公开(公告)号：US5333481A

公开(公告)日：1994-08-02

申请号：US776068

申请日：1991-10-16

Applicant: Walter Spath

Inventor： Walter Spath

IPC: B21D7/06 ,  B21D9/05 ,  B21D9/07 ,  B21D11/22 ,  B21D7/04

CPC classification number: B21D9/073

Abstract: Described is a spatial uncoiling and stretch-bending process in combination with a mandrel bending station and the corresponding apparatus, in which the section being bent is first clamped at either end and prestressed and the section is then bent, with at least one section roller being pressed against the section in the forming zone and three-dimensionally repositioned. To also permit the bending of closed or partially open sections, the invention provides that the mandrel bending station, with the mandrel or mandrels around which the section is bent, move in agreement with the motion of the section rollers, which are pressed from the outside onto the mandrel bending station.

Abstract translation: 描述的是与心轴弯曲站和相应的装置组合的空间展开和拉伸弯曲过程，其中被弯曲的区段首先在任一端被夹紧并且预应力，然后该区段被弯曲，至少一个分段辊是 压在成型区的部分并三维重新定位。 为了也允许闭合或部分开放的部分的弯曲，本发明提供了具有该部分弯曲的心轴或心轴的心轴弯曲台与从外部按压的分段辊的运动一致地移动 到心轴弯曲站。

公开(公告)号：US4847930A

公开(公告)日：1989-07-18

申请号：US929791

申请日：1986-11-13

Applicant: Walter Spath

Inventor： Walter Spath

IPC: A61G7/053

CPC classification number: A61G7/0533

Abstract: A raising device for attachment to hospital beds consists of an oval tube mounted in a support and which can be rotated and locked in any desired position of rotation, on whose upper free end a handgrip is arranged by which the patient can pull himself up. He can swing himself to the edge of the bed by rotation of the oval tube, and as soon as the oval tube is pre-loaded in an axial direction a clutch engages which is built in to a support arranged on the bed-head. The clutch consists of a clutch member connected as an axial extension of the oval tube which has an axial shoulder formed as a cone which engages in a corresponding conical recess of a radially expandable brake shoe whose outer circumference can be pressed in a free-locking fashion against the inner side of a bearing cup which is a bearing for the clutch. Such a clutch enables the rotational position of the oval tube to be locked in any desired angular position.

Abstract translation: 用于附接到医院病床的提升装置由安装在支撑件中的椭圆形管组成，其可以旋转并锁定在任何期望的旋转位置，其上部自由端设置手柄，患者可以通过该手柄将其自动拉起。 他可以通过椭圆形管的旋转自己摆动到床的边缘，并且一旦椭圆形管在轴向方向上被预先加载，离合器接合，该离合器嵌入到布置在床头上的支撑件上。 离合器由作为椭圆形管的轴向延伸部连接的离合器构件组成，该离合器构件具有形成为锥体的轴向台阶，该轴向台阶接合在可径向扩张的制动蹄的相应的锥形凹部中，其外围可以以自由锁定的方式被按压 抵靠作为离合器的轴承的轴承杯的内侧。 这种离合器使得椭圆形管的旋转位置能够锁定在任何期望的角度位置。

公开(公告)号：US4941338A

公开(公告)日：1990-07-17

申请号：US180865

申请日：1988-03-18

Applicant: Walter Spath

Inventor： Walter Spath

IPC: B21D11/02 ,  B21D7/025 ,  B21D7/04

CPC classification number: B21D7/04

Abstract: In the process for the cold forming of ferrous and nonferrous metal sections, pretensioning is applied to the initially essentially straight metal section, which is clamped at both ends. Next, the tensioned metal section is bent in a rotating bending tool. In order to achieve three-dimensional forming of the metal section, the bending tool effects a controlled movement in all three spatial axes, whereby the metal section is pressed, with a backlash-free guide system, at least in the forming region against the bending tool and guided by positive engagement.

Abstract translation: PCT No.PCT / EP87 / 00284 Sec。 371日期：1988年3月18日 102（e）1988年3月18日PCT申请1987年6月2日PCT公布。 公开号WO87 / 07537 日期为1987年12月17日。在黑色金属和有色金属部件的冷成型方法中，预张紧被施加到最初基本上直的金属部分，其在两端被夹紧。 接下来，张紧的金属部分在旋转的弯曲工具中弯曲。 为了实现金属部分的三维形成，弯曲工具在所有三个空间轴上实现受控的运动，由此金属部分至少在形成区域中抵抗弯曲而被无间隙的导向系统压制 工具和积极参与的指导。

公开(公告)号：US4674165A

公开(公告)日：1987-06-23

申请号：US618049

申请日：1984-06-07

Applicant: Walter Spath

Inventor： Walter Spath

IPC: B60B21/02 ,  B21D53/18 ,  B21D53/26 ,  B21D53/30 ,  B60B3/06 ,  B21H1/02

CPC classification number: B60B3/06 ,  B21D53/26 ,  B21D53/30 ,  Y10T29/49531

Abstract: The inventive method produces round parts consisting of profiled metal sections from a straight, profiled extruded section forming a wheel-like shape having butt ends joined together by welding. Bending the straight section into a round part is accomplished by first adjustably prestressing the straight section and then subjecting the prestressed section to a rolling bending operation. For this purpose, the section to be bent is wound either from one side or from both sides around the outside diameter of coordinated rolling dies the rotating rolling dies being able to additionally perform a translatory motion in the direction of the longitudinal axis of the section. The resulting wheel rim has the rim pan integrally joined to the rim ring.

Abstract translation: 本发明的方法由直线的成型挤压部分形成由成型的金属部件构成的圆形部件，其形成具有通过焊接连接在一起的对接端部的轮状形状。 将直线部分弯曲成圆形部分是通过首先可调节地预应力直线部分，然后对预应力部分进行轧制弯曲操作来实现的。 为此，要弯曲的部分从一侧或两侧围绕协同轧制模的外径卷绕，旋转的轧制模能够在该部分的纵向轴线的方向上另外执行平移运动。 所得的轮辋具有与轮辋环一体地连接的轮辋。

公开(公告)号：US5351517A

公开(公告)日：1994-10-04

申请号：US929165

申请日：1992-08-11

Applicant: Walter Spath

Inventor： Walter Spath

IPC: B21D7/025 ,  B21D7/03 ,  B21D9/03 ,  B21D9/07 ,  B21D11/14 ,  B21D25/02 ,  B21D11/02

CPC classification number: B21D25/02 ,  B21D9/076

Abstract: A method of stretching and bending hollow profiled lengths of material provides for the hollow profiled length to be bent symmetrically from both ends, starting from the ends of the length of material, simultaneously in a Y torsion direction under initial tension. Respective tools for bending the length of material are stationary and the hollow profiled length of material is bent in the torsion direction by means of a movable clamping head about the bending tool. The clamping head is also pivotable in the torsion direction. Alternatively, the hollow profiled length of material can also be bent about a bending template. The hollow profiled length of material is wound onto core tools from its ends and a pressing die acts on the hollow profiled length between the core tools.

Abstract translation: 拉伸和弯曲中空型材长度的方法提供了中空型材长度，从初始张力的Y扭转方向的两端开始，从材料长度的端部开始对称地弯曲。 用于弯曲材料长度的各种工具是固定的，并且空心成型长度的材料通过围绕弯曲工具的可移动夹紧头在扭转方向上弯曲。 夹头也可在扭转方向上枢转。 或者，中空成型长度的材料也可以围绕弯曲模板弯曲。 中空成型长度的材料从其端部卷绕到核心工具上，并且压模作用在核心工具之间的中空型材长度上。