KR101793519B1 - Flexible engagement gear device - Google Patents
Flexible engagement gear device Download PDFInfo
- Publication number
- KR101793519B1 KR101793519B1 KR1020150189690A KR20150189690A KR101793519B1 KR 101793519 B1 KR101793519 B1 KR 101793519B1 KR 1020150189690 A KR1020150189690 A KR 1020150189690A KR 20150189690 A KR20150189690 A KR 20150189690A KR 101793519 B1 KR101793519 B1 KR 101793519B1
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- KR
- South Korea
- Prior art keywords
- retainer
- vibrator
- rolling
- gear
- rolling member
- Prior art date
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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
- 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
- F16C19/56—Systems consisting of a plurality of bearings with rolling friction in which the rolling bodies of one bearing differ in diameter from those of another
-
- 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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
-
- 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
-
- 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
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/08—Profiling
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/52—Pulleys or friction discs of adjustable construction
- F16H55/56—Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable
-
- 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
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
- F16H2001/327—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear with orbital gear sets comprising an internally toothed ring gear
Abstract
Provided is a bending gear type gear device capable of suppressing torque ripple while suppressing damage or deformation of a retainer.
The bending engagement type gear device includes a vibrator, a first external gear and a second external gear which are flexibly deformed by the vibrator, a first vibrator bearing disposed between the first external gear and the vibrator, And a second vibrator bearing disposed between the external gear and the vibrator. The first vibrator bearing has a plurality of first rolling members 22a and a first retainer 23a for holding the first rolling member 22a. The second vibrator bearing has a plurality of second rolling members 22b and a second retainer 23b for holding the second rolling member 22b. The first retainer 23a and the second retainer 23b are formed separately. The number of the first rolling members 22a is different from the number of the second rolling members 22b.
Description
The present application claims priority based on Japanese Patent Application No. 2015-019700 filed on February 3, 2015. The entire contents of which are incorporated herein by reference.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bending gear.
BACKGROUND ART [0002] As a gear device that is small in size and light in weight and capable of achieving a high reduction ratio, a warping gear type gear device is known. This device has a structure in which an external gear is radially bent through a rigid internal gear and a flexible external gear disposed inside the internal gear and a bearing so as to partly engage with the internal gear at two places, And a vibrating body for moving the vibrating body in a direction. The bearing includes a plurality of rolling elements and a retainer for holding the plurality of rolling elements. In the related art, for example, a bending-mesh type gear device as described in Patent Document 1 has been proposed.
In the conventional bending gear type gear device disclosed in Patent Document 1, since the two rows of rolling elements are disposed in a zigzag shape, the distance in the circumferential direction of the adjacent rolling elements is relatively short when viewed from the direction of the rotation axis. Therefore, when the engagement load due to engagement with the internal gear is caught by the external gear, bending of the external gear in the radial direction is suppressed between adjacent rolling elements. As a result, the vibrator rotates relatively smoothly, and torque ripple can be prevented from being caused.
In this bending gear type gear device, since the rolling elements are arranged in a zigzag shape, the number of rolling elements existing in the engagement area at any moment is different for each row. Therefore, the number of rolling elements revolving while rotating is different for each row. Conversely, the number of rolling elements pushed by the retainer is different for each row. Thereby, a speed difference may occur in the revolution speed of the rolling elements and the retainer for each column. Since the retainers for retaining the rolling elements of the respective rows are combined (integrally formed), an unreasonable load is applied to the engagement portion between the retainer and the retainer due to the difference in speed between the revolving speeds. This leads to damage or deformation of the retainer.
SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object of the present invention is to provide a bending gear capable of suppressing torque ripple while suppressing damage or deformation of a retainer.
According to an aspect of the present invention, there is provided a bending gear device according to one aspect of the present invention, which includes a vibrator, a first external gear and a second external gear that are flexibly deformed by the vibrator, And a second vibrator bearing disposed between the second external gear and the vibrator, wherein the first vibrator bearing includes a plurality of first vibrator bearings, And a first retainer for retaining the first rolling member. The second vibrator bearing has a plurality of second rolling members and a second retainer for holding the second rolling member. The first retainer and the second retainer are configured separately, and the number of the first rolling members and the number of the second rolling members are different.
Another aspect of the present invention is also a bending gear. This apparatus includes a vibrator, a first external gear and a second external gear that are flexibly deformed by the vibrator, a first vibrator bearing disposed between the first external gear and the vibrator, The first vibrator bearing has a plurality of first rolling elements and a first retainer for holding the first rolling element. The first vibrator bearing has a second vibrator bearing disposed between the vibrators. The second vibrator bearing has a plurality of second rolling members and a second retainer for holding the second rolling member. The first retainer has a plurality of first pockets for retaining the first rolling member and at least a part of the plurality of first pockets has a width in the circumferential direction Or at least some of the pillars between the first pocket and the first pocket are different in circumferential width from the other pillars.
Still another aspect of the present invention is a bending gear type gear device. This apparatus includes a vibrator, a first external gear and a second external gear that are flexibly deformed by the vibrator, a first vibrator bearing disposed between the first external gear and the vibrator, The first vibrator bearing includes a first inner ring, a plurality of first rolling members, and a first rolling member holding member for holding the first rolling member. 1 retainer, and a first outer ring. The second vibrator bearing has a second inner ring, a plurality of second rolling members, a second retainer for holding the second rolling member, and a second outer ring. The first retainer and the second retainer are formed separately from each other, and the gap between the first inner ring and the first rolling member, the clearance between the first rolling member and the first outer ring, And the sum of the clearance between the second inner ring and the second rolling member and the clearance between the second rolling member and the second outer ring are different from each other.
Still another aspect of the present invention is also a bending gear device. This apparatus includes a vibrator, a first external gear and a second external gear that are flexibly deformed by the vibrator, a first vibrator bearing disposed between the first external gear and the vibrator, The first vibrator bearing has a plurality of first rolling elements and a first retainer for holding the first rolling element. The first vibrator bearing has a second vibrator bearing disposed between the vibrators. The second vibrator bearing has a plurality of second rolling members and a second retainer for holding the second rolling member. The first retainer and the second retainer are configured separately, and the first retainer has a plurality of first pockets for retaining the first rolling member. The second retainer has a plurality of second pockets for holding the second rolling member. The circumferential width of the first pocket and the circumferential width of the second pocket are different.
According to these aspects, the first retainer and the second retainer are formed separately, and the first rolling member and the second rolling member are less likely to be in the same position in the circumferential direction.
It should be noted, however, that any combination of the above-described components or that the constituent elements and expressions of the present invention are replaced with each other among methods, apparatuses, systems, and the like is also effective as an aspect of the present invention.
According to the present invention, it is possible to provide a warping gear type gear device capable of suppressing torque ripple while suppressing damage or deformation of the retainer.
1 is a cross-sectional view showing a warping gear type gear device according to a first embodiment.
In Fig. 2, Figs. 2 (a) and 2 (b) are a cross-sectional view taken along the line AA and a cross-sectional view taken along the line BB in Fig.
3 is a side view of the retainer and rolling elements viewed from the radial direction.
Fig. 4 is a view of the vibrator bearing viewed from the direction of the rotating shaft. Fig.
5 (a) and 5 (b) are cross-sectional views showing the periphery of a vibrator bearing of a warping gear type gear apparatus according to a second embodiment.
6 is a side view of the retainer and the rolling member viewed from the radial direction.
7 (a) and 7 (b) are cross-sectional views showing the periphery of a vibrator bearing of a bending-gear type gear device according to a third embodiment.
8 is a side view of the retainer and the rolling member viewed from the radial direction.
9 (a) and 9 (b) are cross-sectional views showing the periphery of a vibrator bearing of a warping gear type gear apparatus according to a fourth embodiment.
10 (a) and 10 (b) are cross-sectional views showing the periphery of a vibrator bearing of a bending gear type gear apparatus according to a fifth embodiment.
11 is a side view of the retainer and the rolling member viewed from the radial direction.
Hereinafter, the same or equivalent constituent elements or members shown in the drawings are denoted by the same reference numerals, and redundant explanations are appropriately omitted. In the drawings, the dimensions of the members are appropriately enlarged or reduced for easy understanding. In the drawings, some of the members which are not important when explaining the embodiment are omitted.
The bending gear type gearing according to the embodiment is suitably used as a deceleration mechanism for taking out the high-speed rotation output of the motor as the low-speed rotation output. For example, as a speed reducer of an actuator used in a joint portion of a robot.
(First Embodiment)
1 is a cross-sectional view showing a warping gear
The vibrating
The
The
The second
The
The
The first
The
The
Thereafter, the
Here, as one technique for improving the load capacity of the vibrator bearing 20, there is a technique in which the diameter of the rolling member 22 is increased. It is necessary to increase the circumferential width of the pocket 25 by enlarging the rolling member 22. Therefore, if the diameter of the rolling member 22 is increased by keeping the number of the rolling members 22, The width in the circumferential direction of the retainer 23 becomes narrow, and the strength of the retainer 23 becomes weak. Therefore, when the diameter of the rolling member 22 is increased, the number of the rolling members 22 is reduced.
When the number of rolling elements 22 is reduced, the distance between the contact points P of the rolling member 22 and the
4B, when the first rolling
In order to prevent the first rolling
Therefore, in the present embodiment, the number of the
The operation of the above-described flexural-
When the vibrating
Reduction ratio = (the dimension of the first
= (100-102) / 100
= -1 / 50
Since the second
The number of the
(Second Embodiment)
The main difference between the warping gear type gear apparatus according to the second embodiment and the warping gear type gear apparatus according to the first embodiment is the structure of the vibrator bearing.
5 (a) and 5 (b) are cross-sectional views showing the periphery of a vibrator bearing 20 of a warping gear type gear apparatus according to a second embodiment. Figs. 5 (a) and 5 (b) correspond to Figs. 2 (a) and 2 (b), respectively. 6 is a side view of the retainer 23 and the rolling member 22 viewed from the radial direction. Fig. 6 corresponds to Fig.
The first vibrator bearing 20a and the second vibrator bearing 20b are formed so that the number of the
In the present embodiment, the
Since the
The bending-gear type gearing device according to the present embodiment exhibits the same operational effects as those exhibited by the bending-gear
The
(Third Embodiment)
The main difference between the warping gear type gear apparatus according to the third embodiment and the warping gear type gear apparatus according to the second embodiment is the structure of the retainer.
Figs. 7 (a) and 7 (b) are cross-sectional views showing the periphery of the vibrator bearing 20 of the bending gear type gear apparatus according to the third embodiment. Fig. Figs. 7 (a) and 7 (b) correspond to Figs. 2 (a) and 2 (b), respectively. 8 is a side view of the retainer 23 and the rolling member 22 viewed from the radial direction. Fig. 8 corresponds to Fig.
The first vibrator bearing 20a and the second vibrator bearing 20b are formed so that the number of the
In the present embodiment, the
Since the
The bending-gear type gearing device according to the present embodiment has the same function and effect as those of the bending-gear type gearing device according to the second embodiment.
According to the warping gear device of the present embodiment, the
(Fourth Embodiment)
The main difference between the flexural-meshing gear device according to the fourth embodiment and the flexural-meshing-type gear device according to the first embodiment is the structure of the
Figs. 9 (a) and 9 (b) are cross-sectional views showing the periphery of a vibrating
The first vibrator bearing 20a and the second vibrator bearing 20b are formed so that the number of the
The first vibrator bearing 20a and the second vibrator bearing 20b are in a state before being fitted to the outside of the vibrating
When the first internal clearance is increased, the outer diameter of the
The outer diameter of the
The
In the present embodiment, the first vibrator bearing 20a and the second vibrator bearing 20b are formed so that the first internal clearance becomes smaller than the second internal clearance. Therefore, the number of the
According to the flexural-mesh type gear apparatus of the present embodiment, the same operational effects as those of the flexural-mesh
(Fifth Embodiment)
The main difference between the flexural-meshing gear device according to the fifth embodiment and the flexural-meshing-type gear device according to the second embodiment is the structure of the vibrator bearing.
10 (a) and 10 (b) are cross-sectional views showing the periphery of a vibrator bearing 20 of a warping gear type gear apparatus according to a fifth embodiment. 10 (a) and 10 (b) correspond to FIGS. 2 (a) and 2 (b), respectively. 11 is a side view of the retainer 23 and the rolling member 22 viewed from the radial direction. Fig. 11 corresponds to Fig.
The first vibrator bearing 20a and the second vibrator bearing 20b are arranged in such a manner that the number of the
The first vibrator bearing 20a and the second vibrator bearing 20b are arranged such that the circumferential width of the
The bending-gear type gearing device according to the present embodiment exhibits the same operational effects as the bending-and-mesh type gearing device according to the second embodiment.
The configuration and operation of the flexural-mesh type gear apparatus according to the embodiment have been described above. It is to be understood by those skilled in the art that these embodiments are illustrative and that various combinations of combinations of the components are possible and that such modifications are also within the scope of the present invention.
(Modified Example 1)
In the first to fifth embodiments, the case where the rolling body is a cylindrical roller having a substantially cylindrical shape has been described, but the present invention is not limited thereto. The rolling elements may be, for example, balls or conical rollers.
(Modified example 2)
In the second embodiment, the retainer 23 is formed such that at least a part of the pockets 25 in the circumferential direction is different from the circumferential width of the other pockets 25, and the widths of all the pillar portions 28 in the circumferential direction are the same The case where it has been described has been described. In the third embodiment, the retainer 23 is arranged such that all the pockets 25 have the same circumferential width and at least a part of the columnar portion 28 has a circumferential width different from that of the other columnar portion 28 in the circumferential direction And the width is different from that of the first embodiment. However, the present invention is not limited to this, and the retainer 23 may be configured such that at least a part of the pockets 25 in the circumferential direction is different from the circumferential width of the other pockets 25, And the width may be different from the circumferential width of the other column portion 28. [ That is, the second embodiment and the third embodiment may be combined.
Any combination of the above-described embodiments and modifications is also useful as an embodiment of the present invention. The new embodiments resulting from the combination combine the effects of each of the embodiments and variants to be combined.
10 Vibrations
20a first vibrator bearing
20b Second vibrator bearing
21 inner wheel member
22a First rolling member
22b Second rolling member
23a first retainer
23b second retainer
24a First outer ring member
24b The second outer ring member
25a first pocket
25b second pocket
28a and 28b,
30 shout gear
40 internal gear
100 bending gear
Claims (6)
The first vibrator bearing has a plurality of first rolling members and a first retainer for holding the first rolling member,
The second vibrator bearing has a plurality of second rolling members and a second retainer for holding the second rolling member,
The first retainer and the second retainer are configured separately,
The number of the first rolling members and the number of the second rolling members differ,
Wherein only the first vibrator bearing is disposed as a vibrator bearing between the first external gear and the vibrator, and between the second external gear and the vibrator, as the vibrator bearing, the second vibrator bearing Wherein the first and second gears are disposed only in the first direction.
The first vibrator bearing has a plurality of first rolling members and a first retainer for holding the first rolling member,
The second vibrator bearing has a plurality of second rolling members and a second retainer for holding the second rolling member,
The first retainer and the second retainer are configured separately,
Wherein the first retainer has a plurality of first pockets for retaining the first rolling member, at least a portion of the plurality of first pockets being different in circumferential width from the other first pockets, At least a part of the pillars between the pockets is different in circumferential width from the other pillars,
The second retainer has a plurality of second pockets for holding the second rolling member, the circumferential widths of all the second pockets and the circumferential widths of all the pillars are the same,
Wherein only the first vibrator bearing is disposed as a vibrator bearing between the first external gear and the vibrator, and between the second external gear and the vibrator, as the vibrator bearing, the second vibrator bearing Wherein the first and second gears are disposed only in the first direction.
Wherein the first retainer has a circumferential width equal to that of all the first pockets and at least a part of the pawls has a different circumferential width from the other pawls.
The first vibrator bearing has a plurality of first rolling members and a first retainer for holding the first rolling member,
The second vibrator bearing has a plurality of second rolling members and a second retainer for holding the second rolling member,
The first retainer and the second retainer are configured separately,
Wherein the first retainer has a plurality of first pockets for retaining the first rolling member,
The second retainer has a plurality of second pockets for holding the second rolling member,
A circumferential width of the first pocket is different from a circumferential width of the second pocket,
Wherein only the first vibrator bearing is disposed as a vibrator bearing between the first external gear and the vibrator, and between the second external gear and the vibrator, a second vibrator bearing Wherein the first and second gears are disposed only in the first direction.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015019700A JP6338538B2 (en) | 2015-02-03 | 2015-02-03 | Bending gear system |
JPJP-P-2015-019700 | 2015-02-03 |
Publications (2)
Publication Number | Publication Date |
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KR20160095605A KR20160095605A (en) | 2016-08-11 |
KR101793519B1 true KR101793519B1 (en) | 2017-11-03 |
Family
ID=56410147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020150189690A KR101793519B1 (en) | 2015-02-03 | 2015-12-30 | Flexible engagement gear device |
Country Status (4)
Country | Link |
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JP (1) | JP6338538B2 (en) |
KR (1) | KR101793519B1 (en) |
CN (1) | CN105840740B (en) |
DE (1) | DE102016101165B4 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE112018005332B4 (en) * | 2017-09-20 | 2023-06-22 | Sumitomo Heavy Industries, Ltd. | BENDING-ENGAGEMENT TYPE GEAR DEVICE |
JP7145601B2 (en) * | 2017-10-23 | 2022-10-03 | 住友重機械工業株式会社 | flexure meshing gearbox |
JP7321317B1 (en) * | 2022-03-18 | 2023-08-04 | 株式会社リケン | Wave generator for strain wave gearing and strain wave gearing |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004190765A (en) * | 2002-12-10 | 2004-07-08 | Nsk Ltd | Rolling bearing |
JP2006316935A (en) * | 2005-05-13 | 2006-11-24 | Ntn Corp | Ultra-thin type rolling bearing, and cage for ultra-thin type rolling bearing |
JP2007224953A (en) * | 2006-02-21 | 2007-09-06 | Nsk Ltd | Split-type rolling bearing |
JP2013181636A (en) * | 2012-03-02 | 2013-09-12 | Sumitomo Heavy Ind Ltd | Flexible meshing gear device |
JP2014081017A (en) * | 2012-10-15 | 2014-05-08 | Sumitomo Heavy Ind Ltd | Gear device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60143244A (en) | 1983-12-29 | 1985-07-29 | Mitsubishi Electric Corp | Harmonic gear device |
FR2883941B1 (en) * | 2005-04-04 | 2008-09-12 | Skf Ab | CAGE DEVICE FOR BEARING, BEARING AND HARMONIC REDUCER |
JP5312364B2 (en) * | 2010-02-03 | 2013-10-09 | 住友重機械工業株式会社 | Bending gear system |
JP6030981B2 (en) * | 2013-03-27 | 2016-11-24 | 株式会社三共製作所 | Wave gear device |
JP2015019700A (en) | 2013-07-16 | 2015-02-02 | サミー株式会社 | Game machine |
-
2015
- 2015-02-03 JP JP2015019700A patent/JP6338538B2/en active Active
- 2015-12-28 CN CN201511018587.XA patent/CN105840740B/en active Active
- 2015-12-30 KR KR1020150189690A patent/KR101793519B1/en active IP Right Grant
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2016
- 2016-01-22 DE DE102016101165.7A patent/DE102016101165B4/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004190765A (en) * | 2002-12-10 | 2004-07-08 | Nsk Ltd | Rolling bearing |
JP2006316935A (en) * | 2005-05-13 | 2006-11-24 | Ntn Corp | Ultra-thin type rolling bearing, and cage for ultra-thin type rolling bearing |
JP2007224953A (en) * | 2006-02-21 | 2007-09-06 | Nsk Ltd | Split-type rolling bearing |
JP2013181636A (en) * | 2012-03-02 | 2013-09-12 | Sumitomo Heavy Ind Ltd | Flexible meshing gear device |
JP2014081017A (en) * | 2012-10-15 | 2014-05-08 | Sumitomo Heavy Ind Ltd | Gear device |
Also Published As
Publication number | Publication date |
---|---|
JP6338538B2 (en) | 2018-06-06 |
DE102016101165B4 (en) | 2019-10-10 |
CN105840740A (en) | 2016-08-10 |
KR20160095605A (en) | 2016-08-11 |
DE102016101165A1 (en) | 2016-08-04 |
JP2016142370A (en) | 2016-08-08 |
CN105840740B (en) | 2018-12-14 |
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