Braking device
OwnerSven Malmströminventor
Life of this patent
Estimating the term…
Abstract
A brake system for a wheeled walker frame having two walker frame legs with two telescopically adjustable frame tubes, of which one frame tube supports in its upper region a handle and a brake lever and the other is provided in its lower region with a brake device for braking a wheel. A telescopically adjustable brake rod is disposed within the frame tubes, between the brake lever and the brake device, and includes two parallel rods of which one is interconnected with the brake lever and the other is interconnected with the brake device. An axial longitudinal adjustment of the frame tubes to the desired vertical position synchronously causes a corresponding alteration of the length of the brake rod. At least one device is provided for locking the frame tubes and the parallel rods.
Claims12
A wheeled walker comprising first and second walker frame legs, each leg including:
- an upper frame tube having an upper end;
- a lower frame tube having a lower end, the lower frame tube engaging the upper frame tube while permitting telescopic longitudinal movement therebetween;
- a handle on the upper frame tube upper end;
- a wheel rotatably mounted on the lower frame tube lower end;
- a brake lever connected to the upper frame tube upper end adjacent the handle and normally assuming a non-braking position while being pivotable to a braking position;
- a brake device connected to the lower frame tube lower end and adapted to engage and brake the wheel;
- a brake rod extending within the upper frame tube and the lower frame tube and including an upper rod member and a lower rod member engaging the upper rod member while permitting telescopic longitudinal movement therebetween, the upper rod member having an upper end connected with the brake lever, the lower rod member having a lower end connected with the brake device;
- and
- locking means extending into the upper frame tube and the lower frame tube to engage the brake rod, said locking means being adapted for movement between an unlocking position, permitting longitudinal movement between the upper frame tube and the lower frame tube and longitudinal movement between the upper rod member and the lower rod member, and a locking position, prohibiting longitudinal movement between the upper frame tube and the lower frame tube and longitudinal movement between the upper rod member and the lower rod member such that pivoting of the brake lever from the non-braking position to the braking position moves the brake rod longitudinally within the upper and lower frame tubes, causing the brake device to engage the wheel.
A wheeled walker comprising first and second walker frame legs, each leg including:
- an upper frame tube having an upper end;
- a lower frame tube having a lower end, the lower frame tube engaging the upper frame tube while permitting telescopic longitudinal movement therebetween;
- a handle on the upper frame tube upper end;
- a wheel rotatably mounted on the lower frame tube lower end;
- a brake lever connected to the upper frame tube upper end adjacent the handle and normally assuming a non-braking position while being pivotable to a braking position;
- a brake device connected to the lower frame tube lower end and adapted to engage and brake the wheel;
- a brake rod extending within the upper frame tube and the lower frame tube and including an upper rod member and a lower rod member engaging the upper rod member while permitting telescopic longitudinal movement therebetween, the upper rod member having an upper end connected with the brake lever, the lower rod member having a lower end connected with the brake device;
- and
- a single locking device adapted for movement between an unlocking position, permitting longitudinal movement between the upper frame tube and the lower frame tube and longitudinal movement between the upper rod member and the lower rod member, and a locking position, prohibiting longitudinal movement between the upper frame tube and the lower frame tube and longitudinal movement between the upper rod member and the lower rod member such that pivoting of the brake lever from the non-braking position to the braking position moves the brake rod longitudinally within the upper and lower frame tubes, causing the brake device to engage the wheel.
Dependencies are inferred from the claim text.