IP Library Granted Patent US 8,991,853
Granted Patent B2
US 8,991,853 · App. 14/039,511 · Granted Mar 31, 2015

Retractable stroller

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Quick Facts
Patent No.
US 8,991,853
App. No.
14/039,511
Granted
Mar 31, 2015
Kind
B2
Abstract

A retractable stroller comprises a pair of push arms, a pair of second sliding mounts and a pair of foot rest mount. The pair of push arms are slidably and retractably coupling with a pair of front struts. The pair of second sliding mounts are fixedly mounted on the lower ends of the push arms in a way of slidable along the front struts; each sliding mount formed with an opening in a radial direction, and the pair of foot rest mounts are usable for connecting a foot support element therebetween for support an occupant's feet at an appropriate height. The pair of foot rest mounts are fixedly attached to the front struts in a position aligned with the opening so as to permit the second sliding mounts capable of sliding along the front struts and passing over the foot rest mount without obstacle of the foot rest mount.

Claims (13)

1. A retractable stroller, comprising a pair of front struts ( 1 ) for connecting at least two front wheels, a pair of rear struts ( 2 ) for connecting at least two rear wheels, a pair of joints ( 21 ) for articulately connecting the rear struts ( 2 ) to the front struts ( 1 ), a first cross-brace linkage ( 4 ) extending at the lower end of the retractable stroller, and a second cross-brace linkage ( 5 ) extending at the rear end of the retractable stroller; the retractable stroller is characterized in that:

a pair of push arms ( 3 ) slidably sleeved through the pair of joints ( 21 ) and equipped with a pair of first sliding mounts ( 11 ) on an intermediate portion of the push arms ( 3 ) respectively, for slidably and retractably coupling with the pair of front struts ( 1 );

a pair of second sliding mounts ( 31 ) fixedly mounted on the lower ends of the push arms in a way of permitting the front struts ( 1 ) slidable along the sliding mounts ( 31 ); each sliding mount ( 31 ) formed with an opening ( 310 ) in a radial direction thereof; and

a pair of foot rest mount ( 12 ) for connecting a foot support element ( 13 ) therebetween, attached to the front struts ( 1 ) in a position aligned with the opening ( 310 ) so as to permit the second sliding mounts ( 31 ) capable of sliding along the front struts ( 1 ) and passing over the foot rest mount ( 12 ) without obstacle of the foot rest mount ( 12 ).

2. The retractable stroller according to claim 1 , wherein the foot rest mounts ( 12 ) are extending downward from the front struts ( 1 ) respectively.

3. The retractable stroller according to claim 1 , wherein the foot rest mounts ( 12 ) are radially extending from the front struts ( 1 ) respectively.

4. The retractable stroller according to claim 1 , wherein the foot support element ( 13 ) is made of a flexible material.

5. The retractable stroller according to claim 1 , wherein the foot support element ( 13 ) is a foldable and flexible plate capable of stretching by the pair of foot rest mounts ( 12 ).

6. The retractable stroller according to claim 1 , wherein the foot support element ( 13 ) includes a plurality of plates pivotally jointed to one another between the pair of foot rest mounts ( 12 ).

7. The retractable stroller according to claim 1 , wherein the second sliding mounts ( 31 ) are pivoted with the first cross-brace linkage ( 4 ), when the push arms ( 3 ) are sliding downward and forward along the front struts ( 1 ), the second sliding mounts ( 31 ) is driven to associate the rear struts ( 2 ) and the front struts ( 1 ) moving toward each other via the first cross-brace linkage ( 4 ) so as to collapse the retractable stroller in a width direction thereof.

8. The retractable stroller according to claim 1 , further includes a seat support tube ( 6 ) pivoted between the first sliding mounts ( 11 ) and the rear struts ( 2 ), when the push arms ( 3 ) are sliding downward and forward along the front struts ( 1 ), the first sliding mounts ( 11 ) are driven to associate the rear struts ( 2 ) to rotate toward the front struts ( 1 ) so as to collapse the retractable stroller in a longitudinal direction.

9. The retractable stroller according to claim 8 , wherein the seat support tube ( 6 ) and the first cross-brace linkage ( 4 ) are co-axially pivoted to the rear struts ( 2 ).

10. The retractable stroller according to claim 1 , further characterized in that the rear struts ( 2 ) are associated by the second cross-brace linkage ( 5 ), and the front struts ( 1 ) and the rear struts ( 2 ) are associated by the first cross-brace linkage ( 4 ); the second cross-brace linkage ( 5 ) can be locked to keep the retractable stroller in an in-use configuration, and can be unlocked to permit the front struts ( 1 ) and the rear struts ( 2 ) to move and close to each other, so as to convert the retractable stroller into a compact configuration.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 3, 2021
From: ZHONGSHAN ROADMATE JUVENILE PRODUCT CO., LTD.
To: SHANGHAI DOREL JUVENILE CO., LTD.
Reel/Frame 058278/0905 →
CHANGE OF NAME Recorded Dec 3, 2021
From: DOREL JUVENILE (ZHONGSHAN) PRODUCT CO., LTD.
To: ZHONGSHAN ROADMATE JUVENILE PRODUCT CO., LTD.
Reel/Frame 058303/0837 →
CHANGE OF NAME Recorded Dec 2, 2015
From: LERADO (ZHONGSHAN) INDUSTRIAL CO., LTD.
To: DOREL JUVENILE (ZHONGSHAN) PRODUCT CO., LTD.
Reel/Frame 037196/0685 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 4, 2013
From: LI, WEI-YEH; YANG, BO-WEN
To: LERADO (ZHONG SHAN) INDUSTRIAL CO., LTD
Reel/Frame 031349/0569 →