EP0515371A1 - Handgeführte werkzeugmaschine. - Google Patents
Handgeführte werkzeugmaschine.Info
- Publication number
- EP0515371A1 EP0515371A1 EP90916263A EP90916263A EP0515371A1 EP 0515371 A1 EP0515371 A1 EP 0515371A1 EP 90916263 A EP90916263 A EP 90916263A EP 90916263 A EP90916263 A EP 90916263A EP 0515371 A1 EP0515371 A1 EP 0515371A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- machine according
- working
- movement
- shaft
- bevel gear
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
- B25D16/003—Clutches specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
- B25D2211/006—Parallel drill and motor spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
- B25D2211/06—Means for driving the impulse member
- B25D2211/068—Crank-actuated impulse-driving mechanisms
Definitions
- the hand machine tool can be used wherever work and machining are carried out using tools of all kinds.
- the area of manual processing by non-specialist people should be taken into account as well as the area of professional crafts and industrial processing.
- the invention relates to a hand-held machine tool, in particular for drilling, blow bores, sawing, chiseling, filing, grinding, screwing, drilling saws, drilling rasps, drilling files, circular saws, rasps, planing with a working shaft and with a, preferably electrical, Drive motor.
- Such machines are for certain functions, e.g. known as a saw-felt rasp or as a drilling and percussion drilling machine.
- a machine tool for stone processing in which the striking tool can be set either in a striking movement or in a striking and at the same time rotating ( drilling) movement (DE-GM 19 03 434).
- a rotary hammer has also been proposed, in which an automatic switchover to a wide variety of operating modes is possible, the technical solution being that a contour is scanned on the tool used is and the resulting information is converted into switching signals, for example for a certain speed and for a certain number of strokes (DE-OS 37 20 512).
- a hand-held tool in which a tool can be set either into a rotation or into a rotation and a visual movement or into a pure striking movement, the special solution being that there is a very specific correlation between the speed and the striking movements in order to make holes in a perforated base in a very specific way (EP-OS 143 086).
- a very special embodiment shows a third-party-driven saw, the special idea being to use a drilling machine known per se as the drive, which is connected to the actual saw via a flexible shaft. The rotary movement is then converted into a translational movement in the housing of the saw (US Pat. No. 4,841,643).
- Another known drilling machine shows a Get ⁇ ' level design with which the number of blows per revolution of the output shaft can be adapted to the material of a workpiece to be machined when the speed of the output shaft is set.
- the proposed option for this consists in a gear on the output shaft which can be displaced on a spline profile and which can be assigned to different pinions of the drive (DE-PS 27 34 965).
- the invention has for its object to provide a hand-held machine tool for a larger number of different training work functions, in particular for drilling, filing, rasping, drilling files, circular saws, grinding, planing, visual drilling, screwing, sawing, drilling saws, rasps and chisels. Furthermore, it should be possible, preferably when the working shaft is at a standstill, to drive another working machine, for example a circular saw.
- a machine according to the invention is designed in such a way that the rotary movement can be selected on the or on the working shaft either in the direction of rotation via a first clutch or a blocking without rotation can be effected via a second clutch, and that in the longitudinal direction
- the oscillating movement can be supplied via a third coupling or a sc lag movement can be supplied via a fourth coupling or a locking can be effected via a fifth coupling.
- Another tool e.g. a circular saw or a flexible shaft, connectable. It is advantageous if the sixth clutch is arranged on that side of the drive motor which faces away from the tool holder on the working shaft.
- a coupling of the first and a coupling of the second group can be made separately selectively effective enables a plurality of different functions to be achieved. If the shaft is set in rotation via the first clutch, a round rasp can rotate in a reciprocating and simultaneously in a reciprocating motion when the third clutch engages can be moved or a hammer drilling can be carried out when the fourth clutch engages or the working shaft can be locked in the longitudinal direction when the fifth clutch engages and normal drilling or screwing can thus be carried out.
- a sawing movement can be achieved via the third coupling or a striking movement for a chisel via the fourth coupling or a complete locking via the fifth coupling, so that the machine tool in All in the manner of a screwdriver with increased leverage can be used.
- the machine tool can also form the drive for another machine tool as a motor.
- a special embodiment of a hand tool machine is characterized in that the motor rotates a first bevel gearwheel with an axis parallel to the working axis, which drives a second bevel gearwheel with an axis approximately perpendicular to the working shaft, and which drives a push rod gear Generating the oscillating movement directed parallel to the working area, and that a third bevel gear with an axis parallel to the working area is displaceable in the axial direction such that it either engages with the second bevel gear in the form of the first clutch or is locked in the form of the second clutch, a first spur gear fixedly connected to the third bevel gear being in engagement with a second spur gear attached to the working shaft and that the work shaft is slidably mounted in the axial direction and that on the work shaft a distance, for example 15 mm, corresponding to the stroke of the oscillating movement, between an inner stop (on the side facing away from the drive, for example a drill chuck) and an adjustable, for example ring-shaped, outer stop arranged
- the oscillating movement is thus produced by means of a Kege Lradget ri ebes, which at the same time serves to transmit the rotary movement or to lock the working shaft.
- the movement in the longitudinal direction can be adjusted in a simple manner by means of the adjustable outer stop, which then acts like separate (third, fourth, fifth) couplings.
- the block can be freely rotated on the working surface so that it can be connected to the oscillating drive without rotation.
- the working environment is expediently returned to a certain rest position by means of a tension or compression spring on an adjustable slide, so that an adjustment of the outer stop is possible without difficulty and the required distance for the block remains free during the oscillating movement.
- F i g. 1 shows a schematic representation of a hand machine tool according to the invention
- F i g. 2 shows a side view of an embodiment of the invention in the manner of a hand drill
- F i g. 5 shows a part of the machine according to FIG. Fig. 3 in a diagrammatic, enlarged view.
- a working shaft 1 carries a tool holder 2, e.g. a drill chuck.
- the shaft 1 is supported in bearings 3 and 4 in such a way that it is longitudinally extended by a stroke of e.g. 15 mm is displaceable.
- a drive shaft 6 can be set in rotation by a motor 5.
- a first and a second clutch 11 and 12 are arranged on the shaft 6, which can set or block the working shaft 1 in rotary motion via transmission members 21 and 22 and a gear arrangement 7.
- the working shaft 1 can be supplied with an oscillating movement or an impact movement in the longitudinal direction.
- the working shaft 1 can also be locked by means of a fifth clutch 15.
- the working shaft 1 rotates, but cannot be displaced in the longitudinal direction.
- the effect of a drilling machine is thus obtained.
- the clutch 15 Coupling 13 is closed, the working shaft 1 moves back and forth in the longitudinal direction and rotates in the process;
- a round rasp can be inserted into the drill chuck 2, with which openings in a wooden plate can be created and enlarged.
- the clutches 12 and 13 are closed, the working shaft 1 does not rotate, but does move back and forth in the longitudinal direction. A normal saw blade can thus be brought into effect in the tool holder 2.
- the shaft does not rotate, does not move appreciably in the longitudinal direction, but merely exerts blows.
- a chisel attached to a tool holder 2 can thus do its job.
- the shaft 1 rotates and strikes; a hammer drill can therefore be brought into effect.
- the couplings 12 and 15 are closed, the working shaft 1 is immovably fixed.
- a tool inserted into the holder 2 can thus be used in the intended manner, the hand machine tool as a whole being able to be used as a larger handle with increased force and leverage.
- screws also Allen screws or screws, can be actuated by hand using a socket wrench. After overcoming a greater resistance, the rotary movement can be started by switching from 22 to 11, and thus the further quicker loosening of the screw in question can be effected .
- a sixth clutch 16 to drive another tool, for example a circular saw, flexible shaft or the like to connect, in which case the hand-held machine tool is also used as such, and its motor and the control circuits for speed and force, which may be provided in a manner known per se, can be actuated together.
- the HäweLle 1 in the bearings 3 and 4 carries a drill chuck 2 or another tool holder.
- a second bevel gear 33 in engagement with the first bevel gear 31 is mounted on an axis 32, indicated only by dashed lines and perpendicular to the working area 1.
- the axis 32 is fastened in a bearing block 34.
- a third bevel gear 35 with an axis 36 is arranged on a bearing block 37.
- the third bevel gear 35 is structurally connected to a first spur gear 38 which is in engagement with a second spur gear 39 on the shaft le 1.
- the shaft 1 is on the far right and touches with the flank of the spur gear 39 the bearing block 4, which is optionally provided with a slide bearing or also with a ball bearing 40 on the end face.
- the bearing block 4 On the other side of the spur gear 39 there is an adjustable fixed stop ring 41, with which, as will be described later, the oscillating movement can be adapted if necessary.
- An axle bearing 42 which is connected to a push rod 43, is eccentrically attached to the second bevel gear 33.
- This push rod which may be subdivided and additionally supported, actuates a movement rod 44.
- the other end of which is fastened to a block 45 which on the axis 1 in the longitudinal direction corresponds to the stroke represented by a double arrow 51. and is moved when the bevel gear 33 rotates in a circle.
- a driver 46 is attached to the shaft 1, which can snap into a first, second or third groove 47, 48 or 49 in a manner shown in more detail in FIG. 3, wherein it has an adjustable outer stop for the movement of the block 45 of wave 1 is formed.
- the catch 46 is latched into the groove 47 shown on the far right, its lateral surface is practically on the side surface of the Log 45; the side surfaces of which can carry damping elements and / or ball bearings 50 in order to avoid disruptive mechanical stresses when the block 45 moves back and forth and when parts attached to the shaft rotate.
- the block 45 is thus enclosed between the stop 41 and the driver 46; when the block 45 is laterally moved, the shaft 1 is thus taken along with the parts fastened to it and carries out the oscillating movement specified by the bevel gear 33 from the eccentric arrangement, which moves from the push rod 43 via the movement rod 44 the block 45 is transferred.
- This setting is thus suitable, for example, to put either a fixed saw or a rotating circular rasp into operation, depending on whether or not a rotary movement is transmitted from the first spur gear 38 to the second spur gear 39.
- the machine tool according to the invention can work as a drilling machine.
- the driver 46 is in the position shown in the drawing, in which it is in the groove 48 is locked, the block 45 can initially move freely over about half of the stroke 51 and does not move the shaft 1. After that, the block 45 strikes the driver 46 and moves it forward a little. In this way, a blow can be exerted on the tool mounted in the tool holder 2, for example a simple chisel or a stone drill, which can then also be set in rotation.
- a housing holding the parts together with a holder 53b in the manner of a drill handle is shown in a manner known per se.
- this housing can also be provided with an additional handle 53c in the area of the bearing 3 in order to facilitate guiding the tool at work.
- a switch is indicated at 54, which can also effect electronic speed control in a known manner, depending on how hard the finger is pressed on it.
- the end of the working shaft 1 on the inside of the housing is provided with an axial bore 78a, into which a swivel 78 is inserted.
- two grub screws 79 are countersunk, which are arranged extending into the axial bore 78a.
- the tip of the grub screws 79 engage in a circumferential groove 47a in the swivel 78, so that rotation of the working shaft 1 is possible without hindrance.
- the swivel 78 is supported by a screw connection 78b at one end of a tension spring 52, so that an axial movement of the working shaft 1 is only possible under the influence of the spring force of the tension spring 52.
- Fig. 3 shows a hand machine tool according to the invention cut approximately along the line BB in Fig. 2 in the view from above. The same parts are provided with the same reference numerals. 3 shows in particular the mechanism for adjusting the position of the driver 46.
- This driver which surrounds the shaft 1 in the area of the groove 48 in an annular manner, is formed by two half rings, which are opposed by springs 57 and 58, respectively the shaft 1 are pressed.
- the springs 57 and 58 are supported against the front part of the housing 53 by means of washers or the like. 59 and 60.
- Rods 61 and 62 are guided through slots 53a in the housing 53 and carry button plates 63 and 64 at their upper ends. These button plates are located in the protective box under protective covers 65 and 66, which can be opened forward about pivot axes 67 and 68. In the closed state, the protective covers touch protective switches 65a, 66a which interrupt the power supply as soon as the covers are opened, the covers 65, 66 being held in their closed position by the springs 67a, 68a. In such an opened state, the button plates 63 and 64 can then be gripped and pulled outwards so that the parts of the driver 46 are lifted out of the groove 48 and the driver 46 can be moved into the groove 47 or into the groove 49.
- either the third or the fourth or the fifth coupling becomes effective in such a way that either, as described above, the shaft 1 is set in oscillating motion or carries out striking movements or is locked in the longitudinal direction.
- the driver 46 consisting of two semi-ring-shaped elements with the springs 57 and 58 and the rods 61 and 62 reproduced in a schematic half-oblique representation of the lung. It can be clearly seen how the two half-part drivers 46 can be pulled out of the groove 1 by the shaft 1 by means of the button plates 63 and 64, while they are normally held in the groove 48 by means of the two springs 57, 58.
- FIG. 4 shows a representation corresponding to the section AA in FIG. 1, that is to say at the level of the engagement area of the first and second spur gearwheels 38 and 39.
- the bearing journal 36 of the first gearwheel is slidably mounted in the bearing block 37 , wherein the displacement takes place by means of a spring-loaded raster LhebeLs 71, the movement of which is transmitted via a lever 72 to a groove 75 in the axle piece 36, so that the third bevel gear 35 is either engaged or not with the second bevel gear 33.
- Working mode 1 then stops, but it can still move back and forth.
- the latching element 71 is connected to the lever 72 via a bolt-long hole connection 76 under the action of a spring 77, not shown, in such a way that the latching element 71 can be pulled up to carry out the adjustment.
- a protective cover L 80.81 is provided in the area of the front tip of the working shaft 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Portable Power Tools In General (AREA)
- Manipulator (AREA)
- Gripping On Spindles (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Walking Sticks, Umbrellas, And Fans (AREA)
- Adornments (AREA)
- Sawing (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9001665 | 1990-02-13 | ||
DE9001665U | 1990-02-13 | ||
PCT/EP1990/001863 WO1991012116A1 (de) | 1990-02-13 | 1990-11-08 | Hand-werkzeugmaschine für mehrere arbeits-funktionen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0515371A1 true EP0515371A1 (de) | 1992-12-02 |
EP0515371B1 EP0515371B1 (de) | 1994-08-10 |
Family
ID=6850977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90916263A Expired - Lifetime EP0515371B1 (de) | 1990-02-13 | 1990-11-08 | Handgeführte werkzeugmaschine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0515371B1 (de) |
AT (1) | ATE109712T1 (de) |
AU (1) | AU6639090A (de) |
DE (3) | DE9015285U1 (de) |
WO (1) | WO1991012116A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5664634A (en) * | 1995-10-23 | 1997-09-09 | Waxing Corporation Of America, Inc. | Power tool |
DE19540396A1 (de) * | 1995-10-30 | 1997-05-07 | Hilti Ag | Bohr- und/oder Meisselgerät |
RO111555B1 (ro) * | 1995-12-12 | 2002-05-30 | Dumitru Panu-Misăilescu | Maşină portabilă, de mână |
DE19619428B4 (de) * | 1996-05-14 | 2005-11-10 | Eduard Gasinski | Handgeführte Kombinationswerkzeugmaschine mit Bohrmaschinen- und Stichsägenfunktion |
US7690658B2 (en) | 2004-09-20 | 2010-04-06 | Black & Decker Inc. | Tool chuck with power take off feature |
DE102005043124A1 (de) * | 2005-09-10 | 2007-03-15 | ThyssenKrupp Präzisionsschmiede GmbH | Kegelrad mit Anschlußverzahnung |
US7645101B2 (en) | 2005-09-16 | 2010-01-12 | Black & Decker Inc. | Chuck with internally threaded jaw in a PTO application |
CN108161075A (zh) * | 2017-12-30 | 2018-06-15 | 天津市九方煤矿机械制造有限公司 | 一种架座支撑气动手持式钻机 |
US11858100B2 (en) | 2021-04-07 | 2024-01-02 | Milwaukee Electric Tool Corporation | Impact power tool |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3286776A (en) * | 1964-06-23 | 1966-11-22 | Kenneth Conklin | Combination power hand tool |
US3841416A (en) * | 1972-08-15 | 1974-10-15 | Black & Decker Mfg Co | Portable jig-saw and spindle sander |
US4031622A (en) * | 1975-10-28 | 1977-06-28 | Wells Manufacturing Corporation | Portable power driven implement |
US4467896A (en) * | 1983-06-17 | 1984-08-28 | Black & Decker Inc. | Locking mechanism for a rotary power machine |
US4841643A (en) * | 1988-04-22 | 1989-06-27 | Colella Vincent J | Drill powered saber saw |
DE3819125A1 (de) * | 1988-06-04 | 1989-12-14 | Bosch Gmbh Robert | Bohrhammer |
-
1990
- 1990-11-07 DE DE9015285U patent/DE9015285U1/de not_active Expired - Lifetime
- 1990-11-08 AU AU66390/90A patent/AU6639090A/en not_active Abandoned
- 1990-11-08 AT AT90916263T patent/ATE109712T1/de not_active IP Right Cessation
- 1990-11-08 EP EP90916263A patent/EP0515371B1/de not_active Expired - Lifetime
- 1990-11-08 DE DE59006798T patent/DE59006798D1/de not_active Expired - Fee Related
- 1990-11-08 DE DE90EP9001863A patent/DE4092497D2/de not_active Expired - Fee Related
- 1990-11-08 WO PCT/EP1990/001863 patent/WO1991012116A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9112116A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1991012116A1 (de) | 1991-08-22 |
DE4092497A1 (en) | 1993-01-28 |
DE4092497D2 (en) | 1993-01-28 |
ATE109712T1 (de) | 1994-08-15 |
DE59006798D1 (de) | 1994-09-15 |
EP0515371B1 (de) | 1994-08-10 |
AU6639090A (en) | 1991-09-03 |
DE9015285U1 (de) | 1991-06-06 |
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