Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With product ejector
Reexamination Certificate
1998-05-11
2001-01-30
Mackey, James P. (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With product ejector
C164S342000, C425S19200R, C425S451900, C425S595000
Reexamination Certificate
active
06179606
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an arrangement for a latch lock for a tool used in the injection moulding of plastics or the die-casting of metals having a moving element such as a mould plate or similar intended, after having been displaced for a certain distance, to be locked in the attained position prior to any subsequent actuation.
An arrangement for an injection moulding tool is previously disclosed in, for example, Swedish Patent Application 9002829-1. The constituent parts in this case are designed and assembled in a particular manner. It has been found that manufacture and assembly should be capable of taking place in a more rational and functional manner, in conjunction with which certain advantages relating to the function are demanded by those who use the moulding tools.
SUMMARY OF THE INVENTION
The principal object of the present invention is thus, in the first place, to attempt by simple means to satisfy the aforementioned wishes in an effective and efficiently functioning manner without the need for complicated or cost-increasing measures.
Said object is achieved by means of a latch lock in accordance with the present invention, which is characterized essentially in that an axially slotted sleeve is so arranged as to accommodate internally a connecting piece exhibiting radially projecting drawing wings that are attached to a tool plate and are movably guided along the sleeve by the slots in the sleeve, and in that an end closure that is attached to a tool plate is detachably attached to the guiding slotted sleeve.
REFERENCES:
patent: 3986805 (1976-10-01), Haines
patent: 4561626 (1985-12-01), Black
patent: 4671764 (1987-06-01), Hehl
patent: 5494435 (1996-02-01), Vandenberg
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