US5702216A - Expanding wall plug - Google Patents

Expanding wall plug Download PDF

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Publication number
US5702216A
US5702216A US08/703,886 US70388696A US5702216A US 5702216 A US5702216 A US 5702216A US 70388696 A US70388696 A US 70388696A US 5702216 A US5702216 A US 5702216A
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United States
Prior art keywords
shell
expansion
screw
screw rod
hole
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Expired - Fee Related
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US08/703,886
Inventor
Ming-Hsin Wu
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Individual
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Priority to US08/703,886 priority Critical patent/US5702216A/en
Priority to GB9618145A priority patent/GB2316728A/en
Priority to DE29615691U priority patent/DE29615691U1/en
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Publication of US5702216A publication Critical patent/US5702216A/en
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Expired - Fee Related legal-status Critical Current

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    • 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

Definitions

  • the present invention relates to expanding wall plugs, and relates more particularly to such an expanding wall plug which is mounted with an anchoring socket that absorbs shearing force.
  • Regular expanding wall plugs are commonly comprised of a screw rod, an expansion shell, and a tightening up device.
  • the screw rod is inserted through the expansion shell.
  • the tightening up device is threaded onto the screw rod.
  • the tightening up device is forced forward to squeeze the expansion shell against the head of the screw rod upon rotary motion of the screw rod, causing the expansion shell to expand and to fix to the inside of the hole in the wall.
  • This structure of expanding wall plug cannot be positively anchored in a wall of soft material structure.
  • Regular expanding wall plugs have different sizes for fastening to walls of different depths. Therefore, different expanding wall plugs must be used for different conditions.
  • regular expanding wall plugs are designed to protect against tension force. However, because shearing force is concentrated at the screw rod, the screw rod tends to be damaged.
  • the expanding wall plug comprises a headed anchoring socket adapted for mounting in a hole in a wall, a screw inserted through the anchoring socket and having a head received in a tapered hole at one end of the anchoring socket, an expansion shell mounted around the screw and abutted against the anchoring socket, the shell having two wedge blocks and an outer thread or plurality of circumferential ribs at two opposite ends for anchoring, and two opposite longitudinal slots at one end, and a conical tightening up device mounted around the screw rod and forced forwards to squeeze the locating expansion shell against the anchoring socket axially upon rotary motion of the screw rod, the conical tightening up device having two wedge blocks symmetrically raised from the periphery and respectively forced into the longitudinal slots of the locating expansion shell.
  • the screw rod has a plain rod section at one end connected to the head. This alternate form is practical for installation in
  • FIG. 1 is an exploded perspective view of an expanding wall plug according to a first embodiment of the present invention
  • FIG. 2 is a sectional view of an installed example of the first embodiment of the present invention (the expansion tension shell excluded);
  • FIG. 3 is a perspective view of the first embodiment of present invention (the expansion tension shell excluded);
  • FIG. 4 is a perspective view of the first embodiment of the present invention (the expansion tension shell included);
  • FIG. 5 is an exploded perspective view of an expanding wall plug according to a second embodiment of the present invention.
  • FIG. 6 is a sectional view of an installed example of the second embodiment of the present invention.
  • FIG. 7 is a perspective view of the second embodiment of the present invention.
  • an expanding wall plug in accordance with a first embodiment of the present invention is generally comprised of a screw rod 1, an anchoring socket 2, a locating expansion shell 3, a tightening up device 4, and an expansion tension shell 5.
  • the screw rod 1 has a head 11 at one end.
  • the anchoring socket 2 is made from metal and adapted for mounting in a hole in a wall, having an outward flange 22 extending around one end and a longitudinal through hole 21.
  • the longitudinal through hole 21 has one end flared outwardly so that the head 11 of the screw 1 can be completely received in the longitudinal through hole 21.
  • the locating expansion shell 3 is a hollow shell molded from plastic, comprising two wedge blocks 31 symmetrically raised from the periphery at one end, an outer threaded or a plurality of circumferential ribs 34 at an opposite end, and two opposite longitudinal slots 32 cut through the outer thread or ribs 34 and extending to one end.
  • the wedge blocks 31 and the longitudinal slots 32 are equiangularly spaced around the periphery of the locating expansion shell 3.
  • the tightening up device 4 is a conical member having a screw hole 41 through the longitudinal central axis, and two wedge blocks 42 symmetrically raised from the periphery.
  • the expansion tension shell 5 comprises a tapered coupling portion 51 at one end, two wedge blocks 52 symmetrically raised from the tapered coupling portion 51 at two opposite sides, an outer thread or a plurality or circumferential ribs 53 at an opposite end, and two opposite longitudinal slots 54 cut through the ribs 53 and extending to one end.
  • the wedge blocks 52 and the longitudinal slots 54 are equiangularly spaced around the periphery of the expansion tension shell 5.
  • the screw rod 1 is inserted in proper order through the anchoring socket 2, the locating expansion shell 3, and the expansion tension shell 5, and then threaded into the tightening up device 4, permitting the wedge blocks 42 of the tightening up device 4 to be respectively forced into the longitudinal slots 54 of the expansion tension shell 5 and the wedge blocks 52 of the expansion tension shell 5 into the longitudinal slots 32 of the locating expansion shell 3.
  • expansion tension shell 5 may be eliminated, permitting the wedge blocks 42 of the tightening up device 4 to be respectively forced into the longitudinal slots 32 of the locating expansion shell 3, as shown in FIG. 3.
  • FIGS. from 5 to 7 show an expansion wall plug according to a second embodiment of the present invention.
  • the expansion wall plug is comprised of a screw rod 1', an anchoring socket 2', a locating expansion shell 3, and a tightening up device 4.
  • the locating expansion shell 3 and the tightening up device 4 are identical to that of the aforesaid first embodiment of the present invention.
  • the anchoring socket 2' is similar to the anchoring socket 2 of the first embodiment of the present invention, having an outward flange 22' at one end, and a longitudinal through hole 21'.
  • the anchoring socket 2' of the second embodiment of the present invention is relatively longer than the anchoring socket 2 of the first embodiment of the present invention.
  • the screw 1' has an outer thread 11' around the periphery of the front half, and a head 12' at one end of the plain second half remote from the outer thread 11'.
  • This expanding wall plug is practical for fastening a workpiece 6' to two spaced walls 7', 8' (see FIG. 6).
  • the screw rod 1' is inserted through the anchoring socket 2' and the locating expansion shell 3, and threaded into the screw hole 41 of the tightening up device 4, permitting the wedge blocks 42 of the tightening up device 4 to be forced into the longitudinal slots 32 of the locating expansion shell 3.
  • the screw 2' is rotated to force the tightening up device 4 forwards, thereby causing the locating expansion shell 3 to be forced by the tightening up device 4 to expand. Because the screw 1' is embedded in the anchoring socket 2', it is free from the effect of shearing force.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

An expanding wall plug including a headed anchoring socket adapted for mounting in a hole in a wall; a screw inserted through the anchoring socket and having a head received in a tapered hole at one end of the anchoring socket, an expansion shell mounted around the screw and abutted against the anchoring socket, having two wedge blocks and an outer thread or ribs at two opposite ends for anchoring, and two opposite longitudinal slots at one end, and a conical tightening up device mounted around the screw rod and forced forwards to squeeze the locating expansion shell against the anchoring socket axially upon rotary motion of the screw rod, the conical tightening up device having two wedge blocks symmetrically raised from the periphery and respectively forced into the longitudinal slots of the locating expansion shell.

Description

BACKGROUND OF THE INVENTION
(a) Field of the Invention
The present invention relates to expanding wall plugs, and relates more particularly to such an expanding wall plug which is mounted with an anchoring socket that absorbs shearing force.
(b) Description of the Prior Art
Regular expanding wall plugs are commonly comprised of a screw rod, an expansion shell, and a tightening up device. The screw rod is inserted through the expansion shell. The tightening up device is threaded onto the screw rod. When installed in a hole in a wall, the tightening up device is forced forward to squeeze the expansion shell against the head of the screw rod upon rotary motion of the screw rod, causing the expansion shell to expand and to fix to the inside of the hole in the wall. This structure of expanding wall plug cannot be positively anchored in a wall of soft material structure. Regular expanding wall plugs have different sizes for fastening to walls of different depths. Therefore, different expanding wall plugs must be used for different conditions. Furthermore, regular expanding wall plugs are designed to protect against tension force. However, because shearing force is concentrated at the screw rod, the screw rod tends to be damaged.
SUMMARY OF THE INVENTION
The present invention provides an expanding wall plug which eliminates the aforesaid drawbacks. According to one embodiment of the present invention, the expanding wall plug comprises a headed anchoring socket adapted for mounting in a hole in a wall, a screw inserted through the anchoring socket and having a head received in a tapered hole at one end of the anchoring socket, an expansion shell mounted around the screw and abutted against the anchoring socket, the shell having two wedge blocks and an outer thread or plurality of circumferential ribs at two opposite ends for anchoring, and two opposite longitudinal slots at one end, and a conical tightening up device mounted around the screw rod and forced forwards to squeeze the locating expansion shell against the anchoring socket axially upon rotary motion of the screw rod, the conical tightening up device having two wedge blocks symmetrically raised from the periphery and respectively forced into the longitudinal slots of the locating expansion shell. According to an alternate form of the present invention, the screw rod has a plain rod section at one end connected to the head. This alternate form is practical for installation in a hollow wall, or spaced walls.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded perspective view of an expanding wall plug according to a first embodiment of the present invention;
FIG. 2 is a sectional view of an installed example of the first embodiment of the present invention (the expansion tension shell excluded);
FIG. 3 is a perspective view of the first embodiment of present invention (the expansion tension shell excluded);
FIG. 4 is a perspective view of the first embodiment of the present invention (the expansion tension shell included);
FIG. 5 is an exploded perspective view of an expanding wall plug according to a second embodiment of the present invention;
FIG. 6 is a sectional view of an installed example of the second embodiment of the present invention; and
FIG. 7 is a perspective view of the second embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIG. 1, an expanding wall plug in accordance with a first embodiment of the present invention is generally comprised of a screw rod 1, an anchoring socket 2, a locating expansion shell 3, a tightening up device 4, and an expansion tension shell 5.
The screw rod 1 has a head 11 at one end. The anchoring socket 2 is made from metal and adapted for mounting in a hole in a wall, having an outward flange 22 extending around one end and a longitudinal through hole 21. The longitudinal through hole 21 has one end flared outwardly so that the head 11 of the screw 1 can be completely received in the longitudinal through hole 21. The locating expansion shell 3 is a hollow shell molded from plastic, comprising two wedge blocks 31 symmetrically raised from the periphery at one end, an outer threaded or a plurality of circumferential ribs 34 at an opposite end, and two opposite longitudinal slots 32 cut through the outer thread or ribs 34 and extending to one end. The wedge blocks 31 and the longitudinal slots 32 are equiangularly spaced around the periphery of the locating expansion shell 3. The tightening up device 4 is a conical member having a screw hole 41 through the longitudinal central axis, and two wedge blocks 42 symmetrically raised from the periphery. The expansion tension shell 5 comprises a tapered coupling portion 51 at one end, two wedge blocks 52 symmetrically raised from the tapered coupling portion 51 at two opposite sides, an outer thread or a plurality or circumferential ribs 53 at an opposite end, and two opposite longitudinal slots 54 cut through the ribs 53 and extending to one end. The wedge blocks 52 and the longitudinal slots 54 are equiangularly spaced around the periphery of the expansion tension shell 5.
Referring to FIG. 4, the screw rod 1 is inserted in proper order through the anchoring socket 2, the locating expansion shell 3, and the expansion tension shell 5, and then threaded into the tightening up device 4, permitting the wedge blocks 42 of the tightening up device 4 to be respectively forced into the longitudinal slots 54 of the expansion tension shell 5 and the wedge blocks 52 of the expansion tension shell 5 into the longitudinal slots 32 of the locating expansion shell 3.
As an alternative arrangement, the expansion tension shell 5 may be eliminated, permitting the wedge blocks 42 of the tightening up device 4 to be respectively forced into the longitudinal slots 32 of the locating expansion shell 3, as shown in FIG. 3.
Referring to FIG. 2, when the expanding wall plug is inserted into a hole in the workpiece 6 and a hole in the wall, the outward flange 22 of the anchoring socket 2 is stopped outside the workpiece 6, and the head 11 of the screw rod 1 is received in the anchoring socket 2 in flush with the outward flange 22. When the screw rod 1 is turned, the tightening up device 4 is forced against and squeeze the locating expansion shell 3, causing the locating expansion shell 3 to expand and secure itself to the inside surface of the wall hole. Because the screw rod 1 is embedded in the anchoring socket 2, shearing force is completely absorbed by the anchoring socket 2. Therefore, the screw rod 1 does not bear any shearing force.
FIGS. from 5 to 7 show an expansion wall plug according to a second embodiment of the present invention. According to this alternate form, the expansion wall plug is comprised of a screw rod 1', an anchoring socket 2', a locating expansion shell 3, and a tightening up device 4. The locating expansion shell 3 and the tightening up device 4 are identical to that of the aforesaid first embodiment of the present invention. The anchoring socket 2' is similar to the anchoring socket 2 of the first embodiment of the present invention, having an outward flange 22' at one end, and a longitudinal through hole 21'. However, the anchoring socket 2' of the second embodiment of the present invention is relatively longer than the anchoring socket 2 of the first embodiment of the present invention. The screw 1' has an outer thread 11' around the periphery of the front half, and a head 12' at one end of the plain second half remote from the outer thread 11'. This expanding wall plug is practical for fastening a workpiece 6' to two spaced walls 7', 8' (see FIG. 6). Before installation, the screw rod 1' is inserted through the anchoring socket 2' and the locating expansion shell 3, and threaded into the screw hole 41 of the tightening up device 4, permitting the wedge blocks 42 of the tightening up device 4 to be forced into the longitudinal slots 32 of the locating expansion shell 3. When installed, as shown in FIG. 6, the screw 2' is rotated to force the tightening up device 4 forwards, thereby causing the locating expansion shell 3 to be forced by the tightening up device 4 to expand. Because the screw 1' is embedded in the anchoring socket 2', it is free from the effect of shearing force.
It is to be understood that the drawings are designed for purposes of illustration only, and are not intended as a definition of the limits and scope of the invention disclosed.

Claims (4)

What the invention disclosed is:
1. An expanding wall plug comprising:
an anchoring socket made from metal and adapted for mounting in a hole in a wall, the socket having an outward flange raised around one end thereof, and a longitudinal through hole, said longitudinal through hole having a tapered outer end gradually increasing toward the outside;
a screw inserted through said anchoring socket, the screw having a head received in the tapered outer end of the longitudinal through hole of said anchoring socket;
a locating expansion shell sleeved onto said screw and abutted against one end of said anchoring socket, said expansion shell comprising two wedge blocks symmetrically raised from the periphery at one end, a plurality of circumferential ribs at an opposite end, and two opposite longitudinal slots cut through the ribs and extending to one end, the wedge blocks and longitudinal slots of said expansion shell being equiangularly spaced around the periphery; and
a conical tightening up device mounted around said screw rod and forced forwards to squeeze said locating expansion shell against said anchoring socket axially upon rotary motion of said screw rod, said conical tightening up device having a screw hole threaded onto said screw rod, and two wedge blocks symmetrically raised from the periphery and respectively forced into the longitudinal slots of said locating expansion shell.
2. An expanding wall plug comprising:
an anchoring socket made from metal and adapted for mounting in a hole in a wall, having an outward flange raised around one end thereof, and a longitudinal through hole, said longitudinal through hole having a tapered outer end gradually increasing toward the outside;
a screw inserted through said anchoring socket, the screw having a head received in the tapered outer end of the longitudinal through hole of said anchoring socket;
a locating expansion shell sleeved onto said screw and abutted against one end of said anchoring socket, said expansion shell comprising two wedge blocks symmetrically raised from the periphery at one end, a plurality of circumferential ribs at an opposite end, and two opposite longitudinal slots cut through the ribs and extending to one end, the wedge blocks and longitudinal slots of said expansion shell being equiangularly spaced around the periphery;
an expansion tension shell mounted around said screw rod and connected to said locating expansion shell, said expansion tension shell comprising a tapered coupling portion at one end inserted into one end of said locating expansion shell, two wedge blocks symmetrically raised from said tapered coupling portion and respectively forced into the longitudinal slots of said locating expansion shell, a plurality of circumferential ribs at an opposite end, and the opposite longitudinal slots cut through the ribs of said expansion tension shell and extending to one end, the wedge blocks and the longitudinal slots of said expansion tension shell being equiangularly spaced around the periphery; and
a conical tightening up device mounted around said screw rod and forced forwards to squeeze said expansion tension shell and said locating expansion shell against said anchoring socket axially upon rotary motion of said screw rod, said conical tightening up device having a screw hole threaded onto said screw rod, and two wedge blocks symmetrically raised from the periphery and respectively forced into the longitudinal slots of said expansion tension shell.
3. The expanding wall plug of claim 1 wherein said screw rod has a plain rod section at one end connected to the head.
4. The expanding wall plug of claim 2 wherein said screw rod has a plain rod section at one end connected to the head.
US08/703,886 1996-08-27 1996-08-27 Expanding wall plug Expired - Fee Related US5702216A (en)

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Application Number Priority Date Filing Date Title
US08/703,886 US5702216A (en) 1996-08-27 1996-08-27 Expanding wall plug
GB9618145A GB2316728A (en) 1996-08-27 1996-08-30 Expanding wall plug
DE29615691U DE29615691U1 (en) 1996-08-27 1996-09-09 Wall expansion anchors

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US08/703,886 US5702216A (en) 1996-08-27 1996-08-27 Expanding wall plug
GB9618145A GB2316728A (en) 1996-08-27 1996-08-30 Expanding wall plug
DE29615691U DE29615691U1 (en) 1996-08-27 1996-09-09 Wall expansion anchors

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US5702216A true US5702216A (en) 1997-12-30

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Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU711823B3 (en) * 1998-02-19 1999-10-21 Dita Products (Proprietary) Limited Rock anchor
US6186695B1 (en) * 1995-09-23 2001-02-13 Hermann Kuster Dowels for securing objects to walls
US20030000350A1 (en) * 2001-06-28 2003-01-02 Mayo Foundation For Medical Education And Research Expandable screw apparatus and method thereof
US20030198529A1 (en) * 2002-04-23 2003-10-23 Warmolts Jeffrey C. Removable deep set drop-in anchor
US20060217717A1 (en) * 2005-03-24 2006-09-28 Dale Whipple Methods and devices for stabilizing a bone anchor
US20080050195A1 (en) * 2006-08-23 2008-02-28 Juergen Wieser Expansion dowel
US20090142156A1 (en) * 2007-11-29 2009-06-04 Itw Construction Products Italy S.R.L. Con Unico Socio Expansion anchor
US20090214315A1 (en) * 2008-02-22 2009-08-27 Mmi Management Services Lp Drop-in anchor for concrete structures
US20090248089A1 (en) * 2008-03-25 2009-10-01 Jacofsky Marc C Spinal facet fixation device
US20110038684A1 (en) * 2009-08-17 2011-02-17 Powers Fasteners, Inc. Anchor Bolt
US20110164942A1 (en) * 2008-07-16 2011-07-07 Nifco Inc. Screw grommet
US20110319946A1 (en) * 2009-03-12 2011-12-29 Levy Mark M Bone implantation and stabilization assembly including deployment device
US20120037576A1 (en) * 2009-02-17 2012-02-16 Adriaensens Aparicio Pablo Jose Device for fixing metallic structures to the floor
US20120128443A1 (en) * 2009-07-06 2012-05-24 Airbus Operations (S.A.S.) Device for mechanically linking at least two parts having coaxial bores
US20130185920A1 (en) * 2010-08-25 2013-07-25 Amir Peled Anchor device and method of use
US20140094860A1 (en) * 2012-10-02 2014-04-03 Alphatec Spine, Inc. Expandable screw and methods of use
CN105065407A (en) * 2015-08-16 2015-11-18 于国凡 Self-drilling pulling rivet
US20160053793A1 (en) * 2013-04-11 2016-02-25 Hilti Aktiengesellschaft Anchor
US20160053792A1 (en) * 2013-04-11 2016-02-25 Hilti Aktiengesellschaft Anchor with an expansion section and a cutting thread
CN107366667A (en) * 2017-08-04 2017-11-21 索菲亚家居股份有限公司 quick connector
CN107906101A (en) * 2017-12-15 2018-04-13 山东国创节能科技股份有限公司 A kind of grafting assembled wall body anchors swollen bolt
US10081315B2 (en) * 2017-02-20 2018-09-25 Yao-Huang Liu Positioning device for fixing vehicle registration plate on vehicle
US10112078B1 (en) * 2017-07-21 2018-10-30 VAF Industries, LLC Step assembly with fall arrest capability including removable step
CN108817796A (en) * 2018-06-27 2018-11-16 温州盛禾机械科技有限公司 Board shaft concentricity positioning tooling fixture and its welding procedure
US10172656B1 (en) 2017-09-15 2019-01-08 Alphatec Spine, Inc. Surgical screw
US10190613B2 (en) * 2014-08-26 2019-01-29 Kwikbolt Limited Removable blind fastener for joining components
CN110805463A (en) * 2019-11-29 2020-02-18 浙江聚能岩土锚固研究有限公司 Anchor rod shell head
US10823216B2 (en) * 2016-01-26 2020-11-03 Hilti Aktiengesellschaft Expansion anchor with clipped-open expansion part
FR3153114A1 (en) * 2023-09-20 2025-03-21 Airbus Operations (S.A.S.) Connecting device comprising an expandable sleeve and a conical nut, assembly comprising at least one such connecting device

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CN103836042A (en) * 2012-11-22 2014-06-04 程长青 Recyclable setscrew capable of being repeatedly assembled and disassembled
CN213929079U (en) * 2020-09-21 2021-08-10 漳州昊恒建材有限公司 High stability bolt coupling assembling

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1278025A (en) * 1917-08-02 1918-09-03 Claude C Salmons Expansion-bolt.
US1470423A (en) * 1922-07-11 1923-10-09 Walter L Brady Trolley-wire hanger
CH254174A (en) * 1947-02-28 1948-04-30 Hertach Jean Dowels.
US3181414A (en) * 1963-05-14 1965-05-04 Eastern Co Mine roof bolt expanding shells
DE3502607A1 (en) * 1985-01-26 1986-07-31 Wolfgang 7000 Stuttgart Kreikler Anchor, in particular load-dependent dowel
US4770581A (en) * 1984-03-01 1988-09-13 Dom Holdings Plc Expansion anchor
US4854793A (en) * 1984-12-05 1989-08-08 Societe De Prospection Et D'inventions Techniques Cone expansion wall plug

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB904899A (en) * 1958-08-16 1962-09-05 Bayliss Jones & Bayliss Ltd Improvements relating to anchor bolts
GB1020865A (en) * 1961-06-15 1966-02-23 Coal Industry Patents Ltd Improvements in anchor bolts
GB1045161A (en) * 1963-02-07 1966-10-12 Bayliss Jones & Bayliss Ltd Improvements relating to anchor bolts
ZA772338B (en) * 1976-04-29 1978-03-29 Itt Bolt anchor
DE3503450A1 (en) * 1984-06-22 1986-01-02 Decoletaje y Extrusion, S.A. (DESA), Hospitalet de Llobregat, Barcelona ANCHOR BOLT WITH EXPANDABLE SLEEVE
DE4123802A1 (en) * 1991-07-18 1993-01-21 Hilti Ag SPREADING DOWEL

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1278025A (en) * 1917-08-02 1918-09-03 Claude C Salmons Expansion-bolt.
US1470423A (en) * 1922-07-11 1923-10-09 Walter L Brady Trolley-wire hanger
CH254174A (en) * 1947-02-28 1948-04-30 Hertach Jean Dowels.
US3181414A (en) * 1963-05-14 1965-05-04 Eastern Co Mine roof bolt expanding shells
US4770581A (en) * 1984-03-01 1988-09-13 Dom Holdings Plc Expansion anchor
US4854793A (en) * 1984-12-05 1989-08-08 Societe De Prospection Et D'inventions Techniques Cone expansion wall plug
DE3502607A1 (en) * 1985-01-26 1986-07-31 Wolfgang 7000 Stuttgart Kreikler Anchor, in particular load-dependent dowel

Cited By (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6186695B1 (en) * 1995-09-23 2001-02-13 Hermann Kuster Dowels for securing objects to walls
AU711823B3 (en) * 1998-02-19 1999-10-21 Dita Products (Proprietary) Limited Rock anchor
US20030000350A1 (en) * 2001-06-28 2003-01-02 Mayo Foundation For Medical Education And Research Expandable screw apparatus and method thereof
US6668688B2 (en) * 2001-06-28 2003-12-30 Mayo Foundation Expandable screw apparatus and method thereof
US20030198529A1 (en) * 2002-04-23 2003-10-23 Warmolts Jeffrey C. Removable deep set drop-in anchor
US6666636B2 (en) * 2002-04-23 2003-12-23 Illinois Tool Works, Inc. Removable deep set drop-in anchor
AU2003203657B2 (en) * 2002-04-23 2004-07-15 Illinois Tool Works Inc. Removable deep set drop-in anchor
US20060217717A1 (en) * 2005-03-24 2006-09-28 Dale Whipple Methods and devices for stabilizing a bone anchor
US7857564B2 (en) * 2006-08-23 2010-12-28 Hilti Aktiengesellschaft Expansion dowel
US20080050195A1 (en) * 2006-08-23 2008-02-28 Juergen Wieser Expansion dowel
US20090142156A1 (en) * 2007-11-29 2009-06-04 Itw Construction Products Italy S.R.L. Con Unico Socio Expansion anchor
US8287217B2 (en) * 2007-11-29 2012-10-16 Itw Construction Products Italy S.R.L. Con Unico Socio Expansion anchor
US20090214315A1 (en) * 2008-02-22 2009-08-27 Mmi Management Services Lp Drop-in anchor for concrete structures
US20090248089A1 (en) * 2008-03-25 2009-10-01 Jacofsky Marc C Spinal facet fixation device
US10251689B2 (en) 2008-03-25 2019-04-09 The Center For Orthopedic Research And Education, Inc. Placement tool for bone screw assembly, and systems and methods of using same
US9072561B2 (en) 2008-03-25 2015-07-07 The Center For Orthopedic Research And Education, Inc. Spinal facet fixation device
US20110164942A1 (en) * 2008-07-16 2011-07-07 Nifco Inc. Screw grommet
US20120037576A1 (en) * 2009-02-17 2012-02-16 Adriaensens Aparicio Pablo Jose Device for fixing metallic structures to the floor
US9795428B2 (en) * 2009-03-12 2017-10-24 Expanding Orthopedics Inc. Bone implantation and stabilization assembly including deployment device
US20110319946A1 (en) * 2009-03-12 2011-12-29 Levy Mark M Bone implantation and stabilization assembly including deployment device
US8657543B2 (en) * 2009-07-06 2014-02-25 Airbus Operations S.A.S. Device for mechanically linking at least two parts having coaxial bores
US20120128443A1 (en) * 2009-07-06 2012-05-24 Airbus Operations (S.A.S.) Device for mechanically linking at least two parts having coaxial bores
US8192122B2 (en) * 2009-08-17 2012-06-05 Powers Fasteners, Inc. Anchor bolt
US20110038684A1 (en) * 2009-08-17 2011-02-17 Powers Fasteners, Inc. Anchor Bolt
US20130185920A1 (en) * 2010-08-25 2013-07-25 Amir Peled Anchor device and method of use
US20140094860A1 (en) * 2012-10-02 2014-04-03 Alphatec Spine, Inc. Expandable screw and methods of use
US9681905B2 (en) * 2012-10-02 2017-06-20 Alphatec Spine, Inc. Expandable screw and methods of use
US10695115B2 (en) * 2012-10-02 2020-06-30 Alphatec Spine, Inc. Expandable screw and methods of use
US20170245905A1 (en) * 2012-10-02 2017-08-31 Alphatec Spine, Inc. Expandable screw and methods of use
US20160053792A1 (en) * 2013-04-11 2016-02-25 Hilti Aktiengesellschaft Anchor with an expansion section and a cutting thread
US9677586B2 (en) * 2013-04-11 2017-06-13 Hilti Aktiengesellschaft Anchor
US20160053793A1 (en) * 2013-04-11 2016-02-25 Hilti Aktiengesellschaft Anchor
US10202998B2 (en) * 2013-04-11 2019-02-12 Hilti Aktiengesellschaft Anchor with an expansion section and a cutting thread
US10190613B2 (en) * 2014-08-26 2019-01-29 Kwikbolt Limited Removable blind fastener for joining components
CN105065407A (en) * 2015-08-16 2015-11-18 于国凡 Self-drilling pulling rivet
CN105065407B (en) * 2015-08-16 2017-08-25 于国凡 From brill pulling rivet
US10823216B2 (en) * 2016-01-26 2020-11-03 Hilti Aktiengesellschaft Expansion anchor with clipped-open expansion part
US10081315B2 (en) * 2017-02-20 2018-09-25 Yao-Huang Liu Positioning device for fixing vehicle registration plate on vehicle
US10112078B1 (en) * 2017-07-21 2018-10-30 VAF Industries, LLC Step assembly with fall arrest capability including removable step
CN107366667A (en) * 2017-08-04 2017-11-21 索菲亚家居股份有限公司 quick connector
US10172656B1 (en) 2017-09-15 2019-01-08 Alphatec Spine, Inc. Surgical screw
US11510715B2 (en) 2017-09-15 2022-11-29 Alphatec Spine, Inc. Surgical screw
CN107906101A (en) * 2017-12-15 2018-04-13 山东国创节能科技股份有限公司 A kind of grafting assembled wall body anchors swollen bolt
CN107906101B (en) * 2017-12-15 2024-03-26 山东国创节能科技股份有限公司 Plug-in assembled wall anchoring expansion bolt
CN108817796A (en) * 2018-06-27 2018-11-16 温州盛禾机械科技有限公司 Board shaft concentricity positioning tooling fixture and its welding procedure
CN110805463A (en) * 2019-11-29 2020-02-18 浙江聚能岩土锚固研究有限公司 Anchor rod shell head
FR3153114A1 (en) * 2023-09-20 2025-03-21 Airbus Operations (S.A.S.) Connecting device comprising an expandable sleeve and a conical nut, assembly comprising at least one such connecting device

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GB2316728A (en) 1998-03-04
DE29615691U1 (en) 1996-10-17
GB9618145D0 (en) 1996-10-09

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