Window wiper

Patent metadata

Field	Value
Publication number	US-9974420-B2
Application number	US-201515115697-A
Country	US
Kind code	B2
Filing date	Jan 27, 2015
Priority date	Feb 3, 2014
Publication date	May 22, 2018
Grant date	May 22, 2018

Abstract

A window wiper is substantially tee-shaped, having a wiper head and a wiper handle, the wiper head being bent with respect to the wiper handle and the wiper head and the wiper handle delimiting a bending angle. The wiper head and the wiper handle may be connected to each other by a flexible joint, the wiper head and the wiper handle being movable from an initial bending angle to a maximum final bending angle against the spring force of the flexible joint.

First claim

The invention claimed is:

1. A window wiper which is substantially T-shaped, the wiper comprising:
a wiper head;
a wiper handle; and
a flexible joint that interconnects the wiper head and the wiper handle,
wherein the wiper head is arranged offset relative to the wiper handle so as to define an offset angle between the wiper head and the wiper handle,
wherein the wiper head and the wiper handle are configured to be movable from an initial offset angle into a maximum final offset angle against a spring force of the flexible joint,
wherein the wiper head includes a first squeegee lip and a second squeegee lip, the first and second squeegee lips being adjacently spaced from one another and extending parallel to one another,
wherein the first squeegee lip comprises a front squeegee lip in a wiping direction of the wiper, the front squeegee lip being configured as a sealing lip,
wherein the second squeegee lip comprises a rear squeegee lip,
wherein the front squeegee lip defines, with the rear squeegee lip in the wiping direction, a storage space,
wherein the storage space is connected in a flow-conducting manner to a suction device, and
wherein the first squeegee lip includes at least one opening configured to allow accumulated cleaning liquid pass into the storage space.

2. The wiper of claim 1 , wherein the initial offset angle corresponds to a minimum offset angle between the wiper head and the wiper handle.

3. The wiper of claim 1 , wherein the maximum final offset angle is 120° to 175°, the initial offset angle is 95° to 150°, and the initial offset angle is always less than the final offset angle.

4. The wiper of claim 1 , wherein the first and second squeegee lips are disposed on a side of the wiper head remote from the wiper handle.

5. The wiper of claim 4 , wherein the first and second squeegee lips include a flexible rubber material.

6. The wiper of claim 4 , wherein the first and second squeegee lips consist essentially of a flexible rubber material.

7. The wiper of claim 1 , wherein the wiper head includes a suction nozzle, and
wherein the wiper handle includes the suction device and a dirty water tank, both of which are arranged in the wiper handle.

8. The wiper of claim 1 , wherein a ratio of an overall length of the window wiper in cm to the maximum final offset angle in degrees is 0.2 to 0.4.

9. The wiper of claim 8 , wherein a minimum overall length of the wiper is 25 cm.

10. The wiper of claim 1 , wherein the wiper handle has a minimum length of 20 cm.

11. The wiper of claim 1 , wherein the wiper head and/or the wiper handle and/or the flexible joint include a polymeric material.

12. The wiper of claim 1 , wherein the wiper head and the flexible joint or the wiper handle and the joint are respectively configured as a pre-assemblable unit.

13. The wiper of claim 1 , wherein the wiper handle includes, on its side remote from the wiper head, a substantially flat standing surface, the substantially flat standing surface merging into an underside of the wiper handle in an bow-shapedly rounded or beveled manner.

14. The wiper of claim 1 , wherein a minimum overall length of the wiper is 25 cm.

15. The wiper of claim 1 , wherein the wiper head and/or the wiper handle and/or the flexible joint consist essentially of a polymeric material.

Assignees

• Freudenberg Carl Kg

Inventors

• Dietz Markus
• Gibis Karl-Ludwig
• Juergens Ralf

Classifications

• A47L1/06 Primary

  Hand implements (with built-in electric motors A47L1/05) · CPC title

• A47L7/0009

  with means mounted on the nozzle; nozzles specially adapted for the recovery of liquid · CPC title

• A47L7/0023

  Recovery tanks (for cleaning machines A47L11/4013) · CPC title