Skate Braking System
A skate braking system includes a first wheel mount for holding wheels and a second wheel mount for holding additional wheels. A mounting plate is pivotally attached to the first and second wheel mounts. A first side brake mount for holding a first side brake pad and a second side brake mount for holding a second side brake pad are coupled to the mounting plate. The first side brake pad engages a skating surface when the mounting plate is tilted laterally in a first direction relative to the wheel mounts. The second side brake pad engages the skating surface when mounting plate is tilted laterally in a second direction opposite the first direction. The braking system may further include a biasing device for urging the mounting plate to have a normal orientation at which the first and second side brake pads do not engage the skating surface.
This application claims the benefit of U.S. Provisional Application No. 60/731,581, filed Oct. 31, 2005, the contents of which are hereby incorporated by reference.
FIELD OF THE INVENTIONThe invention relates generally to wheeled skates, and in particular, to wheeled skates with brakes.
BACKGROUND OF THE INVENTIONMany people find it difficult to learn how to use wheeled skates, such as roller skates and in-line skates. Being able to slow down and stop is critical to maintaining control in order to avoid obstacles and prevent injury. A common technique for slowing down and stopping, referred to as a “T-stop,” requires that the skater balance himself or herself on one skate while still moving forward, and positioning the other skate backward to form a ninety degree angle with the forward moving skate. In a “V-stop,” the skater uses both feet to form a V-shape so that the skates converge onto each other, or diverge from each other, in order to slow down and eventually stop. Both T-stops and V-stops feel awkward to a novice skater, which makes these techniques difficult to master. Also, these techniques may not allow a skater traveling at a high speed to slow down and stop within a short distance.
Various types of brakes have been developed to help the skater slow down and stop. Conventional roller skates have a forward brake pad, known as a toe stop, which can be dragged on the ground. To use the toe stop, the skater shifts most or his or her weight on one skate while moving forward, and positions the other skate backward and slants it so that the rear wheels are lifted off the ground. Rear brake pads or heel stops have also been attached to in-line skates or roller blades. With a heel stop, the skater positions the “braking” skate forward and slants it so that the forward wheels are lifted off the ground.
Braking systems have also been developed with a brake pad that engages a wheel to effect slowing down and stopping. Such braking systems may require special wheels or brake disks connected to the wheels, or may require the cuff of a tall boot to be used to engage the brake pad. These braking systems also may not allow the skater traveling at high speed to slow down and stop quickly.
In-line skates with side-mounted brakes are also known and may be used to effect a “hockey stop” or “side stop,” a technique analogous to that used by ice skaters to stop. With known skates having a side-mounted brake, the skater must shift much of his or her weight to one side or tilt the wheels of the skate at an angle to the ground, which can feel awkward or uncomfortable.
A need exists for a braking system that can be used with a variety of foot platforms, such as a shoe, boot, or a board. A need also exists for a braking system that can be used with conventional wheels and with readily available stops or brake pads. A need also exists for a braking system that allows the skater to slow down or stop quickly with a natural and relaxed motion. A need also exists for a braking system that can be easily adjusted to suit a skater's skating style or skill level.
The features and advantages of the invention will be more readily understood from the following detailed description which should be read in conjunction with the accompanying drawings.
SUMMARY OF THE INVENTIONBriefly and in general terms, the present invention is directed to skate braking system that can be used with roller skates, in-line skates, skate boards, and other types of wheeled skates to allow the rider to slow down or stop. The braking system comprises a first wheel, a mounting plate, and a first side brake mount. The first wheel mount is adapted to rotatably hold a first wheel about a first rotational axis. The mounting plate is pivotally attached to the first wheel mount so as to permit the mounting plate tilt. The first side brake mount is adapted to hold a first side brake pad for engaging a skating surface contacting the first wheel. The first side brake mount is coupled to the mounting plate such that the side brake pad engages the skating surface when the mounting plate is tilted.
In other aspects of the present invention, the first side brake mount is adjustably coupled to the mounting plate. The first side brake mount has an adjustment device configured to selectively secure the first side brake mount to the mounting plate in a plurality of orientations including a first orientation in which the first side brake pad engages the skating surface when the mounting plate is tilted through a first angle, and a second orientation in which the first side brake pad engages the skating surface when the mounting plate is tilted through a second angle less than the first angle.
Other aspects of the invention may further comprise a second side brake mount adapted to hold a second side brake pad for engaging the skating surface. The second side brake mount is coupled to the mounting plate such that the second side brake pad engages the skating surface when the mounting plate is tilted in a direction opposite the first direction.
In detailed aspects, the mounting plate may be pivotally coupled to the first wheel mount at a tilt axis located closer to the skating surface than the first rotational axis. The system may further comprise a support member and a rod. The support member is fixedly attached to the mounting plate, is disposed between the first and second wheel mounts, and is pivotally attached to both the first and second wheel mounts about a bore formed through the support member. The rod includes a rod including a forward portion attached to the first wheel mount and a rear portion attached to the second wheel mount. The rod extends through the bore formed through the support member.
The braking system may, in further aspects, comprise a tilt sensitivity adjustment device that includes a threaded member in thread engagement with the rear portion of the rod. Preferably, the threaded member is configured to be rotated so as to move axially in relation to the rod. The threaded member is preferably further configured to push the second wheel mount toward the first wheel mount, thereby altering compression applied by the first and second wheel mounts to the support member.
In yet other aspects of the present invention, the mounting plate has a normal orientation in which the first side brake pad does not engage the skating surface, and the braking system further comprises a biasing device configured to urge the mounting plate to the normal orientation when the mounting plate is tilted laterally away from the normal orientation. Preferably, the biasing device comprises a spring member having a first end constrained within a slot formed in the mounting plate and a second end fixedly attached to the first wheel mount. The first end of the spring member is configured to move within the slot. The biasing device may comprise at least one flat plate formed of a resilient material configured to flex so as to allow the mounting plate to tilt laterally.
Referring now in more detail to the exemplary drawings for purposes of illustrating embodiments of the invention, wherein like reference numerals designate corresponding or like elements among the several views, there is shown in
The braking system 10 includes a forward wheel mount 22 adapted to rotatably hold a forward left wheel 24 having a first rotational axis 26 that extends laterally. The forward wheel mount 22 is also configured to hold a forward right wheel 28 along the first rotational axis so as to be coaxial with the forward left wheel. The braking system 10 also includes a rear wheel mount 32 adapted to rotatably hold a rear left wheel 34 having a second rotational axis 36 that also extends laterally. The rear wheel mount 32 is also configured to hold a rear right wheel 38 along the second rotational axis so as to be coaxial with the rear left wheel. The rotational axes of the wheels are substantially perpendicular to the longitudinal axis 20 and the tilt axis 114 of the mounting plate 12. It is to be understood that the wheels are oriented to roll in a generally longitudinal direction 21. As described in detail below, the forward and rear wheel mounts 22, 32 are pivotally attached to the mounting plate 12 so as to permit the mounting plate to tilt laterally about the tilt axis 114 relative to a skating surface 28 (
Other embodiments of the present invention may have only one wheel mount configured to rotatably hold a plurality of wheels or may have more than two wheel mounts each configured to rotatably hold one or more wheels. In some embodiments, the wheels are arranged front-to-back, not side-to-side, in a manner similar or identical to in-line skates. The wheels may, in other embodiments, have a spherical, hemispherical, or other shape.
In
The forward and rear spring members 40, 46 are each preferably formed of a flat piece of resilient material configured to flex so as to allow the mounting plate 12 to tilt to one side or the other while the forward and rear wheel mounts 22, 32 and the wheels 24, 30, 34, 38 maintain their orientation relative to the skating surface 28. Suitable examples of a resilient material include without limitation metals, elastomers, plastics, fiber reinforced composites, and combinations thereof. The spring members 40,46 are shown in
Referring now to
With continued reference to
The rear wheel mount 32 includes a rear brake support 136. A rear brake mount 138 is pivotally attached to the rear brake support 136 and is secured in a selected position by a spring loaded adjustment device having a rear adjustment pin 140 that extends through the rear brake mount and into one of a plurality of apertures 142 in the rear brake support. The rear brake mount 138 is configured to hold a rear brake pad 144. An adjustment knob 146 is connected to the rear adjustment pin to allow a rider to quickly and easily change the position of the rear brake mount 138 so as to adjust the height level of the rear brake pad 144 relative to the skating surface 28. In other embodiments, the forward and rear brake mounts 126, 138 may be secured in selected positions by other types of devices known in the art, such as a threaded bolt.
The forward brake pad 132 engages the skating surface 28 when the rider slants the mounting plate 12 forward, such as when the rear wheels 34, 38 are raised above the skating surface. The rear brake pad 144 engages the skating surface 28 when the rider slants the mounting plate 12 backward, such as when the forward wheels 24, 30 are raised above the skating surface. It will be appreciated that since the forward and rear brake pads 132, 144 move with the forward and rear wheel mounts 22, 32, respectively, the forward and rear brake pads do not necessarily engage the skating surface when the mounting plate 12 is tilted laterally.
In
As shown in
As described in detail below, the first side brake mount 52 is coupled to the mounting plate 12 such that the attached first side brake pad 54 engages the skating surface when the mounting plate 12 is tilted in a first lateral direction 148. The second side brake mount 56 is coupled to the mounting plate 12 such that the attached second side brake pad 58 engages the skating surface when the mounting plate 12 is tilted in a second lateral direction 149 opposite the first direction.
Referring to
With particular reference to
In other embodiments, a bearing or other friction-reducing device is disposed around the rod 70 to facilitate rotation of the forward and rear support members 60, 62 and the spacer 64. In use, increased pressure applied by the rider on any one side of the mounting plate 12 causes the forward and rear support members 60, 62 and the spacer 64 to tilt along with the mounting plate while the forward and rear wheel mounts 22, 32 and the wheels maintain their upright orientation relative to the skating surface 28.
Preferably, the forward and rear support members 60, 62, and not the forward and rear spring members 40, 46, bear all or most of the weight of the rider. That is, the forward and rear support members communicate the weight of the rider from the mounting plate 12 to wheel mounts 22, 32 and to the wheels. Because the support members 60, 62 bear all or most of the weight of the rider, little or no downward force is applied to the spring members 40, 46 when they are flexed. In this way, the spring members 40, 46 will not buckle due to downward compression during use.
The rod 70 defines the tilt axis 114 (
A relatively low location for the rod 70 and thus, the tilt axis 114, also allows for the side brake pads 54, 58 to be positioned closer to the wheels so as to be unobtrusive. The side brake pads 54, 58 would be obtrusive and possibly interfere with skating if they extend too far beyond either side of the wheels. A relatively high location for the tilt axis 114 requires that a side brake pad be positioned further to one side of the wheels in order for the side brake pad to engage the skating surface 28 when the mounting plate 12 is tilted at a given angle. It will be appreciated that a low location for the tilt axis 114 allows a side brake pad, at a given distance from the wheels, to engage the skating surface with less rotation of the mounting plate 12 as compared to a relatively high location for the tilt axis.
Referring to
Still referring to
It will be appreciated that first and second side brake mounts 52, 56 can be easily and quickly secured in a plurality of orientations corresponding to different height levels from the skating surface. With a relatively low height level, the side brake pads 54, 48 on the brake mounts will engage the skating surface 28 after traveling through a relatively small angle when a rider applies foot pressure to one or the other side of the mounting plate 12. With a relatively high height level, the brake pads on the brake mounts will engage the skating surface after traveling through a relatively large angle when the rider applies foot pressure to one or the other side of the mounting plate 12. It will be appreciated that the height level of the first and second brake mounts may be adjusted independently of one another to suit the type of skating surface or to suit the skill level or skating style of the rider. In addition, the height level may be adjusted to compensate for a brake pad wearing out through use.
With continued reference to
In other embodiments, spring-type devices, resilient pads, or shock absorbing devices attach any number of the side, forward, and rear brake pads 54, 58, 132, 144 to the side brake mounts 52, 56, 126, 138 so that, when the either brake pad contacts the skating surface 28, a downward force applied by the brake pad on the skating surface increases gradually as the mounting plate 12 is tilted further by the rider. In this way, friction with the skating surface increases gradually. In part, the shock absorbing devices allow for gradual or smooth braking and desirably prevent an overly sudden stop from occurring when the brake pad first contacts the skating surface 28. In other embodiments, the side, forward, and rear brake pads 54, 58, 132, 144 are adapted to rotate, either freely spinning or with some resistance to spinning, so as not to jar the skater while in a turning or stopping motion.
Referring once again to
The bolt 108 engages a shoulder of a counterbore formed in the rear wheel mount 32 and engages a threaded bore in the rear portion 78 of the rod 70. The bolt 108 is coupled to the forward wheel mount 22 by means of the rod 70 and forward pin 84. The head of the bolt 108 is accessible from the counterbore on the rear wheel mount 32. The bolt 108 may be selectively tightened or loosened to adjust the compression force between the forward and rear wheel mounts 22, 32. When tightened, the head of the bolt 108 pushes the rear wheel mount 32 toward the forward rear mount 22, thereby increasing the compression force. The compression force acts on the forward and rear support members 60, 62 and the spacer 64 on which the first and second side brake mounts 52, 56 are mounted. In part, the rod 70 and bolt 108 act as a tilt sensitivity adjustment device for changing the sensitivity of the braking system 10 to actions of the rider. By rotating the bolt 108 and causing it to move axially relative to the rod 70, the rider may control the resistance of the mounting plate 12 against lateral tilting. With a relatively high compression force, the braking system is less sensitive in that a rider must apply a relatively high pressure on the mounting plate 12 in order to tilt either of the first and second side brake mounts 52, 56 toward the skating surface 28. With a relatively low compression force, the braking system is more sensitive in that the rider need apply a relatively low pressure on the mounting plate 12 in order to tilt either of the first and second side brake mounts toward the skating surface.
Referring next to
While several particular forms of the invention have been illustrated and described, it will also be apparent that various modifications can be made. A non-limiting example of a modification includes the use of other types of wheel mounts, such as trucks used on skates and skateboards. Another non-limiting example of modifications includes the use of other types of biasing devices for urging the mounting plate to the normal orientation, such as torsion springs and resilient pads formed of elastomeric material. It is also contemplated that various combinations or subcombinations of the specific features and aspects of the disclosed embodiments can be combined with or substituted for one another in order to form varying modes of the invention. Accordingly, it is not intended that the scope of the invention be limited, except as by the appended claims.
Claims
1. A skate braking system comprising:
- a first wheel mount adapted to rotatably hold a first wheel about a first rotational axis extending laterally;
- a mounting plate pivotally attached to the first wheel mount so as to permit the mounting plate to tilt laterally; and
- a first side brake mount adapted to hold a first side brake pad for engaging a skating surface contacting the first wheel, the first side brake mount coupled to the mounting plate such that the side brake pad engages the skating surface when the mounting plate is tilted in a first lateral direction.
2. The system of claim 1 wherein the first side brake mount includes an adjustment device configured to selectively secure the first side brake mount to the mounting plate in a plurality of orientations including a first orientation in which the first side brake pad engages the skating surface when the mounting plate is tilted through a first angle, and a second orientation in which the first side brake pad engages the skating surface when the mounting plate is tilted through a second angle less than the first angle.
3. The system of claim 1 further comprising a second side brake mount adapted to hold a second side brake pad for engaging the skating surface, the second side brake mount coupled to the mounting plate such that the second side brake pad engages the skating surface when the mounting plate is tilted in a second lateral direction opposite the first lateral direction.
4. The system of claim 1 wherein the mounting plate is pivotally coupled to the first wheel mount at a tilt axis located closer to the skating surface than the first rotational axis.
5. The system of claim 1 wherein the first wheel mount is configured to rotatably hold a first plurality of wheels including the first wheel.
6. The system of claim 1 further comprising a second wheel mount adapted to rotatably hold a second wheel about a second rotational axis, the second wheel mount pivotally attached to the mounting plate so as to permit the mounting plate to tilt laterally.
7. The system of claim 6 wherein the second wheel mount is configured to rotatable hold a second plurality of wheels including the second wheel.
8. The system of claim 6 further comprising a forward brake mount and a rear break mount, the forward brake mount pivotally attached to the first wheel mount and adapted to hold a forward brake pad, the rear break mount pivotally attached to the second wheel mount and adapted to hold a rear brake pad.
9. The system of claim 6 further comprising:
- a support member fixedly attached to the mounting plate, the support member disposed between the first and second wheel mounts and pivotally attached to both the first and second wheel mounts about a bore formed through the support member;
- a rod including a forward portion attached to the first wheel mount and a rear portion attached to the second wheel mount, the rod extending through the bore formed through the support member.
10. The system of claim 9 further comprising a tilt sensitivity adjustment device configured to control resistance of the mounting plate to tilting laterally.
11. The system of claim 10 wherein the tilt sensitivity adjustment device includes a threaded member in thread engagement with the rear portion of the rod, the threaded member configured to be rotated so as to move axially in relation to the rod, the threaded member further configured to push the second wheel mount toward the first wheel mount, thereby altering compression applied by the first and second wheel mounts to the support member.
12. The system of claim 1 wherein the mounting plate has a normal orientation in which the first side brake pad does not engage the skating surface;
- the system further comprising a biasing device configured to urge the mounting plate to the normal orientation when the mounting plate is tilted laterally away from the normal orientation.
13. The system of claim 12 wherein the biasing device comprises a spring member having a first end constrained within a slot formed in the mounting plate and a second end fixedly attached to the first wheel mount, the first end configured to move within the slot.
14. The system of claim 12 wherein the biasing device comprises at least one flat plate formed of a resilient material configured to flex so as to allow the mounting plate to tilt laterally.
15. A skate braking system comprising:
- a first wheel mount adapted to rotatably hold a first wheel about a rotational axis;
- a mounting plate pivotally attached to the first wheel mount so as to allow the mounting plate to tilt about a tilt axis oriented at an angle from the rotational axis, the mounting plate having normal orientation in relation to the first wheel mount; and
- a side brake mount adapted to hold a side brake pad for engaging a skating surface contacting the first wheel, the side brake mount coupled to the mounting plate such that the side brake pad does not engage the skating surface when the mounting plate is in the normal orientation and engages the skating surface when the mounting plate is tilted away from the normal orientation.
16. The system of claim 15 wherein the tilt axis is located at a first distance from the slating surface, and the second rotational axis is located at a second distance from the skating surface, the second distance greater than or equal to the first distance.
17. The system of claim 15 wherein the mounting plate has a longitudinal axis substantially perpendicular to the rotational axis of the first wheel, the longitudinal axis being parallel to the skating surface when the mounting plate is tilted away from the normal orientation.
18. The system of claim 15 further comprising a foot platform and the mounting plate forms part of the foot platform.
19. The system of claim 15 further comprising:
- a second wheel mount adapted to rotatably hold a second wheel about a second rotational axis, the second wheel mount pivotally attached to the mounting plate so as to permit the mounting plate to tilt about the tilt axis;
- a support member fixedly attached to the mounting plate, the support member disposed between the first and second wheel mounts and pivotally attached to both the first and second wheel mounts about a bore formed through the support member; and
- a rod including a forward portion attached to the first wheel mount and a rear portion attached to the second wheel mount, the rod extending through the bore formed through the support member.
20. The system of claim 15 further comprising a spring member having a first end loosely attached to the mounting plate and a second end fixedly attached to the first wheel mount, the spring member configured to urge the mounting plate to the normal orientation when the mounting plate is tilted away from the normal orientation.
Type: Application
Filed: Oct 30, 2006
Publication Date: Aug 14, 2008
Inventor: James M. Bourne (Culver City, CA)
Application Number: 11/914,403