FIELD: machine building.
SUBSTANCE: invention relates to fixture elements. Self-cutting and thread-shaping screw includes screw body, point, implemented at one end of screw, and place of application of force for passing of rotational moment, implemented at the other end of screw. Screw body consists of threaded section to which from one side adjoins point of screw and free from thread, containing the place of application of a force section, which adjoins to threaded section from its remote from point of screw side. Threaded section consists of in essence cylindrical bar and thread-shaping thread. At threaded section in remote from the point of screw area it is implemented rod-shaped section with polygonal section of rod, which by its angles specifies envelope circle with diametre, exceeding diametre of rod free from thread of rod-shaped section.
EFFECT: screw can be screwed with minor rotational moment of screwdriving, it is simplified its fabrication method at providing of high accuracy of manufacturing.
10 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SCREW ELEMENT | 2014 |
|
RU2569769C9 |
| THREAD-FORMING SCREW | 2005 |
|
RU2326273C1 |
| METHOD FOR KNURLING THREAD ON ROD PRODUCTS AND TOOL FOR PERFORMING THE SAME | 2000 |
|
RU2179490C2 |
| SELF-TAPPING SCREW IMPLANT | 2011 |
|
RU2547726C2 |
| METHOD OF MAKING FASTENING ARTICLES WITH POLYHEDRAL STEM | 0 |
|
SU1759517A1 |
| SCREW WITH PROFILE-SHAPING THREAD | 2005 |
|
RU2340802C2 |
| SCREW ELEMENT HAVING TOOL ENGAGEMENT PORTION | 2014 |
|
RU2668205C1 |
| ARRANGEMENT FOR ROLLING INTERNAL THREAD | 0 |
|
SU1337178A1 |
| LOCKING DEVICE | 2007 |
|
RU2351993C2 |
| METHOD FOR KNURLING THREAD ON FLUTED ROD | 1994 |
|
RU2100128C1 |
