EP3380369A1 - Plastic carrier apparatus for motor vehicle wiper systems - Google Patents

Plastic carrier apparatus for motor vehicle wiper systems

Info

Publication number
EP3380369A1
EP3380369A1 EP16829332.2A EP16829332A EP3380369A1 EP 3380369 A1 EP3380369 A1 EP 3380369A1 EP 16829332 A EP16829332 A EP 16829332A EP 3380369 A1 EP3380369 A1 EP 3380369A1
Authority
EP
European Patent Office
Prior art keywords
plastic carrier
carrier apparatus
plastic
pipe
bracket
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.)
Withdrawn
Application number
EP16829332.2A
Other languages
German (de)
French (fr)
Inventor
Erdal Avsar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsuba Teklas Turkey Otomotiv AS
Original Assignee
Mitsuba Teklas Turkey Otomotiv AS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsuba Teklas Turkey Otomotiv AS filed Critical Mitsuba Teklas Turkey Otomotiv AS
Publication of EP3380369A1 publication Critical patent/EP3380369A1/en
Withdrawn legal-status Critical Current

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
    • B60S1/0413—Modular wiper assembly
    • B60S1/0419—Modular wiper assembly the support structure being integrally molded
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
    • B29C2045/1707—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances using a liquid, e.g. water
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances

Definitions

  • the present invention relates to a carrier apparatus used for fixing the wiper systems to the motor vehicles.
  • the windshield wiper systems used in the motor vehicles preferably comprise two wipers, one for the driver and the other for the passenger, a wiper motor that provides the forward-backward movement of the said wipers on the windshield, two shafts, each for transmitting the movement provided by the motor to a wiper, a transmission mechanism composed of articulated rods, and a carrier apparatus that is used for fixing the said components to the vehicle frame.
  • the carrier apparatus generally comprises a main carrier pipe, shaft bearings at both ends of the said main carrier, wherein the shafts connected to the wiper arm are fitted, and a motor bracket that is used for fixing the wiper motor.
  • the carrier apparatus an example of which is given in the patent document no. DE7434119, has a straight pipe with a rectangular cross-section as the main carrier.
  • the shaft bearings are fixed to both ends of the said pipe by press fitting.
  • the motor bracket is fixed to the said pipe by welding.
  • the patent no GB2219932 discloses a carrier apparatus produced by plastic injection molding.
  • the apparatus is a single piece composed of a bracket to which the motor is connected, carrier arms extending from the said bracket towards both sides and shaft bearings provided at the end of the said arms.
  • the carrier arms have a honeycomb- shaped structure composed of two side walls and support traverses provided between the walls. This design is cheaper and more easily producible with respect to the above- described metal carrier apparatus. However, due to the support traverses provided between the carrier arm walls, sufficient advantage in terms of weight cannot be obtained.
  • a plastic carrier apparatus that is produced as a single piece in a single process and that comprises a hollow main carrier pipe, shaft bearings provided at both ends of the said main carrier, at least one connection member for fixing the said main carrier to the vehicle frame and a motor bracket used for fixing the wiper motor is disclosed.
  • Figure la is the isometric view of the carrier apparatus of the present invention.
  • Figure lb is the detailed view of the motor bracket of the carrier apparatus of the present invention.
  • Figure 2 is the isometric view of the mold used for producing the carrier apparatus of the present invention.
  • Figure 3 is the simplified view of one half of the mold used for producing the carrier apparatus of the present invention.
  • Figure 4 is the view of the horizontal core set used for producing the carrier apparatus of the present invention.
  • Figure 5 is the view of the vertical core set used for producing the carrier apparatus of the present invention.
  • the carrier apparatus (1) is a plastic single piece comprising a hollow main carrier pipe (2), at least one shaft bearing (3), a motor bracket (4) and at least one connection member (5).
  • the main carrier pipe (2) is composed of a middle portion (20) and two arms (21, 22) extending towards both sides from the said portion (20).
  • the pipe (2) has preferably circular cross-section.
  • the pipe (2) has at least one bend (23) preferably at the regions where the arms (21, 22) and the middle portion (20) join.
  • the middle portion (20) of the carrier pipe (2) is generally positioned at a level lower than the two arms (21 , 22). While the middle portion (20) is integrated with the motor bracket (4) used for fixing the wiper motor, the arms (21, 22) are integrated with the connection members (5) to be connected to the vehicle frame.
  • the shaft bearing (3) is provided at the end of the arms (21, 22) of the main carrier pipe (2), perpendicular to the longitudinal axis of the pipe (2).
  • the shaft bearing (3) is in the form of a hollow vertical cylinder for bearing the shafts connected to the wiper arms.
  • the carrier apparatus (1) preferably comprises the connection members (5) joined with the shaft bearings (3).
  • the connection member (5) houses components such as screw, rivet, bolt, etc. used for fixing the carrier apparatus (1) to the vehicle frame.
  • the connection member (5) preferably has an open-ended U section structure.
  • hollow connection members (5) that have different cross- sections such as circular, rectangular, etc. can be provided on the apparatus (1).
  • the connection members (5) can be positioned at different points of the carrier apparatus (1).
  • the motor bracket (4) shown in detail in Figure lb is provided as integrated with the middle portion (20) of the main carrier pipe (2), perpendicular to the longitudinal axis of the pipe (2).
  • the bracket (4) is generally a plate having upper (41), side (42) and front (43) walls.
  • Connection holes (44) are provided on the bracket (4).
  • the motor connected to the underside of the bracket (4) is enabled to be fixed to the bracket (4) by means of components such as bolt, etc. or by means of welding.
  • the connection holes (44) are provided on the upper wall (41), the said holes (44) can be formed on the front wall (43) or the side wall (42).
  • a circular section housing (45) is provided on the upper wall (41) of the bracket (4).
  • the drive shaft transmitting the movement provided by the motor to the shafts by means of transmission mechanisms is fitted into the said housing (45).
  • at least one support traverse (46) can be provided between the upper wall (41) of the bracket (4) and the main carrier pipe (2).
  • the carrier apparatus (1) of the present invention is produced as a single piece in a single process by liquid injection technologies, preferably by water injection technology.
  • Figure 2 shows the isometric view of the mold (6) used in this production method.
  • the mold (6) composed of two halves (7, 7') closed over one another has a mold cavity (70) wherein the plastic material is injected.
  • Figure 3 the simplified view of one of the said two halves (7) from above is given in order to make the mold cavity (70) more apparent.
  • a complementary cavity for the mold cavity (70) is provided in the other mold half (7') not shown in the figure.
  • the mold cavity (70) has the same routing as the main carrier pipe (2) to be produced.
  • the mold (6) comprises horizontal core sets (8) for forming the shaft bearings (3) and the connection members (5) at the end portions of the mold cavity (70).
  • the horizontal core sets (8) are provided parallel to the mold cavity (70).
  • the vertical core set (9) provided preferably at the center of the mold cavity (70) is used for forming the motor bracket (4).
  • the vertical core set (9) extends perpendicular to the mold cavity (7) and into the mold half (7).
  • the horizontal core set (8) composed of two halves, namely the female (82) and the male (81) comprises a core cavity (83).
  • the said cavity (83) having the same geometric form as the shaft bearing (3) and the connection member (5) provides the molding of the contour of the shaft bearing (3) and the connection member (5).
  • a cylindrical protrusion (810) is provided in the male half (81) of the horizontal core set (8) and a hole (820) bearing the said protrusion (810) is provided in the female core half (82).
  • Figure 4 shows the vertical core set (9) composed of one male half (91) and one female half (92).
  • the vertical core set (9) comprises a core cavity (93) having the same geometric form as the motor bracket (4).
  • Protrusions (910) are provided on the male core half (91).
  • the said protrusions (910) generally have a circular cross-section and provide the formation of the connection holes (44) and the housing (45) on the bracket (4).
  • a groove or grooves (94) are formed on at least one of the core halves (91 , 92) for obtaining the support traverse (46).
  • the plastic molten material injected through a nozzle in the mold fills in the mold and core cavities (70, 83, 93).
  • the shaft bearings (3), the connection members (5) and the motor bracket (4) are formed.
  • pressurized liquid is pumped into the mold cavity (70). The pressurized liquid expels the hot and liquid material at the center of the plastic molten material filling the mold cavity (70) from the mold cavity (70).
  • the plastic carrier apparatus (1) is obtained by forming the hollow main carrier pipe (2).
  • pressurized liquid used for emptying the inner region of the plastic molten material in the method is preferably water
  • pressurized gas can be also used in different embodiments.
  • the inner region of the plastic molten material can be also emptied by mean of a projectile.
  • the number of the connection members (5) provided on the carrier apparatus (1) can be increased or decreased.
  • the strength of the carrier apparatus (1) can be improved.
  • a bellows form can be provided on the main carrier pipe (2) in order to absorb the vibrations that the apparatus (1) may be subjected to on the vehicle.
  • the cross-section of the main carrier pipe (2) can be in different forms such as quadrangular, elliptic, etc. apart from circular.
  • the main carrier pipe (2) can have a sectionally-varying cross-section.
  • the carrier apparatus (1) can be produced from a thermoplastic material such as polyphthalamide (PPA), polyamide (PA), polypropylene (PP), polyphenylene sulphide (PPS), polyethylene (PE), polybutylene terephthalate (PBT), thermoplastic elastomer (TPE), etc.
  • the apparatus (1) can be produced in multiple layers by using plastic materials with different characteristics.
  • the inner region of the main carrier pipe (2) can be filled with a plastic material so as to render the same stronger.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention relates to a plastic carrier apparatus (1) that is produced as a single piece in a single process, that is used for fixing the windshield wiper systems of the motor vehicles to the vehicle frame and that comprises a hollow main carrier pipe (2), shaft bearings (3) provided at both ends of the said main carrier (2), at least one connection member (5) for fixing the said main carrier (2) to the vehicle frame and a motor bracket (4) used for fixing the wiper motor is disclosed.

Description

DESCRIPTION
PLASTIC CARRIER APPARATUS FOR MOTOR VEHICLE WIPER
SYSTEMS
Related Technical Field The present invention relates to a carrier apparatus used for fixing the wiper systems to the motor vehicles.
State of the Art
The windshield wiper systems used in the motor vehicles preferably comprise two wipers, one for the driver and the other for the passenger, a wiper motor that provides the forward-backward movement of the said wipers on the windshield, two shafts, each for transmitting the movement provided by the motor to a wiper, a transmission mechanism composed of articulated rods, and a carrier apparatus that is used for fixing the said components to the vehicle frame.
The carrier apparatus generally comprises a main carrier pipe, shaft bearings at both ends of the said main carrier, wherein the shafts connected to the wiper arm are fitted, and a motor bracket that is used for fixing the wiper motor. The carrier apparatus, an example of which is given in the patent document no. DE7434119, has a straight pipe with a rectangular cross-section as the main carrier. The shaft bearings are fixed to both ends of the said pipe by press fitting. The motor bracket is fixed to the said pipe by welding. In this arrangement, producing the components of the apparatus separately increases mold costs. Moreover, that each of the metal components has a different production tolerance makes the assembly of the carrier apparatus very laborious and costly. Additionally, it may become necessary to bend the straight main carrier pipe so as to be placed into the engine compartment. This additional process will increase the production time and production costs. In the patent document no. EP0798183, a carrier apparatus wherein the main carrier pipe and the shaft bearings are produced as a single piece is disclosed. A metal pipe to be used as the main carrier is bent and then placed into a mold. With the pressure provided by the fluid pumped into the pipe the walls of the pipe are pushed into the cavities formed in the mold. By means of this process, solid cylindrical members are produced. By applying operations such as cutting, drilling, etc. to the cylindrical members, hollow housings for receiving the shaft bearings and the motor are formed. Although the apparatus is more easily produced by means of this embodiment, additional processes such as cutting, drilling, bending, etc. are required. These additional processes increase the production time and production costs. Moreover, the motor bracket required for safely fixing the motor cannot be produced by this method. Furthermore, the apparatus that is produced from metal material is heavy and costly.
The patent no GB2219932 discloses a carrier apparatus produced by plastic injection molding. The apparatus is a single piece composed of a bracket to which the motor is connected, carrier arms extending from the said bracket towards both sides and shaft bearings provided at the end of the said arms. The carrier arms have a honeycomb- shaped structure composed of two side walls and support traverses provided between the walls. This design is cheaper and more easily producible with respect to the above- described metal carrier apparatus. However, due to the support traverses provided between the carrier arm walls, sufficient advantage in terms of weight cannot be obtained.
By means of the present invention, a plastic carrier apparatus that is produced as a single piece in a single process and that comprises a hollow main carrier pipe, shaft bearings provided at both ends of the said main carrier, at least one connection member for fixing the said main carrier to the vehicle frame and a motor bracket used for fixing the wiper motor is disclosed.
The present invention is explicated below in detail with reference to the figures.
Figure la is the isometric view of the carrier apparatus of the present invention. Figure lb is the detailed view of the motor bracket of the carrier apparatus of the present invention.
Figure 2 is the isometric view of the mold used for producing the carrier apparatus of the present invention. Figure 3 is the simplified view of one half of the mold used for producing the carrier apparatus of the present invention.
Figure 4 is the view of the horizontal core set used for producing the carrier apparatus of the present invention.
Figure 5 is the view of the vertical core set used for producing the carrier apparatus of the present invention.
The elements related to the present invention are numbered as follows in the above- described figures:
Carrier Apparatus 1
Main Carrier Pipe 2
Middle Portion 20
Arm 21,22
Bend 23
Shaft Bearings 3
Motor Bracket 4
Upper wall 41
Side wall 42
Front wall 43
Hole 44
Housing 45
Support Traverse 46
Connection Members 5
Mold 6
Mold Half 7,7'
Mold Cavity 70 Horizontal Core Set 8
Male Core Half 81
Cylindrical
Protrusion 810
Female Core Half 82
Hole 820
Cavity 83
Vertical Core Set 9
Male Core Half 91
Protrusion 910
Female Core Half 92
Cavity 93
Groove 94
Detailed Description of the Invention
The carrier apparatus (1), the isometric view of which is shown in Figure la, is a plastic single piece comprising a hollow main carrier pipe (2), at least one shaft bearing (3), a motor bracket (4) and at least one connection member (5).
The main carrier pipe (2) is composed of a middle portion (20) and two arms (21, 22) extending towards both sides from the said portion (20). The pipe (2) has preferably circular cross-section. The pipe (2) has at least one bend (23) preferably at the regions where the arms (21, 22) and the middle portion (20) join. The middle portion (20) of the carrier pipe (2) is generally positioned at a level lower than the two arms (21 , 22). While the middle portion (20) is integrated with the motor bracket (4) used for fixing the wiper motor, the arms (21, 22) are integrated with the connection members (5) to be connected to the vehicle frame.
The shaft bearing (3) is provided at the end of the arms (21, 22) of the main carrier pipe (2), perpendicular to the longitudinal axis of the pipe (2). The shaft bearing (3) is in the form of a hollow vertical cylinder for bearing the shafts connected to the wiper arms. The carrier apparatus (1) preferably comprises the connection members (5) joined with the shaft bearings (3). The connection member (5) houses components such as screw, rivet, bolt, etc. used for fixing the carrier apparatus (1) to the vehicle frame. The connection member (5) preferably has an open-ended U section structure. However, according to the arrangement, hollow connection members (5) that have different cross- sections such as circular, rectangular, etc. can be provided on the apparatus (1). Moreover, according to the arrangement, the connection members (5) can be positioned at different points of the carrier apparatus (1).
The motor bracket (4) shown in detail in Figure lb is provided as integrated with the middle portion (20) of the main carrier pipe (2), perpendicular to the longitudinal axis of the pipe (2). The bracket (4) is generally a plate having upper (41), side (42) and front (43) walls. Connection holes (44) are provided on the bracket (4). By means of the said connection holes (44), the motor connected to the underside of the bracket (4) is enabled to be fixed to the bracket (4) by means of components such as bolt, etc. or by means of welding. Although the connection holes (44) are provided on the upper wall (41), the said holes (44) can be formed on the front wall (43) or the side wall (42). In addition to the connection holes (44), a circular section housing (45) is provided on the upper wall (41) of the bracket (4). The drive shaft transmitting the movement provided by the motor to the shafts by means of transmission mechanisms is fitted into the said housing (45). If required, in order to obtain a strong apparatus (1), at least one support traverse (46) can be provided between the upper wall (41) of the bracket (4) and the main carrier pipe (2).
The carrier apparatus (1) of the present invention is produced as a single piece in a single process by liquid injection technologies, preferably by water injection technology. Figure 2 shows the isometric view of the mold (6) used in this production method. The mold (6) composed of two halves (7, 7') closed over one another has a mold cavity (70) wherein the plastic material is injected. In Figure 3, the simplified view of one of the said two halves (7) from above is given in order to make the mold cavity (70) more apparent. In the other mold half (7') not shown in the figure, a complementary cavity for the mold cavity (70) is provided. The mold cavity (70) has the same routing as the main carrier pipe (2) to be produced. The mold (6) comprises horizontal core sets (8) for forming the shaft bearings (3) and the connection members (5) at the end portions of the mold cavity (70). The horizontal core sets (8) are provided parallel to the mold cavity (70). The vertical core set (9) provided preferably at the center of the mold cavity (70) is used for forming the motor bracket (4). The vertical core set (9) extends perpendicular to the mold cavity (7) and into the mold half (7).
As seen in Figure 4, the horizontal core set (8) composed of two halves, namely the female (82) and the male (81) comprises a core cavity (83). The said cavity (83) having the same geometric form as the shaft bearing (3) and the connection member (5) provides the molding of the contour of the shaft bearing (3) and the connection member (5). Moreover, in order to form the shaft bearing (3) as a hollow component, a cylindrical protrusion (810) is provided in the male half (81) of the horizontal core set (8) and a hole (820) bearing the said protrusion (810) is provided in the female core half (82).
Figure 4 shows the vertical core set (9) composed of one male half (91) and one female half (92). The vertical core set (9) comprises a core cavity (93) having the same geometric form as the motor bracket (4). Protrusions (910) are provided on the male core half (91). The said protrusions (910) generally have a circular cross-section and provide the formation of the connection holes (44) and the housing (45) on the bracket (4). Moreover, a groove or grooves (94) are formed on at least one of the core halves (91 , 92) for obtaining the support traverse (46).
In the first step of the method, the plastic molten material injected through a nozzle in the mold fills in the mold and core cavities (70, 83, 93). When the molten material filling into the core cavities (83, 93) solidifies, the shaft bearings (3), the connection members (5) and the motor bracket (4) are formed. In the second step of the method, pressurized liquid is pumped into the mold cavity (70). The pressurized liquid expels the hot and liquid material at the center of the plastic molten material filling the mold cavity (70) from the mold cavity (70). Thus, the plastic carrier apparatus (1) is obtained by forming the hollow main carrier pipe (2). Although the pressurized liquid used for emptying the inner region of the plastic molten material in the method is preferably water, pressurized gas can be also used in different embodiments. Moreover, alternatively, the inner region of the plastic molten material can be also emptied by mean of a projectile.
In an alternative arrangement, the number of the connection members (5) provided on the carrier apparatus (1) can be increased or decreased. By providing additional brackets on the carrier pipe (2), the strength of the carrier apparatus (1) can be improved. In a different embodiment, a bellows form can be provided on the main carrier pipe (2) in order to absorb the vibrations that the apparatus (1) may be subjected to on the vehicle. The cross-section of the main carrier pipe (2) can be in different forms such as quadrangular, elliptic, etc. apart from circular. According to the embodiment, the main carrier pipe (2) can have a sectionally-varying cross-section.
The carrier apparatus (1) can be produced from a thermoplastic material such as polyphthalamide (PPA), polyamide (PA), polypropylene (PP), polyphenylene sulphide (PPS), polyethylene (PE), polybutylene terephthalate (PBT), thermoplastic elastomer (TPE), etc. The apparatus (1) can be produced in multiple layers by using plastic materials with different characteristics. Moreover, if required, the inner region of the main carrier pipe (2) can be filled with a plastic material so as to render the same stronger.

Claims

1. A plastic carrier apparatus (1) for fixing the windshield wiper systems of the motor vehicles to the vehicle frame, comprising a hollow main carrier pipe (2), at least one shaft bearing (3), a motor bracket (4) and at least one connection member (5).
2. A plastic carrier apparatus (1) as in Claim 1, characterized in that the main carrier pipe (2) is composed of a middle portion (20) and two arms (21, 22) extending towards both sides from the said portion (20).
3. A plastic carrier apparatus (1) as in the previous claim, characterized in that the said shaft bearing (3) is provided at the end of the said arms (21, 22), perpendicular to the longitudinal axis of the carrier pipe (2).
4. A plastic carrier apparatus (1) as in Claim 2 or Claim 3, characterized in that the said motor bracket (4) is provided as integrated with the middle portion (20) of the main carrier pipe (2) and perpendicular to the longitudinal axis of the carrier pipe (2).
5. A plastic carrier apparatus (1) as in the previous claim, characterized in that the main carrier pipe (2) has at least one bend preferably at the regions where the arms (21, 22) and the middle portion (20) join.
6. A plastic carrier apparatus (1) as in the previous claim, characterized in that the said middle portion (20) is positioned at a level lower than the said arms (21, 22).
7. A plastic carrier apparatus (1) as in any one of the above claims, characterized in that the said connection members (5) are provided as integrated with the said shaft bearings (3).
8. A plastic carrier apparatus (1) as in any one of the above claims, characterized in that a bellows form is provided on the said main carrier pipe (2).
9. A plastic carrier apparatus (1) as in any one of the above claims, characterized in that the cross-section of the said main carrier pipe (2) is preferably circular.
10. A plastic carrier apparatus (1) as in any one of the above claims, characterized in that the cross-section of the said main carrier pipe (2) sectionally varies.
11. A plastic carrier apparatus (1) as in any one of the above claims, characterized in that the said shaft bearing (3) is in the form of a hollow vertical cylinder.
12. A plastic carrier apparatus (1) as in any one of the above claims, characterized in that the said connection member (5) preferably has an open-ended U section structure.
13. A plastic carrier apparatus (1) as in any one of the above claims, characterized in that the said bracket (4) is in the form of a plate having upper (41), side (42) and front (43) walls.
14. A plastic carrier apparatus (1) as in the previous claim, characterized in that a housing (45) is provided on the said upper wall (41) of the bracket (4).
15. A plastic carrier apparatus (1) as in Claim 13, characterized in that at least one support traverse (46) is provided between the on the said upper wall (41) of the bracket (4) and the said main carrier pipe (2).
16. A plastic carrier apparatus (1) as in any one of the above claims, characterized in that connection holes (44) are provided on the said bracket (4).
17. A plastic carrier apparatus (1) as in any one of the claims 1 to 16, characterized in that the said apparatus (1) is produced as a single piece in a single process by fluid injection technology.
18. A plastic carrier apparatus (1) as in Claim 17, characterized in that the said apparatus (1) is produced by water injection technology.
19. A plastic carrier apparatus (1) as in Claim 17 or 18, characterized in that a mold (6) composed of two mold halves (7, 7') and comprising a mold cavity (70) for the formation of the said main carrier pipe (2) is used in the production method by fluid injection technology.
20. A plastic carrier apparatus (1) as in the previous claim, characterized in that horizontal core sets (8) are provided at the end portions of the mold cavity (70) parallel to the mold cavity (70) for the formation of the said connection members (5).
21. A plastic carrier apparatus (1) as in Claim 19, characterized in that at least one vertical core set (9) is provided preferably at the center of the said mold cavity (70) perpendicular to the mold cavity (70), extending into the mold half (7).
22. A plastic carrier apparatus (1) as in Claim 20, characterized in that the said horizontal core set (8) composed of two halves, namely one male half (81) and one female half (82) comprises a core cavity (83) having the same geometric form as the said shaft bearing (3) and the connection member (5).
23. A plastic carrier apparatus (1) as in the previous claim, characterized in that a cylindrical protrusion (810) is provided in the male half (81) of the said horizontal core set (80) and a hole (820) bearing the said protrusion (810) is provided in the female half (82) of the core set (8).
24. A plastic carrier apparatus (1) as in Claim 21, characterized in that the said vertical core set (9) composed of two halves, namely one male half (91) and one female half (92) comprises a core cavity (93) having the same geometric form as the said motor bracket (4).
25. A plastic carrier apparatus (1) as in the previous claim, characterized in that protrusions (910) are provided in the male half (91) of the said vertical core set (9) for the formation of the said connection holes (44) and the said housing (45).
26. A plastic carrier apparatus (1) as in Claim 24, characterized in that a groove (94) is provided in at least one of the halves (91, 92) of the said vertical core set (9) for the formation of the said support traverse (46).
EP16829332.2A 2015-11-26 2016-11-25 Plastic carrier apparatus for motor vehicle wiper systems Withdrawn EP3380369A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201515004 2015-11-26
PCT/TR2016/000169 WO2017091173A1 (en) 2015-11-26 2016-11-25 Plastic carrier apparatus for motor vehicle wiper systems

Publications (1)

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EP3380369A1 true EP3380369A1 (en) 2018-10-03

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EP16829332.2A Withdrawn EP3380369A1 (en) 2015-11-26 2016-11-25 Plastic carrier apparatus for motor vehicle wiper systems

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WO (1) WO2017091173A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070226983A1 (en) * 2006-03-31 2007-10-04 Christopher Reynolds Gas assist molded wiper arm

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Publication number Priority date Publication date Assignee Title
DE7434119U (en) 1974-10-11 1975-02-06 Rau G Gmbh Drive for windshield wipers in vehicles
DE3919837A1 (en) 1988-06-21 1989-12-28 Fister Spa WIPER ASSEMBLY FOR A MOTOR VEHICLE
ES2177712T3 (en) 1996-03-26 2002-12-16 Bosch Gmbh Robert MOLDED TUBULAR SUPPORT PIECE.
DE19829320B4 (en) * 1998-07-01 2007-03-01 Robert Bosch Gmbh tubular plate
FR2910866A1 (en) * 2006-12-22 2008-07-04 Valeo Systemes Dessuyage Support device for motor vehicle, has single block part with tubular section body, guide bearing guiding rotative axle of windscreen wiper mechanism, and fixation points with carrier structure, where device is made of plastic material
DE102007056639B4 (en) * 2007-04-24 2017-05-24 Volkswagen Ag Windscreen wiper system with a tubular support for a vehicle
JP4989742B2 (en) * 2010-03-04 2012-08-01 アスモ株式会社 Wiper device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070226983A1 (en) * 2006-03-31 2007-10-04 Christopher Reynolds Gas assist molded wiper arm

Also Published As

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