IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0701688
(2010-02-08)
|
등록번호 |
US-8292309
(2012-10-23)
|
발명자
/ 주소 |
- Fan, Chen-Lu
- Shih, Chih-Kun
- Lin, Chun-Hsien
|
출원인 / 주소 |
- Hon Hai Precision Industry Co., Ltd.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
15 |
초록
▼
A supporting device includes a tray, a plurality of wheel assemblies, a handle, and a handgrip. The tray is configured for supporting a payload. The wheel assemblies are secured to the tray, and each wheel assembly includes a wheel. Each wheel is capable of rotating about a first axis. The wheel ass
A supporting device includes a tray, a plurality of wheel assemblies, a handle, and a handgrip. The tray is configured for supporting a payload. The wheel assemblies are secured to the tray, and each wheel assembly includes a wheel. Each wheel is capable of rotating about a first axis. The wheel assemblies are rotatable between a first position and a second position, and a distance between each wheel and the tray in the first position is smaller than a distance between each wheel and the tray in the second position. The handle is attached to the tray and configured to urge the wheel assemblies to rotate from the first position to the second position. The handgrip is attached to the tray and configured to urge the wheel assemblies to rotate from the second position to the first position.
대표청구항
▼
1. A supporting device comprising: a tray configured for supporting a payload;a plurality of wheel assemblies secured to the tray, each wheel assembly comprising a wheel, the wheel assemblies being rotatable between a first position and a second position, a distance between each wheel and the tray i
1. A supporting device comprising: a tray configured for supporting a payload;a plurality of wheel assemblies secured to the tray, each wheel assembly comprising a wheel, the wheel assemblies being rotatable between a first position and a second position, a distance between each wheel and the tray in the first position being smaller than a distance between each wheel and the tray in the second position;a handle attached to the tray and rotatable to rotate the wheel assemblies from the first position to the second position;a handgrip attached to the tray and slidable to rotate the wheel assemblies from the second position to the first position;two pivot pieces located on the tray; andtwo mounting pieces located on the tray;wherein the handle comprises two arm portions secured to the pivot pieces; the handle is rotatable relative to the pivot pieces; the handgrip comprises two arm segments secured to the pivot pieces; and the arm segments are slidable relative to the mounting pieces. 2. The supporting device of claim 1, wherein each wheel is rotatable about a first axis; each wheel assembly further comprises a bracket secured to the tray; the bracket is rotatable relative to the tray about a second axis that is parallel to the first axis; and the wheel is secured to the bracket. 3. The supporting device of claim 2, wherein each bracket comprises a bracket main wall parallel to the first axis; the tray comprises a tray main wall; each bracket is secured to the tray main wall; the bracket main wall is perpendicular to the tray main wall when each wheel assembly is in the first position and parallel to the tray main wall when each wheel assembly is in the second position. 4. The supporting device of claim 1, wherein a shaft is secured to two of the wheel assemblies to allow them to rotate simultaneously. 5. The supporting device of claim 1, wherein a connecting brace connects one wheel assembly and the handle; and the connecting brace is rotatable relative the handle and the wheel assembly. 6. The supporting device of claim 5, wherein the connecting brace defines an adjustment slot; a first fastener is inserted through the adjustment slot and secured to the handle; and the first fastener is slidable in the adjustment slot. 7. The supporting device of claim 1, wherein a first spring is secured on the handle and the tray. 8. The supporting device of claim 1, wherein each arm segment of the handgrip defines a sliding slot; a second fastener is inserted in the sliding slot of each arm segment and secured to each mounting piece; and the second fasteners are slidable in the sliding slots. 9. The supporting device of claim 1, wherein a second spring is secured between each mounting piece and each corresponding arm segment of the handgrip. 10. The supporting device of claim 1, wherein the two mounting pieces are positioned between the two pivot pieces. 11. A supporting device comprising: a tray configured for supporting a payload, the tray comprising a tray main wall;a plurality of wheel assemblies secured to the tray main wall, each wheel assembly comprising a bracket and a wheel secured to the bracket, the bracket comprises a bracket main wall, each wheel being rotatable relative to the bracket, the wheel assemblies being rotatable between a first position, where the bracket main wall is perpendicular to the tray main wall, and a second position, where the bracket main wall is parallel to the tray main wall; andan operating mechanism attached to the tray and configured to urge the wheel assemblies rotate between the first position and the second position;wherein a shaft is secured to two of the plurality of wheel assemblies to allow them to rotate simultaneously. 12. The supporting device of claim 11, wherein the operating mechanism comprises a handle and a handgrip; the handle is rotatable relative to the tray to urge the wheel assemblies to rotate from the first position to the second position; and the handgrip is slidable relative to the tray to urge the wheel assemblies to rotate from the second position to the first position. 13. The supporting device of claim 12, wherein a connecting brace connects one wheel assembly and the handle; and the connecting brace is rotatable relative the handle and the wheel assembly. 14. The supporting device of claim 13, wherein the connecting brace defines an adjustment slot; a first fastener is inserted through the adjustment slot and secured to the handle; and the first fastener is slidable in the adjustment slot. 15. The supporting device of claim 12, wherein a first spring is secured between the handle and the tray; and a second spring is secured between the handgrip and the tray. 16. The supporting device of claim 12, wherein two mounting pieces and two pivot pieces are located on the tray main wall; the handle is secured to the pivot pieces, and the handgrip is secured to the mounting pieces; and the two mounting pieces are positioned between the two pivot pieces. 17. The supporting device of claim 11, wherein each wheel is rotatable about a first axis; and the bracket is rotatable relative to the tray about a second axis that is parallel to the first axis. 18. A supporting device comprising: a tray configured for supporting a payload, the tray comprising a tray main wall;a plurality of wheel assemblies secured to the tray main wall, each wheel assembly comprising a bracket and a wheel secured to the bracket, the bracket comprises a bracket main wall, each wheel being rotatable relative to the bracket, the wheel assemblies being rotatable between a first position, where the bracket main wall is perpendicular to the tray main wall, and a second position, where the bracket main wall is parallel to the tray main wall; andan operating mechanism attached to the tray and configured to urge the wheel assemblies rotate between the first position and the second position;wherein each wheel is rotatable about a first axis; and the bracket is rotatable relative to the tray about a second axis that is parallel to the first axis.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.