IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0614077
(2006-12-20)
|
등록번호 |
US-7311323
(2007-12-25)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
12 인용 특허 :
7 |
초록
▼
A stroller includes a wheel frame and a handle frame. The handle frame includes a grip member and two swing rods. The swing rods are spaced apart from each other in a left-to-right direction, and are connected pivotally to the wheel frame. The grip member has two extension rod portions that are conn
A stroller includes a wheel frame and a handle frame. The handle frame includes a grip member and two swing rods. The swing rods are spaced apart from each other in a left-to-right direction, and are connected pivotally to the wheel frame. The grip member has two extension rod portions that are connected respectively and pivotally to the swing rods so as to allow the grip member to be folded on the swing rods. Two slide sleeves are sleeved respectively and movably on the extension rod portions. Two rod-retaining seats are disposed respectively on the slide sleeves, and engage respectively and automatically retaining grooves in the swing rods so as to prevent the grip member from pivoting upwardly away from the swing rods when the grip member is folded on the swing rods.
대표청구항
▼
I claim: 1. A stroller comprising: a wheel frame; and a handle frame including two swing rods spaced apart from each other in a left-to-right direction, each of said swing rods having a retaining groove, two first pivot pins each connecting a corresponding one of said swing rods to said wheel frame
I claim: 1. A stroller comprising: a wheel frame; and a handle frame including two swing rods spaced apart from each other in a left-to-right direction, each of said swing rods having a retaining groove, two first pivot pins each connecting a corresponding one of said swing rods to said wheel frame, a grip member having two extension rod portions, two second pivot pins each connecting a corresponding one of said extension rod portions of said grip member to the corresponding one of said swing rods so as to allow said handle frame to be converted into a folded state, in which said grip member is folded on said swing rods, and two rod-retaining seats disposed on said grip member and pivotable to engage respectively and automatically said retaining grooves in said swing rods so as to prevent said grip member from pivoting upwardly away from said swing rods when said grip member is folded on said swing rods. 2. The stroller as claimed in claim 1, wherein said wheel frame includes a mounting seat, said swing rods being pivotable toward and away from said mounting seat, said stroller further comprising at least one retaining mechanism, said retaining mechanism including a handle-retaining seat attached to said mounting seat, and a retainer attached to one of said swing rods and pivotable to engage said handle-retaining seat so as to lock said stroller in a folded state when said swing rods are pivoted toward said mounting seat. 3. The stroller as claimed in claim 2, further comprising a strut mechanism for maintaining said stroller in an unfolded state, said handle frame further including two folding control mechanisms, each of which includes a slide sleeve disposed movably on the corresponding one of said extension rod portions of said grip member, said rod-retaining seats being disposed respectively on said slide sleeves, said slide sleeves being operable to activate said strut mechanism so as to allow for folding of said stroller. 4. The stroller as claimed in claim 3, wherein each of said slide sleeves includes a surrounding wall disposed around the corresponding one of said extension rod portions of said grip member; and said handle frame further includes: two pivot shafts each connecting a corresponding one of said rod-retaining seats to said surrounding wall of a corresponding one of said slide sleeves such that each of said rod-retaining seats is rotatable relative to said surrounding wall of the corresponding one of said slide sleeves between a sleeve-locking position whereat the corresponding one of said slide sleeves is locked on the corresponding one of said extension rod portions of said grip member, and a sleeve-releasing position whereat the corresponding one of said slide sleeves is released from the corresponding one of said extension rod portions of said grip member, and two resilient members each biasing a respective one of said rod-retaining seats toward said sleeve-locking position. 5. The stroller as claimed in claim 4, wherein said surrounding wall of each of said slide sleeves is formed with a retaining hole therethrough; each of said folding control mechanisms further includes a spring member having a retaining portion biased to engage said retaining hole in the corresponding one of said slide sleeves; and each of said rod-retaining seats includes: a sleeve-engaging portion disposed pivotally on a corresponding one of said slide sleeves, a hook portion extending from said sleeve-engaging portion, said hook portion engaging automatically said retaining groove in a corresponding one of said swing rods so as to lock said handle frame in the folded state when said handle frame is folded, and a pushing portion extending from said sleeve-engaging portion and pivotable into said retaining hole in the corresponding one of said slide sleeves so as to remove said retaining portion of a corresponding one of said spring members from said retaining hole in the corresponding one of said slide sleeves, thereby allowing for movement of the corresponding one of said slide sleeves on the corresponding one of said extension rod portions of said grip member. 6. The stroller as claimed in claim 5, wherein said sleeve-engaging portion of each of said rod-retaining seats has a first abutment surface that is in contact with said surrounding wall of the corresponding one of said slide sleeves when the corresponding one of said rod-retaining seats is disposed in said sleeve-locking position and that is removed from said surrounding wall of the corresponding one of said slide sleeves when the corresponding one of said rod-retaining seats is disposed in said sleeve-releasing position, and a second abutment surface that is in contact with said surrounding wall of the corresponding one of said slide sleeves when the corresponding one of said rod-retaining seats is disposed in said sleeve-releasing position and that is removed from said surrounding wall of the corresponding one of said slide sleeves when the corresponding one of said rod-retaining seats is disposed in said sleeve-locking position. 7. The stroller as claimed in claim 1, wherein each of said swing rods further has a pivot end connected to said wheel frame by a corresponding one of said first pivot pins, and a grip-connecting end opposite to said pivot end, said retaining grooves being formed respectively in said pivot ends of said swing rods, said handle frame further including two folding control mechanisms, each of which includes a slide sleeve disposed movably on a corresponding one of said extension rod portions of said grip member, said rod-retaining seats being disposed respectively on said slide sleeves, said slide sleeves being operable so as to allow for folding of said stroller. 8. The stroller as claimed in claim 1, wherein said first pivot pins are adjacent respectively to said retaining grooves in said swing rods.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.