JPH07207922A - Compound telescoping structure - Google Patents
Compound telescoping structureInfo
- Publication number
- JPH07207922A JPH07207922A JP2186394A JP2186394A JPH07207922A JP H07207922 A JPH07207922 A JP H07207922A JP 2186394 A JP2186394 A JP 2186394A JP 2186394 A JP2186394 A JP 2186394A JP H07207922 A JPH07207922 A JP H07207922A
- Authority
- JP
- Japan
- Prior art keywords
- telescoping
- stretchable
- composite
- telescopic
- columns
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Movable Scaffolding (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、複数の筒体を入れ子式
で伸縮自在に構成した伸縮柱の複数本を横梁で連結し、
各伸縮柱を同期して伸縮させるようにした複合伸縮構造
物に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plurality of telescopic columns in which a plurality of tubular bodies are telescopically configured to be telescopically connected by a lateral beam.
The present invention relates to a composite stretchable structure in which each stretchable column is stretched in synchronization.
【０００２】[0002]
【従来の技術】従来から、高い箇所での各種の作業等、
或は、高い箇所に対する各種の操作等においては、高所
作業車や大型の専用車輌に塔載されたクレ−ン，組立式
仮設足場等が利用されている。2. Description of the Related Art Conventionally, various work at high places,
Alternatively, for various operations at high places, cranes mounted on high-place work vehicles or large dedicated vehicles, prefabricated temporary scaffolds, etc. are used.
【０００３】しかし、専用作業車や車輌が立入れない狭
い場所や輸送手段が利用できないような場所における高
所での作業等や高所からの作業等、例えば、山あいに立
設された送電線用の鉄塔や送電線自体の塩害や鳥類によ
る糞害に対する清浄等のメンテナンス等の作業や、山谷
における鉄塔や橋脚の架設，取壊し作業及びメンテナン
ス等の作業、或は、前記メンテナンス等を目的とした検
査や診断などにおいては、有人ヘリコプタ−で輸送可能
な連設機材（3tまで）の利用や、仮設足場の築造により
前記の各種作業等を行っているのが現状である。However, work at a high place or work at a high place in a narrow place where a dedicated work vehicle or vehicle cannot enter or a place where transportation means cannot be used, for example, a power transmission line erected in a mountain For the purpose of maintenance such as cleaning of steel towers and transmission lines themselves against salt damage and fecal damage from birds, construction of steel towers and bridge piers in mountain valleys, demolition work and maintenance, or the above-mentioned maintenance For the inspection and diagnosis, it is the current situation that the above-mentioned various operations are carried out by using continuous equipment (up to 3 tons) that can be transported by manned helicopters and by constructing temporary scaffolds.
【０００４】しかし乍ら、大形建機を使用しない作業の
非能率や仮設足場を組立てる労力，時間などは、現場作
業上の大きなネックになっている。However, the inefficiency of work that does not use a large-sized construction machine, the labor and time for assembling the temporary scaffolding, etc. are major obstacles for field work.
【０００５】[0005]
【発明が解決しようとする課題】そこで、本発明は、上
記のような専用作業車や大型車輌等の立入りや搬入がで
きないような場所で使用するのにきわめて好適であっ
て、従来の仮設足場と比較して、組立，分解の手間がき
わめて容易な伸縮構造物であって、標準的伸縮柱の複数
本を複合的に組合せて一体化し巨大な伸縮構造物を簡単
に形成する手段を提供することを課題としてなされたも
のである。Therefore, the present invention is extremely suitable for use in a place such as the above-described dedicated work vehicle or large-sized vehicle that cannot be entered or carried in, and the conventional temporary scaffolding. It is a telescopic structure that is extremely easy to assemble and disassemble compared to, and provides a means for easily forming a huge telescopic structure by combining and integrating multiple standard telescopic columns. This was done as an issue.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決すること
を目的としてなされた本発明の伸縮構造物の構成は、入
れ子式の複数の筒体で構成される同一形状寸法の複数の
伸縮柱の同一位置にある各筒体の頂部を筒体と同等又は
同等以上の曲げ剛性をもつ横梁で相互に連結し、且つ、
各伸縮柱を同期的に伸縮させる駆動装置を備えた複数の
伸縮柱から成ることを特徴とするものである。The structure of the stretchable structure of the present invention made for the purpose of solving the above-mentioned problems is a structure in which a plurality of telescopic columns having the same shape and dimensions are formed by a plurality of telescopic cylinders. The tops of the cylinders at the same position are mutually connected by a cross beam having bending rigidity equal to or higher than that of the cylinder, and
The present invention is characterized by comprising a plurality of telescopic columns provided with a drive device for synchronously telescopically extending and contracting each of the telescopic columns.
【０００７】[0007]
【実施例】次に本発明の実施例を図に拠り説明する。図
１は本発明伸縮構造物の一例の縮小状態における要部を
示す斜視図、図２は図１の構造物の伸長状態を示す斜視
図、図３は本発明構造物の構造力学的説明のための正面
図である。Embodiments of the present invention will now be described with reference to the drawings. 1 is a perspective view showing an essential part of an example of a stretchable structure of the present invention in a contracted state, FIG. 2 is a perspective view showing an expanded state of the structure of FIG. 1, and FIG. 3 is a structural mechanical explanation of the structure of the present invention. FIG.
【０００８】本発明の伸縮構造物に採用できる複数の筒
体を入れ子式で伸縮自在にする構造は、油圧，空圧，水
圧による伸縮構造のほか、公知の伸縮構造のものであれ
ばどのような伸縮構造のものでも適用できる。As a structure for telescopically expanding a plurality of cylinders that can be adopted in the expandable structure of the present invention, any expandable structure by hydraulic pressure, pneumatic pressure, hydraulic pressure, or any known expandable structure can be used. It can also be applied with a flexible structure.
【０００９】本発明の伸縮構造物は、上記の公知の入れ
子式の複数の筒体による伸縮構造を具備した複数の伸縮
筒体を、列状乃至は環状に並べ、同じ高さの筒体同士の
先端部を、筒体と同等乃至は同等以上の剛性を持つ横梁
部材により連結し、複数の伸縮筒体を一体の伸縮筒体と
して伸縮できるようにしたものである。以下、この点に
ついて図１〜図３により説明する。因に、複数本の伸縮
支柱を単に平行に並べて剛性の乏しい鋼帯などで連結し
ただけのものは、各筒体同士の横梁部材による結合のよ
うな複合による剛性強化の効果が全くないため、本発明
の複数の伸縮支柱が横梁で結合一体化された伸縮構造物
とは別異のものである。The stretchable structure of the present invention comprises a plurality of stretchable tubular bodies having the stretchable structure of the above-mentioned known nesting-type tubular bodies arranged in a row or a ring so that the tubular bodies having the same height are joined together. The distal end portion of is connected by a cross beam member having rigidity equal to or higher than that of the tubular body so that a plurality of telescopic tubular bodies can be expanded and contracted as an integral telescopic tubular body. Hereinafter, this point will be described with reference to FIGS. By the way, since a plurality of telescopic columns are simply arranged in parallel and connected by steel strips having poor rigidity, there is no effect of rigidity enhancement due to compounding such as coupling of each tubular body by a cross beam member, This is different from the stretchable structure in which a plurality of stretchable columns of the present invention are integrally connected by a horizontal beam.
【００１０】図３において、２本の独立した支柱Ｐを、
複数の充分剛性の大きい横梁Ｂで連結したラ−メン構造
の断面２次モ−メントIcは、前記１本の支柱Ｐ単独の断
面２次モ−メントIpの２倍より大きい。この場合、各横
梁Ｂ自体の長さ（２本の支柱Ｐの間隔）と、横梁Ｂ同士
の上下の間隔および支柱と横梁の剛性値が次の式を満足
していればよい。In FIG. 3, two independent columns P are
The cross-section secondary moment Ic of the rigid frame structure connected by a plurality of transverse beams B having sufficiently high rigidity is larger than twice the cross-section secondary moment Ip of the single pillar P alone. In this case, the length of each horizontal beam B itself (the interval between the two columns P), the vertical interval between the horizontal beams B, and the rigidity value of the column and the horizontal beam may satisfy the following formula.
【００１１】即ち、 Eb・Ib／Ls×Ld／Ep・Ip≧１ である。ここで、Ep，Ebは、それぞれ支柱Ｐと横梁Ｂの
縦弾性値、Ip，Ibは前記支柱Ｐと横梁Ｂの断面２次モ−
メント、Ld，Lsは前記横梁Ｂの長さと設置間隔である。
従って、例えば、４本の支柱を等間隔に正方形に配置
し、各支柱を上記の条件を満足する複数の横梁で連結す
れば、４面の平面ラ−メン柱で囲まれた構造となり、各
面に直角な方向に対して支柱を単独の場合の４倍以上の
剛性が得られる。That is, Eb · Ib / Ls × Ld / Ep · Ip ≧ 1. Here, Ep and Eb are the longitudinal elasticity values of the column P and the horizontal beam B, respectively, and Ip and Ib are the secondary cross-section modes of the column P and the horizontal beam B, respectively.
Ment, Ld, Ls are the length and the installation interval of the transverse beam B.
Therefore, for example, if four pillars are arranged at equal intervals in a square shape, and if each pillar is connected by a plurality of horizontal beams satisfying the above-mentioned conditions, a structure surrounded by four plane ramen pillars is obtained. Rigidity of 4 times or more can be obtained in the direction perpendicular to the plane as compared with the case of using the column alone.
【００１２】本発明の複合伸縮構造物は、上記図３のラ
−メン構造において、支柱Ｐを、入れ子式筒体による伸
縮自在構造の支柱とすると共に、この伸縮支柱を、一例
として図１，図２に例示したように４本準備して矩形の
ベ−スBaの隅部に配置する一方、各支柱Ｐの同じ高さに
位置する各筒体１〜３同士の上端部を、それぞれ横梁Ｂ
で相互に連結することにより、図１，図２に例示したよ
うな複合伸縮構造物を構成するようにしたものである。In the composite telescopic structure of the present invention, in the ramen structure shown in FIG. 3, the support P is a support of a telescopic structure formed by a telescopic tube, and the support is shown in FIG. As shown in FIG. 2, four pieces are prepared and arranged at the corners of the rectangular base Ba, while the upper ends of the cylinders 1 to 3 located at the same height of the columns P are cross beams. B
By connecting the two with each other, a composite stretchable structure as illustrated in FIGS. 1 and 2 is configured.
【００１３】即ち、図１に於て、TP1〜TP4は、伸縮支柱
の４本であって、これらの支柱TP1〜TP4は、前記ベ−ス
Ba上に四角環状をなすように配置されると共に、各支柱
TP1〜TP4を形成する入れ子式の各筒体３〜１が、それぞ
れの上端部において横梁部材13，12，11により互に連結
されている。従って、各伸縮支柱TP1〜TP4は、それらを
形成する入れ子式の各筒体３〜１の上端が、同じ高さの
もの同士で横梁部材13，12，11によって互に連結されて
いるので、連結された４本の支柱TP1〜TP4を形成する各
４本の筒体３及び同２は、それぞれ同期して、上昇又は
降下させられる。That is, in FIG. 1, TP 1 to TP 4 are four telescopic columns, and these columns TP 1 to TP 4 are the bases.
Each pillar is arranged on the Ba so as to form a square ring.
The telescopic cylinders 3 to 1 forming TP 1 to TP 4 are connected to each other by the lateral beam members 13, 12, 11 at their upper ends. Therefore, in the telescopic columns TP 1 to TP 4 , the upper ends of the telescopic cylinders 3 to 1 forming the telescopic columns TP 1 to TP 4 are mutually connected by the lateral beam members 13, 12, 11 at the same height. since each four of the cylindrical body 3 and the 2 to form a four posts TP 1 to TP 4 connected are each synchronized is raised or lowered.
【００１４】上記を換言すると、横梁部材13，12，11に
よって、同じ高さの筒体が相互に結束された各伸縮支柱
TP1〜TP4は、あたかも一本の伸縮支柱と同じように伸縮
される一方、縮小時に、横梁部材11〜13による連結を解
けば、各伸縮支柱TP1〜TP4は、夫々が分離されて独立し
た伸縮支柱として取扱うことが出来るので、取扱いが容
易になるほか、次のような利点がある。In other words, the telescopic columns in which the cylindrical members of the same height are bound together by the cross beam members 13, 12, 11.
TP 1 to TP 4 are expanded and contracted as if they were a single telescopic column, but when contracted, the telescopic columns TP 1 to TP 4 are separated by disconnecting the cross beam members 11 to 13. Since it can be handled as an independent telescopic column, it is easy to handle and has the following advantages.
【００１５】即ち、図１，図２に示した同じ形状，構造
の複数の伸縮支柱が複合一体化された本発明の伸縮構造
物と同等の伸長高さ、耐垂直荷重，耐横荷重を持つ伸縮
支柱を、単一の入れ子式の伸縮支柱により形成すると、
当該単一の伸縮支柱では、入れ子式の各筒体単独の強度
を十分なものとする必要があるため、各筒体それぞれの
外径，肉厚、或は、伸縮支柱全体の縮小時の高さ、もし
くは、全重量が大きなものとなり、縮小時にした状態で
も取扱いにくいものとなる。That is, it has the same extension height, vertical load resistance and lateral load resistance as the stretchable structure of the present invention in which a plurality of stretchable columns having the same shape and structure shown in FIGS. 1 and 2 are combined and integrated. When the telescopic support is formed by a single telescopic support,
In the single telescopic column, it is necessary to make the strength of each nested tubular body sufficient, so the outer diameter and wall thickness of each tubular body, or the height of the entire telescopic column when it is reduced. Or, the total weight becomes large, and it becomes difficult to handle even when it is reduced.
【００１６】これに対し、本発明の複合伸縮構造物は、
個々に分離立設される４本の伸縮支柱TP1〜TP4を横梁部
材11〜13で結合一体化し、後から各支柱TP1〜TP4を分離
できるようにしたので、結合一体化された状態において
単独の伸縮支柱と殆んど同等、或は、多少大きめの自重
であっても、分離された各伸縮支柱TP1〜TP4のそれぞれ
は、単独の伸縮支柱１本の自重に比べ約１／４前後程度
と軽量であり、しかも、各伸縮支柱TP1〜TP4の縮小時の
長さも、単独の伸縮支柱よりも小さく形成できる。従っ
て、本発明複合伸縮構造物は、各伸縮支柱TP1〜TP4をバ
ラした状態で取扱い可能であるから、取扱い単位容量や
重量が小さく、運搬する上でも便利である。On the other hand, the composite stretchable structure of the present invention is
Four telescopic pillars TP 1 to TP 4 that are individually separated erected integrally bonding with the cross beam member 11 to 13, since to be able to separate the post TP 1 to TP 4 later, it is integrally connected In the state, even if the weight is almost equal to or slightly larger than the individual telescopic columns, each of the separated telescopic columns TP 1 to TP 4 is about the weight of one individual telescopic column. 1/4 is around about and lightweight, yet, also the length of the time of reduction of the telescopic strut TP 1 to TP 4, can be formed smaller than a single telescopic strut. Accordingly, the present invention composite stretch structure, because it is possible to handle in a state in which rose each telescopic strut TP 1 to TP 4, the handling unit volume and weight are small, it is convenient also on carrying.
【００１７】上記実施例における本発明の複合伸縮構造
物は、４本の伸縮支柱TP1〜TP4を平面四角形をなす環状
に配置したが、本発明複合伸縮構造物は、環状であれ
ば、三角形をなす環状、或は、五角形以上の多角形環状
に形成できる。また、各伸縮支柱TP1〜TPnの複数本を列
状に配置して各列の支柱TP1〜TPn同士を、横梁部材11〜
13により結合し複合一体化してもよい。列状配置は、一
列、又は、２列以上でもよく、また、２列以上の場合に
は、各列における同じ高さの筒体の上端を別の横梁部材
で結合することにより、平面格子状をなす複合伸縮構造
物に形成することができる。In the composite stretchable structure of the present invention in the above-mentioned embodiment, the four stretchable columns TP 1 to TP 4 are arranged in an annular shape forming a plane quadrangle. It can be formed in a triangular ring shape or a polygonal ring shape of pentagon or more. Further, a plurality of telescopic columns TP 1 to TPn are arranged in a row, and columns TP 1 to TPn in each column are connected to each other by the horizontal beam member 11 to
You may combine by 13 and may be compounded and integrated. The rows may be arranged in one row or in two or more rows. In the case of two or more rows, the upper ends of the cylinders of the same height in each row are connected by another horizontal beam member to form a plane lattice shape. Can be formed into a composite stretchable structure.
【００１８】また、実施例の４本の伸縮支柱TP1〜TP
4は、夫々に、伸縮動作用のモ−タ等の伸縮駆動源を、
個々に具備させてもよいが、本発明の複合伸縮構造物に
おいては、図示しないが、モ−タ等の駆動源を１個のみ
設け、各筒体の夫々に、ネジ等の伸縮力伝達体に伸縮力
を分岐して伝達するようにしてもよい。このようにする
と、個々にモ−タ等の駆動源が設けられている場合に比
べ、同期をとる点で容易になる。Further, the four telescopic columns TP 1 to TP of the embodiment
4 is a telescopic drive source such as a motor for telescopic operation,
Although not shown, in the composite elastic structure of the present invention, only one drive source such as a motor is provided, and each cylinder is provided with an elastic force transmitting member such as a screw. The elastic force may be branched to be transmitted. This facilitates synchronization in comparison with the case where a drive source such as a motor is provided individually.
【００１９】更に、本発明では、上記実施例の複合伸縮
構造物を、少なくとも２段重ねにして設け、複合化を進
めることもできる。これは、本発明複合構造物の伸縮度
合をより大きくすると共に、支持荷重を大きくしたい場
合に好適である。即ち、本発明伸縮構造物において、モ
−タ等の伸縮駆動源が最下段の筒体に設けられている場
合、一本の伸縮支柱に用いられる入れ子式筒体の本数は
自づから限度があるが、中間にモ−タの駆動源を使用し
た場合と同様に、複合伸縮構造物を多段に重ねると、全
体としての伸縮度合を大きくできるのみならず、支持荷
重も大きくできる一方、分解したときの各伸縮支柱は、
軽量，コンパクトなもので足りるからである。Furthermore, in the present invention, the composite stretchable structure of the above-mentioned embodiment may be provided in a stack of at least two stages to promote the composite formation. This is suitable when it is desired to increase the degree of expansion and contraction of the composite structure of the present invention and increase the supporting load. That is, in the telescopic structure of the present invention, when the telescopic drive source such as a motor is provided in the lowermost tubular body, the number of the telescopic tubular bodies used for one telescopic column is limited by itself. However, as in the case of using a motor drive source in the middle, by stacking the composite stretchable structures in multiple stages, not only the degree of expansion and contraction as a whole can be increased but also the supporting load can be increased, while disassembling When each telescopic column is
This is because light weight and compact suffice.
【００２０】[0020]
【発明の効果】本発明は以上の通りであって、従来は専
ら単独支柱の型式で伸縮自在に形成されていた伸縮支柱
を、同じ型式の伸縮支柱の２本以上を列状又は環状に並
べ、同じ高さに位置する各筒体の上端部を、筒体と同等
乃至は同等以上の曲げ剛性をもつ横梁部材で結合するこ
とにより、単独支柱の複数本が複合的に一体結合された
複合伸縮構造物を形成できるので、特に、大きな荷重を
地上から高い位置において支持し、その位置で様々な作
業や仕事をするために使用するための伸縮自在の構造物
としてきわめて有用である。As described above, the present invention is such that two or more telescopic struts of the same type are arranged in a row or an annular shape, while the telescopic struts, which were conventionally formed exclusively by a single stanchion type so as to be extendable and retractable. , The upper ends of the cylinders located at the same height are connected by a cross beam member having a bending rigidity equal to or higher than that of the cylinders, so that a plurality of single columns are compositely and integrally combined. Since it is possible to form a stretchable structure, it is particularly useful as a stretchable structure for supporting a large load at a high position from the ground and using it for various work or work at that position.
【００２１】また、野外において高さ50mをこえるよう
な高い仮設アンテナを設置しようとする場合に、単独支
柱では運搬困難な寸法，重量となるが、本発明の複合伸
縮構造物は分解して容易に輸送し、現地で簡単に組立て
ることができるのできわめて有用である。In addition, when installing a high temporary antenna that exceeds 50 m in height outdoors, the size and weight of the single strut are difficult to carry, but the composite telescopic structure of the present invention is easy to disassemble. It is extremely useful as it can be shipped to the country and easily assembled on site.
【００２２】さらに、本発明の複合伸縮構造物は、標準
仕様の複数の単独伸縮柱を組合わせて構成できるので、
価格面でも有利であるうえに、不要のとき分解して単独
伸縮柱を個々に使用することも可能であり、その経済効
果も大きい。Further, since the composite elastic structure of the present invention can be constructed by combining a plurality of single elastic columns of standard specifications,
In addition to being advantageous in terms of price, it is also possible to disassemble when not needed and use individual expansion columns individually, which has a large economic effect.
【図１】本発明伸縮構造物の一例の縮小状態における要
部を示す斜視図。FIG. 1 is a perspective view showing a main part of an example of a stretchable structure of the present invention in a reduced state.
【図２】図１の構造物の伸長状態を示す斜視図。FIG. 2 is a perspective view showing an extended state of the structure shown in FIG.
【図３】本発明構造物の構造力学的説明のための正面図FIG. 3 is a front view for explaining the structural mechanical of the structure of the present invention.
１，２，３ 筒体 11，12，13 横梁部材 TP1〜TP4 伸縮支柱 Ｂ 横梁1, 2, 3 Cylindrical body 11, 12, 13 Horizontal beam member TP 1 ~ TP 4 Telescopic support B B Horizontal beam
Claims (8)
形状寸法の複数の伸縮柱の同一位置にある各筒体の頂部
を筒体と同等又は同等以上の曲げ剛性をもつ横梁で相互
に連結し、且つ、各伸縮柱を同期的に伸縮させる駆動装
置を備えた複数の伸縮柱から成ることを特徴とする複合
伸縮構造物。1. A cross beam having a bending rigidity equal to or higher than that of the tubular body is mutually provided at the top of each tubular body at the same position of a plurality of telescopic columns having the same shape and dimensions and formed of a plurality of telescopic tubular bodies. A composite stretchable structure, comprising a plurality of stretchable columns that are connected to each other and that include a drive device that synchronously stretches each stretchable column.
乃至は任意の多角形をなす環状配置とした請求項１の複
合伸縮構造物。2. The composite stretchable structure according to claim 1, wherein the plurality of stretchable columns are connected to each other in an annular arrangement having a triangular shape, a quadrangular shape or an arbitrary polygonal shape.
合伸縮構造物。3. The composite stretchable structure according to claim 2, wherein the annular arrangement is a multi-annular arrangement.
は任意の多数列の列状配置とした請求項１の複合伸縮構
造物。4. The composite stretchable structure according to claim 1, wherein the plurality of stretchable columns are connected in a single row, two rows or any number of rows.
うにした請求項１〜３のいずれかの複合伸縮構造物。5. The composite stretchable structure according to claim 1, wherein each stretchable column is driven by one driving device.
た請求項１〜３若しくは５の複合伸縮構造物。6. The composite elastic structure according to claim 1, wherein the composite elastic structures having an annular arrangement are stacked in multiple stages.
た請求項１若しくは４又は５の複合伸縮構造物。7. The composite stretchable structure according to claim 1, wherein the composite stretchable structures arranged in rows are stacked in multiple stages.
単独伸縮柱を積層載架した請求項６又は７の複合伸縮構
造物。8. A multi-layered composite stretchable structure is provided with:
The composite elastic structure according to claim 6 or 7, wherein individual elastic columns are stacked and mounted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2186394A JPH07207922A (en) | 1994-01-24 | 1994-01-24 | Compound telescoping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2186394A JPH07207922A (en) | 1994-01-24 | 1994-01-24 | Compound telescoping structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07207922A true JPH07207922A (en) | 1995-08-08 |
Family
ID=12066966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2186394A Pending JPH07207922A (en) | 1994-01-24 | 1994-01-24 | Compound telescoping structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07207922A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2488793A (en) * | 2011-03-08 | 2012-09-12 | Sherif Sobhi Kamel Saad | Low profile hydraulic lifting device for use with furniture and household equipment |
| CN111847303A (en) * | 2019-04-24 | 2020-10-30 | 明基三丰医疗器材股份有限公司 | Working table column |
-
1994
- 1994-01-24 JP JP2186394A patent/JPH07207922A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2488793A (en) * | 2011-03-08 | 2012-09-12 | Sherif Sobhi Kamel Saad | Low profile hydraulic lifting device for use with furniture and household equipment |
| CN111847303A (en) * | 2019-04-24 | 2020-10-30 | 明基三丰医疗器材股份有限公司 | Working table column |
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