Wiper device

• US 7,849,553 B2
• Filed: 05/26/2004
• Issued: 12/14/2010
• Est. Priority Date: 07/22/2003
• Status: Expired due to Fees

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Weiler, Michael, Zimmer, Joachim
• Primary Examiner(s): Graham; Gary K
• Application Number:
  US10/564,736
• Publication Number:
  US 20060162115A1
• Time in Patent Office: 2,393 Days
• Field of Search: 152/503.51, 152/503.52, 152/503.4, 152/502.3, 152/502.1, 152/501.9
• US Class Current: 15/250.351
• CPC Class Codes: B60S 1/32 characterised by constructional features of wiper blade arms or blades
• CPC Class Codes: B60S 1/3413 with means for holding the arm off the glass in an intermediate position between the working position and the fully folded back position
• CPC Class Codes: B60S 1/344 Flat-type mounting heads
• CPC Class Codes: B60S 1/3848 Flat-type wiper blade, i.e. without harness

Abstract

The invention concerns a wiper device, in particular for a motor vehicle, comprising a wiper arm (10a-10c, 10k, 10l) including a wiper rod (12a, 12c, 12k) for fixing a wiper blade, a fixing element (14a-14c, 14k, 14l) connected free of articulation to the wiper rod (12a, 12c, 12k) and at least one partial zone (16a-16m) having spring elasticity. It is proposed that the wiper arm (10a-10c, 10k, 10l) can shift essentially elastically from an operating configuration to at least one first stable configuration, wherein the wiper blade can be mounted and dismounted when the wiper arm (10a-10c, 10k, 10l) is in a mounted state.

Claims

1. Wiper device, comprising a wiper arm (10a-10c, 10k, 10l), including:

a wiper rod (12a, 12c, 12k) for fixing a wiper blade;

a fixing element (14a-14c, 14k, 14l) connected free of articulation to the wiper rod (12a, 12c, 12k);

and at least one partial zone (16a-16m) having spring elasticity;

wherein the wiper arm (10a-10c, 10k, 10l) can shift essentially elastically from an operating configuration to at least one first stable configuration, the partial zone including a bistable component (50c-50j, 50m) which comprises at least three elongated sections (40c-40m, 42c, 42f-42m), wherein the wiper blade can be mounted and dismounted when the wiper arm (10a-10c, 10k, 10l) is in a mounted state and wherein the bistable component (50c-50j, 50m) is manufactured by tensioning at least one of the three elongated sections (40c-40m, 42c, 42f-42m).

2. Wiper device according to claim 1, characterized in that, the wiper arm (10a-10c, 10k, 10l) in a demounted state features a second stable configuration varying from the first stable configuration, into which the wiper arm (10a-10c, 10k, 10l) can essentially be shifted in a spring elastic manner.

3. Wiper device according to claim 2, characterized in that, the configurations occurring when shifting the wiper arm (10a-10c, 10k, 10l) from the first into the second stable configuration include the operating configuration.

4. Wiper device according to claim 3, characterized in that, at least one section (40g, 40i-40m, 42d, 42f, 42h) of the spring elastic partial zone (16d, 16f-16m) is under initial tension in at least one stable configuration.

5. Wiper device according to claim 3, characterized by, at least one limit stop (24k, 24l, 26k, 26l), via which a force can be initiated in a targeted manner in the area of the spring elastic partial zone (16k, 26l) during a shifting process between the two configurations.

6. Wiper device according to claim 5, characterized in that, the limit stop (24k, 24l, 26k, 26l) is formed on the fixing element (14k, 14l).

7. Wiper device according to claim 1, characterized in that, at least one section (40g, 40i-40m, 42d, 42f, 42h) of the spring elastic partial zone (16d, 16f-16m) is under initial tension in at least one stable configuration.

8. Wiper device according to claim 1, characterized by, at least one limit stop (24k, 24l, 26k, 26l), via which a force can be initiated in a targeted manner in the area of the spring elastic partial zone (16k, 26l) during a shifting process between the two configurations.

9. Wiper device according to claim 8, characterized in that, the limit stop (24k, 24l, 26k, 26l) is formed on the fixing element (14k, 14l).

10. Wiper device according to claim 1, characterized in that, at least one part of the spring elastic partial zone (16k, 16l) is integrated into the wiper rod (12k) as one piece.