JPH0856708A - Buckle for watch band - Google Patents

Abstract

PURPOSE: To increase safety and improve operability by reducing the wear quantity of parts at the time of application to pure titanium or the like, removing inconvenience such as a buckle being taken off unpreparedly, in the case of a watch band buckle. CONSTITUTION: This buckle is equipped with a doubled means 11; an upper lid 12 that is connected to another band and covers the top of the doubled means 11; a push button unit 13; an engage-stopper 15 to be engage-stopped and to be separated by the operation of the push button unit 13. In addition, it is equipped with a safety lid 14 that is rotatably supported at the doubled means 11 and is to be put on into the state of covering the top of the upper lid 12; and a click means to restration the rotation of the safety lid 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a watch band buckle.

[0002]

2. Description of the Related Art Conventionally, various structures of buckles for watch bands have been used, but a so-called push button unit has a structure as shown in FIGS.
When the buckle is stopped, the moving element r, which is biased toward the center by a spring or the like, slides on the inclined surface t of the locking tool s against the elastic force, so that the hook of the locking tool s is hooked. The buckle can be prevented from being opened by being hooked on the part u, and when the buckle is opened, the moving element r
Can be removed from the hook portion u by moving the button to both outsides by button operation or the like. Further, since it cannot be disengaged from the hook portion u unless the moving element r is moved to both outer sides at the same time, it is expected to have high safety and excellent applicability to diver watches and the like.

[0003]

However, with the structure of the example of FIG. 10, when the buckle is stopped, it is necessary to slide the mover r on the inclined surface t of the locking tool s, so that the frictional resistance is reduced. The operability is affected by the size and the degree of wear, and the buckle is likely to come off accidentally depending on the degree of wear of the mover r and the hook portion u, which impairs the reliability of the buckle. Easy to get rid of. Furthermore, when the watch band is worn directly on the wrist (directly on the skin), an allergic reaction may occur depending on the combination of the user's constitution and the type of metal. Would increase the tendency for buckle wear to increase.

The present invention has been made in view of these circumstances, and has the following objects. To reduce the amount of wear. Improve safety by eliminating problems such as the buckle coming off accidentally. Improving operability. Improve applicability to pure titanium, etc.

[0005]

In a watch band buckle according to the present invention, the buckle for a watch band is arranged in a connected state between the ends of a pair of bands, and has two folding means attached to one of the bands. An upper lid that is attached to an end of the two folding means by a coupling pin and is connected to the other band to cover the two folding means, a push button unit arranged on the upper lid, and a two folding means. And a safety lid that is rotatably supported by the folding means and covers the upper lid so as to cover the upper lid, and the safety lid is folded in two. A configuration is adopted in which the safety cover is provided in a state of being interposed between the means and the click means for suppressing the rotation of the safety lid. The push button unit includes a pair of movers arranged to be movable in the width direction,
A guide for accommodating and guiding the movement of the moving element, a button portion arranged integrally with the moving element for pushing the moving element to the center, and a guide portion housed in the guide and biasing the moving element toward the button portion. The elastic member and the roller portion, which is disposed on the moving element and is hooked to the locking tool disposed on the two-folding means and protruding upward, are employed. In the connecting pin, it is arranged in a protruding state from both sides of the two-folding means,
The locking recess of the safety lid is supported by the protruding portion of the connecting pin. In addition, the coupling pin consists of a spring rod with rounded head. Further, the watch band buckle adopts a technique in which at least the back surface is made of titanium material.

[0006]

The buckle for a watch band is connected between the ends of a pair of bands. When the upper lid and the safety lid are closed, the opening and closing of the two-folding means is suppressed, and when the safety lid is open, the push button unit can be operated. By pushing the push button unit, the upper lid and the two-folding means can be operated. Is released. In the safety lid, the rotation of the safety lid is suppressed by the click means, and the safety lid is housed in the concave portion of the upper surface of the upper lid to prevent the tip portion from protruding more than the upper surface of the upper lid and to be opened accidentally. Reduce the overall thickness. Further, the safety lid is restrained from being opened by supporting the locking recess on the protruding portion of the coupling pin, and is locked and unlocked by utilizing the elasticity of the coupling pin based on the spring rod. In the push button unit, the roller part moves up and down while contacting the mover to lock and unlock the roller part, and the rolling of the roller part reduces wear of the friction part and smooth operation. Be promoted. By forming the back surface of the buckle for a watch band from a titanium material, irritation is significantly reduced.

[0007]

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

In each of these drawings, reference numerals 1 and 2 denote watch band pieces (bands), 10 denotes a watch band buckle, and 11
Is a folding means, 12 is an upper lid, 13 is a push button unit, 14 is a safety lid, 15 is a locking tool, and 16 is a click means. These details will be described below.

As shown in FIGS. 1 and 2, the timepiece band pieces 1 and 2 have a timepiece buckle 10 arranged in a connected state between their ends, and these timepiece band pieces 1 and 2 are connected.
Also, at least the back surface of the watch band buckle 10 that is in contact with the skin is made of a pure titanium material that is less likely to cause an allergic reaction to the skin.

In the two-folding means 11 in the watch band buckle 10, as shown in FIG. 1, the space between the main body case 11A and the intermediate plate 11B which can be accommodated therein is
Main case 1 that is rotatably connected by main pin 11C
One band 1 is attached to the tip of 1A with a connecting piece 11D interposed, and an upper lid 12 covering the two folding means 11 is rotatably attached to the tip of the intermediate plate 11B by a connecting pin 17. To be

As shown in FIGS. 1 and 2, the other band 2 is connected to the upper lid 12 by an adjusting pin 18,
These connection positions are adjusted by changing the engagement position with the plurality of adjustment holes 12a of the upper lid 12 using the adjustment pin 18 as a "spring" rod. A recess 12b is provided on the upper surface of the upper lid 12 for accommodating the bridge-shaped tip of the safety lid 14 to reduce the amount of protrusion to the upper surface.
Operation recess 12c for inserting fingers or nails when the tip edge of the safety lid 14 is pryed in the recess 12b in a continuous state.
Is formed.

As shown in FIGS. 1, 2, 5, 6 and 7, the push button unit 13 is arranged in the upper lid 12 in a built-in state and is in a locked state with the locking tool 15. Also, whether to open or close the double-folding means 11 is set by selecting the separation state. As shown in FIGS. 6 and 7, the push button unit 13 includes two (a pair) movably supported by a rectangular cylindrical guide 12d integrally arranged inside the upper lid 12 and combined in a facing state. Mover 13a
A spring (elastic member) 13b for moving the moving element 13a by an urging force; a button portion 13c disposed integrally with the moving element 13a and protruding outwardly from both side plates of the upper lid 12; A roller support piece 13d arranged at a position opposite to the portion 13c, a roller portion 13e arranged rotatably and opposite to the roller support piece 13d, and a step portion for accommodating a spring 13b and receiving a biasing force. 13f, 1
3g and a contact portion 13h that is arranged near the stepped portion 13f and abuts on a stopper 12e that is integrally arranged on the inner surface of the guide 12d and that is prevented from moving outward are formed. The amount of protrusion of the button portion 13c, the facing distance of the roller portion 13e, and the like are set based on the width dimension and shape of the locking tool 15 described later.

As shown in FIGS. 1 and 2, the safety lid 14 has a bifurcated mounting portion 14a which is rotatably supported by an assembling pin 19 on the outer side of the main body case 11A of the folding means 11. And an opening / closing portion 14b that connects the attachment portion 14a in a bridge shape and is engaged with the recess 12b of the upper lid 12, and by opening the lid 12 as shown in FIG. The setting is made to enable the "open" or "close" operation, and the setting to cover the upper lid 12 by the closed state to suppress the "open" operation of the upper lid 12.

As shown in FIGS. 1 and 8, the locking member 15 is arranged in the center of the inside of the main body case 11A of the two-folding means 11 so as to project upward, and in the push button unit 13 described above. It has an overhang portion 15a for hooking the roller portion 13e and a guide portion 15b for rolling the roller portion 13e of the roller support piece 13d. As shown in FIG. 1, the fastener 15 is formed by a method in which the bottom plate of the body case 11A is cut and raised by press working, or is separately manufactured.
It is formed by a method such as welding to the bottom of A.

The clicking means 16 is a folding means 1
It is arranged in a state of being interposed between the connecting pin 17 at the tip position of 1 and the safety lid 14, and suppresses the rotation of the safety lid 14, and is a position slightly separated from the rotation center of the safety lid 14 (safety lid 14 (Position that is on the straight line of the connecting pin 17 when covered with)
And a coupling pin 17 that is engaged with and disengaged from the locking recess 16a. The locking recess 16 shown in the example of FIG.
In the case of a, the through hole is formed in the mounting portion 14a.

The connecting pin 17 is set so as to rotatably connect the middle plate 11B and the upper lid 12 of the two-folding means 11 and to have its end projecting from both sides of the middle plate 11B. It As shown in FIG. 9, the coupling pin 17 is a so-called "spring" rod, and the moving shaft 1 is urged outward by an elastic force inside the sleeve 17a.
7b is arranged and the middle plate 11B is attached to the moving shaft 17b.
A flange 17c having an outer diameter larger than that of the mounting hole 11a is integrally formed, and the flange 17c is integrally formed with the flange 17c so as to project outward through the mounting hole 11a and be inserted into the locking recess 16a of the click means 16. An engaging portion 17d in which the head to be supported is rounded is arranged.

The connecting piece 1 at the tip of the folding means 11
The connection pin 20 attaches between 1D and the band 1.

The operation of removing and attaching the buckle for a watch band thus constructed will be described below.

For attaching and detaching the timepiece and the timepiece band, that is, for removing and attaching the timepiece buckle 10, the upper lid 12 and the safety lid 1 are attached.
4 and. As shown in FIG. 2, the upper lid 12
When the safety lid 14 is closed, the roller portion 13e of the push button unit 13 clamps the locking tool 15 at the position shown by the solid line in FIG. The opening and closing of the folding means 11 is suppressed. At this time, even if the push button unit 13 is pushed from both sides, the opening operation of the upper lid 12 is suppressed because the safety lid 14 is closed.

When the upper lid 12 and the safety lid 14 are closed, the safety lid 14 is a recess 12b in the upper lid 12.
The click means 16
Due to the rotation restraining force of 1, the safety lid 14 is prevented from being opened accidentally.

When the fingers are put in the operation recess 12c of the upper lid 12 and the safety lid 14 is opened from the position shown by the solid line to the position shown by the chain line in FIG. 4 against the rotation suppressing force of the clicking means 16, The upper lid 12 can be opened.

When the safety lid 14 is opened, the roller portion 13e releases the pinch of the overhang portion 15a of the locking tool 15 by pushing the button portion 13c of the push button unit 13, and the roller lid 13e is folded in two together with the upper lid 12. By the operation of opening the means 11, the intermediate plate 11B is pulled out from the main body case 11A, the size is increased, and the operation such as removing the watch band from the wrist becomes possible.

When the watch band or the like is attached to the wrist, when the two-folding means 11 is closed, the middle plate 11B is housed in the main body case 11A to reduce the overall thickness, and the upper lid 12 is doubled. By covering the folding means 11, the push button unit 13 is locked to the locking tool 15. That is, the roller portion 13 of the push button unit 13
As shown by the two-dot chain line, one-dot chain line, and solid line in FIG. 8, e touches the guide portion 15b of the locking tool 15 and rolls over the overhang portion 15a to roll over the roller portion 13e.
It is in a state of being caught by the overhang portion 15a by the clamping force of. In this case, since the roller portion 13e rolls over the guide portion 15b and rides over the overhang portion 15a, the rolling resistance is small, the operation is smooth, and the roller portion 13e is smoother than the conventional sliding friction. Thirteen
The wear such as e is remarkably reduced.

Then, the safety lid 14 is returned from the position shown by the chain line in FIG. 4 to the position shown by the solid line to restore the original mounting position.

On the other hand, the usual adjustment of the lengths of the bands 1 and 2 is carried out by a known conventional means. That is, band 2
It is carried out by changing the engaging position of the adjusting pin 18 with respect to the adjusting hole 12a between the upper cover 12 and the upper cover 12.

[0026]

The buckle for a watch band according to the present invention has the following effects. (1) Two folding means, an upper lid that covers the two folding means, a push button unit, a locking device that is locked and released by the operation of the push button unit, and a state that covers the upper lid. By providing the safety lid to be covered and the click means for suppressing the rotation of the safety lid, the upper lid and the two-folding means cannot be opened unless the safety lid is opened, so that the buckle is inadvertently removed. To improve safety. (2) By arranging the push button unit with a roller portion that is hooked to a locking tool, wear of parts is reduced even when the watch band is made of a slightly soft material such as pure titanium. The durability can be improved. (3) Locking and disengaging operations are performed by rolling of the roller portion, and operability and safety can be improved. (4) The durability and reliability can be improved by reducing the wear of the parts. (5) The structure of the click means can be simplified by disposing the coupling pin in a protruding state from both side portions of the two-folding means and supporting the safety lid on the protruding portion. (6) Since the coupling pin is composed of a spring rod with a rounded head, it is possible to obtain a clear operability by elastic force and enhance the retention of the safety lid.

[Brief description of drawings]

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

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

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

FIG. 4 is a front view showing the opened / closed state of the safety lid in FIG.

5 is a bottom view showing a portion of the push button unit in FIG. 2. FIG.

FIG. 6 is a plan sectional view of a portion of the push button unit in FIG.

FIG. 7 is a front view of a portion of the push button unit in FIG.

8 is a side view showing a relationship between a latch roller and a locking tool of the push button unit in FIG.

9 is a plan view showing a spring rod of a click portion of the safety lid in FIG. 1. FIG.

FIG. 10 is a side view showing an example of a conventional structure of a push button unit used for a watch band buckle.

[Explanation of symbols]

 1, 2 Watch Band Pieces (Bands) 10 Watch Band Buckles 11 Two-Folding Means 11A Main Body Case 11B Middle Plate 11C Main Pin 11D Connecting Pieces 11a Mounting Holes 12 Upper Lids 12b Recesses 12c Operation Recesses 12d Guides 12e Stoppers 13 Push Button Units 13a mover 13b spring (elastic member) 13c button part 13d roller support piece 13e roller part 13f, 13g step part 13h contact part 14 safety lid 14a mounting part 14b opening / closing part 15 locking device 15a overhang part 15b guide part 16 Clicking means 16a Locking recess 17 Coupling pin 17a Sleeve 17b Moving shaft 17c Flange 17d Engaging part 18 Adjusting pin 19 Assembly pin 20 Connecting pin

Claims (5)

[Claims] 1. A band buckle disposed in a connected state between ends of a pair of bands, wherein one band (1) is provided.
A folding means (11) attached to the second folding means, and an upper lid (12) attached to the end of the folding means by a connecting pin (17) and connected to the other band (2) to cover the folding means. ), A push button unit (13) arranged on the upper lid, and a locking device (1) arranged on the folding means and locked and released by the operation of the push button unit.
5), a safety lid (14) which is rotatably supported by the two folding means and covers the top lid, and an intervening state between the safety lid and the two folding means. A buckle for a watch band, comprising: a click means (16) for suppressing rotation of a lid. 2. A push button unit (13), and a pair of movers (13a) movably arranged in the width direction,
A guide (12d) for accommodating the moving element and guiding the movement thereof.
And a button portion (13c) which is integrally arranged on the moving element and is used to push the moving element to the center, and an elastic member (13b) which is housed in the guide and urges the moving element toward the button portion.
And a roller portion (13e) which is disposed on the moving element and which is hooked on a locking tool (15) which is disposed on the folding means (11) in a protruding state upward. A buckle for a watch band according to Item 1. 3. The coupling pin (17) has two folding means (1).
The watch band according to claim 1 or 2, wherein the locking recess (16a) of the safety lid (14) is supported in a protruding state from both side portions of 1) and the protruding portion of the coupling pin is supported. buckle. 4. Buckle for a watch band according to claim 3, characterized in that the connecting pin (17) is constituted by a spring rod with a rounded head. 5. The buckle for a watch band according to claim 1, 2, 3 or 4, wherein at least a back surface is made of a titanium material.