JPH0355161U - - Google Patents
Info
- Publication number
- JPH0355161U JPH0355161U JP11572889U JP11572889U JPH0355161U JP H0355161 U JPH0355161 U JP H0355161U JP 11572889 U JP11572889 U JP 11572889U JP 11572889 U JP11572889 U JP 11572889U JP H0355161 U JPH0355161 U JP H0355161U
- Authority
- JP
- Japan
- Prior art keywords
- hammer
- cam
- spindle
- steel ball
- elastic body
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 2
- KJFBVJALEQWJBS-XUXIUFHCSA-N maribavir Chemical compound CC(C)NC1=NC2=CC(Cl)=C(Cl)C=C2N1[C@H]1O[C@@H](CO)[C@H](O)[C@@H]1O KJFBVJALEQWJBS-XUXIUFHCSA-N 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 1
Landscapes
- Percussive Tools And Related Accessories (AREA)
Description
第１図〜第３図は本考案の実施例を示すもので
、第１図はインパクトレンチ打撃機構部の側面断
面図、第２図は弾性体によりハンマの後退量が規
制されたモデル図、第３図は、強制的に弾性体を
変形させたスチールボール挿入状態モデル図であ
る。第４図は従来技術によるインパクトレンチ打
撃機構部の側面断面図、第５図は従来技術による
ハンマが最大後退時のモデル図である。
図において、１……ハウジング、２……減速部
、３……スピンドル、４……スピンドルカム溝、
５……ハンマ、６……ハンマカム溝、７……スチ
ールボール、８……スプリング、９……ハンマ爪
、１０……アンビル、１２……スピンドル段付部
、１３……ハンマケース、１４……弾性体、１５
……溝部、５ａ……ハンマ端面である。
Figures 1 to 3 show an embodiment of the present invention; Figure 1 is a side sectional view of the impact wrench striking mechanism; Figure 2 is a model diagram in which the amount of retraction of the hammer is regulated by an elastic body; FIG. 3 is a model diagram of a steel ball inserted state in which the elastic body is forcibly deformed. FIG. 4 is a side cross-sectional view of an impact wrench striking mechanism according to the prior art, and FIG. 5 is a model diagram of the prior art when the hammer is at its maximum retreat. In the figure, 1...housing, 2...reduction unit, 3...spindle, 4...spindle cam groove,
5...Hammer, 6...Hammer cam groove, 7...Steel ball, 8...Spring, 9...Hammer claw, 10...Anvil, 12...Spindle stepped portion, 13...Hammer case, 14... Elastic body, 15
. . . Groove portion, 5a . . . Hammer end face.
Claims (1)
形成されたスピンドルカム、ハンマカムをスチー
ルボールを介してスピンドルカムに付勢させるス
プリングを有し、ハンマの回転運動を往復運動に
変換するカム機構を備えた衆知のインパクトレン
チにおいて、ハンマの軸方向に移動する後退量を
、ハンマが移動するスピンドル軸端面に配設した
ゴム部材または、板バネ等の弾性体によつて規制
し、ハンマカムとスピンドルカム間に介在するス
チールボールが、前記弾性体を圧縮及び変形させ
ないかぎり外れない構造としたことを特徴とする
インパクトレンチのスチールボール脱落防止構造
。 A well-known cam mechanism includes a hammer cam formed on the hammer, a spindle cam formed on the spindle, and a spring that biases the hammer cam against the spindle cam via a steel ball, and converts the rotational motion of the hammer into reciprocating motion. In an impact wrench, the amount of retraction in the axial direction of the hammer is regulated by a rubber member disposed on the end face of the spindle shaft where the hammer moves, or by an elastic body such as a leaf spring, which is interposed between the hammer cam and the spindle cam. A steel ball fall prevention structure for an impact wrench, characterized in that the steel ball does not come off unless the elastic body is compressed and deformed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989115728U JP2513613Y2 (en) | 1989-09-29 | 1989-09-29 | Impact tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989115728U JP2513613Y2 (en) | 1989-09-29 | 1989-09-29 | Impact tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0355161U true JPH0355161U (en) | 1991-05-28 |
| JP2513613Y2 JP2513613Y2 (en) | 1996-10-09 |
Family
ID=31664046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989115728U Expired - Lifetime JP2513613Y2 (en) | 1989-09-29 | 1989-09-29 | Impact tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2513613Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014069266A (en) * | 2012-09-28 | 2014-04-21 | Hitachi Koki Co Ltd | Rotary impact tool |
| JP2014188612A (en) * | 2013-03-26 | 2014-10-06 | Hitachi Koki Co Ltd | Impact tool |
-
1989
- 1989-09-29 JP JP1989115728U patent/JP2513613Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014069266A (en) * | 2012-09-28 | 2014-04-21 | Hitachi Koki Co Ltd | Rotary impact tool |
| JP2014188612A (en) * | 2013-03-26 | 2014-10-06 | Hitachi Koki Co Ltd | Impact tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2513613Y2 (en) | 1996-10-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |