JP2009269098A - Impact imparting device - Google Patents

Impact imparting device Download PDF

Info

Publication number
JP2009269098A
JP2009269098A JP2008119088A JP2008119088A JP2009269098A JP 2009269098 A JP2009269098 A JP 2009269098A JP 2008119088 A JP2008119088 A JP 2008119088A JP 2008119088 A JP2008119088 A JP 2008119088A JP 2009269098 A JP2009269098 A JP 2009269098A
Authority
JP
Japan
Prior art keywords
compressed air
cylinder
piston
peripheral surface
valve member
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP2008119088A
Other languages
Japanese (ja)
Other versions
JP5006831B2 (en
Inventor
Keiichi Murakami
慶一 村上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitto Kohki Co Ltd
Original Assignee
Nitto Kohki Co Ltd
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 Nitto Kohki Co Ltd filed Critical Nitto Kohki Co Ltd
Priority to JP2008119088A priority Critical patent/JP5006831B2/en
Priority to PCT/JP2009/058499 priority patent/WO2009133933A1/en
Priority to TW98114436A priority patent/TW201000272A/en
Publication of JP2009269098A publication Critical patent/JP2009269098A/en
Application granted granted Critical
Publication of JP5006831B2 publication Critical patent/JP5006831B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/04—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing keys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/026—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same fluid driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C11/00—Nail, spike, and staple extractors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an impact imparting device capable of preventing a base and the other tools from being damaged by stopping the operation of the device without performing a special operation such as the release of hand from the device. <P>SOLUTION: This impact imparting device includes a cylinder 1 having a cylindrical wall and a compressed air inlet 32; a piston 2 reciprocable in the cylinder 1 in the longitudinal direction; an impact imparting member 3 which has an engagement end section 22 which is installed in the cylinder 1 displaceably in the longitudinal direction and which extends from one end 1a of the cylinder 1 and is engaged with an article to be processed and which is hit by the piston 2 to impart the article to be processed; a valve member 7 which is installed on the outside of the cylinder 1 slidably in the longitudinal direction, which has a compressed air introduction hole 31, and which is axially displaceable between an operation position for introducing compressed air into the cylinder 1 and a non-operation position for stopping the introduction of the compressed air into the cylinder 1; and a biasing means 9 for biasing the valve member 7 to the non-operation position. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、各種基材に埋め込まれた釘、ノックピン又は合い釘などを引き抜くための衝撃付与装置に関する。   The present invention relates to an impact applying device for pulling out a nail, a knock pin, a dowel or the like embedded in various base materials.

プレス用の金型等の各種基材に埋め込まれるノックピン等の被処理物を引き抜くための衝撃付与装置は種々提案されている。   Various types of impact applying devices for pulling out objects to be processed such as knock pins embedded in various base materials such as press molds have been proposed.

例えば、特許文献１や特許文献２には、円筒形状のハウジングと、一端にノックピン等の被処理物に係合される係合部を有し、他端側にハウジング内の加圧室内で摺動可能とされたヘッドを有する衝撃付与用のロッドとを有し、操作レバーを手で握ることにより該加圧室に圧搾空気を導入して該ロッドを往復動させ、被処理物に引き抜き方向の衝撃を付与する衝撃付与装置が提案されている。   For example, Patent Literature 1 and Patent Literature 2 have a cylindrical housing and an engaging portion that engages with an object to be processed such as a knock pin at one end, and slides in the pressurizing chamber in the housing at the other end. An impact applying rod having a movable head, and by holding the operating lever with a hand, compressed air is introduced into the pressurizing chamber to reciprocate the rod, so that the object is pulled out There has been proposed an impact imparting device that imparts an impact.

この装置では、操作レバーから手を放すことにより加圧室への圧搾空気の導入を遮断するようになっているが、ノックピン等の被処理物が抜けた直後に操作レバーから手を離すことは難しく、手を離すまでの間に、当該衝撃付与装置が激しく振動し、周辺部の部品（プレス金型の刃先等）に損傷を与えてしまうことがある。
特公昭５９−３５７４８号公報 特開平５−２８５８５７号公報 In this device, the introduction of the compressed air into the pressurizing chamber is blocked by releasing the operation lever, but it is not possible to release the hand from the operation lever immediately after the object to be processed such as a knock pin comes off. It is difficult, and until the hand is released, the impact applying device vibrates violently and may damage peripheral parts (such as a cutting edge of a press die).
Japanese Patent Publication No.59-35748 JP-A-5-285857

本発明は、被処理物が抜けた直後に自動的に作動を停止することができるようにした衝撃付与装置を提供することを目的とする。   An object of the present invention is to provide an impact applying device capable of automatically stopping operation immediately after an object to be processed is removed.

本発明の衝撃付与装置は、
被処理物に衝撃を与える衝撃付与装置であって、
筒状の壁及び該壁を貫通して設けられた圧搾空気入口（以下に述べる実施形態においては、参照符号３２で示す。以下同様。）を有するシリンダ（１）と、
該シリンダ（１）内に設けられ、該シリンダ（１）内に導入される圧搾空気によって、当該シリンダ（１）の長手軸線方向で往復動可能とされたピストン（２）と、
該シリンダ（１）内に該長手軸線方向で変位可能に取り付けられ、該シリンダ（１）の一端（１ａ）から外側に延びて被処理物（４０）に係合される係合端部（２２）を有し、往動する該ピストン（２）によって打撃されることにより被処理物に衝撃を与える衝撃付与部材（３）と、
該シリンダ（１）の外側に該長手軸線方向で摺動可能に取り付けられた弁部材（７）であって、圧搾空気導入孔（３１）を有し、該圧搾空気導入孔（３１）が該圧搾空気入口（３２）に整合し、圧搾空気をシリンダ（１）内に導入する作動位置と、該圧搾空気導入孔（３１）が該圧搾空気入口（３２）から外れて、圧搾空気のシリンダ（１）内への導入を阻止する非作動位置との間を該軸線方向で変位可能とされた弁部材（７）と、
該シリンダ（１）と該弁部材（７）との間に設定されて、該弁部材を非作動位置に付勢する付勢手段（９）と
を有することを特徴とする。 The impact applying device of the present invention comprises:
An impact applying device that applies an impact to a workpiece,
A cylinder (1) having a cylindrical wall and a compressed air inlet provided through the wall (in the embodiment described below, indicated by reference numeral 32; the same shall apply hereinafter);
A piston (2) provided in the cylinder (1) and reciprocally movable in the longitudinal axis direction of the cylinder (1) by compressed air introduced into the cylinder (1);
An engagement end (22) is mounted in the cylinder (1) so as to be displaceable in the longitudinal axis direction, and extends outward from one end (1a) of the cylinder (1) and engages with the workpiece (40). And an impact imparting member (3) that impacts the workpiece by being struck by the forwardly moving piston (2),
A valve member (7) attached to the outside of the cylinder (1) so as to be slidable in the longitudinal axis direction, having a compressed air introduction hole (31), and the compressed air introduction hole (31) Aligned with the compressed air inlet (32), the operating position for introducing the compressed air into the cylinder (1), and the compressed air introduction hole (31) are disengaged from the compressed air inlet (32). 1) a valve member (7) that is displaceable in the axial direction between a non-operating position that prevents introduction into the valve;
And an urging means (9) which is set between the cylinder (1) and the valve member (7) and urges the valve member to a non-operating position.

この衝撃付与装置では、被処理物が、例えば、金型などに圧入されていた内側にネジが切られたノックピンだとした場合には、衝撃付与部材を該ノックピンに係合させた状態で、作業者が弁部材を付勢手段（９）の付勢力に抗して弁部材（７）を作動位置にして、圧搾空気をシリンダの加圧室内に供給して、ピストンを往復動させ、これにより衝撃付与部材に繰り返しの打撃を与えてノックピンに衝撃を繰り返し与える。繰り返しの衝撃の結果、該ノックピンが金型から抜けた状態では、それまでノックピンを介して金型に接続されていた状態の衝撃付与部装置が、金型から自由な状態になるので、弁部材（７）とシリンダ（１）との間に設定された付勢手段（９）によって、該弁部材が自動的に非作動位置とされ、加圧室への圧搾空気の供給が停止される。このため前述した従来の装置において生じていた、金型や他の工具への損傷を防止することが可能となる。   In this impact applying device, if the object to be processed is, for example, a knock pin that is screwed into a mold or the like, the impact applying member is engaged with the knock pin. The operator places the valve member (7) in the operating position against the biasing force of the biasing means (9), supplies the compressed air to the pressurized chamber of the cylinder, and reciprocates the piston. Thus, the impact applying member is repeatedly hit and the impact is repeatedly applied to the knock pin. As a result of repeated impacts, when the knock pin is removed from the mold, the impact applying device that has been connected to the mold through the knock pin until then is free from the mold. By the biasing means (9) set between (7) and the cylinder (1), the valve member is automatically set to the non-operating position, and the supply of compressed air to the pressurizing chamber is stopped. For this reason, it is possible to prevent damage to the mold and other tools that has occurred in the conventional apparatus described above.

具体的には、
該弁部材（７）が該シリンダ（１）の周囲に同心状に取り付けられた筒状の部材とすることができる。 In particular,
The valve member (7) may be a cylindrical member attached concentrically around the cylinder (1).

これにより、持ちやすくハンドリング性に優れたものとすることができる。   Thereby, it can be easily held and excellent in handling properties.

該付勢手段（９）が、該シリンダ（１）と該弁部材（７）との間に設けられたバネとすることができる。   The biasing means (9) may be a spring provided between the cylinder (1) and the valve member (7).

このような構成を採用することで、小型のバネを用いることにより付勢手段の軽量小型化を図ることが容易となり、装置全体の軽量小型化を図ることができる。   By adopting such a configuration, it becomes easy to reduce the weight and size of the urging means by using a small spring, and the entire device can be reduced in weight and size.

該シリンダ（１）の筒状の壁と弁部材（７）との間に形成された室（３５）を有し、該弁部材（７）が非作動位置にされたときに、圧搾空気導入孔（３１）から導入された圧搾空気が該室（３５）内に導入されて、該弁部材（７）を非作動位置に付勢するようにすることができる。   Having a chamber (35) formed between the cylindrical wall of the cylinder (1) and the valve member (7) and introducing the compressed air when the valve member (7) is brought into the non-operating position; Compressed air introduced from the hole (31) can be introduced into the chamber (35) to bias the valve member (7) to the inoperative position.

これにより、弁部材をより確実に非作動位置に戻すことができる。   Thereby, a valve member can be returned more reliably to a non-operation position.

該シリンダ（１）の筒状の壁の外周面が、該圧搾空気入口（３２）が形成されている大径部（１ｃ）と該大径部（１ｃ）よりも該シリンダ（１）の該一端（１ａ）側に設けられた小径部（１ｄ）と、該大径部（１ｃ）及び該小径部（１ｄ）の間で半径方向に延びる環状部（１ｅ）を有し、
該弁部材（７）が、該シリンダ（１）の大径部（１ｃ）と摺動する内周面（７ｂ）を有し、該内周面（７ｂ）が該環状部（１ｅ）よりも該一端（１ａ）側の位置に該小径部（１ｄ）と摺動する環状突起部（７ａ）を有し、
該室（３５）が、該シリンダ（１）の外周面の該小径部（１ｄ）及び環状部（１ｅ）、該弁部材（７）の内周面（７ｂ）及び環状突起部（７ａ）によって画定されているように構成することができる。 The outer peripheral surface of the cylindrical wall of the cylinder (1) is larger than the large-diameter portion (1c) in which the compressed air inlet (32) is formed and the large-diameter portion (1c). A small-diameter portion (1d) provided on one end (1a) side, and an annular portion (1e) extending radially between the large-diameter portion (1c) and the small-diameter portion (1d),
The valve member (7) has an inner peripheral surface (7b) that slides with the large diameter portion (1c) of the cylinder (1), and the inner peripheral surface (7b) is more than the annular portion (1e). An annular protrusion (7a) that slides with the small diameter portion (1d) at a position on the one end (1a) side;
The chamber (35) is formed by the small diameter portion (1d) and the annular portion (1e) of the outer peripheral surface of the cylinder (1), the inner peripheral surface (7b) and the annular protrusion (7a) of the valve member (7). It can be configured as defined.

該バネが該シリンダ（１）の筒状の壁の周りに設定され、該室（３５）内に収納されているように構成することもできる。   The spring may be set around the cylindrical wall of the cylinder (1) and housed in the chamber (35).

該ピストン（２）が該シリンダ（１）の内周面と摺動される外周面（２ｂ）を有する筒状の部材とされ、
該衝撃付与部材（３）が、該ピストン（２）を該長手軸線方向で貫通するロッド（３ａ）を有し、該ロッド（３ａ）の一端に該係合端部（２２）が設けられ、他端が往動する該ピストン（２）によって打撃される被打撃部（３ｂ）を有するように構成することができる。 The piston (2) is a cylindrical member having an outer peripheral surface (2b) that is slid with an inner peripheral surface of the cylinder (1).
The impact applying member (3) has a rod (3a) penetrating the piston (2) in the longitudinal axis direction, and the engagement end (22) is provided at one end of the rod (3a), It can comprise so that it may have a hit | damage part (3b) hit | damaged by this piston (2) to which an other end moves forward.

該シリンダ１の該一端（１ａ）が閉止端部とされ、該ロッド（３ａ）は該閉止端部を貫通して延び、
該ピストン（２）が半径方向で貫通する圧搾空気取入孔（３３）を有し、該ピストン（２）の内周面が該圧搾空気取入孔（３３）よりも該被打撃部寄りにおいて該ロッド（３ａ）と密封摺動可能とされた密封摺動部（２ｃ）を有し、該密封摺動部（２ｃ）と該シリンダ（１）の閉止端部との間に加圧室（３７）を形成し、該圧搾空気取入孔（３３）からの圧搾空気は該加圧室（３７）に導入されて該ピストン（２）を往動方向に駆動するようにすることができる。 The one end (1a) of the cylinder 1 is a closed end, and the rod (3a) extends through the closed end,
The piston (2) has a compressed air intake hole (33) that penetrates in the radial direction, and the inner peripheral surface of the piston (2) is closer to the hit portion than the compressed air intake hole (33). The rod (3a) has a sealing sliding portion (2c) that can be hermetically slid, and a pressure chamber (between the sealing sliding portion (2c) and the closed end of the cylinder (1) ( 37), and compressed air from the compressed air intake hole (33) can be introduced into the pressurizing chamber (37) to drive the piston (2) in the forward movement direction.

該ピストン（２）が圧搾空気により往動され該ロッド（３ａ）の被打撃部に衝突する間の行程において、該加圧室（３７）が当該衝撃付与装置の外部と連通されるようにされている構成とすることができる。   During the stroke while the piston (2) is moved forward by the compressed air and collides with the hit part of the rod (3a), the pressurizing chamber (37) is communicated with the outside of the impact applying device. It can be set as the structure which has.

該シリンダ（１）の内周面が、圧搾空気により該ロッド（３ａ）の被打撃部に向けて駆動される前の状態において、該圧搾空気取入孔（３３）よりも該被打撃部側において該ピストン（２）の外周面（２ｂ）と摺動可能に密封係合する密封係合凸部（１ｆ）を有し、
該ピストン（２）の外周面（２ｂ）が、圧搾空気により該ロッド（３ａ）の被打撃部（３ｂ）に向けて駆動される前の状態において、該圧搾空気取入孔（３３）よりも該係合端部（２２）寄りの位置で該シリンダ（１）の内周面と摺動可能に密封係合する密封係合凸面（２ｄ）を有し、該密封係合凸面（２ｄ）と該密封係合凸部（１ｆ）との間で、且つ該ピストン（２）の外周面（２ｂ）と該シリンダ（１）の内周面との間において、該圧搾空気入口（３２）と常時連通する環状室（３６）を有し、該環状室（３６）は、該ピストン（２）が圧搾空気により往動され該ロッド（３ａ）の被打撃部（３ｂ）に衝突する間の行程において、該加圧室（３７）が当該衝撃付与装置の外部に連通されたときに、該圧搾空気取入孔（３３）が遮断されて、該圧搾空気入口（３２）から環状室（３６）に導入される圧搾空気によって内部が加圧され、ピストンを復動方向に付勢するような構成とすることができる。 In a state before the inner peripheral surface of the cylinder (1) is driven by the compressed air toward the hit portion of the rod (3a), the hit portion is more than the compressed air intake hole (33). And a sealing engagement convex portion (1f) that slidably and slidably engages with the outer peripheral surface (2b) of the piston (2),
In a state before the outer peripheral surface (2b) of the piston (2) is driven by the compressed air toward the hit portion (3b) of the rod (3a), than the compressed air intake hole (33). A seal engagement convex surface (2d) that slidably and slidably engages with the inner peripheral surface of the cylinder (1) at a position near the engagement end (22); The compressed air inlet (32) is always connected between the sealing engagement convex portion (1f) and between the outer peripheral surface (2b) of the piston (2) and the inner peripheral surface of the cylinder (1). The annular chamber (36) communicates with the annular chamber (36) during the stroke while the piston (2) is moved forward by the compressed air and collides with the hit portion (3b) of the rod (3a). When the pressurizing chamber (37) communicates with the outside of the impact applying device, the compressed air intake hole (33) is blocked. Piezoelectric squeeze inside from the air inlet (32) by compressed air introduced into the annular chamber (36) is pressurized, piston may be configured as to urge the backward direction.

このようにすることにより、ピストンの往動時において、加圧室（３７）内の圧搾空気は装置外部へ排出されて当該加圧室の圧力が低下し、同時に、環状室（３６）が加圧されて、これにより、被打撃部を打撃したピストンは復動方向に駆動されることになる。   In this way, during the forward movement of the piston, the compressed air in the pressurizing chamber (37) is discharged to the outside of the apparatus, the pressure in the pressurizing chamber decreases, and at the same time, the annular chamber (36) is added. As a result, the piston that has hit the hit portion is driven in the backward movement direction.

以下、本発明の実施形態について図面を参照して詳細に説明する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

本実施形態の衝撃付与装置は、図１〜５に示すように、円筒形状のシリンダ１と、シリンダ１内に設けられた、円筒形状のピストン２と、ピストン２内部を貫通するように設けられた衝撃付与部材３と、シリンダ１の外周面を覆って設けられた、円筒形状の弁部材７と、弁部材７を非作動位置に付勢する付勢手段９としてのバネを具備する。衝撃付与部材３は、ロッド３ａと、ロッド３ａの一端（図においては下端）に設けられてノックピンなどの被処理物４０（図３）と係合される係合端部としてのボルト２２と、ロッド３ａの他端（上端）に設けられた被打撃部３ｂを有する   As shown in FIGS. 1 to 5, the impact applying device of the present embodiment is provided so as to penetrate a cylindrical cylinder 1, a cylindrical piston 2 provided in the cylinder 1, and the inside of the piston 2. The impact applying member 3, a cylindrical valve member 7 provided so as to cover the outer peripheral surface of the cylinder 1, and a spring as the urging means 9 for urging the valve member 7 to the inoperative position are provided. The impact applying member 3 includes a rod 3a, a bolt 22 as an engagement end provided at one end (the lower end in the drawing) of the rod 3a and engaged with an object 40 (FIG. 3) such as a knock pin, It has a hit part 3b provided at the other end (upper end) of the rod 3a.

シリンダ１は、筒状の壁を有し、該壁には圧搾空気入口３２と、該圧搾空気入口３２よりも当該シリンダの上端１ｂ側に設けられた圧搾空気出口３４を有する。壁の外周面は、圧搾空気入口３２が形成されている大径部１ｃと、大径部１ｃよりも当該シリンダの下端１ａ側に設けられた小径部１ｄと、大径部１ｃ及び小径部１ｄの間で半径方向に延びる環状部１ｅを有する。また、シリンダ１の内周面には、圧搾空気入口３２よりも当該シリンダの上端側にピストン２の外周面２ｂと摺動可能に密封係合する密封係合凸部１ｆを有する。   The cylinder 1 has a cylindrical wall, and has a compressed air inlet 32 and a compressed air outlet 34 provided on the upper end 1b side of the cylinder with respect to the compressed air inlet 32. The outer peripheral surface of the wall includes a large-diameter portion 1c in which a compressed air inlet 32 is formed, a small-diameter portion 1d provided closer to the lower end 1a of the cylinder than the large-diameter portion 1c, a large-diameter portion 1c, and a small-diameter portion 1d. And an annular portion 1e extending in the radial direction. Further, the inner peripheral surface of the cylinder 1 has a sealing engagement convex portion 1 f that is slidably engaged with the outer peripheral surface 2 b of the piston 2 on the upper end side of the cylinder from the compressed air inlet 32.

シリンダ１の下端１ａにはエンドキャップ１０が設けられて、閉止端部を形成している。エンドキャップ１０は、その外周面に、小径部１０ａと該小径部１０ａよりも下端側に設けられた大径部１０ｂとを有し、小径部１０ａはシリンダ１の内周面にネジ係合され、大径部１０ｂはシリンダ１よりも大きな外径を有し、弁部材７と係合するように形成されている。エンドキャップ１０における小径部の内周面には、ロッド３ａとの間をシールするＯリング１２と、該Ｏリング１２よりも上端側に設けられてロッド３ａと摺動係合するブシュ１１と、Ｏリング１２よりも下端側に設けられ、後述するカップ状ネジ部材１４に対する緩衝材としてのクッション１３とを有する。また、大径部が設けられた部分は中空状で、カップ状ネジ部材１４及び後述するボルトホルダ２４を収容可能になされている。   An end cap 10 is provided at the lower end 1a of the cylinder 1 to form a closed end. The end cap 10 has a small-diameter portion 10a and a large-diameter portion 10b provided on the lower end side of the small-diameter portion 10a on the outer peripheral surface, and the small-diameter portion 10a is screw-engaged with the inner peripheral surface of the cylinder 1. The large-diameter portion 10b has an outer diameter larger than that of the cylinder 1 and is formed to engage with the valve member 7. On the inner peripheral surface of the small diameter portion of the end cap 10, an O-ring 12 that seals between the rod 3 a, a bush 11 that is provided on the upper end side of the O-ring 12 and slidingly engages with the rod 3 a, A cushion 13 is provided on the lower end side of the O-ring 12 and serves as a cushioning material for the cup-shaped screw member 14 described later. The portion provided with the large diameter portion is hollow and can accommodate the cup-shaped screw member 14 and a bolt holder 24 described later.

ピストン２は筒状の部材からなり、該筒状の部材を半径方向で貫通する圧搾空気取入孔３３を有する。ピストン２の内周面は、圧搾空気取入孔３３の上部位置でロッド３ａと密封摺動可能とされた密封摺動部２ｃを有し、該密封摺動部２ｃとピストン２の内周面２ａとエンドキャップ１０との間に圧搾空気を受け入れる加圧室３７を形成している。また、外周面２ｂは圧搾空気取入孔３３よりも下方位置においてシリンダ１の内周面と密封摺動可能とされた密封係合凸面２ｄを有し、該密封係合凸面２ｄとシリンダ１の密封係合凸部１ｆとピストン２の外周面２ｂとシリンダ１の内周面とにより環状室３６を形成している。   Piston 2 consists of a cylindrical member, and has the compressed air intake hole 33 which penetrates this cylindrical member by radial direction. The inner peripheral surface of the piston 2 has a sealing sliding portion 2c that can be hermetically slid with the rod 3a at an upper position of the compressed air intake hole 33. The inner peripheral surface of the sealing sliding portion 2c and the piston 2 A pressurizing chamber 37 for receiving compressed air is formed between 2a and the end cap 10. Further, the outer peripheral surface 2 b has a sealing engagement convex surface 2 d that can be slidably sealed with the inner peripheral surface of the cylinder 1 at a position below the compressed air intake hole 33, and the sealing engagement convex surface 2 d and the cylinder 1 An annular chamber 36 is formed by the sealing engagement convex portion 1 f, the outer peripheral surface 2 b of the piston 2, and the inner peripheral surface of the cylinder 1.

該環状室３６は、図１に示す状態では、圧搾空気入口３２及び圧搾空気取入孔３３に連通しており、圧搾空気は該環状室３６を通って加圧室３７に導入されるようになっている。   In the state shown in FIG. 1, the annular chamber 36 communicates with the compressed air inlet 32 and the compressed air intake hole 33 so that the compressed air is introduced into the pressurized chamber 37 through the annular chamber 36. It has become.

ピストン２は、加圧室３７に導入される圧搾空気により上方に駆動されて被打撃部３ｂを打撃するが（図４）、その行程において、該ピストンの外周面が圧搾空気取入孔３３と密封係合凸面２ｄとの間でシリンダ１の密封係合凸部１ｆに係合し、環状室３６が圧搾空気取入口３３から遮断される。これと同時に、圧搾空気取入口３３が、ピストンの外周面２ｂとシリンダ１の内周面との間に形成された排気用通路３８に連通され、シリンダに形成された圧搾空気出口３４を介して外部に連通されるようになされている。   The piston 2 is driven upward by the compressed air introduced into the pressurizing chamber 37 and strikes the hit portion 3b (FIG. 4). In the process, the outer peripheral surface of the piston is connected to the compressed air intake hole 33. Engage with the sealing engagement convex portion 1 f of the cylinder 1 between the sealing engagement convex surface 2 d and the annular chamber 36 is shut off from the compressed air intake port 33. At the same time, the compressed air inlet 33 communicates with an exhaust passage 38 formed between the outer peripheral surface 2b of the piston and the inner peripheral surface of the cylinder 1, and through a compressed air outlet 34 formed in the cylinder. It is designed to communicate with the outside.

衝撃付与部材３を構成するロッド３ａ下端には、係合端部としてのボルト２２が設けられている。詳細には、ロッド３ａの下端の外周面にカップ状ネジ部材１４が螺合され、更に六角穴付ボルト１５が該カップ状ネジ部材の底壁を通してロッド３ａの下端に螺合されて、カップ状ネジ部材１４をロッド３ａに固定する。該カップ状ネジ部材１４の外側には、同じくカップ状にされたボルトホルダ２４が螺合される。該ボルトホルダ２４の底壁には貫通孔が設けられており、該貫通孔を通してボルト２２が下方に延びるように取り付けられている。ボルト２２の頭部は座金２３と共にカップ状ネジ部材１４と該ボルトホルダ２４との底壁の間に挟着される。   At the lower end of the rod 3a constituting the impact applying member 3, a bolt 22 is provided as an engagement end. Specifically, a cup-shaped screw member 14 is screwed to the outer peripheral surface of the lower end of the rod 3a, and a hexagon socket head bolt 15 is screwed to the lower end of the rod 3a through the bottom wall of the cup-shaped screw member. The screw member 14 is fixed to the rod 3a. A bolt holder 24 that is also cup-shaped is screwed onto the outside of the cup-shaped screw member 14. A through hole is provided in the bottom wall of the bolt holder 24, and the bolt 22 is attached so as to extend downward through the through hole. The head of the bolt 22 is sandwiched between the cup-shaped screw member 14 and the bottom wall of the bolt holder 24 together with the washer 23.

被打撃部３ｂは、ロッド３ａより大径の円盤状の部材であり、その下面はピストン２が衝突する平坦面とされている。また、衝撃付与部材３の上端面には、把持部２６が設けられている。   The hit | damage part 3b is a disk-shaped member larger diameter than the rod 3a, and the lower surface is made into the flat surface where the piston 2 collides. A gripping portion 26 is provided on the upper end surface of the impact applying member 3.

弁部材７は、シリンダ１の周囲に同心状に取り付けられた筒状の部材からなり、その径方向に貫通させて形成された圧搾空気導入孔３１を有する。弁部材７は、シリンダ１の長手軸線方向で摺動可能に取り付けられており、圧搾空気導入孔３１がシリンダの圧搾空気入口３２に整合して圧搾空気をシリンダ１内に導入する作動位置（図３参照）と、圧搾空気導入孔３１が圧搾空気入口３２から外れて、圧搾空気のシリンダ１内へ導入されるのを阻止する非作動位置（図１参照）との間を軸線方向で変位可能とされている。   The valve member 7 is a cylindrical member attached concentrically around the cylinder 1 and has a compressed air introduction hole 31 formed so as to penetrate in the radial direction. The valve member 7 is attached so as to be slidable in the longitudinal axis direction of the cylinder 1, and the compressed air introduction hole 31 is aligned with the compressed air inlet 32 of the cylinder to introduce the compressed air into the cylinder 1 (see FIG. 3) and a non-operating position (see FIG. 1) that prevents the compressed air introduction hole 31 from being removed from the compressed air inlet 32 and introduced into the cylinder 1 in the axial direction. It is said that.

弁部材７の内周面７ｂには、シリンダの環状部１ｅよりも下側の小径部１ｄと摺動する環状突起部７ａが形成されており、シリンダ１の外周面の小径部１ｄ及び環状部１ｅ、弁部材７の内周面７ｂ及び環状突起部７ａによって室３５が画定されている。該室３５内にはコイルバネ９が設定されており、弁部材７を非作動位置に付勢している。弁部材７の環状突起部７ａは、エンドキャップ１０の大径部１０ｂに係合して、弁部材７が一端１ａ側から外れないようになされている。   An annular protrusion 7a is formed on the inner peripheral surface 7b of the valve member 7 so as to slide with the small diameter portion 1d below the annular portion 1e of the cylinder. The small diameter portion 1d and the annular portion of the outer peripheral surface of the cylinder 1 are formed. A chamber 35 is defined by 1e, the inner peripheral surface 7b of the valve member 7 and the annular protrusion 7a. A coil spring 9 is set in the chamber 35 to urge the valve member 7 to the non-operating position. The annular protrusion 7a of the valve member 7 engages with the large diameter portion 10b of the end cap 10 so that the valve member 7 does not come off from the one end 1a side.

弁部材７には、その圧搾空気導入孔３１の周囲を円筒状に径方向外方に延出して圧搾空気導入部４１が形成されており、該導入部４１に圧搾空気導入ホース５１のスライドスイッチ５０が螺合連結されるようになっている。   The valve member 7 is formed with a compressed air introduction portion 41 extending radially outward in a cylindrical shape around the compressed air introduction hole 31, and a slide switch for the compressed air introduction hose 51 in the introduction portion 41. 50 is screwed together.

ホースのスライドスイッチ５０は、筒状のスイッチ本体１６と、該スイッチ本体１６の外周面上で軸線方向で摺動可能とされた圧搾空気導入ホースに連通されたスリーブ２１とを有する。スイッチ本体１６は、弁部材７の圧搾空気導入孔３１に連通された第１通路３９ａと、圧搾空気導入ホースに連通された第２通路３９ｂとを有し、スリーブ２１の内周面には凹部２１ｃが形成されており、スリーブ２１は該凹部が第１及び第２通路を連通するＯＮ位置（図４）と、非連通とするＯＦＦ位置（図３）との間で変位可能とされており、圧縮バネ１８によりＯＦＦ位置に付勢されている。   The hose slide switch 50 includes a cylindrical switch body 16 and a sleeve 21 communicated with a compressed air introduction hose that is slidable in the axial direction on the outer peripheral surface of the switch body 16. The switch body 16 has a first passage 39 a that communicates with the compressed air introduction hole 31 of the valve member 7 and a second passage 39 b that communicates with the compressed air introduction hose. 21c is formed, and the sleeve 21 is displaceable between an ON position (FIG. 4) in which the concave portion communicates with the first and second passages and an OFF position (FIG. 3) in which the recess is not in communication. The compression spring 18 is biased to the OFF position.

シリンダ１の外周面には、その上端近くに緩衝材としてのＯリング４が設けられており、また、圧搾空気入口３２を挟んでシール部材としてのＯリング５、６が設置されている。   On the outer peripheral surface of the cylinder 1, an O-ring 4 as a cushioning material is provided near its upper end, and O-rings 5 and 6 as sealing members are installed with the compressed air inlet 32 interposed therebetween.

また、弁部材７の環状突起部７ａにはシール部材としてのＯリング８が設けられている。   An annular ring 7a of the valve member 7 is provided with an O-ring 8 as a seal member.

使用に際しては、先ず、係合端部としてのボルト２２をノックピン４０などの被処理物にねじ込む。次に、図３に示すように、弁部材７を矢印Ｂ方向に持ち上げて作動位置に位置し、スリーブ２１を矢印Ｃ方向に押し込み、図４に示すＯＮ位置にする。これにより、第１及び第２通路３９ａ、３９ｂ、圧搾空気導入孔３１、圧搾空気入口３２が整合され、圧搾空気が環状室３６に導入され、環状室３６から圧搾空気取入口３３を通じて、加圧室３７内に圧搾空気が導入される。   In use, first, the bolt 22 as the engagement end is screwed into the workpiece such as the knock pin 40. Next, as shown in FIG. 3, the valve member 7 is lifted in the direction of arrow B to be positioned at the operating position, and the sleeve 21 is pushed in the direction of arrow C to the ON position shown in FIG. As a result, the first and second passages 39a and 39b, the compressed air introduction hole 31, and the compressed air inlet 32 are aligned, and the compressed air is introduced into the annular chamber 36 and pressurized through the compressed air intake 33 from the annular chamber 36. Compressed air is introduced into the chamber 37.

これにより加圧室３７内部が圧搾空気により加圧され、ピストン２が上方に駆動され、衝撃付与部材３の被打撃部３ｂを打撃し（図４）、その衝撃はロッド３ａ及び係合端部２２としてのボルトを介してノックピン４０に伝わり、ノックピン４０は引きぬく方向の衝撃を受ける。   As a result, the inside of the pressurizing chamber 37 is pressurized by the compressed air, the piston 2 is driven upward, and hits the hit portion 3b of the impact applying member 3 (FIG. 4), and the impact is applied to the rod 3a and the engaging end portion. It is transmitted to the knock pin 40 via the bolt 22 and the knock pin 40 receives an impact in the pulling direction.

このとき、ピストン２の圧搾空気取入口３３が密封係合凸部１ｆよりも上方位置となり、これにより圧搾空気の加圧室３７への導入はされなくなり、同時に、加圧室３７内の空気は圧搾空気取入口３３及び排気用通路３８を通って圧搾空気出口３４から外部に排出される。同時に、環状室３６が圧搾空気によって加圧されるため、ピストン２は下方に駆動される。ピストンが下方位置となり、圧搾空気取入口３３が環状室３６と連通し、再度加圧室３７に圧搾空気が導入されると、再び、ピストン２が上方へ駆動されて被打撃部３ｂを打撃する。このようにして、ノックピン４０が抜けるまで、ピストンが往復動される。この際、手で握る弁部材７は、シリンダ１に対してピストン２の往復する方向に摺動するため、作動時の手に伝わる振動は低減されている。   At this time, the compressed air intake port 33 of the piston 2 is positioned above the sealing engagement convex portion 1 f, thereby preventing the compressed air from being introduced into the pressurizing chamber 37. The air is discharged from the compressed air outlet 34 through the compressed air inlet 33 and the exhaust passage 38. At the same time, since the annular chamber 36 is pressurized by the compressed air, the piston 2 is driven downward. When the piston is in the lower position, the compressed air inlet 33 communicates with the annular chamber 36, and the compressed air is again introduced into the pressurizing chamber 37, the piston 2 is again driven upward to strike the hit portion 3b. . In this way, the piston is reciprocated until the knock pin 40 comes out. At this time, since the valve member 7 held by the hand slides in the direction in which the piston 2 reciprocates with respect to the cylinder 1, vibration transmitted to the hand during operation is reduced.

ノックピン４０が抜けた場合には、図５に示すように、コイルバネ９により弁部材７がシリンダ１に対して相対的に下方に変位されて非作動位置となる。このとき、第１通路内にある圧搾空気は室３５内に導入され、弁部材７が非作動位置に変位させるよう作用する。これにより、圧搾空気の導入は遮断され、当該衝撃付与装置の作動は停止する。   When the knock pin 40 is pulled out, as shown in FIG. 5, the valve member 7 is displaced downward relative to the cylinder 1 by the coil spring 9 to be in an inoperative position. At this time, the compressed air in the first passage is introduced into the chamber 35 and acts so that the valve member 7 is displaced to the inoperative position. Thereby, introduction of compressed air is interrupted | blocked and the action | operation of the said impact provision apparatus stops.

以上、本発明にかかる実施形態につき説明したが、本発明はこれら実施形態に限定されるものではなく、本発明の趣旨を逸脱しない範囲で種々変更可能である。   As mentioned above, although embodiment concerning this invention was described, this invention is not limited to these embodiment, In the range which does not deviate from the meaning of this invention, it can change variously.

図１は、本発明の衝撃付与装置の１実施形態を示すロッド以外の部材を断面で示す一部断面図である。FIG. 1 is a partial cross-sectional view showing a member other than a rod, showing a first embodiment of the impact applying device of the present invention. 図２は、図１に示す衝撃付与装置の使用態様を示す図１相当図である。FIG. 2 is a view corresponding to FIG. 1 showing a usage mode of the impact applying device shown in FIG. 図３は、図１に示す衝撃付与装置の使用態様を示す図１相当図である。FIG. 3 is a view corresponding to FIG. 1 showing a usage mode of the impact applying device shown in FIG. 1. 図４は、図１に示す衝撃付与装置の使用態様を示す図１相当図である。FIG. 4 is a view corresponding to FIG. 1 showing a usage mode of the impact applying device shown in FIG. 図５は、図１に示す衝撃付与装置の使用態様を示す図１相当図である。FIG. 5 is a view corresponding to FIG. 1 illustrating a usage mode of the impact applying device illustrated in FIG. 1.

符号の説明Explanation of symbols

シリンダ１；ピストン２；ロッド３ａ；係合端部（ボルト）２２；被打撃部３ｂ；衝撃付与部材３；弁部材７；付勢手段９；圧搾空気入口３２；圧搾空気出口３４；大径部１ｃ；一端１ａ；小径部１ｄ；環状部１ｅ；内周面２ａ；外周面２ｂ；密封係合凸部１ｆ；エンドキャップ１０；小径部１０ａ；大径部１０ｂ；Ｏリング１２；ブシュ１１；カップ状ネジ部材１４；クッション１３；ボルトホルダ２４；密封摺動部２ｃ；加圧室３７；密封係合凸面２ｄ；環状室３６；排気用通路３８；六角穴付ボルト１５；ノックピン４０；座金２３；キャップ２５；把手部２６；内周面７ｂ；環状突起部７ａ；室３５；圧搾空気導入部４１；スライドスイッチ５０；スイッチ本体１６；スリーブ２１；凹部２１ｃ；バネ１８；第１通路３９ａ；第2通路３９ｂ；圧搾空気導入ホース５１；Ｏリング４；Ｏリング５；Ｏリング６；Ｏリング８ Cylinder 1; piston 2; rod 3a; engagement end (bolt) 22; hit part 3b; impact applying member 3; valve member 7; urging means 9; 1c; one end 1a; small diameter portion 1d; annular portion 1e; inner peripheral surface 2a; outer peripheral surface 2b; sealing engagement convex portion 1f; end cap 10; small diameter portion 10a; large diameter portion 10b; Screw member 14; cushion 13; bolt holder 24; sealing sliding portion 2c; pressurizing chamber 37; sealing engagement convex surface 2d; annular chamber 36; exhaust passage 38; hexagon socket head bolt 15; Cap 25; handle portion 26; inner peripheral surface 7b; annular protrusion 7a; chamber 35; compressed air introduction portion 41; slide switch 50; switch body 16; sleeve 21; aisle Compressed air introduction hose 51; O-ring 4; O-ring 5; O-ring 6; O-ring 8

Claims (10)

被処理物に衝撃を与える衝撃付与装置であって、
筒状の壁及び該壁を貫通して設けられた圧搾空気入口を有するシリンダと、
該シリンダ内に設けられ、該シリンダ内に導入される圧搾空気によって、当該シリンダの長手軸線方向で往復動可能とされたピストンと、
該シリンダ内に該長手軸線方向で変位可能に取り付けられ、該シリンダの一端から外側に延びて被処理物に係合される係合端部を有し、往動する該ピストンによって打撃されることにより被処理物に衝撃を与える衝撃付与部材と、
該シリンダの外側に該長手軸線方向で摺動可能に取り付けられた弁部材であって、圧搾空気導入孔を有し、該圧搾空気導入孔が該圧搾空気入口に整合し、圧搾空気をシリンダ内に導入する作動位置と、該圧搾空気導入孔が該圧搾空気入口から外れて、圧搾空気のシリンダ内への導入を阻止する非作動位置との間を該軸線方向で変位可能とされた弁部材と、
該弁部材を非作動位置に付勢する付勢手段と
を有することを特徴とする衝撃付与装置。 An impact applying device that applies an impact to a workpiece,
A cylinder having a cylindrical wall and a compressed air inlet provided through the wall;
A piston provided in the cylinder and reciprocally movable in the longitudinal axis direction of the cylinder by compressed air introduced into the cylinder;
The cylinder is displaceably mounted in the longitudinal axis direction, has an engagement end that extends outward from one end of the cylinder and engages with a workpiece, and is struck by the piston that moves forward. An impact applying member that gives an impact to the object to be processed by
A valve member slidably attached to the outside of the cylinder in the longitudinal axis direction, having a compressed air introduction hole, the compressed air introduction hole being aligned with the compressed air inlet, and allowing the compressed air to enter the cylinder A valve member that is displaceable in the axial direction between an operating position for introducing the compressed air and a non-operating position for preventing the compressed air from being introduced into the cylinder by removing the compressed air introduction hole from the compressed air inlet. When,
And an urging means for urging the valve member to the inoperative position. 該弁部材が該シリンダの周囲に同心状に取り付けられた筒状の部材とされている請求項１に記載の衝撃付与装置。   The impact applying apparatus according to claim 1, wherein the valve member is a cylindrical member attached concentrically around the cylinder. 該付勢手段が、該シリンダと該弁部材との間に設けられたバネとされている請求項１又は２に記載の衝撃付与装置。   The impact applying device according to claim 1 or 2, wherein the biasing means is a spring provided between the cylinder and the valve member. 該シリンダの筒状の壁と該弁部材との間に形成された室を有し、圧搾空気導入孔から導入された圧搾空気が該室内に導入されて、該弁部材を非作動位置に付勢するようにした請求項１乃至３の何れかに記載の衝撃付与装置。   A chamber formed between the cylindrical wall of the cylinder and the valve member; the compressed air introduced from the compressed air introduction hole is introduced into the chamber to attach the valve member to the non-operating position; The impact applying device according to any one of claims 1 to 3, wherein the device is applied. 該シリンダの筒状の壁の外周面が、該圧搾空気入口が形成されている大径部と該大径部よりも該シリンダの該一端側に設けられた小径部と、該大径部及び該小径部の間で半径方向に延びる環状部を有し、
該弁部材が、該シリンダの大径部と摺動する内周面を有し、該内周面が該環状部よりも該一端側の位置に該小径部と摺動する環状突起部を有し、
該室が、該シリンダの外周面の該小径部及び環状部、該弁部材の内周面及び環状突起部によって画定されている請求項４に記載の衝撃付与装置。 An outer peripheral surface of the cylindrical wall of the cylinder includes a large-diameter portion where the compressed air inlet is formed, a small-diameter portion provided on the one end side of the cylinder from the large-diameter portion, the large-diameter portion, An annular portion extending radially between the small diameter portions;
The valve member has an inner peripheral surface that slides with the large-diameter portion of the cylinder, and the inner peripheral surface has an annular protrusion that slides with the small-diameter portion at a position closer to the one end than the annular portion. And
The impact applying device according to claim 4, wherein the chamber is defined by the small diameter portion and the annular portion of the outer peripheral surface of the cylinder, and the inner peripheral surface and the annular protrusion of the valve member. 該バネが該シリンダの筒状の壁の周りに設定され、該室内に収納されていることを特徴とする請求項５に記載の衝撃付与装置。   6. The impact applying device according to claim 5, wherein the spring is set around a cylindrical wall of the cylinder and is housed in the chamber. 該ピストンが該シリンダの内周面と摺動される外周面を有する筒状の部材とされ、
該衝撃付与部材が、該ピストンを該長手軸線方向で貫通するロッドを有し、該ロッドの一端に該係合端部が設けられ、他端が往動する該ピストンによって打撃される被打撃部を有する請求項１乃至６のいずれかに記載の衝撃付与装置。 The piston is a cylindrical member having an outer peripheral surface that is slid with an inner peripheral surface of the cylinder,
The impact imparting member has a rod penetrating the piston in the longitudinal axis direction, the engagement end portion is provided at one end of the rod, and the hit portion hit by the piston with the other end moving forward The impact applying apparatus according to claim 1, comprising: 該シリンダの該一端が閉止端部とされ、該ロッドは該閉止端部を貫通して延び、
該ピストンが半径方向で貫通する圧搾空気取入孔を有し、該ピストンの内周面が該圧搾空気取入孔よりも該被打撃部寄りにおいて該ロッドと密封摺動可能とされた密封摺動部を有し、該密封摺動部と該シリンダの閉止端部との間に加圧室が形成されて、該圧搾空気取入孔からの圧搾空気は該加圧室に導入されて該ピストンを往動方向に駆動するようにされている請求項７に記載の衝撃付与装置。 The one end of the cylinder is a closed end, and the rod extends through the closed end;
The piston has a compressed air intake hole through which the piston penetrates in the radial direction, and the inner peripheral surface of the piston is hermetically slidable with the rod closer to the hit portion than the compressed air intake hole. A pressure chamber is formed between the sealed sliding portion and the closed end of the cylinder, and compressed air from the compressed air intake hole is introduced into the pressure chamber and The impact applying device according to claim 7, wherein the piston is driven in the forward movement direction. 該ピストンが圧搾空気により往動され該ロッドの被打撃部に衝突する間の行程において、該加圧室が当該衝撃付与装置の外部と連通されるようにされている請求項８に記載の衝撃付与装置。   The impact according to claim 8, wherein the pressurizing chamber is communicated with the outside of the impact applying device in a stroke while the piston is moved forward by the compressed air and collides with the hit portion of the rod. Granting device. 該シリンダの内周面が、圧搾空気により該ロッドの被打撃部に向けて駆動される前の状態において、該圧搾空気取入孔よりも該被打撃部側において該ピストンの外周面と摺動可能に密封係合する密封係合凸部を有し、
該ピストンの外周面が、圧搾空気により該ロッドの被打撃部に向けて駆動される前の状態において、該圧搾空気取入孔よりも該係合端部寄りの位置で該シリンダの内周面と摺動可能に密封係合する密封係合凸面を有し、該密封係合凸面と該密封係合凸部との間で、且つ該ピストンの外周面と該シリンダの内周面との間において、該圧搾空気入口と常時連通する環状室を有し、該環状室は、該ピストンが圧搾空気により往動され該ロッドの被打撃部に衝突する間の行程において、該加圧室が当該衝撃付与装置の外部に連通されるときに該圧搾空気取入孔が遮断されて、該圧搾空気入口から導入される圧搾空気によって内部が加圧され、ピストンを復動方向に付勢するようにされている請求項９に記載の衝撃付与装置。 In a state before the inner peripheral surface of the cylinder is driven toward the hit portion of the rod by the compressed air, it slides on the outer peripheral surface of the piston on the hit portion side of the compressed air intake hole. Having a sealing engagement projection for sealingly engaging,
The inner peripheral surface of the cylinder at a position closer to the engaging end than the compressed air intake hole in a state before the outer peripheral surface of the piston is driven toward the hit portion of the rod by the compressed air A sealing engagement convex surface that slidably and slidably engages between the sealing engagement convex surface and the sealing engagement convex portion, and between the outer peripheral surface of the piston and the inner peripheral surface of the cylinder. The annular chamber is always in communication with the compressed air inlet. The compressed air intake hole is blocked when communicating with the outside of the impact applying device, the inside is pressurized by the compressed air introduced from the compressed air inlet, and the piston is urged in the backward movement direction. The impact imparting device according to claim 9.
JP2008119088A 2008-04-30 2008-04-30 Impact applying device Expired - Fee Related JP5006831B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2008119088A JP5006831B2 (en) 2008-04-30 2008-04-30 Impact applying device
PCT/JP2009/058499 WO2009133933A1 (en) 2008-04-30 2009-04-30 Impact imparting device
TW98114436A TW201000272A (en) 2008-04-30 2009-04-30 Impact imparting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008119088A JP5006831B2 (en) 2008-04-30 2008-04-30 Impact applying device

Publications (2)

Publication Number Publication Date
JP2009269098A true JP2009269098A (en) 2009-11-19
JP5006831B2 JP5006831B2 (en) 2012-08-22

Family

ID=41255148

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008119088A Expired - Fee Related JP5006831B2 (en) 2008-04-30 2008-04-30 Impact applying device

Country Status (3)

Country Link
JP (1) JP5006831B2 (en)
TW (1) TW201000272A (en)
WO (1) WO2009133933A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101156211B1 (en) 2011-12-16 2012-06-18 주식회사 티프렌즈 The pin remover

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104209927B (en) * 2014-07-25 2015-12-02 符文林 A kind of nail pull out machine
CN112589712A (en) * 2020-11-26 2021-04-02 陕西时盛科邦建设工程有限公司 Leak-proof antifriction pin shaft dismounting mechanism
CN114161360B (en) * 2021-11-26 2024-04-12 北京新风航天装备有限公司 Be used for interference fastener installation and extracting tool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04300172A (en) * 1991-03-27 1992-10-23 Furukawa Co Ltd Hydraulic impacting mechanism
JPH05285857A (en) * 1992-02-10 1993-11-02 Donald R Mead Pneumatically driven reverse impact device
JP2003071744A (en) * 2001-09-05 2003-03-12 Nippon Pneumatic Mfg Co Ltd Impact dynamic tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04300172A (en) * 1991-03-27 1992-10-23 Furukawa Co Ltd Hydraulic impacting mechanism
JPH05285857A (en) * 1992-02-10 1993-11-02 Donald R Mead Pneumatically driven reverse impact device
JP2003071744A (en) * 2001-09-05 2003-03-12 Nippon Pneumatic Mfg Co Ltd Impact dynamic tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101156211B1 (en) 2011-12-16 2012-06-18 주식회사 티프렌즈 The pin remover

Also Published As

Publication number Publication date
WO2009133933A1 (en) 2009-11-05
TW201000272A (en) 2010-01-01
JP5006831B2 (en) 2012-08-22

Similar Documents

Publication Publication Date Title
US10744629B2 (en) Fastener driving tool
US8651458B2 (en) Hand-operating vacuum pulling device
JP5006831B2 (en) Impact applying device
KR101410404B1 (en) Air hammer tool, and method of adjusting impact force of the air hammer tool
CA2865996C (en) Lockout for fastener-driving tool
TW200402345A (en) Clamp device
JP2008194817A (en) Hand tool device equipped with air pressure type hammering mechanism
JP2014233770A (en) Driving machine
US4102534A (en) Pneumatic hammer
JP4232933B2 (en) Work support
JP2001523170A (en) Fastener driving device with compatible control module
US7373992B2 (en) Automatic pressure regulating valve for a pneumatic tool
JP2675036B2 (en) Impact device
JP2010064225A (en) Driving machine
US8746527B2 (en) High efficiency pneumatic nailer
JP4564456B2 (en) Pneumatic reciprocating tool.
JP6382167B2 (en) Impact tool
TWM517079U (en) Reciprocating pneumatic tool
JP2008229793A (en) Workpiece holding device
JP4043402B2 (en) Impact tool
JP2006218585A (en) Nailing machine
JP4064227B2 (en) Pneumatic fastener driving machine
JP2004291125A (en) Impact transmission tool
JP2004358524A (en) Riveting device
JP5741940B2 (en) Driving machine

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100126

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120502

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120525

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150601

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees