EP3893688A1 - Device for finely adjusting the length of a band and band comprising at least one device of this type - Google Patents

Device for finely adjusting the length of a band and band comprising at least one device of this type

Info

Publication number
EP3893688A1
EP3893688A1 EP19831914.7A EP19831914A EP3893688A1 EP 3893688 A1 EP3893688 A1 EP 3893688A1 EP 19831914 A EP19831914 A EP 19831914A EP 3893688 A1 EP3893688 A1 EP 3893688A1
Authority
EP
European Patent Office
Prior art keywords
bracelet
fine adjustment
adjustment device
external part
lever
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.)
Pending
Application number
EP19831914.7A
Other languages
German (de)
French (fr)
Inventor
Eric Le Gall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Patek Philippe SA Geneve
Original Assignee
Patek Philippe SA Geneve
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 Patek Philippe SA Geneve filed Critical Patek Philippe SA Geneve
Publication of EP3893688A1 publication Critical patent/EP3893688A1/en
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/02—Link constructions
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00—Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18—Fasteners for straps, chains or the like
    • A44C5/22—Fasteners for straps, chains or the like for closed straps
    • A44C5/24—Fasteners for straps, chains or the like for closed straps with folding devices
    • A44C5/246—Fasteners for straps, chains or the like for closed straps with folding devices having size adjusting means

Definitions

  • the latter relates to a device for fine adjustment of the length of a bracelet, the device being intended to be inserted between two elements of the bracelet and comprising an external part arranged to be attached to the one of the two elements, an internal part arranged to be attached to the other element of the bracelet and to slide in the external part parallel to the longitudinal direction of the bracelet so as to vary the length of the bracelet, and stop means arranged to limit the stroke of the internal part relative to the external part so that the bracelet cannot extend beyond a maximum length, the external part further comprising a wall having at least one immobilization hole on its inner side, and the internal part comprising hooking means and a spring arranged to cause the hooking means to engage in said at least one hole, so as to pe resetting to immobilize the internal part with respect to the external part in at least one relative position giving the bracelet a determined length.
  • the present invention relates in particular to such a fine adjustment device intended to be inserted between two elements of a watch strap, and it relates in particular to such a fine adjustment device intended to form part of a bracelet provided with a clasp.
  • deploying type comprising at least one opening and closing cover.
  • the present invention relates to a bracelet comprising at least one device for fine adjustment of its length.
  • Patent CH 699 067 B1 describes a fine adjustment device for a bracelet provided with a deployant-type clasp comprising at least one opening and closing cover comprising an upper face and two lateral faces which are symmetrical with respect to one another to each other and each have two holes.
  • the opening and closing cover of the clasp is simultaneously part of the clasp and of the fine adjustment device, and the latter also comprises a base support arranged to be slidably housed inside the opening and closing cover. .
  • the base support comprises fixing means arranged to cooperate selectively with one of the two bores that each of the side faces has.
  • the fixing means comprise a bar which is used to attach a strand of the bracelet to the base support and the two ends of which are each provided with a ball pawl.
  • the bar is mounted in the base support so that the two balls protrude on either side by openings arranged in the sides of the latter.
  • the base support is housed in the opening and closing cover so as to slide between the two lateral faces, it will be understood that the balls of the two pawls are constantly pushed by their respective spring towards the interior sides of the two faces side of the cover.
  • Patent document EP 2 875 747 A1 proposes to remedy this problem. It describes a device for fine adjustment of the length of a bracelet which conforms to the definition given in the preamble.
  • the external part of this device comprises a rack arranged inside its upper face, and the internal part comprises hooking means in the form of a pawl, as well as a spring arranged to return the pawl against the rack. .
  • the rack teeth are asymmetrical.
  • the internal part is then free to slide in a direction corresponding to a shortening of the bracelet.
  • the bracelet wearer exerts a force on the bracelet strand in the direction corresponding to the lengthening of the bracelet, this force has no effect.
  • the pawl then ensures the locking between the internal part and the external part by cooperating with the other side of one of the asymmetrical teeth of the rack. It will be understood that the characteristic which has just been described is not always advantageous. Indeed, if the wearer of a bracelet equipped with this fine adjustment device is not precise enough in his manipulations, he risks too shortening the bracelet and then having to open the clasp to loosen it.
  • An object of the present invention is to remedy the drawbacks of the prior art which have just been explained.
  • the present invention achieves this goal as well as others by providing a device for fine adjustment of the length of a bracelet according to claim 1 appended.
  • the expression "longitudinal axis" (of the device for fine adjustment of the length of a bracelet) designates an axis of said device, which coincides with the longitudinal axis of the bracelet when the device is inserted. between two elements of it.
  • certain parts of the said device can be described as “upper” and “lower” with reference respectively to the external and internal sides of the bracelet.
  • the internal part comprises a slide and a lever arranged pivoting in a housing of the slide, the lever forming part of the hooking means and having a first end which is arranged to be returned by the spring in the direction of the wall of the external part, so as to allow the lever to cooperate with said at least one immobilization hole to secure the internal part relative to the external part in at least one position giving the bracelet a determined length less than the maximum length, and in that the internal part comprises a control member arranged to allow manual control of the lever to spread the first end of the immobilization hole in which it is inserted, so as to separate the internal part from the external part.
  • the external part comprises at least one immobilization hole, but that it is not equipped with a rack.
  • the internal part and the external part are integral with each other as long as the lever cooperates with the immobilization hole.
  • To separate the internal part from the external part it is necessary to manually actuate the control member so as to separate the folded end of the lever from the immobilization hole.
  • a first advantage of the invention is therefore that an accidental impact or an energetic bending of the wrist does not risk causing an involuntary elongation of the bracelet.
  • a second advantage is that the watch wearer cannot change the length of the strap when the latter is closed. There is therefore no risk of having to reopen it because it has been tightened too much.
  • the wall of the external part has an upper face in which said at least one immobilization hole is formed.
  • the lever is arranged to pivot in a plane which is normal to the upper face and which contains the longitudinal axis of the bracelet.
  • the internal part comprises an auxiliary stop arranged to cooperate with an edge of the external part so as to limit the stroke of the internal part relative to the external part so that the length of the bracelet cannot be less than the minimum length, and according to an advantageous variant of this latter embodiment, the minimum length is equal to the determined length.
  • the auxiliary stop acts in concert with the lever and the immobilization hole to immobilize the internal part relative to the external part in a relative position giving the bracelet a minimum length.
  • the slide has two holes arranged on either side and facing one another, and the auxiliary stop comprises at least one fixing arm provided with a through hole which is arranged coaxially between the two holes.
  • the auxiliary stopper is fixed to the slide using a pin which is oriented perpendicular to the length of the bracelet and which is inserted through the through hole and the two holes. It will be understood that the auxiliary stop must be able to be separated from the rest of the internal part so as to allow the fine adjustment device to be dismantled.
  • the pin preferably also fulfills the function of a pivot axis for the lever.
  • An advantage of this latter variant is that it further simplifies the task of assembling or disassembling the fine adjustment device.
  • the lever is arranged to pivot around an axis perpendicular to the longitudinal axis of the bracelet.
  • FIGS. 1A and 1B are perspective views of the outside of a bracelet fitted with a butterfly folding clasp and of a pair of fine adjustment devices in accordance with a first embodiment of the invention, the FIGS. 1A and 1B respectively showing the fine adjustment devices in a short configuration and in a long configuration of the bracelet;
  • FIGS. 2A and 2B are perspective views of the interior side of the bracelet of FIGS. 1A and 1B, and which represent the buckle of the clasp of the bracelet in the deployed configuration, FIGS. 2A and 2B respectively showing the fine adjustment devices in a short configuration and in a long configuration of the bracelet;
  • Figures 3A and 3B are perspective views from below respectively showing the cover and the slide of one of the fine adjustment devices of Figures 1A, 1B, 2A and 2B;
  • Figures 4A and 4B are cutaway perspective views of one of the fine adjustment devices of Figures 1A, 1B, 2A and 2B, the outer layer of the upper face of the cover having been omitted, and Figures 4A and 4B showing respectively the fine adjustment device in a short configuration and a long configuration of the bracelet;
  • Figures 5A and 5B are two cross-sectional views of one of the two fine adjustment devices of the bracelet of Figures 1A, 1B, 2A and 2B, the cut being made at the level of the pivot plane of the lever, and Figures 5A and 5B showing the first end of the lever respectively engaged in, and separated from, the immobilization hole;
  • Figure 5C is a cross-sectional view similar to that of Figures 5A and 5B; FIG. 5C showing the first end of the lever engaged in the auxiliary hole;
  • Figure 6 is a cross-sectional view along the plane C-C of Figure 5A;
  • Figure 7 is a cross-sectional view along the plane A-A of Figure 6;
  • Figures 8A and 8B are two cross-sectional views along the plane B-B of Figure 6; FIGS. 8A and 8B respectively showing the fine adjustment device in a short configuration and in a long configuration of the bracelet;
  • FIGS. 9A, 9B and 9C are three cross-section views of a fine adjustment device according to a second embodiment of the invention, the section being made at the level of the pivot plane of the lever, and FIGS. 9A, 9B and 9C respectively showing the fine adjustment device in a short configuration, a medium configuration, and a long configuration of the bracelet;
  • FIGS. 10A and 10B are perspective views similar to those of FIGS. 1A and 1B on the outside of a bracelet, the bracelet being of a different model, and the two fine adjustment devices being in accordance with a variant of the first embodiment of the invention.
  • FIGS. 1A, 1B, 2A and 2B are perspective views of a bracelet 1 equipped with a clasp 3 with a butterfly folding clasp.
  • the clasp 3 is shown in the closed position in Figures 1A and 1B and in the open position in Figures 2A and 2B. It comprises, conventionally, two symmetrical pivoting blades articulated on a base blade, two opening and closing half-covers (referenced respectively 5 and 7) pivotally mounted on the ends of the two pivoting blades, and a safety lock which can be actuated by means of two pushers (referenced 9).
  • the two half-covers 5, 7 are arranged to come to position face-to-face, one against the other, when the bracelet is closed.
  • closing edge 19a (or respectively 19b) will be called the edge, of one or other of the half-covers, which faces the closing edge of the other half-cover in FIGS. 1A and 1 B.
  • Folding type clasps are well known to those skilled in the art. This is the reason why the clasp 3 of the present example will not be described in more detail.
  • An example of a folding clasp safety clasp is described in patent document EP 3 162 241 A1. This document is incorporated by reference into the present description.
  • the two half-covers 5 and 7 are also attached respectively to two strands 11, 13 of the bracelet by means of a first and a second fine adjustment device (referenced respectively 15 and 17) which are both in accordance with a first embodiment of the invention.
  • the two fine adjustment devices can be identical and, in accordance with what will be described in more detail below, their presence makes it possible to adjust the length of the bracelet 1 between a base length (short) and a comfortable putting length. (longer).
  • Figures 1A and 2A show the bracelet with the two fine adjustment devices 15, 17 in the configuration associated with the base length of the bracelet, while Figures 1 B and 2B show it with the two devices in the configuration associated with its comfortable putting length.
  • the dimensions of the fine adjustment devices 15 and 17 are substantially the same as those of the links of bracelet 1. This uniformity of dimensions makes it possible to produce bracelets formed of homogeneous elements , and therefore also homogeneous bracelets.
  • Figures 3A to 8B are views which show in more detail one of the two fine adjustment devices 15 and 17 of the bracelet 1 of Figures 1A, 1B, 2A and 2B.
  • the fine adjustment device comprises an external part and an internal part which is arranged to slide in the external part, parallel to the longitudinal direction of the bracelet.
  • the two opening and closing half-covers 5, 7 of the clasp 3 each fulfill the function of external part for the fine adjustment device (respectively 15 and 17) with which they are associated.
  • the internal part of the fine adjustment device shown comprises a slide 20 comprising a housing 21, and further comprises a lever 23 (shown in FIGS.
  • FIG. 3A is a perspective view from below of the external part 5.
  • the external part generally has an inverted "U" profile, its cross section being substantially uniform.
  • the base of the inverted U is constituted by the upper face 29 of the half-cover and the two uprights are constituted by two opposite lateral faces 31 a and 31 b.
  • the inner side of the upper face 29 of the half-cover 5 has an extra thickness in which a number of hollow structures have been formed. Among these, we can first see a cell 33a having an elongated shape in the longitudinal direction of the bracelet.
  • One of the elongated ends of the cell 33a is a closed end constituting a bottom, while the opposite end is open and opens to the outside through the closing edge 19a. It can also be seen that the cell 33a adjoins the inner side of the side face 31a of the half-cover, and that it even extends over a short distance under the side face so as to form at the base of the latter. a lateral guide groove. According to this example, the half-cover 5 is symmetrical. It will therefore be understood that the inner side of the upper face 29 also has a second cell 33b (visible in particular in FIGS. 4A and 4B) of elongated shape which adjoins the lateral face 31b, so that it is not visible in Figure 3A. FIG.
  • FIG. 3A also shows a first blind hole 37 hereinafter called “immobilization hole 37” and a second smaller blind hole 39, hereinafter called “auxiliary hole 39” which are formed in the inner side of the face upper 29, the holes 37 and 39 having an elongated shape transverse to the longitudinal direction of the bracelet. It can also be seen that the upper face of the cover 5 also has a rectangular notch 59 which is arranged in the edge opposite the closing edge 19a.
  • FIG. 3B is a perspective view from below of the slide 20 of the internal part of the fine adjustment device. It can be seen that the slider has a main part dimensioned so as to be able to be inserted between the two lateral faces 31 a, 31 b of the external part, and a narrower connecting part (referenced 60). It can also be seen that the slide 20 is symmetrical with respect to a plane of symmetry which is parallel to the longitudinal axis of the bracelet, and that a housing 21, which is arranged in the center of the slide, opens on the lower side of this last. Still referring to the same figure, it can be seen that the edge of the main part of the slide 20 also has a central notch 51 which is arranged in the extension of the housing 21.
  • the notch 51 is crossed in its middle by the plane of symmetry of the slide 20. As will be seen in more detail below, the notch 51 constitutes an opening intended to allow the passage of the first end 27 of the lever 23. It can also be seen that the main part of the slide comprises two holes 41 a, 41 b arranged coaxially on either side of the housing 21, and that the connecting part 60 has a transverse hole 61 which extends parallel to the axis common to the holes 41 a and 41 b. Finally, the slide 20 also has two lateral pads 35a and 35b arranged respectively to slide inside the cells 33a and 33b of the external part.
  • the lateral pads 35a, 35b are introduced by their rounded end into the open ends of the cells 33a, 33b.
  • the slide 20 is held laterally and vertically inside the external part by the cells.
  • the slider is however free to slide parallel to the longitudinal direction of the bracelet.
  • the shape of the rounded ends of the pads 35a and 35b is complementary to the shape of the bottom of the cells 33a, 33b so that the bottom of each cell constitutes a stop intended for stopping the slider 20.
  • the stops provided for stopping the slider 20 are not attachments, but rather come from material with the half-cover 5.
  • the pads 35a, 35b are not attachments. They indeed come in one piece with the slide 20. It will be understood that these characteristics contribute to increasing the robustness of the device and that they thus make it safer.
  • FIGS. 4A and 4B are perspective views of the fine adjustment device of the present example.
  • the figures show the device in two configurations associated respectively with the basic lengths and with making the bracelet comfortable. Note that the views of Figures 4A and 4B are cut away. Indeed, in order to facilitate the understanding of the operation of the device, we has not shown the outer side of the upper face 29 of the cover. This omission makes it possible to make visible the structures formed in hollow in the interior side of the upper face.
  • Figures 5A, 5B and 5C are three cross-sectional views of one of the two fine adjustment devices of the bracelet of Figures 1 A, 1 B, 2A and 2B, the section being taken along the plane AA of Figures 4A and 4B.
  • the first end 27 of the lever 23 is bent and it is arranged to cooperate selectively with the immobilization hole 37 or the auxiliary hole 39 so as to allow to immobilize the internal part of the fine adjustment device, relative to its external part, in one or the other of two relative positions associated respectively with the base length of the bracelet and with its ease of use length .
  • the internal part further comprises a control member arranged to allow manual control of the lever 23 to move the first end 27 away from the immobilization hole, so as to separate the internal part of the external part of the fine adjustment device.
  • the lever 23 has two ends opposite one another. The first of these ends is the curved end 27, and the second of these ends is a planar end 53.
  • the latter is arranged to serve as a manually operable control member, so that a user can pivot the lever 23 by pressing on the flat end 53 so as to constrain the spring 25 (FIG. 7) and to release the curved end 27 from the immobilization hole 37 or from the auxiliary hole 39.
  • the spring 25 suddenly folds the end 27 of the lever 23 in the immobilization hole 37, so that there is an audible "click” capable of warning the user that the lever has returned to the initial position as illustrated in FIG. 5A.
  • the wall of the auxiliary hole 39 is inclined so as to allow the end 27 of the lever 23 to be retained inside the auxiliary hole 39 when a possible force acting on the bracelet strand which is integral with the internal part would be able to push the latter deeper into the external part, so that the bracelet would be shortened.
  • the shape of the auxiliary hole according to this variant makes it possible to avoid any risk of involuntary shortening.
  • Figure 6 is a cross-sectional view along the plane BB of Figure 4B.
  • the axis around which the lever 23 is arranged to pivot is formed by the assembly of a pin 45 and of a notched reduction tube 47.
  • the reduction tube is driven into the bore 41 b of the slide 20, and the notched pin 45 is arranged so as to pass through the slide right through. It thus extends transversely through the bore 41 a, the housing 21 and the reduction tube 47 which is driven into the bore 41 b.
  • the head of the notched pin 45 is housed in the bore 41 a, and on the other side, the opposite end of the pin is retained inside the notched tube 47.
  • the pin 45 successively passes through a first of two helical portions of the spring 25, then a bore 43 through the lever 23, and then again the other helical portion of the spring 25.
  • the curved end 27 of the lever 23 is arranged to selectively cooperate with the immobilization hole 37 or the auxiliary hole 39 so as to allow the internal part to be immobilized relative to the external part in one or the other of two relative positions associated respectively with the base length of the bracelet and with its comfortable length.
  • Figure 7 is a cross-sectional view along the plane DD of Figure 6. Figures 6 and 7 show in particular the spring 25 of the fine adjustment device.
  • the lever 23 and the spring 25 are arranged in the housing of the slide 20.
  • the lever 23 is mounted on an axis constituted by the notched pin 45 and that 'It also has two lateral supports 49a, 49b which are arranged in parallel on either side of the lever itself.
  • the spring 25 has two helical portions spaced from each other by a distance which corresponds substantially to the width of the central part of the lever 23, and which are also crossed by the notched pin 45. The two helical portions of the spring 25 are connected to each other by a bent intermediate portion (not visible) which draws a "U" shape.
  • the spring 25 also comprises two straight end portions which extend parallel to one another and transversely to the axis of the helical portions. Still referring to FIGS. 6 and 7, it can be understood that the spring 25 is mounted so as to overlap the lever 23, its two end portions being respectively wedged on the two lateral supports 49a, 49b. It will also be understood that, when the spring 25 is mounted on the lever 23, its intermediate portion in the shape of a "U" is arranged to come into abutment against the interior side of a wall portion constituting the upper face of the slide 20.
  • Figures 8A and 8B are two cross-sectional views along the plane EE of Figure 6, and which show the fine adjustment device in two configurations associated respectively with the base length and the length of putting the bracelet in comfort .
  • Figures 8A and 8B also show the end link 63 of the bracelet strand 1 1 (FIGS. 1A, 1 B, 2A and 2B), and it can also be seen that the slide 20 of the fine adjustment device and the end link 63 are articulated l 'one over the other.
  • the slide 20 has a main part arranged to be inserted between the two lateral faces 31 a, 31 b of the external part (FIG. 6), and a narrower connecting part (referenced 60).
  • the articulation between the end link 63 and the slide 20 is produced in a conventional manner by means of a pin 65 and a tube (not shown) which are inserted in a transverse bore 61 which has the connecting part 60 of the slide
  • the internal part still has an auxiliary stop.
  • the auxiliary stop is essentially formed by a rectangular plate 55 whose thickness is close to that of the upper face 29 of the external part, and by two fixing arms 57a, 57b (FIG. 6) arranged perpendicular to the plate and each having a through hole.
  • the rectangular plate 55 is placed on the upper face of the slide 20 and the two fixing arms 57a, 57b enter the housing 21 through an opening in the upper face of the slide 20. It can be seen in FIG.
  • the ends of the fixing arms are each housed in a space existing between one of the helical portions of the spring 25 and one of the two side walls of the housing 21.
  • the pin 45 passes through the two through holes, so that the auxiliary stop 55 is held in place on the slide thanks to the pin and the two fixing arms 57a, 57b.
  • the width of the notch 59 on the upper face 29 of the external part is adapted to allow the rectangular plate 55 constituting the auxiliary stop to be received .
  • the external part of the fine adjustment device is articulated on one of the pivoting blades of the clasp, while the internal part of the device is, for its part, attached by its connecting part 60 to a strand of the bracelet.
  • the length of the bracelet 1 decreases when the internal part is slid in the external part in the direction of the closing edge 19a, and that conversely, the length of the bracelet increases when the internal part of the fine adjustment device is slid in the other direction.
  • the travel of the internal part inside the external part is limited in both directions. As shown in FIG.
  • the position occupied by the internal part relative to the external part when the rounded ends of the two pads 35a and 35b abut against the bottom of the cells 33a, 33b corresponds to the configuration of the fine adjustment device for which the length of bracelet 1 is maximum.
  • the position occupied by the internal part relative to the external part when the edge of the rectangular plate 55 abuts against the bottom of the notch 59 corresponds to the configuration of the fine adjustment device in which the length of the bracelet is minimum.
  • the rectangular plate 55 is in abutment against the bottom of the notch 59 when the curved end 27 of the lever 23 is engaged in the immobilization hole 37. It will also be understood, by referring simultaneously in FIGS. 4B and 5C, that the two pads 35a and 35b are in abutment against the bottom of the cells 33a, 33b when the curved end 27 of the lever 23 is engaged in the auxiliary hole 39. It can therefore be understood that, in accordance with the first exemplary embodiment of the invention, the base length of the bracelet corresponds to its minimum length, and that the comfortable length corresponds to the maximum length of the bracelet. According to this example, the adjustment device therefore has only two stable configurations associated respectively with two different lengths of bracelet.
  • Figures 9A, 9B and 9C are three cross-sectional views of a fine adjustment device according to a second embodiment of the invention.
  • This second embodiment has many features in common with the first embodiment described above in connection with FIGS. 1A to 8B.
  • the elements of the fine adjustment device of FIGS. 9A, 9B and 9C which are identical or analogous to elements of the first embodiment are designated by the same reference number increased by 100.
  • the fine adjustment device of the present example has three blind holes (instead of two). It can therefore be understood that, as will be seen in more detail below, the fine adjustment device of the present example has three stable configurations associated respectively with three different strap lengths. Still referring to FIGS. 9A, 9B and 9C, one can see two first blind holes which have substantially the same depth and which will be called hereinafter "first immobilization hole 137a" and "second immobilization hole 137b".
  • auxiliary hole 139 a third blind hole which is shallower and which will be called hereinafter "auxiliary hole 139".
  • the first end 127 of the lever 123 is arranged to selectively cooperate with one of the two immobilization holes 137a and 137b, or with the auxiliary hole 139, so as to allow the internal part to be immobilized of the fine adjustment device, with respect to its external part, in one or another of three relative positions associated respectively with a short length, with an average length, and with a long length of the bracelet.
  • the rectangular plate 155 is in abutment against the bottom of the notch 159 when the end bent 127 of lever 123 is engaged in the first immobilization hole 137a. It will also be understood that when the curved end 127 of the lever 123 is engaged in the auxiliary hole 139 (FIG. 9C), these are the two pads 135a, 135b which are in abutment against the bottom of the cells 133a, 133b.
  • the configuration of the fine adjustment device in which the lever 123 cooperates with the auxiliary hole 139 is associated with the maximum length of the bracelet, and the configuration in which the lever cooperates with the first hole immobilization 137a is associated with the minimum length of the bracelet.
  • the configuration of the fine adjustment device in which the lever cooperates with the second immobilization hole 137b is associated with an intermediate length of the bracelet.
  • FIGS. 10A and 10B are perspective views similar to those of FIGS. 1A and 1B from the outside of a bracelet, the bracelet not being of the same model as in FIGS. 1A and 1B, while the two fine adjustment devices also conform to the first embodiment of the invention.
  • FIGS. 10A and 10B illustrate how the fine adjustment device of the invention can be adapted to another model of bracelet, requiring a minimum of modifications. It will further be understood that various modifications and / or improvements obvious to a person skilled in the art can be made to the embodiment which is the subject of the present description without departing from the scope of the present invention defined by the appended claims.

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Abstract

The device (15, 17) for finely adjusting the length of a band (1) is intended to be inserted between two elements of the band and comprises an outer portion (5) designed to be attached to one of the two elements, an inner portion designed to be attached to the other element and to slide into the outer portion parallel to the longitudinal direction of the band so as to adjust the length of the band, and abutment means (33a, 35a, 33b, 35b; 135b) designed to limit the travel of the inner portion relative to the outer portion, such that the band cannot extend beyond a maximum length, the outer portion further comprising a wall (29; 129) having an immobilisation hole (37; 137a, 137b) on the inner side thereof, and the inner portion comprising a pivoting lever (23; 123) which comprises a first end (27; 127) which is designed to be returned by a spring (25) towards the wall of the outer portion, so as to allow the first end of the lever to be engaged in the immobilisation hole in such a way as to immobilise the inner portion relative to the outer portion in a relative position giving the band a determined length less than the maximum length, the inner portion also comprising a control member (53; 153) designed to allow the lever to be controlled manually in order to space the folded end apart from the immobilisation hole, in such a way as to disengage the inner portion from the outer portion.

Description

Dispositif de réglage fin de la longueur d’un bracelet Device for fine adjustment of the length of a bracelet
et bracelet comportant un tel dispositif au moins and bracelet comprising at least one such device
Conformément à un premier aspect de la présente invention, cette dernière concerne un dispositif de réglage fin de la longueur d’un bracelet, le dispositif étant destiné à être inséré entre deux éléments du bracelet et comprenant une partie externe agencée pour être attachée à l’un des deux éléments, une partie interne agencée pour être attachée à l’autre élément du bracelet et pour coulisser dans la partie externe parallèlement à la direction longitudinale du bracelet de façon à faire varier la longueur du bracelet, et des moyens de butées agencés pour limiter la course de la partie interne relativement à la partie externe de sorte que le bracelet ne puisse pas s’allonger au-delà d’une longueur maximum, la partie externe comportant en outre une paroi présentant au moins un trou d’immobilisation sur son côté intérieur, et la partie interne comportant des moyens d’accrochage et un ressort agencé pour amener les moyens d’accrochage à s’engager dans ledit au moins un trou, de manière à permettre d'immobiliser la partie interne par rapport à la partie externe dans au moins une position relative conférant au bracelet une longueur déterminée. La présente invention concerne notamment un tel dispositif de réglage fin destiné à être inséré entre deux élément d’un bracelet de montre, et elle concerne en particulier un tel dispositif de réglage fin destiné à faire partie d’un bracelet pourvu d’un fermoir de type déployant comportant au moins un capot d'ouverture et de fermeture. According to a first aspect of the present invention, the latter relates to a device for fine adjustment of the length of a bracelet, the device being intended to be inserted between two elements of the bracelet and comprising an external part arranged to be attached to the one of the two elements, an internal part arranged to be attached to the other element of the bracelet and to slide in the external part parallel to the longitudinal direction of the bracelet so as to vary the length of the bracelet, and stop means arranged to limit the stroke of the internal part relative to the external part so that the bracelet cannot extend beyond a maximum length, the external part further comprising a wall having at least one immobilization hole on its inner side, and the internal part comprising hooking means and a spring arranged to cause the hooking means to engage in said at least one hole, so as to pe resetting to immobilize the internal part with respect to the external part in at least one relative position giving the bracelet a determined length. The present invention relates in particular to such a fine adjustment device intended to be inserted between two elements of a watch strap, and it relates in particular to such a fine adjustment device intended to form part of a bracelet provided with a clasp. deploying type comprising at least one opening and closing cover.
Conformément à un second aspect, la présente invention concerne un bracelet comportant au moins un dispositif de réglage fin de sa longueur. According to a second aspect, the present invention relates to a bracelet comprising at least one device for fine adjustment of its length.
ART ANTERIEUR PRIOR ART
On connaît déjà des dispositifs de réglage fin de la longueur d’un bracelet qui correspondent à la définition donnée ci-dessus. Le document de brevet CH 699 067 B1 notamment décrit un dispositif de réglage fin pour un bracelet pourvu d’un fermoir de type déployant comportant au moins un couvercle d’ouverture et de fermeture comprenant une face supérieure et deux faces latérales qui sont symétriques l'une par rapport à l'autre et présentent chacune deux perçages. Le couvercle d'ouverture et de fermeture du fermoir fait simultanément partie du fermoir et du dispositif de réglage fin, et ce dernier comporte également un support de base agencé pour être logé de manière coulissante à l’intérieur du couvercle d’ouverture et de fermeture. Le support de base comporte des moyens de fixation agencés pour coopérer sélectivement avec un des deux perçages que présente chacune des faces latérales. Comme chaque face latérale comporte deux perçages, on comprendra que le dispositif de réglage fin permet de choisir entre deux longueurs de bracelet différentes. Les moyens de fixation comportent une barrette qui sert à attacher un brin du bracelet au support de base et dont les deux extrémités sont en outre munies chacune d’un cliquet à bille. La barrette est montée dans le support de base de manière à ce que les deux billes dépassent de part et d’autre par des ouvertures aménagées dans les côtés de ce dernier. Comme le support de base est logé dans le couvercle d’ouverture et de fermeture de manière à coulisser entre les deux faces latérales, on comprendra que les billes des deux cliquets sont poussées en permanence par leur ressort respectif en direction des côtés intérieurs des deux faces latérales du couvercle. Lorsque la position du support de base dans le couvercle est telle que les deux billes se trouvent chacune en regard d’un perçage, elles s’engagent partiellement dans ces perçages de sorte que le support de base est immobilisé relativement au couvercle. Lorsque les billes sont engagées dans la paire de perçages associée à la longueur de bracelet la plus courte. Il suffit de tirer sur un des brins du bracelet pour que les billes sortent des perçages dans lesquels elles sont engagées et roulent contre l’intérieur des faces latérales du couvercle pour venir s’engager dans l’autre paire de perçages. Un avantage de ce dispositif de réglage fin connu est qu’il permet au porteur d’un bracelet d’augmenter la longueur de ce dernier en se servant d’une seule main et sans enlever le bracelet. On comprendra toutefois que la caractéristique qui vient d’être décrite n’est pas toujours avantageuse. En effet, le porteur d’un bracelet équipé de ce dispositif de réglage fin connu court le risque de déclencher involontairement l’allongement du bracelet suite à un impact ou même en fléchissant simplement le poignet. Devices for fine adjustment of the length of a bracelet are already known which correspond to the definition given above. The document of Patent CH 699 067 B1 in particular describes a fine adjustment device for a bracelet provided with a deployant-type clasp comprising at least one opening and closing cover comprising an upper face and two lateral faces which are symmetrical with respect to one another to each other and each have two holes. The opening and closing cover of the clasp is simultaneously part of the clasp and of the fine adjustment device, and the latter also comprises a base support arranged to be slidably housed inside the opening and closing cover. . The base support comprises fixing means arranged to cooperate selectively with one of the two bores that each of the side faces has. As each side face has two holes, it will be understood that the fine adjustment device makes it possible to choose between two different lengths of bracelet. The fixing means comprise a bar which is used to attach a strand of the bracelet to the base support and the two ends of which are each provided with a ball pawl. The bar is mounted in the base support so that the two balls protrude on either side by openings arranged in the sides of the latter. As the base support is housed in the opening and closing cover so as to slide between the two lateral faces, it will be understood that the balls of the two pawls are constantly pushed by their respective spring towards the interior sides of the two faces side of the cover. When the position of the base support in the cover is such that the two balls are each opposite a hole, they partially engage in these holes so that the base support is immobilized relative to the cover. When the beads are engaged in the pair of holes associated with the shortest bracelet length. It suffices to pull on one of the strands of the bracelet so that the balls come out of the holes in which they are engaged and roll against the inside of the lateral faces of the cover to come and engage in the other pair of holes. An advantage of this known fine adjustment device is that it allows the wearer of a bracelet to increase the length of the latter using one hand and without removing the bracelet. It will however be understood that the characteristic which has just been described is not always advantageous. Indeed, the wearer of a bracelet equipped with this known fine adjustment device runs the risk of involuntarily triggering the elongation of the bracelet following an impact or even by simply bending the wrist.
Le document de brevet EP 2 875 747 A1 propose de remédier à ce problème. Il décrit un dispositif de réglage fin de la longueur d’un bracelet qui est conforme à la définition donnée en préambule. La partie externe de ce dispositif comporte une crémaillère agencée à l’intérieur de sa face supérieure, et la partie interne comprend des moyens d’accrochage sous la forme d’un cliquet, ainsi qu’un ressort agencé pour rappeler le cliquet contre la crémaillère. La denture de la crémaillère est asymétrique. Lorsque le porteur du bracelet exerce une force sur le brin de bracelet solidaire de la partie interne, de manière à enfoncer cette dernière plus profondément dans la partie externe, une des dents de la crémaillère repousse le cliquet en le faisant pivoter à l’encontre du ressort, de sorte que le cliquet se trouve désengagé de la crémaillère. La partie interne est alors libre de coulisser dans un sens correspondant à un raccourcissement du bracelet. A l'inverse, si le porteur du bracelet exerce une force sur le brin de bracelet dans le sens correspondant à l’allongement du bracelet, cette force est sans effet. En effet, le cliquet assure alors le verrouillage entre la partie interne et la partie externe en coopérant avec l’autre côté d’une des dents asymétriques de la crémaillère. On comprendra que la caractéristique qui vient d’être décrite n’est pas toujours avantageuse. En effet, si le porteur d’un bracelet équipé de ce dispositif de réglage fin n’est pas assez précis dans ses manipulations, il risque de trop raccourcir le bracelet et de devoir ensuite ouvrir le fermoir pour le desserrer. Patent document EP 2 875 747 A1 proposes to remedy this problem. It describes a device for fine adjustment of the length of a bracelet which conforms to the definition given in the preamble. The external part of this device comprises a rack arranged inside its upper face, and the internal part comprises hooking means in the form of a pawl, as well as a spring arranged to return the pawl against the rack. . The rack teeth are asymmetrical. When the wearer of the bracelet exerts a force on the bracelet strand integral with the internal part, so as to push the latter deeper into the external part, one of the teeth of the rack repels the pawl by rotating it against the spring, so that the pawl is disengaged from the rack. The internal part is then free to slide in a direction corresponding to a shortening of the bracelet. Conversely, if the bracelet wearer exerts a force on the bracelet strand in the direction corresponding to the lengthening of the bracelet, this force has no effect. Indeed, the pawl then ensures the locking between the internal part and the external part by cooperating with the other side of one of the asymmetrical teeth of the rack. It will be understood that the characteristic which has just been described is not always advantageous. Indeed, if the wearer of a bracelet equipped with this fine adjustment device is not precise enough in his manipulations, he risks too shortening the bracelet and then having to open the clasp to loosen it.
BREF EXPOSE DE L’INVENTION BRIEF STATEMENT OF THE INVENTION
Un but de la présente invention est de remédier aux inconvénients de l’art antérieur qui viennent d’être expliqués. La présente invention atteint ce but ainsi que d’autres en fournissant un dispositif de réglage fin de la longueur d’un bracelet conforme à la revendication 1 annexée. An object of the present invention is to remedy the drawbacks of the prior art which have just been explained. The present invention achieves this goal as well as others by providing a device for fine adjustment of the length of a bracelet according to claim 1 appended.
Dans la présente description, on désigne par l'expression "axe longitudinal" (du dispositif de réglage fin de la longueur d'un bracelet) un axe du dit dispositif, qui est confondu avec l'axe longitudinal du bracelet lorsque le dispositif est inséré entre deux éléments de celui-ci. De même, certaines parties du dit dispositif peuvent être qualifiées de "supérieures" et "d'inférieures" en référence respectivement aux côtés externe et interne du bracelet. In the present description, the expression "longitudinal axis" (of the device for fine adjustment of the length of a bracelet) designates an axis of said device, which coincides with the longitudinal axis of the bracelet when the device is inserted. between two elements of it. Likewise, certain parts of the said device can be described as "upper" and "lower" with reference respectively to the external and internal sides of the bracelet.
Conformément à l’invention, la partie interne comporte un coulisseau et un levier agencé pivotant dans un logement du coulisseau, le levier faisant partie des moyens d’accrochage et présentant une première extrémité qui est agencée pour être rappelée par le ressort en direction de la paroi de la partie externe, de façon à permettre au levier de coopérer avec ledit au moins un trou d’immobilisation pour solidariser la partie interne relativement à la partie externe dans au moins une position conférant au bracelet une longueur déterminée inférieure à la longueur maximum, et en ce que la partie interne comporte une organe de commande agencé pour permettre de commander manuellement le levier pour écarter la première extrémité du trou d’immobilisation dans lequel elle est insérée, de façon à désolidariser la partie interne de la partie externe. According to the invention, the internal part comprises a slide and a lever arranged pivoting in a housing of the slide, the lever forming part of the hooking means and having a first end which is arranged to be returned by the spring in the direction of the wall of the external part, so as to allow the lever to cooperate with said at least one immobilization hole to secure the internal part relative to the external part in at least one position giving the bracelet a determined length less than the maximum length, and in that the internal part comprises a control member arranged to allow manual control of the lever to spread the first end of the immobilization hole in which it is inserted, so as to separate the internal part from the external part.
On comprendra donc notamment que selon l’invention, la partie externe comporte au moins un trou d’immobilisation, mais qu’elle n’est pas équipée d’une crémaillère. De plus, la partie interne et la partie externe sont solidaires l’une de l’autre tant que le levier coopère avec le trou d’immobilisation. Pour désolidariser la partie interne de la partie externe, il est nécessaire d’actionner manuellement l’organe de commande de façon à écarter l’extrémité repliée du levier du trou d’immobilisation. Un premier avantage de l’invention est donc qu’un impact accidentel ou une flexion énergique du poignet ne risque pas de provoquer un allongement involontaire du bracelet. Un deuxième avantage est que le porteur de la montre ne peut pas changer la longueur du bracelet lorsque ce dernier est fermé. Il ne risque donc pas de devoir le rouvrir parce qu’il l’a trop serré. It will therefore be understood in particular that according to the invention, the external part comprises at least one immobilization hole, but that it is not equipped with a rack. In addition, the internal part and the external part are integral with each other as long as the lever cooperates with the immobilization hole. To separate the internal part from the external part, it is necessary to manually actuate the control member so as to separate the folded end of the lever from the immobilization hole. A first advantage of the invention is therefore that an accidental impact or an energetic bending of the wrist does not risk causing an involuntary elongation of the bracelet. A second advantage is that the watch wearer cannot change the length of the strap when the latter is closed. There is therefore no risk of having to reopen it because it has been tightened too much.
Conformément à un mode de réalisation particulier de l’invention, la paroi de la partie externe comporte une face supérieure dans laquelle est formé ledit au moins un trou d’immobilisation. De plus, le levier est agencé pour pivoter dans un plan qui est normal à la face supérieure et qui contient l’axe longitudinal du bracelet. According to a particular embodiment of the invention, the wall of the external part has an upper face in which said at least one immobilization hole is formed. In addition, the lever is arranged to pivot in a plane which is normal to the upper face and which contains the longitudinal axis of the bracelet.
Conformément à un autre mode de réalisation particulier de l’invention, la partie interne comporte une butée auxiliaire agencée pour coopérer avec un bord de la partie externe de manière à limiter la course de la partie interne relativement à la partie externe de façon que la longueur du bracelet ne puisse pas être inférieure à la longueur minimum, et selon une variante avantageuse de ce dernier mode de réalisation, la longueur minimum est égale à la longueur déterminée. On comprendra donc que conformément à cette variante avantageuse, la butée auxiliaire agit de concert avec le levier et le trou d’immobilisation pour immobiliser la partie interne par rapport à la partie externe dans une position relative conférant au bracelet une longueur minimum. Un avantage de ce mode de réalisation est qu’il donne la possibilité d’optimiser la conformation du trou d’immobilisation et du levier de manière à ce que la partie interne soit positionnée sans jeu longitudinal relativement à la partie externe. According to another particular embodiment of the invention, the internal part comprises an auxiliary stop arranged to cooperate with an edge of the external part so as to limit the stroke of the internal part relative to the external part so that the length of the bracelet cannot be less than the minimum length, and according to an advantageous variant of this latter embodiment, the minimum length is equal to the determined length. It will therefore be understood that, in accordance with this advantageous variant, the auxiliary stop acts in concert with the lever and the immobilization hole to immobilize the internal part relative to the external part in a relative position giving the bracelet a minimum length. An advantage of this embodiment is that it gives the possibility of optimizing the conformation of the immobilization hole and of the lever so that the internal part is positioned without longitudinal play relative to the external part.
Conformément à une autre variante avantageuse du mode de réalisation susmentionné, le coulisseau présente deux perçages agencés de part et d’autre et en regard l’un de l’autre, et la butée auxiliaire comporte au moins un bras de fixation muni d’un trou traversant qui est agencé coaxialement entre les deux perçages. Enfin, la butée auxiliaire est fixée au coulisseau à l’aide d’une goupille qui est orientée perpendiculairement à la longueur du bracelet et qui est insérée à travers le trou traversant et les deux perçages. On comprendra que la butée auxiliaire doit pouvoir être séparée du reste de la partie interne de manière à permettre de démonter le dispositif de réglage fin. Un avantage associé à la variante susmentionnée est que l’assemblage et le désassemblage de la butée auxiliaire et du coulisseau est particulièrement aisé. Enfin, la goupille remplit de préférence également la fonction d’axe de pivotement pour le levier. Un avantage de cette dernière variante est qu’elle simplifie encore d’avantage la tâche d’assembler ou de désassembler le dispositif de réglage fin. On comprendra en outre que, selon cette variante, le levier est agencé pour pivoter autour d’un axe perpendiculaire à l’axe longitudinal du bracelet. According to another advantageous variant of the above-mentioned embodiment, the slide has two holes arranged on either side and facing one another, and the auxiliary stop comprises at least one fixing arm provided with a through hole which is arranged coaxially between the two holes. Finally, the auxiliary stopper is fixed to the slide using a pin which is oriented perpendicular to the length of the bracelet and which is inserted through the through hole and the two holes. It will be understood that the auxiliary stop must be able to be separated from the rest of the internal part so as to allow the fine adjustment device to be dismantled. An advantage associated with variant mentioned above is that the assembly and disassembly of the auxiliary stop and the slide is particularly easy. Finally, the pin preferably also fulfills the function of a pivot axis for the lever. An advantage of this latter variant is that it further simplifies the task of assembling or disassembling the fine adjustment device. It will also be understood that, according to this variant, the lever is arranged to pivot around an axis perpendicular to the longitudinal axis of the bracelet.
BREVE DESCRIPTION DES FIGURES BRIEF DESCRIPTION OF THE FIGURES
D’autres caractéristiques et avantages de la présente invention apparaîtront à la lecture de la description qui va suivre, donnée uniquement à titre d’exemple non limitatif, et faite en référence aux dessins annexés dans lesquels : Other characteristics and advantages of the present invention will appear on reading the description which follows, given solely by way of nonlimiting example, and made with reference to the appended drawings in which:
les figures 1A et 1 B sont des vues en perspectives du côté extérieur d'un bracelet équipé d'un fermoir à boucle déployante papillon et d'une paire de dispositifs de réglage fin conformes à un premier mode de réalisation de l'invention, les figures 1A et 1 B montrant respectivement les dispositifs de réglage fin dans une configuration courte et dans une configuration longue du bracelet; FIGS. 1A and 1B are perspective views of the outside of a bracelet fitted with a butterfly folding clasp and of a pair of fine adjustment devices in accordance with a first embodiment of the invention, the FIGS. 1A and 1B respectively showing the fine adjustment devices in a short configuration and in a long configuration of the bracelet;
les figures 2A et 2B sont des vues en perspectives du côté intérieur du bracelet des figures 1 A et 1 B, et qui représentent la boucle du fermoir du bracelet en configuration déployée, les figures 2A et 2B montrant respectivement les dispositifs de réglage fin dans une configuration courte et dans une configuration longue du bracelet; FIGS. 2A and 2B are perspective views of the interior side of the bracelet of FIGS. 1A and 1B, and which represent the buckle of the clasp of the bracelet in the deployed configuration, FIGS. 2A and 2B respectively showing the fine adjustment devices in a short configuration and in a long configuration of the bracelet;
les figures 3A et 3B sont des vues en perspectives depuis dessous montrant respectivement le capot et le coulisseau d’un des dispositifs de réglage fin des figures 1 A, 1 B, 2A et 2B; Figures 3A and 3B are perspective views from below respectively showing the cover and the slide of one of the fine adjustment devices of Figures 1A, 1B, 2A and 2B;
les figures 4A et 4B sont des vues écorchées en perspective d’un des dispositifs de réglage fin des figures 1 A, 1 B, 2A et 2B, la couche extérieure de la face supérieure du capot ayant été omise, et les figures 4A et 4B montrant respectivement le dispositif de réglage fin dans une configuration courte et une configuration longue du bracelet; Figures 4A and 4B are cutaway perspective views of one of the fine adjustment devices of Figures 1A, 1B, 2A and 2B, the outer layer of the upper face of the cover having been omitted, and Figures 4A and 4B showing respectively the fine adjustment device in a short configuration and a long configuration of the bracelet;
les figures 5A et 5B sont deux vues en coupe transversale d'un des deux dispositifs de réglage fin du bracelet des figures 1A, 1 B, 2A et 2B, la coupe étant réalisée au niveau du plan de pivotement du levier, et les figures 5A et 5B montrant la première extrémité du levier respectivement engagée dans, et écartée du, trou d'immobilisation; Figures 5A and 5B are two cross-sectional views of one of the two fine adjustment devices of the bracelet of Figures 1A, 1B, 2A and 2B, the cut being made at the level of the pivot plane of the lever, and Figures 5A and 5B showing the first end of the lever respectively engaged in, and separated from, the immobilization hole;
la figure 5C est une vue en coupe transversale semblable à celles des figures 5A et 5B; la figure 5C montrant la première extrémité du levier engagée dans le trou auxiliaire; Figure 5C is a cross-sectional view similar to that of Figures 5A and 5B; FIG. 5C showing the first end of the lever engaged in the auxiliary hole;
la figure 6 est une vue en coupe transversale selon le plan C-C de la figure 5A; Figure 6 is a cross-sectional view along the plane C-C of Figure 5A;
La figure 7 est une vue en coupe transversale selon le plan A-A de la figure 6; Figure 7 is a cross-sectional view along the plane A-A of Figure 6;
les figures 8A et 8B sont deux vues en coupe transversale selon le plan B-B de la figure 6; les figures 8A et 8B montrant respectivement le dispositif de réglage fin dans une configuration courte et dans une configuration longue du bracelet; Figures 8A and 8B are two cross-sectional views along the plane B-B of Figure 6; FIGS. 8A and 8B respectively showing the fine adjustment device in a short configuration and in a long configuration of the bracelet;
les figures 9A, 9B et 9C sont trois vues en coupe transversale d'un dispositif de réglage fin conforme à un deuxième mode de réalisation de l'invention, la coupe étant réalisée au niveau du plan de pivotement du levier, et les figures 9A, 9B et 9C montrant respectivement le dispositif de réglage fin dans une configuration courte, une configuration moyenne, et une configuration longue du bracelet ; FIGS. 9A, 9B and 9C are three cross-section views of a fine adjustment device according to a second embodiment of the invention, the section being made at the level of the pivot plane of the lever, and FIGS. 9A, 9B and 9C respectively showing the fine adjustment device in a short configuration, a medium configuration, and a long configuration of the bracelet;
les figures 10A et 10B sont des vues en perspectives semblables à celles des figures 1A et 1 B du côté extérieur d'un bracelet, le bracelet étant d’un modèle différent, et les deux dispositifs de réglage fin étant conformes à une variante du premier mode de réalisation de l’invention. DESCRIPTION DETAILLEE D’UN MODE REALISATION FIGS. 10A and 10B are perspective views similar to those of FIGS. 1A and 1B on the outside of a bracelet, the bracelet being of a different model, and the two fine adjustment devices being in accordance with a variant of the first embodiment of the invention. DETAILED DESCRIPTION OF AN EMBODIMENT
Les figures 1A, 1 B, 2A et 2B sont des vues en perspectives d'un bracelet 1 équipé d'un fermoir 3 à boucle déployante papillon. Le fermoir 3 est représenté en position fermée dans les figures 1A et 1 B et en position ouverte dans les figures 2A et 2B. Il comporte, de manière classique, deux lames pivotantes symétriques articulées sur une lame de base, deux demi-capots d’ouverture et de fermeture (référencés respectivement 5 et 7) montés pivotant sur les extrémités des deux lames pivotantes, et un verrouillage de sécurité qui peut être actionné au moyen de deux poussoirs (référencés 9). De façon tout-à-fait classique, les deux demi-capots 5, 7 sont agencés pour venir se positionner face- à-face, l’un contre l’autre, lorsqu’on ferme le bracelet. On appellera ci-après « bord de fermeture » 19a (ou respectivement 19b) le bord, de l’un ou l’autre des demi- capots, qui fait face au bord de fermeture de l’autre demi-capot dans les figures 1A et 1 B. Les fermoirs du type déployant sont bien connus de l’homme du métier. C’est la raison pour laquelle le fermoir 3 du présent exemple ne sera pas décrit plus en détail. Un exemple de fermoir de sécurité à boucle déployante est décrit dans le document de brevet EP 3 162 241 A1. Ce document est incorporé par référence dans la présente description. FIGS. 1A, 1B, 2A and 2B are perspective views of a bracelet 1 equipped with a clasp 3 with a butterfly folding clasp. The clasp 3 is shown in the closed position in Figures 1A and 1B and in the open position in Figures 2A and 2B. It comprises, conventionally, two symmetrical pivoting blades articulated on a base blade, two opening and closing half-covers (referenced respectively 5 and 7) pivotally mounted on the ends of the two pivoting blades, and a safety lock which can be actuated by means of two pushers (referenced 9). In a completely conventional manner, the two half-covers 5, 7 are arranged to come to position face-to-face, one against the other, when the bracelet is closed. Hereinafter, “closing edge” 19a (or respectively 19b) will be called the edge, of one or other of the half-covers, which faces the closing edge of the other half-cover in FIGS. 1A and 1 B. Folding type clasps are well known to those skilled in the art. This is the reason why the clasp 3 of the present example will not be described in more detail. An example of a folding clasp safety clasp is described in patent document EP 3 162 241 A1. This document is incorporated by reference into the present description.
Dans l’exemple illustré, les deux demi-capots 5 et 7 sont en outre attachés respectivement à deux brins 1 1 , 13 du bracelet par l’intermédiaire d’un premier et d’un deuxième dispositif de réglage fin (référencés respectivement 15 et 17) qui sont tous les deux conformes à un premier mode de réalisation de l'invention. Les deux dispositifs de réglage fin peuvent être identiques et, conformément à ce qui sera décrit plus en détail plus loin, leur présence permet de régler la longueur du bracelet 1 entre une longueur de base (courte) et une longueur de mise à l'aise (plus longue). Les figures 1A et 2A montrent le bracelet avec les deux dispositifs de réglage fin 15, 17 dans la configuration associée à la longueur de base du bracelet, alors que les figures 1 B et 2B le montrent avec les deux dispositifs dans la configuration associée à sa longueur de mise à l’aise. Comme on peut s’en rendre compte à la vue des figures, les dimensions des dispositifs de réglage fin 15 et 17 sont sensiblement les mêmes que celles des maillons du bracelet 1. Cette uniformité des dimensions permet de réaliser des bracelets formés d’éléments homogènes, et donc des bracelets homogènes également. In the example illustrated, the two half-covers 5 and 7 are also attached respectively to two strands 11, 13 of the bracelet by means of a first and a second fine adjustment device (referenced respectively 15 and 17) which are both in accordance with a first embodiment of the invention. The two fine adjustment devices can be identical and, in accordance with what will be described in more detail below, their presence makes it possible to adjust the length of the bracelet 1 between a base length (short) and a comfortable putting length. (longer). Figures 1A and 2A show the bracelet with the two fine adjustment devices 15, 17 in the configuration associated with the base length of the bracelet, while Figures 1 B and 2B show it with the two devices in the configuration associated with its comfortable putting length. As can be seen from the figures, the dimensions of the fine adjustment devices 15 and 17 are substantially the same as those of the links of bracelet 1. This uniformity of dimensions makes it possible to produce bracelets formed of homogeneous elements , and therefore also homogeneous bracelets.
Les figures 3A à 8B sont des vues qui montrent plus en détail un des deux dispositifs de réglage fin 15 et 17 du bracelet 1 des figures 1 A, 1 B, 2A et 2B. Conformément à l’invention, le dispositif de réglage fin comporte une partie externe et une partie interne qui est agencée pour coulisser dans la partie externe, parallèlement à la direction longitudinale du bracelet. Conformément au mode de réalisation qui fait l’objet du présent exemple, les deux demi-capots d’ouverture et de fermeture 5, 7 du fermoir 3 remplissent chacun la fonction de partie externe pour le dispositif de réglage fin (respectivement 15 et 17) auquel ils sont associés. Conformément à l'invention, la partie interne du dispositif de réglage fin représenté comprend un coulisseau 20 comportant un logement 21 , et comprend en outre un levier 23 (montré dans les figures 5A, 5B et 5C) et un ressort 25 (montré dans les figures 6 et 7) agencés dans le logement 21 , le levier présentant une première extrémité 27 qui, comme on le verra plus en détail plus loin, est agencée pour permettre d’immobiliser la partie interne par rapport à la partie externe. Figures 3A to 8B are views which show in more detail one of the two fine adjustment devices 15 and 17 of the bracelet 1 of Figures 1A, 1B, 2A and 2B. According to the invention, the fine adjustment device comprises an external part and an internal part which is arranged to slide in the external part, parallel to the longitudinal direction of the bracelet. In accordance with the embodiment which is the subject of this example, the two opening and closing half-covers 5, 7 of the clasp 3 each fulfill the function of external part for the fine adjustment device (respectively 15 and 17) with which they are associated. According to the invention, the internal part of the fine adjustment device shown comprises a slide 20 comprising a housing 21, and further comprises a lever 23 (shown in FIGS. 5A, 5B and 5C) and a spring 25 (shown in the Figures 6 and 7) arranged in the housing 21, the lever having a first end 27 which, as will be seen in more detail below, is arranged to allow to immobilize the internal part relative to the external part.
La figure 3A est une vue en perspective depuis dessous de la partie externe 5. En se référant notamment à cette figure, on peut voir que la partie externe possède généralement un profil en "U" inversé, sa section transversale étant sensiblement uniforme. La base du U inversé est constituée par la face supérieure 29 du demi-capot et les deux montants sont constitués par deux faces latérales opposées 31 a et 31 b. On peut voir que le côté intérieur de la face supérieure 29 du demi-capot 5 présente une surépaisseur dans laquelle on a formé un certain nombre de structures en creux. Parmi celles-ci, on peut voir tout d’abord une alvéole 33a présentant une forme allongée dans la direction longitudinale du bracelet. Une des extrémités allongées de l’alvéole 33a est une extrémité fermée constituant un fond, alors que l’extrémité opposée est ouverte et débouche sur l’extérieur à travers le bord de fermeture 19a. On peut voir encore que l’alvéole 33a jouxte le côté intérieur de la face latérale 31 a du demi-capot, et qu’elle s’étend même sur une courte distance sous la face latérale de façon à former à la base de cette dernière une rainure de guidage latérale. Conformément au présent exemple, le demi-capot 5 est symétrique. On comprendra donc que le côté intérieur de la face supérieur 29 présente également une deuxième alvéole 33b (visible notamment dans les figures 4A et 4B) de forme allongée qui jouxte la face latérale 31 b, de sorte qu’elle n’est pas visible dans la figure 3A. La figure 3A montre encore un premier trou borgne 37 appelé ci-après « trou d’immobilisation 37 » et un deuxième trou borgne 39, plus petit, appelé ci-après « trou auxiliaire 39 » qui sont formés dans le côté intérieur de la face supérieur 29, les trous 37 et 39 présentant une forme allongée transversalement à la direction longitudinale du bracelet. On peut voir en outre que la face supérieure du capot 5 présente également une échancrure rectangulaire 59 qui est aménagée dans le bord opposé au bord de fermeture 19a. FIG. 3A is a perspective view from below of the external part 5. With particular reference to this figure, it can be seen that the external part generally has an inverted "U" profile, its cross section being substantially uniform. The base of the inverted U is constituted by the upper face 29 of the half-cover and the two uprights are constituted by two opposite lateral faces 31 a and 31 b. It can be seen that the inner side of the upper face 29 of the half-cover 5 has an extra thickness in which a number of hollow structures have been formed. Among these, we can first see a cell 33a having an elongated shape in the longitudinal direction of the bracelet. One of the elongated ends of the cell 33a is a closed end constituting a bottom, while the opposite end is open and opens to the outside through the closing edge 19a. It can also be seen that the cell 33a adjoins the inner side of the side face 31a of the half-cover, and that it even extends over a short distance under the side face so as to form at the base of the latter. a lateral guide groove. According to this example, the half-cover 5 is symmetrical. It will therefore be understood that the inner side of the upper face 29 also has a second cell 33b (visible in particular in FIGS. 4A and 4B) of elongated shape which adjoins the lateral face 31b, so that it is not visible in Figure 3A. FIG. 3A also shows a first blind hole 37 hereinafter called “immobilization hole 37” and a second smaller blind hole 39, hereinafter called “auxiliary hole 39” which are formed in the inner side of the face upper 29, the holes 37 and 39 having an elongated shape transverse to the longitudinal direction of the bracelet. It can also be seen that the upper face of the cover 5 also has a rectangular notch 59 which is arranged in the edge opposite the closing edge 19a.
La figure 3B est une vue en perspective depuis dessous du coulisseau 20 de la partie interne du dispositif de réglage fin. On peut voir que le coulisseau comporte une partie principale dimensionnée de manière à pouvoir s’insérer entre les deux faces latérales 31 a, 31 b de la partie externe, et une partie de liaison (référencée 60) plus étroite. On peut voir encore que le coulisseau 20 est symétrique par rapport à un plan de symétrie qui est parallèle à l’axe longitudinal du bracelet, et qu’un logement 21 , qui est agencé au centre du coulisseau, s’ouvre du côté inférieur de ce dernier. En se référant toujours à la même figure, on peut voir que le bord de la partie principale du coulisseau 20 comporte encore une encoche centrale 51 qui est agencée dans le prolongement du logement 21 . On comprendra que l’encoche 51 est traversée en son milieu par le plan de symétrie du coulisseau 20. Comme on le verra plus en détail plus loin, l’encoche 51 constitue une ouverture destinée à permettre le passage de la première extrémité 27 du levier 23. On peut voir de plus que la partie principale du coulisseau comporte deux perçages 41 a, 41 b agencés coaxialement de part et d'autre du logement 21 , et que la partie de liaison 60 présente un perçage transversal 61 qui s’étend parallèlement à l'axe commun aux perçages 41 a et 41 b. Enfin, le coulisseau 20 présente encore deux patins latéraux 35a et 35b agencés respectivement pour coulisser à l’intérieur des alvéoles 33a et 33b de la partie externe. On comprendra notamment que, lors de l’assemblage du dispositif de réglage fin, pour faire entrer la partie interne dans la partie externe 5, on introduit les patins latéraux 35a, 35b par leur extrémité arrondie dans les extrémités ouvertes des alvéoles 33a, 33b. Une fois les patins latéraux 35a, 35b insérés dans les alvéoles, le coulisseau 20 est maintenu latéralement et verticalement à l'intérieur de la partie externe par les alvéoles. Le coulisseau est toutefois libre de coulisser parallèlement à la direction longitudinale du bracelet. En se référant simultanément aux figures 3A et 3B au peut observer en outre que la forme des extrémités arrondies des patins 35a et 35b est complémentaire de la forme du fond des alvéoles 33a, 33b de sorte que le fond de chaque alvéole constitue une butée prévue pour arrêter le coulisseau 20. Il est ainsi important de noter que, conformément au mode de réalisation qui fait l’objet du présent exemple, les butées prévues pour arrêter le coulisseau 20 ne sont pas des pièces rapportées, mais qu’elles viennent au contraire de matière avec le demi-capot 5. De même, les patins 35a, 35b ne sont pas des pièces rapportées. Ils viennent en effet de matière avec le coulisseau 20. On comprendra que ces caractéristiques contribuent à accroître la robustesse du dispositif et qu’elles le rendent ainsi plus sûr. FIG. 3B is a perspective view from below of the slide 20 of the internal part of the fine adjustment device. It can be seen that the slider has a main part dimensioned so as to be able to be inserted between the two lateral faces 31 a, 31 b of the external part, and a narrower connecting part (referenced 60). It can also be seen that the slide 20 is symmetrical with respect to a plane of symmetry which is parallel to the longitudinal axis of the bracelet, and that a housing 21, which is arranged in the center of the slide, opens on the lower side of this last. Still referring to the same figure, it can be seen that the edge of the main part of the slide 20 also has a central notch 51 which is arranged in the extension of the housing 21. It will be understood that the notch 51 is crossed in its middle by the plane of symmetry of the slide 20. As will be seen in more detail below, the notch 51 constitutes an opening intended to allow the passage of the first end 27 of the lever 23. It can also be seen that the main part of the slide comprises two holes 41 a, 41 b arranged coaxially on either side of the housing 21, and that the connecting part 60 has a transverse hole 61 which extends parallel to the axis common to the holes 41 a and 41 b. Finally, the slide 20 also has two lateral pads 35a and 35b arranged respectively to slide inside the cells 33a and 33b of the external part. It will be understood in particular that, during the assembly of the fine adjustment device, to bring the internal part into the external part 5, the lateral pads 35a, 35b are introduced by their rounded end into the open ends of the cells 33a, 33b. Once the lateral pads 35a, 35b inserted into the cells, the slide 20 is held laterally and vertically inside the external part by the cells. The slider is however free to slide parallel to the longitudinal direction of the bracelet. Referring simultaneously to FIGS. 3A and 3B au, it can also be observed that the shape of the rounded ends of the pads 35a and 35b is complementary to the shape of the bottom of the cells 33a, 33b so that the bottom of each cell constitutes a stop intended for stopping the slider 20. It is thus important to note that, in accordance with the embodiment which is the subject of this example, the stops provided for stopping the slider 20 are not attachments, but rather come from material with the half-cover 5. Similarly, the pads 35a, 35b are not attachments. They indeed come in one piece with the slide 20. It will be understood that these characteristics contribute to increasing the robustness of the device and that they thus make it safer.
Les figures 4A et 4B sont des vues en perspective du dispositif de réglage fin du présent exemple. Les figures montrent le dispositif dans deux configurations associées respectivement aux longueurs de base et de mise à l’aise du bracelet. On notera que les vues des figures 4A et 4B sont écorchées. En effet, dans le but de faciliter la compréhension du fonctionnement du dispositif, on n’a pas représenté le côté extérieur de la face supérieure 29 du capot. Cette omission permet de rendre visible les structures formées en creux dans le côté intérieur de la face supérieure. FIGS. 4A and 4B are perspective views of the fine adjustment device of the present example. The figures show the device in two configurations associated respectively with the basic lengths and with making the bracelet comfortable. Note that the views of Figures 4A and 4B are cut away. Indeed, in order to facilitate the understanding of the operation of the device, we has not shown the outer side of the upper face 29 of the cover. This omission makes it possible to make visible the structures formed in hollow in the interior side of the upper face.
Les figures 5A, 5B et 5C sont trois vues en coupe transversale d'un des deux dispositifs de réglage fin du bracelet des figures 1 A, 1 B, 2A et 2B, la coupe étant réalisée selon le plan A-A des figures 4A et 4B. On peut voir que conformément au mode de réalisation qui fait l’objet du présent exemple, la première extrémité 27 du levier 23 est recourbée et elle est agencée pour coopérer sélectivement avec le trou d’immobilisation 37 ou le trou auxiliaire 39 de manière à permettre d’immobiliser la partie interne du dispositif de réglage fin, par rapport à sa partie externe, dans l’une ou l’autre de deux positions relatives associées respectivement à la longueur de base du bracelet et à sa longueur de mise à l’aise. À cet égard, on peut voir que les figures 5A et 5B montrent l'extrémité recourbée 27 du levier 23 respectivement engagée dans, et écartée du, trou d'immobilisation 37. Quant à la figure 5C, elle montre la première extrémité du levier engagée dans le trou auxiliaire 39. Conformément à l’invention, la partie interne comporte en outre un organe de commande agencé pour permettre de commander manuellement le levier 23 pour écarter la première extrémité 27 du trou d’immobilisation, de manière à désolidariser la partie interne de la partie externe du dispositif de réglage fin. Conformément au mode de réalisation qui fait l’objet du présent exemple, le levier 23 comporte deux extrémités opposées l’une à l’autre. La première de ces extrémités est l’extrémité recourbée 27, et la seconde de ces extrémités est une extrémité plane 53. Cette dernière est agencée pour servir d’organe de commande actionnable manuellement, de sorte qu’un utilisateur peut faire pivoter le levier 23 en pressant sur l’extrémité plane 53 de façon à contraindre le ressort 25 (figure 7) et à dégager l’extrémité recourbée 27 du trou d’immobilisation 37 ou du trou auxiliaire 39. On comprendra que lorsque le dispositif de réglage fin est amené dans la configuration illustrée par la figure 5B avec le levier 23 relâché, le ressort 25 rabat soudainement l’extrémité 27 du levier 23 dans le trou d’immobilisation 37, si bien qu’il se produit un « clic » audible susceptible d’avertir l’utilisateur que le levier est revenu en position initiale tel qu’illustré dans la figure 5A. Figures 5A, 5B and 5C are three cross-sectional views of one of the two fine adjustment devices of the bracelet of Figures 1 A, 1 B, 2A and 2B, the section being taken along the plane AA of Figures 4A and 4B. It can be seen that in accordance with the embodiment which is the subject of this example, the first end 27 of the lever 23 is bent and it is arranged to cooperate selectively with the immobilization hole 37 or the auxiliary hole 39 so as to allow to immobilize the internal part of the fine adjustment device, relative to its external part, in one or the other of two relative positions associated respectively with the base length of the bracelet and with its ease of use length . In this regard, it can be seen that FIGS. 5A and 5B show the curved end 27 of the lever 23 respectively engaged in, and separated from, the immobilization hole 37. As for FIG. 5C, it shows the first end of the lever engaged in the auxiliary hole 39. According to the invention, the internal part further comprises a control member arranged to allow manual control of the lever 23 to move the first end 27 away from the immobilization hole, so as to separate the internal part of the external part of the fine adjustment device. In accordance with the embodiment which is the subject of this example, the lever 23 has two ends opposite one another. The first of these ends is the curved end 27, and the second of these ends is a planar end 53. The latter is arranged to serve as a manually operable control member, so that a user can pivot the lever 23 by pressing on the flat end 53 so as to constrain the spring 25 (FIG. 7) and to release the curved end 27 from the immobilization hole 37 or from the auxiliary hole 39. It will be understood that when the fine adjustment device is brought in the configuration illustrated in FIG. 5B with the lever 23 released, the spring 25 suddenly folds the end 27 of the lever 23 in the immobilization hole 37, so that there is an audible "click" capable of warning the user that the lever has returned to the initial position as illustrated in FIG. 5A.
Selon une variante avantageuse (non illustrée), la paroi du trou auxiliaire 39 est inclinée de manière à permettre de retenir l’extrémité 27 du levier 23 à l’intérieur du trou auxiliaire 39 lorsqu’une éventuelle force agissant sur le brin de bracelet qui est solidaire de la partie interne serait susceptible d’enfoncer cette dernière plus profondément dans la partie externe, de sorte que le bracelet s’en trouverait raccourci. La forme du trou auxiliaire selon cette variante permet d’éviter tout risque de raccourcissement involontaire. According to an advantageous variant (not illustrated), the wall of the auxiliary hole 39 is inclined so as to allow the end 27 of the lever 23 to be retained inside the auxiliary hole 39 when a possible force acting on the bracelet strand which is integral with the internal part would be able to push the latter deeper into the external part, so that the bracelet would be shortened. The shape of the auxiliary hole according to this variant makes it possible to avoid any risk of involuntary shortening.
La figure 6 est une vue en coupe transversale selon le plan B-B de la figure 4B. En se référant simultanément à la figure 6 et à l'une quelconque des figures 5A, 5B et 5C, on peut voir que l'axe autour duquel le levier 23 est agencé pour pivoter est formé par l'assemblage d'une goupille 45 et d'un tube réducteur encochés 47. Le tube réducteur est chassé dans le perçage 41 b du coulisseau 20, et la goupille encochée 45 est agencée de manière à traverser le coulisseau de part en part. Elle s'étend ainsi transversalement à travers le perçage 41 a, le logement 21 et le tube réducteur 47 qui est chassé dans le perçage 41 b. La tête de la goupille encochée 45 est logée dans le perçage 41 a, et de l'autre côté, l’extrémité opposée de la goupille est retenue à l’intérieur du tube encoché 47. De plus, comme le montre les figures, à l'intérieur du logement 21 , la goupille 45 traverse successivement une première de deux portions hélicoïdales du ressort 25, puis un perçage 43 à travers le levier 23, et puis encore l’autre portion hélicoïdale du ressort 25. Conformément au mode de réalisation qui fait l’objet du présent exemple, l’extrémité recourbée 27 du levier 23 est agencée pour coopérer sélectivement avec le trou d’immobilisation 37 ou le trou auxiliaire 39 de manière à permettre d’immobiliser la partie interne par rapport à la partie externe dans l’une ou l’autre de deux positions relatives associées respectivement à la longueur de base du bracelet et à sa longueur de mise à l’aise. La figure 7 est une vue en coupe transversale selon le plan D-D de la figure 6. Les figures 6 et 7 montrent notamment le ressort 25 du dispositif de réglage fin. Comme déjà mentionné, le levier 23 et le ressort 25 sont agencés dans le logement du coulisseau 20. En se référant plus particulièrement à la figure 6, on peut voir que le levier 23 est monté sur un axe constitué par la goupille encochée 45 et qu’il présente également deux supports latéraux 49a, 49b qui sont agencés parallèlement de part et d’autre du levier proprement dit. On peut comprendre également que le ressort 25 comporte deux portions hélicoïdales espacées l'une de l'autre par une distance qui correspond sensiblement à la largeur de la partie centrale du levier 23, et qui sont également traversée par la goupille encochée 45. Les deux portions hélicoïdales du ressort 25 sont reliées l'une à l'autre par une portion intermédiaire coudée (non visible) qui dessine une forme de "U". De plus, le ressort 25 comporte également deux portions terminales droites qui s'étendent parallèlement l'une à l'autre et transversalement à l'axe des portions hélicoïdales. En se référant toujours aux figures 6 et 7, on peut comprendre que le ressort 25 est monté de manière à chevaucher le levier 23, ses deux portions terminales étant respectivement calées sur les deux supports latéraux 49a, 49b. On comprendra de plus que, lorsque le ressort 25 est monté sur le levier 23, sa portion intermédiaire en forme de "U" est agencée pour venir en appui contre le côté intérieur d'une portion de paroi constituant la face supérieure du coulisseau 20. On comprendra que la force de réaction exercée par la portion de paroi sur la partie en U du ressort 25 se transmet au levier 23 par l’intermédiaire des parties terminales du ressort, de sorte que l’extrémité recourbée 27 du levier est rappelée en direction de la face supérieure 29 de la partie externe 5, au travers de l’ouverture constituée par le logement 51. Figure 6 is a cross-sectional view along the plane BB of Figure 4B. Referring simultaneously to FIG. 6 and to any one of FIGS. 5A, 5B and 5C, it can be seen that the axis around which the lever 23 is arranged to pivot is formed by the assembly of a pin 45 and of a notched reduction tube 47. The reduction tube is driven into the bore 41 b of the slide 20, and the notched pin 45 is arranged so as to pass through the slide right through. It thus extends transversely through the bore 41 a, the housing 21 and the reduction tube 47 which is driven into the bore 41 b. The head of the notched pin 45 is housed in the bore 41 a, and on the other side, the opposite end of the pin is retained inside the notched tube 47. In addition, as shown in the figures, at inside the housing 21, the pin 45 successively passes through a first of two helical portions of the spring 25, then a bore 43 through the lever 23, and then again the other helical portion of the spring 25. According to the embodiment which is the subject of this example, the curved end 27 of the lever 23 is arranged to selectively cooperate with the immobilization hole 37 or the auxiliary hole 39 so as to allow the internal part to be immobilized relative to the external part in one or the other of two relative positions associated respectively with the base length of the bracelet and with its comfortable length. Figure 7 is a cross-sectional view along the plane DD of Figure 6. Figures 6 and 7 show in particular the spring 25 of the fine adjustment device. As already mentioned, the lever 23 and the spring 25 are arranged in the housing of the slide 20. Referring more particularly to FIG. 6, it can be seen that the lever 23 is mounted on an axis constituted by the notched pin 45 and that 'It also has two lateral supports 49a, 49b which are arranged in parallel on either side of the lever itself. It can also be understood that the spring 25 has two helical portions spaced from each other by a distance which corresponds substantially to the width of the central part of the lever 23, and which are also crossed by the notched pin 45. The two helical portions of the spring 25 are connected to each other by a bent intermediate portion (not visible) which draws a "U" shape. In addition, the spring 25 also comprises two straight end portions which extend parallel to one another and transversely to the axis of the helical portions. Still referring to FIGS. 6 and 7, it can be understood that the spring 25 is mounted so as to overlap the lever 23, its two end portions being respectively wedged on the two lateral supports 49a, 49b. It will also be understood that, when the spring 25 is mounted on the lever 23, its intermediate portion in the shape of a "U" is arranged to come into abutment against the interior side of a wall portion constituting the upper face of the slide 20. It will be understood that the reaction force exerted by the wall portion on the U-shaped portion of the spring 25 is transmitted to the lever 23 via the end portions of the spring, so that the curved end 27 of the lever is biased towards of the upper face 29 of the external part 5, through the opening formed by the housing 51.
Les figures 8A et 8B sont deux vues en coupe transversale selon le plan E-E de la figure 6, et qui montrent le dispositif de réglage fin dans deux configurations associées respectivement à la longueur de base et à la longueur de mise à l'aise du bracelet. On peut observer tout d'abord que les figures 8A et 8B montrent également le maillon d'extrémité 63 du brin de bracelet 1 1 (figures 1A, 1 B, 2A et 2B), et on peut voir également que le coulisseau 20 du dispositif de réglage fin et le maillon d'extrémité 63 sont articulés l'un sur l'autre. Conformément au mode de réalisation illustré, le coulisseau 20 comporte une partie principale agencée pour s’insérer entre les deux faces latérales 31 a, 31 b de la partie externe (figure 6), et une partie de liaison (référencée 60) plus étroite. L'articulation entre le maillon d'extrémité 63 et le coulisseau 20 est réalisée de manière classique au moyen d’une goupille 65 et d’un tube (non représenté) qui sont insérés dans un perçage transversal 61 que présente la partie de liaison 60 du coulisseau Figures 8A and 8B are two cross-sectional views along the plane EE of Figure 6, and which show the fine adjustment device in two configurations associated respectively with the base length and the length of putting the bracelet in comfort . We can first observe that Figures 8A and 8B also show the end link 63 of the bracelet strand 1 1 (FIGS. 1A, 1 B, 2A and 2B), and it can also be seen that the slide 20 of the fine adjustment device and the end link 63 are articulated l 'one over the other. According to the illustrated embodiment, the slide 20 has a main part arranged to be inserted between the two lateral faces 31 a, 31 b of the external part (FIG. 6), and a narrower connecting part (referenced 60). The articulation between the end link 63 and the slide 20 is produced in a conventional manner by means of a pin 65 and a tube (not shown) which are inserted in a transverse bore 61 which has the connecting part 60 of the slide
En se référant à nouveau aux figures 4A, 4B, 5A, 5B, 5C et 6, on peut voir que la partie interne comporte encore une butée auxiliaire. La butée auxiliaire est essentiellement formée d’une plaque rectangulaire 55 dont l’épaisseur avoisine celle de la face supérieure 29 de la partie externe, et de deux bras de fixation 57a, 57b (figure 6) agencés perpendiculairement à la plaque et présentant chacun un trou traversant. Comme le montrent les figures 4A et 4B, la plaque rectangulaire 55 est posée sur la face supérieure du coulisseau 20 et les deux bras de fixation 57a, 57b pénètrent dans le logement 21 par une ouverture dans la face supérieur du coulisseau 20. On peut voir dans la figure 6 que les extrémités des bras de fixation viennent se loger chacune dans un espace existant entre une des portions hélicoïdales du ressort 25 et une des deux parois latérales du logement 21 . On peut voir en outre que la goupille 45 passe à travers les deux trous traversants, de sorte que la butée auxiliaire 55 est maintenue en place sur le coulisseau grâce à la goupille et aux deux bras de fixation 57a, 57b. En se référant notamment aux figures 4A et 4B ou à la figure 1 B, on peut voir que la largeur de l’échancrure 59 de la face supérieure 29 de la partie externe est adaptée pour permettre de recevoir la plaque rectangulaire 55 constituant la butée auxiliaire. Dans ces conditions, on comprendra que lorsqu’on fait coulisser la partie interne dans la partie externe, en direction du bord de fermeture 19a, la plaque rectangulaire 55 s’insère de plus en plus profondément dans l’échancrure 59 et vient finalement buter contre le fond de cette dernière, de sorte que la partie interne n’a pas la possibilité de sortir complètement de la partie externe. On comprendra donc que, conformément au mode de réalisation qui fait l'objet du présent exemple, pour désassembler la partie interne de la partie externe, il faut d’abord retirer la goupille 45 de manière à libérer les deux bras de fixation 57a,Referring again to FIGS. 4A, 4B, 5A, 5B, 5C and 6, it can be seen that the internal part still has an auxiliary stop. The auxiliary stop is essentially formed by a rectangular plate 55 whose thickness is close to that of the upper face 29 of the external part, and by two fixing arms 57a, 57b (FIG. 6) arranged perpendicular to the plate and each having a through hole. As shown in FIGS. 4A and 4B, the rectangular plate 55 is placed on the upper face of the slide 20 and the two fixing arms 57a, 57b enter the housing 21 through an opening in the upper face of the slide 20. It can be seen in FIG. 6 that the ends of the fixing arms are each housed in a space existing between one of the helical portions of the spring 25 and one of the two side walls of the housing 21. It can also be seen that the pin 45 passes through the two through holes, so that the auxiliary stop 55 is held in place on the slide thanks to the pin and the two fixing arms 57a, 57b. With particular reference to FIGS. 4A and 4B or to FIG. 1B, it can be seen that the width of the notch 59 on the upper face 29 of the external part is adapted to allow the rectangular plate 55 constituting the auxiliary stop to be received . Under these conditions, it will be understood that when the inner part is slid in the outer part, towards the closing edge 19a, the rectangular plate 55 is inserted more and more deeply into the notch 59 and finally abuts against the bottom of the latter, so that the internal part does not have the possibility of completely leaving the external part. It will therefore be understood that, in accordance with the embodiment which is the subject of the present example, to disassemble the internal part from the external part, it is first necessary to remove the pin 45 so as to release the two fixing arms 57a,
57b de la butée auxiliaire. Une fois les bras fixation libérés, il est possible de séparer la plaque rectangulaire 55 du coulisseau 20, de façon à permettre finalement de retirer la partie interne de la partie externe. 57b of the auxiliary stop. Once the fixing arms are released, it is possible to separate the rectangular plate 55 from the slide 20, so as to finally allow the internal part to be removed from the external part.
Comme déjà mentionné, la partie externe du dispositif de réglage fin est articulée sur une des lames pivotantes du fermoir, alors que la partie interne du dispositif est, pour sa part, attachée par sa partie de liaison 60 à un brin du bracelet. On peut donc comprendre, en se référant notamment aux figures 8A et 8B, que la longueur du bracelet 1 diminue lorsqu’on fait coulisser la partie interne dans la partie externe en direction du bord de fermeture 19a, et qu’à l’inverse, la longueur du bracelet augmente lorsqu’on fait coulisser la partie interne du dispositif de réglage fin dans l’autre sens. De plus, la course de la partie interne à l’intérieur de la partie externe est limitée dans les deux sens. Comme le montre la figure 8B, la position occupée par la partie interne relativement à la partie externe lorsque les extrémités arrondies des deux patins 35a et 35b butent contre le fond des alvéoles 33a, 33b correspond à la configuration du dispositif de réglage fin pour laquelle la longueur du bracelet 1 est maximum. Inversement, la position occupée par la partie interne relativement à la partie externe lorsque le bord de la plaque rectangulaire 55 vient buter contre le fond de l’échancrure 59 (figure 1 A) correspond à la configuration du dispositif de réglage fin dans laquelle la longueur du bracelet est minimum. En se référant maintenant également à la figure 5A, on peut voir que, conformément au mode de réalisation qui fait l’objet du présent exemple, la plaque rectangulaire 55 se trouve en butée contre le fond de l’échancrure 59 lorsque l’extrémité recourbée 27 du levier 23 est engagée dans le trou d’immobilisation 37. On comprendra de plus, en se référant simultanément aux figures 4B et 5C, que les deux patins 35a et 35b se trouve en butée contre le fond des alvéoles 33a, 33b lorsque l’extrémité recourbée 27 du levier 23 est engagée dans le trou auxiliaire 39. On peut donc comprendre que, conformément au premier mode de réalisation exemplaire de l'invention, la longueur de base du bracelet correspond à sa longueur minimum, et que la longueur de mise à l’aise correspond à la longueur maximum du bracelet. Conformément au présent exemple, le dispositif de réglage ne dispose donc que de deux configurations stables associées respectivement à deux longueurs de bracelet différentes. As already mentioned, the external part of the fine adjustment device is articulated on one of the pivoting blades of the clasp, while the internal part of the device is, for its part, attached by its connecting part 60 to a strand of the bracelet. It can therefore be understood, with particular reference to FIGS. 8A and 8B, that the length of the bracelet 1 decreases when the internal part is slid in the external part in the direction of the closing edge 19a, and that conversely, the length of the bracelet increases when the internal part of the fine adjustment device is slid in the other direction. In addition, the travel of the internal part inside the external part is limited in both directions. As shown in FIG. 8B, the position occupied by the internal part relative to the external part when the rounded ends of the two pads 35a and 35b abut against the bottom of the cells 33a, 33b corresponds to the configuration of the fine adjustment device for which the length of bracelet 1 is maximum. Conversely, the position occupied by the internal part relative to the external part when the edge of the rectangular plate 55 abuts against the bottom of the notch 59 (FIG. 1 A) corresponds to the configuration of the fine adjustment device in which the length of the bracelet is minimum. Referring now also to FIG. 5A, it can be seen that, in accordance with the embodiment which is the subject of the present example, the rectangular plate 55 is in abutment against the bottom of the notch 59 when the curved end 27 of the lever 23 is engaged in the immobilization hole 37. It will also be understood, by referring simultaneously in FIGS. 4B and 5C, that the two pads 35a and 35b are in abutment against the bottom of the cells 33a, 33b when the curved end 27 of the lever 23 is engaged in the auxiliary hole 39. It can therefore be understood that, in accordance with the first exemplary embodiment of the invention, the base length of the bracelet corresponds to its minimum length, and that the comfortable length corresponds to the maximum length of the bracelet. According to this example, the adjustment device therefore has only two stable configurations associated respectively with two different lengths of bracelet.
Les figures 9A, 9B et 9C sont trois vues en coupe transversale d'un dispositif de réglage fin conforme à un deuxième mode de réalisation de l'invention. Ce deuxième mode de réalisation comporte beaucoup de caractéristiques en commun avec le premier mode de réalisation décrit plus haut en relation avec les figures 1A à 8B. Les éléments du dispositif de réglage fin des figures 9A, 9B et 9C qui sont identiques ou analogues à des éléments du premier mode de réalisation sont désignés par le même numéro de référence augmenté de 100. Figures 9A, 9B and 9C are three cross-sectional views of a fine adjustment device according to a second embodiment of the invention. This second embodiment has many features in common with the first embodiment described above in connection with FIGS. 1A to 8B. The elements of the fine adjustment device of FIGS. 9A, 9B and 9C which are identical or analogous to elements of the first embodiment are designated by the same reference number increased by 100.
On peut considérer que, parmi le nombre limité de caractéristiques qui distinguent le dispositif de réglage fin du présent exemple de celui qui a été décrit en relation avec les figures 1A à 8B, la plus significative est que, conformément au présent exemple, le côté intérieur de la face supérieure 129 de la partie externe du dispositif présente trois trous borgnes (au lieu de deux). On peut donc comprendre que, comme on va le voir plus en détail plus loin, le dispositif de réglage fin du présent exemple possède trois configurations stables associées respectivement à trois longueurs de bracelet différentes. En se référant toujours aux figures 9A, 9B et 9C, on peut voir deux premiers trous borgnes qui ont sensiblement la même profondeur et qui seront appelés ci-après "premier trou d'immobilisation 137a" et "deuxième trou d'immobilisation 137b". On peut voir en outre un troisième trou borgne qui est moins profond et qui sera appelé ci-après "trou auxiliaire 139". Conformément au deuxième mode de réalisation, la première extrémité 127 du levier 123 est agencée pour coopérer sélectivement avec l'un des deux trous d'immobilisation 137a et 137b, ou avec le trou auxiliaire 139, de manière à permettre d'immobiliser la partie interne du dispositif de réglage fin, par rapport à sa partie externe, dans une ou une autre de trois positions relatives associées respectivement à une longueur courte, à une longueur moyenne, et à une longueur longue du bracelet. En se référant maintenant plus particulièrement à la figure 9A, on peut voir que, conformément au mode de réalisation qui fait l'objet du présent exemple, la plaque rectangulaire 155 se trouve en butée contre le fond de l'échancrure 159 lorsque l'extrémité recourbée 127 du levier 123 est engagée dans le premier trou d'immobilisation 137a. On comprendra de plus, que lorsque l'extrémité recourbée 127 du levier 123 est engagée dans le trou auxiliaire 139 (figure 9C), ce sont les deux patins 135a, 135b qui se trouvent en butée contre le fond des alvéoles 133a, 133b. Ainsi, conformément au deuxième mode de réalisation, la configuration du dispositif de réglage fin dans laquelle le levier 123 coopère avec le trou auxiliaire 139 est associée à la longueur maximum du bracelet, et la configuration dans laquelle le levier coopère avec le premier trou d'immobilisation 137a est associée à la longueur minimum du bracelet. Enfin, la configuration du dispositif de réglage fin dans laquelle le levier coopère avec le deuxième trou d'immobilisation 137b est associée à une longueur intermédiaire du bracelet. It can be considered that, among the limited number of characteristics which distinguish the fine adjustment device of the present example from that which has been described in relation to FIGS. 1A to 8B, the most significant is that, in accordance with the present example, the inner side of the upper face 129 of the external part of the device has three blind holes (instead of two). It can therefore be understood that, as will be seen in more detail below, the fine adjustment device of the present example has three stable configurations associated respectively with three different strap lengths. Still referring to FIGS. 9A, 9B and 9C, one can see two first blind holes which have substantially the same depth and which will be called hereinafter "first immobilization hole 137a" and "second immobilization hole 137b". We can also see a third blind hole which is shallower and which will be called hereinafter "auxiliary hole 139". According to the second embodiment, the first end 127 of the lever 123 is arranged to selectively cooperate with one of the two immobilization holes 137a and 137b, or with the auxiliary hole 139, so as to allow the internal part to be immobilized of the fine adjustment device, with respect to its external part, in one or another of three relative positions associated respectively with a short length, with an average length, and with a long length of the bracelet. Referring now more particularly to FIG. 9A, it can be seen that, in accordance with the embodiment which is the subject of the present example, the rectangular plate 155 is in abutment against the bottom of the notch 159 when the end bent 127 of lever 123 is engaged in the first immobilization hole 137a. It will also be understood that when the curved end 127 of the lever 123 is engaged in the auxiliary hole 139 (FIG. 9C), these are the two pads 135a, 135b which are in abutment against the bottom of the cells 133a, 133b. Thus, in accordance with the second embodiment, the configuration of the fine adjustment device in which the lever 123 cooperates with the auxiliary hole 139 is associated with the maximum length of the bracelet, and the configuration in which the lever cooperates with the first hole immobilization 137a is associated with the minimum length of the bracelet. Finally, the configuration of the fine adjustment device in which the lever cooperates with the second immobilization hole 137b is associated with an intermediate length of the bracelet.
Les figures 10A et 10B sont des vues en perspectives semblables à celles des figures 1 A et 1 B du côté extérieur d'un bracelet, le bracelet n’étant pas du même modèle que dans les figures 1A et 1 B, alors que les deux dispositifs de réglage fin sont également conformes au premier mode de réalisation de l’invention. Les figures 10A et 10B illustrent comment le dispositif de réglage fin de l’invention peut être adapté à un autre modèle de bracelet en nécessitant un minimum de modifications. On comprendra en outre que diverses modifications et/ou améliorations évidentes pour un homme du métier peuvent être apportées au mode de réalisation qui fait l’objet de la présente description sans sortir du cadre de la présente invention définie par les revendications annexées. FIGS. 10A and 10B are perspective views similar to those of FIGS. 1A and 1B from the outside of a bracelet, the bracelet not being of the same model as in FIGS. 1A and 1B, while the two fine adjustment devices also conform to the first embodiment of the invention. FIGS. 10A and 10B illustrate how the fine adjustment device of the invention can be adapted to another model of bracelet, requiring a minimum of modifications. It will further be understood that various modifications and / or improvements obvious to a person skilled in the art can be made to the embodiment which is the subject of the present description without departing from the scope of the present invention defined by the appended claims.

Claims

REVENDICATIONS
1. Dispositif de réglage fin (15, 17) de la longueur d’un bracelet (1 ) destiné à être inséré entre deux éléments du bracelet et comprenant une partie externe (5) agencée pour être attachée à l’un des deux éléments, une partie interne agencée pour être attachée à l’autre élément et pour coulisser dans la partie externe parallèlement à la direction longitudinale du bracelet (1 ) de façon à faire varier la longueur du bracelet, et des moyens de butées (33a, 35a, 33b, 35b ; 135b) agencés pour limiter la course de la partie interne relativement à la partie externe (5) de sorte que le bracelet ne puisse pas s’allonger au-delà d’une longueur maximum ; caractérisé en ce que la partie externe comporte en outre une paroi (29) présentant au moins un trou d’immobilisation (37 ; 137a, 137b) sur son côté intérieur, la partie interne comportant des moyens d’accrochage (23, 27 ; 123, 127) agencés pour coopérer avec ledit au moins un trou d’immobilisation (37 ; 137a, 137b) de manière à immobiliser la partie interne par rapport à la partie externe dans au moins une position relative conférant au bracelet une longueur déterminée, en ce que les moyens d’accrochage comprennent une première extrémité (27 ; 127) agencée pour coopérer avec ledit au moins un trou d’immobilisation (37 ; 137a, 137b) pour solidariser la partie interne et la partie externe, et en ce que la partie interne comporte un organe de commande (53 ; 153) actionnable manuellement pour désolidariser la partie interne de la partie externe. 1. Fine adjustment device (15, 17) for the length of a bracelet (1) intended to be inserted between two elements of the bracelet and comprising an external part (5) arranged to be attached to one of the two elements, an internal part arranged to be attached to the other element and to slide in the external part parallel to the longitudinal direction of the bracelet (1) so as to vary the length of the bracelet, and stop means (33a, 35a, 33b , 35b; 135b) arranged to limit the stroke of the internal part relative to the external part (5) so that the bracelet cannot extend beyond a maximum length; characterized in that the external part also comprises a wall (29) having at least one immobilization hole (37; 137a, 137b) on its internal side, the internal part comprising hooking means (23, 27; 123 , 127) arranged to cooperate with said at least one immobilization hole (37; 137a, 137b) so as to immobilize the internal part with respect to the external part in at least one relative position giving the bracelet a determined length, in that the hooking means comprise a first end (27; 127) arranged to cooperate with said at least one immobilization hole (37; 137a, 137b) to secure the internal part and the external part, and in that the part internal comprises a control member (53; 153) operable manually to separate the internal part from the external part.
2. Dispositif de réglage fin selon la revendication 1 , caractérisé en ce que l’organe de commande est agencé pour être actionné par pression d’un doigt. 2. Fine adjustment device according to claim 1, characterized in that the control member is arranged to be actuated by pressure of a finger.
3. Dispositif de réglage fin selon la revendication 1 ou 2, caractérisé en ce que la paroi de la partie externe (5) comporte une face supérieure (29 ; 129) dans laquelle est formée ledit au moins un trou d’immobilisation (37 ; 137a, 137b), et en ce que les moyens d’accrochage comportent un levier (23 ; 123) agencé pour pivoter dans un plan qui est normal à la face supérieure et qui contient l’axe longitudinal du bracelet (1 ) et un ressort (25) agencé pour rappeler une première extrémité du levier en direction de la paroi (29 ; 129) de la partie externe (5) de façon à amener le levier (23 ; 123) à coopérer avec ledit au moins un trou d’immobilisation (37 ; 137a, 137b), ladite première extrémité du levier constituant la première extrémité des moyens d’accrochage. 3. Fine adjustment device according to claim 1 or 2, characterized in that the wall of the external part (5) has an upper face (29; 129) in which said at least one immobilization hole (37; 137a, 137b), and in that the hooking means comprise a lever (23; 123) arranged to pivot in a plane which is normal to the upper face and which contains the longitudinal axis of the bracelet (1) and a spring (25) arranged to return a first end of the lever in the direction of the wall (29; 129) of the external part (5) so as to cause the lever (23; 123) to cooperate with said at least one immobilization hole (37; 137a, 137b), said first end of the lever constituting the first end of the hooking means.
4. Dispositif de réglage fin selon la revendication 3, caractérisé en ce que l’organe de commande est constitué par une deuxième extrémité (53 ; 153) du levier (23 ; 123) opposée à la première extrémité (27 ; 127). 4. Fine adjustment device according to claim 3, characterized in that the control member consists of a second end (53; 153) of the lever (23; 123) opposite the first end (27; 127).
5. Dispositif de réglage fin selon la revendication 4, caractérisé en ce qu'il comporte un côté inférieur, et en ce que le levier (23 ; 123) est agencé dans un logement (21 ; 121 ) de la partie interne de manière à dépasser du côté inférieur lorsque la première extrémité (27 ; 127) du levier (23 ; 123) est engagée dans ledit au moins un trou d’immobilisation (37 ; 137a, 137b). 5. Fine adjustment device according to claim 4, characterized in that it comprises a lower side, and in that the lever (23; 123) is arranged in a housing (21; 121) of the internal part so as to protrude from the lower side when the first end (27; 127) of the lever (23; 123) is engaged in said at least one immobilization hole (37; 137a, 137b).
6. Dispositif de réglage fin selon l’une quelconque des revendications précédentes, caractérisé en ce que la première extrémité (27 ; 127) du levier (23 ; 123) est recourbée de sorte qu'elle présente un angle de dépouille négatif. 6. Fine adjustment device according to any one of the preceding claims, characterized in that the first end (27; 127) of the lever (23; 123) is bent so that it has a negative draft angle.
7. Dispositif de réglage fin selon l’une quelconque des revendications précédentes, le bracelet (1 ) étant pourvu d'un fermoir (3) de type déployant comportant au moins un capot d'ouverture (5, 7) et de fermeture, et les deux éléments du bracelet (1 ) entre lesquels le dispositif de réglage fin est destiné à être inséré étant constitués respectivement par le fermoir (3) et par une extrémité (63 ; 163) d'un brin (1 1 ) du bracelet (1 ), caractérisé en ce que le dispositif de réglage fin comporte des moyens de fixation (60, 61 , 65, 67 ; 161 , 165) agencés pour attacher l'extrémité (63 ; 163) du brin (1 1 ) à la partie interne, et en ce que la partie externe (5) du dispositif de réglage fin est constituée par le capot d'ouverture et de fermeture du fermoir (3).7. A fine adjustment device according to any one of the preceding claims, the bracelet (1) being provided with a clasp (3) of the deploying type comprising at least one opening (5, 7) and closing cover, and the two elements of the bracelet (1) between which the fine adjustment device is intended to be inserted, being constituted respectively by the clasp (3) and by one end (63; 163) of a strand (1 1) of the bracelet (1), characterized in that the fine adjustment device comprises fixing means (60, 61, 65, 67; 161, 165) arranged to attach the end (63; 163) of the strand (1 1) to the internal part, and in that the external part (5) of the fine adjustment device is constituted by the opening and closing cover of the clasp (3).
8. Dispositif de réglage fin selon l’une quelconque des revendications précédentes, caractérisé en ce que la partie interne comporte une butée auxiliaire (55 ; 155) agencée pour coopérer avec un bord (59 ;8. Fine adjustment device according to any one of the preceding claims, characterized in that the internal part comprises an auxiliary stop (55; 155) arranged to cooperate with an edge (59;
159) de la partie externe de manière à limiter la course de la partie interne relativement à la partie externe de façon que le bracelet (1 ) ne puisse pas se raccourcir au-dessous d’une longueur minimum. 159) of the external part so as to limit the stroke of the internal part relative to the external part so that the bracelet (1) cannot be shortened below a minimum length.
9. Dispositif de réglage fin selon la revendication 8, caractérisé en ce que la partie interne présente deux perçages (41 a, 41 b) agencés de part et d’autre et en regard l’un de l’autre, et en ce que la butée auxiliaire (55 ; 155) comporte au moins un bras de fixation (57a, 57b) muni d’un trou traversant agencé coaxialement entre les deux perçages (41 a, 41 b), la butée auxiliaire (55 ; 155) étant fixée à la partie interne au moyen d’une goupille (45 ; 145) orientée perpendiculairement à la longueur du bracelet (1 ) et insérée à travers le trou traversant et les deux perçages. 9. Fine adjustment device according to claim 8, characterized in that the internal part has two holes (41 a, 41 b) arranged on either side and facing each other, and in that the auxiliary stop (55; 155) comprises at least one fixing arm (57a, 57b) provided with a through hole arranged coaxially between the two bores (41 a, 41 b), the auxiliary stop (55; 155) being fixed to the internal part by means of a pin (45; 145) oriented perpendicular to the length of the bracelet (1) and inserted through the through hole and the two holes.
10. Dispositif de réglage fin selon la revendication 8 ou 9, caractérisé en ce que, lorsque la butée auxiliaire (55 ; 155) se trouve en appui contre un bord (59 ; 159) de la partie externe, les positions relatives de la partie interne et de la partie externe sont telles que la première extrémité (27 ; 127) du levier (23 ; 123) coopère avec un des dits au moins un trou d’immobilisation (37 ; 137a, 137b) pour immobiliser la partie interne relativement à la partie externe, lesdites positions relatives conférant au bracelet (1 ) une longueur déterminée égale à la longueur minimum. 10. Fine adjustment device according to claim 8 or 9, characterized in that, when the auxiliary stop (55; 155) is in abutment against an edge (59; 159) of the external part, the relative positions of the part internal and external part are such that the first end (27; 127) of the lever (23; 123) cooperates with one of said at least one immobilization hole (37; 137a, 137b) to immobilize the internal part relative to the external part, said positions relative giving the bracelet (1) a determined length equal to the minimum length.
1 1. Dispositif de réglage fin selon l’une quelconque des revendications précédentes, caractérisé en ce que le côté intérieur de la paroi (29 ; 129) de la partie externe présente un trou auxiliaire (39 ; 139), et en ce que, lorsque les moyens de butée (33a, 35a, 33b, 35b ; 135b) sont en position de coopérer pour empêcher le bracelet (1 ) de s’allonger davantage, les positions relatives de la partie interne et de la partie externe sont telles que la première extrémité (27 ; 127) du levier (23 ; 123) coopère avec le trou auxiliaire (39 ; 139) pour immobiliser la partie interne relativement à la partie externe, lesdites positions relative conférant au bracelet (1 ) la longueur maximum. 1 1. Fine adjustment device according to any one of the preceding claims, characterized in that the internal side of the wall (29; 129) of the external part has an auxiliary hole (39; 139), and in that, when the abutment means (33a, 35a, 33b, 35b; 135b) are in a position to cooperate to prevent the bracelet (1) from lengthening further, the relative positions of the internal part and the external part are such that the first end (27; 127) of the lever (23; 123) cooperates with the auxiliary hole (39; 139) to immobilize the internal part relative to the external part, said relative positions giving the bracelet (1) the maximum length.
12. Dispositif de réglage fin selon l’une quelconque des revendications précédentes, caractérisé en ce que la partie externe (5) possède un profil en "U" inversé, sa section transversale étant sensiblement uniforme. 12. Fine adjustment device according to any one of the preceding claims, characterized in that the external part (5) has an inverted "U" profile, its cross section being substantially uniform.
13. Dispositif de réglage fin selon la revendication 12, caractérisé en ce que la paroi de la partie externe (5) comporte une face supérieure (29 ; 129) dans laquelle est formée ledit au moins un trou d’immobilisation (37 ; 137a, 137b) et deux faces latérales (31 a, 31 b) opposées, les faces supérieure et latérales s'étendant dans des plans parallèles à la direction longitudinale du bracelet (1 ). 13. Fine adjustment device according to claim 12, characterized in that the wall of the external part (5) has an upper face (29; 129) in which said at least one immobilization hole (37; 137a, 137b) and two opposite lateral faces (31 a, 31 b), the upper and lateral faces extending in planes parallel to the longitudinal direction of the bracelet (1).
14. Dispositif de réglage fin selon la revendication 13, caractérisé en ce que la partie interne est munie de deux patins latéraux (35a, 35b ; 135b) agencés de part et d'autre de façon à pouvoir coopérer avec deux rainures de guidage (33a, 33b) formées à l'intérieur des deux faces latérales 31 a, 31 b) de la paroi de la partie externe (5). 14. Fine adjustment device according to claim 13, characterized in that the internal part is provided with two lateral pads (35a, 35b; 135b) arranged on either side so as to be able to cooperate with two guide grooves (33a , 33b) formed inside the two lateral faces 31 a, 31 b) of the wall of the external part (5).
15. Dispositif de réglage fin selon l’une quelconque des revendications précédentes, caractérisé en ce que le bracelet (1 ) est un bracelet de montre. 15. Fine adjustment device according to any one of the preceding claims, characterized in that the strap (1) is a watch strap.
16. Dispositif de réglage fin selon l’une quelconque des revendications précédentes, caractérisé en ce que ledit au moins un trou d’immobilisation (37 ; 137a, 137b) est un trou borgne. 16. Fine adjustment device according to any one of the preceding claims, characterized in that said at least one immobilization hole (37; 137a, 137b) is a blind hole.
17. Dispositif de réglage fin selon la revendication 15, caractérisé en ce que ledit au moins un trou d’immobilisation (37 ; 137a, 137b) et la première extrémité (27 ; 127) du levier (23 ; 123) sont conformés de manière à ce que la partie interne soit positionnée sans jeu longitudinal relativement à la partie externe (5). 17. Fine adjustment device according to claim 15, characterized in that said at least one immobilization hole (37; 137a, 137b) and the first end (27; 127) of the lever (23; 123) are shaped so the internal part is positioned without longitudinal play relative to the external part (5).
18. Dispositif de réglage fin de la longueur d’un bracelet (1 ) selon l’une quelconque des revendications précédentes, caractérisé en ce que le bracelet et un bracelet à maillons et en ce que les dimensions du dispositif de réglage fin sont sensiblement les mêmes que les dimensions des maillons du bracelet. 18. Fine adjustment device for the length of a bracelet (1) according to any one of the preceding claims, characterized in that the bracelet and a link bracelet and in that the dimensions of the fine adjustment device are substantially the same as the dimensions of the bracelet links.
19. Bracelet comportant au moins un dispositif de réglage fin conforme à l’une des revendications 1 à 18. 19. Bracelet comprising at least one fine adjustment device according to one of claims 1 to 18.
20. Bracelet selon la revendication 19, caractérisé en ce qu’il comporte deux dispositifs de réglage fin. 20. Bracelet according to claim 19, characterized in that it comprises two fine adjustment devices.
EP19831914.7A 2018-12-10 2019-12-10 Device for finely adjusting the length of a band and band comprising at least one device of this type Pending EP3893688A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP18211364 2018-12-10
PCT/IB2019/060611 WO2020121191A1 (en) 2018-12-10 2019-12-10 Device for finely adjusting the length of a band and band comprising at least one device of this type

Publications (1)

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EP3893688A1 true EP3893688A1 (en) 2021-10-20

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EP19831914.7A Pending EP3893688A1 (en) 2018-12-10 2019-12-10 Device for finely adjusting the length of a band and band comprising at least one device of this type

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US (1) US11627785B2 (en)
EP (1) EP3893688A1 (en)
JP (1) JP2022513770A (en)
CN (1) CN113163913B (en)
CH (1) CH717048B1 (en)
WO (1) WO2020121191A1 (en)

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CN113163913A (en) 2021-07-23
US20220022611A1 (en) 2022-01-27
CN113163913B (en) 2023-04-14
JP2022513770A (en) 2022-02-09
WO2020121191A1 (en) 2020-06-18
US11627785B2 (en) 2023-04-18
CH717048B1 (en) 2023-06-30

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