JP3168936U - Band neutral structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clasp structure of a band capable of stably, reliably, and easily fixing a connecting shaft in a pressing member made of ceramic. A C ring 7 is mounted in a receiving hole 4b of a pressing operation member 4, and one end 6a of a connecting shaft 6 is fitted into the C ring 7 to receive the one end 6a of the connecting shaft 6. It is held and fixed in the hole 4b. [Selection diagram] Fig. 5

Description

  The present invention is applied to a watch band and a band for ornaments, and relates to an intermediate structure that connects a pair of band ends.

  The Nakadome according to the present invention is provided on an annular wristwatch band wound around a user's arm, etc., for loosening or tightening the wristwatch band. The wristwatch is attached to the wristwatch and can be detached from or attached to the wrist by rotating in a single-opening or double-opening manner.

  By the way, in recent years, in order to give a high-class feeling to the band, a watch band made of a ceramic frame that exhibits a unique texture in the band is commercially available. For this type of watch band, a double door spread type middle ring like the middle ring according to the present invention is often used as a high quality middle ring.

  The middle ends are usually made of a metal component having good formability, but there is a demand for the middle ends to be made of ceramic in order to be matched with the ceramic frame. In order to cope with this, the present applicants proposed that the middle body of the middle structure used in the watch band be made of ceramics as shown in Patent Document 1.

JP 2010-29355 A

  The middle structure of the watch band is composed of components that require fine processing. And in order to open and close the middle ends, a pressing operation member (in the case of the cited document 1, a locking member 7) is usually provided so as to be easily pressed by the user. It is configured.

  The pressing operation member is provided with a portion and a member for holding and fixing a member to be connected, like other constituent members. In addition, the portion is required to have positional accuracy in order to make the connection reliable and easy, and is required to have mechanical strength for receiving the connection member.

  One of the problems with ceramic members is that so-called burrs in the mechanical strength of ceramics are small compared to metals and the like. For this reason, when a pin, a shaft, or the like is press-fitted into the receiving hole of the member, a crack may occur in the peripheral portion of the receiving hole.

  In particular, the structural member of the band middle ring has a small overall size, and a small part is subjected to fine shape processing. Therefore, when the member is made of ceramic, the press-fitting of the component connection is stable and reliable. Making it easier is one of the technical problems in manufacturing.

  SUMMARY OF THE INVENTION Accordingly, the present invention provides a band retaining structure that solves the above-described conventional problems and can stably and reliably fix the connecting shaft in the ceramic pressing member. Objective.

  The band retaining structure of the band of the present invention includes a movable member provided with an end portion of the band, an outer plate member arranged side by side on the side of the movable member so as to pivotally support the movable member, and the outer An end portion is exposed at one side of the plate member, and a pressing operation member is provided so as to move in the outer plate member, and is disposed on the other side of the outer plate member and is engaged with the movable member. A band retaining structure including a locking member provided with a detachable protrusion, and a connecting shaft that penetrates the outer plate member and movably connects the locking member and the pressing member. In the band retaining structure used for the band in which at least the outer surface portion of the piece member constituting the band is formed of a ceramic material, the pressing operation member is formed of a ceramic material, and the connecting shaft is An elastic tube is inserted into the receiving hole formed in the pressing member. Characterized in that fixed.

The present invention is characterized in that the pressing operation members having the same structure are arranged symmetrically on both sides of the outer plate member.
Further, the present invention is characterized in that the elastic tubular body is a metal C-ring having a groove formed in an axial direction.
Further, the present invention is characterized in that the elastic tubular body is a metal capsa tube having protrusions formed in the circumferential direction.

  According to the intermediate structure of the band of the present invention, the connecting shaft that connects the ceramic pressing operation member and the locking member exposed to the outside of the intermediate connection is connected to the stop hole of the pressing operation member via the elastic tube. Therefore, the press-fitting can be more stably and reliably performed more easily than when the connecting shaft is directly press-fitted into the stop hole of the ceramic pressing operation member.

  Therefore, even if the pressing member is configured to protrude from the side of the ceramic band, the pressing member can be made of ceramic as described above. It becomes easy to provide a high-quality band in which the entire structure is matched with ceramics.

It is a perspective view which shows the middle part of the band to which the embodiment of the middle terminal concerning this invention is applied. It is a perspective view which shows the open end of the middle end and band of this embodiment. It is a perspective view of the middle part which removed the band in this embodiment. It is a perspective view which shows the open state of the middle end of this embodiment. It is sectional drawing of the press action | operation member and related member of Embodiment 1 of Nakadome. It is a perspective view of the press operation member and related member of Embodiment 1 of Nakadome. It is a disassembled perspective view of the press action | operation member and related member of Embodiment 1 of Nakadome. It is a disassembled perspective view of a pair of press action | operation member and related member of Embodiment 1 of Nakadome. It is sectional drawing of the latching state of Embodiment 1 of Nakadome. It is sectional drawing of the state at the time of latch release of Embodiment 1 of Nakadome. It is a disassembled perspective view of the press action | operation member and related member of Embodiment 2 of Nakadome. It is a disassembled perspective view of a pair of press action | operation member and related member of Embodiment 2 of Nakadome.

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

  1 to 4, 1 is a double-spreading type middle end, 2 and 2 are movable members in which the ends of the bands B1 and B2 are connected to one end, and 3 is the other end of the movable members 2 and 2 rotating. The outer plate members 4 and 4 that are pivotally supported and accommodate the movable members 2 and 2 in the inner grooves 3a and 3b are located outside the partition wall portion 3c between the inner grooves 3a and 3b of the outer plate member 3. A pair of pressing operation members that protrude and are disposed so as to be exposed from both outer sides of the bands B1 and B2.

  5 to 7, 5 is a return spring housed in one receiving hole 4 a of the pressing member 4, 6 is a connecting shaft in which one end 6 a is held and fixed in the other receiving hole 4 b of the pressing member 4, Reference numeral 7 denotes a C-ring that is inserted into the other receiving hole 4b of the pressing operation member 4 and into which the one end portion 6a of the connecting shaft 6 is inserted. The C ring 7 is an elastic tubular body that is fixed to the receiving hole 4b by receiving the one end 6a of the connecting shaft 6 by fitting the one end 6a of the connecting shaft 6 as described above, and the groove 7a is formed in the axial direction. Has been. Reference numeral 8 denotes a flat plate member that is inserted into the inner wall surface of the pressing member 4 to prevent the C-ring 7 from coming off.

  Reference numeral 9 denotes an engaging member made of a plurality of flat plate members for holding and fixing the other end portion 6b of the connecting shaft 6 by caulking or the like, and 10 and 10 project inward adjacent to the other end portion 6b of the connecting shaft 6. Thus, pin-shaped protrusions 11 that are caulked and fixed to the locking members 9, 9 are shaft insertion holes into which the connecting shaft 6 is inserted.

  As shown in FIG. 8, the pressing operation member 4 and the related members having the above-described configuration are respectively disposed in the recesses 3 d provided on both sides of the partition wall 3 c portion of the outer plate member 3 in a symmetrical state. . The connecting shaft 6 is movably inserted into the center of the three through holes 12 formed in the partition wall 3c, and the protrusions 10 and 10 of the locking member 9 are inserted into the through holes 12 on both sides. The tip portions of the portions 10 and 10 are detachably locked to the locking holes 2 a provided in the movable member 2 through the through holes 12.

  As shown in FIG. 9, in the assembled state, the pair of protrusions 10 in each locking member 9 is inserted into the through holes 12 on both sides of the outer plate member 3 on the side opposite to the side on which the pressing member 4 is disposed. Thus, the tip of the protrusion 10 is detachably locked in the locking hole 2 a of the movable member 2. Further, one end portion 6 a of the connecting shaft 6 is held and fixed as described above to the receiving hole 4 a of the pressing operation member 4 facing through the through hole 12, and the opposite end portion is connected to the projection portion 10 by the return spring 5. It is biased in the direction in which the engagement with the through hole 12 is maintained.

  In this state, the middle terminal 1 is closed, the movable member 2 and the outer plate member 3 are engaged by the locking hole 2a and the protrusion 10, and the ends of the bands B1 and B2 are closed. is there.

  FIG. 10 shows a state in which the latching state shown in FIG. 9 is released and the middle stay 1 is opened, and the user inserts the exposed end of the pressing member 4 provided on the outer plate member 3 with a finger or the like. By pressing in the direction (arrow direction), the connecting shaft 6 and the locking member 9 are moved together with the pressing operation member 4, and the protruding portion 10 of the locking member 9 is moved outward. As a result, the engagement between the protrusion 10 and the locking hole 2 a of the movable member 2 is released, and the movable member 2 can rotate with respect to the outer plate member 3.

  The basic configuration of Embodiment 2 of the present invention shown in FIGS. 11 and 12 is the same as that of Embodiment 1, but the elastic tube is different. In the second embodiment, as the elastic tubular body, a metal capsa tube 20 having a projection 20a protruding in the circumferential direction is used. The capsa tube 20 is fitted into one end 6a of the connecting shaft 6 and is fitted into the other receiving hole 4b of the pressing member 4, and the one end 6a of the connecting shaft 6 is fixed to the receiving hole 4b.

  The present invention is applied to various bands, in particular, the middle ends of various bands that can be worn on the body such as jewelry.

DESCRIPTION OF SYMBOLS 1 Middle end 2 Movable member 3 Outer plate member 4 Pressing operation member 4b Receiving hole 5 Return spring 6 Connecting shaft 7 C ring 7a C ring groove 9 Locking member 10 Protruding part 20 Capsa tube 20a Capsa tube protrusion

Claims (4)

A movable member provided with an end of a band;
An outer plate member arranged side by side of the movable member and pivotally supporting the movable member so as to be opened and closed;
An end portion exposed at one side of the outer plate member, and a pressing member provided to move in the outer plate member;
A locking member disposed on the other side of the outer plate member and provided with a protrusion that is detachable from the movable member;
A band retaining structure comprising a connecting shaft that movably connects the locking member and the pressing member through the outer plate member,
In the middle structure of the band used for the band in which at least the outer surface portion of the piece member constituting the band is formed of a ceramic material,
An intermediate structure for a band, wherein the pressing member is formed of a ceramic material, and the connecting shaft is fixed to a receiving hole formed in the pressing member via an elastic tube.   The band retaining structure according to claim 1, wherein the pressing operation members having the same structure are arranged symmetrically on both sides of the outer plate member.   The band retaining structure according to claim 1, wherein the elastic tubular body is a metal C-ring having a groove formed in an axial direction.   The band retaining structure according to claim 1, wherein the elastic tubular body is a metal capsa tube having protrusions formed in a circumferential direction.

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