US3897925A - Wall plug - Google Patents

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US3897925A
US3897925A US421810A US42181073A US3897925A US 3897925 A US3897925 A US 3897925A US 421810 A US421810 A US 421810A US 42181073 A US42181073 A US 42181073A US 3897925 A US3897925 A US 3897925A
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Prior art keywords
sleeve member
end portion
supporting member
wall plug
supporting
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US421810A
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Max Mayer
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/02—Arrangement of mountings or supports for radiators
    • F24D19/024—Functioning details of supporting means for radiators
    • F24D19/025—Eccentric means for moving the radiator vertically
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/02—Arrangement of mountings or supports for radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/02—Arrangement of mountings or supports for radiators
    • F24D19/0203—Types of supporting means
    • F24D19/0206—Tube shaped supports inserted into a wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/20—Heat consumers
    • F24D2220/2009—Radiators
    • F24D2220/2054—Panel radiators with or without extended convection surfaces

Definitions

  • FIG-1 WALL PLUG This invention relates to wall plugs for supporting ob jects such as radiators, or the like, of the kind comprising a sleeve member having a front end portion and a longitudinally slotted rear end portion for insertion into a borehole of a wall, a supporting member adjacent the front end portion of said sleeve member, having an at least partly circumferential slot for accommodating an edge or the like of said object, a wedge member adjacent the rear end portion of said sleeve member, having a wedge shaped or conical surface for penetrating and expanding said sleeve member, and a screw member extending axially through said sleeve member and interconnecting said supporting member and said wedge member.
  • Wall plugs of this type are known wherein the supporting member is cylindrical and equal in diameter to the sleeve member. Owing to this configuration, it is possible to insert a wall plug of the kind described into a borehole of a wall up to the middle of its total length, for example, and then to place a radiator or similar heavy object on the portion of the sleeve member projectin g from the wall and to secure the radiator or some other object with additional securing means known in the art, retaining it in its position such that it extends at a certain distance from the wall, for example in par allel thereto.
  • the wall plug is pushed further into said borehole, or hammered into it, for example, while a lower edge of the radiator or other object originally resting on the sleeve member slides from the sleeve member to the supporting member and engages the circumferential slot of the supporting member.
  • the rear end portion of the sleeve member is ex panded in that either the screw member itself or a nut disposed at the front end portion of the screw member in front of the supporting member and bolted to the screw member is turned, causing the screw member to draw the wedge member into the rear end portion of said sleeve member.
  • the depth of the circumferential slot of the supporting member is very limited especially when the supporting member is not the head of the screw member at the same time, but is provided with an axial through bore through which the screw member extends.
  • a wall plug of the kind described is improved in that the supporting member has a first portion substantially greater in diameter than the sleeve member and a second portion separated from said first portion by said slot and tapering in rearward direction so as to attain a rear diameter substantially equal to the diameter of said sleeve member.
  • the maximum diameter of the supporting member according to the invention which is large in proportion to the external diameter of the sleeve member, allows to dispose a circumferential or partly circumferential slot of great radial depth at the supporting member in which the radiator or the like is securely supported.
  • the afore-mentioned second portion of the supporting member is conical or wedge-shaped and forms some kind of ramp.
  • FIG. 1 is a fragmentary sectional view in axial direction of a first embodiment of the wall plug
  • FIG. 2 is an axial sectional view of the front end por tion of a second embodiment of the wall plug
  • FIG. 3 is a side elevation of the front end portion of a third embodiment of the wall plug.
  • FIG. 4 is a front elevation of the wall plug shown in FIG. 3.
  • the main elements of the wall plug illustrated in FIG. 1 are a sleeve member 12. a supporting member l4, a wedge member 16 and a screw member 18.
  • the sleeve member 12 is made of sheet metal, for example galvanized sheet steel, and has a front end portion 20 as well as a rear end portion 22.
  • the rear end portion 22 is provided with at least one longitudinal slot 24; the illustrated embodiment is provided with two such slots diametrically opposed.
  • the slots 24 extend from the apex of a triangular recess 26 each disposed at the rear end portion 22 and end about midway of the total length of said sleeve member 12.
  • the supporting member 14 consists of plastic material, such as polyamide, and comprises a first portion 28, a second portion 30 and a third portion 32.
  • the first portion 28 is substantially cylindrical and is considerably greater in diameter than said sleeve member l2.
  • the second portion 30 has the same diameter as the first portion 28 only in the area of its front end and tapers in rearward direction in the manner of a frustum whose small base has a diameter identical with the external diameter of the sleeve member 12.
  • the third portion 32 of the supporting member 14 extends from the small base of the second portion 30 axially in rearward direction and snugly engages the front end portion 20 of the said sleeve member 12.
  • the first portion 28 is separated from the second portion 30 by a circumferential slot 34.
  • An axial through bore 36 extends through the entire supporting member 14.
  • the wedge member 16 is substantially cylindrical and has an external diameter which is just as great or only slightly smaller than that of the sleeve member 12.
  • the front section of the wedge member 16 is wedge-shaped and engages the recesses 26 at the rear end portion 22 of the sleeve member 12 which prevents it from rotating with respect to the sleeve member 12.
  • the front section of the wedge member 16 may be a frustum and the recesses 26 may be omitted.
  • a taphole axially extends through the wedge member 16.
  • the screw member 18 extends through the through bore 36 of the supporting member 14 and is screwed into the taphole of the wedge member 16.
  • the screw member 18 comprises at its front end portion a lenticular head 38 integral with said screw member, said heat bang accommodated in a corresponding indentation of the first portion 28 of the supporting member I4.
  • the screw member 18 could be provided with a thread at its front end portion, onto which thread a nut replacing the head 38 may be screwed.
  • the screw member I8 to be integral with the supporting member 14.
  • the supporting member 14, just as the screw member 18, is preferably made of steel or another metal alloy; the supporting member itself forming the head of the screw member 18.
  • the wall plug described, in the state illustrated in FIG. 1, can easily be inserted in a hole 42 drilled in a wall 40, the diameter of said hole 42 being somewhat greater than the outer diameter of the sleeve member 12.
  • a radiator 44 or some other object to be fastened to the wall 40 is placed on the portion of the sleeve member 12 projecting from the wall 40, as indicated in broken lines in FIG. 1.
  • the radiator 44 is then connected to the wall 40 with the aid of additional securing means (not illustrated) such as screws in such a manner that the space desired between the radiator 44 and the wall 40 can be determined while the radiator can still be moved perpendicularly.
  • the wall plug is pressed or hammered deeper into the borehole 42.
  • the lower edge of the radiator 44 then slides from the sleeve member 12 and onto the frustoconical second portion of the sup porting member 14 in upward direction until it engages the slot 34, as indicated in dash-dotted lines in FIG. 1.
  • the sleeve member l2 In the wall plug shown in FIG. 2, the sleeve member l2, the wedge member 16 and the screw member 18 are no different from the corresponding parts in FIG. 1. What is different is only the configuration of the supporting member which, for this reason, is designated 14' as a whole in FIG. 2. The individual parts of the supporting member 14' are numbered in the same manner as the corresponding parts of the supporting member 14 in FIG. I, but are also indexed, of course.
  • the first portion 28' in FIG. 2 is identical with the first portion 28 in FIG. 1. However, in contrast to the circumferential slot 34, the circumferential slot 34' is disposed excentrically.
  • the second portion 30' of the supporting member 14' has a smaller angle of opening and accordingly extends further back than the second portion 30 of the supporting member 14.
  • a lug 32' is provided in FIG. 3 extending from the bottom of an axial recess of the second portion 30' in rearward direction. Just as the third portion 32 in FIG. 1, the lug 32 engages the front end portion 20 of the sleeve member 18 substantially free from play; another difference in comparison with FIG.
  • the sleeve member 18 as such extends into the second portion 30'. This is a particularly safe way of preventing that the supporting member 14' tilts with respect to the supporting member 14.
  • the supporting member I4 is adapted to be rotatable with respect to the sleeve member 12 so that, owing to the excentricity of the slot 34', the height of a radiator 44 whose lower edge has engaged the slot 34', may be adjusted by turn 4 ing the supporting member 14'.
  • the wall plug illustrated in FIGS. 3 and 4 is only differentiated from the one shown in FIG. 1 in that the supporting member designated 14" there, has a partly cylindrical underside 46 being in alignment with the circumferential surface of the sleeve member 12.
  • a partly cylindrical additional re taining member 48 is provided at the underside of the wall plug.
  • the additional retaining member 48 is provided for giving additional support to certain types of radiator or for mounting additional apparatus, such as heat measuring devices.
  • A.wall plug for supporting objects comprising a sleeve member having a front end portion and a longitudinally slotted rear end portion for insertion into a borehole of a wall,
  • a supporting member mounted adjacent the front end portion of said sleeve member, having an at least .partly circumferential slot for accommodating an edge or the like of said object
  • a wedge memberadjacent the rear end portion of said sleeve member having a wedge-shaped or conical surface for penetrating and expanding said sleeve member
  • a screw member extending axially through said sleeve member and interconnecting said supporting member and said wedge member in which said supporting member has a first portion substantially greater in diameter than said sleeve member and a second portion separated from said first portion by said slot and tapering in rearward direction so as to attain a rear diameter substantially equal to the diameter of said sleeve member, the tapering part of said second portion forming a sliding surface over which the object being supported can move into the slot in said supporting member.
  • a wall plug as in claim 1 in which said supporting member has a third portion extending axially away in rearward direction from said second portion and en gaging the front end portion of said sleeve member.
  • a wall plug as in claim 1 in which the second portion of said supporting member has an axial recess accommodatingthe front end portion of said sleeve member, a lug extending axially away in rearward direction from the bottom of said recess and engaging the front end portion of said sleeve member.
  • a wall plug as in claim I in which the bottom of said circumferential slot in said supporting member is eccentrical with respect to the common longitudinal axis of said sleeve member and said screw member.

Abstract

A wall plug for supporting an object alongside a wall having a sleeve member with a wedge member on the end inserted in the wall, a supporting member with tapered shape and a circumferential slot within which the object is supported for the opposite end, and a screw member connecting the members on each of the ends of the plug.

Description

United States Patent Mayer Aug. 5, 1975 [541 WALL PLUG 3.700206 10/1972 Jones H 85/9 R [76] Inventor: Max Mayer, Ravensburger Str. 16, FORElGN ENTS 0R APPLICATIONS 78 M rk rf. Germany 471179 7/1952 Italy 85/28 Filed Dec 5 1973 747 649 [2/1966 Canada. 85/76 [2]] Appl. No.: 421,810 Primary E.\'aminerRoy D. Frazier Assixtan! Examiner-Robert A Hafer [52] U S C] 248/210 248/733 Attorney, Agent, or Firm-Karl W. Flocks [51] Int. Cl. E04G 3/00 [58] Field of Search 248/209, 71, 216, 232, [57] ABSTRACT 248/233' 234; 85/74 76 28v 9 R A wall plug for supporting an ObJfiCl alongside a wall having a sleeve member with a wedge member on the [56] Reierences Cited end inserted in the wall, a supporting member with ta- UNITED STATES PATENTS pered shape and a circumferential slot within which the object is supported for the opposite end. and a ga screw member connecting the members on each of the ep ey 4444 868,843 10/1907 Clay .7 248/216 ends of the plug 2.099.098 11/1937 Binkle i. 248/71 6 Claims, 4 Drawing Figures PATENTEU AUG 5 75 FIG-1 WALL PLUG This invention relates to wall plugs for supporting ob jects such as radiators, or the like, of the kind comprising a sleeve member having a front end portion and a longitudinally slotted rear end portion for insertion into a borehole of a wall, a supporting member adjacent the front end portion of said sleeve member, having an at least partly circumferential slot for accommodating an edge or the like of said object, a wedge member adjacent the rear end portion of said sleeve member, having a wedge shaped or conical surface for penetrating and expanding said sleeve member, and a screw member extending axially through said sleeve member and interconnecting said supporting member and said wedge member.
Wall plugs of this type are known wherein the supporting member is cylindrical and equal in diameter to the sleeve member. Owing to this configuration, it is possible to insert a wall plug of the kind described into a borehole of a wall up to the middle of its total length, for example, and then to place a radiator or similar heavy object on the portion of the sleeve member projectin g from the wall and to secure the radiator or some other object with additional securing means known in the art, retaining it in its position such that it extends at a certain distance from the wall, for example in par allel thereto. Subsequently, the wall plug is pushed further into said borehole, or hammered into it, for example, while a lower edge of the radiator or other object originally resting on the sleeve member slides from the sleeve member to the supporting member and engages the circumferential slot of the supporting member. Finally, the rear end portion of the sleeve member is ex panded in that either the screw member itself or a nut disposed at the front end portion of the screw member in front of the supporting member and bolted to the screw member is turned, causing the screw member to draw the wedge member into the rear end portion of said sleeve member.
It is desirable to provide as deep a circumferential slot as possible so that the radiator or other object to be supported by the wall plug is actually securely supported in the circumferential slot. On the other hand, it is desirable to use a sleeve member whose diameter is not unnecessarily large, for the greater the diameter of the sleeve member, the greater the hole required in the wall, of course, as well as the energy spent when drilling the hole. Moreover, the price of a wall plug of the type described is raised considerably with the increasing diameter of the sleeve member. At a given di ameter of the sleeve member, with known wall plugs, the depth of the circumferential slot of the supporting member is very limited especially when the supporting member is not the head of the screw member at the same time, but is provided with an axial through bore through which the screw member extends.
In accordance with the invention, a wall plug of the kind described is improved in that the supporting member has a first portion substantially greater in diameter than the sleeve member and a second portion separated from said first portion by said slot and tapering in rearward direction so as to attain a rear diameter substantially equal to the diameter of said sleeve member.
The maximum diameter of the supporting member according to the invention, which is large in proportion to the external diameter of the sleeve member, allows to dispose a circumferential or partly circumferential slot of great radial depth at the supporting member in which the radiator or the like is securely supported. The afore-mentioned second portion of the supporting member is conical or wedge-shaped and forms some kind of ramp. Thus, the radiator or other object, having first been placed on the sleeve member, during the mounting operation, when the wall plug is driven into the wall can slide up to the highest point of the supporting member, whereafter it engages the slot.
Other features and advantages of the invention will become apparent from the following description of three embodiments of the invention illustrated in the drawings, wherein:
FIG. 1 is a fragmentary sectional view in axial direction of a first embodiment of the wall plug;
FIG. 2 is an axial sectional view of the front end por tion of a second embodiment of the wall plug;
FIG. 3 is a side elevation of the front end portion of a third embodiment of the wall plug; and
FIG. 4 is a front elevation of the wall plug shown in FIG. 3.
The main elements of the wall plug illustrated in FIG. 1 are a sleeve member 12. a supporting member l4, a wedge member 16 and a screw member 18.
The sleeve member 12 is made of sheet metal, for example galvanized sheet steel, and has a front end portion 20 as well as a rear end portion 22. The rear end portion 22 is provided with at least one longitudinal slot 24; the illustrated embodiment is provided with two such slots diametrically opposed. The slots 24 extend from the apex of a triangular recess 26 each disposed at the rear end portion 22 and end about midway of the total length of said sleeve member 12.
The supporting member 14 consists of plastic material, such as polyamide, and comprises a first portion 28, a second portion 30 and a third portion 32. The first portion 28 is substantially cylindrical and is considerably greater in diameter than said sleeve member l2. The second portion 30 has the same diameter as the first portion 28 only in the area of its front end and tapers in rearward direction in the manner of a frustum whose small base has a diameter identical with the external diameter of the sleeve member 12. The third portion 32 of the supporting member 14 extends from the small base of the second portion 30 axially in rearward direction and snugly engages the front end portion 20 of the said sleeve member 12. The first portion 28 is separated from the second portion 30 by a circumferential slot 34. An axial through bore 36 extends through the entire supporting member 14.
The wedge member 16 is substantially cylindrical and has an external diameter which is just as great or only slightly smaller than that of the sleeve member 12. The front section of the wedge member 16 is wedge-shaped and engages the recesses 26 at the rear end portion 22 of the sleeve member 12 which prevents it from rotating with respect to the sleeve member 12. Alternatively, the front section of the wedge member 16 may be a frustum and the recesses 26 may be omitted. A taphole axially extends through the wedge member 16.
The screw member 18 extends through the through bore 36 of the supporting member 14 and is screwed into the taphole of the wedge member 16. In the embodiment illustrated, the screw member 18 comprises at its front end portion a lenticular head 38 integral with said screw member, said heat bang accommodated in a corresponding indentation of the first portion 28 of the supporting member I4. However, just as at its rear end portion, the screw member 18 could be provided with a thread at its front end portion, onto which thread a nut replacing the head 38 may be screwed. It is also possible for the screw member I8 to be integral with the supporting member 14. In this case, the supporting member 14, just as the screw member 18, is preferably made of steel or another metal alloy; the supporting member itself forming the head of the screw member 18.
The wall plug described, in the state illustrated in FIG. 1, can easily be inserted in a hole 42 drilled in a wall 40, the diameter of said hole 42 being somewhat greater than the outer diameter of the sleeve member 12. When about half the length of the sleeve member 12 has entered the hole 42, a radiator 44 or some other object to be fastened to the wall 40 is placed on the portion of the sleeve member 12 projecting from the wall 40, as indicated in broken lines in FIG. 1. The radiator 44 is then connected to the wall 40 with the aid of additional securing means (not illustrated) such as screws in such a manner that the space desired between the radiator 44 and the wall 40 can be determined while the radiator can still be moved perpendicularly.
Subsequently. the wall plug is pressed or hammered deeper into the borehole 42. The lower edge of the radiator 44 then slides from the sleeve member 12 and onto the frustoconical second portion of the sup porting member 14 in upward direction until it engages the slot 34, as indicated in dash-dotted lines in FIG. 1.
In the wall plug shown in FIG. 2, the sleeve member l2, the wedge member 16 and the screw member 18 are no different from the corresponding parts in FIG. 1. What is different is only the configuration of the supporting member which, for this reason, is designated 14' as a whole in FIG. 2. The individual parts of the supporting member 14' are numbered in the same manner as the corresponding parts of the supporting member 14 in FIG. I, but are also indexed, of course.
The first portion 28' in FIG. 2 is identical with the first portion 28 in FIG. 1. However, in contrast to the circumferential slot 34, the circumferential slot 34' is disposed excentrically. The second portion 30' of the supporting member 14' has a smaller angle of opening and accordingly extends further back than the second portion 30 of the supporting member 14. Instead of the third portion 32 provided in line with FIG. 2, a lug 32' is provided in FIG. 3 extending from the bottom of an axial recess of the second portion 30' in rearward direction. Just as the third portion 32 in FIG. 1, the lug 32 engages the front end portion 20 of the sleeve member 18 substantially free from play; another difference in comparison with FIG. I is, though, that the sleeve member 18 as such extends into the second portion 30'. This is a particularly safe way of preventing that the supporting member 14' tilts with respect to the supporting member 14. The supporting member I4, however, is adapted to be rotatable with respect to the sleeve member 12 so that, owing to the excentricity of the slot 34', the height of a radiator 44 whose lower edge has engaged the slot 34', may be adjusted by turn 4 ing the supporting member 14'.
The wall plug illustrated in FIGS. 3 and 4 is only differentiated from the one shown in FIG. 1 in that the supporting member designated 14" there, has a partly cylindrical underside 46 being in alignment with the circumferential surface of the sleeve member 12. Thus it is possible. to secure a partly cylindrical additional re taining member 48 at the underside of the wall plug. The additional retaining member 48 is provided for giving additional support to certain types of radiator or for mounting additional apparatus, such as heat measuring devices.
What I claim is:
I. A.wall plug for supporting objects, such as radiators or the like, comprising a sleeve member having a front end portion and a longitudinally slotted rear end portion for insertion into a borehole of a wall,
a supporting member mounted adjacent the front end portion of said sleeve member, having an at least .partly circumferential slot for accommodating an edge or the like of said object,
a wedge memberadjacent the rear end portion of said sleeve member, having a wedge-shaped or conical surface for penetrating and expanding said sleeve member, and
a screw member extending axially through said sleeve member and interconnecting said supporting member and said wedge member in which said supporting member has a first portion substantially greater in diameter than said sleeve member and a second portion separated from said first portion by said slot and tapering in rearward direction so as to attain a rear diameter substantially equal to the diameter of said sleeve member, the tapering part of said second portion forming a sliding surface over which the object being supported can move into the slot in said supporting member.
2. A wall plug as in claim 1 in which said supporting member has a third portion extending axially away in rearward direction from said second portion and en gaging the front end portion of said sleeve member.
3. A wall plug as in claim 1 in which the second portion of said supporting member has an axial recess accommodating the front end portion of said sleeve member.
4. A wall plug as in claim 1 in which the second portion of said supporting member has an axial recess accommodatingthe front end portion of said sleeve member, a lug extending axially away in rearward direction from the bottom of said recess and engaging the front end portion of said sleeve member.
5. A wall plug as in claim I in which the bottom of said circumferential slot in said supporting member is eccentrical with respect to the common longitudinal axis of said sleeve member and said screw member.
6. A wall plug as in claim 1 in which said supporting member has a partly cylindrical underside being in alignment with the circumferential surface of said sleeve member.

Claims (6)

1. A wall plug for supporting objects, such as radiators or the like, comprising a sleeve member having a front end portion and a longitudinally slotted rear end portion for insertion into a borehole of a wall, a suppoRting member mounted adjacent the front end portion of said sleeve member, having an at least partly circumferential slot for accommodating an edge or the like of said object, a wedge member adjacent the rear end portion of said sleeve member, having a wedge-shaped or conical surface for penetrating and expanding said sleeve member, and a screw member extending axially through said sleeve member and interconnecting said supporting member and said wedge member in which said supporting member has a first portion substantially greater in diameter than said sleeve member and a second portion separated from said first portion by said slot and tapering in rearward direction so as to attain a rear diameter substantially equal to the diameter of said sleeve member, the tapering part of said second portion forming a sliding surface over which the object being supported can move into the slot in said supporting member.
2. A wall plug as in claim 1 in which said supporting member has a third portion extending axially away in rearward direction from said second portion and engaging the front end portion of said sleeve member.
3. A wall plug as in claim 1 in which the second portion of said supporting member has an axial recess accommodating the front end portion of said sleeve member.
4. A wall plug as in claim 1 in which the second portion of said supporting member has an axial recess accommodating the front end portion of said sleeve member, a lug extending axially away in rearward direction from the bottom of said recess and engaging the front end portion of said sleeve member.
5. A wall plug as in claim 1 in which the bottom of said circumferential slot in said supporting member is eccentrical with respect to the common longitudinal axis of said sleeve member and said screw member.
6. A wall plug as in claim 1 in which said supporting member has a partly cylindrical underside being in alignment with the circumferential surface of said sleeve member.
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Cited By (1)

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Publication number Priority date Publication date Assignee Title
US4747737A (en) * 1983-11-03 1988-05-31 Spiro Research B.V. Fixing device for mounting objects on supports

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US451213A (en) * 1891-04-28 Grantille t
US868843A (en) * 1906-09-07 1907-10-22 Wellington S Clay Metallic cross-arm for telegraph or telephone poles.
US2099098A (en) * 1935-11-29 1937-11-16 Kearney James R Corp Bracket for electrical wires
US3700206A (en) * 1971-04-15 1972-10-24 Henry Valve Co Valve assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US317090A (en) * 1885-05-05 Lasting-tack
US451213A (en) * 1891-04-28 Grantille t
US868843A (en) * 1906-09-07 1907-10-22 Wellington S Clay Metallic cross-arm for telegraph or telephone poles.
US2099098A (en) * 1935-11-29 1937-11-16 Kearney James R Corp Bracket for electrical wires
US3700206A (en) * 1971-04-15 1972-10-24 Henry Valve Co Valve assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4747737A (en) * 1983-11-03 1988-05-31 Spiro Research B.V. Fixing device for mounting objects on supports

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