CN102275566A

CN102275566A - Wiper having limited angular stroke

Info

Publication number: CN102275566A
Application number: CN2011101417920A
Authority: CN
Inventors: 帕斯卡尔·瓦彻; 纪尧姆·巴雷特
Original assignee: Valeo Systemes dEssuyage SAS
Current assignee: Valeo Systemes dEssuyage SAS
Priority date: 2010-03-29
Filing date: 2011-03-29
Publication date: 2011-12-14
Anticipated expiration: 2031-03-29
Also published as: CN102275566B; DE102011001630A1; FR2957877B1; FR2957877A1

Abstract

The invention relates to a wiper with a limited angular stroke and disclosed an assembly composed of an adapter and a connector. The assembly is applied for installing a brush of the wiper for wiping the windshield of a vehicle on an activating arm (1) of the brush. The arm is operated to move in a way to be generally parallel to the plane of the surface of the windshield. The connector (10) which constitutes a clamping device of the brush comprises a transverse axle (13). The adapter is a device for connecting the assembly to the arm (1). The adapter and the connector turn with respect to each other in a plane perpendicular to an operating plane around of the transverse axle. According to the invention, the adapter (2) comprises at least one rotation stopping device (7a, 7b). The stopping device comprises extensions (6a, 6b) extending tangentially with respect to the transverse axle (13). The connector (10) comprises at least a stop surface cooperating with stopping devices (7a, 7b) in order to limit relative rotation of two elements in direction remote from an operating position.

Description

Wiper with angle stroke of qualification

Technical field

The invention belongs to the field of vehicle arrangement, more particularly, belong to the field of windshield wiping equipment.

Background technology

Automobile is equipped with the wiper system to guarantee the clean of Windshield and to avoid the sight line of driver observation peripheral situation disturbed usually.Usually, these wipers drive and have the brush of elongation by the arm that comes and goes angular motion, and this brush itself has the scraping blade made from plastic material (lame racleuse).These scraping blades are with respect to the Windshield friction and water is drained into outside driver's the visual field.Described brush is to make with such form: in traditional type, it is toggle clamp (é trier articul é) at a plurality of position clamping scraping blades, or in the type of early being called " flat swept area of wiper blade (flat blade) " (" flat scraping blade (lame plate) "), be the fixing semi-rigid assembly set of scraping blade on total length.In two kinds of solutions, brush is attached on the swivel arm of wiper by the assembly set of being made up of adaptor union and adapter.Adaptor union is the parts that directly are crimped on scraping blade or the flat swept area of wiper blade; And adapter is a centre part, and its permission is fixed on adaptor union on the arm of wiper.These two parts interconnect by lateral shaft, and described lateral shaft allows them by relatively rotating on the plane of arm process, and described plane is perpendicular to Windshield.

Usually, adaptor union is the parts that are roughly the shape of parallelepiped, has two sidewalls, will insert adapter between it.These two sidewalls connect by lateral shaft, described lateral shaft has such effect, by carrying out buckle in the groove on adapter so that insert wherein, this allows adaptor union to rotate with respect to adapter on perpendicular to the plane of Windshield, and final brush relatively rotating with respect to wiper.

Adapter also is the parts that are roughly parallelepiped shape, has two sides, is used for cooperating to guarantee the relative positioning of two parts with the sidewall of adaptor union.These faces are interconnective by one or more cross members, and described cross member forms connecting bridge and gives assembly set with enough rigidity.These connecting bridges can also be used to make adapter be suspended on Wiper arm.

According to different types, described arm can have straight shape in its end that has adapter, and it enters in the cave of estimating on the adapter; Perhaps have the U-shaped shape, adapter inserts wherein then.The example of adaptor union and adapter is described in the applicant's WO2007/144318 and WO2008/148615 patent application.Yet, two parts of this that describe in these documents, adaptor union and adapter have the shape of more complicated, wish it is simplified.

Yet one of function that these parts should be guaranteed is to limit the rotation freedom (libert é de rotation) of leaving adaptor union for, and described rotation is that adaptor union is with respect to the rotation of adapter around the adaptor union lateral shaft.Should leave certain angle freedom and be in the position of relative Windshield, promptly during control position, be well suited for the latter, and two parts can be directed rightly mutually in installation process with box lunch brush.On the other hand, should limit this angle freedom, be in apart from its control position position far away excessively and therefore produce the excessive angle of direction with arm to avoid brushing.If this is the case, if so in installation process the operator before wiper is returned to its control position, crack it open, can have the danger that damages wiper and even the danger that damages Windshield.This is because wiper can be retracted Windshield suddenly and may pat Windshield to contact with this Windshield in unexpected part under the effect of the return spring of arm.For being the modern Windshield of feature with little thickness, the angle that brush is taked with respect to the direction of arm should be above 30 °.Optimum value for the lock angle stroke that is allowed should be 15 ° (to allow easily to operate brush in the installation process) between 30 ° (to avoid returning the danger that damages under the situation of Windshield suddenly at brush).

Solution used in the prior art allows than the big a lot of stroke of these values, when they set range, they are realized by the stopper section, described stopper section is the protrusion with respect to the adaptor union connecting bridge, on the one hand, this has hindered adaptor union has been mounted on the arm, on the other hand, needs extra operation in the process of the injection molding of manufacture component.

Summary of the invention

Target of the present invention is to remedy these shortcomings by proposing following method: by be easy to make and do not make the parts that brush are mounted to the complicated operationization of Wiper arm, the rotation that the restriction adaptor union centers on first lateral shaft, allowed with respect to adapter on the direction away from control position.

For this reason, target of the present invention is the assembly set be made up of adaptor union and adapter, it is used for the brush of vehicle windscreen wiper is mounted to the actuating arm of described brush, be to move being roughly parallel on the plane of windscreen surface during the work of described arm, described adaptor union is formed the device of clamping brush and is had lateral shaft, described adapter is formed assembly set is connected to device on the arm, adapter and adaptor union can rotate around described lateral shaft on perpendicular to the plane of working face mutually, it is characterized in that, described adapter has at least one and rotates shutdown feature, it comprises the extendible portion that roughly tangentially extends with respect to described lateral shaft of adapter, and described adaptor union has at least one stop surface that can cooperate with described shutdown feature, to limit two elements away from relatively rotating on the direction of control position.

The resolute recovery (reprise) of the tangential orientation permissible stress (efforts) of extendible portion, and for determining providing great convenience property of range angle.

Advantageously, be less than 30 ° by the angle stroke of described shutdown feature and the permission of described stop surface.

So, got rid of any danger of the out of position of wiper brush, under the unsuitable situation of operation, described out of position may cause the damage of Windshield in changing the wiper process.

Preferably, described angle stroke is between 15 ° to 30 °.

Advantageously, described stop surface is approximately perpendicular to described tangential extension.

In a special embodiment, when described assembly set is mounted on the arm, in the time of in control position, stop surface is roughly parallel to working face ground orientation.

Preferably, adapter has the groove of the described lateral shaft of receivability and roughly has the shape of parallelepiped, has two sides perpendicular to groove direction location, and at least one described lateral longitudinal is to extending beyond described groove to form described extendible portion.

This structure is as feature: design simpler and therefore easier manufacturing.

Advantageously, shutdown feature is the par (m é plat) that forms in the extendible portion end of described side.So, when two parts mutually against the time, have better contact quality between them.

In a special embodiment, adaptor union roughly has the shape of parallelepiped pedestal, and two parallel facess extend forming two sidewalls with lateral shaft, and wherein, a face of parallelepiped forms described stop surface.

Advantageously, stop surface is a plane surface.When two parts against the time, this helps the contact quality between them, but also makes in the U-shaped of arm and not have obstacle when introducing assembly set.

The present invention has also required to make the adapter and the adaptor union of assembly set as described above, and described adapter and adaptor union are associated with the adaptor union and the adapter of complementation.

At last, the present invention relates to comprise by the wiper system of assembly set bonded assembly arm and brush as described above.

Description of drawings

In the reference schematic figures, during the illustrative that describes in detail below the embodiment that non-limiting embodiment provides describes, will understand the present invention as casehistory only better, and other targets of the present invention, details, feature and advantage will be more clear.

On these figure:

-Fig. 1 is the transparent view of the resolution model of the assembly set be made up of adaptor union and adapter according to embodiments of the present invention, and described assembly set is installed on the arm of wiper;

-Fig. 2 is the transparent view of the adapter outer end of Fig. 1;

-Fig. 3 is the transparent view of the assembly set outer end of Fig. 1, and described adapter is in stop dog position in the adaptor union of wiper.

The specific embodiment

In the following description, term vertically or the orientation of side direction reference arm is installed the wiper brush on described arm.The main shaft of longitudinal direction counterpart arm, and the lateral correspondence perpendicular to arm this and after installation the direction vertical with Windshield.Vertical for term, the outer or interior center of turn with respect to Wiper arm of term is judged.At last, reference direction for example goes up or is following to the direction perpendicular to Windshield (back is installed).

With reference to figure 1, see that the outer end of the end 1 of Wiper arm closes up so that stop with U-shaped.Insert adapter 2 in this U-shaped, according to the present invention, this adapter comprises two

side

3a and 3b, and described two sides interconnect by transverse wall 4 so that form the relatively case of rigidity with side 3.The shape of this adapter will be described in more detail with reference to figure 2.

Still with reference to figure 1, see adaptor union 10, according to the present invention, it comprises the pedestal 11 that is roughly parallelepiped shape, be equipped with two

sidewall

12a and 12b above the described pedestal, in adapter, just clamped the side 3a of adapter and the effect of 3b on extension on the side of pedestal 11 by buckle (encliqueter) in case described two sidewalls extend and have adaptor union.Therefore, the spacing between the adaptor union sidewall 12 is less times greater than the spacing that exists between the adapter side 3.Lateral shaft 13 extends between two sidewalls 12, and adapter has the effect of rotating around this lateral shaft 13 in predetermined angle limit.At last, the bottom of pedestal 11 is cut with groove 14, and this groove forms the track that wherein inserts flat swept area of wiper blade or scraping blade (not shown).

With reference now to Fig. 2,, see the outer end of adapter 2 with transverse wall 4, described transverse wall 4 forms case with side 3.In its outer end, wall 4 prolongs by being half-cylindrical rotating groove 5 end wises, and described groove is used at the lateral shaft 13 of connector fastener being admitted adaptor union to the adapter process.In order to ensure this buckle, half-cylindrical 5 opening is slightly less than 180 °, so that can apply power so that axle 13 enters in the groove 5.

Equally,

side

3a and 3b end wise prolong so that provide the side resting point for groove 5.These side

extendible portion

6a and 6b have roughly L shaped shape, and its branch end wise extends until surpassing groove 5, and its second branch extends towards the bottom around this identical groove 5.Second branch of each

extendible portion

6a and 6b ends at its bottom by the par 7a and the 7b of institute's reference separately.The rigidity of these side extendible portions makes, lateral shaft 13 enters and allows opening and closing of vertical branch then of vertical branch in groove 5 processes, to guarantee buckle.

Also shown the protruding pin 8 that is positioned on the transverse wall 4 in Fig. 2, it is cooperated with the hole of digging in the U-shaped end portion 1 of Wiper arm, allows the latter to be connected with adapter 2.

In Fig. 3, see that lateral shaft 13 is snapped into back locational adapter 2 at adaptor union 10 in the groove 5.Adaptor union 10 has surface 15, this surface form the top board of pedestal 11 and after installation with plane parallel ground, the vertical and horizontal ground extension simultaneously of Windshield.This surface is positioned at the opposite of par 7 of the extendible portion 6 of adapter 2.Surface 15 is flat generally, or at least, it in extendible portion 6 and adaptor union 10 contacted parts, is flat promptly between its exterior boundary and the part in described axle 13.

As shown at Fig. 3, par 7 contacts with plane surface 15, hindered adaptor union 10 in the clockwise direction any additional rotation and therefore limited the angle stroke of adaptor union with respect to adapter.The length of the vertical branch of

extendible portion

6a and 6b needs to arrange like this: with respect to adaptor union 10 to the aligned position of adapter 2, make the trip corresponding to the angle that is 15 ° to 30 °, described position obtains routinely by the cooperation of the alignment device on the interior section that is positioned at these two elements.

Notice that limit rotation realizes with the cooperating of stop plane 15 on the adaptor union that by the element 6 of adapter described element 6 tangentially extends with respect to described lateral shaft 13, described stop plane 15 is extended on the direction tangential perpendicular to this adapter element.

Now, use description to wiper is mounted to the operation that will carry out on the arm 1 with the U-shaped end that closes up, described wiper has according to adaptor union of the present invention-adapter packs component.

The operator, in the track 14 that scraping blade is placed in adaptor union after (if necessary), adapter 2 is parallel to that adaptor union 10 is placed so that side 3 between the sidewall 12 of described adaptor union.He guarantees, end wise, and lateral shaft 13 is in the face of groove 5, and he makes two parts mutual extrusion enter in the groove until this lateral shaft then, produces the buckle of adaptor union 10 to adapter 2 thus.In this position, adaptor union limits with respect to the angle stroke of adapter, on the one hand at anticlockwise direction, limit by the cooperation that is arranged in two components interior special alignment device partly, so just, determined control position, on the other hand in the clockwise direction, limit with the cooperating of plane surface 15 of adaptor union by the par 7 of adapter.

Wiper brush is such stack-mounted: the connector belt that the operator will be equipped with adapter is to arm 1 time and make the adaptor union longitudinal sliding motion so that it enters in the U-shaped shape of arm.Remain on this position by protruding pin 8 then, described protruding pin is cooperated with the arm hole of estimating for this reason.

The present invention distinguishes by the following fact mutually with prior art: the adapter element that forms the stopper section is along rotating tangent direction location with adaptor union, and this produces resolute stress by adaptor union 10 and its wall 15 and recovers.Second branch of extendible portion 6 has further improved this quality that contacts with the existence of the quadrature of plane surface 15 and par 7.

At last, by this tangential direction of second branch of extendible portion 6, can in the determining of stroke angles, easily obtain bigger particularity.Adjust stroke angles at the angle value (15 ° to 30 °) of hope and carry out, because only need to be provided with simply the length of second branch with extremely simple method.In the process of the injection molding for preparing adapter, carry out this adjustment.

The present invention has described the continuous upper surface that forms connector base 11 with plane surface 15, has the benefit that does not produce obstacle when adapter being introduced the U-shaped part of arm like this.It is apparent that described upper surface can be only by two surface compositions that area is more limited, so that be arranged to the latter perpendicular and they are cooperated mutually with the par 7 that is positioned at these second branch end with second branch of extendible portion 6.

Claims

1. assembly set of forming by adapter and adaptor union, be used for the brush of the wiper of wiping vehicle windscreen is mounted to the actuating arm of described brush, (1) on, be to move being roughly parallel on the plane of windscreen surface during the work of described arm, described adaptor union, (10) form the holding device of brush and have lateral shaft, (13), described adapter, (2) composition is linked to arm with assembly set, (1) device on, described adapter and described adaptor union can center on described lateral shaft on perpendicular to the plane of working face, (13) rotate mutually

It is characterized in that, described adapter (2) has at least one and rotates shutdown feature (7a, 7b), described shutdown feature comprises the extendible portion (6a that roughly tangentially extends with respect to described lateral shaft (13) of adapter, 6b), and described adaptor union (10) has, and at least one can (7a, 7b) Xie Zuo stop surface (15) be to limit two elements away from relatively rotating on the direction of control position with described shutdown feature.

2. according to the assembly set of claim 1, wherein, by described shutdown feature (7a, 7b) and the angle stroke that allows of described stop surface (15) less than 30 °.

3. according to the assembly set of claim 2, wherein, described angle stroke is 15 to 30 °.

4. according to the assembly set of one of claim 1 to 3, wherein, at work, stop surface (15) roughly tangentially extends perpendicularly with described.

5. according to the assembly set of one of claim 1 to 4, wherein, when described assembly set is mounted on the arm, in the time of on control position, stop surface (15) is roughly parallel to the working face orientation.

6. according to the assembly set of one of claim 1 to 5, wherein, adapter (2) has the groove (5) that can admit described lateral shaft and roughly has the shape of parallelepiped, described parallelepiped shape comprises the side (3a perpendicular to groove direction location, 3b), at least one described side end wise extend beyond described groove with form described extendible portion (6a, 6b).

7. according to the assembly set of claim 6, wherein, (7a 7b) is extendible portion (6a, 6b) par that forms, end in described side to shutdown feature.

8. according to the assembly set of one of claim 1 to 7, wherein, adaptor union (10) roughly has the shape of parallelepiped pedestal (11), two parallel facess of this parallelepiped extend to form two sidewall (12a with lateral shaft (13), 12b), and wherein, parallelepiped face is formed described stop surface (15).

9. assembly set according to Claim 8, wherein, stop surface (15) is a plane surface.

10. adapter can be formed assembly set according to one of claim 1 to 9 with adaptor union.

11. an adaptor union can be formed assembly set according to one of claim 1 to 9 with adapter.

12. a wiper system has by assembly set bonded assembly arm and brush according to one of claim 1 to 9.