The invention relates to a bushing (30) for a drive unit, in particular an eccentric bushing (30) for a wiper drive of a windshield wiper, having an axial mounting section (32) and a radial flange section protruding therefrom, wherein the bushing (30) can be mounted having the mounting section (32)
The invention relates to a bushing (30) for a drive unit, in particular an eccentric bushing (30) for a wiper drive of a windshield wiper, having an axial mounting section (32) and a radial flange section protruding therefrom, wherein the bushing (30) can be mounted having the mounting section (32) and having the flange section in/on a component, wherein the bushing (30) has a relief channel (322, 342) such that a fluid can flow through the relief channel (322, 342) upon mounting of the bushing (30) in/on the component and/or in a mounted state on/in the component. The invention furthermore relates to a drive unit, in particular a wiper drive for a windshield wiper of a motor vehicle, having a bushing (30) according to the invention.
대표청구항▼
1. A wiper drive (1) for windshield wipers of a motor vehicle, comprising a housing component (1) and an eccentric bushing (3) having an axial mounting section (32) and a radial flange (34) protruding therefrom, wherein the bushing (30) is mounted in the housing component (1), characterized in that
1. A wiper drive (1) for windshield wipers of a motor vehicle, comprising a housing component (1) and an eccentric bushing (3) having an axial mounting section (32) and a radial flange (34) protruding therefrom, wherein the bushing (30) is mounted in the housing component (1), characterized in that the bushing (30) has a relief channel (342) such that a fluid can flow through the relief channel (342), wherein the relief channel (342) is provided in a collar (340) of the flange section (34) facing said mounting section (32), and wherein an annular channel (344) is provided, at a transition from the flange section (34) to the mounting section (32), in one of the collar (340) and the mounting section (32), said annular channel being in fluid connection with the relief channel (342). 2. The wiper drive according to claim 1, wherein a second relief channel (322) is provided in an outer face (320) of the mounting section (32). 3. The wiper drive according to claim 2, wherein the second relief channel (322) is provided in a contact region of the mounting section (32) with the component (1). 4. The wiper drive according to claim 2, wherein the second relief channel (322) runs parallel to a longitudinal axis of the bushing (30) and vents the first space (40) between the bushing (30) and the component (1). 5. The bushing according to claim 2, wherein the second relief channel (322) is provided in a press region (326) of the mounting section (32) with the component (1), and said second relief channel (322) runs substantially parallel to the longitudinal direction of said mounting section (32). 6. The bushing according claim 2, wherein the second relief channel (322) is provided in a press region (326) of the mounting section (32) with the component (1). 7. The bushing according to claim 6, wherein the second relief channel extends across an entire length of the press region. 8. The wiper drive according to claim 1, wherein the mounting section (32) adjacent to the flange section (34) comprises a first press region (324) and a second press region (326) on a free longitudinal end section thereof, said second press region having a smaller diameter than the first press region (324). 9. The wiper drive according to claim 1, wherein the relief channel (342) of the flange section (34) is a capillary relief channel (342), through which a capillary between the collar (340) of the bushing (30) and the component (1) can be drained. 10. The wiper drive according to claim 1, wherein the relief channel (342) is a groove carved out of the material of the bushing (30) or a recess introduced into the material of the bushing (30).
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이 특허에 인용된 특허 (11)
Haar Gerhard (Leinfelden DEX) Jakob Heinz (Bietigheim-Bissingen DEX) Landa Helmut (Brackenheim-Hausen DEX) Mayer Erwin (Kirchheim DEX) Prohaska Hans (Bietigheim-Bissingen DEX) Schneider Theodor (Freu, Electric drive unit.
Lauk Detlef,DEX ; Fischer Ernst,DEX ; Karcher Hansjoerg,DEX ; Herp Juergen,DEX ; Hurst Richard,DEX, Electric drive unit with a bush having different diameters.
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