초록 ▼

A seat assembly mechanism for a stroller has a seat frame and a main frame. The seat assembly mechanism includes a positioning device and a seat supporting member. The positioning device is disposed on the seat frame and includes a positioning pin movable between a locking position and a releasing p

A seat assembly mechanism for a stroller has a seat frame and a main frame. The seat assembly mechanism includes a positioning device and a seat supporting member. The positioning device is disposed on the seat frame and includes a positioning pin movable between a locking position and a releasing position. The seat supporting member is disposed on the main frame, and includes a positioning-device recipient corresponding to the positioning device and a positioning groove located at a side of the positioning-device recipient. Furthermore, the positioning device is detachably assembled to the seat supporting member, and the positioning pin inserts into the positioning groove when the positioning device is disposed in the positioning-device recipient of the seat supporting member for assembling the seat frame to the main frame.

대표청구항 ▼

1. A seat assembly mechanism for a stroller having a seat frame and a main frame, the seat assembly mechanism comprising: a positioning device disposed on the seat frame, the positioning device comprising a positioning pin movable between a locking position and a releasing position; anda seat suppor

1. A seat assembly mechanism for a stroller having a seat frame and a main frame, the seat assembly mechanism comprising: a positioning device disposed on the seat frame, the positioning device comprising a positioning pin movable between a locking position and a releasing position; anda seat supporting member disposed on the main frame, the seat supporting member comprising a positioning-device recipient corresponding to the positioning device and a positioning groove located at a side of the positioning-device recipient;wherein the positioning device is detachably assembled to the seat supporting member, the positioning pin inserts into the positioning groove when the positioning device is disposed in the positioning-device recipient of the seat supporting member for assembling the seat frame to the main frame, the positioning device and the seat supporting member are only held together in the locking position by the positioning pin being inserted into the positioning groove, and when the positioning pin completely disengages from the positioning groove, for detaching the positioning device is removable from the positioning-device recipient of the seat supporting member, and the seat frame may be disassembled from the main frame. 2. The seat assembly mechanism of claim 1, wherein the seat supporting member comprises a pivot base and a seat supporting base connected to the pivot base, the positioning groove is disposed on the pivot base, and the positioning-device recipient is disposed on the seat supporting base. 3. The seat assembly mechanism of claim 2, wherein the pivot base has a first connecting surface and a plurality of positioning grooves formed on the first connecting surface, the seat supporting base has a second connecting surface corresponding to the first connecting surface, the first connecting surface is pivotally connected to the second connecting surface so as to allow the seat supporting base to rotate respective to the pivot base, and the positioning pin inserts selectively into one of the plurality of positioning grooves for fixing the position of the seat supporting base relative to the pivot base. 4. The seat assembly mechanism of claim 3, wherein the lower portion of the first connecting surface is formed with a protruding piece, the second connecting surface has a groove and two limiting tabs located at two ends of the groove respectively, the seat supporting member further comprises two springs disposed in the groove, and the protruding piece passes through the groove so that the two springs are disposed between the two limiting tabs and the protruding piece respectively when the first connecting surface couples with the second connecting surface. 5. The seat assembly mechanism of claim 3, wherein the second connecting surface has two limiting tabs, the pivot base further comprises a protruding portion where the plurality of positioning grooves is disposed on, and the protruding portion is abutted against one of the two limiting tabs when the first connecting surface rotates to a predetermined angle relative to the second connecting surface. 6. The seat assembly mechanism of claim 1, wherein the positioning device comprises a button slidably disposed on the seat frame, the button has a first guide slot for allowing the positioning pin to pass through, the first guide slot is formed with a first inclined face, and the positioning pin has a second inclined face corresponding to the first inclined face. 7. The seat assembly mechanism of claim 6, wherein the positioning pin comprises a positioning sleeve and a first positioning rod secured within the positioning sleeve, the positioning sleeve is formed with the second inclined face, and the first positioning rod is protruding from the positioning sleeve and is configured for inserting into the positioning groove. 8. The seat assembly mechanism of claim 7, wherein the fixing sleeve comprises a partition for separating the inner space of the fixing sleeve into a first mounting portion and a second mounting portion, the second mounting portion receives a seat connection portion of the seat frame, and the button is slidably disposed on the first mounting portion. 9. The seat assembly mechanism of claim 6, wherein the positioning device comprises a spring sleeved on the positioning pin and disposed in the seat frame for biasing the positioning pin toward the locking position. 10. The seat assembly mechanism of claim 1, wherein an inclined opening is formed above the positioning groove, and the positioning pin is guided into the positioning groove by the inclined opening when the seat frame is assembled to the main frame. 11. The seat assembly mechanism of claim 1, wherein a plurality of engaging grooves is formed on a side of the seat supporting member, the positioning device comprises a positioning slider slidably disposed on the seat frame, the positioning slider has an engaging part for engaging with one of the plurality of the engaging grooves so as to fix the seat frame relative to the main frame in a corresponding tilt position, and the seat frame comprises an actuating mechanism connected to the positioning slider and driving the positioning slider to disengage from the engaging groove. 12. The seat assembly mechanism of claim 11, wherein the positioning-device recipient has a first contact surface, and the seat frame has a second contact surface for abutting against the first contact surface when the positioning device rotates to a predetermined tilt position relative to the positioning-device recipient. 13. The seat assembly mechanism of claim 11, wherein the actuating mechanism comprises a linkage element and an operating device, the positioning slider is connected to one end of the linkage element, and the operating device is connected to the other end of the linkage element for pulling the linkage element so as to drive the positioning slider to disengage from the engaging groove. 14. The seat assembly mechanism of claim 11, wherein the positioning device comprises: an inner cover connected to the seat frame and having a protruding shaft, the positioning slider being disposed between the inner cover and the seat frame and having a guide slot for the protruding shaft to pass through; anda spring disposed in the guide slot and abutting against the protruding shaft and the positioning slider for biasing the engaging part engaging with one of the plurality of the engaging grooves. 15. A stroller comprising: a seat frame comprising a positioning device, the positioning device comprising a positioning pin movable between a locking position and a releasing position; anda main frame comprising a seat supporting member, the seat supporting member having a positioning-device recipient for removably receiving the positioning device of the seat frame and a positioning groove located at a side of the positioning-device recipient;wherein when the positioning device is disposed in the positioning-device recipient, the positioning pin is engaged with the positioning groove for fixing the seat frame on the main frame, the positioning device and the seat supporting member are only held together in the locking position by the positioning pin being inserted into the positioning groove, and when the positioning pin completely disengages from the positioning groove, for detaching the positioning device is removable from the positioning-device recipient, and the seat frame may be disassembled from the main frame. 16. The stroller of claim 15, wherein the positioning device comprises a button slidably disposed on the seat frame, the button has a first inclined face, the positioning pin has a second inclined face corresponding to the first inclined face, and the first inclined face pushes the second inclined face to drive the positioning pin to move toward the releasing position when the button is pressed. 17. The stroller of claim 16, wherein the seat supporting member comprises a pivot base and a seat supporting base connected to the pivot base, the positioning groove is disposed on the pivot base, and the positioning-device recipient is disposed on the seat supporting base. 18. The stroller of claim 17, wherein the seat supporting base is pivotally connected to the pivot base for allowing the seat frame to rotate relative to the main frame. 19. The stroller of claim 18, wherein the pivot base has a blocker, the button has a blocking section, and the blocking section is blocked by the blocker so that the seat frame can only rotate relative to the main frame in one direction. 20. The stroller of claim 17, wherein the main frame has a front leg, a handle pivotally connected to the front leg by the pivot base, and a rear leg pivotally connected to the handle. 21. The stroller of claim 15, wherein a plurality of engaging grooves is formed on a side of the seat supporting member, the positioning device comprises a positioning slider slidably disposed on the seat frame, and the positioning slider has an engaging part for engaging with one of the plurality of the engaging grooves so as to fix the seat frame relative to the main frame in a corresponding tilt position.