EP3178612B1 - Mounting tool for balancing weights - Google Patents

Mounting tool for balancing weights Download PDF

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Publication number
EP3178612B1
EP3178612B1 EP15198717.9A EP15198717A EP3178612B1 EP 3178612 B1 EP3178612 B1 EP 3178612B1 EP 15198717 A EP15198717 A EP 15198717A EP 3178612 B1 EP3178612 B1 EP 3178612B1
Authority
EP
European Patent Office
Prior art keywords
mounting tool
balancing weights
balancing
tool
hand mounting
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.)
Not-in-force
Application number
EP15198717.9A
Other languages
German (de)
French (fr)
Other versions
EP3178612A1 (en
Inventor
Thomas Hornung
Michael Lutz
Diana ROSS
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.)
Wegmann Automotive GmbH and Co KG
Original Assignee
Wegmann Automotive GmbH and Co KG
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 Wegmann Automotive GmbH and Co KG filed Critical Wegmann Automotive GmbH and Co KG
Priority to EP15198717.9A priority Critical patent/EP3178612B1/en
Priority to PCT/EP2016/080452 priority patent/WO2017097985A1/en
Publication of EP3178612A1 publication Critical patent/EP3178612A1/en
Application granted granted Critical
Publication of EP3178612B1 publication Critical patent/EP3178612B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0078—Tools for wheel weights

Definitions

  • the invention relates to a mounting tool which is used in the assembly process of balancing weights.
  • a magnetic beating iron is disclosed in DE 10 2013 010 618 A1 . It is a mounting tool for balancing weights.
  • the balancing weights may be attached to the border of a rim and kept there by a retaining spring.
  • a plier for mounting and removing balancing weights comprises a cutting tool, a hammer and a gripping tool.
  • EP 1 253 414 A2 discloses a system for dispensing an amount of imbalance correction weight for attachment to a rotary element to reduce an imbalance in the rotary element.
  • a weight applicator automatically receives the amount of imbalance correction weight and is operable to attach it to the rotary element.
  • EP 2 829 860 A2 discloses a device for the attachment of correction weights for unbalance correction to a rotary body, comprising a supply unit for supplying individual correction weights, an attachment device for applying the correction weights to the rotary body.
  • WO 2006/122193 A2 discloses a balance weight which has a body having a cavity formed therein, a solid weight member substantially filling the cavity of the body; and an adhesive formed on a side of the body for securing the balance weight to an associated object to be balanced.
  • WO 2014/111528 A1 discloses a device for the application of balancing weights to the rim of a vehicle wheel comprises a program controlled manipulator device with a balancing weight application head.
  • the problem to be solved by the invention is to provide a simple and robust tool and method for mounting balancing weights to rims of vehicle wheels.
  • the mounting tool may be used to place self-adhesive balancing weights to an inner side of a rim.
  • These balancing weights have a body defined by a width, a length and a thickness comprising of a mass material like plastic, metal or ceramics or a mix thereof.
  • the balancing weights may comprise magnetic material or a material with magnetic particles or with a magnetic inlay. Most preferably the balancing weight comprises a zinc body with a steel inlay.
  • the balancing weights further may have a self-adhesive tape at one side, by which the mass material may be held to a rim of a wheel. Multiple pieces or segments of such a mass material are held together by the strip of adhesive tape, forming a belt or a belt of balancing weights.
  • the self-adhesive tape is protected by a liner, also called backing at the side opposite to the balancing weight segments. Before applying a balancing weight to a rim, the liner is removed.
  • a mounting tool for balancing weights is designed as a hand tool.
  • the mounting tool basically may have the shape of an arc segment with a curved outer side and may also have a curved inner side, a front side, a rear side and a thickness between the front side and the rear side.
  • the inner side has a smaller radius than the outer side.
  • the radius of the outer side is smaller than the radius of the rim to which balancing weights may be applied.
  • the mounting tool may be made out of plastic or metal or of a mix of these materials.
  • the mounting tool is formed in one part.
  • the curved contour of the mounting tool improves the usability in an environment with limited space.
  • the mounting tool preferably has a handle at the inner side.
  • the handle is made out of one piece. The handle enables an ergonomic handling for an operator.
  • the outer side may be a guiding surface for at least one balancing weight and may have a smooth surface. It preferably has a width corresponding to the width of the at least one balancing weight.
  • the guiding surface has lateral guides on both sides which protrude from the guiding surface.
  • the lateral guides are parallel and have a distance defining a groove, correspond-guides preferably are parallel and have a distance defining a groove, corresponding to the width of the at least one balancing weight so that they provide a lateral stop for the at least one balancing weight.
  • the depth of the groove may be smaller or equal than the thickness of the at least one balancing weight.
  • the tool may have at least one permanent magnet in close proximity to and preferably under the guiding surface or groove of the hand tool.
  • the at least one permanent magnet have an orientation so that they attract the balancing weights to the guiding surface of the hand tool. They may be embedded or molded into the mounting tool, preferably close to the outer surface, most preferably without contacting the outer surface, preferably forming a small air gap between the magnets and the balancing weights.
  • the outer surface may be the guiding surface.
  • the outer side of the hand tool may be equipped with a weight marking on the front side comprising a center marking for centering the at least one balancing weight to the center of the imbalance at the wheel. This helps to improve the usability of the hand tool.
  • the at least one balancing weights may be centered on the mounting tool.
  • the mounting tool may be loaded with at least one balancing weight from an automated dispenser with a predetermined amount of balancing weights as result of measuring the imbalance of a wheel.
  • the mounting tool may have a first and a second guide hole for receiving a pair of guide pins at a loading station, to bring the mounting tool in an exact position to a conveyor or any other kind of supply from the dispenser.
  • the at least one balanc-A method for attaching at least one balancing weight on a rim of a wheel with the aforementioned mounting tool may comprise the steps of, measuring the imbalance of a wheel, supplying a predetermined amount of balancing weights from a dispenser to the mounting tool which may be fixed to a loading station, transporting the mounting tool with the balancing weights to an assembly workplace, rolling the balancing weights to the inner side of the rim. It is further preferred to remove the liner before rolling the balancing weights to the inner side of the rim.
  • the transport of the mounting tool as well as the application process of the balancing weights with the mounting tool may be done by a worker.
  • the mounting tool basically may have the shape of an arc segment with a curved outer side (40) defining a guiding surface (60) for balancing weights (160) and may also have a curved inner side (50), a front side (70), a rear side and a thickness between the front side and the rear side.
  • the inner side (50) has a smaller radius than the outer side (40).
  • the mounting tool (100) is designed as a hand tool. It has a handle (110), at an inner side (50), which may comprise a first half and a second half.
  • the tool may have a weight marking (140) on the front side (70) and preferably a center marking for centering the balancing weights to the center of the imbalance.
  • a sectional view of the mounting tool (100) in a preferred embodiment is shown.
  • the mounting tool (100) preferably has a fist lateral guide (120) and a second lateral guide (130) parallel to the fist lateral guide (120) and along the guiding surface (60) forming a groove (150) at the outer side (40) of the mounding tool (100).
  • the width (10) of the groove (150) is as broad as the balancing weights (160).
  • Under the groove (150) a number of permanent magnets (250) are placed in a way so that they attract the balancing weights (160) to the groove (150).
  • a perspective view of the mounting tool (100) is shown. It shows the fist and the second lateral guide (120, 130), the groove (150), the inner side (50) of the mounting tool (100).
  • a side view of the mounting tool (100) attached to a feeder (170) is shown.
  • a predetermined number of balancing weights (160) are supplied from a dispenser (240) by means of a feeder.
  • the feeder (170) may be a belt conveyor, a slider or any other kind of feeder.
  • a view of a rim (180) with a mounting tool (100) is shown.
  • the mounting tool (100) is used to attach balancing weights (160) to the rim (180) with contact pressure (200) generated by the hand of a user (230) by gently rolling the mounting tool (100) which is loaded with the balancing weights (160) on the inner surface of a rim (180).
  • a side view of a rim (180) with a mounting tool (100) is shown.
  • the mounting tool (100) is used to attach balancing weights (160) to the rim (180) with contact pressure (200) generated by the hand of a user (230) by gently rolling the mounting tool (100) in a direction of motion (260).
  • the mounting tool is loaded with the balancing weights (160) on the inner surface of a rim (180).
  • the balancing weights (250) may be held together and fixed to the rim by strip of an adhesive tape (270).
  • a view of a rim (180) with a mounting tool (100) is shown.
  • the mounting tool (100) is used to attach balancing weights (160) to the rim (180) with contact pressure (200) generated by the hand of a user (230), grapping into the mounting tool (100), by gently rolling the mounting tool (100) which is loaded with the balancing weights (160) on the inner sur-face of a rim (180).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Testing Of Balance (AREA)

Description

    Field of the invention
  • The invention relates to a mounting tool which is used in the assembly process of balancing weights.
    • Description of the related art
  • A magnetic beating iron is disclosed in DE 10 2013 010 618 A1 . It is a mounting tool for balancing weights. The balancing weights may be attached to the border of a rim and kept there by a retaining spring.
  • DE 20 2013 011 165 U1 discloses a plier for removing self-adhesive balancing weights from the rim of a wheel.
  • In DE 9418651 U1 a plier for mounting and removing balancing weights is disclosed. The plier comprises a cutting tool, a hammer and a gripping tool.
  • EP 1 253 414 A2 discloses a system for dispensing an amount of imbalance correction weight for attachment to a rotary element to reduce an imbalance in the rotary element. A weight applicator automatically receives the amount of imbalance correction weight and is operable to attach it to the rotary element.
  • EP 2 829 860 A2 discloses a device for the attachment of correction weights for unbalance correction to a rotary body, comprising a supply unit for supplying individual correction weights, an attachment device for applying the correction weights to the rotary body.
  • WO 2006/122193 A2 discloses a balance weight which has a body having a cavity formed therein, a solid weight member substantially filling the cavity of the body; and an adhesive formed on a side of the body for securing the balance weight to an associated object to be balanced.
  • WO 2014/111528 A1 discloses a device for the application of balancing weights to the rim of a vehicle wheel comprises a program controlled manipulator device with a balancing weight application head.
    • Summary of the invention
  • The problem to be solved by the invention is to provide a simple and robust tool and method for mounting balancing weights to rims of vehicle wheels.
  • The solutions of the problem is described in the independent claims. The dependent claims relate to further improvements of the invention.
  • The mounting tool may be used to place self-adhesive balancing weights to an inner side of a rim. These balancing weights have a body defined by a width, a length and a thickness comprising of a mass material like plastic, metal or ceramics or a mix thereof.
  • The balancing weights may comprise magnetic material or a material with magnetic particles or with a magnetic inlay. Most preferably the balancing weight comprises a zinc body with a steel inlay.
  • The balancing weights further may have a self-adhesive tape at one side, by which the mass material may be held to a rim of a wheel. Multiple pieces or segments of such a mass material are held together by the strip of adhesive tape, forming a belt or a belt of balancing weights. The self-adhesive tape is protected by a liner, also called backing at the side opposite to the balancing weight segments. Before applying a balancing weight to a rim, the liner is removed.
  • In a first embodiment, a mounting tool for balancing weights is designed as a hand tool. The mounting tool basically may have the shape of an arc segment with a curved outer side and may also have a curved inner side, a front side, a rear side and a thickness between the front side and the rear side. Preferably, the inner side has a smaller radius than the outer side. Most preferably, the radius of the outer side is smaller than the radius of the rim to which balancing weights may be applied. The mounting tool may be made out of plastic or metal or of a mix of these materials. The mounting tool is formed in one part. The curved contour of the mounting tool improves the usability in an environment with limited space.
  • The mounting tool preferably has a handle at the inner side. The handle is made out of one piece. The handle enables an ergonomic handling for an operator.
  • The outer side may be a guiding surface for at least one balancing weight and may have a smooth surface. It preferably has a width corresponding to the width of the at least one balancing weight. The guiding surface has lateral guides on both sides which protrude from the guiding surface. The lateral guides are parallel and have a distance defining a groove, correspond-guides preferably are parallel and have a distance defining a groove, corresponding to the width of the at least one balancing weight so that they provide a lateral stop for the at least one balancing weight. The depth of the groove may be smaller or equal than the thickness of the at least one balancing weight.
  • The tool may have at least one permanent magnet in close proximity to and preferably under the guiding surface or groove of the hand tool. The at least one permanent magnet have an orientation so that they attract the balancing weights to the guiding surface of the hand tool. They may be embedded or molded into the mounting tool, preferably close to the outer surface, most preferably without contacting the outer surface, preferably forming a small air gap between the magnets and the balancing weights. The outer surface may be the guiding surface. The attraction of the at least one balancing weight by the at least one permanent magnet enables to remove the liner from the adhesive tape without an additional fastener.
  • The outer side of the hand tool may be equipped with a weight marking on the front side comprising a center marking for centering the at least one balancing weight to the center of the imbalance at the wheel. This helps to improve the usability of the hand tool. The at least one balancing weights may be centered on the mounting tool.
  • The mounting tool may be loaded with at least one balancing weight from an automated dispenser with a predetermined amount of balancing weights as result of measuring the imbalance of a wheel. For this purpose the mounting tool may have a first and a second guide hole for receiving a pair of guide pins at a loading station, to bring the mounting tool in an exact position to a conveyor or any other kind of supply from the dispenser. After supplying the at least one balancing weight from the dispenser to the mounting tool, the at least one balanc-A method for attaching at least one balancing weight on a rim of a wheel with the aforementioned mounting tool may comprise the steps of, measuring the imbalance of a wheel, supplying a predetermined amount of balancing weights from a dispenser to the mounting tool which may be fixed to a loading station, transporting the mounting tool with the balancing weights to an assembly workplace, rolling the balancing weights to the inner side of the rim. It is further preferred to remove the liner before rolling the balancing weights to the inner side of the rim.
  • The transport of the mounting tool as well as the application process of the balancing weights with the mounting tool may be done by a worker.
    • Description of Drawings
  • In the following, the invention will be described by way of example, without limitation of the general inventive concept, on examples of embodiment with reference to the drawings.
    • Fig. 1 shows a preferred embodiment of a mounting tool for balancing weights.
    • Fig. 2 shows a mounting tool in a side view.
    • Fig. 3 shows the mounting tool in a perspective view.
    • Fig. 4 shows the mounting tool loaded with balancing weights.
    • Fig. 5 shows a mounting tool during it is used to apply balancing weights to a rim.
    • Fig. 6 shows a mounting tool used to apply an amount of balancing weights to a rim.
    • Fig. 6 shows a mounting tool used to apply an amount of balancing weights to a rim.
  • In Fig. 1, a preferred embodiment of a mounting tool (100) is shown. The mounting tool basically may have the shape of an arc segment with a curved outer side (40) defining a guiding surface (60) for balancing weights (160) and may also have a curved inner side (50), a front side (70), a rear side and a thickness between the front side and the rear side. Preferably, the inner side (50) has a smaller radius than the outer side (40). The mounting tool (100) is designed as a hand tool. It has a handle (110), at an inner side (50), which may comprise a first half and a second half. The tool may have a weight marking (140) on the front side (70) and preferably a center marking for centering the balancing weights to the center of the imbalance. In Fig. 2, a sectional view of the mounting tool (100) in a preferred embodiment is shown. The mounting tool (100) preferably has a fist lateral guide (120) and a second lateral guide (130) parallel to the fist lateral guide (120) and along the guiding surface (60) forming a groove (150) at the outer side (40) of the mounding tool (100). The width (10) of the groove (150) is as broad as the balancing weights (160). Under the groove (150) a number of permanent magnets (250) are placed in a way so that they attract the balancing weights (160) to the groove (150).
  • In Fig. 3, a perspective view of the mounting tool (100) is shown. It shows the fist and the second lateral guide (120, 130), the groove (150), the inner side (50) of the mounting tool (100).
  • In Fig. 4, a side view of the mounting tool (100) attached to a feeder (170) is shown. A predetermined number of balancing weights (160) are supplied from a dispenser (240) by means of a feeder. The feeder (170) may be a belt conveyor, a slider or any other kind of feeder.
  • In Fig. 5, a view of a rim (180) with a mounting tool (100) is shown. The mounting tool (100) is used to attach balancing weights (160) to the rim (180) with contact pressure (200) generated by the hand of a user (230) by gently rolling the mounting tool (100) which is loaded with the balancing weights (160) on the inner surface of a rim (180).
  • In Fig. 6, a side view of a rim (180) with a mounting tool (100) is shown. The mounting tool (100) is used to attach balancing weights (160) to the rim (180) with contact pressure (200) generated by the hand of a user (230) by gently rolling the mounting tool (100) in a direction of motion (260). The mounting tool is loaded with the balancing weights (160) on the inner surface of a rim (180). The balancing weights (250) may be held together and fixed to the rim by strip of an adhesive tape (270).
  • In Fig. 7, a view of a rim (180) with a mounting tool (100) is shown. The mounting tool (100) is used to attach balancing weights (160) to the rim (180) with contact pressure (200) generated by the hand of a user (230), grapping into the mounting tool (100), by gently rolling the mounting tool (100) which is loaded with the balancing weights (160) on the inner sur-face of a rim (180).
    • List of reference numerals
    • 10
    width
    40
    outer side
    50
    inner side
    60
    guiding surface
    70
    front side
    100
    mounting tool
    110
    handle
    120
    first lateral guide
    130
    second lateral guide
    140
    weight marking
    150
    groove
    160
    balancing weights
    170
    feeder
    180
    rim
    200
    contact pressure
    230
    hand of a user
    240
    supply direction from a dispenser
    250
    permanent magnets
    260
    direction of motion
    270
    adhesive tape

Claims (9)

  1. A hand mounting tool (100) for at least one balancing weight (160) having the shape of an arc segment with a curved outer side (40) forming a guiding surface (150) for the at least one balancing weight (160) and an inner side (50) having a handle (110) enabling an ergonomic handling for an operator
    characterized in, that
    the mounting tool (100) is made out of one piece,
    and the guiding surface (150) has a first lateral guide (120) and a second lateral guide (130) parallel to the first lateral guide (120), both protruding from the guiding surface (150) and defining a groove (60).
  2. A hand mounting tool (100) according to claim 1,
    characterized in, that
    the first lateral guide (120) and the second lateral guide (130) have a distance equal to the width (10) of the at least one balancing weight (160).
  3. A hand mounting tool (100) according to any one of the previous claims,
    characterized in, that
    the depth of the groove (60) between the lateral guides (120, 130) is less or equal than than the thickness of the balancing weights (160).
  4. A hand mounting tool (100) according to any one of the previous claims,
    characterized in, that
    the tool has at least one permanent magnet (250) in close proximity to the guiding surface (60) or groove (150).
  5. A hand mounting tool (100) according to any one of the previous claims,
    characterized in, that
    the at least one permanent magnet (250) is embedded or molded close to the groove (60) or guiding surface (150).
  6. A hand mounting tool (100) according to any one of the previous claims,
    characterized in, that
    a small air gap is provided between the at least one permanent magnet (250) and the balancing weights.
  7. A hand mounting tool (100) according to any one of the previous claims,
    characterized in, that
    the front side (70) has a weight marking (140).
  8. A hand mounting tool (100) according to claim 7,
    characterized in, that
    the weight marking (140) has a center marking for centering the balancing weights (250) to the center of an imbalance.
  9. A hand mounting tool (100) according to any one of the previous claims,
    characterized in, that
    the mounting tool has a first and second guide hole.
EP15198717.9A 2015-12-09 2015-12-09 Mounting tool for balancing weights Not-in-force EP3178612B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15198717.9A EP3178612B1 (en) 2015-12-09 2015-12-09 Mounting tool for balancing weights
PCT/EP2016/080452 WO2017097985A1 (en) 2015-12-09 2016-12-09 Mounting tool for balancing weights

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15198717.9A EP3178612B1 (en) 2015-12-09 2015-12-09 Mounting tool for balancing weights

Publications (2)

Publication Number Publication Date
EP3178612A1 EP3178612A1 (en) 2017-06-14
EP3178612B1 true EP3178612B1 (en) 2018-04-25

Family

ID=54848427

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15198717.9A Not-in-force EP3178612B1 (en) 2015-12-09 2015-12-09 Mounting tool for balancing weights

Country Status (2)

Country Link
EP (1) EP3178612B1 (en)
WO (1) WO2017097985A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4089356A (en) * 1976-02-06 1978-05-16 Connor Dennis J O Fiber-reinforced plastic tool handle
AT383298B (en) * 1983-06-01 1987-06-10 Kohlbrat & Bunz Maschvertrieb TOOL MADE OF FIBER REINFORCED PLASTIC
DE9418651U1 (en) 1994-11-22 1995-03-09 Hartkopf Gmbh U Co Kg Geb Wheel balance weight pliers
US6616089B2 (en) * 2001-04-24 2003-09-09 Illinois Tool Works Inc. System and method for dispensing adhesive imbalance correction weight
US20060273652A1 (en) * 2005-05-11 2006-12-07 Conceptual Plastic Creations, Llc Balance weight
DE202012006499U1 (en) 2012-07-04 2013-02-18 Hans Eschwe Magnetic stop pin for balance weights for steel rims
EP2757284A1 (en) * 2013-01-18 2014-07-23 WEGMANN automotive GmbH & Co. KG Balancing weight application system
DE102013108048B4 (en) * 2013-07-26 2015-06-03 Schenck Rotec Gmbh Device for attaching balance weights for unbalance compensation
DE102013020980A1 (en) 2013-09-11 2015-03-12 Wolfgang Hoffmann Adhesive weight pliers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3178612A1 (en) 2017-06-14
WO2017097985A1 (en) 2017-06-15

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