DE10320930A1

DE10320930A1 - Connection device for a wiper blade on the wiper arm of a wiper system

Info

Publication number: DE10320930A1
Application number: DE2003120930
Authority: DE
Inventors: Wolfgang Ostrowski
Original assignee: Volkswagen AG
Current assignee: Volkswagen AG
Priority date: 2003-05-09
Filing date: 2003-05-09
Publication date: 2004-11-25
Also published as: CN100537315C; CN1784326A; WO2004098963A1

Abstract

The invention relates to a connecting device for a wiper blade on the wiper arm of a windshield wiper system, which is formed from a resilient supporting element with a wiper strip, with a holding device fastened to the outer edges of the supporting element and a connecting bolt arranged transversely to the longitudinal extension of the wiper blade on the holding device. It solves the task of designing such a connection device so that the parts subject to wear are arranged on the wiper blade. For this purpose, an adapter block (9, 21, 26, 30, 37, 43, 48, 54, 60) is articulated on the connecting bolt (8, 42, 53), with which the end piece (19, 22, 24, 27 , 36, 39, 44, 52, 55, 62) of the wiper arm (2) via a latching connection or clinker is releasably securely connectable and firmly connected in the assembled state of the wiper blade (1), and that the adapter bracket (9, 21, 26, 30 , 37, 43, 48, 54, 60) is designed in such a way that the connecting bolt (8, 42, 53) and thus also the wiper blade (1) have an oscillating movement relative to the latter (9, 21, 26, 30, 37, 43, 48, 54, 60) can perform.

Description

The The invention relates to a connection device for a Wiper blade on the wiper arm of a windshield wiper system for a vehicle, especially for one arranged in the projection onto the window next to the wiper arm Wiper blade.
The arrangement of a wiper blade on the wiper arm of a windshield wiper system takes place via a connection device, directly or via an elaborate bracket system, the direct arrangement having the advantage of a small overall height. Solutions with such an arrangement are, for example, in DOS 23 24 702, the DE 34 24 729 A1 , the DE 197 29 864 A1 , the DE 197 29 865 A1 , the DE 199 35 861 , the DE 296 11 722 U1 and WO 99/36300. A wiper blade for such an arrangement generally has a curved elastic carrier and a wiper strip with a wiper lip which rests elastically on the respective window of the vehicle as a result of a contact pressure applied to the wiper blade by the wiper arm.
The Indian DE 197 29 864 A1 The windshield wiper described has a wiper blade with a resilient support element for the wiper strip, on the side of which faces away from the windshield the connection device which can be connected to the driven wiper arm is held, this being assigned to a recess in the wiper strip. The support element formed from two parallel spring rails engages in two longitudinal grooves opposite one another on the wiper strip and is secured in the longitudinal grooves by a holder which overlaps the outer longitudinal edges of the spring rails. The holder has two flange-like projections which extend in the longitudinal direction of the support element, are arranged standing up to the window and extend away therefrom, to which a hinge pin arranged transversely to the longitudinal extension of the wiper blade and approximately in the wiping direction thereof is fastened for a bearing receptacle formed on the wiper arm.
Furthermore, with the DE 199 24 662 A1 a windshield wiper for motor vehicle windows has become known, which has on the wiper arm a connection pin projecting only on one side for a receiving bearing arranged on the wiper blade. To secure the connection between the wiper blade and the wiper arm in the axial direction of the connecting bolt, a securing clip is arranged on the wiper arm parallel and at a distance from the connecting bolt on its side facing away from the free end of the wiper arm, which overlaps the wiper blade on the side facing away from the window and thus visibly , It has also been suggested ( DE 101 60 111.5 ) that the connection device is formed from an adapter (end piece) arranged on the wiper arm with an air guide profile and a mounting block (adapter block) fixedly arranged on the wiper blade for this, the connecting bolt projecting only to one side being arranged either on the end piece or on the mounting block and the bearing holder is formed on the other part. With these connection devices, both the device elements arranged on the end piece of the wiper arm and the device elements arranged on the wiper blade are subject to wear.
The The invention has for its object a connection device to design according to the preamble of claim 1 so that the Wear Elements are arranged on the wiper blade.
This Task is with a connection device according to the preamble of claim 1 by its characterizing Features solved. Advantageous configurations are listed in the subclaims.
The Invention consists in a connection device for a wiper blade on the wiper arm of a windshield wiper system, which (in a known manner) wiper blade-fixed holding device and a device arranged thereon extending transversely to the longitudinal extent of the wiper blade extending connecting bolt, in which between an adapter bracket of the holding device and the end piece of the wiper arm is arranged. The adapter block is on the connection bolt articulated and guided on the holding device, corresponding to the tail of the wiper arm and is with this adapted end piece via a releasable connection, for example a locking connection or a latch, arranged on the wiper arm. The adapter block is designed such that the connecting bolt and thus also the wiper blade due to the curvature of the vehicle window and certain swinging movement towards this and thus also towards the Run the wiper arm can. The one at the end of the Wiper arm adapter block arranged in a fixed position as a fixed one Part of the wiper blade is thus a mediator between the wiper blade and the wiper arm and at the same time mounting element For this. Which enable movement of the wiper blade relative to the wiper arm Elements and leadership between the adapter bracket and the holding device are therefore only on Wiper blade trained. This is only the wiper blade as consumable of the wiper. The assembly and disassembly of a Wiper blade on the wiper arm is simple and error-free possible. The connection between them is stable and robust and holds in particular withstood the loads at high driving speeds.
The The adapter bracket is preferably a hood-shaped casting a dimensionally stable Plastic or metal, in particular light metal, which covers the holding device and at least partially on their parallel to the longitudinal extension of the wiper blade trained long sides is present at the warehouse for the connecting bolt are trained. these can advantageous as rest for the ends of the connecting bolt be designed, the locking receptacles each with an insertion slot are provided, the an insertion opening has the side of the adapter bracket facing the wiper blade. As a result, the adapter bracket is easily in the two Insertion slots inserted connecting bolt by exerting pressure, through which the connecting bolt is engaged with the locking receptacles, on the connecting bolt and thus can also be arranged on the holding device. The adapter bracket is thus articulated on the holding device and by the partial system on this guided tilt-free.
The tail the wiper arm is appropriately designed that this if the wiper blade is arranged on the wiper arm, the adapter bracket or essentially engages positively, so that Wiper blade also in this position in relation to the Vehicle window is stable and tilt-free.
Compared to the Wiper blade, the adapter bracket is arranged at a distance from this an oscillating movement to enable the connecting bolt, which, due to the curvature the vehicle window must become, thus the wiper blade in every position on the vehicle window with the required contact pressure on this. To limit movement you can use the wiper blade facing side of the adapter block on both sides of the connecting bolt stop surfaces be trained.
In the subclaims are different embodiments the connecting device lists which are explained below with reference to drawings. All of these embodiments enable a simple and therefore quick disassembly and assembly of the one such connection device equipped Wiper blade on the assigned wiper arm of a wiper.
In the 1a to 1c is a connection device for a wiper blade 1 on the wiper arm 2 a wiper system shown. The wiper blade 1 has one of two spring rails 3 formed support element for a wiper strip 4 with a wiper lip 5 and one on the outer edges of the spring rails 3 by means of claw-like feet 6 clamped and the wiper strip 4 on the wiping lip 5 opposite side of the spring rails 3 comprehensive holding device 7 with a transverse to the longitudinal extension of the wiper blade 1 connecting bolts fastened in a through hole 8th on. The holding device 7 is arranged in the area of an interrupted spoiler bar, which is also on the outer edges of the spring rails 3 is held and the wiper strip 4 overlaps and of which a section of one part is shown. The connecting bolt 8th serves the rotatable arrangement of an adapter bracket 9 who in 1b is shown.
This adapter bracket 9 is a hood-like, cuboid-shaped cast aluminum part that holds the holding device when assembled 7 encloses and a bearing on the long side walls 10 for the connecting bolt 8th is trained. Camps 10 are on the wiper blade 1 facing side of the adapter bracket 9 with an insertion gap 11 for the connecting bolt 8th provided and point to the insertion gap 11 opposite side a slot 12 for elastic expansion of the bearing 10 on. The adapter bracket is on both ends 9 with a recess 13 provided, the two opposite guide surfaces 14 trains with which the adapter bracket 9 on the holding device 7 rests movably and through which it is guided. Due to the rotatable arrangement of the adapter bracket 9 on the connecting bolt 8th and its front guide on the holding device 7 is a swinging movement around the connection bolt 8th ensured.
The adapter bracket forms to ensure an unobstructed swinging movement 9 on its the wiper blade 1 facing side opposite the edges of the spring rails 3 a gap and also has recesses 15.1 and 15.2 on an inclination of the same around the connecting bolt 8th allow unobstructed, the recesses 15.1 to accommodate the feet 6 serve at a corresponding inclination.
Furthermore, the adapter bracket 9 with a catch on both of its long sides 16 provided on an elastic bendable tongue 17 on the wall of the adapter bracket 9 is formed, which at its free end to a slightly outwardly protruding operating handle 18 is trained.
The wiper arm 2 is at its free end to the adapter bracket 9 customized tail 19 trained that on the adapter bracket 9 can be arranged essentially positively, such that the wiper blade 1 can perform swinging movements without hindrance. For fixing to the adapter bracket 9 has the end piece 19 with the latches 16 corresponding recesses 20 into which the latches 16 in the assembled state of the wiper blade 1 intervene, what this simply in the end piece 19 is impressible. For dismantling the wiper blade 1 will handle the operation 18 squeezed, causing the latches 16 out of engagement with the locking recesses 20 and the wiper blade 1 is from the tail 19 deducted.
The 2a and 2 B show the execution of a connection device that differs from the above only in that on the long sides of the adapter block 21 two latches each 16 with operating handles 18 are molded with the in the end piece 22 of the wiper arm 2 introduced recesses 20 can be brought into engagement. The design contributes to increasing the stability of the fastening arrangement. 2a shows the already on the holding device 7 mounted adapter bracket 21 over which the wiper blade 1 in a simple way in the end piece 22 is impressible.
When executing according to 3a and 3b is a pair of locking lugs with two curved sliding blocks 23 replaced that with in the tail 24 ( 3b ) trained and in the same way curved stomata 25 can be brought into engagement. The curvatures are opposite those on the other side of the connecting bolt 8th trained latches 16 slightly convex and also serve to increase the stability of the fastening arrangement in the sense of an additional securing. However, the assembly of the wiper blade 1 at the end piece 24 with an insertion of the slide blocks 23 into the stomata 25 connected and thus somewhat difficult compared to the execution according to the 2 , With increasing penetration of the sliding blocks 23 into the stomata 25 becomes the angle of inclination of the wiper blade 1 opposite the tail 24 due to the curvature always less and is in the locking position, in which the locking lugs in the locking recesses 20 snapped, zero.
Another version of a connection device show the 4a and 4b , This is the adapter bracket 26 on its the wiper blade 1 facing away and the end piece 27 facing side with an elongated, towards the adapter bracket 26 spring-loaded (not shown) rotary knob 28 provided with one in the end piece 27 arranged and adapted to its shape 29 can be brought into engagement. In the fastening position in which the adapter bracket 26 in the tail 27 is inserted, this knob protrudes 28 through the opening 29 of the tail 27 and beyond this and can be gripped, easily pulled out and rotated, in particular by 90 °, the pulling out of the rotary knob being possible only until the underside thereof reaches the level of the top of the end piece 27 has and can be twisted. By designing a rotary knob 28 and opening 29 and turning the knob 28 becomes the adapter bracket 26 with the tail 27 locked.
5a and 5b show a further embodiment of a connection device with a latching device. On the adapter bracket 30 on the the wiper blade 1 opposite side is a resilient tongue 31 with a snap button 32 , and on the wiper blade 1 facing side on the longitudinal walls of the adapter bracket 30 are notches 33 with stop surfaces for one with locking projections 34 for this and with an opening 35 provided end piece 36 arranged. For mounting the wiper blade 1 becomes the adapter bracket 30 in the tail 36 until it is inserted until the locking button is pressed down elastically 32 with the tongue 31 on the upper wall of the end piece 36 abuts. Then the wiper arm 1 opposite the tail 36 moved in the longitudinal direction of the same until the locking projections 34 completely with the recesses 33 are engaged. The locking button corresponds to this position 32 with the opening 35 and snaps into it, which fixes the adapter bracket to the end piece 36 connected is. Disassembly of the wiper blade 1 is done by pressing down the locking button 32 and then moving the wiper blade 1 from the locked position.
When executing a connection device after 6 is the cuboid adapter bracket 37 Provide on the side facing away from the wiper arm with an end wall which projects beyond the side walls and a stop surface 38 for the tail 39 formed. There is also an adapter bracket 37 on its two long sides a latch 16.1 formed. The tail 39 points with the detents 16.1 in the locked position with the adapter bracket 37 corresponding recesses 40 projections pointing inwards on and on the inside of its longitudinal side walls 41 for reaching under the adapter bracket 37 , Through a sliding movement along the end piece 39 it will be with the adapter bracket 37 provided wiper blade 1 until the end of the end piece stops 39 on the stop surface 38 inserted into this, the adapter bracket 37 from the ledges 41 will undermine. The detents come into this end position 16 with the recesses 40 engage and place the adapter bracket 37 firmly at the end piece.
The execution of a connection device according to the 7a and 7b is made of one on a connecting bolt 42 articulated adapter bracket 43 and an appropriately adapted end piece 44 educated. On the long sides of the adapter bracket 43 the ends of the connecting bolt 42 before and are flattened, the flattening D substantially perpendicular to the longitudinal extension of the Wi shear leaf 1 is trained. The adapter bracket 43 also has two latches 16 on. The tail 44 is on the front with two snap-in receptacles 45 with one insertion opening each 46 for the flattened ends and with recesses 47 for the latches 16 provided, the thickness of the flattened region (D) substantially equal to the width of the insertion opening 46 is at its narrowest point. The wiper blade 1 becomes perpendicular to the end piece 44 with the ends of the connecting bolts 42 in the rest shots 45 introduced by 90 ° in parallel to the wiper arm 2 and thus in the locking position of the locking lugs 16 with the recesses 47 brought. The insertion openings are in their locked position 46 parallel to the wiper blade 1 and arranged perpendicular to the flat D, so that the ends of the connecting bolt 42 as a result of the latches engaging 16 are also fixed and the wiper blade 1 on the wiper arm 2 is set.
8th shows another design of a connection device. This is the adapter bracket 48 a casting with a cylindrical outer surface and, as in the previously described designs, on the connecting bolt 8th the holding device 7 articulated and at a distance from the wiper blade 1 arranged. The adapter bracket is on the end facing away from the end of the wiper arm 48 with a front wall 49 provided that protrudes beyond the lateral surface and at the same time an abutment for spring means arranged on this 50 forms. In the lateral surface, two guide grooves are axially parallel and opposite to each other, i.e. offset by 180 ° 51 each with a 180 ° bend on that of the end wall 49 end facing. Inside the end piece 52 , which is adapted to the outer surface, are two guide pins (not shown) for engagement with these guide grooves 51 arranged. The wiper blade is used for assembly 1 twisted about its longitudinal axis until the guide grooves 51 correspond with the guide pins and then into the end piece 52 inserted and twisted and locked at the stop, as with a bayonet lock, the spring means 50 the adapter bracket 48 press into the locking position and hold in it.
In the 9 Connection device shown has a fixed to the holding device 7 connected connecting bolts 53 on, the ends of both sides of an adapter bracket 54 protrude and parallel to the wiper blade 1 are flattened and slightly concave with respect to this. The adapter bracket 54 is in contrast to the embodiments described above with the holding device 7 , of which only the feet 6 can be seen, firmly connected and on the wiper blade 1 opposite side concave. The tail 55 has in its two longitudinal walls each an elongated and with the respective projecting end of the connecting bolt 53 and its curvature corresponding backdrop 56 with an insertion gap 57 on the wiper arm 1 facing side. The insertion gap 57 is as wide as the end of the connecting bolt 53 is long. An assembly of the wiper blade 1 takes place parallel to the end piece 55 in which the connecting bolt 53 over the insertion gap 57 and then by moving the wiper blade 1 towards the wiper arm 2 into the scenery 56 is pushed. In this is the connection bolt 53 guided back and forth, and, due to the curvatures, can perform the oscillating movements required when operating the wiper.
In the 10a to 10c shown connecting device has a U-shaped holding device not recognizable 58 on that with claw-like feet 59 on the outer edges of the spring rails 3 is clamped. The one on the holding device 58 on the connecting bolt 8th articulated adapter bracket 60 is with one on the wiper blade 1 opposite side with a rectangular opening 61 in the area between the legs of the holding device 58 provided with one at the end piece 62 trained rectangular, but wider opening 63 corresponds. These two openings 61 . 63 is a V-shaped, elastically compressible locking element 64 assigned ( 10c ), with locking rails arranged on the outside 65 and at the free ends of the legs with outward-pointing stop rails 66 is provided, the distance between the locking rails 65 and the stop rails 66 the sum of the thicknesses of the wiper blade 1 facing walls 67 and 68 of the adapter bracket 60 and the tail 62 equivalent. For mounting the wiper blade 1 on the wiper arm 2 this will be up to the stop of the adapter bracket 60 on the wall 68 in the tail 62 introduced and by inserting the elastically compressed locking element 64 locked with subsequent widening.

1: wiper blade
2: wiper
3: spring rails
4: wiper strip
5: wiper lip
6: foot
7: holder
8th: connecting bolt
9: adapter Bock
10: camp
11: introduction gap
12: slot
13: recess
14: guide surface
15.1: recess
15.2: recess
16: locking lug
16.1: locking lug
17: tongue
18: Operating control
19: tail
20: recess
21: adapter Bock
22: tail
23: slide block
24: tail
25: gap opening
26: adapter Bock
27: tail
28: knob
29: opening
30: adapter Bock
31: tongue
32: catch button
33: recess
34: catch projection
35: opening
36: tail
37: adapter Bock
38: stop surface
39: tail
40: recess
41: head Start
42: connecting bolt
43: adapter Bock
44: tail
45: latching receptacle
46: insertion
47: recess
48: adapter Bock
49: end wall
50: spring means
51: guide
52: tail
53: connecting bolt
54: adapter Bock
55: tail
56: link guide
57: introduction gap
58: holder
59: foot
60: adapter Bock
61: opening
62: tail
63: opening
64: locking element
65: locking rail
66: stop element
67: wall
68: wall
D: flattening

Claims

Connecting device for a wiper blade on the wiper arm of a windshield wiper system, which is formed from a resilient support element with a wiper strip, with a holding device fastened to the outer edges of the supporting element and a connecting bolt arranged transversely to the longitudinal extension of the wiper blade on the holding device, characterized in that on the connecting bolt ( 8th . 42 . 53 ) an adapter bracket ( 9 . 21 . 26 . 30 . 37 . 43 . 48 . 54 . 60 ) is articulated with which the end piece adapted to this ( 19 . 22 . 24 . 27 . 36 . 39 . 44 . 52 . 55 . 62 ) of the wiper arm ( 2 ) is releasably connectable via a latching connection or latching and is firmly connected in the assembled state, and that the adapter bracket ( 9 . 21 . 26 . 30 . 37 . 43 . 48 . 54 . 60 ) is designed such that the connecting bolt ( 8th . 42 . 53 ) and thus also the wiper blade ( 1 ) a swinging movement relative to it caused by the curvature of the vehicle window ( 9 . 21 . 26 . 30 . 37 . 43 . 48 . 54 . 60 ) can perform.
Connection device according to claim 1, characterized in that the adapter block ( 9 . 21 . 26 . 30 . 37 . 43 . 48 . 54 . 60 ) a hood-like, the holding device ( 7 . 58 ) enclosing casting from a dimensionally stable material, on the bearing ( 10 . 45 . 56 ) for the connecting bolt ( 8th . 42 . 53 ) are trained.
Connection device according to claim 2, characterized in that the bearings ( 10 . 45 . 56 ) are designed as snap-in receptacles, each with an insertion slot ( 11 . 46 . 57 ) are provided which have an insertion opening on the wiper blade ( 1 ) facing side of the adapter bracket ( 9 . 21 . 26 . 30 . 37 . 43 . 48 . 54 . 60 ) having.
Connection device according to claim 1 or 2, characterized in that the end piece ( 19 . 22 . 24 . 36 . 37 . 43 . 48 . 54 . 60 ) of the wiper arm ( 2 ) the adapter bracket ( 9 . 21 . 26 . 30 . 37 . 43 . 48 . 54 . 60 ) engages positively or essentially positively.
Connection device according to claim 1 or 2, characterized in that the adapter block ( 9 . 21 . 26 . 30 . 37 . 43 . 48 . 54 . 60 ) on its the wiper blade ( 1 ) facing side has a distance to the oscillating movement.
Connection device according to claim 1 or 2, characterized in that the latching connection on the adapter block ( 9 . 21 ) Lugs protruding outwards on both sides ( 16 ) and at the end piece ( 19 . 22 ) of the wiper arm ( 2 ) trained recesses ( 20 ) is formed for this.
Connection device according to claim 6, characterized in that on the outer sides of the adapter bracket ( 21 ) on the locking lugs ( 16 ) opposite side of the connecting bolt ( 8th ) one sliding element each ( 23 ) molded and at the end piece ( 24 ) Gap recesses ( 25 ) are designed for this, and that the adapter bracket ( 21 ) by means of the with the gap recesses ( 25 ) engageable sliding elements ( 23 ) can be brought into the locked position.
Connection device according to claim 1 or 2, characterized in that on the adapter bracket ( 26 ) on the wiper blade ( 1 ) facing away from a twist lock element ( 28 ) is arranged, which with a at the end piece ( 27 ) trained opening ( 29 ) corresponds and that in the closed position the end piece ( 27 ) on the wiper blade ( 1 ) engages behind the opposite side.
Connection device according to claim 1 or 2, characterized in that on the adapter bracket ( 30 ) on the wiper blade ( 1 ) facing away from a spring-elastic tongue ( 31 ) with a snap button ( 32 ) and on the wiper blade ( 1 ) facing side recesses ( 33 ) are arranged so that at the end piece ( 36 ) one with the snap button ( 32 ) corresponding opening ( 35 ) and on the wiper blade ( 1 ) facing inward locking projections ( 34 ) for the recesses ( 33 ) are arranged by a sliding movement of the wiper blade ( 1 ) essentially parallel to the wiper arm ( 2 ) can be brought into engagement with one another in such a way that the end piece ( 36 ) the adapter bracket ( 30 ), and that the locking button ( 32 ) in the locking position in the opening ( 35 ) takes effect.
Connection device according to claim 1 or 2, characterized in that the adapter block ( 37 ) with a stop surface projecting on the end face on the side facing away from the end of the wiper arm ( 38 ) for the end piece ( 39 ) is provided and on both sides there is an outwardly protruding locking lug ( 16 ) has that at the end piece ( 39 ) on the wiper blade ( 1 ) facing side inward projections ( 41 ) for reaching under the adapter bracket ( 37 ) and recesses ( 40 ) for the detents ( 16 ) are arranged by a sliding movement of the wiper blade ( 1 ) essentially parallel to the wiper arm ( 2 ) can be brought into engagement with one another.
Connection device according to claim 1 or 2, characterized in that the connection bolt ( 42 ) on the adapter bracket ( 43 ) protrudes on both sides and is flattened and the adapter bracket ( 43 ) at a distance from the connecting bolt ( 42 ) an outwardly protruding locking lug on each side ( 16 ), the flattening (D) essentially perpendicular to the wiper blade ( 1 ) that the end piece ( 44 ) two snap-in receptacles on the front ( 45 ) for the flattened ends of the connecting bolt ( 42 ) and a gap-shaped recess in each end ( 46 ) for inserting the ends and two locking recesses ( 47 ) for the detents ( 16 ), the thickness of the flattened area (D) being equal or insignificantly greater than the width of the recess ( 46 ) and that the wiper blade ( 1 ) in the locked position with the ends of the connecting bolt ( 42 ) with the snap shots ( 45 ) and with the locking lugs ( 16 ) with the recesses ( 47 ) is engaged, the gap-shaped recess ( 46 ) parallel to the wiper blade ( 1 ) and is arranged at right angles to the flattening (D).
Connection device according to claim 1, characterized in that the adapter block ( 48 ) the holding device ( 7 ) enclosing casting with a cylindrical jacket surface and with a stop surface projecting thereon on the end face on the side facing away from the end of the wiper arm ( 49 ) which is parallel to the wiper blade with its longitudinal axis ( 1 ) is arranged so that two guide grooves (parallel to the axis) 51 ) are designed for a bayonet lock, into each of which one in the end piece ( 52 ) of the wiper arm ( 2 ) arranged guide pin engages, and that the locking position by on the stop surface ( 49 ) arranged spring means ( 50 ) which the end piece ( 52 ) towards the wiper arm ( 2 ) act on.
Connection device according to claim 1 or 2, characterized in that the adapter block ( 54 ) firmly with the holding device ( 7 ) connected and the connecting bolt ( 53 ) protrudes on both sides and parallel to the wiper blade ( 1 ) is flattened and concavely curved relative to it, that the adapter bracket ( 54 ) on the wiper blade ( 1 ) facing away from it and concavely curved in its longitudinal direction, that on both sides of the end piece ( 55 ) an elongated and with the respective projecting end of the connecting bolt ( 53 ) and its curvature corresponding recess ( 56 ) is introduced, on which to insert the end on the end of the wiper arm ( 2 ) side facing the wiper blade ( 1 ) directed gap recess ( 57 ) is formed, and that in the locked position the connecting bolts ( 53 ) in the recess ( 56 ) is arranged to move back and forth and the end piece ( 55 ) on the adapter bracket ( 54 ) lies tiltable.
Connection device according to claim 1, characterized in that the adapter block ( 60 ) on the wiper blade ( 1 ) facing away from a rectangular opening ( 61 ), which with a on the end piece ( 62 ) formed rectangular, but wider opening ( 63 ) corresponds, and that in the locked position of the adapter bracket ( 10 ) with the end piece ( 62 ) in these openings ( 61 . 63 ) a V-shaped, elastically compressible locking element ( 64 ) can be arranged, which with locking rails arranged on the outer sides ( 65 ) the adapter bracket ( 60 ) at the opening ( 61 ) engages under and with stop rails formed on the free leg ends ( 66 ) on the edge of the opening ( 63 ) at the end piece ( 62 ) rests.
Connection device according to claim 6, 7, 10 or 11, characterized in that the latching lugs ( 16 ) on resilient tongues ( 17 ) are designed, and that at the tongue ends handling ( 18 ) are trained.