EP2443704B1 - Device for mounting and positioning a grommet on a cable - Google Patents

Description

The present invention relates to a device for drawing a spout to a predetermined position on a preferably electric cable. Such grommets serve, for example, as kink protection or as protection against the ingress of water or dust into a contact region of the cable. These grommets are usually made rubber-elastic and require a precise positioning on the cable, so that the seal is permanently guaranteed. Such grommets are used in particular on electrical cables, but can also be used on fiber optic cables or similar lines.

The DE 195 17 081 A1 shows a method and apparatus for assembling electrical cables with grommets. The spouts are threaded onto a rod-shaped or filament-shaped guide element, on which they are conveyed to an expansion zone. After the respective spout has been widened in the expansion zone, it can be pushed onto the cable.

The DE 698 07 982 T2 shows a device for mounting grommets on electrical wires and wires. The wound up spout is first mounted on a expansion sleeve. The wire is passed between two jaws, for which they are to be closed. The closed jaws form a first stop for the spout, while a second stop is formed by a retaining wall. The jaws are provided with a funnel-shaped wire guide surface for guiding the end of the wire.

The DE 41 31 051 C1 shows a device for mechanical positioning and sliding of elastic sealing plug on an electrical line. In this device, a grommet between a plunger sleeve and two sliding jaws is clamped. The sliding jaws surround the line with a radial play.

The EP 1 022 821 A1 shows a device for Tüllenbestückung of electrical cables, in which a spout is guided, inter alia, by two jaws. The jaws enclose an area that corresponds in its negative shape of the outer shape of the spout.

The DE 88 13 932 U1 shows a device for mounting kink protection or form grommets on electrical cables. The device comprises an elongated body, one end of which is in the form of a sleeve and the other end of which is a rod. The outer diameter of the rod is slightly smaller than the inner diameter of the Tüllenlängsdurchbohrung. The outer diameter of the sleeve is larger than the outer diameter of the rod. The device further comprises an annular body whose central bore is slightly larger in diameter than the respective diameter of the elongated body. The elongated body and the annular body are movable relative to each other in the direction of the longitudinal axis of the elongate body, so that the annular body is completely over the elongated body überiebbar. When this sliding over it comes to the fact that the slipped on the elongated body spout widened by this and then pushed onto the cable. The cable, the end of which is to be inserted into the bush beforehand, is to be displaced with the elongated body during the pushing-on process. The position of the Cable in the sleeve at the moment in which the spout begins to slide down from the elongated body on the cable, determines the future position of the grommet on the cable. In many applications, the grommet and the cable are chosen such that the grommet can not be moved nondestructively on the cable after mounting. Consequently, the position can only be defined during winding. Positioning is made more difficult by the fact that the end of the cable is invisibly inside the sleeve. The positioning is further complicated by the fact that the axial length of the spout increases during the sliding on the cable due to a reduction in the diameter. The spout can only expand axially where it is not yet stuck to the cable. Therefore, positioning using the stopper formed by the end of the sleeve is too inaccurate. In one embodiment of this solution, the annular body is formed by a plurality of movable push arms, which allow a concentric expansion of the annular body. However, the push arms support the spout only in the front area, whereby the risk of kinking or buckling of the spout exists.

The object of the present invention is based on the DE 88 13 932 U1 It is to provide an apparatus for mounting a grommet on an electrical cable, with which the grommet can be mounted exactly to a predetermined position on the electric cable.

The above object is achieved by a device according to the appended claim 1.

The device according to the invention is used for drawing a spout to a predetermined position on an electrical Electric wire. The electrical cable may be, for example, a single or multi-core cable with a round or even oval cross-section. The device can also be adapted for special cross-sectional shapes, for example, with special notches. The spout to be installed can be, for example, a rubber-elastic grommet for kink protection or for protection against environmental influences, for example from dust, water, moisture and aggressive gases. Also, the spout may be formed as a mechanical part of a connector and be shaped so that unintentional release of the connector is prevented.

The device according to the invention initially comprises a winding sleeve for passing through the grommet. The rear end of the mounting sleeve serves to insert one end of the electrical cable into the mounting sleeve. Consequently, the inner diameter of the Aufziehhülse must be greater than the outer diameter of the electric cable. The end of the electrical cable can already be stripped, stripped or provided with contacts. The front end of the Aufziehhülse serves to transmit a tensile force on the Aufziehhülse. For this purpose, the front end of the winding sleeve is to be designed accordingly, for example with a hook, with a head or with notches. The front end of the mounting sleeve does not have to be hollow. The Aufziehhülse has an increasing in the direction of the rear end outer diameter, which is greater than the inner diameter of the wound up spout at the rear end of the Aufziehhülse. Consequently, the spout is widened when mounting on the Aufziehhülse. The diameter of the Aufziehhülse at the front end is preferably substantially smaller than the inner diameter of the aufziehenden spout, whereby insertion of the Aufziehhülse is facilitated in the spout. The outer diameter of the winding sleeve is preferred gradually increases towards the rear end, so that the spout can slide smoothly over the Aufziehhülse during expansion. The outer diameter of the Aufziehhülse at the rear end must necessarily be greater than the outer diameter of the cable, since the cable is received at the end of the Aufziehhülse. Consequently, the spout, when pushed to the rear end of the mounting sleeve, has an inner diameter greater than the outer diameter of the cable. If the expanded spout is pushed over the rear end of the winding sleeve, the grommet slides on the cable, while at the same time the inner diameter of the grommet is equal to the outer diameter of the cable. Once the grommet is completely pushed over the retractable sleeve, the grommet sits completely on the cable, completing the winding process.

The device according to the invention further comprises a sleeve receptacle for carrying out the Aufziehhülse. The Aufziehhülse can be passed, starting with its front end through the sleeve receptacle, which is in the rear end of the Aufziehhülse the end of the electric cable. The sleeve receptacle has a Tüllenanschlag, by which is prevented that the expanded spout is also passed through the sleeve receptacle. The sleeve receptacle is formed in the simplest case by a circular hole whose diameter is slightly larger than the largest diameter of the Aufziehhülse, but is smaller than the outer diameter of the wound up spout. The Aufziehhülse can be pulled through the sleeve receptacle using a pulling device. For this purpose, the Aufziehhülse is acted upon at the front end by means of the pulling device with a tensile force against the sleeve receptacle. With the help of the pulling device, the required pulling force can be applied to pull the spout over the mounting sleeve. The tensile force is particularly required to allow the expansion of the spout when sliding onto the larger outer diameter of the Aufziehhülse. For this purpose, the pulling device must be engaged with the front end of the winding sleeve.

According to the invention, the device further comprises a position fixing device which can be fastened on the cable at the predetermined position. The position fixing device forms a positioning stop for the wound up and already expanded nozzle. Contrary to the prior art, the positioning of the grommet is accomplished not only by positioning the electrical cable with respect to the retracting sleeve or the sleeve receptacle, but also by the cable abutting the expanded grommet via the position fixing device. The position fixing device need not be connected to the pulling device, the sleeve receptacle, the winding sleeve or a supporting part of the device. However, it may for example be connected via a chain to a supporting part of the device so that it can not be lost. The position fixing device is to be fastened to the predetermined position on the electrical cable prior to pulling the spout, wherein it defines the rear end position of the spout on the cable in the direction of the tensile force. The position fixing device may be configured to be removed from the electrical cable after the grommet has been mounted. However, the position fixing device can also be designed such that it remains on the cable even after the sleeve has been pulled on, for example in the form of a rubber ring on the cable.

The device according to the invention solves a long-known problem of corresponding devices of the prior art by a low-effort extension. The position fixing device can be realized easily and inexpensively, and allows accurate axial positioning of a grommet to be wound up on an electric cable.

Since the position fixing device is to be fixed to the electric wire, the position fixing device moves together with the electric wire during the tightening of the spout on the electric wire. Consequently, the position fixing device changes its position relative to the sleeve receptacle and to the pulling device. This movement of the position fixing device during the winding of the spout on the electrical cable is guided in a preferred embodiment of the device according to the invention by a longitudinal member. The position fixing device is attached to the side rail. The longitudinal member is guided displaceably in the direction of the tensile force against the sleeve receptacle, for example, by being seated in a sliding bearing attached to the sleeve receptacle. The longitudinal member may also be designed such that it is also pivotable or foldable relative to the sleeve receptacle or relative to a base body carrying the sleeve receptacle in order to facilitate the operation. For example, the pivoting of the longitudinal member may be possible if it is completely pulled out of the sliding bearing. The embodiment of the device according to the invention with the displaceable side member has the advantage that the position fixing device is not designed as a loose component of the device according to the invention. A further advantage is that the electrical cable is supported during the winding of the spout by the position fixing device, ensuring that the cable is oriented in the direction of the tensile force. During the mounting of the grommet on the electrical cable is to ensure that the electrical cable with the position fixing device abuts the spout, which can be accomplished for example manually or by means of a tension spring. Alternatively, the side member may be fixedly connected to the device and the position fixing device axially slidably mounted on the side rail.

The position fixing device of the device according to the invention can be carried out, for example, in the form of a simple clamp, a screw clamp, a clamping ring, a small locking pliers, a screw clamp or even a ring to be bonded. The position fixing device is merely to ensure that it can strike the spout, which can be ensured by means of many mechanical elements. The attachment can be realized for example by a clamping or screw connection, but also by an adhesive connection. The position fixing device may also be formed integrally with the electrical cable, for example in a pre-assembled cable.

In a preferred embodiment of the device according to the invention, the position fixing device is formed by a releasable clamp. The releasable clamp can be clamped on the electrical cable before starting to pull up the grommet and be released from the electrical cable after mounting. The clip is preferably formed by two interconnected via a hinge clamp lever. The swivel joint divides the clamp levers into a handle and a clamping piece. Are the handles to each other manually moved, so the clip opens, ie the two clamping pieces move away from each other, so that the clip can be placed on the electrical cable. The clamping pieces are pressed against each other by a leg spring, so that upon a reduction of the force manually applied to the grips, the clamping pieces are forced onto the surface of the electric cable and the clip is jammed on the electric cable. As the grommet is pulled onto the electrical cable, the clip forms a stop which abuts against the grommet. The clip can be solved after completion of the winding of the spout on the electrical cable from the electrical cable, that the two handles are pressed manually to each other.

Preferably, at least one of the two clamping pieces has a counter to the direction of the tensile force aligned toothing with at least one tooth. This is achieved, for example, in that the tooth or preferably the teeth of the toothing are arranged obliquely and are aligned counter to the direction of the tensile force. Due to the alignment of the teeth, the clip can also be displaced in a clamped state or at least in a partially clamped state on the electrical cable in the direction of the pulling force. The flanks of the teeth slide over the electrical cable. If, however, an attempt is made to move the cable in the clamped state of the clamp in the direction of the tensile force, the tips of the teeth are pressed into the surface of the electric cable, whereby a shift in this direction is prevented. Also in this embodiment, the inventive function of the position fixing device, namely the formation of a positioning stop for the wound up spout, guaranteed because the spout relative to the electrical cable during the winding of the spout in the Direction of traction is urged, whereby the clamp is urged against the direction of the tensile force. The clamp acts as a positioning stop because it is not possible to shift it against the direction of the pulling force. The user can clamp the clip in the vicinity of the nozzle to be wound on the cable and then position by moving in the direction of the wound up snout exactly to the predetermined position.

In a preferred embodiment of the device according to the invention, the sleeve receptacle comprises a grommet receptacle, in which a cavity is formed, which has a grommet opening on one side. The Tülleneinführungsöffnung serves to introduce the Aufziehhülse with the already partially wound spout. The cavity has on the other side a Aufziehhülsendurchführöffnung through which the Aufziehhülse is passed, in order to finally be pulled out of the cavity can. The spout stopper is formed in the cavity between the spout insertion port and the tightening sleeve passage opening. In the cavity of Tüllenaufnahme the aufziehende spout can be safely absorbed. The deformation of the spout during winding can be limited by the formation of the cavity in the region of the spout insertion opening, for example, to prevent kinking of the spout.

The spout stop in the cavity of the spout receptacle is preferably formed at the transition from the spout insertion opening to the tightening sleeve passage opening in that the spout insertion opening has a larger cross-section than the winding sleeve passage opening. For example, the Tüllenanschlag may be formed by a step, which at the transition from the Tülleneinführungsöffnung to the smaller Aufziehhülsendurchführöffnung results. The grommet insertion opening and the Aufziehhülsendurchführungsöffnung may for example be formed in a hollow cylindrical shape and have a common axis. In this embodiment, the hollow cylindrical Aufziehhülsendurchführöffnung on a smaller diameter than the hollow cylindrical Tullinführungsöffnung. The grommet entry port and the capstan passage port abut each other along their common axis and form the spout stopper at the resulting step. At the same time, the spout insertion opening and the retracting sleeve passage opening form the entire cavity of the spout receptacle.

The Tüllenanschlag preferably has a wraparound around the Aufziehhülsendurchführungsöffnung and against the direction of the tensile force aligned wedge. The wedge thus forms a ring. By means of this wedge, the grommet attached to the grommet is prevented from being drawn into the grommet opening due to the tensile force acting on it. The circumferential wedge urges the striking grommet radially outwardly, thereby preventing portions of the resilient, bumping grommet from being pulled into the pull-on sleeve passage opening. The circumferential wedge may be formed straight or arc-like on its radially outwardly facing surface.

The Tüllenaufnahme is preferably based on their aligned in the direction of the tensile force longitudinal axis sector-like divided into Tüllenaufnahmesektoren. The Tüllenaufnahmesektoren are urged by a spring element in the direction of the longitudinal axis. If the Tüllenaufnahmesektoren moved against the spring force of the spring element together radially outwards, so the cavity increases in the region of the Tülleneinführungsöffnung and the tightening sleeve passage opening. The Tüllenaufnahmesektoren are preferably the same, their number is arbitrarily large, but preferably 3 or 4. In a state in which the Tüllenaufnahmesektoren are arranged abutting each other by the spring element, they completely radially enclose the cavity of the Tüllenaufnahme. The Tüllenaufnahmesektoren can be designed such that they form a cylinder jacket-shaped surface of the Tüllenaufnahme in this state. Likewise, the cavity may be formed in this state, both in the region of the Aufziehhülsendurchführungsöffnung as well as in the region of the Tülleneinführungsöffnung hollow cylindrical. Alternatively, the Tüllenaufnahmesektoren can also be designed such that the Tülleneinführöffnung and Aufziehhülsendurchführungsöffnung in its outline are then hollow cylindrical, when the Tüllenaufnahmesektoren are moved against the spring force of the spring element together radially outward. In these embodiments, the spout receptacle can be adapted to differently sized spouts and different sized cross sections of the electrical cable. For example, the spout receptacle may be configured to be suitable for mounting grommets on electrical cables having a cross-section in the range of 2.5 mm ² to 10 mm ² . When inserting the Aufziehhülse and the spout in the Spout recording this can expand according to the size of the Aufziehhülse and the aufziehenden spout. In particular, it is hereby ensured that the transition from the grommet inlet opening to the grommet duct opening permanently forms the grommet stop because the cross section of the cavity in the area of the grommet duct opening matches the cross section of the mounting sleeve located there, thereby preventing the expanded grommet from reaching the area of the pull-on sleeve duct opening arrives.

The spring element can be formed, for example, in that the sleeve receiving sectors are designed to be completely elastic or at least in one end region, wherein the sleeve receiving sectors are connected to one another in the end region. In a preferred embodiment, the spring element is formed by one or more helical spring coils, which surround the Tüllenaufnahme circumferentially about its longitudinal axis.

The cavity in the region of the grommet insertion opening is preferably designed for positive reception of the grommet to be wound up. In this case, the spring element on a range of elasticity, which allows an expansion of the Tüllenaufnahmesektoren each other, which follows a conditional by the implementation of the Aufziehhülse expansion of the wound up spout. In this embodiment, the surface of the aufzusenden spout is positively enclosed during the entire Aufziehvorganges of Tüllenaufnahme. The Tüllenaufnahme expands together with the aufzusenden spout. Likewise, the grommet retracts together with the sleeve to be wound up when the grommet slides on the cable. Due to the positive recording, the deformation of the spout is largely defined, whereby, for example, the formation of undesirable beads or kinks during expansion of the wound up spout is prevented.

For the traction device of the device according to the invention many different embodiments are conceivable. In the simplest case, the pulling device is formed by the fact that it gives the user the ability to grip the sleeve receptacle and the Aufziehhülse and manually initiate a pulling force on this. In a preferred embodiment of the device according to the invention, the pulling device is pistol-like executed. In this embodiment, the pulling device comprises a pull rod, which is to be moved by the user by means of a hand lever in batches in the direction of the tensile force. For this purpose, a blocking in the direction of the traction blocking device is slidably mounted on the pull rod. If the hand lever is pivoted by the user, the blocking device is moved in the direction of the tensile force, the distance covered thereby corresponds to only a fraction of the length of the drawbar. As the blocking device blocks in this direction, it pulls the pull rod with it. If the lever is pivoted back in the next step, so also the locking device is moved back, but it is not blocked and therefore moved on the pull rod. After a repeated repetition of the back and forth pivoting of the hand lever, the pull rod is moved with its entire length in the direction of the tensile force. This also applies to the Aufziehhülse, which is attached to the pull rod.

The traction device further preferably includes a drawbar blockage which blocks movement of the drawbar against the direction of traction. This ensures that the pull rod is not retracted against the direction of traction when pivoting back the hand lever. The drawbar block is releasable to allow the drawbar to be retracted after completing the fitting of the grommet to the electrical cable. The blocking device and the Zugstangenblockierung are formed in the simplest case by cuboidal plates having a passage opening, with which they are pushed onto the drawbar. To block the plates are tilted against the pull rod.

In a simple embodiment, the hand lever is arranged such that it is aligned in the actuated state approximately perpendicular to the pull rod. The embodiment further comprises a counter-grip, which is also aligned perpendicular to the pull rod and to which the hand lever is to press on actuation. The user grips the mating handle and the hand lever with one hand to operate the pulling device and then performs a pump-like movement to operate the pulling device. In order to minimize the space requirement of the pulling device, the hand lever is designed kinked in a preferred embodiment of the device according to the invention. The hand lever is pivotally mounted on a lever shaft, whereby the hand lever is divided into a force acting on the blocking device feed lever and a handle. The kink is achieved in that the angle between the hand lever and the feed lever is less than 180 °, for example 90 °. In an actuated state, the hand lever is aligned parallel to the pull rod. In an unactuated state, the lever is inclined for example about 30 ° relative to the pull rod. To operate the hand lever, press it in the direction of the pull rod. To do this, the user grips both the hand lever and a body guiding the pull rod with one hand and presses them together.

In an alternative embodiment of the device according to the invention, the pulling device is formed by a pneumatic cylinder or by a hydraulic cylinder which can be connected to a pressure pump. In this embodiment, the tensile force is not applied manually. The user only has to activate the pressure pump or the pneumatic cylinder or the hydraulic cylinder in order to apply the pulling sleeve with the pulling force to suggest. Likewise, an electric motor drive of the pulling device is conceivable.

Fig. 1:

eine Vorrichtung zum Aufziehen einer Tülle auf ein elektrisches Kabel gemäß dem Stand der Technik;

Fig. 2:

eine perspektivische Ansicht einer Klammer einer bevorzugten Ausführungsform einer erfindungsgemäßen Vorrichtung;

Fig. 3:

die in Fig. 2 gezeigte Klammer in einer weiteren perspektivischen Ansicht;

Fig. 4:

die in Fig. 2 gezeigte Klammer in einer Detailansicht;

Fig. 5:

eine Tüllenaufnahme einer weiteren bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung in zwei Ansichten; und

Fig. 6:

die in Fig. 5 gezeigte Tüllenaufnahme in einer Längsseitenansicht.

With reference to the drawing, an embodiment according to the prior art and a preferred embodiment of the device according to the invention will be described below. Show it:

Fig. 1:

a device for mounting a grommet on an electrical cable according to the prior art;

Fig. 2:

a perspective view of a clip of a preferred embodiment of a device according to the invention;

3:

in the Fig. 2 shown bracket in another perspective view;

4:

in the Fig. 2 shown bracket in a detail view;

Fig. 5:

a Tüllenaufnahme another preferred embodiment of the device according to the invention in two views; and

Fig. 6:

in the Fig. 5 Spout recording shown in a longitudinal side view.

Fig. 1 shows a sectional view of a detail of a device for pulling a nozzle 01 on a preferably electrical cable 02 according to the prior art, as shown in FIG DE 88 13 932 U1 is known and characterized by the preamble of claim 1. In the illustration, the device is shown during the winding of the nozzle 01, namely at a moment in which the nozzle 01 already widened was, but not yet on the cable 02 is located, that is not in contact with the outer insulation layer of the cable. The device comprises a Aufziehhülse 03, which is hollow at its rear end 04 and receives one end of the cable 02. In this area, the Aufziehhülse 03 is shaped like a hollow cylinder whose inner diameter is slightly larger than the outer diameter of the cable 02. The Aufziehhülse 03 has at its front end 06 on a pawl 07, with which the Aufziehhülse 03 in a jack receptacle 08 a traction device (not shown) is latched.

The pulling device is fixed to a device main body (not shown), to which also a sleeve receptacle 11 is attached. The sleeve receptacle 11 has an opening 12, whose width adapts to the diameter of the Aufziehhülse 03 therein, whereby this width is never noticeably larger than the largest outer diameter of the Aufziehhülse 03. As a result, the sleeve receptacle 11 forms a stop for the nozzle 01, since the nozzle 01 can not be passed through the opening 12. By means of the pulling device acting against the sleeve receptacle 11 tensile force can be exerted on the Aufziehhülse 03. Thus, the Aufziehhülse 03 can be pulled through the opening 12 of the sleeve receptacle 11 through, the nozzle 01 is moved beginning at the front end 06 of the Aufziehhülse 03 to the rear end 04 of the Aufziehhülse 03. In this case, the nozzle 01 slides over a widening region 13 of the Aufziehhülse 03, in which the outer diameter of the Aufziehhülse 03 is gradually larger. During the sliding of the nozzle 01 over the widening region 13 of the mounting sleeve 03, the nozzle 01 is widened. If the Aufziehhülse 03 continued pulled, the nozzle 01 is pushed over the rear end of the Aufziehhülse 03, whereby the spout 01 contracts again, thereby enclosing the electrical cable 02, namely its outer insulation layer. After the grommet 01 has been completely pushed over the rear end 04 of the Aufziehhülse 03, it is completely on the electric cable 02. Thus, the process of winding the nozzle 01 is completed on the electric cable 02.

Fig. 2 shows a perspective view of a clip of a preferred embodiment of the device according to the invention for pulling a spout to a predetermined position on an electrical cable. The bracket shown may, for example, the in Fig. 1 complement shown device, whereby the solution according to the invention is realized. The clip is at the position on the electrical cable 02 (shown in FIG Fig. 1 ), in which the nozzle 01 occupies its predetermined position by a gapless arrangement next to the clip on the cable 02. The clamp comprises a first clamp lever 21 and a second clamp lever 22, which are connected to each other via a hinge 23. The rotary joint 23 divides the two clamping levers 21, 22 into a grip piece 24, 26 and into a clamping piece 27, 28. For actuating the clamp, the two grip pieces 24, 26 are pressed together by finger force, whereby the two clamping pieces 27, 28 are removed from each other in that the electrical cable 02 can be received between the clamping pieces 27, 28. If the force for compressing the two grips 24, 26 is withdrawn, the two clamping pieces 27, 28 move towards each other, whereby the electric cable 02 between the two clamping pieces 27, 28 jammed and the clamp sits firmly on the electric cable 02. A side surface 29 of the clamping piece 27 of the first clamp lever 21 forms a stop surface for the nozzle 01. The hinge 23 is on a support rod 31 (partially shown) attached. The holding rod 31 is arranged to be displaceable in the direction of the pulling force acting on the mounting sleeve 03, for example in a guide in a base body (not shown) of the device according to the invention. This ensures that the electric cable 02 can move together with the clamp in the direction of the tensile force. The clip may alternatively be designed without grips. The clamping pieces are then designed such that they can slide on the cable even when they strike due to the spring force to each other. When sliding the clamp onto the cable, the clamping pieces are pushed away from each other against the spring force and thereby jam on the cable. As a result, the clip can be pushed effortlessly on the cable and pulled down by this.

Fig. 3 shows another perspective view of in Fig. 2 shown bracket, in particular, the two clamping pieces 27, 28 can be seen. The clamping piece 27 of the first clamping lever 21 is flat and executed with a toothing 33. The clamping piece 28 of the second clamp lever 22 is designed as a bracket. There are many other designs of the clip, the clamp lever and the clamping pieces for a function of the invention conceivable. It must only be ensured a fixation on the electric cable 02 and a local limitation of the nozzle 01.

Fig. 4 shows the in Fig. 2 and 3 shown clamping pieces 27, 28 in a perspective view in detail. In particular, the toothing 33 is shown, which has a one-sided alignment of the teeth. In this way, the clip can also be in a clamped state in the direction of the tensile force on the cable 02 (shown in FIG Fig. 1 ) are moved. On the other hand is a displacement of clamped on the cable 02 clamp against the direction of the tensile force prevented.

Fig. 5 shows a spout receptacle of another preferred embodiment of the device according to the invention in two views. Fig. A) the Fig. 5 shows a view from the front. Fig. B) the Fig. 5 shows a side view of the grommet holder. The grommet receptacle is in the region of the sleeve receptacle 11 (shown in FIG Fig. 1 ) and supplements the sleeve receptacle. Alternatively, the sleeve receptacle may also be formed solely by the Tüllenaufnahme. The spout receptacle essentially has the outer shape of a cylinder. The spout receptacle has a cavity 41 which extends along the axis of the spout receptacle and is coaxially formed in the spout receptacle. The cavity 41 serves to receive the Aufziehhülse 03, the nozzle 01 and the electric cable 02 (all shown in Fig. 1 ).

The spout receptacle is sector-like divided into three Tüllenaufnahmesektoren 42. The three Tüllenaufnahmesektoren 42 are identical and form based on the rotationally symmetrical shape of the Tüllenaufnahme each have a sector of about 120 °. The three Tüllenaufnahmesektoren 42 are held together exclusively by three annular coil spring coils 43, which are arranged on the cylinder jacket-shaped surface of the Tüllenaufnahme and enclose the Tüllenaufnahme circumferentially. In the state shown, the three Tüllenaufnahmesektoren 42 are arranged abutting each other, so that the Tüllenaufnahme is shown in its smallest dimension. The three Tüllenaufnahmesektoren 42 can be moved away from each other against the spring force of the helical spring coil 43, whereby the cross section of the Tüllenaufnahme is increased. In particular, it is increasing the cross section of the cavity 41, whereby different sized cables and nozzles can be accommodated.

Furthermore, a spout stop 49 and a wedge 51 are shown, which are described in detail in FIG Fig. 6 are shown.

Fig. 6 shows the in Fig. 5 shown spout recording in another view from the front. In the partially sectioned view, the cavity 41 can be seen. The cavity 41 includes a spout insertion opening 46 and a tightening sleeve passage opening 47. The spout insertion opening 46 is substantially in the shape of a hollow cylinder. If the Tüllenaufnahmesektoren 42 against the spring force of the coil spring coil 43 moves radially outward, so increases the cross section of the Tülleinführungsöffnung 46, so that larger spouts can be accommodated. The inner circumferential surface of the spout insertion port 46 slightly changes in shape as the spout receiving sectors 42 are moved radially outward. In any case, the hollow cylindrical shape of the nozzle insertion port 46 is substantially maintained when the sleeve receiving portions 42 are smoothly moved radially outward.

The grommet insertion port 46 serves to insert the retracting sleeve 03 (shown in FIG Fig. 1 ), on which the aufziehende spout 01 is already partially pushed. When inserting the Aufziehhülse 03 in the Tülleinführungsöffnung 46, the front end 06 of the Aufziehhülse 03 enters the Aufziehhülsendurchführungsöffnung 47 and finally out of the Tüllenaufnahme, so that the front end 06 is accessible from outside the Tüllenaufnahme. The Aufziehhülsendurchführöffnung 47 is characterized in particular by the fact that its cross-section is smaller than the cross section of the nozzle insertion opening 46. The tightening sleeve passage opening 47 is also designed substantially hollow cylindrical and has with the Tülleinführungsöffnung 46 has a common longitudinal axis. The hollow cylindrical shape of the pull-on sleeve passage opening 47 is narrowed by a narrowing section 48 at the side facing the tube insertion opening 46. Since the tightening sleeve passage opening 47 has a smaller cross section than the grommet opening 46, there is a step at the transition thereof, which forms a spout stop 49. After the nozzle 01 has been inserted into the Tülleinführungsöffnung 46, the nozzle 01 passes with its front end to the Tüllenanschlag 49, which prevents further insertion of the nozzle 01 into the cavity 41. On the other hand, the Aufziehhülse 03 reaches up to Aufziehhülsendurchführungsöffnung 47 so that the Aufziehhülse 03 can be completely pulled through the cavity 41. The annular Tüllenanschlag 49 has a circumferential wedge 51, the tip of which is directed in the direction of the inserted spout 01. The tip of the circumferential wedge 51 is disposed adjacent to the inner wall of the pull-on sleeve passage opening 47. A descending edge of the circumferential wedge 51 is arcuately shaped and aligned in the direction of the sleeve insertion opening 46. As a result, the grommet 01 inserted into the grommet opening 46 is urged radially outward at its front end when it abuts against the wedge 51. Consequently, it is ensured to a high degree that the spout 01 does not get into the area of the Aufziehhülsendurchführöffnung 47, which otherwise could lead to irreversible deformation of the spout 01.

The Tüllenaufnahme has on its lateral surface three circumferential grooves 52 in which the helical spring coils 43 are held.

LIST OF REFERENCE NUMBERS

01 -

spout

02 -

electric wire

03 -

Aufziehhülse

04 -

rear end

06 -

front end

07 -

pawl

08 -

latch receptacle

11 -

sleeve receiving

12 -

opening

13 -

expansion area

21 -

first clamp lever

22 -

second clamp lever

23 -

swivel

24 -

grip

26 -

grip

27 -

clamp

28 -

clamp

29 -

side surface

31 -

Handrail

33 -

gearing

41 -

cavity

42 -

Tüllenaufnahmesektor

43 -

Coil spring Wendel

46 -

Tülleneinführungsöffnung

47 -

Aufziehhülsendurchführungsöffnung

48 -

throat area

49 -

Tüllenanschlag

51 -

wedge

52 -

groove

Claims (15)

1. A device for mounting a grommet (01) in a predetermined position on a cable (02), comprising:

   - a mounting sleeve (03) to be passed through the grommet (01), with a rear end (04) for inserting an end of the cable (02) into the mounting sleeve (03) and with a front end (06) for transferring a tractive force onto the mounting sleeve (03), wherein the mounting sleeve (03) has an outer diameter which increases in the direction of the rear end (04) and is larger at the rear end (04) than the inner diameter of the grommet (01) to be mounted;

   - a sleeve receptacle (11) for passing through the mounting sleeve (03), wherein the sleeve receptacle (11) has a grommet stop (11, 49) which prevents the grommet (01) from passing through the sleeve receptacle (11);

   - a tractive device for subjecting the mounting sleeve (03) at its front end (06) to a tractive force with respect to the sleeve receptacle (11);

   characterized in that the device further comprises a position fixing device which can be fastened on the cable (02) at the predetermined position so as to move together with the cable (02) when mounting the grommet (01) on the cable (02), and which forms a positioning stop (29) for the grommet (01) to be mounted.
2. The device according to claim 1, characterized in that it comprises a longitudinal carrier (31) on which the position fixing device is fastened and which is movably guided in the direction of the tractive force with respect to the sleeve receptacle (11).
3. The device according to claim 1 or 2, characterized in that the position fixing device is formed by a detachable clamp.
4. The device according to claim 3, characterized in that the clamp is formed by two clamp levers (21, 22) which are connected to one another via a pivot joint (23) and on each of which a clamping piece (27, 28) is formed, wherein the clamping pieces (27, 28) are pressed against one another by a leg spring.
5. The device according to claim 4, characterized in that at least one of the clamping pieces (27) has a toothing (33) which is aligned opposite to the direction of the tractive force and has at least one tooth, wherein said toothing enables moving the clamp on the cable (02) in the direction of the tractive force even in a clamped state of the clamp.
6. The device according to any one of the claims 1 to 5, characterized in that the sleeve receptacle (11) comprises a grommet receptacle in which a cavity (41) is formed which comprises a grommet insertion opening (46) for inserting the grommet (01) and the mounting sleeve (03), and a mounting sleeve passage opening (47) for pulling out the mounting sleeve (03), wherein the grommet stop (49) is formed in the cavity (41) between the grommet insertion opening (46) and the mounting sleeve passage opening (47).
7. The device according to claim 6, characterized in that at the transition from the grommet insertion opening (46) to the mounting sleeve passage opening (47), the grommet stop (49) is formed in that the grommet insertion opening (46) has a larger cross-section than the mounting sleeve passage opening (47).
8. The device according to claim 7, characterized in that the grommet stop (49) has a wedge (51) extending around the mounting sleeve passage opening (47) and being aligned opposite to the direction of the tractive force.
9. The device according to claim 7 or 8, characterized in that with regard to its longitudinal axis aligned in the direction of the tractive force, the grommet receptacle is divided in a sector-like manner into grommet receptacle sectors (42), wherein the grommet receptacle sectors (42) are pushed by a spring element (43) toward the longitudinal axis.
10. The device according to claim 9, characterized in that the cavity (41) is formed in the region of the grommet insertion opening (46) for positively receiving the grommet (01) to be mounted, wherein the spring element (43) has an elasticity region which allows an expansion of the grommet receptacle sectors (42) relative to one another which follows an expansion of the grommet (01) to be mounted caused by the mounting sleeve (03) passing through.
11. The device according to claim 9 or 10, characterized in that the spring element is formed by one or a plurality of spiral spring windings (43) which circumferentially enclose the grommet receptacle about the longitudinal axis of the latter.
12. The device according to any one of the claims 1 to 11, characterized in that the tractive device comprises a drawbar on which a blocking device is movably arranged which blocks in the direction of the tractive force and which can be moved via a pivotable hand lever in the direction of the tractive force.
13. The device according to claim 12, characterized in that the hand lever is pivotably supported on a lever shaft by which means the hand lever is divided into a feed lever engaging on the blocking device and into a handle, wherein the angle between the hand lever and the feed lever is less than 180°, and in the actuated state, the hand lever is aligned parallel to the drawbar.
14. The device according to any one of the claims 1 to 11, characterized in that the tractive device is formed by a pneumatic cylinder or a hydraulic cylinder which can be connected to a pressure pump.
15. The device according to any one of the claims 1 to 11, characterized in that the tractive device is formed by an electromotive drive.

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