• 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 goal is to propose a mechanism module allowing a reduction of the thickness of the watch movement. A mechanism module 21 comprises: a gear train comprising a plurality of gear wheels; a 40A gear drive motor; a receiving terminal 47b provided at a first height position A in a predetermined direction and able to receive an electrical signal for driving the motor 40A from an external component; and a gear train 52 protruding from the first height position A, in the predetermined direction, to a second height position B. At the first height position A, a first circuit block 123 electrically connected to the 47b can be mounted at a position different from the gear wheel bridge 52.
    公开号:CH712680A2
    申请号:CH00894/17
    申请日:2017-07-11
    公开日:2018-01-15
    发明作者:Fujiwara Toshiyuki；Fujita Kazuhiro；Kotanagi Susumu；Kawata Masayuki
    申请人:Seiko Instr Inc；
    IPC主号:
    专利说明:

    Description TECHNICAL FIELD [0001] The present invention relates to a mechanism module, a movement and a timepiece.
    Prior Art [0002] An analog timepiece comprises a gear train comprising a plurality of gears, a motor driving the gear train, and an integrated circuit controlling the motor. For example, patent document 1 mentioned below describes an electronic device of the type to be fastened (timepiece) comprising a module (mechanism module) comprising a gear arrangement (s) comprising at least one rotating gear wheel and a stepper motor with a rotor rotatably connected to the rotating gear, and a bare printed circuit receiving a controller rotating the rotor of the module. In this attachment type electronic apparatus, the bare printed circuit board is positioned on the module and is fixed in its position by means of screws.
    Representative documents of the prior art
    Patent Document [0003] Patent Document 1: JP-T-2012-516 996 [0004] In the conventional constitution described above, the mechanism module and the naked circuit board are stacked, so that there are improvement possibilities in terms of reducing the thickness of the movement including the mechanism module and the circuit. SUMMARY OF THE INVENTION [0005] An object of the present invention is therefore to provide a mechanism module, a movement and a timepiece for reducing the thickness of the movement.
    According to the present invention, there is provided a mechanism module comprising: a gear train comprising a plurality of gear wheels; a drive motor of the gear train; a receiving terminal provided at a first height position in a predetermined direction and capable of receiving an electrical signal for driving the motor from an external component; and a protruding portion protruding from the first height position, in the predetermined direction, to a second height position, wherein, at the first height position, a first circuit plate (s) electrically connected to the terminal The receiving device may be mounted at a position different from the projecting portion. According to the present invention, at the first height position and at a position different from the projecting portion, a first circuit board (s) may be mounted. so that by giving the first circuit board (s) a shape avoiding the protruding portion, it is possible to reduce the thickness of the movement provided with the mechanism module and the first circuit board (s) without reduce the thickness of the mechanism module in the predetermined direction. Thus, it is possible to provide a mechanism module for reducing the thickness of the movement.
    In the above mechanism, it is desirable that a second circuit board (s) can be mounted at the second position in height, and that the receiving terminal can be electrically connected to the second circuit board ( s) via a relay element arranged at the first height position.
    According to one embodiment of the present invention, the second circuit board (s) can be mounted in the second position in height, so that there is no need for the second circuit board (s) ) has a shape avoiding the protruding portion. As a result, it is possible to perform a movement comprising a second circuit board (s) large area. Thus, it is possible to provide a mechanism module having a high general versatility allowing the mounting of any of the first and second circuit boards (s) according to the functions required for movement.
    In addition, with regard to the receiving terminal electrically connected to the first electrical circuit, it is possible for the conduction at the second circuit board (s) arranged at a different position from the first circuit board (s). in the predetermined direction is performed by the relay element, so that the first circuit board (s) and the second circuit board (s) have the ability to share the receiving terminal in a simple constitution.
    In the mechanism module above, it is desirable that there is provided a spacer which is held between itself and the second circuit board (s).
    In one embodiment of the present invention, it is possible to mount the second circuit board (s) in a configuration in which a step is filled because of the spacer. Thus, it is possible to reliably secure the second circuit board (s) to the mechanism module.
    A movement according to the present invention is characterized in that it comprises the above mechanism module and the first circuit board (s).
    According to the present invention, the first circuit board (s) is mounted at the first position in height, so that, compared to the constitution in which the circuit board is mounted at the second position in height, it is possible to achieve a reduction in the thickness of the movement.
    In the above motion, it is desirable that the first circuit board (s) has an annular shape comprising an opening where there is the protruding portion.
    According to one embodiment of the present invention, it is possible to obtain an improvement in terms of robustness of the first circuit board (s) by comparison in the case where the first circuit board (s) is shaped of C to avoid the protruding portion.
    A movement according to the present invention is characterized in that it comprises the above mechanism module and the second circuit board (s).
    According to one embodiment of the present invention, the second circuit board (s) is mounted at the second height position, above the projecting portion, so that there is no need to give the second circuit board (s) a shape avoiding the projecting portion, which allows to propose a movement comprising the second circuit board (s) having a large area. As a result, it is possible to provide more circuits on the second circuit board (s), so that it is possible to provide a high performance movement.
    A timepiece according to the present invention is characterized in that it comprises the movement above-above.
    According to the present invention, in the case where the movement comprises the first circuit board (s), it is possible to obtain a reduction in the thickness of the timepiece and, in the case where the movement includes the second circuit board (s), it is possible to increase the performance of the timepiece.
    According to the present invention, it is possible to provide a mechanism module for reducing the thickness of the movement.
    Brief description of the drawings [0022]
    Fig. 1 is a plan view of a timepiece according to one embodiment.
    Fig. 2 is a section of the timepiece according to the embodiment.
    Fig. 3 is a perspective view of a mechanism module according to the embodiment and shows this mechanism module as viewed from the front side.
    Fig. 4 is a plan view of the internal constitution of the mechanism module according to the embodiment and shows this internal constitution as seen from the front side.
    Fig. 5 is an enlargement of a section of a first movement according to the embodiment.
    Fig. 6 is a perspective view of a winding block of a first motor according to the embodiment.
    Fig. 7 is a plan view of the first movement according to the embodiment and shows it as seen from the front side.
    Fig. 8 is a perspective view of the mechanism module and a relay circuit board according to the embodiment, and shows them as seen from the front side.
    Fig. 9 is a bottom view of the first movement according to the embodiment and shows it as seen from the back side.
    Fig. 10 is a plan view of a second movement according to the embodiment and shows it as seen from the front side.
    Fig. 11 is an enlargement of a section of the second movement according to the embodiment.
    Fig. 12 is an enlargement of a section of the first movement according to a variant of the embodiment.
    Embodiment Description [0023] In the following, an embodiment of the present invention will be described with reference to the drawings. In the embodiment described below, an analog quartz-type electronic timepiece will be described by way of example.
    Embodiment Timepiece [0024] A mechanical assembly comprising the driving part of a timepiece is generally called a "movement". A completed product obtained by mounting a dial and hands on this movement and placing the assembly in a timepiece case is called a "finished product". In addition, on both sides of a platen forming the base piece of the timepiece, the side where the dial is located is called the "back side" of the movement. On both sides of the plate, the side where there is the caseback of the timepiece, that is to say the opposite side of the dial, is called the "front side" of the movement.
    FIG. 1 is a plan view of a timepiece according to one embodiment. Fig. 2 is a section of the timepiece according to the embodiment.
    As shown in FIGS. 1 and 2, the timepiece 1 in the finished product state comprises a movement 10, a dial 11, an hour hand 12, a minute hand 13 and a second hand 14 inside a timepiece case 4 comprising a caseback 2 and an ice 3. The dial 11 has a scale or the like indicating at least information relating to the time. The dial 11, the hour hand 12, the minute hand 13 and the second hand 14 are arranged to be visible through the lens 3. The case back 2 is made of a metallic material.
    As this is mounted in FIG. 1, among the portions of the side surface of the timepiece case 4, the one at the 2 o'clock position and the one at the 4 o'clock position are respectively provided with buttons 15. The buttons 15 are used, for example , to make time corrections to correct the time indicated by the hour hand 12 and the minute hand 13.
    Movement [0028] Now, movement 10 of the embodiment will be described. Movement 10 of the present embodiment includes a mechanism module 21. Two types of circuit blocks 23 and 123 may be provided on the mechanism module 21. In other words, the movement 10 is according to two alternatives: the one comprising the module with mechanism 21 and the first circuit block 23 (corresponding to what is called the "second circuit board (s)", "external component" in the claims) shown in FIG. 5 and that comprising the mechanism module 21 and the second circuit block 123 (corresponding to what is called the "first circuit board (s)" in the claims - external component) shown in FIG. 11. In the following description, among the movements 10, the movement comprising the mechanism module 21 and the first circuit block 23 will be called the first movement 10A and the movement comprising the mechanism module 21 and the second circuit block 123 will be called the second 10B movement.
    First movement [0029] First, we will describe the first movement 10A.
    As shown in FIG. 2, the first movement 10A is disposed on the front side of the dial 11 and on the rear side of the housing bottom 2. The first movement 10A comprises the mechanism module 21, on which the hour hand 12, the minute hand 13 and the seconds hand 14 are mounted, the first circuit block 23 disposed on the front side of the mechanism module 21 and controlling the drive of the mechanism module 21, a relay circuit board 24 (corresponding to the so-called I '). "Relay element" in the claims - see Fig. 8) disposed between the mechanism module 21 and the first circuit block 23, as well as a module frame 25 holding the mechanism module 21 and the first circuit block 23 .
    In the following description, the direction in which the axis of rotation O of the hour hand 12, the minute hand 13 and the second hand 14 extends will be called the axial direction. (Corresponding to what is called the "predetermined direction" in the claims), while any direction orthogonal to the axial direction and extending radially from the axis of rotation O will be called the radial direction. In the present embodiment, the axial direction coincides with the direction of the thickness of the timepiece 1 in the finished product state.
    Mechanism Module [0032] FIG. 3 is a perspective view of the mechanism module according to the embodiment and shows it as seen from the front side. Fig. 4 is a plan view of the internal constitution of the mechanism module according to the embodiment and shows this internal constitution as seen from the front side. Fig. 5 is an enlargement of a section of the first movement according to the embodiment. Fig. 4 shows in which arrangement the relay circuit board 24 is arranged on the mechanism module 21.
    As shown in FIGS. 3 to 5, the mechanism module 21 comprises a gear train 30 comprising a plurality of toothed wheels, a first motor 40A, a second motor 40B and a third motor 40C driving the gear train 30, a plate 51 and a gear wheel 52 carrying the gear train 30 , an hour wheel retainer 53 fixed to the plate 51, and a center wheel bridge 54 disposed between the plate 51 and the gear wheel 52.
    As shown in FIG. 3, the plate 51 constitutes the base part of the mechanism module 21. The plate 51 is disposed on the front side, in the axial direction, of the dial 11 (see Fig. 5). The plate 51 is made of plastic, which is a non-metallic material, in the form of a plate whose direction of thickness is in the axial direction.
    The gear train 52 is disposed on the front side, in the axial direction, of the plate 51. The gear train 52 is made of plastic, which is a non-metallic material, in the form of a plate whose direction of thickness is in the axial direction.
    As shown in FIG. 5, the hour wheel retainer 53 is attached to the rear side, in the axial direction, of the plate 51. The hour wheel retainer 53 is made of a metal material, in the form of a plate flat whose direction of thickness is the axial direction. The hour wheel retainer 53 is disposed on the front side of the end portion of the rear side of the plate 51 and is arranged to be spaced from the dial 11.
    The center wheel bridge 54 is made of a metal material, in the form of a flat plate whose direction of thickness is the axial direction. The center wheel bridge 54 has a through hole 54a extending therein, in the axial direction. A first cylindrical female screw 55 is engaged in the through hole 54a. The first female screw 55 is made of a metallic material. The first female screw 55 extends through the plate 51 from the rear side towards the front side, and protrudes from the plate 51 towards the front side. The first female screw 55 is in contact with the peripheral inner wall of the through hole 54a of the center wheel bridge 54. As a result, the center wheel bridge 54 and the first female screw 55 are electrically connected to each other. 'other.
    As shown in FIGS. 3 and 4, the first motor 40A, the second motor 40B and the third motor 40C are arranged on the front side of the outer edge of the plate 51 and around the axis of rotation O. The motors 40A to 40C have the same constitution. As a result, in the following description of the constitution of the motors 40A to 40B, the first motor 40A will be described by way of example. The components common to the motors 40A to 40C are designated by the same reference numbers and their descriptions will be omitted.
    FIG. 6 is a perspective view of a winding block of the first motor according to the embodiment.
    As shown in FIGS. 4 and 6, the first motor 40A comprises a winding block 41 comprising a winding wire 43 wound around a winding core 42, a stator 44 arranged to be in contact with both ends of the winding core 42 of the winding block 41, as well as a rotor 45 disposed in the rotor hole 44a of the stator 44.
    As shown in FIG. 6, the winding block 41 comprises the winding core 42, the winding wire 43 and a winding connecting circuit plate 46 attached to one end of the winding core 42.
    As shown in FIG. 4, the winding core 42 extends in a direction orthogonal to the axial direction and the radial direction. The winding core 42 is fixed to the plate 51 by screws 56 inserted into through holes 42a (see Fig. 6) at both ends.
    As shown in FIGS. 3 to 6, the winding connection circuit board 46 is a bare printed circuit board. The winding connection circuit board 46 is disposed on the front side of one end of the winding core 42 and is held together with the winding core 42 by means of the screws 56. The winding connection circuit board 46 extends from a stationary portion opposite the corresponding end of the winding core 42 towards the central portion of the plate as seen in the axial direction. Substantially at the central portion of the winding connection circuit plate 46 there is a pin insertion hole 46a through which a rod 51a is provided to project from the plate 51 towards the front side. At one end 46b, radially inner side, of the winding connection circuit plate 46, there is a through hole 46c through which a second cylindrical female screw 57 passes. The second female screw 57 extends through the plate 51, from the back side to the front side, and protrudes from the plate 51, towards the front side.
    As shown in FIG. 6, two connections 47 are made on the front face of the winding connection circuit board 46. The connections 47 extend in the direction in which the winding connection circuit board 46 extends. end of each connection 47, namely the end of the side of the winding core 42, is formed a welding terminal 47a to which the end of the winding wire 43 is welded. At the other end of each connection 47, that of the inner side in the radial direction, is formed a receiving terminal 47b receiving an electrical signal driving the first motor 40A.
    The end 46b of the winding connection circuit plate 46, that is to say the end on the inside in the radial direction, is disposed on the surface of the plate 51. The receiving terminals 47b of respective motors 40A to 40C are provided at a first position in height A in the axial direction (see Fig. 5).
    As shown in FIG. 4, the stator 44 is disposed on the inner side, in the radial direction, of the winding core 42. The stator 44 is secured to the winding core 42 by means of screws 56.
    The rotor 45 is carried so as to be rotatable by the plate 51 and the gear train 52 (see Fig. 3).
    The gear train 30 comprises a first gear train 30A transmitting the driving force of the first motor 40A, a second gear train 30B transmitting the driving force of the second motor 40B, and a third gear train 30C transmitting the driving force. the third engine 40C.
    The first wheel 30A comprises a first intermediate wheel hours 31, a second intermediate wheel hours 32 and a wheel hours 33. The first intermediate hour mobile is made, for example, plastic. The first intermediate hour mobile comprises a first hour intermediate gear 31a and a first hour intermediate gear (not visible), and is rotatably carried by the plate 51 and the gear wheel 52. The first wheel intermediate gear 31 hours engraine with the rotor gear 45 of the first 40A engine. The second intermediate mobile hours 32 is made, for example, plastic. The second hour intermediate wheel 32 comprises a second hour intermediate gear 32a and a second hour intermediate gear (not visible), and is rotatably supported by the plate 51 and the gear wheel 52. The second intermediate hour gear 32a engrains with the first intermediate gear of the hours of the first intermediate mobile of the hours.
    The hour wheel 33 is made of a metallic material. As shown in FIG. 5, the hour wheel is rotatably mounted on a central tube 62, on the rear side of the plate 51. The central tube 62 is retained by the plate 51. The central tube 52 extends coaxially with the axis of rotation O and protrudes from the main plate 51, rear side. The central tube 62 is made of a metallic material and is electrically connected to the hour wheel 33. The hour wheel comprises a gear wheel of the hours 33a engaged with the second intermediate gear of the hours of the second intermediate wheel of the hours 32 ( see Fig. 4). The hour wheel is carried by the hour wheel carrier 53. The hour wheel 33 is biased towards the platen side 51 (the front side in the axial direction), by a first dial washer 63 disposed between the hour wheel carrier 53 and the hour wheel 33a. The first dial washer is made of a metallic material. As a result, the hour wheel 33 and the hour wheel holder are electrically connected to each other via the first dial washer 63. The hour hand 12 is mounted on one end, rear side, of the hour wheel 33.
    As shown in FIG. 4, the second gear train 30B comprises a first center intermediate wheel 34, a second center intermediate wheel 35 and a center wheel 36. The first center intermediate wheel 34 is made of, for example, plastic. The first center intermediate wheel 34 has a first center gear 34a and a first center intermediate gear 34b, and is rotatably carried by the plate 51 and the train axle 52 (see FIG. 3). The first intermediate center gear 34a engages with the rotor 45 of the second motor 40B. The second center intermediate wheel 35 is made of, for example, plastic. The second center intermediate wheel 65 comprises a second center intermediate gear 35a and a second center intermediate gear (not visible), and is rotatably supported by the plate 51 and the gear bridge 52. The second center intermediate gear 35a engraine with the first center intermediate gear 34b of the first center intermediate gear 34.
    The center mobile 36 is made of a metallic material. As shown in FIG. 5, the center wheel 36 is rotatably inserted in the central tube 62 from the front side in the axial direction and is electrically connected to the center tube 62. The front end of the center wheel 36 is supported by the center wheel bridge 54. The center wheel 36 comprises a center gear 36a engaged with the second center intermediate gear of the second center intermediate wheel 35 (see Fig. 4). The center wheel 36 is biased rearwardly in the axial direction by a second dial washer 64 disposed between the center wheel bridge 54 and the center gear 36a, and is in contact with the open end. before the central tube 62. The second dial washer 64 is made of a metallic material. As a result, the center wheel 36 and the center wheel bridge 54 are electrically connected to each other via the second dial washer 64. The minute hand 13 is mounted on the rear end of the wheel. center 36.
    As shown in FIG. 4, the third wheel 30C comprises a sixth wheel 37, a fifth wheel 38 and a second wheel 39. The sixth wheel 37 is made, for example, of a plastic material. The sixth mobile 37 comprises a sixth gear 37a and a sixth gear 37b, and is rotatably carried by the plate 51 and the gear train 52 (see Fig. 3). The sixth gear 37a engages with the rotor gear 45 of the third motor 40C. The fifth mobile 38 is made, for example, of a plastic material. The fifth mobile includes a fifth gear 38a, and is rotatably supported by the plate 51 and the gear train 52. The fifth gear 38a engages with the sixth gear 37b of the sixth gear 37.
    The mobile seconds 39 is made of a metallic material. As shown in FIG. 5, the seconds gear 39 is arranged coaxially with the axis of rotation O. The seconds mobile 39 has a shaft 39a and a second gear 39b 39a fixed to the shaft 39a. The shaft 39a is inserted, so as to be rotatable, in the center mobile 36. As a result, the seconds mobile 39 is electrically connected to the center mobile 36. The front portion of the seconds mobile 39 is pivoted in a pad 52a provided on the gear train 52. The second hand 14 is mounted on the rear end of the shaft 39a. The second gear 39b is disposed on the front side, in the radial direction, of the center wheel axle 54. The second gear wheel 39b engages with the fifth gear 38a (see Fig. 4) of the fifth wheel 38 The seconds motive is biased aft in the axial direction by a third dial washer 65 disposed between the gear deck 52 and the second gear wheel 39b. The third dial washer 65 is made of a metallic material.
    Now, the gear wheel 52 will be described in detail. As shown in FIG. 3, the work axle 52 includes a main body portion 58 (corresponding to what is called the "protruding portion" in the claims), as well as several (four in the present embodiment) mounting arm portions 59 protruding from the main body portion 58. As seen from the axial direction, the main body portion 58 is formed in a shape that avoids the winding blocks 41 and the motor winding connection circuit plates 46. 40A to 40C. As shown in FIG. 5, the main body portion 58 is projecting at a second height position B which is shifted forwardly with respect to the first height position A, in the axial direction. The main body portion 58 has a through hole 58a coaxial with the through hole 54a of the center wheel bridge 54.
    The portions forming the mounting arm 59 are attached together by the screws 56 which fix the cores for winding 42 of the motors 40A to 40C. More specifically, in the present embodiment, the mounting arm portions 59 are attached together by the two screws 56 securing the winding core 42 of the first motor 40A, by the screw 56 which, among the screws 56 securing the core to winding 42 of the second motor 40B, also fixes the winding connection circuit board 46, and by the screw 56 which, among the screws 56 fixing the winding core 42 of the third motor 40C, also fixes the connection circuit board winding 46.
    First Circuit Block [0057] As shown in FIG. 2, the first circuit block 23 is mounted on the mechanism module 21 at the second above-mentioned height position B (see Fig. 5). The first circuit block 23 mainly comprises a circuit board main body 71 which is a printed circuit board, an integrated circuit (IC) 72 mounted on the circuit board main body 71, and a circuit unit 71. crystal oscillator 73.
    FIG. 7 is a plan view of the movement according to the embodiment and shows it as seen from the front side.
    As shown in FIG. 7, the circuit board main body 71 is formed in a circular shape, as seen in the axial direction. Holes formed in the circuit board main body 71 are a first screw insertion hole 71a, through which a first male screw 60 is screwingly engaged with the first female screw 55, and three second insertion holes are provided. screw 71b, in which pass second male screws 61 respectively threadingly engaged with the second female screws 57 (see Fig. 5).
    A ground terminal 74 is formed on the surface of the circuit board main body 71. The ground terminal 74 consists, for example, of a bare printed circuit and is formed on the opening edge of the first hole. insertion of screws 71 a. The ground terminal 74 is electrically connected to the housing bottom 2 (see Fig. 2) and is provided on an arm or the like via the housing bottom 2 so as to allow grounding.
    Three transmission terminal paths 75 are formed on the rear face of the main body in a circuit board 71. The transmission terminals 75 of the respective paths consist, for example, of printed circuits, each of which is formed around one of the second insertion holes 71 b. The transmission terminal 75 of each path is electrically connected to a receive terminal 47b of one of the motors 40A-40C via the relay circuit board 24 (see Fig. 5). The transmission terminal 75 transmits, at the receiving terminal 47b, an electrical signal for driving each of the motors 40A to 40C.
    As shown in FIG. 2, the integrated circuit 72 is formed, for example, by a CMOS, a programmable logic network (PLA) or the like. The integrated circuit 72 generates an electrical signal for driving the motors 40A to 40C. The crystal oscillator unit 73 contains a crystal oscillator oscillating at a predetermined frequency and is connected to the integrated circuit 72. As seen from the axial direction, the integrated circuit 72 and the crystal oscillator unit are arranged on the outer side, in the radial direction, of the mechanism module 21.
    An accumulator door 26 is disposed on the front side of the first circuit block 23. The battery door 26 is configured to be able to carry a battery 27. The terminal of the accumulator 27 more than the door 27 accumulator 26 is electrically connected to ground terminal 74 (see Fig. 7) of the first circuit block 23.
    Relay Circuit Plate [0064] FIG. 8 is a perspective view of the mechanism module and the relay circuit board of the embodiment.
    As shown in FIGS. 3 and 8, three relay circuit boards 24 are disposed between the plate 51 of the mechanism module 21 and the circuit board main body 71 (see Fig. 5) of the first circuit block 23. More specifically, the Relay circuit 24 are arranged at the first height position A (see Fig. 5) in the axial direction, on the winding connection circuit plates 46 of the motors 40A to 40C. As seen in the axial direction, each relay circuit board 24 is shaped to overlap with a portion of the winding connection circuit board 46 of one of the motors 40A-40C, i.e. from the central portion to the end 46b. The thickness, in the axial direction, of each relay circuit board 24 is equal to the distance between the receiving terminal 47b of each motor 40A to 40C and the end, on the front side in the axial direction, of the bridge of gears 52.
    Each relay circuit board 24 has a pair of relay conductors 28. The two relay conductors 28 respectively pass into through holes extending through the relay circuit board 24, in the axial direction, from the face rear of the relay circuit board 24, so as to be continuous with the front face of the relay circuit board 24. The two relay conductors 28 are in contact with the receiving terminals 47b of the motors 40A to 40C on the rear face of the relay circuit board 24, and are in contact with the transmission terminals 75 (see Fig. 5) of the circuit board main body 71, on the front face of the relay circuit board 24. As a result, the relay circuit board 24 electrically connects the receiving terminal 47b of the winding connection circuit board with the transmission terminal 75 of the circuit board main body 71.
    Each relay circuit board 24 has a first through hole 24a, where the rod 51a of the plate 51 is disposed, and a second through hole 24b, where the second female screw 57 is disposed. The rod 51a of the plate 51 is caused to penetrate into the first through hole 24a, while the second female screw 57 is caused to penetrate into the second through hole 24, whereby each relay circuit board 24 can be positioned.
    As shown in FIG. 5, the mechanism module 21 and the first circuit block 23 are fixed to each other by screwing the first male screw 60 made of a metal material into the first female screw 55, and screwing three second male screws 61 respectively in the second female screws 57. More specifically, the first male screw 60 is inserted into the first screw insertion hole 71a of the circuit board main body 71, from the front side, and is screwed into the first screw In this procedure, the head of the first male screw 60 comes into contact with the ground terminal 74 formed on the circuit board main body 71. As a result, the ground terminal 74 is electrically connected to the bridge. center wheel 54 via the first male screw 60 and the first female screw 55. The second male screws 61 are respectively inserted into the second screw insertion holes 71b of the plate main body 71, from the front side, and they are screwed into the second female screws 57. As a result, the second male screws 61 and the second female screws 57 cause the relay circuit board 24 to be held between the circuit boards winding connection 46 and the circuit board main body 71.
    Module Frame [0069] FIG. 9 is a bottom view of the movement according to the embodiment and shows it as viewed from the back side.
    As shown in FIGS. 2 and 9, the module frame 25 is in the form of a disk having substantially the same diameter as the first circuit block 23. The thickness, in the axial direction, of the module frame 25 coincides with the thickness in the axial direction of the mechanism module 21. The first circuit block 23, to which the mechanism module 21 is attached, is mounted in the module frame 25 from the front side. The module frame 25 is attached to the dial 11 from the back side.
    The module frame 25 includes a module receiving hole 25a and an element receiving recess 25b. At the central portion of the module frame 25, the module receiving hole 25a passes through the module frame 25 in the axial direction. The module receiving hole 25a is made in a form corresponding to the mechanism module 21 as seen in the axial direction. The mechanism module 21 is disposed in the module receiving hole 25a. At the periphery of the module receiving hole, the element receiving recess 25b is dug from the front face to the rear face of the module frame 25. The element receiving recess 25b is formed to avoid contact with the module receiving hole 25b. the elements of the first circuit block 23, such as the integrated circuit 72 and the crystal oscillator unit 73.
    Second movement [0072] Now, the second movement 10B will be described.
    FIG. 10 is a plan view of the second movement according to the embodiment and shows this second movement as viewed from the front side. Fig. 11 is an enlargement of a section of the second movement according to the embodiment.
    As shown in FIGS. 10 and 11, the second movement 10B comprises a mechanism module 21, a second circuit block 123 disposed on the front side of the mechanism module 21 and controlling the drive of the mechanism module 21, as well as a module frame 125 retaining the mechanism module 21 and the second circuit block 123.
    Second Circuit Block [0075] The second circuit block 123 is mounted on the mechanism module 21, at the first position in height A different from the gear bridge 52. The second circuit block 123 has mainly a main body in a plate. circuit 171 which is a bare printed circuit, as well as an integrated circuit and a crystal oscillator unit (not shown) mounted on the circuit board main body 171.
    As seen from the axial direction, the circuit board main body 171 is formed in an annular shape having an opening 171a where the gear train 52 is located. In other words, the main body plate The circuit-board main body 171 includes a main body annular portion 171 provided on the outer side, in the radial direction, of the mechanism module 21 as viewed in accordance with FIG. axial direction, as well as three extension portions 177 extending radially inwardly from the inner peripheral edge of the main body portion 176.
    The extension portions 177 extend respectively towards the front side of the ends 46b (see Figs 3 and 6) on the inner side, in the radial direction, of the winding connection circuit plates 46 of the 40A to 40C motors. Each extension portion 177 has a second screw insertion hole 171b in which is inserted the second male screw 61 screwed into the second female screw 57. The transmission terminal 75 is formed on the rear face of each portion of the 177. The transmission terminals 75 consist, for example, of bare printed circuits and are respectively formed around the second screw insertion holes 171b. The transmission terminals 75 transmit, at the receiving terminals 47b, an electrical signal for driving the motors 40A to 40C.
    Each extension portion 177 is superimposed on a receiving terminal 47b from the front side, so that the transmission terminal 75 can come into contact with the receiving terminal 47b to conduct a conduction. As a result, the second circuit block 123 is mounted on the mechanism module 21 at the first height position in the axial direction.
    The mechanism module 21 and the second circuit block 123 are fixed to each other by screwing the three second male screws 61 respectively in the second female screws 57. More specifically, the second male screws 61 are respectively inserted in the second screw insertion holes 171b of the circuit board main body 171 from the front side, and are screwed into the second female screws 57.
    Module Chassis As the module frame 25 of the first movement 10A, the module frame 125 is shaped like a disk having substantially the same diameter as the second circuit block 123. The thickness, in the axial direction, of the frame for module 125 coincides with the thickness, in the axial direction, between the rear end portion of the mechanism module 21 and the first height position A. The second circuit block 123 at which the mechanism module is assembled to the frame for module 125 from the front side.
    The frame for module 125 includes a module receiving hole 125a and an element receiving hollow (not visible). In the center of the module frame 125, the module receiving hole 125a passes through the module frame in the axial direction. As in the case of the module receiving hole 25a of the module frame 25 of the first movement 10A, the mechanism module 21 is disposed in the module receiving hole 125a. As in the case of the element receiving recess 25b of the module frame 25 of the first movement 10A, the element receiving recess is formed to prevent contact with elements such as the printed circuit board and the crystal oscillator unit (none of which is visible) of the second circuit block 123.
    In this way, in the mechanism module 21 of the present embodiment, the second circuit block 123 can be mounted at the first height position A, at a position different from the gear wheel 52, so that, by forming the second circuit block 123 in a shape avoiding the gear bridge 52, it is possible to obtain a reduction in the thickness, in the axial direction, of the second movement 10B comprising the mechanism module 21 and the second circuit block 123 without having to reduce the thickness, in the axial direction, of the mechanism module 21. In this way, it is possible to provide a mechanism module 21 for reducing the thickness of the second movement 10B.
    In addition, the first circuit block 23 can be mounted at the second height position B of the mechanism module 21, so that there is no need to give the first circuit block 23 a shape avoiding the axle 52. As a result, it is possible to make a first movement 10A comprising a first circuit block 23 having a large area. In this way, it is possible to propose a mechanism module 21 having a great general versatility which makes it possible to mount one or the other of the first and second circuit blocks 23 and 123, according to the function required for the movement 10.
    In addition, with regard to the receiving terminal 47b coming into contact with the transmission terminal 75 of the second circuit block 123 for conduction, it is possible to carry out the conduction at the second terminal. transmission 75 of the first circuit block 23 disposed at a different height of the second circuit block 123 in the axial direction, via the relay circuit board 24. Thus, with a simple constitution, it is possible to make the first block to circuits 23 and the second circuit block 123 share the receiving terminal 47b.
    In addition, in the second movement, the second circuit block 123 is mounted at the first position in height A, so that, compared to the constitution in which the circuit board is mounted at the second height position B it is possible to obtain a reduction in the thickness of the movement 10.
    In addition, the second circuit block 123 is made in an annular shape so that, compared to the case where the circuit block is formed in a C-shaped form to avoid the gear wheel bridge 52, it is possible to obtain an improvement in terms of robustness of the second circuit block 123.
    In addition, in the first movement 10A, the first circuit block 23 is mounted at the second height position B, above the gear bridge 52, so that there is no need to give in the first circuit block 23 a shape avoiding the first gear bridge, which allows to propose a movement 10 comprising a first circuit block 23 having a large area. As a result, it is possible to provide more circuits on the first circuit block 23, so that it is possible to provide a very powerful movement.
    Modification of the Embodiment [0088] FIG. 12 is an enlargement of a section of a first movement according to a variant of the embodiment.
    As shown in FIG. 12, a mechanism module 221 may comprise a spacer 266 held between itself and the first circuit block 23 when the first circuit block 23 is mounted at the second height position B.
    A main body portion 258 of the gear wheel 252 includes a recess 252b formed at the periphery of the through hole 58a. The recess 252b is dug from the front face of the main body portion 258 of the drive axle 252 toward the rear side and is radially open outwardly. The position, in the radial direction, of the bottom surface of the recess 252b is the first height position A. The spacer 266 is disposed in the recess 252b. The spacer 266 has a through hole 266a coaxial with the through hole 58a.
    In this way, the mechanism module 221 comprises the spacer 266 disposed in the recess 252b of the gear wheel 252, so that the second circuit block 123 can be mounted at the first height A, in a configuration in which the spacer is removed. Here, the bottom surface of the recess 252b is at the first position in height A, so that the circuit block 123 can be made so that its surface is large, making it possible also to have the second circuit block 123 in a position in which the spacer 266 has been placed. Thus, it is possible to give a large area to the second circuit block 123. As a result, it is possible to provide more circuits on the second circuit block 123.
    And, as shown in FIG. 12, it is possible to mount the first circuit block 23 in a configuration where the tread 252b of the trolley 252 is filled with the spacer 266. Thus, it is possible to reliably mount the first circuit block 23 on the mechanism module 221.
    The present invention is not limited to the embodiment described above with reference to the drawings but allows various modifications within its scope.
    For example, while the present invention is applied to a timepiece of the analog quartz type in the above embodiment, the present invention can also be applied to a timepiece of the type combined with quartz, comprising a display both analog and digital.
    In addition, while in the embodiment above, the mechanism module 21 comprises the gear train 52, as protruding portion protruding from the first height position A to the second height position B according to the invention. the axial direction, this should not be interpreted restrictively. The projecting portion may be formed on a portion of the plate so as to project from the first height position, in the axial direction, to the second height position, rearward in the axial direction.
    In addition, while in the embodiment above, the receiving terminal 47b provided at the first height position A is provided at the periphery of the projecting portion (constituted by the gear wheel 52 in the previously described embodiment) protruding to the second position in height B, this should not be interpreted restrictively. For example, the receiving terminal may be formed on the inner side of the protruding portion as viewed in the axial direction. In other words, the mechanism module can adopt a constitution such that it comprises a protruding portion protruding to the second position in height at the periphery of the receiving terminal provided at the first height.
    In addition, while in the above embodiment the second circuit block 123 is annular, this should not be interpreted restrictively. It is only necessary that the second circuit block mounted at the first position in height A is made in a shape avoiding the gear train 52; for example, it can be made C-shaped, as seen in the axial direction.
    Moreover, the components of the above embodiment may be replaced by well-known components, as appropriate, without departing from the scope of the principle of the present invention.
    Description of reference numbers and symbols [0099] 1 ... timepiece, 10 ... movement, 10A ... first movement (movement), 10B ... second movement (movement), 21 and 221. .. module with mechanism, 23 ... first circuit block (second circuit board (s), external component), 24 ... relay circuit board, 30 ... gear, 40A ... first motor (motor ), 40B ... second motor (motor), 40C ... third motor (motor), 47b ... receiving terminal, 52 and 252 gearing bridge (projecting portion), 123 ... second circuit block (first circuit board (s), external component), 266 ... spacer.
    权利要求:
    Claims (7)
    [1]
    claims
    A mechanism module comprising: a train having a plurality of gears; a drive motor of the gear train; a receiving terminal provided at a first height position in a predetermined direction and capable of receiving an electrical signal for driving the motor from an external component; and a projecting portion protruding from the first height position, in the predetermined direction, to a second height position; wherein, at the first height position, a first circuit board (s) electrically connected to the receiving terminal may be mounted at a position different from the projecting portion.
    [2]
    2. Mechanism module according to claim 1, wherein a second circuit board (s) can be mounted at the second position in height; and the receiving terminal may be electrically connected to the second circuit board (s) via a relay element disposed at the first height position.
    [3]
    3. Mechanism module according to claim 2, further comprising a spacer held between itself and the second circuit board (s).
    [4]
    4. A movement comprising: a mechanism module according to one of claims 1 to 3; and the first circuit board (s).
    [5]
    5. Movement according to claim 4, wherein the first circuit board (s) has an annular shape comprising an opening where there is the protruding portion.
    [6]
    A movement comprising: the mechanism module according to claim 2 or 3; and the second circuit board (s).
    [7]
    7. Timepiece comprising a movement according to one of claims 4 to 6.
    类似技术:
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    同族专利:
    公开号 | 公开日
    JP2018009915A|2018-01-18|
    CN107621774B|2020-12-25|
    CH712680B1|2022-02-15|
    CN107621774A|2018-01-23|
    JP6506218B2|2019-04-24|
    引用文献:
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    KR900700935A|1988-01-25|1990-08-17|야마무라 가쯔미|Electronic wrist watch with power generation device|
    JP2566310Y2|1990-06-26|1998-03-25|シチズン時計株式会社|Module structure of analog clock|
    JP3245181B2|1997-01-08|2002-01-07|シチズン時計株式会社|Analog electronic clock|
    JPH10319146A|1997-05-19|1998-12-04|Casio Comput Co Ltd|Electronic equipment with vibration motor|
    JP3571942B2|1998-11-30|2004-09-29|セイコーインスツルメンツ株式会社|Electronic clock|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2016140015A|JP6506218B2|2016-07-15|2016-07-15|Mechanism module, movement and watch|
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