Abstract: A sit box for use on a reformer exercise apparatus carriage is a unitary body having a rectangular flat top surface portion joining four curved portions. Each curved portion merges with one of an upright front wall, an upright back wall, an upright left side wall, and an upright right side wall. The walls terminate at a generally flat rectangular bottom parallel to the top surface portion. Each wall curves to merge with an adjacent wall. Each of the left and right side walls has an outwardly open vertical recess therein adjacent the front wall to receive within each recess one of a pair of shoulder stops projecting from the carriage.

Abstract: A frame corner member includes an elongated hollow extrusion having a central corner portion and two leg portions extending from the central portion. Each leg portion includes an inner side wall spaced from and parallel to an outer side wall, and merging with the central portion. An outer end wall joins the inner and outer side walls, which each include an inner surface facing the inner surface of the other side wall. An opening through the outer end wall defines a space between the inner and outer side walls adjacent one end of the extrusion for receiving one end of one of frame side members and end members. At least one of the inner surfaces in the space has discrete surface features adapted to grip and retain the one end of one of the side members and end members in the space when received through the opening.

Abstract: A sit box for use on a reformer exercise apparatus carriage is a unitary body having a rectangular flat top surface portion joining four curved portions. Each curved portion merges with one of an upright front wall, an upright back wall, an upright left side wall, and an upright right side wall. The walls terminate at a generally flat rectangular bottom parallel to the top surface portion. Each wall curves to merge with an adjacent wall. Each of the left and right side walls has an outwardly open vertical recess therein adjacent the front wall to receive within each recess one of a pair of shoulder stops projecting from the carriage.

Abstract: A sit box for use on a reformer exercise apparatus carriage is disclosed. The box is a unitary body having a rectangular flat top surface portion joining four curved portions. Each curved portion merges with one of an upright front wall, an upright back wall, an upright left side wall, and an upright right side wall. The walls terminate at a generally flat rectangular bottom parallel to the top surface portion. Each wall curves to merge with an adjacent wall. Each of the left and right side walls has an outwardly open vertical recess therein adjacent the front wall to receive within each recess one of a pair of shoulder stops projecting from the carriage.

Abstract: A rotatable disc exercise apparatus is disclosed that includes a first disc having a first outer planar surface and a first inner surface, a second disc fastened to the first disc and rotatably supported on the first disc by a first annular set of ball bearings and a second annular set of ball bearings. The second disc has a second outer planar surface and a second inner surface facing the first inner surface. A single biasing member sandwiched between the first and second discs resiliently biases the second disc to a neutral rotational position between the discs. The first annular set of bearings is captured between the inner surfaces by an annular outer wall of one of the discs and an inner annular rib of the other one of the discs. The second set of bearings is carried in an annular race between the first and second inner surfaces.

Abstract: A reformer exercise apparatus is disclosed that has a generally rectangular frame. The rail portions of the frame each have an upright outer wall, an integral downwardly slanted inner wall and a hidden outwardly open slot therein between the outer and inner walls. A foot bar support assembly movably carried by each of the outwardly open slots supports the foot bar. Each foot bar support assembly has an elongated slide plate movably supported within the slot, a hook plate fastened to the slide plate, and a foot bar support arm rotatably and slidably fastened to the hook plate. A pair of tubular risers each having an upper roller therein at the head end of the frame direct arm cord ends to a cord retraction assembly mounted on the carriage. The retraction assembly releases the cords by pivoting either one of the shoulder stops toward the foot end of the frame.

Abstract: A reformer exercise apparatus is disclosed that has a generally rectangular frame. The rail portions of the frame each have an upright outer wall, an integral downwardly slanted inner wall and a hidden outwardly open slot therein between the outer and inner walls. A foot bar support assembly movably carried by each of the outwardly open slots supports the foot bar. Each foot bar support assembly has an elongated slide plate movably supported within the slot, a hook plate fastened to the slide plate, and a foot bar support arm rotatably and slidably fastened to the hook plate. A pair of tubular risers each having an upper roller therein at the head end of the frame direct arm cord ends to a cord retraction assembly mounted on the carriage. The retraction assembly releases the cords by pivoting either one of the shoulder stops toward the foot end of the frame.

Abstract: A reformer exercise apparatus is disclosed that has a generally rectangular frame. The rail portions of the frame each have an upright outer wall, an integral downwardly slanted inner wall and a hidden outwardly open slot therein between the outer and inner walls. A foot bar support assembly movably carried by each of the outwardly open slots supports the foot bar. Each foot bar support assembly has an elongated slide plate movably supported within the slot, a hook plate fastened to the slide plate, and a foot bar support arm rotatably and slidably fastened to the hook plate. A pair of tubular risers each having an upper roller therein at the head end of the frame direct arm cord ends to a cord retraction assembly mounted on the carriage. The retraction assembly releases the cords by pivoting either one of the shoulder stops toward the foot end of the frame.

Abstract: A reformer exercise apparatus is disclosed that has a generally rectangular frame. The rail portions of the frame each have an upright outer wall, an integral downwardly slanted inner wall and a hidden outwardly open slot therein between the outer and inner walls. A foot bar support assembly movably carried by each of the outwardly open slots supports the foot bar. Each foot bar support assembly has an elongated slide plate movably supported within the slot, a hook plate fastened to the slide plate, and a foot bar support arm rotatably and slidably fastened to the hook plate. A pair of tubular risers each having an upper roller therein at the head end of the frame direct arm cord ends to a cord retraction assembly mounted on the carriage. The retraction assembly releases the cords by pivoting either one of the shoulder stops toward the foot end of the frame.

Abstract: A pulley assembly for removably fastening an arm cord to an exercise apparatus is disclosed. The pulley assembly includes a yoke having a central portion and a pair of parallel leg portions, the central portion having a bore therethrough, a pulley wheel rotatably supported between the yoke leg portions by an axle, and an elongated stem having an axially extending shaft portion protruding through the bore. The shaft portion has distal end portion having an L shaped slot formed therethrough. The L shaped slot forms a hook shaped end to the shaft portion. A tapered coil spring over the shaft portion of the stem, has a small end and a large diameter around the shaft portion of the stem. The spring biases the hooked end away from an eyebolt on the exercise apparatus to keep the pulley assembly engaged with the eye bolt and hence fastened to the exercise apparatus.

Abstract: A Pilates step barrel/chair exercise apparatus has side walls and a unique elastic resistance member anchor structure fastened to each of the side walls. Each anchor structure has an anchor socket assembly fastened to one of the side walls and a removable elastic member anchor bar assembly mounted in the anchor socket assembly. The anchor socket assembly has a central tubular portion passing through the one of the side walls and a flange portion fastening the tubular portion to the side wall. The anchor bar assembly has an L shaped anchor bar, a cylindrical yoke receiving and holding a long leg of the anchor bar, and a spring bar tube rotatably fastened to a short leg of the anchor bar. The cylindrical yoke has a portion adapted to fit within a central bore of the tubular portion of the anchor socket assembly, and has a plurality of spaced radial holes therearound for engaging with and retain the anchor bar assembly in the anchor socket assembly.

Abstract: A Pilates step barrel/chair exercise apparatus has side walls and a unique elastic resistance member anchor structure fastened to each of the side walls. Each anchor structure has an anchor socket assembly fastened to one of the side walls and a removable elastic member anchor bar assembly mounted in the anchor socket assembly. The anchor socket assembly has a central tubular portion passing through the one of the side walls and a flange portion fastening the tubular portion to the side wall. The anchor bar assembly has an L shaped anchor bar, a cylindrical yoke receiving and holding a long leg of the anchor bar, and a spring bar tube rotatably fastened to a short leg of the anchor bar. The cylindrical yoke has a portion adapted to fit within a central bore of the tubular portion of the anchor socket assembly, and has a plurality of spaced radial holes therearound for engaging with and retain the anchor bar assembly in the anchor socket assembly.

Abstract: A Pilates step barrel/chair exercise apparatus has side walls and a unique elastic resistance member anchor structure fastened to each of the side walls. Each anchor structure has an anchor socket assembly fastened to one of the side walls and a removable elastic member anchor bar assembly mounted in the anchor socket assembly. The anchor socket assembly has a central tubular portion passing through the one of the side walls and a flange portion fastening the tubular portion to the side wall. The anchor bar assembly has an L shaped anchor bar, a cylindrical yoke receiving and holding a long leg of the anchor bar, and a spring bar tube rotatably fastened to a short leg of the anchor bar. The cylindrical yoke has a portion adapted to fit within a central bore of the tubular portion of the anchor socket assembly, and has a plurality of spaced radial holes therearound for engaging with and retain the anchor bar assembly in the anchor socket assembly.

Abstract: A barrel exercise apparatus in accordance with the present disclosure is a curved, partial barrel shaped body that has an upper curved surface having two portions with different radii of curvature. A removable step block may be included and may be attached to the barrel shaped body.

Abstract: A carriage for use in a reformer exercise apparatus is disclosed that has a pair of upwardly extending folding shoulder stops mounted thereto at one end and a headrest between the shoulder stops that extends outward from the carriage toward the head end of the frame. A pair of roller wheels at the head end and a pair at the foot end of the carriage support the platform. A single common axle supports the head end pair of rollers from the carriage, forms a pivot support for the folding shoulder stops, and forms part of an adjustable position support assembly for the headrest. The shoulder stops are preferably attached to a tubular sleeve that rotates on the common axle.

Abstract: A curved, partial barrel shaped body has a bottom surface shaped to rest on a portion of a planar surface such as a pad or a floor and an upper curved surface formed by a first cylindrical surface portion having a first radius of curvature about a first axis and a second cylindrical surface portion having a second radius of curvature about a second axis spaced from and parallel to the first axis. The second radius is different from the first radius of curvature. The first and second surface portions preferably tangentially merge together to form a continuous smooth, curved, upper surface with different curvatures.

Abstract: A carriage for use in a reformer exercise apparatus is disclosed that has a pair of upwardly extending folding shoulder stops mounted thereto at one end and a headrest between the shoulder stops that extends outward from the carriage toward the head end of the frame. A pair of roller wheels at the head end and a pair at the foot end of the carriage support the platform. A single common axle supports the head end pair of rollers from the carriage, forms a pivot support for the folding shoulder stops, and forms part of an adjustable position support assembly for the headrest. The shoulder stops are preferably attached to a tubular sleeve that rotates on the common axle.

Abstract: A Pilates step barrel/chair exercise apparatus has side walls and a unique elastic resistance member anchor structure fastened to each of the side walls. Each anchor structure has an anchor socket assembly fastened to one of the side walls and a removable elastic member anchor bar assembly mounted in the anchor socket assembly. The anchor socket assembly has a central tubular portion passing through the one of the side walls and a flange portion fastening the tubular portion to the side wall. The anchor bar assembly has an L shaped anchor bar, a cylindrical yoke receiving and holding a long leg of the anchor bar, and a spring bar tube rotatably fastened to a short leg of the anchor bar. The cylindrical yoke has a portion adapted to fit within a central bore of the tubular portion of the anchor socket assembly, and has a plurality of spaced radial holes therearound for engaging with and retain the anchor bar assembly in the anchor socket assembly.

Abstract: A barrel exercise apparatus in accordance with the present disclosure is a curved, partial barrel shaped body that has an upper curved surface having two portions with different radii of curvature. A removable step block may be included and may be attached to the barrel shaped body.