JP3932491B2 - Writing instrument cap - Google Patents
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- JP3932491B2 JP3932491B2 JP25084296A JP25084296A JP3932491B2 JP 3932491 B2 JP3932491 B2 JP 3932491B2 JP 25084296 A JP25084296 A JP 25084296A JP 25084296 A JP25084296 A JP 25084296A JP 3932491 B2 JP3932491 B2 JP 3932491B2
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Description
【０００１】
【発明の属する技術分野】
この発明は、幼児等が誤飲した場合に、一定の呼吸を確保することができるように空気の流通を可能にする通気孔を有する筆記具用キャップの構造に関する。
【０００２】
【従来の技術】
従来、幼児等が誤飲した場合、気管に詰まって窒息等を起こさず、一定の呼吸を確保することができるように、空気の流通を可能にする通気孔を有するいわゆる安全キャップが提案されており、例えばそのような通気孔を有する筆記具等のキャップのうち、特に筆先部の乾燥を防止する必要のある筆記具のキャップとして、その内孔に複数のリブで接続されるインナーキャップを形成し、キャップの内周壁とインナーキャップの外周との間で通気孔を形成すると共に、このインナーキャップの入口内周壁から上記リブ間に位置するインナーキャップの外周に貫通する横孔を設けることにより、インナーキャップの開口端縁近傍から横孔を経て上記キャップ後端の通気孔と連通するものが提案されている（実開平３−５７０８８号，ドイツ特許第３８２１１９５号）。
【０００３】
【発明が解決しようとする課題】
しかしながら、上記従来の筆記具のキャップ、実開平３−５７０８８号とドイツ特許第３８２１１９５号においては、実際にサインペン、マーカー等の筆記具の先端を密閉、収容して、その先端部の乾燥を防止するインナーキャップと、このインナーキャップとキャップとの接続は、インナーキャップの縦方向に配置される複数のリブを介して行われるものであるが、このインナーキャップの縦方向に配置される複数のリブは、インナーキャップの開口縁近傍とクリップを有することとなるキャップとを接続するものであるから、この筆記具等のキャップを一体に成形しようとする場合には、金型構成上からインナーキャップを形成する金型部品の先端部分より複数のリブを配しなければならないので、キャップの内周壁を成形する金型部品が長くなり、十分な金型強度を確保することができないという欠点がある。
【０００４】
また、上記インナーキャップと、このインナーキャップとキャップとの接続を行う、インナーキャップの縦方向に配置される複数のリブは、インナーキャップの開口縁近傍とキャップとを接続するものであることから、筆記具の先端部をインナーキャップ内に収容しようとする場合には、インナーキャップの開口縁が固定されてしまって挿入する筆記具先端と正確な心合せが必要であり、柔軟性に欠けるものとなるため、筆記具の先端部との心合せが不完全であると、筆記具の先端部がインナーキャップの開口縁から位置がずれてしまい、容易かつ確実にインナーキャップ内に挿嵌されるものとならず、非常に煩わしさを使用者に与え、また柔軟なマーカーの先端部等に破損を与える恐れがあるという問題もある。
【０００５】
そこで、この発明は上記従来のものの持つ欠点を改善するものであり、簡単な構造により、筆記具用キャップを一体成形する場合に必要とされる金型部品の強度を十分に確保しつつ、キャップの装着時における筆記具先端部に対する装着の自由度を拡げ、製造コストの低減を図ろうとするものである。
【０００６】
【課題を解決するための手段】
そのために、筆記具の先端部を収容する内キャップと、この内キャップの外側に配置される外キャップから構成され、
該内キャップは、外周壁を、筆記具用キャップの頂部側より、外径の一部を小さくしてなる径小部、該径小部よりも径大であって開口縁へ連なる径大部、及び内キャップの略中間位置において径小部と径大部との間で形成されるテーパー状の段部よりなるものとし、 該外キャップは、その内周壁を、前記内キャップの径小部に対応して内径を径小とする縮径部、内キャップの径大部に対応して内径を径大とする拡径部、及び内キャップの段部よりも筆記具用キャップの頂部側に位置して、前記縮径部と拡径部とを連絡する径変部よりなるものとし、
該縮径部の内周壁と内キャップの径大部の外周壁とを互いに面一とするものであって、 上記内キャップと、外キャップとで、筆記具用キャップの頂部から、内キャップの外周壁の径小部と外キャップの内周壁の縮径部との間、及び該径小部より径大である内キャップの径大部と該径大部に対応して内径を径大とする外キャップの内周壁の拡径部との間とを、上記内キャップのテーパー状の段部と外キャップの径変部との間を通じて連通する通気孔を形成して、
該内キャップと外キャップとは、内キャップの略中間位置に設ける段部の頂部側に位置する内キャップ外周壁と外キャップの内周壁の縮径部との間で一体に形成する複数の縦リブによって連結、保持してなるものである。
【０００７】
【発明の実施の形態】
この発明の実施例である筆記具用キャップにおいては、筆記具の先端部を収容する内キャップと外キャップとは、内キャップの略中間位置に設ける段部の頂部側に位置する内キャップ外周壁と外キャップの内周壁の縮径部との間で一体に形成する複数の縦リブによって連結、保持してなるように一体に成形するものであるから、この筆記具用キャップを一体に成形する金型部品、特に外キャップ内周壁を成形する一方の金型部品において、その長さを短くすることができるので、この金型部品の金型強度を著しく向上させることができる。
【０００８】
更に、内キャップと外キャップとを連結、保持してなる複数の縦リブは、内キャップの略中間位置に設ける段部の頂部側に位置する内キャップ外周壁と外キャップ内周壁の縮径部との間において形成されるので、内キャップ自体の開口縁においては、上記縦リブを中心とした左右方向への揺動が自在となるから、筆記具軸と内キャップが完全に心合せされなくて、筆記具の先端部の位置が多少斜めになっていても、内キャップ自体がその筆記具の先端部の斜向に対応して適宜揺動し、筆記具の先端部を内キャップ内に誘導し、密閉性を持って収容するものとなるので、その筆記具用キャップの装着の自由度を拡げることができるものである。
【０００９】
【実施例】
この発明を図に示す実施例により更に説明する。（１）は、この発明の実施例である筆記具用キャップであり、この筆記具用キャップ（１）は、筆記具の先端部を密閉して収容する内キャップ（４）と、この内キャップ（４）の外側に配置され、クリップ（３）を有する外キャップ（２）から構成される。なお、この実施例においてはクリップ（３）を具えるが、クリップ（３）をもたないものであってもよいものである。
【００１０】
そして、この発明の実施例である筆記具用キャップ（１）においては、
該内キャップ（４）は、外周壁を、筆記具用キャップ（１）の頂部側より、外径の一部を小さくしてなる径小部（４’）、該径小部（４’）よりも径大であって開口縁（１１）へ連なる径大部（４”）、及び内キャップ（４）の略中間位置において径小部（４’）と径大部（４”）との間で形成されるテーパー状の段部（５）よりなるものとし、
該外キャップ（２）は、その内周壁（７）を、前記内キャップ（４）の径小部（４’）に対応して内径を径小とする縮径部（７”）、内キャップ（４）の径大部（４”）に対応して内径を径大とする拡径部（２’）、及び内キャップ（２）の段部（５）よりも筆記具用キャップ（１）の頂部側に位置して、前記縮径部（７”）と拡径部（２’）とを連絡する径変部（２”）よりなるものとし、
該縮径部（７”）の内周壁（７）と内キャップ（４）の径大部（４”）の外周壁（８）とを互いに面一とするものであって、
上記内キャップ（４）と、外キャップ（２）とで、筆記具用キャップ（１）の頂部（６）から、内キャップ（４）の外周壁（８）の径小部（４’）と外キャップ（２）の内周壁（７）の縮径部（７”）との間、及び該径小部（４’）より径大である内キャップ（４）の径大部（４”）と該径大部（４”）に対応して内径を径大とする外キャップ（２）の内周壁（７）の拡径部（２’）との間とを、上記内キャップ（４）のテーパー状の段部（５）と外キャップ（２）の径変部（２２）との間を通じて連通する通気孔（９）を形成して、 該内キャップ（４）と外キャップ（２）とは、内キャップ（４）の略中間位置に設ける段部（５）の頂部（６）側に位置する内キャップ（４）外周壁（８）と外キャップ（２）の内周壁（７）の縮径部（７”）との間で一体に形成する複数の縦リブ（１０）によって連結、保持してなるものである。
【００１１】
この発明の実施例は以上の構成を具えるから、筆記具の先端部を密閉して収容する内キャップ（４）と外キャップ（２）とは、内キャップ（４）の略中間位置において設ける段部（５）の頂部（６）側に位置する内キャップ外周壁（８）と外キャップ（２）の内周壁（７）の縮径部（７”）との間で一体に形成する複数の縦リブ（１０）によって連結、保持してなるものであるから、この筆記具用キャップ（１）を一体に成形する金型部品（この金型はキャップ内外から突合せて型を形成する。）、特に空気の流通を確保する通気孔（９）を形成する外キャップ内周壁（７’）を成形する金型部品において、その長さを短くすることができることとなるので、この金型部品の金型強度を著しく向上させることができる。ここで、キャップ内外から突合わせに金型を組合せ、突合せ部分に内キャップ（４）と外キャップ（２）を接合する部分を構成するから通気孔（９）に段部（５）を設ける必要がある。
【００１２】
更に、筆記具用キャップ（１）を構成し、筆記具の先端部を密閉性を持って収容する内キャップ（４）と外キャップ（２）とを連結、保持してなる複数の縦リブ（１０）は、内キャップ（４）の略中間位置に設ける段部（５）の頂部側に位置する内キャップ（４）の外周壁（８）と外キャップ（２）の内周壁（７）の縮径部（７”）との間において形成されるので、内キャップ（４）の開口縁（１１）においては、上記縦リブ（１０）を中心とした上下左右方向への揺動が自在となるから、筆記具の先端部と内キャップ（４）の心合せが若干外れても内キャップ（４）自体がその筆記具の先端部のずれに対応して適宜揺動し、筆記具の先端部を内キャップ（４）内に誘導し、内キャップ（４）内に密閉して収容するものとなるので、その筆記具用キャップ（１）の装着の自由度を拡げることができるものである。
【００１３】
【発明の効果】
以上のとおり、この発明は構成されるから、一体成形に際しての一方の金型部品の長さを小さくできるので金型強度及びその耐久性を向上させることができると共に、内キャップを外キャップに対して連結、保持する縦リブが内キャップの略中間位置に設けられていることから、内キャップ自由端が左右方向に対して揺動自在となり、筆記具の先端部と内キャップの心合せに若干の偏りがあっても適宜内キャップが筆記具の先端部の方向に応じて揺動し、確実に内キャップ内に誘導するものとなるため、筆記具用キャップの装着の自由度を拡げ、製品コストを低減できるものとなる優れた効果を有するものである。
【図面の簡単な説明】
【図１】 この発明の実施例である筆記具用キャップの正面図である。
【図２】 図１における筆記具用キャップの拡大縦断面図である。
【図３】 図１における筆記具用キャップの上方よりの平面図である。
【図４】 図３における筆記具用キャップのＡ−Ａ横断面図である。
【符号の説明】
１ 筆記具用キャップ
２ 外キャップ
２’ 拡径部
２” 径変部
３ クリップ
４ 内キャップ
４’ 径小部
４” 径大部
５ 段部
６ （筆記具用キャップの）頂部
７、７’ （外キャップの）内周壁
７” 縮径部
８ （内キャップの）外周壁
９ 通気孔
１０ 縦リブ
１１ （内キャップの）開口縁[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a writing instrument cap having a vent hole that allows air to flow in order to ensure constant breathing when an infant or the like swallows it.
[0002]
[Prior art]
In the past, so-called safety caps with vents that allow air flow have been proposed so that if an infant or the like accidentally ingests, the trachea can become clogged and no suffocation occurs, and a constant breath can be secured. For example, among caps such as writing instruments having such vents, especially as a writing instrument cap that needs to prevent drying of the writing tip, an inner cap connected to the inner hole by a plurality of ribs is formed. By forming a vent hole between the inner peripheral wall of the cap and the outer periphery of the inner cap, and providing a lateral hole penetrating from the inner peripheral wall of the inner cap to the outer periphery of the inner cap located between the ribs, the inner cap Has been proposed that communicates with the vent hole at the rear end of the cap through a horizontal hole from the vicinity of the opening edge (Japanese Utility Model Laid-Open No. 3-57088, German patent). No. 3,821,195).
[0003]
[Problems to be solved by the invention]
However, in the above-mentioned conventional writing instrument cap, Japanese Utility Model Publication No. 3-57088 and German Patent No. 3821195, the tip of the writing instrument such as a sign pen and a marker is actually sealed and accommodated to prevent the tip from drying out. The cap and the connection between the inner cap and the cap are made via a plurality of ribs arranged in the vertical direction of the inner cap, and the plurality of ribs arranged in the vertical direction of the inner cap are Since the vicinity of the opening edge of the inner cap and the cap having the clip are connected, when the cap such as this writing instrument is to be formed integrally, the mold for forming the inner cap from the mold configuration is used. Mold parts that mold the inner peripheral wall of the cap because multiple ribs must be arranged from the tip of the mold part Longer, there is a disadvantage that it is impossible to ensure a sufficient mold strength.
[0004]
Further, since the plurality of ribs arranged in the vertical direction of the inner cap for connecting the inner cap and the inner cap and the cap connect the vicinity of the opening edge of the inner cap and the cap, When the tip of the writing instrument is to be accommodated in the inner cap, the opening edge of the inner cap is fixed and the leading end of the writing instrument to be inserted is required to be accurately aligned, resulting in lack of flexibility. If the alignment with the tip of the writing instrument is incomplete, the position of the tip of the writing instrument will shift from the opening edge of the inner cap, and it will not be easily and reliably inserted into the inner cap, There is also a problem that the user is very bothered and there is a risk that the tip of the flexible marker may be damaged.
[0005]
Therefore, the present invention is to improve the drawbacks of the above-mentioned conventional ones, and with a simple structure, while sufficiently securing the strength of the mold parts required when integrally forming the writing instrument cap, The present invention intends to expand the degree of freedom of mounting on the writing instrument tip during mounting and reduce the manufacturing cost.
[0006]
[Means for Solving the Problems]
To that end, it is composed of an inner cap that accommodates the tip of the writing instrument, and an outer cap that is disposed outside the inner cap.
The inner cap has an outer peripheral wall with a small diameter part formed by reducing a part of the outer diameter from the top side of the writing instrument cap, a large diameter part larger in diameter than the small diameter part and connected to the opening edge, And a tapered step formed between the small-diameter portion and the large-diameter portion at a substantially intermediate position of the inner cap, and the outer cap has its inner peripheral wall at the small-diameter portion of the inner cap. Correspondingly, it is located on the top side of the writing instrument cap from the reduced diameter part that reduces the inner diameter, the enlarged part that increases the inner diameter corresponding to the large part of the inner cap, and the step part of the inner cap. And a diameter changing portion that connects the reduced diameter portion and the enlarged diameter portion,
The inner peripheral wall of the reduced-diameter portion and the outer peripheral wall of the large-diameter portion of the inner cap are flush with each other, and the inner cap and the outer cap are connected to the outer periphery of the inner cap from the top of the writing instrument cap. The inner diameter is increased between the small diameter portion of the wall and the reduced diameter portion of the inner peripheral wall of the outer cap, and the large diameter portion of the inner cap that is larger than the small diameter portion and the large diameter portion. Forming a vent hole communicating with the enlarged diameter portion of the inner peripheral wall of the outer cap through the tapered step portion of the inner cap and the diameter changing portion of the outer cap ;
The inner cap and the outer cap are a plurality of vertically formed integrally between the inner cap outer peripheral wall located on the top side of the step portion provided at a substantially intermediate position of the inner cap and the reduced diameter portion of the inner peripheral wall of the outer cap. It is connected and held by ribs.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
In the writing instrument cap according to the embodiment of the present invention, the inner cap and the outer cap that accommodate the tip end of the writing instrument are separated from the outer peripheral wall of the inner cap positioned on the top side of the step portion provided at a substantially intermediate position of the inner cap. connected by a plurality of vertical ribs formed integrally with the reduced diameter portion of the inner peripheral wall of the cap, since it is intended to mold integrally with so that a holding mold for molding the writing instrument cap integrally Since the length of one mold part for molding the part, particularly the inner peripheral wall of the outer cap, can be shortened, the mold strength of the mold part can be remarkably improved.
[0008]
Furthermore, coupling the inner cap and outer cap, a plurality of longitudinal ribs ing hold the diameter of the cap outer peripheral wall and the outer cap inner peripheral wall located at the top side of the step portion provided in a substantially intermediate position of the inner cap because it is formed between the parts, in the opening edge of the inner cap itself, since the swing in the lateral direction around the longitudinal rib is freely writing instrument shaft and the inner cap not be completely alignment Even if the position of the tip of the writing instrument is slightly inclined, the inner cap itself swings appropriately corresponding to the oblique direction of the tip of the writing instrument, and the tip of the writing instrument is guided into the inner cap, Since the container is housed in a hermetic manner, the degree of freedom of attaching the writing instrument cap can be expanded.
[0009]
【Example】
The present invention will be further described with reference to the embodiments shown in the drawings. (1) is a writing instrument cap according to an embodiment of the present invention. The writing instrument cap (1) includes an inner cap (4) for sealing and housing the tip of the writing instrument, and the inner cap (4). And is composed of an outer cap (2) having a clip (3). In this embodiment, the clip (3) is provided, but the clip (3) may be omitted.
[0010]
And in the cap (1) for writing instruments which is an Example of this invention,
The inner cap (4) has an outer peripheral wall formed from a small-diameter portion (4 ′) obtained by reducing a part of the outer diameter from the top side of the writing instrument cap (1), and from the small-diameter portion (4 ′). The large diameter portion (4 ″) which is also large in diameter and continues to the opening edge (11), and between the small diameter portion (4 ′) and the large diameter portion (4 ″) at a substantially intermediate position of the inner cap (4). It shall consist of the taper-shaped step part (5) formed by,
The outer cap (2) has a reduced diameter portion (7 ") whose inner peripheral wall (7) has a smaller inner diameter corresponding to the smaller diameter portion (4 ') of the inner cap (4). Corresponding to the large-diameter portion (4 ″) of (4), the enlarged-diameter portion (2 ′) having a large inner diameter and the step (5) of the inner cap (2) of the writing instrument cap (1) It is located on the top side and comprises a diameter changing portion (2 ″) connecting the reduced diameter portion (7 ″) and the expanded diameter portion (2 ′),
The inner peripheral wall (7) of the reduced diameter portion (7 ″) and the outer peripheral wall (8) of the large diameter portion (4 ″) of the inner cap (4) are flush with each other,
The inner cap (4) and the outer cap (2), from the top (6) of the writing instrument cap (1), to the outer diameter wall (8) of the inner cap (4), the small diameter portion (4 ′) and the outer cap (4). Between the diameter-reduced portion (7 ″) of the inner peripheral wall (7) of the cap (2) and the large-diameter portion (4 ″) of the inner cap (4) that is larger in diameter than the small-diameter portion (4 ′). Corresponding to the large diameter portion (4 ″) between the inner cap wall (7) and the enlarged diameter portion (2 ′) of the inner cap (2), the inner cap (4) has a larger inner diameter. tapered stepped portion (5) and forms a vent (9) communicating through between the diameter change of the outer cap (2) (22), the inner cap (4) and the outer cap (2) the inner cap stepped portion provided at a substantially middle position of (5) a cap inner located at the top (6) side of (4) the inner wall (7) of the outer peripheral wall (8) and the outer cap (2) (4) With reduced diameter (7 ") A plurality of longitudinal linked by ribs (10) formed integrally between, is made to hold.
[0011]
Since this embodiment of the invention comprises the above-described configuration, stage a cap (4) Among accommodating seals the tip of the writing instrument and the outer cap (2), provided at a substantially intermediate position of the inner cap (4) A plurality of integrally formed between the inner cap outer peripheral wall (8) located on the top (6) side of the portion (5) and the reduced diameter portion (7 ") of the inner peripheral wall (7) of the outer cap (2) vertical linked by ribs (10), since it is shall such to hold the mold parts for molding the writing instrument cap (1) together (the mold to form a mold butt cap and out.) In particular, in the mold part for molding the inner peripheral wall (7 ') of the outer cap that forms the vent hole (9) that secures the air flow, the length of the mold part can be shortened. The mold strength can be significantly improved, whether inside or outside the cap. Therefore, it is necessary to provide a step portion (5) in the vent hole (9) because the butt is combined with a mold and a portion where the inner cap (4) and the outer cap (2) are joined is formed in the butt portion.
[0012]
Furthermore, it constitutes a writing instrument cap (1), coupling the cap (4) Among accommodating with tightness with the tip portion of the writing instrument outer cap (2) and, held ing a plurality of longitudinal ribs (10 ) Is a contraction of the outer peripheral wall (8) of the inner cap (4) and the inner peripheral wall (7) of the outer cap (2) located on the top side of the step (5) provided at a substantially intermediate position of the inner cap (4). Since it is formed between the diameter portion (7 ″), the opening edge (11) of the inner cap (4) can freely swing in the vertical and horizontal directions around the vertical rib (10). Therefore, even if the tip of the writing instrument and the inner cap (4) are slightly misaligned, the inner cap (4) itself will swing appropriately in accordance with the deviation of the tip of the writing instrument, and the tip of the writing instrument is moved to the inner cap. (4) Since it will be guided in and sealed in the inner cap (4), its writing In which it can be expanded freedom of mounting of use the cap (1).
[0013]
【The invention's effect】
As described above, since the present invention is configured, the length of one mold part at the time of integral molding can be reduced, so that the mold strength and its durability can be improved, and the inner cap with respect to the outer cap. Since the vertical ribs to be connected and held are provided at substantially the middle position of the inner cap, the free end of the inner cap can swing in the left-right direction, and there is a slight alignment between the tip of the writing instrument and the inner cap. Even if there is a bias, the inner cap will swing appropriately according to the direction of the tip of the writing instrument, and it will surely be guided into the inner cap, thus expanding the degree of freedom of mounting the writing instrument cap and reducing product cost It has an excellent effect of becoming possible.
[Brief description of the drawings]
FIG. 1 is a front view of a writing instrument cap according to an embodiment of the present invention.
2 is an enlarged vertical sectional view of the writing instrument cap in FIG. 1. FIG.
FIG. 3 is a plan view from above of the writing instrument cap in FIG. 1;
4 is a cross-sectional view taken along the line AA of the writing instrument cap in FIG. 3. FIG.
[Explanation of symbols]
1
2 ' diameter expansion part
2 " diameter change part 3 clip 4 inner cap
4 ' diameter small part
4 "
7 ” reduced
Claims (1)
該内キャップは、外周壁を、筆記具用キャップの頂部側より、外径の一部を小さくしてなる径小部、該径小部よりも径大であって開口縁へ連なる径大部、及び内キャップの略中間位置において径小部と径大部との間で形成されるテーパー状の段部よりなるものとし、 該外キャップは、その内周壁を、前記内キャップの径小部に対応して内径を径小とする縮径部、内キャップの径大部に対応して内径を径大とする拡径部、及び内キャップの段部よりも筆記具用キャップの頂部側に位置して、前記縮径部と拡径部とを連絡する径変部よりなるものとし、
該縮径部の内周壁と内キャップの径大部の外周壁とを互いに面一とするものであって、 上記内キャップと、外キャップとで、筆記具用キャップの頂部から、内キャップの外周壁の径小部と外キャップの内周壁の縮径部との間、及び該径小部より径大である内キャップの径大部と該径大部に対応して内径を径大とする外キャップの内周壁の拡径部との間とを、上記内キャップのテーパー状の段部と外キャップの径変部との間を通じて連通する通気孔を形成して、
該内キャップと外キャップとは、内キャップの略中間位置に設ける段部の頂部側に位置する内キャップ外周壁と外キャップの内周壁の縮径部との間で一体に形成する複数の縦リブによって連結、保持してなる筆記具用キャップ。It consists of an inner cap that houses the tip of the writing instrument, and an outer cap that is placed outside the inner cap,
The inner cap has an outer peripheral wall with a small diameter part formed by reducing a part of the outer diameter from the top side of the writing instrument cap, a large diameter part larger in diameter than the small diameter part and connected to the opening edge, And a tapered step formed between the small-diameter portion and the large-diameter portion at a substantially intermediate position of the inner cap, and the outer cap has its inner peripheral wall at the small-diameter portion of the inner cap. Correspondingly, it is located on the top side of the writing instrument cap from the reduced diameter part that reduces the inner diameter, the enlarged part that increases the inner diameter corresponding to the large part of the inner cap, and the step part of the inner cap. And a diameter changing portion that connects the reduced diameter portion and the enlarged diameter portion,
The inner peripheral wall of the reduced-diameter portion and the outer peripheral wall of the large-diameter portion of the inner cap are flush with each other, and the inner cap and the outer cap are connected to the outer periphery of the inner cap from the top of the writing instrument cap. The inner diameter is increased between the small diameter portion of the wall and the reduced diameter portion of the inner peripheral wall of the outer cap, and the large diameter portion of the inner cap that is larger than the small diameter portion and the large diameter portion. Forming a vent hole communicating with the enlarged diameter portion of the inner peripheral wall of the outer cap through the tapered step portion of the inner cap and the diameter changing portion of the outer cap ;
The inner cap and the outer cap are a plurality of vertically formed integrally between the inner cap outer peripheral wall located on the top side of the step portion provided at a substantially intermediate position of the inner cap and the reduced diameter portion of the inner peripheral wall of the outer cap. A writing instrument cap that is connected and held by ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25084296A JP3932491B2 (en) | 1996-09-03 | 1996-09-03 | Writing instrument cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25084296A JP3932491B2 (en) | 1996-09-03 | 1996-09-03 | Writing instrument cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1076790A JPH1076790A (en) | 1998-03-24 |
| JP3932491B2 true JP3932491B2 (en) | 2007-06-20 |
Family
ID=17213831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25084296A Expired - Fee Related JP3932491B2 (en) | 1996-09-03 | 1996-09-03 | Writing instrument cap |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3932491B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4681928B2 (en) * | 2005-04-20 | 2011-05-11 | Ｈｏｙａ株式会社 | Endoscope protective cap |
| JP4681930B2 (en) * | 2005-04-26 | 2011-05-11 | Ｈｏｙａ株式会社 | Endoscope protective cap |
| JP4634921B2 (en) * | 2005-12-08 | 2011-02-16 | Ｈｏｙａ株式会社 | Endoscope protective cap |
| JP4634967B2 (en) * | 2006-05-26 | 2011-02-16 | Ｈｏｙａ株式会社 | Endoscope protective cap |
| JP4634968B2 (en) * | 2006-05-29 | 2011-02-16 | Ｈｏｙａ株式会社 | Endoscope protective cap |
| JP4682090B2 (en) * | 2006-06-14 | 2011-05-11 | Ｈｏｙａ株式会社 | Endoscope protective cap |
-
1996
- 1996-09-03 JP JP25084296A patent/JP3932491B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1076790A (en) | 1998-03-24 |
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