Foldable strollers and related methods

Abstract

Foldable strollers and related methods are disclosed herein. An example frame for use with a stroller includes a first leg having a first wheel coupled thereto, a second leg having a second wheel coupled thereto, a first joint to couple the first leg and the second leg, a handle arm, and a second joint to couple the handle arm and the first leg. The handle arm is to rotate relative to the first leg via the second joint. The rotation of the handle via the second joint is to cause the second leg to rotate relative to the first leg via the first joint to fold the frame.

1 . (canceled) 
     
     
         2 . A frame for use with a stroller, the frame comprising:
 a first leg;   a second leg;   a handle arm;   a first joint to couple the first leg and the handle arm; and   a second joint to couple the first leg and the second leg, the second joint including a housing including:
 a lock; and 
 a detent, the lock to move from a first position relative to the housing to a second position relative to the housing in response to rotation of the handle arm via the first joint to enable the second leg to rotate relative to the first leg to fold the frame, a protrusion in the housing to engage with at least a portion of the detent when the second leg rotates relative to the first leg. 
   
     
     
         3 . The frame of  claim 2 , further including a cable extending from the first joint to the lock, the cable to pull the lock in response to rotation of the handle arm to cause the lock to move from the first position to the second position. 
     
     
         4 . The frame of  claim 2 , wherein the lock includes a spring, the spring to move from an extended position to a compressed position when the lock moves from the first position to the second position. 
     
     
         5 . The frame of  claim 2 , wherein the housing includes a first housing portion rotatably coupled to a second housing portion, the first housing portion to rotate during rotation of the second leg. 
     
     
         6 . The frame of  claim 5 , wherein rotation of the first housing portion is to cause the protrusion to move to enable the protrusion to engage the detent. 
     
     
         7 . The frame of  claim 2 , wherein at least a portion of the lock is to engage a surface in the housing when the frame is in an unfolded position. 
     
     
         8 . The frame of  claim 2 , wherein the first leg is disposed at an angle relative to the first joint and the second joint when the frame is in an unfolded position. 
     
     
         9 . A frame for use with a stroller, the frame comprising:
 a first frame member;   a second frame member;   a third frame member;   a first joint to couple the first frame member and the third frame member; and   a second joint to couple the first frame member and the second frame member, the second joint operatively coupled to the first joint via a cable, the second joint including means for locking the second frame member in an extended position, the cable to cause the locking means to move from a locked position to an unlocked position during rotation of the third frame member to enable the second frame member to move from the extended position to a collapsed position.   
     
     
         10 . The frame of  claim 9 , wherein the locking means includes a spring-loaded pin. 
     
     
         11 . The frame of  claim 9 , wherein at least a portion of the cable is disposed in the first frame member. 
     
     
         12 . The frame of  claim 9 , further including a detent carried by the second joint, a protrusion of the second joint to engage at least a portion of the detent when the locking means is in the unlocked position. 
     
     
         13 . The frame of  claim 9 , wherein the locking means is slidable in the second joint to move between the locked position and the unlocked position. 
     
     
         14 . The frame of  claim 9 , wherein a portion of the second joint is to rotate during movement of the second frame member. 
     
     
         15 . A stroller comprising:
 a first leg having a first wheel coupled thereto;   a second leg having a second wheel coupled thereto;   a handle arm;   a first joint to couple the first leg and the handle arm;   a second joint to couple the first leg and the second leg, the second joint including:
 a first housing portion; 
 a second housing portion, the second housing portion rotatable relative to the first housing portion; 
 a lock; and 
 a detent, the handle arm to rotate via the first joint to release the lock to enable the second housing portion to rotate relative to the first housing portion to cause the second leg to move from an extended position to a collapsed position, a protrusion of the second joint to contact at least a portion of the detent when the second housing portion rotates. 
   
     
     
         16 . The stroller of  claim 15 , wherein rotation of the second housing portion is to cause the protrusion to move relative to the detent. 
     
     
         17 . The stroller of  claim 16 , wherein the protrusion is to move in a first direction when the second leg moves from the extended position to the collapsed position and a second direction when the second leg moves from the collapsed position to the extended position, the second direction opposite the first direction. 
     
     
         18 . The stroller of  claim 15 , further including a cable operatively coupling the first joint and the second joint. 
     
     
         19 . The stroller of  claim 15 , wherein at least a portion of the second leg is to move toward the first leg when the second leg moves from the extended position to the collapsed position. 
     
     
         20 . The stroller of  claim 15 , wherein the lock includes a spring. 
     
     
         21 . The stroller of  claim 15 , further including a mount bar disposed proximate to the second joint.