Door handle attachment fixture
First Claim
1. A door handle assembly for attachment to an escutcheon, comprising:
- a door handle having an operator portion and a hub for insertion through an aperture in said escutcheon, said hub being further defined by a threaded base and a rim protruding from said base, said rim being interrupted by a plurality of axial slots;
a wear washer sized for insertion over said hub;
a polygonal spindle nut internally threaded for screw-insertion onto the threaded base of said hub over said wear washer;
a spindle nut retainer defined by a recess keyed to said spindle nut to encase said spindle nut and prevent rotation, said spindle nut retainer having an aperture with a plurality of protruding locking tabs for seating within the axial slots in said hub;
a shaft retainer for securing the spindle nut retainer on the hub of said door handle.
12 Assignments
0 Petitions
Accused Products
Abstract
A door handle assembly for attachment to an escutcheon, the assembly comprising a door handle, wear washer, spindle nut, spindle nut retainer, and shaft retainer. The door handle has a hub, externally threaded for engagement with the internal threads of the spindle nut, with a central hole and axial slots engaging locking tabs of the spindle nut retainer. The wear washer is inserted over the hub between the inside surface of the escutcheon and the spindle nut. The spindle nut is adjusted on the hub until the proper fit and feel is achieved. The spindle nut retainer is placed over the spindle nut to lock it in position, and a shaft retainer is placed over the spindle nut retainer to secure it. The spindle nut provides more contact surface area with the underlying wear washer, reducing cyclic wear, increasing product life, reliability and security.
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Citations
20 Claims
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1. A door handle assembly for attachment to an escutcheon, comprising:
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a door handle having an operator portion and a hub for insertion through an aperture in said escutcheon, said hub being further defined by a threaded base and a rim protruding from said base, said rim being interrupted by a plurality of axial slots; a wear washer sized for insertion over said hub; a polygonal spindle nut internally threaded for screw-insertion onto the threaded base of said hub over said wear washer; a spindle nut retainer defined by a recess keyed to said spindle nut to encase said spindle nut and prevent rotation, said spindle nut retainer having an aperture with a plurality of protruding locking tabs for seating within the axial slots in said hub; a shaft retainer for securing the spindle nut retainer on the hub of said door handle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of attaching a door handle to an escutcheon to obtain the correct fit and feel, comprising the steps of:
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providing a door handle having an operator portion and a hub for insertion through an aperture in said escutcheon, said hub being further defined by a threaded base and a rim protruding from said base, said rim being interrupted by a plurality of axial slots; positioning the hub through an aperture in said escutcheon; placing a wear washer sized for insertion over said hub onto said hub and adjacent to said escutcheon; engaging a polygonal spindle nut internally threaded for screw-insertion onto the threaded base of said hub over said wear washer until the desired fit and feel is achieved; and placing a spindle nut retainer defined by a recess keyed to said spindle nut and by an aperture with a plurality of protruding locking tabs for seating within the axial slots in said hub over said spindle nut and engaging said locking tabs with the axial slots in said hub; attaching a shaft retainer to said hub to secure the spindle nut retainer thereon. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification