Joints and connections – Interfitted members – Including discrete retainer
Patent
1980-01-14
1983-06-07
Shedd, Wayne L.
Joints and connections
Interfitted members
Including discrete retainer
403393, 403363, B25G 300, F16B 710, F16D 100
Patent
active
043868711
ABSTRACT:
Bed frame members are provided for quick, snap-together, interlocking assembly for preventing relative rectilinear motion between members without loose or screwthread parts. One member has a first slot with an enlarged retaining portion and a mating member has a projection thereon for entrance into the slot. The projection carries a Belleville washer having its conical convex face disposed for engagement with the slot for compression as the projection moves thereinto and for retaining engagement with the periphery of the enlarged retaining portion of the slot when the projection has been fully inserted in the slot. A second slot in one member has a portion disposed at a substantial angle to the first slot and receives a second projection disposed on the other member. When the second projection is positioned within the angularly disposed portion of the second slot, the Belleville washer may be detentedly engaged with the retaining portion of the first slot by relative rotary motion of the two members which are then locked from rectilinear motion relative to one another, and may be disengaged only by relative rotary movement to detentably disengage the retaining member from the retaining portion and from the first slot, after which rectilinear motions will disengage the second projection from the second slot. Instead of the washer, an oversized cylindrical resilient bushing may be used for deformation out-of-round when passing into the slot and detented engagement when the projection is fully inserted in the slot.
REFERENCES:
patent: 4225265 (1980-09-01), Hooker et al.
Bishop Thomas R.
Hooker Richard B.
Hickory Springs Manufacturing Company
Shedd Wayne L.
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