Drawer slide assembly
DCFirst Claim
Patent Images
1. A drawer slide assembly comprising:
- an elongated outer rail;
an elongated intermediate rail having an outer end;
an elongated inner rail having inner and outer ends;
a rail extension stop lever means between said inner rail and said intermediate rail for stopping extension of said inner rail relative to said intermediate rail;
said stop lever means comprising a polymeric lever element having one end attached to said inner rail, and a second trigger end extending along said inner rail spaced therefrom and resiliently shiftable toward said inner rail;
transversely oriented stop surfaces on said element; and
a center stop on said intermediate rail outer end, said center stop having cooperative stop surfaces complementary to said stop lever element stop surfaces, for making a binding stop therewith upon extension of said slide assembly.
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Abstract
A drawer slide stop lever mechanism comprises a stop lever that is fixed to an inner channel member between the ends of the channel, and at one end of the stop lever, with the other end being free to resiliently flex from an at rest position to an actuated position. This stop lever includes a lever trigger, and a middle portion having a block with stop faces. Corresponding to the stop faces are faces found on opposing stop means of the other intermediate rail.
65 Citations
17 Claims
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1. A drawer slide assembly comprising:
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an elongated outer rail; an elongated intermediate rail having an outer end; an elongated inner rail having inner and outer ends; a rail extension stop lever means between said inner rail and said intermediate rail for stopping extension of said inner rail relative to said intermediate rail; said stop lever means comprising a polymeric lever element having one end attached to said inner rail, and a second trigger end extending along said inner rail spaced therefrom and resiliently shiftable toward said inner rail; transversely oriented stop surfaces on said element; and a center stop on said intermediate rail outer end, said center stop having cooperative stop surfaces complementary to said stop lever element stop surfaces, for making a binding stop therewith upon extension of said slide assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A drawer slide assembly comprising:
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an elongated outer rail having ball races and having an inner end and an outer end; an elongated intermediate rail having ball races, an inner end and an outer end; an inner rail having ball races, an inner end and an outer end; first ball bearings in races between said outer rail and said intermediate rail; second ball bearings in races between said intermediate rail and said inner rail; an outer rail stop element at said outer end of said outer rail, comprising a lubricious polymeric element snap fitted into said outer rail; said outer rail stop element extending between and into said ball races to serve as a lubricious bushing for said intermediate rail, and a retainer for said first ball bearings, as well as a stop for said intermediate rail; a center stop element at said outer end of said intermediate rail, comprising a polymeric element snap fitted into said intermediate rail, and extending into said ball races of said intermediate rail to serve as a lubricious bushing for said inner rail, and a retainer for said second ball bearings, as well as a stop for said inner rail; a stop lever means intermediate said ends of said inner rail for engaging said center stop element to serve as an extension stop for said inner rail relative to said intermediate rail; and said stop lever means comprising a polymeric element snap fitted into said inner rail. - View Dependent Claims (10, 11, 12)
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13. A drawer slide assembly comprising:
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an elongated outer rail having an inner end and an outer end; an elongated intermediate rail having an inner end and an outer end; an inner rail having an inner end and an outer end; first bearings between said outer rail and said intermediate rail; second bearings between said intermediate rail and said inner rail; an outer rail stop element at said outer end of said outer rail, comprising a polymeric element snap fitted into said outer rail; a center stop element at said outer end of said intermediate rail, comprising a polymeric element snap fitted into said intermediate rail; and a stop lever means intermediate said ends of said inner rail for engaging said center stop element to stop extension of said inner rail relative to said intermediate rail, said stop lever means comprising a polymeric element snap fitted into said inner rail. - View Dependent Claims (14)
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15. A drawer slide assembly comprising:
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an elongated outer rail having ball races and having an inner end and an outer end; an elongated intermediate rail having ball races, an inner end and an outer end; an inner rail having ball races, an inner end and an outer end; first ball bearings between said outer end intermediate rails in said races; second ball bearings between said intermediate rail and said inner rail in said races; a bearing retainer retaining said second ball bearings; an outer rail stop element at said outer end of said outer rail, comprising a polymeric element; a center stop element at said outer end of said intermediate rail, comprising a polymeric element fitted into said intermediate rail, and extending into said ball races of said intermediate rail; a stop lever means intermediate said ends of said inner rail for engaging said center stop to serve as an extension stop for said inner rail relative to said intermediate rail; said center stop having a pair of stop wings extending opposite to each other, beyond said intermediate rail ball races, and axially aligned with said outer rail stops to engage said outer rail stops upon full retraction of said slide assembly. - View Dependent Claims (16, 17)
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Specification