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US 10,328,994 B2Granted
Bicycle handlebar
OwnerShinji Maruiinventor
Life of this patent
Estimating the term…
Abstract
A lightweight handlebar configured to be coupled to a plurality of stems is characterized by the strength of the center portion not being a maximum. Moreover, the design may be such that a single handlebar is attached between two stems, wherein the strength at a center portion that is positioned between stem attaching positions is less than the strength of the portions that are positioned toward the outsides of the stem attaching portions. Moreover, a marker for indicating unsuitability for securing to a stem may be provided at the center portion of the handlebar.
Claims19
A bicycle handlebar apparatus, comprising:
- a center portion;
- a first stem attaching portion on a first side of the center portion, the first stem attaching portion attaching to a first fork leg;
- a second stem attaching portion on a second, opposite side of the center portion, the second stem attaching portion attaching to a second fork leg;
- a first grip portion extending from the first stem attaching portion;
- and
- a second grip portion extending from the second stem attaching portion, wherein
- the first stem attaching portion and the second stem attaching portion are structured to resist a greater bending force, as compared to the center portion;
- and
- the first grip portion and the second grip portion are structured to resist the same bending force, as compared to first stem attaching portion and the second stem attaching portion.
6 more elements
A bicycle handlebar apparatus, comprising:
- a center portion having a center portion wall thickness;
- a first stem attaching portion and a second stem attaching portion laterally joined to the center portion, the first stem attaching portion having a first stem attaching portion wall thickness, the second stem attaching portion having a second stem attaching portion wall thickness;
- and
- a first grip portion and a second grip portion extending from, respectively, the first stem attaching portion and the second stem attaching portion, the first grip portion having a first grip portion wall thickness, the second grip portion having a second grip portion wall thickness, wherein
- the first stem attaching portion and the second stem attaching portion are structured to resist a greater bending force, as compared to the center portion;
- the first grip portion and the second grip portion are structured to resist a greater bending force, as compared to the center portion.
3 more elements
A bicycle handlebar apparatus, comprising:
- a center portion;
- a first stem attaching portion on a first side of the center portion;
- a second stem attaching portion on a second, opposite side of the center portion;
- a first grip portion extending from the first stem attaching portion;
- a second grip portion extending from the second stem attaching portion;
- a first bent portion positioned between the first stem attaching portion and the first grip portion, the first bent portion having a first bent portion outer diameter and a first bent portion wall thickness;
- and
- a second bent portion positioned between the second stem attaching portion and the second grip portion, the second bent portion having a second bent portion outer diameter and a second bent portion wall thickness, wherein
- a center portion wall thickness is less than each of a first stem attaching portion wall thickness and a second stem attaching portion wall thickness, a first grip portion wall thickness and a second grip portion wall thickness, and the first bent portion wall thickness and the second bent portion wall thickness;
- the first stem attaching portion and the second stem attaching portion are structured to resist a greater bending force, as compared to the center portion;
- and
- the first grip portion and the second grip portion are structured to resist a greater bending force, as compared to the center portion.
9 more elements
Dependencies are inferred from the claim text.