JPS56147959A - Rack gear used for pole of elevator - Google Patents
Rack gear used for pole of elevatorInfo
- Publication number
- JPS56147959A JPS56147959A JP5194180A JP5194180A JPS56147959A JP S56147959 A JPS56147959 A JP S56147959A JP 5194180 A JP5194180 A JP 5194180A JP 5194180 A JP5194180 A JP 5194180A JP S56147959 A JPS56147959 A JP S56147959A
- Authority
- JP
- Japan
- Prior art keywords
- rack gear
- elevator
- pole
- iron plate
- tooth
- 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
Landscapes
- Gears, Cams (AREA)
Abstract
PURPOSE: To facilitate preparing work of a rack gear used for a pole of an elevator, by forming its tooth-shaped portion from a thick iron plate with the method of autogenous cutting.
CONSTITUTION: An elevator is operated in such a manner that a driving pin wheel 7 is turned by the driving operation of a motor 3 to up-down move an elevator mount 2 with the meshing of a rack gear 20, provided on a pole 1, to the wheel 7. At this time, the rack gear 20 is formed in such means that a thick iron plate 40 having the same thickness as the width of the rack gear is molten and cut by the method of gas cutting or the like into a toothed part 31 at a position of length corresponding to height of the toothed part from one side edge 32. In this case, for the tooth form if symmetrical to the left and right, when the iron plate 40 is cut along a straight line 32' at a position of length corresponding to height of the tooth from a toothed part 31a at an opposite side to a cut rack gear portion 30, another rack gear portion 30' of the same shape can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5194180A JPS56147959A (en) | 1980-04-20 | 1980-04-20 | Rack gear used for pole of elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5194180A JPS56147959A (en) | 1980-04-20 | 1980-04-20 | Rack gear used for pole of elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56147959A true JPS56147959A (en) | 1981-11-17 |
Family
ID=12900887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5194180A Pending JPS56147959A (en) | 1980-04-20 | 1980-04-20 | Rack gear used for pole of elevator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56147959A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003176820A (en) * | 2001-12-11 | 2003-06-27 | Nippon Thompson Co Ltd | Finite rectilinear guide unit equipped with retainer slippage preventing mechanism |
| CN103075477A (en) * | 2012-12-28 | 2013-05-01 | 方裕华 | Pin wheel track driving device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3718052A (en) * | 1971-04-05 | 1973-02-27 | Milwaukee Gear Co | Gear structure and method of making the same |
-
1980
- 1980-04-20 JP JP5194180A patent/JPS56147959A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3718052A (en) * | 1971-04-05 | 1973-02-27 | Milwaukee Gear Co | Gear structure and method of making the same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003176820A (en) * | 2001-12-11 | 2003-06-27 | Nippon Thompson Co Ltd | Finite rectilinear guide unit equipped with retainer slippage preventing mechanism |
| CN103075477A (en) * | 2012-12-28 | 2013-05-01 | 方裕华 | Pin wheel track driving device |
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