CN102652080A

CN102652080A - Windshield wiper device

Info

Publication number: CN102652080A
Application number: CN2010800573075A
Authority: CN
Inventors: M.吉尔歇尔; E.林德
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2009-12-16
Filing date: 2010-10-25
Publication date: 2012-08-29
Anticipated expiration: 2030-10-25
Also published as: DE102009054711A1; BR112012014255A2; WO2011072920A1; CN102652080B; EP2512878A1

Abstract

The present invention relates to a windshield wiper device (1) for a motor vehicle, having a wiper motor, which can be fastened via a transmission housing (2) connected to the wiper motor to a vehicle body of the motor vehicle by means of a motor plate (3), namely, the wiper carrier (4) is held clamped between the transmission housing (2) and the motor plate (3), wherein at least one protrusion (10) is provided on the motor plate (3) and/or the transmission housing (2) and is arranged such that it rests against the wiper carrier (4) forming a form-fitting connection.

Description

Wiper device

Technical field

The present invention relates to a kind of wiper device that is used for self-propelled vehicle with Windshield Wiper motor; Said Windshield Wiper motor is through can be fixed on by the motor plate on the Windshield Wiper bearing that is configured on the motorcar body with said Windshield Wiper motor bonded assembly gear mechanism housing in the following manner, and promptly said Windshield Wiper bearing keeps clamping between said motor plate and said gear mechanism housing.

Background technology

The wiper device of the above-mentioned type is disclosed.Following in principle in this target, promptly can said Windshield Wiper motor be connected on the vehicle body and also as far as possible reliably and can absorb flexural load and torque load.Said wiper device should be realized manufacturing with low cost simultaneously.

Known a kind of anchor fitting that is used for wiper device from document FR 2 783 477 A1, wherein said Windshield Wiper bearing is fixing between the containment structure of motor plate and encirclement Windshield Wiper bearing.But such fixing because the profile that the shape of shell and Windshield Wiper bearing accurately cooperates seems very costliness and easy break-down.The manufacturing of said containment structure is very expensive in addition.The allowance error that produces in the mill also demonstrates big problem for this kind shape fixing.

Known a kind of wiper device from document DE 198 20 798 A1; Said wiper device comprises the Windshield Wiper motor; Said Windshield Wiper motor through with said Windshield Wiper motor bonded assembly gear mechanism housing, and be fixed on the vehicle body through the Windshield Wiper bearing of motor plate with the form of the pinch tube that especially is configured to hollow profile.Said gear mechanism housing has a plurality of spiral brancheses support part, and said spiral branches support part is arranged with respect to the fixed cover of outgoing side with interval.It is that spiral branches support part and opposite side are to be pressed into wherein in other words between the fixed cover that said Windshield Wiper bearing is encased in a side, thus said Windshield Wiper bearing can be supported on the said fixed cover with said spiral branches support part on.For fear of skidding off from this position; Form with the motor plate is provided with stop motion mechanism on said Windshield Wiper bearing, spiral branches support part and the fixed cover that said gear mechanism housing tightened and correspondingly be supported on to said stop motion mechanism can through said spiral branches support part and said driving device is in other words on the bearing (Gegenlager).Therefore said Windshield Wiper bearing keeps clamping between said gear mechanism housing and said motor plate.Said Windshield Wiper bearing or said pinch tube are fixed to form fit with respect to said gear mechanism housing on axial direction in the following manner; Promptly in said spiral branches support part and/or the fixed cover zone have recess (Einbuchtung), said recess with respect to said spiral branches support part in other words fixed cover construct according to profile ground.Realize through threaded fasteners being encased in the hole that is configured on the motor plate and through the tightening of spiral branches support part with being configured in the gear mechanism housing subsequently the location of said Windshield Wiper bearing between said motor plate and said gear mechanism housing.Therefore the rotation of the said pinch tube that produces through the power that affacts on the said wiper device only suppresses through the friction face that between said in other words fixed cover in said spiral branches support part and said Windshield Wiper bearing, forms.

Yet the shortcoming of this system is that the possible rotation that reacts on said friction force between gear mechanism housing and motor bearing is very little in other words between motor plate and Windshield Wiper bearing, thereby makes that transmitted force and moment are limited consumingly.Possibly act on bending force and/or twisting resistance on the said Windshield Wiper bearing therefore can be partly, only absorbed by said fixed sturcture deficiently.

Summary of the invention

Therefore task of the present invention is, a kind of wiper device is provided, and said wiper device can realize on said motor plate also that when producing high bending force and/or twisting resistance the better way of said Windshield Wiper motor fixes.

Solve in the following manner by task of the present invention; Promptly on said motor plate and/or said gear mechanism housing, at least one convexity is set; Said convexity is so arranged, thereby said convexity abuts on the said Windshield Wiper bearing under formation form fit bonded assembly situation.

In other words, protruding except through additionally having realized being connected of form fit between Windshield Wiper bearing and the convexity being connected clamping pure power transmission that said Windshield Wiper bearing produces between motor plate and the gear mechanism housing through being provided with.Said convexity works as a kind of engaging piece at this, and said engaging piece is through possible bending force and/or the twisting resistance of corresponding support counteraction on said Windshield Wiper bearing.Basically can be absorbed in higher axial force and the moment of deflection or the twist moment of said wiper device junction thus.The said wiper device scantling of structure of the connecting portion of said wiper device in other words remains unchanged at this.

Said in an embodiment of the present invention convexity can be constructed with said gear mechanism housing and/or said motor plate integratedly.Above-mentioned situation is especially advantageously estimated as follows, has promptly reduced the part variety thus especially when mounted, and then has also reduced the risk of assembly error.

Simple especially and failure-free embodiment regulation of the present invention is processed bending ram contact pin with said convexity.Said bending ram contact pin can so be constructed at this, thereby said bending ram contact pin and said Windshield Wiper bearing form big as far as possible contact surface.Above-mentioned situation for example can realize through following mode, and the end face of promptly said bending ram contact pin is with respect to said Windshield Wiper bearing, especially construct according to profile ground with respect to the contact area of the end face with bending ram contact pin of said Windshield Wiper bearing.Alternatively, said convexity also can be installed in the said motor plate through simple punching press.Should on said gear mechanism housing, convexity be set, thereby said convexity can just be constructed when said gear mechanism housing is cast.

Alternatively said convexity also can be configured to independent workpiece and tighten, welds or paste on said motor plate and/or the said gear mechanism housing.Possible thus is that the position of reversing hill holder accordingly and/or also constructing said convexity changeably can also be set in motor plate of having made or gear mechanism housing.What realize thus in addition is that for example the latter can be replaced with very simple mode when the material failure of said convexity.

Possible in addition is to select to be used for the material of said convexity, thereby make said material be different from the said motor plate material of said gear mechanism housing in other words.So that the material of said convexity can be selected is telescopic, resilient material particularly, so that further improve the friction coefficient between said convexity and the said Windshield Wiper bearing.

About other favourable embodiment of the present invention with reference to dependent claims and with reference to the description next carried out according to the right a plurality of embodiment of accompanying drawing.

Description of drawings

Accompanying drawing illustrates:

Fig. 1 is the schematic fragmentary cross-sectional view by wiper device of the present invention;

Fig. 2 has two birds-eye vieies by the motor plate of convexity of the present invention;

Fig. 3 is the lateral plan by the motor plate of Fig. 2; And

Fig. 4 by Fig. 1, have a part diagrammatic sketch by wiper device of the present invention of the Windshield Wiper bearing that assembles.

The specific embodiment

Fig. 1 shows the part diagrammatic sketch by wiper device 1 of the present invention.In order to simplify, this diagrammatic sketch is summed up as fixation principle figure.

Said wiper device 1 has the Windshield Wiper motor that is not shown specifically, and said Windshield Wiper motor is fixed on the vehicle body of self-propelled vehicle with motor plate 3 through the gear mechanism housing 2 that links to each other with the Windshield Wiper motor.

For fixing said Windshield Wiper motor on vehicle body, Windshield Wiper bearing 4 is arranged on the vehicle body in this form with pinch tube (Klemmrohr), and said Windshield Wiper bearing keeps clamping between said gear mechanism housing 2 and said motor plate 3.Said Windshield Wiper bearing 4 is configured to hollow profile (Hohlprofil) and so is encased in the said gear mechanism housing 2; Thereby guide said Windshield Wiper bearing between a fixed cover 5 and two fixed covers 7, to pass, output shaft 6 is bearing in the said fixed cover.The connection of said in the present embodiment wiper device 1 on said vehicle body realizes through clamped joint in the following manner; After promptly on said motor plate 3 is placed in the fixed cover 7 that is configured on the said gear mechanism housing 2, threaded fasteners 8 is packed into through the hole 9 of structure in motor plate 3 and is tightened with fixed cover 7.

Said fixed cover 7 is arranged on the both sides at the fixed cover 5 of said output shaft 6 on the axial direction of said Windshield Wiper bearing 4 with staggering.The circumferential surface of said fixed

cover

5,7 is configured to taper shape at this, so that can compensate the possible production tolerance of said Windshield Wiper bearing 4.

As what from Fig. 2 to 4, learn in detail, a plurality of protruding 10 forms with bending ram contact pin are arranged in the motor plate 3, the said a kind of engaging piece that convexes to form said motor plate 3 and said Windshield Wiper bearing 4.Said protruding 10 have leg-of-mutton basically cross-sectional plane in the illustrated embodiment, in the state that assembles, produce the contact surface linear with said Windshield Wiper bearing 4 thus.

In order to make by of the present invention protruding 10; At first by said motor plate 3 through cutting or punching press cuts out said protruding 10 outline and the convexity that cuts out or stamp out 10 then along said Windshield Wiper bearing 4 to be directed downwards bending so long, until produce said protruding 10 with said Windshield Wiper bearing 4 between contact.The end face 11 of said convexity forms being connected of form fit with said Windshield Wiper bearing 4 subsequently and is stuck in to a certain extent on the said Windshield Wiper bearing 4, can not rotate or skid so that guarantee said Windshield Wiper bearing.

Said in the illustrated embodiment end face 11 is so constructed, thereby said end face extends with the axis that is formed by said Windshield Wiper bearing 4 basically abreast.Certain said convexity also can just rotate through 90 ° of ground structures with respect to the convexity that illustrates 11.In order to form said Windshield Wiper bearing when protruding and to contact with line between the said convexity in that orientation being said, said end face also can be according to following contour construction.For example said end face can be configured to for this reason: said end face has the radius that has according to said Windshield Wiper bearing and carries out the space that curve moves towards.

Claims

1. the wiper device (1) that is used for self-propelled vehicle; It has the Windshield Wiper motor; Said Windshield Wiper motor can be by motor plate (3) through being fixed on the vehicle body of self-propelled vehicle with said Windshield Wiper motor bonded assembly gear mechanism housing (2) in the following manner; Be that said Windshield Wiper bearing (4) keeps clamping between said gear mechanism housing (2) and said motor plate (3), it is characterized in that, upward and/or on the said gear mechanism housing (2) at least one convexity (10) is set at said motor plate (3); Said convexity is so arranged, thereby said convexity abuts on the said Windshield Wiper bearing (4) under the bonded assembly situation that forms form fit.

2. by the described wiper device of claim 1, it is characterized in that said convexity (10) is constructed with said motor plate (3) and/or said gear mechanism housing (2) integratedly.

3. by claim 1 or 2 described wiper devices, it is characterized in that said convexity (10) forms through dashing curved contact pin.

4. by each described wiper device in the aforesaid right requirement; It is characterized in that the end face (11) of said convexity (10) is with respect to said Windshield Wiper bearing (4), especially follow profile ground structure with respect to the contact area with said convexity (10) of said Windshield Wiper bearing.

5. by each described wiper device in the aforesaid right requirement, it is characterized in that said convexity (10) is installed in the said motor plate (3) through punching press.

6. by the described wiper device of claim 1, it is characterized in that, said convexity (10) is screwed, melting welding, soldering or bond to that said motor plate (3) is gone up and/or said gear mechanism housing (2) on.

7. by the described wiper device of claim 6, it is characterized in that that the material of said convexity (10) is configured to is elastomeric, spring especially.