Title:
テーパ状のローブ状ドライバ及び締結具
Document Type and Number:
Japanese Patent JP6996815
Kind Code:
B2
Abstract:
A fastener systems includes a fastener and a driver, each of which have three alternating lobes and troughs that define the drive surfaces. The three alternating lobes and troughs are each defined by an outer radius portion, a drive side transition, an inner transition radius, and a reverse drive portion.The fastener recess and the driver each also have a side wall defined by the outer transition radius that tapers at a taper angle relative to the rotational axis. The fastener side wall may taper at about 60. The driver side wall may taper at about 60. Alternatively, the driver side wall may taper at angle at least 10 less than the taper angle of the recess side wall, such as 42. The drive side transition defines a drive angle which may be between 0 and 5.
Inventors:
Luke's, Richard W.
Braes, Donald Kay.
Reskin, sean
Braes, Donald Kay.
Reskin, sean
Application Number:
JP2018503796A
Publication Date:
January 17, 2022
Filing Date:
August 18, 2016
Export Citation:
Assignee:
Infastech Intellectual Properties PTE Limited
International Classes:
B25B15/00; F16B23/00
Domestic Patent References:
| JP2014524364A | ||||
| JP2010249321A | ||||
| JP4823692B2 | ||||
| JP4031418B2 |
Foreign References:
| US20090260489 | ||||
| US20110048181 |
Attorney, Agent or Firm:
Longhua International Patent Service Corporation