Yoke member connecting device in windshield wiper

• US 4,795,288 A
• Filed: 07/29/1987
• Issued: 01/03/1989
• Est. Priority Date: 07/31/1986
• Status: Expired due to Term

• Current Assignee: Nippon Wiper Blade Company Limited (DENSO Corporation)
• Original Assignee: Nippon Wiper Blade Company Limited (DENSO Corporation)
• Inventors: Sakai, Masao
• Primary Examiner(s): Kundrat, Andrew V.
• Application Number:
  US07/079,160
• Time in Patent Office: 524 Days
• Field of Search: 403/161, 403/24, 403/153, 403/154, 403/162, 15/250.42, 15/250.35, 15/250.32, 411/514
• US Class Current: 15/250.46
• 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 2001/3815 chacterised by the joint between elements
• CPC Class Codes: F16B 19/004 made in one piece F16B21/084 takes precedence
• CPC Class Codes: F16C 11/02 Trunnions; Crank-pins fastening crank-pins to webs, crank-pins integral with cranks F16C3/06, F16C3/22
• CPC Class Codes: F16C 2326/09 Windscreen wipers, e.g. pivots therefore
• CPC Class Codes: Y10T 403/32885 Expanded pin or end
• CPC Class Codes: Y10T 403/32951 Transverse pin or stud

Abstract

A device for connecting pivotally two yoke members of a windshield wiper. Each yoke member has a cross-section including two generally vertical side walls and a top wall connecting the upper ends of the side walls, and the yoke members are overlappingly disposed relative to each other. The device comprises a pivot pin passing through aligned openings in the side walls of the two yoke members, and the pivot pin is divided into plural portions in the cross-section thereof at the location inner side of the side walls of inner yoke member, with the plural portions being separated from one another in the radially outward directions thereby forming a large diameter portion.

Claims

1. In combination, first and second yoke members of a windshield wiper, each yoke member having a cross-section including generally vertically extending side walls and a generally horizontally extending top wall connecting the upper ends of the side walls, with the side walls of said second yoke member being located inside the side walls of said first yoke member and the respective side walls having holes therein aligned with corresponding holes in the other side walls, and a device for pivotally connecting said first and second yoke members and being constituted by a pivot pin extending through the aligned openings in the side walls of said first and second yoke members, said pivot pin having the cross-section extending between the side walls of the second yoke member divided into a plurality of portions which are separated from one another in the radially outward direction for forming a large diameter portion which tightly engages with the inner circumference of said aligned openings in the side walls of said second yoke member, thereby preventing movement of said pivot pin in the axial directions, and the opposite ends of said pivot pin being substantially flush with the outer surfaces of the side walls of said first yoke member.

2. The combination as set forth in claim 7, wherein said plurality of portions are two semicircular portions.

3. The combination as set forth in claim 7, wherein said plurality of portions are four quarter-circle portions.

4. The combination as set forth in claim 7, wherein said plurality of portions cooperate to form a circle the diameter of which being substantially equal to that of the remaining portion of the pivot pin when said portions are displaced toward each other.

5. The combination as set forth in claim 7, wherein said pivot pin is formed of a resilient material.