WO2011001988A1 - Machine à clouer - Google Patents

Machine à clouer Download PDF

Info

Publication number
WO2011001988A1
WO2011001988A1 PCT/JP2010/061076 JP2010061076W WO2011001988A1 WO 2011001988 A1 WO2011001988 A1 WO 2011001988A1 JP 2010061076 W JP2010061076 W JP 2010061076W WO 2011001988 A1 WO2011001988 A1 WO 2011001988A1
Authority
WO
WIPO (PCT)
Prior art keywords
driver
piston
pin
holder
mounting hole
Prior art date
Application number
PCT/JP2010/061076
Other languages
English (en)
Japanese (ja)
Inventor
泰宣 粟飯原
康介 森脇
Original Assignee
マックス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by マックス株式会社 filed Critical マックス株式会社
Publication of WO2011001988A1 publication Critical patent/WO2011001988A1/fr

Links

Images

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
    • B25C1/047—Mechanical details

Definitions

  • the present invention relates to a mounting structure of a piston driven in driving and a driver for driving a nail integrally coupled to the piston in a nailing machine.
  • a nailing machine for driving a finish nail (finishing nail) or staple is provided with a plate-like driver in accordance with the shape of an injection port to be guided when driving these nails.
  • a coupling with the piston a structure in which a male screw is formed in the driver and a female screw is formed in the piston and these are screw-coupled is common.
  • This joint structure is highly reliable in terms of strength.
  • it is necessary to manufacture a plate-shaped driver by cutting a round bar having a male screw diameter into a plate shape.
  • processing time, material cost, and processing cost will be required.
  • Patent Document 1 forms a fitting groove in the piston, fits the upper end of a plate-like driver as a whole into this fitting groove, and allows the pin to pass through a pin hole provided in the piston and the driver, A structure is disclosed in which a piston and a driver are joined by a pin.
  • One or more embodiments of the present invention provide a nailing machine that can reduce the driver pin hole stress caused by inertial force, improve the coupling strength between the driver and the piston, and reduce the cost. provide.
  • the nailing machine includes a piston 6 slidably disposed in the cylinder 4 and a plate-like driver 5 coupled to a driver holder 6 b provided on the piston 6.
  • the fitting groove 18, the pin hole 19 formed so as to cross the driver holder 6b, the pin hole 19 and the pin mounting hole 22 are continuously inserted, and the driver 5 is inserted into the driver holder 6b.
  • a fixing pin 21 is inserted into the driver holder 6b.
  • the piston when the piston is driven at the time of driving the nail, the piston collides with the bumper at the bottom of the cylinder, whereas the driver is subjected to inertial force.
  • the pin mounting hole is reinforced by the protruding edge. Therefore, the stress of the pin mounting hole is reduced, and the coupling strength between the driver and the piston can be improved.
  • the nailing machine having the above-described structure is further provided between the fitting groove 18 of the driver holder 6b and the driver 5, and the inner surface of the fitting groove 18 and the surface of the driver on the projecting edge 23 side.
  • an adjustment portion is provided between the fitting groove of the driver holder and the driver to fill a gap between the inner surface of the fitting groove and the surface on the protruding edge side of the driver. Therefore, a sufficient contact surface between the piston 6 and the driver 5 is ensured, and the mounting state of the driver 5 can be stabilized.
  • the adjusting portions 24 and 28 may be fitted to the protruding edge portion 23. According to this structure, since the adjusting portion is fitted to the protruding edge portion, the protruding edge portion is reinforced by the adjusting portion, and the coupling strength between the driver and the piston can be further improved. Therefore, the stress applied to the pin mounting hole is further reduced by the protruding edge portion reinforced by the adjusting portion.
  • the piston 6 may be composed of a large-diameter piston main body 6a and a small-diameter driver holder 6b provided below the main body 6a.
  • the piston 6 may be composed of an annular piston main body 6a and a columnar driver holder 6b screwed into the piston main body 6a.
  • the protruding portion 23 may be formed to protrude from one side surface of the driver 5. Alternatively, the protruding portion 23 may be formed to protrude from both side surfaces of the driver 5. According to this structure, the coupling strength between the piston and the driver can be selected according to the use of the nailing machine.
  • FIG. 1 is a longitudinal side view of a pneumatic nailer according to an exemplary embodiment of the present invention.
  • Fig.2 (a) is a front view of the piston which couple
  • FIG. 2B is a cross-sectional view taken along line AA in FIG.
  • FIG. 3A is a front view of the upper portion of the driver.
  • FIG. 3B is a cross-sectional view taken along the line YY in FIG.
  • FIG. 4A and FIG. 4B are cross-sectional views showing other coupling modes of the driver and the piston, respectively.
  • FIG. 5 is a cross-sectional view showing another embodiment of the protruding portion.
  • Fig.6 (a) is a front view which shows other embodiment of an adjustment part.
  • FIG.6 (a) is a front view which shows other embodiment of an adjustment part.
  • FIG. 6B is a cross-sectional view taken along the line CC in FIG. Fig.7 (a) is a front view which shows other embodiment of an adjustment part.
  • FIG. 7B is a cross-sectional view taken along the line DD in FIG.
  • FIG. 8A and FIG. 8B are longitudinal sectional views showing other forms of the piston, respectively.
  • FIG. 1 is a longitudinal sectional view of a pneumatic nailer according to an exemplary embodiment of the present invention.
  • the nailing machine of the present invention is used to drive finish nails, staples and the like.
  • Reference numeral 1 denotes a body
  • 2 denotes a grip
  • 3 denotes a magazine.
  • Inside the body 1 are a cylinder 4, a piston 6 slidably accommodated in the cylinder 4 and a driver 5 integrally coupled, and an air chamber 7 (connected to a compressed air supply source) in the cylinder 4.
  • a head valve 8 for driving and controlling the piston 6 by supplying and discharging the compressed air and a trigger valve 9 for controlling the operation of the head valve 8 are arranged.
  • a nose portion 10 is provided at the tip of the body 1, and the driver 5 is guided so as to slide on the nose portion 10.
  • the nose portion 10 is configured such that the tip of the magazine 3 is opened, and nails (not shown) in the magazine 3 are supplied to the nose portion 10.
  • the trigger valve 9 is disposed at the base of the grip 2, and the tip of the valve stem 11 of the trigger valve 9 is disposed opposite to the trigger lever 12.
  • the trigger valve 9 is connected to the air chamber 7 when not operating.
  • the compressed air taken in from the air chamber 7 is supplied to the head valve 8 via an air passage (not shown).
  • the head valve 8 closes the upper end of the cylinder 4 as shown in FIG.
  • the trigger valve 9 again connects the head valve 8 to the air chamber 7 as shown in FIG.
  • the cylinder 4 is closed with respect to the air chamber 7, and at the same time, the cylinder 4 is connected to the atmosphere and exhausted.
  • the piston 6 returns to the initial position, and the next nail driving operation is prepared.
  • the mechanism for controlling the driving of the nail driver by operating the trigger valve 9 and the head valve 8 is the same as that known in the art.
  • the piston 6 is integrally formed from a large-diameter piston body 6a and a small-diameter driver holder 6b below the large-diameter piston body 6a.
  • the piston body 6a is formed in a columnar shape, and an annular groove 17 into which the O-ring 16 is fitted is provided on the outer peripheral surface thereof.
  • the driver holder 6b is formed in a columnar shape, and a slit-like fitting groove 18 that opens downward is formed at the center thereof.
  • a pin hole 19 is formed in the driver holder 6b so as to cross the fitting groove 18 perpendicular to the center line O of the piston 6.
  • the driver 5 is formed in a plate shape, and is fitted and fixed in the fitting groove 18 of the driver holder 6b.
  • a rectangular plate-like fitting portion 20 is formed on the driver 5.
  • the size of the fitting portion 20 is formed substantially the same as the fitting groove 18 of the piston 6.
  • the fitting portion 20 is formed with a pin mounting hole 22 for inserting the fixing pin 21.
  • An annular protruding edge 23 is formed in a rib shape on the peripheral edge of the pin mounting hole 22.
  • the protruding portion 23 may be formed by burring.
  • a metal washer 24 is provided on the surface of the upper portion of the driver 5 on the side of the protruding edge 23 as an adjusting portion that fills a gap between the inner surface of the fitting groove 18 and the surface of the driver 5 on the protruding edge 23 side. It is provided by polymerization.
  • the washer 24 is formed to have substantially the same size as the fitting portion 20 of the driver 5, and a fitting hole 25 to be fitted to the protruding edge portion 23 is formed.
  • the washer 24 is formed so that the thickness of the washer 24 is larger than the height of the protruding portion 23.
  • the driver 5 and the washer 24 are superposed (it is not necessary to superpose) and are fitted into the fitting groove 18 of the driver holder 6b of the piston 6.
  • the fixing pin 21 is inserted from one side of the pin hole 19 and penetrated from the pin mounting hole 22 of the driver 5 to the other side of the pin hole 19, Further, the fixing pin 21 may be prevented from coming out by crimping the end portion or by pressing the fixing pin 21 and the pin hole 19 together.
  • the driver holder 6b and the driver 5 are coupled as shown in FIGS. 2 (a) and 2 (b).
  • the piston 6 collides with the bumper 26 at the bottom of the cylinder, whereas an inertial force acts on the driver 5. Stress concentrates at the joint between the fixing pin 21 and the driver 5.
  • the coupling portion is the pin mounting hole 22 of the driver 5 and the protruding edge portion 23 at the peripheral portion thereof, but the bonding strength between the driver and the piston can be improved by the protruding edge portion 23. Since the washer 24 and the projecting edge portion 23 are in the fitted state, the washer 24 and the driver 5 are integrated, and the inner surface of the fitting groove 18 and the surface of the driver 5 on the projecting edge portion 23 side. Since the gap between them is filled, the mounting state of the driver 5 is stabilized.
  • the stress concentration occurs at the edge (peripheral edge) of the pin mounting hole 22, and in order to prevent minute deformation from occurring at the hole edge due to inertial force, the peripheral edge of the pin mounting hole 22 of the driver 5. It is effective to give rigidity by forming the projecting edge portion 23 on the surface. Further, since the driver 5 is fitted into the fitting groove 18 of the piston 6 by fitting the washer 24 with the projecting edge portion 23, the contact surface between the piston 6 and the driver 5 is sufficiently secured, and the mounting state of the driver 5 is secured. Since the thickness of the protrusion 23 is larger than the height of the protrusion 23, the protrusion 23 does not contact the inner surface of the fitting groove 18. Sufficient rigidity can be given to the peripheral edge portion near the pin mounting hole 22.
  • the washer 24 is formed with a fitting hole 25 for fitting with the protruding edge 23 of the driver 5, so that the positioning is ensured by fitting and the play when assembled to the piston 6 is suppressed. Can do.
  • the thickness thereof may be substantially the same as the height of the projecting edge 23 as shown in FIG. 4 (a).
  • the washer 24 and the projecting edge portion 23 may be formed separately, and the projecting edge portion 23 and the fitting hole 25 may be fitted together and fitted into the fitting groove 18.
  • the washer 24 may be inserted into the mold and processed. In the latter case, a projecting edge portion 23 is formed along the inner surface of the fitting hole 25 of the washer 24, and the washer 24 and the driver 5 are strongly pressed and are integrally coupled.
  • the protruding edge portion 23 is not limited to a form in which the protruding portion 23 is formed to protrude on one side of the fitting portion 20 of the driver 5. As shown in FIG. 4B, it may be formed on both sides of the fitting portion 20 by forging. In this case, the washer 24 is also disposed on both sides of the fitting portion 20. In this manner, the protruding portion 23 may be formed so as to protrude on one side surface or both side surfaces of the driver 5 according to the use of the nail driver.
  • the pin mounting hole of the driver is not limited to a perfect circle, but may be an ellipse, a long hole, or a polygonal shape.
  • piston body 6a and the driver holder 6b are not necessarily integral. A structure in which separate members are combined may be used.
  • the projecting edge portion 23 may not be annular. You may form only in the upper part of the pin attachment hole which the stress at the time of driving generate
  • the driver holder 6b is not limited to a cylindrical shape, and may be an elliptical shape, a polygonal shape, or the like.
  • the driver holder is provided with a washer 24 as an adjustment portion for attaching the inner surface of the fitting groove 18 of the piston 6 and the driver 5 around the projecting edge portion 23 of the driver 5 while maintaining a space between the driver holder 5 and the driver 5.
  • the adjustment unit may be formed of a separate member from the driver holder 6b.
  • the driver holder 6b includes a driver 5
  • the intermediate member 28 may be fixed so as to be provided around the protruding edge 23.
  • the configuration of the driver holder is not limited to the above-described form.
  • a driver holder 6b having the same diameter is integrally formed at the lower portion of the piston body 6a, and a fitting groove 18 is formed in the driver holder 6b.
  • a pin mounting hole 22 is formed, and a rib-shaped protruding edge portion 23 is formed on the peripheral edge portion of the pin mounting hole 22, and is fitted to the protruding edge portion 23 side of the driver 5.
  • a washer 24 having a mating hole 25 is provided, and the driver 5 and the washer 24 are fitted into the fitting groove 18 of the piston 6, and the pin hole 19 formed so as to cross the piston 6 is attached to the pin of the driver 5. It is good also as a structure couple
  • FIG. 8B is a longitudinal sectional view of still another form of the driver holder, in which the driver holder is formed inside the piston 6, and the piston 6 is screwed into the annular piston body 6a and the inside thereof.
  • the driver holder 6b is formed, and a fitting groove 18 is formed at the center lower portion of the driver holder 6b, and the driver 5 and the washer 24 are fitted into the fitting groove 18 of the piston 6 so as to cross the driver holder 6b.
  • the pin hole 19 formed in this way and the pin mounting hole 22 of the driver 5 are connected by a fixing pin 21 inserted continuously.
  • the fixing pin 21 does not come off by hitting the inner peripheral surface of the piston body 6a, so that it is not necessary to prevent the caulking or the like from coming off.
  • the present invention can be used for a connecting structure between a driver and a piston in a nailing machine.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

L'invention concerne une machine à clouer, comprenant : un piston (6) monté coulissant dans un cylindre (4) ; un élément d'enfoncement de type plaquette (5) associé à un porte-élément d'enfoncement (6b) situé sur le piston (6) ; un trou d'insertion (22) de goupille ménagé à travers la partie supérieure de l'élément d'enfoncement (5) ; une partie saillante (23) formée en saillie dans une partie périphérique du trou d'insertion (22) de goupille ; une rainure d'ajustage (18) ménagée de manière à former une ouverture dans le porte-élément d'enfoncement (6b) et dans laquelle s'ajuste l'élément d'enfoncement (5) ; un trou (19) de goupille ménagé à travers le porte-élément d'enfoncement (6b) ; et une goupille de fixation (21) insérée dans le trou (19) de goupille et le trou d'insertion (22) de goupille pour joindre ceux-ci, et associant l'élément d'enfoncement (5) au porte-élément d'enfoncement (6b).
PCT/JP2010/061076 2009-06-29 2010-06-29 Machine à clouer WO2011001988A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-154397 2009-06-29
JP2009154397A JP2011005619A (ja) 2009-06-29 2009-06-29 釘打機

Publications (1)

Publication Number Publication Date
WO2011001988A1 true WO2011001988A1 (fr) 2011-01-06

Family

ID=43411060

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2010/061076 WO2011001988A1 (fr) 2009-06-29 2010-06-29 Machine à clouer

Country Status (3)

Country Link
JP (1) JP2011005619A (fr)
TW (1) TW201109132A (fr)
WO (1) WO2011001988A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013018707A1 (fr) 2011-08-03 2013-02-07 国立大学法人京都大学 Composition contenant un tannin condensé qui est durcie par application de chaleur et de pression
JP2014069289A (ja) * 2012-09-28 2014-04-21 Hitachi Koki Co Ltd 打込機
EP3000560A1 (fr) * 2014-09-25 2016-03-30 HILTI Aktiengesellschaft Appareil d'enfoncement à ressort à gaz

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4812915B1 (fr) * 1969-08-18 1973-04-24
DE3309226A1 (de) * 1983-03-15 1984-09-20 Hilti Ag, Schaan Druckluftnagler
JPS6062471A (ja) * 1983-08-11 1985-04-10 センコ　プロダクツ，インコ−ポレ−テツド フアスナ打込み装置用ピストンおよびフアスナドライバ
JP2005007565A (ja) * 2003-05-26 2005-01-13 Hitachi Koki Co Ltd 打込機
US20080006671A1 (en) * 2006-07-06 2008-01-10 Testo Industry Corp. Piston assembly
JP2008000871A (ja) * 2006-06-26 2008-01-10 Hitachi Koki Co Ltd 打込機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4812915B1 (fr) * 1969-08-18 1973-04-24
DE3309226A1 (de) * 1983-03-15 1984-09-20 Hilti Ag, Schaan Druckluftnagler
JPS6062471A (ja) * 1983-08-11 1985-04-10 センコ　プロダクツ，インコ−ポレ−テツド フアスナ打込み装置用ピストンおよびフアスナドライバ
JP2005007565A (ja) * 2003-05-26 2005-01-13 Hitachi Koki Co Ltd 打込機
JP2008000871A (ja) * 2006-06-26 2008-01-10 Hitachi Koki Co Ltd 打込機
US20080006671A1 (en) * 2006-07-06 2008-01-10 Testo Industry Corp. Piston assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013018707A1 (fr) 2011-08-03 2013-02-07 国立大学法人京都大学 Composition contenant un tannin condensé qui est durcie par application de chaleur et de pression
JP2014069289A (ja) * 2012-09-28 2014-04-21 Hitachi Koki Co Ltd 打込機
EP3000560A1 (fr) * 2014-09-25 2016-03-30 HILTI Aktiengesellschaft Appareil d'enfoncement à ressort à gaz
WO2016046188A1 (fr) * 2014-09-25 2016-03-31 Hilti Aktiengesellschaft Appareil d'enfoncement muni d'un ressort à gaz

Also Published As

Publication number Publication date
TW201109132A (en) 2011-03-16
JP2011005619A (ja) 2011-01-13

Similar Documents

Publication Publication Date Title
TWI308100B (en) Fastener driving tool and magazine device
TWI399270B (zh) 扣件驅動工具
TWI549788B (zh) 打擊工具及打擊工具用緩衝器
JP2017131994A (ja) 打込機
WO2011001988A1 (fr) Machine à clouer
JP2002337066A (ja) 釘打機における釘打ち出し案内機構
JP4923440B2 (ja) 打込み工具のコンタクトアーム機構
JP4761257B2 (ja) 留め具打込機
US20100243286A1 (en) Power tool and cushioning mechanism thereof
JP5125843B2 (ja) 空気圧工具
JP4525585B2 (ja) フロア施工用釘打機の除釘機構
US20060016844A1 (en) Fastener driving tool
JP5018146B2 (ja) 打込み工具
JPH09109056A (ja) 空気圧式釘打機におけるピストンとドライバとの取付構造
JP5730752B2 (ja) エア打込み工具
JP2017119330A (ja) 打込機
JP6840963B2 (ja) 打込機
JP4569045B2 (ja) 釘打機の排気構造
JP3099285B2 (ja) 空気圧式釘打機における排気機構
JP7073197B2 (ja) 打ち込み工具
US7070081B2 (en) Driver guides for use with fastener-driving tools and fastener-driving tools having such driver guides
JP4569521B2 (ja) 打込機
JPS5938999Y2 (ja) 打撃工具における打撃用ドライバの保持装置
JPH08267374A (ja) 釘打機の打撃ピストンとドライバとの結合構造
JPS5828769Y2 (ja) 空気圧駆動型打撃工具の打撃ピストンユニツト

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10794157

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 10794157

Country of ref document: EP

Kind code of ref document: A1