JPH0119046Y2 - - Google Patents

Description

【考案の詳細な説明】 この考案は測量器用の平板に関する。[Detailed explanation of the idea] This invention relates to flat plates for surveying instruments.

従来、測量器の平板は第１図に示すように、平
板本体Ａと脚頭金具Ｂとから構成されており、脚
頭金具Ｂはさらに半球状の平板受部Ｃとこの平板
受部Ｃを受承する凹部を備えた三脚取付部Ｄとを
有している。Ｅは脚頭金具Ｂの中心部を貫通する
螺棒で、その上端には、平板本体Ａ内部に形成さ
れた溝Ｆに遊挿されて平板面に対し平行方向へ移
動可能な遊動板Ｇに係止される頭部Ｈを備えてい
る。このような測量器用平板において、平板受部
Ｃと三脚取付部Ｄとは大ネジＩにより固定されて
平板本体Ａの水平調節可能となつており、また、
このような大ネジＩによる固定状態において、さ
らに中蝶ネジＪにより平板本体Ａを固定すること
により測点に関する調節が可能となつている。 Conventionally, the flat plate of a surveying instrument is composed of a flat plate main body A and a leg head fitting B, as shown in Fig. 1, and the leg head fitting B further includes a hemispherical flat plate receiving part C and this flat plate receiving part C. The tripod mounting portion D includes a recessed portion for receiving the tripod. E is a screw rod that passes through the center of the leg head fitting B, and at its upper end there is a floating plate G that is loosely inserted into a groove F formed inside the flat plate main body A and is movable in a direction parallel to the flat plate surface. It has a head H that is locked. In such a flat plate for a surveying instrument, the flat plate receiving part C and the tripod mounting part D are fixed by a large screw I, so that the horizontal adjustment of the flat plate main body A is possible.
In the fixed state using the large screw I, the flat plate main body A is further fixed using the inner wing screw J, thereby making it possible to adjust the measurement points.

ところが以上のような測量器用平板において、
平板本体Ａは、上記のように、内部に溝Ｆを形成
するという複雑な加工を要し、かつ遊動板Ｇへの
螺棒Ｅの頭部Ｈの係止は、遊動板Ｇに設けられた
鍵穴状の開口を通じて行なわれるので測点調節の
際の移動により離脱等を生ずる恐れが有るという
欠点が有つた。さらに、測点調節範囲は遊動板Ｇ
の移動範囲に限られているので狭く、また、大ネ
ジＩと中蝶ネジＪとはともに三脚取付部Ｄの直下
の手が入り難い場所に位置するため、操作上不便
であるという欠点が有つた。 However, in the flat plate for surveying instruments as described above,
As mentioned above, the flat plate main body A requires complicated processing to form the groove F inside, and the head H of the screw rod E is locked to the floating plate G by a method provided on the floating plate G. Since the measurement is carried out through a keyhole-shaped opening, there is a drawback that there is a risk that the measurement point may become dislodged due to movement during adjustment of the measurement point. Furthermore, the measurement point adjustment range is
The movement range is limited, so it is narrow, and the large screw I and the middle thumb screw J are both located directly under the tripod mount D, in a place that is difficult to reach, making it inconvenient to operate. Ivy.

以上に鑑み、この考案の目的は、平板本体内部
に何ら遊動板を設けることなく、従つて平板本体
に何ら溝等の加工を要せず、測点調節を円滑かつ
広範囲で行なえ、しかもこのような測点調節後の
位置固定操作を無理なく行ないうるようにした測
量器用平板の提供にある。 In view of the above, the purpose of this invention is to allow measurement point adjustment to be carried out smoothly and over a wide range without providing any floating plate inside the flat plate body, and therefore without requiring any processing such as grooves on the flat plate body. To provide a flat plate for a surveying instrument which allows a position fixing operation after adjusting a measuring point to be carried out without difficulty.

次にこの考案の一実施例を第２図および第３図
に従つて説明する。 Next, an embodiment of this invention will be described with reference to FIGS. 2 and 3.

図中、１は平板本体、２は平板本体１の裏面中
央部において四方をネジ固定された裏板で中央部
には円形の穴３が設けられており、この裏板２の
長手方向で穴３の直径方向相対する側部には一対
のネジ軸４，４が各々その上端部を固定されてい
る。５は裏板２の下面に配設された長円形の支持
板で、中央部下面には部分球面状の凹部５ａを有
しており、この凹部５ａの両側部には上記ネジ軸
４，４を中心としてとり囲む円形の穴６，６が設
けられている。７，７は移動板５の両端部におい
て各々下向き突起５ｂにより水平面内での回転可
能に支持された係止片で、それぞれ近接するネジ
軸４を若干の隙間を隔てて狭む互いに平行な一対
のアーム７ａを有しており、これら一対のアーム
７ａの先端は対応する側の穴６を越えて延出して
いる。８，８は各々ネジ軸４，４に螺合するナツ
ト部材で、これらを緊締することにより支持板５
を係止片７，７を介して裏板２に対し位置固定可
能となつている。９は上記支持板５の凹部５ａに
対応する部分球面状の凸面１０を備えた略逆椀型
の三脚取付金具で、その中央部には、上記移動板
５の凹部５ａの中央に形成された雌ネジ部５Ｃと
螺合する雄ネジ部１２ａを備えた固定ネジ具１２
が挿通する貫通穴１３を有している。１４は固定
ネジ具１２の軸部１２ｂを若干の隙間を隔てて狭
む一対の下方に湾曲したアーム１４ａ，１４ａを
備えた案内係止片で、上記係止片７とほぼ同様な
構成をなしており、一端（図示しない）を三脚取
付金具９の底端に、該底端に平行な面内において
回転可能に支持され、他端（図示しない）は貫通
穴１３を横切つて相対する側の底端に延出してい
る。固定ネジ具１２はまた下端に大径の摘み部１
２ｃを有しており、雄ネジ部１２ａを支持板５の
雌ネジ部５ｃに螺合させて締め込むと、摘み部１
２ｃの上端肩部が案内係止片１４のアーム１４
ａ，１４ａに係止されて、支持板５を三脚取付金
具９に対し位置固定可能となつている。 In the figure, 1 is a flat plate main body, 2 is a back plate fixed with screws on all sides at the center of the back surface of the flat plate main body 1, and a circular hole 3 is provided in the center. A pair of screw shafts 4, 4 are fixed at their upper end portions to diametrically opposed sides of the screw shaft 3, respectively. Reference numeral 5 denotes an oblong support plate disposed on the lower surface of the back plate 2, which has a partially spherical recess 5a on the lower surface of the center, and the screw shafts 4, 4 are mounted on both sides of this recess 5a. A circular hole 6, 6 surrounding the center is provided. Reference numerals 7 and 7 designate locking pieces rotatably supported in a horizontal plane by downward protrusions 5b at both ends of the movable plate 5, and a pair of locking pieces parallel to each other narrowing the adjacent screw shafts 4 with a slight gap between them. The distal end of the pair of arms 7a extends beyond the hole 6 on the corresponding side. Numerals 8 and 8 are nut members that are screwed onto the screw shafts 4 and 4, respectively, and by tightening these, the support plate 5
can be fixed in position to the back plate 2 via the locking pieces 7, 7. Reference numeral 9 denotes an approximately inverted bowl-shaped tripod mounting bracket having a partially spherical convex surface 10 corresponding to the concave portion 5a of the support plate 5, and a tripod mounting bracket 9 formed at the center of the concave portion 5a of the movable plate 5. Fixing screw tool 12 equipped with a male threaded portion 12a that screws into the female threaded portion 5C
It has a through hole 13 through which it is inserted. Reference numeral 14 denotes a guide locking piece having a pair of downwardly curved arms 14a, 14a narrowing the shaft portion 12b of the fixing screw 12 with a slight gap, and having almost the same structure as the locking piece 7 described above. One end (not shown) is rotatably supported at the bottom end of the tripod mounting bracket 9 in a plane parallel to the bottom end, and the other end (not shown) is supported across the through hole 13 on the opposite side. It extends to the bottom edge of the. The fixing screw 12 also has a large diameter knob 1 at its lower end.
2c, and when the male threaded part 12a is screwed into the female threaded part 5c of the support plate 5 and tightened, the knob part 1
The arm 14 whose upper end shoulder portion is the guide locking piece 14
a, 14a, so that the support plate 5 can be fixed in position with respect to the tripod mounting bracket 9.

次に上記実施例の作用、効果を説明する。 Next, the functions and effects of the above embodiment will be explained.

まず、ナツト部材８，８および固定ネジ具１２
を全て緊締して支持板５および三脚取付金具９を
各々裏板２および支持板５に対し適宜位置に固定
した状態で三脚取付金具９に図示しない三脚を取
りつける。次に固定ネジ具１２を緩めて支持板５
の凹部５ａを三脚取付金具の凸面１０に沿つて摺
動させることにより、平板本体１を支持板５とと
もに傾動させ、水平器により、平板本体１が水平
に達した状態で固定ネジ具１２を緊締し、水平調
節を行なう。 First, the nut members 8, 8 and the fixing screw 12
A tripod (not shown) is attached to the tripod mounting bracket 9 with the support plate 5 and the tripod mounting bracket 9 fixed in appropriate positions relative to the back plate 2 and the support plate 5, respectively. Next, loosen the fixing screws 12 and
By sliding the concave portion 5a along the convex surface 10 of the tripod mounting bracket, the flat plate body 1 is tilted together with the support plate 5, and the fixing screw 12 is tightened using a level with the flat plate body 1 reaching the horizontal position. and perform horizontal adjustment.

以上のような水平調節を終えた後、次にナツト
部材８，８を緩めて、平板本体１を水平面内で移
動させることにより測点調節を行なうわけである
が、このような平板本体１すなわち裏板２の移動
は、裏板２に固定されたネジ軸４，４が対応する
支持板５の穴６，６内に位置する限り、自由に行
なうことができ、従つて裏板２は平板本体１とと
もに、その中心位置を支持板５の中心Ｐに対し、
穴６，６とほぼ同径の円Ｓの内部の範囲で動かす
ことができる。またこのような平板本体１の移動
に際し、各係止片７，７は対応するネジ軸４，４
の移動に伴なつて常にこれらを各々アーム７ａ，
７ａにより狭んだ状態で回動し、従つて裏板２は
いずれの位置においてもナツト部材８，８を緊締
することにより、支持板５に対し、対応する係止
片７のアーム７ａ，７ａを介して固定可能であ
る。ここで、平板本体１の移動範囲すなわち裏板
２の移動範囲は、支持板５の穴６，６の径を大き
く設定するとともに、それに対応して各係止片７
の各アーム７ａの長さを適宜設定することによつ
てさらに広く設定することができるので広範囲な
測点調節が可能であり、かつネジ軸４，４は、固
定ネジ具１２に対し両側部に離れて平板本体１の
周縁部寄りに位置するため、作業者の手が届き易
く、ナツト部材８，８による緊締を極めて容易に
行なうことができる。またこのような測量用平板
において平板本体１は何ら溝等の加工を要せず、
従つて通常の平板が使用可能である。 After completing the horizontal adjustment as described above, measurement point adjustment is performed by loosening the nut members 8, 8 and moving the flat plate body 1 within the horizontal plane. The back plate 2 can be moved freely as long as the screw shafts 4, 4 fixed to the back plate 2 are located in the corresponding holes 6, 6 of the support plate 5, and therefore the back plate 2 is a flat plate. Along with the main body 1, its center position is relative to the center P of the support plate 5,
It can be moved within a circle S having approximately the same diameter as the holes 6, 6. In addition, when the flat plate main body 1 moves like this, each locking piece 7, 7 is attached to the corresponding screw shaft 4, 4.
As the arms 7a and 7a move, these arms 7a and
7a, and by tightening the nut members 8, 8 in any position, the back plate 2 is rotated in a narrowed state by the arms 7a, 7a of the corresponding locking piece 7 with respect to the support plate 5. It can be fixed via. Here, the movement range of the flat plate main body 1, that is, the movement range of the back plate 2, is determined by setting the diameters of the holes 6, 6 of the support plate 5 to be large, and correspondingly setting each of the locking pieces 7.
By appropriately setting the length of each arm 7a, the measurement point can be adjusted over a wide range. Since they are located far apart and closer to the peripheral edge of the flat plate main body 1, the operator can easily reach them, and the nut members 8, 8 can be tightened very easily. In addition, in such a surveying flat plate, the flat plate main body 1 does not require any processing such as grooves,
Therefore, a normal flat plate can be used.

以上のようにこの考案は平板本体の下面に固定
された裏板と、この裏板の下面に前記平板本体の
周縁部寄りの両側部において突設されたネジ軸
と、中央部に三脚取付金具を任意角度でネジ固定
するための固定機構を備え、両側部に前記ネジ軸
が挿通する該ネジ軸の径よりも大きな穴をそれぞ
れ有する支持板と、この支持板の下面に前記穴の
下部を通る領域において当該支持板と平行な面内
で回動可能に取付けられた、前記ネジ軸に係止さ
れる係止片と、前記ネジ軸に螺合して前記支持板
を前記係止片を介して前記裏板に固定するための
ナツト部材とを有することを特徴とする測量用平
板である。 As described above, this invention includes a back plate fixed to the bottom surface of the flat plate body, a screw shaft protruding from the bottom surface of the back plate on both sides near the periphery of the flat plate body, and a tripod mounting bracket in the center. a support plate having a fixing mechanism for fixing the screws at an arbitrary angle, each having a hole on both sides that is larger than the diameter of the screw shaft through which the screw shaft is inserted; and a lower part of the hole on the lower surface of the support plate. a locking piece that is rotatably attached to the screw shaft in a plane parallel to the support plate in a region where the support plate passes through the screw shaft; A flat plate for surveying characterized in that it has a nut member for fixing to the back plate through the nut member.

本願の測量用平板では、各ナツト部材を緩めて
支持板を、対応する側の穴が裏板のネジ軸を挿通
状態で、裏板に対し平行に動かし、所望の位置に
達したならナツト部材を係止片を介して締付ける
ことで支持板を裏板に対し位置固定することがで
きる。すなわち支持板は各穴が対応するネジ軸を
囲む範囲で任意に位置設定できる。またネジ軸は
平板本体の周縁部寄りの両側部において配置され
ており、これに螺合するナツト部材の操作は平板
本体の下面側であつても作業者が容易に手を届か
せて行うことができる。さらに支持板は裏板に対
し取付け固定され、また三脚取付金具は支持板に
対し取付け固定されるものであり、平板本体には
裏板を固定するだけで済む。従つて下記の効果を
有する。 In the surveying flat plate of this application, loosen each nut member, move the support plate parallel to the back plate with the screw shaft of the back plate inserted into the hole on the corresponding side, and when the desired position is reached, remove the nut member. By tightening through the locking piece, the support plate can be fixed in position with respect to the back plate. That is, the support plate can be positioned arbitrarily within the range surrounding the screw shaft to which each hole corresponds. In addition, the screw shafts are located on both sides of the flat plate body near the periphery, so that the operator can easily reach the nut member that is screwed into the screw shaft even if it is on the bottom side of the flat plate body. I can do it. Furthermore, the support plate is attached and fixed to the back plate, and the tripod mounting bracket is attached and fixed to the support plate, so that it is sufficient to simply fix the back plate to the flat plate main body. Therefore, it has the following effects.

ａ 支持板位置の調節範囲はネジ軸を取囲む各穴
の面積を単に大きくすることにより複雑な加工
を要することなく平板本体のサイズに応じて容
易に拡大できる。a The adjustment range of the support plate position can be easily expanded according to the size of the flat plate body without requiring complicated machining by simply increasing the area of each hole surrounding the screw shaft.

ｂ 支持板の裏板に対する固定作業を作業者が容
易に手を伸ばして行なうことができるので作業
性が向上する。b. Work efficiency is improved because the worker can easily reach out and fix the support plate to the back plate.

ｃ 支持板の裏板に対する固定は複数箇所でしか
も平板本体の周縁部寄りにおいて行われるため
平板本体を確実かつ安定に保持できる。c. Since the support plate is fixed to the back plate at multiple locations and closer to the peripheral edge of the flat plate body, the flat plate body can be held reliably and stably.

ｄ 平板本体には溝等の特別な加工を必要とせず
平板本体として一般的な平板をそのまま利用で
きるので、平板本体に互換性が与えられ、また
製造コストが安価となる。d. Since the flat plate body does not require special processing such as grooves and can be used as a general flat plate as it is, the flat plate body is compatible and the manufacturing cost is low.

ｅ 支持板の裏板に対する固定はナツト部材を係
止片を介して締付けることにより行われ、この
ようなナツト部材と係止片との係合は作業者に
より外部から容易に確認できるので作業の確実
性に寄与する。e The support plate is fixed to the back plate by tightening the nut member through the locking piece, and the engagement between the nut member and the locking piece can be easily confirmed by the operator from the outside, so that the work is easy. Contributes to certainty.

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

第１図は従来例の測量器用平板を示す正面断面
図、第２図および第３図はこの考案の一実施例を
示し、第２図は測量用平板の正面断面図、第３図
は裏板と支持板との組付け状態を示す平面図であ
る。 １……平板本体、２……裏板、４，４……ネジ
軸、５……支持板、６，６……穴、７……係止
片、８，８……ナツト部材、９……三脚取付金
具。 Fig. 1 is a front sectional view showing a conventional flat plate for surveying instruments, Figs. 2 and 3 show an embodiment of this invention, Fig. 2 is a front sectional view of the flat plate for surveying, and Fig. 3 is a rear sectional view. It is a top view which shows the assembled state of a board and a support plate. 1... Flat plate body, 2... Back plate, 4, 4... Screw shaft, 5... Support plate, 6, 6... Hole, 7... Locking piece, 8, 8... Nut member, 9... ...Tripod mounting bracket.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 平板本体の下面に固定された裏板と、この裏板
の下面に前記平板本体の周縁部寄りの両側部にお
いて突設されたネジ軸と、中央部に三脚取付金具
を任意角度でネジ固定するための固定機構を備
え、両側部に前記ネジ軸が挿通する該ネジ軸の径
よりも大きな穴をそれぞれ有する支持板と、この
支持板の下面に前記穴の下部を通る領域において
当該支持板と平行な面内で回動可能に取付けられ
た、前記ネジ軸に係止される係止片と、前記ネジ
軸に螺合して前記支持板を前記係止片を介して前
記裏板に固定するためのナツト部材とを有するこ
とを特徴とする測量器用平板。 A back plate fixed to the lower surface of the flat plate main body, screw shafts protruding from the lower surface of the back plate on both sides near the peripheral edge of the flat plate main body, and a tripod mounting bracket fixed to the central part with screws at an arbitrary angle. a support plate having a hole on both sides each having a diameter larger than the diameter of the screw shaft through which the screw shaft is inserted; a locking piece that is attached to the screw shaft so as to be rotatable in a parallel plane; and a locking piece that is screwed onto the screw shaft to fix the support plate to the back plate via the locking piece. A flat plate for a surveying instrument, characterized in that it has a nut member for doing so.