JPS6414490A - Door switchgear - Google Patents
Door switchgearInfo
- Publication number
- JPS6414490A JPS6414490A JP62169074A JP16907487A JPS6414490A JP S6414490 A JPS6414490 A JP S6414490A JP 62169074 A JP62169074 A JP 62169074A JP 16907487 A JP16907487 A JP 16907487A JP S6414490 A JPS6414490 A JP S6414490A
- Authority
- JP
- Japan
- Prior art keywords
- door
- rotation shaft
- spiral groove
- rotation
- rotating
- 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)
Abstract
PURPOSE: To improve endurance and stabilize door opening and closing by linking a roller of the sliding body at the lower portion of a door to a spiral groove formed on a rotation shaft and opening or closing the door by the rotation of the rotation shaft thereby prohibiting no occurrence of dust from the rotating portions. CONSTITUTION: A door 18 supported in a movable manner through guide rollers at the upper and lower guide rails 14, 16, and a rotation shaft 20 with a spiral groove 28 formed on the peripheral surface are provided, and a slide block 34 having a roller 32 linking to the spiral groove 28 and sliding in the shaft direction by the rotation of the rotation shaft 20 is attached to a lower portion of the door 18. And the rotation shaft 20 is rotated, the roller 32 is rotated on the spiral groove 28 and, by its rotating force, the slide block 34 moves in the direction corresponding to the rotating direction of the rotating shaft 20 and the door 18 can be opened or closed. Also, a plurality of spiral grooves and rollers for the rotation shaft 20 can be provided or a plurality of rollers can be linked to a single spiral groove in the configuration.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62169074A JPH0781455B2 (en) | 1987-07-07 | 1987-07-07 | Scavenger door for heat treatment furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62169074A JPH0781455B2 (en) | 1987-07-07 | 1987-07-07 | Scavenger door for heat treatment furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6414490A true JPS6414490A (en) | 1989-01-18 |
JPH0781455B2 JPH0781455B2 (en) | 1995-08-30 |
Family
ID=15879842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62169074A Expired - Lifetime JPH0781455B2 (en) | 1987-07-07 | 1987-07-07 | Scavenger door for heat treatment furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0781455B2 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS612964U (en) * | 1984-06-11 | 1986-01-09 | パイロツトインキ株式会社 | Tickets with anti-counterfeiting printing |
JPS6219375U (en) * | 1985-07-17 | 1987-02-05 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3909600A (en) * | 1972-06-26 | 1975-09-30 | Cincinnati Milacron Inc | Method and apparatus for controlling an automation along a predetermined path |
EP0092644A1 (en) * | 1982-04-26 | 1983-11-02 | International Business Machines Corporation | Corrosion-resistant conductive glass |
-
1987
- 1987-07-07 JP JP62169074A patent/JPH0781455B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS612964U (en) * | 1984-06-11 | 1986-01-09 | パイロツトインキ株式会社 | Tickets with anti-counterfeiting printing |
JPS6219375U (en) * | 1985-07-17 | 1987-02-05 |
Also Published As
Publication number | Publication date |
---|---|
JPH0781455B2 (en) | 1995-08-30 |
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