EP0402388A1 - Organe d'attache - Google Patents

Organe d'attache

Info

Publication number
EP0402388A1
EP0402388A1 EP19890903002 EP89903002A EP0402388A1 EP 0402388 A1 EP0402388 A1 EP 0402388A1 EP 19890903002 EP19890903002 EP 19890903002 EP 89903002 A EP89903002 A EP 89903002A EP 0402388 A1 EP0402388 A1 EP 0402388A1
Authority
EP
European Patent Office
Prior art keywords
fastener
protuberances
tube
edges
accordance
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.)
Withdrawn
Application number
EP19890903002
Other languages
German (de)
English (en)
Inventor
Frederic A. Lange
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.)
INTERLOCK STRUCTURES INTERNATIONAL Inc
Original Assignee
INTERLOCK STRUCTURES INTERNATIONAL 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 INTERLOCK STRUCTURES INTERNATIONAL Inc filed Critical INTERLOCK STRUCTURES INTERNATIONAL Inc
Publication of EP0402388A1 publication Critical patent/EP0402388A1/fr
Withdrawn legal-status Critical Current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
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B1/1903—Connecting nodes specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
    • E04B1/5837—Connections for building structures in general of bar-shaped building elements with a closed cross-section of substantially circular form
    • 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
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
    • F16D1/108—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling
    • F16D1/112—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling the interengaging parts comprising torque-transmitting surfaces, e.g. bayonet joints
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
    • E04B1/19—Three-dimensional framework structures
    • E04B2001/1924—Struts specially adapted therefor
    • E04B2001/1927—Struts specially adapted therefor of essentially circular cross section
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/58—Connections for building structures in general of bar-shaped building elements
    • E04B1/5825—Connections for building structures in general of bar-shaped building elements with a closed cross-section
    • E04B2001/5856—Connections for building structures in general of bar-shaped building elements with a closed cross-section using the innerside thereof

Definitions

  • the present invention is directed generally to fasteners and, more particularly, to apparatus for connecting a hollow tube with an insert.
  • the present invention is directed to the problem of bringing tubes together along a longitudinal or axial direction and connecting them together.
  • fastening devices which function after first moving the tubes in a transverse direction relative to one another.
  • Many applications do not allow for such movement.
  • the connecting or fastening devices usually include end members having a larger transverse dimension than the transverse dimension of the tubes.
  • Such bulky devices may not be desirable for either functional or aesthetic reasons.
  • tubes are moved longitudinally or axially, one is swedged to allow it to telescope into the other.
  • Such interacting ends hold the tubes together in one axial direction, but not the other.
  • a common positive attachment is obtained by then using a bolt and nut. Such attachment is simple, but the lines of the tubes are aesthetically broken. . . .
  • the present invention is directed to a fastener for connecting a hollow tube and an insert member.
  • the hollow tube and insert member are aligned along a longitudinal axis.
  • the hollow tube has an open end, while the insert member is formed to slide into the open end of the tube.
  • the tube has a pair of openings in its wall with axially spaced first edges, while the insert member has cavity space in its wall with axially spaced second edges. Parts of the first and second edges are aligned.
  • the fastener comprises mechanism for engaging the first and second aligned edges and mechanism for levering the engaging mechanism between an engagement position with the first and second edges and a disengageable position with the first and second edges.
  • the fastener includes a pair of plate-like arm portions each having an end with a partially arcuate perimeter. Each of said arm portions is also formed arcuateiy. Furthermore, each of the arm portions includes a protuberance which fits into one of the openings in the tube and into the cavity space in the insert member. The protuberances contact the aligned first and second edges of the openings and the cavity space to fasten the tube and the insert member together.
  • the fastener also includes a yoke which is integral with the arm portions. The yoke is on one side of the tube and conforms to the tube.
  • the yoke In use, the yoke is grasped and rotated about the protuberances.
  • the arcuate shape of the arm portions and of the perimeters of the ends of the arm portions cause an outward camming so as to retract the protuberances from the cavity space of the insert member.
  • the fastener When the yoke is moved near the radial plane which passes through the centers of the protuberances, the fastener reaches the disengageable position where the protuberances are outwardly far enough that the insert member may be removed from the tube.
  • the present fastener is particularly advantageous since it fastens an insert member to a tube where the insert member is first moved axially into engagement with the tube, and the fastener, once completing the fastening, conforms generally to the profile of the tube thereby providing an aesthetically discreet connection.
  • the fastener is exciting in this regard since the tube may be any of a variety of types, such as, cylindrical, square, extruded, slotted, perforated, etc., and the insert may have a variety of configurations, such as, a tube of smaller diameter, a tube of the same diameter with a swedged end, a solid member, etc.
  • additional accessories or tubes can then be a part of or be further attached to the insert.
  • multiple tube assemblies in the form of trusses can be fastened together and can be fastened together so as to include accessories, such as a flat plate between them.
  • the fastener comprises a single piece part.
  • the fastener moves between engaging and disengageable positions. Furthermore, when it is in the disengageable position, it stays in position and does not fall from the tube.
  • the present fastener provides the added advantage of making a positive connection of a male/female relationship in a connection between similar parts.
  • the parts may have a universal 360 degree circumferential alignment or may be made to have a positive single or multiple number of circumferential alignments.
  • FIG. 1 is a perspective view of a first tube fastened to an insert in accordance with the present invention and of a second tube ready to be fastened to the insert;
  • Figure 2 is a side view of the engaged fastener of Figure 1;
  • Figure 3 is a cross-sectional view taken along line 3-3 of Figure 2;
  • Figure 4 is a cross-sectional view taken generally along lines 4-4 of Figure 1, with the insert shown to be inserted in the second tube;
  • FIG. 5 is a side view of an alternate embodiment fastener in accordance with the present invention.
  • Figure 6 is a cross-sectional view taken along line 6-6 of Figure 5;
  • Figure 7 is a side view of another alternate embodiment of a fastener in accordance with the present invention.
  • Figure 8 is a cross-sectional view taken along line 8-8 of Figure 7;
  • Figure 9 is a side view of still another alternate embodiment of a fastener in accordance with the present invention.
  • Figure 10 is a plan view of a blank of the fastener of Figure 9;
  • Figure 11 is a cross-sectional view illustrating yet another alternate embodiment of a fastener in accordance with the present invention.
  • Figure 12 is an exploded cross-sectional view of a portion of still another fastener in accordance with the present invention
  • Figure 13 is an exploded view of various inserts which may be used with the fastener of the present invention
  • Figure 14 is a cross-sectional view similar to Figure 4, except the insert is shown to be hollow;
  • Figure 15 is an exploded perspective view of a pair of triangular trusses which may be fastened together in accordance with the present invention.
  • Figure 16 is similar to Figure 15 except the inserts are formed in two parts so as to receive a plate between them.
  • connecting apparatus in accordance with the present invention is designated generally by the numeral 20.
  • Connecting apparatus 20 includes a fastener 22 which releasably fastens an insert 24 to a tube 26.
  • Tube 26 is a longitudinal member which may have a variety of cross-sectional shapes, such as, square, cylindrical, etc. It is also not necessary that the tube be completely enclosed. In the Figures, however, tube 26 is cylindrical and hollow. Tube 26 has an open end 28. A pair of openings 30 (see Figure 3) are spaced a short distance from open end 28. Openings 30 are preferably centered on a line passing through the main axis 32 of tube 26. Openings 30 have axially spaced edges 34 (see Figure 4) .
  • Insert member 24 may also have a variety of shapes, some of which are shown in Figure 13, described below.
  • insert 24 is a solid cylinder having a diameter only slightly smaller then the inside diameter of tube 26.
  • Any end portion 36 which is to be connected with a tube 26, or equivalently a tube 38 as shown in Figure 1 includes a cavity space 40 spaced a short distance from the end 42.
  • Cavity space 40 is preferably annular and includes edges 44 which are axially spaced approximately the same distance as edges 34 of openings 30.
  • Insert 24 has a beveled portion 50 between cylindrical portion 46 and end 42. In this way, insert 24 is formed to easily slide into the open end of a tube and cam protuberances 60 apart before they engage cavity space 40.
  • both the insert and the tube are aligned generally along the main axis of the cylindrical shape of each.
  • Fastener 22 can include a pair of plugs 54 as shown in Figures 1-4. For some embodiments, as discussed hereinafter, plugs 54 are unnecessary.
  • the primary member of fastener 22 is formed to have a pair of arm portions 56 and a yoke portion 58.
  • a protuberance 60 is formed in each arm portion 56.
  • a plug 54 when used, fits in and strengthens each protuberance 60.
  • insert 24 is slid into open end 28 of tube 26 until the spaced-apart edges 34 of openings 30 and the spaced-apart edges 44 of cavity space 40 align. With fastener 22 installed on tube 26, protuberances 60 are engageable with the aligned edges 34 and 44.
  • fastener 22 is movable between an engagement position wherein insert 24 and tube 26 are fastened together and a disengageable position where insert 24 may be disengaged from protuberances 60 and pulled from tube 26.
  • the engagement position is shown with respect to tube 26 in Figures 1 and 4.
  • the disengageable position is shown with respect to tube 38 in Figures 1 and 4.
  • Fastener 22 is formed arcuateiy to conform to tube 26 when fastener 22 is in the engagement position. Since the yoke portion conforms to the cylindrical tube, it defines a yoke axis which is substantially the same as main axis 32.
  • the protuberances 60 have centers located in a plane generally perpendicular to the yoke axis.
  • the yoke portion 58 then has a centerline 62 which is perpendicular to the yoke axis. Centerline 62 is axially spaced with respect to the plane which includes the centers of protuberances 60.
  • Arm portions 56 extend generally in a direction parallel to main axis 32. Each arm portion 56 has an end 64 with the unconnected portion of its perimeter formed arcuateiy. For a reason which will become apparent, arcuate end 64 should include more than 180 degrees of an arc which is centered on protuberances 60.
  • the engagement mechanism of fastener 22 includes protuberances 60 as first elements.
  • the disengagement mechanism of fastener 22 includes yoke portion 58 which extends generally in a direction perpendicular to the main axis, but which is integrally connected with the arm portions which extend generally in a direction parallel with the main axis.
  • the arm portions 56 are formed arcuateiy to conform to tube 26 and since ends 64 have an arcuate perimeter, the arm portions 56 form second elements having on at least one side of the plane formed by main axis 32 and the centers of protuberances 60, cam surfaces which are curved with respect to a pair of orthogonal axes and which provide points on opposite sides of protuberances 60 which function as a fulcrum as yoke 58 is rotated about protuberances 60. That is, yoke 58 as connected with arm portions 56 becomes a lever pivoting on the indicated fulcrum to expand arm portions 56 away from tube 26 thereby moving protuberances 60 out of a position of positive engagement with at least one of edges 44 of insert 24.
  • lock member 52 must be made from a material which will allow arm portions 56 to spring outwardly, while at the same time retaining a memory so that they return to the original configuration when fastener 22 is returned to the engagement position from the disengageable position. Suitable materials include appropriate spring steels and appropriate plastics.
  • Protuberances 60 as shown in Figures 1-4 are extruded in arm portions 56 such that they are generally centered or in a concentric relationship with the arcuate perimeters of ends 64.
  • the procedure for making a fastener 22 with an extruded protuberance includes first cutting an appropriate blank from flat sheet. An opening is drilled or formed at the center of where the protrusion is to be located. Then, an appropriate tool forms the extrusion so that protuberance 60 has a cylindrical side wall in integral attachment with arm portion 56, but does not have a complete bottom.
  • Plugs 54 are inserted to provide strength in a direction transverse to the cylindrical axis of the protuberance. The plugs 54 may be fastened in a conventional way, such as, friction, solder, etc.
  • fastener 22' may be formed so that a plug or rivet is not needed.
  • Fastener 22' is formed from a blank 70.
  • Blank 70 includes a pair of slots 72 and 74 on opposite sides of the center of where each protuberance will be located as indicated by the circular broken line 76.
  • Slots 72 and 74 are generally aligned along a plane which includes the centers of the protuberances after they are formed, which plane is also approximately perpendicular with the yoke axis.
  • the protuberances in blank 70 are formed by a drawing process. That is, an appropriate tool forms the cup-liked protuberance by drawing material into the protuberance thereby substantially closing slots 72.
  • the blank is formed arcuateiy to conform to tube 26' and is then heat treated. It is observed that it is desirable to move protuberances in and out with respect to tube 26' by moving them generally along a chord line, usually a line through the main axis of tube 26* , the protuberances moving between an engagement position and a disengageable position. In order to move the protuberances in this fashion, it is desirable that the edge 78 between slots 72 which are farthest from one another is as close in length as possible with edge 80 between slots 74 which are nearest one another.
  • protuberance 60' ' may be molded without any slits or openings as shown in Figure 12.
  • a metallic plug 86 is fastened in it.
  • Fastener 22 , , , is formed to have a yoke portion 58* ⁇ • * connecting integrally with arm portions se*''' on opposite sides thereof.
  • the ends of the rod-like material are bent toward one another to form protuberances 64''''.
  • yoke portion 58* ' • ' when it is in the engagement position, has a centerline 88 which is perpendicular to the main axis 32' ' ' ' of tube 26' • • ' .
  • Yoke portion 58• ' " is formed arcuateiy to conform to the curvature of tube 26 1 ' 1 '. Arm portions se'''* smoothly proceed from yoke portion 58*' •' to protuberances 60'''' at the ends. Openings 34' are on opposite sides of tube 26'''' with the centers being in the same plane as main axis 32' ' • ' . Yoke portion 58' » • ' is above that plane. Arm portions 56' • ' • are below that plane and have a U-like shape as viewed from the side. Arm portions 56'''* are also formed arcuateiy to conform with the curvature of tube 26' ' ' • .
  • Protuberances 6 i i i i i are bent at approximately right angle from arm portions 56' ' ' ' .
  • Protuberances 64' * ' • ' extend toward one another sufficiently far so that they engage the edges of the cavity space of the insert when fastener 22' ' ' ' is in the engagement position, but yet can be retracted so that they are disengageable from the cavity space of the insert when fastener 22' ' • ' is in the disengageable position, as shown in broken lines in Figure 5.
  • arm portions 56• ' ' ' with tube 26 , , l » forms the camming surface for springing protuberances 64'''' outwardly when fastener 22'''' is moved from the engagement position to the disengageable position.
  • FIG. 7 and 8 illustrates a fastener 22' ' * ' ' which includes protuberances 60' ' ' ' ' which are formed by a drawing procedure similar to that described with respect to fastener 22' .
  • the arm portions 56i i i i i i extend downwardly from the center of protuberances 60 « •• » • and toward yoke portion 58''''' so that the camming surface which is formed on the yoke portion side of slot 72* • * ' • is at a greater distance from the center of protuberance of 60' ' ' ' ' than the camming surface on the side opposite yoke portion 58' ' • ' ' of slot 74' ' ' ' ' ' .
  • fastener 22' ' ' ' ' ' is the inverted U-like handle 90 formed in a central region of yoke portion 58''''' between arm portions 56'''''. Handle 90 extends away from tube 26''''' so that fastener 22' 1 ''' may be more easily grasped and moved between the engagement and disengageable positions.
  • fastener in accordance with the present invention has been presented.
  • the various embodiments are advantageous in that they show the fastener can be made using a variety of procedures, including extruding the protuberance, drawing the protuberance, forming the protuberance with a rivet, making the fastener from plastic and reinforcing the protuberance with a "metallic plug.
  • Insert 24' is shown to include not only a first annular cavity space 40', but also a second annular cavity space 92. There could, of course, be even more such spaces. In this way, various depths of insertion into the tube are possible. It is noted that the cylindrical portion 94 between the two annular spaces must have the diameter of cylindrical portion 48' so that disengagement is not too difficult if the protuberances of the fastener are not retracted completely within the wall of the tube.
  • a further feature of insert 24' is the flats 96 formed in a region between the opposite ends. A threaded opening 98 is shown extending between flats 96. The threaded opening and flat may be used to attach an accessory, the accessory being locatable in the region between connecting tubes.
  • Insert 24* • is essentially one-half of insert 24.
  • the end 100 opposite end 42' which is formed for use with a fastener in accordance with the present invention includes a tapped opening 102 to which an accessory, such as a hanger 104, may be fastened with a screw 106.
  • an accessory such as a hanger 104
  • a second insert 24'' could be attached on the opposite side of hanger 104 from the first insert 24' ' thereby illustrating how a hanger accessory can be attached between connecting tubes in accordance with this invention (see also Figure 16).
  • Insert 24'*' is a tube 108 having a swedged end 110.
  • End 110 includes a pair of openings 112 opposite from one another and formed to align with the openings in the connecting tube so that the protuberances of the fastener may fit therein.
  • the cavity space of insert 24• ' • are openings 112, rather than an annular space. Openings 112 thus provide a positive rotational fastening if that is desired, while an insert such as 24' with an annular cavity space 40' provides a connection regardless of the rotational orientation of insert 24'.
  • insert 24* ' ' is hollow so that wires or other materials can be conveniently passed through the connection. It is noted that others of the various insert embodiments could also be hollow (see for example Figure 14). All the embodiments of fasteners and inserts are used similarly.
  • a fastener 22 is installed on tube 26 so that protuberances 60 fit in openings 30.
  • Fastener 22 is rotated in a first direction about protuberances 60 to the disengageable position as shown with respect to tube 38 in Figure 1.
  • An insert 24 is then slid into the open end of the tube until the edges 44 of cavity space 40 align with edges 34 of openings 30.
  • Fastener 22 is then rotated in the direction opposite to the first direction so that it moves from the disengageable position to the engagement position.
  • the protuberances fit into openings 30 and cavity space 40 to positively connect insert 24 to tube 26.
  • Insert 24 is disengaged from tube 26 by rotating fastener 22 again in the first direction to the disengageable position. Insert 24 is then pulled from the end of the hollow tube.
  • fastener 22 allows it to deform so as to spring protuberances 60 apart.
  • an insert 24 may be installed simply by inserting it with some force so that protuberances 60 ride up on and are cammed outwardly by beveled portion 50. Thus, for installation purposes, it is unnecessary to move fastener 22 into the disengageable position.
  • first and second truss members 114 and 116 are shown with each tube 118 connected together in the fashion of Figure 1.
  • the various tubes 118 are interconnected by webbing 120. In this way, the tubes are held spaced-apart and are held to extend longitudinally in an approximately parallel fashion.
  • truss members 114' and 116' are connected together using inserts 24'* with a threaded rod 122 threaded into each threaded opening 102 (see Figure 13) of the facing ends of inserts 24*'.
  • Plate 124 includes openings 126 which can receive threaded rods 122 therethrough to thereby hold plate 124 between inserts 24'' and, consequently, between trusses 114' and 116'. It is understood that plate 124 may have any thickness and a variety of shapes.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

Organe d'attache (22) reliant une pièce rapportée (24) à un tube creux (26). L'organe d'attache décrit (22) comporte une paire de bras (58) s'étendant entre une paire de bras (56), tous ces éléments étant incurvés de manière à épouser la forme du tube (26). Les bras (56) présentent des extrémités incurvées libres et comprennent des protubérances (60) pouvant se déplacer entre une position d'engagement avec les bords (34) des ouvertures (30) dans le tube (26) et les bords (44) d'un évidement (40) dans la pièce rapportée (24), et une position de dégagement d'avec les bords (34) et (44).
EP19890903002 1988-03-02 1989-02-27 Organe d'attache Withdrawn EP0402388A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16298488A 1988-03-02 1988-03-02
US162984 1988-03-02

Publications (1)

Publication Number Publication Date
EP0402388A1 true EP0402388A1 (fr) 1990-12-19

Family

ID=22587946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890903002 Withdrawn EP0402388A1 (fr) 1988-03-02 1989-02-27 Organe d'attache

Country Status (4)

Country Link
EP (1) EP0402388A1 (fr)
JP (1) JPH03504036A (fr)
CA (1) CA1310168C (fr)
WO (1) WO1989008205A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9300652A (nl) * 1993-04-16 1994-11-16 Stork Brabant Bv Snelkoppeling voor het met elkaar verbinden van leidingdelen, in het bijzonder slangdelen.
US5470834A (en) * 1993-10-06 1995-11-28 Florida State University Sulfoximine and suldodiimine matrix metalloproteinase inhibitors
SE511752C2 (sv) * 1997-08-04 1999-11-22 Nederman Philip & Co Ab Anordning för bortföring av avgaser från fordon

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB734513A (en) * 1952-06-18 1955-08-03 Kwikform Ltd A new or improved frame unit for use in the erection of dismountable structures
DE2143700C3 (de) * 1971-09-01 1980-04-30 Fa. Friedr. Ischebeck, 5828 Ennepetal Steckzapfenverriegelung an Baustützen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8908205A1 *

Also Published As

Publication number Publication date
CA1310168C (fr) 1992-11-17
JPH03504036A (ja) 1991-09-05
WO1989008205A1 (fr) 1989-09-08

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