Water blocker for wiper system

• US 8,234,746 B2
• Filed: 09/22/2008
• Issued: 08/07/2012
• Est. Priority Date: 09/22/2008
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH, Robert Bosch LLC (Robert Bosch GmbH)
• Original Assignee: Robert Bosch GmbH
• Inventors: Lutterodt, Herbert, Wood, Christopher
• Primary Examiner(s): Graham, Gary
• Application Number:
  US12/235,085
• Publication Number:
  US 20100071147A1
• Time in Patent Office: 1,415 Days
• Field of Search: 152/503, 152/503.1, 152/502.7, 152/500.01, 137/312, 137/351, 137/354
• US Class Current: 15/250.3
• CPC Class Codes: B60S 1/0427 characterised by the attachment of the wiper motor holder to the transverse element
• CPC Class Codes: B60S 1/0433 Attachement of a wiper modular assembly to the vehicle
• CPC Class Codes: B60S 1/0491 Additional elements being fixed on wipers or parts of wipers not otherwise provided for, e.g. covers, antennae or lights
• CPC Class Codes: Y10T 137/5762 With leakage or drip collecting
• CPC Class Codes: Y10T 137/6892 Floor or frame
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A wiper system for a vehicle includes a frame supported by the vehicle and a wiper motor supported by the frame. The wiper system further includes a wiper arm coupled to the wiper motor and configured to be driven by the wiper motor to move in a reciprocating pattern. A water blocking member is wrapped around a portion of the frame to prevent water running along the frame from reaching the wiper motor. The blocking member is flexible and has separate free ends to enable assembly with the frame. A method of assembling the wiper system includes pressing the water blocker onto the frame at a location away from spaced apart ends of the frame.

Claims

1. A wiper system for a vehicle, the wiper system comprising:

a frame supported by the vehicle;

a wiper motor supported by the frame;

a wiper arm coupled to the wiper motor and configured to be driven by the wiper motor to move in a reciprocating pattern; and

a blocking member wrapped around a portion of the frame to prevent water running along the frame from reaching the wiper motor, the blocking member being flexible and having separate free ends to enable assembly with the frame, wherein the blocking member wraps at least 360 degrees around the frame,

wherein the blocking member wraps around the frame in a helical pattern.

2. The wiper system of claim 1, wherein the blocking member has a substantially L-shaped cross-section including a first portion lying flat against the frame and a second portion extending outwardly away from the frame to direct water off of the frame.

3. The wiper system of claim 1, wherein the frame includes a beam having a pair of spaced apart ends, each end defining a mounting portion that is fixed to the vehicle, and wherein the wiper motor is supported by the beam.

4. The wiper system of claim 3, wherein the wiper motor is supported at a generally intermediate position along the beam, the blocking member being wrapped around the beam on a first side of the wiper motor and a second blocking member being wrapped around the beam on a second side of the wiper motor opposite the first side.

5. The wiper system of claim 1, wherein the portion of the frame upon which the blocking member is wrapped has a generally cylindrical outer surface, and the blocking member has a complementary inner surface to receive the generally cylindrical outer surface.

6. The wiper system of claim 1, wherein the blocking member is plastic.

7. A wiper system for a vehicle, the wiper system comprising:

a frame supported by the vehicle;

a wiper motor supported by the frame;

a wiper arm coupled to the wiper motor and configured to be driven by the wiper motor to move in a reciprocating pattern; and

a blocking member wrapped around a portion of the frame to prevent water running along the frame from reaching the wiper motor, the blocking member being flexible and having separate free ends to enable assembly with the frame, wherein the blocking member wraps at least 360 degrees around the frame,

wherein the blocking member wraps about 720 degrees around the frame.

8. A wiper system for a vehicle, the wiper system comprising:

a frame supported by the vehicle, the frame including a beam having a generally cylindrical outer surface and spaced-apart ends;

a wiper motor supported by the frame at an intermediate position along the beam;

a wiper arm coupled to the wiper motor and configured to be driven by the wiper motor to move in a reciprocating pattern; and

a resilient blocking member wrapped around a portion of the beam between a first of the spaced-apart ends and the wiper motor to prevent water running along the beam from reaching the wiper motor, the blocking member having separate free ends to enable assembly with the beam, the blocking member being wrapped in a generally helical pattern at least 360 degrees around the beam.

9. The wiper system of claim 8, further comprising a second resilient blocking member wrapped around a portion of the beam between a second of the spaced-apart ends and the wiper motor, the second blocking member being substantially identical to the first blocking member.

10. The wiper system of claim 9, wherein the first and second resilient blocking members are spaced apart not more than about 70 millimeters.

11. The wiper system of claim 8, wherein the blocking member is wrapped about 720 degrees around the beam.

12. The wiper system of claim 8, wherein the blocking member has a substantially L-shaped cross-section including a first portion lying flat against the beam and a second portion extending outwardly away from the beam to direct water off of the beam.

13. A wiper system for a vehicle, the wiper system comprising:

a frame supported by the vehicle;

a wiper motor supported by the frame;

a wiper arm coupled to the wiper motor and configured to be driven by the wiper motor to move in a reciprocating pattern; and

a blocking member wrapped around a portion of the frame to prevent water running along the frame from reaching the wiper motor, the blocking member being flexible and having separate free ends to enable assembly with the frame, wherein the blocking member wraps at least 360 degrees around the frame,

wherein the blocking member wraps greater than 360 degrees around the frame.

14. A wiper system for a vehicle, the wiper system comprising:

a frame supported by the vehicle;

a wiper motor supported by the frame;

a wiper arm coupled to the wiper motor and configured to be driven by the wiper motor to move in a reciprocating pattern; and

a blocking member wrapped around a portion of the frame to prevent water running along the frame from reaching the wiper motor, the blocking member being flexible and having separate free ends to enable assembly with the frame, wherein the blocking member wraps at least 360 degrees around the frame,

wherein the separate free ends of the blocking member are located at separate positions along the frame.