Steering device
AssigneeJtekt Corporation
InventorYasuharu Yamamoto
Life of this patent
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Abstract
A rack-parallel electric power steering device includes a housing that covers the periphery of a speed reducer, and a drain valve provided in the housing. The drain valve includes a first case, a second case mounted to the outer peripheral portion of a bottom portion of the first case, and a valve element that closely contacts a bottom surface of the first case. A through hole is formed in the bottom portion of the first case. The second case includes a bottom portion which is disposed with a gap from the bottom portion of the first case and in which discharge holes are formed. The valve element is an elastic member that blocks an opening portion of the through hole of the first case and that is held between the first case and the second case.
Claims9
A steering device comprising:
- a steered shaft that moves in an axial direction on the basis of rotation of a steering shaft to steer steered wheels;
- a motor that applies an assist force to the steered shaft via a speed reducer;
- and
- a housing that covers a periphery of the speed reducer, wherein
- a drain valve is provided at a bottom wall portion of the housing under the speed reducer in a vertical direction, and
- the drain valve comprises:
- a first case that opens into the housing and that has a bottomed cylindrical shape having a bottom portion in which a through hole is formed;
- a second case that is mounted to an outer peripheral portion of the bottom portion of the first case and that has a bottomed cylindrical shape having a bottom portion which is disposed with a gap from the bottom portion of the first case and in which a discharge hole is formed;
- and
- a valve element formed of an elastic member that closely contacts a bottom surface of the first case to block an opening portion of the through hole and that is held between the first case and the second case by having a top surface of the valve element contact the bottom surface of the first case and a bottom surface of the valve element contact a top surface of the second case.
Dependencies are inferred from the claim text.