摘要:
A method for manufacturing a hollow vehicle frame part includes: removing material from a first side of a first billet to create a first inner shape of a target vehicle frame such a substantially angled faying surface remains adjacent to the first inner shape; removing material from a first side of a second billet to create a second inner shape, such that a substantially angled faying surface is left on the first side of the second billet adjacent to the second inner shape; bonding the first and second billets together at the faying surfaces such that the first and second inner shapes face each other and such that the angled faying surfaces together form a bevel-type joint; after bonding, removing material by machining from the second sides of the first and second billets to create target outer shape of the vehicle frame part.
摘要:
The present disclosure relates to a reinforced pivot pin receptacle, specifically made of plastic or other non-metal material and a method for adhering planar element to a cardboard surface, specifically wherein the planar element is made of plastic.
摘要:
A bike frame with a fixed bottle opener gusset is a bicycle frame with at least a crossbar, a vertical-frame bar, and a fixed bottle opener gusset fixedly and integrally located at an intersection of the crossbar and said vertical frame-bar. The design of the frame provides added strength and increased frame life with rugged service while further providing a user with a functional bottle opener that is useful for removing a cap from a bottle when the user is riding or not riding the bicycle.
摘要:
An optimized connection structure includes: pipe fittings (1) which is provided with radial through holes (13) about the periphery of the connecting part, multifunctional plugs (2, 20) which include: a plugging body (21) at the tail end, a groove (23) in the middle, and a large and a small positioning steps (22, 24) arranged in the inner holes of the tail ends of the pipe fittings (1), and a connecting member (3) which may be of a cast/forged composite structure, wherein an inner layer and an outer layer of metal rings (42, 41) and a plurality of radial and axial metal posts (43, 44) connecting the pipe fittings (1).
摘要:
A reinforced bicycle frame is made from a fiber-reinforced material. The reinforced bicycle frame includes a bottom bracket shell, a seat tube upwardly extending from the bottom bracket shell, a down tube forwardly extending from the bottom bracket shell, two chain stays backwardly and respectively extending from the bottom bracket shell, and a rib. The bottom bracket shell has a periphery wall defining a chamber and having two opposite lateral sides, each of which is provided with a round tube portion. The rib extends toward the round tube portions from one of a first junction between the seat tube and the down tube and a second junction between the seat tube and the chain stays so as to enhance the structural rigidity of the bottom bracket shell.
摘要:
A single-cylinder or in-line multi-cylinder engine is provided. The engine includes a crankshaft, a piston, a cylinder body, a cylinder head, and a gear change mechanism. The piston is connected to the crankshaft. A cylinder is formed in the cylinder body. The piston is housed in the cylinder. The cylinder head is attached to an end of the cylinder body. The gear change mechanism is disposed to the rear of the crankshaft. An axis of the cylinder extends upward obliquely to the rear from the crankshaft side. The axis of the cylinder passes in front of an axis of the crankshaft when viewed from a direction in which the crankshaft extends.
摘要:
A connecting structure for a vehicle for providing strength while achieving a light weight formation for the vehicle body. The connecting structure connects a sub-constituting member to a main constituting member. The main constituting member is formed in an inverse U-shaped section. A reinforcing pin extends along a connecting direction of the sub-constituting member and is provided to penetrate the main constituting member in a vicinity of the sub-constituting member. A connecting member is superposed on the main constituting member, the sub-constituting member, and the reinforcing pin, and is provided at the connecting portion for connecting the main constituting member and sub-constituting member. The connecting member is integrated to the main constituting member, the sub-constituting member and the reinforcing pin respectively by welding. Both end portions of the reinforcing pin are integrated to the main constituting member by welding.
摘要:
A pipe joining construction includes a tube, two or more extensions extended from the tube, a tube member coupled to each of the extensions so as to form a joint portion, an insert disposed in each of the tube members and the extensions and having an envelope and a foamable material disposed in the envelope, a covering having an outer layer wrapped around the joint portion and a foamable material disposed between the outer layer and the joint portion. When foamed, the foamable materials apply forces against the tube members and the extensions so as to solidly couple them together.
摘要:
An inverted tube bike frame with bottle opener gusset system is a bicycle frame with the top tube and down tube having a heightened profile with concave sidewalls and a bottle opener gusset strengthening the joint between the seat tube and the top tube. The top tube has a downwardly curved design for added mechanical strength. Other tube-members of the frame have an elongated elliptical cross-section for increased strength and impact damage resistance. The wheel base is wider than that of a standard bicycle adding to forward movement stability and rider comfort. The design of the frame provides added strength and increased frame life with rugged service.
摘要:
Disclosed is a frame body for a bicycle which is able to provide higher strength and reduce the weight of the body frame in such a way to use a carbon material even when the outer diameters of a top tube and a bottom tube are thinner same as the thickness of the tubes forming a classical type body frame. In the body frame for a bicycle, at least one tube among the top tube, the bottom tube and the seat tube is made of a carbon material outer tube of a pipe shape the diameter of which is same from one end to the other end, and an inner tube made of a carbon material in a tubular shape and having a cross section area smaller than the cross section area of the outer tube is fixedly installed in the inside of a predetermined section of the outer tube.