JPH0131442Y2 - - Google Patents
Info
- Publication number
- JPH0131442Y2 JPH0131442Y2 JP16421184U JP16421184U JPH0131442Y2 JP H0131442 Y2 JPH0131442 Y2 JP H0131442Y2 JP 16421184 U JP16421184 U JP 16421184U JP 16421184 U JP16421184 U JP 16421184U JP H0131442 Y2 JPH0131442 Y2 JP H0131442Y2
- Authority
- JP
- Japan
- Prior art keywords
- core
- recess
- engaging
- handle
- engagement
- 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
- 230000037431 insertion Effects 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 12
- 210000000078 claw Anatomy 0.000 description 12
- 238000005520 cutting process Methods 0.000 description 6
- 239000012779 reinforcing material Substances 0.000 description 5
- 241000345998 Calamus manan Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 235000012950 rattan cane Nutrition 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Sawing (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Description
【考案の詳細な説明】
本考案は、換刃鋸Ａの改良に関し、更に詳述す
れば、中子１の側縁に係合凹所２を凹設し、柄３
の挿入孔４に中子１を挿入し、柄３の表面から挿
入孔４に至る切欠溝５を、係合凹所２に一致して
形成し、切欠溝５の近傍に回転軸６を突設し、回
転軸６に係合板７を回転自在に配設し、係合板７
の先端を切欠溝５に一致させて切欠溝５側に折曲
し、この折曲部分を係合凹所２に係合する係合爪
８としてなる事を特徴とする換刃鋸Ａの取付構造
に係るものである。[Detailed Description of the Invention] The present invention relates to an improvement of the replaceable blade saw A. More specifically, the engaging recess 2 is provided in the side edge of the core 1, and the handle 3 is recessed.
Insert the core 1 into the insertion hole 4, form a notch groove 5 extending from the surface of the handle 3 to the insertion hole 4 to coincide with the engagement recess 2, and protrude the rotating shaft 6 near the notch groove 5. The engagement plate 7 is rotatably disposed on the rotating shaft 6.
Attachment of an interchangeable blade saw A characterized in that the tip thereof is bent toward the notch groove 5 side so as to match the notch groove 5, and this bent portion serves as an engaging pawl 8 that engages with the engaging recess 2. It is related to the structure.
従来、片刃の換刃鋸B′にあつては、中子１′に
係合凹所２′を凹設し、これに合わせて柄３′に螺
入したねじ１０′を螺進させて係合凹所２′に嵌入
し、鋸本体１１′を柄３′に固着していた。この場
合片刃であるためねじ１０′と鋸本体１１′の切断
側（即ち、刃を刻切した側）とが同じ側になり、
切断時に中子１′は第７図中斜線で示すM′部分に
押圧され、ねじ１０′に荷重がかからない。それ
故ねじ１０′が緩んだり、脱落することがなく、
実用上問題がなかつた。しかしながら、鋸本体１
１′が両刃になつたとき、ねじ１０′に直接切断時
の荷重が加わる場合が発生し、ねじ１０′が使用
中に緩んだり、脱落して鋸本体１１′が柄３′から
抜けるなどの事故があり、甚だしくはねじ山が潰
れ、以後の使用に耐え得ないという故障が生じ
た。 Conventionally, in the case of a single-edged interchangeable blade saw B', an engagement recess 2' is formed in the core 1', and a screw 10' inserted into the handle 3' is threaded into the engagement recess 2'. The saw body 11' was fitted into the mating recess 2', and the saw body 11' was fixed to the handle 3'. In this case, since the screw 10' is single-edged, the cutting side of the saw body 11' (i.e., the side where the blade was chopped) is on the same side,
During cutting, the core 1' is pressed against the shaded M' portion in FIG. 7, and no load is applied to the screw 10'. Therefore, the screw 10' will not loosen or fall off.
There were no practical problems. However, the saw body 1
When 1' becomes double-edged, the cutting load may be applied directly to the screw 10', which may cause the screw 10' to loosen or fall off during use, causing the saw body 11' to come off the handle 3'. There was an accident, and the screw threads were crushed, resulting in a failure that made it impossible to withstand further use.
本考案は、かかる従来例の欠点に鑑みてなされ
たもので、その目的とするところは、両刃鋸であ
つても鋸本体の取換を行うことができ、安全に使
用出来る換刃鋸の取付構造を提供するにある。 The present invention was made in view of the drawbacks of the conventional examples, and its purpose is to install a replaceable blade saw that can be used safely by allowing the saw body to be replaced even if it is a double-edged saw. It is there to provide structure.
以下、本考案を図示実施例に従つて詳述する。
板１５の一側縁には江戸目１２を刻設してあり、
他側縁には縦目１３を刻設してあり、首１４の後
端より中子１を突設して鋸本体１１を形成してあ
る。柄３は第１図からわかるように断面小判状の
もので、柄３の前面１６に開口する収納孔４ａが
柄３の中心に突設されている。収納孔４ａには板
材を折曲して断面略Ｕ字状または角筒状に形成さ
れた補強材１７が挿入されており、補強材１７の
間隙は中子１の肉厚とほぼ等しく形成してあり、
この部分が挿入孔４となる。補強材１７が角筒状
の場合、中子１が補強材１７に包持され、強度の
向上がなされるものである。柄３は木製のもの
で、外周面に藤１８を巻着してあり、握りやすく
してある。柄３の前端部において、柄３の頂部３
ａから挿入孔４に連通する通孔１９を突設してあ
り、この通孔１９に回転軸６が挿通されている。
回転軸６は補強材１７の両側縁から突出している
突部６ａを重ね合わせて形成されたもので、突部
６ａの稜部においてプレス加工のだれ６ｂが生ず
る方を外側に、ばり６ｃが生ずる方を内側にして
重ね合わされることになり、その結果、回転軸６
は円柱に近似した形状になる。柄３の頂部３ａに
おいて回転軸６の前後に切欠溝５を形成してあ
る。この切欠溝５は柄３の頂部３ａから挿入孔４
に達する。回転軸６には係合板７の上下に回転を
円滑に行うための座金２０が配設されており、必
要があれば回転軸６にスリーブ（図示せず）を嵌
め込んでもよい。係止板１５の両端は切欠溝５に
合わせて下方に折曲してあり、この折曲部分が係
合爪８である。係合板７の全体形状は逆Ｕ字状で
あり、剛性、弾性を有する鋼にて形成してある。
係合爪８の第１実施例はその先端が平坦になつた
もので、係合爪８が係合凹所２に係合することに
より、係合板７の固定がなされる。係合爪の第２
実施例はその先端が第２図のように中央に中子１
固定凹所９を凹設してあり、中子１固定凹所９か
ら側縁に向けて登り傾斜に形成したものである。
柄３のの前面１６には当金２１を取着してある。 The present invention will be described in detail below with reference to illustrated embodiments.
One side edge of the board 15 is engraved with Edome 12.
A vertical groove 13 is cut on the other side edge, and a saw body 11 is formed by protruding a core 1 from the rear end of a neck 14. As can be seen from FIG. 1, the handle 3 has an oval-shaped cross section, and has a storage hole 4a that opens at the front surface 16 of the handle 3 and projects from the center of the handle 3. A reinforcing material 17 formed by bending a plate material to have a substantially U-shaped cross section or a rectangular cylindrical shape is inserted into the storage hole 4a, and the gap between the reinforcing material 17 is formed to be approximately equal to the wall thickness of the core 1. There is,
This portion becomes the insertion hole 4. When the reinforcing material 17 has a rectangular tube shape, the core 1 is surrounded by the reinforcing material 17, and the strength is improved. The handle 3 is made of wood and has rattan 18 wrapped around its outer circumferential surface to make it easier to grip. At the front end of the handle 3, the top 3 of the handle 3
A through hole 19 is provided projecting from a to communicate with the insertion hole 4, and the rotating shaft 6 is inserted through this through hole 19.
The rotating shaft 6 is formed by overlapping protrusions 6a that protrude from both side edges of the reinforcing material 17, and a burr 6c is formed on the outer side of the ridge of the protrusion 6a where the sag 6b of press work is produced. As a result, the rotation axis 6
has a shape that approximates a cylinder. A notch groove 5 is formed in the top part 3a of the handle 3 before and after the rotating shaft 6. This notch groove 5 extends from the top 3a of the handle 3 to the insertion hole 4.
reach. Washers 20 are disposed on the rotating shaft 6 above and below the engaging plate 7 for smooth rotation, and if necessary, a sleeve (not shown) may be fitted onto the rotating shaft 6. Both ends of the locking plate 15 are bent downward to match the cutout grooves 5, and these bent portions serve as the engagement claws 8. The overall shape of the engagement plate 7 is an inverted U-shape, and is made of rigid and elastic steel.
The first embodiment of the engagement claw 8 has a flat tip, and when the engagement claw 8 engages with the engagement recess 2, the engagement plate 7 is fixed. The second engaging claw
In this embodiment, the tip of the core 1 is located in the center as shown in Figure 2.
The fixing recess 9 is recessed and is formed in an upward slope from the core 1 fixing recess 9 toward the side edge.
A buck 21 is attached to the front surface 16 of the handle 3.
而して、中子１を挿入し、首１４の後端を当金
２１に当接し、切欠溝５と係合凹所２とを一致さ
せる。然る後、係合板７を回動させると係合爪８
が係合凹所２に嵌り込み中子１を押圧して固定す
る。第２実施例の場合にあつては、係合板７を回
動させると係合爪８の傾斜面を中子１の側縁が滑
つて中央の中子固定凹所９に嵌り込み、中子１を
挿入孔４に押圧して固定する。ここで、第１図か
分かるように、係合板７の取付けられる位置は江
戸目１２側であり、使用頻度の少ない縦目１３の
場合に係合板７側に荷重がかかるようになつてい
る。切れ味が低下すると係合板７を回動して係合
爪８を係合凹所２より外し、もしくは第２実施例
にあつては中子固定凹所９を中子１の係合凹所２
より外し、中子１を自由にする。然る後、新しい
鋸本体１１の中子１を挿入孔４に挿入し、前述同
様係合板７を回動して中子１を柄３に固定する。
第５図は回転軸６をねじ６ａとした場合で、ねじ
６ａを柄３に螺入することにより、係合凹所２と
中子固定凹所９との係度力を高めることが出来
る。又、回転軸６から切欠溝５迄の距離L1，L2
を等しくしても良いが、L1＞L2としても良く、
この場合は係合板７が握りの邪魔にならず、しか
も中子１の係合強度がL1＝L2の場合より強くな
るという利点もある。以上の場合は係合爪８を係
合板７の前後２カ所に設けた例を示したが、勿論
これに限られず、一方のみであつてもよいもので
ある。 Then, the core 1 is inserted, the rear end of the neck 14 is brought into contact with the stopper 21, and the cutout groove 5 and the engagement recess 2 are aligned. After that, when the engagement plate 7 is rotated, the engagement claw 8
fits into the engagement recess 2 and presses and fixes the core 1. In the case of the second embodiment, when the engaging plate 7 is rotated, the side edge of the core 1 slides on the inclined surface of the engaging claw 8 and fits into the central core fixing recess 9, and the core 1 into the insertion hole 4 and fix it. Here, as can be seen from FIG. 1, the position where the engagement plate 7 is attached is on the Edome 12 side, and when the vertical stitch 13 is used less frequently, the load is applied to the engagement plate 7 side. When the sharpness deteriorates, the engaging plate 7 is rotated to remove the engaging pawl 8 from the engaging recess 2, or in the second embodiment, the core fixing recess 9 is removed from the engaging recess 2 of the core 1.
Remove it further to free core 1. Thereafter, the core 1 of a new saw body 11 is inserted into the insertion hole 4, and the engaging plate 7 is rotated as described above to fix the core 1 to the handle 3.
FIG. 5 shows a case where the rotating shaft 6 is a screw 6a, and by screwing the screw 6a into the handle 3, the engagement force between the engagement recess 2 and the core fixing recess 9 can be increased. Also, the distance L 1 , L 2 from the rotating shaft 6 to the notch groove 5
may be equal, but it may also be L 1 > L 2 ,
In this case, there is an advantage that the engagement plate 7 does not get in the way of gripping, and the engagement strength of the core 1 is stronger than that in the case where L 1 =L 2 . In the above case, an example has been shown in which the engaging claws 8 are provided at two locations on the front and back of the engaging plate 7, but of course the engagement claws 8 are not limited to this, and may be provided only at one location.
本考案は、叙上のように、鋸刃の中子の側縁に
係合凹所を凹設し、柄の挿入孔に中子を挿入し、
柄の表面から挿入孔に至る切欠溝を、係合凹所に
一致して形成し、切欠溝の近傍に回転軸を突設
し、回転軸に係合板を回転自在に配設し、係合板
の先端を切欠溝に一致させ、切欠溝側に折曲し、
この折曲部分を係合爪としてあるので係合板を回
動させるだけで柄への中子の着脱を容易に行うこ
とが出来かつ、中子の挿入方向と係合板の回動方
向とが相違するため切断作業中の荷重が係合爪に
加わつても係合板が回動されるということがな
く、切断作業中に中子が柄から抜けるということ
がない。さらに係合爪の先端に係合凹所が嵌り込
む中子固定凹所を形成してあるので、係止板を回
動させて係合凹所に中子固定凹所を嵌め込むと鋸
刃はこの部分において前後、左右方向に固定され
ることになつてがたが生じず、より安全な切断作
業が行なえるものであり、鋸刃の切れ味が低下し
て来ると係止板を回動させて、係合凹所から中子
固定凹所を外すと中子は柄から抜くことができ、
新しい鋸本体と取りかえることが出来、経済的で
ある。 As mentioned above, the present invention provides an engaging recess on the side edge of the core of the saw blade, inserts the core into the insertion hole of the handle,
A notched groove extending from the surface of the handle to the insertion hole is formed to match the engagement recess, a rotating shaft is protruded near the notched groove, and an engaging plate is rotatably disposed on the rotating shaft. Align the tip with the notch groove, bend it toward the notch groove,
Since this bent part is used as an engaging pawl, the core can be easily attached to and removed from the handle simply by rotating the engaging plate, and the inserting direction of the core is different from the rotating direction of the engaging plate. Therefore, even if a load is applied to the engaging pawl during the cutting operation, the engaging plate will not be rotated, and the core will not come off from the handle during the cutting operation. Furthermore, a core fixing recess into which the engaging recess fits is formed at the tip of the engaging pawl, so when the locking plate is rotated and the core fixing recess is fitted into the engaging recess, the saw blade The saw blade is fixed in the front and back and left and right directions at this point, so there is no rattling and safer cutting operations can be performed.When the saw blade becomes less sharp, the locking plate can be turned Then, by removing the core fixing recess from the engagement recess, the core can be pulled out from the handle.
It is economical as it can be replaced with a new saw body.
第１図は本考案の一部切欠正面図、第２図ａは
本考案の係合爪の係合状態を示す第１図のＸ−Ｘ
断面図、第２図ｂは第１図のＺ−Ｚ断面図、第３
図は本考案の回転軸のＹ−Ｙ断面図、第４図は本
考案の係合爪部分の斜視図、第５図は本考案の第
３実施例の一部分の断面図、第６図は本考案の係
合爪の係合状態を示す拡大斜視図、第７図は従来
例の一部切欠断面図である。
１は中子、２は係合凹所、３は柄、４は挿入
孔、５は切欠溝、６は回転軸、７は係合板、８は
係合爪、９は中子凹所である。
FIG. 1 is a partially cutaway front view of the present invention, and FIG. 2 a shows the engaged state of the engaging claw of the present invention taken along the line
The cross-sectional view, Figure 2b is the Z-Z cross-sectional view of Figure 1, Figure 3
The figure is a Y-Y sectional view of the rotating shaft of the present invention, FIG. 4 is a perspective view of the engaging claw portion of the present invention, FIG. 5 is a partial sectional view of the third embodiment of the present invention, and FIG. FIG. 7 is an enlarged perspective view showing the engaged state of the engaging claw of the present invention, and a partially cutaway sectional view of the conventional example. 1 is a core, 2 is an engagement recess, 3 is a handle, 4 is an insertion hole, 5 is a notch groove, 6 is a rotating shaft, 7 is an engagement plate, 8 is an engagement claw, and 9 is a core recess. .
Claims (1)
に中子を挿入し、柄の表面から挿入孔に至る切
欠溝を、係合凹所に一致して形成し、切欠溝の
近傍に回転軸を突設し、回転軸に係合板を回転
自在に配設し、係合板の先端を切欠溝に一致さ
せて切欠溝側に折曲し、この折曲部分を係合凹
所に係合する係合爪として成る事を特徴とする
換刃鋸の取付構造。 (2) 係合爪の先端に係合凹所が嵌り込む中子固定
凹所を形成して成る事を特徴とする実用新案登
録請求の範囲第１項に記載の換刃鋸の取付構
造。[Scope of claim for utility model registration] (1) An engaging recess is formed in the side edge of the core, the core is inserted into the insertion hole of the handle, and the notch groove from the surface of the handle to the insertion hole is A rotary shaft is formed to match the matching recess, a rotating shaft is protruded near the notched groove, an engaging plate is rotatably arranged on the rotating shaft, and the tip of the engaging plate is aligned with the notched groove to face the notched groove side. A mounting structure for an interchangeable blade saw, characterized in that it is bent and the bent portion serves as an engagement pawl that engages with an engagement recess. (2) The mounting structure for an interchangeable blade saw as set forth in claim 1 of the utility model registration claim, characterized in that a core fixing recess into which the engaging recess fits is formed at the tip of the engaging pawl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16421184U JPH0131442Y2 (en) | 1984-10-29 | 1984-10-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16421184U JPH0131442Y2 (en) | 1984-10-29 | 1984-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6178602U JPS6178602U (en) | 1986-05-26 |
| JPH0131442Y2 true JPH0131442Y2 (en) | 1989-09-27 |
Family
ID=30722076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16421184U Expired JPH0131442Y2 (en) | 1984-10-29 | 1984-10-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0131442Y2 (en) |
-
1984
- 1984-10-29 JP JP16421184U patent/JPH0131442Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6178602U (en) | 1986-05-26 |
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