EP1409206A1 - Marteau perforateur et/ou marteau de demolition muni(s) d'une poignee - Google Patents

Marteau perforateur et/ou marteau de demolition muni(s) d'une poignee

Info

Publication number
EP1409206A1
EP1409206A1 EP02758385A EP02758385A EP1409206A1 EP 1409206 A1 EP1409206 A1 EP 1409206A1 EP 02758385 A EP02758385 A EP 02758385A EP 02758385 A EP02758385 A EP 02758385A EP 1409206 A1 EP1409206 A1 EP 1409206A1
Authority
EP
European Patent Office
Prior art keywords
hammer
axis
motor
striking
percussion
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
EP02758385A
Other languages
German (de)
English (en)
Other versions
EP1409206B1 (fr
Inventor
Wolfgang Schmid
Rudolf Berger
Peter Weyl
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.)
Wacker Construction Equipment AG
Original Assignee
Wacker Werke GmbH and Co KG
Wacker Construction Equipment AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7693234&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1409206(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wacker Werke GmbH and Co KG, Wacker Construction Equipment AG filed Critical Wacker Werke GmbH and Co KG
Publication of EP1409206A1 publication Critical patent/EP1409206A1/fr
Application granted granted Critical
Publication of EP1409206B1 publication Critical patent/EP1409206B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the invention relates to a hand-held drilling and / or percussion hammer according to the preamble of claim 1. 5
  • Drilling and / or impact hammers hereinafter referred to as hammers for short, are produced in accordance with a variety of design concepts, depending on the intended use. Hammers with small electric power consumption and light weight are generally used with a manual IC) reached in "pistol-shaped" is executed. However, with higher demands on the performance of such a hammer, a correspondingly increased diameter of an electric motor used in the hammer, generally a common universal motor, will result in a disadvantageous large distance between a hammer axis and the handle.
  • the invention has for its object to provide a hand-held drilling and / or percussion hammer, which has compact outer dimensions.
  • An inventive hand-held drill and / or percussion hammer hereinafter referred to as a hammer, has an electric motor, a drivable by the electric motor percussion, a the electric motor and the percussion receiving housing and a handle which is formed on the housing, that a Gripping position is located in an extension of a striking axis of the striking mechanism.
  • the axis of rotation of the motor shaft of the electric motor with the impact axis is parallel to the axis.
  • the arrangement of the handle at the height of the impact axis allows operation of the hammer without disturbing pitching vibrations, while the alignment of the motor shaft has a significant reduction in manufacturing costs result, because the number of required components can be significantly reduced.
  • the structure according to the invention is particularly suitable for hammers middle performance class or above.
  • the electric motor may be formed from a three-phase motor, wherein further in the housing, a converter for supplying power to the three-phase motor is provided with a suitable power frequency.
  • the three-phase motor makes it possible to significantly reduce the overall length of the hammer in its longitudinal direction, since a three-phase motor is shorter not only because of the omission of a collector, but also because this motor type can be shorter by the length of one or both motor bearings. Since these can be installed in contrast to the universal motor by the absence of a projecting beyond the end faces of the rotor core stack winding on the rotor in the winding of the stator.
  • a wobble shaft device can be provided in the housing, which converts a rotational movement of the three-phase motor into a reciprocating motion for the striking mechanism, the three-phase motor - in relation to the striking axis in horizontal position - above the wobble shaft device and behind the impact mechanism - ie between Percussion and handle - can be arranged.
  • a wobble shaft device is provided in the housing, which converts a rotational movement of the three-phase motor into a reciprocating motion for the impact mechanism, wherein the three-phase motor below the bogie and below the wobble shaft device, in each case based on the striking axis in horizontal position, can be arranged.
  • the resulting overall length of this embodiment is extremely short, resulting in excellent handling of the hammer.
  • the handle formed on the housing is a spade handle, wherein the three-phase motor can be arranged in a region of the housing below the spade handle.
  • the converter can be U-shaped for reasons of space and can be arranged above the percussion unit and above the tumble-wave device, relative to the striking axis in a horizontal position.
  • This possible embodiment of the converter has the advantage that unnecessary voids in the housing can be filled in accordance with the converter, which is reflected in the compact outer dimensions of the hammer. Furthermore, the resulting in the converter heat loss can be efficiently dissipated through the housing to the outside.
  • a spade handle is formed on the housing.
  • the hammer mechanism is designed as a hollow piston impaction, with hollow drive piston and movable therein percussion piston, wherein the wobble shaft device serves as a drive for the hollow plunger impaction.
  • the particular advantage of the described hammer is that on the one hand the total number of mechanical parts can be reduced and on the other hand the cost of these mechanical parts can be considerably reduced. With comparable functions as with conventional hammers of this performance class, not only cost advantages, but also weight advantages can be achieved. Consequently, the hammer according to the invention is extremely advantageous in terms of manufacturing costs, safety, ease of use and durability.
  • the electric motor is a universal motor.
  • a spade handle may be formed on the housing, further wherein the universal motor in a lower housing bar, d. H. in a region of the housing below the spade handle, can be arranged.
  • This arrangement advantageously leads to a small total length of the hammer in its longitudinal direction, despite the inherently longer design of the universal motor in relation to the three-phase motor.
  • FIG. 1 shows a basic structure of a first embodiment of the hammer according to the invention in a lateral Thomasan- sees
  • Fig. 2 shows a basic structure of a second embodiment of the hammer according to the invention
  • FIG. 3 shows a basic structure of a third embodiment of the hammer according to the invention.
  • FIG. 4 shows a basic structure of a fourth embodiment of the hammer according to the invention.
  • FIGS. 1 to 4 each show a basic structure of a first to fourth embodiment of a boring and / or percussion hammer 1 according to the invention, hereinafter referred to as a hammer, in a lateral sectional view.
  • the first to fourth embodiments shown in FIGS. 1 to 4 have in common that a housing 2 is provided, in which at one end a tool holder 3 is mounted with a chuck 4, in which a tool (not shown) can be clamped , A shank 3a of the tool holder 3 leads into the housing 2 and is mounted in the housing 2 about a first axis 6 by means of a first bearing device 5. From the illustrations in FIGS. 1 to 4 it can be seen that the first axis 6 is parallel to a horizontal main working direction of the hammer 1, which results from the orientation of the tool holder 3 and corresponds to the longitudinal or striking axis of a tool.
  • a handle 7 is attached to the housing 2 at the level of the first bearing device 5.
  • the handle 7 extends in its longitudinal direction substantially perpendicular to the main working direction of the hammer, whereby, when an operator grips the handle 7 with one hand, a reliable support of the torque by the operator is possible.
  • a jug or spade handle 8 is formed, which the operator can embrace with her main hand.
  • the spade handle 8 is in two places, i. hinged at the top and bottom of the housing 2. As can be seen in the figures, it is ensured by the provision of the spade handle 8 that the gripping position, that is to say the main hand of the operator, is always substantially at height or in height
  • an operating switch 8a is provided in an upper region of the spade handle 8, by the operation of which the operator can put the hammer 1 into operation or out of operation.
  • the operating switch 8a is also arranged approximately in extension of the striking axis in order to obtain the desired gripping position.
  • FIGS. 1 to 4 have in common that an anvil 3b is arranged within the shaft 3a of the tool holder 3 leading into the housing 2.
  • the striker 3b is movable in the shaft 3a in a direction parallel to the axis 6 or to the main working direction.
  • a percussion mechanism 9 is provided, which is designed as a hollow piston percussion.
  • the percussion mechanism 9 in this case has a percussion piston 10, a percussion piston 10 driving in a known manner drive piston 11 and a percussion tube 12 in which the unit consisting of the percussion piston 10 and the drive piston 11 is movably guided parallel to the axis 6.
  • a longitudinal axis of the percussion mechanism 9 is coaxial with the first axis 6.
  • a flange 13 is provided with a guide eye 14 at the end of the drive piston 11, wherein at an area of the percussion tube 12 which extends over the flange 13, an external toothing 15 is formed.
  • the impact mechanism 9 cooperates with a wobble shaft device 16, which is mounted in the housing 2 via a second bearing device 18 and can be rotationally driven about a second axis 17 parallel to the first axis 6.
  • a first pin 19 is provided by a third bearing means 20 on a main body of the wobble shaft means 16 and extends at an angle to the second axis 17.
  • a free end of the first pin 19 is rotatably mounted in the guide eye 14 of the flange 13.
  • the main body of the wobble shaft device 16 has a second pin 21 with an outer toothing 21a, wherein the second pin 21 extends axially parallel to the percussion mechanism 9 or percussion tube 12 such that the outer toothing 21a of the second pin 21 is connected to the outside toothing 15 of the percussion tube 12 is engaged.
  • the above-described wobble shaft device 16 on the one hand enables the hammer mechanism tube 12 of the percussion mechanism 9 to be rotated via the second pin 21, which consequently leads to a rotation of the tool holder 3 for a drilling function of the hammer 1. Furthermore, upon rotation of the wobble shaft device 16 about the second axis 17, the first pin 19 continuously passes from a first working position "A" to a second working position "B” and back again to the first working position "A". By the storage of the free end of the first pin 19 in the guide eye 14 thus the flange 13 and thus the drive piston 11 of the impact mechanism is set in a reciprocating motion parallel to the first axis 6.
  • a coupling device (not shown) can be adjusted accordingly, whether a rotational movement of a motor to be explained below in a rotational movement of the hammer tube 12 or in a striking movement of the drive piston 11 and thus of the percussion piston 10 is converted, or if there is a superposition of the rotational movement of the Schlagwer- krohrs 12 with the translational reciprocation of the drive piston 11 and the percussion piston 10 for a simultaneous drilling and impact of the hammer 1 comes.
  • a tool (not shown) can be inserted into the chuck 4 of the tool holder 3 in such a way that it is held therein in a form-fitting manner in the radial direction, and thus movable in a horizontal direction parallel to the main working direction.
  • the striker 3b is configured such that a first end thereof facing the tool holder 3 adjoins the chuck 4.
  • a percussion 9 facing the second end of the striker 3b extends through the shaft 3a so that it can come into contact with an end face of the percussion piston 10.
  • a rotational movement of the percussion tube 12 via the shaft 3 a to the tool holder 3 transmits, due to a force applied to the hammer 1 contact pressure to a working surface in the chuck 4 recorded end of the tool at the first end abutting the striker 3b, which in turn with its second end abuts the end face of the percussion piston 10.
  • the rotation of the tool holder 3 is transmitted to the in a radial direction positively inserted into the chuck 4 tool so that a drilling function of the hammer 1 can perform.
  • FIG. 1 shows a first embodiment of the hammer 1, in which a three-phase motor 23 is accommodated via a fourth bearing device 24 in the housing 2 above the wobble shaft device 16 and behind the impact mechanism 9.
  • a three-phase motor is generally characterized by the fact that it has a small dimension in the axial direction due to the omission of the otherwise usual in universal motors collector.
  • the axial length of this motor type can also be reduced by the length of the motor bearings, as they can be installed in the region of the winding of the stator in contrast to the universal motor by the absence of a projecting beyond the end faces of the rotor core stack winding on the rotor.
  • a decisive feature of this embodiment is that the rotary current motor 23 is accommodated in the housing 2 in such a way that an axis of rotation 25 of a motor shaft .26 of the three-phase motor 23 is axially parallel with the first axis 6 or the main working direction of the hammer 1.
  • the overall length LGES of the hammer 1 in its longitudinal direction is smaller in comparison to hammers of this power class if a universal motor were installed in such a way that its motor axis would be parallel to the main working direction.
  • shortening in the range of 50 to 70 mm can be assumed.
  • a converter 27 is arranged below the three-phase motor 23 in a region of the housing between the wobble shaft device 16 and the spade handle 8, in order to supply the three-phase motor 23 with energy accordingly.
  • the converter 27 can be suitably fed with single-phase AC line voltage and transforms the mains current into a suitable for the three-phase motor 23 current.
  • the motor shaft 26 of the three-phase motor 23 has, at a free end which is in alignment with a flange toothing 28 formed on the main body of the wobble shaft means 16, an external toothing 29 which is engaged with the flange gear 28. In this way, it is possible to transmit the rotation of the motor shaft 26 of the three-phase motor 23 to the wobble shaft device 16.
  • a second embodiment of the invention is shown in a side sectional view.
  • This second embodiment is largely identical to the first embodiment, wherein the same reference numerals Chen used for the same components, the explanation will not be repeated at this point.
  • the three-phase motor 23 is arranged in a region of the housing 2 below the spade handle 8.
  • the converter 27 is arranged behind the striking mechanism 9 and above the dewing device 16, in each case with respect to the main working direction.
  • a third embodiment of the hammer 1 of which a basic structure is shown in a side sectional view in FIG. 3, an outer shape of the housing 2 is modified in comparison with the first embodiment and the second embodiment in that the three-phase motor 23 is here below Schlagwerks 9 and below the rope melwellen offered 16, each based on the main working direction, is arranged.
  • the converter 27 is formed into a U-shape and disposed above the hammer mechanism 9 and above the wobble shaft means 16, with respect to the main working direction, respectively. Due to the design in the U-shape, it is possible that by the converter 27 spaces in the housing 2 are suitably filled, resulting in compact outer dimensions of the hammer 1.
  • this shape of the arrangement of the converter 27 is advantageous because it takes up very little space in the housing 2. Furthermore, the heat loss generated by the U-shape in the converter 27 can be released efficiently via the housing 2 to the outside.
  • the remaining components of the third embodiment are substantially identical to those of the first and second embodiments.
  • FIG. 4 shows a basic structure of a fourth embodiment, which is essentially identical to the second embodiment explained above.
  • a universal motor 30 is accommodated here in the housing 2 instead of a three-phase motor, which has a larger dimension in the axial direction due to a separate motor bearing outside the winding of the stator. Due to the advantageous arrangement of the universal motor in the housing 2, wherein the axis of rotation 25 of the motor shaft 26 of the universal motor 30 is axially parallel to the main working direction, but also can be in the fourth embodiment, a reduced overall length LQES compared to hammering this power class achieve, if in these the Electric motor would be arranged in the manner shown here in the housing.
  • the various embodiments of the hammer 1 according to the invention due to the above-described design concept, allow a generous dimensioning of the essential components, such as e.g. the first to fourth bearing means 5, 18, 20, 24, the first and second pins 19, 21 and the external teeth 15, 21a, 29, to. This results in a high load capacity and a favorable long life with a superior impact performance of the hammer.

Abstract

L'invention concerne un marteau perforateur et/ou de démolition guidé à la main, au moins de catégorie de poids et de puissance moyenne, qui comprend un moteur électrique (23 ; 30), un outil de percussion (9) pouvant être entraîné et un boîtier (2) dans lequel sont logés le moteur électrique et l'outil de percussion. Une poignée (8) est réalisée sur le boîtier (2), de manière qu'une position de préhension se trouve dans un prolongement d'un axe de percussion (6) de l'outil de percussion (9). Un axe de rotation (25) d'un arbre de moteur (26) du moteur électrique est parallèle à l'axe de l'axe de percussion (6). De par ces mesures, la longueur globale (LGES) dudit marteau perforateur et/ou de démolition (1) est plus petite dans le sens longitudinal.
EP02758385A 2001-07-26 2002-07-24 Marteau perforateur et/ou marteau de demolition muni(s) d'une poignee Expired - Lifetime EP1409206B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10136515 2001-07-26
DE10136515A DE10136515C2 (de) 2001-07-26 2001-07-26 Bohr- und/oder Schlaghammer mit Handgriff
PCT/EP2002/008255 WO2003011531A1 (fr) 2001-07-26 2002-07-24 Marteau perforateur et/ou marteau de demolition muni(s) d'une poignee

Publications (2)

Publication Number Publication Date
EP1409206A1 true EP1409206A1 (fr) 2004-04-21
EP1409206B1 EP1409206B1 (fr) 2005-09-28

Family

ID=7693234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02758385A Expired - Lifetime EP1409206B1 (fr) 2001-07-26 2002-07-24 Marteau perforateur et/ou marteau de demolition muni(s) d'une poignee

Country Status (6)

Country Link
US (1) US6843330B2 (fr)
EP (1) EP1409206B1 (fr)
JP (1) JP4227517B2 (fr)
DE (2) DE10136515C2 (fr)
ES (1) ES2248594T3 (fr)
WO (1) WO2003011531A1 (fr)

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JP5041575B2 (ja) * 2006-03-07 2012-10-03 日立工機株式会社 打撃工具
KR100770217B1 (ko) * 2006-06-12 2007-10-26 삼성전자주식회사 포토레지스트 제거용 조성물 및 이를 이용한 범프 전극의형성 방법
DE102008000677A1 (de) * 2008-03-14 2009-09-17 Robert Bosch Gmbh Handwerkzeugmaschine für schlagend angetriebene Einsatzwerkzeuge
DE102008000687A1 (de) * 2008-03-14 2009-09-17 Robert Bosch Gmbh Handwerkzeugmaschine für schlagend angetriebene Einsatzwerkzeuge
DE112009001126T5 (de) * 2008-05-09 2011-07-21 Milwaukee Electric Tool Corp., Wis. Hilfsgriff für die Verwendung an einem Elektrowerkzeug
US9776296B2 (en) 2008-05-09 2017-10-03 Milwaukee Electric Tool Corporation Power tool dust collector
JP5479023B2 (ja) * 2009-10-20 2014-04-23 株式会社マキタ 充電式電動工具
WO2012024842A1 (fr) * 2010-08-27 2012-03-01 Bosch Power Tools (China) Co., Ltd. Outil électrique à main
DE102010062094A1 (de) * 2010-11-29 2012-05-31 Robert Bosch Gmbh Hammerschlagwerk
US9038745B2 (en) * 2010-12-20 2015-05-26 Brigham Young University Hand power tool and drive train
US9199389B2 (en) * 2011-04-11 2015-12-01 Milwaukee Electric Tool Corporation Hydraulic hand-held knockout punch driver
CN204573232U (zh) 2012-07-31 2015-08-19 米沃奇电动工具公司 多功能阀
DE102012221748A1 (de) * 2012-11-28 2014-05-28 Robert Bosch Gmbh Handwerkzeugmaschine
JP6325360B2 (ja) * 2014-06-12 2018-05-16 株式会社マキタ 打撃工具
US11084006B2 (en) 2017-03-23 2021-08-10 Milwaukee Electric Tool Corporation Mud mixer
CA3148118A1 (fr) 2019-07-29 2021-02-04 Lightmatter, Inc. Systemes et procedes de calcul analogique faisant appel a un processeur photonique lineaire
CN111864978B (zh) * 2020-07-29 2022-12-27 吉林大学 一种孔用耐压柱状直线振动器
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Also Published As

Publication number Publication date
US6843330B2 (en) 2005-01-18
ES2248594T3 (es) 2006-03-16
JP4227517B2 (ja) 2009-02-18
DE50204410D1 (de) 2005-11-03
DE10136515C2 (de) 2003-10-23
WO2003011531A1 (fr) 2003-02-13
US20040104033A1 (en) 2004-06-03
DE10136515A1 (de) 2003-02-13
JP2004535946A (ja) 2004-12-02
EP1409206B1 (fr) 2005-09-28

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