公开(公告)号：US09168938B2

公开(公告)日：2015-10-27

申请号：US13888453

申请日：2013-05-07

Applicant: Chia-Ling Wang

Inventor： Chia-Ling Wang

IPC: B62B3/02 ,  A63B47/00 ,  B62B3/10

CPC classification number: B62B3/025 ,  A63B47/00 ,  A63B71/0036 ,  A63B2071/025 ,  A63B2210/50 ,  B62B3/10 ,  B62B2202/40 ,  B62B2205/003 ,  B62B2205/06

Abstract: A folding ball trolley having a minimized volume has a frame, a bag and multiple resilient elements. The frame has four stand rods, four top seats, four sliding seats, four wheels, four connecting rod assemblies and four mounting rods. The bag connects to the mounting rods, and the mounting rods pivotally connect to the stand rods. Accordingly, the mounting rods can be rotated relative to the stand rods, such that the mounting rods do not protrude upward to occupy too much space when the ball trolley is folded. Besides, the frame is braced by the resilient elements so a user does not have to stretch his hands between the rods when folding the ball trolley, thereby preventing the hands from being clamped.

Abstract translation: 具有最小体积的折叠滚珠推车具有框架，袋和多个弹性元件。 框架有四个支架杆，四个顶座，四个滑动座，四个轮，四个连杆组件和四个安装杆。 该袋连接到安装杆，并且安装杆枢转地连接到支架杆。 因此，安装杆可以相对于支杆旋转，使得当球推车折叠时，安装杆不向上突出以占据太多的空间。 此外，框架由弹性元件支撑，使得用户在折叠球推车时不必在杆之间伸展双手，从而防止手被夹紧。

公开(公告)号：US08967658B1

公开(公告)日：2015-03-03

申请号：US14261552

申请日：2014-04-25

Applicant: Chia-Ling Wang

Inventor： Chia-Ling Wang

IPC: B62B1/00 ,  B62B3/02

CPC classification number: B62B3/025 ,  B62B2202/40 ,  B62B2205/06

Abstract: A folding ball trolley has a frame and a bag. The frame has two main rod assemblies and two connecting rod assemblies. When the folding ball trolley is expanded, the main rods and the connecting rods lean outward under gravity until the main rods brace the bag. The bag holds the main rods at a specific angle, and the main rods hold the connecting rods at a specific angle. The main rod assemblies and the connecting rod assemblies are connected into a rectangle, such that the frame is expanded horizontally when the rods are leant outward. Thus, the folding ball trolley can achieve auto expansion without any resilient element, and therefore a user does not have to resist the resilient force when folding. Besides, the amount of the rods is reduced to eight (four main rods and four connecting rods), which reduces the manufacturing cost and facilitates ease of assembly.

Abstract translation: 折叠手推车有一个框架和一个袋子。 框架具有两个主杆组件和两个连杆组件。 当折叠球手推车膨胀时，主杆和连杆在重力作用下向外倾斜，直到主杆支撑袋子。 主把杆以特定的角度保持主杆，主杆以特定的角度固定连杆。 主杆组件和连杆组件连接成矩形，使得当杆向外倾斜时框架水平扩展。 因此，折叠球推车可以实现自动膨胀而没有任何弹性元件，因此使用者不必在折叠时抵抗弹性力。 此外，杆的数量减少到八个（四个主杆和四个连杆），这降低了制造成本并且便于组装。

公开(公告)号：US20140291969A1

公开(公告)日：2014-10-02

申请号：US13888453

申请日：2013-05-07

Applicant: Chia-Ling Wang

Inventor： Chia-Ling Wang

IPC: B62B3/02

CPC classification number: B62B3/025 ,  A63B47/00 ,  A63B71/0036 ,  A63B2071/025 ,  A63B2210/50 ,  B62B3/10 ,  B62B2202/40 ,  B62B2205/003 ,  B62B2205/06

Abstract: A folding ball trolley having minimized volume has a frame, a bag and multiple resilient elements. The frame has four stand rods, four top seats, four sliding seats, four wheels, four connecting rod assemblies and four mounting rods. The bag connects to the mounting rods and the mounting rods pivotally connect to the stand rods. Accordingly, the mounting rods can be rotated relative to the stand rods such that the mounting rods do not protrude upward to occupy too much space when the ball trolley is folded. Besides, the frame is braced by the resilient elements so a user does not have to stretch his hands between the rods when folding the ball trolley, thereby preventing the hands from being clamped.

Abstract translation: 具有最小体积的折叠滚珠推车具有框架，袋子和多个弹性元件。 框架有四个支架杆，四个顶座，四个滑动座，四个轮，四个连杆组件和四个安装杆。 该袋连接到安装杆，并且安装杆枢转地连接到支架杆。 因此，安装杆可以相对于支柱杆旋转，使得当球推车折叠时，安装杆不向上突出以占据太多的空间。 此外，框架由弹性元件支撑，使得用户在折叠球推车时不必在杆之间伸展双手，从而防止手被夹紧。