Abstract: A first reclining back is pivotally connected to a first seat section. The first back is shiftable to a predetermined position in which the first back is coplanar with the first seat section. The first seat section and back constitute a first seat. A first armrest is detachably connected to the first seat. A second reclining back is pivotally connected to a second seat section. The second back is shiftable to a predetermined position in which the second back is coplanar with the second seat section. The second seat section and back constitute a second seat, which is spaced from the first seat. A second armrest is detachably connected to the second seat. The first and second armrests having been detached from the first and second seats can be used to fill the gap between the first and second seats to form a substantially-flat surface in conjunction with the first and second seats when the first and second backs are in their predetermined positions.

Abstract: A seat device comprises a pair of main seat portions which can be turned backwards and arranged close to each other, a pair of main seat back portions projecting upwardly from the main seat portions, respectively, a pair of auxiliary seat portions attached to both sides of each main seat portion, and a pair of auxiliary seat back portion attached to both sides of each main seat back portion. All the auxiliary seat back portions and the seat portions are movable between an extended position and an unextended position. The seat device is suitable for use in a van type automotive vehicle.

Abstract: A carburetor includes means for detecting the volume of a first fuel such as gasoline within a float chamber, and valve means for preventing a second fuel such as LPG from being fed into an induction passage leading to an engine when the volume of the first fuel within the float chamber is above a predetermined value. The second fuel is prevented from being fed into the induction passage until the volume of the first fuel within the float chamber is decreased to a small amount or zero. Thus, the air-fuel mixture within the induction passage is not enriched too much after the fuel supply is changed from the first fuel to the second fuel.