C Type CONSTON | Sunco Spring Co., Ltd.

Features

The maximum output of the CONSTON spring is obtained at the point where it is pulled out by approx. a half or more turns from the drum.
After reaching the maximum output, the output is unchanged, no matter how long the stroke is stretched.
In contrast, the wire spring has a proportional relationship between the stroke and output; the longer the stroke, the stronger the force becomes.
An ordinary wire spring requires its own space, but a CONSTON requires only a small installation space because the long spring fits in a small-diameter drum.

Set length + stroke

Basically, the “set length” is the length from which the CONSTON spring is pulled out by approx. a half or more turns from the drum. The “stroke range” (repeated-operation range) begins with the “set length”; it must be used so that the total of “set length” plus “stroke” is within the specified range.

Typical usage

Hanging a heavy object to make it move up/down with light force.

Holding down an object or pushing it down with a constant force up to any desired length.

Pushing up a heavy object from below to balance it.

Remove the pinion-rack backlash.

Pushing and pulling it with a constant force.

* These figures are conceptual diagrams for the installation of C Type CONSTONs. In actual operations, they are used in conjunction with objects having a guiding role.

C Type CONSTON Practical Examples

Move up/down a heavy object with light force

Television camera pedestal

A television camera pedestal contains more than 20 C Type CONSTONs installed. The camera mass (about 100 kg) is completely balanced by the C Type CONSTONs, and thus, the camera operator can move it up/down with a slight force. It is designed to be balanced by removing some C Type CONSTONs depending on the camera mass.

Residential double-hung window

A double-hung window sash has C Type CONSTONs installed on its both sides. The window is balanced using the C Type CONSTONs, and thus, can be opened/closed with light force. This is available even for heavy windows by laying out multiple C Type CONSTONs in a well-balanced manner according to the window weight.

Opening/closing the power shovel front window

The fully openable front windshield (or windscreen) can be opened/closed lightly, with a C Type CONSTON installed to it.

Pushing up a heavy object (balanceable)

Adjusting the height of the fan wings

The fan wings can be balanced at any height by installing a C Type CONSTON in the direction in which it pushes up the wings and motor section (mass about 4.5 kg).

Adjusting the height of a large-screen display

To change the height of a large-screen display (mass about 80 kg) according to your viewing style, you can use a C Type CONSTON to adjust it lightly.

Hanging a heavy object (balanceable)

Elevating kitchen cabinets

For the beauty of the kitchen and effective use of its space, you can use a C Type CONSTON when storing the hanging cabinets, thereby allowing you to quickly take them out conveniently.

Holding down an object or pushing it down with a constant force

Always pressing an object with constant load

Even if the part (shown by hatching) wears and its dimensions change, the use of a C Type CONSTON allows it to be always held down with a constant load.

Product forward-feed store fixture

Taking out a product causes the C Type CONSTON to automatically feed the rear ones forward.

Gravity-0 free stop mechanism

CONSTAND

For example, a dental X-ray camera can be moved up/down lightly by installing a C Type CONSTON inside the support. It can also be balanced in any position without any stopper.

Stacked CONSTONs

If the output is insufficient with one CONSTON spring, you can use a stacked set of two or more CONSTON springs. (This is limited only to certain CONSTON springs conforming to the specifications. Contact us for details.)

Slit cover (covering CONSTON)

A C Type CONSTON can be a freely movable cover by utilizing its sturdiness and wideness and the nature to wind itself to the inside. The applications include control of dust and cutting chips on machine tools and light blocking.

Dust-proof protective cover for shafts and screws (spiral cover)

The spiral cover is made of strong metal (stainless steel for springs); thus, it can be a cover to protect important parts of machinery and instruments.

Inquiry

Company Name

Name

Address

Number

Field

Quotation

Standard product

Custom-made product

Others

Product Name

Required quantity (Prototype model)

Required quantity (Production model)

Main

Applications

Required output or torque

Working stroke (or number of rotations)

Life (number of repetitions)

Installable space and operating environment

Before submitting, please read our Agreement to Handle Personal Information