Патент USA US3087234код для вставки
April 30, 1963 s. LERMA 3,087,227 BUCKLE MAKING MACHINE Filed Aug. 12, 1957 5 Sheets-Sheet 1 INVENTOR v Sv-spus/v AER/v14 ATTORN EY April 30, 1963 s. LERMA 3,087,227 BUCKLE MAKING MACHINE Filed Aug. 12, 1.957 5 Sheets-Sheet 2 _ INVENTOR STEPHEN L ERA/I4 ATTCRNEY April 30, 1963 s. LERMA 3,087,227 BUCKLE MAKING MACHINE Filed Aug. 12, 1957 5 Sheets-Sheet 5 §. INVENTOR '\ STEPHEN LEPMH B%% @& ATTORNEY April 30, 1963 s. LERMA 3,087,227 BUCKLE MAKING MACHINE Filed Aug. 12, 1957 s Sheets-Sheet 4 Ir-Q‘J'EwTOR S TEPHEN AER/val BY (kw/u“ ATTORNEY April 30, 1963 s. LERMA 3,087,227 \ BUCKLE MAKING MACHINE 5 Sheets-Sheet 5 '1 v " 7 62 z 8 % 5 92 / //05 INVENTOR STEPHEN ZER’MA BY - ‘a’ ATTORNEY United States Patent 3,087,227. ,. ICC Patented Apr. 30, 1963 1 2 3,087,227 similar recess 37 of a size and shape to center and support the plastic sheet C which is to cover the skeleton of the BUCKLE MAKING MACHINE Stephen Lerma, 141—-19 73rd Ave., Flushing 67, N.Y. Filed Aug. 12, 1957, Sex‘. N0. 677,665 1 Claim. (or. 29-3) buckle. The female 20 which cooperates with the male dies just described is shown in the upper half of FIGURE 4. The numeral 21 designates a head attached to a piston 27, carrying upon its underface a rim or wall 41 generally similar to the wall 30 except that the thickness of this wall 41 corresponds to the dimensions of the sides of the This invention is a machine for making buckles for garments and the like, and more particularly for cover ing the metallic frame for such a buckle with a covering material such as cloth, leather or plastic, but which, for 10 completed covered buckle. Fitting within the wall 41 is a core 42, and surrounding convenience, will here be spoken of as plastic. The skel the wall 41 is a centering peripheral block 43. The core eton frame, as here shown, may comprise a rim of a 42 and the centering block 43 are connected for coordi skeleton A, forming a hollow square having a cross bar nate movement by a pin 44 movable in slots 45 in the B connecting the mid-point of two opposite sides. The rim is deeply dished in cross-section, giving a shallow 15 wall so that they may slide up and down relative to the wall, and yet be limited in the amount of such movement. under face, and in the manufacture of the buckle a fabric Springs 46, carried in recesses in the core urge the core to its lowermost position as shown in FIGURE 4. A latch 47 pivoted on the head 21 is spring pressed to engage or plastic sheet C is bent around the convex surface so formed and folded up into the hollow of the rim. An inner frame D is then forced into the hollow over the edges of the plastic, and the edges of the plastic C‘ and 20 a shoulder 48 on the block 43, so that the core and block cannot be moved upwardly relative to head 21 until the rim A are clamped down over the inner frame. catch is released. This invention relates to a new and improved machine The ?nishing head (see lower left hand corner of FIG URE 4) comprises a block 50, also attached to the slide cally, and of a more reliable quality. The machine of this invention is hereinafter described and is shown in the 25 24, to which there is fastened a ?at plate member 51 hav ing an upstanding wall 52 of substantially the same hori accompanying drawings, in which FIGURE 1 is a side zontal cross section as the wall 30', but having a more elevation of the device. FIGURE 2 is a fragmentary sharply pointed central ridge 53. Within the wall 52 is section of the line 2-—2 of FIGURE 1 looking in the di a core or die 54 which is spring pressed upwardly by rection of the arrows. FIGURE 3 is a fragmentary sec tion on the line 3—3 of FIGURE 1, looking in the direc 30 springs 55, and it is guided in its upward movement and limited in the upward travel by screws 56, screwed into tion of the arrows. FIGURE 4 is a fragmentary central it, ?tting in slots 57 in the wall. On the outer side of the vertical section on a plane parallel to the plane of the wall 52 is a centering peripheral member or die 58 also paper as shown in FIGURE 1. FIGURE 5 is a section slidable on the wall, and urged upwardly by springs 59. on the line 5—5 of FIGURE 4. FIGURE 6 is a section of the line 6——6 of FIGURE 4. FIGURES 7, 8, 9, 10 35 The core 54 and the member 58 are connected for co ordinate movement by a pin 60 extending through them show details of successive steps in the fabrication of a both, and sliding through a slot 61 in the wall between buckle, all being fragmentary sections through one side v them. of the dies. FIGURE 11 shows the electric circuit for The upper edges of the core 54 and the member 58, controlling the apparatus, and FIGURE 12. is a perspec where they face each other, are bevelled, as shown at 62 tive view of a complex buckle. 40 to assist in forcing the plastic to enter between the edges This machine comprises generally, a female die 20‘ car of the skeleton to the interior. ried upsides down upon a vertically reciprocatory head The operation of the dies is as follows: 21, and two cooperating male dies 22 and 23, mounted for making such buckles more easily and more economi In the manufacture of a buckle a metal skeleton A is upon a slide 24 in such a manner that they can be alter nately brought into cooperating position with the female 45 laid upon the top of the wall 30 as shown in FIGURE 4, with the concave side of the rim ?tting over the convex die. This movement of the slide 24, carrying the male upper face of the wall 30‘. The recess 35 is of a dimen dies is accomplished by a piston and cylinder 25 operating die 20 is accomplished by a piston and cylinder 27. The sion to assist in this centering movement. Thereafter, a pre-cut strip of plastic C is laid over the Before taking up the mechanism for operating these block 43 with the plastic and then carrying it down a piston rod 26. The vertical movement of the female die, 22, as here shown is the initial or forming die, and 50 ' skeleton and is itself centered by the recess 37 into which it ?ts. The die 21 is then depressed, thus ?rst engaging the die 23 is the ?nishing die. around wall 30, as shown in FIGURE 7, until the plastic folds itself around the skeleton, and both of them are ‘of each die, and the functions it is to perform. The forming die 22 (see FIGURE 4) comprises a base 55 pressed up into the space between the core 42 and the block 43 as shown in FIGURE 7. During this move~ 7 block 28 which may be cylindrical in form, which is at ment the relative position of the wall 41 and of the core tached to the slide 24. ‘A rectangular block 29 of almost 42 and block ‘43 is maintained because’ of the latch 47 the size and shape of the ?nished buckle is mounted on dies in proper sequence, we will describe the construction the block 28 and has its upper face hollowed out to leave a peripheral wall 30 of a size and shape to ?t into the hol low of the rim A of the buckle. A centering peripheral which prevents relative movement between wall 41, core so, member 31 is slideably mounted on the outside of the block 29 and is urged upwardly by a spring 32. Its up permost position is determined by a screw 33 in the pe ripheral member 31, ?tting into a slot 34 in block 29. 42, and block 43. As the die 20‘ rises, the partially ?nished buckle, com prising the curved plastic with the metallic skeleton within it, is left within the female die, as shown in FIGURE 8. Meantime, an inner frame D has been laid upon the top sition has a recess or cut-out 35 surrounding the top of of the wall 52 lying between the core 54 and the mem ber 58. The forming die is then moved out from under the die the wall 30. This recess has its vertical face 36 spaced far enough from the wall 30 and its bottom face 36a far die 21 in this position will ?rst cause the latch 47 to en The peripheral member 31, when in its uppermost po 65 21 and the ?nishing die takes its place. A depression of enough below the top of the wall to permit the skeleton 70 gage a cam 70 on the member 58, releasing the latch 47 from engagement with the shoulder v48» so that any pres frame of a buckle to rest within it while ?rmly resting on sure upward on the blocks 42 and 43 will cause them to the top of the wall. This peripheral member 31 has a 3,087,227 3 move upward relative to the wall ~41 because the springs 46 are materially weaker than springs 59‘ and 55. 4 in position to contact the ?nger 1'17, and it has on its outer end a roller 11419. An arm 120 carried by the head On depression of die head 21, therefore, while in regis 21 is in such position that \on its upward stroke it will try with the ?nishing die, the core 42 and the block 43 yield until they engage the head 21, at ‘which time the push the lever 118 inwardly, depressing the ?nger 117 partially ?nished buckle has been forced down to the posi operated through the contact 1-'15-to energize the primary and closing the switch 114, as seen in FIG. 11. This tion shown in FIGURE 9, and during this movement the of the'transformer 103. projecting ends of the plastic are bent inwardly toward Since in each position of the slide one or the other of the center by the bevelled surfaces 62. The further de the switches 106 and 107 is closed, and the other opened, pression of the head 21 depresses the core 54 and member 10 it will be clear that on the depression of switches 93 and 58 until the inner frame D is pushed upwardly and into 94 the solenoid 71 will be energized to depress the head the interior of the rim of the skeleton, during which move 21 until it engages the die 22, or the die 23, dependent on ‘ ment the downward projecting sides of the skeleton itself which position the slide is in. When (the switches 93 and are ‘bent inwardly to embrace the inner frame as shown 94 are released the head 21 rises upwardly, to its upper in FIGURE 10 thus holding all parts of the buckle ?rmly 15 position. During this movement the arm ‘120 engages the together. roller 119, actuating the solenoids .1011, or 1102, depend~ The piston and cylinder 27 for vertically moving the ing upon what switch is closed. It will be seen that the female die are operated by an electrically controlled down slide is moved alternately from one position to another, stroke control mechanism, here represented as 71. This as soon as the vertical head 20 reaches its uppermost posi may be of conventional form. tion. This control is energized from a main line 90 by the A light switch 121 is mounted beneath the arm 120 following mechanism in sequence: A line switch 91 is and controlls the circuit, to operate a signal light 122, connected by a wire 92 to two manual switches 93 and 94, indicating that the closing operation is completed. and then through a line 95 to the solenoid operating The operation of the device will be clear from the de mechanism 71, returning back to the line by a wire 95A, 25 scription given. The machine, when idle, is electrically and thus, the switch 91 being closed, the solenoid 71 and dead, the circuit being open at the switch 911. This switch hence the female die may be operated only by simul taneously depressing switches 93 and 94. One of these switches is on one side of the machine, and the other on the opposite side, so that both hands are required to operate them. The for-ward and back pistons 25 are also of a conven~ tional type, having a separate electrical control mecha nism for each movement. These are all of conventional design and need not be shown in detail. In the wiring diagram of FIGURE 11 these are represented by separate solenoids ‘101 and 102; 101 being intended for the for ward movement of the piston, to place the forming die in registry, and solenoid 102 for the backward movement is closed at the beginning of operations. The switches '93 and 94, on opposite sides of the ma chine, are so arranged that they cannot be operated by one hand, so that both hands are required toiactuate the machine. The buckle frame, as shown in FIG. 12, let tered A, is laid in the forming \die within the recess 35', thereupon the covering material C is laid over it within the recess 37. With the pants in this position, switches 35 93 and 94 are simultaneouly actuated, thereby energizing solenoid 71, moving the piston assembly 27 to bring the die 20 into engagement with the forrningdie. As soon as block 43 engages member ‘31 it forces member 31 of the slide, to place the ?nishing die in registry. Both of downwardly, because it, itself, is locked at 48. This bends the plastic sheet around the edges ofrthe buckle these solenoids are operated from a transformer 103, re skeleton, as shown in FIG. 7. As soon as the die .20 ducing the voltage from 110 to 10, and as here shown, reaches the bottom of its stroke, it goes up‘ ‘again, tak one side of the secondary of the transformer is connected ing the buckle frame and-the plastic with it, as shown in FIG. 8. by a wire 104 to each of the solenoids 102 and 101, while the other side is connected by a wire 105 to a switching 45 The inner frame of the buckle D may then be inserted mechanism composed of switches 106 and 107. Both of in the ?nishing die 23, above the wall 53. these switches are mounted adjacent to the slide 24 and The upward movement of head 21 actuates switch 114 one of them, v106, makes contact when the slide is in the to move the slide 124, carrying the forming die out of the forward position, and the other, 107, makes contact when way of the female die and to bring the ?nishing die into registry. the slide is in retracted position. (See FIG. 2.) Each of these switches is of a conventional form, comprising a The switches 93 and 94 are then again simultaneously body 106a or 107a, containing the switch and an extend closed and the female die, carrying the partly ?nished ing ?nger 108 or 109, the switches being so arrangedthat buckle descends upon the ?nishing die, in the condition when the ?nger is depressed, contact is made, and when seen in FIG. v8. When the dies 54 and 58 come in contact the ?nger is released the contact is broken; and the slide with the cover member on the partly formed ‘buckle, the projecting edges of the plastic are bent inwardly by 24 has two arms, 1'10 and 111, so situated that when the slide is in a forward position the ?nger 108 will be de the inclined face v62, as shown in FIG. 9'. pressed, and when the slide is in retracted position the A further depression of the head 21 forces the mem ?nger 109 will be depressed. bers 54 and 58 downwardly, until the tapered surface, comprising the upper ‘edge of the wall '53 pushes the in These switches 106 and -107, however, do not them selves make or break the circuit, they only determine terior element D into the interior of the concavity of the which direction the slide will move. The energization is edge strips of the buckle skeleton. As the head continues controlled from the primary circuit of the transformer. to descend the edge strips of the buckle skeleton en The primary of the transformer 103‘ has one side con counter the inclined bevels 62, and are themselves, in nected by a wire 1112 to the incoming line'90‘. The other 65 turn, bent inwardly beneath the bottom .of the inserted side of the primary is connected by a wire 113‘ to a switch strip. As shown in FIG. v10, the buckle is new complete. 114, mounted on the machine frame and operated'by It can be lifted outof the device as soon as it is raised. the vertical movement of head 21. From switch ‘114 As the head goes up, however, the switch r114 is again it passes through a contact 115 on switch 93 to'wire92. actuated, to energize the-solenoid 102, to bring the form The switch 114 which actuates this circuit is best shown 70 ing die again into registry for the beginning of the next operation. in FIGURES 1 and 3. This ‘switch comprises a switch body ‘116 mounted on the frame, the switching elements What I claim: being controlled by a depressable ?nger 117, the depres A framework supporting a female die for vertical sion of which actuates the switch. This ?nger 117 is movement, a forming die and a ?nishing zdie attached to a depressed by a lever 118 pivoted to the switch body 116 75 common base, and means for sliding said base to bring 3,087,227 5 6 said dies alternately into accurate registry with said female die, said forming die having a wall on which a buckle frame may be placed and thereby centered, and a References Cited in the ?le of this patent UNITED STATES PATENTS table surrounding said wall, vertically movable and spring 1,251,128 Steedman —————————— —— Dec- 15» 1917 supported relatively thereto on which a buckle cover may 5 1,914,514 Lapham ———————————— —— June 20‘: 1933 be placed, said female die having a recess comprising channels therein conforming in shape to the buckle frame upon said wall, but the width of said channels being greater than the side bars of the buckle, whereby when 1,957,842 29091487 2,323,814 2,594,520 McDonough —————————— —— May 8’ Ernst —————————————— —— July 30» Lflmb ——————————————— —— July 6’ Tledman ———————————— —- APY- 29’ 1934 1935 ‘1943 1952 the female die is depressed in registry with the forming 10 2,790,340 Cross ______________ __ Apr. 30, 1957 die, the buckle cover will be folded over the frame and ‘2,841,859 Spendel ————————————— -— July 8’ 195 8 both will be forced into said channels in the female die.