Resources Contact Us Home
Hoisting and lowering driving engagement multi-row chain

Image Number 6 for United States Patent #7980978.

A hoisting and lowering driving engagement multi-row chain is disclosed, in which bending of the connecting pins in the chain is suppressed to avoid fatigue failure. Additionally, the load carrying balance in the chain width direction is improved, and contact vibrations and contact noises generated between the chain and the hoisting and lowering sprockets are suppressed. Endurance of the bush in the chain is thereby improved. Bending of connecting pins is avoided by press-fitting bushes, through which connecting pins pass, into intermediate tooth plates. This also improves load carrying balance widthwise. Contact noises and vibrations between the bushes and sprockets are suppressed by providing bushes with a separate sprocket engagement portion having a larger diameter than the press-fitting portion of the bushes.

  Recently Added Patents
Method for forming contact hole
Holding structure for a touch panel
System for wireless local area network (WLAN) transmission and for coexistence of WLAN and another type of wireless transmission and methods thereof
Method of sending CTI messages in a communication system
Rim for a TV receiver
System and method for access of user accounts on remote servers
Configurable logic cells
  Randomly Featured Patents
Computer terminal for manufacturing data acquisition
Earth moving machine
3,4-difluoro-5-nitrobenzotrifluoride and preparation of fluoro-nitro-benzotrifluorides
Game apparatus
Apparatus and method for managing radio frequency indentification reader
Apparatus and method for imparting wrinkle-resistant properties to garments and other articles
Preparation of d4T from 5-methyluridine
Glucuronyl C5-epimerase, DNA encoding the same and uses thereof
Method of polymerizing carbonimide norbornene derivatives
Burner apparatus