JP2595850Y2 - Impact tool - Google Patents

Impact tool

Info

Publication number
JP2595850Y2
JP2595850Y2 JP1992065181U JP6518192U JP2595850Y2 JP 2595850 Y2 JP2595850 Y2 JP 2595850Y2 JP 1992065181 U JP1992065181 U JP 1992065181U JP 6518192 U JP6518192 U JP 6518192U JP 2595850 Y2 JP2595850 Y2 JP 2595850Y2
Authority
JP
Japan
Prior art keywords
clutch
housing
wall
claw
impact tool
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.)
Expired - Lifetime
Application number
JP1992065181U
Other languages
Japanese (ja)
Other versions
JPH0627078U (en
Inventor
雅隆 鴨野
喜彦 渡辺
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.)
Koki Holdings Co Ltd
Original Assignee
Hitachi Koki 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 Hitachi Koki Co Ltd filed Critical Hitachi Koki Co Ltd
Priority to JP1992065181U priority Critical patent/JP2595850Y2/en
Publication of JPH0627078U publication Critical patent/JPH0627078U/en
Application granted granted Critical
Publication of JP2595850Y2 publication Critical patent/JP2595850Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)

Description

【考案の詳細な説明】[Detailed description of the invention]

【0001】[0001]

【産業上の利用分野】本考案は、打撃工具のように、工
具に打撃または回転と打撃を作用する機構部室内の潤滑
剤の封入方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of sealing a lubricant in a mechanical chamber for hitting, rotating and hitting a tool, such as a hitting tool.

【0002】[0002]

【従来の技術】従来の打撃工具は、前記機構部室内を分
割せずに1つの該機構部室で形成されていた。
2. Description of the Related Art A conventional impact tool is formed of a single mechanical part room without dividing the mechanical part room.

【0003】[0003]

【考案が解決しようとする課題】従来の打撃工具では、
一方向の連続作業(天井、横壁、下床作業等)により潤
滑剤が重力方向に片寄り、往復運動するピストン、打撃
子等の打撃部の潤滑切れ、また、回転を往復動に変換す
る変換機構部等の常に潤滑剤を必要とする部分が潤滑切
れを起こし、摺動部の発熱、カジリによるロックを生
じ、打撃工具の寿命が短いという問題があった。本考案
の目的は、打撃工具が一方向の連続作業等をしても、潤
滑剤が重力方向のハウジング内壁に片寄らず、少ない潤
滑剤で該打撃部、変換機構部、伝達部の摺動部分等に常
に潤滑剤を供給することである。
[Problem to be solved by the invention] In the conventional impact tool,
Due to the one-way continuous work (ceiling, side wall, lower floor work, etc.), the lubricant is deviated in the direction of gravity, the lubrication of the striking parts such as the reciprocating piston, striker, etc., and the conversion to convert the rotation into reciprocating motion There has been a problem in that a portion that always requires lubricant such as a mechanism portion runs out of lubrication, heat is generated in the sliding portion, and locking occurs due to galling, and the life of the impact tool is short. The object of the present invention is that even when the impact tool performs a continuous operation in one direction or the like, the lubricant does not lean on the inner wall of the housing in the direction of gravity, and the sliding portion of the impact portion, the conversion mechanism portion, the transmission portion with a small amount of lubricant. Etc. is to always supply lubricant.

【0004】[0004]

【課題を解決するための手段】上記目的は、該機構部室
を2つ以上に分割するための内壁を設けることにより達
成される。前記内壁は、機構部内の摺動・回転部材に接
触しない様に、かつ、該摺動・回転部材との隙間を少な
くすることにより達成される。また、ハウジングと前記
内壁を一体にしたり、別部品として内蔵物と一緒に組み
込むと良い。
The above object is achieved by providing an inner wall for dividing the mechanism chamber into two or more sections. The inner wall is achieved by not contacting the sliding / rotating member in the mechanism section and reducing the gap between the sliding / rotating member. Further, it is preferable that the housing and the inner wall be integrated with each other or incorporated together with the built-in component as a separate part.

【0005】[0005]

【作用】上記のように構成された打撃工具を一方向の連
続作業等を行ったとき、機構部室に設けた内壁は、潤滑
剤の重力方向への片寄りを塞き止め、更に潤滑剤は該内
壁を伝い、該機構部内の回転や摺動運動を行う部材へ潤
滑剤を供給する案内となるように作用する。また、該内
壁は、二つ割りハウジングの構造のものは、ハウジング
に一体に設けた該内壁で該機構部内を分割することがで
き、筒形ハウジングの構造のものは、別部品の壁を該機
構部内に組み込むことで可能となる。
When the impact tool constructed as described above is continuously operated in one direction or the like, the inner wall provided in the mechanism section chamber blocks the bias of the lubricant in the gravitational direction. It acts on the inner wall to serve as a guide for supplying lubricant to a member that performs rotation or sliding movement in the mechanism. In the case of a split housing structure, the inner wall can be divided by the inner wall provided integrally with the housing, and in the case of a cylindrical housing structure, the wall of another part can be separated by the inner wall. It becomes possible by incorporating it into

【0006】[0006]

【実施例】以下、本考案を図1、2の一実施例にもとづ
いて説明すると、駆動軸2の回転運動は、ファーストギ
ヤ3を経て、中間軸4に伝達される。更に中間軸4は、
シリンダ6上に設けられたセカンドギヤ5を経てシリン
ダ6を回転させ、先端工具7に常に回転を伝達してい
る。前記中間軸4上には、回転可能に遊合した揺動体8
とクラッチ9が配設され、クラッチ9は軸方向に移動可
能で中間軸4上に有したスプラインとクラッチ9の内径
部に有したスプラインにより係合し、配設されている。
シリンダ6はスプリング17によりスラストプレート1
0、スラストベアリング11を介して、常時前方に付勢
されており、軸方向に移動可能に配設されている。スラ
ストプレート10は、該クラッチ9の溝部9aに当接
し、前進時は、クラッチ9も同時に前進する。シリンダ
6には、シリンダ6と同心のフランジ部6aが、クラッ
チ9の側面で重合する様に形成されている。クラッチ9
を後退させると揺動体8の一端に設けたクラッチ爪と
クラッチ9の対向する端部に設けたクラッチ爪の凹凸が
かみあい、中間軸4と揺動体8とが係合する構成であ
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to one embodiment of FIGS. 1 and 2. Rotational movement of a drive shaft 2 is transmitted to an intermediate shaft 4 via a first gear 3. FIG. Further, the intermediate shaft 4
The cylinder 6 is rotated through a second gear 5 provided on the cylinder 6, and the rotation is constantly transmitted to the tip tool 7. On the intermediate shaft 4, an oscillating body 8 rotatably fitted is provided.
And a clutch 9, which is movable in the axial direction and is engaged with a spline provided on the intermediate shaft 4 and a spline provided on the inner diameter portion of the clutch 9.
Cylinder 6 is driven by spring 17 to thrust plate 1
0, it is constantly urged forward via a thrust bearing 11, and is disposed so as to be movable in the axial direction. The thrust plate 10 comes into contact with the groove 9a of the clutch 9, and at the time of forward movement, the clutch 9 also advances at the same time. A flange 6 a concentric with the cylinder 6 is formed on the cylinder 6 so as to overlap on the side surface of the clutch 9. Clutch 9
Retracting and a clutch pawl provided at one end of the oscillator 8
The configuration is such that the unevenness of the clutch pawl provided at the opposite end of the clutch 9 engages, and the intermediate shaft 4 and the rocking body 8 are engaged .

【0007】この構造において、図1に示すように先端
工具7を被削材に押し付けるとシリンダ6は、スプリン
グ17を抗して後方に移動する。同時にシリンダ6に当
接し、クラッチ9を後退させる。これによりクラッチ9
が揺動体8に係合するため、中間軸4の駆動力が揺動体
8に伝達されピストン12を経て往復動する。更にピス
トン13内に設けられた空気室14の空気バネにより打
撃子15が追従し、中間子16を介して先端工具7を打
撃する。これらの打撃部、回転を往復動に変換する変換
部、回転伝達部を総称して機構部が、二つ割りハウジン
グ1のほぼ中央で締付ネジ22で取付き、この突当面に
潤滑剤のシールを良好にするゴムシール23を配設して
いる。また、該ハウジング1内には、軸受を支持するイ
ンナカバ20が設けられ、剛性の向上を図っている。該
ハウジング1の内側には、回転・摺動部材に接触しない
少ないクリアランス21で機構部室18内を分割するた
めの内壁1aを、クラッチ9の爪と揺動体8の爪との噛
合個所近傍の周囲を囲むようにハウジングと一体で設け
られている。これにより連続上向き作業等一方向に本体
を保持した作業による潤滑剤の片寄りが生じても回転部
材や摺動部材に常に潤滑剤が容易に接触するように出来
る。また、本実施例では、回転部材であるクラッチ9と
内壁1aとのクリアランス21部分を潤滑剤が通過する
構造となり、発熱や、摩耗が生じやすいクラッチ部分に
潤滑剤の供給が容易となり、発熱・摩耗が生じやすい摺
動部、回転部の寿命向上が図れるとともに潤滑剤の充填
量も減少することが可能で、原価低減等の大幅な効果が
得られる。
In this structure, when the tip tool 7 is pressed against the workpiece as shown in FIG. 1, the cylinder 6 moves rearward against the spring 17. At the same time, it comes into contact with the cylinder 6 and retreats the clutch 9. As a result, the clutch 9
Engages with the rocking body 8, the driving force of the intermediate shaft 4 is transmitted to the rocking body 8, and reciprocates via the piston 12. Further, the striker 15 follows the air spring of the air chamber 14 provided in the piston 13, and strikes the tip tool 7 via the intermediate member 16. A mechanical portion is collectively referred to as a hitting portion, a converting portion for converting rotation into reciprocating motion, and a rotation transmitting portion, with a tightening screw 22 substantially at the center of the split housing 1, and a lubricant seal is provided on this abutting surface. A good rubber seal 23 is provided. In the housing 1, an inner cover 20 for supporting a bearing is provided to improve rigidity. Inside the housing 1, an inner wall 1 a for dividing the inside of the mechanism section chamber 18 with a small clearance 21 that does not come into contact with the rotating / sliding member is provided between the claw of the clutch 9 and the claw of the oscillator 8.
It is provided integrally with the housing so as to surround the periphery near the joint . Thus, even when the lubricant is biased due to an operation of holding the main body in one direction such as a continuous upward operation, the lubricant can always easily come into contact with the rotating member and the sliding member. Further, in the present embodiment, the structure is such that the lubricant passes through the clearance 21 between the clutch 9 as the rotating member and the inner wall 1a, and the supply of the lubricant to the clutch portion where heat and wear are likely to occur is facilitated. The service life of the sliding portion and the rotating portion, which are liable to be worn, can be improved, and the amount of the lubricant to be filled can be reduced, so that significant effects such as cost reduction can be obtained.

【0008】[0008]

【考案の効果】本考案によれば、ハウジング1の内側に
回転・摺動部材に接触しない少ないクリアランス21で
機構部室18内を分割するための内壁1aを該機構部室
18のほぼ中央にハウジング1と一体で設けたので、連
続上向き作業等一方向に本体を保持した作業による潤滑
剤の片寄りが生じても回転部材や摺動部材に常に潤滑剤
が容易に接触するように出来る。更に潤滑剤の供給が容
易となったので、発熱、摩耗が生じやすい回転部、摺動
部の寿命向上が図れるとともに潤滑剤の充填量を減少さ
せる事が可能で、原価低減等の効果が得られる。
According to the present invention, an inner wall 1a for dividing the inside of the mechanism room 18 with a small clearance 21 which does not come into contact with the rotating / sliding member is provided at the center of the housing 1 inside the housing 1. Since the lubrication is integrally provided, even if the lubricant is biased due to the operation of holding the main body in one direction, such as continuous upward operation, the lubricant can always easily come into contact with the rotating member and the sliding member. Furthermore, since the supply of lubricant has become easier, it is possible to improve the life of the rotating and sliding parts, which are likely to generate heat and wear, and to reduce the amount of lubricant to be filled. Can be

【図面の簡単な説明】[Brief description of the drawings]

【図1】 本考案工具の一実施例を示す要部の縦断側面
図である。
FIG. 1 is a longitudinal sectional side view of a main part showing an embodiment of the tool of the present invention.

【図2】 図1のA−A線断面図である。FIG. 2 is a sectional view taken along line AA of FIG.

【符号の説明】[Explanation of symbols]

1はハウジング、1aは内壁、2は駆動軸、3はファー
ストギヤ、4は中間軸、7は先端工具、8は揺動体、9
はクラッチ、12はピストンピン、13はピストン、1
4は空気室、15は打撃子、18は機構部室、21はク
リアランスである。
1 is a housing, 1a is an inner wall, 2 is a drive shaft, 3 is a first gear, 4 is an intermediate shaft, 7 is a tip tool, 8 is a rocking body, 9
Is a clutch, 12 is a piston pin, 13 is a piston, 1
4 is an air chamber, 15 is a striker, 18 is a mechanism room, and 21 is a clearance.

Claims (3)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項1】 駆動軸を有するモータと、該モータの回
転を伝達する中間軸と、該中間軸上で該中間軸に対して
一体回転し軸方向に移動可能で且つ一端に爪を有するク
ラッチと、該クラッチの軸方向移動により該クラッチの
爪と噛合可能な爪を有し且つ該中間軸上で該中間軸に対
して回転可能に配され、該クラッチとの係合により回転
を往復動に変換する揺動体とを、本体枠を形成するハウ
ジング内に内蔵し、該ハウジング内に潤滑材を封入した
打撃工具において、前記クラッチの爪と前記揺動体の爪
との噛合個所近傍の周囲を所定のクリアランスをもって
囲む内壁を設けたことを特徴とする打撃工具。
A motor having a drive shaft and a rotation of the motor
An intermediate shaft for transmitting rolling, and on the intermediate shaft,
Claw that is integrally rotatable and movable in the axial direction and has a claw at one end
A latch and axial movement of the clutch
A claw that can be engaged with the claw, and that is
Rotatably arranged and rotated by engagement with the clutch.
And an oscillator that converts the reciprocating motion into a reciprocating motion.
Built in the jing, and lubricated in the housing
In a striking tool, the claws of the clutch and the claws of the oscillator are provided.
With a predetermined clearance around the vicinity of the meshing point with
A striking tool characterized by providing an inner wall to surround .
【請求項2】 前記内壁を前記ハウジングと一体にする
ことを特徴とする請求項1記載の打撃工具。
2. The interior wall is integral with the housing.
The impact tool according to claim 1, wherein:
【請求項3】 前記内壁を前記ハウジングと別部品とす
ることを特徴とする請求項1記載の打撃工具。
3. The housing according to claim 2, wherein the inner wall is a separate part from the housing.
The impact tool according to claim 1, wherein the impact tool is used.
JP1992065181U 1992-09-18 1992-09-18 Impact tool Expired - Lifetime JP2595850Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1992065181U JP2595850Y2 (en) 1992-09-18 1992-09-18 Impact tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1992065181U JP2595850Y2 (en) 1992-09-18 1992-09-18 Impact tool

Publications (2)

Publication Number Publication Date
JPH0627078U JPH0627078U (en) 1994-04-12
JP2595850Y2 true JP2595850Y2 (en) 1999-06-02

Family

ID=13279491

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1992065181U Expired - Lifetime JP2595850Y2 (en) 1992-09-18 1992-09-18 Impact tool

Country Status (1)

Country Link
JP (1) JP2595850Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4622461B2 (en) * 2004-11-05 2011-02-02 日立工機株式会社 Electric tool

Also Published As

Publication number Publication date
JPH0627078U (en) 1994-04-12

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