Adjustable table for physical therapy

Claim 2

An adjustable table movable between a first normal position to a second raised position and between said first normal position and a third tilted position; a foot rest on said table movable between a folded out-of-the-way position and an extended usable position; and an intercoupling means between said foot rest and said table such that when said foot rest is in said folded out of the way position said table is constrained to movement only between said first normal position and said second raised position and when said foot rest is in its extended usable position said table is constrained to movement only between said first normal position and said third tilted position.

Claim 3

An adjustable table including, in combination: a. an elongated table frame; b. a foot rest pivoted at one end to said elongated table frame; and, c. means responsive to said foot rest capable of only raising and lowering said table in a vertical direction when said foot rest is in a folded out-of-the-way position and capable of only tilting said table frame when said foot rest is in an extended usable position.

Claim 4

An adjustable table including, in combination: a. an elongated table frame; b. a foot rest pivoted at one end to said elongated table frame; and, c. means responsive to said foot rest capable of only raising and lowering said table in a vertical direction when said foot rest is in a folded out-of-the-way position and capable of only tilting said table frame when said foot rest is in an extended usable position.

Claim 5

The subject matter of claim 2, in which said means responsive to said foot rest includes a sole hydraulic cylinder and piston connected to move said table frame and a locking means coupled to said foot rest for: a. constraining said table frame to vertical movement when said foot rest is in said folded out-of-the-way position so that operation of said hydraulic cylinder can only raise and lower said table frame, and b. constraining said table frame to tilting movement only when said foot rest is moved to its extended usable position so that operation of said same hydraulic cylinder can only tilt said table frame.

Claim 6

An adjustable table for physical therapy comprising, in combination: a. a fixed base; b. a platform mounted to said base for vertical movement between a first normal position and a second raised position relative to said base; c. an elongated table frame overlying said platform and transversely pivoted thereto for angular movement between said first normal position and a third tilted position; d. a foot rest transversely pivoted at one end of said elongated table frame; e. a sole hydraulic cylinder disposed beneath said platform and generally oriented vertically with its lower end pivoted to said base; f. a piston rod extending from said cylinder, said platform including a central cut-out through which said piston rod passes, the extending end of said piston rod being pivoted to the underside of said table frame at a point spaced from the pivot point of said table frame to said platform; g. locking means movable between a locked position in which said table frame is secured in a horizontal position to said platform, to an unlocked position wherein said table frame is free of said platform except where the table frame is pivoted to the platform; and, h. means coupling said locking means to said foot rest whereby when said foot rest is pivoted to a folded out-of-the-way position, said locking means is moved to its locked position and actuation of said hydraulic cylinder can be effected to raise and lower said platform and table frame as a unit between said first normal position and said second raised position, and whereby when said foot rest is pivoted to an extended position at the end of said table frame, said locking means is moved to its unlocked position and actuation of said hydraulic cylinder can be effected to cause tilting of said table between said first normal position and said third tilted position.

Claim 7

An adjustable table for physical therapy comprising, in combination: a. a fixed base; b. a platform mounted to said base for vertical movement between a first normal position and a second raised position relative to said base; c. an elongated table frame overlying said platform and transversely pivoted thereto for angular movement between said first normal position and a third tilted position; d. a foot rest transversely pivoted at one end of said elongated table frame; e. a sole hydraulic cylinder disposed beneath said platform and generally oriented vertically with its lower end pivoted to said base; f. a piston rod extending from said cylinder, said platform including a central cut-out through which said piston rod passes, the extending end of said piston rod being pivoted to the underside of said table frame at a point spaced from the pivot point of said table frame to said platform; g. locking means movable between a locked position in which said table frame is secured in a horizontal position to said platform, to an unlocked position wherein said table frame is free of said platform except where the table frame is pivoted to the platform; and, h. means coupling said locking means to said foot rest whereby when said foot rest is pivoted to a folded out-of-the-way position, said locking means is moved to its locked position and actuation of said hydraulic cylinder can be effected to raise and lower said platform and table frame as a unit between said first normal position and said second raised position, and whereby when said foot rest is pivoted to an extended position at the end of said table frame, said locking means is moved to its unlocked position and actuation of said hydraulic cylinder can be effected to cause tilting of said table between said first normal position and said third tilted position.

Claim 8

The subject matter of claim 4, in which movement of said locking means to said unlocked position further secures said platform to said base and movement of said locking means to said locked position further frees said platform from said base for vertical movement relative to said base.

Claim 9

The subject matter of claim 5, in which said locking means includes: a first block fixed to said base adjacent to the plane of said platform and having a first horizontal bore therethrough with a slot opening out of the top of said bore; a second block fixed to said platform and having a second horizontal bore therethrough in axial alignment with said first bore when said platform and table frame are in their normal first position; a third block secured to the underside of said table frame and having a third bore therethrough positioned to be in axial alignment with said first and second bores when said table frame is in said first normal position on said platform, said second block being positioned between said first and third blocks; an horizontally movable locking pin of length sufficient to be received in said first and second bores but terminating short of said third bore when said locking means is in its unlocked position, and to be received in said second and third bores but free of said first bore when said locking means is in its locked position; and an actuating rod secured to one end of said pin and of smaller diameter than said pin so that it can pass upwardly through said slot in said first bore when said locking means is in its locked position and said platform and table frame are raised, the other end of said actuating rod being coupled to said foot rest and responsive to pivoting movement of said foot rest to move said pin to positions defining said locked position and said unlocked position, said rod including a flexible section so that it can bend when said table frame is tilted relative to said platform.

Claim 10

The subject matter of claim 6, including means biasing said pin to its locked position.