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An exercise arm assembly for mounting on an exercise machine frame has a main arm, a swing arm, and a handle. The main arm has a first end for pivoting on a frame of the machine to pivot about a first pivot axis. The swing arm has a first end pivoted to the second end of the main arm for pivoting ab

An exercise arm assembly for mounting on an exercise machine frame has a main arm, a swing arm, and a handle. The main arm has a first end for pivoting on a frame of the machine to pivot about a first pivot axis. The swing arm has a first end pivoted to the second end of the main arm for pivoting about a second pivot axis. The handle is pivoted to the swing arm for pivoting about a third pivot axis, with each pivot axis being perpendicular to the other two pivot axes to form a perpendicular, tri-pivot arm system.

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We claim: 1. An exercise machine, comprising: a support frame; a seat supported on the frame; a pair of exercise arm assemblies pivotally secured to the frame to extend on opposite sides of the seat; each arm assembly having a main arm, an elongate swing arm, and a handle; each main arm having a fi

We claim: 1. An exercise machine, comprising: a support frame; a seat supported on the frame; a pair of exercise arm assemblies pivotally secured to the frame to extend on opposite sides of the seat; each arm assembly having a main arm, an elongate swing arm, and a handle; each main arm having a first end and a second end, a first pivot connection pivotally connecting the main arm to the frame for pivoting about a first pivot axis; each swing arm having a first end and a second end; the main arms are pivoted to the frame at a first elevation, each swing arm pivoted to the respective main arm at a different elevation from the first pivot connection; a second pivot connection directly connecting the first end of the swing arm to the respective main arm for pivoting of the swing arm about a second pivot axis; each handle having a third pivot connection connecting the handle to the second end of the respective swing arm for pivoting of the handle about a third pivot axis, each pivot axis being non-parallel to the other two pivot axes; each main arm having a first bend separating the main arm into a first portion extending from the first end to the first bend and a second portion angled away from the first portion, and the swing arm has a second bend separating the swing arm into a first portion extending from the main arm to the second bend, and a second portion angled away from the second bend towards the handle; and the second pivot connection including a range limiting device for limiting the swing of the swing arm about the second pivot axis to a predetermined angular range between rest and non-rest positions, the second portion of the swing arm having a generally upward orientation in said rest position. 2. The machine according to claim 1, wherein each swing arm has an inboard side directed towards said seat and an opposite, outboard side, and at least a portion of each handle is located on the inboard side of the respective swing arm between the swing arm and seat in all exercise and rest positions of the exercise arm assemblies. 3. The machine according to claim 2, wherein the first ends of the main arms are secured together and pivoted to the frame by a single pivot connection. 4. The machine as claimed in claim 2, wherein the second pivot connection comprises a pivot bracket secured to the end of one of the arms and having a pair of spaced end plates projecting over the end of the other arm, and a pivot pin extending between the end plates along said second pivot axis and rotatably linked to the end of the other arm. 5. The machine as claimed in claim 4, wherein the range limiting device is mounted between said end plates. 6. The machine according to claim 1, wherein at least part of each swing arm is angled outwardly in said rest position. 7. The exercise machine as claimed in claim 1, wherein the swing arm is pivotable about said second pivot axis between an inner position and an outer position, and the second portion of the main arm and the first portion of the swing arm together form a straight line between said first and second bends when the swing arm is in the rest position. 8. The machine as claimed in claim 1, wherein the range limiting device comprises an arcuate slot connected to one of the arms and a pin connected to the other arm engaging in said slot, the arcuate slot defining the angular range. 9. An exercise machine, comprising: a support frame; a seat supported on the frame; a pair of exercise arm assemblies pivotally secured to the frame to extend on opposite sides of the seat; each arm assembly having a main arm, an elongate swing arm, and a handle; each main arm having a first end and a second end, and a first pivot connection pivotally connecting the main arm to the frame for pivoting about a first pivot axis; each swing arm having a first end and a second end; a second pivot connection directly connecting the first end of the swing arm to the respective main arm for pivoting of the swing arm about a second pivot axis; each handle having a third pivot connection connecting the handle to the second end of the respective swing arm for pivoting of the handle about a third pivot axis, each pivot axis being non-parallel to the other two pivot axes; the main arms being pivoted to the frame at a first elevation, each swing arm being pivoted to the respective main arm at a different elevation from the first end of the main arm; each main arm having a first bend separating the main arm into a first portion extending from the first end to the first bend and a second portion angled away from the first portion, and the swing arm has a second bend separating the swing arm into a first portion extending from the main arm to the second bend, and a second portion angled away from the second bend towards the handle; and the second pivot connection including a range limiting device for limiting the swing of the swing arm about the second pivot axis to a predetermined angular range between a rest and a non-rest position, the second portion of the swing arm having a generally upward orientation in said rest position; and each handle comprising a pivot bracket having a pivot shaft pivotally connected to said swing arm, and a grip rotatably mounted in said pivot bracket for rotation about a fourth pivot axis non-parallel to the third pivot axis. 10. The machine as claimed in claim 9, wherein each grip has at least a portion directed towards said seat. 11. An exercise machine, comprising: a support frame having a base; a seat supported on the frame; a pair of exercise arm assemblies pivotally secured to the frame to extend on opposite sides of the seat; each arm assembly having a main arm, an elongate swing arm, and a handle; each main arm having a first pivot connection pivotally connecting the main arm to the frame for pivoting of the main arm about a first pivot axis; each swing arm having a first end and a second end; a second pivot connection directly connecting the first end of the swing arm to the respective main arm for pivoting of the swing arm about a second pivot axis, the second pivot connection defining only one pivot axis and limiting pivoting of the swing arm relative to the main arm to pivoting only about said second pivot axis; each pivot axis of an exercise arm assembly being non-parallel to the other pivot axis; and each swing arm having an inboard side directed towards said seat and an opposite, outboard side, and at least a portion of each handle being located on the inboard side of the respective swing arm between the swing arm and seat in all exercise and rest positions of the exercise arm assemblies; the second pivot connection comprising a pivot bracket secured to the end of one of the arms and having a pair of spaced end plates projecting over the end of the other arm, and a pivot pin extending between the end plates along said second pivot axis and rotatably linked to the end of the other arm; the second pivot connection including a range limiting device for limiting the swing of the swing arm about the second pivot axis to a predetermined angular range, the range limiting device being mounted between said end plates; and the second pivot connection including a sleeve secured to the end of said other arm and rotatably engaged over said pivot pin, the range limiting device comprising a first part projecting from said sleeve in a direction transverse to said second pivot axis and having a notch defining said predetermined angular range, and a second part extending between said end plates and engaging transversely in said notch for travel along said notch as said swing arm rotates about said second pivot axis.