JPH02124352U - - Google Patents

Info

Publication number
JPH02124352U
JPH02124352U JP3260189U JP3260189U JPH02124352U JP H02124352 U JPH02124352 U JP H02124352U JP 3260189 U JP3260189 U JP 3260189U JP 3260189 U JP3260189 U JP 3260189U JP H02124352 U JPH02124352 U JP H02124352U
Authority
JP
Japan
Prior art keywords
stage
drive
hollow screw
screw shaft
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.)
Granted
Application number
JP3260189U
Other languages
Japanese (ja)
Other versions
JPH0611432Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP3260189U priority Critical patent/JPH0611432Y2/en
Publication of JPH02124352U publication Critical patent/JPH02124352U/ja
Application granted granted Critical
Publication of JPH0611432Y2 publication Critical patent/JPH0611432Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図乃至第４図は本考案の３段伸縮の実施例
を示し、第１図は縮少時の断面図、第２図は伸長
時の断面図、第３図は駆動歯の拡大斜視図、第４
図は駆動ねじ軸と第１のナツトの噛合説明図、第
５図は従来例の伸長時断面図である。 １……駆動ねじ軸、４……送りねじ、５ａ，５
ｂ，５ｃ……ナツト、６ａ，６ｂ……中空ねじ筒
、６ｃ……中空筒、８，８ａ，８ｂ，１１，１１
ａ……駆動歯、９，９ａ，９ｂ，１０，１０ａ…
…被動歯、８′，９′……噛合面。 Figures 1 to 4 show an embodiment of three-stage expansion and contraction of the present invention, Figure 1 is a sectional view when contracted, Figure 2 is a sectional view when extended, and Figure 3 is an enlarged perspective view of the drive tooth. Figure, 4th
The figure is an explanatory view of the engagement between the drive screw shaft and the first nut, and FIG. 5 is a sectional view of the conventional example when it is extended. 1... Drive screw shaft, 4... Feed screw, 5a, 5
b, 5c... Nut, 6a, 6b... Hollow screw tube, 6c... Hollow tube, 8, 8a, 8b, 11, 11
a... Drive tooth, 9, 9a, 9b, 10, 10a...
...Driven teeth, 8', 9'...meshing surface.

Claims (1)

【実用新案登録請求の範囲】 (1) 駆動ねじ軸に螺合するナツトに前記ねじ軸
が挿通する第１段の中空ねじ筒を固設し、該第１
段の中空ねじ筒の外周に螺合するナツトに前記第
１段中空ねじ筒が挿通する第２段の中空ねじ筒を
固設して順次中空ねじ筒を多段に挿通し、第（ｎ
―１）段の中空ねじ軸の外周に螺合するナツトに
前記（ｎ―１）の中空ねじ軸が挿通する第ｎ段の
中空筒を固設し、第ｎ段の中空筒の先端部に作動
物体を取付けた送りねじによる多段伸縮駆動装置
において、駆動ねじ軸および夫々の中空ねじ筒の
先端部外周の直径上に軸方向の噛合面を突設した
伸長用駆動歯を設け、前記夫々のナツトの先端部
に前記駆動歯の噛合面に係合する伸長用被動歯を
設けた多段伸縮駆動装置。 (2) 駆動ねじ軸の基端外周および夫々のナツト
後端に形成したフランジ部の前面に縮少用駆動歯
を、夫々のナツトフランジ部の後面に縮少用駆動
歯に噛合する縮少用被動歯を、設けた実用新案登
録請求の範囲第１項記載の送りねじによる多段伸
縮駆動装置。[Claims for Utility Model Registration] (1) A first-stage hollow screw cylinder through which the screw shaft is inserted is fixed to a nut screwed into the drive screw shaft, and
A second stage hollow screw cylinder through which the first stage hollow screw cylinder is inserted is fixed to a nut screwed onto the outer periphery of the hollow screw cylinder of the stage, and the hollow screw cylinders are sequentially inserted in multiple stages.
-1) Fix the hollow tube of the nth stage through which the hollow screw shaft of (n-1) passes through a nut screwed onto the outer periphery of the hollow screw shaft of the stage, and In a multi-stage telescopic drive device using a feed screw to which an operating object is attached, an extension drive tooth with an axial engagement surface protruding on the diameter of the drive screw shaft and the outer periphery of the tip of each hollow screw cylinder is provided, and each of the above-mentioned A multi-stage telescopic drive device comprising an extension driven tooth that engages with the meshing surface of the drive tooth at the tip of the nut. (2) Reduction drive teeth that mesh with the reduction drive teeth on the front surface of the flange formed on the outer periphery of the base end of the drive screw shaft and the rear end of each nut, and the reduction drive teeth on the rear surface of each nut flange. A multi-stage telescopic drive device using a feed screw according to claim 1, which is provided with driven teeth.
JP3260189U 1989-03-24 1989-03-24 Multi-stage telescopic drive device with feed screw Expired - Lifetime JPH0611432Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3260189U JPH0611432Y2 (en) 1989-03-24 1989-03-24 Multi-stage telescopic drive device with feed screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3260189U JPH0611432Y2 (en) 1989-03-24 1989-03-24 Multi-stage telescopic drive device with feed screw

Publications (2)

Publication Number Publication Date
JPH02124352U true JPH02124352U (en) 1990-10-12
JPH0611432Y2 JPH0611432Y2 (en) 1994-03-23

Family

ID=31535653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3260189U Expired - Lifetime JPH0611432Y2 (en) 1989-03-24 1989-03-24 Multi-stage telescopic drive device with feed screw

Country Status (1)

Country Link
JP (1) JPH0611432Y2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009103203A (en) * 2007-10-23 2009-05-14 Hiwin Mikrosystem Corp Drive device for expansion and contraction actuator
JP2011052760A (en) * 2009-09-02 2011-03-17 Yamatake Corp Rotation-linear motion conversion mechanism and actuator
CN106737577A (en) * 2016-12-14 2017-05-31 亿嘉和科技股份有限公司 A kind of spiral expanding mechanism
JP2020505569A (en) * 2017-01-10 2020-02-20 浙江捷昌線性駆動科技股▲フン▼有限公司 Transmission assembly and lifting column

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009103203A (en) * 2007-10-23 2009-05-14 Hiwin Mikrosystem Corp Drive device for expansion and contraction actuator
JP2011052760A (en) * 2009-09-02 2011-03-17 Yamatake Corp Rotation-linear motion conversion mechanism and actuator
CN106737577A (en) * 2016-12-14 2017-05-31 亿嘉和科技股份有限公司 A kind of spiral expanding mechanism
JP2020505569A (en) * 2017-01-10 2020-02-20 浙江捷昌線性駆動科技股▲フン▼有限公司 Transmission assembly and lifting column

Also Published As

Publication number Publication date
JPH0611432Y2 (en) 1994-03-23

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term