JP4347069B2 - Airtightness inspection device - Google Patents
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- JP4347069B2 JP4347069B2 JP2004001543A JP2004001543A JP4347069B2 JP 4347069 B2 JP4347069 B2 JP 4347069B2 JP 2004001543 A JP2004001543 A JP 2004001543A JP 2004001543 A JP2004001543 A JP 2004001543A JP 4347069 B2 JP4347069 B2 JP 4347069B2
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Description
本発明は、携帯電話その他の比較的小型の防水型商品の気密性を、人手により、簡単、迅速、確実に行うための気密性検査装置の技術分野に属する。 The present invention belongs to the technical field of an airtightness inspection device for easily, quickly and reliably performing airtightness of a relatively small waterproof product such as a mobile phone by hand.
気密性或いは防水性の検査は通常、基準品用の気密室と、その基準品用気密室と同一容積、同一気密条件、同一加圧条件の被検査品用気密室とを設け、基準品用気密室へは、被検査品と同じ外観構造をした固体、即ちその周囲に気体圧力をかけても空気が中へ入りようのないものを基準品として収容し、被検査品気密室へは、検査対象品を収容し、両気密室とも密閉蓋をした後、同一の加圧装置から分岐した加圧空気を両気密室へ送り、同一の加圧状態にした後、給気を断ち、それぞれの室内圧力を測定し、その圧力差を検出して一定時間経過後の差値を測定する。
もし、被検査品の気密性が完全であれば基準品と同じであるから、2つの気密室内の圧力は同じであるから差圧は零ということになる。
For airtightness or waterproofness inspection, the standard product is usually equipped with an airtight chamber for the reference product, and an airtight chamber for the product to be inspected having the same volume, the same airtight conditions, and the same pressure conditions as the airtight chamber for the reference product. In the airtight chamber, a solid that has the same external structure as the product to be inspected, that is, a product that does not allow air to enter even if gas pressure is applied to its surroundings, is stored as a standard product. After storing the products to be inspected and sealing the airtight chambers in both airtight chambers, send the pressurized air branched from the same pressurizing device to the airtight chambers, put them in the same pressurized state, cut off the air supply, The pressure in the chamber is measured, the pressure difference is detected, and the difference value after a lapse of a certain time is measured.
If the inspected product is completely airtight, it is the same as the reference product, so the pressure in the two airtight chambers is the same, so the differential pressure is zero.
もし、気密室内になんらかの圧力の変化があるとしても、容積が同じで気密条件も、圧力条件も同じである2つの気密室内の圧力変化は同じであるから、両者の差をとることにより変化は相殺されて零になる。 Even if there is any pressure change in the airtight chamber, the pressure change in the two airtight chambers with the same volume, the same airtight condition, and the same pressure condition is the same. Canceled to zero.
以上に対して、被検査品の気密性が完全でない場合は、被検査品用気密室へ入れて室内を加圧すると被検査品内部へ空気が漏れ入って行き、その分だけ気密室の圧力は低下する。
一方基準品用気密室の方はそのようなことはないから、両気密室の圧力差をとると差圧が生じることとなる。
この差圧は、被検査品の内部へ空気が入り続けている間増加する。そして、この増加の程度は漏れ込みが大きい程大きくなる。
On the other hand, if the airtightness of the product to be inspected is not perfect, when it is put into the airtight chamber for the inspected product and the chamber is pressurized, air leaks into the inspected product and the pressure in the airtight chamber is increased by that amount. Will decline.
On the other hand, there is no such thing in the airtight chamber for the reference product, so that if the pressure difference between the two airtight chambers is taken, a differential pressure is generated.
This differential pressure increases while air continues to enter the inspected product. The degree of this increase increases as the leakage increases.
従って、両気密室への加圧給気を絶った後、一定時間後における差圧の大きさを知ることにより、被検査品の内部への漏れ込みの程度が分かることになる。
そこで、一定時間後における差圧に対し、合否判定の基準値を設け、基準値以上であれば気密性不良として不合格とし、基準値未満であれば気密性良として合格としている。
Therefore, by knowing the magnitude of the differential pressure after a certain period of time after the pressurized air supply to both the airtight chambers is stopped, the degree of leakage into the inspected product can be known.
Therefore, a reference value for pass / fail judgment is provided for the differential pressure after a certain time, and if it is equal to or higher than the reference value, it is rejected as an airtight failure, and if it is less than the reference value, it is accepted as good airtightness.
従来、以上のような検査を行う検査装置としては、大きさや、形状が種々異なる検査対象品に対応し得るように気密室の大きなものが汎用として用いられて来た。
また、大型であるため、密閉蓋の開閉も人手操作によるものではなく、自動エアシリンダー等で行われるようになっており、基準品気密室の密閉蓋と被検査品気密室の密閉蓋も別々に開閉されるようになっている。
Conventionally, as an inspection apparatus for performing the inspection as described above, an apparatus having a large hermetic chamber has been used as a general purpose so as to be compatible with products to be inspected having different sizes and shapes.
In addition, because of its large size, opening and closing of the sealing lid is not performed manually, but is performed by an automatic air cylinder or the like. The sealing lid of the standard product hermetic chamber and the sealed lid of the inspected product hermetic chamber are separate. It is designed to open and close.
また、気密室が設けられている本体と密閉蓋を連結するヒンジの構造は、回動軸に上下の遊動性がなく、一方、本体側の気密室開口周囲の面では、気密を得るためのOリングを嵌める溝を設けている面が密閉蓋と接する面となっている(以上のところは、出願人が実地に見聞し或いは体験したところであり、特に公知文献の存在は知らない)。 Moreover, the structure of the hinge that connects the main body provided with the hermetic chamber and the hermetic lid has no up-and-down playability on the rotating shaft, while the surface around the opening of the hermetic chamber on the main body side is airtight. The surface on which the groove for fitting the O-ring is provided is a surface in contact with the sealing lid (the above is what the applicant has seen or experienced in practice, and does not particularly know the existence of known literature).
一方、近時、携帯電話、水中時計、小型ラジオ、小型テレビ等(携帯電話等という)アウトドア或いは水中で用いられる商品が多くなり、これらの商品はアウトドア或いは水中ということで必然的に防水性、即ち、気密性が必要とされることになる。
そこで、当然製品メーカーとしては、気密性を持たせる設計を行い、製品の出荷検査として気密性検査を行って出荷しなければならないという現状にある。
しかも、これらの商品は大衆民需品として大量に出荷されるため、検査も大量の検査を短時間に行わなければならないという状況にある。
On the other hand, recently, mobile phones, underwater watches, small radios, small TVs, etc. (referred to as mobile phones) are increasingly used outdoors or underwater, and these products are necessarily waterproof because they are outdoors or underwater. That is, airtightness is required.
Therefore, as a matter of course, as a product manufacturer, it is necessary to carry out a design that provides airtightness, and to perform a hermeticity inspection as a product shipping inspection before shipping.
In addition, since these products are shipped in large quantities as consumer goods, a large amount of inspection must be performed in a short time.
しかるに、従来の気密性検査装置は、前述のように、前記携帯電話等を検査するには気密室が大き過ぎ、所定の圧力まで加圧するのに時間がかかり、携帯電話のような大量生産品を手早く検査するには不向きであるという問題がある。
このように大型であるうえ、密閉蓋の開閉を自動装置で行わせたりしているので装置コストが高いという問題もある。
However, as described above, the conventional airtightness inspection apparatus has a large airtight chamber for inspecting the mobile phone or the like, and takes a long time to pressurize to a predetermined pressure. There is a problem that it is not suitable for quick inspection.
In addition to being large in size, there is a problem that the cost of the apparatus is high because the sealing lid is opened and closed by an automatic apparatus.
また、基準品用気密室の密閉蓋と、被検査品用気密室の密閉蓋の開閉機構が別々になっているために、密閉蓋を閉じたときの密閉度合が常に全く同一とは言えず、もし差がある場合には差圧に誤差を生じ、検査の信頼性に疑義を生じる可能性があるという問題がある。 In addition, the open / close mechanism of the hermetic chamber for the standard product and the hermetic chamber for the product to be inspected is separate, so the degree of sealing when the hermetic lid is closed is not always the same. If there is a difference, there is a problem that an error occurs in the differential pressure, which may cause doubt in the reliability of the inspection.
更には、本体と密閉蓋を連結するヒンジの回動軸に上下の遊動性がないため、密閉蓋を閉じる際に、Oリングをヒンジに近い方から押し付けて行くことになり、Oリングにヒンジとは反対側の方へ押し出すような好ましくない力がかかるとともに、密閉蓋を本体に押し付けて行った場合、その下面の最終位置はOリング溝を設けている面ということになるが、Oリングが太目の場合には、その面まで達するのに非常に大きな力が必要であるとか、そのために締め具合にばらつきを生ずるとか、時によってはOリングを溝中に圧縮し切れずに密閉蓋の下面とOリング溝周囲の面との間にOリングの一部がはみ出してしまうという問題がある。
本発明は、以上のような問題点を解決した気密性検査装置の提供を課題とするものである。
Furthermore, since the pivot shaft of the hinge connecting the main body and the sealing lid is not movable up and down, when closing the sealing lid, the O-ring is pressed from the side closer to the hinge, and the hinge is attached to the O-ring. When an undesired force is applied to the side opposite to the side, and when the sealing lid is pressed against the main body, the final position of the lower surface is the surface on which the O-ring groove is provided. Is thick, it may require a very large force to reach the surface, which may cause variations in tightness, and sometimes the O-ring is not fully compressed into the groove and the sealing lid There is a problem that a part of the O-ring protrudes between the lower surface and the surface around the O-ring groove.
An object of the present invention is to provide an airtightness inspection apparatus that solves the above problems.
本発明の気密性検査装置は、上記の課題を解決するために下記の各構成を有する。
本発明の構成は、本体に基準品用気密室と被検査品用気密室が隣り合わせて設けられており、両気密室に対する密閉蓋は一体構造で、本体にヒンジで手動開閉が可能に取り付けられており、ヒンジの構造が、本体と密閉蓋のうち一方には回動軸を、他方には密閉蓋が本体に被せられた位置で上下遊動が可能な上下方向長穴の軸受けを有する構造であり、密閉蓋には、密閉蓋を閉じたときに、両気密室の開口位置の間の均衡な位置に、蓋を本体に締め付ける手動ねじを有し、本体には、各気密室の各開口の周囲にOリングが溝に嵌めて設けられ、密閉蓋を閉じたときその下面が接する本体側の蓋当接面が、蓋をする前の状態で、Oリングの溝からの突出高より低く、Oリング溝が設けられている面より高く、密閉蓋を閉じた際に前記手動ねじを締め込んで密閉蓋を本体に密閉圧着させるねじ穴を有することを特徴とする気密性検査装置である。
In order to solve the above problems, the airtightness inspection apparatus of the present invention has the following configurations.
In the configuration of the present invention , a reference product airtight chamber and an inspected product airtight chamber are provided next to each other in the main body. The hinge has a structure in which one of the main body and the sealing lid has a pivot shaft, and the other has a bearing with a vertically elongated hole that can move up and down at a position where the sealing lid is placed on the main body. The sealing lid has a manual screw for tightening the lid to the main body at a balanced position between the opening positions of the two hermetic chambers when the sealing lid is closed, and the main body includes each opening of each hermetic chamber. An O-ring is fitted around the groove, and the lid-contact surface on the main body side that comes into contact with the lower surface when the sealing lid is closed is lower than the protruding height of the O-ring from the groove before the lid is closed. , higher than the surface of O-ring groove is provided, the manual screw when closed sealing lid The fit crowded by the sealing lid is airtight inspection apparatus characterized by having a threaded bore to be sealed crimped to the body.
以上のように、本発明装置の第1の構成においては、基準品用気密室および被検査品用気密室を携帯電話等の大きさに適合した大きさとすることができ、加圧時間が不必要に長くなるということもなく、密閉蓋の開閉も手動で行うことができるとともに、基準品用気密室および被検査品用気密室の密閉蓋が一体構造でできているため、1開閉操作で両気密室の開閉ができ、密閉を得るための手動の締め付けねじが両気密室の開口位置に対して均衡な位置に1個設けられているため、1つのねじの手動締め付け操作で両気密室に均等な密閉状態が得られるという利点がある。 As described above, in the first configuration of the device of the present invention, the airtight chamber for the reference product and the airtight chamber for the product to be inspected can be sized to suit the size of the mobile phone or the like, and the pressurization time is not required. The lid can be manually opened and closed without being lengthened as necessary, and the sealing lid for the standard product airtight chamber and the airtight chamber for the inspected product is made of a single structure, so that it can be opened and closed in one operation. Both airtight chambers can be opened and closed, and one manual clamping screw is provided at a position balanced with respect to the opening position of both airtight chambers, so that both airtight chambers can be operated by manually tightening one screw. There is an advantage that a uniform sealed state can be obtained.
また、密閉蓋取付けのヒンジが密閉蓋の上下遊動可能な構造であるため、ヒンジの回動軸が無遊動構造の場合に較べて、密閉蓋を下ろしたときの、気密室開口周囲の密閉用Oリングに対する加圧がOリング全周に渡って均等になり、従ってその後の手動ねじの締め付けによるOリングに対する加圧も均等になり、好ましい密閉状態が得られるという利点がある。 In addition , the hinge attached to the hermetic lid is structured so that the hermetic lid can move up and down. The pressure applied to the O-ring is uniform over the entire circumference of the O-ring, and therefore, the pressure applied to the O-ring by the subsequent tightening of the manual screw is also uniform, and there is an advantage that a favorable sealed state can be obtained.
更に、本体の上面は、Oリング溝を設けている面より高くなっているので、密閉蓋を手動ねじによって締め付けたとき密閉蓋の下面はこの高くなっている面に当接して停止するので、従来のようにOリングを溝を設けている面まで締めつける場合のように大きな力を必要とせず、停止する位置も一定し、溝を設けている面と密閉蓋下面との間には前記高さ分の空間があるためOリングも潰れ過ぎになりにくく、溝からはみ出すこともなく良好な密閉状態が得られるという利点がある。 Furthermore , since the upper surface of the main body is higher than the surface provided with the O-ring groove, when the sealing lid is tightened with a manual screw, the lower surface of the sealing lid comes into contact with the raised surface and stops. Unlike the conventional case, a large force is not required as in the case where the O-ring is tightened to the surface where the groove is provided, the stopping position is constant, and the height between the surface where the groove is provided and the bottom surface of the sealing lid is high. Since there is enough space, the O-ring is not easily crushed, and there is an advantage that a good sealed state can be obtained without protruding from the groove.
本発明気密性検査装置の操作は、密閉蓋をあけ、基準品用気密室には、基準品を入れ、被検査品用気密室には検査対象を入れて密閉蓋を閉じ、加圧給気し、所定圧力になったところで給気を遮断し、遮断後所定時間後における両気密室の圧力差が合否の基準値を越えたか否かを見て、気密性の合否を判定する。1個の検査が終わったなら密閉蓋を開け、被検査品を取り出し、次の検査品を入れて再び同じ操作を繰り返し、以後手早く同様の手順を繰り返して、大量の商品の検査を行うというものである。従って、できるだけ簡単操作で行えるようにする必要がある。 The airtightness inspection device of the present invention is operated by opening the sealing lid, placing the reference product in the airtight chamber for the reference product, placing the inspection object in the airtight chamber for the product to be inspected, closing the sealing lid, Then, when the predetermined pressure is reached, the supply of air is shut off, and whether or not the airtightness is acceptable is determined by checking whether or not the pressure difference between the two airtight chambers exceeds a reference value for pass / fail after a predetermined time. When one inspection is finished, open the sealing lid, take out the inspected item, insert the next inspection item, repeat the same operation again, and then repeat the same procedure quickly to inspect a large number of products It is. Therefore, it is necessary to make it possible to perform it as easily as possible.
従って、まず気密室の大きさは検査対象の形状寸法に合わせたものとする。これにより加圧のための時間を極力短くすることができる。
また、気密室への検査品の出し入れの際つかみ易くするために、入れた状態で上部が開口面より出るようにしておくのがよい。その分は密閉蓋の方に凹部を設けることになる。
密閉蓋の締め付け用の手動ねじは、握りを大きくして力が入るようにし、密閉に必要な回転数は多くならないようにするのが望ましい。
Therefore, first, the size of the hermetic chamber is assumed to match the shape and dimension of the inspection object. Thereby, the time for pressurization can be shortened as much as possible.
Moreover, in order to make it easy to grasp the inspection product when it is taken in and out of the hermetic chamber, it is preferable that the upper portion protrudes from the opening surface in the inserted state. For that amount, a recess is provided on the sealing lid.
It is desirable that the manual screw for tightening the sealing lid is designed so that force is applied by enlarging the grip, and the number of rotations required for sealing is not increased.
検査品を入れて手動ねじの密閉操作が終った後、加圧給気、所定圧での給気遮断、気密室の圧力測定、差圧の検出、基準値との比較、合否の表示等一連の動作は、押釦1つを押すだけで自動的に進行するようにするのが最良である。 After inspecting the product and sealing the manual screw, pressurized air supply, air supply shut-off at a predetermined pressure, pressure measurement in the airtight chamber, detection of differential pressure, comparison with reference values, pass / fail display, etc. It is best to automatically advance the operation by simply pressing one push button.
以下、本発明の気密性検査装置の実施例を図面を参照して説明する。
図1は、本発明実施例装置の密閉蓋を開いた状態の上面図であり、図2は図1を右側から見た側面図である。
Embodiments of an airtightness inspection apparatus according to the present invention will be described below with reference to the drawings.
FIG. 1 is a top view of a device according to an embodiment of the present invention in a state where a sealing lid is opened, and FIG. 2 is a side view of FIG. 1 viewed from the right side.
本体1には、基準品用気密室2と被検査品用気密室3が隣り合わせて設けられている。両気密室は同一容積である。
両気密室の周囲にはそれぞれ同心円状にOリング溝9が設けられており、密閉用のOリング7が嵌め込まれている。
The main body 1 is provided with a reference product airtight chamber 2 and an inspected product airtight chamber 3 adjacent to each other. Both hermetic chambers have the same volume.
An O-
検査を行うときは、基準品用気密室2へ基準品を入れ、被検査品用気密室3へ検査対象品を入れて、密閉蓋4を下ろして、手動ねじ6の先端をねじ穴8に螺合させて締め付け、密閉蓋4の下面がOリング7を押すように密着して気密性を保つ。
その後図示されていない1つの加圧装置から分岐して加圧空気を両気密室へ送り、同一の加圧状態にした後、給気を断つ。そして両気密室の圧力を測定し、その圧力差を検出し、一定時間後の差圧が合否の基準値を越えたか否かによって検査対象品の気密性検査による合否を定める。
これらのことは、図示されていない装置によって行われる。
When inspecting, place the reference product in the airtight chamber 2 for the reference product, put the product to be inspected in the airtight chamber 3 for the product to be inspected, lower the sealing lid 4, and insert the tip of the manual screw 6 into the screw hole 8. It is screwed and tightened, and the lower surface of the sealing lid 4 is brought into close contact with the O-ring 7 so as to keep airtightness.
Thereafter, the air is branched from one not-shown pressurizing device, and pressurized air is sent to both the airtight chambers to bring them into the same pressurized state, and then the air supply is cut off. Then, the pressures of the two hermetic chambers are measured, the pressure difference is detected, and pass / fail by the air tightness inspection of the product to be inspected is determined depending on whether or not the differential pressure after a certain time exceeds the pass / fail reference value.
These are performed by a device not shown.
以上のような検査を正確に行うためには、両気密室の圧力状態が同一でなければならない。そこで本発明では、両気密室が隣接して設けられ、1個の密閉蓋4で両気密室を密閉するようにするとともに、密閉蓋が、2つの気密室に対して同じように締め付け密着されるように、手動ねじ6およびねじ穴8の位置は、両気密室の開口位置に対して均衡のとれた位置に設けられている。図1では丁度中央になっている。
このように、1操作で、基準品用と被検査品用両方の開閉密閉操作が行える。
In order to accurately perform the above inspection, the pressure states of both hermetic chambers must be the same. Therefore, in the present invention, both the hermetic chambers are provided adjacent to each other, and both the hermetic chambers are hermetically sealed by one hermetic lid 4, and the hermetic lid is similarly tightened and closely attached to the two hermetic chambers. As described above, the positions of the manual screw 6 and the screw hole 8 are provided at positions balanced with respect to the opening positions of the both hermetic chambers. In FIG. 1, it is exactly the center.
As described above, the opening and closing operation for both the reference product and the product to be inspected can be performed with one operation.
また、密閉蓋4を本体1へ回動自在に連結しているヒンジ5には、密閉蓋4を降ろした時に密閉蓋4が上下方向に遊動が可能なように長穴10(図2参照)が設けられている。
これにより、密閉蓋4を降ろしてOリング7の上に載ったときに、Oリング7にかかる重力がOリング7のヒンジ5寄りの方とヒンジ5から遠い方の部分とで均一な力であり、且つ密閉蓋4の重力のみによる垂直の力となり、手動ねじ6で締めた場合Oリング7全周に渡って均一な力が加わり、確実な密閉性が得られることになる。
もし、ヒンジ5が長穴でなく、密閉蓋4の開閉回動軸が固定である場合には、密閉蓋4を降ろして行く際に、Oリング7のヒンジ5に近い方から押し付けられて行き、このとき密閉蓋4の下面はまだ完全に水平になっておらず傾斜しているから、Oリング7に対し若干ヒンジ5から遠い方へ押しやるような力が加わり、好ましくない。
本発明では、ヒンジ5に長穴10を設けて上下遊動性を持たせたので、このような問題はなくなる。なおヒンジ5の構造は、図2に示すものに限定されず密閉蓋4に遊動性をもたせられるものであればよい。
In addition, the hinge 5 that rotatably connects the sealing lid 4 to the main body 1 has a long hole 10 (see FIG. 2) so that the sealing lid 4 can move up and down when the sealing lid 4 is lowered. Is provided.
As a result, when the sealing lid 4 is lowered and placed on the O-ring 7, the gravity applied to the O-ring 7 is a uniform force between the portion near the hinge 5 and the portion far from the hinge 5 of the O-ring 7. There is a vertical force only due to the gravity of the sealing lid 4, and when tightening with the manual screw 6, a uniform force is applied over the entire circumference of the O-ring 7, and a reliable sealing performance is obtained.
If the hinge 5 is not a long hole and the opening / closing rotation shaft of the sealing lid 4 is fixed, when the sealing lid 4 is lowered, the O-ring 7 is pushed from the side closer to the hinge 5. At this time, since the lower surface of the sealing lid 4 is not yet completely horizontal and is inclined, a force that pushes the O-ring 7 slightly away from the hinge 5 is applied, which is not preferable.
In the present invention, the elongated hole 10 is provided in the hinge 5 so as to have the up-and-down mobility, so that such a problem is eliminated. The structure of the hinge 5 is not limited to that shown in FIG. 2, and any structure may be used as long as the sealing lid 4 can be provided with mobility.
更に、本発明では本体1の上面でOリング7の外側スペース複数箇所に蓋受け面11が設けられている。
この蓋受け面11の高さは、Oリング溝9が設けられている面より高く、Oリング溝9に嵌め込まれたOリング7の高さよりも低い高さに設定されている。
Further, in the present invention, lid receiving surfaces 11 are provided at a plurality of locations on the outer surface of the O-ring 7 on the upper surface of the main body 1.
The height of the lid receiving surface 11 is set to be higher than the surface where the O-
図3は蓋受け面とOリングの高さ関係を示す説明図である。
(a)は気密室の中心を通る縦断面を示す略図であり、(b)は(a)の左側の蓋受け面11、Oリング溝9およびOリング7の配置拡大図である。
Oリング7の高さが蓋受け面11より高くなっている。この高さの差が密閉蓋4を降ろして手動ねじ6を締めたときのOリング7の潰ししろになる。
(c)は密閉蓋4を密閉したときの図で、(d)はその左側拡大図である。
Oリング溝9が設けられている面12と密閉蓋4の下面との間には、蓋受け面12の高さ分の空隙がある。
FIG. 3 is an explanatory view showing the height relationship between the lid receiving surface and the O-ring.
(A) is the schematic which shows the longitudinal cross section which passes along the center of an airtight chamber, (b) is arrangement | positioning enlarged drawing of the cover receiving surface 11, the O-ring groove |
The height of the O-ring 7 is higher than the lid receiving surface 11. This difference in height becomes the crushing distance of the O-ring 7 when the sealing lid 4 is lowered and the manual screw 6 is tightened.
(C) is a figure when the sealing lid 4 is sealed, and (d) is an enlarged view of the left side.
Between the surface 12 where the O-
以上のような構造となっているので、密閉蓋4を閉じて手動ねじ6を締めた場合の密閉蓋4の停止位置は蓋受け面11で規定され、常に一定の位置ということになり、従ってOリング7の潰れ具合も常に一定ということになる。もし、蓋受け面11がなく面12だけの場合には、Oリング7をOリング溝9の中へすべて押し潰して入れてしまうまで手動ねじ6を回しがちになるが、そのためには相当力を入れて回さねばならず、その結果締め具合にばらつきを生じたり、場合によっては、Oリング7がOリング溝9に入り切らずに密閉蓋4の下面と面12の間に一部はみだし挟まれる不完全な状態も発生し得ることにもなるが、本発明においては蓋受け面11を設けたことにより、適度で一定した潰し具合を実現でき安定した密閉状態を得ることができる。
Since the structure is as described above, the stop position of the sealing lid 4 when the sealing lid 4 is closed and the manual screw 6 is tightened is defined by the lid receiving surface 11 and is always a constant position. The degree of crushing of the O-ring 7 is always constant. If the cover receiving surface 11 is not provided but only the surface 12, the manual screw 6 tends to be turned until the O-ring 7 is completely crushed into the O-
1 本体
2 基準品用気密室
3 被検査品用気密室
4 密閉蓋
5 ヒンジ
6 手動ねじ
7 Oリング
8 ねじ穴
9 Oリング溝
10 長穴
11 蓋受け面
12 面
DESCRIPTION OF SYMBOLS 1 Main body 2 Airtight chamber for reference products 3 Airtight chamber for products to be inspected 4 Sealing lid 5 Hinge 6 Manual screw 7 O-ring 8 Screw hole 9 O-ring groove 10 Long hole 11 Cover receiving surface 12
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JP2004001543A JP4347069B2 (en) | 2004-01-07 | 2004-01-07 | Airtightness inspection device |
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JP2004001543A JP4347069B2 (en) | 2004-01-07 | 2004-01-07 | Airtightness inspection device |
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JP2005195439A JP2005195439A (en) | 2005-07-21 |
JP4347069B2 true JP4347069B2 (en) | 2009-10-21 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102466551A (en) * | 2010-11-19 | 2012-05-23 | 亚旭电脑股份有限公司 | Waterproof testing device and method thereof |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5596523B2 (en) * | 2010-12-07 | 2014-09-24 | 株式会社フクダ | Leak inspection device |
KR101197704B1 (en) * | 2012-05-09 | 2012-11-06 | 김동언 | Apparatus inspecting waterproof of mobile |
JP6040736B2 (en) * | 2012-11-30 | 2016-12-07 | 富士電機機器制御株式会社 | Leak inspection jig and leak inspection apparatus |
JP6317103B2 (en) * | 2013-12-26 | 2018-04-25 | 株式会社フクダ | Leak test apparatus and method |
DE102015214345A1 (en) | 2015-07-29 | 2017-02-02 | Robert Bosch Gmbh | Test device for checking the tightness of containers and a method therefor |
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2004
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102466551A (en) * | 2010-11-19 | 2012-05-23 | 亚旭电脑股份有限公司 | Waterproof testing device and method thereof |
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