JP3017029U - Writing instrument cap - Google Patents
Writing instrument capInfo
- Publication number
- JP3017029U JP3017029U JP1995004452U JP445295U JP3017029U JP 3017029 U JP3017029 U JP 3017029U JP 1995004452 U JP1995004452 U JP 1995004452U JP 445295 U JP445295 U JP 445295U JP 3017029 U JP3017029 U JP 3017029U
- Authority
- JP
- Japan
- Prior art keywords
- elastic body
- cap
- writing instrument
- holding portion
- pen
- 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 - Lifetime
Links
Landscapes
- Pens And Brushes (AREA)
Abstract
(57)【要約】
【目的】筆記具本体のペン体をシールする弾性体が確実
に弾性体保持部に保持されて脱落することのない筆記具
用キャップを提供する。
【構成】キャップ本体1の先端の弾性体保持部4内に弾
性体9が圧入によって保持され、キャップに装着された
筆記具本体のペン体を弾性体9でシールする筆記具用キ
ャップにおいて、弾性体保持部4の壁面に弾性体抜け止
め用の内向き突起6を形成する。
(57) [Abstract] [PROBLEMS] To provide a writing instrument cap in which an elastic body that seals a pen body of a writing instrument body is securely held by an elastic body holding portion and does not fall off. [Structure] In a writing tool cap, in which an elastic body 9 is press-fitted and held in an elastic body holding portion 4 at the tip of a cap body 1, and the pen body of the writing instrument body mounted on the cap is sealed by the elastic body 9, An inward projection 6 for preventing the elastic body from coming off is formed on the wall surface of the portion 4.
Description
【0001】[0001]
本考案は、筆記具用のキャップに関するものである。 The present invention relates to a writing instrument cap.
【0002】[0002]
インキを使用する筆記具は、非使用時にペン体からのインキの蒸発を防止する などの目的で、キャップにて筆記具本体のペン体を密封することが多い。ペン体 をキャップ内の内筒で密閉すると、キャップを着脱するときに、この内筒がシリ ンダーの役割を果たし、キャップを装着する過程で内筒の閉空間の容積が減少し て高圧になる。従って、この高圧の空気がインキ筒内に侵入してインキ筒内も高 圧になり、筆記時にインキが押し出されてボタ落ちすることがある。また、キャ ップを取り外す過程で、内筒の閉空間の容積が増大して減圧され、インキがイン キ筒から引き出されることがある。 In writing instruments that use ink, the pen of the writing instrument itself is often sealed with a cap for the purpose of preventing evaporation of ink from the pen when not in use. When the pen body is sealed with the inner cylinder inside the cap, this inner cylinder functions as a cylinder when the cap is attached and detached, and the volume of the closed space of the inner cylinder decreases and the pressure rises during the process of mounting the cap. . Therefore, this high-pressure air enters the ink cylinder and the pressure in the ink cylinder also becomes high, and the ink may be pushed out during writing to cause dripping. Further, in the process of removing the cap, the volume of the closed space of the inner cylinder is increased and the pressure is reduced, and the ink may be drawn out from the ink cylinder.
【0003】 このため、ボールペンなどの場合は、キャップ先端の弾性体保持部にゴムのよ うな弾性体を保持し、筆記具本体をキャップに装着したときにペン体を弾性体に 圧接させ、弾性体が凹陥状に変形することによってペン体の先端を覆ってシール するようにしたものが多い。このように、弾性体でペン体をシールすると、イン キの蒸発を防止するのみでなく、衝撃がかかったときなどにインキがキャップ内 に洩れ出すことも防止できる。For this reason, in the case of a ballpoint pen or the like, an elastic body such as rubber is held in the elastic body holding portion at the tip of the cap, and the pen body is pressed against the elastic body when the writing instrument main body is mounted on the cap. In many cases, the tip of the pen body is covered and sealed by deforming into a concave shape. By thus sealing the pen body with the elastic body, not only the evaporation of the ink is prevented but also the ink is prevented from leaking into the cap when a shock is applied.
【0004】[0004]
ところで、弾性体を保持する構造は、弾性体保持部を筒状にし、球状の弾性体 を弾性体保持部に圧入することがけ多いが、この場合、弾性体の自然状態におけ る外径を筒状の弾性保持部の内径よりも幾分大きくし、弾性体を縮径させた状態 で保持する。 By the way, in the structure that holds the elastic body, it is often the case that the elastic body holding portion is formed into a cylindrical shape and a spherical elastic body is press-fitted into the elastic body holding portion.In this case, the outer diameter of the elastic body in its natural state is The inner diameter of the elastic body is made slightly larger than the inner diameter of the cylindrical elastic holding portion to hold the elastic body in a contracted state.
【0005】 このとき、弾性体の自然状態の外径をあまり大きくすると、圧入抵抗が大きく なって弾性体保持部に圧入しにくく、かつ圧入後に弾性体が大きな圧縮圧力を受 けるので、ペン体を圧接したときに弾性体が凹陥状に変形しにくく、シールが不 完全になる不具合がある。このため、弾性体の外径を可能な限り小さく設計する のが好ましいが、設計寸法を小さくすると、弾性体やキャップの弾性体保持部の 製作時の寸法バラツキにより、弾性体の保持が不確実になって脱落することがあ る。At this time, if the outer diameter of the elastic body in the natural state is too large, the press-fitting resistance becomes large and it is difficult for the elastic body to be press-fitted into the elastic body holding portion, and the elastic body receives a large compression pressure after the press-fitting. The elastic body is unlikely to deform into a concave shape when pressure is applied to the seal, resulting in incomplete sealing. For this reason, it is preferable to design the outer diameter of the elastic body as small as possible.However, if the design size is made small, the elastic body cannot be held securely due to dimensional variations during manufacturing of the elastic body and the elastic body holding part of the cap. May be dropped.
【0006】 そこで本考案は、筆記具本体のペン体をシールする弾性体が確実に弾性体保持 部に保持されて脱落することのない筆記具用キャップを提供することを目的とす る。Therefore, an object of the present invention is to provide a writing instrument cap in which an elastic body that seals a pen body of a writing instrument body is securely held by an elastic body holding portion and does not fall off.
【0007】[0007]
かかる目的を達成するために、本考案は、キャップ本体の先端の弾性体保持部 内に弾性体が圧入され、キャップに装着された筆記具本体のペン体を弾性体でシ ールする筆記具用キャップにおいて、弾性体保持部の壁面に弾性体抜け止め用の 内向き突起を形成する。 In order to achieve such an object, the present invention provides a cap for a writing instrument in which an elastic body is press-fitted into an elastic body holding portion at a tip of a cap body to seal a pen body of a writing instrument body attached to the cap with the elastic body. In, an inward projection for preventing the elastic body from coming off is formed on the wall surface of the elastic body holding portion.
【0008】[0008]
すなわち、キャップ本体の弾性体保持部の壁面に弾性体抜け止め用の内向き突 起を形成したので、圧入し易く、かつペン体を圧接したときに弾性体が変形し易 くするために弾性体の設計寸法を小さくしても、弾性体が確実に保持されて脱落 することがない。 That is, since an inward protrusion for preventing the elastic body from coming off is formed on the wall surface of the elastic body holding portion of the cap body, it is easy to press-fit and the elastic body is easily deformed when the pen body is pressed. Even if the body design size is reduced, the elastic body is securely held and does not fall off.
【0009】[0009]
以下に図面に示す実施例に基づいて本考案を具体的に説明する。合成樹脂で有 底筒状に成形されたキャップ本体1の内面に8枚の縦リブ2が形成され、筆記具 本体のペン体が挿入される内筒3がリブ2に連設されている。そして、内筒3の 奥底部が弾性体保持部4である。 The present invention will be described in detail below based on the embodiments shown in the drawings. Eight vertical ribs 2 are formed on the inner surface of a cap main body 1 formed of a synthetic resin in a bottomed tubular shape, and an inner cylinder 3 into which the pen body of the writing instrument main body is inserted is connected to the rib 2. The inner bottom of the inner cylinder 3 is the elastic body holding portion 4.
【0010】 弾性体保持部4には、合口側が傾斜した4本の保持リブ5が形成されており、 保持リブ5には弾性体抜け止め用の小さな内向き突起6が形成されている。そし て、例えばシリコンゴムからなる球状の弾性体9が保持リブ5によって保持され ている。つまり、自然状態の外径が保持リブ5の内接円よりも幾分大きな弾性体 9を弾性体保持部4に入れ、内向き突起6を乗り越えて圧入することによって保 持する。この弾性体9は、図示略の筆記具本体をキャップに装着したときに、ペ ン体が圧接すると凹陥状に変形してペン体の先端を覆ってシールするので、イン キの蒸発を防止することができる。The elastic body holding portion 4 is formed with four holding ribs 5 that are inclined toward the abutment side, and the holding ribs 5 are formed with small inward projections 6 for preventing the elastic body from coming off. The spherical elastic body 9 made of, for example, silicon rubber is held by the holding rib 5. That is, an elastic body 9 having an outer diameter in a natural state, which is slightly larger than the inscribed circle of the holding rib 5, is put into the elastic body holding portion 4, and is pushed over the inward projection 6 to be held. When the pen body is pressed against the elastic body 9 when the pen body is attached to the cap (not shown), the elastic body 9 deforms into a concave shape and covers the tip of the pen body to seal the pen body. You can
【0011】 ここで、弾性体9を弾性体保持部4に圧入し易く、かつペン体を圧接したとき に弾性体9が変形し易くするために設計寸法を小さくすると、弾性体9や弾性体 保持部4の保持リブ5の製作時の寸法バラツキにより、弾性体9の保持リブ5に よる保持が不十分になることがあるが、弾性体抜け止め用の内向き突起6が形成 されているので、弾性体9は抜け落ちることなく確実に弾性体保持部4に保持す ることができる。Here, in order to easily press the elastic body 9 into the elastic body holding portion 4 and to easily deform the elastic body 9 when the pen body is pressed, if the design size is reduced, the elastic body 9 and the elastic body 9 are reduced. The holding ribs 5 of the holding portion 4 may not be sufficiently held by the holding ribs 5 of the elastic body 9 due to dimensional variation during manufacturing, but an inward projection 6 for preventing the elastic body from coming off is formed. Therefore, the elastic body 9 can be securely held in the elastic body holding portion 4 without falling off.
【0012】[0012]
以上説明したように、本考案は、キャップ本体の先端の弾性体保持部内に弾性 体が圧入され、キャップに装着された筆記具本体のペン体を弾性体でシールする 筆記具用キャップにおいて、弾性体保持部の壁面に弾性体抜け止め用の内向き突 起を形成したので、弾性体が確実に弾性体保持部に保持されて脱落することのな い筆記具用キャップとすることができる。 As described above, according to the present invention, the elastic body is pressed into the elastic body holding portion at the tip of the cap body, and the pen body of the writing instrument body attached to the cap is sealed with the elastic body. Since the inward protrusion for preventing the elastic body from coming off is formed on the wall surface of the portion, the writing tool cap can be securely held by the elastic body holding portion and will not fall off.
【図1】本考案実施例の断面図である。FIG. 1 is a sectional view of an embodiment of the present invention.
1 キャップ本体 2 縦リブ 3 内筒 4 弾性体保持部 5 保持リブ 6 内向き突起 9 弾性体 DESCRIPTION OF SYMBOLS 1 Cap body 2 Vertical ribs 3 Inner cylinder 4 Elastic body holding part 5 Holding rib 6 Inward projection 9 Elastic body
Claims (1)
弾性体が圧入され、キャップに装着された筆記具本体の
ペン体を該弾性体でシールする筆記具用キャップにおい
て、 前記弾性体保持部の壁面に弾性体抜け止め用の内向き突
起が形成されたことを特徴とする筆記具用キャップ。1. A writing instrument cap in which an elastic body is press-fitted into an elastic body holding portion at a tip of a cap body to seal a pen body of a writing instrument body mounted on the cap with the elastic body, wherein a wall surface of the elastic body holding portion is provided. A writing instrument cap, wherein an inward projection for preventing the elastic body from coming off is formed on the.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1995004452U JP3017029U (en) | 1995-04-17 | 1995-04-17 | Writing instrument cap |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1995004452U JP3017029U (en) | 1995-04-17 | 1995-04-17 | Writing instrument cap |
Publications (1)
Publication Number | Publication Date |
---|---|
JP3017029U true JP3017029U (en) | 1995-10-17 |
Family
ID=43152531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1995004452U Expired - Lifetime JP3017029U (en) | 1995-04-17 | 1995-04-17 | Writing instrument cap |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3017029U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06286388A (en) * | 1993-04-01 | 1994-10-11 | Sakura Color Prod Corp | Cap of writing tool and manufacture thereof |
-
1995
- 1995-04-17 JP JP1995004452U patent/JP3017029U/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06286388A (en) * | 1993-04-01 | 1994-10-11 | Sakura Color Prod Corp | Cap of writing tool and manufacture thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2550236Y2 (en) | Applicator | |
JP3017029U (en) | Writing instrument cap | |
JP6240691B2 (en) | Soft member mounting structure | |
JP3017030U (en) | Writing instrument cap | |
JPH0671164U (en) | Writing crown attachment structure | |
JPS6119036Y2 (en) | ||
JP2516608Y2 (en) | Applicator | |
JP3055213U (en) | Liquid applicator | |
JPH0425358Y2 (en) | ||
CN210003399U (en) | Wet cylinder sleeve and engine | |
JP3396603B2 (en) | Ballpoint pen cap | |
JP4409675B2 (en) | Writing instrument cap mounting structure | |
JPS599916Y2 (en) | High pressure gas filling device for pressurized ballpoint pen | |
JP4339017B2 (en) | Ballpoint pen cap | |
EP0703095A1 (en) | Applicator | |
JPS6139591Y2 (en) | ||
JP3001718U (en) | Ballpoint pen cap | |
JP3029408U (en) | Writing instrument cap | |
JPH084317Y2 (en) | Writing instrument cap | |
JP3000261U (en) | Ballpoint pen cap | |
JPH0723583U (en) | Writing instrument | |
JPS6144861Y2 (en) | ||
JPS623266Y2 (en) | ||
JP2532840Y2 (en) | Writing instrument cap | |
JPH025989Y2 (en) |