JPH0326409Y2 - - Google Patents
Info
- Publication number
- JPH0326409Y2 JPH0326409Y2 JP1984049080U JP4908084U JPH0326409Y2 JP H0326409 Y2 JPH0326409 Y2 JP H0326409Y2 JP 1984049080 U JP1984049080 U JP 1984049080U JP 4908084 U JP4908084 U JP 4908084U JP H0326409 Y2 JPH0326409 Y2 JP H0326409Y2
- Authority
- JP
- Japan
- Prior art keywords
- flexible frame
- screw
- hole
- centering rod
- rod
- 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
Links
- 239000002184 metal Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 1
Description
【考案の詳細な説明】
本考案は測量機に用いる三脚の軸頭裏面に枢着
してある定芯桿用自在枠の改良に係り、従来の自
在枠は定芯桿を摺動させる長孔を設け、その枢着
部と反対側に稍広径の円孔状部を形成して、定芯
桿のねじ部を挿通し得るようにすると共に、枢着
側に軸孔を設けて軸頭裏側の円孔周縁部に着脱可
能に且つ自由に回動し得るようにねじで軸着され
ているが、三脚を繰り返し使用することにより、
軸着したねじに緩みが生じて上下方向のガタを生
じるようになると、定芯桿が円弧状部から抜け落
ちることがあつた。而して抜け落ちると汚損や毀
損により再び挿着するのに手間どり、測量上大変
支障を生じていた。[Detailed description of the invention] This invention relates to an improvement of a flexible frame for a fixed center rod which is pivotally attached to the back of the shaft head of a tripod used in a surveying instrument. A circular hole with a slightly wide diameter is formed on the side opposite to the pivoting part so that the threaded part of the centering rod can be inserted through it, and a shaft hole is provided on the pivoting side to insert the shaft head. It is attached to the periphery of the circular hole on the back side with a screw so that it can be detached and rotated freely, but by using the tripod repeatedly,
When the fixed screw became loose and began to play in the vertical direction, the centering rod could fall off from the arc-shaped portion. If it falls out, it becomes dirty or damaged, making it time-consuming to re-insert it, creating a serious problem in surveying.
本考案はかかる従来の欠点に鑑み、自在枠が上
下方向のガタを生じるようになつた場合でも、定
芯桿のねじ部が抜け落ちる惧れの全くないように
すると共に、必要に応じ定芯桿を簡単に取替え得
るようにしたものである。 In view of such conventional drawbacks, the present invention eliminates the possibility that the threaded part of the centering rod will fall off even if the flexible frame starts to play in the vertical direction, and also allows the centering rod to be removed as needed. It is designed so that it can be easily replaced.
次に図面につき本考案の実施例を説明すると、
１は脚頭であつて、その裏側の三方の凹所２には
脚上金具３を設け、脚上金具の上端部両側に突設
した支軸４を接続金具５の軸受部５′により挟持
し、脚上金具３が自在に回動し得るようにボルト
６により締着してある。 Next, an embodiment of the present invention will be explained with reference to the drawings.
Reference numeral 1 denotes a leg head, and a leg upper metal fitting 3 is provided in three recesses 2 on the back side of the leg head, and a support shaft 4 protruding from both sides of the upper end of the leg upper metal fitting is held by a bearing portion 5' of a connecting metal fitting 5. The upper leg fittings 3 are fastened with bolts 6 so that they can freely rotate.
７は脚頭１の中央部に設けた円孔であつて、裏
側の円孔７周縁部にはピン孔８を設け、円孔７の
裏側に配置されている自在枠９の軸孔１０側を接
続金具５の固定と同時にピン１１により回動自在
に枢着してある。１２は接続金具５の内側に延設
した支持部を示す。 7 is a circular hole provided in the center of the leg head 1, a pin hole 8 is provided on the peripheral edge of the circular hole 7 on the back side, and a pin hole 8 is provided on the periphery of the circular hole 7 on the back side of the shaft hole 10 of the flexible frame 9 arranged on the back side of the circular hole 7. is pivotally connected by a pin 11 at the same time as the connecting fitting 5 is fixed. Reference numeral 12 indicates a support portion extending inside the connecting fitting 5.
上記自在枠９には、定芯桿１３の筒部１３′が
摺動し得ると同時にねじ部１４が係止し得る長孔
１５を設けてあり、該長孔１５の軸孔１０側と反
対側には定芯桿ねじ部が螺合し得るねじ１６を設
けてある。従つて、定芯桿１３のねじ部１４を自
在枠９に挿着するにはねじ部１４をねじ１６に螺
合し乍ら挿通するものである。 The flexible frame 9 is provided with a long hole 15 in which the cylindrical portion 13' of the centering rod 13 can slide and at the same time the threaded portion 14 can be locked, and the long hole 15 is opposite to the shaft hole 10 side. A screw 16 is provided on the side, into which a fixed center rod screw portion can be screwed. Therefore, in order to insert the threaded portion 14 of the centering rod 13 into the flexible frame 9, the threaded portion 14 is screwed onto the screw 16 and then inserted.
上記構成の如く、本考案の於いては定芯桿１３
の摺動し得る長孔１５を設け、一方に枢着用軸孔
１０を設けた自在枠９において、その軸孔１０側
と反対側の内面に、長孔１５より稍広径にして定
芯桿のねじ部１４に螺合し得るねじ１６を設けて
なるから、自在枠９に定芯桿のねじ部１４を挿通
するには必ずねじ１６と螺合することが必要であ
るから、一度挿着すると、自在枠９がボルト６の
緩み等により上下方向にガタを生じても抜け落ち
る惧れが全くない。 As in the above configuration, in the present invention, the fixed core rod 13
In the flexible frame 9, which is provided with an elongated hole 15 that can slide, and a shaft hole 10 for pivoting on one side, a fixed center rod with a slightly wider diameter than the elongated hole 15 is provided on the inner surface on the opposite side to the shaft hole 10 side. Since it is provided with a screw 16 that can be screwed into the threaded part 14 of the fixed center rod, it is necessary to screw the threaded part 14 of the fixed center rod into the flexible frame 9. Then, even if the flexible frame 9 becomes loose in the vertical direction due to loosening of the bolts 6, there is no risk of it falling off.
従つて、測量上定芯桿の抜け落ちることによる
不便を除去できる。又、定芯桿１３を新しいもの
と取替える必要の生じたような場合でもねじ部１
４とねじ１６を螺合することにより簡単に取替え
できる利点がある。 Therefore, the inconvenience caused by the measuring rod falling off during surveying can be eliminated. In addition, even if it becomes necessary to replace the centering rod 13 with a new one, the threaded portion 1
4 and the screw 16 have the advantage that they can be easily replaced.
図面は本考案の実施例を示すものであつて、第
１図は脚頭の縦断面図、第２図は裏面図、第３図
は自在枠の平面図、第４図は自在枠のねじに定芯
桿ねじ部を螺合する前の状態の一部断面図を示
す。
１……脚頭、６……ボルト、７……円孔、９…
…自在枠、１０……軸孔、１１……ピン、１２…
…支持部、１３……定芯桿、１３′……筒部、１
４……定芯桿ねじ部、１５……長孔、１６……ね
じ。
The drawings show an embodiment of the present invention, in which Fig. 1 is a longitudinal cross-sectional view of the leg head, Fig. 2 is a back view, Fig. 3 is a plan view of the flexible frame, and Fig. 4 is a screw of the flexible frame. 2 shows a partial cross-sectional view of the state before the fixed center rod screw part is screwed together. 1... Leg head, 6... Bolt, 7... Round hole, 9...
...Flexible frame, 10...Shaft hole, 11...Pin, 12...
...Support part, 13...Constant center rod, 13'...Cylinder part, 1
4... Fixed center rod screw part, 15... Long hole, 16... Screw.
Claims (1)
に枢着用軸孔１０を設けた自在枠９において、そ
の軸孔１０側と反対側の内面に、長孔１５より稍
広径にして定芯桿のねじ部１４に螺合し得るねじ
１６を設けてなる三脚用定心桿の自在枠。 In the flexible frame 9, which is provided with an elongated hole 15 on which the centering rod 13 can slide, and which is provided with a shaft hole 10 for pivoting on one side, the inner surface on the opposite side to the shaft hole 10 side has a diameter slightly wider than that of the elongated hole 15. A flexible frame for a centering rod for a tripod, which is provided with a screw 16 that can be screwed into a threaded part 14 of the centering rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4908084U JPS60161792U (en) | 1984-04-05 | 1984-04-05 | Flexible frame for fixed center rod for tripod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4908084U JPS60161792U (en) | 1984-04-05 | 1984-04-05 | Flexible frame for fixed center rod for tripod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60161792U JPS60161792U (en) | 1985-10-26 |
| JPH0326409Y2 true JPH0326409Y2 (en) | 1991-06-07 |
Family
ID=30565937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4908084U Granted JPS60161792U (en) | 1984-04-05 | 1984-04-05 | Flexible frame for fixed center rod for tripod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60161792U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS503743U (en) * | 1973-05-16 | 1975-01-16 |
-
1984
- 1984-04-05 JP JP4908084U patent/JPS60161792U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS503743U (en) * | 1973-05-16 | 1975-01-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60161792U (en) | 1985-10-26 |
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