Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Including means to hold or retard hinged members against...
Patent
1994-05-09
1996-07-02
Howell, Daniel W.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Hinge
Including means to hold or retard hinged members against...
16348, 16333, 16362, 16364, E05D 1110, E05D 1506
Patent
active
055309933
ABSTRACT:
A device for holding a flap door to a horizontal open position under a locked condition can reduce any undesired load that may be applied to the flap door when it is unlocked so that the latter can be opened softly and lightly to avoid tear and wear of the related components and prolong the service life. A bracket 6 is rigidly fitted to a cut-out section 5 of the front edge of the top plate 2 of a hollow body 1 and then the inner cylinder 9a of a damper 9 is rigidly secured to the bracket. As the outer sleeve 9b of the damper 9 is rigidly secured to the flap door 18 by way of a slide rail assembly 19, the flap door 18 is turned open as the outer sleeve 9a of the damper 9 is rotated until a roller pin 11 slidably fitted to the bracket 6 and urged forward by a spring 16 comes into engagement with an oblong notch 10 arranged on the outer peripheral surface of the outer sleeve 9b of the damper 9, when the flap door 18 is in the horizontal open position and locked there. Each of a pair of curved slots 15, 15 of the bracket 6 for slidably holding the roller pin 11 extends obliquely from an upper front portion down to a lower rear portion of the lateral plates with a given radius of curvature so that the roller pin 11 may gyrates as it is guided by the curved slots.
REFERENCES:
patent: 2515071 (1950-07-01), Battersby
patent: 4995143 (1991-02-01), Demura et al.
Gurley Donald M.
Howell Daniel W.
Sugatsune Industrial Co. Ltd.
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