JPS6487498A - Screw jack - Google Patents

Screw jack

Info

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
Application number
JP24346287A
Other languages
Japanese (ja)
Other versions
JP2571695B2 (en
Inventor
Fumiaki Kanai
Noboru Matsuyama
Sumio Amano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Gear Co Ltd
KYB Corp
Original Assignee
Kayaba Industry Co Ltd
Nippon Gear Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kayaba Industry Co Ltd, Nippon Gear Co Ltd filed Critical Kayaba Industry Co Ltd
Priority to JP62243462A priority Critical patent/JP2571695B2/en
Publication of JPS6487498A publication Critical patent/JPS6487498A/en
Application granted granted Critical
Publication of JP2571695B2 publication Critical patent/JP2571695B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
JP62243462A 1987-09-28 1987-09-28 Screw jack Expired - Lifetime JP2571695B2 (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS595671A (en) * 1982-07-02 1984-01-12 Toshiba Corp Semiconductor device and manufacture thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
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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