Патент USA US2409511код для вставки
Oct. 15, 1946. E'. A. MILLER‘ r 2,409,508 ‘ PUSH FASTENER ‘Filed March 9, ‘1945 I M. EDWINALIG-UETMILLEFK W ATTY Patented Oct. 15, 1946 2,409,508 UNITED STATES PATENT OFF-ICE 2,409,508 ‘ Y 1 PUSH FASTENER Edwin August Miller, Fair?eld, Conn. Application March 9, 1945, Serial No. 581,80!) 2 Claims. (01. 85—-11) . ' 1 This invention relates to push fasteners, and more particularly to a sheet-material anchoring means to be inserted within a bore or passage and be self-locking when pushed therein and be adapted as a supporting means for a member projecting therefrom. 2 mal and the operated positions, respectively, of the edges 6 of the ?ns 4 and 5, particularly with regard to the outstanding mid-portion 'l of each ?n relative to the line 9 of wall interior surface of the passage Ill’. .The operation of this preferred form of device is very simple but e?ective. The normal outside reach of the ?ns 4 and 5 being greater than the or passage not extending entirely through the inside diameter of the passage H!’ of the work work-piece. ‘ 10 piece l?, the device by means of the manually A further object is to provide an anchoring held push element 2 is forcibly inserted Within means to and from which another member may the passage l0’ so that the ?ns 4 and 5 resist be attached and detached. ingly yield inwardly toward one another sur? With reference to the accompanying drawing ciently to admit their entrance therein ‘to the the Figure 1 illustrates in perspective a preferred 15 locked position shown by the Figure 6 wherein, form of the device; Figure 2 illustrates in perspec upon any attempted withdrawal of the device tive a modi?ed form of the device; Figures 3 and therefrom, the outstanding mid-portion l of the 4 illustrate in perspective views of a further modi ?ns 4 and 5 bite into the wall surface of the pas ?cation, each with parts in a different relative sage ID’ to positively lock the device in its in position; Figures 5 and 6 are upright views of the 20 serted position. It is obvious, however, that if an preferred form of device of which Figure 5 is a attachment (not illustrated) does not make it normal representation and the Figure 6 illus impossible, the U-shaped push element 2 might trates the device locked. Within a passage provided be temporarily or otherwise collapsed laterally by a work-piece shown in cross-section; and the thereof su?iciently to release the bite of the ?ns Figures 7 and 8 are diagrammatic presentations 25 4 and 5 from within the passage ID’ as a means of different positions of the locking elements with of withdrawal of the device therefrom. relation to the line of interior Wall surface of pas The Figure 2 illustrates a slight modi?cation sage designated by heavy circular line. of the device. In this form, the base seat I’ in With more particular reference to the accom tegrally supports an erect shaft of sheet-material panying drawing the numeral 1 designates the 30 as the push element 2' having the bore 3" as one base seats as illustrated by the Figures 1, 5 and 6. means of attaching another member (not illus In this preferred form of device the base seats I trated) thereto. The base seat I’, as in the pre together integrally support an erect fastener push ferred form, supports integrally a ?n 5’ in the element 2 of an inverted U-shape, this push ele identical form as thatof the ?n 5. The opera ment 2 not only serves as a means by which the 35 tion of this modi?ed form of device is‘similar device may be manually pushed and locked with to that of the preferred form, excepting that the in a passage but, in its projected relation to the side edges of the push element 2' cooperate with passage provides a means by which any attach the ?n 5' in centering and holding erect the ment (not illustrated) may be secured thereto. locked device within a passage intended therefor. For such attachment the top 3 of the push ele 40 The anchorage of this form of device is absolutely . ment 2 is provided with the bore 3'. The base positive, there being no way of Withdrawal. seats I also integrally support at an obtuse angle The Figures 3 and 4 illustrate a still further thereto the relatively divergent and upwardly ex modi?cation of the device with a base seat I" tending fins 4 and 5, one upon each side of the having the bore 3"’ which may be tapped to re push element 2. The ?ns 4 and 5 have a convex 45 ceive a screw II by which any erect attachment formation, each presenting an upwardly facing (not illustrated) may be secured to the base seat cutting curved edge 6, the outstanding mid-por I" to be supported thereby as a push element. tion ‘I of each edge 6 providing the locking ele The base seat I" supports the ?ns 4" and 5" ments of the device. The ?ns 4 and 5‘are made of identical form as 4 and 5, the said Figures 3 adapted to yield to the extent of engaging their and 4 illustrating the normal and operated posi corners 8 with opposite sides of the push element tions, respectively. In locked position the corners 2, but such yielding movement of each ?n 4 and 8’ of the ?ns 4" and 5” engage one‘ another in 5 is met with a strongresistance by reason of the the event that an attachment (not illustrated) near rigid quality of the structure of the device. is not positioned between them. The, operation The diagrammatic Figures 7 and 8 show the nor 55 of this modi?ed form- of the device is identical The object of the invention is to provide a per manent fastening means within a preformed bore 2,409,50é 3 as is possible with all of the forms herein dis 4 2. A push fastener comprising a sheet-stock structure having a central body part provided with that of the preferred form, an attachment (not illustrated) providing a push element. The anchorage provided by this form of device is posi— tive, there being no means for withdrawal unless, with a base seat; a resistingly yielding and up wardly extending ?n element supported by said 5 seat and upon each opposite side of said body closed, the cut-material edges of the ?ns are rounded with the intent of producing a device the anchorage of which is frictional only. I claim: 1. A push fastener comprising a sheet-stock part and thus positioned relatively divergent, one to the other; a convex-preformed upper free end portion with which each ?n element is provided; an outer cutting edge of the most far distant mid-portion of the free end of each of said ?n structure having a base seat body part, said struc ture including a resistingly yielding and upwardly extending ?n element supported by said base elements; and corners upon either ‘side of said part at an obtuse angle thereto; a convex-‘pre formed upper free end portion with which the‘ fine element is provided; and an outer cutting edge ,_ of the most far distant mid-portion of said free end of said ?n element. - mid-portions and adapted to engage said body portion upon the extreme yielding movement of > ’ said ?n elements. EDWIN AUGUST MILLER.