| US2048916A | ||||
| US5232231A | ||||
| US5342071A | ||||
| US20050161294A1 |
| Claims
Brake system is performed by pivotally mounted wheel frames which are divided and perform see-saw movement, and the see-saw movement of wheel frames or main frame induce resistance between wheels and brake pads which are installed at front-end and rear-end of the main frame, and horizontal deep grooves to support the vertical divided wheel frames. |
Title; Brake system by see-saw movement for in-line roller skate
Field of search;
References cited
6955360 Oct 2005 Krivulin
6948723 Sep 2005 Bellehumeur etal
6874794 Apr 2005 Holland
6729628 May 2004 Bellehumeur etal
6666462 Dec 2003 Bellehumeur etal
6598887 July 2003 Haldemann
6478312 Nov 2002 Petrucci etal
6435525 Aug 2002 Penicaut
6279921 Aug 2001 Bozinovic zoran
6273436 Aug 2001 Repucci
6217038 Apr 2001 Moe
6131920 Oct 2000 Roman etal
6098997 Aug 2000 Cheng
6089579 July 2000 Pellegrini jr. etal
5791665 Aug 1998 Mayer 11
5758884 Jun 1998 Flater
5755450 May 1998 ElHs etal
5752707 May 1998 Cottle etal
5551712 Sep 1996 Repucci
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5486011 Jan 1996 Nelson
5183275 Feb 1993 Hoskin
5088748 Feb 1992 Koselka etal
Description
Background of invention
This invention provide speed reduction of all directions for in-linfe roller skate.
Background of invention — prior art
It is difficult to reduce speed in-line skate. Specially when they ride sideways or backward, speed reduction is more difficult. They just 1 WaIt to stop, or push cars or peoples to stop.
Background of invention — This invention
This invention provide slow or fast stop in any directions, forward, backward or sideways.
Description of drawings Fig 1 Overall side-view Fig 2 Explored view Fig 3 Detailed invention side-view Fig 4 Bottom- side view of main frame
Drawing-7-reference numerals 10 skate boot 12 stripers of boot 14 string ties
16 main frame
17 rivets
18 front wheel hold frame 0 rear wheel hold frame 22 bearing loaded wheel
24 truncated nut for wheel frame
25 screw(bolt)
26 truncated nut for wheel
27 screw(bolt)
30 frame hold spring
32 screw for spring
34 screw for brake pad
36 screw retainer for brake pad
38 nut in brake pad
40 brake pad
Detailed description of the invention
Main frame is made with hard plastic. Front-end and rear-end of the main framg have rubber-made brake pads40. Said brake pad contain nut38. Screw34 is fixed in main frame by screw retain washer36.
Main frame have horizontal grooves 15 from end of front brake to begin of rear brake for holding and supporting two pair of wheel frames 18,20. Main frame is attached to boot by rivets 17. The main frame and two pairs of wheel frames are connected by truncated nuts24 and screws25. wheel frames are two pairs of vertical aluminum panels for front side and rear side.
Each wheel frame have two bearing loaded wheels22 which installed with truncated nuts26 and scews27. Spring30 which attached at both side of center of the mainframe are connected to upper center of wheel frames.
Operation of the invention
In order to reduce speed, move your right or left foot approximately one foot to forward and sideways for body balance, then lift up toe of front-foot and heel of rear-foot simultaneously, thus front and rear brake pads are press to the corresponding wheel by see-saw movement of mainframe or wheel frame. If you lift toe or heel hard, press force is bigger. When you ride forward, backward or sideways, lift up toe and heel or toe and toe or heel and heel, brake action. is performed.