Foldable, adjustable length windshield wiper frame structure

• US 5,233,721 A
• Filed: 06/18/1992
• Issued: 08/10/1993
• Est. Priority Date: 06/18/1992
• Status: Expired due to Fees

• Current Assignee: Kuo-Ching Chen
• Original Assignee: Ming-Tung Yang
• Inventors: Yang, Ming-Tung
• Primary Examiner(s): Hornsby, Harvey C.
• Assistant Examiner(s): Graham, Gary K.
• Application Number:
  US07/900,459
• Time in Patent Office: 418 Days
• Field of Search: 15/250.41, 15/250.42, 15/250.39, 15/250.13, 15/250.31, 15/250.36, 15/250.23
• US Class Current: 15/250.39
• 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 2001/3813 chacterised by a support harness consisting of several articulated elements
• CPC Class Codes: B60S 2001/3815 chacterised by the joint between elements

Abstract

A windshield wiper frame structure is disclosed in which the wiper frame structure can be folded and its length adjusted to multiple sizes. A main frame has hinged portions which enable the main frame to be compactly folded for storage and transportation. In use, links, which support a pair of wiper blades are adjustably attached to the main frame to permit adjustment of the wiper structure length. Additional adjustment may be provided by adjustably attaching blade holders to each link.

Claims

1. An adjustable length windshield wiper structure comprising:

a) a main frame member adapted to be attached to a wiper arm said main frame comprising;

i) an elongated first ink member;

ii) an elongated second link member;

iii) hinge means pivotally connecting the first and second link members together so as to enable the first and second link members to be moved between a first position in which the first and second link members are generally collinear with each other and a second position wherein the first and second link members are generally parallel to each other; and

,

iv) releasable latch means operatively associated with the first and second link members to releasably latch them in their first position;

b) first and second links;

c) attachment means to attach the first and second links to the first and second link members, respectively, such that a position of at least one link is adjustable along the longitudinal length of at least one of the first and second link members;

d) first and second wiper blades; and

,

e) mounting means to mount the first and second wiper blades on the first and second links respectively.

2. The adjustable length windshield wiper structure of claim 1 wherein the attachment means comprises means to adjustably attach the first and second links to the first and second link members such that positions of both first and second links are adjustable along a length of the main frame member.

3. The adjustable length windshield wiper structure of claim 1 wherein the mounting means for each wiper blade comprises:

a) first and second strip holders adapted to hold a single wiper blade and,

b) second attachment means to attach the first and second strip holders to the respective link such that the respective position of at least one of the first and second strip holders is adjustable along a length of a link.

4. The adjustable length windshield wiper structure of claim 3 wherein the second attachment means comprises means to adjustably attach the first and second strip holders to a link such that positions of both the first and second strip holders are adjustable along a length of the link.