JP3195225B2 - Apparatus for maintaining an approach runway of a ski jumping platform, apparatus for finishing a groove on an approach runway, method for adjusting an approach runway, and method for finishing a groove - Google Patents
Apparatus for maintaining an approach runway of a ski jumping platform, apparatus for finishing a groove on an approach runway, method for adjusting an approach runway, and method for finishing a grooveInfo
- Publication number
- JP3195225B2 JP3195225B2 JP05519996A JP5519996A JP3195225B2 JP 3195225 B2 JP3195225 B2 JP 3195225B2 JP 05519996 A JP05519996 A JP 05519996A JP 5519996 A JP5519996 A JP 5519996A JP 3195225 B2 JP3195225 B2 JP 3195225B2
- Authority
- JP
- Japan
- Prior art keywords
- approach
- snow
- groove
- sliding surface
- maintenance
- 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 - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H4/00—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow
- E01H4/02—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow for sporting purposes, e.g. preparation of ski trails; Construction of artificial surfacings for snow or ice sports ; Trails specially adapted for on-the-snow vehicles, e.g. devices adapted for ski-trails
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H4/00—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow
- E01H4/02—Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow for sporting purposes, e.g. preparation of ski trails; Construction of artificial surfacings for snow or ice sports ; Trails specially adapted for on-the-snow vehicles, e.g. devices adapted for ski-trails
- E01H4/023—Maintaining surfaces for ice sports, e.g. of skating rinks
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C19/00—Design or layout of playing courts, rinks, bowling greens or areas for water-skiing; Covers therefor
- A63C19/10—Ice-skating or roller-skating rinks; Slopes or trails for skiing, ski-jumping or tobogganing
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Golf Clubs (AREA)
- Nonmetal Cutting Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、スキージャンプ台
のアプローチ滑走面に積もった雪を除雪・圧雪して、ア
プローチ滑走面を形成するアプローチ滑走面整備装置並
びに該アプローチ滑走面の溝仕上装置および滑走面調整
方法並びに溝仕上方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an approach running surface maintenance device for forming an approach running surface by removing snow and snow compaction on an approach running surface of a ski jumping platform, and a groove finishing device for the approach running surface. The present invention relates to a method for adjusting a running surface and a method for finishing a groove.
【０００２】[0002]
【従来の技術】スキー競技のジャンプ台は、一般に山の
急斜面を利用した自然形のものが多いが、近年は鉄骨で
形成された人工のジャンプ台も造られている。これらの
ジャンプ台のアプローチ滑走面は多量の積雪が急角度の
斜面におかれ、長いスロープを形成している。例えば、
アプローチ滑走面だけでも通常７０ｍ乃至９０ｍの長さ
に形成されている。2. Description of the Related Art In general, ski jumping hills are generally of a natural type utilizing a steep slope of a mountain, but in recent years, artificial jump hills formed of steel frames have also been manufactured. The approach runway of these hills has a long slope with a lot of snow on steep slopes. For example,
The length of the approach slide surface alone is usually 70 m to 90 m.
【０００３】スキー競技におけるジャンプ競技の記録ア
ップ、さらなる記録更新、選手層の拡大、強化には豊富
な練習量の確保が必要不可欠であります。これには均質
で、すぐれた滑走性能を有するアプローチ滑走面を常に
迅速、安全、確実に確保できることが必要であります。It is indispensable to secure abundant training amounts to increase the record of ski jumping competitions, further update the record, expand and strengthen the athlete class. To do this, it is necessary to constantly, quickly and safely and reliably secure a uniform and excellent approach performance.
【０００４】現在、ジャンプ競技を行う際のジャンプ台
のアプローチ滑走面の整備、すなわちアプローチ滑走面
の除雪・圧雪、アプローチ溝の溝切り等のアプローチ滑
走面整備は、機械化されていない。しかも、急斜面の作
業にもかかわらず、大勢の作業員による手作業で行われ
ているのが現状であります。従って、スキー競技ジャン
プ台の整備作業は、滑止のアイゼンを装着した大勢の作
業員が、まず、命綱を付けてジャンプ台の急斜面に立
ち、積雪をアプローチ滑走面の両側によける作業を行
い、積雪した雪を一定の高さに調整・雪固めの作業を行
ってアプローチ滑走面を確保する作業を行う。次で、テ
ストスキヤーが整備したアプローチ滑走面を数回滑って
アプローチ溝を形成していた。[0004] At present, the maintenance of the approach sliding surface of the jumping pedestal when performing a jumping competition, that is, the maintenance of the approach sliding surface such as snow removal / snow compaction of the approach sliding surface and the grooving of the approach groove is not mechanized. In addition, despite the work on steep slopes, it is currently being performed manually by a large number of workers. Therefore, in the maintenance work of ski competition jumping hills, a large number of workers equipped with anti-skid crampons first put on a lifeline and stood on the steep slope of the jumping hill, and worked on snow on both sides of the approach slide surface. In addition, work to secure the approach runway surface by adjusting the height of the snow covered to a certain level and hardening the snow. Next, an approach groove was formed by sliding the approach skiing surface prepared by the test skier several times.
【０００５】[0005]
【発明が解決しようとする課題】このように、ジャンプ
台のアプローチ滑走面の整備を人力による手作業で行う
ことは次のような問題を生じる。As described above, the maintenance of the approach slide surface of the jumping pedestal by manual operation involves the following problems.
【０００６】整備に大勢の作業員が動員され、長いコ
ースの整備に成り、多くの労力と時間を要し、迅速にア
プローチ滑走面を形成することが困難である。また、人
手によるためあらかじめ仕上げたアプローチ滑走面を傷
付けるおそれがあった。[0006] A large number of workers are mobilized for maintenance, which leads to maintenance of a long course, requiring a lot of labor and time, and it is difficult to quickly form an approach slide surface. In addition, there is a risk that the approach run surface that has been finished in advance may be damaged due to manual operation.
【０００７】急斜面で、多数の作業員が雪上の作業に
なるため作業環境が悪く、危険な状況で作業を行うため
精度の高いアプローチ滑走面の調整が困難である。On a steep slope, a large number of workers work on snow, so the working environment is poor, and it is difficult to adjust the approach running surface with high precision because the work is performed in a dangerous situation.
【０００８】大勢の作業員による手作業のため、アプ
ローチ滑走面が均質に調整ができず、アプローチ溝に微
妙な変形、凹凸が生じ、スキー滑走時にスキー板の振動
やブレの原因となり、確実性に欠け、記録面でも悪影響
が生じた。特に人手による作業は、アプローチ滑走溝の
深さをアプローチ滑走面全長に亘り一定の深さに仕上げ
ることが困難である。[0008] Due to the manual work by a large number of workers, the approach sliding surface cannot be adjusted uniformly, causing slight deformation and unevenness in the approach groove, causing vibration and blurring of the ski plate when skiing. And the recording surface was also adversely affected. In particular, it is difficult for a manual operation to finish the approach sliding groove at a constant depth over the entire length of the approach sliding surface.
【０００９】滑走面の整備、修正を手作業による場
合、上記のように、長時間を要するため、迅速性に欠
け、気象条件の変化に対応出来ず、しいては選手の練習
時間の不足、競技条件の一様化の妨げとなっている。[0009] When the maintenance and correction of the running surface is performed manually, as described above, it takes a long time, and thus lacks quickness, cannot cope with changes in weather conditions, and furthermore, lacks practice time for the players. This has hindered the uniformity of competition conditions.
【００１０】このように、大勢の人海戦術によるアプロ
ーチ滑走面の整備は、時間と費用を要し、かつ、均質な
アプローチ滑走溝の形成が望まれることから、機械化の
要望が強く叫ばれていた。[0010] As described above, the maintenance of the approach sliding surface using a large number of human naval tactics requires time and expense, and the formation of a uniform approach sliding groove is desired. Was.
【００１１】すなわち、ジャンプ競技記録のさらなる更
新、選手層の拡大、強化にはすぐれた滑走性能を有する
アプローチ滑走面と、豊富な練習量の確保が必要不可欠
である。常に迅速、安全、確実にアプローチ滑走面が確
保できる設備が必要性が多方面から指摘されている。That is, in order to further update the jump competition record, expand and strengthen the player class, it is essential to secure an approach sliding surface having excellent sliding performance and an abundant amount of practice. It has been pointed out from various angles that there is a need for equipment that can always ensure the approach runway quickly, safely and reliably.
【００１２】昨今の国際スキー連盟におけるジャンプ競
技会時のアプローチ滑走面の機械整備の義務付けが決定
し、各国ともこれに対する対応が急がれている。In recent years, the International Ski Federation has decided to oblige the mechanics of the approach runway at the time of jump competitions, and the response to this has been urgent in all countries.
【００１３】アプローチ滑走面整備の機械化、省力化、
迅速化、整備安全の確保等ジャンプ競技場を取り巻く課
題の解決が、ジャンプ競技の記録向上、練習量の増加、
底辺の拡大をもたらすものであります。[0013] Mechanization of approach runway maintenance, labor saving,
Resolving issues surrounding the jump stadium, such as speeding up and maintaining maintenance safety, improved the record of jumping competitions, increased the amount of practice,
It brings about the expansion of the bottom.
【００１４】本発明者は、先に上記のこれらの事情に鑑
み、スキージャンプ台のアプローチ滑走面整備装置およ
びアプローチ滑走面調整方法（特願平７−７２７０３
号）を提案しました。In view of these circumstances, the inventor of the present invention has previously described an approach sliding surface maintenance apparatus and an approach sliding surface adjustment method for a ski jumping platform (Japanese Patent Application No. Hei 7-72703).
No.) was proposed.
【００１５】しかしながら、アプローチ滑走溝形設時に
溝肩部に切削雪粉が溜まったり、溝底隅部に切削雪粉が
溜まりして確実な溝形成が困難であった。However, when forming the approach sliding groove, the cutting snow powder accumulates at the shoulder of the groove or the cutting snow powder accumulates at the corner of the groove bottom, making it difficult to form a reliable groove.
【００１６】また、アプローチ滑走溝は全長に亘り、ザ
ラメ雪状に整備されるのが、ジャンブ条件として好適あ
るが、人手で溝底部の仕上げ状態を一定に調整すること
は困難であった。[0016] It is preferable that the approach sliding groove is maintained in a snow-like shape over the entire length, as a condition of the jump, but it has been difficult to manually adjust the finished state of the groove bottom part to a constant level.
【００１７】本発明者は、先に上記の事情に鑑み、特願
平７−７２７０３号を改良して、スキージャンプ台のア
プローチ滑走面の溝仕上装置およびアプローチ滑走溝仕
上方法（特願平７−２９２５８８号）を提案しました。In view of the above circumstances, the present inventor has improved Japanese Patent Application No. 7-72703 and has developed a groove finishing apparatus and a method of finishing an approach sliding groove on an approach sliding surface of a ski jumping platform. -292588).
【００１８】しかしながら、新雪、乾雪、湿雪あるいは
ザラメ雪化した春先の雪等、雪質が多岐にわたり、いず
れの雪質でもアプローチ滑走面を均質に除・圧雪するこ
が要望されている。However, there are various snow qualities, such as fresh snow, dry snow, wet snow, or snowy spring snow, and it is demanded to uniformly remove and consolidate the approach sliding surface in any snow qualities.
【００１９】本発明は、上記のこれらの課題を解決した
もので、ジャンプ台のアプローチ滑走面の整備を人力に
よることなく、アプローチ滑走面整備の機械化を図るこ
とにより、アプローチ滑走面整備の省力化、迅速化、整
備作業の安全と、雪質の如何にかかわらず、均質で精度
の高いアプローチ滑走面を整備することのできるアプロ
ーチ滑走面整備装置並びにアプローチ滑走溝仕上装置、
および滑走面整備方法並びに溝仕上方法を提供すること
を目的とする。The present invention solves the above-mentioned problems, and the mechanization of the approach runway maintenance without manpower maintenance of the approach runway of the jumping ladder saves labor for maintenance of the approach runway. , Speeding up, safety of maintenance work, and regardless of snow quality, approach running surface maintenance device and approach running groove finishing device that can maintain uniform and accurate approach running surface,
It is another object of the present invention to provide a running surface maintenance method and a groove finishing method.
【００２０】[0020]
【課題を解決するための手段】第１の本発明のスキージ
ャンプ台のアプローチ滑走面整備装置は、スキージャン
プ台のアプローチ滑走面の両側に平行に配設されたガイ
ドレール上を該レールに沿って張り渡されたケーブル
と、ガイドレール上を走行する整備機本体と、該整備機
本体の谷側下端部に上下動可能に装着され前記アプロー
チ滑走面にある過剰の積雪を除雪すると共に残りの該ア
プローチ滑走面にある雪を加圧平坦化する除・圧雪板
と、整備機本体の山側上端部に搭載されアプローチ滑走
面の加圧平坦化された該アプローチ滑走面雪面に沿って
平行に２本のアプローチ溝を形設する回転カッタと、前
記整備機本体に搭載され前記ケーブルに係合して前記整
備機本体を前記アプローチ滑走面にに沿って上下動させ
る駆動装置と、前記回転カッタを駆動する動力装置を備
え、前記ケーブルによって前記整備機本体を上下動しな
がら前記アプローチ滑走面を整備する。According to a first aspect of the present invention, there is provided an apparatus for maintaining an approach sliding surface of a ski jumping pedestal, on a guide rail disposed in parallel with both sides of the approaching sliding surface of the ski jumping pedestal. And a maintenance machine main body running on the guide rails, and an excessive snow cover on the approach runway surface which is vertically movably mounted on the lower end of the valley side of the maintenance machine main body and removes remaining snow. A snow removing plate for pressurizing and flattening the snow on the approach runway, and a snowboard mounted on the upper end of the maintenance machine body on the mountain side in parallel with the approach runway where the approach runway is flattened. A rotary cutter for forming two approach grooves, a driving device mounted on the main body of the maintenance machine and engaging with the cable to move the main body of the maintenance machine up and down along the approach sliding surface; Comprising a power unit for driving the cutter, servicing the approach sliding surface while vertically moving the maintenance machine main body by the cable.
【００２１】第２の本発明のスキージャンプ台のアプロ
ーチ滑走面整備方法は、スキージャンプ台のアプローチ
滑走面の両側にガイドレールを配設し、該ガイドレール
上に、前記スキージャンプ台のアプローチ滑走面に、前
記滑走面にある過剰の積雪を除雪するとともに残りの滑
走面にある雪を加圧平坦化する除・圧雪板とこの加圧平
坦化された雪面に２本のスキー滑走溝を形成する回転カ
ッタとを備えた整備装置を走行させて、前記アプローチ
滑走面を山側から谷側に下降する際に、除・圧雪板を下
降させと共に回転カッタを上昇させて前記アプローチ滑
走面の雪を除・圧雪し、上昇時に前記除・圧雪板を上昇
させと共に回転カッタを下降させて除圧雪面にスキー滑
走溝を形成することを特徴とする。According to a second method of the present invention, a guide rail is provided on both sides of an approach slide surface of a ski jump table, and the approach slide of the ski jump table is mounted on the guide rail. On the surface, a snow-removing / snowboard for removing excess snow on the sliding surface and pressurizing and flattening the snow on the remaining sliding surface, and two ski sliding grooves on the flattened snow surface. When the maintenance device having the rotating cutter to be formed is run, and the approach sliding surface is lowered from the mountain side to the valley side, the snow removal on the approach sliding surface is performed by lowering the snow removing plate and raising the rotating cutter. And removing the snow, and lifting the snow-removing plate and lowering the rotary cutter when ascending to form a ski run groove on the snow surface to be decompressed.
【００２２】第３の本発明のスキージャンプ台のアプロ
ーチ滑走面の溝仕上装置は、スキージャンプ台のアプロ
ーチ滑走面の両側に平行に配設されたガイドレール上を
該レールに沿って張り渡されたケーブルと、ガイドレー
ル上を走行する整備機本体と、整備機本体の谷側下端部
に上下動可能に装着されアプローチ滑走面にある過剰の
積雪を除雪すると共に残りの該アプローチ滑走面にある
雪を加圧平坦化する除・圧雪板と、整備機本体の山側上
端部に搭載され記アプローチ滑走面の加圧平坦化された
アプローチ滑走面雪面に沿って平行に２本のアプローチ
溝を形設する回転カッタとを備え、ケーブルによって整
備機本体を上下動しながら記アプローチ滑走面を整備す
るアプローチ滑走面整備装置であって、回転カッタと進
行方向が同一線上で、整備機本体の下端部側に上下動自
在に取付けられ、回転カッタ形設溝より幅広でソリ状に
形成された溝シェーバホルダと、溝シェーバホルダの下
面に固定され回転カッタ形設溝と略同一幅で雪との接触
面を格子状に刻設したものを断面鋸歯状に形成した溝シ
ェーバとから構成されることを特徴とする。According to a third aspect of the present invention, there is provided a groove finishing apparatus for an approach sliding surface of a ski jumping pedestal, which is stretched along guide rails disposed in parallel on both sides of the approaching sliding surface of the ski jumping skate. Cable, a maintenance machine main body running on guide rails, and an excessively snow-covered approach sliding surface which is vertically movably mounted on the lower end of the valley side of the maintenance machine main body and is located on the remaining approach sliding surface. A snow removal plate that pressurizes and flattens the snow, and two approach grooves parallel to the snow surface that are mounted on the upper end of the maintenance machine body and that are flattened on the approach runway. An approach sliding surface maintenance device that includes a rotating cutter to be formed, and maintains the approach sliding surface while moving the maintenance machine body up and down by a cable, wherein a traveling direction of the rotating cutter is the same as that of the rotating cutter. , A groove shaver holder that is vertically movably attached to the lower end side of the maintenance machine main body and that is wider than the rotary cutter-shaped groove and is formed in a sled shape, and a rotary cutter-shaped groove fixed to the lower surface of the groove shaver holder. A groove shaver having a sawtooth cross-section formed by engraving a contact surface with snow with the same width in a lattice shape.
【００２３】第４の本発明のスキージャンプ台のアプロ
ーチ滑走面の溝仕上方法は、スキージャンプ台のアプロ
ーチ滑走面の両側に２本の平行なガイドレールを配設
し、ガイドレール上に回転カッタと除・圧雪板並びに溝
シェーバホルダを具備した整備機本体をケーブルで駆動
させるにあたり、整備機本体の下端部側に配置されてい
る除・圧雪板を下降させると共に上端部の回転カッタ並
びに下端部の溝シェーバホルダを上昇させた状態で整備
機本体をスキージャンプ台の山側頂上に位置させた後、
スキージャンプ台のアプローチ滑走面に沿って整備機本
体をガイドレールに沿って下降させつつ、アプローチ滑
走面にある過剰の積雪をアプローチ滑走面両側に除雪す
ると共に残りの滑走面にある雪を加圧平坦化しながらア
プローチ滑走面谷側まで下降させ、整備機本体がアプロ
ーチ滑走面谷側下端部に到達したとき、整備機本体の下
端部の除・圧雪板を上昇させると共に上端部の回転カッ
タ並びに下端部の溝シェーバホルダを下降させ、ガイド
ロープを逆駆動させて、回転カッタの駆動でアプローチ
滑走面に沿ってアプローチ溝切りを行い、続いて回転カ
ッタの形設溝を溝シェーバホルダで溝肩部および溝底隅
部を圧雪成形すると共にアプローチ溝底部を溝シェーバ
でザラメ雪状に溝仕上げことを特徴とする。According to a fourth aspect of the present invention, there is provided a method for finishing a groove on an approach sliding surface of a ski jumping platform, wherein two parallel guide rails are provided on both sides of the approaching sliding surface of the ski jumping platform, and a rotary cutter is mounted on the guide rail. When driving the maintenance machine main body having the snow removal / snow plate and the groove shaver holder with a cable, the snow removal / snow plate arranged on the lower end side of the maintenance machine main body is lowered, and the rotary cutter at the upper end and the lower end are driven. After positioning the maintenance machine body on the top of the ski jump table with the groove shaver holder raised,
As the maintenance machine is lowered along the guide rails along the approach slide surface of the ski jumping platform, excess snow on the approach slide surface is removed on both sides of the approach slide surface and the remaining snow on the slide surface is pressurized. When the maintenance machine body reaches the lower end of the approach running surface valley side while flattening, the maintenance machine body reaches the lower end of the approach running surface valley side, raises the snow removal plate at the lower end of the maintenance machine body, and rotates and lowers the upper end of the cutter. Lower the groove shaver holder, drive the guide rope in reverse, drive the rotary cutter to cut the approach groove along the approach slide surface, and then use the groove shaver holder to set the groove of the rotary cutter to the groove shoulder. In addition, the corner of the groove bottom is compacted with snow, and the bottom of the approach groove is groove-finished with a groove shaver in a snow-like shape.
【００２４】本発明はこのように、整備機本体をスキー
ジャンプ台の山側頂上に位置させ、整備機本体の下端部
側に装着された除・圧雪板を下降させた状態で、ガイド
レールに沿ってケーブルを駆動させて整備機本体を谷側
に下降させることにより、上方からアプローチ滑走面の
積雪を除去して雪表面の高さを一様に調整し併せて押圧
して均一の固さに表面仕上げる。As described above, according to the present invention, the main body of the maintenance machine is positioned on the mountain top of the ski jump table, and the snow removing plate attached to the lower end of the main body of the maintenance machine is lowered along the guide rail. By driving the cable and lowering the maintenance machine body to the valley side, the snow on the approach runway is removed from above and the height of the snow surface is adjusted uniformly and pressed together to achieve a uniform hardness. Finish the surface.
【００２５】このとき、整備機本体を谷側に下降させる
時に、除・圧雪板５の角度を変えることにより、除・圧
雪板５の下端縁部のカッテングエッジ５ｂと押え板５ｃ
の働きで、新雪、乾雪、湿雪あるいはザラメ雪化した春
先の雪等、いずれの雪質でも均質に除・圧雪するこがで
きる。At this time, when the maintenance machine body is lowered to the valley side, by changing the angle of the snow removing / pressing plate 5, the cutting edge 5 b at the lower edge of the snow removing / pressing plate 5 and the holding plate 5 c are changed.
Can uniformly remove and consolidate any type of snow, such as fresh snow, dry snow, wet snow, or snow that has turned into snow in the early spring.
【００２６】また、整備機本体の回転カッタを下降させ
て、アプローチ滑走面に谷側から山側に向けて平行な２
本のアプローチ溝を順次を形設する。Further, the rotary cutter of the maintenance machine body is lowered, so that the rotary cutter is parallel to the approach sliding surface from the valley side to the mountain side.
The approach grooves of the book are sequentially formed.
【００２７】さらに、谷側から山側に向けて整備機本体
を上昇させるとき、回転カッタと溝シェーバホルダを下
降させて、回転カッタで溝切された溝を溝シェーバホル
ダと溝シェーバで溝側面を押圧して溝肩にＲを付けと溝
底隅部を平坦にすると共に溝底部をザラメ雪状に仕上げ
る。Further, when raising the maintenance machine main body from the valley side to the mountain side, the rotary cutter and the groove shaver holder are lowered, and the groove cut by the rotary cutter is cut by the groove shaver holder and the groove shaver. When pressed, R is added to the groove shoulder to flatten the groove bottom corner and finish the groove bottom in a snow-like shape.
【００２８】さらにまた、谷側から山側に向けて整備機
本体を上昇させるとき、整備機本体の車輪の前後の除雪
板を下ろして、回転カッタ溝切りの際に生じる残雪を除
雪し、溝シェーバホルダと溝シェーバでの溝側面および
溝上側端部を圧雪成形し、溝底をザラメ雪状に溝仕上げ
て、滑走溝７の精度を高める。Further, when the maintenance machine main body is raised from the valley side to the mountain side, the snow removing plates in front and behind the wheels of the maintenance machine main body are lowered to remove snow remaining at the time of the rotary cutter groove cutting, and the groove shaver is used. The side surfaces of the holder and the groove shaver and the upper end of the groove are subjected to snow compaction, and the bottom of the groove is finished in a snow-like shape to improve the accuracy of the sliding groove 7.
【００２９】[0029]
【発明の実施の形態】以下、本発明の詳細を一実施例を
示す図面を参照して説明する。図１は本発明に係るスキ
ージャンプ台のアプローチ滑走面整備装置の全体を示す
斜視図、図２は本発明のアプローチ滑走面整備装置の斜
視図、図３は本発明のアプローチ滑走面整備装置の一部
切欠いた斜視図、図４は本発明のアプローチ滑走面整備
装置の上面図、図５は本発明のアプローチ滑走面整備装
置の上面図、図６は除・圧雪板の拡大説明図、図７は圧
雪板の変化を示す説明図、図８は本発明のアプローチ溝
仕上げ装置の側面図、図９は本発明のアプローチ溝仕上
げ装置の一部切欠いた正面図、図１０は本発明の溝シェ
ーバホルダと溝シェーバの底面図、図１１は本発明の溝
シェーバの底面の拡大斜視図、図１２は図１０のＡ−Ａ
線に沿う拡大断面図、図１３は本発明のアプローチ溝の
説明図で、（ａ）溝仕上げ前の状態図、（ｂ）溝仕上げ
の状況図、（ａ）溝仕上げ後の溝状態図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the drawings showing an embodiment. FIG. 1 is a perspective view showing an entire apparatus for maintaining an approach runway of a ski jumping stand according to the present invention, FIG. 2 is a perspective view of the apparatus for maintaining an approach runway of the present invention, and FIG. FIG. 4 is a top view of the approach sliding surface maintenance device of the present invention, FIG. 5 is a top view of the approach sliding surface maintenance device of the present invention, and FIG. 7 is an explanatory view showing the change of the snow compact, FIG. 8 is a side view of the approach groove finishing device of the present invention, FIG. 9 is a partially cutaway front view of the approach groove finishing device of the present invention, and FIG. 10 is a bottom view of the shaver holder and the groove shaver, FIG. 11 is an enlarged perspective view of the bottom of the groove shaver of the present invention, and FIG.
FIG. 13 is an explanatory view of an approach groove according to the present invention. FIG. 13 (a) is a state diagram before the groove finish, (b) is a state diagram of the groove finish, and (a) is a state diagram of the groove after the groove finish. is there.
【００３０】本発明のスキージャンプ台のアプローチ滑
走面整備装置は、図１に示すように、スキージャンプ台
のアプローチ滑走面１の両側に平行に配設された一対の
ガイドレール２、２上をこのレール２、２に沿って張り
渡されたケーブル３によって、整備機本体４を上記のア
プローチ滑走面１に沿って山側から谷側、さらに谷側か
ら山側に上下動しながらアプローチ滑走面１を除雪・圧
雪・アプローチ溝切り等の整備を行うものである。As shown in FIG. 1, the apparatus for maintaining an approach sliding surface of a ski jumping platform according to the present invention includes a pair of guide rails 2, 2 arranged in parallel on both sides of an approaching sliding surface 1 of a ski jumping platform. The cable 3 stretched along the rails 2 and 2 moves the maintenance machine main body 4 up and down along the approach running surface 1 from the mountain side to the valley side and further from the valley side to the mountain side while moving the maintenance machine body 4 up and down. Maintenance of snow removal, compaction snow, approach grooving, etc. is performed.
【００３１】この整備機本体４には、アプローチ滑走面
１にある積雪を加圧平坦化する除・圧雪板５と、アプロ
ーチ滑走面１に２本のアプローチ溝７を形設する回転カ
ッタ６と、この回転カッタ６と進行方向を同一線上にあ
り、回転カッタ６で形設されたアプローチ溝７を押圧し
て溝７の肩にアールを付け、溝７の隅部を平坦にると共
に溝底をザラメ雪状に仕上げる溝シェーバホルダ８と溝
シェーバ９で構成される。図中、１６は谷側に設けられ
たプーリ伸縮装置、１７はウインチ、１８はケーブル３
のテンション、１９はケーブル３の駆動装置、２０はケ
ーブル３のガイドプーリ、２１は山側に設けられた整備
機本体４の格納台、２２は非常ウインチを示す。The maintenance machine main body 4 includes a snow removing plate 5 for pressurizing and flattening snow on the approach sliding surface 1 and a rotary cutter 6 for forming two approach grooves 7 on the approach sliding surface 1. The approach direction of the rotary cutter 6 is on the same line as the rotary cutter 6, and the approach groove 7 formed by the rotary cutter 6 is pressed to round the shoulder of the groove 7, and the corner of the groove 7 is flattened and the groove bottom is flattened. Is formed by a groove shaver holder 8 and a groove shaver 9 for finishing the surface in a snow-like shape. In the figure, 16 is a pulley extension device provided on the valley side, 17 is a winch, 18 is a cable 3
Reference numeral 19 denotes a driving device for the cable 3, reference numeral 20 denotes a guide pulley for the cable 3, reference numeral 21 denotes a storage base of the maintenance machine main body 4 provided on the mountain side, and reference numeral 22 denotes an emergency winch.
【００３２】実施例の整備機本体４は、図２〜５に示す
ように、アプローチ滑走面１の両側の平行な一対のガイ
ドレール２、２上を車輪１３、１３、１３、１３を介し
てガイドレール２、２に載置される。この整備機本体４
の谷側下端部側には、アプローチ滑走面１にある過剰の
積雪を除雪すると共に残りの滑走面１にある雪を加圧平
坦化する除・圧雪板５が上下動可能に装着されている。
この除・圧雪板５は、角度調節装置４０で、雪質等に併
せて角度を調節できる。また、この整備機本体４の山側
上端部には上記加圧平坦化された雪面すなわちアプロー
チ滑走面１に平行な２本のアプローチ溝７を形設する回
転カッタ６が上下動可能に配置されている。そして、整
備機本体４の下端部で除・圧雪板５の裏面側には、回転
カッタ６と進行方向が同一線上に位置し、下面に格子状
に形設されたものを断面鋸歯状に形成した溝シェーバ９
を固定した溝シェーバホルダ８が装着されている。この
ように構成される実施例の整備機本体４は、ガイドレー
ル２、２上をケーブル３の駆動装置１９の駆動で、アプ
ローチ滑走面１に沿って山側と谷側を昇降させてアプロ
ーチ滑走面１並びにアプローチ溝７を形設する。図２に
おいて、３７、３８は整備機本体４に装着され、ケーブ
ル３のプーリーである。As shown in FIGS. 2 to 5, the maintenance machine main body 4 of the embodiment moves on a pair of parallel guide rails 2 on both sides of the approach sliding surface 1 via wheels 13, 13, 13, 13. It is mounted on guide rails 2 and 2. This maintenance machine body 4
At the lower end side of the valley side, a snow removing / pressing plate 5 for removing excess snow on the approach sliding surface 1 and pressurizing and flattening the snow on the remaining sliding surface 1 is vertically movably mounted. .
The angle of the snow removing / pressing plate 5 can be adjusted by an angle adjusting device 40 in accordance with the snow quality or the like. At the upper end of the main body 4 of the maintenance machine, a rotary cutter 6 for forming two approach grooves 7 parallel to the above-mentioned flattened snow surface, that is, the approach sliding surface 1 is disposed so as to be vertically movable. ing. At the lower end of the main body 4 of the maintenance machine, on the back side of the snow removing / pressing plate 5, the traveling direction is located on the same line as the rotary cutter 6, and the one formed in a lattice shape on the lower surface is formed in a sawtooth cross section. Groove shaver 9
The groove shaver holder 8 is fixed. The maintenance machine main body 4 of the embodiment configured as described above drives the drive device 19 of the cable 3 on the guide rails 2 and 2 to move up and down the mountain side and the valley side along the approach sliding surface 1 to approach the sliding surface. 1 and the approach groove 7 are formed. In FIG. 2, reference numerals 37 and 38 denote pulleys of the cable 3 mounted on the maintenance machine main body 4.
【００３３】本実施例の除・圧雪板５は、図２〜７に示
すように、整備機本体４の下端部谷側に配置され、ブレ
ード５ａとカッティングエッジ５ｂと押え板５ｃで構成
され、アプローチ滑走面１の積雪を除雪する。除・圧雪
板５は、リフトブラケット５０を介して、整備機本体４
のリフトガイド１０ａに上下動自在に装着されている。
すなわち、除・圧雪板５は、リフトブラケット５０に固
定されている上プレート５１と下プレート５２に、除・
圧雪板５の裏面に固着されている上ガイド５３と下ガイ
ド５４とで取付けられている。下プレート５２と下ガイ
ド５４の支点ピン５５が支点となって角度を調節する。
上プレート５１には角度を変えるための複数個の差込み
穴５１ａが穿設され、差込み穴５１ａを変えることによ
って、除・圧雪板５の角度を変える。As shown in FIGS. 2 to 7, the snow removing / pressing plate 5 of this embodiment is disposed on the valley side of the lower end portion of the maintenance machine main body 4 and includes a blade 5a, a cutting edge 5b, and a pressing plate 5c. The snow on the approach runway 1 is removed. The snow removal / snowplate 5 is connected to the maintenance machine main body 4 via the lift bracket 50.
Is mounted on the lift guide 10a so as to be vertically movable.
That is, the snow removal plate 5 is attached to the upper plate 51 and the lower plate 52 fixed to the lift bracket 50,
The upper guide 53 and the lower guide 54 which are fixed to the back surface of the snow plate 5 are attached. The fulcrum pin 55 of the lower plate 52 and the lower guide 54 serves as a fulcrum to adjust the angle.
A plurality of insertion holes 51a for changing the angle are formed in the upper plate 51. By changing the insertion holes 51a, the angle of the snow removing / pressing plate 5 is changed.
【００３４】このように構成される除・圧雪板５には、
整備機本体４の谷側下端部に装着され、山側から谷側に
アプローチ滑走面１の積雪を除雪するブレード５ａとこ
のブレード５ａの下縁部に、アプローチ滑走面１の積雪
を除雪するカッテングエッジ５ｂ並びにカッテングエッ
ジ５ｂの後方で緩いカーブ面を備えた押え板５ｃが一体
に配設されて構成されている。ブレード５ａの幅は除・
圧雪が均一化できるように２本のガイドレール２、２の
幅より広く形成されている。これによってアプローチ滑
走面１の積雪がブレード５ａで押出され、アプローチ滑
走面がブレード５ａのカッテングエッジ５ｂで一定の高
さにカッテングされつつ下降する。続いてカッテングエ
ッジ５ｂの後方の押え板５ｃの曲面が雪面を押圧してア
プローチ滑走面１の雪を固める。The snow removing / pressing plate 5 configured as described above includes:
A blade 5a mounted on the lower end of the valley side of the maintenance machine main body 4 for removing snow on the approach sliding surface 1 from the mountain side to the valley side, and a cutting edge for removing snow on the approach sliding surface 1 at a lower edge of the blade 5a. 5b and a pressing plate 5c having a gentle curved surface behind the cutting edge 5b are integrally provided. Excluding the width of blade 5a
The two guide rails 2 are formed wider than the width of the two guide rails 2 so that the snow compaction can be uniform. As a result, the snow on the approach sliding surface 1 is pushed out by the blade 5a, and the approach sliding surface is lowered while being cut to a fixed height by the cutting edge 5b of the blade 5a. Subsequently, the curved surface of the pressing plate 5c behind the cutting edge 5b presses the snow surface to solidify the snow on the approach sliding surface 1.
【００３５】本実施例による除・圧雪板５は、固定され
たままでもよいが、アプローチ滑走面１の雪は、新雪、
乾雪、湿雪あるいはザラメ雪化した春先の雪等、同一の
雪質でないので、均質に除・圧雪するために、角度調節
装置４０で除・圧雪板５の角度を変化させる。これによ
ってあらゆる雪質に対して除・圧雪板５を調整すること
ができる。The snow removing / pressing plate 5 according to the present embodiment may be fixed, but the snow on the approach sliding surface 1 is fresh snow,
Since the snow quality is not the same, such as dry snow, wet snow, or snowy spring snow, the angle of the snow removing / pressing plate 5 is changed by the angle adjusting device 40 to uniformly remove and press snow. Thus, the snow removing / pressing plate 5 can be adjusted for all types of snow.
【００３６】すなわち、角度調節装置４０は、図６に示
すように、整備機本体４の下端部谷側にリフトブランケ
ット５０にリンクピン５５で回転自在に取付けられ、除
・圧雪板５の下端縁部にカッテングエッジ５ｂとその後
部に圧雪構造物である押え板５ｃが一体に組付けられて
いる。この除・圧雪板５の上部には除・圧雪板５の取付
け角度調整のための上プレート５１、下プレーと５２に
は角度の調整用ブランケット５６が取付けられ、何箇所
かのピン差込穴５１ａにピン５７を差込むことで除・圧
雪板５の取付け角度を変化させることができる。ピン５
７で固定するので安定し、ピン差込穴５１ａを変えるこ
とによって任意の角度にさせる。また、角度の調節は、
油圧ジャッキ又はターンバックル等を用いて無段階に角
度を変化させる構造としても同様である。That is, as shown in FIG. 6, the angle adjusting device 40 is rotatably attached to the lift blanket 50 by the link pin 55 on the lower end valley side of the maintenance machine main body 4, and the lower edge of the snow removing / snowplate 5 is provided. A cutting edge 5b and a pressing plate 5c, which is a compacted snow structure, are integrally attached to the portion. An upper plate 51 for adjusting the mounting angle of the snow remover / snow plate 5 is mounted on the upper part of the snow remover / snow plate 5, and a blanket 56 for adjusting the angle is mounted on the lower play and 52, and several pin insertion holes are provided. By inserting the pin 57 into the pin 51a, the mounting angle of the snow removing / pressing plate 5 can be changed. Pin 5
7 to stabilize, and the pin insertion hole 51a is changed to an arbitrary angle by changing the pin insertion hole 51a. Also, adjustment of the angle,
The same applies to a structure in which the angle is changed steplessly using a hydraulic jack or a turnbuckle or the like.
【００３７】雪質の変化に対応して除・圧雪板５の角度
をストッパピン差込穴５１ａの位置を選択し変えること
により、自由に変化させる。例えば、図７（ａ）に示す
ように、春先のザラメ雪のときは、ストッパピン差込穴
５１ａの位置を外側ものを使用して、カッテングエッジ
５ｂをたてて、圧雪力を低く押さえた状態とし、さらに
図７（ｂ）に示すように、新雪およびアイスバーンの状
態の時は、ストッパピン差込穴４７の位置を内側ものを
使用して、圧雪力を付与した状態とする。The angle of the snow removing / pressing plate 5 can be freely changed by selecting and changing the position of the stopper pin insertion hole 51a in accordance with the change in the snow quality. For example, as shown in FIG. 7 (a), when spring snow occurs in early spring, the position of the stopper pin insertion hole 51a is set to the outside, and the cutting edge 5b is set up to reduce the snow compaction force. As shown in FIG. 7B, in the case of fresh snow and ice burn, the position of the stopper pin insertion hole 47 is set to a state in which snow pressing force is applied using the inside.
【００３８】除・圧雪板５の昇降は、整備機本体４の昇
降装置１０で行う。昇降装置１０はリフトブラケット５
０を支持し、上下動させるリフトガイド１０ａに設けら
れたローラ１０ｂ、チェーン１０ｃ、リフトジャッキ１
０ｄとハンドル１０ｅで構成される。このように昇降装
置１０は整備機本体１の下端部谷側に取付けられてい
る。ハンドル９ａを回すことで除・圧雪板５が昇降し高
さを調節する。除・圧雪板５の昇降と共に、ブレード５
ａの角度をかくぢ調節装置４０で変え、雪質に対応し
て、精度高くアプローチ滑走面１を調整する。The lifting / lowering of the snow removing / snowboard 5 is performed by the lifting / lowering device 10 of the main body 4 of the maintenance machine. The lifting device 10 is a lift bracket 5
Roller 10b, chain 10c, lift jack 1 provided on a lift guide 10a that supports
0d and a handle 10e. As described above, the lifting device 10 is attached to the lower end valley side of the maintenance machine main body 1. By turning the handle 9a, the snow removing / pressing plate 5 is moved up and down to adjust the height. The blade 5
The angle of a is changed by the adjusting device 40, and the approach sliding surface 1 is adjusted with high accuracy according to the snow quality.
【００３９】実施例の回転カツタ６、６は、アプローチ
滑走面１にアプローチ溝７を形設する２個の回転歯６
ｄ、６ｄ，……を駆動させる動力装置８並びにこれらを
一体に昇降させる昇降装置１１で構成される。回転カツ
タ６、６は、整備機本体４に立脚されたリフトガイド６
ａとこのリフトガイド６ａに装着されているローラー６
ｂ、チェーン６ｃと、リフトジャッキ６ｆ、ハンドル６
ｇで構成される昇降装置１１を介して整備機本体４の上
端部山側に取付けられている。昇降装置１１で回転カツ
タ６を上下動させ、動力装置８の駆動でアプローチ滑走
面１に２本の平行な溝切削のアプローチ溝７を形設す
る。このように昇降装置１１の調整でアプローチ溝７の
深さを調整し、動力装置８で溝切りを調節する。The rotary cutters 6, 6 of the embodiment have two rotary teeth 6 forming an approach groove 7 in the approach sliding surface 1.
, 6d,... and an elevating device 11 for integrally moving these. The rotating cutters 6, 6 are lift guides 6 which are mounted on the maintenance machine main body 4.
a and the roller 6 attached to the lift guide 6a
b, chain 6c, lift jack 6f, handle 6
It is attached to the upper end mountain side of the maintenance machine main body 4 via a lifting device 11 composed of g. The rotary cutter 6 is moved up and down by the elevating device 11, and the driving device 8 drives to form two approach grooves 7 for cutting parallel grooves on the approach sliding surface 1. As described above, the depth of the approach groove 7 is adjusted by adjusting the lifting device 11, and the grooving is adjusted by the power device 8.
【００４０】回転カッタ６、６には、動力装置８に減速
機１５を介し結合されカッタ歯６ｄの回転（矢印方向）
によってアプローチ溝７の切削溝切りを行う。回転カッ
タ６の駆動で発生する切削雪粉は、回転カッタ６の裏面
に取付けられたトレイ１６に収納される。トレイ１６
は、回転カッタ６による切削後の不要な切削雪粉のアプ
ローチ溝７内への侵入を防ぐものである。The rotating cutters 6, 6 are connected to the power unit 8 via a speed reducer 15 to rotate the cutter teeth 6d (in the direction of the arrow).
Cuts the approach groove 7. The cutting snow powder generated by the driving of the rotary cutter 6 is stored in a tray 16 attached to the back surface of the rotary cutter 6. Tray 16
Is to prevent unnecessary cutting snow powder after cutting by the rotary cutter 6 from entering the approach groove 7.
【００４１】実施例のアプローチ溝７の仕上は、図１０
に示すように、回転カッタ６と進行方向が同一線上で、
整備機本体４の下端部側に上下動自在に取付けられ、回
転カッタ６、６の形設したアプローチ溝７より幅広でソ
リ状に形成された溝シェーバホルダ８と、溝シェーバホ
ルダ８の下面に着脱自在に取付けた溝シェーバ９とで構
成される。溝シェーバホルダ８と溝シェーバ９は、溝シ
ェーバホルダ８の下面に固定され回転カッタ６、６の形
設溝７と略同一幅で雪との接触面を格子状に刻設したも
のを断面鋸歯状に形成した溝シェーバ９が固定されてい
る。図中、１２ｃはリフトチェーン、１２ｄはローラ、
１２ｅはリンクブラケット、１２ｆはリンク、１２ｇは
リンクバー、１２ｈはユニバーサルロッド、１２ｉはウ
ォーム、１２ｊは溝シェーバ９を溝シェーバホルダ８に
取付固定するボルト、１２ｋは溝シェーバホルダ８と溝
シェーバ９の押圧と擦りによって生じた雪粉を受取る排
雪板を示す。The finish of the approach groove 7 of the embodiment is shown in FIG.
As shown in the figure, the rotating cutter 6 and the traveling direction are on the same line,
A groove shaver holder 8, which is attached to the lower end side of the maintenance machine main body 4 so as to be vertically movable, is wider than the approach groove 7 formed by the rotary cutters 6, and is formed in a sled shape, and a lower surface of the groove shaver holder 8. And a groove shaver 9 which is detachably mounted. The groove shaver holder 8 and the groove shaver 9 are fixed to the lower surface of the groove shaver holder 8 and have substantially the same width as the grooves 7 of the rotary cutters 6 and 6 and have a contact surface with snow carved in a lattice shape. The groove shaver 9 formed in a shape is fixed. In the figure, 12c is a lift chain, 12d is a roller,
12e is a link bracket, 12f is a link, 12g is a link bar, 12h is a universal rod, 12i is a worm, 12j is a bolt for attaching and fixing the groove shaver 9 to the groove shaver holder 8, and 12k is a bolt of the groove shaver holder 8 and the groove shaver 9. Fig. 4 shows a snow removal plate for receiving snow powder generated by pressing and rubbing.
【００４２】溝シェーバホルダ８は、除雪板５の裏面
で、整備機本体４のリフトブラケット５０に固着され、
リンクブラケット１２ｅとリンク１２ｆを介しこれに取
付けられる。これの溝仕上げ整備はリンク１２ｆに継が
るハンドル１２ｂにより減速機、ユニバーサルロッド１
２ｈ、リンクレバー１２ｇ、リンクロット１２ａを介し
溝シェーバホルダ８の位置を変更し押圧を行う。また、
溝深さの調整は溝シェーバ９の厚みを変えることで行
う。溝仕上げをしない場合は、除雪板５のカット面の雪
面より当装置をリンク１２ｆを介しハンドル１２ｂを操
作し降雪に影響のない位置に引上げる。ソリ状の型溝の
交換は溝シェーバホルダ８、ボルト１２ｉによる。な
お、この仕上げ装置はリンク１２ｆを介し溝シェーバホ
ルダ８を揺動可能に取付け、アプローチ面１の曲率の変
化に対応対する。The groove shaver holder 8 is fixed to the lift bracket 50 of the maintenance machine main body 4 on the back surface of the snow removing plate 5,
It is attached to this via a link bracket 12e and a link 12f. This groove finish maintenance is performed by the reduction gear and the universal rod 1 by the handle 12b connected to the link 12f.
2h, the position of the groove shaver holder 8 is changed via the link lever 12g and the link lot 12a, and the pressing is performed. Also,
The groove depth is adjusted by changing the thickness of the groove shaver 9. When the groove finishing is not performed, the device is pulled up from the snow surface of the cut surface of the snow removing plate 5 to a position that does not affect snowfall by operating the handle 12b via the link 12f. The replacement of the warped mold groove is performed by the groove shaver holder 8 and the bolt 12i. In this finishing apparatus, the groove shaver holder 8 is swingably mounted via the link 12f, and copes with a change in the curvature of the approach surface 1.
【００４３】除・圧雪板５、回転カッタ６と溝シェーバ
ホルダ８は、アプローチ滑走面１雪面に対して昇降する
昇降装置１０、１１、１２を備えて上下動する。除・圧
雪板５を昇降させる昇降装置１０は除・圧雪板５の裏面
にリフトジッキのガイド板５ｂを装着し、ハンドル９ａ
を回転させてリフトジッキ５０を上下動させて除・圧雪
板５の上下動と高さを調節する。除・圧雪板５は角度調
節装置で角度をかえる。また、回転カッタ６、６を昇降
させる昇降装置１１は、回転カッタ６、６を上下動させ
るリフトジッキ１０ａを装着し、ハンドル１０ｂを回転
させてリフトジッキ１０ａを上下させて回転カッタ６、
６の上下動と溝切りの溝深さを調節する。さらに溝シェ
ーバホルダ８を昇降させる昇降装置１２は溝シェーバホ
ルダ８を上下動させるリフトロッド１２ａを装着し、ハ
ンドル１２ｂを回転させてリフトロッド１２ａを上下動
させて溝シェーバホルダ８の上下動と溝押圧を調節す
る。The snow removing / pressing plate 5, the rotary cutter 6, and the groove shaver holder 8 are vertically moved by lifting and lowering devices 10, 11, and 12 which move up and down with respect to the snow surface of the approach sliding surface 1. The lifting / lowering device 10 for lifting / lowering the snow removing / snowboard 5 has a guide plate 5b of a lift jack attached to the back of the snow removing / snowboard 5 and a handle 9a.
Is rotated to move the lift jack 50 up and down to adjust the vertical movement and the height of the snow removing / pressing plate 5. The angle of the snow removing / pressing plate 5 is changed by an angle adjusting device. The lifting device 11 for raising and lowering the rotary cutters 6, 6 is equipped with a lift jack 10a for moving the rotary cutters 6, 6 up and down, and rotating the handle 10b to raise and lower the lift jacks 10a.
6. Adjust the vertical movement of 6 and the groove depth of groove cutting. The lifting device 12 for raising and lowering the groove shaver holder 8 is equipped with a lift rod 12a for moving the groove shaver holder 8 up and down, and rotating the handle 12b to move the lift rod 12a up and down to move the groove shaver holder 8 up and down and the groove. Adjust the pressure.
【００４４】整備機本体４は、車輪１３、１３、１３、
１３でガイドレール２、２上をケーブル３の駆動で、山
側から谷側へ、そして谷側から山側へと移動する。この
車輪１３、１３、１３、１３の前後にはガイドレール
２、２上の雪を除雪する除雪板３１、３１、３１、３１
がそれぞれ配設されている。ガイドレール２、２上に残
雪や切削雪粉が残存すとアプローチ溝７、７に段差がで
き、アプローチ滑走溝７を均一に形成するすることがで
きない。すなわち、残雪でガイドレール２、２に凹凸が
でると、回転カッタ６による溝切りの溝深さや溝仕上げ
が全長に亘って均質が行われず溝形成の精度が落ちるこ
とから、ガイドレール２、２上の残雪をできる限り取り
除くものである。The maintenance machine main body 4 includes wheels 13, 13, 13,
At 13, the cable 3 is driven on the guide rails 2 and 2 to move from the hill side to the valley side and from the valley side to the hill side. Before and after the wheels 13, 13, 13, 13, snow removal plates 31, 31, 31, 31 for removing snow on the guide rails 2, 2 are provided.
Are arranged respectively. If residual snow or cut snow powder remains on the guide rails 2, steps are formed in the approach grooves 7, and the approach sliding grooves 7 cannot be formed uniformly. That is, if the guide rails 2 and 2 are uneven due to the remaining snow, the groove depth and the groove finish by the rotary cutter 6 are not uniform over the entire length, and the accuracy of the groove formation is reduced. It removes the remaining snow as much as possible.
【００４５】次に本発明のスキージャンプ台のアプロー
チ滑走面の溝仕上方法を作用とともに説明する。Next, the method of finishing the groove of the approach sliding surface of the ski jumping platform according to the present invention will be described together with its operation.
【００４６】整備機本体４のレール２上の走行は、図１
に示すように、配置したワイヤーロープ３と整備機本体
４の四隅に設けたプーリー３７、３７及びプーリー３
８、３８を介し、ウインチ１９によりケーブル３を駆動
することにより行う。ケーブル３はジャンブ台山側３５
と、ジャンブ台谷側３６にそれぞれ固定され、ウエイト
１８によってワイヤロープ３の弛みを調整する。The traveling of the maintenance machine main body 4 on the rail 2 is shown in FIG.
As shown in the figure, pulleys 37, 37 and pulley 3 provided at four corners of
The driving is performed by driving the cable 3 by the winch 19 through 8, 38. Cable 3 35
And the slack of the wire rope 3 is adjusted by the weight 18.
【００４７】スキージャンプ台のアプローチ滑走面１の
両側に２本の平行なガイドレール２、２を配設し、ガイ
ドレール２、２上に回転カッタ６と除・圧雪板５並びに
溝シェーバホルダ８を具備した整備機本体４を車輪１
３、１３、１３、１３を介して載置する。この整備機本
体４をケーブル３の駆動で、山側から谷側へ、谷側から
山側へと移動させて昇降を行う。整備機本体４の下端部
谷側に配置されている除・圧雪板５を下降させると共に
上端部山側の回転カッタ６並びに下端部の溝シェーバホ
ルダ８を上昇させた状態で整備機本体４をスキージャン
プ台の山側頂上に位置させる。Two parallel guide rails 2, 2 are arranged on both sides of the approach slide surface 1 of the ski jump table, and on the guide rails 2, a rotary cutter 6, a snow removing plate 5 and a groove shaver holder 8 are provided. The maintenance machine main body 4 equipped with
It is placed via 3, 13, 13, 13. The maintenance machine body 4 is moved by the cable 3 to move up and down by moving from the mountain side to the valley side and from the valley side to the mountain side. The maintenance machine body 4 is skied in a state where the snow removing / pressing plate 5 arranged on the lower end valley side of the maintenance machine body 4 is lowered and the rotary cutter 6 on the upper end mountain side and the groove shaver holder 8 at the lower end are raised. It is located at the top of the jump table.
【００４８】雪質の変化に対応して除・圧雪板５の角度
をストッパピン差込穴５１ａ、５１ａ…の位置を選択し
変える。例えば、図７（ａ）に示すように、春先のザラ
メ雪のときは、ストッパピン差込穴４７の位置を外側も
のを使用して、カッテングエッジ５ｂをたて、圧雪力を
低く押さえた状態とし、また図７（ｂ）に示すように、
新雪およびアイスバーンの状態の時は、ストッパピン差
込穴４７の位置を内側ものを使用して、圧雪力を付与し
た状態とする。この状態で、スキージャンプ台のアプロ
ーチ滑走面１に沿って整備機本体４をガイドレール２、
２に沿って下降させつつ、滑走面１にある過剰の積雪を
押出しとカッテングで、アプローチ滑走面１から積雪を
除雪すると共に残りの滑走面１にある雪を押え板５ｃで
加圧平坦化しながらアプローチ滑走面１の谷側まで下降
させる。整備機本体４の下降速度は、３〜１０ｍ／分程
度、好ましくは、４〜７．５ｍ／分程度が好適である。The position of the stopper pin insertion holes 51a, 51a... Is selected and changed according to the change in the snow quality. For example, as shown in FIG. 7 (a), when the snow is snowy in the early spring, the position of the stopper pin insertion hole 47 is set to the outside, and the cutting edge 5b is set up to suppress the snow compaction force. And, as shown in FIG.
In the state of fresh snow and ice burn, the position of the stopper pin insertion hole 47 is set to a state in which snow compaction force is applied by using the inside. In this state, the maintenance machine main body 4 is moved along the approach running surface 1 of the ski jumping platform,
While descending along 2, the excess snow on the sliding surface 1 is extruded and cut to remove the snow from the approach sliding surface 1, and the remaining snow on the sliding surface 1 is flattened by pressing with the presser plate 5c. Lower to the valley side of approach runway 1. The descending speed of the maintenance machine main body 4 is about 3 to 10 m / min, preferably about 4 to 7.5 m / min.
【００４９】整備機本体４がスキージャンプ台のアプロ
ーチ滑走面１の谷側下端部に到達したとき、整備機本体
４の下端部側谷側の除・圧雪板５を上昇させると共に上
端部山側の回転カッタ６並びに下端部谷側の溝シェーバ
ホルダ８を下降させる。この状態で、ケーブル３を駆動
装置１９の逆駆動させると、整備機本体４はガイドレー
ル２、２に沿ってゆっくり上昇し、回転カッタ６でアプ
ローチ溝切りを行いアプローチ溝７を形設する。続い
て、回転カッタの形設した溝７を溝シェーバホルダ８で
溝側面および溝上側端部を圧雪成形すると共にアプロー
チ溝底部７ｃを溝シェーバ１３でザラメ状に溝仕上げ
る。When the maintenance machine main body 4 reaches the valley side lower end of the approach sliding surface 1 of the ski jumping platform, the lowering / snow plate 5 on the lower end side valley side of the maintenance machine main body 4 is raised, and the upper end mountain side is raised. The rotary cutter 6 and the groove shaver holder 8 on the lower end valley side are lowered. In this state, when the cable 3 is reversely driven by the driving device 19, the maintenance machine main body 4 slowly rises along the guide rails 2 and 2 and forms an approach groove 7 by cutting the approach groove with the rotary cutter 6. Subsequently, the groove 7 formed by the rotary cutter is formed with a groove shaver holder 8 on the groove side surface and the upper end of the groove, and the approach groove bottom 7c is groove-finished with a groove shaver 13 in a rough shape.
【００５０】回転カッタ６で形設されたアプローチ溝７
は、ホルダ１６と除雪板３１で切削雪粉が除去される
が、図１３（ａ）に示すように、形設されたアプローチ
溝７には切削雪粉の残りが溝肩７ａ、溝隅部７ｂとして
残されている。また、形設されたアプローチ溝７の底７
ｃは必ずしもアプローチ溝７としては良好ではない。そ
こで、図１３（ｂ）に示すように、回転カッタ６と進行
方向が同一線上で、整備機本体４の下端部側に、回転カ
ッタ６の形設されたアプローチ溝７より幅広でソリ状に
形成された溝シェーバホルダ８と、溝シェーバホルダ８
の下面に着脱自在に取付けた溝シェーバ９で、溝肩７ａ
と溝隅部７ｂを押圧して、溝肩７ａにアールを付け、溝
７の隅部７ｂを平坦にする。溝シェーバホルダ８と溝シ
ェーバ９の押圧と擦りによって生じた雪粉は排雪板１２
ｋで受取られる。溝シェーバ９は、図１３（ｃ）に示す
ように、溝底７ｃとの接触面を格子焼結体に刻設したも
のを断面鋸歯状に形成し、押圧しながら擦って、溝底７
ｃをザラメ雪状に仕上げる。溝切りの際の整備機本体４
の上昇速度は、下降速度より遅く、２〜６ｍ／分程度、
好ましくは、３〜４ｍ／分程度が好適である。The approach groove 7 formed by the rotary cutter 6
13A, the cutting snow powder is removed by the holder 16 and the snow removing plate 31. As shown in FIG. 13A, the remaining of the cutting snow powder is formed in the formed approach groove 7 by the groove shoulder 7a and the corner of the groove. 7b. In addition, the bottom 7 of the formed approach groove 7
c is not always good as the approach groove 7. Therefore, as shown in FIG. 13B, the traveling direction is the same as that of the rotary cutter 6, and the lower end side of the maintenance machine main body 4 is wider and sled than the approach groove 7 formed with the rotary cutter 6. The formed groove shaver holder 8 and the groove shaver holder 8
A groove shaver 9 detachably attached to the lower surface of the
Then, the corner 7b of the groove is pressed to make the groove shoulder 7a round, and the corner 7b of the groove 7 is flattened. The snow powder generated by pressing and rubbing of the groove shaver holder 8 and the groove shaver 9 is
k. As shown in FIG. 13 (c), the groove shaver 9 is formed by cutting the surface in contact with the groove bottom 7c in a lattice sintered body into a sawtooth cross section, and rubbing while pressing.
Finish c in a snow-like shape. Maintenance machine body 4 for grooving
The ascending speed is lower than the descending speed, about 2 to 6 m / min,
Preferably, about 3 to 4 m / min is suitable.
【００５１】溝シェーバホルダ８の間隔は、競技用は一
定幅に規格化されているが、ジュニア、シニア等の年齢
層に合わせて適宜変更調整できる。The interval between the groove shaver holders 8 is standardized to a constant width for competition use, but can be changed and adjusted as appropriate according to the age group such as junior and senior.
【００５２】このように、溝シェーバ９を取付けた溝シ
ェーバホルダ８で回転カッタ６の形設溝７を仕上げるの
で、従来の手作業では行えなかった、アプローチ溝７側
面の強度の確保、脱落スキーの復元を容易にする溝断面
形状の形設が可能となる。さらにアプローチ溝底部７ｃ
を格子焼結体に刻設したものを断面鋸歯状に形成した溝
シェーバ９で押圧して擦ってザラメ雪状に形成したの
で、滑走性能の向上が一段と図れた。これらにより競技
中のスキーのブレ、振動、脱線、滑走性の不良などによ
る記録への悪影響の軽減を可能にした。また、実施例の
溝仕上げ作業はアプローチ滑走面１の整備作業と同時に
実施されるもので実質的には溝仕上げのみに要する作業
時間は不要となる。As described above, since the groove 7 of the rotary cutter 6 is finished by the groove shaver holder 8 having the groove shaver 9 mounted thereon, the strength of the side surface of the approach groove 7 can be secured and the falling ski cannot be performed by the conventional manual operation. Of the groove cross-sectional shape that facilitates restoration of the groove. Furthermore, approach groove bottom 7c
Was cut into a lattice sintered body and pressed and rubbed with a groove shaver 9 formed in a sawtooth cross section to form a snow-like shape, so that the sliding performance was further improved. As a result, it was possible to reduce the adverse effects on the record due to ski shake, vibration, derailment, and poor glide during the competition. Further, the groove finishing work of the embodiment is performed at the same time as the maintenance work of the approach sliding surface 1, so that the work time required only for the groove finishing is substantially unnecessary.
【００５３】[0053]
【発明の効果】本発明のスキージャンプ台のアプローチ
滑走面の溝仕上装置および溝仕上方法によれば、アプロ
ーチ滑走面１の整備及び滑走溝の整備には多大な労力と
時間を要していたアプローチ滑走面１の整備が短時間か
つ正確に行える。According to the groove finishing apparatus and the groove finishing method for the approach sliding surface of the ski jumping platform of the present invention, the maintenance of the approach sliding surface 1 and the maintenance of the sliding groove require a great deal of labor and time. Maintenance of the approach running surface 1 can be performed accurately in a short time.
【００５４】整備機本体を谷側に下降させる時に、除・
圧雪板の角度を変えることにより、新雪、乾雪、湿雪あ
るいはザラメ雪化した春先の雪等、いずれの雪質でも均
質にアプローチ滑走面１を除・圧雪するこができる。When the maintenance machine body is lowered to the valley side,
By changing the angle of the snow compact, the approach run surface 1 can be uniformly removed and snow compacted regardless of the snow quality, such as fresh snow, dry snow, wet snow, or snow in early spring.
【００５５】また、回転カッタの溝切りで、プローチ滑
走溝全線に亘り均質で一定かつ安定した滑走溝を形設す
ることができる。しかも、短時間（２時間２名）に少な
い人数で、均一なアプローチ滑走面と均一深さで直真
性、均平性の優れた精度の高いアプローチ滑走溝を形成
することができる。Further, by the groove cutting of the rotary cutter, it is possible to form a uniform, stable and stable sliding groove over the entire approach sliding groove. In addition, it is possible to form a highly accurate approach sliding groove having excellent straightness and levelness with a uniform approach sliding surface and a uniform depth with a small number of people in a short time (two hours and two persons).
【００５６】さらに、溝切り後に、溝シェーバホルダー
を取付けたので、従来の手作業では行えなかった、アプ
ローチ滑走溝側面の強度の確保、脱落スキーの復元を容
易にする溝断面形状の形設が可能となった。Further, since the groove shaver holder was attached after the groove cutting, the groove cross-sectional shape for securing the strength of the side surface of the approach sliding groove and for facilitating the restoration of the falling ski, which could not be performed by the conventional manual work, was provided. It has become possible.
【００５７】さらにまた、溝シェーバホルダーと共に溝
シェーバで、アプローチ滑走溝底部にザラメ雪状に形成
したので、滑走性能の向上が図れた。Further, since the groove shaver is formed with a groove shaver together with the groove shaver holder at the bottom of the approach sliding groove in a snow-like shape, the sliding performance is improved.
【００５８】これらにより競技中のスキーのブレ、振
動、脱線、滑走性の不良などによる記録への悪影響の軽
減を可能にした。また、本作業はアプローチ滑走面１の
整備作業と同時に実施されるもので実質的には溝仕上げ
のみに要する作業時間は不要となる。As a result, it is possible to reduce the adverse effects on the recording due to the ski shake, vibration, derailment, and poor glide property during the competition. In addition, this work is performed simultaneously with the maintenance work of the approach runway surface 1, so that substantially no work time required only for the groove finishing is required.
【図１】本発明に係るスキージャンプ台のアプローチ滑
走面整備装置の一実施例を示す斜視図FIG. 1 is a perspective view showing an embodiment of an apparatus for maintaining an approach sliding surface of a ski jumping stand according to the present invention.
【図２】本発明のアプローチ滑走面整備装置の斜視図FIG. 2 is a perspective view of the approach running surface maintenance device of the present invention.
【図３】本発明のアプローチ滑走面整備装置の一部切欠
いた斜視図FIG. 3 is a partially cutaway perspective view of the approach running surface maintenance device of the present invention.
【図４】本発明のアプローチ滑走面整備装置の上面図FIG. 4 is a top view of the approach running surface maintenance device of the present invention.
【図５】本発明のアプローチ滑走面整備装置の上面図FIG. 5 is a top view of the approach running surface maintenance device of the present invention.
【図６】本発明の圧・除雪板の側面図FIG. 6 is a side view of the pressure and snow removing plate of the present invention.
【図７】本発明の圧・除雪板の変化を示す側面図FIG. 7 is a side view showing the change of the pressure / snow-removing plate of the present invention.
【図８】本発明のアプローチ溝仕上げ装置の側面図FIG. 8 is a side view of the approach groove finishing device of the present invention.
【図９】本発明のアプローチ溝仕上げ装置の一部切欠い
た正面図FIG. 9 is a partially cutaway front view of the approach groove finishing device of the present invention.
【図１０】本発明の溝シェーバホルダと溝シェーバの底
面図FIG. 10 is a bottom view of the groove shaver holder and the groove shaver of the present invention.
【図１１】本発明の溝シェーバの底面の拡大斜視図FIG. 11 is an enlarged perspective view of the bottom surface of the groove shaver of the present invention.
【図１２】図１０のＡ−Ａ線に沿う拡大断面図12 is an enlarged sectional view taken along line AA of FIG.
【図１３】本発明のアプローチ溝の説明図で、（ａ）溝
仕上げ前の状態図、（ｂ）溝仕上げの状況図、（ｃ）溝
仕上げ後の溝状態図である。FIG. 13 is an explanatory view of an approach groove according to the present invention, wherein (a) is a state diagram before the groove finish, (b) is a state diagram of the groove finish, and (c) is a groove state diagram after the groove finish.
Claims (15)
両側に平行に配設されたガイドレール上を該レールに沿
って張り渡されたケーブルと、 前記ガイドレール上を走行する整備機本体と、 該整備機本体の谷側下端部に上下動可能に装着され前記
アプローチ滑走面にある過剰の積雪を除雪すると共に残
りの該アプローチ滑走面にある雪を加圧平坦化する除・
圧雪板と、 前記整備機本体の山側上端部に搭載され前記アプローチ
滑走面の加圧平坦化された該アプローチ滑走面雪面に沿
って平行に２本のアプローチ溝を形設する回転カッタ
と、前記整備機本体に搭載され前記ケーブルに係合して
前記整備機本体を前記アプローチ滑走面にに沿って上下
動させる駆動装置と、前記回転カッタを駆動する動力装
置を備え、前記ケーブルによって前記整備機本体を上下
動しながら前記アプローチ滑走面を整備するアプローチ
滑走面整備装置。1. A cable stretched along guide rails arranged in parallel on both sides of an approach sliding surface of a ski jumping platform, a maintenance machine main body running on the guide rails, A removal device that is vertically movably attached to the lower end of the valley side of the maintenance machine body to remove excess snow on the approach running surface and pressurize and flatten the remaining snow on the approach running surface.
A snow cutter, and a rotary cutter mounted on the mountain-side upper end of the maintenance machine main body and forming two approach grooves parallel to the approach runway snow surface that is flattened by pressing the approach runway surface; A driving device mounted on the maintenance machine main body and engaged with the cable to move the maintenance machine main body up and down along the approach sliding surface; and a power device for driving the rotary cutter, wherein the maintenance is performed by the cable. An approach runway maintenance device for maintaining the approach runway while moving the machine body up and down.
グエッジと押え板が取付けられ、該除・圧雪板の角度を
変えることによってカッテングエッジと押え板の押圧を
調整する角度調節装置を具備したことを特徴とする請求
項１記載のスキージャンプ台のアプローチ滑走面整備装
置。2. An angle adjusting device, wherein a cutting edge and a holding plate are attached to a lower end edge of the snow removing / pressing plate, and the pressing of the cutting edge and the holding plate is adjusted by changing an angle of the cutting / pressing plate. The apparatus according to claim 1, further comprising a ski jumping platform.
プローチ滑走面に対して昇降する昇降装置を具備したこ
とを特徴とする請求項１〜２のいずれか１項記載のスキ
ージャンプ台のアプローチ滑走面整備装置。3. The ski jumping platform according to claim 1, wherein the snow removing plate and the rotary cutter are provided with a lifting device that moves up and down with respect to an approach sliding surface. Approach running surface maintenance device.
レール上の雪を除雪する除雪板が配設されていることを
特徴とする請求項１〜３のいずれか１項記載のスキージ
ャンプ台のアプローチ滑走面整備装置。4. The ski jump according to claim 1, wherein a snow removing plate for removing snow on a guide rail is provided in front of and behind wheels of the maintenance machine main body. Approach approach surface maintenance device.
両側にガイドレールを配設し、該ガイドレール上に、前
記スキージャンプ台のアプローチ滑走面に、前記滑走面
にある過剰の積雪を除雪するとともに残りの滑走面にあ
る雪を加圧平坦化する除・圧雪板と前記加圧平坦化され
た雪面に２本のスキー滑走溝を形成する回転カッタとを
備えた整備装置を走行させて、前記アプローチ滑走面を
山側から谷側に下降する際に、除・圧雪板を下降させと
共に回転カッタを上昇させて前記アプローチ滑走面の雪
を除・圧雪し、上昇させる時には前記除・圧雪板を上昇
させと共に回転カッタを下降させて除圧雪面にスキー滑
走溝を形成することを特徴とするスキージャンプ台のア
プローチ滑走面整備方法。5. A guide rail is provided on both sides of an approach sliding surface of a ski jumping platform, on which the excess snow on the approaching sliding surface of the ski jumping platform is removed. Running a maintenance device including a snow removing / pressing plate for pressurizing and flattening snow on the remaining sliding surface and a rotary cutter for forming two ski sliding grooves on the pressurized and flattened snow surface, When descending the approach sliding surface from the mountain side to the valley side, remove the snow on the approach sliding surface by lowering the snow removing plate and raising the rotary cutter and removing the snow on the approach sliding surface, and when lifting, remove the snow removing plate. A method for maintaining an approach skiing surface of a ski jumping stand, comprising raising a rotating cutter and lowering a rotating cutter to form a ski skiing groove on a depressurized snow surface.
ってカッテングエッジと押え板の押圧を調整することを
特徴とする請求項５記載のスキージャンプ台のアプロー
チ滑走面整備方法。6. The method according to claim 5, wherein the pressing of the cutting edge and the pressing plate is adjusted by changing the angle of the snow removing / pressing plate.
両側に平行に配設されたガイドレール上を該レールに沿
って張り渡されたケーブルと、 前記ガイドレール上を走行する整備機本体と、 該整備機本体の谷側下端部に上下動可能に装着され前記
アプローチ滑走面にある過剰の積雪を除雪すると共に残
りの該アプローチ滑走面にある雪を加圧平坦化する除・
圧雪板と、 前記整備機本体の山側上端部に搭載され前記アプローチ
滑走面の加圧平坦化された該アプローチ滑走面雪面に沿
って平行に２本のアプローチ溝を形設する回転カッタと
を備え、前記ケーブルによって前記整備機本体を上下動
しながら前記アプローチ滑走面を整備するアプローチ滑
走面整備装置であって、 前記回転カッタと進行方向が同一線上で、前記整備機本
体の下端部側に上下動自在に取付けられ、前記回転カッ
タ形設溝より幅広でソリ状に形成された溝シェーバホル
ダと、 該溝シェーバホルダの下面に固定され該回転カッタ形設
溝と略同一幅で雪との接触面を格子状に刻設したものを
断面鋸歯状に形成した溝シェーバとから構成されること
を特徴とするスキージャンプ台のアプローチ滑走面の溝
仕上装置。7. A cable stretched along guide rails arranged in parallel on both sides of an approach run surface of a ski jumping platform, a maintenance machine main body running on the guide rails, A removal device that is vertically movably attached to the lower end of the valley side of the maintenance machine body to remove excess snow on the approach running surface and pressurize and flatten the remaining snow on the approach running surface.
A snow cutter, and a rotary cutter mounted on the mountain-side upper end of the maintenance machine main body and having two approach grooves formed in parallel with the approach runway snow surface where the approach runway is pressurized and flattened. An approach sliding surface maintenance device for maintaining the approach sliding surface while vertically moving the maintenance machine main body by the cable, wherein the traveling direction is the same as that of the rotary cutter, and a lower end side of the maintenance machine main body. A groove shaver holder which is mounted to be movable up and down and is formed in a sled shape wider and wider than the rotary cutter forming groove; and a snow shaver fixed to the lower surface of the groove shaver holder and having substantially the same width as the rotary cutter forming groove. A groove finishing device for an approach sliding surface of a ski jumping table, comprising: a groove shaver having a contact surface cut in a lattice shape and having a saw-tooth cross section.
体と前記除・圧雪板の間で前記整備機本体の下端部に上
下動自在に取付けられたことを特徴とする請求項７記載
のスキージャンプ台のアプローチ滑走面の溝仕上装置。8. The ski jump platform according to claim 7, wherein the groove shaver holder is vertically movably attached to a lower end of the maintenance machine main body between the maintenance machine main body and the snow removing / snowplate. Groove finishing device for approach runway.
前記溝シェーバホルダは、前記アプローチ滑走面雪面に
対して上下動する昇降装置を具備したことを特徴とする
請求項７〜８のいずれか１項記載のスキージャンプ台の
アプローチ滑走面の溝仕上装置。9. The apparatus according to claim 7, wherein the snow removing plate, the rotating cutter, and the groove shaver holder are provided with an elevating device that moves up and down with respect to the approach sliding surface snow surface. The device for finishing a groove on an approach run surface of a ski jumping platform according to claim 1.
上を移動し、該車輪の前後にレール上の雪を除雪する除
雪板が配設されていることを特徴とする請求項７〜９の
いずれか１項記載のスキージャンプ台のアプローチ滑走
面の溝仕上装置。10. The maintenance machine body according to claim 7, wherein said maintenance machine main body is moved on guide rails by wheels, and snow removal plates for removing snow on the rails are provided before and after said wheels. A groove finishing device for an approach sliding surface of a ski jumping platform according to any one of the preceding claims.
ングエッジと押え板が取付けられ、該除・圧雪板の角度
を変えることによってカッテングエッジと押え板の押圧
を調整する調整装置を具備したことを特徴とする請求項
７〜１０のいずれか１項記載のスキージャンプ台のアプ
ローチ滑走面整備装置。11. A cutting edge and a holding plate are attached to a lower end edge of the snow removing / pressing plate, and an adjusting device for adjusting a pressing force of the cutting edge and the holding plate by changing an angle of the snow removing / pressing plate. The approach sliding surface maintenance device for a ski jumping platform according to any one of claims 7 to 10, wherein:
ングエッジと押え板が取付けられ、該除・圧雪板の角度
を変えることによってカッテングエッジと押え板の押圧
を調整する角度調節装置を具備したことを特徴とする請
求項７〜１１のいずれか１項記載のスキージャンプ台の
アプローチ滑走面整備装置。12. An angle adjusting device, wherein a cutting edge and a holding plate are attached to a lower end edge of the snow removing / pressing plate, and the pressing of the cutting edge and the holding plate is adjusted by changing the angle of the snow removing / pressing plate. The apparatus according to any one of claims 7 to 11, wherein the apparatus is provided with an approach sliding surface for a ski jumping platform.
の両側に２本の平行なガイドレールを配設し、該ガイド
レール上に回転カッタと除・圧雪板並びに溝シェーバホ
ルダを具備した整備機本体をケーブルで駆動させるにあ
たり、前記整備機本体の下端部側に配置されている前記
除・圧雪板を下降させると共に上端部の前記回転カッタ
並びに下端部の前記溝シェーバホルダを上昇させた状態
で前記整備機本体をスキージャンプ台の山側頂上に位置
させた後、 前記スキージャンプ台のアプローチ滑走面に沿って前記
整備機本体をガイドレールに沿って下降させつつ、前記
アプローチ滑走面にある過剰の積雪を除雪すると共に残
りの滑走面にある雪を加圧平坦化しながらアプローチ滑
走面谷側まで下降させ、前記整備機本体が前記アプロー
チ滑走面谷側下端部に到達したとき、前記整備機本体の
下端部の除・圧雪板を上昇させると共に上端部の回転カ
ッタ並びに下端部の溝シェーバホルダを下降させ、前記
ガイドロープを逆駆動させて、前記回転カッタの駆動で
前記アプローチ滑走面に沿ってアプローチ溝切りを行
い、続いて該回転カッタの形設溝を溝シェーバホルダで
溝肩部および溝底隅部を圧雪成形すると共にアプローチ
溝底部を溝シェーバでザラメ雪状に溝仕上げことを特徴
とするスキージャンプ台のアプローチ滑走面の溝仕上方
法。13. A maintenance machine body having two parallel guide rails on both sides of an approach sliding surface of a ski jumping stand, and a rotary cutter, a snow removing / snowplate and a groove shaver holder on the guide rails. When driven by a cable, the maintenance / removal work is performed in a state where the snow removing / pressing plate disposed on the lower end side of the maintenance machine body is lowered and the rotary cutter at the upper end and the groove shaver holder at the lower end are raised. After the machine body is positioned on the mountain side top of the ski jumping platform, while the maintenance machine body is lowered along the guide rails along the approaching sliding surface of the ski jumping platform, excess snow on the approaching sliding surface is removed. At the same time as removing snow, the snow on the remaining running surface is lowered to the approach running surface valley side while flattening the snow under pressure. When reaching the valley side lower end, raise the rotary cutter of the lower end of the maintenance machine body, lower the rotary cutter at the upper end and the groove shaver holder at the lower end, and reversely drive the guide rope, The approach groove is cut along the approach sliding surface by driving the rotary cutter, and then the groove formed in the rotary cutter is subjected to snow shaping at the groove shoulder and the groove bottom corner with a groove shaver holder, and the approach groove bottom is formed. A method of finishing a groove on an approach sliding surface of a ski jumping stand, characterized in that a groove shaver finishes the groove in a snow-like shape.
で、回転カッタ形設溝の残雪を除雪しつつ、溝シェーバ
ホルダと溝シェーバで溝仕上げすることを特徴とする請
求項１３記載のスキージャンプ台のアプローチ滑走面の
溝仕上方法。14. The groove removing machine according to claim 13, wherein the snow removing plates before and after the wheels of the maintenance machine body remove the remaining snow of the rotary cutter-shaped groove, and finish the groove with a groove shaver holder and a groove shaver. How to finish the groove on the approach run surface of the ski jump.
よってカッテングエッジと押え板の押圧を調整すること
を特徴とする請求項１１〜１２のいずれか１記載のスキ
ージャンプ台のアプローチ滑走面整備方法。15. The maintenance of an approach run surface of a ski jumping platform according to claim 11, wherein the pressing of the cutting edge and the pressing plate is adjusted by changing the angle of the snow removing / pressing plate. Method.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05519996A JP3195225B2 (en) | 1995-03-30 | 1996-03-12 | Apparatus for maintaining an approach runway of a ski jumping platform, apparatus for finishing a groove on an approach runway, method for adjusting an approach runway, and method for finishing a groove |
| EP96104745A EP0735196B1 (en) | 1995-03-30 | 1996-03-26 | In line sliding surface forming apparatus for schanze, groove forming apparatus for in line sliding surface, in line sliding surface adjusting method, and groove forming method |
| DE69613615T DE69613615T2 (en) | 1995-03-30 | 1996-03-26 | Track shaping device for ski jump, and method for aligning and shaping the track |
| AT96104745T ATE202815T1 (en) | 1995-03-30 | 1996-03-26 | TRACK SHAPING DEVICE FOR SKI JUMP AND METHOD FOR ALIGNING AND SHAPING THE TRACK |
| KR1019960009439A KR0152423B1 (en) | 1995-03-30 | 1996-03-30 | In line sliding surface forming apparatus for schanze, groove forming apparatus for in line sliding surface, in line |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7270395 | 1995-03-30 | ||
| JP7-292588 | 1995-11-10 | ||
| JP29258895 | 1995-11-10 | ||
| JP7-72703 | 1995-11-10 | ||
| JP05519996A JP3195225B2 (en) | 1995-03-30 | 1996-03-12 | Apparatus for maintaining an approach runway of a ski jumping platform, apparatus for finishing a groove on an approach runway, method for adjusting an approach runway, and method for finishing a groove |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09189015A JPH09189015A (en) | 1997-07-22 |
| JP3195225B2 true JP3195225B2 (en) | 2001-08-06 |
Family
ID=27295519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05519996A Expired - Fee Related JP3195225B2 (en) | 1995-03-30 | 1996-03-12 | Apparatus for maintaining an approach runway of a ski jumping platform, apparatus for finishing a groove on an approach runway, method for adjusting an approach runway, and method for finishing a groove |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0735196B1 (en) |
| JP (1) | JP3195225B2 (en) |
| KR (1) | KR0152423B1 (en) |
| AT (1) | ATE202815T1 (en) |
| DE (1) | DE69613615T2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007038383A1 (en) * | 2007-08-14 | 2009-02-26 | Bernhard Freund | Ski jump-inrun track processing device for use in snow and/or ice filled area, has rail system for driving carriage over ski jump-inrun track formed with track module, where system is attached at track module and includes guide rails |
| DE102013018409B3 (en) * | 2013-10-25 | 2014-12-31 | Peter Riedel Patent UG (haftungsbeschränkt) | A run-track processing system and method for preparing a run-in track for the winter jump operation |
| KR101579576B1 (en) | 2014-06-17 | 2015-12-22 | 주식회사 위저드 | Ski jump simulator |
| CN110952491A (en) * | 2019-12-27 | 2020-04-03 | 孙云山 | Snow pressing equipment and snow pressing vehicle |
| CN112095538B (en) * | 2020-09-17 | 2022-05-27 | 程光南 | Ice surface repairing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3692119A (en) * | 1971-04-23 | 1972-09-19 | Jasper J Tucker | Winch carrying snow grooming vehicle supported by skids and powered by an anchored drawline |
| DE3206976A1 (en) * | 1981-03-20 | 1982-09-30 | Kempf + Co AG Förder- und Lagertechnik, 9100 Herisau | Cross-country trail device |
-
1996
- 1996-03-12 JP JP05519996A patent/JP3195225B2/en not_active Expired - Fee Related
- 1996-03-26 DE DE69613615T patent/DE69613615T2/en not_active Expired - Fee Related
- 1996-03-26 AT AT96104745T patent/ATE202815T1/en not_active IP Right Cessation
- 1996-03-26 EP EP96104745A patent/EP0735196B1/en not_active Expired - Lifetime
- 1996-03-30 KR KR1019960009439A patent/KR0152423B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR960033496A (en) | 1996-10-22 |
| KR0152423B1 (en) | 1998-10-15 |
| EP0735196A1 (en) | 1996-10-02 |
| DE69613615D1 (en) | 2001-08-09 |
| DE69613615T2 (en) | 2002-05-08 |
| EP0735196B1 (en) | 2001-07-04 |
| ATE202815T1 (en) | 2001-07-15 |
| JPH09189015A (en) | 1997-07-22 |
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