JP7465510B1

JP7465510B1 - Base structure

Info

Publication number: JP7465510B1
Application number: JP2022173742A
Authority: JP
Inventors: 充晶西本
Original assignee: Futago Shoji Co Ltd
Current assignee: Futago Shoji Co Ltd
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2024-04-11
Anticipated expiration: 2042-10-28
Also published as: JP2024064836A

Abstract

【課題】大型塁ベース本体を有しながらも既設埋込金具を埋込み直す必要が無い塁ベース構造体を提供する。【解決手段】大型塁ベース本体１と、大型塁ベース本体１の底面板２に固着されて、大型塁ベース本体１を、グラウンドに埋込まれた既設埋込金具に取着するための差込金具４とを、備える。差込金具４を、大型塁ベース本体１の裏面の前後左右中央位置と、水平面内の一方向へ所定寸法だけ移動した偏在位置とに、択一的に取着可能に構成して、１塁ベース及び３塁ベースとしては大型塁ベース本体１がファウルラインＦから外側へ出ないように配設可能とするとともに、１塁ベース、２塁ベース、３塁ベースに兼用可能に構成する。【選択図】図１[Problem] To provide a base structure that has a large base body but does not require re-embedding of existing embedded metal fittings. [Solution] The base structure comprises a large base body 1, and metal fittings 4 that are fixed to a bottom plate 2 of the large base body 1 and are used to attach the large base body 1 to existing embedded metal fittings embedded in the ground. The metal fittings 4 are configured to be attached alternatively to a central position in the front, rear, left and right directions on the back surface of the large base body 1, or to an offset position shifted a predetermined distance in one direction in the horizontal plane, so that the large base body 1 can be positioned so that it does not extend outside the foul line F when used as first base or third base, and can also be used as first base, second base and third base. [Selected drawing] Figure 1

Description

本発明は、塁ベース構造体に関する。 The present invention relates to a base structure.

一般に、野球の塁ベース構造体は、筒部を有する埋込金具をグラウンドに埋設し、塁ベース本体の底面板に固着される鍔部を有する差込金具の差込部を、埋込金具の筒部に差込むように構成される（例えば、特許文献１参照）。 In general, baseball base structures are constructed by embedding a metal fitting having a cylindrical portion in the ground, and inserting the plug of a metal fitting having a flange fixed to the bottom plate of the base body into the cylindrical portion of the metal fitting (see, for example, Patent Document 1).

ところで、塁ベース本体の大きさは、規定により定められている。例えば、硬式野球では、塁ベース本体の正方形の一辺の長さ寸法は、15インチ（38.1cm）と定められている。また、軟式野球では、14インチ（ 35.56cm）と定められている。仮に、この塁ベース本体の正方形の一辺の長さ寸法を大きくすると（すなわち大型塁ベース本体を用いると）、塁間距離が短くなり、１塁まで間一髪セーフになったり、盗塁の成功率がアップする等により、点の取り合いが増えてゲームが面白くなることが期待できるので、大型塁ベース本体を用いてほしいという要望がある。 The size of the base itself is determined by regulations. For example, in hardball baseball, the length of one side of the square base itself is set at 15 inches (38.1 cm). In softball baseball, it is set at 14 inches (35.56 cm). If the length of one side of the square base itself were to be increased (i.e., if a larger base itself were used), the distance between bases would be shorter, allowing players to get to first base in the nick of time and increasing the success rate of stealing bases, which would lead to more runs being scored and make the game more interesting, and so there is a demand for the use of larger bases.

特開２００５－２０４６７９号公報JP 2005-204679 A

しかし、特許文献１記載の塁ベース構造体は、差込金具が常に塁ベース本体の前後左右中央位置にあるので、塁ベース本体の大きさを大きくすると、既設埋込金具（一辺15インチの塁ベース用に埋込まれた埋込金具）に取着した場合、図８の斜線部に示すように、塁ベース本体の一部が、ファウルラインからはみ出してしまうという問題がある（図８の各塁の実線は標準塁ベースを示し、２点鎖線は大型塁ベースを示す）。そのため、埋込金具を大型塁ベース本体に対応した新しい所定位置に埋込み直さなければならないが、手間と時間がかかるという問題がある。特に、埋込金具は、回止めアングル等が４方向に突出しており、埋直しが困難である。 However, in the base structure described in Patent Document 1, the insert fittings are always in the center of the base body, so if the base body is enlarged, when it is attached to an existing embedded fitting (embedded fitting for a base with a side of 15 inches), a part of the base body will protrude from the foul line, as shown in the shaded area in Figure 8 (the solid lines for each base in Figure 8 indicate standard bases, and the two-dot chain lines indicate large bases). This means that the embedded fittings must be re-embedded in new positions corresponding to the large base body, which is time-consuming and laborious. In particular, the embedded fittings have anti-rotation angles and other parts that protrude in four directions, making them difficult to re-embedding.

そこで、本発明は、大型塁ベース本体を有しながらも既設埋込金具を埋込み直す必要が無い塁ベース構造体を提供することを目的とする。言い換えると、大型塁ベース本体に対して既設埋込金具をそのままの埋込位置で利用することができる塁ベース構造体を提供することを目的とする。 The present invention aims to provide a base structure that has a large base body but does not require the existing mounting hardware to be re-embedded. In other words, the present invention aims to provide a base structure that allows the existing mounting hardware to be used in the large base body in its original mounting position.

本発明に係る塁ベース構造体は、大型塁ベース本体と、該大型塁ベース本体の底面板に固着されて、該大型塁ベース本体を、グラウンドに埋込まれた既設埋込金具に取着するための差込金具とを、備え、上記差込金具を、上記大型塁ベース本体の裏面の前後左右中央位置と、水平面内の一方向へ所定寸法だけ移動した偏在位置とに、択一的に取着可能に構成して、１塁ベース及び３塁ベースとしては大型塁ベース本体がファウルラインから外側へ出ないように配設可能とするとともに、１塁ベース、２塁ベース、３塁ベースに兼用可能に構成したものである。 The base structure according to the present invention comprises a large base body and a metal insert that is fixed to the bottom plate of the large base body and is used to attach the large base body to existing metal inserts embedded in the ground. The metal inserts can be attached to either the front, rear, left, or right central position on the back of the large base body or to an offset position shifted a predetermined distance in one direction in the horizontal plane. This allows the large base body to be positioned so that it does not extend beyond the foul line when used as a first base or third base, and can also be used as a first base, second base, and third base.

また、大型塁ベース本体と、グラウンドに埋込まれた既設埋込金具の筒部に差込む差込部と、該差込部の上端に連設された鍔部を有する差込金具とを、備え、上記大型塁ベース本体の底面板に、該底面板の中心周りの１組のネジ孔と、該１組のネジ孔を水平面内の一方向へ所定寸法だけ移動した位置に配設された１組の偏在ネジ孔とを、有し、上記鍔部が、上記１組のネジ孔に対応する配置の１組の貫孔を有し、ボルトを上記鍔部の貫孔に通して上記底面板のネジ孔又は偏在ネジ孔に螺合させることにより、上記差込金具を、上記底面板裏面の中央位置と、所定寸法だけ上記一方向へ移動した偏在位置とに、択一的に取着可能に構成して、１塁ベース及び３塁ベースとしては大型塁ベース本体がファウルラインから外側へ出ないように配設可能とするとともに、１塁ベース、２塁ベース、３塁ベースに兼用可能に構成したものである。 The large base body, the insertion part that is inserted into the cylindrical part of the existing embedded metal fitting embedded in the ground, and the insertion metal fitting having a flange connected to the upper end of the insertion part, the bottom plate of the large base body has a set of screw holes around the center of the bottom plate and a set of eccentric screw holes arranged at a position shifted a predetermined dimension in one direction in a horizontal plane from the set of screw holes, the flange has a set of through holes arranged corresponding to the set of screw holes, and the insertion metal fitting can be attached alternatively to the center position on the back surface of the bottom plate or the eccentric position shifted a predetermined dimension in the one direction by passing a bolt through the through holes of the flange and screwing it into the screw hole or the eccentric screw hole of the bottom plate, so that the large base body can be arranged so that it does not extend outside the foul line as a first base and third base, and can be used for first base, second base, and third base.

また、大型塁ベース本体と、グラウンドに埋込まれた既設埋込金具の筒部に差込む差込部と、該差込部の上端に連設された鍔部を有する差込金具とを、備え、上記大型塁ベース本体の底面板に、該底面板の中心周りの１組のネジ孔と、該１組のネジ孔を左右２方向の各々へ所定寸法だけ移動させた位置に配設された２組の偏在ネジ孔とを、有し、上記鍔部が、上記１組のネジ孔に対応する配置の１組の貫孔を有し、ボルトを上記鍔部の貫孔に通して上記底面板のネジ孔又は偏在ネジ孔に螺合させることにより、上記差込金具を、上記底面板の裏面の中央位置、又は、所定寸法だけ上記２方向へ移動させた偏在位置のいずれかに、択一的に取着可能に構成して、１塁ベース及び３塁ベースとしては大型塁ベース本体がファウルラインから外側へ出ないように配設可能とするとともに、１塁ベース、２塁ベース、３塁ベースに兼用可能に構成したものである。 The large base body includes an insertion part that is inserted into the cylindrical part of an existing embedded metal fitting embedded in the ground, and an insertion metal fitting having a flange connected to the upper end of the insertion part. The bottom plate of the large base body has a set of screw holes around the center of the bottom plate and two sets of eccentric screw holes arranged at positions shifted a predetermined distance in each of the two directions from the set of screw holes. The flange has a set of through holes arranged corresponding to the set of screw holes. By passing a bolt through the through holes of the flange and screwing it into the screw holes or the eccentric screw holes of the bottom plate, the insertion metal fitting can be attached alternatively to either the center position on the back surface of the bottom plate or the eccentric position shifted a predetermined distance in the two directions. As a first base and third base, the large base body can be positioned so that it does not extend outside the foul line, and it can be used for first base, second base, and third base.

また、大型塁ベース本体と、グラウンドに埋込まれた既設埋込金具の筒部に差込む差込部と、該差込部の上端に連設された鍔部を有する差込金具とを、備え、上記大型塁ベース本体の底面板に、該底面板の中心周りの１組のネジ孔と、該１組のネジ孔を前後左右４方向の各々へ所定寸法だけ移動させた位置に配設された４組の偏在ネジ孔とを、有し、上記鍔部が、上記１組のネジ孔に対応する配置の１組の貫孔を有し、ボルトを上記鍔部の貫孔に通して上記底面板のネジ孔又は偏在ネジ孔に螺合させることにより、上記差込金具を、上記底面板の裏面の中央位置、又は、所定寸法だけ上記４方向へ移動させた偏在位置のいずれかに、択一的に取着可能に構成して、１塁ベース及び３塁ベースとしては大型塁ベース本体がファウルラインから外側へ出ないように配設可能とするとともに、１塁ベース、２塁ベース、３塁ベースに兼用可能に構成したものである。
また、大型塁ベース本体と標準塁ベース本体の各辺の長さ寸法の差をＬ₁とすれば、上記所定寸法ΔＬを、ΔＬ＝Ｌ₁／２としたものである。 The large base body includes a large base main body, an insertion fitting having an insertion portion to be inserted into a cylindrical portion of an existing embedded fitting embedded in the ground, and a flange portion connected to the upper end of the insertion portion. The bottom plate of the large base body has a set of screw holes around the center of the bottom plate and four sets of offset screw holes arranged at positions shifted a predetermined dimension in each of four directions, front, back, left and right, from the set of screw holes. The flange portion has a set of through holes arranged corresponding to the set of screw holes. By passing a bolt through the through holes in the flange portion and screwing it into the screw holes or the offset screw holes in the bottom plate, the insertion fitting can be attached alternatively to either the center position on the back surface of the bottom plate or an offset position shifted a predetermined dimension in any of the four directions. As a first base and third base, the large base body can be positioned so that it does not extend outside the foul line, and the large base can be used as a first base, second base and third base.
Furthermore, if the difference in length between the sides of the large base body and the standard base body is _L1 , then the above-mentioned predetermined dimension ΔL is set to ΔL=L ₁ /2.

本発明の塁ベース構造体によれば、大型塁ベース本体を有しながらも既設埋込金具を埋込み直す必要が無い。言い換えると、大型塁ベース本体に対して既設埋込金具をそのままの埋込位置で利用することができる。従って、グラウンドを掘り起こして埋込位置を変更する工事が省略できる。 The base structure of the present invention has a large base body, but does not require the existing embedded fittings to be re-embedded. In other words, the existing embedded fittings can be used in the same embedded position in the large base body. This eliminates the need to dig up the ground and change the embedded position.

本発明の第１の実施の形態を示す説明断面図である。1 is an explanatory cross-sectional view showing a first embodiment of the present invention. 底面板を示す斜視図である。FIG. 差込金具を示す斜視図である。FIG. 埋込金具を示す斜視図である。FIG. 底面板のネジ孔位置を示す説明図である。FIG. 4 is an explanatory diagram showing screw hole positions of the bottom plate. グラウンドの平面図である。FIG. 第２の実施の形態を示す斜視図である。FIG. 11 is a perspective view showing a second embodiment. グラウンドの平面図である。FIG.

以下、図示の実施の形態に基づいて本発明を詳説する。
図１～図３は、本発明の第１の実施の形態を示す。
本発明の塁ベース構造体は、大型塁ベース本体１を備える。本発明に於て、「大型」とは、本発明の出願時に於ける（我国における）規定の寸法よりも大きいことを表すものとする。すなわち、硬式野球では、正方形の一辺が15インチよりも大きいことを表す。また、軟式野球では、正方形の一辺が14インチよりも大きいことを表す。また、本発明に於て、「標準」とは、出願時の規定のものをいう。 The present invention will be described in detail below based on the illustrated embodiments.
1 to 3 show a first embodiment of the present invention.
The base structure of the present invention comprises a large base body 1. In this invention, "large" means that the dimensions are larger than the dimensions prescribed (in Japan) at the time of filing of the application. That is, in hardball baseball, this means that one side of a square is larger than 15 inches. In softball baseball, this means that one side of a square is larger than 14 inches. In addition, in this invention, "standard" means that the dimensions prescribed at the time of filing of the application.

大型塁ベース本体１の底面板２に固着されて、大型塁ベース本体１を、グラウンドに埋込まれた既設埋込金具３（図４参照）に取着するための差込金具４を、備える。差込金具４は、グラウンドに埋込まれた既設埋込金具３の筒部５に差込む差込部６と、差込部６の上端に連設された鍔部７を有する。 The large base base body 1 is fixed to the bottom plate 2 and equipped with an insert fitting 4 for attaching the large base base body 1 to an existing embedded fitting 3 (see Figure 4) embedded in the ground. The insert fitting 4 has an insert portion 6 that is inserted into a cylindrical portion 5 of the existing embedded fitting 3 embedded in the ground, and a flange portion 7 that is connected to the upper end of the insert portion 6.

差込金具４を、大型塁ベース本体１の裏面の前後左右中央位置（図１の上図参照）と、水平面内の一方向へ所定寸法ΔＬだけ移動した偏在位置（図１の下図参照）とに、択一的に取着可能に構成する。具体的には、図２に示すように、大型塁べース本体１の底面板２に、底面板２の中心Ｘ周りの１組の（例えば４つの）ネジ孔８と、１組のネジ孔８を水平面内の一方向へ所定寸法ΔＬだけ移動した位置に配設された１組の偏在ネジ孔９とを、有する。鍔部７が、上記１組のネジ孔８に対応する配置の１組の貫孔10を有する。 The insert fittings 4 are configured to be selectively attached to the back of the large base body 1 at a central position in the front, rear, left and right directions (see the top diagram in FIG. 1) or at an offset position shifted a predetermined dimension ΔL in one direction in the horizontal plane (see the bottom diagram in FIG. 1). Specifically, as shown in FIG. 2, the bottom plate 2 of the large base body 1 has a set of (e.g., four) screw holes 8 around the center X of the bottom plate 2, and a set of offset screw holes 9 arranged at a position shifted a predetermined dimension ΔL from the set of screw holes 8 in one direction in the horizontal plane. The flange portion 7 has a set of through holes 10 arranged in a manner corresponding to the set of screw holes 8.

図５は、ネジ孔８の配設位置を示す説明図である。すなわち、底面板２の中心Ｘ周りの１組のネジ孔８の配設位置をバツ印にて示す。また、１組のネジ孔８を水平面内の一方向（図５の左方向）へ所定寸法ΔＬだけ移動した位置に配設された１組の偏在ネジ孔９の配設位置を黒丸にて示す。 Figure 5 is an explanatory diagram showing the positions of the screw holes 8. That is, the positions of a set of screw holes 8 around the center X of the bottom plate 2 are indicated by crosses. In addition, the positions of a set of unevenly distributed screw holes 9, which are arranged at a position shifted by a predetermined dimension ΔL in one direction in the horizontal plane (to the left in Figure 5), are indicated by black circles.

ボルト13を鍔部７（図１・図３参照）の貫孔10に通して底面板２のネジ孔８又は偏在ネジ孔９に螺合させることにより、差込金具４を、底面板２の中央位置と、所定寸法ΔＬだけ一方向へ移動した偏在位置とに、択一的に取着可能に構成する。大型塁ベース本体１と標準塁ベース本体12の各辺の長さ寸法の差をＬ₁とすれば、上記所定寸法ΔＬを、ΔＬ＝Ｌ₁／２とする。 By passing bolt 13 through hole 10 in flange 7 (see Figures 1 and 3) and screwing it into screw hole 8 or offset screw hole 9 in bottom plate 2, insert fitting 4 can be attached alternatively to the center of bottom plate 2 or to an offset position shifted in one direction by a predetermined dimension ΔL. If the difference in length between the sides of large base body 1 and standard base body 12 is _L1 , then the predetermined dimension ΔL is ΔL = _L1 /2.

上述の構成により、図６の２点鎖線に示すように、１塁ベース又は３塁ベースとしては大型塁ベース本体１がファウルラインＦから外側へ出ないように配設可能に構成するとともに、１塁ベース、２塁ベース、３塁ベースに兼用可能である。すなわち、図６の（各塁の）実線は、標準塁ベース本体12の配置を示す。そして、１塁ベース及び３塁ベースとしては、差込金具４（図１・図３参照）を底面板２の偏在位置に取着するとともに、２塁ベースとしては、差込金具４を底面板２の中央位置に取着することにより、既設埋込金具３（図４参照）はそのままの埋込位置で、図６の２点鎖線に示すように、本発明の塁ベース構造体を規定位置に配設することができる。図２の11は、ファウルラインＦに合わせる基準辺を示す。 As shown by the two-dot chain line in Figure 6, the large base body 1 can be arranged so that it does not extend beyond the foul line F when used as a first or third base, and can also be used as a first, second, and third base. In other words, the solid lines in Figure 6 (for each base) show the arrangement of the standard base body 12. For the first and third base, the insert fittings 4 (see Figures 1 and 3) are attached to the offset position of the bottom plate 2, and for the second base, the insert fittings 4 are attached to the center position of the bottom plate 2, so that the existing embedded fittings 3 (see Figure 4) can be left in their embedded position as is, and the base structure of the present invention can be arranged in the specified position as shown by the two-dot chain line in Figure 6. 11 in Figure 2 shows the reference edge that is aligned with the foul line F.

図７は、第２の実施の形態を示す。大型塁ベース本体１（図１参照）の底面板２に、底面板２の中心Ｘ周りの１組のネジ孔８と、１組のネジ孔８を前後左右４方向の各々へ所定寸法ΔＬだけ移動させた位置に配設された４組の偏在ネジ孔９とを、有する。図７の同一記号が、１組のネジ孔８又は１組（同一組）の偏在ネジ孔９の配設位置を示す。例えば、４つの三角は、右方向へ所定寸法ΔＬだけ移動させた１組の偏在ネジ孔９の配設位置を示す。 Figure 7 shows a second embodiment. The bottom plate 2 of the large base body 1 (see Figure 1) has a set of screw holes 8 around the center X of the bottom plate 2, and four sets of unevenly distributed screw holes 9 arranged at positions shifted from the set of screw holes 8 by a predetermined dimension ΔL in each of four directions: forward, backward, left, and right. The same symbols in Figure 7 indicate the positions of a set of screw holes 8 or a set (the same set) of unevenly distributed screw holes 9. For example, four triangles indicate the positions of a set of unevenly distributed screw holes 9 shifted to the right by the predetermined dimension ΔL.

ボルト13を鍔部７（図１・図３参照）の貫孔10に通して底面板２のネジ孔８又は偏在ネジ孔９に螺合させることにより、差込金具４を、底面板２の中央位置、又は、所定寸法ΔＬだけ４方向へ移動させた偏在位置のいずれかに、択一的に取着可能に構成する。その他の構成は、第１の実施の形態と同様である。 By passing the bolt 13 through the through hole 10 of the flange 7 (see Figs. 1 and 3) and screwing it into the screw hole 8 or the offset screw hole 9 of the bottom plate 2, the insert fitting 4 can be selectively attached to either the center position of the bottom plate 2 or an offset position shifted by a predetermined dimension ΔL in four directions. The other configurations are the same as those of the first embodiment.

次に、第３の実施の形態について説明する（図示省略）。
大型塁ベース本体１の底面板２に、底面板２の中心Ｘ周りの１組のネジ孔８と、１組のネジ孔８を左右２方向の各々へ所定寸法ΔＬだけ移動させた位置に配設された２組の偏在ネジ孔９とを、有する。ボルト13を鍔部７の貫孔10に通して底面板２のネジ孔８又は偏在ネジ孔９に螺合させることにより、差込金具４を、底面板２の中央位置、又は、所定寸法ΔＬだけ２方向へ移動させた偏在位置のいずれかに、択一的に取着可能に構成する。その他の構成は、第１の実施の形態と同様である。 Next, a third embodiment will be described (not shown).
The bottom plate 2 of the large base body 1 has a set of screw holes 8 around the center X of the bottom plate 2, and two sets of offset screw holes 9 disposed at positions shifted a predetermined dimension ΔL in each of two directions from the set of screw holes 8. By passing a bolt 13 through a through hole 10 of the flange 7 and screwing it into the screw holes 8 or the offset screw holes 9 in the bottom plate 2, the insert fitting 4 can be attached selectively to either the center position of the bottom plate 2 or an offset position shifted by the predetermined dimension ΔL in the two directions. The other configurations are the same as those of the first embodiment.

なお、本発明は、設計変更可能であって、例えば、水平面内の（左右方向に対して）斜め45°方向に移動した偏在位置に偏在ネジ孔９を有するも良い。 The present invention is open to design modifications, and may have, for example, an offset screw hole 9 at an offset position shifted at an angle of 45° (relative to the left and right direction) within the horizontal plane.

以上のように、本発明は、大型塁ベース本体１と、該大型塁ベース本体１の底面板２に固着されて、該大型塁ベース本体１を、グラウンドに埋込まれた既設埋込金具３に取着するための差込金具４とを、備え、上記差込金具４を、上記大型塁ベース本体１の裏面の前後左右中央位置と、水平面内の一方向へ所定寸法ΔＬだけ移動した偏在位置とに、択一的に取着可能に構成して、１塁ベース及び３塁ベースとしては大型塁ベース本体１がファウルラインＦから外側へ出ないように配設可能とするとともに、１塁ベース、２塁ベース、３塁ベースに兼用可能に構成したので、大型塁ベース本体１を有しながらも既設埋込金具３を埋込み直す必要が無い。言い換えると、大型塁ベース本体１に対して既設埋込金具３をそのままの埋込位置で利用することができる。 As described above, the present invention comprises a large base body 1 and an insert fitting 4 that is fixed to the bottom plate 2 of the large base body 1 and is used to attach the large base body 1 to an existing embedded fitting 3 embedded in the ground. The insert fitting 4 is configured to be attached alternatively to the center position in the front, back, left and right directions on the back surface of the large base body 1, or to an offset position shifted by a predetermined dimension ΔL in one direction in the horizontal plane. As a result, the large base body 1 can be positioned so that it does not extend beyond the foul line F as a first base and third base, and can be used for first base, second base, and third base. Therefore, even if the large base body 1 is used, there is no need to re-embed the existing embedded fitting 3. In other words, the existing embedded fitting 3 can be used in the large base body 1 in its original embedded position.

また、大型塁ベース本体１と、グラウンドに埋込まれた既設埋込金具３の筒部５に差込む差込部６と、該差込部６の上端に連設された鍔部７を有する差込金具４とを、備え、上記大型塁ベース本体１の底面板２に、該底面板２の中心Ｘ周りの１組のネジ孔８と、該１組のネジ孔８を水平面内の一方向へ所定寸法ΔＬだけ移動した位置に配設された１組の偏在ネジ孔９とを、有し、上記鍔部７が、上記１組のネジ孔８に対応する配置の１組の貫孔10を有し、ボルト13を上記鍔部７の貫孔10に通して上記底面板２のネジ孔８又は偏在ネジ孔９に螺合させることにより、上記差込金具４を、上記底面板２裏面のの中央位置と、所定寸法ΔＬだけ上記一方向へ移動した偏在位置とに、択一的に取着可能に構成して、１塁ベース及び３塁ベースとしては大型塁ベース本体１がファウルラインＦから外側へ出ないように配設可能とするとともに、１塁ベース、２塁ベース、３塁ベースに兼用可能に構成したので、大型塁ベース本体１を有しながらも既設埋込金具３を埋込み直す必要が無い。言い換えると、大型塁ベース本体１に対して既設埋込金具３をそのままの埋込位置で利用することができる。 The large base base includes a main body 1 of the large base, an insertion portion 6 that is inserted into a cylindrical portion 5 of an existing embedded metal fitting 3 embedded in the ground, and an insertion fitting 4 having a flange portion 7 connected to the upper end of the insertion portion 6. The bottom plate 2 of the large base base includes a set of screw holes 8 around the center X of the bottom plate 2, and a set of eccentric screw holes 9 arranged at a position shifted by a predetermined dimension ΔL in one direction in a horizontal plane from the set of screw holes 8. The flange portion 7 has a set of through holes 10 arranged in a position corresponding to the set of screw holes 8, and a bolt 13 is inserted into the through holes 10 of the flange portion 7. By threading the metal fitting 4 through the base plate 2 and screwing it into the screw hole 8 or the offset screw hole 9, the metal fitting 4 can be attached alternatively to the center position of the bottom plate 2 back surface and an offset position shifted in one direction by a predetermined dimension ΔL. As a result, the large base base body 1 can be arranged so that it does not extend beyond the foul line F as a first base and third base, and can be used for first base, second base, and third base. Therefore, even if the large base base body 1 is used, there is no need to re-embed the existing embedded metal fitting 3. In other words, the existing embedded metal fitting 3 can be used in the large base base body 1 in its original embedded position.

また、大型塁ベース本体１と、グラウンドに埋込まれた既設埋込金具３の筒部５に差込む差込部６と、該差込部６の上端に連設された鍔部７を有する差込金具４とを、備え、上記大型塁ベース本体１の底面板２に、該底面板２の中心Ｘ周りの１組のネジ孔８と、該１組のネジ孔８を左右２方向の各々へ所定寸法ΔＬだけ移動させた位置に配設された２組の偏在ネジ孔９とを、有し、上記鍔部７が、上記１組のネジ孔８に対応する配置の１組の貫孔10を有し、ボルト13を上記鍔部７の貫孔10に通して上記底面板２のネジ孔８又は偏在ネジ孔９に螺合させることにより、上記差込金具４を、上記底面板２の裏面の中央位置、又は、所定寸法ΔＬだけ上記２方向へ移動させた偏在位置のいずれかに、択一的に取着可能に構成して、１塁ベース及び３塁ベースとしては大型塁ベース本体１がファウルラインＦから外側へ出ないように配設可能とするとともに、１塁ベース、２塁ベース、３塁ベースに兼用可能に構成したので、大型塁ベース本体１を有しながらも既設埋込金具３を埋込み直す必要が無い。言い換えると、大型塁ベース本体１に対して既設埋込金具３をそのままの埋込位置で利用することができる。また、特に１塁及び３塁に於て、大型塁ベース本体１の向きを（２パターンに）変更して設置することができるので、特定の辺のみが損傷することを防止し、長期にわたって使用することができる。 The large base base includes a main body 1 of the large base, an insertion portion 6 that is inserted into a cylindrical portion 5 of an existing embedded metal fitting 3 embedded in the ground, and an insertion fitting 4 having a flange portion 7 connected to the upper end of the insertion portion 6. The bottom plate 2 of the large base base includes a set of screw holes 8 around the center X of the bottom plate 2, and two sets of eccentrically distributed screw holes 9 arranged at positions shifted by a predetermined dimension ΔL in each of the two directions to the left and right from the set of screw holes 8. The flange portion 7 has a set of through holes 10 arranged in a manner corresponding to the set of screw holes 8. A bolt 13 is passed through the through holes 10 of the flange portion 7. By screwing the metal fitting 4 into the screw hole 8 or the eccentric screw hole 9 of the bottom plate 2, the metal fitting 4 can be selectively attached to either the center position on the back surface of the bottom plate 2 or the eccentric position shifted by a predetermined dimension ΔL in the two directions. As a result, the large base base body 1 can be arranged so that it does not extend outside the foul line F as a first base and third base, and can be used for first base, second base, and third base. Therefore, even if the large base base body 1 is used, there is no need to re-embed the existing metal fitting 3. In other words, the existing metal fitting 3 can be used in the large base base body 1 in the same embedded position. In addition, the orientation of the large base base body 1 can be changed (to two patterns) for installation, particularly at first base and third base, so that damage to only a specific side can be prevented and it can be used for a long time.

また、大型塁ベース本体１と、グラウンドに埋込まれた既設埋込金具３の筒部５に差込む差込部６と、該差込部６の上端に連設された鍔部７を有する差込金具４とを、備え、上記大型塁ベース本体１の底面板２に、該底面板２の中心Ｘ周りの１組のネジ孔８と、該１組のネジ孔８を前後左右４方向の各々へ所定寸法ΔＬだけ移動させた位置に配設された４組の偏在ネジ孔９とを、有し、上記鍔部７が、上記１組のネジ孔８に対応する配置の１組の貫孔10を有し、ボルト13を上記鍔部７の貫孔10に通して上記底面板２のネジ孔８又は偏在ネジ孔９に螺合させることにより、上記差込金具４を、上記底面板２の裏面の中央位置、又は、所定寸法ΔＬだけ上記４方向へ移動させた偏在位置のいずれかに、択一的に取着可能に構成して、１塁ベース及び３塁ベースとしては大型塁ベース本体１がファウルラインＦから外側へ出ないように配設可能とするとともに、１塁ベース、２塁ベース、３塁ベースに兼用可能に構成したので、大型塁ベース本体１を有しながらも既設埋込金具３を埋込み直す必要が無い。言い換えると、大型塁ベース本体１に対して既設埋込金具３をそのままの埋込位置で利用することができる。また、特に１塁及び３塁に於て、大型塁ベース本体１の向きを（４パターンに）変更して設置することができるので、特定の辺のみが損傷することを防止し、長期にわたって使用することができる。 The large base base includes a main body 1 of the large base, an insertion portion 6 that is inserted into a cylindrical portion 5 of an existing embedded metal fitting 3 embedded in the ground, and an insertion fitting 4 having a flange portion 7 connected to the upper end of the insertion portion 6. The bottom plate 2 of the large base base includes a set of screw holes 8 around the center X of the bottom plate 2, and four sets of eccentrically distributed screw holes 9 arranged at positions shifted by a predetermined dimension ΔL in each of the four directions (front, back, left, right, and right) from the set of screw holes 8. The flange portion 7 has a set of through holes 10 arranged in a manner corresponding to the set of screw holes 8, and a bolt 13 is inserted through the through holes 10 of the flange portion 7. By screwing the metal fitting 4 into the screw hole 8 or the eccentric screw hole 9 of the bottom plate 2, the metal fitting 4 can be selectively attached to either the center position on the back surface of the bottom plate 2 or the eccentric position shifted by a predetermined dimension ΔL in the four directions. As a result, the large base base body 1 can be arranged so that it does not extend outside the foul line F as a first base and third base, and can be used for first base, second base, and third base. Therefore, even if the large base base body 1 is used, there is no need to re-embed the existing metal fitting 3. In other words, the existing metal fitting 3 can be used in the large base base body 1 in the same embedded position. In addition, the orientation of the large base base body 1 can be changed (in four patterns) for installation, particularly at first base and third base, so that damage to only a specific side can be prevented and it can be used for a long time.

また、大型塁ベース本体１と標準塁ベース本体12の各辺の長さ寸法の差をＬ₁とすれば、上記所定寸法ΔＬを、ΔＬ＝Ｌ₁／２としたので、差込金具４を、左右前後方向のいずれかにΔＬだけ中央位置から移動した偏在位置に取着して、大型塁ベース本体１を、ファウルラインに合わせた規定位置に配設することができる。 Furthermore, if the difference in length between the large base body 1 and the standard base body 12 is _L1 , then the above-mentioned specified dimension ΔL is set to ΔL = _L1 /2, so that the large base body 1 can be disposed in a specified position aligned with the foul line by attaching the insert fitting 4 to an offset position shifted from the central position by ΔL in either the left/right or front/rear direction.

１大型塁ベース本体
２底面板
３既設埋込金具
４差込金具
５筒部
６差込部
７鍔部
８ネジ孔
９偏在ネジ孔
10 貫孔
12 標準塁ベース本体
13 ボルト
Ｆファウルライン
Ｌ₁ 大型塁ベース本体と標準塁ベース本体の各辺の長さ寸法の差
ΔＬ所定寸法
Ｘ中心 REFERENCE SIGNS LIST 1 Large base body 2 Bottom plate 3 Existing embedded metal fitting 4 Insert metal fitting 5 Cylinder portion 6 Insert portion 7 Flange portion 8 Screw hole 9 Unevenly distributed screw hole
10 Through hole
12 Standard base body
13 Bolt F Foul line _L Difference in length of each side of the large base body and the standard base body ΔL Prescribed dimension X Center

Claims

A large base body (1),
and an insertion fitting (4) fixed to a bottom plate (2) of the large base body (1) for attaching the large base body (1) to an existing embedment fitting (3) embedded in the ground.
The base structure is characterized in that the insert fittings (4) can be selectively attached to either the front, rear, left and right central positions on the back surface of the large base body (1) or an offset position shifted a predetermined dimension (ΔL) in one direction in a horizontal plane, so that the large base body (1) can be positioned so as not to extend beyond the foul line (F) when used as a first base or third base, and can be used for first base, second base and third base.

A large base body (1),
The present invention comprises an insertion fitting (4) having an insertion portion (6) to be inserted into a tubular portion (5) of an existing embedded fitting (3) embedded in the ground, and a flange portion (7) connected to the upper end of the insertion portion (6),
The large base body (1) has a bottom plate (2) having a set of screw holes (8) around a center (X) of the bottom plate (2) and a set of eccentric screw holes (9) disposed at a position shifted by a predetermined dimension (ΔL) in one direction in a horizontal plane from the set of screw holes (8).
The flange portion (7) has a pair of through holes (10) arranged to correspond to the pair of screw holes (8),
A bolt (13) is passed through the through hole (10) of the flange portion (7) and screwed into the screw hole (8) or the offset screw hole (9) of the bottom plate (2), so that the insertion fitting (4) can be alternatively attached to a central position on the back surface of the bottom plate (2) or to an offset position shifted in one direction by a predetermined dimension (ΔL). This base structure is characterized in that the large base body (1) can be disposed so as not to extend outside the foul line (F) as a first base or third base, and can be used for first base, second base, and third base.

A large base body (1),
The present invention comprises an insertion fitting (4) having an insertion portion (6) to be inserted into a tubular portion (5) of an existing embedded fitting (3) embedded in the ground, and a flange portion (7) connected to the upper end of the insertion portion (6),
The large base body (1) has a bottom plate (2) having a set of screw holes (8) around the center (X) of the bottom plate (2) and two sets of offset screw holes (9) disposed at positions shifted by a predetermined dimension (ΔL) in each of two directions, left and right, from the set of screw holes (8).
The flange portion (7) has a pair of through holes (10) arranged to correspond to the pair of screw holes (8),
The base structure is characterized in that the insert fitting (4) can be selectively attached to either the center position on the back surface of the bottom plate (2) or to an offset position shifted by a predetermined dimension (ΔL) in either of the two directions by passing a bolt (13) through the through hole (10) of the flange portion (7) and screwing it into the screw hole (8) or the offset screw hole (9) of the bottom plate (2). As a result, the large base body (1) can be positioned so as not to extend beyond the foul line (F) when used as a first base or third base, and can be used for both first base, second base, and third base.

A large base body (1),
The present invention comprises an insertion fitting (4) having an insertion portion (6) to be inserted into a tubular portion (5) of an existing embedded fitting (3) embedded in the ground, and a flange portion (7) connected to the upper end of the insertion portion (6),
The large base body (1) has a bottom plate (2) having a set of screw holes (8) around the center (X) of the bottom plate (2) and four sets of unevenly distributed screw holes (9) disposed at positions shifted by a predetermined dimension (ΔL) in each of four directions, front, back, left and right, from the set of screw holes (8).
The flange portion (7) has a pair of through holes (10) arranged to correspond to the pair of screw holes (8),
A bolt (13) is passed through the through hole (10) of the flange portion (7) and screwed into the screw hole (8) or the offset screw hole (9) of the bottom plate (2), so that the insertion fitting (4) can be alternatively attached to either the center position on the back surface of the bottom plate (2) or an offset position shifted by a predetermined dimension (ΔL) in any of the four directions. This base structure is characterized in that the large base body (1) can be disposed so as not to extend outside the foul line (F) when used as a first base or third base, and can be used for both first base, second base, and third base.

5. A base structure according to claim _1, 2, 3 or 4, wherein the difference in length between the large base body (1) and the standard base body (12) is (L ₁ ), and the predetermined dimension (ΔL) is ΔL = L 1 /2.