GB2344753A - Improvements relating to claw head retention on wiper blades - Google Patents

Improvements relating to claw head retention on wiper blades Download PDF

Info

Publication number
GB2344753A
GB2344753A GB9929612A GB9929612A GB2344753A GB 2344753 A GB2344753 A GB 2344753A GB 9929612 A GB9929612 A GB 9929612A GB 9929612 A GB9929612 A GB 9929612A GB 2344753 A GB2344753 A GB 2344753A
Authority
GB
United Kingdom
Prior art keywords
end cap
blade rubber
flanges
claw head
wiper
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB9929612A
Other versions
GB9929612D0 (en
GB2344753B (en
Inventor
Dean Cubitt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trico Products Corp
Original Assignee
Trico Products Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Trico Products Corp filed Critical Trico Products Corp
Publication of GB9929612D0 publication Critical patent/GB9929612D0/en
Publication of GB2344753A publication Critical patent/GB2344753A/en
Application granted granted Critical
Publication of GB2344753B publication Critical patent/GB2344753B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S1/3801—Wiper blades characterised by a blade support harness consisting of several articulated elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/32—Wipers or the like, e.g. scrapers characterised by constructional features of wiper blade arms or blades
    • B60S1/38—Wiper blades
    • B60S2001/3812—Means of supporting or holding the squeegee or blade rubber
    • B60S2001/3822—Means of supporting or holding the squeegee or blade rubber characterised by additional means to prevent longitudinal sliding of squeegee in support, e.g. clips

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insulating Bodies (AREA)

Abstract

An end cap 6 (closed at one end) fits over the interengagement of a claw head 2 with a blade rubber 5. The end cap 6 has an opening 7 in the top wall to receive the upper portion of the claw head 2. The claws 3 are housed in an opening 9 formed in the lower wall of the end cap 6 and locate within grooves 4 formed in the sides of a wiper blade rubber 5. The lower face of the end cap 6 also incorporates an elongated slot 11 which is received within the grooves 4 in the blade rubber 5. Barbs 12 help to retain the end cap onto the blade rubber 5 so as to resist rearward displacement of the blade rubber 5 with respect of the end cap 6.

Description

"Improvements relating to Claw Head Retention on Wiper Blades" There can be a tendency for a wiper blade held by claws at the ends of parts of a wiper blade harness to slide laterally with respect to the harness and thus become detached from the claws.
According to the present invention there is provided an end cap for a wiper blade, the end cap being of generally Ushaped cross section, but with inturned flanges at the base to fit into grooves in a blade rubber, one end of the cap being open to receive the blade rubber with a strengthening vertebra and the other end being closed off to prevent the blade rubber and vertebra extending therethrough, the top wall and the flanges in the base defining two openings larger than the gap between the facing inner ends of the flanges, for receipt of claws on the claw head of a wiper harness designed to locate into said grooves in the blade rubber.
With such an arrangement, the claw at one end of a wiper harness can be located into the end cap prior to the insertion of the blade rubber. An identical end cap will be similarly located onto the other end of the blade rubber so as to captivate the claw at the other end of the wiper harness. When the wiper blade is pressed against a windscreen the ends of the wiper blade cannot readily be displaced from the end caps and the claws are held positively by the end caps.
In many types of wiper blade harness the claws are angled from the claw head. In this instance the opening in the top wall of the end cap would be displaced nearer to the open end of the end cap than to the other opening, for receipt of an angled claw head of a wiper harness.
Preferably the side walls of the end cap will then define internal ramps linking the two openings in the top wall and in the flanges.
It is preferred that the facing inner edges of the flanges should incorporate barbs to press into the body of the blade rubber. Advantageously the side walls of the end cap can bulge outwardly in the region between the two openings.
The invention may be performed in various ways and a preferred embodiment will now be described, by way of example, with reference to the accompanying drawings, in which: Figures 1 and 2 are end perspective and vertical sections respectively through parts of a wiper blade harness incorporating an end cap of this invention; and Figures 3,4 and 5 are respectively top, underneath and underneath perspective views of the end cap shown in Figures 1 and 2.
A wiper blade harness 1 (as shown in Figures 1 and 2) terminates in a claw head 2 provided with claws 3 which locate within grooves 4 formed in the sides of a wiper blade rubber 5. An end cap 6 fits over the interengagement of the claw head 2 with the blade rubber 5. As shown in Figures 3 to 5 the end cap 6 has an opening 7 in the top wall to receive the upper portion of the claw head 2. The side arms 8 of the claw head angle forwardly to the position where the claws 3 project. The claws 3 are housed in an opening 9 formed in the lower wall of the end cap 6. This opening 9 is displaced forwardly with respect to the opening 7 in the upper face. Ramp walls 10 at the sides join the openings 7 and 9. The lower face also incorporates an elongated slot 11 which is received within the grooves 4 in the blade rubber 5. Barbs 12 help to retain the end cap onto the blade rubber 5 so as to resist rearward displacement of the blade rubber 5 with respect of the end cap 6.
For assembly purposes the claw head 2 is first located into the end cap 6. The groove 4 of the blade rubber 5 is then slid into the end cap so as to trap the claw head 2.
The other end of the blade rubber 5 is similarly connected to the other end of the blade harness 1 and, particularly when the blade assembly is mounted on to a vehicle windscreen, the blade rubber 5 is effectively prevented from sliding out of engagement with the two claw heads 2.

Claims (6)

1. An end cap for a wiper blade, the end cap being of generally U-shaped cross section, but with inturned flanges at the base to fit into grooves in a blade rubber, one end of the cap being open to receive the blade rubber with a strengthening vertebra and the other end being closed off to prevent the blade rubber and vertebra extending therethrough, the top wall and the flanges in the base defining two openings larger than the gap between the facing inner ends of the flanges, for receipt of claws on the claw head of a wiper harness designed to locate into said grooves in the blade rubber.
2. An end cap according to Claim 1, wherein the opening in the top wall of the end cap is displaced nearer to the open end of the end cap than to the other opening, for receipt of an angled claw head of a wiper harness.
3. An end cap according to Claim 2, wherein the side walls of the end cap define internal ramps linking the openings in the top wall and in the flanges.
4. An end cap according to any one of Claims 1 to 3, wherein the inner facing edges of the flanges incorporate barbs to press into the body of the blade rubber.
5. An end cap according to any one of Claims 1 to 3, wherein the side walls of the end cap bulge outwardly in the region between the two openings.
6. An end cap for a wiper blade, substantially as herein described, with reference to the accompanying drawings.
GB9929612A 1998-12-18 1999-12-15 Improvements relating to claw head retention on wiper blades Expired - Fee Related GB2344753B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9827913.6A GB9827913D0 (en) 1998-12-18 1998-12-18 Improvements relating to claw head retention on wiper blades

Publications (3)

Publication Number Publication Date
GB9929612D0 GB9929612D0 (en) 2000-02-09
GB2344753A true GB2344753A (en) 2000-06-21
GB2344753B GB2344753B (en) 2002-06-05

Family

ID=10844491

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9827913.6A Ceased GB9827913D0 (en) 1998-12-18 1998-12-18 Improvements relating to claw head retention on wiper blades
GB9929612A Expired - Fee Related GB2344753B (en) 1998-12-18 1999-12-15 Improvements relating to claw head retention on wiper blades

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9827913.6A Ceased GB9827913D0 (en) 1998-12-18 1998-12-18 Improvements relating to claw head retention on wiper blades

Country Status (2)

Country Link
JP (1) JP3522175B2 (en)
GB (2) GB9827913D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1274077A2 (en) * 2001-07-07 2003-01-08 Siemens Aktiengesellschaft Electrical information apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10142997A1 (en) 2001-09-01 2003-03-27 Bosch Gmbh Robert Windscreen wiper, has wiper blade secured to one end of resilient guide blade
FR2893290B1 (en) 2005-09-13 2009-05-01 Valeo Systemes Dessuyage LOCKING DEVICE BETWEEN A WIPER BLADE AND A WIPER BLADE HOLDER
DE102011005171A1 (en) * 2011-03-07 2012-09-13 Robert Bosch Gmbh Wiper blade adapter device, in particular for a motor vehicle windshield wiper device
CN106828420B (en) * 2017-01-20 2018-11-27 厦门富可汽车配件有限公司 A kind of Frameless windshield wiper end structure-improved

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605272A3 (en) * 1986-10-16 1988-04-22 Champion Spark Plug Europ Windscreen wiper with end stop
US5493750A (en) * 1992-02-04 1996-02-27 Robert Bosch Gmbh Blade assembly for wiping motor vehicle windscreens
EP0728641A1 (en) * 1995-02-21 1996-08-28 Valeo Systemes D'essuyage Windscreen wiper blade with a blade rubber movement blocking cap mounted on a blade gripping claw
JPH08268237A (en) * 1995-03-29 1996-10-15 Maruenu Kk Wiper blade for vehicle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2532996Y2 (en) * 1993-01-08 1997-04-16 マルエヌ株式会社 Vehicle wiper blade

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2605272A3 (en) * 1986-10-16 1988-04-22 Champion Spark Plug Europ Windscreen wiper with end stop
US5493750A (en) * 1992-02-04 1996-02-27 Robert Bosch Gmbh Blade assembly for wiping motor vehicle windscreens
EP0728641A1 (en) * 1995-02-21 1996-08-28 Valeo Systemes D'essuyage Windscreen wiper blade with a blade rubber movement blocking cap mounted on a blade gripping claw
JPH08268237A (en) * 1995-03-29 1996-10-15 Maruenu Kk Wiper blade for vehicle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WPI Abstract. Acc.No. 1996-514357 & JP 08 268 237 A *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1274077A2 (en) * 2001-07-07 2003-01-08 Siemens Aktiengesellschaft Electrical information apparatus
EP1274077A3 (en) * 2001-07-07 2003-11-26 Siemens Aktiengesellschaft Electrical information apparatus

Also Published As

Publication number Publication date
GB9827913D0 (en) 1999-02-10
GB9929612D0 (en) 2000-02-09
GB2344753B (en) 2002-06-05
JP3522175B2 (en) 2004-04-26
JP2000190819A (en) 2000-07-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20091215