JP3522409B2 - Occlusal force meter - Google Patents
Occlusal force meterInfo
- Publication number
- JP3522409B2 JP3522409B2 JP24835895A JP24835895A JP3522409B2 JP 3522409 B2 JP3522409 B2 JP 3522409B2 JP 24835895 A JP24835895 A JP 24835895A JP 24835895 A JP24835895 A JP 24835895A JP 3522409 B2 JP3522409 B2 JP 3522409B2
- Authority
- JP
- Japan
- Prior art keywords
- occlusal force
- pressure
- occlusal
- diaphragm
- upper arm
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
- A61C19/05—Measuring instruments specially adapted for dentistry for determining occlusion
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は咬合によって歯の咬
合面に加わる咬合力を測定するための咬合力計に関す
る。TECHNICAL FIELD The present invention relates to an occlusal force meter for measuring an occlusal force applied to an occlusal surface of a tooth by occlusion.
【０００２】[0002]
【従来の技術】従来、咬合力を測定する咬合力計として
は、実開昭５７−１７０７０４号公報で開示される咬合
力測定器及び実公平２−２５３７９号公報で開示される
咬合力測定装置等が知られている。2. Description of the Related Art Conventionally, as an occlusal force meter for measuring an occlusal force, an occlusal force measuring device disclosed in Japanese Utility Model Laid-Open No. 57-170704 and an occlusal force measuring device disclosed in Japanese Utility Model Publication No. 2-25379. Etc. are known.
【０００３】このような従来の咬合力計は、いずれも咬
合力を、力電気変換器を用いた咬合力検出部により直接
検出するものであり、咬合力検出部から得る検出信号を
本体部に付与するとともに、本体部では検出信号を処理
することにより咬合力測定値を得、この咬合力測定値を
当該本体部に付設した表示器に表示していた。In all of the conventional occlusal force meters, the occlusal force is directly detected by the occlusal force detecting section using a force-electrical converter, and the detection signal obtained from the occlusal force detecting section is transmitted to the main body section. The occlusal force measurement value was obtained by processing the detection signal in the main body part while it was given, and the occlusal force measurement value was displayed on the display attached to the main body part.
【０００４】[0004]
【発明が解決しようとする課題】ところで、この種の咬
合力計は、歯で咬む部分（被咬部）をできるだけ薄くす
ることが、正確な咬合力を測定し、また、使い勝手を高
める上で望ましい。By the way, in the occlusal force meter of this type, it is necessary to make the portion (bite) to be bitten by the teeth as thin as possible in order to measure the accurate occlusal force and to improve the usability. desirable.
【０００５】しかし、通常、咬合力のような大きい力を
検出するための力電気変換器（ロードセル）は、その厚
みがかなり厚くなるため、被測定者は測定時において、
厚みのある被咬部を口の中に入れて咬むことになり、使
い勝手に劣るとともに、咬合力を正確かつ的確に測定で
きない問題があった。However, since a force-electric transducer (load cell) for detecting a large force such as an occlusal force is usually considerably thick, the person to be measured is
Since a thick bite part is put in the mouth and bites, it is inconvenient and there is a problem that the occlusal force cannot be measured accurately and accurately.
【０００６】本発明はこのような従来の技術に存在する
課題を解決したものであり、使い勝手に優れ、しかも、
咬合力を正確かつ的確に測定できる咬合力計の提供を目
的とする。The present invention has solved the problems existing in such conventional techniques, is excellent in usability, and
It is an object of the present invention to provide an occlusal force meter that can accurately and accurately measure occlusal force.
【０００７】[0007]
【課題を解決するための手段及び実施の形態】本発明
は、咬合力を検出する咬合力検出部２と、この咬合力検
出部２から得る検出信号を処理して咬合力測定値を表示
器４に表示する本体部３を一体に備える咬合力計１にお
いて、特に、内部に圧力媒体液Ｌを封入し、かつ一端部
５ｆの上面及び（又は）下面にダイアフラム部７，８を
設けるとともに、他端部５ｒに配設した圧力検出器９
に、当該ダイアフラム部７，８に付与される咬合力を伝
達する圧力伝達部（第二圧力伝達部）５と、上アーム部
１１と下アーム部１２の後端同士を結合することにより
先端を相対変位可能に構成するとともに、上アーム部１
１と下アーム部１２の先端側に、歯Ｔ…とダイアフラム
部７，８間に位置し、咬合力を、当該ダイアフラム部
７，８の外面に当接させた圧力作用面Ｆｕ，Ｆｄを介し
てダイアフラム部７，８の面に直角に付与する第一圧力
伝達部１０とを備えてなる咬合力検出部２を有すること
を特徴とする。Means and Embodiments for Solving the Problems The present invention relates to an occlusal force detection unit 2 for detecting an occlusal force, and a detection signal obtained from the occlusal force detection unit 2 to display an occlusal force measurement value on a display. In the occlusal force meter 1 integrally provided with the main body portion 3 shown in 4, the pressure medium liquid L is sealed inside, and the diaphragm portions 7 and 8 are provided on the upper surface and / or the lower surface of the one end 5f, Pressure detector 9 arranged at the other end 5r
The pressure transmitting portion (second pressure transmitting portion) 5 that transmits the occlusal force applied to the diaphragm portions 7 and 8 and the rear ends of the upper arm portion 11 and the lower arm portion 12 are joined to The upper arm 1 is configured to be capable of relative displacement
1 and the tip side of the lower arm portion 12 are located between the teeth T ... and the diaphragm portions 7 and 8, and the occlusal force is applied to the outer surfaces of the diaphragm portions 7 and 8 through the pressure acting surfaces Fu and Fd. It is characterized in that it has an occlusal force detection unit 2 including a first pressure transmission unit 10 applied perpendicularly to the surfaces of the diaphragm units 7 and 8.
【０００８】この場合、好適な実施の形態により、第一
圧力伝達部１０は、上アーム部１１及び（又は）下アー
ム部１２の全部又は一部をバネ材により形成し、上アー
ム部１１と下アーム部１２の後端同士を固着して構成し
てもよいし、上アーム部１１と下アーム部１２の後端同
士を回動自在のヒンジ部１３により結合して構成しても
よい。In this case, according to a preferred embodiment, the first pressure transmitting portion 10 is such that all or part of the upper arm portion 11 and / or the lower arm portion 12 is formed of a spring material, and the upper arm portion 11 and The rear ends of the lower arm portion 12 may be fixed to each other, or the rear ends of the upper arm portion 11 and the lower arm portion 12 may be connected to each other by a rotatable hinge portion 13.
【０００９】また、咬合力検出部２と本体部３は弾性連
結部１４を介して屈曲自在に結合する。この際、バネ材
により形成した上アーム部１１又は下アーム部１２の一
方の後端に延長部１５を一体に設け、この延長部１５の
後端を本体部３に結合することにより当該延長部１５を
弾性連結部１４として用いることができる。さらにま
た、咬合力検出部２を覆う柔軟な保護ケース１６を備え
る。この保護ケース１６は塩化ビニルにより形成するこ
とが望ましい。Further, the occlusal force detecting portion 2 and the main body portion 3 are flexibly connected via an elastic connecting portion 14. At this time, an extension portion 15 is integrally provided at a rear end of one of the upper arm portion 11 and the lower arm portion 12 formed of a spring material, and the rear end of the extension portion 15 is coupled to the main body portion 3 to thereby extend the extension portion. 15 can be used as the elastic connecting portion 14. Furthermore, a flexible protective case 16 that covers the occlusal force detection unit 2 is provided. The protective case 16 is preferably made of vinyl chloride.
【００１０】これにより、ダイアフラム部７，８を設け
た位置（被咬部）を歯Ｔ…で咬めば、咬合力は、第一圧
力伝達部１０の存在により、圧力作用面Ｆｕ，Ｆｄを介
して当該ダイアフラム部７，８の面に対して直角方向に
均一に付与される。具体的には、第一圧力伝達部１０
は、上アーム部１１と下アーム部１２の後端同士を結合
することにより先端を相対変位可能に構成し、この上ア
ーム部１１と下アーム部１２の先端側に圧力作用面Ｆ
ｕ，Ｆｄを設けてなるため、各圧力作用面ＦｕとＦｄは
ダイアフラム部７，８の面に対して直角方向に相対変位
する。よって、第一圧力伝達部１０が存在しない場合、
即ち、ダイアフラム部７，８の面に当接する受圧盤のみ
の場合には、歯Ｔ…の位置や角度、さらに測定状態等に
より咬合力がダイアフラム部７，８に対して直角方向均
一に付与されない弊害を生ずるが、第一圧力伝達部１０
の機能により、このような弊害は解消され、常に、正確
な測定が行われる。As a result, when the position (the bite portion) where the diaphragm portions 7 and 8 are provided is bitten by the teeth T, the occlusal force is generated by the presence of the first pressure transmitting portion 10 through the pressure acting surfaces Fu and Fd. Are evenly applied in a direction perpendicular to the surfaces of the diaphragm portions 7 and 8. Specifically, the first pressure transmission unit 10
Is configured such that the rear ends of the upper arm portion 11 and the lower arm portion 12 are coupled to each other so that the tips can be displaced relative to each other.
Since u and Fd are provided, the pressure acting surfaces Fu and Fd are relatively displaced in the direction perpendicular to the surfaces of the diaphragm portions 7 and 8. Therefore, when the first pressure transmission unit 10 does not exist,
That is, in the case of only the pressure receiving plate contacting the surfaces of the diaphragm portions 7 and 8, the occlusal force is not uniformly applied to the diaphragm portions 7 and 8 in the direction perpendicular to the diaphragm portions 7 and 8 depending on the positions and angles of the teeth T, and the measurement state. The first pressure transmitting portion 10 causes adverse effects.
With the function of, such an adverse effect is eliminated, and accurate measurement is always performed.
【００１１】一方、ダイアフラム部７，８に付与された
咬合力は、圧力媒体液Ｌを介して圧力伝達部５の他端部
５ｒに配設した圧力検出器９に伝達され、当該圧力検出
器９により咬合力が検出される。そして、本体部３にお
いては圧力検出器９から得られる検出信号が処理され、
咬合力測定値が得られるとともに、この咬合力測定値は
表示器４により表示される。On the other hand, the occlusal force applied to the diaphragm portions 7 and 8 is transmitted via the pressure medium liquid L to the pressure detector 9 arranged at the other end 5r of the pressure transmitting portion 5, and the pressure detector concerned. The bite force is detected by 9. Then, in the main body 3, the detection signal obtained from the pressure detector 9 is processed,
The occlusal force measurement value is obtained, and the occlusal force measurement value is displayed by the display device 4.
【００１２】この場合、被測定者の咬むダイアフラム部
７，８の位置には圧力検出器９が存在しないため、被咬
部となる咬合力検出部２は極めて薄く構成できる。した
がって、咬み易くなり、使い勝手が高められるととも
に、正確かつ的確な咬合力の測定が可能となる。In this case, since the pressure detector 9 does not exist at the positions of the diaphragm portions 7 and 8 on which the person to be measured bites, the occlusal force detecting portion 2 serving as the bite portion can be made extremely thin. Therefore, it becomes easier to bite, the usability is improved, and the occlusal force can be measured accurately and accurately.
【００１３】なお、咬合力検出部２と本体部３は弾性連
結部１４を介して結合されるため、咬合力検出部２と本
体部３は弾性的に屈曲自在となり、使い勝手が高められ
るとともに、特に、バネ材により形成した上アーム部１
１又は下アーム部１２の一方の後端に延長部１５を一体
に設け、この延長部１５の後端を本体部３に結合するこ
とにより当該延長部１５を弾性連結部１４として用いれ
ば、構成の簡略化とコストダウンが図られるとともに、
咬合力検出部２と本体部３間が折れ（破損し）にくくな
る。さらに、咬合力検出部２を覆う柔軟な保護ケース１
６により防水性が確保されるとともに、特に、塩化ビニ
ルにより形成すれば、保護ケース１６に付いた歯型も、
例えばお湯の中に浸ける等により元の状態に容易に復帰
させることが可能となる。Since the occlusal force detecting portion 2 and the main body portion 3 are coupled via the elastic connecting portion 14, the occlusal force detecting portion 2 and the main body portion 3 are elastically bendable, and the usability is improved and In particular, the upper arm portion 1 formed of a spring material
1 or the lower arm portion 12 is integrally provided with an extension portion 15 at the rear end thereof, and the rear end of the extension portion 15 is coupled to the main body portion 3 to use the extension portion 15 as the elastic connecting portion 14. Simplification and cost reduction,
It becomes difficult for the occlusal force detection unit 2 and the main body unit 3 to be broken (broken). Further, a flexible protective case 1 for covering the occlusal force detection unit 2
6 ensures waterproofness, and especially if it is made of vinyl chloride, the tooth type attached to the protective case 16
For example, it is possible to easily restore the original state by immersing it in hot water.
【００１４】[0014]
【実施例】次に、本発明に係る好適な実施例を挙げ、図
面に基づき詳細に説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings.
【００１５】まず、本実施例に係る咬合力計１の外観構
成について、図５を参照して説明する。First, the external structure of the occlusal force meter 1 according to this embodiment will be described with reference to FIG.
【００１６】咬合力計１は一体化した本体部３と咬合力
検出部２を備える。本体部３は手で持てるグリップを兼
ねたハウジング部１８を有し、このハウジング部１８に
は電子回路，電池等を内蔵する。一方、ハウジング部１
８の上面には咬合力測定値をディジタル表示する表示器
４及び電源キー（機能キー）１９等を配設する。そし
て、ハウジング部１８の前端には弾性連結部１４を介し
て咬合力検出部２を一体に設ける。The occlusal force meter 1 comprises a body 3 and an occlusal force detector 2 which are integrated. The main body portion 3 has a housing portion 18 that also functions as a grip that can be held by hand, and the housing portion 18 contains an electronic circuit, a battery, and the like. On the other hand, the housing part 1
On the upper surface of 8, an indicator 4 for digitally displaying the measured value of the occlusal force, a power key (function key) 19 and the like are provided. Then, the occlusal force detection unit 2 is integrally provided at the front end of the housing unit 18 via the elastic connection unit 14.
【００１７】次に、本発明の要部をなす咬合力検出部２
及び弾性連結部１４の構成について、図１〜図４を参照
して説明する。Next, the occlusal force detection unit 2 forming the essential part of the present invention
The configuration of the elastic connecting portion 14 will be described with reference to FIGS.
【００１８】咬合力検出部２は先端に受圧タンク部２１
を内蔵する。受圧タンク部２１はバネ用ステンレスによ
り内部中空の偏平に形成し、後端には開口部２２を設け
る。受圧タンク部２１の上面及び下面は薄肉形成し、そ
れぞれダイアフラム部７及び８として機能させる。ま
た、開口部２２には図３及び図４に示すように、圧力伝
達管２３と補助管２４の先端及び取付プレート２５の先
端をそれぞれ挿入し、ロー付け等により固定する。これ
により、開口部２２は閉塞される。なお、補助管２４の
先端は閉塞する。The occlusal force detection unit 2 has a pressure receiving tank unit 21 at its tip.
Built in. The pressure receiving tank portion 21 is made of stainless steel for spring and formed in a flat shape having an inner hollow, and an opening portion 22 is provided at the rear end. The upper surface and the lower surface of the pressure receiving tank portion 21 are formed thin so that they function as diaphragm portions 7 and 8, respectively. Further, as shown in FIGS. 3 and 4, the tip ends of the pressure transmission pipe 23 and the auxiliary pipe 24 and the tip end of the mounting plate 25 are inserted into the opening 22 and fixed by brazing or the like. As a result, the opening 22 is closed. The tip of the auxiliary pipe 24 is closed.
【００１９】一方、受圧タンク部２１から離間した後方
位置には圧力検出器９を配する。圧力検出器９は検出器
本体２６にカプラ２７を結合し、内部に加圧室２８を設
けて構成する。そして、前記圧力伝達管２３の後端を圧
力検出器９に接続し、圧力伝達管２３の内部を加圧室２
８に連通させる。なお、３０は加圧室２８に連通させた
補助管であり、先端は閉塞する。このような構成によ
り、受圧タンク部２１，加圧室２８，圧力伝達管２３，
補助管２４及び３０は、内部が連通され、かつ密閉され
るため、内部にはプロピレングリコール等の圧力媒体液
Ｌを封入する。なお、圧力伝達管２３，補助管２４及び
３０は液量が最少となるような細管を使用する。また、
補助管２４及び３０は圧力媒体液Ｌを封入する際に利用
される。On the other hand, a pressure detector 9 is arranged at a rear position separated from the pressure receiving tank portion 21. The pressure detector 9 is configured by connecting a coupler 27 to the detector body 26 and providing a pressurizing chamber 28 inside. The rear end of the pressure transmission pipe 23 is connected to the pressure detector 9, and the inside of the pressure transmission pipe 23 is connected to the pressurizing chamber 2.
Connect to 8. Reference numeral 30 is an auxiliary pipe communicating with the pressurizing chamber 28, and its tip is closed. With such a configuration, the pressure receiving tank portion 21, the pressurizing chamber 28, the pressure transmission pipe 23,
The auxiliary pipes 24 and 30 are internally communicated and hermetically sealed, so that the pressure medium liquid L such as propylene glycol is sealed inside. The pressure transmission pipe 23 and the auxiliary pipes 24 and 30 are thin pipes that minimize the amount of liquid. Also,
The auxiliary pipes 24 and 30 are used when enclosing the pressure medium liquid L.
【００２０】これにより、ダイアフラム部７，８に付与
される咬合力は、圧力媒体液Ｌを介して圧力検出器９に
伝達され、圧力検出器９により電気信号として取出され
る。この圧力検出器９は金属ダイアフラム形圧力センサ
を利用できる。このような受圧タンク部２１から圧力検
出器９までの構成は第二圧力伝達部５となる。As a result, the occlusal force applied to the diaphragm portions 7 and 8 is transmitted to the pressure detector 9 via the pressure medium liquid L and is taken out by the pressure detector 9 as an electric signal. As the pressure detector 9, a metal diaphragm type pressure sensor can be used. The configuration from the pressure receiving tank portion 21 to the pressure detector 9 is the second pressure transmitting portion 5.
【００２１】他方、下側のダイアフラム部８にはベース
プレート３１を当接させるとともに、このベースプレー
ト３１の後端は取付プレート２５に固着する。これによ
り、ダイアフラム部８に対するベースプレート３１の当
接面は圧力作用面Ｆｄとなり、取付プレート２５及びベ
ースプレート３１は下アーム部１２を構成する。On the other hand, the base plate 31 is brought into contact with the lower diaphragm portion 8, and the rear end of the base plate 31 is fixed to the mounting plate 25. As a result, the contact surface of the base plate 31 with respect to the diaphragm portion 8 becomes the pressure acting surface Fd, and the mounting plate 25 and the base plate 31 form the lower arm portion 12.
【００２２】一方、上側のダイアフラム部７には円形の
受圧盤３２を当接させるとともに、さらに、受圧盤３２
の上にはレバープレート３３の先端側を当接させる。レ
バープレート３３はバネ用ステンレス（バネ材）により
幅広に形成する。そして、レバープレート３３の中間部
と取付プレート２５の他端は、図３に示すように溶接部
３４により固着する。これにより、ダイアフラム部７に
対する受圧盤３２の当接面は圧力作用面Ｆｕとなり、受
圧盤３２及びレバープレート３３における溶接部３４よ
りも前側（受圧盤３２側）は上アーム部１１を構成す
る。この場合、レバープレート３３におけるダイアフラ
ム部７に対向する面は当該ダイアフラム部７に対して平
行となるように適所を折曲する。なお、ダイアフラム部
７，８の存在する咬合力検出部２の位置は被咬部６とな
る。On the other hand, a circular pressure receiving plate 32 is brought into contact with the upper diaphragm portion 7, and the pressure receiving plate 32 is further provided.
The tip end side of the lever plate 33 is brought into contact with the upper part. The lever plate 33 is made wide with stainless steel for spring (spring material). Then, the intermediate portion of the lever plate 33 and the other end of the mounting plate 25 are fixed by the welded portion 34 as shown in FIG. As a result, the contact surface of the pressure receiving plate 32 with respect to the diaphragm portion 7 becomes the pressure acting surface Fu, and the front side (pressure receiving plate 32 side) of the pressure receiving plate 32 and the lever plate 33 in front of the welded portion 34 constitutes the upper arm portion 11. In this case, the surface of the lever plate 33 facing the diaphragm portion 7 is bent at an appropriate position so as to be parallel to the diaphragm portion 7. The position of the occlusal force detection part 2 where the diaphragm parts 7 and 8 exist is the bite part 6.
【００２３】よって、上アーム部１１と下アーム部１２
の後端同士が結合されるとともに、先端は相対変位可能
となり、上アーム部１１と下アーム部１２は、歯Ｔ…と
ダイアフラム部７，８間に位置し、被咬部６を歯Ｔ…で
咬んだ際に、咬合力を、ダイアフラム部７，８の外面に
当接させた圧力作用面Ｆｕ，Ｆｄを介して当該ダイアフ
ラム部７，８の面に直角に付与する第一圧力伝達部１０
を構成する。なお、上アーム部１１を構成するレバープ
レート３３は一定の弾性を有することから、この弾発力
は咬合力に対して誤差として影響するため、本体部３で
は検出信号の信号処理（ゼロ調整）により当該誤差をキ
ャンセルする。Therefore, the upper arm portion 11 and the lower arm portion 12
The rear ends of the upper arm portion 11 and the lower arm portion 12 are relatively displaced while the rear ends thereof are coupled to each other, and the upper arm portion 11 and the lower arm portion 12 are located between the tooth T ... First pressure transmitting portion for applying an occlusal force at right angles to the surfaces of the diaphragm portions 7 and 8 through the pressure acting surfaces Fu and Fd which are brought into contact with the outer surfaces of the diaphragm portions 7 and 8 when bitten by 10
Make up. Since the lever plate 33 that constitutes the upper arm 11 has a certain elasticity, this elastic force affects the occlusal force as an error, so that the main body 3 performs signal processing of the detection signal (zero adjustment). The error is canceled by.
【００２４】他方、溶接部３４よりも後側に位置するレ
バープレート３３は延長部１５となる。延長部１５は前
半部を検出器取付部３５として折曲形成するとともに、
後半部を屈曲自在な弾性連結部１４として用いる。そし
て、この検出器取付部３５には前記圧力検出器９を取付
固定するとともに、延長部１５の後端は前記ハウジング
部１８の先端内部にネジ３６…により固定する。On the other hand, the lever plate 33 located on the rear side of the welded portion 34 becomes the extension portion 15. The extension part 15 is formed by bending the front half as the detector mounting part 35, and
The latter half is used as a flexible elastic connecting portion 14. Then, the pressure detector 9 is attached and fixed to the detector attaching portion 35, and the rear end of the extension portion 15 is fixed inside the tip of the housing portion 18 with screws 36.
【００２５】また、１６は塩化ビニルにより形成した柔
軟な保護ケースであり後端が開口する。咬合力検出部２
の内部機構は保護ケース１６により完全に覆われる。な
お、保護ケース１６における弾性連結部１４に対応する
位置は、前記延長部１５の屈曲に応じて伸縮できるよう
に、蛇腹状（アコーディオン状）に形成する。Numeral 16 is a flexible protective case made of vinyl chloride and has a rear end opened. Occlusal force detector 2
The internal mechanism of is completely covered by the protective case 16. The position corresponding to the elastic connecting portion 14 in the protective case 16 is formed in a bellows shape (accordion shape) so that it can be expanded and contracted according to the bending of the extension portion 15.
【００２６】次に、本実施例に係る咬合力計１の使用方
法について、各図を参照して説明する。Next, a method of using the occlusal force meter 1 according to this embodiment will be described with reference to the drawings.
【００２７】まず、被測定者はハウジング部１８を手で
持ち、着脱式（使い捨て方式）のディスポキャップ１７
を被せた被咬部６を口の中に入れる。そして、位置決め
後、図１に示す位置において、被咬部６を歯Ｔ…で力一
杯に咬めば、このときの咬合力は第一圧力伝達部１０を
介して第二圧力伝達部５のダイアフラム部７，８に伝達
される。この際、第一圧力伝達部１０は、上アーム部１
１と下アーム部１２の後端同士を結合することにより先
端を相対変位可能に構成するため、咬合力は各圧力作用
面ＦｕとＦｄを介してダイアフラム部７，８の面に対し
て直角方向均一に付与され、常に、正確な測定が行われ
る。First, the person to be measured holds the housing portion 18 by hand, and the detachable (disposable) disposable cap 17
The bite part 6 covered with is put in the mouth. Then, after positioning, when the bite portion 6 is fully bitten by the teeth T at the position shown in FIG. 1, the occlusal force at this time is transmitted through the first pressure transmission portion 10 to the diaphragm of the second pressure transmission portion 5. It is transmitted to the parts 7 and 8. At this time, the first pressure transmission unit 10 is connected to the upper arm unit 1.
Since the tip is configured to be relatively displaceable by connecting the rear ends of 1 and the lower arm portion 12, the occlusal force is applied in the direction perpendicular to the surfaces of the diaphragm portions 7 and 8 via the pressure acting surfaces Fu and Fd. It is applied evenly and always gives an accurate measurement.
【００２８】一方、ダイアフラム部７，８に付与された
咬合力は、さらに、受圧タンク部２１内の圧力媒体液Ｌ
に付与される。そして、圧力伝達管２３及び加圧室２８
内の圧力媒体液Ｌを介して圧力検出器９の検出器本体２
６に伝達された咬合力は、当該検出器本体２６によって
電気信号（検出信号）に変換される。また、検出器本体
２６から得る検出信号は、本体部３における不図示の信
号処理部により、補正及びアナログ−ディジタル変換等
の処理が行われ、咬合力測定値に変換された後、表示器
４により表示される。On the other hand, the occlusal force applied to the diaphragm portions 7 and 8 is further applied to the pressure medium liquid L in the pressure receiving tank portion 21.
Granted to. Then, the pressure transmission pipe 23 and the pressurizing chamber 28
Through the pressure medium liquid L in the detector body 2 of the pressure detector 9
The occlusal force transmitted to 6 is converted into an electric signal (detection signal) by the detector body 26. Further, the detection signal obtained from the detector main body 26 is subjected to processing such as correction and analog-digital conversion by a signal processing unit (not shown) in the main body unit 3, and after being converted into an occlusal force measurement value, the display unit 4 Displayed by.
【００２９】次に、本発明の変更実施例について、図６
〜図１０を参照して説明する。なお、図６〜図８は第一
圧力伝達部１０の変更実施例を、また、図９及び図１０
は弾性連結部１４の変更実施例をそれぞれ示す。Next, a modified embodiment of the present invention will be described with reference to FIG.
~ It demonstrates with reference to FIG. 6 to 8 are modified examples of the first pressure transmission unit 10, and FIGS.
Shows modified examples of the elastic connecting portion 14, respectively.
【００３０】まず、図６は図３に示したレバープレート
３３の変更例である。変更例はレバープレート３３を構
成するに際して、別体に形成した前側の加圧プレート５
１と後側の板バネプレート５２を組み合わせて構成した
ものである。このような構成により、加圧プレート５１
と板バネプレート５２の材質，厚さ，形状等を容易に異
ならせることができ、例えば、加圧プレート５１を剛性
材により形成して受圧盤３２に当接させるとともに、こ
の加圧プレート５１を取付プレート２５側に固着した適
度の弾性を有する板バネプレート５２により支持でき
る。First, FIG. 6 shows a modification of the lever plate 33 shown in FIG. In the modified example, when the lever plate 33 is constructed, the pressure plate 5 on the front side formed separately is formed.
1 and the leaf spring plate 52 on the rear side are combined. With such a configuration, the pressure plate 51
The material, thickness, shape and the like of the plate spring plate 52 and the plate spring plate 52 can be easily made different. For example, the pressure plate 51 is made of a rigid material and is brought into contact with the pressure receiving plate 32. It can be supported by the leaf spring plate 52 having a proper elasticity fixed to the mounting plate 25 side.
【００３１】また、図７はダイアフラム部７に当接する
受圧盤３２に一定の厚さを有する被ガイドブロック５３
を固着するとともに、この被ガイドブロック５３をダイ
アフラム部７の面に対して直角方向にガイドするガイド
スリット５５を一体に有するガイド部材５４を設けたも
のであり、ガイド部材５４にはダイアフラム部８に当接
する圧力作用面Ｆｄを一体に有する。このような構成に
よっても、各圧力作用面ＦｕとＦｄをダイアフラム部
７，８の面に対して直角方向に相対変位させることがで
きる。なお、受圧盤３２を一定の厚さに形成すれば、被
ガイドブロック５３は省略できる。Further, FIG. 7 shows a guided block 53 having a constant thickness on the pressure receiving plate 32 which is in contact with the diaphragm portion 7.
And a guide member 54 integrally provided with a guide slit 55 for guiding the guided block 53 in a direction perpendicular to the surface of the diaphragm portion 7. The pressure acting surface Fd which contacts is integrally provided. Also with such a configuration, the pressure acting surfaces Fu and Fd can be relatively displaced in the direction perpendicular to the surfaces of the diaphragm portions 7 and 8. If the pressure receiving plate 32 is formed to have a constant thickness, the guided block 53 can be omitted.
【００３２】さらに、図８は上アーム部１１と下アーム
部１２の後端同士を回動自在のヒンジ部１３により結合
したものである。即ち、取付プレート２５の後端に設け
た軸受ブラケット部５６とレバープレート３３の後端に
設けた軸受部を軸部５７により回動自在に結合したもの
であり、図３に示す実施列に比べて構成は複雑になる
も、レバープレート３３の弾発力が測定値に影響しない
利点がある。なお、レバープレート３３は弾性を有する
ことを要しない。Further, in FIG. 8, the rear ends of the upper arm portion 11 and the lower arm portion 12 are joined by a rotatable hinge portion 13. That is, the bearing bracket portion 56 provided at the rear end of the mounting plate 25 and the bearing portion provided at the rear end of the lever plate 33 are rotatably coupled by the shaft portion 57, which is different from the embodiment shown in FIG. Although the structure becomes complicated, there is an advantage that the elastic force of the lever plate 33 does not affect the measured value. The lever plate 33 does not need to have elasticity.
【００３３】他方、図９はレバープレート３３と弾性連
結部１４（及び検出器取付部３５）を別体に形成したも
のである。したがって、図１に示した実施例に対して延
長部１５を短くし、延長部１５の後端に圧力検出器９を
取付けるとともに、弾性連結部１４及び検出器取付部３
５を一体に形成した連結プレート５８の前端を圧力検出
器９に取付け、さらに、連結プレート５８の後端をハウ
ジング部１８に固定した。これにより、弾性連結部１４
とレバープレート３３の材質，厚さ，形状等を容易に異
ならせることができる。On the other hand, in FIG. 9, the lever plate 33 and the elastic connecting portion 14 (and the detector mounting portion 35) are separately formed. Therefore, the extension portion 15 is made shorter than that of the embodiment shown in FIG. 1, the pressure detector 9 is attached to the rear end of the extension portion 15, and the elastic connection portion 14 and the detector attachment portion 3 are provided.
The front end of the connecting plate 58 integrally formed with 5 was attached to the pressure detector 9, and the rear end of the connecting plate 58 was fixed to the housing portion 18. Thereby, the elastic connecting portion 14
The material, thickness, shape, etc. of the lever plate 33 can be easily changed.
【００３４】また、図１０は図９に示した変更実施例に
おける連結プレート５８の代わりに弾性プラスチックに
より形成した連結部材５９を用いて弾性連結部１４を構
成したものであり、連結部材５９の前端に設けた収容部
６０により圧力検出器９を保持する。したがって、この
場合、収容部６０は前述した保護ケース１６を兼用す
る。Further, FIG. 10 shows that the elastic connecting portion 14 is constructed by using a connecting member 59 made of elastic plastic instead of the connecting plate 58 in the modified embodiment shown in FIG. 9, and the front end of the connecting member 59. The pressure detector 9 is held by the accommodating portion 60 provided in the. Therefore, in this case, the housing portion 60 also serves as the protective case 16 described above.
【００３５】以上、実施例について詳細に説明したが、
本発明はこのような実施例に限定されるものではない。
例えば、ダイアフラム部は上面と下面の双方に設けた
が、いずれか一方であってもよい。また、下アーム部を
構成する取付プレートに弾性をもたせてもよい。その
他、細部の構成、形状、素材等において、本発明の要旨
を逸脱しない範囲で任意に変更できる。The embodiment has been described in detail above.
The present invention is not limited to such an embodiment.
For example, although the diaphragm portion is provided on both the upper surface and the lower surface, either one may be provided. Further, the mounting plate forming the lower arm may have elasticity. In addition, the detailed configuration, shape, material and the like can be arbitrarily changed without departing from the scope of the present invention.
【００３６】[0036]
【発明の効果】このように本発明は、咬合力を検出する
咬合力検出部と、この咬合力検出部から得る検出信号を
処理して咬合力測定値を表示器に表示する本体部を一体
に備える咬合力計において、内部に圧力媒体液を封入
し、かつ一端部の上面及び（又は）下面にダイアフラム
部を設けるとともに、他端部に配設した圧力検出器に、
当該ダイアフラム部に付与される咬合力を伝達する圧力
伝達部（第二圧力伝達部）と、上アーム部と下アーム部
の後端同士を結合することにより先端を相対変位可能に
構成するとともに、上アーム部と下アーム部の先端側
に、歯とダイアフラム部間に位置し、咬合力を、当該ダ
イアフラム部の外面に当接させた圧力作用面を介して当
該ダイアフラム部の面に直角に付与する第一圧力伝達部
とを備えてなる咬合力検出部を有するため、次のような
顕著な効果を奏する。As described above, according to the present invention, the occlusal force detecting section for detecting the occlusal force and the main body section for processing the detection signal obtained from the occlusal force detecting section to display the occlusal force measurement value on the display are integrated. In the occlusal force meter equipped with, the pressure medium liquid is sealed inside, and the diaphragm part is provided on the upper surface and / or the lower surface of one end, and the pressure detector arranged at the other end,
A pressure transmitting portion (second pressure transmitting portion) that transmits an occlusal force applied to the diaphragm portion and a rear end of the upper arm portion and the lower arm portion are joined to each other by coupling the rear ends thereof, Located between the teeth and the diaphragm on the tip side of the upper arm and the lower arm, the occlusal force is applied at a right angle to the surface of the diaphragm through the pressure acting surface that is in contact with the outer surface of the diaphragm. Since the occlusal force detection unit including the first pressure transmission unit is provided, the following remarkable effects are obtained.
【００３７】 咬合力は第一圧力伝達部によりダイア
フラム部の面に対して直角方向に均一に付与されるた
め、歯の位置や角度、さらに測定状態等に左右されるこ
となく、常に、正確な測定を行うことができる。Since the occlusal force is uniformly applied to the surface of the diaphragm in the direction perpendicular to the surface of the diaphragm by the first pressure transmitting unit, the occlusal force is not affected by the position and angle of the tooth, the measurement state, etc., and is always accurate. A measurement can be made.
【００３８】 被咬部となる咬合力検出部は、第二圧
力伝達部により極めて薄く構成できるため、咬み易くな
り、使い勝手が高められるとともに、加えて、正確かつ
的確な咬合力の測定を行うことができる。Since the occlusal force detection unit serving as the occluded part can be made extremely thin by the second pressure transmission unit, it is easy to bite and the usability is improved, and in addition, accurate and accurate measurement of the occlusal force is required. You can
【００３９】 咬合力検出部を覆う保護ケースの付設
により、防水性が高められ、しかも、汚れやゴミ等の付
着が防止されることにより衛生的となる。By attaching a protective case that covers the occlusal force detection portion, the waterproof property is enhanced, and moreover, dirt and dust are prevented from adhering, which results in hygiene.
【図１】本発明に係る咬合力計における咬合力検出部の
一部断面側面図、FIG. 1 is a partial cross-sectional side view of an occlusal force detection unit in an occlusal force meter according to the present invention,
【図２】同咬合力計における咬合力検出部の保護ケース
及びハウジング部を破断した平面図、FIG. 2 is a plan view in which a protective case and a housing part of an occlusal force detection unit in the occlusal force meter are broken away,
【図３】同咬合力計の咬合力検出部における第一圧力伝
達部の断面側面図、FIG. 3 is a cross-sectional side view of a first pressure transmission unit in an occlusal force detection unit of the occlusal force meter,
【図４】図３に示す第一圧力伝達部の一部断面平面図、4 is a partial cross-sectional plan view of the first pressure transmitting portion shown in FIG.
【図５】同咬合力計の外観平面図、FIG. 5 is an external plan view of the occlusal force meter,
【図６】本発明の変更実施例に係る第一圧力伝達部の断
面側面図、FIG. 6 is a sectional side view of a first pressure transmitting portion according to a modified embodiment of the present invention,
【図７】本発明の他の変更実施例に係る第一圧力伝達部
の断面側面図、FIG. 7 is a sectional side view of a first pressure transmitting portion according to another modified embodiment of the present invention,
【図８】本発明の他の変更実施例に係る第一圧力伝達部
の一部断面側面図、FIG. 8 is a partial cross-sectional side view of a first pressure transmitting portion according to another modified embodiment of the present invention,
【図９】本発明の変更実施例に係る弾性連結部の断面側
面図、FIG. 9 is a sectional side view of an elastic connecting portion according to a modified embodiment of the present invention,
【図１０】本発明の他の変更実施例に係る弾性連結部の
断面側面図、FIG. 10 is a sectional side view of an elastic connecting portion according to another modified embodiment of the present invention,
１ 咬合力計 ２ 咬合力検出部 ３ 本体部 ４ 表示器 ５ 圧力伝達部（第二圧力伝達部） ５ｆ 一端部 ５ｒ 他端部 ７ ダイアフラム部 ８ ダイアフラム部 ９ 圧力検出器 １０ 第一圧力伝達部 １１ 上アーム部 １２ 下アーム部 １３ ヒンジ部 １４ 弾性連結部 １５ 延長部 １６ 保護ケース Ｌ 圧力媒体液 Ｆｕ 圧力作用面 Ｆｄ 圧力作用面 Ｔ… 歯 1 bite force meter 2 Occlusal force detector 3 main body 4 display 5 Pressure transmission part (second pressure transmission part) 5f One end 5r The other end 7 Diaphragm part 8 Diaphragm part 9 Pressure detector 10 First pressure transmitter 11 Upper arm 12 Lower arm 13 Hinge part 14 Elastic connection 15 Extension 16 protective case L Pressure medium liquid Fu Pressure acting surface Fd Pressure acting surface T ... Tooth
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平３−168144（ＪＰ，Ａ) 実開 平３−98818（ＪＰ，Ｕ) 実開 昭49−125783（ＪＰ，Ｕ) 実開 昭58−136121（ＪＰ，Ｕ) 実公 平２−25379（ＪＰ，Ｙ２) (58)調査した分野(Int.Cl.7，ＤＢ名) A61B 5/103 - 5/11 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-3-168144 (JP, A) Actually open 3-98818 (JP, U) Actually open 49-125783 (JP, U) Actually open 58- 136121 (JP, U) Jitsuhei 2-25379 (JP, Y2) (58) Fields investigated (Int.Cl. 7 , DB name) A61B 5/103-5/11
Claims (7)
咬合力検出部から得る検出信号を処理して咬合力測定値
を表示器に表示する本体部を一体に備える咬合力計にお
いて、内部に圧力媒体液を封入し、かつ一端部の上面及
び（又は）下面にダイアフラム部を設けるとともに、他
端部に配設した圧力検出器に、当該ダイアフラム部に付
与される咬合力を伝達する圧力伝達部（第二圧力伝達
部）と、上アーム部と下アーム部の後端同士を結合する
ことにより先端を相対変位可能に構成するとともに、上
アーム部と下アーム部の先端側に、歯とダイアフラム部
間に位置し、咬合力を、ダイアフラム部の外面に当接さ
せた圧力作用面を介して当該ダイアフラム部の面に直角
に付与する第一圧力伝達部とを備えてなる咬合力検出部
を有することを特徴とする咬合力計。1. An occlusal force meter integrally comprising an occlusal force detection unit for detecting occlusal force and a main body unit for processing a detection signal obtained from the occlusal force detection unit to display an occlusal force measurement value on a display, A pressure medium liquid is sealed inside, and a diaphragm portion is provided on the upper surface and / or lower surface of one end portion, and the occlusal force applied to the diaphragm portion is transmitted to the pressure detector arranged at the other end portion. By combining the pressure transmitting portion (second pressure transmitting portion) and the rear ends of the upper arm portion and the lower arm portion, the tip can be relatively displaced, and at the tip side of the upper arm portion and the lower arm portion, An occlusal force including a first pressure transmitting portion that is located between the tooth and the diaphragm portion and that applies the occlusal force at a right angle to the surface of the diaphragm portion via the pressure acting surface that is in contact with the outer surface of the diaphragm portion. Characterized by having a detection unit An occlusal dynamometer.
部又は一部をバネ材により形成し、上アーム部と下アー
ム部の後端同士を固着してなることを特徴とする請求項
１記載の咬合力計。2. The upper arm part and / or the lower arm part is wholly or partly formed of a spring material, and the rear ends of the upper arm part and the lower arm part are fixed to each other. The occlusal force meter according to 1.
動自在のヒンジ部により結合してなることを特徴とする
請求項１記載の咬合力計。3. The occlusal force meter according to claim 1, wherein the rear ends of the upper arm portion and the lower arm portion are connected to each other by a rotatable hinge portion.
して屈曲自在に結合することを特徴とする請求項１記載
の咬合力計。4. The occlusal force meter according to claim 1, wherein the occlusal force detecting portion and the main body portion are flexibly coupled via an elastic connecting portion.
は下アーム部の一方の後端に延長部を一体に設け、この
延長部の後端を本体部に結合することにより当該延長部
を弾性連結部として用いることを特徴とする請求項２又
は４記載の咬合力計。5. An extension part is integrally provided at a rear end of one of the upper arm part and the lower arm part formed of a spring material, and the rear end of the extension part is coupled to a main body part to elastically extend the extension part. The occlusal force meter according to claim 2 or 4, which is used as a connecting portion.
備えることを特徴とする請求項１記載の咬合力計。6. The occlusal force meter according to claim 1, further comprising a flexible protective case that covers the occlusal force detection portion.
ことを特徴とする請求項６記載の咬合力計。7. The occlusal force meter according to claim 6, wherein the protective case is made of vinyl chloride.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24835895A JP3522409B2 (en) | 1995-08-31 | 1995-08-31 | Occlusal force meter |
| DE19705569A DE19705569C1 (en) | 1995-08-31 | 1997-02-13 | Teeth engagement measuring device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24835895A JP3522409B2 (en) | 1995-08-31 | 1995-08-31 | Occlusal force meter |
| DE19705569A DE19705569C1 (en) | 1995-08-31 | 1997-02-13 | Teeth engagement measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0966048A JPH0966048A (en) | 1997-03-11 |
| JP3522409B2 true JP3522409B2 (en) | 2004-04-26 |
Family
ID=26033911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24835895A Expired - Fee Related JP3522409B2 (en) | 1995-08-31 | 1995-08-31 | Occlusal force meter |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3522409B2 (en) |
| DE (1) | DE19705569C1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4692701A (en) * | 2000-04-17 | 2001-10-30 | Makoto Nakao | Muscle pressure measuring instrument for mouth cavity, adapter for mouth cavity muscle pressure measuring instrument, and mouth piece for mouth cavity muscle pressure measuring instrument |
| EP1516595A1 (en) | 2003-09-18 | 2005-03-23 | Bruno Starek | Device for measuring the pressure between two pressed bodies |
| DE102011010768A1 (en) * | 2011-02-15 | 2012-08-16 | Hans-Werner Weisskircher | System for automatic and simultaneous calibration of pressure film sensor for measuring quantitative bite forces of human dentures, has handgrip element that is provided for holding carrier portion of pressure film sensor |
| KR102299357B1 (en) * | 2018-12-10 | 2021-09-07 | 고려대학교 산학협력단 | Masticatory diagnostics device using gummy bear |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57170704U (en) * | 1981-04-20 | 1982-10-27 | ||
| JPH0225379Y2 (en) * | 1985-01-16 | 1990-07-12 | ||
| JPH0646997B2 (en) * | 1988-01-25 | 1994-06-22 | 中国歯研株式会社 | Jaw position determining device |
| DE69313065T2 (en) * | 1992-10-15 | 1997-12-11 | Fuji Photo Film Co Ltd | Pressure sensitive recording layer |
-
1995
- 1995-08-31 JP JP24835895A patent/JP3522409B2/en not_active Expired - Fee Related
-
1997
- 1997-02-13 DE DE19705569A patent/DE19705569C1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE19705569C1 (en) | 1998-09-24 |
| JPH0966048A (en) | 1997-03-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4554927A (en) | Pressure and temperature sensor | |
| JP2605584Y2 (en) | Multi sensor | |
| US5978693A (en) | Apparatus and method for reduction of motion artifact | |
| JPS5921495B2 (en) | Capillary pressure gauge | |
| US5846211A (en) | Occlusal force-meter | |
| AU2011226874A1 (en) | Calibration system for a force-sensing catheter | |
| JP3522409B2 (en) | Occlusal force meter | |
| JP3495789B2 (en) | Portable pulse wave measuring device | |
| RU2342067C1 (en) | Device for arterial pressure measurement | |
| AU1213400A (en) | Sensing ear temperature, acoustic reflectance and chemical components in the ear | |
| EP0714629A4 (en) | Biological surface potential measuring device and diagnosing device | |
| JP3450507B2 (en) | Occlusal force meter | |
| FR2691253A3 (en) | Bourdon tube manometer pressure gauge with digital LCD e.g. blood pressure - connects end of tube via articulated linkage and lever mechanism to force sensor consisting of diaphragm and thick film resistance, which is coupled to A=D converter of integrated circuit. | |
| JPS62235534A (en) | Device for measuring force within contact-surface region between spectacle frame and head section of wearing person | |
| EP0953841A3 (en) | Breath monitoring apparatus | |
| JP3041401B2 (en) | Pulse wave measurement equipment | |
| JP2008168051A (en) | Heartbeat meter | |
| JPH046740Y2 (en) | ||
| JP2823848B2 (en) | Non-contact height measuring device | |
| JP3064354B2 (en) | Contact pressure sensor | |
| JPH0329691Y2 (en) | ||
| JPH0497738A (en) | Pulse wave detector | |
| JP3487919B2 (en) | Portable pulse wave measuring device | |
| RU2119779C1 (en) | Device for determination of pliability of oral cavity mucous membrane | |
| JPH0528309U (en) | Pulse meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20040121 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20040204 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |