JPS6487498A - Screw jack - Google Patents
Screw jackInfo
- Publication number
- JPS6487498A JPS6487498A JP24346287A JP24346287A JPS6487498A JP S6487498 A JPS6487498 A JP S6487498A JP 24346287 A JP24346287 A JP 24346287A JP 24346287 A JP24346287 A JP 24346287A JP S6487498 A JPS6487498 A JP S6487498A
- Authority
- JP
- Japan
- Prior art keywords
- dies
- stem
- nut part
- cavity
- helical line
- 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
- Food-Manufacturing Devices (AREA)
- Transmission Devices (AREA)
Abstract
PURPOSE: To house foreign matter incapable of being cut by dies into cavity by providing the dies below a nut part of a screw jack, putting the cavity next to the dies, and forcibly scraping off shells, seaweeds, or the like before screwing of a stem. CONSTITUTION: A helical line 2 is formed on the inner periphery of a nut part 1, the nut part is screwed to a longitudinal stem and rotated together with a cylindrical part 3 integrated with the nut part 1 to vertically move the stem. A gear train 5 to be meshed with a worm gear 4 is provided on the cylindrical part 3, and the cylindrical body 3 is rotated together with the nut part 1 by the rotation of the worm gear 4. Next, blade parts of dies 7 provided on a lower opening part of the cylindrical body 3 bite the helical line on the stem side. A cavity 10 is provided between the dies 7 and the helical line 2 to form a housing space for invaded foreign matters.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243462A JP2571695B2 (en) | 1987-09-28 | 1987-09-28 | Screw jack |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243462A JP2571695B2 (en) | 1987-09-28 | 1987-09-28 | Screw jack |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6487498A true JPS6487498A (en) | 1989-03-31 |
JP2571695B2 JP2571695B2 (en) | 1997-01-16 |
Family
ID=17104246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62243462A Expired - Lifetime JP2571695B2 (en) | 1987-09-28 | 1987-09-28 | Screw jack |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2571695B2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS595671A (en) * | 1982-07-02 | 1984-01-12 | Toshiba Corp | Semiconductor device and manufacture thereof |
-
1987
- 1987-09-28 JP JP62243462A patent/JP2571695B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS595671A (en) * | 1982-07-02 | 1984-01-12 | Toshiba Corp | Semiconductor device and manufacture thereof |
Also Published As
Publication number | Publication date |
---|---|
JP2571695B2 (en) | 1997-01-16 |
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