CN1113009C

CN1113009C - Brush of windscreen wiper with articulated structural member specially adapted for car

Info

Publication number: CN1113009C
Application number: CN97104924A
Authority: CN
Inventors: 让-路易斯·泰恩达斯
Original assignee: Valeo Systemes dEssuyage SAS
Current assignee: Valeo Systemes dEssuyage SAS
Priority date: 1996-03-27
Filing date: 1997-03-26
Publication date: 2003-07-02
Anticipated expiration: 2017-03-26
Also published as: CN1167707A; FR2746748A1; FR2746748B1

Abstract

The auto windscreen wiper has a compensator belonging to the wiper blade articulated structure having a hollow body with an upper back and two lateral webs. The body central part, has at least a first section (TGL1) of greatest width and an adjacent section of reduced width (TLR), also has a second section of greater width (TGL2) equal to that of the first section adjacent to the reduced width opposite the first section. The central part comprises two longitudinal grooves which extends nearby the side of the upper back of the reduced width section.

Description

Be used in particular for blade automobile, that have an articulated structure spare

Technical field

The present invention relates to a kind of wind wiper brush that is used in particular for automobile, it has one and belongs to the member that swept area of wiper blade supports articulated structure.

Background technology

The articulated structure of blade is made of different framing members, and framing member is finished by for example steel plate cutting, bending and/or punching press, and the cross-sectional plane of each framing member all is inverted U-shaped substantially, goes up the back of the body and two opposing side flaps constitute by one.

Each framing member is all hinged by the free end of intermediate portion and adjacent upper junction member, and for this reason, adjacent upper junction member comprises a U-shaped end, with the centre portion overlap joint of articulation piece.

Articulated mounting is made of for example axle, and axle passes the side plate of upper component end and the flank of articulation piece centre portion.

For the outward appearance that makes blade reaches optimization as far as possible, the transverse width of centre portion in hinged and join domain of the articulation piece of prolongation upper component end end best and upper component is basic identical.

But must dwindle the transverse width of articulation piece centre portion subsequently, make its end that can enter upper component, thereby can between these two parts, carry out hinged with relative angle moving movement.

Therefore, known articulated structure spare is asymmetrical design, and promptly it dwindles transverse width by a medium-sized transverse width and second half basically and constitutes, and hinge hole is positioned on half of reduced width, near the junction of two parts.

Because the asymmetry of this member, make assembling, especially automation assemble and become very complicated, because must accurately determine the position of articulation piece according to the position of the upper component of direct neighbor, any off-square location all can make assembling or later at least relatively moving carry out.

In order to remedy above-mentioned deficiency, can consider to adopt the framing member shown in Figure 3 as document FR-A-1576 577.But the document does not explain how to implement this framing member.Therefore, the objective of the invention is to implement not have in the mode of simple economy the blade of above-mentioned defective.

Summary of the invention

For this reason, the present invention proposes a kind of wind wiper brush that is used in particular for automobile, it comprises that belongs to the member that swept area of wiper blade supports articulated structure, this framing member comprises that an overall shape is microscler hollow shell, its cross-sectional plane is inverted U-shaped, constitute by a last back of the body and two flanks, the centre portion of housing comprises first section and the adjacent segment that transverse width dwindles that transverse width is bigger at least, flank in the transverse width section of dwindling is provided with articulated mounting, in order to this framing member and the free end that is overlapped on another U-shaped framing member on the reduced width section are hinged together, the centre portion of housing comprises bigger second section of width, its width is basic identical with first section, adjacent with the reduced width section and with first section relative, it is characterized in that, centre portion comprises two vertical with parallel grooves, on the reduced width section TLR near on the back of the body side near straight-line extension.

According to another feature of the present invention:

The center cross-sectional plane symmetry that the centre portion of-housing passes through with respect to hinged geometrical axis;

The centre portion of-housing is with respect to vertical section, center symmetry;

-framing member is made by a homogenous material spare;

The cutting of-structure steel plate, punching press and/or curved analysing form;

The back of the body of going up of-centre portion is flat on the whole length of reduced width section and the adjacent big section of two width substantially;

The planar section that the upward back of the body of-centre portion has relative its adjacent planar part vertically inwardly to stagger in the zone of reduced width section, its adjacent planar part straight-line extension on two bigger adjacent segment of width is a coplane substantially also;

-described articulated mounting comprises the hole of two lateral alignment that form on flank;

-flank and thickness substantially constant on the whole length of component housing of upward carrying on the back;

-at each end of the vertically relative end head of member a holding part is arranged all, in order to the last root of clamping swept area of wiper blade.

Description of drawings

Other features and advantages of the present invention will embody in the detailed description below, for the ease of understanding, and explanation with reference to the accompanying drawings, in the accompanying drawing:

-Fig. 1 illustrates the block diagram of a framing member in the blade articulated structure with is olation, and shows one section end with its another framing member of pivotally attached;

-Fig. 2 is similar to Fig. 1, shows according to member of the invention process;

-Fig. 3 to Fig. 6 is one group of partial schematic diagram, shows the different step of manufacture method of first kind of embodiment of member of the present invention shown in Figure 2;

-Fig. 7 to Figure 10 is similar to Fig. 3 to Fig. 6, shows the step of manufacturing of second kind of embodiment of member centre portion of the present invention.

The specific embodiment

A kind of framing member 10 has been shown among Fig. 1, and it is a transverse arm in the wind wiper brush articulated structure.

The transverse arm 10 here is a part that forms with steel plate cutting, punching press and bending.

Transverse arm 10 is that an overall shape is microscler part, and its lateral cross section is tangible inverted U and is made of the last back of the body 12 and two flanks 18 basically.

Near each of the vertically relative end 20 of transverse arm 10, a holding part 22 that design is known is arranged all, in order to cooperate with the last root of swept area of wiper blade (not shown).At the housing centre portion of transverse arm 10, the section TGL1 of a big transverse width L is arranged, it prolongs by the section TLR of reduced width l.

Two opposing side flaps 18 along section TGL1 and TLR are substantially parallel each other.

The centre portion of transverse arm 10 is used for blade, for example the U-shaped free end 24 of the main folder 26 of brush is hinged.

U-shaped end 24 is used for the lap width section of dwindling TLR, and its whole width equals the width L of big width section TGL1 substantially.

The side plate 28 of U-shaped end 24 extends in order to the flank 18 along reduced width section TLR, and has for example hole 32 of alignment, hole 32 is on assembling position the time, align with the corresponding aligned hole 30 that forms on the flank of reduced width section TLR, hole 30 and 32 is used to admit the jointed shaft (not shown), and this has determined the hinge axes X-X of transverse arm 10 with main folder 26 end 24.

According to Known designs shown in Figure 1, the housing of transverse arm 10 is from Fig. 1, progressively be contracted to a section of retained part 22 to left side longitudinal extension by width after the reduced width section, therefore from the center cross-sectional plane that axis X-X passes through, transverse arm 10 is as general as asymmetrical design.

Introduce now according to transverse arm 10 of the invention process, extremely shown in Figure 10 as Fig. 2 especially, mark with identical label with the same or similar part of Fig. 1 among the figure.

As shown in the figure, the center cross-sectional plane that passes through with respect to hinge axes X-X of transverse arm 10 is the holohedry design.

Like this, the housing centre portion of transverse arm 10 comprises interlude TLR and two adjacent and relative big width section TGL1 and TGL2 of a reduced width l.

The stage casing TLR of reduced width can make things convenient for the installation of the shaping end 24 of main folder 26, does not install and be hinged on the end 24 of main folder 26 along one or another direction and be holohedry design-calculated transverse arm 10 with respect to the center cross-sectional plane with can making any distinction between.

As depicted in figs. 1 and 2, transverse arm 10 also is symmetric design with respect to the vertical section, center.

Introduce the first kind of specific embodiment of this transverse arm 10 shown in Figure 2 and the different step of manufacture method thereof referring now to Fig. 3 to Fig. 6.

Here the parts that relate to are steel plate F cutting, bending, the moulding that equate with a thickness and/or are stamped to form.

Only show the centre portion of transverse arm 10 among the figure.

As shown in Figure 6, transverse arm 10 to go up the back of the body 12 be a continuous shape, promptly it be one along the length of the length of reduced width section TLR and big width section TGL1 and the TGL2 planar section of extension continuously.

In order to finish this embodiment, carry out as follows.

As shown in Figure 3, about centre portion, the cutting action of 30 and two relative longitudinal slots 34 from the hole is when transverse arm 10 is finished, longitudinal slot extends near two opposed side edges of the last back of the body 12, promptly with on the joint face of 12 and two opposing side flaps 18 of the back of the body bend accordingly on the district LP.

Groove 34 is longitudinal extension on the whole substantially length of reduced width section TLR.

The existence of groove 34, except after being convenient to by folding line LP shown in Figure 4 bending flank 18, also can be before flank 18 bendings, make corresponding to flank 18 parts in future of reduced width section TLR and be out of shape by punching press, promptly, the plane of its relative steel plate F is out of shape vertically downward from Fig. 3 and Fig. 4.

Behind this second road stamping procedure, for the housing centre portion of transverse arm 10, only need just make its side direction crimp vertically downward along LP line bending flank 18, crimp one by one as shown in Figure 5, or crimp simultaneously are to reach shape shown in Figure 6.

In second kind of embodiment shown in Figure 10, can see, along the interlude TLR of reduced width extend to go up the back of the body 12 be a planar section, the coplanar portions that goes up the back of the body 12 of big relatively width section TGL1 in this plane and the TGL2 height that staggers vertically downward, big width section with the corresponding same plane of steel plate F original plane on extend.

First procedure of manufacture method therefore shown in Figure 7 is with shown in Figure 3 the same, and this procedure is cutting hole 30 and groove 34.

The second road stamping procedure shown in Figure 8 some with shown in Figure 4 identical, be the flank part 18 of punching press corresponding to reduced width section TLR, different is the back 12 of moulding simultaneously corresponding to this same reduced width section TLR, staggers thereby obtain above-mentioned height shown in Figure 10 when transverse arm is finished.

The following operation of flank 18 that bends together shown in Figure 9 is with identical with reference to the explanation that Fig. 5 did.

Claims

1. the blade of automobile, it has one and belongs to the member (10) that swept area of wiper blade supports articulated structure, this member comprises that an overall shape is microscler hollow shell, its cross-sectional plane is inverted U-shaped, constitute by the last back of the body (12) and two flanks (18), wherein, the centre portion of housing comprises first section (TGL1) and the adjacent segment (TLR) that transverse width dwindles that transverse width is bigger at least, articulated mounting (30) is set on the latter's flank, in order to this framing member and another free end that is overlapped on the U-shaped framing member on the reduced width section (TLR) is hinged, wherein, the centre portion of housing comprises big section (TGL2) of second width, its width equals first section (TGL1), it is adjacent with reduced width section (TLR) and relative with first section (TGL1), it is characterized in that centre portion comprises two parallel longitudinal direction grooves (34), at the side edge straight-line extension of the close last back of the body (12) of reduced width section (TLR).

2. according to the blade of claim 1, it is characterized in that the center cross-sectional plane symmetry that the centre portion of housing passes through with respect to hinged geometrical axis (x-x).

3. blade according to claim 1 and 2 is characterized in that, the centre portion of housing is with respect to vertical section, the center symmetry perpendicular to hinged geometrical axis (X-X).

4. blade according to claim 1 is characterized in that, framing member is made by a homogenous material spare.

5. according to the blade of claim 4, it is characterized in that it forms with steel plate cutting, punching press and/or bending.

6. according to the blade of claim 5, it is characterized in that the back of the body (12) of going up of centre portion is flat on the length of reduced width section (TLR) and two adjacent width big section (TGL1, TGL2).

7. according to the blade of claim 5, it is characterized in that, the back of the body (12) of going up of centre portion has in the zone of reduced width section (TLR) planar section that its adjacent planar part relatively vertically inwardly staggers, and its adjacent planar part is at two adjacent width last straight-line extension and be coplane of big section (TGL1, TGL2).

8. according to the blade of claim 1, it is characterized in that described articulated mounting comprises two in flank (18) hole (30) upward that form, lateral alignment.

9. according to the blade of claim 1, it is characterized in that the thickness of the flank (18) and the last back of the body (12) is constant on the whole length of member (10) housing.

10. according to the blade of claim 1, it is characterized in that a holding part (22) is all arranged on each end of the relative longitudinal end of member (10), be used for the last root of clamping swept area of wiper blade.