Platform lifting and lowering mechanism for weighing apparatus

Details Platform lifting and lowering mechanism for weighing apparatus Platform lifting and lowering mechanism for weighing apparatus

1994-04-15

1997-06-10

Gellner, Michael L.

Weighing scales

With weigher loading or unloading means

177134, 177146, 298 17B, G01G 1900

Patent

active

056378378

ABSTRACT:
A weighing apparatus with pneumatic cylinder and piston assemblies for lifting a hinged platform includes a self-deploying mechanism to secure the platform in the raised position, a mechanism for remotely repositioning the self-deploying securing mechanism to enable lowering of the platform, and a control mechanism to remotely activate the lifting and securing of the platform and the unsecuring and lowering of the platform and to prevent unauthorized operation. The self-deploying securing mechanism includes an arm pivotally connected to the underside of the platform and arranged so that the other, free end of the arm pivots to a position to secure the platform when the platform is raised to a pre-determined height. The repositioning mechanism includes a pneumatic cylinder and piston assembly mounted perpendicular to the cylinder and piston assembly used to lift the platform. The piston of the repositioning cylinder and piston assembly is aligned to contact and reposition the free end of the platform securing arm to allow the platform to be lowered. The control mechanism includes a pneumatic controller equipped with a switch operated by a removable key.

REFERENCES:
patent: 4039093 (1977-08-01), Schmitz, Jr. et al.
Masstron Scale, Inc. drawing MC-30315-D (Apr. 18, 1984) Toledo Scale drawing TC-302085-A (Aug. 31, 1989).

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