A stroller mainly includes an upper rack, a front wheel rack, a rear wheel rack, an arched rib, a connection bar, a bracing bar, a guarding handle, a plurality of rotary joints and a plurality of corresponding bars. It also has a folding means consisting of the rear wheel rack, arched rib, second, t
A stroller mainly includes an upper rack, a front wheel rack, a rear wheel rack, an arched rib, a connection bar, a bracing bar, a guarding handle, a plurality of rotary joints and a plurality of corresponding bars. It also has a folding means consisting of the rear wheel rack, arched rib, second, third and fourth rotary joints, a direction switch and wheel retraction means consisting of the front wheel rack, arched rib, second, third and fourth rotary joints, a brake means consisting of brake pulling bar assembly, a plurality of brake means and a cable, and a seat assembly consisting of a cross coupling hub, a guarding handle, a seat rack and a first rotary joint. The second rotary joint is slidable on the rear wheel rack. The fourth rotary joint is slidable on the arched rib.
대표청구항▼
What is claimed is: 1. A stroller comprising at least a folding means, a direction switch and wheel retraction means, a brake means and a seat assembly, the folding means being located above the direction switch and wheel retraction means, the brake means being located below the direction switch an
What is claimed is: 1. A stroller comprising at least a folding means, a direction switch and wheel retraction means, a brake means and a seat assembly, the folding means being located above the direction switch and wheel retraction means, the brake means being located below the direction switch and wheel retraction means, the seat assembly being located between the folding means and the direction switch and wheel retraction means, wherein: the folding means includes a sliding sleeve assembly, an upper rack, a bracing bar, a rear wheel rack, an arched rib, a second rotary joint, a third rotary joint and a fourth rotary joint; the upper rack having two ends coupled respectively with a first rotary joint and the sliding sleeve assembly, the first rotary joint being connected to one end of the bracing bar, the bracing bar having other end connecting to the third rotary joint, a front wheel rack having one side coupled with front wheels and another side connecting to the turnable third rotary joint, the arched rib having one side connecting to the third rotary joint and another side connecting to the fourth rotary joint which is turnable and slidable on a rear wheel rack; the direction switch and wheel retraction means includes the rear wheel rack, the arched rib, the second rotary joint, the third rotary joint and the fourth rotary joint; the rear wheel rack having one side coupling with rear wheels and another side coupling with the second rotary joint which is turnable and slidable on the front wheel rack, the arched rib having one side connecting to the third rotary joint and another side connecting to the fourth rotary joint; the brake means includes a brake pulling bar assembly, a latch member, a sliding seat, a bucking strut, a brake gear, a sync bar, a plurality of fastening elements and a cable; the brake pulling bar assembly being mounted onto the upper rack and connected to the latch member through the cable, the latch member being connected to the sliding seat through the fastening elements, the bucking strut being located in the sliding seat and wedged in the brake gear on the front wheels to accomplish braking effect; and the seat assembly includes a cross coupling hub, a guarding handle, a seat rack and the first rotary joint; the cross coupling hub being inserted in the first rotary joint, and the guarding handle and the seat rack being inserted in the cross coupling hub. 2. The stroller of claim 1, wherein the sliding sleeve assembly includes a sliding sleeve, a sliding latch member, a rotary latch member, a return strut, the cable and elastic elements; the sliding sleeve having a pin to be inserted in the sliding latch member so that the sliding sleeve and the sliding latch member slide at the same time, the sliding latch member having an aperture corresponding to the pin on the sliding sleeve and a first anchor trough to fasten one side of the cable; the rotary latch member having a slot and a first slope surface to allow the return strut to be moved on an inner side of the rotary latch member, and a second anchor trough to fasten to the other side of the cable; the return strut having a plane to hold an inner side of the rotary latch member, the rotary latch member and the return strut being located in the second rotary joint. 3. The stroller of claim 1, wherein the cross coupling hub has seat coupling struts at two sides to hold the seat rack and a round post to wedge in the guarding handle, the round post having a fastening hole and an insertion cavity at the bottom. 4. The stroller of claim 1, wherein the guarding handle has an axle and an insertion member at each of two sides thereof; the insertion member having a turning portion corresponding to the axle and a wedge cavity and an elastic reed at an inner side thereof, the insertion member further having a pushbutton on one side. 5. The stroller of claim 1, wherein the first rotary joint includes a first joint guarding cap, a first joint front cap, a cross latch member, a first joint holding member, a gear, a first joint rear cap, a pulling bar and a plurality of elastic elements; the first joint guarding cap having a plurality of latch hooks to latch the first joint front cap and a plurality of thrust struts to push the cross latch member; the first joint front cap having an anchor trough at one side to anchor the cross latch member, and a latch trough at another side corresponding to the latch hooks; the first joint holding member having an anchor strut at one side to anchor the cross latch member and a teeth trough at another side to anchor the gear; the gear having a conical member, the first joint rear cap having another teeth trough same as that of the first joint holding member and a trough at the top to receive the pulling bar; the pulling bar having a conical surface at one side corresponding to the profile of the conical member of the gear and a first wedge strut at another side to be inserted in an insertion hole of the cross coupling hub and a pulling portion in the middle thereof. 6. The stroller of claim 1, wherein the second rotary joint includes a second joint sliding member, a second joint rotary member, a second joint coupling member and a plurality of elastic elements; the second joint sliding member having a first through hole to be coupled on the front wheel rack so that the second rotary joint is slidable on the front wheel rack; the second joint rotary member having a second wedge strut to receive the connection bar and an anchor strut to insert into the slot of the rotary latch member of the sliding sleeve assembly; the second joint coupling member having a third wedge strut inserted in the rear wheel rack. 7. The stroller of claim 1, wherein the third rotary joint includes a third joint front cap and a third joint holding member; the third joint front cap having a fourth wedge strut to be inserted in one end of the front wheel rack; the third joint holding member having a strut at one side to be inserted by one end of the arched rib and the periphery thereof coupled with the bracing bar. 8. The stroller of claim 1, wherein fourth rotary joint includes a fourth joint sliding member, a fourth joint anchor knob and a plurality of elastic elements; the fourth joint sliding member having a second through hole to be coupled on the rear wheel rack so that the fourth rotary joint is slidable on the rear wheel rack; the fourth joint anchor knob having an insertion strut to be inserted in the rear wheel rack to anchor the fourth rotary joint. 9. The stroller of claim 1, wherein the brake means includes a brake pulling bar assembly, a latch member, a sliding seat, a bucking strut, a brake gear, a plurality of fastening elements and a cable; the latch member having an anchor hole to anchor an anchor hole formed on the sliding seat and a fourth anchor trough to fasten other end of the cable; the sliding seat having a second slope surface and a anchor aperture; the bucking strut having one side wedged in the sliding seat and another side wedged in a trough of the brake gear; the brake gear being located at one side of the front wheels and has the trough and a plurality of stop ditches at one side. 10. The stroller of claim 1, wherein the cable is a flexible wire. 11. The stroller of claim 1, wherein the cable is a rigid wire. 12. The stroller of claim 1, wherein the elastic elements are springs. 13. The stroller of claim 1, wherein the fastening elements are rivets. 14. The stroller of claim 1, wherein the fastening elements are screws. 15. The stroller of claim 9, wherein the brake pulling bar assembly includes a brake pulling bar, a brake pulling bar button and a coupling gear; the brake pulling bar having a third anchor trough to fasten one end of the cable; the brake pulling bar button being wedged in the brake pulling bar mating a coupling gear located on the brake pulling bar. 16. The stroller of claim 9, wherein the sync bar is connected to the latch member and the sliding seat at two sides such that when any side of the bucking strut is inserted into the brake gear the left side and right side thereof are actuated at the same time.
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이 특허에 인용된 특허 (2)
Song Zhenghuan,CNX ; Ye Miao Long,CNX ; Li Jing Ming,CNX, Child carrier.
Homan, Maurits; van der Schoor, Thomas; Baas, Erik; Mountz, Jonathan K, Mounting system and method of installing a child support accessory on a stroller frame.
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