JP2016043498A - Writing instrument - Google Patents

Writing instrument Download PDF

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JP2016043498A
JP2016043498A JP2014167098A JP2014167098A JP2016043498A JP 2016043498 A JP2016043498 A JP 2016043498A JP 2014167098 A JP2014167098 A JP 2014167098A JP 2014167098 A JP2014167098 A JP 2014167098A JP 2016043498 A JP2016043498 A JP 2016043498A
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tip
knock
writing
shaft
diameter
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JP6356532B2 (en
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友義 加藤
Tomoyoshi Kato
友義 加藤
一豪 織戸
Kazutoshi Orito
一豪 織戸
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Mitsubishi Pencil Co Ltd
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Mitsubishi Pencil Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a knock type writing instrument capable of realizing the shock cushioning action, only by using a little component, without providing a new space.SOLUTION: An O ring 8 having flexibility is provided on the outer periphery of a knock part, and the O ring 8 is sandwiched between a ring receiving part 63 provided on the inner periphery in a shaft cylinder of not making longitudinal motion and a tail valve 7 fitted to the rear end of the shaft cylinder, so that frictional force operates between the knock part and the O ring 8. A shock of the longitudinal motion of the knock part is relieved by this frictional force.SELECTED DRAWING: Figure 3

Description

本発明は、ノック式のボールペン等、或いは芯が繰り出されるシャープペンシル等の筆記具に関する。   The present invention relates to a writing instrument such as a knock-type ballpoint pen or a mechanical pencil in which a lead is drawn out.

ノック式の筆記具や芯が繰り出されるシャープペンシルにおいては、部品の一部にバネ等の弾性部材が用いられている。ボールペンを例にすると、前記弾性部材を圧縮する方向に、ボールペンの後端に設けられたノック部を押圧すると、ノック部に連設された駆動機構によって、筆記先端が押し出され、筆記可能な状態となる。このとき、駆動機構のロック機構によって弾性部材は圧縮された状態が維持されている。再度、ノック部を押圧すると、ロック機構が解除され、弾性部材の付勢力によって、筆記先端は没入する。このノック部の押圧を繰り返すことで、筆記先端の出没が行われる。ロック機構が解除され、弾性部材の付勢力によって、筆記先端が後方に戻されるときに、弾性部材の付勢力によって、ノック部や駆動機構が周囲の部品に勢いよく叩き付けられることがある。ノック部の押圧は使用する際に、繰り返し行われるため、ノック部や駆動機構等に破損が生じてしまうことや、ノック時の衝撃によって筆記先端に空気が入ってしまいインクの出が悪くなるということがある。また、ノック時の衝撃は使用者にも不快感を与えることがある。   An elastic member such as a spring is used as a part of a part of a knock-type writing instrument or a mechanical pencil in which a lead is drawn out. Taking a ballpoint pen as an example, when the knocking portion provided at the rear end of the ballpoint pen is pressed in the direction of compressing the elastic member, the writing tip is pushed out by the drive mechanism connected to the knocking portion, and writing is possible It becomes. At this time, the elastic member is maintained in a compressed state by the lock mechanism of the drive mechanism. When the knock portion is pressed again, the lock mechanism is released, and the writing tip is immersed by the biasing force of the elastic member. By repeatedly pressing the knock portion, the writing tip appears and disappears. When the lock mechanism is released and the writing tip is returned backward by the urging force of the elastic member, the knocking portion and the drive mechanism may be slammed against the surrounding components by the urging force of the elastic member. Since the knocking portion is repeatedly pressed during use, the knocking portion, the drive mechanism, etc. may be damaged, or air may enter the writing tip due to the impact at the time of knocking, resulting in poor ink discharge. Sometimes. Also, the impact at the time of knocking may give the user unpleasant feeling.

そこで、駆動機構とは別に、ノック部の一部にダンパー空間を設け、衝撃を緩和させた特許文献1記載の発明や、駆動機構の一部にエアダンパー機構を採用した特許文献2記載の発明がある。   Accordingly, in addition to the drive mechanism, a damper space is provided in a part of the knock portion to reduce the impact, and an invention described in Patent Document 1 and an invention described in Patent Document 2 in which an air damper mechanism is adopted as a part of the drive mechanism. There is.

特開2008−179000JP2008-179000 特開2005−131942JP-A-2005-131942

前記特許文献1や特許文献2の発明においては、筆記具の一部に空間を設けるとともに、別途部品を複数使用するため、筆記具が大きくなってしまうとともに、材料費が上がってしまう。
そこで、本発明においては、ノック式のボールペン等、或いは芯が繰り出されるシャープペンシル等の筆記具において、新たな空間を設けずに、かつ、僅かな部品を使用するだけで、衝撃緩衝作用を実現することのできる筆記具を提供することを課題とする。
In the inventions of Patent Document 1 and Patent Document 2, a space is provided in a part of the writing instrument and a plurality of parts are separately used. Therefore, the writing instrument becomes large and the material cost increases.
Therefore, in the present invention, a shock-absorbing action is realized by using only a few parts without providing a new space in a writing instrument such as a knock-type ballpoint pen or a mechanical pencil in which a lead is drawn out. It is an object of the present invention to provide a writing instrument that can be used.

(第1の発明)
本発明における第1の発明は、先端に筆記先端32を有する筆記部材3と、
前記筆記部材3を収容する軸筒2と、
筆記部材3を後方に付勢する付勢部材4と、
当該軸筒2の後端に設けられ、筆記部材3の筆記先端32を該軸筒2の先端から押し出すノック部5と、を備える筆記具1であって、
該筆記具1には、軸筒2の後端付近の内周から内方に突出するフランジであるリング受部63と、該軸筒2の後端に装着され、前後方向に貫通穴が設けられた尾栓7と、に挟まれ、前記尾栓7の貫通穴と前記リング受部63の軸芯を貫通するノック部5に外挿されるOリング8が設けられていることを特徴とする。
(First invention)
The first invention in the present invention is a writing member 3 having a writing tip 32 at the tip,
A shaft cylinder 2 that houses the writing member 3, and
A biasing member 4 for biasing the writing member 3 backward;
A writing instrument 1 comprising a knock portion 5 provided at the rear end of the shaft tube 2 and pushing out the writing tip 32 of the writing member 3 from the tip of the shaft tube 2,
The writing instrument 1 is provided with a ring receiving portion 63 that is a flange projecting inwardly from the inner periphery near the rear end of the shaft cylinder 2, and a through hole provided in the front-rear direction. And an O-ring 8 that is inserted into a knock portion 5 that is sandwiched between the tail plug 7 and penetrates the through hole of the tail plug 7 and the shaft core of the ring receiving portion 63.

ここで、本発明における「筆記具1」とは、ボールペン、マーカーペン又はシャープペンシル等のノック式の筆記具である。つまり、筆記部材3は筆記先端32としてボールペン用チップや繊維束体を設けたリフィルであっても、芯繰り出し機構や芯収納部を備え、筆記先端を有したシャープペンシルリフィルであってもよい。
「ノック部5」とは、使用者が押圧する操作部であって、尾栓7の貫通穴とリング受部63の軸芯を貫通している。ノック部5は使用者が押圧すると前進し、押圧を開放すると付勢部材4によって後方に付勢された筆記部材3によって後方に押され後退する。
Here, the “writing instrument 1” in the present invention is a knock-type writing instrument such as a ballpoint pen, a marker pen, or a mechanical pencil. That is, the writing member 3 may be a refill provided with a ballpoint pen tip or a fiber bundle as the writing tip 32, or may be a mechanical pencil refill having a writing mechanism and a core storage portion and having a writing tip.
The “knock part 5” is an operation part pressed by the user, and penetrates the through hole of the tail plug 7 and the axial center of the ring receiving part 63. The knocking portion 5 moves forward when the user presses, and when the pressing is released, the knocking portion 5 is pushed backward by the writing member 3 biased rearward by the biasing member 4 and moves backward.

「Oリング8」とは、尾栓7とリング受部63との間に挟まれ、ノック部5に装着された伸縮性を有する部材である。自然長におけるOリング8の内径は、ノック部5の外径よりも僅かに小さい。ここで、伸縮性を有する部材とは、例えば、耐摩耗性を有するニトリルゴムがあげられ、伸縮性を有する部材であれば代用することができ、耐摩耗性の素材であれば、なお良い。また、Oリング8は前後に動かない尾栓7とリング受部63とに挟まれているため、Oリング8も前後に動かない。
(第2の発明)
本発明における第2の発明は第1の発明に加え、軸筒2の後端内部には、ノック部5及び筆記部材3の外周に設けられた内筒6が内装されており、
前記リング受部63は当該内筒6の内面に形成されることを特徴とする。
The “O-ring 8” is a stretchable member that is sandwiched between the tail plug 7 and the ring receiving portion 63 and attached to the knock portion 5. The inner diameter of the O-ring 8 in the natural length is slightly smaller than the outer diameter of the knock portion 5. Here, the member having stretchability includes, for example, nitrile rubber having wear resistance, and any member having stretchability can be substituted, and any material having wear resistance is more preferable. Further, since the O-ring 8 is sandwiched between the tail plug 7 that does not move back and forth and the ring receiving portion 63, the O-ring 8 also does not move back and forth.
(Second invention)
In addition to the first invention, the second invention in the present invention includes a knock portion 5 and an inner cylinder 6 provided on the outer periphery of the writing member 3 inside the rear end of the shaft cylinder 2,
The ring receiving portion 63 is formed on the inner surface of the inner cylinder 6.

ここで、「内筒6」は軸筒2の内部で前後に動かないように設けられている。   Here, the “inner cylinder 6” is provided so as not to move back and forth within the shaft cylinder 2.

本願発明は、上述のように構成されているので、ノック部が前後に動く際に、前後に動かないOリングとノック部との間には摩擦力が働く。この摩擦力によって、付勢部材から受ける後ろ方向の力が軽減される。よって、ノック時の衝撃を緩和することができる。ノック時の衝撃が緩和されるため、筆記部材への衝撃も緩和され、故障の起こりにくい筆記具を提供することができる。また、Oリングとノック部との間に働く摩擦力によって、ノック時に適度なサスペンション感を提供することができる。
また、フランジを内筒に設けることで、軸筒の内周を単純な形状にすることができ、容易に成型することができる。そのため、軸筒に使用する素材の幅が広がり、高級感のある筆記具を提供することができる。
Since this invention is comprised as mentioned above, when a knock part moves back and forth, a frictional force acts between the O-ring and knock part which do not move back and forth. This frictional force reduces the backward force received from the biasing member. Therefore, the impact at the time of knocking can be reduced. Since the impact at the time of knocking is alleviated, the impact on the writing member is also alleviated, and a writing instrument that is less likely to fail can be provided. In addition, an appropriate suspension feeling can be provided at the time of knocking by the frictional force acting between the O-ring and the knocking portion.
Further, by providing the flange on the inner cylinder, the inner periphery of the shaft cylinder can be made into a simple shape and can be easily molded. Therefore, the width of the material used for the shaft cylinder is widened, and a writing instrument with a high-class feeling can be provided.

ボールペンの側面図(A)と側面断面図(B)。The side view (A) and side sectional drawing (B) of a ball-point pen. ボールペンの内筒の前方斜視図(A)と平面図(B)と正面図(C)。The front perspective view (A), top view (B), and front view (C) of the inner cylinder of a ball-point pen. ボールペンの後端付近の要部の拡大断面図。The expanded sectional view of the principal part near the rear end of a ball-point pen. ボールペンのスペーサの前方斜視図(A)と正面図(B)と断面図(C)。The front perspective view (A), front view (B), and sectional view (C) of the spacer of the ballpoint pen.

以下、図面を参照しつつ、本発明の実施の形態を筆記具1としてノック式のボールペンを例に説明する。なお、本発明において、筆記具1及びその構成部品についての「前方」とは筆記具1の先端側を表し、「後方」とはその反対側を表すものとする。
図1(A)及び(B)に示すように、ボールペン1は、ノック式ボールペンであって、軸筒2と、該軸筒2に収容された筆記部材3としてのリフィル3と、該リフィル3を後方へ付勢する付勢部材4と、該軸筒2の後方より突出するノック部5と、該リフィル3を前後に動かす駆動機構と、からなる。具体的には、使用者がノック部5を押圧することで、リフィル3が駆動機構によって前後に動かされ、その移動によって、軸筒2の先端に設けられた先端孔23aからリフィル3の先端が出没可能となる。
Hereinafter, with reference to the drawings, an embodiment of the present invention will be described with a writing ball 1 as an example of a knock-type ballpoint pen. In the present invention, “front” of the writing instrument 1 and its component parts represents the tip side of the writing instrument 1, and “rear” represents the opposite side.
As shown in FIGS. 1A and 1B, a ballpoint pen 1 is a knock-type ballpoint pen, and includes a shaft cylinder 2, a refill 3 as a writing member 3 accommodated in the shaft cylinder 2, and the refill 3 The urging member 4 is urged rearward, the knock portion 5 projects from the rear of the shaft tube 2, and the drive mechanism for moving the refill 3 back and forth. Specifically, when the user presses the knock portion 5, the refill 3 is moved back and forth by the drive mechanism, and by the movement, the tip of the refill 3 is moved from the tip hole 23a provided at the tip of the shaft tube 2. It can be infested.

(軸筒2)
図1(A)に示すように、軸筒2は、先端が先細りした筒形状の先軸20と、先軸20の後端と螺合している、円筒形状の後軸21と、からなる。当該後軸21の後端には、ノック部5が貫通する孔が軸方向に形成された尾栓7が嵌められている。
図1(A)及び(B)に示すように、先軸20は先細りした筒形状をしており、円筒形状の筒部22と、筒部22の前方に連設された先細り形状をしたテーパ部23と、からなる。筒部22の後端の内部には、後軸21の先端と螺合する雌ネジ部22aが設けられている。テーパ部23の先端には、前方から順に先端孔23a、縮径部23b及び付勢部材座部23cが設けられている。先端孔23aの径は、リフィル3の先端に設けられたチップ32の外径よりも僅かに大きく、該先端孔23aから、チップ32の先端が出没する。縮径部23bの内径は、付勢部材4の内径よりも小さく、先端孔23aの径よりも大きい。付勢部材座部23cの内径は、前述の付勢部材4の外径と等しい。
(Shaft cylinder 2)
As shown in FIG. 1 (A), the shaft cylinder 2 includes a cylindrical front shaft 20 having a tapered tip, and a cylindrical rear shaft 21 screwed into the rear end of the front shaft 20. . At the rear end of the rear shaft 21, a tail plug 7 in which a hole through which the knock portion 5 passes is formed in the axial direction is fitted.
As shown in FIGS. 1A and 1B, the tip shaft 20 has a tapered cylindrical shape, and a cylindrical cylindrical portion 22 and a tapered tapered shape continuously provided in front of the cylindrical portion 22. Part 23. Inside the rear end of the cylindrical portion 22, a female screw portion 22a that is screwed with the tip of the rear shaft 21 is provided. A tip hole 23a, a reduced diameter portion 23b, and an urging member seat portion 23c are provided at the tip of the taper portion 23 in order from the front. The diameter of the tip hole 23a is slightly larger than the outer diameter of the tip 32 provided at the tip of the refill 3, and the tip of the tip 32 protrudes from the tip hole 23a. The inner diameter of the reduced diameter portion 23b is smaller than the inner diameter of the urging member 4 and larger than the diameter of the tip hole 23a. The inner diameter of the urging member seat 23c is equal to the outer diameter of the urging member 4 described above.

図1(A)及び(B)に示すように、後軸21は円筒形状をしており、後方外面には、クリップ24が突設されている。後軸21の先端には、雄ネジ25が嵌合されている。また、後軸21の内部には雄ネジ25の後方から順に、内筒付勢部材26及び内筒6が配設されている。雄ネジ25は前記先軸20の雌ネジ部22aと螺合する雄ネジ部25aと、雄ネジ部25aの後方に連設された嵌合部25bと、嵌合部25bの後方に連設された開口部25cとからなる。雄ネジ部25aの外周は雌ネジ部22aの内周と互いに螺合し、雄ネジ部25aの内径はリフィル3が貫通することができる程度の大きさである。嵌合部25bの外周は後軸21の先端と嵌合しており、嵌合部25bの内径は内筒付勢部材26の先端を収容する程度の大きさである。開口部25cの外径は後軸21の内径と等しく、開口部25cの内径は嵌合部25bの内径よりも大きい。内筒付勢部材26はリフィル3に外挿されており、雄ネジ部25aの後端から内筒6の先端の間に配置されたコイルバネである。内筒付勢部材26の先端の内径はリフィル3の外径よりも僅かに大きく、後端付近の径は、後方に向かって螺旋状に径が大きくなっており、その結果、後端の外径は内筒6の内径よりも大きい。   As shown in FIGS. 1A and 1B, the rear shaft 21 has a cylindrical shape, and a clip 24 projects from the rear outer surface. A male screw 25 is fitted to the tip of the rear shaft 21. An inner cylinder urging member 26 and an inner cylinder 6 are disposed in the rear shaft 21 in order from the rear of the male screw 25. The male screw 25 is connected to the male screw portion 25a screwed with the female screw portion 22a of the front shaft 20, the fitting portion 25b connected to the rear of the male screw portion 25a, and the rear of the fitting portion 25b. And an opening 25c. The outer periphery of the male screw portion 25a is screwed with the inner periphery of the female screw portion 22a, and the inner diameter of the male screw portion 25a is large enough to allow the refill 3 to pass therethrough. The outer periphery of the fitting portion 25b is fitted with the tip of the rear shaft 21, and the inner diameter of the fitting portion 25b is large enough to accommodate the tip of the inner cylinder urging member 26. The outer diameter of the opening 25c is equal to the inner diameter of the rear shaft 21, and the inner diameter of the opening 25c is larger than the inner diameter of the fitting portion 25b. The inner cylinder urging member 26 is externally inserted into the refill 3 and is a coil spring disposed between the rear end of the male screw portion 25a and the front end of the inner cylinder 6. The inner diameter of the tip of the inner cylinder biasing member 26 is slightly larger than the outer diameter of the refill 3, and the diameter in the vicinity of the rear end is spirally increased toward the rear. The diameter is larger than the inner diameter of the inner cylinder 6.

(内筒6)
図1(B)に示すように、内筒6は、後軸21の後端から、後軸21の略中央の位置までに配設された筒体である。内筒6は前記内筒付勢部材26によって後方に付勢されており、後端には、尾栓7が嵌入している。
図2(A)に示すように、内筒6の外観は、略円筒形状をしており、外径は後軸21に挿入し動かない程度の大きさである。内筒6の外周の一部は先端から後端に向かって軸心に対して平行に肉厚が削がれ平坦になっている(平坦部分60とする)。図2(B)に示すように、当該平坦部分60は180度等配で二カ所設けられている。
(Inner cylinder 6)
As shown in FIG. 1B, the inner cylinder 6 is a cylinder that is disposed from the rear end of the rear shaft 21 to a position substantially in the center of the rear shaft 21. The inner cylinder 6 is urged rearward by the inner cylinder urging member 26, and a tail plug 7 is fitted at the rear end.
As shown in FIG. 2 (A), the outer appearance of the inner cylinder 6 has a substantially cylindrical shape, and the outer diameter is such that it does not move when inserted into the rear shaft 21. A part of the outer periphery of the inner cylinder 6 is flattened by removing the thickness parallel to the axial center from the front end toward the rear end (referred to as a flat portion 60). As shown in FIG. 2B, the flat portion 60 is provided at two positions equally spaced by 180 degrees.

また、図1(B)に示すように、内筒6は先端から前方孔径部61、中央孔径部62、リング受部63及び後方孔径部64からなる。図1(B)及び図2(A)に示すように、前方孔径部61の内径は後述する回転子53のカム突起53aが摺り動くことができる程度の大きさであって、前記平坦部分60から軸心を中心に90度移動した位置に先端から軸方向に切り込みとして縦溝61aが設けられている。縦溝61aの先端から約1/4の位置には、縦溝61aに対して垂直に前方から見て反時計回りの方向に横切り込み61bが設けられている。前記縦溝61aは前方孔径部61に180度等配で二カ所設けられており、各縦溝61aに横切り込み61bが設けられている。ここで、図2(C)に示すように、縦溝61aのうち、横切り込み61bを境に前方に位置する三角形に切り欠かれた形状の切り込みを縦切り込み61eとし、前記縦切り込み61eと横切り込み61bとで形成される片を舌片61cとすると、舌片61cの外周側には突起61dが設けられている。また、前方孔径部61の内壁には、図示しない内筒カムが設けられており、内筒カムは、後述する回転子53を前後異なる二つの位置に係止する。図1(B)に示すように、中央孔径部62の内径は後述するノック棒50の先端に設けられた突起部50bが前後に移動することができる程度の大きさである。また、中央孔径部62には、回転子53の後方部分が挿入されている。リング受部63の内径は、後述するノック棒50の本体部分50aが前後に移動することが出来る程度の大きさで、ノック棒50の突起部50bの外径よりも小さい。後方孔径部64の内径は、前方孔径部61の内径よりも小さく、中央孔径部62の内径よりも大きい。図3に示すように、後方孔径部64の内周には尾栓7と嵌合することができるように、複数のリング状の内筒突条64aが設けられている。   As shown in FIG. 1B, the inner cylinder 6 includes a front hole diameter part 61, a center hole diameter part 62, a ring receiving part 63, and a rear hole diameter part 64 from the tip. As shown in FIGS. 1 (B) and 2 (A), the inner diameter of the front hole diameter portion 61 is such that a cam projection 53a of a rotor 53, which will be described later, can slide, and the flat portion 60 can be slid. A longitudinal groove 61a is provided as a cut in the axial direction from the tip at a position moved 90 degrees from the center of the shaft. A transverse cut 61b is provided at a position about ¼ from the tip of the longitudinal groove 61a in a counterclockwise direction when viewed from the front perpendicular to the longitudinal groove 61a. The vertical grooves 61a are provided at two positions equally spaced by 180 degrees in the front hole diameter portion 61, and a horizontal cut 61b is provided in each vertical groove 61a. Here, as shown in FIG. 2 (C), in the vertical groove 61a, a cut in a shape notched in a triangle located in front of the horizontal cut 61b is defined as a vertical cut 61e, and the vertical cut 61e and the horizontal cut 61e. If the piece formed by the notch 61b is a tongue piece 61c, a protrusion 61d is provided on the outer peripheral side of the tongue piece 61c. Further, an inner cylinder cam (not shown) is provided on the inner wall of the front hole diameter portion 61, and the inner cylinder cam locks a rotor 53 described later at two different positions. As shown in FIG. 1 (B), the inner diameter of the central hole diameter portion 62 is large enough to allow a protrusion 50b provided at the tip of a knock bar 50 described later to move back and forth. Further, the rear portion of the rotor 53 is inserted into the central hole diameter portion 62. The inner diameter of the ring receiving portion 63 is such a size that a main body portion 50a of the knock bar 50, which will be described later, can move back and forth, and is smaller than the outer diameter of the protrusion 50b of the knock bar 50. The inner diameter of the rear hole diameter portion 64 is smaller than the inner diameter of the front hole diameter portion 61 and larger than the inner diameter of the central hole diameter portion 62. As shown in FIG. 3, a plurality of ring-shaped inner cylindrical ridges 64 a are provided on the inner periphery of the rear hole diameter portion 64 so as to be fitted with the tail plug 7.

(尾栓7)
図1(B)に示すように、尾栓7は後軸21の内部に配設された内筒6の後端に嵌入され、尾栓7にはノック部5が貫通している。尾栓7は、後軸21の後端と当接する縁部71と該縁部71の前方に連設された尾栓本体部70とからなる。縁部71の外周には前方から後方に向かって径が窄まるようにテーパが設けられており、先端の外径は後軸21の外径と等しい。縁部71の内径は、後述するノック部5のノックキャップ51が摺動できる程度の大きさである。尾栓本体部70の内径は縁部71の内径と等しく、尾栓本体部70の下端には、図3に示すように、内方に突出した尾栓フランジ72が設けられている。尾栓フランジ72の内径は、後述するノック棒50の本体部分50aが前後に動くことができる程度の大きさである。また、尾栓本体部70の外周には、前記内筒6の後方孔径部64に設けられた複数の内筒突条64aと嵌合することができるように同様にリング条の尾栓突条70aが複数設けられている。尾栓7の尾栓フランジ72と内筒6のリング受部63との間には、自然長の径がノック棒50の本体部分50aよりも僅かに小さいニトリルゴム製のOリング8が設けられている。なお、Oリング8の素材はニトリルゴム製に限定されるものでなく、伸縮性を有する素材であれば代用することができる。
(Tail plug 7)
As shown in FIG. 1B, the tail plug 7 is fitted into the rear end of the inner cylinder 6 disposed inside the rear shaft 21, and the knock portion 5 passes through the tail plug 7. The tail plug 7 includes an edge portion 71 that comes into contact with the rear end of the rear shaft 21 and a tail plug body portion 70 that is connected to the front of the edge portion 71. A taper is provided on the outer periphery of the edge portion 71 so that the diameter is narrowed from the front toward the rear, and the outer diameter of the tip is equal to the outer diameter of the rear shaft 21. The inner diameter of the edge portion 71 is large enough to allow a knock cap 51 of the knock portion 5 described later to slide. The inner diameter of the tail plug body 70 is equal to the inner diameter of the edge 71, and a tail plug flange 72 protruding inward is provided at the lower end of the tail plug body 70 as shown in FIG. The inner diameter of the tail plug flange 72 is large enough to allow a main body portion 50a of a knock bar 50 described later to move back and forth. Further, on the outer periphery of the tail plug main body 70, the ring plug tail plug ridges are similarly fitted so as to be fitted with a plurality of inner cylinder ridges 64a provided in the rear hole diameter portion 64 of the inner cylinder 6. A plurality of 70a are provided. Between the tail plug flange 72 of the tail plug 7 and the ring receiving portion 63 of the inner cylinder 6, an O-ring 8 made of nitrile rubber whose natural length is slightly smaller than the main body portion 50a of the knock bar 50 is provided. ing. The material of the O-ring 8 is not limited to nitrile rubber, and any material having elasticity can be used instead.

(リフィル3)
図1(B)に示すように、リフィル3は筒状のインク収容管30と、該インク収容管30の先端に固定された継手31と、該継手31の先端に固定されたチップ32と、を有する。また、前記継手31の外周には先軸20内を摺動できるスペーサ9が設けられている。
インク収容管30の内部には図示しないインクが収容されている。
継手31はインク収容管30とチップ32とを固定しており、収容管固定部31aと、該収容管固定部31aに連設されたインク誘導部31bと、該インク誘導部31bに連設されたチップ固定部31cと、からなる。収容管固定部31aは、筒状の内筒部31dと、該内筒部31dと同軸に設けられ、内筒部31dよりも径が大きい筒状の外筒部31eと、を有している。内筒部31dの外径はインク収容管30の内径よりもわずかに大きく、外筒部31eの内径はインク収容管30の外径よりもわずかに小さい。そして、内筒部31dと外筒部31eとの間隙にインク収容管30の先端付近が圧入されることで、インク収容管30の先端に継手31が固定される。インク誘導部31bはインク収容管30に入っているインクをチップ32へと誘導する。インク誘導部31bの外径は後述する付勢部材4の内径よりもわずかに小さく、内部にはインクが逆流することを防ぐために、逆流防止機構が設けられている。チップ固定部31cは、インク誘導部31bに連設しており、外径は先軸20の縮径部23bよりも小さく、先端孔23aよりもわずかに大きい。チップ固定部31cの先端の内径は、チップ32の後端の外径よりもわずかに小さい。チップ32の後端付近がチップ固定部31cの後端に圧入されることでチップ32は継手31に固定される。チップ32は、先端に筆記ボール32aが抱持されており、チップ32の内部空間には、筆記ボール32aを前方に付勢するチップ用付勢部材32bが収容されている。インク収容管30に入っているインクが継手31及びチップ32を通り、チップ32先端に抱持されている筆記ボール32aが回転することでインクが吐出され、筆記可能となる。
(Refill 3)
As shown in FIG. 1B, the refill 3 includes a cylindrical ink storage tube 30, a joint 31 fixed to the tip of the ink storage tube 30, a tip 32 fixed to the tip of the joint 31, Have In addition, a spacer 9 that can slide in the front shaft 20 is provided on the outer periphery of the joint 31.
Inside the ink storage tube 30, ink (not shown) is stored.
The joint 31 fixes the ink storage tube 30 and the chip 32, and is connected to the storage tube fixing portion 31a, the ink guide portion 31b connected to the storage tube fixing portion 31a, and the ink guide portion 31b. Chip fixing portion 31c. The housing tube fixing portion 31a includes a cylindrical inner cylinder portion 31d and a cylindrical outer cylinder portion 31e that is provided coaxially with the inner cylinder portion 31d and has a larger diameter than the inner cylinder portion 31d. . The outer diameter of the inner cylinder portion 31d is slightly larger than the inner diameter of the ink storage tube 30, and the inner diameter of the outer cylinder portion 31e is slightly smaller than the outer diameter of the ink storage tube 30. The joint 31 is fixed to the tip of the ink storage tube 30 by press-fitting the vicinity of the tip of the ink storage tube 30 into the gap between the inner cylinder portion 31d and the outer cylinder portion 31e. The ink guide 31b guides the ink contained in the ink storage tube 30 to the chip 32. The outer diameter of the ink guiding portion 31b is slightly smaller than the inner diameter of the urging member 4 described later, and a backflow prevention mechanism is provided in the inside to prevent the ink from flowing back. The tip fixing part 31c is connected to the ink guiding part 31b, and has an outer diameter smaller than the reduced diameter part 23b of the front shaft 20 and slightly larger than the tip hole 23a. The inner diameter of the tip end of the chip fixing portion 31c is slightly smaller than the outer diameter of the rear end of the chip 32. The tip 32 is fixed to the joint 31 by press-fitting the vicinity of the rear end of the tip 32 into the rear end of the tip fixing portion 31c. The tip 32 has a writing ball 32a held at the tip, and a tip biasing member 32b for biasing the writing ball 32a forward is accommodated in the internal space of the tip 32. The ink contained in the ink containing tube 30 passes through the joint 31 and the chip 32, and the writing ball 32a held at the tip of the chip 32 is rotated so that the ink is ejected and writing is possible.

(スペーサ9)
図1(B)に示すように、スペーサ9は前記継手31の外周に設けられており、収容管固定部31aの外周を覆う広径部90と、該広径部90に連設した先細り形状をしたスペーサテーパ部91と、該スペーサテーパ部91に連設し、前記チップ固定部31cの外周に設けられたスペーサ縮径部92とからなる。
広径部90の外径は先軸20の筒部22の内径と略等しく、先軸20内の筒部22を摺動できる程度の大きさとなっており、図4(B)に示すように、後端は外周に沿って面取りされている。広径部90の内径は収容管固定部31aの外径と略等しい。スペーサテーパ部91は、内径が収容管固定部31aの外径からチップ固定部31cの外径に先細りするように形成された円錐形状をしている。スペーサ縮径部92は円筒形状をしており、内径がチップ固定部31cの外径と等しく、先端には、図4(C)に示すように、僅かに広径した座部92aが設けられている。座部92aの内径は付勢部材4の外径よりも僅かに小さく、付勢部材4が圧入されている。
(Spacer 9)
As shown in FIG. 1B, the spacer 9 is provided on the outer periphery of the joint 31, and has a wide diameter portion 90 that covers the outer periphery of the receiving tube fixing portion 31a, and a tapered shape that is continuous with the wide diameter portion 90. The spacer taper portion 91 is formed, and the spacer diameter-reduced portion 92 is provided continuously to the spacer taper portion 91 and provided on the outer periphery of the chip fixing portion 31c.
The outer diameter of the wide diameter portion 90 is substantially equal to the inner diameter of the cylindrical portion 22 of the front shaft 20, and is large enough to slide the cylindrical portion 22 in the front shaft 20, as shown in FIG. The rear end is chamfered along the outer periphery. The inner diameter of the wide diameter portion 90 is substantially equal to the outer diameter of the receiving tube fixing portion 31a. The spacer taper portion 91 has a conical shape formed so that the inner diameter tapers from the outer diameter of the receiving tube fixing portion 31a to the outer diameter of the tip fixing portion 31c. The spacer reduced diameter portion 92 has a cylindrical shape, the inner diameter is equal to the outer diameter of the tip fixing portion 31c, and a seat portion 92a having a slightly wider diameter is provided at the tip, as shown in FIG. ing. The inner diameter of the seat portion 92a is slightly smaller than the outer diameter of the biasing member 4, and the biasing member 4 is press-fitted.

(付勢部材4)
図1(B)に示すように、付勢部材4はスペーサ9の座部92a(図4(C)参照)及び先軸20の付勢部材座部23cの間に位置するコイルバネである。付勢部材4の後端は座部92aに圧入されており、先端は付勢部材座部23cに当接している。また、付勢部材4はスペーサ9を後方に付勢し、その結果、リフィル3も後方に付勢される。
(ノック部5)
図1(B)に示すように、ノック部5は、軸筒2の後方より突出し、使用者が押圧する操作部位である。ノック部5はノック棒50とノック棒50の後端に螺着されたノックキャップ51と、ノック棒50及びノックキャップ51が軸筒2の後端から突出し得るように後方に向けて付勢する圧縮部材52と、からなる。ノック棒50は後端がノックキャップ51と螺合することができるように形成された本体部分50aと、本体部分50aの前方に連設された、内筒6のリング受部63の内径よりも外径が大きい突起部50bとからなる。突起部50bの外径はリング受部63よりも大きいため、突起部50bはリング受部63よりも後方に移動しない結果、ノック部5は軸筒2から脱離しない。また、ノック棒50の先端には後述する回転子53が接しており、接する部位にノック棒50と回転子53とが関わり合うことで、回転子53が所定の角度ごとに一方向に回転する図示しない回転機構が設けられている。
(Biasing member 4)
As shown in FIG. 1B, the biasing member 4 is a coil spring located between the seat 92a of the spacer 9 (see FIG. 4C) and the biasing member seat 23c of the front shaft 20. The rear end of the urging member 4 is press-fitted into the seat 92a, and the tip is in contact with the urging member seat 23c. Further, the biasing member 4 biases the spacer 9 backward, and as a result, the refill 3 is also biased backward.
(Knock part 5)
As shown in FIG. 1 (B), the knock portion 5 is an operation portion that protrudes from the rear of the shaft tube 2 and is pressed by the user. The knock portion 5 is urged rearward so that the knock rod 51, the knock cap 51 screwed to the rear end of the knock rod 50, and the knock rod 50 and the knock cap 51 can protrude from the rear end of the shaft cylinder 2. And a compression member 52. The knock bar 50 has a main body portion 50a formed so that its rear end can be screwed with the knock cap 51, and an inner diameter of the ring receiving portion 63 of the inner cylinder 6 connected to the front of the main body portion 50a. The protrusion 50b has a large outer diameter. Since the outer diameter of the protruding portion 50b is larger than that of the ring receiving portion 63, the protruding portion 50b does not move rearward from the ring receiving portion 63, so that the knock portion 5 is not detached from the shaft tube 2. Further, a rotor 53, which will be described later, is in contact with the tip of the knock bar 50, and the rotor 53 rotates in one direction at every predetermined angle when the knock bar 50 and the rotor 53 are engaged with each other. A rotation mechanism (not shown) is provided.

(駆動機構)
駆動機構は、ノック部5と、ノック部5の先端に接する回転子53と、内筒6に設けられた図示しない内筒カムと、付勢部材4と、からなる機構である。
図1(B)に示すように、回転子53は、リフィル3とノック棒50とに挟まれたところに位置する。回転子53の外周面には内筒6に設けられた内筒カムと係合するカム突起53aが設けられている。回転子53のカム突起53aが内筒カムと前後異なる二つの位置で係合することで、回転子53は内筒カムに前後異なる二つの位置で係止される。ここで、内筒カムとカム突起53aとの前後異なる二つの位置での係合状態を没状態と出状態とする。没状態において、回転子53はノック棒50の先端と当接する位置で内筒カムに係止され、リフィル3は先端が軸筒2の中に収納される位置となる。一方、出状態においては、回転子53は軸筒2内において、没状態のときよりも前方の位置で内筒カムに係止され、リフィル3は先端が軸筒2の先端孔23aから突出する位置となる。回転子53と内筒カムとの没状態及び出状態は、前述の回転機構によって回転子53が所定の角度ずつ回転することで繰り返される。また、回転機構はノック棒50より押圧されることで働き、ノック部5を押圧する度に所定の角度ごとに回転子53が回転する。更に、回転子53はノック部5を押圧している間は、ノック部5によって押圧され前進するが、ノック部5への押圧を開放すると、後方に付勢されたリフィル3によって後方に付勢され、内筒カムに係止される。
(Drive mechanism)
The drive mechanism is a mechanism including a knock portion 5, a rotor 53 in contact with the tip of the knock portion 5, an inner cylinder cam (not shown) provided in the inner cylinder 6, and a biasing member 4.
As shown in FIG. 1B, the rotor 53 is located between the refill 3 and the knock bar 50. A cam projection 53 a that engages with an inner cylinder cam provided on the inner cylinder 6 is provided on the outer peripheral surface of the rotor 53. The cam 53a of the rotor 53 is engaged with the inner cylinder cam at two positions different from the front and rear, so that the rotor 53 is locked to the inner cylinder cam at two different positions. Here, the engaged state at two different positions of the inner cylinder cam and the cam projection 53a in the front and rear are defined as a depressed state and an extended state. In the submerged state, the rotor 53 is locked to the inner cylinder cam at a position where it abuts against the tip of the knock bar 50, and the refill 3 is at a position where the tip is housed in the shaft cylinder 2. On the other hand, in the extended state, the rotor 53 is locked to the inner cylinder cam in the shaft tube 2 at a position ahead of the retracted state, and the tip of the refill 3 projects from the tip hole 23a of the shaft tube 2. Position. The sinking state and the protruding state of the rotor 53 and the inner cylinder cam are repeated by rotating the rotor 53 by a predetermined angle by the above-described rotating mechanism. Further, the rotation mechanism works by being pressed from the knock bar 50, and the rotor 53 rotates at a predetermined angle each time the knock portion 5 is pressed. Further, while the rotor 53 is pressing the knock portion 5, the rotor 53 is pushed forward by the knock portion 5. However, when the pressure on the knock portion 5 is released, the rotor 53 is biased backward by the refill 3 biased backward. And is locked to the inner cylinder cam.

つまり、駆動機構とは、ノック部5への押圧と開放を繰り返すことで、回転子53が所定の角度ずつ回転し、異なる2つの位置に固定され、その結果、リフィル3の先端が軸筒2の前方挿入孔23aから出没される機構である。
(まとめ)
本実施形態におけるボールペン1は次のような作用及び効果を有する。
継手31の外周には、先軸20の内部を摺動可能なスペーサ9が設けられている。これによって、リフィル3の位置は軸筒2の軸心からずれにくくなる。また、スペーサ9の先端には、付勢部材4は座部92aと嵌合しているため、付勢部材4は軸筒2内で位置が固定される。よって、スペーサ9が設けられたことで、リフィル3及び付勢部材4の位置が軸筒2の軸心からずれにくくなり、リフィル3の先端と付勢部材4及び先軸20の内周面とが当たることが防止される。また、リフィル3を交換する際にも、スペーサ9がリフィル3の挿入をガイドしてくれるため、交換が容易となる。
In other words, the drive mechanism means that the rotor 53 is rotated by a predetermined angle by repeatedly pressing and releasing the knock portion 5 and is fixed at two different positions. As a result, the tip of the refill 3 is fixed to the shaft cylinder 2. This is a mechanism that is projected and retracted from the front insertion hole 23a.
(Summary)
The ballpoint pen 1 in the present embodiment has the following operations and effects.
On the outer periphery of the joint 31, a spacer 9 is provided that can slide inside the tip shaft 20. As a result, the position of the refill 3 is not easily displaced from the axis of the shaft tube 2. Further, since the urging member 4 is fitted to the seat 92a at the tip of the spacer 9, the position of the urging member 4 is fixed in the shaft tube 2. Therefore, the provision of the spacer 9 makes it difficult for the position of the refill 3 and the biasing member 4 to deviate from the axis of the shaft cylinder 2, and the tip of the refill 3 and the inner peripheral surface of the biasing member 4 and the tip shaft 20 Is prevented from hitting. Further, when the refill 3 is replaced, the spacer 9 guides the insertion of the refill 3, so that the replacement is easy.

更に、内筒6は外径が後軸21の内径と略等しく、外周に突起61dが設けられているため、後軸21の中に挿入した際に、突起61dが後軸21の内壁と当接し、舌片61cが内側に押圧され撓む。舌片61cが内側に撓むことで、リフィル3を外した際に回転子53が舌片61cに引っかかるため、回転子53の落下を防止できる。回転子53が落下しないため、軸筒2の中に配設された内筒付勢部材26との干渉を防ぐことができる。また、回転子53が前後に大きく動かないため、リフィル3を後軸21に挿入する際も容易に挿入することができる。更に、内筒6は、後軸21とは別に形成されるため、後軸21の形状を円筒形状にすることができる。これによって、後軸21の素材として、金属や木材を使用することができることとなり、高級感のあるボールペンを提供することができる。   Furthermore, since the outer diameter of the inner cylinder 6 is substantially the same as the inner diameter of the rear shaft 21 and the protrusion 61d is provided on the outer periphery, the protrusion 61d contacts the inner wall of the rear shaft 21 when inserted into the rear shaft 21. The tongue piece 61c is pressed inward and bent. Since the tongue piece 61c bends inward, the rotor 53 is caught by the tongue piece 61c when the refill 3 is removed, so that the rotor 53 can be prevented from falling. Since the rotor 53 does not fall, interference with the inner cylinder urging member 26 disposed in the shaft cylinder 2 can be prevented. In addition, since the rotor 53 does not move greatly back and forth, the refill 3 can be easily inserted into the rear shaft 21. Furthermore, since the inner cylinder 6 is formed separately from the rear shaft 21, the shape of the rear shaft 21 can be made cylindrical. As a result, metal or wood can be used as the material of the rear shaft 21, and a high-quality ballpoint pen can be provided.

加えて、内筒6のリング受部63と尾栓7の尾栓フランジ72との間に設けられたOリング8は、ノック棒50の外径よりも僅かに径が小さいため、ノック棒50が前後に移動する際にOリング8とノック棒50との間に摩擦力が働く。この摩擦力によって、使用者がノック部5を押圧する際に、サスペンション感を生む。また、ノック部5を押圧して、開放する際の衝撃を摩擦力によって軽減することができる。そのため、リフィル3に対する衝撃が緩和され、リフィル3内に空気が侵入することを防ぎ、インクのかすれやインクが出にくくなることを防ぐことができる。   In addition, since the O-ring 8 provided between the ring receiving portion 63 of the inner cylinder 6 and the tail plug flange 72 of the tail plug 7 is slightly smaller in diameter than the outer diameter of the knock bar 50, the knock bar 50 A frictional force acts between the O-ring 8 and the knock bar 50 when the is moved back and forth. This frictional force creates a feeling of suspension when the user presses the knock portion 5. Further, the impact when the knock portion 5 is pressed and released can be reduced by the frictional force. For this reason, the impact on the refill 3 is alleviated, air can be prevented from entering the refill 3, and ink fading and ink can be prevented from becoming difficult to come out.

(その他の実施形態)
本発明は、ノック式のボールペン1に限ったものでなく、ノック式の筆記具であればよく、筆記部材3はボールペン用のリフィルに限るものでない。例えば、チップ32をマーカーペン用の繊維束体や万年筆用の先端にすることで、マーカーペンや万年筆とすることも可能である。
また、筆記具1は、筆記部材3を芯繰り出し機構や芯収納部を備え、筆記先端を有したシャープペンシルリフィルとした、シャープペンシルであってもよい。
(Other embodiments)
The present invention is not limited to the knock-type ballpoint pen 1 but may be any knock-type writing instrument, and the writing member 3 is not limited to the refill for the ballpoint pen. For example, a marker pen or a fountain pen can be formed by making the tip 32 a fiber bundle for a marker pen or a tip for a fountain pen.
Further, the writing instrument 1 may be a mechanical pencil in which the writing member 3 is provided with a lead feeding mechanism and a lead storage part, and is a mechanical pencil refill having a writing tip.

本発明はノック式の筆記具に利用することができる。   The present invention can be used for a knock-type writing instrument.

1 筆記具(ボールペン) 2 軸筒
3 筆記部材(リフィル) 4 付勢部材
5 ノック部 6 内筒
7 尾栓 8 Oリング
9 スペーサ 20 先軸
21 後軸 22 筒部
22a 雌ネジ部 23 テーパ部
23a 先端孔 23b 縮径部
23c 付勢部材座部 24 クリップ
25 雄ネジ 25a 雄ネジ部
25b 嵌合部 25c 開口部
26 内筒付勢部材 30 インク収容管
31 継手 31a 収容管固定部
31b インク誘導部 31c チップ固定部
31d 内筒部 31e 外筒部
32 筆記先端(チップ) 32a 筆記ボール
32b チップ用付勢部材 50 ノック棒
50a 本体部分 50b 突起部
51 ノックキャップ 52 圧縮部材
53 回転子 53a カム突起
60 平坦部分 61 前方孔径部
61a 縦溝 61b 横切り込み
61c 舌片 61d 突起
61e 縦切り込み 62 中央孔径部
63 リング受部 64 後方孔径部
64a 内筒突条 70 尾栓本体部
70a 尾栓突条 71 縁部
72 尾栓フランジ 90 広径部
91 スペーサテーパ部 92 スペーサ縮径部
92a 座部
1 Writing instrument (ballpoint pen) 2 Shaft cylinder
3 Writing member (refill) 4 Biasing member
5 Knock part 6 Inner tube
7 Tail plug 8 O-ring
9 Spacer 20 Lead shaft
21 Rear shaft 22 Tube
22a Female thread 23 Taper
23a Tip hole 23b Reduced diameter part
23c Biasing member seat 24 clip
25 Male thread 25a Male thread
25b Mating part 25c Opening
26 Inner tube biasing member 30 Ink storage tube
31 Fitting 31a Housing tube fixing part
31b Ink guide part 31c Tip fixing part
31d Inner tube 31e Outer tube
32 Writing tip (chip) 32a Writing ball
32b Biasing member for tip 50 knock bar
50a Body part 50b Projection
51 Knock cap 52 Compression member
53 Rotor 53a Cam projection
60 Flat part 61 Front hole diameter part
61a Vertical groove 61b Horizontal notch
61c tongue 61d protrusion
61e Longitudinal cut 62 Central hole diameter
63 Ring receiving part 64 Rear hole diameter part
64a Inner tube ridge 70 Main part of tail plug
70a Tail plug ridge 71 Edge
72 Tail plug flange 90 Wide diameter part
91 Spacer taper part 92 Spacer reduced diameter part
92a seat

Claims (2)

先端に筆記先端を有する筆記部材と、
前記筆記部材を収容する軸筒と、
筆記部材を後方に付勢する付勢部材と、
当該軸筒の後端に設けられ、筆記部材の筆記先端を該軸筒の先端から押し出すノック部と、を備える筆記具であって、
軸筒の後端付近の内周から内方に突出するフランジであるリング受部と、該軸筒の後端に装着され、前後方向に貫通穴が設けられた尾栓と、に挟まれ、前記尾栓の貫通穴と前記リング受部の軸芯を貫通するノック部に外挿されるOリングが設けられていることを特徴とする筆記具。
A writing member having a writing tip at the tip;
An axial tube that houses the writing member;
A biasing member that biases the writing member backward;
A writing instrument provided at a rear end of the shaft cylinder, and a knock portion that pushes out a writing tip of a writing member from the tip of the shaft cylinder,
Sandwiched between a ring receiving portion that is a flange projecting inward from the inner periphery near the rear end of the shaft tube, and a tail plug mounted on the rear end of the shaft tube and provided with a through hole in the front-rear direction; A writing instrument, wherein an O-ring is provided to be inserted into a knock portion penetrating the through hole of the tail plug and the axis of the ring receiving portion.
軸筒の後端内部には、ノック部及び筆記部材の外周に設けられた内筒が内装されており、
前記リング受部は当該内筒の内面に形成されることを特徴とする請求項1記載の筆記具。
Inside the rear end of the shaft cylinder, an inner cylinder provided on the outer periphery of the knock part and the writing member is internally provided,
The writing instrument according to claim 1, wherein the ring receiving portion is formed on an inner surface of the inner cylinder.
JP2014167098A 2014-08-20 2014-08-20 Writing instrument Active JP6356532B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018187856A (en) * 2017-05-09 2018-11-29 株式会社トンボ鉛筆 Haunting body operating tool

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JPS4834629U (en) * 1971-08-30 1973-04-25
JPS5010332U (en) * 1973-05-25 1975-02-03
JPS56123290U (en) * 1980-02-21 1981-09-19
JPS6054896A (en) * 1983-09-07 1985-03-29 株式会社シンプル大平 Double knock type pencil
JPS60191488U (en) * 1984-05-31 1985-12-19 ぺんてる株式会社 Shape pencil with built-in cursive writing
JPH01280597A (en) * 1988-05-06 1989-11-10 Ankosu Kk Shock-absorbing mechanism for knock-type writing implement
JPH03112386U (en) * 1990-03-03 1991-11-18
JPH1016479A (en) * 1996-06-27 1998-01-20 Pilot Corp:The Push-out type writing implement
JP2000218989A (en) * 1999-02-03 2000-08-08 Zebra Pen Corp Knocking type writing utensil
JP2004082431A (en) * 2002-08-26 2004-03-18 Tombow Pencil Co Ltd Writing utensil
WO2007083424A1 (en) * 2006-01-19 2007-07-26 Zebra Co., Ltd. Retractable writing implement

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Publication number Priority date Publication date Assignee Title
JPS4834629U (en) * 1971-08-30 1973-04-25
JPS5010332U (en) * 1973-05-25 1975-02-03
JPS56123290U (en) * 1980-02-21 1981-09-19
JPS6054896A (en) * 1983-09-07 1985-03-29 株式会社シンプル大平 Double knock type pencil
JPS60191488U (en) * 1984-05-31 1985-12-19 ぺんてる株式会社 Shape pencil with built-in cursive writing
JPH01280597A (en) * 1988-05-06 1989-11-10 Ankosu Kk Shock-absorbing mechanism for knock-type writing implement
JPH03112386U (en) * 1990-03-03 1991-11-18
JPH1016479A (en) * 1996-06-27 1998-01-20 Pilot Corp:The Push-out type writing implement
JP2000218989A (en) * 1999-02-03 2000-08-08 Zebra Pen Corp Knocking type writing utensil
JP2004082431A (en) * 2002-08-26 2004-03-18 Tombow Pencil Co Ltd Writing utensil
WO2007083424A1 (en) * 2006-01-19 2007-07-26 Zebra Co., Ltd. Retractable writing implement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018187856A (en) * 2017-05-09 2018-11-29 株式会社トンボ鉛筆 Haunting body operating tool

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