초록 ▼

A lockable steering structure suitable for the front wheels of a baby cart for children including a grooved block slideable upon T shaped rails attached to both a support frame and a wheel mount so that in a locked position the block engages both rails, so locking the wheel mount to the support fram

A lockable steering structure suitable for the front wheels of a baby cart for children including a grooved block slideable upon T shaped rails attached to both a support frame and a wheel mount so that in a locked position the block engages both rails, so locking the wheel mount to the support frame, and in an unlocked position the block engages only one rail. The block is secured in the unlocked position by a stud which is snap engageable with a recess on the block.

대표청구항 ▼

A lockable wheel structure for use on a wheeled baby cart to support the baby cart on the wheels comprising a frame support having an extending portion for attachment to the baby cart and a substantially vertical portion attached to said extending portion, said substantially vertical portion having

A lockable wheel structure for use on a wheeled baby cart to support the baby cart on the wheels comprising a frame support having an extending portion for attachment to the baby cart and a substantially vertical portion attached to said extending portion, said substantially vertical portion having a penetration hole therethrough and a first T shaped rail along an outer surface of said vertical portion associated in direction with said penetration hole, and an engaging means adjacent to an upper terminal end of said first T shaped rail; a rotation shaft fitted into said penetration hole and extending therethrough; a bearing mount located below the frame support and having a hole therein to receive an end portion of said rotation shaft and thus said bearing mount is mounted on said rotation shaft, and a second T shaped rail, similarly structured to said first rail, along an outer surface of said bearing mount and vertically aligned with said first T shaped rail when the cart moves in a forward direction; a wheel support locked to said bearing mount for movement therewith and attached to the wheels of the baby cart; a block having a groove complementary to said T shaped rails for vertical sliding movement of said block along said T shaped rails and having a complementary engaging means to enable engagement of said complementary engaging means with said engaging means of said first T shaped rail whereby said wheel support having said wheels attached thereto rotates freely relative to said bearing mount when said block is positioned with said complementary groove only engaging said first rail and said complementary engaging means is contacting said engaging means of said first T shaped rail, and the wheels attached to said wheel support are locked in their direction of travel when the rails are vertically aligned and said block is slidably positioned with said complementary groove engaging both said first and said second rail simultaneously.