초록 ▼

A guard for a school bus which consists of a sheet of flexible material which can be extended into an open planar state and which can be reduced into a compact folded state. A connector is connected to one edge of the sheet and is pivotally connected to a fixed portion of the school bus for movement

A guard for a school bus which consists of a sheet of flexible material which can be extended into an open planar state and which can be reduced into a compact folded state. A connector is connected to one edge of the sheet and is pivotally connected to a fixed portion of the school bus for movement between a first position in which it is effective to extend the sheet of flexible material and to a second position in which it is effective to cause the sheet of flexible material to be reduced to a its compact state. A selectively actuated driving mechanism moves the connector selectively between to the first and second positions.

대표청구항 ▼

Guard for a school bus having a supporting frame and an outer body which includes a bottom outer peripheral edge which is substantially spaced from the ground, said guard comprising: (a) a sheet of flexible material which is adapted to be extended into an open planar state and to be reduced into a c

Guard for a school bus having a supporting frame and an outer body which includes a bottom outer peripheral edge which is substantially spaced from the ground, said guard comprising: (a) a sheet of flexible material which is adapted to be extended into an open planar state and to be reduced into a compact folded state, said sheet having a bottom edge and a top edge which is attached to the bottom outer peripheral edge of the school bus body, (b) connecting means having a first end which is operatively connected to the bottom edge of said sheet and a second end which is operatively connected to said frame for movement between a bottom extended position and a top with drawn position, said first end being positioned substantially below said peripheral edge to a point which is substantially near the ground when said connecting means is in said extended position so that said sheet is fully extended from said peripheral edge to said point and said sheet occupies a substantially vertical plane, said first end being positioned substantially near said peripheral edge when said connecting means is in said withdrawn position so that said sheet is in said compact folded state near said peripheral edge, said connecting means comprising: (1) a horizontal bar which is attached to the bottom edge of said sheet, (2) an inner lever having an outer end, and an inner end which is pivotally connected to said frame for pivoting about a horizontal axis, (3) an outer lever having an inner end which is pivotally connected to the outer end of said inner lever for pivoting about a horizontal axis and an outer end which is attached to said horizontal bar, (4) a first stop which is operatively connected to one of said levers for preventing the outer lever from pivoting upwardly relative to the inner lever beyond a point where the inner and outer levers are aligned along their respective longitudinal axes, (5) a second stop which is operatively connected to one of said levers for preventing the outer lever from pivoting downwardly relative to said inner lever beyond a predetermined angular position relative to the inner lever, (6) means for biasing the outer end of said outer lever upwardly relative to said inner lever so that said inner and outer levers are axially aligned when said connecting means are in said bottom extended position, and (7) guide means for forcing the outer end of said outer lever downwardly relative to said inner lever when said levers move upwardly from said lower extended position to said top withdrawn position, so that said outer lever assumes said predetermined angular position relative to the inner lever, and (c) drive means operatively connected to said connecting means for selectively moving said connecting means to said extended position and said withdrawn position.