| 摘要 |
PURPOSE: A resilience adjusting apparatus for coil spring hinge is provided to achieve improvements enabling the hinge to be conveniently and rapidly installed between the door and door frame and the resilience of the coil spring to be easily adjusted. CONSTITUTION: An apparatus comprises rotating pipes(12, 12a) installed at upper and lower ends of a tube type body(11) which is formed integrally to a connecting plate(10), a supporting axis(20) being inserted into the lower rotating pipe(12a) so as to be screw-coupled to a lower end of the body(11) and fix the lower end of the coil spring arranged inside the body(11), the upper rotating pipe(12) is inserted with a rotary axis having at a center thereof a unit(21a) so that an upper end of the coil spring is fixed to a stepped stopper(42a) of the unit(21a), an upward ring-shaped ratchet(40) and an upward ring-shaped cam(41) are sequentially fixed at an inner periphery of the pipe(12), a downward ring-shaped cam(42) being involved with the upward ring-shaped cam(41), a head portion(43a) is caught at an interior of the stopper(42a), a protruded key(43b) being inserted into a key groove(23), the downward ratchet(43) being involved with the upward ratchet(40), a coil spring(31) having a low resilience is arranged onto the downward ratchet(43). |
