US4501456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage rack with multiple drawer compartments and mold for making same
Assignee: Fritz Schaefer GmbH
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Filing: 1982-03-26
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Granted: 1985-02-26
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Expires: 2002-03-26
Abstract
Abstract A rack designed to accommodate several tiers of drawers has a frame spanned by one or more shelves defining a plurality of storage levels each partitioned by at least one upright divider into a plurality of compartments disposed side by side, each compartment having a wide-open front end and a rear end which may be partly obstructed by a low sill allowing an inserted drawer to be rearwardly extracted on being lifted above that sill. A profiled web in an upper zone of the front end of each compartment, projecting from above with a height slightly exceeding that of the sill, coacts with an upper rear flange of the respective drawer to prevent its forward extraction by a sliding motion through enabling such extraction by an upward tilting of the drawer; that web also lets the drawer hang out of its compartment with a slight downward tilt in a forward position. The top of the frame is concave to serve as an open ancillary receptacle. Also disclosed is a mold for making such a rack from plastic material, the mold comprising a split shell conforming to the frame and two oppositely displaceable interfitting cores defining cavities corresponding to the shelves, dividers, sills and webs.
Inventors
- 👤 Gerhard Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:41
CPC Classifications
B; B29; B29C; B29C33/00; A; A47; A47F; A47F5/00; A47F5/0018; A47F5/0025; B29C33/42
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
268 words
A storage rack comprising: a frame having a base, a pair of sidewalls and a roof defining a space of rectangular vertical outline; partition means in said frame dividing said space into a plurality of compartments; a plurality of drawers each slidably received in one of said compartments, said drawers having a height less than that of the respective compartments and being each provided with a rear wall having an upper ledge backed by an upstanding marginal ridge; and a stop member depending from the overlying roof into a front end of each compartment for engagement with a back wall of the respective drawer in a forward position of the latter while enabling an extraction thereof through said front end by a tilting motion about a free edge of said stop member, said stop member being a resilient web with a rearwardly slanting profile yielding backward to enable sliding insertion of a drawer into the respective compartment from said front end but resisting extraction of an inserted drawer through said front end by coming to rest against said ridge and said ledge, the rear end of each compartment being provided with a sill defining stop means for establishing an insertion position for the respective drawer while enabling the respective drawer to be extracted through said rear end upon being lifted above said sill, each compartment having a floor provided near the rear end thereof but forwardly of its sill with a boss of a lesser height than said sill engageable with a downward projection of an inserted drawer for preventing a forward sliding thereof from said insertion position.
Claim 2
Dependent Claim
268 words
A storage rack comprising: a frame having a base, a pair of sidewalls and a roof defining a space of rectangular vertical outline; partition means in said frame dividing said space into a plurality of compartments; a plurality of drawers each slidably received in one of said compartments, said drawers having a height less than that of the respective compartments and being each provided with a rear wall having an upper ledge backed by an upstanding marginal ridge; and a stop member depending from the overlying roof into a front end of each compartment for engagement with a back wall of the respective drawer in a forward position of the latter while enabling an extraction thereof through said front end by a tilting motion about a free edge of said stop member, said stop member being a resilient web with a rearwardly slanting profile yielding backward to enable sliding insertion of a drawer into the respective compartment from said front end but resisting extraction of an inserted drawer through said front end by coming to rest against said ridge and said ledge, the rear end of each compartment being provided with a sill defining stop means for establishing an insertion position for the respective drawer while enabling the respective drawer to be extracted through said rear end upon being lifted above said sill, each compartment having a floor provided near the rear end thereof but forwardly of its sill with a boss of a lesser height than said sill engageable with a downward projection of an inserted drawer for preventing a forward sliding thereof from said insertion position.
Claim 3
Dependent Claim
20 words
A rack as defined in claim 1 wherein said stop member extends over a height exceeding that of said sill.
Claim 4
Dependent Claim
34 words
A rack as defined in claim 1 or 2 wherein each of said ridge has lateral forward extensions bracketing an access opening of the drawer, said stop member fitting closely between said forward extensions.
Claim 5
Dependent Claim
48 words
A rack as defined in claim 3 wherein said compartments are provided with flaps hinged to said sidewalls and positioned to overhang the access openings of inserted drawers, said flaps being lockable in a closure position for preventing the extraction of the respective drawers through said front end.
Claim 6
Dependent Claim
35 words
A rack as defined in claim 1 wherein each compartment is provided slightly above a floor level thereof with a pair of oppositely extending lateral strips engageable with lateral bottom ledges of the respective drawer.
Claim 7
Dependent Claim
30 words
A rack as defined in claim 1 wherein said boss is ramp-shaped for facilitating a rearward sliding of said projection thereover upon displacement of the drawer into said insertion position.
Claim 8
Dependent Claim
18 words
A rack as defined in claim 6 wherein said sill has an aperture in line with said boss.
Claim 9
Dependent Claim
20 words
A rack as defined in claim 1 or 2 wherein said roof is trough-shaped and forms an additional storage space.
Claim 10
Dependent Claim
23 words
A rack as defined in claim 8 wherein said additional storage space is overlain by a handle spanning said sidewalls above said top.
Claim 11
Dependent Claim
33 words
A rack as defined in claim 1 or 2 wherein each of said sidewalls has a peripheral flange provided with mutually complementary upper and lower formations facilitating the stacking of several such racks.
Claim 12
Dependent Claim
25 words
A rack as defined in claim 1 or 2 wherein said sidewalls have mutually complementary edge formations preventing a relative shifting of closely juxtaposed racks.
Claim 13
Dependent Claim
18 words
A rack as defined in claim 10 wherein said flanges are further provided with openings accommodating external attachments.
Claim 14
Dependent Claim
46 words
A rack as defined in claim 1 or 2 wherein said partition means includes upright dividers between adjacent compartments extending over the full height of said compartments at said front end but rising only to the top level of the respective sills at said rear end.
Claim 15
Dependent Claim
28 words
A rack as defined in claim 1 or 2 wherein said frame, partition means, sills and stop members are part of an integrally molded body of synthetic resin.
Claim 16
Dependent Claim
213 words
A storage rack comprising: a frame having a base, a pair of sidewalls and a roof defining a space of rectangular vertical outline; partition means in said frame dividing said space into a plurality of compartments; a plurality of drawers each slidably received in one of said compartments, said drawers having a height less than that of the respective compartments; and a stop member depending from the overlying roof into a front end of each compartment for engagement with a back wall of the respective drawer in a forward position of the latter while enabling an extraction thereof through said front end by a tilting motion about a free edge of said stop member, the rear end of each compartment being provided with a sill defining stop means for establishing an insertion position for the respective drawer while enabling the respective drawer to be extracted through said rear end upon being lifted above said sill, each compartment having a floor provided near the rear end thereof but forwardly of its sill with a boss of a lesser height than said sill engageable with a downward projection of an inserted drawer for preventing a forward sliding thereof from said insertion position, said projection being receivable in a gap between said boss and said sill.
Claim 17
Dependent Claim
213 words
A storage rack comprising: a frame having a base, a pair of sidewalls and a roof defining a space of rectangular vertical outline; partition means in said frame dividing said space into a plurality of compartments; a plurality of drawers each slidably received in one of said compartments, said drawers having a height less than that of the respective compartments; and a stop member depending from the overlying roof into a front end of each compartment for engagement with a back wall of the respective drawer in a forward position of the latter while enabling an extraction thereof through said front end by a tilting motion about a free edge of said stop member, the rear end of each compartment being provided with a sill defining stop means for establishing an insertion position for the respective drawer while enabling the respective drawer to be extracted through said rear end upon being lifted above said sill, each compartment having a floor provided near the rear end thereof but forwardly of its sill with a boss of a lesser height than said sill engageable with a downward projection of an inserted drawer for preventing a forward sliding thereof from said insertion position, said projection being receivable in a gap between said boss and said sill.
Claim 18
Dependent Claim
35 words
A rack as defined in claim 15 wherein said boss is ramp-shaped for facilitating a rearward sliding of said projection thereover before dropping into said gap upon displacement of the drawer into said insertion position.
Claim 19
Dependent Claim
26 words
A rack as defined in claim 15 or 16 wherein said sill has an aperture in line with said boss and in communication with said gap.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-26 | 1988-08-27 | 1989-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-26 | 1992-08-27 | 1993-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-26 | 1996-08-27 | 1997-02-26 | $7700.00 | Window Closed / Lapsed |