CN104049519A - Swing wheels, clock movement and clock - Google Patents

Abstract

The invention provides swing wheels, a clock movement provided with the swing wheels and a clock provided with the clock movement. The swing wheels are capable of easily adjusting the error rate to reduce errors of a release catch so that the characteristic of stable error rate is obtained. The swing wheels are characterized in that the swing wheels are provided with a swing shaft (30) and a balance spring. A balance wheel (20) is outwardly embedded at the swing shaft (30). The inner end portion of the balance spring is connected with the swing shaft (30).The wing wheels are formed in such a manner that when the inner peripheral surface (40a) of the balance spring (40) is lengthened along an axis of the swing shaft (30), the inner peripheral surface (40a) and a central axis (O) of the swing shaft (30) are intersected.

Description

Escapement, clock machine core and clock and watch

Technical field

The present invention relates to escapement, possess clock machine core and the clock and watch of this escapement.

Background technology

Mechanical clock possesses the escapement/speed adjusting gear for controlling forming the rotation of the driving wheel on barrel of face side train, No. two wheels, No. three wheels and No. four wheels.General escapement/speed adjusting gear is formed by escape wheel, escapement lever and escapement.And escapement is by forming as lower member: balance wheel; Balance staff, it becomes the rotation center of balance wheel; Hairspring, it forms scroll along archimedes curve, and tightens to make balance wheel with the vibration period reciprocating rotary of regulation by expansion; And interior stake, it is fixed on balance staff by hairspring.Because the change of vibration period of escapement is relevant with the precision of clock and watch, so this change is set in predetermined setting very important.

Figure 23 be illustrate take the pivot angle that the longitudinal axis is escapement as rate (second/day), transverse axis (°) time the curve map of release catch error on the impact of rate.

As the main cause of the error of vibration period of escapement, known release catch error.Due to this release catch error, rate changes in mode corresponding to the pivot angle with escapement.Particularly, as shown in figure 23, because the torque of the clockwork spring of the power source as face side train reduces, the pivot angle of escapement reduces, and rate reduces thereupon.Known particularly when the pivot angle of escapement becomes below 200 °, rate obviously reduces.

Yet, in patent documentation 1, recorded the outer end of hairspring be supported to the stud that can slide and move to radial outside.And, in non-patent literature 1, recorded following technology: by the outer end of the hairspring that makes to configure, to radial outside, slide mobile, can make the rate characteristic variations with respect to escapement pivot angle under the state of the central axis of archimedes curve and the central axis bias of balance staff.

Figure 24 be illustrate take the pivot angle that the longitudinal axis is escapement as rate (second/day), transverse axis (°) time the bias of hairspring and the slip of the outer end curve map that moves the rate characteristic being produced.And, in Figure 24, solid line is illustrated in the rate characteristic in the situation that makes the eccentric configuration of the outside end direction in center of hairspring and the outer end of hairspring is fixed on to assigned position, single-point line is illustrated in and makes the eccentric rate characteristic that configures and slided from assigned position to radial outside mobile predetermined distance and fixing situation in the outer end of hairspring of the outside end direction in center of hairspring, double dot dash line is illustrated in and makes the eccentric rate characteristic that configures and slided from assigned position to radially inner side mobile predetermined distance and fixing situation in the outer end of hairspring of the outside end direction in the center of hairspring.

As shown in figure 24, by making outside end, the center bias of hairspring configure and make the outer end of hairspring slide mobile and fix to radial outside, can be adjusted at pivot angle and in about scope below 220 °, rate be increased.

Figure 25 be illustrate take the pivot angle that the longitudinal axis is escapement as rate (second/day), transverse axis (°) time the curve map of adjustment of rate.And, in Figure 25, solid line represents the rate characteristic after adjustment, single-point line is illustrated in and makes the eccentric rate characteristic that configure and slided from assigned position to radial outside mobile predetermined distance and fixing situation in the outer end of hairspring of the outside end direction in center of hairspring, and double dot dash line represents rate characteristic (the rate characteristic that is equivalent to Figure 23 before adjustment.）。

As shown in figure 25, by making, the outside end direction in the center of hairspring is eccentric configure and makes slide from assigned position to radial outside mobile predetermined distance and fixing of the outer end of hairspring, can in about scope below 220 °, rate be increased at pivot angle, therefore can suppress rate and reduce along with the reducing of pivot angle of escapement.Especially, in the impact due to release catch error, cause the obvious pivot angle that reduce, escapement of rate in the scope below 200 °, effectively having suppressed the rate that the impact of release catch error causes reduces, can obtain the stable rate characteristic that change is few in wide pivot angle scope (in Figure 25, from 150 ° to 300 °).

Like this, according to prior art, can think, by the outside end direction of the central axis with respect to balance staff is eccentric, configures hairspring and make the outer end of hairspring to radial outside, slide mobile and fixing, or configure hairspring and make the outer end of hairspring to radially inner side, slide mobile and fixing by the direction to contrary with outer end is eccentric, suppress the rate that the impact of release catch error causes and reduced, can obtain stable rate characteristic in the wide pivot angle scope of escapement.

Prior art document

Patent documentation

Patent documentation 1: No. 7648265 instructions of United States Patent (USP)

Non-patent literature

Non-patent literature 1: great Island health time youth, Time To つ い て such as " " テ ン プ Time Meter, nineteen fifty-seven, this Time of Meter Hui Chi (1), p.3-p.17

Yet, in the prior art, need to make the central axis of archimedes curve of hairspring and the central axis of balance staff eccentric, and need to make accordingly the mode of the outer end displacement of hairspring adjust rate with the direction with eccentric and offset.Yet the central axis of hairspring is imaginary axis, therefore, in order to measure eccentric direction and the offset of hairspring, need special-purpose sensing equipment, and the eccentric direction of hairspring and the assay method of offset and calculation method complexity.Therefore, as prior art in this wise, by the eccentric direction with hairspring and offset, make accordingly outer end be shifted to adjust rate and be very complicated, have room for improvement.

Summary of the invention

Therefore, problem of the present invention is to provide escapement, possess the clock machine core of this escapement and possess the clock and watch of this clock machine core, and described escapement can easily be adjusted rate and reduce release catch error, can obtain stable rate characteristic.

In order to solve above-mentioned problem, escapement of the present invention is characterised in that, described escapement possesses: balance staff, and it is configured to respect to support unit rotation freely, and the outer build-in of balance wheel is due to described balance staff; And hairspring, it forms along archimedes curve, inner end and described balance staff link, outer end and described support unit link, described escapement forms, when the inner peripheral surface of hairspring described in the axially-extending along described balance staff, at least a portion in described inner peripheral surface is intersected with the central axis of described balance staff.

According to the present invention, while forming the inner peripheral surface when the axially-extending hairspring along balance staff, at least a portion of inner peripheral surface is intersected with the central axis of balance staff, therefore at least a portion of hairspring can be configured to tilt with respect to the central axis of balance staff.Here, confirm: when at least a portion of the central axis tilted configuration hairspring with respect to balance staff, in the impact due to release catch error, cause the obviously scope of pivot angle that reduce, escapement of rate, can increase rate.Therefore,, by least a portion of the central axis tilted configuration hairspring with respect to balance staff, can suppress the rate that the impact of release catch error causes and reduce.And the central axis of hairspring is imaginary axis, therefore in the prior art, the eccentric direction of hairspring and the mensuration of offset difficulty.On the other hand, can easily measure the angle of inclination of hairspring, therefore can easily adjust the angle of inclination of hairspring.Therefore,, according to escapement of the present invention, can easily adjust rate to reduce release catch error, thereby can obtain stable rate characteristic.

In addition, escapement of the present invention is characterised in that, the described inner end of described hairspring is linked to described balance staff via outer build-in due to the interior stake of described balance staff, at least one party in the described inner end of described hairspring, described balance staff and described interior stake is provided with inner end tilted configuration structure, described inner end tilted configuration structure is configured to the described inner end of described hairspring, when described inner peripheral surface along hairspring described in described axially-extending, at least a portion in described inner peripheral surface is intersected with the described central axis of described balance staff.

According to the present invention, at least one party in inner end, balance staff and the interior stake of hairspring is provided with inner end tilted configuration structure, described inner end tilted configuration structure is configured to the inner end of hairspring, therefore at least a portion in the inner peripheral surface of hairspring is intersected with the central axis of balance staff, can be with respect to the central axis of balance staff at least a portion of tilted configuration hairspring reliably.Thus, can suppress the rate that the impact of release catch error causes reduces.And, because at least one party in the inner end at hairspring, balance staff and interior stake is provided with inner end tilted configuration structure, so be provided with the shape etc. of the parts of inner end tilted configuration structure by change, the angle of inclination of hairspring can easily be set as angle of inclination arbitrarily.

In addition, escapement of the present invention is characterised in that, described inner end tilted configuration structure is configured to the described inner end of described hairspring, in the described inner peripheral surface along hairspring described in described axially-extending be fixed on the inner stationary plane of described interior stake time, this inner stationary plane intersects with the described central axis of described balance staff.

According to the present invention, can be with respect to the central axis of balance staff, the inner stationary plane that is fixed on interior stake in the inner peripheral surface of tilted configuration hairspring.Here, confirm: by the inner stationary plane of the central axis tilted configuration hairspring with respect to balance staff, in the impact due to release catch error, cause the obviously scope of pivot angle that reduce, escapement of rate, can increase rate.Therefore,, by the inner stationary plane of the centre wheel tilted configuration hairspring with respect to balance staff, can suppress the rate that the impact of release catch error causes and reduce.

In addition, escapement of the present invention is characterised in that, the described outer end of described hairspring is linked to described support unit via the stud supporting member of stud and the described stud of supporting, at least one party in the described outer end of described hairspring, described stud and described stud supporting member is provided with outer end tilted configuration structure, described outer end tilted configuration structure is configured to the described outer end of described hairspring, when described inner peripheral surface along hairspring described in described axially-extending, at least a portion in described inner peripheral surface is intersected with the described central axis of described balance staff.

According to the present invention, at least one party in outer end, stud and the stud supporting member of hairspring is provided with outer end tilted configuration structure, outer end tilted configuration structure is configured to the outer end of hairspring, therefore at least a portion in the inner peripheral surface of hairspring is intersected with the described central axis of balance staff, can be with respect to the central axis of balance staff at least a portion of tilted configuration hairspring reliably.Thus, can suppress the rate that the impact of release catch error causes reduces.And, because at least one party in the outer end at hairspring, stud and stud supporting member is provided with outer end tilted configuration structure, so be provided with the shape etc. of the parts of outer end tilted configuration structure by change, the angle of inclination of hairspring can easily be set as angle of inclination arbitrarily.

In addition, escapement of the present invention is characterised in that, described outer end tilted configuration structure is formed by described stud, described stud is with respect to described stud supporting member, be arranged to centered by the axis radially of described hairspring, to rotate, and be arranged to centered by the tangent line of the described archimedes curve at the place, described outer end of described hairspring, to rotate, under the state of at least one party's rotation that makes described stud in the described tangent line of the described described axis radially of described hairspring and the described outer end of described hairspring, the outer end of described hairspring is supported in described stud.

According to the present invention, outer end tilted configuration structure is formed by stud, be arranged to centered by the axis radially of hairspring, to rotate, and being arranged to can be (following with the tangent line of the archimedes curve at the outer end place of hairspring, abbreviation " tangent line ") rotation centered by, therefore by stud is rotated around the tangent line of the axis radially of hairspring and the outer end of hairspring, can make the outer end of hairspring to direction inclination arbitrarily.Especially, when the inner end of tilted configuration hairspring, can with the angle of inclination of inner end accordingly, at random adjust angle of inclination and the vergence direction of the outer end of hairspring.And, under the state of at least one party's rotation that makes stud in the tangent line of the axis radially of hairspring and the outer end of hairspring, the outer end of hairspring is supported in stud, therefore, can be with respect to the inner peripheral surface of the outer end of being fixed on stud in the inner peripheral surface of the central axis tilted configuration hairspring of balance staff.

Here, confirm: when the outer end of the central axis tilted configuration hairspring with respect to balance staff, in the impact due to release catch error, cause the obviously scope of pivot angle that reduce, escapement of rate, can increase rate.Especially, at the inner end of the central axis tilted configuration hairspring with respect to balance staff, and during with respect to the outer end of the central axis tilted configuration hairspring of balance staff, can further increase rate.Therefore, by the inner end of the central axis tilted configuration hairspring with respect to balance staff, and with respect to the outer end of the central axis tilted configuration hairspring of balance staff, can effectively suppress the rate that the impact of release catch error causes and reduce.

In addition, clock machine core of the present invention is characterised in that, it is equipped with above-mentioned escapement.

In addition, clock and watch of the present invention are characterised in that, it possesses above-mentioned clock machine core.

According to the present invention, can obtain high-precision clock machine core and clock and watch that release catch error is little.

According to the present invention, while forming the inner peripheral surface when the axially-extending hairspring along balance staff, at least a portion of inner peripheral surface is intersected with the central axis of balance staff, therefore at least a portion of hairspring can be configured to tilt with respect to the central axis of balance staff.Here, confirm: when at least a portion of the central axis tilted configuration hairspring with respect to balance staff, in the impact due to release catch error, cause the obviously scope of pivot angle that reduce, escapement of rate, can increase rate.Therefore,, by least a portion of the central axis tilted configuration hairspring with respect to balance staff, can suppress the rate that the impact of release catch error causes and reduce.And the central axis of hairspring is imaginary axis, therefore in the prior art, the eccentric direction of hairspring and the mensuration of offset difficulty.On the other hand, can easily measure the angle of inclination of hairspring, therefore can easily adjust the angle of inclination of hairspring.Therefore,, according to escapement of the present invention, can easily adjust rate to reduce release catch error, thereby can obtain stable rate characteristic.

Accompanying drawing explanation

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

Fig. 2 is the planimetric map of observing from face side of movement.

Fig. 3 is the planimetric map of the escapement of the first embodiment.

Fig. 4 is the cut-open view along the A-A line of Fig. 3.

Fig. 5 is the enlarged drawing of the interior stake in Fig. 4.

Fig. 6 is the key diagram of stud and stud supporting member.

Fig. 7 illustrates rate with respect to the curve map of the variation of the pivot angle of escapement.

Fig. 8 illustrates rate with respect to the curve map of the variation of the pivot angle of escapement.

Fig. 9 is the key diagram of escapement of the first variation of the first embodiment.

Figure 10 is the key diagram of escapement of the second variation of the first embodiment.

Figure 11 is the key diagram of escapement of the 3rd variation of the first embodiment.

Figure 12 is the enlarged drawing of the inner end of hairspring.

Figure 13 is the key diagram of escapement of the 4th variation of the first embodiment.

Figure 14 is the key diagram of escapement of the 5th variation of the first embodiment.

Figure 15 is the key diagram of escapement of the 6th variation of the first embodiment.

Figure 16 is the enlarged drawing of interior of the 6th variation of the first embodiment.

Figure 17 is the key diagram of the escapement of the second embodiment.

Figure 18 is the key diagram of the escapement of the 3rd embodiment.

Figure 19 is the key diagram of the escapement of the 4th embodiment.

Figure 20 is the key diagram of the escapement of the 5th embodiment.

Figure 21 is the cut-open view along the B-B line of Figure 20.

Figure 22 is the key diagram of the escapement of the 6th embodiment.

Figure 23 illustrates the curve map of release catch error on the impact of rate.

Figure 24 illustrates the curve map that is moved produced rate characteristic by the bias of hairspring and the slip of outer end.

Figure 25 is the curve map that the adjustment of rate is shown.

Label declaration

1: clock and watch; 10,210,310,410,510,610: escapement; 20: balance wheel; 30: balance staff; 40: hairspring; 40a: inner peripheral surface; 43: inner end; 45: outer end; 50: interior stake; 60,260,360,460,560,660: stud; 70: stud supporting member; 80: inner end tilted configuration structure; 90: outer end tilted configuration structure; 100: movement (clock machine core); 104: balance cock (support unit); O: central axis; R: axis radially; T: the tangent line of outer end.

Embodiment

Below, use accompanying drawing to describe embodiments of the present invention.

Below, first to the mechanical type watch of embodiment (" clock and watch " that are equivalent to claim.) and be assemblied in movement (" clock machine core " that is equivalent to claim in this wrist-watch.) describe, then escapement is elaborated.

(clock and watch)

Generally, the mechanical body of the drive part that comprises clock and watch is called to " movement ".Dial plate, pointer are installed on to this movement and are placed on " finished product (complete) " that the state that has formed product in clock and watch housing is called clock and watch.To form the residing sides of glass in the both sides of base plate of substrate of clock and watch, clock and watch housing, be " dorsal part " that the residing side of dial plate is called movement.And, by the residing side of shells in the both sides of base plate, clock and watch housing back of the body lid, a side contrary with dial plate is called " face 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 in the clock and watch housing 3 that the shell back of the body covers and glass 2 forms by not shown: movement 100; Dial plate 11, described dial plate 11 has and represents about the scale of the information of time etc.; And pointer, described pointer comprises the hour hands 12 while representing, the minute hand 13 that expression divides and the second hand 14 that represents second.At dial plate 11, offer the date window 11a that makes to represent that the numeral on date is expressed out.Thus, clock and watch 1, except the moment, can also be confirmed the date.

Fig. 2 is the planimetric map of observing from face side of movement 100.And, in Fig. 2, for easily with the aid of pictures, omitted the diagram of the part in the timepiece that forms movement 100, and each timepiece has been simplified and illustrated.

As shown in Figure 2, the movement 100 of mechanical clock has the base plate 144 that forms substrate.In the arbor bullport 102 of base plate 144, in the mode that can rotate, be equipped with arbor 110.This arbor 110 is determined the position of the axis direction of arbor 110 by switching device shifter, described switching device shifter comprises and draws shelves 103, trip(ping) lever 105, trip(ping) lever spring 107 and bolt spring 109.

And, when making arbor 110 rotation, via the rotation of castle wheel (not shown), make vertical wheel 112 rotations.Due to the rotation of vertical wheel 112, small click wheel 114 and big click wheel 116 rotate successively, and the clockwork spring (not shown) that is accommodated in driving wheel on barrel 120 rolls tightly.

The outstanding pivot (not shown) arranging in two ends at the barrel axle as axial region of driving wheel on barrel 120 is respectively by base plate 144 and barrel support plate 134 pivot suspensions, so driving wheel on barrel 120 is supported to and can between base plate 144 and barrel support plate 134, rotates.The outstanding pivot (not shown) arranging in two ends at axial region separately of 126, No. four wheels 128 of 124, No. three wheels of No. two wheels and escape wheel 130 is respectively by base plate 144 and gear train support plate 136 pivot suspensions, and therefore 126, No. four wheels 128 of 124, No. three wheels of No. two wheels and escape wheel 130 are supported to and can between base plate 144 and gear train support plate 136, rotate.

When driving wheel on barrel 120 rotates by the recuperability of clockwork spring, due to the rotation of driving wheel on barrel 120,126, No. four wheels 128 of 124, No. three wheels of No. two wheels and escape wheel 130 rotate successively.These driving wheel on barrels 120, No. two 126 and No. four wheels of 124, No. three wheels of wheel 128 form face side trains.

When No. two wheel 124 rotations, based on its rotation, minute wheel (not shown) rotates simultaneously, thereby the minute hand 13(that is installed on this minute wheel is with reference to Fig. 1) demonstration " dividing ".And the rotation based on minute wheel, make hour wheel (not shown) rotation, thereby the hour hands 12(that is installed on this hour wheel is with reference to Fig. 1 via the rotation of back gear (not shown)) show " time ".

Escapement/the arrangements for speed regulation 140 of the rotation that is for control surface side wheel consist of escape wheel 130, escapement lever 142 and escapement 10.

Periphery at escape wheel 130 is formed with tooth 132.Escapement lever 142 is bearing between base plate 144 and escapement lever clamping plate 138 in the mode that can rotate, and possesses a pair of pallet stone 142a, 142b.Under the state that a pallet stone 142a of escapement lever 142 engages at the tooth 132 with escape wheel 130, escape wheel 130 is temporarily stopped.

Escapement 10 is bearing in the mode that can rotate " support unit " that balance cock 104(is equivalent to claim.) and base plate 144 between, and by the cycle reciprocating rotary to fix, make 142 1 pallet stone 142a of escapement lever and another pallet stone 142b alternately engage and remove with the tooth 132 of escape wheel 130.Thus, make the speed escapement of escape wheel 130 to fix.In addition, after, escapement 10 is elaborated.

On the basis of such structure, utilize arbor 110 to roll tightly and be accommodated in after the not shown clockwork spring of driving wheel on barrel 120, the revolving force while utilizing this clockwork spring unwinding, driving wheel on barrel 120 rotations.By driving wheel on barrel 120, rotate, make No. two wheels 124 rotations that are engaged with.When No. two wheel 124 rotations, No. three wheels 126 rotations that are engaged with.When No. three wheel 126 rotations, No. four wheels 128 rotations that are engaged with.When No. four wheel 128 rotations, escapement/arrangements for speed regulation 140 drive.By escapement/arrangements for speed regulation 140, drive, No. four wheels 128 are controlled so as to per minute and turn around, and No. two wheels 124 are controlled so as to per hour turning around.

(the first embodiment)

Next, the escapement 10 of the first embodiment is elaborated.

Fig. 3 is the planimetric map of the escapement 10 of the first embodiment, illustrates movement 100(with reference to Fig. 2) from face side, observe time state.In addition, in Fig. 3, with double dot dash line, illustrate aftermentioned stud 60 and stud supporting member 70.

Fig. 4 is the cut-open view along the A-A line of Fig. 3.In addition, in Fig. 4, across the paper upside of base plate 144, be that movement 100(is with reference to Fig. 2) face side, across the paper downside of base plate 144, are dorsal parts of movement 100.And, with double dot dash line, illustrate balance cock 104, base plate 144 and stud supporting member 70.

As shown in Figure 3, escapement 10 mainly possesses: balance wheel 20, balance staff 30, hairspring 40, interior stake 50, stud 60 and stud supporting member 70.Below, to forming each parts of escapement 10, describe.In addition, below, the rotation center during by escapement 10 reciprocating rotary is made as central axis O, and the direction along central axis O is called axially, and the direction perpendicular to central axis O is called radially, and the direction rotating around central axis O is called circumferentially.In addition, after Fig. 4, centered by hairspring 40 center (center of archimedes curve), axis C illustrates.

Balance wheel 20 forms roughly circular annulus 21 and forms from four arms 23 that the inner peripheral surface of annulus 21 radially extends setting towards central axis O by utilizing such as metal materials such as brass.

The annulus 21 of balance wheel 20 is configured to central axis O coaxial.

Four arms 23 roughly equally spaced form in the mode along circumferential shape interval in 90 ° respectively.As shown in Figure 4, the linking part 25 at four arms 23 is formed with the embedded hole 25a coaxial with central axis O.The embedded hole 25a of linking part 25 is for example pressed into the balance wheel fixed part 31 of balance staff 30 by outer embedding.Thus, the outer build-in of balance wheel 20 schedules balance staff 30, and can rotate together with balance staff 30.

Balance staff 30 is by the bar-shaped spindle unit forming such as metal materials such as brass, and the central axis of balance staff 30 is that central axis O is consistent with the rotation center of escapement 10.

Balance staff 30 possesses balance wheel fixed part 31 and is formed on the interior stake fixed part 32 by balance cock 104 sides (upside in Fig. 4) than balance wheel fixed part 31.Balance wheel fixed part 31 and interior stake fixed part 32 form respectively coaxial cylindric with central axis O.

And balance staff 30 possesses and forms the pivot 33 that end attenuates at axial two ends.A pivot 33a of balance staff 30 via not shown bearing pivot suspension in balance cock 104, another pivot 33b via not shown bearing pivot suspension in base plate 144, thereby balance staff 30 can rotate around central axis O.

Balance staff 30 possesses the disk 35 of tubular in the axial direction by the position of base plate 144 sides (downside in Fig. 4) than balance wheel 20.At disk 35, be formed with the flange part 36 extending radially.At the radial outside of flange part 36, in the position of regulation, be provided with not shown striker pin.The prong inner peripheral surface that the mode of striker pin by the reciprocating rotary cycle synchronisation with escapement 10 collided escapement lever 142 with the cycle of fixing makes escapement lever 142 to-and-fro movements, thereby alternately lifts the pallet stone 142 of escapement lever 142 and another pallet stone 142b(all with reference to Fig. 2).Thus, as shown in Figure 2, a pallet stone 142a of escapement lever 142 alternately engages and engagement release with respect to the tooth 132 of escape wheel 130 with another pallet stone 142b.

As shown in Figure 4, escapement 10 is leaning on the position of balance cock 104 sides (upside in Fig. 4) to possess hairspring 40 than balance wheel 20.As shown in Figure 3, hairspring 40 is thin plate springs of being made by metal materials such as iron or nickel, by possessing the hairspring main part 41 of scroll of multi-turn and the arc sections 42 of the outer circumferential side of hairspring main part 41 forms.The scrollwork shape of the hairspring main part 41 of hairspring 40 forms along so-called archimedes curve.Thus, when from end on observation hairspring 40, be configured to diametrically adjacent hairspring main part 41 and form roughly uniformly-spaced each other.The inner end 43(of hairspring main part 41 is the inner end 43 of hairspring 40) the part of inner peripheral surface form by being for example fixedly welded on the inner stationary plane 43a of interior stake 50.By the inner stationary plane 43a of hairspring 40 being welded to interior stake 50, the inner end 43 of hairspring 40 links with balance staff 30 via interior stake 50.

Arc sections 42, at the outer circumferential side of hairspring main part 41, forms and has the radius-of-curvature larger than hairspring main part 41.The outer end 45(of arc sections 42 is the outer end 45 of hairspring 40) be fixed on stud 60 described later.

Fig. 5 is the enlarged drawing of the interior stake 50 in Fig. 4.

As shown in Figure 5, interior stake 50 is parts of the ring-type that formed by metal materials such as nickel or nickel alloy, by cylinder portion 51 with for the fixing support 53 of the inner end 43 of hairspring 40, forms.

The internal diameter of the through hole 51a of cylinder portion 51 forms less than the external diameter of the interior stake fixed part 32 of balance staff 30, to can outer embedding be pressed into balance staff 30.

Support 53, in the end of balance cock 104 sides (with reference to Fig. 4, upside in Fig. 5) of cylinder portion 51, forms to radial outside is outstanding.The lateral surface of support 53 forms by the fixing stationary planes 55 of the inner stationary plane 43a of hairspring 40 such as welding.

The central axis of the through hole 51a of interior stake 50 is in the cross section that comprises its central axis and intersect with stationary plane 55 cross section of the A-A line of Fig. 3 (along), with respect to stationary plane 55 tilt angle theta 1 of support 53.Therefore, under the central axis of through hole 51a that makes interior stake 50 state consistent with central axis O, the through hole 51a of interior stake 50 is enclosed within on balance staff 30, when interior stake 50 outer build-ins are scheduled to balance staff 30, the central axis C of the archimedes curve of hairspring 40 is with respect to central axis O tilt angle theta 1, and the inner stationary plane 43a of hairspring 40 is with respect to central axis O tilt angle theta 1, and under this state, hairspring 40 is fixed in balance staff 30.

Thus, interior stake 50 can with when extending vertically the inner peripheral surface 40a of hairspring 40 (in Fig. 5, situation while illustrating the inner stationary plane 43a in the inner peripheral surface 40a that extends vertically hairspring 40), with respect to the mode of central axis O intersecting angle θ 1, the inner end 43 of tilted configuration hairspring 40.Like this, by forming the through hole 51a with respect to stationary plane 55 tilt angle theta 1 of support 53, the inner end tilted configuration structure 80 of inner end 43 that can tilted configuration hairspring 40 is located at interior stake 50.In addition, the effect after during to the inner end 43 of tilted configuration hairspring 40 describes.

Fig. 6 is the key diagram of stud 60 and stud supporting member 70.In addition, in Fig. 6, for easy understanding, in the structure member of escapement 10, only illustrate hairspring 40, stud 60 and stud supporting member 70.And the tangent line with respect to archimedes curve of establishing 45 places, outer end of hairspring 40 is below T(, to be called " tangent line T ".) illustrate, establishing the axis radially vertical with tangent line T is that R illustrates.

As shown in Figure 6, the outer end 45 of hairspring 40 via the stud supporting member 70 of stud 60 and this stud 60 of supporting with escapement 104(with reference to Fig. 4) link.

Stud 60 consists of maintaining part 61, stud main part 63 and fixed-use bolt 65.

Maintaining part 61 forms cylindric, in inner side such as by the fixing outer end 45 of hairspring 40 such as bonding agent.

Stud main part 63 forms rectangular-shaped.At stud main part 63, be formed with the through hole 63a that can insert for maintaining part 61.The central axis of through hole 63a arranges along the tangent line 45 of the outer end 45 of hairspring 40.In the through hole 63a of stud main part 63, dispose the outer end 45 of maintaining part 61 and hairspring 40.Now, maintaining part 61 is installed into and can in through hole 63a, around tangent line T, rotates with respect to stud main part 63.

And, at stud main part 63, from radial outside screw thread, fixed-use bolt 65 is installed.By being screwed into fixed-use bolt 65, the end of fixed-use bolt 65 is configured to the outer peripheral face butt with maintaining part 61.Thus, can, making maintaining part 61 fixing maintaining part 61 under the state of tangent line T rotation predetermined angular, therefore can make the outer end 45 of hairspring 40 tilt around tangent line T.

Stud supporting member 70 consists of installation portion 71, stud main part 73, connecting portion 75 and fixed-use bolt 77.

Installation portion 71 forms C word shape, and is configured to central axis O coaxial.Installation portion 71 is fixed on escapement 104(with reference to Fig. 4 by being pressed into such as bonding agent etc. or outer embedding etc.).

Stud support 73, in position corresponding to outer end 45 with hairspring 40, stretches out formation towards hairspring 40 sides vertically.Stud support 73 links with installation portion 71 via connecting portion 75.

The radial outer side of stud support 73 becomes the installed surface 73a that stud 60 is installed.The installed surface 73a of pile bearing portion 73 is provided with the stud main part 63 of stud 60 by not shown spindle unit outside.Thus, stud 60 can rotate around axis R radially with respect to stud supporting member 70.

And, stud main part 73 towards circumferential side, screw thread is provided with fixed-use bolt 77.By being screwed into fixed-use bolt 77, the end of fixed-use bolt 77 is configured to support with axle the outer peripheral face butt of the not shown spindle unit of stud 60.Thus, stud 60 fixing stud 60 under the state of axis R rotation predetermined angular radially can be made, so the outer end 45 that can make hairspring 40 tilts around axis R radially.

As mentioned above, stud 60, with respect to stud supporting member 70, is arranged to centered by the axis R radially of hairspring 40, to rotate, and is arranged to centered by the tangent line T of the outer end 45 of hairspring 40, to rotate.Thus, stud 60 can be with when extending the inner peripheral surface 40a of hairspring 40 and central axis O interleaved mode vertically, the outer end 45 of tilted configuration hairspring 40.Like this, in the present embodiment, the outer end tilted configuration structure 90 of outer end 45 that can tilted configuration hairspring 40 is set at stud 60 and stud supporting member 70.In addition, the effect after during to the outer end 45 of tilted configuration hairspring 40 describes.

(effect)

Effect during next, to the inner end 43 at above-mentioned escapement 10 medium dip configuration hairsprings 40 and outer end 45 describes.In addition, for the label of each parts in following explanation, referring to figs. 1 through Fig. 6.

First so that the mode of inner end 43 tilt angle theta 1 of hairspring 40 is configured (with reference to Fig. 5), and by emulation when changing the value of various angle θ 1, rate (second/day) with respect to the pivot angle of escapement 10 (°) variation study.Now, as shown in Figure 4, the central axis C of the archimedes curve of hairspring 40 is configured to respect to central axis O tilt angle theta 1.Thus, in the cross section of the central axis C that comprises central axis O and archimedes curve, a plurality of inner peripheral surface 40a of hairspring 40 are configured to, and are all parallel to the central axis C of archimedes curve, and with respect to central axis O tilt angle theta 1.

Fig. 7 be illustrate take the pivot angle that the longitudinal axis is escapement 10 as rate (second/day), transverse axis (°), rate when each value that the inner end of hairspring 40 43 is altered to x1, x2, x3, x4 with respect to the angle θ 1 of central axis O is carried out the inner end 43 of tilted configuration hairspring 40 is with respect to the curve map of the variation of escapement 10 pivot angles.At this, as x1, x2, each value of x3, x4 of the angle θ 1 of the inner end 43 of hairspring 40, be set as becoming successively large.

As shown in Figure 7, confirm: at the pivot angle of escapement 10, in about scope below 250 °, along with the angle θ 1 of the inner end 43 of hairspring 40 becomes large, rate increases.And, confirm: along with the angle θ 1 of the inner end 43 of hairspring 40 becomes large, the increment rate that is accompanied by the rate that the pivot angle of escapement 10 reduces increases.

Next, so that the mode of inner end 43 tilt angle theta 1 of hairspring 40 is configured, and in the identical direction of the vergence direction of the inner end 43 with hairspring 40, on the basis of angle θ 1, make again outer end 45 tilt angle theta 2 of hairspring 40, the rate by emulation when changing the value of various angle θ 2 (second/day) with respect to the pivot angle of escapement 10 (°) variation study.Now, the central axis C of the archimedes curve of hairspring 40 is configured to respect to central axis O tilt angle theta 1.And in the cross section of the central axis C that comprises central axis O and archimedes curve, a plurality of inner peripheral surface 40a of hairspring 40 are configured to respect to the inclined at inclination angles of central axis O, along with the inner side from radially toward the outer side, move closer to angle θ 2.That is, the inner end 43 of hairspring 40 and outer end 45 are all configured to tilt with respect to central axis O.

Fig. 8 be illustrate take the pivot angle that the longitudinal axis is escapement 10 as rate (second/day), transverse axis (°), the inner end of hairspring 40 43 is fixed as to for example x3 with respect to the angle θ 1 of central axis O, and when the outer end of hairspring 40 45 is altered to being respectively worth of y1, y2, y3, y4 with respect to the angle θ 2 of central axis O, rate is with respect to the curve map of the variation of escapement 10 pivot angles.At this, as y1, y2, each value of y3, y4 of the angle θ 2 of the outer end 45 of hairspring 40, be set as becoming successively large.

As shown in Figure 8, confirm: at the pivot angle of escapement 10, in about scope below 220 °, along with the angle θ 2 of the outer end 45 of hairspring 40 becomes large, rate increases.And, confirm: along with the angle θ 2 of the outer end 45 of hairspring 40 becomes large, be accompanied by the rate increment rate that the pivot angle of escapement 10 reduces and increase.

Here, as shown in figure 23, release catch error is low the causing of torque by the clockwork spring of the power source as face side train, and along with the pivot angle reduction of escapement 10, rate reduces.Known particularly when the pivot angle of escapement 10 becomes below 200 °, rate obviously reduces.

On the other hand, as shown in Figure 7, by so that the mode of inner end 43 tilt angle theta 1 of hairspring 40 configure, and increase the angle θ 1 of the inner end 43 of hairspring 40, can in about scope below 250 °, rate be increased at pivot angle, and the increment rate that can make to be accompanied by the rate that the pivot angle of escapement 10 reduces increase.And, as shown in Figure 8, by the inner end 43 at tilted configuration hairspring 40, and under the state that is configured of outer end 45 tilt angle theta 2 that further make hairspring 40 on the basis of angle θ 1, increase the angle θ 2 of the outer end 45 of hairspring 40, can in the scope below 220 °, rate be increased at pivot angle, and the increment rate that can make to be accompanied by the rate that the pivot angle of escapement 10 reduces increase.Therefore, the impact due to release catch error cause rate obviously pivot angle that reduce, escapement in the scope 200 ° below (with reference to Figure 23), can effectively suppress the rate reduction that the impact of release catch error causes.

According to present embodiment, while forming the inner peripheral surface 40a when the axially-extending hairspring 40 along balance staff 30, intersect with the central axis O of balance staff 30, therefore hairspring 40 can be configured to tilt with respect to the central axis O of balance staff 30.Here, confirm: when central axis O tilted configuration hairspring 30 with respect to balance staff 30, the obviously scope of pivot angle that reduce, escapement 10 (in Figure 23, the pivot angle of escapement is in the scope of 200 °) of rate that affects due to release catch error, can increase rate (with reference to the curve map of Fig. 7 and the curve map of Fig. 8).Therefore,, by the central axis O tilted configuration hairspring 40 with respect to balance staff 30, can suppress the rate that the impact of release catch error causes and reduce.And the central axis C of hairspring 40 is imaginary axis, therefore in the prior art, the eccentric direction of hairspring 40 and the mensuration of offset difficulty.On the other hand, can easily measure the angle of inclination of hairspring 40, therefore can easily adjust the angle of inclination of hairspring 40.Therefore,, according to the escapement 10 of present embodiment, can easily adjust rate and reduce release catch error, thereby can obtain stable rate characteristic.

And, owing in interior stake 50, inner end tilted configuration structure 80 being set, this inner end tilted configuration structure 80 is so that the mode that the inner peripheral surface 40a of hairspring 40 and the central axis O of balance staff 30 intersect configures the inner end 43 of hairspring 40, so can be with respect to the central axis O of balance staff 30 tilted configuration hairspring 40 reliably.Thus, can suppress the rate that the impact of release catch error causes reduces.And owing in interior stake 50, inner end tilted configuration structure 80 being set, so the shape by stake 50 in changing etc., the angle of inclination of hairspring 40 can easily be set as angle of inclination arbitrarily.

And, with respect to the inner stationary plane 43a that is fixed on interior stake 50 in the inner peripheral surface 40a of the central axis O tilted configuration hairspring 40 of balance staff 30.Therefore, can suppress the rate that the impact of release catch error causes reduces.

And, owing at stud 60 and stud supporting member 70, outer end tilted configuration structure 90 being set, this outer end tilted configuration structure 90 is so that the mode that the inner peripheral surface 40a of hairspring 40 and the central axis O of balance staff 30 intersect configures the outer end 45 of hairspring 40, so can be with respect to the central axis O of balance staff 30 tilted configuration hairspring 40 reliably.Thus, can suppress the rate that the impact of release catch error causes reduces.And, owing at stud 60 and stud supporting member 70, outer end tilted configuration structure 90 being set, so by changing the shape etc. of stud 60 and stud supporting member 70, the angle of inclination of hairspring 40 can easily be set as angle of inclination arbitrarily.

And, outer end tilted configuration structure 90 is formed by stud 60 and stud supporting member 70, be arranged to centered by the axis R radially of hairspring 40, to rotate, and be arranged to centered by the tangent line T of the outer end 45 of hairspring 40, to rotate, therefore, by stud 60 is rotated around the tangent line T of the axis R radially of hairspring 40 and the outer end 45 of hairspring 40, can make the outer end 45 of hairspring 40 to direction inclination arbitrarily.Especially, when the inner end 43 of tilted configuration hairspring 40, can with the angle of inclination of inner end 43 accordingly, at random adjust angle of inclination and the vergence direction of the outer end 45 of hairspring 40.And, the outer end 45 of hairspring 40 makes the state lower support of stud 60 at least one rotation in the tangent line T of the axis R radially of hairspring 40 and the outer end 45 of hairspring 40 in stud 60, therefore, can be with respect to the inner peripheral surface of the outer end of being fixed on stud 60 45 in the inner peripheral surface 40a of the central axis tilted configuration hairspring 40 of balance staff 30.

Therefore, by the inner end 43 of the central axis O tilted configuration hairspring 40 with respect to balance staff 30, and with respect to the outer end 45 of the central axis O tilted configuration hairspring 40 of balance staff 30, can effectively suppress the rate that the impact of release catch error causes and reduce.

And, according to the present invention, by assembling above-mentioned escapement 10, can obtain the high precision movement 100 that release catch error is little and the clock and watch 1 that possess this movement 100.

(each variation of the first embodiment)

Next, the escapement 10 of each variation of the first embodiment is described.In each variation of the first following embodiment, internally each form of sloped-end configuration structure 80 describes.

In the escapement 10 of the first embodiment, by inner end tilted configuration structure 80 being set in interior stake 50, and the through hole 51a of stationary plane 55 tilt angle theta 1 of the support 53 of formation with respect to interior 50, the next inner end 43(with respect to central axis O tilted configuration hairspring 40 is with reference to Fig. 5).

On the other hand, inner inclination configuration structure 80 is not limited to the first embodiment.; as long as inner end tilted configuration structure 80 is located at least one party in the inner end 43, balance staff 30 of hairspring 40 and interior stake 50; also can utilize the inner end tilted configuration structure 80 of escapement 10 of each variation of following explanation, with respect to the inner end 43 of central axis O tilted configuration hairspring 40.In addition, below, for the structure division identical with the first embodiment, description thereof is omitted, only different parts described.

(the first variation of the first embodiment)

Fig. 9 is the key diagram of escapement 10 of the first variation of the first embodiment, is the enlarged drawing of inner end tilted configuration structure 80.

As shown in Figure 9, in interior stake 50, be formed with the through hole 51a of the interior stake fixed part 32 that can be embedded in balance staff 30 outward.And the lateral surface of the support 53 of interior stake 50 forms by the fixing stationary plane 55 of the inner stationary plane 43a of hairspring 40 such as welding.The stationary plane 55 of interior stake 50 is in comprising the central axis of through hole 51a of interior stake 50 and the cross section that intersects with stationary plane 55 (being equivalent to along the cross section in the cross section of the A-A line of Fig. 3), with respect to the central axis tilt angle theta 1 of the through hole 51a of support 50.Therefore, under the central axis of through hole 51a that makes interior stake 50 state consistent with central axis O, the through hole 51a of interior stake 50 is enclosed within on balance staff 30, when interior stake 50 outer build-ins are scheduled to balance staff 30, the central axis C of the archimedes curve of hairspring 40 is with respect to central axis O tilt angle theta 1, and the inner stationary plane 43a of hairspring 40 is with respect to central axis O tilt angle theta 1, and under this state, hairspring 40 is fixed in balance staff 30.Like this, by forming the stationary plane 55 with respect to central axis O tilt angle theta 1, thereby be provided with inner end tilted configuration structure 80 at balance staff 30.

(the second variation of the first embodiment)

Figure 10 is the key diagram of escapement 10 of the second variation of the first embodiment, is the enlarged drawing of inner end tilted configuration structure 80.

As shown in figure 10, balance staff 30 possesses balance wheel fixed part 31 and forms the interior stake fixed part 32 by balance cock 104 sides (with reference to Fig. 4, upside in Figure 10) than balance wheel fixed part 31.Balance wheel fixed part 31 forms with central axis O coaxial.

Interior stake fixed part 32 forms its central axis with respect to central axis O tilt angle theta 1.Therefore, make under the consistent state of the central axis of through hole 51a of interior stake 50 and the central axis of the interior stake fixed part 32 of balance staff 30, when interior stake 50 outer build-ins are scheduled to balance staff 30, interior stake 50 is fixed under the state with respect to central axis O tilt angle theta 1.Therefore, in the central axis C of the archimedes curve of hairspring 40, with respect to central axis O tilt angle theta 1, and under the state of the inner stationary plane 43a of hairspring 40 with respect to central axis O tilt angle theta 1, hairspring 40 is fixed in balance staff 30.Like this, by forming the interior stake fixed part 32 with respect to central axis O tilt angle theta 1, at balance staff 30, be provided with inner end tilted configuration structure 80.

(the 3rd variation of the first embodiment)

Figure 11 is the key diagram of escapement 10 of the 3rd variation of the first embodiment, is the enlarged drawing of inner end tilted configuration structure 80.Figure 12 is the enlarged drawing of the inner end 43 of hairspring 40.

As shown in Figure 11 and Figure 12, the inner stationary plane 43a of hairspring 40 is arranged in the inner end 43 of hairspring 40 with respect to the inner peripheral surface 40a inclination of hairspring 40.Particularly, inner stationary plane 43a forms the dip plane that tilts to radially inner side gradually towards base plate 144 sides (downside in reference to Fig. 4, Figure 11 and Figure 12) from balance cock 104 sides (with reference to upside Fig. 4, Figure 11 and Figure 12).Inner stationary plane 43a is set as θ 1 with respect to the angle of inclination of inner peripheral surface 40a.Thus, when inner stationary plane 43a being welded to the stationary plane 55 of interior stake 50, the inner end 43 of hairspring 40 is fixed with the state of the central axis tilt angle theta 1 with respect to interior stake 50.Therefore, when interior stake 50 outer build-ins are scheduled to balance staff 30, in the central axis C of the archimedes curve of hairspring 40, with respect to the inner peripheral surface 40a of central axis O tilt angle theta 1 and hairspring 40 under the state with respect to central axis O tilt angle theta 1, hairspring 40 is fixed in balance staff 30.Like this, the inner stationary plane 43a tilting by formation, is provided with inner end tilted configuration structure 80 at the inner end 43 of hairspring 40.

(the 4th variation of the first embodiment)

Figure 13 is the key diagram of escapement 10 of the 4th variation of the first embodiment, is the enlarged drawing of inner end tilted configuration structure 80.In addition, in Figure 13, only illustrate interior stake 50 and hairspring 40.

As shown in figure 13, the inner end 43 of hairspring 40, in the part adjacent with inner stationary plane 43a, forms around archimedes curve windup-degree θ 1.Thus, the central axis C of the archimedes curve of hairspring 40 is configured to the state with respect to central axis O tilt angle theta 1.And, in the cross section of the central axis C that comprises central axis O and archimedes curve, inner peripheral surface 40a beyond the inner stationary plane 43a of hairspring 40 is configured to, and is all parallel to the central axis C of archimedes curve, and with respect to central axis O tilt angle theta 1.Like this, by torsion, form the inner end 43 of hairspring 40, at the inner end 43 of hairspring 40, be provided with inner end tilted configuration structure 80.

(the 5th variation of the first embodiment)

Figure 14 is the key diagram of escapement 10 of the 5th variation of the first embodiment, is the enlarged drawing of inner end tilted configuration structure 80.In addition, in Figure 14, only illustrate interior stake 50 and hairspring 40.

As shown in figure 14, at the support 53 of interior stake 50, at center section radially, be formed with thinner wall section 54.By making thinner wall section 54 plastic yield, the stationary plane 55 of interior stake 50 can tilt to any direction.Thus, the inner stationary plane 43a of hairspring 40 is being fixed under the state that direction tilts arbitrarily with respect to central axis O.Like this, by the support 53 in interior stake 50, form thinner wall section 54, at the inner end 53 of hairspring 50, be provided with inner end tilted configuration structure 80.

(the 6th variation of the first embodiment)

Figure 15 is the key diagram of escapement 10 of the 6th variation of the first embodiment, is the three-dimensional cutaway view of inner end tilted configuration structure 80.Figure 16 is the enlarged drawing of interior 50 of the 6th variation of the first embodiment.

As shown in figure 15, the outer peripheral face of the interior stake fixed part 32 of balance staff 30 forms protruding dome shape.And the inner peripheral surface of the through hole 51a of interior stake 50 forms the concave spherical surface shape corresponding with the profile of interior stake fixed part 32.

As shown in figure 16, at cylinder portion 51 and the support 53 of interior stake 50, while being formed with from end on observation along radial slot gap 56.By groove gap 56 is set, interior stake 50 forms C word shape, and cylinder portion 51 can elastic deformation and hole enlargement.

As shown in figure 15, when interior stake 50 is inserted into interior stake fixed part 32, interior stake 50 utilizes the elastic force of cylinder portion 51 tightly to strangle interior stake fixed part 32, is held in thus interior stake fixed part 32.Now, the inner peripheral surface of the through hole 51a of interior 50 forms respectively the also mutual face of dome shape with interior stake fixed part 32 and contacts, and therefore interior stake 50 can be around the middle mind-set direction inclination arbitrarily of sphere.Thus, the inner stationary plane 43a of hairspring 40 is being fixed under the state that direction tilts arbitrarily with respect to central axis O.Like this, by the outer peripheral face of the interior stake fixed part 32 of balance staff 30 is formed to protruding dome shape, and the inner peripheral surface of the through hole 51a of interior stake 50 is formed to concave spherical surface shape, thereby be provided with inner end tilted configuration structure 80 in interior stake 50 and balance staff 30.

(each embodiment)

Next, the escapement 10 of each embodiment is described.In each following embodiment, externally each form of sloped-end configuration structure 90 describes.

In the escapement 10 of the first embodiment, at stud 60 and stud supporting member 70, be provided with outer end tilted configuration structure 90, stud 60 is with respect to stud supporting member 70, be arranged to centered by the axis R radially of hairspring 40, to rotate, and be arranged to centered by the tangent line T of the outer end 45 of hairspring 40, to rotate.

To this, outer inclination configuration structure 90 is not limited to the first embodiment.; as long as outer end tilted configuration structure 90 is located at least one party in outer end 45, stud 60 and the stud supporting member 70 of hairspring 40; also can utilize the outer end tilted configuration structure 90 of escapement 10 of each variation of following explanation, with respect to the outer end 45 of central axis O tilted configuration hairspring 40.In addition, below, for the structure division identical with the first embodiment, description thereof is omitted, only different parts described.

(the second embodiment)

Figure 17 is the key diagram of the escapement 210 of the second embodiment, is the key diagram of outer end tilted configuration structure 90.In addition, in Figure 17, for easy understanding, with double dot dash line, illustrate the stud main part 263 of stud 260.

As shown in figure 17, at stud main part 263, from radial outside screw thread, fixed-use bolt 265 is installed.The threaded portion of fixed-use bolt 265 forms the 265a of worm screw portion that spiral shell carves in the shape of a spiral.

And, at the outer peripheral face of the maintaining part 261 of stud 260, in position corresponding to the 265a of worm screw portion with fixed-use bolt 265, be provided with can with the 261a of worm gear portion of the 265a of worm screw portion engagement.

Under the state being meshed at the 265a of worm screw portion of fixed-use bolt 265 and the 261a of worm gear portion of maintaining part 261, by making fixed-use bolt 265 rotations, maintaining part 261, with respect to stud main part 263, is rotated around tangent line T in through hole 263a.Thus, maintaining part 261 can be fixed under the state around tangent line T rotation predetermined angular, therefore can make the outer end 45 of hairspring 40 tilt around tangent line T.Like this, by forming the 265a of worm screw portion at fixed-use bolt 265, and form the 261a of worm gear portion at the outer peripheral face of maintaining part 261, thereby be provided with outer end tilted configuration structure 90 at stud 260.Especially, the outer end tilted configuration structure 90 of present embodiment is can be according to the anglec of rotation of the 265a of worm screw portion, effective in the anglec of rotation (being the angle of inclination of the outer end 45 of the hairspring 40) this point of fine setting maintaining part 261.

(the 3rd embodiment)

Figure 18 is the key diagram of the escapement 310 of the 3rd embodiment, is the key diagram of outer end tilted configuration structure 90.

As shown in figure 18, the maintaining part 361 of stud 360 forms spherical.In maintaining part 361, be formed with and run through patchhole 366, for the outer end 45 of hairspring 40, run through and insert and can be fixed.From maintaining part 361 to balance cock 104 sides, (with reference to Fig. 4, upside in Figure 18) erects vertically and is provided with bar-shaped operating portion 367.

The installed surface 373a of pile bearing portion 373, is formed with concave spherical surface portion accordingly with the sphere of maintaining part 361 outside.

And the radial outside of pile bearing portion 373, is provided with rectangular-shaped supporting slice 374 in the opposed mode of installed surface 373a with stud support 373 outside.Supporting slice 374 become installed surface 374a with the opposed face of installed surface 373a stud support 373.At the installed surface 374a of supporting slice 374, with the installed surface 373a of stud support 373 similarly, be formed with accordingly concave spherical surface portion with the sphere of maintaining part 361.Supporting slice 374 can be installed on stud support 373 from radial outside by a plurality of fixed-use bolts 365.

The maintaining part 361 of stud 360 is clamped into and can rotate with supporting slice 374 by stud support 373.Now, maintaining part 361 is clamped by the concave spherical surface portion of stud support 373 and the concave spherical surface portion of supporting slice 374, so maintaining part 361 can be around the middle mind-set direction rotation arbitrarily of sphere.And, move operation portion 367, thereby the maintaining part 361 that makes stud 360 is rotated, the outer end 45 of hairspring 40 tilts arbitrarily after angle, and by fastening a plurality of fixed-use bolts 365, the outer end 45 of hairspring 40 is fixed on respect to central axis O to direction tilts arbitrarily state.Like this, by the maintaining part of stud 360 361 is formed to dome shape, and the installed surface 373a of pile bearing portion 373 and the installed surface 374a of supporting slice 374 form concave spherical surface portion outside, thereby are provided with outer end tilted configuration structure 90 at stud 360 and stud supporting member 70.

(the 4th embodiment)

Figure 19 is the key diagram of the escapement 410 of the 4th embodiment, is the key diagram of outer end tilted configuration structure 90.

As shown in figure 19, the maintaining part 461 of stud 460 forms spherical.In maintaining part 461, be formed with and run through patchhole 466, for the outer end 45 of hairspring 40, run through and insert and can be fixed.

The installed surface 473a of stud support 473 is configured in the face of base plate 144 sides are (with reference to Fig. 4.Downside in Figure 19), and with the sphere of maintaining part 461 be formed with accordingly concave spherical surface portion.

And base plate 144 sides of pile bearing portion 473 are (with reference to Fig. 4 outside.Downside in Figure 19), in the opposed mode of installed surface 473a with stud support 473, be provided with rectangular-shaped supporting slice 474.Supporting slice 474 become installed surface 474a with the opposed face of installed surface 473a stud support 473.At the installed surface 474a of supporting slice 474, with the installed surface 473a of stud support 473 similarly, be formed with accordingly concave spherical surface portion with the sphere of maintaining part 461.Supporting slice 474 can be by a plurality of fixed-use bolts 465 from base plate 144 sides (with reference to Fig. 4.Downside in Figure 19) be installed on stud support 473.

The maintaining part 461 of stud 460 is clamped into and can rotate with supporting slice 474 by stud support 473.Now, maintaining part 461 is clamped by the concave spherical surface portion of stud support 473 and the concave spherical surface portion of supporting slice 474, so maintaining part can be around the middle mind-set direction rotation arbitrarily of sphere.And, in the maintaining part 461 that makes stud 460, rotate so that the outer end 45 of hairspring 40 tilts arbitrarily after angle, by fastening a plurality of fixed-use bolts 465, the outer end 45 of hairspring 40 is being fixed under the state that direction tilts arbitrarily with respect to central axis O.Like this, by the maintaining part of stud 460 461 is formed to dome shape, and the installed surface 473a of pile bearing portion 473 and the installed surface 474a of supporting slice 474 form concave spherical surface portion outside, thereby are provided with outer end tilted configuration structure 90 at stud 460 and stud supporting member 70.

(the 5th embodiment)

Figure 20 is the key diagram of the escapement 510 of the 5th embodiment, is the key diagram of outer end tilted configuration structure 90.Figure 21 is the cut-open view along the B-B line of Figure 20.

As shown in figure 20, the stud maintaining part 573 of stud supporting member 70 forms stretch out to radial outside tabular.At stud main part 573, along axial thread, fixed-use bolt 68 is installed.

Stud 560 forms cylindric, and configures vertically with respect to stud support 573.By tightly strangling from radial outside in end and stud 560 butts of the set bolt 565 of stud support 573, thereby stud 560 is held in stud support 573.In base plate 144 sides of stud 560 (with reference to Fig. 4.Downside in Figure 20) end face is formed with the maintaining part 561 of groove shape along the tangent line T of the outer end 45 of hairspring 40 at axial depression.In maintaining part 561, be fixed with the outer end 45 of hairspring 40.

As shown in figure 21, a part for the outer end 45 of hairspring 40 is reversed formation and is become towards axial adjustment part 45a.Adjust end and the adjustment part 45a butt of bolt 68.And the fixed part 45b that is fixed on maintaining part 561 in the outer end 45 of hairspring 40 and the region between the 45a of adjustment part become the 45c of elastic deformation portion of elastic deformation vertically.

By being screwed into, adjust bolt 68, the 45c of elastic deformation portion elastic deformation, and adjustment part 45a to base plate 144 sides (with reference to Fig. 4.Downside in Figure 21) mobile.And, by unclamping, adjust bolt 68, by the elastic recovering force of the 45c of elastic deformation portion, adjustment part 45a to escapement 104 sides (with reference to Fig. 4.Upside in Figure 21) mobile.Like this, by rotation, adjust the axial location that bolt 68 is adjusted adjustment part 45a, thereby the outer end 45 of hairspring 40 is being fixed under the state that direction tilts arbitrarily with respect to central axis O.Like this, by the stud support 573 of pile bearing part 70 outside, arrange and adjust bolt 68 and form adjustment part 45a and the 45c of elastic deformation portion in the outer end 45 of hairspring 40, thereby pile bearing part 70 and hairspring 40 are provided with outer end tilted configuration structure 90 outside.

(the 6th embodiment)

Figure 22 is the key diagram of the escapement 610 of the 6th embodiment, is the key diagram of outer end tilted configuration structure 90.

As shown in figure 22, the stud maintaining part 673 of stud supporting member 70 forms extend radially tabular.

Stud 660 forms cylindric, and configures vertically with respect to stud support 673.By be anchored on end and stud 660 butts of the set bolt 665 of stud support 673 from radial outside, thereby stud 660 is held in stud support 673.In base plate 144 sides of stud 660 (with reference to Fig. 4.Downside in Figure 22) end face, is formed with the maintaining part 661 of groove shape along the tangent line T of the outer end 45 of hairspring 40 at axial depression.In maintaining part 661, be fixed with the outer end 45 of hairspring 40.

At this, at the axial pars intermedia of stud 660, be formed with than the frangible portion of other part paths 62.By making thinner wall section 62 plastic yield, the ratio frangible portion 62 of interior stake 660 leans on base plate 144 sides (with reference to Fig. 4.Downside in Figure 22) part can tilt to any direction.Thus, the outer end 45 of hairspring 40 is being fixed under the state that direction tilts arbitrarily with respect to central axis O.Like this, by forming frangible portion 62 at stud 660, thereby be provided with outer end tilted configuration structure 90 at stud 660.

In above-mentioned each embodiment arbitrarily, when the inner end 43 of tilted configuration hairspring 40, can with the angle of inclination of inner end 43 accordingly, at random adjust angle of inclination and the vergence direction of the outer end 45 of hairspring 40.Therefore, obtain the effect identical with the first embodiment.That is, can effectively suppress the rate that the impact of release catch error causes reduces.

In addition, technical scope of the present invention is not limited to above-mentioned embodiment, without departing from the spirit and scope of the invention, can apply various changes.

Inner end tilted configuration structure 80 and outer end tilted configuration structure 90 are not limited to each variation of above-mentioned the first embodiment, the first embodiment and the form of each embodiment.And, can be also the escapement that the outer end tilted configuration structure 90 of the inner end tilted configuration structure of each variation of the first embodiment 80 and each embodiment is at random combined.

In the first embodiment, outer end 45 both sides with respect to inner end 43 and the hairspring 40 of central axis O tilted configuration hairspring 40, but at least inner end 43 tilted configuration of hairspring 40 become, when the inner peripheral surface 40a of the axially-extending hairspring 40 along balance staff 30, at least a portion in the inner peripheral surface 40a of hairspring 40 is intersected with the central axis O of balance staff 30.

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

Claims (7)

1. an escapement, is characterized in that, described escapement possesses:

Balance staff, it is configured to respect to support unit rotation freely, and the outer build-in of balance wheel is due to described balance staff; With

Hairspring, it forms along archimedes curve, and inner end and described balance staff link, and outer end and described support unit link,

Described escapement forms, and when the inner peripheral surface of hairspring described in the axially-extending along described balance staff, at least a portion in described inner peripheral surface is intersected with the central axis of described balance staff.

2. escapement according to claim 1, is characterized in that,

The described inner end of described hairspring is linked to described balance staff via outer build-in due to the interior stake of described balance staff,

At least one party in the described inner end of described hairspring, described balance staff and described interior stake is provided with inner end tilted configuration structure, described inner end tilted configuration structure is configured to the described inner end of described hairspring, when described inner peripheral surface along hairspring described in described axially-extending, at least a portion in described inner peripheral surface is intersected with the described central axis of described balance staff.

3. escapement according to claim 2, is characterized in that,

Described inner end tilted configuration structure is configured to the described inner end of described hairspring, in the described inner peripheral surface along hairspring described in described axially-extending be fixed on the inner stationary plane of described interior stake time, this inner stationary plane intersects with the described central axis of described balance staff.

4. according to the escapement described in any one in claims 1 to 3, it is characterized in that,

The described outer end of described hairspring is linked to described support unit via the stud supporting member of stud and the described stud of supporting,

At least one party in the described outer end of described hairspring, described stud and described stud supporting member is provided with outer end tilted configuration structure, described outer end tilted configuration structure is configured to the described outer end of described hairspring, when described inner peripheral surface along hairspring described in described axially-extending, at least a portion in described inner peripheral surface is intersected with the described central axis of described balance staff.

5. escapement according to claim 4, is characterized in that,

Described outer end tilted configuration structure is formed by described stud,

Described stud, with respect to described stud supporting member, is arranged to centered by the axis radially of described hairspring, to rotate, and is arranged to centered by the tangent line of the described archimedes curve at the place, described outer end of described hairspring, to rotate,

Make under the state of described stud at least one party's rotation in the described tangent line of the described described axis radially of described hairspring and the described outer end of described hairspring, the described outer end of described hairspring is supported in described stud.

6. a clock machine core, it is equipped with escapement claimed in claim 1.

7. clock and watch, is characterized in that,

Described clock and watch possess clock machine core claimed in claim 6.