METHOD OF SECURING KNOBS ON LEVERS
A METHOD OF SECURING TO AN OPERATING LEVER (1) IN THE FORM OF AN ELONGATED METAL PLATE AN OPERATING BUTTON (6) MADE OF THERMOPLASTIC RESIN AND INCLUDING A MOUNTING TONGUE (13) OF A GENERALLY TUBULAR CONFIGURATION HAVING A HOLLOW (7) DEFINED THEREIN. AN ANCHOR PERFORATION (3) AND A STOPPER PAWL (4,5)...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A METHOD OF SECURING TO AN OPERATING LEVER (1) IN THE FORM OF AN ELONGATED METAL PLATE AN OPERATING BUTTON (6) MADE OF THERMOPLASTIC RESIN AND INCLUDING A MOUNTING TONGUE (13) OF A GENERALLY TUBULAR CONFIGURATION HAVING A HOLLOW (7) DEFINED THEREIN. AN ANCHOR PERFORATION (3) AND A STOPPER PAWL (4,5) ARE FIRST FORMED IN THE OPERATING LEVER (1) AND THE OPERATING BUTTON (6) IS THEN TEMPORARILY MOUNTED ON THE OPERATING LEVER WITH THE OPERATING LEVER SLID INTO THE HOLLOW (7) OF THE MOUNTING TONGUE (13) UNTIL AN ABUTMENT (11) DEFINED IN THE MOUNTING TONGUE (13) AND POSITIONED WITHIN THE HOLLOW (7) IS BROUGHT INTO ENGAGEMENT WITH THE STOPPER PAWL (4,5). WHILE THE OPERATING BUTTON IS THUS TEMPORARILY MOUNTED ON THE OPERATING LEVER, THE OPERATING LEVER IS PLACED ON A SUPPORT BENCH (15) WITH ONE OF OPPOSITE SURFACES OF THE OPERATING LEVER (1) HELD IN CONTACT WITH THE SUPPORT BENCH (15), AND A PRESSURE IS SUBSEQUENTLY APPLIED TO AN AREA (8) OF THE MOUNTING TONGUE (13) WHICH IS SUBSTANTIALLY ALIGNED WITH THE ANCHOR PERFORATION (3) BY MEANS OF A PRESSER (16) TO THEREBY FORM AN ANCHOR PEG (17) PROTRUDING INTO THE ANCHOR PERFORATION (3) IN THE OPERATING LEVER (1).FIGURE 3 |
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