EP1289610A1 - A wheel, particularly for skates. rollers and the like - Google Patents
A wheel, particularly for skates. rollers and the likeInfo
- Publication number
- EP1289610A1 EP1289610A1 EP02738101A EP02738101A EP1289610A1 EP 1289610 A1 EP1289610 A1 EP 1289610A1 EP 02738101 A EP02738101 A EP 02738101A EP 02738101 A EP02738101 A EP 02738101A EP 1289610 A1 EP1289610 A1 EP 1289610A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- outer edge
- surface portion
- rim
- wheel according
- anchoring elements
- 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.)
- Withdrawn
Links
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/22—Wheels for roller skates
Definitions
- the present invention relates to a wheel, particularly for use in skates, rollers and the like.
- a skate or a roller typically comprises a sports shoe, which is associated to a frame.
- the frame is operatively connected to one or more wheels that are free to roll on a rolling plane.
- Known wheels adopted for skating/rolling purposes, comprise a rim that includes a central hub and a coaxial outer rim, the outer edge of which is suitable for interconnection with a tread.
- the central hub is integrally connected with a coaxial outer rim.
- the outer rim is provided with an outer surface, on the top of which the connection between the rim and the tread is usually performed. For this aim, over-injection or gluing processes are adopted.
- the anchorage between the outer surface and the tread is guaranteed by the compatibility between the materials used for the rim and the tread, since the tread is made of plastic material, such as polyurethane.
- plastic material such as polyurethane.
- this compatibility does not exist anymore. Therefore, if the outer surface is smooth, circumferential slipping phenomena between the tread and the outer surface may occur. These slipping phenomena may eventually cause the partial or total separation of the tread from the rim, with the consequent need to change the wheel. Of course, this fact raises remarkable safety problems for the user.
- some known rims comprise a plurality of projections, which project radially from the outer surface of the outer rim. These projections are arranged, so as to lie on a middle surface portion of the outer surface, substantially along the middle plane, which intersects pe ⁇ endicularly the outer surface and which is orthogonal to the main axis of the central hub.
- the main drawback of this known solution consists in that a stiffening of the tread is provoked by the presence of the mentioned circular rim, since a decrease occurs in the thickness of the tread in the region in which the tread contacts the ground. This causes a relevant decrease in the mechanical characteristics of the tread in terms of rebound, abso ⁇ tion of vibrations and response to stress.
- the aim of the present invention is to solve the described technical problems by providing a wheel, for use in skates, rollers and the like, which allows to obtain an excellent anchorage of the tread to the rim and, at the same time, to maintain unchanged the mechanical characteristics of the tread in terms of rebound, abso ⁇ tion of vibration and response to stress.
- another object of the present invention is to provide a wheel which is easy to manufacture with plastic or metallic materials or other alloys.
- the present invention provides a wheel, particularly for skates, rollers and the like, which comprises: a rim comprising a central hub and an outer rim connected to the central hub, the outer rim being provided with a substantially flat outer surface, which is delimited by a first outer edge and a second outer edge; a tread coupled to the rim approximately at the outer surface; and one or more anchoring elements, which project from said outer surface for improving the anchorage of the tread to the outer rim.
- the wheel is characterised in that the anchoring elements are arranged, so as to be positioned at least in a portion of the outer surface, which is substantially close to the first outer edge and/or the second outer edge.
- Figures 1-4 are schematic views of a first embodiment of the wheel, according to the present invention.
- FIGS 5-7 are schematic views of a second embodiment of the wheel, according to the present invention.
- figures 8-13 are schematic views of a third embodiment of the wheel, according to the present invention. Ways of carrying out the Invention
- the wheel 2 is particularly suitable for use in skates, rollers and the like (figures 3-4).
- the wheel 2 comprises a rim 1 (figures 1, 2 and 4), which includes a central hub 3 and an outer rim 4, which is connected to the central hub 3 by means of a plurality of intermediate radial elements 5.
- the outer rim 4 is provided with an outer surface 60, which is delimited by a first outer edge 6a and a second outer edge 6b.
- the outer surface 60 comprises a middle surface portion 9, which substantially comprises a middle plane 91 that intersects pe ⁇ endicularly the outer surface 60 and is equally spaced from the first outer edge 6a and the second outer edge 6b.
- the middle plane 91 is, in practice, the middle symmetry plane of the outer surface 60 and it is orthogonal to the main axis 92 of the central hub 3.
- the outer surface 60 comprises a first side surface portion 95 and a second side surface portion 96. As illustrated in figure 2, these two surface portions are positioned close to the first outer edge 6a and to the second outer edge 6b and delimit the middle surface portion 9. Externally, the first outer edge 6a and the second outer edge 6b delimit these two surface portions, respectively.
- the rim can be obtained by means of known manufacturing methods. Advantageously, it can be obtained, at least partially, by way of an extrusion process.
- a tread 7 is coupled to the rim 1 at the outer surface 60.
- the wheel 2, according to the present invention comprises also one or more anchoring elements 120, aimed at improving the anchorage of the tread 7 to the outer rim 4.
- the anchoring elements 120 project from the outer surface 60 at least in a position, which is substantially close to the first outer edge 6a and/or to the second outer edge 6b.
- the anchoring elements 120 can be advantageously positioned at least at the first side surface portion 95 and/or the second side surface portion 96.
- anchoring elements 120 are positioned at the first outer edge 6a and/or at the second outer edge 6b and are arranged, so as to lie on the same plane (not shown) of the first outer edge 6a and/or the second outer edge 6b.
- the anchoring elements 120 comprise two or more ribs 8, projecting radially from the outer surface 60.
- the ribs 8 are circular and parallel and are equally spaced apart. Additionally, they can be advantageously arranged in pairs.
- a first pair of circular ribs can be positioned respectively on the first side surface portion 95 and the second side surface portion 96.
- a second pair of circular ribs can be positioned respectively at the first outer edge 6a and at the second outer edge 6b.
- the ribs 8 define a sequence of parallel grooves 10, which increases the area of contact between the tread 7 and outer rim 4. This fact, as well as the arrangement of this area of contact on many inclined planes, allows effectively avoiding circumferential slipping of the tread around the rim 1.
- the ribs 8 may be manufactured by injection of plastics, by moulding or, especially if the wheel is made of metal, by removal of material.
- the anchoring elements 120 comprise one or more lugs 28, which project radially from the outer surface 60.
- the lugs 28 can be arranged in parallel groups. Each group comprises a pair of lateral parallel lugs 28a and 28b, which arise from the first outer edge 6a and from the second outer edge 6b and an intermediate central lug 28c, which projects radially from the middle surface portion 9 (figures 6-7).
- the intermediate central lug 28c is provided with a reduced height and/or a reduced length in comparison with the lateral parallel lugs 28a and 28c.
- the lugs 28 may be manufactured by injection, moulding or removal of material, for example by a first peripheral milling, to obtain the grooves 30 (figures 5- 6), and a second pendulum milling to obtain the cut-outs 31.
- the anchoring elements 120 comprise one or more projections 48a and 48b, which project radially from the outer surface 60.
- projections 48a and 48b are arranged according to a staggered layout.
- the projections 48a and 48b can UG respectively along two parallel planes 94 and 95 (figures 9-11) that are pe ⁇ endicular to the main axis 92 of the central hub 3.
- the planes are preferably arranged equally spaced from the middle plane 91, which is parallel to them. In this manner, non-anchoring elements are present in the middle surface portion 9.
- the projections 48a and 48b can project radially from the first outer edge 6a and from the second outer edge 6b (figure 10-11,13).
- the projections 48a and 48b lie respectively along two parallel planes 97 and 98, on which the first outer edge 6a and the second outer edge 6b lie respectively.
- the projections 48a and 48b are provided with an upside down U shaped profile, in which the free ends are connected to the outer surface 60.
- the wheel allows to achieve the intended aim and objects. Thanks to the use of the anchoring elements 120, an excellent anchorage of the tread 7 to the outer rim 4, also using wheel rims made of aluminium or other metal, can be achieved. At the same time, the particular geometrical distribution, with which such anchoring elements 120 are arranged on the outer surface 60, provides excellent comfort and high characteristics of rebound and abso ⁇ tion of vibrations, due to the fact that the working thickness h of the tread 7 is not reduced.
- the wheel according to the present invention, can be manufactured in an easy manner and at relatively low cost in view of the manufacturing processes that can be adopted for the realisation of the anchoring elements 120.
Landscapes
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITTV20010067 | 2001-05-24 | ||
IT2001TV000067A ITTV20010067A1 (en) | 2001-05-24 | 2001-05-24 | WHEEL RIM STRUCTURE PARTICULARLY FOR SKATES |
PCT/EP2002/005671 WO2002094395A1 (en) | 2001-05-24 | 2002-05-23 | A wheel, particularly for skates. rollers and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1289610A1 true EP1289610A1 (en) | 2003-03-12 |
Family
ID=11460074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02738101A Withdrawn EP1289610A1 (en) | 2001-05-24 | 2002-05-23 | A wheel, particularly for skates. rollers and the like |
Country Status (5)
Country | Link |
---|---|
US (1) | US20030168904A1 (en) |
EP (1) | EP1289610A1 (en) |
CN (1) | CN1463198A (en) |
IT (1) | ITTV20010067A1 (en) |
WO (1) | WO2002094395A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008053450A1 (en) * | 2006-11-03 | 2008-05-08 | Bpt Technologies (Proprietary) Limited | A wheel |
US20090273226A1 (en) * | 2008-05-01 | 2009-11-05 | Gregory Krantz | Distributed Load Wheel |
IT1394226B1 (en) * | 2009-04-02 | 2012-06-01 | F I R S R L | WHEEL, IN PARTICULAR FOR SELF-PROPELLED MACHINES SUCH AS TROLLEYS OR THE LIKE, AND METHOD OF REALIZING THE SAME. |
CN102151402B (en) * | 2011-03-07 | 2013-02-06 | 壮大高分科技(杭州)有限公司 | Wheel core of roller skate pulley |
EP3064807A1 (en) | 2011-06-30 | 2016-09-07 | NSK Ltd. | Pulley apparatus |
USD783752S1 (en) * | 2013-08-09 | 2017-04-11 | Capsule Collective L.L.C. | Wheel |
US20150042147A1 (en) * | 2013-08-09 | 2015-02-12 | Collin Gabriel SNOEK | Wheel |
US9162527B1 (en) * | 2014-07-14 | 2015-10-20 | White Oak Industries, Inc. | Mechanically interlocked wheel |
CN104118274A (en) * | 2014-07-23 | 2014-10-29 | 广州顺力聚氨酯科技有限公司 | Method for manufacturing composite layer skating wheel |
US10182629B2 (en) * | 2015-10-30 | 2019-01-22 | Milwaukee Electric Tool Corporation | Wheeled device and wheel assembly |
US10655724B2 (en) * | 2016-04-27 | 2020-05-19 | Dayco Ip Holdings, Llc | Asymmetric spoke design for torsional vibration dampers |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2241686A (en) * | 1938-07-11 | 1941-05-13 | Chicago Roller Skate Co | Wheel guard |
CA2179313A1 (en) | 1995-06-26 | 1996-12-27 | Henry Larrucea | Skate wheel |
US5897170A (en) * | 1997-11-21 | 1999-04-27 | Rollerblade, Inc. | Skate wheel and method for making |
FR2800295B1 (en) * | 1999-11-02 | 2002-02-22 | Salomon Sa | SKATE WHEEL |
DE20007532U1 (en) * | 2000-04-26 | 2000-07-13 | Lee Chin Tsun | Wheel structure |
-
2001
- 2001-05-24 IT IT2001TV000067A patent/ITTV20010067A1/en unknown
-
2002
- 2002-05-23 US US10/312,758 patent/US20030168904A1/en not_active Abandoned
- 2002-05-23 WO PCT/EP2002/005671 patent/WO2002094395A1/en not_active Application Discontinuation
- 2002-05-23 EP EP02738101A patent/EP1289610A1/en not_active Withdrawn
- 2002-05-23 CN CN02801757A patent/CN1463198A/en active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO02094395A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2002094395A1 (en) | 2002-11-28 |
ITTV20010067A0 (en) | 2001-05-24 |
CN1463198A (en) | 2003-12-24 |
US20030168904A1 (en) | 2003-09-11 |
ITTV20010067A1 (en) | 2002-11-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20030168904A1 (en) | Wheel, particularly for skates. Rollers and the like | |
US5388625A (en) | Tire having tread with improved wear resistance | |
EP0642814B1 (en) | Wheel, particularly for skateboards or rollerskates | |
US5567019A (en) | Wheel for in-line roller skates | |
US5320418A (en) | Skate wheel structure | |
RU2001120366A (en) | PROTECTOR BRACELET OF DOUBLE STRUCTURE FOR TIRE | |
US5223065A (en) | Pneumatic tire | |
US5924705A (en) | Single-track roller skate and wheels for use therewith | |
US4130320A (en) | Wheel for roller skate or skateboard | |
US20050218712A1 (en) | Wheel structure | |
EP0873250A1 (en) | Tyre | |
JP3115585B2 (en) | Pneumatic radial tire | |
KR101516799B1 (en) | Two kinds of material inserted wheel | |
KR20190062373A (en) | Run-flat device | |
EP0750926B1 (en) | Skate wheel | |
WO2005110558A1 (en) | In-line skate wheel with detachable tires | |
US8562006B2 (en) | Inline skate wheel | |
JPS611508A (en) | Radial tire for truck or bus | |
JP2713710B2 (en) | Pneumatic tire and its mounting method | |
WO2008097338A1 (en) | In-line skates, skate wheels and wheel hubs | |
CA2755536C (en) | Inline skate wheel | |
CN220548885U (en) | Robot tire and robot | |
CN112013021B (en) | Roller skate and roller skate forming method | |
KR102523177B1 (en) | Roller typed wheel | |
US7309069B2 (en) | Roller assembly for an in-line roller skate |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20030107 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: CAPPELLETTI, MARIO Inventor name: POZZOBON, MICHELE Inventor name: FRIGO, FLAVIO |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20041201 |