Back to results
US 11,590,998 B2Granted
Stroller frame and stroller
AssigneeCYBEX GmbH
InventorsIain Powell, Jiri Spour
Life of this patent
Estimating the term…
Abstract
A stroller frame, comprising at least one motor, particularly an electric motor, for assisted driving of the stroller frame, a pusher bar for pushing the stroller frame and at least one force sensor device for detecting a direction and/or an amount of force and/or a force component acting on the pusher bar, and/or for detecting a value derived from said force or force component, particularly a temporal change of the force or force component.
Claims21
A stroller frame, comprising:
- at least one motor, particularly an electric motor, for assisted driving of the stroller frame;
- a pusher bar for pushing the stroller frame;
- at least one force sensor device for detecting a direction or an amount of a force or a force component which acts on the pusher bar, or to detect a value derived from this force or force component, particularly a temporal change of the force or force component;
- and
- at least one control device which is in operative connection with the at least one force sensor device, particularly in such manner that an output from the at least one force sensor device can be used for controlling the at least one motor,
- wherein one or both of
- the at least one control device is configured such that at least one motor is started when a first threshold of the force or force component or the value derived therefrom is exceeded, or is configured such that at least one motor is stopped or kept at constant power when a second threshold of the force or force component or the value derived therefrom is exceeded, and
- the at least one control device is configured such that when a threshold Fd of a downward acting force is exceeded or when a threshold Fu of an upward acting force is exceeded, or when a threshold Fr2 of a forward acting force is exceeded or when a threshold Fr2 of a backwards acting force is exceeded, at least one motor is stopped or maintained at a constant power, wherein Ff2 or Fr2 is preferably greater, particularly at least 2 times or 5 times or 20 times as great as/greater than Fu or Fd or wherein upon falling below, after previously exceeding Ff2, Fr2, Fu and/or Fd the motor is started again, or wherein the at least one control device is configured such that upon exceeding a threshold Ff1 of a forward acting force or upon exceeding a threshold Fr1 of a backward acting force, at least one motor is started, wherein Ff1 is preferably smaller than Fr2 or Fr1 is preferably smaller than Fr2.
5 more elements
A stroller frame comprising:
- at least one motor, particularly an electric motor, for assisted driving of the stroller frame;
- a pusher bar for pushing the stroller frame;
- at least one force sensor device for detecting a direction or an amount of a force or a force component which acts on the pusher bar, or to detect a value derived from this force or force component, particularly a temporal change of the force or force component;
- and
- at least one control device which is in operative connection with the at least one force sensor device, particularly in such manner that an output from the at least one force sensor device can be used for controlling the at least one motor,
- wherein at least one parking brake device is provided,
- wherein the at least one control device is configured such that the parking brake device is activated automatically after a predetermined time, preferably between 3 seconds and 5 minutes after a standstill of the stroller frame,
- or wherein the at least one control device is configured such that the parking brake device is activated automatically after a standstill or a relatively low speed is reached following previous travel.
5 more elements
A stroller frame comprising:
- at least one motor, particularly an electric motor, for assisted driving of the stroller frame;
- a pusher bar for pushing the stroller frame;
- and
- at least one force sensor device for detecting a direction or an amount of a force or a force component which acts on the pusher bar, or to detect a value derived from this force or force component, particularly a temporal change of the force or force component,
- wherein at least one display or signalling device is provided, wherein the at least one display or the signalling device alerts the user of the stroller frame when a motor support is present or may be present.
2 more elements
Dependencies are inferred from the claim text.