Dustproof implement
AssigneeKabushiki Kaisha Unicla
InventorNobuhiro Ito
Life of this patent
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Abstract
A dustproof implement applied to a clutch to be attached to a compressor in an air-conditioning system loaded on a working vehicle, comprises a plate to be disposed opposite to an annular recess of a rotor of the clutch and fixed at the compressor, and an annular pad attached to the annular plate and abutting the rotor on the outer peripheral side of the annular recess of the rotor.
Claims9
A dustproof implement for a clutch for changing over transmission of rotating power relative to the rotation shaft of a compressor constituting a part of an air conditioning system of a working vehicle, the clutch including a rotor borne by a part of a housing of the compressor surrounding the end portion of the rotation shaft of the compressor and rotatable about the part, and an annular coil received in an annular recess provided in the rotor, said annular coil supported on the housing body through an annular support plate surrounding the part of the housing, comprising:
- an annular plate disposed between the coil support plate and the housing body and fixed on the housing body to face an open face of the annular recess of the rotor so as to cover the open face;
- and
- an annular pad attached to the annular plate and brought into contact with the rotor on the outer peripheral side of the annular recess of the rotor.
A method of dustproofing a gap between a stationary coil member and a rotating rotor member of a clutch that is adjacent to a compressor housing, wherein the gap has a first thickness and wherein the coil member is fixed to a support plate that is fastened to the compressor, the method comprising the steps of:
- fitting between the support plate and the compressor a thin annular plate having a thickness that is less that the first thickness and also having a radial periphery;
- and
- mounting a compressible pad to the radial periphery of the thin annular plate to engage the outermost radial part of the rotor member thereby to seal the gap.
A clutch and dustproofing assembly, comprising:
- a compressor housing having a support surface;
- a coil member fixed to a support plate and fastened to the support surface of the compressor housing;
- a rotor member rotatable about an axis and mounted adjacent to the support surface and having an annular recess within which fits the coil member with a gap defined between the coil member and the rotor member;
- an annular plate fastened between the support surface and the coil member support plate and having a radial periphery;
- and
- an annular pad attached to the radial periphery of the thin annular plate and engaging the rotor member in a plane that is perpendicular to the axis of the rotor member.
Dependencies are inferred from the claim text.