CN116788133B

CN116788133B - Pulling device for zippers

Info

Publication number: CN116788133B
Application number: CN202210263274.4A
Authority: CN
Inventors: 奥山光
Original assignee: Shanghai Ykk Zipper Co ltd
Current assignee: Shanghai Ykk Zipper Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2026-02-17
Anticipated expiration: 2042-03-17
Also published as: CN116788133A

Abstract

The present disclosure relates to a pulling apparatus for a slide fastener, including a pulling cable for connection with a slider of the slide fastener, a guide element for guiding the pulling cable to adjust an orientation of the pulling cable, and a winding device for winding the pulling cable to pull the slider. The pulling device is configured to bring a portion of the pulling cable located between the slider and the guide element into a substantially parallel orientation with a section of the zipper extension path through which the slider is to travel, or to deviate the orientation between the two by less than a predetermined value, by means of the guide element during pulling. By means of the guiding elements, the traction device of the present disclosure can adaptively adjust the orientation of the traction cable according to the change in orientation of the sections of the zipper extension path of the zipper. This not only helps the slide fastener to be easily pulled up, but also prevents damage to the slide fastener at the position where the orientation of the slide fastener extension path changes.

Description

Traction device for zipper

Technical Field

The present disclosure relates generally to the field of installation of automotive cushion covers. More particularly, the present disclosure relates to a traction device for a zipper, which can mount a car cushion cover on a car cushion by pulling a zipper provided on the car cushion cover.

Background

In the automotive field, an automotive cushion cover is typically detachably mounted on an automotive cushion. In order to facilitate the installation and the disassembly of the automobile cushion cover, a zipper is usually sewn on the automobile cushion cover. For example, as shown in fig. 1a, the back of the car cushion cover 1 may be sewn with a zipper 2. By pulling on or pulling off the slide fastener 2, the car cushion cover 1 can be mounted on the car cushion or the car cushion cover 1 can be removed from the car cushion. However, since the dimensions of the car seat cover and car seat are generally very close, the lateral tension between the two parts 3 of the zipper is generally very large after the car seat cover 1 is put on the car seat, which makes it very difficult to pull the zipper 2 by hand.

In the prior art, it is common to install the car cushion cover 1 by providing a rope or the like on the slider 4 (shown in fig. 1 b) of the slide fastener 2 and then pulling the rope by a pulling device to pull the slide fastener 2. However, current traction devices suffer from certain drawbacks. On the one hand, the sewing paths of the zippers on the automobile cushion sleeves produced by each automobile manufacturer are different, and on the other hand, the sewing paths of the zippers or the extension paths of the zippers on the automobile cushion sleeve 1 are also in a curved shape due to the fact that the automobile cushion itself is provided with curved lines, so that the zippers are not in a straight line (as shown in fig. 1a, the zippers 2 are arranged in a curve on the automobile cushion sleeve 1). These factors make it difficult to pull the slide fastener 2 even with the existing pulling device. In some cases, the pulling device may also be susceptible to damage or breakage of the slide fastener 2 at the location where the orientation of the slide fastener extension path changes.

Further, for aesthetic reasons, more and more car seat covers are beginning to use concealed zippers. Compared with the traditional zipper, the use of the invisible zipper increases the difficulty of installing the automobile cushion cover. Accordingly, there is a need for improvements to existing traction devices.

Disclosure of Invention

It is an object of the present disclosure to overcome at least one or more of the above-mentioned problems or other problems with the prior art.

The present disclosure provides a traction device for a slide fastener. The pulling device comprises a pulling cable for connection with a zipper head of a zipper, a guiding element for guiding the pulling cable to adjust the orientation of the pulling cable, and a winding device for winding the pulling cable to pull the zipper head, wherein the pulling device is configured to bring a portion of the pulling cable between the zipper head and the guiding element into a substantially parallel orientation with a section of a zipper extension path through which the zipper head is to travel, or to bring an orientation deviation between the portion of the pulling cable between the zipper head and the guiding element and the section of the zipper extension path through which the zipper head is to travel, by means of the guiding element, to be less than a predetermined value during pulling.

By means of the guiding elements, the traction device according to the present disclosure can adaptively adjust the orientation of the traction cable according to the change of orientation of the sections of the zipper extension path of the zipper. This not only helps the slide fastener to be easily pulled up, but also prevents damage to the slide fastener at the position where the orientation of the slide fastener extension path changes.

According to one embodiment of the present disclosure, the traction device comprises a plurality of said guiding elements, each guiding element being adapted to guide the traction cable in a different orientation than the other guiding elements.

According to one embodiment of the present disclosure, the traction device is provided with only one of the guide elements, which is capable of one or more of horizontal movement in a horizontal direction, rotational movement about a vertical axis, vertical movement in a vertical direction, and pitching movement about a horizontal pivot.

According to one embodiment of the present disclosure, the traction means comprises an actuator for actuating the winding device.

According to one embodiment of the present disclosure, the traction device includes an actuator controller for controlling actuation of the actuator.

According to one embodiment of the present disclosure, the actuator controller is a foot pedal or remote control.

According to one embodiment of the present disclosure, the actuator is a motor.

According to one embodiment of the present disclosure, the actuator is a stepper motor or a servo motor.

According to one embodiment of the present disclosure, the traction device further comprises a console for placing or positioning the work product.

According to one embodiment of the present disclosure, the traction device comprises a clamping element for clamping the work product on the work table.

According to one embodiment of the present disclosure, the guiding element comprises a guiding wheel, the traction cable extending around the outer circumference of the guiding wheel.

According to one embodiment of the present disclosure, the guide element is movably mounted on a guide rail such that the guide element is movable along the extension direction of the guide rail.

According to one embodiment of the present disclosure, the guide element includes a vertically extending base and a guide on the base, the guide being configured in an "L" shape and including a vertical extension and a horizontal extension.

According to one embodiment of the present disclosure, the base includes a rotating member such that the guide portion is rotatable about a central axis of the base.

According to one embodiment of the present disclosure, the base includes a rotation motor to drive the guide to rotate about a central axis of the base.

According to one embodiment of the present disclosure, the vertical extension and the horizontal extension are integrally formed.

According to one embodiment of the present disclosure, the vertical extension and the horizontal extension are pivotally connected such that the horizontal extension is capable of pitching movement about a pivot axis relative to the vertical extension.

According to one embodiment of the present disclosure, the winding device is provided within a winding assembly that includes a spacing element to limitedly wind the traction cable onto the winding device without departing from the scope of the winding device.

According to one embodiment of the present disclosure, the spacing element comprises a support plate provided with an elongated slot and a movable element located above the support plate, the movable element comprising a central hole, the traction cable extending through the central hole of the movable element and the elongated slot of the support plate.

According to one embodiment of the present disclosure, the traction device further comprises a control apparatus for controlling the traction device.

It is noted that aspects of the present disclosure described with respect to one embodiment may be incorporated into other and different embodiments, although not specifically described with respect to the other and different embodiments. In other words, all embodiments and/or features of any embodiment may be combined in any way and/or combination, provided that they are not mutually contradictory.

Drawings

Exemplary embodiments will now be described with reference to the schematic drawings. Wherein:

FIG. 1a schematically illustrates an automotive seat cushion cover adapted to be mounted on an automotive seat cushion;

FIG. 1b schematically illustrates a zipper adapted to be sewn to an automobile cushion cover;

FIG. 2a schematically illustrates a traction device for a zipper according to one embodiment of the present disclosure;

FIG. 2b schematically illustrates a concealed slide fastener adapted to be sewn to an automobile cushion cover and adapted to be pulled by the pulling device shown in FIG. 2a, in accordance with one embodiment of the present disclosure;

FIG. 2c schematically illustrates a guide element adapted to be mounted on the traction device shown in FIG. 2a, according to one embodiment of the present disclosure;

Fig. 3a and 3b schematically show a pulling device with a plurality of guide elements mounted thereto in front and side views, respectively, and illustrate the pulling performed by the pulling device at different zipper extension path sections;

FIG. 4 schematically illustrates a traction device mounted with a plurality of guide elements as shown in FIG. 2c, according to one embodiment of the present disclosure;

FIG. 5 is a front view of a traction device for a zipper according to another embodiment of the present disclosure;

FIG. 6 is a top view of the pulling device for the slide fastener shown in FIG. 5;

FIG. 7 is a side view of the pulling device for the slide fastener shown in FIG. 5;

Fig. 8 illustrates a specific structure of a guiding element for a traction cable according to another embodiment of the present disclosure;

FIG. 9 illustrates a clamping element according to one embodiment of the present disclosure;

fig. 10 illustrates a winding assembly according to one embodiment of the present disclosure.

It should be understood that throughout the drawings, like reference numerals refer to like elements. In the drawings, the size of some of the features may be altered and not drawn to scale for clarity.

Detailed Description

Exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings. It should be understood, however, that the present disclosure may be presented in many different ways and is not limited to the embodiments described below. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide yet additional embodiments. Throughout the drawings, like reference numbers indicate identical or functionally identical elements.

It should be understood that the terminology used in the description is for the purpose of describing particular embodiments only, and is not intended to be limiting of the disclosure. All terms used in the specification, unless otherwise defined, have the meanings commonly understood by those skilled in the art. Well-known functions or constructions may not be described in detail for brevity or clarity.

As used in this specification, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. The use of the terms "comprising," "including," and "containing" in the specification mean that the recited features are present, but that one or more other features are not excluded. The use of the phrase "and/or" in the specification includes any and all combinations of one or more of the associated listed items.

In the description, an element is referred to as being "on," "attached" to, "connected" to, "coupled" to, "contacting" or the like another element, and the element may be directly on, attached to, connected to, coupled to or contacting the other element or intervening elements may be present.

In the description, the terms "first," "second," "third," and the like are used for ease of description only and are not intended to be limiting. Any feature expressed as "first," "second," "third," etc. is interchangeable.

In the specification, spatial relationship words such as "upper", "lower", "front", "rear", "top", "bottom", and the like may describe the relationship of one feature to another feature in the drawings. It will be understood that the spatial relationship words comprise, in addition to the orientations shown in the figures, different orientations of the device in use or operation. For example, when the device in the figures is inverted, features that were originally described as "below" other features may be described as "above" the other features. The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the relative spatial relationship will be explained accordingly.

Referring to fig. 2a, a traction device 10 for a zipper is shown according to one embodiment of the present disclosure. The traction device 10 may be used to pull a zipper 11 sewn to the car seat cover 1 to assist in mounting the car seat cover 1 to a car seat. Of course, the present disclosure is not limited thereto. The pulling device 10 may be used to pull the zipper 11 mounted or sewn on any component, and the zipper 11 may be any suitable type of zipper, such as a conventional zipper or a concealed zipper, etc. Fig. 2b shows a specific construction of a zipper 11 adapted to be mounted on a car cushion cover 1. The slide fastener 11 shown in fig. 2b is a concealed slide fastener, which includes a first flexible member 101, a second flexible member 102, fastener elements 103 mounted on the first flexible member 101 and the second flexible member 102, respectively, and a slider 12. When the slide fastener 11 is pulled up, the fastener elements 103 of the slide fastener 11 are not visible from the outside.

The pulling device 10 may comprise a pulling cable 13 for connection with the slider 12 of the zipper 11, a guiding element 14 for guiding the pulling cable 13 to adjust the orientation of the pulling cable 13, and a winding device 15 for winding the pulling cable 13 to pull the slider 12.

By means of the guiding elements 14, the traction device 10 according to the present disclosure can adaptively adjust the orientation of the traction cable 13 according to the change of orientation of the sections of the zipper extension path of the zipper 11. In this way, during pulling, the pulling device 10 is able to place the portion of the pulling cable 13 between the slider 12 and the guide element 14 in a substantially parallel orientation with the section of the zipper extension path through which the slider 12 is about to travel, or to orient the portion of the pulling cable 13 between the slider 12 and the guide element 14 with the section of the zipper extension path through which the slider 12 is about to travel less than a predetermined value (e.g., may be less than 15 °, 10 °,5 °, etc.).

Since the portion of the pulling cable 13 located between the slider 12 and the guide element 14 is in a substantially parallel orientation or the deviation of the orientation of both from the orientation of the section of the zipper extension path through which the slider 12 is to travel is less than a predetermined value, the pulling cable 13 is able to not only adjust the orientation of the slider 12 to be substantially coincident with the orientation of the section of the zipper extension path through which the slider 12 is to travel, but is also able to exert a substantial portion of the pulling force on the slider 12 in a direction parallel to the orientation of the section of the zipper extension path through which the slider 12 is to travel. This not only helps the slide fastener 11 to be easily pulled up, but also prevents damage to the slide fastener 11 at a position where the orientation of the slide fastener extending path is changed.

In one embodiment according to the present disclosure, the pull cable 13 may be directly attached to the slider 12 of the zipper 11. In another embodiment according to the present disclosure, as shown in fig. 2b, the pull cable 13 may be connected to the slider 12 of the zipper 11 via the auxiliary connector 104. The auxiliary link 104 may have any suitable configuration, for example, it may include a first link portion 105 for connection with the traction cable 13 and a second link portion 106 for connection with the slider 12 of the zipper 11. The second connecting portion 106 of the auxiliary link 104 may be a hook that may be hooked directly into an opening provided in the slider 12.

In one embodiment according to the present disclosure, the traction device 10 may be provided with only one guiding element 14. In this embodiment, the guiding element 14 can be moved to different positions to steplessly adjust the orientation of the traction cable 13 depending on the orientation of the zipper extension path. This allows traction device 10 to be more flexibly adjusted and thus operate more efficiently.

The guide element 14 may have any suitable configuration. As shown in fig. 2c, in one embodiment according to the present disclosure, the guide element 14 may include a body 141 and a guide pulley 142 mounted on the body 141. The traction cable 13 may extend around the outer circumference of the guide pulley 142 to facilitate traction movement of the traction cable 13. Idler 142 may rotate. The body 141 may be configured in, for example, a "C" shape or a "U" shape and includes arm portions 143 opposite to each other. The arm 143 may be used to prevent the traction cable 13 from sliding out of the body 141.

In another embodiment according to the present disclosure, as shown in fig. 3a, 3b and 4, the traction device 10 may include a plurality of guide elements 14. Each guiding element 14 serves to guide the traction cable 13 in a different orientation than the other guiding elements 14. In particular, in the case where the car seat cover 1 includes a plurality of zippers 11 (for example, the car seat cover 1 shown in fig. 3a includes two zippers 11), two or more guide elements 14 may be provided in the vicinity of each of the zippers 11 for guiding each of the zippers. In the embodiment shown in fig. 3a and 3b, when the traction cable 13 is guided by the first guiding element 14a, the portion of the traction cable 13 located between the slider 12 and the first guiding element 14a is substantially parallel to the substantially vertically extending first section 111 of the zipper extension path or both is less than a predetermined value (as shown in the figures on the left side of fig. 3a and 3 b), and when the traction cable 13 is guided by the second guiding element 14b, the portion of the traction cable 13 located between the slider 12 and the second guiding element 14b is substantially parallel to the obliquely extending second section 112 of the zipper extension path or both is less than a predetermined value (as shown in the figures on the right side of fig. 3a and 3 b). In other embodiments according to the present disclosure, more guide elements 14 may be provided to better accommodate changes in the orientation of the zipper extension path.

Also, as shown in fig. 4, where the traction device 10 includes a plurality of guide elements 14, each guide element 14 may have a structure as shown in fig. 2 c. That is, each guide member 14 may include a body 141 and a guide pulley 142 mounted on the body 141. The traction cable 13 may extend around the outer circumference of the guide pulley 142 to facilitate traction movement of the traction cable 13. Idler 142 may rotate. The body 141 may be configured in, for example, a "C" shape or a "U" shape and includes arm portions 143 opposite to each other. The arm 143 may be used to prevent the traction cable 13 from sliding out of the body 141.

In some embodiments, traction device 10 may also include an actuator 16 for actuating winding apparatus 15. The actuator 16 may be a motor. In particular, the actuator 16 may be a stepper motor. The actuator 16 may be configured to be activated only when an actuation motion is applied by an operator and to be deactivated when the actuation motion is released by the operator. Such an actuator 16 may be advantageous in some circumstances. For example, in some cases, it is necessary to temporarily stop pulling the slide fastener 11 during installation of the car cushion cover 1, to adjust the installation position of the car cushion cover 1 or to clear obstacles on the slide fastener extending path, or the like. To this end, traction device 10 may also include an actuator controller for actuator 16.

In one embodiment according to the present disclosure, the actuator controller may be a foot pedal. When the operator steps on the foot pedal with his foot, the actuator 16 actuates the winding device 15 to wind the pulling cable 13 and pull the slider 12 via the pulling cable 13, and when the operator leaves the foot pedal, the actuator 16 stops actuating the winding device 15 to stop winding the pulling cable 13 and stop pulling the slider 12 via the pulling cable 13.

In another embodiment according to the present disclosure, the actuator controller may be a remote control. When the operator presses a start button on the remote control, the actuator 16 actuates the winding device 15, winding the pull cable 13 and pulling the slider 12 via the pull cable 13, and when the operator presses a stop button on the remote control, the actuator 16 stops actuating the winding device 15.

In one embodiment according to the present disclosure, traction device 10 may also include an operator station 17. The console 17 may comprise a plate-like element adapted to place or position a car seat cushion. However, the present disclosure is not limited thereto. The console 17 may include any other type of element suitable for placing or positioning an automotive seat cushion.

Next, referring to fig. 5 to 7, a specific structure of a pulling device 20 for pulling a slide fastener according to another embodiment of the present disclosure is shown. The traction device 20 may include an operator station 21 for placing or positioning an operating article, such as an automobile seat cushion, a clamping element 22 for clamping the operating article on the operator station 21, a traction cable 23 for connection with a zipper slider of a zipper, a guide element 24 for guiding the traction cable 23 to adjust the orientation of the traction cable 23, a winding assembly 25 for winding the traction cable 23 to pull the zipper slider, and a control device 26 for controlling the traction device 20. Of course, the present disclosure is not limited thereto. Traction device 20 may include more or fewer components depending on the actual needs. For example, traction device 20 may also include an actuator controller 28 for controlling actuation of winding assembly 25. For example, traction device 20 may not include any one or more of console 21, clamping element 22, control device 26, and the like.

In the embodiment shown in fig. 5 to 7, the traction device 20 may be provided with only one guiding element 24. The guide element 24 may be configured to be movably mounted on the guide rail 27 such that the guide element 24 is movable along the extending direction of the guide rail 27, such as horizontally as shown in fig. 5. In addition, the guide element 24 may also be configured to rotate along its central axis such that the guide element 24 can be rotated to any direction. In another embodiment according to the present disclosure, the guide element 24 may also be configured to be able to move vertically up and down in a vertical direction or to tilt up and down about a horizontal pivot. All these features can give the guiding element 24 a greater degree of freedom so that it can more easily steplessly adjust the orientation of the traction cable 23 according to the orientation of the zipper extension path.

Referring to fig. 8, a specific structure of the guide element 24 according to one embodiment of the present disclosure is shown. As shown in fig. 8, the guide member 24 may include a vertically extending base 241 and a guide portion 242 on the base 241. The base 241 may have a cylindrical shape. In one embodiment according to the present disclosure, the base 241 may include a rotating member rotating along a central axis thereof such that the guide 242 can rotate around the central axis of the base 241. In another embodiment according to the present disclosure, the base 241 may include a rotation motor. The rotation motor of the base 241 is configured to drive the guide 242 to rotate about the central axis of the base 241.

The guide portion 242 may be configured in an "L" shape, which may include a vertical extension 243 and a horizontal extension 244. In one embodiment according to the present disclosure, the vertical extension 243 and the horizontal extension 244 of the guide 242 may be integrally formed. In another embodiment according to the present disclosure, the vertical extension 243 and the horizontal extension 244 of the guide 242 may be pivotally connected such that the horizontal extension 244 is capable of pitching movement about a pivot axis relative to the vertical extension 243.

In one embodiment according to the present disclosure, guide element 24 may include one or more guide wheels 245. The traction cable 23 may extend around the outer circumference of the guide wheel 245 to facilitate traction movement of the traction cable 23. The guide wheel 245 may rotate. In the embodiment shown in fig. 8, two guide wheels 245 are provided, one of the guide wheels 245 being provided near the free end of the horizontal extension 244 of the guide portion 242 and the other guide wheel 245 being provided near the top end of the vertical extension 243 of the guide portion 242. More guide wheels 245 may be provided as desired.

Referring to fig. 9, a specific structure of the clamping element 22 according to one embodiment of the present disclosure is shown. The clamping element 22 may include a first clamping portion 221 and a second clamping portion 222. The first clamping portion 221 may be fixedly coupled with the screw 223, and the second clamping portion 222 may be rotatably mounted on the screw 223. The second clamp portion 222 may be rotated about the screw 223 to move the second clamp portion 222 toward or away from the first clamp portion 221 along the extending direction of the screw 223, thereby clamping or releasing an operation product such as an automobile seat cushion. Of course, the present disclosure is not limited to such. The clamping element 22 may have any other suitable configuration.

Referring to fig. 10, a specific structure of the winding assembly 25 according to one embodiment of the present disclosure is shown. The winding assembly 25 may include a winding device 251 for winding the pull cable 23 to pull the slider 12 and an actuator 252 for actuating the winding device 251. The actuator 252 may be a motor. In one embodiment according to the present disclosure, the actuator 252 may be a servo motor. A magnetic powder clutch 253 may be provided between the servo motor and the winding device 251 to stably transmit torque.

In one embodiment according to the present disclosure, the winding assembly 25 may further include a spacing element 254. The stop element 254 is configured to limit the winding of the traction cable 23 on the winding device 251 so that the traction cable 23 does not come out of the range of the winding device 251 during the winding process. As shown in fig. 10, the stop member 254 may include a support plate 2542 provided with an elongated slot 2541 and a movable member 2543 positioned above the support plate 2542. The movable element 2543 may include a central aperture. The traction cable 23 may extend through a central aperture of the movable element 2543 and an elongated slot of the support plate. As the winding device 251 winds the traction cable 23, the movable element 2543 may reciprocate on the support plate 2542 between the two ends of the elongated slot 2541, thereby ensuring that the traction cable 23 is wound on the winding device 251 without departing from the scope of the winding device 251.

The various components of traction device 20 may be controlled by a control device 26. Such as control device 26 may control operation of actuator 252 and/or horizontal or vertical movement, rotation, pitching movement, etc. of guide element 24. In some cases, the guide element 24 may move horizontally or vertically by itself, rotate, or pitch depending on the orientation of the zipper extension path without control of the control device 26.

As mentioned above, the traction device 20 may also include an actuator controller 28 for controlling actuation of the winding assembly 25. In one embodiment according to the present disclosure, actuator controller 28 may be a foot pedal. When the operator steps on the foot pedal, the actuator 252 actuates the winding device 251 of the winding assembly 25 to wind the pull cable 23 to pull the slider via the pull cable 23, and when the operator leaves the foot pedal, the actuator 252 stops actuating the winding device 251 to stop pulling the slider via the pull cable 23. In another embodiment according to the present disclosure, the actuator controller may be a remote control. When the operator presses a start button on the remote controller, the actuator 252 actuates the winding device 251 to pull the slider via the pull cable 23, and when the operator presses a stop button on the remote controller, the actuator 252 stops actuating the winding device 251 to stop pulling the slider via the pull cable 23.

Traction devices 10 and 20 for a zipper according to the present disclosure are described above in terms of a car seat cushion and car seat cushion cover. However, the present disclosure is not limited thereto. The pull devices 10 and 20 for zippers according to the present disclosure may be used to pull zippers mounted on any suitable component or article.

Exemplary embodiments according to the present disclosure are described above with reference to the accompanying drawings. Those skilled in the art will appreciate that various changes and modifications can be made to the exemplary embodiments of the disclosure without departing from the spirit and scope thereof. All changes and modifications are intended to be included within the scope of the present disclosure as defined by the appended claims. The disclosure is defined by the following claims, with equivalents of the claims to be included therein.

Claims

1. A traction device (10, 20) for a slide fastener, comprising:

a pulling cable (13, 23) for connecting with a slider (12) of a slide fastener (11);

A guiding element (14, 24) for guiding the traction cable for adjusting the orientation of the traction cable, the guiding element being movably mounted on a guide rail (27) such that the guiding element can be moved horizontally along the extension direction of the guide rail, and

A winding device (15, 251) for winding the pulling cable to pull the slider;

Wherein the pulling device (10, 20) is configured to bring the portion of the pulling cable between the slider and the guide element into a substantially parallel orientation with respect to the section of the zipper extension path through which the slider is to travel, or to deviate the orientation between the portion of the pulling cable between the slider and the guide element and the section of the zipper extension path through which the slider is to travel by means of a horizontal movement of the guide element (14, 24) during pulling by less than a predetermined value, such that the pulling device is able to adaptively adjust the orientation of the pulling cable in accordance with a change in the orientation of the sections of the zipper extension path of the zipper;

Wherein the guide element (24) comprises a vertically extending base (241) and a guide (242) on the base, the guide being configured in an "L" shape and comprising a vertical extension and a horizontal extension, and

Wherein the vertically extending base (241) comprises a rotation member such that the guide is rotatable about a central vertical axis of the vertically extending base.

2. Traction device (10, 20) according to claim 1, wherein the traction device is provided with only one of the guiding elements (14, 24) which is further capable of one or more of a vertical movement in a vertical direction and a pitching movement about a horizontal pivot.

3. Traction device (10, 20) according to claim 1 or 2, wherein the traction device comprises an actuator (16, 252) for actuating the winding apparatus.

4. A traction device (10, 20) according to claim 3, wherein the traction device comprises an actuator controller (28) for controlling actuation of the actuator.

5. The traction device (10, 20) of claim 4, wherein the actuator controller (28) is a foot pedal or a remote control.

6. Traction device (10, 20) according to claim 1 or 2, wherein the traction device further comprises an operating table (17, 21) for placing or positioning an operating article.

7. The traction device (10, 20) according to claim 6, wherein the traction device comprises a clamping element (22) for clamping the work product on the work table.

8. Traction device (10, 20) according to claim 1 or 2, wherein the guiding element comprises a guiding wheel (142, 245) around the periphery of which the traction cable extends.

9. The traction device (10, 20) of claim 1 or 2, wherein the base includes a rotation motor to drive rotation of the guide about a central axis of the base.

10. Traction device (10, 20) according to claim 1 or 2, wherein the vertical extension and the horizontal extension are integrally formed.

11. The towing attachment (10, 20) in accordance with claim 1 or 2 wherein the vertical extension and the horizontal extension are pivotally connected such that the horizontal extension is capable of pitching movement about a pivot axis relative to the vertical extension.

12. The pulling device (10, 20) as defined in claim 1 or 2, wherein the winding arrangement is provided within a winding assembly comprising a stop element (254) to limitedly wind the pulling cable on the winding arrangement without departing from the scope of the winding arrangement.

13. Traction device (10, 20) according to claim 12, wherein the limiting element comprises a support plate provided with an elongated slot and a movable element located above the support plate, the movable element comprising a central hole, the traction cable extending through the central hole of the movable element and the elongated slot of the support plate.

14. Traction device (10, 20) according to claim 1 or 2, wherein the traction device further comprises a control apparatus (26) for controlling the traction device.