Abstract:
A wheel rim includes two annular sidewalls and a main connecting wall. The main connecting wall has two ends connected respectively and fixedly to radial inner ends of the sidewalls, and opposite radially inner and outer surfaces. The radially inner surface faces the hub, and has two axial surface portions and a middle surface portion that are preferably concaved toward the tire. The radially outer surface has two axial surface portions and a middle portion. The axial surface portions of the radially inner and outer surfaces define two force-bearing areas having a plurality of mounting holes. The middle surface portions of the radially inner and outer surfaces define a weight-reducing area having a thickness smaller than a thickness of the force-bearing areas. The force-bearing areas and the weight-reducing area are arched.
Abstract:
A bicycle wheel rim includes an annular rim body having left and right annular tire retaining walls with inner edges connected to left and right edges of an annular spoke mounting wall. Each of a pair of annular corner reinforcing members is formed integrally with the rim body at a junction of a corresponding one of the left and right edges of the spoke mounting wall with the inner edge of a respective one of the tire retaining walls. Each of the corner reinforcing members extends laterally outward relative to the respective one of the tire retaining walls, and further extends radially inward relative to the spoke mounting wall.
Abstract:
The present invention relates to a new gene encoding a glycine-rich polypeptide, and an expression vector, host cell and transgenic plant comprising the gene. The expression of the gene of the invention in the plant will enhance resistance against a wide variety of pathogens, in particular fungi.
Abstract:
A bicycle wheel includes a wheel rim and a plurality of spokes. The wheel rim includes spaced left and right tire retaining walls that are interconnected by a base wall. Each of the tire retaining walls is formed with a set of spoke mounting holes, each of which extends through lateral outer and inner surfaces of the tire retaining wall. Each spoke has an inner end portion mounted on a hub, and an outer end portion which includes an enlarged head abutting against the lateral outer surface of the respective tire retaining wall, an extending section received in a respective spoke mounting hole, and a bending section disposed adjacent to the lateral inner surface of the respective tire retaining wall. The bending section is bent from the extending section, and extends toward the inner end portion of the spoke.
Abstract:
A wheel rim includes an annular rim body having a horizontally disposed rim axis. The rim body includes an annular base wall, and a pair of opposite annular side walls. The annular base wall is formed with a plurality of spoke fastening holes spaced apart from each other, and has two opposite lateral edges. The annular side walls extend radially, outwardly and respectively from the lateral edges of the annular base wall. Each of the annular side walls includes a hollow segment that defines an annular hole. The hollow segment has an inner wall portion disposed at an inner side of the annular hole and facing the other one of the annular side walls, and an outer wall portion connected to the inner wall portion and disposed at an outer side of the annular hole opposite to the inner side of the annular hole.
Abstract:
A wheel rim includes a rim body and a plurality of anchor members. The rim body includes annular left and right side walls, an annular connecting wall interconnecting the left and right side walls, and annular left and right confining ribs extending respectively from the radial inner ends of the left and right side walls toward each other to define a mounting space among the left and right side walls, the connecting wall, and the confining ribs. The confining ribs define an opening communicated with the mounting space. The anchor members are disposed fixedly within the mounting space. Each of the anchor members has a bottom wall abutting against the confining ribs and having a first mounting hole which is adapted to permit extension of a respective one of the spoke units therethrough.
Abstract:
A lightweight wheel rim includes a pair of annular side walls, an annular inner wall, and two annular angle elements. The angle elements are disposed respectively at two opposite sides of the inner wall. Each of the angle elements has two opposite sides that are formed respectively and integrally with the inner wall and a radial inner end of a corresponding one of the side walls, and a plurality of alternately arranged mounting portions and dented portions. Each of the mounting portions has a mounting hole for extension of a spoke unit therethrough.
Abstract:
A wheel rim includes a rim body and a plurality of anchor members. The rim body includes annular left and right side walls, an annular connecting wall interconnecting the left and right side walls, and annular left and right confining ribs extending respectively from the radial inner ends of the left and right side walls toward each other to define a mounting space among the left and right side walls, the connecting wall, and the confining ribs. The confining ribs define an opening communicated with the mounting space. The anchor members are disposed fixedly within the mounting space. Each of the anchor members has a bottom wall abutting against the confining ribs and having a first mounting hole which is adapted to permit extension of a respective one of the spoke units therethrough.
Abstract:
A bicycle wheel rim has spaced-apart annular tire retaining walls, and a reinforced base wall interconnecting the tire retaining walls. The base wall includes left and right corner parts, and an intermediate part extending between the corner parts. The intermediate part has a vaulted portion, which is vaulted radially, and is formed with spoke mounting holes, which are distributed between the vaulted portion and the corner parts.
Abstract:
A bicycle wheel rim includes an annular connecting wall interconnecting left and right tire retaining walls. The connecting wall has left and right wall parts, each having an outer terminating edge adjacent to a respective tire retaining wall, and an inner terminating edge, and an intermediate wall part extending between the inner terminating edges and indented radially and inwardly to define an annular receiving groove. Each of the left and right wall parts has a radial outer surface formed with an annular rib such that the radial outer surface is defined with an outer section between the rib and the outer terminating edge, and a flat inner section between the rib and the inner terminating edge. The rib has first and second stop surfaces connected respectively to the inner and outer sections.