JPS6142740Y2 - - Google Patents
Info
- Publication number
- JPS6142740Y2 JPS6142740Y2 JP17514780U JP17514780U JPS6142740Y2 JP S6142740 Y2 JPS6142740 Y2 JP S6142740Y2 JP 17514780 U JP17514780 U JP 17514780U JP 17514780 U JP17514780 U JP 17514780U JP S6142740 Y2 JPS6142740 Y2 JP S6142740Y2
- Authority
- JP
- Japan
- Prior art keywords
- handle
- ratchet
- cutting blade
- ratchet pawl
- shaft
- 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
Links
- 230000007246 mechanism Effects 0.000 description 6
- 238000002788 crimping Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Shearing Machines (AREA)
- Scissors And Nippers (AREA)
Description
【考案の詳細な説明】
本考案は、ラチエツト式手動工具の改良に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a ratchet type hand tool.
従来、手動切断工具、手動圧着工具等におい
て、より大きな切断力、圧着力をひき出す為に、
ラチエツト機構を用いたものが種々見られた。 Conventionally, in manual cutting tools, manual crimping tools, etc., in order to draw out greater cutting force and crimping force,
Various models using ratchet mechanisms were seen.
しかし、これら各種工具に使用されているラチ
エツト機構の1例を第1図に示す。即ち、図は一
方の把手1の先端部に、切断するパイプの受け部
3′を一体に設け、他方の把手2を前記把手1に
対して接離方向に揺動可能に枢着し、更に前記把
手2の先端部に切断刃4を回動可能に枢着して成
るパイプカツターである。該切断刃4の後端部に
ラチエツト8を刻設するとともに把手2の先端寄
り部にラチエツト爪9の基部を枢着し、該ラチエ
ツト爪9を常時ラチエツト8に向かつて付勢する
ばね14を設けることにより構成される。そし
て、把手2を手動で揺動される毎にラチエツト爪
9がラチエツト8と係合して、切断刃4を受け部
3′に向かつて少しづつ回動させるのである。 However, one example of a ratchet mechanism used in these various tools is shown in FIG. That is, in the figure, a receiving part 3' for the pipe to be cut is integrally provided at the tip of one handle 1, and the other handle 2 is pivotally attached to the handle 1 so as to be able to swing in the direction toward and away from the handle. This pipe cutter has a cutting blade 4 pivotably attached to the tip of the handle 2. A ratchet 8 is carved in the rear end of the cutting blade 4, and the base of a ratchet pawl 9 is pivotally attached to a portion near the tip of the handle 2, and a spring 14 is provided to constantly bias the ratchet pawl 9 toward the ratchet 8. It is constituted by providing. Each time the handle 2 is manually swung, the ratchet pawl 9 engages with the ratchet 8 to rotate the cutting blade 4 little by little toward the receiving portion 3'.
従つて、切断刃4のストロークを大きくとつて
も切断刃4に加わる力を大きくすることができる
こととなる。 Therefore, even if the stroke of the cutting blade 4 is increased, the force applied to the cutting blade 4 can be increased.
しかし、把手2の枢着位置とラチエツト爪9の
枢着位置とは、ラチエツト爪9自体の強度を大き
くしなければならない関係上、余に接近させるこ
とができず、また、把手1,2自体の長さも手動
操作の便宜上、余り長くすることができないの
で、切断刃4に加え得る力には限度があつた。 However, the pivot position of the handle 2 and the pivot position of the ratchet pawl 9 cannot be made very close to each other because the strength of the ratchet pawl 9 itself must be increased. The length of the cutting blade 4 cannot be made too long for convenience of manual operation, so there is a limit to the force that can be applied to the cutting blade 4.
本考案は、切断刃等作動部に加え得る力を著し
く大きくできるラチエツト機構を装設したラチエ
ツト式手動工具に関するものであり、以下実施例
を示す添付図面によつて詳細に説明する。 The present invention relates to a ratchet type manual tool equipped with a ratchet mechanism that can significantly increase the force that can be applied to an operating part such as a cutting blade, and will be described in detail below with reference to the accompanying drawings showing embodiments.
第2図は、ワイヤー、植木の枝等を切断するカ
ツターの側面図、第4図は第2図の−断面図
であり、一方の把手1の先端部に広幅部1′を一
体形成し、該広幅部1′の先端部に軸6,7にて
一方の切断刃3を固着するとともに、軸7にて他
方の切断刃4を回動可能に枢着し、更に前記広幅
部1′の上、後端部に他方の把手2を、軸12に
て揺動可能に枢着し、また、該把手2と前記切断
刃4とを本考案の最も要旨とするラチエツト機構
5にて連結している。 FIG. 2 is a side view of a cutter for cutting wires, tree branches, etc., and FIG. 4 is a sectional view taken from FIG. One of the cutting blades 3 is fixed to the tip of the wide part 1' by shafts 6 and 7, and the other cutting blade 4 is rotatably pivoted by the shaft 7. The other handle 2 is pivotally attached to the upper and rear ends on a shaft 12, and the handle 2 and the cutting blade 4 are connected by a ratchet mechanism 5, which is the main feature of the present invention. ing.
該ラチエツト機構5は、前記切断刃4の後端弧
状面い刻設したラチエツト8と、基部に円形孔1
0を穿設したラチエツト爪9と、該円形孔10に
挿入した円板状の従動軸11とから成り、該カム
11の中心から離間した所定位置に前記軸12を
挿通するとともに、軸12を挿通位置と反対側所
定位置に軸13を挿通し、該軸13の両端部を把
手2に支持させている。 The ratchet mechanism 5 includes a ratchet 8 having an arcuate surface carved at the rear end of the cutting blade 4, and a circular hole 1 at the base.
It consists of a ratchet pawl 9 with a hole drilled at 0, and a disc-shaped driven shaft 11 inserted into the circular hole 10. A shaft 13 is inserted into a predetermined position opposite to the insertion position, and both ends of the shaft 13 are supported by the handle 2.
尚、14は、ラチエツト爪9を、ラチエツト8
に向かつて付勢するばね、15はラチエツト爪9
の回動を規制するピン、16はラチエツト8と係
合可能に把手1に設けたストツパー、17はラチ
エツト爪9の所定位置に凹設したばね14係合用
の凹溝、18は切断刃4をを切断刃3から離間す
る方向に付勢するばねである。 In addition, 14 indicates the ratchet claw 9 and the ratchet 8.
15 is the ratchet pawl 9
16 is a stopper provided on the handle 1 so as to be able to engage with the ratchet 8; 17 is a recessed groove for engaging the spring 14 recessed in a predetermined position of the ratchet pawl 9; 18 is a groove for engaging the cutting blade 4; This is a spring that urges the blade away from the cutting blade 3.
以上の構成になるカツターの作用は次のとおり
である。 The function of the cutter having the above structure is as follows.
第2図に示す状態において、把手2を把手1に
向かつて揺動すれば、該把手2に軸13で連結さ
れた従動軸11も軸12を中心として回動する。
そして、円板状の従動軸11は所定距離把手1に
接近するとともに、切断刃3にも接近する。 In the state shown in FIG. 2, when the handle 2 is swung toward the handle 1, the driven shaft 11 connected to the handle 2 by a shaft 13 also rotates about the shaft 12.
Then, the disk-shaped driven shaft 11 approaches the handle 1 by a predetermined distance and also approaches the cutting blade 3.
従つてラチエツト爪9も、該従動軸11の移動
に追従しようとするのであるが、ラチエツト8と
係合しているので、揺動しながら把手1に向かつ
て移動し、以て切断刃4を所定距離だけ切断刃3
に向かつて回動させることができる。(第3図参
照)
次いで把手2を釈放すれば、ばね14の弾力に
て第2図に示す原位置まで復動し、以下上記操作
を反復することにより、ワイヤー、植木の枝等を
切断することができる。 Therefore, the ratchet pawl 9 also tries to follow the movement of the driven shaft 11, but since it is engaged with the ratchet 8, it moves toward the handle 1 while swinging, thereby causing the cutting blade 4 to move. Cutting blade 3 for a predetermined distance
It can be rotated to face. (See Figure 3) Next, when the handle 2 is released, it moves back to the original position shown in Figure 2 by the elasticity of the spring 14, and by repeating the above operation, wires, branches of plants, etc. can be cut. be able to.
第5図はパイプカツターに応用した実施例を示
し、前記実施例と異なる点は、切断刃3に代えて
上面を所定形状に湾曲させたパイプ受け部3′を
設けた点のみであり、その他の部分の構成及び作
用は前記実施例と同様であるから説明を省略す
る。 FIG. 5 shows an embodiment applied to a pipe cutter, which differs from the previous embodiment only in that a pipe receiving part 3' whose upper surface is curved into a predetermined shape is provided in place of the cutting blade 3, and other features The structure and operation of the parts are the same as those in the previous embodiment, so the explanation will be omitted.
尚、以上の何れの場合においても、把手2を把
手1から大きく離間する方向に揺動させてラチエ
ツト8とラチエツト爪9との係合を外すととも
に、ストツパー16を操作してストツパー16と
ラチエツト8との係合を外せば、切断刃4は、ば
ね18により自動的に復帰する。 In any of the above cases, the handle 2 is swung far away from the handle 1 to disengage the ratchet 8 and the ratchet pawl 9, and the stopper 16 is operated to separate the stopper 16 and the ratchet 8. When the cutting blade 4 is disengaged, the spring 18 automatically returns the cutting blade 4 to its original position.
また、切断刃4に加えられる力は、従動軸11
を用いたことにより著しく強くなり(従来例の約
5割以上の増加)、第1図に示すカツターでは切
断し得なかつた太さのパイプ、植木の枝等も容易
に切断できる。 In addition, the force applied to the cutting blade 4 is
By using the cutter, the cutter is significantly stronger (more than 50% stronger than the conventional cutter), and can easily cut pipes, tree branches, etc. that are too thick to cut with the cutter shown in Fig. 1.
以上は、カツターに応用した実施例についての
み説明したが、本考案の手動工具はカツターのみ
に限定されるものでは全くなく、圧着工具、パン
チング工具等にも応用できることは勿論である。 Although only the embodiments applied to cutters have been described above, the hand tool of the present invention is not limited to cutters at all, and can of course be applied to crimping tools, punching tools, etc.
以上のように、本考案はラチエツト爪を円板状
の従動軸にて駆動するようにしたので作動部に加
える力を著しく大きくし得るという特有の効果を
奏する。 As described above, since the ratchet pawl is driven by a disc-shaped driven shaft, the present invention has the unique effect of significantly increasing the force applied to the actuating portion.
第1図は従来例を示すパイプカツターの側面
図、第2図は本考案の一実施例を示すカツターの
側面図、第3図は同作動状態を示す側面図、第4
図は第2図の−断面図、第5図は本考案の一
実施例を示すパイプカツターの側面図。
1,2……把手、3,4……切断刃、5……ラ
チエツト機構、8……ラチエツト、9……ラチエ
ツト爪、11……従動軸、12,13……軸。
Fig. 1 is a side view of a pipe cutter showing a conventional example, Fig. 2 is a side view of a cutter showing an embodiment of the present invention, Fig. 3 is a side view showing the same operating state, and Fig. 4 is a side view of a pipe cutter showing an embodiment of the present invention.
The figure is a cross-sectional view taken from FIG. 2, and FIG. 5 is a side view of a pipe cutter showing an embodiment of the present invention. 1, 2...handle, 3, 4...cutting blade, 5...ratchet mechanism, 8...ratchet, 9...ratchet pawl, 11...driven shaft, 12, 13...shaft.
Claims (1)
し、該他方の把手を揺動させることによりラチエ
ツト爪をラチエツトと係合させて作動部を受け部
に向かつて回動させるようにした手動工具におい
て、把手とラチエツト爪を連結する軸と、把手同
士を連結する軸を夫々偏心して挿通すると共に、
ラチエツト爪基部の円形孔に挿着される従動軸を
設け、該従動軸を介してラチエツト爪に把手の握
持力を伝達するようにした事を特徴とするラチエ
ツト式手動工具。 The other handle is swingably pivoted to one handle, and by swinging the other handle, the ratchet pawl is engaged with the ratchet and the actuating part is rotated toward the receiving part. In a hand tool, the shaft connecting the handle and the ratchet pawl and the shaft connecting the handles to each other are inserted eccentrically, and
A ratchet-type hand tool, characterized in that a driven shaft is provided which is inserted into a circular hole in the base of the ratchet pawl, and the gripping force of the handle is transmitted to the ratchet pawl via the driven shaft.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17514780U JPS6142740Y2 (en) | 1980-12-05 | 1980-12-05 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17514780U JPS6142740Y2 (en) | 1980-12-05 | 1980-12-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5796728U JPS5796728U (en) | 1982-06-14 |
JPS6142740Y2 true JPS6142740Y2 (en) | 1986-12-04 |
Family
ID=29532841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17514780U Expired JPS6142740Y2 (en) | 1980-12-05 | 1980-12-05 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6142740Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4209530C1 (en) * | 1992-03-24 | 1993-07-08 | Weidmueller Interface Gmbh & Co, 4930 Detmold, De |
-
1980
- 1980-12-05 JP JP17514780U patent/JPS6142740Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5796728U (en) | 1982-06-14 |
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