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Dust collection device and impact tool

A technology of dust collection device and impact tool, which is applied in the field of impact tools, can solve the problems of increased distance and poor stability of installation state, and achieve the effects of stable installation state, improved installation state, and improved collection efficiency

Active Publication Date: 2013-03-20
MAKITA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the case of the above-mentioned existing dust collecting device, it is formed to hold the base of the cylindrical cover at the front end region of the tool body. Since the cover extends from the holding part toward the front end of the drill bit, the holding of the cover The distance from the part to the front end increases, so that the stability of the installed state deteriorates

Method used

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  • Dust collection device and impact tool
  • Dust collection device and impact tool
  • Dust collection device and impact tool

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Experimental program
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no. 1 Embodiment approach ）

[0035] Below, refer to Figure 1~Figure 8 The dust collector according to the first embodiment of the present invention will be described. The present embodiment will be described with application to an electric hammer as an example of an impact tool. figure 1 It is shown that the electric hammer 101 is equipped with a side handle 110 as an auxiliary handle, and the electric hammer 101 is equipped with a dust collecting device 140 on the side handle 110 . refer to figure 1 The structure of the electric hammer 101 will be briefly described. The electric hammer 101 is generally configured as a main body as follows: a main body portion 103 forming the outer shell of the electric hammer 101; The strip-shaped hammer bit 119 shown on the left side); and the handle 109 as the main handle connected to the side of the main body 103 opposite to the hammer bit 119 for the user to hold. The main body portion 103 corresponds to a "tool main body" in the present invention, and the hamme...

no. 2 Embodiment approach ）

[0060] Next, refer to Figure 9 A second embodiment of the present invention will be described. This embodiment is a modified example related to the dust collecting cover 191 in the dust collecting device 140 . The dust collecting cover 191 according to this embodiment is mainly composed of: a cylindrical portion 193 slidably fitted to the shaft portion 119 b of the hammer bit 119 ; The cylindrical cover part 195 extending substantially parallel to the part 193 . That is, the dust collecting cover 191 is configured to be held by the hammer bit 119 via a substantially cylindrical cylindrical portion 193 slidably fitted to the shaft portion 119 b of the hammer bit 119 .

[0061] On the other hand, the cylindrical cover body portion 195 has a dust suction port 195a at the tip (front end), and an end portion 195b on the opposite side to the dust suction port 195a is opened as a dust outlet and is formed in a tapered shape toward the rear. Approximate trumpet shape. Thereby, th...

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PUM

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Abstract

Disclosed is a feature that contributes to an improvement in the attachment to an impact tool of a dust collection device that is attached to the impact tool and that collects dust particles that said impact tool generates. The dust collection device (140) collects dust that the impact tool (101) generates and is attached to said impact tool (101) that, in the lengthwise direction, linearly operates a tool bit (119) that is mounted to the tip region of a tool body (103). The dust collection device (140) has: a dust collection unit (141, 143) that has a dust intake port (141a) at the tip; and a dust transfer unit (146) that is connected with the dust collection unit (141, 143) in order to transfer dust sucked in from the dust intake port (141a) towards the downstream side. The dust collection unit (141, 143) is held by the shaft section (119b) of the tool bit (119), and the dust transfer unit (146) is held by the tool body (103).

Description

technical field [0001] The present invention relates to a dust collecting device for collecting dust generated by an impact tool, and an impact tool provided with the dust collecting device. Background technique [0002] For example, in an impact tool that uses a tool bit to perform processing operations such as hammering or impact drilling on a material to be processed such as concrete, dust is generated during processing. Therefore, some of the conventional impact tools include a dust collector for collecting dust generated during machining. For example, Japanese Patent Application Laid-Open No. 2007-303271 discloses a dust collector configured to arrange a cylindrical cover so as to surround the tool bit, and to open from the front end of the cover. Dust generated by processing operations is sucked, and dust is collected through the duct and the dust transfer passage in the main body of the working machine. [0003] In the case of the above-mentioned existing dust colle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25D17/18B23Q11/00
CPCB25D17/04B23Q11/0046B23Q11/00B25F5/026B25D11/00
Inventor 生田洋规山内宪花井贵将三轮正夫鹈饲智大若槻周作伊藤晃浩
Owner MAKITA CORP