EP2621685A1 - Outil à main comprenant un boîtier conçu comme poignée - Google Patents

Outil à main comprenant un boîtier conçu comme poignée

Info

Publication number
EP2621685A1
EP2621685A1 EP11761376.0A EP11761376A EP2621685A1 EP 2621685 A1 EP2621685 A1 EP 2621685A1 EP 11761376 A EP11761376 A EP 11761376A EP 2621685 A1 EP2621685 A1 EP 2621685A1
Authority
EP
European Patent Office
Prior art keywords
housing
hand tool
brake
compressed air
triangular shape
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
Application number
EP11761376.0A
Other languages
German (de)
English (en)
Other versions
EP2621685B1 (fr
EP2621685B8 (fr
Inventor
Jan Sitzler
Dieter Kaiser
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schmid and Wezel GmbH and Co
Original Assignee
Schmid and Wezel GmbH and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schmid and Wezel GmbH and Co filed Critical Schmid and Wezel GmbH and Co
Priority to SI201130806A priority Critical patent/SI2621685T1/sl
Priority to PL11761376T priority patent/PL2621685T3/pl
Publication of EP2621685A1 publication Critical patent/EP2621685A1/fr
Publication of EP2621685B1 publication Critical patent/EP2621685B1/fr
Application granted granted Critical
Publication of EP2621685B8 publication Critical patent/EP2621685B8/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles

Definitions

  • Hand tool with a designed as a handle housing
  • the present invention relates to a hand tool with a handle designed as a handle for handling housing according to the preamble of claim 1.
  • Such a hand tool is known from DE 201 03 600 U1 and has a rotatably mounted in the housing rotor which is rotatably coupled to a tool holder and adapted to be driven by a supply of compressed air.
  • the rotor is part of a radial turbine, which has a comparatively large radius and which is arranged at one of the tool holder end facing away from the housing in the housing.
  • the tool holder protrudes from a front end of the hand tool and is rotatably mounted in the front end.
  • the housing has substantially circular cross-sections whose diameters vary over the length of the housing. Starting from the tool holder, the housing diameter initially increases in order to provide sufficient space in the interior of the housing for said storage. At the surrounding the storage housing part is followed by a middle housing part with a constant diameter. This diameter is smaller than the housing diameter in the area of the front bearing. Behind the central region, the diameter of the housing cross-section increases again to provide sufficient space inside for the radial turbine.
  • the radial turbine is comparatively large and therefore requires a correspondingly large housing diameter.
  • the diameter is particularly so large that this housing section is not particularly well suited as a handle for manual handling of the known hand tool. It is also larger than the diameter of the housing in the front storage area. For this reason, this housing section is arranged with the radial turbine behind the central handle part, which thus extends between the tool holder and the radial turbine. This complicates the handling of the known hand tool, since the comparatively thick housing portion engages the radial turbine with a comparatively large lever arm on the tool tip, which makes the known hand tool to some extent top-heavy.
  • the hand tool according to the invention is characterized in that it has at least two mutually equal radial turbines, which are arranged axially one behind the other and on a part of the rotor, which within the handle designed as a housing in the axial direction approximately in the Center of the housing, and that the housing at a first end facing a tool holder is circular and there has a first, relatively smaller diameter, that it is circular at a second, the tool holder opposite end and there has a second, relatively larger diameter in that, starting from its first end and tapering towards the second end, it initially tapers, its cross section going from the circular shape into a first rounded triangular shape, starting from its second end and tapering towards the first end its cross section changes from the circular shape into a second rounded triangular shape, the cross sectional area of which, as it continues to run towards the first end, is initially slightly larger and then continuously smaller in order to still further taper towards the first end of the surface formed
  • the reduction of the radius of the turbine allows an arrangement of the drive in the axially middle region of the housing designed as a handle part. As a result, the top-heavy arrangement of the drive and a large single turbine surrounding and correspondingly large and heavy housing is avoided.
  • the middle part of the housing is used several times, namely as a housing for the at least two turbines and as a handle part. Due to this multiple use, the housing can be shorter overall, which is advantageous for handling.
  • This advantage results from the fact that the tool itself acts as a lever with which the dead weight of the compressed air hose pulls on the pressure connection. In this case, the clamped into the tool holder 14 tool to some extent forms the point at which the lever acts. The shorter the tool, the shorter the lever and the lower the interference from the weight of the compressed air hose.
  • a housing is defined whose ergonomic shape and its dimensions allow for a handling of the hand tool in a pen holder and also allow handling, in which the hand tool between the palm and the four fingers of a hand and wherein the thumb of the hand ergonomically presses the front portion of the housing against the index finger.
  • this handling would be ergonomic rather unfavorable in the known hand tool, since the large turbine radius would disturb here.
  • Figure 1 shows an embodiment of a hand tool according to the invention
  • Figure 2 is a side view of a housing of the hand tool together with eight housing sections;
  • Figure 4 is a perspective view of a control sleeve
  • Figure 5 is a plan view of the front end of the control sleeve
  • Figure 6 shows a longitudinal section through the control sleeve
  • Figure 7 shows a cross section through the control sleeve
  • FIG. 8 shows an embodiment of a brake
  • FIG. 9 is another view of the article of Figure 8; and FIG. 10 shows adjustment-rotational angle characteristics of the control sleeve.
  • the hand tool 10 has a housing 12 designed as a handle part, from the front end of which a tool holder 14 protrudes.
  • the tool holder 14 is rotatably connected to a rotor which is rotatably mounted in the housing 12 and is driven by a pressurized fluid. Compressed air is in particular compressed air in question.
  • the compressed air is supplied to the hand tool 10 via a connecting part 16, which has a valve for controlling the compressed air supply.
  • the actuation of the valve via a rotatable control sleeve 18, which is arranged at a rear end 20 of the housing 12 between the housing 12 and the connecting part 16.
  • the control sleeve 18 has a front end 22 and a rear end 24.
  • Figure 2 shows a side view of the housing 12 together with eight cross-sections A-A to H-H.
  • the housing 12 is circular at its tool holder 14 facing first side 15 and also at its opposite the tool holder 14 second end 20.
  • the section AA represents the cross section of the first end 15, and the section HH represents the cross section of the second end 20.
  • the diameter of the housing 12 at the second end 20 is greater than the diameter of the housing 12 at its first end 15.
  • the diameter of the housing at its first end 15 is 20 mm to 25 mm and at its second end 20 25 mm to 35 mm at a length of the housing 12 of 80 mm to 120 mm.
  • the housing 12 Starting from its first end 15 and tapering towards the second end 20, the housing 12 initially tapers. This can be seen from the transition from section A-A to section B-B in the side view of the housing 12 in FIG.
  • the cross-section B-B shows that the shape of the cross section goes from a circular shape to a first, strongly rounded triangular shape.
  • the points marked with h at the circumference of the cross section B-B correspond to the corners further away from the center M, while the points marked at t correspond to the points between the corners which are comparatively closer to the center M.
  • the points t in each case halve the edge of the rounded triangle lying between two corner points h.
  • the cross-section of the housing 12 tapers and thereby merges into a rounded circular shape, as shown in section G-G and, more pronounced, in section F-F.
  • the relatively far away from the center on the longitudinal axis 86 of the hand tool 10 points on the circumference of the cross-section F-F are marked with h, while the comparatively lying closest to the midpoint M points of the circumference of the cross-section F-F are denoted by t.
  • the points h represent the corners of the rounded triangle profile.
  • the points t in each case halve the edge of the rounded triangle lying between two corner points h.
  • the cross-sectional area of the rounded second triangular shape is initially slightly larger again or remains at least the same size.
  • the cross-sectional area of the rounded second triangular shape then becomes continuously smaller, as illustrated in FIG. 2 by the transition from the cross-section E-E to the cross-section D-D.
  • the continuous reduction of the cross section of the second triangular shape also continues beyond the cross section D-D, so that the second triangular shape when penetrating further towards the first end 15 penetrates the first triangular shape (see section B-B).
  • the penetration results in a penetration line 17, at which the two rounded triangular shapes merge into one another.
  • the cross section C-C lies in the region of this penetration and has the cross section of a rounded hexagon.
  • This shape results from the fact that the first triangular shape is rotated by 60 ° with respect to the second triangular shape.
  • the specification of this rotation angle refers to the longitudinal axis 86 as the axis of rotation, or to the center M as a fulcrum.
  • the line 19 marks an elevated area, in which the corner points of the rounded triangular shapes lie in particular.
  • the hand tool 10 is adapted to be held in one hand, wherein the front end can be held in particular like a pen. This allows a very fine work with the hand tool 10.
  • FIG. 3 shows a longitudinal section through the hand tool 10.
  • the housing 12 has an inner sleeve 28 and an outer sleeve 30, which are fitted into one another with an exact fit and fixedly connected to one another.
  • the inner sleeve 28 is preferably made of metal, in particular a light metal such as aluminum and gives the housing 12 the required strength.
  • the outer sleeve 30 is preferably made of a compared to the metal of the inner sleeve 28 poor heat conductive plastic.
  • the execution of the inner sleeve made of light metal keeps the weight of the hand tool 10 low, which also contributes to a good handling and fatigue-free work, especially in fine work and is therefore also felt in handling as an advantage.
  • a rotor 32 is rotatably mounted in bearings 34, 36.
  • the rotor 32 is at its end, which protrudes from the front end 15 of the housing 12, rotatably connected to a tool holder 14.
  • the tool holder is in one embodiment, a collet 38, which is connected via a pliers spindle 40 with the rotor 32.
  • the other end of the rotor 32 is configured as a hollow spindle 42 whose central cavity 44 is pneumatically connected to the compressed air supply when the compressed air valve 45 is open and the compressed air supply connected to the connection part 16.
  • the preferred sequential arrangement makes it possible to make the housing 12 substantially slimmer than is the case with the subject matter of DE 201 03 600 U1.
  • control sleeve 18 Further improvements in the handling result from a special embodiment of the control sleeve 18. Before an explanation of the control sleeve 18, further elements of the drive of the hand tool are first described.
  • the radial turbines 46, 48, 50, 52 are flowed over in the axial direction along the spindle 42 offset openings 54, 56, 58, 60 from the cavity 44 of the spindle 42 from the inside with compressed air.
  • three openings are preferably provided for each module of the radial turbine, which are distributed uniformly over the circumference of the portion of the spindle 42 which is within the respective radial turbine module.
  • the radial turbines 46, 48, 50, 52 are rotatably coupled to the spindle 42 of the rotor 32 and therefore drive the rotor 32 at.
  • the rotationally fixed coupling takes place by axial clamping of the radial turbines 46, 48, 50, 52 with the spindle 42 by a clamping nut 66th
  • the turbine speeds can reach min -1 in an order of 100 000th When switching off the compressed air supply, it then continues to run for, for example, about 30 seconds. This results in a safety and injury risk during handling.
  • the hand tool 10 has a brake which is partially visible in FIG. 3 as a pairing of a friction plate 68 and a pressure plate 70 and which will be explained in more detail below.
  • the compressed air valve 45 in the illustrated embodiment is a ball valve having a ball 72 which is urged by a resilient member 74, for example a spring, onto a circular supply port of a compressed air channel 76 to close that opening.
  • the compressed air channel 76 is preferably a central channel in a valve body 77.
  • a valve pin 78 is provided to open the valve 45.
  • the valve pin 78 has a first end 80 facing the ball 72 and a second end 82 which is guided in a recess in the inner surface of the control sleeve 18 that is shaped as a valve guide track 84.
  • valve pin 78 itself is guided substantially radially in a guide within the valve body 77. With respect to a longitudinal axis 86 of the hand tool 10, the distance of that control surface of the valve guide track 84, which faces the second end 82 of the valve pin 78, of the longitudinal axis 86 of the hand tool from the rotation angle of the control sleeve 18 is dependent. This means that the inward and outward movement of the valve pin 78 is controllable by a rotation of the control sleeve 18.
  • Figure 3 shows a closed position of the valve 45.
  • the control sleeve 18 is rotated about the axis 86 around. Due to the design of the guide track 84, the valve pin 78 is initially pressed radially inwardly against the ball 72. Upon further rotation of the control sleeve 18 of the valve pin 78 then pushes the ball 72 laterally (ie in the figure 3 upward) out of the closed position, so that compressed air can flow over the central air inlet opening 26 on the ball 72 in the compressed air passage 78.
  • FIG. 4 shows a perspective view of a control sleeve 18.
  • the control sleeve 18 has distributed over its outer circumference recesses 88, which facilitate the adhesion in a manual operation and thus also contribute to improved handling.
  • the axially extending recess 90 opens the valve guide track 84 to the front end 22 of the control sleeve 18 and thus allows an axial relative movement between the valve pin 78 and the control sleeve eighteenth.
  • the above-mentioned realized as a recess valve guide track 84 for the valve pin 78th
  • the control sleeve 18 has two open towards its front end 22 brake pin guide tracks 92, 94, which are also realized as depressions in the inner surface of the control sleeve 18.
  • FIG. 5 shows a plan view of the front end 22 of the control sleeve 18 and serves primarily to illustrate the position of the longitudinal section, which is shown in the figure 6.
  • FIG. 6 illustrates, in particular, the position of the cross section, which is shown in FIG. Figures 5 and 7 are mirror images of each other.
  • the valve guide track 84 lies in particular.
  • a comparison of these FIGS. 5 and 7 shows in particular that the actuation of the brake and the actuation of the compressed-air valve 45 take place in parallel. wherein the control and Abgnaung the compressed air supply over a further rotation angle range away takes place as a releasing and / or braking operation of the brake.
  • FIG. 8 shows, in a schematic form, an embodiment of a brake, as it is actuated by the control sleeve 18 in connection with the hand tool 10 according to the invention.
  • the brake has for each brake pin guide track 92, 94 of the control sleeve 18 on a brake pin 96 which is guided in the valve body 77 substantially perpendicular to the longitudinal axis 86 of the hand tool 10 movable.
  • the valve body 77 guides 98, in which the brake pins are guided translationally displaceable.
  • the brake pin 96 has an end facing the control sleeve 18 and a control sleeve 18 facing away from the end 102. At this end 102, the brake pin 96 has an inclined plane 104.
  • a brake axle 105 lying substantially coaxially to the longitudinal axis 86 of the hand tool 10 has a recess with an inclined plane 106.
  • the inclined planes 104 of the brake pin 96 and the brake axle 105 have the same inclination and are arranged and arranged to slide on each other.
  • the brake pin 96 is pressed down in FIG. 8 and thereby presses the brake axis 105 to the right via the inclined planes 104 and 106.
  • a pressure plate 108 is lifted by the action of brake springs 110 from a friction plate 112, which is rotatably coupled to the rotor 32. This releases the brake.
  • the brake is activated when the control sleeve 18 is rotated in a direction abscursing the compressed air supply and thus closing direction.
  • the brake pin 96 slides upward in FIG. 8 and allows the brake springs 110 to press the pressure plate 108 against the friction lining 112.
  • the brake is thus realized as a spring brake in which the braking force is applied by springs and is released against the force of the springs. This has the advantage that the closing rotation of the control sleeve 18 is automatically braked, even if no manual force is applied when the control sleeve 18 is closed.
  • FIG. 9 shows the object of FIG. 8 in a representation rotated through 90 ° about the longitudinal axis 86.
  • the offset of the brake axes by 180 ° has the advantage that the brake axes can be distributed around the circumference, so that the central compressed air supply to the rotor can be maintained.
  • the bolts 92 and 94 are preferably mounted so that they move against each other in an anti-parallel operation: The bolt 96 is perpendicular to the plane of the drawing, while the bolt 100 is suspended vertically below the plane of the drawing.
  • FIG. 10 shows, for a preferred embodiment of a control sleeve 18, the path 114 of a brake axle 105 in millimeters, plotted against the angle of rotation of the control sleeve 18 in degrees.
  • the curve 116 shows the path of the valve pin 78 of the compressed air valve 45 also in dependence on the angle of rotation of the control sleeve 18 in degrees.
  • the rotatable control sleeve 18 is configured to control the brake and the pressurized fluid supply in such a way that the compressed-air valve 45 is opened in parallel to release of the brake, and wherein a brake displacement-rotational angle characteristic 114 the control sleeve 18 in a first rotation angle range, which extends in the figure 10 approximately to the angle 32 °, is steeper than in a second, further away from the closed position rotation angle range.
  • the closed position corresponds to the object of the figure 10, the rotation angle 0 of the control sleeve 18.
  • the second rotation angle range is the range between about 32 and about 110 °, in which the characteristic 114 is not only less steep, but in the illustrated case even without inclination.
  • the course of the characteristic curve 116 shows how the entire angle of rotation range of 0 ° to 110 ° of the control sleeve 18 is used to regulate the supply of compressed air. This results in the already mentioned improved meterability.
  • the realization of the actuating element as a rotary sleeve has the advantage that a rotational movement for the adjustment of the hand tool mentioned above is subjectively perceived as ergonomic.
  • the interaction of adjusting torque and the torque of the hand tool causes in the rotatable control sleeve with respect to the sliding sleeve better and more sensitive haptic feedback, as superimposed on the manually applied adjusting torque with a resulting torque change of the hand tool.
  • the better haptic feedback in particular improves the controllability of small changes in the drive power, which improves handling by improving the metering.
  • the control of the compressed air supply which takes place in parallel with releasing the brake, permits an expansion of the adjustment path of the actuating element during the metering of the compressed air supply, which likewise leads to an improvement in the meterability and thus also in the handling.
  • a brake-displacement-rotational angle characteristic of the control sleeve in a first rotation angle range in the vicinity of the closed position of the control sleeve is steeper than in a second, further away from the closed position rotation angle range, is a fast separation of the brake when opening and a late Successful closing the brake when Abêtn the compressed air supply ensured. Due to the steeper course, the opening of the brake when opening the compressed air supply takes place early and quickly, that is, over only a small rotational angle range of the sleeve. Similarly, the closing of the brake is late and fast. Overall, despite the parallel operation of the valve and the brake taking place under the influence of a compressed air drive rubbing the friction surfaces of the brake largely avoided, so that improved metering of compressed air supply is not at the expense of the life of the brake.
  • a preferred embodiment is characterized in that the control sleeve is adapted to allow a control and Abêtung the compressed air supply over a larger rotation angle range done as a release and actuation of the brake.
  • the Aufhneung takes place in particular via a further take place rotation of the control sleeve beyond a rotation angle at which the brake is already completely dissolved. This avoids, on the one hand, that large torques become effective when the brake is not yet fully released, which could lead to premature wear of the brake.
  • there is the advantage that a large angle of rotation for an up and down control of the compressed air supply is available, which improves the one aspect of the handling formability dosing.
  • Both characteristic curves 114, 116 have different angular ranges for the angle of rotation of the control sleeve, in which the respective characteristic has a non-zero slope.
  • Each of the two angular ranges can be mentally divided into a first half and a second half, wherein the first half contains the closed position and the second half of the open position of the air valve, or the brake.
  • the characteristic curve 114 is preferably distinguished by the fact that in the first half or at least in a partial area of its first half it becomes progressively steeper, preferably a continuously steeper course and overall monotonically increasing course.
  • the characteristic 114 is characterized in that it has a course with decreasing slope, preferably with continuously decreasing slope, at least in a partial area of its second half.
  • the characteristic curve 114 is therefore distinguished in a preferred embodiment by a continuously increasing profile with a change of curvature.
  • the characteristic curve 116 is preferably characterized in that in its first half or at least in a partial area of its first half it has a steeper course, preferably a continuously steeper course and an overall monotonically increasing course.
  • the slope of the characteristic 116 is on average between its closed position and its open position smaller than the slope of the characteristic 114 between the closed position and the open position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne un outil à main (10) comprenant un boîtier (12) conçu comme poignée de manipulation et un rotor (32) qui est monté à rotation dans le boîtier (12) et qui est couplé solidaire en rotation à un logement (14) d'outil et est conçu pour être entraîné par une amenée d'air comprimé. L'outil à main est caractérisé en ce qu'il (10) comprend au moins deux turbines radiales (46, 48) identiques qui sont disposées l'une derrière l'autre et sur une partie du rotor (32) qui se situe à l'intérieur du boîtier (12) conçu comme poignée dans la direction axiale approximativement au centre du boîtier (12) et en ce que le boîtier (12) est rond à une première extrémité (15) orientée vers le logement (14) d'outil et présente là un premier diamètre comparativement plus petit, en ce qu'il est rond à une deuxième extrémité (20) opposée au logement (14) d'outil et présente là un deuxième diamètre comparativement plus grand, en ce qu'il se rétrécit en partant de sa première extrémité (15) en direction de la deuxième extrémité (20), sa section transversale se transformant de la forme circulaire dans une première forme triangulaire arrondie, en ce qu'il se rétrécit en partant de sa deuxième extrémité (20) en direction de la première extrémité (15), sa section transversale se transformant de la forme circulaire en une deuxième forme triangulaire arrondie dont l'aire de section transversale en continuant vers la première extrémité (15) est tout d'abord légèrement plus grande et puis devient continuellement plus petite pour traverser la surface formée par la première forme triangulaire en continuant vers la première extrémité (15) et en ce que la première forme triangulaire est tournée de 60° par rapport à la deuxième forme triangulaire.
EP11761376.0A 2010-09-27 2011-09-27 Outil à main comprenant un boîtier conçu comme poignée Not-in-force EP2621685B8 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201130806A SI2621685T1 (sl) 2010-09-27 2011-09-27 Ročno orodje, ki ima ohišje oblikovano kot ročaj
PL11761376T PL2621685T3 (pl) 2010-09-27 2011-09-27 Ręczne narzędzie z obudową stanowiącą uchwyt

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202010013938U DE202010013938U1 (de) 2010-09-27 2010-09-27 Handwerkzeug mit einem als Griffteil eingerichteten Gehäuse
PCT/EP2011/066736 WO2012049017A1 (fr) 2010-09-27 2011-09-27 Outil à main comprenant un boîtier conçu comme poignée

Publications (3)

Publication Number Publication Date
EP2621685A1 true EP2621685A1 (fr) 2013-08-07
EP2621685B1 EP2621685B1 (fr) 2016-03-09
EP2621685B8 EP2621685B8 (fr) 2016-06-01

Family

ID=43308215

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11761376.0A Not-in-force EP2621685B8 (fr) 2010-09-27 2011-09-27 Outil à main comprenant un boîtier conçu comme poignée

Country Status (6)

Country Link
EP (1) EP2621685B8 (fr)
DE (1) DE202010013938U1 (fr)
ES (1) ES2573129T3 (fr)
PL (1) PL2621685T3 (fr)
SI (1) SI2621685T1 (fr)
WO (1) WO2012049017A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011077441A1 (de) * 2011-06-14 2012-12-20 Robert Bosch Gmbh Handwerkzeugmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7530984U (de) * 1975-10-01 1977-03-24 Robert Bosch Gmbh, 7000 Stuttgart Gerades kraftwerkzeug
DE8610871U1 (de) * 1986-04-21 1986-07-10 Mazouch, René, Dr., 88422 Bad Buchau Stabförmiger Handgriff
US4942791A (en) * 1989-08-14 1990-07-24 Cooper Industries, Inc. Ergonomic handle for hand-held tools
US5261233A (en) * 1991-04-23 1993-11-16 Nitto Kohki Co., Ltd. Brake device of pneumatic rotational tool
DE20103600U1 (de) 2001-03-01 2002-07-11 Schmid & Wezel Gmbh & Co Druckluftwerkzeug
DE20117311U1 (de) * 2001-10-25 2002-02-14 Joisten & Kettenbaum Gmbh & Co Handstück für Oberflächenbearbeitungswerkzeuge mit Griffelement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012049017A1 *

Also Published As

Publication number Publication date
WO2012049017A1 (fr) 2012-04-19
EP2621685B1 (fr) 2016-03-09
DE202010013938U1 (de) 2010-12-09
EP2621685B8 (fr) 2016-06-01
ES2573129T3 (es) 2016-06-06
PL2621685T3 (pl) 2016-08-31
SI2621685T1 (sl) 2016-06-30

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