GB2113744A - Filler socket for feeding hardenable compositions into anchors - Google Patents
Filler socket for feeding hardenable compositions into anchors Download PDFInfo
- Publication number
- GB2113744A GB2113744A GB08230457A GB8230457A GB2113744A GB 2113744 A GB2113744 A GB 2113744A GB 08230457 A GB08230457 A GB 08230457A GB 8230457 A GB8230457 A GB 8230457A GB 2113744 A GB2113744 A GB 2113744A
- Authority
- GB
- United Kingdom
- Prior art keywords
- filler socket
- socket
- hollow anchor
- filler
- anchor
- 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- Withdrawn
Links
- 239000000945 filler Substances 0.000 title claims abstract description 78
- 239000000203 mixture Substances 0.000 title claims abstract description 55
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 10
- 238000009423 ventilation Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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
- F16B13/14—Non-metallic plugs or sleeves; Use of liquid, loose solid or kneadable material therefor
- F16B13/141—Fixing plugs in holes by the use of settable material
- F16B13/146—Fixing plugs in holes by the use of settable material with a bag-shaped envelope or a tubular sleeve closed at one end, e.g. with a sieve-like sleeve, or with an expandable sheath
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Dowels (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A tubular filler socket, 2 for feeding a hardenable composition 5 into a sleeve-shaped hollow anchor 1 which has radial passage apertures 1d is closed at its front end 2a and has, on its generated surface, outlet apertures 2d which can be brought into register with the passage apertures 1d of the hollow anchor 1. The hardenable composition 5 may thus be distributed at will along the hollow anchor 1 and into a receiving zone of the material, in which it is desired to secure the anchor 1. <IMAGE>
Description
SPECIFICATION
Filler socket for feeding hardenable compositions into anchors
This invention relates to a tubular filler socket for feeding a hardenable single-component or multi-component composition into a sleeveshaped hollow anchor which has radial passage apertures, in which respect the filler socket has an outer contour which is intended for displaceable and sealing guidance in the hollow anchor.
A known hollow anchor is provided with several radial passage apertures which are distributed over its length. A hardenable composition is introduced by means of an axially-displaceable tubular filler socket, coordinated in outside diameter to the inside diameter of the hollow anchor, through the passage apertures of the hollow anchor into a borehole of a receiving material in which the anchor is located. The filler socket is thus guided telescopically in the hollow anchor, in which respect a sealing fit is effected by the coordination of the diameters.
At the commencement of the filling operation of the hardenable composition, merely front passage apertures of the hollow anchor are free, whilst rear passage apertures are closed by the filler socket. In this way the amount of hardenable composition desired in the region of the front passage apertures is pressed through the filler socket and the passage apertures in the hollow anchor into the borehole. In this respect, for example, along with displacement of the air contained in the borehole, the entire borehole can be filled from the front to the rear with the hardenable composition.
In the case of fairly long anchors, the expenditure of effort in squeezing out the hardenable composition in accordance with this method is very great as a result of the viscosity of the hardenable composition. Therefore, in the case of the known hollow anchor, the filler socket is drawnback further whereupon the rear passage apertures on the hollow anchor are successively exposed. The hardenable composition can then also be squeezed out through the rear passage apertures into the borehole. However, the front passage apertures on the hollow anchor remain exposed, even after the drawing back of the filler socket. Thus composition can continue to emerge from the filler socket through the front passage apertures into the borehole. The hardening composition flows, therefore, into those regions of the hollow anchor in which the least resistance is offered to it.Thus, in the case of partially porous receiving material which has cracks or hollow chambers, a considerable part of the hardenable composition can flow away in an uncontrolled manner. The introduction of a specific amount of hardenable composition therefore does not result in any guarantee of an adequate anchorage.
The problem underlying the invention is, therefore, to provide a filler socket which makes possible a predetermined distribution of the hardenable composition along a hollow anchor which has radial passage apertures.
In accordance with the present invention, this problem is solved in that the filler socket is closed at its forward frontal end and has on its generated surface outlet apertures which extend substantially radially and which can be brought into register with the passage apertures of the hollow anchor.
The filler socket in accordance with the invention is like prior art filler sockets drawnback from the anchor when the amount of hardenable composition necessary for the corresponding region has been squeezed out through the passage apertures of the hollow anchor into the borehole. In contrast to the prior art filler sockets in the frontally-closed filler socket of the present invention, advantageously the composition which has already been squeezed out is separated from the composition which is still in the filler socket.
Thus, in different zones of the borehole, the hardenable composition can be squeezed out under different pressure into the borehole. For example, in that region of the borehole which has cracks or hollow chambers, the squeezing-out pressure can be reduced and the amount of hardenable composition that is to be squeezed out can thereby be limited. "Per se" it is also possible to squeeze out with the same filler socket, in different zones of the borehole, different compositions, for example each having a hardening time of different length. Furthermore, in the case of hollow anchors which are provided with passage apertures over their entire length, the squeezing-out of the hardening composition can be effected only in predeterminable partial regions of the borehole.
The bringing of the outlet apertures of the filler socket into register with the passage apertures of the hollow anchor can be difficult. Even if the filler socket has the same number and the same distribution of the apertures on its periphery as the anchor, both the axial position and the rotary position of the filler socket relative to the hollow anchor have to agree. This means that additional means, such as guides, markings or the like, are necessary in order to indicate the rotary position of the two parts relative to one another. In order to avoid this, the outlet apertures advantageously open out into an encircling outwardly-open annular groove. As a result of the annular groove, the rotary position of the filler socket relative to the hollow anchor has no effect on the squeezingout of the hardenable composition.The width of the annular groove on the filler socket may be greater than the diameter of the passage apertures in the hollow anchor. In this way the overlap with the passage apertures is effected within a specific region. The axial position of the filler socket relative to the hollow anchor is variable without reducing the cross-section of passage within this limited region.
The squeezing-out of the hardenable composition may, for example, be effected by a known 'per se' dosing instrument. In this respect, as a rule an amount of hardenable composition which corresponds to the volume of the bore in the filler socket remains in the filler socket. Upon the hardening of the composition, the filler socket becomes unserviceable and has to be thrown away together with the composition contained therein. If, in the event of series-wise tamping of anchors, the same filler socket can be used several times, this is economically acceptable. The tamping of individual anchors at fairly large intervals is, however, a very expensive procedure.
In this case it is advantageous to provide an axially-displaceable squeezing-out piston which is coordinated to the inner contour of the filler socket. As a result of a relative displacement of the squeezing-out piston relative to the filler socket, the hardenable composition contained in the filler socket can be dislodged from the filler socket. This relative displacement may be effected by pushing the squeezing-out piston forward of the filler socket or by drawing the filler socket back with the squeezing-out piston stationary. If need be, a simultaneous combined movement of the filler socket and of the squeezing-out piston is also possible. After advancing of the squeezing-out piston in the filler socket has been completely effected, the filler socket is empty and can, even after a fairly long time, be filled again and be used afresh.In this way, above all for individual fastenings, the utilisation costs can be reduced considerably.
In order, upon the drawing-back of the filler socket in the hollow anchor, to avoid the occurrence of a vacuum and thereby a suckingback of composition already squeezed out into the hollow anchor but not yet hardened, a ventilation of the space which is present in front of the filler socket is advantageous. If the hollow anchor is closed at its front end, a separate ventilation aperture may be provided. An escape of hardenable composition through this ventilation aperture is prevented by the frontally-closed end of the filler socket.
Both the filler socket and possibly a squeezingout piston may be associated, as independent parts, with the hollow anchor or a dosing instrument for squeezing-out the hardenable composition. For series-wise tamping of anchors the same elements are usable several times. With the tamping of an individual anchor, it is a matter, as a rule, of elements which are usable only once.
The invention will be described further, by way of example, with reference to the accompanying drawings in which:
Fig. 1 is a part sectional elevation of a hollow anchor with a first preferred filler socket in accordance with the invention inserted completely into the anchor prior to the squeezing-out of hardenable composition from the filler socket;
Fig. 2 is a view similar to Fig. 1 but with the filler socket partially drawnback from within the anchor during the squeezing-out of the hardenable composition;
Fig. 3 is a view similar to Fig. 1 but with a further preferred filler socket in accordance with the invention, as well as a squeezing-out piston which has been inserted into the filler socket, as far as its end abutment, prior to the introduction of hardenable composition into the piston and socket;;
Fig. 4 is a view similar to Fig. 3 but with the filler socket filled with hardenable composition prior to the squeezing-out of the hardenable composition;
Fig. 5 is a cross-section along the line V-V of
Fig. 4; and
Fig. 6 is a view similar to Figs. 3 and 4 but with the filler socket partially drawnback in the anchor during the squeezing-out of the hardenable composition.
Evident from Figs. 1 and 2 is a sleeve-shaped hollow anchor which is designated as a whole by reference numeral 1 and which has, at its rearward end, a flange 1 a. A bore 1 b which extends axially substantially over the entire length of the hollow anchor 1 is provided, in its rearward region, with a thread 1 c. Emanating from the bore
1 b are radially-extending passage apertures 1 d which are distributed on the anchor's periphery substantially over its entire length. That end of the anchor 1 remote from the rearward end thereof, the so called closed end of the hollow anchor 1, is provided with a ventilation aperture 1 e. Guided so as to be axially displaceable in the bore 1 b of the hollow anchor 1 is a first preferred filler socket which is designated as a whole by reference numeral 2.In contrast to the hollow anchor 1, the filler socket 2 is completely closed at its forward front end 2a. At its rear end of the filler socket 2 has a collar 2b. A centrally-arranged longitudinal bore 2c extends substantially over the entire length of the filler socket 2. Radially-extending outlet apertures 2d emanate from the front end 2a of the longitudinal bore 2c. The outlet aperture 2d open out into an encircling outwardly-open annular groove 2e. The outlet apertures 2dor respectively the annular groove 2e can be brought into register with the passage apertures 1 d.
As illustrated in Fig. 1 ,the hollow anchor 1 is introduced into a receiving bore 4b, as far as the abutment of the flange 1 a, of a receiving material which is designated as a whole by reference numeral 4 and which has hollow chambers 4a.
The filler socket 2 is also inserted into the hollow anchor 1 as far as abutment of its front end 2a against the bottom of the bore 1 b. In this respect, the annular groove 2e is in register with the foremost passage apertures 1 d of the hollow anchor 1. The rear passage apertures 1 d of the hollow anchor 1 are, on the other hand, closed by the filler socket 2 or respectively do not communicate with the annular groove 2e.
Through the longitudinal bore 2c, the outlet apertures 2d, the annular groove 2e and the passage apertures 1 d, hardenable composition 5 of Fig. 2 can now be squeezed into the hollow chambers 4a of the receiving material 4. In this respect, along with simultaneous drawing-back in the anchor 1 of the filler socket 2 by means of the collar 2b, the hardenable composition 5 may be distributed in the desired manner along the hollow anchor 1. Thus, for example, in the case of homogeneous receiving material, the hardenable composition 5 may be distributed uniformly over the entire length. For receiving material 4 which has cracks (or gaps) or hollow chambers 4a, the hardenable composition 5 may also be squeezed out mainly in the region of the hollow chambers 4a and, in so doing, a form locking with the receiving material 4 can be achieved by the hardening composition 5.
Fig. 2 shows the filler socket 2 in accordance with the invention in its partially drawn-back position. In this respect, some of the hardenable composition 5 has been squeezed out of the socket 2 into the forward region and the rearward region of the hollow anchor 1 , whilst the middle region of the anchor 1 remains free of the hardenable composition 5. The hardenable composition 5 may, however, also be distributed over the entire length of the hollow anchor 1. The ventilation aperture 1 e on the forward end face of the hollow anchor 1 serves, upon the drawing-back of the filler socket 2, to allow air to flow into the bore 1 b and thus to prevent the occurrence of a vacuum, whereby a part of the squeezed-out and still not hardened composition 5 could be sucked back into the hollow anchor 1.
The hollow anchor evident from Figs. 3 to 6 and designated as a whole by reference numeral 11 differs from the anchor shown in Figs. 1 and 2 merely through the arrangement of passage apertures 11 d. The apertures 1 1d are, as shown in cross-section in Fig. 5, arranged so as to lie respectively opposite one another. The hollow anchor 11 has, at its rear end, an internal thread 11 c. A second preferred filler socket, designated as a whole by reference numeral 12, is closed at its front end 1 2a. The filler socket 1 2 is provided on its rearward end with a collar 1 2b so that it can be drawn back in the anchor 11. A tubular squeezing-out piston designated as a whole by reference numeral 13 is introduced into longitudinal bore 1 2c of the filler socket 12.
In the initial position of the hollow anchor 11 shown in Fig. 3, the squeezing-out piston 13 is pushed telescopically into the filler socket 12 and this is in turn pushed telescopically into the hollow anchor 11. The hollow anchor 11 butts, in this respect, by its flange 1 a against the surface of a receiving material 14. The receiving material 14 also has hollow chambers 1 4a and a receiving bore 1 4b which receives the hollow anchor 11.
The squeezing-out piston 1 3 is provided, at its rearward end, with a collar 1 3b so that it can be drawn-out of the filler socket 1 2.
As shown in Fig. 4, along with simultaneous drawing-back of the squeezing-out piston 13, hardenable composition 1 5 is introduced into the
longitudinal bore 1 2c of the filler socket 12 through borehole 1 3a of piston 13. As shown in
Fig. 5, in this respect the filler socket 12 is rotated relative to the hollow anchor 11, so that outlet apertures 1 2d and the passage apertures 11 dare mutually closed. An emergence of the hardenable composition 1 5 is thus still not possible. By relative rotation between the hollow anchor 11 and the filler socket 12, the outlet apertures 1 2d are brought into register with the passage apertures 11 d.Thus, through advancing of the squeezing-out piston 1 3 and/or simultaneous drawing-back of the filler socket 12, the hardenable composition 15 contained in the filler socket 12 may be squeezed out through the outlet apertures 1 2d and the passage apertures 11 d.
Fig. 6 shows the filler socket 12 and the squeezing-out piston 1 3 during the squeezing-out phase. In this respect, in the front region of the hollow anchor 11 , part of the composition 1 5 has already been squeezed out. Ventilation aperture 1 e at the front end face of the hollow anchor 11 serves, upon the drawing-back of the filler socket 12, to prevent the occurrence of a vacuum. In order to prevent a flow-back through the squeezing-out piston 1 3 upon the squeezing-out of the hardenable composition 1 5, a one-way valve may be incorporated in the piston 13.
Both the filler socket 12 and the squeezing-out piston 1 3 are usable several times with each time a complete squeezing-out. As a result of the relatively slight diameter of the through-bore 1 3a, in the event of a possible replacement of the squeezing-out piston 13, only a slight proportion of hardenable composition 1 5 is lost.
Claims (4)
1. A tubular filler socket for feeding a hardenable single-component or multi-component composition into a sleeve-shaped hollow anchor which has radial passage apertures, in which respect the filler socket has an outer contour which is intended for displaceable and sealing guidance in the hollow anchor, characterised in that the filler socket is closed at its forward front end and has, on its generated surface, outlet apertures which extend substantially radially and which can be brought into register with the passage apertures of the hollow anchor.
2. A filler socket as claimed in claim 1, characterised in that the outlet apertures open out into an encircling outwardly-open annular groove.
3. A filler socket as claimed in claim 1 or 2, characterised in that an axially-displaceable squeezing-out piston which is coordinated to the inner contour thereof is provided.
4. A tubular filler socket substantially as hereinbefore described with reference to and as illustrated in Figs. 1 and 2, or in Figs, 3 to 6.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813151611 DE3151611A1 (en) | 1981-12-28 | 1981-12-28 | "FILLING NOZZLE FOR CURABLE DIMENSIONS IN HOLLOW ARMERS" |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2113744A true GB2113744A (en) | 1983-08-10 |
Family
ID=6149864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08230457A Withdrawn GB2113744A (en) | 1981-12-28 | 1982-10-25 | Filler socket for feeding hardenable compositions into anchors |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH656194A5 (en) |
| DE (1) | DE3151611A1 (en) |
| FR (1) | FR2519097B1 (en) |
| GB (1) | GB2113744A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015013740A1 (en) * | 2013-07-29 | 2015-02-05 | Gazmick Pty Ltd | A grouted friction rock bolt |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3224820A1 (en) * | 1982-07-02 | 1984-01-05 | Hilti AG, 9494 Schaan | Sleeve-shaped hollow anchor |
| AU612641B2 (en) * | 1987-05-07 | 1991-07-18 | Gene Alfonse Falco | Masonry anchor |
| DE3800833C2 (en) * | 1988-01-14 | 1996-09-19 | Fischer Artur Werke Gmbh | Composite dowels |
| GB2244533B (en) * | 1990-04-30 | 1994-09-28 | David Patrick Payne | Fixing anchors in cavities |
| FR2701071B1 (en) * | 1993-02-01 | 1995-04-28 | Jacques Delooz | Fixing plug in a wall with addition of a hardenable material. |
| DE4409184C2 (en) * | 1994-03-17 | 1998-04-09 | Geodata Ges M B H | Extensometer |
| DE29815681U1 (en) | 1998-08-08 | 1998-12-10 | Schran-Bergbau-Baumaschinen-Bohrtechnik, 36266 Heringen | Mountain anchor system |
| DE10240801B4 (en) * | 2002-08-30 | 2006-05-24 | Ritter Gmbh | Device for setting injection plugs |
| DE102006060537A1 (en) * | 2006-12-21 | 2008-06-26 | Fischerwerke Gmbh & Co. Kg | Base elements device comprising concrete discharger with double-wall bore pipe |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1096848B (en) * | 1954-01-02 | 1961-01-12 | Veruschacht Vereinigte Unterta | Hollow, perforated rock anchor |
| DE1064887B (en) * | 1954-07-17 | 1959-09-03 | Mueller Ludwig | Process for the production of a composite pile for foundations and a steel driven pile for carrying out this process |
| US3240379A (en) * | 1964-03-18 | 1966-03-15 | Boeing Co | Adhesive passage plugs |
| US3283513A (en) * | 1964-12-23 | 1966-11-08 | Thomas W Kierans | Process of mounting elongated members in drill holes |
| US3492381A (en) * | 1966-12-19 | 1970-01-27 | Jeff S Rhyne | Fastening method |
| FR1539176A (en) * | 1967-08-03 | 1968-09-13 | Soletanche | Tie rod device intended to be anchored in the ground |
| GB1258328A (en) * | 1968-05-10 | 1971-12-30 | ||
| FR2117349A5 (en) * | 1970-12-04 | 1972-07-21 | Omnitechnic Gmbh | |
| DE2515950C3 (en) * | 1975-04-11 | 1979-12-20 | Ernst Peiniger Gmbh Unternehmen Fuer Bautenschutz, 4300 Essen | Fastening unit |
| DE2556493A1 (en) * | 1975-12-16 | 1977-06-30 | Alfons Harke | Adhesively fixed wall anchor bolt - uses helical web to influence adhesive flow behind outer sealing ring |
| DE2602433C2 (en) * | 1976-01-23 | 1984-09-20 | Fischer, Artur, 7244 Waldachtal | Anchoring a fastener |
| DE2838466C2 (en) * | 1978-09-04 | 1984-09-20 | Günther Bernack | Anchor sleeve for fastening in a blind hole in a component by means of an injection compound |
-
1981
- 1981-12-28 DE DE19813151611 patent/DE3151611A1/en active Granted
-
1982
- 1982-09-21 CH CH557282A patent/CH656194A5/en not_active IP Right Cessation
- 1982-10-25 GB GB08230457A patent/GB2113744A/en not_active Withdrawn
- 1982-12-23 FR FR8221649A patent/FR2519097B1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015013740A1 (en) * | 2013-07-29 | 2015-02-05 | Gazmick Pty Ltd | A grouted friction rock bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3151611C2 (en) | 1990-05-17 |
| DE3151611A1 (en) | 1983-07-07 |
| FR2519097B1 (en) | 1985-08-16 |
| CH656194A5 (en) | 1986-06-13 |
| FR2519097A1 (en) | 1983-07-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |