Vehicle with an actuator for adjusting a limiter strap

Patent metadata

Field	Value
Publication number	US-11235634-B2
Application number	US-201716336257-A
Country	US
Kind code	B2
Filing date	Sep 26, 2017
Priority date	Sep 30, 2016
Publication date	Feb 1, 2022
Grant date	Feb 1, 2022

Abstract

A vehicle comprises a chassis, a seat, an endless drive track, a rear suspension assembly with at least one slide rail and a substantially inextensible limiter strap extending between the chassis and the at least one slide rail, to limit separation between the at least one slide rail and the chassis. The strap holder is moveable between a first holder position and a second holder position, a position of the end of the limiter strap being different in the first strap holder position compared to the second strap holder position. A control cable is operatively connects the strap holder to a strap adjustment actuator. The strap adjustment actuator is disposed forward of the seat and is operable by a user during operation of the vehicle, the strap adjustment actuator being movable between first and second positions related to the positions of the strap holder.

First claim

What is claimed is:

1. A vehicle, comprising:
a chassis;
at least one seat connected to the chassis;
a motor connected to the chassis;
an endless drive track disposed below the chassis, the endless drive track being operatively connected to the motor for propulsion of the vehicle;
a rear suspension assembly supporting the endless drive track, the rear suspension assembly comprising:
a left slide rail;
a right slide rail;
at least one suspension arm pivotally connected to one of the left and right slide rails and pivotally connected to the chassis;
a shock absorber connected between the chassis and the one of the left and right slide rails;
a limiter strap extending between the chassis and the one of the left and right slide rails, the limiter strap being substantially inextensible to limit separation between the one of the left and right slide rails and the chassis;
a strap holder connected between an end of the limiter strap and one of:
the one of the left and right slide rails, and
the chassis,

the strap holder being moveable between a first holder position and a second holder position, a position of the end of the limiter strap being different in the first strap holder position compared to the second strap holder position;

a control cable having a first end operatively connected to the strap holder of the rear suspension assembly;
a strap adjustment actuator operatively connected to a second end of the control cable, the strap adjustment actuator being disposed forward of the at least one seat, the strap adjustment actuator being operable by a user during operation of the vehicle,
the strap adjustment actuator being operatively connected to the strap holder via the control cable, the strap adjustment actuator being movable between a plurality of actuator positions, the plurality of actuator positions including at least a first actuator position and a second actuator position, a position of the strap holder being related to a selected one of the plurality of actuator positions; and
a biasing member,
a first end of the biasing member being operatively connected to the strap holder, moving the strap holder toward the second strap holder position compressing the biasing member, the biasing member biasing the strap holder toward the first strap holder position.

2. The vehicle of claim 1 , wherein when the limiter strap is taut:
the strap holder is prevented from moving from the first strap holder position to the second strap holder position; and
the strap holder is prevented from moving from the second strap holder position to the first strap holder position.

3. The vehicle of claim 1 , wherein:
the biasing member is a torsion spring having a torsion axis; and
a first end of the torsion spring is connected to the strap holder.

4. The vehicle of claim 1 , further comprising:
a rotating cylinder connected to the first end of the control cable on a first side of the rotating cylinder;
a lever having a first end and a second end, the first end of the lever being connected to a second side of the rotating cylinder; and
a rigid member having a first end and a second end, the first end of the rigid member being connected to the second end of the lever, the second end of the rigid member being connected to the strap holder.

5. The vehicle of claim 4 , wherein:
the chassis includes a tunnel, the rear suspension assembly being connected the tunnel; and
the rotating cylinder is received in an opening in a side wall of the tunnel, the rotating cylinder extending at least partially into an interior of the tunnel.

6. A vehicle, comprising:
a chassis;
at least one seat connected to the chassis;
a motor connected to the chassis;
an endless drive track disposed below the chassis, the endless drive track being operatively connected to the motor for propulsion of the vehicle;
a rear suspension assembly supporting the endless drive track, the rear suspension assembly comprising:
a left slide rail;
a right slide rail;
at least one suspension arm pivotally connected to one of the left and right slide rails and pivotally connected to the chassis;
a shock absorber connected between the chassis and the one of the left and right slide rails;
a limiter strap extending between the chassis and the one of the left and right slide rails, the limiter strap being substantially inextensible to limit separation between the one of the left and right slide rails and the chassis;
a strap holder connected between an end of the limiter strap and one of:
the one of the left and right slide rails, and
the chassis,

the strap holder being moveable between a first holder position and a second holder position, a position of the end of the limiter strap being different in the first strap holder position compared to the second strap holder position;

a control cable having a first end operatively connected to the strap holder of the rear suspension assembly;
a strap adjustment actuator operatively connected to a second end of the control cable, the strap adjustment actuator being disposed forward of the at least one seat, the strap adjustment actuator being operable by a user during operation of the vehicle,

the strap adjustment actuator being operatively connected to the strap holder via the control cable, the strap adjustment actuator being movable between a plurality of actuator positions, the plurality of actuator positions including at least a first actuator position and a second actuator position, a position of the strap holder being related to a selected one of the plurality of actuator positions; and
a handlebar connected to the chassis,
the strap adjustment actuator being a twist grip actuator disposed on the handlebar,
the twist grip actuator being movable between at least the first actuator position and the second actuator position by twisting the twist grip actuator about the handlebar.

7. The vehicle of claim 6 , further comprising:
a left handle disposed on a left side portion of the handlebar;
a brake lever disposed on the left side portion, the brake lever being connected to a brake fluid reservoir, the brake fluid reservoir being connected to the handlebar rightward of the left handle;
a right handle disposed on a right side portion of the handlebar;
a throttle lever disposed on the right side portion, a left end portion of the throttle lever being connected to the handlebar leftward of the right handle; and
wherein the twist grip actuator is disposed between one of:
the left handle and the brake fluid reservoir, and
the right handle and the left end portion of the throttle lever.

8. The vehicle of claim 6 , further comprising:
a handle disposed on a side portion of the handlebar; and
wherein the twist grip actuator is disposed on the handlebar laterally inward of the handle.

9. The vehicle of claim 8 , wherein the twist grip actuator is less than 5 cm from a laterally inward edge of the handle.

10. The vehicle of claim 6 , further comprising:
a handlebar riser disposed between the handlebar and the chassis; and
at least one body panel connected to the chassis; and
wherein:
the control cable runs from the twist grip actuator, along the handlebar, along the handlebar riser and in an interior of the at least one body panel to the strap holder.

11. A vehicle, comprising:
a chassis;
at least one seat connected to the chassis;
a motor connected to the chassis;
an endless drive track disposed below the chassis, the endless drive track being operatively connected to the motor for propulsion of the vehicle;
a rear suspension assembly supporting the endless drive track, the rear suspension assembly comprising:
a left sl

Assignees

• Bombardier Recreational Products Inc

Inventors

• Lavallee Jean-Simon
• Bourassa Michel

Classifications

• B62M2027/026

  Snow mobiles characterised by the suspension means · CPC title

• B62L3/023

  acting on fluid pressure systems · CPC title

• B62D55/1083

  Torsion-bar springs · CPC title

• B62D55/07

  Mono-track vehicles · CPC title

• B60G2300/322

  Snowmobiles · CPC title