초록 ▼

A rapidly collapsible stand includes a base frame, a pair of pivot members pivotally connected to a first side of the base frame, a first supporting frame connected to the pivot members, a first supporting unit pivotally connected between the base frame and the first supporting frame, a second suppo

A rapidly collapsible stand includes a base frame, a pair of pivot members pivotally connected to a first side of the base frame, a first supporting frame connected to the pivot members, a first supporting unit pivotally connected between the base frame and the first supporting frame, a second supporting frame pivotally connected to the first supporting frame and a second supporting unit pivotally connected between the base frame and the second supporting frame. When operating the base frame, the second supporting frame is able to be extended away from the first supporting frame to an extended position by utilizing the linkage of the first supporting unit and the second supporting unit; or the second supporting frame is able to be received toward the first supporting frame to a received position by lifting up a handle portion of the first supporting frame.

대표청구항 ▼

1. A rapidly collapsible stand comprising: a base frame adapted for supporting a machine tool, the base frame having a first lateral portion and a second lateral portion respectively located on opposite sides of the base frame;first and second pivot members pivotally disposed on the first lateral po

1. A rapidly collapsible stand comprising: a base frame adapted for supporting a machine tool, the base frame having a first lateral portion and a second lateral portion respectively located on opposite sides of the base frame;first and second pivot members pivotally disposed on the first lateral portion;a first supporting frame including first and second first legs pivotally engaging with the first and second pivot members, respectively, and a bottom bracket disposed between the two first legs;a first supporting unit pivotally disposed between the second lateral portion of the base frame and the first supporting frame;a second supporting frame including first and second second legs pivotally coupled to the first and second first legs, respectively, each of the second legs defining an end section oppositely positioned relative to the bottom bracket of the first supporting frame; anda second supporting unit for positioning the second supporting frame relative to the first supporting frame and pivotally coupled to said pivot members and said second legs;wherein, in an extended configuration, the first supporting frame and the second supporting frame are positioned outwardly away from each other such that the bottom bracket of the first supporting frame and the end sections of the second supporting frame are generally located at their farthest distance apart, the second supporting unit securely positioning the second supporting frame relative to the first supporting frame;wherein, in a folding configuration, the first supporting frame and the second supporting frame are oriented substantially parallel toward each other, the base frame is arranged substantially upright such that the second lateral portion of the base frame is located adjacent to the first supporting frame. 2. The rapidly collapsible stand according to claim 1 further comprising an operating unit mounted on the first supporting frame, the operating unit includes: a pedal shaft having a pedaling portion and a pivoting portion respectively formed on two opposite ends of the pedal shaft, the pivoting portion pivotally engaging the first supporting frame such that the pedal shaft is pivotable relative to the first supporting frame;a push lever having a first end pivotally engaged with one of the first legs of the first supporting frame and a second end, the push lever being spaced apart from the pedal shaft; anda coupling member pivotally disposed between the pedal shaft and the push lever, the coupling member having first and second pivoting sections formed on two opposite ends thereof, the first and second pivoting sections pivotally engaging the pedal shaft and the push lever, respectively;wherein:in the folding configuration, by applying a pedal force on the pedaling portion, the coupling member is driven by the pedal shaft to drive the push lever such that the second end of the push lever urges the second lateral portion of the base frame to drive the second lateral portion away from the first supporting frame. 3. The rapidly collapsible stand according to claim 2, wherein the operating unit further includes: a spring member disposed between the push lever and the drive shaft, the spring member defining first and second ends abutting against the pedaling portion of the driving shaft and the first end of the push lever, respectively, the spring member providing a resilient force arranged to constantly bias the pedaling portion and the first end to orient toward each other. 4. The rapidly collapsible stand according to claim 1, wherein the second supporting frame has at least one wheel pivotally mounted on the end sections of the two second legs. 5. The rapidly collapsible stand according to claim 1, wherein each of the first and second first legs has a bending portion formed thereon and located along the two first legs, the bottom bracket being adapted for corresponding to a ground surface in the extended configuration and the two first legs are perpendicularly arranged relative to the bottom bracket. 6. The rapidly collapsible stand according to claim 5 further comprising two pin members respectively mounted on the bending portions of the two first legs. 7. The rapidly collapsible stand according to claim 1, wherein the first supporting frame includes two pairs of pivoting plates mounted on the two first legs respectively and located at an intermediate portion on the two first legs, each pivoting plate having a substantially inclined positioning portion formed thereon, each of the first and second second legs having two auxiliary panels disposed thereon and located adjacent to the pivoting plates, each auxiliary panel having a substantially planar-shape retaining portion formed thereon and corresponding to the pivoting plate; wherein:in the extended configuration, the retaining portions respectively mesh with the positioning portions;in the folding configuration, the retaining portions are disengaged from the positioning portions. 8. The rapidly collapsible stand according to claim 1 further comprising: a securing unit mounted on the first lateral portion of the base frame, the securing unit including a tubular member mounted on the first lateral portion, an elastic member disposed in the tubular member, and a retaining shaft passing through the tubular member and the elastic member and having an abutting end formed on a first end thereof, the abutting end selectively protruding from the tubular member for corresponding to one of the pivot members;an actuating member mounted on a second end of the retaining shaft and protruding from the tubular member;wherein, when the first and second supporting frames are positioned outwardly away from each other, the abutting end of the retaining shaft abuts against a bottom of the corresponding pivot member for preventing mis-operation. 9. The rapidly collapsible stand according to claim 1, wherein the first supporting frame has a handle mounted between the two first legs and oppositely located relative to the bottom bracket. 10. The rapidly collapsible stand according to claim 1, wherein each of the two first legs has a locking unit mounted thereon for securely fixing the handle between the two first legs. 11. A rapidly collapsible stand comprising: a base frame adapted for supporting a machine tool, the base frame having at least a first lateral portion on a side of the base frame;at least one pivot member pivotally disposed on the first lateral portion;a first supporting frame including at least one first leg pivotally engaging with the pivot member and a bottom bracket disposed along the at least one first leg;a first supporting unit pivotally disposed between a lateral portion of the base frame and the first supporting frame;a second supporting frame including at least one second leg pivotally coupled with the at least one first leg, each of the at least one second legs defining an end section oppositely positioned relative to the bottom bracket of the first supporting frame; anda second supporting unit for positioning the second supporting frame relative to the first supporting frame and pivotally coupled to the pivot member and the at least one second leg of the second supporting frame. 12. The rapidly collapsible stand according to claim 11, wherein in an extended configuration where the first supporting frame and the second supporting frame are positioned outwardly away from each other such that the bottom bracket of the first supporting frame and the end section of the second supporting frame are located at their farthest distance apart, lifting the first supporting frame can move the second supporting frame toward the first supporting frame such that the collapsible stand can be collapsible. 13. The rapidly collapsible stand according to claim 12, wherein each of the at least one first leg has a locking unit mounted thereon for securely fixing the handle relative to the at least one first leg. 14. A rapidly collapsible stand comprising: a base frame adapted for supporting a machine tool, the base frame having at least one lateral portion on a side of the base frame;at least one pivot member pivotally disposed on the at least one lateral portion;a first supporting frame including at least one first leg pivotally engaging with the pivot member and a bottom bracket disposed along the at least one first leg;a first supporting unit pivotally disposed between the at least one lateral portion of the base frame and the first supporting frame, and said first supporting unit includes a handle located opposite to the bottom bracket;a second supporting frame including at least one second leg pivotally coupled with the at least one first leg, each of the at least one second legs defining an end section oppositely positioned relative to the bottom bracket of the first supporting frame; anda second supporting unit for positioning the second supporting frame relative to the first supporting frame and pivotally coupled to the pivot member and the at least one second leg of the second supporting frame;an operating unit mounted on the first supporting frame and arranged to urge the at least one lateral portion of the base frame to drive the at least one lateral portion away from the first supporting frame when the rapidly collapsible stand is converted from a folding configuration to an extended configuration. 15. The rapidly collapsible stand according to claim 14, wherein the handle is selectively secured on the at least one first leg to reduce packaging size. 16. The rapidly collapsible stand according to claim 14, wherein in a folding configuration, applying downward force on the handle moves the first supporting frame and second supporting frame outwardly away from each other until the bottom bracket and end section of the second supporting frame are located at their farthest distance apart. 17. The rapidly collapsible stand according to claim 14, wherein the operating unit includes a pedal shaft having a pedaling portion and a pivoting portion respectively formed on two opposite ends of the pedal shaft. 18. The rapidly collapsible stand according to claim 17, wherein the pivoting portion pivotally engages the first supporting frame such that the pedal shaft is pivotable relative to the first supporting frame. 19. The rapidly collapsible stand according to claim 17, wherein the operating unit includes a push lever having a first end pivotally engaged with the at least one first leg of the first supporting frame and a second end, the push lever being spaced apart from the pedal shaft. 20. The rapidly collapsible stand according to claim 19, wherein the operating unit further includes a coupling member pivotally disposed between the pedal shaft and the push lever, the coupling member having first and second pivoting sections formed on two opposite ends thereof, the first and second pivoting sections pivotally engaging the pedal shaft and the push lever, respectively.