JP3359537B2 - Middle clasp for watch band and holder used for it - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a holder for use in distillate and it for watch band, and more particularly, a spring
A spherical ceramic movable holding part having a held spherical ceramic holder. A double- ended clasp for a watch band having a holding part and a spherical ceramic movable part held by a spring used therefor.
The present invention relates to a holder having a holder.

[0002]

2. Description of the Related Art Conventionally, a double clasp type watch has been used as a clasp of a watch band for the purpose of enhancing a sense of quality. FIG.
FIG. 2 is a view showing the conventional double-ended clasp 21 (hereinafter simply referred to as “clasp”). As is apparent from the drawing, the clasp 21 conventionally used is a holding window 221 and a lock. A first upper plate 23 and a second upper plate 24 are rotatably connected to both ends in the longitudinal direction of the lower plate 22 having the stop window 222.

[0003] The first upper plate 23 is attached to the holding window 2.
21 is provided with a holding portion 25 inserted and held therein, and is connected to a band 26. Further, the second upper plate 24 is rotatably connected to the front cover 27, and the front cover 27 includes a locking piece 29 that is movable by operation of a push button 28 and is inserted and held in the locking window 222. , Band 30
It is connected to.

When the watch band is fastened to an arm or the like by using the conventional clasp, first, the first upper plate 23 is folded toward the lower plate 22 and the holding portion 25 is inserted and held in the holding window 221. Then, the second upper plate 24 and the front cover 27 are attached to the lower plate 22.
The locking piece 29 is inserted and held in the locking window 222 by folding it to the side. To remove, after pushing the push button 28 to release the locking of the locking piece 29 and the locking window 222, the second upper plate 24 and the front lid 27 are opened in the opposite direction to the case where they are locked, and further, Similarly, the first upper plate 23 is opened in the opposite direction to the case where the first upper plate 23 is fastened, and the holding window 221 is opened.
And the holding unit 25 is released.

As described above, in the conventional clasp, the watch band is fastened by holding the holding portion and the holding window and by locking the locking piece and the locking window. In some cases, the holding state became incomplete as the frequency of use increased.

Here, the relationship between the holding portion 25 and the holding window 221 used in the conventional middle clasp will be described with reference to the drawings.
FIG. 8 is a view showing a state where the first upper plate 23 is folded toward the lower plate 22 and the holding portion 25 is inserted and held in the holding window 221. As is clear from the drawing, the holding portion 25 is 2
When the holder 25 is inserted and held in the holding window 21, the entire holding portion 25 is
21, the protrusion 251 of the holding portion 25 is pushed in the direction B by the edge of the holding portion 25 and passes through the holding window 221. Is done.

As described above, in the conventional middle clasp, each time the holding portion 25 is held in the holding window 221 and each time the holding is released, the protrusion 251 of the holding portion 25 and the holding window 221 are connected. The edges come into contact with each other and the protrusion 25 of the holding portion 25
As the frequency of use increases, the protrusions 251 of the holding portion 25 and the edges of the holding windows 221 wear, and the protrusions 251 of the holding portion 25 are deformed to maintain the holding state. It was sometimes difficult.

FIG. 9 shows a case in which a holding section of another form is used. In such a case, the diameter increases toward the tip and the diameter of the tip is slightly smaller than the diameter of the holding window. A large substantially cylindrical pin 31 is used as a holding portion. When such a holding unit 31 is used,
The holding portion 31 is inserted into the holding window 221 while the edge of the holding window 221 is pressed in the direction C. After the insertion, the holding portion 3
The holding portion 31 is held in the holding window 221 by the distal end portion 1.

However, even when such a holding portion is used, as the frequency of use increases, the tip portion of the holding portion and the edge portion of the holding window that comes into contact with the holding portion are worn, and the holding state is completely maintained. Would be difficult to do.

[0010] Further, in any case where any of the holding portions is used, there is a risk that the hand may be damaged if the hand touches the holding portion.

Further, in the relationship between the holding portion and the holding window used in the conventional middle clasp, it is difficult to determine the position, and even if the position is slightly shifted, it becomes difficult to sufficiently hold the position. Or, conversely, it has been difficult to insert the holding portion into the holding window. Therefore, there is a problem that the dimensional tolerance is small.

[0012] Furthermore, in order to further enhance the sense of quality, it is necessary to make the overall thickness of the clasp of the watch band as thin as possible, so that when the watch band is put on the wrist, the holding portion is lowered. It is preferable to make the edge of the holding window thin so as not to protrude from the plate. However, as described above, since the edge of the holding window needs a certain strength to bend the holding portion, it is impossible to reduce the thickness of the edge of the holding window in the conventional clasp. Was.

[0013] Further, since the holding portion used in the conventional middle clasp generally uses metal, there is also a problem that the corrosion progresses after long-term use.

Therefore, the present invention can maintain the holding state effectively even when the frequency of use becomes high, and is easy to position, high-grade,
It is another object of the present invention to provide a buckle for a watch band having corrosion resistance and a holder used therefor.

[0015]

SUMMARY OF THE INVENTION The present invention relates to a holding window and a door.
A lower plate with a stop window and one end pivoted to one side of the watch band
And the other end is folded to the lower plate.
When it is folded to the lower plate side
A protrusion having a hollow portion, which can be inserted into the holding window of the lower plate.
A first upper plate having a raised portion, and inserted and fixed in the cavity portion
One end is connected to the lower plate so as to be freely foldable.
Connected second upper plate and one end rotate to the other of the watch band
Freely connected and the other end is the other end of the second upper plate
And further, together with the second upper plate,
Inserts and locks into the locking window of the lower plate when folded to the lower plate side
Movement in the direction perpendicular to the longitudinal direction of the watch band.
And in the longitudinal direction of the watch band by the spring
A front cover having a locking piece urged outward in a straight line,
A clasp for a watch band, wherein the holding portion is
A substantially cylindrical housing inserted and fixed in the hollow portion, and the housing
Inside the spherically mounted movably in the longitudinal direction of the housing
A movable holding portion made of ceramic; and
In addition, a tip portion of the movable holding portion projects outside the housing.
Biasing the movable holding portion to the outside of the housing so that
And a spring.

As described above, according to the present invention, the ceramic which is less worn due to the contact with the holding window is used as the first upper plate and the lower plate.
It is used as a spherical movable holding part for holding
As a result, the holding state can be maintained even when the frequency of use increases. Further, unlike the case where the first upper plate is held on the lower plate by using a metallic holding portion, the holding portion does not corrode even when used for a long time.

According to the present invention, there is provided a holding device comprising a substantially cylindrical housing and a movable holding portion movably held on the housing by projecting a substantially distal end portion from the housing via a spring. Part is used. Therefore, when the holding unit is held by the holding window and when the holding is released,
Since the movable holding part that contacts the edge of the holding window is pressed by the edge of the holding window and retracts into the housing, it is possible to further reduce the wear of the movable holding part and also prevent the edge of the holding window from being worn. can do.

Further, in the present invention, the thickness of the holding window in which the holding portion is held near the edge in contact with the holding portion is reduced. Therefore, when the clasp is fastened, the thickness of the entire clasp can be reduced, and the sense of quality can be enhanced.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Is attached to a lower plate having a holding window and a locking window,
The first upper plate that is pivotally connected to one of the doors is folded
The upper plate is connected to the lower plate side
A cavity that can be inserted into the holding window of the lower plate when folded
A projection having a portion is provided. And the cavity
A holding section is inserted and fixed in the section. In addition, the lower plate
One end of the second upper plate is foldably connected to
At the other end of this second upper plate, one end
An outer lid rotatably connected to the other of the bands is connected,
In addition, the front cover should have a
The watch band can be moved in the direction
The locking pieces urged outward in a direction perpendicular to the longitudinal direction
The lid was folded to the lower plate side with the second upper plate
The lower plate is inserted and locked in the locking window.
Have been. And, a security that is inserted and fixed in the cavity portion.
The holding portion is a substantially cylindrical housing inserted and fixed in the hollow portion.
Body and movably mounted in the housing in the longitudinal direction of the housing
And a spherical ceramic movable holding section,
The tip of the movable holding part provided in the
Move the movable holding portion outside the housing so as to protrude outward.
And a spring biasing the spring.

Here, the thickness of the edge of the holding window is preferably smaller than the thickness of the other portions. This makes it possible to reduce the thickness of the entire clasp when the holding portion is held by the holding window.

[0021]

Embodiments will be described with reference to the drawings.
FIG. 1 is a diagram showing a clasp for a watch band according to the present embodiment. In the drawing, reference numeral 1 denotes a clasp for a watch band.

In the watch band clasp 1 of this embodiment, the lower plate 2 having the holding window 201 and the locking window 202 is
The first upper plate 3 and the second upper plate 4 are rotatably connected. The first upper plate 3 has one of the watch bands 5
2 and a projection 301 having a cavity 302 is provided at a position corresponding to the holding window 201 of the lower plate 2 when the first upper plate 3 is folded toward the lower plate 2 side. As shown in (2), the holding portion 6 is inserted and fixed in the hollow portion 302. The protrusion 301 is adjusted to a size that can be inserted into the holding window 201.

On the other hand, a front cover 7 is rotatably connected to the second upper plate 4, and the other of the watch band 10 is connected to the front cover 7. As shown in FIG. 3, a locking piece 9 that is movable in a direction orthogonal to the longitudinal direction of the band by the operation of the push button 8 lowers the second upper plate 4 and the front cover 7 on the front cover 7. The locking window 20 of the lower plate 2 when folded toward the plate 2
The locking piece 9 is inserted and locked in the locking window 202 when the clasp is fixed. In FIG. 3, reference numeral 801 denotes a spring, and when the push button 8 is pressed, the locking piece 9 can move against the elastic force of the spring 8.

Here, the holding section 6 will be described with reference to FIG. 4. FIG. 4 is a view showing the structure of the holding section 6. In this embodiment, the holding section 6 is provided in a substantially cylindrical housing 601. Through a spring 603, a spherical ceramic movable holding portion 60 is provided.
2 is mounted movably in the longitudinal direction of the housing 601. At this time, in a normal state, the movable holding portion 60
The movable holding portion 602 is provided on the housing 601 so that the distal end of the movable holding portion 2 protrudes outside the housing 601. When the distal end of the movable holding portion 602 is pushed toward the housing 601, the movable holding portion 60
2 enters the housing 601. Further, when the protrusion 301 into which the holding unit 6 is inserted is inserted into the holding window 201, the tip of the movable holding unit 602 is
01 protrudes from the housing 601 so as to be in contact with the edge of the housing 601.

When the watch band is fastened using the watch band clasp of the present embodiment, first,
The first upper plate 3 is folded toward the lower plate 2, and the protrusion 301 into which the holding unit 6 is inserted is inserted into the holding window 201. In this case, when the movable holding unit 602 passes through the holding window 201, the movable holding unit 602 is pressed against the edge of the holding window 201 and
5 is pushed in the direction A in FIG. 5 and enters the housing 601, and after the holding unit 6 passes through the holding window 201, the movable holding unit 602 is again pushed by the spring and returns to the original position. 6 is held in the holding window 201. FIG. 5 shows this state. In this case, since the movable holding portion 602 is movably attached to the housing 601 by the spring 601, when pushing the movable holding portion 602 into the housing 601, only a small force is applied to the movable holding portion 602. Is fine.

Next, the second upper plate 4 and the front cover 7 are folded toward the lower plate 2. Then, the locking piece 9 provided on the front cover 7 is locked in the locking window 202 of the lower plate 2, and the clasp of the watch band is completed.

When releasing the clasp, first, the push button 8 of the front cover 7 is pressed to move the locking piece 9 inward in the direction perpendicular to the longitudinal direction of the band.
Then, the second upper plate 4 is opened in a direction opposite to the direction in which the second upper plate 4 is fastened to release the engagement between the engagement piece 9 and the engagement window 202.

Then, the holding portion 6 and the holding window 201 are released by lifting the tip portion of the first upper plate upward with a nail or the like. Also in this case, when the movable holding part 602 passes through the holding window 201, the movable holding piece 602 is pushed by the edge of the holding window 201 and enters the housing 601 side, and after the passing, the lower part is moved to the lower position. Return.

Next, an embodiment of a middle clasp for a watch band according to a third embodiment will be described. This embodiment is characterized by the structure of the holding window 201 in the lower plate 2, and the other parts are the same as those of the above embodiment. Since these are the same, only the relevant portions will be described, and description of the other portions will be omitted. The same reference numerals are used for the same parts.

In the embodiment shown in FIG. 6, as is clear from the figure, the thickness of the edge of the holding window 201 is made thinner than the thickness of the other portions. Even when folded into the lower plate 2, the overall thickness (L in FIG. 6 ) can be reduced, and the sense of quality can be enhanced. In this embodiment, similarly to the above-described embodiment, the movable holding portion 602 can be pushed into the housing 601 with a small force.
Does not need to be kept high, and the movable holding portion 602 can be sufficiently pushed into the housing 601 even if the edge of the holding window 201 is thinned.

[0031]

The present invention is embodied in the form described above and has the following effects.

In the watch band clasp of the present invention, the first
To hold the upper plate to the lower plate, a spherical ceramic
The use of the dynamic holding part reduces the wear of the movable holding part even when the frequency of use increases, so that it is possible to maintain a good holding state between the holding part and the holding window for a long period of time. It became. In addition, the use of the holding part of the spherical body prevents the hand from being hurt even when touched. Further, it has become possible to obtain a corrosion-resistant holding portion.

In addition, since a holding portion is used, in which a movable holding portion is movably mounted with a distal end portion protruding from the housing in a cylindrical housing using an elastic body, the holding portion is held with a small force. The part can be held by the holding window.

Further, in the clasp for a watch band according to the present invention, the thickness of the edge of the holding window is made thinner than other portions, so that the entire thickness is reduced even when the holding portion is held. Is possible, and it is possible to enhance the sense of quality.

[Brief description of the drawings]

FIG. 1 is a diagram showing an embodiment of a clasp for a watch band.

FIG. 2 is a view showing a relationship between a first upper plate and a holding portion in the embodiment of the watch band clasp.

FIG. 3 is a diagram showing the structure of the front cover of the embodiment of the clasp for a watch band.

FIG. 4 is a view showing a structure of a holding portion used in the embodiment of the clasp for a watch band.

FIG. 5 is a diagram showing a holding state of a holding portion and a holding window used in the embodiment of the watch band clasp.

FIG. 6 is a view for explaining another embodiment of the clasp for a watch band.

FIG. 7 is a view for explaining a conventional clasp for a watch band.

FIG. 8 is a diagram showing a holding state of a conventional holding portion of a clasp for a watch band and a holding window.

FIG. 9 is a view showing a holding state of a holding portion and a holding window of a conventional clasp for a watch band.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Middle clasp for watch band 2 Lower plate 3 First upper plate 4 Second upper plate 5, 10 Watch band 6 Holder 7 Front cover 8 Push button 9 Locking piece

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A44C 5/24

Claims (3)

(57) [Claims] 1. A lower plate (2) having a holding window (201) and a locking window (202), one end of which is rotatably connected to one (5) of a watch band, and the other end of which is the lower plate. It has a cavity (302) that is foldably connected to (2) and that can be inserted into the holding window (201) of the lower plate (2) when it is folded toward the lower plate (2). A first upper plate (3) having a projection (301), and a holding part (6) inserted and fixed in the hollow part (302).
A second upper plate (4) having one end foldably connected to the lower plate (2); and one end rotatably connected to the other (10) of the watch band, and the other end being the second The other upper plate (4) is connected to the other end thereof, and when this is folded together with the second upper plate (4) toward the lower plate (2), the locking window of the lower plate (2) (202), it is movable in a direction perpendicular to the longitudinal direction of the watch band, and a spring (80)
A clasp for a watch band, comprising: a front cover (7) having a locking piece (9) urged outward in a direction perpendicular to the longitudinal direction of the watch band according to 1); ) Is a substantially cylindrical housing (601) inserted and fixed in the hollow portion (302), and the housing (6) is inserted in the housing (601).
01), a spherical ceramic movable holding portion (602) movably mounted in the longitudinal direction, and the housing (601).
The movable holding portion (602) is urged to the outside of the housing (601) such that a tip portion of the movable holding portion (602) provided therein projects outside the housing (601). And a spring (603). 2. The holding window (20) in the lower plate (2).
The clasp for a watch band according to claim 1, wherein the thickness of the edge portion of (1) is thinner than the other portions. 3. A lower plate (2) having a holding window (201) and a locking window (202), one end of which is rotatably connected to one of the watch bands (5), and the other end of which is the lower plate. It has a cavity (302) that is foldably connected to (2) and that can be inserted into the holding window (201) of the lower plate (2) when it is folded toward the lower plate (2). A first upper plate (3) having a projection (301), a second upper plate (4) having one end foldably connected to the lower plate (2), and one end of the watch band ( 10), and the other end is connected to the other end of the second upper plate (4), and further connected to the lower plate (2) together with the second upper plate (4). When folded to the side, it is inserted and locked in the locking window (202) of the lower plate (2), and is orthogonal to the longitudinal direction of the watch band. Together is movable in direction, the spring (80
And (1) a front cover (7) having a locking piece (9) urged outward in a direction perpendicular to the longitudinal direction of the watch band. A watch band middle clasp holder (6) inserted and fixed in a hollow portion (302) provided, comprising a substantially cylindrical housing (601) inserted and fixed in the hollow portion (302). , Inside the housing (601).
01), a spherical ceramic movable holding portion (602) movably mounted in the longitudinal direction, and the housing (601).
The movable holding portion (602) is urged to the outside of the housing (601) such that a tip portion of the movable holding portion (602) provided therein projects outside the housing (601). And a spring (603).