公开(公告)号：US20150203136A1

公开(公告)日：2015-07-23

申请号：US14159388

申请日：2014-01-20

Applicant: Wen-Fa Wang ,  Jian-Wen Deng

Inventor： Wen-Fa Wang ,  Jian-Wen Deng

IPC: B62B1/04 ,  B62B1/02

CPC classification number: B62B1/045 ,  B62B1/02 ,  B62B1/12 ,  B62B2205/33

Abstract: A foldable luggage carrier includes a frame, a supporting tray and a pair of wheeled carriages. The tray has a pair of pivot brackets pivotally connected to two leg portions of the frame such that the tray is pivotable between a forwardly extended position and a fold-up position. Each of the pivot brackets includes a pair of opposed plates and a cam portion at a corner. Each of the wheeled carriages includes a wheel bracket having a sleeve bearing rotatably supported on the leg portions of the frame to permit the wheeled carriages to pivot between rearwardly extended positions and folded-in positions. The sleeve bearing has a guiding slope section at a bottom to interact with each cam portion of the pivot bracket in a manner such that the wheeled carriages automatically pivot to the folded-in positions and the rearwardly extended positions when the tray is moved between the fold-up position and the forwardly extended position.

Abstract translation: 可折叠行李架包括框架，支撑托盘和一对轮式托架。 托盘具有一对枢转支架，枢转支架枢转地连接到框架的两个腿部部分，使得托盘可在向前伸展位置和折回位置之间枢转。 每个枢轴支架包括一对相对的板和在拐角处的凸轮部分。 每个轮式滑架包括具有可旋转地支撑在框架的腿部上的套筒轴承的轮架，以允许轮式滑架在向后延伸位置和折叠位置之间枢转。 套筒轴承具有在底部的引导斜面部分，以与枢轴支架的每个凸轮部分相互作用，使得当托盘在折叠之间移动时，轮式托架自动地枢转到折叠位置和向后延伸的位置 - 位置和向前延伸的位置。

公开(公告)号：US20140183832A1

公开(公告)日：2014-07-03

申请号：US14140561

申请日：2013-12-26

Applicant: Wen-Fa Wang ,  Jian-Wen Deng ,  Jia-Chao Chen

Inventor： Wen-Fa Wang ,  Jian-Wen Deng ,  Jia-Chao Chen

IPC: B62B3/02

CPC classification number: B62B3/022 ,  B62B5/067 ,  B62B2205/12 ,  B62B2205/18

Abstract: A foldable platform truck includes a platform, two wheel-connecting bars rotatably attached to the platform, a handle assembly, a handle release and locking mechanism for controlling the handle assembly, a pair of first gear members and a pair of second gear members. The handle release and locking mechanism has an actuator to be operated to allow the handle assembly to pivot between an upright position and a horizontal position. When the handle assembly is in the horizontal position, the wheels are folded up underneath the platform and lie horizontally with respect thereto. And, when the handle assembly is pulled away from the platform to the upright position, the first gear members engage and turn the second gear members, resulting in the wheel-connecting bars rotating to fold out the wheels from underneath the platform toward an eventual perpendicular position with respect to the underside of the platform.

Abstract translation: 可折叠平台车包括平台，可旋转地连接到平台的两个轮连接杆，手柄组件，用于控制手柄组件的手柄释放和锁定机构，一对第一齿轮构件和一对第二齿轮构件。 手柄释放和锁定机构具有致动器以被操作以允许手柄组件在直立位置和水平位置之间枢转。 当手柄组件处于水平位置时，车轮折叠在平台的下方并相对于其水平放置。 而且，当手柄组件被从平台拉出到直立位置时，第一齿轮构件接合并转动第二齿轮构件，导致车轮连接杆旋转以从平台下方向最终垂直方向折叠车轮 相对于平台下侧的位置。

公开(公告)号：US08979098B2

公开(公告)日：2015-03-17

申请号：US14140561

申请日：2013-12-26

Applicant: Wen-Fa Wang ,  Jian-Wen Deng ,  Jia-Chao Chen

Inventor： Wen-Fa Wang ,  Jian-Wen Deng ,  Jia-Chao Chen

IPC: B62B3/02

CPC classification number: B62B3/022 ,  B62B5/067 ,  B62B2205/12 ,  B62B2205/18

Abstract: A foldable platform truck includes a platform, two wheel-connecting bars rotatably attached to the platform, a handle assembly, a handle release and locking mechanism for controlling the handle assembly, a pair of first gear members and a pair of second gear members. The handle release and locking mechanism has an actuator to be operated to allow the handle assembly to pivot between an upright position and a horizontal position. When the handle assembly is in the horizontal position, the wheels are folded up underneath the platform and lie horizontally with respect thereto. And, when the handle assembly is pulled away from the platform to the upright position, the first gear members engage and turn the second gear members, resulting in the wheel-connecting bars rotating to fold out the wheels from underneath the platform toward an eventual perpendicular position with respect to the underside of the platform.

Abstract translation: 可折叠平台车包括平台，可旋转地连接到平台的两个轮连接杆，手柄组件，用于控制手柄组件的手柄释放和锁定机构，一对第一齿轮构件和一对第二齿轮构件。 手柄释放和锁定机构具有致动器以被操作以允许手柄组件在直立位置和水平位置之间枢转。 当手柄组件处于水平位置时，车轮折叠在平台的下方并相对于其水平放置。 而且，当手柄组件被从平台拉出到直立位置时，第一齿轮构件接合并转动第二齿轮构件，导致车轮连接杆旋转以从平台下方向最终垂直方向折叠车轮 相对于平台下侧的位置。