WO2001029351A2 - Verrou rotatif - Google Patents

Verrou rotatif Download PDF

Info

Publication number
WO2001029351A2
WO2001029351A2 PCT/US2000/041386 US0041386W WO0129351A2 WO 2001029351 A2 WO2001029351 A2 WO 2001029351A2 US 0041386 W US0041386 W US 0041386W WO 0129351 A2 WO0129351 A2 WO 0129351A2
Authority
WO
WIPO (PCT)
Prior art keywords
latch
pawl
rotary
rotary latch
base
Prior art date
Application number
PCT/US2000/041386
Other languages
English (en)
Other versions
WO2001029351A3 (fr
Inventor
Wilfried J. Kronemeyer
Jeffrey L. Antonucci
J. Thomas Weuthen
Original Assignee
Southco, Inc.
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 Southco, Inc. filed Critical Southco, Inc.
Priority to AU27465/01A priority Critical patent/AU2746501A/en
Publication of WO2001029351A2 publication Critical patent/WO2001029351A2/fr
Publication of WO2001029351A3 publication Critical patent/WO2001029351A3/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/02—Fastening devices with bolts moving pivotally or rotatively without latching action
    • E05C3/04—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt
    • E05C3/041—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted
    • E05C3/042—Fastening devices with bolts moving pivotally or rotatively without latching action with operating handle or equivalent member rigid with the bolt rotating about an axis perpendicular to the surface on which the fastener is mounted the handle being at one side, the bolt at the other side or inside the wing

Definitions

  • the present invention relates generally to latching devices and more particularly to latches which are operable through rotation of a pawl to selectively release and secure a first member, such as a door or panel, in a closed position relative to a second member , such as a frame or cabinet.
  • fasteners of this type include a latching pawl which is provided extending from a shaft disposed in a latch housing. In operation, rotation of the shaft corresponds with a movement of the latching pawl to its latched position. Generally, the fasteners of this type require varying degrees of rotation of the shaft for operation of the latch.
  • latches include one or more fixed members, such as a housing, which is mounted to a panel, and also include movable members which are rotatably provided to turn relative to a fixed member.
  • latch is a "quarter turn" fastener which requires a 90° rotation for operation.
  • Such latches usually consist of a housing, drive stud, spring and pawl which are installed within an aperture formed in a door panel.
  • water, dust and other matter is able to pass freely through the latch and into the interior compartment of the door panel, thus into contact with the contents contained therein.
  • the spring which is positioned proximate the top of the latch between the drive stud and the housing is required during operation to support the load which is being applied by the latch. This increased stress applied by the latch adversely affects the spring's operation and durability.
  • latches generally include several components which must be assembled and installed on a panel.
  • prior art type latches include components which must be installed on the panel, and then other components which must be installed on the panel mounted components. The need exists for a latch which can be resistant to debris and dust, and can be readily installed on a panel for operation.
  • a rotating pawl latch where a pawl is rotated to one location to close the latch and to another location for releasing the latch are known.
  • These types of latches generally comprise multiple components which must themselves be assembled together before the latch can be installed on a mounting surface. Thus, multiple components are required to regulate the movement of the pawl among latching and releasing positions.
  • industries, such as, automotive assembly operations the ease with which latch installation can be accomplished is important.
  • hinged panel, as well as lift-off panel applications are common uses in the automotive industry where securing latches are employed.
  • the panels to be latched for example, can include closure panels of storage compartments, such as floor compartments of vehicles, as well as mechanical panels to regulate access to engines, and other mechanical systems.
  • the present invention attempts to provide a latch which is an improvement over prior latch designs, and which provides features of biasing a pawl into engagement with a keeper or corresponding frame, where the latch is rotated to selectively move the pawl into and out of engagement with the keeper or frame, and where the latch can be selectively positioned in one or more positions, such as, for example, open and closed positions through stops provided over the arc of rotation of the latch.
  • the further need of providing a latch which can be readily mounted to a panel is also accomplished.
  • the present invention provides a rotary latch which is adapted to be mounted to a first member, such as, for example, a closure panel, for releasably retaining the closure panel against a second member, such as, for example, a corresponding frame.
  • a first member such as, for example, a closure panel
  • a second member such as, for example, a corresponding frame.
  • the rotary latch of the present invention can be used in connection with automobile compartments.
  • the rotary latch of the present invention includes a one-piece body with mounting elements which are adapted for being received within an aperture of the closure panel to rotatably mount the latch to the closure panel.
  • the latch body also includes a pawl member which extends outwardly therefrom to engage a keeper member or corresponding frame of an adjacent panel and secure the closure panel to the frame.
  • a detent feature is provided to maintain the latch in one or more predetermined positions over the range of rotation of the latch.
  • the detent features can comprise a first stop at the closed position, and a second stop at the open position, although other stops, such as between open and closed positions, could be provided if desired.
  • the stops provide positioning of the latch to hold the latch in a corresponding position along the range of rotation, such as an open or closed position.
  • the rotary latch includes mounting elements and can be snap-fit into a panel aperture for installation.
  • a mounting flange is provided for use with the detent feature.
  • the mounting flange can be directly molded with the second member or can be separately provided (not shown) for mounting to the second member.
  • An object of the present invention is to provide a rotary latch which can be readily installed to a panel by insertion into a panel aperture.
  • a further object of the present invention is to provide a rotary latch which is durable in use and yet provides a smooth latching operation.
  • Another object of the present invention to provide a rotary latch which has one- piece construction.
  • Another object of the present invention is to provide a rotary latch which can be rotated to secure the pawl to a corresponding keeper, and rotated to release the pawl from the keeper.
  • Another object of the present invention is to provide a rotary latch which includes a detent element for maintaining the pawl in one or more positions along its rotational range, such as the closed position, and the open position.
  • Another object of the present invention is to provide a rotary latch having a one- piece construction wherein the entire latch is rotated to release the pawl from engagement with a keeper member and to secure the pawl with a keeper .
  • Another object of the present invention is to provide a rotary latch which can be used for securing one or more panels together, including lift-off panels, sliding panels, hinged panels, and to secure panels to a compartment frame or other surface.
  • Fig. 1 is a parallel perspective view of a rotary latch according to the present invention, viewed from the top right side.
  • Fig. 2 is a front elevation view of the rotary latch shown in Fig. 1.
  • Fig. 3 is a rear elevation view of the rotary latch of Fig. 1 shown installed on a closure panel, the closure panel being shown in sectional view.
  • Fig. 4 is a top plan view of the rotary latch of Fig. I.
  • Fig. 5 is a rear elevation view of the rotary latch of Fig. I.
  • Fig. 6 is a left side elevation view of the rotary latch of Fig. I.
  • Fig. 7 is a bottom plan view of the rotary latch shown in Fig. I.
  • Fig. 8 is a parallel perspective view of a closure panel adapted to receive the rotary latch according to the present invention for installation thereto, the panel shown with a flange for use with the detent feature.
  • a rotary latch 10 comprising a latch body 11, a knob or gripping portion 12, a latch base 13 forming an upper surface thereof, and a pawl member 14.
  • Mounting means is provided for mounting the latch 10 to a first member, such as the closure panel 100 shown in Fig. 3.
  • the mounting means preferably can comprise retaining elements, such as, for example, the snap legs 15, 16 disposed on the latch body 11.
  • the snap legs 15, 16 each include a free portion 17, 18, and an attached portion 20, 21, respectively.
  • each leg 15, 16 is shown connected to the latch body 11 which preferably comprises a circumferentiaUy configured wall portion extending downwardly from the base 13 of the gripping portion 12.
  • the free portion 17, 18 of each leg member 15 as a foot 25 with a sloped lower wall 26.
  • a groove or cut-out portion 31 formed in the circumferential latch body 11 surrounds the snap legs as shown in Figs, "and a similar cutout 30 surrounds the snap leg 15 in Fig. 6.
  • the circumferential latch body 11 is shown comprising a pair of wall portions disposed about the circumference of the latch 10, it will be understood that greater or lesser numbers of wall portions can be provided.
  • the circumferential walls of the latch body 11 can comprise a single wall portion with appropriate spacing for the pawl member 14.
  • the pawl member 14 is flexibly provided and is shown having an attached end 37 connected to the latch body front wall 32 and a free end 33 having a ridge 34 which is provided to engage a keeper member or adjacent panel surface.
  • the pawl member 14 shown comprising a ridge 34 can also be additionally, or alternately, 5 provided with any suitable means for connecting with a corresponding keeper member or surface which will enable the pawl to secure the latch 10.
  • supporting means is provided to support the pawl 14 against excessive retraction when it encounters a keeper (not shown).
  • the supporting means preferably comprises a rib 35 which is disposed behind the pawl member 14 and connected with the base of the latch and the front wall portion 32.
  • detent means is shown comprising a boss element 40 disposed on the underside of the base 13 and extending downwardly therefrom.
  • the detent means facilitates maintaining the location of the latch lOin a predetermined position, to hold the latch 10 against moving out of that position from vibrations, and other inadvertent forces which might otherwise operate to disturb the latch 10 and cause it to inadvertently rotate.
  • the boss element 40 is disposed at the rear of the latch 10 opposite the pawl end.
  • the detent means is shown further comprising a corresponding flange 50 which is provided on the closure panel 1OO to which the latch 10 is to be mounted.
  • the flange 50 can be integrally provided as part of the panel 1OO, as shown in Fig. 8, or can alternately, be separately provided (not shown) for mounting to a panel.
  • Fig. 8 shows the flange 50 having a circumferential groove 51 disposed therein.
  • the circumferential groove 51 is shown with two stepped grooves 52,53 which are disposed at each opposite end of the circumferential groove 51.
  • the first stepped groove 52 can correspond to a position where the latch 10 is closed (secured to a keeper), while the second stepped groove 53 can correspond to a position where the latch 10 is open (released from a keeper).
  • the arc of the circumferential groove 51 can be lengthened or contracted as necessary, and that stepped grooves can be provided at other locations, in addition to, or alternative to, those shown.
  • the provision of additional stepped grooves can comprise yet additional predetermined stop positions over the latch's range of rotation.
  • the latch 10 there is shown installed on a closure panel 100.
  • the snap legs 15 and 16 clamp the flange 50 of the closure panel 1OO between the top 27 of each leg member 15, 16 and the underside of the base 13.
  • the latch 10 is rotatable within the panel aperture 101 from a first or open position, through a range of rotation, to a second or closed position.
  • the latch 10 operates by rotating the handle 12, which rotates with the entire latch 10 to move the pawl 14 out of alignment and/or engagement with a keeper member. Similarly, the rotation of the latch 10 back to its original position secures the pawl 14 to a keeper.
  • the closed position is reached when the detent boss element 40 engages the first stepped groove 52, and similarly, the open position is reached when the boss element 40 engages the second stepped groove 53.
  • the pawl 14 is preferably provided to comprise a spring member which can be deflected to release the ridge 34 from a keeper member (not shown).
  • the pawl 14 is resilient over at least a portion, or all, ofits length. Supporting ribs, such as the longitudinal pawl rib 55 (Fig. 7) can be provided on the pawl 14 to improve the strength to the pawl 14 when it encounters forces from the keeper .
  • means can be preferably provided to stop the closure panel 100 from proceeding past a corresponding frame 200 when the closure panel is pivoted for closing.
  • Keeper means is also provided to secure the pawl member 14 of the latch 10.
  • the means for stopping the closure panel and the keeper means can comprise a protruding member provided on the second panel member, which acts to prevent further travel of the closure panel 100.
  • the gripping portion 12 of the latch 10 preferably can comprise an indented region for facilitating gripping contact by a user's fingers.
  • the keeper for example, can comprise any suitable keeper member provided as part of a frame or as a separate member mounted thereto.
  • the pawl member configuration shown having a ridge 34, can comprise alternate configurations which are suitable for engagement with a corresponding keeper configuration.
  • the closure panel 100 is shown, it will be understood that the present rotary latch can be employed in conjunction with other panels and closure members, including, for example, lift-off panels, sliding panels, joining panels, folding panels, and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

L'invention concerne un verrou rotatif à verrouillage et déverrouillage rotatifs. Ce verrou est logé dans une ouverture pratiquée dans un panneau de fermeture, afin de maintenir le panneau de fermeture de manière amovible contre une structure correspondante, le verrou à crochet étant composé d'un corps monobloc comportant un cliquet, d'une partie de prise, d'éléments de montage, et présentant un organe de détente facilitant l'entretien du verrou en position ouverte ou fermée.
PCT/US2000/041386 1999-10-20 2000-10-20 Verrou rotatif WO2001029351A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU27465/01A AU2746501A (en) 1999-10-20 2000-10-20 Rotary latch

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16058999P 1999-10-20 1999-10-20
US60/160,589 1999-10-20

Publications (2)

Publication Number Publication Date
WO2001029351A2 true WO2001029351A2 (fr) 2001-04-26
WO2001029351A3 WO2001029351A3 (fr) 2002-01-24

Family

ID=22577512

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/041386 WO2001029351A2 (fr) 1999-10-20 2000-10-20 Verrou rotatif

Country Status (2)

Country Link
AU (1) AU2746501A (fr)
WO (1) WO2001029351A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007095645A2 (fr) * 2006-02-16 2007-08-23 Southco, Inc. Dispositif de verrouillage a action rotative
EP2236713A1 (fr) * 2009-04-03 2010-10-06 Pinet Industrie Dispositif de verrouillage quart de tour à deux éléments
EP2412493A3 (fr) * 2010-07-30 2014-01-22 Hazet-Werk Hermann Zerver GmbH & Co. KG Mécanisme de verrouillage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3575452A (en) * 1969-04-14 1971-04-20 Minnesota Mining & Mfg Panel latch
US3829139A (en) * 1972-03-27 1974-08-13 Deco Prod Co Lock handle
US3876237A (en) * 1973-08-13 1975-04-08 Jr George Wilson Hayes Locking device
US4105230A (en) * 1975-03-04 1978-08-08 Daimler-Benz Aktiengesellschaft Closure for pivotal flaps, covers, or the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3575452A (en) * 1969-04-14 1971-04-20 Minnesota Mining & Mfg Panel latch
US3829139A (en) * 1972-03-27 1974-08-13 Deco Prod Co Lock handle
US3876237A (en) * 1973-08-13 1975-04-08 Jr George Wilson Hayes Locking device
US4105230A (en) * 1975-03-04 1978-08-08 Daimler-Benz Aktiengesellschaft Closure for pivotal flaps, covers, or the like

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007095645A2 (fr) * 2006-02-16 2007-08-23 Southco, Inc. Dispositif de verrouillage a action rotative
WO2007095645A3 (fr) * 2006-02-16 2008-02-21 Southco Dispositif de verrouillage a action rotative
GB2449024A (en) * 2006-02-16 2008-11-05 Southco Rotary action draw latch
EP2236713A1 (fr) * 2009-04-03 2010-10-06 Pinet Industrie Dispositif de verrouillage quart de tour à deux éléments
FR2944044A1 (fr) * 2009-04-03 2010-10-08 Pinet Ind Dispositif de verrouillage quart de tour a deux elements.
EP2412493A3 (fr) * 2010-07-30 2014-01-22 Hazet-Werk Hermann Zerver GmbH & Co. KG Mécanisme de verrouillage
TWI465325B (zh) * 2010-07-30 2014-12-21 Hazet Werk Zerver Hermann 閉鎖機構

Also Published As

Publication number Publication date
AU2746501A (en) 2001-04-30
WO2001029351A3 (fr) 2002-01-24

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