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Powered oscillating hand tool

A hand tool, power-driven technology, used in manufacturing tools, metal processing equipment, portable grinding machines, etc., can solve the problems of high production cost and difficult operation.

Inactive Publication Date: 2002-11-13
BLACK & DECKER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Common disadvantages of the above-mentioned prior art are that they are expensive to produce and difficult to operate, especially when a grinding machine may be used

Method used

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  • Powered oscillating hand tool
  • Powered oscillating hand tool
  • Powered oscillating hand tool

Examples

Experimental program
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Embodiment Construction

[0018] FIG. 1 shows a sanding device 10 comprising a drive unit 2 with an electric motor 4 and a drive shaft 8 in a housing 6 . A fan 12 mounted on the shaft 8 is arranged to draw air from an opening 14 of a top plate 16 permanently mounted on the sanding device 10 and direct the air through a separation duct 18 to an exhaust outlet 20 . Nuts are used to fix the top plate 16 (see FIG. 2 ) to the second drive shaft 24 seated in the fan 12 by means of bearings ( 26 ) arranged radially and eccentrically with respect to the shaft 8 .

[0019] Three elastic struts 28 made of rubber are arranged around the drive shaft 8 . The upper end 30 of each elastic strut 28 is fixed in the housing 6 , and the lower end 32 is located in a recess 34 provided in the top plate 16 .

[0020] A wear plate 36 is removably mounted on top plate 16, to which reference will be made to FIGS. image 3 To elaborate.

[0021] The platen 36 is driven by the electric motor 4 through the shafts 8,24. A thin ...

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PUM

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Abstract

A powered oscillating hand tool (10) comprises (a) a drive unit (2) having an electric motor (4) and a drive shaft (6); (b) a bearing (26) mounted on the drive shaft (8) and located radially eccentrically relative to the drive shaft (8); (c) a second drive shaft (24) mounted on the eccentric bearing (26); (d) a carrier plate (16) mounted on the second drive shaft (24) and (e) a platen (36) for mounting on the carrier plate (16). The carrier plate (16) is provided with a first engagement means (44) and the platen is provided with second engagement means (54) to engage with the first engagement means (44) by rotation of the platen (36) relative to the carrier plate (16). The first and second engagement means together comprise a bayonet fitting. <IMAGE>

Description

technical field [0001] The present invention relates to a power-driven vibrating hand tool, and more particularly to a power-driven vibrating hand tool comprising a drive assembly having a power drive motor with a drive shaft to which a sander head is mountable. Background technique [0002] In a typical orbital-type grinder with a profiled guide, the drive system includes an eccentric that is constrained so that the grinder guide cannot rotate independently of the motor so that it follows a regular orbit . These grinders are available in a range of guide plate shapes and are typically used to remove smaller quantities of material, such as for fine workpieces or finishing operations. The bottom of the guide plate can be provided with a surface, in particular a hooked surface, on which the abrasive sheet can be mounted. [0003] European patent 610801 describes a sander having a triangular guide plate which can be removed from the body of the sander by means of an operating...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24B23/04B24B23/03
CPCB24B23/03B24B23/04
Inventor 科林·达菲
Owner BLACK & DECKER INC
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