Document Type and Number:
Japanese Patent JPH0310823
Kind Code:
B2
Abstract:
In a device for producing self-locking properties of a screw and nut device (1,2) the nut co-operates with a torque- transmitting part (3) which is rotatable in relation to the nut. Torque is transmitted via a portion (9) on the-torque- transmitting part, which portion is arranged in a space (8) between two opposing surfaces on the nut. A helical spring (10) is arranged in a thread around a threaded shaft and has an end portion (11) inserted into the space (8). The helical portion of the spring has a loose fit in the thread when the nut is driven by the part (3), whereas the spring is contracted against the shaft when the end portion (11) contacts one of the opposing surfaces of the nut and thereby brakes the rotation if the nut tends to be rotated by an axial load on the nut and the part (3) is disconnected.
Inventors:
SUBEN BARUTAA NIRUSON
Application Number:
JP28908986A
Publication Date:
February 14, 1991
Filing Date:
December 05, 1986
Export Citation:
Assignee:
SKF NOVA AB
International Classes:
B66D3/18; F16D49/02; F16D59/00; F16H25/20; F16H25/22; F16H37/12; F16H25/24