WO2008123451A1 - Roller screw - Google Patents
Roller screw Download PDFInfo
- Publication number
- WO2008123451A1 WO2008123451A1 PCT/JP2008/056183 JP2008056183W WO2008123451A1 WO 2008123451 A1 WO2008123451 A1 WO 2008123451A1 JP 2008056183 W JP2008056183 W JP 2008056183W WO 2008123451 A1 WO2008123451 A1 WO 2008123451A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roller
- circulating pipe
- passage
- direction turning
- twisted
- Prior art date
Links
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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
-
- 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
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
- F16H2025/2271—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers with means for guiding circulating rollers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Pinball Game Machines (AREA)
Abstract
Intended is to provide a roller screw, which is freed from any undercut even if a circulating pipe having a twisted roller return passage of a rectangular section is halved. In order to circulate a roller, there are provided a direction turning passage constituting part (9) and a circulating pipe (8). A direction turning passage is formed in the direction turning passage constituting part (9), and a roller returning passage (11) is formed in the circulating pipe (8). This circulating pipe (8) is constituted by jointing a pair of split pieces (18a and 18b), which are halved along the apexes (11a and 11b) of the diagonal lines of the roller returning passage (11) having a section shaped rectangular and twisted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009509232A JP5226671B2 (en) | 2007-03-30 | 2008-03-28 | Roller screw |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-095046 | 2007-03-30 | ||
JP2007095046 | 2007-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008123451A1 true WO2008123451A1 (en) | 2008-10-16 |
Family
ID=39830936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/056183 WO2008123451A1 (en) | 2007-03-30 | 2008-03-28 | Roller screw |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP5226671B2 (en) |
WO (1) | WO2008123451A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012077247A1 (en) * | 2010-12-08 | 2012-06-14 | 日本精工株式会社 | Ball screw device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1085086A (en) * | 1965-03-24 | 1967-09-27 | Textron Inc | Antifriction screw and nut assembly |
JPH0439354U (en) * | 1990-07-30 | 1992-04-03 | ||
JP2000161459A (en) * | 1998-11-20 | 2000-06-16 | Hiroshi Teramachi | Cross roller screw device |
JP2006118649A (en) * | 2004-10-22 | 2006-05-11 | Thk Co Ltd | Roller screw |
JP2006125578A (en) * | 2004-10-29 | 2006-05-18 | Nsk Ltd | Ball screw |
-
2008
- 2008-03-28 WO PCT/JP2008/056183 patent/WO2008123451A1/en active Application Filing
- 2008-03-28 JP JP2009509232A patent/JP5226671B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1085086A (en) * | 1965-03-24 | 1967-09-27 | Textron Inc | Antifriction screw and nut assembly |
JPH0439354U (en) * | 1990-07-30 | 1992-04-03 | ||
JP2000161459A (en) * | 1998-11-20 | 2000-06-16 | Hiroshi Teramachi | Cross roller screw device |
JP2006118649A (en) * | 2004-10-22 | 2006-05-11 | Thk Co Ltd | Roller screw |
JP2006125578A (en) * | 2004-10-29 | 2006-05-18 | Nsk Ltd | Ball screw |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012077247A1 (en) * | 2010-12-08 | 2012-06-14 | 日本精工株式会社 | Ball screw device |
JP5500268B2 (en) * | 2010-12-08 | 2014-05-21 | 日本精工株式会社 | Ball screw device |
US9003911B2 (en) | 2010-12-08 | 2015-04-14 | Nsk Ltd. | Ball screw device |
Also Published As
Publication number | Publication date |
---|---|
JPWO2008123451A1 (en) | 2010-07-15 |
JP5226671B2 (en) | 2013-07-03 |
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