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1. 发明公开

EP1090717A2 Reciprocating and rotary power tool 审中-公开
标题翻译： Hin und。。。。。。。。。。
公开(公告)号：EP1090717A2
公开(公告)日：2001-04-11
申请号：EP00306883.0
申请日：2000-08-11
申请人： The Chamberlain Group, Inc.
发明人： Schuda, David.J , Chessa, Barbara , Iverson, David
IPC分类号： B24B23/03 , B25F3/00
CPC分类号： B23Q37/002 , B23Q5/027 , B23Q5/04 , B24B23/03 , B24B47/12 , Y10S279/906 , Y10T279/17153 , Y10T279/17786 , Y10T408/95
摘要： An apparatus (10) is provided that allows a working element to undergo either rotary or reciprocating motion via a transmission system (12) that is very compact in terms of the amount of space it requires to convert the rotary output of the motor (24) into either rotary or reciprocating output of an output shaft (25) operably connected to the working element. The apparatus (10) has a barrel cam transmission including input (26) and output (28) members between which a clutch (30) and cam mechanism (22) are disposed for providing a rotary/reciprocating transmission system (12) with a compact design. The transmission (12), and in particular the clutch (30) and cam mechanism (22) thereof, has a sturdy construction to allow it to withstand shock forces such as axial loading that may be placed on the working element and transmitted to the transmission system (12) during tool operations without disruption of the same. Further, a collet assembly (14) is provided that securely holds tool bit shafts (16) therein while allowing them to be readily and easily interchanged. The collet assembly (14) herein has a very few number of parts and is easily assembled without the need for any special tools or machines thereof. In a preferred form, the collet assembly (14) provides for release of the tool shaft (16) by a forward sliding action of a collet sleeve (174). In this manner, rearward forces acting on the sleeve (174) in an axial direction such as can occur during tool operations will not cause the tool shaft (16) to be accidentally released. Another advantage is the use of a retaining member for releasably holding the shaft (16). The retaining member (176) avoids the use of detent balls as in prior collets which can require ramp surfaces formed to very precise tolerances to engage and shift the balls into and out of a holding position on the shaft (16).
摘要翻译：提供一种设备（10），其允许工作元件经由传动系统（12）进行旋转或往复运动，所述传动系统（12）在转换马达（24）的旋转输出所需的空间量方面非常紧凑，进入可操作地连接到工作元件的输出轴（25）的旋转或往复输出。设备（10）具有桶形凸轮传动装置，其包括输入（26）和输出（28）构件，离合器（30）和凸轮机构（22）之间设置有离合器（30）和凸轮机构（22），用于提供具有紧凑的旋转/往复式传动系统设计。变速器（12），特别是其离合器（30）和凸轮机构（22）具有坚固的结构，以允许其承受诸如可放置在工作元件上并传递到变速器的轴向负载的冲击力系统（12）在工具操作期间不中断它。

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