JPH0441201A - Inversion preventive device for sawing board in lumbering - Google Patents
Inversion preventive device for sawing board in lumberingInfo
- Publication number
- JPH0441201A JPH0441201A JP14740590A JP14740590A JPH0441201A JP H0441201 A JPH0441201 A JP H0441201A JP 14740590 A JP14740590 A JP 14740590A JP 14740590 A JP14740590 A JP 14740590A JP H0441201 A JPH0441201 A JP H0441201A
- Authority
- JP
- Japan
- Prior art keywords
- cut
- board
- arm
- sawing
- wood
- 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.)
- Pending
Links
- 230000003449 preventive effect Effects 0.000 title description 2
- 239000002023 wood Substances 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 2
- 101100008044 Caenorhabditis elegans cut-1 gene Proteins 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Landscapes
- Manufacture Of Wood Veneers (AREA)
Abstract
Description
【発明の詳細な説明】
(従来の技術)
原木の丸太を鋸で製材して所要の角材又は板材を生産す
る場合、原木の所要部分を製材した残りの残材部分であ
る挽き板(原木の余剰部分)は、次の処理工程に進むた
めに、ローラコンベヤ等の搬送装置により搬送されて所
定の場所に移動する。DETAILED DESCRIPTION OF THE INVENTION (Prior Art) When sawing logs of raw wood with a saw to produce the required square timbers or boards, sawn boards (sawn boards, which are the remaining material after sawing the required part of the raw wood) The surplus portion) is transported to a predetermined location by a transport device such as a roller conveyor in order to proceed to the next processing step.
従来型の製材装置による製材工程では、挽き板は鋸で原
木から切り離されると、必ず第4図のように反転して切
断面を上に原木の凹凸のある樹皮面を下にして、ローラ
コンベヤ等の搬送装置の搬送支持面に載る。凹凸のある
外側がローラコンベヤのローラ面又はベルトコンベヤの
ベルト面に接触した不安定な状態にあるために、挽き板
は製材装置或いは周りの構造物に搬送中衝突して挽き板
自身コンベーヤから落下したり、或いは凹凸が送りロー
ラに引っかかりコンベヤを停止させたりして、しばしば
コンベヤの運転、従って製材装置の運転を中断せざるを
得なかった。In the sawing process using conventional sawmilling equipment, once the sawn board is cut from the log with a saw, it must be turned over and placed on a roller conveyor with the cut surface facing up and the rough bark side of the log facing down, as shown in Figure 4. It rests on the transport support surface of a transport device such as. Because the uneven outside surface is in an unstable state in contact with the roller surface of the roller conveyor or the belt surface of the belt conveyor, the sawing board collides with the sawmill or surrounding structures during transportation and falls off the conveyor. Otherwise, the irregularities could catch on the feed rollers and cause the conveyor to stop, often necessitating the interruption of the operation of the conveyor and therefore of the sawmill.
(発明が解決しようとする課題)
本発明の目的は、上記の挽き板の反転による製材作業の
中断を防止するために、挽き板を原木から切り離した時
に、挽き板の切断面がコンベヤの搬送支持面と対面し、
原木の凹凸のある樹皮面が必ず上方に向いているように
、挽き板を横転させる挽き板の反転防止装置を提供する
ことである。(Problems to be Solved by the Invention) An object of the present invention is to prevent the sawing board from being interrupted due to the reversal of the sawing board as described above. facing the supporting surface,
To provide an inversion prevention device for a sawing board that overturns the sawing board so that the uneven bark surface of the raw wood always faces upward.
(課題を解決するための手段)
本発明の上記目的を達成するために、本発明に係る装置
は、次の特徴の構成を有している。即ち、製材機の鋸の
後方の位置で鋸の面に平行に配置された押さえ板と、製
材機に上下移動可能に支持されていて製材機から押さえ
板に向かって水平にかつ押さえ板より高い位置に延在す
る取り付けアームと、取り付けアームに沿って移動自在
に取り付けアームにより支持されている調節棒と、一端
が押さえ板に結合し、他端が調節棒の製材機側端部で回
動自在に軸支されるアームと、軸支されたアームを調節
棒の方向に回動するアーム回動手段と、アーム回動手段
により回動されるアームが調節棒から所定角度以内に回
動するのを阻止するスト・ソバ−手段とを備えていて、
取り付けアームと調節棒とを調節して鋸により被切断木
材から切断された挽き板に対して押さえ板を所定の位置
に位置決めする、と言う特徴である。(Means for Solving the Problems) In order to achieve the above object of the present invention, a device according to the present invention has a configuration with the following characteristics. In other words, there is a holding plate placed parallel to the surface of the saw at a position behind the saw of the sawmill, and a presser plate that is supported by the sawmill so as to be able to move up and down and extends horizontally from the sawmill towards the holding plate and higher than the holding plate. a mounting arm extending to a position; an adjusting rod supported by the mounting arm so as to be movable along the mounting arm; one end connected to the holding plate, and the other end rotating at the sawmill side end of the adjusting rod. An arm that is freely pivoted, an arm rotation means that rotates the pivoted arm in the direction of the adjustment rod, and an arm that is rotated by the arm rotation means that rotates within a predetermined angle from the adjustment rod. and preventive measures to prevent
The feature is that the holding plate is positioned at a predetermined position relative to the sawn board cut from the wood to be cut by the saw by adjusting the mounting arm and the adjustment rod.
(作 用)
挽き板が被切断木材から切断された時、押さえ板で挽き
板の外側面の上部を押圧することにより、被切断木材か
ら切断された製品材木の切断面に挽き板の上部縁部を当
接させ、滑らせながら横転させて挽き板の切断面を下に
向ける。押さえ板は、上下移動自在の取り付けアームと
水平方向移動自在の調節棒により調節されて挽番板に対
し所定の間隔、即ち挽き板の最も大きい厚さに等しく又
はそれより僅かに大きい間隔の位置に位置決めされ、そ
れにより製材作業に支障を来すことなく確実に挽き板を
所定の方向に横転させる。(Function) When the sawing board is cut from the wood to be cut, by pressing the upper part of the outer surface of the sawing board with the presser plate, the upper edge of the sawing board is pressed against the cut surface of the product lumber cut from the wood to be cut. Place the two sides of the sawing board in contact with each other, and turn it over while sliding so that the cut surface of the sawing board faces down. The holding plate is adjusted by a vertically movable mounting arm and a horizontally movable adjustment rod to a position with respect to the sawing board at a predetermined distance, that is, at a distance equal to or slightly larger than the maximum thickness of the sawing board. This ensures that the sawing board is turned over in a predetermined direction without interfering with the sawing operation.
(実施例)
以下に、実施例に基づき、添付図面を参照して、より詳
細に本発明を説明する。(Example) Hereinafter, the present invention will be described in more detail based on Examples and with reference to the accompanying drawings.
第1図は、本発明に係る製材における挽き板の反転防止
装置10を図解的に示す。第2′図は、本発明に係る装
置10と被切断木材12と製材機14との配置関係を示
す。鋸、例えば帯鋸16を有して材木、特に原木を製材
する製材機14において、被切断木材12は、帯鋸16
の前方に位置している材木台18の上に載置される。第
1図では、被切断木材12は、左側下部に位置している
が、左右は特に関係はない。材木台18は、帯鋸16の
帯面に平行に位置し、第2図に示すように駆動装置(図
示してない)により駆動されて製材機の帯鋸16の前後
に必要長さだけ直進する。製材操作においては、被切断
木材12の幹の太い方の端部側を手前にして材木台18
に載せ(第2図で破線の位置で)、材木台18の駆動装
置(図示してない)を駆動して材木台18を帯鋸16に
向かって(第2図の矢印の方向に向かって)前進させ帯
鋸16の歯で切断する。被切断木材12から切断されて
生じる挽き板20は、帯鋸16を挟んで被切断木材12
と対向し、被切断木材12より製材機14に近い位置に
ある。次いで、挽き板20は、傾斜板21の上を滑り挽
き板搬送装置の搬送支持面22の上に載り、挽き板搬送
装置により次の処理を行う場所に搬送される。傾斜板2
1は、長方形の板体からなり、帯鋸16の据置から搬送
支持面22に向かって下方に傾斜して設けである。挽き
板の搬送装置の搬送支持面22は、帯鋸16の後方に移
動した材木台18の製材機側に隣接した多少低い位置で
材木台18に平行に伸びている。挽き板の搬送装置には
、例えばローラコンベヤが一般的である。この搬送支持
面22は、例えばローラコンベヤではローラ面により構
成されている。FIG. 1 schematically shows a sawing board inversion prevention device 10 for sawing lumber according to the present invention. FIG. 2' shows the arrangement of the device 10, the wood to be cut 12 and the sawmill 14 according to the invention. In a sawmill 14 that uses a saw, for example, a band saw 16, to saw lumber, especially raw wood, the wood 12 to be cut is cut by the band saw 16.
It is placed on a lumber stand 18 located in front of. In FIG. 1, the wood 12 to be cut is located at the lower left side, but there is no particular relationship between left and right. The lumber table 18 is located parallel to the band surface of the band saw 16, and is driven by a drive device (not shown) as shown in FIG. 2 to move straight ahead and behind the band saw 16 of the sawmill by a required length. In the sawing operation, the timber stand 18 is placed with the thicker end of the trunk of the timber 12 to be cut facing you.
(at the position indicated by the broken line in FIG. 2), and drives the driving device (not shown) for the lumber table 18 to move the lumber table 18 toward the band saw 16 (in the direction of the arrow in FIG. 2). It is moved forward and cut with the teeth of the band saw 16. The sawn board 20 that is produced by cutting the wood 12 to be cut is placed between the wood 12 to be cut and the band saw 16.
, and is located closer to the sawmill 14 than the wood 12 to be cut. Next, the sawing board 20 slides on the inclined plate 21 and is placed on the transport support surface 22 of the sawing board transport device, and is transported by the sawing board transport device to a place where the next processing is performed. Inclined plate 2
Reference numeral 1 is a rectangular plate body, which is inclined downward toward the conveyance support surface 22 from where the band saw 16 is placed. The transport support surface 22 of the sawn board transport device extends parallel to the lumber stand 18 at a somewhat lower position adjacent to the sawmill side of the lumber stand 18 that has been moved to the rear of the band saw 16. For example, a roller conveyor is a common conveying device for sawing boards. This conveyance support surface 22 is constituted by a roller surface in a roller conveyor, for example.
帯鋸16の少し後方、好適には帯鋸16から10乃至2
0cm離れた所に、押さえ板24が配置されている。Slightly behind the band saw 16, preferably 10 to 2 from the band saw 16
A pressing plate 24 is placed 0 cm away.
押さえ板24の機能は、挽き板20が被切断木材12か
ら切断されて離れた時、即ち被切断木材12の太い方の
端部が帯鋸16により切断された時、挽き板20の上部
縁が被切断木材12の切断面を滑動し挽き板20の切断
面を下にして転勤し、切断面が搬送装置の搬送支持面2
2に対面して搬送支持面22に載るように、押さえ板2
4が挽き板20の太い方の端部側の上部外側面を押さえ
ることである。即ち、押さえ板24は、挽き板20が切
断面を上に反転した状態で搬送装置の搬送支持面22に
載ることを防止するために設けである。押さえ板24は
、好適には大きな半径の球面からその一部を長方形に裁
断した形状の湾曲板体、又は長方形の周縁部を製材機側
に向は湾曲させる、即ちアールを設けた形状の板体にす
る。球面の場合、その球面の中心は製材機側にあって、
押さえ板24の中央での接線が帯鋸面16、即ち切断面
に平行でかつその接線と帯鋸16との間隔が丁度挽き板
26の太い方の端部の厚さに等しいか僅かに大きいよう
に配置されている。押さえ板24を球面形状にすること
により又は周縁部にアールを設けることにより、挽き板
26の外側面の枝瘤等の凹凸が押さえ板24に衝突して
押さえ板24を動かす影響を最小限にしている。押さえ
板24は、後述の押さえ板支持機構により押さえ板24
と帯鋸16との上記位置関係に位置決めされ、その位置
関係が維持される。この位置関係が維持されることによ
り、切断が進行して第2図矢印の方向に移動する被切断
木材12に対して、押さえ板24はその移動を妨害する
ことなくその機能を達成することができる。The function of the holding plate 24 is that when the sawing board 20 is separated from the wood 12 to be cut, that is, when the thicker end of the wood 12 to be cut is cut by the bandsaw 16, the upper edge of the sawing board 20 is The cut surface of the wood 12 to be cut is slid and transferred with the cut surface of the sawing board 20 facing down, and the cut surface is placed on the transport support surface 2 of the transport device.
2 so that it rests on the conveyance support surface 22 facing the
4 is to press the upper outer surface of the thicker end of the sawing board 20. That is, the holding plate 24 is provided to prevent the sawing plate 20 from resting on the conveyance support surface 22 of the conveyance device with the cut surface facing upward. The holding plate 24 is preferably a curved plate having a shape obtained by cutting a part of a spherical surface with a large radius into a rectangular shape, or a plate having a shape in which the peripheral edge of the rectangle is curved toward the sawmilling machine side, that is, a curved plate is provided. Make it into your body. In the case of a spherical surface, the center of the spherical surface is on the sawmill side,
The tangent at the center of the holding plate 24 is parallel to the band saw surface 16, that is, the cutting surface, and the distance between the tangent and the band saw 16 is exactly equal to or slightly larger than the thickness of the thick end of the sawing plate 26. It is located. By forming the holding plate 24 into a spherical shape or by providing a radius on the peripheral edge, the influence of unevenness such as twigs on the outer surface of the sawing plate 26 colliding with the holding plate 24 and moving the holding plate 24 is minimized. ing. The presser plate 24 is supported by a presser plate support mechanism to be described later.
and the band saw 16, and this positional relationship is maintained. By maintaining this positional relationship, the holding plate 24 can achieve its function without interfering with the movement of the wood 12 to be cut, which moves in the direction of the arrow in FIG. 2 as cutting progresses. can.
押さえ板支持機構は、押さえ板24からほぼその曲率中
心に向かって延びるアーム26と、アーム26の他方の
端部でアーム26を回動自在に軸支し、かつアーム26
を含む垂直面内で水平方向に延在し更に水平方向に移動
可能な調節棒28と、その調節棒28をベース36を介
して上下自在に製材機に連結する取り付けアーム30と
、アーム26を駆動して調節棒28に向かって回動させ
るアーム回動手段32と、そのアーム26の回動を制限
するストッパー34から構成されている。周縁部にアー
ルを設けた長方形の板体の場合も、その押さえ板支持機
構は、同じである。The holding plate support mechanism includes an arm 26 extending from the holding plate 24 toward the center of curvature thereof, and the arm 26 rotatably supported at the other end of the arm 26.
an adjustment rod 28 that extends horizontally within a vertical plane including the 3D and is movable in the horizontal direction; a mounting arm 30 that connects the adjustment rod 28 to a sawmill vertically via a base 36; It is comprised of an arm rotation means 32 that is driven and rotated toward the adjustment rod 28, and a stopper 34 that limits rotation of the arm 26. Even in the case of a rectangular plate with a rounded peripheral edge, the holding plate support mechanism is the same.
調節棒28をベース36を介して上下自在に製材機に連
結するための、従って押さえ板24を含む本発明に係る
装置10を製材機14に連結する取り付けアーム30が
、製材機14により上下移動可能に保持され、押さえ板
24に向かって水平方向にかつそれより高い位置で延在
している。取り付けアーム30は、ベース36をボルト
38によるネジ結合により保持している。ベース36は
、その両端部において下方に垂下する支持部33と35
を有している。ベース36の製材機側端部の支持部35
には取り付けアーム30の長手方向軸に平行な貫通孔が
設けてあり、かつ支持部35と対向する端部にはその周
面にネジ溝が刻設された同じく取り付けアーム30の長
手方向軸に平行な貫通孔が設けである。The mounting arm 30 for vertically connecting the adjusting rod 28 to the sawmill via the base 36 and thus for connecting the device 10 according to the invention, including the holding plate 24, to the sawmill 14 can be moved up and down by the sawmill 14. It extends horizontally towards the holding plate 24 and at a higher position. The mounting arm 30 holds the base 36 by threaded connection with bolts 38. The base 36 has support portions 33 and 35 hanging downward at both ends thereof.
have. Support part 35 at the end of the base 36 on the sawmill side
is provided with a through hole parallel to the longitudinal axis of the mounting arm 30, and a threaded groove is carved on the peripheral surface of the end facing the support part 35. Parallel through holes are provided.
調節棒28は、支持部33の貫通孔のネジ溝に噛合する
ネジ山が一端に設けてあり、他端で支持部35の貫通孔
に摺動自在に嵌合する棒体からなり、ベース36の支持
部33と35を貫通して挿入されている。The adjustment rod 28 is a rod body having one end provided with a screw thread that engages with a threaded groove in the through hole of the support section 33 and a rod body that slidably fits into the through hole of the support section 35 at the other end. It is inserted through the support parts 33 and 35 of.
調節棒28のネジ山部側の先端に小さなハンドル40が
設けてあってそのハンドル40を時計方向に回すと調節
棒28は製材機に向かって前進し、反時計方向に回すと
調節棒28は製材機から離れる方向に後退する。A small handle 40 is provided at the tip of the threaded part of the adjustment rod 28. When the handle 40 is turned clockwise, the adjustment rod 28 moves forward toward the sawmill, and when turned counterclockwise, the adjustment rod 28 moves forward. Back up away from the sawmill.
押さえ板24を保持するアーム26は、その一端が押さ
え板24の製材機を向く側の面に固定され、その他端が
調節棒28の製材機側端部の軸支部42で軸支されてい
る棒体で形成されている。アーム26は、軸支部42を
中心にして調節棒28の長手方向軸を含む垂直面上をア
ーム回動手段32により回動することができる。アーム
26の回動により、押さえ板24は挽き板20に接近す
ることができる。軸支部42は、アーム26の軸支側端
部に設けられた孔を貫通するピン44とそのピンをその
両端部で支持するために調節棒28から下方に垂下する
2本の脚部46から構成されている。The arm 26 that holds the presser plate 24 has one end fixed to the surface of the presser plate 24 facing the sawmill machine, and the other end supported by a shaft support 42 at the end of the adjustment rod 28 facing the sawmill machine. It is formed of a rod. The arm 26 can be rotated about the pivot support 42 on a vertical plane that includes the longitudinal axis of the adjustment rod 28 by means of arm rotation means 32 . By rotating the arm 26, the holding plate 24 can approach the sawing plate 20. The pivot support 42 consists of a pin 44 that passes through a hole provided at the pivot end of the arm 26 and two legs 46 that hang down from the adjustment rod 28 to support the pin at both ends. It is configured.
実施例では、アーム回動手段32は、コイルバネの形状
の引っ張りバネ32から構成されている。アーム26の
ほぼ中央部に引っ張りバネ32の一端が取り付けてあり
、引っ張りバネ32の他端は調節棒28に設けたフック
48に固定されている。この引っ張りバネ32のバネ力
により引っ張られて、アーム26はピン44を中心に調
節棒28の方向に回動する。In the embodiment, the arm pivoting means 32 comprises a tension spring 32 in the form of a coil spring. One end of a tension spring 32 is attached to approximately the center of the arm 26, and the other end of the tension spring 32 is fixed to a hook 48 provided on the adjustment rod 28. The arm 26 is pulled by the spring force of the tension spring 32 and rotates about the pin 44 in the direction of the adjustment rod 28 .
フック48と脚部46との間の調節棒28の部分にスト
ッパー34がアーム26の回動を所定位置で止めるため
に設けである。ストッパー34は、はぼ2等辺三角形状
に組合せた2本の棒体から構成されている。その2本の
棒体の結合部に設けられた突起部がアーム26の止め部
50として機能し、2本の棒体のそれぞれの他端は調節
棒28に固定される。アーム26は引っ張りバネ32に
より調節棒28に向かって回動し、それに連動して押さ
え板24が挽き板20に向かって接近する。ストッパー
34の止め部50がアーム26に当接することによりア
ーム26の回動が阻止され、押さえ板24が上述の位置
で静止する。A stopper 34 is provided at a portion of the adjustment rod 28 between the hook 48 and the leg portion 46 to stop the rotation of the arm 26 at a predetermined position. The stopper 34 is composed of two rods combined in an isosceles triangular shape. A protrusion provided at the joint of the two rods functions as a stop 50 of the arm 26, and the other end of each of the two rods is fixed to the adjustment rod 28. The arm 26 is rotated toward the adjustment rod 28 by a tension spring 32, and in conjunction therewith, the pressing plate 24 approaches the sawing plate 20. When the stop portion 50 of the stopper 34 comes into contact with the arm 26, rotation of the arm 26 is prevented, and the presser plate 24 remains stationary at the above-mentioned position.
尚、アーム26を調節棒28に向かって回動させる手段
として、この実施例では引っ張りバネを使用したが、こ
れは圧縮バネでも又空気圧或いは油圧等の流体圧装置で
あってもよい。Although a tension spring is used in this embodiment as a means for rotating the arm 26 toward the adjustment rod 28, this may be a compression spring or a fluid pressure device such as pneumatic or hydraulic pressure.
次に、本発明に係る挽き板の反転防止装置の操作につい
て説明する。先ず、帯鋸16に対し所定の位置で被切断
木材12を材木台18に載せる。次いで、被切断木材1
2の直径に合わせて取り付けアーム30を上下し、次に
ハンドル40を時計方向又は反時計方向に回転して調節
棒28を被切断木材12に向かって前進又は後退させ、
押さえ板24が丁度挽き板20に対し前述の所定位置に
押さえ板24を位置づける。Next, the operation of the sawing board reversal prevention device according to the present invention will be explained. First, the wood 12 to be cut is placed on the lumber stand 18 at a predetermined position relative to the band saw 16. Next, the wood to be cut 1
2, and then rotate the handle 40 clockwise or counterclockwise to move the adjustment rod 28 forward or backward toward the wood 12 to be cut.
The presser plate 24 is positioned exactly at the predetermined position described above with respect to the sawing plate 20.
即ち、押さえ板24は、帯鋸16の帯面に対し挽き板2
0の太い方の端部の厚さと同じか僅かに大きい間隔で帯
鋸16の後方に位置している。この状態で帯鋸16を始
動し、被切断木材12を載せた材木台18を第2図の矢
印の方向に前進させ、被切断木材J2を切断する。切断
中、製材機側に向かって押さえ板24より突出している
枝瘤等の凸部が押さえ板24に衝突すると、引っ張りバ
ネ32の引っ張り力に抗して押さえ板24を製材機側に
押圧して移動させて、凸部が押さえ板24を通り過ぎる
。凸部が通過すると再び押さえ板24は引っ張りバネ3
2により引っ張られストッパー50により所定位置に位
置決めされる。切断された時、挽き板20は押さえ板2
4に押されて挽き板20の上部縁が切断面を滑って挽き
板20の切断面が下方を向くように転勤して傾斜板21
を経由し搬送装置の搬送支持面22に載る。That is, the pressing plate 24 is placed in a position where the sawing plate 2
They are located at the rear of the band saw 16 at an interval that is the same as or slightly larger than the thickness of the thick end of the band saw. In this state, the bandsaw 16 is started, the lumber table 18 carrying the wood 12 to be cut is moved forward in the direction of the arrow in FIG. 2, and the wood J2 to be cut is cut. During cutting, if a convex part such as a twig protruding from the presser plate 24 toward the sawmill machine collides with the presser plate 24, the presser plate 24 is pressed toward the sawmill machine against the tensile force of the tension spring 32. and move the convex portion past the presser plate 24. When the convex part passes, the holding plate 24 is again pressed against the tension spring 3.
2 and is positioned at a predetermined position by a stopper 50. When cut, the sawing board 20 is the presser board 2
4, the upper edge of the sawing board 20 slides on the cutting surface, and the cutting surface of the sawing board 20 is turned downward so that the inclined board 21
and then rests on the conveyance support surface 22 of the conveyance device.
好適には、第3図に示すように押さえ板24を上部押さ
え板52と下部押さえ板54とからなる上下2枚の構成
にする。上部押さえ板52と下部押さえ板54とはほぼ
同じ寸法の板体であって、上部押さえ板52の下部縁部
と下部押さえ板54の上部縁部とは回動自在にヒンジ結
合されている。更に、一端が上部押さえ板52のアーム
26との固定面に他端が下部押さえ板54に取り付けら
れた捩じりバネにより、下部押さえ板54は常に上部押
さえ板52の挽き板20と対向する面に向かって回動す
る。従って、挽き板20の幅が狭い場合、即ち挽き板2
0の材木台18から高さが低い場合でも、上部押さえ板
52を挽き板20の方に接近させると、第2図に破線で
示すように下部押さえ板54が挽き板20を押さえて挽
き板20の反転を防止する。挽き板20の幅が大きい場
合には、第2図で実線でしめすように上部押さえ板52
が挽き板20を押さえる機能を果たすので、取り付けア
ーム30を上下させることもなく、挽き板20の幅の大
小にかかわらず押さえ板の効果を発揮させ反転を防止す
る。Preferably, as shown in FIG. 3, the presser plate 24 is configured with two upper and lower plates, an upper and lower presser plate 52 and a lower presser plate 54, respectively. The upper presser plate 52 and the lower presser plate 54 are plates having approximately the same dimensions, and the lower edge of the upper presser plate 52 and the upper edge of the lower presser plate 54 are rotatably hinged. Furthermore, the lower presser plate 54 always faces the grinding plate 20 of the upper presser plate 52 due to a torsion spring whose one end is attached to the surface of the upper presser plate 52 fixed to the arm 26 and the other end is attached to the lower presser plate 54. Rotate toward the surface. Therefore, if the width of the sawing board 20 is narrow, that is, the sawing board 2
Even if the height is low from the sawing board 18, when the upper holding plate 52 approaches the sawing board 20, the lower holding plate 54 presses the sawing board 20 as shown by the broken line in FIG. 20 is prevented from reversing. When the width of the sawing plate 20 is large, the upper holding plate 52 is
Since it functions to press down the sawing board 20, the effect of the holding board is exhibited regardless of the width of the sawing board 20, and the reversal is prevented without raising or lowering the mounting arm 30.
(効果)
本発明に係る装置は、本発明の目的即ち製材における挽
き板の反転防止を簡単な構造で実現することができ、か
つ可動する部分がないので故障が少ない。本装置により
、挽き板の搬出を支障なく実行することができるので、
製材作業の効率を向上させる効果がある。(Effects) The device according to the present invention can achieve the object of the present invention, that is, prevent the sawing board from reversing during sawing, with a simple structure, and is less likely to malfunction because there are no movable parts. With this device, it is possible to carry out the sawing board without any problems, so
It has the effect of improving the efficiency of lumber work.
第1図は、本発明に係る製材における挽き板の反転防止
装置の図解的正面図;
第2図は、本発明に係る製材における挽き板の反転防止
装置の図解的平面配置図;
第3図は、本発明に係る製材における挽き板の反転防止
装置の押さえ板の別の実施例を示す;第4図は、本発明
に係る製材における挽き板の反転防止装置を使用しない
場合に生じる挽き板の反転した状態を示す。
10・・・挽き板の反転防止装置
12・・・被切断木材
14・・・製材機
16・・・帯鋸
18・・・材木台
20・・・挽き板
21・・・傾斜板
22・・・搬送支持面
24・・・押さえ板
26・・・アーム
28・・・調節棒
30・・・取り付けアーム
32・・・引っ張りバネ
33.35・・・支持部
34・・・ストッパー
36・・・ベース
38・・・ボルト
40・・・ハンドル
42・・・軸支部
44・・・ビン
46・・・脚部
48・・・フック
50・・・止め部
52・・・上部押さえ板
54・・・下部押さえ板
第3図
第4図FIG. 1 is a schematic front view of a sawing board inversion prevention device for sawing lumber according to the present invention; FIG. 2 is a schematic plan layout view of the sawing board inversion prevention device for sawing lumber according to the present invention; Fig. 4 shows another embodiment of the holding plate of the sawing board reversal prevention device for sawing lumber according to the present invention; This shows the inverted state. 10... Reversal prevention device for sawn board 12... Wood to be cut 14... Sawmill 16... Band saw 18... Lumber stand 20... Sawing board 21... Inclined board 22... Conveyance support surface 24...Press plate 26...Arm 28...Adjustment rod 30...Attachment arm 32...Tension spring 33.35...Support part 34...Stopper 36...Base 38...Bolt 40...Handle 42...Axle support 44...Bin 46...Legs 48...Hook 50...Stopping part 52...Upper holding plate 54...Lower Holding plate Fig. 3 Fig. 4
Claims (1)
押さえ板と、前記製材機に上下移動可能に支持されてい
て前記製材機から前記押さえ板に向かって水平にかつ前
記押さえ板より高い位置に延在する取り付けアームと、
取り付けアームに沿って移動自在に前記取り付けアーム
により支持されている調節棒と、一端が前記押さえ板に
結合し、他端が前記調節棒の製材機側端部で回動自在に
軸支されるアームと、前記軸支されたアームを前記調節
棒の方向に回動するアーム回動手段と、前記アーム回動
手段により回動されるアームが前記調節棒から所定角度
以内に回動するのを阻止するストッパー手段とを備え、
前記取り付けアームと前記調節棒の位置を調節して前記
鋸により被切断木材から切断された挽き板に対し前記押
さえ板を所定の位置に位置決めする、ことを特徴とする
製材における挽き板の反転防止装置。 2、前記アーム回動手段は、バネ手段又は流体圧手段に
より前記アームを駆動して回動する、ことを特徴とする
請求項1に記載の製材における挽き板の反転防止装置。 3、前記押さえ板は、相互に縁部でヒンジ結合された2
枚の上部押さえ板と下部押さえ板とからなり、前記上部
押さえ板で前記アームに結合されている、ことを特徴と
する請求項1又は2に記載の製材における挽き板の反転
防止装置。[Scope of Claims] 1. A holding plate disposed behind the saw of a sawmill in parallel to the surface of the saw, and a holding plate supported by the sawmill so as to be movable up and down, and moving from the sawmill to the holding plate. a mounting arm extending horizontally and higher than the holding plate;
An adjustment rod supported by the attachment arm so as to be movable along the attachment arm, one end of which is coupled to the presser plate, and the other end rotatably supported by the sawmill side end of the adjustment rod. an arm, an arm rotation means for rotating the pivoted arm in the direction of the adjustment rod, and an arm rotation means for rotating the arm rotated by the arm rotation means within a predetermined angle from the adjustment rod. and stopper means for preventing the
Preventing the turning of a sawn board in sawing lumber, characterized in that the holding plate is positioned at a predetermined position with respect to the sawn board cut from the wood to be cut by the saw by adjusting the positions of the mounting arm and the adjustment rod. Device. 2. The device for preventing inversion of a sawn board in sawing lumber according to claim 1, wherein the arm rotating means rotates the arm by driving the arm by a spring means or a fluid pressure means. 3. The presser plates are hinged to each other at their edges.
3. The device for preventing inversion of a sawing board in lumber according to claim 1, comprising an upper pressing plate and a lower pressing plate, and is connected to the arm by the upper pressing plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14740590A JPH0441201A (en) | 1990-06-07 | 1990-06-07 | Inversion preventive device for sawing board in lumbering |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14740590A JPH0441201A (en) | 1990-06-07 | 1990-06-07 | Inversion preventive device for sawing board in lumbering |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0441201A true JPH0441201A (en) | 1992-02-12 |
Family
ID=15429554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14740590A Pending JPH0441201A (en) | 1990-06-07 | 1990-06-07 | Inversion preventive device for sawing board in lumbering |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0441201A (en) |
-
1990
- 1990-06-07 JP JP14740590A patent/JPH0441201A/en active Pending
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