FR2620038A1 - Roller skates propelled by a thermal engine (motor) - Google Patents

Abstract

Device for propelling roller skates with the aid of a thermal engine (motor). The invention relates to a device making it possible to transmit the movement of a thermal engine (motor) to the rear wheels of roller skates. It consists of a transfer casing 2 fitted on an engine (motor) 1. This transfer casing has an input shaft and two output shafts transmitting, via cables rotating in sheaths 6 and 6', the movement of the engine (motor) to the speed reducers (reducing gears) 3 and 3' on which the rear wheels of the roller skates are mounted. The device according to the invention may be fitted onto skateboards.

Description

The present invention relates to a device for propelling roller skates using a heat engine.

 I1 indeed comprises a transfer case adapting to a heat engine. This case which has a primary shaft composed of a toothed wheel is connected to the clutch of the present motor. The primary shaft transmits the movement to two others shafts with identical gear wheels to his own. These two other shafts are connected to speed reducers by cables that rotate inside sheaths connected to the reduction gear cards and the transfer case. These cables transmit the movement to shafts having toothed wheels meshing with other wheels of a larger diameter, making up the output shafts of the reducers, on which are mounted r-oues in contact with the ground. are mounted at the location of the rear wheels of the roller skates. the heat engine is held on the user's back by straps connected to a light alloy chassis.

The device according to the invention can be adapted to skateboards.

The accompanying drawings illustrate the invention:
Figure I shows the device according to the invention.

Figure 2 shows a front view of the transfer case
FIG. 3 represents a top view in section of the transfer case with the sheaths and the transmission shafts.

Figure 4 shows a sectional view of the two half housings of a speed reducer
Figure 5 shows a half speed reducer housing with all of its operating mechanism.

 Figure 6 shows a view of a speed reducer mounted at the rear of a roller skate.

the device shown in the figures from I to 5 includes a thermal gauge I (known type of thermal engine) on which a transfer case 2 fits which is assembled thanks to the holes 37,38,39,40 drilled on the casings 27 and 24 which contain ball bearings 25,26,27,28,29, 30 supporting the shafts 20, 21, 22. The shaft 20 serves to support a finger preventing the loss of the lubricant used for the proper functioning of the device. the shafts 21 and 22 have a thread allowing connection with the cables 5.5 ′ which rotate inside the sheaths 6 and 6 ′.

These sheaths are connected to the casing of the transfer case 24 comprising the holes 32, 33, 34, 35, and to the casings of the speed reducers 3.3 ′. The speed reducers consist of two half casings each I5, I6 ei15 ' , 16 'which contain the ball bearings 8,11,12,17,8', 11 ', 12', 17 '
These bearings support the shafts 4,7 and 4 ', 7'.

The shafts 7 and 7 ′ have a thread allowing connection with the transmission cables, and a toothed wheel meshing with another larger one belonging to the shafts 4 and 4 ′ on which seals 9, 10 and 9 ′ are supported, 10 '. The trees and and 4 have. threads for mounting the wheels 13,14,13'14 'held in place by nuts 18,19,18', 19 '
The speed reducers are mounted at the location of the rear wheels of the roller skates.

The device according to the invention can be adapted to skateboards. It is particularly intended to reduce the efforts of the user of roller skates, while increasing speed performance.

Claims (7)

I transmitting by force the force of this motor to reducers (3 and 3 ') adapting to the rear of roller skates. I) Device for propelling roller skates using an internal combustion engine in that it includes a transfer case 2 mounted on an engine 2) Device according to claims I characterized in that the transfer bolt, comprises a shaft (20) in connection with the clutch of the engine. 3) Device according to claim 1 or 2 characterized in ee that the shaft (20) is provided with a toothed round meshing with the toothed wheels of the shafts (21) and (22). 4) Device according to claim 3 characterized in that the shafts 21,22 have das threads allow connection with the cables (5 and 5 '). 5) Device according to any one of the preceding claims, characterized in that the transmission cables rotate inside the sheaths (6 and 6 ') in lisison with the transfer case and the speed reducers (3 and 3') . 6) Device according to the preceding claims characterized in that the speed reducers (3 and 3 ') comprising shafts (7,7') composed of a filtering for the connection with the transmission cables, and a toothed wheel meshing on another year larger diameter making up the trees (4,4 '). 7) Device according to the preceding claims taken as a whole, characterized in that the shaft (4) and the shaft 4 ′ @ ossendent threads on which nuts (18,19,18 ', 19') are now wheels (13,14,15 '@ 4) in contact with the salt.