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US 6,719,386 B2Granted
Precision drawer slide with cantilevered members
AssigneeKnape & Vogt Manufacturing Company
InventorKeith A. Hoffman
Life of this patent
Estimating the term…
Abstract
A precision drawer slide, employing two or more members, wherein, one member is fastened to a cabinet wall, or carcass, and the other member is fastened to a drawer. The member fastened to the cabinet wall comprises a profile that has a “hat” section appearance that generates a surprising amount of rigidity when installed in desk and file cabinets of various kinds. The drawer and cabinet member are also strategically foreshortened and rear-shortened respectively. Other variations or embodiments include the usage of a novel quick disconnect system for the easy installation and removal of a drawer from the drawer slide assembly, as well as the inclusion of a roller bearing component for generation of a progression movement in the drawer slide itself.
Claims71
A precision drawer slide for mounting a drawer in a carcass comprising:
- at least two elongated members with a first member including an attachment mountable side mountable onto one of an interior of the carcass and the drawer and a second member mountable onto the other one of the interior of the carcass and the drawer, said first member further including a hat-section profile, said hat-section profile including an upper surface, a lower surface, aid a wall interconnecting said upper and lower surfaces, said wall being positioned way from said attachment mountable side;
- at least a first rotatable bearing interfitted between said members and in contact with said upper surface;
- and
- at least a second rotatable bearing interfitted between said members and in contact with said lower surface.
1 more element
A precision drawer slide for mounting a drawer in a carcass comprising:
- at least two elongated members with a first member mountable onto one of an interior of the carcass and the drawer and a second member mountable onto the other one of the interior of the carcass and the drawer, said first member being comprised of a hat-section profile, said hat-section profile including an upper surface and a lower surface, said first member including at least one flange portion projecting upwardly from said hat-section profile and where said flange portion is in planar relation to a sidewall of the carcass;
- at least a first rotatable bearing interfitted between said members and in contact with said upper surface;
- and
- at least a second rotatable bearing interfitted between said members and in contact with said lower surface.
1 more element
A precision drawer slide for mounting a drawer in a carcass comprising:
- at least two elongated members with a first member mountable onto an interior of the carcass and a second member mountable to the drawer;
- bearing means for interfitted connection between said members;
- and
- said second member further including a foreshortened length where such foreshortened length is limited to a total length of said second member no less than the distance from the rear of said second member to the front of said bearing means when said bearing means is located at its rearmost stopping point.
1 more element
A precision drawer slide for mounting a drawer in a carcass comprising:
- at least two elongated members with a first member mountable onto an interior of the carcass and a second member mountable to the drawer, said first member having a hat section profile;
- bearing means for interfitted connection between said members;
- and
- said second member further including a foreshortened length where such foreshortening is limited to a total length no less than the distance from a rear of said second member to a front of said bearing means when said bearing means is located at a rearmost stopping point.
1 more element
A precision drawer slide for mounting a drawer in a carcass comprising:
- at least two elongated members with a first member mountable onto an interior of the carcass and a second member mountable to the drawer;
- bearing means for interfitted connection between said members;
- said first member including a rear shortened length where such rear shortening is limited to a total length of said first member no less than the distance from a front of said first member to a rearmost stopping point of said bearing means;
- said second member including a foreshortened length where such foreshortening is limited to a total length of said second member no less than the distance from a rear of said second member to a front of said bearing means when located at said rearmost stopping point;
- and
- said first member further including a hat-section profile.
3 more elements
A precision drawer slide for mounting a drawer in a carcass comprising:
- at least two elongated members with a first member mountable onto an interior of the carcass and a second member mountable to the drawer;
- bearing means for interfitted connection between said members, said bearing means movable in linear direction when the drawer attached to said second member is pulled out of the carcass;
- and
- said first member including a rear-shortened length where such rear-shortening is limited to a total length of said first member no less than the distance from the front of said first member to a rearmost stopping point of said bearing means.
1 more element
A precision drawer slide for mounting in a carcass comprising:
- at least two elongated members with a first member mountable onto an interior of the carcass and a second member mountable to a drawer, said first member including a hat-section profile;
- bearing means for interfitted connection between said members;
- and
- said second member further including a quick disconnect means mountable onto a sidewall of the drawer and including a front quick disconnect part and a rear disconnect part and where said front quick disconnect part includes a trigger for releasable engagement with said second member and said rear quick disconnect part includes a tab for releasable engagement with said second member.
1 more element
A precision drawer slide for mounting in a carcass comprising:
- at least three elongated members that each have at least one bearing surface, said at least three elongated members including a first member mountable onto one of an interior of the carcass and a drawer, a second member mountable onto the other one of the interior of the carcass and the drawer, and a third member for telescoping interconnection between said first member and said second member, said third member having all of its bearing surfaces nested within said second member;
- bearing means for interfitted connection between said members, said bearing means contacting said bearing surfaces of said elongated members;
- and
- progression means for causing said third member to travel linearly at a substantially constant fraction of the speed of said second member as said drawer slide is moved from a closed position to an open position and vice versa.
1 more element
A precision drawer slide for mounting in a carcass comprising:
- at least three elongated members with a first member mountable onto one of an interior of the carcass and a drawer, a second member mountable onto the other one of the interior of the carcass and the drawer, and a third member for telescoping interconnection between said first member and said second member, said first member including an attachment mountable side and a hat-section profile, said hat-section profile including an upper flange, a lower flange, and a wall interconnecting said upper and lower flanges, said wall being positioned away from said attachment mountable side;
- bearing means for interfitted connection between said members;
- and
- progression means for generating progressive advancement and retraction as said drawer slide is moved from a closed position to an open position and vice versa.
1 more element
A precision drawer slide for mounting a drawer in a carcass comprising:
- at least two elongated members with a first member mountable onto an interior of the carcass and a second member mountable to the drawer;
- bearing means for interfitted connection between said members;
- said first member further including a rear shortened length where such rear shortening is limited to a total length of said first member no less than a distance from the front of said first member to a rearmost stopping point of said bearing means;
- and
- said second member further including a fore-shortened length where such fore-shortening is limited to a total length of said second member no less than the distance from a rear of said second member to a front of said bearing means when located at its rearmost stopping point.
2 more elements
A precision drawer slide for mounting a drawer in a carcass comprising:
- at least three elongated members with a first member mountable onto an interior of the carcass and a second member mountable to the drawer and a third member that telescopically interconnects said first member and said second member;
- bearing means for interfitted connection between said members;
- progression means for causing said third member to travel linearly at a substantially constant fraction of the speed of said second member as the drawer slide is moved from a closed position to an open position and vice versa;
- and
- stay closed means for retaining the drawer slide in a closed position where said stay closed means includes at least one detent disposed on a web portion of either one of said first member or said second member and where said detent is in such alignment with said roller bearing as to come in contact with same, and where such contact provides reversible bias to the advancement of said second member and tending to retain said second member in the closed position when the drawer slide is fully closed.
2 more elements
A precision drawer slide for mounting a drawer in a carcass comprising:
- at least thee elongated members with a first member mountable onto an interior of the carcass and a second member mountable to the drawer and a third member that telescopically interconnects said first member and said second member, the first member including a hat-section profile;
- bearing means for interfitted connection between said members;
- progression means for generating progressive advancement and retraction of said second member and said third member as the drawer slide is moved from a closed position to an open position and vice versa;
- and
- stay closed means for retaining the drawer slide in a closed position where said stay closed means includes at least one detent disposed on a web portion of either one of said first member or said second member and where said detent is in such alignment with said roller bearing as to come in contact with same, and where such contact provides reversible bias to the advancement of said second member and tending to retain said second member in the closed position when the drawer slide is fully closed.
2 more elements
A precision drawer slide for mounting a drawer in a carcass comprising:
- a first elongated member mountable onto one of an interior of the carcass and the drawer;
- a second elongated member mountable onto the other one of the interior of the carcass and the drawer;
- a third elongated member positioned between said first and second elongated members;
- said first elongated member including a hat-section profile, said hat-section profile including an upper surface and a lower surface;
- at least a first rotatable bearing interfitted between said first and second elongated members and in contact with said upper surface;
- at least a second rotatable bearing interfitted between said first and second elongated members and in contact with said lower surface;
- and
- a progression roller mounted between said first and second members, said progression roller adapted to cause said third elongated member to travel linearly at a substantially constant fraction of the speed of said second elongated member.
5 more elements
A precision drawer slide for mounting in a carcass comprising:
- at least three elongated members with a first member mountable onto an interior of the carcass, a second member mountable to a drawer, and a third member for telescoping interconnection between said first member and said second member;
- a plurality of bearings interfitted between said members;
- a substantially non-compressible roller positioned between, and in contact with, said first and second members, said roller adapted to cause said third member to travel linearly at a substantially constant fraction of the speed of said second member as said drawer slide is moved from a closed position to an open position and vice versa, at least one of said first and second members being constructed so as to flex when said roller is positioned between said first and second members to thereby exert a force against said roller as said roller rolls.
A precision drawer slide for mounting a drawer in a carcass comprising:
- at least two elongated members that each have at least one bearing surface, said at least two elongated members including a first member mountable onto one of an interior of the carcass and the drawer, and a second member mountable onto the other one of the interior of the carcass and the drawer, said first member having all of its bearing surfaces nested within said second member;
- a plurality of bearings interfitted between said members and in contact with said bearing surfaces of said first and second members, said bearings movable in a linear direction when the drawer attached to the drawer slide is pulled out of the carcass;
- and
- a vertical flange integrally formed with said first member that extends upwardly from said first member further than an uppermost point on said second member, said vertical flange positioned to engage a sidewall of either the drawer or the carcass.
1 more element
Dependencies are inferred from the claim text.