Abstract: An ultrasonic tying tool for installation of a tape about a bundle of elongate articles. The tool includes an ultrasonic horn wherein the welding tip is moveable between a first position for welding of a tape to secure the tensioned loop about the plurality of articles and a second position wherein the welding tip is translated a distance from the first position to effect cutting of the tensioned loop from the stock of tape and to tack weld the loose cut end to the underlying tape of the loop to eliminate any protruding sharp edges. The tool additionally includes a belt drive mechanism for advancing the tape to the jaw assembly and for tensioning the tape following looping of the tape about the outside.

Abstract: A portable strapping apparatus has a semi-automatic fastening mechanism that uses a transmission unit in conjunction with a unidirectional bearing to drive a tensioning wheel. The tensioning wheel is provided with two slots arranged in a mutually perpendicular manner or a plurality of slots, by which the tensioning wheel can achieve a better binding strength. For facilitating the welder to push two strapping bands to positively abut against each other, an elastic presser located on one side of the tensioning wheel is used to gradually release strapping bands before welding. Thus the strapping apparatus according to the invention can positively perform the welding and cutting of strapping bands to effectively bind articles.

Abstract: The present invention relates to a handheld electrical binding apparatus, primarily comprising an improved tensioning unit and a melting and cutting unit that cooperates with a control unit to provide maximum convenience in use. The apparatus of the invention can efficiently stretch binding straps and then melt and cut it, achieving the purpose of securing a package with bands.

Abstract: A device for strapping a plurality of packets with a band includes a frame and a lying conveyor belt supported by the frame for moving the packets forward. A pair of band clamping and guiding jaws move toward and away from each other transversely of the belt. A band supply reel is associated with the jaws. A welding device coacts with the jaws for welding band portions together. Each jaw has a clamping surface that runs transversely relative to the forward direction and coacts with a counter-surface of an intermediate body carried by one of the jaws. A portion of the clamping surface and the counter-surface extend obliquely relative to the forward direction. One of the surfaces has tooth-like protrusions.

Abstract: The present invention relates to a portable electric wrapping apparatus, comprising a motor to drive a main shaft, which moves a tensioning mechanism and a sealing and cutting unit. The tensioning mechanism and the sealing and cutting unit can be designed as individual modules and put together with the main body. The tensioning mechanism may be two frictional wheels each having cutting grooves or a single wheel aiming at the frictional plates to evenly apply pressure to the packaging tape therebetween and strain it for wrapping a package tightly. With the aid of a tension control rod, the tensioning mechanism can move the sealing and cutting unit downward to weld and cut the packaging tape automatically.

Abstract: A method and apparatus automatically process currency documents. A stack of loose bank documents are placed on a feeder having a feeder arm which pushes the documents toward a continuous vacuum belt. The feeder arm is controlled by a lever arm connected to a potentiometer. The vacuum belt pulls documents from the stack, and moves the documents past a vacuum separator head and to a transport conveyor. The vacuum belt and the vacuum separator head are connected to the same vacuum supply. The transport conveyor moves the documents through inspection and sorting stations, and to various stacking units which stack the documents on platens. A strapping tape is curved to bend in a direction transverse to its length, and then a terminal end portion of the strapping tape is pushed through connected channels to direct the terminal end portion around three sides of a stack of the documents.

Abstract: A strap welding tool and method therefor including a first cam member for moving a sealing gripper toward a first support member to engage and retain tensioned strap disposed therebetween, a second cam member for enabling a vibrator motor to vibrate a welding pad, and a third cam member for moving the welding pad toward a second support member to engage and weld overlapping strap portions disposed therebetween. The tool includes a relatively small base plate to reduce loss of strap tension upon removal of the tool from between strap tensioned about small and irregular loads. A column strength of a strap portion engaged by the vibrating welding pad is reduced by deforming or bending the strap portion, and preferably forming a gap between upper and lower strap portions.

Abstract: A type of structural improvement for banding gun, comprising a first handgrip and a second handgrip, the two handgrips are hinged on a hinge pin, between the two handgrips is a first connecting lever, one end of said first connecting lever is connected with the hinge pin, while the other end is connected to the front end of the tension-adjustable spring, the middle part of the first connecting lever is connected to the rear end of a second lever, the front end of the second connecting lever is connected to a band cutting blade, said band cutting blade is slid and accommodated in the front end of the first handgrip, serving to cut the fastening band automatically; so structured to achieve the functions of convenient operation, easy adjustment, etc.

Abstract: A strap welding tool and method therefor including a first cam member for moving a sealing gripper toward a first support member to engage and retain tensioned strap disposed therebetween, a second cam member for enabling a vibrator motor to vibrate a welding pad, and a third cam member for moving they welding pad toward a second support member to engage and weld overlapping strap portions disposed therebetween. The tool includes a relatively small base plate to reduce loss of strap tension upon removal of the tool from between strap tensioned about small and irregular loads. A column strength of a strap portion engaged by the vibrating welding pad is reduced by deforming or bending the strap portion, and preferably forming a gap between upper and lower strap portions.

Abstract: A method for binding bundled objects, in particular pieces of cable is disclosed. A first end of a binding material is used to encircle the bundled objects and is then passed through an opening located on a second end of the binding material. A pulling force is then applied to the binding material thereby tightly securing the bundled objects. The binding material is then bent forming a folded edge and passed through a second opening. Finally, the first end is pressed against a portion of the binding material wrapped around the bundled objects, thus producing a static friction and securing the bundled objects.

Abstract: An apparatus for heat sealing two pieces of plastic strapping together. The apparatus includes a heating element, upper and lower pressure elements, a rotation actuation member and a sealing actuation assembly. The heating element is movable between an engaged heating position --which orients the heat element between the pieces of plastic strapping --and a retracted position. The lower pressure element exerts pressure upon at least the bottom piece of plastic strapping during the heating of same by the heating element, and, in cooperation with the upper pressure element, upon both pieces of plastic strapping again during direct attachment of the melted portions of the plastic strapping after the heating element is relocated to its retracted position. The lower pressure element further releases pressure while facilitating the placement and removal of the pieces of plastic strapping between the upper and lower pressure elements.

Abstract: An apparatus for heat sealing two pieces of plastic strapping together. The apparatus includes a heating element, upper and lower pressure elements, a rotation actuation member and a sealing actuation assembly. The heating element is movable between an engaged heating position--which orients the heat element between the pieces of plastic strapping--and a retracted position. The lower pressure element exerts pressure upon at least the bottom piece of plastic strapping during the heating of same by the heating element, and, in cooperation with the upper pressure element, upon both pieces of plastic strapping again during direct attachment of the melted portions of the plastic strapping after the heating element is relocated to its retracted position.

Abstract: A strapping tool has a timing control circuit incorporated therein which comprises a first pressure-operable valve for time-controlling a plastic strap welding operation, and a second pressure-operable valve for restricting fluid line flow from a source of fluid to an air drive motor of the tool during the tensioning phase of the strapping operation while permitting unrestricted fluid line flow from the source of fluid to the air drive motor of the tool during the welding stage of the strapping operation.

Abstract: Disclosed is a pivotal strap path access cover with an integral feed wheel mechanism for a strapping machine. The strap path access cover is pivotable, without the use of tools, to an open inspection position, such that the feed wheel integral with the access cover is also moved clear of the inspection area, allowing unhampered access to the inspection area for removal of strap debris or correction of various malfunctions.

Abstract: A strapping machine apparatus manipulated through a single actuating lever action, allows the machine strapping chute to be fully opened and exposed for rapid obstruction removal, and/or servicing.

Abstract: A device for tensioning and securing the ends of packing straps which are pressed by a pressure plate against a tensioning wheel. The pressure plate is designed to be lifted off of the tension wheel by the operating lever thereby allowing rotation of the tensioning wheel via an actuator element, thus enabling insertion of the strap ends into the tensioning device. This arrangement makes a special release lever unnecessary.

Abstract: A tensioning and sealing apparatus for strapping an object with a band exhibits a tensioning unit (3) for retaining and tensioning two ends of the band which are to be sealed as well as a sealing unit for connecting the two mutually overlapping ends. The tensioning unit (3) has a motor drive (12) and comprises a tensioning shoe (5) and a drivable tensioning wheel (8) which is fastened on a pivotable rocker (6) and is intended for pressing the band against the tensioning shoe (5) and for gripping the same upon rotation. In order to achieve a high overall efficiency of the tensioning drive, the drive motor (12) of the tensioning wheel (8) is arranged coaxially with the tensioning wheel (8) and is connected to the tensioning wheel (8) via a gear mechanism arranged coaxially with the tensioning wheel (8).

Abstract: A tensioning and sealing apparatus for strapping an object (2) with a plastic band (1) includes a housing (3) having a tensioning unit (4) for retaining two ends (6, 7) of the plastic band (1) which are to be sealed and for tensioning the same and having a sealing unit (5) for connecting the two mutually overlapping ends (6, 7). The tensioning unit (4) has a tensioning shoe (10) and a toothed tensioning wheel (13) which is mounted on a pivotable rocker (11), which can be driven via a tensioning shaft (12), and which is intended for pressing the plastic band (1) against the tensioning shoe (10) and for gripping the same upon rotation. The bearing (15) of the pivotable rocker (11) is arranged on the side of the tensioning shoe (10) and behind the latter in the tensioning direction (14), the rocker axis being located between a bearing surface (16) of the tensioning shoe (10) and a base plate (8).

Abstract: A portable article strapping apparatus including a strap take-up mechanism for stretching the thermoplastic strap when the thermoplastic strap is wound around the article, a welding and cutting mechanism controlled to weld the overlapped part of the thermoplastic strap and to cut off the welded part from the thermoplastic strap, a suspension mechanism controlled to move the welding and cutting mechanism and the strap take-up mechanism between the action (operative) position and the stop (non-operative) position, and a base frame for the positioning of the aforesaid mechanisms.

Abstract: An arch type band guide includes corner elements and straight elements each having the same shape and the same size, wherein the elements are connected in a manner capable of swinging in an arch unit, whereby various sizes of band guide can be easily fabricated depending on the size of articles to be packed.

Abstract: A packing band having a superior weld is disclosed. The band can be made of a stretched thermoplastic resin having a flat cross section. The weld is formed by overlapping ends of the band extending in the lengthwise direction thereof. The weld portion of the band includes a plurality of welded sections separated by at least one non-welded section along the lengthwise direction of the band. The welding of the packing band can be accomplished by overlapping parts of the band in a lengthwise direction thereof; melting discontinuous portions of the parts in a pattern along the length of the band parts of a melted portion, an unmelted portion and a melted portion; and then pressing the parts together so that the melted and unmelted portions of the parts contact each other and form a weld.

Abstract: A tie gun for tying elongated bundles with a polymeric material tape loop, the loop having overlapped tape lengths, the overlapped material being welded with an ultra sonic horn, this horn embodying a horn tip end which with a clamp, and an anvil arrangement holds the loop in such way that a tape stock section just upstream of the weldment is weakened by horn operation disrupting at least some of the molecular orientation in the material so that the stock can be separated from the loop with an upstream directed pulling force applied to the tape stock resulting in a severance that leaves no objectionable protuberance or tab at the weldment. The tie gun also includes a quick release for freeing a tape build up in the gun incident a tape feed jam. A face of the clamp, face surfaces of the anvils and the horn tip end define a funnel envelope to facilitate tape stock feed to tape loop forming jaws on the gun at the outset of a tying cycle.

Abstract: A tool for frictionally welding and binding art overlapped part of thermoplastic strap wound about an object by an vibrator. In order to horizontally vibrate the vibrator, an upper part of flange of the vibrator is abutted to a lower part of needle holder, a lower part of the flange is engaged with an elastic member, and the vibrator is lowered by direct pressure of needle holder, and lifted by the elastic member. Thus, by the leading end of vibrator that is horizontally vibrated, an upper strap is vibrated in the direction of width against a lower strap, while applying a pressure to the overlapped strap part, and the overlapped strap part is frictionally welded.

Abstract: A no-load-run strap release control mechanism including a holder pivotably mounted in the output end of the strap guiding arch of a strapping machine, a movable member, a link pivotably connected between the holder and the movable member, a control switch connected to a timer, a holding-down device controlled by the timer to hold down the welding mechanism of the strapping machine upon a no-load-run of the packing strap, permitting the looped packing strap to extend out into the straight shape and moved out of the slide carrier of the strapping machine after the end of the strapping cycle.

Abstract: An assembly device for binding bunched cables with a plastic fastener having a serrated tension band and a separate locking clasp including a housing for holding a wound roll of the tension band, an exit opening in one end of said housing through which the tension band can be fed, a first guide channel in the housing having an entrance end and an exit end and positioned for feeding the tension band from its roll to the exit opening and a second guide channel located in the housing above the first guide channel for feeding an endless chain of the locking clasps interconnected together by frangible webs to position the locking clasps one at a time in the exit opening so that the tension band can be passed out through the opening in the clasp.

Abstract: A method for protecting luggage in transit. A strip is made of a material which adheres to itself but not to the luggage or to a lock for the luggage. The strip is wrapped around the luggage and the lock, and the ends of the strip are pressed together, causing them to stick to one another and seal the luggage and the lock. If further protection is desired, a strand of wire, rope, cord, string, or the like is tied over the strip used to seal the luggage and lock, and a second strip of the same material wrapped over and around the strand, the first strip, the luggage, and the lock, and used to further seal the luggage and the lock by pressing the ends of the second strip against one another.

Abstract: A hand strapping tool for applying a strap to an article is provided wherein the hand strapping tool comprises a tensioning feedwheel assembly, a vibrating welding assembly, and a pneumatic circuit pneumatically connectable to a source of pressurized fluid for energizing the circuit. The circuit comprises a portion for automatically tensioning the strap around an article and a circuit portion for automatically welding the strap. The circuit also includes a portion for automatically determining tensioning of the strap around the article operatively associated with the circuit portion for automatically tensioning the strap. A circuit portion for automatically delaying welding of the strap is operatively connected to the circuit portion for automatically welding the strap. A circuit portion for automatically determining duration of welding of the strap is operatively associated with the circuit portion for automatically welding the strap.

Abstract: Taping apparatus (27) has a body (3) with a mouth (3a) opening to one side radially of an axis (A). A head (1, 5, 16) having a mouth (3a) radial of the axis (A) is mounted for rotation about the axis (A) on the body (3) and has a gear disposed around the head in meshing engagement with two gears (17) mounted on the body. The gears (17) are both in mesh with a gear (9) rotated by a gear (11) driven by motor (12) thus to rotate the head. A tape reel (28) is carried by chuck (6) rotatably disposed on an axle (8) on the head for rotation about an axis (B) parallel with the axis (A). A counterbalance (4) is mounted on the head (1, 5, 16) opposite the chuck (6) on axle (8) comprising a weight (2) movable towards and away from the axis (A) and a roller (26) urged by a spring (24) against the outermost layer (28a) of the tape on reel (28) thereby detecting the diameter of tape carried by the reel (28) thus to move the weight (2) to a position to substantially counterbalance the reel as it rotates.

Abstract: An assembly device for binding bunched cables with a plastic fastener having a serrated tension band and a separate locking clasp including a housing for holding a wound roll of the tension band, an exit opening in one end of said housing through which the tension band can be fed, a first guide channel in the housing having an entrance end and an exit end and positioned for feeding the tension band from its roll to the exit opening and a second guide channel located in the housing above the first guide channel for feeding an endless chain of the locking clasps interconnected together by frangible webs to position the locking clasps one at a time in the exit opening so that the tension band can be passed out through the opening in the clasp.

Abstract: The invention concerns a process and a device for avoiding interruptions of operation caused by the strapping, on machines for the strapping of packing elements. The process is characterized by a second strapping coil with further strapping, and in that the leader of one of the two strappings is constantly kept at a standby position in the machine from which, upon removal of the other strapping from the strapping guideway, it is automatically fed to the strapping guideway. The device is characterized in that the feed system is preceded by a switch with two strapping guideways for a leader section for each one of the two strappings, with a strapping feed for the alternative introduction of one of the two strapping leaders into the feed system.

Abstract: An automatic package strapping machine having a sliding plate movable in a table between a forward position and a rearward position, a first clamp under the forward position of the sliding plate and movable up and down to press a leading end of a strap inserted under the sliding plate from one side of the sliding plate against the under side thereof, a second clamp under the forward position of the sliding plate and movable up and down to fix a part of the strap extending thereover and the leading end of the strap against the under side of the sliding plate, a pressing device under the forward position of the sliding plate and movable up and down for cutting the strap as the pressing device is moving up relative to the first clamp and for pressing the part of the strap and the leading end thereof against the under side of the sliding plate, a heater for, in a forward position, being held between the part of the strap and the leading end thereof and fusing surfaces of the part of the strap and the leading end

Abstract: A movable strap-engaging member is provided for being connected at a first pivot axis to a vibrator arm for accommodating pivot movement of the vibrator arm about the pivot axis while the movable strap-engaging member is pressing a first length of flexible thermoplastic strap against a second length such strap in an elongate strap-receiving path. The movable strap-engaging member is reciprocated generally transversely of the path to effect a friction-fusion weld of the strap lengths. The movable strap-engaging member has a configuration in which first and second centers of mass are spaced apart on a line that passes through the pivot axis and that is oriented generally perpendicular to the path. The product of the square of the distance along the line between the pivot axis and the mass of the first center of mass is substantially equal to the product of the square of the distance along the line between the pivot axis and the mass of the second center of mass.

Abstract: For connecting two band portions (11a, 11b) by friction welding, one band portion (11a) is pressed against an abutment (20) by a clamping jaw (24), and the other band portion (11b) is pressed against the abutment (20) by another clamping jaw (25). An oscillating jaw (26) is arranged between the clamping jaws for performing reciprocating movements transversely to the band (11) and thus welding the overlapping band portions (11a, 11b) to each other by friction welding. For preventing shear stresses between the oscillating jaw (26) and that clamping jaw (25) which holds the band portion (11b) entrained by the oscillating jaw, this clamping jaw (25) is driven in synchronism with the oscillating jaw (26) and with the same amplitude as the oscillating jaw (26). Facing the clamping jaw (25), there is arranged a smooth support face (23) for allowing sliding movement of the band (11) thereon.

Abstract: A thermoplastic tape is wrapped around a package and is tightened by the disclosed strapping or banding apparatus. The ends of the plastic tape can be welded together by a combined strapping and sealing apparatus or even with a separate sealing apparatus. The strapping apparatus includes a positioning system which ensures that a slotted wheel intended for tightening the plastic tape, once the operating cycle is complete, always assumes an optimum position for the re-insertion of the plastic tape. The use of the strapping apparatus is thereby substantially facilitated, since the operator normally does not have any hands free to adjust the slotted wheel that would otherwise be necessary for tape insertion.

Abstract: An improved joint and method for providing the improved joint structure in joined or fused thermoplastic strap positioned about a package or article is disclosed. The improved joint includes means for increasing the peel separation resistance of overlapping portions of the joint above the peel separation resistance provided by a weldment between the overlapping portions providing for a joint strength that approaches the tensile strength of the strap material or weldment.

Abstract: A method and apparatus are provided for applying a fold-over seal about overlapping lengths of strap. The open seal is positioned with the strap lengths between the legs. Opposing jaws are pivoted about axes against the open seal legs toward the strap lengths to bend the seal legs inwardly while decreasing the distance between the seal and the pivot axes of the jaws. The decrease in the distance between the jaw pivot axes and the seal is limited at a predetermined minimum distance, but the jaws continue to be pivoted to fold the seal legs adjacent the strap lengths. As the jaws approach the fully closed position, the distance between the seal and the jaw pivot axes is increased, and this forces the seal crown and legs closer together as the crimping of the seal is completed.

Abstract: A binding machine, such as a strapping machine, for binding a bundle of newspapers or magazines by applying crossed straps around the bundle. Means are provided for conveying the bundle into and from a strapping zone. Means including a strapping head for each strap are provided for applying a transverse strap and a longitudinal strap around the bundle. A transverse chute is provided, which receives the transverse strap, which guides the transverse strap around the bundle, and which releases the transverse strap when the transverse strap is applied. A longitudinal chute is provided, which receives the longitudinal strap, which guides the longitudinal strap around the bundle, and which releases the longitudinal strap when the longitudinal strap is applied. The transverse chute arches from a given side of the strapping zone to its other side.

Abstract: A tensioning and sealing apparatus, for tensioning and sealing a strap made of a plastic passed around a packaged item, is disclosed. The apparatus includes a clamping device for securing a lower starting section of a plastic strap. The apparatus of the invention further includes a tensioning device for both tensioning the strap and for acting upon an upper section thereof. Upstream from the tensioning device, a friction welding device is provided which preferably includes two welding dies, which are movable relative to one another, for joining mutually overlapping regions of the strap. A cutting member is further provided, preferably arranged between the friction welding device and the tensioning device, for cutting through the upper section of the strap after the strap has been welded.

Abstract: The apparatus has a strip support (12) which can be advanced in relation to gripping members (14) in order to pre-tension strip sections (6,8) against the clamping members. The clamping members feed, tension and weld the strip sections superimposed on the strip support (12). To improve feeding and tensioning and to avoid damage to the strip parts, the gripping members (14) are fixed to a link conveyor (48) which is guided over two guide wheels and from which at least one clamping member projects at the corresponding strip section (6).

Abstract: The present invention relates to a band feeding and tightening apparatus within a strapping machine wherein an external force tending to cause jamming by means of friction and the like in feeding the band pivotably rotates a chute guide constituting part of a band passage, whereby the rear end portion of the chute guide is pushed upwardly and the band which is loosened by means of a length corresponding to the height of the pushed-up portion of the chute guide is retained within the band passage, so that the external force is momentarily released and the band is smoothly fed to the outside of the main body by means of a continuously rotating feed roller and an upper roller without causing jamming and distortion of the band.The feed roller is driven by means of a series motor and the band is fed at a high rate of speed and a low torque, and then restored so as to perform a primary tightening operation, and finally closely tightened around an article to be strapped at a low rate of speed and a high torque.

Abstract: An apparatus is provided for creating an improved configuration of overlapping lengths of flexible thermoplastic strap to accommodate the formation of an improved joint between the strap portions. The apparatus includes first and second strap engaging members respectively defining first and second contoured surfaces for engaging respectively first and second strap lengths to position the joint portions between the strap engaging members in an overlapping relationship along an interface region and to position the trailing portion of each strap length to extend in a plane generally parallel to a reference plane with at least a part of the length of the interface region being non-parallel to the reference plane. In the preferred embodiment, the strap engaging members are each provided with a convex surface and a concave surface and are disposed to align the concave surface of one member generally in registry with the convex surface of the other member.

Abstract: A package strapping machine draws a thermoplastic strap off of a reel, loops the strap around a package, clamps a leading end of the strap, and then tightens the strap around the package with a strap tightening mechanism. A trailing end of the strap is cut underneath the leading end, and then both these ends are automatically welded together. When the strap is tightened, a portion of the strap is fed back towards the reel. The reel is provided with a device for rewinding this portion of the strap. A spiral spring stores energy from the rotation of the reel when the strap is drawn off, and when the strap is fed back the spiral spring causes the reel to rotate so as to rewind the strap. Because the strap is fed back towards the reel faster than the reel can rewind the strap, a loose strap portion accumulates between the reel and the strap tightening mechanism.

Abstract: This is a stretch bundler for use in bundling a variety of loads. A method and apparatus description defines this invention by the use of the novel film gripper mechanism used. The gripper mechanism stretches the width of a film while holding its leading edge. It then releases the film and continues the boundling operation by rotating a film dispenser thereabout and dispensing the film around the load.

Abstract: A thermoplastic tape is wrapped around a package and is tightened by the disclosed strapping or banding apparatus. The ends of the plastic tape can be welded together by a combined strapping and sealing apparatus or even with a separate sealing apparatus. The strapping apparatus includes a positioning system which ensures that a slotted wheel intended for tightening the plastic tape, once the operating cycle is complete, always assumes an optimum position for the re-insertion of the plastic tape. The use of the strapping apparatus is thereby substantially facilitated, since the operator normally does not have any hands free to adjust the slotted wheel that would otherwise be necessary for tape insertion.

Abstract: A bundling machine comprising a bundling material supply roll moving along a circular path and a gripping device for engaging and cutting the bundling material, such gripping device having two beams able to be actuated to clamp and cut the bundling material, and of which one beam is able to be swung in relation to the other beam, such beams being guided by a carrier for performing a movement into and out of the bundling plane and a carriage is able to be moved in direction normal to the direction of motion of the carrier, one such beam being pivotally mounted on the carriage.

Abstract: A band or strap of thermoplastic material which has been placed around a package or article being wrapped is put under tension by means of a tensioning device. The connection apparatus for connecting overlapping ends of the thermoplastic band material is placed within the area of the band or strap under tension and is used to connect these overlapping ends together. The connection apparatus welds the overlapping ends of the strap together using friction by rubbing the lowermost end in a transverse direction with repsect to the longitudinal axis of the band or strap against the uppermost strap end by means of a vibrating or oscillating welding jaw. The welding jaw is driven by an internal battery-powered DC-motor. The connection apparatus is especially well suited for use with a separate tensioning device and can be used in lieu of previously used seal clamps or pliers, independent from a connection with an electric power network or a source of compressed air.

Abstract: The present invention relates to a package strapping machine suitable for tying a package or bundle into a circular shape. A concave base supports the package in the circular shape. A synthetic resin tape is looped around the package and the base, and a leading end of the tape is held against a lower surface of the base by a clamping mechanism. The tape is then tightened, and the leading end of the tape is clamped together with a trailing end of the tape. These tape portions are then heated and pressed to weld them together, and thus the packae is tied in a circular shape. The concave base is then pivoted out from between the package and the tape. As the base pivots, stoppers adjacent the base contact portions of the tape to hold the tape and package in place and allow the base to be removed.

Abstract: A package strapping machine is capable of strapping a package with an adjusted, gentle force by welding ends of a thermoplastic strap. The machine is provided with a strap-elevating member in proximity to a strap-receiving element mounted on a pivotal member. Overlapping ends of a thermoplastic strap are looped around the strap-receiving element and the package, and are then welded under the strap-receiving element. The strap-receiving element is then withdrawn from between an under surface of the package and the welded portion of the strap. The strap-elevating member elevates the welded portion of the strap, slackened due to gentle tightening, from a point below to a point above the height of the strap-receiving element, with the result that the slackened, welded portion of the strap is held above the strap-receiving element as it returns to its original position. The strap thus does not impede the movement of the strap-receiving element.

Abstract: A strapping machine for applying a band around an object includes a pool box in which slackened band is accumulated prior to be fed around an object by a main feed mechanism. The pool box contains a feed device which draws-in the band from a reel, and a passage-forming structure for guiding the band toward the main feed mechanism. The passage-forming structure contains a balance bar and an opposing guide arm. The balance bar is displaced by the band as the band accumulates in the passage. When the balance bar is displaced by a predetermined amount, a sensor shuts off the feed device. Thereafter, the guide arm is moved to a passage-enlarging position, whereupon the balance bar is permitted to return to its original position, enabling the feed device to resume its feeding of the band. The band thus accumulates within the enlarged passage.

Abstract: An automatic binding apparatus produces a loop of tape and tightens the tape around an object that is inserted through the loop of tape. The apparatus has a bed-plate and a guide member which is swivelable into position on and off the bed-plate. Initially, the tape is guided through the guide member to form a small loop of tape. Thereafter the guide member is retracted and the loop of tape is enlarged by feeding more tape to the loop to accommodate large objects. Insertion of the object through the loop actuates a work detection switch and detection of the object produces an output signal which triggers a process whereby the tape is tightly bound around the object, is cut from the tape supply, and the ends of the tape are overlapped and pressure welded to one another. Removal of the bound object changes the state of the work detection switch and results in the repositioning of the guide member over the bed-plate and in the formation of a fresh loop of tape for a next object to be bound.