Steering device
First Claim
Patent Images
1. A steering device, comprising:
- a steering column;
a pair of held sections;
a pair of long telescopic-adjustment holes;
a support bracket;
a pair of vehicle-side through holes;
an adjustment rod;
a pair of pressure sections;
an expansion/contraction device;
a cam member;
a fastening member; and
a stopper member;
the steering column having an inner column and an outer column, the steering column constructed by fitting together the rear section of the inner column with the front section of the outer column so that relative displacement in the axial direction is possible, and rotatably supporting an extendable/contractible steering shaft on the inside of the steering column;
the pair of held sections integrally provided with the outer column at two locations on the top surface or the bottom surface of the outer column that are separated in the width direction;
the pair of long telescopic-adjustment holes provided in portions of the pair of held sections that are aligned with each other, and extending in the axial direction of the outer column;
the support bracket having a pair of support-plate sections that sandwich the pair of held sections from both sides in the width direction, and is supported by a vehicle body so as to be able to detach forward due to a load that is applied during a secondary collision;
the pair of vehicle-side through holes provided in portions of the pair of support-plate sections that are aligned with each other;
the adjustment rod provided so as to pass in the width direction through the pair of long telescopic-adjustment holes and the pair of vehicle-side through holes;
the pair of pressure sections provided on portions of both end sections of the adjustment rod that protrude from the outside surfaces of the pair of support-plate sections;
the expansion/contraction device expanding or contracting the space between the pair of pressure sections;
the cam member fastened to a portion of the adjustment rod that is located between the pair of held sections in the middle section in the axial direction of the adjustment rod;
the fastening member provided such that the forward-backward position with respect to the vehicle body is regulated; and
the stopper member having a stopper surface that faces toward the rear when the stopper member is supported by the fastening member; and
one side surface in the up-down direction that faces the outside surface of the steering column and comes in contact with the outer-circumferential surface of the cam member when the stopper member is supported by the fastening member, and the stopper member being constructed so that in the state in which the space between the pressure sections is expanded by the expansion/contraction device, the stopper surface is displaced toward the steering column side by the cam member, and when the outer column is displaced forward, the stopper surface hits a portion that displaces forward together with the outer column before the rear-end sections of the pair of long telescopic-adjustment holes hit the outer-circumferential surface of the adjustment rod, and in the state in which the space between the pair of pressure sections is contracted by the expansion/contraction device, the stopper surface is displaced in a direction going away from the steering column by the cam member, and even when the outer column displaces forward, the stopper surface does not hit the portion that displaces forward together with the outer column before the rear-end sections of the long telescopic-adjustment holes hit the outer-circumferential surface of the adjustment rod.
1 Assignment
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Accused Products
Abstract
Construction is achieved of a steering device that is capable of preventing impact going forward from being applied to a support bracket even when a steering wheel is vigorously displaced to a front-end position when adjusting the forward-backward position of the steering wheel. Part of the stopper member 28 is supported by a fastening member such as a housing 10a. When an outer column 22a is displaced forward in a state in which the forward-backward position of the steering wheel can be adjusted, a portion that displaces forward together with the outer column 22a hits a pair of stopper surfaces 41 of the stopper member 28 before an adjustment rod hits a pair of long telescopic-adjustment holes.
19 Citations
8 Claims
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1. A steering device, comprising:
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a steering column;
a pair of held sections;
a pair of long telescopic-adjustment holes;
a support bracket;
a pair of vehicle-side through holes;
an adjustment rod;
a pair of pressure sections;
an expansion/contraction device;
a cam member;
a fastening member; and
a stopper member;the steering column having an inner column and an outer column, the steering column constructed by fitting together the rear section of the inner column with the front section of the outer column so that relative displacement in the axial direction is possible, and rotatably supporting an extendable/contractible steering shaft on the inside of the steering column; the pair of held sections integrally provided with the outer column at two locations on the top surface or the bottom surface of the outer column that are separated in the width direction; the pair of long telescopic-adjustment holes provided in portions of the pair of held sections that are aligned with each other, and extending in the axial direction of the outer column; the support bracket having a pair of support-plate sections that sandwich the pair of held sections from both sides in the width direction, and is supported by a vehicle body so as to be able to detach forward due to a load that is applied during a secondary collision; the pair of vehicle-side through holes provided in portions of the pair of support-plate sections that are aligned with each other; the adjustment rod provided so as to pass in the width direction through the pair of long telescopic-adjustment holes and the pair of vehicle-side through holes; the pair of pressure sections provided on portions of both end sections of the adjustment rod that protrude from the outside surfaces of the pair of support-plate sections; the expansion/contraction device expanding or contracting the space between the pair of pressure sections; the cam member fastened to a portion of the adjustment rod that is located between the pair of held sections in the middle section in the axial direction of the adjustment rod; the fastening member provided such that the forward-backward position with respect to the vehicle body is regulated; and the stopper member having a stopper surface that faces toward the rear when the stopper member is supported by the fastening member; and
one side surface in the up-down direction that faces the outside surface of the steering column and comes in contact with the outer-circumferential surface of the cam member when the stopper member is supported by the fastening member, and the stopper member being constructed so that in the state in which the space between the pressure sections is expanded by the expansion/contraction device, the stopper surface is displaced toward the steering column side by the cam member, and when the outer column is displaced forward, the stopper surface hits a portion that displaces forward together with the outer column before the rear-end sections of the pair of long telescopic-adjustment holes hit the outer-circumferential surface of the adjustment rod, and in the state in which the space between the pair of pressure sections is contracted by the expansion/contraction device, the stopper surface is displaced in a direction going away from the steering column by the cam member, and even when the outer column displaces forward, the stopper surface does not hit the portion that displaces forward together with the outer column before the rear-end sections of the long telescopic-adjustment holes hit the outer-circumferential surface of the adjustment rod. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification