Product Design

Installation

The Kidoor Catcher is easily installed by simply putting the overhanging metal grip over the top of the door that you wish to install this product on. The V-flaps of the Catcher should face the door frame after the installation.

How It Works

Within the body of the Catcher is a metal spring and a hydraulic system that prevents the door from slamming shut unexpectedly but can be easily closed with guidance by an adult with relatively moderate force. When the door is approaching the frame at a high speed, it is slowed down by the hydraulic system as it extends and the spring is stretched to a longer length. The door will not close unless further force is constantly applied to the door to overcome the counter reacting force of the spring and hydraulic system. Therefore, a child with less strength or a brief gust of wind would not be able to close the door. To open the door, the force required is actually less as the spring actually aids in opening the door, lessening the amount of strength required to overcome the counter-force of the hydraulic system.

General Design:

Manufacturing Methods

1. Mark off the wood. Refer to the diagrams
2. Cut the wood using the band saw / hand saw.
3. Mark off the metal using the blunt end of the hand saw.
4. Cut the metals with the hand saw.
5. Fold the metal for the clip using brake.
6. Round, file, sand the metals using the grinder.
7. Attach the V-shaped resistor with screw.
8. Attach the syringe and spring to the V-sahped resistor.
9. Position the metal within the yet-to-be assembled box
10. Assemble the box using carpenter's glue.
11. Attach the foam onto the tip of the V-shaped resistor.