Inline skates with two brakes used simultaneously

Inline skates with a braking system allowing the brakes to be used simultaneously. One embodiment of the invention comprises a frame 1 with a rear wheel carrier and a braking wheel carrier 6 rotatingly mounted on frame 1 through a first cylinder 29 and an axle 11 and interlocking through a notch 8 on a braking wheel carrier 6 and a fourth cylinder 9 on a first rear wheel carrier 7 while first rear wheel 4 and a braking wheel 5 are rotatingly mounted on their respective carriers 7, 6. Another mobile rear wheel 26 is handled by its carrier 30 rotatingly mounted on second cylinder 28 affixed to a frame 1. Breaking force is regulated through a screw 23 and a pair of friction cylinders 16. Carrier rotation limiting cylinders 10,17,31 are affixed to a frame 1. The front wheels 2, 3 are standard fixed wheels rotatingly mounted on a frame 1.

BACKGROUND OF THE INVENTION
 This invention relates to a special kind of inline skates featuring extra
 efficient braking system. Such skates are a sports requsite. As far as is
 known the inline skates with similar characteristics have never been
 invented or made.
 The object of this invention is to create a braking system for inline
 skates which makes it possible for two brakes to be used simultaneously.
 This invention is sharply contrasted to a single brake braking system with
 all its variations (see document U.S. Pat. No. 5,183,275) widely practiced
 today which is highly ineffective. Namely, it allows the skater to use one
 brake only ( during braking action) which causes the problem of balance.
 To solve the problem of balance, the skate mast use a brake up to 30-40%
 of its actual braking power.
 By contrast our braking system by putting to work two brakes ( at the same
 time) eliminates the problem of balance and allows both brakes to be used
 up to 100% of their braking potential from the very beginning of the
 braking action.
 SUMMARY OF THE INVENTION
 The main characteristic of inline skates with two brakes to be used
 simultaneously according to the invention is that they allow the skater to
 use both brakes at the same time during braking action. This kind of
 performance is achieved by the specific construction of the frame, the
 main feature of which is the introduction of the mobile rear wheel working
 closely with the mobile braking wheel during braking action. The said
 wheels are made mobile throurgh their respective rotating carriers. A pair
 of rear wheel carriers rotate around cylinders incorporated in the frame
 while a pair of braking wheel carriers rotate around the ends of the same
 axle. The carriers of both said wheels are interlocked during skating
 through the notch ( on the end ) of braking wheel carrier clutching (
 hooking ) the cylinder affixed to the rear wheel carrier. Once the braking
 action is over, both carriers are pushed back by their respective springs
 into their starting position to be interlocked eventually.

DESCRIPTION OF THE PREFERRED EMBODIMENT
 FIG. 1 Shows an inline skate with frame 1 affixed to the boot. First two
 front wheels 2, 3 positioned inline on the frame 1 are standard non fixed
 mobile wheels. They are followed by two rear (inline) mobile wheels 26, 4.
 A rear wheel 4 and a braking wheel 5 make up the braking system to be
 explained in detail.
 A first rear wheel carrier 7 is rotatingly mounted on a first cylinder 29
 affixed to a frame 1 (FIGS. 1,3). The first spring holders 14 are affixed
 to the inside of the frame 1 and to a first rear wheel carrier 7 holding a
 pair of first springs 13 the purpose of which is to push back a first rear
 wheel carrier 7 (once braking is completed) to their starting position (
 FIG. 1), till they touch a sixth cylinder 17 affixed to a frame 1 which
 limits their backward rotation. An axle 12 is affixed to a frame 1 through
 a pair of screws 24, and has fixedly mounted hallow cylinder 21 on with
 its mid section 20 (FIG. 3 ) ( notch ) against which one end of a pair of
 third springs 19 rests. A notch 8 on one end of a braking wheel carrier 6
 clutches a fourth cylinder 9 affixed to a first rear wheel carrier 7, to
 keep a rear wheel 4 firmly in its working position during skating. On the
 rear end of the frame 1 there is a braking wheel carrier 6 rotatingly
 mounted on end of an axle 11 which is fixedly mounted on a frame 1 through
 a pair of screws 25.
 A pair of third springs 19 (FIG. 2) is mounted on an axle 11, resting with
 one end against a notch 20 of a hollow cylinder 21 and with other end
 against third spring holders 15 affixed to a braking wheel carrier 6. By
 pushing a braking wheel 5 to the ground (mounted on one end of a braking
 wheel carrier 6) a pair of third springs 19 help a first rear wheel
 carrier 7 and a braking wheel carrier 6 interlock once braking action is
 completed. A braking wheel 5 is rotatingly mounted on an axle 22 and
 constantly pinched with a pair of rubber cylinders through a screw 23
 which regulates a braking force of each brake. A first rear wheel carrier
 7 and a braking wheel carrier 6 are interlocked during skating (FIG. 1)
 through a notch 8 ( on a braking wheel carrier 6 ) clutching a fourth
 cylinder 9 affixed to a first rear wheel carrier 7.
 A third inline wheel 26 is mobile and is rotatingly mounted between a pair
 of its carriers 30 also rotatingly mounted on a second cylinder 28 affixed
 to a frame 1. During skating a second rear wheel carrier 30 rests against
 a pair of seventh cylinders 31 affixed to a frame 1 due to an angle
 between the ground and a second rear wheel carrier 30. Once braking is
 completed a pair of second springs 32 push back a second rear wheel
 carrier 30 till it touches a seventh cylinder 31 (FIG. 1). Second spring
 holders 33 affixed to the inside of frame 1 and a second rear wheel
 carrier 30 hold a pair of second springs 32. How the braking system works?
 During skating (FIG. 1) a braking wheel 5 is above the ground and a first
 rear wheel carrier 7 and a braking wheel carrier 6 are interlocked through
 their respective parts, a fourth cylinder 9 and a notch 8. A second rear
 wheel carrier 30 under the body weight of an angle between a second rear
 wheel carrier 30 and the surface rests against a seventh cylinder 31. To
 engage the brakes the skater should lift the front wheels 2, 3 of both
 skates. As result, the braking wheels 5 touches the ground and their
 carriers 6 start to rotate around an axle 11 counter clockwise till the
 braking wheel carriers 6 touch fifth cylinders 10 affixed to a frame 1.
 The said rotation of a braking wheel carrier 6 allows its notch 8 to
 release a fourth cylinder 9 of a first rear wheel carrier 7. As result,
 under the body weight a first rear wheel carrier 7 starts to rotate
 clockwise around a first cylinder 29 while a first rear wheel 4 starts
 pushing a second rear wheel 26 also clockwise. During the braking action
 the skating is done on a front wheel 3 and a braking wheel 5 while the
 body weight is almost entirely on a braking wheel 5 because the mobile
 wheels 26, 4 get disengages rotatingly idly. Once braking is completed the
 skates get lifted ( one at the time) off the ground which causes second
 springs 32, first springs 13 and third springs 19 to push their respective
 wheel carriers 30,7,6 into their working positions (FIG. 1) while first
 rear wheel carriers 7 and braking wheel carriers 6 get interlocket again
 as result.