公开(公告)号：WO1994001293A1

公开(公告)日：1994-01-20

申请号：PCT/EP1993001479

申请日：1993-06-11

Applicant: GROSS + FROELICH GMBH & CO. KG ,  ELZENBECK, Manfred ,  HAAR, Klaus ,  DÜRING, Werner ,  SCHÄFER, Hans-Dieter

Inventor： GROSS + FROELICH GMBH & CO. KG

IPC: B60B33/02

CPC classification number: B60B33/0078 ,  B60B33/0042 ,  B60B33/0049 ,  B60B33/0057 ,  B60B33/0068 ,  B60B33/0073 ,  B60B33/0086 ,  B60B33/021 ,  B60B33/025 ,  B60B2200/43

Abstract: The invention relates to a securable steering castor unit with a bearer (14) which can be pivotably secured on a frame about a vertical pivoting axis (10) with at least one castor (18) arranged on an axle passing through the bearer (14) at a distance between the pivoting radius R and the pivoting axis and transversely thereto and with a securing brake having a brake member (38, 40) which can move to a limited degree in a guide (42, 44) in the bearer (14) between a released and locked position by means of an actuating mechanism arranged on the bearer. In order to be able to use the same bearers for different types of locks and for free-wheeling steering castors with the same appearance, the invention proposes that the bearer (14) has at least two guide recesses (42, 44) which can be fitted as desired with a brake member (38, 40) and of which at least one is arranged inside and one outside the pivoting radius R.

公开(公告)号：WO1994001292A1

公开(公告)日：1994-01-20

申请号：PCT/EP1993001477

申请日：1993-06-11

Applicant: GROSS + FROELICH GMBH & CO. KG ,  ELZENBECK, Manfred ,  HAAR, Klaus ,  DÜRING, Werner ,  SCHÄFER, Hans-Dieter

Inventor： GROSS + FROELICH GMBH & CO. KG

IPC: B60B33/02

CPC classification number: B60B33/0042 ,  B60B33/0023 ,  B60B33/0049 ,  B60B33/0057 ,  B60B33/0068 ,  B60B33/0073 ,  B60B33/0086 ,  B60B33/021 ,  B60B33/025 ,  B60B2200/242

Abstract: The invention relates to a steering castor unit intended primarily for hospital beds. The steering castor unit has a bearer (10) with two castors (14) fitted on a common axle and a hollow shaft (18) fitted on the bearer to pivot about a vertical axis. In the hollow shaft (18) there is an axially movable control rod (26) by means of which, by adjustment on a cam disc (28), the rotary movement of the castors (14) and the swivelling movement of the hollow shaft (18) may be locked or freed together or the running direction of the castors (14) in relation to the hollow shaft (18) can be blocked in a predetermined straight-ahead direction. In order to ensure a stable bearing arrangement for the hollow shaft (18) with properly designed force transmission and reliable operation in all circumstances, the control rod (26) is a pushrod, while the hollow shaft (18) bears a control ring (56), secured in rotation to the hollow shaft (18) and axially movable to a limited extent against the force of a spring (40) acting towards the cam disc (28). On its side facing the cam disc (28), the control ring has an anti-pivoting pawl (58) which can engage in a recess (60) in the bearer and on its side opposite the pawl (58) it has a peripheral conical control surface (88). On the bearer (10) there is a locking lever (68) actuatable via the control surface (88) of the control ring (56) having a locking member (76, 87) on each of its lever arms, one of which can be engaged with a locking drum (82) integral with the castor and the other with a locking drum (52) integral with the hollow shaft at the same time.

Abstract translation: 本发明涉及一种基本上用于医院病床的导轮。 导向轮包括支撑元件（10）具有两个行驶轮（14）布置在公共轴线上，和一个空心杆安装在所述支承元件（18）上，以便围绕一个 垂直轴。 的控制棒（26）轴向地可移动地安装在所述中空杆（18）和将阻断或释放一起选择性地可动轮的中空杆的旋转运动（14）和枢转运动（18）， 由凸轮盘（28）或阻止的自由移动的车轮相对于在从直线前进预定方向上的空心轴（18）的方向的调整。 为了确保轴承的中空轴（18）与根据在任何情况下的结构和操作可靠，控制杆（26）上的力传动装置的稳定的布置是在支柱的形式; 中空杆（18）承载与所述的控制环（56）一体旋转的中空轴（18）和可轴向移动的，以克服弹簧的力在一定程度上（40）作用在该盘的方向 带凸轮（28）。 控制环具有在其面对所述凸轮盘（28），防转动棘爪（58），其端面卡抵靠支撑元件和一个表面的一个棘爪（60） 圆周锥形控制件88在其与防摆动棘爪58相对的一侧上。 锁定杆（68）能够由所述控制环的控制表面（88）的装置（56）安装在所述支撑元件（10）上，并包括锁定元件（76，84） 在他的每个手臂上。 一个锁定元件的可被带入与锁定鼓轮（82）与可动，而另一个轮成一体，具有锁定鼓轮（52）与中空杆一体的接触。