This section provides an overview for soft down stays as well as their applications and principles. Also, please take a look at the list of 10 soft down stay manufacturers and their company rankings.
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A soft down stay is a stay that is designed to come down more slowly than a normal stay.
A stay is a device that is attached to a door or lid together with a hinge to generate a torque that acts as a resistance to allow the door or lid to open slowly. Stays are usually installed on doors of large shelves.
A soft down stays can open and close doors more slowly than ordinary stays, and they can also be used to hold the door or lid in place while it is being opened.
Soft down stays are used to open shelf doors from the top down or from the bottom up. The soft down stays used in this case have different specifications for top-to-bottom and bottom-to-up opening.
In particular, even if you let go of the door during opening, it will stop in that position and generate resistance torque when opening or closing, so that the door will move slowly instead of violently opening or closing, even if you apply too much force, thus avoiding unnecessary damage. For this reason, it is often used in TV boards.
Soft down stays incorporate a mechanism called the RAPCON mechanism, which allows them to move more slowly and softly than normal stays.
The RAPCON mechanism is a damper structure of a cylinder filled with a highly viscous liquid. In the middle of the cylinder, there is an orifice, which is narrower than the rest of the cylinder. When opening and closing, the liquid in the cylinder is pushed or pulled through the orifice, creating resistance, which in turn generates resistance torque. This torque depends on the viscosity of the liquid, and adjusting the viscosity adjusts the torque. Viscosity changes with temperature, with the features of viscosity decreasing as temperature increases, and freezing occurs when the temperature is too low. Therefore, it is necessary to select a fluid with stable viscosity in the temperature range of normal use.
The soft down stays are basically a pair, one for the right side and the other for the left side. The soft down stays are attached to both the hinged door and the shelf itself.
*Including some distributors, etc.
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