Патент USA US2114368код для вставки
April 19, 1938- F. E. BERTRAND 2,114,363 ROUNDING MACHINE Filed March 16, 19:57 4 sheetsé'shee-z 1 April. 19, 1938. F. E. BERTRAND 2,114,368 ' ROUNDING MACHINE Filed Mafch 16, 1937 4 Sheets-Sheet 2 $50 » . F1 4L. AWE/WEE’. )ééavd ' April 19, 1938. F‘, E BERTRAND . ROUNDING MACHINE Filed March 16, v1937 2,114,368 ' ' 4 Sheets-Sheet 3 April 19, 1938. F. 'E. BERTRAND ROUNDING MACHINE ‘Filed March 16, ‘1937 2,114,368 ' ~ ‘ 4 Sheets-Sheet 4 WvEA/TUR WMZNQE\&M ' kawhg V lakvflhmf Patented Apr. 19, 1938 2,114,368‘; UNITED’ STATES PATENT OFFICE 2,114,368 ROUNDING MACHINE Frederic E. Bertrand, Lynn, Mass, assignor to United Shoe Machinery Corporation, Paterson, N. J., a corporation of New Jersey Application March 16, 1937, Serial No. 131,209 25 Claims. (CI. 12—17) My invention relates to machines by which Fig. 6, an enlarged detail in elevation and with work-pieces, such as soles or insoles for shoes, parts broken away, particularly showing the sec are produced with the desired peripheral con tours. 5 I - In Letters Patent of the United States No. 2,057,665, Bertrand, October 20, 1936, is disclosed an apparatus by which an outsole is cut from sheet-material by one knife, while, simultane ously, a second knife produces in the material ‘ an incision corresponding in outline to the pe riphery of an insole. It is an object of this in vention to increase the range of sizes to which a machine of this character is applicable, espe cially as to large work, the apparatus being e?i . cient, free from interference and convenient to operate. To this end, improvements are made in the actuating mechanism for the knives, two pivoted arms being employed, one for each knife, these turning about an axis common to both; a spring for urging toward the work the knife upon one of the arms, as the secondary knife or that for outlining the insole, is carried by an enclosure for the spring of the other arm, the connection between the thus-carried spring and _, its arm being made by an extensible member; oscillation of the secondary arm about its pivot and movement of the knife-mounting upon the arm is controlled by a lever or member shiftable in a plane substantially parallel to that of the _ pattern; a handle by which this lever member may be actuated is movable, as under the in fluence of a spring, to a normal, inactive position; effective connections are provided by which the controlling movement is transmitted from the 35 lever to the knife-mounting; the knife is sup ported and adjusted by novel means; and said knife is caused to follow accurately the pattern through the use of a special link-support for its block and an auxiliary spring acting upon the block. While my invention is especially appli cable to machines in which two knives are em ployed, it is to be understood that some of its features may be utilized in single-knife apparatus. In the accompanying drawings, illustrating one ' of the several possible embodiments of my in vention, Fig. 1 is a broken, top plan view of the machine; Fig. 2, an enlarged, vertical, sectional detail through the pivotal support for the knife-arms; Fig. 3, an enlarged detail in elevation, showing the mounting and controlling means for the sec ondary knife; ' Fig. 4, an enlarged vertical sectional detail of the controlling means for the secondary knife; Fig. 5, a similar view on the line V—V of Fig. 1; ondary knife-block and its supporting holder; Fig. 7 is a perspective view, with the elements of the holder and the block separated; Fig. 8, an elevation of one of the block-support ing links; 5 ' Fig. 9, a top plan view of the holder, and Fig. 10, a broken, enlarged detail in elevation of the spring for the secondary arm, together with its supporting and connecting means. In Fig. 1, there appears at In the rotary knife actuating table of the well-known Planet sole rounding machine with its pivoted member l2, upon which is movable the slide 14 revoluble under the in?uence of the table. The primary arm it with its knife l8 (Fig. 6), which, in the present apparatus and that of the previously mentioned patent, produces an outsole, is guided in its travel resulting from the rotation of the table by a horizontal pattern 20. This pattern 20 and an opposed insole-pattern 22 are mounted in a normally stationary position upon the frame of the machine, being movable relatively to each other to clamp for the operation upon it a blank W of sheet-material. The knife-arm l6 turns N) 5 about an upward projection from the slide I4, this being furnished by a sleeve 24 which sur-v rounds a pin 26 (Fig. 2). The pin has a head extending over a secondary arm I9, to which it 30 is secured by screws 28. At its lower extremity, the pin receives a screw 30, which, by engagement with the under side of the slide, holds the arm-' assembly against displacement. The two arms are thus pivoted one above the other about a common axis, they acting independently of each other, presenting the knives advantageously at . all portions of the peripheries of the patterns and being equally capable of a wide range of move ment to provide for the cutting of all‘ sizes of 40 soles and insoles. Carried upon the slide l4 below the arms I 6 and I9 is a casing, of which the cover 32 is shown in Fig. 1 and containing the usual‘ spiral spring 34 acting through a pinion 36 and gear-segment 45 38 to urge the knife 18 upon the arm l6 into active relation to the pattern 20 and to the work. On the slide l4 beyond the end of the arm I9 is carried a casing 40 containing a spiral spring #2 attached at its outer end to the casing. This may be arranged as is best shown in Fig. 10 of the drawings. Turning upon the slide, in what may be an extension from the cover 32, is a ver tical post 44 about which the casing 48 is ro tatable. The inner extremity of the spring 42 2,114,368 2 is secured to the post. In the upper portion of the casing is a groove in which is fastened one end of a cord or cable 46, the other extremity of which is joined to the arm I9. The force of the spring is thus applied to urge the free end of the arm I9 toward the pattern 22, the cord 92. squared portion 48, through the desired angle, at which it is retained by a spring-actuated detent 50 pivoted upon the slide and engaging some one of a plurality of notches formed in the periphery of a disk 52 fast upon the post. Said post may 15 be more securely ?xed in its adjusted position by a pin 54 carried by the slide. All these tension applying members may be so fully removed from the associated elements that there will be no in terference, whatever the extent of movement. At the outer end of the arm I9 are spaced upper 20 and lower branches 56, 56 (Fig. 3), through which is a bore to receive a stem 58 forming a portion of a slide which is one element whereby a secondary or incising knife 60 is moved vertically into and 25 out of engagement with the material W. To force the slide down and the knife 80 toward the work, a spring 62 is contained in a bore in the stem 58, abutting at its upper end against a bridge-piece 64 rising above the upper arm-branch 56. To lift 30 the slide and thereby free the knife from the work, a plate 66 fast upon the upper extremity of the stem has extending downwardly from it a pin or projection 68 resting upon one arm of a lever 70. The lever is fulcrumed upon a horizontal spindle ‘I2 and has a second arm of generally U-shape (Fig. 1) from which rises an extension ‘I4 (Figs. 3 and 4). A horizontal link ‘I6 unites the ex— tension to one arm of a lever ‘I8 fulcrumed for horizontal oscillation substantially parallel to the 40 plane of the patterns 20 and 22 about a post 80 ' extending upwardly from the arm I6 through a slot 82 in the arm I9. A screw 94 threaded horizontally through the arm I9 varies the angular position of the carrier~arm furnishing a ?exible, extensible connection. The normal tension of the spring 42 may be varied by rotating the post, as by a wrench applied to a 10 The arm may be adjusted upon the stem in two directions at right-angles to each other. A second arm of the lever ‘I8 is furnished by a handle 84. Preferably, the handle is pivoted upon an upstanding portion of _ the lever and is normally turned inwardly out of the way by a spring 06. When the operator desires to withdraw the knife 60 from the work, he turns the handle outwardly through 180° and swings it horizontally to the right, as viewed in 50. Fig. 1. This, through the previously indicated chain of connections, tilts the lever ‘I0 away from a stop-screw 88 threaded through the arm I9, against which it is normally held by the spring 62, and lifts the slide by engagement with the pin 68. When the point of the knife has been thus raised above the plane of the material, the plate 68 of the slide contacts with the bridge 64. The force applied to the handle 84 is now effective to turn the arm IS anticlockwise about its pivotal 60 axis against the force of the spring 42, so the secondary knife-carrying elements are separated from the work by successive vertical and hori zontal movements. The movement of the handle carries the arm of the lever to which the link ‘I6 65 is attached past the axis of the post 80, so it is held until the operator turns it oppositely, thus freeing the arm I9 to be swung in by the spring 42 and allowing the slide 58, B6 to be lowered with the knife I50 by the spring 62. Upon release of the handle by the operator, the spring 88 re turns it automatically to its normal inward po sition. Shown as forming a part of the slide 58, 66 is a carrier-arm 90 for the knife 60, this arm being 75 normally secured to the stem 58 by a tapered pin 90, and consequently the amount by which the knife 60 may be caused to lead the knife I8 circumferentially of the patterns in its action upon the work. It also resists the thrust produced as the knife 60 makes its cut. A vertical screw 96 is threaded into the carrier-arm and has upon it 10 spaced portions 98, 98 lying at opposite sides of a lug I00 projecting from the slide-plate 66. R0 tation of the screw raises or lowers the arm to provide for a preliminary positioning of the knife 60 with respect to the plane of the work. After 15 these horizontal and vertical adjustments are ef fected, the arm is ?xed upon the stem by the pin 92. Referring particularly to Figs. 3, 6 and '7, the carrier-arm 90 has pivoted on it to turn about a 20 vertical axis a stem I02 rising from a holder I04. Guided in the holder between a vertical ?xed wall I06 and a separable wall I08 is a knife-block III)‘. In this block, the horizontal shank II2 of the knife 60 may be fastened in the usual manner. 25 The block is supported upon the holder by a pair of links H4, H8 to oscillate'toward and from the pattern 22‘. These links have a width sub stantially that of the block, and the opposite ex tremities of each are rounded at I I8 to enter lat 30 erally and be retained by recesses I20 formed in both the holder and block. Abutting against a projection I22 from the block and a screw I24 threaded through a plate I26 attached to the outer end of the holder is a spring I28 urging the block 35 and knife toward the pattern, this spring passing through an opening I29 in the link H8. The holder has a face I30 somewhat extended hori zontally. This, riding upon the periphery of the pattern, guides the knife 80 through the greater 40 part of its travel and by its horizontal extent prevents the knife from tilting unduly about a vertical axis and thereby maintains it in a de?nite angular relation. This desirable contact-length will, however, as may be seen upon reference to 45 Fig. 9, bridge across some portions of a pattern, as at the inside of a hollow shank. Up to this time, the greater force of the spring 42 will overcome that of the spring I28, and the effect will be as though the knife were secured directly in the hold 50 er. When bridging occurs, the spring I28 forces the rounded end I32 of the block out from the holder, and causes it and the knife 00 to follow accurately the concave portion of the pattern. Adjustable vertically in ways I34 upon the holder 55 I04 is an arm I36 ?xed in place by a slot-and screw connection i38 and raised and lowered upon the holder by a screw I40, the head of which enters a slot I42 in its side. The arm I38 has a contact-face I44 upon the under side of its inner 60 end, which, resting upon the upper surface of the work-piece W, limits the downward movement of the knife 60 and therefore the depth of the inci sion outlining the insole. When a rounding operation is to be performed 65 by the machine, the primary arm I'B is found held in its normal inactive position, as by the usual latch-lever I46, resisting the force of the spring 34, both knives I8 and 60 being removed from the patterns 20 and 22. The secondary arm I9 70 is drawn back and retained by the lever ‘I8, with the mounting-slide 58, 68 and the'intermediate elements raised, so the knife 60 is above the plane which the upper face of the work is to occupy. The patterns 20 and 22 are separated, and be 75 2,114,868 tween them the operator inserts a work-piece W and clamps it in place. The lead of the-insole knife 60 or the extent to which it is out of _ vertical registration with the outsole-knife I8 will have been adjusted by the screw 94, and the approach of the insole-knife to the material by the screw 96, each of these varying the position of the carrier-arm 90 upon the mounting-stem .58. The arm I6 is released to transfer the knife 10' I8 to its operative position, and the operator draws the handle 84 forward and turns it clock wise (Fig. 1) to carry the crank ‘I8 past the center. This ?rst permits the spring 42 acting through the cord 46 to draw the arm I9 into its 15 active position, with the knife Ell against the pe riphery of the pattern 22, and then the spring 62 to lower the mounting until the knife enters ried by the support and vacting upon‘one arm to urge its knife toward one of the patterns, and‘ a spring carried by the support and acting upon the other arm to urge its knifev toward the other pattern. ' '~ 7 5. In combination, a pattern, arms revoluble about the pattern and movable toward and. from said pattern about a common axis, aiknife mount ed upon one of the arms, and a spring carried by the other arm and acting to urge the knife intc- co-operation with the pattern. ' ‘ 6. In combination, two patterns, two arms revoluble about the patterns and movable to ward and from respective patterns about‘ an axis common to both, a knife'mounted upon'each arm and guided by its pattern, and a spring in dividual to each arm and acting to urge the the material ready to produce its out. The ma chine being started in operation, the table I0 and 20 the other supporting elements cause the travel knife thereof into cooperation with the pattern, the springs being supported at the ends of the. of the two knives about their patterns, so the points of operation are shifted to form from the piece W an outsole and to outline insaid piece '7. In combination, two patterns, a revoluble support provided with a projection, two. arms pivoted upon the projection, a knife mounted up on each arm, the knives being‘ guided by the re-' spective patterns, a spring carriedlby the sup 25 an insole. At the convex and flatter concave por tions of the periphery of the pattern 22, the sur face I3II of the holder I04 acts as a guiding means for the knife 60, the knife-block IIII be ing held back with its supporting links H4 and H6 by the excess of strength of the spring 42 30 over the spring I28. But when more abrupt con cavities of the pattern interfere with the normal relation of the holder and knife to the pattern, the spring I28 urges. the block in beyond the sur face I39, so its knife is caused to follow the When the machine stops, the op 35 correct path. erator reverses his acts above outlined, drawing forward the handle 84, thus turning the lever ‘I8 to successively lift the knife 60 ‘from the ma terial and swing out the secondary arm I9, then 40 withdrawing the arm I6 and knife I8. The patterns are separated, and the completed work removed. Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is: - 1. In combination, two patterns, a support, two arms pivoted upon the support about an axis common to both, a knife mounted upon each arm, the knives being guided by the respective pat terns, means for causing movement of the points of operation of the knives about the patterns, and means for urging each arm and its knife toward the corresponding pattern; 2. In combination, two patterns, a revoluble . support, a pin carried by the support, two arms surrounding the pin and movable one above the other upon the support, a knife mounted upon each arm, the knives being guided by the respec tive patterns, and a spring individual to each 60 arm for moving its knife toward the correspond ing pattern. 3. In combination, two patterns, a revoluble support, a pin rotatable in the support, a sleeve surrounding the pin, an arm pivoted about the sleeve, an arm secured to the pin, a knife mount‘ ed upon each arm, the knives being guided by the respective patterns, and means for urging each arm and its knife toward the corresponding pattern. 4. In combination, two patterns, a support provided with a projection, two arms pivoted up on the projection, a knife mounted upon each arm and co-operating with one of the patterns, means for causing movement of the points of operation of the knives about the patterns, a spring car arms. I . - Y ,. 20; port and acting to urge one arm and itsknife toward the pattern, a casing carried by an. en closure for the spring of the last-mentioned arm, a spring contained in the casing, and a ?exible member joining the spring to the other arm. 8. In combination, a pattern, a- pivoted arm revoluble about the pattern, a knife-mounting movable upon the arm, a knife carried bythe 30* mounting‘, means acting upon the‘ arm and mounting to urge the-knife into active co-operae tion with the pattern, and‘ a member movable to control the oscillation of the arm about its pivot‘ and the movement of the ‘knife-mounting upon the arm. ' ' ' > ' 9. In combination, a pattern, a pivoted arm revoluble about the pattern, a knife-mounting» movable upon the arm, a knife carried by the mounting, means actingupon the arm and mount ing to urge the knife into active co-operation. with the pattern, and a lever movablein a plane substantially parallel to the pattern tocontrol successively the oscillation of the arm about its pivot and the movement of ‘the' knife-mounting upon the arm. ' ' ' 10. In combination, a pattern, a» pivoted arm . revoluble about the patternga knife-mounting movable upon the arm, a knife carried by the mounting, means acting upon the‘arm and mount ing to urge‘ the knife into active . con-‘operation with the pattern, a member movable to control the oscillation of the arm about its pivot and the movement of the knife-mounting upon the arm, and a. handle pivoted upon the member to move between active and inactive positions. 1' 11. In combination, a pattern, a pivoted'arm revoluble about the pattern,>a knife-mounting so movable upon the arm, a knife carried by the mounting, means acting upon the ‘arm and mounting to urge thekm‘fe into active co-opera tion with the pattern, a member movable to con 65 trol the oscillation of the arm about its pivot and the movement of the knife-mounting upon the arm, a handle pivoted upon the member to move between active and inactive positions, and a spring urging the handle normally to its inactive 70 position. . 12. In combination, a horizontal pattern, means for clamping work against the pattern, a pivoted arm revoluble about and movable toward and from the pattern, a knife-mounting mov 2,114,368 4 able upon. the arm to present the knife to the work and to withdraw it therefrom, a lever ful crumed upon the arm to move horizontally and acting upon the mounting to withdraw the knife, and a member movable horizontally to actuate the lever, 13. In combination, two patterns, a primary and a secondary arm revoluble about and piv oted to oscillate toward and from the respective 10 patterns, a knife carried by the primary arm and co-operating with its pattern, a knife-mount ing movable upon the secondary arm, and a lever fulcrumed upon the primary arm and mov able to turn the secondary arm about its pivot 15 and to shift the knife-mounting thereon. 14. In combination, two patterns, a primary and a secondary arm revoluble about and pivoted to oscillate toward and from the respective pat terns, a knife carried by the primary arm and 20 co-operating with its pattern, a knife-mounting movable upon the secondary arm, a post extend ing from the primary arm through an opening in the secondary arm, and a lever fulcrumed upon the post and movable to- turn the secondary arm 25 about its pivot and to shift the knife-mounting thereon. 15. In combination, a pattern, an arm revolu ble about and movable toward and from the pat tern, a slide movable upon the arm, a carrier 30 member mounted to turn upon the slide, means arranged to ?x the carrier member in different positions upon the slide, a knife-holder arranged for pivotal movement upon the carrier member, and a knife carried by the holder and co-operat 35. ing with the pattern. 16. In combination, a pattern, an arm revolu ble about and movable toward and from the pattern, a slide movable upon the arm, a car rier member mounted to turn upon the slide, 40 means arranged to ?x the carrier member in different positions upon the slide, means arranged to limit variably the angular movement of the carrier member upon the slide, a knife-holder arranged for pivotal movement upon the carrier with the extension to raise the plate, and a knife movable with the plate and co-operating with the pattern. 19. In combination, a pattern, an arm revolu ble about and movable toward and from the pat tern, said arm having an opening, a plate hav ing a hollow guide-stem slidable in the opening, there being an extension from the plate, a spring situated in the stem and acting to urge the plate downwardly, means contacting with the plate 10 extension to raise the plate, and a knife movable with the plate and co-operating with the pattern. 20. In combination, a pattern, an arm revolu ble about and movable toward and from the pat tern, said arm having an opening, a plate hav 15 ing a guide-stem slidable in the opening, a car rier member variable in position upon the stem, 2. knife-holder pivoted upon the carrier member, and a knife carried by the holder and co-operat ing with the pattern. 20 21. In combination, a pattern, an arm revolu ble about and movable toward and from the pat tern, said arm having an opening, a plate hav ing a guide-stem slidable in the opening, a car— rier member variable in position upon the stem, 25 at knife-holder pivoted upon the carrier member, screws carried by the arm and plate and ar ranged to vary the position of the carrier mem ber in different directions, and a knife carried by the holder and co-operating with the pattern. 30 22. In combination, a pattern, an arm ar ranged to move toward and from the pattern, the arm and pattern having a relative operating movement, links mounted to- oscillate upon the arm, a knife-block pivoted upon the links, a knife 35 ?xed in the block, and means for forcing the block and knife into co-operation with the pat tern. 23. In combination, a pattern, an arm ar ranged to move toward and from the pattern, 40 the arm and pattern having a relative operating movement, links mounted to oscillate upon the arm, one of the links being provided with an opening, a knife-block pivoted upon the links, a _ spring extending through the link-opening and acting upon the block to urge it toward the pat co-operating with the pattern. tern, and a knife ?xed in the block. 17. In combination, a pattern, an arm revolu 24. In combination, a pattern, an arm ar ble about and movable toward and from the ranged to move toward and from the pattern, pattern, a slide movable upon the arm, a carrier the arm and pattern having a relative operating member mounted to turn upon the slide, means 50 50. arranged to ?x the carrier member in different movement, a holder mounted upon the arm and positions upon the slide, means arranged to limit provided with a guideway, a knife-block movable 45 member, and a knife carried by the holder and variably the angular movement of the carrier member upon the slide, means arranged to raise 55, and lower the carrier member upon the slide, a knife-holder arranged for pivotal movement upon the carrier member, and a knife carried by the holder and co-operating with the pattern. 18. In combination, a pattern, an arm revolu 60 ble about and movable toward and from the pat tern, said arm having spaced terminal-portions in which are alined openings, a plate having a guide-stem slidable in the openings, there being an extension from the plate, means contacting in the guideway, and links pivoted upon the hold er and supporting the knife-block. 25. In combination, a pattern, a revoluble arm arranged to move toward and from the pattern, a holder mounted upon the arm and provided with a guideway, a knife-block movable in the guideway, links pivoted upon the holder and sup porting the knife-block, and a spring interposed 60 between the holder and knife-block to urge the block toward the pattern. FREDERIC E. BERTRAND.