JP2016152797A - Lighting device for raising natural turf - Google Patents

Lighting device for raising natural turf Download PDF

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JP2016152797A
JP2016152797A JP2016009387A JP2016009387A JP2016152797A JP 2016152797 A JP2016152797 A JP 2016152797A JP 2016009387 A JP2016009387 A JP 2016009387A JP 2016009387 A JP2016009387 A JP 2016009387A JP 2016152797 A JP2016152797 A JP 2016152797A
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rotation center
center line
frame
caster
movable beam
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弘至 緒方
Hiroshi Ogata
弘至 緒方
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Resonac Holdings Corp
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Showa Denko KK
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/14—Measures for saving energy, e.g. in green houses

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Abstract

PROBLEM TO BE SOLVED: To provide a lighting device for raising natural turf which can easily switch a direction in moving.SOLUTION: A lighting device for raising natural turf has: a main support leg 3 supporting a frame; and casters for moving which are attached to a bottom end of the main support leg 3. Front and rear casters for moving on the left are universal casters 4 whose direction of wheels 4a is freely changed. The universal caster 4 has: a rotary frame 15 rotatable about a perpendicular rotation center line O1; an even number of wheels 4a which are attached to the rotary frame 15 with a gap so as to be freely rotatable about the same horizontal rotation center line O2, and rotate independently of each other. The same number of wheels 4a are severally arranged on both sides of the perpendicular rotation center line O1. The width and the outer diameter of all wheels 4a are equal, and the perpendicular rotation center line O1 is positioned within a range of the outer diameter of the wheel 4a. The wheel 4a on one side and the wheel 4a on the other side of the perpendicular rotation center line O1 are orthogonal to the horizontal rotation center line O2, and in plane symmetry with a flat surface on which the perpendicular rotation center line O1 is positioned is as a symmetrical plane.SELECTED DRAWING: Figure 6

Description

この発明は、たとえばサッカースタジアム、ラグビー競技場、陸上競技場、テニス競技場、野球場などグランドに植えられている天然芝の維持管理に使用される天然芝育成用照明装置に関する。   The present invention relates to a natural turf growing lighting device used for maintenance and management of natural turf planted in the ground such as a soccer stadium, a rugby stadium, an athletic stadium, a tennis stadium, and a baseball stadium.

この明細書および特許請求の範囲において、図１および図３の上下、左右を上下、左右というものとし、図２および図４の下側（図５の右側）を前、これと反対側を後というものとする。   In this specification and claims, the top and bottom, left and right in FIGS. 1 and 3 are referred to as top and bottom, and left and right. The lower side of FIG. 2 and FIG. 4 (right side of FIG. 5) is the front, and the opposite side is the rear. Let's say.

上述した競技場のグランドに植えられている天然芝の維持管理は、従来、養生の際に太陽光により自然に育成することが一般的であった。しかしながら、太陽光による育成には時間がかかるという問題があった。しかも、スタンドや、屋根などの構築物が存在する場合には、長時間日陰となる部分が生じることを避け得ず、日当たりの悪い場所では天然芝の育成が遅くなるとともに、日当たりの良い場所と悪い場所では天然芝に育成むらが生じるという問題があった。   Conventionally, the maintenance of the natural turf planted on the ground of the stadium described above has been generally cultivated naturally by sunlight during curing. However, there is a problem that it takes time to grow with sunlight. In addition, when there are structures such as stands and roofs, it is inevitable that shaded parts will occur for a long time, and natural turf growth will be slow in bad places, and it will be bad and sunny places. There was a problem that uneven nurturing occurred in natural grass at the place.

そこで、天然芝の育成の促進するとともに、育成むらの発生を抑制するために、上述した競技場の天然芝の養生の際に、天然芝に人工光を照射する装置が考えられている(特許文献１参照)。   Therefore, in order to promote the growth of natural turf and to suppress the occurrence of uneven growth, an apparatus that irradiates artificial turf to natural turf during the above-mentioned natural turf curing of the stadium is considered (patent) Reference 1).

特許文献１記載の装置は、平面から見て方形の水平状フレームと、フレームの４つの角部に下方突出状に設けられ、かつフレームを支持する４つの支持脚と、支持脚の下端に取り付けられ、かつ同方向に回転するとともに向きが不変の車輪を有するキャスタと、フレームに対して固定状に設けられた複数の灯具取付用固定ビームと、灯具取付用固定ビームに取り付けられた複数の灯具を備えており、灯具取付用固定ビームに取り付けられた灯具から天然芝に人工光が照射されるようになっている。特許文献１記載の装置は、天然芝に人工光を照射する必要がない場合には収納庫に収納され、天然芝に人工光を照射する場合だけに、グランドの広さに応じた必要数の装置が天然芝上に配置されて用いられるものであり、支持脚下端のキャスタを利用して収納庫と天然芝上との間で移動させられるようになっている。   The device described in Patent Document 1 is attached to the lower end of a support frame, a horizontal frame that is rectangular when viewed from above, four support legs that are provided in a downward projecting manner at four corners of the frame, and support the frame. Casters having wheels that rotate in the same direction and have the same orientation, a plurality of lamp mounting fixed beams fixed to the frame, and a plurality of lamps mounted on the lamp mounting fixed beams The natural turf is irradiated with artificial light from a lamp attached to the fixed beam for attaching the lamp. The device described in Patent Document 1 is stored in a storage case when it is not necessary to irradiate natural turf with artificial light, and only when the natural turf is irradiated with artificial light, the necessary number of devices according to the size of the ground is required. The apparatus is used by being placed on the natural turf, and can be moved between the storage and the natural turf using a caster at the lower end of the support leg.

しかしながら、特許文献１記載の装置を、たとえばサッカースタジアムのグランドのような大規模グランドの天然芝の育成に使用する場合、装置の移動時の方向転換作業が面倒であるという問題がある。   However, when the apparatus described in Patent Document 1 is used for growing natural grass on a large-scale ground such as a soccer stadium ground, for example, there is a problem that the direction changing operation when the apparatus is moved is troublesome.

米国特許出願公開第２００１／００３５４６８号明細書US Patent Application Publication No. 2001/0035468

この発明の目的は、上記問題を解決し、特許文献１記載の装置に比べて移動時の方向転換作業が容易である天然芝育成用照明装置を提供することにある。   An object of the present invention is to solve the above problems and provide a lighting device for growing natural turf that is easier to change direction when moving compared to the device described in Patent Document 1.

本発明は、上記目的を達成するために以下の態様からなる。   In order to achieve the above object, the present invention comprises the following aspects.

1)フレームと、フレームを支持する３以上の支持脚と、支持脚の下端に取り付けられた移動用キャスタと、フレームに設けられた灯具取付部と、灯具取付部に取り付けられた灯具とを備えた天然芝育成用照明装置であって、
少なくとも１つの移動用キャスタが車輪の向きが自在に変わる自在キャスタであり、当該自在キャスタが、支持脚の下端に設けられ、かつ垂直回転中心線の周りに回転しうる回転枠と、回転枠に、同一水平回転中心線の周りに回転自在となるように間隔をおいて取り付けられ、かつ互いに独立して回転する偶数個の車輪とを有し、前記回転枠の回転中心である前記垂直回転中心線の両側にそれぞれ同数の車輪が配置され、すべての車輪の幅および外径が等しくなっており、前記回転枠の回転中心である前記垂直回転中心線が車輪の外径の範囲内に位置し、前記垂直回転中心線の片側の車輪と他側の車輪とが、前記水平回転中心線と直交するとともに前記垂直回転中心線が位置する平面を対称面として面対称となるように配置されている天然芝育成用照明装置。 1) A frame, three or more support legs for supporting the frame, a moving caster attached to the lower end of the support leg, a lamp attachment part provided on the frame, and a lamp attached to the lamp attachment part A natural turf growing lighting device,
At least one moving caster is a free caster in which the direction of a wheel can be freely changed. The free caster is provided at a lower end of a support leg, and can be rotated around a vertical rotation center line. The vertical rotation center which is an even number of wheels which are attached at intervals so as to be rotatable around the same horizontal rotation center line and which rotate independently of each other, and which is the rotation center of the rotating frame The same number of wheels are arranged on both sides of the line, the width and outer diameter of all the wheels are equal, and the vertical rotation center line, which is the rotation center of the rotating frame, is located within the range of the outer diameter of the wheel. The wheels on one side and the wheels on the other side of the vertical rotation center line are arranged so as to be plane-symmetric with respect to a plane that is orthogonal to the horizontal rotation center line and on which the vertical rotation center line is located. Natural grass Growth for the lighting device.

2)前記自在キャスタの車輪の数が２個であり、前記回転枠の回転中心である前記垂直回転中心線の両側にそれぞれ１個の車輪が配置されている上記1)記載の天然芝用照明装置。   2) The natural grass lighting according to 1), wherein the number of wheels of the universal caster is two, and one wheel is disposed on each side of the vertical rotation center line that is the rotation center of the rotating frame. apparatus.

3)前記自在キャスタの回転枠の回転中心である前記垂直回転中心線が、支持脚における自在キャスタ側の端部の範囲内に位置している上記1)または2)記載の天然芝育成用照明装置。   3) The natural turf growing illumination according to 1) or 2) above, wherein the vertical rotation center line, which is the rotation center of the rotary frame of the universal caster, is located within the range of the end of the support leg on the universal caster side. apparatus.

4)フレームが水平状であるとともに平面から見て方形であり、フレームの４つの角部に、支持脚が設けられ、４つの支持脚のうち少なくとも左側または右側の前後１対の支持脚に、前記自在キャスタが設けられている上記1)〜3)のうちのいずれかに記載の天然芝育成用照明装置。   4) The frame is horizontal and square when viewed from above, and support legs are provided at four corners of the frame, and at least one pair of front and rear support legs on the left or right side of the four support legs, 4. The natural turf growing lighting device according to any one of 1) to 3), wherein the universal caster is provided.

5)フレームに、長手方向が左右方向に向き、かつフレームに対して長手方向に進出・退入自在である少なくとも１つの灯具取付用可動ビームと、長手方向が左右方向に向き、かつフレームに対して固定状である少なくとも１つの灯具取付用固定ビームとが設けられ、灯具が固定ビームおよび可動ビームに取り付けられ、可動ビームの進出方向前端部に、可動ビームの進出時に可動ビームの先端を支持する副支持脚が設けられるとともに、副支持脚の下端に可動ビーム案内用キャスタが取り付けられ、可動ビームの退入時に、副支持脚の可動ビーム案内用キャスタの下端が、支持脚の移動用キャスタの下端よりも上方に位置するようになされている上記1)〜4)のうちのいずれかに記載の天然芝育成用照明装置。   5) At least one lamp mounting movable beam whose longitudinal direction faces the frame in the left-right direction and can move forward and backward in the longitudinal direction with respect to the frame, and whose longitudinal direction faces the frame in the left-right direction. And at least one fixed beam for mounting the lamp, and the lamp is mounted on the fixed beam and the movable beam, and supports the front end of the movable beam at the front end of the movable beam when the movable beam is advanced. A secondary support leg is provided, and a movable beam guide caster is attached to the lower end of the secondary support leg. When the movable beam is retracted, the lower end of the movable beam guide caster of the secondary support leg is connected to the caster for moving the support leg. 5. The natural turf growing lighting device according to any one of 1) to 4), wherein the lighting device is located above the lower end.

6)支持脚の移動用キャスタおよび副支持脚の可動ビーム案内用キャスタが、車輪本体と車輪本体の周囲に嵌められたゴムタイヤとからなる上記5)記載の天然芝育成用照明装置。   6) The natural turf growing lighting device according to 5) above, wherein the supporting leg moving caster and the sub-supporting leg movable beam guiding caster comprise a wheel body and a rubber tire fitted around the wheel body.

上記1)〜6)の天然芝育成用照明装置によれば、少なくとも１つの移動用キャスタが車輪の向きが自在に変わる自在キャスタであり、当該自在キャスタが、支持脚の下端に設けられ、かつ垂直回転中心線の周りに回転しうる回転枠と、回転枠に、同一水平回転中心線の周りに回転自在となるように間隔をおいて取り付けられ、かつ互いに独立して回転する偶数個の車輪とを有し、前記回転枠の回転中心である前記垂直回転中心線の両側にそれぞれ同数の車輪が配置され、すべての車輪の幅および外径が等しくなっており、前記回転枠の回転中心である前記垂直回転中心線が車輪の外径の範囲内に位置し、前記垂直回転中心線の片側の車輪と他側の車輪とが、前記水平回転中心線と直交するとともに前記垂直回転中心線が位置する平面を対称面として面対称となるように配置されているので、装置の移動時の方向転換作業を、自在キャスタの回転枠を前記垂直回転中心線の周りに回転させてすべての車輪の向きを変えることによって、スムーズに行うことができる。また、自在キャスタのすべての車輪が互いに独立して回転するとともに、回転枠の回転中心である前記垂直回転中心線が、車輪の外径の範囲内でかつ両車輪間に位置しているので、装置の移動時の方向転換作業の際の回転半径を小さくすることができる。さらに、自在キャスタが偶数個の車輪を有するので、各車輪から天然芝生に加わる荷重が小さくなり、天然芝の傷みを抑制することができる。   According to the natural turf growing lighting device of 1) to 6) above, at least one moving caster is a free caster in which the direction of the wheel is freely changed, and the free caster is provided at the lower end of the support leg, and A rotating frame that can rotate around the vertical rotation center line, and an even number of wheels that are attached to the rotating frame at intervals so as to be rotatable around the same horizontal rotation center line and rotate independently of each other And the same number of wheels are arranged on both sides of the vertical rotation center line, which is the rotation center of the rotating frame, and the widths and outer diameters of all the wheels are equal, and at the rotation center of the rotating frame, The vertical rotation center line is located within the range of the outer diameter of the wheel, and one wheel and the other wheel of the vertical rotation center line are orthogonal to the horizontal rotation center line and the vertical rotation center line is The plane that is located Are arranged so as to be symmetrical with respect to the plane, so that the direction change operation during the movement of the device is performed by rotating the rotary frame of the free caster around the vertical rotation center line to change the direction of all the wheels, It can be done smoothly. In addition, all the wheels of the free caster rotate independently of each other, and the vertical rotation center line that is the rotation center of the rotating frame is located within the outer diameter range of the wheel and between the two wheels. It is possible to reduce the turning radius during the direction changing operation when the apparatus is moved. Furthermore, since the universal caster has an even number of wheels, the load applied to the natural lawn from each wheel is reduced, and damage to the natural lawn can be suppressed.

上記3)の天然芝育成用照明装置によれば、装置の移動時の方向転換作業を一層スムーズに行うことができるとともに、装置の移動時の方向転換作業の際の回転半径を効果的に小さくすることができる。   According to the lighting device for natural turf cultivation of 3) above, it is possible to perform the direction change work during the movement of the apparatus more smoothly and effectively reduce the turning radius during the direction change work during the movement of the apparatus. can do.

上記5)の天然芝育成用照明装置によれば、天然芝の育成時には、可動ビームをフレームに対して進出させた状態で、可動ビームおよび固定ビームに取り付けられた灯具から天然芝に人工光を照射することができる。したがって、天然芝の育成をむらなく促進することができる。しかも、特許文献１記載の装置に比較して、１つの装置で人工光を照射することができる範囲が広くなり、大規模グランドの天然芝の育成に使用する場合にも使用する装置の数を少なくすることが可能になる。その結果、移動させる装置の数が少なくなって移動作業を比較的簡単に行うことができる。さらに、天然芝に人工光を照射する必要がない場合には、可動ビームをフレームに対して退入させることにより小型化を図ることが可能になるので、個々の装置の移動作業を比較的簡単に行うことができるとともに、競技場の天然芝の育成に必要な全装置を収納庫に収納する際の収納スペースを小さくすることができる。   According to the lighting device for natural turf cultivation of 5) above, when natural turf is cultivated, artificial light is applied to natural turf from a lamp attached to the movable beam and the fixed beam with the movable beam advanced relative to the frame. Can be irradiated. Therefore, the growth of natural turf can be promoted uniformly. Moreover, compared with the device described in Patent Document 1, the range in which artificial light can be irradiated with one device is widened, and the number of devices used even when used to grow natural grass on a large-scale ground is reduced. It becomes possible to reduce. As a result, the number of devices to be moved is reduced and the moving operation can be performed relatively easily. Furthermore, when it is not necessary to irradiate artificial turf to natural turf, it is possible to reduce the size by moving the movable beam with respect to the frame, so that it is relatively easy to move each device. And the storage space for storing all the devices necessary for cultivating the natural turf in the stadium in the storage can be reduced.

また、装置の移動時に可動ビームをフレームに対して退入させた状態では、副支持脚の可動ビーム案内用キャスタの下端が主支持脚の下端よりも上方に位置するので、可動ビームのフレームに対する進出および退入をスムーズに行うことができるとともに、天然芝の傷みを抑制することができる。一方、可動ビームをフレームに対して進出させた状態では、支持脚および副支持脚によって支持されるので、天然芝に人工光を照射する際には装置全体を安定させることができる。   In addition, in a state where the movable beam is retracted with respect to the frame when the apparatus is moved, the lower end of the movable beam guiding caster of the auxiliary support leg is located above the lower end of the main support leg, so Advances and retreats can be performed smoothly, and damage to natural turf can be suppressed. On the other hand, in the state where the movable beam is advanced with respect to the frame, it is supported by the support leg and the sub-support leg, so that the entire apparatus can be stabilized when artificial light is irradiated onto the natural turf.

さらに、照射すべき人工光の光量子束密度や、人工光を照射すべき範囲に応じて、進出位置の他に、可動ビームを退入位置や、進出位置と退入位置との間の中間位置に移動させて人工光を照射することが可能になる。たとえば、サッカースタジアムのゴール前では特に天然芝の傷みが激しくなる傾向にあり、この部分の天然芝の育成の際には、照射すべき人工光の光量子束密度を高くすることが効果的であるが、この場合には、可動ビームを退入位置に移動させて人工光を照射することが好ましい。   Furthermore, depending on the photon flux density of the artificial light to be irradiated and the range to be irradiated with artificial light, in addition to the advance position, the movable beam is retracted, or an intermediate position between the advance position and the retract position. It is possible to irradiate with artificial light by moving to. For example, natural turf damage tends to be particularly severe before the goal of a soccer stadium, and it is effective to increase the photon flux density of the artificial light to be irradiated when growing this part of the natural turf. In this case, however, it is preferable to irradiate the artificial light by moving the movable beam to the retracted position.

この発明の天然芝育成用照明装置の全体構成を示し、可動ビームが退入位置にある状態の正面図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a front view of the state which shows the whole structure of the illuminating device for natural grass cultivation of this invention, and a movable beam exists in a retracted position. 図１の天然芝育成用照明装置の全体構成を示し、可動ビームが退入位置にある状態の平面図である。It is a top view of the state which shows the whole structure of the illuminating device for natural turf cultivation of FIG. 1, and a movable beam exists in a retracted position. 図１の天然芝育成用照明装置の全体構成を示し、可動ビームが進出位置にある状態の正面図である。It is a front view of the state which shows the whole structure of the illuminating device for natural turf cultivation of FIG. 1, and a movable beam exists in an advance position. 図１の天然芝育成用照明装置の全体構成を示し、可動ビームが進出位置にある状態の平面図である。It is a top view of the state which shows the whole structure of the illuminating device for natural turf cultivation of FIG. 1, and a movable beam exists in an advance position. 図１の天然芝育成用照明装置を示す可動ビームが退入位置にある状態の左側面図である。It is a left view of the state which has the movable beam which shows the illuminating device for natural grass cultivation of FIG. 1 in a retracted position. 図５の部分拡大図である。It is the elements on larger scale of FIG. 図６のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. この発明の天然芝育成用照明装置の他の実施形態を示す図６相当の図である。It is a figure equivalent to FIG. 6 which shows other embodiment of the illuminating device for natural grass cultivation of this invention. 図８のＢ−Ｂ線断面図である。It is the BB sectional drawing of FIG.

以下、この発明の実施形態を、図面を参照して説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１〜図５はこの発明の天然芝育成用照明装置の全体構成を示し、図６および図７はその要部の構成を示す。   1 to 5 show the overall configuration of a lighting device for natural turf cultivation according to the present invention, and FIGS. 6 and 7 show the configuration of the main part thereof.

以下の説明において、「アルミニウム」という用語には、純アルミニウムの他にアルミニウム合金を含むものとする。   In the following description, the term “aluminum” includes aluminum alloys in addition to pure aluminum.

図１〜図５において、天然芝育成用照明装置(1)は、水平状のアルミニウム製フレーム(2)と、フレーム(2)を支持する３以上、ここでは４つのアルミニウム製主支持脚(3)と、主支持脚(3)の下端に取り付けられた移動用キャスタ(4)(5)と、長手方向が左右方向を向きかつフレーム(2)に対して進出・退入自在に設けられた少なくとも１つ、ここでは２つの灯具取付用のアルミニウム製可動ビーム(6)と、長手方向を可動ビーム(6)の長手方向（左右方向）に向けた状態で、フレーム(2)に対して固定状に設けられた少なくとも１つ、ここでは１つの灯具取付用のアルミニウム製固定ビーム(7)と、可動ビーム(6)の進出方向前端部に設けられかつ可動ビーム(6)の進出時に可動ビーム(6)の先端を支持するアルミニウム製副支持脚(8)と、副支持脚(8)の下端に取り付けられた可動ビーム案内用キャスタ(9)と、固定ビーム(7)および可動ビーム(6)に取り付けられた複数のＬＥＤ灯具(11)とを備えており、可動ビーム(6)の退入時に、副支持脚(8)の可動ビーム案内用キャスタ(9)の下端が主支持脚(3)のキャスタ(4)(5)の下端よりも上方に位置するようになされたものである。   1 to 5, the natural turf growing lighting device (1) includes a horizontal aluminum frame (2) and three or more, four aluminum main support legs (3) supporting the frame (2). ), And a caster for movement (4) (5) attached to the lower end of the main support leg (3), and the longitudinal direction is directed to the left and right direction and is provided so as to be able to advance and retract with respect to the frame (2). Fixed to the frame (2) with at least one, here two aluminum movable beams (6) for mounting the lamps, with the longitudinal direction facing the longitudinal direction (left and right direction) of the movable beam (6) And at least one of the fixed aluminum fixtures (7) for mounting the lamp, and the movable beam (6) provided at the front end of the movable beam (6) and when the movable beam (6) is advanced. The aluminum auxiliary support leg (8) that supports the tip of (6) and the lower end of the auxiliary support leg (8) Movable beam guide casters (9) and a plurality of LED lamps (11) attached to the fixed beam (7) and the movable beam (6). The lower end of the movable beam guiding caster (9) of the support leg (8) is positioned higher than the lower ends of the casters (4) and (5) of the main support leg (3).

フレーム(2)は、平面から見て可動ビーム(6)および固定ビーム(7)の長手方向（左右方向）に長い長方形状であり、長手方向を左右方向に向けた状態で前後方向に間隔をおいて配置された１対の長尺枠部材(2a)と、長手方向を左右方向に向けて配置されかつ両長尺枠部材(2a)の長手方向両端部どうしを連結する短尺部材(2b)とからなる。フレーム(2)の４つの角部に、主支持脚(3)が下方突出状に設けられている。前後両側に配置された２つの主支持脚(3)の下部どうしおよび左右両側に配置された２つの主支持脚(3)の下部どうしの間には、それぞれ中桟(12)が配置されて主支持脚(3)に固定されている。フレーム(2)の左右いずれか一端側、ここでは左端側の前後２つの主支持脚(3)に取り付けられた移動用キャスタは、車輪(4a)の方向が自在に変えられる自在キャスタ(4)であり、同他端部の２つの主支持脚(3)に取り付けられた移動用キャスタは、向きが不変でかつ前後方向を向いた水平回転中心線の周りに回転する車輪(5a)を有する固定キャスタ(5)である。   The frame (2) has a rectangular shape that is long in the longitudinal direction (left-right direction) of the movable beam (6) and the fixed beam (7) when viewed from the plane, and is spaced in the front-rear direction with the longitudinal direction facing the left-right direction. A pair of long frame members (2a) arranged in the vertical direction, and a short member (2b) which is arranged with the longitudinal direction oriented in the left-right direction and which connects the longitudinal ends of both long frame members (2a) It consists of. Main support legs (3) are provided so as to protrude downward at four corners of the frame (2). Between each of the lower parts of the two main support legs (3) arranged on the front and rear sides and between the lower parts of the two main support legs (3) arranged on the left and right sides, an intermediate beam (12) is arranged, respectively. It is fixed to the main support leg (3). The caster for movement attached to the two main support legs (3) on either the left or right side of the frame (2), here the left end, is a free caster (4) whose direction of the wheel (4a) can be changed freely The moving casters attached to the two main support legs (3) at the other end have wheels (5a) that rotate around a horizontal rotation center line that is invariable and faces in the front-rear direction. Fixed caster (5).

図５〜図７に示すように、自在キャスタ(4)は、主支持脚(3)の下端に設けられ、かつ主支持脚(3)の長手方向にのびる垂直回転中心線(O1)の周りに回転しうる回転枠(15)と、回転枠(15)に、同一水平回転中心線(O2)の周りに回転自在となるように水平回転中心線(O2)の長手方向に間隔をおいて取り付けられ、かつ互いに独立して回転する偶数個、ここでは２個の車輪(4a)とを有しており、回転枠(15)の回転中心である垂直回転中心線(O1)の両側にそれぞれ同数、ここでは１個の車輪(4a)が配置されている。回転枠(15)は、主支持脚(3)の下端に固定された水平取付板(16)の下面に固定された固定部(15a)と、固定部(15a)に対して垂直回転中心線(O1)の周りに回転しうる回転部(15b)と、回転部(15b)に互いに間隔をおくように一体に設けられた下方突出状保持部(15c)とよりなる。図示は省略したが、各車輪(4a)は、車輪本体と車輪本体の周囲に嵌められたゴムタイヤとからなり、回転枠(15)の両保持部(15c)間に渡し止められた水平軸(17)に、水平回転中心線(O2)の周りに回転しうるように取り付けられている。２個の車輪(4a)の幅および外径が等しくなっている。回転枠(15)の回転中心である垂直回転中心線(O1)の片側の車輪(4a)と他側の車輪(4a)とは、水平回転中心線(O2)と直交するとともに垂直回転中心線(O1)が位置する平面を対称面として面対称となるように配置されている。換言すれば、回転枠(15)の回転中心である垂直回転中心線(O1)は、両車輪(4a)間の中心に位置している。また、回転枠(15)の回転中心である垂直回転中心線(O1)は、車輪(4a)の外径の範囲内、たとえば車輪(4a)の外径の中心でかつ主支持脚(3)における自在キャスタ(4)側の端部の範囲内に位置している。   As shown in FIGS. 5 to 7, the universal caster (4) is provided at the lower end of the main support leg (3) and around the vertical rotation center line (O1) extending in the longitudinal direction of the main support leg (3). The rotary frame (15) that can be rotated in the horizontal direction and the rotary frame (15) are spaced apart in the longitudinal direction of the horizontal rotation center line (O2) so as to be rotatable around the same horizontal rotation center line (O2). It has an even number, in this case two wheels (4a), which are attached and rotate independently of each other, on each side of the vertical rotation center line (O1) which is the center of rotation of the rotating frame (15). The same number, here one wheel (4a) is arranged. The rotating frame (15) includes a fixed portion (15a) fixed to the lower surface of the horizontal mounting plate (16) fixed to the lower end of the main support leg (3), and a vertical rotation center line with respect to the fixed portion (15a). The rotating portion (15b) that can rotate around (O1) and the downward projecting holding portion (15c) that are integrally provided to the rotating portion (15b) so as to be spaced apart from each other. Although not shown, each wheel (4a) is composed of a wheel main body and a rubber tire fitted around the wheel main body, and a horizontal axis (not shown) between both holding parts (15c) of the rotating frame (15) ( It is attached to 17) so that it can rotate around the horizontal rotation center line (O2). The width and outer diameter of the two wheels (4a) are equal. The wheel (4a) on one side and the wheel (4a) on the other side of the vertical rotation center line (O1), which is the rotation center of the rotating frame (15), are orthogonal to the horizontal rotation center line (O2) and the vertical rotation center line The plane in which (O1) is located is arranged to be plane symmetric with respect to the plane of symmetry. In other words, the vertical rotation center line (O1) that is the rotation center of the rotation frame (15) is located at the center between the two wheels (4a). Further, the vertical rotation center line (O1) which is the rotation center of the rotating frame (15) is within the range of the outer diameter of the wheel (4a), for example, the center of the outer diameter of the wheel (4a) and the main support leg (3). Is located within the range of the end of the universal caster (4) side.

図示は省略したが、固定キャスタ(5)は、上述した自在キャスタ(4)の回転枠(15)の回転部(15b)を、ストッパにより固定部(15a)および水平取付板(16)に対して回転しないように固定したものであってもよい。   Although not shown, the fixed caster (5) is configured such that the rotary part (15b) of the rotary frame (15) of the above-described universal caster (4) is fixed to the fixed part (15a) and the horizontal mounting plate (16) by a stopper. It may be fixed so as not to rotate.

フレーム(2)に、長手方向が左右方向を向きかつ可動ビーム(6)を案内する２つのアルミニウム製レール(13)が、前後方向に間隔をおいて配置されている。レール(13)は、左右両端部がフレーム(2)から突出した状態でフレーム(2)の両短尺枠部材(2b)の下面に溶接などの適当な方法により固定されている。可動ビーム(6)はレール(13)に対して相対的に移動し、レール(13)によって案内されるようになされている。ここで、前側の可動ビーム(6)は、図１〜図４の左側に進出するとともに、同図の右側に退入するので、当該可動ビーム(6)に関しては同図の左側が進出方向前端部（退入方向後端部）で、これとは反対側が進出方向後端部（退入方向前端部）である。また、後側の可動ビーム(6)は、図１〜図４の右側に進出するとともに、同図の左側に退入するので、当該可動ビーム(6)に関しては同図の右側が進出方向前端部（退入方向後端部）で、これとは反対側が進出方向後端部（退入方向前端部）である。   On the frame (2), two aluminum rails (13) whose longitudinal direction points in the left-right direction and guide the movable beam (6) are arranged at intervals in the front-rear direction. The rail (13) is fixed to the lower surfaces of both short frame members (2b) of the frame (2) by an appropriate method such as welding with both left and right ends protruding from the frame (2). The movable beam (6) moves relative to the rail (13) and is guided by the rail (13). Here, the front movable beam (6) advances to the left side of FIGS. 1 to 4 and retreats to the right side of the figure, so that the left side of the movable beam (6) is the front end in the advance direction. Part (retreat direction rear end part), the opposite side is the advancing direction rear end part (retreat direction front end part). Also, the movable beam (6) on the rear side advances to the right side of FIGS. 1 to 4 and retreats to the left side of FIG. Part (retreat direction rear end part), the opposite side is the advancing direction rear end part (retreat direction front end part).

可動ビーム(6)は横断面Ｔ形であって、垂直壁が灯具取付部(24)となっており、その下部はレール(13)の下方に突出している。そして、灯具取付部(24)におけるレール(13)よりも下方に突出した部分に、ＬＥＤチップが実装されたＬＥＤパッケージを有する複数のＬＥＤ灯具(11)が、着脱自在に取り付けられている。   The movable beam (6) has a T-shaped cross section, a vertical wall serving as a lamp mounting portion (24), and a lower portion thereof projects below the rail (13). A plurality of LED lamps (11) having LED packages on which LED chips are mounted are detachably attached to portions of the lamp attachment part (24) that protrude downward from the rail (13).

固定ビーム(7)は、可動ビーム(6)と同様に横断面Ｔ形であって、水平壁の前後両側縁部が、それぞれ溶接などの適当な方法で前後のレール(13)に固定されており、これにより固定ビーム(7)がレール(13)を介してフレーム(2)に固定されている。また、固定ビーム(7)の垂直壁が灯具取付部(24)となっており、灯具取付部(24)に、ＬＥＤチップが実装されたＬＥＤパッケージを有する複数のＬＥＤ灯具(11)が、着脱自在に取り付けられている。   The fixed beam (7) has a T-shaped cross section like the movable beam (6), and the front and rear side edges of the horizontal wall are fixed to the front and rear rails (13) by an appropriate method such as welding. Thus, the fixed beam (7) is fixed to the frame (2) via the rail (13). In addition, the vertical wall of the fixed beam (7) is a lamp mounting part (24), and a plurality of LED lamps (11) having an LED package mounted with LED chips are attached to and detached from the lamp mounting part (24). It is attached freely.

図５に示すように、可動ビーム(6)の副支持脚(8)は、可動ビーム(6)の進出方向前端部に垂下状に固定された１つの第１垂直部材(29)と、第１垂直部材(29)の下端に、長手方向が前後方向を向くとともに第１垂直部材(29)が長手方向の中央部に位置するように固定された板状の第１水平部材(31)と、第１水平部材(31)の前後両端部にそれぞれ垂下状に固定された２つの第２垂直部材(32)と、両第２垂直部材(32)の下端に跨って固定された板状の第２水平部材(33)とを備えている。第２水平部材(33)下面の前後両端部に、向きが不変でかつ前後方向を向いた水平回転中心線の周りに回転する車輪(9a)を有する可動ビーム案内用キャスタ(9)が取り付けられている。また、第１垂直部材(29)に、可動ビーム(6)を退入位置と進出位置との間で移動させる際につかむ把手(34)が取り付けられている。   As shown in FIG. 5, the sub-support leg (8) of the movable beam (6) has a first vertical member (29) fixed in a suspended manner at the front end of the movable beam (6) in the advancing direction, A plate-like first horizontal member (31) fixed to the lower end of one vertical member (29) so that the longitudinal direction is directed in the front-rear direction and the first vertical member (29) is positioned at the center of the longitudinal direction; , Two second vertical members (32) fixed to the front and rear ends of the first horizontal member (31), respectively, and a plate-like shape fixed across the lower ends of the second vertical members (32). And a second horizontal member (33). A movable beam guiding caster (9) having a wheel (9a) rotating around a horizontal rotation center line whose direction is not changed and is directed in the front-rear direction is attached to both front and rear ends of the lower surface of the second horizontal member (33). ing. In addition, a handle (34) is attached to the first vertical member (29), which is gripped when the movable beam (6) is moved between the retracted position and the advanced position.

ここで、副支持脚(8)における可動ビーム(6)の水平壁上面から可動ビーム案内用キャスタ(9)の車輪(9a)の下端までの垂直距離は、主支持脚(3)における可動ビーム(6)の水平壁上面から自在キャスタ(4)および固定キャスタ(5)の車輪(4a)(5a)の下端までの垂直距離よりも短くなっている。   Here, the vertical distance from the upper surface of the horizontal wall of the movable beam (6) in the auxiliary support leg (8) to the lower end of the wheel (9a) of the movable beam guiding caster (9) is the movable beam in the main support leg (3). The vertical distance from the upper surface of the horizontal wall (6) to the lower ends of the wheels (4a) and (5a) of the free caster (4) and the fixed caster (5) is shorter.

なお、図示は省略したが、電力を外部電源からＬＥＤ灯具(11)に供給する電力供給用キャブタイヤコードが、ＬＥＤ灯具(11)の上方に配置されていることが好ましい。また、図示は省略したが、主支持脚(3)および副支持脚(8)におけるＬＥＤ灯具(11)よりも下方に位置する部分に、７０％以上の反射率を有する塗料、たとえば硫酸バリウム系、酸化チタン系の白色塗料が塗布されていることが好ましい。   Although illustration is omitted, it is preferable that a cabtyre cord for power supply for supplying electric power from an external power source to the LED lamp (11) is disposed above the LED lamp (11). Although not shown in the drawing, a paint having a reflectance of 70% or more, for example, barium sulfate based on the portion of the main support leg (3) and the sub support leg (8) located below the LED lamp (11). It is preferable that a titanium oxide-based white paint is applied.

可動ビーム(6)は、フレーム(2)に対して、図１および図２に示す退入位置と、図３および図４に示す進出位置との間で移動する。   The movable beam (6) moves relative to the frame (2) between the retracted position shown in FIGS. 1 and 2 and the advanced position shown in FIGS.

可動ビーム(6)が退入位置にあるときには、副支持脚(8)における可動ビーム(6)の上面から可動ビーム案内用キャスタ(9)の車輪(9a)の下端までの垂直距離が、主支持脚(3)における可動ビーム(6)の上面から自在キャスタ(4)および固定キャスタ(5)の車輪(4a)(5a)の下端までの垂直距離よりも短くなっていることによって、副支持脚(8)の可動ビーム案内用キャスタ(9)の車輪(9a)の下端が主支持脚(3)の自在キャスタ(4)および固定キャスタ(5)の車輪(4a)(5a)の下端よりも上方に位置するようになされている。   When the movable beam (6) is in the retracted position, the vertical distance from the upper surface of the movable beam (6) to the lower end of the wheel (9a) of the movable beam guiding caster (9) in the auxiliary support leg (8) is the main distance. Secondary support by being shorter than the vertical distance from the upper surface of the movable beam (6) on the support leg (3) to the lower end of the wheels (4a) (5a) of the free caster (4) and the fixed caster (5) The lower end of the wheel (9a) of the movable beam guiding caster (9) of the leg (8) is from the lower end of the free caster (4) of the main support leg (3) and the wheel (4a) (5a) of the fixed caster (5). Is also located above.

一方、可動ビーム(6)が進出位置にあるときには、可動ビーム(6)が、重力により進出方向前端部が下方に移動するように傾き、副支持脚(8)の可動ビーム案内用キャスタ(9)の車輪(9a)が接地する。したがって、可動ビーム(6)は、進出方向前端部が副支持脚(8)により支持される。   On the other hand, when the movable beam (6) is at the advanced position, the movable beam (6) is tilted so that the front end in the advanced direction moves downward due to gravity, and the movable beam guiding caster (9) of the auxiliary support leg (8) is moved. ) Wheel (9a) is grounded. Therefore, the movable beam (6) is supported by the auxiliary support leg (8) at the front end in the advancing direction.

上述した天然芝育成用照明装置は、不使用時には可動ビーム(6)が退入位置に移動させられた状態で収納庫などに収納されている。この状態では、可動ビーム(6)が進出位置にあるときに比較して天然芝育成用照明装置(1)の全長が短くなるので、収納スペースの省スペース化を図ることができる。   The natural turf growing lighting device described above is stored in a storage or the like with the movable beam (6) moved to the retracted position when not in use. In this state, the overall length of the natural turf growing illumination device (1) is shorter than when the movable beam (6) is in the advanced position, so that the storage space can be saved.

競技場の天然芝の養生の際に、天然芝にＬＥＤ灯具(11)から人工光を照射する必要が生じた際には、収納時と同様に可動ビーム(6)を退入位置に移動させた状態で、フレーム(2)の主支持脚(3)の自在キャスタ(4)および固定キャスタ(5)を利用して競技場のグランドまで動かす。ついで、グランドの大きさに応じた必要数の天然芝育成用照明装置(1)をグランドに配置した後、可動ビーム(6)を進出位置まで移動させる。このとき、副支持脚(8)の可動ビーム案内用キャスタ(9)の車輪(9a)がスペーサ(35)を介して接地する。   When it is necessary to irradiate artificial turf from the LED lamp (11) to the natural turf when curing the natural turf at the stadium, move the movable beam (6) to the retracted position in the same way as when storing. In this state, use the free casters (4) and fixed casters (5) of the main support leg (3) of the frame (2) to move to the ground of the stadium. Next, after placing the necessary number of natural grass growing lighting devices (1) according to the size of the ground on the ground, the movable beam (6) is moved to the advanced position. At this time, the wheel (9a) of the movable beam guiding caster (9) of the auxiliary support leg (8) is grounded via the spacer (35).

この状態で、可動ビーム(6)および固定ビーム(7)に取り付けられたＬＥＤ灯具(11)により天然芝に人工光を照射する。なお、ＬＥＤ灯具(11)の高さ位置は、天然芝の育成に必要な光量子束密度を確保するために必要最少数のＬＥＤ灯具(11)を使用した上で、天然芝育成用照明装置(1)から発せられる光量子束密度を均一化しうる高さ位置としておく。天然芝への人工光の照射は、照射すべき人工光の光量子束密度や、人工光を照射すべき範囲に応じて、進出位置の他に、可動ビーム(6)を退入位置や、進出位置と退入位置との間の中間位置に移動させて人工光を照射してもよい。   In this state, artificial light is irradiated onto the natural turf by the LED lamp (11) attached to the movable beam (6) and the fixed beam (7). In addition, the height position of the LED lamp (11) is the natural turf growing lighting device (11) after using the minimum number of LED lamps (11) necessary to secure the photon flux density necessary for growing the natural turf. It is set at a height position where the photon flux density emitted from 1) can be made uniform. Irradiation of artificial light to natural turf depends on the photon flux density of the artificial light to be irradiated and the range to be irradiated with artificial light. The artificial light may be irradiated by moving to an intermediate position between the position and the retracted position.

天然芝への人工光の照射が終了すると、可動ビーム(6)をフレーム(2)に対して退入させて副支持脚(8)の可動ビーム案内用キャスタ(9)の車輪(9a)の下端を主支持脚(3)の自在キャスタ(4)および固定キャスタ(5)の車輪(4a)(5a)の下端よりも上方に移動させる。この状態で、フレーム(2)の主支持脚(3)の自在キャスタ(4)および固定キャスタ(5)を利用して収納庫まで動かす。   When the natural turf is irradiated with artificial light, the movable beam (6) is retracted into the frame (2) and the wheels (9a) of the movable beam guiding casters (9) of the auxiliary support leg (8) are retracted. The lower end is moved higher than the lower ends of the free caster (4) of the main support leg (3) and the wheels (4a) and (5a) of the fixed caster (5). In this state, the free caster (4) and the fixed caster (5) of the main support leg (3) of the frame (2) are moved to the storage.

図８および図９は、この発明の天然芝育成用照明装置の他の実施形態を示す。   8 and 9 show another embodiment of the natural turf growing lighting device of the present invention.

図８および図９に示すように、当該他の実施形態の天然芝育成用照明装置の場合、自在キャスタ(4)は、回転枠(15)に、同一水平回転中心線(O2)の周りに回転自在となるように水平回転中心線(O2)の長手方向に間隔をおいて取り付けられ、かつ互いに独立して回転する偶数個、ここでは４個の車輪(4a)を有しており、回転枠(15)の回転中心である垂直回転中心線(O1)の両側にそれぞれ同数、ここでは２個の車輪(4a)が配置されている。４つの車輪(4a)の幅および外径が等しくなっている。回転枠(15)の回転中心である垂直回転中心線(O1)の片側の両車輪(4a)と他側の両車輪(4a)とは、水平回転中心線(O2)と直交するとともに垂直回転中心線(O1)が位置する平面を対称面として面対称となるように配置されている。また、回転枠(15)の回転中心である垂直回転中心線(O1)は、車輪(4a)の外径の範囲内、たとえば車輪(4a)の外径の中心でかつ主支持脚(3)における自在キャスタ(4)側の端部の範囲内に位置している。   As shown in FIGS. 8 and 9, in the case of the natural turf growing lighting device of the other embodiment, the free caster (4) is placed around the same horizontal rotation center line (O2) on the rotating frame (15). It has an even number, in this case four wheels (4a), which are mounted at intervals in the longitudinal direction of the horizontal rotation center line (O2) so as to be rotatable, and rotate independently of each other. The same number, here two wheels (4a) are arranged on both sides of the vertical rotation center line (O1) which is the rotation center of the frame (15). The width and outer diameter of the four wheels (4a) are equal. The wheels (4a) on one side and the wheels (4a) on the other side of the vertical rotation center line (O1) that is the rotation center of the rotating frame (15) are perpendicular to the horizontal rotation center line (O2) and rotate vertically. They are arranged so as to be plane symmetric with the plane on which the center line (O1) is located as the symmetry plane. Further, the vertical rotation center line (O1) which is the rotation center of the rotating frame (15) is within the range of the outer diameter of the wheel (4a), for example, the center of the outer diameter of the wheel (4a) and the main support leg (3). Is located within the range of the end of the universal caster (4) side.

この発明による天然芝育成用照明装置は、サッカースタジアム、ラグビー競技場、陸上競技場、テニス競技場、野球場などグランドに植えられている天然芝に人工光を照射するために好適に用いられる。   The lighting device for growing natural turf according to the present invention is suitably used for irradiating artificial light to natural turf planted in the ground such as a soccer stadium, a rugby stadium, an athletic stadium, a tennis stadium, and a baseball stadium.

(1)：天然芝育成用照明装置
(2)：フレーム
(3)：主支持脚
(4)：自在キャスタ(移動用キャスタ）
(4a)：車輪
(5)：固定キャスタ(移動用キャスタ）
(6)：可動ビーム
(7)：固定ビーム
(8)：副支持脚
(9)：可動ビーム案内用キャスタ
(9a)：車輪
(11)：ＬＥＤ灯具
(O1)：垂直回転中心線
(O2)：水平回転中心線
(1): Lighting equipment for natural grass cultivation
(2): Frame
(3): Main support leg
(4): Swivel caster (moving caster)
(4a): Wheel
(5): Fixed caster (moving caster)
(6): Movable beam
(7): Fixed beam
(8): Deputy support leg
(9): Movable beam guide caster
(9a): Wheel
(11): LED lamp
(O1): Vertical rotation center line
(O2): Horizontal rotation center line

Claims (6)

フレームと、フレームを支持する３以上の支持脚と、支持脚の下端に取り付けられた移動用キャスタと、フレームに設けられた灯具取付部と、灯具取付部に取り付けられた灯具とを備えた天然芝育成用照明装置であって、
少なくとも１つの移動用キャスタが車輪の向きが自在に変わる自在キャスタであり、当該自在キャスタが、支持脚の下端に設けられ、かつ垂直回転中心線の周りに回転しうる回転枠と、回転枠に、同一水平回転中心線の周りに回転自在となるように間隔をおいて取り付けられ、かつ互いに独立して回転する偶数個の車輪とを有し、前記回転枠の回転中心である前記垂直回転中心線の両側にそれぞれ同数の車輪が配置され、すべての車輪の幅および外径が等しくなっており、前記回転枠の回転中心である前記垂直回転中心線が車輪の外径の範囲内に位置し、前記垂直回転中心線の片側の車輪と他側の車輪とが、前記水平回転中心線と直交するとともに前記垂直回転中心線が位置する平面を対称面として面対称となるように配置されている天然芝育成用照明装置。 Naturally provided with a frame, three or more support legs for supporting the frame, a moving caster attached to the lower end of the support leg, a lamp attachment part provided on the frame, and a lamp attached to the lamp attachment part A lighting device for turf cultivation,
At least one moving caster is a free caster in which the direction of a wheel can be freely changed. The free caster is provided at a lower end of a support leg, and can be rotated around a vertical rotation center line. The vertical rotation center which is an even number of wheels which are attached at intervals so as to be rotatable around the same horizontal rotation center line and which rotate independently of each other, and which is the rotation center of the rotating frame The same number of wheels are arranged on both sides of the line, the width and outer diameter of all the wheels are equal, and the vertical rotation center line, which is the rotation center of the rotating frame, is located within the range of the outer diameter of the wheel. The wheels on one side and the wheels on the other side of the vertical rotation center line are arranged so as to be plane-symmetric with respect to a plane that is orthogonal to the horizontal rotation center line and on which the vertical rotation center line is located. Natural grass Growth for the lighting device. 前記自在キャスタの車輪の数が２個であり、前記回転枠の回転中心である前記垂直回転中心線の両側にそれぞれ１個の車輪が配置されている請求項１記載の天然芝用照明装置。 The lighting device for natural turf according to claim 1, wherein the number of wheels of the universal caster is two, and one wheel is disposed on each side of the vertical rotation center line that is the rotation center of the rotating frame. 前記自在キャスタの回転枠の回転中心である前記垂直回転中心線が、支持脚における自在キャスタ側の端部の範囲内に位置している請求項１または２記載の天然芝育成用照明装置。 The lighting device for natural turf cultivation according to claim 1 or 2, wherein the vertical rotation center line, which is the rotation center of the rotary frame of the universal caster, is located within the range of the end of the support leg on the universal caster side. フレームが水平状であるとともに平面から見て方形であり、フレームの４つの角部に、支持脚が設けられ、４つの支持脚のうち少なくとも左側または右側の前後１対の支持脚に、前記自在キャスタが設けられている請求項１〜３のうちのいずれかに記載の天然芝育成用照明装置。 The frame is horizontal and square when viewed from above, and support legs are provided at four corners of the frame, and at least one of the four support legs on the left and right pair of front and rear support legs is free The lighting device for natural turf cultivation according to any one of claims 1 to 3, wherein a caster is provided. フレームに、長手方向が左右方向に向き、かつフレームに対して長手方向に進出・退入自在である少なくとも１つの灯具取付用可動ビームと、長手方向が左右方向に向き、かつフレームに対して固定状である少なくとも１つの灯具取付用固定ビームとが設けられ、灯具が固定ビームおよび可動ビームに取り付けられ、可動ビームの進出方向前端部に、可動ビームの進出時に可動ビームの先端を支持する副支持脚が設けられるとともに、副支持脚の下端に可動ビーム案内用キャスタが取り付けられ、可動ビームの退入時に、副支持脚の可動ビーム案内用キャスタの下端が、支持脚の移動用キャスタの下端よりも上方に位置するようになされている請求項１〜４のうちのいずれかに記載の天然芝育成用照明装置。 At least one lamp mounting movable beam whose longitudinal direction faces the frame in the left-right direction and can move forward and backward in the longitudinal direction with respect to the frame, and whose longitudinal direction points in the left-right direction and is fixed to the frame And at least one fixed beam for mounting the lamp, the lamp is mounted on the fixed beam and the movable beam, and the front end of the movable beam is supported at the front end of the movable beam when the movable beam is advanced. A leg is provided, and a movable beam guide caster is attached to the lower end of the auxiliary support leg. When the movable beam is retracted, the lower end of the movable beam guide caster of the auxiliary support leg is lower than the lower end of the support leg moving caster. The lighting device for natural turf cultivation according to any one of claims 1 to 4, wherein the lighting device is also located above. 支持脚の移動用キャスタおよび副支持脚の可動ビーム案内用キャスタが、車輪本体と車輪本体の周囲に嵌められたゴムタイヤとからなる請求項５記載の天然芝育成用照明装置。
6. The natural turf growing lighting device according to claim 5, wherein the supporting leg moving caster and the sub-supporting leg movable beam guiding caster comprise a wheel main body and a rubber tire fitted around the wheel main body.
JP2016009387A 2015-02-17 2016-01-21 Lighting device for raising natural turf Pending JP2016152797A (en)

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