JP3274673B2 - Diver band buckle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Divers wear watches on their wrists and wrists, depending on the person or the situation. Also, a wet suit is not always worn, and may not be worn. For this reason, the following is particularly required of the diver band buckle provided in the diver's watch band. (1) Able to quickly and accurately adjust the length of the watch band to the thickness of the portion where the watch is worn, etc. (2) The operation of adjusting the length of the band is easy. (3) There are few protruding parts, and it is hard to be caught by surrounding articles. (4) Do not accidentally come off the body due to impact or the like.

In order to satisfy the above requirements, the applicant of the present invention has previously developed a diver band buckle shown in FIGS. 15 to 20 (Japanese Patent Laid-Open No. 7-289316). This diver band buckle includes a lower plate 4 having one end provided with a slider 3 which is connected to one band 1 by a connecting pin 2 so as to be extendable and contractable, and a shaft 6 at which one end is bent at the other end of the lower plate 4. A middle plate 7 foldably connected to the lower plate 4, one end of the middle plate 7 is foldably connected to the other end of the middle plate 7 by a connecting shaft 8, and the other end is connected to the other end of the middle plate 7. The upper lid 12 connected to the band 9 by the stopper pin 11 and the lower lid 4 are rotatably mounted on one end of the lower plate 4 by the mounting shaft 13 and are turned on the folded upper lid 12 to open the upper lid 12. A safety lid 14 for preventing movement, and a latch mechanism 1 which is operated by opening and rotating the safety lid 14 to freely extend and retract the slider 3 fixed to the lower plate 4 until then.
6 and a fixing mechanism 17 for fixing the middle plate 7 and the upper lid 12 to the lower plate 4 in a folded state.

The buckle latch mechanism 16 is mounted on the mounting shaft 13 so as to be movable in the axial direction. The buckle latch mechanism 16 is engaged with two right and left rows of saw teeth 3a formed on the slider 3 so as to face each other, and the slider 3 is extended. And a coil spring 21 provided between the latch pieces 20 and 20 for pushing each latch piece 20 toward the sawtooth 3a.
And a cam that is rotatably attached to the mounting shaft 13 while being prevented from moving in the axial direction, presses the pressure receiving portion 20 a of the latch piece 20, and moves the latch piece 20 inward against the elastic force of the coil spring 21. 16 and the safety lid 14 shown in FIG.
When the cam member 22 is turned upright to stand up, the latch member 20, 20 is disengaged from the sawtooth 3a, 3a.

A fixing mechanism 17 is provided on a sleeve 25 of the upper lid 12 so as to be able to protrude and retract in the width direction of the upper lid 12.
A pair of left and right hook-shaped buttons 27 which are moved outwardly at 6 and 26 and sandwich the projection 24 at holding portions 27a, 27a having lower surfaces inclined.
When the fingers 7 and 27 are pressed inward with fingers, the holding portions 27a and 2
7a is opened to release the pinching of the projection 24.

The above-mentioned diver band buckle is extremely easy because the length of the band can be largely adjusted by the slider 3 and the operation is only required to open and rotate the safety cover 14. The lower plate 4 and the middle plate 7
Also, the folded state of the upper lid 12 is kept double by the fixing mechanism 17 and the safety lid 14, so that the watch does not easily come off the body due to impact or the like, and since there are almost no protruding parts, the surrounding articles can be removed. It is less likely to be caught and meets all the above requirements.

[0007]

However, the above diver band buckle has the following problems. (A) The latch mechanism 16 requires a cam member 22, a coil spring 21, and two latch pieces 20, and has a large number of components and a complicated structure, resulting in an increase in cost. (B) Since the shape of the two rows of saw teeth 3a formed on the slider 3 is complicated and requires a lot of processing, the cost is also increased in this respect.

An object of the present invention is to provide a diver band buckle that can reduce the number of parts and reduce the cost. Another object of the present invention is to provide a diver band buckle having a simple structure and a smooth operation.

[0009]

In order to achieve at least one of the above objects, an invention according to claim 1 is provided with a lower plate having a slider connected to one of the bands at one end so as to be extendable and contractible. One end is connected to the other end of the lower plate by a folding shaft so as to be freely foldable on the lower plate, and one end is connected to the other end of the lower plate by the connecting shaft so that it can be folded on the middle plate. An upper cover connected to the other band and the other end connected to the other band; and an upper cover rotatably mounted on one end of the lower plate by a mounting shaft and rotated on the folded upper cover to open the upper cover. For a diver band, comprising: a safety cover for preventing the movement of the slider, and a latch mechanism which is operated by opening the rotation of the safety cover and frees the expansion and contraction movement of the slider which has been fixed to the lower plate by stopping at least the extension movement. In a buckle, a plurality of latch mechanisms are formed on a slider along a length direction thereof. A latch having a latch claw for locking the hole and rotatably attached to the mounting shaft, and being rotated by the open rotation of the safety lid to release the latch claw from the locking hole; let was rotated the latch in the opposite direction and a latch spring engaging the latch claw with the engagement hole, the intermediate plate, through the sub-link
To be attached to the connecting shaft (8) .

In this means, the components of the latch mechanism are:
Since there are only two parts, a latch and a latch spring, manufacture is easy. Further, the locking holes formed in the slider have a simple shape, and unlike the conventional saw tooth which requires two rows, the locking holes may be arranged in a single row, and processing is easy. The operation of the buckle itself is the same as the conventional one, and the operational burden does not increase. The latch pawl can stop not only the extension movement of the slider but also the contraction movement. In some cases, the present invention can be applied to a buckle having no fixing mechanism. In addition, this means that the sub-links
Free rotation of the middle plate.

[0011] In the buckle for a diver band according to the first aspect, it is preferable that the lower plate is provided with a fixing mechanism for fixing the middle plate and the upper lid in a folded state. In this configuration, the function is the same as that of the conventional buckle while the structure is simple.

In the buckle for a diver band according to the first or second aspect, the latch mechanism may be configured to prevent the slider from moving toward the lower plate and to allow the slider to move freely (claim 3). With this configuration, it is not necessary to memorize the adjustment and fixing positions of the slider at each body part where the timepiece is worn by the latch configuration, and the slider can be pressed and contracted to be fixed at a desired position.

In the buckle for a diver band according to any one of claims 1 to 3, the connecting shaft is a spring bar, and the safety cover is rotated over the folded upper cover. At this time, it is preferable to form a click portion to be engaged with the tip of the spring bar (claim 4). In this configuration,
A connecting shaft connecting the upper lid to the middle plate prevents free rotation of the safety lid.

In the buckle for a diver band according to any one of claims 1 to 4, the latch spring may be a compression spring, and may be provided between the latch and the slider cover attached to the lower plate. Item 5). With this configuration, the latch spring can be easily assembled and the latch can be smoothly turned.

[0015]

[0016]

Embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 14 show a diver band buckle according to an embodiment of the present invention. Slider 3, lower plate 4, middle plate 7, upper cover 8, safety cover 1 of this buckle
The basic structure and function of the fixing mechanism 17 and the fixing mechanism 17 are the same as those of the diver band buckle shown in FIGS. 15 to 20, and the same members and the like are denoted by the same reference numerals and description thereof is omitted.

The buckle latch mechanism 31 for preventing the slider 3 from extending relative to the lower plate 4 (FIGS. 2, 3 etc.)
Comprises a latch 32 and a latch spring 33. Latch 3
Reference numeral 2 denotes a latch claw 32 for locking a plurality of rectangular locking holes 3b formed in the center of the slider 3 along its length.
a, which is rotatably mounted on the mounting shaft 13 by stopping its movement in the axial direction. When the safety lid 14 is opened and rotated to stand up, it is pushed by the pressing portion 14a of the safety lid 14. And the latch claw 32 which has locked the locking hole 3b until then.
a is lifted up from the locking hole 3b to release the locking.

The latch claw 32a prevents only the extension movement of the slider 3 (the leftward withdrawal movement in FIG. 3).
The slider 3 is provided so as to be inclined so that the slider 3 can be freely reduced and moved. By changing the shape of the latch claw 32a and / or the locking hole 3b, both the extension movement and the contraction movement of the slider 3 can be stopped by the latch claw 32a.

The latch spring 33 is composed of a compression spring, and biases the latch 32 between the latch 33 and the slider cover 4a (FIG. 3) so that the latch claw 32a of the latch 32 locks the locking hole 3b. It is provided. Although only one latch spring 33 is provided, if necessary,
More than one can be used. The shape and operation method of the latch spring 33 are arbitrary.

The middle plate 7 has a sub-link 7a at one end. One end of the sub-link 7a is connected to the short pin 7
b, and the other end is 2
The middle plate 7 is rotatably attached to the folding shaft 6 and the lower plate 4
It is connected to. The middle plate 7 has left and right sublinks 7a,
A protruding piece 7d is provided for locking a connecting portion 7c (FIG. 3) integrally connecting the sub-links 7a with the sub-link 7a by the connecting portion 7c and the protruding piece 7d. Rotation (ignoring the existence of the lower plate 4 etc. in FIG. 3)
Is to be prevented.

The slider cover 4a is provided with two ends thereof fixed to the folding shaft 6 and the mounting shaft 13 in a state in which the storage portion of the slider 3 is formed between the slider cover 4a and the lower plate 4. Protrusion 24
Are formed integrally with the slider cover 4a.

The connecting shaft 8 is a spring bar, and its tip is fitted into a click portion 14b of the safety cover 14 which is folded over the folded upper cover 12 so that the safety cover 14 is fixed with an appropriate force. ing. The stop pin 11 is also a spring bar, and the length of the band 9 can be substantially adjusted by selecting the stop holes 12a, 12a formed in the upper lid 12. Reference numeral 35 in FIG. 4 and the like denotes a washer.

Next, the operation of the diver band buckle configured as described above will be described. When the slider 3 is pulled out from the lower plate 4 to increase the length of the band, the safety lid 14 is raised upward by overcoming the resistance of the click portion 14a from the state shown in FIG. With the opening rotation of the safety lid 14, the latch 32 is pressed downward by the pressing portion 14a to rotate, and the latch pawl 3
Since the slider 2a is removed from the locking hole 3b, the slider 3 can be freely extended and moved. After the slider 3 has been sufficiently pulled out, the finger is released from the safety lid 14 to be in a free state. If the length of the slider 3 is too large, the slider 3 is pushed and reduced to adjust to a desired length. At this time, the latch claw 3
Reference numeral 2a retreats upward with the pushing force of the slider 3 to allow the slider 3 to move in a reduced manner.

When the timepiece is to be worn on the body, the safety cover 14 is turned up
7 and 27 are compressed to release the projection 24 from being pinched, and the upper lid 12 and the middle plate 7 are rotated as they are to open them widely.

In this state, pass the arm through the band, and in the rain,
The middle plate 7 and the upper lid 12 are folded. At this time, button 2
The sandwiching portions 27a, 27a of 7, 27 are pushed right and left by the projections 24 to pass through the heads of the projections 24.
The lower plate 4, the middle plate 7, and the upper lid 12 are fixed in a folded state by being pushed back by the fixing springs 26, 26 to hold the projection 24 therebetween. Next, the safety cover 14 is lowered onto the upper cover 12 to complete the mounting of the watch.

During the above operation, if a force for rotating the middle plate 7 below the lower plate 4 is applied to the middle plate 7 for some reason, the sub-link 7a operates and the middle plate 7 Rotation downward is free, and the middle plate 7 is prevented from being bent.

[0027]

As described above, according to the first aspect of the present invention, there is provided a diver band buckle in which the number of parts of the latch mechanism is small, the shape of the locking hole is simple, and the cost is low. Can be. Also, the sublink is
Since the rotation of the lower middle plate is free,
Even when the rotating force acts, the bending of the middle plate is prevented.
You.

In the buckle for a diver band according to the first aspect, when the lower plate is provided with a fixing mechanism for fixing the middle plate and the upper lid in a folded state, the function and operability are not inferior to those of the conventional product, and However, a simple diver band buckle can be obtained.

In the buckle for a diver band according to the first or second aspect, when the latch mechanism is configured to prevent the extension movement of the slider with respect to the lower plate and allow the slider to move freely, the structure is simple and the same as the conventional one. A buckle for a diver band whose length can be easily adjusted can be obtained.

In the buckle for a diver band according to any one of claims 1 to 3, the connecting shaft is a spring bar, and the safety cover is rotated on the folded upper cover. In this case, in the configuration in which the click portion that locks to the tip of the spring bar is formed, the connecting shaft functions to connect the middle plate and the upper lid and to fix the safety lid, which has an effect of further simplifying the structure. .

[0031]

[0032] The method according to any one of claims 1 to 4
Compression of latch spring in diver band buckle
A spring, a slider cover and a latch attached to the lower plate
If it is provided between the two, the elasticity of the latch spring
Will act on the latch more efficiently than
This has the effect that operation is smooth and accurate.

[Brief description of the drawings]

FIG. 1 is an external view showing an embodiment of a diver band buckle according to the present invention.

FIG. 2 is a side view of the diver band buckle of FIG. 1;

FIG. 3 is also a sectional view.

FIG. 4 is a plan view showing a part of the same.

FIG. 5 is a cross-sectional view showing a relationship between an upper lid and a safety lid and the like.

FIG. 6 is a cross-sectional view showing a relationship between a slider, a lower plate, and the like.

FIG. 7 is a plan view of a lower plate.

FIG. 8 is also a sectional view.

FIG. 9 is a plan view of a slider.

FIG. 10 is also a side view with a part cut away.

FIG. 11 is a plan view of a middle plate.

FIG. 12 is also a sectional view.

FIG. 13 is a cross-sectional view showing a relationship between a lower plate, a sublink, a middle plate, and the like.

FIG. 14 is a bottom view of the latch.

FIG. 15 is a cross-sectional view of a conventional diver band buckle in a folded state.

FIG. 16 is a cross-sectional view showing an open state.

FIG. 17 is a plan view of a part of the same.

FIG. 18 is a sectional view showing a relationship between a latch piece, a cam member, and the like.

FIG. 19 is a cross-sectional view showing a relationship between a projection, a hook-shaped button, and the like.

FIG. 20 is a view of the hook-shaped button as viewed from below, with the cross section of the sleeve and the projection.

[Explanation of symbols]

 1, 9 band 2 connecting pin 3 slider 3b locking hole 4 lower plate 4a slider cover 6 two bent shaft 7 middle plate 7a sub link 8 connecting shaft 11 stop pin 12 upper cover 13 mounting shaft 14 safety cover 14b click part 17 fixing mechanism 31 Latch mechanism 32 Latch 32a Latch claw 33 Latch spring

Continuation of front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A44C 5/00-5/24 A44B 11/00-11/28

Claims (5)

(57) [Claims] 1. A lower plate (4) provided at one end with a slider (3) connected to one of the bands (1) so as to be extendable and retractable, and the other end of the lower plate (4) has one end bent at two ends. (6) Lower plate (4)
A middle plate (7) foldably connected to the middle plate (7), and one end of the other end of the middle plate (7) is foldably connected to the middle plate (7) by a connection shaft (8); An upper cover (12) having the other end connected to the other band (9), and a lower cover (4) which is rotatably mounted on one end of the lower plate (4) by a mounting shaft (13) and which is folded. A safety lid (14) that is pivoted upward to prevent the opening rotation of the upper lid (12), and operates by opening rotation of the safety lid (14), and at least extends to the lower plate (4) until then; A buckle for a diver band, comprising: a latch mechanism (31) for freely moving the slider (3), which has been stopped and fixed, wherein the latch mechanism (31) is attached to the slider (3) in its length direction. And a latch claw (32a) for locking a plurality of locking holes (3b) formed along the mounting shaft (1).
A latch (32) which is rotatably mounted on 3) and is rotated by the opening rotation of the safety lid (14) to release the latch claw (32a) from the locking hole (3b);
4) is rotated the latch is pivoted (32) in the opposite direction by a latch pawl (latch spring (33 engaging the 32a) in the locking hole (3b)), the above intermediate plate ( 7) is a connecting shaft via a sub-link (7a).
(8) A buckle for a diver band, which is attached to (8) . 2. A lower plate (4) with an intermediate plate (7) and an upper lid (12).
The buckle for a diver band according to claim 1, further comprising a fixing mechanism (17) for fixing the buckle in a folded state. 3. The latch mechanism according to claim 1, wherein the latch mechanism is configured to prevent the extension movement of the slider with respect to the lower plate and to allow the slider to move freely. Diver band buckle. 4. The connecting shaft (8) is a spring bar, and the safety cover (14) is placed on the upper cover (1) in a folded state.
The diver band according to any one of claims 1 to 3, wherein a click portion (14b) is formed to be engaged with a tip of the spring bar when rotated upward. For buckle. 5. The latch spring (33) is a compression spring,
The buckle for a diver band according to any one of claims 1 to 4, wherein the buckle is provided between the latch (32) and the slider cover (4a) attached to the lower plate (4).