WO2007010959A1 - 打ち込み工具 - Google Patents
打ち込み工具 Download PDFInfo
- Publication number
- WO2007010959A1 WO2007010959A1 PCT/JP2006/314339 JP2006314339W WO2007010959A1 WO 2007010959 A1 WO2007010959 A1 WO 2007010959A1 JP 2006314339 W JP2006314339 W JP 2006314339W WO 2007010959 A1 WO2007010959 A1 WO 2007010959A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cylinder
- head valve
- wall
- striking
- exhaust port
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
- B25C1/041—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure with fixed main cylinder
- B25C1/042—Main valve and main cylinder
Definitions
- the present invention relates to a low overall height structure of a driving tool that can reduce the overall height.
- a main air chamber for storing compressed air is disposed inside the body of a driving tool such as a nailing machine or a screw driving machine.
- the main air chamber communicates with the grip, and an inlet for communicating with a compressed air supply source is formed at the rear end of the grip.
- a striking cylinder for slidably housing a striking piston coupled with a nail driving driver is disposed inside the main chamber.
- a head valve is provided at the top of the impact cylinder.
- the driving tool has a lower overall height and is lighter and easier to handle!
- it is convenient to use between the studs in the conventional method and between studs in the two-by-four method when the overall height of the driving tool is low. For this reason, there is a strong demand for a low-height body in these applications.
- the body is provided with members such as a striking cylinder and a cylindrical head valve.
- the height of the striking cylinder cannot be lowered because it relates to the output. For this reason, the position of the head valve and the exhaust structure must be devised.
- the head valve is arranged at the upper part of the impact cylinder, the cylinder cap is provided thereon, and the exhaust cover is further arranged thereon. Therefore, first, a method of exhausting to the side was considered. This eliminates the top exhaust cover and reduces the overall height. In addition, as disclosed in Japanese Utility Model Publication No. 06-045336, a method of arranging the head valve outside the striking cylinder was considered. As a result, the overall height of the body Since the height of the head valve is lower, the total height will be even lower when the exhaust structure is improved.
- An object of the present invention is to provide a low-height structure capable of solving the above-described problems and realizing a low overall height by reducing the number of parts and reducing the cost. Disclosure of
- a driving tool includes a striking cylinder that slidably accommodates a striking piston that is coupled to a nail driving driver and is disposed inside a hollow body.
- a main air chamber that stores compressed air disposed outside the striking cylinder, covers the striking cylinder and the main air chamber fixed to the top of the body, opens and closes the cylinder cap, and opens and closes the main air chamber and the striking cylinder.
- a cylindrical head valve having the same upper and lower outer diameters. The lower part of the steam head valve is arranged outside the blow cylinder.
- a cylindrical inner wall and a cylindrical outer wall are integrally formed on the lower surface of the cylinder cap.
- a piston stop that defines the top dead center of the striking piston is provided inside the cylindrical inner wall.
- the head valve is slidably provided between the cylindrical inner wall and the cylindrical outer wall.
- an exhaust port may be formed through the lower portion of the side wall of the cylinder cap and the head valve.
- an exhaust cover is disposed outside the exhaust port on the side wall of the cylinder cap, and the exhaust force is increased. Exhaust port force formed at the bottom of the bar can also be exhausted through the filter.
- the lower part of the head valve is disposed outside the impact cylinder, and the head valve slides between the cylindrical inner wall and the cylindrical outer wall formed on the lower surface of the cylinder cap. Since it is movably provided, it is not necessary to provide a special head valve guide. Therefore, a low overall height can be realized, the number of parts is reduced, and the structure is simplified, so that the cost can be reduced.
- the driving tool can be made to have a low overall height.
- the filter when exhaust is performed through a filter such as an exhaust port formed at the lower portion of the exhaust cover, the filter can be disposed and fixed between the side wall of the cylinder cap and the exhaust cover. For this reason, it is sufficient to fix only the exhaust cover to the cylinder cap with a bolt. Therefore, the number of bolts can be reduced.
- FIG. 1 is a longitudinal sectional view of an entire nailing machine according to an exemplary embodiment of the present invention.
- FIG. 2 is a front view of the whole body of the nailing machine.
- FIG. 3 is a partially enlarged cross-sectional view taken along line XX in FIG.
- FIG. 4 is a partially enlarged cross-sectional view when the head valve is operated.
- reference numeral 1 denotes a body of a nailing machine (driving tool).
- the body 1 is formed hollow, and a hollow grip 2 is provided on one side thereof.
- the end of the grip 2 can be connected to a compressed air supply source via an air hose.
- a nose portion 31 having a nail injection port is formed below the body 1.
- a striking cylinder 6 that slidably accommodates a striking piston 5 coupled with a nail driver 4 is disposed, and outside the striking cylinder 6 is a main that stores compressed air.
- An air chamber 7 is placed inside the body 1, and outside the striking cylinder 6 is a main that stores compressed air.
- An air chamber 7 is placed. The main air chamber 7 communicates with the grip 2 described above.
- a cylinder cap 8 that covers the impact cylinder 6 and the main air chamber 7 is fixed to the upper portion of the body 1.
- a cylindrical inner wall 10 and a cylindrical outer wall 11 are integrally formed on the lower surface of the cylinder cap 8. Inside the cylindrical inner wall 10 is provided a piston stop 12 that receives the upper surface of the impact piston 5 and defines its top dead center.
- an annular groove is formed between the cylindrical inner wall 10 and the cylindrical outer wall 11, and a cylindrical head valve 13 is slidably accommodated in the inner portion thereof.
- the head valve 13 opens and closes the main air chamber 7 and the striking cylinder 6.
- the upper and lower outer diameters are the same, and the lower part of the head valve 13 is disposed outside the striking cylinder 6. .
- the lower end of the head valve 13 and the lower end of the cylindrical outer wall 11 are set to be substantially the same Cf standing.
- O-rings 14 and 15 are attached to the inner and outer peripheries of the upper end of the head valve 13 in a sealed state against the inner cylindrical outer wall 11, and the lower outer periphery is sealed to the inner periphery of the cylindrical outer wall 11.
- An abutting O-ring 16 is installed.
- An annular protrusion 17 is formed on the outer periphery in the vicinity of the upper end of the impact cylinder 6, and an elastic body 18 is provided around the upper end and the annular protrusion 17.
- the step portion is configured to receive the lower end of the head valve 13.
- the head valve 13 is always attached to the panel 20 so as to move downward (in the closing direction). It is energized.
- the head valve upper chamber 19 and the trigger valve 22 are connected via a pipe line (not shown), and the trigger valve 22 is controlled by a trigger 23.
- exhaust ports 24 and 25 are formed through the lower portion of the cylindrical outer wall 11 of the cylinder cap 8 and the head valve 13.
- An exhaust cover 26 is disposed outside the exhaust port 24 of the cylinder cap 8.
- a recess 27 is formed in the lower part of the exhaust port 24 on the outside of the cylindrical outer wall 11 of the cylinder cap 8.
- a filter 28 is housed and fixed in a space between the recess 27 and the exhaust cover 26.
- An exhaust port 29 is formed in the lower part of the exhaust cover 26, and the upper part is fixed to the step part 30 formed on the upper edge of the cylinder cap 8 with two bolts 32 as shown in FIG.
- the exhaust port 25 of the cylinder cap 8 and the upper portion of the impact cylinder 6 communicate with each other via the exhaust port 24 of the head valve 13, and further the exhaust Since an exhaust passage 34 is formed in the lower portion of the cover 26 and communicates with the exhaust port 29, the compressed air in the striking cylinder 6 passes through the exhaust passage 34 and further passes through the filter 28 below to exhaust from the exhaust port 29. Is done. At the same time, the striking piston 5 moves back upward again.
- the cylindrical inner wall 10 and the cylindrical outer wall 11 that house the head valve 13 and guide the vertical movement can be formed in a cylindrical shape having the same diameter. So It becomes easy to form the cylindrical inner wall 10 and the cylindrical outer wall 11 integrally with the cylinder cap 8. Accordingly, parts such as the conventional head valve guide are not required, so that the number of parts can be reduced to achieve a low overall height and the cost can be reduced.
- the filter 28 is provided with the recess 27 on the side wall (cylindrical outer wall 11) of the cylinder cap 8 and the exhaust cover. Since it can be placed between and fixed to 26, only the exhaust cover 26 can be fixed to the cylinder cap 8 with two bolts 32. In the past, the force required to hold the filter on the back of the exhaust cover also required four bolts. Therefore, the number of bolts can be reduced.
- the low overall height structure is not limited to nailing machines.
- the present invention can also be applied to a driving tool such as a screwdriver using compressed air as a driving source.
- the present invention can be used for a low overall height structure of a driving tool capable of reducing the overall height.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002615512A CA2615512A1 (en) | 2005-07-20 | 2006-07-20 | Driving tool |
EP06781299A EP1918074B1 (en) | 2005-07-20 | 2006-07-20 | Driving tool |
AU2006270806A AU2006270806A1 (en) | 2005-07-20 | 2006-07-20 | Driving tool |
US11/996,104 US7703651B2 (en) | 2005-07-20 | 2006-07-20 | Driving tool |
NO20080345A NO20080345L (no) | 2005-07-20 | 2008-01-16 | Driv-verktoy |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005210495A JP4923461B2 (ja) | 2005-07-20 | 2005-07-20 | 打込み工具の低全高構造 |
JP2005-210495 | 2005-07-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007010959A1 true WO2007010959A1 (ja) | 2007-01-25 |
Family
ID=37668831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/314339 WO2007010959A1 (ja) | 2005-07-20 | 2006-07-20 | 打ち込み工具 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7703651B2 (ja) |
EP (1) | EP1918074B1 (ja) |
JP (1) | JP4923461B2 (ja) |
AU (1) | AU2006270806A1 (ja) |
CA (1) | CA2615512A1 (ja) |
NO (1) | NO20080345L (ja) |
TW (1) | TWI419773B (ja) |
WO (1) | WO2007010959A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100327040A1 (en) * | 2009-06-29 | 2010-12-30 | Max Co., Ltd. | Driving tool and bumper of driving tool |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5071287B2 (ja) * | 2008-07-18 | 2012-11-14 | マックス株式会社 | 空気圧工具 |
TWI551405B (zh) * | 2011-12-28 | 2016-10-01 | Makita Corp | Pneumatic tools |
US9662777B2 (en) | 2013-08-22 | 2017-05-30 | Techtronic Power Tools Technology Limited | Pneumatic fastener driver |
US10040183B2 (en) * | 2013-10-11 | 2018-08-07 | Illinois Tool Works Inc. | Powered nailer with positive piston return |
EP2875903A1 (de) * | 2013-11-26 | 2015-05-27 | HILTI Aktiengesellschaft | Pyrotechnisches Eintreibgerät |
JP6578816B2 (ja) * | 2015-08-24 | 2019-09-25 | マックス株式会社 | 打込み工具 |
JP6540372B2 (ja) * | 2015-08-24 | 2019-07-10 | マックス株式会社 | 打込み工具 |
US10875165B2 (en) | 2017-08-02 | 2020-12-29 | Illinois Tool Works Inc. | Fastener-driving tool with one or more combustion chambers and an exhaust gas recirculation system |
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JPS54164067A (en) * | 1978-06-16 | 1979-12-27 | Max Co Ltd | Head valve mechanism for air pressure drive impacting tool |
JPS588457Y2 (ja) * | 1978-10-07 | 1983-02-15 | マックス株式会社 | 空気圧式打撃工具の消音装置 |
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JPH0516158U (ja) * | 1991-08-08 | 1993-03-02 | マツクス株式会社 | 釘打機のヘツドバルブ |
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US20040011846A1 (en) | 2002-07-19 | 2004-01-22 | Hitachi Koki Co., Ltd. | Pneumatically operated nail gun having cylinder floating prevention arrangement |
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-
2005
- 2005-07-20 JP JP2005210495A patent/JP4923461B2/ja active Active
-
2006
- 2006-07-17 TW TW095126041A patent/TWI419773B/zh active
- 2006-07-20 AU AU2006270806A patent/AU2006270806A1/en not_active Abandoned
- 2006-07-20 WO PCT/JP2006/314339 patent/WO2007010959A1/ja active Application Filing
- 2006-07-20 EP EP06781299A patent/EP1918074B1/en active Active
- 2006-07-20 US US11/996,104 patent/US7703651B2/en active Active
- 2006-07-20 CA CA002615512A patent/CA2615512A1/en not_active Abandoned
-
2008
- 2008-01-16 NO NO20080345A patent/NO20080345L/no not_active Application Discontinuation
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54164067A (en) * | 1978-06-16 | 1979-12-27 | Max Co Ltd | Head valve mechanism for air pressure drive impacting tool |
JPS588457Y2 (ja) * | 1978-10-07 | 1983-02-15 | マックス株式会社 | 空気圧式打撃工具の消音装置 |
JPH052877U (ja) * | 1991-03-01 | 1993-01-19 | マツクス株式会社 | 空気駆動釘打機のヘツドバルブ |
JPH0516158U (ja) * | 1991-08-08 | 1993-03-02 | マツクス株式会社 | 釘打機のヘツドバルブ |
US5217153A (en) | 1992-10-21 | 1993-06-08 | Hitachi Koki Co., Ltd. | Driving machine having cylinder fixing arrangement |
DE20108469U1 (de) | 2000-05-20 | 2001-09-13 | Karl M Reich Verbindungstechni | Vorrichtung zum Eintreiben eines Befestigungsmittels durch Druckluft, insbesondere druckluftbetreibbarer Nagler |
US20040011846A1 (en) | 2002-07-19 | 2004-01-22 | Hitachi Koki Co., Ltd. | Pneumatically operated nail gun having cylinder floating prevention arrangement |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100327040A1 (en) * | 2009-06-29 | 2010-12-30 | Max Co., Ltd. | Driving tool and bumper of driving tool |
US8544561B2 (en) * | 2009-06-29 | 2013-10-01 | Max Co., Ltd. | Driving tool and bumper of driving tool |
Also Published As
Publication number | Publication date |
---|---|
EP1918074B1 (en) | 2011-05-11 |
TWI419773B (zh) | 2013-12-21 |
TW200720034A (en) | 2007-06-01 |
EP1918074A4 (en) | 2009-06-17 |
NO20080345L (no) | 2008-01-31 |
AU2006270806A1 (en) | 2007-01-25 |
EP1918074A1 (en) | 2008-05-07 |
JP4923461B2 (ja) | 2012-04-25 |
JP2007021693A (ja) | 2007-02-01 |
CA2615512A1 (en) | 2007-01-25 |
US20090230166A1 (en) | 2009-09-17 |
US7703651B2 (en) | 2010-04-27 |
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