US20070051286A1 - Locking device in shelf stands - Google Patents

Locking device in shelf stands Download PDF

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Publication number
US20070051286A1
US20070051286A1 US11/470,801 US47080106A US2007051286A1 US 20070051286 A1 US20070051286 A1 US 20070051286A1 US 47080106 A US47080106 A US 47080106A US 2007051286 A1 US2007051286 A1 US 2007051286A1
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US
United States
Prior art keywords
tray
locking
hook
trays
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/470,801
Inventor
Magnus Lingvall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sintek International AB
Original Assignee
Sintek International AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sintek International AB filed Critical Sintek International AB
Assigned to SINTEK INTERNATIONAL AB reassignment SINTEK INTERNATIONAL AB ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LINGVALL, MAGNUS
Publication of US20070051286A1 publication Critical patent/US20070051286A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B96/00—Details of cabinets, racks or shelf units not covered by a single one of groups A47B43/00 - A47B95/00; General details of furniture
    • A47B96/02—Shelves
    • A47B96/025—Shelves with moving elements, e.g. movable extensions or link elements
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
    • A47F5/0018—Display racks with shelves or receptables
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
    • A47F5/0081—Show stands or display racks with movable parts
    • A47F5/0093—Show stands or display racks with movable parts movable in a substantially horizontal direction
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
    • A47F5/04—Stands with a central pillar, e.g. tree type
    • A47F5/05—Stands with a central pillar, e.g. tree type with separate containers rotatable around the pillar

Definitions

  • the present invention relates to a device in shelf stands with several shelves with sloping storage trays or shelves which are extendable on a holder arm in order to facilitate replenishing and removing goods stored in the trays, whereby the trays are secured in the retracted position by means of a locking device which is operated from the front side of the trays.
  • Such a shelf stand is disclosed in the Swedish Patent No. 449293, wherein several circlesector-shaped, extendable shelves or trays are carried on arms extending from a central column so that the trays form circular shelf arranged to slope slightly downwards.
  • the trays are provided with locking means locking them in retracted and extended position respectively.
  • the distance between the shelves does not appreciably exceed the height of the goods which shall be stored on the shelves so that the total height of the shelf stand is as small as possible.
  • a problem is to accomplish a locking device which does not intrude on the distance between the shelvs but still enables operating the locking device from the front side of the trays.
  • the object of the invention is to accomplish a locking device which solves said problem and this object is achieved by a locking device which according to the invention obtains the characteristic features defined in the following claims.
  • FIG. 1 shows an example of a shelf stand of known art in which a locking device according to the invention may be used.
  • FIG. 2 shows a plan view of a shelf of the stand shown in FIG. 1 .
  • FIG. 3 shows a perspective, cross section through the central part of an extendable tray of the stand, the tray being provided with a locking device according to the invention.
  • FIG. 4 shows on a larger scale a side view of the locking device shown in FIG. 3 and in activated state.
  • FIG. 5 shows on a larger scale a cross section along the line V-V in FIG. 4 .
  • FIG. 6 shows a perspective, cross section like FIG. 3 through the central part of an extendable tray with another kind of locking device according to the invention.
  • FIG. 7 shows on a larger scale a perspective, side view of the locking device in FIG. 6 .
  • FIG. 9 shows on a larger scale a cross section along the line VIII-VIII in FIG. 7 .
  • the shelf stand shown in FIG. 1 comprises a central column 1 which is supported by a base or foot 2 .
  • the central column 1 carries several one above the other situated shelves 3 which are individually rotatable round the column 1 .
  • Every shelf consists of several essentially circlesector-shaped shelf sections or trays 4 extendable on arms 5 extending from a holder 6 rotatably arranged on the central column 1 .
  • the trays are provided with a sleeve-like part 7 which is telescopically placed over the corresponding arm 5 and carried on a support wheel 8 ( FIG. 4 ) so that the tray 4 may be moved between an entirely retracted and an extended position.
  • the arms 5 are sloping downwards so that the goods on the shelf glide down against the front side without the necessity to extend the tray. If that does not happen or goods are being refilled on the shelf it is necessary to he able to extend the tray, see FIG. 2 in which a tray 4 is shown extended.
  • the extension of the trays 4 in the stand is limited in a way known per se e.g. by a stop screw arranged on the arms 5 which screw moves in a slit in the sleeve 7 of the tray 4 (not shown).
  • an elongated leaf-shaped locking arm or hook 9 is provided which is shown in FIG. 3-5 and which extends in a channel 10 formed on the upper side of the tray 4 which channel is connected to the sleeve 7 and is formed by an inverted U-shaped sheet 11 which is fastened such as welded to the upper face of the tray's 4 bottom essentially centrally in the tray.
  • the channel 10 is just so much wider than the thickness of the securing hook 9 that this with little play to the sides of the channel 10 can move freely in the channel, while a greater play vertically allows the locking hook 9 to be brought in and out of engagement with a locking plate 12 on the front side of the tray 4 .
  • the locking hook 9 is at its inner end carried on a pivot 13 fastened to the inner end of the arm 5 so that the locking hook can swing upwardly when the outer hook-shaped part of the locking hook 9 catch hold over the plate 12 and locks the tray 4 in retracted position.
  • the outer end of the locking hook 9 is to this end rounded so that the locking hook 9 is lifted when it strikes the sheet 12 and by gravity falls down with a notch 14 over the plate 12 .
  • a securing hook 15 which with an upturned part 15 a is carried on a pivot 13 a on the arm 5 corresponding to the pivot 13 in FIG. 4 , is arranged flat against the underneath side of the tray 4 in a channel 16 which is formed by a U-shaped plate 17 fastened such as welded to said underneath side here also essentially centrally in the tray.
  • a U-shaped plate 17 fastened such as welded to said underneath side here also essentially centrally in the tray.
  • the tray 4 is thus locked in the retracted position by a lockbolt 20 fastened at the front side of the tray which by means of a turned part 18 engages a notch 19 in the hook 15 when the tray is retracted.
  • the lockbolt 20 is made of a resilient material and is biased against the locking position shown but can be removed from engagement with the notch 19 of the hook 15 by an operating arm 21 when the tray 4 shall be extended.
  • the locking hook 9 When the trays 4 shall be extended e.g. for replenishing goods the locking hook 9 is lifted from engagement with the plate 12 , see FIG. 4 , or the lockbolt 20 is brought from engagement with the notch 19 , see FIG. 7 , so that the tray is released When the trays 4 again are retracted the locking hook 9 and 15 respectively comes into engagement with the locking plate 12 and the lockbolt 20 respectively so that th trays are locked in their normal application positions.
  • the locking devices By the locking devices being situated at the front edge of the trays the function will be simple and safe.

Abstract

A device in shelf stands with several shelves 3 with sloping storage trays 4 which are extendable on a holder arm 5 in order to facilitate replenishing and removing goods stored in the trays. The trays 4 secured in the retracted position by means of a locking device which is operated from the front side of the trays.
The locking device comprises a leaf-shaped locking hook 9, 15 which when the tray is extended moves in a channel 10, 16 arranged in the upper or under side of the tray.
At the arid facing the back side of the tray the locking hook is connected to a pivot 13, 13 a in the holder 5 and at the other end, when the tray 4 is retracted to its position of application extends from the channel 10, 16 with a hook-shaped part 14, 19 which is arranged to cooperate with a locking plate 12, 18 on the front edge of the tray which engages the hook-shaped part 14, 19 of the locking hook 9, 15.

Description

    CROSS REFERENCE TO RELATED APPLICATION
  • This application claims priority to Swedish Patent Application No. 0501976-5, filed on Sep. 7, 2006, the entire disclosure of which is hereby incorporated by reference in its entirety herein.
    • DESCRIPTION
  • The present invention relates to a device in shelf stands with several shelves with sloping storage trays or shelves which are extendable on a holder arm in order to facilitate replenishing and removing goods stored in the trays, whereby the trays are secured in the retracted position by means of a locking device which is operated from the front side of the trays.
  • Such a shelf stand is disclosed in the Swedish Patent No. 449293, wherein several circlesector-shaped, extendable shelves or trays are carried on arms extending from a central column so that the trays form circular shelf arranged to slope slightly downwards. The trays are provided with locking means locking them in retracted and extended position respectively.
  • Thereby it is desired that the distance between the shelves does not appreciably exceed the height of the goods which shall be stored on the shelves so that the total height of the shelf stand is as small as possible. A problem is to accomplish a locking device which does not intrude on the distance between the shelvs but still enables operating the locking device from the front side of the trays.
  • The object of the invention is to accomplish a locking device which solves said problem and this object is achieved by a locking device which according to the invention obtains the characteristic features defined in the following claims.
  • The invention will be disclosed in greater detail with reference to embodiments illustrated in the drawings.
  • FIG. 1 shows an example of a shelf stand of known art in which a locking device according to the invention may be used.
  • FIG. 2 shows a plan view of a shelf of the stand shown in FIG. 1.
  • FIG. 3 shows a perspective, cross section through the central part of an extendable tray of the stand, the tray being provided with a locking device according to the invention.
  • FIG. 4 shows on a larger scale a side view of the locking device shown in FIG. 3 and in activated state.
  • FIG. 5 shows on a larger scale a cross section along the line V-V in FIG. 4.
  • FIG. 6 shows a perspective, cross section like FIG. 3 through the central part of an extendable tray with another kind of locking device according to the invention.
  • FIG. 7 shows on a larger scale a perspective, side view of the locking device in FIG. 6.
  • FIG. 9 shows on a larger scale a cross section along the line VIII-VIII in FIG. 7.
  • The shelf stand shown in FIG. 1 comprises a central column 1 which is supported by a base or foot 2. The central column 1 carries several one above the other situated shelves 3 which are individually rotatable round the column 1.
  • Every shelf consists of several essentially circlesector-shaped shelf sections or trays 4 extendable on arms 5 extending from a holder 6 rotatably arranged on the central column 1. The trays are provided with a sleeve-like part 7 which is telescopically placed over the corresponding arm 5 and carried on a support wheel 8 (FIG. 4) so that the tray 4 may be moved between an entirely retracted and an extended position. The arms 5 are sloping downwards so that the goods on the shelf glide down against the front side without the necessity to extend the tray. If that does not happen or goods are being refilled on the shelf it is necessary to he able to extend the tray, see FIG. 2 in which a tray 4 is shown extended. The extension of the trays 4 in the stand is limited in a way known per se e.g. by a stop screw arranged on the arms 5 which screw moves in a slit in the sleeve 7 of the tray 4 (not shown).
  • Since the trays are sloping a locking device easily operated from the outer edge of the tray must in the retracted position secure the trays. Known securing means have been arranged at the back edge of the tray facing the holder 6 and this securing means has been operated by means of an uncovered arm arranged below the tray 4 which arm has an effect on the space between the trays.
  • Instead, according to this invention, an elongated leaf-shaped locking arm or hook 9 is provided which is shown in FIG. 3-5 and which extends in a channel 10 formed on the upper side of the tray 4 which channel is connected to the sleeve 7 and is formed by an inverted U-shaped sheet 11 which is fastened such as welded to the upper face of the tray's 4 bottom essentially centrally in the tray. The channel 10 is just so much wider than the thickness of the securing hook 9 that this with little play to the sides of the channel 10 can move freely in the channel, while a greater play vertically allows the locking hook 9 to be brought in and out of engagement with a locking plate 12 on the front side of the tray 4. To this end the locking hook 9 is at its inner end carried on a pivot 13 fastened to the inner end of the arm 5 so that the locking hook can swing upwardly when the outer hook-shaped part of the locking hook 9 catch hold over the plate 12 and locks the tray 4 in retracted position. The outer end of the locking hook 9 is to this end rounded so that the locking hook 9 is lifted when it strikes the sheet 12 and by gravity falls down with a notch 14 over the plate 12.
  • In the embodiment according to FIG. 6-8 a securing hook 15, which with an upturned part 15 a is carried on a pivot 13 a on the arm 5 corresponding to the pivot 13 in FIG. 4, is arranged flat against the underneath side of the tray 4 in a channel 16 which is formed by a U-shaped plate 17 fastened such as welded to said underneath side here also essentially centrally in the tray. In this case only a small play exists between the securing hook 15 and the sides of the channel 16 since the hook 15 shall only be freely moveable in the longitudinal direction of the channel 16 when the tray 4 is extended. The tray 4 is thus locked in the retracted position by a lockbolt 20 fastened at the front side of the tray which by means of a turned part 18 engages a notch 19 in the hook 15 when the tray is retracted. The lockbolt 20 is made of a resilient material and is biased against the locking position shown but can be removed from engagement with the notch 19 of the hook 15 by an operating arm 21 when the tray 4 shall be extended.
  • It is obvious from the above that the embodiment with a leaf- shaped locking hook 9, 15 which is kept in a. narrow channel 10, 16 above or under the tray 4 does not build upon the height of the tray but the distance between the shelves 3 may be adapted entirely to the height of the goods which is to be stored on the shelves.
  • When the trays 4 shall be extended e.g. for replenishing goods the locking hook 9 is lifted from engagement with the plate 12, see FIG. 4, or the lockbolt 20 is brought from engagement with the notch 19, see FIG. 7, so that the tray is released When the trays 4 again are retracted the locking hook 9 and 15 respectively comes into engagement with the locking plate 12 and the lockbolt 20 respectively so that th trays are locked in their normal application positions. By the locking devices being situated at the front edge of the trays the function will be simple and safe.
  • It is obvious that the invention is not limited to the disclosed embodiments but can be altered in order to adapt the locking device to shelf stands and trays other than those shown.

Claims (5)

1. A device in shelf stands with several shelves with sloping storage trays which are extendable on a holder arm in order to facilitate replenishing and removing goods stored in the trays, whereby the trays are secured in the retracted position by means of a locking device which is operated from the front side of the trays, characterized in that the locking device comprises a leaf-shaped locking hook which when the tray is extended moves in a channel arranged in the upper or under side of the tray and which at the end facing the back side of the tray is connected to a pivot in the holder arm and at the other end, when the tray is retracted, extends from the channel with hook-shaped part which is arranged to cooperate with a locking plate on the front edge of the tray and which is arranged to engage with force in the hook-shaped part of the locking hook.
2. A device according to claim 1, characterized in that the locking hook extends in a channel formed by a U-shaped sheet fastened to the upper or under side of the tray.
3. A device according to claim 2, characterized in that the locking hook is rotatably connected to the pivot and that the U-shaped channel has such height that th locking hook can be lifted over and engage a locking plate on the forward edge of the tray.
4. A device according to claim 2, characterized in that the locking hook is arranged with little play in the channel and arranged to cooperate with a locking plate rotatably arranged on the forward edge of the tray which plate engages the hook-shaped part of the locking hook when the tray is retracted.
5. A device according to claims 1, 2, 3, or 4, characterized in that the engagement between the locking hook and the locking plate is by means of gravity or spring force.
US11/470,801 2005-09-07 2006-09-07 Locking device in shelf stands Abandoned US20070051286A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0501976-5 2005-09-07
SE0501976A SE529351C2 (en) 2005-09-07 2005-09-07 Locking device at shelf rack

Publications (1)

Publication Number Publication Date
US20070051286A1 true US20070051286A1 (en) 2007-03-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
US11/470,801 Abandoned US20070051286A1 (en) 2005-09-07 2006-09-07 Locking device in shelf stands

Country Status (7)

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US (1) US20070051286A1 (en)
EP (1) EP1762160A1 (en)
JP (1) JP2007069004A (en)
CN (1) CN1927095A (en)
AU (1) AU2006203607A1 (en)
NO (1) NO325579B1 (en)
SE (1) SE529351C2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100193456A1 (en) * 2009-02-02 2010-08-05 Polizzi Joseph A Pivoting Shelf Assembly
WO2010081051A3 (en) * 2009-01-08 2010-10-21 Redi Reach Llc Pivoting shelf assembly
WO2011109879A1 (en) * 2010-03-09 2011-09-15 Jobem Donada Nail polish display and organiser trolley
US20140263124A1 (en) * 2013-03-18 2014-09-18 Helen Of Troy Limited Standing shower caddy

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3242885A (en) * 1964-07-28 1966-03-29 Whirlpool Co Shelf structure
US3311072A (en) * 1966-04-01 1967-03-28 Gen Electric Cantilever slide-out shelf
US4198913A (en) * 1978-05-26 1980-04-22 Haworth Mfg., Inc. Component locking device
US4602570A (en) * 1982-06-01 1986-07-29 Frito-Lay, Inc. Extendable shelf for a display rack
US4660477A (en) * 1984-08-17 1987-04-28 Haworth, Inc. Slidable work surface
US4934645A (en) * 1989-03-20 1990-06-19 Rtc Industries, Inc. Shelving assembly
US5673801A (en) * 1996-03-25 1997-10-07 Markson Rosenthal & Company Shelf organizer display
US5735589A (en) * 1994-04-29 1998-04-07 Donnelly Technology, Inc. Sliding refrigerator shelf assembly
US5970887A (en) * 1997-11-13 1999-10-26 Rtc Industries, Inc. Anti-racking pull-out shelf
US6021908A (en) * 1997-07-07 2000-02-08 Tusco Limited Partnership Extensible display shelf
US6164462A (en) * 1999-09-28 2000-12-26 L&P Property Management Company Pull-out gravity feed shelf
US6345579B1 (en) * 2000-07-26 2002-02-12 Engineered Data Products, Inc. Removable work surface defining device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB387531A (en) * 1932-03-24 1933-02-09 Harris & Sheldon Ltd Improvements relating to display fittings for use in shops and the like
SE449293B (en) 1985-08-01 1987-04-27 Sintek Ab HYLLSTELL
US5306077A (en) * 1991-10-04 1994-04-26 Megaspace Pty Ltd. Drawer unit for displaying and dispensing of merchandise
JP2003250674A (en) * 2002-02-28 2003-09-09 Sanden Corp Shelf device of show case
JP2003265280A (en) * 2002-03-18 2003-09-24 Sanden Corp Shelving device for showcase

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3242885A (en) * 1964-07-28 1966-03-29 Whirlpool Co Shelf structure
US3311072A (en) * 1966-04-01 1967-03-28 Gen Electric Cantilever slide-out shelf
US4198913A (en) * 1978-05-26 1980-04-22 Haworth Mfg., Inc. Component locking device
US4602570A (en) * 1982-06-01 1986-07-29 Frito-Lay, Inc. Extendable shelf for a display rack
US4660477A (en) * 1984-08-17 1987-04-28 Haworth, Inc. Slidable work surface
US4934645A (en) * 1989-03-20 1990-06-19 Rtc Industries, Inc. Shelving assembly
US5735589A (en) * 1994-04-29 1998-04-07 Donnelly Technology, Inc. Sliding refrigerator shelf assembly
US5673801A (en) * 1996-03-25 1997-10-07 Markson Rosenthal & Company Shelf organizer display
US6021908A (en) * 1997-07-07 2000-02-08 Tusco Limited Partnership Extensible display shelf
US5970887A (en) * 1997-11-13 1999-10-26 Rtc Industries, Inc. Anti-racking pull-out shelf
US6164462A (en) * 1999-09-28 2000-12-26 L&P Property Management Company Pull-out gravity feed shelf
US6345579B1 (en) * 2000-07-26 2002-02-12 Engineered Data Products, Inc. Removable work surface defining device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010081051A3 (en) * 2009-01-08 2010-10-21 Redi Reach Llc Pivoting shelf assembly
US20100193456A1 (en) * 2009-02-02 2010-08-05 Polizzi Joseph A Pivoting Shelf Assembly
KR101216347B1 (en) 2009-02-02 2012-12-27 레디 리치 엘엘시 Pivoting shelf assembly
US8517190B2 (en) 2009-02-02 2013-08-27 Joseph A. Polizzi Pivoting shelf assembly
WO2011109879A1 (en) * 2010-03-09 2011-09-15 Jobem Donada Nail polish display and organiser trolley
US20140263124A1 (en) * 2013-03-18 2014-09-18 Helen Of Troy Limited Standing shower caddy

Also Published As

Publication number Publication date
SE0501976L (en) 2007-03-08
AU2006203607A1 (en) 2007-03-22
CN1927095A (en) 2007-03-14
NO20063967L (en) 2007-03-08
SE529351C2 (en) 2007-07-17
NO325579B1 (en) 2008-06-23
EP1762160A1 (en) 2007-03-14
JP2007069004A (en) 2007-03-22

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AS Assignment

Owner name: SINTEK INTERNATIONAL AB, SWEDEN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LINGVALL, MAGNUS;REEL/FRAME:018217/0325

Effective date: 20060817

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION