Hub mounting means for bicycle

Claim 2

A hub mounting means for a bicycle, which is screwably engaged with a threaded screw portion provided on a main shaft, rotatably supporting a hub shell, at least at one end of said main shaft in the axial direction thereof so that said main shaft is fixed to a frame member of a bicycle, said hub mounting means comprising: a. a main body having a threaded hole screwably engaged with said threaded screw portion of the main shaft, said main body also having a hole which has a larger diameter than that of said threaded hole and is connected thereto, b. a friction member inserted into said hole larger in diameter, said friction member comprising a base portion insertibly supported within said hole larger in diameter in contact with the inner surface thereof, and a frictionally contacting portion which extends from said base portion in the axial direction thereof and which is expandable in the radial direction thereof, said frictionally contacting portion resiliently coming into contact with the outer periphery of said main shaft, and c. a means for fixing said friction member to said hole larger in diameter.

Claim 3

A hub mounting means according to claim 1, wherein said friction member is made of a resiliently deformable material.

Claim 4

A hub mounting means according to claim 1, wherein said friction member is made of phosphor bronze.

Claim 5

A hub mounting means according to claim 1, wherein said friction member is substantially cylindrical and said frictionally contacting portion of said friction member is provided with a plurality of slots extending axially thereof which form a plurality of frictionally contacting fin elements.

Claim 6

A hub mounting means according to claim 1, wherein said friction member is substantially cylindrical and the frictionally contacting portion of said friction member has an inner diameter smaller than the major diameter of the threaded screw portion of said main shaft.

Claim 7

A hub mounting means according to claim 1, wherein said friction member is mounted with a snap ring to the hole larger in diameter provided in said main body thereof.

Claim 8

A hub mounting means for a bicycle, which is provided with a tubular shaft rotably supporting hub shell, a main shaft penetrating through said tubular shaft at the center thereof, at one end of said main shaft in the axial direction thereof a contact member coming into contact with the outer surface of one of two legs of a fork-like shaped frame of the bicycle and an operating lever having a cam means which permits said contact member to be moved in the axial direction with respect to the main shaft, and at the other end of said main shaft a threaded screw formed thereon, thereby to be screwably engaged with said threaded screw for fixing said main shaft and said tubular shaft to the frame of the bicycle, said hub mounting means comprising: a. A main body having a threaded hole screably engageable with the threaded screw of said main shaft, and a hole larger in diameter than said threaded hole and co-axially connected thereto, b. a friction member inserted into said hole larger in diameter, said friction member comprising: a base portion which comes into contact with said hole to be supported therewith, and a frictionally contacting portion which extends from said base portion in the axial direction thereof and is capable of expanding in the radial direction thereof, said frictionally contacting portion resiliently coming in contact at the inner surface thereof with the outer periphery of said main shaft, and c. a means for fixing said friction member to said hole larger in diameter d. a rotable operating element for permitting the main body to be rotated for the screwable engagement thereof with the thread screw of said main shaft.

Claim 9

A hub mounting means for a bicycle, which is provided with a tubular shaft rotably supporting hub shell, a main shaft penetrating through said tubular shaft at the center thereof, at one end of said main shaft in the axial direction thereof a contact member coming into contact with the outer surface of one of two legs of a fork-like shaped frame of the bicycle and an operating lever having a cam means which permits said contact member to be moved in the axial direction with respect to the main shaft, and at the other end of said main shaft a threaded screw formed thereon, thereby to be screwably engaged with said threaded screw for fixing said main shaft and said tubular shaft to the frame of the bicycle, said hub mounting means comprising: a. A main body having a threaded hole screably engageable with the threaded screw of said main shaft, and a hole larger in diameter than said threaded hole and co-axially connected thereto, b. a friction member inserted into said hole larger in diameter, said friction member comprising: a base portion which comes into contact with said hole to be supported therewith, and a frictionally contacting portion which extends from said base portion in the axial direction thereof and is capable of expanding in the radial direction thereof, said frictionally contacting portion resiliently coming in contact at the inner surface thereof with the outer periphery of said main shaft, and c. a means for fixing said friction member to said hole larger in diameter d. a rotable operating element for permitting the main body to be rotated for the screwable engagement thereof with the thread screw of said main shaft.