JP2005325679A

JP2005325679A - Column connecting structure

Info

Publication number: JP2005325679A
Application number: JP2005111953A
Authority: JP
Inventors: Hiroyuki Yoshikawa; 博之吉川; Kenzo Nakanishi; 健三中西; Takaaki Ando; 孝明安藤; Yoshikazu Kobayashi; 義和小林
Original assignee: KOKUYO DENKO KK
Current assignee: KOKUYO DENKO KK
Priority date: 2004-04-12
Filing date: 2005-04-08
Publication date: 2005-11-24
Anticipated expiration: 2025-04-08
Also published as: JP4087389B2

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the connection by adjusting the axis by simplifying a structure of a connecting part. <P>SOLUTION: A cylindrical lower column 1 and an upper column 2 are coaxially butted, and an annular abutting surface 3 arranged in an upper end part of its lower column 1 is allowed to abut on an annular abutting surface 4 arranged in a lower end part of the upper column 2. One end of a wire 10 is locked on a locking part 12 of the upper column 2, and its other end is introduced to a locking part 11 of the lower column 1, and its other end is pulled and locked on the locking part 11, and both abutting surfaces 3 and 4 are brought into pressure contact with each other, to connect both upper-lower columns 1 and 2. Since both the upper-lower columns 1 and 2 can be fixed at a relatively long distance to the column total length by its wire 10, both can be firmly and stably fixed. Since there is no need to arranging a connecting member outside the columns, a neat appearance is formed to contribute to improving an aesthetic appearance and antirust. Even in a state of horizontally bringing down the columns, pressure contact force uniformly acts around the axis on both abutting surfaces 3 and 4, and both upper-lower columns 1 and 2 can be coaxially connected. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

この発明は、街路灯や道路標識などを設置するために用いられる筒状支柱の接続構造に関するものである。 The present invention relates to a connecting structure for cylindrical struts used for installing street lights, road signs, and the like.

従来より、この種の支柱は、構成する部材を複数に分割して製作して、各構成部材を小型化するとともに、その小型化した部材を現地へ輸送して、現地で接続、組立することにより、部材の保管、輸送、及び建柱作業を容易にしている。 Conventionally, this type of strut is manufactured by dividing the constituent members into a plurality of parts, reducing the size of each constituent member, and transporting the reduced members to the site for connection and assembly at the site. This facilitates the storage, transportation, and construction work of components.

分割した支柱構造としては、例えば、下部に位置する支柱の上端部に上向きの受け部を設け、その受け部に上部に位置する支柱の下端部を載せて上下両支柱を嵌め合わせて接続し、その上下両支柱に設けたリブ等を相互にボルト止めすることにより、上下両支柱を一体化する手法が一般的である（例えば、特許文献１、特許文献２参照）。 As the divided strut structure, for example, an upward receiving portion is provided at the upper end portion of the strut located at the lower portion, and the lower end portion of the strut located at the upper portion is placed on the receiving portion and the upper and lower struts are fitted and connected, A technique of integrating the upper and lower struts by bolting the ribs and the like provided on the upper and lower struts to each other is common (see, for example, Patent Document 1 and Patent Document 2).

また、そのボルト止め部分にカバーを設けるとともに、その両支柱間を軸方向に離れた複数の位置で相互に保持するようにして、両者の軸心を一致させやすくした技術も開示されている（例えば、特許文献３参照）。
特開平７−２７９４８３号公報特開平８−２４００３５号公報特開２００１ー１５９２６０号公報 In addition, a technique is disclosed in which a cover is provided on the bolting portion and the support pillars are held at a plurality of positions spaced apart in the axial direction so that the axes of both can be easily aligned ( For example, see Patent Document 3).
JP-A-7-279483 JP-A-8-240035 JP 2001-159260 A

しかし、特許文献１、特許文献２に記載の支柱の接続構造では、接続用のボルトが外部に露出しているので、この種の支柱は美観に劣り、そのボルトとボルト穴との接触部分に水が付着すると、その部分から錆が発生しやすいという問題がある。さらに、接続用ボルトが露出していると、いたずらによるボルト弛緩を排除し得ないという危惧がある。 However, in the column connection structure described in Patent Document 1 and Patent Document 2, since the connection bolt is exposed to the outside, this type of column is inferior in aesthetics, and is not in contact with the bolt and the bolt hole. When water adheres, there is a problem that rust is likely to be generated from the portion. Furthermore, if the connecting bolt is exposed, there is a concern that the loosening of the bolt due to mischief cannot be excluded.

また、特許文献３に記載の支柱の接続構造では、上下両支柱の接続部分を覆うカバーを設けて、上記美観上の問題や、水の付着の問題を解決しているが、上下に分割された支柱をボルト止めする際には、特許文献１、特許文献２の場合と同様、両者のボルト穴を正確に位置合わせする必要がある。このため、重量物である支柱を、持ち上げながら相互に軸周りに回転等しなければならず、建柱作業が面倒である。 Moreover, in the connection structure of the support | pillar of patent document 3, the cover which covers the connection part of both upper and lower support | pillars is provided, and the said aesthetic problem and the problem of water adhesion are solved, but it is divided | segmented up and down. When bolting the supporting columns, it is necessary to accurately align both bolt holes as in Patent Document 1 and Patent Document 2. For this reason, it is necessary to rotate the pillars, which are heavy objects, around each other while lifting them up, and the construction work is troublesome.

また、この種の支柱は、その接続の際に、両支柱を嵌め合わせて地面に対して垂直に立ち上げ、その両支柱間に作用する力、荷重をその支柱の軸心周りに均等な状態とした後に、ボルトの締め付け等を行わなければならない。ボルトによる締め付け度合いが軸心周りに均等でないと、上下両支柱の軸心が一致しない状態で接続され、その結果、支柱の軸心周りに不均等な力が作用する原因となるからである。このため、下部の支柱を保持しながら、上部の支柱を吊り上げて位置調整し、その状態で支柱上部において、ボルトの締め付け等行うこととなるので、作業に大人数を要し非常に大がかりな作業となる。 In addition, this type of strut is fitted with both struts when it is connected, and it stands up perpendicular to the ground, and the force and load acting between the struts are evenly distributed around the axis of the strut. After that, bolts must be tightened. This is because if the degree of tightening by the bolts is not uniform around the shaft center, the shaft centers of the upper and lower support columns are connected in a state where they do not coincide with each other, resulting in an uneven force acting around the support shaft axis. For this reason, while holding the lower support column, the upper support column is lifted to adjust the position, and in that state, bolts are tightened at the upper part of the support column. It becomes.

さらに、上下両支柱の接続部分には、大きなモーメントが作用するので、上部に位置する支柱を、転倒しないようにしっかりと下部の支柱に接続しようとすれば、特に、接続部分のボルトやリブ等は大型のものとなるので、さらに重量が増えて見栄えも悪くなる。 In addition, since a large moment acts on the connecting part of the upper and lower struts, if you try to connect the upper strut firmly to the lower strut so as not to fall down, especially the bolts and ribs etc. of the connecting part Since it becomes large, the weight further increases and the appearance looks worse.

そこで、この発明は、締結ボルトが外部に露出せず、その接続部分の構造を簡素化するとともに、上下両支柱の軸心を合わせて容易に接続できるようにすることを課題とする。 Accordingly, an object of the present invention is to prevent the fastening bolt from being exposed to the outside, simplify the structure of the connecting portion, and easily connect the shaft centers of the upper and lower columns.

上記の課題を解決するために、この発明は、下部支柱と上部支柱とを接続する際に、両者を、支柱軸方向に沿って長い引張材を介して引張って接続したのである。このようにすれば、上下両支柱は、その引張材の両端間で支持されて、支柱全長に対して比較的長い距離でもって固定され得るので、接続部分付近に作用するモーメントを抑えて、両者をしっかりと安定的に固定できる。 In order to solve the above-described problems, the present invention is configured such that when the lower support column and the upper support column are connected, both are pulled and connected via a long tensile material along the support shaft direction. In this way, both the upper and lower struts are supported between both ends of the tensile material, and can be fixed at a relatively long distance with respect to the full length of the struts. Can be fixed firmly and stably.

具体的な構成は、筒状の下部支柱と筒状の上部支柱とを同軸心に突き合わせ、その下部支柱上端部に設けた受部と、上部支柱下端部に設けた基部とを当接させて、両支柱を接続する支柱の接続構造において、前記下部支柱と上部支柱の内周部にそれぞれ係止部を設け、その一方の係止部に前記支柱軸方向に長い引張材の一端を係止するとともに、引張材他端を他方の係止部へと導く。その引張材他端を引張ってその状態で前記他端を前記他方の係止部へ係止することにより、前記両係止部同士を圧接させることなく前記受部と前記基部とを圧接させて、前記上下両支柱を接続するようにしたのである。 Specifically, the cylindrical lower column and the cylindrical upper column are abutted on the same axis, and the receiving unit provided at the upper end of the lower column and the base provided at the lower end of the upper column are brought into contact with each other. In the strut connection structure that connects both struts, a locking portion is provided on the inner periphery of the lower strut and the upper strut, respectively, and one end of a tensile material that is long in the strut axial direction is locked to one of the locking portions. At the same time, the other end of the tensile material is guided to the other locking portion. By pulling the other end of the tensile material and locking the other end to the other locking portion in that state, the receiving portion and the base portion are pressed against each other without pressing the locking portions together. The upper and lower support columns are connected.

このようにすれば、両支柱同士の接続は、筒内に設けた係止部、及び引張材を介して行うことができるので、筒外には、接続用の部材を設ける必要がない。このため、支柱の接続部分をすっきりとした外観にして、その美観向上に寄与し得るとともに、ボルト、ボルト穴等が露出しないので錆防止にも寄与し得る。 If it does in this way, since connection of both support | pillars can be performed via the latching | locking part provided in the cylinder, and a tension | tensile_strength, it is not necessary to provide the member for a connection outside a cylinder. For this reason, the connection part of a support | pillar can be made into the clean appearance, and it can contribute to the improvement of the beauty | look, and since a bolt, a bolt hole, etc. are not exposed, it can also contribute to rust prevention.

この引張材としては、例えば、両係止部間を結ぶことができる長さを有するボルト軸など、周知のものを使用できるが、ワイヤ、あるいはロープを使用すれば支柱内部で取り回しやすいので便利である。このワイヤ、ロープは、鋼製、樹脂製等、その素材の種類は問わない。
なお、引張材を引張ることによる前記上下両支柱の引き寄せは、支柱に設けられたスイッチ取付用の開口部等を利用して、その開口部から手の届く範囲にて、その引張材を締め付けて引張るようにすればよい。その引張材は、開口部に設けた蓋にて目隠しされるので、外部からいたずら等により触れられることがない。 As this tension material, for example, a well-known material such as a bolt shaft having a length capable of connecting the both locking portions can be used. However, if a wire or a rope is used, it is convenient because it can be easily handled inside the column. is there. The wire and rope may be made of any material such as steel or resin.
In addition, the pulling of the upper and lower columns by pulling the tensile material, using the switch mounting opening provided on the column, etc., tighten the tensile material within the reach of the opening. What is necessary is just to pull. Since the tension material is hidden by a lid provided in the opening, it is not touched by a mischief or the like from the outside.

上記の構成において、前記他方の係止部は板状を成して水平方向に固定され、前記引張材の他端をその板状の係止部へ導いて上下方向に貫通させ、その引張材の他端にねじ部を形成し、そのねじ部にナットをねじ込むことにより、そのナットを前記他方の係止部に圧接して、その圧接により前記引張材の他端を引張ってその状態で前記他端を前記他方の係止部へ係止するようにした構成を採用し得る。
このようにすれば、ナットのねじ込み量を調整することにより、引張材の張力、すなわち上下両支柱の基部と受部との圧接度合いを調整でき、所定の圧接度合いに達したところで、ナットのねじ込みを止めれば、その状態で引張材を係止部に固定し得るので、上下両支柱の接続作業が簡単になる。 In the above configuration, the other locking portion is formed in a plate shape and fixed in the horizontal direction, and the other end of the tensile material is led to the plate-shaped locking portion so as to penetrate in the vertical direction. The other end of the tension member is formed with a threaded portion, and the nut is screwed into the threaded portion so that the nut is pressed against the other locking portion. A configuration in which the other end is locked to the other locking portion may be employed.
In this way, by adjusting the screwing amount of the nut, it is possible to adjust the tension of the tensile material, that is, the degree of pressure contact between the base and the receiving part of both the upper and lower struts. Since the tension member can be fixed to the locking portion in this state, the connection work between the upper and lower support columns is simplified.

また、前記ナットを使用した構成において、そのナットの前記他方の係止部への圧接は、前記ナットと前記他方の係止部との間に設けたばね座金を介して行うようにすれば、上下両支柱の横方向変位や、引張材の伸縮等によりナットの締付けが緩んだときに、その締結力が極端に低下するのを防ぐとともに、締付時のトルク管理が容易となる。 In addition, in the configuration using the nut, if the pressure contact of the nut to the other locking portion is performed via a spring washer provided between the nut and the other locking portion, When the nuts are loosened due to the lateral displacement of both struts or the expansion and contraction of the tensile material, the fastening force is prevented from being extremely reduced, and torque management at the time of fastening is facilitated.

さらに、そのばね座金を、フラットな座金ベース部の両端縁から、対向して延びる対の突出片を有する断面コ字状の皿ばねとして、前記両突出片は、前記ナットの径よりも大きい距離隔てられているものとし、その両突出片を前記他方の係止部に、前記座金ベース部の外面にナットを宛がうようにすれば、皿ばねが座屈を起した際の荷重値を引張材の許容荷重値内に設定しておけば、その皿ばねが座屈すると、ナットはそれ以上締付けできなくなる。このため、ナットの締付け量、すなわち引張材の張力を設定しやすい。 Further, the spring washer is a disk spring having a U-shaped cross section having a pair of projecting pieces extending opposite from both end edges of the flat washer base portion, and the projecting pieces have a distance larger than the diameter of the nut. If the projecting pieces are separated from each other and the nut is applied to the outer surface of the washer base portion with the projecting pieces on the other locking portion, the load value when the disc spring is buckled is obtained. If it is set within the allowable load value of the tensile material, the nut cannot be tightened any more when the disc spring is buckled. For this reason, it is easy to set the tightening amount of the nut, that is, the tension of the tensile material.

また、前記上下両支柱の前記受部及び前記基部は、それぞれ同軸心の環状に形成した上向き当接面及び下向き当接面とした構成を採用し得る。引張材による引張り力は、支柱全長に対して比較的長い距離でもって上下両支柱間に作用させることができ、その両係止部間距離を長く設定すれば、前記両支柱の環状の当接面には、その全体に引張り力が均等に分散して作用しやすくなる。このため、引張材を引張れば、前記環状の当接面に均等に力が作用するので、自ずから両支柱が同軸心に調整されてその状態で維持されるようになり、従来のような大がかりな調整作業が不要となる。さらに、その両当接面、又はそのいずれか一方を、前記環状当接面の軸心周りに拡縮径するテーパ面とすれば、一方の支柱のテーパ面に接する当接面を有する他方の支柱が、引張材の引張りとともに同軸心へと導かれ、前記軸心の調整機能がさらに高まって好ましい。 Further, it is possible to adopt a configuration in which the receiving portion and the base portion of the upper and lower struts are respectively an upward contact surface and a downward contact surface formed in a coaxial ring shape. The tensile force by the tensile material can be applied between the upper and lower struts at a relatively long distance with respect to the full length of the strut, and if the distance between the both locking portions is set long, the annular contact between the both struts The surface tends to act with the tensile force evenly distributed over the entire surface. For this reason, if the tension member is pulled, a force is applied evenly to the annular contact surface, so that both struts are adjusted to be coaxial with each other and maintained in that state. Adjustment work becomes unnecessary. Furthermore, if both of the contact surfaces or one of them is a tapered surface that expands or contracts around the axis of the annular contact surface, the other support column having the contact surface in contact with the tapered surface of one of the support columns. However, it is preferable to be led to the coaxial core along with the tension of the tensile material, and the function of adjusting the axis is further enhanced.

なお、引張材による前記引張り力は、支柱を横倒しした状態であっても、前記環状当接面の軸心周りに均等に分散して作用するので、支柱を垂直に立ち上げる前に、地盤上に横倒し状態で上下両支柱を接続してもよい。このようにすれば、支柱接続時の大がかりな立ち上げ作業が不要となるので、支柱の接続作業がさらに容易となる。 Note that the tensile force by the tensile material acts evenly distributed around the axis of the annular contact surface even in a state where the support column is laid down. The upper and lower support columns may be connected to each other while lying down. In this way, since a large-scale start-up operation at the time of connecting the support columns is not necessary, the connection operation of the support columns is further facilitated.

さらに、前記下部支柱上端縁又は上部支柱下端縁から上下方向に延びるピン収納用溝を形成し、そのピン収納用溝を設けた支柱の他方の支柱には、前記上下両支柱とを嵌め合わせた際に、そのピン収納用溝に収まるピンを設けてもよい。 Further, a pin storing groove extending in the vertical direction from the upper end edge of the lower column or the lower end edge of the upper column is formed, and the upper and lower columns are fitted to the other column of the column provided with the pin storing groove. In this case, a pin that fits in the pin housing groove may be provided.

このようにすれば、ピンがピン収納用溝内で拘束されて、上下両支柱同士の軸周りの回転を防止し得る。このため、例えば、上下両支柱の各係止部の設置位置が、支柱の軸周りに異なる方位に位置し、引張材の配置方向が支柱の軸方向に平行でない状態となった場合においても、その引張材による引張り力は、支柱の軸方向にのみ作用して軸周りには力が逃げないので、両当接面間に所定の密着性能が得られる。このため、上下両支柱を接続する際に、各係止部の位置が、支柱の軸周りに同一の方位に位置するように調整する必要がないので作業が簡単である。 If it does in this way, a pin will be restrained in the groove | channel for pin accommodation, and rotation around the axis | shaft of both upper and lower support | pillars can be prevented. For this reason, for example, when the installation positions of the engaging portions of the upper and lower columns are located in different directions around the axis of the column, even when the arrangement direction of the tensile material is not parallel to the axis direction of the column, Since the tensile force by the tensile material acts only in the axial direction of the column and the force does not escape around the axis, a predetermined adhesion performance can be obtained between both contact surfaces. For this reason, when connecting both the upper and lower columns, it is not necessary to adjust the positions of the respective locking portions so as to be positioned in the same direction around the axis of the column.

さらに、前記受部及び前記基部のうち、その一方を前記ピン収納用溝の内面で構成するようにし、他方をそのピンの外周面で構成するようにしてもよい。ピンとピン収納用溝との当接をもって、上下両支柱が軸方向、軸周りに位置決めされるようにすれば、支柱の接続部分の構造がさらに簡素化される。もちろん、前記ピン及びピン収納用溝とは別に、前記上下両支柱同士が当接する受部と基部とを両支柱にそれぞれ設け、そのピンとピン収納用溝、及び、別に設けた前記受部と基部とがそれぞれ相互に当接するようにしてもよい。 Further, one of the receiving portion and the base portion may be constituted by the inner surface of the pin housing groove, and the other may be constituted by the outer peripheral surface of the pin. If the upper and lower struts are positioned in the axial direction and around the axis with the abutment between the pins and the pin storage grooves, the structure of the connecting portion of the struts can be further simplified. Of course, apart from the pin and the pin storing groove, a receiving part and a base part where the upper and lower support pillars contact each other are provided on both supporting pillars, respectively, and the pin and the pin storing groove and the receiving part and the base part provided separately. May be in contact with each other.

この発明は、以上のようにしたので、接続用ボルトが外部に露出せず、その接続部分の構造を簡素化するとともに、上下両支柱間の軸心を合わせて容易に接続できる。 Since the present invention is configured as described above, the connecting bolt is not exposed to the outside, the structure of the connecting portion is simplified, and the shaft centers between the upper and lower columns can be easily connected together.

一実施形態を図１又は図２に示す。この実施形態の支柱の接続構造は、支柱を構成する円筒状の部材を上下に二分割して製作される組立式の鋼管支柱に関するものである。 One embodiment is shown in FIG. 1 or FIG. The strut connection structure of this embodiment relates to an assembling-type steel pipe strut manufactured by dividing a cylindrical member constituting the strut into two vertically.

その構成は、地中の基礎等に接続、あるいは地中に直接その下端部を埋設されて固定される円筒状の下部支柱１と、その上部に接続される円筒状の上部支柱２とからなり、その上部支柱２下端部の内周には円筒状の継手部５が一体に固定されている。この下部支柱１と上部支柱２とを同軸心に突き合わせ、図１に示すように、その上部支柱２の継手部５を下部支柱１の内側に押し込むことにより、その継手部５の外周面と下部支柱１の内周面とが密着する。そして、さらに押し込んで、その下部支柱１上端面に設けられた環状の上向き当接面（受部）３と、上部支柱２の前記継手部５との段部に設けられた環状の下向き当接面（基部）４とを当接させて、図２（ａ）に示すように、上下両支柱１，２を接続する。なお、図１に示す継手部５と図２に示す継手部５とは、その長さが異なるが、概念的には同じものを示したものである。 The structure consists of a cylindrical lower support column 1 connected to the foundation or the like in the ground, or directly fixed with the lower end portion buried in the ground, and a cylindrical upper support column 2 connected to the upper part thereof. A cylindrical joint portion 5 is integrally fixed to the inner periphery of the lower end portion of the upper support column 2. The lower support column 1 and the upper support column 2 are coaxially abutted, and the joint portion 5 of the upper support column 2 is pushed into the lower support column 1 as shown in FIG. The inner peripheral surface of the column 1 is in close contact. Then, the ring is further pushed in, and the annular upward contact surface (receiving portion) 3 provided on the upper end surface of the lower support column 1 and the annular downward contact provided on the step portion of the joint portion 5 of the upper support column 2. As shown in FIG. 2A, the upper and lower support columns 1 and 2 are connected to each other by contacting the surface (base) 4. In addition, although the joint part 5 shown in FIG. 1 and the joint part 5 shown in FIG. 2 differ in the length, they show the same thing conceptually.

この接続状態において、継手部５は下部支柱１の内周面に密着して、下部支柱１に対して上部支柱２を保持し、また、前記両当接面３，４は、相互に密着するように当接して、下部支柱１と上部支柱２とを軸方向に位置決めするようになっている。この下部支柱１の上向き当接面３及び上部支柱２の下向き当接面４は、それぞれ支柱の軸心に一致する同軸心の環状に形成されている。 In this connected state, the joint portion 5 is in close contact with the inner peripheral surface of the lower support column 1 to hold the upper support column 2 with respect to the lower support column 1, and the both contact surfaces 3 and 4 are in close contact with each other. The lower support column 1 and the upper support column 2 are positioned in the axial direction. The upward contact surface 3 of the lower support column 1 and the downward contact surface 4 of the upper support column 2 are each formed in an annular shape of a coaxial core that coincides with the axis of the support column.

その上部支柱２の継手部５には、その下端縁から上方に向かって延びる対のピン収納用溝１４，１４を形成し、両ピン収納用溝１４，１４は、図１に示すように、円筒状の継手部５の軸心を挟んで径方向に対向して設けられる。また、そのピン収納用溝１４，１４は、図示するように、それぞれ開口部１４ｂから底部１４ｃに至る途中で屈曲した形態となっており、その屈曲の態様は、軸心に対して対称となっている。 In the joint portion 5 of the upper support column 2, a pair of pin storing grooves 14, 14 extending upward from the lower end edge thereof is formed. As shown in FIG. It is provided to face in the radial direction across the axis of the cylindrical joint portion 5. Further, as shown in the figure, the pin storing grooves 14 and 14 are bent in the middle from the opening 14b to the bottom 14c, respectively, and the bending mode is symmetric with respect to the axis. ing.

下部支柱１には、その上端部内周に軸心を通過するピン１３を設けており、上下両支柱１，２とを嵌め合わせた際に、そのピン１３が、前記対のピン収納用溝１４，１４に収まるようになっており、そのピン１３は、継手部５が下部支柱１の内側に押し込まれるとともに、ピン収納用溝１４内を開口部１４ｂから底部１４ｃへと導かれる。ピン１３がピン収納用溝１４内を進んで前記屈曲部を通過するとともに、上下両支柱１，２は相互に軸周りに回転し、前記環状の上向き当接面３と環状の下向き当接面４との当接と同時に、図２に示すように、ピン１３の外周面が、ピン収納用溝１４の底部１４ｃ内面に当接して止まるようになっている。 The lower support column 1 is provided with a pin 13 that passes through the shaft center on the inner periphery of the upper end. When the upper and lower support columns 1 and 2 are fitted together, the pin 13 is connected to the pair of pin storing grooves 14. , 14, and the pin 13 is guided into the pin housing groove 14 from the opening portion 14 b to the bottom portion 14 c while the joint portion 5 is pushed inside the lower support column 1. The pin 13 advances through the pin housing groove 14 and passes through the bent portion, and the upper and lower support columns 1 and 2 rotate around each other, and the annular upward contact surface 3 and the annular downward contact surface. Simultaneously with the contact with the pin 4, as shown in FIG. 2, the outer peripheral surface of the pin 13 comes into contact with the inner surface of the bottom 14c of the pin housing groove 14 and stops.

そのピン１３外周面とピン収納用溝１４内面との当接は、図１に示すように、そのピン１３外周面のうち上向き部分を上向き当接面１３ａ（ピン１３の上面と、側面の一部を含む）、ピン収納用溝１４の内面のうち下向き部分を下向き当接面１４ａ（底部１４ｃの下面と、側面の一部を含む）とし、この両当接面１３ａ，１４ａが、それぞれ前記受部と基部に相当して、前記環状の両当接面３，４の当接と同時に、相互に当接するようにする。 As shown in FIG. 1, the contact between the outer peripheral surface of the pin 13 and the inner surface of the pin storing groove 14 is such that the upward portion of the outer peripheral surface of the pin 13 faces the upward contact surface 13a (the upper surface and the side surface of the pin 13). Of the inner surface of the pin housing groove 14 is a downward contact surface 14a (including the bottom surface of the bottom portion 14c and part of the side surface), and the contact surfaces 13a and 14a are respectively Corresponding to the receiving part and the base part, they are brought into contact with each other simultaneously with the contact of the annular contact surfaces 3 and 4.

このように、下部支柱１と上部支柱２とを突き合わせ、継手部５を下部支柱１に嵌め込んで、前記両当接面３，４及び両当接面１３ａ，１４ａをそれぞれ当接させて、上下両支柱１，２を接続し、その後、引張材としてワイヤ１０により両者を引張って固定する。 In this manner, the lower support column 1 and the upper support column 2 are abutted, the joint portion 5 is fitted into the lower support column 1, and the contact surfaces 3, 4 and the contact surfaces 13a, 14a are brought into contact with each other. Both the upper and lower support columns 1 and 2 are connected, and then both are pulled and fixed by the wire 10 as a tensile material.

そのワイヤ１０による固定は、図１に示すように、前記下部支柱１と上部支柱２の内周部にそれぞれ係止部１１，１２が内側に突出するように設けられており、その上部支柱２の係止部１２に、図示するようにワイヤ１０一端に設けた環状のフック１０ａを係止する。この係止は、前記継手部５の嵌め込み前に行っておくと作業がスムースである。 As shown in FIG. 1, the fixing by the wire 10 is provided on the inner peripheral portions of the lower support column 1 and the upper support column 2 so that the locking portions 11 and 12 protrude inwardly. An annular hook 10a provided at one end of the wire 10 as shown in FIG. If this locking is performed before the fitting portion 5 is fitted, the operation is smooth.

ワイヤ１０他端を下部支柱１に設けた係止部１１へと導き、そのワイヤ１０他端に設けたねじ部１０ｂを、その係止部１１に設けた溝１１ａ内で上下方向に挿通する。溝１１ａは、係止部１１の端縁に開口して設けられているので、ワイヤ１０はその開口を通じて溝１１ａ内に収めればよい。なお、溝１１ａは、係止部１１の端縁に開口しない孔状のものであってもよい。 The other end of the wire 10 is led to a locking portion 11 provided on the lower support column 1, and a screw portion 10 b provided on the other end of the wire 10 is inserted vertically in a groove 11 a provided on the locking portion 11. Since the groove 11a is provided so as to open at the edge of the locking portion 11, the wire 10 may be stored in the groove 11a through the opening. The groove 11a may be a hole that does not open at the edge of the locking portion 11.

このワイヤ１０他端のねじ部１０ｂに、ワッシャ１０ｃを介してナット１０ｄを取付け、そのナット１０ｄをそのねじ部１０ｂにねじ込むことにより、ワッシャ１０ｃとナット１０ｄが係止部１１下面に当たるようにする。さらにナット１０ｄをねじ込むことにより、ワイヤ１０を支柱の軸方向下方へと引張って、ワイヤ１０他端を係止部１１へ係止する。この引張りにより、前記上向き当接面３と下向き当接面４とが圧接し、両当接面３，４を密着させて前記上下両支柱１，２を接続する。また、前記両当接面１３ａ，１４ａも圧接するので、ピン１３がピン収納用溝１４内にぴったりと嵌って抜けないように固定される。なお、このワイヤ１０の引張り作業は、図２に示すスイッチ用開口部６から手を差し入れて行うことができる。この開口部６は、作業を行う時にのみ蓋７を開けるようにし、通常は、蓋７を閉じた状態にしておくので、支柱内部のワイヤ１０等が人目に触れることはなく、いたずら等を受ける危惧がない。 A nut 10d is attached to the threaded portion 10b at the other end of the wire 10 via a washer 10c, and the nut 10d is screwed into the threaded portion 10b so that the washer 10c and the nut 10d come into contact with the lower surface of the locking portion 11. Further, by screwing the nut 10d, the wire 10 is pulled downward in the axial direction of the column, and the other end of the wire 10 is locked to the locking portion 11. By this pulling, the upward contact surface 3 and the downward contact surface 4 are in pressure contact, and the contact surfaces 3 and 4 are brought into close contact with each other to connect the upper and lower support columns 1 and 2. Further, both the abutting surfaces 13a and 14a are also brought into pressure contact, so that the pin 13 is fixed so as to fit into the pin housing groove 14 and not come out. The pulling operation of the wire 10 can be performed by inserting a hand through the switch opening 6 shown in FIG. The opening 6 opens the lid 7 only when the work is performed, and normally the lid 7 is in a closed state, so that the wire 10 or the like inside the support column is not touched by human eyes and is subjected to mischief and the like. There is no fear.

このワイヤ１０を介した接続により、上下両支柱１，２は、そのワイヤ１０の両端間、すなわち両係止部１１，１２間が引き寄せられた状態で維持されており、このとき、その両係止部１１，１２間の距離は、図２（ａ）に示すように、支柱全長に対して比較的長い距離となるので、その長い距離でもって上下両支柱１，２をしっかりと安定的に固定できる。また、ワイヤ１０による引張り力が、支柱全長に対して比較的長い距離でもって作用するので、前記上下両支柱１，２の環状の当接面３，４には、その全体に引張り力が均等に分散して作用しやすくなる。このため、ワイヤ１０を引張れば、その環状の当接面３，４に均等に力が作用するので、自ずから上下両支柱１，２が同軸心に調整されてその状態で維持されるようになる。 Due to the connection via the wire 10, the upper and lower support columns 1 and 2 are maintained in a state where both ends of the wire 10, that is, between the locking portions 11 and 12, are attracted. As shown in FIG. 2A, the distance between the stop portions 11 and 12 is a relatively long distance with respect to the overall length of the support column. Can be fixed. Further, since the pulling force by the wire 10 acts over a relatively long distance with respect to the full length of the support column, the pulling force is evenly distributed over the entire annular contact surfaces 3 and 4 of the upper and lower support columns 1 and 2. It becomes easy to act by being dispersed. For this reason, if the wire 10 is pulled, a force is equally applied to the annular contact surfaces 3 and 4 so that the upper and lower support columns 1 and 2 are adjusted to be coaxial and maintained in this state. Become.

また、上部支柱２に横方向へ転倒しようとする力が作用すると、その上部支柱２をワイヤ１０が弾性力をもって倒れないように保持し、その力が作用しなくなると、上部支柱２はワイヤ１０の弾性力により元の位置に復元される。すなわち、接続した上下両支柱１，２間に作用する力の一部を、ワイヤ１０の弾性力に負担させることにより、その上下両支柱１，２、及びその両者を固定するための各種接続部材への力の負担を軽減することができる。このため、ワイヤ１０の弾性力を期待して支柱の各部材を構成すれば、部材を小さくでき、また、全体の構造を簡素化し得る。一般的にワイヤは、鋼縒り線によって構成されており、一般的な鋼材と比較しても弾性力が大きいので、上述のように、引張材に弾性力を期待する場合には有利であるが、他の材質の引張材の使用を排除する趣旨ではなく、弾性力の大小にかかわらず種々の素材からなる周知のワイヤ、ロープ等を使用してもよい。 Further, when a force to fall in the lateral direction acts on the upper support column 2, the upper support column 2 is held so that the wire 10 does not fall with an elastic force. It is restored to its original position by the elastic force. That is, by causing a part of the force acting between the connected upper and lower support columns 1 and 2 to be borne by the elastic force of the wire 10, the upper and lower support columns 1 and 2 and various connection members for fixing both of them. Can reduce the burden of power. For this reason, if each member of a support | pillar is comprised in anticipation of the elastic force of the wire 10, a member can be made small and the whole structure can be simplified. In general, a wire is composed of a steel wire and has a large elastic force compared to a general steel material, which is advantageous when an elastic force is expected for a tensile material as described above. The purpose is not to exclude the use of other tensile materials, and well-known wires and ropes made of various materials may be used regardless of the magnitude of the elastic force.

また、ピン１３がピン収納用溝１４内で拘束されて、上下両支柱１，２同士の軸周りの回転を防止し得るので、例えば、図２（ｂ）に示すように、上下両支柱１，２の各係止部１１，１２の設置位置が、支柱の軸周りに異なる方位に位置し、ワイヤ１０の配置方向が支柱の軸方向に平行でない状態となった場合においても、そのワイヤ１０による引張り力は、支柱の軸方向にのみ作用して軸周りには力が逃げないので、両当接面３，４間に所定の圧接性能が得られる。このため、図示するように上部支柱２を軸周りに反転した状態で接続しても、ワイヤ１０の引張りにより所定の圧接力を維持して、上下両支柱１，２は接続され得る。 Further, since the pin 13 is restrained in the pin storing groove 14 and the rotation of the upper and lower support columns 1 and 2 around the axis can be prevented, for example, as shown in FIG. , 2 are located at different orientations around the axis of the support column, and the wire 10 is disposed even when the arrangement direction of the wire 10 is not parallel to the axial direction of the support column. The pulling force due to the above acts only in the axial direction of the column and does not escape around the axis, so that a predetermined pressure contact performance is obtained between the contact surfaces 3 and 4. For this reason, even if the upper support column 2 is connected in an inverted state as shown in the drawing, the upper and lower support columns 1 and 2 can be connected while maintaining a predetermined pressure contact force by pulling the wire 10.

この実施形態では、継手部５を上部支柱２の下端部に設けたが、この実施形態には限定されず、継手部５を下部支柱１上端部の内周に固定して、その継手部５が上部支柱２の内周部に嵌るようにしてもよい。そのとき、ピン１３は上部支柱２に、ピン収納用溝１４は、下部支柱１の継手部に設ければよい。 In this embodiment, the joint portion 5 is provided at the lower end portion of the upper support column 2. However, the present invention is not limited to this embodiment, and the joint portion 5 is fixed to the inner periphery of the upper end portion of the lower support column 1. May be fitted to the inner periphery of the upper column 2. At that time, the pin 13 may be provided in the upper support column 2, and the pin storage groove 14 may be provided in the joint portion of the lower support column 1.

また、この実施形態のピン収納用溝１４は、前記支柱の軸心を挟んで径方向に対向して設け、ピン１３は、その軸心を通る径方向に配置したが、この実施形態には限定されず、そのピン収納用溝１４、１４を結ぶ方向（ピン１３の方向）は、支柱の軸心を通らないように設定してもよい。また、ピン１３の態様は、この実施形態のように、円筒状の支柱内において対向する内周面間を連結されていてもよいし、連結せずにその内周面の対向する部分にそれぞれ設けた突出ピン１３，１３の態様としてもよい。また、ピン１３とピン収納用溝１４の効果を望まない場合には、図３に示すように、ピン１３とピン収納用溝１４を省略してもよい。 Further, the pin storing groove 14 of this embodiment is provided to face in the radial direction across the axis of the support column, and the pin 13 is arranged in the radial direction passing through the axis, but in this embodiment, The direction of connecting the pin housing grooves 14 and 14 (the direction of the pin 13) may be set so as not to pass through the axis of the column. Moreover, the aspect of the pin 13 may be connected between the inner peripheral surfaces which oppose in a cylindrical support | pillar like this embodiment, and it is respectively connected to the part which the inner peripheral surface opposes without connecting. It is good also as an aspect of the provided projection pins 13 and 13. FIG. If the effect of the pin 13 and the pin storing groove 14 is not desired, the pin 13 and the pin storing groove 14 may be omitted as shown in FIG.

なお、前記引張材として、前述のワイヤ１０やロープ等に代えて、両係止部１１，１２間を結ぶボルト軸等を使用してもよい。ボルト軸は、その上下端を、それぞれボルト頭部や、ワッシャ、ナット類を介して両係止部１１，１２間に係止し得るようにすれば、ワイヤ１０やロープの場合と同様に、両係止部１１，１２同士を引き寄せるように締め付けしやすい。また、この接続に用いる引張材の本数は自由であり、支柱の軸周りに複数の係止部１１，１２を上下両支柱１，２にそれぞれ設けて、その対応する係止部１１，１２間をそれぞれ別の引張材で引張ってもよい。その引張材として、ワイヤ、ロープを使用する場合の引張り方法は自由であり、この実施形態のねじ部へのナット締め付けによる引張り方法以外にも、例えばウインチなど周知の技術を採用し得る。また、支柱の分割についても、この実施形態の二分割には限定されず、さらに細かく分割した態様も考えられる。 In addition, you may use the bolt axis | shaft etc. which connect between both the latching | locking parts 11 and 12 instead of the above-mentioned wire 10, rope, etc. as said tension | tensile_strength material. If the bolt shaft can be locked between the locking portions 11 and 12 via bolt heads, washers and nuts, respectively, the upper and lower ends of the bolt shaft, as in the case of the wire 10 and the rope, It is easy to fasten both the locking portions 11 and 12 so as to draw each other. Further, the number of tension members used for this connection is arbitrary, and a plurality of locking portions 11 and 12 are provided on the upper and lower columns 1 and 2 around the axis of the column, and between the corresponding locking portions 11 and 12. May be pulled with different tensile materials. When using a wire or a rope as the tensile material, a pulling method is free, and a well-known technique such as a winch can be adopted in addition to a pulling method by tightening a nut to a screw portion of this embodiment. Also, the division of the support is not limited to the two divisions of this embodiment, and a more finely divided aspect is also conceivable.

さらに、前記環状の両当接面３，４の双方を、それぞれその環状当接面の軸心周りに拡縮径するテーパ面とした構成も採用し得る。その両テーパ面同士が相互に面接触すれば、上下両支柱１，２の軸心合わせが容易であり、その両テーパ面同士が面接触しない構成、あるいは、両当接面３，４のうちいずれか一方のみをテーパ面とした構成においても、同様に軸心合わせを容易とし得る効果がある。また、上向き当接面３及び下向き当接面４は、それぞれ支柱の軸心に一致する同軸心の環状に形成することが望ましいが、両環状当接面３，４の軸心が一致していれば、その当接面３，４の軸心が支柱の軸心に一致していなくとも、接続する上下両支柱１，２の軸心を合わせる効果を発揮し得る。 Furthermore, it is also possible to adopt a configuration in which both the annular contact surfaces 3 and 4 are tapered surfaces that expand and contract around the axis of the annular contact surface. If both the tapered surfaces are in surface contact with each other, it is easy to align the axes of the upper and lower support columns 1 and 2, and the configuration in which the tapered surfaces are not in surface contact with each other, Even in the configuration in which only one of them is a tapered surface, there is an effect that the axis alignment can be easily performed. In addition, the upward contact surface 3 and the downward contact surface 4 are preferably formed in a coaxial annular shape that coincides with the axis of the support column, but the axial centers of both annular contact surfaces 3 and 4 are aligned. Thus, even if the axial centers of the contact surfaces 3 and 4 do not coincide with the axial centers of the columns, the effect of aligning the axes of the upper and lower columns 1 and 2 to be connected can be exhibited.

また、この実施形態で示す鋼管支柱以外の材質からなる支柱であっても、内部にワイヤ等の引張材を引き通すスペースを有する筒状の支柱であれば、同様の構成を実施し得る。 Moreover, even if it is a support | pillar consisting of materials other than the steel pipe support | pillar shown in this embodiment, if it is a cylindrical support | pillar which has a space which allows a tensile material, such as a wire, to pass through, the same structure can be implemented.

他の実施形態を図４及び図５に示す。この実施形態の支柱構造は、上記実施形態の支柱構造において、図４に示す係止部１１を採用し、ワイヤ１０の他端に、図示するばね座金１５及びワッシャ１０ｃを介してナット１０ｄをねじ込み可能としたものである。なお、上記実施形態におけるピン１３及びピン収納用溝１４は設けていないが、必要に応じて設けても良い。 Another embodiment is shown in FIGS. The column structure of this embodiment employs the locking portion 11 shown in FIG. 4 in the column structure of the above embodiment, and a nut 10d is screwed into the other end of the wire 10 via a spring washer 15 and a washer 10c shown in the figure. It is possible. In addition, although the pin 13 and the pin accommodation groove | channel 14 in the said embodiment are not provided, you may provide as needed.

係止部１１は、図４に示すように、板状を成して下部支柱１の内周部に水平方向に固定され、前記ワイヤ１０の他端をその係止部１１の中央部に設けた孔１１ｂへ導いて上下方向に貫通させる。ワイヤ１０の他端には、ねじ部１０ｂが形成されており、そのねじ部１０ｂにばね座金１５及びワッシャ１０ｃを介してナット１０ｄをねじ込むことにより、そのばね座金１５、及びナット１０ｄを前記係止部１１の下面に圧接する。この圧接により、ワイヤ１０の他端が引張られ、所定の張力が付与される。 As shown in FIG. 4, the locking portion 11 is formed in a plate shape and is fixed to the inner peripheral portion of the lower support column 1 in the horizontal direction, and the other end of the wire 10 is provided at the central portion of the locking portion 11. It is led to the hole 11b and penetrated in the vertical direction. A threaded portion 10b is formed at the other end of the wire 10. By screwing a nut 10d into the threaded portion 10b via a spring washer 15 and a washer 10c, the spring washer 15 and the nut 10d are locked. Press contact with the lower surface of the part 11. By this press contact, the other end of the wire 10 is pulled, and a predetermined tension is applied.

このとき、前記ばね座金１５は、フラットな座金ベース部１５ｄの両端縁から、対向して延びる対の突出片１５ｂ，１５ｂを有する断面コ字状の皿ばねであって、前記両突出片１５ｂ，１５ｂは、前記ナット１０ｄの径よりも大きい距離隔てられている。
その両突出片１５ｂ，１５ｂが前記他方の係止部に、前記フラットな座金ベース部１５ｄの外面にナット１０ｄを宛がわれているので、ナット１０ｄをねじ込んでいくと、ワイヤ１０が所定の張力に達した時点で、ばね座金１５のフラットな座金ベース部１５ｄが図５（ａ）に示す状態から図５（ｂ）に示す状態へと湾曲していき、最終的には、そのフラットな座金ベース部１５ｄが座屈して、それ以上、ナット１０ｄを締め付けできない状態となる。 At this time, the spring washer 15 is a disc spring having a U-shaped cross section having a pair of projecting pieces 15b, 15b extending opposite from both end edges of the flat washer base portion 15d, and the projecting pieces 15b, 15b is separated by a distance larger than the diameter of the nut 10d.
Since both the projecting pieces 15b and 15b are applied to the other engaging portion and the nut 10d is applied to the outer surface of the flat washer base portion 15d, when the nut 10d is screwed in, the wire 10 has a predetermined tension. At this point, the flat washer base portion 15d of the spring washer 15 is curved from the state shown in FIG. 5A to the state shown in FIG. 5B, and finally the flat washer The base portion 15d is buckled, and the nut 10d cannot be tightened any further.

このため、そのばね座金１５が座屈を起す際の荷重値を、ワイヤ１０の許容荷重値内において所定の張力に設定しておけば、そのばね座金１５が座屈してナット１０ｄが締付けできなくなった状態で、ワイヤ１０は所定の張力に設定されたことになる。したがって、上下両支柱１，２の接続が容易である。なお、孔１１ｂは、係止部１１の端縁に開口した溝状のものであってもよい。 For this reason, if the load value when the spring washer 15 buckles is set to a predetermined tension within the allowable load value of the wire 10, the spring washer 15 is buckled and the nut 10d cannot be tightened. In this state, the wire 10 is set to a predetermined tension. Therefore, it is easy to connect the upper and lower columns 1 and 2. The hole 11b may be a groove having an opening at the edge of the locking portion 11.

一実施形態の斜視図Perspective view of one embodiment 同実施形態の断面図で、（ａ）は係止部の方位を一致させて接続した状態、（ｂ）は上部支柱を反転させて接続した状態を示すIn the sectional view of the same embodiment, (a) shows a state where the orientation of the locking portion is matched and connected, (b) shows a state where the upper column is inverted and connected. 他の実施形態を示す斜視図The perspective view which shows other embodiment さらに他の実施形態を示す斜視図The perspective view which shows other embodiment. 図４の要部拡大図4 is an enlarged view of the main part of FIG.

符号の説明Explanation of symbols

１下部支柱
２上部支柱
３上向き当接面
４下向き当接面
５継手部
６開口部
７蓋
１０ワイヤ（引張材）
１０ｂねじ部
１０ｄナット
１１，１２係止部
１３ピン
１４ピン収納用溝
１５ばね座金
１５ｂ突出部
１５ｄ座金ベース部 DESCRIPTION OF SYMBOLS 1 Lower support | pillar 2 Upper support | pillar 3 Upward contact surface 4 Downward contact surface 5 Joint part 6 Opening part 7 Lid 10 Wire (tensile material)
10b Screw portion 10d Nut 11, 12 Locking portion 13 Pin 14 Pin housing groove 15 Spring washer 15b Protruding portion 15d Washer base portion

Claims

筒状の下部支柱１と筒状の上部支柱２とを同軸心に突き合わせ、その下部支柱１上端部に設けた受部と、上部支柱２下端部に設けた基部とを当接させて、両支柱１，２を接続する支柱の接続構造において、
前記下部支柱１と上部支柱２の内周部にそれぞれ係止部１１，１２を設け、その一方の係止部に前記支柱軸方向に沿って長い引張材１０の一端を係止するとともに、引張材１０の他端を他方の係止部へと導き、その引張材１０の他端を引張ってその状態で前記他端を前記他方の係止部へ係止することにより、前記両係止部１１，１２同士を圧接させることなく前記受部と基部とを圧接させて、前記上下両支柱１，２を接続することを特徴とする支柱の接続構造。 The cylindrical lower support column 1 and the cylindrical upper support column 2 are abutted on the same axis, and the receiving portion provided at the upper end portion of the lower support column 1 and the base provided at the lower end portion of the upper support column 2 are brought into contact with each other. In the connection structure of the columns that connect the columns 1 and 2,
Locking portions 11 and 12 are provided on the inner peripheries of the lower column 1 and the upper column 2, respectively, and one end of the long tensile material 10 is locked to one of the locking portions along the column axial direction, The other end of the material 10 is guided to the other locking portion, the other end of the tensile material 10 is pulled, and the other end is locked to the other locking portion in that state, thereby the both locking portions. 11. A strut connection structure in which the upper and lower struts 1 and 2 are connected by press-contacting the receiving portion and the base portion without press-contacting 11 and 12 together.

前記引張材１０は、ワイヤ又はロープであることを特徴とする請求項１に記載の支柱の接続構造。 The strut connection structure according to claim 1, wherein the tension member is a wire or a rope.

前記他方の係止部は板状を成して水平方向に固定され、前記引張材１０の他端をその板状の係止部へ導いて上下方向に貫通させ、その引張材１０の他端にねじ部１０ｂを形成し、そのねじ部１０ｂにナット１０ｄをねじ込むことにより、そのナット１０ｄを前記他方の係止部に圧接して、その圧接により前記引張材１０の他端を引張ってその状態で前記他端を前記他方の係止部へ係止することを特徴とする請求項１又は２に記載の支柱の接続構造。 The other locking portion has a plate shape and is fixed in the horizontal direction. The other end of the tension member 10 is led to the plate-like locking portion and penetrates in the vertical direction. The threaded portion 10b is formed, and the nut 10d is screwed into the threaded portion 10b, so that the nut 10d is pressed against the other locking portion, and the other end of the tension member 10 is pulled by the pressure contact. 3. The strut connection structure according to claim 1, wherein the other end is locked to the other locking portion.

前記ナット１０ｄの前記他方の係止部への圧接は、前記ナット１０ｄと前記他方の係止部との間に設けたばね座金１５を介して行うことを特徴とする請求項３に記載の支柱構造。 The strut structure according to claim 3, wherein the pressure contact of the nut 10d to the other locking portion is performed via a spring washer 15 provided between the nut 10d and the other locking portion. .

前記ばね座金１５は、フラットな座金ベース部１５ｄの両端縁から、対向して延びる対の突出片１５ｂ，１５ｂを有する断面コ字状の皿ばねであって、前記両突出片１５ｂ，１５ｂは、前記ナット１０ｄの径よりも大きい距離隔てられており、その両突出片１５ｂ，１５ｂを前記他方の係止部に、前記座金ベース部１５ｄの外面にナット１０ｄを宛がうことを特徴とする請求項４に記載の支柱の接続構造。 The spring washer 15 is a disc spring having a U-shaped cross section having a pair of projecting pieces 15b, 15b extending from both end edges of a flat washer base portion 15d, the projecting pieces 15b, 15b being A distance larger than the diameter of the nut 10d is separated, and both the protruding pieces 15b and 15b are placed on the other locking portion, and the nut 10d is placed on the outer surface of the washer base portion 15d. Item 5. A support connection structure according to Item 4.

前記受部と前記基部は、それぞれ、同軸心の環状に形成される上向き当接面３、及び下向き当接面４で構成されることを特徴とする請求項１乃至５のいずれかに記載の支柱の接続構造。 The said receiving part and the said base are each comprised by the upward contact surface 3 and the downward contact surface 4 which are formed in the annular | circular shape of a coaxial core, Each of Claim 1 thru | or 5 characterized by the above-mentioned. Prop connection structure.

前記環状の両当接面３，４、又はそのいずれかは、その環状当接面３，４の軸心周りに拡縮径するテーパ面であることを特徴とする請求項６に記載の支柱の接続構造。 7. The strut of claim 6, wherein each of the annular contact surfaces 3, 4, or any one thereof, is a tapered surface that expands or contracts around the axis of the annular contact surface 3, 4. Connection structure.

前記下部支柱１上端縁又は上部支柱２下端縁から上下方向に延びるピン収納用溝１４を形成し、そのピン収納用溝１４を設けた支柱の他方の支柱には、前記上下両支柱１，２とを嵌め合わせた際に、そのピン収納用溝１４に収まるピン１３を設けたことを特徴とする請求項１乃至７のいずれかに記載の支柱の接続構造。 A pin storage groove 14 extending in the vertical direction from the upper end edge of the lower support column 1 or the lower end edge of the upper support column 2 is formed, and the other support column provided with the pin storage groove 14 includes the upper and lower support columns 1, 2. The support structure according to claim 1, wherein a pin 13 is provided that fits in the pin housing groove 14 when the two are fitted together.

前記ピン１３とピン収納用溝１４とを設けた構成において、前記受部及び前記基部は、その一方が前記ピン収納用溝１４の内面で構成され、他方がそのピン１３の外周面で構成されることを特徴とする請求項８に記載の支柱の接続構造。 In the configuration in which the pin 13 and the pin storing groove 14 are provided, one of the receiving portion and the base portion is configured by the inner surface of the pin storing groove 14, and the other is configured by the outer peripheral surface of the pin 13. The strut connection structure according to claim 8.