Patent Application
20200172078
The present invention relates to systems for engaging at least one of a brake pedal and a steering wheel of a vehicle. Specifically, the present invention relates to a device for remotely engaging (e.g., actuating) a brake system and/or arresting movement of a steering wheel of a vehicle for the purpose of affecting repairs to the vehicle, without the need for two people to participate in the operation.
Most vehicles on the road today have a hydraulic braking system including brake pads, calipers, and a closed system of pressurized inelastic brake fluid which must be free of air bubbles in order to function properly. The brake pads have to be replaced from time to time when they become worn down, which requires the calipers to be removed and their cylinders to be compressed in order to make room for the new, thicker brake pads. The calipers themselves also sometimes need to be replaced, which requires the brake fluid lines to be transferred from the old caliper to the new caliper. Both of these processes often introduce air bubbles into the brake fluid lines, which then must be bled in order to remove the bubbles and maintain optimal braking function. Bleeding the brake fluid lines requires the brake pedal in the cabin of the vehicle to be depressed, while the brake line valve at the wheel is monitored and capped after removal of air bubbles.
This practice has traditionally required one person to be in the cabin of the vehicle to depress the brake pedal and another person at a wheel to monitor and cap the brake line valve. Thus, a car owner maintaining his or her own vehicle typically cannot change their brake pads or calipers without asking for help. Likewise, a vehicle repair or maintenance shop typically must devote the labor of two employees to this process, doubling the expense for this part of a brake job.
Further, engaging the brake system and/or arresting the rotation of a steering wheel of a vehicle may be useful during various other vehicle repair or maintenance processes which require the wheels to be locked against rotation. For example, changing or rotating tires, or replacing the wheels of the vehicle require that the vehicle be lifted off the ground so that the wheels can be removed. However, removing a wheel also requires the application of substantial rotational force to loosen or tighten the lug nuts holding the wheel to the vehicle's axle, which will naturally cause the wheel to rotate if not otherwise held in place. Conventionally, the lug nuts have to be partially loosened while the wheel is still on the ground, but for safety purposes the lugs are not removed entirely until the vehicle has been lifted, preventing the wheel from falling off before the vehicle is properly supported. This two-step process is then reversed in order to put the wheel back on the vehicle.
Not only is this process inefficient, but it is also a common source of frustration, as vehicle owners or mechanics may forget to loosen the lug nuts before lifting the vehicle. They are then left with the options of either lowering vehicle again and adding further steps to an already inefficient process, or having a second person—if one is available—get in the vehicle to apply the brakes while the lug nuts are loosened. This second option is even less attractive than the first. It may be dangerous to climb into the vehicle if it is up on jacks in the owner's driveway, and difficult to accomplish without a ladder if the vehicle is on a lift at a repair shop. A system which is able to apply the brakes of the vehicle after it has been raised, without the need for a second person to get in the vehicle, would thus be a far more desirable solution.
In truth, being able to remotely apply the brakes of the vehicle and arrest the steering wheel can significantly increase safety any time that the vehicle is raised on jacks. This is especially true when only one side of the vehicle is raised. Any movement of a vehicle up on jacks may cause the jacks to tip over and the vehicle to suddenly drop to the ground, which could cause severe injury to a person lying underneath or standing next to the vehicle. Conventional methods of preventing movement of the vehicle in such situations include using the emergency brake, and putting chocks (i.e., triangular blocks) in the path of wheels that are still on the ground. However, an emergency brake system is often less effective than a primary brake systems. An emergency brake system often does not affect all wheels of the vehicle (e.g., only on the rear wheels of the vehicle), the emergency braking mechanism may be based on a cable and pulley system rather than a more powerful hydraulic system, and the emergency brake system may be more prone to fail than the primary brake system on older vehicles due to lack of maintenance. Also, although chocks are always a good idea when a car is up on jacks, they are not infallible. Chocks may slip on the ground or they may not be tall enough for the wheel, allowing them be overcome by the momentum of a massive vehicle rolling or falling off of jack stands.
Further, various other repair processes may call for arresting the steering wheel of the vehicle, with or without the need to also engage the brakes. For instance, performing an alignment repair involves taking precise measurements of the positions of the wheels of the vehicle. Typically, such measurements are taken while the wheels are lifted off of the ground in order to remove any play in the steering mechanism, and to make it is easier to adjust the caster, camber, or toe angle of the wheel(s). The process may also include engaging a measurement device with the wheel, which must remain motionless in order for the measurements to be accurate and useful. In such situations, turning of the wheel(s) (e.g., by accidentally bumping the wheel or by accidentally turning the steering wheel) will cause inaccuracies in the alignment process and may require that the process be started over. The same may be true of accidentally rotating the wheel(s) being aligned.
The present invention may be operable to arrest movement of the steering wheel and/or engage the primary brake system of a vehicle. Being able to arrest movement of the steering mechanism may resist accidental turning of the wheel(s) being aligned, and remotely engaging the brakes of the vehicle may prevent accidental rotation of the wheel being aligned (as well as movement of vehicle as a whole via the wheels still on the ground). Therefore, the present invention may be operable to improve both the accuracy and the safety of vehicle alignment work.
Therefore, what is needed is a device which allows a single person performing a maintenance or repair operation to both control the position of the brake pedal and arrest movement of the steering wheel in the cabin of the vehicle, and monitor or manipulate vehicle parts or tools outside the cabin of the vehicle.
The present invention provides a device and related methods for remotely engaging a brake pedal of a vehicle, and/or engaging the steering wheel of the vehicle to arrest movement thereof, in order to perform a repair or maintenance process on the vehicle. The repair or maintenance process may be any process for which engaging the brake system or preventing movement of the steering wheel may be advantageous. Without limitation, such a repair or maintenance process may include at least one of: air brake diagnoses to check for air leaks and function, changing or repairing a component of the brake system (e.g., pads, rotors, cylinders, etc.), changing, repairing, or rotating a tire or wheel, changing or repairing a component of the suspension system of the vehicle, repairing or adjusting the alignment of a wheel of the vehicle, repairing or adjusting a component of the steering mechanisms of the vehicle, replacing hydraulic or manual clutches, or any process which involves loosening or tightening a lug nut or removing a wheel, or any process which requires putting the vehicle up on jacks, blocks, or a lift. In some embodiments, without limitation, the repair or maintenance process may include using the presently disclosed device to depress the accelerator in connection with at least one of: checking throttle linkages, replacing an exhaust gas recirculation plate, or other process requiring the engagement of the accelerator.
The brake and steering engagement device of the present invention may apply pressure adequate to depress the brake pedal, thus pressurizing the brake fluid within the system, and/or may engage the steering wheel such that it prevented from rotating (e.g., by providing an inelastic mechanical connection between the brake pedal and at least one point on the steering wheel). The pressure applied by the present invention may be pre-determined to a pressure that is sufficient to both apply the braking system of the vehicle and/or arrest the movement of the steering wheel. For example, the pressure applied by the device may be in a range of about 75 lbs to about 120 lbs. (e.g., about 80 lbs. to about 110 lbs., about 85 lbs. to about 100 lbs., or about 90 lbs. to about 95 lbs.). The pressure applied by the device may be continuous within the pre-determined pressure range such that no changes in brake application or steering arrest occurs if, e.g., brake fluid is removed from the brake lines.
The brake and steering engagement device may also be remotely controlled, allowing the device to be operated by a single person positioned outside the vehicle (e.g., at a wheel or brake line valve of the vehicle). The brake and steering engagement device offers significant advancements in allowing a single person to control the depression and release of the brake pedal, and/or the arrest of rotation of the steering wheel, in the cabin of the vehicle, while performing a maintenance or repair process outside the cabin of the vehicle (e.g., loosening lug nuts, monitoring the brake line valve at the wheel of the vehicle for air bubbles, or measuring the position of a wheel for adjusting alignment). The pressure may be continuously applied in the pre-determined range by a single command sent by the remote controlling mechanism (e.g., by one button click), allowing the individual to arrest the wheels and steering with one command and then move on to their particular repair task without having to input further instructions or commands to the presently disclosed device.
The brake and steering engagement device may include an adjustable support, a wheel mount, a pedal mount, an automated actuation system, a remote control system, and a power system. A method of using the brake and steering engagement device may include the steps of: attaching the wheel mount to the steering wheel of the vehicle, adjusting the length of the adjustable support, attaching the pedal mount to the brake pedal of the vehicle, connecting the pneumatic system to a compressed air source, connecting the power system to a power source, causing the brake pedal to be depressed via the remote control system, and releasing the pressure on the brake pedal via the remote control system. In some embodiments, the device may include a first wheel mount and a second wheel mount, each having an extendable support, and the method may include the steps of adjusting a length an extendable support, attaching the first wheel mount to a first lateral side of the steering wheel, and attaching the second wheel mount to a second lateral side of the steering wheel.
The adjustable support may include a first end and a second end, the first end being positioned near the steering wheel and the second end being positioned nearer the brake pedal when the brake and steering engagement device is installed in a vehicle. The adjustable support may also have a first arm and a second arm, the second arm being slidably fitted within the first arm at the first end such that the length of the adjustable support may be quickly adapted to fit the distance between the steering wheel and the brake pedal, and the second arm being secured in place in relation to the first arm by setting a position locking device such as a pin, spring-loaded button, or a clamp. The first arm may also support the pneumatic system at the second end. In some embodiments, the first arm may have a position locking hole, and the second arm may have multiple adjustment holes along its length. The length of the adjustable support may thereby be altered by sliding the second arm in or out of the first arm until an appropriate adjustment hole lines up with the position locking hole, and fitting the position locking device through both the position locking hole and the appropriate adjustment hole.
In other embodiments the adjustment holes may be located on the first arm, the position locking hole located on the second arm, and the position locking device may comprise a spring-loaded button within the position locking hole. The spring-loaded button may be operable to be pushed into the second arm in order to adjust the position of the second arm relative to the first arm, and slide out into an adjustment hole when the adjustment hole lines up with the position locking hole.
In some embodiments, the first arm may have an inner surface with at least one sliding channel and the second arm may have an outer surface with at least one sliding tab positioned lengthwise along the second arm, wherein the sliding tab fits into the sliding channel and prevents the second arm from twisting in relation to the first arm, thus assuring that the adjustment holes line up circumferentially with the position locking hole as the second arm slides into or out of the first arm.
In some embodiments, and without limitation, the first arm may include a joint (e.g., a pivoting or hinge joint) to accommodate vehicles that have bulky panels or structures below the steering column. The pivoting joint may allow the brake fluid bleeding device to be routed around the bulky panels of some vehicles without any impact on the effectiveness of the device. Pivoting joint may be located at various locations along the first arm, for example, at or near the wheel mount of the device near a distal end of the first arm.
The wheel mount may be attached at the first end of the adjustable support. The wheel mount may include a wheel cradle and latching device for securing the wheel mount to the steering wheel. The latching device may be a flexible structure (e.g., comprising silicone, vulcanized rubber, thermoplastic elastomers, and other appropriate materials) that is attached to the wheel cradle at one end and wraps over the steering wheel and another end connects with a receiver on the wheel cradle. In some examples the latching device may have multiple cinching notches, each of which is engageable with the receiver, such that the latching mechanism may be tightened around steering wheels of various cross-sectional circumferences. In some embodiments, the wheel mount may be a ratchet style cinch device with a wheel cradle and a pivoting latch having multiple ratchet engagements, which is operable to loop around the steering wheel. In other embodiments, the wheel mount may include a wheel cradle and a rigid hook with a swinging arm, the wheel mount being operable to be quickly installed on the steering wheel by pushing the wheel mount—at the position of the swinging arm—against the steering wheel until the steering wheel is positioned inside the rigid hook and the swinging arm swings back into a closed position in contact with the rigid hook. In some embodiments, the swinging arm may be spring biased to close on the ratchet portion. In other embodiments, the swinging arm may swing outward, away from the first end of the adjustable support, while the rigid hook is installed on the steering wheel. The swinging arm may then be swung back into a closed position and held in place by a ridge on a lower extension of the rigid hook. The ratcheting clamp may be cinched down such that there is a tight fit on the steering wheel. The clamp may include a release mechanism, such as a release button. In other embodiments, the swinging arm may be an elastic extension of the rigid hook.
The interior surfaces of the clamp that interface with the steering wheel (e.g., the wheel cradle and the latching device) may be covered with a high friction surface, such as a knurled metal or plastic surface, or a tacky rubber surface to increase the coefficient of friction between the steering wheel and the clamp. For example, the high friction material may provide a static coefficient of friction in the range of 0.5 to 1.0.
In some embodiments, and without limitation, the wheel mount may include a laterally extending curved surface for creating more interfacing surface area with the steering wheel for a more stable interface. For example, the wheel mount may have flared lateral portions that have a curvature that is complementary to the circular curvature of the steering wheel. In some embodiments, the flared lateral portions may comprise a rigid base having a shape complementary to a shape of an outer perimeter of the steering wheel, and flexible upwardly curving sides for wrapping around the steering wheel, the curing sides having a shape complementary to a cross-sectional shape of the steering wheel (e.g., a gently curving, substantially cylindrical shape).
The upwardly curving sides may therefore be operable to fit snugly over the steering wheel, increasing the area of contact between the wheel mount and the steering wheel, and the base may be operable to maintain the rotational position of the steering wheel despite a rotational force being applied thereto (e.g., the base may be operable to maintain an angle at which it is attached to the first end of the adjustable support of the device when a person bumps or attempts to turn the steering wheel, or when a wheel of the vehicle is bumped while lifted off the ground). The device of the present invention may thus be operable to arrest movement of the steering wheel of the vehicle, and as a result prevent movement in the entire steering mechanism of the vehicle (e.g., the steering column and rack, and the steerable wheels of the vehicle). Arresting rotational movement of the vehicle's steering mechanism in this manner may be aided by actuating the automated actuation system of the device to extend the support arm. Such extension may remove any play between the brake pedal and pedal mount, and between the steering wheel and the wheel mount, and may increase the tension which the device creates between the brake pedal and the steering wheel of the vehicle.
In some embodiments, the wheel mount may comprise a plurality of wheel mounts. For example, and without limitation, the wheel mount may comprise a first wheel mount attached to the first end of the adjustable support and attachable to a first lateral side (e.g., the left side) of the steering wheel, and a second wheel mount attached to the first end of the adjustable support and attachable to a second lateral side (e.g., the right side) of the steering wheel. The first wheel mount and second wheel mount may each comprise an attachment mechanism operable to attach to the steering wheel in a secure and static manner (i.e., wherein the first and second wheel mounts remain in the same position on the steering wheel despite rotational force being applied thereto). In some embodiments, the first and second wheel mounts may each comprise at least one of a clamp, a clip, a strap, a buckle, a snap, a ratchet style cinch device which is operable to loop around the steering wheel, a rigid hook with a swinging arm, and a laterally extending curved surface for creating more interfacing surface area with the steering wheel. In some embodiments, the brake and steering engagement device may form a Y-shape when installed and viewed from the driver's seat, wherein the adjustable support and pedal mount form the leg of the Y (attaching to the brake pedal), and the first and second wheel mounts form the arms of the Y (attaching the left and right lateral sides of the steering wheel, respectively).
In some embodiments, the first and second wheel mounts may each comprise a laterally extending curved surface for receiving the steering wheel and a notched securing device that connects and interlocks with complementary notches on the backside of the laterally extending curved surface. The laterally extending curved surface of the first and second wheel mounts may each comprise a material on a portion of the wheel mount that interfaces with the steering wheel, the material having a high coefficient of friction in contact with the steering wheel. Such friction, in combination with the rigid connection and tension between the brake pedal and steering wheel provided by installing and actuating the device, may effectively arrest rotational movement of the steering wheel.
In yet other embodiments, the first and second wheel mounts may each comprise a strap having a securing device, the securing device comprising at least one of a hook and loop arrangement (i.e., Velcro), a snap, a buckle, a clip, and the like. The first wheel mount may comprise a first strap operable to securely engage with (e.g., wrap around) the steering wheel at or adjacent to a first spoke of the steering wheel, and the second wheel mount may comprise a second strap operable to securely engage with the steering wheel at or adjacent to a second spoke of the steering wheel. In some embodiments, the first strap may engage with the first spoke directly, and the second strap may engage with the second spoke directly.
In other embodiments, the first and second wheel mounts may each comprise a forked shape having a first support member for extending around a first side (e.g., an inner side) of the steering wheel and a second support member for extending around a second side (e.g., an outer side) of the steering wheel. In some embodiments, the first support member may comprise a securing device (e.g., a strap with a knot or an enlarged end) for wrapping around the steering wheel and attaching to the second support member (e.g., at a notch therein having a diameter complementary to a diameter of the strap but too narrow to allow the knot to pass), such that the forked shape is secured against the steering wheel. When installed, the first support member of the first wheel mount may be operable to but up against (i.e., underneath) a first spoke of the steering wheel, the first spoke connecting the hub of the steering wheel with the outer circular portion of the steering wheel. The first support member of the first wheel mount may thus prevent rotation of the steering wheel in a first rotational direction by lying in the rotational path of the first spoke. The first support member of the second wheel mount may similarly but up against and lie in the rotational path of a second spoke of the steering wheel, preventing rotation of the steering wheel in second rotational direction (i.e., opposite of the first rotational direction). Each of the first support members may thus be operable to obstruct a rotational path of a spoke of the steering wheel.
In some embodiments, the first and second wheel mounts may each further comprise an extendable support, the extendable support being adjustable in length in order to accommodate steering wheels of various sizes and shapes (e.g., non-round steering wheels, or steering wheels having wide spokes or support members which prevent attachment of a wheel mount in a certain area of the steering wheel). By extending the length of the extendable support(s), a distance may be increased between the first and second wheel mounts. The greater distance may allow the first and second wheel mounts to be attached to a steering wheel having a greater diameter, or to move the first and second wheel mounts to a wider lateral positions on the same steering wheel. This positioning may provide increased leverage for the brake and steering engagement device to prevent rotation of the steering wheel.
In some embodiments, the extendable supports may comprise elements similar to the elements of the adjustable support. For example, and without limitation, the extendable supports may each include a first end and a second end, the first end being positioned near the steering wheel and the second end being positioned nearer the adjustable support. The extendable supports may each also have a first arm and a second arm, the second arm being slidably fitted within the first arm at the first end such that the length of the adjustable support may be quickly adapted to fit the size and shape of the steering wheel or the distance between the steering wheel and the brake pedal, and the second arm being secured in place in relation to the first arm by setting a position locking device such as a pin, spring-loaded button, or a clamp. In some embodiments, the first arm may have a position locking hole, and the second arm may have multiple adjustment holes along its length. The length of the extendable supports may thereby be altered by sliding the second arms in or out of the first arms until an appropriate adjustment hole lines up with the position locking hole, and fitting the position locking device through both the position locking hole and the appropriate adjustment hole.
In other embodiments the adjustment holes may be located on the first arms, the position locking hole located on the second arms, and the position locking device may comprise a spring-loaded button within the position locking hole. The spring-loaded button may be operable to be pushed into the second arm in order to adjust the position of the second arm relative to the first arm, and slide out into an adjustment hole when the adjustment hole lines up with the position locking hole.
In some embodiments, each of the first arms may have an inner surface with at least one sliding channel and each of the second arms may have an outer surface with at least one sliding tab positioned lengthwise thereon, wherein the sliding tab fits into the sliding channel and prevents the second arm from twisting in relation to the first arm, thus assuring that the adjustment holes line up circumferentially with the position locking hole as the second arm slides into or out of the first arm.
The first and second wheel mounts may securely and statically attach to the left and right lateral sides of the steering wheel, respectively, and the pedal mount may securely and statically attach to the brake pedal. The device may thereby provide a rigid and extendable connection between the brake pedal and the left lateral side of the steering wheel, and a rigid and extendable connection between the brake pedal and the right lateral side of the steering wheel. Such arrangement may improve the device's ability to arrest rotational movement of the steering wheel. The device may allow a user to arrest movement of the steering wheel, and thereby prevent movement of the wheels and other components of the steering mechanism of the vehicle, during a maintenance or repair process which may benefit thereby, such as adjusting the alignment of a wheel of the vehicle).
The pedal mount may be attached to a distal end of the automated actuation system and secure the automated actuation system in position to depress the brake pedal of the vehicle. In some embodiments, the pedal mount may include a plate, a leg tip, and a hook and loop fastener, the plate being attached to the distal end of the automated actuation system, and supporting the leg tip and the hook and loop fastener. The hook and loop fastener may be a strap of sufficient length to wrap around the brake pedal, slide through a slot of the plate, and fold back against itself to be tightened and secured around the brake pedal. The pedal mount may comprise a commercially available hook and loop fastener such as a Velcro® strap. The leg tip may be attached to a bottom side of the plate and be operable to be secured against the brake pedal when the hook and loop fastener is in a secured position. In other embodiments, the pedal mount may include an adjustable bracket that can be adjusted to brake pedals of various sizes. For example, the vertical dimension of the face of the pedal may vary in its length and the pedal mount bracket may have two piece bracket that can be expanded or contracted by virtue of a sliding joint between the two pieces of the bracket. In some embodiments, the bracket may grip the back side of the pedal and the sliding joint may be lockable, such that no strap is needed to wrap around the pedal to secure it in place. In other example, the bracket may include a strap of sufficient length to wrap around the brake pedal, slide through a slot of the plate, and fold back against itself to be tightened and secured around the brake pedal, or a Velcro® strap.
The automated actuation system may be operable to extend the length of the brake and steering engagement device may be a pneumatic actuator, a hydraulic cylinder, a traveling nut linear actuator, a traveling screw actuator, or a linear motor (e.g., a linear induction motor). In the case of a pneumatic actuator, the actuator may include a pneumatic cylinder, a pneumatic shaft, and a pneumatic control, the pneumatic control including an air input port and an air exhaust port. The air input port may be operable to connect to and receive air pressure from a compressed air source. In some embodiments, the air input port may comprise a standard male pneumatic connector. The pneumatic control may be in electronic communication with, and able to receive a command from, the remote control system. The pneumatic control may include an air valve, the air valve being operable to open or close the air input port and open or close the air exhaust port in accord with the command received from the remote control system. The air valve may comprise a commercially available three-way solenoid valve.
The pneumatic control may be in fluid communication with the pneumatic cylinder and be operable to direct air pressure into, or release air pressure from, the pneumatic cylinder. The pneumatic cylinder may house the pneumatic shaft in an air-tight and telescopic manner, such that the pneumatic shaft is operable to extend out of the pneumatic cylinder as air pressure is directed into the pneumatic cylinder via the pneumatic control, causing the pedal mount to apply pressure to the brake pedal of the vehicle. The pneumatic shaft may also be operable to retract back into the pneumatic cylinder as air pressure is released from the pneumatic cylinder via the pneumatic control, releasing pressure from the brake pedal.
The pneumatic system may further include an adjustable valve, the adjustable valve being operable to limit the flow of air moving between the pneumatic control and the pneumatic cylinder, thereby slowing the extension or retraction of the pneumatic shaft. The adjustable valve may be operable to be adjusted to increase or decrease the maximum flow of air moving between the pneumatic control and the pneumatic cylinder. The adjustable valve may include an adjusting screw, the maximum flow of air moving between the pneumatic control and the pneumatic cylinder being adjusted by turning the adjusting screw. In some embodiments, the adjustable valve may comprise a pneumatic governor.
The remote control system may include at least one remote controller with at least one remote control button, and a remote receiver capable of receiving a signal from the remote controller. The remote receiver may be located at the actuation system and be in electronic communication with an actuation controller, allowing a user to remotely operate the actuation system. The remote controller may be in wired or wireless electronic communication with the remote receiver. In some embodiments, the remote controller may comprise a remote fob including the at least one remote control button, and be in wireless electronic communication with the remote receiver via at least one remote control channel. A single remote control button may be used to operate the actuation system. In some examples, the pressing the remote control button may signal the pneumatic control, which may supply a voltage to a solenoid that opens a valve to allow compressor air into the pneumatic cylinder. After pressing the remote control button a single time, a constant voltage may be applied to the solenoid and pressure is constantly applied to the pedal. In such embodiments, pressing the remote control button a second time cuts the voltage applied by the pneumatic controller to the solenoid, and allow the air to leak out of the air cylinder. In other embodiments, the pressure applied by the brake and steering engagement system may be variably controlled depending on how long the remote control button is depressed. A user may cause the pneumatic controller to open the air input port by holding the remote control button down for longer than an predetermined period of time (e.g., 0.5 seconds), and to open the air exhaust port by depressing the remote control button for less than the predetermined period of time.
The power system may be operable to provide power to each of the remote receiver and the pneumatic control. In some embodiments, the power system may be at least one battery, the at least one battery comprising at least one of a commercially available battery (e.g., an A, AA, or AAA battery, a C battery, a D battery, a 9-volt battery, or another similar commercially available battery for electronic devices). In other embodiments the power system may have an outlet plug. The outlet plug may be operable to plug into a wall outlet, or it may be operable to plug into the electrical system of the vehicle, comprising at least one of a cigarette lighter plug and a USB plug.
Several embodiments are discussed below, but the example embodiments shall not be interpreted as an exhaustive list. One with ordinary skill in the art will recognize that the scope of the present invention includes further variations and equivalents to the specific examples described herein.
In one aspect, the present invention relates to a device for bleeding a brake system of a vehicle, comprising: an adjustable support for changing the length of the device; a wheel mount for attaching the device to a steering wheel of the vehicle; a pedal mount for attaching the device to a brake pedal of the vehicle; a pneumatic system for applying pressure to the brake pedal; a remote control system for remotely operating the pneumatic system; and a power system. In some implementations, the adjustable support comprises a first arm and a second arm, the second arm being slidably fitted within the first arm. In some implementations, the first arm and second arm are secured together via a position locking device. In some implementations, the first arm comprises a locking hole, the second arm comprises a plurality of adjustment holes, and the position locking device comprises a pin. In some implementations, the first arm comprises an inner surface with at least one sliding channel and the second arm comprises an outer surface with at least one sliding tab positioned lengthwise along the second arm, wherein the sliding tab fits into the sliding channel and prevents the second arm from twisting in relation to the first arm. In some implementations, the wheel mount comprises a ratchet style cinch device. In some implementations, the wheel mount comprises a rigid hook with a swinging arm. In some implementations, the pedal mount comprises a hook and loop fastener. In some implementations, the pneumatic system comprises a pneumatic cylinder, a pneumatic shaft, and a pneumatic control, the pneumatic cylinder housing the pneumatic shaft in an air-tight telescopic manner. In some implementations, the pneumatic control comprises an air input port, an air exhaust port, and an air valve. In some implementations, the pneumatic control is in electronic communication with, and able to receive a command from, the remote control system. In some implementations, the pneumatic control comprises an air valve, the air valve being operable to open or close the air input port and open or close the air exhaust port in accord with the command received from the remote control system. In some implementations, the pneumatic system further comprises an adjustable valve, the adjustable valve being operable to limit the flow of air moving between the pneumatic control and the pneumatic cylinder. In some implementations, the remote control system comprises a remote controller with at least one remote control button, and a remote receiver capable of receiving a signal from the remote controller. In some implementations, the remote controller is in wireless electronic communication with the remote receiver via a remote control channel, the remote controller comprising a fob. In some implementations, the remote control button is operable to cause the fob to send a plurality of signals to the remote receiver, each signal in the plurality of signals being determined by the length of time the remote control button is depressed by a user. In some implementations, the power system comprises an outlet plug, the outlet plug being operable to plug into an electrical system of the vehicle. In some implementations, the outlet plug comprises at least one of a cigarette lighter plug and a USB plug.
In another aspect, the present invention relates to a method for using a device comprising an adjustable support for changing the length of the device, a wheel mount for attaching the device to a steering wheel of the vehicle, a pedal mount for attaching the device to a brake pedal of the vehicle, a pneumatic system for applying pressure to the brake pedal, a remote control system for remotely operating the pneumatic system, and a power system, the method comprising the steps of: attaching the wheel mount to the steering wheel of the vehicle; adjusting the length of the adjustable support by sliding the second arm in or out of the first arm and setting the position locking device; attaching the pedal mount to the brake pedal of the vehicle; plugging the power system into an electrical system of the vehicle; positioning a user at a brake line valve of the vehicle; and depressing the brake pedal of the vehicle via the remote control system. In some implementations the remote control system comprises a remote control button, the remote control button being operable to cause the pneumatic system to depress the brake pedal or release the brake pedal, depending on the length of time the remote control button is depressed, and further comprising the step of releasing the brake pedal via the remote control system.
In another aspect, a device for bleeding a brake system of a vehicle, comprising an adjustable support for changing the length of the device; a wheel mount for attaching the device to a steering wheel of the vehicle; a pedal mount for attaching the device to a brake pedal of the vehicle; an actuation system for extending the device to apply pressure to the brake pedal; and a remote control system for remotely operating the actuation system. The adjustable support may include a first arm and a second arm, the second arm being slidably fitted within the first arm. The first arm and second arm may be secured together via a position locking device wherein the body comprises a plurality of receivers for the position locking device and the position locking device is operable to engage the extension rod and any one of the plurality of receivers to hold the extension rod in a chosen position relative to the cavity. The wheel mount may include a ratcheting cuff operable to tightly lock onto portions of a steering wheel of various diameters and shapes. The first arm may include an inner surface with at least one sliding channel and the second arm comprises an outer surface with at least one sliding tab positioned lengthwise along the second arm, wherein the sliding tab fits into the sliding channel and prevents the second arm from twisting in relation to the first arm. The wheel mount may include a ratchet-style cinch device. The wheel mount may include a rigid hook with a swinging arm. The pedal mount may include a hook and loop fastener. The actuation system may include a pneumatic cylinder, a pneumatic shaft, and a pneumatic control, the pneumatic cylinder housing the pneumatic shaft in an air-tight and telescopic manner. The pneumatic control may include an air input port, an air exhaust port, and an air valve. The pneumatic control may be in electronic communication with, and able to receive a command from, the remote control system. The pneumatic control may include an air valve, the air valve being operable to open or close the air input port or to open or close the air exhaust port in accord with the command received from the remote control system. The pneumatic system may further includes an adjustable valve, the adjustable valve being operable to limit the flow rate of air moving between the pneumatic control and the pneumatic cylinder. The remote control system may include a remote controller with a remote control button, and a remote receiver capable of receiving a signal from the remote controller. The wheel mount may include a lateral curvature that complements the circular curvature of a steering wheel to create more interfacing surface area between the ratcheting cuff and the steering wheel. The pedal mount nay include an adjustable bracket structure that is operable to be fitted snugly over the face of the brake pedal for a secure engagement with brake pedals of various sizes. The second arm may include a pivoting joint therein to allow the device to avoid obstruction by a dash panel under a steering column of the vehicle or other structures within the vehicle. The wheel mount may include a material on a portion of the wheel mount that interfaces with the steering wheel, the material having a high coefficient of friction in contact with the steering wheel.
In another aspect, the present invention relates to a device for bleeding air from a hydraulic brake system of a vehicle, comprising an extendable body, the extendable body having an extension rod, a cavity therein for receiving the extension rod, wherein a position of the extension rod is adjustable within the cavity, and an arm extendable by a remotely activated actuator; a wheel mount for attaching the extendable body to a steering wheel of the vehicle; a pedal mount for attaching the extendable body to a brake pedal of the vehicle, wherein the arm is operable to be actuated to extend the extendable body to apply pressure to the brake pedal through the pedal mount. The remotely activated actuator may be a linear motor, a pneumatic air cylinder, a hydraulic cylinder, a traveling nut linear actuator, or a traveling screw actuator. The extension rod may include a pivoting joint therein to allow the device to avoid obstruction by a dash panel under a steering column of the vehicle or other structures within the vehicle. The wheel mount may include a ratcheting cuff operable to tightly lock onto portions of a steering wheel of various diameters and shapes. The wheel mount may include a material on a portion of the wheel mount that interfaces with the steering wheel, the material having a high coefficient of friction in contact with the steering wheel. The ratcheting cuff may include a lateral curvature that complements the circular curvature of a steering wheel to create more interfacing surface area between the ratcheting cuff and the steering wheel. The wheel mount may include a lateral curvature that complements the circular curvature of a steering wheel to create more interfacing surface area between the ratcheting cuff and the steering wheel. The wheel mount may include a material on a portion of the wheel mount that interfaces with the steering wheel, the material having a high coefficient of friction in contact with the steering wheel. The brake bleeding device may include an electronic remote control operable to activate the remotely activated actuator to extend or retract the arm by remote electromagnetic signal. The brake bleeding device a position locking device, wherein the extendable body comprises a plurality of receivers for the position locking device and the position locking device is operable to engage the extension rod and any one of the plurality of receivers to hold the extension rod in a chosen position relative to the cavity.
In another aspect, the present invention relates to a method draining brake fluid, comprising the steps of attaching a device having a wheel mount to the steering wheel of a vehicle; adjusting the length of the device by sliding a second arm into or out of a first arm and setting the position of the second arm relative to the first arm with a locking device; attaching a pedal mount of the device to a brake pedal of the vehicle; positioning a user at a brake line valve of the vehicle; and depressing the brake pedal of the vehicle by remotely activating an actuation system of the device. The remote control system may include a remote control button, the remote control button being operable to cause the pneumatic system to either depress the brake pedal or release the brake pedal, depending on the length of time the remote control button is depressed, and further comprising the step of releasing the brake pedal via the remote control system. The actuation system may be a linear motor, a pneumatic air cylinder, a hydraulic cylinder, a traveling nut linear actuator, or a traveling screw actuator. The second arm may include a pivoting joint therein to allow the device to avoid obstruction by a dash panel under a steering column of the vehicle or other structures within the vehicle. The wheel mount may include a ratcheting cuff operable to tightly lock onto portions of a steering wheel of various diameters and shapes. The wheel mount may include a material on a portion of the wheel mount that interfaces with the steering wheel, the material having a high coefficient of friction in contact with the steering wheel. The ratcheting cuff may include a lateral curvature that complements the circular curvature of a steering wheel to create more interfacing surface area between the ratcheting cuff and the steering wheel. The wheel mount may include a lateral curvature that complements the circular curvature of a steering wheel to create more interfacing surface area between the ratcheting cuff and the steering wheel. The wheel mount may include a material on a portion of the wheel mount that interfaces with the steering wheel, the material having a high coefficient of friction in contact with the steering wheel. The method may include using a brake bleeding device further comprising an electronic remote control operable to activate the remotely activated actuator to extend or retract the arm by remote electromagnetic signal. The method may include using a brake bleeding device further comprising a position locking device, wherein the extendable body comprises a plurality of receivers for the position locking device and the position locking device is operable to engage the extension rod and any one of the plurality of receivers to hold the extension rod in a chosen position relative to the cavity
It is an objective of the present invention to provide a device which allows a user who is bleeding the brake system of a vehicle to remotely operate a brake pedal of the vehicle while positioned at a wheel of the vehicle.
It is a further objective of the present invention to provide a device which allows a single person to perform a brake-bleeding operation on a vehicle.
It is a further objective of the present invention to provide a device which may be quickly adjusted to fit between the steering wheel and brake pedal of a plurality of different vehicles.
It is a further objective of the present invention to provide a device which may plug into the vehicle's electrical system, obviating the need to perform a brake bleeding operation in close proximity to an electrical wall outlet.
It is a further objective of the present invention to provide a device which depresses the brake pedal of a vehicle slowly and smoothly.
Additional aspects and objects of the invention will be apparent from the detailed descriptions and the claims herein.
Reference will now be made in detail to certain embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in reference to these embodiments, it will be understood that they are not intended to limit the invention. Conversely, the invention is intended to cover alternatives, modifications, and equivalents that are included within the scope of the invention as defined by the claims. In the following disclosure, specific details are given as a way to provide a thorough understanding of the invention. However, it will be apparent to one skilled in the art that the present invention may be practiced without these specific details.
Referring to the drawings, wherein like reference characters designate like or corresponding parts throughout the several views, and referring particularly to
Without limiting the invention,
The adjustable support 101 may have a first end 161 and a second end 162, the first end 161 being near the steering wheel of the vehicle 171 and the second end being nearer to the brake pedal 174 of the vehicle 171 when the invention 100 is installed (see
The wheel mount 102 may be attached at the first end 161 of the adjustable support 101. The wheel mount 102 may comprise a rigid hook 188 with a swinging arm 189, the swinging arm 189 being operable to swing outward, away from the first end 161 of the adjustable support 101, while the rigid hook 188 is installed on the steering wheel 175 (see
The pedal mount 105 may be attached to a distal end 164 of the pneumatic system 103 and secure the pneumatic system 103 in position to depress the brake pedal 174 of the vehicle 171. The pedal mount 105 may include a plate 143, a leg tip 141, and a hook and loop fastener 142, the plate 143 being attached to the distal end of the pneumatic system 103, and supporting the leg tip 141 and the hook and loop fastener 142. The hook and loop fastener 142 may comprise a strap of sufficient length to wrap around the brake pedal 174, slide through a slot of the plate 143, and fold back against itself. The pedal mount 105 may comprise a commercially available hook and loop fastener 142 such as a Velcro® strap. The leg tip 141 may be attached to a bottom side of the plate 143 and be operable to be secured against the brake pedal 174 when the hook and loop fastener 142 is in a secured position.
The pneumatic system 103 may be operable to extend the length of the brake and steering engagement device and may comprise a pneumatic cylinder 121, a pneumatic shaft 122, and a pneumatic control 123, the pneumatic control 123 comprising an air input port 124 and an air exhaust port 125. The air input port 124 may be operable to connect to and receive air pressure from a compressed air source 128 (see
The pneumatic control 123 may be in fluid communication with the pneumatic cylinder 121 and be operable to direct air pressure into, or release air pressure from, the pneumatic cylinder 121. The pneumatic cylinder 121 may house the pneumatic shaft 122 in an air-tight and telescopic manner, such that the pneumatic shaft 122 is operable to extend out of the pneumatic cylinder 121 as air pressure is directed into the pneumatic cylinder 122 via the pneumatic control 123, causing the pedal mount 105 to apply pressure to the brake pedal 174 of the vehicle. The pneumatic shaft 122 may also be operable to retract back into the pneumatic cylinder 121 as air pressure is released from the pneumatic cylinder 121 via the pneumatic control 123, releasing pressure from the brake pedal 174.
The pneumatic system 103 may further include an adjustable valve 165, the adjustable valve 165 being operable to limit the flow of air moving between the pneumatic control 123 and the pneumatic cylinder 121, thereby slowing the extension or retraction of the pneumatic shaft 122. The adjustable valve 165 may be operable to be adjusted to increase or decrease the maximum flow of air moving between the pneumatic control 103 and the pneumatic cylinder 121. The adjustable valve 165 may include an adjusting screw 166, the maximum flow of air moving between the pneumatic control 103 and the pneumatic cylinder 121 being adjusted by turning the adjusting screw 166.
Referring now to
In some embodiments, the remote control button 133 may be operable to cause the pneumatic control 103 to either open the air input port 124, or the air exhaust port 125, depending on how long the remote control button 133 is depressed. The remote receiver 132 is a receiver that communicates with the fob 131 using the remote control channel 135. The remote control channel 135 being a radio frequency link. The remote receiver 132 controls the operation of the air valve 126. The fob 131 may send a radio frequency control signal to the remote receiver 132. The remote control button 133 is a switch that is mounted on the fob 131. The actuation of the remote control button 133 may cause the fob 131 to establish the radio frequency link between the remote control button 133 and the remote receiver 132.
The remote receiver 132 is a radio-receiving device. The remote receiver 132 receives the signal from the fob 131 and, based on the signal, the remote receiver 132 may send a command to the pneumatic control 123 to change the position of the solenoid valve 126 from a closed position, to: 1) forming a fluidic connection between the compressed air source 128 and the pneumatic cylinder 121; or 2) forming a fluidic connection between the pneumatic cylinder 121 and the air exhaust port 125; and 3) moving back to a closed position. The remote control system 104 may comprise a commercially available 433 MHz remote control switch and receiver.
A user may cause the pneumatic control 103 to open the air input port 124 by depressing the remote control button 133 for longer than an predetermined period of time (e.g., 0.5 seconds), and close the air input port 124 by releasing the remote control button 133. The air exhaust port 125 may be opened by depressing the remote control button 133 for less than the predetermined period of time. Upon installation of the invention 100 in the vehicle 171, the first actuation of the remote control button 133 may be used to depress the brake pedal 174 in order to apply pressure to the hydraulic fluid of the vehicle brake system 172, and the second actuation of the remote control button 133 may be used to release pressure from the brake pedal 174 such that the resulting pumping action may subsequently be repeated.
The power system 106 may be operable to provide power to each of the remote receiver 132 and the pneumatic control 123. The power system 106 may comprise an outlet plug 151 and a power source housed near the remote receiver 132 and pneumatic control 123, the outlet plug 151 being operable to plug into the electrical system 173 of the vehicle 171, and comprising a cigarette lighter plug.
In still further examples, the wheel mount may not have a fastener that wraps around the steering wheel, and instead pressure fits onto the steering wheel. As shown in
In some embodiments of the present invention, the interior surfaces of the wheel mount that interface with the steering wheel may be covered with a high friction surface, such as a knurled metal or plastic surface, or a tacky rubber surface to increase the coefficient of friction between the steering wheel and the wheel mount. For example, the high friction material may provide a static coefficient of friction in the range of 0.5 to 1.0.
In some embodiments, the pedal mount may include a bracket for fitting over the brake pedal of the vehicle. As shown in
In some embodiments, the pedal mount may have a bracket structure that may be pressure fit over the face of the brake pedal 174. As shown in
In some embodiments, the pedal mount may include a bracket for fitting over the brake pedal of the vehicle that has an adjustable size. To accommodate the varying vertical dimension of brake pedals, some embodiments of the pedal mount may have a two piece bracket that can be expanded or contracted by virtue of a sliding joint between the two pieces of the bracket. In some embodiments, the bracket may grip the back side of the pedal and the sliding joint may be lockable, such that no strap is needed to wrap around the pedal to secure it in place. As shown in
The first 1502a and second 1502b wheel mounts may each further comprise an extendable support 1505 and a pivoting base 1506, the extendable support 1505 being adjustable in length and the pivoting base 1506 being operable to adjust the angle of the extendable support 1505 in relation to the second arm 182 of the adjustable support. The extendable support 1505 and pivoting base 1506 may allow the device of the present invention to accommodate steering wheels of various sizes and shapes (e.g., non-round steering wheels, or steering wheels having wide spokes or support members which prevent attachment of a wheel mount in a certain area of the steering wheel). By extending the length of the extendable supports 1505, or adjusting the angle of the extendable supports 1505 via the pivoting bases 1506, a distance may be increased between the laterally extending curved surfaces 1503 of the first 1502a and second 1502b wheel mounts. The greater distance may allow the first 1502a and second 1502b wheel mounts to be attached to a steering wheel SW having a greater diameter, or to move the first 1502a and second 1502b wheel mounts to wider lateral positions on the steering wheel SW, providing increased leverage for the device to prevent rotation of the steering wheel SW. Each of the first 1502a and second 1502b wheel mounts may further comprise a pivoting joint connecting the laterally extending curved surface 1503 to the extendable support 1505, allowing the angle of the laterally extending curved surface 1503 to match the angle of the steering wheel SW at the point of engagement therewith.
With respect to the above description, it is to be realized that the optimum dimensional relationship for the various components of the invention described above and in
The present invention provides a device and related methods for remotely depressing a brake pedal of a vehicle in order to bleed the hydraulic brake system, check the brake light function, flushing the brake fluid, or air brake diagnoses to check for air leaks and function. It shall be noted that those skilled in the art will readily recognize numerous adaptations and modifications which can be made to the various embodiments of the present invention which will result in an improved invention, yet all of which will fall within the spirit and scope of the present invention as defined in the following claims. Accordingly, the invention is to be limited only by the scope of the following claims and their equivalents.
The present invention provides a device and methods for bleeding the brake system of a vehicle without the need for two people to participate in the operation. It is to be understood that variations, modifications, and permutations of embodiments of the present invention, and uses thereof, may be made without departing from the scope of the invention. It is also to be understood that the present invention is not limited by the specific embodiments, descriptions, or illustrations or combinations of either components or steps disclosed herein. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. Although reference has been made to the accompanying figures, it is to be appreciated that these figures are exemplary and are not meant to limit the scope of the invention. It is intended that the scope of the invention be defined by the claims appended hereto and their equivalents.
| Number | Date | Country | |
|---|---|---|---|
| Parent | 15802882 | Nov 2017 | US |
| Child | 16724101 | US |
