Boots – shoes – and leggings
Patent
1985-03-08
1988-08-09
Harkcom, Gary V.
Boots, shoes, and leggings
340502, 340511, G08B 1900
Patent
active
047632860
DESCRIPTION:
BRIEF SUMMARY
DESCRIPTION
1. Technical Field
This invention relates to a measured data pass-fail discriminating apparatus.
2. Background Technique
In general, so-called digital display type measuring instruments wherein an encoder is attached to a spindle of a micrometer or the like so as to digitally display and store a measured value, being advantageous in facilitating the reading and requiring no skill level, etc., are utilized in various industrial fields.
However, the digital measuring instrument of the type described has a problem of practical use in the interrelation between the measuring component and the characteristics of the machine tool or a measured object after the working operation.
For example, in a measuring instrument, wherein there are set the upper and lower limit values which are compared with measured data to thereby give an alarm, it is too late when the alarm is given in accordance with one of the set values, with the result that a multitude of defectives are worked on. Or, there have been such disadvantages that, in spite of the sufficient allowable tolerance, alarms are frequently given to thereby interfere with the working operation, and moreover, it is indiscernible if the alarms are caused by other factors such as noises or by true defectives.
Particularly, in an improved measuring instrument, wherein a group of measured data are stored, and processed to seek a standard deviation, etc., whereby the quality control as in a group is performed, an operational circuit and the like cannot avoid the increase in size, the economic burden is heavy, such problems are raised in the operation that difficulties are encountered in making a proper selection between the setting of the number of the group of data and the number of articles to be worked on, and such a disadvantage is presented that it is difficult to apply the measuring instrument to any inspection other than an identical article multipoint inspection.
Here, the present invention has been developed to obviate the above-described disadvantages of the prior art and has as its object the provision of a measured data pass-fail discriminating apparatus being outstanding in reliability, controllability and economics.
DISCLOSURE OF THE INVENTION
In view of the above, the present invention is of such an arrangement that there are provided a measuring instrument for outputting measured data and a data discriminating apparatus for discriminating the measured data as a digital value to give an alarm signal, and the data discriminating apparatus includes: means for storing first limiting values for discriminating pass or fail of a work to be measured, second limiting values set closer to acceptance values than the first limiting values and preview judging frequencies, respectively; and means for discriminating the measured data given by the measuring instrument, giving an alarm signal when the measured data exceeds one of the first limiting values, and giving an alarm signal when the measured data continues to lie within a region between the first limiting values and the second limiting values, and a number of said measured data lying within a one of said regions has a predetermined relation with one of the preview judging frequencies belonging to one of the aforesaid regions.
In short, firstly, one of the technical features of the present invention resides in the adoption of an alarm system. Secondly, another of the technical features resides in the adoption of a two step system including defective judging regions and preview judging regions for previewing defectives to give alarms and suggestions for necessary adjustments to a machine tool. Thirdly, a further one of the technical features resides in that, in the defective judging regions, there are adopted one point discrimination systems, wherein, regardless of whether it is a true defectiveness of a work to be measured or a defective measured data value, an emergency call is given by one of the first limiting values for discriminating pass or fail of the work to be measured, and, in the preview
REFERENCES:
patent: 4097849 (1978-06-01), Taylor
patent: 4368641 (1983-01-01), McLeod, Jr.
patent: 4459749 (1984-07-01), Rieder et al.
patent: 4562548 (1985-12-01), Anderson et al.
patent: 4575711 (1986-03-01), Suzuki et al.
patent: 4594580 (1986-06-01), Nelson
Koizumi Hiroshi
Nishimura Takeji
Harkcom Gary V.
Herndon H. R.
Mitutoyo Mfg. Co. Ltd.
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