US3853051A - Strap positioning apparatus - Google Patents

Strap positioning apparatus Download PDF

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Publication number
US3853051A
US3853051A US00409686A US40968673A US3853051A US 3853051 A US3853051 A US 3853051A US 00409686 A US00409686 A US 00409686A US 40968673 A US40968673 A US 40968673A US 3853051 A US3853051 A US 3853051A
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United States
Prior art keywords
strapping
shuttle
loop
positioning
station
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
US00409686A
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English (en)
Inventor
K Tyler
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.)
Signode Corp
Original Assignee
Signode Corp
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 Signode Corp filed Critical Signode Corp
Priority to US00409686A priority Critical patent/US3853051A/en
Priority to AU72165/74A priority patent/AU485536B2/en
Priority to JP49099849A priority patent/JPS525000B2/ja
Priority to CA209,472A priority patent/CA1004589A/en
Priority to GB4165674A priority patent/GB1454818A/en
Priority to FR7434909A priority patent/FR2248978B1/fr
Priority to DE2450404A priority patent/DE2450404C3/de
Priority to ES431359A priority patent/ES431359A1/es
Application granted granted Critical
Publication of US3853051A publication Critical patent/US3853051A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B13/00—Bundling articles
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/04—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes with means for guiding the binding material around the articles prior to severing from supply
    • B65B13/10—Carriers travelling completely around the articles while holding the free end of material

Definitions

  • the present invention is designed to overcome the above-noted limitations that are attendant upon present day methods of an apparatus for positioning a loop of strapping about an object preparatory to tensioning such loop and, toward this end, the invention contemplates the provision of a semi-automatic apparatus which, when operatively disposed at a strapping station, embodies a strap-gripping shuttle which is movable in orbital fashion-and in a horizontal circular path about the object, to the end that when the free end of a length of strapping emanating from a suitable dispenser is attached by the operator to the shuttle, such end will be carried around the object and returned to the vicinity of the operator during the orbital movement of the shuttle.
  • the operator may then withdraw the free end region of the strap from the shuttle and manipulate it inthe usualmanner of performing strapping operations to establish the aforementioned strap ject. Since the two operators perform their respective duties independently of each other, and in the absence of performing careful and time-consuming height measuring operations, it is not surprising that many improper and off-center strapping operations are performed in the commercial strapping of objects.
  • the invention further provides a means whereby,
  • the strapping material which is pulled from the dispenser and applied to the object in wrap-around fashion is maintained at the desired or proper horizontal strapping level so that uniform strapping of successive objects at the strapping station will take place with no strap misalignment at any portion of the strapping loop.
  • Additional advantageous features of the invention reside in the provision of a means whereby the orbital diameter of the shuttle may be increased or decreased at will so as to accommodate objects of varying width, and whereby the height of the orbital path may be varied to accommodate objects of varying height, or the placement of straps at different levels on the same object.
  • Yet another advantageous feature of the invention resides in the provision of a novel gripper unit or assembly which is associated with the aforementioned shuttle, such assembly facilitating ease of application and removal of the strapping to and from the shuttle by the simple expedient of merely inserting the strapping edgewise into the assembly and withdrawing the same in a similar manner, the assembly however resisting longitudinal'slippage of the strapping during shuttle orbiting.
  • FIG. 1 is a front elevational view of a strap positioning apparatus embodying the principles of the present invention and showing the same operatively disposed at a strapping station preparatory to performance of a strap positioning operation;
  • FIG. 2 is a side elevational view of the structure shown in FIG. 1;
  • FIG. 3 is an enlarged fragmentary bottom elevational view of a limited portion of the structure shown in FIG. 2, the view being taken in the vicinity of the line 3-3 of FIG. 2;
  • FIG. 4 is an enlarged top plan view of the structure shown in FIG. 1;
  • FIG. 5 is an enlarged fragmentary side elevational view, partly in section, of the structure shown in FIG.
  • embodying the present invention is designated in its entirety by the reference numeral and it is shown as being operatively installed at a strapping station S where an object such as a rectangular package P is shown as undergoing strapping.
  • the object may be brought into position at the strapping station S on a series of live rollers 12 associated with a suitable conveyor l4 and the function of the apparatus 10 is to facilitate withdrawal of steel, plastic or other strapping material 16 from a strapping dispenser 18 and the subsequent passage or conduction of the free end of the strapping horizontally about the package in orbital fashion so as to draw the strapping against the object and create a substantially closed loop, after which the operator may cause the free end of the strapping to overlap the feed end thereof preparatory to tensioning the loop and effecting a seal between such ends in the .usual manner of conventional strapping operations.
  • the apparatus is capable of effecting application of the strapping loop to the object at any selected elevation and, in FIG. 1 a completed tensioned and sealed strapping loop 20 is shown as having been applied to the object P in the lower region thereof while a second loop is shown as undergoing completion about the upper region of the article.
  • a strap shuttle 22 which normally assumes a position at one side of the conveyor 14 and which is adapted to receive the free end of the strapping 16 which issues from the dispenser 18.
  • the shuttle 22 has associated therewith strap gripping facilities to which the free end of the strapping is applied and, after the application is made by the operator, the shuttle 22 is caused to orbit around the article in a horizontal circular path, thus carrying the free end of the strapping about the article so as to pull the strapping from the dispenser and wrap the same around the article progressively.
  • a stationary strap guide 24 which is interposed between the dispenser 18 and the shuttle 22 is provided with an eyelet through which the strapping is threaded, the strap guide serving to hold the feed end region of the strapping loop at approximately the same horizontal level as that of the orbiting shuttle 22 to insure accurate horizontal strap application to the article.
  • the shuttle 22 is supported on a rotary carriage 26 the movements of which are effected under the control of a motor M which, preferably but not necessarily, is of the pneumatic type and a foot treadle 28 (FIG. 9), which is positioned alongside theconveyor 14 on the operating side thereof, at a region which is convenient to the operator of the apparatus, enables the operator to control the circular movements of the shuttle 22.
  • the operator may cause the free end of the strapping 16 issuing from the eyelet-supporting strap guide 24 to be secured in the shuttle 22, after which depression of the treadle 28 will cause the shuttle to travel in a circular horizontal path around the article P, the free end region of the strapping thus being returned to the operator after it has completed its revolution and the operator may then remove such free end region from the shuttle and cause it to assume an overlapping relation with respect to the feed end of the strapping so that strap tensioning and sealing operations may be carried out on the overlapping portions by means of a suitable portable strapping tool.
  • the apparatus involves in its general organization a generally I-I-shaped base framework 29 (FIG. 4) including a rear frame member 30, a front member 32 and an intermediate transverse member 34.
  • Each of these members is preferably formed from tubular metal stock which is square in cross section.
  • These three frame members are fixedly secured together by welding and small anglepieces 36 are secured to the opposite ends of the frame members 30 and 32 respectively in slightly downwardly offsetrelationship and constitute, in effect and in the interests of stability, four supporting feet for the base framework.
  • a rectangular tubular column 40 Projecting vertically upwardly from the medial re-' gion of the rear frame member 30 is a rectangular tubular column 40 the upper end of which serves to support a horizontal tubular carriage-supporting beam 42.
  • the effective length of the beam 42 is approximately equal to or is slightly greater than the distance between the base frame members 30 and 32 so that the distal end of the beam overlies or overlaps the centerline of the conveyor 18, and consequently the vertical center of the object P at the strapping station S.
  • the conveyor 18 is of the dual flight type and consists of a pair of spaced apart rollercarrying sections 44 and 46 (FIG. 2), thusenabling the base frame member 32 to assume a longitudinal position whichlies on the centerline of the conveyor 18 when considered as a whole.
  • a motor mount or platform 50 Fixedly secured to the distal end of the beam 42 is a motor mount or platform 50 which serves to support thereon the aforementioned pneumatic motor M, together with an associated gear reduction device 52.
  • the gear redu tion device is provided with an output shaft 54 (see also FIG. 5) which is operatively connected in driving relationship by means of a coupling device 56 to a vertical suspension shaft 58, the lower end of which serves to support a horizontally disposed guide sleeve 60 within which there is slidably disposed the inner end region of a radially extending arm 62.
  • the outer end of the arm 62 has welded or otherwise secured thereto the upper end of a vertically disposed shuttle-supporting arm 64.
  • Both the horizontal radially extending arm 62 andthe vertical shuttle-supporting arm 64 are of rectangular tubular construction and, in combination with the guide sleeve 60, constitute the aforementioned rotary carriage 26.
  • the strap-carrying shuttle 22 is slidably disposed on the arm 64 in the lower regions thereof and means are provided whereby the elevation of such shuttle may be varied to accommodate the application of strapping loops to the object P at selected elevations, all in a manner that will be made clear subsequently.
  • Means are also provided whereby the effective length of the radially extending arm 62 may be varied to accommodate the strapping of articles of varying width, it being desirable that the shuttle 22 shall perform its orbital movement around the package in reasonably close proximity to the latter, in order that only a minimum amount of the strapping 16 will be withdrawn from the dispenser 18 during the strapping of any given object and also in order that the operator will not be burdened with the handling of excess strapping in the vicinity of the strapping station.
  • the gripper assembly 70 is in the form of an upwardly opening cradle having an inside wall 74, a bottom wall 76 and an outside wall 78 in the form of a relatively thick inverted U-shaped anvil having side legs 80 and an upper connecting bridge portion 82 (FIG. 8).
  • a transverse pin 83 extends between the two side legs 80 and serves to pivotally support a rocking gripper carrier 84 on which there is rotatably mounted a gripper wheel 86 having a knurled periphery.
  • a conventional spring plunger 88 is threadedly received in the bridge portion 82 and serves to yieldingly urge the outer end of the gripper carriage 84 downwardly so as to yieldingly bias the carriage in a clockwise direction as viewed in FIG. 6, thus causing the gripper wheel 86 to bear against the inside face of the anvil 78.
  • the gripper wheel 84 willroll tractionally in a counterclockwise direction so as to readily release the strapping from the shuttle.
  • tension will be applied to the strapping so as to withdraw the same from the dispenser l8 and, in the absence of any peripheral torque on the gripper wheel, the same will continue to bind the strapping firmly against the anvil 78.
  • the guide sleeve assembly 72 encompasses the shuttle-supporting arm 64 and is vertically slidable thereon, both the arm and sleeve being generally square in transverse cross section as shown in FIG. 7.
  • One side of the arm 64 is provided with a row of longitudinally spaced holes 90 which are designed for selective cooperation with a spring pressed plunger 92 having a knurled manipulating head 94 and carried by the adjacent side of the encompassing guide sleeve 72.
  • the underneath side of the aforementioned radially extending arm 60 is provided with a series of horizontally and longitudinally spaced holes 96. (FIGS. 3 and 5) therein and the encompassing guide sleeve 60 which serves to slidably support the arm 62 is similar to the guide sleeve 72 except for the fact that the spring pressed plunger 98 which is associated therewith is provided with a pull tab in the form of a ring 100 which is designed for cooperation with an elongated hooked rod or similar tool (not shown) by means of which the operator may reach upwardly and pull such ring to release the arm 62 from the guide sleeve 60 for radial adjustment purposes.
  • the strapping dispenser 18 may be of any conventional reel type and no claim is made herein to any novelty associated with the same.
  • the particular dispenser selected for exemplary purposes herein embodies a dispenser base 102 from which there projects upwardly an H-shaped standard 104 which rotatably supports the spool or reel 106 on which the roll 108 of involutely wound strapping 16 is carried.
  • the dispenser selected for use in connection with the present invention will have associated therewith inherent means for retarding the feed of strapping from the dispenser or for otherwise preventing overrunning of the strapping reel after the pulling force on the strapping has been terminated.
  • One such dispenser which is well adapted for'use in connection with the present invention is shown and described in U.S. Pat. No. 3,337,153, granted on Apr. 2, 1967 and entitled Strapping Dispenser. In the absence of such inherent strapping overrun prevention means, strap retardation may be accomplished by applying a friction brake shoe such as has been disclosed at 110 in FIG. 1
  • the dispenser base 102 projects forwardly of the H- shaped standard 104 and supports a vertically extending post 114 which is formed of square tubularmetal stock and one side of which is provided with a series of vertically spaced holes 116.
  • the aforementioned strap guide 24 is slidable vertically on the post 114, is similar to the aforementioned guide sleeves 60 and 72 and is provided with a spring-pressed plunger having a knurled manipulating head 122, the plunger being designed for cooperation with the holes 116 in the post 114 to the end that the elevation of the strap guide 24 may be varied at will.
  • the strap guide 24 carries an eyelet 124 through which the strapping 16 is adapted to beloosely threaded, such eyelet determining the horizontal level at which the strap loop is applied to the object P during orbital movement of the shuttle 22.
  • the dispenser 18 may be mounted directly on the floor or other foundation surface.
  • the dispenser 18 inasmuch as conveyor means are provided for bringing the articles into position at the strapping station, the dispenser 18 is mounted in a slightly elevated position on a-pair of channel members 126 (FIG. 2) and the dispenser base 102 is capable of being bolted in selected positions on such base to the end that the dispenser may be caused to overlie the front side of the conveyor 14 in order to align the dispenser and strap guide in a longitudinal direction with the outer front surface of articles of varying width at the commencement of and during the strap positioning operation.
  • the aforementioned foot treadle 28 (FIG. 9) by means of which air is supplied to the pneumatic motor M for the purpose of effecting orbiting movement of the shuttle 22 around the object P at the strapping station S is associated with a conventional shut-off valve V to which air is supplied from a suitable source of compressed air through an air line 130 which leads to the valve inlet.
  • the valve outlet is connected directly to the pneumatic motor M through an air line 132 (see also FIG. Normally the valve V remains closed so that no air is supplied to the motor M but, upon depression of the treadle 28, the valve becomes open and air flows from the line 130 to the line 132 and from thence to the motor M.
  • the treadle 28 and valve V, together with a treadle shield 134 are constructed as a unitary assembly which may be positioned on the floor or foundation surface in the vicinity of the strapping station S and at a region-which is convenient to the operator.
  • the operator will initially adjust the position of the dispenser 18 so that the spool 106, strap guide 24 and front side of the object P are in approximate alignment. It may be assumed that at this time the radially extending arm 62 will remain in the same position which it assumed at the conclusion of a previous strapping operation so that the shuttle carrying arm 64 will lie in the vicinity of the space which exists between the post 114 and the front right hand corner of the object P as shown in FIG. 1. It may also be assumed that the elevation of, the shuttle 22 on the post 64 has been properly adjusted to the desired strapping level of the object.
  • the operator With the parts in this position, the operator will withdraw a length of strapping 16 from the dispenser l8 and thread the same through the eyelet 124-and then insert the free end region of such strapping into the cradle-like gripper assembly 70 between the gripper wheel 86 and anvil 78 (FIG. 7), after which he will depress the foot treadle 28 (FIG. 9) so as to open the valve V and cause air to be supplied to the motor M.
  • Such energization of the motor will effect rotation of the carriage 26, thus causing the vertical arm 64 and the shuttle 22 which is supported thereon to orbit in a circular path around the object P.
  • Such orbital movement of the shuttle will draw the strapping 16 through the eyelet 124 and progressively wrap thesame around the object as schematically illustrated in broken lines in FIG. 4, the strap loop moving into intimate contact with the object after the shuttle moves past each corner thereof.
  • the retardation of the strapping which is offered by the dispenser I8 and its associated brake shoe 110 will maintain intimate contact of the strap loop with the object during the entire strap positioning operation.
  • the operator will remove his foot from the treadle 28, thus stopping the motor M and causing the shuttle to assume substantially its initial position, whereupon the operator will then withdraw the free end region of the strapping loop from the gripper assembly by lifting the same vertically as previously described, and bring such free end region into overlapping relationship with respect to the feed end region of the loop in the usual manner of performing manual strapping operations. Thereafter the strapping loop may be tensioned, a seal such as that shown at 17in FIG. 1 applied to the overlapping portions of the loop, and the excess strapping severed from the loop, utilizing conventional strapping equipment (not shown) for such purposes.
  • the strap positioning apparatus 10 of the present invention is readily adaptable to the strapping of objects of varying size and shape. Accordingly, the strapping of a relative short cylindrical article P2 such as has been shown in dotted lines in FIGS. 1, 2 and 4 may be accomplished in substantially the same manner as that described in connection with the rectilinear object P, it being merely necessary to alter the elevation of the strap guide 24 on the post 114, to similarly alter the elevation of the shuttle 22 on the vertical arm 64, and to adjust the position of the dispenser 18 on the channel members 126 so as to align the dispenser reel 106 and eyelet 124 with the object as previously described.
  • the combination set forth in claim 1 wherein said apparatus includes a fixed support disposed above the level of said object, a radial arm haaving its inner end pivoted to the support for swinging movement of the arm about a vertical axis, and a substantially vertically extending arm depending from the outer end of said radial arm, and said shuttle is mounted on said depending arm.
  • said means for effecting orbital movement of the shuttle comprises a motor mounted on said support and operatively connected in driving relationship to the inner end of said radial arm.
  • the combination set forth in claim 4 including, additionally, a strap guide disposed in between the source of strapping and the strapping station and in the horizontal plane of the shuttle and engageable with the strapping for maintaining the feed end region of the strapping loop substantially at the horizontal level of the free end region during orbital movement of the shuttle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
US00409686A 1973-10-25 1973-10-25 Strap positioning apparatus Expired - Lifetime US3853051A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00409686A US3853051A (en) 1973-10-25 1973-10-25 Strap positioning apparatus
AU72165/74A AU485536B2 (en) 1973-10-25 1974-08-09 Strap positioning apparatus
JP49099849A JPS525000B2 (fr) 1973-10-25 1974-08-30
CA209,472A CA1004589A (en) 1973-10-25 1974-09-18 Strap positioning apparatus
GB4165674A GB1454818A (en) 1973-10-25 1974-09-25 Strap positioning apparatus
FR7434909A FR2248978B1 (fr) 1973-10-25 1974-10-17
DE2450404A DE2450404C3 (de) 1973-10-25 1974-10-23 Vorrichtung zum Herumlegen einer Bandschlaufe um einen Gegenstand
ES431359A ES431359A1 (es) 1973-10-25 1974-10-25 Perfeccionamientos en los aparatos flejadores.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00409686A US3853051A (en) 1973-10-25 1973-10-25 Strap positioning apparatus

Publications (1)

Publication Number Publication Date
US3853051A true US3853051A (en) 1974-12-10

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Application Number Title Priority Date Filing Date
US00409686A Expired - Lifetime US3853051A (en) 1973-10-25 1973-10-25 Strap positioning apparatus

Country Status (7)

Country Link
US (1) US3853051A (fr)
JP (1) JPS525000B2 (fr)
CA (1) CA1004589A (fr)
DE (1) DE2450404C3 (fr)
ES (1) ES431359A1 (fr)
FR (1) FR2248978B1 (fr)
GB (1) GB1454818A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005647A (en) * 1976-02-03 1977-02-01 Fmc Corporation Strapping machine
US4067174A (en) * 1976-12-20 1978-01-10 Joseph Goldstein Stretch wrap machine
US4498276A (en) * 1980-06-25 1985-02-12 Encomech Product Development Limited Handling and packaging apparatus
US5765340A (en) * 1996-06-25 1998-06-16 Valmet Corporation Method and apparatus for wrapping a roll
US6141946A (en) * 1999-05-26 2000-11-07 Tekpak Corporation Locating structure of lashing tape reel of binding machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243003C2 (de) * 1982-11-20 1985-06-20 Hoesch Ag, 4600 Dortmund Umreifungsgerät zum Umreifen von Coils
GB2266288B (en) * 1992-04-15 1996-02-07 Tony Sandland Strapping equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563542A (en) * 1951-08-07 Sealing container
US2972843A (en) * 1958-10-30 1961-02-28 Charles Barancik Apparatus for perimetric taping
US3337153A (en) * 1966-03-24 1967-08-22 Signode Corp Strapping dispenser
US3379121A (en) * 1967-02-13 1968-04-23 Signode Corp Method of and apparatus for positioning strapping

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563542A (en) * 1951-08-07 Sealing container
US2972843A (en) * 1958-10-30 1961-02-28 Charles Barancik Apparatus for perimetric taping
US3337153A (en) * 1966-03-24 1967-08-22 Signode Corp Strapping dispenser
US3379121A (en) * 1967-02-13 1968-04-23 Signode Corp Method of and apparatus for positioning strapping

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005647A (en) * 1976-02-03 1977-02-01 Fmc Corporation Strapping machine
US4067174A (en) * 1976-12-20 1978-01-10 Joseph Goldstein Stretch wrap machine
US4498276A (en) * 1980-06-25 1985-02-12 Encomech Product Development Limited Handling and packaging apparatus
US5765340A (en) * 1996-06-25 1998-06-16 Valmet Corporation Method and apparatus for wrapping a roll
US6141946A (en) * 1999-05-26 2000-11-07 Tekpak Corporation Locating structure of lashing tape reel of binding machine

Also Published As

Publication number Publication date
JPS525000B2 (fr) 1977-02-08
DE2450404B2 (de) 1979-05-31
DE2450404A1 (de) 1975-04-30
ES431359A1 (es) 1976-11-01
JPS5072798A (fr) 1975-06-16
GB1454818A (en) 1976-11-03
FR2248978B1 (fr) 1978-11-24
AU7216574A (en) 1976-02-12
CA1004589A (en) 1977-02-01
DE2450404C3 (de) 1980-02-07
FR2248978A1 (fr) 1975-05-23

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