JP5133718B2 - Timepiece display mechanism, winding mark remaining amount display mechanism, and timepiece having the mechanism - Google Patents

Description

  The present invention relates to a display mechanism suitable for being used as a winding mark remaining amount display mechanism and a timepiece having the display mechanism.

  In a timepiece in which at least a part of the driving source is a mainspring, attempts have been made to give a taste to the display of the remaining winding mark or power reserve (mainspring winding remaining amount or remaining spring amount) (for example, Patent Documents 1 to 3). 3).

  Patent Document 1 discloses an output gear that rotates in response to a change in the remaining amount of mainspring by using a gear (herein referred to as a segment gear) integrally provided with a plurality of segments or sector gear portions (fan gear portions). A winding mark remaining amount display mechanism is disclosed in which a winding mark display wheel is driven to display the remaining amount of the mainspring at a distance from the position.

  Thus, although the display area can be selected, the display itself is not changed to the conventional arc-shaped or fan-shaped display, and the center of the arc or fan in the display is within the range of the expansion of the watch. It is difficult for a user who can only see the appearance to feel a change (preference).

In Patent Document 2, although the display is novel in that the linear display is performed, the male screw and the female screw are combined for the linear display, and it is practically impossible to display a form other than the straight line. .
JP 2005-214655 A JP 2006-234432 A

  The present invention has been made in view of the above-described points, and an object thereof is to provide a timepiece display mechanism, a winding mark remaining amount display mechanism, and the mechanism capable of displaying various trajectories without changing the basic structure. Is to provide a watch.

  In order to achieve the above object, the timepiece display mechanism of the present invention includes a first transmission wheel main body and a first transmission wheel including a first gear portion integrated with the first transmission wheel main body. A second transmission wheel including a second transmission wheel main body and a second transmission wheel integral with the second transmission wheel main body and meshed with the first gear wheel; A first link member that is rotatably connected to the first transmission vehicle main body at one connecting portion and has a second connecting portion on the other end side, and a second transmission at the third connecting portion on one end side. A second link member rotatably connected to the vehicle body, and rotatably connected to a second connection portion of the first link member at a fourth connection portion on the other end side; And a display portion provided on the other end side of the link member.

  In the timepiece display mechanism of the present invention, “the first and second gear portions meshing with each other as described above, the first and second transmission wheel main body portions are connected at one end, and the other end sides are mutually connected. The first and second link members connected to each other and the display portion provided on the other end side of the first link member. It is possible to draw a trajectory of a desired shape with a limitless number of variations on the display unit simply by changing.

In the timepiece display mechanism of the present invention, the change in the display pattern of the display unit is mainly
(1) The gear ratio of the first and second gear portions (or, for example, the diameter from the rotation center of the first transmission wheel to the first connecting portion and the rotation center of the second transmission wheel to the third Ratio to the diameter of the connecting part),
(2) The ratio between the distance between the first and second connecting portions and the distance between the third and fourth connecting portions;
(3) Whether the link member to which the display unit is attached is the longer or shorter of the first and second link members,
(4) Whether the first link member to which the display unit is attached is a link member attached to an upstream transmission vehicle or a link member attached to a downstream transmission vehicle for transmission of motion. And (5) phase (angular position) at which the first and third connecting portions are positioned relative to the corresponding first and second transmission wheel main body portions at the initial position.
Depends on etc. Here, the display unit can take not only various lines from a simple straight line to a complicated curved line such as an S-shape, but also a meandering or other more complicated line. . Here, (3) and (5) are conditions of the link mechanism.

  The timepiece display mechanism of the present invention typically includes a winding mark remaining amount display mechanism, in which the first transmission wheel is a first winding mark transmission wheel, The second transmission wheel is a second winding mark transmission wheel, and the display unit is a remaining winding mark display unit.

  In that case, it is possible to display the remaining amount of winding of the mainspring (power reserve (amount)) with a desired unique and conspicuous trajectory by using an empty area of the dial. However, if desired, the display mechanism of the timepiece of the present invention may be used to display an amount other than the remaining amount of winding stamps.

  In the time stamp remaining amount display mechanism of the timepiece of the present invention, typically, the first transmission wheel is positioned upstream of the second transmission wheel with respect to the transmission of rotation.

  In that case, the display unit provided on the other end side of the first link member connected to the first transmission wheel on one end side is typically closer to the second transmission wheel than the first transmission wheel. Draw a trajectory on the side. Accordingly, since the display can be performed on the side away from the mechanism (typically, for example, a planetary unit or the like) that transmits the movement to the first transmission wheel, it is easy to use the space of the watch effectively, and Since a large locus can be drawn, a desired shape (pattern) can be displayed in a desired size. However, if desired, the first transmission wheel may be located downstream of the second transmission wheel with respect to the transmission of rotation.

  In the winding mark remaining amount display mechanism of the timepiece of the present invention, typically, the winding mark remaining amount display part is formed at a position away from the first connecting part from the first connecting part in the first link member. Has been.

  In that case, since the displacement is easily enlarged, it is possible to draw a large trajectory, and it is easy to display a desired shape (pattern) with a desired size.

  In the time stamp remaining amount display mechanism of the timepiece of the present invention, typically, the number of teeth of the first gear portion is larger than the number of teeth of the second gear portion.

  In that case, it is easy to change the trajectory of the display unit finely. However, if desired, the number of teeth of the first gear portion may be smaller than the number of teeth of the second gear portion.

  In the winding mark remaining amount display mechanism of the timepiece of the present invention, typically, the gear ratio between the first gear portion and the second gear portion is 2: 1.

  In that case, it is easy to draw a curved locus that changes greatly. However, 2 to 1 is not an exact number but an approximate ratio and may be a ratio within a range of about 1.5 to 1 to 2.5 to 1. Of course, for a specific pattern desired, even if the ratio is about 3 to 1 or much different, the number of teeth is about the same as 1 to 1.5 to 1. Also good. Here, the tooth number ratio can be replaced by a diameter ratio as described above.

  In the time stamp remaining amount display mechanism of the timepiece of the present invention, typically, the length of the arm between the first and second connecting portions of the first link member is the third and second of the second link member. It is more than the length of the arm between four connection parts.

  In that case, it is easy to change the locus of the display part finely, similarly to the condition of the number of teeth of the gear part. However, if desired, the length of the arm between the connecting portions of the first link member may be shorter than the length of the arm between the connecting portions of the second link member.

  In the winding mark remaining amount display mechanism of the timepiece of the invention, typically, the gear ratio between the first gear portion and the second gear portion is 1: 1, and the first and The length of the arm between the second connecting portions is the same as the length of the arm between the third and fourth connecting portions of the second link member, and the winding mark remaining amount display portions are the first and second It is provided in the connection part which connects a link member rotatably.

  In that case, a linear trajectory is obtained along a mirror-symmetrical center line. Note that this trajectory is not only a linear trajectory that moves in one direction, but can also be a linear trajectory that reciprocates at least partially.

  In the above, attention is paid to the locus captured as a plane figure in the two-dimensional plane, but attention may also be paid to how the movement amount (displacement amount) changes along the locus with respect to winding and rewinding of the mainspring for a certain time. it can.

  From this point of view, in the time stamp remaining amount display mechanism of the timepiece according to the present invention, the amount of movement of the display unit is nonlinearly dependent on the change in the remaining amount of time stamped.

  For example, the amount of movement (displacement) along the trajectory with respect to winding or unwinding of the mainspring for a certain time when the mainspring is close to complete winding is a fixed time of the mainspring when the mainspring is close to complete unwinding (unwinding). Depending on whether it is larger or smaller than the movement amount (displacement amount) along the trajectory for winding and rewinding of minutes, the remaining amount of the mainspring in the vicinity of the fully wound state can be accurately displayed, and vice versa. It is possible to accurately display the remaining amount of the mainspring in the vicinity of the complete rewinding (unwinding) state. Of course, the intermediate state can be displayed more accurately.

  In the time stamp remaining amount display mechanism of the present invention, the trajectory of the display unit can be significantly changed as desired, so that an enlarged display of a desired region can be easily performed.

  The timepiece of the present invention includes the display mechanism as described above.

  Some preferred embodiments of the present invention will be described based on preferred examples shown in the accompanying drawings.

  1 and 2 show a main body or a movement 3 of a mechanical timepiece 2 having a winding mark remaining amount display mechanism 1 according to a preferred embodiment of the present invention, and FIG. Appearance from the dial side is shown.

  The movement 3 of the timepiece 2 includes a barrel 10 as shown in FIG. 2, and the winding mark remaining amount display mechanism 1 includes a planetary car mechanism or a planetary unit 100 and a winding mark remaining amount display mechanism as can be seen from FIG. It has a main body 5. In this example, as can be seen from FIG. 2, the movement 3 includes a base plate 21, a barrel holder 22, a second base plate 23, a second train wheel receiver 24, and the like as stationary supports.

  The barrel 10 has a mainspring 11 therein, and the mainspring 11 is wound up according to the rotation of the square hole wheel 14 fixed to the barrel 13 with a square hole screw 12. When winding the mainspring 11, the barrel 15 attached to the barrel 13 is rotated in the A direction. When the mainspring 11 is unwound, the barrel 16 is rotated along with the barrel gear 17 in the A direction. .

  The planetary unit 100 includes a first sun wheel 110 having a first sun gear 111 and a first sun pinion 112 meshed with a barrel 18, a second sun gear 121 and a second sun pinion 122. A concentric second sun wheel 120, a planetary intermediate gear 131, and spacers 132 and 132 (FIG. 1) are provided. The first and second sun wheels 110 and 120 are concentric with the planetary intermediate wheel 130 and the first sun pinion 112. The first planetary gear 141 rotatably supported by the intermediate wheel 130 and the second sun pinion 122 are meshed with the first planetary gear 141 and the planetary wheel 140 is formed of the second planetary gear 142 having a smaller diameter than the first planetary gear 141. The planetary intermediate gear 131 is engaged with the barrel 15 through the planetary transmission wheel 150. The planetary transmission wheel 150 includes a planetary transmission gear 151 meshed with the planetary intermediate gear 131 and a planetary transmission pinion 152 meshed with the barrel 15 that is integrated with the planetary transmission gear 151.

  Therefore, the second sun gear 121 of the planetary unit 100 is rotated in the B2 direction in accordance with the A direction rotation of the barrel 15 which is caused by the winding of the mainspring 11, and the A direction rotation of the barrel 18 which is accompanied by the rewinding of the mainspring 11 is performed. Accordingly, the second sun gear 121 of the planetary unit 100 is rotated in the B1 direction. Here, the second sun gear 121 of the planetary unit 100 functions as an output gear of the remaining winding mark display mechanism 1. As long as the output gear of the winding mark remaining amount display mechanism 1 is rotated in the reverse direction in a state of being largely decelerated in accordance with the winding and rewinding of the mainspring 11, the second sun wheel of the planetary unit 100 is used. Any other thing may be used instead of 121.

  As shown in FIG. 5, the mechanical timepiece 2 includes an hour hand 34, a minute hand 35, and a second hand 36, and a dial plate according to the rotation of a clock train (not shown) accompanying the rewinding of the mainspring 11. The time is displayed by the hour hand 34, the minute hand 35 and the second hand 36 which rotate on the front surface of FIG.

  The winding mark remaining amount display mechanism main body 5 includes, for example, as shown in FIGS. 1 and 2, a winding mark first transmission wheel 40, a winding mark second transmission wheel 50, a winding mark first transmission link 60, A winding mark second transmission link 70 and a winding mark remaining amount display body 80 are provided.

  The winding mark first transmission wheel 40 includes a first disk-shaped portion 42 serving as a first transmission wheel main body rotatably supported by a shaft-shaped portion 41 supported by the second base plate 23, and the disk-shaped portion. A first gear portion 44 integral with the portion 42; The winding mark first transmission wheel 40 is meshed with the second sun gear 121 that forms the output gear of the planetary unit 100 at the first gear portion 44, and is axially shaped according to the B1 and B2 direction rotation of the second sun gear 121. It is rotated around the central axis D of the portion 41 in the directions D1 and D2.

  The winding mark second transmission wheel 50 includes a second disk-shaped portion 52 as a second transmission wheel main body portion rotatably supported by a shaft-shaped portion 51 supported by the second base plate 23, and the disk-shaped portion. A second gear portion 54 integral with the portion 52; The winding mark second transmission wheel 50 is meshed with the first gear part 44 of the winding mark first transmission wheel 40 at the second gear portion 54, and is wound according to the B1 and B2 direction rotations of the second sun gear 121. The first transmission wheel 40 is rotated around the central axis E of the shaft-like portion 51 in the E1 and E2 directions.

  In this example, the winding mark first transmission link 60 is formed by connecting two arm portions 61 and 62 at an angle to each other at the connection portion 63, and as a whole, a “he” -shaped shape (L-shaped) The leg part has an obtuse angle). The winding mark first transmission link 60 is connected to the first link connecting portion 45 of the first disc-shaped portion 42 of the winding mark first transmission wheel 40 via the connecting pin structure 65 at the tip 64 of one arm portion 61. Is rotatably connected to.

  In this example, the winding mark second transmission link 70 includes a straight arm portion 71, and the second end of the winding mark second transmission wheel 50 is connected to the one end 72 of the linear arm portion 71 via the connecting pin structure 73. The second link connecting portion 55 of the disc-like portion 52 is rotatably connected.

  The winding mark first transmission link 60 is further connected to the other end portion 74 of the straight arm portion 71 forming the second transmission link 70 at the bent portion 63 which is the connection portion of the arm portions 61 and 62. It is rotatably connected via a link connecting pin structure 88 that functions as

  The winding mark remaining amount display body 80 is attached to the other end 66 of the arm part 62 of the winding mark first transmission link 60 at the base end part 81, and the shaft part 82 projects through the groove-like gap 83 of the dial 7. The display unit 84 is located on the front side of the dial 7.

  In this winding mark remaining amount display mechanism 1, the winding mark first transmission is performed in accordance with the B2 direction rotation of the second sun gear 121 of the planetary unit 100 accompanying the rotation of the mainspring 11 of the barrel 10 in the A direction of the barrel 15. The wheel 40 is rotated in the D2 direction, and the winding mark second transmission wheel 50 meshed with the gear portion 44 of the winding mark first transmission wheel 40 by the gear portion 54 is rotated in the E2 direction. The first and second transmission links 60 and 70 are fixed to the distal end portion 66 of the first transmission link 60 by swinging of the first and second transmission links 60 and 70 according to the rotation in the D2 and E2 directions of the winding first and second transmission wheels 40 and 50. The display unit 80 draws an S-shaped trajectory F along the groove 83 in the F2 direction.

  On the other hand, in the normal hand movement state associated with the rewinding (unwinding) of the mainspring 11 of the barrel 10, the first winding mark is changed according to the B1 direction rotation of the second sun gear 121 of the planetary unit 100 accompanying the rotation of the barrel box 16 in the A direction. The transmission wheel 40 is rotated in the direction D1, and the winding mark second transmission wheel 50 is rotated in the direction E1. Due to the swing of the first and second transmission links 60, 70 according to the rotation of the first and second transmission wheels 40, 50 in the D1, E1 direction, the display unit 80 is moved along the groove 83 in the F1 direction. Draw an S-shaped trajectory F.

  Here, as will be described in detail below, the trajectory F may be S-shaped or other depending on various related parameters, and may take various forms.

  That is, the main body 5 of the remaining winding mark display mechanism 1 can depend on various parameters as shown in FIGS. However, (a) and (b) in FIG. 6 are simply diagrams for explaining various variables and parameters, and do not correspond to the displays in FIG. 1 and FIG. The winding mark remaining amount display mechanism 1 for performing the S-shaped display in the mechanical timepiece 2 of FIG. 5 is, for example, as shown in FIG. 1, FIG. 3, FIG. 4 and FIG. A schematic display similar to FIGS. 6A and 6B for the mechanism 1 is as shown in FIG.

  First, the general notation of the trajectory F will be specifically described based on (a) and (b) of FIG. In the following description, there is generality except that it is assumed that the arm portion 61 of the winding mark first transmission link 60 and the length of the winding mark second transmission link 70 are the same. In order to give a large movement as the trajectory F, it is usually preferable that the lengths of the two are the same, but the lengths of the two may be greatly different if desired.

As shown in FIGS. 6A and 6B, the position H of the display portion 84 of the display body 80 is set to the rotation center D of the winding mark first transmission wheel 40 and the rotation center of the winding mark second transmission wheel 50. Based on an XY orthogonal coordinate system in which the direction connecting E is the X axis and the direction perpendicular to the X axis is the Y axis, it is expressed as H (x _, y). The position H (x, y) of the display portion 84 of the display body 80 that is at the complete unwinding position or the initial position H ₀ (x _0, y ₀ ) corresponding to the state in which the mainspring 11 is completely unwound is the mainspring. In accordance with the rotation in the D2 and E2 directions of the gears 44 and 54 of the winding mark first and second transmission wheels 40 and 50 accompanying the winding of 11, the following changes are made as shown in (Expression 1) and (Expression 2). However, in the following, the angles θ1 and θ2 are taken in the D1 direction (−D2 direction) and the E1 direction (−E2 direction) with reference to the positive and negative directions of the X axis.
x = (a ・ cosθ1 + L1 ・ cosβ) + L2 ・ cos (β-ξ) (Formula 1)
y = (a ・ sinθ1 + L1 ・ sinβ) + L2 ・ sin (β-ξ) (Formula 2)

here,
“A” is the length from the rotation center D of the winding mark first transmission wheel 40 to the rotation center 65 (connecting portion 45) of the winding mark first transmission link 60 (base end side arm part 61);
“L1” is the length of the proximal arm 61 of the winding mark first transmission link 60;
“L2” is the length of the distal arm portion 62 of the winding mark first transmission link 60;
“Θ1” is an angle formed by a line connecting the rotation center D of the winding mark first transmission wheel 40 and the rotation center 65 of the proximal arm 61 of the winding mark first transmission link 60 with respect to the X axis,
“Β” is an angle formed by the proximal arm 61 of the winding mark first transmission link 60 with respect to the X axis,
“Ξ” is an angle formed by the distal arm portion 62 of the winding mark first transmission link 60 with respect to the proximal arm portion 61.

Further, the proximal end side rotation center 65 of the winding mark first transmission link 60 (the rotation connecting portion 45 with the winding mark first transmission wheel 40) and the proximal end side rotation center 73 of the winding mark second transmission link 70 ( Assuming that the angle formed by the line segment K connecting to the second connecting wheel 50 with the winding mark second transmission wheel 50 with respect to the X axis is “α”, the angles β, α, γ are set according to the following conditions (formula 3): ), (Formula 4) and (Formula 5) are satisfied. However, as described above, it is assumed here that the length of the winding mark second transmission link 70 is the same length L1 as the arm portion 61 of the winding mark first transmission link 60. Generally, the length of the winding mark second transmission link 70 may be longer or shorter than the arm portion 61 of the winding mark first transmission link 60 as described above.
β = (π-γ / 2) -α (Formula 3)
α = arctan [(a ・ sinθ1-b ・ sinθ2) / [J- (a ・ cosθ1-b ・ cosθ2)]] (Formula 4)
γ = arccos [[2 · L1 2 - [J- (a · cosθ1 + b · cosθ2) 2 - (a · sinθ1-b · sinθ2) 2]] / (2 · L1 2)] ( Equation 5)

here,
“B” is the length from the rotation center E of the winding mark second transmission wheel 50 to the rotation center 73 of the winding mark second transmission link 70;
“J” is the distance between the rotation center D of the winding mark first transmission wheel 40 and the rotation center E of the winding mark second transmission wheel 50;
“Θ2” is an angle formed by a line connecting the rotation center E of the winding mark second transmission wheel 50 and the rotation center 73 of the winding mark second transmission link 70 with respect to the X axis (negative direction).

In addition, since the gears 44 and 54 of the winding mark first and second transmission wheels 40 and 50 are engaged, the following conditions (Expression 6), (Expression 7), and (Expression 8) are satisfied.
θ2 = θ ₀₂ + ω ・ (θ1-θ ₀₁ ) (Formula 6)
r1 = ω ・ r2 (Formula 7)
J = R1 + R2 (Formula 8)

here,
“Θ ₀₁ ” indicates that the rotation center D of the winding mark first transmission wheel 40 and the proximal-side rotation center 65 (connection portion 45) are in the complete rewind position or the initial position H ₀ (x _0, y ₀ ). The angle formed by the connecting line with respect to the X axis (the initial value of the angle θ1),
“Θ ₀₂ ” is a line connecting the rotation center E and the rotation center 73 (connecting portion 55) of the winding mark second transmission wheel 50 at the complete rewind position or the initial position H ₀ (x _0, y ₀ ). Angle formed with respect to the X axis (initial value of angle θ2),
“Ω” is the gear ratio (speed increase ratio) of the gears 44 and 54 of the winding mark first and second transmission wheels 40 and 50,
“R1” is the number of teeth of the gear 44 of the winding mark first transmission wheel 40,
“R2” is the number of teeth of the gear 54 of the winding mark second transmission wheel 50,
“R1” is the radius of the gear 44 of the winding mark first transmission wheel 40,
“R2” is the radius of the gear 54 of the winding mark second transmission wheel 50.
6A and 6B, the directions in which the angles θ1 and θ2 increase are the directions D2 and D2 in which the winding mark first and second transmission wheels 40 and 50 rotate when the mainspring 11 is wound as described above. E2.

As can be seen from the above (Expression 1) to (Expression 8), in this winding mark remaining amount display mechanism 1, even if the arm portion 61 of the link 60 and the linear link 70 have the same length (L1), The display pattern or display trajectory F, that is, H (x _, y) by the display unit 84 of the display body 80 can be changed depending on many parameters.

The main thing is
(1) Initial positions (θ ₀₁ , θ ₀₂ ) of the winding mark first and second transmission links 60, 70
(2) Number of teeth ratio or speed increase ratio (ω), ratio (r1 / r2) of distance from the rotation center of the winding mark transmission wheel to the corresponding link connection part (link rotation center) Radius (R1, R2) of gears 44, 54 of second transmission wheel 40, 50 (typically, radius ratio R1 / R2)
(3) Distance (R1 + R2) between the rotation centers D, E of the winding mark first and second transmission wheels 40, 50 with respect to the length (L1) of the proximal end side arm portion 61 of the winding mark first transmission link 60 Relative size of [(R1 + R2) / L1]
(4) Relative length (L2 / L1) and angle (ξ) of the distal arm portion 62 of the winding mark first transmission link 60 with respect to the proximal arm portion 61
It is.

FIG. 7 shows an embodiment of the remaining winding mark display mechanism 1. In the winding mark remaining amount display mechanism 1 of this embodiment,
(1) Initial positions θ ₀₁ = 70 degrees, θ ₀₂ = 140 degrees of the winding mark first and second transmission links 60 and 70,
(2) The number of teeth ratio or speed increasing ratio ω = 2, the radii R1 = 300, R2 = 150 of the winding mark transmission wheels 40, 50, and the winding mark first transmission link from the rotation center D of the winding mark first transmission wheel 40. 60, the length a of the arm portion 61 from the rotation center 65 to the rotation center 65, the length b from the rotation center E of the winding mark second transmission wheel 50 to the rotation center 73 of the winding mark second transmission link 70, b = 100,
(3) Lengths L1 = 450, L2 = 250 of the proximal end side and distal end side arm portions 61, 62 of the winding mark first transmission link 60,
(4) The angle ξ of the distal end side arm portion 62 of the winding mark first transmission link 60 with respect to the proximal end side arm portion 61 is 45 degrees.

In this case, in FIG. 7, as indicated by the solid line, the proximal rotation center 65 of first convey link 60 is in the fully unwinding position Q1 _0, the second transmitted base end rotation center 73 of the link 70 Is at the initial position U1 ₀ , the display unit 84 of the display body 80 takes the complete rewind position P1 ₀ . The location and state corresponds to a state (completely rewinding state) S1 ₀ shown in FIG.

On the other hand, in accordance with the winding of the mainspring 11, the winding mark first transmission wheel 40 rotates in the D2 direction and the winding mark second transmission wheel 50 rotates in the E2 direction, and as shown by an imaginary line in FIG. When the proximal end rotation center 65 of the first transmission link 60 is at the intermediate position Q1 and the proximal end rotation center 73 of the second transmission link 70 is at the intermediate position U1, the display unit 84 of the display body 80 is taking an intermediate position P1 moved from full rewind position P1 ₀ in F2 along the F. The position P1 and the state S1 correspond to the state (intermediate state) S1 shown in FIG.

By rotating the winding mark first and second transmission wheels 40 and 50 in the D2 and E2 directions in accordance with the further winding of the mainspring 11, as shown by an imaginary line in FIG. When the moving center 65 reaches the full winding position Q1 _f and the proximal end side rotation center 73 of the second transmission link 70 reaches the full winding position U1 _f , the display unit 84 of the display body 80 has an S-shape. Further along the line F in the F2 direction, the full winding position P1 _{f to the} state S1 _f are taken. The position P1 _f and the state S1 _f correspond to the state (full winding state) S1 _{f shown} in FIG.

As a result, in the winding mark remaining amount display mechanism 1, the display unit 84 of the display body 80 is shown by a solid line and an imaginary line in FIG. 7 according to the winding of the mainspring 11, and by a solid line in FIGS. as indicated, go to the direction F2 along the S-shaped trajectory F, it reaches full rewind position P1 ₀ on the full winding position through the intermediate position P1 to P1 _f.

On the other hand, the Makishirushizan quantity display mechanism 1, the display unit 84 of the display 80, depending on the winding complete the mainspring 11 (full winding) rewinding from state S1 _f to completely rewind state S1 ₀ (unfolded), As indicated by the imaginary line and the solid line in FIG. 7, and moved in the F1 direction along the S-shaped trajectory F as shown by the solid lines in FIGS. 4, 3 and 1, the intermediate position from the full winding position P1 _f through the P1 reaches full rewind position P1 _0.

That is, in the power accumulation quantity display mechanism 1, the display unit 84 of the display body 80 along the S-shaped groove 83 of the dial 7, the full winding position P1 _f and complete unwinding position P1 ₀ It moves in an S shape in the F1 direction (in the case of rewinding with normal hand movement) or in the F2 direction (in the case of winding the mainspring 11). That is, the remaining amount of the winding mark can be displayed at the position of the display unit 84 of the display body 80 along the S-shaped scale of the dial 7.

More specifically, the trajectory F has an irregular “8” character shape or cursive “S” character shape as a whole including the imaginary line portion Fi in FIG. Thus, for example, taking a different position as a complete rewinding position P1 ₀ and full winding position P1 _f, it is also possible to provide a trajectory of more different shapes may say all.

  The trajectory F may have an intersection, but when the trajectory is represented by the groove 83 of the dial, it is preferable that the trajectory F is not a closed curve for the convenience of forming the background portion of the trajectory F like the dial 7. .

  FIG. 8 shows a modified winding remaining amount display mechanism 1A in which the entire locus gives a more complicated shape.

In the winding mark remaining amount display mechanism 1A shown in FIG.
(1) Initial positions θ ₀₁ = 150 degrees, θ ₀₂ = 0 degrees of the winding mark first and second transmission links 60, 70 (2) The winding mark transmission wheel 40, with the gear ratio or speed increasing ratio ω = 3 50 radius R1 = 300, R2 = 100, length a from the rotation center D of the winding mark first transmission wheel 40 to the rotation center 65 of the winding mark first transmission link 60, a = 240, winding mark second transmission wheel 50 B = 80 from the rotation center E to the rotation center 73 of the winding mark second transmission link 70,
(3) Lengths L1 = 600, L2 = 50 of the proximal end side and distal end side arm portions 61, 62 of the winding mark first transmission link 60,
(4) The angle ξ = 30 degrees with respect to the proximal arm 61 of the distal arm 62 of the winding mark first transmission link 60.

In the winding mark remaining amount display mechanism 1 </ b> A shown in FIG. 8, the winding mark first transmission link according to the D2 and E2 direction rotations of the winding mark first and second transmission wheels 40, 50 accompanying the winding of the mainspring 11. The rotation center 65 of 60 reaches the full winding position QA _f from the complete rewinding position QA ₀ through the intermediate positions QA1, QA2, and the rotation center 73 of the winding mark second transmission link 70 is the complete rewinding position UA _0. when the reaching the intermediate position UA1, the full wound through the UA2 position UA _f, the display unit 84 of the display body 80 along the ν-shaped trajectory FA, the intermediate position from the fully rewound position PA ₀ PA1, through PA2 moves in FA2 direction until the full winding position PA _f.

In the winding mark remaining amount display mechanism 1A shown in FIG. 8, on the other hand, the first winding mark and the second transmission wheels 40, 50 accompanying the rewinding of the mainspring 11 are rotated in the D1, E1 direction. intermediate position the rotation center 65 of the link 60 from the full winding position QA _f reportedly QA2, through QA1 complete rewinding reaches the position QA _0, power accumulation full winding position the rotation center 73 of second convey link 70 When reaching the complete rewind position UA ₀ from UA _f through the intermediate positions UA2 and UA1, the display unit 84 of the display body 80 moves along the ν-shaped path FA from the full winding position PA _f to the intermediate position. PA2, PA1 to the position PA ₀ back completely wound through the moves in FA1 direction.

That is, in the power accumulation quantity display mechanism 1A, the display unit 84 of the display body 80 along the ν-shaped groove of the plate 7, between the full winding position PA _f and complete unwinding position PA ₀ Is moved in a ν shape in the FA1 direction (in the case of rewinding with normal hand movement) or in the FA2 direction (in the case of winding the mainspring 11). That is, the remaining amount of the winding mark can be displayed at the position of the display unit 84 of the display body 80 along the ν-shaped scale of the dial 7.

More specifically, the locus FA is a part of a complicated shape including an imaginary line portion FAi in FIG. Thus, for example, it may provide a locus of completely different shapes Taking a different position as a complete rewinding position PA1 ₀ and full winding position PA _f.

  On the other hand, another modified example in which the display portion 84 of the display body 80 is linearly displaced is shown in FIG.

In the winding mark remaining amount display mechanism 1B shown in FIG.
(1) Initial positions θ ₀₁ = θ _{02 of} the winding mark first and second transmission links 60, 70,
(2) With the gear ratio or speed increasing ratio ω = 1, the radius R1 = R2 of the winding mark transmission wheels 40, 50 and the corresponding windings from the rotation centers D, E of the winding mark first and second transmission wheels 40, 50 The length a = b of the first and second transmission links 60, 70 to the rotation centers 65, 73;
(3) There is no arm portion 62 of the winding mark first transmission link 60 and its length L2 = 0, and the angle ξ of the distal end side arm portion 62 of the winding mark first transmission link 60 with respect to the proximal end side arm portion 61 = 0 degrees.

  In this case, the winding mark first and second transmission wheels 40 and 50 and the winding mark first and second transmission links 60 and 70 operate symmetrically with respect to the mirror symmetry line N. Is linearly displaced along the mirror target line N.

More specifically, in the winding mark remaining amount display mechanism 1B shown in FIG. 9, according to the D2 and E2 direction rotations of the winding mark first and second transmission wheels 40, 50 accompanying the winding of the mainspring 11, The rotation center 65 of the winding mark first transmission link 60 reaches the full winding position QB _f from the complete rewind position QB ₀ through the intermediate positions QB 1 and QB 2, and the rotation center 73 of the winding mark second transmission link 70 is When the full rewind position UB ₀ passes through the intermediate positions UB 1 and UB 2 and reaches the full rewind position UB _f , the display unit 84 of the display body 80 moves along the linear trajectory FB along the complete rewind position PB _0. To the full hoisting position PB _f through the intermediate positions PB1 and PB2 in the FB2 direction.

In the winding mark remaining amount display mechanism 1A shown in FIG. 9, on the other hand, the first winding mark and the second transmission wheels 40 and 50 accompanying the rewinding of the mainspring 11 are rotated in the D1 and E1 directions. The rotation center 65 of the transmission link 60 reaches the complete rewinding position QB ₀ from the full winding position QB _f through the intermediate positions QB2 and QB1, and the rotation center 73 of the winding mark second transmission link 70 is the full winding position. When reaching the complete rewind position UB ₀ from UB _f through the intermediate positions UB 2 and UB 1, the display unit 84 of the display body 80 moves from the full winding position PB _f to the intermediate position PB 2 along the linear trajectory FB. moves in FB1 direction to a position PB ₀ back completely wound through the PB1.

That is, in this winding mark remaining amount display mechanism 1B, the display portion 84 of the display body 80 is located between the full winding position PB _f and the complete rewinding position PB ₀ along the linear groove of the dial 7. It moves linearly in the FB1 direction (in the case of rewinding with normal hand movement) or in the FB2 direction (in the case of winding the mainspring 11). That is, the remaining amount of the winding mark can be displayed at the position of the display unit 84 of the display body 80 along the linear scale of the dial 7. In this example, between the close intermediate position PB1 completely rewind position PB ₀ to the display unit 84 of the display body 80 hardly moves. Accordingly, when the remaining amount of the winding mark is reduced to a certain extent, it is difficult to distinguish from the complete rewind state in practice, and prompt winding is promoted.

FIG. 1 shows a mechanical timepiece according to a preferred embodiment of the present invention having a winding mark remaining amount display mechanism according to a preferred embodiment of the present invention. Plane explanatory drawing of the part of the remaining stamp display mechanism. Sectional explanatory drawing of the part of the winding stamp residual amount display mechanism of FIG. 1 among the mechanical timepieces of FIG. FIG. 2 is an explanatory plan view of a portion of the winding mark remaining amount display mechanism when the winding mark remaining amount display mechanism is in an intermediate state between a complete rewinding state and a complete winding state in the mechanical timepiece of FIG. 1. FIG. 2 is an explanatory plan view of a portion of the winding mark remaining amount display mechanism when the winding mark remaining amount display mechanism is in a fully wound state with respect to the mechanical timepiece of FIG. 1. FIG. 2 is an explanatory plan view showing an appearance of the dial side of the mechanical timepiece of FIG. 1. FIG. 2 is a schematic explanatory view of the mechanism for explaining how to determine the locus of the display portion of the winding mark remaining amount display mechanism of the mechanical timepiece of FIG. 1, and is an explanatory view mainly showing initial conditions. FIG. 2 is a schematic explanatory diagram of the mechanism for explaining how to determine the locus of the display portion of the winding mark remaining amount display mechanism of the mechanical timepiece of FIG. 1, and is a schematic diagram for explaining various parameters and variables. Illustration. FIG. 7 is a schematic explanatory view of a winding mark remaining amount display mechanism of a preferred embodiment of the present invention in which the winding mark remaining amount display mechanism of the mechanical timepiece of FIG. 1 is shown by the schematic display of FIG. 6. The typical explanatory view similar to FIG. 7 about the winding stamp remaining amount display mechanism of the one modification of the present invention. The typical explanatory drawing similar to FIG. 7 about the winding stamp remaining amount display mechanism of another modification of this invention.

Explanation of symbols

1, 1A, 1B Winding remaining amount display mechanism 2 Mechanical watch 3 Movement 5 Winding remaining amount display mechanism main body 7 Dial 10 Incense box 11 Mainspring 12 Square hole screw 13 Incense box true 14 Square hole car 15 Incense box true kana 16 Incense box Kana 17 barrel gear 21 base plate 22 barrel base 23 second base plate 24 second wheel train receiver 34 hour hand 35 minute hand 36 second hand 40 winding mark first transmission wheel 41 shaft portion 42 first disc portion 44 first gear portion 45 first One link connection portion 50 Winding mark second transmission wheel 51 Shaft-shaped portion 52 Second disc-shaped portion 54 Second gear portion 55 Second link connection portion 60 Winding mark first transmission link 61 Proximal arm portion 62 Tip arm Part 63 connecting part (curved part)
64, 66 End 65 Connection pin structure (rotation center)
68 Link connecting pin structure (link knotting means)
70 Winding Mark Second Transmission Link 71 Linear Arm 72, 74 End 73 Connecting Pin Structure (Rotation Center)
80 winding mark remaining amount display body 81 base end portion 82 shaft portion 83 groove-like gap 84 display portion 88 connecting pin structure (link knotting means)
100 planetary unit 110 first sun wheel 111 first sun gear 112 first sun pinion 120 second sun wheel 121 second sun gear 122 second sun pinion 130 planetary intermediate wheel 131 planetary intermediate gear 132 spacer 140 planetary vehicle 141 first planetary Gear 142 Second planetary gear 150 Planetary transmission wheel 151 Planetary transmission gear 152 Planetary transmission kana A Rotation direction B1, B2, D1, D2, E1, E2 Rotation direction D, E Center axis F Trajectory Fi, FAi In principle, movable Parts F1, F2, FA1, FA2, FB1, FB2 Movement directions P1 ₀ , Q1 ₀ , U1 ₀ , PA ₀ , QA ₀ , UA ₀ , PB ₀ , QB ₀ , UB ₀ Full rewind positions P 1, P 2 , PA1, PA2, Q1, Q2 , QA1, QA2, U1, U2, UA1, UA2 intermediate position _{P1 f, Q1 f, U1 f} , PA f, QA f, U _{f, PB f, QB f,} UB f, full winding position S1 ₀ completely rewind state S1 _f full hoisting state

Claims (10)

A first transmission wheel including a first transmission wheel main body and a first gear portion integrated with the first transmission wheel main body;
A second transmission wheel including a second transmission wheel main body and a second gear wheel that is integral with the second transmission wheel main body and meshed with the first gear wheel;
A first link member rotatably connected to the first transmission wheel main body portion at the first connection portion on one end side and provided with a second connection portion on the other end side;
A third connecting portion on one end side is rotatably connected to the second transmission wheel main body portion, and a fourth connecting portion on the other end side is rotatable to the second connecting portion of the first link member. A connected second link member;
A timepiece display mechanism having a display portion provided on the other end side of the first link member.   The first transmission wheel is a first winding mark transmission wheel, the second transmission wheel is a second winding mark transmission wheel, and the display section is a remaining winding mark display section. The remaining winding mark display mechanism.   The winding mark remaining amount display mechanism according to claim 2, wherein the first transmission wheel is located upstream of the second transmission wheel with respect to transmission of rotation.   The winding mark remaining amount display mechanism according to claim 2 or 3, wherein the winding mark remaining amount display part is formed in the first link member at a position away from the first connecting part than the second connecting part.   The winding mark remaining amount display mechanism according to any one of claims 2 to 4, wherein the number of teeth of the first gear portion is larger than the number of teeth of the second gear portion.   The winding mark remaining amount display mechanism according to claim 5, wherein a gear ratio between the first gear portion and the second gear portion is 2: 1.   The length of the arm between the first and second connecting portions of the first link member is not less than the length of the arm between the third and fourth connecting portions of the second link member. The winding mark remaining amount display mechanism according to any one of the preceding items.   The gear ratio between the first gear portion and the second gear portion is 1: 1, and the length of the arm between the first and second connecting portions of the first link member is the second link member. The winding length remaining amount display portion is provided in a connecting portion that rotatably connects the first and second link members, and the length of the arm between the third and fourth connecting portions is the same. The winding mark remaining amount display mechanism according to 2.   The winding mark remaining amount display mechanism according to any one of claims 2 to 8, wherein the moving amount of the display unit is nonlinearly dependent on a change in the remaining stamping amount.   A timepiece comprising the display mechanism according to any one of claims 1 to 9.

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