Disc pack with snap on handle
AssigneeData Packaging Corporation
InventorDavid E. Butz
Life of this patent
Estimating the term…
Abstract
This invention relates in general to a disc pack cartridge and more particularly pertains to a handle for a single disc cartridge which incorporates an improved mechanism that enables unlatching of the removable bottom cover of the cartridge. An improved manner of mounting the handle on the top cover is incorporated in the assembly to facilitate assembly, simplify the handle structure and make the handle mount more secure.
Claims30
In a disc pack cartridge of the type having a top cover with a handle that can be raised from a horizontal position to a vertical position, a magnetic disc housed within the top cover, the magnetic disc being attached to a hub having a magnetizable armature plate, a removable bottom cover having magnets for latching the removable bottom cover to the top cover by the magnetic attraction between the magnets and the armature plate, a lift plate for lifting the hub away from the magnets of the removable bottom cover to unlatch the removable bottom cover, and lift arms attached to the lift plate and extending through the top cover into a chamber in the handle,
- the improvement comprising
- a yoke constantly housed in the chamber of the handle for sliding movement between an unlatch position and a carry position,
- means securing the lift arms to the yoke in a manner enabling the lift arms to pivot on the yoke,
- means urging the yoke to the unlatch position,
- a slide member in the chamber, disposed above the yoke, the slide member having dependent blocking members adapted to block sliding movement of the yoke from the unlatch position toward the carry position, the slide member being movable to a carry station where the dependent blocking members do not block the sliding movement of the yoke.
A disc pack handle and latching assembly comprising:
- a cover having a handle on its upper side that can be raised from a horizontal position to a vertical position on the cover,
- a lift plate disposed below the handle on the bottom side of the cover for carrying an armature forming part of a magnetic latching assembly for connecting the cover to a base of the pack,
- a chamber within the handle and connecting means secured to the lift plate and extending into the chamber,
- a yoke constantly confined to the chamber,
- pivot means within the chamber pivotally connecting the connecting means to the yoke,
- and control means on the handle movable between a first position wherein raising the handle does not alter the position of the lift plate with respect to the cover so that the armature remains substantially fixed with respect to the base, and a second position wherein raising the handle raises the lift plate with respect to the cover so that the armature moves with respect to the base.
A disc pack handle and latching assembly comprising
- a cover having a handle on its upper side that can be raised from a horizontal position to a vertical position on the cover,
- a lifting means disposed below the handle on the bottom side of the cover for carrying part of a latching assembly for connecting the cover to a base of the pack,
- a chamber within the handle and a connecting arm secured to the lift means and extending into the chamber,
- a yoke constantly confined to and movable in the chamber and movable with the handle,
- pivot means within the chamber pivotally connecting the connecting arm to the yoke,
- and control means in the chamber for selectively either enabling the yoke to move within the chamber when the handle is raised from the horizontal position whereby the lift means does not affect the condition of the latching assembly, or preventing the yoke from moving within the chamber when the handle is raised whereby the lift means does affect the condition of the latching assembly.
A disc pack cover assembly comprising:
- a preassembled handle having
- a chamber formed in the handle,
- a yoke constantly confined within the chamber and slidable therein,
- a recess in the yoke and a pin fixed in the recess,
- control means in the chamber in one position enabling the yoke to slide therein and a second position preventing the yoke from sliding therein,
- a slot in the handle communicating with the chamber and a slot in the yoke aligned with the slot in the handle and communicating with the recess,
- a cover with the preassembled handle disposed above it,
- a lift plate disposed below the cover for carrying an armature forming part of a magnetic latch assembly,
- a lift arm secured to the plate and extending upwardly through the cover,
- and a hook formed at the top of the arm and adapted to extend through the slots in the handle and yoke for pivotally engaging the pin in the recess to pivotally connect the arm with the yoke.
A disc pack cover assembly comprising:
- a cover,
- a well in the top of the cover for receiving the handle,
- a lift plate disposed beneath the cover,
- a pair of lift arms connected to the lift plate and extending upwardly through the cover and generally perpendicular to it into the well,
- hook means provided in the tops of the arms and facing one end of the well in the cover,
- and a preassembled handle having a generally flat configuration and shaped to fit within the recess when placed in a horizontal position,
- a chamber provided in one end of the handle corresponding to the location of the hooks, said chamber being defined by front, rear, bottom and side walls,
- a yoke constantly confined within the chamber and slidable between the front and rear walls,
- a pair of recesses in the yoke and a pivot pin in each recess,
- and slots in the front and bottom walls of the chamber and in the yoke on the side facing the front wall for enabling the handle to be slipped onto the lift arms so that the hooks engage the pivot pins whereby the handle thereafter may be raised to a vertical position on the cover while attached to the arms.
A lift plate subassembly for use in a disc pack cover assembly comprising
- a generally circular lift plate,
- a pair of cylindrical columns formed as an integral part of the lift plate and extending upwardly from the top surface thereof,
- an arm mounted in each of the columns and extending upwardly therefrom, said arms having hook means in their upper ends for securing the subassembly to the handle of the disc pack cover,
- bezels having circular openings receiving the columns and being slidably up and down on the columns,
- and springs surrounding the columns and engaging the bezels for urging the lift plate away from the bezels.
Dependencies are inferred from the claim text.