NUTRUNNER Russian patent published in 2008 - IPC B23P19/06 

FIELD: mechanics, tools.

SUBSTANCE: nut runner comprises a trolley with a post arranged thereon provided with a carriage furnished with steering handles, the carriage is being mounted in the guides and locked by a special mechanism made up of a spring-loaded pin connected with a cable passed through the travel limiter and furnished with a handle attached to the steering handle. The holes made in the post match the spring-loaded pin. The carriage travel mechanism consists of the aforesaid handles, a torsion spring accommodated in the post space on the rod, its one end being fastened to the rod lower end and the other spring end being attached to the rotary drum fitted on the rod and furnished with cable coiled on it and coupled with the carriage. The carriage supports a motor coupled with V-belt drive. The V-belt drive driven pulley runs in a fixed bush bearings, the bush in its turn being fitted in the spindle bearings. A handle is provided on one side of the said spindle and a holder with a changeable wrench is arranged on the spindle other side. The driven pulley hub is furnished with a boss. The spindle section adjacent to the fixed bush has splines to fit additional bush connected to the plate thereon. A yoke, its handle being coupled with a spring-loaded axle, is fitted on the said additional bush. A moving spring-loaded axle is furnished with a joint pin fitted outside the wall whereon the said axle if arranged. The aforesaid pin is in contact with the rotary bracket mounted on the wall and coupled with the handle.

EFFECT: expanded range of applications.

6 dwg