Wiper blade having floating suppressing structure

• US 4,766,636 A
• Filed: 09/10/1987
• Issued: 08/30/1988
• Est. Priority Date: 09/13/1986
• Status: Expired due to Fees

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Shinpo, Yuji
• Primary Examiner(s): Feldman, Peter
• Application Number:
  US07/094,778
• Time in Patent Office: 355 Days
• Field of Search: 15/250.2, 15/250.35-250.42
• US Class Current: 15/250.201
• CPC Class Codes: B60S 1/3806 Means, or measures taken, for influencing the aerodynamic quality of the wiper blades

Abstract

Herein disclosed is a wiper blade which is constructed to suppress or at least minimize undesirable wiper blade floating phenomemon which would occur during high speed cruising of a vehicle in the rain. The wiper blade comprises a main lever detachably connected to a wiper arm and having a longitudinally extending ridge portion, sub-levers aligned along the main lever and pivotally connected to the same, and an elongate blade rubber held by the sub-levers and extending along the main lever. The main lever is formed with a substantially flat wall which extends from one side of the ridge portion toward the blade rubber to such a degree as to partially cover the same, and the ridge portion is formed with a plurality of openings.

Claims

1. A wiper blade adapted to be fixed to a wiper arm, comprising:

a main lever detachably connected to said wiper arm and having a longitudinally extending ridge portion;

sub-levers aligned along said main lever and pivotally connected to the same;

an elongate blade rubber held by said sub-levers and extending along said main lever;

first means providing said main lever with a substantially flat wall which extends from one side of said ridge portion toward said blade rubber to such a degree as to partially cover or cancel the same in an overlapping manner; and

second means providing said ridge portion with a plurality of openings.

2. A wiper blade as claimed in claim 1, in which said flat wall is integral with said ridge portion.

3. A wiper blade as claimed in claim 2, in which said flat wall extends from said ridge portion at substantially right angles.

4. A wiper blade as claimed in claim 3, in which said ridge portion is formed at the other side thereof with a flange which extends in the same direction as said flat wall.

5. A wiper blade as claimed in claim 4, in which said flat wall has a lower part bent in a direction away from said blade rubber, and in which said lower part has a flange which extends toward said blade rubber.

6. A wiper blade as claimed in claim 4, in which said flat wall has a size to sufficiently conceal the sub-levers.

7. A wiper blade as claimed in claim 6, in which each of said sub-levers is formed at a ridge portion thereof with aligned openings.

8. A wiper blade as claimed in claim 4, in which said flat wall of said main lever has a size to partially conceal the sub-levers.

9. A wiper blade as claimed in claim 8, in which said flat wall of the main lever conceals the inside positioned sub-levers having the outside positioned ones exposed to the open air.

10. A wiper blade as claimed in claim 9, in which each of said outside positioned sub-levers comprises:

a longitudinally extending ridge portion;

a substantially flat wall extending at substantially right angles from one side of said ridge portion toward said blade rubber to such a degree as to partially cover the same; and

a flange extending at substantially right angles from the other side of said ridge portion toward said blade rubber.

11. A wiper blade as claimed in claim 10, in which said ridge portions of the outside positioned sub-levers are formed with openings, respectively.

12. A wiper blade as claimed in claim 9, in which selected ones of said sub-levers are formed on said ridge portions with respective wings which are inclined toward an imaginary plane which includes said flat wall of said main lever.

13. A wiper blade as claimed in claim 9, in which all of the outwardly exposed sub-levers are formed at the ridge portions thereof with respective wings which are inclined toward an imaginary plane which includes a flat wall of said main lever.

14. A wiper blade as claimed in claim 12, in which an angle of said wing relative to the ridge portion is within a range from 30 degrees to 90 degrees.

15. A wiper blade as claimed in claim 1, in which said sub-levers comprise:

two secondary levers which are pivotally connected to spaced portions of said main lever; and

four tertiary levers, each two being pivotally connected to spaced portions of one of said secondary levers.