JP3248899B2 - Double door 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 double-door buckle (clasp) mainly provided for accessories such as a watch band, a bracelet or a necklace.

[0002]

2. Description of the Related Art As a buckle for an accessory, a pair of middle plates are connected to both ends of a lower plate by connecting pins so as to be foldable in the same plane along the lower plate, and a band or the like is attached to a free end of each middle plate. The upper lid connected to the upper lid is hingedly connected to each other, and the upper lid is provided with a fixing mechanism for fixing both upper lids close to each other and folded on the lower plate. It is known (JP-A-9-252814, JP-A-10-57123).

[0003]

In the conventional double-door buckle, the pair of middle plates are folded in the same plane along the lower plate, so that the developed length of the lower plate and the pair of middle plates is increased. To increase the (connection length), the length of the lower plate and the middle plate must be increased. Therefore, it is difficult to reduce the size as a whole, and it may not be possible to combine designs and sizes suitable for accessories of various sizes, and there is a problem that applications are narrow and limited.

[0004] It is an object of the present invention to provide a double-door buckle that can be downsized as a whole without impairing operability. Another object of the present invention is to provide a double door buckle that is easy to handle.

[0005]

In order to achieve at least one of the above objects, according to the present invention, a pair of middle plates are connected to both ends of a lower plate by connecting pins so as to be foldable, respectively. At the free end of each middle plate, the upper lids connected to the bands are respectively connected foldably with hinge pins, and fixed to the upper lid in a state where both upper lids are close to each other and folded on the lower plate. In the double door buckle provided with a fixing mechanism, the length of both middle plates with respect to the lower plate is set such that the hinge pin portions of both middle plates overlap vertically with the upper lid folded.

In this means, the developed length of the lower plate and the pair of middle plates is theoretically larger than that of the double-ended buckle in which the pair of middle plates can be folded in the same plane along the lower plate. It becomes longer by the overlapping width of the boards. For this reason, when the unfolded length of the lower plate and the pair of middle plates is the same as that of the conventional product, the overall size can be reduced. The deployment length of the middle plate becomes longer.

[0007] In the double door buckle according to the first aspect, it is preferable that the fixing mechanism is attached to the upper lid on which the hinge pin portion of the middle plate faces upward when both upper lids are folded (claim 2). In this configuration, when one upper lid with the hinge pin portion of the middle plate facing upward is fixed by a fixing mechanism, the other upper lid with the hinge pin portion of the middle plate facing downward is automatically fixed.

In the double door buckle according to the second aspect, the fixing mechanism is provided on the projection provided on the lower plate and on the upper cover so as to be able to protrude and retract in the width direction of the upper cover, and is moved outward by a fixing spring. It is preferable that a pair of hook-shaped buttons sandwiching the protrusion with a pinching portion is used. In this configuration, the pair of hook-shaped buttons are pushed outward by the action of the fixing spring, and the projections are sandwiched between the sandwiched portions to fix the upper lid. When the pair of hook-shaped buttons are pressed inward against the elasticity of the fixing spring in the above-mentioned fixed state, the holding portion is opened and separated from the projection, so that the fixing of the upper lid is released.

In the double door buckle according to any one of claims 1 to 3, a locking portion is provided on a middle plate whose hinge pin portion is lower when both upper lids are folded, and when both upper lids are folded. A locking claw for locking the locking portion may be provided on the lower plate (claim 4). In this configuration, after the fixing by the fixing mechanism of the upper lid in which the hinge pin portion of the middle plate is on the upper side is released, if necessary, the locking portion is removed from the locking claw to release the locking of the other upper lid.

[0010] In the double door buckle according to the fourth aspect, the locking portion may be a pipe rotatable in a circumferential direction. In this case, the pipe rotates freely to facilitate locking and separation from the locking claw.

[0011] In the double door buckle according to any one of claims 1 to 5, the lower plate is formed with a fitting portion into which a middle plate with the hinge pin portion down when the upper lids are folded is fitted. Is preferable (claim 6). In this configuration, the middle plate having the hinge pin portion at the bottom is fitted into the fitting portion of the lower plate in a folded state. Therefore, the overall thickness does not increase.

[0012]

Embodiments of the present invention will be described with reference to the accompanying drawings. 1 to 7 show an embodiment of a double door buckle according to the present invention. The double door buckle includes a lower plate 1, a middle master plate 2, a middle slave plate 3, a master upper lid 4 and a slave upper lid 5.

One end of the lower plate 1 is connected to the parent middle plate 2 by connecting pins 7, and the other end is connected to the child middle plate 3 by connecting pins 8. The parent middle plate 2 can be folded over the lower plate 1 by fitting its base end 2a into the fitting portion 1a of the lower plate 1,
In addition, the child middle plate 3 is configured such that the base end 3a and the free end 3b
And can be folded over the lower plate 1 by fitting into the fitting portions 1b and 1c. The lengths of the parent middle plate 2 and the child middle plate 3 with respect to the lower plate 1 are equal to the free end 2b of the parent middle plate 2 and the free end of the child middle plate 3 when the two middle plates 2 and 3 are folded. 3b are overlapped vertically.

A parent upper lid 4 is connected to a free end of the parent middle plate 2 with a hinge pin 10 so as to be foldable, and a child upper lid 5 is connected to a free end of the child middle plate 3 with a hinge pin 11. The child upper lid 5 can be folded over the child intermediate plate 3 by fitting the base end 5a into the fitting portion 3c of the child intermediate plate 3. In the folded state of the two middle plates 2 and 3, the base end 5a of the child upper cover 5 overlaps with the free end 3b of the child middle plate 3 below the free end 2b of the parent middle plate 2. I have. The upper lids 4 and 5 have connection holes 4b and 5b for connecting the bands 13 and 14 with connection shafts 15 and 16 such as spring bars, respectively.

Reference numeral 18 denotes a fixing mechanism for fixing the parent upper lid 4 to the lower plate 1 in a folded state. The fixing mechanism 18 is provided on the sleeve 21 of the main upper cover 4 so as to be able to protrude and retract in the width direction of the main upper cover 4.
The pinch portions 23a are moved outward from each other at 2, 22.
A pair of left and right hook-shaped buttons 23, 23 sandwiching the projection 20 with 23a. When the hook-shaped buttons 23, 23 are pressed inward with fingers, the sandwiched portions 23a, 23a open to clamp the projection 20. Is to be solved.

The lower surfaces of the sandwiching portions 23a, 23a hold the conical head 20a of the projection 20 when the parent cover 4 is folded.
, The pinches 23a, 23a open and the head 20
The inclined surfaces 23b, 23b open downward in a C-shape so as to pass the upper part a. A protrusion 20 is provided on
Is formed to project upward.

The lower plate 1 is provided with a locking claw 1d, and the child middle plate 3 is provided with a locking portion 25 made of a pipe. The locking claw 1d is provided with the locking portion 25 when the child middle plate 3 is folded.
, And is elastically deformed, and the locking portion 25 is locked so that the child middle plate 3, that is, the child upper lid 5 is kept in a folded state. The locking portion 25 is rotatably and loosely fitted to the mounting shaft 26 so that locking to the locking claw 1d and detachment from the locking claw 1d are performed smoothly.

Next, the operation of the double-leafed buckle constructed as described above will be described. 1 to 6 show both upper lids 4,
5 shows a state where the lower cover 5 is fixed to the lower plate 1 in a folded state. In this state, the parent upper cover 4 is directly fixed to the lower plate 1 by the fixing mechanism 18, and the child upper cover 5
The upright rotation of the base end portion 5a and the free end portion 3b (the hinge pin 11 portion) of the intermediate child plate 3 is sealed by the free end portion 2b (the hinge pin 10 portion) of the parent intermediate plate 2 superposed thereon. On the other hand, since the locking portion 25 of the child middle plate 3 is locked by the locking claw 1d and fixed to the lower plate 1, the upper lids 4 and 5 are not in the expanded state. An accessory (not shown) equipped with a buckle does not come off the body without permission.

In order to release the upper cover 4 from the above state and release the upper cover 4, the buttons 23, 23 are pressed and shrunk with fingers to release the projection 20, and the upper cover 4 is pulled upward. Board 2
Is rotated right in FIG. If the attachment / detachment operation to the body can be performed with this, the operation is performed with the child upper lid 5 in a folded state.

When opening the parent cover 4 is not enough,
By strongly pulling the child upper lid 5 upward, the locking portion 25 is released from the locking claw 1d, and the child middle plate 3 is rotated to the left in FIG.

To fold and fix the upper lids 4 and 5,
First, the child upper lid 5 is folded, and then the parent upper lid 4 is folded.
When the parent cover 4 is folded, when the parent cover 4 is strongly pressed toward the lower plate 1, the head 20 a of the projection 20 pushes open the pinching portions 23 a, 23 a of the buttons 23, 23, and relatively raises the portion. Since it passes, even if the buttons 23 and 23 are not pressed and shrunk with a finger, the buttons 23 and 23 are automatically fixed.

The fixing mechanism 18 shown in the figure mainly includes the projection 20 and the hook-shaped buttons 23, 23, and is provided between the lower plate 1 and the parent upper cover 4. However, the structure is not limited to that shown in the figure. Therefore, various design changes can be made. Further, for example, as in the above-mentioned Japanese Patent Application Laid-Open No. 9-252814, a fixing mechanism can be provided between the upper lids 4 and 5.

Depending on the application of the buckle, the locking claw 1
It is possible to omit d and the locking portion 25. The locking portion 25 may not be a pipe. Upper lid 4,5
Has a great influence on the design of the buckle, and its shape is arbitrary.
For example, the shapes of the connecting pieces constituting the parts 3 and 14 are approximated without limit.

[0024]

As described above, according to the first aspect of the present invention, a small double-door buckle whose deployment length is the same as that of the conventional product and whose operability is not inferior, and the same size as the conventional product. Thus, a double-sided buckle with a long deployment length and excellent operability, or a double-sided buckle that moderately compromises between them can be obtained. The advantage is that the structure is not complicated and simple.

In the double door buckle according to the first aspect, when the fixing mechanism is attached to the upper lid where the hinge pin portion of the middle plate is on the upper side in the folded state of both upper lids, both upper lids are directly connected by one fixing mechanism. Or, it is fixed indirectly, so that the structure becomes simpler and the operability is improved.

In the double door buckle according to the second aspect, the fixing mechanism is provided on the projection provided on the lower plate and on the upper lid so as to be able to protrude and retract in the width direction of the upper lid, and is moved outward by a fixing spring. With a pair of hook-shaped buttons that sandwich the projections at the clip portion, the upper lid can be fixed securely and easily, and the fixation can be released.

[0027] In the double door buckle according to any one of claims 1 to 3, a locking portion is provided on a middle plate whose hinge pin portion is lower when both upper lids are folded, and when both upper lids are folded. When the locking claw for locking the locking portion is provided on the lower plate, even if the fixing of one of the upper lids is released by the operation of the fixing mechanism, the other upper lid maintains the folded state. The length of deployment can be changed by deploying the top lid in two stages, making it easy and reliable to perform these operations with the best deployment length according to operations such as attaching and detaching accessories and correcting rotation position it can.

In the double door buckle according to the fourth aspect, when the locking portion is a pipe rotatable in the circumferential direction,
The free rotation of the pipe facilitates locking and separation from the locking claw.

In the double door buckle according to any one of claims 1 to 5, the lower plate is provided with a fitting portion into which the middle plate whose hinge pin portion is located downward in the folded state of both upper lids is formed. An increase in thickness due to weight is prevented.

[Brief description of the drawings]

FIG. 1 is a side view of a double-folded buckle according to the present invention in a folded state.

FIG. 2 is a sectional view of the double door buckle shown in FIG. 1;

FIG. 3 is also a plan view.

FIG. 4 is a plan view showing a part of the cross section.

FIG. 5 is a right side view of the double door buckle shown in FIG. 1;

FIG. 6 is a sectional view of a fixing mechanism.

FIG. 7 is a plan view showing a developed state of a lower plate, a parent middle plate, a child middle plate, and the like.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lower plate 1b, 1c Fitting part 1d Locking claw 2 Parent middle plate 2a, 3a Base end 2b, 3b Free end 3 Child middle plate 4 Parent upper lid 5 Child upper lid 7,8 Connecting pin 10,11 Hinge pin 13,14 Bands 18 Fixing mechanism 20 Projection 20a Head 21 Sleeve 22 Fixing spring 23 Hook-shaped button 23a Nipping part 25 Locking part

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A44C 5/00-5/24 A44B 11/00-11/28

Claims (6)

(57) [Claims] 1. A pair of middle plates (2, 2) at both ends of a lower plate (1).
3) are foldably connected to each other by connecting pins (7, 8), and bands (13, 1) are attached to the free ends of the intermediate plates (2, 3).
The upper lids (4, 5) respectively connected to the upper lid (4) are connected to each other so as to be foldable by hinge pins (10, 11). 1) A fixing mechanism (1) that is fixed in a folded state on
8) In the double door buckle provided with the above, the length of both middle plates (2, 3) with respect to the lower plate (1) is such that the length of both middle plates (2, 3) in the folded state of both upper lids (4, 5). A hinged buckle, characterized in that the hinge pins (10, 11) are set so as to overlap vertically. 2. The fixing mechanism (18) includes two upper lids (4, 5).
In the folded state, the hinge pins (10, 1) of the middle plates (2, 3)
2. The double door buckle according to claim 1, wherein the upper part is attached to an upper lid. 3. A fixing mechanism (18) is provided on a projection (20) provided on the lower plate (1) and on the upper lid (4) so as to be able to protrude and retract in the width direction of the upper lid (4). The double-opening type according to claim 2, further comprising a pair of hook-shaped buttons (23) which are moved outwardly from each other at (22) and clamp the projections (20) at a clamping portion (23a). buckle. 4. A locking portion (25) is provided on a middle plate (3) having hinge pins (10, 11) at the bottom in a folded state of both upper lids (4, 5). ) In the folded state, the locking portion (2)
The double-ended buckle according to any one of claims 1 to 3, wherein a locking claw (1d) for locking the 5) is provided on the lower plate (1). 5. The double open buckle according to claim 4, wherein the locking portion (25) is a pipe rotatable in a circumferential direction. 6. A fitting portion (1b, 1c) into which a middle plate (3) having hinge pin (10, 11) portions down in a folded state of both upper lids (4, 5) is fitted into lower plate (1). 6. The double open buckle according to any one of claims 1 to 5, wherein the buckle is formed.