EP2191944B1 - cutting device - Google Patents

Description

The invention relates to a device for severing the adhesive bead of a glued disc, with a winding device having a coil for receiving a cutting means, which is suitable for severing the adhesive bead during winding of the cutting means, with a bobbin for winding the cutting means, wherein the bobbin at least an opening for receiving one end of the cutting means.

Such a device is known from WO 2004/103748 A1 known.

However, the known device is driven only with a ratchet and thus not suitable for comfortable work.

In modern motor vehicles, the windshields are fixed by a Klebewulst of a polyurethane adhesive or other suitable adhesive with a connected to the surrounding body flange, which forms a frame for the disc. The adhesive bead consists of such a strong adhesive that in conjunction with the windshield, the mechanical stability of the vehicle is increased. It is understood that the separation of the adhesive due to its high strength and toughness is thus relatively complex.

However, since windshields must be replaced relatively frequently due to stone chipping damage or other damage, it is necessary to provide a suitable windshield outgassing device for each vehicle.

From the DE 10 2006 013 417 A1 are known a motor-driven device and a method for severing the adhesive bead of a glued disc. For this purpose, a cutting wire is first introduced into a gap between the disc and the body flange, the cutting wire around the adhesive bead led around a first end of the cutting wire preferably outside the vehicle, for example on the windshield wiper shaft, fastened, passed the second end of the cutting wire through the adhesive bead and attached to a winding device and the adhesive bead cut by means of the cutting wire by winding with the aid of the winding device.

When using such a device for severing the adhesive bead in windshields, a cutting means in the form of a cutting wire is generally used. The cutting wire is usually made of steel and may have a round, a square, a triangular or a different shaped cross-section. Furthermore, it is conceivable that the cutting means is provided on its surface with a suitable coating or other surface features in order to support the removal process. Finally, instead of using a cutting wire and a plastic or other suitable material existing cutting means is conceivable.

Now, if such a cutting means used in conjunction with a winding device, so it is necessary for a quick and durable use that can fix the cutting means in a simple manner to the winding device and wind up. In addition, in an embodiment of the cutting means as a wire whose considerable stiffness must be taken into account, so that there is no jamming or tangling on the associated coil of the winding device.

From the DE 10 2006 013 417 A1 Furthermore, a device for severing the adhesive bead of a vehicle window with a cutting wire and a motor-driven winding device for winding up the cutting wire is known.

From this, however, no specific information about the inclusion of the cutting wire on the winding device can be removed.

Against this background, the invention has the object to improve a device according to the aforementioned type such that the simplest possible and time-saving working with the winding device is possible.

This object is achieved in that the winding device is driven by a motor and that a spring-loaded latch for fixing the bobbin on the bobbin axis is provided on the coil axis.

The object of the invention is completely solved in this way.

According to the invention, a particularly simple and power-saving operation is made possible by the motor drive of the cutting means. Since a spring-loaded lock for fixing the bobbin on the bobbin axis is provided on the bobbin axis, a bobbin can be used with a coiled cutting means, which can be easily and quickly attached to the winding device and released from it. Thus, a particularly simple and fast work is guaranteed.

The shape of the bobbin itself is of no importance for the entrainment of the cutting means in the opening.

The bobbin may be cylindrical in its simplest embodiment, for example, and have a bore for entrainment of one end of the cutting means. Alternatively, the bobbin may be approximately penetrated by a slot-shaped opening.

Advantageously, however, the bobbin has a plurality of segments which together form an outer contour for receiving a winding of the cutting means and between which at least one intermediate space is formed.

In this way, one end of the cutting means can be inserted into one of the interstices, so that a simple insertion or fastening of the end of the cutting means to the reel body is made possible.

In an advantageous embodiment of this embodiment, the bobbin on a plurality of web-shaped segments, which are arranged in the radial direction with uniform angular intervals to each other on a concentric to the axis of rotation of the coil circle.

In this way, a particularly simple and quick attachment of one end of the cutting means on the bobbin is made possible, since regardless of the angular position of the bobbin, the end can be inserted into one of the many spaces between the web-shaped segments. If subsequently the winding device is actuated, the result is a simple and safe entrainment of the cutting means on the bobbin.

According to a further embodiment of the invention, the bobbin consists of at least two parts which are connectable to each other.

This is particularly advantageous for the handling of cutting means which have a relatively high inherent rigidity, that is to say consist of wire. Thus, a slight decrease and attachment of the bobbin including cutting means can be achieved on a coil axis. Also result manufacturing advantages, since the bobbin so easier to manufacture. The parts may optionally be mechanically connected, e.g. be screwed. Alternatively, however, the various parts of the bobbin may also be releasably connected to each other.

According to a further embodiment of the invention, the bobbin on two flanged wheels which define a coil chamber for receiving a winding of the cutting means.

According to a further embodiment of the invention, the coil has a removable lid.

By these measures, the wound on the coil cutting means can be secured. Also, easy accessibility is possible.

The coil has according to a further embodiment of the invention, a coil axis on which the bobbin is releasably secured.

In this way, the bobbin can be fastened together with a winding of the cutting means on the coil axis or detached therefrom. This has the advantage that the cutting means can be removed together with the bobbin from the winding device, for example, to be disposed of. So it must not be removed from the work area the entire winding device.

According to a further embodiment of the invention, the coil has a coil axis to which a lid is attached.

Thus, a recorded on the bobbin winding can be protected.

According to a further embodiment of the invention, a preferably spring-loaded latch for fastening the lid is provided on the coil axis.

By this feature, a particularly high level of comfort in the operation of the coil is ensured, since both the lid can be connected in a simple manner with the coil axis and can be solved therefrom.

According to a further embodiment of the invention, the latches for fixing the bobbin and lid on the coil axis cooperate such that the bobbin is removable together with the lid of the coil axis.

In this case, the arrangement is preferably made such that after a release of the coil axis, a two-part bobbin can be opened.

By these measures, there is the advantage that the bobbin can be fixed together with the lid and a coil received thereon on the coil axis or can be removed therefrom. After removal of bobbin with cover from the bobbin axis, the two-part bobbin can be opened to gain access to the cutting means wound thereon.

It is understood that a coil with a coiled on the bobbin cutting means can also be used interchangeable as a cartridge together with a suitable winding device.

It is understood that the features of the invention mentioned above and those yet to be explained below can be used not only in the particular combination indicated, but also in other combinations or in isolation, without departing from the scope of the invention.

Figur 1

eine erste Ausführung einer erfindungsgemäßen Spule mit einem zylindrischen Spulenkörper, der von einem Schlitz durchsetzt ist;

Figur 2

eine zweite Ausführung einer erfindungsgemäßen Spule mit einem zylindrischen Spulenkörper, in dem eine Öffnung zur Aufnahme eines Endes des Schneidmittels vorgesehen ist;

Figur 3

eine besonders bevorzugte Ausführungsform einer erfindungsgemäßen Spule mit einer Vielzahl ein Einzelsegmenten, zwischen denen Zwischenräume zur Aufnahme eines Endes des Schneidmittels gebildet sind;

Figuren 4 bis 9

weitere Abwandlungen einer erfindungsgemäßen Spule, bei denen der Spulenkörper aus Einzelsegmenten verschiedener Formen zusammengesetzt ist, so dass sich unterschiedliche Zwischenräume zur Aufnahme eines Endes des Schneidmittels ergeben;

Figur 10

eine Ansicht einer weiteren Ausführungsform einer erfindungsgemäßen Spule;

Figur 11

einen Schnitt durch die Spule gemäß Figur 10;

Figur 12

eine Explosionsdarstellung zweier Spulenhälften, aus denen eine Spule zusammengesetzt ist;

Figur 13

eine teilweise geschnittene Ansicht einer weiteren Ausführung einer erfindungsgemäßen Spule, die zweiteilig ausgebildet ist und mit Federrastmechanismen zur Befestigung von Deckel und Spulenkörper auf einer Spulenachse versehen ist und

Figur 14

eine Detailansicht einer der beiden Sicherungsfedern mit zugeordnetem Drücker gemäß Figur 13.

Further features and advantages of the invention will become apparent from the following description of preferred embodiments with reference to the drawings. Show it:

FIG. 1

a first embodiment of a coil according to the invention with a cylindrical bobbin, which is penetrated by a slot;

FIG. 2

a second embodiment of a coil according to the invention with a cylindrical bobbin in which an opening for receiving one end of the cutting means is provided;

FIG. 3

a particularly preferred embodiment of a coil according to the invention with a plurality of individual segments, between which gaps are formed for receiving one end of the cutting means;

FIGS. 4 to 9

Further modifications of a coil according to the invention, in which the bobbin is composed of individual segments of different shapes, so that there are different spaces for receiving one end of the cutting means;

FIG. 10

a view of a further embodiment of a coil according to the invention;

FIG. 11

a section through the coil according to FIG. 10 ;

FIG. 12

an exploded view of two coil halves, of which a coil is composed;

FIG. 13

a partially sectioned view of another embodiment of a coil according to the invention, which is formed in two parts and is provided with spring detent mechanisms for fixing the lid and bobbin on a coil axis and

FIG. 14

a detailed view of one of the two safety springs with associated pusher according to FIG. 13 ,

In FIG. 1 is a simple basic form of a coil according to the invention shown and designated by the numeral 10 in total. The coil 10 has a cylindrical bobbin 12, which is penetrated in the radial direction by a slot-shaped opening 16. The bobbin 12 thus consists of two segments 18 which are separated by the slot-shaped opening 16 from each other. On its one side, the bobbin 12 is bounded by a flanged wheel 14. A flanged disc provided at the opposite end is for better visibility FIG. 1 not shown.

The slot-shaped opening 16 allows easy threading one end of a cutting means and the subsequent winding upon actuation of an associated winding device on which the bobbin 12 is received. The thickness of the opening 16 is dimensioned to be slightly larger than the thickness of the male cutting means, resulting in easy threading of the cutting means and immediate entrainment upon actuation of the winder. The cutting means has a cross section that is only slightly smaller than the thickness of the opening. Ideally, the cross-section is so large that the cutting means can just be inserted, but is maximally so large that the inserted cutting means is bent.

A bending or bending stops the cutting means in the first step on or on the bobbin, when the winding device is first operated after threading. Such a recording of the cutting means on the winding body is particularly possible in the execution of the cutting means in wire form, since this results in a kinking.

If the cutting means is not wire-shaped, but consists e.g. made of plastic, so some additional measures are necessary to ensure attachment of the cutting means to the bobbin 12. For this purpose, if necessary, e.g. a loop may be used which is attached to an associated element, such as a web.

In FIGS. 2 to 9 A number of alternative embodiments of the coil are shown and generally designated by the numerals 10a to 10h.

In the coil 10a according to FIG. 2 the bobbin 12 is also cylindrical. However, in this embodiment, instead of a slot-shaped opening 16, a cylindrical opening or bore 16 is provided.

In the total designated by 10b embodiment according to FIG. 3 the bobbin 12 consists of a total of twenty segments 18 which are arranged at uniform angular intervals to each other on a circle 15 concentric with the axis of rotation 13 of the coil 10b. The segments 18 widen from the inside to the outside and are closed on their inside and on the outside by a respective rounding. Between the segments 18, gaps or openings 16 are formed whose gap dimension is based on the thickness of the cutting means used 19 is tuned, such that, for example, a cutting means can be introduced with a thickness of less than 1 mm. Through the outer periphery of the segments 18, a surface of a winding body is formed, on which the cutting means 19 can be wound up.

In detail, the design and surface of the bobbin 12 are not critical. It is only important that between the individual segments 18 at least one opening 16 or an intermediate space is formed, in which the cutting means 19 can be introduced.

In the FIGS. 4 to 9 only some of a variety of conceivable variants in the embodiment of the bobbin 12 are shown.

In the coil 10c according to FIG. 4 consists of the bobbin 12 of four cube-shaped segments 18 which are separated by intervening slot-shaped openings 16.

In the execution according to FIG. 5 The coil 10d has a bobbin 12 which is composed of triangular segments 18, which are separated from one another by slot-shaped webs 16.

In the execution according to FIG. 6 The coil 10e has a total of eight cylindrical segments 18 which are arranged on a circle concentric with the axis of rotation 13. Between the adjacent segments 18, in turn, gaps or openings 16 are formed into which one end of the cutting means 19 can be inserted.

According to FIG. 7 For example, the spool 10f has a cylindrical base body which is divided into six equal individual segments 18 by a total of three radially extending slots or openings 16.

In the execution according to FIG. 8 For example, the coil 10g has a bobbin 12, again consisting of six segments 18, which are divided by three slot-shaped openings 16. Deviating from a cylindrical basic shape according to FIG. 7 However, the segments 18 expand towards the flange 14, so that there is an oblique overall surface.

In the execution according to FIG. 9 For example, the coil 10h has a bobbin 12 with a rounded surface for receiving a winding. Also, this bobbin is divided by three slit-shaped openings 16 into six equal segments 18.

In all of the aforementioned representations of a coil according to the invention, the associated second flanged wheel has been dispensed with for better visibility.

It is understood that in addition to the illustrated embodiments, a plurality of further embodiments of a bobbin 12 is conceivable. For example, it does not have to be rotationally symmetrical, but it may also be non-circular, e.g. be oval.

The coil according to the invention is provided for connection to a winding device for severing the adhesive bead of a vehicle window. Such a winding device is for example from the DE 10 2006 013 417 A1 known.

To cut an adhesive bead of a glued disc, this is first the cutting means in a gap between the disc and the frame on which the disc is glued, introduced, the cutting means around the adhesive bead led around, a first end of the cutting means attached, the second end the cutting means passed through the adhesive bead and attached to a winding device. Subsequently, the adhesive bead is severed by means of the cutting means by winding on the spool.

It is understood that such a device, which is particularly suitable for cutting through the adhesive bead in windshields, can also be used for severing the adhesive bead in any other disks, as they occur, for example, on buildings, railway trains, cable car cabins, aircraft and ships.

Another embodiment of a coil according to the invention is in the FIGS. 10 and 11 represented and designated 10i in total. Here, a bobbin 12 is provided, which consists of segments 18 according to the in FIG. 3 Form shown exists. The bobbin 12 is integrally formed at its one end with a flanged wheel 14. The bobbin 12 also has a removable lid 22. Both the flange 14 and the lid 22 are penetrated by a central opening 20 and 24, respectively, to allow the attachment of the coil 10i on an associated coil axis (not shown). Between the segments 18, the flanged wheel 14 and the cover 22, an annular coil chamber 26 is formed, which serves to receive a winding of the cutting means 19.

According to FIG. 10 an opening 28 is provided in the lid 22, which allows a supply of the cutting means 19 in the bobbin 26 and a settlement of the bobbin 26.

In FIG. 12 is a further modification of a coil according to the invention generally designated 10j.

The coil 10j is composed of two parts 30, 32, to each of which segments 18 of FIG. 3 known form are provided. On both sides of the coil 10j is completed by a flange 14 and 34, respectively. The two parts 30, 32 have mutually associated centering elements 33, which engage in respectively assigned counter-elements to each other part when the two parts 30, 32 are connected to each other. The two parts 30, 32 could be permanently connected to each other, for example by screwing. Preferred is instead However, a locking connection between the two parts, as in the following with reference to FIGS. 13 and 14 is explained in more detail.

FIG. 13 shows a generally designated 10k coil in two-part design with a bobbin 12 and a removable cover 22 in an enlarged view. The coil 10k is mounted on a spool shaft 40 which is fixedly connected to the winding device (not shown) to be driven in a suitable manner by a motor.

On the spool shaft 40, a base 60 is rotatably mounted on a bearing 62. On the spool shaft 40, a coil body, generally designated 12, is further detachably fastened, on which a cover 22 is held. The bobbin 12 is fixed to the coil axis 40 by means of a spring-loaded latch 42. A portion 30 of the two-part bobbin 12 is also releasably secured by a spring-loaded latch 54 on the other part 32.

The two parts 30, 32 of the bobbin 12 correspond in their construction of the previously with reference to FIG. 12 explained type. They complement each other to a common bobbin 12 and are centered about centering 33 with each other.

Between the part 30 and the part 32 in turn an annular coil chamber 26 is included, which serves to receive a winding of the cutting means 19. In the lid 22, in turn, an opening 24 is provided, through which the cutting means 19 can be fed into the coil chamber 26 and unwound from this.

The lid 22 is rotatably fixed relative to the spool axis 40 via a bearing 64 on the bobbin 12.

The outer end of the coil axis 40 is conical. At this conical conclusion, a circumferential groove 47 connects, in which a securing spring 48th engages, which is fixed to an associated pusher 46. The pusher 46 is a central, substantially cup-shaped part, which is biased by a coil spring 44 in a basic position to the outside. If the pusher 46 is pressed against the bias of the coil spring 44, the securing spring 48 is released from the circumferential groove 47 and reaches an associated inclined surface 52 of a holding element, which is fixed to the part 32 of the bobbin 12.

In this way, the axial securing of the bobbin 12 is released on the coil axis 40, so that the bobbin 12 can be removed together with the lid 22 held thereon by the coil axis 40. On the coil axis 40, only the base 60 then remains on the bearing 62.

If the bobbin 12 is removed from the bobbin axis 40, then another pusher 58 is accessible from the outside at the end of the bobbin 12 facing the bearing 62. This pusher 58 is part of a spring-loaded latch 54, with which the part 30 is fixed to the part 32 of the bobbin 12.

In FIG. 14 the pusher 58 is shown with the associated locking spring 56 in detail. The securing spring 56 is basically circular and has two legs bent parallel to one another. These legs engage in an associated circumferential groove 57 at the end of the part 32 of the bobbin 12 a. If the securing spring 56 is moved by the pusher 58 in the direction of the outer end of the coil 10k, the ends of the securing spring 56 are released from the annular groove 57, so that now the part 30 of the part 32 which is connected to the lid 22, can be removed. The cutting means 19 can now be removed from the bobbin 26. For assembling the coil, the two parts 30, 32 are reassembled, which is supported by the securing spring 56 and the inclined plane 59. As soon as the ends of the spring element 56 enter the circumferential groove 47, there is a latching or locking. Now, the entire unit again, the coil axis 40 is pushed and locked by the spring-loaded latch 42 again.

The securing spring 48 has a shape corresponding to the shape of the securing spring 56. Here, too, a locking takes place as soon as the two ends of the securing spring 48 again engage in the circumferential groove 47.

Claims (12)

1. A coil for a winding-up device adapted for winding up a cutting means (19) used for cutting through an adhesive bead of a bonded-on pane, having a coil body (12) for winding up the cutting means (19), wherein the coil body (12) is provided with at least one opening (16) for taking up one end of the cutting means (19), and wherein the winding-up device is motor-driven, characterized in that on the coil axis (40) a spring-loaded locking mechanism (54) is provided on the coil axis (40) for fixing the coil body (12) on the coil axis (40).
2. The coil of claim 1, characterized in that the at least one opening (16) is configured as a cylindrical bore or as a slot.
3. The coil of claim 1 or claim 2, characterized in that the coil body (12) is passed in radial direction by at least one slot-like opening (16).
4. The coil as defined in any of the preceding claims, characterized in that the coil body (12) comprises a plurality of segments (18) which together form an outer contour suitable for receiving the wound-up cutting means (19) and between which at least one space (16) is formed.
5. The coil of claim 4, characterized in that the coil body comprises a plurality of web-shaped segments (18) that are arranged, in radial direction, at equal angular spacings one relative to the other along a circle (15) concentric to the axis of rotation (13).
6. The coil as defined in any of the preceding claims, characterized in that the coil body (12) has two flanges (14, 34) that define a coil chamber intended to receive the wound-up cutting means (19).
7. The coil as defined in any of the preceding claims, characterized in that the coil body (12) consists of at least two parts (30, 32) that can be connected one with the other.
8. The coil as defined in any of the preceding claims, characterized by a detachable cover (22).
9. The coil as defined in any of the preceding claims, characterized by a coil axis (40) on which the coil body (12) is detachably fastened.
10. The coil as defined in claim 9, characterized by a coil axis (40) on which a cover (22) is detachably fastened.
11. The coil as defined in claim 10, characterized in that the locking mechanisms (42, 54) that serve to fix the coil body (12) and the cover (22) on the coil axis (40) coact in such a way that the coil body (12) can be detached from the coil axis (40) together with the cover (22).
12. The coil of claim 11, characterized in that the locking mechanisms (42, 54) that serve to fix the coil body (12) and the cover (22) on the coil axis (40) coact in such a way that the two-part coil body (12) can be opened after having been released from the coil axis (40).

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