DE102004002150A1 - Pneumatic vehicle tire with integral transponder manufacture involves making an incision into a tire wall without damaging tire cords, inserting transponder and closing the incision before tire vulcanization - Google Patents

Abstract

An incision(6) is made by the blade(11) of a cutter(2) into the tire sidewall(5) to a specific depth. Cutter design ensures that the cut depth is less than the distance between the outer wall of the tire and the tire cords(4) in the wall. A transponder(3) is inserted into the incision(6) which is then closed up to retain the transponder inside the tire wall. The cutter(2) is heated when making the incision(6) during cutting. A transponder(3) is inserted into the tire wall before tire vulcanization, preferably in a tire preform before this makes contact with any mold release agent. A guide roll, whose movement is linked to the cutter movement, may be pressed onto the tire wall at the incision point to close the latter after insertion of the transponder. The cutter may have a holder for a transponder and a transponder ejector for inserting into the tire incision. Cut depth is controlled by a spacer in the form of a guide face on the cutter. An independent claim is included for the transponder locating equipment which includes a cutter able to cut into the tire wall to a distance without breaking into tire cords in the wall and a mechanism for inserting a transponder in to the cut tire wall and closing the incision after location.

Description

The The invention relates to a method for producing a vehicle tire with a arranged in the vehicle side wall transponder according to the preamble of claim 1, and an apparatus for producing a Such vehicle tire according to the preamble of claim 7.

Generic transponder be in the tire for used different tasks. This includes in particular a tire identification, with which an automobile manufacturer automatically captures different tire parameters can. For example, it can be quickly determined from which Tire factory a specific tire was delivered. In addition, a allows such transponder also an air pressure monitoring, a temperature measurement or the measurement of the traveled Mileage of the tire.

Around perform these tasks to be able to exist modern transponders from an electronic component with data acquisition and data processing elements. It also belongs to such a transponder also an energy supply device, sensor elements and a antenna connected to the electronic component. The entire transponder unit From transponder, sensors and antenna is usually in a protective Embedded plastic material and can, for example, as a flexible thinner Be formed strip. In this patent application is simplicity Half the term always used the term transponder, which also includes transponder units with the o.g. Component and feature range may include.

From the DE 101 59 703 A1 For example, a method is known in which the transponder is inserted into the tire only after complete completion of the tire. For this purpose, a rubber cushion with a spacer strip is first arranged on the tire, which is then connected to the transponder. When pulling out of the dummy strip from the tire, the transponder strip is drawn into the tire and then takes its place. This method has the advantage that the transponder is introduced into the rubber pad only after the completion of the tire. As a result, the transponders are not exposed to the high mechanical stresses that occur during conventional tire assembly on the tire building drum, the bombing or vulcanization. A disadvantage of this solution is that a relatively high design effort is required, and that as an additional part of the rubber cushion is needed, which increases the manufacturing cost.

In front In this background, it is therefore the object of the invention, a Method and device for introducing the transponder into to propose the tire at the completion of the same.

The solution this task arises for the Manufacturing method of the features of claim 1 and for the Manufacturing device of the features of claim 7. Advantageous Embodiments and developments of the invention are the dependent claims.

Of the The invention is based on the finding that the transponder is particularly can be easily inserted into the sidewall of the vehicle tire, if the side wall with a cutting device with a penetration depth A is cut, which is smaller than the distance B of the tire strength member of the outside of the vehicle tire, the transponder is then in the incision is inserted and then closed again.

Of the Advantage of the invention is that the introduced into the tire Incision does not affect the strength of the tire and no special extra cost increasing Components needed become. Furthermore, the invention offers the advantage that the point at which the transponder is to be inserted in the tire, otherwise chosen freely can be.

Of the Cutting process leaves facilitate when the cutting device is heated, wherein in an advantageous manner, the heating also for closing the Nick can be used.

The Means for limiting the penetration depth of the cutting device can preferably a leadership role be in an applied pressure on the sidewall of the vehicle tire exercised. This leadership presses the cutter while in the side wall and thus determines the penetration depth of the cut.

About the Height of Pressure and / or the distance of the guide roller from the cutting device the penetration depth can be varied. It is true that the higher the Contact pressure and the closer the leadership at the cutting device, the greater the penetration depth of the Cutting device in the tire sidewall.

The movement of the guide roller can be coupled to the movement of the cutting device, so that a substantially constant distance to Cutting device is given and sets a constant depth of cut from a certain depth of penetration.

The leadership can preferably after the cutting process and the insertion of the transponder also for closing be used in the incision in which this exercise under a Contact pressure over rolled over the incision.

In Preferred embodiment of the method according to the invention is the transponder before vulcanization of the vehicle tire into the tire sidewall used. In this context, it will be particularly advantageous viewed when the transponder is inserted into the green tire, before it wets with a release agent before vulcanization becomes. This release agent is known to facilitate the removal of a vulcanized Tire from the vulcanization mold. The above procedure is especially advantageous because the place of release agent wetting usually a bundling point in the tire production process represents in the material flow.

According to claim 7, the invention also relates to a device for producing a vehicle tire with a reinforcement and a transponder arranged in a side wall of the vehicle tire, wherein the strength carrier at a distance B from the outside the vehicle side wall is arranged.

• – die Eindringtiefe A der Schneideinrichtung auf ein Maß kleiner als der Abstand B begrenzbar ist,
• – der Transponder in den so gebildeten Einschnitt einlegbar ist,
• – und der Einschnitt wieder verschließbar ist.

To achieve the object, this device is characterized in that it comprises a cutting device, with which the side wall can be incised via a penetration depth A, and that means are provided, with which

• The penetration depth A of the cutting device can be limited to a dimension smaller than the distance B,
• - the transponder can be inserted in the recess thus formed,
• - And the incision is closed again.

In Development of the device is the cutting device with a Heating device equipped or at least operatively connected.

moreover can the device of the invention also be designed so that these with means for limiting the penetration depth A comprises a guide roller exerting compressive forces on the side wall, being the leader preferably at least during the cutting operation in the cutting direction in front of the cutting device is arranged.

The Means for limiting the penetration depth can in a preferred manner by a spacer, preferably by a guide surface on the Cutting device be formed.

Further can at the cutting device a receiving device for the transponder and a cooperating ejection device may be provided. This makes the transponder after cutting particularly easy at the for him be positioned in the tire provided without the Cutting device from the incision be pulled out before got to. This will be the cutting process and placement of the transponder summarized into a single work step.

to Clarification invention, the description is attached to a drawing. In this show in various schematic cross-sectional views

1 a vehicle tire and a cutting device with a spacer,

2 a vehicle tire and a cutting device with a spacer during the cutting process,

3 a vehicle tire and a cutting device with a guide roller during insertion of the transponder, as well

4 a vehicle tire and a cutting device with the guide roller when closing the incision.

Accordingly, shows 1 a vehicle tire 1 with a side wall 5 and a tread 12 in which at least one strength carrier 4 is arranged. The strength carrier 4 can be made of textile cord or steel fibers and is in the sidewall 5 at a distance B from the outside of the side wall 5 positioned. This gives the strength element 4 the vehicle tire 1 its required lateral strength.

Next to the vehicle tire 1 is a cutting device 2 to recognize. The cutting device 2 has a guide surface 10 and a cutting edge 11 , the latter being bead-shaped from the guide surface 10 at a distance A in the direction of the vehicle side wall 5 projects.

In 2 is the cutting device 2 shown in a different view during the cutting process. The cutting device 2 cuts with the cutting edge 11 while in the side wall 5 and thereby forms the incision 6 , The cutting depth of the cutting edge 11 is limited by the guide surface 10 so that the strength carrier 4 is not injured during the cutting process.

In the nick 6 then becomes the transponder 3 positioned, which is then reclosed with known in the art adhesive or vulcanization.

In 3 an alternative embodiment of the invention is shown in which the incision 6 in the sidewall 5 with the cutting device 2 is shown. In the cutting direction in front of the cutting device 2 is through the leadership role 8th a pressure on the sidewall 5 exercised, in addition to the distance of the leadership role 8th from the cutter 2 The decisive factor is the penetration depth of the cutting edge 11 in the sidewall 5 , This penetration depth is chosen during the cutting process so that the strength carrier 4 not hurt. This can be done by varying the contact pressure or the distance of the guide roller 8th to the cutter 2 respectively.

The movement of leadership 8th is preferably to the movement of the cutting device 2 coupled so that there is an approximately constant distance between the guide roller 8th and the cutter 2 results.

At the cutting device 2 is also a recording device 9 provided in which a transponder 3 and an associated ejection device 7 are arranged. This allows the transponder 3 right after cutting in the side wall 5 be positioned at the designated location, without the need for the cutting device 2 from the incision 6 must be removed. In 4 it can be seen that the incision 6 in a simple manner by rolling back and pressing the leadership role 8th can be closed.

1

vehicle tires

2

cutter

3

transponder

4

strengthening support

5

Side wall

6

incision

7

ejector

8th

guide wheel

9

cradle

10

guide surface

11

cutting edge

12

tread

Claims (12)

Method for producing a vehicle tire ( 1 ) with one in a side wall ( 5 ) of the vehicle tire ( 1 ) arranged transponder ( 3 ) and with a reinforcement ( 4 ) located at a distance B from the outside of the vehicle tire ( 1 ) in the side wall ( 5 ), characterized in that the side wall ( 5 ) by means of a cutting device ( 2 ) is cut with a penetration depth A, and means are provided, by means of which the penetration depth A of the cutting device ( 2 ) is limited to a dimension smaller than the distance B, and that the transponder ( 3 ) then into the thus formed incision ( 6 ) and then this incision ( 6 ) is closed. Method according to claim 1, characterized in that the cutting device ( 2 ) is heated. Method according to claim 1 or 2, characterized in that the movement of a guide roller ( 8th ) at least during the cutting process to the movement of the cutting device ( 2 ) is coupled. Method according to one of claims 1 to 3, characterized in that the incision ( 6 ) after inserting the transponder ( 3 ) by pressing the guide roller ( 8th ) on the incision in the side wall ( 5 ) is closed. Method according to one of claims 1 to 4, characterized in that the transponder ( 3 ) before vulcanization of the vehicle tire ( 1 ) in the side wall ( 5 ) is used. Method according to claim 5, characterized in that the transponder ( 3 ) is inserted into a green tire before it is wetted with a release agent before vulcanization. Device for producing a vehicle tire ( 1 ) with a reinforcement ( 4 ) and one in a side wall ( 5 ) of the vehicle tire ( 1 ) arranged transponder ( 3 ), the strength element ( 4 ) at a distance B from the outside of the vehicle tire ( 1 ) in the side wall ( 5 ), characterized in that it comprises a cutting device ( 2 ), with which the side wall ( 5 ) can be incised over a penetration depth A, and that means are provided by means of which the penetration depth A of the cutting device ( 2 ) is limited to a dimension smaller than the distance B, the transponder ( 3 ) in the thus formed incision ( 6 ) and the incision ( 6 ) is closable. Apparatus according to claim 7, characterized in that the cutting device ( 2 ) is formed heated. Device according to one of the preceding claims, characterized in that the means for limiting the penetration depth A by a on the side wall ( 5 ) Pressure exercising leadership role ( 8th ) and that the leadership role ( 8th ) during the cutting process in the cutting direction in front of the cutting device ( 2 ) is arranged. Device according to one of the preceding claims, characterized in that the means for limiting the penetration depth A by a spacer (guide surface 10 ) on the cutting device ( 2 ) is formed. Device according to one of the preceding claims, characterized in that on the cutting device ( 2 ) a receiving device ( 9 ) for the transponder ( 3 ) is trained. Device according to one of the preceding claims, characterized in that on the cutting device ( 2 ) one with the receiving device ( 9 ) cooperating ejection device ( 7 ) is arranged.