A dolly has a carrying frame (1) provided with a scoop (2) which is coupled to an end of said frame in such a way that it can pivot about a pivoting axis (3). The scoop is movably coupled, by a control mechanism, to two wheel carriers which can be respectively pivoted about a bearing axis extending
A dolly has a carrying frame (1) provided with a scoop (2) which is coupled to an end of said frame in such a way that it can pivot about a pivoting axis (3). The scoop is movably coupled, by a control mechanism, to two wheel carriers which can be respectively pivoted about a bearing axis extending transversally in relation to the pivoting axis (3) of the scoop and which carry running wheels (4), in such a way that when the scoop is pivoted, the wheel carriers pivot out of a storage position oriented parallel to the carrying frame (1), into a use position which is perpendicular to the frame and in which the wheel carriers are oriented parallel to each other. The dolly is provided with an actuating handle (6) which can be pivoted about an axis parallel to the scoop axis (3) and which is movably coupled to the scoop (2) by a connecting rod (7). When the handle (6) is pivoted from an idle position into an intermediate position, the wheel carriers (5) pivot out of their storage position into their position of use, and when the handle (6) is further pivoted into an end position in which it (6) fixes the two wheel carriers (5) in a pivoting manner, a clamping force is exerted on the connecting rod (7).
대표청구항▼
The invention claimed is: 1. A dolly, comprising: a carrying frame, at one end of which is articulated a scoop configured to be pivoted about a pivot axis and is coupled for movement, via a gear mechanism, to two wheel carriers, each configured to be pivoted about a bearing axis extending transvers
The invention claimed is: 1. A dolly, comprising: a carrying frame, at one end of which is articulated a scoop configured to be pivoted about a pivot axis and is coupled for movement, via a gear mechanism, to two wheel carriers, each configured to be pivoted about a bearing axis extending transversely to the pivot axis of the scoop and carry running wheels, such that, during pivoting of the scoop, the wheel carriers are pivotable between: (i) a storage position, in which the wheel carriers are oriented parallel to the carrying frame; and (ii) a use position in which the wheel carriers are oriented perpendicular to the carrying frame and parallel to one another; an actuating handle configured to be pivoted about a handle axis extending parallel to the scoop axis, the handle engaging the two wheel carriers in the use position; and a connecting rod coupling the handle to the scoop. 2. The dolly of claim 1, further comprising a lever coupled to the connecting rod and including a plurality of arms, the arms configured to fix the wheel carriers against pivoting in the use position. 3. The dolly of claim 1, wherein when the handle is displaced from an intermediate position into an end position, the connecting rod is displaced over a dead center. 4. The dolly of claim 3, wherein the dead center corresponds to a handle pivoting position in which the handle is positioned outside a pivoting space of the running wheels. 5. The dolly of claim 1, wherein the connecting rod is elastic. 6. The dolly of claim 1, further comprising a lever coupled to the carrying frame by an elastic mounting element. 7. The dolly of claim 1, wherein the handle includes a plurality of latching elements and each of the wheel carriers includes a latching pocket, the latching elements configured to engage the latching pockets. 8. The dolly of claim 1, wherein the handle includes a plurality of collars and each of the wheel carriers includes an opening, the collars configured to engage the openings. 9. The dolly of claim 1, further comprising a lever coupled to the handle, the lever comprising a plastic material. 10. The dolly of claim 9, wherein the lever includes a groove, the connecting rod engaging the groove in the use position. 11. The dolly of claim 1, further comprising a first coupler coupling at least one of the wheel carriers to the scoop, the first coupler including radial teeth. 12. The dolly claim 1, further comprising a lever coupled to the carrying frame by a bearing, the lever further coupled to the handle. 13. The dolly of claim 1, further comprising an adjustable handgrip coupled to the carrying frame, the handgrip positioned at a first end of the carrying frame, the scoop positioned at a second end of the carrying frame. 14. The dolly of claim 13, wherein the handgrip is configured to telescopically extend from the carrying frame. 15. The dolly of claim 1, wherein the carrying frame includes a first portion and a second portion, and further comprising a crossmember coupled to the first portion and the second portion. 16. The dolly of claim 1, wherein the scoop includes a receiving surface and a plurality rollers disposed on the receiving surface. 17. The dolly of claim 1, wherein the connecting rod is subject to stressing in the use position. 18. The dolly of claim 6, wherein the lever includes a plurality of arcuate sections. 19. The dolly of claim 1, further comprising a handgrip configured to telescopically extend from the carrying frame and a crossmember coupling the handgrip to the carrying frame. 20. The dolly of claim 19, wherein the crossmember includes a plurality of connectors selectively engaging the handgrip. 21. The dolly of claim 19, wherein the crossmember includes a plurality of spring-loaded detents selectively engaging the handgrip. 22. The dolly of claim 19, wherein the crossmember includes an actuator configured to enable telescopic movement of the handgrip. 23. The dolly of claim 19, wherein the handgrip includes an arcuate shape. 24. A dolly comprising: a frame; a scoop pivotally coupled to the frame; a plurality of wheel carriers pivotally coupled to the frame, the wheel carriers being pivotal between a use position and a storage position; a plurality of wheels, each one of the wheels being carried by at least one of the wheel carriers; and a handle pivotally coupled to the frame, the handle having a handle portion configured to be positioned between the wheels when the wheel carriers have the use position. 25. The dolly of claim 24, wherein each of the wheel carriers includes a locking portion and the handle includes end sections, the end sections engaging the locking portions in the use position and fixing the wheel carriers against pivoting. 26. The dolly of claim 24, further comprising a connecting rod coupling the handle to the scoop. 27. The dolly of claim 24, further comprising a first coupler coupling at least one of the wheel carriers to the scoop, the first coupler including radial teeth. 28. The dolly of claim 24, further comprising a second coupler coupling the handle to the frame, the second coupler including a lever. 29. A dolly comprising: a frame; a scoop pivotally coupled to the frame; a plurality of wheel carriers pivotally coupled to the frame, the wheel carriers being pivotal between a use position and a storage position, each one of the wheel carriers having a wheel carrier engagement section; a plurality of wheels, each one of the wheels being carried by at least one of the wheel carriers; and a handle pivotally coupled to the frame, the handle having a handle portion, the handle portion having a plurality of engagement sections, each one of the engagement sections being configured to be engaged with one of the wheel carrier engagement sections. 30. The dolly of claim 29, wherein the handle includes a handle portion configured to be positioned between the wheels when the wheel carriers have the use position and to fix the wheel carriers against pivoting. 31. The dolly of claim 29, further comprising a connecting rod coupling the handle to the scoop. 32. The dolly of claim 29, further comprising a first coupler coupling at least one of the wheel carriers to the scoop, the first coupler including radial teeth. 33. The dolly of claim 29, further comprising a second coupler coupling the handle to the frame, the second coupler including a lever.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (9)
DeMars Robert A. ; Cline Jack B., Collapsible dolly.
Herbault, Patrick; Marques, Frédéric; Saulnier, Fabien, Convertible transport trolley having a pair of fold-away legs and simultaneously fold-away wheels.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.