Title:
RESIN NUT AND MANUFACTURE THEREOF AND SCREW FEED DEVICE
Document Type and Number:
Japanese Patent JP3914359
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a resin nut with high accuracy and decrease mam-hours.
SOLUTION: A manufacturing method of resin nut 1 comprises the steps of: injecting thermoplastic resin material in melting state into a cavity provided inside thereof with a core pin of which the peripheral surface is threaded, and extracting the core pin with rotating after the resin material is solidified. The core pin has an incomplete thread 1a in at last one of thread groove end portions cut on the peripheral surface.
More Like This:
| JPH04310402 | WHEEL |
| JP4066815 | Mold manufacturing method and molding equipment |
Inventors:
Mizutani Tamaki
Application Number:
JP25253399A
Publication Date:
May 16, 2007
Filing Date:
September 07, 1999
Export Citation:
Assignee:
ntn corporation
International Classes:
B29C33/42; F16H25/24; B29C33/44; B29C45/26; B29C45/44; F16H25/22; (IPC1-7): F16H25/22; B29C33/42; B29C33/44; B29C45/44; F16H25/24; //B29K101:12; B29L1:00
Domestic Patent References:
| JP1166814U | ||||
| JP9133195A | ||||
| JP3001018U |
Attorney, Agent or Firm:
Wake Manipulation