EP2994389A2

EP2994389A2 - Mobile strapping device having a handle

Info

Publication number: EP2994389A2
Application number: EP14730059.4A
Authority: EP
Inventors: Pascal AMACKER
Original assignee: Orgapack GmbH
Current assignee: Signode Switzerland GmbH
Priority date: 2013-05-05
Filing date: 2014-05-05
Publication date: 2016-03-16
Also published as: WO2014179896A3; CN105358434A; CN105358432B; WO2014179895A3; ES2688580T3; US20160107775A1; CH708329A2; EP2994392A1; TW201502011A; US9994341B2; ES2710533T3; CN105358435B; CH708294A2; US20160107776A1; EP2994392B1; PL2994390T3; WO2014179895A2; WO2014179896A2; CH708328A2; WO2014194434A1

Abstract

The invention relates to a mobile strapping device (1) for wrapping material to be packed with a strap, the device comprising a tensioning unit (6) for applying a strap tension to a loop of a strap, and a welding unit (13) for producing a welded connection, particularly a friction welded or vibration welded connection on two superimposed regions of the strap loop. The device further comprises a rechargeable energy store for storing electrical energy, the electrical energy being used as driving energy for motor-powered driving movements of the strapping device (1), a housing (2) with a front housing region formed as a cover part for the tensioning unit (6) and a rear housing region preferably provided for receiving the energy store, and a handle (3), arranged between the front and the rear housing regions (36, 37), for holding the strapping device. In order to achieve improved ergonomic properties for such a strapping device, according to the invention, as viewed in relation to a plan view onto the strapping device (1) and in relation to a provided longitudinal direction of the course of the strap running through the strapping device (1), the profile of the handle is arranged to be nonparallel to the strap.

Description

Mobile strapping device with a handle

The invention relates to a mobile strapping device for strapping packaged goods with a strapping band, which has a tensioning device for applying a belt tension to a loop of a strapping band, and a welding device for producing a welded connection, in particular a friction welding or vibration welding connection, on two superimposed areas of the loop the strapping band, which comprises means for supplying energy to the strapping device, for example a rechargeable energy store for storing electrical energy, wherein the energy, such as electrical energy, is provided at least inter alia as drive energy for motor drive movements of the strapping device, and a housing with a front cover part for the tensioning device and a rear housing part, which is preferably provided for receiving the energy storage device, and a handle for holding the strapping device which is disposed between the front and the rear housing part.

Such Umreifungsvornchtungen have a clamping device with which a sufficiently large band tension can be applied to a band loop placed around the respective Packgut. By means of preferably a clamping device of the strapping device, the belt loop for the subsequent connection process can then be fixed to the packaged goods. The connection process is carried out in generic Umreifungsvornchtungen means of a vibration welding device, in particular with a friction-welding device. In this case, the belt loop is pressed onto the belt with an oscillatingly moving friction shoe in the region of two ends. The pressure and the heat generated by the oscillating movement of portions of the two band sections melts the usually plastic-containing band locally for a short time. This creates between the two band layers a permanent and at most with great force again to be solved connection between the two band layers.

CONFIRMATION COPY Generic strapping devices are provided for mobile use, in which the devices carried by a user to the respective site and there should not rely on the use of externally supplied supply energy there usually. The energy required for the intended use of such strapping devices for tensioning a strapping band around any packaged goods and for producing a closure is generally provided by previously known strapping devices by an electric accumulator or by compressed air. With this energy, the belt tension introduced by means of the tensioning device onto the belt and a closure on the strapping belt are produced. Generic and thus also according to the invention strapping devices are also intended to connect only weldable plastic bands miteinand he.

In mobile devices, a light weight is of particular importance in order to physically burden the users of the strapping device as little as possible when using the device. Likewise, for ergonomic reasons, the weight of the entire strapping device should be as uniform as possible, in particular in order to avoid concentration of the weight in the head region of the strapping device. Such a concentration leads to unfavorable handling properties of the device. In addition, a possible ergonomic and user-friendly handling of the strapping device is always sought. In particular, the possibility of operating errors and malfunctions should be as low as possible and information about the operating state should be visible to the user of the strapping device.

In order to meet these requirements, it has hitherto been customary to provide mobile strapping devices with a handle on which the strapping device can be worn and, in particular, operated during the strapping processes. In this case, embodiments are common in which the handle is disposed between a front and a rear end of the strapping device, wherein at least one or more functional units of the strapping device are located at the front end, such as a tensioning device for applying a belt tension, a closure device for connecting the belt ends and a separator for separating the strapping from a tape supply. In the area of the other end of the Handle, at the rear end of the strapping device here is a receptacle for a battery. Although this embodiment of mobile strapping devices can already achieve good handling properties and the devices have a balanced weight distribution, they can not be completely satisfied, in particular with regard to ergonomic aspects.

The invention is therefore an object of the invention to provide a generic strapping machine with improved ergonomic properties. This object is achieved according to the invention in a strapping device of the type mentioned above in that, with respect to a plan view of the strapping device and an intended longitudinal direction of the course of the strap by the strapping device, the course of the handle is not parallel to the strap. The handle may have, in particular, a rectilinear or even curved shape in this oblique alignment with the course of the strapping band.

In the context of the invention can be understood as a handle at least the part of the housing of the strapping device, which can be grasped by a user with one hand, thereby holding the strapping device in its intended use and handle. In an alternative to the characterizing part of claim 1 formulation, the present invention can also be seen in that the handle has at least two spaced-apart locations, with respect to a plan view of the strapping device, different distances to the intended target position of a center line of the each have to be processed by the strapping provided Umreifungsbands. In particular, the at least two points should be provided on the handle in such a way that a front of these points has a smaller distance and a rear position has a greater distance from the center line of the strapping band compared to the front position. The target position of the strapping band results in this case usually by the orientation of the tensioning wheel and possibly also by the position of the connecting device with respect to the tensioning wheel. The strapping should in this case usually be arranged such that - again with respect to a Top view of the strapping device - in the region of the tensioning wheel, the center line of the strapping band is parallel to the center line of the circumference of the tensioning wheel. In addition, the strapping band should usually be arranged below the tensioning wheel as well as run through the connecting device with the same band portion.

Generic previously known strapping devices always have a handle, which is aligned parallel to a provided in the region of the strapping band of the strapping. The mobile strapping device is at least temporarily held and handled on this handle during the strapping process. It has been selected in generic strapping a - at least in relation to a plan view - parallel arrangement of the handle selected. A straight course of the handle parallel to the band path represents the shortest connection between the front and the rear housing portion, which is why this prior art training of a handle is obvious and probably has been chosen so far. Such a parallel arrangement of the handle was probably also provided so far, because it could be assumed that the handle can be used as a guide for the orientation of the strapping band to be inserted. As has been shown within the scope of the invention, but has not previously been noted, this is a significant reason for early fatigue of the operator of the mobile strapping device especially in the continuous use of such strapping. The invention provides in this context an improvement in that the handle is non-parallel and aligned at an angle different from 0 ° to the intended band profile of the strapping band, in particular in the region of the clamping device and the closure device. In this case, this relationship between the band course and the course of a longitudinal orientation of the handle with respect to a plan view of the strapping apparatus to understand in which the strapping device is in the processing position in which the strapping device is arranged with the underside of its base plate on a flat surface , By this orientation of the handle, the strapping device can be held during its use for strapping of packaged goods in a manner in which the user here, unlike previously, the wrist of the strapping device holding hand no longer Abwinkein or at least less strong angle must. Rather, the user can hold and operate the mobile strapping device with less force due to the changed nature of the handle. As a result, the user fatigues less and is able to carry out a greater number of strapping with unchanged concentration and attention. This also increases occupational safety and helps prevent accidents at work.

A likewise resulting from the inventive design of the housing advantage is a facilitated possibility for the introduction of the Umreifungsbands in and for removing the Umreifungsbands from the strapping. The, with respect to a plan view of the strapping device and the strapping band in the strapping, preferably resulting oblique course of the handle, results in an offset of the adjoining the handle rear portion of the housing relative to the front housing portion. This makes it possible in a simple manner - again in relation to the top view - between the rear portion of the housing and the strap a distance, in particular a sufficiently large distance to provide. Unlike prior art solutions, the invention thus opens up the possibility of designing the housing of the strapping device in such a way that the rear housing area does not interfere with the handling of the strapping band.

Preferred strapping devices according to the invention can have a front housing area and a rear housing area, which are connected to one another by a central housing area. In particular, the tensioning wheel of the tensioning device can be arranged in the front housing region. Preferably, in the front housing portion, a vibrating element is arranged, which introduces energy with a vibrating motion in the band to produce by local melting of the tape at the two band layers of a closure. The rear housing portion may be provided in particular for receiving a rechargeable battery or another power supply. In other embodiments, other than the above-mentioned components of the mobile strapping device may be arranged in the front and rear housing portion. The front and rear case area should be connected together by the center case area and the have arranged between the front and rear housing portion arranged handle. The connection of the front and rear housing portion may be made by the handle and / or by another portion of the central housing portion. The obliquely aligned to the band profile handle can also be connected only to the front, only with the rear or even with the central housing portion.

The inventive orientation of the handle can also be defined with respect to a plan view of the strapping device by the resulting different distances of the two ends of the longitudinally extending handle from the intended course of the strapping. This course of the strapping band can be represented by a straight line. With respect to a plan view of the strapping device, a straight line of the two ends of the handle may be aligned non-parallel to the straight line of the belt, for example to the centerline of the strapping. As far as one of the ends is connected to the front or rear housing part, it can be assumed as the respective end of the handle, a point of a transition region of the handle in the respective housing portion or its surface, with which the handle is connected. This one or more locations used to define the connecting line should lie in the middle of the width of the handle in a respective width of the handle resulting in a plan view.

If the ends of the handle have different distances to the straight line of the tape, there is thus an at least partially oblique course of the handle, in which the connecting line from a position of a transition region of the handle in the front housing portion with a point of a transition region of the handle in the rear housing portion non-parallel to the line provided by the strapping device resulting straight line. A center line of the handle, at least a portion of the center line, should preferably enclose an acute angle with the intended longitudinal direction of the course of the band through the strapping device. The angle at which the handle is aligned with the straight line of the band can be from an angle range of 3 ° to 89 °, preferably 5 ° to 70 °, and particularly preferably be selected in an angular range of 6 ° to 40 °. Each individual angle value, which is located in the specified range specifications, should be considered as explicitly disclosed. An explicit mention of these values at this is done only to avoid an unnecessarily extensive list of angle values. The angle should in this case be oriented such that it opens towards the rear housing area, ie, that the rear end of the handle preferably has a greater distance from the straight line of the band than the front end of the handle.

Particular advantages can be achieved with preferred embodiments according to the invention, in which at least one display means is arranged on the rear housing region. The indicating means is thus conveniently located behind the handle, with respect to a longitudinal extent of the strapping device. Due to the inclined position of the course of the handle, the display means is also in the use of the mobile strapping device in the field of vision of the user and is not obscured by the user's arm. The user can thus also read during the Umreifungsvorgänge from the display means information, whereby a further improvement in the ergonomics of the strapping device can be achieved. In a preferred further embodiment of the invention, the display means may include a touch screen. The touch screen can extend over a specific area and display different information on that area. It can also display different information alternately on the same surface areas, for example in selectable different display levels. With the touch screen can also be provided that this brings actuatable controls for display, which can be selected by touching the touch screen. These operating elements can also be displayed and selected in different logical operating levels. For this purpose, the touchscreen can be provided with a GUI (Graphical User Interface). In connection with the invention, therefore, a touchscreen can be understood as an input and display device in which, by touching a predeterminable surface area of this device, inputs can be made which either result in inputs for the control of the strapping device and / or but trigger functions of the strapping device. The inputs can be made in particular by touching with a finger.

According to a further aspect of the invention, which also has independent significance, the mobile strapping device, in particular as described in the preamble of claim 1, be provided with a structural unit which the display and control device and the control, at least parts thereof, the strapping device includes. The assembly may preferably be provided with the entire electronics of the strapping device. Since such a unit is preassembled, the assembly of the display and control device and the control in the strapping designed particularly simple and fast. Another significant advantage arises from the fact that in case of a defect, the defective unit can be replaced quickly and with little effort against a new unit. Since the structural unit is preferably arranged in the rear housing area, the mechanism of the strapping device, which is preferably arranged in the front housing area, is not in the way during these maintenance operations either.

Further preferred embodiments of the invention will become apparent from the claims, the description and the drawings.

The invention will be explained in more detail with reference to embodiments shown purely schematically in the figures, in which:

Fig. 1 is a side view of a mobile invention

strapping;

Fig. 2 is a plan view of the strapping apparatus of FIG. 1 with inserted

strapping;

Fig. 3, the strapping device according to the invention with removed

Casing; In other embodiments, the display and operating device may

Operating and display panel of the strapping apparatus of FIGS. 1 and 2; a perspective view of a rear housing portion, provided for mounting in the housing assembly of the operating and display device;

Fig. 6 is a representation according to FIG. 5, with inserted into the housing

Assembly and an intended for use in the housing accumulator. 7 shows a second embodiment of the invention shown in an exploded view of the illustrations of FIGS. 10 and 11;

8 shows a representation of the rear region of the second embodiment of a strapping device according to the invention, as shown in FIGS. 10 and 11;

9 shows an exploded view of essential parts of a display and operating device which is possible for the illustrated embodiments;

10 is a side view of a mobile Umreifungsvornchtung invention; Fig. 11 is a plan view of the Umreifungsgerat of FIG. 10 with inserted

Strapping.

1, 2 and 3, exclusively hand-operated mobile strapping device 1 according to the invention (strapping device) has a housing 2 which surrounds the mechanism of the strapping device and on which a handle 3 for handling the device is formed. The strapping device is further provided with a base plate 4, on the underside of a base 5 is provided for placement on an object to be packaged. On the base plate 4 and on with the Base plate connected carrier of the strapping device not shown in detail, all functional units of the strapping device 1 are attached.

With the strapping device 1, a not shown in Fig. 1 loop of a plastic tape 10, for example, polypropylene (PP) or polyester (PET)), which was previously placed around the article to be packaged, are tensioned by means of a clamping device 6 of the strapping device. The provided as part of the strapping device clamping device 6 has for this purpose as a clamping tool on a tensioning wheel 7, with which the belt 10 can be detected for a clamping operation. In the illustrated embodiment, the tensioning wheel 7 acts together with a rocker 8, which can be pivoted by means of a rocker button 9 from an end position with distance to the tensioning wheel in a second end position about a rocker pivot axis 8a, in which the rocker 8 abuts against the tensioning wheel 7. Also located between the tensioning wheel 7 and the rocker 8 band 10 is in this case against the tensioning wheel 7 at. By rotation of the tensioning wheel 7, it is then possible to press the belt against the tensioning wheel 7 and to generate by rotation of the tensioning wheel 7, a return movement of the belt, through which the belt loop can be provided with a sufficiently high for the packaging purpose tape tension. Subsequently, at one point of the belt loop, on which two layers of the belt 10 lie one above the other, a welding of the two layers takes place by means of the closure device designed as a friction-welding device 13 of the strapping device. The strap loop can thereby be permanently closed. For this purpose, the friction-welding device 13 is provided with a welding shoe 11, which melts the two layers of the strapping band 10 by mechanical pressure on the strapping band and a simultaneous oscillating movement with a predetermined frequency. The plasticized or melted areas of the two tape layers flow into each other and after cooling of the tape 10 during a cooling time then creates a connection between the two tape layers. If necessary, then the belt loop can be separated simultaneously from a supply roll of the belt 10, not shown, by means of a separating device 12 of the strapping device 1. Subsequently, the strapping device 1 can be removed from the packaged goods and the banding produced. The actuation of the clamping device 6, the delivery of the friction-welding device 13 by means of a transfer device of the friction-welding device 13 as well as the use of the friction-welding device per se and the operation of the cutting device carried out using only a common electric motor 14, which provides a drive movement for each of these components , The constructive solution provided for this purpose can correspond to that described in WO2009 / 129634 A1, the disclosure content of which is hereby incorporated by reference. For power supply, an exchangeable accumulator 15, which can be removed in particular for charging, is arranged on the strapping device. A supply of other external auxiliary energy, such as compressed air or other electricity, while not provided in the preferred strapping apparatus according to FIGS. 1-3, but may be provided in other embodiments of the invention.

In the present case, the portable mobile strapping device 1 has a designed as a pressure switch actuator 16 which is provided for starting the engine and is hereinafter referred to as a tension button. For the actuating element 16, three modes can be set by means of a mode switch 17 (FIG. 4) contained in the operating and display field 25 in this exemplary embodiment according to the invention. In the first mode, subsequent actuation of the actuator 16, without requiring further operator action, sequentially and automatically triggers both the tensioner 6 and the friction welder 13. To set the second mode, the switch 17 is switched to a second switching mode. The switching state of the switch 17 is shown with its adjustable modes as well as the switching state of the actuating element 16 in the display panel and displayed. In the second possible mode, only the tensioning device 6 is then released by actuating the tensioning button 16. For separate release of the friction-welding device 13, the tensioning button 16 must be actuated a second time by the operator. The third mode is a kind of semi-automatic, in which the operating element provided as a tensioning button 16 is to be pressed until the clamping force or tension in the belt that can be preselected in stages has been reached. In this mode, it is possible to interrupt the tensioning process by releasing the tension button 16, For example, to attach to the Umreifungsgut under the strapping band edge protectors. By pressing the tension button 16, the clamping process can then be resumed. This third mode can be combined with a separately triggered as well as with an automatically subsequent friction welding process. The power supply is ensured by the trained as a lithium-ion battery accumulator 15.

In the execution of a closure formation, after the band has been laid around the packaged goods as a loop, it is guided in a single-layered manner through the tensioning device 6 in a predetermined manner and through the closure device in two layers. In other embodiments of the invention can also be provided that the strapping between the tensioning wheel and the clamping plate - or another cooperating with the tensioning wheel counterholder - is arranged in two layers for the clamping operation. By engagement of the tensioning device 6 in the guided by the tensioning device 6 upper layer of the tape and by a retraction movement of the tape, the intended tape tension is applied. Thereafter, the welding shoe 11 is lowered in the direction of a counter-holder surface 22 of the base plate 4. Depending on the operating mode of the strapping device 1, this is done automatically as a result of the completed clamping operation or due to a separate triggering of the friction welding operation by pressing the button provided for this purpose. During the Reibschweissvorgangs the band is still clamped between the tensioning wheel 7 and the clamping counter-holder 23 and is held there during the closure formation. The clamping device has during this process section of the Umreifungsbildung the function of a belt clamp or a clamping device which clamps the band between them with two cooperating clamping elements. By lowering the welding shoe 1 1, the two tape layers performed by the closure device are pressed against each other and against the anvil surface 22.

In the closure device, the band is arranged in two layers, wherein the lower band layer bears with its lower band surface against the inclined counter-surface 22 and is pressed against it. With the upper surface, the lower tape ply abuts against the lower surface of the upper tape ply. On the top Surface of the upper band layer presses the welding shoe 1 1. In this position of the tape, the friction-welding device 13 begins with the closure formation by the oscillating movement of the welding shoe 1 1 transverse to the longitudinal course of the tape. As a result, the two mutually adjacent band layers are melted. The materials of the band layers flow into one another and bond cohesively to the final cooling as soon as the oscillating movement of the welding shoe is stopped. Subsequently, the welding shoe 11 is moved away from the counter-holder surface 22 and the tensioning device 6 is released from the belt, whereby the clamping is released and both belt layers are released.

The inventive strapping device is provided with the control and display panel 25, which may also be designed as a touch screen. The touch screen can be a resistive or capacitive touch-sensitive flat screen (display), whereby any other type of touch screen could be used. In the exemplary embodiment, the touchscreen has a substantially rectangular display and control surface 25a. Such touchscreens are offered for example by the company Ad Metro, 1181 Parisien Street, Ottawa, Ontario, Canada K1 B 4W4, which can be obtained in Germany from the company Interelectronix e.K., Ottostrasse 1, 85649 Hofolding.

In other embodiments, the display and control device may also have conventional buttons or other controls, in particular membrane keys and other buttons in which the position of the key is fixed and fixed and not only by touch but (also) by pressure, a mechanical change of the switching state this button is effected. Information about the state of the strapping device may also be made in such alternative embodiments with conventional display devices without controls integrated into the display surface, such as LCD or TFT displays.

Although a rectangular touch screen is shown in the illustrations of FIG. 4, in which three operating elements 17-19 are formed in the region of the lower end side, the same representation could also have an LCD display at its lower end Front page outside the display area adjacent three trained as buttons controls 17-19 play. Of course, these keys could also be arranged at a different location, in particular at a different location adjacent to the display area. Likewise, as in the case of a touch screen, a number of control elements 17-19 other than the number shown may also be provided with operating functions deviating therefrom. In this case, the LCD display is compared to the illustrated touchscreen to the partial area 25a ^' smaller, in which there are locally fixed keys. Furthermore, a touchscreen could be provided which, in addition to pure information-conveying display elements, also displays all operating elements 17-19 on the surface of the touchscreen serving as a display element as well as a touch surface and detects an actuation of these operating elements for the control of the strapping device. The following explanations are thus valid for both the actual embodiment shown and for an embodiment with an LCD display area or another display panel without operating function, which then separate controls are assigned.

Different information and touch-sensitive actuating or input elements can be displayed alternately or simultaneously on the display and control surface 25a. Different display and input levels can be provided which can be selected and deselected and in which different information as well as actuating and input elements can be displayed. In particular, the displayed items may inform about the condition and settings of the strapper and its components. As actuators, in particular a plurality of touch-trigger buttons 17-19 can be displayed. Use these buttons to pre-select and adjust the various Manual (MAN), Semi-automatic (SEM) and Auto (AUTO) modes of the strapping tool, as well as strapping parameters. Adjustable and displayed parameters can be, for example, the clamping force, the welding time and the cooling time. The setting can be made by adding or subtracting predetermined steps of the respective value by operating the plus or minus key 18, 19 and by confirming the value to be set by means of the mode switch 17 functioning as a confirmation key in this case. By pressing the mode switch 17 is the set value stored in the controller for use in the subsequent strapping process. Likewise, the type of tape used may be displayed and selected by selection from a given list of tape types 26. Furthermore, current operating conditions can be displayed, for example, the discharge state 27 of the battery and during the clamping operation by a progress bar 28, the proportion of the already achieved clamping force, based on the set to be reached clamping force.

The preset values are displayed by the strapping device on the display panel 32 and used in the strapping operations until the parameter values are changed again. The strapping processes themselves are triggered or started by the tensioning button 16, which is arranged ergonomically in the region of the front end of the handle of the strapping device 1, as a further actuating element. In order to insert the tape into the clamping device, a rocker button 20 is disposed below the tension button 16, which may be formed, for example and preferably as a push button. By pressing the rocker button 20, the rocker 8 is opened, i. the rocker is pivoted away with its clamping plate 23 from the tensioning wheel 7, so that there is a gap between the clamping plate 23 and the tensioning wheel 7. As long as the rocker button 20 is pressed, the clamping plate 23 of the rocker is arranged at a distance from the tensioning wheel 7, so that the band between the clamping plate 23 and the tensioning wheel 7 can be inserted into the clamping device. As soon as the rocker button 20 is released, the rocker 8 pivots with the clamping plate 23 in the direction of the tensioning wheel 7, as a result of which the tensioning plate 23 rests against the lower side of the band and the upper side of the band bears against the tensioning wheel 7.

If the strapping device 1 is held on the handle 3, the tensioning button 16 can be actuated with the thumb of the hand with which the handle 3 is held. The arranged on the underside of the handle 3 rocker button 20 can be operated in this case in an ergonomically favorable manner with the index finger, without requiring a grasping is required. In other embodiments of the invention, the rocker button 20 may also be arranged on the upper side of the strapping device, in particular in the immediate vicinity of the tensioning button 16, so that with the thumb of the hand grasping the handle 3 both the tensioning button 16 and the Rocker button 20 is actuated. The tensioning button 16 can in this case be responsible for triggering the tensioning as well as the welding operation, wherein it can be provided by setting the corresponding mode that a single press of the tensioning button triggers both the tensioning and the subsequent connecting operation. By selecting a different operating mode, only the clamping operation can be started by a single press of the tension button. To carry out the connection or the welding process then pressing the button again is required.

In an alternative embodiment, the strapping device, in particular in the region of the handle, also (only) a combination button may be provided which has two operating areas, one for the clamping and welding and one for the rocker actuation. Again, the clamping and welding process can be triggered either by only one operation or by separate separate actuation operations of the one operating range. The clamping operation can be triggered by a single operation and the connection process by a subsequent operation subsequent to the clamping operation, in particular by a double-click. The other operating area is provided for the rocker actuation. Such a combination key may, for example, be located at least approximately at the location of the strapping apparatus on which the tensioning key 16 is arranged in FIGS. 1 and 2.

In a further alternative embodiment, in particular in the region of the handle 3, a separate key can be provided for each of the three functions. In this case, only a single actuation of the respective button may be required to trigger the respective operation.

In all embodiments, it is preferred that the keys associated with the clamping and welding operations initiate electrical switching operations which are fed to the controller. The actuation of the rocker button, however, can preferably be forwarded electromechanically to the rocker and trigger a pivoting operation of the rocker. Likewise, one or more additional drive elements can be provided, which trigger the pivoting operation of the rocker and perform and are electrically controlled. All embodiments of the described operating concepts can also have independent significance and represent independent inventions. As shown in particular in FIGS. 5 to 11, below the display and operating device 43 disposed in the longitudinal direction of the strapping apparatus behind the handle 3 and at the rear housing area 37, in particular directly below the display and control panel 25 and above the battery 15, the electronics for the control of the strapping device may be arranged, which may be formed for example in the form of an electronic circuit board. In the embodiment, power electronics for the electric motor is added to the electronic board, the board can therefore also be referred to as control / Leistungsprint 44. As can be seen in the illustrations, this electronic board is in this inventive embodiment thus between the receptacle for the battery 15 and the display and control device 43. Is the battery 15, as it is provided when using the strapping device, in its recording on Housing used, is the control / Leistungsprint 44 between the display and control device 43 and the battery 15. Due to the location near the display and control device 43 in the controller and the accumulator 15 fewer cables are needed compared to previously known solutions. As far as cables are needed or at least provided, also shorter cables for wiring the strapping device are needed. In addition, this measure makes assembly easier and faster.

Likewise, according to the preferred embodiment of the invention shown in FIGS. 5 to 11, the display and operating device can also be designed as a modular assembly 29 or structural unit together with the controller or the electronic board provided therefor, which facilitates the assembly and any necessary Repair considerably simplified. The one electronic board or the one control / Leistungsprint 44 may also optionally comprise a power electronics of preferably only one electric motor in a preferred embodiment of the invention. This assembly 29 may also be formed in several parts and the rear housing portion 37th be used in a designated receptacle 46 and be releasably secured by means of fewer screws, such as four screws 47 on the housing. Of course, other releasable fasteners may be provided as screws 47, such as clip elements. In the Asführungsbeispiel the Steuerungs- / Leistungsprint 44 by means of separate screws 48 It can also be provided that the board or the print 44 is inserted only in the receptacle 46 and by the lid 39 and arranged on the cover 39 subassembly in this position without further Fastener is fixed. In Fig. 9, the subassembly of the lid 39 is shown in an exploded view, which is part of the display and control device 43. As can be seen here, this subassembly has a foil 50 of the display which covers a touch glass 51. The touch glass 51 and the film 50 are inserted from above into a recess of the frame-like cover 39. An LCD display 52 - or a display based on a technology other than LCD - is inserted from below into the lid 39. As seen below, a holder 53 and a film 54 and a display print 55. At the latter, a cover is screwed from below. The display print 55 also has on its underside a substantially vertical to the bottom aligned tab 56 which is provided as a contact element for generating an electrical contact with the control / Leistungselektronikprint 44. The tab 56 is plugged into the control / power electronics board 44 (see also Fig. 7) and serves in particular for signal transmission between the display and control device 43 and the control / Leistungselektronikprint 44th

An electrical contact to the power supply and data transfer between the strapping device and the assembly 29 may be provided by means of one or more electrical connectors 30, 31, 32. In the embodiment, four detachable connectors 30, 31, 32 are available for this purpose, in other embodiments of the invention may also be provided a deviating number of electrical connectors. For this purpose, the housing in the region of the board preferably has plugs 30b, 31b, 32b which can be detachably connected to corresponding plug counterparts 30a, 31a, 32a of the board of the control / power unit 44. The board or the assembly 29 can with their plugs 30 b, 31 b, 32 b are pushed onto the housing mating connector mating parts 30 a, 32 a, 32 a. Here, one of the connectors 30 is used to power the motor, the second connector 32 is used to transmit signals generated by sensors of the engine, in particular Hall sensors. The third connector 31 is provided for signal transmission of signals from sensors which are located in the region of the mechanism of the strapping device, in particular in the region of the clamping device and / or the connecting device and their respective drive trains. A fourth connector may be used to transmit signals of the keys triggering certain functions, in particular the cocking button 16 and the rocker button 20. In other preferred embodiments, signals of different components of the strapping device may be routed via one or more connectors. Immediately below the unit 29, a receptacle 59 for the battery 15 is provided on the housing, in which the battery 15 can be inserted from behind in the housing and securely arranged by means of a detachable snap connection. Within the recess 59 further electrical contacts of the strapping device for the connection of the accumulator are provided, for example, a contact plate.

Of the in the representation of Fig. 5 - 1 1 not discernible in detail contact plate go several cables 60 to the bottom of the control / Leistungsprint. As a result, the electronics of the control / Leistungselektronikprints 44 is supplied by the battery 15 with power and provided power for the motor 14 for processing by the power electronics, which passes through the connector 30 to the motor 14. The cables 60 may form a loop and be fixed in position by means of a clamping piece 61 screwed to the underside of the receptacle. The housing 2 of the strapping apparatus 1 shown in the figures have the front area and the rear area, between which a middle housing area 38 with a handle 3 is located. By the handle 3 are in the two preferred embodiment of the invention shown here, the front portion and the rear portion 36, 37 of the housing 2 with each other connected. In this and other embodiments, the housing may have two interconnected shells and preferably consist of such plastic shells. The dividing line or parting plane at which the two shell halves are joined to one another and connected to one another by suitable fastening means, such as screws, can preferably extend over the entire length of the strapping apparatus and also extend through the handle 3 over its entire length.

The front portion 36 of the housing 2 surrounds the clamping, Reibschweiss- and separating device such that only those mechanical components of the strapping device are released or not covered by the housing 2, which should have access to a user, in particular those parts, the Strapping process are provided for engagement in the two band layers. On one side of the front portion 36 of the housing 2, a lid 63 releasably closed opening is provided, which can be used for maintenance purposes, for example, to replace wear parts.

The rear portion 37 of the housing 2 is at least in the embodiments of FIGS. 1 and 10 designed cuboid in a very highly schematized view. The handle 3 joins with its rear end to the upper side 37 a of the rear portion 37 of the housing 2 or passes into this. The term "upper side" 37a is to be understood as the side which can be seen on a horizontal plane, in a plan view, in the case of an arrangement of the strapping apparatus with its base plate 4. At a rear side of the rear housing region, the opening or receptacle 59 is provided in the housing Cross section corresponds at least approximately to the cross section of an accumulator 15.

The handle 3, which is arranged essentially in the region of the upper side of the strapping device, merges with its front end 3a into the front region of the housing, in particular into the upper side of the front housing region 36. Seen in the opposite viewing direction, the front housing region 36 thus goes into the handgrip 3 above. The rear end 3b of the handle 3 merges into the rear area 37 of the housing 2, in particular into the upper side 37a of the rear housing area 37. In the preferred embodiment, one half each belongs the handle 3 on the one hand and the other half of the handle to the other housing shell. The respective half of the handle is integrally connected to the respective housing shell or integrated into it. The strapping apparatus 1 has, in particular in the region of the tensioning device 6 and the closure or friction welding device 13 per se known tape guide means, which results in an at least substantially predetermined course of the strapping 10 in the strapping device, in particular the band section between the tensioning device and the welding device 13 , This course, in particular a center line 10a of an upper side of the band 10 which is formed as a straight line, at least in plan view, is subsequently provided as a reference line and definition aid for the alignment of the handle 3. In this plan view, this band alignment runs along a straight line. If the transition regions of the handle 3 are connected to each other in the front housing portion 36 and in the rear housing portion 37 by a straight line 40, this straight line 40 is not parallel to the center line 10a of the band profile in the strapping 1. As transition areas, the points can be considered In each case, a change in the course of the surfaces of the upper sides of the front and rear housing portion 36, 37 takes place, in order to pass here in each case in the handle. Alternatively, as (front and rear) transition areas and the ends of the handle can be understood, to which it is possible to fully or partially surround the handle with the operating hand. These transitions can be continuous or discontinuous. The two locations 41, 42 of the transition areas used to form the imaginary line 40 may be in the middle of the respective width of the handle 3 with respect to a plan view. With respect to the straight line 10a resulting from the course of the strip, the two points 41, 42 have different distances 62, 62 with respect to the straight line 10a; they are thus offset from one another in the direction of the strip path. With respect to a plan view of the strapping apparatus and with respect to the resulting in the arrangement of the band band in the strapping device, the straight lines 10a, 40 are non-parallel to each other and include a different angle of 0 ° φ. The angle φ is further characterized in that the straight line 40 defining it with respect to the plan view and with respect to the belt 10 and its center line 10a, on the other side 31 of the center line 10a, as the introduction side 32, from the the tape is inserted into the strapping machine. The handle 3 is thus located with respect to the band 10 on the other side 31 as the introduction side 32. In the preferred embodiment of the invention in the illustration of Fig. 2 and 1 1 increases the distance of the line 40 to the center line of the belt in Course of the handle 3 from the front housing portion 36 to the rear housing portion 37th

In preferred embodiments of the invention, this angle φ may in particular be selected from a range of 3 ° to 89 °, more preferably from a range of 5 ° to 70 ° and more preferably from a range of 7 ° to 35 °. It is hereby intended to explicitly disclose each individual angle value from the aforementioned angular ranges. An explicit enumeration of each individual angle value is only made for lack of practicability. As can be seen in particular in the lower plan view of Fig. 1, results from the oblique handle offset the rear housing portion 37 from the strapping 10 away, so that the rear housing portion 37 does not interfere with the insertion of the strapping in the strapping. As a result, the preparation time for the implementation of strapping can be shortened and the reliability of strapping devices can be improved.

FIGS. 10 and 11 show the second exemplary embodiment of a strapping apparatus according to the invention and its housing, which differs from the previously discussed inventive embodiment, in particular with regard to the design of the handle. Unlike the embodiment of FIG. 1, the handle 3 is not curved here, but has two substantially rectilinear and at an obtuse angle abutting portions 64, 65 of the handle 3. The front of the two sections 64 includes the front portion 41 of the transition of the handle to the front portion 36 of the housing, while arranged in the longitudinal direction of the handle behind the rear portion 65 of the handle, the rear point 42 of the transition of the handle 3 in the rear portion 37 of Housing includes. The two substantially rectilinear portions of the handle include in the embodiment an angle of about 160 °. In this case, the alignment of the two sections 64, 65 is made such that its center line 64a corresponding to the longitudinal extent of the front section of the handle encloses the angle φ with the center line 10a of the band, at least in sections relative to the strip with respect to a plan view is tilted. The longitudinal course of the rear portion 65 itself, ie in particular its center line 65a, however, is aligned substantially parallel to the handle portion opposite the belt portion of the strap. This configuration of the handle 3 results in an ergonomically favorable increased distance between the holding hand holding the strapping device and the strapping band.

LIST OF REFERENCE NUMBERS

Strapping device 32 plug connection

Housing 32a connector counterpart

Handle 32b plug

a front end 36 front area

b rear end 37 rear area

Base plate 37a top

Base 38 middle range

Clamping device 39 cover

Tensioning wheel 40 Straight

Rocker 41 place

a rocker pivot axis 42 position

rocker button

0 Band 43 Display and control unit 0a Center line 44 Control 1 Welding shoe / Power electronics print2 Separator 45

3 Reibschweisseinnchtung 46 Recording

4 engine 47 screw

5 accumulator 48 screw

6 actuator

7 mode switch 50 slide

2 counter surface 51 touch glass

3 tension adjusters

52 LCD display

5 control and display field

53 bracket

9 assembly

54 foil

0 plug connection

55 Display Print

0a plug counterpart

56 tab

0b plug

59 recording

1 plug connection

60 cables

1a connector counterpart

61 clamping piece

1 b plug Distance 64 front section Distance 65 rear section

Claims

claims

Mobile Umreifungsvornchtung for strapping of packaged goods with a

Strapping band, the

a tensioning device for applying a belt tension on a loop of a strapping band, and

a welding device for producing a welded connection,

in particular a Reibschweiß- or vibration welding, on two superimposed areas of the loop of the strap, which has means for supplying energy, in particular a rechargeable

Energy storage for storing electrical energy, the energy thus provided is provided in particular as drive energy for motor drive movements of Umreifungsvornchtung, and a housing with a cover designed as at least for the clamping device front housing portion and a rear housing portion, preferably for receiving means for Power supply is provided, and a handle for holding the Umreifungsvornchtung, which is arranged between the front and the rear housing portion,

characterized in that

with respect to a plan view of the Umreifungsvornchtung and with respect to an intended longitudinal direction of the course of the tape through the

Umreifungsvornchtung, at least a portion of the course of the handle is made not parallel to the tape.

Mobile Umreifungsvornchtung according to claim 1, characterized in that with respect to a plan view of the Umreifungsvornchtung a

Connecting straight from a position of a transition region of the handle in the front housing portion with a position of a transition region of the handle in the rear housing portion non-parallel to one by the intended band path through the strapping device.

3. Mobile strapping device according to claim 1, characterized in that, in a plan view of the strapping device, a center line of the handle encloses an acute angle with the intended longitudinal direction of the course of the strap through the strapping device.

4. Mobile strapping device according to claim 1, characterized in that the angle from an angle range of 3 ° to 89 °, preferably 7 ° to 70 ° and particularly preferably 10 ° to 40 °.

5. Mobile strapping device according to one or more of the preceding claims, characterized in that with respect to a plan view of the strapping device at a front end of the handle one or more functional units for strip processing during strapping, namely at least one tensioning device and the rear end of the handle a Receiving for a power supply, in particular for an accumulator, are arranged, wherein the receptacle is offset relative to the tensioning wheel with respect to a distance from the intended band during the strapping process.

6. Mobile strapping device according to one or more of the preceding claims, characterized in that at least display means, preferably an operating and display panel of the strapping device, is arranged in the region of the rear housing part.

7. Mobile strapping device according to claim 6, characterized in that the control and display panel on a in a plan view of the

Strapping device apparent surface of the strapping device is arranged.

8. Mobile strapping device according to claim 6 or 7, characterized

in that at the rear housing area the at least one display means, such as a flat screen, as well as locally separate fixed control elements are arranged. Strapping device according to one of claims 6 to 8, characterized

in that the operating and display panel is designed as a touchscreen.

Strapping device according to one or more of the preceding

Claims, characterized in that the control and display panel is provided with a graphical user interface control panel is displayed on both selectable by touch controls and display element

Mobile strapping device for strapping packaged goods with a

Strapping band, the

a closure device for producing a closure, in particular a Reibschweiß- or vibration welding, on two superimposed areas of the loop of the strapping, the one

Energy supply, in particular a rechargeable energy storage device for storing electrical energy, has, wherein the energy of the

Power supply is provided as drive energy for motor drive movements of the strapping device, and

a housing having a front cover part for the tensioning device and a rear housing part, which is preferably provided for receiving the energy store, and a handle for holding the strapping device between the front and the rear

Housing part is angeordent,

characterized in that

a display means for displaying operation information of

Strapping device on the rear housing part of the housing

Strapping device is arranged.

Mobile strapping device according to claim 11, characterized in that the display means with respect to a plan view of the in a horizontal strapping device optically perceptible in plan view.

13. Mobile strapping device according to claim 11, characterized in that the display means has a touch screen. 14. Mobile strapping device, in particular according to at least one of

preceding claims, characterized by a structural unit, comprising the display and control device and the controller, at least parts thereof, the strapping device.

15. Mobile strapping device, in particular according to the preamble

Claim 1, characterized by a means for actuating a rocker of

Clamping device, which is designed as a button.

16. Mobile strapping device according to claim 8, characterized in that the button provided for actuating the rocker button is arranged on an upper side of the strapping device.