Structure for preventing falling of fastening nut of portable power working machine, and method for attaching fastening nut to cover
US10174782B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2016 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Jul 11, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27B17/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A structure for preventing the falling of a fastening nut of a portable power working machine that can reliably prevent loss of the nut while suppressing the production and component costs, allows for easy operation of attaching a nut anchor member to a cover, and can increase the maintenance property, suppress damage and failures, increase the durability, and reduce the size and weight; and a method for attaching the fastening nut to a cover are provided. The structure includes a nut locking member, which is inserted through a bolt insertion hole from a back surface side of a cover so that movement of the nut locking member to a front surface side is prevented, and has a split cylindrical shape with elastically deformable leg-like piece portions; an anchoring cylindrical portion with a predetermined length functioning as a nut anchor member, the anchoring cylindrical portion being provided in a protruding manner and coaxially with the nut on a seating surface side, being adapted to be inserted through the bolt insertion hole, and being relatively difficult to elastically deform with respect to the nut locking member. A protruding end of the anchoring cylindrical portion of the nut…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.