DE102023107078A1 - Portable rescue scissors or portable rescue combination device - Google Patents

Abstract

The invention relates to portable rescue scissors with a cutting function or a portable rescue combination device with a cutting and spreading function. This device comprises a scissor tool (3) with a first and a second scissor blade (6, 7), the first and second scissor blades (6, 7) being pivotable relative to a scissor body (8). The first and second scissor blades (6, 7) span a common cutting plane (9), with the first and second scissor blades (6, 7) overlapping one another in a projection onto the cutting plane (9) in a closed position of the scissor tool (3). or cross over. At least one control element that can be operated manually by an operator is provided for initiating and terminating closing and opening movements of the scissor tool (3). At least one mechanical and/or graphic display (13) is also formed on the portable device. This at least one display (13) is designed at least to signal (i) a maximum closed position of the scissor tool (3) or at least to signal (ii) a position of the scissor tool (3) that cuts through a material to be cut.

Description

The invention relates to a portable rescue scissors with a cutting function or a portable rescue combination device with a cutting and spreading function, as specified in the claims.

The WO2018/161103A1 , which goes back to the applicant, describes a hydraulic rescue device in the form of a rescue cylinder for manual operation by a rescue person. The rescue device comprises a hydraulic cylinder with a cylinder tube and at least one piston rod that is adjustable relative to the cylinder tube, at least one first support surface formed on the cylinder tube for load-transmitting support of the rescue device on first object surfaces that can be freely selected by a rescue person, at least one second support surface formed on the at least one piston rod for load-transmitting Supporting the rescue device on second object surfaces that can be freely selected by a rescue person, and at least one manually operated control valve. At least one marking that can be read by a rescue person is formed on the lateral surface of the at least one piston rod, which at least one marking is provided at least to signal a remaining stroke that is still available or an adjustment stroke that has been completed by the at least one piston rod relative to the cylinder barrel. This allows the user to see the maximum available stroke path of the piston rod relative to the cylinder tube. This can be useful for spreading or lifting work with such a rescue cylinder.

The WO2011/100655A2 describes a portable, hydraulic rescue device with cutting and spreading functions for rescue operations. According to the embodiment 4 This rescue device has clearly visible display points or markings. These markings can be designed as infrared markings. Such markings may be located on the tool tips or on the ends of actuators for an adjustable handle. These markings can also be designed as operating mode indicators for opening (O), neutral (N) or closing (C) of the tool. These infrared markings can be seen by operators wearing night vision goggles even in low light conditions, especially at night. These measures enable the operator to recognize orientations of the device in three-dimensional space and to recognize operating sections of the device, even in the dark.

In practice it has been shown that during rescue work on a vehicle it can happen that the user has little or no direct visual contact with the scissor blades or knife tips. This occurs, for example, when the scissor blades are immersed in a vehicle body profile, a vehicle seat or a dashboard. This makes the rescue operation more difficult.

The object of the present invention was to overcome the disadvantages of the prior art and to provide improved rescue scissors or an improved rescue combination device with a cutting and spreading function. In particular, the generic rescue device should be as easy to use as possible even for relatively inexperienced or inexperienced users.

This task is achieved by a portable rescue scissors and a portable rescue combination device according to claim 1. Such rescue scissors have at least a cutting function or such a rescue combination device is equipped with at least a cutting and spreading function. These devices are intended to rescue people who have had an accident or are otherwise trapped. The devices according to the invention can, for example, also be used by police commandos to gain access to locked rooms or other objects. In the following, such claimed portable rescue scissors and such claimed portable rescue combination devices are referred to briefly as “portable device” or just as “device”.

The device according to the invention comprises a scissor tool with a first and a second scissor knife, wherein the first and the second scissor knife are pivotally mounted relative to a scissor body, in particular are articulated relative to the scissor body or base body of the device. The first and second scissor blades span a separating or cutting plane, with the first and second scissor blades overlapping or crossing one another in a closed position of the scissor tool in projection onto the cutting plane. This device also has at least one control element that can be manually operated by an operator for the manually controlled initiation and termination of closing and opening movements of the scissor tool. Furthermore, at least one mechanical and/or graphic display is formed on this device. This at least one display is designed at least to signal a maximally closed position of the scissor tool and/or at least to signal a position of the scissor tool that cuts through or separates a material to be cut.

The maximum closed position of the scissor tool can be defined by a kinematically or mechanically limited closed position, in particular by a stop-limited closed position of the scissor tool. In the position of the scissor tool that cuts through or separates a material to be cut, the effective cutting edges of the scissor blades lie relative to one another in such a way that a material to be cut, for example a car body profile, is completely severed by the scissor blades within their cutting length.

The device according to the invention supports the implementation of operations by rescue organizations or emergency commandos that are as coordinated as possible. In particular, such operations can be carried out as quickly, goal-oriented and error-avoiding as possible using the device according to the invention. These advantages are particularly evident in scissor tools, which can be designed with or without an expanding function. Especially when using the scissor tool, it can happen that the maximum possible closing position or the cutting position of the scissor tool is not immediately visible to the operator.

This is especially true when the object to be separated or cut lies between the scissor blades and completely or partially covers the scissor blades or their cutting edges.

The measures according to the invention ensure that a user can better control the cutting process and carry it out in a targeted manner, even if he does not have direct visual contact with the knife tips, for example because the cutting knives are immersed in a cutting object such as a body profile, a vehicle seat or a dashboard . In particular, the design according to the invention can prevent the user from accidentally terminating the cutting process too early. This means that an incomplete cut, which in the worst case scenario has to be carried out again, can be avoided.

Relatively inexperienced emergency services in particular can safely assume that the cut has been carried out correctly and completely thanks to the invention described. But even experienced emergency services can concentrate more easily on other aspects and activities in stressful or stressful operations because the solution according to the invention provides reliable and precise feedback about the complete cutting.

In contrast to hydraulic pressure displays or electrical displays with pressure sensors connected to them, in which a maximum pressure is displayed, the solution according to the invention has a significant advantage. If, with the maximum pressure display, the scissor tool reaches its technical limits shortly before complete cutting, for example because there is a non-separable structure, this maximum pressure display will suggest to the user that the cut has been completed, which, however, does not correspond to the facts. As a result, follow-up work to be carried out is not possible or such follow-up work will still be attempted due to the incorrect information, but will fail. This means that important time is wasted with a pressure or maximum pressure display.

The solution according to the invention, on the other hand, will clearly and unambiguously inform the user that the planned cut was not complete or not successful, or was successful. This means the user can initiate the correct follow-up work or pursue an alternative solution in order to reach the desired goal as quickly as possible.

In the solution specified, the at least one mechanically and/or graphically executed display is a purely mechanically implemented display means which can be read directly by the operator. Accordingly, no electronic display means and no sensors to be evaluated electronically are provided in order to signal the maximum closed position of the scissor tool and/or the position of the scissor tool that cuts through a material to be cut.

It is also advantageous that the claimed purely mechanical or graphical display can also be used in devices without an electrical power supply or in devices without an electric battery, i.e. in purely hydraulic or purely spindle-driven devices. Retrofitting older generations of devices is also possible.

Especially in devices with cutting blades or cutting blade tips that can be crossed over one another, the sophisticated display for the separating or closed position of the scissor tool offers significant user advantages.

At least a part of the at least one display can be arranged on the scissor body which pivotably supports the scissor blades. This ensures that the display is always clearly visible or visible. This even when a cutting process is being carried out and the scissors or cutting knives, in particular whose cutting edges are completely immersed in the cutting object or are hidden by other objects or obstacles.

It is also expedient if the at least one display is formed in an end section of the scissor tool facing away from the tips of the scissor blades. In particular, it can be useful if the at least one display is designed with respect to a longitudinal axis of the scissor tool or device approximately at the level of a joint connection between the scissor blades. This results in a display that is well protected from destruction or damage. Despite the protected attachment, the display remains clearly visible to the user of the device. This even applies to a wide range of different orientations of the device and with limited viewing angles for the user.

According to an advantageous embodiment, it can be provided that the at least one display comprises at least one first marking on the scissor body and at least one second marking on at least one of the two scissor blades, the at least one first marking and the at least one second marking functionally interacting or functionally interact and form at least one display on the device. This means that the display remains clearly visible to the user even during deep cuts in which the cutting or scissor blades penetrate far into the cutting object, as can occur, for example, in a vehicle seat. This means that the user always remains informed about the progress and status of the cutting process, so that this cutting process can be carried out as quickly and as controlled as possible. In addition, due to its positioning, such an ad can be interpreted quickly and clearly even by laypeople or even without training instructions.

Furthermore, it can be provided that the at least one first marking and/or the at least one second marking is designed to have a contrasting color compared to a background of the first and/or second marking. This ensures that the display is easy to see and read. In addition, simple and cost-effective attachment is made possible.

According to an advantageous embodiment, the at least one first marking and/or the at least one second marking can be formed by at least one sticker. On the one hand, this can be implemented as cost-effectively as possible and, on the other hand, it enables easy retrofitting to older generations of devices.

Also advantageous is an embodiment according to which it can be provided that the at least one first marking and/or the at least one second marking is raised or recessed relative to a background of the first and/or second marking. This makes it possible to achieve a particularly abrasion-resistant or almost non-destructive display. This is particularly the case with a one-piece or integral design of the display. Such an integral design can be formed by at least one defined depression or notch in the scissor head and/or in at least one of the scissor blades. Alternatively or in combination, an integral design of the display can be formed by at least one defined elevation or a bead on the scissor head and/or on at least one of the scissor blades. The at least one first and/or second marking can therefore be formed by a defined material removal and/or a defined material structure.

According to a further development, it is possible for the at least one display to be formed both on the first broad side of the scissor tool and on the opposite second broad side of the scissor tool. Accordingly, the display is formed at least on two opposite sides of the device, in particular on the upper and lower sides or on the left and right sides of the device. This ensures visibility on the display almost regardless of the orientation or position of use of the device. Alternatively or in combination, the at least one display, in particular the at least one second marking, can be formed on at least one of the back sections of the two scissor blades or can be assigned to at least one of these back sections.

Furthermore, it can be useful if at least one second marking is formed on each of the two scissor blades. The maximum closed position or the effective separation position of the scissor blades can therefore be read on each of the two scissor blades.

In addition, it can be provided that the at least one second marking has at least one mechanical pointer element. This makes the purpose or function of the display intuitive. Even laypeople or untrained users can use the device as optimally as possible and operate it without errors.

Furthermore, it can be provided that the at least one pointer element is attached to at least is attached to one of the two scissor blades. Such a pointer element is a clear or unambiguously recognizable display means. In the event of damage, this indicator can easily be replaced or repaired without the need for a new scissor blade. This also makes it easier to retrofit existing devices.

According to a special embodiment, it is possible for the at least one second marking to be positioned on the first and/or second scissor blades in such a way that the at least one second marking is covered by a mechanical protective cover on the device in an open position of the scissor tool. This mechanical protective cover for the joint mechanism between the scissor blades and the actuator, for example a piston-cylinder arrangement, can be made of plastic. In particular, the protective cover can be elastic or flexible when subjected to strong pressure from the fingers. This can minimize the risk of damage to the display. Especially when the device is placed on the material to be cut, there is no or only a marginal exposure of the display to the material to be cut. This makes it possible to achieve a high level of robustness of the device or display.

According to an advantageous development, it can be provided that the at least one second marking is positioned on the first and / or second scissor blades in such a way that the at least one second marking only becomes visible to the operator, in particular only then appears in relation to a protective cover, when more than 50%, preferably more than 75%, particularly preferably more than 90%, of a maximum travel distance between a maximum open position and the mechanically limited, maximum closed position of the scissor tool are covered. The advantage here is that the operator is not influenced by the display at the start of a cutting process. Only from the phase in which the scissor tool approaches its maximum closed position or its cutting position is the operator informed about this circumstance. Any irritation that some operators may experience can be avoided in this way. In particular, this provides the user with timely, but not premature, status information. This also reduces the risk of damage to the at least one second marking.

Furthermore, it can be provided that the at least one first marking on the scissor body or the at least one second marking on at least one of the two scissor blades is designed as a scale, for example as a value display, as a progress bar, or as a ramp. This scale can be used to monitor the progress of a closing or cutting movement of the scissor tool and/or to read a remaining travel or a percentage until the maximum closed position is reached or until the cutting position of the scissor tool is reached. This advantageously provides the user with a higher level of information. The controllability of the cutting device can thereby be further improved.

In addition, it can be provided that the at least one second marking is designed as a bent sheet metal part, the bent sheet metal part being essentially U-shaped and having two legs and a base section connecting the two legs, the base section being on a back section of the first and/or second scissor blade is supported. This makes the display means very easy to install and the display can be easily retrofitted. In addition, this ensures that the display means can be easily recognized by the user of the device.

A further development is also advantageous, according to which the portable device comprises an electric motor for providing drive power for the scissor tool and a battery for supplying the electric motor with electrical drive energy. The electric motor and battery enable the device to be used quickly, comfortably and effortlessly. The sophisticated, mechanical and/or graphic display does not require any electrical energy from the battery. As a result, the limited electrical capacity of the battery is advantageously available to a large extent for operating the electric motor.

For a better understanding of the invention, it will be explained in more detail using the following figures.

• 1 ein Ausführungsbeispiel einer tragbaren Rettungsschere in ihrer Schließstellung;
• 2 das Gerät nach 1 im Bereich des Scherenwerkzeuges;
• 3 das Scherenwerkzeug nach 2 in einer um dessen Längsachse gedrehten Stellung;
• 4 eine weitere perspektivische Darstellung des Scherenwerkzeuges;
• 5 ein Gerät mit einem schlauchlos angebundenen, akkubetriebenen Hydraulikaggregat.

They each show in an exemplary, schematic representation:

• 1 an embodiment of a portable rescue scissors in its closed position;
• 2 the device 1 in the area of the scissor tool;
• 3 the scissor tool 2 in a position rotated about its longitudinal axis;
• 4 another perspective view of the scissor tool;
• 5 a device with a wirelessly connected, battery-operated hydraulic unit.

As an introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numbers or the same component names, whereby the disclosures contained in the entire description can be transferred analogously to the same parts with the same reference numbers or the same component names. The position information selected in the description, such as top, bottom, side, etc., is also related to the figure directly described and shown and, in the event of a change in position, these position information must be transferred accordingly to the new position.

1 shows an exemplary embodiment of a portable rescue scissors 1, which can be carried and operated by only one operator. Such rescue scissors 1 can be used to rescue people who have had an accident from vehicles. Here, body parts are severed or cut off in order to be able to rescue the affected person from the accident vehicle. Such rescue scissors 1 can also be used by special operations teams, for example to gain access to cordoned off people or to gain access to other locked rooms or objects.

The portable rescue scissors 1 offers at least one cutting function. It can also perform a spreading function using the scissors tool 3. The generic device can also be designed as a dedicated rescue combination device or as an expandable, in particular upgradeable, rescue combination device with a cutting and spreading function. These embodiments are briefly subsumed under the terms “rescue scissors” or “device”.

The rescue scissors 1 shown have a piston-cylinder unit 2 with which the required cutting or spreading forces can be applied to a scissor tool 3. In the embodiment shown, the forces or hydraulic pressures required for this are provided by a separate hydraulic unit, not shown. The fluidic connection to such a hydraulic unit can be made via a hydraulic connection 4 that can be activated and deactivated if necessary.

Instead of the hose-connected rescue scissors 1 shown, it is also possible for such a rescue scissors 1 to comprise an electric motor and an accumulator that supplies this electric motor with electrical drive energy, as shown in 5 is shown as an example. These components are then a direct part of the rescue scissors 1, in particular a battery-operated hydraulic unit directly on the rescue scissors 1. The accumulator and the electric motor operate a hydraulic pump designed on the rescue scissors 1 to apply fluid pressure to the piston-cylinder unit 2.

According to a further embodiment, it can be provided that the rescue scissors 1 have a thread or spindle drive instead of a piston-cylinder unit 2. It is also possible for the rescue scissors 1 to have an integrated, manually operated hydraulic pump in order to be able to open and close the scissor tool 3. The respective drive unit for the scissor tool 3 can therefore be designed according to a number of drive types and embodiments known from the prior art.

The rescue scissors 1 has at least one control element 5 that can be operated manually by an operator and with which closing and opening movements of the scissor tool 3 can be initiated and ended. Typically, a change in the speed of movement of the scissor tool 3 can also be changed using this control element 5 or at least one further control element.

This at least one control element 5 can be formed by mutually adjustable push buttons, by an operating rocker, by a rotary control, a slider and the like.

The scissor knife 3 has a first scissor knife 6 and a second scissor knife 7. The two scissor blades 6, 7 are pivotally mounted relative to a scissor body 8 of the rescue scissors 1. The scissor body 8 defines a bearing point around which the scissor blades 6, 7 are pivotally mounted or are held like scissors.

The first and second scissor blades 6, 7 span a separating or cutting plane 9. A pivot or joint axis 10 between the first and second scissor blades 6, 7 runs perpendicular to the cutting plane 9.

In a complete or almost complete closed position of the scissor tool 3, as in the 1 until 4 is illustrated by way of example, the first and second scissor blades 6, 7 are positioned relative to one another in such a way that they are at least partially in projection onto the cutting plane 9 wisely overlap or cross each other. In particular, the cutting edges 11, 12 on the two scissor blades 6, 7 are moved past one another in a scissor-like manner starting from an open position of the scissor tool 3 during the movement of the scissor tool 3 towards its closed position, or the cutting edges 11, 12 slide past one another.

In contrast to a pliers construction, the scissor tool 3 has cutting edges 11, 12 that slide past each other or cross each other at least in sections with respect to the cutting plane 9 of the scissor tool 9. In the completely closed closed position or in the effective separation position of the scissor tool 3, there is at least a partial overlap between the two scissor blades 6, 7 when the two scissor blades 6, 7 are viewed in normal projection onto the cutting plane 9, in particular when the two scissor blades 6 , 7 can be viewed in the direction of the axial extent of the joint axis 10.

At least one mechanical or graphic display 13, in particular a disconnected position or closed position display, is formed on the generic device, in particular on the portable rescue scissors 1. This disconnected position or closed position display is referred to herein as display 13 for short.

This at least one display 13 is designed to signal a maximum closed position of the scissor tool 3 and/or at least to signal a position of the scissor tool 3 that cuts through an object or material to be cut. Embodiments of this disconnected position or closed position indicator 13 are in the 1 until 5 illustrated as an example.

This mechanical or graphic display 13 can be read directly by the operator of the rescue scissors 1. The display 13 signals to the user that the scissor blades 6, 7 of the scissor tool 3 are in the completely closed position and/or are in such a relative position to one another that a material to be cut has basically been severed by the two scissor blades 6, 7. In particular, in this separating or closing position of the scissor tool 3, which separating or closing position is provided by the display 13 as minimum information, an object that was previously inserted between opened scissor blades 6, 7 is at least within the length of the after the closing process Scissor blades 6, 7 have been severed. This means that it is not necessary for a user to have to see the end sections or tips 16, 17 of the scissor blades 6, 7 in order to be able to recognize the separating or closed position of the scissor tool 3. In addition, the user does not have to estimate the angular position of the scissor blades 6, 7 relative to the scissor body 8 in order to be able to estimate the separating function or separating effect of the scissor tool 3. Such information is conveyed or clearly signaled to the user of the device directly through the display 13.

At least a portion of the at least one display 13, in particular a referencing part or a first marking 14 of the at least one display 13, is arranged on the scissor body 8 or on the piston-cylinder unit 2. According to the example, this is a line marking 14. The first marking 14 indicates the completely closed position or the separation position of the scissor tool 3 when a relatively movable marking 15 on at least one of the scissor blades 6, 7 overlaps or is in planned alignment with the first marking 14, in particular to the line marking 14, stands or was spent.

The at least one display 13 is formed in the end section 18 of the scissor tool 3 facing away from the tips 16, 17 of the scissor blades 6, 7. It is expedient if the display 13 is positioned in relation to the length of the scissor blades 6, 7 within the first longitudinal half of the scissor blades 6, 7, starting from their common joint axis 10.

In particular, the at least one display 13 has at least one first marking 14 on the scissor body 8 and at least one second marking 15 on at least one of the two scissor blades 6, 7. The at least one first marking 14 and the at least one second marking 15 work together functionally in such a way that they build or form the said closed position indicator 13.

The at least one first marking 14 on the scissor body 8 can be oriented radially to the joint axis 10. However, it can also run offset or radially next to the joint axis 10, as shown 2 is visible. The at least one first marking 14 is positioned stationary or fixed relative to the scissor body 8 or relative to the piston-cylinder unit 2, while the at least one second marking 15 arranged on the scissor blades 6, 7 is adjustable or relatively movable relative to the scissor body 8, when the scissor tool 3 carries out an opening or closing movement.

The at least one first marking 14 and/or the at least one second marking 15 can be designed to have a contrasting color compared to a background 19 carrying or underlying these markings 14, 15. This increases the perceptibility of the at least one marking 14, 15 for the user. The markings 14 and/or 15 can be formed, for example, by white or red arrow, dot and/or line markings. If these markings 14, 15 are designed as fluorescent markings, they can also be perceived in the dark. Alternatively, markings 14, 15 can be made to glow or glow in a different way.

Alternatively or in combination with a color-contrasting representation of the at least one marking 14, 15, it is also possible to design the at least one first marking 14 and/or the at least one second marking 15 to be raised or recessed relative to the background 19 behind it. In particular, bead-like or groove- or groove-shaped markings 14, 15 can be made on the rescue scissors 1, with which the at least one display 13 is created.

The 1 and 2 show a top side or a first broad side 20 of the rescue scissors 1. This top side is opposite to a bottom side or a second broad side 21 - 3 - the rescue scissors 1 trained. A support element 22 can be installed on the underside of the device. 1 - Be designed to support or place the device in a defined manner relative to the floor or a horizontal surface. It is expedient if the display 13 is formed both on the top side or first broad side 20 of the scissor tool 3 and on the opposite underside or second broad side 21 of the scissor tool 3.

It is advantageous if at least one second marking 15 is formed on each of the two scissor blades 6, 7, as can be seen from the exemplary embodiment shown. The at least one second marking 15 is designed as a structural or physical pointer element 23. The pointer element 23 is designed on at least one of the scissor blades 6, 7, preferably on both scissor blades 6, 7 respectively. The at least one pointer element 23 carries out a relative movement relative to the fixed scissor body 8 during a pivoting movement of the scissor blades 6, 7.

How best to look 4 As can be seen, the at least one pointer element 23 can be fastened to at least one of the two scissor blades 6, 7 by at least one, if necessary, detachable fastening means 24. Preferably, two pointer elements 23 are attached to each of the scissor blades 6, 7. In particular, one pointer element 23 can be formed for each scissor blade 6, 7 and for each broad side 20, 21 of the scissor blade 6, 7.

This at least one second marking 15 can - as can be seen above all from the 3 , 4 can be seen - be designed as a bent sheet metal part 25. This bent sheet metal part 25 is essentially U-shaped. The two legs 26, 27 and a base section 28 connecting the two legs 26, 27 define the essentially U-shaped bent sheet metal part 25. It is expedient if the base section 28 of this bent sheet metal part 25 is attached to a back section 29, 30 of the respective scissor blade 6, 7 is supported. This allows the at least one marking 15 to be secured against rotation in a simple and reliable manner relative to the respective scissor blades 6, 7.

According to the illustrated embodiment, the at least one second marking 15 is positioned on the first and/or second scissor blades 6, 7 in such a way that the at least one second marking 15 is covered by at least one mechanical protective cover 31 at least when the scissor tool 3 is in the completely open position or only partially closed , 32 on the rescue scissors 1 is covered. The at least one protective cover 31, 32 covers in particular a coupling mechanism between the scissor blades 6, 7 and the drive unit, in particular the piston-cylinder unit 2. In particular, the at least one protective cover 31, 32 covers the joints and the coupling struts between the piston-cylinder unit 2 and the Scissor blades 6, 7. In 3 For better illustration, the protective cover 32 is compared to 4 been hidden. The at least one mechanical protective cover 31, 32 in the area of the coupling or joint mechanism of the scissor tool 3 functions as access protection and/or contamination protection.

It may be expedient if the at least one second marking 15 is positioned on the first and/or second scissor blades 6, 7 in such a way that the at least one second marking 15 only becomes visible to the operator or the user when more than 50%, preferably more than 75%, particularly preferably more than 90%, of a maximum travel distance between a maximum open position and the maximum closed position of the scissor tool 3 have been covered.

At the in 5 The exemplary embodiment shown includes at least one display 13 at least one scale 33. In particular, the at least one first marking 14 on the scissor body 8 or the at least one second marking 15 on at least one of the two scissor blades 6, 7 is designed as a scale 33. This scale 33 can be designed as a percentage scale, as a line scale, as a volume bar, as a ramp or as a plain text display. This scale 33 not only conveys to the user the complete or stop-limited closed position and/or the separating position of the scissor tool 3 that causes a separating cut, but it can also signal the user intermediate positions between the open and closed positions of the scissor tool 3. In particular, the display 13 can therefore also function as a progress indicator in relation to the closing and opening process or as a progress indicator in relation to reaching the maximum closed position or maximum opening position of the scissor tool 3.

In the embodiment according to 5 the drive unit for the scissor tool 3 is designed as an integral component of the rescue scissors 1. In particular, a battery-operated hydraulic unit 34 is a component of the rescue scissors 1. This hydraulic unit 34 includes an electric motor 35 for driving a hydraulic pump 36, which can supply the piston-cylinder unit 2 with the appropriate fluid pressure. The electric motor 35 can be supplied with electrical energy from a battery 37 attached to the rescue scissors 1. The battery 37 can be designed to be coupled and uncoupled from the rescue scissors 1 if necessary.

The device according to 5 is as well as the device according to the 1 until 4 intended for rescuing people who have had an accident or for creating access to locked rooms or for creating access to locked objects.

The exemplary embodiments show possible embodiment variants, whereby it should be noted at this point that the invention is not limited to the specifically illustrated embodiment variants, but rather various combinations of the individual embodiment variants with one another are possible and this variation possibility is based on the teaching on technical action through the subject invention Skills of the specialist working in this technical field.

The scope of protection is determined by the claims. However, the description and drawings must be used to interpret the claims. Individual features or combinations of features from the different exemplary embodiments shown and described can represent independent inventive solutions in their own right. The task underlying the independent inventive solutions can be found in the description.

For the sake of order, it should finally be pointed out that in order to better understand the structure, elements have sometimes been shown out of scale and/or enlarged and/or reduced in size.

Reference symbol list

1

Rescue scissors

2

Piston-cylinder unit

3

Scissor tool

4

Hydraulic connection

5

Control element

6

first scissor knife

7

second scissor knife

8th

Scissor body

9

cutting plane

10

Joint axis

11

cutting edge

12

cutting edge

13

Advertisement

14

first mark

15

second mark

16

Great

17

Great

18

End section

19

underground

20

first broadside

21

second broadside

22

Support element

23

Pointer element

24

Fasteners

25

Bending sheet metal part

26

leg

27

leg

28

Base section

29

Back section

30

Back section

31

Protective cover

32

Protective cover

33

scale

34

Hydraulic unit

35

Electric motor

36

hydraulic pump

37

battery pack

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2018/161103 A1 [0002]
• WO 2011/100655 A2 [0003]

Claims (15)

Portable rescue scissors (1) with cutting function or portable rescue combination device with cutting and spreading function, comprising a scissor tool (3) with a first and a second scissor blade (6, 7), the first and second scissor blades (6, 7) being relative can be pivoted to form a scissor body (8), the first and second scissor blades (6, 7) spanning a cutting plane (9), and the first and second scissor blades (6, 7) being in a closed position of the scissor tool (3). Projection onto the cutting plane (9) overlap or cross one another, and with at least one control element (5) which can be manually operated by an operator for initiating and terminating closing and opening movements of the scissor tool (3), characterized in that at least one on the portable device mechanically and/or graphically executed display (13) is designed, which has at least one display (13) at least for signaling (i) a maximum closed position of the scissor tool (3) or at least for signaling (ii) a position of the scissor tool that cuts through a material to be cut ( 3) is trained. Portable device after Claim 1 , characterized in that at least part of the at least one display (13) is arranged on the scissor body (8). Portable device after Claim 1 or 2 , characterized in that the at least one display (13) is formed in an end section (18) of the scissor tool (3) facing away from tips (16, 17) of the scissor blades (6, 7). Portable device according to one of the preceding claims, characterized in that the at least one display (13) has at least one first marking (14) on the scissor body (8) and at least one second marking (15) on at least one of the two scissor blades (6, 7 ), wherein the at least one first marking (14) and the at least one second marking (15) cooperate functionally. Portable device after Claim 4 , characterized in that the at least one first marking (14) and / or the at least one second marking (15) is designed to contrast in color with respect to a background (19) of the first and / or second marking (14, 15). Portable device after Claim 4 or 5 , characterized in that the at least one first marking (14) and/or the at least one second marking (15) is raised or recessed relative to a base (19) of the first and/or second marking (14, 15). Portable device according to one of the preceding claims, characterized in that the at least one display (13) is formed both on a first broad side (20) of the scissor tool (3) and on an opposite second broad side (21) of the scissor tool (3). is. Portable device according to one of the Claims 4 until 7 , characterized in that at least one second marking (15) is formed on each of the two scissor blades (6, 7). Portable device according to one of the Claims 4 until 8th , characterized in that the at least one second marking (15) has at least one mechanical pointer element (23). Portable device after Claim 9 , characterized in that the at least one pointer element (23) is fastened to at least one of the two scissor blades (6, 7) by a fastening means (24) that can be detached if necessary. Portable device according to one of the Claims 4 until 10 , characterized in that the at least one second marking (15) is positioned on the first and / or second scissor blades (6, 7) in such a way that the at least one second marking (15) is in an open position of the scissor tool (3) by a mechanical Protective cover (31, 32) on the device is covered. Portable device according to one of the Claims 4 until 11 , characterized in that the at least one second marking (15) is positioned on the first and / or second scissor blades (6, 7) in such a way that the at least one second marking (15) only becomes visible to the operator when more than 50%, preferably more than 75%, particularly preferably more than 90%, of a maximum travel distance between a maximum open position and the maximum closed position of the scissor tool (3) have been covered. Portable device according to one of the Claims 4 until 12 , characterized in that the at least one first marking (14) on the scissor body (8) or the at least one second marking (15) on at least one of the two scissor blades (6, 7) is designed as a scale (33). Portable device according to one of the Claims 4 until 13 , characterized in that the at least one second marking (15) is designed as a bent sheet metal part (25), the bent sheet metal part (25) being essentially U-shaped and having two legs (26, 27) and one of the two legs (26, 27) connecting base section (28), the base section (28) being supported on a back section (29, 30) of the first and / or second scissor blades (6, 7). Portable device according to one of the preceding claims, characterized in that the device further comprises: an electric motor (35) for providing drive power for the scissor tool (3), and a battery (37) for supplying the electric motor (35) with electrical drive energy .

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