CN1913293B - Geared motor - Google Patents

Abstract

A geared motor has a rotor which turns an output shaft via a drive wheel train and an operation member which is coupled slippably with the rotor, linked with the rotor to be turned in the same direction as the rotor and not the component of the drive wheel train. Further, it has a reverse-rotation preventive member which, if the rotor is turned in a direction opposite to the normal direction, operates in linkage with the turning operation of the operation member and invades the rotation region of the rotor to block the reverse-rotation of the rotor and makes the rotor rotate forcibly in the normal direction by a reaction when the rotor hits the reverse-rotation preventive member.

Description

Geared dynamo

The application is to be that June 26 calendar year 2001, application number 01122304.9 (200410048859.6), name are called the dividing an application of Chinese patent application of " rotary preventing mechanism and geared dynamo " applying date.

Technical field

The present invention relates to improvement as the geared dynamo of the driving mechanism of the draining valve that drives washing machine or the shutter of ventilation fan etc.

Background technology

Past people knows that the spy opens disclosed magnetic induction way clutch system flat 3-198638 number.

This spy opens disclosed clutch system flat 3-198638 number, planetary gears is used as clutch, be delivered to operating body by train in the revolving force way from rotor with hooking sheet with magnetic-inductive device, the rotation of this operating body is stretched in the rotational trajectory of snap-latch piece of rotary body hooking sheet, thereby stop the rotation of rotary body, the clutch that planetary gears constitutes is connected.In this conventional art, although form snap-latch piece at rotary body circumferencial direction 2 places, the rotational trajectory of hooking sheet is unexposed.As described above, in the occasion that the rotary body rotation is prevented from, the snap-latch piece of rotary body just conflicts with the same position of the hooking sheet that stretches into always, so heavy wear takes place at the engaging position, shortens the life-span of product.

Summary of the invention

The 1st purpose of the present invention is, provide a kind of holding section when rotating member and rotation stopping member blocking portion engage the position long-term conflict time difficult wearing and tearing rotary preventing mechanism and have the geared dynamo device of this rotary preventing mechanism.

In addition, in the conventional art, being used for the reverse rotation preventing mechanism that rotor is corrected towards regular direction of rotation is that counter-rotating stop by interior dress constitutes, this counter-rotating stop with and the axle periphery friction slip of rotor pinion meshed gears.In the conventional art, when rotor during towards the rotation of regular direction, the axle periphery of gear rubs with the sliding surface of counter-rotating stop always, thereby this friction makes sliding surface that wearing and tearing shortening life of product take place.Will noting in addition rubs causes the problem of grating.

The 2nd purpose of the present invention is, a kind of geared dynamo is provided, and for driver inversion prevents from not use friction slip with member without exception, thereby realizes the long lifetime of reverse rotation preventing mechanism.

And in conventional art, only depend on magnet and guided rings to carry out magnetic induction, therefore the structural degree of freedom of the specification change of magnet and guided rings is only arranged.

The 3rd purpose of the present invention is, a kind of geared dynamo is provided, and the servicing unit that also sets auxiliary magnetic strength stress except that magnet and guided rings increases the structural degree of freedom, suitably selects servicing unit just can fully guarantee magnetic strength stress.

Rotary preventing mechanism of the present invention has rotating member and rotation stopping member, rotating member has the different multiple holding section of rotational trajectory, and the rotation stopping member has blocking portion, can be free to advance or retreat on each rotational trajectory of multiple holding section, thereby enter and engage the spinning movement that stops rotating member with any of holding section, and blocking portion is according to being provided with a plurality of with the position that engages of each holding section corresponding to each rotational trajectory of multiple holding section.

Like this because the different multiple holding section of rotational trajectory is set on rotating member, so drive in accordance with regulations by the rotation stopping member, blocking portion just with a plurality of holding sections in any one engage in the position of each regulation at every turn.It is the holding section that traditional rotary preventing mechanism only has 1 rotating member, so the assigned position of blocking portion the same position each and holding section collides repeatedly, and the present invention has the structure of the position that the holding section rotational trajectory species number, dispersion and blocking portion connects.Therefore, can reduce the wearing and tearing at assigned position place of the blocking portion of rotation stopping member.In addition, in the holding section of rotating member, may disperse because of the number of its setting with the number of times that connects of blocking portion, thereby still can reduce the wearing and tearing of its position that connects.Its result, the wearing and tearing of the position that connects of two members that collide mutually during rotation stopping reduce, and the defective of the bad grade of engaging the during rotation stopping that can prevent to bring because of wearing and tearing becomes the structure that can use for a long time.

The feature of other inventions is that in above-mentioned rotary preventing mechanism, multiple holding section is in and on axial diverse location each self-configuring equidistant with the pivot of rotating member.Therefore, the turning moment of each holding section when engaging with the blocking portion of rotation stopping member is arranged to identical, and whichever holding section relative blocking portion when engaging is all collided with same power.Therefore, the power that a plurality of engagings position of blocking portion is all equated respectively when engaging is so balance is very good.

The feature of other inventions is, in above-mentioned rotary preventing mechanism, is being in same position at radial direction and forms blocking portion axially being on a series of positions of diverse location with the position that engages of each holding section.Like this, be formed on a series of position, can improve the intensity of this blocking portion by the blocking portion that will have a plurality of engagings position.

The feature of other inventions is, in above-mentioned rotary preventing mechanism, blocking portion be subjected to afterburning member all the time to the reinforcing of withdrawing from the rotational trajectory direction, be subjected to the revolving force of other members to make the rotation stopping member drives simultaneously, thereby overcome the reinforcing of afterburning member and enter in the rotational trajectory, the revolving force of other members disappears, because of the reinforcing of afterburning member makes it withdraw from rotational trajectory.

According to foregoing invention, structurally,, when blocking portion withdraws from from the rotational trajectory of the holding section of rotating member, will make its reinforcing of withdrawing from the augmentor of usefulness set weakly when the revolving force disappearance of other members.Its reason is, when non-rotating blocked state turns to the rotation stopping state, is necessary that the reinforcing that overcomes augmentor drives the rotation stopping member.Therefore, with the reinforcing setting of afterburning member=weakly fixed, originally the friction apply during disengaging is very big between the blocking portion of the holding section of rotating member and rotation stopping member in this invention.But this invention has a plurality of holding sections as described above and the engaging position of a plurality of blocking portions also is set, and can disperse this great wearing and tearing engaging.

The feature of other inventions is that in above-mentioned rotary preventing mechanism, the rotation stopping member utilizes magnetic induction and links with the rotor that becomes drive source.In this invention, the rotation stopping member is to utilize magnetic induction and the structure that is driven in rotor, thus the actuating force when the rotation stopping member is activated in order to stop rotating member to rotate very a little less than.Owing to the rotation stopping member needs to rotate with the reinforcing that this more weak actuating force overcomes afterburning member, thus with the reinforcing towards the engagement release direction of afterburning member set extremely a little less than.Like this, the friction apply when breaking away between the holding section of original rotating member and the blocking portion of rotation stopping member is bigger, and this invention is owing to making said structure, so this great friction apply is disperseed.

Other inventions are that in above-mentioned rotary preventing mechanism, rotation stopping member and rotating member are made of hardware of the same race or resin component element of the same race.The words friction slip that the member of original phase mutual friction is formed with same material can be very serious, but the present invention is owing to adopted the above-mentioned structure that friction apply is disperseed, even, also be unlikely on member, to produce damage because of the sort of friction so the member of phase mutual friction adopts same material.

Geared dynamo of the present invention has the planetary gear supporting gear of the planetary gear bearing in the drive train that is configured between rotor and the output shaft, the clutch apparatus that constitutes by the planetary gears of forming with the central gear and the ring gear of planetary gear engagement, this clutch apparatus is carried out the clutch operating mechanism of clutch operation, the part of this clutch operating mechanism adopts each described rotary preventing mechanism of claim 1 to 6, prevention action by rotating member in this rotary preventing mechanism, stop central gear, the rotation of any of ring gear and planetary gear Support Gear, thus by other 2 gears the rotation of rotor is passed to output shaft.Therefore, will suitably disperse, can not use for a long time because of the friction regulation position of wearing and tearing as the friction slip position of the rotary preventing mechanism of clutch operating mechanism part part.

In addition, geared dynamo of the present invention has: make the output shaft rotor rotated by drive train; Utilize magnetic strength stress and be combined into the rotation of following this rotor, do not constitute the actuating member of drive train simultaneously, also have the rotary area that moves, enter rotor during towards regular direction and opposite spin with the spinning movement interlock of actuating member when rotor and forcibly rotor is prevented to use member towards the counter-rotating of the rotation transformation of regular direction with the counter-rotating that stops rotor, reaction when the while collides because of rotor.That is, actuating member utilizes magnetic strength stress and is connected with rotor in the noncontact mode.Therefore when rotation usually with rotor between do not produce because of contacting caused friction, can realize the long lifetime of reverse rotation preventing mechanism.Grating does not take place yet.

Geared dynamo of the present invention has the output shaft that is connected and is rotated driving by drive train with rotor, be configured in the drive train rotor is connected with the driving of output shaft, the clutch apparatus that disconnects, this clutch apparatus is connected, the clutch operating mechanism of opening operation, this clutch operating mechanism has the magnetic induction whirligig, and the magnetic induction whirligig is by with a certain side of the magnet of rotor one interlock rotation or non-magnetic magnetic conductive body with utilize magnetic induction to follow magnet that this side rotates or the opposing party of non magnetic electric conductor is constituted, and also has the opposing party with magnetic induction whirligig action that links, described clutch apparatus is connected, disconnect and when mutually regular direction of rotor and opposite spin, limit this counter-rotating and make it be transformed into the counter-rotating of just changeing to prevent to use member.

In the said gear driving motor, to be double as carry out the function of attended operation and function that the rotation of rotor is limited and can cut down the parts number to the linkage clutch device because counter-rotating prevents with member, and the structure of utilizing magnetic strength stress to be connected with rotor in the noncontact mode, so when common rotation, between actuating member and rotor, do not produce, can improve durable years without exception because of contacting caused friction.In addition, can not produce grating yet.

Other inventions are, in the said gear driving motor, clutch apparatus has the planetary gear supporting gear of planetary gear bearing, by the planetary gears of forming with the central gear and the ring gear of planetary gear engagement, utilize the opposing party's of magnetic induction whirligig rotation to stop in central gear, ring gear and the planetary gear supporting gear any rotation, thereby the rotation of rotor is delivered to output shaft by all the other 2 gears.

Other inventions are, in the said gear driving motor, the planetary gear supporting gear is connected with the output shaft side, with planetary gears as reducing gear.Other inventions are, in the said gear driving motor, the rotation by the ring gear of clutch operating mechanism restrictions planetary gear mechanism makes central gear and planetary gear supporting gear continue rotation, and the rotation of rotor is passed to described output shaft.

Other inventions are, the said gear driving motor in, counter-rotating prevents with member and gear integrally formed, this gear meshes with gear part with the opposing party's one rotation of magnetic induction whirligig.Therefore in case rotor begins opposite spin, counter-rotating prevents from can stop the counter-rotating of rotor in early days with the member action that will begin in a minute.

Other inventions are, in the said gear driving motor, with described gear part meshed gears on form 1 rotation restrictions that the gear rotation is limited in each gear that constitutes planetary gears.Like this, the rotation restrictions and the described gear that restriction are constituted 1 gear rotation in each gear of planetary gears are integrally formed, can reduce the number of parts.

Geared dynamo of the present invention has the output shaft that is connected with rotor and is driven in rotation, to connecting of this output shaft and rotor, the clutch apparatus that disconnects, this clutch apparatus is connected, the clutch operating mechanism of opening operation, and clutch operating mechanism has and the ringshaped magnet of rotor interlock rotation or a certain side of non magnetic conducting ring, follow the opposing party of this side rotation because of magnetic induction, at the magnetic back-yoke ring (バ Star Network ヨ one Network リ Application グ) of the position configuration of clamping non magnetic conducting ring with ringshaped magnet, be connected clutch apparatus with the opposing party's interlock of following rotation.

Foregoing invention, because back-yoke ring and ringshaped magnet are clamped non magnetic conducting ring, so guide the magnetic flux of ringshaped magnet into back-yoke ring easily, by the magnetic flux that increases and back-yoke ring intersects, make that to see that from rotor the opposing party of the non magnetic conducting ring that is positioned at the train rear or ringshaped magnet follows the magnetic strength stress of rotation very strong.Therefore, the opposing party's of non magnetic conducting ring or ringshaped magnet rotary body is installed to be installed a side rotary body relatively and follows rotation reliably, like this, the action of the clutch operating mechanism that clutch apparatus is connected, disconnects is just reliable, can carry out the connection of clutch apparatus definitely.

Other inventions are that in the said gear driving motor, back-yoke ring is installed on the rotary body that non magnetic conducting ring is housed, with non magnetic conducting ring one rotation.

Other inventions are that in the said gear driving motor, the magnetic force center of the magnetic force center of the thrust direction of ringshaped magnet and the thrust direction of back-yoke ring is set for consistent with assigned position or inconsistent.

Be set in assigned position by mutual magnetic force center, the position of rotation that the rotary body of non magnetic conducting ring and back-yoke ring is housed can be set in assigned position back-yoke ring and ringshaped magnet.Promptly utilize the skew at magnetic force center and connect to determine the position of thrust direction very powerfully with the thrust carrier, or set for from the thrust carrier and float, alleviate the load of thrust direction, or make that the magnetic force center is consistent to be become suitable pushing etc. and can carry out various settings.

Other inventions are that in the said gear driving motor, back-yoke ring is installed on the rotary body that ringshaped magnet is housed, and rotates with the ringshaped magnet one.Therefore, the position of ringshaped magnet and back-yoke ring concerns the unique installation of back-yoke ring on rotary body that be decided by, and is certain, can not produce between the two after the installation to relatively move.Therefore needn't contraposition during at both magnetic force centers of setting etc.Both are easy to generate and relatively move when being installed in both on the different component respectively, and installation component produces damage because of friction waits sometimes, does not relatively move but have, so can not produce this type of problem.

The feature of other inventions is, in the said gear driving motor, forming clearance portion between non magnetic conducting ring and the back-yoke ring or between non magnetic conducting ring and the ringshaped magnet, disposes viscoid in this clearance portion.Therefore, utilize the viscosity of this viscoid can make non magnetic conducting ring to ringshaped magnet to follow rotation more reliable.

Other inventions are, in the said gear driving motor, action when clutch operating mechanism switches to disconnection from connection in the action that clutch apparatus is switched to connection from disconnection and with clutch apparatus, the relative velocity that separates the relative non magnetic conducting ring of clearance portion and back-yoke ring or non magnetic conducting ring and ringshaped magnet produces difference, it is big to switch to when connecting its rotary speed from disconnection, the effect of the viscous force of viscoid is stronger, its rotary speed is little when handovering the connection to disconnection simultaneously, and the viscous force of described viscoid is not effect almost.

In the foregoing invention, do not present how strong viscous force when following making relative rotational between the counterrotating member be in a certain speed by this viscoid, viscous force grow then when a certain speed is above as the lubricating grease of viscoid.Be that high speed rotating produces magnetic strength stress, can effectively bring into play the viscosity of lubricating grease when following rotation thus, and when low speed rotation or rotation stop magnetic strength stress very little (almost not having), the viscosity of lubricating grease is not invalid when not following rotation.Therefore, utilizing magnetic strength stress to make clutch operating mechanism when action lubricating grease can assist magnetic strength stress effectively, and to follow when moving lubricating grease inoperative can't help magnetic strength stress, the relative ringshaped magnet of back-yoke ring can freely be rotated action.

Other inventions are in above-mentioned each geared dynamo, the bearing portion that the rotary body of non magnetic conducting ring is housed to be arranged on the rotor, and to be stained with viscoid in this bearing portion.Utilize the viscous force of above-mentioned viscoid, more can guarantee to be equipped with the follow revolving force of the rotary body of non magnetic conducting ring, thereby can guarantee the action that the clutch apparatus with clutch operating mechanism connects for rotor.And, because can the rotary body of non magnetic conducting ring be housed, so can make the device integral miniaturization in the radially inner side or the outside configuration of rotor.

Other inventions are, in above-mentioned each geared dynamo, in clutch operating mechanism, have and utilize the revolving member of spring member towards a side direction of rotation reinforcing, this revolving member is subjected to the actuating force of rotor and makes side's high speed rotating in ringshaped magnet and the non magnetic conducting ring simultaneously, the opposing party follows this side, thereby overcome the reinforcing of spring member and rotate towards the opposing party's direction of rotation, make the side's low speed rotation in ringshaped magnet and the non magnetic conducting ring simultaneously or stop, thereby the opposing party follow that rotation also becomes low speed or when stopping, reinforcing by spring member is rotated its direction of rotation towards a side, for make reinforcing that revolving member overcomes spring member towards the opposing party's direction of rotation rotate or by the generating component that the reinforcing of spring member heating when a side direction of rotation is rotated is set be configured in spring member near, constitute spring member by shape memory spring, and set at generating component adstante febre and its spring force of non-adstante febre and change, this spring force dies down when revolving member is rotated.

Therefore, when magnetic strength stress was not delivered to revolving member with the rotatory force of rotor, then the spring force of spring member can make clutch mechanism force and return reliably A-stage.And, when utilizing magnetic strength stress that clutch operating mechanism is moved, only there is the spring force of very weak spring member that this action is produced reaction, when the transmission of the rotatory force that magnetic strength stress is caused stops and returning A-stage, because of having used the formative memory spring of pretending usefulness on the contrary, so opposite action (overcomes spring force, the action that revolving member is rotated by magnetic strength stress, and make the rotatory force of magnetic strength stress stop to transmit and make the revolving member action that rotates by spring force) two sides can both carry out reliably.

Geared dynamo of the present invention have be connected with rotor and overcome the load of regulation and rotate the output shaft of driving, clutch apparatus that the transmission of power between this output shaft and the above-mentioned rotor is connected, disconnects, to this clutch apparatus connect, the clutch operating mechanism of opening operation

Clutch apparatus has 2 gears, the power of above-mentioned rotor can be passed to the train of other series respectively, make the rotation of the gear of the side in these 2 gears stop just to become the state that closes by clutch operating mechanism, by the drive train that is connected with the opposite side gear with the transmission of power of rotor to output shaft

Clutch operating mechanism has the speedup train, magnetic-inductive device, the clutch switching member, wherein the speedup train is connected with the gear of a side, and magnetic-inductive device is by with the magnet or a certain side in the non magnetic conductive member of rotor interlock rotation and utilize magnetic induction and follow the opposing party that this side rotates and formed, the clutch switching member is to be connected by stoping the rotation of the engaging gear of a part that constitutes the speedup train that clutch apparatus is switched to from disconnection with the opposing party's interlock of magnetic-inductive device, and rotor is stopped, follow the disappearance of magnetic induction and break away from the engaging that engages gear, clutch apparatus switches to disconnection from connection.The structure of speedup train is, when clutch apparatus switches to disconnection from connection, when load makes the opposite direction rotation of the direction of rotation of the output shaft that output shaft drives towards the actuating force of rotor, bear the rotation of output shaft by clutch apparatus, and the rotary speed adjusting device is set on the rotating member in the speedup train, it is made up of the viscoid that utilizes air drag to be rotated the blade part of speed regulation or to utilize viscous drag to be rotated speed regulation.

Therefore, the blade part that utilizes air drag adjusting rotary speed is set on the rotating member of employing in the speedup rotation or utilizes viscous drag to regulate the so simple structure of viscoid of rotary speed, the speedup train is high speed rotating, and is just strong more to the braking force of this rotation.

Description of drawings

Fig. 1 is the vertical view of the example of rotary preventing mechanism of the present invention.

Fig. 2 is the cutaway view along Fig. 1 arrow II-II.

Fig. 3 is the stereogram of the rotating member of rotary preventing mechanism.

Fig. 4 is the vertical view of other examples of rotary preventing mechanism of the present invention.

Fig. 5 is the expansion longitudinal section that the internal mechanism of the geared dynamo device that uses rotary preventing mechanism of the present invention is described.

Fig. 6 is that the geared dynamo device with Fig. 5 removes the vertical view under lid and the outer casing upper cover state.

Fig. 7 is the expansion vertical view of action of reverse rotation preventing mechanism part of the geared dynamo of explanation the invention process form, (A) be that the initial stage time counter-rotating of the non-energising of expression prevents the location diagram with member and rotor, (B) be expression during the initial stage rotor begin to prevent location diagram with member and rotor towards the counter-rotating of regular direction rotation status, (C) be expression during the initial stage rotor begin to prevent the location diagram of usefulness member and rotor towards counter-rotating with regular direction rightabout rotation status.

Fig. 8 be Fig. 1 geared dynamo major part the rotor that ringshaped magnet is housed and the cutaway view of the guiding rotary body of non magnetic conducting ring is housed.

Fig. 9 be the present invention's the 2nd example geared dynamo major part the rotor that ringshaped magnet is housed and the cutaway view of the guiding rotary body of non magnetic conducting ring is housed.

Embodiment

Below at first the example of rotary preventing mechanism of the present invention is explained according to Fig. 1 to Fig. 3.Fig. 1 is the structure of explanation rotary preventing mechanism A of the present invention and the vertical view of action.Fig. 2 is along II-II cutaway view among Fig. 1.Fig. 3 is the stereogram of the major part of rotating member.

As shown in Figures 1 and 2, rotating member 27 towards arrow R1 direction (with reference to Fig. 1) rotation constitutes with the sector gear 25 that becomes the rotation stopping member rotary preventing mechanism A by the actuating force of the motor of chatting after utilizing 1, the rotation stopping member has blocking portion 26, and this blocking portion 26 enters the rotation that stops rotating member 27 in some rotational trajectory X1, the X2 of 2 kinds of holding section 27a, 27b of the outer peripheral face formation of this rotating member 27 (respectively be provided with 4 on each holding section 27a, 27b and amount to 8 holding sections).

Axle 27d rotation is inserted in the rotating member 27 freely, and what rotating member 27 had leading portion gear (not shown) rotation that is used to accept the gear train accepts gear 27c.Rotating member 27 has than this accepts the big engaging rotating part 27e of gear 27c external diameter.Outer peripheral face at this engaging rotating part 27e forms Fig. 1 and different 2 kinds of holding sections 27, the 27b of rotational trajectory shown in Figure 3.

Holding section 27a is separated by at half place of upside of the outer peripheral face of engaging rotating part 27e shown in Figure 2 about 90 ° and is formed 4.Therefore rotating member 27 rotational trajectory X1 of each holding section 27a when arrow R1 direction rotate is formed on half place of upside of the outer peripheral face that engages rotating part 27.But be formed with at the inclined plane 27aa that more successfully removes usefulness from state engagement release that blocking portion 26 engages the time in the place ahead of the direction of rotation R1 of this holding section 27a.

And holding section 27b promptly is separated by about 90 ° and become to form 4 with above-mentioned holding section 27a at circumferencial direction with above-mentioned holding section 27a at half place of the outer peripheral face downside of the engaging rotating part 27e of Fig. 2 staggeredly at axial diverse location place.Therefore rotating member 27 rotational trajectory X2 of each holding section 27b when arrow R1 direction rotate is formed on half place of downside of the outer peripheral face that engages rotating part 27.And form inclined plane 27bb in the place ahead of the direction of rotation R1 of this holding section 27b, so that state engagement release successfully from engaging with blocking portion 26.Above-mentioned each 4,2 kinds add up to 8 holding section 27a, 27b to dispose equidistantly at the pivot of radial direction apart from rotating member 27.

In addition, become the sector gear 25 of rotation stopping member of the rotation that stops above-mentioned rotating member 27 by driving the drive train of above-mentioned rotating member 27 drive train inequality with rotation and rotating.Promptly axle 25d inserts in the rotating center section 25a of fan rotatably, has segment gear portion 25b simultaneously.Gear part 25b and gear (not shown) engagement that is configured in drive train, by the rotation of said gear, sector gear 25 is pressed the direction rotation of arrow R2 among Fig. 1.

The quill shaft shape that the rotating center section 25a of sector gear 25 connect to be inserted by axle 25d forms above-mentioned blocking portion 26 at the upside of this rotating center section 25a of Fig. 2.This blocking portion 26 is the outstanding formation in the outside from rotating center section 25 towards radial direction.This blocking portion 26 makes sector gear 25 press the direction rotation of arrow R2 by the described gear rotation that is configured in the drive train, and its fore-end is pressed the arrow R3 direction of Fig. 1 and rotated.It is the rotation of the fore-end of blocking portion 26 gear that is configured in drive train and be driven into outer peripheral face near rotating member 27.

Blocking portion 26 is basic identical in axial size at the rotation holding section of axial size and above-mentioned rotating member 27 27e, the outer peripheral face of itself and rotating member 27 connects mobile, can enter simultaneously in above-mentioned two rotational trajectory X1, the X2 that is formed at both sides' axial dipole field position.The blocking portion 26 that constitutes like this, half place of side has the engaging position 26a that has each holding section 27a of rotational trajectory X1 to engage with upside in the axial direction, and half has the engaging position 26b that has each holding section 27b of rotational trajectory X2 to engage with downside at axial downside.Some (8 holding section in the some) blocking portion 26 interior with entering rotational trajectory X1, X2 simultaneously of each holding section 27a, 27b by the rotating member 27 in the rotation engages, and then can stop the rotation of rotating member 27.

In addition, sector gear 25 has from rotating center section 25a to the outstanding spring fastener 25e in the radial direction outside.Engage on this spring fastener 25 also as sector gear 25 is added an end of using spring (not shown) towards the rotatory force of the afterburning augmentor of arrow R5 direction (with reference to Fig. 1).Therefore sector gear 25 is added with spring towards the reinforcing of arrow R5 direction by rotatory force all the time.Be that sector gear 25 is subjected to the rightabout reinforcing of driving direction (reference arrow R2) with the gear of above-mentioned drive train always.Therefore, when above-mentioned arrow R2 direction drives, make sector gear 25 rotations with the power that can overcome the additional reinforcing with spring of this rotatory force.Therefore rotatory force additional with the reinforcing of spring set than a little less than the actuating force of the gear of drive train some.

Adopt said structure, disappear in case be configured in the actuating force of the gear in the drive train, sector gear 25 is just driven towards arrow R5 direction by the additional weak reinforcing with spring of above-mentioned rotatory force.So slide with inclined plane 27aa, the 27bb of the holding section 27a, the 27b that engage with blocking portion 26 limits that sector gear 25 is integrally formed, it is mobile that the direction (with reference to arrow R4 among Fig. 1) of the outer peripheral face of rotating member 27 is left by limit court.Its result, blocking portion 26 withdraws from from above-mentioned two rotational trajectory X1, X2, and rotating member 27 becomes the state that does not utilize this blocking portion 26 to stop rotation.

The rotation of this example stops among the A of mechanism, respectively is provided with 4 holding section 27a, 27b at the axial diverse location place of the outer peripheral face of rotating member 27.And the rotation stopping portion 26 that stops rotating member 27 is arranged on 2 engaging position 26as, the 26b place corresponding with 2 rotational trajectory X1, the X2 of above-mentioned 8 holding section 27a, 27b.

Therefore, with traditional on same position, comparing always with the rotary preventing mechanism of holding section friction apply, the blocking portion 26 of the rotary preventing mechanism A of this example respectively engage position 26a, 26b last with each holding section 27a, 27b respectively the probability of friction apply be 1/2.By the probability of the engaging of reducing friction, can reduce the degree of wear of blocking portion 26, prolong part life.

In rotating member 27 sides, with only being arranged in the past, the rotary preventing mechanism of 2 holding sections compared, and the quantity of the holding section in the example of the present invention is its 4 times, so the degree of wear of each holding section 27a, 27b alleviates, part life prolongs.

In the above-mentioned example, constitute rotation stopping member with sector gear 25, but the shape of rotation stopping member is not limited to sector gear with blocking portion 26.Promptly as shown in Figure 4, also have the circular gear 5A of gear part 25B, and gear part 25B is the rotation that is used for accepting with the drive train of the different series of rotating the drive train that drives above-mentioned rotating member 27.

Circumferential only about half of part at the outer peripheral face of this circular gear 25A is not provided with the blocking portion that stops rotating member 27 rotations as shown in Figure 1 to Figure 3, forms 5 and engage blocking portion 26A, the 26B (rotating member 27 shown in Fig. 4 is the rotating member 27 among Fig. 1 to Fig. 3) that rotates with prevention rotating member 27 with each holding section 27a, 27b and concentrate in the only about half of interval of the circumferencial direction of remainder.Promptly in a half-interval of the outer peripheral face remainder of this circular gear 25A, per 90 ° are provided with 3 blocking portion 26A that can engage, break away from above-mentioned holding section 27a, simultaneously at each blocking portion 26A in two outsides and each mid portion of the blocking portion 26A that is configured in the centre position 2 blocking portion 26B that can engage, break away from above-mentioned holding section 27b are set.

By regulating the position of rotation of circular gear 25A, in some rotational trajectory X1, the X2 that enters above-mentioned holding section 27a, 27b that make above-mentioned 5 blocking portion 26A, 26Ab some, thereby the some of some and holding section 27a, the 27b of blocking portion 26A, 26B engages to stop the rotation of rotating member 27.Such as circular gear 25A is rotated about 180 ° from this state, all blocking portion 26A, 26B are withdrawed from from above-mentioned rotational trajectory X1, X2, and rotating member 27 is freely rotated.

1 blocking portion 26 is arranged in the sector gear 25 shown in above-mentioned Fig. 1 to Fig. 3, and the diverse location of this 1 blocking portion 26 is 26a, 26b with the clamped position of each holding section 27a, 27b respectively, and among Fig. 4, blocking portion itself is provided with a plurality of.Such structure possesses effect of the present invention, promptly can not produce undue wear at the ad-hoc location of blocking portion.

Utilize Fig. 5, Fig. 6, Fig. 7 that general rotary preventing mechanism A is as shown in Figure 1 to Figure 3 described as the example example of the geared dynamo device of the part of clutch operating mechanism.Below be to above-mentioned rotary preventing mechanism A is arranged on the explanation of doing for example in the geared dynamo device as the part of clutch operating mechanism, above-mentioned rotary preventing mechanism A does not limit to and is used in this geared dynamo device.Promptly, also can be applicable to the device of other various structures as long as above-mentioned rotary preventing mechanism A is a structure of utilizing blocking portion 26 to stop rotating member 27 to rotate.

Fig. 5 is the figure that is used to illustrate the internal mechanism of geared dynamo device, especially constitutes the expansion cutaway view that concerns between each gear of drive train and clutch operating mechanism for expression in detail.Fig. 6 is the vertical view after the lid on the shell of the lid of overlapping operation bar and covering driving mechanism portion is taken down.Fig. 7 is the expansion vertical view that the explanation reverse rotation preventing mechanism partly moves.

The geared dynamo device of example of the present invention as shown in Figure 5, have with AC be drive source motor 1, by drive train 2 be connected the output shaft 3 that is driven in rotation with the rotor 11 of motor 1, become planetary gears 22 the 1st clutch apparatus that is connected, disconnects between output shaft 3 and the rotor 11, to the 1st clutch apparatus connect, the clutch operating mechanism 5 of opening operation, to the 2nd clutch apparatus 4 that is connected, disconnects between output shaft 3 and the rotor 11.Above-mentioned rotary preventing mechanism A is assembled in this geared dynamo device as the part of clutch operating mechanism 5.

Geared dynamo as mentioned above, drive source is made of AC motor 1, can't determine during starting its whichaway begin the rotation.Therefore, being provided with counter-rotating stops with member (the projection 25c of the sector gear of chatting after being equivalent to 5), rotor 11 begins counter-rotating when starting, and the rotary area that enters rotor 11 stops the counter-rotating of rotor 11, and the reaction when utilizing with rotor 11 collisions simultaneously makes rotor 11 forcibly towards regular direction rotation.

In the geared dynamo of the present invention, above-mentioned counter-rotating prevents with member and makes this counter-rotating prevent that the actuating member (the guiding pinion of chatting quite 16) with the member action from being independent structures with drive train 2.These members all are configured in not in the clutch operating mechanism 5 as the deceleration train.Therefore drive train 2 needn't be considered to reverse and prevents that the position relation with member and rotor 11 from can freely dispose.

This geared dynamo device passes to output shaft 3 sides by be connected yoke with the 2nd clutch apparatus 4 with the actuating force of motor 1, and the rotation of output shaft 3 makes bar 8 tensions.Cut off above-mentioned the 2nd clutch apparatus 4 and make the disconnection that is connected between rotor 11 and the output shaft 3, and clutch pinion 21 pins by being relative rotor 11 freely with clutch lever 41, can prevent oppositely (with the rightabout of mentioning bar 8) rotation of each of drive train 2 like this, bar 8 be kept after bar 8 is up mentioned assigned position.This state is realized by the power supply of keeping motor 1.Further motor 1 is stopped power supply from this state, then remove the locking of clutch pinion 21, impel above-mentioned drive train 2 rightabouts rotation, the position before bar 8 turns back to and mentions.

Below the structure that realizes this action is elaborated.The driving mechanism portion that is made of clutch operating mechanism 5 of motor 1, drive train 2 and switching device shifter the 1st clutch apparatus in drive train 2 etc. is placed in the shell body 12.This shell body 12 is made up of the outer casing upper cover 12b in housing main body 12a and the housing main body 12a, and this outer casing upper cover 12b is provided with the lid 12d that covers bar 8.

Bottom surface side in shell body 12 disposes the motor 1 as the drive source of bar 8 actions.Motor 1 comprises the stator department 14 that is configured in the motor housing 13 that forms cup-shaped, at the rotor 11 of interior week of stator department 14 and stator department 14 relative configurations, rotate the armature spindle 15 that supports this rotor 11 freely.Power by the coil 14a to stator department 14, rotor 11 is the pivot rotation with armature spindle 15 just.One end of armature spindle 15 runs through the bottom surface of motor housing 13 and connects with the bottom surface of housing main body 12a, and the other end is outstanding and be entrenched in the dead eye 12e that is formed on the outer casing upper cover 12b from the top of motor 1 simultaneously.

Below utilize Fig. 8 that rotor 11 and the guiding rotary body 16 that is configured in rotor 11 inboards are explained.

As shown in Figure 8, rotor 11 by have the 11a of swivel bearing portion that can connect the hole of inserting armature spindle 15 (with reference to Fig. 6), outstanding rotor magnet 11b is in the form of a ring constituted above the outer circumferential side of the 11a of this swivel bearing portion is fixed into upper lateral.But in this example, embed ringshaped magnet 11c with rotor 11 interlock rotations at the face of interior all spatial portion sides of this rotor magnet 11b.

As shown in Figure 8, dispose guiding rotary body 16 freely in the interior sideway swivel of ringshaped magnet 11c, this guiding rotary body 16 is equipped with the non magnetic conducting ring 16a of relative configuration with this ringshaped magnet 11c and back-yoke ring 16b and has pinion part 16d.Ringshaped magnet 11c also rotates in case rotor 11 rotates, and magnetic induction makes non magnetic conducting ring 16a follow this ringshaped magnet 11c rotation, and this guiding rotary body 16 is followed rotor 11 rotations as a whole and integratedly.

Upper part at the 11a of swivel bearing portion forms pawl 11d.This pawl 11d as described later, constituting the part of drive train 2 and being used for the part of clutch apparatus 4 is that the pawl 21d that the lower end of clutch pinion 21 forms engages, and the revolving force of rotor 11 is delivered to clutch pinion 21.These pawls 11d, 21d engaging becomes the 2nd clutch apparatus 4 connection status by clutch pinion 21 with the state that the revolving force of rotor 11 passes to output shaft 3 sides.And these pawls 11d, when 12d does not engage, the revolving force of rotor 11 is not delivered to clutch pinion 21, so the revolving force of rotor 11 does not pass to the off-state that the state of output shaft 3 sides becomes the 2nd clutch apparatus 4.That is, making the mechanism of pawl 21d clutch of the lower end of the pawl 11d of upper end of rotor 11 and clutch pinion 21 is the 2nd clutch apparatus 4.

All sides partly embed the compression spring 18 as the part of the 2nd clutch apparatus 4 that makes rotor 11 and clutch pinion 21 clutches in the upper end of the 11a of swivel bearing portion.Upper end outer circumferential side at the 11a of swivel bearing portion partly is provided with the guiding end difference 11e that the end portion that guides pinion 16 is guided.Guiding pinion 16 upward makes its arranged coaxial above rotor 11 by the ring-type end portion being placed on guiding with end difference 11e.

In addition as shown in Figure 7, outer peripheral face at the main body magnet 11b of portion of rotor 11, be that part along the circumferential direction is provided with the 4 recess 11k of place equably near the upper end of Fig. 5, this recess 11k is embedded in the counter-rotating that is used to stop rotor 11 reverse rotations and prevents projection 25c with member.These recesses 11k is at rotor 11 during towards the rotation of regular direction rightabout, has the bearing surface 11h with the periphery approximate vertical of rotor 11 respectively in the rear end of its circumferencial direction.

This bearing surface 11h is becoming the position that connects with the projection 25c that embeds in the recess 11 by rotor 11 and the guiding pinion 16 of following rotor 11 when regular direction rightabout counter-rotating makes sector gear 25 with regular direction reverse rotation.In case the bearing surface 11h butt of projection 25c and recess 11k just stops the continuation counter-rotating of rotor 11, behind the lock-out state of moment, the reaction during conflict changes towards positive direction it into to rotate.

The position relation of the geared dynamo that Fig. 7 (A) represents this example sector gear 25 and rotor 11 under "on" position not.Under the original position state of not switching on of Fig. 7 (A), projection 25c is in the outer peripheral face butt state with rotor 11.From this state, shown in Fig. 7 (B), rotate towards regular direction (reference arrow Y1) rotation of rotor 11 and towards common direction (reference arrow X1) in case pass through sector gear 25, then projection 25c leaves the outer peripheral face of rotor 11, rotor 11 not with projection 25c butt, can rotate automatically.

Shown in Fig. 7 (C), in case sector gear 25 rotates with opposite usually direction (reference arrow X2) because of counter-rotating (arrow Y2) court of rotor 11, then projection 25c is to the outer peripheral face side reinforcing of rotor 11, enters in despun rotor 11 rotary areas and embeds immediately in the recess 11k.Therefore, in this example, even rotor 11 begins counter-rotating, the time till being locked is very short.

In this example, as mentioned above, owing to be provided with 4 recess 11k at the outer peripheral face of rotor 11, rotor 11 reverses and makes sector gear 25 counter-rotatings, at projection 25c during near the outer peripheral face of rotor 11, projection 25c enters in 1 recess 11K in 4 with reaction as soon as possible.This structure can shorten the time of locked rotor 11, also can shorten the friction slip time and the distance of the outer peripheral face of projection 25c and rotor 11 simultaneously.

Therefore can shorten making rotor 11 switch to towards regular direction rotation, begin to mention the time till the action of bar 8, and can alleviate the friction slip of rotor 11 and projection 25c, stop the deterioration of two members from being inverted to.In above-mentioned example, the recess 11k number that the outer peripheral face of rotor 11 forms is 4,4 of less thaies also can, or also can more than 5.

With the non magnetic conducting ring 16a that copper etc. constitutes, be pressed into the back-yoke ring 16b that magnetic (be specifically iron etc.) constitutes in the most peripheral configuration of guiding rotary body in the inboard of non magnetic conducting ring 16a, insert by resin and be shaped.

The inboard relative configuration of radial direction of ringshaped magnet 11c on the most peripheral of guiding rotary body 16 disposes non magnetic conducting ring 16a and is contained in above-mentioned rotor 11.Non magnetic conducting ring 16a is the member of following ringshaped magnet 11c rotation, and non magnetic and non-magnetic induction member with conductivity is the member that is formed by metals such as copper or aluminium specifically.

Like this, produce and to make non magnetic conducting ring 16a follow the magnetic strength stress of ringshaped magnet 11C rotation, the guiding rotary body 16 that non magnetic conducting ring 16a is fixed on outer peripheral face follow rotor 11 rotation and with rotor 11 equidirectional rotations.Be that above-mentioned ringshaped magnet 11c and guided rings 16a are by magnetic induction, become magnetic induction rotor 11 devices that make the 16 relative rotor 11 driven rotations of guiding rotary body, guiding rotary body 16 is to utilize magnetic induction and the rotary body of following rotor 11 rotation, and becomes and making counter-rotating prevent actuating member with the member action.

The magnetic induction whirligig becomes the part of clutch operating mechanism 5.In this example, be to utilize magnetic strength stress to make guiding pinion 16 follow rotor 11 non-contactly,, then guide between pinion 16 and the rotor 11 and produce slippage as will forcibly stopping to guide pinion 16 rotations.The guiding pinion 16 of this structure and 25 engagements of the sector gear of clutch operating mechanism 5.

As shown in Figure 8, the back-yoke ring 16b that is configured in the magnetic of non magnetic conducting ring 16a inboard is configured to the state with the non magnetic conducting ring 16a of ringshaped magnet 11c clamping.Like this, between ringshaped magnet 11c and back-yoke ring 16b, form the magnetic circuit that passes through many magnetic fluxs.Can strengthen the magnetic strength stress of the non magnetic conducting ring 16a that ringshaped magnet 11c causes thus.Can improve the reliability of the action of guiding rotary body 16 like this, thus the reliability of the action of the clutch operating mechanism of chatting after improving 5.

Among Fig. 8, guiding rotary body 16 is subjected under the thrust rating at the thrust bearing division 11e of rotor 11, and the magnetic force center C 2 of the thrust direction of back-yoke ring 16b is partial to upside slightly than the magnetic force center C 1 of the thrust direction of ringshaped magnet 11C.Therefore the guiding rotary body 16 that is contained on the back-yoke ring 16b is arrived the 11e of bearing portion side by the magnetic attraction of ringshaped magnet 11c by towing.Like this, guiding rotary body 16 is stressed slightly towards thrust bearing division 11e side, and positional precision is rotated well.

But make both magnetic force center C 1, C2 unanimity good.So not only can make positional precision suitably good but also can alleviate pushing to thrust bearing division 11e.

In this example, although ringshaped magnet 11c is installed in rotor 11 sides that become magnetic induction whirligig one side, guiding rotary body 16 sides the opposing party who becomes the magnetic induction whirligig are installed non magnetic conducting ring 16a, but ringshaped magnet 11c is also passable with the opposite configuration of non magnetic conducting ring 16a.Promptly can non magnetic conducting ring be installed, at guiding rotation side installing ring shape magnet in rotor-side.At this moment, be configured to be contained in the state of the non magnetic conducting ring of rotor-side by ringshaped magnet and back-yoke ring clamping.Specifically, in case non magnetic conducting ring 16a is installed, then back-yoke ring 16b is installed in the outside of this non magnetic conducting ring 16a in the position of the ringshaped magnet 11c of Fig. 8.

Further the 2nd example is explained with Fig. 9.

As shown in Figure 9, rotor 51 comprise have the 51a of swivel bearing portion that can connect the hole of inserting armature spindle 15, above the outer circumferential side of the 51a of this swivel bearing portion is fixed into upper lateral outstanding rotor magnet 51b in the form of a ring, be installed in the outside of the 51a of swivel bearing portion and at the back-yoke ring 51g of the inner side of rotor magnet 51b.Be embedded in ringshaped magnet 51c with rotor 51 interlock rotations at the face of interior all spatial portion sides of rotor magnet 51b.This ringshaped magnet 51c is identical with above-mentioned the 1st example, also can be with rotor magnet 51b be one.

56 rotations of guiding rotary body are configured in the inboard of rotor magnet 51b freely.This guiding rotary body 56 has the non magnetic conducting ring 56a that is attached with flange portion in the upper end of the cylindrical portion 56c that becomes pivot.This non magnetic conducting ring 56a is configured in the gap portion that forms between the outside of the inboard of ringshaped magnet 51c and back-yoke ring 51g.

Between non magnetic conducting ring 56a and back-yoke ring 51g, be provided with clearance portion (symbol G in reference to Fig. 9), the viscoid of configuration and above-mentioned the 1st example same purpose in this clearance portion G.Can make the action of clutch operating mechanism 5 more stable like this.And in the 2nd example, also form gap (symbol G1 in reference to Fig. 9) between non magnetic conducting ring 56a and the ringshaped magnet 51c, also can in this clearance portion G1, dispose viscoid.But as long as viscoid is configured in the clearance portion G, then viscoid has and is difficult for dispersing to the effect of outside in the space of the outside that isolated by rotor 51 and guiding rotary body 56.

Above-mentioned each example is the example of preferable example of the present invention, but is not limited thereto, and implements as long as can carry out all distortion in aim scope of the present invention.Such as, in above-mentioned each example, ringshaped magnet 11c, 51c and rotor 11,51 are wholely set, the magnetic induction whirligig and rotor 11,51 arranged coaxial that will constitute by this ringshaped magnet 11c, 51c and non magnetic conducting ring 16a, 56a, but the magnetic induction whirligig can be not coaxial with rotor 11,51, such as yet configurable other positions in the train that constitutes clutch operating mechanism 5.

In addition, spring member 39 shown in Figure 6 is to be made of the shape memory spring that heating reduces its spring constant, also can be near this shape memory spring the generating component of configuration using magnetic induction heating when the revolving force of rotor 11,51 is delivered to sector gear 25.Adopt such structure, when the reinforcing that overcomes shape memory spring was rotated sector gear 25, the heating functioin of generating component descended spring force, so available very little power is rotated the sector gear 25 of magnetic induction.And rotor 11 is stopped operating, when by spring member 39 sector gear 25 being returned, spring force is being restored, very strong power makes sector gear 25 return to the involution action of original position.Therefore, though the rotational action of using the spring force of the weak induced magnet spring member 39 of magnetive attraction also can not hinder magnetic induction, and can both carry out very smooth and easy and reliably the action of both direction, like this, the action of clutch operating mechanism 5 is also very reliable.

Also can reduce the not spring constant of adstante febre of shape memory spring, and utilize heating functioin that its spring constant is increased.As the spring utilizing, make its heating when utilizing spring force that sector gear 25 is rotated, on the contrary, overcoming spring force, do not generating heat when sector gear 25 being rotated by magnetic strength stress, just can utilize very little power to carry out magnetic induction, still can use the little induced magnet of magnetic force.

The clutch operating mechanism 5 that below utilizes Fig. 5 and Fig. 6 that the actuating force with motor 1 is passed to the drive train 2 of output shaft 3 and be configured in switching the 1st clutch apparatus in this drive train 2 explains.

Drive train 2 is made of a plurality of gears, and these gears rotate respectively and are bearing in the upper part that is supported at both ends in motor housing 13 freely on the many axles of base plate that foreign side extends to form and outer casing upper cover 12b.Promptly, drive train 2 be illustrated in Fig. 5 the expansion cutaway view the right side half, it comprises clutch pinion 21, have the planetary gears 22 of the driven gear 32b that engages with this clutch pinion 21, accept the revolving force of this planetary gears 22 transmission gear 23, have and transmit the output shaft 3 of the 3a of output gear portion of gear 23 engagements.This drive train 2 is the deceleration trains that pass to output shaft 3 after the rotational delay with rotor 11, and never Tong Dian A-stage connected by above-mentioned the 2nd clutch apparatus 4 to the time of above-mentioned bar 8 being mentioned till the assigned position.

The cam surface 41a of clutch lever 41 is in the face of the upper part of clutch pinion 21.Clutch pinion 21 is pressed to cam surface 41a by the reinforcing of compression spring 18 all the time.Clutch lever 41 rotations are bearing in a distolateral supporting freely and transmit on the axle of gear 23, and the face of the upside of this part embeds the bearing butt that the axle of gear 23 is transmitted in supporting with inside simultaneously.Another of clutch lever 41 is distolateral, and a side that promptly has cam surface 41a is by armature spindle 15 swings supporting freely, the face of the upside of this part and the inner bearing butt that embeds armature spindle 15 simultaneously.And have in the side of cam surface 41a of clutch lever 41 and form sliding gomphosis in the slotted hole 41b of armature spindle 15 (with reference to Fig. 6), clutch lever 41 is that pivot rotates with the axle that gear 23 is transmitted in supporting in the scope of this slotted hole 41b.

Clutch lever 41 has operation projection 41e (with reference to Fig. 5), and this operation enters in the clutch lever operating groove 3b that forms on the side of the 3a of output gear portion with projection 41e.Therefore the revolving force of rotor 11 is by planetary gears 22 and transmit gear 23 and be delivered to the 3a of output gear portion from clutch pinion 21 and make output shaft 3 rotate (mentioning bar 8 by this rotation) in accordance with regulations, then operation is directed to clutch operating groove 3b with projection 41e, and clutch lever 41 rotates thus.Promptly connect, disconnect change action according to the rotational angle of output shaft 3 as the clutch lever 41 of the main member of the 2nd clutch apparatus 4.

Above-mentioned cam surface 41a have the spring-loaded that overcomes compression helical spring 18 with clutch pinion 21 toward the pressing down section 41c that press down.This pressing down section 41c is pressed to rotor 11 sides with clutch pinion 21 in the time till A-stage to the energising back bar 8 of not energising is mentioned assigned position.In case the cam surface 41a of clutch lever 41 is pressed to rotor 11 sides with clutch pinion 21, then the pawl 21d of clutch pinion 21 engages with the pawl 11d of rotor 11, rotor 11 and the rotation of clutch pinion 21 one.Promptly the 2nd clutch apparatus 4 becomes the state of connection.

In case the 3a of output gear portion has finished the rotation of regulation, the pressing down section 41c of the cam surface 41a of clutch lever 41 is moved towards the position of leaving the upper surface part of clutch pinion 21 by the guiding of clutch lever operating groove 3b.Clutch pinion 21 is moved upward by the spring-loaded of compression helical spring 18 like this, makes the disengagement that is connected of clutch pinion 21 and rotor 11.Promptly the 2nd clutch apparatus 4 switches to the state of disconnection.So just be disconnected being connected between rotor 11 and the output shaft 3.Therefore each gear that constitutes drive train 2 is desired to opposite spin by the load forces effect of bar 8.

Clutch lever 41 has prevention member (not shown), and when clutch pinion 21 was subjected to the spring-loaded effect and is moved upward, this prevention member can stop the rotation of clutch pinion 21 on the position up.Therefore clutch pinion 21 is the state of disconnection because of the 2nd clutch apparatus 4, and after rotor 11 became freedom relatively, the above-mentioned prevention member by clutch lever 41 was prevented from rotating.Each gear of drive train 2 is locked like this, even also can not reverse by the load forces of bar 8.That is, locked with the central gear 32 of clutch pinion 21 engagement, and utilize magnetic strength stress and make clutch operating mechanism 5 actions, ring gear 33 is locked, and output shaft 3 is maintained at the position of finishing its rotation.

In case cut off the power supply to motor 1, the 1st clutch apparatus just is the state of disconnection, ring gear can rotate freely.Therefore the load forces effect that is subjected to bar 8 is towards the direction of extracting bar 8 out opposite spin during promptly with motor-driven.At this moment, above-mentioned clutch lever 41 is followed the reverse rotation of the transmission gear 23 in the drive train 2 and bar 8 is turned to the preceding position side of lifting.Its result, the pressing down section 41c of clutch lever 41 is depressed into rotor 11 sides with clutch pinion 21, and the 2nd clutch apparatus 4 is the state of connection.Promptly cut off to motor 1 energising, bar 8 is decontroled from promoting the holding position, then the 2nd clutch apparatus 4 is the state of connection (the pawl 21d that is clutch pinion 21 engages with the pawl 11d of rotor 11).

Planetary gears 22 is made of central gear 32, ring gear 33, planetary gear supporting gear 34.Central gear 32 have with clutch pinion 21 engagement, accept rotor 11 sides actuating force driven gear 32b and with periphery a plurality of planetary gears 36 engagements are arranged and to the transmission gear 32a of planetary gear 36 transmission of drive force.Ring gear 33 have with interior all gear part 33a of planetary gear 36 engagement and with the periphery gear part 33b of speed increasing gear 28 engagements of the terminal part of clutch operating mechanism 5.Planetary gear supporting gear 34 has respectively with the support plate 34a of planetary gear 36 rotations supporting freely and the pinion part 34b that meshes with transmission gear 23.Such planetary gears 22 is accepted the rotation of clutch pinion 21 and is made central gear 32 rotations, the rotation of this central gear 32 makes a plurality of planetary gears 36 respectively towards the direction rotation opposite with the direction of rotation of central gear 32, ring gear 33 be subjected to these planetary gears 36 the opposite direction rotation effect and rotate.

Therefore, allow be configured in the rotation that clutch operating mechanism 5 interior above-mentioned rotary preventing mechanism A move and stop rotating member 27, make each member of clutch operating mechanism 5 stop action, then the ring gear 33 with speed increasing gear 28 engagements stops the rotation.Thus, each planetary gear 36 relative central gear 32 revolution.That is, planetary gear supporting gear 34 rotations of each planetary gear 36 are supported in rotation freely.Like this, the revolving force that is delivered to the rotor 11 of planetary gears 22 by clutch pinion 21 passes to the 3a of output gear portion by the transmission gear 23 with 34 engagements of planetary gear supporting gear, and bar 8 is mentioned by the actuating force of motor 1.Promptly in the geared dynamo device of this example, above-mentioned rotary preventing mechanism A is the change action that is used to carry out the 1st clutch apparatus.

As mentioned above, clutch operating mechanism 5 is to be planet gear mechanism 22 as the 1st clutch apparatus of handover configurations in above-mentioned drive train 2.Be the clutch operating mechanism 5 expansion cutaway view that is illustrated in Fig. 5 the left side half, constitute by sector gear 25 rotary preventing mechanism A and speed increasing gear 8.Wherein, sector gear 25 has the blocking portion 26 that the guiding pinion 16 of itself and rotor 11 interlocks is driven by magnetic strength stress.Thereby rotary preventing mechanism A stops the rotating member 27 of rotation to constitute by engaging with blocking portion 26.Speed increasing gear 28 meshes with the driven gear 27C of rotating member 27, and the ring gear 33 with planetary gears 22 meshes simultaneously.

Basically with Fig. 1 to Fig. 3 the structure of rotary preventing mechanism A is described, makes some supplementary notes with Fig. 6 again.As shown in Figure 6, on the spring fastener 25e of sector gear 25, be fixed with rotatory force and supply with the other end, and rotational structure is fixed on the pin 38 of being located at motor housing 13 with an end of spring 39 with spring 39.Sector gear 25 is supplied with by rotatory force to obtain with the reinforcing of spring 39 towards the rotatory force of direction (direction of arrow R5 among Fig. 6) rotation of the direction of rotation of the actuating force of motor 1.But, the turning moment of following the guiding pinion 16 that the rotor 11 of motor 1 rotates is supplied with driving moment with spring 39 in order to overcome rotatory force, guiding pinion 16 follow rotor 11 when rotating sector gear 25 overcome rotatory force and supply with and rotate in the opposite direction towards above-mentioned arrow R5 side with the reinforcing of spring 39.

Utilize the clutch operating mechanism 5 of above-mentioned rotary preventing mechanism A, when motor 1 energising, utilize magnetic induction to make sector gear 25 rotations, some among holding section 27a, the 27b of blocking portion 26 and rotating member 27 engaged.And such engaging stops the rotation of rotating member 27, and the action that each member of formation clutch operating mechanism 5 is so far is locked.Like this, locked as the rotation of the ring gear 33 in the planetary gears 22 of the 1st clutch apparatus, the 1st clutch apparatus is in the state of connection.

When the 1st clutch apparatus be in the state of connection, when above-mentioned the 2nd clutch apparatus 4 also is in the state of connection, the rotation of rotor 11 by planetary gears 22 central gear 32 and planetary gear 34 to output shaft 3 side transmission.From this state, only keep the 2nd clutch apparatus 4 and be in and disconnect and the 1st clutch apparatus is in the state of connection, then rotor 11 was disconnected with being connected of output shaft 3, and above-mentioned bar 8 remains on the position of mentioning.

By further make motor 1 outage from this state, the then magnetic strength stress relieved between rotor 11 and the guiding pinion 16, the rotatory force of chatting after sector gear 25 is subjected to is supplied with and is rotated with the reinforcing of spring 39, and blocking portion 26 is disengaged with the holding section 27a or the engaging of 27b of rotating member 27.So just removed the lock-out state of each one of clutch operating mechanism 5.Therefore, be subjected to the rotatory force of the output shaft 3 of external load desire counter-rotating to pass to drive train 2 it is reversed, and pass to rotating member 27 by planetary gears 22 and speed increasing gear 28, rotating member 27 rotates freely.This state of rotating member 27 makes the hold mode of bar 8 obtain removing.

This moment, rotating member 27 speedups were desired high speed rotating.But the upper end side at this rotating member 27 is provided with 4 blade part 27f, so the blade part 27f of high speed rotating, its suffered air drag is big more.Its result, rotating member 27 can't be with the rotation of very high speed, the adjusted and slow rotation of speed.The gear of rotating member 27 and leading portion thereof all can't high speed rotating like this, the adjusted and slow rotation of speed.The rotating member 27 that promptly has blade part 27f becomes the rotary speed adjustment means of the rotary speed of regulating each rotating member.In this example, the rotary speed adjustment means is made of the rotating member 27 with 4 blade part 27f, and blade part 27f also can not be 4, and reducing or increase can.

In addition, the viscoid of the rotary speed of regulating rotating member 27 further is set between the upper end of blade part 27f and outer casing upper cover 12b, beyond above-mentioned air drag, along with the increase of rotary speed, also can utilize the viscoid of viscosity adjustment speed (speed reduction) and the rotary speed of regulating rotating member 27.Certainly the rotary speed adjustment means also can not be provided with blade part, can only regulate as rotary speed with the viscosity of viscoid and use member.

Such as, also discoid member can be set in the upper part of rotating member 27, the configuration rotary speed is regulated and is used viscoid in the gap between this disc-shaped component and outer casing upper cover 12b.In addition, such as the wall that can on outer casing upper cover 12b, form a periphery part that surrounds rotating member 27, the gap portion configuration viscoid between the peripheral part of the inner peripheral surface of this wall and rotating member 27.Viscoid is selected for use as far as possible along with the raising of the revolving force of rotating member can more effectively bring into play its viscosity, with the lubricating grease of the type that suppresses high speed.

In the above-mentioned example, this rotating member 27 is as the rotary speed adjustment means, also can be with other gears of the clutch operating mechanism 5 that is made of the speedup train as the rotary speed adjustment means.And, also can partly coat viscoid in the gears engaged that constitutes planetary gears 22.

Now the various piece that constitutes clutch operating mechanism 5 is further described.

Below the action of the geared dynamo device of above-mentioned example is explained.

This geared dynamo device is under the A-stage that motor 1 is not switched on, and the pressing down section 41c of the cam surface 41a of above-mentioned clutch lever 41 is in the position that the spring force that overcomes collapse coil spring 18 is depressed clutch pinion 21.Therefore, below clutch pinion 21 was pressed towards in Fig. 5, the pawl 11d of the pawl 21d of clutch pinion 21 lower ends and the upper end of rotor 11 was in fastening state.Promptly the 2nd clutch apparatus 4 is the state of connection, and the drive train 2 that rotor 11 is connected with output shaft 3 by clutch pinion 21 is in the state of connection.

From this state, make clutch pinion 21 with rotor 11 rotations by the actuating force of motor 1, then this rotation passes to central gear 32, a plurality of planetary gear 36 of planetary gears 22, the rotation on planet gear support gear 34 of each planetary gear 36.Therefore, ring gear 33 rotations that have the interior all gear part 33a that mesh with this planetary gear 36.

On the other hand, under this state, the guiding pinion 16 of clutch operating mechanism 5 sides rotates with the rotation of rotor 11.At the rotation initial stage, rotor 11 beginning is when regular side rotates in the opposite direction, and the projection 25c of above-mentioned sector gear 25 embeds among 4 recess 11k on the outer peripheral face that is formed at rotor 11 1, makes the inverse transform of rotor 11 become positive rotation.

After rotor 11 has just begun positive rotation, be formed at blocking portions 26 in the sector gear 25 and be in any position that does not engage among each holding section 27a, 27b with rotating member 27.Be that rotary preventing mechanism A does not also work, blocking portion is in the state that does not stop rotating member 27 rotations.

Therefore planetary gears 22 can't stop the rotation of above-mentioned ring gear 33.In case the rotation of ring gear 33 can't stop, then the rotatory force of rotor 11 sides disperses to transmit to output shaft 3 sides and rotating member 27 sides from this planetary gears 22 by after the clutch pinion 21 input planet gear mechanisms 22.The turning moment that is delivered to these rotating member 27 sides is compared very little with the turning moment of drive train 2 sides, so this actuating force can't make output shaft 3 rotate.In this example, this state is called the off-state of the 1st clutch apparatus.

Be changed at the 1st clutch device under the state of disconnection, bar 8 is not mentioned action, only carries out by the rotation of rotor 11 guiding pinion 16 being rotated, and becomes the action that only makes sector gear 25 and blocking portion 26 unitary rotation thus.Separate with planetary gears 22 and become the speedup train, lack with the time compole till rotating member 27 engages so become the blocking portion 26 of the basic point of next action towards the transmission circuit of rotating member 27.

This action makes sector gear 25 accept the rotation of guiding pinion 16 and makes blocking portion 26 rotate the angle of regulation, then blocking portion 26 move to can with the some positions that engages among holding section 27a, the 27b of rotating member 27.Rotary preventing mechanism A starts working like this, and the rotation of rotating member 27 is prevented from.The each several part that constitutes clutch operating mechanism 5 so all connects and rotation stops, and is subjected to becoming the influence that the speed increasing gear 28 of the terminal part of clutch operating mechanism 5 stops, and the ring gear 33 of planetary gears 22 also just stops.

By the effect that rotary preventing mechanism A is produced, each one of clutch operating mechanism 5 (being located at except the ringshaped magnet 11C in the rotor 11) and the rotation of ring gear 33 that becomes the planetary gears 22 of the 1st clutch apparatus stop.Its result, only pass to by planetary gears 22 with the rotatory force of the clutch pinion 21 of rotor 11 unitary rotation and to transmit gear 23, then the output shaft 3 that accept to transmit the rotatory force of gear 23 by the 3a of output gear portion rotates, is the state that above-mentioned the 1st clutch apparatus is connection, the rotatory force of rotor 11 passes to output shaft 3 efficiently by drive train 2, and output shaft 3 is mentioned dwang 8.

Output shaft 3 rotates predetermined angular, bar 8 referred assigned positions, and the pressing down section 41C of the cam surface 41a of clutch lever 41 shifts to the position of the upper surface part of leaving clutch pinion 21 during this period.Clutch pinion 21 is moved towards the top of Fig. 5 by the spring-loaded of collapse coil spring 18 like this, and the engaging of clutch pinion 21 and rotor 11 is disconnected, and the 1st clutch apparatus 4 is the state of disconnection.

This mention action when finishing if still keep "on" position, then rotor 11 continues rotation certainly.And guiding pinion 16 is followed the spinning movement of rotor 11 because of the slippage limit takes place on magnetic strength stress desire limit, so keep the rotation stopping function of above-mentioned rotation stopping member A.Its result, above-mentioned the 1st clutch apparatus is kept the state of connection.

On the other hand, bar 8 is from the effect of the load forces of experiencing and desire to return original position.But the return action of this bar 8 is subjected to the locking of 41 pairs of clutches 21 of above-mentioned clutch lever and is prevented from, and bar 8 is maintained at the position of mentioning.Promptly be located at prevention members (not shown) in the clutch lever 41 be subjected to clutch lever 41 rotation and be located at abutting member (not shown) butt in the clutch pinion 21 that moves up and down and make clutch pinion 21 lockings.

This clutch pinion 21 moves up and down with the inclined-plane of the cam surface 41a of clutch lever 41 as mentioned above.In case outage, the 3a of output gear portion is subjected to load forces and rotates towards the opposite direction of common driving direction, and then the pressing down section 41c of the cam surface 41a of clutch lever 41 is moved towards the position of leaving the upper surface part of clutch pinion 21 down by the guiding of the clutch lever operating groove 3b of the 3a of output gear portion.Simultaneously, the prevention member (not shown) that is located in the clutch lever 41 leaves the abutting member (not shown) that is located in the clutch pinion 21.Therefore in a single day turn back to the A-stage of cutting off energising, then clutch pinion 21, can be rotated with rotor 11 one toward pressing down and be not prevented from rotation by clutch lever 41.

Finish like this and mention the action back if keep "on" position, the then rotary preventing mechanism A generation effect in the clutch operating mechanism 5, the rotation of the ring gear 33 of planetary gears 22 is stoped, and the counter-rotating of the opposing party's clutch pinion 21 is stoped and the rotation with the central gear 32 of clutch pinion 21 planet gear meshed mechanisms 22 is stoped.Promptly under this state, 2 in main 3 gears of formation planetary gears 22 are stopped, and drive train 2 integral body are not moved, and mention the position so bar 8 can remain on.Therefore, bar 8 is not drawn out the shell outside because of load forces, keeps this state mentioning the position.

If stop motor 1 energising from this state, then rotor 11 stops the rotation.Therefore guide the magnetic strength stress relieved between pinion 16 and the rotor 11.The sector gear 25 that loses the actuating force of guiding pinion 16 sides is supplied with the reinforcing of spring 39 towards direction (in Fig. 6 arrow R5 direction) rotation opposite with the direction of rotation that is caused by the actuating force that guides pinion 16 by rotatory force together with blocking portion 26.Therefore some engaging is disengaged among holding section 27a, the 27b of blocking portion 26 and rotating member 27, and rotating member 27 relative blocking portions 26 become free state.It is the state that above-mentioned the 1st clutch apparatus is in disconnection.

In case being connected that rotor 11 and magnetic strength stress between the ring gear 33 cause is disengaged, then rotating member 27 gains freedom, become the power that makes ring gear 33 rotations, ring gear 33, speed increasing gear 28 and rotating member 27 rotations with the restoring force of the bar 8 of the rotation of output shaft 3 interlock.Therefore bar 8 is pulled to the shell lateral direction from the effect of the load of experiencing.Therefore bar 8 is pulled to the shell lateral direction from the effect of the load of experiencing.Be that bar 8 turns back to the position before being drawn out.Be subjected to the sliding action of bar 8 this moment, output shaft 3 towards with above-mentioned rightabout rotation of mentioning when driving.The rotation of output shaft 3 makes the rotation of gear part 3a and output shaft 3 one, and the guiding of the clutch lever operating groove 3b by being formed at the 3a of this output gear portion is rotated clutch lever 41.Like this, clutch lever 41 makes the upper surface butt of cam surface 41a and clutch pinion 2, and the spring-loaded that makes clutch pinion 21 overcome compression helical spring 18 stops towards the position that rotor 11 directions press down.Its result, the pawl 21d of clutch pinion 21 and the pawl 11d of rotor 11 are configured in the position that can engage mutually, and the 1st clutch apparatus 4 is returned to the A-stage of connection.

Above-mentioned each example is the example of example preferably of the present invention, but is not limited to this, can carry out all distortion and implement in aim scope of the present invention.Such as, in above-mentioned each example, holding section 27a, the 27b that will engage with the blocking portion 26 as the sector gear 25 of rotation stopping member alternately respectively dispose 4 at the outer peripheral face of rotating member 27 staggeredly, but the aligning method of holding section 27a, 27b can not be staggered also, and random alignment also can.In addition, be not each 4, each below 3 or each more than 5 also can, also can different numbers with holding section 27a, 27b.

In above-mentioned each example, the rotational trajectory of the holding section of rotating member 27 is 2 kinds, and the kind of rotational trajectory is also passable more than 3 kinds.Such as, in 3 holding sections of axial diverse location configuration of the outer peripheral face of rotating member 27, these 3 kinds of holding sections are carried out the helical form configuration or random arrangement also passable.

In above-mentioned each example, by the periphery at rotating member 27 form each holding section 27a, 27b all holding section 27a, 27b radially with the equidistant position configuration of the pivot of rotating member 27, but be not limited thereto.Such as, from rotating center section the position 2 kind or more of rotating member 27, the holding section being set respectively with the face of an axial side, the rotational trajectory of each holding section is also passable more than 2 kinds.Even so structure is because of each holding section engages with the different parts of blocking portion separately, so can prevent the extreme friction apply of the ad-hoc location of blocking portion.

In above-mentioned each example, the rotating member 27 of formation rotary preventing mechanism A and each material of blocking portion 26 are not described, according to above-mentioned rotary preventing mechanism A, because of the friction slip position disperses to have reduced the friction slip number of times at regulation position, so producing two members 27,26 of friction slip can be with identical material, and adopts identical material to be easy to generate the friction slip deterioration originally.Adopt identical material can rationally purchase material, can reduce manufacturing cost.

As mentioned above, rotary preventing mechanism of the present invention and adopt the geared dynamo device of this mechanism, because of in rotating member, being provided with the different holding section of multiple rotating shaft track, so driving, thereby make certain 1 in blocking portion and a plurality of holding sections to engage in the position of each regulation by the rotation stopping member is stipulated at every turn.It is the butt position that disperses blocking portion and holding section among the present invention with the rotational trajectory species number.Therefore can alleviate of the wearing and tearing of the blocking portion of rotation stopping member at assigned position.In addition, the holding section of rotating member can disperse butt with blocking portion because of the number of its setting, so still can reduce the wearing and tearing of described butt position, its result, when stoping rotation, can reduce the wearing and tearing of two member butt positions of mutual collision, problem such as the engaging the during rotation stopping that can prevent to cause because of wear reason is bad becomes the structure that can use for a long time.

Another invention of the present invention is to utilize magnetic strength stress that the relative rotor noncontact of actuating member is connected.Do not produce contact friction between actuating member and the rotor when therefore rotating usually, can improve and use a year number, and not have grating.

Another invention of the present invention is except that magnet and guided rings, also possesses the servicing unit of auxiliary magnetic strength stress, thereby has increased the structural degree of freedom, can guarantee enough magnetic strength stress by suitable selection servicing unit.

Claims (1)

1. geared dynamo is characterized in that geared dynamo has: be connected with rotor and overcome the load of regulation and rotate the output shaft of driving; The clutch apparatus that transmission of power between this output shaft and the above-mentioned rotor is connected, disconnects; To this clutch apparatus connect, the clutch operating mechanism of opening operation,

Described clutch apparatus has 2 gears, these 2 gears can pass to the power of above-mentioned rotor respectively the train of other series, the rotation of the gear of the side in these 2 gears is stopped and making described clutch apparatus become the state of connection by described clutch operating mechanism, give described output shaft by the drive train that is connected with the opposite side gear with the transmission of power of described rotor

Described clutch operating mechanism has the speedup train, magnetic-inductive device, the clutch switching member, wherein said speedup train is connected with the gear of a described side, and described magnetic-inductive device by with the magnet of described rotor interlock rotation or with the non magnetic conductive member of described rotor interlock rotation in a certain side and utilize magnetic induction to follow magnet that this side rotates or the opposing party in the non magnetic conductive member is formed, described clutch switching member is to stop the rotation that engages gear of a part that constitutes described speedup train by linking with the opposing party of this magnetic-inductive device, thereby make described clutch apparatus switch to connection and described rotor is stopped from disconnection, and follow the disappearance of magnetic induction and break away from the described engaging that engages gear, make described clutch apparatus switch to disconnection from connection

The structure of described speedup train is, switching to disconnection owing to described clutch apparatus from connection, when load makes described output shaft towards the opposite direction rotation of the direction of rotation of the described output shaft that drives with actuating force by described rotor, bear the rotation and the speedup of described output shaft by described clutch apparatus, transmit this rotation simultaneously to the rotating member in the described speedup train, and on the rotating member in described speedup train the rotary speed adjusting device being set, this rotary speed adjusting device is made up of the viscoid that utilizes air drag to regulate the blade part of rotary speed or to utilize viscous drag to regulate rotary speed.

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