Buggy with a collapsible frame

A collapsible buggy comprising a sliding tube with a buggy handle, an elongated buggy scissor part parallel to said sliding tube, a frame scissor part, support means connected to said buggy scissor part, pivot means pivotably mounting said frame scissor part on said support means to thereby provide for relative pivotal movement between said buggy scissor part and said frame scissor part, said support means slidably supporting said sliding tube, a seating means comprising an elongated seating tube pivotally connected to said frame scissor part and to said sliding tube, said seating means further comprising an arm rest means pivotally connected to said sliding tube and to said seating tube, a foot rest means pivotably connected to said seating tube, and adjustable mounting means for adjustably mounting said handle on said sliding tube, said adjustable mounting means comprising telescopically disposed longitudinal end sections on said sliding tube and on said handle which provide for relative longitudinal slidable movement between said sliding tube and said handle, said adjustable mounting means further comprising locking means on said sliding tube and on said handle for locking said handle in a desired fixed longitudinal position on said sliding tube, said telescopically disposed longitudinal end section on said handle having a plurality of spaced locking receiving means, said adjustable mounting means comprising an inner sleeve fixed to said telescopically disposed longitudinal end section on said sliding tube, said sleeve having an extended inner sleeve portion disposed about said telescopically disposed longitudinal end section on said handle, said extended inner sleeve portion having locking projections receivable in said locking receiving means in said telescopically disposed longitudinal end section on said handle to lock said handle in the desired adjusted position, said adjustable mounting means further comprising an outer sleeve disposed about said inner sleeve, said outer sleeve being longitudinally slidable on said inner sleeve to a locking position in which the outer sleeve prevents said locking projections from coming out of said locking receiving means and an unlocking position in which said projections are free to come out of said locking receiving means, said adjustable mounting means further comprising biasing means biasing said outer sleeve toward said locking position, said outer sleeve having a stop-shoulder, said inner sleeve having a counter-shoulder which is engaged by said stop shoulder when said outer sleeve is in said locking position.

A collapsible buggy comprising a sliding tube with a buggy handle, an elongated buggy scissor part parallel to said sliding tube, a frame scissor part, support means connected to said buggy scissor part, pivot means pivotably mounting said frame scissor part on said support means to thereby provide for relative pivotal movement between said buggy scissor part and said frame scissor part, said support means slidably supporting said sliding tube, a seating means comprising an elongated seating tube pivotally connected to said frame scissor part and to said sliding tube, said seating means further comprising an arm rest means pivotably connected to said sliding tube and to said seating tube, a foot rest means pivotably connected to said seating tube, and adjustable mounting means for adjustably mounting said handle on said sliding tube, said adjustable mounting means comprising telescopically disposed longitudinal end sections on said sliding tube and on said handle which provide for relative longitudinal slidable movement between said sliding tube and said handle, said adjustable mounting means further comprising locking means on said sliding tube and on said handle for locking said handle in a desired fixed longitudinal position on said sliding tube, said telescopically disposed longitudinal end section on said handle having a plurality of spaced locking receiving means, said adjustable mounting means comprising an inner sleeve fixed to said telescopically disposed longitudinal end section on said sliding tube, said sleeve having an extended inner sleeve portion disposed about said telescopically disposed longitudinal end section on said handle, said extended inner sleeve portion having locking projections receivable in said locking receiving means in said telescopically disposed longitudinal end section on said handle to lock said handle in the desired adjusted position, said telescopically disposed longitudinal end section on said sliding tube having an internal diameter, said telescopically disposed longitudinal end section on said handle having an external diameter greater than said internal diameter of said telescopically disposed longitudinal end section on said sliding tube such as to provide an annular space between said telescopically disposed longitudinal end section on said sliding tube and said telescopically disposed longitudinal end section on said handle, said extended sleeve portion of said sleeve having an inner diameter substantially equal to the outer diameter of said telescopically disposed longitudinal end section on said handle such that said extended sleeve portion slidably and rotatably receives said telescopically disposed longitudinal end section on said handle.

A collapsible buggy comprising a sliding tube with buggy handle, an elongated buggy scissor part parallel to said sliding tube, a frame scissor part, support means connected to said buggy scissor part, pivot means pivotably mounting said frame scissor part on said support means to thereby provide for relative pivotal movement between said buggy scissor part and said frame scissor part, said support means slidably supporting said sliding tube, a seating means comprising an elongated seating tube pivotally connected to said frame scissor part and to said sliding tube, said seating means further comprising an arm rest means pivotably connected to said sliding tube and to said seating tube, a foot rest means pivotably connected to said seating tube, and adjustable mounting means for adjustably mounting said handle on said sliding tube, said adjustable mounting means comprising telescopically disposed longitudinal end sections on said sliding tube and on said handle which provide for relative longitudinal slidable movement between said sliding tube and said handle, said adjustable mounting means further comprising locking means on said sliding tube and on said handle for locking said handle in a desired fixed longitudinal position on said sliding tube, said support means comprising a support structure having a slide passage for slidably supporting said sliding tube, said support structure having a recess communicating with said slide passage, a knob in said recess, said knob being movable between a lock position and a release position, biasing means biasing said knob towards said lock position, said knob having a groove and an indentation leading off of said groove, a projection projecting from said sliding tube, said knob when in said lock position being operable to position said indentation to receive said projection to thereby prevent sliding movement of said sliding tube in said slide passage, said knob being manually moveable from said lock position to said release position against the bias of said biasing means to thereby position said indentation out of engagement with said projection to enable said sliding tube to slide in said sliding passage.

A collapsible buggy comprising a sliding tube with a buggy handle, an elongated buggy scissor part parallel to said sliding tube, a frame scissor part, support means connected to said buggy scissor part, pivot means pivotably mounting said frame scissor part on said support means to thereby provide for relative pivotal movement between said buggy scissor part and said frame scissor part, said support means slidably supporting said sliding tube, a seating means comprising an elongated seating tube pivotally connected to said frame scissor part and to said sliding tube, said seating means further comprising an arm rest means pivotably connected to said sliding tube and to said seating tube, a foot rest means pivotably connected to said seating tube, and adjustable mounting means for adjustably mounting said handle on said sliding tube, said adjustable mounting means comprising telescopically disposed longitudinal end sections on said sliding tube and on said handle which provide for relative longitudinal slidable movement between said sliding tube and said handle, said adjustable mounting means further comprising locking means on said sliding tube and on said handle for locking said handle in a desired fixed longitudinal position on said sliding tube, said arm rest means comprising an arm rest member having a front recess and support means for supporting a play frame in said front recess, said support means being operable to permit said play frame to be readily removed from said front recess, said support means comprising an elbow lever pivotably mounted on said arm rest member, said elbow lever having an upper leg and a lower leg, said play frame being disposed in said front recess and having an inner end with a locking depression, said upper leg of said elbow lever having a hook, said elbow lever being pivotable between a locking position and a release position, said hook on said upper leg of said elbow lever engaging said locking depression on said play frame when said locking lever is in said locking position, said hook on said upper leg of said elbow lever being disengaged from said locking depression on said play frame when said locking lever is in said release position, and biasing means engaging said lower leg of said elbow lever for biasing said elbow lever toward said locking position.

A collapsible buggy comprising a sliding tube with a buggy handle, an elongated buggy scissor part parallel to said sliding tube, a frame scissor part, support means connected to said buggy scissor part, pivot means pivotably mounting said frame scissor part on said support means to thereby provide for relative pivotal movement between said buggy scissor part and said frame scissor part, said support means slidably supporting said sliding tube, a seating means comprising an elongated seating tube pivotally connected to said frame scissor part and to said sliding tube, said seating means, further comprising an arm rest means pivotably connected to said sliding tube and to said seating tube, a foot rest means pivotably connected to said seating tube, and adjustable mounting means for adjustably mounting said handle on said sliding tube, said adjustable mounting means comprising telescopically disposed longitudinal end sections on said sliding tube and on said handle which provide for relative longitudinal slidable movement between said sliding tube and said handle, said adjustable mounting means further comprising locking means on said sliding tube and on said handle for locking said handle in a desired fixed longitudinal position on said sliding tube, said footrest means comprising footrest side legs, and tilt adjustment means disposed on said footrest side legs and on said seating tube for adjusting the angular tilt position of said footrest side legs relative to said seating tube, said tilt adjustment means comprising a first annular joint shell connected to said seating tube, a second annular joint shell connected to said footrest side leg, said first annular joint shell having a plurality of first shell teeth disposed about a first axis, said second annular joint shell having a plurality of second shell teeth disposed about a second axis which is aligned with said first axis, an intermediate gear having a plurality of intermediate gear teeth disposed about an intermediate gear axis aligned with said first and second axes, said intermediate gear being axially slidable to a locking position in which said intermediate gear teeth engage said first and second shell teeth to preclude relative rotation between said first and second annular joint shells, said intermediate gear being axially slidable from said locking position to a release position in which said intermediate gear teeth are released from engagement with said shell teeth of one of said first and second joint shells to thereby permit relative rotation between said first and second joint shells, biasing means biasing said intermediate gear to said locking position, and manually operated pushbutton means operable to move said intermediate gear from said locked to said released position against the bias of said biasing means.

A collapsible buggy comprising a sliding tube with a buggy handle, an elongated buggy scissor part parallel to said sliding tube, a frame scissor part, support means connected to said buggy scissor part, pivot means pivotably mounting said frame scissor part on said support means to thereby provide for relative pivotal movement between said buggy scissor part and said frame scissor part, said support means slidably supporting said sliding tube, a seating means comprising an elongated seating tube pivotally connected to said frame scissor part and to said sliding tube, said seating means further comprising an arm rest means pivotably connected to said sliding tube and to said seating tube, a foot rest means pivotably connected to said seating tube, and adjustable mounting means for adjustably mounting said handle on said sliding tube, said adjustable mounting means comprising telescopically disposed longitudinal end sections on said sliding tube and on said handle which provide for relative longitudinal slidable movement between said sliding tube and said handle, said adjustable mounting means further comprising locking means on said sliding tube and on said handle for locking said handle in a desired fixed longitudinal position on said sliding tube, said buggy scissor part having a vertical tube section, an outer bearing sleeve rotatably disposed about said vertical tube section, a bearing box structure, a buggy wheel rotatably supported on said bearing box structure, said buggy wheel having an axis of rotation, pivot means pivotably supporting said bearing box structure on said outer bearing sleeve for pivotal movement about a pivotal axis parallel to said axis of rotation, and biasing means between said bearing box structure and said outer bearing sleeve biasing said bearing box structure in one pivotal direction about said pivotal axis, an inner sleeve bearing fixed to said vertical tube section, said inner tube bearing being rotatably received in said outer sleeve bearing, said inner tube bearing having a collar having a locking recess, and a locking ring disposed about said outer sleeve bearing, said locking ring being axially slidably and non-rotatably mounted on said outer sleeve bearing, said locking ring being axially slidable to a locking position in which said locking ring engages said locking recess on said collar to thereby prevent relative rotation between said inner and outer sleeve bearings, said locking ring being axially slidable from said locking position to a release position in which said locking ring is released from said locking recess in said collar and said inner sleeve bearing is thereby free to rotate relative to said outer sleeve bearing.