BICYCLE HANDLEBAR, PARTICULARLY FOR A RACING BICYCLE

Abstract: Curved racing bicycle handlebar, having at the hand resting zone an almost rectilinear portion (16). In particular the proposed handlebar has, besides a horizontal portion (11) apt to be engaged in the lug, a shaped cavity (17) bent towards the rider, which has at a first portion in front of the hand grip, that is near the thumb, a very small bending radius (r), then a second portion which is rectilinear and joins with the first portion, then a third portion, near the back part of the hand also linked to the second one and having a much wider bending (R), that is nearly double than the previous one, the rectilinear portion extending for a distance almost equal to the width of the rider's hand.

Description: "BICYCLE HANDLEBAR, PARTICULARLY FOR A RACING BICYCLE" The present invention refers to a bicycle handlebar, particularly for a racing bicycle. The grip of a handlebar, in particular of sport and racing bicycles is generally carried out with a tube having a single radius bending. 5. The palm of the hand must thus adhere to this bending: it will therefore lay on the two ends leaving an empty space in the central part. This causes a thickening of the skin at the extremities of the palm, as well as skin irritations and in general an effort and a contraction of the hand and wrist muscles. This state of tension 10. jeopardizes driving safety and requires in general an increased effort on the part of the rider, coming even to prevent perfect control of the bicycle. The aim of the present invention is to carry out a perfectly anatomical handlebar which eliminates any uneven effort on the part of the rider. 5. The aforesaid aim has been achieved by foreseeing a curved handlebar having at the hand resting zone an almost rectilinear axis. In particular a handlebar is foreseen which has, besides a horizontal portion apt to be engaged in the lug, also a concave zone bent towards the rider, said zone having in a first portion in front of 10. • the hand grip, that is in front of the thumb, a very small bending radius, and in the portion behind the hand, that is near the little finger a bending of much wider radius, i.e. about double with respect to the previous one, while between these two zones a rectilinear portion bent of about 35-55° as regards to a vertical plane is 15. foreseen, which extends for a distance almost equal to the width of the rider's palm. The present invention will be better illustrated on the basis of an examplary β-ibodiment which is shown in the enclosed drawings, where: Fig. 1 is a top view of the proposed bicycle handlebar; and 20. Fig. 2 is a side view of the same handlebar. With reference to the drawings it will be noted that the proposed handlebar 10 is formed by a central fixing portion 11 which will be inserted in the lug of a bicycle and by two lateral sides 12 and 13 which are bent forward and then downward. The forward bending is totally traditional; the subject of the invention concerns the bending of the bar in a vertical plane from top towards bottom so as to form a shaped cavity 17 turned towards the rider and capable of receiving his hands. 5. This cavity 17 is carried out by means of a succession of three portions linked one with the other; a first bent portion 14 has a very small radius r; a second rectilinear portion 16, has an inclination comprised between 35° cind 55° as regards to the vertical; this portion is adjacent to the first bent portion 14; finally a 10. third portion 1 , has an ample bending radius R which is about double than the previous radius r and is also adjacent to the second portion. Normally the handlebar terminates with an end portion 18 almost horizontal. As it will be noted from Fig. 2 the hand of the rider can thus lay 1 - comfortably in the zone which where the axis of the tube is almost rectilinear.

Claims: C L A I M S 1. A curved racing bicycle handlebar, characterized in that it presents at the hand resting zone an almost rectilinear portion. 2. A handlebar according to claim 1 , characterized in that besides a horizontal portion(11 ) apt to be engaged in the lug, it 5- also has a concave zone bent towards the rider, which has at a first portion (14) in front of the hand grip, that is near the thumb, a very small bending radius (r), then a second portion (16) which is rectilinear and joins with the first portion, then a third portion (1 ), near the back part of the hand, also linked to the second one 10. and having a much wider bending (R), that is nearly double than the previous one, the rectilinear portion (13) extending for a distance almost equal to the width of the rider's hand. 3. A handlebar according to claim 1 or 2, characterized in that the rectilinear portion forms an angle comprised between 35° and 15. 55° as regards to a vertical line.

Inventors: MODOLO DOMENICO, MODOLO, DOMENICO
Applicants: MODOLO ADAMO & C, MODOLO ADAMO & C. S.N.C.
Application year: 1986
Main classification: B62K21
IPC codes: B62K21