JPS5493832A - Automatic door - Google Patents
Automatic doorInfo
- Publication number
- JPS5493832A JPS5493832A JP16020977A JP16020977A JPS5493832A JP S5493832 A JPS5493832 A JP S5493832A JP 16020977 A JP16020977 A JP 16020977A JP 16020977 A JP16020977 A JP 16020977A JP S5493832 A JPS5493832 A JP S5493832A
- Authority
- JP
- Japan
- Prior art keywords
- door
- driving pulley
- disks
- weight
- output 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.)
- Pending
Links
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
PURPOSE: To provide an automatic door, which is arranged such that the effective diameter of a driving pulley is varied with the weight of the door, so as to open and close the door always at a fixed speed independently of the weight of the door.
CONSTITUTION: In transom 1, there is provided a driving pulley 7 fitted on the output shaft 4 of speed-reducing means 3 coupled with motor 2. The driving pulley 7 consists of two disks 5, 6 in the form of a truncated cone and juxtaposed with each other, and at least one of the disks 5 or 6 is arranged to be slidable on the output shaft 4. A drive belt 9 is passed around the driving pulley 7 and a driven pulley 8 associated with the driving pulley 7, and a door 10 is suspended from the drive belt 9. In the above arrangement, door opening and closing speed can be controlled by adjusting the distance between the two disks 5 and 6 to compensate the weight change of door 10.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16020977A JPS5493832A (en) | 1977-12-30 | 1977-12-30 | Automatic door |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16020977A JPS5493832A (en) | 1977-12-30 | 1977-12-30 | Automatic door |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5493832A true JPS5493832A (en) | 1979-07-25 |
Family
ID=15710107
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16020977A Pending JPS5493832A (en) | 1977-12-30 | 1977-12-30 | Automatic door |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5493832A (en) |
-
1977
- 1977-12-30 JP JP16020977A patent/JPS5493832A/en active Pending
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