JP2014124487A - Slide adjuster of band and buckle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slide adjuster free from a decrease with time in the engaging strength of a band and a buckle, making a buckle thickness thin, lightweight, and easily producible.SOLUTION: The slide adjuster can engage the engaging nail of a buckle with a sawtooth-like engaging groove formed along the marginal part of a band. An operation piece having an engaging nail on one end part is installed inside a buckle body, and the operation piece freely swings by bearing with a connection shaft in an intermediate point. When making the band go into the insertion space of the buckle, the marginal part of the band contacts the engaging nail of the operation piece and advances while pushing up one end part of the operation piece, and the operation piece returns to an initial state by a reaction by contacting a control piece.

Description

  The present invention relates to a slide adjuster for sliding a band with respect to a buckle and adjusting and fixing the length of the band, and in particular, for attaching a precision instrument such as a wristwatch, a smartphone, or a portable music player to an arm part. This relates to the slide adjuster.

Conventionally, a buckle is known in which an engagement groove is provided in a band (or belt), a hook of a buckle is elastically engaged with the groove, and the locked state can be released at any time.
In the Japanese Patent No. 4368023 (Patent Document 1), the present inventors provided one end of the band at the other end as a band with a buckle having a flat surface as much as possible by reducing the thickness of the buckle. A band with a buckle that is inserted into a cylindrical buckle and is annularly connected while adjusting the peripheral length, and has a serrated engagement recess along the edge of the one end, and the buckle An engagement convex portion is provided in the insertion space, and in a state where the engagement convex portion and the engagement concave portion are locked, one end portion of the band is allowed to advance in the insertion space but cannot be retracted. In the insertion space, at least a position close to the engaging convex portion is proposed, and a guide for restricting the swinging of the band in a plane orthogonal to the advancing direction of the band is proposed.

  According to the band with a buckle, since the buckle thickness is extremely thin, it is suitable as a band for attaching a precision instrument such as a wristwatch to an arm part. Due to the elastic engagement, there is a problem that the elastic force decreases with time and the engagement strength becomes weak.

  In addition, in the patent No. 5049399 (Patent Document 2), the present inventors particularly for products that require a relatively strong fastening force such as athletic shoes, competition shoes, snowboard shoes, protector locking belts, etc. Regarding the synthetic resin buckle, it is a buckle that engages the engagement claw of the buckle with a serrated engagement groove formed on the outer surface of the band, and the band is accessible to the buckle but not retractable in the locked state. The buckle is composed of an opposing bottom plate, a ceiling frame, and both side plates connecting the two, and a buckle main body having an inside of the band as an insertion space of the band, and horizontally installed on the inner side of the ceiling frame. An operating plate having an engaging claw engageable with the engaging groove of the band and having the other end as a pressing portion for releasing the engagement, the operating plate being connected to the engaging claw and the At the midpoint of the pressing part In a buckle that is swingable about the intermediate point by being supported by a connecting shaft that connects the both side plates, a slide piece that is movable in the horizontal direction on the upper portion of the operation plate is installed on the buckle body, and the slide The swing of the operation plate is restricted in a state where the piece is moved toward one end of the operation plate, and the lower surface of the slide piece is placed on the upper surface of the press portion in a state where the slide piece is moved toward the pressing portion. Proposes abutment.

  Since this buckle is provided with a lock mechanism, it is possible to prevent the engagement from being released even by a pressing force that acts directly on the pressing portion. If the release state is continued for a long time due to the action of the slide piece, the elastic force may cause a creep phenomenon (the synthetic resin will slowly move if a strong pressure is applied to the synthetic resin for a long time). There is a problem that the strength of engagement between the band and the buckle is weakened due to deterioration over time due to the property of deformation. Also, when the strength of the connecting shaft is increased using a hard material such as metal or resin that does not have elasticity, it is necessary to provide another part such as a coil spring, which would complicate the buckle structure. It has been difficult to produce a buckle that is lightweight, small and easy to manufacture.

Japanese Patent No. 4368023 Japanese Patent No. 5049399

  An object of the present invention is to provide a band and buckle slide adjuster in which the engagement strength between the band and the buckle does not decrease with time, and the buckle thickness is thin, lightweight, and easy to manufacture.

  The slide adjuster of the present invention is a band and buckle slide adjuster in which a buckle engaging claw can be engaged with a serrated engaging groove formed along the edge of the band. A buckle body comprising a top plate and a side plate connecting the two and having an inside as a band insertion space, and an engagement claw that is installed inside the buckle body and engages with the engagement groove of the band at one end. And the operation piece is supported by a connecting shaft that connects the bottom plate and / or the top plate at an intermediate point so that the intermediate point can be swung freely. A control piece is provided on the buckle body, and when the engagement claw is engaged with the engagement groove of the band and the band is advanced into the insertion space of the buckle in the locked state, The band moves forward by pushing up one end of the operation piece by contacting the engaging claw of the operation piece, and the operation piece returns to the initial state by a reaction caused by contact with the control piece. It is characterized by being able to approach the buckle but not retractable.

Preferably, the control piece is movable in the vicinity of the operation piece, and the engagement between the band and the buckle can be released by moving the control piece.
It is preferable that the control piece is movable in the vicinity of the operation piece, and the engagement between the band and the buckle can be locked by moving the control piece.
It is preferable that the engaging grooves are formed symmetrically on the opposite edges of the band.

It is preferable that a stopper is provided at the tip of the band and a belt for extending the band is housed in the band.
It is preferable that a magnet is provided on at least the tip of the band and the bottom plate of the buckle.

It is preferable that a hooking portion capable of pulling the buckle and the band with one fingertip is provided on the outer surface of the band.
It is preferable that metal is inserted into a portion of the engagement groove of the buckle that comes into contact with the engagement claw.
It is preferable that a case accommodating a precision instrument is provided on the buckle.

  In the slide adjuster of the present invention, when the band enters the insertion space of the buckle, the control piece controls the swinging of the operation piece, so that the band can approach the buckle but cannot retract. As a result, the engagement strength between the band and the buckle does not decrease with time, and a buckle that is lightweight, small, and easy to manufacture can be provided without providing another component such as a coil spring. Further, according to the slide adjuster which can be disengaged by moving the control piece in the vicinity of the operation piece, the band can be easily pulled out with one hand.

It is a side view (FIG. 1 (1)) of the slide adjuster of this invention, and sectional drawing (FIG. 1 (2)-(5)) in the zz cutting | disconnection line of the same figure. It is a perspective view which shows the modification of an engaging groove. It is the perspective view (FIG. 3 (1)) which shows other embodiment of a slide adjuster, and the top view (FIG. 3 (2)-(4)) which cut | disconnected the slide adjuster in the horizontal surface parallel to a band. It is a perspective view which shows embodiment which applied the slide adjuster to the wristwatch. It is a figure which shows another embodiment of a slide adjuster.

Hereinafter, embodiments of a buckle according to the present invention will be described with reference to the drawings.
FIG. 1 shows a slide adjuster of the present invention comprising a band and a buckle. FIG. 1 (1) is a side view thereof, and FIGS. 1 (2) to (5) are z-z cuts of FIG. 1 (1). It is sectional drawing in a line.

  In these drawings, a serrated engagement groove is formed from the front end (portion close to the buckle) to the end at the edge of the band having the required length, width and thickness. Furthermore, the latching | locking part 15 of the magnitude | size to which a fingertip is hooked is provided. The length, width and thickness of the band 10 are appropriately determined depending on the purpose of use of the slide adjuster.

  The buckle 20 is mainly composed of a flat and cylindrical buckle body 24 including a bottom plate 21, a top plate 22 facing the bottom plate 21, and side plates 23 and 23 connecting the bottom plate 21 and the top plate 22. The buckle body 24 is opened with the sliding direction of the band 10 as an insertion opening, and the inside thereof becomes an insertion space 26 of the band 10. In the present embodiment, the length of the bottom plate 21 in the longitudinal direction (the sliding direction of the band 10) is made longer than the length of the top plate 22 in the longitudinal direction, whereby the buckle 20 is attached to the connected body (that is, a watch or the like). In addition to facilitating attachment, the band 10 is smoothly inserted. Further, the same effect can be obtained by making the length of the top plate 22 in the longitudinal direction longer than the length of the bottom plate 21 in the longitudinal direction.

  On the inside of the buckle body 24, an operation piece 30 having a size that fits therein is installed. An engaging claw 31 that can engage with the engaging groove 12 of the band 10 protrudes from one end of the operation piece 30.

A connecting shaft 35 is formed at an intermediate portion in the longitudinal direction of the operation piece 30, and the connecting shaft 35 is supported by the bottom plate 21 and / or the top plate 22. As a result, the operation piece 30 is swingable with the intermediate portion as a fulcrum.
In this embodiment, the connecting shaft 35 has a circular cross section, but may have an elliptical shape or other various cross sectional shapes. It is desirable that the connecting shaft 35 pivotally supports the operation piece 30 and is made as thin as possible in order to ensure smooth operability. Just do it.

  In the present invention, the material of the connecting shaft is not particularly limited, and a hard material such as a metal or resin that does not have elasticity may be used in addition to the synthetic resin having elasticity. When these hard materials are used, the strength of the connecting shaft itself is increased, so that the engagement strength between the band 10 and the buckle 20 is improved.

  The buckle body 14 is provided with a control piece 40 that controls the swinging of the operation piece 30. There is no particular limitation on the shape of the control piece 40 as long as it functions to control the swing of the operation piece 20 as described later.

Next, the operation of the slide adjuster will be described. FIG. 1B shows a state in which the band 10 is inserted into the insertion space 26 of the buckle 20 and the engagement claw 31 of the buckle 20 is engaged with the engagement groove 12 formed along the edge of the band 10. Is shown. The engagement groove 12 has a sawtooth cross-sectional shape in the sliding direction, that is, a tapered surface that gradually becomes deeper in the traveling direction of the band 10 and a wall surface that rises substantially perpendicularly from the deepest position.
The excision depth of the engagement groove 12 (the length in the width direction of the band 10) is preferably about 2 to 10 mm, and the interval between the adjacent engagement grooves 12 and 12 is preferably about 3 to 7 mm. .

In the present embodiment, the engagement groove 12 is completely cut out in the thickness direction of the band 10. However, if the thickness of the band 10 is sufficient, the cutout is formed in the thickness direction of the band 10 as shown in FIG. It is also possible to make the engaging groove 12a halfway.
Further, as shown in FIG. 2 (2), an engagement groove 12b is provided in an intermediate portion in the thickness direction of the band 10, that is, the sawtooth engagement groove 12b is formed by retreating inside the band. It is also possible to make 10 edges linear. In this case, since the band width in the longitudinal direction of the band 10 is ensured, the band 10 does not easily buckle. Moreover, since the shape cut in a sawtooth shape does not appear in the appearance, the degree of freedom in the design surface can be increased.

  In FIG. 1 (2), when the band 10 is made to enter the insertion space 26 from the insertion port on the left side of the buckle, the edge of the band 10 comes into contact with the engaging claw 31 of the operation piece 30, and the operation piece 30. The one end portion of the engagement member 31 moves forward while pushing up one end of the engagement claw 31, and the engagement claw 31 is disengaged from the engagement groove 12 (see FIG. 1 (3)). When the band 10 is further advanced, the operation piece 30 returns to the initial position by the reaction caused by the contact with the control piece 40, and the engagement claw 31 engages with the adjacent engagement groove 12 (see FIG. 1 (4)). ). The band 10 enters the insertion space 26 while repeating this operation, and the approach / separation position of the band 10 with respect to the buckle 20 is adjusted. That is, in this state, the engaging claw 31 is engaged with and locked with the predetermined engaging groove 12, and the band 10 can be advanced with respect to the buckle 20, but cannot be retracted.

In the present invention, since the control piece 40 functions as a spring that urges one end of the operation piece 30 toward the engagement groove 12 of the band 10, it is not necessary for the connecting shaft 35 itself to have a spring function. Therefore, if a material such as a metal or resin that does not have elasticity is used for the connecting shaft 35, a strong force acts in the direction of pulling the band 10 away from the buckle 20 even if the connecting shaft 35 is thinned to reduce the size of the buckle. There is no possibility that the connecting shaft 35 is damaged. Also, the engagement strength is weakened due to a decrease in the elastic force of the connecting shaft 35 over time due to the creep phenomenon (the property that the synthetic resin slowly deforms when a strong pressure is applied to the synthetic resin for a long time). There is no fear of it.
Furthermore, it is not necessary to provide a coil spring or the like as a separate part, and in addition to minimizing the number of parts, the structure of the buckle 20 can be simplified.

  The size of the insertion space 26 of the buckle 20 may be any size as long as the band 10 can be smoothly inserted, but the band 10 swings in a plane perpendicular to the advancing direction of the band 10 at a position close to the engagement claw 31. It is preferable to provide a guide for regulating the above. By installing the guide, not only the band 10 can be smoothly inserted, but also the engagement groove 12 of the band 10 and the engagement claw 31 of the buckle 20 are accurately engaged, and the operation near the engagement claw 31 is performed. Problems such as breakage of the piece 30 or buckling of the band 10 in the vicinity of the engaging claw 31 can be avoided. In order to install the guide in the insertion space 26 of the buckle 20, it is desirable to form the insertion space 26 by partially narrowing the inner wall of the buckle 20 at a position close to the engagement claw 31. It is not enough to install a body guide member. It is preferable that the length and width of the guide be as equal as possible to the width and thickness of the band 10 and to be in contact with the periphery of the band 10. It is preferable that the length of the guide in the band advance direction is equal to or longer than the interval between the adjacent engagement grooves 12 and 12 described above.

  The hooking portion 15 of the band 10 is not necessarily provided, but by providing this, the band 10 can easily enter the insertion space 26 of the buckle 20. In the present embodiment, the hooking portion 15 is formed as a through-hole penetrating in the thickness direction of the band 10, but the shape of the hooking portion 15 is not particularly limited and has a size and shape that can hook a fingertip. As long as it has. In the case where the latching portion 15 has a protrusion shape, it is preferable that the protrusion is configured to be able to stand up and lie down so as not to protrude from the surface of the band 10 except when it is operated (see FIG. 2 (1)). Further, the number of the latching portions 15 is not limited to one, and a plurality of the latching portions 15 may be provided at intervals (see FIG. 2 (2)).

  Next, another embodiment of the slide adjuster will be described with reference to FIG. 3 (1) is a perspective view of the slide adjuster, and FIGS. 3 (2) and 3 (3) are plan views of the slide adjuster of FIG. 3 (1) cut along a horizontal plane parallel to the band. However, the same members as those in the embodiment described so far are denoted by the same reference numerals, and the description thereof is omitted.

  In this embodiment, the engagement grooves 12 and 12 are formed symmetrically at the edge of the band 10. Moreover, the point which the control piece 40 slides in the vicinity of the operation piece 30 in the advancing / retreating direction of the band is different from the embodiments described so far. The control piece 40 is provided on the buckle body 24 integrally with the slide operation unit 42. There is no particular limitation on the shape and size of the slide operation unit 42, and it is sufficient that the slide operation unit 42 has such a size and shape that the fingertip of one hand can be hooked. The slide operation unit 42 is not necessarily provided on the control piece 40, but the slide operation of the control piece 40 can be facilitated by providing this.

  Further, slide guides 27 and 27 for guiding the movement of the control piece 40 are provided on both side plates 23 and 23 of the buckle 20 (see FIG. 3A). In the present embodiment, the slide guides 27 and 27 are formed as grooves on the side plates 23 and 23 of the buckle 20. However, the position and shape of the slide guide 27 are not particularly limited as long as they can guide the smooth movement of the control piece 40. There is no.

  If the control piece 40 is slid along the slide guides 27 and 27 toward the other end 32 side of the operation piece 30, the operation piece 30 is rotated about the connecting shaft 35 as shown in FIG. Since the engaging claw 31 located on the opposite side is lifted and the engaging claw 31 is disengaged from the engaging groove 12, the band 10 can be freely slid. When the control piece 40 is returned to the original position along the slide guides 27, 27, the operation piece 30 returns to the original state (see FIG. 3B).

  There is no particular limitation on the sliding direction of the control piece 40. Although not shown, when the slide piece 40 is moved to the engagement claw 31 side of the operation piece 30, the engagement claw 31 side of the operation piece 30 is directly lifted by the slide piece 40, and as a result, the engagement between the band 10 and the buckle 20 is released. It is also possible to adopt a structure to be used.

  According to this embodiment, if the control piece 40 is slid, the band 10 can be freely pulled out from the buckle 20 with one hand. Therefore, it is optimal as a slide adjuster used for a watch band or the like that requires one-handed operation.

  Further, it is possible to lock the engagement between the band 10 and the buckle 20 by moving the control piece 40. As shown in FIG. 3 (4), when the control piece 40 is slid to the engagement claw 31 side of the operation piece 30, the control piece 40 presses the engagement claw 31 so that it does not come off the engagement groove 12. can do.

  In the present embodiment, the control piece 40 is slid to the engagement claw 31 side, but there is no particular limitation on the slide direction for locking the engagement. Although not shown, when the slide piece 40 is moved to the other end 32 side of the operation piece 30, the other end 32 side of the operation piece 30 is lifted by the slide piece 40, and the operation piece 30 rotates about the connecting shaft 35. As a result, it is possible to employ a structure in which the engaging claw 31 positioned on the opposite side is more strongly engaged with the engaging groove 12 and, as a result, the engagement between the band 30 and the buckle 10 is locked.

Next, another embodiment of the slide adjuster will be described with reference to FIG. 4, taking an embodiment of a wristwatch as an example.
FIG. 4 is a perspective view of the wristwatch as viewed from the buckle side. The band 10 and the buckle 20 are connected to both ends of the disc-shaped watch body 2, and the band 10 is locked at the buckle 20 and connected in an annular shape. . A stopper 18 is provided at the tip of the band 10 and a belt 11 for extending the band length is accommodated in the band 10.
In the present embodiment, when the band 10 is loosened, the stopper 18 contacts the buckle 20, and even when the engagement is released, the band is prevented from coming out of the insertion space 26 and the ring 10 being prevented from being released from the ring state. .

  When the band 18 is pulled out from the buckle 20 while the stopper 18 is in contact with the buckle 20, the belt 11 extends as a result of the appearance of the belt 11 housed inside the band 10 (see FIG. 4 (2)). .) Therefore, when wearing the wristwatch, the ring diameter is enlarged as shown in FIG. 4 (2), and after the band 10 is fitted to the arm in this state, the band and the buckle are pulled by the fingertip of one hand, thereby It can be adjusted to the optimal ring diameter. When removing the wristwatch, it is possible to easily expand the ring diameter enough to remove the wristwatch from the arm by releasing the engagement and pulling the band.

  Next, another embodiment of the slide adjuster will be described with reference to FIG. In this embodiment, magnets 50 and 50 are provided on the tip of the band 10 and the bottom plate 21 of the buckle 20, respectively, and when attaching a wristwatch or the like, the tip of the band 10 can be easily fitted into the insertion opening of the buckle 20. Furthermore, if the magnet 50 is appropriately provided from the front end to the end of the band 10 and the magnet 50 is also appropriately provided on the bottom plate 21 of the buckle 20, the band 10 serves as a guide for entering the buckle 20 along the bottom plate 21. To play a role.

  In the slide adjuster of the present invention, metal can be inserted into the engagement groove 12 of the band 10. In particular, in the engaged state of the band 10 and the buckle 20, by inserting a superalloy into the portion where the engaging claw 31 of the buckle 20 abuts, the engagement strength between the band 10 and the buckle 20 can be increased and the appearance can be improved. The appearance is also improved, increasing the sense of quality of the slide adjuster. When it is necessary to bend the band 10 itself, it is preferable to insert the metal 60 at a place other than the deepest position of the engagement groove 12 as shown in FIG.

In the slide adjuster of the present invention, the buckle 20 can be made extremely thin. Therefore, as shown in FIG. Can be provided. Thereby, the buckle 20 and the precision instrument are integrated, and the design of a wristwatch or the like can be made simpler.

10 Band 12 Engaging groove 11 Belt 15 Hook
18 Stopper 20 Buckle 24 Buckle body 26 Insertion space 30 Operation piece 31 Engaging claw 35 Connecting shaft 40 Control piece 50 Magnet

Claims (9)

In the band and buckle slide adjuster in which the engagement claw of the buckle can be engaged with the serrated engagement groove formed along the edge of the band,
The buckle comprises a bottom plate and a top plate facing each other and a side plate connecting the two, and the inside of the buckle is a band insertion space. The buckle is installed inside the buckle body, and has an engagement groove for the band at one end. The operation piece has an engaging claw that can be engaged, and the operation piece is supported by a connecting shaft that connects the bottom plate and / or the top plate at an intermediate point, so that it can swing around the intermediate point as a fulcrum. age,
A control piece for controlling the swing of the operation piece is provided on the buckle body, and the engagement claw is engaged with the engagement groove of the band so that the band enters the insertion space of the buckle in the locked state. Then, the edge of the band comes into contact with the engaging claw of the operation piece and moves forward while pushing up one end of the operation piece, and the operation piece is in an initial state by a reaction caused by contact with the control piece. The band and buckle slide adjuster is characterized in that the band is accessible to the buckle but cannot be retracted by returning to.   The slide adjuster according to claim 1, wherein the control piece is movable in the vicinity of the operation piece, and the engagement between the band and the buckle can be released by moving the control piece.   The slide adjuster according to claim 1 or 2, wherein the control piece is movable in the vicinity of the operation piece, and the engagement between the band and the buckle can be locked by moving the control piece.   The slide adjuster according to any one of claims 1 to 3, wherein the engagement grooves are formed symmetrically at opposite edges of the band.   The slide adjuster according to any one of claims 1 to 4, wherein a stopper is provided at a tip of the band and a belt for extending the band is housed in the band.   The slide adjuster according to any one of claims 1 to 5, wherein magnets are provided on at least a tip of the band and a bottom plate of the buckle.   The slide adjuster according to any one of claims 1 to 6, wherein a latching portion capable of pulling the buckle and the band with a fingertip of one hand is provided on an outer surface of the band.   The slide adjuster according to any one of claims 1 to 7, wherein a metal is inserted into a portion of the engagement groove of the buckle that comes into contact with the engagement claw.   The slide adjuster according to any one of claims 1 to 8, wherein a case accommodating a precision instrument is provided on an upper part of the buckle.

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