Windshield wiper with blade lifting mechanism

• US 6,381,799 B1
• Filed: 08/27/2001
• Issued: 05/07/2002
• Est. Priority Date: 11/11/1999
• Status: Expired due to Term

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Leutsch, Wolfgang, Ostrowski, Wolfgang, Boos, Tino
• Primary Examiner(s): Graham, Gary K.
• Application Number:
  US09/869,778
• Time in Patent Office: 253 Days
• Field of Search: 152/501.9, 152/502.02, 152/502.03, 152/503.51, 152/503.52, 152/502.1, 152/503.4, 152/501.6
• US Class Current: 15/250.19
• CPC Class Codes: B60S 1/04 Wipers or the like, e.g. scrapers
• CPC Class Codes: B60S 1/0455 Device for lifting the wipers off the screen in its parking position or at extremes of wipe
• 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

Abstract

The invention is based on a windshield wiper having a wiper arm (10), the mounting part (12) of which sits on a drive shaft (34) supported in a bearing housing (38), and which is connected by way of a hinged arm (46) with a joint part (14) having a wiper bar (16), whereby at least one tension spring (50), one end of which is attached to the mounting part (12) and the other end of which is attached to the joint part (14), preloads the hinged arm, and a setting device having a rocker arm (24) lifts the joint part (14) in a park position completely away from a vehicle windshield (22). The rocker arm (24) is supported in a swing bearing (46) on the mounting part (12), and a ramp (26) attached to the vehicle controls the cooperating end (28) of the rocker arm (24).

Claims

1. A windshield wiper of a cleaning system for a vehicle, said wiper having a wiper arm (10) supporting a wiper blade (18), a mounting part (12) of the wiper arm sits on a drive shaft (34) which is supported in a bearing housing (38) said mounting part is connected by way of a hinge arm (46) with a joint part (14) having a wiper bar (16), whereby at least one tension spring (50), one end of which is attached to the mounting part (12) and the other end of which is attached to the joint part (14), preloads the joint part, and a setting device having an elongated rocker arm (24) lifts the joint part (14) to lift the wiper blade (18) in a park position completely away from a vehicle windshield (22), characterized in that the rocker arm (24) is supported in a swing bearing (46) on the mounting part (12), and a ramp (26) attached to the vehicle controls a cooperating end (28) of the rocker arm (24).

2. Windshield wiper according to claim 1, characterized in that an arm axis (48) of the hinge arm (46) serves to fasten the rocker arm (24).

3. Windshield wiper according to claim 1, characterized in that the ramp (26) is a component of the cleaning system.

4. Windshield wiper according to claim 3, characterized in that the ramp (26) is attached to the bearing housing (38).

5. Windshield wiper according to claim 1, characterized in that the course of the ramp (26) on a wiping system having an extended park position is shaped so that the rocker arm (24) lifts the joint part (14) having the wiper blade (18) away from the vehicle windshield (22) in an extended wiping angle range of the extended park position, which is reached only when the windshield wiper is turned off.

6. Windshield wiper according to claim 1, characterized in that a lifting height (58) of the wiper blade (18) away from the vehicle windshield can be adjusted.

7. Windshield wiper according to claim 6, characterized in that the lifting height (58) of the wiper blade (18) can be adjusted by way of an angle of the rocker arm (24) that includes the ends (28, 30) thereof.