JPH0452646U - - Google Patents
Info
- Publication number
- JPH0452646U JPH0452646U JP9589690U JP9589690U JPH0452646U JP H0452646 U JPH0452646 U JP H0452646U JP 9589690 U JP9589690 U JP 9589690U JP 9589690 U JP9589690 U JP 9589690U JP H0452646 U JPH0452646 U JP H0452646U
- Authority
- JP
- Japan
- Prior art keywords
- attached
- hollow shaft
- shaft member
- axial direction
- shaft
- 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.)
- Granted
Links
- 230000002265 prevention Effects 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Transmission Devices (AREA)
Description
第１図は本考案を適用したリニアアクチユエー
タの概略縦断面図、第２図は第１図の変形例を示
す部分断面図である。
符号の説明、４……ねじ送り機構、５……軸部
材、５１……雄ねじ部、６……スプライン軸（中
空軸部材）、６１……雌ねじ部、７……ボールス
プライン、７３……リテーナ、７３ａ……リテー
ナの元端側端面、７３ｂ……リテーナの先端側端
面、９……抜け防止部、９１，９２……リング、
９３……Ｏリング（緩衝材）、１０……リング部
材。
FIG. 1 is a schematic vertical sectional view of a linear actuator to which the present invention is applied, and FIG. 2 is a partial sectional view showing a modification of FIG. 1. Explanation of symbols, 4...Screw feeding mechanism, 5...Shaft member, 51...Male thread part, 6...Spline shaft (hollow shaft member), 61...Female thread part, 7...Ball spline, 73...Retainer , 73a... End face on the proximal end side of the retainer, 73b... End face on the distal end side of the retainer, 9... Fallout prevention part, 91, 92... Ring,
93...O ring (buffer material), 10...Ring member.
Claims (1)
前記雄ねじ部材に螺合した雌ねじ部が内周面に形
成された中空軸部材とを有し、この中空軸部材が
ボールスプラインによつて軸線方向に摺動可能に
支持されて、前記軸部材および中空軸部材をそれ
らの軸線を中心として相対回転させることにより
、これらの間に軸線方向の相対直線運動を発生さ
せるようになつており、 前記中空軸部材の元端側には、前記ボールスプ
ラインを構成するリテーナの元端側端面に当接可
能な軸抜け防止部材が取付けられており、前記リ
テーナの先端側を包摂するねじ送り機構における
ハウジングの部分には、このリテーナの先端側端
面が当接可能な当接部材が取付けられていること
を特徴とするねじ送り機構の軸抜け防止構造。 (2) 請求項第１項において、前記軸抜け防止部
材は、緩衝材を挟み軸線方向に配列した二つのリ
ング部材から構成されており、中空軸部材の元端
側にあるリング部材はこの中空軸部材の外周に固
着されており、他方のリング部材は軸線方向に移
動可能に中空軸部材の外周に取付けられているこ
とを特徴とするねじ送り機構の軸抜け防止構造。[Claims for Utility Model Registration] (1) A shaft member with a male thread formed on its outer circumferential surface;
A female threaded portion screwed into the male threaded member has a hollow shaft member formed on an inner circumferential surface, and this hollow shaft member is slidably supported in the axial direction by a ball spline, and the shaft member and By rotating the hollow shaft members relative to each other about their axes, relative linear motion in the axial direction is generated between them, and the ball spline is attached to the base end side of the hollow shaft member. A shaft fall-off prevention member that can come into contact with the end face of the retainer is attached, and the end face of the retainer comes into contact with the housing part of the screw feeding mechanism that includes the front end of the retainer. A structure for preventing shaft slippage of a screw feed mechanism, characterized in that a contact member that can be attached is attached to the screw feed mechanism. (2) In claim 1, the shaft fall-off prevention member is composed of two ring members arranged in the axial direction with a cushioning material in between, and the ring member on the base end side of the hollow shaft member is attached to the hollow shaft member. A structure for preventing shaft slippage of a screw feeding mechanism, characterized in that the ring member is fixed to the outer periphery of a shaft member, and the other ring member is attached to the outer periphery of the hollow shaft member so as to be movable in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9589690U JP2502297Y2 (en) | 1990-09-11 | 1990-09-11 | Shaft feed prevention mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9589690U JP2502297Y2 (en) | 1990-09-11 | 1990-09-11 | Shaft feed prevention mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0452646U true JPH0452646U (en) | 1992-05-06 |
| JP2502297Y2 JP2502297Y2 (en) | 1996-06-19 |
Family
ID=31834996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9589690U Expired - Fee Related JP2502297Y2 (en) | 1990-09-11 | 1990-09-11 | Shaft feed prevention mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2502297Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5605875B1 (en) * | 2013-10-09 | 2014-10-15 | 英治 川西 | Rolling nut device |
-
1990
- 1990-09-11 JP JP9589690U patent/JP2502297Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2502297Y2 (en) | 1996-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0343156U (en) | ||
| JPH0452646U (en) | ||
| JPH0482425U (en) | ||
| JPH03110214U (en) | ||
| JPH0322155U (en) | ||
| JPS6272647U (en) | ||
| JPH02122212U (en) | ||
| JPS6250329U (en) | ||
| JPH0436151U (en) | ||
| JPH031733U (en) | ||
| JPH026846U (en) | ||
| JPS6218427U (en) | ||
| JPH0414854U (en) | ||
| JPH0431320U (en) | ||
| JPS63184217U (en) | ||
| JPH0355920U (en) | ||
| JPH0270835U (en) | ||
| JPS6337857U (en) | ||
| JPH02283952A (en) | Mechanism for converting rotary motion to linear motion | |
| JPH0322837U (en) | ||
| JPH0449257U (en) | ||
| JPH03119613U (en) | ||
| JPH0452016U (en) | ||
| JPH0482424U (en) | ||
| JPS6329608U (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |