EP0997170A2 - Suspension élastique pour patin à roulettes - Google Patents

Suspension élastique pour patin à roulettes Download PDF

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Publication number
EP0997170A2
EP0997170A2 EP99117526A EP99117526A EP0997170A2 EP 0997170 A2 EP0997170 A2 EP 0997170A2 EP 99117526 A EP99117526 A EP 99117526A EP 99117526 A EP99117526 A EP 99117526A EP 0997170 A2 EP0997170 A2 EP 0997170A2
Authority
EP
European Patent Office
Prior art keywords
wheel
frame
roller skate
skate
bogie
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Withdrawn
Application number
EP99117526A
Other languages
German (de)
English (en)
Other versions
EP0997170A3 (fr
Inventor
Tiziano Nava
Luca Poggiali
Giovanni Zaffaroni
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.)
Fbc Di Giuliano Frati & Csnc
Original Assignee
Fbc Di Giuliano Frati & Csnc
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 Fbc Di Giuliano Frati & Csnc filed Critical Fbc Di Giuliano Frati & Csnc
Publication of EP0997170A2 publication Critical patent/EP0997170A2/fr
Publication of EP0997170A3 publication Critical patent/EP0997170A3/fr
Withdrawn legal-status Critical Current

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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
    • A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
    • A63C17/06—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type
    • A63C17/061—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type with relative movement of sub-parts on the chassis
    • A63C17/062—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type with relative movement of sub-parts on the chassis with a pivotal frame or cradle around transversal axis for relative movements of the wheels
    • 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
    • A63C17/0046—Roller skates; Skate-boards with shock absorption or suspension system

Definitions

  • the present invention refers to a roller skate, in particular a roller skate with in-line wheels, provided with independent elastic suspension means.
  • the width of the bogie at the point where the wheels are journaled is the same as the width of the same bogie at the point where the brackets are pivotally attached to the frame, so that the skate turns out to be very sensitive to possible vibrations in a direction which is orthogonal to the rolling direction.
  • the elastic suspension characteristics of the skate can be adjusted to fit the physical structure of the skater, but this can only be done by correspondingly replacing all of the springs.
  • the US patent no. 5,575,489 describes a roller skate with in-line wheels mounted elastically on the frame.
  • Each wheel is connected to the frame by means of an axle, while on both sides of the wheel there are mounted respective elastic means, in particular springs, that are inserted in appropriate cavities of the frame and act against the end portion of the axle.
  • the main drawback of this solution derives from the fact that the elastic means act directly against the axle of the wheel also in a differential manner, thereby bringing about a considerable instability of the skate.
  • other drawbacks can be noticed to still persist, such as for instance the practical impossibility for the suspensions to be adjusted without first replacing the elastic means.
  • roller skate in particular a roller skate with in-line wheels, provided with elastic suspension means which is more rational, simpler and more and compact, both lengthwise and widthwise, than prior-art roller skates.
  • a further purpose of the present invention is to provide suspensions means that are capable of being adjusted, without any need arising for the elastic elements to be replaced, in order to easily adapt them to fit the characteristics of both the skater and the rolling ground.
  • a roller skate comprising a rigid frame in which there are journaled a plurality of wheels in an in-line arrangement, so as to be capable of rotating about respective horizontal axes, wherein each wheel is associated to a pair of vertical-axis compression springs that mounted at the sides of the same wheel and act against the frame of the skate.
  • the skate is substantially characterized in that each wheel is journaled in the lower end portion of a floating bogie whose upper end portion is hinged on to the frame of the skate, whereas each spring of said pairs of springs is compressed between the frame and the lower end portion of the bogie on which the respective wheel is journaled.
  • the skate 10 is a skate with five wheels 11 provided in an in-line arrangement and journaled on a rigid frame 12 (Figs. 1 and 2).
  • the actual number of the wheels of the skate is not critical or binding.
  • Each wheel 11 is provided with independent elastic suspension means and is connected to the frame 12 through a floating bogie 13.
  • Each bogie 13 is formed by two arms 14 (Figs. 3 and 4), the lower end portions of which are connected to each other by a horizontal-axis axle 15 arranged orthogonally to the frame 12.
  • the axle 15 is provided with a screw head portion 16 or may otherwise be threaded so as to allow for the wheel 11 to be quickly assembled and removed.
  • each bogie 13 The upper end portions of the arms 14 of each bogie 13 are pivotally connected to a horizontal-axis axle 17 passing through the frame 12 in a direction that is orthogonal to such a frame 12.
  • Each axle 17 is provided with a locking head 18 that enables each bogie to retain its position and alignment with respect to all other bogies of the other wheels 11.
  • the through-passing axle 17 is provided with a shoulder 19 adapted to abut against a check 20 provided in correspondence of the bore through which the axle 17 passes through the frame 12 ( Figure 4).
  • each axle 17 lies at a lower level than the one of the upper extremity of the circumference or rim of the respective wheel 11.
  • the frame 12 of the skate is preferably made using a C-shaped profile section with its flanges facing downwards, and is provided on its upper flat portion 30 with a plurality of through-apertures 21 ( Figure 2).
  • Each such aperture 21 corresponds to a wheel 11.
  • the shape and the dimensions of the bogies 13 carrying the wheels 11 are such as to enable the upper extremity of the circumference or rim of each wheel to extend upwards beyond the surface of the frame 12 by passing through the corresponding aperture 21.
  • Two resting means 22 and 23 ( Figures 1 and 4) are provided prominent on the same frame 12 for the boot of the skater to rest upon and prevent the sole of the boot from interfering with the wheels.
  • the linearity and uniformity of the frame, along with the particular conformation of the bogies, enable a further advantage to be obtained, which derives from the possibility for the geometry of the above described skate to be most easily varied.
  • the wheel-carrying bogies 13 can be most clearly noticed (Figure 1) to be able to be mounted on the frame 12 in an opposite direction with respect to the illustrated one, ie. with the wheel journaling axles 15 arranged, with respect to the forward moving direction of the skate (from the right to the left in Figure 1), before (instead of after) the axles 17 used to journal the bogies on the frame.
  • the system of independent elastic suspension means of the wheels 11 comprises two compression springs 24 ( Figures 1 and 3) for each wheel, which are inserted in the frame 12 at the sides of the respective wheel.
  • the springs 24 are arranged with their axis substantially vertical and co-planar with the axis of the axle 15 of the wheel 11.
  • the springs 24 act between a check 25, attached to the lower surface of the upper flat portion 30 of the frame, and a plane abutment means 26 provided at the lower end portions of the arms 14 of the wheel-carrying bogie 13. In correspondence of said abutment means 26 there is attached a boss 27 adapted to ensure the correct positioning of the extremity of the spring.
  • the abutment 26 provided for each spring on the respective arm 14 of the bogie 13 is located at a level comprised between the level of the axle of the wheel and the level of the upperv extremity of the circumference or rim of the wheel.
  • each wheel 11 is journaled on to a bogie 13 which is in turn journaled in the frame 12, and the springs 24 are so provided as to act between the frame and the wheel-carrying bogie, enables, also owing to the particular shape of the bogie 13, the overall height of the skate to be reduced, thereby increasing the compactness of its structure and its stability when rolling.
  • the springs 24 are provided with screws 28 for setting, ie. adjusting the compression thereof so as to be able to adapt the elastic suspension system of the skate to the characteristics of both the skater and the ground.
  • the screws 28 are preferably of the type that passes through the upper check 25 of the springs, and are arranged with their axis oriented vertically in view of making it easier and more convenient for them to be actuated.
  • the elastic suspension system according to the invention does away with the need for wheels provided with any considerable rubber-tireing to be used, thereby making it possible for following further advantages to be obtained: a reduction in gyroscopic masses, a reduction in energy losses due to deformations of the rubber-tires of the wheels, a reduction in rolling friction thanks to more rigid wheels.
  • the roller skate according to the present invention lays itself open to a further, final consideration.
  • the frame 12 has a greater width than the frames of prior-art skates.
  • this greater width of the frame 12 is counterbalanced by an extremely reduced height thereof Therefore, when the skater takes a bend, and leans over to a slanting position in order to follow the trajectory, it will always and in any case be the boot that enters into contact with the ground in advance of the frame.

Landscapes

  • Friction Gearing (AREA)
  • Motorcycle And Bicycle Frame (AREA)
EP99117526A 1998-10-28 1999-09-04 Suspension élastique pour patin à roulettes Withdrawn EP0997170A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPN980077 1998-10-28
ITPN980077 IT1305278B1 (it) 1998-10-28 1998-10-28 Pattino a rotelle, con sospensioni elastiche.

Publications (2)

Publication Number Publication Date
EP0997170A2 true EP0997170A2 (fr) 2000-05-03
EP0997170A3 EP0997170A3 (fr) 2002-06-26

Family

ID=11395435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99117526A Withdrawn EP0997170A3 (fr) 1998-10-28 1999-09-04 Suspension élastique pour patin à roulettes

Country Status (2)

Country Link
EP (1) EP0997170A3 (fr)
IT (1) IT1305278B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003002219A1 (fr) * 2001-06-27 2003-01-09 Young-Hwan Kim Systeme de fixation de chassis de roues pour patins a roulettes en ligne
KR20040014019A (ko) * 2002-08-09 2004-02-14 강성광 인라인 스케이트
FR2911300A1 (fr) * 2007-01-17 2008-07-18 Edmond Angosto Dispositif pour le controle du systeme de suspensions pour diminuer et eliminer les secousses lors du passage sur des irregularites presentes sur le sol

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552987A (en) 1947-05-26 1951-05-15 Jr Fred Loertz Roller skate
US5503413A (en) 1994-10-31 1996-04-02 Pavel Belogour In-line roller skates with suspension
US5575489A (en) 1993-03-22 1996-11-19 Oyen; Gerald O. S. Shock absorbent in-line roller skate
US5582418A (en) 1995-03-21 1996-12-10 Closser; David A. Wheel suspension/braking apparatus and method for in-line roller skates

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5398949A (en) * 1991-03-01 1995-03-21 Tarng; Min M. Tangs figure-blade roller skate
US5704621A (en) * 1995-09-26 1998-01-06 Lazarevich; Ronald S. Suspension system for an in-line roller skate

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2552987A (en) 1947-05-26 1951-05-15 Jr Fred Loertz Roller skate
US5575489A (en) 1993-03-22 1996-11-19 Oyen; Gerald O. S. Shock absorbent in-line roller skate
US5503413A (en) 1994-10-31 1996-04-02 Pavel Belogour In-line roller skates with suspension
US5582418A (en) 1995-03-21 1996-12-10 Closser; David A. Wheel suspension/braking apparatus and method for in-line roller skates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003002219A1 (fr) * 2001-06-27 2003-01-09 Young-Hwan Kim Systeme de fixation de chassis de roues pour patins a roulettes en ligne
KR20040014019A (ko) * 2002-08-09 2004-02-14 강성광 인라인 스케이트
FR2911300A1 (fr) * 2007-01-17 2008-07-18 Edmond Angosto Dispositif pour le controle du systeme de suspensions pour diminuer et eliminer les secousses lors du passage sur des irregularites presentes sur le sol

Also Published As

Publication number Publication date
IT1305278B1 (it) 2001-04-19
ITPN980077A1 (it) 2000-04-28
EP0997170A3 (fr) 2002-06-26

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