JPS54141946A - Transmission - Google Patents
TransmissionInfo
- Publication number
- JPS54141946A JPS54141946A JP4953678A JP4953678A JPS54141946A JP S54141946 A JPS54141946 A JP S54141946A JP 4953678 A JP4953678 A JP 4953678A JP 4953678 A JP4953678 A JP 4953678A JP S54141946 A JPS54141946 A JP S54141946A
- Authority
- JP
- Japan
- Prior art keywords
- output shaft
- engagement means
- rotary member
- rotation
- rotor
- 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
- Transmission Devices (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
PURPOSE: To dispense with a conventional electromagnetic brake for a decelerated electric motor, simplify the construction of a transmission and reduce its size and weight, by enabling restraint of rotation of an output shaft when it has been rotated only in a prescribed direction.
CONSTITUTION: When the rotor shaft 3 of the motor is driven counterclockwise, a rotary member 5 is rotated clokwise throught a gear 3a. If an engagement means 5a made of female threads provided on the inside circuimferential surface of the rotary member 5 is twisted leftward, the member 5 is moved in the direction B pending its rotation because the engagement means 5a is engaged with another engagement means 7a made of male threads provided on the output shaft 7. The rotor is thus brought into pressural contact into with a spacer 11 on the major-diameter part 7C of the output shaft 7 to rotate it. When the rotor shaft 3 is driven clockwise, the rotary member 5 is moved in the direction A and brought into pressural contact with a brake plate 15 to rotate the output shaft 17 in the direction opposite to that of the preceding rotation.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4953678A JPS54141946A (en) | 1978-04-25 | 1978-04-25 | Transmission |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4953678A JPS54141946A (en) | 1978-04-25 | 1978-04-25 | Transmission |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54141946A true JPS54141946A (en) | 1979-11-05 |
Family
ID=12833885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4953678A Pending JPS54141946A (en) | 1978-04-25 | 1978-04-25 | Transmission |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54141946A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821057A (en) * | 1981-07-27 | 1983-02-07 | ジ・オロフソン・コ−ポレ−シヨン | Preventive device for damage due to overload of main screw driving machine |
US4635491A (en) * | 1983-08-10 | 1987-01-13 | Fuji Electric Co., Ltd. | Fail-safe motor-driven cylinder for lifting apparatus |
JPH0279157U (en) * | 1988-11-30 | 1990-06-18 |
-
1978
- 1978-04-25 JP JP4953678A patent/JPS54141946A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5821057A (en) * | 1981-07-27 | 1983-02-07 | ジ・オロフソン・コ−ポレ−シヨン | Preventive device for damage due to overload of main screw driving machine |
JPH0320616B2 (en) * | 1981-07-27 | 1991-03-19 | Orofusun Corp Za | |
US4635491A (en) * | 1983-08-10 | 1987-01-13 | Fuji Electric Co., Ltd. | Fail-safe motor-driven cylinder for lifting apparatus |
JPH0279157U (en) * | 1988-11-30 | 1990-06-18 |
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