JP4237138B2

JP4237138B2 - Fountain pen magnifier

Info

Publication number: JP4237138B2
Application number: JP2004513826A
Authority: JP
Inventors: 昌宏寺崎
Original assignee: TERASAKI INDUSTRIES CO., LTD.
Current assignee: TERASAKI INDUSTRIES CO., LTD.
Priority date: 2002-06-14
Filing date: 2003-06-12
Publication date: 2009-03-11
Anticipated expiration: 2023-06-12
Also published as: JPWO2003107069A1; WO2003107069A1

Description

発明の背景
技術分野
本発明は、日常随時細かな活字等の対象物の拡大視が望まれるとき使用される拡大鏡に係わる。
従来の技術
日常時随時細かな活字等の拡大視が望まれるとき使用される拡大鏡としては、レンズに柄のついた所謂虫めがねに始まり、近年ではレンズを折り畳んで収納するケースがレンズを取り出したときに柄の働きをする折り畳み式拡大鏡等種々のデザインのものが提案されまた使用されている。
折り畳み式拡大鏡はポケットに収納できるので、常に忘れずにポケットに入れて持ち歩くよう気をつけていれば、いつでも必要な時拡大視の要を満たすことができるが、ポケット収納では一度使用したとき、その場に置き忘れやすく、また夏季の上着を着ていないときには、携帯しにくい。
一方、拡大鏡としてはプラスチック製棒状波形レンズの如き簡易なものもあり、これらはシャツの胸ポケットにも収納できるが、波形レンズを裸のまま胸ポケットに入れておくと波形面が埃を捕捉してその透明度が急速に低下する。プラスチック製棒状波形レンズは櫛と同様に収納ケースに入れておくこともできるが、使用に当たってー々レンズ棒を収納ケースより取り出すのは面倒であり、またやがて収納ケースが何処かに置き去られるおそれがある。
発明の概要
本発明は、日常生活に於いて随時細かな活字等の拡大視を望むとき常に埃の付着していない清透な状態にて手に入るよう身につけておくことができ、使用に当ってケーの除去の如き面倒でまた復元が疎かにになりがちな操作を要しない拡大鏡を提供することを課題としている。
上記の課題を解決するものとして、本発明は、万年筆のシャフトとキャップの組合せに類似の軸体と頭体の組合せを有し、前記軸体はその長手方向に沿って配置された一対の透視長孔を有しており、前記軸体内には該軸体の透視長孔に整合する一対の透視長孔を備えた筒体が前記軸体に対し同心に回動し得るよう配置されており、前記筒体内にはその一対の透視長孔に整合した一対のレンズ部を含むレンズ体が装着されており、前記筒体と前記レンズ体とは前記頭体が前記軸体に対し共通の中心軸線の周りに回動されることにより前記頭体に連れて同時に前記軸体に対し共通の中心軸線の周りに回動し、両者の間の相対的回動角が９０度変化する毎に、該筒体の一対の透視長孔と前記一対のレンズ部とが前記軸体の一対の透視長孔に整合する状態と、前記軸体の一対の透視長孔が前記筒体の非透視長孔部により塞がれる状態とが交互に生ずるようになっていることを特徴とする万年筆型拡大鏡を提案するものである。
前記軸体は円筒状の開口端を有し、該円筒状開口端にはその内側を縁取る環状部材が装着されており、前記頭体は前記環状部材の内側に挿入されてこれに係合する首部を有し、該首部には第一のクリップ部とこれより更に前記軸体内へ延在する第二のクリップ部とが設けられており、前記頭体は前記第一のクリップ部にて前記環状部材を介して前記軸体に係合した位置に保持され、前記第二のクリップ部にて前記レンズ体に係合してこれを回動させるようになっていてよい。
前記第一のクリップ部は前記軸体に対し前記頭体が回動するとき前記環状部材の内周面に沿って摺動し、前記環状部材の内周面は前記軸体に対し前記頭体が９０度回動する毎に前記第一のクリップ部を捕捉してその回動抵抗を増大させるクリックストップ手段を備えていてよい。
前記第二のクリップ部は一対の弾力的に拡がる脚端を成し、前記レンズ体のテーパ状端部をその間に弾力的に挟み込む態様にて該レンズ体を回転させるようこれと係合するようになっていてよい。
拡大鏡が万年筆のシャフトとキャップの組合せに類似の軸体と頭体の組合せを有し、前記軸体はその長手方向に沿って配置された一対の透視長孔を有しており、前記軸体内には該軸体の透視長孔に整合する一対の透視長孔を備えた筒体が前記軸体に対し同心に回動し得るよう配置されており、前記筒体内にはその一対の透視長孔に整合した一対のレンズ部を含むレンズ体が装着されており、前記筒体と前記レンズ体とは前記頭体が前記軸体に対し共通の中心軸線の周りに回動されることにより前記頭体に連れて同時に前記軸体に対し共通の中心軸線の周りに回動し、両者の間の相対的回動角が９０度変化する毎に、該筒体の一対の透視長孔と前記一対のレンズ部とが前記軸体の一対の透視長孔に整合する状態と、前記軸体の一対の透視長孔が前記筒体の非透視長孔部により塞がれる状態とが交互に生ずるようになっていれば、万年筆状の細長い形態を利用して両眼に対し一対のレンズを揃えることにより、両眼を用いて立体感のある拡大視を行なうことができる拡大鏡を、嵩張ることなく、万年筆と同様に常時シャツの胸ポケットに安定した状態に収納しておくことができる形態にて得ることができる。また、拡大鏡の収納時には前記軸体に対する前記頭体の回動位置を使用時より９０度回動させておくことにより、前記軸体の一対の透視長孔は前記筒体の非透視長孔部により塞がれるので、その内部に収納されたレンズ体は露呈されず、埃等による汚染から良好に保護される。
万年筆のシャフトとキャップに類似の態様に組み合わされた前記軸体と前記頭体とを、拡大鏡の使用開始時と使用終了時に９０度だけ相互にひねる操作は、例えば従来の収納ケース付きレンズと比較すれば、拡大鏡の使用にあたって収納ケースよりレンズを取り出し、一時不要となりまた邪魔になる収納ケースを始末し、拡大鏡の使用が終わったときには収納ケースを改めて確認してその中にレンズを挿入する操作に比して遙に簡便であり、また拡大鏡の使用中に収納ケースが物陰に隠れて一時的にまたは半永久的に紛失状態となるような不便を生ずることもない。
前記軸体が円筒状の開口端を有し、該円筒状開口端にはその内側を縁取る環状部材が装着されており、前記頭体は前記環状部材の内側に挿入されてこれに係合する首部を有し、該首部には第一のクリップ部とこれより更に前記軸体内へ延在する第二のクリップ部とが設けられており、前記頭体は前記第一のクリップ部にて前記環状部材を介して前記軸体に係合した位置に保持され、前記第二のクリップ部にて前記レンズ体に係合してこれを回動させるようになっていれば、一対のレンズ部を有するレンズ体を万年筆のシャフトのような物体内に何時でも容易に使用可能に収納することができ、また非使用時には一対のレンズ部が外部に露呈されないよう周りから遮断された状態に保持する構造を容易に達成することができる。
前記第一のクリップ部が前記軸体に対し前記頭体が回動するとき前記環状部材の内周面に沿って摺動し、前記環状体の内周面は前記軸体に対し前記頭体が９０度回動する毎に前記第一のクリップ部を捕捉してその回動抵抗を増大させるクリックストップ手段を備えていていれば、拡大鏡を収納状態と使用状態との間に切り換える操作が容易に、快適に、確実に達成される。
前記第二のクリップ部が一対の弾力的に拡がる脚端を成し、前記レンズ体のテーパ状端部をその間に弾力的に挟み込む態様にて該レンズを回転駆動するようこれと係合するようになっていれば、前記軸体内にその開口端より前記筒体と前記レンズ体を挿入し、その後該開口端に前記環状部材を装着し、次いで前記頭体の首部を前記環状部材を通して前記軸体内に挿入するだけで前記頭体にてレンズを回転させるよう両者を連結することができる。
好ましい実施態様の説明
添付の図面に於ける図１は、本発明による万年筆型拡大鏡の一つの実施例を示す側面図である。図は上記の軸体に対し上記の頭体が拡大鏡の使用状態をなすように回動された状態を示している。図に於いて、１が軸体であり、２が頭体である。頭体２は拡大鏡を軸体１の部分にてシャツの胸ポケットに収納した際にポケットの上布の上縁を軸体１との間に挟んでその収納状態を安定化させる万年筆に於けると同様の外クリップ３を備えている。４および５は軸体１に設けられた一対の透視長孔である。但し、ここで一対とは透視長孔としてであり、軸体１に明けられた孔としては１つの透視長孔に対し軸体の直径方向に対向して２つの孔が明けられているので、孔の合計は４つである。透視長孔４および５の周縁に沿って描かれた一点鎖線による長円状の輪郭は軸体１内に収められているレンズ体の一対のレンズ部を示している。尚、軸体１の端部（図にて右端）に丸みをもたせる半球状の突出部は軸体と一体に形成されても或いは別部材の付加によって形成されてもよい。
図２は、図１に示す万年筆型拡大鏡の軸体１の部分の内部構造を示すべくこの部分を縦断面にして示す図である。そして図３は図２に縦断面にて示されている部分の両端部を拡大して示す図である。
これらの図より理解される通り、図示の実施例に於いては、軸体１は図にて右端が閉じられた比較的薄い肉厚の円筒状をなしており、例えばアルミ合金等の軽い金属材または合成樹脂材より作られていてよい。軸体１内には、それがなす円筒体の内周面に軽く接触して沿うような円筒状外周面を有する筒体８が設けられている。筒体８は合成樹脂材より作られていてよい。筒体８にはそれが軸体１に対し所定の回動位置にあるとき軸体１の透視長孔４および５に整合する一対の透視長孔９および１０が設けられている。透視長孔９および１０も筒体８に明けられ孔としては４つである。筒体８の右端は、図示の実施例に於いては、別部材として構成された蓋体１１により閉じられている。蓋体１１は筒体８の端部の周縁の内側に沿う直径方向に対向した２カ所に筒体８内に延在する円弧状の脚部１２を備えており、これらの部分にて筒体８に安定して組み合わされると同時に後述のレンズ体の一端を保持している。蓋体１１の外面には筒体８を軸体１内にて回動させることを容易にする枢支点となる球面状突起１３が形成されている。
筒体８内には上述の一対のレンズ部６および７を備えた棒状のレンズ体１４が収められている。レンズ体１４の一対のレンズ部６および７は、それぞれが個別の凸レンズをなすものであり、或いはこれを模した波形レンズであるのが好ましい。レンズ体１４の図に於ける右端にはテーパ部１５が形成されており、レンズ体１４が蓋体１１へ向けて押圧されたとき、このテーパ部にて蓋体１１の一対の脚部１２に楔係合することにより、レンズ体１４は筒体８と一体となって軸体１内に回動するようになっている。尚、脚部１２には図示の実施例の如くレンズ体のテーパ部１５を受け入れる切欠き１６が形成されていてよい。
軸体１の図にて左方に於ける開口端には、僅かに弾力性を有することにより軸体１の開口端の内側に弾力的に締り係合するよう構成された半硬質樹脂材よりなる環状部材１７が装着されている。そしてこの環状部材内にそれを貫通するように頭体２の首部１８が嵌め込まれ、その一部に直径方向に対向して設けられた一対のクリップ部１９が環状部材１７の内周面に沿って設けられた円環状溝２０に係合することにより、頭体２は軸体１に対しに図示の如き装着位置に保持されるようになっている。円環状溝２０にはそれに沿って等間隔に隔置された４カ所に窪み２１が設けられており、クリップ部１９の先端がこれらの窪みの一つに係合したときには、そこに軽く係止されることによりクリックストップ感が生じ、軸体１に対する頭体２の回動位置が図１〜３に示す位置にある使用状態と、これより９０度ずれた収納状態とが明確に判別されるようになっている。
頭体２の首部１８にはまた、クリップ部１９よりも更に軸体１内へ延在し直径方向に対向する一対のクリップ部２２が設けられている。これら一対のクリップ部２２はその間の間隔が弾力的に開く一対の脚端をなしており、頭部２がその首部１８にて環状部材１７を装着された軸体１の開口端に装着されたとき、該一対の脚端間にレンズ体１４の図に於ける左端に形成されたテーパ部２３を弾力的に挟み込み、これによって頭体２の回動によりレンズ体１４を筒体８ごと回転駆動する両者間のトルク伝達係合を達成するようになっている。クリップ部２２には図示の実施例に於ける如くテーパ部２３を受け入れる切欠き２４が形成されていてよい。
図４は、上記の如き頭体２とレンズ体１４および筒体８間のトルク伝達係合を伴って軸体１に対し頭体２が図１に示す状態から９０度回動された状態を示す同様の側面図である。この状態では軸体１の一対の透視長孔４および５は筒体８の透視長孔９および１０が形成されていない非透視長孔部２５により塞がれるており、レンズ体１４は外部に露呈されないようになっている。
かくして、本発明によれば、非使用時には図４に示す如く軸体１の一対の透視長孔４および５が筒体８の非透視長孔部２５にて塞がれ、レンズ部が外部に露呈されることなく万年筆に類似の外形なし、万年筆と同様の要領によりシャツの胸ポケットに収めておくことができ、使用時には単にそれを胸ポケットより取り出し、軸体１と頭体２とを相互に９０度捩れば直ちに両眼を用いた立体的拡大視ができ、その際ケース等の何らの取り外し物を生じず、また使用後には軸体１と頭体２とを相互に９０度捩っておくだけでまた胸ポケットに収納できる拡大鏡を得ることができる。
以上に於いては本発明を一つの実施例について詳細に説明したが、かかる実施例について本発明の範囲内にて種々の修正が可能であることは当業者にとって明らかであろう。
【図面の簡単な説明】
図１は、本発明による万年筆型拡大鏡の一つの実施例を使用時の状態にて示す側面図である。
図２は、図１に示す万年筆型拡大鏡の要部の内部構造示す縦断面図である。
図３は、図２に示す断面構造の両端部を拡大して示す図である。
図４は、図１に示す万年筆型拡大鏡を収納状態にて示す側面図である。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnifying glass used when it is desired to magnify an object such as a fine print every day.
Conventional technology Magnifying glass used when daily fine magnifying is desired, starting with so-called magnifying glass with a handle on the lens, and in recent years a case for folding and storing the lens has been taken out Various designs have been proposed and used, such as a folding magnifier that sometimes serves as a handle.
Folding magnifier can be stored in a pocket, so if you are always careful not to forget to carry it in your pocket, you can meet the need for magnifier whenever you need it. , Easy to leave on the spot, and difficult to carry when not wearing a summer jacket.
On the other hand, there are some simple magnifiers such as plastic rod-shaped corrugated lenses that can be stored in the chest pocket of the shirt, but if the corrugated lens is left in the breast pocket, the corrugated surface captures dust. And its transparency decreases rapidly. Plastic corrugated lenses can be stored in a storage case just like a comb, but it is cumbersome to remove the lens rod from the storage case during use, and the storage case may eventually be left somewhere. There is.
SUMMARY OF THE INVENTION The present invention can be worn and used in a clear state where dust is not always attached when it is desired to magnify a fine print or the like at any time in daily life. It is an object of the present invention to provide a magnifying glass that does not require troublesome operations such as removal of a case and operation that tends to be sparse.
In order to solve the above problems, the present invention has a combination of a shaft body and a head body similar to the combination of the shaft and cap of a fountain pen, and the shaft body is a pair of fluoroscopes arranged along the longitudinal direction thereof. A cylindrical body having a pair of see-through long holes aligned with the see-through long holes of the shaft body is arranged in the shaft body so as to be able to rotate concentrically with the shaft body. A lens body including a pair of lens portions aligned with the pair of fluoroscopic elongated holes is mounted in the cylindrical body, and the cylindrical body and the lens body have a common center for the head body with respect to the shaft body. By rotating around the axis and simultaneously rotating around the common central axis with respect to the shaft body with the head body, each time the relative rotation angle between the two changes by 90 degrees, The pair of see-through long holes of the cylindrical body and the pair of lens portions are aligned with the pair of see-through long holes of the shaft body. And a fountain pen type magnifier characterized in that a pair of see-through long holes of the shaft body are alternately closed by a non-see-through long hole portion of the cylindrical body It is.
The shaft body has a cylindrical opening end, and an annular member that borders the inside of the cylindrical opening end is mounted, and the head body is inserted inside the annular member and engaged therewith. A first clip portion and a second clip portion extending further into the shaft body, and the head body is formed by the first clip portion. It is hold | maintained in the position engaged with the said shaft body via the said annular member, and it engages with the said lens body in the said 2nd clip part, and you may turn this.
The first clip portion slides along the inner peripheral surface of the annular member when the head body rotates with respect to the shaft body, and the inner peripheral surface of the annular member is the head body with respect to the shaft body. Click stop means for capturing the first clip portion and increasing its rotation resistance each time it rotates 90 degrees.
The second clip portion forms a pair of elastically extending leg ends, and engages with the lens body so as to rotate the lens body in such a manner that the tapered end portion of the lens body is elastically sandwiched therebetween. It may be.
The magnifying glass has a combination of a shaft body and a head body similar to the combination of the shaft and cap of the fountain pen, and the shaft body has a pair of see-through long holes arranged along the longitudinal direction thereof. A cylindrical body having a pair of fluoroscopic slots aligned with the fluoroscopic slots of the shaft is arranged in the body so as to be able to rotate concentrically with respect to the shaft, and the pair of fluoroscopes are disposed in the cylinder. A lens body including a pair of lens portions aligned with the long hole is mounted, and the cylindrical body and the lens body are formed by rotating the head body around a common central axis with respect to the shaft body. A pair of see-through slots in the cylindrical body each turn around the common central axis with respect to the shaft body and the relative rotation angle between the two changes by 90 degrees with the head body. The pair of lens portions are aligned with the pair of see-through long holes of the shaft body, and the pair of see-through long holes of the shaft body If the state of being blocked by the non-perforated elongated hole portion of the recording cylinder alternately occurs, the pair of lenses is aligned with both eyes by using a fountain pen-shaped elongated shape. A magnifying glass that can be used to perform a magnified view with a three-dimensional effect can be obtained in a form that can be stored stably in a chest pocket of a shirt at all times, like a fountain pen, without being bulky. In addition, when the magnifying glass is housed, the pivot position of the head relative to the shaft body is rotated 90 degrees from the time of use, so that the pair of see-through long holes of the shaft body is a non-see-through long hole of the cylindrical body. Since it is closed by the portion, the lens body housed therein is not exposed and is well protected from contamination by dust or the like.
The operation of twisting the shaft body and the head body combined in a manner similar to a fountain pen shaft and a cap by 90 degrees at the start and end of use of the magnifier is, for example, a conventional lens with a storage case In comparison, remove the lens from the storage case when using the magnifying glass, clean up the storage case that is no longer necessary or disturbing, and check the storage case again when the magnifying glass is used, and insert the lens into it Compared with the operation to do this, it is much simpler, and there is no inconvenience that the storage case is hidden behind the object and lost temporarily or semi-permanently during use of the magnifier.
The shaft body has a cylindrical opening end, and an annular member that borders the inside of the cylindrical opening end is mounted, and the head body is inserted into and engaged with the annular member. A first clip portion and a second clip portion extending further into the shaft body, and the head body is formed by the first clip portion. A pair of lens parts, provided that the second clip part is held at a position engaged with the shaft body through the annular member and is rotated by rotating the lens body. Can be stored in an object such as a fountain pen shaft so that it can be easily used at any time. Also, when not in use, the pair of lens parts are held from the outside so as not to be exposed to the outside. The structure can be easily achieved.
The first clip portion slides along the inner circumferential surface of the annular member when the head body rotates with respect to the shaft body, and the inner circumferential surface of the annular body is the head body with respect to the shaft body. If there is click stop means for capturing the first clip portion and increasing its rotation resistance every time the lens is rotated 90 degrees, the operation of switching the magnifying glass between the housed state and the used state is performed. Easily, comfortably and reliably achieved.
The second clip portion forms a pair of elastically extending leg ends, and engages with the lens body so as to rotationally drive the lens body in such a manner that the tapered end portion is elastically sandwiched therebetween. The cylindrical body and the lens body are inserted into the shaft body from the opening end thereof, and then the annular member is attached to the opening end, and then the neck portion of the head body is passed through the annular member to the shaft. Both can be connected so that the lens can be rotated by the head only by being inserted into the body.
DESCRIPTION OF PREFERRED EMBODIMENTS FIG. 1 of the accompanying drawings is a side view showing one embodiment of a fountain pen magnifier according to the present invention. The figure shows a state in which the head body is rotated with respect to the shaft body so as to use the magnifying glass. In the figure, 1 is a shaft body and 2 is a head body. The head 2 is a fountain pen that stabilizes the state of storage when the magnifier is stored in the shirt pocket at the shaft 1 and the upper edge of the pocket is sandwiched between the shaft 1 The same outer clip 3 is provided. Reference numerals 4 and 5 are a pair of see-through long holes provided in the shaft body 1. However, here, a pair is a see-through long hole, and as a hole opened in the shaft body 1, two holes are opened facing one see-through long hole in the diameter direction of the shaft body, The total number of holes is four. An oval contour drawn by a one-dot chain line drawn along the peripheries of the perspective long holes 4 and 5 indicates a pair of lens portions of the lens body housed in the shaft body 1. The hemispherical protrusion that rounds the end portion (right end in the figure) of the shaft body 1 may be formed integrally with the shaft body or may be formed by adding another member.
FIG. 2 is a vertical cross-sectional view showing the internal structure of the shaft 1 of the fountain pen magnifier shown in FIG. 3 is an enlarged view showing both end portions of the portion shown in the longitudinal section in FIG.
As understood from these drawings, in the illustrated embodiment, the shaft body 1 has a relatively thin cylindrical shape with the right end closed in the drawings, and is a light metal such as an aluminum alloy. It may be made of a material or a synthetic resin material. A cylindrical body 8 having a cylindrical outer peripheral surface is provided in the shaft body 1 so as to be in light contact with the inner peripheral surface of the cylindrical body formed by the shaft body 1. The cylinder 8 may be made from a synthetic resin material. The cylinder 8 is provided with a pair of see-through slots 9 and 10 that align with the see-through slots 4 and 5 of the shaft body 1 when it is in a predetermined rotational position with respect to the shaft body 1. The transparent long holes 9 and 10 are also opened in the cylinder 8 and there are four holes. In the illustrated embodiment, the right end of the cylinder 8 is closed by a lid 11 configured as a separate member. The lid body 11 includes arc-shaped leg portions 12 extending into the cylindrical body 8 at two diametrically opposed locations along the inside of the peripheral edge of the end portion of the cylindrical body 8. At the same time, one end of a lens body to be described later is held. A spherical projection 13 is formed on the outer surface of the lid body 11 as a pivot point for facilitating the rotation of the cylindrical body 8 within the shaft body 1.
A rod-shaped lens body 14 including the pair of lens portions 6 and 7 described above is accommodated in the cylindrical body 8. Each of the pair of lens portions 6 and 7 of the lens body 14 preferably forms an individual convex lens, or is preferably a waveform lens imitating this. A taper portion 15 is formed at the right end of the lens body 14 in the drawing, and when the lens body 14 is pressed toward the lid body 11, the taper portion forms a pair of leg portions 12 of the lid body 11. By engaging with the wedge, the lens body 14 is integrated with the cylindrical body 8 so as to rotate into the shaft body 1. The leg 12 may be formed with a notch 16 for receiving the tapered portion 15 of the lens body as in the illustrated embodiment.
From the semi-rigid resin material configured to be elastically tightened and engaged with the inner side of the opening end of the shaft body 1 by being slightly elastic at the opening end on the left side of the shaft body 1 in the drawing. An annular member 17 is mounted. A neck portion 18 of the head body 2 is fitted into the annular member so as to penetrate the annular member, and a pair of clip portions 19 provided in a part of the annular member so as to oppose each other in the diametrical direction along the inner peripheral surface of the annular member 17. The head body 2 is held in the mounting position as shown in the figure with respect to the shaft body 1 by engaging with the annular groove 20 provided. The annular groove 20 is provided with depressions 21 at four positions spaced at equal intervals along the annular groove 20. When the tip of the clip portion 19 is engaged with one of these depressions, it is lightly locked there. As a result, a click stop feeling is generated, and the use state in which the rotational position of the head body 2 with respect to the shaft body 1 is at the position shown in FIGS. It is like that.
The neck portion 18 of the head body 2 is also provided with a pair of clip portions 22 that extend further into the shaft body 1 than the clip portions 19 and face each other in the diametrical direction. The pair of clip portions 22 form a pair of leg ends in which the space between them is elastically opened, and the head portion 2 is attached to the open end of the shaft body 1 to which the annular member 17 is attached at the neck portion 18. At this time, a taper portion 23 formed at the left end in the figure of the lens body 14 is elastically sandwiched between the pair of leg ends, whereby the lens body 14 is rotated together with the cylinder 8 by the rotation of the head body 2. The torque transmission engagement between the two is achieved. The clip portion 22 may be formed with a notch 24 for receiving the tapered portion 23 as in the illustrated embodiment.
4 shows a state in which the head body 2 is rotated 90 degrees from the state shown in FIG. 1 with respect to the shaft body 1 with the torque transmission engagement between the head body 2, the lens body 14, and the cylinder body 8 as described above. It is the same side view shown. In this state, the pair of see-through long holes 4 and 5 of the shaft body 1 are closed by the non-see-through long hole portion 25 in which the see-through long holes 9 and 10 of the cylindrical body 8 are not formed, and the lens body 14 is exposed to the outside. It is not exposed.
Thus, according to the present invention, when not in use, the pair of see-through long holes 4 and 5 of the shaft body 1 are closed by the non-see-through long hole portion 25 of the cylinder 8 as shown in FIG. There is no external shape similar to a fountain pen without being exposed, and it can be stored in the chest pocket of the shirt in the same way as a fountain pen. If it is twisted 90 degrees to the right, a three-dimensional magnified view using both eyes can be immediately obtained. In this case, no detachment such as a case is generated, and the shaft body 1 and the head body 2 are twisted 90 degrees to each other after use. You can get a magnifying glass that can be stored in your breast pocket.
While the invention has been described in detail with reference to an embodiment thereof, it will be apparent to those skilled in the art that various modifications may be made to the embodiment without departing from the scope of the invention.
[Brief description of the drawings]
FIG. 1 is a side view showing one embodiment of a fountain pen type magnifier according to the present invention in use.
FIG. 2 is a longitudinal sectional view showing an internal structure of a main part of the fountain pen type magnifier shown in FIG.
3 is an enlarged view of both end portions of the cross-sectional structure shown in FIG.
FIG. 4 is a side view showing the fountain pen magnifier shown in FIG. 1 in a stored state.

Claims

It has a combination of a shaft and a head similar to the combination of the shaft and cap of a fountain pen, and the shaft has a pair of fluoroscopic slots arranged along the longitudinal direction thereof. A cylindrical body having a pair of fluoroscopic elongated holes aligned with the fluoroscopic elongated holes of the shaft body is disposed so as to be concentrically rotatable with respect to the shaft body. A lens body including a pair of aligned lens portions is mounted, and the cylindrical body and the lens body are formed by rotating the head body around a common central axis with respect to the shaft body. At the same time, it rotates around the common central axis with respect to the shaft body, and each time the relative rotation angle between the two changes by 90 degrees, the pair of see-through long holes of the cylinder and the pair of A state in which the lens unit is aligned with the pair of see-through long holes of the shaft body, and the pair of see-through long holes of the shaft body are the cylindrical body Fountain pen type magnifying glass and condition blocked by the non-transparent slot section is equal to or adapted to produce alternately.

The shaft body has a cylindrical opening end, and an annular member that borders the inside of the cylindrical opening end is mounted, and the head body is inserted inside the annular member and engaged therewith. A first clip portion and a second clip portion extending further into the shaft body, and the head body is formed by the first clip portion. It is hold | maintained in the position engaged with the said shaft body via the said annular member, It engages with the said lens body by the said 2nd clip part, and this is rotated. Item 10. A fountain pen magnifier according to item 1.

The first clip portion slides along the inner peripheral surface of the annular member when the head body rotates with respect to the shaft body, and the inner peripheral surface of the annular member is the head body with respect to the shaft body. The fountain pen type magnifying glass according to claim 2, further comprising click stop means for capturing the first clip portion and increasing its rotation resistance every time the lens is rotated 90 degrees.

The second clip portion forms a pair of elastically extending leg ends, and is rotationally engaged with the lens body in such a manner that the tapered end portion of the lens body is elastically sandwiched therebetween. The fountain pen type magnifier according to claim 2 or 3, wherein