US3049041A - Anchoring device with resilient tie means for automatic pre-anchoring - Google Patents

Anchoring device with resilient tie means for automatic pre-anchoring Download PDF

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Publication number
US3049041A
US3049041A US13788A US1378860A US3049041A US 3049041 A US3049041 A US 3049041A US 13788 A US13788 A US 13788A US 1378860 A US1378860 A US 1378860A US 3049041 A US3049041 A US 3049041A
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United States
Prior art keywords
anchoring
shells
anchoring device
resilient
tie
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Expired - Lifetime
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US13788A
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English (en)
Inventor
Durget Andre
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Anciens Etablissements Goldenberg et Cie
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Anciens Etablissements Goldenberg et Cie
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/008—Anchoring or tensioning means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G3/00—Resilient suspensions for a single wheel
    • B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
    • B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
    • B60G3/24—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid a rigid arm being formed by the live axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G9/00—Resilient suspensions of a rigid axle or axle housing for two or more wheels
    • B60G9/02—Resilient suspensions of a rigid axle or axle housing for two or more wheels the axle or housing being pivotally mounted on the vehicle, e.g. the pivotal axis being parallel to the longitudinal axis of the vehicle
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • 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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
    • F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
    • 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
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
    • F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
    • F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
    • F16B13/068—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like expanded in two or more places

Definitions

  • the present invention relates to ⁇ anchoring devices and, more particularly, to anchoring devices of the type comprising a traction rod carrying one or more groups of cams cooperating with corresponding groups of ramps provided on shells enclosing the rod.
  • Such anchoring devices have multiple uses, in particular for setting objects in walls, bedding down machines and any other applications requiring the integral securement of any piece on any assembly capable of having a hole formed therein. Moreover, such devices are extensively used in mines for bolting the roof, the ⁇ facings and the walls thereof.
  • self-operated pre-anchoring it is meant that the anchoring device should become self sustaining as soon as it has been inserted in the bore and prior to any expansion of the device effected by means of a traction exerted on said rod.
  • the invention aims at overcoming the aforesaid drawback by providing an -anchoring device of the above-mentioned type, achieving the self-operated pre-anchoring by the provision of extremely simple means.
  • This device is essentially characterized in that the resilient means providing the said self-operated pre-anchoring is comprised by a resilient tie bearing by both ends thereof on the shells and extending through an aperture provided in the traction rod or one of the cams carried thereon.
  • FIG. 1 is an exploded view of one embodiment of the anchoring device designed in accordance with the invene tion;
  • FIGS. 2 and 3 are longitudinal sectional views of said anchoring device, shown as positioned in a bore and at two successive operational stages thereof;
  • FIG. 4 is a view similar to that of FIG. 2 but showing an alternative arrangement of the anchoring device.
  • the anchoring device comprises two shells 1 and 2 forming when juxtaposed a segmented tube, in which position they are maintained by a resilient ICC tie 3.
  • the thus-formed tube is adapted to enclose an assembly consisting of a traction rod and cams operative to expand the segmented tube.
  • This assembly comprises, starting at the top, a first group of cams provided by the side faces 4 of a wedge member A, a second set of cams provided by the side faces 5 of a second wedge member B, both Wedges A and B being connected by a cross-sectionally reduced portion 6, having on the sidewalls thereof reinforcing blocks 7 obtained by forging.
  • the unit B is unitary at its lower portion with a stirrup or bracket 8 having its two arms disposed on either side of said wedge B, and on the lower portion of which is provided a nut 9.
  • This nut has screwed therein a threaded end of the traction rod, proper, the other end of this rod 10, which is likewise threaded, having screwed thereon a nut 11 retaining a back plate 12 mounted on the rod 10.
  • the shells 1 and 2 are arranged so as to be adapted to the various components of the above described assembly.
  • the longitudinal edges of the shells each comprise an arcuate cut-out portion 13 to accommodate the reinforcing blocks 7, and a second rectilinear cut-out portion 14 adapted to have the arms of the bracket S located therein.
  • each shell has formed in the inner wall thereof a first ramp 1S adapted to cooperate with the corresponding face 4 of the block A, and a second ramp 16 adapted to cooperate with the corresponding face 5 of the block B.
  • each ramp 16 has formed therein, along the longitudinal axis thereof, a groove 17 into which can be engaged a projection 18 integrally formed on the corresponding -face 5, so as -to provide a guiding means for the block B.
  • the outer wall of ⁇ the shells has further the usual notches 20 formed thereon in order to grip the wall of the bore.
  • the base of the block B has bored therein a transverse aperture 21 through which extends an endless resilient tie 22 having its ends bearing respectively onto the base of each shell.
  • each shell is provided at the base thereof with a gripping finger or lug 23 of curved cross-section and into which is inserted the tie 22.
  • the inner wall of the shell bases is further provided with a groove or notch 24 to prevent the tie 22 from being sheared by the bases of the shells.
  • a bore F of a diameter substantially equal to the minimum diameter of the anchoring device In order to locate the anchoring device, there is formed a bore F of a diameter substantially equal to the minimum diameter of the anchoring device.
  • FIG. 2 When the tube formed by the shells 1 and 2 is at its smallest diameter, the various components of the anchoring device take the relative positions illustrated in FIG. 2, which are as follows:
  • the reinforcing blocks 7 are housed within the recesses 13 and the arms of the stirrup or bracket member 8 are engaged in the recesses 14;
  • the resilient tie 22 is in its position o-f maximum ten ⁇ sion.
  • the device is then ready to have imparted thereto the expansion proper, which is elected in the usual way, i.e. by tightening the nut 11 on the rod It).
  • the plate 12 comes to bear against the front face of the bore and thus any additional tightening of the nut 11 causes the traction rod to descend, which in turn causes the cams to be lowered on their respective ramps and the shells to be spread apart.
  • the resilient tie 22 can jump-off the lugs 23 or be sheared, but this is of no importance since it has already fulfilled the function for which it was intended.
  • FIG. 4 there is illustrated in FIG. 4 a moditication which differs from the foregoing embodiment merely by the following points:
  • the tie 22 is xed adjacent the apex thereof.
  • lugs 23a are provided at the upper portion of the windows 19, whereas the base of the block A has formed therein a hole 21a having the resilient tie 22 extended therethrough.
  • the operation of the device shown in FIG. 4 is substantially identical to that ofthe earlier-described arrangement, except that the tension which can be imparted to the tie 22 is smaller than in the rst embodiment.
  • An anchoring device comprising shells constituting a segmented tube adapted to be inserted into a boreprovided in a wall and dening an internal chamber, said shells having leading and trailing edges, a unit including a traction rod mounted in a longitudinally movable rela tionship within the chamber in said tube and at least one group of cams on said rod, at least one group of ramps on said shells internally thereof for cooperating with said group of cams, traction means at the outer end of said rod to displace the latter axially relative to said tube and to cause said tube to expand, resilient means holding the shells in assembled relation, a resilient tie extending diametrally through said unit via an aperture provided in the latter and spaced from said cams, and a lug on each shell spaced radially inwards of lthe outer periphery thereof and spaced from the leading edge toward the trailing edge thereof for engaging said tie and supporting the same substantially within said chamber, said tie connecting said shells with one another ⁇ and with said traction rod where
  • each shell is provided with a window and the lug on each shell is positioned in said window.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Ropes Or Cables (AREA)
US13788A 1959-03-17 1960-03-09 Anchoring device with resilient tie means for automatic pre-anchoring Expired - Lifetime US3049041A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR789637A FR1228960A (fr) 1959-03-17 1959-03-17 Dispositif d'ancrage

Publications (1)

Publication Number Publication Date
US3049041A true US3049041A (en) 1962-08-14

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ID=8712594

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Application Number Title Priority Date Filing Date
US13788A Expired - Lifetime US3049041A (en) 1959-03-17 1960-03-09 Anchoring device with resilient tie means for automatic pre-anchoring

Country Status (5)

Country Link
US (1) US3049041A (en(2012))
BE (1) BE588245A (en(2012))
ES (1) ES256590A1 (en(2012))
FR (1) FR1228960A (en(2012))
NL (1) NL112718C (en(2012))

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3018875A1 (de) 1980-05-16 1981-11-26 Hilti AG, 9494 Schaan Befestigungselement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1033447A (en) * 1912-02-08 1912-07-23 Herbert W Mower Expansion-bolt.
US2825258A (en) * 1954-07-23 1958-03-04 Republic Steel Corp Mine roof bolt having wedge sections mounted on a t-headed shank
US2832253A (en) * 1952-03-01 1958-04-29 Allimann Georges Expansion bolt having expanding jaws secured to elastic cup-shaped member
FR1171788A (fr) * 1957-04-19 1959-01-29 Anciens Etablissements Goldenb Dispositif d'ancrage
US2903938A (en) * 1956-01-18 1959-09-15 Strand Sven Hugo Anchor bolt having elastically connected wedge members

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1033447A (en) * 1912-02-08 1912-07-23 Herbert W Mower Expansion-bolt.
US2832253A (en) * 1952-03-01 1958-04-29 Allimann Georges Expansion bolt having expanding jaws secured to elastic cup-shaped member
US2825258A (en) * 1954-07-23 1958-03-04 Republic Steel Corp Mine roof bolt having wedge sections mounted on a t-headed shank
US2903938A (en) * 1956-01-18 1959-09-15 Strand Sven Hugo Anchor bolt having elastically connected wedge members
FR1171788A (fr) * 1957-04-19 1959-01-29 Anciens Etablissements Goldenb Dispositif d'ancrage

Also Published As

Publication number Publication date
NL112718C (nl) 1966-04-15
NL249453A (en(2012)) 1965-11-15
ES256590A1 (es) 1960-06-16
FR1228960A (fr) 1960-09-02
BE588245A (fr) 1960-07-01

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