I claim as my invention:
1. An exercise device having, in combination:
an elongated, two-piece base platform adapted to be placed on a flat supporting surface and comprising two elongated, generally rectangular and substantially similar box-like platform sections each having a closed upper side and narrow sidewalls and end walls having edges for engaging the supporting surface, said sidewalls and end walls defining an open lower side of each platform section;
said platform sections being positionable in end-to-end relation to form an elongated base platform and being positionable with said edges together in a closed position for transporting and storing the exercise device;
two rotary disk assemblies each having an upper disk element sized to support a user’s foot, or hand, a lower disk element mountable on one of the platform sections, and a bearing between said elements rotatably supporting the upper disk element on the lower disk element;
each of said platform sections having a longitudinal series of spaced mounting holes in the central portion of the upper side thereof and each of said lower disk elements having a lower side and a depending mounting pin on the lower side engageable in a selected one of said mounting holes to position the disk assembly on the platform section;
and selectively engageable and releasable latches on said platform sections for holding them releasably in the closed position, and a carrying handle on one of said sidewalls, said disk assemblies being sized to fit within the exercise device in said closed position with said mounting pins reversely engaged in selected mounting holds in said upper sides.
2. An exercise device as defined in claim 1 in which said disk assemblies have releasable connections on said upper disk elements, and further including elongated elastic resistance bands connectable to said releasable connections to resist movement of said upper disk elements.
3. An exercise device as defined in claim 1 further including releasable base connectors for joining said platform sections together in end-to-end relation.
4. An exercise device as defined in claim 3 wherein said releasable base connectors comprise U-shaped connecting pins, said base sections having two sets of holes for receiving ends of the base connectors with the latter straddling the adjacent end walls of the base sections.
5. An exercise device as defined in claim 1 further including a balance bar mountable in a transverse position on one of said platform sections to extend between the sidewalls thereof, said balance bar having a lower side disposed beneath the side edges of said one of the platform sections to form a balancing fulcrum for the platform section.
6. An exercise device as defined in claim 5 wherein said balance bar has a length less than the transverse spacing of said sidewalls and said sidewalls are formed with sockets on their inner sides for receiving the ends of the balance bar.
7. An exercise device as defined in claim 6 wherein each of the sockets is formed by the adjacent sides of a pair of spaced blocks fastened to the inner sides of the sidewalls.
8. An exercise device having, in combination:
an elongated platform adapted to be placed on a supporting surface and having an upper side;
two rotary disk assemblies each having an upper rotary disk element sized to support a user’s body
a longitudinal series of spaced first mounting elements on said upper side and spaced apart thereon at preselected intervals;
and a second mounting element on each of said disk assemblies that is engageable with a selected one of first mounting elements and operable, when engaged, to hold the associated disk assembly rotatably in a selected discrete exercise position on said platform;
said disk assemblies being movable to different positions on said platform to vary the spacing of the rotary disk elements during exercise.
9. An exercise device as defined in claim 8 wherein said first mounting elements are holes in said platform and are equally spaced apart longitudinally thereof, and said second mounting elements are pins carried beneath said first mounting elements and received in selected ones of said holes.
10. An exercise device as defined in claim 8 wherein each of said rotary disk elements has a first connector on one side, and further including at least one first elastic resistance element extending between and releasably secured to two of said first connectors.
11. An exercise device as defined in claim 8 wherein each of said rotary disk elements has first connectors on diametrically opposite sides, and said platform has second connectors adjacent its opposite longitudinal ends, and further including second elastic resistance elements extending between and releasably secured to said first and second connectors.
12. An exercise device as defined in claim 11 wherein said second connectors include pinholes adjacent the ends of said platform and pins attached to said second resistance elements and sized to be received releasably in said pinholes.
13. An exercise device as defined in claim 8 further including a balance bar mountable in a transverse position on the underside of said platform, said platform having means thereon for holding the balance bar in place and the bar having an underside disposed below the platform to form a balancing fulcrum for the platform.
14. An exercise device as defined in claim 8 further including a second elongated platform substantially similar to the first-mentioned platform and positionable alternatively in an exercise position in end-to-end relation with the first-mentioned platform and a closed position in side-by-side relation with the first-mentioned platform, and at least one latch for securing said platforms releasably together in the closed position for storage and transportation.
15. An exercise device as defined in claim 14 wherein said platforms have sidewalls for supporting the platforms above the surface, and defining an interior compartment in said storage position, said disk assemblies being sized to fit within the interior compartment.
16. An exercise device as defined in claim 15 further including a balance bar mountable in a transverse position on the underside of one of said platforms to extend between the sidewalls thereof, and sockets on the sidewalls holding the balance bar releasably in a fixed position on said one platform, said balance bar being removable from the sockets for storage in the interior compartment.
17. An exercise device having, in combination:
an elongated platform adapted to be placed on a supporting surface and having an upper side;
two rotary disk assemblies each having an upper rotary disk element sized to support a user’s body;
a longitudinal two mounting elements on said upper side spaced apart by a preselected interval;
and a second mounting element on each of said disk assemblies that is engageable with one of said first mounting elements and operable, when engaged, to hold the associated disk assembly rotatably in a discrete exercise position on said platform;
said disk assemblies being rotatable on said platform while weight of a user is supported by the disk assemblies
18. An exercise device as defined in claim 17 wherein each of said rotary disk elements has a first connector on one side, and further including at least one first elastic resistance element extending between and releasably secured to two of said first connectors.
19. An exercise device as defined in claim 17 wherein each of said rotary disk elements has first connectors on diametrically opposite sides, and said platform has second connectors adjacent its opposite longitudinal ends, and further including second elastic resistance elements extending between and releasably secured to said first and second connectors.
20. An exercise device as defined in claim 19 wherein said second connectors include pinholes adjacent the ends of said platform and pins attached to said second resistance elements and sized to be received releasably in said pinholes.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A locking device for a seat back, comprising:
a lock plate fixed to a vehicle body and having one or more lock holes;
a base plate fixed to a seat back;
a lock pin freely slidably supported on the base plate and urged by first urging means, the lock pin entering into one of the lock holes of the lock plate at a predetermined rising angle, thereby holding the seat back at the predetermined rising angle;
a lift lever having a first arm portion and a second arm portion and pivotally attached onto the base plate, the lift lever being urged to an initial position by second urging means; and
a guide hole formed in the lock plate, the guide hole allowing the second arm portion of the lift lever to enter thereinto when the seat back is held at a rising position,
in which, when the seat back is rotated to rise, the second arm portion is lifted up by a front end edge of the guide hole, and rotates positively from the initial position, and then enters into the guide hole while rotating reversely, whereby the first arm portion pushes up the lock pin to thereby avoid the lock pin colliding with the lock plate, and thereafter, the first arm portion permits the lock pin to enter into the lock hole,
wherein, on the base plate, there is provided a step difference portion that prevents the lift lever from rotating positively by a fact that the second arm portion of the lift lever abuts on a side edge portion of the guide hole of the lock plate when the base plate rotates forward about the lock pin along a horizontal direction in an occasion where a load is applied to the seat back from rear when the seat back is held at the rising position.
2. A locking device for a seat back, comprising:
a lock plate fixed to a vehicle body and having one or more lock holes;
a base plate fixed to a seat back;
a lock pin freely slidably supported on the base plate and urged by first urging means, the lock pin entering into one of the lock holes of the lock plate at a predetermined rising angle, thereby holding the seat back at the predetermined rising angle;
a lift lever having a first arm portion and a second arm portion and pivotally attached onto the base plate, the lift lever being urged to an initial position by second urging means; and
a guide hole formed in the lock plate, the guide hole allowing the second arm portion of the lift lever to enter thereinto when the seat back is held at a rising position,
in which, when the seat back is rotated to rise, the second arm portion is lifted up by a front end edge of the guide hole, and rotates positively from the initial position, and then enters into the guide hole while rotating reversely, whereby the first arm portion pushes up the lock pin to thereby avoid the lock pin colliding with the lock plate, and thereafter, the first arm portion permits the lock pin to enter into the lock hole,
wherein a cutout that prevents the second arm portion of the lift lever from abutting on a peripheral edge portion of the guide hole of the lock plate when the base plate rotates forward about the lock pin along a horizontal direction when the seat back is held at the rising position is provided on at least a part of or over entirety of a side edge portion of the guide hole of the lock plate on an opposite side to the lock pin among a peripheral edge of the guide hole of the lock plate.