Nail gun

A nail gun and nail technology, applied in the field of nail guns, can solve the problem that various pressure ranges cannot be effectively used

Inactive Publication Date: 2005-02-16
POLY SYST PTY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A disadvantage of these conventional nail guns is that one gun cannot be used effectively for various pressure ranges

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] figure 1 A nail gun 1 according to an embodiment of the present invention has been described. The nail gun 1 is a hand-held tool used in woodworking and construction.

[0018] The nail gun 1 includes a 250cc liquid carbon dioxide (CO 2 ) reservoir 2, the liquid carbon dioxide is transformed into "supercritical fluid" or "high concentration gas" as an explosive energy source by phase transition to push out or shoot out the nail 3. The nail gun 1 includes a high-pressure chamber 4, liquid CO 2 A phase change occurs in it and it is transformed into a high-concentration gas. The high pressure chamber is in fluid communication with a barrel 23 via a gas shutoff valve 24 . The CO is heated by a heating element 5 powered by a battery pack 6 similar in size and shape to a conventional cordless drill battery pack. 2 heating. In this embodiment, the piston slider 7 located in the bore 8 moves the CO through the plunger 16 2 The burst can be mechanically transmitted to the ...

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PUM

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Abstract

Nail gun (1) comprises barrel (23) and loading mechanism (20) for loading nail from magazine (19) into muzzle (14). Nail (3) is adapted to be propelled by punch (16) via piston shuttle (7) movable by a gas propellant that is initially stored as a liquid in reservoir (2). The liquid is heated to a super critical state in high-pressure chamber (4) by heating element (5) to induce a phase change such that the liquid becomes a highly dense gas. The phase change from liquid to gas provides the energy required to expel nail (3) from muzzle (14), regardless of the ambient temperature. The propellant is preferably CO2 which is heated to 31.06° C. Pressure selector (9) allows for different pressure settings suitable for softwood, hardwood and masonry nailing applications. Gun (1) produces minimal noise and so reduces workplace noise pollution.

Description

technical field [0001] The present invention relates to a nail driver for use in the carpentry and construction industries, and in particular to a nail driver that uses a propellant initially stored in a liquid phase and transformed into a gas by a phase change to propel a nail. Background technique [0002] There are three main types of known nail guns. A compressed air gun for softwood, a butane powered gun for hardwood, and a cartridge type gun for concrete, all of which operate in different pressure ranges. One disadvantage of these conventional nail guns is that one gun cannot be used effectively for various pressure ranges. [0003] The present invention aims to provide a nail gun that overcomes the above-mentioned disadvantages of conventional nail guns by using high-pressure, high-concentration gas initially stored as a liquid as a propellant. Contents of the invention [0004] According to a first aspect, the present invention is a nail gun comprising: [0005]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25C1/04B25C1/00F41B11/32F41B11/62
CPCB25C1/00F41B11/72F41B11/62F41B11/723F41B11/57F41B11/724F41B11/71
Inventor R·C·韦布
Owner POLY SYST PTY LTD
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