1. A vehicle comprising:
a two-part frame comprising a first frame and a second frame, wherein the first frame and the second frame are separated by at least one swivel that allows for a side-to-side motion with respect to the longitudinal axis of the two-part frame, wherein the second frame comprises a member movable between a non-extended orientation and an extended orientation on the second frame or a member movable between a non-extended orientation and an extended orientation in a cavity or a guide on the first frame;
at least one wheel each rotably mounted on at least one axle on the first frame;
at least one wheel each rotably mounted on at least one axle on the second frame;
a riding seat reversibly attached to the second frame;
a drive mechanism coupled to the at least one wheel each rotably mounted on the at least one axle on the first frame or to the at least one wheel each rotably mounted on the at least one axle on the second frame for driving the vehicle;
at least one handlebar post attached to the first frame; and
a carrier attachable to the first frame for carrying at least one human, at least one package, or a combination thereof therein,
wherein the vehicle is in a tricycle orientation when the member is in the extended orientation and is drivable by a rider sitting on the seat and steering the vehicle with the at least one handlebar post,
wherein the vehicle is in a stroller orientation when the member is in the non-extended orientation and is drivable by a walker steering the vehicle with the at least one handlebar post.
2. The vehicle of claim 1, wherein the carrier is movable between a forward-facing orientation and a rear-facing orientation with respect to the longitudinal axis of the first frame.
3. The vehicle of claim 1, wherein the vehicle in the tricycle orientation is steered by turning the first frame on the swivel.
4. The vehicle of claim 1, wherein the vehicle in the stroller orientation is steered by depressing on the handlebar, lifting the front wheel, and turning the vehicle in the desired direction.
5. The vehicle of claim 1, wherein the drive mechanism is a chainless shaft comprising a variable speed transmission.
6. The vehicle of claim 1, wherein the drive mechanism is coupled to the at least one wheel each rotably mounted on the at least one axle on the second frame for driving the vehicle.
7. The vehicle of claim 1, wherein the at least one handlebar post attached to the first frame comprises a single handlebar with two individual mounting posts separated by a space, wherein at least a portion of the carrier is disposed in the space between the two individual mounting posts.
8. The vehicle of claim 1, wherein the at least one handlebar post comprises two individual mounting posts separated by a space, wherein at least a portion of the carrier is disposed in the space between the two individual mounting posts.
9. The vehicle of claim 1, wherein the vehicle in the tricycle orientation comprises two front wheels each rotably mounted on the at least one axle on the first frame and one wheel each rotably mounted on the at least one axle on the second frame.
10. The vehicle of claim 1, wherein the at least one swivel that allows for a side-to-side motion with respect to the longitudinal axis of the two-part frame does not allow for an up-or-down motion with respect to the longitudinal axis of the two-part frame when moving from extended orientation to the non-extended orientation.
11. A convertible cycling-stroller apparatus comprising:
a two-part frame comprising a first frame and a second frame, wherein the first frame and the second frame are separated by at least one swivel that allows for a side-to-side motion with respect to the longitudinal axis of the two-part frame, wherein the second frame comprises a member movable between a non-extended orientation and an extended orientation on the second frame or a member movable between a non-extended orientation and an extended orientation in a cavity or a guide on the first frame;
at least one wheel each ratably mounted on at least one axle on the first frame;
at least one wheel each rotably mounted on at least one axle on the second frame;
a riding seat reversibly attached to the second frame;
a drive mechanism coupled to the at least one wheel each rotably mounted on the at least one axle on the second frame for driving the convertible cycling-stroller apparatus, wherein the drive mechanism is a chainless shaft comprising a variable speed transmission;
at least one handlebar post attached to the first frame; and
a carrier attachable to the first frame for carrying at least one human, at least one package, or a combination thereof therein,
wherein the convertible cycling-stroller apparatus is in a tricycle orientation when the member is in the extended orientation and is drivable by a rider sitting on the seat, powering the drive mechanism, and steering the convertible cycling-stroller apparatus with the at least one handlebar post,
wherein the convertible cycling-stroller apparatus is in a stroller orientation when the member is in the non-extended orientation and is drivable by a walker steering the convertible cycling-stroller apparatus with the at least one handlebar post.
12. The convertible cycling-stroller apparatus of claim 11, wherein the convertible cycling-stroller apparatus in the tricycle orientation is steered by turning the first frame on the at least one swivel.
13. The convertible cycling-stroller apparatus of claim 11, wherein the at least one handlebar post attached to the first frame comprises a single handlebar with two individual mounting posts separated by a space, wherein at least a portion of the carrier is disposed in the space between the two individual mounting posts.
14. The convertible cycling-stroller apparatus of claim 11, wherein the convertible cycling-stroller apparatus comprises two front wheels each rotably mounted on the at least one axle on the first frame and one wheel rotably mounted on the at least one axle on the second frame.
15. The convertible cycling-stroller apparatus of claim 11, wherein the at least one handlebar post spatially translates with respect to the longitudinal axis of the first frame between the tricycle orientation and the stroller orientation.
16. The convertible cycling-stroller apparatus of claim 11, wherein the member is movable between the non-extended orientation and the extended orientation on the second frame by hand or with the assistance of a mechanical device.
17. The convertible cycling-stroller apparatus of claim 11, wherein the member is movable between the non-extended orientation and the extended orientation in the cavity or the guide on the first frame by hand or with the assistance of a mechanical device.
18. The convertible cycling-stroller apparatus of claim 11, wherein the at least one swivel that allows for a side-to-side motion with respect to the longitudinal axis of the two-part frame does not allow for an up-or-down motion with respect to the longitudinal axis of the two-part frame when moving from extended orientation to the non-extended orientation.
19. A convertible tricycle-stroller apparatus comprising:
a two-part frame comprising a first frame and a second frame, wherein the first frame and the second frame are separated by at least one swivel that allows for a side-to-side motion with respect to the longitudinal axis of the two-part frame, wherein the second frame comprises a member movable between a non-extended orientation and an extended orientation on the second frame or a member movable between a non-extended orientation and an extended orientation in a cavity or a guide on the first frame;
at least one wheel each rotably mounted on at least one axle on the first frame;
at least one wheel each rotably mounted on at least one axle on the second frame;
a riding seat reversibly attached to the second frame;
a drive mechanism coupled to the at least one wheel each rotably mounted on the at least one axle on the second frame for driving the convertible tricycle-stroller apparatus, wherein the drive mechanism is a chainless shaft comprising a variable speed transmission;
at least one handlebar post attached to the first frame; and
a carrier attachable to the first frame for carrying at least one human, at least one package, or a combination thereof therein,
wherein the convertible tricycle-stroller apparatus is in a tricycle orientation when the member is in the extended orientation and is drivable by a rider sitting on the seat, powering the drive mechanism, and steering the convertible tricycle-stroller apparatus with the at least one handlebar post,
wherein the convertible tricycle-stroller apparatus is in a stroller orientation when the member is in the non-extended orientation and is drivable by a walker steering the convertible tricycle-stroller apparatus with the at least one handlebar post,
wherein the convertible tricycle-stroller apparatus in the tricycle orientation is steered by turning the first frame on the at least one swivel,
wherein the at least one handlebar post attached to the first frame comprises a single handlebar with two individual mounting posts separated by a space, wherein at least a portion of the carrier is disposed in the space between the two individual mounting posts,
wherein the convertible tricycle-stroller apparatus comprises two front wheels each rotably mounted on the at least one axle on the first frame and one wheel rotably mounted on the at least one axle on the second frame,
wherein the at least one swivel that allows for a side-to-side motion with respect to the longitudinal axis of the two-part frame does not allow for an up-or-down motion with respect to the longitudinal axis of the two-part frame when moving from extended orientation to the non-extended orientation.
20. The convertible tricycle-stroller apparatus of claim 19, wherein the member is movable between the non-extended orientation and the extended orientation in the cavity or the guide on the first frame by hand or with the assistance of a mechanical device.
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 camera shutter, comprising:
a base plate having a shutter opening;
a shutter blade for opening and closing the shutter opening; and
a driving means for driving the shutter blade,
wherein the driving means comprises a swingably journaled swinging lever having arm portions on both sides of a rotating shaft as well as a portion connected to the shutter blade, permanent magnets provided on both ends of the arm portions, a magnet coil wound around an iron core that is fixed so as to face the permanent magnets of the both ends, and an electromagnetic drive circuit for controlling electricity conduction to the magnet coil; and
the swinging lever is operated by attractive force toward or repelling force against the permanent magnet that is generated by conduction of electricity to the magnet coil to drive the shutter blade.
2. The camera shutter according to claim 1, wherein the iron core having the magnet coil wound therearound faces inner sides of the permanent magnets of the both ends.
3. The camera shutter according to claim 1, wherein the swinging lever is operated while the permanent magnet is moved in a direction along a surface of the iron core, thereby driving the shutter blade.