JP3117112U

JP3117112U - Snow fence

Info

Publication number: JP3117112U
Application number: JP2005007931U
Authority: JP
Inventors: 勝宏宮澤
Original assignee: 勝宏宮澤
Priority date: 2005-09-28
Filing date: 2005-09-28
Publication date: 2006-01-05
Anticipated expiration: 2015-09-28

Abstract

【課題】支持機構の基体に設けた挿通筒体及び駒鉤体に複数個の脚杆体を挿通して地面に立設し、覆体を止め金具により架設することになり、しかして、降雪により脚杆体や基体に外力が掛かっても、駒鉤体は挿通筒体内における脚杆体の上向き移動を阻止する自在鉤作用をなすため、各脚杆体の基体に対する位置関係を確実に固定保持することができる。
【解決手段】花木等を雪から保護するための覆体６の支柱となる複数個の脚杆体１及び脚杆体を地面に立設支持可能な支持機構２を備えてなり、支持機構は、複数個の脚杆体を配列するための基体３と、基体に設けられ、複数個の脚杆体を上下移動自在に挿通可能な挿通筒体４と、挿通筒体内における脚杆体の下向き移動は許容するが上向き移動は阻止する自在鉤作用をなすための解除自在な駒鉤体５とからなる。
【選択図】図１
A plurality of leg frames are inserted into an insertion tube body and a piece frame body provided on a base body of a support mechanism and are erected on the ground, and a cover body is erected with a stopper metal. Even if an external force is applied to the leg frame or the base body, the piece frame body can freely move the leg frame in the insertion cylinder so as to prevent upward movement, so that the positional relationship of each leg frame relative to the base body can be reliably fixed and held. .
SOLUTION: A plurality of leg bodies 1 serving as support columns of a covering body 6 for protecting flower trees and the like from snow and a support mechanism 2 capable of standingly supporting the leg body on the ground are provided. The base body 3 for arranging the individual leg rods, the insertion cylinder 4 provided on the base and allowing the plurality of leg rods to be inserted in a vertically movable manner, and the downward movement of the leg rods within the insertion cylinder are allowed. It consists of a freely-releasable piece frame 5 for the purpose of preventing the upward movement.
[Selection] Figure 1

Description

本考案は例えば庭木、草花、農作物等を雪から保護する際に用いられる雪囲いに関するものである。 The present invention relates to a snow enclosure used when, for example, garden trees, flowers, agricultural products, and the like are protected from snow.

従来、この種の雪囲いとして、竹や合成樹脂、金属パイプなどの複数個の脚杆体を所定配列で支持立設するための基体を備え、立木、花、生垣の花木を雪から保護する構造のものが知られている。
特開平６−５３０１２号公報特開２００２−１２５４８７号公報 Conventionally, this type of snow fence has a base for supporting and standing a plurality of leg frames such as bamboo, synthetic resin, and metal pipes in a predetermined arrangement, and has a structure that protects trees, flowers and hedges from snow. Things are known.
JP-A-6-53012 JP 2002-125487 A

しかしながら、これら従来構造の場合、縄やロープの縛着作業及び脚杆体の配置作業は熟練を要する大変な作業となることがあり、又、取り外しも手間の掛かる厄介な作業となることがあるという不都合を有している。 However, in the case of these conventional structures, the work of tying ropes and ropes and the work of arranging the leg rods can be difficult work requiring skill, and the removal can also be troublesome work that takes time. Has inconvenience.

本考案はこれらの不都合を解決することを目的とするもので、本考案のうちで、請求項１記載の考案は、花木等を雪から保護するための覆体の支柱となる複数個の脚杆体及び該脚杆体を地面に立設支持可能な支持機構を備えてなり、上記支持機構は、上記複数個の脚杆体を配列するための基体と、該基体に設けられ、上記複数個の脚杆体を上下移動自在に挿通可能な挿通筒体と、該挿通筒体内における該脚杆体の下向き移動は許容するが上向き移動は阻止する自在鉤作用をなすための解除自在な駒鉤体とからなることを特徴とする雪囲いにある。 The present invention aims to solve these disadvantages. Among the present inventions, the invention according to claim 1 is a plurality of legs which serve as support columns for protecting flower trees and the like from snow. And a support mechanism capable of standing and supporting the leg frame on the ground. The support mechanism is provided on the base for arranging the plurality of leg frames, and the plurality of legs. An insertion cylinder that can be inserted through the casing in a vertically movable manner, and a releasable piece casing that allows a downward movement of the leg rod in the insertion cylinder but prevents an upward movement. It is in a snow fence characterized by.

又、請求項２記載の考案は、上記基体は水平円環状に形成され、該基体の周囲に間隔を置いて、複数個の挿通筒体及び駒鉤体を設けてなることを特徴とするものであり、又、請求項３記載の考案は、上記基体は水平杆状に形成され、該基体の長手方向に間隔を置いて、左右位置にそれぞれ複数個の挿通筒体及び駒鉤体を設けてなることを特徴とするものである。 Further, the invention described in claim 2 is characterized in that the base is formed in a horizontal ring shape, and a plurality of insertion cylinders and pieces are provided at intervals around the base. Further, in the invention described in claim 3, the base is formed in a horizontal bowl shape, and a plurality of insertion cylinders and a piece casing are provided at left and right positions, respectively, spaced apart in the longitudinal direction of the base. It is characterized by.

本考案は上述の如く、請求項１記載の考案にあっては、支持機構の基体に設けた挿通筒体及び駒鉤体に複数個の脚杆体を挿通して地面に立設し、覆体を止め金具により架設することになり、しかして、降雪により脚杆体や基体に外力が掛かっても、駒鉤体は挿通筒体内における脚杆体の上向き移動を阻止する自在鉤作用をなすため、各脚杆体の基体に対する位置関係を確実に固定保持することができ、花木等を雪から保護するための覆体の支柱となる各脚杆体からなる構築体の姿勢を保持することができ、それだけ、雪囲い性を高めることができ、かつ、駒鉤体は挿通筒体内における脚杆体の下向き移動は許容するので脚杆体と挿通筒体との相対位置を容易に変更することができ、かつ、駒鉤体の自在鉤作用を解除することができ、各脚杆体の基体に対する位置関係を容易に変更することができ、花木等の高さや大きさ等に対する融通性を高めることができる。 As described above, the present invention is the device according to claim 1, wherein a plurality of leg rods are inserted into the insertion cylinder and the piece frame provided on the base body of the support mechanism, and the cover is erected on the ground. However, even if an external force is applied to the leg frame or the base body due to snowfall, the frame frame has a free-running action that prevents the leg frame from moving upward in the insertion cylinder. The positional relationship of the frame with respect to the base body can be securely fixed, and the posture of the structure consisting of each leg frame that serves as a support column for protecting the flowers and trees from snow can be maintained. And the piece frame allows downward movement of the leg frame in the insertion cylinder, so that the relative position between the leg frame and the insertion cylinder can be easily changed, and the piece frame Each leg frame can be released Can be easily changed positional relationship to the substrate, it is possible to increase the flexibility with respect to the height and size of the equal flowering trees.

又、請求項２記載の考案にあっては、上記基体は水平円環状に形成され、基体の周囲に間隔を置いて、複数個の挿通筒体及び駒鉤体を設けてなるから、円錐状の構築体を構成することができ、花木等の周囲を覆うことができ、又、請求項３記載の考案にあっては、上記基体は水平杆状に形成され、基体の長手方向に間隔を置いて、左右位置にそれぞれ複数個の挿通筒体及び駒鉤体を設けてなるから、三角柱状の構築体を構成することができ、並列する花木等の周囲を覆うことができる。 Further, in the invention according to claim 2, the base is formed in a horizontal ring shape, and is provided with a plurality of insertion cylinders and pieces of frames at intervals around the base. In the device according to claim 3, the base body is formed in a horizontal bowl shape, and is spaced apart in the longitudinal direction of the base body. Since a plurality of insertion cylinders and piece frames are provided in the left and right positions, a triangular prism-shaped structure can be formed, and the surroundings of flower trees and the like that are arranged in parallel can be covered.

図１乃至図１０は本考案の実施の形態例を示し、図１乃至図４は第一形態例、図５乃至図７は第二形態例、図８乃至図１０は第三形態例である。 1 to 10 show an embodiment of the present invention, FIGS. 1 to 4 show a first embodiment, FIGS. 5 to 7 show a second embodiment, and FIGS. 8 to 10 show a third embodiment. .

図１乃至図４の第一形態例において、１は脚杆体であって、この場合、六本の木材角柱からなる。 In the first embodiment shown in FIGS. 1 to 4, reference numeral 1 denotes a leg frame, which in this case consists of six wooden prisms.

２は支持機構であって、上記複数個の脚杆体１・・を配列するための基体３と、基体３に設けられ、上記複数個の脚杆体１・・を上下移動自在に挿通可能な挿通筒体４と、上記挿通筒体４内における脚杆体１・・の下向き移動は許容するが、図３の矢印方向である、上向き移動は阻止する自在鉤作用をなすための駒鉤体５とからなる。すなわち、図３の如く、脚杆体１の上向き移動により駒鉤体５は想像線位置から実線位置へ支持軸４ｄと遊孔４ｃとの嵌合部分を中心にして上向き揺動し、脚杆体１の外周面と駒鉤体５の内面角部とが相互に圧接され、この圧接係止により自在鉤作用が営まれ、これにより挿通筒体４内における脚杆体１・・の下向き移動は許容するが、上向き移動は阻止するという自在鉤作用をなすことになる。 Reference numeral 2 denotes a support mechanism, which is provided on the base 3 for arranging the plurality of leg rods 1... And is inserted through the plurality of leg rods 1. From the cylindrical body 4 and the frame body 5 for allowing the downward movement of the leg frame 1 in the insertion cylindrical body 4 but allowing the upward movement in the direction of the arrow in FIG. Become. That is, as shown in FIG. 3, the upward movement of the leg housing 1 causes the frame housing 5 to swing upward from the imaginary line position to the solid line position around the fitting portion between the support shaft 4d and the free hole 4c. The outer peripheral surface of the frame and the inner corner of the piece frame 5 are pressed against each other, and a free rod action is performed by this pressure lock, thereby allowing downward movement of the leg frame 1 in the insertion tube 4. In this way, the upward movement is prevented.

この場合、上記基体３は水平円環状に形成され、この基体３の外周面に間隔を置いて、六個の取付片３ａを六等配上位置に取り付け、各取付片３ａに脚杆体１を上下移動自在に挿通可能な角筒状の挿通筒体４を取付片４ａと取付片３ａとをボルトＢ及びナットＮにより傾斜角度調節自在に連結固定し、六個の挿通筒体４のうちの三個の挿通筒体４の側面に支持片４ｂ・４ｂを取付け、支持片４ｂ・４ｂに遊孔４ｃ・４ｃを形成し、各遊孔４ｃ・４ｃ間に支持軸４ｄを遊動自在に架設し、支持軸４ｄに角筒状の駒鉤体５を固着し、駒鉤体５を支持軸４ｄと遊孔４ｃとの嵌合部分を中心にして上下揺動自在に設け、挿通筒体４に挿通筒体４の軸線に直交する方向より下方への駒鉤体５の揺動を規制する規制凸部４ｅを形成して構成している。 In this case, the base body 3 is formed in a horizontal ring shape, and six attachment pieces 3a are attached to the six equidistant positions at intervals on the outer peripheral surface of the base body 3, and the leg frame 1 is attached to each attachment piece 3a. Of the six insertion cylinders 4, a rectangular tube-like insertion cylinder 4 that can be inserted in a vertically movable manner is connected and fixed to the attachment piece 4 a and the attachment piece 3 a with a bolt B and a nut N so that the inclination angle can be adjusted. Support pieces 4b and 4b are attached to the side surfaces of the three insertion cylinders 4, free holes 4c and 4c are formed in the support pieces 4b and 4b, and a support shaft 4d is movably installed between the free holes 4c and 4c. The rectangular tube-shaped piece frame 5 is fixed to the support shaft 4d, and the piece frame 5 is provided to be swingable up and down around the fitting portion between the support shaft 4d and the free hole 4c. A restricting convex portion 4e for restricting the swinging of the frame housing 5 from the direction perpendicular to the axis of the insertion cylinder 4 is formed.

６は覆体であって、この場合、上記脚杆体１の外面に金属製の止め金具７を取付け、止め金具７の止鉤部７ａ・７ａ間に木材からなる板状の覆体６を架設するようにしている。 Reference numeral 6 denotes a cover. In this case, a metal stopper 7 is attached to the outer surface of the leg member 1, and a plate-like cover 6 made of wood is installed between the stoppers 7a and 7a of the stopper 7. Like to do.

この実施の第一形態例は上記構成であるから、支持機構２の基体３に設けた挿通筒体４及び駒鉤体５に複数個の脚杆体１を挿通して地面に立設し、覆体６を止め金具７により架設することになり、しかして、降雪により脚杆体１や基体３に外力が掛かっても、駒鉤体５は挿通筒体４内における脚杆体１の上向き移動を阻止する自在鉤作用をなすため、各脚杆体１の基体３に対する位置関係を確実に固定保持することができ、花木等Ｗを雪から保護するための覆体の支柱となる各脚杆体１からなる構築体の姿勢を保持することができ、それだけ、雪囲い性を高めることができ、かつ、駒鉤体５は挿通筒体４内における脚杆体１の下向き移動は許容するので脚杆体１と挿通筒体４との相対位置を容易に変更することができ、かつ、駒鉤体５を図３の実線位置から想像線位置へと下向き回動させることにより駒鉤体５の自在鉤作用を解除することができ、各脚杆体１の基体３に対する位置関係を容易に変更することができ、花木等Ｗの高さや大きさ等に対する融通性を高めることができる。 Since the first embodiment of the present embodiment has the above-described configuration, the plurality of leg rods 1 are inserted into the insertion tube 4 and the piece frame 5 provided on the base 3 of the support mechanism 2 so as to stand on the ground. The body 6 is installed by the stopper 7. However, even if an external force is applied to the leg frame 1 or the base body 3 due to snowfall, the frame body 5 prevents the upward movement of the leg frame 1 in the insertion cylinder 4. In order to perform the free rod action, the positional relationship of each leg rod 1 with respect to the base body 3 can be securely fixed, and each leg rod 1 serves as a cover column for protecting the flower tree W from snow. The posture of the body can be maintained, the snow enclosure performance can be improved, and the piece frame 5 allows the downward movement of the leg frame 1 in the insertion tube 4 so that the leg frame 1 and the insertion tube The relative position with respect to 4 can be easily changed, and the frame 5 is shown in FIG. By rotating downward from the solid line position to the imaginary line position, the free rod action of the piece frame 5 can be released, and the positional relationship of each leg frame 1 with respect to the base body 3 can be easily changed. Flexibility with respect to height, size, etc. can be increased.

この場合、上記基体３は水平円環状に形成され、基体３の周囲に間隔を置いて、複数個の挿通筒体４及び駒鉤体５を設けてなるから、円錐状の構築体を構成することができ、花木等Ｗの周囲を覆うことができる。 In this case, the base body 3 is formed in a horizontal annular shape, and is provided with a plurality of insertion cylinders 4 and a frame body 5 at intervals around the base body 3, so that a conical structure is formed. It is possible to cover the circumference of W such as a flowering tree.

図５乃至図７の第二形態例は別例構造を示し、この場合、脚杆体１として、上記第一形態例同様に、木材角柱が用いられている。 The second embodiment shown in FIGS. 5 to 7 shows another structure. In this case, a wood prism is used as the leg frame 1 as in the first embodiment.

２は支持機構であって、上記複数個の脚杆体１・・を配列するための基体３と、基体３に設けられ、上記複数個の脚杆体１・・を上下移動自在に挿通可能な挿通筒体４と、上記挿通筒体４内における脚杆体１・・の下向き移動は許容するが上向き移動は阻止する自在鉤作用をなすための駒鉤体５とからなる。 Reference numeral 2 denotes a support mechanism, which is provided on the base 3 for arranging the plurality of leg rods 1... And is inserted through the plurality of leg rods 1. The cylindrical body 4 and the frame body 5 for allowing a free movement of the leg housing 1 in the insertion tubular body 4 to allow downward movement but prevent upward movement.

この場合、上記基体３は丸パイプ３ｂ及び丸パイプ３ｂが挿通固定される長尺丸パイプからなる水平杆Ｔからなり、この基体３の長手方向に間隔を置いて、左右位置にそれぞれ挿通筒体４及び駒鉤体５を設けてなり、すなわち、基体３の長手方向に間隔を置いて、二個の取付片３ａを下方突設し、各取付片３ａに脚杆体１を上下移動自在に挿通可能な対向一対の角筒状の挿通筒体４・４を取付片４ａ・４ａと取付片３ａとをボルトＢ及びナットＮにより傾斜角度調節自在に連結固定し、各挿通筒体４の側面に支持片４ｂ・４ｂを取付け、支持片４ｂ・４ｂに遊孔４ｃ・４ｃを形成し、各遊孔４ｃ・４ｃ間に支持軸４ｄを遊動自在に架設し、支持軸４ｄに角筒状の駒鉤体５を固着し、駒鉤体５を支持軸４ｄと遊孔４ｃとの嵌合部分を中心にして上下揺動自在に設け、挿通筒体４に挿通筒体４の軸線に直交する方向より下方への駒鉤体５の揺動を規制する規制凸部４ｅを形成して構成している。 In this case, the base body 3 is composed of a round pipe 3b and a horizontal rod T made of a long round pipe into which the round pipe 3b is inserted and fixed. 4 and the piece frame 5 are provided, that is, two attachment pieces 3a are provided to project downward with an interval in the longitudinal direction of the base 3, and the leg case 1 is inserted into each attachment piece 3a so as to be movable up and down. A pair of opposed opposing rectangular tubular insertion cylinders 4 and 4 are connected and fixed to the attachment pieces 4a and 4a and the attachment pieces 3a with bolts B and nuts N so that the inclination angle can be adjusted. The support pieces 4b and 4b are attached, the support pieces 4b and 4b are formed with free holes 4c and 4c, and the support shaft 4d is movably installed between the free holes 4c and 4c. The case 5 is fixed, and the piece case 5 is centered on the fitting portion between the support shaft 4d and the free hole 4c. Provided freely lower swing, it is constructed by forming a restriction projection 4e for regulating the swinging piece 鉤体 5 downward from a direction perpendicular to the axis of the insertion cylinder 4 into the insertion cylinder 4.

６は覆体であって、この場合、基体３の左右両側に板状の覆体６を立て掛ける用にしている。尚、上記脚杆体１の外面に取り付けた金属製の止め金具７の止鉤部７ａ・７ａ間に木材からなる覆体６を架設したり、網状の覆体６を用いて覆うこともできる。 Reference numeral 6 denotes a cover. In this case, the plate-shaped cover 6 is leaned on the left and right sides of the base 3. Note that a cover 6 made of wood can be installed between the stop portions 7a and 7a of the metal stopper 7 attached to the outer surface of the leg rod 1 or covered with a net-like cover 6.

この実施の第二形態例は上記構成であるから、上記第一形態例と同様な作用効果を得ることができ、かつ、上記基体３は水平杆状に形成され、基体３の長手方向に間隔を置いて、左右位置にそれぞれ複数個の挿通筒体４及び駒鉤体５を設けてなるから、三角柱状の構築体を構成することができ、並列する花木等Ｗの周囲を覆うことができる。 Since the second embodiment of the present embodiment has the above-described configuration, the same effects as those of the first embodiment can be obtained, and the base 3 is formed in a horizontal bowl shape and spaced in the longitudinal direction of the base 3. , And a plurality of insertion cylinders 4 and piece frames 5 are provided at the left and right positions, respectively, so that a triangular prism-shaped structure can be formed and the surroundings of W and the like in parallel can be covered. .

図８乃至図１０の第三形態例は別例構造を示し、この場合、脚杆体１として、丸パイプが用いられ、又、支持機構２として、上記第一形態例又は第二形態例に示すような基体３に突設された取付片３ａに脚杆体１を上下移動自在に挿通可能な丸筒状の挿通筒体４・４を取付片４ａと取付片３ａとをボルトＢ及びナットＮにより傾斜角度調節自在に連結固定し、取付片４ａの側面に支持片４ｂ・４ｂを取付け、支持片４ｂ・４ｂに遊孔４ｃ・４ｃを形成し、各遊孔４ｃ・４ｃ間に支持軸４ｄを遊動自在に架設し、支持軸４ｄに丸筒状の駒鉤体５を固着し、駒鉤体５を支持軸４ｄと遊孔４ｃとの嵌合部分を中心にして上下揺動自在に設け、挿通筒体４に挿通筒体４の軸線に直交する方向より下方への駒鉤体５の揺動を規制する規制凸部４ｅを形成して構成している。 8 to 10 show another structure. In this case, a round pipe is used as the leg frame 1, and the support mechanism 2 is shown in the first embodiment or the second embodiment. A circular cylindrical insertion cylinder 4 or 4 through which the leg frame 1 can be inserted in a vertically movable manner is attached to the attachment piece 3a projecting from the base 3, and the attachment piece 4a and the attachment piece 3a are connected by bolts B and nuts N. The connecting pieces 4a and 4b are attached to the side surfaces of the attachment pieces 4a, the free holes 4c and 4c are formed in the support pieces 4b and 4b, and the support shaft 4d is formed between the free holes 4c and 4c. It is constructed so as to be freely movable, and a round cylindrical piece frame 5 is fixed to the support shaft 4d, and the piece frame 5 is provided so as to be swingable up and down around the fitting portion between the support shaft 4d and the free hole 4c. The insertion cylindrical body 4 is formed with a restricting convex portion 4e that regulates the swing of the frame body 5 downward from the direction orthogonal to the axis of the insertion cylindrical body 4. Constitute Te.

この実施の第三形態例は上記構成であるから、上記第一形態例と同様な作用効果を得ることができると共に脚杆体１として丸パイプを用いることができる。 Since the third embodiment of the present embodiment has the above-described configuration, it is possible to obtain the same function and effect as the first embodiment and to use a round pipe as the leg frame 1.

尚、本考案は上記実施の形態例に限られるものではなく、例えば、脚杆体１、支持機構２、基体３、挿通筒体４、駒鉤体５、覆体６の形態や大きさ、材質等は適宜変更して設計され、又、覆体６は板材、網状体、その他の部材が用いられるるものである。 In addition, this invention is not restricted to the said embodiment, For example, the form, the magnitude | size, and material of the leg frame 1, the support mechanism 2, the base | substrate 3, the insertion cylinder 4, the frame 5 and the cover 6 are shown. The cover 6 is made of a plate material, a net-like body, or other members.

以上、所期の目的を充分達成することができる。 As described above, the intended purpose can be sufficiently achieved.

本考案の実施の第一形態例の部分斜視図である。It is a fragmentary perspective view of the 1st example of implementation of this invention. 本考案の実施の第一形態例の部分断面図である。1 is a partial cross-sectional view of a first embodiment of the present invention. 本考案の実施のの部分拡大断面図である。It is a partial expanded sectional view of implementation of this invention. 本考案の実施の第一形態例の使用状態図である。It is a use condition figure of the example of the 1st form of implementation of the present invention. 本考案の実施の第二形態例の使用状態図である。It is a use condition figure of the example of an embodiment of the invention. 本考案の実施の第二形態例の部分斜視図である。It is a fragmentary perspective view of the 2nd example of implementation of this invention. 本考案の実施の第二形態例の部分断面図である。It is a fragmentary sectional view of the 2nd example of implementation of this invention. 本考案の実施の第三形態例の部分斜視図である。It is a fragmentary perspective view of the 3rd example of implementation of this invention. 本考案の実施の第三形態例の部分平面図である。It is a fragmentary top view of the example of 3rd embodiment of implementation of this invention. 本考案の実施の第三形態例の部分断面図である。It is a fragmentary sectional view of the 3rd example of an embodiment of the invention.

Explanation of symbols

１脚杆体
２支持機構
３基体
４挿通筒体
５駒鉤体
６覆体
DESCRIPTION OF SYMBOLS 1 Leg frame 2 Support mechanism 3 Base body 4 Insertion cylinder 5 Frame frame 6 Cover

Claims

A plurality of leg rods serving as support columns for protecting flower trees and the like from snow, and a support mechanism capable of standing and supporting the leg rods on the ground, the support mechanism comprising the plurality of leg rods; A base body for arranging the base body, an insertion tube body provided on the base body, through which the plurality of leg rod bodies can be inserted so as to be movable up and down, and a downward movement of the leg rod body in the insertion cylinder body is allowed but moved upward Is a snow enclosure characterized by comprising a releasable piece frame for the purpose of preventing free movement.

2. The snow enclosure according to claim 1, wherein the base body is formed in a horizontal annular shape, and a plurality of insertion cylinders and frame bodies are provided at intervals around the base body.

2. The snow enclosure according to claim 1, wherein the base body is formed in a horizontal basket shape, and a plurality of insertion cylinders and a piece frame body are provided at left and right positions at intervals in the longitudinal direction of the base body. .