JP2016097286A - Buckle structure with band length adjusting mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a buckle structure with a band length adjusting mechanism in which a length of a band can be adjusted by finger-tips simply and easily, and the careless adjustment of a band length is never caused, and further the durability is superior.SOLUTION: When a user rotates an operation member 9 disposed in a buckle body 1 in the circumferential direction by finger tips, a long hole 8 of a slide member 7 receives a rotational force of a spiral teeth part 10 formed in the operation member 9, and the slide member 7 is moved in the inside of the buckle body 1. With this arrangement, a band end connected to the slide member 7 moves to the band longitudinal direction with respect to the buckle body 1. A band length can be adjusted by adjusting the amount of rising and setting of this band end 3.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a buckle structure provided with a mechanism that is provided at a connecting portion of a band and can be adjusted to a band length suitable for an attachment site.

  Usually, in order to adjust the length of the band, the frames constituting the band are often removed. Various adjustment mechanisms have been proposed and implemented as an adjustment mechanism for removing the frame.

  In general, a connecting pin for connecting pieces is screwed from the side of the piece or a structure using a long axis having elasticity is used.

  However, the structure using screws and long shafts requires special jigs such as small screwdrivers and thin tweezers when adjusting the band length, and the band length can be adjusted easily and easily. There is a problem that can not be.

  Therefore, in order to adjust the length of the band, like the bands described in Patent Documents 1 and 2, an opening is formed in a part of the outer surface of the lid-like buckle body, and a groove is formed around the opening. A shaft-shaped operation member formed with a ring is provided so as to be rotatable in the circumferential direction, and the wearer can rotate the operation member in the circumferential direction to adjust the amount of protrusion and withdrawal of the band with respect to the buckle body. is there.

  According to Patent Documents 1 and 2, in a state where the band is worn on the wearer's arm, the wearer rotates the operation member in the circumferential direction with the fingers of the arm on the side where the band is not worn. The buckle body can be adjusted in and out. For this reason, the wearer can easily and easily adjust the length of the band without using a special jig for the adjustment.

  In the structure described in Patent Document 1, an operation member (wheel) that is always exposed is provided at a substantially central portion of the outer surface of the lid (cover) of the buckle body, and the wearer surrounds the operation member on the cover surface with a finger. By rotating in the direction, the amount of protrusion and depression of the band with respect to the cover is adjusted.

  In the structure described in Patent Document 2, an operation member that is always exposed at a corner portion on the outer surface of the lid-like buckle body is provided, and the wearer rotates the operation member on the surface of the buckle body in the circumferential direction with a finger. By adjusting the amount of protrusion and depression of the band with respect to the buckle body.

Special table 2010-510844 Utility Model Registration No. 3159560

  In the structures described in Patent Documents 1 and 2, the wearer can easily adjust the band with respect to the buckle body by rotating the operation member in the circumferential direction with fingers. However, since the operation member is always exposed on the outer surface of the lid-like part of the buckle body, the operation member can easily touch a finger or clothes, and the operation member rotates as the band is carried or moved. As a result, there is a problem that the amount of incoming and outgoing bands changes carelessly.

  Of course, the operating force of the operating member may be increased so that it cannot be easily rotated. However, if the band itself is small, such as a decorative object or a watch band, the operating member also has a relatively small shape. The operation of such a small member with a strong / heavy force is not easy for a general user, particularly a woman, and causes a problem in practical use.

  Accordingly, the present invention solves the above-described problems, and can easily and easily adjust the band length with a fingertip or the like, and does not cause inadvertent band length adjustment, and has excellent durability. An object of the present invention is to provide a buckle structure with a length adjusting mechanism.

  In the buckle structure with a band length adjusting mechanism of the present invention, a shaft-like operation member having a spiral tooth portion formed in the periphery thereof is provided inside the lid-like buckle body so as to be rotatable in the circumferential direction. A moving member formed so that a plurality of elongated holes meshing with the helical tooth portion are inclined in the same direction as the helical tooth portion is provided so as to be movable in the longitudinal direction of the band inside the buckle body, and the moving member One band is fixed to the buckle body, and the other band is connected to the buckle body, and the moving member is moved by the rotation of the operation member in the circumferential direction by pressing from the helical tooth portion to the long hole peripheral portion. By moving, it is possible to adjust the amount of protrusion of the one band with respect to the buckle body.

  The buckle structure with a band length adjusting mechanism of the present invention is characterized in that an urging member that elastically contacts the operating member and restricts the position and movement of the operating member is provided inside the buckle body. .

  Further, the buckle structure with a band length adjustment mechanism of the present invention is characterized in that the operation member and the biasing member are provided inside the unit body with a part of the peripheral portion of the operation member exposed. To do.

  In the buckle structure with a band length adjusting mechanism of the present invention, the operation member is a worm gear structure.

  Further, the buckle structure with a band length adjusting mechanism of the present invention is characterized in that an uneven portion for preventing slip is formed on the outer peripheral portion of the operation member.

  Moreover, the buckle structure with a band length adjusting mechanism of the present invention is characterized in that the other band is connected to the buckle body through a foldable middle ring.

  According to the buckle structure with a band length adjusting mechanism of the present invention, the wearing / removing adjustment of the band with respect to the buckle body can be performed simply and easily only by the wearer rotating the operation member in the circumferential direction with a finger.

  In addition, since the operation member is provided inside the buckle body and is not exposed to the outside during normal mounting, the operation member will not be accidentally caught or touched by other objects, and malfunction will not occur. The set state can be maintained stably.

  Further, the helical tooth portion of the operating member and the plurality of long holes of the moving member that is the operated member mesh with each other, and the moving member of one band is moved by pressing from the helical tooth portion to the peripheral portion of the long hole. Therefore, the band length adjusting mechanism is excellent in durability.

It is an external appearance perspective view of the buckle of the watch band which is an embodiment of the present invention. It is a disassembled perspective view of the buckle of this embodiment. It is a perspective view which shows the meshing state of the operation member and moving member of this embodiment. It is the perspective view which looked at the buckle of this embodiment from the back side. It is a perspective view which shows the moving member and peripheral member of this embodiment. It is a perspective view which cuts and shows a part of unit body (hatching part) seeing the buckle of this embodiment from the back side.

  Preferred embodiments of the present invention will be described below with reference to the drawings.

  1 and 2, reference numeral 1 denotes a buckle body as a lid-like front cover whose lower surface is open, 2, 3 are band ends made of a plurality of pieces, and 4 is a folded structure (in this example, a double-folded structure). ), And a curling portion 4a formed at one end of the middle retaining ring 4 is connected to a locking hole portion 1a of the buckle body 1 by a pin, and a locking hole formed at the other end of the middle retaining ring 4 The end of one band 2 is connected to the portion 4b by a pin.

  Reference numeral 5 denotes a push button box having a known structure in which a push button 6 that opens and closes the buckle body 1 of the middle end 4 is incorporated.

  Reference numeral 7 denotes a slide member which is a moving body provided so as to be movable in the longitudinal direction of the band (in the direction of arrow A) inside the buckle main body 1. The plurality of long holes 8 are formed in the plate-like portion 7b of the slide member 7 so as to be inclined with respect to the moving direction.

  Reference numeral 9 denotes an operation member having a worm gear structure in which a spiral tooth portion 10 is formed in the periphery, and the spiral tooth portion 10 meshes with the long hole 8 of the slide member 7 as shown in FIG. The operation member 9 has a non-slip uneven portion formed on the outer peripheral portion of the helical tooth portion 10, and as shown in FIGS. 2, 4, and 5, in the buckle body 1, A box-shaped unit body 11 arranged on the side is supported by a shaft body 12 so as to be rotatable in the circumferential direction.

  As shown in FIGS. 2, 4, and 6, the unit body 11 has a pair of protrusions 11 a provided on one end side locked in the locking hole 1 b of the buckle body 1. A pair of guide bodies 14 and 15 as urging members having a substantially U shape in plan view and provided with a spring 13 are slidably provided, and one guide body 14 has a buckle body by a small projection 14a. The unit body 11 is held inside the buckle body 1 by being locked in the one locking hole 1 c.

  As shown in FIG. 6, the end portion of the other guide body 15 receives the elastic force of the spring 13 and elastically contacts a part of the side periphery of the helical tooth portion 10, and acts as a biasing member to act as a buckle body of the operating member 9. This contributes to the fixing within 1 and the generation of resistance (appropriate operation weight) during the rotation operation.

  The operation of each part of this embodiment will be described. Opening and closing of the middle door 4 is the same as a known one, and when a user pushes the push button 6 on the side of the buckle body 1 inside, a known locking structure built in the push button box 6 is provided. When the buckle body 1 is lifted and the buckle body 1 is lifted, the middle retainer 4 becomes openable. Further, by closing the buckle body 1, the middle terminal 4 is held in the closed state by the push button box 6.

  When adjusting the band length, the middle ring 4 is opened as described above, and the helical tooth portion 10 of the operation member 9 on the back side of the buckle body 1 is exposed as shown in FIG. In this state, when the user rotates the outer peripheral portion of the helical tooth portion 10 in the circumferential direction with the fingertip, the rotation causes a force that the helical tooth portion 10 pushes the peripheral side wall portion of the long hole 8 to the side. The member 7 moves in the longitudinal direction.

  As described above, when the slide member 7 moves inside the buckle body 1, the other band end 3 moves in the band longitudinal direction with respect to the buckle body 1, and the amount of protrusion and withdrawal of the band end 3 can be adjusted. In this way, the slide member 7 can be moved steplessly in the band longitudinal direction, so that the band length can be finely adjusted.

  Thus, according to this embodiment, since the operation member 9 is located on the back side of the buckle body 1 during normal use, it does not touch or rotate by touching other objects. There is no change in length. In addition, the buckling structure with a band length adjustment mechanism with excellent durability is achieved because the adjustment operation is performed reliably and firmly by the contact / pressing action between the helical tooth portion 10 and the long hole 8.

  It should be noted that the shape and number of members described in the present embodiment need to be changed as appropriate in accordance with the specifications and the like in actual implementation.

  INDUSTRIAL APPLICABILITY The present invention is effective as a buckle structure that can adjust the band length of a watch band or a band of a decorative tool.

1 Buckle body (front cover)
2, 3 Band edge 4 Nakadome (two folds)
5 Push button box 6 Push button 7 Slide member (moving member)
8 Long hole 9 Operation member 10 Spiral tooth part 11 Unit body 12 Shaft body 13 Spring 14 and 15 Guide body

Claims (6)

Inside the lid-shaped buckle body, an axial operation member having a spiral groove formed around is provided to be rotatable in the circumferential direction.
A plurality of elongated holes that mesh with the spiral groove of the operation member are provided so that a moving member formed so as to be inclined in the same direction as the spiral groove is movable in the band longitudinal direction inside the buckle body,
Fixing one band to the moving member, and connecting the other band to the buckle body;
By rotating the operation member in the circumferential direction, the moving member is moved by pressing from the spiral groove portion to the long hole peripheral portion, thereby enabling adjustment of the amount of protrusion and protrusion of the one band with respect to the buckle body. A buckle structure with a band length adjusting mechanism.   2. The buckle structure with a band length adjusting mechanism according to claim 1, wherein an urging member that restricts the position and movement of the operation member by elastically contacting the operation member is provided inside the buckle body.   The buckle with a band length adjusting mechanism according to claim 1 or 2, wherein the operation member and the biasing member are provided inside a unit body with a part of a peripheral portion of the operation member exposed. Construction.   The buckle structure with a band length adjusting mechanism according to any one of claims 1 to 3, wherein the operation member has a worm gear structure.   The buckle structure with a band length adjusting mechanism according to any one of claims 1 to 4, wherein an uneven portion for preventing slip is formed on an outer peripheral portion of the operation member.   2. The buckle structure with a band length adjusting mechanism according to claim 1, wherein the other band is connected to the buckle body via a foldable middle ring.

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