JPH09275514A - Rotary position lock device for rotating body - Google Patents
Rotary position lock device for rotating bodyInfo
- Publication number
- JPH09275514A JPH09275514A JP8085439A JP8543996A JPH09275514A JP H09275514 A JPH09275514 A JP H09275514A JP 8085439 A JP8085439 A JP 8085439A JP 8543996 A JP8543996 A JP 8543996A JP H09275514 A JPH09275514 A JP H09275514A
- Authority
- JP
- Japan
- Prior art keywords
- teeth
- rotating body
- tooth
- rotating
- cylindrical surface
- 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.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M2200/00—Details of stands or supports
- F16M2200/02—Locking means
- F16M2200/021—Locking means for rotational movement
- F16M2200/024—Locking means for rotational movement by positive interaction, e.g. male-female connections
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、回転体の回転位置
ロック装置に関し、特に回転体を任意の回転位置でぶれ
ることなく固定する技術に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary position lock device for a rotary body, and more particularly to a technique for fixing the rotary body at an arbitrary rotary position without shaking.
【０００２】[0002]
【従来の技術】例えば、図８に示すように、テレビ用の
カメラ本体11には、カメラマンが覗くビューファインダ
12が備えられている。このカメラ本体11は、例えば三脚
13に支持されている。そして、撮影するときは、カメラ
レンズ14が被写体に向くように、カメラ本体11を回転さ
せるが、カメラ本体11をどのように回転させても、カメ
ラマンが位置を変えないでビューファインダ12を覗ける
ように、カメラ本体11とビューファインダ12との間に回
転支持台１が備えられている。2. Description of the Related Art For example, as shown in FIG. 8, a camera body 11 for a television has a viewfinder which a cameraman can see.
Twelve are equipped. This camera body 11 is, for example, a tripod
Backed by 13. Then, when shooting, the camera body 11 is rotated so that the camera lens 14 faces the subject, but no matter how the camera body 11 is rotated, the cameraman can look into the viewfinder 12 without changing the position. In addition, the rotary support 1 is provided between the camera body 11 and the viewfinder 12.
【０００３】ところで、この回転支持台１には、例え
ば、風等でビューファインダ12の回転位置が変わらない
ように、該回転支持台１の回り止めをするようなロック
装置が必要となってくる。かかる回転体の回転位置ロッ
ク装置としては、従来より、歯車の歯を噛み合わせてロ
ックする構成のものがある。By the way, the rotation support base 1 needs a lock device for preventing the rotation of the rotation support base 1 so that the rotation position of the viewfinder 12 is not changed by wind or the like. . As a rotation position locking device for such a rotating body, there has been a device that locks the gear teeth by meshing them.
【０００４】また、このような歯車の噛み合わせだけに
よる方法を使用しないのであれば、例えば、実開平４−
１２００３４号公報に開示されているように、２つの歯
車の歯合部を係止棒等で両脇から挟み込んで歯車を回転
不能状態にする方法もある。Further, if such a method based only on the meshing of gears is not used, for example, an actual flat blade 4-
As disclosed in Japanese Patent No. 120034, there is also a method in which the gears cannot be rotated by sandwiching the meshing portions of the two gears from both sides with locking rods or the like.
【０００５】[0005]
【発明が解決しようとする課題】しかし、いずれにして
も従来の回転体の回転位置ロック装置では、既存のイン
ボリュート歯車やサイクロイド歯車のような標準歯形歯
車を使用しているため、噛み合う歯数が少なく、噛み合
わない分だけロックする力が損なわれる。また、歯車
は、本来、回転により力を伝達するためのものであるた
め、回転しやすいようにバックラッシュを設けてあり、
ガタが生ずる。したがって、従来の歯車の噛み合わせ等
による回転体の回転位置ロック装置では、前記回転支持
台１のロックには不向きである。However, in any case, since the conventional rotary position locking device for the rotating body uses the standard tooth profile gear such as the existing involute gear and cycloid gear, the number of meshing teeth is not enough. There are few, and the force to lock is impaired by the amount that they do not mesh. In addition, since the gear is originally intended to transmit force by rotation, a backlash is provided to facilitate rotation,
There is backlash. Therefore, the conventional rotary position locking device for rotating the body by meshing gears is not suitable for locking the rotation support base 1.
【０００６】本発明はこのような従来の課題に鑑みてな
されたもので、回転体をロックするときに、ガタが少な
く、全ての歯が有効に噛み合うようにしてロックする力
を強くすることができる回転体の回転位置ロック装置を
提供することを目的とする。The present invention has been made in view of such conventional problems. When the rotating body is locked, there is little backlash and it is possible to strengthen the locking force by effectively engaging all the teeth. An object of the present invention is to provide a rotation position locking device for a rotating body that can be used.
【０００７】[0007]
【課題を解決するための手段】このため、請求項１の発
明にかかる装置は、回転体の回転軸を中心とする回転円
筒面に、前記回転体の回転軸と平行な平面を有する２つ
の歯面が回転軸から離れる方向に相互に接近して回転軸
直角方向断面が山形となるような同一形状の歯を、円筒
面の周方向等間隔おきに歯切りする一方、前記回転体の
歯が形成された回転円筒面に向かって進退自由に取り付
けられ、該回転円筒面と対面する円弧面を有し、該円弧
面に、回転体の円筒面の歯の平面歯面で当接する平面歯
面を有し、かつ、前記回転体の円筒面の各歯と噛み合う
歯が歯切りされた係止部材を設け、前記係止部材の歯を
前記回転円筒面の歯と噛み合わせて、回転体を任意の回
転位置で回り止めするようにした。For this reason, the device according to the invention of claim 1 has two planes having a plane parallel to the rotation axis of the rotating body on a rotating cylindrical surface centering on the rotation axis of the rotating body. Teeth of the same shape whose tooth surfaces approach each other in the direction away from the rotation axis and have a mountain-shaped cross section in the direction perpendicular to the rotation axis are toothed at equal intervals in the circumferential direction of the cylindrical surface, while the teeth of the rotating body A flat tooth that is attached to the rotary cylindrical surface on which it is formed so as to freely move back and forth, has an arc surface facing the rotary cylindrical surface, and abuts on the arc surface with the plane tooth surface of the tooth of the cylindrical surface of the rotating body. A rotating member is provided which has a surface and which has a locking member in which teeth that mesh with each tooth of the cylindrical surface of the rotating body are cut, and the teeth of the locking member are meshed with the teeth of the rotating cylindrical surface. Was stopped at an arbitrary rotation position.
【０００８】かかる構成によれば、回転体の歯と係止部
材の歯とが平面で当接するので、両歯の間のガタがなく
なり、回転体を強くロックすることが可能となる。請求
項２の発明にかかる装置では、前記係止部材は、両端の
歯の内側の平面が進退方向と平行になるまで歯切りされ
ている。かかる構成によれば、歯切り範囲が最も大きく
なり、両歯数が有効に噛み合ってロックする力は最も強
くなる。しかも、係止部材は回転体の歯の方向にスムー
ズに進退する。According to this structure, since the teeth of the rotating body and the teeth of the locking member are in flat contact with each other, there is no play between the two teeth and the rotating body can be strongly locked. In the device according to the invention of claim 2, the locking member is tooth-cut until the inner planes of the teeth at both ends are parallel to the advancing / retreating direction. With such a configuration, the gear cutting range is maximized, and the force for effectively engaging and locking both teeth is the strongest. Moreover, the locking member smoothly moves back and forth in the direction of the teeth of the rotating body.
【０００９】請求項３の発明にかかる装置では、前記回
転体の歯は、円筒外周面に形成された外歯であり、係止
部材の歯は、該外歯と当接する内歯である。かかる構成
によれば、回転体の外周面で両歯が当接する。請求項４
の発明にかかる装置では、前記回転体の歯は、回転体の
円筒内周面に歯切りされた内歯であり、係止部材の歯
は、該回転体の円筒内で回転体の内歯と当接する外歯で
ある。In the apparatus according to the third aspect of the present invention, the teeth of the rotating body are the external teeth formed on the outer peripheral surface of the cylinder, and the teeth of the locking member are the internal teeth that come into contact with the external teeth. According to this structure, both teeth abut on the outer peripheral surface of the rotating body. Claim 4
In the device according to the invention, the teeth of the rotating body are internal teeth cut into the inner peripheral surface of the cylinder of the rotating body, and the teeth of the locking member are the internal teeth of the rotating body in the cylinder of the rotating body. Is an external tooth that abuts against.
【００１０】かかる構成によれば、回転体の内周面で両
歯が当接する。According to this structure, both teeth abut on the inner peripheral surface of the rotating body.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施の形態を図１
〜図８に基づいて説明する。本実施の形態を示す図１に
おいて、回転支持台１は、Ａ−Ａ’方向に自由に回転可
能な回転体であり、例えば、図８に示すようにテレビ用
のカメラ本体11とビューファインダ12との間に取り付け
られている。FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. In FIG. 1 showing the present embodiment, a rotation support base 1 is a rotating body that can freely rotate in the AA ′ direction. For example, as shown in FIG. 8, a camera body 11 for a television and a viewfinder 12 are provided. It is installed between and.
【００１２】この回転支持台１の全外円周面には、外歯
２が歯切りされている。この外歯２は、回転支持台１の
回転軸直角方向の部分平面図である図２に示すように頂
部と谷部とを滑らかにした３角形をしており、また、図
３に示すように、その２つの歯面ａ，ａ’は平面となっ
ている。ストッパ３は、回転支持台１をロックするよう
に係止する係止部材であり、カメラ本体11側に取り付け
られている。ストッパ３には、回転支持台１の外歯２と
平面で当接するように、平面歯面を有した内歯４が歯切
りされている。また、ストッパ３は、図１中、Ｂ−Ｂ’
方向に進退自由であり、回転支持台１を回転させるとき
は、ストッパ３をＢ方向に後退させておき、ロックする
ときは、ストッパ３をＢ’方向にスライドさせて進出さ
せ、内歯４と外歯２とを噛み合わせる。尚、ストッパ３
を進出させるには、手動で行ってもよいが、バネ等の弾
性体でＢ’方向へ付勢するようにしてもよい。External teeth 2 are cut on the entire outer circumferential surface of the rotary support 1. As shown in FIG. 2, which is a partial plan view of the rotary support 1 in the direction perpendicular to the rotation axis, the external teeth 2 have a triangular shape with smooth tops and valleys, and as shown in FIG. In addition, the two tooth surfaces a and a ′ are flat surfaces. The stopper 3 is a locking member that locks the rotation support base 1 so as to lock it, and is attached to the camera body 11 side. Inner teeth 4 having a flat tooth surface are cut into the stopper 3 so as to come into contact with the outer teeth 2 of the rotary support base 1 in a plane. The stopper 3 is BB ′ in FIG.
The stopper 3 is retracted in the B direction when the rotation support base 1 is rotated, and the stopper 3 is slid in the B'direction and advanced to lock the rotation support base 1 in order to rotate the rotation support base 1. Engage with the external teeth 2. Incidentally, the stopper 3
In order to advance the position A, it may be manually performed, but it may be biased in the B ′ direction by an elastic body such as a spring.
【００１３】歯切りするには、例えば放電加工のよう
に、精度の高い加工方法を用いる。また、高トルク、重
荷重等に耐え得るようにするには、外歯２及び内歯４の
材料、歯の厚さについて考慮する必要がある。強度の強
い材料を使って歯厚を厚くすれば、ロックする力も強く
なり使用範囲も拡大する。次に内歯４の歯切り範囲につ
いて説明する。尚、図４、図５、図６は、夫々、図１の
説明図、Ｃ部拡大図、外歯２の部分拡大図であり、これ
らの図も含めて説明する。For gear cutting, a highly accurate machining method such as electric discharge machining is used. Further, in order to withstand high torque, heavy load, etc., it is necessary to consider the materials of the outer teeth 2 and the inner teeth 4 and the thickness of the teeth. If the tooth thickness is made thicker using a strong material, the locking force will be stronger and the range of use will be expanded. Next, the gear cutting range of the internal teeth 4 will be described. 4, 5, and 6 are an explanatory view of FIG. 1, an enlarged view of a C portion, and a partially enlarged view of the outer teeth 2, respectively, which will also be described.
【００１４】この歯切りする範囲を、内歯４の中心点
（外歯２と嵌合したとき、回転支持台１の軸と一致す
る）に対する角度θD で示す。角度θD は、ストッパ３
の内歯４の最も外側の歯の歯面Ｅ及び歯面Ｅ’が、スト
ッパ３のスライド方向（Ｂ−Ｂ’）と平行となるとき、
最も大きくなる。従って、このとき、式（１）が成り立
つ（図４参照）。This gear cutting range is indicated by an angle θ D with respect to the center point of the inner tooth 4 (which coincides with the axis of the rotary support 1 when fitted with the outer tooth 2). Angle θ D is for stopper 3
When the tooth surface E and the tooth surface E ′ of the outermost tooth of the internal tooth 4 are parallel to the sliding direction (BB ′) of the stopper 3,
Will be the largest. Therefore, at this time, the expression (1) is established (see FIG. 4).
【００１５】 θA ×Ｘ−θA ≦θC ・・・・・・・・・・・・・・・・・（１） 但し、θA ：外歯２の回転支持台１の中心軸に対する１
つの歯の角度（＝内歯４の中心点に対する１つの歯の角
度） θC ：内歯４の谷に対する歯面の角度（＝外歯２の山に
対する歯面の角度） Ｘ ：内歯４の歯数 また、次式（２）も成立する（図５参照）。Θ A × X−θ A ≦ θ C (1) where θ A is the center axis of the rotation support base 1 of the outer teeth 2. 1
Angle of one tooth (= angle of one tooth with respect to center point of inner tooth 4) θ C : Angle of tooth surface with respect to valley of inner tooth 4 (= angle of tooth surface with respect to crest of outer tooth 2) X: Inner tooth 4 Further, the following equation (2) is also established (see FIG. 5).
【００１６】 θD ／２＝θB −θC ／２ ・・・・・・・・・・・・・・・（２） 但し、θB ：内歯４の山に対する歯面の角度（＝外歯２
の谷に対する歯面の角度） さらに、次式（３）が成立する（図６参照）。 ３６０＝θA ＋θC ＋（１８０−θB ／２）×２ ・・・・・（３） この式（３）を整理すると、次式（４）となる。Θ D / 2 = θ B −θ C / 2 (2) where θ B is the angle of the tooth surface with respect to the crest of the internal tooth 4 (= External teeth 2
The angle of the tooth surface with respect to the trough) is further satisfied by the following expression (3) (see FIG. 6). 360 = [theta] A + [theta] C + (180- [theta] B / 2) * 2 (3) This equation (3) is rearranged into the following equation (4).
【００１７】 θC ＝θB −θA ・・・・・・・・・・・・・・・・・・・（４） また、この式（４）を式（２）に代入すると、次式
（５）が成立する。 θD ＝θA ＋θB ・・・・・・・・・・・・・・・・・・・（５） 即ち、角度θD が外歯２の回転支持台１の中心軸に対す
る１つ歯の角度θA と内歯４の山に対する歯面の角度θ
B との和となるようにすれば、歯切り範囲が最も大きく
なる。Θ C = θ B −θ A (4) Further, substituting the equation (4) into the equation (2), the following equation is obtained. Formula (5) is materialized. θ D = θ A + θ B (5) That is, the angle θ D is one tooth with respect to the central axis of the rotary support base 1 of the outer tooth 2. Angle θ A of the tooth surface with respect to the crest of the internal tooth 4 θ
If it is the sum of B and B , the gear cutting range will be the largest.
【００１８】次に、作用について説明する。例えば、カ
メラレンズ14を被写体に向けるべく、カメラ本体11の方
向を変えるときは、ストッパ３を図１のＢ方向へスライ
ドして回転支持台１から後退させる。これにより、回転
支持台１は、Ａ−Ａ’方向に自由に回転し、ビューファ
インダ12の方向を自由に変えることができる。Next, the operation will be described. For example, when changing the direction of the camera body 11 so that the camera lens 14 faces the subject, the stopper 3 is slid in the direction B of FIG. As a result, the rotary support 1 can freely rotate in the AA 'direction, and the direction of the viewfinder 12 can be freely changed.
【００１９】カメラ本体11及びビューファインダ12の方
向を決めたときは、ストッパ３を、Ｂ’方向へ進出させ
る。ストッパ３を進出させたとき、内歯４の最も外側の
歯の歯面Ｅ，Ｅ’が、夫々、ストッパ３のスライド方向
Ｂ−Ｂ’と平行になっているので、回転支持台１の外歯
２とストッパ３の内歯４とは容易に噛み合う。また、外
歯２、内歯４にはバックラッシュもなく、両歯の歯面が
平面歯面となっているので、外歯２と内歯４とが噛み合
ったときは、両歯は平面で当接する。これにより回転支
持台１はしっかりとロックされ、風が吹いてもビューフ
ァインダ12はぶれることがなく、カメラマンは風等の影
響を心配せずにビューファインダ12を覗くことができ
る。When the directions of the camera body 11 and the viewfinder 12 are determined, the stopper 3 is advanced in the B'direction. When the stopper 3 is advanced, the tooth surfaces E and E ′ of the outermost teeth of the inner teeth 4 are parallel to the sliding direction BB ′ of the stopper 3, so The teeth 2 and the inner teeth 4 of the stopper 3 easily mesh with each other. Further, since the outer teeth 2 and the inner teeth 4 have no backlash and the tooth surfaces of both teeth are flat tooth surfaces, when the outer teeth 2 and the inner teeth 4 mesh with each other, both teeth are flat. Abut. As a result, the rotation support base 1 is firmly locked, the viewfinder 12 does not shake even when the wind blows, and the cameraman can look into the viewfinder 12 without worrying about the influence of the wind or the like.
【００２０】かかる構成によれば、回転支持台１の外歯
２とストッパ３には、バックラッシュもなく、歯面が平
面歯面となって両歯が平面で当接するので、外歯２と内
歯４の間のガタをなくすことができ、表面積が大きくな
り、ロックする力が強くなる。また、ストッパ３の内歯
４を歯切りする範囲を式（５）に基づいて設定すること
により、噛み合わせたときは、全部の歯が有効に噛み合
うようになり、回転支持台１のロックする力が最も強く
なる。According to this structure, the outer teeth 2 and the stopper 3 of the rotary support 1 have no backlash and the tooth surfaces are flat tooth surfaces, and both teeth are in flat contact with each other. The play between the inner teeth 4 can be eliminated, the surface area is increased, and the locking force is increased. Further, by setting the range in which the inner teeth 4 of the stopper 3 are cut based on the equation (5), all the teeth are effectively meshed when meshed, and the rotation support base 1 is locked. Power becomes the strongest.
【００２１】尚、回転支持台１の外歯２を全円周に歯切
りするようにしたが、これに限らず、歯切りする範囲を
所定範囲だけ、即ち、カメラ本体11を回転させてもビュ
ーファイダ12をカメラマンに向けることができるだけの
範囲にしてもよい。また、本実施の形態では、ストッパ
３を１つだけ設けたが、バランスがとれるように、回転
支持台１の回りに複数設けてもよい。Although the outer teeth 2 of the rotation support base 1 are gear-cut on the entire circumference, the invention is not limited to this, and the gear-cutting range is a predetermined range, that is, even if the camera body 11 is rotated. The viewfinder 12 may be within a range that can be aimed at the photographer. Further, in the present embodiment, only one stopper 3 is provided, but a plurality of stoppers 3 may be provided around the rotation support base 1 so as to be balanced.
【００２２】また、回転支持台１の外歯２とストッパ３
の内歯４とを、回転支持台１の外周で当接させるように
したが、これに限らず、例えば、図７に示すように、回
転支持台１を円筒状に形成し、その内周面に歯切りを
し、ストッパ３の歯を、回転支持台１の内周面で当接さ
せるようにすることも可能である。尚、この図７の例で
は、ストッパ３を２つ備えているが、このように２つの
ストッパ３を備え、これらを連動して動かす場合には、
双方のストッパ３の歯をうまく噛み合わせることができ
るように歯数を考慮する必要がある。Further, the outer teeth 2 and the stopper 3 of the rotary support base 1
The inner teeth 4 of the rotary support base 1 are brought into contact with the outer periphery of the rotary support base 1, but the present invention is not limited to this. For example, as shown in FIG. It is also possible to cut the surface and bring the teeth of the stopper 3 into contact with the inner peripheral surface of the rotary support 1. In addition, in the example of FIG. 7, two stoppers 3 are provided. However, when two stoppers 3 are provided in this way and they are moved in conjunction with each other,
It is necessary to consider the number of teeth so that the teeth of both stoppers 3 can be meshed well.
【００２３】さらに、本実施の形態では、回転体の回転
位置ロック装置をテレビカメラの回転支持台に適用した
が、これに限らず、回転体であれば、どのようなものに
も適用することができる。このように、本実施の形態に
限定されるものではなく、本発明の装置を種々のものに
適用することができる。Further, in the present embodiment, the rotary position lock device for the rotary body is applied to the rotary support base of the television camera, but the present invention is not limited to this, and may be applied to any rotary body. You can As described above, the present invention is not limited to this embodiment, and the device of the present invention can be applied to various things.
【００２４】[0024]
【発明の効果】以上説明したように、請求項１の発明に
かかる装置によれば、両歯間のガタがなくなり、表面積
が拡大するので、回転体を強くロックすることができ
る。請求項２の発明にかかる装置によれば、歯切り範囲
が最も大きくなり、両歯数が有効に噛み合うので、ロッ
クする力を最も強くすることができ、しかも、係止部材
を回転体の歯の方向にスムーズに進退させることができ
る。As described above, according to the device of the first aspect of the present invention, the backlash between both teeth is eliminated and the surface area is enlarged, so that the rotating body can be strongly locked. According to the apparatus of the second aspect of the present invention, the gear cutting range is maximized, and both teeth are effectively meshed with each other, so that the locking force can be maximized, and the locking member is the tooth of the rotating body. You can smoothly move back and forth in the direction of.
【００２５】請求項３の発明にかかる装置によれば、回
転体の外周面で回転体をロックすることができる。請求
項４の発明にかかる装置によれば、回転体の内周面で回
転体をロックすることができる。According to the apparatus of the third aspect, the rotating body can be locked by the outer peripheral surface of the rotating body. According to the device of the fourth aspect of the present invention, the rotating body can be locked by the inner peripheral surface of the rotating body.
【図１】本発明の実施の形態を示す平面図。FIG. 1 is a plan view showing an embodiment of the present invention.
【図２】図１の回転支持台の外歯の部分平面図。FIG. 2 is a partial plan view of external teeth of the rotation support base of FIG.
【図３】同上斜視図。FIG. 3 is a perspective view of the same.
【図４】図１の説明図。FIG. 4 is an explanatory diagram of FIG. 1.
【図５】図１のＣ部拡大図。FIG. 5 is an enlarged view of part C in FIG.
【図６】図１の外歯の部分拡大図。FIG. 6 is a partially enlarged view of the external teeth of FIG.
【図７】本発明の別の実施の形態を示す平面図。FIG. 7 is a plan view showing another embodiment of the present invention.
【図８】テレビカメラに応用した回転体の回転位置ロッ
ク装置の説明図。FIG. 8 is an explanatory diagram of a rotation position lock device for a rotating body applied to a television camera.
１ 回転支持台 ２ 外歯 ３ ストッパ ４ 内歯 1 rotary support 2 external teeth 3 stopper 4 internal teeth
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高谷 富美雄 東京都大田区仲六郷４−12−10 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Fumio Takaya 4-12-10 Nakarokugo, Ota-ku, Tokyo
Claims (4)
に、前記回転体の回転軸と平行な平面を有する２つの歯
面が回転軸から離れる方向に相互に接近して回転軸直角
方向断面が山形となるような同一形状の歯を、円筒面の
周方向等間隔おきに歯切りする一方、 前記回転体の歯が形成された回転円筒面に向かって進退
自由に取り付けられ、該回転円筒面と対面する円弧面を
有し、該円弧面に、回転体の円筒面の歯の平面歯面で当
接する平面歯面を有し、かつ、前記回転体の円筒面の各
歯と噛み合う歯が歯切りされた係止部材を設け、 前記係止部材の歯を前記回転円筒面の歯と噛み合わせ
て、回転体を任意の回転位置で回り止めすることを特徴
とする回転体の回転位置ロック装置。1. A rotating cylindrical surface centering on the rotating shaft of a rotating body, two tooth flanks having a plane parallel to the rotating shaft of the rotating body approach each other in a direction away from the rotating shaft and are perpendicular to the rotating shaft. Teeth of the same shape such that the direction cross section becomes a chevron, while cutting the teeth at equal intervals in the circumferential direction of the cylindrical surface, while being attached so as to move forward and backward toward the rotating cylindrical surface on which the teeth of the rotating body are formed, And an arcuate surface facing the rotating cylindrical surface, the arcuate surface having a flat tooth surface contacting with the flat tooth surface of the tooth of the cylindrical surface of the rotating body, and each tooth of the cylindrical surface of the rotating body. Providing a locking member in which meshing teeth are cut off, the teeth of the locking member are meshed with the teeth of the rotating cylindrical surface, and the rotating body is prevented from rotating at an arbitrary rotation position. Rotational position locking device.
進退方向と平行になるまで歯切りされていることを特徴
とする請求項１に記載の回転体の回転位置ロック装置。2. The rotary position locking device for a rotating body according to claim 1, wherein the locking member is tooth-cut until the inner planes of the teeth at both ends are parallel to the advancing / retracting direction.
た外歯であり、係止部材の歯は、該外歯と当接する内歯
であることを特徴とする請求項１又は請求項２に記載の
回転体の回転位置ロック装置。3. The tooth of the rotating body is an external tooth formed on the outer peripheral surface of the cylinder, and the tooth of the locking member is an internal tooth that abuts against the external tooth. The rotation position lock device for the rotating body according to claim 2.
歯切りされた内歯であり、係止部材の歯は、該回転体の
円筒内で回転体の内歯と当接する外歯であることを特徴
とする請求項１〜請求項３のいずれか１つに記載の回転
体の回転位置ロック装置。4. The teeth of the rotating body are internal teeth cut on the inner peripheral surface of the cylinder of the rotating body, and the teeth of the locking member contact the internal teeth of the rotating body in the cylinder of the rotating body. The rotating position lock device for a rotating body according to any one of claims 1 to 3, wherein the rotating teeth are external teeth in contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08543996A JP3351676B2 (en) | 1996-04-08 | 1996-04-08 | Rotational position lock device for rotating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08543996A JP3351676B2 (en) | 1996-04-08 | 1996-04-08 | Rotational position lock device for rotating body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09275514A true JPH09275514A (en) | 1997-10-21 |
| JP3351676B2 JP3351676B2 (en) | 2002-12-03 |
Family
ID=13858903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08543996A Expired - Lifetime JP3351676B2 (en) | 1996-04-08 | 1996-04-08 | Rotational position lock device for rotating body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3351676B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995425A (en) * | 2013-12-03 | 2014-08-20 | 芜湖市安曼特微显示科技有限公司 | Lifting control device of projector |
| CN106938464A (en) * | 2017-04-06 | 2017-07-11 | 胡绪健 | A kind of navigating robot based on signal transacting |
| CN109184787A (en) * | 2018-11-15 | 2019-01-11 | 河南安诺尼机械设备有限公司 | tunnel system, bracket |
| CN109281709A (en) * | 2018-11-15 | 2019-01-29 | 河南安诺尼机械设备有限公司 | Bracket and the tunnel system for using the bracket |
| CN110630881A (en) * | 2019-10-31 | 2019-12-31 | 芜湖利远电子技术有限公司 | Anti-theft intelligent monitoring camera device |
| CN114110388A (en) * | 2021-11-24 | 2022-03-01 | 武汉中海庭数据技术有限公司 | Angle-adjustable vehicle-mounted camera mounting structure with self-locking function |
-
1996
- 1996-04-08 JP JP08543996A patent/JP3351676B2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995425A (en) * | 2013-12-03 | 2014-08-20 | 芜湖市安曼特微显示科技有限公司 | Lifting control device of projector |
| CN103995425B (en) * | 2013-12-03 | 2016-01-06 | 芜湖市安曼特微显示科技有限公司 | A kind of projector apparatus for controlling of lifting |
| CN106938464A (en) * | 2017-04-06 | 2017-07-11 | 胡绪健 | A kind of navigating robot based on signal transacting |
| CN109184787A (en) * | 2018-11-15 | 2019-01-11 | 河南安诺尼机械设备有限公司 | tunnel system, bracket |
| CN109281709A (en) * | 2018-11-15 | 2019-01-29 | 河南安诺尼机械设备有限公司 | Bracket and the tunnel system for using the bracket |
| CN110630881A (en) * | 2019-10-31 | 2019-12-31 | 芜湖利远电子技术有限公司 | Anti-theft intelligent monitoring camera device |
| CN114110388A (en) * | 2021-11-24 | 2022-03-01 | 武汉中海庭数据技术有限公司 | Angle-adjustable vehicle-mounted camera mounting structure with self-locking function |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3351676B2 (en) | 2002-12-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20050160856A1 (en) | Planetary differential screw type rotary/linear motion converter | |
| KR0157217B1 (en) | Planetary gear speed changer | |
| CA2062080C (en) | Wave gear drive | |
| JPS63115943A (en) | Flexiblly meshing type gear device | |
| JPH09275514A (en) | Rotary position lock device for rotating body | |
| JPH08189548A (en) | Inscribed meshing type planetary gear device | |
| JP2001221296A (en) | Gear stopper mechanism | |
| JP3436883B2 (en) | Rotation direction switching mechanism | |
| US6212967B1 (en) | Variable gear assembly and method | |
| EP0161072B1 (en) | Mechanical reduction gear system | |
| JP2871243B2 (en) | Scissor gears for internal combustion engines | |
| JPS62224755A (en) | Transmission for control | |
| US4273002A (en) | Face gear assembly | |
| CA2111366A1 (en) | Cam tooth starter pinion | |
| JP2003083316A (en) | Nut | |
| JP2556435B2 (en) | wrench | |
| JP3007739B2 (en) | Rotary feeding mechanism | |
| JP2957241B2 (en) | Motion switching mechanism | |
| JPH0589973U (en) | One-way clutch unit and torque limiter unit | |
| JPH10161002A (en) | Helicoid structure for driving lens barrel of varifocal device | |
| JPS6139537B2 (en) | ||
| KR930010444B1 (en) | Planet gear device | |
| JP4026914B2 (en) | Lens barrel structure | |
| JP7182309B2 (en) | Decelerator | |
| TWI653926B (en) | A Dual Shaft Alternatively-Flipped Structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080920 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110920 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110920 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120920 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120920 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130920 Year of fee payment: 11 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |