초록 ▼

A conveyor ball unit comprises a conveyor ball mounted on a plurality of mounting balls in a mounting shell. A spring arrangement is provided to support the mounting shell resiliently in a housing and the conveyor ball is retained on the mounting balls by a retaining ring. A first holding device is

A conveyor ball unit comprises a conveyor ball mounted on a plurality of mounting balls in a mounting shell. A spring arrangement is provided to support the mounting shell resiliently in a housing and the conveyor ball is retained on the mounting balls by a retaining ring. A first holding device is provided to keep the housing substantially perpendicular to the surface of a supporting structure for the conveyor ball unit against a force acting on the conveyor ball. A second holding device is provided to hold the housing within an opening defined in the supporting structure and is located at an upper end of the housing. To simplify installation and removal of the unit in the supporting structure, the outer periphery of the second holding device is larger than that of the housing and locking elements are provided to fix the unit in the supporting structure. In addition, the second holding device is constructed so that after release of the locking elements it can be removed from the supporting structure as an independent element, thus allowing the housing with the components it contains to be removed from the opening in the supporting structure.

대표청구항 ▼

A conveyor ball unit comprising a conveyor ball; a mounting shell for the conveyor ball a plurality of mounting balls for supporting the conveyor ball in the mounting shell; a retaining ring to keep the conveyor ball in position on the mounting balls within the mounting shell; a spring arrangement t

A conveyor ball unit comprising a conveyor ball; a mounting shell for the conveyor ball a plurality of mounting balls for supporting the conveyor ball in the mounting shell; a retaining ring to keep the conveyor ball in position on the mounting balls within the mounting shell; a spring arrangement to provide a resilient support for the mounting shell; a housing for the spring arrangement; a first holding means for bracing said housing against a force acting on the conveyor ball so that said housing remains substantially perpendicular to a surface of a supporting structure for the conveyor ball unit, said first holding means being located at a lower end of said housing opposite the conveyor ball; at least one locking element to fix the conveyor ball unit in said supporting structure; and a second holding means to secure an upper portion of said housing in an opening defined by said supporting structure so that the conveyor ball can protrude above the level of said second holding means and above said surface of said supporting structure, the second holding means defining an outer periphery larger than that of said housing and being constructed so that after said locking element has been released the second holding means can be removed from the unit as an independent element enabling said housing to be removed from said opening in said supporting structure.