CH708162B1

CH708162B1 - Platinum watch protection.

Info

Publication number: CH708162B1
Application number: CH01119/13A
Authority: CH
Inventors: Villar Ivan; Kaelin Laurent
Original assignee: Eta Sa Mft Horlogère Suisse
Priority date: 2013-06-14
Filing date: 2013-06-14
Publication date: 2017-12-15
Also published as: CH708162A2

Abstract

L’invention concerne un dispositif (1) de protection (1), agencé pour la protection d’une platine (2) de mouvement d’horlogerie (3), ladite platine (2) comportant une surface de réception (4) de dureté superficielle donnée pour la réception en appui d’une surface d’appui complémentaire (51) d’un mobile (5) dudit mouvement (3). Ce dispositif (1) comporte un insert comportant une surface de glissement (7) de dureté superficielle supérieure à ladite dureté superficielle donnée de la platine (2) et l’insert est agencé pour être rapporté sur ou dans cette platine (2) de façon à ce que ladite surface de glissement (7) dudit insert coïncide avec la surface de réception (4) de cette platine (2). L’invention concerne encore un mouvement d’horlogerie (3) comportant une telle platine (2), qui est équipée d’un tel dispositif de protection (1) pour sa protection lors du mouvement dudit mobile (5).The invention relates to a device (1) for protection (1), arranged for the protection of a turntable (2) of clockwork movement (3), said plate (2) having a receiving surface (4) of hardness surface given for receiving in support of a complementary bearing surface (51) of a mobile (5) of said movement (3). This device (1) comprises an insert having a sliding surface (7) of superficial hardness greater than said given surface hardness of the plate (2) and the insert is arranged to be attached to or in this plate (2) so said sliding surface (7) of said insert coincides with the receiving surface (4) of this plate (2). The invention also relates to a watch movement (3) comprising such a plate (2), which is equipped with such a protection device (1) for its protection during the movement of said mobile (5).

Description

DescriptionDescription

Domaine de l’invention [0001] L’invention concerne un dispositif de protection, agencé pour la protection d’une platine de mouvement d’horlogerie, ladite platine comportant une surface de réception de dureté superficielle donnée pour la réception en appui d’une surface d’appui complémentaire d’un mobile dudit mouvement.FIELD OF THE INVENTION [0001] The invention relates to a protection device, arranged for the protection of a watch movement platen, said platen comprising a receiving surface of given surface hardness for receiving in support of a complementary bearing surface of a mobile said movement.

[0002] L’invention concerne encore un mouvement d’horlogerie comportant au moins une platine comportant une surface de réception de dureté superficielle donnée pour la réception en appui d’une surface d’appui complémentaire d’un mobile dudit mouvement.The invention also relates to a watch movement comprising at least one platen having a receiving surface of surface hardness given for receiving in support of a bearing surface complementary to a mobile said movement.

[0003] L’invention concerne encore une montre comportant un tel mouvement d’horlogerie.The invention further relates to a watch comprising such a watch movement.

[0004] L’invention concerne le domaine des mécanismes horlogers.The invention relates to the field of watch mechanisms.

Arrière-plan de l’invention [0005] Les mécanismes horlogers sont très sollicités en usure, et certains composants, réalisés notamment en alliage cuivreux, souffrent des frottements avec un composant antagoniste en matériau plus dur, alliage d’acier par exemple.BACKGROUND OF THE INVENTION [0005] Clock mechanisms are highly stressed in wear, and some components, made in particular of cuprous alloy, suffer from friction with an antagonistic component made of a harder material, steel alloy for example.

[0006] Ainsi, dans un mécanisme de remontage manuel, une tige manœuvrée par la couronne entraîne, par un guidage radial, un pignon remontoir qui engrène sur une roue couronne transmettant la rotation à un rochet de barillet, directement ou au travers d’un rouage. Ce pignon remontoir, en général en acier, est guidé axialement en appui sur un chant de la platine du mouvement, généralement en laiton ou similaire. L’usure intervient rapidement au niveau de cette zone de contact, et peut nécessiter le remplacement de la platine, ce qui est coûteux. Résumé de l’invention [0007] Plutôt que de changer le matériau de la platine, ce qui a une influence sur le coût du mouvement et sur son poids, l’invention se propose de modifier à moindres frais une platine existante pour lui assurer une longévité équivalente aux autres composants de la montre ou de la pièce d’horlogerie.Thus, in a manual winding mechanism, a rod operated by the ring drive, by a radial guide, a winding pinion which meshes with a crown wheel transmitting rotation to a barrel ratchet, directly or through a train. This winding pinion, usually made of steel, is axially guided in support on a singing of the movement plate, usually brass or the like. Wear occurs quickly in this contact area, and may require the replacement of the plate, which is expensive. SUMMARY OF THE INVENTION Rather than changing the material of the plate, which has an influence on the cost of movement and its weight, the invention proposes to modify at a lower cost an existing plate to ensure a longevity equivalent to other components of the watch or the timepiece.

[0008] A cet effet, l’invention concerne un dispositif de protection, agencé pour la protection d’une platine de mouvement d’horlogerie, ladite platine comportant une surface de réception de dureté superficielle donnée pour la réception en appui d’une surface d’appui complémentaire d’un mobile dudit mouvement, caractérisé en ce que ledit dispositif comporte au moins un insert comportant une surface de glissement de dureté superficielle supérieure à ladite dureté superficielle donnée d’une dite platine, et l’insert est agencé pour être rapporté sur ou dans cette platine de façon à ce que ladite surface de glissement dudit au moins un insert coïncide avec ladite surface de réception de cette platine.For this purpose, the invention relates to a protection device, arranged for the protection of a watch movement platen, said platen having a receiving surface of surface hardness given for receiving in support of a surface complementary support of a mobile said movement, characterized in that said device comprises at least one insert having a sliding surface of surface hardness greater than said given surface hardness of said platinum, and the insert is arranged to be reported on or in this plate so that said sliding surface of said at least one insert coincides with said receiving surface of this plate.

[0009] L’invention concerne encore un mouvement d’horlogerie comportant au moins une platine comportant une surface de réception de dureté superficielle donnée pour la réception en appui d’une surface d’appui complémentaire d’un mobile dudit mouvement, caractérisé en ce que ladite platine est équipée d’un tel dispositif de protection pour sa protection lors du mouvement dudit mobile.The invention also relates to a watch movement comprising at least one platen having a receiving surface of given surface hardness for receiving a bearing surface complementary to a mobile said movement, characterized in that said platen is equipped with such a protection device for its protection during the movement of said mobile.

[0010] Selon une réalisation particulière, ledit insert est positionné, ou bien en appui sur au moins une surface d’appui de ladite platine, ou bien dans un logement de ladite platine.In a particular embodiment, said insert is positioned, or supported on at least one bearing surface of said plate, or in a housing of said plate.

[0011] Selon une réalisation particulière, ladite platine comporte au moins une première surface d’indexage agencée pour coopérer en appui avec une première surface d’indexage que comporte ledit insert.According to a particular embodiment, said plate comprises at least a first indexing surface arranged to cooperate in abutment with a first indexing surface that includes said insert.

Description sommaire des dessins [0012] D’autres caractéristiques et avantages de l’invention apparaîtront à la lecture de la description détaillée qui va suivre, en référence aux dessins annexés, où: la fig. 1 représente, de façon schématisée et en perspective, en section selon un plan passant par un axe de tige de remontoir, un dispositif de protection d’une platine selon une réalisation particulière, dans une application particulière à la protection d’un chant de platine servant de face d’appui à un mobile tel qu’un pignon remontoir, dans un mécanisme de remontage horloger, par l’interposition d’un insert particulier entre la platine et ce mobile, en appui sur une surface de la platine; la fig. 2 représente, de façon schématisée et en section partielle selon un plan P en vue de bout suivant A, le dispositif de la fig. 1; la fig. 3 représente, de façon schématisée et en section selon le plan de coupe de la fig. 1, vue selon B, le dispositif de la fig. 1; la fig. 4 représente, de façon schématisée et en vue de dessus selon la direction C, le dispositif de la fig. 1 ; la fig. 5 représente, de façon schématisée et en perspective, l’insert du dispositif de la fig. 1, comportant une face d’indexage angulaire sur la platine; la fig. 6 représente, de façon schématisée et en perspective, une variante d’insert comportant deux faces d’indexage angulaire perpendiculaires l’une à l’autre; la fig. 7 représente, de façon schématisée et en perspective, une autre variante d’insert comportant deux faces d’indexage angulaire perpendiculaires l’une à l’autre, et une troisième face parallèle à l’une d’elles; la fig. 8 représente, de façon schématisée et de dessus, de façon analogue à la fig. 4, une autre variante de mé canisme où la platine comporte une encoche dans laquelle est enfilé un insert par le dessus; la fig. 9 représente, de façon schématisée et en perspective, une variante d’insert en forme de cavalier convenant au mécanisme de la fig. 8; la fig. 10 représente, sous la forme d’un schéma-blocs, une montre comportant un mouvement avec une plaine équipée d’un dispositif de protection contre l’usure due au frottement d’un mobile.BRIEF DESCRIPTION OF THE DRAWINGS [0012] Other characteristics and advantages of the invention will appear on reading the detailed description which follows, with reference to the appended drawings, in which: FIG. 1 represents, schematically and in perspective, in section along a plane passing through a winding stem shaft, a device for protecting a plate according to a particular embodiment, in a particular application to the protection of a platinum song. serving as a bearing surface for a mobile such as a winding pinion, in a clock winding mechanism, by the interposition of a particular insert between the plate and the mobile, bearing on a surface of the plate; fig. 2 is a schematic and partially sectional view along a plane P in end view along A, the device of FIG. 1; fig. 3 represents, schematically and in section along the sectional plane of FIG. 1, view according to B, the device of FIG. 1; fig. 4 shows schematically and in plan view in direction C, the device of FIG. 1; fig. 5 shows schematically and in perspective, the insert of the device of FIG. 1, having an angular indexing face on the plate; fig. 6 shows, schematically and in perspective, an insert variant having two angular indexing faces perpendicular to each other; fig. 7 is a diagrammatic perspective view of another variant of insert having two angular indexing faces perpendicular to each other, and a third face parallel to one of them; fig. 8 is a schematic and top view, similar to FIG. 4, another variant of mechanism wherein the plate has a notch in which is threaded an insert from above; fig. 9 represents, schematically and in perspective, an alternative form of jumper-shaped insert suitable for the mechanism of FIG. 8; fig. 10 shows, in the form of a block diagram, a watch comprising a movement with a plain equipped with a device for protection against wear due to the friction of a mobile.

Description détaillée des modes de réalisation préférés [0013] L’invention concerne le domaine des mécanismes horlogers, dans lesquels un mobile en fonctionnement est en appui sur une surface d’un autre composant, que l’on appellera ici platine.DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0013] The invention relates to the field of watch mechanisms, in which a mobile in operation bears on a surface of another component, which will be called platinum here.

[0014] On appelle ici mobile tout composant horloger monté mobile en rotation ou/et translation dans un mécanisme.[0014] Here we call mobile any watch component mounted mobile in rotation or / and translation in a mechanism.

[0015] On comprend que l’invention ne se limite pas au cas d’une platine au sens usuel du terme, mais concerne tout composant de mouvement d’horlogerie, ou encore tout composant d’habillage d’horlogerie, soumis à une usure par frottement.It is understood that the invention is not limited to the case of a platinum in the usual sense of the term, but concerns any watch movement component, or any component of clockwork, subject to wear by friction.

[0016] L’invention concerne un dispositif 1 de protection d’une platine 2 de mouvement d’horlogerie 3, au niveau d’une surface de réception 4 géométrique que comporte cette platine 2 pour la réception en appui d’une surface d’appui complémentaire 51 d’un mobile 5.The invention relates to a device 1 for protecting a turntable 2 of the watch movement 3, at a geometric receiving surface 4 that comprises the plate 2 for receiving in support of a surface of additional support 51 of a mobile phone 5.

[0017] Selon l’invention, ce dispositif 1 comporte au moins un insert 6. Cet insert 6 comporte une surface de glissement 7 de dureté superficielle supérieure à celle de la platine 2, et est rapporté sur ou dans la platine 2, de façon à ce que sa surface de glissement 7 coïncide géométriquement avec la surface de réception 4 théorique.According to the invention, this device 1 comprises at least one insert 6. This insert 6 has a sliding surface 7 of superficial hardness greater than that of the plate 2, and is attached to or in the plate 2, so its sliding surface 7 coincides geometrically with the theoretical receiving surface 4.

[0018] L’invention concerne encore un mouvement d’horlogerie 3 comportant au moins une platine 2 équipée d’un tel dispositif de protection 1 pour la protection de la platine 2 lors du mouvement d’un mobile 5 que comporte ce mouvement 3.The invention also relates to a watch movement 3 comprising at least one plate 2 equipped with such a protection device 1 for the protection of the plate 2 during the movement of a mobile 5 that includes this movement 3.

[0019] Cet insert 6 est de préférence positionné, ou bien en appui sur au moins une surface d’appui 20 de la platine 2 tel que visible sur les fig. 1 à 4, ou bien dans un logement 8 de la platine 2 tel que visible sur la fig. 8.This insert 6 is preferably positioned, or supported on at least one bearing surface 20 of the plate 2 as shown in FIGS. 1 to 4, or in a housing 8 of the plate 2 as shown in FIG. 8.

[0020] L’ insert 6 n’est pas solidarisé avec la platine 2, ce qui autorise son remplacement éventuel.The insert 6 is not secured to the plate 2, which allows its possible replacement.

[0021] Dans le mode de réalisation préféré, tel que visible sur les fig. 1 à 4, et 8, la platine 2 comporte au moins une première surface d’indexage 21, qui est agencée pour coopérer en appui avec une première surface d’indexage complémentaire 61 que comporte l’insert 6. Sur les fig. 1 à 4 l’insert 61 comporte une surface d’indexage complémentaire 61 unique, qui est réalisée sous forme plane, tel que visible sur la fig. 5, la première surface d’indexage 21 est alors une partie de la platine. Il est ainsi facile d’indexer angulairement l’insert 6 par rapport à la platine 2, et de définir sa position relative, ici selon la direction C de la fig. 1. Quand, comme sur les figures, la platine 2 comporte un alésage 29, et l’insert 6 comporte un alésage 69, il est ainsi facile de les positionner l’un par rapport à l’autre, et notamment de les mettre dans un même plan si l’on en recherche l’alignement.In the preferred embodiment, as shown in FIGS. 1 to 4, and 8, the plate 2 comprises at least a first indexing surface 21, which is arranged to cooperate in abutment with a first complementary indexing surface 61 that comprises the insert 6. In FIGS. 1 to 4 the insert 61 comprises a single complementary indexing surface 61, which is made in planar form, as visible in FIG. 5, the first indexing surface 21 is then a part of the plate. It is thus easy to index the insert 6 angularly relative to the plate 2, and to define its relative position, here in the direction C of FIG. 1. When, as in the figures, the plate 2 has a bore 29, and the insert 6 has a bore 69, it is thus easy to position them relative to each other, and in particular to put them in the same plan if we are looking for alignment.

[0022] Dans le mécanisme de remontoir illustré par les figures, l’insert 6 est centré dans un chambrage 20 du mobile 5, ici un pignon remontoir. Un décrochement avec un plat, constituant cette première surface d’indexage complémentaire 61, sur l’insert 6, permet de bloquer celui-ci angulairement sur la platine 2. Le dispositif 1 est conçu pour un montage vertical, c’est-à-dire selon la direction C de la fig. 1, qui est très simple et ne nécessite aucun pré-montage de l’insert sur la platine 2.In the winding mechanism shown in the figures, the insert 6 is centered in a recess 20 of the mobile 5, here a winding pinion. A recess with a plate, constituting this first complementary indexing surface 61, on the insert 6, blocks it angularly on the plate 2. The device 1 is designed for vertical mounting, that is to say say in direction C of fig. 1, which is very simple and requires no pre-assembly of the insert on the plate 2.

[0023] Le matériau de l’insert 6 peut être choisi parmi alliages cuivreux, alliages d’aciers, matériaux synthétiques, rubis artificiels, ou autres.The material of the insert 6 may be selected from copper alloys, steel alloys, synthetic materials, artificial rubies, or others.

[0024] Dans une variante très économique de l’invention, l’insert 6 visible sur les fig. 1 à 5 comporte un corps principal de révolution 64 en forme de rondelle, porteur d’au moins un alésage 69, et, saillant de ce corps 64, un bossage 65 comportant une telle surface d’indexage complémentaire 61. L’insert 6 est ainsi ébauché sous forme d’une rondelle décolletée, et est fini par un simple fraisage délimitant, d’une part la surface d’indexage complémentaire 61, et d’autre part une surface d’appui complémentaire 60 destinée à venir en appui sur la surface d’appui 20 de la platine 2. On peut aussi réaliser cet insert 6 par étampage, ou encore par injection plastique. Il est tout aussi facile de transformer une platine existante, par fraisage latéral d’un dégagement correspondant à l’épaisseur E du corps 64 de l’insert 6, et par fraisage surfacique éventuel de l’une première surface d’indexage 21, dans le cas où la platine 2 considérée n’est pas plane dans cette zone.In a very economical variant of the invention, the insert 6 visible in FIGS. 1 to 5 comprises a main body of revolution 64 in the form of a washer, carrying at least one bore 69, and protruding from this body 64, a boss 65 comprising such a complementary indexing surface 61. The insert 6 is thus sketched in the form of a low-cut washer, and is finished by a simple milling delimiting, on the one hand the complementary indexing surface 61, and on the other hand a complementary bearing surface 60 intended to bear on the support surface 20 of the plate 2. It can also achieve this insert 6 by stamping, or by plastic injection. It is just as easy to transform an existing plate, by lateral milling a clearance corresponding to the thickness E of the body 64 of the insert 6, and by possible surface milling of the first indexing surface 21, in the case where the platinum 2 considered is not flat in this area.

Claims

In a variant, the plate 2 comprises at least a second indexing surface 22 arranged to cooperate in abutment with a second complementary indexing surface 62 that includes the insert 6. As shown in FIG. 6 illustrating a nonlimiting embodiment, the second indexing surface 22 is distinct from the first indexing surface 21, and the second complementary indexing surface 62 is distinct from the first complementary indexing surface 61. same example of FIG. 6, the second indexing surface 22 is flat and oblique with respect to said first indexing surface 21 which is flat, and the second complementary indexing surface 62 is flat and oblique with respect to the first complementary indexing surface. 61 which is flat. And, more particularly, the second indexing surface 22 is perpendicular to the first indexing surface 21, and the second complementary indexing surface 62 is perpendicular to the first complementary indexing surface 61. Thus, a precise three-dimensional positioning of the insert 6 with respect to the plate 2, and the alignment of their respective respective bores 69 and 29. FIG. 7 further illustrates another variant of insert 6 having two angular indexing faces 61 and 62 perpendicular to each other, and a third face 63 parallel to one of them 62. [0026] In many horological applications, and in particular in the application illustrated by the figures of a movement 3 comprising a winding mechanism, the plate 2 comprises at least one bore 29 along a rod axis D for the pivotal guidance of a rod 9. Also the use of an insert 6 according to the invention can it, in addition to the protection of the edge face of the plate 2, to less wear this bore 29 of the plate, ensuring at least a range of guiding such a rod 9. [0027] For this purpose, the insert 6 advantageously comprises at least one bore 69 for pivoting guidance of a rod

1. Protective device (1), arranged for the protection of a watch movement plate (2) (3), said plate (2) having a receiving surface (4) of given surface hardness for the reception in supporting a complementary bearing surface (51) of a mobile (5) of said movement (3), characterized in that said device (1) comprises at least one insert (6) having a sliding surface (7) of superficial hardness greater than said given surface hardness of said platinum (2), and the insert is arranged to be attached to or in said platen (2) so that said sliding surface (7) of said at least one an insert (6) coincides with said receiving surface (4) of this plate (2).

2. Watchmaking movement (3) comprising at least one plate (2) having a reception surface (4) of given surface hardness for reception in support of a complementary bearing surface (51) of a mobile ( 5) of said movement (3), characterized in that said plate (2) is equipped with a protection device (1) according to claim 1 for the protection of said plate (2) during the movement of said mobile (5).

3. Watchmaking movement (3) according to claim 2, characterized in that said insert (6) is arranged to be positioned, or supported on at least one bearing surface (20) of said plate (2) , or in a housing (8) that comprises said plate (2).

4. Watchmaking movement (3) according to claim 2 or 3, characterized in that said plate (2) comprises at least a first indexing surface (21) arranged to cooperate in abutment with a first complementary indexing surface (61) that comprises said insert (6).

5. Timepiece (3) according to claim 4, characterized in that said plate (2) comprises at least a second indexing surface (22) arranged to cooperate in abutment with a second complementary indexing surface (62). ) that comprises said insert (6).

Timepiece (3) according to claim 5, characterized in that said second indexing surface (22) is distinct from said first indexing surface (21), and in that said second indexing surface complementary (62) is distinct from said first complementary indexing surface (61).

Timepiece (3) according to claim 6, characterized in that said second indexing surface (22) is plane and oblique with respect to said first indexing surface (21) which is flat, and in that said second complementary indexing surface (62) is planar and oblique with respect to said first complementary indexing surface (61) which is planar.

Timepiece (3) according to claim 6, characterized in that said second indexing surface (22) is perpendicular to said first indexing surface (21), and in that said second surface of the indexing surface (22) is complementary indexing (62) is perpendicular to said first complementary indexing surface (61).

9. Watchmaking movement (3) according to one of claims 2 to 8, characterized in that said plate (2) comprises at least one bore (29) along a rod axis (D) for the pivoting guide d a rod (9).

9. In particular, this bore 69 is treated or coated with a treatment or anti-wear coating, or the insert 6 is equipped with a ring, having the bore 69, this ring being in a suitable material or treated or coated with anti-wear treatment or coating. The device 1 is advantageously used in a mechanism where the bore 69 of the insert 6 and the bore 29 of the plate 2 are aligned in the assembly position of the insert 6 on the plate 2. [0029] The watch movement 3, or the device 1, is preferably arranged to receive, in the same direction of insertion during assembly, the insert 6 and the mobile 5, preferably perpendicular to the axis of rod D and in the direction C of FIG. 1, and comprises a chamber 80 in which at least the insert 6 is movable in a plane perpendicular to the stem axis D in the absence of a rod 9, and wherein the insert 6 is immobilized in a single position when inserting such a rod 9 into the bore 69 of the insert 6 and the bore 29 of the plate 2. [0030] The sliding surface 7 of the insert 6 is preferably perpendicular to the stem axis D. [0031] In the particular case illustrated by the figures, the device 1 is part of a winding mechanism 10 of a watch 30, the mobile 5 is a winding pinion, and the plate 2 comprises a bore 29 along a shaft axis D for pivoting guidance of a winding stem 9, which is also guided in a bore 69 of the insert 6 when the latter is in the bearing and abutment position on the plate 2 for the pivotal guidance of such a rod 9. [0032] The invention also relates to a movement of horl ogerie 3 having at least one plate 2 equipped with such a protection device 1 for its protection during the movement of a mobile 5 that includes this movement 3, and whose insert 6 is or maintained in the plate 2 by a rod 9 inserted at a time in a bore 29 of rod D of the plate and in a bore 69 of this insert 6 aligned with the bore 29 of the plate 2, or movable relative to the plate 2 according to a plane perpendicular to the axis of stem D. [0033] The invention also relates to a watch 30 comprising such a clockwork movement 3. [0034] Thus, the invention makes it possible to eliminate the wear of the plate, especially in a manual winding mechanism. It allows the reuse of an existing platinum at the cost of tiny transformations, with a very inexpensive implementation insert. The only after-sales interventions concern the insert, not the platinum. claims

10. Timepiece (3) according to one of claims 2 to 9, characterized in that said insert (6) comprises at least one bore (69) for pivoting guidance of a rod (9).

11. Watchmaking movement (3) according to claims 9 and 10, characterized in that said bore (69) of said insert (6) and said bore (29) of said plate (2) are aligned in assembly position of said insert (6) on said platen (2).

12. Timepiece (3) according to claim 10 or 11, characterized in that it comprises a chamber (80) wherein said insert (6) is movable in a plane perpendicular to said rod axis (D) in the absence of the rod (9), and wherein said insert (6) is immobilized in a single position upon insertion of the rod (9) into said bore (69) of said insert (6) and said bore (29). ) of said platen (2).

Clock movement (3) according to one of claims 9, 11 or 12, characterized in that said sliding surface (7) is perpendicular to said rod axis (D).

14. Watchmaking movement (3) according to one of claims 2 to 13, characterized in that said device (1) is part of a winding mechanism (10) of the movement, in that said mobile (5) is a winding pinion, and in that said plate (2) has a bore (29) along a rod axis (D) for pivoting guidance of a winding stem (9), which is also guided in a bore (69) of said insert (6) when it is in abutment and abutment position on said plate (2) for pivotal guidance of said rod (9).

15. Watchmaking movement (3) according to one of claims 2 to 14, characterized in that said insert (6) is or held in said plate (2) by a rod (9) inserted both in a bore (29) along a rod axis (D) of said platen and in a bore (69) of said insert (6) aligned with said bore (29) of said platen, or movable relative to said platen (2) in a plane perpendicular to said rod axis (D).

16. Watch (30) comprising a clockwork movement (3) according to one of claims 2 to 15.