Metal working – Plural diverse manufacturing apparatus including means for... – Including composite tool
Patent
1991-11-04
1994-05-03
Hall, Carl E.
Metal working
Plural diverse manufacturing apparatus including means for...
Including composite tool
29751, H01R 4304
Patent
active
053075536
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention concerns a crimping tool.
The solderless connection of electrical components (so-called "crimp connections") is gaining increasing importance, especially for "on site" assembly. Thus, for production reasons, for example, it is substantially more convenient to furnish cable ends provided for a clamping connection by crimp connection with an end sleeve instead of soldering the strands of the cable end together. The generic hand compression tools disclosed in, for example, DE-OS 3,109,289, are generally used for crimping.
In the prior art the components to be crimped are first assembled loose in an initial operation, then fed to the crimping tool, squeezed together by actuation of the actuating means of the crimping tool and, in a last operation, removed from the tool. Such a work sequence--measured against the entire time it takes to produce a clamped joint--requires a relatively long period of time.
In an attempt to minimize the time required to produce the crimp connection, efforts have been made to utilize machinery to produce crimp connections, as disclosed for example in DE-OS 3,508,354, in industrial use. It has been found, however, that such machinery is suitable only for stationary use since, on the one hand, it has a relatively high intrinsic weight and, on the other, is operable only in conjunction with power connections (compressed air, electric current).
SUMMARY OF THE INVENTION
The object of the invention is to refine the crimping tool to allow simplified production of a crimp connection.
According to one embodiment of the invention squeezing two components together and feeding one of the components to the anvil via a feed means by a single operation of the actuating means makes it unnecessary to assemble the two components outside the hand-operated crimping tool. This allows the crimping operation to be substantially abbreviated as compared with compression with a known crimping tool.
It is especially advantageous when a centering means is assigned to the crimping tool, so that the other component can be fed in the correct position.
An embodiment permits an especially space-saving storage of the components fed in the crimping tool. A magazine may be attached removable to the crimping tool, so as to allow more rapid magazine replacement.
An especially easy-to-handle crimping tool is obtained the components of the anvil susceptible to wear are replaceable.
It is possible to design the feed means in the direction of motion of the movable handle, so that, particularly in conjunction with the feed means a tool with a small width can be produced.
The crimping tool may be suitable for both left-handed and right-handed persons.
Transmission mechanisms enable a sufficient amplification of the manual force exerted in each instance to be obtained with little apparatus, where the opening motion of the movable working arm is controllable by the suitable selection of lever lengths and angle of inclination.
The feed means makes it possible to convert the motion of the handle into a motion of transport of the component to the anvil, the component in the region of the anvil being fixed in place by a hold-down member in the direction of the bearing surface.
An embodiment enables the transport motion to be delayed with respect to the opening motion of the working arm, in order to prevent, for example, collision of the component transported to the cavity with an element of the opening compression jaw.
It is especially advantageous when the component to be fed from outside can be introduced into the component located in the cavity through a centering opening, and the centering opening can be moved apart by a suitable mechanism for removal, through the centering opening, of the components to be crimped from the crimping tool.
Separating means allows an exact separation of the connecting straps of the belt band from the component to be crimped. In butt cutting, i.e., in butt placement of the cutting edges on the plane of shear the cutting means, is cushioned in the movabl
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patent: 4825735 (1989-05-01), Undin
patent: 4953384 (1990-09-01), Baillet et al.
patent: 4980962 (1991-01-01), Wiebe
Hall Carl E.
Zoller & Frohlich GmbH
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