JPH0235684U - - Google Patents
Info
- Publication number
- JPH0235684U JPH0235684U JP11225688U JP11225688U JPH0235684U JP H0235684 U JPH0235684 U JP H0235684U JP 11225688 U JP11225688 U JP 11225688U JP 11225688 U JP11225688 U JP 11225688U JP H0235684 U JPH0235684 U JP H0235684U
- Authority
- JP
- Japan
- Prior art keywords
- cylinder chamber
- striker
- striker member
- axial direction
- sliding hole
- 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.)
- Pending
Links
- 230000002265 prevention Effects 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims 2
- 238000010304 firing Methods 0.000 claims 1
- 238000007562 laser obscuration time method Methods 0.000 description 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
Description
第１図は本考案の実施例にかかる空打ち防止装
置を備えた打撃工具を示す縦断面図、第２図は第
１図図示の打撃工具における空打ち移行時の状態
を示す要部縦断面図、第３図は第１図図示の打撃
工具における空打ち時の状態を示す要部縦断面図
、第４図は第１図図示の打撃工具における実打移
行時の状態を示す要部縦断面図である。
１……打撃工具本体、２……摺動穴、３……ス
トライカー部材、４……ピストン部材、５……空
気室、６……駆動手段、７……チゼル部材、８…
…係合凹部、１６……第１シリンダ室、１７……
当接部材、１９……貫通孔、２１……第２シリン
ダ室、２２……ストツパー部材。
FIG. 1 is a longitudinal sectional view showing a striking tool equipped with a dry striking prevention device according to an embodiment of the present invention, and FIG. 2 is a longitudinal sectional view of a main part showing the state of the striking tool shown in FIG. 1 at the time of transition to blank striking. 3 is a vertical sectional view of a main part showing the state of the impact tool shown in FIG. 1 during dry striking, and FIG. 4 is a longitudinal sectional view of a main part showing the state of the impact tool shown in FIG. It is a front view. DESCRIPTION OF SYMBOLS 1... Impact tool body, 2... Sliding hole, 3... Striker member, 4... Piston member, 5... Air chamber, 6... Drive means, 7... Chisel member, 8...
...Engagement recess, 16...First cylinder chamber, 17...
Contact member, 19...through hole, 21...second cylinder chamber, 22...stopper member.
Claims (1)
あつて軸方向に摺動自在とされたストライカー部
材と、該ストライカー部材の後方にあつてストラ
イカー部材との間に空気室を形成すべく前記摺動
穴内に軸方向摺動自在に装着されたピストン部材
と、該ピストン部材を軸方向に往復摺動させる駆
動手段と、前記ストライカー部材の前方にあつて
前記ピストン部材の往復摺動により圧縮・膨張さ
れる空気室を介して前後動するストライカー部材
により打撃されるチゼル部材とを備えた打撃工具
において、前記摺動穴の前方位置には、軸方向に
延び且つ作動流体が封入されている第１シリンダ
室が形成され、該第１シリンダ室内には、軸心部
に前記チゼル部材が貫通挿入される貫通孔を有し
且つ後端面に前記ストライカー部材が当接される
当接面を有する当接部材が軸方向に摺動可能に嵌
挿される一方、前記第１シリンダ室より後方であ
つて前記ストライカー部材より前方の打撃工具本
体内には、前記第１シリンダ室と連通された第２
シリンダ室が径方向に形成され、該第２シリンダ
室内には、前記ストライカー部材による前記当接
部材の打撃により圧縮作動される前記作動流体に
より前記摺動穴内方へ突出させるべく作用するス
トツパー部材が摺動自在に嵌挿されていて、前記
ストライカー部材の外周面には、ストライカー部
材による当接部材打撃時に前記ストツパー部材が
係合される係合凹部が形成されていることを特徴
とする打撃工具の空打ち防止装置。 In order to form an air chamber between a striker member that is slidable in the axial direction within an axial sliding hole formed in the impact tool body and a striker member that is located at the rear of the striker member, A piston member is installed in a sliding hole so as to be slidable in the axial direction, a driving means is provided for reciprocating the piston member in the axial direction, and a driving means is provided in front of the striker member to compress and compress the piston member by reciprocating the piston member. The striking tool includes a chisel member that is struck by a striker member that moves back and forth through an air chamber that is expanded, and a chisel member that extends in the axial direction and is filled with a working fluid is located in front of the sliding hole. A first cylinder chamber is formed in the first cylinder chamber, and the first cylinder chamber has a through hole in its axial center portion through which the chisel member is inserted, and a contact surface on the rear end surface of which the striker member comes into contact. The contacting member is slidably inserted in the axial direction, and a second cylinder chamber, which is in communication with the first cylinder chamber, is provided in the impact tool body rearwardly from the first cylinder chamber and in front of the striker member.
A cylinder chamber is formed in the radial direction, and within the second cylinder chamber is a stopper member that acts to protrude inward of the sliding hole by the working fluid that is compressed by the striker member hitting the abutment member. A striking tool that is slidably inserted into the striker member, and has an engagement recess formed in the outer circumferential surface of the striker member, with which the stopper member is engaged when the striker member hits the contact member. Dry firing prevention device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11225688U JPH0235684U (en) | 1988-08-27 | 1988-08-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11225688U JPH0235684U (en) | 1988-08-27 | 1988-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0235684U true JPH0235684U (en) | 1990-03-07 |
Family
ID=31351030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11225688U Pending JPH0235684U (en) | 1988-08-27 | 1988-08-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0235684U (en) |
-
1988
- 1988-08-27 JP JP11225688U patent/JPH0235684U/ja active Pending
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