Equipment-securing means for portable items of equipment
Patent Information
- Application Number
- EP2023821121
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-11-16
- Filing Date
- 2023-12-04
- Publication Date
- 2025-10-15
AI Technical Summary
Existing equipment security systems for portable items are often delicate, difficult to use, and fail to provide optimal fall protection due to their low flexibility, leading to potential entanglement and high shock loads during falls, which can result in equipment loss and user injury.
A robust and user-friendly equipment security device featuring a locking mechanism with concentric guide tracks and ramps that allows the tension element to be locked in any position, preventing retraction force locking and enabling secure equipment use without restriction, along with a predetermined breaking connection for shock load damping.
The device ensures secure equipment attachment with maximum user mobility, prevents entanglement, and minimizes injury risk by allowing the tension element to be locked in any position and absorbing shock loads through a damping mechanism.
Smart Images
Figure 1.1
Abstract
Description
[0001] EQUIPMENT SECURITY FOR PORTABLE EQUIPMENT
[0002] The invention relates to an equipment securing device for portable equipment, in particular portable tools, according to the preamble of patent claim 1.
[0003] In many situations it is desirable that portable equipment is secured against falling or falling. Particularly when working at height, e.g. in industrial climbing or tree care, it is advantageous if equipment such as tools or smartphones is secured against falling when in use. Even in extreme emergency situations it is helpful for the firefighters, paramedics or police officers involved to act quickly and efficiently if equipment is securely attached to the person in question to prevent falls and theft. In outdoor sports, such as climbing, it is also desirable to secure equipment against falling or falling. The dangers and problems associated with equipment falling particularly relate to a high risk of injury for both involved and uninvolved persons.
[0004] Another aspect is that picking up fallen equipment always represents additional work for the user, as the user then has to take additional steps to retrieve the lost item. The industrial climbing sector and the tree care sector concern environments or take place in environments where such additional actions such as an unplanned descent are not very easy to carry out, as the user himself is protected against falls or falls from a height in multiple ways. A fallen piece of equipment, apart from the considerable potential danger for everyone involved, can represent a great deal of additional work for the user or even result in the equipment being destroyed. In extreme situations, any additional time expenditure should be avoided wherever possible, and the user always wants to know that equipment that has fallen out of their hands is secured. This also applies to outdoor sports, for example in climbing.For example, when climbing, fallen equipment poses a significant safety risk.
[0005] In this context, it is known that in order to minimize or eliminate the risk of equipment and items of equipment falling, a loose line, cord or rope, hereinafter referred to as a traction element, is attached at one end to the equipment to be secured and at the other end to the clothing, climbing harness or similar of the user or to a rigid or nearly rigid connection in the vicinity of the user, e.g. house wall, scaffolding, etc.
[0006] One problem with such loose traction elements is that the loose line, cord, or rope constantly acts as a kind of loop and is therefore always considered a potential hazard, especially when working at height, but also in emergency situations. This also applies, but not only, when the secured equipment is not in use. A loosely hanging traction element poses the risk that a user could become entangled in the loose traction element or that the traction element could become entangled and immobilize the user. This poses a significant potential hazard both when working at height, in emergency situations, and during outdoor sports such as climbing.
[0007] Another problem is that if the equipment falls or crashes, enormous (shock) loads are exerted on the equipment and user. This is due to the limited flexibility of such loose tension elements. In the worst case, the dynamic forces are so high that they cause the tension element to break, and even if the equipment is secured to the tension element, there is still a risk of the equipment falling to the ground. Even if the tension element withstands the enormous dynamic loads, the user can still be injured because the shock loads are transmitted to the user's body, posing a risk of bone fractures or similar injuries.
[0008] To prevent the pulling element from becoming tangled or entangled, extendable safety lines or safety ropes are known from the state of the art. These extendable safety lines or safety ropes are usually designed so that the pulling element is wound onto a reel and then retracted into a housing. This minimizes or completely eliminates the risk of the pulling element becoming tangled or entangled when using the equipment.
[0009] Another known aspect for improving the use of an extendable equipment fall arrester is the "locking" of the retraction force acting on the pulling element, which is necessary to retract the pulling element back into the housing. This can be done either manually via a button or automatically when extended. US 20080541 16 A1 discloses a ratchet mechanism that locks and unlocks the pull on the rope, cord, or line. In US 2009084697 A1, this is also achieved using a ratchet mechanism that locks the pull at certain intervals, while at other intervals there is no locking effect. AT 521616 B1 discloses a design in which a pulling element or cable pull and subsequently a pulley are only locked when the extendable pulling element is fully extended.
[0010] The disadvantages of the known systems are, on the one hand, their generally delicate construction and, on the other, their lack of user-friendliness. Often, a cumbersome operation is required to engage and release the locking mechanism. Another negative aspect is that the mechanisms are not optimally adapted to the user's usage pattern, as the user often has to find specific intervals in which the locking mechanism actually locks or unlocks.
[0011] The object of the invention is therefore to remedy this situation and to provide an equipment securing device which is robustly constructed and easy to operate, while at the same time ensuring effective securing of the equipment against falling or falling while allowing maximum freedom of movement for the user while working with the secured equipment.
[0012] The invention solves this problem with an equipment securing device for portable equipment, in particular portable tools, according to the preamble of patent claim 1 with the characterizing features of patent claim 1.
[0013] According to the invention, a locking mechanism is provided, comprising
[0014] - a control track element connected to the roller via a freewheel with two concentrically extending, radially spaced-apart, in particular circular-ring-shaped or circular-ring-sector-shaped, guide tracks and a control guide track extending concentrically to the guide tracks between the guide tracks, in particular circular-ring-shaped or circular-ring-sector-shaped, wherein the control guide track has a locking element locking position, wherein ramps are arranged between the individual tracks, and
[0015] - a locking element engaging in the control track element, guided in the guideways and the control guideway and / or along the ramps of the control track element, and
[0016] - wherein the guideways, the control guideway, and the ramps are designed and arranged in relation to one another in such a way that by pulling on the pulling element with a force that is greater than the force exerted on the roller by the return element, the pulling element can be pulled out of the housing and the locking element can be freely guided in one of the guideways, so that the control track element rotates with the roller, wherein upon the action of a pulling force directed away from the housing on the pulling element that is smaller than the force exerted on the roller by the return element, the pulling element can be retracted into the housing by the return element and the locking element can be pushed from one of the guideways via one of the ramps into the control guideway, and the locking element can be brought into the locking element locking position, so that the rotation of the roller relative to the housing is blocked,and wherein when the locking element is positioned outside the locking element locking position, the roller is rotatable relative to the housing,
[0017] - wherein the locking element can be guided from the locking element locking position via one of the ramps onto the control guide track and / or one of the guide tracks when a tensile force directed away from the housing is applied to the pulling element, which force is greater than the force exerted by the return element on the roller, and the pulling element can be pulled out of the housing and / or rolled up onto the roller.
[0018] An equipment securing device according to the invention thus comprises a locking mechanism that can lock or block the retraction force acting on the extendable pulling element. This advantageously enables the user to work particularly easily and safely with equipment secured with an equipment securing device according to the invention. Furthermore, with an equipment securing device according to the invention, the secured equipment(s) can be used without restriction by the user in the locked state without any disruptive pulling force.
[0019] According to the invention, the roller can be locked in any desired unwinding position, in particular in one locked position per revolution of the roller or, in any case, when the pulling element is pulled out by "locking" into place at the next interval. Only by a further pull on the pulling element of any length, i.e., a short pull or a long pull, but no longer than until the pulling element is fully extended, is the roller released and the pulling element retracted. With known locking mechanisms, a short pull would result in the pulling element being retracted; however, a longer pull (e.g., greater than half a turn) would lock the roller again in the next longer position.The advantage of an equipment securing device according to the invention is that the user can initially lock the roller in any position he desires and then unlock it again by pulling on the pulling element, without having to ensure, as in the known prior art, that the pulling element or the roller will be locked again in the next interval by the renewed release pull.
[0020] Apart from that, the design and implementation of the locking mechanism of an equipment safety device according to the invention are particularly advantageous compared to known locking mechanisms, as a very space-saving integration into the housing of such extendable equipment fall protection devices is possible. Furthermore, the ease of manufacture and high reliability of the individual components are particularly advantageous, and the components of a locking mechanism according to the invention or an equipment safety device according to the invention can be dimensioned as small or large as desired, and can be very robust.
[0021] Further advantageous embodiments of an equipment fuse according to the invention are described in the dependent claims.
[0022] According to an advantageous variant of an equipment securing device according to the invention, the freewheel element can be designed as a leg spring or torsion spring, wherein the leg spring is fixed to a wrap-around bolt arranged on the roller and wherein one end of the leg spring or torsion spring is connected to the control track, so that the control track element can only rotate freely in the freewheel direction. In this way, it is advantageously possible for the wrap of the spring on the wrap-around bolt to increase the wrap force in the locking direction and subsequently the friction force such that twisting is no longer possible. Furthermore, a minimal counteracting force can be generated, particularly when using a leg spring in the freewheel direction of rotation.This has a particularly positive effect on the user-friendliness of an equipment safety device according to the invention: On the one hand, the user needs to exert less force when pulling out the pulling element, which is particularly advantageous because, for example, construction workers would otherwise tire very quickly from frequently pulling on the pulling element at high pull-out forces. On the other hand, a minimal, counteracting force has a positive effect on the locking effect of the locking mechanism, because otherwise the locking element might not be able to reliably jump over the ramps. In other words, the freewheel element advantageously ensures that at least the force necessary for the locking element to slide over the individual ramps is counteracted. Particularly effective return elements can be provided if the return element is designed as a spiral spring or torsion spring.By selecting the return element in this way, a long service life of the holding device can be achieved without, for example, the return element showing signs of fatigue, so that the tension element is perfectly wound onto the roller element throughout the entire service life of the holding device. The design of the spring element as a spiral spring advantageously ensures a compact, space-saving design of the locking mechanism.
[0023] A particularly space-saving and at the same time robust and reliably locking locking element can be provided if the locking element comprises a locking element bolt engaging in the control track element and guided in the tracks of the control track element.
[0024] The locking mechanism of an equipment locking device according to the invention can be designed to be particularly space-saving if the locking element is designed as a slider and is movable along an axis along guides arranged on and / or formed on the housing. With such a design of the locking element, it is advantageously possible to arrange it in the roller.
[0025] According to a further advantageous embodiment of an equipment safety device according to the invention, it can be provided that the locking element is designed as a lever, wherein the lever is arranged on the housing and extends in the direction of the control track element.
[0026] The control track element of an equipment securing device according to the invention can be designed in a particularly space-saving manner if one of the guide tracks is designed as a free-running track and the other of the guide tracks is designed as a blocking track, wherein the free-running track has a directed unidirectional connection to the blocking track and wherein the blocking track has a directed unidirectional connection to the blocking element blocking position. It is not important which of the guide tracks is located inside or outside, but merely that the control guide track is located between the guide tracks. A "directed unidirectional connection" in the context of the invention means a connection between, for example,different paths of the control track element, which cannot be passed in any direction by the blocking element during normal operation of the equipment security, but only in one direction, while passing in the opposite direction is not possible for the blocking element.
[0027] According to a further advantageous embodiment of an equipment securing device according to the invention, the locking element locking position can have a directed unidirectional connection to the control guide track, wherein, in particular, the control guide track is designed as an unlocking extension track. In the context of the invention, an unlocking extension track is understood to mean a control guide track within which the locking element initially moves after leaving the locking element locking position, before possibly changing to another track.
[0028] According to a further advantageous embodiment of an equipment safety device according to the invention, it can be provided that the control guide track has a directed unidirectional connection to the free-running track.
[0029] According to a further advantageous embodiment of an equipment securing device according to the invention, in which a particularly reliable transition between certain lanes can be ensured, while a transition into certain lanes is specifically blocked, it can be provided that the ramps for establishing a directed unidirectional connection between the lanes are each
[0030] - a ramp freewheel side for changing the locking element, in particular the locking element bolt of the locking element, into another track and
[0031] - a ramp blocking side blocking the blocking element, in particular the blocking element bolt of the blocking element, for blocking a change of the blocking element into another track, in particular for blocking a change of the blocking element bolt of the blocking element, along the edge of the ramp.
[0032] According to a further advantageous embodiment of an equipment securing device according to the invention, it can be provided that the control guide track has a stop at one end, in particular at an unlocking extension track end or at one end of the unlocking extension track, so that the locking element, in particular the locking element bolt of the locking element, is blocked at this end in the control guide track. According to a particularly compact embodiment of an equipment securing device according to the invention, it can be provided that at least one of the guide tracks is circular and / or that the control guide track is circular sector-shaped, in particular as a circular sector spanning a semicircle or three-quarters of a circle.
[0033] According to an advantageous variant of an equipment securing device according to the invention, in which a locking of the pulling element can advantageously be achieved even during a winding-up process, it can be provided that the locking element can be pressed from one of the guide tracks via one of the ramps into the control guide track and can be guided back into the locking element locking position during the winding-up process when a pulling force directed away from the housing is applied to the pulling element again, which is smaller than the force exerted by the return element on the roll.
[0034] A further object of the invention is to provide an equipment securing device which, in the event of an impact load occurring, i.e. in the event of a fall or crash of a secured piece of equipment, minimises or dampens the forces occurring and thus reduces or minimises the risk of injury to the user.
[0035] The invention solves this problem with an equipment securing device for portable equipment, in particular portable tools, according to the preamble of patent claim 14.
[0036] According to the invention, the tension element has at least one predetermined breaking connection for fall dampening in the region of its end fixed to the roller, wherein the predetermined breaking connection is designed to absorb the tensile force when a tensile force directed away from the housing and exceeding a predetermined force threshold value acts on the tension element after the tension element has reached the end position and thus to dampen the fall.
[0037] Such a predetermined breaking connection advantageously creates a type of damping element or damping effect inside the housing of an equipment securing device according to the invention, which minimizes or dampens the forces acting on the user or the impact load when a shock load occurs, i.e., when the secured piece of equipment falls. The predetermined breaking connection is preferably designed such that the force threshold is lower than the forces or impact loads typically occurring when equipment falls. This advantageously limits the impact load and absorbs or dissipates the kinetic energy by breaking or releasing the predetermined breaking connection.
[0038] Forces that occur can be absorbed particularly reliably if several predetermined breaking connections are arranged one behind the other over a circumferential section of the roll in the winding direction of the tension element around the roll, wherein it is provided in particular that the predetermined breaking connections extend over at least 25% of a winding of the tension element around the roll, in particular over 50% to 300% of a winding.
[0039] One or more such predetermined breaking connections can be produced in a particularly simple and compact manner if the predetermined breaking connections are designed as a plurality of interconnected tension element sections overlapping one another in the winding direction, wherein the tension element sections are interconnected by sewing or gluing.
[0040] In such a design of a predetermined breaking connection, it is advantageously possible that, for example, the first wound section of the tension element is connected - preferably sewn or glued - in such a way that in the event of an impact load or in the event of the action of a force that exceeds the predetermined force threshold value, the overlapping, connected tension element sections are radially torn open or torn apart.
[0041] This type of predetermined breaking connection or damping element design is particularly advantageous because it allows for very space-saving integration into the housing of an extendable equipment fall arrester. Furthermore, the ease of manufacture and high reliability of the individual components are noteworthy. A further advantage over the state of the art is the compact design, as the damping element can be integrated into the housing of a fall arrester.
[0042] In this context, the force threshold for the predetermined breaking connection of an equipment securing device according to the invention can be the seam tear force or adhesive tear force. In the context of the invention, the seam tear force, adhesive tear force, or tear-open force is understood to be the force required to tear open or separate two overlapping, connected tension element sections. Depending on the type of connection between the tension element sections, this is the seam tear force for sewn tension element sections or the adhesive tear force for glued tension element sections.
[0043] Further advantages and embodiments of the invention will become apparent from the description and the accompanying drawings.
[0044] The invention is schematically illustrated below in the drawings using particularly advantageous, but not restrictive, embodiments and is described by way of example with reference to the drawings.
[0045] The following shows schematically:
[0046] Fig. 1 is a perspective view of an embodiment of an equipment securing device according to the invention,
[0047] Fig. 2 is a perspective view of the embodiment of Fig. 1 without the upper housing shell,
[0048] Fig. 3 is a perspective view of the embodiment of Fig. 1 without the upper housing shell and locking element,
[0049] Fig. 4 is a perspective view of the embodiment of Fig. 1 without the upper housing shell, locking element and control track element,
[0050] Fig 5 is a perspective view of the interior of the roller of the embodiment of Fig.
[0051] 1 including reset element,
[0052] Fig. 6 is a perspective view of the rear of the embodiment of Fig. 1,
[0053] Fig. 7 is a perspective view of the rear of the embodiment of Fig. 1 without the lower housing shell,
[0054] Fig. 8 is a perspective view of the rear of the embodiment of Fig. 1 without the lower housing shell and lower roller half,
[0055] Fig. 9 a perspective detailed view of the roller including the pulling element and locking mechanism of the embodiment from Fig. 1 ,
[0056] Fig. 10 is a perspective detailed view of the locking element of the embodiment of Fig. 1,
[0057] Fig. 1 1 a perspective detailed view of the upper housing shell including the locking element of the embodiment from Fig. 1 ,
[0058] Fig. 12 is a perspective detailed view of the control track element of the embodiment of Fig. 1, Fig. 13 is a side view of the roller system including the locking mechanism of the embodiment of Fig. 1 with marked cutting position,
[0059] Fig. 14 the sectional view AA of the embodiment from Fig. 13: locking element bolt in freewheel track,
[0060] Fig 15 the sectional view AA of the embodiment from Fig. 13:
[0061] Locking element bolt from freewheel track to barrier track,
[0062] Fig 16 the sectional view AA of the embodiment from Fig. 13:
[0063] Locking element bolt in barrier track 1,
[0064] Fig 17 the sectional view AA of the embodiment from Fig. 13:
[0065] Locking element bolt in barrier track 2,
[0066] Fig 18 the sectional view AA of the embodiment from Fig. 13:
[0067] Locking element bolt in locking position,
[0068] Fig 19 the sectional view AA of the embodiment from Fig. 13:
[0069] Locking element bolt in locking extension track,
[0070] Fig. 20 the sectional view AA of the embodiment from Fig. 13: locking element bolt from locking pull-out track into free-running track,
[0071] Fig. 21 the sectional view AA of the embodiment from Fig. 13: locking element bolt at the locking extension track end,
[0072] Fig. 22 a perspective detailed view of the roller system of the embodiment of Fig. 1 without locking mechanism,
[0073] Fig. 23 shows a side view of the roller system of a second embodiment of an equipment securing device according to the invention without a locking mechanism with marked cutting position,
[0074] Fig. 24 a sectional view BB according to Fig. 23 of the second embodiment:
[0075] Predetermined breaking connection tear-start,
[0076] Fig. 25 a sectional view BB according to Fig. 23 of the second embodiment:
[0077] Predetermined breaking connection partial elevation,
[0078] Fig. 26 is a sectional view through a third embodiment of an inventive
[0079] Equipment securing with a locking element designed as a lever element,
[0080] Fig. 27 a perspective detailed view of a housing shell including locking element of the
[0081] Embodiment from Fig. 26,
[0082] Fig. 28 a second perspective detailed view of a housing shell including the locking element of the embodiment from Fig. 26,
[0083] Fig. 29 a first detailed view of the embodiment from Fig. 26: locking element bolt in freewheel track,
[0084] Fig. 30 a second detailed view of the embodiment from Fig. 26: locking element bolt in locking track, Fig. 31 a third detailed view of the embodiment from Fig. 26: locking element bolt in locking position,
[0085] Fig. 32 a fourth detailed view of the embodiment from Fig. 26: locking element bolt in a third detailed view of the embodiment from Fig. 26,
[0086] Fig. 33 a detailed view of the lever with locking element bolt of the embodiment from Fig. 26,
[0087] Fig. 34 a fifth detailed view of the embodiment from Fig. 26: locking element bolt in freewheel track,
[0088] Fig. 35 a plan view of a housing shell including locking element of the embodiment from Fig. 26 with marked cutting position,
[0089] Fig. 36 a sectional view through the housing shell including the locking element from Fig. 35,
[0090] Fig 37 a detailed view of the sectional view from Fig. 36,
[0091] Fig. 38 a detailed view of the predetermined breaking connections of the second embodiment from Fig. 23 shortly before the start of the elevation,
[0092] Fig. 39 is a detailed view of the partially destroyed predetermined breaking connections of the second embodiment from Fig. 23.
[0093] Fig. 1 to Fig. 25 show various views of a first exemplary embodiment of an equipment securing device 100 according to the invention for equipment items, such as handheld devices. In the first exemplary embodiment, the equipment securing device 100 comprises a track locking mechanism and a predetermined breaking connection according to the invention or a damping element, which are described in more detail below. However, it is of course also possible for an equipment securing device 100 according to the invention to be designed only with a locking mechanism and without a predetermined breaking connection, or for a predetermined breaking connection to be used in an equipment securing device known from the prior art.
[0094] An equipment securing device 100 according to the invention comprises, as in the exemplary embodiment (see in particular Fig. 1, Fig. 6), a tension element 4, which can optionally have a tension element connecting element 5 at its end protruding from the housing. The equipment to be secured can be attached or mounted to the tension element 4 and connected to the tension element 4.
[0095] In the exemplary embodiment (see in particular Figs. 1, 5, 7 and 8), the equipment securing device 100 comprises a housing, a roller or roller 7, and a return element 11. In the first exemplary embodiment, the housing comprises two housing shells 1, 2, which can be glued, screwed, or connected by other joining methods using a housing connecting element 6. A through hole 3 can be provided in the center of the two housing shells 1, 2 in order to fasten the equipment securing device 100 to the body or to a rigid connection. However, any other form of fastening is also possible.
[0096] Fig. 2 shows the open housing with roller 7 and an embodiment of a locking mechanism according to the invention, the operation of which will be discussed in more detail below. The roller 7 is rotatably mounted in the housing or housing shell 1. The tension element 4 is wound onto the roller 7 in the retracted state. A control track element 9 is rotatably mounted or installed in the roller 7.
[0097] The control track element 9 is connected to the roller 7 via a freewheel element 10 and has two concentrically extending, radially spaced guideways and a control guideway 27 extending concentrically between the guideways. Ramps 22 are arranged between the individual tracks. The control guideway 27 has a locking element locking position 21.
[0098] A locking element 8, guided in the guideways and the control guideway 27 and / or along the ramps 22 of the control track element 9, engages in the control track element 9, which will be discussed in more detail below.
[0099] In Fig. 3, the roller 7 is shown in the first housing shell 1 with the control track element 9 and freewheel element 10, but without the locking element 8. Fig. 4 shows the freewheel element 10 of the first embodiment in detail.
[0100] In the first exemplary embodiment, a freewheel element 10 in the form of a leg spring 37 is wound onto a wrap-around mandrel 29 and connected at one end E or a leg to the control track element 9 (see Fig. 2, 3, 4). This arrangement advantageously enables the control track element 9 to rotate in only one direction of rotation. In the freewheel direction, the freewheel element 10 or the leg spring 37 enables rotation; in the locking direction, the freewheel element 10 locks the control track element 9. In the exemplary embodiment, the freewheel element 10 is designed as a leg spring, which, in the locking direction, increases the wrap force and subsequently the friction force by wrapping around the wrap-around pin 29 to such an extent that twisting is no longer possible. However, any other type of freewheel element 10 is conceivable. The freewheel element 10 can also be designed in such a way that a minimal force counteracts the freewheel rotation direction.This is achieved in particular by a leg spring 37.
[0101] Fig. 5 and Fig. 8 show the return element 11 in the housing or the first housing shell 1. The roller 7 is rotatably mounted on the housing or the first housing shell 1 relative to the housing or the first housing shell 1, which can be achieved, for example, via a radial bearing formed on the inside of the housing. The return element end inner side 12 and the tension element inner side 13 are also shown in Fig. 5. The return element end 17 can be seen in Fig. 8.
[0102] The tension element 4, one end of which, to which the tension element connecting element 5 is attached, protrudes from the housing and serves to secure objects, is completely wound on the roller 7 in an initial state. In the illustrated embodiment, the tension element 4 is wound on the outer circumference of the roller 7. Fig. 1 shows a housing recess 18 from which the tension element 4 can protrude.
[0103] The return element 11 is arranged between the housing and the roller 7 and exerts a tensile force on the roller 7, so that the tensile element 4 is wound up on the roller 7 in the initial state. In the exemplary embodiment shown, the return element 11 is a spiral spring that is fixed to the bearing on which the roller 7 rests, on the one hand, and to the inside of the wall surface of the roller 7, on the other. However, the return element 11 is by no means necessarily designed as a spiral spring, but can also be designed, for example, as a torsion spring or as another return element known from the prior art. The return element fastening 16 can be seen in Fig. 7 and Fig. 8.
[0104] As a result of the force exerted by the return element 11 on the roller 7, the tension element 4 is automatically rolled up at least partially, for example on the outer circumference of the roller 7, if a tensile force acts on the tension element 4 that is smaller than the tensile force exerted by the return element 11 on the roller 7. In the context of the invention, the initial state is understood to mean that the tension element 4 is completely rolled up on the roller 7 and only one end of the tension element 4 protrudes from the housing. If a tensile force acts on the tension element 4 that is directed away from the housing 1 and is greater than the force exerted by the return element 11 on the roller 7, the tension element 4 can be rolled out to an end position and moved away from the housing or pulled out of the housing.In the context of the invention, the end position is understood to mean that the pulling element 4 is completely unrolled from the roller 7 and pulled out of the housing, so that only the end of the pulling element 4 rests on or against the roller 7 or, for example, only a small part of the pulling element 4 fully or partially wraps around the roller 7.
[0105] To prevent a piece of equipment attached to the tension element 4 from being continuously subjected to a tensile force caused by the return element 11 via the tension element 4 when the item is being used by the user and the tension element 4 is not in its initial state, an equipment securing device 100 according to the invention comprises a locking mechanism that can lock the tension element 4 or the cable pull in any desired extended position. Unlocking is then achieved by pulling the tension element 4 or the cable again for any desired length. An exemplary embodiment of such a locking mechanism according to the invention is shown in Figs. 9 to 21.
[0106] In principle, the locking mechanism of an equipment holder 100 according to the invention functions as follows: The guideways, the control guideway 27 and the ramps 22 are designed and arranged relative to one another in such a way that by pulling on the pulling element 4 with a force that is greater than the force exerted by the return element 11 on the roller 7, the pulling element 4 can be pulled out of the housing 1 and the locking element 8 can be freely guided in one of the guideways, so that the control track element 9 rotates with the roller 7.
[0107] If a tensile force directed away from the housing acts on the tension element 4 that is smaller than the force exerted by the return element 11 on the roller 7, the tension element 4 is retracted into the housing by the return element 11, and the locking element 8 is pressed from one of the guideways via one of the ramps 22 into the control guideway 27. The locking element 8 thus moves into the locking element locking position 21 of the control guideway 27, so that the rotation of the roller 7 relative to the housing is blocked.
[0108] If the locking element 8 is located outside the locking element locking position 21, the roller 7 is rotatable relative to the housing. If a tensile force directed away from the housing acts on the tensile element 4 that is greater than the force exerted by the return element 11 on the roller 7, the locking element 8 is guided from the locking element locking position 21 via one of the ramps 22 onto the control guide track 27 or one of the guide tracks, and the tensile element 4 can be pulled out or rolled up.
[0109] Fig. 9 shows the roller system of the embodiment from Fig. 1, i.e. the roller 7 including the tension element 4, the control track element 9 and the locking element 8. Fig. 9 shows the elements of the locking mechanism. The roller 7 can, but does not have to, consist of two parts, a lower roller shell 14 and an upper roller shell 15 (see Fig. 5 and Fig. 7). In the embodiment, the control track element 9 is rotatably mounted on a radial bearing in the roller 7 or in the housing. The locking element 8 is arranged or installed on the control track element 9.
[0110] Fig. 10 shows the locking element 8 in detail. In the exemplary embodiment, the locking element 8 is designed as a slider and has a bolt, the locking element bolt 19. This bolt engages with the control track element 9 or its tracks and is guided in the tracks of the control track element 9. The guidance in the tracks causes the locking element 8 to move along an axis, which in the exemplary embodiment is implemented in the housing.
[0111] Fig. 11 shows an example of one possible implementation of such a guide. As can be seen in Fig. 11, the locking element 8 is guided along the side surfaces 20 in the housing or housing shell 1. Thus, the locking element 8 can only move along one axis. The axis running surface 31 is also visible.
[0112] As shown in Fig. 4 and Fig. 9 and previously described, the freewheel element 10 - in the exemplary embodiment specifically a leg spring 37 - is wound onto the wrap-around mandrel 29 and connected at one end E or by one leg to the control track element 9. The connection to the control track element 9 can be realized, for example, via a connection point 26, as shown in Fig. 12. This arrangement allows the control track element 9 to rotate in only one direction of rotation. In the freewheel direction, the freewheel element 10 allows rotation; in the blocking direction, the freewheel element 10 blocks the control track element 9. Figs. 12 to 17 show detailed views of a preferred embodiment of the control track element 9 according to the invention.As already mentioned above, the control track element 9 comprises, according to the invention, a plurality of tracks 25, 27, 36 which, through the interconnection according to the invention, achieve the desired effect, namely the blocking of the retraction force in any desired extension position and the re-unblocking by pulling on the pulling element 4 for any desired length.
[0113] According to the invention, the control track element 9 comprises two concentrically extending, radially spaced-apart guide tracks, namely a free-running track 25 and a locking track 36, and a control track 27, which runs concentrically to the guide tracks and is hereinafter referred to as the unlocking / extension track due to its function. The control guide track 27 has a locking element locking position 21, and ramps 22 (Fig. 12) are arranged between the individual tracks 25, 27, 36.
[0114] In the exemplary embodiment, the locking element bolt 19 engages the various tracks 25, 27, 36 of the control track element 9. The free-running track 25 has a one-way connection, i.e. a directed unidirectional connection, to the locking track 36. The locking track 36 has a one-way connection or directed unidirectional connection to the locking element locking position 21. The locking element locking position 21 leads into the unlocking extension track or the control guide track 27. Ramps 22 are constructed between the various tracks 25, 27, 36 such that the locking element bolt 19 only engages or runs in the intended tracks 25, 27, 36. The directed, unidirectional connections are formed by ramps 22, each of which has a ramp freewheel side 24 that can be passed through the locking element 8 or the locking element bolt 19 of the locking element 8 and a ramp blocking side 23 that blocks the locking element 8 or the locking element bolt 19.The ramps 22 thus have a ramp freewheel side 24, which allows the locking element bolt 19 or the locking element 8 to slide over the ramp 22. The other side, the ramp locking side 23, is always designed such that the locking element bolt 19 or the locking element 8 cannot slide over the respective ramp 22, but is guided further along the edge of the ramp 22. The locking extension track end 28 is also designed such that the locking element bolt 19 cannot slide over a ramp 22 here, but is held back at the locking extension track end 28. The freewheel element 10 or a leg of the leg spring 37 is, as previously explained, fixed to the control track element 9 at one end, as shown, for example, in Fig. 12.
[0115] Fig. 13 shows the side view according to Fig. 9 of the roller system and at the same time it shows for the subsequent sectional views Fig. 14 to Fig. 21 on which plane the cut for the sectional views is made.
[0116] Fig. 14 shows the retracted position or initial state of the tension element 4, which is completely wound on the roller 7. The locking element bolt 19 can be seen in the sectional view and is located in the freewheel track 25. The locking element bolt 19 is part of the locking element 8 and, as shown in Fig. 11, is guided on side surfaces 20 in the housing and thus only displacement in one direction is possible.
[0117] If the tension element 4 is now extended, the roller 7 rotates counterclockwise accordingly. However, an equipment securing device 100 according to the invention or its locking mechanism can, of course, also be constructed in a mirror image of the embodiments shown in Figs. 1 to 37, and, for example, the rotation of the roller 7 can also occur clockwise.
[0118] The control track element 9 also follows the rotational movement of the roller 7, since the freewheel element 10 or the leg spring 37 opposes a small force, also in the freewheel direction, which is greater than the frictional force of the adjacent locking element pin 19. When the tension element 4 is extended, the locking element pin 19 comes into contact with the ramp locking side 23 of the ramp 22 between the freewheel track 25 and the locking track 36, which guides the locking element pin 19 along the edge into the locking track 36 (see Fig. 15). The tension element 4 can be extended partially or fully. The locking element bolt 19 is always located in the locking track 36. When it comes to the ramp freewheel side 24 of the ramp 22 within the locking track 36 during the extension (see Fig. 16), it can simply slide over the ramp 22.
[0119] If the force on the pulling element 4 is now reduced so that the force is smaller than the force exerted by the return element 11, resulting in the pulling element 4 retracting again, the locking element bolt 19 is guided along the ramp locking side 23 of the ramp 22 within the locking track 36, see Fig. 17, from the locking track 36 into the locking element locking position 21. In the process, another ramp freewheel side 24 of the ramp 22 between the locking track 36 and the control guide track 27 is also overcome. In Fig. 18, the locking element bolt 19 is in the locking element locking position 21 of the control guide track 27. The pull on the pulling element 4 is now locked and the user is no longer subjected to any disruptive pull on the pulling element 4. He can now use the secured equipment without restriction.
[0120] If the user pulls on the pulling element 4 again, the locking element bolt 19 is guided from a ramp locking side 23 of the ramp 22 between the locking track 36 and the control guide track 27 onto the control guide track 27, with the locking element bolt 19 sliding over a ramp freewheel side 24 of the ramp 22 within the control guide track 27. The locking element bolt 19 is then guided along the control guide track 27, i.e. the unlocking extension track (see Fig. 19). If the renewed pull on the pulling element 4 is only long enough for the locking element bolt 19 to remain within the control guide track 27 orthe unlocking pull-out path remains, and the pulling element 4 is wound up again on the roller 7, the locking element bolt 19 is guided over a ramp locking side 23 of the ramp 22 within the control guide path 27 and over a ramp freewheel side 24 of the ramp 22 between the control guide path 27 and the freewheel path 25 back onto the freewheel path 25 and the pulling element 4 can wind up again on the roller 7 if, after the renewed pull, the pull-out force, ie the pulling force exerted on the pulling element 4 and directed away from the housing, is less than the restoring force of the restoring element 11.
[0121] However, if the tension element 4 is extended from the locking element locking position 21 until the locking element bolt 19 reaches the unlocking extension track end 28, i.e., the end of the control guide track 27 that has a stop, the locking element bolt 19 presses against the unlocking extension track end 28 and exerts a force. If this force is greater than the force required to rotate the freewheel element 10 in its freewheeling direction, the tension element 4 can be extended to any desired length, but only to the full extension or to the end position of the tension element 4.
[0122] If the tensile force on the tension element 4 is now reduced at a point arbitrarily selected by the user such that the restoring force of the restoring element 11 winds the tension element 4 back onto the roller 7, the locking element bolt 19 is guided via the ramp locking side 23 of the ramp 22 within the control guide track 27 and the ramp freewheel side 24 of the ramp 22 between the control guide track 27 and the freewheel track 25 back onto the freewheel track 25 (see Fig. 20). The locking track 36, freewheel track 25, and the control guide track 27 can be arranged as desired within the meaning of the invention, as long as the inventive interconnection of the tracks 25, 27, 36 is ensured. For example, the locking track 36 can also be guided on the outside and the freewheel track 25 in the further inner part of the control track element 9.
[0123] Fig. 22 shows the roller system without the locking mechanism elements. The tension element 4 is wound on the roller 7.
[0124] Usage sequence:
[0125] The use of an inventive, extendable equipment safety device 100 for handheld devices with a track locking mechanism can be carried out as follows:
[0126] - Equipment is attached to the pulling element 4 and the equipment securing device 100 is attached to the body or to a rigid system.
[0127] - The tension element 4 is completely wound on the roller 7 in the housing.
[0128] - The user pulls on the equipment, the pulling element 4 is unwound, the locking element bolt 19 is guided from the free-running track 25 into the locking track 36.
[0129] - The user reaches the desired extension position.
[0130] - The user retains the equipment in their hand, but no longer exerts any pulling force. The locking element bolt 19 is guided by the locking track 36 into the locking element locking position 21. The roller 7 is locked against rotation by the return element 11, and the pulling element 4 is partially or completely unwound. The secured equipment can then be used without restriction, i.e., without any disruptive tension on the pulling element 4.
[0131] - The user wants to rewind the pull element 4: He exerts a pulling force on the pull element 4 and pulls the pull element 4 out as long as desired, but no longer than to the full extension.
[0132] - The locking element bolt 19 is guided along the control guide track 27, which thus serves as an unlocking pull-out track.
[0133] - If the user pulls out the pulling element 4 far enough that the unlocking pull-out track end 28, i.e. the end of the control guide track 27 which has a stop, is not reached, the locking element bolt 19 is guided back into the free-running track 25.
[0134] - If the user extends the pull element 4 far enough to reach the unlocking extension track end 28, the locking element pin 19 hits the unlocking extension track end 28, and the freewheel element 10 releases the rotation of the control track element 9. The user can extend the pull element 4 as desired, up to the maximum extension point. As soon as the user no longer exerts force, the locking element pin 19 is guided into the freewheel track 25.
[0135] - In both cases mentioned above, the tension element 4 is then wound up again, since the locking element bolt 19 is located in the freewheel track 25.
[0136] Fig. 23, Fig. 24, Fig. 25, Fig. 38, and Fig. 39 show a second embodiment of an equipment securing device 100 according to the invention with a predetermined breaking connection 32 or a damping element to minimize the fall of a piece of equipment secured to the tension element 4 and the peak impact load resulting from the fall or crash, or the forces acting on the user. Fig. 23 shows the side view of the roller system without locking mechanism elements and the position of the sectional views from Fig. 24 and Fig. 25.
[0137] In general, the equipment securing device in the second embodiment has the same structure as described in the first embodiment, and additionally at least one predetermined breaking connection 32 in the region of that end of the tension element 4 which is fastened to the roller 7.
[0138] When a tensile force directed away from the housing and exceeding a predetermined force threshold value acts on the tensile element 4 after the tensile element 4 has reached the end position, the predetermined breaking connection 32 or the predetermined breaking connections 32 absorb the tensile force and thus dampen the fall of the equipment.
[0139] The tension element 4 is almost completely unwound from the roll 7 in Fig. 24. The end of the tension element 4 is fixed to a fixing point 30 on the roll 7 and is only partially wound around the circumference of the roll 7. At the point where the tension element 4 first reaches a part of the already wound tension element section, several predetermined breaking connections 32 or the damping connecting element are designed such that overlapping tension element sections 46 (see Fig. 38 and Fig. 39) are connected. This connection can preferably be realized by a seam or adhesive bond 34, as in the second exemplary embodiment. The force threshold value that the tensile force acting on the tension element 3, directed away from the housing, must exceed in order for the predetermined breaking connections 23 to be destroyed is, in this case, the seam tear force or the adhesive tear force. In Fig. 38 and Fig.Fig. 39 shows the tension element 4 with the overlapping tension element sections 36, which are connected by predetermined breaking joints 32, again in detail and without the roller 7. Fig. 38 shows the tension element 4 almost completely unwound and the start of the projection 33 is visible.
[0140] In Fig. 39, the predetermined breaking joints 32 between the overlapping tension element sections 46 are already partially destroyed, and the destroyed seams or adhesive bonds 34 can be seen in a seam destruction area 45. Furthermore, Fig. 39 shows that in an area following the seam destruction area 45, the seam or adhesive bond 34 of the predetermined breaking joints 32 is still intact.
[0141] But other forms of predetermined breaking connections or damping connection elements are also conceivable.
[0142] In the exemplary embodiment, the predetermined breaking connections 32 extend one behind the other in the winding direction of the tension element 4 over a circumferential section of the roller 7 over 50% of a winding around the roller 7. However, shorter circumferential sections or a series of predetermined breaking connections 32 over several windings are also possible here.
[0143] The predetermined breaking joints 32 and the damping connecting element are designed to limit the peak impact load in the event of a fall. The predetermined breaking joints 32 and the damping connecting element are destroyed until the overlapping tension element sections have completely separated from each other. The impact energy is dissipated by the destruction of the predetermined breaking joints 32 and the connecting element.
[0144] In the event of a fall, the predetermined breaking joints 32 or the damping connecting element at the tear-start point 33 are destroyed piece by piece, and as a result, the connected, overlapping tension element sections separate from each other. This is illustrated in Fig. 25, where some of the predetermined breaking joints 32 have already been destroyed. Such predetermined breaking joints 32 can be implemented as often as desired along the circumference; multi-layered overlapping tension element sections connected via one or more predetermined breaking joints 32 are also conceivable.
[0145] Figs. 26-37 show a third embodiment of an equipment locking device 100 according to the invention with a locking element 8 designed as a lever 40. Apart from the specific design of the locking element 8, the equipment locking device 100 in the third embodiment has the same structure as described in the first embodiment. In the third embodiment, the locking element 8 is designed as a lever 40, which is arranged on the housing and extends in the direction of the control track element 9.
[0146] Fig. 26 shows the arrangement of the pivot point 41 of the lever 40 of the locking element 8, which is designed as a cross in Fig. 26. The pivot point 41 is particularly advantageously positioned in the exemplary embodiment, as it is located outside the control track element 9. A cross-shaped configuration of the pivot point 41 is also particularly advantageous, as this shape can be easily manufactured using the injection molding process without component distortion. Alternatively, the pivot point 41 can of course also be designed as a cylinder. The only decisive factor is that the lever 40 can be rotated about the pivot point 41.
[0147] Fig. 27 and Fig. 28 show views of the lever 40 with locking element bolt 19 in the housing and the lower housing shell 1, respectively. In order to be able to manage the height compensation when passing the individual ramps 22, a recess 44 is provided in the housing in the exemplary embodiment. The lever 40 can thus achieve the height compensation via a tilting edge 43. It is particularly advantageous if the lever 40 is slightly flexible, as can be achieved when made of plastic, for example. However, the height compensation, brought about by the ramps 22, can also be carried out with a rigid lever via the recess 44 and tilting edge 43.
[0148] Figs. 29 to 34 show the locking element 8, designed as a lever 40, in the same positions or states as already described in Figs. 14 to 21. Therefore, only a brief description of the individual figures will be given here, and for a more detailed description, reference is made to the figure description of Figs. 14 to 21 above.
[0149] Fig. 29 shows the retracted position or initial state of the tension element 4, which is completely wound on the roller 7. The locking element bolt 19 is located in the freewheel track 25.
[0150] When the tension element 4 is extended, the locking element bolt 19 comes into contact with the ramp locking side 23 of the ramp 22 between the free-running track 25 and the locking track 36, which guides the locking element bolt 19 along the edge into the locking track 36. The tension element 4 can be extended partially or fully. The locking element bolt 19 is always located in the locking track 36. When it reaches the ramp free-running side 24 of the ramp 22 within the locking track 36 during the extension process, it can simply slide over the ramp 22.
[0151] If the force on the tension element 4 is now reduced so that the force is smaller than the force exerted by the return element 11, resulting in the tension element 4 retracting again, the locking element bolt 19 is guided along the ramp locking side 23 of the ramp 22 within the locking track 36, see Fig. 30, from the locking track 36 into the locking element locking position 21. In doing so, another ramp freewheel side 24 of the ramp 22 between the locking track 36 and the control guide track 27 is also overcome.
[0152] In Fig. 31 and Fig. 32, the locking element bolt 19 is in the locking element locking position 21 of the control guide track 27. The pull on the pulling element 4 is now locked and the user is not subjected to any disturbing pull on the pulling element 4. He can now use the secured equipment without restriction.
[0153] If the user pulls the pulling element 4 again, the locking element bolt 19 is guided from a ramp locking side 23 of the ramp 22 between the locking track 36 and the control guide track 27 onto the control guide track 27, with the locking element bolt 19 sliding over a ramp freewheel side 24 of the ramp 22 within the control guide track 27. The locking element bolt 19 is then guided along the control guide track 27, i.e., the unlocking extension track. If the renewed pull on the pulling element 4 is only long enough for the locking element bolt 19 to remain within the control guide track 27 and the pulling element 4 is wound up again on the roll 7, the locking element bolt 19 is guided back onto the free-running track 25 via a ramp locking side 23 of the ramp 22 within the control guide track 27 and via a ramp free-running side 24 of the ramp 22 between the control guide track 27 and the free-running track 25 and the pulling element 4 can wind up again on the roll 7.
[0154] However, if the pulling element 4 is pulled out from the locking element locking position 21 to such an extent that the locking element bolt 19 reaches the unlocking extension track end 28, the locking element bolt 19 presses on the unlocking extension track end 28 and exerts a force. If this force is greater than the force required to rotate the freewheel element 10 in its freewheeling direction, the pulling element 4 can be pulled out as far as desired, but no longer than to the full extension or to the end position of the pulling element 4. If the pulling force on the pulling element 4 is now reduced at a point selected by the user so that the restoring force of the restoring element 11 winds the pulling element 4 back up onto the roller 7, the locking element bolt 19 is guided over the ramp locking side 23 of the ramp 22 within the control guide track 27 and the ramp freewheel side 24 of the ramp 22 between the control guide track 27 and the freewheel track 25 back onto the freewheel track 25 (see Fig. 34).
[0155] Fig. 33 shows a detailed view of the lever 40 from the third embodiment. Like the locking element 8, which is designed as a slide, from the first embodiment, this has a locking element bolt 19 that is guided in the tracks 25, 27, 36 of the control track element 9. On the side of the lever 40 opposite the locking element bolt 19, a connecting element is provided, which enables the rotatable mounting of the lever 40 in the housing. In the third embodiment, the connecting element is a circular opening 42 in the lever 40, so that the lever 40 can be plugged onto the pivot point 41 and the lever 40 is thus rotatably mounted on the housing. However, other types of connecting elements are also conceivable, which enable rotation of the lever 40 about an axis relative to the housing.
[0156] The sectional views in Figs. 35 to 37 show the mounting of the lever 40 in the housing and how the lever 40 engages with the tracks 25, 27, 36 of the control track element 9. Furthermore, Figs. 36 and 37 show the tilting edge 43 and the clearance for the tilting movement, respectively the recess 44.
Claims
Patent claims 1. Equipment securing device (100) for portable equipment, in particular portable tools, comprising - a housing in which a roller (7) and a return element (11) are arranged, wherein the roller (7) is arranged in the housing and is rotatably mounted relative to the housing, - a tension element (4) for fastening equipment, wherein the tension element (4) is completely wound up on the roller (7) in an initial state and one end of the tension element (4) protrudes from the housing, - wherein the return element (11) is arranged between the housing and the roller (7) in such a way that the return element (11) exerts a tensile force on the roller (7) in the direction of the interior of the housing, so that the tensile element (4) can be rolled up on the roller (7), - wherein the pulling element (4) is capable of being unrolled and pulled out relative to the housing when a pulling force directed away from the housing is applied to the pulling element (4), which is greater than the force exerted by the return element (11) on the roller (7), to an end position in which the pulling element (4) is completely unrolled from the roller (7), and - wherein the pulling element (4) can be rolled up onto the roller (7) to the initial state and retracted relative to the housing into the latter when a pulling force directed away from the housing is applied to the pulling element (4), which is smaller than the force exerted by the return element (11) on the roller (7), characterized by a locking mechanism comprising - a control track element (9) connected to the roller (7) via a freewheel (10) with two concentrically extending, radially spaced-apart, in particular circular-ring-shaped or circular-ring-sector-shaped, guide tracks and a control guide track (27) extending concentrically to the guide tracks between the guide tracks, in particular circular-ring-shaped or circular-ring-sector-shaped, wherein the control guide track (27) has a blocking element blocking position (21), wherein ramps (22) are arranged between the individual tracks, and - a locking element (8) engaging in the control track element (9) and guided in the guideways and the control guideway (27) and / or along the ramps (22) of the control track element (9), and - wherein the guideways, the control guideway (27) and the ramps (22) are designed and arranged relative to one another in such a way that by pulling on the pulling element (4) with a force that is greater than the force exerted by the return element (11) on the roller (7), the pulling element (4) can be pulled out of the housing and the locking element (8) can be freely guided in one of the guideways, so that the control track element (9) rotates with the roller (7), wherein upon the action of a pulling force directed away from the housing on the pulling element (4), which is smaller than the force exerted by the return element (11) on the roller (7), the pulling element (4) can be retracted into the housing by the return element (11) and the locking element (8) can be pressed from one of the guideways via one of the ramps (22) into the control guideway (27), and the locking element (8) can be moved into the locking element locking position (21 ) so that the rotation of the roller (7) relative to the housing is blocked,and wherein when the locking element (8) is positioned outside the locking element locking position (21), the roller (7) is rotatable relative to the housing, - wherein the blocking element (8) can be guided from the blocking element blocking position (21) via one of the ramps (22) onto the control guide track (27) and / or one of the guide tracks when a tensile force directed away from the housing acts on the tensile element (4), which is greater than the force exerted by the return element (11) on the roller (7), and the tensile element (4) can be pulled out of the housing and / or rolled up on the roller (7).
2. Equipment securing device (100) according to claim 1, characterized in that the freewheel element (10) is designed as a leg spring (37) or torsion spring, wherein the leg spring or torsion spring is fixed to a wrap-around bolt (29) arranged on the roller (7) and wherein one end, in particular one leg, of the leg spring (37) or torsion spring is connected to the control track (9), so that the control track element (9) is freely rotatable only in the freewheel direction.
3. Equipment securing device (100) according to one of the preceding claims, characterized in that the return element (11) is designed as a spiral spring or torsion spring.
4. Equipment securing device (100) according to one of the preceding claims, characterized in that the locking element (8) comprises a locking element bolt (19) engaging in the control track element (9) and guided in the tracks of the control track element (9).
5. Equipment securing device (100) according to one of the preceding claims, characterized in that the locking element (8) is designed as a slide and is displaceable along an axis along guides arranged on and / or formed on the housing.
6. Equipment securing device (100) according to one of claims 1 to 4, characterized in that the locking element (8) is designed as a lever (40), wherein the lever (40) is arranged on the housing and extends in the direction of the control track element (9).
7. Equipment securing device (100) according to one of the preceding claims, characterized in that one of the guide tracks is designed as a free-running track (25) and the other of the guide tracks is designed as a blocking track (36), wherein the free-running track (25) has a directed unidirectional connection to the blocking track (36) and wherein the blocking track (36) has a directed unidirectional connection to the blocking element blocking position (21).
8. Equipment securing device (100) according to one of the preceding claims, characterized in that the locking element locking position (21) has a directed unidirectional connection to the control guide track (27), wherein it is provided in particular that the control guide track (27) is designed as an unlocking pull-out track.
9. Equipment securing device (100) according to one of the preceding claims, characterized in that the control guide track (27) has a directed unidirectional connection to the free-running track (25).
10. Equipment securing device (100) according to one of the preceding claims, characterized in that the ramps (22) for establishing a directed unidirectional connection between the tracks (25, 36, 27) are each - a ramp freewheel side (24) for changing the locking element (8), in particular the locking element bolt (19) of the locking element (8), into another track (25, 36, 27) and - a ramp blocking side (23) blocking the blocking element (8), in particular the blocking element bolt (19) of the blocking element (8), for blocking a change of the blocking element (8) into another track (25, 36, 27), in particular for blocking a change of the blocking element bolt (19) of the blocking element (8), along the edge of the ramp (22).
11. Equipment securing device (100) according to one of the preceding claims, characterized in that the control guide track (27) has a stop at one end, in particular at an unlocking pull-out track end (28), so that the locking element (8), in particular the locking element bolt (19) of the locking element (8), is blocked at this end in the control guide track (27).
12. Equipment securing device (100) according to one of the preceding claims, characterized in that at least one of the guideways is circular and / or that the control guideway (27) is circular sector-shaped, in particular as a circular sector spanning a semicircle or a three-quarter circle.
13. Equipment securing device (100) according to one of the preceding claims, characterized in that the locking element (8) during the rolling up when a tensile force directed away from the housing is applied again to the tensile element (4), which is smaller than the force exerted by the return element (11) on the roller (7), can be pressed from one of the guide tracks via one of the ramps (22) into the control guide track (27) and can be guided back into the locking element locking position (21).
14. Equipment securing device (100), in particular according to one of the preceding claims, for portable equipment, in particular portable tools, comprising - a housing in which a roller (7) and a return element (11) are arranged, wherein the roller (7) is arranged in the housing and is rotatably mounted relative to the housing, - a tension element (4) for fastening equipment, wherein the tension element (4) is completely wound up on the roller (7) in an initial state and one end of the tension element (4) protrudes from the housing, - wherein the return element (11) is arranged between the housing and the roller (7) in such a way that the return element (11) exerts a tensile force on the roller (7) in the direction of the interior of the housing, so that the tensile element (4) can be rolled up on the roller (7), - wherein the tension element (4) is rollable and extendable relative to the housing up to an end position in which the tension element (4) is completely unrolled from the roller (7) when a tensile force directed away from the housing is applied to the tension element (4), which is greater than the force exerted by the return element (11) on the roller (7), and wherein the tension element (4) has at least one predetermined breaking connection for fall damping in the region of its end fixed to the roller (7), wherein the predetermined breaking connection is designed to act upon the tension element (4) when a tensile force directed away from the housing and exceeding a predetermined force threshold value is applied to the tension element (4), after the Tensile element (4) has reached the end position, absorbing the tensile force and thus dampening the fall.
15. Equipment securing device (100) according to claim 14, characterized in that a plurality of predetermined breaking connections are arranged one behind the other over a circumferential section of the roller (7) in the winding direction of the tension element (4) around the roller (7), wherein it is provided in particular that the predetermined breaking connections extend over at least 25% of a winding of the tension element (4) around the roller (7), in particular over 50% to 300% of a winding.
16. Equipment securing device (100) according to claim 14 or 15, characterized in that the predetermined breaking connections are formed as a plurality of interconnected tension element sections (46) overlapping one another in the winding direction, wherein the tension element sections are interconnected by sewing or gluing.
17. Equipment securing device (100) according to claim 16, characterized in that the force threshold is the seam tear force or adhesive tear force.