WO2005066511A1 - ボールスプライン - Google Patents
ボールスプライン Download PDFInfo
- Publication number
- WO2005066511A1 WO2005066511A1 PCT/JP2004/016923 JP2004016923W WO2005066511A1 WO 2005066511 A1 WO2005066511 A1 WO 2005066511A1 JP 2004016923 W JP2004016923 W JP 2004016923W WO 2005066511 A1 WO2005066511 A1 WO 2005066511A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ball
- spline
- spline shaft
- torque transmission
- rolling
- Prior art date
Links
Classifications
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- 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
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/068—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track
- F16C29/0692—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a guide rail or track of non-circular cross-section, e.g. with grooves or protrusions, i.e. the linear bearing is suited to transmit torque
- F16C29/0695—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with the bearing body fully encircling the guide rail or track the bearing body encircles a guide rail or track of non-circular cross-section, e.g. with grooves or protrusions, i.e. the linear bearing is suited to transmit torque with balls
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- 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
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
- F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
- F16C29/0609—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the ends of the bearing body or carriage where the rolling elements change direction, e.g. end caps
-
- 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
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/38—Ball cages
- F16C33/3825—Ball cages formed as a flexible belt, e.g. spacers connected by a thin film
Definitions
- the present invention relates to a spline shaft and a spline nut which are relatively linearly combined via a large number of balls, and are used for a linear guide portion in a machine tool or various industrial machines, a torque transmission portion in an industrial robot, and the like.
- the present invention relates to a ball spline used, and more particularly to a technique for efficiently transmitting torque between the spline shaft and a spline nut.
- Patent Document 1 JP-A-58-137616
- Patent Document 2 Japanese Utility Model Application Laid-Open No. 61-179414
- ball spline those disclosed in Japanese Patent Application Laid-Open No. 58-137616 and Japanese Utility Model Application Laid-Open No. 61-179414 have been known.
- These ball splines include a spline shaft having a plurality of ball rolling surfaces extending in the longitudinal direction, and an infinite circulation path for the balls, which is assembled to the spline shaft through a number of balls.
- the spline nut is configured so that the spline nut can freely move around the spline shaft along the longitudinal direction with the infinite circulation of the ball.
- the feature of the ball spline is that not only the spline nut can freely move linearly along the spline shaft, but also the torque between the spline shaft and the spline nut in the circumferential direction of the spline shaft. It is a point that can be transmitted.
- the ball spline disclosed in Japanese Utility Model Laid-Open Publication No. 61-179414 discloses a spline shaft having a substantially cylindrical cross section.
- a pair of ball rolling surfaces is provided at three places in the circumferential direction along the longitudinal direction, and a pair of ball rolling surfaces is provided at the base of each of the ridges so as to sandwich the ridges on both sides.
- the cross-sectional shape of the spline shaft itself is made substantially rectangular, and wide grooves along the longitudinal direction are formed on both side surfaces thereof. And a pair of ball rolling surfaces are provided at the corners of these grooves.
- the spline shaft is used by supporting both shaft ends with another structure, it is necessary to perform terminal processing according to the supporting form, and the cross-sectional shape of the spline shaft is not a cylindrical shape but a rectangular shape. If the shape is used, there is a problem that it takes time and effort to process the end of the shaft end and the manufacturing cost increases.
- the ball spline disclosed in Japanese Utility Model Laid-Open Publication No. 61-179414 relates to a ball row rolling on a pair of ball rolling surfaces provided on both sides of a ridge of a spline shaft. Since the contact structure of the ball row with the ball rolling surface has a contact structure similar to that of the front combination of the angular contact ball bearing (DF type), when torque is transmitted between the spline nut and the spline shaft, In addition, when transmitting a large rotational torque that easily displaces the spline nut in the circumferential direction of the spline shaft, the rigidity between the spline shaft and the spline nut may be insufficient.
- DF type angular contact ball bearing
- a ball spline disclosed in Japanese Patent Application Laid-Open No. 58-137616 four rows of balls rolling on a ball rolling surface formed on a spline shaft are used. Since the contact structure on the rolling surface is similar to that of the back combination (DB type) of an angular ball bearing, the contact structure between the spline shaft and the spline nut is different from that of JP-A-61-179414. Can secure sufficient rigidity.
- a spline shaft with a substantially rectangular cross section is the best in comparison with a spline shaft with a circular cross section. If the large diameters are the same, the cross-sectional area must be small, and the second moment of area is reduced by that much, which is disadvantageous for the bending rigidity of the spline shaft.
- the present invention has been made in view of such problems, and it is an object of the present invention to facilitate the processing of a spline shaft by a drawing process and reduce the manufacturing cost. It is to provide a possible ball spline.
- Another object of the present invention is to be able to sufficiently increase the rigidity between the spline shaft and the spline nut during transmission of rotational torque, and to sufficiently secure the bending rigidity of the spline shaft. It is to provide a possible ball spline.
- the ball spline of the present invention has a substantially cylindrical shape having a spline shaft formed with a plurality of ball rolling surfaces along a longitudinal direction, and a hollow hole into which the spline shaft is inserted. And a spline nut, which has a load rolling surface facing the ball rolling surface of the spline shaft on the inner peripheral surface of the hollow hole to be pressed and is mounted on the spline shaft via a number of balls.
- the spline shaft has a substantially circular cross section.
- a plurality of torque transmission grooves along the longitudinal direction are formed around the spline shaft at equal intervals, and the side surface of the land portion sandwiched between the torque transmission grooves, that is, both side portions in the width direction of each torque transmission groove. Are formed with the ball rolling surfaces. Further, the distance between the pair of ball rows rolling on both sides of the land portion is set to be larger than the distance between the pair of ball rows rolling on both sides of the torque transmission groove. I have.
- the torque transmission groove formed around the spline shaft may have two or more grooves.
- the load capacity of the radial load acting on the lance and spline nut When the inner nut is made uniform along the circumferential direction, it is preferable that the number of the torque transmission grooves is three in view of the strength of the viewpoint.
- the spline nut may be of an infinite stroke type having an infinite circulation path for balls, or may be of a finite stroke type having no infinite circulation path. Regardless of the type, if the ball has a certain force to prevent the contact between balls and suppress the fluctuation of the sliding resistance of the spline nut and to prevent the generation of noise, the ball can be brought into the specified It is preferable to arrange them in a line at intervals. It is desirable that the connecting belt is made of a flexible material such as resin, but when the spline nut is of the finite stroke type, a material such as a metal plate that does not have flexibility is used. It can be made with
- the size of the spline nut is reduced. From the standpoint of view, the spline nut is located on both sides of each torque transmission groove. With regard to a pair of infinite circulation paths, one endless circulation path penetrates the other endless circulation path so that the two endless circulation paths intersect each other so that these endless circulation paths can be formed compactly with respect to the spline nut. It is preferred that
- the ball is positioned in a tangent plane to the outer peripheral surface of the infinite circulation path S spline shaft. I like to run! /.
- the direction of contact of the ball with the spline shaft may be in any direction.
- the ball spline of the present invention configured as described above, when the spline shaft is manufactured by drawing, the reduction rate of the cross-sectional area of the shaft before and after the processing is reduced.
- the powerful terminal processing can be performed efficiently, and the manufacturing cost is reduced. Becomes possible.
- the cross section of the spline shaft into a substantially circular shape, it is possible to obtain a large second moment of area while suppressing an increase in diameter, and to avoid increasing the size of the ball spline while avoiding an increase in the size of the ball spline. Bending rigidity can be sufficiently ensured.
- the contact structure of the ball with the spline shaft has a structure similar to a DB type angular ball bearing, so that the spline shaft and the spline nut at the time of transmitting the rotational torque are connected. It is possible to sufficiently increase the rigidity between them.
- FIG. 1 is a perspective view showing a first embodiment of a ball spline to which the present invention is applied.
- FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1.
- FIG. 3 is a sectional view taken along line III-III of FIG. 2.
- FIG. 4 is a plan view and a side view showing a ball connector in which balls are arranged.
- FIG. 5 is a front sectional view showing a second embodiment of the ball spline to which the present invention is applied.
- FIG. 6 is a front sectional view showing a third embodiment of a ball spline to which the present invention is applied.
- FIG. 7 is a front sectional view showing a fourth embodiment of the ball spline to which the present invention is applied.
- FIG. 8 is a front sectional view showing a ball spline according to a fifth embodiment of the present invention. Explanation of symbols
- the ball spline 1 has a spline shaft 10 formed with a plurality of ball rolling surfaces 11a and 1 lb formed along the longitudinal direction, and this is possible.
- the spline shaft 10 is formed in a substantially circular cross section, and has a longitudinally extending outer peripheral surface.
- Three torque transmission grooves 12 are formed along the direction. These torque transmission grooves 12 are arranged so as to divide the outer peripheral surface of the spline shaft 10 into three equal parts, and each torque transmission groove 12 is provided so that the outer peripheral surface of the spline shaft 10 is cut out in an arc shape. Te ru. A force in which the land portion 13 exists so as to be sandwiched between the torque transmission grooves 12 adjacent to each other on the outer peripheral surface of the spline shaft 10 .Comparing the width of the land portion 13 with the width of the torque transmission groove 12, The width of 13 is set larger than the width of torque transmission groove 12.
- the spline shaft 10 is formed to have a substantially circular cross section as described above, if the maximum diameter is the same, the cross sectional area can be set larger than that of a spline shaft having a substantially square cross section.
- the second moment of area of the spline shaft 10 can be increased by that much, and the bending stiffness of the spline shaft 10 that is strong can be increased.
- the groove walls stand substantially perpendicularly to the outer peripheral surface of the spline shaft 10, and the ball rolling surfaces 11a, 11a, l ib are formed respectively. That is, a pair of ball rolling surfaces 11a and lib are formed at positions on both sides of each torque transmission groove 12, and three pairs of ball rolling surfaces are provided on the spline shaft 10 of this embodiment.
- the surface 11a, l ib is formed.
- the cross section of each of the ball rolling surfaces 11a and lib is formed into a curved surface having a curvature slightly larger than the curvature of the spherical surface of the ball rolling thereon.
- the hollow hole 21 formed in the spline nut 20 substantially matches the cross-sectional shape of the spline shaft 10, and the spline shaft 10 is inserted through the hollow hole 21 with a slight gap left.
- the spline nut 20 has load rolling surfaces 21a, 21b facing the ball rolling surfaces 11a, lib of the spline shaft 10, and these ball rolling surfaces 11a, lib and the load rolling surfaces 21a, 21b are formed.
- a large number of balls 30 are arranged between them, and are configured to roll while applying a load between the spline shaft 10 and the spline nut 20.
- one of the balls 30 rolling on a pair of ball rolling surfaces 11a and lib formed on both sides of the torque transmission groove 12 of the spline shaft 10 rolls on one ball rolling surface 11a.
- the rolling ball applies a counterclockwise rotation torque acting on the spline nut, and the ball rolling on the other ball rolling surface 1 lb applies a clockwise rotation torque.
- the ball 30 that applies a clockwise rotation torque and the ball 30 that applies a counterclockwise rotation torque face each other across the land portion 13 of the spline shaft 10!
- the intersection point P of the line n is located outside the spline shaft 10 in the radial direction from the line m connecting the centers of these balls. That is, the row of balls located on both sides of the land portion 13 of the spline shaft 10 sandwiches the land portion 13 so as to project outward in the radial direction of the spline shaft 10.
- the rigidity between the shaft 10 and the spline nut 20 is maintained high, and the displacement of the spline nut 20 when a radial load or a rotational torque is applied can be suppressed to a small value.
- the spline nut 20 has a ball return passage 22 in which the ball 30 rolls without load.
- the ball return passage 22 is formed in parallel with the load area, and is located on the normal line n of contact between the ball 30 and the ball rolling surfaces 11a and lib. Further, in order to feed the ball 30 that has rolled in the load area into the ball return path 22, the load area and the ball return path 22 are connected by an arc-shaped direction change path 23.
- the turning path 23 in this embodiment is shown in FIG. Although it is formed in an arc shape having a substantially constant curvature as described above, the shape is not limited to this, and may include, for example, a straight line portion.
- the spline nut 20 is composed of a nut body 20a and a pair of end caps 20b mounted on both ends of the nut body 20a in the axial direction.
- 21a, 21b and the ball return passage 22 are formed in the nut body 20a, and the direction change passage 23 is formed in the end cap 20b.
- the balls 30 are not directly filled in the infinite circulation path, but are arranged in a line on a connecting body 40 made of a synthetic resin having flexibility. It is inserted into the endless circulation path together with the connecting body belt 40.
- the connecting body belt 40 is composed of a plurality of disc-shaped spacers 41 interposed between the balls 30 adjacent to each other, and a flat belt-shaped belt member 42 connecting the disc-shaped spacers 41.
- Each ball 30 is rotatably held by a pair of spacers 41, 41 adjacent to each other in the arrangement direction. Therefore, even if the infinite circulation path of the spline nut 20 is extracted from the connecting member belt 40, the ball 30 does not fall off from the connecting member belt 40, so that the ball 30 can be easily handled.
- the connecting body belt 40 can freely bend only in a direction perpendicular to the surface of the belt member 42 as shown in FIG. Since the direction change path 23 is positioned so as to overlap with the contact normal n between the ball 30 and the ball rolling surfaces 11a and lib, the connecting body belt 40 bends without difficulty in the infinite circulation path. Can be circulated.
- the radius of curvature of the direction change path 23 connecting the load area and the ball return path 22 is set to be large.
- the load area and the ball return path are formed parallel to each other.
- the direction of contact of the ball 30 with the ball rolling surface 11a, 1 lb of the spline shaft 10 is perpendicular to the radial direction of the spline shaft 10, in other words, the outer circumferential surface of the spline shaft 10.
- the direction change path 23 is located so that the ball 30 and the contact normal n between the ball rolling surface 11a and lib overlap, so that the load area and the ball return Even if the distance from the passage 22 is set to be large, the outer diameter of the spline nut 20 can be reduced to the extent that the ball return passage 23 does not protrude significantly outward in the radial direction of the spline nut 20. Has become.
- the infinite circulation path of the ball 30 that applies the right-hand torque of the spline nut 20 and the infinite circulation path of the ball 30 that applies the left-hand torque There is a concern that the turning path 23 may interfere with the circulation path.
- the formation position of one endless circulation path is shifted in the axial direction of the spline nut 20 with respect to the formation position of the other endless circulation path, and one endless circulation path is shifted to the other endless circulation path.
- the direction change paths 23 constituting the infinite circulation path are prevented from interfering with each other. That is, as shown in FIG.
- the spline nut 20 when the spline nut 20 is observed from its axial direction, the turning path 23 of the ball 30 that applies clockwise torque intersects with the turning path 23 of the ball 30 that applies counterclockwise torque. 3, the spline nut 20 is formed at a position deviated in the axial direction of the spline nut 20 so as not to interfere with each other. This also allows the ball spline 1 of this embodiment to reduce the size of the spline nut 20.
- a nut main body 20a forming a part of the spline nut 20 ball holding portions 24, 25 made of synthetic resin are formed on both sides of the load rolling surfaces 21a, 21b.
- the ball holding portions 24 and 25 prevent the balls 30 located in the load area from falling off the spline nut 20 when the spline nut 20 is also removed from the spline shaft 10.
- the inner peripheral surface of the ball return passage 22 has a passage forming portion 26 made of synthetic resin.
- a guide groove for guiding the belt member 42 of the connecting body belt 40 is formed in the portion 26 along the axial direction, and the connecting body belt 40 circulates along a constant path without meandering in an infinite circulation path. Do as you do.
- the synthetic resin ball holding portions 24, 25 and the passage forming portion 26 are formed by insert molding using the metal block portion 27 on which the load rolling surfaces 21a, 21b are formed as a core.
- an end face forming section 28 for mounting the end cap 20b is provided on the axial end face of the metal block section 27 by a synthetic resin, and the end face forming section 28 is formed of the ball. They are connected by holding parts 24, 25 and a passage forming part 26. Therefore, the ball holding portions 24, 25, the passage forming portion 26, and the end face forming portion 28 are integrally formed so as to surround the metal block portion 27, and are firmly integrated with the metal block portion 27.
- FIG. 5 shows a second embodiment of a ball spline to which the present invention is applied.
- the shape of the torque transmission groove 12 formed in the spline shaft 10 is different from that of the first embodiment, and the depth of the torque transmission groove 12 to be applied is small. ing. That is, in the present invention, the shape of the torque transmission groove 12 of the spline shaft 10 can be arbitrarily changed. If the direction of contact of the ball 30 with the spline shaft 10 and the number of rows of ball rows are the same, the smaller the size of the torque transmission groove 12, the higher the rigidity of the spline shaft 10 against a radial load. Therefore, the ball spline 2 of the second embodiment has higher rigidity against a radial load than the ball spline 1 of the first embodiment. Note that the same reference numerals as those in the first embodiment are used in the figure.
- FIG. 6 shows a third embodiment of a ball spline to which the present invention is applied.
- the number of the torque transmission grooves 12 formed in the spline shaft 10 is two, which is different from the ball spline 1 of the first embodiment only in this point. That is, two torque transmission grooves 12 are formed on the outer peripheral surface of the spline shaft 10 in directions opposite to each other, and a pair of bolts are formed at both ends in the width direction of the torque transmission grooves 12.
- the rolling surface 11a, l ib is formed.
- the contact direction of the ball 30 with respect to the ball rolling surfaces 11, l ib is the same as in the first embodiment.
- the processing efficiency by the drawn cable is further improved.
- the infinite circulation path of the ball 30 that applies the right-handed torque and the infinite circulation path of the ball 30 that applies the left-handed torque intersect each other.
- the size of the spline nut 20 can be increased, a pair of adjacent ones can be used as in the fourth embodiment shown in FIG. 7 and the fifth embodiment shown in FIG.
- the ball return paths 22, 22 of the endless circulation paths 50, 50 may be adjacent to each other at a position where the torque transmission groove 12 of the spline shaft 10 is bisected. In this way, the adjacent infinite circulation paths 50, 50 should not cross each other!
- the formation position of one endless circulation path 50 is set in the axial direction of the spline nut 20 with respect to the formation position of the other endless circulation path 50.
- the axial length of the spline nut 20 can be reduced as compared with the ball spline 1 of the first embodiment, which does not need to be shifted.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112004002558.3T DE112004002558B4 (de) | 2003-12-26 | 2004-11-15 | Kugelumlaufspindel |
US10/583,411 US8167493B2 (en) | 2003-12-26 | 2004-11-15 | Ball spline |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-434600 | 2003-12-26 | ||
JP2003434600A JP4562390B2 (ja) | 2003-12-26 | 2003-12-26 | ボールスプライン |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005066511A1 true WO2005066511A1 (ja) | 2005-07-21 |
Family
ID=34746893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/016923 WO2005066511A1 (ja) | 2003-12-26 | 2004-11-15 | ボールスプライン |
Country Status (5)
Country | Link |
---|---|
US (1) | US8167493B2 (ja) |
JP (1) | JP4562390B2 (ja) |
CN (1) | CN100420865C (ja) |
DE (1) | DE112004002558B4 (ja) |
WO (1) | WO2005066511A1 (ja) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009068658A (ja) * | 2007-09-14 | 2009-04-02 | Thk Co Ltd | 運動案内装置 |
US8328422B2 (en) * | 2009-01-19 | 2012-12-11 | Hiwin Technologies Corp. | Component for linear guideway and method for making the same |
KR101510395B1 (ko) | 2009-01-20 | 2015-04-13 | 삼성테크윈 주식회사 | 고속 활동성을 갖는 부품실장기용 헤드 |
US20110138949A1 (en) * | 2009-12-14 | 2011-06-16 | Hamilton Sundstrand Corporation | Linear Actuator with Ball Bearing Spline |
CN102278369B (zh) * | 2010-06-08 | 2016-02-17 | 新疆金风科技股份有限公司 | 重载滚动花键副 |
JP5189631B2 (ja) * | 2010-09-29 | 2013-04-24 | 日本トムソン株式会社 | 回転機構付きボールスプライン |
JP5646519B2 (ja) * | 2012-01-13 | 2014-12-24 | Thk株式会社 | 運動案内装置 |
CN103707171A (zh) * | 2012-09-28 | 2014-04-09 | 全球传动科技股份有限公司 | 滚珠花键组外筒内珠沟的研磨加工方法 |
JP5977137B2 (ja) * | 2012-10-04 | 2016-08-24 | ヤマハ発動機株式会社 | 回転軸およびこの回転軸を備える産業用ロボット |
US9091301B2 (en) * | 2014-01-02 | 2015-07-28 | Hiwin Technologies Corp. | Deflecting device for ball spline device |
KR102441131B1 (ko) * | 2020-05-06 | 2022-09-08 | (주)원에스티 | 보강부쉬부를 가지는 볼스플라인 |
CN114635917A (zh) * | 2022-02-14 | 2022-06-17 | 西安华欧精密机械有限责任公司 | 一种双循环式滚珠导向键 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3143867A (en) * | 1960-06-15 | 1964-08-11 | Anderson | Anti-backlash slip joint |
JPS5324937A (en) * | 1976-08-18 | 1978-03-08 | Hiroshi Teramachi | Infinitely sliding ball spline |
JPH06241228A (ja) * | 1993-02-17 | 1994-08-30 | Enomoto:Kk | 直動機械要素 |
JPH10196652A (ja) * | 1997-12-01 | 1998-07-31 | Thk Kk | 転動体連結体 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2908152A (en) * | 1958-12-12 | 1959-10-13 | Anderson | Anti-friction slip joint |
JPS5928773B2 (ja) * | 1982-02-12 | 1984-07-16 | 博 寺町 | 無限摺動用ボ−ルスプライン軸受 |
JPS61179414A (ja) * | 1985-02-04 | 1986-08-12 | Mitsubishi Electric Corp | レチクル |
JPS636507Y2 (ja) | 1985-04-30 | 1988-02-24 | ||
JPS63140111A (ja) | 1986-12-03 | 1988-06-11 | Nippon Thompson Co Ltd | 駆動装置付きボ−ルスプライン軸受 |
FR2642123B1 (fr) * | 1989-01-25 | 1991-05-10 | Lecomte Marc | Guide lineaire de precision |
JP3533031B2 (ja) * | 1996-02-23 | 2004-05-31 | Thk株式会社 | ボールスプラインユニットおよびボールスプラインユニットの外筒成形方法 |
EP1251287B1 (en) * | 1996-05-13 | 2006-04-26 | Thk Co. Ltd. | Linear roller guide device |
JP3243415B2 (ja) * | 1996-06-27 | 2002-01-07 | テイエチケー株式会社 | 摺動案内装置及びその有端転動体チェーン |
-
2003
- 2003-12-26 JP JP2003434600A patent/JP4562390B2/ja not_active Expired - Lifetime
-
2004
- 2004-11-15 CN CNB2004800391584A patent/CN100420865C/zh active Active
- 2004-11-15 US US10/583,411 patent/US8167493B2/en active Active
- 2004-11-15 DE DE112004002558.3T patent/DE112004002558B4/de active Active
- 2004-11-15 WO PCT/JP2004/016923 patent/WO2005066511A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3143867A (en) * | 1960-06-15 | 1964-08-11 | Anderson | Anti-backlash slip joint |
JPS5324937A (en) * | 1976-08-18 | 1978-03-08 | Hiroshi Teramachi | Infinitely sliding ball spline |
JPH06241228A (ja) * | 1993-02-17 | 1994-08-30 | Enomoto:Kk | 直動機械要素 |
JPH10196652A (ja) * | 1997-12-01 | 1998-07-31 | Thk Kk | 転動体連結体 |
Also Published As
Publication number | Publication date |
---|---|
CN1902407A (zh) | 2007-01-24 |
JP4562390B2 (ja) | 2010-10-13 |
JP2005188720A (ja) | 2005-07-14 |
DE112004002558T5 (de) | 2006-11-02 |
CN100420865C (zh) | 2008-09-24 |
US8167493B2 (en) | 2012-05-01 |
US20070223846A1 (en) | 2007-09-27 |
DE112004002558B4 (de) | 2022-02-03 |
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