1) Field of the Invention
The invention herein relates to a bicycle assistive handlebar structure in which a connective mounting shank of assistive handlebars is installed in the handlebars, with the handlebars then being centrally positioned between an installation crown and a front fork stem, stem clamp mount, enabling the rider variable adjustment operation as needed over upper and lower height, forward and backward distance, and rotative direction to thereby achieve the most suitable grasping posture.
2) Field of the Invention
Conventional bicycle handlebars that accommodate the installation of assistive handlebars are typically designs that enable stationary positioning. However, when another rider mounts such a bicycle and wants to use the permanently positioned assistive handlebars, different riders experience discomfort which not only fails to meet the objective of assistive grasping but also results in manual obstruction and utilization difficulty.
As a result, the applicant of the invention herein developed the specialized bicycle assistive handlebar structure of the present invention.
The primary objective of the invention herein is to provide a bicycle assistive handlebar structure installed at the anterior extent of a front fork stem, stem clamp mount that serves as a means of conjoinment having an integrated installation crown in which variously shaped handlebars are positioned. The stem clamp mount consists of a concave section and a threaded hole at each of its four corners that provides for the fastening of bolts inserted via four through-holes of an integrated installation crown that is thereby brought into a clamped position. Furthermore, a vertical coupling passage is disposed through the installation crown, thereby providing for the horizontal arrangement of a handlebar in a connective mounting shank after the vertical rod at its lower end is inserted such that the vertical rod of the connective mounting shank in the horizontally arranged handlebar is adjusted up or down to set the height. The two sides of a transverse rod in the connective mounting shank provides for the fitting into position of insertion sleeves at the lower end of a forearm support base and an elongated hole is reticulated at the front end of the connective mounting shank that provides for the stationary seating of a joint mount into the connective mounting shank elongated hole. Radial splines are respectively fabricated along the outer sides of the joint mount and the inner sides of an assistive handlebar and the angle of the assistive handlebars are varied by turning. As such, the rider achieves the most suitable grasping posture.
Referring to
As such, when the rider wants to use the assistive handlebars 6, the vertical rod 31 of the connective mounting member in the horizontally arranged handlebar 2 is adjusted up or down to set the height (as shown in
In summation of the foregoing section, since the invention herein provides for rapid, convenient, and easy installation as well as optimal grasping, the present invention meets the application requirements stipulated by Article 93 of the new patent law and is submitted to the patent bureau for review and the granting of the commensurate patent rights.
Number | Name | Date | Kind |
---|---|---|---|
586897 | Godfrey | Jul 1897 | A |
4750754 | Lennon | Jun 1988 | A |
5197350 | Borromeo | Mar 1993 | A |
5241881 | Chen | Sep 1993 | A |
5353663 | Samuelson | Oct 1994 | A |
6098493 | Cortes | Aug 2000 | A |
6244131 | Liao | Jun 2001 | B1 |
7077029 | McColligan et al. | Jul 2006 | B2 |
20020108465 | Rocket | Aug 2002 | A1 |
20050000313 | Johnson | Jan 2005 | A1 |
20050044981 | Huang | Mar 2005 | A1 |
Number | Date | Country | |
---|---|---|---|
20060230872 A1 | Oct 2006 | US |