Height-adjustable load holding device

Abstract

The invention relates to a height-adjustable load-holding device for suspending a load (5) from a suspension (6). The load-holding device comprises a strap adjustment unit with a clamping lock (2) and a release strap (3), wherein a strap (1) is guided through the clamping lock (2) such that the strap (1) forms a load-bearing strap loop (1.1) and a load-free strap end (1.2). The strap adjustment unit allows the height of the load (5) attached to the clamping lock (2) to be adjusted by selectively pulling on the strap end (1.2) or on the release strap (3). The load-holding device is particularly suitable for the height-adjustable suspension of sports and fitness equipment, hammocks, or furniture.

Description

[0001] The invention relates to a height-adjustable load-holding device for the suspended attachment of a load. It is particularly suitable for suspending loads, such as sports and fitness equipment, hammocks, tools, furniture, or the like, which can be suspended both within and outside the reach of the operator of the load-holding device.

[0002] It is known to use clamp buckles in conjunction with belts to lock the belt under load while still allowing adjustment. For this purpose, clamp buckles incorporate locking and counter-holding elements, such as deflection bars and clamping jaws, which, due to surface roughness and the angle of engagement, provide self-locking in one direction of tension. The belt can be pulled through in one direction of tension; in the other direction of tension, the clamp buckle blocks the belt from being pulled through. Clamp buckles of this type are disclosed, for example, in DE 731 927 C or DE 10 2007 045 170 A1.

[0003] Clamp locks are commonly used for tensioning straps: The clamp lock creates a closed strap loop that can be shortened by pulling on the loose, free end of the strap, the strap's free end. When the strap loop is pulled, the clamp lock blocks the strap. Tensioning straps with such clamp locks are often used to secure packaging and for transport. Unlocking the clamp lock is usually done manually. To do this, the clamp lock must either be moved into a position that releases the self-locking mechanism, or a release mechanism on the clamp lock must be activated, which removes the self-locking mechanism. The previously locked strap loop can now be increased in length in the unlocked state by pulling it through in the otherwise blocked direction of tension.

[0004] The object of the invention is to provide a height-adjustable load-holding device operating with a clamp lock, which allows a suspended load to be raised to a desired height and, if necessary, the load height to be adjusted by actuating the load-holding devices. Operation of the load-holding device should be possible even when the load position is beyond the operator's reach.

[0005] This object is achieved by a height-adjustable load-holding device having the features of claim 1. Advantageous developments of the invention are set out in claims 2 to 13.

[0006] According to the invention, the height-adjustable load-holding device comprises a belt and a belt adjustment unit with a releasable clamp lock. The load-holding device is intended for the suspended attachment of a load to the belt, which is guided via a suspension. The load, for example a piece of sports equipment that can be used in a suspended manner, is attached or suspended to the clamp lock, usually to a load holder of the load-holding device attached to the clamp lock. The load holder can be any fastening element with which the load can be attached to the load-holding device - preferably releasably - such as a hook, a loop, a snap connection, a belt lock, or the like. The load holder is preferably connected to the clamp lock by means of a load holder pivot bearing, so that the clamp lock can rotate relative to the load holder about the rotation axis of the load holder pivot bearing.This allows the load holder to always align itself vertically downwards when subjected to tensile force from the load, without bending forces being transferred to the clamp lock.

[0007] In this context, a strap is any elongated, tensile, flexible elastic element designed or suitable for carrying, securing, or handling loads. This includes, among other things, conventional webbing and ropes, but also cables or other comparable load-bearing elements that can serve a similar purpose. The strap is preferably designed as a conventional webbing.

[0008] In this context, the term clamp lock also includes clamp buckles and belt buckles.

[0009] When used as intended, one end of the strap, the fixed end of the strap, is secured in the clamp buckle. When used as intended, the other end, the free end, is threaded through the clamp buckle. The double portion of the strap between the suspension and the clamp buckle forms the load-bearing portion of the strap in the form of a sling. When used as intended, this load-bearing sling is placed around the suspension, which could be a pole, hook, branch, or similar. The suspension, which is not part of the height-adjustable load-holding device but is required for its use, is usually located above the desired suspension position for the load.

[0010] The strap is thus guided through the clamp buckle in such a way that, when a tensile load is applied to the belt loop, the strap clamps itself into the clamp buckle in a self-locking manner. This means that when a load is applied via the load holder, the clamp buckle automatically clamps the strap through friction or force, and self-locking fixes the strap length of the load-bearing belt loop. The clamp buckle prevents the strap from slipping when the belt loop is loaded.

[0011] The free end of the belt is also guided in the clamp buckle in such a way that pulling on the unloaded free end of the belt overcomes the clamping force and allows the belt to be pulled through the clamp buckle towards the free end of the belt. This means that pulling on the free end of the belt allows the belt to be pulled through, as the clamp buckle is designed in such a way that the frictional engagement in the clamp buckle is overcome with minimal force when the belt is pulled towards the free end. The belt length of the load-bearing belt sling is thus shortened by pulling on the unloaded free end of the belt, i.e. the belt adjustment unit hanging on the load-bearing part of the belt, and with it the load, can be pulled upwards in a continuous manner.

[0012] The clamp buckle has a release mechanism that, when activated, releases the clamp buckle, i.e., removes the clamping and thus also the self-locking of the belt in the clamp buckle. While the belt can only be pulled in one direction, i.e., only unidirectionally through the clamp buckle, the release mechanism allows the belt to be pulled through the clamp buckle in both pulling directions, i.e., bidirectionally. In the following, the state of the clamp buckle when the release mechanism is not activated is referred to as the clamped state, and the state of the clamp buckle when the release mechanism is activated is referred to as the unlocked state.

[0013] In order to be able to actuate the unlocking mechanism, the belt adjustment unit comprises, in addition to the clamp lock, a release belt connected to the unlocking mechanism.

[0014] The strap or the free end of the strap is guided in the clamp buckle in such a way that by pulling on the release strap connected to the release mechanism, the clamp buckle can be moved along the strap, releasing the clamp and becoming self-locking, whereby the strap length in the load-bearing strap sling is continuously extended. This means that the release strap of the strap adjustment unit is attached to the clamp buckle or the release mechanism of the clamp buckle in such a way that when the release strap is pulled, the clamp buckle is unlocked and simultaneously moved along the strap, whereby the free end of the strap is pulled through the clamp buckle towards the strap sling side. This increases the strap length of the load-bearing strap sling, i.e. the strap adjustment unit hanging from the load-bearing strap sling and with it the load attached above the load holder can be pulled continuously downwards.

[0015] The height-adjustable load-bearing device or its belt adjustment unit allows the load to be continuously adjusted to the desired load height by either pulling on the unloaded free end of the belt or on the release belt. The load-bearing length of the belt, i.e. the load-bearing belt sling, can be adjusted one-handed by a single person and without any aids. The height-adjustable load-bearing device can be used to suspend a wide variety of loads; for example, sports equipment, fitness equipment, hammocks, furniture, tools and much more can be attached as loads. People can also be part of the load, for example, if the person is sitting on a suspended seat. The load-bearing device can therefore also be used as a lifting aid in outpatient or inpatient healthcare to move physically disabled patients.The belt adjustment unit ensures that the belt is securely clamped under load and allows for easy height or lowering by either pulling on the free end of the belt or the release strap. Another advantage of the height-adjustable load restraint device is that the height can be adjusted by pulling downwards, regardless of whether the free end of the belt or the release strap is pulled. This means that pulling downwards on the free end of the belt raises the load upwards, while pulling downwards on the release strap lowers the load downwards.

[0016] To achieve self-locking, the clamp buckle usually comprises a locking element and a counter-holder element, between which the belt is guided. The locking element and the counter-holder element act against each other in such a way that the belt is clamped in one of its two possible pulling directions, i.e. unidirectionally. The locking element presses the belt against the counter-holder element in such a way that the belt cannot slip through the clamp buckle when the loop side of the belt is pulled, while it can be pulled through when the free end of the belt is pulled. Unlocking the clamp buckle, which occurs when the unlocking mechanism is activated, releases the clamping and the self-locking, for example by releasing the pressure of the locking element against the counter-holder element, and thus allows the belt to be pulled through the clamp buckle in both pulling directions, i.e. bidirectionally.

[0017] The locking element can be pressed against the counter-holder element by means of a pressing element, in particular by means of a pressing element acting by spring force or a pressing element designed in the form of a spring element. In this case, the unlocking mechanism is designed such that the pressing effect of the pressing element is canceled by the unlocking mechanism, for example, by pushing away the spring element. In a clamp lock design in which the locking element is continuously pressed towards the counter-holder element by means of a pressing element acting by spring force, the unlocking mechanism is thus designed to cancel the spring force of the pressing element acting towards the counter-holder element upon actuation of the unlocking mechanism.

[0018] In the clamp lock design with a pressure element designed as a spring element, the pressure element, which maintains the clamping effect by clamping the strap between the locking element and the counter-holder element, can simultaneously cause the self-resetting of the unlocking mechanism: The unlocking mechanism is activated by removing the spring force. After the unlocking mechanism has been activated, the spring element automatically returns to its original position and presses the locking element with the strap back against the counter-holder element. The pressure element simultaneously functions as the self-resetting element of the unlocking mechanism.

[0019] Alternatively, the self-resetting of the unlocking mechanism can also be achieved by utilizing the tensile force exerted on the clamp lock by the load.

[0020] According to such a design of the height-adjustable load-holding device, the clamping buckle is attached to the fixed belt end by means of a belt-fixing end pivot bearing, rotatable or foldable around the rotation axis of the belt-fixing end pivot bearing. When the load is applied downwards by the load attached to the load holder, the clamping buckle is folded upwards around the rotation axis of the belt-fixing end pivot bearing and rests against the load-bearing belt loop. The belt-fixing end pivot bearing can, for example, be formed by the fixed belt end and a pin attached to the clamping buckle, with the fixed belt end being guided around the pin in the form of a closed loop.

[0021] In addition, the release strap is attached to the clamp lock in such a way that when the release strap is pulled downwards, the clamp lock folds down by rotating around the axis of rotation of the belt fastening pivot bearing.

[0022] In this version of the belt adjustment unit, the clamp lock pivots back and forth between two positions: When the clamp lock is subjected solely to tensile stress from the load, the clamp lock pivots upward; when the release strap is subjected to a correspondingly high tensile load, the clamp lock pivots downward. The pivoting or rotating movement occurs around the rotation axis of the belt-fixing pivot bearing.

[0023] In this embodiment, the clamp lock further comprises a locking element designed as a slide and a counter-holding element designed as a counter-holding bar. Both are aligned parallel to the axis of rotation of the belt-fixing end pivot bearing. The slide is guided so as to be longitudinally displaceable between two stop positions within parallel slide guide grooves incorporated in the clamp lock. The counter-holding bar is arranged adjacent to the stop position of the slide guide grooves which is remote from the belt-fixing end pivot bearing, i.e. when the clamp lock is folded upwards, the counter-holding bar is located at the top of the clamp lock. When the clamp lock is folded upwards, the belt is guided around the slide in the form of a deflection loop. The belt deflected around the slide in this way presses the slide against the counter-holding bar when there is a tensile load on the belt loop side. This clamps the belt between the slide and the counter-holding bar in a self-locking manner.

[0024] When the clamp buckle is folded down, the strap is no longer guided around the carriage in the form of a deflection loop, but in a straightened path. The load-bearing strap loop now pushes the carriage away from the counter-holding rod within the carriage guide grooves, releasing the clamp and self-locking mechanism. The clamp buckle is unlocked by folding down.

[0025] Accordingly, when the clamp lock is folded downwards, the unlocking state is formed and when the clamp lock is folded upwards, the clamping state is formed.

[0026] In addition to the belt-fixing end pivot bearing connecting the belt-fixing end to the clamping buckle, this version of the load-holding device can also feature the load-holder pivot bearing. The rotation axes of both bearings are aligned parallel to each other. When folded upwards, the rotation axis of the load-holder pivot bearing is located below the rotation axis of the belt-fixing end pivot bearing. When folded downwards, the rotation axis of the load-holder pivot bearing is located above the rotation axis of the belt-fixing end pivot bearing.

[0027] In versions of the load holding device with a foldable clamp lock, it can also be provided that the strap-free end is guided parallel to the release strap in such a way that a downward pull on the strap-free end - just like the downward pull on the release strap - folds the clamp lock downwards and thereby unlocks it.

[0028] It can further be provided that the counter-holder element and / or the locking element have a friction surface in contact with the belt, which - by selection of the material or by surface structuring - increases the friction of the belt sliding on this friction surface.

[0029] The belt adjustment unit can be motorized, meaning it is equipped with an electric motor for belt adjustment, for example. The motor can be controlled via a remote control and / or a software application (e.g., via a smartphone).

[0030] The belt adjustment unit of the height-adjustable load restraint device preferably has an internal belt guide, which ensures optimal belt passage and locking in the desired position. For this purpose, the belt can, for example, have a stiffener at the end of the free end. This allows the belt to slide as straight as possible through the belt adjustment unit; it also prevents the tip of the belt from rolling back or pointing in the wrong direction.

[0031] The clamp lock is preferably made of a durable material, such as a metallic material or a high-strength plastic.

[0032] Furthermore, the belt and / or the release belt are preferably made of a flexible, tensile material, such as polyamide or polyester.

[0033] The height-adjustable load-holding device may also comprise a sensor for measuring the tension of the belt and a wireless data transmission unit coupled to the sensor, wherein the data transmission unit is configured to wirelessly transmit the belt tension measurement data detected by the sensor to an external display device.

[0034] The invention is explained in more detail below using exemplary embodiments and with reference to the schematic drawings, wherein identical or similar features are provided with the same reference numerals; in this connection Fig. 1: two load holding devices according to a first embodiment in perspective view; Fig. 2: the functionality of the load holding device according to the first embodiment in perspective views; Fig. 3: the first embodiment of the load holding device and its functionality in various detailed views; Fig. 4: a second embodiment of the load holding device and its functionality in various sectional views; Fig. 5: a third embodiment of the load holding device and its functionality in various sectional views; Fig. 6: the third embodiment of the load holding device during adjustment in the clamped state in a sectional view; Fig. 7: the third embodiment of the load holding device on a suspension in a sectional view; Fig. 8: the third embodiment of the load holding device in the clamped state in perspective view; Fig. 9: the third embodiment of the load holding device in the unlocked state in perspective view.

[0035] The representation according toFig. 1 shows two parallel load-holding devices suspended next to each other according to a first embodiment. The load 5 to be attached or attached to the load-holding devices is in the embodiment according to Fig. 1 One gymnastic ring each. In addition to the gymnastic ring, load 5 typically also includes the athlete (not shown) performing on the gymnastic rings.

[0036] The respective load holding device comprises the belt 1, the clamping lock 2 through which the belt 1 is guided, the release belt 3 and the load holder 4 attached to the clamping lock 2 for releasably securing the load 5. Fig. 1 In the load holding device shown on the left, the load 5 is detached from the load holder 4 of the load holding device; Fig. 1 In the load holding device shown on the right, the load 5 is connected to the load holding device via the load holder 4.

[0037] Above the clamp lock 2 is located in the illustration according to Fig. 1 the part of the belt 1 designed as a load-bearing belt loop 1.1. The downwardly hanging part of the belt 1 extending from the clamp buckle 2 forms the load-free belt end 1.2. The fixed belt end 1.3 of the belt 1 is fixed in the clamp buckle 2. The release strap 3 is also attached to the clamp buckle 2. The clamp buckle 2 and the release strap 3, together with the part of the belt 1 located within the clamp buckle 2, form the belt adjustment unit.

[0038] The height adjustment of the first embodiment of the load holding device is shown using a hanging load 5 (gymnastic ring) in the partial figures (a) - (c) of the Fig. 2 shown.

[0039] In partial figure 2 (a), the belt 1, with its part designed as a belt sling 1.1, is attached to the rod-shaped suspension 6 by looping it around the latter, so that the load holder 4, released from the load 5, with the clamp lock 2 attached to it, hangs vertically downwards. The belt 1 is locked in the clamp lock 2 by self-locking, so that when the load 5 is attached, the belt length of the belt sling 1.1 remains unchanged, i.e., the clamp lock 2 does not slip on the belt 1. The belt-free end 1.2 of the belt 1 and the release belt 3 also hang downwards. They are usually selected to be significantly longer than the load 5 reaches towards the ground, so that a load height can be adjusted well above the operator's arm length.

[0040] According to sub-figure 2 (b), when tension is applied to the free end 1.2 of the belt 1 (represented by the arrow with a solid border), the clamping force of the belt 1 in the clamping lock 2 is overcome, whereby the belt length of the belt loop 1.1 is shortened, i.e. the clamping lock 2 with the load 5 is pulled upwards (represented by the arrow with a dotted border).

[0041] Partial Figure 2 (c) illustrates the downward pulling of the load 5 attached to the clamp buckle 2: By pulling on the release strap 3 (represented by the arrow with a solid border), the release mechanism is activated and the self-locking of the strap 1 in the clamp buckle 2 is released. By pulling on the release strap 3, the strap 1 slides through the clamp buckle 2; the strap length of the belt loop 1.1 increases. The clamp buckle 2—and thus the load 5—is consequently pulled downward (represented by the arrow with a dotted border).

[0042] In Fig. 3, which shows the first embodiment of the load holding device, the belt adjustment unit with the guidance of the belt 1 in the clamping lock 2 is shown in detail. Part 3 (a) is a closed perspective view and part 3 (b) is a broken-away perspective view of the belt adjustment unit. The fixing of the fixed end 1.3 of the belt in the clamping lock 2 is illustrated in particular in part 3 (b). The sectional views of part 3 (c) and (d) show in part 3 (c) the belt adjustment unit with the clamping lock 2 in the clamped state and in part 3 (d) with the clamping lock 2 in the unlocked state. In the clamped state according to part 3 (c), the belt 1 can be pulled through the clamping lock 2 by pulling on the free end 1.2 of the belt (arrow with solid border), whereby the clamping lock 2 moves upwards in the load-bearing belt loop 1.1 (arrow with dotted border).According to sub-figure 3 (d), by pulling on the release strap 3 (arrow with solid border), the clamping lock 2 is unlocked, i.e., the clamping and self-locking in the clamping lock 2 are released, whereby the clamping lock 2 is simultaneously pulled downward along the strap 1 (arrow with dotted border). To achieve the clamping effect, the clamping lock 2 comprises the clamping element 7 designated in sub-figures 3 (b) - (d) and the counter-holder element 8; the strap 1 is guided between the two. The compression spring 9.1 designated in sub-figures 3 (c) and (d) serves as the pressing element 9.

[0043] The design of the belt adjustment unit according to Fig. 4 , which shows a second embodiment of the load holding device, operates according to a similar functional principle as the one shown in the Fig. 1 to 3shown. The belt 1 is clamped in the clamping lock 2 between the counter-holder element 8 and the locking element 7, which is pressed in the direction of the counter-holder element 8 by the compression spring 9.1. The counter-holder element 8 is a counter-holder element with a friction surface 8.1. The friction surface is formed on the surface of the counter-holder element 8 that is in contact with the belt 1. This surface is roughened to increase friction. When the clamping lock 2 is loaded by pulling downwards (arrow with solid border) as shown in part figure 4 (a), self-locking occurs through the locking element 7, designed as a pawl 7.1, on the belt 1. The clamping lock 2 is fixed to the belt 1 in this position. By pulling on the belt free end 1.2 - see part figure 4 (b) - the belt 1 can be pulled through the clamping lock 2 after overcoming the clamping force exerted on the belt 1 between the locking element 7 and the counter-holder element 8, which now moves along the belt loop 1.1 is moved upward. When the release strap 3 is pulled downward - see Figure 4 (c) - the locking element 7 is pulled away from the strap 1 by compression of the compression spring 9.1, i.e., the clamp lock 2 is unlocked. Pulling on the release strap 3 simultaneously causes the clamp lock 2 to be pulled downward along the strap 1.

[0044] According to the Fig. 5 to 9In the third embodiment of the load holding device shown, the belt adjustment unit has the load holder pivot bearing 10 and the belt-fixing end pivot bearing 11. The load holder pivot bearing 10 is configured between the load holder 4 and the clamping lock 2 such that the load holder 4 always points vertically downwards when the load 5 is attached. The belt-fixing end 1.3 of the belt 1 is guided by means of a closed loop around a pin which, when a tensile load acts vertically downwards on the load holder 4, is arranged above the load holder pivot bearing 10 and parallel to it. The closed loop guided around this pin forms the belt-fixing end pivot bearing 11. The arrangement of the belt-fixing end pivot bearing 11 and the load holder pivot bearing 10 causes the clamping lock 2 to fold upwards around the axis of rotation of the belt-fixing end pivot bearing 11 when loaded by the load 5.

[0045] The clamp lock 2 has the carriage 7.2 as a locking element 7, around which the belt 1 is deflected in the clamp lock 2. The carriage 7.2 is inserted longitudinally displaceably within the carriage guide grooves 12 of the clamp lock 2.

[0046] When the load-holding device is loaded by the load 5 attached to the load holder 4, the clamp lock 2 (see Figure 5 (a)) is folded upward, provided that the strap-free end 1.2 and the release strap 3 are not pulled downward. The folding upwards is caused by the load 5.

[0047] The section of the belt 1 guided within the clamp lock 2 wraps around the carriage 7.2 in such a way that the deflected belt 1 rests against the bottom of the carriage 7.2 and the belt sections leading away from the carriage 7.2 point upwards, i.e., when the clamp lock 2 is folded upwards, the belt 1 forms a deflection loop on the carriage 7.2. When the load 5 is applied to the belt loop 1.1, the belt section formed by the belt loop 1.1 and resting against the carriage 7.2 pulls the carriage 7.2 in the direction of the stop position remote from the belt fixed end pivot bearing 11 within the carriage guide grooves 12, i.e. upwards. In addition, the section of the belt 1 guided around the carriage 7.2 is pressed together with the carriage 7.2 against the counter-holding element 8 designed as a counter-holding rod 8.2. The belt 1 is thereby clamped in a self-locking manner between the locking element 7 designed as a slide 7.2 and the counter-holding element 8 designed as a counter-holding rod 8.2.This self-locking clamping of the belt 1 in the clamp lock 2 locks the belt adjustment unit on the belt 1 when loaded by the load 5.

[0048] Since the height of the belt fixing end pivot bearing 11 is fixed due to the load on the belt loop 1.1 caused by the load 5, when the release belt 3 is pulled - see part figure 5 (b) - the clamping buckle 2 is folded downwards about the axis of rotation of the belt fixing end pivot bearing 11 and the clamping buckle 2 is thereby unlocked. As a result of the folding down, the section of the belt 1 guided around the carriage 7.2 no longer runs as a deflection loop, but in a straightened, slightly S-shaped course. This means that the pressing of the carriage 7.2 against the counter-holding rod 8.2 caused by the deflection loop and thus the self-locking clamping of the belt 1 between the carriage 7.2 and the counter-holding rod 8.2 is canceled. The clamping buckle 2 can be released by further pulling on the release belt 3 after it has been folded down orTo unlock the clamp lock 2, it can be pulled downwards (arrow with solid border) to lower the load 5 to a desired, lower load height (arrow with dotted border). The clamp lock 2 is folded back into its raised starting position by the load 5. The unlocking mechanism of the clamp lock 2 in the third embodiment of the height-adjustable load holding device is realized by the variable strap guide in the clamp lock 2 when the clamp lock 2 is folded down. The self-resetting of the unlocking mechanism occurs when the clamp lock 2 is folded back by the load 5.

[0049] Pulling the free end of the strap 1.2 downwards - see Figure 5 (c) - causes the clamp buckle 2 to fold down and unlock in the same way as pulling the release strap 3. By further pulling the free end of the strap 1.2 after folding down or unlocking the clamp buckle 2 (arrow with solid border), the clamp buckle 2 can be pulled upwards over the strap loop 1.1 placed around the suspension 6 (arrow with dotted border) in order to raise the load 5 to a desired, higher load height. The release strap 3 can also be pulled to support the downward pull, so that the clamp buckle 2 is held in the unlocked state.

[0050] However, in order to raise the load 5 to a higher load height, it is not absolutely necessary to fold down the clamp lock 2. Pulling the strap free end 1.2 upwards - see Fig. 6- also allows the self-locking mechanism to be removed (arrow with solid outline), since pulling on the free end of the belt 1.2 releases the tension in the belt loop 1.1 and thus the pressure of the carriage 7.2 against the counter-holding rod 8.2. For example, if the free end of the belt 1.2 is first guided upwards over the suspension 6 and then downwards again, the load 5 can be raised to a higher load height by pulling on the free end of the belt 1.2 - without unlocking the clamp lock 2 (arrow with dotted outline).

[0051] A belt guide with the belt free end 1.2 guided over the suspension 6 shows Fig. 7 . With this belt guide, the load holding device acts like a pulley; it is particularly suitable for lifting heavy loads 5.

[0052] The perspective views of the third embodiment of the height-adjustable load holding device according to the Fig. 8 and Fig. 9illustrate the design of the foldable clamp lock 2 with the locking element 7 designed as a slide 7.2 and the counter-holding element 8 designed as a counter-holding rod 8.2.

[0053] Fig. 9further shows two locking pins 13 for temporarily locking the belt's free end 1.2. The locking pins 13, which point inward toward each other from the sides of the clamp buckle 2, leave a defined locking pin spacing free between the mutually facing ends of the locking pins 13. The belt 1 has a width that almost fills the clamp buckle 2 and is greater than the locking pin spacing. The release belt 3, in the exemplary embodiment, has a width that is smaller than the locking pin spacing; however, it can also have the same width as the belt 1, for example. The belt's free end 1.2 can - together with the release belt 3 - be guided inwardly around the locking pins 13, resting against the clamp buckle 2. This ensures that the belt 1 remains pressed against the counter-holding rod 8.2 when the clamping lock 2 is folded down, so that the clamping and self-locking action are not completely lost even when the clamping lock 2 is folded down.Threading the strap 1 within the locking pins 13 ensures that the clamp is completely released in the event of accidental pulling on the strap's free end 1.2 or the release strap 3. The strap 1 can be guided in the manner shown in Figure 5 (a) if the load height is to remain permanently constant. List of reference symbols

[0054] 1 Belt 1.1 Load-bearing belt sling 1.2 Load-free belt end 1.3 Belt-fixing end 2 Clamp lock 3 Release belt 4 Load holder 5 Load 6 Suspension 7 Locking element 7.1 Pawl 7.2 Carriage 8 Counter-holding element 8.1 Counter-holding element with friction surface 8.2 Counter-holding rod 9 Pressure element 9.1 Compression spring 10 Load holder pivot bearing 11 Belt-fixing end pivot bearing 12 Carriage guide groove 13 Locking pin

Claims

1. Height-adjustable load-holding device with a belt (1) for suspended fastening of a load (5) to a suspension (6), wherein the load-holding device has the belt (1) and a belt adjustment unit which comprises a clamping lock (2) provided with a self-resetting unlocking mechanism and an unlocking belt (3) connected to the unlocking mechanism of the clamping lock (2), wherein the belt (1) forms a fixed belt end (1.3) which is fixed in the clamping lock (2), and wherein the belt (1) is guided through the clamping lock (2) in such a way that - a load-bearing belt loop (1.1) of the belt (1) is designed to be looped around the suspension (6), - the belt (1) clamps itself in a self-locking manner in the clamping lock (2) when a tensile load is applied to the load-bearing belt loop (1.1), - the belt (1) is released by pulling on a spring (23) protruding from the clamping lock (2). belt release end (1.2) of the belt (1) can be pulled through the clamping lock (2) while releasing the self-locking mechanism, whereby the belt length in the load-bearing belt loop (1.1) of the belt (1) is continuously shortened, - the clamping lock (2) unlocked by pulling on the unlocking belt (3) can be moved along the belt (1) while releasing the clamping and self-locking, whereby the belt length in the load-bearing belt loop (1.1) is continuously lengthened.

2. Height-adjustable load-holding device according to claim 1, characterized in that the load holding device has a load holder (4) attached to the clamp lock (2), to which the load (5) can be detachably attached.

3. Height-adjustable load-holding device according to claim 2, characterized in that the load holder (4) is rotatably connected to the clamp lock (2) by means of a load holder pivot bearing (10).

4. Height-adjustable load-holding device according to one of claims 1 to 3, characterized in thatthe clamping lock (2) has a locking element (7) and a counter-holder element (8), between which the belt (1) is guided in such a way that the belt (1) can be pulled through in one pulling direction and the belt (1) clamps itself in a self-locking manner in the other pulling direction.

5. Height-adjustable load-holding device according to claim 4, characterized in that the locking element (7) is continuously pressed in the direction of the counter-holder element (8) by means of a pressure element (9) acting by spring force, wherein the unlocking mechanism is designed to cancel the spring force of the pressure element (9) acting in the direction of the counter-holder element (8) upon actuation of the unlocking mechanism.

6. Height-adjustable load holding device according to 4, characterized in that- the clamping buckle (2) is attached to the fixed belt end (1.3) by means of a belt-fixing end pivot bearing (11) so as to be rotatable about the rotational axis of the belt-fixing end pivot bearing (11), wherein the clamping buckle (2) is folded upwards around the rotational axis of the belt-fixing end pivot bearing (11) when subjected to a downward load by the load (5) attached to the load holder (4) and rests against the load-bearing belt sling (1.1), - the release strap (3) is attached to the clamping buckle (2) in such a way that when the release strap (3) is pulled downwards, the clamping buckle (2) folds downwards by rotating about the rotational axis of the belt-fixing end pivot bearing (11), wherein - the clamping buckle (2) has a locking element (7) designed as a slide (7.2) and a counter-holding element (8) designed as a counter-holding rod (8.2), both of which are aligned parallel to the rotational axis of the belt-fixing end pivot bearing (11), - the Sleigh (7.2) is guided longitudinally displaceably between two stop positions within parallel slide guide grooves (12) provided in the clamping lock (2), - the counter-holding rod (8.2) is arranged adjacent to the stop position of the slide guide grooves (12) remote from the belt-fixing pivot bearing (11), wherein - when the clamping lock (2) is folded upwards, the belt (1) is guided around the slide (7.2) in the form of a deflection loop, wherein the belt (1) deflected around the slide (7.2) presses the slide (7.2) against the counter-holding rod (8.2) when subjected to tensile load on the belt loop side, and wherein the belt (1) is clamped in a self-locking manner between the slide (7.2) and the counter-holding rod (8.2), - when the clamping lock (2) is folded downwards, the load-bearing belt loop (1.1) holds the slide (7.2) within the slide guide grooves (12) is pushed away from the counter-holding rod (8.2) while releasing the clamp and unlocking the clamp lock (2).

7. Height-adjustable load-holding device according to claim 6, characterized in that the belt-free end (1.2) is guided parallel to the release belt (3) in such a way that a downward pull on the belt-free end (1.2) folds the clamp lock (2) downwards and unlocks it.

8. Height-adjustable load-holding device according to one of claims 4 to 7, characterized in that the locking element (7) and / or the counter-holder element (8) have a friction surface in contact with the belt (1) to increase the friction.

9. Height-adjustable load-holding device according to one of claims 1 to 8, characterized in that the belt (1) is made of a flexible, tensile material.

10. Height-adjustable load-holding device according to claim 9, characterized in that the flexible, tensile material is polyamide or polyester.

11. Height-adjustable load-holding device according to one of claims 1 to 10, characterized in thatthe clamp lock (2) is made of a metallic material or a high-strength plastic.

12. Height-adjustable load-holding device according to one of claims 1 to 11, characterized in that the load-holding device has a sensor for measuring the tension of the belt (1) and a wireless data transmission unit coupled to the sensor, wherein the data transmission unit is configured to wirelessly transmit the belt tension measurement data detected by the sensor to an external display device.

13. Height-adjustable load-holding device according to one of claims 1 to 12, characterized in that the load holding device has a remote-controlled electric motor for belt adjustment.

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