Abstract: A spring rubber seat provided between a spring formed by winding a wire rod to elastically support a chassis and a spring seat where the spring is placed. The spring rubber seat includes an arc seat portion having a seat surface where the spring is seated; and a link portion that links one circumferential end with the other circumferential end of the seat portion to make the spring rubber seat in an annular shape.

Abstract: A spring rubber seat provided between a spring formed by winding a wire rod to elastically support a chassis and a spring seat where the spring is placed. The spring rubber seat includes an arc seat portion having a seat surface where the spring is seated; and a link portion that links one circumferential end with the other circumferential end of the seat portion to make the spring rubber seat in an annular shape.

Abstract: A strut type shock absorber (1) comprises an outer shell (2) and a knuckle bracket (3). A curved portion (4) of the knuckle bracket (3) positioned in close contact with the outer shell (2) comprises a reinforcing flange (7) formed by bending a part of an axial end of the curved portion (4) outward and a no-flange portion (6), both of which are welded onto the outer shell (2). By setting an axial distance (H) from an inflection start point to an inflection end point of the outer circumferential surface of the reinforcing flange (7) to be equal to an axial distance from the inflection start point to the no-flange portion (6), and by forming an insulation portion (9) between the reinforcing flange (7) and the no-flange portion (6), an effectual welding operation and the prevention of molten metal from flowing over the reinforcing flange (7) during welding are realized.

Abstract: A strut type shock absorber (1) comprises an outer shell (2) and a knuckle bracket (3). A curved portion (4) of the knuckle bracket (3) positioned in close contact with the outer shell (2) comprises a reinforcing flange (7) formed by bending a part of an axial end of the curved portion (4) outward and a no-flange portion (6), both of which are welded onto the outer shell (2). By setting an axial distance (H) from an inflection start point to an inflection end point of the outer circumferential surface of the reinforcing flange (7) to be equal to an axial distance from the inflection start point to the no-flange portion (6), and by forming an insulation portion (9) between the reinforcing flange (7) and the no-flange portion (6), an effectual welding operation and the prevention of molten metal from flowing over the reinforcing flange (7) during welding are realized.

Abstract: Lead-free, high-octane gasoline is disclosed which is so composed as to have specified distillation and composition characteristics. The gasoline is excellent with respect to stability to ambient conditions, acceleration over a wide range of running speeds, and startability and warmup at low temperature.

Abstract: Electric heating means is arranged in the bottom portion of one case body, and an air bath tank and a sample heating tank, communicating with each other, are formed within this case body. The temperature of air in the air bath tank is maintained at a predetermined level by a temperature detecting element and a temperature controlling device. A filter paper is held in the air bath tank by supporting means at a position above the heating means spaced by a predetermined distance from the heating means. A heavy oil sample heated at a predetermined temperature for a predetermined time in the sample heating tank is dropped on the filter paper and the filter paper is dried for a predetermined time. The stability of the heavy oil is evaluated based on the state of spreading of the dropped heavy oil on the filter paper.