to this and can be changed according to the application.

As shown in FIG. 3, the lower surface 5b of the annular member 2 is preferably flat to soften the contact with the skin, but the upper surface 5a and the lower surface 5b may be circular or other cross-sectional shapes.

The synthetic resin is preferably a urethane resin because of its resilience at the time of expansion and contraction, strength, resistance to tearing, resistance to cold and heat, resistance to scratching, and skeleton (transparent to translucent). Elastic materials such as resin and synthetic rubber may be used. In the case of urethane resin or polyester resin, the hardness is 60 for Shore A type.
° to 95 ° is preferred. If the hardness is less than 60 °, processing is difficult, and if the hardness exceeds 95 °, stretchability cannot be expected, which is not preferable.

The end member 4 is provided with a hole 4a through which a pin passes as shown in FIG. 3. By passing the pin 6 through this hole 4a, the watch band 1 is connected to the watch body 7 as shown in FIG. You. The watch body may be connected to the watch body by using other connecting means other than the combination of the pin and the hole.

When the watch is worn on the wrist, when the watch band 1 formed in a ring shape is pulled and spread, the figure-shaped annular members 2 of the band 3 extend in the lateral direction as shown in FIG. When the pulling force is released after the attachment, the belt 3 returns to its original length (state).

The eight-shaped annular member may be formed by connecting two eight-shaped annular members in the vertical direction so that the annular portions are arranged in four rows or one eight-shaped annular member. May be added so that the annular portions are arranged in three rows.

As shown in FIG. 6, concave portions 8 may be provided at a plurality of locations (four locations in FIG. 6) on the inner periphery of each of the vertically long annular portions 2a and 2b constituting the annular member 2. When a concave portion or a constriction is provided, the lateral extension of the band-like body 3 increases. The shape of the recess is not limited to a semicircle, but may be another shape such as a triangle.

The shape of the annular portions 2a and 2b constituting the annular member 2 is not limited to a vertically long elliptical shape, but may be a vertically long diamond or a vertically long oval as shown in FIG. Other vertically long shapes having longer dimensions may be used.

As shown in FIG. 8, a gap 9 may be provided at the connection between the annular portions 2a and 2b constituting the annular member 2.
By providing the gap 9 in this manner, when the belt-like body 3 is extended in the lateral direction, the lateral extension can be further increased as shown in FIG. The gap 9 may be formed in advance, or may be formed by, for example, once forming the strip 3 in FIG.

The belt-like body 3 is formed in a ring shape, and a key holder 12 or the like, to which a key (key) 10 is rotatably mounted as shown in FIG. 3 can also be used as a belt for a key ring.

The band of the present invention can be used in various applications as a band used in places where elasticity is required, such as a grip band for fixing a hand holding a video camera or a band of goggles.

Further, by attaching a detachable connecting member such as a tape to the end of the belt-like body, it can be used as a binding band for binding a ski or the like during transportation or storage.

Alternatively, both ends of the belt-like body may be connected in advance or directly through another member such as a plate-like member to form a ring (annular). The ring-shaped band can be worn on the arm to keep the sleeve of the shirt from falling, on the foot to keep the hem of the pants from falling off, or a hair band,
It can also be used as a band for holding bandages.

[0024]

The belt-shaped body of the present invention is made of a material such as elastic synthetic resin or rubber, so that it is durable and lightweight, and structurally, a plurality of strips are connected to each other. Each of the annular portions is made of an annular member and has a central portion that is removed, so that it is lightweight, and has no durable mechanically moving parts like a metal band, so that it has durability. In addition, since the structure is simple, it can be manufactured by injection molding or the like, the manufacturing cost is low, and mass production is easy. Moreover, it has good elasticity and does not require a large force like an elastic cord to extend. It also has a good appearance when worn and used, and has high commercial value.

Further, with the watch band and the key ring of the present invention, the watch band and the key ring can be spread with a small force and can be worn with one touch, and the contact with the skin such as the wrist after the wearing is soft. It doesn't hurt even if you wear it for a long time. Therefore, it can be used by old people and children. Further, since the key ring of the present invention does not become hot unlike metal, it can be used in a sauna or the like.

[Brief description of the drawings]

FIG. 1 is a plan view of a watch band according to the present invention.

FIG. 2 is a partially enlarged view of FIG. 1;

FIG. 3 is a partial sectional view of FIG. 1;

FIG. 4 is a view showing a state in which a watch band is attached to the watch body.

FIG. 5 is a view showing a part of a state where the watch band of FIG. 1 is extended.

FIG. 6 is a diagram showing a part of another belt-like body.

FIG. 7 is a diagram showing a part of another belt-like body.

FIG. 8 is a diagram showing a part of another belt-like body.

FIG. 9 is a view showing a state where the belt-shaped body of FIG. 8 is extended.

FIG. 10 is a view showing a key ring of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Watch band 2 Annular member 2a, 2b Annular part 3 Belt 4 End member 6 Pin 7 Watch main body 8 Concave 9 Gap 10 Key (key) 11 Key holding part 12 Key holder

Claims (10)

[Claims] 1. A laterally expandable and contractible belt-like body integrally formed of an elastic material, wherein a plurality of figure-eight annular members are connected to each other and laterally arranged. 2. The belt-shaped body according to claim 1, wherein the figure-shaped annular member has a shape in which two vertically long elliptical annular portions are connected. 3. The belt-shaped body according to claim 1, wherein the figure-shaped annular member has a shape in which two vertically long diamond-shaped annular portions are connected. 4. The belt-shaped body according to claim 1, wherein the figure-shaped annular member has a shape in which two vertically long oval annular portions are connected. 5. The band-shaped body according to claim 1, wherein a gap is formed in a vertical direction at a connecting portion of the two annular portions forming the figure-shaped annular member. 6. The belt-like body according to claim 1, wherein a plurality of concave portions are provided on an inner periphery of the annular portion. 7. The strip according to claim 1, wherein the elastic material is a urethane resin. 8. The strip according to claim 1, wherein both ends of the strip are connected directly or via another member to form a ring. 9. A laterally expandable and contractible portion integrally formed of an elastic material, wherein a plurality of figure-eight annular members are connected to each other and laterally arranged. Watch band. 10. A laterally expandable and contractible portion integrally formed of an elastic material, wherein a plurality of figure-eight annular members are laterally connected to each other. key ring.