B62K21/08

Steering mechanism and wheelchair including the same
11737937 · 2023-08-29 · ·

A wheelchair W includes: a column shaft (50) extending from the rear portion of a front fork (51) and turnably supported by a vehicle-body frame (2); a rocking bar (81a) that is rockably attached to the vehicle-body frame (2) and rocks according to a force applied by a rider; and a link mechanism (82) that joins the rocking bar (81a) and the column shaft (50) and turns the column shaft (50) according to rock of the rocking bar (81a).

Steering mechanism and wheelchair including the same
11737937 · 2023-08-29 · ·

A wheelchair W includes: a column shaft (50) extending from the rear portion of a front fork (51) and turnably supported by a vehicle-body frame (2); a rocking bar (81a) that is rockably attached to the vehicle-body frame (2) and rocks according to a force applied by a rider; and a link mechanism (82) that joins the rocking bar (81a) and the column shaft (50) and turns the column shaft (50) according to rock of the rocking bar (81a).

Coupled suspension system for bicycles

A bicycle comprising a frame; a handlebar assembly attached to an upper steering tube of the frame in such a way that at least the relative rotation between the two with respect to an upper axis is allowed, but the relative displacements between both in the directions perpendicular to the upper axis are restricted; a fork attached to a lower steering tube of the frame so that it has the same degrees of freedom relative to the lower axis between the fork and the lower steering tube as the degrees of freedom relative to the upper axis between the handlebar assembly and the upper steering tube; and a means for rotation transmission for transmitting at least partially a rotation of the handlebar assembly with respect to the upper tube into a rotation of the fork with respect to the lower steering tube.

Coupled suspension system for bicycles

A bicycle comprising a frame; a handlebar assembly attached to an upper steering tube of the frame in such a way that at least the relative rotation between the two with respect to an upper axis is allowed, but the relative displacements between both in the directions perpendicular to the upper axis are restricted; a fork attached to a lower steering tube of the frame so that it has the same degrees of freedom relative to the lower axis between the fork and the lower steering tube as the degrees of freedom relative to the upper axis between the handlebar assembly and the upper steering tube; and a means for rotation transmission for transmitting at least partially a rotation of the handlebar assembly with respect to the upper tube into a rotation of the fork with respect to the lower steering tube.

SCOOTER

A dual-pedal driven scooter includes a frame having a front end and a rear end. Front wheels and a rear wheel that are connected to the frame at the front end and the rear end, respectively. A transmission mechanism is configured to drive the rear wheel to thereby drive the scooter. A pedal is configured to drive the scooter wherein. The transmission mechanism is provided with a transmission rope that links the pedal and the rear wheel. The pedal is fixedly connected to the transmission rope to thereby drive the rear wheel by pulling the transmission rope.

Stop for handlebars of two- and three-wheeled vehicles and method for manufacturing such a stop
20210354775 · 2021-11-18 · ·

A stop for handlebars of two-wheeled vehicles is integrated into the control head bearing of the vehicle. It is formed by a first component installed in the control head bearing with a circular arc-shaped groove that is arranged coaxially to the rotational axis of the control head bearing and a stop element protruding into this groove. The stop element is arranged on a second component that can be moved relative to the first part. The stop at the lower control head bearing is arranged within the head tube. The circular arc-shaped groove is arranged in the base and open towards the lower bearing shell. The lower bearing shell comprises an open recess extending over its height to the lower rolling bearing, which receives a stop element. The stop element has a radial lug protruding into the circular groove of the base.

THREE-WHEELED TILTING VEHICLE
20210354781 · 2021-11-18 ·

A tiltable vehicle has a pair of front wheels coupled to a tiltable chassis by a tilt linkage, such that the pair of front wheels and the chassis are configured to tilt in unison with respect to a roll axis of the chassis. The tilt linkage includes a four-bar linkage having a pair of upper bar segments coupled to the chassis at spaced-apart respective inboard joints. In some examples, the inboard joints of the upper bar segments are each disposed outboard of a central chassis joint of a lower bar of the tilt linkage. An orientation sensor is configured to detect directional information regarding a net force vector applied to the chassis, and a tilt actuator operatively coupled to the chassis and configured to selectively tilt the chassis. A controller is configured to selectively control the tilt actuator based on the directional information from the orientation sensor.

SINGLE-TRACK LAND VEHICLE
20210354776 · 2021-11-18 ·

The invention relates to a single-track land vehicle, which is designed, for example, as a bicycle (1), electric bike or electric scooter and has a vehicle frame (2) and a vehicle fork (5), which (5) has a fork steerer tube (4), which fork steerer tube (4) is mounted pivotably in a head tube (3) of the vehicle frame (2), wherein it is possible by means of a pivoting-angle brake or limiter (6) to at least decelerate the pivoting in of the vehicle fork (5) relative to the vehicle frame (2) and/or to define the maximum pivoting-in angle. For the single-track land vehicle according to the invention, it is characteristic that the pivoting-angle brake or limiter (6) has a tension element (7), which (7) is connected to the vehicle frame (2) via a holding element (8) held in the interior of the vehicle frame (2) or held on the vehicle frame, and that a holding counter-element (9) is provided on the tension element (7) at a distance from the holding element (8), which (9) rests or strikes against the vehicle fork (5) or against the fork steerer tube (4) when the pivoting-angle brake or limiter is activated (cf. FIG. 5).

SINGLE-TRACK LAND VEHICLE
20210354776 · 2021-11-18 ·

The invention relates to a single-track land vehicle, which is designed, for example, as a bicycle (1), electric bike or electric scooter and has a vehicle frame (2) and a vehicle fork (5), which (5) has a fork steerer tube (4), which fork steerer tube (4) is mounted pivotably in a head tube (3) of the vehicle frame (2), wherein it is possible by means of a pivoting-angle brake or limiter (6) to at least decelerate the pivoting in of the vehicle fork (5) relative to the vehicle frame (2) and/or to define the maximum pivoting-in angle. For the single-track land vehicle according to the invention, it is characteristic that the pivoting-angle brake or limiter (6) has a tension element (7), which (7) is connected to the vehicle frame (2) via a holding element (8) held in the interior of the vehicle frame (2) or held on the vehicle frame, and that a holding counter-element (9) is provided on the tension element (7) at a distance from the holding element (8), which (9) rests or strikes against the vehicle fork (5) or against the fork steerer tube (4) when the pivoting-angle brake or limiter is activated (cf. FIG. 5).

Tilt-Decoupled Steering Device of a Motorbike
20220009584 · 2022-01-13 ·

A tilt-decoupled steering device of a motorbike includes a handlebar bridge for receiving a motorbike handlebar, a fork bridge for receiving a fork leg, and at least one decoupling device connecting the handlebar bridge to the fork bridge. The handlebar bridge is mounted such that it can rotate about a steering axis and is secured about a tilt axis orthogonal to the steering axis, and the fork bridge is mounted such that it can rotate about the steering axis and about the tilt axis. The decoupling device transfers a steering movement and a steering torque in a steering direction about the steering axis between the handlebar bridge and the fork bridge, and compensates for a tilting movement in a tilting direction about the tilt axis of the fork bridge relative to the handlebar bridge.