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US 8,783,960 B2Granted
Dust-proof housing device for an assembly and bearing assembly including the same
AssigneeThai Dieng Industry Co., Ltd.
InventorChih-Hsien Chang
Life of this patent
Estimating the term…
Abstract
A dust-proof housing device is adapted for a bearing assembly and includes a housing body that includes two housing-half walls, each of which has a central hole defining an axis, and an inner peripheral end surrounding the central hole. A dust-proof cover has a fixing ring fitted in the inner peripheral end of at least one of the housing-half walls, and an annular flexible member secured to the fixing ring.
Claims10
A dust-proof housing device for a bearing assembly, comprising:
- a housing body including two housing-half walls, each of which has a central hole defining an axis, and an inner peripheral end surrounding said central hole;
- and
- a dust-proof cover having a fixing ring fitted in said inner peripheral end of at least one of said housing-half walls, and an annular flexible member secured to said fixing ring;
- said inner peripheral end including a stepped annular edge that interconnects outer and inner surfaces of a corresponding one of said housing-half walls, said stepped annular edge having an annular protrusion projecting into said central hole in proximity to said inner surface, a shoulder proximate to said outer surface, and a chamfer formed on said annular protrusion and proximate to said inner surface;
- and
- said fixing ring having a main body portion that has an L-shaped cross section and that is fitted in said stepped annular edge in a complementing manner, and a lip portion that projects from said main body portion and that engages said chamfer.
3 more elements
A bearing assembly, comprising:
- a bearing unit;
- and
- a dust-proof housing device enclosing said bearing unit, and including:
- a housing body including two housing-half walls, each of which having a central hole defining an axis, and an inner peripheral end surrounding said central hole;
- and
- two dust-proof covers each of which has a fixing ring fitted in said inner peripheral end of one of said housing-half walls, and an annular flexible member secured to said fixing ring;
- said inner peripheral end including a stepped annular edge that interconnects outer and inner surfaces of a corresponding one of said housing-half walls, said stepped annular edge having an annular protrusion projecting into said central hole in proximity to said inner surface, a shoulder proximate to said outer surface, and a chamfer formed on said annular protrusion and proximate to said inner surface;
- and
- said fixing ring having a main body portion that has an L-shaped cross section and that is fitted in said stepped annular edge in a complementing manner, and a lip portion that projects from said main body portion and that engages said chamfer.
6 more elements
Dependencies are inferred from the claim text.