CN2841434Y - Connecting device for automobile windshield wiper arm - Google Patents

Abstract

The utility model relates to a connecting device for rocking arms of automobile windshield wipers, which comprises an adapting seat and a bottom seat, wherein the mutual connecting point of the top surface and the front side surface of the adapting seat is penetrated with a hollow opening, and an upright and elastic clamping hook convexly extends in the center of the hollow opening. In addition, one clamping convex block is outwards and convexly arranged on the mutual connecting positions of the left side surface and the right side surface of the adapting seat with the back side surface respectively. A front flange sheet on the head end of a rocking arm and two lower flange sheets are respectively clamped and buckled by the upright and elastic clamping hook and the two clamping convex blocks. Only a single finger is needed to apply force to the upright and elastic clamping hook directly in the practical disassembly word of replacing new and old windshield wipers besides the mutual connection of the windshield wiper and the rocking arm is more steady. Thus, the purpose of disassembling the windshield wiper and the rocking arm mutually can be achieved. The connecting device for rocking arms of automobile windshield wipers has the advantages of rapidness, time saving, simpleness, and easiness.

Description

The connecting device of windshield rain brush rocking arm

[technical field]

The utility model relates to a kind of connecting device of windshield rain brush rocking arm, particularly has a lordosis embolium and each tool of bottom, two sides clamp-close type rain brush rocking arm of flange piece once simultaneously at a kind of head end, designed special-purpose connecting device, it only can be separated from each other with clamp-close type rain brush rocking arm easily with the singlehanded application of force that refers to, make to change that the disassembling section of new and old rain brush is more simple and easy to save time and fast, belong to vehicular spare parts.

[prior art]

The rain brush rocking arm head end pattern that is used at present on the windshield is of a great variety, the rocking arm head end of different types must cooperate its exclusive connecting device to fix with the Wiper blade joining line, for example US Patent US6687948, US6782581, US6836927, US6836926, US6910244 number, and U.S.'s publication US2004/0025280, US2005/0039292, US2004/0098821, US2005/0177970 number etc., all oneself discloses the different rocking arm head end patterns and the connecting device of exclusive assembly thereof is arranged; Wherein, it is promptly extremely shown in Figure 5 as Fig. 1, Fig. 3 that this U.S. openly announces No. 2005/0177970 disclosed clamp-close type head end rocking arm, its head end 2 is hollow cuboids that the bottom surface has opening, be extended with the lordosis embolium 3 of a K/UP in leading edge face epirelief, and convex with a pair of being parallel to each other and the identical lower flange sheet 4 of shape under the bottom mediad of two upright long side surfaces, this a pair of lower flange sheet 4 intersects angle theta in an acute angle (as Fig. 1 towards the bottom edge face 2a of the end limit of rocking arm 1 face 4a and head end 2 AShown in the view); Then extremely shown in Figure 5 with 1 exclusive connecting device that cooperates of this known clamp-close type head end rocking arm as Fig. 2, be to combine by a body 10 and a upper cover base 20; Wherein, body 10 is a cuboid, and the central authorities of its epimere portion two upright long side surfaces 11 are penetrated with an axis hole 12, and the root edge medial surface fovea superior of hypomere portion is set as a pair of opposed grip slipper 13 that parallels, and this grip slipper 13 becomes arranged perpendicular mutually with this axis hole 12; Upper cover base 20 has the hollow cuboid of opening for the bottom surface, and directly cover is placed on the two upright long side surfaces 11 of the end face of body 10 and epimere portion, be penetrated with a block button hole 211 on the preceding end face 21 of its leading portion portion and center section part connecting position, central authorities in center section part two upright sides 22 respectively are penetrated with a circular hole 221, be parallel to each other opposed level to elasticity empennage 24 and on the aft end face 23 of these two upright sides 22, respectively protruded out one, wherein, each outwards convexes with a buckle projection 25 on the free end lateral surface of this two elasticity empennage 24, in addition establishes tool between the end face of this buckle projection 25 and elasticity empennage 24 and becomes oblique top face 251 (as Fig. 2 CShown in the view), and with the upright lateral surface joint of elasticity empennage 24, then establish tool become with head end 2 on the prism 252 of angle theta equal angular (as Fig. 2 BShown in the view).

The binding fixed form of this known clamp-close type head end rocking arm connecting device exclusive with it is to shown in Figure 6 as Fig. 3, at first, body 10 utilizes the grip slipper 13 of its bottom surface, be clamped on the middle position of the metallic elastic bar 7 of rain brush 6 earlier, again upper cover base 20 upper shields are coated on the body 10, and insert on the upper cover base 20 circular hole 221 of upright side 22 respectively by an anchor shaft 30, and the axis hole 12 on body 10 long side surfaces 11, can make this upper cover base 20 must be on this body 10 be the center with anchor shaft 30, and the pivot with certain limit tilts; Then, the lordosis embolium 3 of rocking arm 1 head end 2 leading edges is aimed at the block button hole 211 on the upper cover base 20 preceding end faces 21 and inserted (shown in Fig. 4 and Fig. 6 (A) view), again rocking arm 1 is pressed down toward the upper cover base 20 direction application of forces, make the buckle projection 25 (shown in Fig. 6 (B) view) on the two elasticity empennages 24 of two lower flange sheets, 4 pushing tow upper cover bases 20 of its head end 2, last by under oblique top face 251 guide functions on this two buckles projection 25, two lower flange sheets, 4 synchronous clips are fixed on the prism 252 on this two buckles projection 25 (shown in Fig. 5 and Fig. 5 A-A and Fig. 6 (C)), promptly finish both bindings of rocking arm 1 and rain brush 6 and fix.

Yet above-mentioned connecting device is being dismantled in the operation that separates with clamp-close type head end rocking arm, and it is as follows but to have a great disappearance:

See also Fig. 7 to shown in Figure 9, this known rocking arm 1 with clamp-close type head end, before changing new rain brush, must be earlier to overlaying the upwards application of force (as shown in Figure 7) of the rocking arm 1 that on windshield G, is the level of state, and utilize its elastic bending part 5 to be fulcrum, make this rocking arm 1 be transformed into erectility, so that rain brush 6 can be away from windshield G (as shown in Figure 8), so state could begin to dismantle old rain brush 6 down; The step of its dismounting is:

A. the thumb that uses a palm and forefinger contact respectively on the buckle projection 25 of two elasticity empennages 24 of upper cover base 20, and application of force compressing synchronously makes two free ends of this two elasticity empennage 24 adjacent to each other (shown in two arrows of Fig. 9 (A) view) together, makes that the prism 252 on this two buckles projection 25 no longer is limited on the two lower flange sheets 4 of head end 2 by clip;

B. then grip rocking arm 1, and, make the two elasticity empennages 24 (shown in Fig. 9 (B) view) that two lower flange sheets 4 of head end 2 break away from the upper cover base 20 on this rocking arm 1 towards the direction application of force away from upper cover base 20 with the another hand; And

C. continue that both separate with rocking arm 1 and upper cover base 20, the internal face of end face 21 before the lordosis embolium 3 of head end 2 leading edges no longer supports subsides to touch upper cover base 20, can make this lordosis embolium 3 outwards break away from the restriction of block button hole 211, and finish the field-strip (shown in Fig. 9 (C) view) of whole rocking arm 1 and rain brush 6.

Among the abovementioned steps a, if meet the disability personnel that lack a thumb or forefinger, middle finger etc., promptly can cause to force synchronously this two elasticity empennage 24 mutually by pasting, reach and this two lower flanges sheet 4 between clip (if only with one of them elasticity empennage 24 toward interior pressures displacement, and the lower flange sheet 4 of head end 2 is broken away from, the effect that still has clip under the situation of synchronous shift is not arranged) because of another elasticity empennage 24, disappearance in this design is because of due to the people who incompleteness is not pointed takes into account, and the meaning of discrimination is quite arranged.Moreover, but this elasticity empennage 24 does not also have the structure design of any auxiliary positioning, easily in the process that the rocking arm start is struck off, suffer improper foreign matter card attached external force is touched or material because of being subjected under the factors such as the aging tensile strength of Exposure to Sunlight weakens, it is initiatively disconnected from each other with two lower flange sheets 4 of head end 2 to produce no early warning ground, the last surface that injures windshield G indirectly (the most normal the occurring in of this phenomenon met in heavy rain or the heavy snow, and often the speed that rocking arm is swung back and forth transfers to following of fast speed state and causes forming).

[novel content]

Main purpose of the present utility model is at the connecting device that a kind of windshield rain brush rocking arm is provided, it comprises a stacker and a base, wherein, outside joining, the end face of stacker and leading flank be penetrated with a hollow open, protruded out a upright elastic fastening hook in these hollow open central authorities, in addition on the position that the left surface of stacker and right flank and trailing flank join, outwards respectively convex with a clip projection; Must withhold the lordosis embolium and the two lower flange sheets of rocking arm head end respectively by this upright elastic fastening hook and two clip projections, outside making that the mutual binding of rain brush and rocking arm is more firm, in the enforcement field-strip, also only need directly to this upright elastic fastening hook application of force with single finger, can reach the purpose that rain brush and rocking arm order are broken away from mutually, save time very fast and easily simple.

The connecting device of a kind of windshield rain brush of the utility model rocking arm, it comprises:

One stacker, it has an end face, a leading flank, a left surface, a right flank and a trailing flank; Wherein, the position that joins at end face and leading flank is penetrated with a hollow open, and end face inside down convexes with a rectangular hollow base frame, the bottom surface of this hollow base frame is length than the root edge of left surface and right flank, and each is separated out a left groove and right groove respectively between its two sides and this left surface and the right flank, respectively being arranged with one on the two sides of bottom surface central authorities parallels the ringent Elastic Circular draw-in groove of opposed loudspeaker in addition, and on the side of hollow open direction, extend a level to cantilever, and upwards convex with a upright elastic fastening hook again in the free end of this cantilever, and the top of this upright elastic fastening hook convexes with a horizontal shutting flange again towards trailing flank; Left surface and right flank are respectively on the position that joins with trailing flank, outwards respectively convex with a clip projection, and the top of this clip projection is established tool and is become the oblique top face of chamfering down, and establish tool at the side of trailing flank dorsad and become prism, and the angle angle between this oblique top face and the prism is identical with angle between bottom edge face and the end limit face on the head end; And

One base, it has a bottom surface wallboard, a left side wall panel and a right side wall panel; Wherein, these bottom surface wallboard central authorities are equipped with a fixed orifice, each is concaved with one group of grip slipper that is parallel to each other downwards the both sides of the bottom surface wallboard before and after this fixed orifice, in addition be provided with a symmetrical shape and a parallel left side wall panel and a right side wall panel mutually in that its dual-side is convex respectively again, and on the middle position of this left side wall panel and right side wall panel again cross-over connection be provided with a level to anchor shaft.

The connecting device of a kind of windshield rain brush of the utility model rocking arm, its advantage is: it withholds the lordosis embolium and the two lower flange sheets of rocking arm head end respectively by this upright elastic fastening hook and two clip projections, make that the mutual binding of rain brush and rocking arm is more firm, and in the field-strip of implementing the new and old rain brush of replacing, also only need directly to this upright elastic fastening hook application of force with single finger, can reach the purpose that rain brush and rocking arm are broken away from mutually, not only save time fast but also easily simple.

[description of drawings]

Fig. 1: be the schematic perspective view of commonly using clamp-close type head end rocking arm.

Fig. 1 A: be among Fig. 1 A to view.

Fig. 2: be the three-dimensional exploded view of commonly using the special-purpose connecting device of clamp-close type head end rocking arm.

Fig. 2 B:Be among Fig. 2 B to view.

Fig. 2 C:Be among Fig. 2 C to view.

Fig. 3: be one of assembling schematic perspective view of commonly using by clamp-close type head end rocking arm and special-purpose connecting device.

Fig. 4: be commonly use clip formula head end rocking arm and special-purpose connecting device the assembling schematic perspective view two.

Fig. 5: be commonly use clip formula head end rocking arm and special-purpose connecting device the assembling schematic perspective view three.

Fig. 5 A-A:Be among Fig. 5 A-A to cutaway view.

Fig. 6 (A), (B), (C): be the number of assembling steps scheme drawing of commonly using clamp-close type head end rocking arm and special-purpose connecting device.

Fig. 7: be to commonly use clamp-close type head end rocking arm and special-purpose connecting device thereof in conjunction with one of use scheme drawing of rain brush.

Fig. 8: be to commonly use clamp-close type head end rocking arm and special-purpose connecting device thereof in conjunction with two of the use scheme drawing of rain brush.

Fig. 9 (A), (B), (C): be the demounting procedure schematic perspective view of commonly using clamp-close type head end rocking arm and special-purpose connecting device.

Figure 10: the block diagram that is stacker in the utility model.

Figure 10 B-B:Be among Figure 10 B-B to cutaway view.

Figure 10 C-C:Be among Figure 10 C-C to cutaway view.

Figure 11: the block diagram that is base in the utility model.

Figure 11 D-D:Be among Figure 11 D-D to cutaway view.

Figure 12 (A), (B), (C): the combination step scheme drawing that is stacker and base in the utility model.

Figure 13: be the utility model and commonly use one of assembling schematic perspective view of clamp-close type head end rocking arm.

Figure 14: be the utility model and two of the assembling schematic perspective view of commonly using clamp-close type head end rocking arm.

Figure 15: be the utility model and three of the assembling schematic perspective view of commonly using clamp-close type head end rocking arm.

Figure 16: be the utility model and four of the assembling schematic perspective view of commonly using clamp-close type head end rocking arm.

Figure 17: be the utility model in conjunction with rain brush with commonly use one of use scheme drawing of clamp-close type head end rocking arm.

Figure 18: be that the utility model is in conjunction with rain brush and two of the use scheme drawing of commonly using clamp-close type head end rocking arm.

Figure 19 (A), (B), (C), (D): be that the utility model is from the scheme drawing of commonly using demounting procedure on the clamp-close type head end rocking arm.

Number in the figure is as follows:

1-rocking arm 2-head end 2a-bottom edge face

3-lordosis embolium 4-lower flange sheet 4a-end limit face

5-elastic bending part 6-rain brush 7-metallic elastic bar

The upright long side surface 12-of 10-body 11-axis hole

End face before the 13-grip slipper 20-upper cover base 21-

The upright side of 22-23-aft end face 24-elasticity empennage

25-buckle projection 30,54-anchor shaft 40-stacker

41-end face 42-leading flank 43-left surface

44-right flank 45-trailing flank 46-hollow open

The upright elastic fastening hook 49-of 47-hollow base frame 48-clip projection

50-base 51-bottom surface wallboard 52 left side wall panel

53-right side wall panel 211-block button hole 221-circular hole

251,491-oblique top face 252,492-prism 471-bottom surface

The right groove 474-of 472-left side groove 473-Elastic Circular draw-in groove

475-cantilever 481-horizontal shutting flange 511-fixed orifice

512-grip slipper G-windshield θ-angle

[specific embodiment]

See also Figure 10 and shown in Figure 11, the connecting device of the utility model windshield rain brush rocking arm, it comprises:

One stacker 40, it has an end face 41, a leading flank 42, a left surface 43, a right flank 44 and a trailing flank 45; Wherein, the position that joins at end face 41 and leading flank 42 is penetrated with a hollow open 46, and end face 41 inside down convex with a rectangular hollow base frame 47, the bottom surface 471 of this hollow base frame 47 is length than the root edge of left surface 43 and right flank 44, and each is separated out a left groove 472 and right groove 473 (shown in the B-B cross section view among Figure 10) respectively between its two sides and this left surface 43 and the right flank 44, respectively being arranged with one on the two sides of bottom surface 471 central authorities parallels opposed loudspeaker opening shape Elastic Circular draw-in groove 474 in addition, and on the side of hollow opening 46 directions, extend a level to cantilever 475, and upwards convex with a upright elastic fastening hook 48 again in the free end of this cantilever 475, and the top of this upright elastic fastening hook 48 convexes with a horizontal shutting flange 481 (shown in C-C cross section view among Figure 10) again towards trailing flank 45; Left surface 43 and right flank 44 are respectively on the position that joins with trailing flank 45, outwards respectively convex with a clip projection 49, and the top of this clip projection 49 is established tool and is become the oblique top face 491 of chamfering down, and establish tool at the side of trailing flank 45 dorsad and become prism 492, and the angle theta angle between this oblique top face 491 and the prism 492 is the angle theta identical (shown in the C-C cross section view among Figure 10) between the face 4a of limit with bottom edge face 2a on the head end 2 and end; And

One base 50, it has a bottom surface wallboard 51, a left side wall panel 52 and a right side wall panel 53; Wherein, wallboard 51 central authorities in bottom surface are equipped with a fixed orifice 511, each is concaved with one group of grip slipper that is parallel to each other 512 downwards in the both sides of the bottom surface wallboard 51 of these fixed orifice 511 front and back, after penetrating this fixed orifice 511 and metal spring sheet bar 7 respectively by a rivet, must jointly base 50 be combined securely with two groups of grip slippers 512 and not come off or be shifted (shown in the imaginary line in the D-D cross section view among Figure 11), in addition, in a convex respectively again symmetrical shape and a mutual parallel left side wall panel 52 and the right side wall panel 53 of being provided with of the dual-side of bottom surface wallboard 51, and on both middle positions of this left side wall panel 52 and right side wall panel 53 again cross-over connection have a level to anchor shaft 56, make anchor shaft 54 and this left side wall panel 52 be mutually perpendicular configuration with right side wall panel 53.

Extremely shown in Figure 16 as Figure 12, be the utility model and known array mode and step with clamp-close type head end rocking arm, at first, two Elastic Circular draw-in grooves 474 of hollow base frame 47 on stacker 40 bottom surfaces are aimed to the anchor shaft 54 (shown in the A view among Figure 12) that is affixed on base 50 central authorities, end face 41 application of forces in this stacker 40 press down again, then this two Elastic Circular draw-in groove 474 can be subjected to the compressing that stops of anchor shaft 54, extend out (shown in the B view among Figure 12) and produce to both sides, after the continuation application of force presses down, can impel this anchor shaft 54 to embed fully in this two Elastic Circular draw-in groove 474, and then reach both combine of stacker 40 and base 50 (shown in C view among Figure 12); Then, head end 2 past tilting with rocking arm 1, make the prism 492 (as shown in figure 13) of clip projection 49 on bottom edge face 2a aligning stacker 40 two sides on two lower flange sheet 4, chimeric by pasting mutually this two lower flanges sheet 4 again with clip projection 49, this moment, head end 2 was still the heeling condition (as shown in figure 14) that maintenance is faced upward, at last, with two clip projections 49 is fulcrum, head end is depressed to horizontality, then its lordosis embolium 3 promptly can be urged to the horizontal shutting flange 481 on the upright elastic fastening hook 48 synchronously, force this upright elastic fastening hook 48 to produce distortion displacement (as shown in figure 15) backward, and after the lordosis embolium 3 of hearing head end 2 slips into the sound that is sent in the fastening flange 481 on the upright elastic fastening hook 48, promptly be to finish rocking arm 1 and rain brush 6 mutual binding (as shown in figure 16) between the two.

And for example Figure 17 is to shown in Figure 19, when using the utility model before desiring the new rain brush of dismounting and change, make progress (as shown in figure 17) with aforementioned known identical rocking arm 1 application of force that on windshield G, is the level of state that still need will overlay earlier, it is become under the upright state fully just can implement (as shown in figure 18); Its demounting procedure is quite fast simple, only need directly it to be out of shape backward (as (A) among Figure 19 to upright elastic fastening hook 48 application of forces with a finger, (B) shown in the view), expand to when making horizontal shutting flange 481 no longer withhold the lordosis embolium 3 of head end 2 up to its deflection, can make the clip (shown in (C) view among Figure 19) of the leading edge disengaging stacker 40 of head end 2, and the total weight of this whole stacker 40 and base 50 and rain brush 6 also can be because of gravitate synchronously down landing and break away from rocking arm 1 (shown in (D) view among Figure 19) automatically down, make whole field-strip accomplish without any letup, even finger has incomplete personage also can finish (doing the action of exerting pressure simultaneously because of no longer needing two fingers) easily; Moreover, because two clip projections 49 on the stacker 40 are fixed type and non-resilient movable structure, event can not produce the anxiety that disengaging is dropped because of violent quick swing of rocking arm 1, more can not be subjected to the collision of improper external force and the facts of disengaging generation mutually with causing not having early warning.

Claims (1)

1. the connecting device of a windshield rain brush rocking arm, it is characterized in that: it comprises:

One stacker, it has an end face, a leading flank, a left surface, a right flank and a trailing flank; Wherein, the position that joins at end face and leading flank is penetrated with a hollow open, and end face inside down convexes with a rectangular hollow base frame, the bottom surface of this hollow base frame is length than the root edge of left surface and right flank, and each is separated out a left groove and right groove respectively between its two sides and this left surface and the right flank, respectively being arranged with one on the two sides of bottom surface central authorities parallels the ringent Elastic Circular draw-in groove of opposed loudspeaker in addition, and on the side of hollow open direction, extend a level to cantilever, and upwards convex with a upright elastic fastening hook again in the free end of this cantilever, and the top of this upright elastic fastening hook convexes with a horizontal shutting flange again towards trailing flank; Left surface and right flank are respectively on the position that joins with trailing flank, outwards respectively convex with a clip projection, and the top of this clip projection is established tool and is become the oblique top face of chamfering down, and establish tool at the side of trailing flank dorsad and become prism, and the angle angle between this oblique top face and the prism is identical with angle between bottom edge face and the end limit face on the head end; And

One base, it has a bottom surface wallboard, a left side wall panel and a right side wall panel; Wherein, these bottom surface wallboard central authorities are equipped with a fixed orifice, each is concaved with one group of grip slipper that is parallel to each other downwards the both sides of the bottom surface wallboard before and after this fixed orifice, in addition be provided with a symmetrical shape and a parallel left side wall panel and a right side wall panel mutually in that its dual-side is convex respectively again, and on the middle position of this left side wall panel and right side wall panel again cross-over connection be provided with a level to anchor shaft.

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