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公开(公告)号：US3906266A
公开(公告)日：1975-09-16
申请号：US44470074
申请日：1974-02-22
发明人： COWMAN GEORGE WILBUR
IPC分类号： B23D47/00 , B23D47/12 , B23Q1/00 , B23Q11/00 , F16F15/30 , H02K7/02 , H02K7/14 , H02K9/00 , H02K9/06
CPC分类号： B23D47/12 , B23D47/005 , B23Q1/0009 , B23Q11/0032 , F16F15/30 , H02K7/02 , H02K7/145 , H02K9/00 , H02K9/06 , Y02E60/16
摘要： A high inertia cooling fan for a power device driven by an electric motor is provided. The fan includes a generally circular body of insulating material, e.g., plastic, including a hub to permit the fan to be mounted on the motor shaft, an annular flange extending radially outward from the hub, and a plurality of fan blades at the periphery of the annular flange. A weight of relatively heavy material, e.g., metal, is secured to the annular flange between the hub and the fan blades to increase the inertia of the fan. The body of insulating material allows the fan to serve as an insulation barrier between the electric motor and other electrically conductive components of the power device, and the weight provides increased inertia to allow the fan to act as a flywheel to reduce vibrations in the operation of the device.
摘要翻译： 提供了一种用于由电动机驱动的动力装置的高惯性冷却风扇。 该风扇包括一般为圆形的绝缘材料，例如塑料，包括一个允许风扇安装在电动机轴上的轮毂，一个从轮毂径向向外延伸的环形凸缘，以及多个风扇叶片 环形法兰。 相当重的材料（例如金属）的重量固定到轮毂和风扇叶片之间的环形凸缘，以增加风扇的惯性。 绝缘材料体允许风扇用作电动机和动力装置的其它导电部件之间的绝缘屏障，并且重量提供增加的惯性，以允许风扇充当飞轮以减少操作中的振动 装置。
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公开(公告)号：US3876014A
公开(公告)日：1975-04-08
申请号：US44029374
申请日：1974-02-07
CPC分类号： B25D16/006 , B23B45/008
摘要： A rotary hammer having a rotation stop control trigger mounted adjacent to one end of a torque handle assembly, the torque taking handle assembly and the trigger being capable of being disposed in various positions on the housing of the rotary hammer. The rotation stop control trigger engages a driven clutch element which is keyed on an output shaft and is longitudinally slidable about the output shaft, the output shaft being in turn mounted so that its axis is parallel to the axis of rotation of the tool holder of the rotary hammer. The rotation stop control trigger is pivotally mounted in mounting means which also supports the torque taking handle, and the mounting means can be shifted to various selected fixed positions about the axis of the output shaft.
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3.发明授权Trigger mechanism for hand-operated power device providing automatic lock-off and manual lock-on operation 失效用于提供自动关闭和手动锁定操作的手动电源装置的触发机构
公开(公告)号：US3847233A
公开(公告)日：1974-11-12
申请号：US37516073
申请日：1973-06-29
摘要： A trigger mechanism for a hand-operated power tool includes a trigger and a manually operable locking device which provides an automatic lock-off feature to normally lock the trigger in its inoperative position, a manual unlock feature to permit the trigger to be unlocked for movement between its inoperative and operative positions, and a manual lock-on feature to permit the trigger to be locked in its operative position. The locking device is capable of two (2) distinct modes of movement, a first mode which permits the trigger to be unlocked for movement between its inoperative and operative positions for manual control, for example, on-off operation of the power tool and a second mode which permits the trigger to be locked in its operative position for continuous operation of the tool. A positive intentional action by an operator is required to shift the locking device from its first mode of movement to its second mode of movement to prevent inadvertent movement of the locking device to its lock-on position. Furthermore, the locking device can be shifted to its second mode of movement only after the trigger is in its operative position.
摘要翻译： 用于手动电动工具的触发机构包括触发器和可手动操作的锁定装置，其提供自动锁定特征以将触发器正常锁定在其不工作位置，手动解锁特征以允许触发器被解锁以便移动 在其不操作和操作位置之间，以及手动锁定功能，以允许触发器被锁定在其操作位置。 锁定装置能够具有两种不同的运动模式，即允许触发器在其不操作和操作位置之间移动以进行手动控制的第一模式，例如电动工具的开 - 关操作和 第二模式，其允许触发器被锁定在其工作位置以用于工具的连续操作。 需要操作者的积极有意的动作，以将锁定装置从其第一运动模式转移到其第二运动模式，以防止锁定装置无意地移动到其锁定位置。 此外，只有在触发器处于其操作位置之后，锁定装置才能移动到其第二移动模式。
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公开(公告)号：US3845336A
公开(公告)日：1974-10-29
申请号：US7711370
申请日：1970-10-01
发明人： ALSRUHE L , MOORES R , MCCAFFERTY L
IPC分类号： F16C35/067 , F16C35/077 , F16C37/00 , H02K5/173 , H02K9/00
CPC分类号： H02K5/1732 , F16C19/06 , F16C35/067 , F16C35/077 , F16C37/007 , F16C2380/26
摘要： A portable electric device comprising a housing having an electric motor disposed therein. The motor includes a rotatable shaft carried by bearings supported upon the housing. The housing includes a portion supporting at least one of the bearings and formed from an electrically insulating material, which also has low thermal conductivity. In order to insure adequate cooling of this bearing, this housing portion is constructed to facilitate the passage of cooling air around and past the one bearing during operation of the motor.
摘要翻译： 一种便携式电气设备，包括其中设置有电动机的壳体。 马达包括由支撑在壳体上的轴承承载的可旋转轴。 壳体包括支撑至少一个轴承并由电绝缘材料形成的部分，其也具有低导热性。 为了确保该轴承的足够冷却，该壳体部分被构造成便于在电动机操作期间使冷却空气在其周围通过一个轴承。
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公开(公告)号：US3838300A
公开(公告)日：1974-09-24
申请号：US39153173
申请日：1973-08-27
发明人： O CONNOR W
CPC分类号： H02K5/148
摘要： An electrically operated portable tool including a housing enclosing a motor including a stationary field and a rotatable armature. The housing includes a rear bridge supporting one end of an armature shaft and including open slots for receiving brush holders, the latter holding carbon brushes engaging a commutator which is part of the armature. The brush holders are retained in place by a holder which is integral with a rear butt section of the housing, thereby eliminating separate brush assembly retention screws and preventing accidental dislodgment of the brush assemblies as well as orienting and maintaining the brush assemblies in their assembled operative positions.
摘要翻译： 一种电动便携式工具，其包括包围电动机的壳体，该电动机包括静止场和可旋转的电枢。 壳体包括支撑电枢轴的一端的后桥，并且包括用于接收电刷架的敞开的槽，后者夹持碳刷与衔铁的一部分的换向器接合。 刷子保持器通过与壳体的后部对接部分成一体的保持器保持在适当位置，从而消除了单独的刷子组件固定螺钉，并且防止了刷子组件的意外移动，以及将刷子组件定向和保持在组装的操作中 职位
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公开(公告)号：US3835935A
公开(公告)日：1974-09-17
申请号：US34286573
申请日：1973-03-19
CPC分类号： B25D11/005
摘要： An electric paving breaker is described which includes an electric motor, a crank and piston driven by the motor, and a ram driven by the piston which delivers energy to a tool bit to produce a hammering output. An improved idling system to prevent the piston from driving the ram unless a tool bit is in place is described.
摘要翻译： 描述了一种电动摊铺机，其包括电动机，由电动机驱动的曲柄和活塞，以及由活塞驱动的活塞，其将能量传递到工具钻头以产生锤击输出。 描述了一种改进的怠速系统，以防止活塞驱动冲击器，除非工具头就位。
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公开(公告)号：US3768163A
公开(公告)日：1973-10-30
申请号：US3768163D
申请日：1972-02-23
摘要： A portable, powered grass or hedge trimmer or the like comprising a housing enclosing a motor and having a handle and trigger means disposed thereon. A plurality of relatively movable blades are provided, and at least one blade is driven by the motor. The blades include cooperable teeth adapted to cut grass or the like. A novel sharpening device is provided and includes a body or sheath provided with abrasive stones adapted to sharpen the teeth of at least one blade when the motor is energized and the blades moved relative to one another. The sheath, when in place, can also protect one or more of the blades and thereby helps prevent accidental injury when the device is not in use.
摘要翻译： 一种便携式，动力草地或树篱修剪器等包括封闭马达并具有设置在其上的手柄和触发装置的外壳。 提供多个相对可动的叶片，并且至少一个叶片由马达驱动。 叶片包括适于切割草或类似物的配合齿。 提供了一种新颖的磨削装置，其包括当电动机通电并且叶片相对于彼此移动时设置有适于锐化至少一个叶片的齿的磨料的主体或护套。 护套在适当位置时也可以保护一个或多个刀片，从而有助于防止在不使用设备时的意外伤害。
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公开(公告)号：US3759019A
公开(公告)日：1973-09-18
申请号：US3759019D
申请日：1972-09-06
发明人： WELLS K
CPC分类号： A01D34/58 , A01D34/475 , A01D2101/00
摘要： An electric lawnmower including a frame supported for movement over the ground by wheels. A reel is supported upon the frame and cooperates with a bedknife to cut grass as the mower travels along the ground. An electric motor drives the reel and includes fastening means interconnecting its parts and attaching it upon the frame. In addition, the frame is constructed to accommodate different sizes (and capacities) of motors.
摘要翻译： 一种电动割草机，其包括支撑用于通过车轮在地面上运动的框架。 卷轴支撑在框架上，并与割草机配合，当割草机沿着地面行进时切草。 电动机驱动卷轴并且包括将其部件互连并将其附接在框架上的紧固装置。 此外，该框架被构造成适应不同尺寸（和容量）的电动机。
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公开(公告)号：US3737987A
公开(公告)日：1973-06-12
申请号：US3737987D
申请日：1971-05-26
发明人： BEDNARSKI T
CPC分类号： H02K1/30 , H02K15/028 , Y10T29/49009 , Y10T29/49011 , Y10T29/49012
摘要： An armature including a sleeve of insulating material bonded in place between the armature shaft and the armature laminations. The insulating sleeve may extend under the commutator if desired. A method of providing this armature is also described which comprises holding the laminations, the sleeve and the shaft in their relative positions and injecting a bonding material between the sleeve and the shaft and between the sleeve and the laminations.
摘要翻译： 一个电枢，包括一个绝缘材料的套筒，粘合在电枢轴和衔铁叠片之间。 如果需要，绝缘套管可以在换向器下方延伸。 还描述了提供该电枢的方法，其包括将叠片，套筒和轴保持在其相对位置，并且在套筒和轴之间以及套筒和叠片之间注入接合材料。
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公开(公告)号：US3734459A
公开(公告)日：1973-05-22
申请号：US3734459D
申请日：1972-02-28
发明人： SAUERWEIN W , MELONI R , WALTER H
CPC分类号： B23B45/04
摘要： A portable tool including a housing having a rotary pneumatic motor disposed therein and coupled to a tool spindle. Compressed air is delivered to the motor by conduit means which includes passage means in a handle dependent from the housing. A throttle valve is disposed within the handle and is controlled by a trigger pivoted upon the handle. The trigger and handle are provided with novel adjustable stop means to limit trigger movement.
摘要翻译： 一种便携式工具，其包括具有设置在其中并与工具主轴连接的旋转气动马达的壳体。 压缩空气通过导管装置输送到电动机，导管装置包括从壳体上取下的手柄中的通道装置。 节流阀设置在手柄内并由枢转于手柄的扳机控制。 触发器和手柄提供了新的可调节止动装置，以限制触发器运动。
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