CN104343894B - Deceleration transmission bearing - Google Patents

Deceleration transmission bearing Download PDF

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Publication number
CN104343894B
CN104343894B CN201310330704.0A CN201310330704A CN104343894B CN 104343894 B CN104343894 B CN 104343894B CN 201310330704 A CN201310330704 A CN 201310330704A CN 104343894 B CN104343894 B CN 104343894B
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China
Prior art keywords
inner ring
outer shroud
ring surface
internal tooth
tooth
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Application number
CN201310330704.0A
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Chinese (zh)
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CN104343894A (en
Inventor
李茂碷
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International Seiko Co.,Ltd.
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李茂碷
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Priority to CN201310330704.0A priority Critical patent/CN104343894B/en
Priority to TW103101749A priority patent/TWI572788B/en
Priority to TW103201020U priority patent/TWM482664U/en
Publication of CN104343894A publication Critical patent/CN104343894A/en
Application granted granted Critical
Publication of CN104343894B publication Critical patent/CN104343894B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H49/00—Other gearings
    • F16H49/001—Wave gearings, e.g. harmonic drive transmissions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54—Systems consisting of a plurality of bearings with rolling friction
    • F16C19/55—Systems consisting of a plurality of bearings with rolling friction with intermediate floating or independently-driven rings rotating at reduced speed or with other differential ball or roller bearings

Abstract

The present invention provides a kind of deceleration transmission bearing, it includes the first outer shroud being mutually socketed and the second outer shroud, rolling member is provided between first outer shroud and the second outer shroud, prevents the first outer shroud from axially or radially being separated with the second outer shroud, and the first outer shroud is provided with the internal tooth of the different numbers of teeth from the inner ring surface of the second outer shroud.Also include an inner ring being rotatably arranged in first and second outer shroud, the outer ring surface of inner ring is provided with external tooth.Also include a harmonic device being rotatably arranged in inner ring, harmonic device can promote inner ring when rotating, the external tooth at an at least position for inner ring is engaged on the internal tooth of the first outer shroud and the second outer shroud, can so utilize the rotation of number of teeth difference, reach high speed reducing ratio gearing.The construction that the present invention is connected together by the first outer shroud and the second outer shroud, reduce the frictional force that the first outer shroud and the second outer shroud mutually rotate, and promote the steadiness being socketed each other, effectively prevent the first outer shroud to be axially disengaging with the second outer shroud, the purpose that volume-diminished and structure are simplified can be reached.

Description

Deceleration transmission bearing
Technical field
The present invention is available for transmission mechanism firmly to support and has speed change biography concurrently about a kind of deceleration transmission bearing, espespecially one kind The transmission component design of action.
Background technology
Runner assembly of the existing bearing as rotating shaft, the radial direction of rotating shaft and axially support can be provided, for holding shaft Center, and promote the sliding of rotating shaft and reduce frictional force, in addition, in general bearing does not just have other functions. Therefore when bearing is applied in the mechanism of deceleration transmission, such as motor drives a drive axis to slow down, it is impossible to utilize Above-mentioned bearing reaches the function with deceleration；The general practice can only utilize a speed change gear（Such as gearbox）It is connected to motor Between power transmission shaft, the power of motor shaft is set first to input speed change gear, after multiple The gear decelerations in speed change gear, then Drive the power transmission shaft of the speed change gear other end；Therefore the volume of overall transmission mechanism can not effectively reduce, it is difficult to apply in essence On close machine (such as mechanical arm) or the limited equipment of installing space.
In addition, a kind of harmonic drive (Harmonic drive) now, citing as United States Patent (USP) US4625582, US5662008, US7552664, US4909098 etc., and European patent EP 0514829 etc., it mainly has a steel loop, steel loop Inner ring surface be provided with internal tooth；The flexbile gear of one cup, the outer wall of flexbile gear is provided with external tooth, and flexbile gear is arranged among steel wheel；And one Harmonic device, it includes a cam and one is set in the flexible bearing of cam, and flexible bearing is strutted by cam, makes the flexible bearing be in Ellipse is resisted against the inner face of flexbile gear, and then the external tooth of flexbile gear is engaged on the internal tooth of steel loop.But this harmonic drive Cup-shape flexspline be not easy to fabricate, the internal tooth of steel loop can not be fully engaged at when external tooth is softened, and overall axial direction is long Spend larger, be not easy to apply in the limited precision machinery in space.
There is a kind of harmonic drive in addition, then do not use cup-shape flexspline, such as U.S. Patent Publication the No. US20130081587, it includes two steel loops side by side, and the inner ring surface of steel loop is equipped with internal tooth；One inner ring, the outer wall of inner ring It is arranged on provided with external tooth, and by flexbile gear among steel wheel；And one harmonic device strut inner ring, the external tooth of inner ring is engaged on two steel loops Internal tooth.However, two steel loop is construction side by side, it may occur that the situation of axial separation, therefore other shells etc. must be installed additional Component, two steel loop axial separations are prevented, thus cause its overall structure huger, manufacturing cost is also higher.
Therefore, how deceleration device and bearing to combine together, a simplest deceleration transmission bearing is formed, can be with (such as mechanical arm) is directly loadable into engineering goods, reaches bearing and has deceleration transmission effect concurrently, while in volume and weight, With being extremely improved, for the technical problem of the invention actively to solve.
The content of the invention
The purpose of the present invention is providing a kind of deceleration transmission bearing, and it is by the internal tooths of two outer shrouds to socket-connect, in one The external tooth of ring is engaged in internal tooth, and harmonic device (wave generator) structure design of a driving inner ring, and then volume The purpose of deceleration transmission and bearing function is simplified, had concurrently in diminution, structure.
In order to achieve the above object, deceleration transmission bearing provided by the invention, including：
One first outer shroud, it has one first outer ring surface, one first inner ring surface and one second inner ring surface, first inner ring surface Diameter be more than the diameter of second inner ring surface, first inner ring surface is arranged with circle the first roller groove, second inner ring surface Provided with the first internal tooth；
One second outer shroud, it is rotationally embedded among the first inner ring surface of first outer shroud, and it has one second outer shroud Face and one the 3rd inner ring surface, second outer ring surface are arranged with one second roller groove, and the 3rd inner ring surface is provided with the second internal tooth, should The number of teeth of second internal tooth and first internal tooth has the number of teeth poor；
Multiple first rolling members, the first rolling member spread configuration in first outer shroud the first roller groove with this second Between second roller groove of outer shroud；
One inner ring, it is rotatably arranged in first outer shroud and second outer shroud, and it has one the 3rd outer ring surface and one 4th inner ring surface, the 3rd outer ring surface are provided with external tooth；And
One harmonic device, it is rotatably arranged among the inner ring, and it is supported on the 4th inner ring surface of the inner ring, and pushing should The external tooth of an inner ring at least site of engagement is engaged in first internal tooth and second internal tooth.
Wherein, the inner ring is to be capable of the becket of elastic deformation, and the harmonic device pushes two relative engaging pieces of the inner ring The external tooth of position is engaged in first internal tooth and second internal tooth.
The inner ring is rigid becket, the harmonic device push a site of engagement of the inner ring external tooth be engaged in this first Internal tooth and second internal tooth.
First rolling member is roller or ball.
Wherein, the harmonic device includes one first cam and multiple second rolling members, has around first cam one convex Wheel face, second rolling member are arranged at the cam surface, and are resisted against the 4th inner ring surface of the inner ring.
Wherein, the harmonic device includes a retaining ring, and the retaining ring is sheathed on the cam surface of first cam, second rolling Part is arranged at the retaining ring.
Wherein, second rolling member is roller or ball.
Wherein, the harmonic device includes one second cam and multiple 3rd rolling members, is provided with around second cam multiple Fulcrum, the 3rd rolling member are incorporated on the fulcrum, and are resisted against the 4th inner ring surface of the inner ring.
Wherein, the 3rd rolling member is bearing.
Present invention has the advantage that：
The deceleration transmission bearing of the present invention, power can be transferred to the cam of harmonic device, when the cam rotation of harmonic device When, the second rolling member or the 3rd rolling member is resisted against rolling in the 4th inner ring surface of inner ring, and then engage the external tooth of inner ring In the first internal tooth and the second internal tooth, because the first internal tooth and the second internal tooth have, the number of teeth is poor, when the first outer shroud is fixed, will make Two outer shrouds are driven by inner ring and form underdrive, and then deceleration transmission has the purpose of bearing concurrently.Particularly, the present invention the The construction that one outer shroud and the second outer shroud connect together, and the first outer shroud and the second outer shroud are blocked with the first rolling member, so The axial width of deceleration transmission bearing can be shortened, reduce the frictional force that the first outer shroud and the second outer shroud mutually rotate, and can promote The steadiness being socketed each other, effectively prevent the first outer shroud to be axially disengaging with the second outer shroud, thus do not need other casing components, energy Reach the purpose that volume-diminished and structure are simplified.
Brief description of the drawings
Fig. 1 is the first decomposing state schematic diagram of the first preferred embodiment of the invention.
Fig. 2 is the first decomposing state schematic diagram of the first preferred embodiment of the invention.
Fig. 3 is the assembled state diagrammatic cross-section of the first preferred embodiment of the invention.
Fig. 4 is the assembled state diagrammatic cross-section of the first preferred embodiment of the invention.
Fig. 5 is the engagement schematic diagram of the first preferred embodiment of the invention.
Fig. 6 is the diagrammatic cross-section of another embodiment of the first rolling member of the invention.
Fig. 7 is the diagrammatic cross-section of another embodiment of harmonic device in the first preferred embodiment of the invention.
Fig. 8 is the schematic side view of another embodiment of harmonic device in the first preferred embodiment of the invention.
Fig. 9 is the application state ginseng figure of the first preferred embodiment of the invention.
Figure 10 is the deceleration transmission action schematic diagram one of the first preferred embodiment of the invention.
Figure 11 is the deceleration transmission action schematic diagram two of the first preferred embodiment of the invention.
Figure 12 is the diagrammatic cross-section of the second preferred embodiment of the invention.
Figure 13 is the schematic side view of the second preferred embodiment of the invention.
In figure：
1 first outer shroud；11 first outer ring surfaces；
12 first inner ring surfaces；Second inner ring surface 13；
14 first roller grooves；First internal tooth 15；
16 connecting portions；161 screws；
2 second outer shrouds；21 second outer ring surfaces；
22 the 3rd inner ring surfaces；Second roller groove 23；
24 second internal tooths；25 connecting portions；
251 screws；3 first rolling members；
31 rollers；4 inner ring；
41 the 3rd outer ring surfaces；42 the 4th inner ring surfaces；
43 external tooths；44 site of engagement；
5 harmonic devices；51st, 51 ' cam；
511 cam surfaces；512 fulcrums；
513 major axis；52 second rolling members；
521 rollers；522 balls；
53 retaining rings；531 location divisions；
10 motors；101 rotating shafts；
20 power transmission shafts.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be with It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, Figure 2 and Figure 3, deceleration transmission bearing of the invention, its first preferred embodiment include one first Outer shroud 1, one second outer shroud 2, multiple first rolling members 3, an inner ring 4 and a harmonic device 5 (wave generator), wherein：
First outer shroud 1 is a torus, and it has one first outer ring surface 11, one first inner ring surface 12 and one second inner ring Face 13, the diameter of the first inner ring surface 12 are more than the diameter of the second inner ring surface 13, the first outer shroud 1 is formed as the endoporus of step shape. And first inner ring surface 12 be arranged with the first roller of circle groove 14, and the second inner ring surface 13 is provided with the first internal tooth 15.In addition, first Outer shroud 1 is also provided with being connected to motor or the connecting portion 16 of other components, and connecting portion 16 can multiple be arranged at end face Screw 161.
Second outer shroud 2 is also a torus, and it is rotatably arranged among the first inner ring surface 12 of the first outer shroud 1 (such as Shown in Fig. 3 and Fig. 4), the axial width of shortening deceleration transmission bearing.Second outer shroud 2 has one second outer ring surface 21 and one the 3rd Inner ring surface 22, the second outer ring surface 21 are arranged with one second roller groove 23, and the 3rd inner ring surface is provided with the second internal tooth 24, the second internal tooth 24 have that the number of teeth is poor with the number of teeth of the first internal tooth 15, when the sum of the second internal tooth 24 of citing is 60 tooth, the sum of the first internal tooth 15 Can be 62 teeth, it has the number of teeth of 2 teeth poor (specific number of teeth difference is depending on speed reducing ratio manufacture demand).In addition, the second outer shroud 2 is also It can be provided with and be connected to power transmission shaft or the connecting portion 25 of other components, connecting portion 25 can be multiple screws for being arranged at end face 251。
The spread configuration of first rolling member 3 (as shown in Figure 4) between the first roller groove 14 and the second roller groove 23, Make connection and spacing component of first rolling member 3 as the first outer shroud 1 and the second outer shroud 2, prevent its axial separation each other, together When can also reduce mutual frictional force when the first outer shroud 1 and the second outer shroud 2 rotate.
The inner ring 4 is the becket of elastically deformable, and it is rotatably arranged among the first outer shroud 1 and the second outer shroud 2 (such as Shown in Fig. 3 and Fig. 4), its width is equal to the overall width of the first internal tooth 15 and the second internal tooth 24, its with one the 3rd outer ring surface 41 and One the 4th inner ring surface 42, the 3rd outer ring surface 41 are provided with external tooth 43, the number of teeth of the number of teeth of external tooth 43 and the second internal tooth 24 first compared with It is identical in good embodiment.
The harmonic device 5 is also known as waveform generator (wave generator), and it is rotatably arranged among inner ring 4 (such as Shown in Fig. 4), in the first preferred embodiment, it is supported on the 4th inner ring surface 42 of inner ring 4, and it is relative to push inner ring 4 at least two The external tooth of site of engagement 44 be engaged in the first internal tooth 15 and the second internal tooth 24 (as shown in Figure 5), therefore when harmonic device 5 persistently turns When dynamic, even if the second outer shroud 2 makees underdrive.
As shown in Fig. 1 and Fig. 4, above-mentioned first rolling member 3 is preferably roller 31 or ball, and the first rolling member 3 is embodied as During the roller 31 of cylinder, the first roller groove 14 and the second roller groove 23 are V-shaped groove, and roller 31 is interlocked in 90 degree Be arranged between the first roller groove 14 and the second roller groove 23 (as shown in Figure 3), thus can be to the first outer shroud 1 and second outside Ring 2, which plays, to be prevented from being axially disengaging, and enhancement is socketed steadiness each other, while is had radially and axial supporting role, and reduces by the The purpose of one outer shroud 1 and the second 2 power rubbing against one another of outer shroud.
As shown in Figure 1, Figure 2 and shown in Fig. 4, the above-mentioned harmonic device 5 is preferably comprised a cam 51 and multiple second rolling members 52. The cam 51 can be a major axis and the positive oval cam of a short axle, have a cam surface 511 around it.And second rolling Part 52 is preferably a row or two row's spread configurations in cam surface 511, and the second rolling member 52 is resisted against in the 4th of inner ring 4 Anchor ring 42, therefore when cam 51 rotates, the synchronous rolling of the second rolling member 52 can be made, as shown in figure 5, and then pushing inner ring 4 and making The external tooth of at least two relative site of engagement 44 is engaged in the first internal tooth 15 and the second internal tooth 24.
Again in the lump as shown in Figure 1, Figure 2 and shown in Fig. 4, the above-mentioned harmonic device 5 preferably also includes a retaining ring 53, retaining ring 53 Both sides have multiple location divisions 531, and retaining ring 53 is sheathed on to the cam surface 511 of cam 51, so just can be by the second rolling member 52 are arranged between the location division 531 of retaining ring 53, make the spread configuration of the second rolling member 52 in cam surface 511.And second rolling Moving part 52 is preferably roller 521 or ball 522 (as shown in Figure 6).
In addition, as shown in Figures 7 and 8, in the first preferred embodiment, the harmonic device 5 can preferably be changed to include one convex Wheel 51 and multiple 3rd rolling members 54.The cam 51 can be a major axis and the oval cam of a short axle, around cam 51 Provided with multiple axial fulcrums 512.3rd rolling member 54 is bearing 541, such as ball bearing or needle bearing etc., makes the 3rd Rolling member 54 is incorporated on fulcrum 512, and is resisted against the 4th inner ring surface 42 of inner ring 4, can so be reached identical function, be pushed away The external tooth for squeezing the relative site of engagement 44 of inner ring 4 at least two is engaged in the first internal tooth 15 and the second internal tooth 24.
As shown in figure 9, the present invention is in use, the rotating shaft 101 of motor 10 can be connected to the cam 51 of harmonic device 5, and make First outer shroud 1 is incorporated into the flange end or other fixing components of motor 10 using the screw 161 of its connecting portion 16, makes outside first Ring 1 is as the fixing end that can not be rotated.And the second outer shroud 2 can then utilize the screw 251 of its connecting portion 25 to be incorporated into power transmission shaft 20 (force-output shaft) or other components, the second outer shroud 2 is set to be used as output turning end.Again in the lump as shown in Figures 10 and 11, when harmonic device 5 Cam 51 when driving rotation by motor 10, the major axis 513 of cam 51 persistently rotates and pushes the engagement for the external tooth 43 for making inner ring 4 Position 44 changes, thus makes the underdrive of the second outer shroud 2, and cam 51 often rotates 1 circle, because the first internal tooth 15 and the second internal tooth 24 There is the principle of number of teeth difference, the second outer shroud 2 is rotated 1 tooth pitch, so reach very high speed reducing ratio.
Again as shown in figure 12, it is the second preferred embodiment of the invention, its inner ring 4 can be used instead as rigid (rigid) gold Belong to ring, and be rotatably arranged in the first outer shroud 1 and the second outer shroud 2.And the preferred embodiment of harmonic device 5 includes a cam 51 ' And multiple 3rd rolling members 54, the cam 51 ' are a circular eccentric wheel, the 3rd rolling member 54 is ball, and spread configuration Between the cam surface of cam 51 ' and inner ring 4., when the cam 51 ' of harmonic device 5 rotates, the 3rd can be passed through such as Figure 13 in the lump again Rolling member 54 is resisted against inner ring 4, and the external tooth 43 for pushing a site of engagement 44 of inner ring 4 is engaged in the first internal tooth 15 and the second internal tooth 24, similarly cam 51 ' often rotate 1 circle because the number of teeth difference principle of the first internal tooth 15 and the second internal tooth 24, only make the second outer shroud 2 1 tooth pitch is rotated, so can equally reach very high speed reducing ratio.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention Enclose not limited to this.The equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention Protection domain within.Protection scope of the present invention is defined by claims.

Claims (3)

  1. A kind of 1. deceleration transmission bearing, it is characterised in that including：
    One first outer shroud, it has one first outer ring surface, one first inner ring surface and one second inner ring surface, first inner ring surface it is straight Footpath is more than the diameter of second inner ring surface, and first inner ring surface is arranged with circle the first roller groove, and second inner ring surface is provided with First internal tooth；
    One second outer shroud, it is rotationally embedded among the first inner ring surface of first outer shroud, its have one second outer ring surface and One the 3rd inner ring surface, second outer ring surface are arranged with one second roller groove, and the 3rd inner ring surface is provided with the second internal tooth, and this second The number of teeth of internal tooth and first internal tooth has the number of teeth poor；
    Multiple first rolling members, the first rolling member spread configuration is in the first roller groove and second outer shroud of first outer shroud The second roller groove between；
    One inner ring, it is rotatably arranged in first outer shroud and second outer shroud, and it has one the 3rd outer ring surface and one the 4th Inner ring surface, the 3rd outer ring surface are provided with external tooth；And
    One harmonic device, it is rotatably arranged among the inner ring, and it is supported on the 4th inner ring surface of the inner ring, pushes the inner ring The external tooth of an at least site of engagement is engaged in first internal tooth and second internal tooth, and the harmonic device includes one second cam and multiple 3rd rolling member, multiple fulcrums is provided with around second cam, the 3rd rolling member is incorporated on the fulcrum, and is resisted against this 4th inner ring surface of inner ring；
    Wherein, the inner ring is rigid becket, the harmonic device push a site of engagement of the inner ring external tooth be engaged in this One internal tooth and second internal tooth, first rolling member are roller, and the first roller groove and the second roller groove are V-shaped groove, Respectively the roller is staggered between the first roller groove and the second roller groove in 90 degree.
  2. 2. deceleration transmission bearing according to claim 1, it is characterised in that wherein, the 3rd rolling member is bearing.
  3. 3. deceleration transmission bearing according to claim 2, it is characterised in that wherein, the bearing is ball bearing or needle roller Bearing.
CN201310330704.0A 2013-08-01 2013-08-01 Deceleration transmission bearing Active CN104343894B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201310330704.0A CN104343894B (en) 2013-08-01 2013-08-01 Deceleration transmission bearing
TW103101749A TWI572788B (en) 2013-08-01 2014-01-17 Speed-reduction transmission bearing
TW103201020U TWM482664U (en) 2013-08-01 2014-01-17 Deceleration transmission bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310330704.0A CN104343894B (en) 2013-08-01 2013-08-01 Deceleration transmission bearing

Publications (2)

Publication Number Publication Date
CN104343894A CN104343894A (en) 2015-02-11
CN104343894B true CN104343894B (en) 2018-02-27

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ID=51724728

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310330704.0A Active CN104343894B (en) 2013-08-01 2013-08-01 Deceleration transmission bearing

Country Status (2)

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CN (1) CN104343894B (en)
TW (2) TWM482664U (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI548823B (en) * 2015-04-14 2016-09-11 台達電子工業股份有限公司 Deceleration machine
CN106151449A (en) * 2015-04-15 2016-11-23 浙江宁波智动机器人技术有限公司 A kind of dust-proof harmonic speed reducer
TWI572796B (en) * 2015-05-15 2017-03-01 Harmonic gear differential gearbox
TWI550215B (en) * 2015-06-09 2016-09-21 上銀科技股份有限公司 Speed change device
CN107842584A (en) * 2016-09-18 2018-03-27 金洲科技有限公司 Driving gear
CN106640958B (en) * 2016-11-09 2021-07-13 上海斐赛轴承科技有限公司 Novel flexible gear and wave generator assembly for harmonic gear transmission device
WO2018086195A1 (en) * 2016-11-09 2018-05-17 上海斐赛轴承科技有限公司 Novel flexspline and wave generator assembly for harmonic gear drive apparatus
CN110864091A (en) * 2018-08-27 2020-03-06 金洲科技有限公司 Push type speed changing device
TWI694218B (en) * 2018-12-10 2020-05-21 鎂亞精密股份有限公司 Reduced speed bearing
CN111288077A (en) * 2018-12-10 2020-06-16 镁亚精密股份有限公司 Speed reduction transmission bearing

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6269711B1 (en) * 1998-08-12 2001-08-07 Teijin Seiki Company Limited Transmission device using flexible gear
CN1576645A (en) * 2003-07-16 2005-02-09 住友重机械工业株式会社 Speed reducer
TWM447941U (en) * 2012-07-25 2013-03-01 Ama Tech Corp Tansmission structure of harmonizing transmission device
CN203374738U (en) * 2013-08-01 2014-01-01 李茂碷 Reduction drive bearing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6269711B1 (en) * 1998-08-12 2001-08-07 Teijin Seiki Company Limited Transmission device using flexible gear
CN1576645A (en) * 2003-07-16 2005-02-09 住友重机械工业株式会社 Speed reducer
TWM447941U (en) * 2012-07-25 2013-03-01 Ama Tech Corp Tansmission structure of harmonizing transmission device
CN203374738U (en) * 2013-08-01 2014-01-01 李茂碷 Reduction drive bearing

Also Published As

Publication number Publication date
TWM482664U (en) 2014-07-21
TWI572788B (en) 2017-03-01
TW201506272A (en) 2015-02-16
CN104343894A (en) 2015-02-11

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Effective date of registration: 20200810

Address after: Taiwan New Taipei City Tucheng Chinese tadatsugu Road No. 101 5 floor

Patentee after: International Seiko Co.,Ltd.

Address before: Taiwan New Taipei City Tucheng Chinese tadatsugu Road No. 101 5 floor

Patentee before: Li Maochu