Патент USA US2123609код для вставки
July 12, 1938. ‘ R, MITCHELL , 2,123,609 ANVIL FOR STAPLING MACHINES Filed June 26, .1936 229. a; / 11 ' ' 22;. 4, INVENTOR ' @ @ > 10 . fc’aéer/ M/2‘c?e//~ 12 V ‘f ' WWWMF134 Q LJZ ' ’ ATTORNEYS 2,123,609 Patented July 12, 1938 UNITEDv STATES PATENT OFFICE 2,123,609 ANVIL FOR. STAPLING MACHINES Robert Mitchell, Detroit, Mich. Application June 26, 1936, ‘Serial No. 87,435 2 Claims. (Cl. 1-49.) This invention relates to anvils or clincher bars of a type particularly adapted for use with con ventional, hand operated stapling or tacking ma chines. The primary object of the present invention is Cl to provide an elongate anvil or clincher bar which is so designed as to p ermit the use of a conven tional tacking or stapling machine, particularly cover parts during operation of the stapling or tacking. device. With the above and other ends in view the in vention is more fully disclosed with reference to the accompanying drawing, in which Figure 1 is a perspective view of a box with the present anvil associated therewith; Fig. 2 is a side elevation of the anvil and a tacking or stapling device; the hand operated type, for the purpose of secur Fig. 3- is a section taken on the line 3-—3 of 10 ing together overlapping flaps or cover parts of Fig. 2, and v various sizes of cardboard boxes, paper cartons Fig. 4 is a cross section of flaps or cover parts anvil is constructed and the like. To this end, the secured together by a staple. in long, slender form and of a length whereby it Like characters of reference are employed t the overlapping flaps or is adapted to suppor throughout to designate corresponding parts. cover parts on boxes of various sizes throughout The numeral l designates an anvil of elongate 15 the entire width thereof, and in addition to sup form having a pair of grooves 2 in the top surface porting the flaps or cover parts includes means thereof, the grooves being of arcuate section and for clinching the ends of the staples or tacks extending parallel to one another throughout the which are driven through such overlapping ?aps entire length of the anvil, parallel to the sides 20 or cover parts by the stapling machine. thereof. The grooves are provided for the pur Another object of the invention is to provide pose of clinching tacks or staples. A clamping an anvil of the character referred to in the pre bar 3 has a substantially U-shaped formation 4 at ceding paragraph with means for clamping the one end‘ thereof pivotally secured by pins 5 to the overlapping ?aps or cover parts ?rmly together anvil adjacent one end thereof. Adjacent its other end the anvil has an aperture 5 into which 25 whereby the staples or tacks may be easily driven therethrough. To thi s end, the anvil is provided a rigid pin 1 on the clamping bar 3 is adapted. to with a pivoted clamping bar against which project. In the drawing the pin 1 is shown as manual pressure may be applied to- clamp the projecting into the aperture 6 and with the parts overlapping ?ap or cover parts against the anvil. in this position the pin 1 functions to hold the 30 the overlapping parts against the end 8 of the clamping bar from lateral displace 30 By so holding anvil the clinching op eration may be more easily ment with respect to the anvil and the clamping performed and the staples or tacks will be proper bar and to thus hold it in a position with its side ly disposed to provide an efficient holding action. edges parallel to the side edges of the anvil and Another object of the present invention is to parallel with the grooves 2. Oneedge of the clamping bar 3 has an integral provide an anvil of the character referred to angularly extending portion 9, the portion 9 ex above embodying a clamping bar which also func tions in the nature of a straight edge to guide tending perpendicular to the plane of the clamp the movement of the stapling or tacking machine ing bar and perpendicular to the top surface of with respect to the anvil so that the staples or the anvil. With the parts positioned as shown the portion 9 constitutes a guide surface for a stapling 4 O tacks driven thereby will be uniformly and properly spaced in relation to the clincher grooves or tacking device as will also be hereinafter de scribed. At its top edge the guide portion 9 has in the anvil and with respect to the edges of the an outwardly directed ?ange l0 providing a re overlapping ?aps or cover parts of the boxes 45 tainer surface as will hereinafter appear. or cartons. This feature is desirable in that it A tacking or stapling machine of the hand op 4 avoids the placing of the staples 0r tacks too close to the edge of one of the overlapping parts erated type is generally designated by the H. Such machines are well known in and insures su?icient material between the staples numeral the art and are available on the market. They or tacks and the edges of the overlapping parts to are operated by placing the machine ?rmly on prevent tearing away of such edges. the object to be tacked and then pressing down 5O of the present invention is Still another object wardly upon the operating handle, thereby caus to provide an anvil o f the character referred to ing the machine to deliver a staple or tack. In above with a clamping and guiding bar embody order to insure ?rm engagement between the ma ing means for holding a stapling or tacking de chine I l and the objects to be tacked the machine 55 vice in ?rm contact with overlapping ?aps or 55 10 2 . 2,123,609 illustrated is provided with a lateral, hook-like projection I2 on one side thereof, or in some cases there may be a lateral projection I2 on both sides thereof in cases where it is desirable that the machine be moved in either direction with respect to the anvil. In using the present anvil it is placed across the top‘ of a box or carton I3 and the clamping bar 3 is pivotally moved to‘ a position leaving stapling devices which have no parts, such as the lateral projections I2, for engaging the re tainer portion I0. In such cases the retainer portion I0 may be dispensed with, or it may be retained and its edge relied on to function as Cl a guide surface in the manner of the guide portion 9. By means of this invention a very tight and the top of the anvil entirely exposed. The ?aps compact package may be produced, due to the or cover parts ‘I4 are then folded over the anvil fact that the box ?aps or cover parts are held 10 so that they rest in overlapping relation there 7 ?rmly together by the clamping bar. Although a speci?c embodiment of the inven upon. The clamping bar is then moved pivotallyv to the position shown in Fig. 1 where it rests upon tion has been illustrated and described it will be 15 the flaps I4 and where the pin 1 projects into understood that various changes may be made the aperture 6. Manual pressure is then applied within the scope of the appended claims without 15 departing from the spirit of the invention, and on the end 8 of the clamping bar so that the over such changes are contemplated. lapping ends of the ?aps are clamped ?rmly to What I claim is:— gether and ?rmly pressed against the anvil I. 1. A device for supporting parts to be secured The stapling machine II is then placed on top togetherv and for clinching the securing elements 20 of the flaps I 4, with its lateral hook-like pro jection I2 beneath the retainer ?ange III and with which secure them together, said device com prising an elongate anvil, a bar pivoted at one the side of the machine against the guide por end on said anvil and adapted by swinging move tion 9. The machine II is then manually actu ment and application of manual pressure on the 25 ated to drive a staple through the overlapping flaps, and because the guide portion 9 properly free end thereof to clamp the parts to be secured disposes the machine H with respect to the anvil on said anvil, said bar having a straight edge grooves 2, the arcuate surfaces of the latter when thereon for guiding the movement of a device for engaged by the staples so driven cause the ends I6 thereof to be clinched, as illustrated in Fig. 4. By moving the machine I I and repeating the actu ation thereof at intervals a straight row of staples may be driven through the overlapping ?aps I4 and clinched. After the flaps I4 have been se 35 cured together by a sufficient-number of staples the clamping bar is pivoted away from the anvil, the anvil is withdrawn from beneath the ?aps I4 and placed across the top of the same at right angles to the position shown. The ?aps I5’ are 40 then folded across the anvil, the clamping bar restored to its clamping position, and the above described stapling operation is repeated. In order to insure proper functioning of the stapling device it is necessary that it be held in ?rm contact with the parts being stapled. The present device assures such ?rm engagement by provision of the retainer portion I 0 against which the lateral projections I2 engage, the portion I0 functioning to hold the device ?rmly against the HO flaps at all times when the pin 1 is received in the aperture 6. If the clamping bar 3 is not held down with sufficient pressure the pin ‘I will slip from the aperture and the operator thus becomes aware that the parts are not properly disposed for the stapling operation. However, it is be lieved that the invention is not con?ned as to novelty to this retainer portion on the clamping bar and it may also be used successfully with driving securing elements through said parts, and means on said bar for holding said device in ?rm engagement with said straight edge and 30 said parts, said last named means comprising a ?ange on the edge remote from said straight edge, said flange terminating at a point in the length of the bar spaced from the free end thereof. 2. In combination, an elongate anvil, a clamp 35 ing bar pivotally connected at one end to one end of said anvil, means on the other ends of said anvil and clamping bar respectively adapted to be interengaged by swinging movement of said bar and adapted to be held engaged by manual pressure on said bar, means on the free end of said bar for receiving manual pressure to clamp parts to be secured together against said anvil, said bar having a straight edge, a stapling device having a retainer thereon, and a guide surface on said bar adapted to be slidably engaged by 45 said retainer and adapted when engaged to hold said stapling device in contact with said straight edge and to transmit at least a portion of the manual pressure from said bar to said stapling device to hold the latter in ?rm engagement with 50 the parts to be secured, said guide surface termi nating in spaced relation to the free end of said clamping bar whereby the retainer of said stapling device may be slipped thereon while manual pres 55 sure is being exerted upon said clamping bar. ROBERT MITCHELL.