奥地利专利AT510451A1 CLAMPING DEVICE FOR A SLIDING CHAIN

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专利摘要:
In a tensioning device for an anti-skid chain, a winding wheel (3) is rotatably supported within the housing (2) about its axis and biased in the winding direction and has a ring gear (31) with a toothing (33) arranged along its circumference. A tensioning strand (10) which can be retracted into the housing can be connected to the winding wheel (3), wherein a pawl (6) in a first position (A) reverses the winding wheel in the clamping direction by engaging the pawl (6) in the toothing (33 ) on the circumference of the sprocket (31) of the winding wheel alternate areas (30) which are free of a toothing, with areas with serrations (33) with at least one circumferentially recessed tooth space.
公开号:AT510451A1
申请号:T1714/2010
申请日:2010-10-14
公开日:2012-04-15
发明作者:
申请人:Pewag Schneeketten Gmbh & Co Kg；
IPC主号:

专利说明:

P11881
Clamping device for an anti-skid chain
The invention relates to a tensioning device for a skid, with a housing, a winding wheel and a pawl associated therewith; while the winding wheel is rotatably mounted within the housing about its axis and biased in the winding direction; it has a sprocket with a toothing arranged along its circumference; a retractable by a housing opening into the housing tensioning strand is connected to the winding wheel, wherein the pawl blocks in a first position, a rotational movement of the winding wheel in the clamping direction by engagement of the pawl in the toothing of the ring gear,
Clamping devices are used in anti-skid chains, in particular snow chains, in order to avoid unwanted unwinding of the tensioning line after installation. The tension cord is usually a tensioning cable, but may also be e.g. be designed as a tensioning chain. The economizers considered here are primarily used in trucks or heavy vehicles, but are generally applicable to any type of wheeled vehicle.
The Applicant's EP 1 935 674 A1 shows a tensioning device of the type mentioned at the outset. A tensioning strand which can be retracted into the housing through a housing opening is connected inside the housing to a winding roll prestressed in the winding direction and rotatably mounted about its axis. The winding roll has a rotatably connected toothed ring, in which a pawl engages and, depending on the position of the pawl blocks the movement of the ring gear either in the winding or in the opposite direction.
These tensioners have been found to cause damage to the anti-skid chain on the vehicle wheel when the chain is mounted too tightly on the wheel. For example, when the anti-skid chain travels around the wheel - especially at higher speeds - this movement of a tight-fitting chain can cause chafing and damage to the tire. This is particularly the case with the tires of trucks, where, because of the larger dimensions and heavier weight of the tires and the heavier load, these problems are much more pronounced compared to car anti-skid / snow chains. On the other hand, the chain should be kept in the mounted state on the wheel with a certain force, so that the chain sits well on the wheel and can not slip sideways. -2-
It is therefore an object of the invention to provide a clamping device which overcomes the disadvantages mentioned. In particular, a certain play in the tightening of the chain should be made possible.
The object is achieved by a clamping device of the type mentioned, in which according to the invention on the circumference of the sprocket of the winding wheel at least one region is formed, which is free of teeth and lies between subsequent toothings.
This solution fulfills the task in a simple yet effective way. Due to the zahnungsfreien sections, the winding wheel can yield even in the blocking state by a certain amount, which corresponds approximately to the length of the section. Once the pawl reaches a toothed portion in the course of this yielding, further rotation of the winding wheel and thus further yielding in the tensioning direction is blocked. As a result, the anti-skid chain can be tensioned in larger increments than would correspond to a single tooth pitch. In this way, there is an increased clearance when tensioning the chain, and it is ensured that the anti-skid chain sits sufficiently loose on the tire without causing damage. In addition, the slight sagging of the chain gives a self-cleaning effect against dirt by mud, snow or the like. due to the mobility of the chain.
In an advantageous development of the invention, toothed and toothing-free regions alternate, so that the toothed rim has on its periphery at least two toothing-free regions - e.g. three, four, five or six - that separate an equal number of areas, each having a constant number of tooth pitches.
In order to allow easy unlocking of the rope blocking during assembly of the anti-skid chain, an externally accessible actuator may be provided which acts via an arm on the pawl, wherein the arm of the actuator is coupled via an articulated connection with the pawl. This allows a movement of the pawl between the first position in which it blocks a rotational movement of the winding wheel in the tensioning direction, and a second position in which this movement is released. In this case, the arm may extend outside the winding wheel along a direction extending around the winding wheel and (seen in the direction of the axis of the winding wheel) may be arranged below the pawl. The articulated connection is e.g. a spigot joint formed by an aperture and a pin engaging in said aperture provided on the arm and the pawl, respectively. PI 1881 -3-
Alternatively, the actuator may have on an inner side two stop surfaces which cooperate with an arm of the pawl which is located between the two stop surfaces and is tiltable depending on the movement of the actuator of the stop surfaces, as a result of this tilting movement, the pawl between the first position and the second position (wherein the movement in the tensioning direction is blocked or released) is movable.
To further simplify the assembly, the second position of the pawl can block excessive retraction of the tension cord by the pawl also acts on the sprocket in the second position, but blocks a rotational movement of the winding wheel in the winding by engaging the pawl in the teeth.
In addition, a damping device may be provided, which has a gearwheel geared to the winding wheel, which opposes its rotation, at least in a winding direction of the winding wheel corresponding direction, a braking effect, wherein the wheel element is preferably a gear that with a gear rim, in particular internal ring gear, the winding wheel cooperates.
Moreover, it is favorable if the tensioning device is provided with retaining elements arranged on the housing, in particular hooks; With these fasteners, the tensioning device can be fixed immovably to an outer strand of the anti-skid chain. The use of hooks also facilitates the attachment by the chuck can be easily hung on chain links of the outer strand.
The invention together with its advantages and advantageous embodiments will be explained in more detail below with reference to non-limiting exemplary embodiments of tensioning devices according to the invention, which are provided in an antiskid chain for e.g. Trucks are used and shown in the accompanying drawings. The figures show
1 shows a clamping device according to a first embodiment in the opened state (namely with the cover removed) in the first blocking position,
FIG. 2 shows the opened clamping device of FIG. 1 in the second blocking position, FIG.
3, the tensioning device of FIG. 1 in an exploded view,
4 is a detail view of the pawl and the operating knob of the tensioning device of FIGS. 1 and 3,
5 is a view of the pawl of FIG. 4, the outer side, Γ11881 • k * · -4-
6 is an illustration of a tire-mounted anti-skid chain with the tensioner of the embodiment;
Fig. 7a and Tb are each a perspective view and a side view of the Ümienkhakens the anti-skid chain of Fig. 6, and
8a and 8b each show a perspective view and a side view of a guide hook of the anti-skid chain of Fig. 6,
9 is a clamping device according to a second embodiment in the opened state in the first blocking position,
10 the tensioning device of FIG. 9 in an exploded view, FIG.
11a and 11b, the pawl of the tensioning device of FIGS. 9 and 10 in a respective view of the inner and the outer side
Fig. 12, the first blocking position of the tensioning device of Figs. 9 and 10, illustrated by the interaction pawl and angle wheel, and
13 shows the second blocking position of the clamping device of FIGS. 9 and 10 in a representation analogous to FIG. 12.
An anti-skid chain 101, which operates with a tensioning device 102 according to the embodiments discussed below, is shown in FIG. 6 in a hooped state on a tire 100. The track crosses 103 of the chain 101 are bounded and held laterally by an outer chain 104. To secure the chain 101 after mounting on the tire, the outer chain 104 is closed at its ends using a tensioning cable 10. The tensioning cable 10 is attached to a first end, the end piece 105, at one end of the outer chain 104, for example, mounted on an end ring 106 of the outer chain; a second end of the tensioning cable 10 is held in the tensioning device 102, which in turn is secured to the outer chain 104, typically in an area opposite the end of the outer chain on the tire. The tensioning cable 10 is typically a steel cable, but it may be implemented in sections as a chain; e.g. For example, the end portion 105 of the tensioning cable may be formed as a chain with an end hook (not shown), the end hook being suspended in the end ring 106 of the outer chain. The tensioning cable 10 is used for contraction of the outer chain 104. For this purpose, a deflection hook 107 is provided on the end piece 105 of the tensioning cable while the tensioning cable 10 is connected with the aid of a few guide rings 108 to the sections of the outer strand lying in front of the end ring 106 (and at the same time guided around the wheel center). is. The latter is used to close the chain 101 on the tire, which is achieved by hooking the Umlenkhakens at the opposite end 109 of the outer chain, such as on a chain link or preferably ring. Through the PI1881 -5-
Pull action of the tensioning device 1, the ends of the outer strand are drawn to each other, whereby the chain 1U1 is spread in the desired manner on the tire surface and the track marks 103 are deployed on the tire tread.
The tensioning cable 10 serves to contract the outer chain 104 and tension the chain 101 on the tire 100 immediately after the chain has been pulled up. For this purpose, the tensioning cable 10 is connected by means of a few guide rings 108 to the front of the end ring 106 lying portions of the outer strand and thus guided around the wheel center, and on the end portion 105 of the tensioning cable Umlenkhaken 107 is provided.
FIGS. 7 a and 7 b illustrate, by way of example, an embodiment of the deflection hook 107, with which the tensioning cable 10 is coupled to the opposite end 109 of the outer chain 104. The deflection hook 107 is e.g. formed as a one-piece component of glass fiber reinforced plastic and has an annular body 110 with an eye through which the tensioning cable is guided, and arranged on the body 110 hook portion 111, with the Umlenkhaken 107 can be suspended in the outer chain end 109. At the base of the hook portion 111 is a projection 112, e.g. in the form of a flat nose, provided. This causes the ring (or chain link) on which the hook is suspended to snap into the hook portion 111 and prevents the deflecting hook 107 from disengaging from the end 109 should the tension through the tensioning cable be relieved.
8a and 8b illustrate by way of example an embodiment of the guide rings 108. An eye is formed in an annular body 113 of the guide ring 108 through which the tensioning cable is guided, and a hook element 114 arranged on the annular body 113 makes it possible to hook on the outer strand 104 (see FIG. 6). The guide ring 108 is preferably formed as a one-piece component of glass fiber reinforced plastic.
An overview of the structure of a tensioning device 1 according to a first embodiment is shown in FIGS. 1 to 3. The tensioning device 1 has a housing, which is formed for example of two parts, namely a housing bottom 2 and a cover 8 - the latter being removed in FIGS. 1 and 2 to show the arrangement of the inner components. The housing parts 2 and 8 are for example by rivets (not shown) firmly connected. On the housing, here on the bottom part 2, holding elements are provided, e.g. in the form of hooks 21, which may be integrally formed with the housing in the embodiments shown, by means of the hook 21, the clamping device as already mentioned on an outer chain (or possibly other part) of the anti-skid chain are attached, usually by directly hooking the Hooks in chain links of the outer chain, which allows a non-displaceable, yet releasable attachment. The hooks 21 are advantageously oriented towards the same side of the tensioning device 1 (here, for example, forward) to facilitate hooking into the chain. For example, a respective hook 21 is formed on the upper narrow side of the two wing parts of the tensioning device 1. The already mentioned tensioning cable 10 extends through an opening 22 in the housing; the part of the tensioning cable 10 located inside the tensioning device 1 is rolled up on a winding wheel 3. The opening 22 may be reinforced by a sleeve 20, in order to prevent wear by the tensioning cable, here formed by two sleeve halves. The protruding from the jig part of the tensioning cable 10 is shown symbolically in Figure 1, while the wound part is hidden under the upper edge of the winding wheel. in Fig. 2 and 3, the tensioning cable is not shown.
In the illustration of the tensioning device 1 with the cover removed, as shown in FIGS. 1 and 2, the winding wheel 3 with a toothed rim 31, which in the embodiment shown is "front-side", is immediately accessible. (i.e., on the side of the winding wheel facing the observer in this illustration), and a pawl 6 cooperating with the ring gear can be seen. By means of an actuator 5, which can be actuated via a knob 51 made of another opening of the housing, it is possible to determine, as required, in which desired direction the tensioning cable 10 is released, while at the same time blocking movement in the opposite direction. Thus, in Fig. 1 that position A ("Fahrbetriebsstellung") shown in which the tensioning cable 10 can be retracted, while pulling out of the rope (corresponding to a rotation of the winding wheel in the tensioning direction) is blocked and can be done only over a small length thereof ; this position is used during operation of the anti-skid chain 101 as shown in FIG. Fig. 2, however, shows the position B ("mounting position"), in which the tensioning cable 10 can be pulled out, while a retraction (winding) of the rope is blocked and can only take place over a small length. This mounting position is used when mounting the anti-skid chain 101 on a tire 100 to allow the necessary length of tensioning cable to be selected and not to be constantly held against the bias of the winding wheel during wheel placement.
As can be seen in Fig. 3, the winding wheel 3 has a body 32 which serves as a pulley for winding the tensioning cable 10, and a non-rotatably connected with this ring gear 31, which has a detail further explained below toothing 33. The pulley 32 is biased in the winding direction with a spring 4, which is fastened on the one hand to a center pin 23 of the housing base 2 and on the other hand to the pulley (hooked into a recess 40 in the inside of the pulley 32). The spring 4 is for example a spiral spring and is shown simplified in the drawings. PI 1881 * * * * -7-
Referring again to Figs. 1 and 2, a pawl 6 is disposed in the housing adjacent to the sprocket 31 in one of the two wing portions of the tensioning device. The pawl 6 is rotatably mounted within the housing about a guide sleeve 7 which is fixed between the housing parts 2 and 8. The pawl 6 has two positions A, B, which, as already mentioned, each correspond to a blocking position and are adjustable with the actuating member 5. In each position, the latch can assume an end position in which the pawl engages in each of the teeth 33 of the ring gear 31; In this case, the toothing acts via tooth flanks of one type (namely in FIG. 1 with the clockwise oriented flanks, in FIG. 2 those counterclockwise) via one or more flank surfaces 61, 62, 63 (FIG. 4) corresponding to the tooth flank the outside of the latch together. By means of the pawl 6, the direction is determined in which the pulley is movable while it locks in the opposite direction. Both flanks of the teeth of the ring gear 31 are used for selectively inhibiting the cable movement. For this purpose, the teeth can be symmetrical, as in the embodiments shown, which additionally simplifies the construction.
The pawl advantageously has two or more ramp surfaces 61, 62 which are used in blocking the withdrawal of the rope. In this case, each ramp surface interacts with one tooth flank of the ring gear 31 in each case. The use of two or more ramp surfaces in the driving position increases the area over which a power transmission can take place and results in a better distribution of the forces acting. This increases the reliability of the clamping device during use.
The pawl 6 is held in the respective position A, B by a resilient retaining element 67. This holding element at the same time provides the necessary clearance of the pawl 6 to allow the movement of the ring gear in the approved direction. For example, a spring (for example a spiral spring) is provided as the retaining element 67, by means of which a ball 68 is pressed against the rear side of the pawl 6. There are two recesses 64, 65 (Fig. 5), each corresponding to a position A, B. By means of the actuator 5, the pawl 6 can be switched between these two positions.
During the movement of the tensioning cable in the permitted direction, the sprocket 31 at each tooth position raises respectively the engaging ramp surface (s) 61, 62, 63 of the pawl 6, which upon further rotation of the sprocket 31 as soon as the next tooth space is reached, in this springs back by the spring force of the retaining element 67. In the opposite direction, however, the movement is self-locking blocked, because the ring gear over the respective (c) support edge (s) on the opposite surface of the pawl is supported, thus inhibiting the movement. -8th-
According to the invention, the ring gear 31 of the winding wheel 3 does not have a toothing on its entire circumference, but only in one or more peripheral portions 33. In this case, toothing means a structuring of the circumference by teeth or tooth spaces. In the context of this disclosure, tooth is understood to mean a structure projecting outwards (ie away from the center of the winding wheel), each having an edge oriented in the winding direction and in the tensioning direction, and a tooth space having an inwardly recessed structure (ie towards the center) a flank oriented in the winding direction and in the tensioning direction; two directly adjacent teeth each form a tooth space with their mutually facing halves, and vice versa. A tooth or a tooth space forms in each case a unit of the toothing ("tooth pitch").
In at least one other peripheral portion 30, the sprocket is free of toothing, i. it is there without a circumferentially extending structure ("smooth" or "toothless"; this does not preclude structuring parallel to the axis). For example, in the embodiment shown, four sections 33 are provided with teeth that are separated by four "smooth" ones. Sections 30 are separated. The sections 33 are advantageously arranged uniformly on the sprocket. The distance between the toothed portions 33 (= extent of the "smooth" portions 30) may thus depend on the size of the sprocket. In this embodiment, each toothed portion 33 consists of two tooth pitches, namely two tooth spaces. In general, the toothed portions 33 comprise one or more tooth pitches, the number of tooth pitches preferably corresponding to the number of tooth flanks (correspondingly shaped) run-on surfaces 61, 62 used in the driving operating position A.
If, after clamping the anti-skid chain 101 on a tire, the tensioning device 1 according to the invention is brought into the driving operating position according to FIG. 1, the tensioning cable 10 is continuously pulled in until the outer chain 104 is tensioned. In this case, the pawl 6 will be located on a smooth portion 30 in the tensioning device 1. If now comes on the tension cable train, the winding wheel 3 can yield, the pawl 6 slides on the smooth portion 30; this is done until a toothed portion 33 is reached, in which pawl 6 then blocks further rotation in the clamping direction. Thus, the anti-skid chain 101 can be tensioned in larger increments than would correspond to a single tooth pitch. In this way, an increased clearance when tensioning the outer chain 104, and it is ensured that the anti-skid chain 101 sits sufficiently loose on the tire without causing damage. Nevertheless, a rotational movement is blocked, namely a yielding of the winding wheel in the amount of more than one revolution or the extent of a toothless portion corresponding part of a revolution.
As already mentioned, the shifting of the pawl 6 takes place between the two positions by means of the actuating member 5. According to FIG. 4, the actuating member consists of a plate 52, on which the button 51 (FIGS. 1 and 2) is mounted, and an arm 53, which together have a uniformly curved shape. The actuator 5 is inserted in the lower housing part 2 in a recess 25 which extends in a direction surrounding the winding wheel 3 direction. The curved shape of the actuator allows it to be pushed back and forth in the recess 25, with the shield 52 closing the opening in the housing inwardly. The arm 53 extends below the pawl 6 (seen along the axis of the pawl) and is coupled thereto via a hinge connection. For this purpose, the pawl 6 has a nose 66 (or pin) which, together with a corresponding opening 54 in the arm 53, e.g. forms a pin connection; Of course, these elements could also be arranged vice versa. Depending on the position of the button 51, the opening 54 and thus the nose 66 is oriented to different sides of the pawl 6 - in Fig. 4 left or right of the axis of the pawl - whereby the pawl are placed in one of the two positions A and B. can (see Fig. 1 and 2). This training of the operation of the latch position via a working as a slide actuator 5 is characterized by particular robustness and reduces the risk of damage from contamination.
As can also be seen in Fig. 3, the clamping device on a braking element 9, which serves as a damping device. The braking element 9 ensures a smooth retraction of the tension cord and prevents, especially when drawing a larger strand length, a high retraction speed is achieved, resulting in a risk of injury to the user, such. Cutting or impact injuries (by the strand end) on fingers.
The brake element 9 has a wheel element in the form of a toothed wheel 37 which cooperates with a second toothed rim ("brake toothed rim") 39 of the winding wheel 3. Preferably, the brake sprocket 39 is formed as an internal ring gear, and the brake member 9 is mounted in a manner that its axis within the circumference of the winding wheel is eccentric to this, wherein the gear 37 engages the brake ring gear 39. A rotation of the winding wheel 3 is thus converted into a rotation of the gear 37. The body 38 of the braking element is mounted in a recess 24 in the housing bottom 2. Upon rotation of the gear 37, the braking element provides resistance such that it produces a braking action at a certain speed of reel rotation. The braking effect occurs when moving in both directions, so that both too fast unwinding and too fast retraction of the tensioning cable 10 is slowed down. Further details and embodiments of the brake element can be found in the initially mentioned EP 1 935 674 A1 of the applicant. • »PI 1881 -10-
A second exemplary embodiment of a tensioning device 11 according to the invention is shown in FIGS. 9 to 13. In this implementation, the pawl and associated sprocket are " back " arranged, i. on the bottom part of the housing facing side of the winding wheel. In the following, the components of the clamping device are discussed in an overview, wherein the differences from the first embodiment will be discussed in more detail; Incidentally, the above explained in the first embodiment applies.
An overview of the structure of the clamping device 11 is shown in FIGS. 9 and 10. The tensioning device 11 also has a two-part housing in this case, which consists of a housing bottom 12 and a cover 18 (the cover 18 is in turn removed in Fig. 9). The tensioning cable 10 is guided by a with an (here one-piece) sleeve 19 reinforced opening 26 into the housing to a winding wheel 13, on which in the interior of the tensioning device 11 located part of the tensioning cable 10 is rolled up.
The winding wheel 13 has a sprocket 41 on his serving as a pulley 42 for winding the tensioning cable 10 body. The pulley 42 and the winding wheel 13 is biased by a spring 14 in the winding. The spring 14 is preferably designed like the spring 4 of the previous embodiment. Unlike in the previous embodiment, the ring gear 41 is located on that side of the winding wheel, which faces in the installed state of the housing bottom. Thus, in the illustration of FIG. 9, the ring gear 41 is covered by the body of the winding wheel. In addition, the winding wheel 3 has a brake sprocket 44, which cooperates with a provided in the tensioning device 11 braking element 9, which also serves as a damping device in this embodiment.
The sprocket 41 of the winding wheel 13 has a toothing only in peripheral portions 43. In other peripheral portions 40 of the sprocket is free of teeth. For example, in the embodiment shown, four sections 43, each having three teeth and four spaces, are provided by four "smooth " Sections 40 are separated, cf. Fig. 11 and 12. The sections 43 are advantageously arranged uniformly on the sprocket.
A pawl 16 is disposed in the housing adjacent to the winding wheel 13. The pawl 16 is rotatably mounted about a guide sleeve 17 as in the previous embodiment, but to a certain extent "reversed". oriented, as a result of the rear-side arrangement of the winding wheel sprocket. With the actuator 15, which has an externally accessible button 55 and can be operated by means of this, the pawl can be placed between two positions A, B, which are respectively shown in FIGS. 11 and 12.
Referring to Fig. 11a, the pawl has ramp surfaces which are used in blocking the withdrawal of the rope by cooperating with a respective tooth flank of the ring gear 41. Referring to Fig. 11b, the pawl 16 has two... * Φ φ. Φ φ φ π 1881 ι: *:: ::::. • «* Φ ·« 4 «· * * ♦ ♦ Φ ·« · · · · ··· · -11-
Recesses, which cooperate with a resilient retaining element and the resilient holding the pawl in each one of the positions A, B serve. This shape corresponds to the pawl 6 of the first embodiment (see Fig. 5).
As can be seen with reference to FIGS. 12 and 13, 16 two positions A, B are realized by means of the pawl, each corresponding to a blocking position and the operating principle and effect the positions A, B of FIG. 1 and 2 match. In each position, the pawl 16 can assume an end position in which the pawl engages in the toothing 43 of the sprocket 41; In this case, the toothing on tooth flanks of one type interacts on the outer side of the pawl via respective run-on surfaces 61, 62, 63 corresponding in each case to one or more tooth flanks. By means of the pawl 16, the direction is determined in which the pulley is movable while it locks in the opposite direction. In this case, both flanks of the teeth of the ring gear 41 - more precisely the toothed portions 43 - are used for selectively inhibiting the cable movement. For this purpose, the teeth can be symmetrical, as in the embodiments shown, which additionally simplifies the construction.
The actuator 15 of the tensioning device 11 consists essentially of a shield 56, on the outside of which the aforementioned button 55 (FIG. 9) is mounted. The actuator 15 is by its shield 56 is slidably mounted in the housing bottom 12 in an inner space 27 which is provided in the wing portion of the tensioning device, and is held there in its position by means of a wire spring 28. On the inwardly facing side of the shield 56, a stop surface 57, 58 are formed at each end. These interact with an arm 29 of the pawl 16. The actuator can be moved by means of the knob 55 to the left or right; In each case, one of the stop surfaces 57, 58 acts on the arm 29 and tilts the pawl 16 in the respectively belonging to the two positions A and B.
The opening 26, through which the tensioning cable 10 exits from the tensioning device 11, is located in the tensioning device 11 in that wing part, which is opposite to that wing part, in which the actuating member 15 and the pawl 16 are accommodated; this reduces the risk of injury by the tensioning cable 10 to the user in handling the anti-skid chain. Such an arrangement could, of course, also be selected in the tensioning device 1 of FIGS. 1 to 3; in fact, it is obvious that the choice of the location of the opening is independent of whether the ring gear 41 cooperating with the pawl 16 is arranged on the front or rear side of the winding wheel 13.
Vienna, October 14, 2010

权利要求:
Claims (10)
[1]
Claims 1. A tensioning device (1, 11) for an antiskid chain comprising a housing (2, 8; 12, 18), a winding wheel (3, 13) and a pawl (6, 16) associated therewith, the winding wheel (3, 13 ) is rotatably mounted within the housing about its axis and is biased in the cradle direction and a toothed rim (31,41) with a toothing along its circumference (33, 43), and a retractable by a housing opening in the housing tensioning strand (10 ) to the winding wheel (3, 13) is connectable, wherein the pawl (6, 16) in a first position (A) a rotational movement of the winding wheel in the clamping direction by engagement of the pawl (6, 16) in the toothing (33, 43) of the ring gear (31,41), characterized in that on the circumference of the ring gear (31, 41) of the winding wheel at least one region (30, 40) is formed, which is free of a toothing and is located between adjoining serrations.
[2]
2. Clamping device according to claim 1, characterized in that the sprocket (31, 41) on its circumference at least two zahnungsfreie areas (30, 40) which separate an equal number of areas (33, 43), preferably each a constant Number of Zahnungsteilungen have.
[3]
3. Clamping device according to claim 1 or 2, characterized by an externally accessible actuating member (5) which acts via an arm (53) on the pawl (6), whereby the pawl (6) between the first position (A), in it blocks a rotational movement of the winding wheel in the clamping direction, and a second position (B) in which this movement is released, is movable, wherein the arm of the actuator via an articulated connection with the pawl (6) is coupled.
[4]
4. Clamping device according to claim 3, characterized in that the arm extends outside of the winding wheel (3) along a direction extending around the winding wheel and seen in the direction of the axis of the winding wheel (3) is arranged below the pawl.
[5]
5. Clamping device according to claim 3 or 4, characterized in that the articulated connection is a spigot, which through an opening (54) and one in this * * * * · ··· · ΐ88ΐ I l * 1 1 II I * 1 Is formed opening engaging pin (66) which are provided on the pawl or the arm.
[6]
6. Clamping device according to claim 1 or 2, characterized by an externally accessible actuating member (15) having on an inner side two stop surfaces (57, 58), wherein the pawl (16) has an arm (29) extending between the located two stop surfaces and is tiltable depending on the movement of the actuator of the stop surfaces, as a result of this tilting movement, the pawl (16) between the first position (A) in which it blocks a rotational movement of the winding wheel in the clamping direction, and a second position (B) , in which this movement is released, is movable.
[7]
7. Clamping device according to one of claims 3 to 6, characterized in that the pawl also acts on the sprocket (31, 41) in the second position (B), however, a rotational movement of the winding wheel in the winding by engaging the pawl (6,16 ) into the teeth (33,43).
[8]
8. Clamping device according to one of the preceding claims, characterized by a damping device (9) having a with the winding wheel (3,13) geared connected wheel member (37), the rotation of which, at least in a winding direction of the winding wheel (3, 13) corresponding direction, a braking action opposes, wherein the wheel member (37) is preferably a gear which cooperates with a gear rim (39, 44), in particular internal ring gear, of the winding wheel (3).
[9]
9. Anti-skid chain for a vehicle wheel with a tensioning device according to one of the preceding claims.
[10]
10. Anti-skid chain according to claim 9, characterized in that the tensioning device (1, 11) with arranged on the housing holding elements, in particular hooks (21) on an outer strand (104) of the anti-skid chain is immovably fastened. Vienna, October 14, 2010

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DE10333474A1|2004-02-26|Device for equipping the roof of a motor vehicle with a roller blind and a sliding cover, which are driven by the same motor

EP0504557B1|1994-06-01|Tightening and tensioning device for tensioning lines

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DE2526413A1|1976-12-30|TIRE CHAIN

DE2611273A1|1977-09-29|Vehicle snow chain fastener - has rear mounting ring ends tightened by lever operated from front by pull chain |

DE10333475B4|2006-03-30|Device for equipping the roof of a motor vehicle, with a roller blind and an ejectable cover, which are driven by the same motor

DE102014108902B4|2019-05-29|Turnbuckle for a non-skid chain

EP3090886B1|2017-11-15|Anti-skid and anti-slide device for vehicle tires

EP0274981B1|1991-03-13|Antislip chains for vehicle tyres

DE102015217097A1|2017-03-09|Parking brake device for a motor vehicle transmission

EP1331109A2|2003-07-30|Skid chain

EP3176011B1|2019-04-24|Anti-skid device comprising a traction device guided over the tread area for simultaneous drawing together of internal support and traction section

DE102010001448A1|2011-08-04|Cable drum for a toy crane

EP3088050B1|2017-11-15|Wire protection basket

DE102016010674A1|2018-03-08|Snow chain

DE10046142A1|2002-04-04|Device for fixing an end region of a vehicle safety device at a fastening point on the vehicle side and for tensioning the end region of the vehicle safety device relative to the fastening point

同族专利:

公开号 | 公开日

EP2441600A1|2012-04-18|

JP2012081959A|2012-04-26|

US8720509B2|2014-05-13|

US20120090751A1|2012-04-19|

AT510451B1|2012-09-15|

EP2441600B1|2012-10-17|

JP5344499B2|2013-11-20|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

JPS5570303U|1978-11-09|1980-05-15|

US5377626A|1993-05-10|1995-01-03|Kilsby; Celia|Lunge line controller|

DE19708756C2|1997-03-04|2002-07-11|Weissenfels Spa|Turnbuckle for anti-skid chain|

AT408635B|2000-04-10|2002-01-25|Pewag Austria Gmbh|TENSIONER FOR A SNOW CHAIN|

US6293485B1|2000-08-10|2001-09-25|The Morey Corporation|Two-stage retractable cord reel|

US7900670B2|2006-02-02|2011-03-08|Peerless Chain Company|Self-tightening traction assembly having tensioning device|

ES2352687T3|2006-02-02|2011-02-22|Peerless Chain Company|SELF-TENSIONED SNOW CHAIN AND METHODS OF USE.|

AT504512B1|2006-12-21|2008-06-15|Pewag Schneeketten Gmbh & Co|CLAMPING DEVICE FOR A SLIDING CHAIN|

JP3143006U|2008-04-23|2008-07-03|株式会社エフ．イー．シーチェーン|Tightening device for anti-slip chain of vehicle tire|

EP2154009A1|2008-08-07|2010-02-17|Pewag Schneeketten GMBH & Co KG|Turnbuckle|CN102582381B|2012-03-20|2013-07-31|高满洪|Antiskid assembly tire for motor vehicle|

JP6295032B2|2013-05-29|2018-03-14|株式会社カーメイト|Wire tension device for tire slip prevention|

CN103644930A|2013-12-12|2014-03-19|广西壮族自治区特种设备监督检验院|Steering parameter tester automatic clamping device|

JP6411812B2|2014-08-11|2018-10-24|株式会社カーメイト|Winding device|

DE102016104747A1|2016-03-15|2017-09-21|pewag Schneeketten GmbH|Anti-skid chain with tensioning device|

US10149035B2|2016-08-31|2018-12-04|Bluecom Co., Ltd.|Automatic winding module of wire for bluetooth headset with improved wear resistance function of rotation axis|

CN106882001B|2017-02-23|2018-08-24|杭州萧山恒利塑料制品厂|A kind of chaste tree of automatic contraction and locking wheel button|

CN107599763A|2017-08-08|2018-01-19|杭州萧山恒利塑料制品厂|A kind of forced locking device for anti-skid chain used in snow area|

CN108750834A|2018-06-07|2018-11-06|天地科技股份有限公司|A kind of high-pressure rubber pipe is harvested and stored device automatically|

CN110902503A|2019-11-29|2020-03-24|寿璧鹤|Electric power cabinet body with receive and release line function|

CN111342400B|2020-03-17|2021-04-13|山东工业职业学院|Computer termination is used in computer network development|

法律状态:

优先权:

申请号 | 申请日 | 专利标题

ATA1714/2010A|AT510451B1|2010-10-14|2010-10-14|CLAMPING DEVICE FOR A SLIDING CHAIN|ATA1714/2010A| AT510451B1|2010-10-14|2010-10-14|CLAMPING DEVICE FOR A SLIDING CHAIN|

EP11182961A| EP2441600B1|2010-10-14|2011-09-27|Tension device for a slide protection chain|

US13/272,855| US8720509B2|2010-10-14|2011-10-13|Tension device for a nonskid chain|

JP2011226191A| JP5344499B2|2010-10-14|2011-10-13|Tire chain tensioning device|

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