Closed cable drag chain
US6773297B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 2002 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Nov 22, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16G13/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
To provide a closed cable drag chain, which is capable of preventing the contact wear powder generated in holding and guiding the cable or the like from being scattered by reliably closing the cable or the like, and wherein the assembling, maintenance and repair are easy while having light weight and low noise. In a closed cable drag chain into which a cable or the like is inserted to be held and guided in conditions where a number of intermediate frames (10) are articulately connected to each other, an outer frame (20) including a removable opening/closing frame structure fit-covers a coupling portion of the adjacent intermediate frames (10) to close the coupling gaps S respectively thereby coupling it in a tubular shape, the intermediate frame (10) comprises an intermediate frame body and an opening/closing lid member (12) fitted into the intermediate frame body (11), and the intermediate frame body (11) includes lower open end surfaces (11b), which abut with each other on the chain bend inner peripheral side to hold a required bending position of the chain and upper open end surfaces (11c), which abut with each other on the chain bend outer peripheral side to hold a straight ext…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.