JPS6298097A - Support stand - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、安定且つ着実な支持を要する例えば写真カメ
ラ、映画カメラ、ビデオカメラ等の光学数冊等の機器を
支持する支持スタンド又は三脚に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a support stand or tripod for supporting equipment such as optical cameras such as photo cameras, movie cameras, and video cameras that require stable and steady support. .

［従来の技術］ 公知の支持スタンドとしては、支持されるべき機器を取
付ける支持ヘッド部と、このヘッド部から下方に延びる
支持脚とを備えたものがおる。各支持脚は入れ子式の筒
部、即ち一方が伯方へと入れ子式に出入り可能な少なく
とも第１及び第２の筒部で構成されている。両筒部は適
宜の固定装置によって相互に所望位置に容易に施錠でき
る。固定装置は、支持スタンドの外部から操作可能なテ
ーパー状のクランプ部材と、クランプ部材と協働してク
ランプ部材により膨張させられて外筒部に突き当たるこ
とができる圧力素子とで構成される。BACKGROUND OF THE INVENTION Known support stands include a support head for mounting equipment to be supported, and support legs extending downward from the head. Each support leg is comprised of telescoping tubes, ie, at least first and second tubes, one of which can be telescopically moved in and out. Both barrel parts can be easily locked to each other in a desired position by means of a suitable locking device. The fixing device is composed of a tapered clamp member that can be operated from the outside of the support stand, and a pressure element that cooperates with the clamp member and can be expanded by the clamp member and abutted against the outer cylinder.

［発明が解決しようとする問題点１ 上記した従来技術では、固定装置が施錠状態でない場合
、筒部はそれらに加わる重力の作用で下方へとすとんと
落ち易い。従って、カメラ等の機器を支持スタンドで所
望高さにセットし保持しようとする場合、まず固定装置
を非施錠状態にして入れ子式筒部を相互移動可能にして
から固定装置を働かせて両筒部を相互に施錠することに
より、各支持脚を適切な長さに固定する。しかしながら
、支持脚が長さを適宜変えられるフリーの状態になって
いる間にカメラ等の機器を所望高さに保っておくことが
難しい場合も多く、その場合、機器を正確に所望位置に
セットするのが非常に難しくなる。[Problem to be Solved by the Invention 1] In the above-mentioned prior art, when the fixing device is not locked, the cylindrical portions tend to fall downward due to the effect of gravity applied to them. Therefore, when attempting to set and hold a camera or other device at a desired height on a support stand, first unlock the fixing device to allow the telescoping tube sections to move relative to each other, and then activate the fixing device to hold both tubes. Each support leg is fixed at the appropriate length by locking them together. However, it is often difficult to keep equipment such as cameras at the desired height while the support legs are free to change the length as needed. becomes very difficult to do.

又、入れ子式筒部が最大に伸長してセットされる時には
筒部を軸方向にガイドする部分が非常に短くなってしま
うという設計上の欠点がある。従って、各支持脚の入れ
子弐両筒部が特に最大伸長位置にある場合には、固定装
置によって相互に施錠されていても比較的容易に相互に
折れ曲って破損しやすい。このような支持脚破損の危険
性は別にしても、入れ子弐両筒部を相互にガイドするガ
イド部が短いために両筒部が相互に折れ曲がりやすいと
いうことはスタンドの安定性が不十分となりやすいとい
うことである。Furthermore, there is a design drawback in that when the telescoping tube section is fully extended and set, the portion that guides the tube section in the axial direction becomes very short. Therefore, especially when the two telescopic tube portions of each support leg are at the maximum extension position, they are relatively easy to bend and break relative to each other even if they are mutually locked by the fixing device. Apart from this risk of damage to the support legs, the short guide section that guides the two tube sections of the nesting tube toward each other makes it easy for the two tube sections to bend toward each other, which makes the stand insufficiently stable. It means it's easy.

本発明は斯かる従来技術の不具合を解消し得る支持スタ
ンド又は三脚を提供することを目的とする。It is an object of the present invention to provide a support stand or tripod that can overcome the problems of the prior art.

本発明の別の目的は、固定装置が非施錠位置にあっても
重力の作用等で不用意に支持脚の筒部が相対移動しない
、支持スタンド又は三脚を提供することである。Another object of the present invention is to provide a support stand or tripod in which the cylindrical portions of the support legs do not move relative to each other due to gravity or the like even when the fixing device is in the unlocked position.

本発明の更に別の目的は、各支持脚が最大長に伸長して
も良好な安定性の得られる、支持スタンド又は三脚を提
供することでおる。Yet another object of the invention is to provide a support stand or tripod that provides good stability even when each support leg is extended to its maximum length.

本発明の更に又別の目的は、支持脚を最大長に伸長して
も支持脚を構成する両筒部が相互に充分にガイドされ得
る、支持スタンド又は三脚を提供することである。Yet another object of the present invention is to provide a support stand or tripod in which both cylindrical parts constituting the support leg can be sufficiently guided relative to each other even when the support leg is extended to its maximum length.

［問題点を解決するための手段］ 本発明の支持スタンドは、機器を取付ける支持ヘッド部
と、このヘッド部に接続されてヘッド部から下方に延び
る支持脚とで構成される。[Means for Solving the Problems] The support stand of the present invention includes a support head portion to which equipment is attached, and support legs connected to the head portion and extending downward from the head portion.

各支持脚は一方が他方に出入可能な入れ子式の第１及び
第２の筒部から成り、これら筒部は固定装置で相互に固
定することができる。固定装置は筒部内に配しその軸方
向に移動可能なロッド等の作動素子を有する。ロッドの
下端には、各々同一方向にテーパーし各々圧力素子で囲
撓された２つのクランプ部材が担持される。各圧力素子
は内筒部の下端に配した保持部材により軸方向に動かな
いように取付けられる。各クランプ部材は外筒部の内壁
面に当接する。作動ロッドと前記圧力素子の保持部材と
の間に弾性ばね素子を配し、固定装置の通常作動状態（
即ち、支持脚の両筒部が相互移動できない施錠状態でも
、非常に容易に相互移動可能な解放状態でもない状態）
ではクランプ部材が圧力素子を、手で打ち勝てる即ち外
せる程度の両筒部間の摩擦的接続を与えるよう、外筒部
の内壁面に押圧する。Each support leg consists of first and second telescoping tubes, one of which can be moved in and out of the other, and which can be secured to each other by a locking device. The fixing device has an actuating element, such as a rod, which is disposed within the barrel and is movable in the axial direction thereof. The lower end of the rod carries two clamping members each tapered in the same direction and each surrounded by a pressure element. Each pressure element is fixedly fixed in the axial direction by a retaining member disposed at the lower end of the inner cylinder. Each clamp member abuts against the inner wall surface of the outer cylinder. An elastic spring element is arranged between the actuating rod and the retaining member of the pressure element, so that the fixing device is in the normal operating state (
In other words, neither the locked state in which the two cylindrical portions of the support leg cannot move relative to each other nor the released state in which they can move relative to each other very easily)
The clamping member then presses the pressure element against the inner wall surface of the outer barrel so as to provide a frictional connection between the barrels that can be overcome or removed by hand.

以下で）ホベる好適実施例の記述から明らかとなるよう
に、固定装置を施錠位置と解放位置との間で作動させる
べく作動ロッドに接続された作動部材を機器を取付ける
ヘッド部の付近に配することができるので、支持スタン
ドが如何なる位置にあっても、即ち支持脚の長さにかか
わらず固定装置は常にヘッド部付近に配され、従って固
定装置はヘッド部付近で手により作動させることができ
る。このことは、従来技術とは正反対である。即ち、従
来技術では、固定装置の作動部材が各支持脚の入れ子弐
両筒部間の境目にあるため、固定装置の作動部材を操作
する際には、特に支持スタンドが低位置にセットされて
いる場合には、腰を屈める必要がおる。又、本発明によ
れば、入れ子式筒部のうち内筒部の下端に２つの保持部
材により軸方向に動かないよう取付けられた２つのクラ
ンプ部材とそれらに協働する２つの圧力素子とが備えら
れているので、入れ子弐両筒部が最大長に施錠されてい
る場合でも前記２つの圧力素子間で与えられる充分な長
さにわたって支持・ガイドがなされ、従って、各支持脚
の位置にかかわりなく、即ち各支持脚の長さ設定の如何
にかかわりなく両筒部間の折れ曲がりの危険を除去でき
るという利点がある。従って、本発明の支持スタンドは
常に優れた安定性が得られる。As will become clear from the description of the preferred embodiment described below), an actuating member connected to an actuating rod for actuating the locking device between a locked position and an released position is arranged in the vicinity of the head on which the device is mounted. Therefore, whatever the position of the support stand, i.e. regardless of the length of the support legs, the fixing device is always located near the head and can therefore be actuated manually near the head. can. This is contrary to the prior art. That is, in the prior art, since the actuating member of the fixing device is located at the boundary between the two nested cylinder parts of each support leg, when operating the actuating member of the fixing device, the supporting stand is particularly set at a low position. If you are sitting in a chair, you may need to bend down. Further, according to the present invention, two clamp members are attached to the lower end of the inner cylinder part of the telescoping cylinder part by two holding members so as not to move in the axial direction, and two pressure elements cooperate with them. so that even when the two telescopic tubes are locked to their maximum length, there is support and guidance over a sufficient length provided between the two pressure elements, so that the position of each support leg is In other words, there is an advantage that the risk of bending between the two cylindrical parts can be eliminated regardless of the length setting of each support leg. Therefore, the support stand of the present invention always provides excellent stability.

固定装置の通常作動状ｇ（即ち、入れ子弐両筒部が相互
に軸方向に移動できない施錠状態でも、重力作用等によ
り自由且つ容易に相互移動できる非施錠状態でもない状
態）において、クランプ部材に協働する圧力素子が入れ
子弐両筒部のうち外筒部の内壁面に、両筒部間に手で打
ち勝てる程の摩擦的施錠が生じるような力で押圧される
ので、入れ子弐両筒部が非常に正確に相互に調節且つセ
ットされ、各支持脚を所望長さにセットできるという利
点がある。In the normal operating state g of the fixing device (i.e., neither the locked state in which the two nested cylinder parts cannot move relative to each other in the axial direction nor the unlocked state in which they can freely and easily move relative to each other due to the action of gravity, etc.), the clamp member The cooperating pressure elements are pressed against the inner wall surface of the outer cylindrical part of the two nested cylindrical parts with a force that creates a frictional lock between the two cylindrical parts that can be overcome by hand. have the advantage that they can be adjusted and set relative to each other very precisely and that each support leg can be set to the desired length.

本発明の好適な特徴によれば、２つのクランプ部材は、
内筒部の最下端に固定した第１の保持部材が各クランプ
部材のまわりに配した２つの圧力素子相互間に囲繞され
るよう、作動ロッド上に相互に離間して固定される。又
、ばね素子は第１の保持部材の内部に機械的にプリスト
レスされた状態で配した好ましくは圧縮ばねで構成し、
第１の保持部材はその目的のため全般に筋状で、圧縮ば
ねを第１の保持部材と作動ロッド自体との間に配する。According to a preferred feature of the invention, the two clamping members are
A first holding member fixed to the lowermost end of the inner barrel is fixed spaced apart from each other on the actuating rod so as to be surrounded between two pressure elements disposed around each clamping member. The spring element preferably comprises a compression spring arranged in a mechanically prestressed state inside the first holding member;
The first retaining member is generally thread-like for that purpose and a compression spring is arranged between the first retaining member and the actuating rod itself.

このように第１の保持部材を囲むよう側圧力素子を構成
するので、固定装置の操作性ひいては本発明の支持スタ
ンドの操作性を損うことなく固定装置を非常にコンパク
トにできる。クランプ部材と圧力素子と保持部材とを上
記の如く構成したので、圧縮ばねをばね素子として用い
ることができる。圧縮ばねを用いることができることに
は、引張ばねの場合とは異なり例え壊れても依然として
作動可能で必るという利点が必る。ばね素子には、支持
脚の入れ子式筒部に優れた摺動性を与えるという利点も
ある。Since the side pressure element is configured to surround the first holding member in this way, the fixing device can be made very compact without impairing the operability of the fixing device, and thus the operability of the support stand of the present invention. Since the clamp member, pressure element, and holding member are constructed as described above, a compression spring can be used as the spring element. The ability to use compression springs has the advantage that, unlike the case of tension springs, they must still be operational even if they break. The spring element also has the advantage of providing good sliding properties to the telescoping tube portion of the support leg.

第１及び第２の保持部材に弾性戻り止め部を設け、内筒
部に窓部を設け、支持脚組立時に保持部材の戻り止め部
を内筒部の窓部に係合させる。このような構成の保持部
材は非常に容易に製造でき、又、支持スタンド内の定位
置に容易に嵌合できる。この種の保持部材の別の利点は
、内筒部の下端域に非常に確実に固定でき、従って支持
スタンドを長期間使用しても支持脚固定装置各部の損傷
が起き難いという点でおる。The first and second holding members are provided with elastic detents, and the inner barrel is provided with a window, so that the detents of the retainer are engaged with the windows of the inner barrel when the support leg is assembled. A retaining member of this construction is very easy to manufacture and can be easily fitted into position within the support stand. Another advantage of this type of holding element is that it can be fixed very securely in the lower end area of the inner cylinder, so that even if the support stand is used for a long period of time, the parts of the support leg fixation device are unlikely to be damaged.

本発明の更に別の特徴によれば、作動ロッドの一部に雄
ねじを刻設し、内筒部に対し回転不能に内筒部内に配し
たねじ山付スリーブにこの作動ロッドをねじ込む。この
ような構成とすることにより、ばね素子の機械的プリス
トレスが容易に調節でき、従って、軸方向に固定な圧力
素子に対しクランプ部材を軸方向に移動するのに要する
力を増減でき、その結果、上記したような支持スタンド
の通常作動状態、即ち固定装置が施錠状態でも筒部の容
易な相対移動を許す解放状態でもない状態で、圧力素子
が外筒部内壁面を押圧する力を増減できる。この押圧力
により摩擦的施錠力、即ち内筒部に間接的に接続された
圧力素子と外筒部との間の摩擦力が決められ、従って弾
性ばね素子のプリストレスを調節することにより内外筒
部間の摩擦的施錠を非常に高度の正確さで調節すること
ができる。摩擦的施錠力は両筒部が重力の作用によりひ
とりでに相対移動しないような且つ両筒部を手により相
対移動させることができる大きざの力とする。According to a further feature of the invention, a part of the actuating rod is provided with an external thread, and the actuating rod is screwed into a threaded sleeve disposed within the inner cylinder so as to be non-rotatable with respect to the inner cylinder. With such an arrangement, the mechanical prestress of the spring element can be easily adjusted, thus increasing or decreasing the force required to move the clamping member axially relative to the axially fixed pressure element. As a result, the force with which the pressure element presses against the inner wall surface of the outer cylinder part can be increased or decreased in the normal operating state of the support stand as described above, that is, in a state in which the fixing device is neither in a locked state nor in a released state that allows easy relative movement of the cylinder part. . This pressing force determines the frictional locking force, that is, the frictional force between the pressure element indirectly connected to the inner cylinder part and the outer cylinder part, and therefore, by adjusting the prestress of the elastic spring element, the Frictional locking between parts can be adjusted with a very high degree of precision. The frictional locking force is such a force that the two cylinder parts do not move relative to each other by themselves due to the action of gravity, and the force is large enough to allow the two cylinder parts to be moved relative to each other by hand.

本発明の別の好適特徴によれば、第２の圧力素子を、外
法が内筒部の内法に合い第２の保持部材により内筒部に
対し軸方向に移動しないようにした管状部で欄成し、こ
の管状部に隣接して第２のクランプ部材と協働し内筒部
の窓部を介して延出して外筒部の内壁面に当接する弾性
ガイド部を配する。このように、内筒部の内法に略合っ
た外法の管状部で構成した第２の圧力素子なので容易に
嵌め込むことができ、第２の圧力素子は第２の保持部材
により内筒部内を軸方向に略動かないよう固定される。According to another preferred feature of the invention, the second pressure element is arranged in a tubular part whose outer diameter matches the inner diameter of the inner barrel part and is prevented from moving axially relative to the inner barrel part by the second retaining member. An elastic guide portion is disposed adjacent to the tubular portion, cooperating with the second clamp member, extending through the window portion of the inner tubular portion, and abutting against the inner wall surface of the outer tubular portion. In this way, since the second pressure element is constructed of a tubular part with an outer diameter that approximately matches the inner diameter of the inner cylinder part, it can be easily fitted. It is fixed so that it does not move substantially in the axial direction within the section.

第２の圧力素子の管状部に第２のクランプ部材と協働す
る弾性ガイド素子が一体に形成され、ガイド素子の貫通
する円筒部窓部により第２の圧力素子の軸方向移動は許
容限度内に維持される。An elastic guide element that cooperates with the second clamping member is integrally formed in the tubular part of the second pressure element, and the axial movement of the second pressure element is within permissible limits due to the window in the cylindrical part that the guide element passes through. will be maintained.

［実　施　例］ 以下、図面を参照して本発明の詳細な説明する。[Example] Hereinafter, the present invention will be described in detail with reference to the drawings.

第２図に概略的に示されているように、写真カメラ、映
画カメラ、ビデオカメラ等の機器又は望遠鏡等の光学殿
器等のための支持スタンド１０は、典雅取付用の支持ヘ
ッド部１２と、ヘッド部１２から下方に延びる図示の如
き３本の支持脚１４とで構成される。各脚１４は第１及
び第２の筒部１６．１８で構成され、これら筒部１６．
１８は入れ千秋に接続されており、一方の筒部（以下内
筒部１６と称す）が他方の筒部（以下外筒部１８と称す
）内に出入できる。各脚１４の筒部１６，１８は相互に
施錠することにより支持スタンド１０を所要高さに固定
できる。図示した如き本発明の支持スタンド１０におい
ては、各脚１４の内筒部１６上端がヘッド部１２に接続
され、他方、外筒部１８は内筒部１６下端付近で内筒部
１６に摺動可能に担持される。即ち、外筒部１８が脚下
部を、内筒部１６が脚上部を形成しているのであって、
従って外筒部が脚上部をなし内筒部が脚下部をなす従来
の支持スタンドとは正反対の構成で必る。As schematically shown in FIG. 2, a support stand 10 for equipment such as a photographic camera, a movie camera, a video camera or an optical device such as a telescope has a support head 12 for elegant mounting. , and three support legs 14 as shown extending downward from the head portion 12. Each leg 14 is comprised of a first and a second cylindrical portion 16.18.
Reference numeral 18 is connected to the insert, so that one cylindrical portion (hereinafter referred to as the inner cylindrical portion 16) can go in and out of the other cylindrical portion (hereinafter referred to as the outer cylindrical portion 18). The support stand 10 can be fixed at a desired height by locking the cylindrical portions 16 and 18 of each leg 14 with each other. In the support stand 10 of the present invention as illustrated, the upper end of the inner cylinder part 16 of each leg 14 is connected to the head part 12, while the outer cylinder part 18 slides onto the inner cylinder part 16 near the lower end of the inner cylinder part 16. Possibly supported. That is, the outer cylinder part 18 forms the lower part of the leg, and the inner cylinder part 16 forms the upper part of the leg.
Therefore, the configuration is exactly opposite to that of the conventional support stand in which the outer cylinder part forms the upper part of the leg and the inner cylinder part forms the lower part of the leg.

次に第１図に関し説明を続けるが、第１図は第２図の“
Ｉ　ＩＦ部の詳細を示す拡大縦断面図でおり、外筒部１
８の一部と共に脚１４上部を構成する内筒部１６の下端
を示すもので必る。筒部１６゜１８は固定装置により相
互に施錠されて脚長さを固定することができる。図示の
如く、固定装置は作動素子としての作動ロッド２０を含
み、この作動ロッド２０は内筒部１６内を延び且つ内筒
部１６内を軸方向に移動可能でおる。支持脚１４内の作
動ロッド２０端部領域には２つのテーパー状の第１及び
第２のクランプ部材２２．２４が担持される。Next, I will continue to explain about Figure 1.
I is an enlarged vertical cross-sectional view showing details of the IF section, and shows the outer cylinder section 1.
It necessarily shows the lower end of the inner cylindrical part 16 which together with a part of the leg 14 constitutes the upper part of the leg 14. The cylindrical parts 16 and 18 can be mutually locked by a fixing device to fix the leg length. As shown, the fixing device includes an actuating rod 20 as an actuating element, which extends within the inner barrel 16 and is axially movable within the inner barrel 16 . Two tapered first and second clamping members 22,24 are carried in the end region of the actuating rod 20 in the support leg 14.

部材２２．２４は第１図から明らかなようにいずれも同
一方向にテーパーしていて図の上方に向って小径となっ
ている。As can be seen in FIG. 1, the members 22, 24 are both tapered in the same direction and become smaller in diameter toward the top of the figure.

クランプ部材２２．２４のまわりには各々圧力素子２６
．２８が配している。各圧力素子２６．２８は各々保持
部材３０．３２によって少なくとも略軸方向に動かない
よう内筒部１６下端領域に固定取付けされる。各圧力素
子２６．２８は外筒部１８の内壁面３４側に面し、内壁
面３４に当接、押圧する。弾性ばね素子３６は作動ロッ
ド２０と圧力素子２６の保持部材３０との間に作動的に
配している。即ち、例えば図示の如き圧縮］イルばねで
必るばね素子３６の一端が保持素子３０に当接し他端が
作動ロッド２０に固定した受け部に当接することによっ
て作動ロッド２０を第２図の上方に押上げている。Around the clamping members 22, 24 are each a pressure element 26.
．． 28 are arranged. Each pressure element 26,28 is fixedly mounted in the lower end region of the inner barrel 16 so as to be at least substantially axially immovable by means of a respective retaining member 30,32. Each pressure element 26, 28 faces the inner wall surface 34 side of the outer cylinder portion 18, and contacts and presses the inner wall surface 34. A resilient spring element 36 is operatively arranged between the actuating rod 20 and the retaining member 30 of the pressure element 26 . That is, one end of the spring element 36, which may be a compression spring as shown, abuts against the holding element 30 and the other end abuts against a receiving portion fixed to the actuating rod 20, thereby moving the actuating rod 20 upward in FIG. It is pushing up.

作動ロッド２０がばね素子３６によって上方に押圧され
且つクランプ部材２２．２４がテーパー状で必るため、
固定装置が以下で定義する通常作動状態におる場合、圧
力素子２６．２８はクランプ部材２２．２４と協働して
外筒部１８の内壁面３４に押圧される。その押圧力によ
って生じる両筒部１６．１８間の摩擦的施錠は手で力を
加えることにより外すことができる程度のものである。Since the actuating rod 20 is forced upwardly by the spring element 36 and the clamping members 22,24 are tapered,
When the fixation device is in the normal operating state defined below, the pressure element 26.28 is pressed against the inner wall surface 34 of the outer barrel 18 in cooperation with the clamping member 22.24. The frictional locking between the two cylindrical parts 16 and 18 caused by the pressing force is such that it can be released by applying force by hand.

第１図から明らかなように、圧力素子２６．２８はクラ
ンプ部材２２．２４を収容するテーパー状の中ぐり孔を
有しているので、クランプ部材２２．２３が第２図の上
方に移動すると圧力素子２６．２８が膨張する。As can be seen from FIG. 1, the pressure element 26.28 has a tapered bore hole which accommodates the clamping member 22.24, so that when the clamping member 22.23 is moved upwardly in FIG. Pressure elements 26,28 expand.

上記した固定装置の通常作動状態とは、両筒部が相互に
固定した施錠状態とも、両筒部が例えば重力の作用によ
り非常に容易に相互移動可能な非施錠状態とも異なる状
態でおる。The normal operating state of the fixing device described above is different from a locked state in which the two cylindrical parts are fixed to each other, and an unlocked state in which the two cylindrical parts are very easily movable relative to each other, for example due to the action of gravity.

上記した固定装置の通常作動状態では両筒部１６．１８
か摩擦施錠されているので、例えば重力の作用によって
偶然に又はうっかり両筒部１６゜１８が軸方向に相互移
動するということが防がれる。In the normal operating state of the fixing device described above, both cylindrical parts 16.18
The friction locking prevents accidental or inadvertent axial displacement of the two cylindrical parts 16, 18 relative to each other, for example due to the action of gravity.

作動ロッド２０に固着された２つのクランプ部材２２．
２４相互の配置間隔は、第１図に示すように、内筒部１
６下端領域の前端４６に４８にて固定された第１の保持
部材３０がクランプ部材２２．２４のまわりに配した圧
力素子２６．２８相互間で囲まれるような間隔とするこ
とができる。前記したように、ばね素子３６は圧縮ばね
であるのが好ましく、筋状の保持部材３０内で保持部材
３０と作動ロッド２０との間に配される。固定装置の通
常作動状態では、ばね素子３６は機械的なプレストレス
を受ける。ばね素子３６に加わる機械的なプレストレス
によりクランプ部材２２．２４は小径の方向に抑圧され
、その結果、クランプ部材２２．２４が圧力素子２６．
２８にそれぞれ更に深く喰い込み、くさび効果により圧
力素子２２．２４は限定的に半径方向外方に動く。従っ
て、圧力素子２６．２８の膨張を起こすくさび効果によ
り圧力素子２６．２８と外筒部１８の内壁面３４との間
に摩擦的７１（！ｉ錠が生じる。Two clamp members 22 fixed to the actuation rod 20.
24, the mutual arrangement interval is as shown in FIG.
The spacing may be such that the first retaining member 30, fixed at 48 to the front end 46 of the lower end region 6, is surrounded by pressure elements 26,28 arranged around the clamping member 22,24. As mentioned above, the spring element 36 is preferably a compression spring and is disposed within the striated retaining member 30 between the retaining member 30 and the actuating rod 20. In the normal operating state of the fastening device, the spring element 36 is mechanically prestressed. The mechanical prestress exerted on the spring element 36 causes the clamping member 22.24 to be compressed in the direction of the smaller diameter, with the result that the clamping member 22.24 is compressed by the pressure element 26.24.
28, the wedge effect causes the pressure elements 22, 24 to move radially outward in a limited manner. Therefore, a friction force 71 (!i) is created between the pressure element 26.28 and the inner wall surface 34 of the outer barrel 18 due to the wedge effect causing the expansion of the pressure element 26.28.

更に、第１図に関し、第１の保持部材３０と第２の保持
部材３２は弾性保持又は戻り止め部３８゜４０を有する
。内筒部１６の下端領域には複数組の窓部４２．４４が
設けられ、これら窓部４２，４４に保持部材３０．３２
の戻り止め部材３８．４０が係合して保持部材３０．３
２を内筒部１６に保持する。Further, with reference to FIG. 1, the first retaining member 30 and the second retaining member 32 have resilient retaining or detent portions 38 and 40. A plurality of sets of windows 42, 44 are provided in the lower end region of the inner cylindrical part 16, and the holding members 30, 32 are attached to these windows 42, 44.
detent member 38.40 engages retaining member 30.3.
2 is held in the inner cylinder part 16.

第１図では見えない作動ロッド２０部分に雄ねじを刻設
しであるので、作動ロッド２０を、内筒部１６内に回転
不能に配設されたねじ山付スリーブにねじ込むことによ
りばね素子３６に所要のプリストレスを与えることがで
きる。作動ロッド２０をねじ山付スリーブ内で回転させ
ると、クランプ部材２２．２４が軸方向に移動して、ク
ランプ部材２２．２４のまわりに配した圧力素子２８．
２８が外筒部１８の内壁面３４を押す力が増減され、そ
の結果、固定装置による両筒部１６．１８間の摩擦的施
錠の力が増減される。こうすることにより、固定装置が
前記した通常作動状態にある場合に、内筒部１６と外筒
部１８を手で相互移動させるのに必要な力の大きさを変
えることができる。Since a male thread is carved into the part of the actuating rod 20 that is not visible in FIG. It is possible to give the required prestress. Rotation of the actuation rod 20 within the threaded sleeve causes the clamping member 22.24 to move axially, causing pressure elements 28.
The force with which 28 presses against the inner wall surface 34 of the outer cylinder part 18 is increased or decreased, and as a result, the force of the frictional locking between the two cylinder parts 16, 18 by the locking device is increased or decreased. This allows varying the amount of force required to manually move the inner barrel 16 and outer barrel 18 relative to each other when the fixation device is in the normal operating condition described above.

更に第１図に示されているように、第２の圧力素子２０
は、内筒部１６の内法に少なくとも略合っだ外法を有し
第２の保持部材３２により内筒部１６内に略軸方向に動
かないよう取付けられた管状部５０から成る。管状部５
０に隣接して配しているのが弾性ガイド素子５２で、ガ
イド素子５２は第２のクランプ部材２４と協働し、内筒
部１６の窓部４４から延出して外筒部１８の内壁面３４
に接する。Further as shown in FIG. 1, a second pressure element 20
comprises a tubular portion 50 having an outer diameter that at least approximately matches the inner diameter of the inner barrel portion 16 and is mounted substantially axially immovably within the inner barrel portion 16 by a second retaining member 32. Tubular part 5
0 is an elastic guide element 52 which cooperates with the second clamp member 24 and extends from the window 44 of the inner cylinder part 16 and extends inside the outer cylinder part 18. Wall surface 34
be in contact with

上記した構成により、固定装置は通常作動時では各脚１
４の内外筒部１６．１８の自由な相対的周動を防ぐこと
ができ、従って例えば使用者が支持スタンドを地面から
離したときに外筒部が重力により下方に引かれる等の、
各脚の長さが不用意に伸びるという不具合が防止できる
。更に、図示の如き作動ロッド２０の構成では、作動ロ
ッド２０を動かすための作動部材を支持ヘッド部１２付
近に配することができるため、支持ヘッド部１２付近で
作動部材を手で操作することにより各脚１４を所要長さ
に固定できるという利点があり、従って、作動部材が内
外筒部１６．１８の境目に配されている場合と異なり使
用者が屈む必要がない。With the configuration described above, the fixation device is configured such that during normal operation, each leg is
Free relative rotation of the inner and outer cylinder parts 16, 18 of 4 can be prevented, so that, for example, when the user lifts the support stand off the ground, the outer cylinder part is pulled downward by gravity, etc.
This can prevent the problem of the length of each leg being unintentionally extended. Furthermore, in the configuration of the actuating rod 20 as shown in the drawings, the actuating member for moving the actuating rod 20 can be disposed near the support head portion 12, so that by manually operating the actuating member near the support head portion 12, There is the advantage that each leg 14 can be fixed to the required length, so that the user does not have to bend down, unlike when the actuating member is arranged at the boundary between the inner and outer barrel parts 16,18.

本発明は上記実施例に限定されるものではなく、本発明
の要旨の範囲内で種々変更を加え得ること等は勿論であ
る。It goes without saying that the present invention is not limited to the above embodiments, and that various changes can be made within the scope of the invention.

［発明の効果］ 以上から明らかなように、本発明の支持スタンドによれ
ば、機器を正確且つ容易に所望位置にセットできる、固
定装置が施錠状態にない場合でも各支持脚を構成する両
筒部が重力の作用等で不用意に相対移動することがない
、各支持脚を最大長に伸長した場合でも脚を構成する両
筒部が充分に相互ガイドされるので支持スタンドの安定
性が高い、等の優れた効果を発揮する。[Effects of the Invention] As is clear from the above, according to the support stand of the present invention, it is possible to accurately and easily set the equipment at a desired position, even when the fixing device is not in the locked state. Even when each support leg is extended to its maximum length, both cylindrical parts that make up the legs are fully guided by each other, so the support stand is highly stable. , and other excellent effects.

【図面の簡単な説明】[Brief explanation of drawings]

第１図及び第２図は本発明の支持スタンドの実施例を示
すもので、第１図は第２図のＩ　ＩＦ部拡大断面図、第
２図は全体側面図で必る。 図中、１０は支持スタンド、１２は支持ヘッド部、１４
は支持脚、１６は第１の筒部即ち内筒部、１８は第２の
筒部即ち外筒部、２０は作動ロッド、２２は第１のクラ
ンプ部材、２４は第２のクランプ部材、２６．２８は圧
力素子、３０は第１の保持部材、３２は第２の保持部材
、３４は内壁面、３６は弾性ばね素子、３８．４０は弾
性戻り止め部材、４２．４４は窓部、５０は管状部、５
２は弾性ガイド素子を示す。1 and 2 show an embodiment of the support stand of the present invention, with FIG. 1 being an enlarged sectional view of the IIF portion of FIG. 2, and FIG. 2 being an overall side view. In the figure, 10 is a support stand, 12 is a support head, and 14
16 is a support leg, 16 is a first cylindrical portion or an inner cylindrical portion, 18 is a second cylindrical portion or an outer cylindrical portion, 20 is an actuation rod, 22 is a first clamp member, 24 is a second clamp member, 26 .28 is a pressure element, 30 is a first holding member, 32 is a second holding member, 34 is an inner wall surface, 36 is an elastic spring element, 38.40 is an elastic detent member, 42.44 is a window portion, 50 is the tubular part, 5
2 indicates an elastic guide element.

Claims (1)

【特許請求の範囲】 １）相互に入れ子式に移動可能な第１及び第２の筒部で
構成した支持脚を支持ヘッド部に接続して下方へと延ば
し、各支持脚の前記両筒部を相互に固定する固定装置を
、脚軸方向に移動可能且つ筒部の外部から操作可能な作
動ロッドと、いずれも同一方向にテーパーしており前記
両筒部のうち上側の筒部の下端付近で作動ロッド上に配
した第１及び第２のクランプ部材と、各クランプ部材の
まわりで各クランプ部材と協働可能に配した圧力素子と
、前記筒部下端にて軸方向に移動しないよう前記圧力素
子を担持し、クランプ部材の作動により圧力素子が前記
両筒部のうち外筒部の内壁面に当接するようにした保持
部材と、クランプ部材のテーパー方向に前記作動ロッド
をクランプ部材が押圧される固定装置通常作動状態でク
ランプ部材が前記圧力素子を外筒部の内壁面に、両筒部
間に手によつて外せる程度の摩擦的接続をもたらす力で
、押圧するようにしたことを特徴とする支持スタンド。 ２）弾性素子を、保持部材と作動ロッド上の受け素子と
の間に作動可能に配した、特許請求の範囲第１）項に記
載の支持スタンド。 ３）上側の内筒部の下端に固着された中空構造の第１の
保持部材を、各クランプ部材に作動関連した圧力素子相
互間で囲むよう、クランプ部材を相互に離間して作動ロ
ッド上に固定配置し、弾性素子を第１の保持部材内で第
１の保持部材と作動ロッドとの間に機械的にプリストレ
スされた状態で配された圧縮ばねで構成した、特許請求
の範囲第１）項に記載の支持スタンド。 ４）保持部材が弾性戻り止め部を含み、内筒部の下端領
域に窓部を設け、支持脚組立時に前記戻り止め部を前記
窓部内に係合させる、特許請求の範囲第１）項に記載の
支持スタンド。 ５）内筒部内に回転不能にねじ山付スリーブを配し、作
動ロッドの一部分に雄ねじを刻設して、該雄ねじを前記
スリーブのねじ山にねじ込むことにより弾性素子のプレ
ストレスを調節できるようにした、特許請求の範囲第１
）項に記載の支持スタンド。 ６）圧力素子が、外法を内筒部の内法に合わせた管状部
から成り、対応するクランプ部材と協働する弾性ガイド
素子を該管状部に隣接して設け、該弾性ガイド部材を内
筒部に形成された窓部を介して外筒部の内壁面に延出さ
せる特許請求の範囲第１）項に記載の支持スタンド。 ７）支持されるべき機器を上部に取付ける支持ヘッド部
と、前記機器を所要の高さに配するため地面等の支持面
に載るようにした第１端及び前記支持ヘッド部に接続し
た第２端を有し各々が入れ子式に配した第１及び第２の
筒部で構成され外側の方の筒部が支持脚下部を成し内側
の方の筒部が支持脚上部を成して前記支持ヘッド部に接
続された３本の支持脚と、前記各支持脚の前記第１及び
第２の筒部を相互に所要位置に保持して支持脚長さを所
要値に設定する固定装置と、で支持スタンドを構成し、
前記固定装置を、前記各脚内を延び外部から作動可能で
前記各脚の第２端に少なくとも略隣接して配した第１端
と各脚内を内筒部下端へと延びる第２端とを有する作動
ロッドと、前記作動ロッドの前記第２端付近で前記作動
ロッドに担持され相互に離間し各脚に対して軸方向に同
じ向きにテーパーした第１及び第２のクランプ部材と、
前記クランプ部材のまわりに配し前記クランプ部材と協
働し外面を外筒部の内壁面に当接できるようにした圧力
素子と、内筒部の下端に前記各圧力素子を軸方向に略動
かないよう保持する保持部材と、前記作動ロッドに作用
して作動ロッドを通常作動位置へと押圧できるようにし
た弾性素子とで構成し、通常作動位置では前記圧力素子
の中ぐり穴に対応した前記クランプ部材のテーパー形状
により前記圧力素子が外方へ押圧されて外筒部の隣接す
る内面と摩擦接触して、前記第１及び第２の筒部間の手
で外せる程度の摩擦的施錠となり、前記第１及び第２の
筒部の予期せぬ相対移動を防ぐようにしたことを特徴と
する支持スタンド。[Scope of Claims] 1) A support leg constituted by first and second cylindrical parts movable in a nesting manner with respect to each other is connected to the support head part and extends downward, and both the cylindrical parts of each support leg are connected to the support head part and extend downward. A fixing device for fixing the two to each other is connected to an actuating rod that is movable in the direction of the leg axis and that can be operated from the outside of the tube, both of which taper in the same direction, near the lower end of the upper tube of the two tubes. first and second clamp members disposed on the actuating rod, a pressure element disposed around each clamp member so as to be able to cooperate with each clamp member, and a pressure element arranged at the lower end of the cylinder so as not to move in the axial direction. a holding member that supports a pressure element so that the pressure element comes into contact with an inner wall surface of an outer cylindrical part of the two cylindrical parts when the clamp member is operated; and a clamp member that presses the operating rod in a tapered direction of the clamp member. In a normal operating state, the clamping member presses the pressure element against the inner wall surface of the outer barrel with a force that creates a frictional connection between the two barrels that can be removed by hand. Features a support stand. 2) A support stand according to claim 1, wherein an elastic element is operatively arranged between the holding member and the receiving element on the actuating rod. 3) The clamp members are spaced apart from each other and placed on the actuating rod so that the first retaining member of hollow structure fixed to the lower end of the upper inner cylinder is surrounded between the pressure elements actuatingly associated with each clamp member. Claim 1, wherein the elastic element comprises a compression spring which is fixedly arranged and is arranged in a mechanically prestressed manner in the first holding member between the first holding member and the actuating rod. ). 4) According to claim 1), the holding member includes an elastic detent, and a window is provided in the lower end region of the inner cylinder, and the detent is engaged in the window during assembly of the support leg. Support stand as described. 5) A threaded sleeve is non-rotatably disposed within the inner cylinder, a male thread is carved into a portion of the actuating rod, and the prestress of the elastic element can be adjusted by screwing the male thread into the thread of the sleeve. Claim No. 1
). 6) The pressure element consists of a tubular part whose outer diameter matches the inner diameter of the inner cylindrical part, and an elastic guide element cooperating with a corresponding clamping member is provided adjacent to the tubular part, and the elastic guide member is arranged within the tubular part. The support stand according to claim 1, which extends to the inner wall surface of the outer cylinder part through a window formed in the cylinder part. 7) a support head part on which the equipment to be supported is attached; a first end resting on a support surface such as the ground in order to arrange the equipment at a required height; and a second end connected to the support head part; It is composed of first and second cylindrical parts each having an end and arranged in a nested manner, the outer cylindrical part forming the lower part of the support leg, and the inner cylindrical part forming the upper part of the support leg. a fixing device that holds three support legs connected to the support head portion and the first and second cylindrical portions of each of the support legs in a desired position to set the length of the support legs to a desired value; Configure the support stand with
The locking device has a first end extending within each leg, a first end operable from the outside and disposed at least substantially adjacent a second end of each leg, and a second end extending within each leg to a lower end of the inner cylinder. first and second clamp members carried by the actuating rod near the second end of the actuating rod, spaced apart from each other and tapered in the same axial direction relative to each leg;
a pressure element disposed around the clamp member and cooperating with the clamp member so that its outer surface can come into contact with the inner wall surface of the outer cylinder; and an elastic element that acts on the actuating rod to press the actuating rod to a normal operating position, and in the normal operating position, the elastic element that corresponds to the bore hole of the pressure element Due to the tapered shape of the clamp member, the pressure element is pressed outward and comes into frictional contact with the adjacent inner surface of the outer cylindrical portion, resulting in a frictional lock between the first and second cylindrical portions that can be removed by hand. A support stand characterized in that the first and second cylindrical parts are prevented from unexpected relative movement.