CN102019908A - Wiper arm for automobile rear window wiper made of synthetic materials - Google Patents

Wiper arm for automobile rear window wiper made of synthetic materials Download PDF

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Publication number
CN102019908A
CN102019908A CN2010102839959A CN201010283995A CN102019908A CN 102019908 A CN102019908 A CN 102019908A CN 2010102839959 A CN2010102839959 A CN 2010102839959A CN 201010283995 A CN201010283995 A CN 201010283995A CN 102019908 A CN102019908 A CN 102019908A
Authority
CN
China
Prior art keywords
wiper blade
spring
hinge portion
blade carriage
kayser
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.)
Granted
Application number
CN2010102839959A
Other languages
Chinese (zh)
Other versions
CN102019908B (en
Inventor
M·克鲁斯
S·盖斯
S·R·赖希
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of CN102019908A publication Critical patent/CN102019908A/en
Application granted granted Critical
Publication of CN102019908B publication Critical patent/CN102019908B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/3463—Means to press blade onto screen
    • B60S1/3465—Means to press blade onto screen with coil springs
    • B60S1/3468—Mountings therefor
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • 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
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/3425—Constructional aspects of the arm
    • B60S1/3445—Joints between elements
    • B60S1/345—Joints between elements the elements being a link piece and a mounting head
    • 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
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/3425—Constructional aspects of the arm
    • B60S1/3431—Link pieces
    • B60S1/3434—Manufacturing details thereof

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The invention relates to a wiper arm (10) for a automobile rear window wiper made of synthetic materials, wherein the wiper arm (10) consists of a fixed part (12) and a hinged part (14) with a wiper blade bracket (16), wherein the hinged part (14) can be rotationally connected with the fixed part (12) via hinges (38, 40) and can clamp along the direction toward the rear window by a clamping spring (28); the clamping spring is supported on the fixed part (12) with a spring end part (32) and is supported on the hinged part (14) with another spring end part (30). The wiper blade bracket (16) is suggested to be loosely connected with the hinged part (14), wherein the boundary line extends near a spring support (34) of the hinged part (14).

Description

The Wiper arm of making by synthetic material that is used for the rear auto window rain brush
Technical field
The present invention relates to a kind of by claim 1 Wiper arm of making by synthetic material that is used for the rear auto window rain brush as described in the preamble.
Background technology
The Wiper arm of described type is disclosed by DE 102006034705A1.At this, fixed part and hinge portion comprised the interconnective Wiper arm hinge of these two parts is made with the assembling injection moulding process, that is to say, in first method step, at first produce a part in the described parts in the method by injection moulding, and in method step subsequently preferred in identical injection molding only by open another die cavity in other words another formingspace produce another parts by injection moulding.At this, the parts that produce in first method step have determined to be used for the formingspace of injection moulding second parts at least in part, especially also in the Wiper arm hinged areas.Thus, considering that shaping and parts and consideration are used for injection moulding especially under the situation of the vibration characteristic of the synthetic material of second parts and other problems, with small tolerance clearance and/or realize bearing position and guiding between fixed part and the hinge portion renewablely with the gap width that provides in advance.
In this assembling injection moulding, not only can insert in the plastic-blasting mould being formed for fixedly the insert of the opening of fixed part, and the functional element that also can use other for example to be made of metal in case of necessity.So, especially also can replace the pin that the synthetic material by fixed part forms and the pin that is made of metal is set, this pin was inserted in the injection molding before the injection moulding fixed part as prefabricated parts, and was anchored in each wall section by the pressure injection-moulded both sides that are encapsulated in.After the assembling injection moulding, only need refill and join fastening spring.
The Wiper blade carriage is connected on the hinge portion towards the direction of free end.This Wiper blade carriage has towards the profile of the unlimited cross-sectional plane U-shaped of rear window, and this profile is reinforced by cross rib.This Wiper blade carriage has the connecting device that is used for Wiper blade on the end of hinge portion.
A kind of similar rain brush is disclosed by DE 19747857A1.This Wiper arm has hollow profile, and this hollow profile is made by synthetic material with the gas internally pressuring shaping method.
In addition, the Wiper arm that is used for automotive windshield is extensively promoted, and wherein makes the Wiper blade carriage by the Metallic rod type spare with rectangular cross section.This Wiper blade carriage is fixed on the hinge portion by contraction with an end, and that its other end is configured to usually is hook-shaped, different adapters can be sandwiched in described the other end in order to cooperate different Wiper blades.
Summary of the invention
According to the present invention, the Wiper blade carriage releasably is connected with hinge portion, near the wherein demarcation line extension spring bracket of hinge portion.Thus, the universal mount of being made up of fixed part and hinge portion can be connected simply with the different Wiper blade carriage of adjusting according to different cares category and Wiper blade.Obtain economic manufacturing and storage with low cost thus.
Described hinge portion has attaching parts at it targetedly in the face of on the end of Wiper blade carriage, and this attaching parts is surrounded from the outside by the end that sets of Wiper blade carriage, and is connected with the Wiper blade carriage by kayser bindiny mechanism (Klippverbindung).Because the Wiper blade carriage surrounds attaching parts,, wherein unload described kayser bindiny mechanism and realized simple assembling by side force to a great extent so it has good lateral slip.In the design plan of routine, connecting device can be molded on the free end of Wiper blade carriage.
According to by design plan of the present invention, described kayser bindiny mechanism comprises at least two functional elements, just supporting projections and kayser roller.Supporting projections combines with the recess that sets and bears external force and load basically, and the kayser roller is used for location and fixing rigging position.At this, described supporting projections and kayser roller and the recess that sets can differently be distributed on the described parts, just on Wiper blade carriage and the attaching parts.For example described supporting projections and kayser roller are arranged on Wiper blade carriage or the attaching parts together, and corresponding recess is arranged on the corresponding other parts.Yet also supporting projections can be molded on the Wiper blade carriage and with the kayser roller die on attaching parts, and corresponding recess is arranged in the corresponding other parts.
Can be that identical universal mount can be made in identical assembling injection mould with the assembling injection moulding process inexpensively for many applicable cases, wherein fastening spring described in the first step and in case of necessity other optional feature for example assemble socket in order fixed part to be fixed on the rain brush axle or on pin that is made of metal and the pin and put into and assemble injection mould.In second step, the thermoplastic first synthetic material composition is sprayed into and moulds fixed part after the injection mould closing assembling, the spring end that sets of while fastening spring is by circulation and be fixed on the spring bearing that is set.In third step, open the die cavity of the hinge portion be used to have connecting device and spray into the thermoplastic second synthetic material composition, wherein the spring end that sets of fastening spring is involved in the spring bearing.Described method step two and three also can be carried out by reversed sequence.Cooperate the Wiper blade carriage of application corresponding situation to make separately in many cover plastic-blasting moulds (Mehrfachspritzwerkzeug) by synthetic material targetedly for the cost reason.
Description of drawings
Other advantage obtains from following description of drawings.Embodiments of the invention have been shown in the accompanying drawing.Accompanying drawing, specification sheets and claim comprise a large amount of assemblage characteristics.Those skilled in the art also can the described features of single targetedly consideration and are summed up other significant combination.
Wherein:
Fig. 1 is by the elevation profile of Wiper arm of the present invention according to the lines I-I among Fig. 2, and
Fig. 2 is the view from following observation hinge portion and fixed part.
The specific embodiment
Wiper arm 10 comprises fixed part 12, hinge portion 14 and Wiper blade carriage 16, Wiper arm is fixed on the rain brush axle that does not illustrate by the assembling socket with this fixed part.Hinge portion 14 is articulated and connected with fixed part 12 in hinge area 44, and method is that the link pin 38 that a part here is a hinge portion 14 is bearing in the hinge wheel hub 40 that another part here is a fixed part 12.Described hinge portion 14 clamps with respect to fixed part 12 by fastening spring 28, thereby the Wiper blade that does not illustrate that will be fixed on the Wiper arm 10 pushes towards the rear window of automobile.Described fastening spring 28 usefulness spring ends 32 are supported on the spring bearing 36 of fixed part 12, and this spring is supported on the spring bearing that is set 36 of hinge portion 14 with its other spring end 30.
Described hinge portion 14 has molded attaching parts 26 at it on the end of hinge area 44, this attaching parts is closely surrounded by the sidewall of Wiper blade carriage 16, makes this Wiper blade carriage 16 have good lateral slip.The tegmental wall of Wiper blade carriage 16 covers attaching parts 26 and has supporting projections 22 on the side within it, in the recess that sets in this supporting projections embedding attaching parts 26.The tegmental wall that this supporting projections 22 longitudinally favours Wiper blade carriage 16 extends.In addition, be provided with kayser roller 24 on tegmental wall, this kayser roller embeds in the set recess of attaching parts 26.When assembling, at first supporting projections 22 is imported in the recess that is set, and subsequently kayser roller 24 is pressed in the recess that is set.Supporting projections 22, kayser roller 24 and the recess that is set have formed kayser bindiny mechanism 20.Different Wiper blade carriages 16 can be placed on the universal mount of forming by fixed part 12 and hinge portion 14 and on the fastening spring 28 by this kayser bindiny mechanism 20.Connecting device 18 on the free end of Wiper blade carriage 16 is used for fixing the Wiper blade that does not illustrate.
Universal mount 12,14,28 is made with the assembling injection moulding process targetedly, wherein in first step fastening spring 28 and other optional feature is for example assembled socket 42 and metallo-link pin 38 and puts into the assembling injection mould.In second step, spray into thermoplastic synthetic material composition and mould fixed part 12 after the injection mould closing assembling, and the spring end that sets 32 of fastening spring 28 is by circulation and be fixed on the spring bearing 36 that is set.In third step, open the die cavity of the hinge portion 14 be used to assemble injection mould and spray into the thermoplastic second synthetic material composition, wherein the spring end that sets 30 of fastening spring 28 is involved in the spring bearing 34.Thus, be used for widely applying the universal mount 12,14,28 of situation to make, and in independent many cover plastic-blasting moulds with low cost, make according to the different Wiper blade carriage 16 that the application corresponding situation is adjusted at same assembling injection mould.

Claims (6)

1. the Wiper arm of making by synthetic material that is used for the rear auto window rain brush (10), this Wiper arm is made of fixed part (12) and the hinge portion (14) that has Wiper blade carriage (16), wherein hinge portion (14) is by hinge (38,40) can be connected with fixed part (12) pivotally and can pass through fastening spring (28) along clamping towards the direction of rear window, this fastening spring is supported on fixed part (12) with a spring end (32) and goes up and be supported on the hinge portion (14) with its other spring end (30), it is characterized in that, described Wiper blade carriage (16) can be connected with hinge portion (14) with unclamping, near the wherein demarcation line extension spring bearing (34) of hinge portion (14).
2. by the described Wiper arm of claim 1 (10), it is characterized in that, in the face of having attaching parts (26) on the end of Wiper blade carriage (16), this attaching parts is surrounded by the end that sets of Wiper blade carriage (16) and is connected with Wiper blade carriage (16) by kayser bindiny mechanism (20) described hinge portion (14) from the outside at it.
3. by the described Wiper arm of claim 2 (10), it is characterized in that, described kayser bindiny mechanism (20) has supporting projections (22) or kayser roller (24) respectively at Wiper blade carriage (16) or on attaching parts (18), the corresponding recess in corresponding other parts is equipped on described supporting projections or described kayser roller.
4. by the described Wiper arm of claim 2 (10), it is characterized in that, described kayser bindiny mechanism (20) has supporting projections (22) and kayser roller (24) at Wiper blade carriage (16) or on attaching parts (18), the corresponding recess in corresponding other parts is equipped on supporting projections or kayser roller.
5. be used for making method by each described Wiper arm (10) of aforesaid right requirement, it is characterized in that, described fixed part (12) and described hinge portion (14) are made in the assembling injection moulding process interior together with described fastening spring (28), wherein in first step with described fastening spring (28) and in case of necessity other optional feature put into the assembling injection mould, in second step, after closing the assembling injection mould, spray into the thermoplastic first synthetic material composition and mould described fixed part (12), simultaneously the spring end that sets (32) of described fastening spring (28) is by circulation and be fixed on the spring bearing (36) that is set, and in third step, unlatching be used to have connecting device (18) hinge portion (14) die cavity and spray into the thermoplastic second synthetic material composition, the spring end that sets (30) of wherein said fastening spring (28) is involved in the described spring bearing (34).
6. by the described method that is used to make Wiper arm (10) of claim 5, it is characterized in that, in many cover plastic-blasting moulds, make described Wiper blade carriage (16) by synthetic material.
CN201010283995.9A 2009-09-14 2010-09-13 Wiper arm for automobile rear window wiper made of synthetic materials Expired - Fee Related CN102019908B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009029427.9 2009-09-14
DE102009029427.9A DE102009029427B4 (en) 2009-09-14 2009-09-14 Wiper arm made of plastic for a rear window wiper of a motor vehicle

Publications (2)

Publication Number Publication Date
CN102019908A true CN102019908A (en) 2011-04-20
CN102019908B CN102019908B (en) 2015-01-07

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CN201010283995.9A Expired - Fee Related CN102019908B (en) 2009-09-14 2010-09-13 Wiper arm for automobile rear window wiper made of synthetic materials

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CN (1) CN102019908B (en)
DE (1) DE102009029427B4 (en)
FR (1) FR2950012B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101182161B1 (en) * 2012-03-13 2012-09-12 동양기전 주식회사 Wiper apparatus improving durability

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2356606A1 (en) * 1973-11-13 1975-05-22 Bosch Gmbh Robert WIPERS, IN PARTICULAR FOR VEHICLES
DE2511013A1 (en) * 1975-03-13 1976-09-23 Bosch Gmbh Robert Vehicle windscreen wiper mechanism - has double securing system with spring loaded pawl and cover locking mechanism
US5890257A (en) * 1994-05-20 1999-04-06 Itt Automotive Europe Gmbh Wiper arm for windshield-washing systems on motor vehicles
DE19747857A1 (en) * 1997-10-30 1999-05-06 Bosch Gmbh Robert Wiper arm for a wiper
EP1125806A1 (en) * 2000-02-18 2001-08-22 Federal-Mogul S.A. Windscreen wiper device
CN1422220A (en) * 2001-02-10 2003-06-04 罗伯特-博希股份公司 Wiper arm
DE102006034705A1 (en) * 2006-07-27 2008-02-28 Valeo Systèmes d`Essuyage Wiper arm manufacturing method for windscreen wiper system of vehicle i.e. road vehicle, involves forming wiper arm joint by two hinge sections, and arranging sections such that hinge connection of components is held by hinge sections
CN101407208A (en) * 2008-11-26 2009-04-15 重庆长安汽车股份有限公司 Structure for connecting wiping arm and joint of vehicle window rear wiper

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2356606A1 (en) * 1973-11-13 1975-05-22 Bosch Gmbh Robert WIPERS, IN PARTICULAR FOR VEHICLES
DE2511013A1 (en) * 1975-03-13 1976-09-23 Bosch Gmbh Robert Vehicle windscreen wiper mechanism - has double securing system with spring loaded pawl and cover locking mechanism
US5890257A (en) * 1994-05-20 1999-04-06 Itt Automotive Europe Gmbh Wiper arm for windshield-washing systems on motor vehicles
DE19747857A1 (en) * 1997-10-30 1999-05-06 Bosch Gmbh Robert Wiper arm for a wiper
EP1125806A1 (en) * 2000-02-18 2001-08-22 Federal-Mogul S.A. Windscreen wiper device
CN1422220A (en) * 2001-02-10 2003-06-04 罗伯特-博希股份公司 Wiper arm
DE102006034705A1 (en) * 2006-07-27 2008-02-28 Valeo Systèmes d`Essuyage Wiper arm manufacturing method for windscreen wiper system of vehicle i.e. road vehicle, involves forming wiper arm joint by two hinge sections, and arranging sections such that hinge connection of components is held by hinge sections
CN101407208A (en) * 2008-11-26 2009-04-15 重庆长安汽车股份有限公司 Structure for connecting wiping arm and joint of vehicle window rear wiper

Also Published As

Publication number Publication date
FR2950012A1 (en) 2011-03-18
CN102019908B (en) 2015-01-07
DE102009029427B4 (en) 2020-07-30
FR2950012B1 (en) 2016-11-11
DE102009029427A1 (en) 2011-03-24

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Granted publication date: 20150107

Termination date: 20200913