Патент USA US2108399код для вставки
Feb. '15, 1938. w. R. ALLEN, 3D - 2,108,399 MOUNTING DEVICE FOR TUBULAR ARTICLES Filed March 27, 1937 INVENTOR. - I'V/ZZM/I/ ff?ddflll Alli/V E “QM //. ATTORNEY. 2,108,399 Patented Feb. 15, 1938 UNITED STATES PATENT. OFFICE 2,108,399 MOUNTING DEVICE FOR TUBULAR ARTICLES William Russell Allen, III, Spring?eld, Mass, as signor to United American Bosch Corporation, Spring?eld, Mass, a corporation of New York Application March 27, 1937, Serial No. 133,323 3 Claims. (Cl. 250-16) This invention relates to means for mounting jecting downwardly and is pushed through the tubular articles and more particularly to a de vice for securing radio coil forms and their asso ciated shield cans to a chassis. In the past it has been customary to provide coil forms with longitudinally extending threaded posts which were riveted to the end of the coil form, and the shield cans were similarly con structed. The radio chassis was punched to re ceive the numerous mounting posts and an indi 10 vidual operation was required to thread a fas tening nut on each post and so secure the re spective articles to the chassis. The invention to be described herein discloses a simple fastening device for such purposes which adapts itself to mass production methods, and which requires but form until the pins contact the ?ange 6. Con tinued pressure on a suitable inserting tool (not shown) causes the pins 2 to pierce the coil form 5 at the intersection of the ?ange 6 and the pins are bent outwardly against the resistance of the radio chassis ‘I (Fig. 3). A screw 3 is inserted through an opening in the chassis 2' and engages the collar 3 of the mounting device to draw it down securely. The pins 2 cut into the chassis material su?iciently to resist any subsequent turning of the coil form. As shown in Fig. 3, the coil form 5 may ‘be placed in a shield can 9 having a bottom wall or one mounting operation to secure both a coil and web suitably apertured, and both elements may be secured to the chassis 1 in the manner above described. The mounting thus provided is eco its shield can to a chassis. nomical in cost, and reduces the assembly labor > One of the objects of this invention is to pro vide improved means for mounting tubular ar 20 ticles which shall be more e?‘icient in operation and convenient in installation. Another object is to provide a mounting mem ber which is more simple in construction. A further object is to provide a mounting mem 25 ber which may be more economically produced. Still a further object is to provide a mounting member for radio coils and shield cans which re quires but a single attaching operation to secure both articles. Other objects and advantages will in part be speci?cally stated and in part be obvious when the following speci?cation is read in connection with the drawing, in which: Fig. l is a perspective view of the improved ~ device; Fig. 2 is a view showing the device as applied to a radio coil; and Fig. 3 is a view show— ing a shield can and coil partially broken away to illustrate the mode of operation of the mount ing device. Referring in more detail to Fig. 1, there is shown a circular body I of sheet metal having integral depending pins 2 and a struck up cen tral collar 3, provided with internal threads 4. The device may be formed in a single stamping operation and may have the threads 4 subse quently cut, or if the metal is relatively soft, a self-tapping screw may be employed in cooper ation with the device to form the threads. In Fig. 2 there is shown a conventional tubular 5 O radio coil form 5 having windings thereon. The coil form 5 may be of any suitable insulating material such as waxed paper, and has an end ?ange 6 formed thereon by crimping or other wise. The mounting device I is inserted in the 55 open end of the coil form 5 with the pins 2 pro as well as obviating the cost of providing a plu rality of fastening members as in the former practice, to achieve the same object. , 20 It will be apparent that many changes and modi?cations may be made by anyone skilled in the art without departing from the spirit and scope of the invention as expressed in the follow 25 ing claims. 1. In combination, a tubular article having an inwardly extending ?ange formed at one end, a support, a mounting element within said article, a plurality of deformable pins on said element 30 adapted to pierce said article and deform against said support, and means for urging together said element and said support. 2. In combination, a tubular article having an inwardly extending ?ange formed at one end, a support, a mounting element within said article, a plurality of deformable pins on said element adapted to pierce said article adjacent the base of said ?ange and radially deform against said support, and means for urging together said ele 40 ment and said support. 3. In combination, a tubular radio coil form having an inwardly extending ?ange formed at one end, a support, a mounting element within said form having a central opening therein, a 45 plurality of deformable pins on said element, a shield can enclosing said coil form and having a bottom portion extending under said form, and a screw extending through said support and said bottom portion of said shield can and engaging said mounting element at the central opening thereof, whereby said pins may be caused to pierce said coil form and deform radially. WILLIAM RUSSELL ALLEN, III.