DK3110282T3

DK3110282T3 - Quick-Tying Device

Info

Publication number: DK3110282T3
Application number: DK15731653.0T
Authority: DK
Inventors: Sean Halstead
Original assignee: Sean Halstead
Priority date: 2014-02-28
Filing date: 2015-02-25
Publication date: 2019-02-04
Also published as: WO2015128720A2; DE202014001769U1; EP3110282B1; WO2015128720A3; US20160360849A1; EP3110282A2

Description

Quick-Tying Device

The invention refers to a quick damping device, preferably for the holding of objects to be fixed to each other, in particular for the holding of hair to ponytails, pigtails etc., according to the preamble of claim 1, with a flexible, simply connected pulling means formable into at least one loop, and a stop element adjustable along the free ends of the pulling means. A generic quick clamping device is known from US 3,081,781. Another quick clamping device is known from the German utility model 71 33 699. This discloses a holder for hair to ponytails, pigtails etc. and comprises a rubber band in the form of a loop to enclose the hair, as well as a holding body providing tension for the rubber band, with an opening through which both ends of the loop-shaped rubber band are led and are fixed therein frictionally engaged.

The disadvantage of that Is that the rubber band cannot be affixed durably within its opening by friction because it permanently slips through. For the same reason no raised tensions within the elastic band can be built up; as soon as the tension becomes bigger, the slide or slip movement increases, until the tension has reduced again on a moderate value.. If the opening within the hold body was further narrowed, the elastic band can be threaded on the one hand only with difficulty, and, on the other hand, deliberate, active loosening is just as difficult.

From the disadvantages of the described state of the art, the problem initiating the invention results to improve a quick clamping device, especially a self-tightening hair band, in such a way that the pulling means can be drawn quickly and simply around the objects to be fixed to each other and shall not bear any slip, but shall remain permanently tensioned. Removal of the device at a later time should be as easy as the insertion.

The solution of this problem is achieved by the features et ciaim i. especially by the fast that the pulling means is formed into two loops, and the stop element has several openings through which the pulling means is threaded.

As pulling means, elongated, flexible elements come into consideration such as, for example, cords, bands, shoelaces, etc. Especially preferred are pulling means which are not only flexible, but also elastic, such as rubber bands. Ths pulling means according to the present invention has two ends and is not closed into itself like a ring.

For the following calculations, a form of a circle should be assumed for the cross section of the pulling means with a cress section area A = π * rt. wherein r is the radius of the elastic band explains in each respective state. The length I of the pulhng means can also change as a function of the tension state.

Furthermore, the volume V of a pulling means, the length I and the cross section radius r is given to V ~ i * A ~ I * rr * rt. In the case of a tension state σ in the longitudinal direction øf the pulling means, the pulling means length changes from l5 in the relaxed state to l< in the tease state. On the other hand, the volume remains largely steady; V ~ const., must be valid: V ” Ig * π " a? ” I; * η * γ? alø* Ao ~ h * A<,

From that follows, that A·; ~ A,j * h.

The cross section arsa A is conversely proportional io the current length I. Ths

Hooks's law is valid for the length I of the elastic pulling means: F ~ D " ΔΙ ~ D * (h - i0) or: h - (F / 0) * Io, with the spring constant D.

The tractive power F is in turn a measure far the tension stress o in the longitudinal direction of the pulling means; the following formula applies: σ ~ F / A ~ D * h * (h " W / (Aj * lG) ~ (l<2 ~ h * lG) * 0 / (¼ * lG)

One recognizes from this formula that the tension σ in the longitudinal direction of the pulling means is approximately proportional to 1/, and because of the above equation, h ~ (F / D) * lG is also approximately proportional to R,

This means that with increasing tractive power F in the longitudinal direction of ths pulling means, a tension stress o scours therein which rises as a square function of the tractive power F.

Therefore, the first means for the reduction of the tension stress a within the pulling means consists of the forming this into two loops, which both encircle the hair or the ether objects to be fixed with each other. The tractive power F within each loop can be thereby halved while the same hold strength can be maintained because the hold strength of each loop is added. The tension stress o can be thereby reduced to about one quarter compared with an Instep taps with only one loop and the same Isold strength or tractive power F, Therefore, by far higher hold forces can be generated, without danger of the snatch of the draw.

Furthermore, the tractive powers compensate for themselves in the crossing between both loops, sc that no other measures are necessary for the fixation, Merely each free end of the pulling means must be held by the holder under tension. Nevertheless, the tension o is reduced to about one quarter compared with customary hair bands and other recognized holders thanks to tire second loop.

Beyond that. the holder shows two openmga for which each end of the pulling means can ba drawn through, The opening cross section can be thereby adapted optimally to the cross section of the pulling means; in particular the possibility exists to calculate the cross section of the opening a little smaller than the cross section of a single rope of the pulling means in its relaxed state Since the free ends beyond the opening are completely relaxed, they will be generally thicker, especially wrth an elastic band.

From V ~ I * A - I * π * r2» const, follows for the dimensions l0, rc. in the relaxed state and the dimensions h, η in the tense state: M h " f// r/ or: ~ Uh

From that follows by solving ΔΙ ~ i5 ~ Iq for h. as well as under use of Hooke's law: h ~

Iq * ΔΙ " 1$ * F / D an easy formula for p. Used this delivers: U = V Os / (U * F / Dlf.

With a tension stress o ” 0, according to the preliminary calculations it follows F ~ 0. and hence, the above formula dekvers for the relaxed state again r, " r<>

The relaxed end of the pulling means can widen behind the opening and spreads itself therefore against the inside edge of the opening and gets jammed there. An inadvertent slipping through the opening Is virtually excluded. if the tension o > 0 then it follows that F > 0} and from the formula above rt < r«. That means the radius r of the pulling means decreases and at some point the pulling means starts to slide through the related opening, namely when the tractive power F becomes bigger than the frictional strength R, Therefore: F £ R.

This limit is reached at the latest when η < r>>; where rt; is the radius of the opening to draw the pulling means through one time.

If, nevertheless, a cross section r.q of the pulling means is bigger than ty, the threaded state of the pulling means requires an elastic distortion of the pulling means fur the difference Ar ·» r,~ - rh.

Alsu In this case Hanke's law is vahd. From it follows:

Ar ~ N / D or N - Ar * D

The pulling means on the inside of the opening exerting a normal strength N which causes again a frictional force R = R N according to the frictional value μ. This frictional force R corresponds to the maximum tractive power within the pulling means which can be stabilized by the stop element.

Ths maximum value which one can use for r<. is Co, the thickest area of the palling means in the relaxed state. This originates above ail in the area beyond a narrowing of the passageway cross section with the smallest clearance. Behind that area the tension of the pulling means reduces until the value F ~ 0. There the strangest frictional force R is generated.

Ths normal strength N arid therefore the frictional strength R are generated in this Invention along a line-shaped area, along which Ar ~ rG - n, » Arf>>&i:, This area applies along the internal edge of the concerned opening. if s is an incremental stretch along this edge, then in a general case Ar could be a function of s: Ar ~ Ar(s). Then the following ss vahd: N ~ N(s) ~ D * Ar(s).

If the pulhng means is elastic, it can nestle up to the edge of the opening optimally, so that along the complete periphery an infinitesimal normal strength dNfs) and therefore an infinitesimal frictionai strength dR(s) ~ μ " dN(s) ~ μ * D * dAr(s) is generated. The total frictional strength R results by integration along the periphery line: p p R - μ * D * f Aris) ds - μ * D * j [rQ (s) - a, (s)] ds 0 0

With this invention rq(s) ~ rq ~ const, as well as n,(s) ~ rh- const, and therefore also Arfa} ~ ~ const is valid thanks to the circular cross sections of the pulling means and the end-sided opening. The integration simplifies itself to R ~ μ * D * - gj * U " μ * Ο s (γ^ - rh) * 2 π * r?v

This ;s at the same time also the maximum tractive power F within the pulling means which can be stabilized by the frictional strength R,

Therefore, with the invention the complete edge of the opening contributes to the frictional strength R.

With the previously mentioned existing design according io the DE 71 33 699 U, this area is by far shorter because both ends of the pulling means are threaded together through one single opening. The pulling means also has generally a round cross section end a opening by ths process of the drilling. Therefore, each end of the pulling means lies at best only on half of ths edge of the opening; though the remaining extent of a pullfog means rope is also compressed in the ideal case; nevertheless, from if no- hold strength can result because the segment adjoining to it is just the ether rope which Itself threatens to slip nut from the opening and therefore cannot take up axial force. Additionally, the infinitesimal hold strength ΔΓ cannot be achieved because a real pulling means does not have the cress section of a semicircle and therefore the available space is not utilized. Practically only about one quarter of the available area can actually be used. Hence, with the existing design, valid is approximately: R ~ μ * D * - rK) * % * LI ~ p * D * - rh)4 % * rr * rh.

Therefore, the controllable tractive power F within the pulling means with this invention is at least fourfold that of the existing design. A further advantage is that even if a rope end slips - what is rather unlikely according to the Invention - the other respective rope end is not affected at ail. One thereby has. so to speak, a redundancy which provides that the bunch of hair or other objects cannot loosen. By contrast the existing design according to DE 71 33 693 U, both rope ends are lad together through the same opening ano are hence connected frioticnaliy with each other. Hence, in that case both rope ends slip cut of the opening together.

It has shown to be favorable that the area between the loops of the pulling means is ted through the stop element at least once. in the sense of this invention it is advantageous that, at least when under tension stress, the pulling means is not directed perpendicular to the through hole in the stop element; additionally, the friction coefficient μ between the pulling means and ths inside edge of the openmg should be as high as possible.

Furthermore, the invention intends that in the area between the two loops and/or in the middle area where the pulling means is fed through the step element, the pulling means extends somewhat parallel to the surface area of the step element there. Then the pulling means will even in the portion under tension of the free end follow a similar course, that means it will run obliquely with regard to the stop element and nut perpendicularly to that. Thereby, due to the virtual, elliptical deformation mentioned above, the normal force IM and the frictionalal forse R as well will increase substantially.

Further advantages arise from the fact that the pulling means is ted through the stop element at least three or four times. This bigger number of threadings leads to an Intimate connection of both parts with each other, and therefore quite substantially reduces the danger of slipping.

According to the invention, the stop element shows at least one central through -hale for feeding the middle portion of the pulling means between both loops- through. There the middle portion of the pulling means is connected to ths stop element and is fixed to it frictionally. At the state of the art, ths middle portion of the pulling means is neither encompassed by the stop element nor fixed frictionally.

Furthermore, the stop element according to the invention comprises at least one through-hole at each side section for separately threading a respective end of the pulling means through. These are the openings that hold the pulling means under tension with substantial frictional strength.

An advantageous feature of the invention is that, two strings of the pulling means are never led together through the same opening of the stop element.

If only one single string of the pulling means is ted through an opening of the stop element, the cross section of the opening can be easily adapted to the corresponding cross section of the pulling means, in particular if both show circular cross sections. According to the invention, the entire cross section of such an opening is thereby completely filled by the pulling means.

It lies within the scope of the invention that the step element is only positively or frictionaHy connected to the pulling means, but not integrated with that. Thereby, a production from different materials is passible, whereby ths pulkng means is flexible and preferably elastic, while the atop element may he form-stable and/or harp.

Preferably, the stop element has the shape of an elongated and/or planar or flat body. Thereby, the stop element can be reduced to a geometrical minimum to save material, and. in particular also to save weight which will improve the comfort level especially by use as a hair tie

The surface of a flat or two-dimensional stop element can bn curved in the arsa of the middle opening. Therewith, the stop element is enabled to approximately take on the shape of the hair or things to be bald together and to complement the course of the pulling means.

According to the invention, a bridge is provided in the area of a middle opening to separate two mouths from each other, Such a bridge nan already originate from the fact that two openings lie near each ether and the material between them defines the bridge. However, this bridge can also project out from the surface of the stop element, in particular, on that side of the stop element which faces the hair to be bundled together. In this respect, a bridge with a bigger cross section can be created than a bridge defined by two openings through a level part would have. This is advantageous, because at this site, the force components directed approximately perpendicular to the surface of te slop element of both strings extending from the middle portion of the pulling means add together and thereby become more intense,

Wdhin the scope of a first embodiment, the previously described bridge is within the surface of the stop element and thereby separates two middle openings completely fmm each other, which comprise two mouths on each side or, respectively, on each main surface of the stop element, so altogether four mouths. Such an embodiment could be formed of a sheet-like metall part by stamping and. if necessary, bending, that is by a pure cold forming.

Another embodiment is characterized by the fact that the bridge ss beyond the surface of the stop element and delimits the middle opening, so that this shows two mouths on the same side of the surface of the stop element.

At the recently described embodiment. the bridge is preferably translocated towards the inner side of ths stop element, meaning towards that of its both main surfaces which faces the loops. Sy wrapping under this bridge, the course of the pulling means can run along the inner side of the stop element which results in a nearly unchanged curvature radius of its course.

The invention can be further improved in that the continuous middle opening extends exclusively between the bridge and the body of the holder so that the bridge is not visible from the outside and no opening is visible in the body of the holder from the outside. Among other things, this can generate an especially elegant aesthetic because the internal functionality of the invention is not discernible in detail from the outside and, moreover, the fiat outside would not be interrupted. Therewith, the outside surface could be used for decoration, for example by use of a gemstone or of another application or beautification.

Nevertheless, it is also possible that the continuous middle opening does not extend exclusively between the bridge and the body of the stop element, but also through the body of the stop element, so that the middle opening shows two mouths on the inside and one mouth on the outside. In such a case, the threading of the pulling means through ths middle opening is perhaps easier. Therewith it can be considered that in the area of such a middle opening, at least regarding the tangential feme component, an equilibrium exists between ths two strands or loops. Therefore a clamping ar holding of the pulling means in this area is not necessary for the function of the device.

Furthermore, the invention provides that both end openings, each of which receives one strand of the pulling means, are opposing each other diametrically with regard to the middle opening. Thereby, a crossing of the ends of toe pulling means is avoided in the area of the stop element, Each of the two loops wraps around the hair or Items to be fixed to each other, whereby each loop does not extend over a center angle c of 3606 but already ends at an angle of ο < 3606 for example at a s 355*. preferably at a £ 351)6 In particular at a < 346*.

Because the quick clamping device according to the invention shows two loops, the hair or other items to be fixed to each other will be encompassed at a total angle of β - 2o; however smaller than 720*. for example β < 7106 preferably β < 7()() 6 in particular β s 690 On the other hand, the angle related to the center of the two loops is more than β > 546'6 for example β > 630*, chiefly β a 8606 in particular β a 675'6

Another characteristic of the invention is that both openings in the side sections are equidistant from the middle opening. This provides a symmetry aspect that may prove advantageous in production as well as more aesthetic.

According to the invention, both and openings and the middle opening lie on a common line, which clings to the curved surface of the stop element, but apart from that runs straight. Therefore, with the same tension stress in both loops, all forces in the sides of the stop element are symmetrical and remain balanced In relation with the middle opening as the center. Therefrom, a perfect fit of the clamping device according to the invention results, which recommends it as a beautiful design element. On the other hand, the outer side thereof averted from the loops can be used as an information medium for arranging small messages thereon, for example little hearts as a symbol for fellowship, shamrocks for luck or the name of the user.

According to the artisticai trend fo minimalism, the stop element can have an elongated shape that runs mainly in parallel with the center line through the three openings. A filigree design can underline the easy effect, of the invention aesthetically: moreover, material can thereby be saved, which provides the opportunity to use a higher worth material as silver or the like for the step element.

The inventton can he improved further in that the end portions of the stop element which each show one of two openings are planar and He within a common surface. Therewith, the pulling means is freed from the need to kink at nearly 90 \ as Is necessaryf in the existing design according to DE 71 33 699 U and in that case aven welcome to increase the frictional strength. As due to the inventton, the holding force of the stop element results from other factors, the ends nan be designed so as In protect the pulling means from constant kinking. Therefore a relatively long term solution is provided for a durable and somewhat higher value jewelry like product. A curved middle section of the stop element can transition into the aligned end portions via a kink or bend. With that the holder has three sections that each contains a through-hole for the pulling means.

The invention recommends the use of an elastic material for the pulling means. This can be stretched moderately to a desired, freely selectable tension stress which in turn provides the desired holding power of the quick clamping device. Moreover, a radial pulling means provides the strongest holding power according to ths invention because it will be radially compressed in the two end openings thus resulting in high contact pressure against the edge of the opening, resulting in a high fricttonai strength. A radial compressibility may not be synonymous 'with elasticity but toe properties of the latter work in addition for the operation of the invention.

As an additional security, the pulling means can have a knot at one or both ends. Therewith, an inadvertent entire slipping of the band out of an end opening is eliminated even at an inappropriate use.

Finally, it is within the scope of the invention, that a stop is with a through-opening is pushed onto the pulling means in the area between each of both knots and the stop element, whereby the inner diameter of the through-opening is preferably smaller than the diameter of a knot ot the pulling means. These stops could act as counter elements co the strings of the pulling means against the regarding adjacent end knot for a fixation and for avoiding a releasing thereof. At the same time, this is thought to be a good opportunity to make a more eye pteasing device through the use of decorative stop elements. The preferred shape is spherical, so that, for example, the use of a pearl could ba passible.

Further features, details, advantages and affects on the base of ths invention arise from the following description of a preferential embodiment of the invention as well as from of the drawing, which shows;

Fig, Ί a quick clamping device according to the invention from a first perspective:

Fig. 2 the quick damping device shown in Fig. 1 from a second perspective: as well as

Fig. 3 a section view through the quick clamping device shown In Figs. 1 and 2, partially broken.

The quick damping device 1 according to the invention shown in the drawing consists of a total of four parts: an elongated pulling means 2, a stop element 3 functionally completing the former, and two end stops 4..

The pulling means 2 extends through openings 5, 6, 7 in the stop element 3 and in the end stops 4. While the end stops 4 are expendable in some circumstances, the pulling means 2 and the slop element 3 are essential for the function.

As a pulling means 2, a simple, flexible elastic material is used in the shown embodiment. An elastic material is preferred although not just for its elasticity in the longitudinal direction, but also for its elasticity in the crosswise direction. This requirement is fulfilled for example with a rubber band. Less suitable - even if imaginable - is in general a spiral tension spring because those are barely able to adjust elastically to the openings 5, 6 and 7 of the stop element 3 er the end stops 4, Better suitable would be a flexible band similar to a shoelace, because that seems to be compressible in its cross section,

The pulling means 2 has preferably a circular cress section with a radius sy and a length l0[ at least in the relaxed state of the pulling means 2.

From it, two loops are later formed, If each of these loops had a circumference of LA, ~ 2τΓΓ§: a maximum loop radius rs ~ lG / is calculated from it.

Preferably, the pulling means 2 shows a knot 9 at each of both ends 8.

The stop element 3 shown in the drawing can be made of a molten material, especially set in a regarding mold. Therefor plastic could be used for example, but on the other hand, it could also be made from a metallic material. With a low melting point like, for example, tin,

Ona the other hand, the stop element 3 could be manufactured from a sheet especially from a metal sheet like copper, because the stop element 3 has a predominantly flat shape with a constant thickness.

Ona can observe that the shape is generally rectangular with a constant thickness. This rectangular form has a pronounced elongated shape; for example with a length equal to or more than three times the width, preferably equal to or mure than four hmes the width, in particular equal to or mors than 5 times the width.

This elongated rectangle is divided into three segments which line up themselves in a longitudinal direction one after the other: A middle section 10 is flanked by two side sections 11. Currently, both side sections are the same in size and the middle section 10 is larger than the side sections 11.

Both side parts 11 are mainly fiat and are aligned with each other, The middle section 10 however can be curved, namely with a steady curvature radius m ~ p - u / 4 n.

On account of the steady thickness of the stop element 3, the curvature of the middle section 10 has a concave arched inner side 12 and a convex arched outer side 13

In each of both side sections 11 is a through-opening 5, preferred with a circular cross section with a radius of rq. A design regulation to be followed says that the radius ro is smaller than the radius re of the relaxed (unstretched), but also not compressed pulling means 2: rø <ρ·. This provides a relationship of n> / ry to > 1, possibly rc / rø< 0.9: for example r0 / r5 < 0,8, preferably r0 / n-< 0.7. in particular ro / r$< 0,6, The pulling means 2 is therefore forced to regenerate in the area of its passing through the end openings 5. it does this by summoning an elastic counterforce in an outwardly direction, approximately perpendicular to the edge of the opening 5 which accordingly entails a frictional feme.

The middle section 10 also shows a passageway opening 6. This is crossed by a bridge 14 on the inner side 12 of the stop element 3, This bridge 14 preferably extends crosswise to the length of the stop element 3.

Preferab!y; the opening 6 extends also into the bridge 14 which results in an arc shape for the bridge 14. The ends of the bridge 14 connect to the inside 12 of the stop element 3.. specifically above and below the opening 6, As shown in Fig. 3, the cross section of the opening β between the bridge 14 and ths inner side 12 is so large that in the relaxed state, the pulling means 2 can pass through unhindered

Both end stops 4 have mainly a spherical shape, although this la not a requirement because the outside shape is primarily aesthetic. They each have an opening 7. preferably through the center.

Preferentially, the cross section of the through-opening 7 is also circular, with a radius rA < rq. A recommended ratio is rA Z r$. rA / rs < 1, possibly rA / sy < (1,9, for example rA / r$ < 0.8. preferably rA / < 0,7, in particular rA / 0.0.

Through such a small sized radius rA, a stop 4 can be fixed in the desired position on the pulling means 2. Should this be directly next to a knot 9, it can act as a counter element stabilizing the knot 9 and preventing the knot 9 from opening.

The pulling means 2 is threaded before preparing of the knots 9. This can occur first through the middle opening 6 of the stop element 3. Then, each of the ends 8 is threaded through the openings 5 in the side sections 11 and through the openings 7 of each stop element. Finally a knot is made close to the end of each of the pulling means ends 8, With that the manufacture is concluded, and the finished quick clamping device 1 can be packed for sale.

In use, the stop element 3 is shifted outwards with respect to the pulling means 2. until the stops 4 abut against the side parts '11 of the stop efement 3 directly. Between the middle opening 6 asnd each of the outer openings 5. the pulling means 2 forms a loop 15 These two loops 15 have approximately the same size as shown in Fig 2. A maximum loop size is achieved by moving the stop element 3 until it rests against the ends 8 of the pulling means 2.

The bunch uf hair or other objects to be held together by the quick clamping device 1 are then fed through the loops 15.

Now one needs only to pull at both stops 4. This can be done with a single hand which grasps both stops 4 for pulling an them, while the other hand is free to hold the pony tail ar the other objects in place.

Fur easiest removal of the quick clamping device 1, one could pinch the stop element 3 in the middle with two fingers and dislodges it (rum the bunch of hair or from the other encompassed objects under tensioning of both loops 15, until the tensioned pulling means 2 slips through the openings 5 due to a oross-sectmnal reduction caused by its tension.

Reference het 1 quick clamping device 2 pulling means 3 stop element 4 end stop 5 opening 6 opening 7 opening 8 end S knot 10 middle porhon 11 side portion 12 inner side 13 outer side 14 bridge 1 § loop

Claims

New patent requirements

Fast clamping device (i), preferably for assembling objects to be fastened with the lunand. in particular ten) assembly wipe dl braids, ponytails or the like, with an OeksibelL as a minimum of a pull nut (2) which can be formed into a loop (15) and an adjustable stop element (3) along the free ends of the pulling means (2) (8) , wherein the pulling means (2) is formed into two loops (15), both of which enclose the material to be fastened in the same way, and in which a single tone element (3) has several openings (5, b) for lead the pulling means (2) through, characterized in that the stop element (3) a) has at least one through-middle opening (6) for passing the middle area between the two loops (15) of the pulling means (2), where in the area at the central opening ( 6) is an eyelet (14) which separates two orifices from each other; and b) at least one through-going end opening (5) td separately passing through each of the two ends (8k) of the pulling means (2) where the two openings in the ends (5) with respect to the middle opening (6) are diametrically opposite each other and with respect to to their respective opening cross-section is slightly smaller than the cross-section of a single of Lrækmldlcts (2) strings when not tightened.

Fast clamping device (1) according to claim 1, characterized in that all the area between the two loops (15) of the traction means (2) is fast through the stop element (3) at least once.

Rapid clamping device (i) according to claim 1 or 2, characterized in that the pulling means (2) in the area between the two loops (15) and / or in the area where it is formed through the stop element (3) is shit approximately parallel lelt with an overload area (12) this place on the stop member (3).

Fast clamping device in l) according to one of Claims 1 to 3, characterized in that the traction means (2) travels at least three or four times through the step element (3).

Fast clamping device {Π according to one of the preceding claims, characterized in that two cords in the traction means (2) are never passed through the same opening (5.6) in the stop tube (3) at the same time.

6. Quick clamping device (I) According to el of the preceding claims, characterized in that the stop element (3) is connected exclusively to the fitting or friction end with the traction medium (2). but is not integrated with it.

Quick clamping device (1) according to one of the preceding claims, characterized in that the snap element (3) has the shape of a flat or flat body. where the surface of the stop element (3) in the region vt'J nmlterålnfoigLU (6} is preferably curved.

8. Fast spam handling (I) ibt. one of the preceding claims, characterized in that the spoke (14) is either located within the surface of the stop element (3) and thus completely delimits two central openings which, on both sides (12.13} of the surface, bore a total of no mouths, i.e. $, in al i fl rc orifices., or is located outside the surface of the stop element (3) and possibly this place crosses a rnidter opening.g (6) so that it has two orifices on the same side (12) of the surface of the stop element (3) .

Quick clamping device (1) according to one of the preceding claims, characterized in that all the through-central opening <6} either extends exclusively between the eyelet (14} and the planar body of the stop element (3), so that the body of the stop element (3) does not have a through opening (6) from the side (12) facing the eyelet (14) to the opposite side (13) facing the eyelet (14) or not extending exclusively between the eyelet (14) and the planar body of the stop element (3), but also through the body of the stop element (3), so that the middle opening (6) has two mouths on the side (12) facing the eyelet (14) and mouth on the side (13) facing drill from the eyelet (14).

Rapid tensioning conduction (Π according to one of the preceding claims, characterized in that the two openings at the ends (5) from the central opening (6) have the same distances and / or lie together with the central opening (6) on a single line, sorn sneaks up on the stop element (3) possibly curved oxerfl tde f 12.1?}. but s <> m diets ha · 'et straight course,

Rapid spamming device (1) according to one of the preceding claims, characterized in that the stop element (3) is elongate, the longitudinal extension of which preferably has a parallel course with the lirtie connecting the three openings (5.6).

Fast spanid canorduing (1) according to one of the preceding claims, characterized in that the end regions (11) of the stop element (3), both of which have one of the two openings in the ends (5), are flat and lie within a common level.

13. Fast buckle ^ north (!) In hi. one of do previous kmv, characterized by, al el curved area C10) in the middle of the casting element (3) via a bend or an arc passes into the planar end areas (1 i?, which align with each other.

Rapid tensioning device (I) according to one of the preceding claims, characterized in that the traction means (2) is an elastic band.

Fast clamping device (1) according to one of the preceding claims, characterized in that all the pulling means (2} have a knot. (9) has one end at both ends (S), and preferably in the area between each of the two knots (9) and the sloping member (3) is pushed into a stop member (4) with at least one through-opening (7), the inner diameter of through-opening (7) therein preferably being less than a knot (9) on the thinning means (2),