JP4067464B2

JP4067464B2 - Portable circular saw machine

Info

Publication number: JP4067464B2
Application number: JP2003200167A
Authority: JP
Inventors: 直哉衛藤; 宏佐藤; 琢磨野中; 顕司丹羽
Original assignee: Hitachi Koki Co Ltd
Current assignee: Koki Holdings Co Ltd
Priority date: 1995-10-27
Filing date: 2003-07-23
Publication date: 2008-03-26
Anticipated expiration: 2016-05-10
Also published as: JP2004001546A

Description

【０００１】
【発明の属する技術分野】
本発明はのこ刃とベース側面との平行度を微調整することができる携帯用丸のこ機に関するものである。
【０００２】
【従来の技術】
従来の携帯用丸のこ機の一例を図１３〜図１５に示す。携帯用丸のこ機は図に示すように、電動機により駆動されるのこ刃２と、のこ刃２を覆うソーカバー１と、ソーカバー１に取付けられ、切断量を決定すると共に切断時の基準となるベース３とを有する。
【０００３】
従来の携帯用丸のこ機は、図１４に示すように第１連結部１０、第２連結部１１によってソーカバー１にベース３が取付けられている。第１連結部１０は本体前方に位置し、図１３に示すようにベース３が第１連結部１０を支点として回動可能なようにロールピン１２によってベース３とソーカバー１とを連結している。また、第２連結部１１は本体後方のベース３上に位置し、図１５に示すようにソーカバー１にボルト１３を介して設けられ一定量本体下方に移動可能なリンク４とベース３とをリベット１４によって連結させている。ボルト１３を緩め、第２連結部１１を下方に移動させることによって、ベース３は図１４で示すように第１連結部１０を支点として回動する。この操作をすることで、切断量を調整することができる。
【０００４】
【発明が解決しようとする課題】
上記した従来の携帯用丸のこ機では、ベース側面１５を利用し精度の要求される切断を行う際に重要となるのこ刃２とベース側面１５との平行度は、組立部品の寸法精度によって決定されるため僅かなバラツキがあるといった欠点があった。本発明の目的は、のこ刃とベース側面との平行度の僅かなバラツキを解消することのできる携帯用丸のこ機を提供することである。
【０００５】
【課題を解決するための手段】
上記の目的を達成するために本発明は、電動機により駆動されるのこ刃と、該のこ刃を覆うソーカバーと、ベースと、上記ベースと上記ソーカバーとを連結する連結部とを有し、該連結部は上記ソーカバーに設けられた貫通孔を有するヒンジ部材と、上記ベースに取付けられ、少なくとも２つの穴部を有するヒンジ保持部と、上記貫通孔と上記少なくとも２個の穴部に挿通されるねじ部材とを有し、上記ヒンジ保持部の少なくとも２個の穴部は離間して配置され、該穴部の間に上記ヒンジ部材が位置し、上記ねじ部材を回動することにより、上記ヒンジ部材を上記ねじ部材の軸方向に移動可能とすると共に、前記ヒンジ部材に、前記ねじ部材の軸方向に対して垂直にねじ穴を設け、該ねじ穴に押さえねじを螺合することにより、切断量を調整するときは、上記押さえねじにより前記ねじ部材の回動を固定し、固定されたねじ部材を軸として上記ベースを回動することに一つの特徴を有する。
【０００６】
本発明の他の特徴は、上記ねじ部材の先端部に抜け止め部材を取付けたことにある。
【０００８】
【発明の実施の形態】
本発明携帯用丸のこ機の一実施例を図１〜図４に示す。本発明は図に示すようにソーカバー１に設けられたリンク４とベース３とを連結させる連結部１１の構造を工夫したものであり、この連結部１１以外の構造は図１３〜図１５に示した携帯用丸のこ機と同様の構造である。
【０００９】
ベース３とリンク４とを連結させる連結部１１は、図に示すようにベース３上に設けられた長穴６にリンク４と連結されたピン５が挿入され、図２に示すようにピン５の軸心に対して直角に設けられた２個所のネジ穴７に取付けられる無頭ネジ８によってピン５を長穴６内で固定する構造となっている。
【００１０】
２個の無頭ネジ８を調節することにより、リンク４と連結したピン５は長穴６内でのこ刃２の軸方向に移動し、本体が前記第１連結部１０を支点としてのこ刃２の軸方向に回動するので、のこ刃２とベース側面１５との平行度を変化させることができる。すなわち、任意に２個の無頭ネジ８を調整し、ピン５を長穴６内でのこ刃２の軸方向に移動させることにより、のこ刃２とベース側面１５との平行度を微調整することが可能となる。
【００１１】
図５〜図７に本発明携帯用丸のこ機の他の実施例を示す。本実施例は図５に示すように、ピース１６にリンク４と連結した段付きネジ１７が固定され、ピース１６はベース３上に設けられた長穴６に挿入され、図に示すようにピース１６の軸心に対して直角に設けられた穴１８と、ピース１６に設けられたネジ穴１９とに対してネジ穴付きボルト２０が螺合し、ボルト２０のネジ穴に緩み止めネジ２１が挿入され、リンク４と連結したピース１６は長穴６内で保持される構造となっている。また、ボルト２０は図７に示すように緩み止めネジ２１を締結することにより固定される。なお、リンク４にピース１６を固定させる方法として、図８に示すようにピン２２をボルト２０に下方で圧入する方法や図９に示すようにリベット２３をボルト２０の下方でかしめる方法等が考えられる。
【００１２】
上記のような構成とした携帯用丸のこ機は、ボルト２０を回動させることによってリンク４と連結したピース１６が長穴６内でのこ刃２の軸方向に移動する。この操作をすることによりのこ刃２とベース側面１５との平行度を微調整することが可能となる。上記したようにピース１６を設けた構成とすることによって、上記した図１〜図４に示す実施例よりも確実に長穴６内で固定することができるようになると共に図１〜図４に示す実施例では２個の無頭ネジ８を夫々調節しなければならなかったが本実施例では１個のネジ穴付きボルト２０を調整するだけでよいので操作性が向上するという効果を有することができる。
【００１３】
上記した図１〜図９に示す携帯用丸のこ機の実施例は、第２連結部１１の構造を工夫したものであるが、図１０〜図１２に示す携帯用丸のこ機のように第１連結部１０の構造を工夫したものでも同様の効果を得ることができる。以下図１０〜図１２を用いて本発明携帯用丸のこ機の更に他の実施例を詳細に説明する。なお、第１連結部１０以外の構造は図１３〜図１５に示した従来の携帯用丸のこ機と同様である。図１０に示すようにソーカバー１にはめねじ２５を有するヒンジ２４が設けられており、ベース３にはめねじ２５と同一線上に位置する２個の穴２８を有するヒンジ保持部２６が設けられている。図１１に示すようにヒンジ保持部２６の穴２８を介してヒンジ２４のめねじ２５に挿通される調整ねじ２９によってソーカバー１とベース３とは連結される。調整ねじ２９はヒンジ保持部２６に挿通された後に抜け止め部材３０が取り付けられる。また、図に示すようにヒンジ２４にはめねじ２５の軸方向に対して垂直にねじ穴３２が設けられており、該ねじ穴３２には押えねじ３１が螺合される。
【００１４】
上記した構成とすることによって、ベース３は第１連結部１０を支点として回動することができると共に図１２に示すように調整ネジ２９をＣあるいはＤ方向に回転させるとヒンジ２４をＥあるいはＦ方向に移動させることができる。のこ刃２とベース側面１５との平行度のバラツキは、調整ネジ２９を回転させることで解消することができ、押えねじ３１を締めることにより調整ねじ２９を任意の位置で固定させることができる。
【００１５】
なお、調整ネジ２９は、図１１に示すようにヒンジ保持部２６の穴２８に位置する部分が不完全ねじとなっていることが好ましく、これにより調整ねじ２９を軸としてベース３を回動させる際、すなわち切断量を調整する際に発生する穴２８での磨耗を軽減させることができる。また、ねじ部の損傷を防ぐため、押えねじ３１が突き当てられる位置を不完全ねじとすることが好ましい。更に、調整ねじ２９のねじ部にナイロック加工（商標名）部を設けた構成とすると、押えねじ３１を使用することなく調整ねじ２９を任意の位置に固定させることができるようになる。
【００１６】
【発明の効果】
本発明によれば、電動機により駆動されるのこ刃と、該のこ刃を覆うソーカバーと、ベースと、上記ベースと上記ソーカバーとを連結する連結部とを有し、該連結部は上記ソーカバーに設けられた貫通孔を有するヒンジ部材と、上記ベースに取付けられ、少なくとも２つの穴部を有するヒンジ保持部と、上記貫通孔と上記少なくとも２個の穴部に挿通されるねじ部材とを有し、上記ヒンジ保持部の少なくとも２個の穴部は離間して配置され、該穴部の間に上記ヒンジ部材が位置し、上記ねじ部材を回動することにより、上記ヒンジ部材を上記ねじ部材の軸方向に移動可能としたので、のこ刃とベース側面との平行度の微調整をすることが可能になる。従って、ベース側面を利用した切断を行う際に精度の高い切断を行うことができる携帯用丸のこ機を提供することができる。
【図面の簡単な説明】
【図１】本発明携帯用丸のこ機の一実施例を示す要部斜視図。
【図２】図１のＭ部透視拡大図。
【図３】図２の組立図。
【図４】図１のＭ部上面拡大図。
【図５】本発明携帯用丸のこ機の他の実施例を示す要部組立図。
【図６】図５の組立後を示す上面断面図。
【図７】図６の動作説明図。
【図８】本発明携帯用丸のこ機の他の実施例を示す要部断面図。
【図９】本発明携帯用丸のこ機の他の実施例を示す要部断面図。
【図１０】本発明携帯用丸のこ機の他の実施例を示す要部断面上面図。
【図１１】図１０の要部組立斜視図。
【図１２】図１０の要部拡大斜視図。
【図１３】従来の携帯用丸のこ機の一例を示す上面図。
【図１４】図１３の側面図。
【図１５】図１４の要部組立斜視図。
【符号の説明】
１はソーカバー、２はのこ刃、３はベース、４はリンク、５はピン、６は長穴、７はネジ穴、８は無頭ネジ、１０、１１は連結部１５はベース側面、２４はヒンジ、２５はめねじ、２６はヒンジ保持部、２９は調整ねじである。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a portable circular saw machine capable of finely adjusting the parallelism between a saw blade and a side surface of a base.
[0002]
[Prior art]
An example of a conventional portable circular saw machine is shown in FIGS. As shown in the figure, the portable circular saw machine has a saw blade 2 driven by an electric motor, a saw cover 1 covering the saw blade 2, and a saw cover 1, which is attached to the saw cover 1 to determine a cutting amount and a reference for cutting. And a base 3.
[0003]
In a conventional portable circular saw machine, a base 3 is attached to a saw cover 1 by a first connecting portion 10 and a second connecting portion 11 as shown in FIG. The first connecting portion 10 is located in front of the main body, and the base 3 and the saw cover 1 are connected by the roll pin 12 so that the base 3 can rotate with the first connecting portion 10 as a fulcrum as shown in FIG. Further, the second connecting portion 11 is located on the base 3 at the rear of the main body. As shown in FIG. 15, the link 4 and the base 3 which are provided on the saw cover 1 with bolts 13 and are movable downward by a predetermined amount are riveted. 14 are connected. By loosening the bolt 13 and moving the second connecting portion 11 downward, the base 3 rotates about the first connecting portion 10 as shown in FIG. By performing this operation, the cutting amount can be adjusted.
[0004]
[Problems to be solved by the invention]
In the conventional portable circular saw machine described above, the parallelism between the saw blade 2 and the base side surface 15 which is important when the base side surface 15 is used for cutting that requires high accuracy is the dimensional accuracy of the assembly part. Therefore, there is a drawback that there is a slight variation. An object of the present invention is to provide a portable circular saw machine that can eliminate slight variations in parallelism between a saw blade and a base side surface.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has a saw blade driven by an electric motor, a saw cover that covers the saw blade, a base, and a connecting portion that connects the base and the saw cover. The connecting portion is inserted into the hinge member having a through hole provided in the saw cover, the hinge holding portion attached to the base and having at least two holes, the through hole and the at least two holes. And at least two holes of the hinge holding portion are spaced apart from each other, the hinge member is positioned between the holes, and the screw member is rotated, thereby The hinge member is movable in the axial direction of the screw member, and the hinge member is provided with a screw hole perpendicular to the axial direction of the screw member, and a holding screw is screwed into the screw hole. adjust the amount of cleavage Rutoki, said the set screw to secure the rotation of the threaded member has one feature to rotate the base a fixed threaded member as an axis.
[0006]
Another feature of the present invention resides in that a retaining member is attached to the tip of the screw member.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
One embodiment of the portable circular saw machine of the present invention is shown in FIGS. In the present invention, as shown in the figure, the structure of the connecting portion 11 for connecting the link 4 and the base 3 provided on the saw cover 1 is devised, and the structure other than the connecting portion 11 is shown in FIGS. It has the same structure as a portable circular saw machine.
[0009]
The connecting portion 11 for connecting the base 3 and the link 4 has a pin 5 connected to the link 4 inserted in a long hole 6 provided on the base 3 as shown in the figure, and the pin 5 as shown in FIG. The pin 5 is fixed in the long hole 6 by a headless screw 8 attached to two screw holes 7 provided at right angles to the axial center of the long hole 6.
[0010]
By adjusting the two headless screws 8, the pin 5 connected to the link 4 moves in the axial direction of the saw blade 2 in the elongated hole 6, and the main body uses the first connecting portion 10 as a fulcrum. Since the blade 2 rotates in the axial direction, the parallelism between the saw blade 2 and the base side surface 15 can be changed. That is, by adjusting the two headless screws 8 arbitrarily and moving the pin 5 in the axial direction of the saw blade 2 within the long hole 6, the parallelism between the saw blade 2 and the base side surface 15 is reduced. It becomes possible to adjust.
[0011]
5 to 7 show another embodiment of the portable circular saw machine of the present invention. In this embodiment, as shown in FIG. 5, a stepped screw 17 connected to the link 4 is fixed to the piece 16, and the piece 16 is inserted into a long hole 6 provided on the base 3. 16 and holes 18 provided at right angles to the axis of, and screwing threaded cap screw 20 with respect to the screw hole 19 provided in the piece 16, the screw 21 fastened loosening the screw holes of the bolt 20 is The piece 16 inserted and connected to the link 4 is held in the elongated hole 6. Further, the bolt 20 is fixed by fastening a locking screw 21 as shown in FIG. As a method of fixing the piece 16 to the link 4, there are a method of press-fitting the pin 22 into the bolt 20 as shown in FIG. 8, a method of caulking the rivet 23 under the bolt 20 as shown in FIG. Conceivable.
[0012]
In the portable circular saw machine configured as described above, the piece 16 connected to the link 4 is moved in the axial direction of the saw blade 2 in the long hole 6 by rotating the bolt 20. By performing this operation, the parallelism between the saw blade 2 and the base side surface 15 can be finely adjusted. With the configuration in which the piece 16 is provided as described above, it can be more securely fixed in the elongated hole 6 than in the embodiment shown in FIGS. In the embodiment shown, the two headless screws 8 had to be adjusted, but in this embodiment, only one screw hole bolt 20 needs to be adjusted, so that the operability is improved. Can do.
[0013]
Although the embodiment of the portable circular saw machine shown in FIGS. 1 to 9 described above is a device in which the structure of the second connecting portion 11 is devised, like the portable circular saw machine shown in FIGS. Even if the structure of the first connecting portion 10 is devised, the same effect can be obtained. Hereinafter, still another embodiment of the portable circular saw machine of the present invention will be described in detail with reference to FIGS. The structure other than the first connecting portion 10 is the same as that of the conventional portable circular saw shown in FIGS. As shown in FIG. 10, the saw cover 1 is provided with a hinge 24 having a female screw 25, and the base 3 is provided with a hinge holding portion 26 having two holes 28 located on the same line as the female screw 25. . As shown in FIG. 11, the saw cover 1 and the base 3 are connected to each other by an adjusting screw 29 inserted through the female screw 25 of the hinge 24 through the hole 28 of the hinge holding portion 26. After the adjustment screw 29 is inserted into the hinge holding portion 26, the retaining member 30 is attached. Further, a screw hole 32 is provided perpendicular to the axial direction of the female screw 25 in the hinge 24 as shown in FIG, cap screw 31 into the screw hole 32 is screwed.
[0014]
With the configuration described above, the base 3 can be rotated about the first connecting portion 10 as a fulcrum, and when the adjusting screw 29 is rotated in the C or D direction as shown in FIG. Can be moved in the direction. The variation in parallelism between the saw blade 2 and the base side surface 15 can be eliminated by rotating the adjusting screw 29, and the adjusting screw 29 can be fixed at an arbitrary position by tightening the presser screw 31. .
[0015]
As shown in FIG. 11, the adjustment screw 29 is preferably an incomplete screw at a portion located in the hole 28 of the hinge holding portion 26, thereby rotating the base 3 around the adjustment screw 29. In other words, it is possible to reduce wear at the hole 28 that occurs when the cutting amount is adjusted. In order to prevent damage to the threaded portion, it is preferable that the position where the presser screw 31 is abutted is an incomplete screw. Furthermore, if the screw portion of the adjustment screw 29 is provided with a Nylock (trade name) portion, the adjustment screw 29 can be fixed at an arbitrary position without using the presser screw 31.
[0016]
【The invention's effect】
According to the present invention, there is provided a saw blade driven by an electric motor, a saw cover that covers the saw blade, a base, and a connecting portion that connects the base and the saw cover, the connecting portion being the saw cover. A hinge member having a through hole provided in the base, a hinge holding portion attached to the base and having at least two holes, and a screw member inserted through the through hole and the at least two holes. Then, at least two holes of the hinge holding part are arranged apart from each other, the hinge member is positioned between the holes, and the screw member is rotated, whereby the hinge member is moved to the screw member. Therefore, the parallelism between the saw blade and the side surface of the base can be finely adjusted. Therefore, it is possible to provide a portable circular saw machine that can perform cutting with high accuracy when performing cutting using the side surface of the base.
[Brief description of the drawings]
FIG. 1 is a perspective view of a main part showing an embodiment of a portable circular saw machine of the present invention.
FIG. 2 is a perspective enlarged view of a part M in FIG. 1;
FIG. 3 is an assembly view of FIG. 2;
4 is an enlarged top view of the M part in FIG. 1. FIG.
FIG. 5 is an essential part assembly diagram showing another embodiment of the portable circular saw machine of the present invention.
6 is a top cross-sectional view showing the assembled state of FIG. 5;
7 is an operation explanatory diagram of FIG. 6. FIG.
FIG. 8 is a cross-sectional view of an essential part showing another embodiment of the portable circular saw machine of the present invention.
FIG. 9 is a sectional view of an essential part showing another embodiment of the portable circular saw machine of the present invention.
FIG. 10 is a cross-sectional top view of an essential part showing another embodiment of the portable circular saw machine of the present invention.
11 is a perspective view of the main part assembly of FIG.
12 is an enlarged perspective view of a main part of FIG.
FIG. 13 is a top view showing an example of a conventional portable circular saw machine.
14 is a side view of FIG.
15 is a perspective view of the main part assembly of FIG. 14;
[Explanation of symbols]
1 is a saw cover, 2 is a saw blade, 3 is a base, 4 is a link, 5 is a pin, 6 is a long hole, 7 is a screw hole, 8 is a headless screw, 10 and 11 are connection parts 15 are side surfaces of the base, 24 Is a hinge, 25 is a female screw, 26 is a hinge holding portion, and 29 is an adjusting screw.

Claims

A saw blade driven by an electric motor, a saw cover that covers the saw blade, a base, and a connecting portion that connects the base and the saw cover, the connecting portion being a through hole provided in the saw cover A hinge member that is attached to the base and has at least two holes, and a screw member that is inserted into the through hole and the at least two holes. The at least two holes are spaced apart, the hinge member is positioned between the holes, and the hinge member can be moved in the axial direction of the screw member by rotating the screw member. When the cutting amount is adjusted by providing a screw hole in the hinge member perpendicular to the axial direction of the screw member and screwing a press screw into the screw hole, Above Flip the rotating member is fixed, this machine portable circular which is characterized in that by rotating the base a fixed threaded member as an axis.

2. A portable circular saw machine according to claim 1, wherein a retaining member is attached to the tip of the screw member.