JPS62284632A - Drive mechanism in dental x-ray photographic apparatus - Google Patents

Drive mechanism in dental x-ray photographic apparatus

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Publication number
JPS62284632A
JPS62284632A JP61124657A JP12465786A JPS62284632A JP S62284632 A JPS62284632 A JP S62284632A JP 61124657 A JP61124657 A JP 61124657A JP 12465786 A JP12465786 A JP 12465786A JP S62284632 A JPS62284632 A JP S62284632A
Authority
JP
Japan
Prior art keywords
dental
drive mechanism
link rod
plate
tip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP61124657A
Other languages
Japanese (ja)
Inventor
山羽 裕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yoshida Dental Mfg Co Ltd
Original Assignee
Yoshida Dental Mfg Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yoshida Dental Mfg Co Ltd filed Critical Yoshida Dental Mfg Co Ltd
Priority to JP61124657A priority Critical patent/JPS62284632A/en
Publication of JPS62284632A publication Critical patent/JPS62284632A/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 3、発明の詳細な説明 産業上の利用分野 本願は、歯列弓の断層写真を撮影するための歯科用XB
撮影装置における駆動装置に関する。
Detailed Description of the Invention 3. Detailed Description of the Invention Industrial Application Field This application describes a dental XB for taking tomographic photographs of dental arches.
The present invention relates to a drive device in a photographing device.

従来の技術及びその問題点 従来、この種の装置として、放物線乃至楕円形に近位す
る歯列弓を、両側の臼歯部との3つの領域に区分して、
それらの領域を、夫−々円弧状に仮想して、3つの円弧
の連続から成る歯列弓に近似する楕円軌道を形成し、こ
の軌道に沿って両端部にXB管とXBフィルムとを対設
した水平回動アームを回動することにより、歯列弓の断
層写真を逼影する一般にオルソパントモグラフと称する
XB措影装置は例えば実公昭58−39694号公報、
実公昭57−57692号公報等により公知である。
BACKGROUND TECHNOLOGY AND PROBLEMS Conventionally, this type of device divides the proximal dental arch in a parabolic or elliptical shape into three regions, including molars on both sides.
Each of these areas is imagined as an arc to form an elliptical trajectory approximating a dental arch consisting of a series of three arcs, and an XB tube and an XB film are paired at both ends along this trajectory. An XB imaging device generally referred to as an orthopantomograph, which images a tomogram of a dental arch by rotating a horizontal rotating arm provided therein, is disclosed in, for example, Japanese Utility Model Publication No. 58-39694;
This is known from Japanese Utility Model Publication No. 57-57692.

ところで、上記したXB撮影装置によれば、いづれも歯
列弓に近似した楕円軌跡を得るための駆動機構が複雑で
あると共に、それらを構成する部品数も多く、かつ、そ
れら部品の精度も高いものが要求され、従って高価とな
るなどの欠陥があった。
By the way, according to the above-mentioned XB imaging devices, the drive mechanism for obtaining an elliptical locus that approximates the dental arch is complicated, and the number of parts that constitute them is large, and the precision of these parts is also high. It had some flaws, such as being demanding and therefore expensive.

発明の目的、実施例及び作用 そこで本願は、直線方向に往復移動する回転板上の任意
の点が描く楕円軌跡を利用することにより、上記した不
都合を解消したもので、以下図面と共に、本願実施例を
詳述する。
OBJECTS, EMBODIMENTS, AND OPERATIONS OF THE INVENTION Therefore, the present application solves the above-mentioned inconvenience by utilizing an elliptical locus drawn by an arbitrary point on a rotary plate that reciprocates in a linear direction. Detailing an example.

(1)は上面に固定基板(2)をゲタ片(2)“を介し
て固設したレントゲン装置本体の上部を成す上部枠の一
部を示し、前記基板(2)の上面左右位置に、前後方向
に延びる一対の直線レール(3) 、 (3)を平行に
敷設してあり、かつ、前記基板(2)の後方隅部には逆
り字状を呈し、その上部水平横片(4)aの先端部が、
前記レール(3) 、 (3)管の中間位置まで延びる
取付杆(4)が立設してあり、さらに前記レール(3)
 、 (3)間の中央部には、前後方向に延びる挿入孔
(5)が開設しである。(6)は方形状の台板(7)の
下面4隅部に、前記一対のレールに係合する車輪(8)
 、 (8) 、 (8) 、 (8)を配設して、前
後方向に移動可能な移動台であって、該移動台(6)の
中央部に、前記基板(2)に開設した挿通孔(5)と対
向して垂直方向に延びる軸受筒体(10)が一体に固設
してあり、この軸受筒体(10)に、前記基板(2)の
挿通孔(5)を通って下方に突出し、その下端部に、X
B管と断層用X′yAフィルムとを両端部に対設した水
平回動アーム(1))を取付ける回動軸(12)がベア
リング(13)を介して回転可能に軸承してあり、この
回転軸(12)は、前記軸受筒体(10)より上方にも
延びており、その上端に、大径のベルト車から成る回転
板(14)が、キー(15)を介して一体に取付けられ
、かつ、その上部に、止ナッ)(9)’が蝶着されてい
る。(16)は前記移動台(6)の後部中央位置に、ブ
ラケッI−(17)を介して装着された駆動モータであ
って、その出力軸(18)が、前記回転軸(12)と平
行して上方に延び、その出力軸(18)に、前記回転板
(14)と■ベルト(20)を介して伝動連結された小
径のプーリ(19)が軸着されている。なお本例では、
プラケット(17)の上面に水平移動可能に設けられた
調整板(17) ’ に駆動モータ(16)を装置して
あり、この調整板(17) ’ と、ブラケット(17
)との間に、調整板(17) ’ を前後方向に移動し
て■ベルト(20)の張力を調節する調整ネジ(21)
aと、調整板(17) ’ を固定する止ネジ(21)
bとが設けである。(22)は後端が前記回転板(14
)の回転中心Oの後方位置で、かつ、前記取付杆(4)
の水平横片(4)a先端部に、水平回転自在に枢着(4
)゛され、かつ、その先端が、前記回転板(14)の編
心位置に立設した枢止杆(23)に回動自在に枢着され
た水平のリンク杆である。
(1) shows a part of the upper frame forming the upper part of the main body of the X-ray apparatus, on which the fixed substrate (2) is fixed via the getter piece (2). A pair of straight rails (3), (3) extending in the front-rear direction are laid in parallel, and the rear corner of the board (2) has an inverted shape, and the upper horizontal horizontal piece (4) ) The tip of a is
A mounting rod (4) extending to an intermediate position between the rails (3) and (3) pipes is erected, and the rails (3)
, (3) is provided with an insertion hole (5) extending in the front-rear direction. (6) Wheels (8) that engage with the pair of rails are attached to the four corners of the lower surface of the rectangular base plate (7).
, (8) , (8) , (8) is disposed and is movable in the front and back direction, the movable base (6) having an insertion hole provided in the substrate (2) in the center thereof. A bearing cylinder (10) facing the hole (5) and extending vertically is integrally fixed, and a bearing cylinder (10) is inserted through the insertion hole (5) of the base plate (2). It protrudes downward and has an X at its lower end.
A rotating shaft (12) to which a horizontal rotating arm (1) with a B tube and a tomography X'yA film placed opposite each other at both ends is attached is rotatably supported via a bearing (13). The rotating shaft (12) also extends above the bearing cylinder body (10), and a rotating plate (14) consisting of a large diameter belt pulley is integrally attached to the upper end of the rotating shaft (12) via a key (15). and a stop nut (9)' is hinged to the top thereof. (16) is a drive motor mounted at the rear center position of the moving table (6) via a bracket I-(17), and its output shaft (18) is parallel to the rotating shaft (12). A small-diameter pulley (19), which extends upward and is connected to the rotating plate (14) through a belt (20), is rotatably attached to the output shaft (18). In this example,
A drive motor (16) is installed on an adjustment plate (17)' that is horizontally movable on the upper surface of the placket (17).
), there is an adjustment screw (21) that adjusts the tension of the belt (20) by moving the adjustment plate (17) back and forth.
a and the set screw (21) that fixes the adjustment plate (17)'
b is provided. (22) has the rear end connected to the rotating plate (14).
) at the rear position of the rotation center O of the mounting rod (4).
At the tip of the horizontal horizontal piece (4) a, it is pivoted horizontally rotatably (4
), and the tip thereof is a horizontal link rod rotatably attached to a pivot rod (23) erected at the eccentric position of the rotary plate (14).

しかして第1図の状態からモータ(16)を始動してプ
ーリ(19)及びVベル!−(20)を介して回転板(
14)を図において反時計方向に回転すると、回転板(
14)は、回転軸(12)を支点として回転しながら取
付杆(4)に支承されたリンク杆(22)の長さの範囲
で前方に移動し、これと一体の移動板(6)もレール(
3) 、 (3)に案内されながら前方に移動し、この
前方への回転板(14)の移動は、リンク杆(22)が
、横片(4)aとの枢着点と、回転軸(12)の中心点
0と、枢止杆(23)との枢着点(4)°を結ぶ直線n
と一致するまで行われ、次いでリンク杆(22)が前記
直線を越えたのち、今度は、回転板(14)が回転しな
からモータ(16)と共に、後方に移動し、リンク杆(
22)は回転板(14)の回転により第1図実線の位置
からこれと対称の同図仮想線の位置に移動する。その結
果、回転板(14)の回転運動と移動板(6)の直線運
動の合成により、水平回動アーム(1))は歯列弓の形
状に近似する3円弧から成る楕円軌道に沿って回転移動
することになる。
Then, from the state shown in Figure 1, the motor (16) is started and the pulley (19) and V-bell are connected! - (20) through the rotating plate (
14) counterclockwise in the figure, the rotating plate (
14) rotates around the rotating shaft (12) as a fulcrum and moves forward within the length of the link rod (22) supported by the mounting rod (4), and the movable plate (6) integrated therewith also moves forward. rail(
3), moves forward while being guided by (3), and this forward movement of the rotary plate (14) is caused by the link rod (22) connecting to the pivot point with the horizontal piece (4) a and the rotation axis. A straight line n connecting the center point 0 of (12) and the pivot point (4)° of the pivot rod (23)
Then, after the link rod (22) crosses the straight line, the rotary plate (14) moves backward together with the motor (16) without rotating, and the link rod (22) crosses the straight line.
22) moves from the position indicated by the solid line in FIG. 1 to the symmetrical position indicated by the imaginary line in FIG. 1 by the rotation of the rotary plate (14). As a result, due to the combination of the rotational movement of the rotary plate (14) and the linear movement of the movable plate (6), the horizontal rotating arm (1)) moves along an elliptical trajectory consisting of three circular arcs that approximates the shape of the dental arch. It will rotate and move.

なお上記は、回転板(14)を大径に形成して、その編
心位置に、リンク杆(22)の先端を枢着連結した場合
を例示したが、回転板(14)に、その半径方向に延び
るように連結片を一体に設け、その先端部にリンク杆(
22)の先端を枢着連結してもよいことは勿論である。
In the above example, the rotating plate (14) is formed with a large diameter and the tip of the link rod (22) is pivotally connected to the center position of the rotating plate (14). A connecting piece is integrally provided so as to extend in the direction, and a link rod (
Of course, the tips of 22) may be pivotally connected.

発明の効果 以上の様に本願によれば、回転しながら直線移動する回
転板の回転中心から離れた任意の点に、固定部から延び
るリンク杆の一端を枢着して、その枢着点が描く楕円軌
跡を利用して、水平回動アームを回転移動する構成とし
たので、その構成が極めて簡単で、部品点数も少なく、
かつ、確実で安定した駆動を行えると共に、安価な装置
を提供し得る等の利点を有す。
Effects of the Invention According to the present application, one end of a link rod extending from a fixed part is pivotally connected to an arbitrary point away from the center of rotation of a rotary plate that moves linearly while rotating, and the pivot point is Since the horizontal rotating arm is configured to rotate and move using the drawn elliptical locus, the configuration is extremely simple and has a small number of parts.
In addition, it has the advantage that reliable and stable driving can be performed and an inexpensive device can be provided.

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

図面は本願の実施例を示し、第1図は平面図、第2図は
縦断面図である。 図中1. (2)は固定基板、(3)はレール、(4)
は取付杆、(4)aは水平横片、(6)は移動台、(7
)は台板、(8)は車輪、(1))は水平回動アーム、
(12)は回転軸、(14)は回動板、(16)はモー
タ、(22)はリンク杆である。
The drawings show an embodiment of the present application, with FIG. 1 being a plan view and FIG. 2 being a longitudinal sectional view. 1 in the figure. (2) is a fixed board, (3) is a rail, (4)
is the mounting rod, (4) a is the horizontal piece, (6) is the moving platform, (7
) is the base plate, (8) is the wheel, (1)) is the horizontal rotation arm,
(12) is a rotating shaft, (14) is a rotating plate, (16) is a motor, and (22) is a link rod.

Claims (5)

【特許請求の範囲】[Claims] (1)固定基板上に、前後方向に水平移動可能な移動台
を装備すると共に、この移動台に、垂直方向に延び、下
端部にX線管とX線フィルムとを両端部に対設した水平
回動アームを装着する回転軸を回転自在に軸承すると共
に、その上端に、前記移動台に装備した駆動源により回
転される回転板を軸着し、かつ、この回転板の回転中心
部より離れた位置に、基端が前記固定基板から延びる回
動自在のリンク杆の先端部を前記回転板に直接または間
接に枢着連結せしめて成る歯科用XB撮影装置における
駆動機構。
(1) A movable stage that can be horizontally moved in the front and back direction is equipped on the fixed substrate, and an X-ray tube and an X-ray film are installed on the lower end of the movable stage, extending vertically at both ends thereof. A rotating shaft on which a horizontal rotating arm is attached is rotatably supported, and a rotating plate rotated by a drive source installed on the moving table is attached to the upper end of the rotating shaft, and from the center of rotation of the rotating plate. A drive mechanism in a dental XB imaging apparatus, comprising a rotatable link rod whose base end extends from the fixed base plate, and the distal end of a rotatable link rod is directly or indirectly pivotally connected to the rotary plate at a remote position.
(2)リンク杆の基端に、固定基板に立設され、先端が
回転板上に延びる水平横片を有した取付杆の前記水平横
片の先端に枢着して成る特許請求の範囲第1項記載の歯
科用X線撮影装置における駆動機構。
(2) A mounting rod that is erected on a fixed base at the base end of the link rod and has a horizontal horizontal piece whose tip extends onto the rotary plate, and is pivotally connected to the tip of the horizontal horizontal piece. A drive mechanism in the dental X-ray imaging apparatus according to item 1.
(3)移動台が、方形状の台板から成り、その下面4隅
部に設けた車輪を、固定基板上に設けた前後方向に延び
る左右一対のレール上に走行可能に係合せしめて成る特
許請求の範囲第1項及び第2項記載の歯科用X線撮影装
置における駆動機構。
(3) A patent in which the movable platform consists of a rectangular base plate, and wheels provided at the four corners of the lower surface of the movable platform are movably engaged with a pair of left and right rails extending in the front and back direction provided on a fixed base plate. A drive mechanism in a dental X-ray imaging apparatus according to claims 1 and 2.
(4)回転板上の偏心位置に、リンク杆の先端部を枢着
連結して成る特許請求の範囲第1項、第2項または第3
項記載の歯科用X線撮影装置における駆動機構。
(4) Claims 1, 2 or 3 in which the tip of the link rod is pivotally connected to an eccentric position on the rotary plate.
A drive mechanism in the dental X-ray imaging apparatus described in 1.
(5)回転板に、連結片を一体に設け、この連結片の先
端部にリンク杆の先端部を枢着連結して成る特許請求の
範囲第1項、第2項または第3項記載の歯科用X線撮影
装置における駆動機構。
(5) A connecting piece is integrally provided on the rotary plate, and the tip of the link rod is pivotally connected to the tip of the connecting piece. A drive mechanism in a dental X-ray imaging device.
JP61124657A 1986-05-31 1986-05-31 Drive mechanism in dental x-ray photographic apparatus Pending JPS62284632A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61124657A JPS62284632A (en) 1986-05-31 1986-05-31 Drive mechanism in dental x-ray photographic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61124657A JPS62284632A (en) 1986-05-31 1986-05-31 Drive mechanism in dental x-ray photographic apparatus

Publications (1)

Publication Number Publication Date
JPS62284632A true JPS62284632A (en) 1987-12-10

Family

ID=14890825

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61124657A Pending JPS62284632A (en) 1986-05-31 1986-05-31 Drive mechanism in dental x-ray photographic apparatus

Country Status (1)

Country Link
JP (1) JPS62284632A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013244187A (en) * 2012-05-25 2013-12-09 Asahi Roentgen Kogyo Kk X-ray imaging apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013244187A (en) * 2012-05-25 2013-12-09 Asahi Roentgen Kogyo Kk X-ray imaging apparatus

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