Bus

Onspot unveils new automatic tire chain kit

Posted on September 16, 2011

Onspot Automatic Chains recently released its automatic tire chain kit for the new International Terrastar with air suspension. A kit is also available for the Terrastar with spring suspension.

The Onspot Automatic Tire Chain System offers the traction of a single set of conventional snow chains at the flip of a dashboard switch without having to stop the vehicle.

An electric switch mounted in the cab provides 12 volts to an air solenoid mounted on the vehicle’s frame rail. Compressed air to the solenoid is supplied from either the vehicle’s onboard air system or a 12-volt compressor kit. When the dashboard switch is activated the solenoid opens. This allows compressed air to enter the air cylinder and lower the chainwheel so it contacts the inside of the tire. The friction between the tire and the rubber covered chainwheel causes the chainwheel to rotate, creating enough centrifugal force to flail the chains out.

The principle of the system is similar to a small generator driven by a bicycle tire to operate a headlight. Six lengths of chain spaced at 60-degree intervals on the chainwheel ensure that there are always two chains between the tire and road surface whether the driver is accelerating, braking, or are in a wheel lockup condition. The traction from the chainwheel is obtained in forward or reverse. When the dashboard switch is turned off, the solenoid exhausts the air provided to the chain units and return springs in the air cylinders bring the chainwheels back to their resting position.

 

 

 

 

 

 

 

 

 

View comments or post a comment on this story. (0 Comments)

More News

Man charged with murder after stabbing Winnipeg Transit bus driver

The incident occurred at 2 a.m., when the driver pulled up to the last stop of his shift and asked the man to leave the bus. After a physical altercation, which ended up outside the bus, ensued, the driver was stabbed multiple times.

N.Y.'s NICE to add 33 New Flyer buses

Twenty-eight 40-foot buses will replace existing buses in the NICE fleet that have reached the end of their useful life, while five 60-foot buses will be used on the customer's new bus rapid transit line, scheduled to start service in 2017.

Nova Bus, ABB partner for electric bus, charger delivery to N. America

The ABB DC fast charger, with the associated systems, is based on the common interface, which allows charging stations and electrified buses from different manufacturers to be used together.

Proterra names Horton to CCO post

Will lead the end-to-end customer lifecycle as Proterra triples production and initiates large-scale deployments across North America.

Stertil-Koni adds new capabilities to transmission jack

The battery-operated jack can be charged overnight and used without cables. The pneumatic jack has an attached air hose to keep it working. Previously, transmission jacks were manually hand-pumped, much like a car jack.

See More News

Post a Comment

Post Comment

Comments (0)

More From The World's Largest Fleet Publisher

Automotive Fleet

The Car and truck fleet and leasing management magazine

Business Fleet

managing 10-50 company vehicles

Fleet Financials

Executive vehicle management

Government Fleet

managing public sector vehicles & equipment

TruckingInfo.com

THE COMMERCIAL TRUCK INDUSTRY’S MOST IN-DEPTH INFORMATION SOURCE

Work Truck Magazine

The number 1 resource for vocational truck fleets

Schoolbus Fleet

Serving school transportation professionals in the U.S. and Canada

LCT Magazine

Global Resource For Limousine and Bus Transportation

Please sign in or register to .    Close