DE7826802U1 - WIPING DEVICE FOR WINDOWS OF MOTOR VEHICLES - Google Patents

Description

s R.l + 962

August 25, 1978 Sat / Sm

ROBERT BOSCH GMBH, 7OOO Stuttgart 1 |

Wiper device for windows of motor vehicles

State of the art 1

The invention is based on a wiper device according to |

ν "^ of the genre of the main claim. It is already a wipe |

known device in which the plastic pressure |

body made of two hingedly connected parts |

consists. The parting line leads through a receptacle |

for the wiper arm, which is in this when the i

Plastic pressure body is inserted. After the zu- ';

folding up the plastic pressure body parts is f

the plastic pressure body firmly on the wiper arm f

occas-c. This type of attachment is complex because '

next to the joint between the two plastic press-on |

body parts also have locking means |

must be, which prevent unintentional unfolding |

prevent the plastic pressure body parts. :

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V. 1 R. ί t ► * 1978 Sat / Sm 4 I * (»« t 25.8. * ι »·

ROBERT BOSCH GMBH, 7OOO Stuttgart 1

Wiper device for windows of motor vehicles Summary

A device is proposed which is used to wipe motor vehicle windows. The wiper device includes a wiper blade provided with a wiper arm Γ to which a plastic pressure member arranged

is. The plastic pressure body is used to increase the contact pressure of the wiper blade on the windshield to be wiped; especially at high speeds. The plastic pressure body has a groove-shaped receiving channel whose cross-sectional dimensions correspond to Cross-section of the wiper arm are adapted. The plastic pressure body is also elastic at the groove opening provided deflectable latching hooks, which with the surface facing away from the base of the receiving channel of the wiper arm cooperate.

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Advantages of the invention

The wiper device according to the invention with the characterizing features of the main claim has on the other hand the advantage that a secure attachment of the plastic pressure body to the wiper arm in a simple manner is achieved, which can be solved again easily.

) The measures listed in the subclaims are advantageous developments and improvements the wiper device specified in the main claim possible.

Drawing

Embodiments of the invention are shown in the drawing and explained in more detail in the description below. FIG. 1 shows a view of a wiper arm provided with a wiper blade and a plastic pressure body, FIG. 2 shows a section through the plastic, material pressure body and the wiper arm along the "

Line II-II in Figure 1, Figure 3 along a section the line III-III in Figure 1 and Figure 4 is a section along the line III-III through a different version of the plastic pressure body.

Description of the invention

A wiper device 10 shown in FIG. 1 has a wiper arm 12 with a free end 14 at its free end Wiper blade 16 is attached. The wiper arm 12 is provided with a plastic pressure body 18. How out Figures 2 to 4 can be seen, the art

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fabric pressure body 18 essentially the profile of a wing. By arranging a pressure body on the wiper arm, as is generally known, the tendency of the wiper blade to lift off the windshield to be wiped, which occurs particularly at high driving speeds, is overcome and the contact pressure is kept in the required range. For fastening of the plastic press body that has a groove-shaped receiving channel 22, whose transverse ') cut the cross section of the wiper arm 12 is adapted. At its mouth edge of the groove-shaped receiving channel 22 facing away from the base 24, the plastic pressure body 18 made of an elastic material is provided with four detent hooks 28 which can be deflected in the direction of the arrows and which with the one facing away from the base 24 of the receiving channel 22

Cooperate surface of the wiper arm 12 (Figure 2).

To fasten the plastic pressure body 18 to the wiper arm 12, the latching hooks 28 are in Direction of arrows 26 deflected so that the wiper

_m arm 12 can get into the receiving channel 22. If the

^ψ - ^v - wiper arm 12 on the base 24 of the receiving channel

22 rests, the latching hooks 28 snap into the in FIG

t 2 position shown and secure the plastic pressure

body 18 on the wiper arm 12 against unintentional loosening.

So that the plastic pressure body 18 is fixed in the longitudinal direction of the wiper arm 12, the wiper arm at least one recess 30 into which a Projection 32 protrudes (Figure 3)

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According to another embodiment of the invention shown in FIG. 4, the projection 32 protrudes with a section on the surface of the wiper arm 12 facing away from the base surface 24 of the receiving channel 22 the recess 30 and is deformed there like a rivet head. This rivet head shown in phantom in FIG 36 can, for example, by a tool as well as by the supply of heat and / or by use formed by ultrasound.

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Claims (5)

• r t R. I + 962 August 25, 1978 Sa / Sm ROBERT BOSCH GMBH, 7OOO Stuttgart 1 claims 1. Wiper device for windows of motor vehicles, with a wiper arm and a wiper blade attached to it and with a plastic Andruekkörper angeord- $ i , characterized in that the plastic Andruekkörper (18) has a groove-shaped receiving channel (22) for the wiper arm (12) which is partially overlapped by at least one elastically deflectable latching hook (28) which is connected to the pressure body (18) and which interacts with the surface of the wiper arm (12) facing away from the base (24) of the receiving channel (22) will. «« 4 · 1 · πα ■ right - 2 - R. Ι1962 Sat / Sm 2. Wiper device according to claim I _3, characterized in that the pressure body (18) made of an elastic plastic and the latching hook (28) is integrally connected to the pressure body (18). 3. Wiper device according to one of claims 1 or 2, • s. characterized in that the plastic pressure body (18) preferably has four locking hooks (28) lying opposite one another in pairs with respect to the receiving channel (22) . 4. Wiper device according to one of claims 1 to, characterized in that from the base (24) of the receiving channel (22) from at least one projection molded onto the plastic pressure body (18) (32) protrudes into a recess (30) in the wiper arm (12). 5. Wiper device according to claim 4, characterized in that that the projection (32) on the surface facing away from the base surface (24) of the receiving channel (22) of the wiper arm (12) protrudes with an end section (34) from the recess (30) and that this end section (34) is deformed like a rivet head.