JPS52132536A - Automatic door opening/closing device - Google Patents
Automatic door opening/closing deviceInfo
- Publication number
- JPS52132536A JPS52132536A JP4972176A JP4972176A JPS52132536A JP S52132536 A JPS52132536 A JP S52132536A JP 4972176 A JP4972176 A JP 4972176A JP 4972176 A JP4972176 A JP 4972176A JP S52132536 A JPS52132536 A JP S52132536A
- Authority
- JP
- Japan
- Prior art keywords
- door opening
- closing device
- automatic door
- door
- closing
- 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
Links
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
PURPOSE: To provide a marking device whose adjustment is extremely simple and convenient by providing plural supersonic wave senders/receivers near a door and by selecting the passing of detected objects by the time width of the reflected wave, and by controlling automatically the opening and closing of the door.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4972176A JPS52132536A (en) | 1976-04-30 | 1976-04-30 | Automatic door opening/closing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4972176A JPS52132536A (en) | 1976-04-30 | 1976-04-30 | Automatic door opening/closing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52132536A true JPS52132536A (en) | 1977-11-07 |
JPS5724477B2 JPS5724477B2 (en) | 1982-05-24 |
Family
ID=12839045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4972176A Granted JPS52132536A (en) | 1976-04-30 | 1976-04-30 | Automatic door opening/closing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52132536A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4945249U (en) * | 1972-07-25 | 1974-04-20 | ||
JPS50153739U (en) * | 1974-06-03 | 1975-12-20 |
-
1976
- 1976-04-30 JP JP4972176A patent/JPS52132536A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4945249U (en) * | 1972-07-25 | 1974-04-20 | ||
JPS50153739U (en) * | 1974-06-03 | 1975-12-20 |
Also Published As
Publication number | Publication date |
---|---|
JPS5724477B2 (en) | 1982-05-24 |
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