DE8119737U1 - WIPING DEVICE FOR WINDOWS OF MOTOR VEHICLES - Google Patents

Description

9.6.1981 ^J Sa / Kc

ROBERT BOSCH GMBH, 7000 Stuttgart 1

Wiper device for windows of motor vehicles

{ "} State of the art

The invention is based on a wiper device according to the preamble of the main claim. It is such a wiper device known, in which two aligned pivot pin stubs on the mutually facing surfaces of mutually parallel and spaced apart, elastically deflectable walls of the wiper arm are attached. The wiper blade has a transverse bore into which the two journal stubs can be locked. At this The arrangement overlaps the wiper arm over the wiper blade; builds higher than necessary and results in an unattractive over-. \ passage between the wiper arm and the wiper blade.

Advantages of the invention

The wiper device according to the invention with the characterizing features of the main claim has the advantage that with a simple design, due to the adjacent wiper parts, a particularly low design is obtained, which can be better integrated optically into the vehicle body.

I By the measures listed in the subclaims

I are advantageous further developments and improvements of the

t specified in the main claim wiper device possible.

I drawing

I embodiments of the invention are shown in the drawing

ρ and in more detail in the following description

% explained. Figure 1 shows a with a wiper device

4 device equipped cover disc of a motor vehicle light

I in view j Figure 2 the articulated connection between the wiper

t N arm and wiper blade in an enlarged, isometric view

fi Explosionsdarscellung, Figure 3 is a partial section through the !

I assembled joint connection, compared to Figure 2

|: shown enlarged, figure k a bottom view of the wiper

^I arms and a top view of the wiper blade according to Figure 2, Ι Figure 5 is a partial section through the wiper blade along the I line - ', VV in Figure k ,' in an enlarged view and Fig.

f gur 6 shows a differently designed wiper arm in isometric

¥ representation.

I Description of the exemplary embodiments

f v. In Figure 1 is a section of a motor vehicle body

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f shown, which is a cover plate 10 for a motor vehicle

I lamp has. The cover 10 is a wiper

I assigned direction 12, which is driven by a pendulum Wiper arm 1U and one at its free end 16 articulated attached wiper blade 18 is provided. The design of the articulated connection is detailed in FIGS

- shown. According to a first, shown in FIG

} ■. Execution, is at the free end 16 of the wiper arm 1 h

I arranged laterally projecting approach 20, which

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1 I ■ · 1

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is located approximately in a plane which is parallel to the window 10 to be wiped. On the side of the projection 2.O facing the disk 10, a pivot pin 2k is connected to the projection via a web 22. The web 22 is narrower than the diameter of the pivot pin 2k and extends parallel to the longitudinal axis of the pin. Since the wiper arm iff · is made of a plastic, the extension 20 of the wiper arm 1 k merges in one piece into the web 22, which in turn is integrally connected with the pivot pin 2 ^ or with its outer surface. In FIG. 2 there is also one belonging to the wiper blade 18, made of an elastic one

Γ Plastic-made frame part 26 is shown, which is provided with a transverse bore 28, the diameter of which is matched to the diameter of the pivot pin 2k. The transverse bore 28 is open at the top via a longitudinal slot 30. As shown in particular in FIG. 3, when the wiper device 12 is installed, the web 22 lies in the longitudinal slot 3O of the frame part 26 mounted wiper device 12 comes to lie in a transverse slot 3k of the pivot pin 2k. As FIG. 3 shows, the transverse bore 28 is lined with a metal bush 36 and the pivot pin is 2k

^ provided with a metal jacket 38 so that good mobility in the joint 2k, 28 is achieved.

In order to connect the wiper blade 18 to the wiper arm "\ k , the wiper arm with its pivot pin 2k is placed on the longitudinal slot 30 of the transverse bore 28 and pressed downward in the direction of the arrow k0. While the longitudinal slot 30 is temporarily widened, the pivot pin 2k now engages in the transverse bore 28, the transverse wall 32 engaging in the transverse slot 3k

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lU facing side wall ^ 2 of the transverse slot 3 ¹ »forms together with the adjacent wall surface kk of the transverse. wall 32 a security - stop shoulder and counter shoulder against lateral migration of the pivot pin 2 ^ out of the transverse bore 28. On the other side, the wiper blade is secured by the free end 16 of the wiper arm 11 *.

According to a second embodiment shown in Figure 6, a tab k6 is also conceivable to be arranged at the free end of the extension 20, the distance i + 8 from the wiper arm 11H is adapted to the width 50 of the frame part 26 and which forms a stop shoulder for securing the wiper blade on the wiper arm .

As can be seen in particular from FIG. 3, the dimension 52 from the side 5 ^ of the projection 20 facing away from the pivot pin 2U is approximately as large as the dimension 56 from the area of the transverse bore 28 opposite the longitudinal slot 30 to the upper side 58 of the wiper blade frame part 26 is achieved, that the wiper arm h 1 and the free end 16 is integrated together with its lateral projection 20 in the contour of the frame part 26th The frame part 26 is provided for this purpose in the region of the projection 20 with a recess 60 whose base surface is curved in accordance with the distance from the pivot axis 2U, so that an adequate swivel angle between the wiper blade 18 and wiper arm h 1 is enabling.

As FIG. 6 shows, the arrangement of ribs U3 ;. a stiffening of the arm can be achieved on the wiper arm 11 ^.

As FIG. 1 shows in particular, when the wiper device 12 is installed, the wiper arm 1U lies next to the wiper blade 18 so that a particularly flat design of the wiper device 12 is achieved.

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9.6.1981 Sa / Kc

ROBERT BOSCH GMBH, TOOO Stuttgart 1

Wiper device for windows of motor vehicles

( ) Summary

A device is proposed which is used for wiping the windows of motor vehicles. The wiper device comprises a driven wiper arm made of plastic, at the free end of which a wiper blade is articulated. For this purpose, the wiper arm has an attachment which is arranged approximately parallel to the window and to which a pivot pin is connected via a web. The web is arranged on the lateral surface of the pin, parallel to its longitudinal axis, and is designed to be narrower than the pin diameter. The wiper blade has a frame part made of an elastic plastic _Λ in which there is a transverse bore assigned to the pin, which has a longitudinal slot ZM in which the pin web lies when the wiper blade is hinged to the wiper arm. The longitudinal slot is located on the side of the frame part facing away from the pane. The pivot pin can be introduced into the transverse bore with a temporary widening of the longitudinal slot.

Claims (1)

«I» 111 IS Ur! ig « Ί ι ι οι · «ι · O) ₁ ι 0 I · ·. »· T ^{1 lJ} '00 · I »« II 9.6.1981 Sa / Kc ROBERT BOSCH GMBH, 7000 Stuttgart 1 Expectations 1. Wiper device for windows of motor vehicles, in particular Cover panels for motor vehicle lights, with a wiper blade displaceable over the window and a driven wiper blade connected to the wiper blade in an articulated manner Wiper arm, preferably made of plastic, on which one belonging to the articulated connection, transversely to the longitudinal extension The hinge pin arranged on the wiper arm is arranged and the wiper blade receives the hinge pin Has position recess, characterized in that the wiper arm (1U) at least approximately one has parallel to the wiping disc (10) projecting plate-shaped extension (20) with which the pivot pin (2 ^) connected to its outer surface via a web (22) which is narrower than the diameter of the pivot pin (2U) and that a wiper blade (18) belonging, A frame part (26) made of an elastic material and having a pivot pin (2U) assigned to it Transverse bore (28) is provided, which via a longitudinal slot (30) in which the web (22) comes to lie to the 714 1 ^Λ , 1 ■ · ■ ^ •> Il 1 lilt 1 · I »li ι) ι 1 · I I I I 1 > 1 I. side of the wiper blade frame part facing away from the window (10) (26) is open. 2. Wiper device according to claim 1, characterized in that both the wiper arm {^ h) and the wiper blade frame part (26) each have at least one mutually interacting, opposite stop shoulder (i + 2 or kC or kk) , the connection - (J) impact shoulder (k2 or h6) of the wiper arm (1 k or 11U) is arranged at a distance from it and faces it. 3. Wiper device according to claim 2, characterized in that the stop shoulder (1 * 2 or k6) of the wiper arm (1U or III ·) is connected to the wiper arm (lh) via the extension (20). '' / '\ "U. wiper device according to claim 3, characterized in that the stop shoulder {h2) passes through a transverse slot (3k) I- is formed in the pivot pin (2k) . 5. Wiper device according to one of claims 2 to h, characterized in that the counter shoulder (kk) of the wiper blade through the one wall surface (kk) of a preferably opposite the longitudinal slot (30) of the transverse bore (28) is attached. arranged transverse wall (32) is formed. 6. Wiper device according to one of claims 1 to 5 j, characterized in that the dimension (52) from the pivot pin (2 * 0 applied side of the extension (20) to the extension (20) applied jacket area of the pivot pin {2h) , corresponds approximately to the dimension (56) from the area of the transverse bore (28) opposite the longitudinal slot (30) to the upper side (58) of the wiper blade frame part (26). T. wiper device according to one of claims 1 "to 6, characterized characterized in that the transverse bore (28) is lined with a metal sleeve (36). 8. Wiper device according to one of claims 1 to 7 _S, characterized in that the pivot pin {2k) has a metal jacket (38). 9. Wiper device according to one of claims 1, 2 or 6 to 8, characterized in that the stop shoulder at the end of the extension (20) applied by the wiper arm (11U) through the wall facing the wiper arm (1 1 k ) on the extension (20) arranged tab (! +6) is formed, the distance (U8) of which from the wiper arm (11U) of the width (50) of the wiper blade frame part (26) in the area of the transverse bore 28 I ·· fill lift III! Il 1 O 0-ti- ·> · · ■ I OB I) Ol 10. Wiper device according to one of claims 1 to 9, characterized in that the wiper arm with reinforcing ribs is provided, which preferably form the parallel legs of a U-cross section ".