STEERING COLUMN APPARATUS
First Claim
1. A steering column apparatus, comprising:
- an inverse U-shaped attachment bracket to be fixed to a vehicle body;
a U-shaped lower jacket that is arranged in an inside of the attachment bracket and is supported by the attachment bracket;
a polygonal rod-shaped middle jacket that is arranged in an inside of the lower jacket and is supported by the lower jacket;
an upper jacket that has a polygonal rod shape similar to that of the middle jacket and is slidably inserted and supported in the middle jacket; and
an impact energy absorbing mechanism for absorbing an impact energy at a secondary collision,wherein the impact energy absorbing mechanism includes an energy absorbing section that serves as a load generating section for absorbing the impact energy,wherein the energy absorbing section includes (a) a resistive member that extends along an axial direction of the middle jacket and is fixed to the middle jacket and (b) a wire having a bent portion that is wound around the resistive member to have a curvature and a front portion that is fixed to the upper jacket, the front portion being at a more forward position than the bent portion.
1 Assignment
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Accused Products
Abstract
Disclosed is a steering column apparatus including an impact energy absorbing mechanism for absorbing an impact energy at a secondary collision. The impact energy absorbing mechanism includes an energy absorbing section that serves as a load generating section for absorbing the impact energy. The energy absorbing section includes (a) a resistive member that extends along an axial direction of the middle jacket and is fixed to the middle jacket and (b) a wire having a bent portion that is wound around the resistive member to have a curvature and a front portion that is fixed to the upper jacket, the front portion being at a more forward position than the bent portion.
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Citations
8 Claims
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1. A steering column apparatus, comprising:
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an inverse U-shaped attachment bracket to be fixed to a vehicle body; a U-shaped lower jacket that is arranged in an inside of the attachment bracket and is supported by the attachment bracket; a polygonal rod-shaped middle jacket that is arranged in an inside of the lower jacket and is supported by the lower jacket; an upper jacket that has a polygonal rod shape similar to that of the middle jacket and is slidably inserted and supported in the middle jacket; and an impact energy absorbing mechanism for absorbing an impact energy at a secondary collision, wherein the impact energy absorbing mechanism includes an energy absorbing section that serves as a load generating section for absorbing the impact energy, wherein the energy absorbing section includes (a) a resistive member that extends along an axial direction of the middle jacket and is fixed to the middle jacket and (b) a wire having a bent portion that is wound around the resistive member to have a curvature and a front portion that is fixed to the upper jacket, the front portion being at a more forward position than the bent portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification