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US 12,655,885 B2Granted
Steering device
AssigneeHitachi Astemo, Ltd.
InventorNaoki Takayanagi
Life of this patent
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Abstract
In an insulator inserted in an insulator accommodation hole of a bracket body portion, an inclined portion is formed in an inner periphery of a first cylindrical body portion of a first core metal, the inclined portion being provided anterior to an internal thread portion in an inserting direction of a bolt and reduced in diameter toward the rear side in the inserting direction.
Claims10
A steering device comprising:
- a rack bar configured to turn a turned wheel;
- a gear housing made of metal material and including a rack bar accommodating portion and a bracket portion,
- the rack bar accommodating portion being configured to accommodate the rack bar in a movable manner,
- the bracket portion including a bracket body portion and an insulator accommodation hole,
- the bracket body portion being provided at an outer side of the rack bar accommodating portion,
- the insulator accommodation hole being a through-hole having a circular section, which extends through the bracket body portion;
- an insulator including a core metal and an elastic portion,
- the core metal being made of metal material and including a cylindrical body portion and a flange portion,
- the cylindrical body portion being accommodated in the insulator accommodation hole and including an inner periphery in which an internal thread portion and an inclined portion are formed, the internal thread portion being able to be fastened with a bolt, the inclined portion being provided anterior to the internal thread portion in an inserting direction of the bolt and reduced in diameter toward a rear side in the inserting direction,
- the flange portion having a shape protruding from the cylindrical body portion in a radially outward direction of the cylindrical body portion and having an external diameter that is formed larger than an internal diameter of the insulator accommodation hole,
- the elastic portion being made of elastic material and provided between the bracket body portion and the cylindrical body portion in a radial direction of the cylindrical body portion,
- wherein the cylindrical body portion includes a straight portion between the internal thread portion and the inclined portion in the inserting direction,
- wherein the insulator includes a first insulator and a second insulator;
- wherein the first insulator includes a first core metal and a first elastic body;
- wherein the second insulator is provided posterior to the first insulator in the inserting direction and includes a second core metal and a second elastic body;
- wherein the first core metal includes a first cylindrical body portion and a first flange portion;
- wherein the second core metal includes a second cylindrical body portion and a second flange portion;
- wherein the internal thread portion is provided in the second cylindrical body portion, and
- wherein the inclined portion is provided in the first cylindrical body portion.
16 more elements
Dependencies are inferred from the claim text.