JP2004121361A - Buckle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reliably prevent unexpected separation of a separation part and coming-off by magnetic and mechanical locking function between its buckle members. <P>SOLUTION: The buckle has a first buckle member 1 and a second buckle member 2 which are detachably coupled to each other. The first buckle member 1 is provided with a hook member 7 and a first magnet 5 and the second buckle member 2 is provided with an insertion hole 12 for the hook member 7, a locking part 13 and a second magnet 11 facing the first magnet 5. When the first buckle member 1 and the second buckle member 2 are fitted to each other, the first magnet 5 and the second magnet 11 are transferred to a position where the hook member 7 is locked by the locking part 13. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a buckle used for a band (bracelet) such as a wristwatch band or a magnetic band having a separable fastening end.
[0002]
[Prior art]
Conventionally, there are an open type and a closed type in a wristwatch band and a magnetic band. Since a closed type band cannot be separated on the way, it is necessary to pass a wrist through the band during use. Therefore, for example, a folding buckle configuration in which the inner diameter is enlarged and reduced at the wrist is provided. On the other hand, since the open type band can be separated in the middle, it can be easily attached to and detached from the wrist.
[0003]
[Problems to be solved by the invention]
However, in such an open type band, when it is worn on the wrist, it is separated by some impact and falls off the wrist, or it is lost without noticing the fall. There were many cases. In order to solve such inconveniences, a complicated configuration has been separately adopted so far in order to attach a chain or stably maintain a connection state of a fastening portion. However, adopting such a complicated configuration not only causes an increase in the cost of the entire band, but also causes a problem that the operation of attaching and detaching the band to and from the wrist becomes troublesome.
[0004]
The present invention solves the problems of the conventional buckle as described above, and the band can be easily attached to and detached from the wrist, and the buckle members are magnetically and mechanically locked while the band is being worn. An object of the present invention is to provide a buckle that can surely prevent inadvertent separation and detachment at a fastening portion.
[0005]
[Means for Solving the Problems]
To achieve the above object, a buckle according to claim 1 of the present invention has a first buckle member and a second buckle member which are attached to both ends of a band and are separably connected to each other. A pair of hook members and a first magnet are provided between the hook members on the back side of the first buckle member, and the second buckle members correspond to the hook members. And a second magnet that faces the first magnet and is movable toward the locking portion of the insertion hole. When the first buckle member and the second buckle member are overlapped by being inserted into the insertion hole, the key member is engaged with the engaging portion of the insertion hole by the magnetic force of the first magnet and the second magnet. When stopped and tightened It said first buckle member with the magnetic force of the magnet with each other, characterized in that to be able to move fixed relative to the second buckle member.
[0006]
In the invention according to claim 1, when the first buckle member and the second buckle member are overlapped and the key member is inserted into the insertion hole, the first magnet and the second magnet interact with each other. With this magnetic force, the key member can be automatically locked to the locking portion of the insertion hole. In addition, by pressing the first buckle member in the direction of the second buckle member, the magnetic force of the magnelet is released, and the locking of the key member is released, so that the first buckle is moved from the second buckle member. It can be easily and freely separated.
[0007]
Further, the buckle according to claim 2 is characterized in that the first buckle member and the second buckle member are provided with a locking holding member for holding a locking state of the key member with respect to the locking portion. .
According to the second aspect, the engaged state between the first buckle member and the second buckle member is securely held, and therefore, the inadvertent release of the engaged state without any manual operation is prevented. It can be reliably prevented.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
The present invention will be described in detail with reference to the embodiments shown in the drawings. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a side view of a first buckle member, FIG. 3 is a rear view of FIG. 3, FIG. 4 is a front view of FIG. 4, and FIG. It is the front view and side view of. FIG. 7 is a cross-sectional view of the buckle.
[0009]
As shown in FIG. 1, the buckle according to the present invention includes a first buckle member 1 and a second buckle member 2 opposed thereto. The ends of the first buckle member 1 and the second buckle member 2 are attached to both ends of the band 3 via connecting portions 4 respectively. The band 3 is provided with a health promotion magnet member and a decorative member.
[0010]
As shown in FIGS. 1, 2 to 4, the first buckle member 1 of the present invention is formed in an elongated rectangular shape, and the entire front surface side is bent very slightly in the shape of a "C". Is formed. The back side is a flat surface, and the magnet 5 is buried in almost the center. Keys (hook) members 7, 7 of a predetermined height provided with locking pieces 6 whose front ends (rear ends) are bent in an L-shape are formed at positions facing each other with the magnet 5 interposed therebetween. The bending direction of these key members 7 is the same direction, and is the direction of the fixing member 4 of the band 3 on the figure (the right direction in the figure).
[0011]
On the back side of the first buckle member 1, a rectangular concave portion 8 having a predetermined depth is formed so as to bite into the wall thickness at a position sandwiched between the hook members 7. The plate-shaped first magnet 5 is fixed in the recess 8. The first magnet 5 is formed so as not to protrude to the back side of the first buckle member 1.
[0012]
The first buckle member 1 is preferably molded in a rectangular plate shape using a metal material that does not generate rust, for example, nickel / chrome. A display unit 9 for displaying a specific design may be formed in the center part on the front surface side. At the end of the first buckle member 1, a connecting portion 4 is formed to be thick over a predetermined length, and is connected to one end of the band 3 at the thick portion.
[0013]
Next, as shown in FIGS. 1, 5 and 6, the second buckle member 2 is molded from a metal material equivalent to that of the first buckle member 1 into a substantially same rectangular plate shape. The front side of the second buckle member 2 is a flat surface, and has a concave portion 10 having a predetermined depth penetrating into the wall thickness. A plate-shaped second magnet 11 is inserted into the concave portion 10, and insertion holes 12 through which the hook member 7 can be inserted are provided at two positions sandwiching the concave portion 10. As shown in FIGS. 6 and 7, the insertion holes 12 are formed with engagement notches 13 with which the jaw (jaw) -shaped engaging pieces 6 of the key member 7 that bends in an L shape are engaged. ing.
[0014]
Further, the left end of the second buckle member 2 is also formed to be thick over a predetermined length, and this thick portion is connected to the connecting portion 4 which is connected to the other end (the other end) of the band 3. Has become.
[0015]
Further, the second buckle member 2 is formed so as to be bent slightly in a "<" shape with respect to the band 3 as a whole. The mounting surface side of the second magnet 11 is a flat surface that can be in close contact with the mounting surface side of the first buckle member 1 on which the first magnet 5 is mounted.
[0016]
The first buckle member 1 and the second buckle member are attached to both ends of the band 3, that is, the one end and the other end, and are separated from each other when not attached to a wrist of a person. On the other hand, when the band 3 is worn on the wrist of a person, the band 3 is bent, and the first buckle member 1 and the second buckle member 2 at the two ends are connected to the first magnet as shown in FIG. 5 and the second magnet 11 are joined so as to face each other.
[0017]
This joining is performed by inserting each key member 7 provided in the first buckle member 1 into each insertion hole 12 provided in the second buckle member 2 as shown in FIG. . Each insertion hole 12 has a size that allows the locking portion 6 of the key member 7 to be freely inserted. At the timing of insertion of the key members 7 into the insertion holes 12, the joining position of the first buckle member 2 with respect to the second buckle member 2 is at the position indicated by the chain line in FIG. The locking piece 6 of the member 7 is also at the position shown by the chain line in the insertion hole 12.
[0018]
On the other hand, at this time, the first magnet 5 is also shifted to the position shown by the dashed line and is not directly opposed to the second magnet 11, so that the two magnets 5 and 11 are acted upon by a magnetic force which is to face each other. I do. Accordingly, this magnetic force acts as a force to slide the first buckle member 1 with respect to the second buckle member 2 in the direction of arrow P by a predetermined amount. For this reason, the key member 7 moves in the same direction in the insertion hole 12, and the locking piece 6 of the key member 7 engages with the engagement notch 13.
[0019]
Therefore, only by performing the above-described joining operation of the first buckle member 1 to the second buckle member 2, the engagement between the key member 7 and the engagement notch 13 by the electromagnetic force of the two magnets 5, 11 is achieved. Due to the joint holding, even if an external force is inadvertently applied, it is not easily separated. If the external force is not continued even if the external force is applied, the original engagement and holding state is returned again by the electromagnetic force of the magnets 5 and 11, so that the band 3 does not drop from the wrist carelessly. .
[0020]
On the other hand, in order to separate the first buckle member 1 in the engaged and held state from the second buckle member 2 as described above, as shown in FIG. After being held in the chain line position by being shifted in the direction opposite to the arrow P direction, it may be separated from the second buckle member 2 at this holding position.
[0021]
The operation for separating the first buckle member 2 can be performed by rotating the first buckle member 1 in the direction of arrow R with the leading edge Q of the second buckle member 2 as a fulcrum. Relatively easy and smooth.
[0022]
FIG. 8 shows another embodiment of the present invention. This is accomplished by fixing a cylindrical support member 21 to one side surface of the second buckle member 2 and connecting the other end of the long loop member 22 having one end supported by the shaft support member 21 to the first buckle member. The locking projections 23 provided on one side surface can be locked and held. Numeral 24 is a spherical knob attached to the other end of the long loop member 22 for performing the locking and holding operation and the locking and releasing operation.
[0023]
By providing the locking holding member S having such a configuration, the coupling state of the first buckle member 1 to the second buckle member 2 is further stabilized by the engagement of the long loop member 22 with the locking projection 23 by a finger operation. Is held. Further, the engagement and holding state of the long loop member 22 with respect to the locking projection 23 can be released easily and easily by operating the knob 24 with the claw, and the separating operation of the first buckle member 1 with respect to the second buckle member 2 can be performed. It can be done easily.
[0024]
【The invention's effect】
As described above, according to the present invention, the engagement between the first buckle member and the second buckle member is maintained by the sliding bias by the magnetic force of the magnet of the first buckle member. Despite the simple and low-cost connection structure between the member and the second buckle member, a stable connection state can be maintained without being easily separated by careless external force, while being easily artificially performed. Separation operation can be realized. Therefore, after the band is attached to the wrist, even if an unexpected external force is applied, the band can be prevented from falling off due to the careless separation of the first buckle member and the second buckle member. . Further, since the connecting operation utilizes the magnetic force of the two magnets, it can be performed extremely easily and quickly, and is convenient in handling.
[0025]
Further, by providing the first buckle member and the second buckle member with a locking holding member for holding the locked state of the key member with respect to the locking portion, the first buckle member, the second buckle member, Is reliably held, and therefore, it is possible to reliably prevent the inadvertent release of the engaged state without any manual operation.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention. FIG. 2 is a side view showing a first buckle member. FIG. 3 is a rear view showing a first buckle member. FIG. FIG. 5 is a front view showing a second buckle member. FIG. 6 is a side view showing a second buckle member. FIG. 7 is a cross-sectional view showing the entire buckle of the present invention. FIG. Plan view showing another embodiment [Description of reference numerals]
DESCRIPTION OF SYMBOLS 1 ... 1st buckle member 2 ... 2nd buckle member 3 ... band 4 ... connecting part 5 ... 1st magnet 6 ... locking piece 7 ... key member 8, 10 ... recess 11 ... 2nd magnet 12 ... insertion Hole S: Lock holding member

Claims (2)

A buckle having a first buckle member and a second buckle member attached to both ends of a band and separably connected to each other,
A pair of hook members and a first magnet are disposed between the hook members on the back side of the first buckle member, and the second buckle member is engaged with a position corresponding to the hook member. A second magnet, which is provided with an insertion hole with a stopper and is movable toward the locking portion of the insertion hole facing the first magnet,
When the key member is inserted into the insertion hole and the first buckle member and the second buckle member are overlapped with each other, the magnetic force of the first magnet and the second magnet causes the key member to be inserted into the insertion hole. A buckle, wherein the first buckle member is movable and fixed to the second buckle member by the magnetic force of the magnets, the first buckle member being fastened by being locked to the locking portion. The buckle according to claim 1, wherein the first buckle member and the second buckle member are provided with a locking holding member for holding a locking state of the key member with respect to the locking portion.

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