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Patent Searching and Data


Title:
A NEW SYSTEM FOR THE PRODUCTION OF WEATHER-STRIPPINQ SEALS
Document Type and Number:
WIPO Patent Application WO/2010/008355
Kind Code:
A2
Abstract:
The invention relates to a weather-stripping seal production system comprising one extruder (2), the pulling mechanism (14) embodied to enable a continuous and regular movement along the work flow of the weather-stripping seal (4), which has been produced in the extruder (2) and on which no ducts (5) have been opened, at least one duct opening mechanism (6) positioned on the work flow of the weather-stripping seal (4) in order to open ducts (5) on the said weather- stripping seal (4).

Inventors:
CEYLAN, Enver (Ibrahimoglu Is mer. K:2 No:129, Duzce, 81000, TR)
Application Number:
TR2009/000087
Publication Date:
January 21, 2010
Filing Date:
July 10, 2009
Export Citation:
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Assignee:
K.E.T KAUCUK EKSTRUZYON TEKNOLOJISI SANAYI TIC. LTD. STI. (Ibrahimoglu Is mer. K:2 No:129, Duzce, 81000, TR)
CEYLAN, Enver (Ibrahimoglu Is mer. K:2 No:129, Duzce, 81000, TR)
International Classes:
B29C69/02; B23D45/10; B26D3/14; B60J10/08; E06B7/22
Domestic Patent References:
WO2009052974A12009-04-30
Foreign References:
EP1535782A12005-06-01
US20060267362A12006-11-30
DE9416948U11994-12-22
DE3835211A11990-04-26
EP1093902A12001-04-25
US4234657A1980-11-18
EP0644008A11995-03-22
Attorney, Agent or Firm:
LIDER FIKRI MULKIYET HIZMETLEN SANAYI (Ticaret Ltd. Sti, I. Calislar Cad. Omur Sok. No:10/6Bahcelievler / Istanbul, 34183, TR)
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Claims:
CLAIMS

1. The invention is a weather-stripping seal (4) production system comprising an extruder (2) for the production of a weather-stripping seal (4) and opening

5 ducts (5) on the same, and a pulling mechanism (14) embodied to enable a regular and continuous movement of the weather-stripping seal (4) which has been produced in the extruder (2) and on which no ducts (5) have been opened, characterized in that it comprises

- at least one duct opening mechanism (6) positioned on the work flow o axis of the weather-stripping seal (4) to open ducts (5) on said weather- stripping seal (4).

2. A weather-stripping seal production system according to Claim 1 characterized in that it comprises at least one cutting group (13) positioned on

5 said duct opening mechanism (6).

3. A weather-stripping seal production system according to Claim 2 characterized in that it comprises at least one cutting element (9) positioned on the cutting group (13) in order to open ducts (5) on the weather-strippingo seal (4).

4. A weather-stripping seal production system according to Claim 2 characterized in that it comprises at least one motor (11) driving said cutting element (9) on its own axis, preferably with a rotational movement.

5. A weather-stripping seal production system according to Claim 2 characterized in that it comprises at least one action piston (12) connected with the cutting group (13), in order to enable the cutting group (13) to displace with respect to the weather-stripping seal (4) on the horizontal and/oro vertical axis during said duct (5) opening process.

6. A weather-stripping seal production system according to Claim 2 characterized in that the process of opening ducts (5) on at least one face, and preferably two faces of said weather-stripping element (4) is performed.

5 7. A weather-stripping seal production system according to at least one of the preceding claims characterized in that it comprises at least one cutting support element (7) positioned on the same axis as the work flow, in order to form a support base for the weather-stripping seal (4) during the cutting process, when the weather-stripping seal (4) is taken into the duct opening mechanism

LO (6).

8. A weather-stripping seal production system according to Claim 7 characterized in that it comprises at least one cutting aid gap (8) embodied on the surface of the cutting support element (7) on which the weather-stripping

15 seal (4) fits, in order to provide the cutting elements (9) with the cutting depth during the opening of the duct (5).

9. A weather-stripping seal production system according to at least one of the preceding claims characterized in that the weather-stripping seal (4) is

.0 produced with a U shaped form via a mould, in said extruder (2).

10. A weather-stripping seal production system according to at least one of the preceding claims characterized in that the weather-stripping seal (4) leaving the extruder (2) is passed through at least one calibration apparatus (3) in

>5 order to ensure the regularity of its flow.

Description:
A NEW SYSTEM FOR THE PRODUCTION OF WEATHER-STRIPPINQ SEALS

Technical Field

The invention relates to sealing components.

The invention relates in particular to the weather-stripping used on all automobile doors, including the tailgate, positioned on sharp metal surfaces on the body section of the automobile where the door comes in contact during the closing of the door.

Background of the Invention

Weather-stripping seals today comprise basically the main body, the side body positioned on the metal surface and the support element positioned inside the main body, also acting as support for the main body. The principle function of the side body is dampening the impacts. The purpose in positioning the metal support element inside the main body is to ensure that a firm contact is established by close fitting when the weather-stripping seal is positioned on the automobile body via the main body. To make the said fitting, an opening is formed at one end of the main body.

Said sealing element is produced as stated in the description below. The support element comprising the backbone of the main body is supplied as a metal band surface formed as a comb with multiple ordered teeth on both sides. The said band surface is transferred to the extrusion process section via a machine making an arrangement. In this section, there are two oppositely positioned extrusion machines. In one extrusion machine, a plastic-derived molten material is poured over the planar support element.

The other extrusion machine, on the other hand, again pours a plastic-derived molten material to form a set on the same plane. Because a continuous flow is provided in the process, the support element on which the plastic derivative material is poured advances to the cooling section and in the cooling section, water for cooling purposes is applied on the same from the bottom. Application of the water on the product advancing along the mentioned cooling section is continued and the weather-stripping seal main body out from the extrusion process in a hot form is 5 cooled down to the desired temperature.

The weather-stripping seal main body leaving the cooling section is given a U profile form via the pressure force applied on the same. The elastic side body is bonded on the weather-stripping seal which has been given a U profile form by hot adhesion o technique and the final product pulled from one end is rolled up and taken to the inventory section.

The main body and the side body are selected from different derivatives of the plastic, because they are subject to processes having different temperatures. The

5 determining factor in this selection is that the side body has an elasticity with a high ratio of flexion tolerance. Therefore, when the sealing element becomes unusable, because it is not of a homogenous structure, its re-cycling can only be possible by separating the side body from the main body by hand. Additionally, the process of separating the support element selected from the metal material cannot be o performed because of the high labor costs. Due to the reason mentioned, the recycling of the main body and the metal support element can not be performed.

Selecting the weather-stripping seal support element to be metallic is another disadvantage increasing the cost because of the price of metal.

'.5

Use of metal as the weather-stripping seal support element causes marks of the support element to be formed on the external surface of the main body in the final production and disturbs the appearance, and covering that appearance can only be possible by placing decorative materials on the same. so

Deterioration of the metal by way of corrosion due to fluids and air causes the weather-stripping seal to become unusable. Additionally, the cost for the storage of the metal support element procured in the form of strips is another disadvantage.

Another major disadvantage of the weather-stripping seal mentioned above is that the weight of the weather-stripping seal increases due to the specific weight of metal (300 g for an average weather-stripping seal). In the automotive sector, this corresponds to a weight of 3-4 kilograms on the average.

Object of the Invention

Based on the mentioned state of the art, the object of the invention is to enable the elimination of the disadvantages of the present weather-stripping seal and its production method, with the new weather-stripping seal and its production method developed.

Another object of the invention is to enable a reduction in the cost of materials by producing the weather-stripping seal support element with a plastic-derived material.

Another object of the invention is to reduce the weight of the weather-stripping seal by producing the weather-stripping seal support element from a plastic derivative material which has a lower specific weight as compared to metal and in parallel with this, to pull down the weight of the products on which the weather-stripping seal is applied.

Another object of the invention is to enable the elimination of the support element storage cost.

Another object of the invention is to enable a hundred percent re-cycling for the weather-stripping seal.

Yet another object of the invention is to save from time, labor and equipment by shortening the weather-stripping seal production process. Yet another object of the invention is to enable savings from labor and time by producing the weather-stripping body in one piece.

5 Yet another object of the invention is to enable the production of the external surface of the weather-stripping seal in a manner so as not to adversely affect the vehicle's appearance in the automotive sector where it is used.

Description of the Figures o

Figure-1 : The perspective drawing of the duct opening mechanism of the weather- stripping seal production system for a representative application of the invention is shown.

5 Figure-2: The perspective drawing of the duct opening mechanical of the weather- stripping seal production system is shown.

Figure-3: The drawing in which the weather-stripping seal production system is shown in general. :o

Figure-4: The drawing in which the close-up view of the cutting process is shown.

Figure-5: The drawing in which the cutting process is shown in stages.

»5 Figure-6: The drawing in which the cutting support element is shown.

Figure-7: The drawing in which the cutting element and the weather-stripping seal in the cutting process are shown from the same angle.

30 Figure-8: The drawing in which the processed weather-stripping seal is shown. Reference Numbers

1. Raw Material Chamber

2. Extruder

5 3. Calibration Apparatus

4. Weather-stripping Seal

5. Duct

6. Duct Opening Mechanism

7. Cutting Support Element o 8. Cutting Aid Gaps

9. Cutting Elements

10. Cutter Carriage Element

11. Motor

12. Action Pistons 5 13. Cutting Group

14. Pulling Group

15. Winding Bobbin

Detailed Description of the Invention

,o

In this detailed description, the invention is described in the light of the attached figure given only to aid in a better understanding of the invention and not to be limiting in any way.

•5 In Figure-1 , the perspective drawing of the system in which the weather-stripping seal (4), the subject matter of the invention, is produced. In the production in question, an extruder (2) is included in the system. The raw material chambers (1) of the extruder (2) are filled with plastic derivative material in granular form. The temperature the extruder (2) applies of the granular plastic derivative material has

?o been chosen by preference to be from 160 0 C to 220 0 C. The material assumes a molten stage at the temperatures mentioned. The process of casting the molten material through the extruder (2) is performed on the form embodied to produce the weather-stripping seal (4) in the U shaped form. The weather-stripping seal (4) production in the U shaped form is advanced through the work flow by being pulled continuously and regularly inside the system. In order for the advance of the weather-stripping seal (4) inside the system to be regular, the weather-stripping seal (4) leaving the extruder (2) is passed through the calibration apparatus (3). The weather-stripping seal (4), the flow of which has been regulated, is taken into the duct opening mechanism (6) to open ducts (5) on the same.

) In the duct opening mechanism (6), the process of opening ducts on the weather- stripping seal (4) is performed. The cutting support element (7) is embodied on the work flow axis of the weather-stripping seal (4) in order for the said operation to be performed. When the weather-stripping seal (4) having a U form arrives at the duct opening mechanism (6), it is exactly positioned on the cutting support element (7).

5 On the surface on which the cutting support element (7) positions the weather- stripping seal (4), multiple cutting aid gaps (8) are embodied. When the said cutting elements (9) remove shavings from the weather-stripping seal (4), these move in the depth of the said cutting aid gaps (8). Two motors (11) are positioned on the duct opening mechanism (6). The cutter carriage elements (10) connected to the motors o (11) carry the cutting elements (9) in multiple numbers and in a circular saw form. The cutting group (13) comprising the motor (11), cutter carriage element (10) and cutting elements (9) is positioned on the flow axis of the weather-stripping seal (4). Action pistons (12) are connected to the cutting group (13) in order for the cutting elements (9) to move parallel to the cutting plane and perpendicular to the cutting

5 plane during the process of opening ducts (5) on the weather-stripping seal (4) by the cutting elements (9) (Figure-2).

As seen in Figure-4, a multiple number of cutting elements (9) perform the process of duct (5) opening on the weather-stripping seal (4). Because the weather-stripping o seal (4) is fixed on the cutting plane, in order for the duct (5) to be opened on the same to be formed with the desired geometry and dimensions, the cutting elements (9) move together with the cutting group (13) in parallel with and/or perpendicular to the cutting plane. This motion provided by the action pistons (12) connected to the cutting group (13) performs the duct (5) opening process. The cutting elements (9) changing their positions in the said cutting process relative to the weather-stripping seal (4) is shown in schematic form in Figure-5.

The weather-stripping seal (4) on which the ducts (5) have been opened advances in the work flow with the pulling of the pulling group (14), and after being winded in the winding bobbins (15), it is taken to storage as the final product.