Title:
LIGHTWEIGHT HIGH STRENGTH BICYCLE SEAT POST AND ASSOCIATED CLAMP
Document Type and Number:
WIPO Patent Application WO1997007012
Kind Code:
A3
Abstract:
A bicycle seat post and clamp includes a tube and a flange connected to an end thereof with the flange comprising a pair of opposing ears extending longitudinally outwardly from the tube and having an upper surface defining a laterally extending recess for receiving a lower clamp member. A lower clamp member preferably includes a lower clamp body portion having a lower surface defining a laterally extending partial cylindrical shape received in the recess of the flange, and a pair of lower rail channel defining portions connected to respective opposing longitudinally extending sides of the lower clamp body portion. Each of the lower rail channel defining portions preferably includes at least one cantilevered rail support portion extending outwardly from the lower clamp body portion. The upper clamp member preferably includes an upper clamp body portion and a pair of upper rail channel defining portions connected to respective opposite longitudinally extending sides of the upper clamp body portion. A pair of fasteners secure opposing longitudinal ends of the upper clamp body portion to corresponding ears of the flange so as to clamp the bicycle seat rails between upper and lower rail channel defining portions of the upper and lower clamp members. The flange and the clamp may have relative strengths so that the tube of the seat post bends, responsive to a relatively large force offset from an axis of the tube, and prior to failure of one of the flange and the clamp.
Inventors:
THOMSON LORONZO HAROLD (US)
NIETZOLD DANIEL RUDY (US)
NIETZOLD DANIEL RUDY (US)
Application Number:
PCT/US1996/012493
Publication Date:
April 10, 1997
Filing Date:
July 30, 1996
Export Citation:
Assignee:
L H THOMSON COMPANY INC (US)
THOMSON LORONZO HAROLD (US)
NIETZOLD DANIEL RUDY (US)
THOMSON LORONZO HAROLD (US)
NIETZOLD DANIEL RUDY (US)
International Classes:
B62J1/08; (IPC1-7): B62J1/08
Foreign References:
| US4783119A | 1988-11-08 | |||
| US5383706A | 1995-01-24 | |||
| DE29501393U1 | 1995-04-13 | |||
| FR2409182A1 | 1979-06-15 | |||
| US4009623A | 1977-03-01 | |||
| US5190346A | 1993-03-02 | |||
| US5466042A | 1995-11-14 |
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