GB1495645A - Expansion dowel - Google Patents

Expansion dowel

Info

Publication number
GB1495645A
GB1495645A GB4842/75A GB484275A GB1495645A GB 1495645 A GB1495645 A GB 1495645A GB 4842/75 A GB4842/75 A GB 4842/75A GB 484275 A GB484275 A GB 484275A GB 1495645 A GB1495645 A GB 1495645A
Authority
GB
United Kingdom
Prior art keywords
socket
screw
threaded portion
rib
longitudinal
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.)
Expired
Application number
GB4842/75A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1495645A publication Critical patent/GB1495645A/en
Expired 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
    • 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
    • F16B13/061—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 of the buckling type

Abstract

1495645 Screw sockets P TOPHOLM 5 Feb 1975 [6 Feb 1974] 4842/75 Heading F2H An expansible screw socket 1 is a one-piece plastics moulding comprising a tubular body with an internally threaded portion 4 at one end and a head flange 6 at the other end, with sharp-edged longitudinal ribs 7 under the head flange 6, a respective longitudinal slot 2 aligned with each rib 7 extending from the rib to the screw-threaded portion 4 to divide the main body of the socket into a set of flexible longitudinal strips 3. The ribs 7 stiffen the socket portion next to the head 6 to prevent it from being axially compressed and radially expanded when the slotted portion is axially compressed and radially expanded by tightening of a screw (5) (Figs. 4-7, not shown) engaging the threaded portion 4, to prevent damage to the wall surface about a hole in which the socket is being secured. Each strip 3 has at least one longitudinal rib 8 on its radially outer surface, and is of generally triangular cross-section. The slots 2 are tapered off at the end adjacent the threaded portion 4.
GB4842/75A 1974-02-06 1975-02-05 Expansion dowel Expired GB1495645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK63374AA DK140383B (en) 1974-02-06 1974-02-06 Expansion dowel.

Publications (1)

Publication Number Publication Date
GB1495645A true GB1495645A (en) 1977-12-21

Family

ID=8095791

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4842/75A Expired GB1495645A (en) 1974-02-06 1975-02-05 Expansion dowel

Country Status (7)

Country Link
CA (1) CA1009069A (en)
DE (1) DE2504753A1 (en)
DK (1) DK140383B (en)
FR (1) FR2260017A1 (en)
GB (1) GB1495645A (en)
NL (1) NL7501440A (en)
SE (1) SE411472B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861206A (en) * 1986-11-26 1989-08-29 Tox-Dubel-Werk Richard M. Heckhausen GmbH & Co. KG Straddling plug
WO2004090351A1 (en) * 2003-04-08 2004-10-21 Creative Power Anstalt Pyramidal dowel
CN109386063A (en) * 2018-12-25 2019-02-26 江苏建筑职业技术学院 A kind of connection structure for wall insulated board
CN109386063B (en) * 2018-12-25 2024-04-30 江苏建筑职业技术学院 Connection structure for wall insulation board

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2371597A1 (en) * 1976-11-23 1978-06-16 Bassan Et Co Sa Expanding dowel for attaching objects to thin walls - has longitudinal slots to permit radial deformation when dowel bows outward
US4322194A (en) * 1979-09-12 1982-03-30 Coats & Clark, Inc. Wall anchor with self-drilling capability
US4563118A (en) * 1982-02-09 1986-01-07 Gunnar Liljedahl Expanding means
DE3907593A1 (en) * 1989-03-09 1990-09-20 Wuerth Adolf Gmbh & Co Kg SPREADING DOWEL

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4861206A (en) * 1986-11-26 1989-08-29 Tox-Dubel-Werk Richard M. Heckhausen GmbH & Co. KG Straddling plug
WO2004090351A1 (en) * 2003-04-08 2004-10-21 Creative Power Anstalt Pyramidal dowel
CN109386063A (en) * 2018-12-25 2019-02-26 江苏建筑职业技术学院 A kind of connection structure for wall insulated board
CN109386063B (en) * 2018-12-25 2024-04-30 江苏建筑职业技术学院 Connection structure for wall insulation board

Also Published As

Publication number Publication date
DK63374A (en) 1975-10-13
FR2260017A1 (en) 1975-08-29
DE2504753A1 (en) 1975-08-07
DK140383B (en) 1979-08-13
CA1009069A (en) 1977-04-26
NL7501440A (en) 1975-08-08
DK140383C (en) 1980-04-14
SE7501246L (en) 1975-08-07
SE411472B (en) 1979-12-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee