64results about How to "Seek lightweight" patented technology

The invention provides a vehicle body structure, which reduces the weight of the left and right side sills while ensuring the strength of the left and right side sills. A vehicle body (13) includes hollow left and right side sill (66, 66). Front ends of the side sills are formed into closed cross sections and substantially inverted-L shapes. The front end (66f) of the right side sill is bilaterally symmetrical to the front end of the left side sill. Rear ends (66r) of the left and right side sills are formed into substantially square-shaped cross sections. Portions (66m) from the front ends to the rear ends of the side sills are formed into closed cross sections which change smoothly from the inverted-L shaped cross sections to the square-shaped cross sections.

The invention provides a projection zoom lens, which has nine lenses in five groups. The first group is set as simple structure with the F value of wide-angle end lower than 1.7 and field angle more than 55 degree, which can well modifies various aberration and is cheap and smart. The projection zoom lens includes a first lens group (G) having a negative reflecting power and a second to fifth lens groups (G-G) each having a positive reflecting power are provided in the order from the reduction side. Nine lenses are distributed in a manner that the first lens group (G) has one lens, the second lens group (G) has one lens, the third lens group (G) has two lenses, the fourth lens group (G) has four lenses and the fifth lens group (G) has one lens. Since the second lens group (G), the third lens group (G) and the fourth lens group (G) are moved at the time of the power-varying operation, various kinds of aberrations may be made despite of simple configuration. Furthermore, the first lens group (G) is an aspherical lens which concave surface is directed to the reduction side.

A steering apparatus of the invention includes: a fixed bracket (3); an outer column (1); an arm portion (2); a column pipe (6); a steering shaft (A) including an upper shaft (8) rotatably attached to the column pipe (6) and a lower shaft (7) which is connected by an universal joint and in which a male shaft (71) and a female shaft (72) engage with each other so as to freely extend and contract; and a fastening tool (4). The arm portion (2) includes: bifurcated arm-shaped portions (21) that extend from a front side in the axial direction of the outer column (1) toward an outer side in the axial direction; a first linking portion (22) formed between the two arm-shaped portions (21) so as to protrude upward from upper edges of the arm-shaped portions (21); and a second linking portion (23) that protrudes downward from lower edges of the arm-shaped portions (21), and the second linking portion protrudes (23) from the arm-shaped portions (21) by a larger amount than the first linking portion (22).

The objective of the riding type vehicle of the present invention is to provide a technology which may lighten a reception box and effectively utilize a rubber seat support structure of the reception box so as to reduce saddle vibration. A motor two-wheel vehicle (10) is provided with a saddle (16), a pair of saddle load supporting portions (71L, 71R) which are disposed on a saddle base plate (16) so as to transmit loads applied to the saddle (16) to one side of a vehicle body frame (21), wherein a pair of first saddle load supported portions (74L, 74R) for bearing loads from the saddle load supporting portions (71L, 71R) are disposed at the rear of a reception box (51), and first rubber seats (57, 57) are disposed to be adjacent to the first saddle load supported portions (74L, 74R).