阅读说明：本技术 可调节的拧紧表冠 (Adjustable tightening crown ) 是由 R·蒂里 R·玛柯斯 于 2020-10-09 设计创作，主要内容包括：一种用于表壳(100)的可调节的拧紧表冠(200),包括子组件(20),该子组件包括包含图案(19)并载有轴向固定的空心轴(2)的操纵体(1),该固定的空心轴包括第一螺纹(21),并且包括管(7),管(7)可轴向插入表壳壳体(90)中并包括角分度装置(75),该角分度装置布置成与安装在该管(7)上的插入件(4)所包括的互补角分度装置(75)配合,以确定冠体(1)相对于管(7)的相对于轴向方向(D)的角取向,所述子组件和所述管轴向移动,插入件(4)包括第一螺纹(41),该第一螺纹布置成与固定的空心轴(2)的第一螺纹(21)配合,以用于将冠体(1)拧入管(7)中。(An adjustable tightening crown (200) for a watch case (100) comprising a subassembly (20), the subassembly comprises a handling body (1) containing a pattern (19) and carrying an axially fixed hollow shaft (2), the fixed hollow shaft comprises a first thread (21) and comprises a tube (7), the tube (7) being axially insertable in a watch case (90) and comprising an angular indexing device (75), arranged to cooperate with complementary angular indexing means (75) comprised by an insert (4) mounted on the tube (7), to determine the angular orientation of the crown (1) with respect to the tube (7) with respect to the axial direction (D), the subassembly and the pipe being axially movable, the insert (4) comprising a first thread (41), the first thread is arranged to cooperate with a first thread (21) of the fixed hollow shaft (2) for screwing the crown body (1) into the tube (7).)

1. An adjustable tightening crown (200) for a watch case (100), comprising a middle part (9) having at least one casing (90) which passes all the way through for receiving the adjustable tightening crown (200), the adjustable tightening crown (200) being arranged to cooperate with the casing (90) and to insert it in a sealed manner, the adjustable tightening crown (200) comprising a pattern (19) on or in the vicinity of an end face (18) and, on the one hand, a first subassembly (20) comprising a crown body (1) which can be manipulated by a user and which comprises the pattern (19) and, on the other hand, a tube (7) which is arranged to be screwed or driven into the casing (90) in the axial direction (D), the first subassembly and the tube being axially movable relative to each other in the axial direction (D), wherein the first subassembly (20) comprises a fixed hollow shaft (2) rigidly connected to the crown body (1) extending in the axial direction (D) and comprising first threads (21), and wherein the tube (7) comprises angular indexing means (75) arranged to cooperate with complementary angular indexing means (45) comprised by an insert (4) mounted on the tube (7) to determine the angular orientation of the crown body (1) with respect to the axial direction (D) with respect to the tube (7), the insert (4) comprising first threads (41), the first threads (41) being arranged to cooperate with the threads (21) of the fixed hollow shaft (2) for screwing the crown body (1) into the tube (7), and wherein the tube (7) enclosing the insert (4) comprises at least two portions (71; 72), -said at least two parts being coaxially mounted constrained to rotate together in said axial direction (D), -a first lower part (71) of said at least two parts comprising fastening means (79) arranged to screw it in or drive it into said housing (90) in said axial direction (D), and-a second upper part (72) of said at least two parts comprising said angular indexing means (75), characterized in that said first lower part (71) comprises a pipe thread (77) arranged to cooperate with a pipe thread (78) comprised by said second upper part (72), and/or in that said first lower part (71) and said second upper part (72) are arranged to close and compress at least one second sealing joint (8).

2. The adjustable tightening crown (200) according to claim 1, characterized in that the first lower portion (71) comprises a pipe thread (77), the pipe thread (77) being arranged to cooperate with a pipe thread (78) comprised by the second upper portion (72).

3. The adjustable tightening crown (200) according to claim 1, characterized in that the first lower portion (71) and the second upper portion (72) are arranged to close and compress at least one second sealing joint (8).

4. Adjustable tightening crown (200) according to claim 1, characterized in that said first subassembly (20) cannot be disassembled and comprises a mobile hollow shaft (6) comprising fastening means (31) arranged for fastening said adjustable tightening crown (200) to a control member housed in one of said watchcases (100), said mobile hollow shaft (6) being axially mobile in said axial direction (D) against elastic return means (3) in a chamber (12) defined on the one hand by said fixed hollow shaft (2) and on the other hand by said crown body (1) or by a trunnion rigidly connected to said crown body (1), and in which chamber (12) said mobile hollow shaft (6) is arranged to be captured.

5. The adjustable tightening crown (200) according to claim 1, characterized in that the angular indexing means (75) and the complementary angular indexing means (45) comprise complementary grooves.

6. Adjustable tightening crown (200) according to claim 1, characterized in that the crown body (1) comprises at least one housing (91) for receiving at least one sealing joint (5) arranged to cooperate with a joint bearing surface (93) comprised by the tube (7) arranged to compress the sealing joint (5) in the fully tightened position of the first subassembly (20) in the tube (7).

7. Adjustable tightening crown (200) according to claim 1, characterized in that said insert (4) is arranged to be fastened in an irreversible manner to said tube (7) or, when said tube (7) is composed of a plurality of parts, to the component parts of said tube (7).

8. Adjustable tightening crown (200) according to claim 1, characterized in that the insert (4) is arranged to be captured between the first lower portion (71) and the second upper portion (72).

9. Adjustable tightening crown (200) according to claim 1, characterized in that said first sub-assembly (20) is fastened to said crown body (1) in an irreversible manner.

10. A watch case (100) comprising at least one adjustable tightening crown (200) according to claim 1 and comprising a middle part (9) having at least one casing (90) which extends all the way through for receiving one of said adjustable tightening crowns (200).

11. A watch (1000) comprising the watch case (100) according to claim 10.

12. A method for mounting the adjustable tightening crown (200) according to claim 1 in the watch case according to claim 10, comprising the steps of:

-preparing said first subassembly (20) and fastening said fixed hollow shaft (2) to said crown body (1);

-inserting the insert (4) onto the tube (7) in a first angular position between the angular indexing means (75) and the complementary angular indexing means (45);

-screwing the insert (4) onto the fixed tube (2);

-preparing said tube (7) for fastening it in one of said housings (90);

-inserting the tube (7) axially in the axial direction (D) into the housing (90) of the intermediate portion (9) and fastening it to the intermediate portion (9) by screwing or driving up to a screwing or driving stop position, respectively;

-measuring the difference in the angular orientation of the pattern (19) with respect to the desired position and determining the number of steps for correcting the graduation;

-disassembling said adjustable tightening crown (200) to enter said angular indexing device (75) and said complementary angular indexing device (45) and to change their relative angular orientation according to the measurement results;

-inserting each sealing joint in its place;

-performing a fixing or closing of the insert (4) in the tube (7) and fixing one of all the parts comprised by the tube (7) with respect to the other except for the insert (4).

13. The mounting method according to claim 12, characterized in that during the preparation of the first subassembly (20), the fixed hollow shaft (2) is irreversibly fastened to the crown body (1).

14. The mounting method according to claim 12, characterized in that during the fixing of the insert (4), the insert is fastened in an irreversible manner to the tube (7) or to a component of the tube (7).

15. The mounting method according to claim 12, characterized in that during said fixing of one part with respect to the other of all the parts that the tube (7) comprises, except for the insert (4), they are fastened to each other in an irreversible manner.

Technical Field

The invention relates to an adjustable tightening crown for a watch case comprising a middle part having at least one housing running all the way through for receiving said adjustable tightening crown, which is arranged to cooperate with said housing and to be inserted in a sealed manner, said adjustable tightening crown comprising a pattern on or near an end face, said adjustable tightening crown comprising, on the one hand, a subassembly comprising a crown body that can be manipulated by a user and that comprises said pattern, and on the other hand, a tube arranged to be screwed or driven into said housing in said axial direction, said subassembly and said tube being axially movable in relation to each other in the axial direction.

The invention also relates to a watch case comprising a middle part with at least one housing which extends all the way through for receiving such an adjustably screwed crown.

The invention also relates to a timepiece, in particular a wristwatch, comprising such a case.

The invention also relates to a method for assembling such an adjustable tightening crown.

The invention also relates to a method for mounting such an adjustable tightening crown on a watch case.

Background

Tightening of the crown is commonly used for the purpose of equipping the watch for improving its seal at the passage of a control member, such as a spring or a lever. This type of crown is peculiar in that it is able to occupy an untightened position in which the watch can be wound, set, adjusted or otherwise, and a tightened position in which the crown is tightened and blocked on a tube driven or screwed into the middle of the case to compress the sealing joint, thus improving the tightness of the watch. The tightening position is therefore a position corresponding to the normal position when wearing the watch, and this position is generally more or less the same, to give or bring about wear of the sealing joint.

The manufacture and mounting of these screw-on crowns on watch cases is well known. However, the methods for mounting these crowns are not suitable for tightening crowns with an imprint or pattern, such as a logo, trademark or similar marking or projection, on the end face thereof, or for crowns that are not of rotary shape, whereas it is desirable for the user, or at least after-market services, to be able to adjust the angular degree of such crowns in the tightened position according to the particular orientation desired.

In fact, the known mounting methods do not generally allow to bring the crown into a determined orientation with respect to the watch case after screwing, which may be detrimental to the aesthetic appearance of the watch case. This situation is of course unacceptable when these crowns are provided on luxury and high quality products.

Document EP2182417 in the name of PIBOR ISO SA describes a screw-on crown intended to be placed on a watch case in which a timepiece movement is placed. The crown comprises a head, a first tube intended to be kinematically connected with the movement, rigidly connected to the head and having a thread on its external profile, and a second tube arranged to house the first tube, the second tube comprising, on the first tube side, an internal thread intended to cooperate with the thread of the first tube. The front surface of the head is provided with a logo with a non-circular geometry. The second tube comprises a first indexing means on the shell side. And the crown further comprises a third tube formed by a first portion intended to ensure its permanent fastening to the case and by a second portion directed towards the head, the third tube being arranged to house the first and second tubes and comprising second indexing means cooperating with the first indexing means of the second tube, and a blocking member arranged to block the translational movement of the second tube with respect to the third tube.

Disclosure of Invention

The object of the present invention is, inter alia, to overcome various disadvantages of these known techniques.

More precisely, the object of the present invention is to provide an adjustable tightening crown suitable for any watchcase comprising a crown shell for its orientation made according to a simple and economical structure.

It is also an object of the present invention to provide an adjustable tightening crown which is more reliable than existing crowns.

The invention therefore relates to an adjustable tightening crown according to claim 1.

The invention also relates to a watch case comprising a middle part with at least one housing which extends all the way through for receiving such an adjustably screwed crown.

The invention also relates to a timepiece, in particular a wristwatch, comprising such a case.

The invention also relates to a method for assembling such an adjustable tightening crown.

The invention also relates to a method for mounting such an adjustable tightening crown on a watch case.

Drawings

Other characteristics and advantages of the invention will become clearer from reading the following description of a specific embodiment thereof, given as a simple illustrative and non-limiting example, and of the accompanying drawings, in which:

figure 1 is a longitudinal section of an adjustable tightening crown according to a first alternative of the invention, in which the crown comprises a tube arranged to cooperate with a watchcase and an insert designed to be welded to each other after angular indexing;

fig. 2 is a detail of the crown of fig. 1 and shows, on the one hand, the cooperation between the tube and the insert in terms of angular indexing by means of the slot and, on the other hand, the cooperation in terms of angular indexing by means of a threaded connection between the insert and a fixed hollow shaft carried by a crown body that can be manipulated by a user and that carries the pattern visible in fig. 1;

fig. 3 to 6 show the assembly and mounting sequence of this first crown alternative according to the invention:

FIG. 3 illustrates the assembly of all parts, and the determination of the angular orientation of the insert in the tube;

FIG. 4 shows laser welding between the insert and the tube in this indexed position;

FIG. 5 illustrates the reassembly of the components;

FIG. 6 shows the mounting of the crown assembly in the middle;

fig. 7 shows a second alternative in a manner similar to fig. 1, in which the tube comprises two parts which are connected end to end and screwed to each other, while enclosing a slotted insert which cooperates in angular indexing with the part of the tube furthest from the intermediate part;

fig. 8 shows a detail of this second alternative in a similar manner to fig. 2;

fig. 9 to 11 show the assembly and installation sequence of this second alternative:

FIG. 9 illustrates the assembly of all parts, and the determination of the angular orientation of the insert in the tube;

FIG. 10 shows the unthreading of an upper tube including a slot for changing the angular position of the insert;

FIG. 11 shows the screwing and gluing of the upper tube to the lower tube, and the gluing therebetween, after the desired angular degree;

figure 12 is a block diagram showing a watch comprising a watch case provided with an adjustable tightening crown according to the invention.

Detailed Description

The invention relates to an adjustable tightening crown 200 for a watch case 100. The watch case 100 generally comprises a middle portion 9 through which at least one case 90 extends for receiving an adjustable screw-on crown 200.

The adjustable tightening crown 200 is arranged to cooperate with the case 90 and insert it in a sealed manner. Adjustable tightening crown 200 includes pattern 19 on or near face 18.

Such adjustable tightening crown 200 comprises, on the one hand, a subassembly 20 comprising a crown body 1 that can be manipulated by a user and comprises a pattern 19, and, on the other hand, a tube 7, said subassembly and said tube being axially movable with respect to each other in an axial direction D. The tube 7 is arranged to be screwed or driven into the housing 90 in the axial direction D.

According to the invention, the subassembly 20 comprises a fixed hollow shaft 2 rigidly connected to the crown body 1, extending in the axial direction D and comprising a first thread 21. The tube 7 comprises angular indexing means 75 arranged to cooperate with complementary angular indexing means 45 comprised by the insert 4 and mounted on the tube 7 to determine the angular orientation of the crown 1 with respect to the tube 7 with respect to the axial direction D. The insert 4 comprises a first internal thread 41, which first internal thread 41 is arranged to cooperate with the thread 21 of the fixed hollow shaft 2 for screwing the crown body 1 into the tube 7.

More specifically, first subassembly 20 comprises a mobile hollow shaft 6 comprising fastening means 31, which fastening means 31 are arranged for fastening adjustable tightening crown 200 to a control member housed in watch case 100. The moving hollow shaft 6 is axially moved in the axial direction D against the elastic return means 3 in a chamber 12, which chamber 12 is defined on the one hand by the fixed hollow shaft 2 and on the other hand by the crown body 1 or by trunnions rigidly connected to the crown body 1, and in which chamber 12 the moving hollow shaft 6 is arranged to be captured.

More specifically, the first subassembly 20 cannot be disassembled, in particular its components rigidly connected by laser welding and/or gluing or the like.

More specifically, the angular indexing device 75 and the complementary angular indexing device 45 comprise complementary slots.

More specifically, crown 1 comprises at least one housing 91 for receiving at least one sealing joint 5 arranged to cooperate with a joint bearing surface 93 comprised by pipe 7, which is arranged to compress sealing joint 5 in the fully tightened position of first subassembly 20 in pipe 7. More specifically, the joint bearing surface 93 is inclined with respect to the axial direction D, and in particular, a tapered direction or the like.

More specifically, when the tube 7 is composed of a plurality of parts, the insert 4 is fastened in an irreversible manner to the tube 7, or to the component parts of the tube 7.

More specifically, the tube 7 of the closure insert 4 comprises at least two coaxial portions in the axial direction D, which are mounted so as to be constrained to rotate together, a first lower portion 71 of which forms a lower tube closest to the middle portion, the first lower portion 71 comprising fastening means 79 arranged for screwing or driving it into the housing 90 in the axial direction D, and a second upper portion 72 of which forms an upper tube furthest from the middle portion, the second upper portion 72 comprising angular indexing means 75.

More specifically, the first lower portion 71 comprises pipe threads 77 arranged to cooperate with pipe threads 78 comprised by the second upper portion 72.

More specifically, the first lower portion 71 and the second upper portion 72 are arranged to close and compress the at least one second sealing joint 8.

More specifically, the insert 4 is arranged to be captured between a first lower portion 71 and a second upper portion 72.

More specifically, first subassembly 20 is fastened to crown body 1 in an irreversible manner, in particular by laser welding and/or gluing or the like.

The invention also relates to a watch case 100 comprising at least one such adjustable tightening crown 200 and comprising a middle part 9 with at least one casing 90 which casing 90 extends all the way through for receiving such adjustable tightening crown 200.

The invention also relates to a timepiece, in particular a wristwatch 1000, comprising such a case 100.

The invention also relates to a method for mounting such adjustable tightening crown 200 onto the middle part 9 of such case 100, comprising the following steps:

preparing the first subassembly 20 and fastening the fixed hollow shaft 2 to the crown 1;

inserting the insert 4 onto the tube 7 in a first angular position between the angular indexing means 75 and the complementary angular indexing means 45;

screwing the insert 4 onto the fixed tube 2;

preparing the tube 7 for fastening it in the housing 90;

inserting the tube 7 axially in the axial direction D into the housing 90 of the intermediate portion 9 and fastening it to the intermediate portion 9 by screwing or driving up to a screwing or driving stop position, respectively;

measuring the difference in angular orientation of the pattern 19 with respect to the desired position and determining the number of steps for correcting the graduation;

disassembling the adjustable tightening crown 200 to enter the angular indexing means 75 and the complementary angular indexing means 45 and to change their relative angular orientation according to the measurement results;

-inserting each sealing joint in its place;

the fixing or closing of the insert 4 in the tube 7 is carried out and all the parts of the outer tube 7, except the insert 4, are fixed one with respect to the other.

More specifically, during the preparation of the first subassembly 20, the fixed hollow shaft 2 is fastened to the crown 1 in an irreversible manner.

More specifically, during the fixing of the insert 4, the insert is fastened in an irreversible manner to the tube 7 or to an integral part of the tube 7.

More specifically, during the fixing of one part with respect to the other of all the parts comprised by the outer tube 7, except for the insert 4, they are fastened to each other in an irreversible manner.