Baggage cart

Claim 2

A baggage cart comprising: a frame supported by a plurality of road engageable wheels; a rotatable platform supported by a plurality of road engageable wheels; a rotatable platform supported on said frame; means for releasably locking the platform to said frame in a plurality of angularly disposed positions including: a plurality of circumferentially spaced apart, stop members on said frame; a plurality of circumferentially spaced lock members on said platform; said lock members and said stop members being relatively vertically movable between inoperative spaced apart positions and operative engaging positions such that one of said lock members and one of said upstanding members prevent rotation of said platform in one direction only and another of said lock members and another of said stop members prevent rotation of said platform in the opposite direction only; and means for simultaneously vertically moving either one of said plurality of lock members or said plurality of stop members relative to the other to relatively move sAid stop members and said lock members between said inoperative positions and said operative positions and selectively permit rotation of said platform.

Claim 3

The baggage cart as set forth in claim 1 wherein said locking means includes generally horizontal support rod means mounted on said platform for rotating movement; said lock members being mounted on said support rod means for movement therewith between raised positions in which said lock members vertically clear said stop members and operative locking positions engaging said stop members to prevent rotation of said platform in either direction.

Claim 4

The cart as set forth in claim 1 wherein said stop members comprises circumferentially spaced, upstanding posts; said lock members being oppositely circumferentially disposed relative to each other so as to exert circumferentially opposite forces on said posts.

Claim 5

The cart as set forth in claim 1 including means for selectively rotating said support rod means about the axis thereof in an oscillatory path.

Claim 6

The cart as set forth in claim 4 wherein said means for rotating said support rod means comprises actuable lever means movably mounted at the peripheral portion of said platform, radially outwardly of said stop members and linkage means is provided reacting between said lever means and said support rod means to rotate said rod means when said lever means is moved.

Claim 7

The cart as set forth in claim 1 wherein said stop members and said lock members are so positioned relative to each other that at least said one lock member will engage and be forced upwardly by said another stop member to said raised position when said platform is rotated in one direction and at least one lock member will engage and be forced upwardly by said one stop member when said platform is rotated in the opposite direction.

Claim 8

A baggage cart comprising: a frame supported by a plurality of road engageable wheels; a rotatable platform supported by said frame; means for releasably locking the platform to said frame in a plurality of angularly disposed positions including: at least a pair of circumferentially spaced stop members mounted on one of said frame and said platform; at least a pair of circumferentially spaced lock members mounted on the other of said frame and said platform; said lock members being mounted for vertical swinging movement between inoperative positions in which they vertically clear said stop members and permit rotation of said platform and operative locking positions engaging said stop members to prevent rotation of said platform; one of said lock members preventing rotation of said platform in one direction and the other of said lock members preventing rotation in the opposite direction; means yieldably urging said lock members to said operative positions; and means for vertically moving at least one of said lock members to said inoperative position to permit rotation of said platform in either direction between said angularly disposed positions; said stop members being positioned such that said other lock member will engage and be cammed vertically from said locking position to said inoperative position by any of said stop members to vertically clear said stop members as said platform is rotated in said one direction while said one lock member will engage any of said stop members and be cammed vertically thereby from said locking position to said inoperative position to vertically clear said stop members when said platform is rotated in said opposite direction; said yieldable means being operative to return said lock members to said operative positions when said platform has been rotated sufficiently so that said lock members circumferentially clear the stop members.

Claim 9

A baggage cart comprising: a frame supported by a plurality of road engageable wheels; a rotatable platform supported by said frame; means for releasably locking the platform to said frame in a plurality of angularly disposed positions including: at least a pair of circumferentially spaced stop members mounted on one of said frame and said platform; at least a pair of circumferentially spaced lock members mounted on the other of said frame and said platform; said lock members being mounted for vertical swinging movement between inoperative positions in which they vertically clear said stop members and permit rotation of said platform and operative locking positions engaging said stop members to prevent rotation of said platform; one of said lock members preventing rotation of said platform in one direction and the other of said lock members preventing rotation in the opposite direction; means yieldably urging said lock members to said operative positions; and means for vertically moving at least one of said lock members to said inoperative position to permit rotation of said platform in either direction between said angularly disposed positions; said stop members being positioned such that said other lock member will engage and be cammed vertically from said locking position to said inoperative position by any of said stop members to vertically clear said stop members as said platform is rotated in said one direction while said one lock member will engage any of said stop members and be cammed vertically thereby from said locking position to said inoperative position to vertically clear said stop members when said platform is rotated in said opposite direction; said yieldable means being operative to return said lock members to said operative positions when said platform has been rotated sufficiently so that said lock members circumferentially clear the stop members.

Claim 10

A baggage cart comprising: a frame supported by a plurality of road engageable wheels; a rotatable platform supported by said frame for rotation about a vertical axis; means for releasably locking the platform to the framE in a plurality of angularly disposed positions including: a plurality of circumferentially spaced stop members on said frame; generally horizontal, support rod means mounted on said platform for rotating movement; means for selectively rotating said rod means about the axis thereof in an oscillatory path; a plurality of circumferentially spaced lock members, mounted on said rod means for rotating movement therewith between inoperative positions in which said lock members vertically clear said stop members and permit rotation of said platform in either direction, and operative locking positions in which said lock members engage a plurality of said stop members to prevent rotation of said platform in either direction; means yieldably urging said lock members toward said locking positions; and reinforcing means for inhibiting bowing of said rod means when torque is exerted on said platform and said lock members engage said stop members, including projection means mounted on said rod means opposite said lock members for upward movement in a path toward said platform to a position bearing against said platform, and transmitting forces thereto when said lock members are in said operative positions.

Claim 11

A baggage cart comprising: a frame supported by a plurality of road engageable wheels; a rotatable platform supported by said frame for rotation about a vertical axis; means for releasably locking the platform to the framE in a plurality of angularly disposed positions including: a plurality of circumferentially spaced stop members on said frame; generally horizontal, support rod means mounted on said platform for rotating movement; means for selectively rotating said rod means about the axis thereof in an oscillatory path; a plurality of circumferentially spaced lock members, mounted on said rod means for rotating movement therewith between inoperative positions in which said lock members vertically clear said stop members and permit rotation of said platform in either direction, and operative locking positions in which said lock members engage a plurality of said stop members to prevent rotation of said platform in either direction; means yieldably urging said lock members toward said locking positions; and reinforcing means for inhibiting bowing of said rod means when torque is exerted on said platform and said lock members engage said stop members, including projection means mounted on said rod means opposite said lock members for upward movement in a path toward said platform to a position bearing against said platform, and transmitting forces thereto when said lock members are in said operative positions.