公开(公告)号：US4007679A

公开(公告)日：1977-02-15

申请号：US669209

申请日：1976-03-22

申请人： Bobbie Lee Edwards

发明人： Bobbie Lee Edwards

IPC分类号： B29C33/20 ,  B29C33/26 ,  B29C44/42 ,  B29C67/24 ,  B30B1/32

CPC分类号： B29C33/26 ,  B29C44/428 ,  B29C2037/94 ,  B29C33/20 ,  B29C67/246 ,  B29K2075/00

摘要： A press mechanism that is powered by hydraulic, electrical and/or pneumatic means is provided with an improved ratchet and pawl machine which acts as a fail-safe device should any of the power means fail to lock the press parts in place. The fail-safe device includes a ratchet in the form of a circular or arcuate segment mounted with its circular center substantially coaxial with one of the turning parts of the mechanism or press, a pawl having a single tooth and a circular arcuate peripheral part that acts as a journal bearing and which in turn is supported by a pawl bearing which in turn is secured to a stationary part of the mechanism and has an arcuate journal which receives and supports the pawl therein. Tremendous load carrying capacity is thus achieved because of the large bearing area provided by the pawl bearing and the positioning of the respective ratchet and pawl teeth to employ a surface rather than point contact. An advantage of this structure is that the ratchet does not have to be backed off in order to move or continue moving one part of the mechanism.

摘要翻译： 由液压，电气和/或气动装置驱动的压力机构设置有改进的棘轮和棘爪机器，如果任何动力装置不能将压力部件锁定在适当位置，则其作为故障保护装置。 故障保护装置包括呈圆形或弧形段形式的棘轮，其安装有其圆形中心与机构或压机的一个转动部分基本上同轴，具有单个齿的棘爪和圆弧形周边部分，其作用 作为轴颈轴承，其又由棘爪轴承支撑，棘爪轴承又固定到机构的固定部分，并且具有在其中接收并支撑棘爪的弓形轴颈。 因此，由于棘爪轴承提供的较大的轴承面积和相应的棘轮和棘爪齿的定位采用表面而不是点接触，因此实现了巨大的承载能力。 这种结构的优点在于，为了移动或继续移动机构的一部分，棘轮不必被退回。

公开(公告)号：US3981671A

公开(公告)日：1976-09-21

申请号：US615351

申请日：1975-09-22

申请人： Bobbie Lee Edwards

发明人： Bobbie Lee Edwards

IPC分类号： B29C33/00 ,  B29B7/00 ,  B29B13/00 ,  B29C33/20 ,  B29C33/26 ,  B29C33/28 ,  B29C37/00 ,  B29C39/00 ,  B29C39/04 ,  B29C39/26 ,  B29C41/00 ,  B29C44/42 ,  B29C45/00 ,  B29C45/34 ,  B29C45/40 ,  B29C45/63 ,  B29C45/64 ,  B29C45/68 ,  B29C67/24 ,  B29C5/00 ,  B29D27/04

CPC分类号： B29C44/428 ,  B29C33/26 ,  B29C67/246 ,  B29C33/20 ,  B29K2075/00 ,  Y10S264/83

摘要： A clamp for holding together the portions of a mold used in molding solid objects from a reacting liquid such as polyurethane has a C-shaped frame which is pivotally mounted on a pedestal to swing through an arc. The C-shaped frame of the clamp consists of an integral structure having an upper jaw connected by a column to a lower jaw. The frame supports a bed, crown and platen. The bed and crown are each a plate-like member that is mounted to pivot relative to one of the jaws. The platen is mounted preferably on the bed or lower one of such members. The mold portions are mounted on the crown and platen with the parts being arranged to move so that the mold portion engage and disengage. The invention also includes a method of molding wherein the mold portions are engaged and disengaged by a process that involves pivoting at least one and preferably both of the portions relative to the C-shaped frame.

摘要翻译： 用于将来自诸如聚氨酯的反应液成型固体物体的模具的部分保持在一起的夹具具有C形框架，其被枢转地安装在基座上以摆动通过弧形。 夹具的C形框架由整体结构组成，其具有通过柱与下颚连接的上钳口。 框架支撑床，表冠和台板。 床和冠各自是板状构件，其被安装成相对于一个夹爪枢转。 压板优选地安装在床上或下部的这种构件中。 模具部分安装在冠部和台板上，部件被布置成移动，使得模具部分接合和脱离。 本发明还包括一种模制方法，其中模具部分通过涉及相对于C形框架枢转至少一个且优选两个部分的过程来接合和脱离。