CN104238339A - Display mechanism, horologium movement and horologium - Google Patents

Abstract

The invention relates to a display mechanism, a horologium movement and a horologium; and a complex movement trajectory of an indicating part is depicted through a simple structure. The display mechanism is provided with an indicating part (42) for indicating the elapsed time and a control mechanism (50) corresponding to the elapsed time and enabling a movement speed of the indicating part (42) to be diferent.The control mechanism (50) is provided with a cam part (51) and a cam follower unit (55). The cam follower unit (55) is equipped with a lever (60) and an indicator (41); the lever (60) forms a follower part (61) in contact with the cam part (51), and, along with rotation of the cam follower unit (55), the lever (60) swings on one hand and circumferentially rotates around the cam part (51) on the other hand; and one end of the indicator (41) forms the indicating part (42), the other end of the indicator (41) is supported to be capable of rotating around a second shaft (C2) and to circumferentially rotate around the cam part (51), and the other end of the lever (60) and the other end of the indicator (41) are connected via a power transmission part formed by an indicator gear (43) and a lever gear (62).

Description

Indication mechanism, clock machine core and clock and watch

Technical field

This invention relates to indication mechanism, possesses the clock machine core of this indication mechanism and clock and watch.

Background technology

The mechanical clocks such as wrist-watch, except showing the function in moment, also have the function as ornament.Therefore, all the time, be known to such mechanical clock: such as about hour hands or minute hand, second hand, week the pointer such as pin to the expression of the information such as moment or week, possess special indication mechanism to improve intention.

Such as, in patent documentation 1, describe such analog display unit with indicator control device used: its be installed on turning axle and there is the indicator of the value that should show, the analog display unit (indication mechanism) in path selected in advance, and the free end being configured to indicator defers to along with rotating around turning axle the path selected in advance.

The control device of indicator has the groove of length direction, the groove of described length direction slides relative to two pins arranged in the lead arm being installed on turning axle, further, the control device of indicator has horizontal groove, and described horizontal groove is guided by the pin arranged on the arm linked with lead arm.

The motion track of the pin on dial plate is specified relative to the rotating speed of lead arm and the shape of each groove by arm.

Specifically, lead arm rotated 1 circle in 1 hour, and was installed on the hour hands of clock and watch.Arm is driven by hour hands, and in 1 hour, rotate 2 circles.In addition, multiple pin is driven into lead arm and arm, and pin is arranged on lead arm and arm, and under the state of the finger setting of the directed arm of the 1st groove, the pin of arm is configured in the 2nd groove.Like this, utilize the 1st groove to guide pin, thus, pin rotated 1 circle in 1 hour.Further, the end of pin circumferentially rotates, while radially moved by the pin squeezed in arm, thus, the end of pin moves along the path of elliptical shape.

Patent documentation 1: Japanese Unexamined Patent Publication 2005-17295 publication

But the structure of prior art is: the 1st groove shape is the shape of straight line, with the cycle of regulation, pin is radially moved by the pin of arm, make pin rotate simultaneously.Therefore, the motion track of the instruction unit of pin is restricted to the shape of the rotation center symmetry relative to lead arm, thus, describe intention excellence complexity motion track in also have problems.In addition, usually, when the motion track of the instruction unit making pin is formed as complicated track, there is the trend that indication mechanism also becomes complicated.

Summary of the invention

Therefore, problem of the present invention is that providing a kind of can go out the motion track of the complexity of instruction unit by simple structure delineation and can improve the indication mechanism of intention, the clock machine core possessing this indication mechanism and clock and watch.

In order to solve above-mentioned problem, the feature of indication mechanism of the present invention is, this indication mechanism possesses: instruction unit, and it is for representing that the time passes through; And control gear, it passes through corresponding to the described time and makes the translational speed of described instruction unit different.

According to the present invention, owing to possessing the control gear making the translational speed of instruction unit different, therefore, it is possible to gone out the motion track of the complexity of instruction unit by simple structure delineation, thus the intention of indication mechanism can be improved.

In addition, be characterised in that, described control gear possesses: cam part, and it is axle centered by the 1st axle; With cam driven unit, it rotates in a circumferential direction along described cam part, described cam driven unit possesses: bar, one end is formed with the follower with described dwell contacts, and described bar swings along with the rotation of described cam driven unit and rotates in a circumferential direction along described around described cam part; And indicator, one end is formed with described instruction unit, the other end is supported to rotate around the 2nd axle of the radial outside being positioned at described cam part, described indicator rotates in a circumferential direction along described around described cam part along with the rotation of described cam driven unit, and the other end of described bar and the other end of described indicator link via power transfering part.

According to the present invention, owing to utilizing the cam part of axle centered by the 1st axle and defining control gear around the cam driven unit rotated in a circumferential direction of cam part, therefore, control gear 50 can be formed as the less simple structure of number of components.In addition, because cam driven unit possesses bar, described bar at one end portion is formed with the follower with dwell contacts, and described bar swings while circumferentially rotate around cam part along with the rotation of cam driven unit, therefore, by changing the shape of outer peripheral face of cam part, can the oscillating quantity of at random set lever.In addition, by changing follower relative to the relative moving speed of cam part, can the swing speed of at random set lever.In addition, indicator is supported to rotate around the 2nd axle, and, together with the other end of bar and the other end of indicator are attached at via power transfering part, therefore, indicator corresponding to the oscillating quantity of the bar of setting and swing speed while rotate around the 2nd axle, circumferentially can rotate around cam part.Like this, the shape of the outer peripheral face of cam part and follower can be utilized relative to the relative moving speed of cam part, the motion track of the instruction unit of indicator is determined the track for expecting, therefore, the motion track of the complexity of instruction unit can be gone out with simple structure delineation, thus the intention of indication mechanism can be improved.

In addition, be characterised in that, described power transfering part is formed by indicator gear wheel and bar gear, and described indicator gear wheel is formed at the other end of described indicator, and described bar gear shape is formed in the other end of described bar.

According to the present invention, power transfering part is formed by indicator gear wheel and bar gear, therefore, by the ratio of the number of teeth of the number of teeth with bar gear that change intermeshing indicator gear wheel, the motion track of the complexity of instruction unit can be depicted further, thus the intention of indication mechanism can be improved.Particularly, the ratio of the number of teeth of indicator gear wheel is greater than by the ratio of the number of teeth making bar gear, oscillating quantity when indicator rotates can be increased, thus increase the oscillating quantity of instruction unit, the ratio of the number of teeth of indicator gear wheel is less than by the ratio of the number of teeth making bar gear, oscillating quantity when indicator rotates can be reduced, thus reduce the oscillating quantity of instruction unit.Like this, except utilizing the shape of the outer peripheral face of cam part and follower relative to except the relative moving speed of cam part, also by the ratio of the change number of teeth of indicator gear wheel with the number of teeth of bar gear, the motion track of the instruction unit of indicator is determined the track for expecting, therefore, the motion track of the complexity of instruction unit can be gone out with simple structure delineation, thus the intention of indication mechanism can be improved.

In addition, be characterised in that, described cam part possesses main cam face, described main cam face is formed along with the side from described circumference becomes large mode towards opposite side with radius, described main cam face by make the described follower of described bar relative to described 1st axle close to or away from multiple auxiliary cam faces formed.

According to the present invention, main cam face by make the follower of bar relative to the 1st axle close to or away from multiple auxiliary cam faces formed, therefore, by changing the shape in auxiliary cam face, when the follower of bar rotates around cam part under the state contacted with the main cam face of cam part, can the oscillating quantity of adjusting lever.Therefore, the motion track of instruction unit such as can be made to be formed as such as curve-like or be formed as linearity, therefore, it is possible to depict the motion track of expectation.

In addition, be characterised in that, described cam part possesses groove portion, and described groove portion is formed along with the side from described circumference becomes large mode towards opposite side with the distance along described radial direction apart from described 1st axle, and the described follower of described bar is by being formed along the protuberance of described groove portion movement.

According to the present invention, can simply and form cam part at low cost.In addition, the follower of bar, by being formed along the protuberance of groove portion movement, therefore, is configured in groove portion by means of only by the protuberance of bar, follower just can be made to move along groove portion.Therefore, such as, there is no need for the force application part that the mode of follower and dwell contacts is exerted a force to follower towards cam part, therefore, it is possible to make indication mechanism be formed as simpler structure, and cost degradation can be realized further.

In addition, be characterised in that, described cam part and described cam driven unit rotate towards opposite side from the side of described circumference in the same direction around described 1st axle, and described cam driven unit rotates with the speed higher than described cam part.

According to the present invention, cam part and cam driven unit rotate towards opposite side from the side of circumference in the same direction around the 1st axle, and cam driven unit rotates, therefore, it is possible to make cam driven unit relatively rotate relative to cam part with the speed higher than cam part.In addition, during cam part is revolved and is turned around, cam driven unit around cam part multi-turn rotation, thereby, it is possible to make the motion track of instruction unit be formed as having the spiral fashion of the track number corresponding with the track number of cam driven unit.Like this, the rotating ratio that can correspond to cam part and cam driven unit changes the track number of spiral helicine motion track, therefore, it is possible to go out the motion track of the complexity of instruction unit with simple structure delineation, thus can improve the intention of indication mechanism.

In addition, be characterised in that, described cam part is installed in little hour wheel, and the rotating speed of described cam driven unit is 2 times of the rotating speed of described cam part.

According to the present invention, because cam part is installed in the little hour wheel that 12 hours inward turnings turn around, therefore, it is possible to what depict instruction unit was the motion track in 1 cycle with 12 hours.Therefore, using instruction unit as being suitable during hour hands.In addition, the rotating speed due to cam driven unit is 2 times of the rotating speed of cam part, the track number of spiral helicine motion track can be set to 2 circles.

In addition, the feature of clock machine core of the present invention is, possesses above-mentioned indication mechanism.

In addition, the feature of clock and watch of the present invention is, possesses above-mentioned clock machine core.

According to the present invention, by possessing above-mentioned indication mechanism, can obtain can by simple structure delineation go out the motion track of the complexity of instruction unit, the clock machine core of intention excellence and clock and watch.

According to the present invention, owing to possessing the control gear making the translational speed of instruction unit different, the motion track of the complexity of instruction unit can be gone out by simple structure delineation, thus the intention of indication mechanism can be improved.

Accompanying drawing explanation

Fig. 1 is the outside drawing of the clock and watch of embodiment.

Fig. 2 is from key diagram during back side movement.

Fig. 3 is the cut-open view of the movement shown in Fig. 2.

Fig. 4 is the key diagram of indication mechanism, and key diagram when being display 0.

Fig. 5 is the key diagram of indication mechanism, and key diagram when being display 1.

Fig. 6 is the key diagram of indication mechanism, and key diagram when being display 2.

Fig. 7 is the key diagram of indication mechanism, and key diagram when being display 3.

Fig. 8 is the key diagram of indication mechanism, and key diagram when being display 4.

Fig. 9 is the key diagram of indication mechanism, and key diagram when being display 5.

Figure 10 is the key diagram of indication mechanism, and key diagram when being display 6.

Figure 11 is the key diagram of indication mechanism, and key diagram when being display 7.

Figure 12 is the key diagram of indication mechanism, and key diagram when being display 8.

Figure 13 is the key diagram of indication mechanism, and key diagram when being display 9.

Figure 14 is the key diagram of indication mechanism, and key diagram when being display 10.

Figure 15 is the key diagram of indication mechanism, and key diagram when being display 11.

Figure 16 is the key diagram of indication mechanism, and key diagram when being display 12.

Figure 17 is the key diagram of the indication mechanism of the 1st variation of embodiment.

Figure 18 is the key diagram of the indication mechanism of the 2nd variation of embodiment.

Label declaration

1: clock and watch; 10: movement (clock machine core); 15: viewing area (display part); 21: little hour wheel; 35: power transfering part; 40: indication mechanism; 41: indicator; 42: instruction unit; 43: indicator gear wheel; 50: control gear; 51,151,251: cam part; 52,252: main cam face; 53,253a, 253b: auxiliary cam face; 55: cam driven unit; 60: bar; 61,161: follower; 62: bar gear; 152: main cam groove portion (groove portion); 153: auxiliary cam groove portion (groove portion); 161a: protuberance; C1: the 1 axle; C2: the 2 axle.

Embodiment

Below, accompanying drawing is utilized to be described embodiments of the present invention.

Below, first the mechanical type watch of embodiment (is equivalent to " clock and watch " of claim.) and load the movement of this wrist-watch and (be equivalent to " clock machine core " of claim.) be described, then, describe indication mechanism in detail.

(clock and watch)

Usually, the mechanical body of the drive part comprising clock and watch is called " movement ".Dial plate, pin are put into clock and watch housing after being installed on this movement thus the state being formed as finished goods is called " finished product (commplete) " of clock and watch.The side that there is clock and watch housing glass formed in the both sides of the base plate of clock and watch substrates, the side that namely there is dial plate are called " dorsal part " of movement.In addition, the side that there is the shell body rear cover of clock and watch housing in the both sides of base plate, namely contrary with dial plate side are called " the positive side " of movement.

Fig. 1 is the outside drawing of the clock and watch 1 of embodiment.

As shown in Figure 1, the finished product of the clock and watch 1 of present embodiment possesses movement 10 in the clock and watch housing 3 be made up of not shown shell body rear cover and glass 2, represent with the dial plate 11 of the information of time correlation, the minute hand 5 to represent minute, represent the second hand 6 of second and have the indicator 41 of instruction unit 42, and this instruction unit 42 possesses the function of hour hands and expression hour.The clock and watch 1 of present embodiment be especially about hour information display in possess the mechanical clock and watch 1 of the special indication mechanism 40 for improving intention.

In the not shown arbor bullport of base plate 20, be incorporated with arbor 8 in the mode that can rotate.This arbor 8 is such as the timepiece of the use when revising the date or revise moment display (hour and minute display).Be provided with table hat 9 in an end of arbor 8, this table hat 9 is positioned at the side of clock and watch housing 3.

Arbor 8 is supported to can rotates by arbor bullport, and, such as 2 grades of draw out operation can be carried out along the bearing of trend of arbor 8.Now, by be configured in the dorsal part of base plate 20, the not shown switching device shifter such as pulling needle bar, trip(ping) lever or trip(ping) lever stage clip decides the position of the bearing of trend of arbor 8.

Further, in the following description, using the rotation center of minute hand 5 and second hand 6 as the 1st axle C1, the direction vertical with the axis of the 1st axle C1 is called radial direction, by around the 1st axle C1 around direction be called circumference.In addition, using the side of upstream side clockwise as circumference, downstream is called the opposite side of circumference.In addition, from end on observation, will through the 1st axle C1 and along the axle of arbor 8 as X-axis, using the right side in Fig. 1 as+X side, using left side as-X side.In addition, will through the 1st axle C1 and the axle vertical with X-direction as Y-axis, using the upside in Fig. 1 as+Y side, using downside as-Y side.Below, X-Y orthogonal coordinate system is used to be described as required.

Dial plate 11 is such as formed as 6 limit shapes on the whole, is provided with represents minute and the scale 12 of information of second in each bight of the first type surface of dial plate 11.

Ratio scale 12 on the first type surface of dial plate 11 is that the viewing area 15 showing mark 13 (is equivalent to " display part " of claim by the region of radially inner side.), described mark 13 by represent about hour the numeral of " 0 " to " 12 " of information form.In viewing area 15, with mark 13 show accordingly the morning or afternoon from 0 o'clock to 12 o'clock hour information.

In viewing area 15, the mark 13 of from " 0 " to " 12 " is circumferentially deasil arranged in order.In the present embodiment, during from end on observation, in (+X ,+Y) region, offseting the position display " 0 " of angle of regulation in the clockwise direction relative to X-axis.In addition, " 0 " later mark 13 arranges in the shape of a spiral to become large mode gradually apart from the distance of the 1st axle C1 and configures successively clockwise, and the mark 13 of " 12 " is configured in radial outermost and in+Y-axis.In addition, each numeral of mark 13 is to improve in the region being such as configured at rounded shape depression and formation for the purpose of intention respectively on dial plate 11, and circumferentially adjacent numeral is shown in the mode linked by straight line each other.

In viewing area 15, be provided with indication mechanism 40, this indication mechanism 40 possesses: instruction unit 42, and it is for representing that the time passes through; With control gear 50, it passes through corresponding to the time and makes the translational speed of instruction unit 42 different.Instruction unit 42 is configured to, mobile in viewing area 15 by control gear 50, instruction represent about hour each mark 13 of from " 0 " to " 12 " of information.For the indication mechanism 40 possessing instruction unit 42 and control gear 50, describe in detail later.

In the viewing area 15 of dial plate 11, offer date window 11a, this date window 11a represents the numeral on date for expressing.Thus, clock and watch 1 are except except acknowledging time, can confirming the date.

Fig. 2 is the key diagram observing the movement 10 shown in Fig. 1 from dorsal part (dial plate 11 side).Further, in fig. 2, for ease of understanding, illustrate through dial plate 11.In addition, numeral or line, the date window 11a that dial plate 11 is formed and the date wheel pressing plate 29 of display on dial plate 11 is illustrated with double dot dash line.In addition, the diagram of minute hand 5 and second hand 6 (with reference to Fig. 1) is eliminated.

Fig. 3 is the cut-open view of the movement 10 shown in Fig. 2.And, in figure 3, with the inside surface of base plate 20 side of dial plate 11 for border, being cut-open view along the A-A1 line in Fig. 2 than the inside surface of dial plate 11 by the part of base plate 20 side, is cut-open views along the A-A2 line in Fig. 2 than the inside surface of dial plate 11 by the part of the opposition side of base plate 20.

As shown in Figure 2, movement 10 has the base plate 20 of the substrate forming movement 10.The face of the positive side of this base plate 20 is at least configured with: not shown escapement speed limiting mechanism, it comprises hair-spring balance, escape wheel, escapement lever etc.; With not shown face side train, it comprises No. four wheels, No. three wheels, No. two wheels and driving wheel on barrels.

As shown in Figure 3, be at least configured with the dorsal part train, the date wheel 30, the 1st that comprise minute wheel 17, back gear 18 and little hour wheel 21 to change day breast wheel 24, the 2nd and change day breast wheel 25, date finger driving wheel 26 in dial plate 11 side of base plate 20, jump day pawl 27, date indicator jumper 28 (with reference to Fig. 2).In addition, be provided with date wheel pressing plate 29 at the dorsal part of base plate 20, described date wheel pressing plate 29 presses date wheel 30, the 1st and changes day breast wheel 24, the 2nd and change day breast wheel 25, date finger driving wheel 26, jump day pawl 27 and date indicator jumper 28 (with reference to Fig. 2).In addition, at the dorsal part of date wheel pressing plate 29, dial plate 11 configures in the mode can carrying out visual confirmation through glass 2 (with reference to Fig. 1).

No. four wheels, minute wheel 17 and little hour wheels 21 configure on the same axis relative to the 1st axle C1 respectively.Wherein, minute wheel 17 is configured to the rotation by means of driving wheel on barrel and turns around via No. two wheels and No. three 1 hour inward turning that is rotated in of taking turns.Further, this minute wheel 17 is provided with minute hand 5.In addition, No. four wheels are configured to rotate 1 circle via No. two wheels and being rotated between 1 minute of No. three wheels.Further, along No. four arbors 16 that the 1st axle C1 is extended, second hand 6 is being installed from these No. four wheels.

Little hour wheel 21 is configured to rotate 1 circle via minute wheel 17 and being rotated in 12 hours of back gear 18.The end side of little hour wheel 21 becomes path cylinder portion 21a, and the base end side of little hour wheel 21 becomes large footpath cylinder portion 21b.Embeddingly be fixed with the cam part 51 forming control gear 50 described later path cylinder portion 21a is upper outside.In addition, the unit gear 56 forming control gear 50 described later is inserted with large footpath cylinder portion 21b is upper outside.

As shown in Figure 2, date wheel 30 is mounted to rotatable relative to base plate 20, and is the parts being formed as ring-type on the whole.Date wheel 30 is formed with multiple internal tooth 30a along the inner peripheral of peristome.The first type surface of dorsal part in date wheel 30, movement 10 (i.e. dial plate 11 side) shows the date word of expression from the date of No. 1 to No. 31.Further, in fig. 2, illustrate only the part in the date word of display in date wheel 30.

As shown in Figure 3, the driving force of little hour wheel 21 is changed day breast wheel 24 and the 2nd and is changed the rotation of day breast wheel 25 via being mounted to the rotatable 1st relative to base plate 20 and be passed to date finger driving wheel 26.

Date finger driving wheel 26 is that 1 time (when when reaching the morning 0) makes the date wheel 30 rotation amount corresponding with the date of 1 day carry out jumping the timepiece of day in 1 day, and be configured to change based on little hour wheel 21, the 1st rotation that day breast wheel 24 and the 2nd changes day breast wheel 25, in 24 hours, rotate 1 circle counterclockwise.The jumping day pawl 27 that can engage with the internal tooth 30a of date wheel 30 is formed at the dorsal part (dial plate 11 side) of date finger driving wheel 26.When date finger driving wheel 26 counterclockwise rotary motion time, jump day pawl and 27 to engage with the internal tooth 30a of date wheel 30.Thus, the revolving force of date finger driving wheel 26 is passed to the internal tooth 30a of date wheel 30 via jumping day pawl 27.Further, date wheel 30 is made to rotate the amount corresponding with the date of 1 day counterclockwise when date finger driving wheel 26 often rotates 1 circle.

Change the 1st and day breast wheel 24 is formed with unit drives teeth portion 24a than the position of date wheel pressing plate 29 backrest side (dial plate 11 side).Unit drives teeth portion 24a engages with the unit gear 56 forming cam driven unit 55 described later, the driving force of little hour wheel 21 is passed to unit gear 56, while make the rotating speed of unit gear 56 increase.

As shown in Figure 2, date indicator jumper 28 is the timepieces of position of sense of rotation for fixed date wheel 30, and possesses: can the date indicator jumper spring 28a of elastic deformation, and its base end part is fixed on the dorsal part of base plate 20, and its terminal part is free end; With holding section 28b, it is arranged at the terminal part of date indicator jumper spring.Date indicator jumper spring 28a exerts a force towards the internal tooth 30a side of date wheel 30 to the holding section 28b of date indicator jumper 28, and the holding section 28b of date indicator jumper 28 is formed as to engage with the internal tooth 30a of date wheel 30.Engaged with the internal tooth 30a of date wheel 30 by holding section 28b, date indicator jumper 28 fixed date wheel 30 rotation.

(indication mechanism)

Next, indication mechanism 40 is explained.

Indication mechanism 40 possesses: instruction unit 42, its illustrate about hour information, for representing that the time passes through; With control gear 50, it passes through corresponding to the time and makes the translational speed of instruction unit 42 different.In addition, control gear 50 possesses: the cam part 51 of axle centered by the 1st axle C1; With the cam driven unit 55 rotated in a circumferential direction around cam part 51.

As shown in Figure 3, the mode of cam part 51 axle centered by the 1st axle C1 is outer relative to the path cylinder portion 21a of little hour wheel 21 fixing.Cam part 51 abuts with the end difference arranged at the path cylinder portion 21a of little hour wheel 21 and the boundary of large footpath cylinder portion 21b and is located in the axial direction, and, utilize the deck 22 being embedded in path cylinder portion 21a from the dorsal part of movement 10 to prevent from coming off in the axial direction.Cam part 51 and little hour wheel 21 rotated 1 rotating speed enclosed, with the 1st axle C1 for rotation center rotates clockwise with identical with little hour wheel 21 together in 12 hours.

As shown in Figure 2, the outer peripheral face of cam part 51 is formed by main cam face 52 and cascaded surface 54, with toward the clockwise direction, (from the side of circumference to opposite side) radius becomes large mode and is formed as spiral fashion in described main cam face 52, and described cascaded surface 54 radius apart from the 1st axle C1 linked on main cam face 52 is minimum position and the radius apart from the 1st axle C1 is maximum position.

Main cam face 52 is formed by multiple auxiliary cam face 53.The mark 13 that auxiliary cam face 53 corresponds to from 1 o'clock to 12 o'clock (0 point) circumferentially arranges and is provided with 12 faces.Multiple auxiliary cam face 53 is from the concave curved surface shape being formed as the curvature with regulation during end on observation respectively.In the present embodiment, the curvature in multiple auxiliary cam face 53 is formed as gradually changing in the circumferential respectively.

(cam driven unit)

Cam driven unit 55 is formed primarily of unit gear 56, arm 58, bar 60 and indicator 41.

As shown in Figure 3, unit gear 56 is via inserting in a hour large footpath cylinder portion 21b for wheel 21 outside duct member 57.Unit gear 56 relatively can rotate relative to little hour wheel 21.

The end of base plate 20 side of unit gear 56 is unit teeth portion 56a.The unit drives teeth portion 24a that unit teeth portion 56a and the 1st changes day breast wheel 24 engages.Thus, transmit the driving force of little hour wheel 21 via unit drives teeth portion 24a, the rotating speed of unit gear 56 increases.In the present embodiment, the rotating speed of unit gear 56 is rotating speeds of 2 times of little hour wheel 21, and unit gear 56 is configured in 12 hours, rotate 2 circles.

The side contrary with unit teeth portion 56a of unit gear 56 is cylindrical portion 56b.

The arm body 58a of arm 58 radially extends, and on the outer cylindrical portion 56b being fixed on unit gear 56 of the medial end of radial direction.Arm 58 and unit gear 56 rotated 2 rotating speeds enclosed, with the 1st axle C1 for rotation center rotates clockwise with identical with unit gear 56 together in 12 hours.

Ratio center section position in the outer part in the radial direction of arm 58, carries out axle supporting via the bar spindle unit be installed on arm 58 59 pairs of bars 60.

As shown in Figure 2, bar 60 bends from the axle supporting part of bar spindle unit 59 towards cam part 51 and stretches out.One end of the inner side of the radial direction on bar 60, is formed with the hook-shaped follower 61 with main cam face 52 and auxiliary cam face 53 sliding contact.

The other end of radial outside on bar 60 is formed with bar gear 62.Bar gear 62 is formed as the fan shape centered by bar spindle unit 59, is formed with multiple teeth portion at outer peripheral face.

Bar 60 is exerted a force to follower 61 towards cam part 51 with the acting force of regulation via indicator gear wheel 43 all the time by the back-moving spring 46 be located on indicator 41.Back-moving spring 46 such as adopts torsion-coil spring.

Indicator 41 to be bearing in the outboard end in the radial direction of arm 58 by axle in the mode can rotated around the 2nd axle C2 via the indicator spindle unit 44 be installed on arm 58.

Indicator 41 is formed in the mode of stretching out from the cylinder portion 43a of indicator gear wheel 43.

Instruction unit 42 is formed in the end of the side contrary with axle supporting part of indicator 41.Instruction unit 42 is formed as ring-type, and is formed in the mode that internal diameter is larger than the profile of each numeral of mark 13.Thus, in the inner side of instruction unit 42 being formed as ring-type, can each numeral of explicit identification 13.

In the side contrary with instruction unit 42 of indicator 41 and the other end corresponding with the axle supporting part of indicator 41, be formed with the indicator gear wheel 43 engaged with bar gear 62.That is, bar 60 and indicator 41 are linked together by the power transfering part 35 formed by bar gear 62 and indicator gear wheel 43.

By making little hour wheel 21 rotate via the rotation of not shown driving wheel on barrel, minute wheel 17 and back gear 18, thus, the cam part 51 formed as described so and cam driven unit 55 rotate around the 1st axle C1.

Specifically, cam part 51 rotates clockwise with the rotating speed rotating 1 circle in 12 hours, and cam driven unit 55 rotates clockwise with the rotating speed rotating 2 circles in 12 hours.Further, the bar 60 of cam driven unit 55 under the state exerted a force towards cam part 51 pairs of followers 61 and main cam face 52 and auxiliary cam face 53 sliding contact, while move around cam part 51 clockwise together with arm 58.

Now, because multiple auxiliary cam face 53 is formed as concave curved surface shape, therefore, the follower 61 of bar 60 along multiple auxiliary cam face 53 relative to the 1st axle C1 close to or away from, while move around cam part 51.Further, by the movement of the follower 61 of bar 60 of accompanying with the rotation of cam driven unit 55, bar 60 swings around cam part 51 in rotary moving.

In addition, the power that bar 60 swings is passed to indicator 41 via the power transfering part 35 formed by bar gear 62 and indicator gear wheel 43.Thus, indicator 41 rotates and rotates around cam part 51 clockwise on one side centered by the 2nd axle C2, represents the mark 13 be made up of the numeral from 0 to 12 to hour relevant information in the display of the inner side of instruction unit 42 simultaneously.

At this, the oscillating quantity of bar 60 in present embodiment and the variable quantity of swing speed depend on the curve form in auxiliary cam face 53.Specifically, auxiliary cam face 53 variable quantity is diametrically larger, then more can increase the oscillating quantity of bar 60 and the variable quantity of speed.

In addition, the oscillating quantity of indicator 41, except the oscillating quantity (i.e. the shape in auxiliary cam face 53) depending on bar 60, also depends on the ratio of the number of teeth of indicator gear wheel 43 and the number of teeth of bar gear 62.Specifically, the ratio of the number of teeth of indicator gear wheel 43 is greater than by the ratio of the number of teeth making bar gear 62, oscillating quantity when indicator 41 rotates can be increased, thus increase the oscillating quantity of instruction unit 42, the ratio of the number of teeth of indicator gear wheel 43 is less than by the ratio of the number of teeth making bar gear 62, oscillating quantity when indicator 41 rotates can be reduced, thus reduce the oscillating quantity of instruction unit 42.

In the present embodiment, to make instruction unit 42 move between each numeral of mark 13 mode depicting the motion track of linearity time regulates the ratio of the curve form in auxiliary cam face 53 and the number of teeth of indicator gear wheel 43 and the number of teeth of bar gear 62.

(effect)

Fig. 4 to Figure 16 is the key diagram of indication mechanism 40 respectively, is the key diagram during moment of display regulation.Further, in Fig. 4 to Figure 16, the diagram of minute hand 5 or second hand 6, back-moving spring 46 etc. (with reference to Fig. 1) is suitably eliminated.

Next, the effect of the indication mechanism 40 of present embodiment is described.Below, with reference to Fig. 4 to Figure 16, the instruction unit 42 forming indication mechanism 40 action effect till tenth skill after the display moment 12 from the moment 0 is described successively.

As shown in Figure 4, under the original state of mark 13 (i.e. moment 0 point) that instruction unit 42 shows " 0 ", the cascaded surface 54 of cam part 51 is configured in the initial position in (-X ,-Y) region.In addition, the arm 58 of cam driven unit 55 is configured in the initial position in (-X ,+Y) region.In addition, the follower 61 of the bar 60 in cam driven unit 55 with in multiple auxiliary cam face 53, the 1st auxiliary cam face 53a abuts, the 1st auxiliary cam face 53a is adjacent with cascaded surface 54 and be positioned at radial inner side.

Next, along with the process of time, cam part 51 and cam driven unit 55 rotate around the 1st axle C1.Now, be configured to, cam part 51 rotates clockwise with the rotating speed rotating 1 circle in 12 hours, and cam driven unit 55 rotates clockwise with the rotating speed rotating 2 circles in 12 hours.Therefore, the follower 61 of cam driven unit 55 circumferentially relatively rotates around cam part 51, with the 1st auxiliary cam face 53a sliding contact while mobile.

Now, the 1st auxiliary cam face 53a is formed as concave curved surface shape.Therefore, follower 61 along the 1st auxiliary cam face 53a relative to the 1st axle C1 close to or away from, while move around cam part 51.Thus, by the movement of the follower 61 of bar 60 of accompanying with the rotation of cam driven unit 55, bar 60 swings around cam part 51 in rotary moving.

In addition, the power that bar 60 swings is passed to indicator 41 via the power transfering part 35 formed by bar gear 62 and indicator gear wheel 43.Thus, indicator 41 rotates centered by the 2nd axle C2, rotates clockwise on one side around cam part 51.At this, in the present embodiment, the ratio of the curve form in auxiliary cam face 53 and the number of teeth of indicator gear wheel 43 and the number of teeth of bar gear 62 is regulated in the mode making instruction unit 42 depict the motion track of linearity between the mark 13 of each numeral.Therefore, instruction unit 42 moves linearly between " 0 " and the mark 13 of " 1 ".

Then, as shown in Figure 5, become 1 constantly little when the elapsed time started apart from action, cam part 51 rotates 30 ° clockwise from initial position, and cascaded surface 54 moves to (-X ,+Y) region.In addition, the arm 58 of cam driven unit 55 rotates 60 ° clockwise from initial position and moves to (+X ,+Y) region.In addition, the follower 61 of the bar 60 in cam driven unit 55 abuts with the boundary member of the 1st auxiliary cam face 53a and the 2nd auxiliary cam face 53b.Further, the instruction unit 42 of indicator 41 shows the mark 13 of " 1 ".

Cam part 51 and cam driven unit 55, along with the process of time, continue action in the same manner as described above.Now, the follower 61 of bar 60 with main cam face 52 sliding contact while mobile.Therefore, the follower 61 of bar 60, along with the process of time, is configured in than the position of the initial position abutted with the 1st auxiliary cam face 53a by radial outside.Thus, bar 60 becomes state in rotary moving clockwise from initial position centered by bar spindle unit 59 along with the process of time.

In addition, the instruction unit 42 of indicator 41 moves to along with in rotary moving from initial position of bar 60 than the position of initial position by radial outside.Thus, the instruction unit 42 of indicator 41 makes translational speed different, rotates while the outside to radial direction is moved clockwise meanwhile, spiral helicine " 1 " later mark 13 is configured to become large mode gradually apart from the distance of the 1st axle C1 therefore, it is possible to demonstrate.Further, in figure 6, instruction unit 42 shows instruction unit 42 in the mark 13, Fig. 7 of " 2 " and shows instruction unit 42 in the mark 13, Fig. 8 of " 3 " and show instruction unit 42 in the mark 13, Fig. 9 of " 4 " and show the mark 13 of " 5 ".

Further, as shown in Figure 10, become 6 constantly little when the elapsed time started apart from action, cam part 51 rotates 180 ° clockwise from initial position, and cascaded surface 54 moves to (+X ,+Y) region.In addition, the arm 58 of cam driven unit 55 is from initial position rotating 360 degrees and move to the position identical with the initial position in (-X ,+Y) region clockwise.In addition, the follower 61 of the bar 60 in cam driven unit 55 abuts with the boundary member of the 6th auxiliary cam face 53c and the 7th auxiliary cam face 53d.

Cam part 51 and cam driven unit 55 are in rotary moving through continuing along with the time.Thus, instruction unit 42 shows " 6 " later mark 13.And, instruction unit 42 shows the mark 13 of " 7 " in fig. 11, instruction unit 42 shows the mark 13 of " 8 " in fig. 12, in Figure 13, instruction unit 42 shows the mark 13 of " 9 ", in Figure 14, instruction unit 42 shows instruction unit 42 in the mark 13, Figure 15 of " 10 " and shows the mark 13 of " 11 ".

Next, as shown in figure 16, become 12 constantly little when the elapsed time started apart from action, the follower 61 of bar 60 is configured in the boundary member of main cam face 52 and cascaded surface 54 and is the position that outside from from the 1st axle C1 to radial direction leaves farthest.Now, bar 60 to become centered by bar spindle unit 59 from initial position clockwise with the state that maximum angle is in rotary moving.Further, the instruction unit 42 of indicator 41 moves to radial outermost along with the in rotary moving of bar 60, thus can show the mark 13 of " 12 ".

Next, when have passed through 12 hours from action, the follower 61 of bar 60, along cascaded surface 54 towards the medial movement of radial direction, is configured in the 1st auxiliary cam face 53a as initial position as shown in Figure 4.In addition, bar 60 rotates centered by bar spindle unit 59 counterclockwise along with the movement of follower 61.Further, the instruction unit 42 of indicator 41 moves to radial most medial movement along with bar 60, thus again can show the mark 13 of " 0 ".

After this, by repeating above-mentioned action, instruction unit 42 can repeat the mark 13 showing from " 0 " to " 12 " while depicting complicated motion track.

According to the present embodiment, make owing to possessing the control gear 50 that the translational speed of instruction unit 42 is different, therefore, it is possible to gone out the motion track of the complexity of instruction unit by simple structure delineation, thus the intention of indication mechanism 40 can be improved.

In addition, owing to utilizing the cam part 51 of axle centered by the 1st axle C1 and defining control gear 50 around the cam driven unit 55 rotated in a circumferential direction of cam part 51, therefore, control gear 50 can realize the less simple structure of number of components.In addition, because cam driven unit 55 possesses bar 60, described bar 60 at one end portion is formed with the follower 61 contacted with cam part 51, and described bar 60 swings while circumferentially rotate around cam part 51 along with rotating, therefore, by changing the shape of outer peripheral face of cam part 51, can the oscillating quantity of at random set lever 60.In addition, by changing follower 61 relative to the relative moving speed of cam part 51, can the swing speed of at random set lever 60.In addition, indicator 41 is supported to rotate around the 2nd axle C2, and, together with the other end of bar 60 and the other end of indicator 41 are attached at via the power transfering part 35 formed by bar gear 62 and indicator gear wheel 43, therefore, indicator 41 can correspond to the oscillating quantity of bar 60 of setting and swing speed while rotate around the 2nd axle C2, circumferentially rotates around cam part 51.Like this, the shape of the outer peripheral face of cam part 51 and follower 61 can be utilized relative to the relative moving speed of cam part 51, the motion track of the instruction unit 42 of indicator 41 is determined the track for expecting, therefore, the motion track of the complexity of instruction unit 42 can be gone out with simple structure delineation, thus the intention of indication mechanism 40 can be improved.

In addition, power transfering part 35 is formed by indicator gear wheel 43 and bar gear 62, therefore, by the ratio of the number of teeth of the number of teeth with bar gear 62 that change intermeshing indicator gear wheel 43, the motion track of the complexity of instruction unit 42 can be depicted further, thus the intention of indication mechanism 40 can be improved.Particularly, the ratio of the number of teeth of indicator gear wheel 43 is greater than by the ratio of the number of teeth making bar gear 62, oscillating quantity when indicator 41 rotates can be increased, thus increase the oscillating quantity of instruction unit 42, the ratio of the number of teeth of indicator gear wheel 43 is less than by the ratio of the number of teeth making bar gear 62, oscillating quantity when indicator 41 rotates can be reduced, thus reduce the oscillating quantity of instruction unit 42.Like this, except the shape that utilizes the outer peripheral face of cam part 51 and the relative moving speed of follower 61 relative to cam part 51, can also by the ratio of the change number of teeth of indicator gear wheel 43 with the number of teeth of bar gear 62, the motion track of the instruction unit 42 of indicator 41 is determined the track for expecting, therefore, the motion track of the complexity of instruction unit 42 can be gone out with simple structure delineation, thus the intention of indication mechanism 40 can be improved.

In addition, main cam face 52 by make the follower 61 of bar 60 relative to the 1st axle C1 close to or away from multiple auxiliary cam faces 53 formed, therefore, by changing the shape in auxiliary cam face 53, thus, when the follower 61 of bar 60 rotates under the state contacted with the main cam face 52 of cam part 51 around cam part 51, can the oscillating quantity of adjusting lever 60.Therefore, the motion track of instruction unit 42 such as can be made to be formed as such as curve-like or be formed as linearity, therefore, it is possible to depict the motion track of expectation.

In addition, cam part 51 and cam driven unit 55 rotate towards opposite side from the side of circumference in the same direction around the 1st axle C1, cam driven unit 55 rotates, therefore, it is possible to make cam driven unit 55 relatively rotate relative to cam part 51 with the speed higher than cam part 51.In addition, during cam part 51 is revolved and turned around, cam driven unit 55 is multi-turn rotation around cam part 51, thereby, it is possible to make the motion track of instruction unit 42 be formed as having the spiral fashion of the track number corresponding with the track number of cam driven unit 55.Like this, the rotating ratio that can correspond to cam part 51 and cam driven unit 55 changes the track number of spiral helicine motion track, therefore, it is possible to go out the motion track of the complexity of instruction unit 42 with simple structure delineation, thus the intention of indication mechanism 40 can be improved.

In addition, because cam part 51 is installed in the little hour wheel 21 that 12 hours inward turnings turn around, therefore, it is possible to what depict instruction unit 42 was the motion track in 1 cycle with 12 hours.Therefore, using instruction unit 42 as being suitable during hour hands.In addition, the rotating speed due to cam driven unit 55 is 2 times of the rotating speed of cam part 51, the track number of spiral helicine motion track can be set to 2 circles.

In addition, by possessing above-mentioned indication mechanism 40, can obtain thus can by simple structure delineation go out the motion track of the complexity of instruction unit 42, the movement 10 of intention excellence and clock and watch 1.

(the 1st variation of embodiment)

Next, the indication mechanism 40 of the 1st variation of embodiment is described.

Figure 17 is the key diagram of the indication mechanism 40 of the 1st variation of embodiment.

In the indication mechanism 40 of embodiment, cam part 51 possesses main cam face 52, multiple auxiliary cam face 53 and cascaded surface 54, follower 61 with main cam face 52 and multiple auxiliary cam face 53 sliding contact while mobile (with reference to Fig. 1).

On the other hand, as shown in figure 17, in the indication mechanism 40 of the 1st variation of embodiment, cam part 151 possesses main cam groove portion 152, multiple auxiliary cam groove portion 153 and step trough portion 154, and different from embodiment in main cam groove portion 152, multiple auxiliary cam groove portion 153 and step trough portion 154 movement at follower 161.Further, below, the component part identical with embodiment is omitted the description, only different parts is described.

Main cam groove portion 152 is formed as spiral fashion to become large mode apart from the distance radially of the 1st axle C1 towards clockwise direction (from the side of circumference to opposite side) on the first type surface of such as discoid disk component.Main cam groove portion 152 is formed in the following manner: circumferentially connect setting by with multiple (12) the auxiliary cam groove portion 153 formed to the mode of lateral bend in radial direction.Step trough portion 154 by by main cam groove portion 152 apart from the radius of the 1st axle C1 be minimum position and for maximum position couples together and formed.

In addition, the follower 161 of bar 60 is by being formed along the protuberance 161a of main cam groove portion 152 and portion 153 movement of auxiliary cam groove.Protuberance 161a such as gives prominence to towards cam part 151 in mode axially from an end of the radially inner side bar 60 and is formed.By protuberance 161a being configured in main cam groove portion 152, when cam part 151 rotates clockwise with the rotating speed rotating 1 circle in 12 hours and makes cam driven unit 55 rotate clockwise with the rotating speed rotating 2 circles in 12 hours, follower 161 can move along main cam groove portion 152 and multiple auxiliary cam groove portion 153.Thus, the instruction unit 42 of indicator 41 can ground action identical with embodiment, carrys out explicit identification 13.

According to the 1st variation of embodiment, simply and at low cost cam part 151 can be formed.In addition, due to bar 60 follower 161 by can along main cam groove portion 152, the protuberance 161a of auxiliary cam groove portion 153 and step trough portion 154 movement formed, therefore, by means of only the protuberance 161a of bar 60 is configured in main cam groove portion 152, auxiliary cam groove portion 153 and step trough portion 154 any one, follower 161 just can be made along main cam groove portion 152, auxiliary cam groove portion 153 and step trough portion 154 move.Therefore, the force application part that the mode that such as there is no need for follower 161 is contacted with cam part 151 exerts a force towards cam part 151 pairs of followers 161 (such as, back-moving spring 46 in embodiment, with reference to Fig. 1), therefore, it is possible to make indication mechanism 40 be formed as simpler structure, and cost degradation can be realized further.

(the 2nd variation of embodiment)

Next, the indication mechanism 40 of the 2nd variation of embodiment is described.

Figure 18 is the key diagram of the indication mechanism 40 of the 2nd variation of embodiment.

In the indication mechanism 40 of embodiment, the outer peripheral face of cam part 51 is formed by main cam face 52 and cascaded surface 54, multiple auxiliary cam faces 53 of concave curved surface shape circumferentially arrange and configure thus become large mode with radius and are formed as spiral fashion by described main cam face 52, and described cascaded surface 54 will be minimum position apart from the radius of the 1st axle C1 and couple together (reference Fig. 1) for maximum position.

On the other hand, as shown in figure 18, indication mechanism 40 and the embodiment difference of the 2nd variation of embodiment are, the outer peripheral face of cam part 251 is formed by the main cam face 252 of 2 auxiliary cam faces 253a, 253b possessing convex surface shape.Further, below, the component part identical with embodiment is omitted the description, only different parts is described.

The main cam face 252 of cam part 251 is formed as from heart shape during end on observation by 2 auxiliary cam faces 253a, 253b of convex surface shape.A boundary member in the boundary member of 2 auxiliary cam faces 253a, 253b becomes the minimum penetralia 254a of separating distance apart from the 1st axle C1, and another boundary member becomes the maximum most external 254b of separating distance apart from the 1st axle C1.Further, in figure 18, be in penetralia 254a and be configured in (+X ,+Y) region and most external 254b is configured in the state in (-X ,-Y) region.In addition, the follower 61 of bar 60 is positioned on the most external 254b in main cam face 252, position is farthest left in the outside be configured in from the 1st axle C1 to radial direction.Now, the instruction unit 42 of indicator 41 moves to radial outermost along with the in rotary moving of bar 60, thus demonstrates the mark 13 of " 12 ".

In viewing area 15, the mark 13 of " 1 " to " 12 " is circumferentially deasil arranged in order.In the present embodiment, during from end on observation, in (+X ,+Y) region, and there is the mark 13 of " 1 " in the position display of the angle offseting regulation relative to X axis clockwise.In addition, the mark 13 of " 1 " to " 6 " arranges in the mode diminished gradually apart from the distance of the 1st axle C1 and configures successively clockwise.In addition, the mark 13 of " 7 " to " 12 " arranges to become large mode gradually apart from the distance of the 1st axle C1 and configures successively clockwise.Further, the mark 13 of " 3 " and " 9 " is presented at identical position respectively.

(effect of the indication mechanism of the 2nd variation of embodiment)

Next, the effect of the indication mechanism 40 of the 2nd variation of present embodiment is described.Below, illustrate successively form the instruction unit 42 of indication mechanism 40 from the moment 12 action until again showing moment 12 and effect till tenth skill.

Under the original state of mark 13 (i.e. moment 12 or 0 point) that instruction unit 42 shows " 12 ", the most external 254b of cam part 251 is configured in the initial position in (-X ,-Y) region.In addition, the arm 58 of cam driven unit 55 is configured in the initial position in (-X ,+Y) region.In addition, the follower 61 of the bar 60 in cam driven unit 55 is in (-X ,-Y) region, abuts with the most external 254b in main cam face 252.

Along with the process of time, cam part 251 and cam driven unit 55 rotate around the 1st axle C1.Now, cam part 251 is configured to, and rotates clockwise with the rotating speed rotating 1 circle in 12 hours, and cam driven unit 55 rotates clockwise with the rotating speed rotating 2 circles in 12 hours.Therefore, the follower 61 of cam driven unit 55 rotates, with the 1st auxiliary cam face 253a sliding contact while move towards penetralia 254a relatively along the circumference of cam part 251.

At this, the 1st auxiliary cam face 253a is formed in the mode diminished gradually from most external 254b towards penetralia 254a apart from the separating distance of the 1st axle C1.Therefore, follower 61 moves closer to relative to the 1st axle C1, while move around cam part 251 along the 1st auxiliary cam face 253a.Thus, by the movement of the follower 61 of bar 60 of accompanying with the rotation of cam driven unit 55, bar 60 swings around cam part 251 in rotary moving.Now, instruction unit 42 rotates on one side clockwise gradually to the medial movement of radial direction.

In addition, the power that bar 60 swings is passed to indicator 41 via the power transfering part 35 formed by bar gear 62 and indicator gear wheel 43.Thus, indicator 41 rotates centered by the 2nd axle C2, while be rotated in a clockwise direction around cam part 251.At this, in the present embodiment, the ratio of the curve form of auxiliary cam face 253a, 253b and the number of teeth of indicator gear wheel 43 and the number of teeth of bar gear 62 is regulated in the mode making instruction unit 42 depict the motion track of level and smooth arc-shaped between the mark 13 of each numeral.Therefore, the instruction unit 42 of indicator 41 moves in arc-shaped between " 12 " and the mark 13 of " 1 ".

Instruction unit 42 along with the time through rotating clockwise on one side to the medial movement of radial direction on one side, mark 13 that display " 1 " is later simultaneously.

Further, become 6 constantly little when the elapsed time started apart from action, cam part 251 rotates 180 ° clockwise from initial position, and penetralia 254a moves to (-X ,-Y) region, the position corresponding with the initial position of most external 254b.In addition, the arm 58 of cam driven unit 55 is from initial position rotating 360 degrees and move to the position identical with the initial position in (-X ,+Y) region clockwise.In addition, the follower 61 of the bar 60 in cam driven unit 55 abuts with penetralia 254a.Now, the follower 61 of bar 60 is configured in the position from the closest radial inner side of the 1st axle C1.Therefore, the inner side that instruction unit 42 is radial along with bar 60 in rotary moving moves to, thus the mark 13 of display " 6 ".

From action after 6 hours, the follower 61 of cam driven unit 55 rotates, with the 2nd auxiliary cam face 253b sliding contact while move to most external 254b along the circumference of cam part 251 relatively along with the process of time.Now, instruction unit 42, along with the process of time, rotates while the outside to radial direction is moved clockwise, shows " 6 " later mark 13 simultaneously.

Further, become 12 constantly little when the elapsed time started apart from action, cam part 251 rotates 1 circle, and cam driven unit 55 rotates 2 circles, and the follower 61 of bar 60 is positioned on the most external 254b in main cam face 252 again.Now, the instruction unit 42 of indicator 41 moves to radial outermost and shows the mark 13 of " 12 " along with the in rotary moving of bar 60.

After this, by repeating above-mentioned action, instruction unit 42 can depict the more complicated motion track different from embodiment, while repeat the mark 13 showing from " 1 " to " 12 ".

Further, technical scope of the present invention is not limited to above-mentioned embodiment, can apply various change without departing from the scope of spirit of the present invention.

The indication mechanism 40 of each variation of embodiment and embodiment is configured to, cam part 51,151,251 rotates clockwise with the rotating speed rotating 1 circle in 12 hours, and cam driven unit 55 rotates clockwise with the rotating speed rotating 2 circles in 12 hours, but the rotating speed of cam part 51 and cam driven unit 55 is not limited thereto.Such as, also can be configured to, cam part 51,151,251 rotates clockwise with the rotating speed rotating 1 circle in 12 hours, and cam driven unit 55 rotates clockwise with the rotating speed rotating 3 circles in 12 hours.In this case, the motion track of instruction unit 42 can be depicted as around the 1st axle C1 tri-circle.Like this, by carrying out various change to the rotating speed of cam part 51,151,251 and cam driven unit 55, the motion track of instruction unit 42 can be made to be formed as the shape expected.

In the indication mechanism 40 of embodiment, auxiliary cam face 53 is from the concave curved surface shape being formed as the curvature with regulation during end on observation respectively, but the shape in auxiliary cam face 53 is not limited to embodiment.Such as, auxiliary cam face 53 also from the convex surface shape being formed as the curvature respectively with regulation during end on observation, also can be formed in bending mode, also can be formed as plane.And the shape in multiple auxiliary cam face 53 also can be formed in the mode becoming different shape.Like this, by carrying out various change to the shape in auxiliary cam face 53, the motion track of instruction unit 42 can be made to be formed as the shape expected.

In the indication mechanism 40 of each variation of embodiment and embodiment, utilize bar gear 62 and indicator gear wheel 43 define for by the power transmission of bar 60 to the power transfering part 35 of indicator 41, but the form of power transfering part 35 is not limited to each variation of embodiment and embodiment.Such as, band and belt wheel also can be utilized bar 60 and indicator 41 to be linked up, form power transfering part 35 thus.

In the indication mechanism 40 of each variation of embodiment and embodiment, instruction unit 42 is formed as ring-type, in each numeral of the inner side explicit identification 13 of instruction unit 42, but, the shape of instruction unit 42 is not limited to each variation of embodiment and embodiment, can change to various shape.Therefore, the shape of instruction unit 42 such as can be made to be needle-like.

In the indication mechanism 40 of each variation of embodiment and embodiment, cam part 51,151,251 and cam driven unit 55 are that common rotary middle spindle rotates with the 1st axle C1, but the rotary middle spindle of cam part 51,151,251 and the rotary middle spindle of cam driven unit 55 may not be coaxially.

The display form of the mark 13 on dial plate 11 is not limited to each variation of embodiment and embodiment, can carry out various change.

In addition, in the indication mechanism 40 of each variation of embodiment and embodiment, indicator 41 has the function of hour hands, and instruction unit 42 represents hour.On the other hand, indicator 41 also can have the function of second hand, and instruction unit 42 represents second, and indicator 41 also can have the function of minute hand, and instruction unit 42 represents divides, and indicator 41 also can have the function of week pin, and instruction unit 42 represents week.That is, indication mechanism 40 is not limited to the form representing hour information.

In addition, suitably the textural element in above-mentioned embodiment can be replaced with known textural element without departing from the spirit and scope of the invention.

Claims (10)

1. an indication mechanism, is characterized in that,

This indication mechanism possesses:

Instruction unit, it is for representing that the time passes through; And

Control gear, it passes through corresponding to the described time and makes the translational speed of described instruction unit different.

2. indication mechanism according to claim 1, is characterized in that,

Described control gear possesses:

Cam part, it is axle centered by the 1st axle; With

Cam driven unit, it rotates in a circumferential direction along described cam part,

Described cam driven unit possesses:

Bar, one end is formed with the follower with described dwell contacts, and described bar swings along with the rotation of described cam driven unit and rotates in a circumferential direction along described around described cam part; With

Indicator, one end is formed with described instruction unit, the other end is supported to rotate around the 2nd axle of the radial outside being positioned at described cam part, and described indicator rotates in a circumferential direction along described around described cam part along with the rotation of described cam driven unit

The other end of described bar and the other end of described indicator link via power transfering part.

3. indication mechanism according to claim 2, is characterized in that,

Described power transfering part is formed by indicator gear wheel and bar gear,

Described indicator gear wheel is formed at the other end of described indicator,

Described bar gear shape is formed in the other end of described bar.

4. the indication mechanism according to Claims 2 or 3, is characterized in that,

Described cam part possesses main cam face, and described main cam face is formed along with the side from described circumference becomes large mode towards opposite side with radius,

Described main cam face by make the described follower of described bar relative to described 1st axle close to or away from multiple auxiliary cam faces formed.

5. the indication mechanism according to Claims 2 or 3, is characterized in that,

Described cam part possesses groove portion, and described groove portion is formed along with the side from described circumference becomes large mode towards opposite side with the distance along described radial direction apart from described 1st axle,

The described follower of described bar is by being formed along the protuberance of described groove portion movement.

6. indication mechanism according to claim 4, is characterized in that,

Described cam part and described cam driven unit rotate towards opposite side from the side of described circumference in the same direction around described 1st axle,

Described cam driven unit rotates with the speed higher than described cam part.

7. indication mechanism according to claim 5, is characterized in that,

Described cam part and described cam driven unit rotate towards opposite side from the side of described circumference in the same direction around described 1st axle,

Described cam driven unit rotates with the speed higher than described cam part.

8. the indication mechanism according to claim 6 or 7, is characterized in that,

Described cam part is installed in little hour wheel,

The rotating speed of described cam driven unit is 2 times of the rotating speed of described cam part.

9. a clock machine core, is characterized in that,

Described clock machine core possesses indication mechanism according to claim 1.

10. clock and watch, is characterized in that,

Described clock and watch possess clock machine core according to claim 9.