CN1906067A

CN1906067A - Arrangement for a wiping mechanism guiding a drive shaft enabling the drive shaft to be retracted in case of impact

Info

Publication number: CN1906067A
Application number: CNA2004800409785A
Authority: CN
Inventors: 让-皮埃尔·厄斯塔什; 马塞尔·特雷布埃
Original assignee: Valeo Systemes dEssuyage SAS
Current assignee: Valeo Systemes dEssuyage SAS
Priority date: 2003-12-23
Filing date: 2004-12-20
Publication date: 2007-01-31
Anticipated expiration: 2024-12-20
Also published as: JP2007515346A; EP1697183A1; KR20060129297A; FR2863991A1; CN100522705C; WO2005070734A1; FR2863991B1

Abstract

The invention concerns an arrangement for mounting and pivotally guiding about a generally vertical axis (A) a drive shaft (12) of a wiping mechanism comprising a guide plate (10) including a cylindrical shank (20) wherein said shaft (12) is pivotally guided. The invention is characterized in that the shaft (12) comprises a bulge (24) received inside a housing (26) matching the shank (20) and capable of exiting the housing (26) by elastic deformation of the bulge (24) and/or of the housing, through an axial displacement downward of the shaft (12) relative to the shank (20), when the wiping mechanism is subjected to a violent impact.

Description

The guide piece of the axle drive shaft of wiping mechanism---it makes described axle drive shaft indentation when bumping

Technical field

[01] the present invention proposes the pivot guide piece of the axle drive shaft of wiping mechanism, and it can make in upper end indentation (effacement) machinery space of described axle when bump takes place.

[02] the present invention especially proposes pivot guiding and erecting device, it is used for centering on the axle drive shaft that an axis vertical generally with respect to a body structural member of self-propelled vehicle pivots and lead and a wiping mechanism is installed, wherein, one upper end of described axle drive shaft is fixed in and is scraped wiping arm, and a crank of a kinematic link system is fixed in the bottom of described axle drive shaft, the pivot guiding of described type has a guide plate with erecting device, described guide plate is for fixing to body structural member, and described pivot guiding has a cylindricality axle sleeve with erecting device, and described axle is quilt pivot guiding in this cylindricality axle sleeve.

[03] just in case vehicle and pedestrian are bumped against, projection partly constitutes the object of hurting sb.'s feelings at the wiping mechanism of outside vehicle generally, and the danger that causes injury is arranged.

Background technology

[04] known device is to make the upper end of axle drive shaft with respect to vehicle body indentation down, especially WO-A-99, and 38736 devices that propose can make axle drive shaft axially slide in axle sleeve when contingency bumps.

[05] DE-A-195,46,906 also propose this device, and it can carry out indentation by a resilient ring of putting between axle and guide bush thereof.

[06] ring is fixed in axle sleeve, has a plurality of jerk-finger bars, and the latter is received in the annular neck portion of axle, is suitable for breaking away from when contingency bumps neck.

[07] still, this device need use the complicated subring of structure, thereby has increased its manufacturing cost.

Summary of the invention

[08] the present invention is intended to propose a kind of axle drive shaft guide piece, and the holding element of axle has the structure of simplification.

[09] for this reason, the present invention proposes a kind of device of aforementioned type, it is characterized in that axle has a bump, it is received in the complementary seat chamber of axle sleeve, be used to implement locking with respect to the axle of axle sleeve perpendicular movement, when wiping mechanism suffers fierce collision, its normal component (F) down, component value greater than one determine threshold value the time, the elastic deformation that described bump is suitable for by bump breaks away from a seat chamber, and/or breaks away from described seat chamber by axle with respect to axle sleeve moving axially down.

[10] according to another feature of the present invention:

[11]-method of seat chamber by molded elastically deformable material be by material (the venu de matiere avec le that comes from axle sleeve

) realize;

[12]-the seat chamber be implemented on one with spool coaxial ring that is cylindricality generally on, its material with elastically deformable is made, and is received in the cavity of axle sleeve;

[13]-cavity have in radially size so that when bump breaks away from the seat chamber, increase the external diameter of ring greater than the section of outer radial size of ring;

[14]-section of cavity is truncated cone shape generally;

[15]-bump made by the material that comes from described axle;

[16]-bump is an insertion that is fixed on the axle;

[17]-the seat chamber is arranged in the place, following axial end of axle sleeve;

[18]-bump is spherical in shape generally with the seat chamber;

[19]-and the seat chamber is by the conical ring part down extension coaxial with axle, and its internal diameter increases down, forms the inclined-plane;

[20]-and the upper end of axle is fixed in by a coupling link and scrapes wiping arm, and described coupling link is suitable for separating from axle or from arm when collision;

[21]-and axle sleeve extends axially up by an annular ring circle body, and during collision, arm is suitable for being bearing on the described annular ring circle body, separates with arm to cause ring;

[22]-and device has a grommet type seals, and the lower end in its present chamber is arranged between bump and the seat chamber.

Description of drawings

[23] with reference to accompanying drawing and following detailed description, further feature of the present invention and preceence will be better understood, and accompanying drawing is as follows:

[24] Fig. 1 is the three-dimensional cut-away illustration that is used to install the device of the axle drive shaft with a bump and a complementary seat chamber of the present invention;

[25] Fig. 2 A and 2B are the section-drawings along axis A of device shown in Figure 1, illustrate before the collision and the relative position of axle drive shaft and axle sleeve afterwards;

[26] Fig. 3 A to 3C is the amplification detail drawing of the different embodiments of bump;

[27] Fig. 4 A and 4B are similar to Fig. 2 A and 2B, and another embodiment in a chamber is shown.

The specific embodiment

[28] hereinafter, identical, similar or similar member indicates with identical label.

[29] Fig. 1 illustrates and is used for the plate 10 that an axle drive shaft 12 pivots and leads around a vertical axis A.

[30] axle 12 is members of the wiping mechanism of window glass of motor vehicle (not shown), is used in the top that 12s is connected in a wiper brush 14 (shown in Fig. 4 A, 4B), is connected in a crank 16 of the kinematic link system of a motion at its lower end 12i.

[31] plate 10 has a back plate 18, is used for the body structural member that it is fixed in vehicle, it have one with axle 12 and the coaxial cylindricality axle sleeve 20 of axis A.

[32] axle sleeve 20 can be implemented the pivot guiding of axle 12.For this reason, the cylindricality outer wall 12e complementation of its cylindrical inner wall 20i and axle 12.

[33] last, axle sleeve 20 has and is used to make axle 12 to carry out the members 22 of axial motion locking down.

[34] in addition, when wiping mechanism suffer fierce collision, its normal component (shown in arrow F among the figure) greater than one determine threshold value the time, the locking piece 22 of axle 12 can make axle 12 move axially with respect to axle sleeve 20 down.

[35] according to the present invention, locking piece 22 has a bump 24, and it is connected with axle 12, is received in the complementary seat chamber 26 of axle sleeve 20.

[36] for axle 12 is pivoted with respect to axle sleeve 20, both have rotational symmetry around vertical axis A bump 24 and seat chamber 26, and according to a preferred implementation, bump 24 and seat chamber 26 are spherical in shape.

[37] bump 24 is arranged between the bottom 12i and upper end 12s of axle 12 by axle 12 supportings.

This means that [38] a seat chamber 26 is passed by axle 12, therefore, end and bottom are openings thereon for it.

[39] according to the preferred implementation in seat chamber 26, the upper shed in seat chamber 26 and axle 12 complementations, promptly its diameter equals the diameter of axle 12, the under shed in seat chamber 26 is designed to, when wiping mechanism is in normal condition of service, carry out the axial locking of axle 12, so that when collision, break away from bump 24.

[40] for this reason, shown in Fig. 2 A, the diameter of under shed is less than the maximum gauge of bump 24, so that carry out the axial locking of bump.In addition, the diameter of under shed is greater than the diameter of axle 12.

[41] axial motion for axle 12 is carried out down with respect to axle sleeve 20, according to another embodiment of the present invention, bump 24 or seat chamber 26 are suitable for carrying out elastic deformation when collision.

[42] for this reason, make with the material of elastically deformable respectively in bump 24 or seat chamber 26, its elastic performance is specified to its in when collision distortion, and the diameter of the under shed in seat chamber 26 is according to the type of elastomeric material, and is determined according to the threshold value of the normal component of collision.

[43] according to a preferred embodiment of the invention, be a chamber 26 distortion when collision.

[44] Fig. 1,2A and 2B illustrate one first embodiment of the present invention, and according to this embodiment, make with axle sleeve 20 usefulness identical materials in seat chamber 26.

[45] therefore, axle sleeve 20 usefulness are suitable for molded elastomeric material, especially make with plastic material.

[46] according to another embodiment of the present invention, the seat chamber 26 be arranged in axle sleeve 20 bottom 20i near.

[47] therefore, bump 24 breaks away from seat chamber 26, is equivalent to bump 24 and separates fully with respect to axle sleeve 20.Therefore, bump 24 no longer hinders the axial motion of axle 12 after collision.

[48] Fig. 2 A and 2B illustrate axle 12 and bump 24 respectively before collision and afterwards, with respect to axle sleeve 20 with respect to the relative position in seat chamber 26.

[49] shown in Fig. 2 A, in the time of in bump 24 is in a chamber 26, promptly before collision, the bottom in seat chamber 26 can axially keep bump, thereby stops axle 12 to move axially with respect to axle sleeve 20 down.

[50] when wiping mechanism suffers fiercely to collide, produce the supporting power on the present chambeies 26 of bump 24 thus, its dynamics can cause that a chamber 26, the particularly bottom in seat chamber 26 carry out elastic deformation.

[51] in fact, the complementary spherical form of the bottom in bump 24 and seat chamber 26 is aspectant inclined plane shape, so that any point of the bottom in the present chamber 26 of axially mounting power down on the bump 24 present chambeies 26, produces radial effect power outwardly.

[52] therefore, seat chamber 26 becomes big, makes the diameter of its under shed equal the maximum gauge of bump 24, so that bump 24 passes this opening, separates with axle sleeve 20.

[53] after bump 24 breaks away from seat chamber 26, shown in Fig. 2 B, seat chamber 26 and axle sleeve 20 recovery of elasticitys make the maximum gauge of the diameter of under shed less than bump 24 to its original shape.

[54] use elastomeric material, help making seat chamber 26.

[55] still, because make with axle sleeve 20 usefulness identical materials in seat chamber 26, so this means, plate 10 is also made with identical elastomeric material.

[56] but, plate 10 stands many variable mechanical streess.Therefore, plate 10 usefulness elastomeric materials are made, and mean that plate 10 can be out of shape randomly, and therefore, it is bad with respect to waiting to wipe regional wiping to mean arm.

[57] therefore, according to the another embodiment of the present invention shown in Fig. 4 A and the 4B, axle sleeve 20 usefulness rigid material for example aluminium are made, and an insertion 28 that is flush-mounted in axle sleeve 20 is made in seat chamber 26, and its material with elastically deformable is made.

[58] this insertion is to be a ring 28 cylindricality, coaxial with the axis A of axle 12 generally here.It especially by setting-in, is fixed in the bottom 20i of axle sleeve 20 by known any means.

[59] ring 28 has a chamber 26 and is arranged in wherein cylindricality revolution main body 32, and radial outward is extended the radial loop circle body 34 of the bottom 32i of main body 32.

[60] for admitting ring 28, the bottom 20i of axle sleeve 20 has a cavity 30, and its axis A with axle 12 is coaxial, and downwardly facing opening.

[61] cavity 30 has a upper curtate 36 and a lower curtate 38, and it admits the ring body 34 of main body 32 and ring 28 respectively.

[62] ring body 34 is received in the lower curtate 38, carries out axial location and fixing so that encircle 28 in cavity 30.For this reason, as non-limiting example, ring body 34 is inlaid in the lower curtate 38.

[63] when bump 24 breaks away from seat chamber 26 just in case bump, 26 distortion of seat chamber promptly encircle 28 main body 32 distortion.

[64] this distortion of main body 32 mainly is to increase its external diameter.Therefore, for making main body 32 distortion, some size of upper curtate 36 especially its internal diameter greater than some size of main body 32.

[65] preferred implementation of the cavity 30 shown in reference to the accompanying drawings, upper curtate 36 is truncated cone shape, at the diameter of its bottom greater than the diameter of end thereon.

[66] in addition, the diameter of end place upper curtate equals to encircle the external diameter of 28 main body 32 generally thereon, carries out any radial motion in order to avoid encircle 28 in cavity 30.

[67] according to the up axial motion of bump 24 with respect to seat chamber 26, bump 24 is inserted in the chamber 26 by the elasticity setting-in.

[68] under shed for ease of seat chamber 26 carries out elastic deformation, seat chamber 26 is extended axially down by a conical ring part 40 that forms with the coaxial inclined-plane of vertical axis A, during motion in being inserted into a chamber 26, bump 24 is bearing on the described conical ring part 40.

[69] as shown in the figure, when making with axle sleeve 20 usefulness identical materials, shown in Fig. 1,2A and 2B, and when a chamber 26 is arranged in the setting-in ring 28, shown in Fig. 4 A and 4B, use the conical ring part 40 in this extending seat chamber 26 when seat chamber 26.

[70] Fig. 3 A to 3C illustrates the different embodiments of bump 24, and it can be used for combining with arbitrary embodiment in aforementioned seat chamber 26.

[71] according to first embodiment shown in Fig. 3 A, bump 24 is made with axle 12 usefulness identical materials by machinework or any other known embodiment.

[72] can obtain the erecting device of its axle 12 relatively simple for structure like this, when making with axle sleeve 20 usefulness identical materials, especially true when seat chamber 26.

[73] according to another embodiment shown in Fig. 3 B, bump 24 is the bottom 12i of outrigger shaft 12 parts until a termination 42 of crank 16.

[74] this termination 42 has hole 44 on here, and it is towards upper shed, admits the complementary knurled portion 46 of the bottom 12i of axle 12, and termination 42 has a knurled portion 48 at its bottom 42i, and it is received in the complimentary aperture 50 of an end 16a of crank 16.

[75]

knurled portion

46,48 and

complimentary aperture

44,50 can make termination 42 transmit the drive torque of the axle 12 that centers on axis A pivot that is produced by crank 16.

[76] Fig. 3 C illustrates the 3rd embodiment of bump 24, and described bump 24 is parts of a cylindricality sleeve pipe 52, and described cylindricality sleeve pipe 52 is passed by the knurled portion 46 of outrigger shaft 12 down.

[77] here, the bottom of knurled portion 46 directly is received in the complimentary aperture 50 of crank 16, so that sleeve pipe 52 activation force of transmitter shaft 12 not, therefore, it can be made of the single-revolution spare around the vertical axis A of axle 12.

[78] last, according to another embodiment (not shown) of bump 24, it is made of an annular element or ring, is inlaid on the cylindricality outer wall 12e of bottom 12i of axle 12.

[79] for this reason, bump is received in the complementary annular neck portion on axle 12 the cylindricality outer wall 12e.

[80] according to a preferred implementation of this ring, its cross section is rounded, so that the part with respect to the cylindricality outer wall 12e projection of axle 12 of ring has the shape of projection generally.

[81] in addition, ring use than the material of tool rigidity for example ferro-alloy make so that the effective deformation when collision of seat chamber 26.

[82] Fig. 3 A illustrates another embodiment of the present invention, during the described plate 10 of operation, can stop bump 24 to break away from seat chambeies 26 before on the body structural member that is installed on vehicle at plate 10.

[83] according to this embodiment, the cylindricality outer wall 20e of the bottom 20i of axle sleeve 20 has an annular ring 54.

[84] the lower opening axial location in the present chamber 26 of this annular ring is on axle sleeve 20, and it is made with rigid material.

[85] therefore, it prevents the bottom radial deformation of axle sleeve 20, so that bump passes through.

[86] annular ring 54 is positioned on the axle sleeve 20 by an annular strengthening rib 66, and described annular strengthening rib 66 extends towards outer radial from the cylindricality outer wall 20e of axle sleeve 20, and is received in the complementary annular neck portion 68 of ring 54.

[87] Fig. 3 A illustrates another embodiment of the present invention, and according to this embodiment, sealing member is one to have the grommet type seals of lip 56 here, arranges the lower opening in present chamber 26.

[88] here, seal ring 56 is received in the space between tapering part 40 and axle 12 the bottom, prevents that any impurity from entering between bump 24 and the seat chamber 26.

[89] when bump 24 broke away from seat chamber 26, axle 12 can move axially down with respect to axle sleeve 20, so that it no longer forms a member of hurting sb.'s feelings.

[90] still, the upper end 12s of axle 12 is connected in and scrapes wiping arm 14, and therefore, when axle 12 moved with respect to axle sleeve 20, the arm that is connected with axle 12 was bearing on the upper end of axle sleeve 20, stops any additional movement of axle 12.

[91] shown in Fig. 4 A and 4B, according to a variant embodiment of the erecting device of axle 12, arm 14 removably is connected in the upper end 12s of axle 12.

[92] therefore, when arm 14 was bearing on the upper end of axle sleeve 20, it separated with arm 14, and then, described arm 14 can continue it and move.Therefore, arm 14 no longer is connected in plate 10, thereby separates with vehicle fully, does not reconstruct a member of hurting sb.'s feelings.

[93] here, arm 14 is connected in axle 12 by a coupling link 58, and described coupling link 58 is fixed in the upper end 12s of axle 12 by the complementary conical surface 60 and a black nut 62.

[94] coupling link 58 is connected in arm 14 by complementary cylindrical surface 58a, 14a, and described complementary cylindrical surface 58a, 14a contact with each other, so as before collision, to produce with coupling link 58 with respect to the antipodal friction force of the motion of arm 14.

[95] because coupling link 58 should be delivered to arm 14 with the drive torque that pivots around axis A, therefore, according to one preferred embodiment of the present invention, cylindrical surface 58a, 14a have non-circular radial section, for example have the square-section.

[96] radial dimension of coupling link 58 is greater than the diameter of axle 12.Therefore, at arm 14 after separatings, coupling link 58 axially mountings are on the 20s of the upper end of axle sleeve 20, thereby prevention axle 12 moves to beyond this axial location.

[97] be to make axle 12 amplitudes that move axially that had be enough to make bump 24 can break away from a chamber 26, and for its upper end 12s can fully be covered after collision, the upper end 20s of axle sleeve 20 is extended axially up by a cylindricality ring body 64.

[98] inside radius of cylindricality ring body 64 is greater than the maximum radial dimension of coupling link 58, and the axial length of cylindricality ring body 64 is specified to and makes coupling link 58 thereby make axle 12 have enough axial stroke, so that bump 24 breaks away from seat chamber 26.

[99] last, the ring body is configured as arm 14 near the ring edge of the upper end 64s that extends to the ring body before the collision.

[100] therefore, when axle 12 collision, arm 14 is bearing on the upper limb 64 of ring body 64, and then, axle 12 continues its moving axially down with respect to axle sleeve 20, so that bump 24 breaks away from seat chambeies 26.In addition, coupling link 58 moves in ring body 64, on the upper end 20s that is bearing in axle sleeve 20.

Claims

1. guiding and erecting device pivot, it is used for centering on the axle drive shaft (12) that an axis (A) vertical generally with respect to a body structural member of self-propelled vehicle pivots and lead and a wiping mechanism is installed, wherein, one upper end (12s) of described axle drive shaft (12) is fixed in and is scraped wiping arm (14), and a crank (16) of a kinematic link system is fixed in the bottom (12i) of described axle drive shaft (12), the pivot guiding of described type has a guide plate (10) with erecting device, described guide plate (10) is for fixing to body structural member, and described pivot guiding has a cylindricality axle sleeve (20) with erecting device, described axle (12) is pivoted in this cylindricality axle sleeve (20) and is led

It is characterized in that described axle (12) has a bump (24), this bump (24) is received in the complementary seat chamber (26) of described axle sleeve (20), is used for implementing the perpendicular movement of the described axle of locking (12) with respect to described axle sleeve (20),

And, when described wiping mechanism suffers when collision---the normal component (F) of this collision down and this normal component value greater than a threshold value of determining, the elastic deformation that described bump (24) is suitable for by described bump (24) breaks away from described seat chamber (26), and/or breaks away from described chamber (26) by described axle (12) with respect to described axle sleeve (20) moving axially down.

2. device according to claim 1 is characterized in that, described seat chamber (26) realizes that by the material that comes from described axle sleeve (20) described axle sleeve (20) forms by the material of an elastically deformable is molded.

3. device according to claim 1, it is characterized in that, described seat chamber (26) be implemented on one with described (12) coaxial ring that is cylindricality generally (28) in, described ring (28) is made with the material of elastically deformable, and is received in the cavity (30) of described axle sleeve (20).

4. device according to claim 3, it is characterized in that, described cavity (30) has a upper curtate (36), this upper curtate (36) is admitted a main body (32) of described ring (30), and the interior radially size of this upper curtate (36) is greater than the outer radial size of the main body (32) of described ring (28), so that in the time of outside described bump (24) is deviate from described seat chamber (26), increase the external diameter of the main body (32) of described ring (28).

5. device according to claim 4 is characterized in that, the upper curtate (36) of described cavity (30) is truncated cone shape generally.

6. each described device in requiring according to aforesaid right is characterized in that described bump (24) is by making from the material of described axle (12).

7. according to each described device in the claim 1 to 5, it is characterized in that described bump (24) is one to be installed in the part of the insertion (42) on the described axle (12).

8. each described device in requiring according to aforesaid right is characterized in that described seat chamber (26) is arranged in the following axial end (20i) of described axle sleeve (20) and locates.

9. each described device in requiring according to aforesaid right is characterized in that described bump (24) and described seat chamber (26) are spherical in shape generally.

10. each described device in requiring according to aforesaid right is characterized in that, described seat chamber (26) is by extending down with the coaxial conical ring part (40) of described axle (12), and this conical ring part (40) internal diameter increases the formation inclined-plane down.

11. according to each described device in the aforesaid right requirement, it is characterized in that, the upper end (12s) of described axle (12) is connected in the described wiping arm (14) of scraping by a coupling link (58), and described coupling link (58) is suitable for separating with described axle (12) or the described wiping arm (14) of scraping when collision.

12. device according to claim 11, it is characterized in that, described axle sleeve (20) extends axially up by a cylindricality ring body (64), the described wiping arm (14) of scraping is suitable for leaning against on the described cylindricality ring body (64) at when collision retaining, separates with the described wiping arm (14) of scraping to cause described coupling link (58).

13. according to each described device in the aforesaid right requirement, it is characterized in that, described device has a grommet type seals (56), and this grommet type seals (56) is located to be arranged between described bump (24) and the described seat chamber (26) in described conical ring part (40).