FR2967015A1 - Watch strap - Google Patents

Watch strap Download PDF

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Publication number
FR2967015A1
FR2967015A1 FR1059277A FR1059277A FR2967015A1 FR 2967015 A1 FR2967015 A1 FR 2967015A1 FR 1059277 A FR1059277 A FR 1059277A FR 1059277 A FR1059277 A FR 1059277A FR 2967015 A1 FR2967015 A1 FR 2967015A1
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FR
France
Prior art keywords
clasp
bracelet
locking
housing
slide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR1059277A
Other languages
French (fr)
Other versions
FR2967015B1 (en
Inventor
Samia Ferrad
Bris Pascal Le
Original Assignee
Samia Ferrad
Bris Pascal Le
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samia Ferrad, Bris Pascal Le filed Critical Samia Ferrad
Priority to FR1059277A priority Critical patent/FR2967015B1/en
Publication of FR2967015A1 publication Critical patent/FR2967015A1/en
Application granted granted Critical
Publication of FR2967015B1 publication Critical patent/FR2967015B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44CPERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18Fasteners for straps, chains or the like
    • A44C5/22Fasteners for straps, chains or the like for closed straps
    • A44C5/24Fasteners for straps, chains or the like for closed straps with folding devices
    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44CPERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18Fasteners for straps, chains or the like
    • A44C5/22Fasteners for straps, chains or the like for closed straps
    • A44C5/24Fasteners for straps, chains or the like for closed straps with folding devices
    • A44C5/246Fasteners for straps, chains or the like for closed straps with folding devices having size adjusting means

Abstract

Wristwatch whose clasp (1) is of the unfolding type, consisting of an articulated assembly of three elements (6, 7, 8), namely a lower clasp element (6), an intermediate clasp element (7) and an upper clasp element (8), characterized in that the clasp comprises means allowing the user to adjust the length of the wristband.

Description

WATCH STRAP
The present invention relates to an improved clasp for a wristwatch. It relates more particularly to a clasp for adjusting the length of the bracelet.
Depending on the altitude, physical activity or sport, under the effect of heat or cold, the wearing of a watch can be uncomfortable. Thus, the bracelet becomes too loose or too tight, unsuitable for the situation and the wrist of the wearer.
There already exist in the trade wristwatches whose clasp is of the folding type, but none of these clasps is satisfactory, since nothing allows a precise adjustment of the length of the wristband even less a setting the wristband being worn.
The present invention provides a clasp which by its system allows the user to increase or decrease the length of his bracelet, 20 through a fine adjustment, without having to remove his watch, without having to open the clasp .
Thus, the watch strap including the clasp of the unfolding type, consisting of an articulated assembly of three elements, namely a lower clasp element, an intermediate clasp element and an upper clasp element, is according to the invention, characterized in that the clasp comprises means allowing its user to adjust the length of the bracelet.
According to a complementary feature, the upper clasp element comprises adjustment means in longitudinal position of the corresponding end of the bracelet relative to the clasp.
According to other complementary features, one of the bracelet portions is fixed at its end to the lower clasp element while the other bracelet portion is fixed at its end to the upper clasp member, while upper clasp element, is in the form of a housing in which is mounted, movable in longitudinal displacement, a slide, and that the housing comprises means of longitudinal displacement, and locking means and unlocking the slide by relative to the case, for each of the selected length positions of the latter, the attachment of the bracelet portion being made to the slider.
Add that the housing comprises a succession of locking holes for cooperating with the corresponding movable locks of the slide, while the latter comprises two coaxial lateral latches, movable in transverse displacement, which are each biased in the locking position by an elastic system, such as a spring, while each of the latches protruding outwardly comprises a gripping and manipulating member, which allows the user to press in the direction of the general plane of symmetry on these members to push back each of the latches the slide out of the locking holes and proceed to unlock the slide relative to the housing and allow its movement. Once the locks disengaged from the corresponding locking hole the user can move the slide relative to the housing and thus choose another locking position, and thus change the length of the bracelet.
Note also that according to a complementary feature, in order to facilitate the engagement of the locks in one of the corresponding locking holes, the upper clasp element comprises, as we have previously indicated indexing means, allowing the user to feel and therefore to know if the locks are in front of one of the locking holes.
Note that these indexing means are constituted by an indexing piston biased by a spring, each of the pistons being intended to cooperate with one of the locking holes other than that intended to ensure the locking in the chosen position of the slide.
Furthermore, the bracelet of the invention is characterized in that the clasp can take two positions, namely, a folded retaining position of the watch, and an extended position allowing the anise in place or the withdrawal of the watch, while it comprises locking means in the folded position.
The invention also relates to the clasp itself. Other features and advantages of the invention will become apparent from the description which follows with reference to the accompanying drawings which are given by way of non-limiting examples.
Figures 1 to 6 illustrate a first embodiment of a clasp according to the invention, rather intended for a leather or plastic strap.
Figure 1 is a perspective view of the wristwatch with the clasp of the wristband in the deployed position.
Figure 2 is a perspective view of the wristwatch whose clasp is in the folded position.
Figure 3 is an exploded perspective view of the clasp. Figure 4 is a side view of the clasp.
FIG. 5 is a sectional view along A-A of FIG. 4.
Figure 6a is a sectional view along B-B of Figure 4 and 5.
Figure 6b is a sectional view along C-C of Figure 4.
Figures 7 to 12 illustrate a second embodiment of a clasp according to the invention, rather for a metal bracelet.
Figure 7 is a perspective view of the wristwatch whose clasp is in the deployed position. Figure 8 is a perspective view of the wristwatch whose clasp is in the folded position.
Figure 9 is an exploded perspective view of the clasp. Figure 10 is a side view of the clasp.
Fig. 1.1 is a sectional view along A-A of Fig. 10. Fig. 12 is a sectional view along B-B of Fig. 10 and 11.
Figure 13 is a detail view illustrating the setting teeth made by secant holes.
The clasp (1) according to the invention is a clasp for bracelet (2) watch (3). The bracelet may be of any type such as for example flexible plastic material, leather, as shown in Figures 1 and 2, or made by an assembly of a set of metal links, as shown in Figures 7 and 8.
In a manner known per se, the bracelet (2) consists of two bracelet portions (4, 5), and each of the portions is such that one end is connected to the case of the watch (3) while the other is intended to receive one of the elements of the clasp (1). The clasp (1) of the invention is a folding clasp consisting of an articulated assembly of three elements (6, 7, 8). Namely a lower clasp member (6), an intermediate clasp member (7) and an upper clasp member (8). The intermediate clasp element (7) is, by one of its two ends (70), pivotally mounted on the lower clasp element (6) about a transverse axis (9), while by the other at both ends (71), it is pivotally mounted on the upper clasp member (8) about a transverse axis (10).
The folding clasp (1) with its intermediate element (7) can take two positions, namely a folded retaining position of the watch as illustrated in FIGS. 2, 4, 5, and 6, and FIGS. 11, and 12, and an extended position for setting or removing the watch as shown in FIGS. 1 and 7.
Each of the elements of the clasp is in the general form of an elongated thin plate having substantially the width of the bracelet, and preferably curved to fit the shape of the wrist of the wearer.
One of the bracelet portions (4) is fixed at its end (11) to the lower clasp member (6) while the other wrist portion (5) is fixed at its end (12) to the upper clasp element (8).
As mentioned above, the clasp of the invention allows the user to increase or decrease the length of his bracelet, thanks to a fine adjustment, without having to remove his watch, and without having to open the clasp.
For this purpose, the upper clasp element (8) comprises length adjustment means, and more precisely adjustment means in longitudinal position of the corresponding end (12) of the bracelet relative to the clasp (1), and more particularly with respect to the upper element of the clasp (8).
Thus the upper clasp member (8) is in the form of a housing (13) in which is mounted, movable in longitudinal displacement, a slider (14). Longitudinal displacement is understood to mean a movement in translation along the general axis (X, X ') of the bracelet (2).
Add that the end (12) of the band portion (5) is fixed on the slide (1.4), with a transverse retaining axis (36). Thus at each of the longitudinal positions of the slide corresponds a peripheral length of the bracelet.
The upper clasp element (8) comprises longitudinal displacement means and locking and unlocking means of the slider (14) relative to the housing (13), for each of the selected length positions of the latter.
The longitudinal displacement means of the slider (14) are such that the housing (13) constituting the upper clasp element comprises a sliding housing (17) open downwards in which the slider (14) can move. . For this purpose the sliding housing (17) is limited laterally by two side walls (18a, 18b), and towards the axis of pivoting (71) by a front wall (19) in which is also retained this axis of pivoting.
Note that the width of the sliding housing (17) is slightly greater than the width of the slide, to allow longitudinal displacement.
The locking means of the chosen longitudinal position of the slider in the housing are made by cooperation of at least one movable latch (15a, 15b) with one of the corresponding locking recesses (16a, 16b).
According to the preferred embodiment illustrated, each of the mobile locks (15a, 15b) is mounted transversely movable on the slider (14), while the locking recesses (16a, 16b) are formed on the housing (13). Each of the side walls (18a, 18b) of the housing (13) comprises a succession of latch holes (16a, 16b) for cooperating with the corresponding movable latches (15a, 15b) of the slider (14).
According to the preferred embodiment these locking holes (16a, 16b) are arranged so as to be secant, as it appears more particularly in FIG. 13.
Note that according to the preferred embodiment of the invention, the slide (14) comprises two lateral latches (15a, 15b) coaxial, movable in transverse displacement, which are each biased in the locking position by an elastic system, such as a spring (20).
Each of the bolts (15a, 15b) is in the general form of a cylindrical rod which is guided in a transverse hole (21a, 21b) formed in the slide (14).
One will note that the diameter of the end of each of the locks (15a, 15b) has a diameter allowing its engagement in one of the selected corresponding locking holes (16a, 16b). Each of the latches (15a, 15b) is thus biased transversely outwards (EXT), by its spring (20), relative to the axis (X, X ') of displacement of the slide (14), which makes it allows to cooperate in positive locking position with one of the locking holes (16a, 16b).
Note that the end of each of the latches protruding outwards (EXT) comprises a gripping and manipulating member (22a, 22b), which allows the user, by pressing in the direction of the general plane of symmetry ( P) on these members, to push each of the locks (15a, 15b) of the slide out of the locking holes and proceed to unlock the slide relative to the housing, thus allowing its displacement. Once the latches (15a, 15b) disengaged from the corresponding locking hole, the user can move the slide (14) relative to the housing (13), choose another locking position, and thus change the length of the bracelet.
In order to facilitate the engagement of the latches (15a, 15b) in one of the corresponding locking holes (16a, 16b), the upper clasp element comprises, as we have previously indicated, indexing means, allowing to the user to feel and therefore to know if the locks are in front of one of the locking holes. For this purpose the indexing means are constituted by an indexing piston (23a, 23b) biased by a spring (24a, 24b). Each of the pistons being intended to cooperate with one of the locking holes (16a, 16b) other than that intended to ensure the locking in the chosen position of the slide (14).
It should be noted that the lower clasp element (6) has the general shape of a "U" shaped stirrup, so that its central portion comprises a central recess (34) for receiving the intermediate clasp element (7). which is in the form of an elongated strip, which is thus embedded in the position of the folded clasp in the central housing (34).
Add that the clasp (1) is locked in the folded position as shown in Figures 2, 4, 5, and 6, and Figures 8, 10, 11, and 12, with locking means in the folded position
These means can be of several types. Namely: a first type such as that illustrated in Figures 1 and 3, more particularly for a leather strap, and a second type such as that illustrated in Figures 9, 11 and 12, more particularly for a metal bracelet .
According to the first type of retaining means in the folded position of the clasp as illustrated in FIGS. 1 and 3, these are constituted by lateral projections (30) formed on the external lateral walls of the intermediate element (7) intended to cooperate with corresponding housings (31) made on the inner side walls of the housing (34) of the lower member (6) of the clasp (1). The protrusions (30) are, for example, ceramic or other spring-loaded balls all of which are crimped in an impacted socket.
According to the second type of retaining means in the folded position of the clasp, as illustrated in Figures 9, 11 and 12, they are constituted by two attachment parts (33a, 33b) biased by springs (50). These two attachment pieces comprise a toothing intended to hook on a projection (35a, 35b) made and extending into the central housing (34) of the lower clasp member.
Note that in the case of a leather or plastic strap, the retention of the end (71) of the bracelet portion (4) is achieved by a pin (37), integral with the lower element clasp, engaged in one of the holes (38) of the corresponding bracelet portion (4).
It should be added that, in the case of a metal bracelet, the retention of the end (11) of the bracelet portion (4) is achieved by means of a retaining pin (40) engaged, on the one hand, in a hole (41) made in the lower clasp member, and secondly, in a transverse hole in the end (11) of the corresponding bracelet portion (4).
It has been understood that, thanks to the device of the invention, the user will be able to accurately adapt the peripheral dimension of his bracelet to the size of his wrist, even if the bracelet is worn closed. It goes without saying that either of the clasps can be used with either a metal strap or with a plastic strap, leather or other.

Claims (9)

  1. REVENDICATIONS1. Wristwatch whose clasp (1) is of the unfolding type, consisting of an articulated assembly of three elements (6, 7, 8), namely a lower clasp element (6), an intermediate clasp element (7) and an upper clasp element (8), characterized in that the clasp comprises means allowing the user to adjust the length of the wristband.
  2. 2. Bracelet (2) according to the preceding claim, characterized in that the upper element (8) clasp (1) comprises adjustment means in longitudinal position of the corresponding end (12) of the bracelet relative to the clasp ( 1).
  3. 3. Bracelet (2) according to the preceding claim, characterized in that one of the bracelet portions (4) is fixed at its end (11) to the lower clasp element (6), while the other portion bracelet (5) is fixed at its end (12) to the upper clasp element (8), while the upper clasp element (8) is in the form of a housing (13). in which is mounted, movable in longitudinal displacement, a slider (14), and that the housing comprises longitudinal displacement means, and locking and unlocking means of the slider (14) relative to the housing (13), for each selected length positions of the latter, fixing the strap portion (5) to the slider (14).
  4. 4. Bracelet (2) according to the preceding claim, characterized in that the housing (13) comprises a succession of locking holes (16a, 16b) for cooperating with the corresponding movable locks (15a, 15b) of the slide (14). . 2967015] 3
  5. 5. Bracelet (2) according to the preceding claim, characterized in that the slide (14) comprises two lateral latches (15a, 15b) coaxial, movable in transverse displacement, which are each biased in the locking position by an elastic system, such as a spring (20), while each of the outwardly projecting latches (EXT) comprises a gripping and manipulating member (22a, 22b), which allows the user to press in the direction of the plane of general symmetry (P) on these members to push each of the locks (15a, 15b) of the slider out of the locking holes and proceed to unlock the slider relative to the housing and thus allow its displacement. Once the locks (15a, 15b) disengaged from the corresponding locking hole the user can move the slide (14) relative to the housing (13), choose another locking position, and thus change the length of the bracelet. 15
  6. 6. Bracelet (2) according to any one of the preceding claims, characterized in that to facilitate the engagement of the latches (15a, 15b) in one of the corresponding locking holes (16a, 16b), the The upper clasp element comprises, as previously mentioned, indexing means, allowing the user to feel and thus to know if the locks are in front of one of the locking holes.
  7. 7. Bracelet (2) according to the preceding claim, characterized in that the indexing means are constituted by an indexing piston (23a, 23b) 25 biased by a spring (24a, 24b), each of the pistons being intended for cooperate with one of the locking holes (16a, 16b) other than that intended to ensure the locking in the chosen position of the slide (14).
  8. 8. Bracelet (2) according to any one of the preceding claims, characterized in that the clasp (1) can take two positions, namely a folded retaining position of the watch, and an extended position allowing the introduction or the withdrawal of the watch, while it comprises locking means in the folded position.
  9. 9. Clasp (1) for watch strap (2) (3) according to any one of the preceding claims.
FR1059277A 2010-11-10 2010-11-10 Watch strap Expired - Fee Related FR2967015B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1059277A FR2967015B1 (en) 2010-11-10 2010-11-10 Watch strap

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1059277A FR2967015B1 (en) 2010-11-10 2010-11-10 Watch strap
EP11188596.8A EP2452583B1 (en) 2010-11-10 2011-11-10 Watch strap

Publications (2)

Publication Number Publication Date
FR2967015A1 true FR2967015A1 (en) 2012-05-11
FR2967015B1 FR2967015B1 (en) 2013-09-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR1059277A Expired - Fee Related FR2967015B1 (en) 2010-11-10 2010-11-10 Watch strap

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EP (1) EP2452583B1 (en)
FR (1) FR2967015B1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2981185B1 (en) * 2013-04-04 2017-05-31 Roland Iten Mechanical Luxury SA Buckle for a belt or strap such as a watch strap
EP2868222B1 (en) 2013-11-01 2016-09-14 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
US9560900B2 (en) 2014-06-23 2017-02-07 Mauricio Pier Adjustable watch strap
EP3170420B1 (en) 2015-11-20 2020-01-01 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
EP3210488B1 (en) 2016-02-25 2018-09-26 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
CN110769716A (en) 2017-06-21 2020-02-07 迪克赛尔股份公司 Bracelet clasp with means for adjusting the length of the bracelet
EP3417734B1 (en) 2017-06-21 2021-04-28 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
EP3417735A1 (en) 2017-06-21 2018-12-26 Dexel S.A. Bracelet clasp comprising a device for adjusting the length of the bracelet
CH716147A1 (en) * 2019-05-03 2020-11-13 Benjamin Lavizzari Folding clasp.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1985835A (en) * 1932-02-16 1934-12-25 Gemex Co Extensible buckle
CH668353A5 (en) * 1986-11-17 1988-12-30 Erbas S A Extensible fastener for bracelet or watch - has two folding segments with bracelets end joined to plate sliding in cover and hooks engaging in hole in segment
JP2000279217A (en) * 1999-03-31 2000-10-10 Citizen Watch Co Ltd Length regulating mechanism
CH694843A5 (en) * 2001-03-01 2005-08-15 Richemont Int Sa Watch straps length adjusting device, has link with two push buttons whose free ends comprise small dimension turning to slide in narrow part of slot and large dimension turning to cooperate with larger parts of slot
US20090049667A1 (en) * 2007-08-20 2009-02-26 Casio Computer Co., Ltd. Buckle for band and object wearing device using the buckle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1985835A (en) * 1932-02-16 1934-12-25 Gemex Co Extensible buckle
CH668353A5 (en) * 1986-11-17 1988-12-30 Erbas S A Extensible fastener for bracelet or watch - has two folding segments with bracelets end joined to plate sliding in cover and hooks engaging in hole in segment
JP2000279217A (en) * 1999-03-31 2000-10-10 Citizen Watch Co Ltd Length regulating mechanism
CH694843A5 (en) * 2001-03-01 2005-08-15 Richemont Int Sa Watch straps length adjusting device, has link with two push buttons whose free ends comprise small dimension turning to slide in narrow part of slot and large dimension turning to cooperate with larger parts of slot
US20090049667A1 (en) * 2007-08-20 2009-02-26 Casio Computer Co., Ltd. Buckle for band and object wearing device using the buckle

Also Published As

Publication number Publication date
EP2452583B1 (en) 2017-02-15
EP2452583A1 (en) 2012-05-16
FR2967015B1 (en) 2013-09-27

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