DE1704202A1 - Pressing tool for manufacturing windshield wiper blades - Google Patents
Pressing tool for manufacturing windshield wiper bladesInfo
- Publication number
- DE1704202A1 DE1704202A1 DE19671704202 DE1704202A DE1704202A1 DE 1704202 A1 DE1704202 A1 DE 1704202A1 DE 19671704202 DE19671704202 DE 19671704202 DE 1704202 A DE1704202 A DE 1704202A DE 1704202 A1 DE1704202 A1 DE 1704202A1
- Authority
- DE
- Germany
- Prior art keywords
- recess
- pressing tool
- wiper blades
- windshield wiper
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/005—Moulds or cores; Details thereof or accessories therefor characterised by the location of the parting line of the mould parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/305—Wipers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/02—Cleaning windscreens, windows or optical devices
- B60S1/04—Wipers or the like, e.g. scrapers
- B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
- B60S1/38—Wiper blades
- B60S2001/3827—Wiper blades characterised by the squeegee or blade rubber or wiping element
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
Pre#werkzeug zum Herstellen von Sobeibenwischerblättern Die bisher zur Herstellung von Scheibenwischerblättern verwendeuten Pre#werkzeuge weisen eine Teilung auf, die entweder in der Symmetrieebene der Scheibenwischerblätter liegt oder schräg zur Symmetrieebene in Richtung einer der Kanten der Wischerlippe verläuft. Dadurch werden Ungenauigkeiten an der Wischerlippe veruracht, die sich im unsauberen Abnehmen des Wasserfilms auf der Fahrzeugscheibe auswirken. Pre # tool for making wiper blades The so far Pre # tools used to manufacture windshield wiper blades have a Division on, which is either in the plane of symmetry of the wiper blades or runs obliquely to the plane of symmetry in the direction of one of the edges of the wiper lip. This causes inaccuracies on the wiper lip, which are in the unclean The effect of removing the water film on the vehicle window.
Wenn die Soheibenwischerblätter dagegen in einer sog. Tandemform, wobei zwei Scheibenwischerblätter mit ihrer Wischerlippe zusammemhängen, hergestellt werden, müssen diese, z.B. durch Schneiden, voneinander getrennt werden. Da der Werkstoff, meist Gummi, Jedoch elastisch ist, ist eine saubere Sohnittführung schwierig durchzuführen, und es entstehen deshalb ebenfalls Scheibenwischerblätter lit einer ungenau ausgebildeten Kante der Wischerlippe.If, on the other hand, the sole wiper blades are in a so-called tandem shape, whereby two windshield wiper blades hang together with their wiper lip these must be separated from one another, e.g. by cutting. Since the The material, mostly rubber, but elastic, makes it difficult to run properly carry out, and there are therefore also wiper blades lit one imprecisely formed edge of the wiper lip.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, diesen @achteil zu vermeiden. Erfindungsgemä# wird dies dadurch erreicht, daß die Teilfuge des Pre#werkzeuges bis kurz vor die Kanten der Wischerlippe in der Symmetrieebene des Hohlraumes liegt und anschließend außerhalb des ftohIrawnes verläuft. Vorteilhaft wird der von der Symmetrieebene abweichende Teil der Teilfuge durch eine in der oberen Pre#werkzeughälfte liegende, über der Wischerlippe beginnende Aussparung und eine auf der unteren PreBwerkzeughälfte entsprechend angeordnete, dieser Aussparung angepaßte Erhebung gebildet. Die Aussparung wird dabei in ihrem Grundbereich durch parallele, senkrechte Wände begrenzt, die anschließend divergierend verlaufen. Die Erhebung wird in ihrem oberen Bereich durch entsprechend der Aussparung ausgebildete, Jedoch verkürzte, parallele senkrechte Wände begrenzt, die zu ihrer Basis hin divergieren.The present invention is based on the object of this disadvantage to avoid. According to the invention, this is achieved by that the Parting joint of the pre # tool until just before the edges of the wiper lip in the plane of symmetry of the cavity lies and then runs outside the ftohIrawnes. Advantageous the part of the parting line deviating from the plane of symmetry is replaced by an in the The recess in the upper pre # tool half, beginning above the wiper lip and a correspondingly arranged recess on the lower pressing tool half adapted survey formed. The recess is through in its basic area limited parallel, vertical walls, which then run diverging. the Elevation is formed in its upper area by corresponding to the recess, However, it is limited by shortened, parallel vertical walls that diverge towards their base.
Die Vorteile des erfindungsgemäß ausgestalteten Preßwerkzeuges liegen darin, daß die für die genaue Wirkungsweise des Scheibenwischers maßgebende Kante nicht durch die Teilung des Preßwerkzeuges beeinträchtigt wird. Auch wenn die Temperaturführung in den beiden Preßwerkzeughälften unterschiedlich ist, wirkt sich dies nicht auf die Maßhaltigkeit der Wischerlippe aus, da sie nur von einer Preßwerkzeughälfte geformt wird. Weiterhin kommt der Schnittvorgang, der bei der "Tandem-Ausführung" notwendig ist, zum Wegfall. Durch die Ausbildung der beiden Preßwerkzeughälften mit einer zusätzlichen Aussparung bzw. der entsprechenden Erhebung wird eine Parallelführung beim Zusammenbringen uer Preßwerkzeughälften erreicht, wodurch die Genauigkeit des Pre#vorganges weiter erhöht wird.The advantages of the press tool designed according to the invention lie that the decisive edge for the exact mode of operation of the windshield wiper is not affected by the division of the press tool. Even if the temperature control is different in the two press tool halves, this does not affect the dimensional accuracy of the wiper lip, as it is only from one press tool half is shaped. Furthermore, there is the cutting process, which is the case with the "tandem version" is necessary for elimination. Due to the design of the two press tool halves with an additional recess or the corresponding elevation is a parallel guide when bringing uer press tool halves together, thereby increasing the accuracy of the Pre # process is further increased.
In der Zeichnung ist eine Ausführungsform der Erfindung im Schnitt schematisch dargestellt. In the drawing, an embodiment of the invention is in section shown schematically.
Das Preßwerkzeug zur Herstellung von Scheibenwischerblättern besteht aus einer oberen Preßwerkzeughälftev1und einer unteren Preßwerkzeughälfte 2. Es weist einen Hohlraum 3 auf, der entsprechend der gewünschten Gestalt der Scheibenwischerblätter ausgebildet ist. Die obere Preßwerkzeughälfte 1 besitzt eine Aussparung 4, die vor den Kanten 5 der Wischerlippe 6, d.h. im Bereich des Hohlraums), beginnt. Längs dieser Aussparung 4 vert läuft die Teilfuge des Pre#werkzeuges. Die Aussparung 4 wird in ihrem Grundbereich 7 durch parallele Wände begrenzt. Anschließend verlaufen die Wände divergierend. Die untere Preßwerkzeughälfte 2 besitzt eine der Aussparung 4 entsprechend ausgebildete, Jedoch etwas verkürzte Erhebung 8. Die Aussparung 4 bzw. die Erhebung 8 liegen so, daß die Kanten 5 der Wischerlippe 6 durch die Teilfuge des Preßwerkzeuges nicht berUhrt werden. The pressing tool for the production of windshield wiper blades consists from an upper press tool half v1 and a lower press tool half 2. Es has a cavity 3, which corresponds to the desired shape of the wiper blades is trained. The upper die half 1 has a recess 4, which is in front the edges 5 of the wiper lip 6, i.e. in the area of the cavity) begins. Along This recess 4 vertically runs the parting line of the pre # tool. The recess 4 is limited in its base area 7 by parallel walls. Then run the walls diverging. The lower die half 2 has one of the recess 4 appropriately designed but somewhat shortened elevation 8. The recess 4 or the elevation 8 are so that the edges 5 of the wiper lip 6 through the parting line of the press tool are not touched.
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM0075080 | 1967-08-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1704202A1 true DE1704202A1 (en) | 1971-10-07 |
Family
ID=7316125
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19671704202 Pending DE1704202A1 (en) | 1967-08-08 | 1967-08-08 | Pressing tool for manufacturing windshield wiper blades |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1704202A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017121651A1 (en) * | 2016-01-13 | 2017-07-20 | Robert Bosch Gmbh | Device and method for producing a wiper rubber by means of injection moulding |
CN107107874A (en) * | 2014-11-11 | 2017-08-29 | 罗伯特·博世有限公司 | The fin ray wiper of flexible structure with demoulding optimization |
-
1967
- 1967-08-08 DE DE19671704202 patent/DE1704202A1/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107107874A (en) * | 2014-11-11 | 2017-08-29 | 罗伯特·博世有限公司 | The fin ray wiper of flexible structure with demoulding optimization |
CN107107874B (en) * | 2014-11-11 | 2019-04-09 | 罗伯特·博世有限公司 | The fin ray wiper of flexible structure with demoulding optimization |
US10421438B2 (en) | 2014-11-11 | 2019-09-24 | Robert Bosch Gmbh | Fin ray-type wiper comprising a flexible structure optimized for demolding |
WO2017121651A1 (en) * | 2016-01-13 | 2017-07-20 | Robert Bosch Gmbh | Device and method for producing a wiper rubber by means of injection moulding |
CN108472847A (en) * | 2016-01-13 | 2018-08-31 | 罗伯特·博世有限公司 | The device and method for manufacturing Wiper rubber by Shooting Technique |
CN108472847B (en) * | 2016-01-13 | 2021-01-01 | 罗伯特·博世有限公司 | Device and method for producing wiper rubber by means of an injection molding process |
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