JP3619945B2

JP3619945B2 - Lawn protection mat

Info

Publication number: JP3619945B2
Application number: JP04904197A
Authority: JP
Inventors: 征英梅津; 久次中島; 正彦河野
Original assignee: Mitsubishi Plastics Inc
Current assignee: Mitsubishi Chemical Corp
Priority date: 1997-03-04
Filing date: 1997-03-04
Publication date: 2005-02-16
Anticipated expiration: 2017-03-04
Also published as: JPH10243743A

Description

【０００１】
【発明の属する技術分野】
本発明は、芝生保護マットに関し、詳しくは、合成樹脂により形成された芝生保護マットであって、多数個のマットを連結して芝生植生地に敷設される芝生保護マットに関する。
【０００２】
【従来の技術】
従来から、ゴルフ場等の芝生植生地において、芝生を保護するために多数の突起部を適当な間隔で形成した芝生保護材が用いられている。この芝生保護材として、適当な大きさの正多角形状の板状のマットを多数個連結して使用する芝生保護マットが広く用いられている（登録意匠第７０６５２０号等）。
【０００３】
【発明が解決しようとする課題】
しかし、従来の芝生保護マットは、マット同士の連結に方向性があり、また、連結部も一方向からしか連結できない構造のため、芝生保護マットを敷設する際には、その方向を確認しながら行う必要があり、連結する順序も考慮しながら作業する必要があった。また、間違えて連結してしまった場合の取り外しも面倒であった。さらに、連結部の取り外しに方向性があるため、中央部に敷設されている１枚の芝生保護マットのみを取り外すことが極めて面倒であり、周囲に連結されているマットを持ち上げたりして行う必要があった。
【０００４】
そこで本発明は、連結作業を容易に行えるとともに、取り外しも容易に行うことができる芝生保護マットを提供することを目的としている。
【０００５】
【課題を解決するための手段】
上記目的を達成するため、本発明の芝生保護マットは、正多角形状のマット本体の各辺に、互いに連結可能な形状を有する雄連結部と雌連結部とを設けるとともに、該雄連結部と雌連結部とを、各辺の垂直二等分線を対称軸とした線対称位置にそれぞれ設けた芝生保護マットにおいて、前記雄連結部は、マット本体に接続する接続部と、該接続部の先端に設けられた係合凸部とを有し、前記雌連結部は、前記接続部が上下方向に挿通可能なスリット部と、前記雄連結部の係合凸部が嵌入する上下が開口した係合溝部とを有しており、前記係合凸部と係合溝部とには、互いに係合して雌連結部からの雄連結部の抜けを防止する係合部が設けられていることを特徴としている。
【０００６】
さらに、本発明の前記係合部は、前記接続部４１の先端から二股に分岐した一対の弾性片の内の一方の弾性片の下端部と他方の弾性片の上端部にそれぞれ設けた係合突起と、前記係合溝部５２の両側壁５３，５４の内の一方の側壁の下端部と他方の側壁の上端部にそれぞれ設けた係合段部とからなり、芝生保護マットを連結したときに、前記下端部の係合突起と係合段部とが係合し、前記上端部の係合突起と係合段部とが係合するものであることを特徴としている。
【０００７】
【発明の実施の形態】
図１は、本発明の芝生保護マットの一例を示す一部を省略した平面図、図２は要部の平面図、図３は要部の一部断面正面図、図４は要部の側面図である。この芝生保護マットは、中空四角錘台状の突起１を、連結片２を介して縦方向及び横方向に等間隔で同数配置した正方形状のマット本体３と、該マット本体３の各辺にそれぞれ設けられた雄連結部４と、該雄連結部４に連結可能な形状の雌連結部５とにより形成されている。
【０００８】
上記雄連結部４と雌連結部５とは、各辺の垂直二等分線Ｖを対称軸とした線対称位置にそれぞれ対応して一方に雄連結部４が、その対称位置に雌連結部５が位置するように設けられており、各辺とも同じ状態で雄連結部４と雌連結部５とが配置されている。また、マット本体３の中心点Ｏに対しては点対称となるように配置されている。
【０００９】
すなわち、芝生保護マット同士を連結する際に、任意の一辺同士を対向させると、一方の芝生保護マットの雄連結部４に対応して他方の芝生保護マットの雌連結部５が位置するように形成されている。したがって、マット同士の連結に方向性が無くなるため、芝生保護マットを敷設する際にマットの方向を気にせずに連結作業を行うことができ、作業性を大幅に向上させることができる。
【００１０】
また、図２乃至図４に示すように、前記雄連結部４は、マット本体３に接続する接続部４１と、該接続部４１の先端に設けられた係合凸部４２とを有しており、前記雌連結部５は、前記雄連結部４の接続部４１が上下方向に挿通可能なスリット部５１と、前記雄連結部４の係合凸部４２が嵌入する上下が開口した係合溝部５２とを有している。
【００１１】
前記係合凸部４２は、接続部４１の先端から二股に分岐した一対の弾性片４３，４４を有しており、一方の弾性片４３には下端部に係合突起４５が設けられ、他方の弾性片４４には上端部に係合突起４６が設けられている。一方、前記係合溝部５２の両側壁５３，５４には、前記弾性片４３，４４の係合突起４５，４６が係合する係合段部５５，５６がそれぞれ切欠き形成されており、芝生保護マットを連結したときに、弾性片４３の下端部に設けた係合突起４５が側壁５３の下部に設けた係合段部５５に係合し、弾性片４４の上端部に設けた係合突起４６が側壁５４の上部に設けた係合段部５６に係合するように形成されている。
【００１２】
したがって、係合突起４５と係合段部５５との係合により、雌連結部５から雄連結部４が上方へ抜けることが防止されるとともに、係合突起４６と係合段部５６との係合により、雄連結部４が雌連結部５の下方へ抜けることが防止され、係合凸部４２より幅狭の接続部４１が係合溝部５２より幅狭のスリット部５１に挿入されて水平方向への抜けも防止されるので、隣接する芝生保護マット同士が確実に連結された状態となる。
【００１３】
また、雄連結部４を接続部４１と係合凸部４２とで形成するとともに、雌連結部５をスリット部５１と係合溝部５２とで形成し、雌連結部５に対して雄連結部４を上下いずれの方向からでも嵌入させることができる構造としたので、芝生保護マット同士の連結作業を容易に行うことができる。
【００１４】
また、敷設後の芝生保護マットの取り外しは、雄連結部４の係合突起４５，４６のいずれか一方を内方に押圧変形させて係合段部５５，５６との係合状態を解除することにより簡単に行うことができる。また、取り外しの方向性も無いため、中央部に敷設されている芝生保護マットも簡単に取り外すことが可能となり、損傷時の交換も容易に行うことができる。
【００１５】
図５以下は、連結部の構造の他の形状例を示すものであって、図５は雄連結部の第１変形例を示す正面図である。図６及び図７は雄連結部及び雌連結部の第２変形例を示すもので、図６は分解斜視図、図７は連結状態を示す断面図である。図８及び図９は雄連結部及び雌連結部の第３変形例を示すもので、図８は連結状態を示す平面図、図９は同じく断面図である。図１０乃至図１３は雄連結部及び雌連結部の第４変形例を示すもので、図１０は分解斜視図、図１１は雄連結部の平面図、図１２は同じく正面図、図１３は連結状態を示す断面図である。図１４及び図１５は雄連結部の第４変形例を示すもので、図１４は雄連結部の平面図、図１５は同じく正面図である。さらに、図１６は雄連結部の第５変形例を示す斜視図、図１７は雄連結部の第６変形例を示す斜視図である。
【００１６】
まず、図５に示す雄連結部４ａは、前記同様に形成されている弾性片４３ａ，４４ａの係合突起４５ａ，４６ａ部分を雌連結部５ａより突出するように上下に延長したものである。このように係合突起４５ａ，４６ａ部分を上下に延長することにより、芝生保護マットを取り外す際の係合突起４５，４６の係合解除を、この延長部を利用して行うことができるので、取り外し作業をより容易に行えるようになる。
【００１７】
図６及び図７に示す連結構造は、雄連結部４ｂの係合凸部４２ｂを、雌連結部５ｂの係合溝部５２ｂの内部形状に合わせた中実形状としたものであり、図８及び図９に示す連結構造は、雄連結部４ｃの係合凸部４２ｃの幅を、雌連結部５ｃの係合溝部５２ｃの幅より狭く形成したものである。
【００１８】
図１０乃至図１３に示す連結構造は、雄連結部４ｄの弾性片４３ｄ，４４ｄを、接続部４１ｄの延長部を含むＵ字状に形成し、その先端部に係合突起４５ｄ，４６ｄをそれぞれ設けたものである。また、雌連結部５ｄの係合溝部５２ｄには、両側壁５３ｄ，５４ｄの端部を外方に屈曲させた形状の係合段部５５ｄ，５６ｄが設けられている。このように弾性片４３ｄ，４４ｄを形成することにより、係合突起４５ｄ，４６ｄの係脱方向に大きなばね性を持たせることができるので、雌連結部５ｄとの係合力を高めることができるとともに、係合段部５５ｄ，５６ｄとの係合状態の解除も容易に行うことができる。
【００１９】
図１４及び図１５に示す連結構造は、雄連結部４ｅの弾性片４３ｅ，４４ｅを、接続部４１ｅの延長部の上下方向中間部に設けた支持片４７ｅにより支持したものであり、図１６に示す雄連結部４ｆは、接続部４１ｆの延長部の適当な高さ位置から両方向に支持片４７ｆを突設し、その先端部に係合突起４５ｆ，４６ｆを有する弾性片４３ｆ，４４ｆをそれぞれ設けたものである。また、図１７に示す連結構造は、雄連結部４ｇの係合凸部４２ｇを角筒状に形成し、筒側壁に２本のスリット４８ｇを設けることによって弾性片４３ｇ，４４ｇを弾性変形可能に形成したものである。
【００２０】
これらの連結構造は、芝生保護マットの大きさや材質、連結部の強度等を考慮して選択すればよく、連結部の数も任意であり、一つの芝生保護マットの両端部と中間部とに異なる連結構造を採用することも可能である。なお、マット本体の形状は、前記形態例に限定されるものではなく、その外形も正方形に限らず、正三角形や正六角形であってもよく、長方形状にも適用が可能である。
【００２１】
【発明の効果】
以上説明したように、本発明の芝生保護マットによれば、マット敷設時の連結作業を容易に行うことができ、取り外しも簡単に行うことができる。
【図面の簡単な説明】
【図１】本発明の芝生保護マットの一例を示す一部を省略した平面図である。
【図２】要部の平面図である。
【図３】要部の一部断面正面図である。
【図４】要部の側面図である。
【図５】雄連結部の第１変形例を示す正面図である。
【図６】雄連結部及び雌連結部の第２変形例を示す分解斜視図である。
【図７】連結状態を示す断面図である。
【図８】雄連結部及び雌連結部の第３変形例を示す平面図である。
【図９】同じく断面図である。
【図１０】雄連結部及び雌連結部の第４変形例を示す分解斜視図である。
【図１１】雄連結部の平面図である。
【図１２】同じく正面図である。
【図１３】連結状態を示す断面図である。
【図１４】雄連結部の第４変形例を示す平面図である。
【図１５】同じく正面図である。
【図１６】雄連結部の第５変形例を示す斜視図である。
【図１７】雄連結部の第６変形例を示す斜視図である。
【符号の説明】
１…突起、２…連結片、３…マット本体、４…雄連結部、４１…接続部、４２…係合凸部、４３，４４…弾性片、４５，４６…係合突起、５…雌連結部、５１…スリット部、５２…係合溝部、５３，５４…側壁、５５，５６…係合段部、Ｏ…中心点、Ｖ…垂直二等分線[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lawn protection mat, and more particularly, to a lawn protection mat formed of a synthetic resin, and relates to a lawn protection mat that is laid on a grass planting cloth by connecting a number of mats.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a lawn protective material in which a large number of protrusions are formed at appropriate intervals is used to protect a lawn in a lawn planting material such as a golf course. As this lawn protective material, a lawn protective mat using a large number of regular polygonal plate-like mats having an appropriate size connected is widely used (Registered Design No. 706520, etc.).
[0003]
[Problems to be solved by the invention]
However, the conventional lawn protection mat has a direction to connect the mats, and the connecting part can be connected only from one direction, so when laying the lawn protection mat, check the direction. It was necessary to work, and it was necessary to work in consideration of the order of connection. In addition, it is troublesome to remove it when it is connected by mistake. Furthermore, since there is a direction to remove the connecting part, it is extremely troublesome to remove only one lawn protection mat laid in the center part, and it is necessary to lift the mats connected to the surroundings. was there.
[0004]
Therefore, an object of the present invention is to provide a lawn protection mat that can be easily connected and removed.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the lawn protection mat of the present invention is provided with a male connecting portion and a female connecting portion having shapes connectable to each side of a regular polygonal mat body, In the lawn protection mat provided with a female coupling portion at a line symmetry position with the vertical bisector of each side as the symmetry axis , the male coupling portion includes a connection portion connected to the mat body, and An engaging projection provided at the tip, and the female connecting portion is open at the top and bottom where the connecting portion is inserted into the slit and the engaging convex portion of the male connecting portion is inserted. An engaging groove that is engaged with each other to prevent the male connecting portion from coming off from the female connecting portion. It is characterized by.
[0006]
Further, the engagement portion of the present invention is provided with an engagement provided at a lower end portion of one elastic piece and an upper end portion of the other elastic piece, respectively, of a pair of elastic pieces bifurcated from the tip of the connection portion 41. When the lawn protection mat is connected, the protrusion includes a lower end portion of one of the side walls 53 and 54 of the engaging groove portion 52 and an engaging step portion provided at the upper end portion of the other side wall. The engagement protrusion and the engagement step portion of the lower end portion are engaged, and the engagement protrusion and the engagement step portion of the upper end portion are engaged .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a plan view with a part omitted showing an example of a lawn protection mat of the present invention, FIG. 2 is a plan view of the main part, FIG. 3 is a partial sectional front view of the main part, and FIG. 4 is a side view of the main part. FIG. This lawn protection mat has a square-shaped mat body 3 in which the same number of hollow square frustum-shaped projections 1 are arranged at equal intervals in the vertical direction and the horizontal direction via connecting pieces 2, and on each side of the mat body 3. Each of the male connecting portions 4 is provided with a female connecting portion 5 having a shape connectable to the male connecting portion 4.
[0008]
The male connecting portion 4 and the female connecting portion 5 correspond to the line symmetric positions with the vertical bisector V of each side as the symmetry axis, respectively, and the male connecting portion 4 on one side and the female connecting portion at the symmetrical position. 5 and the male connection part 4 and the female connection part 5 are arrange | positioned in the same state on each side. The mat body 3 is arranged so as to be point-symmetric with respect to the center point O.
[0009]
That is, when connecting the lawn protection mats, if any one side is opposed, the female connection part 5 of the other lawn protection mat is positioned corresponding to the male connection part 4 of one lawn protection mat. Is formed. Therefore, since the direction of the mats is lost, the connection work can be performed without worrying about the direction of the mats when laying the lawn protection mat, and the workability can be greatly improved.
[0010]
As shown in FIGS. 2 to 4, the male coupling portion 4 has a connection portion 41 connected to the mat body 3 and an engagement convex portion 42 provided at the tip of the connection portion 41. The female connecting portion 5 has a slit portion 51 through which the connecting portion 41 of the male connecting portion 4 can be inserted in the vertical direction, and an engagement in which the upper and lower sides into which the engaging convex portions 42 of the male connecting portion 4 are inserted are opened. And a groove 52.
[0011]
The engaging convex part 42 has a pair of elastic pieces 43, 44 bifurcated from the tip of the connecting part 41. One elastic piece 43 is provided with an engaging protrusion 45 at the lower end, and the other The elastic piece 44 is provided with an engaging projection 46 at the upper end. On the other hand, on both side walls 53 and 54 of the engagement groove 52, engagement step portions 55 and 56 with which the engagement protrusions 45 and 46 of the elastic pieces 43 and 44 are engaged are formed, respectively. When the protective mat is connected, the engagement protrusion 45 provided at the lower end portion of the elastic piece 43 engages with the engagement step portion 55 provided at the lower portion of the side wall 53, and the engagement provided at the upper end portion of the elastic piece 44. The protrusion 46 is formed so as to engage with an engaging step 56 provided on the upper portion of the side wall 54.
[0012]
Therefore, the engagement between the engagement protrusion 45 and the engagement step portion 55 prevents the male connection portion 4 from coming out upward from the female connection portion 5, and the engagement protrusion 46 and the engagement step portion 56 Due to the engagement, the male connecting portion 4 is prevented from coming out below the female connecting portion 5, and the connecting portion 41 narrower than the engaging convex portion 42 is inserted into the slit portion 51 narrower than the engaging groove portion 52. Since the horizontal removal is also prevented, the adjacent lawn protection mats are reliably connected to each other.
[0013]
The male connecting portion 4 is formed by the connecting portion 41 and the engaging convex portion 42, and the female connecting portion 5 is formed by the slit portion 51 and the engaging groove portion 52. Since 4 is made into the structure which can be inserted from any direction up and down, the connection operation | work of lawn protection mats can be performed easily.
[0014]
In addition, when the lawn protection mat is removed after laying, one of the engagement protrusions 45 and 46 of the male connecting portion 4 is pressed and deformed inward to release the engagement state with the engagement step portions 55 and 56. This can be done easily. Moreover, since there is no directionality of removal, the lawn protection mat laid in the center part can be easily removed, and replacement at the time of damage can be easily performed.
[0015]
FIG. 5 and subsequent figures show other shape examples of the structure of the connecting portion, and FIG. 5 is a front view showing a first modification of the male connecting portion. 6 and 7 show a second modified example of the male connecting portion and the female connecting portion, FIG. 6 is an exploded perspective view, and FIG. 7 is a cross-sectional view showing the connected state. 8 and 9 show a third modification of the male connecting portion and the female connecting portion, FIG. 8 is a plan view showing the connected state, and FIG. 9 is a sectional view of the same. FIGS. 10 to 13 show a fourth modification of the male connecting portion and the female connecting portion. FIG. 10 is an exploded perspective view, FIG. 11 is a plan view of the male connecting portion, FIG. 12 is a front view, and FIG. It is sectional drawing which shows a connection state. 14 and 15 show a fourth modified example of the male connecting portion, FIG. 14 is a plan view of the male connecting portion, and FIG. 15 is a front view of the same. Further, FIG. 16 is a perspective view showing a fifth modified example of the male connecting portion, and FIG. 17 is a perspective view showing a sixth modified example of the male connecting portion.
[0016]
First, the male connecting portion 4a shown in FIG. 5 is obtained by extending the engaging protrusions 45a and 46a of the elastic pieces 43a and 44a formed in the same manner as described above so as to protrude from the female connecting portion 5a. By extending the engagement protrusions 45a and 46a up and down in this way, the engagement protrusions 45 and 46 can be disengaged when removing the lawn protection mat by using this extension. Removal work can be performed more easily.
[0017]
The connection structure shown in FIGS. 6 and 7 has a solid shape in which the engagement convex portion 42b of the male connection portion 4b is matched with the internal shape of the engagement groove portion 52b of the female connection portion 5b. The connection structure shown in FIG. 9 is such that the width of the engagement convex portion 42c of the male connection portion 4c is narrower than the width of the engagement groove portion 52c of the female connection portion 5c.
[0018]
10 to 13, the elastic pieces 43d and 44d of the male connecting portion 4d are formed in a U-shape including the extension of the connecting portion 41d, and the engaging protrusions 45d and 46d are respectively provided at the tip portions thereof. It is provided. Further, the engaging groove portions 52d of the female connecting portion 5d are provided with engaging step portions 55d and 56d having shapes in which the end portions of the side walls 53d and 54d are bent outward. By forming the elastic pieces 43d and 44d in this way, it is possible to provide a large spring property in the engagement / disengagement direction of the engagement protrusions 45d and 46d, so that the engagement force with the female connecting portion 5d can be increased. The engagement state with the engagement step portions 55d and 56d can be easily released.
[0019]
The connection structure shown in FIGS. 14 and 15 is obtained by supporting the elastic pieces 43e and 44e of the male connection portion 4e by a support piece 47e provided in the middle portion in the vertical direction of the extension portion of the connection portion 41e. The male connecting portion 4f shown is provided with a support piece 47f projecting in both directions from an appropriate height position of the extension portion of the connection portion 41f, and provided with elastic pieces 43f and 44f having engaging projections 45f and 46f at the tip portions thereof. It is a thing. In the connection structure shown in FIG. 17, the engagement protrusions 42g of the male connection part 4g are formed in a square tube shape, and two slits 48g are provided on the side wall of the cylinder so that the elastic pieces 43g and 44g can be elastically deformed. Formed.
[0020]
These connection structures may be selected in consideration of the size and material of the lawn protection mat, the strength of the connection part, etc., and the number of connection parts is also arbitrary. It is possible to adopt different connection structures. The shape of the mat body is not limited to the above-described embodiment, and the outer shape is not limited to a square, and may be a regular triangle or a regular hexagon, and can be applied to a rectangular shape.
[0021]
【The invention's effect】
As described above, according to the lawn protection mat of the present invention, the connecting work at the time of laying the mat can be easily performed, and the removal can be easily performed.
[Brief description of the drawings]
FIG. 1 is a plan view of a portion of an example of a lawn protection mat according to the present invention with a part thereof omitted.
FIG. 2 is a plan view of a main part.
FIG. 3 is a partial cross-sectional front view of the main part.
FIG. 4 is a side view of the main part.
FIG. 5 is a front view showing a first modification of the male coupling portion.
FIG. 6 is an exploded perspective view showing a second modification of the male connecting portion and the female connecting portion.
FIG. 7 is a cross-sectional view showing a connected state.
FIG. 8 is a plan view showing a third modification of the male connecting portion and the female connecting portion.
FIG. 9 is a sectional view of the same.
FIG. 10 is an exploded perspective view showing a fourth modification of the male connecting portion and the female connecting portion.
FIG. 11 is a plan view of a male connecting portion.
FIG. 12 is a front view of the same.
FIG. 13 is a cross-sectional view showing a connected state.
FIG. 14 is a plan view showing a fourth modification of the male coupling portion.
FIG. 15 is a front view of the same.
FIG. 16 is a perspective view showing a fifth modification of the male coupling portion.
FIG. 17 is a perspective view showing a sixth modification of the male coupling portion.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Protrusion, 2 ... Connection piece, 3 ... Mat main body, 4 ... Male connection part, 41 ... Connection part, 42 ... Engagement convex part, 43, 44 ... Elastic piece, 45, 46 ... Engagement protrusion, 5 ... Female Connection part 51 ... Slit part 52 ... engagement groove part 53,54 ... side wall 55,56 ... engagement step part, O ... center point, V ... vertical bisector

Claims

A male connecting portion and a female connecting portion having shapes that can be connected to each other are provided on each side of the regular polygonal mat body, and the male connecting portion and the female connecting portion are arranged with vertical bisectors on each side. In the lawn protection mat provided at each line symmetrical position as the axis of symmetry , the male coupling part has a connection part connected to the mat body, and an engagement convex part provided at the tip of the connection part, The female connecting portion has a slit portion through which the connecting portion can be inserted in the vertical direction, and an engaging groove portion in which the upper and lower sides into which the engaging convex portion of the male connecting portion is inserted, and the engaging convex portion The lawn protective mat is characterized in that the engaging groove portion is provided with an engaging portion that engages with each other to prevent the male connecting portion from coming off from the female connecting portion .

The engaging portion includes an engaging protrusion provided on each of a lower end portion of one elastic piece and an upper end portion of the other elastic piece of the pair of elastic pieces bifurcated from the tip of the connection portion 41, and the engagement portion. The lower end portion of one side wall of the side walls 53 and 54 of the joint groove portion 52 and an engaging step portion provided at the upper end portion of the other side wall respectively, when the lawn protection mat is connected, The lawn protection mat according to claim 1 , wherein the engagement protrusion and the engagement step portion are engaged, and the engagement protrusion and the engagement step portion of the upper end portion are engaged .