WO1993014324A1 - Dispositif de fixation rapide a crochet - Google Patents

Dispositif de fixation rapide a crochet Download PDF

Info

Publication number
WO1993014324A1
WO1993014324A1 PCT/GB1993/000083 GB9300083W WO9314324A1 WO 1993014324 A1 WO1993014324 A1 WO 1993014324A1 GB 9300083 W GB9300083 W GB 9300083W WO 9314324 A1 WO9314324 A1 WO 9314324A1
Authority
WO
WIPO (PCT)
Prior art keywords
stud
housing
head
shank
assembly
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.)
Ceased
Application number
PCT/GB1993/000083
Other languages
English (en)
Inventor
Andrew Charles Walden Wright
Hervé MONTFORT
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.)
Dzus Fastener Europe Ltd
Original Assignee
Dzus Fastener Europe Ltd
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 Dzus Fastener Europe Ltd filed Critical Dzus Fastener Europe Ltd
Priority to EP93901872A priority Critical patent/EP0621927A1/fr
Publication of WO1993014324A1 publication Critical patent/WO1993014324A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/09—Releasable fastening devices with a stud engaging a keyhole slot
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/02—Releasable fastening devices locking by rotation
    • F16B21/04—Releasable fastening devices locking by rotation with bayonet catch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/10—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of bayonet connections
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/1417—Mounting supporting structure in casing or on frame or rack having securing means for mounting boards, plates or wiring boards
    • H05K7/142—Spacers not being card guides

Definitions

  • the present invention relates to quick-relea fasteners of the type comprising a stud assembly which h a part which latches into an aperture in order to fast together a panel or first member to which the stud assemb is attached and a support or second member which contai the aperture or to which is attached a receptacle havi the aperture defined therein.
  • a fastener is shown in GB-A-2134965, and the st assembly includes a T-shaped fastening portion f cooperation with one of a plurality of rectangular slo formed in a metal strip which is retained in a generally T shaped recess in the support.
  • a stud assembl for a quick-release stud fastener the stud assembly havin a stud retainer comprising a housing having a elongate cross-section and a pair of depending retaine legs, each of which has an outwardly directed retaine flange at its free end; an elongate stud having a head, a shank depending therefrom, and a T-shaped fastening portion on the shank, remote from the head; and, a coil spring having an oval cross-section, the maximum diameter of which is greater than the width of the T-shaped fastening portion (to allow the spring to be passed thereover) , and less than the maximum but greater than the minimum internal diameter of the housing, and the minimum diameter of which is less than the diameter of the head of the stud, whereby the coil spring can be located, in use, around the shank of the stud and within the housing.
  • the coil spring can be located around the shank of the stud by being slid axially over the T-shaped end of the stud, and the stud and spring can then be snap fitted into the housing over a step or other cross- sectional change in area. This avoids the need to separate the stud into two parts which have to be joined during putting together of the stud assembly, whilst still providing a fastener with a small footprint narrower in one dimension than the other.
  • a stud assembly for a quick-release stud fastener having an elongate stud having a head, a shank depending therefrom, and a single, laterally extending pawl at the end of the shank remote from the head; a stud retainer comprising a housing having an elongate cross-section, the shank of the stud extending from the housing for engagement of the pawl with a receptacle mounted on or an aperture in the other member, the head of the stud being constrained for relative axial and rotational movement in the housing; and. a compression spring disposed around the shank of the stud within the housing, to bias the head of the stud away from the other member.
  • a stud assembly can be used which has the same strength as the previous proposal (the same dimensions for the shank of the stud amongst other things) , whilst being able to cooperate with a keyhole- shaped aperture in the receptacle or in the second member, so that the offset or pitch between adjacent fastening positions can be reduced.
  • Plural apertures are usually arranged in a row, either in the other member itself or in a receptacle strip and a further reduction in pitch can be achieved by disposing the long dimension of the apertures into which the stud pawl fits at an angle to the longitudinal dimension of the row.
  • the compression spring is preferably a coil spring which can fit over the pawl and end of the shank in order to be disposed around the shank underneath the head of the stud.
  • a stud assembly for a quick-release stud fastener for fastening together a pair of members, the stud assembly having a stud having a head at one end of an elongate shank and a laterally extending pawl at the other end; a stud retainer, which in use is mounted on a first of the members, comprising a housing retaining the head of the stud for axial and rotational movement therein, the shank of the stud extending from the housing for engagement of the pawl with a receptacle mounted on or an aperture in the other member, the head of the stud being constrained for relative axial movement in the housing in a first angular position, for relative rotational movement in the housing at an axial position at the end of its travel towards the other member, and for relative
  • the movement of the stud head within the housing is constrained by a laterally extending lug or protrusion on the head which fits within a pair of axially extending internally facing grooves in the wall of the housing and in an angularly extending arcuate slot connecting the axial slots at their ends closest to the other end of the stud.
  • the lateral dimensions of the stud assembly can be kept to a minimum.
  • the housing preferably has a pair of depending retainer legs, each of which has an outwardly directed retainer flange at its free end, for attachment of the stud assembly to the first member.
  • Figures 3 & 4 are partial axial sections of the fastener corresponding to figures 1 and 2 respectively;
  • Figure 5 is a diagrammatic perspective view of the housing of the stud assembly
  • Figures 6 & 7 a fragmentary perspective views of parts of the housing; and Figures 8 & 9 are views of a receptacle fo engagement with the stud assembly.
  • the stud assembly 1 of the fastener comprises a housing 2 which, as best seen in figures 1,2 and 5, has a wall 20 which is generally circular in cross-section, but which has a pair of protruding wall portions 21 which form internally facing axial grooves 26, and is formed of a synthetic plastics material such as an acetal copolymer.
  • the wall portions 21 extend into stiffening ribs 22 (best seen in figure 5) and the housing 2 has an open end 23 through which access is gained by a tool such a screwdriver or the like to the stud 3.
  • the open end 23 has an internally facing rib 23' to retain the head 31 of the stud 3.
  • the housing also has a pair of depending legs 24 each of which carries an outwardly directed flange 25 at its free end.
  • the legs are thicker than the walls 22 of the housing from which they extend and, thus, the interior wall surface 28 is ramped as seen in figures 4 and 5.
  • the housing has an arcuate slot 27, the ends of which connect with the ends of the grroves 26, thus defining a substantially U-shaped path.
  • the stud 3 Located within the housing as a snap fit are a die- cast zinc alloy stud 3 and steel coil spring 4.
  • the stud 3 has a generally circular head 31 with a cross slot 32 for engagement by a screwdriver tip to rotate the stud and a radially protruding lug 33 extending from the head.
  • the lug locates in one of the grooves 26 in the fastened position and in the other groove in the unfastened position, as seen in figures 1 and 2, and can move between the grooves 26 only by movement along the arcuate slot 27.
  • the stud is constrained to move axially while the lug 33 is in the grooves 26 and arcuately while it is in the slot 27.
  • the lug 33, grooves 26 and slot 27 thus provide stops to the rotation and axial movement of the stud within the housing 2.
  • the shank 34 of the stud extends from the underside of the head 31 and has a circular cross-section as best seen in figures 3 and 4.
  • a generally L-shaped fastening pawl 37 is provided, having chamfered engaging surfaces 38 and a generally conical nose portion 39 for guiding the stud assembly into engagement with the opening in which it locates in use.
  • the coil spring 4 is disposed around the shank of the stud 3.
  • a receptacle 5 in the form of an elongate channel- sectioned steel or stainless steel strip with plural, closely spaced, keyhole-shaped apertures 51 of a size to allow the L-shaped pawl 37 to pass through in one orientation, completes the fastener.
  • the legs 24 are shown extending through an opening 61 in a first member 6, with the leg flanges 25 having been pushed through the opening 61 and then springing out to engage the rear face 62 of the member 6 to retain the housing in place on the member.
  • the member 6 also has two location pins 63 which, being circular in cross-section and spaced appropriately, locate in the apertures 51 of the receptacle strip on each side of the aperture at which the fastener is located.
  • the receptacle strip 5 is located in a generally T-shaped recess 71 in a support member 7 , to which access is gained through a slit 72, and to fasten the first member 6 to the support member 7, the stud is presented to an aperture 51, through the slit 72, in the orientation shown in figures 1 and 3, is pushed through it, the lug 33 sliding along the groove 26, and is then rotated 120°, the lug moving arcuately in the slot 27, in order to locate the fastening pawl 37 behind the front wall 52 of the receptacle strip 5 as shown in figure 3, the spring 4 being compressed between the head 31 of the stud 3 and the base of the housing 2, which in turn bears against the front face 64 of the member 6. The spring then pushes the head 31 outwardly slightly, the
  • the stud 3 can be inserted as a snap fit in the housing 2 by being pushed through the open end 23, the head 31 being pushed over the rib 23', after the spring 4 has been located around the shank 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Abstract

Un dispositif de fixation rapide à crochet pour fixer ensemble une paire d'éléments (6, 7) comporte un système de crochet (1) comportant un crochet allongé (3) avec une tête (31), une tige (34) partant de la tête et un arrêtoir unique (37) partant latéralement de l'extrémité de la tige éloignée de la tête. Un dispositif de retenue du crochet comprend un logement (2) destiné à être monté sur le premier élément (6) et ayant une forme allongée en coupe transversale. La tige du crochet fait saillie hors du logement pour assurer l'engagement de l'arrêtoir avec un dispositif récepteur (5) monté sur l'autre élément (7) ou avec une ouverture aménagée dans celui-ci et la tête (31) du crochet est tenue de manière à pouvoir effectuer un mouvement axial et de rotation dans le logement. Un ressort de compression (4) est disposé autour de la tige (34) du crochet à l'intérieur du logement, de manière à pousser la tète du crochet dans la direction opposée à celle de l'autre élément.
PCT/GB1993/000083 1992-01-17 1993-01-15 Dispositif de fixation rapide a crochet Ceased WO1993014324A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93901872A EP0621927A1 (fr) 1992-01-17 1993-01-15 Dispositif de fixation rapide a crochet

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9200947.1 1992-01-17
GB929200947A GB9200947D0 (en) 1992-01-17 1992-01-17 Quick release stud fastener

Publications (1)

Publication Number Publication Date
WO1993014324A1 true WO1993014324A1 (fr) 1993-07-22

Family

ID=10708731

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/000083 Ceased WO1993014324A1 (fr) 1992-01-17 1993-01-15 Dispositif de fixation rapide a crochet

Country Status (3)

Country Link
EP (1) EP0621927A1 (fr)
GB (1) GB9200947D0 (fr)
WO (1) WO1993014324A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0641942A3 (fr) * 1993-08-07 1996-08-21 Camloc Gmbh Dispositif de fermeture à pression pour la fixation amovible de deux éléments.
EP0974699A1 (fr) * 1998-07-24 2000-01-26 ABG Allgemeine Baumaschinen-Gesellschaft mbH Poutre lisseuse pour finisseur de chaussée
FR2783025A1 (fr) * 1998-09-08 2000-03-10 Cibox Insert de fixation et disposition mettant en oeuvre ledit insert pour la fixation demontable d'un panneau amovible sur un chassis metallique
CN102338140A (zh) * 2011-08-24 2012-02-01 长沙中联重工科技发展股份有限公司 可调式自动装卸装置
GB2513894A (en) * 2013-05-10 2014-11-12 Daimler Ag Clip device and panel assembly
EP3493702A1 (fr) * 2016-08-02 2019-06-12 Octanorm-Vertriebs-Gmbh Für Bauelemente Élément de liaison

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1805210A1 (de) * 1967-12-29 1969-10-16 Augsburg Nuernberg Ag Zweignie Nasenschraube
FR2268977A1 (fr) * 1974-04-29 1975-11-21 Dzus Fastener Co
GB2123890A (en) * 1982-07-16 1984-02-08 Aircraft Materials Ltd Coupling pin
GB2134965A (en) * 1983-01-24 1984-08-22 Dzus Fastener Europe Quarter turn fastener
DE3612199A1 (de) * 1986-04-11 1987-10-22 Camloc Gmbh Vorrichtung zum loesbaren befestigen eines plattenfoermigen bauteils an einer unterlage mit zum bauteil hin offener t-nut
DE9106714U1 (de) * 1991-05-31 1991-07-18 Mannesmann Kienzle GmbH, 7730 Villingen-Schwenningen Baugruppe aus mehreren, in parallelen Ebenen angeordneten Montageplatten
WO1992004548A1 (fr) * 1990-08-29 1992-03-19 Donaldson Company, Inc. Emboitement a baionnette

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1805210A1 (de) * 1967-12-29 1969-10-16 Augsburg Nuernberg Ag Zweignie Nasenschraube
FR2268977A1 (fr) * 1974-04-29 1975-11-21 Dzus Fastener Co
GB2123890A (en) * 1982-07-16 1984-02-08 Aircraft Materials Ltd Coupling pin
GB2134965A (en) * 1983-01-24 1984-08-22 Dzus Fastener Europe Quarter turn fastener
DE3612199A1 (de) * 1986-04-11 1987-10-22 Camloc Gmbh Vorrichtung zum loesbaren befestigen eines plattenfoermigen bauteils an einer unterlage mit zum bauteil hin offener t-nut
WO1992004548A1 (fr) * 1990-08-29 1992-03-19 Donaldson Company, Inc. Emboitement a baionnette
DE9106714U1 (de) * 1991-05-31 1991-07-18 Mannesmann Kienzle GmbH, 7730 Villingen-Schwenningen Baugruppe aus mehreren, in parallelen Ebenen angeordneten Montageplatten

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0641942A3 (fr) * 1993-08-07 1996-08-21 Camloc Gmbh Dispositif de fermeture à pression pour la fixation amovible de deux éléments.
EP0974699A1 (fr) * 1998-07-24 2000-01-26 ABG Allgemeine Baumaschinen-Gesellschaft mbH Poutre lisseuse pour finisseur de chaussée
FR2783025A1 (fr) * 1998-09-08 2000-03-10 Cibox Insert de fixation et disposition mettant en oeuvre ledit insert pour la fixation demontable d'un panneau amovible sur un chassis metallique
CN102338140A (zh) * 2011-08-24 2012-02-01 长沙中联重工科技发展股份有限公司 可调式自动装卸装置
CN102338140B (zh) * 2011-08-24 2013-01-30 中联重科股份有限公司 可调式自动装卸装置
GB2513894A (en) * 2013-05-10 2014-11-12 Daimler Ag Clip device and panel assembly
EP3493702A1 (fr) * 2016-08-02 2019-06-12 Octanorm-Vertriebs-Gmbh Für Bauelemente Élément de liaison
US20190191872A1 (en) * 2016-08-02 2019-06-27 Octanorm-Vertriebs-GmbH für Bauelemente Connector

Also Published As

Publication number Publication date
EP0621927A1 (fr) 1994-11-02
GB9200947D0 (en) 1992-03-11

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