JPH11178618A - Buckle for watch band - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a safety measure with a simple structure by enhancing safety for the time when a buckle is inadvertently opened or an opening force works while restricting a rise in cost and enhancing reliability by ensuring a smooth rotation of a doubly foldable means. SOLUTION: A doubly foldable means 11 is provided with a rear member 11A arranged on the rear side, a surface side member disposed on the surface side, and a joint means 20 to rotatably support them at two plates separated at least the thickness of the rear member. The joint means 20 includes a bearing member 21 which is arranged on the rear member or the surface member, and having a slot 22 in the direction of overlapping the doubly foldable means and a moving pin 24 to be mated with the slot 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buckle for a watch band, and more particularly to the prevention of a failure due to an accidental reverse rotation of a two-folded portion.

[0002]

2. Description of the Related Art In connection with the technology of a buckle for a watch band having two folded portions, a technical example 1: Japanese Patent Application Laid-Open No. 7-2893.
No. 16, Technical Example 2: JP-A-8-56708, and Technical Example 3: JP-A-9-56422.

FIGS. 7 and 8 show a diver band buckle (a diver watch band buckle) in Technical Example 1. FIG.
Is shown. In these figures, reference numerals 1 and 2 denote diver band pieces (first and second bands), 10 denotes a diver band buckle, 11 denotes a folding means, 12
Is a top cover, 13 is a push button unit, 14 is a safety cover, 15 is a lock, and 16 is a length adjustment mechanism. In brief, the diver band buckle 10 is composed of diver band pieces (first band, second band) 1 and 2.
When the diver watch is attached and detached, the push button unit 13 is
By pressing and pulling up, the two-folding means 11 and the upper lid 12 are disengaged from the locking member 15 and the two-folding means 11 can be opened, and the diver band buckle 10 is opened by the length adjusting mechanism 16. They are able to change their length.

In the technical examples 1 to 3, the two-fold part (two-fold means 11) is, for example, 18 as shown by an arrow in FIG.
It is required to be able to open up to an angle of about 0 to 270 degrees.

[0005]

However, if the forked part is forcibly opened to an angle beyond the limit or a careless opening force is applied, the hinge of the forked part is damaged. It can happen.

The present invention has been made in view of these circumstances, and has the following objects. Improve safety when the buckle is opened carelessly or when the opening force is applied. To realize safety measures in the case of opening more than necessary with a simple structure and to suppress cost increase. Ensuring smooth rotation of the two-folding means when attaching and detaching a watch, and improving reliability. To improve the opening and closing operability of the overlapping portion and to enable reliable operation.

[0007]

Means for Solving the Problems In a buckle for a watch band arranged in a connected state between ends of a pair of bands, two folding means are attached to a first band and a second band in an interposed state. In addition, joint means for rotatably supporting the back member and the front member at two points separated by the thickness of the back member is disposed between the back member and the front member in the two-folding means. A bearing member integrally disposed on at least one of the member or the front side member and having a long hole in the overlapping direction of the two folding means,
A technology including a moving pin connected to at least the other of the back side member and the front side member and engaged with the elongated hole is employed. The longitudinal direction of the long hole in the bearing member is
It is set in an inclined state in the direction of the tip of the two-folding means. The back member and the front member are formed by pressing a metal plate, and the bearing member is formed by bending the bases of the back member and the front member. The second member on the front side member
An upper cover for connecting the band is provided, a push button unit is provided on the upper cover, and a locking member which is locked and released by operating the push button unit is provided on the two-folding means.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a buckle for a watch band according to the present invention will be described below with reference to FIGS.

The buckle X for a watch band is constructed by combining an upper cover 12, a push button unit 13 and a locking member 15 with a two-folding means 11, and a joint means 20 at a rotating portion of the two-folding means 11. Are arranged in the interposed state.

The joint means 20 will be described in detail. The joint means 20 is disposed between the back member 11A and the front member 11B of the two-folding means 11 by a thickness equal to or greater than the thickness of the back member 11A and the front member 11B. It has a function of rotatably supporting two distant positions.

In the example shown in FIGS. 2 to 6, the joint means 20 includes a bearing member 21 formed integrally by pressing the base of the front side member 11B or the like, and a two-folded part of the bearing member 21. A slot 22 arranged in an inclined state along the direction in which the means 11 overlaps;
A pin fixing portion 23 formed integrally by pressing the base portion of A with the like, and a movement fixed to the pin fixing portion 23 and movably engaged with the elongated hole 22 in the range thereof. And a pin 24.

1 and 4, the longitudinal direction of the elongated hole 22 is set to be inclined at, for example, about 45 degrees with respect to the tip direction of the two-folding means 11. As shown in FIG. And the moving pin 2 is not less than the thickness of the back side member 11A.
4 is to be moved.

A supplementary explanation of the part of the two-folding means 11 is as follows. The two-folding means 11 is formed by a technique of pressing a metal plate such as a stainless steel plate or a titanium plate. Back side member 11A to be arranged
And the front side member 11B arranged on the front side by joint means 2
0, the second band 2 is rotatably connected to the front side member 11B according to a part of the function of the diver band buckle of the technical example 1 as shown in FIGS. An upper cover 12 for connection is provided, a push button unit 13 is provided on the upper cover 12, and the two-folding means 11 is closed on the back member 11A by operating the push button unit 13. A locking device 15 is provided for performing locking to maintain the folded state and detachment for opening the two-folding means 11.

The operation of attaching and detaching the buckle X for a watch band configured as described above will be described below.

The attachment and detachment of the watch, that is, the removal of the buckle X for the watch band, is usually performed by opening and closing the push button unit 13 from both sides and moving the upper lid 12 up and down.

When opening the buckle X for the watch band,
From the state shown in FIG. 1, when the push button unit 13 is pinched to release the engagement with the locking member 15 and the upper cover 12 is raised, the two-folding means 11 is connected to the elongated hole 22 and the moving pin 24 , And can be opened at any angle.

In a normal case, the two-folding means 11 is
Opening by about 0 degrees maximizes the loop size, and enables operations such as removing the watch from the wrist.

However, in the buckle X for a watch band described here, in addition to being rotatable, the moving pin 24 is formed by the length of the elongated hole 22, that is, as described above, In the thickness direction of the folding means 11, the back member 1
For example, as shown in FIG. 6, the front side member 11B can be opened to a position close to 360 degrees from the back side of the back side member 11A in order to move more than the thickness dimension of 1A. Therefore, even if the folding means 11 is opened more than necessary, no trouble is caused.

When the watch is worn on the wrist, the watch is closed by closing the two-folding means 11 according to the first technical example.

In an extreme example, the state shown in FIG. 6 is changed to the state shown in FIG. 1, that is, the front member 11B is connected to the back member 11A.
It is also possible to rotate so that it overlaps with the moving pin 24. In this case, the portion of the elongated hole 22 is inclined with respect to the moving pin 24 in the thickness direction and the length direction of the two-folding means 11. By moving, the front side member 11B is pulled out in the distal end direction to the maximum extent, and the positioning of the push button unit 13 and the locking member 15 is performed. In this state, since the front side member 11B is overlaid on the back side member 11A and closed, the positional relationship between the push button unit 13 and the locking member 15 is accurately maintained, and engagement with high precision is performed.

[Other Embodiments] In the above-described first embodiment, a structure is adopted in which the bearing member 21 and the elongated hole 22 of the joint means 20 are arranged on the front member 11B. This does not preclude the arrangement on 11A and the arrangement on both the back member 11A and the front member 11B.

[0022]

According to the buckle for a watch band according to the present invention, the following effects can be obtained. (1) Since the joint means for rotatably supporting two separate positions is disposed between the back member and the front member of the two-fold means, the two-fold part can be extended to an angle exceeding the limit. Even if it is opened carelessly or such an opening force is applied, no excessive force is generated, and the overall safety can be improved. (2) Since the joint means includes a bearing member having a long hole and a moving pin engaged with the long hole, safety measures are realized with a simple structure,
In addition, cost increase can be suppressed. (3) By rotating the two-folding means using the long hole and the moving pin, smooth rotation of the two-folding means at the time of attaching / detaching the timepiece can be ensured, and reliability can be improved. (4) By setting the longitudinal direction of the long hole in an inclined state, the open / close operability of the overlapped portion can be enhanced and a reliable operation can be performed. (5) By locking and releasing the two-folding means by operating the push button unit, the operability at the time of attaching / detaching the watch can be enhanced, and a smooth operation can be performed.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of a buckle for a watch band according to the present invention.

FIG. 2 is a front sectional view showing a first embodiment of a buckle for a watch band according to the present invention.

FIG. 3 is a plan view showing a first embodiment of a buckle for a watch band according to the present invention.

FIG. 4 is a front sectional view showing a part of the front member in FIG. 1;

FIG. 5 is a plan view showing a part of the front member in FIG. 1;

FIG. 6 is a front sectional view showing a state in which the two-folding unit in FIG. 1 is rotated in a reverse direction.

FIG. 7 is a perspective view showing a conventional example of a diver band buckle.

FIG. 8 is a front sectional view showing the relation between a two-folding unit, an upper cover, a safety cover, a slider, and the like in FIG. 7;

[Explanation of symbols]

 X Buckle for watch band 1 First band 2 Second band 11 Two folding means 11A Back side member 11B Front side member 12 Top cover 13 Push button unit 15 Locking device 20 Joint means 21 Bearing member 22 Slot 23 Pin fixing part 24 Moving pin

Claims (4)

[Claims] 1. A buckle for a watch band arranged between two ends of a pair of bands in a connected state, wherein the first band (1) and the second band (2) are folded in two. )
Are attached in an interposed state, and a joint means (20) of the back member (11A) and the front member (11B) in the two-folding means is integrally disposed on at least one of the back member and the front member. A bearing member (21) having an elongated hole (22) in the overlapping direction of the folding means.
And a moving pin (23) connected to at least the other of the back member or the front member and engaged with the elongated hole. 2. The watch band according to claim 1, wherein the direction of the elongated hole (22) of the bearing member (21) is set so as to be inclined toward the tip of the two-folding means (11). For buckle. 3. A back member (11A) and a front member (11).
B) is formed by pressing a metal plate, and the bearing member (21) is formed by bending the bases of the back member and the front member. Buckle for watch band. 4. An upper cover (12) for connecting a second band (2) is disposed on the front member (11B), and a push button unit (13) is disposed on the upper cover. 4. A buckle for a watch band according to claim 1, wherein the folding means (11) is provided with a locking tool (15) locked and released by operating a push button unit.