JP3464046B2 - Telescopic surveying feet - Google Patents
Telescopic surveying feetInfo
- Publication number
- JP3464046B2 JP3464046B2 JP16756994A JP16756994A JP3464046B2 JP 3464046 B2 JP3464046 B2 JP 3464046B2 JP 16756994 A JP16756994 A JP 16756994A JP 16756994 A JP16756994 A JP 16756994A JP 3464046 B2 JP3464046 B2 JP 3464046B2
- Authority
- JP
- Japan
- Prior art keywords
- leg
- pressure contact
- contact portion
- inner cylinder
- cylindrical body
- 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.)
- Expired - Fee Related
Links
Landscapes
- Mutual Connection Of Rods And Tubes (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、伸縮可能な測量用脚に
係り、特に外側筒体と内側筒体とを簡単に固定すること
のできる測量用脚に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an extendable surveying leg, and more particularly to a surveying leg capable of easily fixing an outer cylinder and an inner cylinder.
【0002】[0002]
【従来の技術】従来から伸縮可能なポールや三脚、例え
ばカメラ三脚では、三脚の伸縮の固定をする際、ねじ式
の固定用グリップを形成し、この固定用グリップを回動
することによって伸縮した脚部の固定を行っている。ま
た、物干竿や釣竿等では、竿自体を回すことで、内部固
定用ボスを軸偏心させて、この軸偏心により固定してい
る。2. Description of the Related Art Conventionally, with a retractable pole or tripod, for example, a camera tripod, a screw type fixing grip is formed when the tripod is fixed, and the fixing grip is rotated to expand or contract. The legs are fixed. In the case of a clothesline or a fishing rod, the rod itself is rotated so that the internal fixing boss is axially eccentric and is fixed by the axial eccentricity.
【0003】伸縮用三脚の固定に関しては、上記の他に
多数の技術が提案されている。例えば、外筒杵の頭端側
内部に、上辺部を略水平状とし、且つ下辺部を傾斜状に
恰も「型状に削孔せる溝孔を相対的に数箇形成してなる
環状体を固定設け、また該外筒杵に嵌挿連結すべき内筒
杵の内端部近傍箇所に前記溝孔と型状の上辺部を略水平
状とし、且つ下辺部を傾斜状に形成してなる突起体を一
体的に凸出設け、更に前記溝孔の傾斜下辺部ならびに突
起体の傾斜下辺部に鋸歯状の係合部分を夫々付設した測
量用伸縮杵における締結機構の技術(例えば実開昭49
−131961号公報)が知られている。In addition to the above, many techniques have been proposed for fixing the telescopic tripod. For example, inside the head end side of the outer cylinder pestle, the upper side is made substantially horizontal, and the lower side is inclined. The groove is formed near the inner end of the inner cylindrical punch to be fixedly inserted and connected to the outer cylindrical punch, and the upper side of the groove and the mold are substantially horizontal and the lower side is inclined. A technique of a fastening mechanism in a telescopic pestle for survey in which a protrusion is integrally provided with protrusions, and serrated engaging portions are additionally provided on the inclined lower side of the groove hole and the inclined lower side of the protrusion (for example, actual opening). 49
No. 131961) is known.
【0004】また、下端に石突き部を形成する外側筒体
の内空に、摺動盤に略同径の回動盤を偏心回動可能に軸
着し該回動盤下端に外拡勢力を持つ脚片を一体形成した
回転固定部を、内側筒体の下端部に個装して、挿嵌せし
め、伸縮自在且つ適宜位置で内側管体の捻り回動操作に
ともなって固定可能に構成した伸縮計測ボールの技術
(例えば実開昭55−172806号公報)が知られて
いる。Further, a turning plate having substantially the same diameter as the sliding plate is eccentrically rotatably attached to the inner space of the outer cylindrical body forming the stone protrusion at the lower end, and the outer expanding force is applied to the lower end of the turning plate. The rotation fixing part integrally formed with the leg piece having the structure is individually mounted on the lower end of the inner cylindrical body, is inserted, and can be expanded and contracted and can be fixed at an appropriate position by twisting and rotating operation of the inner cylindrical body. There is known a technique of the stretchable measuring ball (for example, Japanese Utility Model Laid-Open No. 55-172806).
【0005】また、金属棒の頭部に頂部に丸味の有る三
角形又は多角形の形状を設け、周囲に外側が円形で内側
が上記と同様の形状で大きさを少し大きくくり貫いた弾
性の有るパッキンを外設した内設棒、を中空円筒に挿入
した伸縮自在測量用ポールの技術(実開昭62−106
16号公報)が知られている。Further, the head of the metal rod is provided with a rounded triangular or polygonal shape at the top, and the outside has a circular shape and the inside has the same shape as the above, and has a slightly large size and has elasticity. The technology of telescopic surveying pole in which an inner rod with a packing is inserted into a hollow cylinder (actually 62-106
No. 16) is known.
【0006】さらに、外側管体の内空に内側管体を摺動
自在に挿嵌して伸縮自在となし、両管体相互の捻り回動
操作によって、適宜位置で固定可能に構成した伸縮計測
ポールにおいて、内側管体の下端部にキャップ部と半円
摺動鍔盤とからなる回転固定部を固設し、該半円摺動鍔
盤の底面部に、上下摺動盤を回転偏心軸によって偏心軸
によって偏心軸支し、該上下摺動盤の偏心軸中心から最
遠箇所に回り止め切欠部を形成し、外側管体の内壁面上
下方向に、山形突状を突成した伸縮計測ポールの技術
(実公昭62−44330号公報)が知られている。Further, the expansion / contraction measurement in which the inner tube is slidably inserted into the inner space of the outer tube to make it expandable and contractible, and the tube can be fixed at an appropriate position by twisting and rotating both tubes. In the pole, a rotation fixing portion composed of a cap portion and a semicircular sliding collar plate is fixedly provided at the lower end portion of the inner tubular body, and a vertical sliding plate is mounted on the bottom portion of the semicircular sliding collar plate to rotate the eccentric shaft. By the eccentric shaft, an eccentric shaft is supported, and a rotation-stop notch is formed at the farthest point from the center of the eccentric shaft of the vertical sliding plate, and an angle-shaped projection is formed in the vertical direction of the inner wall surface of the outer tubular body. Paul's technology (Japanese Utility Model Publication No. 62-44330) is known.
【0007】さらにまた、細径側パイプの内端部の外周
に設けられた太径側パイプの内周面に内接するスライド
部分と、スライド部分に設けられた周方向に長い溝と、
同溝内に外周面が太径側パイプの内周面および溝の底面
に弱く内接した状態として装入された弾性体ボールと、
溝の両端箇所の底面に設けられた同個所の底面と太径側
パイプの内周面との間隔を弾性体ボールの径より狭くす
る曲線のカム面と、溝の中央個所の底面とカム面との間
の個所に設けられた弾性体ボールの位置ズレ阻止用山型
突部とを備えたことを特徴とする伸縮ポール(実開平1
−67518号公報)が知られている。Furthermore, a slide portion inscribed on the inner peripheral surface of the large-diameter side pipe provided on the outer periphery of the inner end portion of the small-diameter side pipe, and a groove long in the circumferential direction provided in the slide portion,
An elastic ball inserted in the groove so that the outer peripheral surface is weakly inscribed on the inner peripheral surface of the large diameter side pipe and the bottom surface of the groove,
A curved cam surface that makes the gap between the bottom surface of the same location provided on the bottom surface of both ends of the groove and the inner peripheral surface of the large diameter side pipe smaller than the diameter of the elastic ball, and the bottom surface and cam surface at the center of the groove A telescopic pole (actual opening flat 1
No. 67518) is known.
【0008】また、頭部にプリズムを取着した外側筒体
の外周面に表示部を設け、当該外側筒体の内空に、外周
面に外側筒体の高さ寸法を合算した目盛部を設け、下端
部に石突き部を形成した内側筒体を回動且つ摺動自在に
嵌挿支持し、内側筒体の上端部に円盤体を固定し、当該
円盤体の上面に、その周縁部を歯形係合面とする回動盤
を偏心軸支し、該回動盤の上面に上向きに拡開した複数
の脚片を回動盤が偏心回動した時にその先端部が外側筒
体の内周面に圧接すべく突設し、外側筒体の内周面に複
数の縦構部を形成したことにより、いずれの位置にあっ
ても外側筒体の下端縁にある内側筒体の目盛部を読み取
ることによりプリズムの高位が瞬時に把握でき、外側筒
体と内側筒体を互いに異なる方向へ回動することによ
り、内側筒体の上端部に固定した円盤体と、該円盤体の
上面に偏心軸支した回動盤と、該回動盤の上面に突設し
た複数の脚片が回動し、回動盤の周縁部に形成した歯形
係合面と脚片の先端部とが外側筒体の内周面に圧接し、
外側筒体と内側筒体とを強固に固定し得る光波距離計用
ターゲットポールの技術(特公昭62−17681号公
報)が知られている。Further, a display portion is provided on the outer peripheral surface of the outer cylindrical body having a prism attached to the head portion, and a scale portion obtained by adding the height dimension of the outer cylindrical body to the outer peripheral surface is provided inside the outer cylindrical body. An inner cylindrical body having a stone projection formed at the lower end is rotatably and slidably fitted and supported, and a disc body is fixed to the upper end of the inner cylindrical body. An eccentric shaft supporting a rotary disk having a tooth-shaped engaging surface, and a plurality of leg pieces expanded upward on the upper surface of the rotary disk when the rotary disk is eccentrically rotated, its front end portion is of an outer cylindrical body. By arranging a plurality of vertical structural parts on the inner peripheral surface of the outer cylindrical body so as to project in pressure contact with the inner peripheral surface, the scale of the inner cylindrical body at the lower end edge of the outer cylindrical body at any position By reading the section, the high position of the prism can be grasped instantly, and by rotating the outer cylinder and the inner cylinder in different directions, the upper end of the inner cylinder A disk body fixed to the disk body, a rotating disk eccentrically supported on the upper surface of the disk body, and a plurality of leg pieces protruding from the upper surface of the rotating disk, and formed on the peripheral portion of the rotating disk. The tooth-shaped engaging surface and the tip of the leg piece are pressed against the inner peripheral surface of the outer cylindrical body,
A technique (Japanese Patent Publication No. 62-17681) of a target pole for an optical distance meter that can firmly fix an outer cylinder and an inner cylinder is known.
【0009】さらに、外側筒体に対し内側筒体が伸縮自
在に嵌挿された計測用伸縮ポールにおいて、該外側筒体
の外周端部付近に回動可能に嵌合された操作リング部材
と、前記外側筒体と操作リング部材との間に嵌合されか
つ該操作リング部材の内周一部にテーパーねじ部を介し
て螺合された締付けリング部材とを備え、前記外側筒体
の外周端部付近には少なくとも一か所に貫通穴を貫設
し、前記締付けリング部材には該貫通穴に位置されて前
記内側筒体の外周に当接可能な押圧部を形成して、操作
リング部材の螺進動作に伴って締付けリング部材の押圧
部を内側筒体の外周側に変位するように構成した計測用
伸縮ポールの連結固止装置(実開平5−14824号公
報)も知られている。Further, in a measuring telescopic pole in which the inner tubular body is telescopically inserted into the outer tubular body, an operation ring member rotatably fitted near the outer peripheral end of the outer tubular body, A tightening ring member fitted between the outer cylinder and the operation ring member and screwed into a part of the inner circumference of the operation ring member via a taper screw portion; and an outer peripheral end of the outer cylinder. A through hole is provided in at least one place in the vicinity, and the tightening ring member is provided with a pressing portion which is located in the through hole and can come into contact with the outer circumference of the inner cylindrical body. There is also known a connecting and locking device for measuring telescopic poles (Japanese Utility Model Laid-Open No. 5-14824), which is configured to displace the pressing portion of the tightening ring member to the outer peripheral side of the inner cylindrical body in accordance with the screwing operation.
【0010】[0010]
【発明が解決しようとする課題】前記各従来技術につい
ては、いずれも軸偏心を利用しており、軸偏心により内
側筒体と外側筒体が中心軸から偏心してしまうという不
都合がある。また外側筒体側からねじ等により固定する
技術は、外部にねじ等が露出しているために、他の機器
類との干渉の問題があったり、作業者の衣類を引っかけ
てしまうという不都合があった。In each of the above-mentioned prior arts, the shaft eccentricity is utilized, and there is a disadvantage that the inner cylinder and the outer cylinder are eccentric from the central axis due to the shaft eccentricity. In addition, the technique of fixing with a screw or the like from the outer cylinder side has a problem that the screw or the like is exposed to the outside, so there is a problem of interference with other devices or the worker's clothes are caught. It was
【0011】本発明の目的は、固定用ねじ等が外部に露
見しないだけでなく、外側筒体と内側筒体とが偏心せず
に固定できる伸縮可能な測量用脚を提供することにあ
る。It is an object of the present invention to provide an extendable surveying leg which not only does not expose a fixing screw or the like to the outside but also which can fix the outer cylinder and the inner cylinder without eccentricity.
【0012】[0012]
【課題を解決するための手段】本願請求項1に係る伸縮
可能な測量用脚は、内側筒体と、該内側筒体を収容可能
な外側筒体とからなる伸縮可能な測量用脚において、前
記外側筒体内に位置する内側筒体の先端部には、水平断
面楕円形状の圧接部を備えたボス部と、少なくとも二本
の拡開可能な開脚片に取着された介在部材からなるスト
ッパと、が配設され、前記ストッパは、ボス部の中心軸
に対して回動可能にされると共に前記開脚片及び介在部
材の厚さが、前記水平断面楕円形状の圧接部の長径側と
外側筒体の内面との距離より大きく形成されていること
を特徴とする。The extendable surveying leg according to claim 1 is an extendable surveying leg comprising an inner cylinder and an outer cylinder capable of accommodating the inner cylinder. At the tip of the inner cylinder located inside the outer cylinder, there is a boss portion having a pressure contact portion having an elliptical horizontal cross section, and an interposition member attached to at least two expandable leg pieces. A stopper is provided, the stopper is rotatable with respect to the central axis of the boss portion, and the thickness of the opening leg piece and the interposition member is the major axis side of the pressure contact portion having the elliptical horizontal cross section. It is characterized in that it is formed to be larger than the distance between the inner surface of the outer cylindrical body and the inner surface of the outer cylindrical body.
【0013】本願請求項2に係る伸縮可能な測量用脚
は、内側筒体と、該内側筒体を収容可能な外側筒体とか
らなる伸縮可能な測量用脚において、前記外側筒体内に
位置する内側筒体の先端部には、水平断面楕円形状の圧
接部を備えたボス部と、ボス部の中心から対称に延出し
た拡開可能な開脚片に対称に取着された介在部材からな
るストッパと、が配設され、前記ストッパは、ボス部の
中心軸に対して回動可能にされると共に前記開脚片及び
介在部材の厚さが、前記水平断面楕円形状の圧接部の長
径側と外側筒体の内面との距離より大きく形成されて、
前記内側筒体を回転させることにより、該内側筒体の軸
の中心で、水平断面楕円形状の圧接部が回転し、該水平
断面楕円形状の圧接部の外周面に沿って開脚片を開脚さ
せ、前記ボス部の圧接部と前記外側筒体の内周面とで介
在部材を圧接し、内側筒体と外側筒体が固定されること
を特徴とする。The extendable surveying leg according to claim 2 is a retractable surveying leg comprising an inner cylinder and an outer cylinder capable of accommodating the inner cylinder, and is located inside the outer cylinder. At the tip of the inner cylindrical body, a boss portion having a pressure contact portion having an elliptical horizontal cross section, and an interposing member symmetrically attached to a spreadable opening leg piece symmetrically extending from the center of the boss portion. And a stopper that is rotatable with respect to the central axis of the boss portion, and the thickness of the opening leg piece and the interposing member is equal to that of the pressure contact portion having the elliptical horizontal cross section. It is formed larger than the distance between the long diameter side and the inner surface of the outer cylinder,
By rotating the inner cylindrical body, the pressure contact portion having an elliptical horizontal cross section rotates at the center of the axis of the inner cylindrical body, and the open leg is opened along the outer peripheral surface of the pressure contact portion having the elliptical horizontal cross section. The interposition member is pressed against the press contact portion of the boss portion and the inner peripheral surface of the outer tubular body so that the inner tubular body and the outer tubular body are fixed.
【0014】[0014]
【作用】外側筒体内に位置する内側筒体の先端部には、
水平断面楕円形状の圧接部を備えたボス部と、少なくと
も二本の拡開可能な開脚片に取着された介在部材からな
るストッパと、が配設され、前記ストッパは、ボス部の
中心軸に対して回動可能にされると共に前記開脚片及び
介在部材の厚さが、前記水平断面楕円形状の圧接部の長
径側と外側筒体の内面との距離より大きく形成されてい
るので、内側筒体を外側筒体に対して相対回転させると
内側筒体の先端部の水平断面楕円形状の圧接部が回転
し、開脚片は内側筒体の中心軸を中心として、水平断面
楕円形の圧接部によって開脚片を開脚させながら回転さ
せられる。これにより開脚片に設けられた介在部材が、
圧接部と外側筒体周面の間に介在して、圧接部と外側筒
体とで圧接して、内側筒体及び外側筒体は中心軸に対し
て偏心せずに、内側筒体と外側筒体が固定される。[Operation] At the tip of the inner cylinder located inside the outer cylinder,
A boss portion having a pressure contact portion having an elliptical horizontal cross section and a stopper made of an interposition member attached to at least two expandable leg pieces are arranged, and the stopper is the center of the boss portion. Since the opening leg piece and the interposition member are made rotatable with respect to the shaft, the thickness of the opening leg piece and the interposition member is formed to be larger than the distance between the major diameter side of the pressure contact portion having the elliptical horizontal cross section and the inner surface of the outer cylindrical body. , When the inner cylinder is rotated relative to the outer cylinder, the press contact part of the horizontal cross-section elliptical shape at the tip of the inner cylinder rotates, and the open leg piece has a horizontal cross-section ellipse centered on the central axis of the inner cylinder. With the shape of the pressure contact part, the open leg can be rotated while opening the leg. As a result, the intervening member provided on the open leg piece is
It is interposed between the press contact portion and the outer peripheral surface of the outer cylinder, and is pressed against the outer contact of the outer peripheral cylinder, so that the inner cylinder and the outer cylinder are not eccentric with respect to the central axis, and the inner cylinder and the outer cylinder are not eccentric. The cylinder is fixed.
【0015】[0015]
【実施例】以下、本発明の一実施例を図面に基づいて説
明する。なお、以下に説明する部材,配置等は本発明を
限定するものでなく、本発明の趣旨の範囲内で種々改変
することができるものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The members, arrangements, and the like described below do not limit the present invention and can be variously modified within the scope of the gist of the present invention.
【0016】図1乃至図3は本発明に係る第1実施例を
示すものであり、図1は伸縮可能な測量用脚を用いた三
脚の斜視図、図2は図3のA−A断面図、図3は図1の
要部拡大断面図である。FIGS. 1 to 3 show a first embodiment according to the present invention. FIG. 1 is a perspective view of a tripod using an extendable surveying leg, and FIG. 2 is a sectional view taken along line AA of FIG. 3 and 4 are enlarged cross-sectional views of the main part of FIG.
【0017】本例における伸縮可能な測量用脚Sは、外
側筒体10と、内側筒体20と、ボス部30と、ストッ
パ部40と、を主たる構成要素としており、ストッパ部
40は開脚片41と、介在部材42とから構成されてい
る。The extendable surveying leg S in this example is mainly composed of an outer cylindrical body 10, an inner cylindrical body 20, a boss portion 30, and a stopper portion 40, and the stopper portion 40 is an open leg. It is composed of a piece 41 and an interposition member 42.
【0018】本例の外側筒体10は、中空円筒状の管体
から構成されており、一端部側には脚頭と連結するため
の連結部(図示せず)が形成され、他端部の外周面には
内側筒体20の抜け止め部材13と係合する係合孔12
が対向して穿孔されている。The outer cylindrical body 10 of this embodiment is composed of a hollow cylindrical tubular body, and a connecting portion (not shown) for connecting to a leg is formed at one end portion and the other end portion. The outer peripheral surface of the engaging hole 12 that engages with the retaining member 13 of the inner tubular body 20.
Are perforated opposite to each other.
【0019】本例の抜け止め部材13は、図3で示すよ
うに、内側カバー13aと外側カバー13bとが一端部
で上記外側筒体10の厚さ分の溝部13cを形成して一
体に連結されている。そして内側カバー13aには切り
込み部13dが2カ所形成されており、内側カバー13
aは径の中心方向に可撓可能に形成されている。また内
側カバー13aの上記切り込み部13dと90度異なる
位置の外周面には、前記外側筒体10の係合孔12に嵌
合する係合突起13eが形成されている。In the retaining member 13 of this embodiment, as shown in FIG. 3, the inner cover 13a and the outer cover 13b form a groove portion 13c having the thickness of the outer cylindrical body 10 at one end and are integrally connected. Has been done. The inner cover 13a is formed with two notches 13d at two positions.
a is formed so as to be flexible in the center direction of the diameter. Further, an engagement protrusion 13e that fits into the engagement hole 12 of the outer cylindrical body 10 is formed on the outer peripheral surface of the inner cover 13a at a position different from the cut portion 13d by 90 degrees.
【0020】本例の内側筒体20は中空円筒から構成さ
れており、外側筒体10から常時露出している一端部に
石突21が配設されている。また常時は外側筒体10内
に位置している端部側には、連結ピン23を装着する連
結穴22が対向して形成されており、この連結穴22と
連結ピン23によりボス部30と内側筒体20が一体に
取り付けられている。The inner cylinder 20 of the present example is formed of a hollow cylinder, and a stone projection 21 is arranged at one end which is always exposed from the outer cylinder 10. Further, a connection hole 22 for mounting a connection pin 23 is formed facing each other on the end portion side which is normally located inside the outer cylindrical body 10. The connection hole 22 and the connection pin 23 form a boss portion 30. The inner cylindrical body 20 is integrally attached.
【0021】本例のボス部30は、ポリカーボネートに
ガラス繊維を混合した複合材料から構成されおり、図3
乃至図5で示すように、内側筒体20内に嵌入される嵌
入部31と、嵌入部31の嵌入範囲を規制するために内
側筒体20の端面と係合する係合部32と、外部に露出
した水平断面楕円形状の圧接部33と、圧接部33の中
心位置、即ちボス部30の中心であり且つ内側筒体20
の中心軸上に形成された螺孔35と、から形成されてい
る。The boss portion 30 of this example is made of a composite material obtained by mixing glass fiber with polycarbonate.
As shown in FIG. 5, a fitting portion 31 that is fitted into the inner tubular body 20, an engaging portion 32 that engages with an end surface of the inner tubular body 20 to regulate a fitting range of the fitting portion 31, and an external portion. The pressure contact portion 33 having an elliptical horizontal cross-section exposed to the inside, and the center position of the pressure contact portion 33, that is, the center of the boss portion 30 and the inner cylindrical body 20.
And a screw hole 35 formed on the central axis of the.
【0022】上記ボス部30の嵌入部31には、図3で
示すように、前記内側筒体20に形成された連結穴22
と整合する連結孔31aが形成されており、上記係合部
32は内側筒体20の外周より若干大きく形成されてい
る。上記水平断面楕円形状の圧接部33は、図4及び図
5で示すように、長径側が嵌入部31より大きく、短径
側が嵌入部31より小さく形成されている。As shown in FIG. 3, the fitting portion 31 of the boss portion 30 has a connecting hole 22 formed in the inner cylindrical body 20.
A connecting hole 31a is formed so as to match with, and the engaging portion 32 is formed to be slightly larger than the outer circumference of the inner tubular body 20. As shown in FIGS. 4 and 5, the press contact portion 33 having an elliptical horizontal cross section is formed such that the long diameter side is larger than the fitting portion 31 and the short diameter side is smaller than the fitting portion 31.
【0023】本例のストッパ部40は、図2及び図3で
示すように、二本の拡開可能な開脚片41と、この開脚
片41の端部に配設された介在部材42とから構成され
ている。As shown in FIGS. 2 and 3, the stopper portion 40 of this embodiment has two openable leg pieces 41 and an intervening member 42 arranged at the end of the openable leg pieces 41. It consists of and.
【0024】本例の開脚片41は、バネ用鋼材ステンレ
スからなる薄い板ばねから構成されており、水平断面楕
円形状の圧接部33の端面上に配置される中央係合面4
1aと、この中央係合面41aから両側へ対称に延出し
て下向き(即ち圧接部33側)へ折り曲げられた折曲部
41bから形成されている。この開脚片41の両側自由
端部である折曲部41bの先端には、介在部材42が取
着されている。The open leg piece 41 of this example is composed of a thin leaf spring made of stainless steel for springs, and the central engaging surface 4 is arranged on the end face of the pressure contact portion 33 having an elliptical horizontal cross section.
1a and a bent portion 41b that extends symmetrically from the central engagement surface 41a to both sides and is bent downward (that is, the pressure contact portion 33 side). An interposition member 42 is attached to the tip of the bent portion 41b, which is a free end portion on both sides of the open leg piece 41.
【0025】本例の介在部材42は、ポリカーボネート
とガラス繊維からなる複合材料或いは低温に強いナイロ
ンなどの、いわゆるエンジニアリングプラスチックを用
いており、介在部材42の厚さが、前記水平断面楕円形
状の圧接部33の長径側と外側筒体10の内面との距離
より大きく形成されている。そして、常時にはボス部3
0の中心軸に対して、ねじ,ビス等(以下単に「ねじ」
とする)51により中央係合面41aで圧接部33と自
由回動可能に配設されている。The intervening member 42 of this example is made of a so-called engineering plastic such as a composite material composed of polycarbonate and glass fiber or nylon resistant to low temperature. It is formed to be larger than the distance between the major axis side of the portion 33 and the inner surface of the outer cylindrical body 10. And the boss part 3 is always
Screws, screws, etc. (hereinafter simply “screw”) with respect to the center axis of 0
(51) and is arranged so as to be freely rotatable with respect to the press contact portion 33 at the central engaging surface 41a.
【0026】本例では介在部材42が開脚片41の折曲
部41bの先端両側に配設されているが、開脚片41の
外側(即ち外側筒体10の内側と接触する側)だけに配
設することもできる。この場合には、開脚片41及び介
在部材42の厚さが、水平断面楕円形状の圧接部33の
長径側と外側筒体10の内面との距離より大きく形成す
る。In this example, the interposition members 42 are arranged on both sides of the tip of the bent portion 41b of the open leg piece 41, but only on the outside of the open leg piece 41 (that is, on the side that contacts the inner side of the outer cylindrical body 10). It can also be installed in. In this case, the thickness of the open leg piece 41 and the interposition member 42 is formed to be larger than the distance between the major diameter side of the pressure contact portion 33 having an elliptical horizontal cross section and the inner surface of the outer cylindrical body 10.
【0027】上記ボス部30は次のように組み付けられ
ている。即ち、嵌入部31を内側筒体20に嵌入する
が、内側筒体20に嵌入して内側筒体20の連結穴22
と連結孔31aとを整合し、連結ピン23をこれら連結
穴22と連結孔31a内に装着して連結する。そしてこ
の連結ピン23の抜け止めのためにゴム製のカバー34
により被覆する。これによってボス部30は内側筒体2
0と一体に固定される。The boss portion 30 is assembled as follows. That is, the fitting portion 31 is fitted into the inner tubular body 20, but is fitted into the inner tubular body 20 and the connecting hole 22 of the inner tubular body 20 is fitted.
And the connection hole 31a are aligned with each other, and the connection pin 23 is mounted in the connection hole 22 and the connection hole 31a to be connected. A rubber cover 34 is provided to prevent the connecting pin 23 from coming off.
To coat. As a result, the boss portion 30 becomes the inner cylindrical body 2
It is fixed together with 0.
【0028】次に、ボス部30が装着された内側筒体2
0を外側筒体10内に挿入する。挿入は開脚片41及び
介在部材42を圧接部33の短径側に位置させた状態で
行う。これにより内側筒体20は外側筒体10内に配置
される。Next, the inner cylindrical body 2 having the boss portion 30 attached thereto
0 is inserted into the outer cylindrical body 10. The insertion is performed with the open leg piece 41 and the interposition member 42 positioned on the short diameter side of the press contact portion 33. As a result, the inner cylinder 20 is arranged inside the outer cylinder 10.
【0029】次に、上記構成からなる伸縮可能な測量用
脚Sの固定について説明すると、開脚片41が短径側の
圧接部33に位置しているときには、内側筒体20と外
側筒体10は規制されずに、内側筒体20と外側筒体1
0は自由に摺動する。従って測量用脚Sの伸縮を行うこ
とができる。そして固定をするときには、所望の位置で
内側筒体20と外側筒体10を相対回転させる。回転は
左右のいずれの方向に回転させてもよい。Next, the fixing of the extendable surveying leg S having the above structure will be described. When the open leg piece 41 is located in the pressure contact portion 33 on the short diameter side, the inner cylindrical body 20 and the outer cylindrical body are arranged. 10 is not regulated, the inner cylinder 20 and the outer cylinder 1
0 slides freely. Therefore, the surveying leg S can be expanded and contracted. When fixing, the inner cylinder 20 and the outer cylinder 10 are relatively rotated at a desired position. The rotation may be either left or right.
【0030】このように内側筒体20を外側筒体10に
対して相対回転させると、内側筒体20の先端部の水平
断面楕円形状のボス部30(即ち圧接部33)が回転
し、開脚片41は内側筒体20の中心軸を中心として、
圧接部33によって開脚片41を開脚させながら回転さ
せられる。このとき、介在部材42の厚さが、前記水平
断面楕円形状の圧接部33の長径側と外側筒体10の内
面との距離より大きく形成されているので、開脚片41
に設けられた介在部材42が、ボス部30の圧接部33
と外側筒体10周面の間に介在して、圧接部33と外側
筒体10とで圧接され、内側筒体20及び外側筒体10
は中心軸に対して偏心せずに、内側筒体20と外側筒体
10が固定される。When the inner cylinder 20 is rotated relative to the outer cylinder 10 in this manner, the boss portion 30 (that is, the pressure contact portion 33) having an elliptical horizontal cross section at the tip portion of the inner cylinder 20 is rotated and opened. The leg piece 41 is centered on the central axis of the inner tubular body 20,
The pressure contact portion 33 causes the opening leg piece 41 to rotate while opening the leg. At this time, since the thickness of the interposition member 42 is formed to be larger than the distance between the major diameter side of the pressure contact portion 33 having the elliptical horizontal cross section and the inner surface of the outer cylindrical body 10, the open leg piece 41.
The intervening member 42 provided on the pressure contact portion 33 of the boss portion 30
Is interposed between the outer cylindrical body 10 and the outer cylindrical body 10 and is pressed against the outer cylindrical body 10 by the pressure contact portion 33 and the outer cylindrical body 10.
The inner cylinder 20 and the outer cylinder 10 are fixed to each other without being eccentric with respect to the central axis.
【0031】図6及び図7は第2実施例を示すもので、
図6は図7のB−B断面図、図7は測量用脚Sの要部拡
大断面図である。本例において前記実施例と同様部材、
配置等には同一符号を付してその説明を省略する。FIGS. 6 and 7 show the second embodiment.
6 is a sectional view taken along line BB of FIG. 7, and FIG. 7 is an enlarged sectional view of a main part of the surveying leg S. In this example, the same members as in the above example,
The same symbols are given to the arrangement and the like, and the description thereof is omitted.
【0032】前記実施例ではボス部30の圧接部33の
形状を水平断面楕円形状とし、開脚片41を二本とした
例を示したが、本例ではボス部30の圧接部63の形状
を120度ごとに3つの圧接部63a,63b,63c
として、この圧接部63a,63b,63cを前記実施
例の水平断面楕円形状の長径とほぼ同じ長さに形成し、
またストッパ部40を構成する開脚片61も120度ご
とに折曲部61a,61b,61cとして形成した例を
示したものである。なお図7の符号62aは前記実施例
の符号41bと同様な折曲部である。In the embodiment described above, the pressure contact portion 33 of the boss portion 30 has an elliptical horizontal cross section and two open leg pieces 41 are shown. In this embodiment, the shape of the pressure contact portion 63 of the boss portion 30 is shown. 3 pressure contact parts 63a, 63b, 63c every 120 degrees
As the pressure contact portions 63a, 63b, 63c are formed to have substantially the same length as the major axis of the horizontal section elliptical shape of the above-mentioned embodiment,
In addition, the open leg piece 61 that constitutes the stopper portion 40 is also shown as an example in which it is formed as bent portions 61a, 61b, and 61c every 120 degrees. Reference numeral 62a in FIG. 7 is a bent portion similar to the reference numeral 41b in the above embodiment.
【0033】本実施例のようにボス部30の圧接部63
が三カ所(63a,63b,63c)となるように形成
した場合、固定した時の固定力が増大するだけでなく、
120度ごとに圧接部63が構成されているので、内側
筒体20と外側筒体10との固定において、内側筒体2
0の回転ストロークを小さくすることができる。The pressure contact portion 63 of the boss portion 30 as in this embodiment
When it is formed so that there are three places (63a, 63b, 63c), not only the fixing force when fixed is increased, but also
Since the pressure contact portion 63 is formed every 120 degrees, when fixing the inner tubular body 20 and the outer tubular body 10, the inner tubular body 2 is fixed.
The rotation stroke of 0 can be reduced.
【0034】図8及び図9は第3実施例を示すもので、
図8は図9のC−C断面図、図9は測量用脚Sの要部拡
大断面図である。本例において前記実施例と同様部材、
配置等には同一符号を付してその説明を省略する。FIGS. 8 and 9 show the third embodiment.
8 is a sectional view taken along the line CC of FIG. 9, and FIG. 9 is an enlarged sectional view of a main part of the surveying leg S. In this example, the same members as in the above example,
The same symbols are given to the arrangement and the like, and the description thereof is omitted.
【0035】前記各実施例においては、開脚片を構成し
ている折曲部が内側筒体側へ向けて折曲された例を示し
たが、本例では内側筒体と反対方向に向けて構成した例
を示すものである。In each of the above-described embodiments, an example in which the bent portion constituting the open leg piece is bent toward the inner cylindrical body side is shown, but in the present embodiment, it is directed in the opposite direction to the inner cylindrical body. It shows an example of the configuration.
【0036】即ち、本例ではボス部を2つに分割して、
嵌入部31と圧接部71としたものであり、図9で示す
ように、本例の圧接部71は、上部外周面71aが短径
と長径となった水平断面楕円形状をしており、この圧接
部71の構成は基本的に前記実施例と同様である。また
下部71bは前記開脚片41の中央係合面41aより小
さく形成されている。そして中央部には、ねじ51の配
置孔72が形成され、このねじ51の配置孔72に連続
して、ねじ孔73が穿孔されている。That is, in this example, the boss portion is divided into two,
The fitting portion 31 and the press contact portion 71 are formed. As shown in FIG. 9, the press contact portion 71 of this example has an elliptical horizontal cross section in which the upper outer peripheral surface 71a has a short diameter and a long diameter. The structure of the press contact portion 71 is basically the same as that of the above embodiment. Further, the lower portion 71b is formed smaller than the central engaging surface 41a of the opening leg piece 41. An arrangement hole 72 for the screw 51 is formed in the central portion, and a screw hole 73 is formed continuously with the arrangement hole 72 for the screw 51.
【0037】ストッパ部40の組付けは、ボス部30を
構成する係合部32の上部に、開脚片41の中央係合面
41aを介して圧接部71を嵌入部31とねじ51によ
り一体に固定する。このとき開脚片41は自由回転可能
に配設する。なお本例の圧接部71の動作は前記実施例
と同様である。The stopper portion 40 is assembled by assembling the press-contact portion 71 with the fitting portion 31 and the screw 51 on the upper portion of the engaging portion 32 constituting the boss portion 30 via the central engaging surface 41a of the opening leg piece 41. Fixed to. At this time, the open leg piece 41 is arranged to be freely rotatable. The operation of the press contact portion 71 of this example is the same as that of the above-mentioned embodiment.
【0038】本例のように折曲部41bを内側筒体20
と反対方向(即ち図9で上向き)に構成すると、内側筒
体20の摺動が円滑に行うことが出来る。なお上記実施
例では圧接部を水平断面楕円形状に形成し、開脚片を二
つにした例を示したが、これを図6及び図7と同様に、
ボス部30の圧接部の形状を120度ごとに3つの圧接
部として、水平断面楕円形状の長径とほぼ同じ長さに形
成し、また開脚片も120度ごとに折曲部として形成す
ることができる。As in this example, the bent portion 41b is provided with the inner cylindrical body 20.
If it is configured in the opposite direction (that is, upward in FIG. 9), the inner cylindrical body 20 can be smoothly slid. In the above-described embodiment, the pressure contact portion is formed to have an elliptical horizontal cross section, and the number of the open leg pieces is two. However, this is similar to FIG. 6 and FIG.
The shape of the press contact portion of the boss portion 30 should be three press contact portions every 120 degrees, and should be formed to have almost the same length as the major axis of the horizontal cross section elliptical shape, and the open leg pieces should also be formed as bent portions every 120 degrees. You can
【0039】[0039]
【発明の効果】以上のように本発明によれば、固定用ね
じ等が外部に露見しないだけでなく、内側筒体及び外側
筒体は中心軸に対して偏心せずに、内側筒体と外側筒体
が固定きる伸縮可能な測量用脚を提供できる。As described above, according to the present invention, not only the fixing screw and the like are not exposed to the outside, but the inner cylinder and the outer cylinder are not eccentric to the central axis, It is possible to provide a telescopic surveying leg that can fix the outer cylinder.
【図1】本発明に係る伸縮可能な測量用脚を用いた三脚
の斜視図である。FIG. 1 is a perspective view of a tripod using a stretchable surveying leg according to the present invention.
【図2】図3のA−A断面図である。FIG. 2 is a sectional view taken along line AA of FIG.
【図3】図1の要部拡大断面図である。FIG. 3 is an enlarged cross-sectional view of a main part of FIG.
【図4】ボス部の正面図である。FIG. 4 is a front view of a boss portion.
【図5】ボス部の側面図である。FIG. 5 is a side view of a boss portion.
【図6】第2実施例を示す図7のB−B断面図である。FIG. 6 is a sectional view taken along line BB of FIG. 7 showing a second embodiment.
【図7】測量用脚の要部拡大断面図である。FIG. 7 is an enlarged sectional view of a main part of a surveying leg.
【図8】第3実施例を示す図9のC−C断面図である。8 is a sectional view taken along line CC of FIG. 9 showing a third embodiment.
【図9】測量用脚の要部拡大断面図である。FIG. 9 is an enlarged sectional view of a main part of a surveying leg.
10 外側筒体 11 連結部 12 連結孔 13 抜け止め部材 13a 内側カバー 13b 外側カバー 13c 溝部 13d 切り込み部 20 内側筒体 21 石突 22 連結穴 23 ピン 30 ボス部 31 嵌入部 31a 連結孔 32 係合部 33 圧接部 34 螺孔 40 ストッパ部 41 開脚片 41a 中央係合面 42 介在部材 41b 折曲部 61 開脚片 61a,61b,61c 折曲部 63 圧接部 63a,63b,63c 圧接部 71 圧接部 71a 上部外周面 71b 下部 72 配置孔 73 ねじ孔 S 伸縮可能な測量用脚 10 Outer cylinder 11 Connection 12 connection holes 13 retaining member 13a inner cover 13b outer cover 13c groove 13d notch 20 Inner cylinder 21 stone foot 22 Connection hole 23 pin 30 Boss 31 Fitting part 31a Connection hole 32 Engagement part 33 Pressure contact part 34 screw holes 40 Stopper 41 open leg 41a central engaging surface 42 Intervening member 41b Bent section 61 open leg 61a, 61b, 61c Bent part 63 Pressure contact part 63a, 63b, 63c Pressure contact part 71 Pressure contact part 71a Upper peripheral surface 71b lower part 72 Placement hole 73 screw holes S Telescopic surveying leg
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) G01C 15/00 F16M 11/24 - 11/32 ─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. 7 , DB name) G01C 15/00 F16M 11/24-11/32
Claims (2)
側筒体とからなる伸縮可能な測量用脚において、前記外
側筒体内に位置する内側筒体の先端部には、水平断面楕
円形状の圧接部を備えたボス部と、少なくとも二本の拡
開可能な開脚片に取着された介在部材からなるストッパ
と、が配設され、前記ストッパは、ボス部の中心軸に対
して回動可能にされると共に前記開脚片及び介在部材の
厚さが、前記水平断面楕円形状の圧接部の長径側と外側
筒体の内面との距離より大きく形成されていることを特
徴とする伸縮可能な測量用脚。1. A stretchable surveying leg comprising an inner cylinder and an outer cylinder capable of accommodating the inner cylinder, wherein a horizontal cross section is provided at a tip portion of the inner cylinder located inside the outer cylinder. A boss portion having an oval-shaped pressure contact portion and a stopper made of an interposition member attached to at least two expandable leg pieces are arranged, and the stopper is provided on the central axis of the boss portion. The opening leg piece and the intervening member are formed to be rotatable with respect to each other, and are formed to have a thickness larger than a distance between the major diameter side of the pressure contact portion having the elliptical horizontal cross section and the inner surface of the outer cylindrical body. An extendable surveying leg.
側筒体とからなる伸縮可能な測量用脚において、前記外
側筒体内に位置する内側筒体の先端部には、水平断面楕
円形状の圧接部を備えたボス部と、ボス部の中心から対
称に延出した拡開可能な開脚片に対称に取着された介在
部材からなるストッパと、が配設され、前記ストッパ
は、ボス部の中心軸に対して回動可能にされると共に前
記開脚片及び介在部材の厚さが、前記水平断面楕円形状
の圧接部の長径側と外側筒体の内面との距離より大きく
形成されて、前記内側筒体を回転させることにより、該
内側筒体の軸の中心で、水平断面楕円形状の圧接部が回
転し、該水平断面楕円形状の圧接部の外周面に沿って開
脚片を開脚させ、前記ボス部の圧接部と前記外側筒体の
内周面とで介在部材を圧接し、内側筒体と外側筒体が固
定されることを特徴とする伸縮可能な測量用脚。2. A stretchable surveying leg comprising an inner cylinder and an outer cylinder capable of accommodating the inner cylinder, wherein a horizontal cross section is provided at a tip portion of the inner cylinder located inside the outer cylinder. A boss portion having an elliptical pressure contact portion and a stopper made of an interposition member symmetrically attached to an expandable open leg piece extending symmetrically from the center of the boss portion are arranged. Is rotatable relative to the central axis of the boss portion, and the thickness of the opening leg piece and the interposition member is greater than the distance between the major diameter side of the pressure contact portion having the elliptical horizontal cross section and the inner surface of the outer cylindrical body. By being formed large, by rotating the inner cylinder, the pressure contact portion having an elliptical horizontal cross section rotates at the center of the axis of the inner cylinder, and along the outer peripheral surface of the pressure contact portion having the elliptical horizontal cross section. The leg opening piece is opened, and the interposition member is formed between the pressure contact portion of the boss portion and the inner peripheral surface of the outer cylindrical body. An extendable surveying leg characterized in that the inner cylinder and the outer cylinder are fixed by pressure contact.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16756994A JP3464046B2 (en) | 1994-06-28 | 1994-06-28 | Telescopic surveying feet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16756994A JP3464046B2 (en) | 1994-06-28 | 1994-06-28 | Telescopic surveying feet |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0814901A JPH0814901A (en) | 1996-01-19 |
JP3464046B2 true JP3464046B2 (en) | 2003-11-05 |
Family
ID=15852174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16756994A Expired - Fee Related JP3464046B2 (en) | 1994-06-28 | 1994-06-28 | Telescopic surveying feet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3464046B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5730264B2 (en) * | 2012-10-29 | 2015-06-03 | 株式会社マイゾックス | Sliding fixing mechanism |
JP6534978B2 (en) * | 2016-08-30 | 2019-06-26 | マツ六株式会社 | Telescopic handrail |
-
1994
- 1994-06-28 JP JP16756994A patent/JP3464046B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0814901A (en) | 1996-01-19 |
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