• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a return spring structure for a hand-wound timepiece, which is easily mounted and easily removed after assembly under the effect of an external force, a manual winding mechanism and a timepiece with a winding mechanism. manual with this mechanism. Said return spring structure (1) of the manual winding mechanism (2) of a hand-wound timepiece (3) comprises a plate-shaped positioning portion (61) which is positioned on a surface of a support member (10), an engaging spring portion (62) forcibly inserted into an opening (16) of a plate-like locking portion (13b) of the support member, provided with a locking end portion (66), which is locked in a rear surface of a wall (14) defining the opening, and being provided with a hooking spring arm portion extending from a marginal portion (61e) of the plate-shaped positioning portion, and a return spring portion (64) extending from the other marginal portion (61f) of the shaped positioning portion plate. In this case, typically, the return spring structure also has a (spring) positioning portion (63) that includes a positioning portion of the spring arm (63a) extending parallel to the spring arm portion. hooking (62) from a marginal portion (61e) of the plate-shaped positioning portion and an attachment end portion (67) which is arranged to be forced into the opening (16) of the support member at the front end portion.
    公开号:CH705047B1
    申请号:CH00326/12
    申请日:2012-03-08
    公开日:2017-02-28
    发明作者:Tokoro Takeshi；Fujiwara Toshiyuki
    申请人:Seiko Instr Inc；
    IPC主号:
    专利说明:

    1. The technical field of the invention
    The present invention relates to a return spring structure of a hand-wound timepiece, a hand winding mechanism and a hand-wound timepiece having this mechanism.
    2. Description of the state of the art
    In a timepiece having both an automatic winding mechanism and a manual winding mechanism (a winding mechanism by hand) of the mainspring, a gear train (the sliding ratchet or the second intermediate transmission wheel ) which constitutes a hand winding mechanism is connected to an intermediate wheel (for example to the second transmission wheel) among the wheels which constitute an automatic wheel which extends between an oscillation weight and a ratchet. That the mainspring is powered by the automatic winding mechanism, the loss of energy is caused by the rotation of the wheels between a winding pinion and the sliding ratchet (the second intermediate transmission wheel) in the hand winding train . To avoid losses, the central axis of rotation of the sliding ratchet tilts to withdraw during reassembly using the automatic winding mechanism so that the gear between the sliding ratchet and the second transmission wheel is released (e.g., JP-A-2006-258795 (Reference Patent 1)).
    When the mainspring is manually raised (reassembled by hand) around a central axis of the winding stem by means of the rotation of the crown, the sliding ratchet which withdraws to a position in which it does not mesh with the second transmission wheel is rotated by a crown wheel to mesh with the second transmission wheel by receiving an oscillation torque in the direction in which it is housed in the position of gear in which the sliding ratchet meshes with the second transmission wheel. It is known to provide a return spring for moving the sliding ratchet from the uninhibited position to the engaged position (JP-A-2003-279667 (reference patent 2)).
    [0004] The return spring which is disclosed in the reference patent 2 (the support member 83 in Fig. 6 disclosed in the reference patent 1) is attached to the screw through an attachment part. (83A). However, as the return spring is small in practice (typically, its length is equal to or smaller by a few millimeters) and as it requires fixing by a screw when the spring is armed, there is a concern that fixing by a screw might not be easy. In addition, there is a concern that site stability may be poor and that positioning may not be easy.
    In addition, the timepieces illustrated in FIGS. 12 to 15 are proposed as hand-wound timepieces which include hand-winding mechanisms with a return spring structure of a hand-wound timepiece which, in principle, can simply be fixed (blocked) by setting into a predetermined state at a predetermined position.
    In a manual winding mechanism 103 of a hand-wound timepiece 105 which is illustrated in FIG. 12, a winding pinion 114 which meshes with a clutch wheel 112 and a ratchet mechanism is rotated by it in the direction XA1 in response to the rotation of the winding stem 110, which is in the normal needle adjustment position, in the same direction XA1. In response to the rotation of the winding pinion 114 in the XA1 direction, the crown wheel 116 is rotated in the XB1 direction, the sliding ratchet 120 is correspondingly rocked in the XD1 direction and is rotated in the XE1 direction. . Then, a ratchet 130 is rotated in the XG1 direction through the second transmission wheel 122 to arm a motor spring 142 in the barrel 140. In FIG. 12 and in fig. 13 (a) to (c), the reference numeral 150 represents a first bridge, the reference numeral 152 represents an automatic wheel axle, the reference numeral 132 represents a ratchet screw, and the reference numeral 144 represents a pawl.
    In the automatic winding mechanism (not shown), the alternation of the oscillation weight is further transmitted to the second transmission wheel 122 as a one-way intermittent rotation, the second transmission wheel 122 is set in motion. rotates intermittently in the direction XJ1, and the ratchet 130 is rotated intermittently in the XG1 direction to arm the mainspring 142 in the barrel 140. When the sliding ratchet 120 meshes with the second transmission wheel 122 immediately after reassembly by hand, the second transmission wheel 122 rotates the sliding ratchet 120 in the direction XE1 during the rotation of the second transmission wheel 122 in the direction XJ1 and the sliding ratchet 120, which is maintained at state in which it meshes with the crown wheel 116, switches in the direction XD2. Therefore, the gear between the second transmission wheel 122 and the sliding ratchet 120 is released.
    Meanwhile, in a conventional hand winding mechanism 103 of the hand-wound timepiece105, when the winding stem 110 is rotated in the XA1 direction by means of the crown (not shown) , the return spring or the sliding ratchet spring 160 applying an elastic force YF1 to the sliding ratchet 120, which acts on the sliding ratchet 120 to the tilting position in the XD1 direction, is set up in order to reliably move the sliding ratchet 120, which temporarily tilts and retreats in the direction XD2 during the operation of the automatic winding mechanism, to the tilting position to mesh again with the second transmission wheel 122.
    As can be seen in FIGS. 14 and 15, in addition to FIG. 12, the return spring 160 here comprises a fastening-side attachment rear portion 161 which is U-shaped curved and the spring-pressing portion 163 which is obtained by extending the front end portion of the honeycomb-shaped branch 162. U. The spring biasing portion 163 is resiliently deformable or tiltable in the XH1 and XH2 directions relative to the front end portion of the U-shaped leg 162. In the rearward attachment portion of the rear end portion of the U-shaped branch 164 or a front end portion 165 of the rear attachment side, a curved locking portion 166 facilitating the positioning of the return spring 160 is formed. As can be seen in fig. 14 in addition to FIG. 12, the return spring 160 is, for example, arranged in a concave portion of a return spring arrangement 153 of the first bridge 150 and the tip of the curved locking portion 166 is arranged in the small concave portion 153a of the portion Concave 153. Therefore, the return spring 160 is positioned.
    However, the return spring 160 is not easily mounted in practice. That is, during mounting of the return spring 160, there is a necessary side to bend (withdraw) the pressing portion of the spring 163 in advance in the direction XH2 to apply the elastic force YF1 to the ratchet sliding 120 in the direction XH1. On the other hand, it is necessary to arrange the attaching attachment back portion 161 in the concave return spring arrangement 153 of the first bridge 150 to lock the curved locking portion 166 in the small concave portion. 153a of the concave portion of the return spring arrangement 153. Therefore, in practice, the following is necessary: the attachment-side attachment rear portion 161 is arranged in the concave return spring arrangement portion 153 of the first bridge 150 so that the bent blocking portion 166 is locked in the small concave portion 153a of the concave return spring arrangement portion 153; and that the back attachment side attachment 161 of the return spring 160 is pressed by a finger or the like so as not to be withdrawn from the concave portion, the pressing portion of the spring 163 is bent in the XH2 direction to touch the the outer rim of the sliding ratchet 120 so that the pressing part of the spring 163 can apply the elastic force YF1 to the sliding ratchet 120 in the direction XH1. That is, during the assembly of the return spring 160, it is necessary to hold the rear attachment attachment portion 161 of the return spring 160 with one hand and to bend or hold the pressing portion of the spring 163 with the other hand. Furthermore, in the return spring 160, when a force is applied to the pressing portion of the spring 163 by shock or the like in the direction in which the return spring 160 withdraws from the concave portion of the spring the first bridge 150, the curved locking portion 166 also easily withdraws from the small concave portion 153a even with a slight impact. In addition, when the bent blocking portion 166 is removed from the small concave portion 153a, there is the concern that the return spring 160 may be removed from the concave return spring arrangement portion 153.
    Summary of the invention
    An aspect of the present application is to provide a return spring structure of a hand-wound timepiece that can be mounted in an easy manner and can not be easily removed after assembly. by means of an unexpected external force, for example in the form of a small shock, a winding mechanism by hand and a timepiece with manual winding with this mechanism.
    According to the present application, a return spring structure of a hand-wound timepiece is provided comprising: a plate-shaped positioning portion which is placed on a surface of a support member; an engaging spring portion which is forcefully inserted into an opening of a plate-like locking portion of the support member, having a locking end portion, which is locked in a rear surface of a wall defining the opening, in the plate-like locking portion, and being provided with a spring arm hooking portion extending from a marginal portion of the plate-shaped positioning portion; and a return spring portion extending from the other marginal portion of the plate-shaped positioning portion.
    In the return spring structure of a hand-wound timepiece according to the present application, "a plate-shaped positioning portion which is placed on a surface of a support member; and a latching spring portion that is forcefully inserted into an opening of a plate-like locking portion of the support member, having a locking end portion, which is locked in a rear surface of a wall defining the opening, in the plate-like locking portion, and being provided with a hooking spring arm portion extending from a marginal portion of the plate-shaped positioning portion " are planned. Therefore, by pressing the snap-fastening portion in the situation where the plate-shaped positioning portion is placed on the surface of the support member and inserting the locking end portion into the opening of the support member. plate-like locking portion of the support member, the locking end portion which is located at the front end of the snap-arm portion extending from a marginal portion of the portion of Plate-shaped positioning can be locked in the rear surface of the wall which defines the opening of the plate-like locking portion. As a result, editing can be done in an easy way.
    Here, typically, the convex and concave portions are formed on the surface of the support member where the plate-shaped positioning portion is located. In the plate-shaped positioning portion, the convex and concave portions that can be mounted in the above-mentioned convex and concave portions are formed essentially with complementary shapes to position the plate-shaped positioning portion. The concave portion of the plate-shaped positioning portion may be an opening (a hole).
    The return spring structure of a manually wound timepiece according to the present application typically further comprises a spring positioning portion which includes a positioning portion of the spring arm extending parallel to the portion of the spring arm. engaging spring arm arm from a marginal portion of the plate-shaped locating portion and a fixing end portion engaged with the opening of the support member at the front end portion.
    In this case, when the locking end portion of the engaging spring portion is inserted into the opening of the support member, the end portion of the spring positioning portion is also inserted into the opening and the spring positioning portion is set at the reference position. Therefore, the return spring structure of a hand-wound timepiece can be reliably maintained at the predetermined position by the positioning spring arm portion and the engaging spring arm portion of any the state of the return spring portion. Therefore, when the return spring structure of a hand-wound timepiece is mounted, the concern that it would be removed is further reduced.
    In the return spring structure of a hand-wound timepiece according to the present application, typically, the locking end portion of the engaging spring portion has an inclined guide surface for forced insertion. as the front end and a forced insertion blocking surface as the rear fixing end.
    In this case, when the hooking spring portion is pressed and the locking portion is inserted into the opening of the support member, the locking end portion is inserted into the opening by the inclined surface. forced insertion guide. Therefore, the locking end can be easily inserted into the opening and the locking end portion can be reliably locked by the locking surface of the forced insertion.
    In the spring structure of a timepiece with manual winding according to the present application:(1) the other marginal part of the plate-shaped positioning part, which is connected to the part of the return spring, can be located on the opposite side to the first marginal part, which is connected to the spring part hooking the plate-shaped positioning portion, and the return spring portion is extendable in a direction intersecting the hooking spring arm portion of the engaging spring portion; and(2) the other marginal portion, which is connected to the return spring portion of the plate-shaped positioning portion, may be located adjacent to the first marginal portion, which is connected to the spring portion of hooking of the plate-shaped positioning portion, and the return spring portion may extend in parallel with the latching spring arm portion of the latching spring portion.
    In the second case (i.e., (2)), even if the front end of the return spring portion in the return spring structure of a timepiece with winding Since the manual is subjected to an external force to be lifted to the rear attachment, the snap-on portion may prevent the return spring structure from being removed from the opening. Therefore, the concern that the return spring structure can be removed through an unexpected external force can be suppressed to a minimum.
    In the return spring structure of a hand-wound timepiece according to the present application, typically, the plate-shaped positioning portion has an opening which is engaged with a convex portion projecting from the surface of the support element.
    In this case, the return spring structure can be positioned and fixed in a stable and more reliable manner.
    According to the application, a hand winding mechanism is provided, wherein the spring structure of a aforementioned manual winding timepiece applies an elastic force to the sliding ratchet spring which moves a sliding ratchet a non-meshing position with the release of the meshing with a second transmission wheel at a position meshing with the meshing with the second transmission wheel.
    In addition, according to the present application, a timepiece with manual winding is provided comprising the abovementioned hand winding return spring structure or the aforementioned hand winding mechanism.
    Brief description of the drawings
    [0025]<Tb> Fig. 1 <SEP> is a plan diagram illustrating a portion of a manually wound timepiece according to a preferred embodiment of the present invention which is provided with a hand winding mechanism according to a preferred embodiment of the present invention having a sliding ratchet spring such as a return spring structure of a manually wound timepiece according to a preferred embodiment of the present invention.<Tb> Fig. 2A to fig. 2D <SEP> are sectional views illustrating a portion of the manually wound timepiece of FIG. 1. Fig. 2A is a sectional view illustrating a sliding ratchet spring structure, a sliding ratchet structure, and a second transmission wheel structure in the hand winding mechanism of the manually wound timepiece of FIG. 1. Fig. 2B is a sectional view illustrating the arrangement situation of the ratchet spring structure sliding in the hand winding mechanism of the manually wound timepiece of FIG. 1. Fig. 2C is a sectional view illustrating the situation in which the sliding ratchet spring structure of FIG. 1 is locked in an opening of a first bridge. Fig. 2D is a sectional view illustrating a portion of the timepiece reassembled by hand.<Tb> Fig. 3 <SEP> is a perspective view illustrating the manual winding mechanism of the hand-wound timepiece of FIGS. 1 and 2A to 2D.<Tb> Fig. 4 <SEP> is a sectional view in perspective when the part of the manual winding mechanism of the hand-wound timepiece of FIGS. 1 and 2A to 2D is observed from a direction different from that of FIG. 3.<Tb> Fig. <SEP> is an enlarged perspective view illustrating the sliding ratchet spring structure of FIG. 1.<Tb> Fig. 6 <SEP> is a plan diagram similar to FIG. 1 illustrating a portion of a manually wound timepiece according to another preferred embodiment of the present invention which is provided with a hand winding mechanism according to another preferred embodiment of the present invention having a ratchet spring sliding as a return spring structure of a manually wound timepiece according to another preferred embodiment of the present invention.<Tb> Fig. 7 <SEP> is an enlarged perspective view similar to FIG. 5 illustrating the sliding ratchet spring of FIG. 6.<Tb> Fig. 8 <SEP> is a plane diagram similar to FIG. 1 illustrating a portion of a manually wound timepiece according to yet another preferred embodiment of the present invention which is provided with a hand winding mechanism according to yet another preferred embodiment of the present invention. having a sliding ratchet spring structure such as a return spring structure of a manually wound timepiece according to yet another preferred embodiment of the present invention.<Tb> Fig. 9 <SEP> is an enlarged perspective view similar to FIG. 5 illustrating the sliding ratchet spring structure of FIG. 8.<Tb> Fig. <SEP> is a plan diagram similar to FIG. 1 illustrating a portion of a timepiece with manual winding still according to another preferred embodiment of the present invention which is provided with a hand winding mechanism according to an always other preferred embodiment of the present invention having a sliding ratchet spring structure such as a return spring structure of a manually wound timepiece according to still another preferred embodiment of the present invention.<Tb> Fig. 11 <SEP> is an enlarged perspective view similar to FIG. 5 illustrating the sliding ratchet spring structure of FIG. 10.<Tb> Fig. 12 <SEP> is a plane diagram similar to FIG. 1 illustrating a portion of a conventional manual winding timepiece which is provided with a conventional hand winding mechanism having a sliding ratchet spring such as a return spring structure of a timepiece with a reassembly conventional manual.<Tb> Fig. 13A to fig. 13C <SEP> are sectional views illustrating a portion of the conventional manual winding timepiece of FIG. 12. Fig. 13A is a sectional view similar to FIG. 2A illustrating a sliding ratchet spring, a sliding ratchet, and a second transmission wheel in the hand winding mechanism of the conventional manual winding timepiece of FIG. 12. Fig. 13B is a sectional view similar to FIG. 2B illustrating the arrangement of the sliding ratchet spring in the manual winding mechanism of the conventional manual winding timepiece of FIG. 12. Fig. 13C is a sectional view similar to FIG. 2D illustrating part of the conventional manual winding timepiece of FIG. 12.<Tb> Fig. 14 <SEP> is a perspective view similar to FIG. 3 illustrating the manual winding mechanism of a conventional manual winding timepiece of FIGS. 12 and 13A to 13C.<Tb> Fig. <SEP> is an enlarged perspective view similar to FIG. 5 illustrating the sliding ratchet spring of FIG. 12.
    Detailed Description of the Preferred Embodiments
    Some preferred embodiments according to the present invention will now be described with reference to the accompanying drawings illustrating the preferred examples.
    [Embodiment]
    FIG. 1 to 5 illustrate a manually wound timepiece 3 according to a first embodiment of the present invention which comprises a hand winding mechanism 2 according to a first embodiment of the present invention having a ratchet spring structure sliding 1 as the return spring structure of a timepiece with manual winding according to the first embodiment of the present invention.
    As can be seen in Figs. 2D and fig. 2A, the timepiece with manual winding 3 comprises a plate 6 serving as a main support substrate, a first bridge 10, and an automatic wheel bridge 7. In addition, the timepiece with manual winding 3 also comprises a automatic winding mechanism (not shown) and is therefore configured as a timepiece with manual winding in which automatic winding is also possible (such as an automatically reassembled timepiece in which manual winding is also possible).
    A barrel 20 is arranged between the plate 6 and the first bridge 10. The barrel 20 comprises a barrel toothed portion 21, a barrel shaft 22, a motor spring 23, and a ratchet 24. The motor spiral spring 23 is engaged by the friction with an inner peripheral wall 21a of the barrel toothed portion 21 at one of its outer peripheral ends and is attached to the barrel shaft 22 at its inner peripheral end. The ratchet 24 is fixed to the barrel shaft 22 by means of a ratchet screw 25 on the rear side of the housing of the first bridge 10. The barrel shaft 22 is supported in rotation by the plate 6 and the first bridge 10 through the bearing portions 22a and 22b.
    The reference number 26 represents a pawl.
    In the plate 6, a winding stem 30 is arranged to be rotated about a central axis line A in the directions A1 and A2 and also to move forward and backward in parallel to the direction extending from the line of the central axis A and in the directions A3 and A4. A clutch wheel 32 is mounted in the prismoid portion 31 of the winding stem 30 to be rotated together with the winding stem 30 in the directions A1 and A2. A winding pinion 34 is mounted in the columnar portion 33 of the winding stem 30. When the winding stem 30 is in the normal position of needle adjustment P1 being inserted in the direction A4, the toothed portions of the ratchet 34a and 32a, of the winding pinion 34 and the clutch wheel 32 meshing. When the winding stem 30 is rotated in the direction A1, the clutch wheel 32 and the winding pinion 34 are also rotated in the direction A1. In addition, when the winding stem 30 is rotated in the direction A2, the rotation of the clutch wheel 32 in the direction A2 is not transmitted to the winding pinion 34, and an idling occurs between the wheel clutch 32 and the winding pinion 34.
    Most parts of the winding mechanism by hand or the main part of the hand winding mechanism 4 is arranged between the first bridge 10 and the automatic gear wheel bridge 7.
    The main part of the hand winding mechanism 4 comprises a structure of the crown wheel 40, the sliding ratchet spring structure 1 as a sliding ratchet structure 50 and a spring return structure of a piece. timepiece, and a second transmission wheel structure 70.
    As visible in FIGS. 2D and fig. 1, the crown wheel structure 40 comprises a lower level crown wheel 41 which is located on the platen side 6 of the first bridge 10 and an upper level crown wheel 42 which is concentric with the lower crown wheel 41 and which is located in the concave portion 11 on the side of the automatic gearbridge 7 of the first deck 10. The lower and upper level crown wheels 41 and 42 are rotated together about a central axis line B in the directions B1 and B2. The lower level crown wheel 41 meshes with a toothed outer peripheral portion 34b of the winding pinion 34. When the clutch wheel 32 and the winding pinion 34 are rotated in the direction A1 together with the rotation of the rod winding 30 in the A1 direction, the lower level crown wheel 41 is rotated in the direction B1 and the upper level crown wheel 42 is also rotated together in the direction B1.
    The sliding ratchet structure 50 comprises a bearing portion 51, a shaft portion 52, and a toothed portion of the sliding ratchet 53. The bearing portion 51 is pivotably and freely mounted in an elongated hole in the form of arc 19 (Fig. 1) which is formed on a thin portion 12 in the concave portion 11 of the first bridge 10 in the extension directions or longitudinal directions of the arcuate elongated hole 19 D1 and D2. The arc forms a part of the circle which is centered on the central axis line B. The bearing part 51 comprises a bearing main body part 51a which is cylindrical and which is freely mounted in the elongate hole 19 and a part flange 51b which is formed at one end of the main body of the bearing portion 51a on the platen side 6 of the thin portion 12 of the first bridge 10. The shaft portion 52 comprises a columnar main body portion 52a which is mounted in the cylindrical main bearing body portion 51a of the bearing portion 51 to be slidably rotated about a central axis line E in the directions E1 and E2 and a portion to large diameter 52b which is located at one end of the main body portion of the shaft 52a. The large diameter portion 52b is located on the platen side 6 of the rim portion 51b of the bearing portion 51. The ratchet toothed portion 53 is mounted in one end of the shaft main body portion 52a. on the side of the automatic wheel axle 7. That is, the sliding ratchet structure 50 is freely mounted in the arcuate elongate hole 19 of the first bridge 10 through the bearing portion 51 in the position in which it is interposed between the large diameter portion 52b at one end of the shaft portion 52 and the rim portion 51b of the bearing portion 51b and the ratchet tooth portion 53 at the other end of the shaft portion 52.
    Therefore, the sliding ratchet structure 50 is pivotable in the directions D1 and D2 between an engaged position Q1 in which the main body 51a of the bearing 51, in which is mounted the main body 52a of the shaft portion 52 , is recalled in the direction D1 and a non-geared position Q2 in which the main body 51a of the bearing 51 is biased in the direction D2.
    As described below, the sliding ratchet structure 50 receives an elastic return force F1 in the direction D1 thanks to the sliding ratchet spring structure 1 as a return spring structure reassembled by hand.
    The second transmission wheel structure 70 comprises a shaft portion 73 which is supported by a bearing portion 71 of the first bridge 10 and a bearing portion 72 of the automatic wheel axle 7 to be rotated. around a center line J in the directions J1 and J2 and a toothed portion of the second transmission wheel 74 and a second transmission gear portion 75 which are attached to the shaft portion 73. The toothed portion the second transmission wheel 74 meshes with a gear train (not shown) of the automatic winding mechanism (not shown). The part of the second transmission pinion 75 engages with the ratchet 24. Therefore, the structure of the second transmission wheel 70 transmits, on one side, the rotation of the automatic gear (not shown) together with the rotation of the oscillating weight which is not illustrated in the drawing ratchet 24. Therefore, the mainspring 23 can be automatically reassembled by the ratchet 24.
    When the sliding ratchet structure 50 pivots at the position Q1 where it is biased in the direction D1, the toothed sliding ratchet portion 53 of the sliding ratchet structure 50 can mesh with the second transmission gear portion 75 of the structure of the second transmission wheel 70. When the toothed portion of the second transmission wheel 74 is rotated in the J1 direction by the operation of the automatic winding mechanism (not shown) and the sliding ratchet structure 50 rotates at the position Q2 where it is biased in the direction D2, the gear between the ratchet toothed portion 53 of the sliding ratchet structure 50 and the second transmission gear portion 75 of the second transmission wheel structure. 70 is released.
    Before describing in detail the sliding ratchet spring structure 1 as a return spring structure of a hand-wound timepiece, a portion of the first bridge 10 in which the sliding ratchet spring structure 1 is arranged will be described.
    The first bridge 10 comprises a concave portion of sliding ratchet spring arrangement 13 which is connected to the concave portion 11 through a zone 10a. In the lower portion of the surface 13a of the concave portion 13, a flat bottom portion 14 and convex portions 15a and 15b protruding from the bottom portion 14 are formed. In addition, an opening 16 is formed in a plate-like locking portion 13b slightly away from the bottom portion 13a. The aperture 16 penetrates the plate-like blocking portion 13b and connects a front-side surface 13c and a rear-side surface, i.e., a rear surface 13d of the wall 13c which forms the plate shape 13b to define the opening 16.
    A spring element 60 which consists of a cut and bent portion of a flat alloy spring and which configures the sliding ratchet spring structure 1 as a return spring structure of a timepiece. hand-wound comprises a plate-like positioning portion 61, a catch spring portion 62, a spring-engaging portion 63, and a return spring 64.
    The plate-shaped positioning portion 61 comprises a plate-shaped main body 61a. The positioning apertures 61b and 61c are formed in the plate-like main body portion 61a. The spring member 60 is positioned in the bottom surface portion 13a of the concave portion 13 so that the plate-like main body portion 61a which configures the plate-shaped positioning portion 61 touches the portion planar bottom 14 of the concave portion 13 of the first bridge 10 to the rear surface 61 d so that the convex portions 15a and 15b of the bottom portion 14 are mounted in the positioning apertures 61b and 61c of the main body portion in the form of plate 61a.
    The latching spring portion 62 includes a latching spring arm portion 65 and a locking end portion of the forced insertion 66. The latching spring arm portion 65 includes an arm portion. rear attachment member 65b which is connected to a marginal portion 61e of the plate-like main body portion 61a to a rear attachment portion 65a and extends from the rear attachment portion 65a and an end portion arm front 65d which is bent approximately perpendicular to the front end portion 65c of the rear attachment arm portion 65b. The locking end portion of the forced insertion 66 includes a locking projection 66a that extends horizontally from the front end portion of the front end portion of the arm 65d. In the lower flange side of the locking projection 66a, an inclined guide surface 66b is formed as an inclined guide surface of the forced insertion. In the upper side, a locking surface 66c that extends approximately horizontally is formed as a forced insertion blocking surface. When the openings 61b and 61c of the plate-shaped positioning portion 61 are mounted in the convex portions 15a and 15b of the plate-like bottom portion 14 of the concave portion 13, the rear attachment arm portion 65b and the front end arm portion 65d has a length through which the locking projection 66a which forms the forced insertion locking end portion 66 directly faces the opening 16 of the plate-shaped portion 13b.
    The spring positioning portion 63 includes a positioning spring arm portion 63a and a terminal attachment portion of the forced insertion 67.The spring positioning portion 63 is located opposite one side of the snap-fastening portion 62 where the locking projection 66a which configures the forced insertion locking end portion 66 protrudes. The positioning spring arm portion 63a includes a rear attachment arm portion 63c which is connected to the marginal portion 61e of the plate-like main body portion 61a in the rear attachment portion 63b and extends parallel to the rear attachment arm portion 65b of the engaging spring arm portion 65 of the rear attachment portion 63b. The terminal portion of the forced insertion attachment 67 includes a front end arm portion 67a which is bent approximately perpendicular to the front end portion 63d of the rear attachment arm portion 63c. The end portion of the forced insertion attachment 67 includes an inclined guide surface 67c at the leading end portion of a flange 67b facing the side facing the front end arm portion 65d of the portion. 62. When the openings 61b and 61c of the plate-shaped positioning portion 61 are mounted in the convex portions 15a and 15b of the plate-shaped bottom portion 14 of the concave portion 13, the rear attachment arm 63c has a length by which the front end arm portion 67a which forms the end portion of the forced insertion attachment 67 on the front end side directly faces a marginal portion of front end 16a and a marginal portion 16b which faces the side where is the attachment spring arm portion 65 of the opening 16 of the plate-shaped portion 13b.
    In the state immediately before the sliding ratchet spring structure 1 is arranged in the concave portion 13 of the first bridge 10, a gap W1 between the outer edge 65f of the front end arm portion 65d of the snap-fastening portion 62 and outer rim 67b of forcing insertion end portion 67 on the front end side of spring positioning portion 63 is larger than opening width K1 16.
    The return spring 64 comprises a return spring arm portion 68 which is adjacent to the flange 61e in the plate-like main body 61a which forms the plate-shaped positioning portion 61, facing the surface. wherein the projection 66a of the engaging spring portion 62 projects, and is connected to a flange 61f and an urging portion 69 which is formed on the forward end side of the return spring arm portion 68. The portion return spring arm 68 comprises a rear attachment portion 68a which is connected to the flange 61f of the plate-like main body portion 61a and is bent approximately perpendicularly to the flange 61f and to a main body portion of the arm return spring 68b which extends in a plate approximately parallel to the rear attachment arm portion 65b of the spring arm engaging portion 65 of the spring portion of the spring and the spring arm positioning portion 63a of the spring positioning portion 63 of the rear attachment portion 68a. In addition, in order to reduce the spring constant, the main body portion of the return spring arm 68b comprises a back spring arm main body attachment portion 68c and a front main body front end portion. 68d return spring arms that are bent in the extension surface to ensure the length of the arm. The pressing portion 69 includes an elongated portion 69a which is connected to the front end portion of the return spring arm main body 68d in the main body portion of the return spring arm 68b and has a relatively large width. Therefore, the return spring portion 64 is elastically and flexibly deformable in the directions H2 and H1 so that the pressing portion 69 approaches or separates from the spring positioning portion 63 or the portion snap spring 62.
    In the sliding ratchet spring structure 1 as a manual winding return spring structure which is configured like this, in a state immediately before the mounting of the automatic gear wheel bridge 7 and in the state where a gear train or similar to that which configures the hand winding mechanism 2 is assembled in the first bridge 10, when an area which comprises the plate-like positioning portion 61, the hanging spring portion 62, and the positioning portion of spring 63 (a few mm <2> of the surface) is inserted by a finger or the like in the state where the sliding ratchet spring structure 1 is arranged in a predetermined position so that the openings 61b and 61c of the plate-like main body portion 61a of the plate-shaped positioning portion 61 are mounted in the convex portions 15a and 15b of the concave portion 13 of the first bridge 10, the terminal attachment portion of the the forced insertion 67 of the spring positioning portion 63 of the approximately 1-positioned sliding ratchet structure 1 is inserted into the opening 16 in the M1 direction along the marginal portion 16a and 16b of the opening 16 by mounting between the openings 61b and 61c of the plate-shaped positioning portion 61 and the convex portions 15a and 15b of the first bridge 10. In addition, the terminal blocking portion of the forced insertion 66 of the portion of The engaging spring 62 of the sliding ratchet spring structure 1 is also inserted along the edges of the opening 16. Here, in a case where the engaging spring portion 62 is inserted along the edges of the 16 of the forced insertion locking end portion 66, the forced insertion locking end portion 66 is resiliently displaced in the M1 direction during insertion along the inclined guide surface 66b of the removed from the front end. When the locking projection 66a reaches the rear surface 13d of the wall 14 which defines the opening 16, the locking surface 66c of the locking end portion of the forced insertion 66 comes into contact with the rear surface 13d of the wall 14. At this time, the locking surface 66c of the locking end portion of the forced insertion 66 is pressed against the rear surface 13d of the wall 14 by an elastic return force of the engaging spring arm portion. 65 of the latching spring portion 62 in the direction M2, which is curved in the direction M1 to a certain extent. Further, since the flange 67b of the forced insertion fastening end portion 67 of the spring positioning portion 63 receives a force in the direction T1 of the marginal portion 16b of the opening 16, the marginal portion 65f where the terminal blocking portion of the forced insertion 66 is also pressed in the T1 direction against the rim facing the opening 16. As a result, even if an unexpected force is applied, the end portion of blocking the forced insertion 66 is maintained in the state where there is less concern that it will be removed from the wall 13e of the opening 16.
    In addition, after the mounting is finished, the return spring portion 65 can be bent in the direction H2 and the pressing portion 69 can be withdrawn in the direction H2 or the direction D2 of the sliding ratchet structure 50 in order to be in contact with the outer periphery of the ratchet toothed portion 53 of the sliding ratchet structure 50 and to be squeezed. In this manner, the sliding ratchet spring structure 1 applies the biasing force F1 to the sliding ratchet tooth portion 53 of the sliding ratchet structure 50 in the direction D1 by the return spring portion 64 in the position where it is mounted in the concave portion 13 of the first bridge 10.
    Here, when the sliding ratchet spring structure 1 is mounted at a predetermined position, the position and the posture of the sliding ratchet spring structure 1 relative to the first bridge 10 of the plate-shaped positioning portion. 61 can be held constant in practice by the spring positioning portion 63 and the engaging spring portion 62. That is, in the sliding ratchet spring structure 1, the position and the posture of the Ratchet spring structure 1 sliding relative to the first bridge 10 of the plate-shaped positioning portion 61 can be held constant in practice regardless of the pivoting position or the bending position of the pressing portion 69 of the portion of return spring 64 in the directions H1 and H2.
    Thus, even when the sliding ratchet structure 50 withdraws to the non-engaged position Q2, the hand winding mechanism 2 having the sliding ratchet spring structure 1 receives the restoring force reliably at the engaged position Q1 through the return spring portion 64. Therefore, meshing between the sliding ratchet structure 50 and the second transmission wheel 70 during hand winding can be reliably achieved.
    In addition, even when the hand winding mechanism 2 receives a force through which the front end of the pressing portion 69 of the return spring portion 64 pivots to the rear side of the housing in the direction U1 , the locking projection 66a prevents the plate-shaped positioning portion 61 from moving in the direction U1. Therefore, even when the hand wind mechanism 2 receives an unexpected external force such as a small shock, there is less concern that the sliding ratchet spring structure 1 could be removed. Subsequently, the assembly is completed after the automatic gearbox bridge 7 or the like is mounted.
    The ratchet spring structure sliding as a return spring structure of a hand-wound timepiece can be made available without the spring positioning portion. According to another preferred embodiment of the present invention illustrated in FIGS. 6 and 7, the same reference numbers are given to the same components as those illustrated in FIGS. 1 to 5. The components in figs. 6 and 7 which correspond approximately to those in FIGS. 1 to 5 but have different points with an A after my same reference numbers.
    As illustrated in FIG. 7, a sliding ratchet spring structure 1A according to another preferred embodiment of the present invention is the same as the sliding ratchet spring structure 1 shown in FIG. In that a plate-shaped positioning portion 61A, a catch spring portion 62A, and a return spring portion 64 are provided, but differs from the sliding ratchet spring structure 1 illustrated in FIG. . 5 in that the spring positioning portion 63 is cut and the engaging spring portion 62A has a shape or a different structure than that of the spring portion 62. In addition, the plate-shaped positioning 61A can in to some extent also have a different shape so that the engaging spring portion 62A has a suitable shape. A hand-wound timepiece 3A according to another preferred embodiment of the present invention having a hand winding mechanism 2A according to another preferred embodiment of the present invention illustrated in FIG. 6 differs from the timepiece with manual winding 3 having the hand winding mechanism 2 illustrated in FIG. 1 in that the sliding ratchet spring structure 1A is provided instead of the sliding ratchet spring structure 1.
    In the sliding ratchet spring structure 1A which consists of a spring element 60A in the form of a curved plate illustrated in FIGS. 7 and 6, the engaging spring body 62A includes a catch spring arm portion 65A and a locking end portion 66. The catch spring arm portion 65A is connected to a marginal portion 61eA of the plate-like positioning portion 61a to a rear attachment portion 65aA, and includes a twisted rear attachment arm portion 65g extending from the Z-shaped backward stretching attachment portion 65aA, an arm portion of vertical rear attachment or an intermediate arm portion 65bA which changes direction from an extension end of the twisted rear attachment arm portion 65g and extends approximately parallel to the return spring portion 64, and a front end arm portion 65dA which is bent approximately perpendicular to the front end 65cA of the vertical rear attachment arm portion 65bA. In the example shown in the drawing, the twisted rear attachment arm portion 65g includes a first arm portion 65g1 which extends to the return spring portion 64, a second arm portion 65g2 which changes direction of the the front end of the first arm portion 65g1 and extends approximately parallel to the return spring portion 64, and a third arm portion 65g3 which changes direction of the forward end of the second arm portion 65g2 and extends back to the return spring portion 64. The forced insertion lock end portion 66 includes a lock projection 66a that extends horizontally from the front end portion of the end portion. front end of 65dA arm. In the lower side of the locking projection 66a, an inclined guide surface 66b is formed as an inclined forced insertion guide surface. In the upper side, a locking surface 66c that extends approximately horizontally is formed as a forced insertion blocking surface. The aforementioned points are the same as in the case of the forced insertion locking end portion 66 of the engaging spring portion 62 of the sliding ratchet spring structure 1.
    Since the engaging spring portion 62A (its attachment spring arm portion 65A) is provided with the twisted rear attachment arm portion 65g, the sliding ratchet spring structure 1A can rotate in the directions. L1 and L2. Further, the engaging spring portion 62A is easily resiliently pivoted in the directions T1 and T2 to the engaging spring arm portion 65A relative to the engaging spring portion 62 (its arm portion engaging spring 65) of the sliding ratchet spring structure 1. Therefore, even when the spring positioning portion 63 is not independently provided, the engaging spring portion 62A is pressed in the direction T1 against a rim facing the opening 16 of the first bridge 10 by the forced insertion locking end 66 by a resilient force of the engaging spring arm portion 65A in the directions T1 and T2.
    Since the sliding ratchet spring structure 1A is also provided with the plate-shaped positioning portion 61A and the engaging spring portion 62A, the mounting on the first bridge 10 can be realized simply and reliably. and the concern that the sliding ratchet structure 1A can be removed from the first bridge 10 can be substantially suppressed.
    In the sliding ratchet spring structure 1A, since the spring positioning portion 63 of the sliding ratchet spring structure 1 is cut, the locking operation by the engaging spring portion 62A may vary. depending on the pivoting position of the return spring portion 64A in the directions H1 and H2.
    In the ratchet spring structure sliding as a return spring structure of a hand-wound timepiece, the engaging spring portion, the spring positioning portion, and the spring portion. can be extended in different directions instead of the same direction (approximately parallel). According to an always other preferred embodiment of the present invention illustrated in FIGS. 8 and 9, the same reference numbers are given to the same components as those illustrated in FIGS. 1 to 5. The components in figs. 8 and 9 which correspond approximately to those in FIGS. 1 to 5 but which have different points bears a B after the same reference numbers.
    As illustrated in FIG. 9, a sliding ratchet spring structure 1B according to yet another preferred embodiment of the present invention differs from the sliding ratchet spring structure 1 illustrated in FIGS. 1 to 5 in that a return spring portion 64B extends in the intercrossing direction, more particularly in the direction approximately perpendicular to the extension directions of the engaging spring portion 62B and a spring positioning portion. 63B instead of extending approximately parallel to the latching spring portion and the spring positioning portion.
    More specifically, as illustrated in FIG. 9, in the sliding ratchet spring structure 1B which consists of a spring member 60B in the form of a curved plate body, the return spring portion 64B is not connected to a marginal portion 61fB, which is adjacent to the marginal portion 61eB to which the rear attachment portions 65a, 63b of the engaging spring portion 62B and the spring positioning portion 63B are connected, but is connected to a marginal portion 61g on the side opposite in a plate-shaped positioning portion 61B.
    Here, the shape and the structure of the return spring portion 64B are in practice the same as those of the return spring portion 64. That is to say, the return spring 64B comprises a part a return spring arm 68B which is connected to the flange 61g of the plate-shaped positioning portion 61B and an urging portion 69 which is formed at the forward end of the return spring arm portion 68B. The return spring arm portion 68 includes a rear attachment portion 68aB that is bent approximately perpendicular to the flange 61g and a return spring arm main body portion 68bB that extends approximately perpendicular to the portion of the rear attachment side arm 65b of the engaging spring portion 62B and the spring arm positioning portion 63a of the spring positioning portion 63B of the rear attachment portion 68aB. The main body portion of the return spring arm 68bB comprises a main body portion of the spring back attachment arm 68cB and a main body part of the spring front attachment arm 68dB which are bent in the surface. extension. An urging portion 69 includes an elongate portion 69aB that is connected to the front end of the main body portion of the spring front attachment arm 68dB in the spring rest main body portion 68bB and has a width relatively large. Therefore, the return spring portion 64B is elastically and flexibly deformable in directions H2 and H1 so that the pressing portion pivots 69B.
    In the spring positioning portion 63B, in contrast to the spring positioning portion 63 illustrated in FIGS. 1 to 5, when an external force is applied to the return spring portion 64B in the direction U1 direction (Fig. 9), a forced insertion fastening end portion 67B has a projection 67d, which is the same as the protrusion 66, in the outer peripheral rim 67bB to prevent the plate-shaped positioning portion 61B from being rotated in the direction U1. More specifically, the projection 67d of the forced insertion fixing end portion 67B of the spring positioning portion 63B includes an inclined guide surface 67e which is the same as the guide surface 66b of the projection 66a (although slanted in opposite direction) and a locking surface or guiding blocking surface 67f which is approximately the same as the locking surface 66c of the projection 66a, but inclined instead of extending horizontally.
    In addition, since the protrusion 67d of the forced insertion fastening end portion 67B of the spring locating portion 63B has a locking guide surface 67f, a protrusion 66B of the engaging spring portion 62B also has a guide blocking surface 66cB which is inclined instead of extending horizontally in order to make possible the removal of the engaging spring portion 62B.
    In addition, in the sliding ratchet spring structure 1B, since the relative arrangement and shapes (structures) of the engaging spring portion 62B, the spring positioning portion 63B, and the portion 64B of the return spring 64B which are described above are to a certain extent different from the corresponding parts of the sliding ratchet spring structure 1, the plate-shaped positioning portion 61B also has a shape different from that of the positioning part In this example, the plate-shaped positioning portion 61B has an opening 61bB instead of two.
    A hand-wound timepiece 3B according to another preferred embodiment of the present invention having a hand winding mechanism 2B according to another preferred embodiment of the present invention illustrated in FIG. 8 differs from the timepiece with manual winding 3 having a hand winding mechanism 2 illustrated in FIG. 1 in that the sliding ratchet spring structure 1B is provided instead of the sliding ratchet spring structure 1.
    In the sliding ratchet spring structure 1B, since both the engaging spring portion 62B and the spring positioning portion 63B have the projections 66a and 67d, the spring positioning portion 63B in addition of the engaging spring portion 62B may also prevent the sliding ratchet spring structure 1B from being removed. In this case, the marginal portion 65f of the engaging spring portion 62B has the locating function to make it possible to block by the locking surface 67f of the projection 67d of the spring positioning portion 63B. That is, the latching spring portion 62B and the spring positioning portion 63B both have the positioning and latching functions for themselves.
    In addition, in the sliding ratchet spring structure 1B, since the engaging spring portion 62B and the spring positioning portion 63B have both the projections 66a and 67d which have the locking surfaces 66cB and 67f. at their outer peripheral rim, the return spring portion 64B extends in the direction which is not parallel to the engaging spring portion 62B and the spring locating portion 63B but is perpendicular to the direction of travel. extension of the spring portions 62B and 63B. Therefore, even when the holding force is weakened to some extent, the original part of the sliding ratchet spring structure 1B, i.e., the plate-shaped positioning portion 61B can be maintained at a predetermined position in the concave portion 13 of the first bridge 10 against the external force which is applied to the return spring 64B in the directions U1 and U2.
    In addition, similarly to the case of the sliding ratchet spring structure 1A illustrated in FIG. 7 in which the spring positioning portion 62 is cut into the sliding ratchet spring structure 1 shown in FIG. 5, a sliding ratchet spring structure 1C may be used as a return spring structure of a manually wound timepiece in which the spring positioning portion 62B is cut into the sliding ratchet spring structure 1B illustrated in FIG. 9.
    According to an always other preferred embodiment of the present invention illustrated in FIGS. 10 and 11, the same reference numbers are given to the same components as those illustrated in FIGS. 1 to 5 and the same reference numbers are given to the same components as those illustrated in FIGS. 8 to 9 (the same applies to components when B is added at the end). The components in figs. 10 and 11 which correspond approximately to those in FIGS. 8 to 9 but which have different points add a C after the same reference numbers (the reference number B is excluded if a C is positioned at the end).
    As illustrated in FIG. 11, the sliding ratchet spring structure 1C according to another preferred embodiment of the present invention is approximately the same as the sliding ratchet spring structure 1B shown in FIG. 9, in that the plate-shaped positioning portion 61C, the engaging spring portion 62C, and the return spring portion 64B are provided, and is different from the sliding ratchet spring structure 1B illustrated in FIG. . 9 in that the spring positioning portion 63B is cut out and the engaging spring portion 62C has a shape or structure differing to a certain extent from those of the engaging spring portion 62B. In addition, the plate-shaped positioning portion 61C may also have a different shape to some extent so that the engaging spring portion 62C has a suitable shape and function. A hand-wound timepiece 3C according to yet another preferred embodiment of the present invention having a hand winding mechanism 2C according to yet another preferred embodiment of the present invention illustrated in FIG. 10 differs from the manually wound timepiece 3B having the hand winding mechanism 2B shown in FIG. 8 in that the sliding ratchet spring structure 1C is provided instead of the sliding ratchet spring structure 1B.
    In the sliding ratchet spring structure 1C which consists of a spring member 60C in the form of a curved plate body illustrated in FIGS. 11 and 10, the engaging spring portion 62C includes a catch spring arm portion 65C that has a large width and relatively high rigidity and a forced insertion lock end portion 66. The snap spring arm 65C is connected to a marginal portion 61eC of the plate-like main body portion 61a in the rear attachment portion 65aC, and includes a rear attachment arm portion 65bC extending from the rear attachment portion 65aC and a front end arm portion 65dC which is bent and extends approximately perpendicular to the front end 65cC of the rear attachment arm portion 65bC. The forced insertion lock end portion 66 includes a lock protrusion 66a that extends horizontally from the front end of the front end arm portion 65dC. In the lower flange side of the locking projection 66a, the sloping guide surface 66b is formed as an inclined forced insertion guide surface. In the upper side, the approximately horizontally extending locking surface 66c is formed as a forced insertion blocking surface. The aforementioned points are the same as in the case of the forced insertion locking end portion 66 of the engaging spring portion 62 of the sliding ratchet spring structure 1. The return spring portion 64B has in practice the same shape and position as that of the return spring portion 64B of the sliding ratchet spring structure 1B shown in FIG. 9.
    In the sliding ratchet spring structure 1C, the stiffness of the engaging spring portion 62C (of its engaging spring arm portion 65C) is relatively high. Therefore, even when the spring positioning portion 63 is not independently provided, the plate-shaped positioning portion 61C which defines a reference position of the sliding ratchet spring structure 1C is held at a position predetermined position of the first bridge 10 at a desired posture by mounting between an opening 61bC of the plate-shaped positioning portion 61C and the projection 15a of the concave portion 13 of the first bridge 10 and by engaging or locking between the positioning projection and blocking 66 and the rear surface 13d (see Fig. 2A to 2D) of the plate-shaped portion 13b of the rim of the opening 16 of the first bridge 10.
    In the sliding ratchet spring structure 1C, since the plate-shaped positioning portion 61C and the engaging spring portion 62C are provided, the mounting on the first bridge 10 can be made easily and reliably. and the concern that the sliding ratchet structure 1C can be removed from the first bridge 10 can be substantially eliminated.
    In addition, since the spring positioning portion 62B is cut into the slidable ratchet spring portion structure 1C, the locking operation due to the engaging spring portion 62C may vary depending on the positions of pivoting of the return spring portion 64B in the directions H1 and H2 and the pivoting effect of the return spring portion 64B in the direction U1 can be obtained easily. In addition, in the sliding ratchet spring structure 1C, since the stiffness of the engaging spring portion 62C is relatively high, there is the concern that backlash may be caused to some extent by the manufacturing tolerance of the spring portion 62C and the tolerance of the convex and concave portions corresponding to the concave portion 13 of the first bridge 10.
    权利要求:
    Claims (8)
    [1]
    1. Return spring structure (1) for a hand-wound timepiece (3) comprising:a plate-shaped positioning portion (61) arranged to be placed on a surface of a support member (10);an engaging spring portion (62) arranged to be inserted into an opening (16) of a plate-like locking portion (13b) of the support member (10) having a locking end portion ( 66), which is intended to be locked against a rear surface (13d) of a wall (14) defining the opening (16) in the plate-like locking portion (13b), and being provided with a portion hook spring arm (65) extending from a first edge (61e) of the plate-like locating portion (61), anda return spring portion (64) extending from a second edge (61f) of the plate-shaped positioning portion (61).
    [2]
    2. Return spring structure (1) of a timepiece with manual winding (3) according to claim 1, further comprisinga spring positioning portion (63) which includes a positioning portion of the spring arm (63a) extending parallel to the engaging spring arm portion (62) from the first edge (61e) of the portion plate-shaped positioning device (61), and a fixing end portion (67) arranged to be forced into the opening (16) of the support member (10) at its front end portion.
    [3]
    A return spring structure (1) of a manually wound timepiece (3) according to claim 1 or 2, wherein the locking end portion (66) of the engaging spring portion (62) ) has a forced insertion guide inclined surface (66b) as the front end and a forced insertion blocking surface (66c) as the rear attachment end.
    [4]
    4. A return spring structure (1) of a timepiece with manual winding (3) according to any one of claims 1 to 3,wherein the second edge (61f) of the plate-like positioning portion (61), which is connected to the portion of the return spring (64), is located on the side opposite the first edge (61e), which is connected at the latching spring portion (62) of the plate-shaped positioning portion (61),the return spring portion (64) extending in a direction concurrent with that of the engaging spring arm portion (65) of the engaging spring portion (62).
    [5]
    5. Return spring structure (1) of a timepiece with manual winding (3) according to any one of claims 1 to 3,wherein the second edge (61f), which is connected to the return spring portion (64) of the plate-like locating portion (61), is adjacent to the first edge (61e) of the locating portion (61). ) in the form of a plate, which is connected to the hanging spring portion (62), andthe return spring portion (64) extends parallel to the engaging spring arm portion (65) of the engaging spring portion (62).
    [6]
    6. Return spring structure (1) of a timepiece with manual winding according to (3) any one of claims 1 to 5,wherein the plate-shaped positioning portion (61) has an opening (16) which is arranged to engage a convex portion projecting from the surface of the support member (10).
    [7]
    7. Hand winding mechanism (2) comprisingthe return spring structure (1) of a timepiece with manual winding (3) according to one of claims 1 to 6, a sliding ratchet (50) and a second transmission wheel (70), the part of return spring (64, 64A, 64B) being arranged to apply an elastic force to the sliding ratchet (50) to move the latter from a non-engaged position (Q2) with the second transmission wheel (70) to an interengaged position (Q1) with said second transmission wheel (70).
    [8]
    8. Hand-wound timepiece (3) comprising the manual winding return spring structure (1) according to any one of claims 1 to 6 or the hand winding mechanism (2) according to claim 7 .
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    同族专利:
    公开号 | 公开日
    CN102681416A|2012-09-19|
    JP5844985B2|2016-01-20|
    DE102012101763A1|2012-09-13|
    US20120230160A1|2012-09-13|
    CN102681416B|2014-11-05|
    JP2012189331A|2012-10-04|
    CH705047A2|2012-11-15|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2011050672A|JP5844985B2|2011-03-08|2011-03-08|Return spring structure for hand-wound watch, hand-wound mechanism and hand-wound watch with the same|
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