Percussion hammer
    102.
    发明公开
    Percussion hammer 有权
    Schlaghammer

    公开(公告)号:EP1375076A1

    公开(公告)日:2004-01-02

    申请号:EP03013878.8

    申请日:2003-06-19

    发明人: Droste, Manfred

    IPC分类号: B25D16/00 B25D11/06

    摘要: An electrically powered hammer comprising a hammer housing (10) with a hollow cylindrical spindle (4) mounted within it. The hammer has a tool holder arrangement (36) located at a forward end of the spindle for releasably holding a tool or bit (34) within the spindle so as to enable limited reciprocation of the tool or bit within the spindle. An air cushion hammering mechanism is mounted within the spindle for generating repeated impacts on the tool or bit which hammering mechanism includes a piston (24). A motor is mounted within the housing for rotatingly driving an intermediate shaft (6) rotatably mounted in the housing. A wobble drive arrangement (12, 16, 18, 20) reciprocatingly drives the piston (24) and includes a wobble sleeve (12) rotatably mounted on the intermediate shaft (6). A mode change element (72) is selectively engageable, by movement along the intermediate shaft, with a set of drive teeth (74) provided on the intermediate shaft and a set of driven teeth provided on the wobble sleeve, such that when the mode change element (72) is engaged with both sets of teeth it transmits rotary drive from the intermediate shaft (6) to the wobble sleeve (12) so that the wobble sleeve arrangement reciprocatingly drives the piston (24). The mode change ring (72) is formed integrally with at least one axial stop surface (86) and the or each axial stop surface (86) is engageable with a cooperating end stop surface formed integrally with one of the intermediate shaft and the wobble sleeve to limit the movement of the mode change element along the intermediate shaft.

    摘要翻译: 一种电动锤,包括具有安装在其内的中空圆柱形心轴(4)的锤壳体(10)。 锤具有位于心轴的前端的工具架布置(36),用于可释放地将工具或钻头(34)保持在主轴内,以便能够使刀具或钻头在主轴内进行有限的往复运动。 气锤锤击机构安装在主轴内,以产生对工具或钻头的重复冲击,锤击机构包括活塞(24)。 电动机安装在壳体内,用于旋转地驱动可旋转地安装在壳体中的中间轴(6)。 摆动驱动装置(12,16,18,20)往复地驱动活塞(24)并且包括可旋转地安装在中间轴(6)上的摆动套筒(12)。 模式改变元件(72)可以通过沿着中间轴的移动而与设置在中间轴上的一组驱动齿(74)和设置在摆动套筒上的一组从动齿可选地接合,使得当模式改变 元件(72)与两组齿接合,它们将旋转驱动器从中间轴(6)传递到摆动套筒(12),使得摆动套筒装置往复地驱动活塞(24)。 模式转换环(72)与至少一个轴向止动表面(86)一体地形成,并且每个轴向止动表面(86)可与与中间轴和摆动套筒中的一个一体形成的配合端部止挡表面接合 以限制模式改变元件沿着中间轴的移动。

    BOHRHAMMER
    105.
    发明授权
    BOHRHAMMER 失效
    锤子。

    公开(公告)号:EP0552328B1

    公开(公告)日:1995-10-11

    申请号:EP92914235.4

    申请日:1992-07-06

    申请人: ROBERT BOSCH GMBH

    IPC分类号: B25D16/00 B25D17/08

    摘要: 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 drive pinion (12). The locking ring is secured through three rollers (30) to the guide tube (7) providing good torque transmission. The design has the advantage that the whole of the hammer sleeve (6) no longer needs to be hardened, but only the tool holder (8) and the locking ring (9). The guide tube (7) may be of soft steel. The connectors (24, 25, 28) and (30, 31, 32) ensure power transmission over a large area so that the wear on the soft guide tube caused by prior art connecting system is avoided.

    BOHR- UND/ODER SCHLAGHAMMER
    107.
    发明公开
    BOHR- UND/ODER SCHLAGHAMMER 失效
    钻和/或冲击锤。

    公开(公告)号:EP0544865A1

    公开(公告)日:1993-06-09

    申请号:EP92912194.0

    申请日:1992-06-20

    申请人: ROBERT BOSCH GMBH

    IPC分类号: B25D11 B23B45

    摘要: Un marteau perforateur présente un mécanisme de frappe (5) animé d'un mouvement de va-et-vient par un organe moteur (7) pouvant basculer autour d'un axe (16). La transmission de ce mouvement à un frappeur (24) est assurée par un poussoir élastique (15) pouvant basculer autour d'un axe (16). Le poussoir (15) est articulé avec un certain jeu au frappeur (24) pour protéger les paliers contre les réactions du mécanisme de frappe.

    Elektrisch betriebene Handwerkzeugmaschine
    108.
    发明公开
    Elektrisch betriebene Handwerkzeugmaschine 失效
    Elektrisch betriebene Handwerkzeugmaschine。

    公开(公告)号:EP0437716A1

    公开(公告)日:1991-07-24

    申请号:EP90123210.8

    申请日:1990-12-04

    申请人: ROBERT BOSCH GMBH

    IPC分类号: B25D11/10 B25D16/00

    CPC分类号: B25D11/062 B25D16/006

    摘要: Bei einer in verschiedene Betriebszustände schaltbaren Handwerkzeugmaschine soll die Montage des dafür vorgesehen Drehschalters vereinfacht werden. Der Drehschalter ist als ein in ein Gehäuse (2) eingesetzter Schaltknebel (37) ausgebildet, der mittels einer Renkverbindung (41, 42, 44, 46) mit dem Gehäuse (2) verbunden ist. Die Renkverbindung gestattet eine Montage beziehungsweise Demontage des Schaltknebels (37) nur bei tief eingedrücktem Schaltknopf (54) in einer einzigen Drehstellung, die außerhalb der Schaltwege des Schaltknebels (37) liegt. Dies wird erreicht durch verschieden große und verschieden geformte Zähne (44, 46) die nur in der Montagestellung in zugeordnete gleichförmige Aussparungen in der Ringscheibe (42) eingesetzt werden können. Die Schaltbewegung des Schaltknebels (37) wird über einen exzentrischen Schaltfinger (36) und eine Schaltfeder (30) auf entsprechende Kupplungs- oder Getriebeteile der Handwerkzeugmaschine übertragen.

    摘要翻译: 在能够切换到各种操作状态的手工工具中,为了简化其设置的旋转开关的安装。 旋转开关构造成开关旋钮(37)的形式,其被插入到壳体(2)中并且通过卡口连接(41,42,44,46)连接到壳体(2)。 只有当按钮(54)在位于开关旋钮(37)的接触路径外侧的单个旋转位置中被长时间按压时,卡口连接才能安装或拆卸开关旋钮(37)。 这是通过不同尺寸和形状的齿(44,46)来实现的,其只能在安装位置插入到环形盘(42)中分配的相同形状的孔中。 开关旋钮(37)的切换运动经由偏心开关指(36)和开关弹簧(30)传递到手动工具的对应联轴器或传动部件。

    Device for driving a drilling and/or impacting tool
    110.
    发明公开
    Device for driving a drilling and/or impacting tool 失效
    用于钻探和/或冲击刀具驱动装置。

    公开(公告)号:EP0145070A2

    公开(公告)日:1985-06-19

    申请号:EP84201720.4

    申请日:1984-11-23

    IPC分类号: B23B45/16

    摘要: A device for driving a drilling and/or impacting tool comprising a shaft (1), which is arranged, if necessary, in a rotatable manner in a housing (6), and one end of which is adapted to be fastened to the tool, whereas the other end is accessible to an oscillating impact body (26) which is movable by means of a sliding or pivotal guide (27, 50) in the housing (6), whilst a rotatable driving shaft (14) through a transmission (7-13) can set moving the tool shaft (1) and/or the impact body (26), wherein the transmission (7-13) is provided with means (15-18) for converting the rotary movement of the driving shaft (14) into an oscillatory movement of a driving element (21), which is connected through an elastic member (23) with the impact body (26), said elastic member (23) preferably having a non-linear spring characteristic curve, whereby said impact body (26) will lag with respect to the driving element (21) because of the interposed elastic member, whilst in addition the cinetic energy can be flexibly picked up and transferred to the optimum to the tool shaft (1).