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Drive-in tool

A technology for driving into tools and top covers, which is applied in the direction of nailing tools, manufacturing tools, portable motorized devices, etc. It can solve problems such as gas leakage, deformation of exhaust hoods, noise, etc., and achieve high sealing performance and prevent gas leakage.

Active Publication Date: 2013-05-15
MAKITA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in the above-mentioned existing structure, if the pressure of the compressed gas is normal pressure (about 8kg / cm 2 ) is no problem, but the pressure of the compressed gas is a high pressure (about 23kg / cm 2 ), the entire resin exhaust cover is deformed under high pressure, etc., and sufficient sealing performance (airtightness) cannot be ensured only by elastically pressing the protrusion. Gas leaks from parts other than the port, and as a result, there may be a problem of noise due to the gas leak

Method used

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Examples

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Embodiment Construction

[0028] Second, based on Figure 1 to Figure 5 Embodiments of the present invention will be described. figure 1 The driving tool 1 according to this embodiment is shown in . This driving tool 1 is a nail driver using compressed air as a driving source, and includes a main body 2 , a driving unit 3 , a handle 4 , and a magazine 5 .

[0029] A cylindrical cylinder 11 and a piston 12 that reciprocates in the cylinder 11 by compressed gas are installed in the main body 2 . The cylinder block 11 is housed so as to straddle the interior of the cylindrical main body case 10 and the interior of the magnesium top cover 16 joined to the upper part of the main body case 10 . At the center of the lower surface of the piston 12, a driver 13 for striking the driving part is installed. The driver 13 extends downward in the cylinder 11 , and its front end reaches the driving portion 3 .

[0030] Such as image 3 As shown, a cylindrical overhead valve 20 is built in around the upper side o...

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Abstract

The invention provides a drive-in tool. In a compressed-gas drive type drive-in tool, for an exhaust cover disposed at a back part of a main body part, a condition that gas leakage is generated at other parts besides a current exhaust opening with a noise elimination filter is provided, in the drive-in tool, gas leakage at the other part besides the exhaust opening is prevented, and silence of the drive-in tool is realized. The drive-in tool is formed to be provided with the following structure: a sealing part (32) with a soft resin material as a raw material is arranged along a front end of a circumferential wall (31a) of an exhaust cover (30) via shaping of an embedding member, and the sealing part (32) is embedded into a sealing concave part (16c) of a top cover (16), thereby preventing gas leakage of a second exhaust chamber (26) besides the exhaust opening (34) provided with the noise elimination filter (34a).

Description

technical field [0001] The present invention relates to driving tools such as nailing machines using compressed air as a driving source. Background technique [0002] Such a driving tool includes: a tool main body in which a piston reciprocatingly moves using compressed gas as a driving source; a driving part that drives out a driving part through the action of the tool main body; and The handle part is provided in a state protruding sideways from the side part of the tool body part. This driving tool has a structure in which compressed gas is supplied to the upper chamber of the piston of the tool main body by pulling and pulling the switch lever provided at the base of the handle, and the thrust of the supplied compressed gas drives the piston provided on the piston. The driver that hits the driving tool moves downward instantaneously, and the driver that moves down hits a driving part supplied to the driving part to drive the driving part out from the front end (injectio...

Claims

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Application Information

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IPC IPC(8): B25C1/04B25F5/00
Inventor 纸元顺平西土典之
Owner MAKITA CORP
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