초록 ▼

A seat rotating device for a baby stroller includes a rotation unit connected to an underside of the seat and two insertions on two sides of an underside of the rotation unit are inserted into a positioning unit. The rotation unit has a disk and the seat is connected to the disk. The disk has a plur

A seat rotating device for a baby stroller includes a rotation unit connected to an underside of the seat and two insertions on two sides of an underside of the rotation unit are inserted into a positioning unit. The rotation unit has a disk and the seat is connected to the disk. The disk has a plurality of positioning holes defined in a periphery thereof. The disk is pivotably connected to a base by a shaft extending through a center of the disk and the base. The base has two wings and the two insertions are inserted into the wings. Each wing has a biasing member inserted therein which his connected with a cable. The biasing member is inserted into one of the positioning holes to position the disk and the seat at an angle.

대표청구항 ▼

What is claimed is: 1. A baby stroller comprising: two horizontal links, a handle, a pair of front wheel links, two extension links connected to the front wheel links, a pair of sub-links pivotably connected to the handle by two connection links, two front wheels connected to the two extension link

What is claimed is: 1. A baby stroller comprising: two horizontal links, a handle, a pair of front wheel links, two extension links connected to the front wheel links, a pair of sub-links pivotably connected to the handle by two connection links, two front wheels connected to the two extension links, a pair of rear wheel links, two rear wheels connected to the rear wheel links, the two horizontal links pivotably connected between the rear links and the sub-links, the extension links crossly connected to the rear wheel links, a first cable connected to the front wheel links, a seat composed of a plurality of rods, and a rotation unit connected to an underside of the seat and two insertions connected on two sides of an underside of the rotation unit, the two insertions inserted into a positioning unit, the rotation unit having a disk and positioning rods of the seat connected to the disk, a plurality of positioning holes defined in a periphery of the disk, a shaft extending through a center of the disk and a base, the base having two wings and the two insertions pivotably connected to the wings, each wing having a biasing member inserted therein which is connected with a second cable, the biasing member inserted into one of the positioning holes to position the disk and the seat at an angle. 2. The baby stroller as claimed in claim 1, wherein the disk has a plurality of passages defined in a top thereof and the positioning rods of the seat extend through the passages. 3. The baby stroller as claimed in claim 1, wherein an angle of 90 degrees is defined between two any adjacent positioning holes. 4. The baby stroller as claimed in claim 1, each of the insertions has two lugs and the wing of the base are pivotably connected between the two lugs by a pin. 5. The baby stroller as claimed in claim 1, wherein each of the insertions has a protrusion extending from an underside thereof and the protrusion is inserted into the positioning unit and positioned by a positioning pin, a side recess is defined in a side of each insertion so as to receive a ring member and the second cable, the second cable has one end connected to the biasing member and the other end of the second cable is tied to a hole of the ring member, the positioning unit has a top hole and a side hole which communicates with the top hole, the protrusion of the insertion is inserted into the top hole and the side hole receives a first hook and the first cable, the first hook hooks the hole of the ring member, a push board is inserted into the positioning unit and a button is connected an end of the push board, the other end of the push board connected with a first spring, the push board includes an inclined surface and a stop surface, a movable piece is engaged with the push board and biased by a second spring, the positioning pin is slid into the push board via the inclined surface and stopped by the stop surface, when the push board is shifted aside, the positioning pin of the protrusion is pushed upward by the movable piece so that the protrusion is disengaged from the top hole. 6. The baby stroller as claimed in claim 1, wherein each wing of the base has a deep recess and the biasing member and a third spring are received therein. 7. The baby stroller as claimed in claim 5, wherein the button has two stubs and the positioning unit has a side hole to receive the stubs. 8. The baby stroller as claimed in claim 5, wherein the positioning unit has a projection against which the movable member contacts. 9. The baby stroller as claimed in claim 1, wherein the positioning unit has a cover connected thereto by first rivets and the positioning unit is connected with the horizontal links by second rivets. 10. The baby stroller as claimed in claim 1, wherein the front wheel links each have a sleeve slidably mounted thereto and a second hook is connected with the sleeve, the sub-links each have a third hook which is removably hooked to the second hook, the sleeve and the second hook are movable along the front wheel link when the second and third hooks are disengaged from each other, the front wheel links are pivoted an angle and pull the first cable.