WINDSHIELD WIPER FOR VEHICLES

• US 3,665,544 A
• Filed: 08/24/1970
• Issued: 05/30/1972
• Est. Priority Date: 12/27/1969
• Status: Expired due to Term

• Current Assignee: Kashira Sakamoto
• Original Assignee: Kashira Sakamoto
• Inventors: Sakamoto, Kashira
• Primary Examiner(s): Feldman, Peter
• Application Number:
  US05/066,294
• Time in Patent Office: 645 Days
• Field of Search: 15/250.42,250.15,250.2,250.21,250.32,250.34,250.35,250.36,250.33
• US Class Current: 15/250.32
• CPC Class Codes: B60S 1/3409 the wiper arms consisting of two or more articulated elements
• CPC Class Codes: B60S 1/3801 characterised by a blade support harness consisting of several articulated elements B60S1/3803, B60S1/3806 take precedence
• CPC Class Codes: B60S 1/3806 Means, or measures taken, for influencing the aerodynamic quality of the wiper blades
• CPC Class Codes: B60S 1/4038 for arms provided with a channel-shaped end
• CPC Class Codes: B60S 1/4064 the channel-shaped end being provided with protrusions on, or holes in, the side walls to create a pivot
• CPC Class Codes: B60S 2001/3812 Means of supporting or holding the squeegee or blade rubber

Abstract

In a windshield wiper for vehicles, yoke members are directly fixed to an arm. At least one of the yoke members comprises two sections between which is loaded a spring so as to normally bias the two sections and therefore a blade toward the windshield. Alternatively, a spring may be loaded between the arm head and arm piece which may comprise two bar-shaped members. Even when the windshield is curved, the blade may be uniformly pressed against it. A number of pivotal connection members is reduced so that less noise is produced. Since a number of components is reduced, the assembly is much facilitated at less cost.

Claims

1. A windshield wiper comprising a blade made of an elastic material, two separate yoke members for supporting said blade, and an arm member, each of said yoke members being directly, pivotably and removably attached at two different points on the arm member.

2. A windshield wiper as defined in claim 1 wherein a yoke member remote from the tip of the arm member is divided into two sections between which is loaded a spring so as to normally bias said two sections of said yoke member toward the windshield.

3. A windshield wiper as defined in claim 1 wherein a part of the cross-sectional cOnfiguration of said arm member is so inclined that the blade is biased toward the air flow produced when a vehicle travels.

4. A windshield wiper as defined in claim 1 wherein said arm member comprises an arm head, a retainer pivotably fixed to said arm head and an arm piece fixed to said retainer.

5. A windshield wiper as defined in claim 4 wherein said arm piece comprises two solid wires having circular cross-sections.

6. A windshield wiper as defined in claim 4 wherein said arm piece is rotatably fixed to said retainer, and a tension spring is loaded between said arm head and said arm piece so that said blade may be pressed against the windshield under the force of said spring.