Patent ID: 8613327

Claim:
Fluid-powered percussion tool, comprising a housing with a supply channel for pressurised fluid, a percussion mechanism, a swinging joint arranged to carry the percussion mechanism relative to the housing at a point situated between the forward end A and the rear end B of the percussion mechanism, at least one elastically resilient element arranged between the housing and the percussion mechanism at a distance from the swinging joint and arranged to load the percussion mechanism against a neutral position in the housing and to absorb the vibrational movements of the percussion mechanism, and a flexible connection for pressurised fluid for distribution of pressurised fluid from the supply channel for pressurised fluid to the percussion mechanism, wherein the elastically resilient element comprises a conical spring, and in that the flexible connection for pressurised fluid contains a hose, and wherein the percussion mechanism and the housing each comprise a spring seat adapted to abut against a different part of said conical spring and to radially secure said parts of said conical spring abutting against said spring seats, and the conical spring is arranged prestressed in the axial direction.