US2832377A - Apparatus for attaching wirebound box parts - Google Patents

Apparatus for attaching wirebound box parts Download PDF

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Publication number
US2832377A
US2832377A US464000A US46400054A US2832377A US 2832377 A US2832377 A US 2832377A US 464000 A US464000 A US 464000A US 46400054 A US46400054 A US 46400054A US 2832377 A US2832377 A US 2832377A
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US
United States
Prior art keywords
prong
forming assembly
box
movement
prong forming
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US464000A
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English (en)
Inventor
David G Kingsley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stapling Machines Co LLC
Original Assignee
Stapling Machines Co LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stapling Machines Co LLC filed Critical Stapling Machines Co LLC
Priority to US464000A priority Critical patent/US2832377A/en
Priority to FR1137682D priority patent/FR1137682A/fr
Priority to US676200A priority patent/US3025892A/en
Application granted granted Critical
Publication of US2832377A publication Critical patent/US2832377A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/34—Manufacture or reconditioning of specific semi-finished or finished articles of cases, trunks, or boxes, of wood or equivalent material which cannot satisfactorily be bent without softening ; Manufacture of cleats therefor
    • B27M3/36—Machines or devices for attaching blanks together, e.g. for making wire-bound boxes

Definitions

  • the box ends are usually made of a relatively thin veneer with reinforcing binding wires stapled thereto.
  • These box ends like the box blanks, are made in machines of A the general type disclosed in the aforementioned Patent No. 2,304,510, the box ends being formed in a continuous succession joined together by the binding wires.
  • box ends have heretofore been secured to a box blank by extending the loops through notches in the outside cleats of the box blank and bending the loops around the outside binding wires of the box blank, as disclosed in the aforementioned Patent No. 2,281,903.
  • this method of attaching the box ends by means of loop fasteners necessitates the use of a loop fastener machine in making the box ends.
  • the present invention accomplishes these objects by providing an apparatus for attaching wirereinforced parts to wirebound boxes which involves forming a prong at the end of the reinforcing wire on the box part and driving this prong into one of the outside cleats of the box blank.
  • Figure 1 is a side elevational view of a hand-tool for forming and driving prongs which embodies features of the present invention, with the positions of certain inter nal parts being shown in broken lines.
  • Figure 2 is a horizontal sectional view of the tool taken generally along the line 2--2 of Figure 1.
  • Figure 3 is a vertical sectional View of the tool, taken generally along the line 33 of Figure 1.
  • Figure 4 is a vertical sectional view of the tool taken generally along the line 33 of Figure 4.
  • Figures 5, 6, 7 and 8 are views similar to Figure 4 but showing the tool in successive stages of its operation of forming and driving a prong.
  • the hand-tool generally comprises a main frame 10, a prong forming assembly 12 which is movably mounted on the main frame, and a pneumatic cylinder 14 which is mounted on the upper rear portion of the main frame and extends rearwardly therefrom in position to form a convenient handle by' which the tool may be grasped.
  • the frame 10 is formed of a pair cfsimilar, laterally spaced, parallel side plates lldwhich are provided at their forward ends (their right-hand ends as viewed in Figures 1 and 2) with hook portions which, as illustrated in Figure 4, are adapted to be engaged behind one of the outside cleats C of the box blank and support the tool and box blank against relative movement during a prong forming and driving operation.
  • the forward ends of the two side plates 16 are braced and maintained in properly spaced relation by a backing plate 18 which is removably secured to the inner edges of the hook portions 16a by screws 20 ( Figure 2).
  • This backing plate 18 is arranged to abut the inner face of the cleat C when the tool is in proper position relative to the box blank, and is readily removable so that plates of different thickness may be substituted to accommodate difierent sizes of cleats.
  • the prong forming assem bly 12 comprises a pair of laterally spaced, parallel side plates 22 and 23.
  • the rear end of the prong forming assembly 12 is pivotally supported on a Wrist pin 24 (Figure 2) which extends between the side plates 22 and through the forward end of a slide 26 which is received between them.
  • the slide 26 is reciprocably supported at its lateral faces between guide plates 23 ( Figure 2) secured to the inner faces of the side plates 16 and at its bottom and top edges by spacer blocks 30 and 32 respectively ( Figure 4), which extend between the side plates 16 and brace them in properly spaced relation.
  • This mounting arrangement of the prong forming as sembly 112 permits it to move both longitudinally by reciprocation of the slide 26 and pivotally about the pin 24.
  • the slide 26 is normally urged toward its rearward position in which it is shown in Figures 1, 2 and 4 by means of a coil spring 34 (Figure 2) the forward end of which is hooked through an opening 264: at the rear end of the slide and the rearward end of which is hooked through an opening in the inner end of a screw 36 which is threaded through an end plate 38 at the rear end of the main frame 10 and through a lock nut 40 at the outer face of the end plate 38.
  • the screw 36 is adjustable longitudinally to vary the degree of tension on the spring 34-, with the lock nut 40 maintaining it in the adjusted position. Rearward movement of the slide 26 under the urging of the spring 34 is limited by means of a stop block 42 ( Figure 4) which is screwed to the upper spacer block 36 in position to engage a shoulder 26!) at the rearward end of the slide 26.
  • the side plates 22 of the prong forming assembly 12 are provided with paired upstanding arms 4.4 (Figure 1) between the upper ends of which is received the forward end of a piston rod 46 which, as shown in broiten lines in Figure 1, is attached at its rearward end to the piston 48 of the pneumatic cylinder 14.
  • the piston rod 4 is pivotally attached to the arms 44 by means of a pin 50 which is fixed at the forward end of the piston rod 46 and extends through vertical slots 44a in the upper ends of the arms 44.
  • the rearward end of the pneumatic cylinder 14 is connected through a pressure line 52 with an air compressor through a valve which is actuated by means of a push button 54 located on top of the cylinder 14 in position for convenient actuation by the thumb of the operator.
  • the forward end of the cylinder 14 ahead of the piston 48 is vented to atmosphere, and a coil spring 55 encir cling the piston rod 46 and compressed between the piston 48 and the forward end wall of the cylinder urges the piston rearwardly in the cylinder.
  • Depression of the button 54 causes compressed air to enter the rearward end of the cylinder 14 and force the piston 48 forwardly against the resistance of the spring 55, driving the upper ends of the arms 44 to the right as viewed in Figure 1.
  • Figures 1 and 4 illustrate the position of the prong forming assembly when the piston 43 is in its rearmost position.
  • the prong forming assembly in this position of the piston, is cocked upwardly with the lower edges of the side plates 22 and 23 spaced well above the upper surface of the stop block 56. This is the position of the prong forming assembly 12 at the start of a prong forming and driving operation.
  • a fixed cutting knife 58 secured to the upper portion of the inner face of the side plate 16 which appears at the left in this figure is a fixed cutting knife 58 which, as may be seen in Figure 4, is positioned so that its upper surface is just beneath the line of the binding wire W which extends from the box end E through a notch N in the aforementioned cleat C of the box blank.
  • the knife 5% is provided with a cutting edge 53a which extends obliquely across the line of the binding wire W.
  • a movable cutting knife 66 secured to the inner face of the side plate 22 of the prong forming assembly 12 is a movable cutting knife 66 the lower surface of which, as shown in Figure 4, is positioned above the line of the binding wire W when the prong forming assembly 12 is in its uppermost position.
  • the movable cutting knife 60 is provided with a cutting edge 60a which also extends obliquely across the line of the binding wire W and is adapted to come into cutting relation with the cutting edge 58a of the fixed cutting knife 58 during an early portion of the initial pivoting movement of the prong forming assembly 12. This results in cutting off the end of the binding wire W and leaving a relatively sharp point on the resulting cut wire end.
  • a retractable wire bending die 62 which is slidably supported in a housing 64 which projects laterally outward from the side plate 16 which appears at the bottom in Figure 2 and at the left in Figure 3.
  • the retractable die 62 is urged to its outermost position in which it is shown in Figures 2 and 3 by means of a coil spring 66 which is compressed between the inner end of the die and the end wall of the housing 64.
  • Outward movement of the die 62 under the influence of the spring 66 is limited by an arm 68 ( Figure 2) which pro.- jects through a slot 64a in the housing 64.
  • the outer end of the arm 68 rotatably supports a roller '70 which cooperates with a cam 72 (see also Figures 1 and 3) which extends downwardly along the side of the prong forming assembly 12 and is attached to thetop thereof by means of an overarm portion 72a.
  • This overarm portion 72a is shaped to provide sufficient clearance between the cam '72 and the prong forming assembly 12 to permit the prong forming assembly to move downwardly to its final position as shown in Figure 8 without interference from the adjacent side plate 16.
  • the cam 72 is provided with an inclined surface 72b so that as the cam 72 moves downwardly with the prong forming assembly 12 in the manner previously described, the die 62 will be progressively retracted against the resistance of the spring 66 ( Figure 2).
  • the die 62 is so positioned that its upper surface is just beneath the line of the binding wire W.
  • the retractable die 62 is at its outermost position, with the rear surface 62! of the die extending beneath the binding wire W.
  • the rear surface 62b of the die 62 is undercut so that during the ensuing forward movement of the prong forming assembly 12 to the position shown in Figure 6, the prong P will be bent farther against this undercut surface 6212, resulting in a total bending in excess of 90.
  • the front face of the cutting knife 60 is provided with a vertical notch 6015 which receives and guides the prong P to insure proper bending.
  • the end portion of the binding wire W which projects beyond the finger 620 is engaged by the lower corner of a. prong driving block 74 which is secured at the upper edge of the inner face of the side plate 23.
  • the prong driving block 74 bends the binding wire W about the upper rear corner of the finger 62c through an angle of slightly less than 90, directing the prong P toward the cleat C of the box blankwith the sharpened end of the prong adjacent the outer face of the cleat.
  • the driving block 74 is provided at its lower rear corner with a notch 7412 which receives and guides the binding wire W during this bending movement.
  • the roller '79 rides farther up the inclined surface 72b of the cam 72, further withdrawing retractible die so and removing the finger 620 from beneath the prong P.
  • the forward surface Me of the prong driving block 74 engages the prong P and drives it full length into the cleat C.
  • the sequence of operation of the tool may be briefly summarized as follows: To begin, the box end B is properly positioned relative to the box blank with the binding wire W at one edge of the box end inserted through the notch N in one of the outside cleats C of the box blank. The operator then brings the tool into position, with the hook portions 16a engaged behind the cleat C and with the binding wire W extending between the open cutting blades 53 and 60, as shown in Figure 4. The operator then depresses the control button 54 ( Figure 1) and compressed air enters the rearward end of the cylinder 14, driving the piston 48 forwardly against the resistance of the spring 55.
  • the invention provides a tool which is of relatively simple construction, which is capable of reliably securing wire reinforced box parts to wirebound box blanks in a manner not depending upon the use of loop fasteners. It will thus be appreciated that the aforementioned and other desirable objects have been achieved.
  • Mechanism for attaching to a wirebound box blank provided with reinforcing cleats a box part having a binding wire secured thereto and extending therefrom comprising, a frame, a fixed knife mounted on said frame and having a generally transversely extending cutting edge, a prong forming assembly movably mounted on said frame, motive means for causing movement of said prong forming assembly relative to said frame, a movable knife mounted on said prong forming assembly and having a cutting edge arranged to come into cutting relation with the cutting edge of said fixed knife to out said binding wire during the first portion of the movement of said prong forming assembly, prong bending surfaces on said prong forming assembly for engaging and bending the end portion of said binding wire to form a prong therein and to direct said prong toward a cleat of said box blank during intermediate portions of the movement of said prong forming assembly, and a prong driving surface on said prong forming assembly for engaging said binding wire and driving said prong into said cleat during the final portion of the
  • Mechanism for attaching to a wirebound box blank provided with reinforcing cleats a box part having a binding wire secured thereto and extending therefrom comprising, a frame, a fixed knife mounted on said frame and having a generally transversely extending cutting edge, a prong forming assembly mounted on said frame for movement of its outer end first generally transversely and then generally longitudinally of said frame, motive means for driving said prong forming assembly in such movements, a movable knife mounted on said prong forming assembly and having a cutting edge adapted to come into cutting relation with said fixed knife to out said binding wire and leave a relatively sharp end thereon during a first portion of the transverse movement of said prong forming assembly, a retractable die movably mounted on said frame, prong bending surfaces on said prong forming assembly arranged to engage the end portion of said binding wire and bend the same around said retractable die to form a prong therein and to direct said prong toward a cleat of said box blank during later
  • Mechanism for attaching to a wirebound box blank provided with reinforcing cleats at its longitudinal edges 21 box part having a binding wire secured thereto and extending therefrom said mechanism comprising a frame, a hook on said frame adapted to engage a cleat on said box blank and hold said mechanism and said box blank in proper relative position, a fixed knife mounted on said frame and having an obliquely extending cutting edge, a slide mounted on said frame for movement longitudinally thereof, a prong forming assembly pivotally mounted on said slide and having a crank arm extending therefrom, motive means connected between said frame and said crank arm and adapted to apply to said crank arm a longitudinal force thereto tending both to rotate said prong forming assembly and to move the same longitudinally relative to said frame, cooperating cam surfaces on said prong forming assembly and said frame to limit the rotational movement of said prong forming assembly relative to said frame except in certain longitudinal positions of said slide to cause said prong forming assembly first to rotate relative to said frame, then to move forwardly with said slide along said frame
  • prong driving surface on said prong forming assembly for engaging said binding wire and driving said prong into said cleat during the final forward movement of said prong forming assembly
  • a die retracting cam movable with said prong forming assembly for engaging said retractable die and moving the same first to remove said first corner out of the Way of said prong forming assembly and to place said second corner into cooperative relation with said third prong bending surface and finally to remove said retractable die out of the way of said binding wire prior to completion of the final forward movement of said prong forming assembly.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US464000A 1954-10-22 1954-10-22 Apparatus for attaching wirebound box parts Expired - Lifetime US2832377A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US464000A US2832377A (en) 1954-10-22 1954-10-22 Apparatus for attaching wirebound box parts
FR1137682D FR1137682A (fr) 1954-10-22 1955-10-21 Procédé et dispositif pour fixer des éléments de boîte reliés par fil métallique
US676200A US3025892A (en) 1954-10-22 1957-08-05 Method for attaching wirebound box parts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1137682XA 1954-10-22 1954-10-22
US464000A US2832377A (en) 1954-10-22 1954-10-22 Apparatus for attaching wirebound box parts

Publications (1)

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US2832377A true US2832377A (en) 1958-04-29

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US464000A Expired - Lifetime US2832377A (en) 1954-10-22 1954-10-22 Apparatus for attaching wirebound box parts

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US (1) US2832377A (fr)
FR (1) FR1137682A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4648144A (en) * 1985-06-17 1987-03-10 Richard Rose Bracket for supporting traction weights

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2093139A (en) * 1935-09-12 1937-09-14 Stapling Machines Co Machine for equipping box parts with fastening means
US2115869A (en) * 1935-11-18 1938-05-03 Walter F Newhouse Method of making wirebound boxes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2093139A (en) * 1935-09-12 1937-09-14 Stapling Machines Co Machine for equipping box parts with fastening means
US2115869A (en) * 1935-11-18 1938-05-03 Walter F Newhouse Method of making wirebound boxes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4648144A (en) * 1985-06-17 1987-03-10 Richard Rose Bracket for supporting traction weights

Also Published As

Publication number Publication date
FR1137682A (fr) 1957-06-03

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