公开(公告)号：US5951591A

公开(公告)日：1999-09-14

申请号：US18412

申请日：1998-02-04

申请人： Bruce Roberts

发明人： Bruce Roberts

IPC分类号： A61F5/02 ,  A61F5/00

CPC分类号： A61F5/02

摘要： A mobile back mounted supporting device for relieving pressure off of the back of a person who has to endure frequent bending. This device permits a wearer to bend over and remain parallel to the ground for extended periods of time without discomfort. It allows maximum movement for the operator since the operating parts do not get in the way. This device consists of a frame to which a chest harness, belt clip, and leg extensions are attached. The chest harness is worn by the worker and is supported by a system of elastic cord and pulleys. The harness pulls up on the upper body as the worker bends forward and thus provides support. The farther the wearer bends forward, the more tension is placed on the cords, and thus more support is given to the back.

摘要翻译： 一种移动式后支撑装置，用于缓解不得不经受弯曲的人的背部的压力。 该装置允许佩戴者弯曲并保持平行于地面延长的时间段而不会不适。 它允许操作员的最大运动，因为操作部件不妨碍。 该装置由一个框架组成，胸部线束，皮带夹和腿部延伸部连接到该框架上。 胸前线束由工人佩戴，并由弹性绳和滑轮系统支撑。 当工作人员向前弯曲时，线束拉到上身，从而提供支撑。 穿着者向前弯曲的越远，绳索上的张力就越大，因此对背部的支撑越多。

公开(公告)号：US5862655A

公开(公告)日：1999-01-26

申请号：US726060

申请日：1996-10-03

申请人： Rolando Altamirano ,  James M. D'Aleo ,  Charles R. Elder ,  Mathieu J. Grumberg ,  Bruce Roberts

发明人： Rolando Altamirano ,  James M. D'Aleo ,  Charles R. Elder ,  Mathieu J. Grumberg ,  Bruce Roberts

IPC分类号： A01D34/00 ,  A01D34/416 ,  A01D75/10

CPC分类号： A01D34/001 ,  A01D34/416 ,  A01D2101/00

摘要： An adjustable mowing and trimming apparatus is presented which employs a unique wheel adjust mechanism and trimming assembly. The apparatus includes a frame to which at least two wheels are rotatably mounted at opposite sides of an adjustable linkage which is loosely coupled to the frame through a moveable pivot assembly. A mechanism is provided for manually adjusting the moveable pivot assembly to actuate the adjustable linkage and thereby reorient the wheels on either side of the frame. The trimming assembly is mounted at a front portion of the frame and includes a spindle head fixedly mounted to a spindle depending from the frame so as to rotate with the spindle. The spindle head substantially covers the spindle and is sized such that a distal end thereof rests proximate to ground when the trimming apparatus is operational. A trimmer head is adjustably clamped about the spindle head so as to rotate therewith. The trimmer head has a plane of cutting substantially perpendicular to the axis of rotation of the spindle and the cutting plane is infinitely adjustable within a range defined by a length of the spindle head.

摘要翻译： 提出了一种可调节的修剪和修剪装置，其采用独特的车轮调节机构和修剪组件。 该装置包括框架，至少两个轮可旋转地安装在可调节联动装置的相对侧，该可调节联动装置通过可移动的枢轴组件松动地联接到框架。 提供了用于手动调节可移动枢轴组件以致动可调节联动装置并由此重新定向框架两侧的车轮的机构。 修整组件安装在框架的前部，并且包括主轴头，该主轴头固定地安装到从框架垂直的主轴上，以便与主轴一起旋转。 主轴头基本上覆盖主轴，并且其尺寸使得当修剪装置可操作时，其远端靠近地面。 修剪头可绕主轴头可调地夹紧以便与其一起旋转。 修剪头具有基本上垂直于心轴旋转轴线的切割平面，并且切割平面在由主轴头的长度限定的范围内是无级可调的。