| 摘要 |
FIELD: construction.SUBSTANCE: screw to be used in a connection of a counter-weight in household appliances by interconnection with a spring washer, which includes a head providing screwing actions by rotation, and a body passing under the head and provided with a threaded section, a cylindrical collar located on some part of the screw, where the body is attached to the head with a diameter exceeding the body diameter, and on which a spring washer is installed, a side surface, where the spring washer that is put freely is supported from the collar, a flat lower surface located on the lower part of the collar and facing to the body. A projecting part formed on the side surface by deformation of the lower surface after installation of the spring washer to the collar projects to the outer side from the side surface.EFFECT: possible use of screw in production process.6 cl, 5 dwg |
