JP2005137790A - Push-type clasp and watch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a push type clasp which can be reduced in thickness and width and a watch equipped with the clasp. <P>SOLUTION: In a clasp 7, a pair of sliding plates 22A, 22B which are formed in a unit with each of a pair of push buttons 12A, 12B are arranged apart from each other in the width direction of a band 5 in a clasp body 12, and a pair of joints 15A, 15B which respectively engage with the sliding plates 22A, 22B are provided at a bottom plate 13. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a push-type nut and a timepiece having the same.

2. Description of the Related Art Two-folding, three-folding, double-opening (double-opening), and the like are known as middle rings for wristwatches, watch bands, and accessories. For example, a two-fold type middle end is provided with a middle main body provided at the end of the band, and a locking member that is pivotally connected to the middle main body. After being rotated so as to pinch the pin provided at the end, it is further rotated so that the locking portion provided on this locking member can be locked to the middle terminal body.
In this kind of middle ends, a pair of push buttons that can move in the width direction of the band are provided in the middle portion of the intermediate ends, and the lock can be easily released by operating (pushing) the pair of push buttons. There is a push-type Nakadome that can be used. In the push type middle ends, when the width of the middle ends is narrowed, a part of a pair of push buttons is overlapped (see, for example, Patent Document 1).
Japanese Unexamined Patent Publication No. 7-313222

However, if a part of the pair of push buttons is arranged so as to overlap, it is difficult to make the middle terminal main body thin. For this reason, there is a problem that it is difficult to produce a thin middle strip having a small width.
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a push-type middle stop that can be thinned and reduced in width, and a timepiece having the middle stop.

  In order to solve the above-described problems, the present invention has a pair of push buttons provided so as to be capable of being pressed in the width direction of the band, and a latch body that is provided on the band, and a latch that is latched to the trunk body. In the push-type center stopper that is provided with a stop member and releases the lock by the operation of the push button, the center terminal body is formed integrally with the push button, and is arranged at an interval in the width direction of the band. A pair of slide members, a biasing member that biases the pair of slide members in the direction in which the distance increases, and a holding member that holds the pair of slide members slidably in the width direction of the band. And the said locking member has a pair of engaging part with which a pair of said slide member each engages, It is characterized by the above-mentioned. According to this configuration, a pair of slide plates formed integrally with each of the pair of push buttons are arranged at intervals in the width direction of the band, and a pair of engagement portions to which the slide plates engage respectively. By providing the slide member, the middle member can be made thinner by that amount without overlapping the slide member. Moreover, the width | variety of a middle end can be narrowed by arrange | positioning a pair of slide member adjacent.

  In the above configuration, it is preferable that each of the slide members is provided with an opening to which the corresponding engaging portion is engaged. In this case, each of the slide members is provided in the thickness direction of the slide member. A recessed portion is provided, and the opening is provided at the bottom of the recessed portion, and the engaging portion has a distal end portion that is hooked on the bottom of the recessed portion through the opening, and the opening includes When engaged, it is preferable that the tip end part fits in a recessed space of the recessed part.

  Further, in the above-described configuration, the pair of slide members are provided with positions where the cutout portions cut out in the width direction of the band are opposed to each other, and the urging member is formed by the opposed cutout portions. It is preferable to be arranged in a space. Further, in the above configuration, the holding member has both ends of a metal plate member bent and pin hole portions through which a connecting pin for connecting the holding member to the cover of the middle body is inserted. It is preferable that a part of these pin hole portions is cut and bent in the length direction of the band to restrict the movement range of the pair of slide members in the width direction of the band.

  Further, the present invention provides a watch body, a band connected to both ends of the watch body, and a pair of push buttons provided at the other end of the one band and capable of being pressed in the width direction of the band. A push-type middle comprising a middle terminal body having a middle member, and a locking member coupled to the other end of the other band or rotatably coupled to the middle body. And a pair of slide members formed integrally with the push button and spaced apart from each other in the width direction of the band, and the pair of slide members. An urging member that urges in the expanding direction and a holding member that holds the pair of slide members slidably in the width direction of the band, and the locking member includes the pair of slide members. The Characterized in that it has a pair of engaging portions to be engaged. According to this configuration, a pair of slide plates formed integrally with each of the pair of push buttons are arranged at intervals in the width direction of the band, and a pair of engagement portions to which the slide plates engage respectively. By providing the slide member, the middle member can be made thinner by that amount without overlapping the slide member. Moreover, the width | variety of a middle end can be narrowed by arrange | positioning a pair of slide member adjacent.

  According to the present invention, a pair of slide plates formed integrally with each of the pair of push buttons are arranged at intervals in the width direction of the band, and a pair of engagement portions to which the respective slide plates are engaged are provided. As a result, it is possible to reduce the thickness of the middle ends and to reduce the width of the middle ends as compared with the conventional intermediate ends in which the slide members of this type are stacked.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing an external configuration of a wristwatch according to an embodiment of the present invention. The wristwatch 1 includes a timepiece main body 3 that displays a time and a band 5 that is connected to both ends of the timepiece main body 3. The timepiece main body 3 is configured by incorporating a timepiece display unit in a metal case formed of stainless steel, titanium or the like. In the present embodiment, the wristwatch that displays the time in an analog manner is exemplified, but a wristwatch that digitally displays the time may be used.

  The band 5 is configured by connecting a number of pieces made of a metal material such as stainless steel or titanium. The band 5 is composed of an upper band 5A and a lower band 5B, and these upper band 5A and lower band 5B are locked by a middle ring 7 in order to stop the wristwatch 1 at the wearing site (wearer's wrist). Is done. The band 5 is not limited to a structure in which a large number of pieces made of a metal material are connected, and may be a rubber band such as a leather band or urethane rubber.

  FIG. 2 is a perspective view showing a state in which the middle ends 7 are expanded. The middle ring 7 is a so-called three-fold type (also called a three-fold push type) middle ring, and is connected to the middle body 12 provided at the end of the upper band 5A and the end of the lower band 5B. A lower plate (locking member) 13 and a middle plate 14 that foldably connects the middle plate main body 12 and the lower plate 13. The lower plate 13 includes the middle plate main body 12 and the lower plate 13. An engaging portion 15 for locking in the folded state is provided. More specifically, the upper band 5A, the middle retainer body 12, the lower plate 13, and the middle plate 14 are connected to each other by a pin (not shown), so that the middle retainer 7 can be folded smoothly. Each of them is smoothly rotated according to the movement of the attachment part (wrist of the wearer) of the clip 7 so as to fit the attachment part.

  The engaging portion 15 passes through the window hole 16 of the intermediate plate 14 when the intermediate body 12 and the lower plate 13 are folded, and is released by operating the pair of push buttons 12A and 12B in the intermediate body 12. Engaged with the locking mechanism. In this embodiment, as the engaging portion 15, a part of the lower plate 13 is cut and raised (cut and bent), and the two inverted L-shaped engaging portions 15 A and 15 B are spaced apart in the width direction of the band 5. Is formed.

FIG. 3 is an exploded perspective view of the middle end main body 12, and FIGS. 4 and 5 are views showing a cross section and a plan view of the locking mechanism of the middle end 7. The intermediate body 12 is slidable in the width direction Y of the band 5 with the front cover 21, a pair of slide plates (slide members) 22 </ b> A and 22 </ b> B accommodated in the front cover 21. A holding body (holding member) 23 to be held is schematically configured.
The front cover 21 is formed with an opening 21A for passing a pair of push buttons 12A and 12B and a plurality of pin holes 21B. In the holding body 23, both ends of a single metal plate member are bent to form pin hole portions 26 and 27 into which connection pins (spring bars or the like) 30 are inserted. By fitting both ends of the inserted connecting pin 30 into the pin holes 21 </ b> B of the front cover 21, the connecting pin 30 is fixed to the front cover 21. Further, the holding body 23 is provided with a window hole 28 through which the engaging portion 15 (15A, 15B) of the lower plate 13 penetrates when the intermediate body 12 and the lower plate 13 are folded.

The slide plates 22 </ b> A and 22 </ b> B are arranged on the holding body 23 with an interval in the width direction Y of the band 5 and slide in the width direction Y of the band 5. The slide plates 22A and 22B are formed in a symmetrical shape, and an outer protrusion 31 protruding outward from the opening 21A or 21B of the front cover 21 is formed. The outer protrusion 31 is connected to the push buttons 12A and 12B. Become.
Further, the pair of slide plates 22A and 22B is urged by the two coil springs 40 in a direction in which the interval is increased (ie, the outside). That is, the slide plates 22A and 22B are provided with notches 32A and 32B cut out in the width direction Y of the band 5 at positions facing each other, and are formed by the opposed notches 32A and 32B. Coil springs (biasing members) 40 are arranged one by one in the space, and by these coil springs 40, the slide plates 22A and 22B are urged outward, that is, outward. In addition, you may make it use not only the coil spring 40 but other urging members, such as a leaf | plate spring.

  Further, the slide plates 22A and 22B are provided with a recessed portion 33 that is recessed in the thickness direction of the slide plates 22A and 22B. At the bottom of the recessed portion 33, the engaging portions 15A provided on the lower plate 13 are provided. A substantially rectangular opening 34 is formed with which 15B engages. Here, as shown in FIG. 4, the engaging portions 15 </ b> A and 15 </ b> B have a distal end portion 15 </ b> C (more specifically, an upper surface position α of the distal end portion 15 </ b> C) that is hooked on the bottom of the recessed portion 33 through the opening 34. The concave portion 33 is formed so as to be within the range β of the concave space.

  As shown in FIGS. 3 and 5, the pin hole portions 26 and 27 of the holding body 23 are partially cut and bent in the length direction of the band 20, and the cut and bent portions 26 </ b> A and 27 </ b> A serve as slide plates. The movement range and the movement bias in the width direction of the band 5 of 22A and 22B are regulated. Specifically, when the push buttons 12A and 12B are operated (pressing operation), the cut and bent portions 26A and 27A are connected to the slide plates 22A and 22B, both of which are simultaneously engaged with the engaging portions 15A and 15B. Move only to the position where you want to solve the match. This prevents a problem that only one side is disengaged and the other side remains engaged, that is, the latch 7 cannot be unlocked.

  Incidentally, as described above, the pair of slide plates 22A and 22B are biased in the direction of widening the interval by the coil spring 40, so that before the engaging portions 15A and 15B are engaged with the slide plates 22A and 22B. As shown schematically in FIG. 6, the positional relationship between the slide plate 22 </ b> A and the engaging portion 15 </ b> A is such that the engaging portion 15 </ b> A comes into contact with a portion γ that is not inserted through the opening 34. In the present embodiment, when the intermediate retainer 7 is to be locked, a portion γ with which the engaging portion 15 comes into contact is formed on the inclined surface 41, so that the slide plate 22A is moved by the contact force with the engaging portion 15A. The engaging portion 15 </ b> A can be retracted to a position where the engaging portion 15 </ b> A is inserted through the opening 34. The slide plate 22B is also formed with an inclined surface 41 similarly to the slide plate 22A. As a result, when the intermediate retainer 7 is locked, the engaging portions 15A and 15B can be reliably engaged with the openings 34 of the slide plates 22A and 22B.

Next, the operation of the embodiment will be described.
As shown in FIG. 2, when the middle retainer body 12 and the lower plate 13 are rotated in the direction of the middle plate 14 from the state where the middle retainer 7 is expanded, the inclined surface 41 of the opening 34 of the slide plate 22A is engaged. The slide plate 22A contacts the portion 15A and moves toward the other slide plate 22B against the urging force of the coil spring 40, and the inclined surface 41 of the opening 34 of the slide plate 22B contacts the engaging portion 15B. The slide plate 22B comes into contact with the biasing force of the coil spring 40 and moves toward the other slide plate 22A.
Then, when the slope 41 of the opening 34 of the slide plate 22A passes the tip of the engaging portion 15A, the slide plate 22A moves in the direction in which the coil spring 40 is urged and the engaging portion 15A becomes the edge of the opening 34. When the inclined surface 41 of the opening portion 34 of the slide plate 22B passes the tip of the engagement portion 15B, the slide plate 22B moves in the direction in which the coil spring 40 is urged to engage the engagement portion 15A. Engage with the edge of the opening 34. Thereby, the middle terminal 7 is locked in the closed state.

  When releasing the lock, as shown in FIG. 5, when the pair of push buttons 12A and 12B are pressed toward the inner side in the width direction of the band 5, slides formed integrally with the push buttons 12A and 12B, respectively. The plates 22A and 22B move in the direction of narrowing the interval, the engagement between the openings 34 and the engaging portions 15A and 15B is released, and the middle ring 7 is released. In this configuration, the lock is not released unless both the pair of push buttons 12A and 12B are operated at the same time. Therefore, even if a force that pushes down one of the push buttons 12A and 12B is applied during carrying, it is unexpected. Never come off.

In the present embodiment, a pair of slide plates 22A and 22B formed integrally with each of the pair of push buttons 12A and 12B are arranged with an interval in the width direction of the band 5, and the slide plates 22A and 22B are provided. By providing the pair of engaging portions 15A and 15B that engage with each other, it is possible to make the thickness thinner than that of a conventional middle end in which this kind of slide member is arranged in an overlapping manner. Moreover, the width | variety of the middle end 7 can be narrowed by arrange | positioning this pair of slide plates 22A and 22B close.
In particular, an opening 34 for engaging one of the engaging portions 15A and 15B is provided in the lower portion of the recessed portion 33 of the slide plates 22A and 22B, and the engaging portion 15A is engaged when engaged as shown in FIG. Since the tip 15C of the 15B is within the range β of the recessed space of the recessed portion 33, it is easy to make the middle ring 7 thinner.

  In the present embodiment, the pair of slide plates 22A and 22B have notches 32A and 32B that are notched in the width direction Y of the band 5 at facing positions, and the facing notches 32A and 32B. By arranging the coil spring 40 in the space formed by the above, it becomes easy to narrow the entire width of the middle ring 7 including the push buttons 12A and 12B.

  Furthermore, the middle end 7 of the present embodiment is configured by only the front cover 21, a pair of slide plates 22 </ b> A and 22 </ b> B, a holding body 23 formed by bending one plate member, a coil spring 40, and a connecting pin 30. Therefore, the number of parts is small, and creation of each part is easy. In particular, the projecting portions 26A and 26B that regulate the movement range of the slide plates 22A and 22B are formed by cutting and bending a part of the pin hole portions 26 and 27 of the holding body 23, so that the holding body 23 can be easily processed. A function of restricting the movement range of the slide plates 22A and 22B can be provided.

  The above-described embodiments merely show one aspect of the present invention, and can be arbitrarily modified within the scope of the present invention. In the above-described embodiment, the three-fold method (three-fold push method) has been described. However, the present invention is not limited to this, and it is needless to say that the above-described configuration can be applied to a double-fold (double-fold) method, a two-fold method, and the like. . In the above-described embodiment, the middle band of the wristwatch band has been described. However, the present invention can be widely applied to the middle band for fastening an accessory such as a bracelet.

It is a figure which shows the external appearance structure of the wristwatch which concerns on embodiment of this invention. It is a perspective view which shows the state which extended the middle dot of the wristwatch. It is a disassembled perspective view of a Nakadome main body. It is sectional drawing of the locking mechanism of Nakadome. It is a top view of the lock mechanism of Nakadome. It is a figure which shows typically the positional relationship of a slide member and an engaging part.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Wristwatch, 3 ... Watch body, 5 ... Band, 7 ... Nakadome, 12 ... Nakadome main body, 12A, 12B ... Push button, 13 ... Lower plate, 14 ... Middle plate, 15, 15A, 15B ... Engagement part 21 ... Front cover, 22A, 22B ... Slide plate (slide member), 23 ... Holding body (holding member), 33 ... Recessed portion, 34 ... Opening portion, 40 ... Coil spring (biasing member).

Claims (10)

It has a pair of push buttons provided so as to be able to be pressed in the width direction of the band, and includes a center pin main body provided on the band and a locking member that is locked to the main ring body. In the push type middle stopper that releases the lock,
The Nakadome main body is
A pair of slide members formed integrally with the push button and spaced apart in the width direction of the band;
An urging member that urges the pair of slide members in a direction in which the interval increases;
A holding member that holds the pair of slide members slidably in the width direction of the band,
The locking member is
The middle ring characterized by having a pair of engaging part with which a pair of said slide member each engages.   2. The intermediate retainer according to claim 1, wherein each of the slide members is provided with an opening portion with which the corresponding engagement portion is engaged. Each of the slide members is provided with a recess that is recessed in the thickness direction of the slide member, and the opening is provided at the bottom of the recess.
The engaging portion has a tip portion that is caught by the bottom portion of the recess portion through the opening portion, and when the engagement portion is engaged with the opening portion, the tip portion fits in a recessed space of the recess portion. The Nakadome of Claim 2 characterized by these. Each of the pair of slide members is provided at a position where a notch portion cut out in the width direction of the band is opposed to each other,
The middle stay according to any one of claims 1 to 3, wherein the urging member is disposed in a space formed by the opposed notches.   In the holding member, both ends of a metal plate member are bent, and pin hole portions through which a connecting pin for connecting the holding member to the cover of the middle terminal body is inserted are formed at both ends. The part is cut and bent in the length direction of the band, and the movement range of the pair of slide members in the width direction of the band is restricted. Nakadome listed in The watch body,
A band connected to both ends of the watch body;
A main body having a pair of push buttons provided at the other end of one of the bands and capable of being pressed in the width direction of the band and connected to the other end of the other band, or In a timepiece comprising: a push-type middle ring that is rotatably connected to the main body and includes a locking member that is engaged with the middle body.
The Nakadome main body is
A pair of slide members formed integrally with the push button and spaced apart in the width direction of the band;
An urging member that urges the pair of slide members in a direction in which the interval increases;
A holding member that holds the pair of slide members slidably in the width direction of the band,
The locking member is
A timepiece having a pair of engaging portions with which the pair of slide members are respectively engaged.   The timepiece according to claim 6, wherein each of the slide members is provided with an opening portion with which the corresponding engagement portion is engaged. Each of the slide members is provided with a recess that is recessed in the thickness direction of the slide member, and the opening is provided at the bottom of the recess.
The engaging portion has a tip portion that is caught by the bottom portion of the recess portion through the opening portion, and when the engagement portion is engaged with the opening portion, the tip portion fits in a recessed space of the recess portion. The timepiece according to claim 7. Each of the pair of slide members is provided at a position where a notch portion cut out in the width direction of the band is opposed to each other,
The timepiece according to claim 6, wherein the urging member is disposed in a space formed by the opposed notch portions.   In the holding member, both ends of a metal plate member are bent, and pin hole portions through which a connecting pin for connecting the holding member to the cover of the middle terminal body is inserted are formed at both ends. The part of the part is cut and bent in the length direction of the band, and the range of movement of the pair of slide members in the width direction of the band is restricted. The watch described in.

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