JPS56112331A - Motor driven tension balancer - Google Patents
Motor driven tension balancerInfo
- Publication number
- JPS56112331A JPS56112331A JP1440780A JP1440780A JPS56112331A JP S56112331 A JPS56112331 A JP S56112331A JP 1440780 A JP1440780 A JP 1440780A JP 1440780 A JP1440780 A JP 1440780A JP S56112331 A JPS56112331 A JP S56112331A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- line
- tensility
- case
- revolution
- 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)
Abstract
PURPOSE: To improve the function of an automatic adjustment of a streetcar line tensility by a spring type tension balancer so that, even in case of an expansion or a contraction of said line due to a change in a temperature and the like, the said tensility may be adjusted without being restricted by a flexion and length of a spring as well as a force exerted on the spring may be maintained constant.
CONSTITUTION: In case a streetcar line expands, a spring retaining board 11 screwed to a screw rod section 2a of an adjusting shaft 2, a knob 2c of which is connected with one end of said line, is moved to the left by springs 12. This causes a projecting dog 13, installed on the outer rim of the ring retaining board 11, to come into touch with one of the contacts 14a of a limit switch 14 and a motor M makes a normal revolution. The revolution is transmitted to a driving gear 5 through belt 8 and the like, thereby revolving a nut 9. Thus the spring retaining board 11 is transferred to the right along with the nut 9. This transfer action continues until the dog 13 separates from the limit switch 14. In case the streetcar line contracts, its tensility is maintained constant by a reverse revolution of the motor M.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1440780A JPS56112331A (en) | 1980-02-08 | 1980-02-08 | Motor driven tension balancer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1440780A JPS56112331A (en) | 1980-02-08 | 1980-02-08 | Motor driven tension balancer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56112331A true JPS56112331A (en) | 1981-09-04 |
Family
ID=11860188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1440780A Pending JPS56112331A (en) | 1980-02-08 | 1980-02-08 | Motor driven tension balancer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56112331A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888701A (en) * | 2018-12-26 | 2019-06-14 | 金华八达集团有限公司科技信息分公司 | A kind of cable sagging prevention device |
| CN109888704A (en) * | 2018-12-26 | 2019-06-14 | 金华八达集团有限公司科技信息分公司 | A kind of cable sagging prevention device with positioning function |
| CN109888703A (en) * | 2018-12-26 | 2019-06-14 | 金华八达集团有限公司科技信息分公司 | A kind of cable strain insulator device with warning function |
-
1980
- 1980-02-08 JP JP1440780A patent/JPS56112331A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109888701A (en) * | 2018-12-26 | 2019-06-14 | 金华八达集团有限公司科技信息分公司 | A kind of cable sagging prevention device |
| CN109888704A (en) * | 2018-12-26 | 2019-06-14 | 金华八达集团有限公司科技信息分公司 | A kind of cable sagging prevention device with positioning function |
| CN109888703A (en) * | 2018-12-26 | 2019-06-14 | 金华八达集团有限公司科技信息分公司 | A kind of cable strain insulator device with warning function |
| CN109888703B (en) * | 2018-12-26 | 2020-06-05 | 金华八达集团有限公司科技信息分公司 | Cable strain insulator device with alarm function |
| CN109888704B (en) * | 2018-12-26 | 2020-07-24 | 金华八达集团有限公司科技信息分公司 | Cable sag prevention device with positioning function |
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