CN103991431A - Windscreen wiper system lining base thereof - Google Patents
Windscreen wiper system lining base thereof Download PDFInfo
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- CN103991431A CN103991431A CN201310051125.2A CN201310051125A CN103991431A CN 103991431 A CN103991431 A CN 103991431A CN 201310051125 A CN201310051125 A CN 201310051125A CN 103991431 A CN103991431 A CN 103991431A
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- car body
- protection member
- pintle assembly
- liner clamp
- fastener
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- 238000009434 installation Methods 0.000 claims abstract description 43
- 238000006073 displacement reaction Methods 0.000 claims description 50
- 239000000463 material Substances 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention provides a pivot assembly for a vehicle windscreen wiper system. The pivot assembly comprises a pivot, a lining base, a fastener and a protection device, wherein the lining base comprises a body portion and an installation portion, the body portion is provided with an axle hole where the pivot is installed, the installation portion is used for fixing the pivot assembly to a vehicle body, the installation portion comprises an inner circumference portion, an outer circumference portion and a decoupling structure, an installation hole is defined in the inner circumference portion, the inner circumference portion is connected with the outer circumference portion through the decoupling structure, the fastener penetrates through the installation hole to fix the pivot assembly to the vehicle body, the central axis parallel to the pivot is defined through the fastener, the protection device at least comprises a protection component, the outer circumference portion comprises a stop portion, and the protection component and the stop portion are arranged in a spaced mode. When the stop portion deforms and displaces in the direction of the pivot until making contact with the protection component, the protection component can stop or greatly reduce further deformation of the stop portion in the direction of the pivot.
Description
Technical field
The wiper system that the present invention relates to a kind of liner clamp for vehicle windscreen wiper system and comprise this liner clamp.
Background technology
Fig. 1 a shows the wiper system 1 for vehicle of a type, comprising: the driven unit 10 in the middle of being positioned at, and driven unit 10 mainly comprises wiper motor 12 and is secured on car body; Two wiper arm assembly (not shown), be respectively near the passenger side wiper arm assembly of passenger side with near the driving side wiper arm assembly of driving side, each wiper arm assembly comprises wiper arm and for directly vehicle windscreen being carried out the rain shaving blade of cleaning action; Support the passenger side pintle assembly 20 of described wiper arm assembly and drive side pintle assembly 30; Connecting rod assembly 40, connecting rod assembly 40 comprises that its one end is connected with the output link of driven unit 10 and by the connecting rod 41 of its driving, the wiper arm assembly that the other end of connecting rod 41 was connected to and drove passenger side pintle assembly 20 and supported by fork 43, meanwhile, the other end of connecting rod 41 is connected to and is driven the wiper arm assembly of driving side pintle assembly 30 and supporting by connecting rod 42 and fork 44; And support tubes 11.
Passenger side pintle assembly 20 and driving side pintle assembly 30 have symmetrical structure, and wherein passenger side pintle assembly 20 comprises the pivot 21 of support wiper arm assembly and the liner clamp 22 that pintle assembly is fixed to car body.Liner clamp 22 is made by plastic material conventionally.
Fig. 1 b has illustrated the enlarged drawing of passenger side pintle assembly 20 of wiper system 1 of Fig. 1 a.Pivot shown in figure 21 comprises for supporting one end of wiper arm assembly and for being connected to the contrary end of fork 43.Liner clamp 22 comprises the extension 23 that is plugged in support tubes 11, is formed with the body 25 of the axis hole 28 that pivot 21 is installed, for liner clamp 22 being fixed to the installation portion 26 of car body, and the connecting portion 27 that connects body 25 and installation portion 26.
The mounting hole 29 that fastener (not shown) passes in the installation portion 26 that is formed on liner clamp 22 is fixed to car body by liner clamp 22.Rubber Parts 2, steel lining 3 are installed between fastener and mounting hole 29.
Fig. 1 c shows another kind of liner clamp 22 structures that unpub Chinese patent application 201210248734.2 proposes, its structure that is different from Fig. 1 b is to be formed with inner circle 50, outer part 60 and the decoupling-structure 70 between inner circle 50 and outer part 60 in installation portion 26, and the setting of decoupling-structure 70 can be played the effect of vibration damping and noise decoupling zero.
Decoupling-structure 70 comprises at least one that the roughly radial that is connected between inner circle 50 and outer part 60 distributes, preferred a plurality of ribs 72.In Fig. 1 c, only illustrated a kind of concrete arrangement of the decoupling-structure 70 that formed by rib 72.Rib 72 can be along 50 extensions in the radial direction to outer part 60 from inner circle.Certainly, rib 72 can have any other extension mode, arrangement, shape of cross section, size etc.
In the working process of wiper system 1, rain shaving blade is done reciprocal cleaning action in vehicle windscreen, bears the friction drag that comes from Windshield and the barrier force that is present in foreign material on Windshield.Typically, the in the situation that of gathering a large amount of accumulated snow on Windshield, rain shaving blade and wiper arm are subject to large drag forces, and resistance is delivered to by pivot 21 and the liner clamp 22 of pintle assembly 20 installation portion 26 that is fixed to car body.
The installation portion 26 of liner clamp 22 be subject to towards/away from the direction of car body and/or towards/away from the power of the direction of the body 25 of liner clamp 22 and produce deformation displacement.When deformation displacement surpasses a certain predetermined value, liner clamp 22 can occur to lose efficacy or breakoff phenomenon.
Fig. 2 shows the comparison of the stressed deformation displacement relation with producing of different liner clamp structures in prior art.Wherein, abscissa represents the displacement producing, and ordinate represents the value of the power that liner clamp is subject to.Line V1 is the stressed of liner clamp structure shown in Fig. 1 b and deformation displacement relation curve; Line V2 is the stressed of liner clamp structure shown in Fig. 1 c and deformation displacement relation curve, and its middle rib 72 has square cross section; Line V3 is the stressed of liner clamp structure shown in Fig. 1 c and deformation displacement relation curve, and its middle rib 72 has circular cross section.In figure, region A represents the normal operation region of wiper system, and liner clamp is stressed generally between 0-250N, and the deformation displacement of liner clamp installation portion is in about 2mm.
Curve shown in line V1 is along with the precipitous rising of stressed increase, the deformation displacement increase that is liner clamp generation is very fast, and when power reaches about 250N, displacement increases to rapidly 0.4mm left and right, still increases afterwards very fast, this illustrates this liner clamp structure characteristic of enbrittling, easily fracture.When shown in line V2 and V3, curve starts along with stressed increase deformation displacement increases more slow, yet, we notice that this liner clamp structure reaches after a certain value stressed, about 235N for example, even if the power being subject to no longer increases, the deformation displacement of liner clamp also can increase always, that is to say that this liner clamp structure can face the danger that inefficacy is for example ruptured after stressed continuing for some time.Curve V in figure represents the relation of the force and deformation displacement of another kind of liner clamp, and wherein, rubber buffer part is added to liner clamp to play buffer action, reduces the displacement that liner clamp distortion produces as far as possible.
The class of a curve of Fig. 3 a is similar to the line V3 in Fig. 2.Obviously, this liner clamp structure has and is continuing to bear the danger of losing efficacy after a certain certain hour more energetically.
The liner clamp structure representing with Fig. 3 a is compared, and Fig. 3 b has illustrated the preferably force and deformation displacement relation characteristic curve that a kind of improved liner clamp structure has.Wherein, line L1 represents wiper system, is specially liner clamp, and the power being subject to reaches maxim substantially, and L2 represents that liner clamp lost efficacy, the region representation safety zone between L1 and L2, and for there is the region of fracture in the region between L2 and L3.
Ideally; liner clamp is after the resistance being subject to arrives maxim; the displacement of distortion can not increase until destroy always; but after increasing to a certain degree, displacement no longer or very lentamente increases; thereby liner clamp can not arrived cause to destroy or the degree of failure fracture, as shown in Figure 3 b.
Curve shown in Fig. 4 a is the improvement on the curve shown in Fig. 3 b.Particularly, in Fig. 3 b, curve comprises the first paragraph S1 of smooth curved form and the second segment S2 of straight line, concrete sharp-pointed point of transition between first paragraph S1 and second segment S2.And in Fig. 4 a, between first paragraph S1 and second segment S2, by level and smooth segmental arc S3, connected.That is to say, in the deformation process of liner clamp, acute variation, safety and reliability can not occur.
Be desirable to provide and a kind ofly can obtain the improved liner clamp that is subject to the strength and the displacement relation curve in Fig. 4 a and 4b.
Summary of the invention
The object of this invention is to provide a kind of improved liner clamp structure, it has has optimized force and deformation displacement relation curve.The wiper systematic part that comprises this liner clamp structure still less, structure is simpler and cost is lower.
Liner clamp according to the present invention comprises for liner clamp being fixed to the installation portion of car body; by stopper section being set on the installation portion of described liner clamp and the guard member matching with stopper section being set when liner clamp is installed to car body, make liner clamp there is force and deformation displacement relation as shown in Figure 3 b.Line L1 represents that liner clamp is subject to approximate maximal force; about 150N for example; the deformation displacement producing is about 1.5mm, and afterwards, the stress value of liner clamp slightly also can increase but deformation displacement increases obviously; at the about 1.8mm of deformation displacement place; be line L2 place, the stopper section of liner clamp combines with guard member, and guard member stops that the deformation displacement of stopper section further obviously increases; make the increase of the deformation displacement of liner clamp installation portion become very slow, particularly increase to approximate failure limit (shown in line L3).Like this, liner clamp is prevented from the unlimited increase failure fracture because of deformation displacement.The situation not losing efficacy for safety in region between the online L1 of liner clamp and line L2, the liner clamp in the region between line L2 and line L3 has the danger of failure fracture.
From the stressed and deformation displacement relation curve of the liner clamp structure shown in Fig. 3 b, at L2, have obvious point of transition, this is disadvantageous.Fig. 4 a is illustrated in the curve of the enterprising one-step optimization in basis of Fig. 3 b.Wherein the point of transition in Fig. 3 b is by the excessively section replacement of level and smooth arc, and Fig. 4 b shows the excessively enlarged drawing of section of arc.Select plastic material, for example plastics, make above-mentioned guard member, can make liner clamp obtain the relation curve of the further optimization shown in Fig. 4 a and 4b.
According to a first aspect of the invention, provide a kind of pintle assembly for vehicle windscreen wiper system, described pintle assembly comprises pivot, for supporting the wiper arm assembly of wiper system; Liner clamp, it comprises body, it is formed the axis hole that described pivot is installed, and installation portion, for pintle assembly is fixed to car body, described installation portion comprises inner circle, outer part and the decoupling-structure that connects inner circle and outer part, and described inner circle limits mounting hole; Fastener, described fastener is fixed to car body through described mounting hole by described pintle assembly, and described fastener limits the central axis that is parallel to described pivot; And fender guard, described fender guard at least comprises protection member; Wherein, described outer part is with the stopper section of extending along described central axial direction from described outer part; described protection member and described stopper section be spaced apart the first default distance in the plane perpendicular to described central axis; when described stopper section, in described plane, in pivot direction, deformation displacement is when contact with described protection member, and described protection member stops the further distortion that described stopper section makes progress the party or makes described further distortion can not cause described liner clamp inefficacy.
According to a preferred embodiment, described protection member is configured to protection member, and described stopper section be configured to the upper end face away from car body from described outer part upwardly extending in the side away from car body along described central axis stopper section.
According to a preferred embodiment, the integral part that described upper protection member is described fastener.
According to a preferred embodiment, described upper protection member comprise base portion and from the periphery of described base portion along described central axial direction away from car body extend and/or along central axial direction towards car body the flange that extends.
According to a preferred embodiment, described upper protection member is configured to be installed to the member separately of first on fastener in concentric mode.
According to a preferred embodiment; described fastener comprise there is the first paragraph of maximum gauge, with the mounting hole of the inner circle of described liner clamp be formed at the second segment that the through hole in described upper protection member matches and there is the 3rd section of minimum diameter; described the 3rd section is suitable for being installed in the respective aperture of car body; and; in central axial direction, described upper protection member by clamping between the first paragraph of described fastener and the inner circle of liner clamp.
According to a preferred embodiment, also comprise the clamping part being attached on described fastener, in central axial direction, described upper protection member by clamping between described clamping part and the inner circle of described liner clamp.
According to a preferred embodiment, described clamping part is C-clamp.
According to a preferred embodiment, described upper protection member comprises extension, described extension from the described upper end face of the outer part of described liner clamp along described central axis at the default second distance of direction upper offset away from car body.
According to a preferred embodiment, extend along described central axial direction from one or more discrete locations of the upper end face away from car body of described outer part described upper stopper section.
According to a preferred embodiment, described fender guard also comprises lower protection member, and described liner clamp also comprises from the rear surface towards car body of described outer part along described central axial direction stopper section towards car body extension.
According to a preferred embodiment, described protection member is configured to lower protection member, and described stopper section is configured to from the rear surface towards car body of described outer part along described central axial direction stopper section towards car body extension.
According to a preferred embodiment; the integral part that described lower protection member is described fastener; the upper end face away from car body of described lower protection member is against the rear surface towards car body of the inner circle of described liner clamp, and the rear surface towards car body of described lower protection member is directly or by being formed at shoulder on fastener against car body.
According to a preferred embodiment, described lower protection member comprises base portion and the flange that extends and/or extend towards car body along described central axial direction away from car body along described central axial direction from the periphery of described base portion.
According to a preferred embodiment, described lower protection member is configured to be installed to separately member of second on fastener in concentric mode, described lower protection member by clamping between described fastener and car body.
According to a preferred embodiment; the rear surface towards car body of the outer part of described liner clamp is apart from the 3rd predetermined distance of car body; or described lower protection member is provided with extension, described extension from the described rear surface of the outer part of described liner clamp along described central axis in the 3rd distance described in the direction upper offset towards car body.
According to a preferred embodiment, extend along described central axial direction from one or more discrete locations of the rear surface towards car body of described outer part described lower stopper section.
According to a preferred embodiment, described fender guard by elastic deformable material for example plastics make.
According to a further aspect in the invention, also provide a kind of vehicle windscreen wiper system, it comprises above-mentioned pintle assembly, and described wiper system also comprises for the driven unit of power is provided; Be connected to the connecting rod assembly between driven unit and described pintle assembly; And the wiper arm assembly of being made by the pivot of described pintle assembly, it comprises for carry out the rain shaving blade of reciprocally swinging in vehicle windscreen.
According to improved liner clamp structure of the present invention, have and optimized force and deformation displacement relation curve, and with in prior art, compare, described liner clamp has the integrated design of identical function, the wiper systematic part quantity that comprises this liner clamp is reduced, reduced thus wiper system cost.
Wiper system according to the present invention is equipped with guard member on pintle assembly, and it matches with the stopper section being formed on the liner clamp of pintle assembly, and protection liner clamp can not lose efficacy or rupture because stress deformation displacement is excessive.According to actual loading situation, liner clamp can only include stopper section and upper protection member or only include lower stopper section and lower protection member, or comprises both simultaneously.Protection member can be used as independent member provides the integral part that also can be used as fastener to provide.One of upper protection member and lower protection member or both can be with the extensions of outer part excessive deformation in central axial direction that stops the installation portion of liner clamp.Certainly, the extension of lower protection member can be replaced by car body.
Accompanying drawing explanation
In the application's who describes below in conjunction with accompanying drawing preferred embodiment, can understand better the application's above-mentioned and further feature and advantage, wherein:
Fig. 1 a is a kind of schematic perspective view of wiper system;
Fig. 1 b is the partial enlarged drawing of pintle assembly of the wiper system of Fig. 1 a;
Fig. 1 c is the schematic diagram of the another kind of liner clamp for pintle assembly;
Fig. 2 is the Relationship Comparison figure of force and deformation displacement of the different liner clamp structures of prior art;
Fig. 3 a be prior art a kind of liner clamp structure force and deformation displacement be related to schematic diagram;
Fig. 3 b is the schematic diagram that is related to of the liner clamp structure according to the present invention force and deformation displacement that can realize;
Fig. 4 a is the schematic diagram obtaining at the enterprising one-step optimization in the basis that is related to schematic diagram shown in Fig. 3 b;
Fig. 4 b is the partial enlarged drawing of Fig. 4 a;
Fig. 5 a-5c is according to the schematic diagram of a part for the pintle assembly of first embodiment of the invention, and wherein Fig. 5 a is exploded perspective view, and Fig. 5 b and 5c illustrate respectively liner clamp in normal condition and deformation state;
Fig. 6 a-6c is according to the schematic diagram of a part for the pintle assembly of second embodiment of the invention, and wherein Fig. 6 a is exploded perspective view, and Fig. 6 b and 6c illustrate respectively liner clamp in normal condition and deformation state;
Fig. 7 a and 7b show according to the schematic diagram of a part for the pintle assembly of third embodiment of the invention, and wherein liner clamp is respectively in normal condition and deformation state;
Fig. 8 a and 8b show according to the schematic diagram of a part for the pintle assembly of fourth embodiment of the invention, and wherein liner clamp is respectively in normal condition and deformation state;
Fig. 9 a and 9b show according to the schematic diagram of a part for the pintle assembly of fifth embodiment of the invention, and wherein liner clamp is respectively in normal condition and deformation state;
Figure 10 shows the assembly drowing in normal condition according to the liner clamp of the pintle assembly of sixth embodiment of the invention;
Figure 11 shows the assembly drowing in normal condition according to the liner clamp of the pintle assembly of seventh embodiment of the invention;
Figure 12 shows the assembly drowing in normal condition according to the liner clamp of the pintle assembly of eighth embodiment of the invention;
Figure 13 shows the assembly drowing in normal condition according to the liner clamp of the pintle assembly of ninth embodiment of the invention.
The specific embodiment
Specifically describe below with reference to the accompanying drawings can obtain the force and deformation displacement curve relation shown in Fig. 3 b, 4a or 4b according to the liner clamp structure of the pintle assembly of different embodiments of the invention.In accompanying drawing, the same or similar parts of function or structure represent with identical reference marker.
First with reference to figure 5a-5c, show according to a part for the pintle assembly 100 of first embodiment of the invention.
Pintle assembly 100 comprises liner clamp 105, and liner clamp 105 roughly comprises extension 110, body 130, installation portion 120 and the connecting portion 140 between body 130 and installation portion 120.Extension 110 is suitable for being connected to, and is specially and is plugged into, and support tubes is for example in the support tubes 11 of Fig. 1 a.Body 130 comprises the support portion 132 that is wherein formed with axis hole 134, and axis hole 134 is configured to install for example pivot 21 of Fig. 1 a of pivot for supporting wiper arm assembly.Installation portion 120 is for being fixed to car body by pintle assembly 100, and it is connected to body 120 by connecting portion 140.
The installation portion 120 of liner clamp 105 roughly comprise inner circle 122, outer part 124 and be connected to inner circle 122 and outer part 124 between decoupling-structure 126.Decoupling-structure 126 is included between inner circle 122 and outer part 124 a plurality of ribs 127 that extend and connect the two.
Inner circle 122 comprises cylindrical bore 129, and the central axis of endoporus 129 is parallel to the central axis that axis hole 134 is pivot 21., along central axis, away from the direction of car body, be defined as the direction of " making progress " herein, on the contrary, towards the direction of car body, be defined as the direction of " downwards ".
In different embodiment, the splice parameters such as the bearing of trend of rib 127, arrangement, number, shape of cross section, size can be different.In Fig. 5 a, only illustrate a kind of concrete structure wherein.
Particularly, rib can be straight, but preferably crooked, this can learn from the comparison schematic diagram of Fig. 2.For example, rib is fluctuating along axis direction when inner circle straight line or curve extend to outer part, for example, along roughly sine curve or parabola or any other curve.The shape of cross section of rib can be different, for example, can adopt rectangle, square, circular, oval, polygon or their combined shaped.The number of rib and cross sectional dimensions can arrange according to actual needs.Preferably, along inner circle, 122 circumferencial direction is uniformly distributed rib.Rib can along from inner circle 122 to 124 one-tenth radiated entends of outer part, or can along with from inner circle, 122 to the radial direction of outer part 124, extend at angle, for example can extend twist.In a word, those skilled in the art it is contemplated that any direction extends in inner circle 122 to the rib 172 between outer part 124 by any way.
Preferably, the outer part 124 of the installation portion 120 of liner clamp 105 has upper surface 112 nonplanar, that rise and fall and lower surface 114 nonplanar, that rise and fall.Lower surface 114 comprises outstanding spine 116 and recess 118 downwards.Spine 116 and recess 118 are preferably alternately arranged equably along the circumferencial direction of outer part 124, can certainly inhomogeneously arrange.
Advantageously, liner clamp 105 according to the present invention is provided with stopper section 128.Stopper section 128 is integral parts of the installation portion 120 of liner clamp 105.
Stopper section 128 be formed from spine's 116 downward projections of outer part 124 to lower extension.Preferably, stopper section 128 is from each spine 116 to downward-extension.Alternatively, also can extend corresponding one or more stopper section 128 downwards from optional one or more spines 116, or also can extend from optional one or more recesses 118 corresponding one or more stopper section downwards.
According to the present invention, the pintle assembly 100 of wiper system comprises the guard member 150 that the stopper section 128 with liner clamp 105 is used in combination.
In this first embodiment, guard member 150 is made by elastic deformable material, plastics for example, and there is general toroidal shape.Optionally, guard member also can be made and be had any other shape that can realize identical function by any other suitable material except plastics.
Particularly, guard member 150 comprises the base portion 151 of dish type and is approximately perpendicular to its upwardly extending flange part 152 from the periphery of base portion 151.Base portion 151 is formed with centre hole 155, and fastener 160 is fixed to car body through centre hole 155 by pintle assembly 100.
As shown in Figure 5 b, when the pintle assembly of wiper system 100 is fixed to car body, fastener 160 is through the endoporus 129 of installation portion 120 and the hole 155 of guard member 150 of liner clamp 105, enters in the respective aperture being arranged on car body and fastened.So far, guard member 150 is fixed between liner clamp 105 and car body.
The base portion 151 of guard member 150 comprises primary surface 153 and contrary surface 156, the lower surface of the inner circle 122 of primary surface 153 butt liner clamps 105, the surface 156 contact car body surfaces of the base portion 151 of guard member 150.
The inside face 137 of the outside face 154 of the flange 152 of guard member 150 and the outer part 124 of installation portion 120 apart from p, makes the stopper section 128 of its outer part 124 when liner clamp 105 is stressed can face towards pivot 21 outside face 154 distortion of guard member 150 at a distance of one.
Fig. 5 c shows when liner clamp 105 is stressed and makes the outer part 124 of its installation portion 120 when pivot is out of shape; the guard member 150 of the stopper section 128 butt pintle assemblies 100 of outer part 124; guard member 150 stops that the stopper section 128 of liner clamp 105 is further towards pivot 21 distortion; and then stop that its deformation displacement further increases, avoided the installation portion 120 of liner clamp that failure fracture occurs because deformation displacement is excessive.Here and hereinafter, term " diametral load " or " radial deformation displacement " represent from installation portion 120 or from fastener 160 power or the deformation displacement towards pivot 21 directions.
Fastener 160 is fastener common in this area, such as screw, bolt etc.
Fig. 6 a-6c shows according to a part for the pintle assembly 100 of second embodiment of the invention.Wherein same or similar parts have identical reference marker.This second embodiment and the first embodiment distinguish and are, the stopper section 138 of liner clamp 105 extends upward from the upper surface 112 of the outer part 124 of the installation portion 120 of liner clamp 105.As the lower surface 114 of liner clamp 105 in the first embodiment, upper surface 112 comprises base portion and recess, stopper section 138 projection that can make progress from the spine of upper surface 112.Preferably, stopper section 138 can extend upward from each spine, also corresponding one or more stopper section 138 can be extended upward from optional one or more spines, or also corresponding one or more stopper section can be extended upward from optional one or more recesses.
Guard member 150 in the second embodiment is identical with the first embodiment, but has contrary installation direction.
According to the present embodiment, when pintle assembly 100 is fixed to car body, guard member 150 by clamping between fastener 160 and the upper surface of inner circle 122.As shown in Figure 6 b, the primary surface 153 of the base portion 151 of guard member 150 is against the upper surface of the inner circle 122 of liner clamp 105, the surface 156 butt fasteners 160 of the base portion 151 of guard member 150.
Equally; between the outside face 154 of flange 152 of guard member 150 and the inside face 137 of the outer part 124 of installation portion 120, exist apart from p1, the stopper section 138 of its outer part 124 when liner clamp 105 is stressed can be out of shape towards the outside face 154 of guard member 150.At stopper section 138 stress deformations of the outer part 124 of liner clamp 105, during to the outside face 154 of contact protection part 150, protected 150 stops further radial deformation, avoids liner clamp 105 to answer the excessive and failure fracture of radial deformation displacement, as shown in Fig. 6 c.
Fig. 7 a-7b shows a part for the pintle assembly 100 of a third embodiment in accordance with the invention.The liner clamp 105 of pintle assembly 100 comprises the structure identical with stopper section 138 in the second embodiment, from the upper surface 112 of the outer part 124 of the installation portion 120 of liner clamp 105, extends upward.
It according to the guard member of the present embodiment, is the integral part of fastener 160.Particularly, fastener 160 comprises the top 162 that the fastener 160 phase diameter groups with the first and second embodiment increase.Top 162 has outside face 164
Between the inside face 137 of the outside face 164 at the top 162 of fastener 160 and the outer part 124 of installation portion 120, exist apart from p1, the stopper section 138 of its outer part 124 when liner clamp 105 is stressed can be out of shape towards the outside face 164 of fastener 160.
The identical effect of guard member 150 in the first and second embodiment is played at the top 162 that the diameter of fastener 160 increases.The stopper section 138 that stops outer part 124 when liner clamp 105 is stressed is rear further towards pivot radial deformation at contact protection part 150, in order to avoid excessive liner clamp 105 failure fractures that cause of deformation displacement.
With reference to figure 8a-8b, show according to a part for the pintle assembly 100 of the 4th embodiment.As according to the variation of the 3rd embodiment, as the top 162 of the fastener 160 of guard member, be formed flange 163, flange 163 162 upwards vertically extends from top.
Fig. 9 a-9b show as the 3rd embodiment second variation according to a part for the pintle assembly 100 of the 5th embodiment.Wherein the top 162 as the fastener 160 of guard member has been formed flange 165, and flange 165 162 extends vertically down from top, contrary with flange 163.Those skilled in the art it is also contemplated that fastener 160 comprises flange 163 and 165 simultaneously, as guard member.
Below with reference to Figure 10, pintle assembly 100 is according to a sixth embodiment of the invention described.The liner clamp 105 of pintle assembly 100 is fastened to car body 5 by fastener 160.Liner clamp 105, fastener 160 and guard member 150 be identical with the second embodiment respectively.
As shown in the figure; the outside face 154 of guard member 150 is p1 apart from the distance between the inside face 137 of stopper section 128; the surface 153 of the base portion 151 of guard member 150 is against the lower surface of the inner circle 122 of the installation portion 120 of liner clamp 105, and the opposed surface 156 of base portion 151 is against the respective surfaces 55 of car body 5.Guard member 150 has prevented that the installation portion 120 of liner clamp 105 from further increasing or making it increase deficiency so that liner clamp 105 failure fractures after radially inner deformation displacement surpasses p1.
Further, the axial deformation displacement that also comprises according to the pintle assembly of the present embodiment the installation portion 120 that limits liner clamp 105 is to prevent that liner clamp 105 is because of the excessive failure fracture of axial deformation displacement.
Particularly, when the pintle assembly 100 of wiper system is fixedly on car body, the lower surface 144 of the stopper section 128 of the outer part 124 of the installation portion 120 of liner clamp 105 is apart from having a preset distance p2 between car body surface 55.When the shift value that is subject to the power towards car body direction to cause outer part 124 to produce towards car body distortion when liner clamp 105 arrives p2, car body surface 55 stops further distortion or keep deformation displacement value in safe range of outer part 124, thereby has avoided the axial deformation displacement towards car body direction of liner clamp 105 excessive and cause the situation of failure fracture.
Figure 11 shows according to the cutaway view of a part for the pintle assembly 100 of seventh embodiment of the invention.
The liner clamp 105 of pintle assembly 100 comprises stopper section 128 from from the lower surface 114 of the outer part 124 of installation portion 120 to downward-extension and from the upwardly extending stopper section 138 of upper surface 112 of outer part 124.
Guard member 150 comprises base portion 151, the flange 152 extending vertically down from base portion 151 and the extension 158 to extend radially outwardly apart from the mode of p3 to upper offset one from base portion 151.The outside face 154 of guard member 150 is p1 apart from the distance between the inside face 137 of stopper section 138; the lower surface of extension 158 apart from the upper surface of the stopper section 138 of the outer part 124 of liner clamp 105 apart from p3, the lower surface of the stopper section 128 of the outer part 124 of liner clamp 105 apart from car body surface 55 apart from p2.
So in the direction towards pivot, the deformation displacement of the stopper section 138 that the outside face 154 of guard member 150 prevents liner clamp 105 in pivot direction mistake after surpassing p1 is increasing greatly, this side up to liner clamp 105 its protective effects.In the downward direction towards car body, the deformation displacement of the stopper section 128 that car body surface 55 prevents liner clamp 105 in car body direction mistake after surpassing p2 is increasing greatly, this side up to liner clamp 105 its protective effects.In the upward direction away from car body, the stopper section 138 that the lower surface of the extension 158 of guard member 150 prevents liner clamp 105 mistake after the deformation displacement away from car body direction is surpassing p3 is increasing greatly, this side up to liner clamp 105 its protective effects.
Figure 12 shows according to the cutaway view of a part for the pintle assembly of eighth embodiment of the invention.For clarity sake, only by dotted rectangle, show the inner circle 122 of installation portion of the liner clamp of pintle assembly in Figure 12, the structure of the other parts of liner clamp can be identical with the counter structure in above-mentioned arbitrary embodiment.
According to the pintle assembly of the present embodiment, comprising two guard members, is respectively upper guard member 150 and lower guard member 250.Fastener 160 comprises and is suitable for first paragraph 161 that the diameter that matches with the endoporus 129 of inner circle 122 is larger, shoulder 162 and for being installed to the less second segment 163 of diameter of car body.In first paragraph 161, be formed with annular groove 164.
When pintle assembly is installed to car body; first lower guard member 250 is installed to position as shown in figure 12 on fastener 160; then make the lower end of fastener 160 endoporus 129 of 122 from inner circle upwards install; until the lower surface of inner circle 122 is against the upper surface of lower guard member 250, thus lower guard member 250 is clamping between the inner circle 122 of liner clamp and the shoulder 162 of fastener 160.Then, install guard member 150 make its lower surface against inner circle 122 upper surface, by the interior installation clamping element of annular groove 164, for example C type folder 170, and upper guard member 150 is positioned to the axial location on fastener 160.So far, upper and lower guard member, clamping element, fastener are all installed to and on liner clamp, form sub-component.Finally the sub-component of formation is fixed to car body.
Can imagine; the equal distance p1 of outer peripheral face 254 of the inside face of the outer peripheral face 154 of the inside face of the upper stopper section of the outer part of unshowned liner clamp and upper guard member 150, lower stopper section and lower guard member 250, with the liner clamp of protection in the radial direction towards pivot.Or further, the lower surface of the lower stopper section of the outer part of liner clamp is apart from car body respective surfaces apart from p2, to protect liner clamp on the axial direction towards car body.
Figure 13 shows the variation of this 8th embodiment, and guard member is not wherein provided, and lower guard member 250 is formed the integral part of fastener 160, and same guard member 250 at present is also formed with along peripheral upwardly extending flange 252.Its mode of action and previous embodiment are similar.
In addition, location along central axial direction on fastener 160, inner circle 122 is provided by clamping part 170, and clamping part 170 is directly fixed in the annular groove 164 being formed on fastener 160.Alternatively, also can use guard member 150 and replace clamping part 170, play the effect of the outer part excessive deformation in the direction of pivot that prevents liner clamp.Certainly, can also in upper guard member, provide and prevent that the outer part of liner clamp is along the extension of central axis excessive deformation in the direction away from car body.
Wiper system according to the present invention is equipped with guard member on pintle assembly, and it matches with the stopper section being formed on the liner clamp of pintle assembly, and protection liner clamp can not lose efficacy or rupture because stress deformation displacement is excessive.
About a plurality of embodiment of the present invention, be described above, but the present invention is not intended to be limited to the embodiment of description above and accompanying drawing signal.The feature of describing about an embodiment is equally applicable to other embodiments of the invention, and the feature of different embodiment can mutually combine and form new embodiment.In the situation that do not depart from essence and the scope being limited by claim below, those skilled in the art can carry out various modifications and variation to above-described embodiment.
Claims (19)
1. for a pintle assembly for vehicle windscreen wiper system, described pintle assembly comprises:
Pivot, for supporting the wiper arm assembly of wiper system;
Liner clamp, it comprises body, it is formed the axis hole that described pivot is installed, and installation portion, for pintle assembly is fixed to car body, described installation portion comprises inner circle, outer part and the decoupling-structure that connects inner circle and outer part, and described inner circle limits mounting hole;
Fastener, described fastener is fixed to car body through described mounting hole by described pintle assembly, and described fastener limits the central axis that is parallel to described pivot; And
Fender guard, described fender guard at least comprises protection member;
Wherein, described outer part is with the stopper section of extending along described central axial direction from described outer part; described protection member and described stopper section be spaced apart the first default distance in the plane perpendicular to described central axis; when described stopper section, in described plane, in pivot direction, deformation displacement is when contact with described protection member, and described protection member stops the further distortion that described stopper section makes progress the party or makes described further distortion can not cause described liner clamp inefficacy.
2. pintle assembly according to claim 1; wherein; described protection member is configured to protection member, and described stopper section be configured to the upper end face away from car body from described outer part upwardly extending in the side away from car body along described central axis stopper section.
3. pintle assembly according to claim 2, wherein, the integral part that described upper protection member is described fastener.
4. pintle assembly according to claim 3, wherein, described upper protection member comprise base portion and from the periphery of described base portion along described central axial direction away from car body extend and/or along central axial direction towards car body the flange that extends.
5. pintle assembly according to claim 2, wherein, described upper protection member is configured to be installed to the member separately of first on fastener in concentric mode.
6. pintle assembly according to claim 5; wherein; described fastener comprise there is the first paragraph of maximum gauge, with the mounting hole of the inner circle of described liner clamp be formed at the second segment that the through hole in described upper protection member matches and there is the 3rd section of minimum diameter; described the 3rd section is suitable for being installed in the respective aperture of car body; and; in central axial direction, described upper protection member by clamping between the first paragraph of described fastener and the inner circle of liner clamp.
7. pintle assembly according to claim 5, wherein, also comprises the clamping part being attached on described fastener, in central axial direction, described upper protection member by clamping between described clamping part and the inner circle of described liner clamp.
8. pintle assembly according to claim 7, wherein, described clamping part is C-clamp.
9. according to arbitrary described pintle assembly in claim 2-8; wherein; described upper protection member comprises extension, described extension from the described upper end face of the outer part of described liner clamp along described central axis at the default second distance of direction upper offset away from car body.
10. according to arbitrary described pintle assembly in claim 2-9, wherein, extend along described central axial direction from one or more discrete locations of the upper end face away from car body of described outer part described upper stopper section.
11. according to arbitrary described pintle assembly in claim 2-10; wherein; described fender guard also comprises lower protection member, and described liner clamp also comprises from the rear surface towards car body of described outer part along described central axial direction stopper section towards car body extension.
12. pintle assemblies according to claim 1, wherein, described protection member is configured to lower protection member, and described stopper section is configured to from the rear surface towards car body of described outer part along described central axial direction stopper section towards car body extension.
13. according to the pintle assembly described in claim 11 or 12; wherein; the integral part that described lower protection member is described fastener; the upper end face away from car body of described lower protection member is against the rear surface towards car body of the inner circle of described liner clamp, and the rear surface towards car body of described lower protection member is directly or by being formed at shoulder on fastener against car body.
14. according to arbitrary described pintle assembly in claim 11-13, and wherein, described lower protection member comprises base portion and the flange that extends and/or extend towards car body along described central axial direction away from car body along described central axial direction from the periphery of described base portion.
15. according to the pintle assembly described in claim 11 or 12, and wherein, described lower protection member is configured to be installed to separately member of second on fastener in concentric mode, described lower protection member by clamping between described fastener and car body.
16. according to arbitrary described pintle assembly in claim 11-15; wherein; the rear surface towards car body of the outer part of described liner clamp is apart from the 3rd predetermined distance of car body; or described lower protection member is provided with extension, described extension from the described rear surface of the outer part of described liner clamp along described central axis in the 3rd distance described in the direction upper offset towards car body.
17. according to arbitrary described pintle assembly in claim 11-16, and wherein, extend along described central axial direction from one or more discrete locations of the rear surface towards car body of described outer part described lower stopper section.
18. according to arbitrary described pintle assembly in claim 1-17, wherein, described fender guard by elastic deformable material for example plastics make.
19. 1 kinds of vehicle windscreen wiper systems, comprise that described wiper system also comprises according to arbitrary described pintle assembly in claim 1-18:
For the driven unit of power is provided;
Be connected to the connecting rod assembly between driven unit and described pintle assembly; And
The wiper arm assembly of being made by the pivot of described pintle assembly, it comprises for carry out the rain shaving blade of reciprocally swinging in vehicle windscreen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310051125.2A CN103991431B (en) | 2013-02-16 | 2013-02-16 | Wiper system and its liner clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310051125.2A CN103991431B (en) | 2013-02-16 | 2013-02-16 | Wiper system and its liner clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103991431A true CN103991431A (en) | 2014-08-20 |
| CN103991431B CN103991431B (en) | 2017-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310051125.2A Expired - Fee Related CN103991431B (en) | 2013-02-16 | 2013-02-16 | Wiper system and its liner clamp |
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| Country | Link |
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| CN (1) | CN103991431B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113879254A (en) * | 2021-12-06 | 2022-01-04 | 四川富士电机有限公司 | Wiper installation rod and processing device thereof |
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| JPH04138955A (en) * | 1990-09-28 | 1992-05-13 | Asmo Co Ltd | Device for stopping wiper motor in fixed position |
| EP0776802A2 (en) * | 1995-12-01 | 1997-06-04 | Ford-Werke Aktiengesellschaft | Grommet for windscreen wiper shaft |
| CN201317346Y (en) * | 2008-12-25 | 2009-09-30 | 上海通用汽车有限公司 | Breakable wiping liner clamp and wiper formed by same |
| CN201729145U (en) * | 2010-06-26 | 2011-02-02 | 浙江国雨汽车零部件有限公司 | Packet rolling connection structure of fixing rod and bush seat of wiper transmission mechanism |
| CN202624159U (en) * | 2012-06-07 | 2012-12-26 | 博世汽车部件(长沙)有限公司 | Wiper motor assembly and gear box thereof |
| CN203186301U (en) * | 2013-02-16 | 2013-09-11 | 博世汽车部件(长沙)有限公司 | Windscreen wiper system and lining base thereof |
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2013
- 2013-02-16 CN CN201310051125.2A patent/CN103991431B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04138955A (en) * | 1990-09-28 | 1992-05-13 | Asmo Co Ltd | Device for stopping wiper motor in fixed position |
| EP0776802A2 (en) * | 1995-12-01 | 1997-06-04 | Ford-Werke Aktiengesellschaft | Grommet for windscreen wiper shaft |
| CN201317346Y (en) * | 2008-12-25 | 2009-09-30 | 上海通用汽车有限公司 | Breakable wiping liner clamp and wiper formed by same |
| CN201729145U (en) * | 2010-06-26 | 2011-02-02 | 浙江国雨汽车零部件有限公司 | Packet rolling connection structure of fixing rod and bush seat of wiper transmission mechanism |
| CN202624159U (en) * | 2012-06-07 | 2012-12-26 | 博世汽车部件(长沙)有限公司 | Wiper motor assembly and gear box thereof |
| CN203186301U (en) * | 2013-02-16 | 2013-09-11 | 博世汽车部件(长沙)有限公司 | Windscreen wiper system and lining base thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113879254A (en) * | 2021-12-06 | 2022-01-04 | 四川富士电机有限公司 | Wiper installation rod and processing device thereof |
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|---|---|
| CN103991431B (en) | 2017-10-31 |
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