US5374071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foot supporting rolling device with speed reducer and brake
Assignee: Jenex Inc
•
Filing: 1993-05-04
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Granted: 1994-12-20
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Expires: 2013-05-04
Abstract
Abstract A rolling device such as a roller ski or in-line skate that uses a roller of a hard material with the roller mounted to the frame of the roller ski or in-line skate in such a manner that it can be forcibly moved to contact the elastomeric wheel of the roller ski or in-line skate, causing the softer elastomeric material of the wheel to displace about the harder roller, resulting in a significant increase in rolling resistance with minimum frictional wear. A roller ski or in-line skate that uses, in conjunction with the aforementioned roller, a lever actuated brake permitting the roller ski or in-line skate to be stopped on down hill slopes.
Inventors
- 👤 Lennart B. Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:46
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/04; A63C17/045; A63C17/14; A63C17/1409
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
258 words
A foot-supporting rolling device comprising: a foot supporting structure for supporting a user's foot, first and second wheels rotatably mounted on said foot supporting structure, said first wheel being made of elastomeric material of a first hardness, and a roller mounted on said foot supporting structure in such a fashion that it can be forced against said first wheel so as to provide a resistance to the rotation of the wheel, further comprising a first movable member mounted on said foot supporting device and carrying said roller thereon, said first movable member being movable between positions in which the axis of said roller is at different distances from the axis of said first wheel wherein said first movable member has a plurality of different speed reducing positions in which said roller contacts said first wheel, the axis of said roller being at different distances from the axis of said first wheel in said different speed reducing positions, said different speed reducing positions providing different wheel rolling resistances, wherein said first movable member is lockable into said different speed reducing positions, wherein said first movable member is pivotally mounted on said foot supporting structure, and wherein a second movable member locks said first movable member in said different positions, and wherein said second movable member is pivotally mounted about a second member axis and has a plurality of contact surfaces that contact said first movable member at a contact member thereof when in said different positions, said contact surfaces being at different radial distances from said second member axis.
Claim 2
Dependent Claim
258 words
A foot-supporting rolling device comprising: a foot supporting structure for supporting a user's foot, first and second wheels rotatably mounted on said foot supporting structure, said first wheel being made of elastomeric material of a first hardness, and a roller mounted on said foot supporting structure in such a fashion that it can be forced against said first wheel so as to provide a resistance to the rotation of the wheel, further comprising a first movable member mounted on said foot supporting device and carrying said roller thereon, said first movable member being movable between positions in which the axis of said roller is at different distances from the axis of said first wheel wherein said first movable member has a plurality of different speed reducing positions in which said roller contacts said first wheel, the axis of said roller being at different distances from the axis of said first wheel in said different speed reducing positions, said different speed reducing positions providing different wheel rolling resistances, wherein said first movable member is lockable into said different speed reducing positions, wherein said first movable member is pivotally mounted on said foot supporting structure, and wherein a second movable member locks said first movable member in said different positions, and wherein said second movable member is pivotally mounted about a second member axis and has a plurality of contact surfaces that contact said first movable member at a contact member thereof when in said different positions, said contact surfaces being at different radial distances from said second member axis.
Claim 3
Dependent Claim
21 words
The rolling device of claim 1 wherein said roller is made of material that has hardness greater than said first hardness.
Claim 4
Dependent Claim
20 words
The rolling device of claim 2 wherein said roller is narrower than said wheel and is forced into said wheel.
Claim 5
Dependent Claim
25 words
The rolling device of claim 1 wherein said first movable member has a neutral position in which said roller does not contact said first wheel.
Claim 6
Dependent Claim
30 words
The rolling device of claim 1 wherein said contact surfaces are at indentations that are movable into and out of contact with said contact member by pivoting said second member.
Claim 7
Dependent Claim
25 words
The rolling device of claim 5 wherein said first movable member is spring biased against said second movable member and away from said first wheel.
Claim 8
Dependent Claim
26 words
The rolling device of claim 1 wherein said foot supporting structure includes a binding for engaging a boot, and said rolling device is a roller ski.
Claim 9
Dependent Claim
29 words
The rolling device of claim 1 wherein said foot supporting structure includes a boot for receiving a user's foot therein, and said rolling device is an in-line roller skate.
Claim 10
Dependent Claim
14 words
The rolling device of claim 1 wherein said first wheel is a front wheel.
Claim 11
Dependent Claim
14 words
The rolling device of claim 1 wherein said first wheel is a rear wheel.
Claim 12
Dependent Claim
15 words
The rolling device of claim 1 further comprising a brake that engages said second wheel.
Claim 13
Dependent Claim
69 words
The rolling device of claim 11 where said second wheel is made of elastomeric material of a second hardness, and wherein said brake includes a brake pad made of material that has hardness greater than said second hardness, said brake pad being movably mounted with respect to said second wheel in such a manner that the brake pad can be forced against the outer diameter of said second wheel.
Claim 14
Dependent Claim
27 words
The rolling device of claim 12 wherein said brake includes a lever that is pivotally mounted on said foot supporting structure, said lever supporting said brake pad.
Claim 15
Dependent Claim
31 words
The rolling device of claim 13 further comprising a cable connected to said lever such that pulling on said cable causes said brake pad to be forced against said second wheel.
Claim 16
Dependent Claim
32 words
The rolling device of claim 14 wherein the lever is so configured that, when the cable is pulled, the force at the brake pad is greater than the force at the cable.
Claim 17
Dependent Claim
23 words
The rolling device of claim 15 wherein the brake pad has a neutral position in which it does not contact said second wheel.
Claim 18
Dependent Claim
48 words
The rolling device of claim 14 wherein said cable is coiled in such a manner that it self-retracts, yet uncoils with sufficiently low resistance so that body movements of the user on said rolling device do not to interfere with the user's motion or inadvertently activate the brake.
Claim 19
Dependent Claim
38 words
The rolling device of claim 17 further comprising a leg strap attached to said cable wherein the coiled cable is attached to the user via said leg strap secured on the leg, either above or below the knee.
Claim 20
Dependent Claim
52 words
The rolling device of claim 18 of further comprising a pliable plastic insert entrapped by the leg strap and, protruding in perpendicular fashion from the leg strap, which retains the cable and a looped grip attached to said cable in such a manner that it can easily be activated by the user.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-19 | 1998-06-20 | 1998-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-19 | 2002-06-20 | 2002-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-19 | 2006-06-20 | 2006-12-20 | $7700.00 | Window Closed / Lapsed |