Abstract:
A wheelchair braking device providing a braking action that automatically disengages when an occupant is seated in the wheelchair. The braking device includes a support structure to which a sensing lever is pivotably mounted and to which a braking arm is slidably mounted. A biasing element is coupled to the braking lever to bias the braking arm in a first direction relative to the support structure and into engagement with a wheel of the wheelchair, thereby inhibiting rotation of the wheel. The sensing lever and braking arm are interconnected such that the biasing element operates through the braking arm to bias the sensing lever in an upward direction against the wheelchair seat. The interconnection between the sensing lever and braking arm causes the braking arm to disengage from the wheel when the sensing lever rotates in a downward direction.
Abstract:
The invention represents the disclosure of a novel automatically activated device that locks the wheels of a wheelchair, to prevent backward motion of the chair when the occupant arises, reducing the risk that the chair's occupant may fall due to the backward motion of the chair. The device is activated when the occupant leaves the seated position And the device is inactivated when the occupant resumes the seated position in the chair, allowing the wheels again to move freely. The device, which is designed to be installed upon existing wheelchairs, and newly manufactured wheelchairs, includes a disabling device, enabling free movement of the wheelchair when unoccupied.
Abstract:
A wheelchair alarm system includes a frame adapted to be mounted beneath the wheelchair seat, an electrically operated alarm securely attached to the frame, a first switch securely attached to the frame and adapted to be maintained in contact with the wheelchair seat, and second and third switches securely attached to the frame and adapted to be positioned in the path of movement of the wheelchair brake assemblies. The alarm and the three switches are electrically connected in such a manner that the alarm is actuated if the first switch is closed and if either the second or third switch is closed, indicating that the wheelchair seat is unoccupied and at least one of the brakes is disengaged.
Abstract:
A cart apparatus to facilitate the play of disc golf may include but not be limited to a chassis, at least three wheels rotatably coupled to the chassis, a handle member mounted to the chassis, a floor platform mounted on the chassis and at least one seat member retractably mounted on the floor platform such that the seat member descends through the floor platform with the application of a sufficient weight and the seat member ascends through the floor platform after the removal of the weight. The seat member may consist of a seat mounted on a support. When someone sits on the seat the seat support descends through a hole in floor platform until it hits the ground. The ground then supports the weight of the sitter. When the sitter stands up and gets off the seat, the member ascends through the floor platform back to its starting position, or close thereto. Folding or collapsible embodiments of the cart apparatus allow it to be stored or transported more easily. Alternative embodiments provide baskets, consoles and accessories to enhance the ease, convenience and enjoyment of disc golf.
Abstract:
A wheelchair is disclosed that includes a seat, a pair of wheels, a detection part indicating the presence or absence of a user on the seat, electric brake units switching between applying braking forces to and releasing braking forces from the wheels based on control signals, and a control part connected to the detection part and the electric brake units and outputting the control signals to the electric brake units. The control signals include a first control signal causing the braking forces by the electric brake units to be applied to the wheels and a second control signal causing the braking forces by the electric brake units to be released therefrom. The first control signal is output when the detection part indicates the absence of the user on the seat, and the second control signal is output when the detection part indicates the presence of the user on the seat.
Abstract:
The invention provides a propulsion, braking and anti-rollback control assembly for use in manually propelled vehicles such as wheelchairs. In one embodiment, the invention provides a wheelchair with a control lever assembly and related force conveyance connecter that propel, brake and steer the wheelchair in a mechanically advantageous way while minimizing rollback. A seat-activated auxiliary braking system is also provided. Additionally, the invention provides a selective anti-rollback disengagement system that facilitates selective rollback.
Abstract:
An anti-rollback assembly adapted or adaptable for use in combination with a wheelchair. The anti-rollback assembly includes a one-way brake assembly automatically immobilizing the wheelchair against rearward movement when the occupant attempts to rise from or sit in a seat member of the wheelchair, yet at the same time does not prevent the wheelchair from moving in a forward direction. Conversely, when the occupant is fully seated in the seat member, the one-way brake assembly is disengaged so that the wheelchair can move freely in forward or rearward directions. The assembly can be retrofitted onto existing wheelchairs, and is adjustable to fit various size wheelchairs.
Abstract:
A wheelchair braking device providing a braking action that automatically disengages when an occupant is seated in the wheelchair. The braking device includes a support structure to which a sensing lever is pivotably mounted and to which a braking arm is slidably mounted. A biasing element is coupled to the braking lever to bias the braking arm in a first direction relative to the support structure and into engagement with a wheel of the wheelchair, thereby inhibiting rotation of the wheel. The sensing lever and braking arm are interconnected such that the biasing element operates through the braking arm to bias the sensing lever in an upward direction against the wheelchair seat. The interconnection between the sensing lever and braking arm causes the braking arm to disengage from the wheel when the sensing lever rotates in a downward direction.
Abstract:
The invention provides a propulsion, braking and anti-rollback control assembly for use in manually propelled vehicles such as wheelchairs. In one embodiment, the invention provides a wheelchair with a control lever assembly and related force conveyance connecter that propel, brake and steer the wheelchair in a mechanically advantageous way while minimizing rollback. A seat-activated auxiliary braking system is also provided. Additionally, the invention provides a selective anti-rollback disengagement system that facilitates selective rollback.
Abstract:
A conventional wheel chair is modified by the provision of a safety system for automatically actuating the brakes of the wheel chair and lifting the foot rests when the weight of the patient is lifted from the seat. An overcenter spring arrangement is used to bias the brake mechanism into the braking position and is pulled over center by a solenoid actuated by a switch under the seat. The actuation of the brake mechanism is communicated to the foot pedals by a connection cable which pulls a latch pin to release the spring biased foot pedal into the retracted position.