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WO/1993/023211A1 |
The invention pertains to a process and device for actuating a percussive tool by means of a free piston (4) which is moved back and forth with compressed air, to a device for carrying out the process and to a hammer drill and a crushing...
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WO/1993/019915A1 |
A tool stand (106) has at least one base (12) that carries at least one vertical guidebeam (18). A sliding carriage (28) is slidingly guided on this vertical guidebeam (18) and carries in turn another guidebeam (18''). A stone borer or a...
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WO/1993/016845A1 |
A powered hand tool (1) is described comprising a motor (7), in particular an electric motor, which is mounted in a housing (3), and a gear (9), in particular one with a speed control (21, 22), in which an electrical conductor (19) leads...
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WO/1993/015863A1 |
The device is designed for switching the revolutions of electrical, two-speed, percussion and reversible drilling machines. A high switching reliability in idle as well as in motion time is achieved. The device is possessing a simplified...
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WO/1993/007995A1 |
In order to synchronize switching from drilling to chiselling and vice-versa in a drilling and chiselling hammer, an axially movable sleeve (25) is capable of acting on spring-loaded switching members, i.e. a toothed wheel (16) and a ret...
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WO/1993/005929A1 |
A device fitted on hand power tools to transmit a rotary and/or percussive movement to a tool (22) has two or three rotary drivers (14) in rotation-symmetrical array. These drivers (14) are stepped so that side sections (16) running radi...
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WO/1993/003877A1 |
Device for fixing and locking a tool such as a pneumatic drill on a support or grid on which are mounted sockets. According to the invention, fixing of the tool is provided by rotation of a crown (1) and penetration of fingers (2) of the...
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WO/1993/003286A1 |
The invention relates to a device for temporarily applying holding or securing means (2) to a surface (7) and a relevant process. The surface (7) may be uneven and/or inclined. The device consists of a fitting equipped with a vacuum lead...
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WO/1993/001027A1 |
A percussion drill (3) has a three-part hammer sleeve (6). A hardened tool holder (8) is secured by axial connectors (24, 25, 28) to a guide tube (7) of unhardened steel. The guide tube (7) also has a locking ring (9) for securing to the...
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WO/1993/000201A1 |
A drill hammer has a percussion mechanism (5) driven by a reciprocating drive member (7) tiltable about an axis (16). In order to transmit this movement to a striker (24) there is a flexible drive composant (15) which can tilt about an a...
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WO/1992/021469A1 |
An attachment for a drive shaft of a drill or like rotary tool is provided. The attachment comprises two tool bit holding means (1, 3), one (1) being for connecting with the drive shaft (7) and for holding one tool bit (17) and the other...
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WO/1992/018291A1 |
The invention concerns a hand-held power tool in which the tool attachment is driven to rotate and in which the tool attachment is cut off from the drive if it jams suddenly. In order to detect the occurrence of a jam, the invention make...
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WO/1992/013672A1 |
Described is a guide rail for a hand-held power tool, e.g. a hand-held circular saw, the guide being designed to be clamped on a workpiece. The guide has a slide surface (17) and a longitudinal ridge (11) projecting up beyond the slide s...
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WO/1992/006823A1 |
A device for transmitting a rotary or striking movement to a tool (1) is designed in such a way that the associated tools with three dynamically balanced grooves (7) may also be clamped in drill chucks with three clamping jaws. The limit...
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WO/1991/013728A1 |
An underfloor drilling jig comprises a fixed outer frame (28) and an inner frame which slides within. A standard electric drill (10) is clamped to this inner frame in a vertical position with an angled gearbox (11) attached below. An adj...
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WO/1991/012116A1 |
In order to design a hand-held machine tool, intended in particular for drilling, percussion drilling, sawing and chipping, and including a work shaft and a drive with a preferably electric motor, so that the machine tool can be used for...
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WO/1991/008074A1 |
In a device for releasable connection of two members (2, 8) co-operating wedge surfaces (12, 17 and 13 respectively) are provided on said members. A first member (2) comprises two tightening means (14, 16) arranged to actuate the second ...
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WO/1991/004815A1 |
A drilling jig for assisting correct boring of pipe holes through joists and the like has an elongate box section body (14) having a shaft connectible to a portable rotary power tool (12) at one end and a drill chuck (18) at the other. A...
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WO/1991/001837A1 |
A boring machine includes a power unit (10) having a housing (100), a drive member (118) for engaging a boring bar (14), and a motor (117) for driving the drive member (118) to rotate relative to the housing (100). The boring machine als...
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WO/1990/014929A1 |
A drill or percussion tool. In a percussion tool with a pneumatic percussion gear which may be switched on by pressing the percussion tool against the point to be processed, the effectiveness of the switching device is to be improved and...
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WO/1990/014199A1 |
A mobile power tool operating assembly (10) for performing material treatment of operations, such as drilling, has permanent magnet means (20) to mount the power tool (16) on a ferromagnetic workpiece (22), and release means (24) to perm...
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WO/1990/013385A1 |
The invention is an axially moveable portable tool, such as a drill (1), and a guide (10) usable together for cutting. The tools and guides in use often slip or tilt and require complicated assembly. The tool (1) is provided with a gripp...
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WO/1990/001400A1 |
A hammer drill or concrete breaker with idling control comprises a simplified percussion tool and an additional rotary drive. The guide tube (6) of the percussion tool (3) comprises an idling control orifice (14) which is closed, during ...
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WO/1989/011955A1 |
Conventional drilling hammers can indeed be used for drilling and percussive drilling, but not for chiselling. Until now, cumbersome chiselling attachments have been used for this purpose. The aim was therefore to obtain a drilling hamme...
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WO/1989/007997A1 |
A dual-mode system for operating electrically powered devices (10), such as hand-held power tools and appliances, includes a cordless battery pack (25) that supplies the power and current demands of the device (10) in a cordless mode or ...
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WO/1989/005714A1 |
A portable machine tool device (1) which may be transported in knocked down form in a substantially flat case. In assembled form the device (1) includes a support frame (8) and a swinging parallelogram linkage frame (9) which pivots abou...
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WO/1989/004228A2 |
An airfeed peck drill includes a substantially cylindrical drill quill contained within a cylinder in a housing. On the rear end of the drill quill is located an offset piston, the offset piston provides force for the entry and exit of t...
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WO/1989/004080A1 |
This invention seeks to solve the problem of the loss of productivity caused by switch malfunctions in motorized tools because such malfunctions cannot be repaired at the job site. The principal use of the invention would be in motorized...
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WO/1988/009245A1 |
A device on hand-held power tools for transmitting torque to percussion drilling tools has at least two rotary entrainment grooves, opening out at the end of the tool shaft, into which engage ridge-shaped rotary drivers on the tool holde...
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WO/1988/003848A1 |
In order to attach an object to the facade of a building a first horizontal hole (4) is drilled in the facade into a floor slab (3), and a second hole intersecting said first hole is drilled from below in the floor slab (3) inside the bu...
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WO/1988/001219A1 |
A jack hammer with a pneumatic percussion tool that can be switched off by externally actuating holding elements (15, 15') via switching means (27, 30, 37, 27', 30', 37'). The holding elements (15, 15') can hold the striker (6, 6') with ...
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WO/1988/000870A1 |
A mounting (1) for accessory units such as bit stops or the like to be mounted on the side of a hand machine-tool has an opening (4) and a locking lever (12) which constricts the opening (4). The lever (12) has at its end opposite the op...
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WO/1987/007008A1 |
A machine-tool (13) comprises a device for measuring the distance to a workpiece (16) to be machined. The measurement of the distance is carried out according to a known process of triangulation, in which a radiation source (11) projects...
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WO/1987/007011A1 |
A radiation source (10) projects an optical pattern on the surface (17) of the workpiece (18) and the radiation (26) reflected by the surface (17, 22) is reproduced on a radiation receiver (30). Different distances (16, 19) result in dif...
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WO/1984/002865A1 |
A drill guide with a workpiece engaging foot (26) mounted for slidable movement along a direction parallel to the drilling axis of a portable hand held drill to which the guide (12) may be mounted, having a drill engaging collar (12) by ...
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WO/1983/003119A1 |
Known jet turbine driven machine tools suffer considerable speed reductions when the load increases or varies. This results from interference between the spent air and the working jet. In the case of the present invention the turbine, dr...
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WO/1983/001523A1 |
In the disclosed error-correcting memory, data bits are stored in a plurality of memory arrays (A1...Ax+1). Each of said arrays have their memory cells arranged in rows (R1...Rm) and columns, (C1...Cn+1) and a word of said data bits is r...
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WO/1982/000863A1 |
Coupling comprising female and male members (19, 18) having co-operating wedge surfaces (20, 21), which may be urged into contact by tightening means (37). A spring (29) is adapted, upon tightening of the coupling, to accumulate spring f...
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WO/1981/000370A1 |
A tool guide (10) for providing a stationary support for a portable power tool such as an electric drill (80). When the lower portion of the device is clamped between the vise jaws (50) of a portable workbench and vise (60), an electric ...
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WO/1981/000369A1 |
A tool guide (10) for providing controlled support for a portable power tool such as an electric drill (80). When the lower portion of the device is clamped between the vise jaws (50) of a portable workbench and vise (60), an electric dr...
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WO/1979/001041A1 |
A power-driven hand mechanical tool, operating in particular as a drilling or percussive machine, wherein a rotating mandrel (20) with an air percussive part (13) are movable. The percussive part (13) comprises a concentric driving sheat...
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JP7483998B1 |
[Problem] The present invention aims to reduce dust damage caused especially when drilling holes in walls etc. in equipment construction, and is capable of reducing human body damage caused by asbestos-containing building materials in bu...
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JP7480173B2 |
An attachment (110) for a hand-held power tool (200), in particular a screwdriver or drill, wherein the attachment (110) has an attachment housing (113) and a drive element (123) on a drive side (111), which drive element can be coupled ...
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JP2024062164A |
An object of the present invention is to provide a boring machine that realizes highly accurate machining of a surface to be machined. [Solution] During work, the base plate 4 is attached to the workpiece C, and the support column B, whi...
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JP2024518109A |
A hand-held machine and method for removing steel friction welding elements from a part assembly and, in particular, allowing reconnection of the assembly with the friction welding elements. A hand-held machine (10) includes a machine ho...
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JP7471058B2 |
The utility model aims to smoothly implement excavation work. The auxiliary handle is mounted on the electric tool, and the electric tool is provided with: a motor housing that houses the motor; a handle housing which is disposed at the ...
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JP7470234B1 |
The present invention aims to reduce damage to human bodies caused by asbestos-containing building materials, and in particular provides a technical proposal that makes it possible to reduce damage caused by asbestos dust that occurs whe...
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JP7467501B2 |
An attachment for a portable power tool, in particular a screwdriver machine or drilling machine, wherein the attachment has a drive part with a drive element and an output part with an output element for driving a work tool, wherein the...
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JP7464112B2 |
The present invention cools a bearing. In a vibration drill 10, a rear-side motor bearing 45 that rotatably supports a rotating shaft 41 of a motor 40 is held in a bearing holding part 26 of a motor housing 24. A plurality of air suction...
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JP7458167B2 |
The drill includes a motor, a spindle rotatable with a rotational force transmitted from the motor, a clutch assembly that disables transmission of the rotational force to the spindle in response to a rotational load on the spindle reach...
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