A method of making a bicycle frame includes placing an impact resistant film into one or more portions of a bicycle frame mold. The method also includes placing a plurality of layers of carbon fiber into the bicycle frame mold. The method further includes applying heat to the bicycle frame mold to form a bicycle frame that has an exterior surface, wherein at least a portion of the exterior surface is covered by the impact resistant film.

A method of making a bicycle frame includes placing an impact resistant film into one or more portions of a bicycle frame mold. The method also includes placing a plurality of layers of carbon fiber into the bicycle frame mold. The method further includes applying heat to the bicycle frame mold to form a bicycle frame that has an exterior surface, wherein at least a portion of the exterior surface is covered by the impact resistant film.

A structure comprising: (i) a fiber and resin matrix material layer at least partially forming a hollow section of the structure; and (ii) a foamable material layer in direct planar contact with the fiber and resin matrix material layer, the foamable material layer at least partially filling the hollow section.

An arrangement for a bicycle frame including a housing for a member, the housing being connected to or a part of a first bicycle frame part, characterized in that the arrangement further includes a member at least partly insertable into the housing, the member being interlocked in place by another housing connected to or a part of a second bicycle frame part, wherein the housings are situated such that at least one of the housings is adjacent to a seam of the first and second bicycle frame parts adjoined together and further such that the member when inserted to the housings crosses transversally the adjacent seam. A bicycle frame and a corresponding method of manufacture are also presented.

A hybrid composite comprising a thermoplastic or thermoset matrix in which brittle and ductile fibers are present, wherein the fibers are configured such that the ductile fibers of the hybrid composite dissipate energy at a impact or overload by plastic deformation of the ductile fibers and show residual properties after impact or overload.

A hybrid composite comprising a thermoplastic or thermoset matrix in which brittle and ductile fibers are present, wherein the fibers are configured such that the ductile fibers of the hybrid composite dissipate energy at a impact or overload by plastic deformation of the ductile fibers and show residual properties after impact or overload.

A seat rail installed on a vehicle body of a motorcycle. The seat rail includes a lateral member located on a lateral side in a width direction of the vehicle body, the lateral member has a laminated structure in which a sheet material including one layer made of a fiber reinforced resin or a plurality of layers made of a fiber reinforced resin and laminated to each other is folded back and doubly overlapped, and a folded edge part formed by folding back the sheet material is located at a lower edge part of the lateral member. The present invention also relates to a method of manufacturing such a seat rail.

To provide a moving device that can be used as a mobility device to transport objects and can be improved in portability. The moving device that is movable with rotation of wheels includes a body unit inflated by injection of fluid and deflated by discharge of the fluid, a support body provided on a predetermined surface of the body unit, and the wheels provided in the support body, wherein the interior of a predetermined portion of the body unit that receives a load from an object contacting the body unit is formed with a drop-stitch structure, and the drop-stitch structure after injection of the fluid has tensile forces in directions approximately perpendicular to the direction of the load applied to the predetermined portion by the object.

A seat rail installed on a vehicle body of a motorcycle. The seat rail includes an upper lateral member located on a lateral side in a width direction of the vehicle body and made of a fiber reinforced resin, the upper lateral member including a lower flange that protrudes in the width direction of the vehicle body from a lower edge of the upper lateral member. Furthermore, the seat rail includes a lower lateral member located downward from the upper lateral member and made of metal, and a lower surface of the lower flange of the upper lateral member is joined to an upper surface of the lower lateral member by adhesive.

A seat rail installed on a vehicle body of a motorcycle. The seat rail includes an upper lateral member located on a lateral side in a width direction of the vehicle body and made of a fiber reinforced resin, the upper lateral member including a lower flange that protrudes in the width direction of the vehicle body from a lower edge of the upper lateral member. Furthermore, the seat rail includes a lower lateral member located downward from the upper lateral member and made of metal, and a lower surface of the lower flange of the upper lateral member is joined to an upper surface of the lower lateral member by adhesive.