JPS63171757U - - Google Patents
Info
- Publication number
- JPS63171757U JPS63171757U JP6583987U JP6583987U JPS63171757U JP S63171757 U JPS63171757 U JP S63171757U JP 6583987 U JP6583987 U JP 6583987U JP 6583987 U JP6583987 U JP 6583987U JP S63171757 U JPS63171757 U JP S63171757U
- Authority
- JP
- Japan
- Prior art keywords
- ball groove
- screw shaft
- spiral
- ball
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Transmission Devices (AREA)
Description
図面は本考案の一実施例を示し、第1図はボー
ルねじの部分縦断面図、第2図は第3図の線―
に沿つたシール装置の断面図、第3図は第2図
の左方向から見た側面図、第4図はシール装置を
直線的に展開した展開図である。
1…ねじ軸、2,4…ボール溝、3…ナツト、
5…ボール、8,9…シール装置、16…保持部
材、18…毛。
The drawings show an embodiment of the present invention, in which Fig. 1 is a partial longitudinal cross-sectional view of a ball screw, and Fig. 2 is a cross-sectional view taken along the line of Fig. 3.
3 is a side view taken from the left side of FIG. 2, and FIG. 4 is a linearly expanded view of the sealing device. 1...Screw shaft, 2, 4...Ball groove, 3...Nut,
5... Ball, 8, 9... Seal device, 16... Holding member, 18... Hair.
Claims (1)
ねじ軸へ外嵌可能にして内周面にねじ軸のボール
溝と対応して螺旋状のボール溝を設けたナツトと
、ねじ軸へナツトを外嵌することで形成される両
ボール溝による螺旋状通路内へ回動可能に充填す
る多数のボールと、環形状の保持部材の内周側へ
多数の毛を植設して成しナツトの端部に固定配置
することで螺旋状通路を外部から防塵作用するよ
うにしたシール装置とを具備し、シール装置は保
持部材に植設する毛の足長さを外嵌位置するねじ
軸の外周部におけるボール溝形状に対応して変化
せしめ、毛の先端部により形成される内円周形状
をボール溝の山部へ接触する領域部と谷部へ接触
する領域部とから設けて成るボールねじ。 A screw shaft with a spiral ball groove on the outer circumferential surface,
A nut that can be externally fitted onto a screw shaft and has a spiral ball groove on its inner peripheral surface that corresponds to the ball groove of the screw shaft, and a spiral formed by both ball grooves that are formed by externally fitting the nut onto the screw shaft. A large number of balls are rotatably filled into the spiral passage, and a large number of bristles are planted on the inner circumference of an annular holding member, and the spiral passage is fixed to the end of the nut. The sealing device changes the length of the bristles implanted in the holding member in accordance with the shape of the ball groove on the outer periphery of the screw shaft in which the bristles are fitted. A ball screw in which the inner circumferential shape formed by the tip of the ball groove is provided with a region that contacts the peaks of the ball groove and a region that contacts the valleys of the ball groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6583987U JPS63171757U (en) | 1987-04-30 | 1987-04-30 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6583987U JPS63171757U (en) | 1987-04-30 | 1987-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63171757U true JPS63171757U (en) | 1988-11-08 |
Family
ID=30903287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6583987U Pending JPS63171757U (en) | 1987-04-30 | 1987-04-30 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63171757U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0322155U (en) * | 1989-07-17 | 1991-03-06 | ||
KR100392657B1 (en) * | 1999-11-23 | 2003-07-23 | 주식회사 만도 | Ball-nut sealing ASS'Y of gearing EPS for car |
JP2006118602A (en) * | 2004-10-21 | 2006-05-11 | Kuroda Precision Ind Ltd | Ball screw lubrication seal device |
-
1987
- 1987-04-30 JP JP6583987U patent/JPS63171757U/ja active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0322155U (en) * | 1989-07-17 | 1991-03-06 | ||
KR100392657B1 (en) * | 1999-11-23 | 2003-07-23 | 주식회사 만도 | Ball-nut sealing ASS'Y of gearing EPS for car |
JP2006118602A (en) * | 2004-10-21 | 2006-05-11 | Kuroda Precision Ind Ltd | Ball screw lubrication seal device |
JP4489557B2 (en) * | 2004-10-21 | 2010-06-23 | 黒田精工株式会社 | Ball screw lubrication seal device |