Abstract: A method and device for drilling, particularly percussion drilling or rotary percussion drilling a hole in soil or rock material and fixing an anchoring in the hole. To this end, a drilled hole is made by a drill bit mounted on a drill rod. The drill rod, on the rear side facing away from the drilling surface of the drill bit, is surrounded at a distance from the drill bit by an anchoring element whose outside dimension exceeds, at least in part, the circumference of the drilled hole made by the drill bit.

Abstract: Disclosed is a connection between two pipes (1, 2) in which a final section of one pipe overlaps a final section of the other pipe or one respective joining element (3, 4) is inserted into the facing final sections of the pipes (1, 2). The pipes (1, 2) can be screwed together. The final section of the pipe that is overlapped by the other pipe, or at least one joining element (3, 4) that is inserted into a final section (3, 4), is embodied with an area (18, 19) having a lower rigidity than the adjoining subarea at the end facing the interior of the pipe. Said area (18, 19, 30) having a reduced rigidity is embodied with a least one depression or recess (20, 21, 21?, 31) on the inner circumference thereof, whereby one is able to ensure that the pipes (1, 2) that are to be interconnected remain undamaged if the same are tilted or inclined relative to each other, even in case forces act eccentrically upon the pipe connection.

Abstract: The invention relates to a method and a device for releasing a block or blockage on a bore-crown or drill bit (1) during a boring process, especially percussion boring or rotary percussion boring or drilling, for boring holes in the ground or rock, whereby a borehole is formed by a bore-crown (1) mounted on a boring rod or a drill rod assembly (2) and connected thereto and acted upon by the boring rod to generate a rotational movement and optionally a percussive movement.

Abstract: The invention relates to a method and device for drilling, particularly percussion drilling or rotary percussion drilling a hole in soil or rock material and fixing an anchoring in the hole. To this end, a drilled hole is made by a drill bit (3) mounted on a drill rod (2). According to the invention, the drill rod (2), on the rear side facing away from the drilling surface (5) of the drill bit (3), is surrounded at a distance from the drill bit (3) by an anchoring element (4) whose outside dimension exceeds, at least in part, the circumference of the drilled hole made by the drill bit (3) whereby enabling a constructively easier and more reliable securing of the anchoring inside the drilled hole.

Abstract: A method and device for boring, particularly percussion boring or rotary percussion boring, a hole in soil or rock material and for forming an anchoring. A borehole is formed by inserting a drill bit, and a casing tube is placed inside the borehole during the boring process. Once the borehole is completed, the boring rods are detached from the drill bit and removed from the borehole. The periphery of the casing tube is provided with a number of passage openings for discharging hardenable material. A tensioning device for the anchor, particularly an anchor plate and a screw that can be screwed onto the casing tube, can be fixed to the end of the casing tube protruding from the borehole. Anchoring or fixing elements for anchoring the casing tube on the surrounding inner wall of the borehole are provided, in particular, on the end area of the casing tube oriented toward the drill bit.

Abstract: The invention relates to a method and device for the drilling, in particular the percussive drilling or rotary percussive drilling of holes (9) in the ground or in rock, a bore hole (9) being formed by a drill bit (1) that is mounted on a drill pipe (3), by a percussive and/or rotary movement. Several drill points (2), which can be coupled to the drill pipe (3) and driven independently of one another, are provided on the drill bit (1). According to the invention, the drill points (2) can be uncoupled from their rigid coupling to the drill pipe (3) upon completion of the drilling process and can be displaced towards the centre of the bore hole (9), thus permitting the entire drill bit (1) together with the drill points (2) and the drill pipe (3) to be simply and reliably removed upon completion of the bore hole (9).

Abstract: A method and device for boring a hole in soil or rock material and for forming an anchoring are disclosed. A borehole is formed by inserting a drill bit, and tensioning elements coupled to the drill bit are introduced into the borehole. After completion, the boring rods are detached from the drill bit and removed. The boring rods are provided with a hollow space in its longitudinal direction to introduce a hardenable fluid into the borehole. Anchoring or fixing elements for anchoring on the borehole's inner wall are provided on the drill bit at the end opposite the drilling surface and/or on the tensioning elements. The tensioning elements are subjected to a turning or twisting whereby shortening their effective length for tensioning or centering so that a centering and an optionally temporary tensioning of the tensioning elements can be effected before the hardenable material completely hardens.

Abstract: In a method and device for drilling, in particular percussion drilling or rotary percussion drilling, holes in soil or rock material, wherein a borehole is formed by a percussive and/or rotational movement carried out by a drill bit (1) mounted on a drill rod assembly (4) and an envelope tube and/or a jacket tube (15, 18) is introduced into the borehole, it is provided that the impact energy introduced by the drill rod assembly (4) is transmitted partially, particularly centrally, by the drill rod assembly (4) onto the drill bit (1) and partially via an impact shoe (10) cooperating with the drill rod assembly (4) onto the envelope and/or jacket tubes (15, 18), thus enabling the reliable introduction of the excavation or impact energy into the drill bit (1) as well as into the envelope and/or jacket tubes (15, 18).

Abstract: In a method and device for boring or drilling, in particular percussion drilling or rotary percussion drilling, holes in soil or rock, wherein a borehole is formed by a percussive and/or rotary movement carried out by a drill bit (2) mounted on a drill rod assembly (3) and a jacket tube (6) coupled with the drill bit (2) is introduced into the borehole, it is provided that the jacket tube (6) is received in a socket (5) provided on the end facing away from the drill bit working surface, of an envelope tube (4) coupled with the drill bit (2), and that the jacket tube (6) is subjected to a percussive and/or compressive stress on its end facing away from the drill bit, whereby directionally precise boring or drilling is rendered feasible.

Abstract: The invention relates to a method and device for the drilling, in particular the percussive drilling or rotary percussive drilling of holes (9) in the ground or in rock, a bore hole (9) being formed by a drill bit (1) that is mounted on a drill pipe (3), by a percussive and/or rotary movement. Several drill points (2), which can be coupled to the drill pipe (3) and driven independently of one another, are provided on the drill bit (1). According to the invention, the drill points (2) can be uncoupled from their rigid coupling to the drill pipe (3) upon completion of the drilling process and can be displaced towards the centre of the bore hole (9), thus permitting the entire drill bit (1) together with the drill points (2) and the drill pipe (3) to be simply and reliably removed upon completion of the bore hole (9).

Abstract: The invention concerns a method and device for boring, particularly percussion boring or rotary percussion boring, a hole (2) in soil or rock material and for forming an anchoring. According to the invention, a borehole (2) is formed by inserting a drill bit (4), and tensioning elements (10) coupled to the drill bit (4) are introduced into the borehole (2) during the boring process; Once the borehole (2) is completed, the boring rods (5) are detached from the drill bit (4) and removed from the borehole (2). The boring rods (5) are provided with a hollow space (22) extending essentially in the longitudinal direction of the boring rods (5) and serving to introduce a hardenable fluid into the borehole (2) as the boring rods (5) are removed from the borehole (2). Anchoring or fixing elements (14) for anchoring on the inner wall of the borehole are provided on the drill bit (4) at the end opposite the drilling surface and/or on the tensioning elements (10).

Abstract: The invention concerns a method and device for boring, particularly percussion boring or rotary percussion boring, a hole (2) in soil or rock material and for forming an anchoring. According to the invention, a borehole (2) is formed by inserting a drill bit (4), and a casing tube (7) is placed inside the borehole (2) during the boring process. Once the borehole (2) is completed, the boring rods (5) are detached from the drill bit (4) and removed from the borehole (2). The periphery of the casing tube (7) is provided with a number of passage openings (23) for discharging hardenable material. A tensioning device (13, 14) for the anchor, particularly an anchor plate and a screw that can be screwed onto the casing tube (7), can be fixed to the end of the casing tube (7) protruding from the borehole (2).

Abstract: In a method and device for drilling, in particular percussion drilling or rotary percussion drilling, holes in soil or rock material, wherein a borehole is formed by a percussive and/or rotational movement carried out by a drill bit (1) mounted on a drill rod assembly (4) and an envelope tube and/or a jacket tube (15, 18) is introduced into the borehole, it is provided that the impact energy introduced by the drill rod assembly (4) is transmitted partially, particularly centrally, by the drill rod assembly (4) onto the drill bit (1) and partially via an impact shoe (10) cooperating with the drill rod assembly (4) onto the envelope and/or jacket tubes (15, 18), thus enabling the reliable introduction of the excavation or impact energy into the drill bit (1) as well as into the envelope and/or jacket tubes (15, 18).

Abstract: In a method and device for boring or drilling, in particular percussion drilling or rotary percussion drilling, holes in soil or rock, wherein a borehole is formed by a percussive and/or rotary movement carried out by a drill bit (2) mounted on a drill rod assembly (3) and a jacket tube (6) coupled with the drill bit (2) is introduced into the borehole, it is provided that the jacket tube (6) is received in a socket (5) provided on the end facing away from the drill bit working surface, of an envelope tube (4) coupled with the drill bit (2), and that the jacket tube (6) is subjected to a percussive and/or compressive stress on its end facing away from the drill bit, whereby directionally precise boring or drilling is rendered feasible.

Abstract: A method and a device for the drilling, in particular the percussive or percussive rotary drilling of a hole in earth or rock and for securing an anchorage in the hole. A bore hole is created by a drill bit mounted on a drill pipe and a sliding sleeve that surrounds the drill pipe at a distance is simultaneously introduced. A sliding sleeve configured with a longitudinal slit is introduced at least partially and rests substantially against the bore hole during the drilling, whereby a reliable anchorage can be achieved with a simple construction by the sliding sleeve with a longitudinal slit.

Abstract: In a method and device for drilling, in particular impact drilling or rotary percussion drilling, a hole in soil or rock material and forming an anchorage in the hole, wherein a bore hole is formed by the introduction of a drill bit, it is provided that the drill rod assembly of the drilling device includes at least one expandable element having at least one hollow space extending substantially in the longitudinal direction of the bore for introducing a fluid under pressure to at least partially widen the outer periphery of the expandable element, and/or the drill rod assembly is connected with at least one expandable element each including at least one hollow space substantially extending in the longitudinal direction of the bore for introducing a fluid under pressure to widen the outer periphery, thus ensuring a safe anchorage by the expansion of the expandable elements both over the periphery and over the length of the device at a simplified overall construction.

Abstract: In a device for connecting two substantially rod- or tube-shaped elements (1), for instance parts of a rod assembly of a drilling device and/or a rod assembly element (1) with a drill bit (2) or a drill head, wherein the elements to be connected are each designed to comprise a male end and a complementary female end or contiguous ends are each overlapped by a bushing or sleeve (5), it is provided that, on the female end or sleeve (5), respectively, at least one partial region (6) capable of being shifted towards the female end substantially in the radial direction of the connection, and/or pressed in, is engagingly fixed in a complementary recess or depression (10) provided on the male end (9), thus making available a connection between tube-shaped elements (1), which is easy to produce, particularly without requiring any mutual rotation of the elements (1) in order to obtain the connection.

Abstract: A drill crown (1) used for drilling purposes, especially for rotary percussion drilling of a mouth of a blast furnace. The drill crown (1) consists of a drilling head (4) provided with a plurality of hard material or hard metal inserts (6) and a base body (2) for connection to a drive element etc. in order to drive or impinge upon said drill crown. The hard material or hard metal inserts (6) are received in bores or openings (5) of the drill head (4). According to the invention, at least one hard material or hard metal insert (6) is provided with an at least partially curved or domed surface contour (11) on the end which is received in the drill head (4). Said contour cooperates with a complementary domed or curved surface of the drill head (4) and/or base body (2), whereby the percussive energy required for appropriate drilling power is transmitted in a reliable manner, even when the hard material or hard metal insert (6) is slackened.

Abstract: In a method and an arrangement for the rapid connection and detachment of connectable elements (4, 6), particularly tubes or rods and/or driving elements and/or working elements capable of being fixed thereto such as, for instance, drill bits or the like, wherein an element (4) having a profiled end piece (9) is introduced into a respective reception opening (11) of the element (6) to be connected therewith and/or an intermediate or connection piece (7), particularly a bushing or sleeve, and connected with the second element (6) in a positive and force-transmitting manner, it is provided that, for the connection and detachment of the two elements (4, 6) to be connected, the profiled end piece (9) after a movement in the axial or connection direction (12) is rotated, by a partial region (15) of the reception opening (11) provided with a profile complementary to that of the end piece, relative to the reception opening (11) in a partial region (13) of the reception opening (11) having an enlarged clear cross sec

Abstract: In a method and device for drilling, in particular impact drilling or rotary percussion drilling, a hole in soil or rock material and forming an anchorage in said hole, wherein a bore hole is formed by the introduction of a drill bit (2), it is provided that the drill rod assembly of the drilling device is comprised of at least one expandable element (3, 4) having at least one hollow space extending substantially in the longitudinal direction of the bore for introducing a fluid under pressure to at least partially widen the outer periphery of the expandable element (3, 4), and/or the drill rod assembly is connected with at least one expandable element (3, 4) each including at least one hollow space substantially extending in the longitudinal direction of the bore for introducing a fluid under pressure to widen the outer periphery, thus ensuring a safe anchorage by the expansion of the expandable elements (3, 4) both over the periphery and over the length of the device at a simplified overall construction.