(19) |
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(11) |
EP 1 163 938 A2 |
(12) |
EUROPEAN PATENT APPLICATION |
(43) |
Date of publication: |
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19.12.2001 Bulletin 2001/51 |
(22) |
Date of filing: 15.06.2001 |
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(51) |
International Patent Classification (IPC)7: A63C 17/12 |
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(84) |
Designated Contracting States: |
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AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
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Designated Extension States: |
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AL LT LV MK RO SI |
(30) |
Priority: |
15.06.2000 PT 10248100
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(71) |
Applicant: Seixas de Sarmento e Cunha, Luis |
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4405-420 S. Felix Da Marinha (PT) |
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(72) |
Inventor: |
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- Seixas de Sarmento e Cunha, Luis
4405-420 S. Felix Da Marinha (PT)
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(74) |
Representative: De Magalhaes Simoes, José Raul |
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Simoes, Garcia, Corte-Real & Associados - Consultores, Lda. Av. Estados Unidos de
América, No 131,7o-C 1700-173 Lisboa 1700-173 Lisboa (PT) |
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(54) |
Foot operated skateboard |
(57) THE CYCLIST SKATE is a mechanical vehicle to be driven by a person in vertical position,
with the feet laying on the pedals and the hands completely free. The vertical tipping movement of the pedals causes the displacing of the vehicle forwards.
The pedals have always the tendency to the take the highest position by action of
recovery springs. The movement direction of the vehicle is controlled through the lateral inclination
of the pedals.
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[0001] The cyclist skate is a mechanical vehicle without engine to be driven by a person
with the feet laying on the pedals and the hands completely free, which carry out
the vertical tipping movement of the pedals to drive the vehicle and the lateral inclination
of the pedals to control the displacement direction.
[0002] This vehicle combines the features of a sportive equipment normally designed by "skate"
which consists in a board mounted on wheels where the driver lays his feet and seeks
the balance in order to be able to move himself, with the features of the driving
of a bicycle which is normally carry out through a idle wheel system and gear wheels
that convert the rotating movement of the pedals into the traction movement of the
rear wheel.
[0003] The cyclist skate has two board type pedals that can perform each two movements that
are independent between each other: the vertical tipping movement and the lateral
inclination movement. That is, each pedal can, at the same time or not, perform the
two movements.
[0004] The vertical tipping movement of the pedals, responsible by the driving of the vehicle,
is converted through the driving system into rotating movement of the wheels, displacing
the vehicle forwards. In this movement, the two pedals work independently between
each other, that is, one of the pedals can move driving the vehicle while the other
is stopped or, alternatively, the two pedals can move simultaneously impelling both
the vehicle forwards. All these actions are performed by action of the driver feet
since the pedals have always the tendency to the take the highest position by action
of recovery springs. When the two pedals do not carry out the vertical tipping movement,
the cyclist skate moves freely without being driven.
[0005] The movement direction of the vehicle is controlled through the lateral inclination
of the pedals, with the vehicle moving to the right when the pedals are laterally
inclined to the right and vice versa. In this movement the two pedals work together,
that is, whenever a pedal is laterally inclined the other also follows that movement,
as they are mechanically connected by means of shafts.
[0006] All the mechanical systems are supported on a chassis which, in turn transfers all
the weight over the wheels.
[0007] An example of the cyclist skate will now be described with reference to the accompanying
drawings.
[0008] The constitutive components of the cyclist skate are indicated in figure 1 and are:
- Chassis 1
The tubular chassis is the structure that supports all the mechanical systems.
- Wheels 2
The front and rear wheels are equipped with tires and provide the best contact with
the irregularities of the ground and absorb the vibrations.
- Driving 3
The vertical tipping movement of the pedals is converted into rotating movement of
the rear wheel through a idle wheel system 8, followed by a set of mechanical gears
9 that establishes the best transmission rate.
The wheels are only driven when one of the pedals carry out the downward movement.
On the other hand, when the pedals are immobilised or return to the highest position
due to the action of the recovery springs 7 that roll up the transmission belts 6,
the system enters into idle wheel.
Figure 2 shows the driving 3.
- Pedals 4
As described in figure 3, each pedal is supported in the rear end on transmission
belts 6 and in the front end on a "Cardam" type articulation 10 that establishes the
axes of the tipping and lateral inclination movement of each pedal independent between
each other.
- Steering system 5
The joined lateral inclination movement of the pedals displaces the steering pitman
arms 11 that control the direction of the front wheel through the steering bars 12.
Figure 4 represents the steering system 5.
1. Cyclist skate comprised by a chassis (1) that supports the wheels (2), driving (3),
pedals (4) and steering system (5), characterised in that the driving (3) is constituted by an idle wheel system (8) and a set of mechanical
gears (9) that drive the wheels (2) when the pedals (4) moves downwards and in that the system enters into idle wheel when the pedals (4) are immobilised or return to
its highest position by action of the recovery springs (7).
2. Cyclist skate as claimed in claim 1, characterised in that the pedals (4) are supported on a "Cardam" type articulation (10) that enables each
pedal (4) to carry out simultaneously and independently the vertical tipping movement
and the lateral inclination movement.
3. Cyclist skate as claimed in claim 1, characterised in that the steering system (5) is actuated by the joined movement of lateral inclination
of both pedals (4), causing the steering pitman arms (11) to move which, in turn,
move the steering bars (12) of the front wheel.