GB2311338A - Bearing mountings - Google Patents

Bearing mountings Download PDF

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Publication number
GB2311338A
GB2311338A GB9705735A GB9705735A GB2311338A GB 2311338 A GB2311338 A GB 2311338A GB 9705735 A GB9705735 A GB 9705735A GB 9705735 A GB9705735 A GB 9705735A GB 2311338 A GB2311338 A GB 2311338A
Authority
GB
United Kingdom
Prior art keywords
sleeve
side walls
bearing mounting
mounting according
openings
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
GB9705735A
Other versions
GB9705735D0 (en
GB2311338B (en
Inventor
Mark Anthony Lewis
Alistair Duncan Robertson
Jeffrey Hugh Williams
Dennis Williams
Mahesan Pathmanathan
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 GB9705735D0 publication Critical patent/GB9705735D0/en
Publication of GB2311338A publication Critical patent/GB2311338A/en
Application granted granted Critical
Publication of GB2311338B publication Critical patent/GB2311338B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B60S1/34—Wiper arms; Mountings therefor
    • 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
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/3425—Constructional aspects of the arm
    • B60S1/3436—Mounting heads
    • B60S1/344—Flat-type mounting heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/02—Trunnions; Crank-pins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
    • 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
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/3425—Constructional aspects of the arm
    • B60S1/3445—Joints between elements
    • B60S1/345—Joints between elements the elements being a link piece and a mounting head
    • 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
    • B60S1/34—Wiper arms; Mountings therefor
    • B60S1/3463—Means to press blade onto screen
    • B60S1/3465—Means to press blade onto screen with coil springs
    • B60S1/3468—Mountings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/09—Windscreen wipers, e.g. pivots therefore

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

A windscreen wiper assembly drive head comprises aligned passageways 3 formed for a pivot pin for a wiper assembly. The passageways 3 are defined either by deformed portions 4 in each side wall 5 of the body 1, or by separate flanged bearing bushes 14 inserted in the side walls. Alternatively a complete single sleeve for the pivot pin can be provided between the two side walls, with the ends of the sleeve fitting into aligned holes in the side walls. The bearing surfaces can be coated with friction-reduction material.

Description

ImDrovements relations to Bearina Mounting There are many situations where a bearing is needed in a body for a pivot pin which is to be connected to another member. A particular instance is the interconnection of a drive head to a wiper arm of a windscreen wiper assembly.
The bearing mounting needs to be designed to support the expected load.
According to the present invention there is provided a bearing mounting for a pivot pin located between side walls of a U-shaped cross-section body, the bearing being provided by sleeve portions extending inwardly of the body from openings in the side walls.
The sleeve portions provide a robust mounting for the pivot pin in such a U-shaped body. Inwardly deformed portions of the side walls could be shaped to define the sleeve portions. Alternatively the sleeve portions may advantageously comprise the two ends of a continuous sleeve insert which is set into the openings in the side walls. In this instance it is desirable to provide that the central section of the sleeve insert is of larger external diameter than the opening in at least one of the side walls. This helps to ensure that the separate sleeve insert will be held in place between the two side walls. One or both ends of the sleeve insert can be peened over on the outer face of the relevant side wall. Another possibility is to provide individual bearings into the openings in each side wall, these bearings having enlarged heads which will space an outer member from the body.
It is preferred that the inner surfaces of the sleeve portions should be coated with a friction reduction material.
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:- Figure 1 is a perspective view of a drive head of a windscreen wiper assembly; Figure 2 is an underneath view of such a drive head showing a bearing mounting according to the present invention; Figure 3 is an enlarged view of part of the bearing mounting shown in Figure 2; Figures 4 and 5 are vertical sections through alternative forms of bearing mounting for a drive head of the type shown in Figure 1; and Figures 6 and 7 are perspective and underneath views respectively of another form of bearing mounting of the invention.
The windscreen wiper assembly drive head 1 shown in Figure 1 will be mounted onto a drive shaft of a motor by means of a shaped recess 2. At the other end of the drive head aligned passageways 3 are formed for a pivot pin for a windscreen wiper assembly. As shown in Figures 2 and 3 the passageways 3 are defined by deformed portions 4 in each side wall 5 of the body 1. These create sleeve-like members in which a pivot pin for a wiper arm can be mounted.
In the alternative arrangements shown in Figures 4 and 5 a complete single sleeve 6 is provided between the two side walls 5. In Figure 4 this sleeve 6 fits into aligned holes 7,8. The hole 8 is of smaller diameter than the main dimension of the sleeve 6 so that the narrowed portion 9 only of the sleeve 6 will fit into the hole 8. This provides a butt stop 10 of the sleeve against the wall 5.
In the arrangement shown in Figure 5 narrowed portions 9 are formed at both ends of the sleeve 6 and these fit into the openings 7 and 8 during part of the forming procedure for the drive head 1. Thus as the walls 5 are bent upwardly by a forming tool the sleeve 6 is held in position so that the ends 9 slide into the openings 8. This holds the sleeve 6 securely between the side walls 5. If desired an external bearing washer 11 can be provided. It is also possible to peen over the ends of the sleeve 6, as shown at 12, for added security. In all the arrangements the inner face 13 of the sleeve members 4 and 6 are coated with a friction reduction material.
In the arrangement shown in Figures 6 and 7 the bearings mounting is provided by a pair of "top hat" bearings 14 which fit into the passageways 3. These bearings 14 provide the mounting for the pivot pin which will pass through the drive head 1 and a wiper arm which will be located outside the drive head 1. The enlarged heads 15 of the bearings 14 space the wiper arm away from the drive head 1 and thus prevent damage to paint work when the two parts move relative to one another. In this arrangement a locating pin 16 is provided for a hook at the end of a locating spring. The hook at the end of the spring will be held centrally by a pair of side wings 17 of the drive head 1.

Claims (8)

1. A bearing mounting for a pivot pin located between side walls of a U-shaped cross-section body, the bearing being provided by sleeve portions extending inwardly of the body from openings in the side walls.
2. A bearing mounting according to Claim 1, wherein the sleeve portions are inwardly deformed portions of the side walls, shaped to define the sleeve portions.
3. A bearing mounting according to Claim 1, wherein the sleeve portions comprise the two ends of a continuous sleeve insert which is set into the openings in the side walls.
4. A bearing mounting according to Claim 3, wherein the central section of the sleeve insert is of larger external diameter than the opening in at least one of the side walls.
5. A bearing mounting according to Claim 3 or Claim 4, wherein one or both ends of the sleeve insert is peened over on the outer face of the side wall.
6. A bearing mounting according to Claim 1 wherein individual bearings are located in the openings in each side wall, these bearings having enlarged heads which will space an outer member from the body.
7. A bearing mounting according to any one of Claims 1 to 5, wherein the inner surfaces of the sleeve portions are coated with a friction reduction material.
8. A bearing mounting substantially as herein described with reference to the accompanying drawings.
GB9705735A 1996-03-23 1997-03-20 Improvements relating to bearing members Expired - Lifetime GB2311338B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9606149.4A GB9606149D0 (en) 1996-03-23 1996-03-23 Improvements relating to bearing mountings

Publications (3)

Publication Number Publication Date
GB9705735D0 GB9705735D0 (en) 1997-05-07
GB2311338A true GB2311338A (en) 1997-09-24
GB2311338B GB2311338B (en) 2000-04-05

Family

ID=10790908

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9606149.4A Pending GB9606149D0 (en) 1996-03-23 1996-03-23 Improvements relating to bearing mountings
GB9705735A Expired - Lifetime GB2311338B (en) 1996-03-23 1997-03-20 Improvements relating to bearing members

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9606149.4A Pending GB9606149D0 (en) 1996-03-23 1996-03-23 Improvements relating to bearing mountings

Country Status (1)

Country Link
GB (2) GB9606149D0 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004000615A1 (en) * 2002-06-21 2003-12-31 Robert Bosch Gmbh Fastening element for the wiper arm of a vehicle windshield wiper
EP1498217A2 (en) * 2003-07-17 2005-01-19 DGS Druckguss Systeme AG Method of manufacturing a functional part of lightweight construction
FR2861003A1 (en) * 2003-10-21 2005-04-22 Bosch Gmbh Robert Windscreen wiper arm pivot pin assembly procedure uses rolled sheet metal pin inserted through holes in fixing piece and fastened by having ends bent over
WO2005087559A1 (en) * 2004-03-13 2005-09-22 Robert Bosch Gmbh Wiper arm for a windscreen wiping device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB762884A (en) * 1953-12-30 1956-12-05 Samuel Jack Myers An improved method for forming bearings on or through sheet material
GB875540A (en) * 1959-07-28 1961-08-23 Chamberlain & Hookham Ltd Electric demand indicating apparatus
GB1180177A (en) * 1967-11-11 1970-02-04 Rau Swf Autozubehoer A Mounting Member for a Windscreen Wiper Arm
GB1371944A (en) * 1971-03-17 1974-10-30 Rau Swf Autozubehoer Windscreen wiper arm for motor vehicles
GB1541399A (en) * 1977-02-07 1979-02-28 Chrysler Uk Bushes
GB2184200A (en) * 1985-12-16 1987-06-17 Torrington Co Improvements in or relating to yokes for universal joints
GB2253340A (en) * 1991-02-20 1992-09-09 Trico Folberth Ltd Pivot joint
EP0584018A1 (en) * 1992-08-19 1994-02-23 Valeo Systemes D'essuyage Windscreen wiper with improved mounting head

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB762884A (en) * 1953-12-30 1956-12-05 Samuel Jack Myers An improved method for forming bearings on or through sheet material
GB875540A (en) * 1959-07-28 1961-08-23 Chamberlain & Hookham Ltd Electric demand indicating apparatus
GB1180177A (en) * 1967-11-11 1970-02-04 Rau Swf Autozubehoer A Mounting Member for a Windscreen Wiper Arm
GB1371944A (en) * 1971-03-17 1974-10-30 Rau Swf Autozubehoer Windscreen wiper arm for motor vehicles
GB1541399A (en) * 1977-02-07 1979-02-28 Chrysler Uk Bushes
GB2184200A (en) * 1985-12-16 1987-06-17 Torrington Co Improvements in or relating to yokes for universal joints
GB2253340A (en) * 1991-02-20 1992-09-09 Trico Folberth Ltd Pivot joint
EP0584018A1 (en) * 1992-08-19 1994-02-23 Valeo Systemes D'essuyage Windscreen wiper with improved mounting head

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004000615A1 (en) * 2002-06-21 2003-12-31 Robert Bosch Gmbh Fastening element for the wiper arm of a vehicle windshield wiper
US7076829B2 (en) 2002-06-21 2006-07-18 Robert Bosch Gmbh Fastening element for the wiper arm of a vehicle windshield wiper
EP1498217A2 (en) * 2003-07-17 2005-01-19 DGS Druckguss Systeme AG Method of manufacturing a functional part of lightweight construction
EP1498217A3 (en) * 2003-07-17 2005-07-13 DGS Druckguss Systeme AG Method of manufacturing a functional part of lightweight construction
FR2861003A1 (en) * 2003-10-21 2005-04-22 Bosch Gmbh Robert Windscreen wiper arm pivot pin assembly procedure uses rolled sheet metal pin inserted through holes in fixing piece and fastened by having ends bent over
WO2005087559A1 (en) * 2004-03-13 2005-09-22 Robert Bosch Gmbh Wiper arm for a windscreen wiping device

Also Published As

Publication number Publication date
GB9705735D0 (en) 1997-05-07
GB9606149D0 (en) 1996-05-29
GB2311338B (en) 2000-04-05

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20170319