Electricity: circuit makers and breakers – Interlocking – Between plural switches
Patent
1997-04-25
1998-12-08
Coggins, Wynn Wood
Electricity: circuit makers and breakers
Interlocking
Between plural switches
200331, 7447901, H01H 120, H01H 320, G05G 1100
Patent
active
058473416
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention concerns an evaluation apparatus for the transmission of mechanical motion used in a system for mutually locking power switches. The power switches a carrier for a first input slide and an output slide guided approximately in parallel to the input slide, as well as a coupling element acting as a driver for positive transmission of a motion of the first input slide into a motion of the output slide.
2. Description of the Prior Art
An evaluation apparatus was disclosed by German Patent 44 09 172 A1. The coupling between two input slides and an output slide is achieved through an approximately T-shaped coupling member. A positive coupling is established so that the motion of one of the two input slides causes the output slide to move. This corresponds to an OR function. If the T-shaped coupling member is designed as a rocker with a constrained pivoting angle, the evaluation apparatus operates as an AND element.
SUMMARY OF THE INVENTION
The object of the present invention is to provide an evaluation apparatus operating as an AND or OR element whose function can be switched by the user in a simple manner.
This object is achieved according to the present invention by the fact that the coupling member in the first input slide can be detachably installed, the carrier has a guide for a second input slide assigned, if needed to the first input slide and arranged approximately as a mirror image in relation to the output slide. The output slide has symmetrically arranged extension arms serving as a stop for the coupling member of the first input slide and optionally the second input slide.
The embodiment with one input slide only and with a coupling member installed in the input slide forms the basic embodiment of the evaluation apparatus. The input slide and the output slide are coupled together so that the motion of the input slide is transmitted synchronously to the output slide. The transmission of force can be interrupted by removing the coupling member, which can be desirable when creating locking devices for test purposes.
A mechanical OR element with two inputs can be created through the extension arms being symmetrically arranged on the output slide as a stop for the coupling member, by optionally using the second input slide in connection with the coupling members installed.
It has been proven advantageous if the input slides have a female thread where the coupling member designed as a screw can be installed. Such a coupling member is easily handled by the user and allows a simple visual check of the operation of the coupling to be performed.
The evaluation apparatus can be configured so that it can be optionally used as an AND element with two inputs through a suitable design of the input slides and the output slide without modifying the arrangement of these elements. For this purpose, the output slide must carry a roller whose diameter is larger than the distance between the first and second input slides, with the distance between the first and second input slide being widened over part of their length to accommodate the roller through a recess. The depth of each recess corresponds to at least the difference between the diameter of the roller and the distance between the first and second input slides, and the roller is movable transversally in relation to the first and second input slides. If the function of such an evaluation apparatus is considered in an embodiment without coupling members, the output slide will only move when the input slides move at the same time or consecutively. If only one of the input slides is moved, the roller is displaced outward laterally and the output slide remains at rest. The AND function and the OR function can also be combined in the same evaluation apparatus by providing only one of the input slides with a coupling member.
The transverse mobility of the above-mentioned roller with regard to the input slides can be achieved by providing the roller with a pivot bearing rigidly connected to the
REFERENCES:
patent: 4019166 (1977-04-01), Lawrence et al.
patent: 4433591 (1984-02-01), Green
patent: 4626638 (1986-12-01), Samples et al.
Coggins Wynn Wood
Hayes Michael
Siemens Aktiengesellschaft
LandOfFree
Evaluation apparatus for a powder switch mutually locking system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Evaluation apparatus for a powder switch mutually locking system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evaluation apparatus for a powder switch mutually locking system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-180170