IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0567124
(2006-12-05)
|
등록번호 |
US-7296820
(2007-11-20)
|
발명자
/ 주소 |
- Valdez,Martin E.
- Blubaugh,James
|
출원인 / 주소 |
|
대리인 / 주소 |
Davis Wright Tremaine LLP
|
인용정보 |
피인용 횟수 :
16 인용 특허 :
16 |
초록
▼
A baby stroller for transporting an infant at speeds faster than normal walking is disclosed. This baby stroller can be folded to make it easier to stow and transport. The folding mechanism, a unique feature of the design is directed toward compactness, ease of use, reliability, and reduction in man
A baby stroller for transporting an infant at speeds faster than normal walking is disclosed. This baby stroller can be folded to make it easier to stow and transport. The folding mechanism, a unique feature of the design is directed toward compactness, ease of use, reliability, and reduction in manufacturing costs.
대표청구항
▼
We claim: 1. A foldable device frame, comprising: a front wheel; left and right side laterally spaced-apart front wheel supports, each of the left and right side front wheel supports having a forward end portion and a rearward end portion, the front wheel being mounted to the forward end portion of
We claim: 1. A foldable device frame, comprising: a front wheel; left and right side laterally spaced-apart front wheel supports, each of the left and right side front wheel supports having a forward end portion and a rearward end portion, the front wheel being mounted to the forward end portion of at least one of the front wheel supports, the left and right side front wheel supports being rotatable as a unit; left and right rear wheels; left and right side laterally spaced-apart rear wheel supports, each of the left and right side rear wheel supports having a lower end portion and an upper end portion, the lower end portions being coupled to at least one of the left and right rear wheels; left and right side laterally spaced-apart handle members, each of the left and right side handle members having a forward end portion and a rearward end portion, the left and right side handle members being rotatable as a unit, at least one of the left and right side handle members having a handle portion; and left and right side laterally spaced-apart folding assemblies, each of the left and right side folding assemblies having a first rotatable member and a second rotatable member with each rotatably coupled to a pivot member supported by the upper end portion of a corresponding one of the left and right side rear wheel supports for rotation about a common axis of rotation, the rearward end portion of a corresponding one of the left and right side front wheel supports being fixedly attached to the first rotatable member, and the forward end portion of a corresponding one of the left and right side handle members being fixedly attached to the second rotatable member, wherein the left and right folding assemblies each further include a member slidably movable relative to the corresponding one of the left and right side rear wheel supports, and the first and second rotatable members of each folding assembly further include a notch to receive the member therein when the first and second rotatable members are rotated about the pivot member to position the handle member and the front wheel support attached thereto in an unfolded state. 2. The foldable device frame of claim 1 wherein the first rotatable member and the second rotatable member of each of the left and right side folding assemblies are rotatably coupled to the pivot member for symmetric rotation about the common axis of rotation. 3. The foldable device frame of claim 1 further including a rear axle coupled to the left and right rear wheels and the lower end portions of the rear wheel supports being attached to the rear axle. 4. The foldable device frame of claim 1 wherein each of the first and second rotatable members each has an arm to which a corresponding one of the front wheel supports and the handle members is attached. 5. The foldable device frame of claim 1 wherein the pivot member is a bolt assembly. 6. The foldable device frame of claim 1 wherein the upper end portion of each of the left and right rear wheel supports includes a retainer opening within which the first and second rotatable members are rotabably retained. 7. The foldable device frame of claim 1 wherein the first rotatable member and the second rotatable member of each of the left and right side folding assemblies are configured for symmetric rotation about the common axis of rotation. 8. A foldable device for use with at least one front wheel and at least one rear wheel, comprising: left and right side laterally spaced-apart front wheel supports, each of the left and right side front wheel supports having an end portion, the front wheel supports being configured for mounting of the at least one front wheel thereto, the left and right side front wheel supports being rotatable as a unit; left and right side laterally spaced-apart rear wheel supports, each of the left and right side rear wheel supports having an end portion, the rear wheel supports being configured for mounting of the at least one rear wheel thereto, the left and right side rear wheel supports being rotatable as a unit; left and right side laterally spaced-apart handle members, each of the left and right side handle members having an end portion, the left and right side handle members being rotatable as a unit, at least one of the left and right side handle members having a handle portion; and left and right side laterally spaced-apart folding assemblies, each of the left and right side folding assemblies having a first rotatable member and a second rotatable member with each rotatably coupled to a pivot member, the pivot member being supported by the end portion of one of the front wheel support, rear wheel support and handle member of a corresponding side for rotation about a common axis of rotation, the end portion of a different one of the front wheel support, rear wheel support and handle member of the corresponding side being attached to the first rotatable member for movement therewith and the end portion of another different one of the front wheel support, rear wheel support and handle member of the corresponding side being attached to the second rotatable member for movement therewith, wherein the left and right folding assemblies each further include a movable member, and the first and second rotatable members of each folding assembly each further include a notch to receive the movable member therein when the first and second rotatable members are rotated about the pivot member to position the handle member, the front wheel support and the rear wheel support in an unfolded state. 9. The foldable device of claim 8 wherein the first rotatable member and the second rotatable member of each of the left and right side folding assemblies are rotatably coupled to the pivot member for symmetric rotation of the first rotatable member and the second rotatable member about the pivot member. 10. A foldable device for use with at least one front wheel and at least one rear wheel, comprising: left and right side laterally spaced-apart first members, each of the first members having a first end portion and a second end portion; left and right side laterally spaced-apart second members, each of the second members having a first end portion and a second end portion; left and right side laterally spaced-apart third members, each of the third members having a first end portion and a second end portion, at least one of the first end portions of the first members having a mounting portion configured for mounting of the at least one front wheel thereto, at least one of the first end portions of the second members having a mounting portion configured for mounting of the at least one rear wheel thereto, and at least one of the first end portions of the third members having a handle portion; and left and right side laterally spaced-apart folding assemblies, each of the left and right side folding assemblies having a first rotatable member and a second rotatable member with each rotatably mounted on a pivot member to pivot about the pivot member as a common axis, the second end portion of a first one of the first, second and third members of a corresponding side being attached to the first rotatable member for movement therewith, the second end portion of a different second one of the first, second and third members of the corresponding side being attached to the second rotatable member for movement therewith, and the second end portion of another different third one of the first, second and third members of the corresponding side supporting the pivot member, wherein the left and right folding assemblies each further include a movable member, and the first and second rotatable members of each folding assembly each further include a notch to receive the movable member therein when the first and second rotatable members are rotated about the pivot member to position the handle member, the front wheel support and the rear wheel support in an unfolded state. 11. The foldable device of claim 10 wherein the movable member is supported by the second end portion of the another different third one of the first, second and third members supporting the pivot member. 12. The foldable device of claim 10 wherein the first and second rotatable members are first and second plates, respectively, arranged in face-to-face juxtaposition. 13. The foldable device of claim 12 wherein the first and second plates each have a planar arm projecting therefrom and in coplanar relation therewith, the one of the second end portions attached to the first rotatable member being attached to the arm of the first plate and the one of the second end portions attached to the second rotatable member being attached to the arm of the second plate. 14. The foldable device of claim 12 wherein the first and second plates each have a central aperture and wherein the pivot member includes a bushing passing through the central apertures of the first and second plates for rotation thereabout. 15. The foldable device of claim 12 wherein the second end portion of the another different third one of the first, second and third members supporting the pivot member includes a chamber within which the first and second plates are rotatably positioned. 16. The foldable device of claim 15 wherein the second end portion of the another different third one of the first, second and third members supporting the pivot member includes laterally inward and outward wall portions defining the chamber therebetween. 17. The foldable device of claim 10 wherein the second end portion of the another different third one of the first, second and third members supporting the pivot member includes laterally inward and outward wall portions defining a chamber therebetween, the first and second rotatable members being rotatably positioned within the chamber. 18. The foldable device of claim 17 wherein the chamber has a forward opening and a rearward opening, and wherein each of the first and second rotatable members includes an attachment portion for attachment to the second end portions of the first and different second ones of the first, second and third members attached to the first and second rotatable members, the attachment portion of one of the first and second rotatable members extending forward through the forward opening and the attachment portion of the other of the first and second rotatable members extending rearward through the rearward opening. 19. A folding assembly usable with a foldable device having first, second and third frame members movable into an unfolded state, comprising: first and second rotatable members rotatably mounted on a pivot member to rotate relative to each other about the pivot member as a common axis in first and second spaced apart rotational planes, respectively, the first rotatable member being configured for attachment to a first one of the first, second and third frame members for movement therewith, the second rotatable member being configured for attachment to a different second one of the first, second and third frame members for movement therewith, and the pivot member being configured for support by a different third one of the first, second and third frame members, the folding assembly further including a movable member, and the first and second rotatable members each further include a notch to receive the movable member therein when the first and second rotatable members are rotated about the pivot member to position the first, second and third frame members in the unfolded state. 20. The folding assembly of claim 19 wherein the movable member is configured for support by the different third one of the first, second and third frame members.
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