JP2011073388A - Writing implement - Google Patents

Writing implement Download PDF

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JP2011073388A
JP2011073388A JP2009229283A JP2009229283A JP2011073388A JP 2011073388 A JP2011073388 A JP 2011073388A JP 2009229283 A JP2009229283 A JP 2009229283A JP 2009229283 A JP2009229283 A JP 2009229283A JP 2011073388 A JP2011073388 A JP 2011073388A
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refill
spring joint
writing instrument
fitted
operation member
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JP5367527B2 (en
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Yoshio Noguchi
芳男 野口
Tadao Odaka
忠夫 小高
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Kotobuki and Co Ltd
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Kotobuki and Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a writing implement that can absorb variation to surely connect a refill to an operating member even with the inner diameter variation of a spare refill when replacing the refill, and smoothly guide the refill after replaced toward a tip hole of a shaft cylinder to prevent the refill from being retained in the shaft cylinder. <P>SOLUTION: The writing implement includes the shaft cylinder 1; at least one refill 2 inserted and stored in a longitudinally movable manner in the shaft cylinder 1 and energized in a retreat direction; and the operating member 4 moving the refill 2 forward against the retreat energizing force. A spring joint 5 elastically deformable in the radial direction of the refill 2 is mounted to the front part of the operating member 4, and the spring joint 5 is engaged in pressure contact with the rear inner surface of the refill 2 by radial spring force in a state of the front part of the operating member 4 being fitted to the rear end side interior of the refill 3 through the spring joint 5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、少なくとも1本のレフィールを備え、ノックまたは回転等の操作により繰り出される筆記具に関し、特にレフィールと操作部材を特徴的な継手手段で連結した筆記具に関するものである。   The present invention relates to a writing instrument that includes at least one refill and is drawn out by an operation such as knocking or rotation, and more particularly to a writing instrument in which a refill and an operation member are connected by a characteristic joint means.

従来のレフィールと操作部材を継手手段で連結した複数の筆記体を収容する複合筆記具は、軸筒と、該軸筒の内部に前後進可能に挿入収納されて後方に付勢された複数本のレフィールと、該レフィールのそれぞれを後方付勢力に抗して個々に前進移動させるノック部材(操作部材)とを備え、前記ノック部材を軸筒の側面に沿って軸方向へスライドノックすることで、前記レフィールが軸筒の先端中心孔に向かって傾斜しながら前進移動することにより、前記レフィール先端の筆記部が軸筒の先端中心孔から突出する構造となっている。   A composite writing instrument that accommodates a plurality of writing bodies in which a conventional refill and an operation member are connected by joint means includes a shaft tube, and a plurality of pieces that are inserted and housed in the shaft tube so as to be able to move forward and backward and are urged rearward. Comprising a refill and a knock member (operation member) that individually moves each refill against a rear biasing force, and sliding the knock member in the axial direction along the side surface of the shaft tube; When the refill moves forward while inclining toward the tip center hole of the shaft tube, the writing portion at the tip of the refill projects from the tip center hole of the shaft tube.

このような構造の筆記具では、前記ノック部材のスライドノック時にレフィールが傾斜しながら前進移動するため、それらのノック部材とレフィールを確実に結合する必要がある。その結合手段として、従来は、前記ノック部材の前端部に、前記レフィールとの結合部となる軸状の嵌入部を該ノック部材と同様の樹脂材で一体成形し、その嵌入部をレフィールの後端開口部に直接嵌入している(例えば、特許文献1参照)。   In the writing instrument having such a structure, when the knock member slides and knocks, the refill moves forward while inclining. Therefore, it is necessary to securely connect the knock member and the refill. Conventionally, as a connecting means, a shaft-like insertion portion that becomes a connection portion with the refill is integrally formed at the front end portion of the knock member with a resin material similar to the knock member, and the insertion portion is formed after the refill. It fits directly into the end opening (see, for example, Patent Document 1).

特開2007−45032号公報(〔0042〕、〔0043〕および〔図1〕)JP 2007-45032 ([0042], [0043] and [FIG. 1])

従来の複合筆記具は以上のように構成され、ノック部材とレフィールの結合手段として、ノック部材の前端部に該ノック部材と同様の樹脂材で一体成形された軸状の嵌入部をレフィールの後端開口部に直接嵌入しているが、レフィール交換に適用する新たなレフィールには内径のバラツキがあるため、レフィール交換に際して新たに用いるレフィールの後端開口部にノック部材の嵌入部が適合しなくなり、該嵌入部をレフィールの後端開口部に無理やり嵌入することによる前記嵌入部の摩耗や、該嵌入部のレフィールに対する嵌入が緩み過ぎることでノック部材とレフィールの嵌合力が緩くなり、その結果、ノック部材とレフィールの結合強度(連結強度)が損なわれ易いという課題があった。   The conventional composite writing instrument is configured as described above. As a means for connecting the knock member and the refill, the rear end of the refill has a shaft-like insertion portion integrally formed of the same resin material as the knock member at the front end of the knock member. Although it is directly inserted into the opening, since there is a variation in the inner diameter of the new refill applied to the refill exchange, the insertion part of the knock member does not fit in the rear end opening of the refill that is newly used in the refill exchange, The fitting force between the knock member and the refill becomes loose due to wear of the fit portion due to the forced insertion of the fit portion into the rear end opening of the refill, or the fitting of the fit portion with respect to the refill is too loose. There existed a subject that the joint strength (connection strength) of a member and a refill was easy to be impaired.

特に複合筆記具に適用するレフィールとして、最近は軸筒を細くしてスリム化する傾向がみられ、その結果、金属製パイプのものを各社筆記具メーカーも多用化傾向にあるが、金属製のレフィールに樹脂製のノック部材が上述のように嵌入連結されている場合、レフィール交換に際して、新たに用いる金属性レフィールの後端開口部に樹脂製ノック部材の嵌入部を無理やり嵌入すると、該嵌入部に著しい摩耗や折損等が生じ易いため、爾後のレフィール交換時に前記樹脂製ノック部材を適用できなくなるという課題があった。また、レフィールの後端開口部に対するノック部材の嵌入が緩み過ぎて抜けが生じた場合、その抜けを防止できないという課題があった。   In particular, as a refill applied to composite writing instruments, there has recently been a tendency to make the shaft cylinder thinner and slimmer, and as a result, various metal writing instrument manufacturers are also increasingly using a metal pipe. When the resin knock member is inserted and connected as described above, if the resin knock member insertion portion is forcibly inserted into the rear end opening of the newly used metallic refill when replacing the refill, Since wear, breakage, and the like are likely to occur, there is a problem that the resin knock member cannot be applied at the time of refilling after refilling. In addition, when the knock member is too loosely fitted into the rear end opening of the refill and a drop occurs, there is a problem that the drop cannot be prevented.

このように従来のノック式の複合筆記具では、レフィールの内径のバラツキやノック部材の嵌入部の摩耗等により、ノック部材が適度な柔軟性を具備(確保)しながらレフィールを保持できないため、ノック部材のスライドノック時にレフィールを軸筒の先端孔まで案内できず、該軸筒内でレフィールが停滞してしまうという課題があった。   In this way, in the conventional knock type composite writing instrument, the knock member cannot hold the refill while maintaining (ensuring) appropriate flexibility due to variations in the inner diameter of the refill or wear of the insertion portion of the knock member. When sliding knocking, there is a problem that the refill cannot be guided to the tip hole of the shaft tube, and the refill is stagnated in the shaft tube.

本発明は上記のような課題を解決するためになされたもので、レフィール交換時のスペアレフィールに内径のバラツキがあっても、該バラツキを吸収してレフィールと操作部材を確実に結合することができ、交換後のレフィールを軸筒の先端孔に向かってスムーズに案内させることができ、軸筒内でレフィールが停滞するようなことがない筆記具を提供することを目的とする。   The present invention has been made to solve the above-described problems. Even when the spare refill at the time of refill replacement has a variation in the inner diameter, the refill and the operation member can be reliably coupled by absorbing the variation. An object of the present invention is to provide a writing instrument that can smoothly guide the refill after replacement toward the tip hole of the shaft cylinder, and does not stagnate the refill in the shaft cylinder.

本発明に係る筆記具は、軸筒と、該軸筒内に前後進移動可能に挿入収納されて後退方向に付勢された少なくとも1本のレフィールと、該レフィールのそれぞれを後退付勢力に抗して個々に前進移動させる操作部材とを備え、前記操作部材には、前記レフィールの径方向に弾性変形可能なバネ継手が取付けられ、該バネ継手を介して前記操作部材が前記レフィールの後端側内部に嵌合された状態で前記バネ継手が前記レフィールの後部内面に径方向の弾発力で圧接係合しているものである。   The writing instrument according to the present invention has a shaft tube, at least one refill inserted and housed in the shaft tube so as to be movable forward and backward and urged in a backward direction, and each of the refills resists a backward biasing force. And an operating member that is individually moved forward, and a spring joint that is elastically deformable in a radial direction of the refill is attached to the operating member, and the operating member is connected to the rear end side of the refill via the spring joint. The spring joint is in pressure contact with the inner surface of the rear portion of the refill in a state of being fitted inside with a resilient force in the radial direction.

本発明に係る筆記具において、前記操作部材には、前記レフィールの後端側内部に挿脱可能に圧入される頭部を有する嵌入軸部が形成され、該嵌入軸部に沿った部位で前記バネ継手が前記レフィールの径方向に弾性変形可能に且つ着脱可能に保持されているものである。   In the writing instrument according to the present invention, the operating member is formed with an insertion shaft portion having a head that is removably inserted into the rear end side of the refill, and the spring is formed at a portion along the insertion shaft portion. The joint is held so as to be elastically deformable and detachable in the radial direction of the refill.

本発明に係る筆記具において、前記操作部材には、バネ継手を嵌め込む軸方向の溝部が対称位置に形成され、該溝部からの出没方向に前記バネ継手が弾性変形可能となるように該バネ継手が前記溝部に嵌め込まれているものである。   In the writing instrument according to the present invention, an axial groove into which the spring joint is fitted is formed at the symmetrical position on the operation member, and the spring joint is elastically deformable in the protruding and retracting direction from the groove. Is fitted in the groove.

本発明に係る筆記具の前記バネ継手は、線状のバネ部材を前部でレフィールの内径よりも大きな間隔幅に折曲して形成されているものである。   The spring joint of the writing instrument according to the present invention is formed by bending a linear spring member at the front part to an interval width larger than the inner diameter of the refill.

本発明に係る筆記具の前記バネ継手は、前記操作部材に形成された軸方向の溝部に前記脚片部が嵌め込まれると共に、バネ継手後部に折曲形成された係止片部が前記溝部の後端に設けられた係止孔に挿入係止されているものである。   In the spring joint of the writing instrument according to the present invention, the leg piece portion is fitted in the axial groove portion formed in the operation member, and the locking piece portion formed by bending at the rear portion of the spring joint has a rear portion of the groove portion. It is inserted and locked in a locking hole provided at the end.

本発明の筆記具によれば、操作部材に取付けられたバネ継手の取付部位をレフィールの後端側内部に圧入することにより、該レフィールの内面に前記バネ継手が弾発力で圧接係合するので、レフィール交換に際して、新たに用いるレフィールの内径にバラツキがあっても、そのバラツキを前記バネ継手で吸収することができ、これにより、レフィールと操作部材を十分な結合強度で確実に連結できるので、レフィール交換後に操作部材を操作することにより、レフィールを軸筒の先端孔に向かってスムーズに案内させることができ、軸筒内でレフィールが停滞するようなことがないという効果がある。   According to the writing instrument of the present invention, the spring joint is pressed and engaged with the inner surface of the refill by elastic force by press-fitting the attachment portion of the spring joint attached to the operation member into the rear end side inside the refill. When replacing the refill, even if there is a variation in the inner diameter of the newly used refill, the variation can be absorbed by the spring joint, so that the refill and the operation member can be reliably connected with sufficient coupling strength. By operating the operating member after the refill replacement, the refill can be smoothly guided toward the tip hole of the shaft tube, and there is an effect that the refill does not stagnate in the shaft tube.

本発明の筆記具によれば、操作部材に対してバネ継手が着脱可能となっているので、その操作部材を金属製のレフィールと樹脂製のレフィールの何れにも併用できるという効果がある。すわなち、金属製のレフィールの場合は上述のようにバネ継手が装着された操作部材を適用し、樹脂製のレフィールの場合は前記バネ継手を取り外した操作部材を適用するという具合にレフィール自体の寸法や材質を変えることなく該レフィールを使い分けることができるという効果がある。ここで、樹脂製のレフィールに適用すべく操作部材からバネ継手を取り外した場合でも、その操作部材の嵌入軸部にはレフィールの後端側内部に圧入される大きさの頭部が設けられており、該頭部が圧入によりレフィールの内面に圧接係合することによって、レフィールと操作部材の結合強度を十分に確保することができる。なお、前記バネ継手が装着されたままの操作部材を樹脂製のレフィールに適用することも可能である。   According to the writing instrument of the present invention, since the spring joint can be attached to and detached from the operation member, there is an effect that the operation member can be used in combination with either a metal refill or a resin refill. That is, in the case of a metal refill, the operation member with the spring joint attached is applied as described above, and in the case of a resin refill, the operation member with the spring joint removed is applied. There is an effect that the refill can be properly used without changing the size and material. Here, even when the spring joint is removed from the operation member to be applied to the resin refill, the insertion shaft portion of the operation member is provided with a head having a size to be press-fitted into the rear end side inside the refill. In addition, when the head is press-fitted to the inner surface of the refill by press-fitting, the coupling strength between the refill and the operation member can be sufficiently ensured. In addition, it is also possible to apply the operation member with the spring joint mounted thereon to a resin refill.

本発明の筆記具によれば、操作部材に形成された軸方向の溝部にバネ継手が嵌め込まれ、この状態で該バネ継手が前記溝部から出没するように保持されるので、レフィールの後端側内部に対する操作部材前部の嵌入時に該操作部材が弊害になるようなこともなくレフィールの後端側内部に操作部材を容易に嵌入できるという効果がある。   According to the writing instrument of the present invention, the spring joint is fitted in the axial groove formed in the operation member, and in this state, the spring joint is held so as to protrude from the groove. There is an effect that the operation member can be easily inserted into the rear end side of the refill without causing any adverse effect when the front portion of the operation member is inserted.

本発明の筆記具によれば、線状のバネ部材を前部でレフィールの内径よりも大きな間隔幅に折曲するだけで頗るコンパクトなバネ継手を容易に形成でき、操作部材における前記バネ継手の取付部位もシンプルにコンパクト化でき、そのバネ継手を操作部材に取付けても軸筒を大径化する必要がないという効果がある。   According to the writing instrument of the present invention, a compact spring joint can be easily formed by bending a linear spring member at a front portion with a gap width larger than the inner diameter of the refill, and the spring joint can be attached to the operation member. The part can also be simply made compact, and there is an effect that it is not necessary to increase the diameter of the shaft cylinder even if the spring joint is attached to the operation member.

本発明の筆記具によれば、操作部材に形成された軸方向の溝部にバネ継手の略並行な脚片部が嵌め込まれ、該脚片部の後端に形成されて相対方向に屈曲する係止片部が、前記操作部材の溝部後端に設けられた係止孔に挿入係止されているので、前記操作部材に取付けられたバネ継手が、レフィール内への圧入時に外れるようなこともなく、操作部材の所定位置にバネ継手を確実に保持して該バネ継手の機能を十分に発揮させることができるという効果がある。   According to the writing instrument of the present invention, the substantially parallel leg piece portion of the spring joint is fitted into the axial groove portion formed in the operation member, and the latch is formed at the rear end of the leg piece portion and bent in the relative direction. Since the one portion is inserted and locked in the locking hole provided at the rear end of the groove portion of the operation member, the spring joint attached to the operation member does not come off at the time of press-fitting into the refill. There is an effect that the spring joint can be securely held at a predetermined position of the operation member and the function of the spring joint can be fully exhibited.

実施の形態1.
図1はこの発明の実施の形態1による筆記具を示す断面図、図2は図1の筆記具の後端面図、図3は図1の筆記具の外観図、図4は図1の要部拡大断面図、図5(A)は図1および図4中の操作部材を示す平面図、図6(B)は図5(A)のA−A線に沿った断面図、図6(A)は図5(A)の側面図、図6(B)は図6(A)の左端面図、図6(C)は図6(A)の右端面図、図7は図6(A)の底面図、図8は図5(A)のB−Bに沿った断面図、図9(A)はバネ継手の平面図、図9(B)は図9(A)の右端面図、図10は図9(A)の側面図である。
Embodiment 1 FIG.
1 is a sectional view showing a writing instrument according to Embodiment 1 of the present invention, FIG. 2 is a rear end view of the writing instrument of FIG. 1, FIG. 3 is an external view of the writing instrument of FIG. 1, and FIG. 5A is a plan view showing the operation member in FIGS. 1 and 4, FIG. 6B is a cross-sectional view taken along the line AA in FIG. 5A, and FIG. 5 (A) is a side view, FIG. 6 (B) is a left end view of FIG. 6 (A), FIG. 6 (C) is a right end view of FIG. 6 (A), and FIG. FIG. 8 is a cross-sectional view taken along line BB in FIG. 5A, FIG. 9A is a plan view of the spring joint, FIG. 9B is a right end view of FIG. 10 is a side view of FIG.

図1に示す筆記具は、軸筒1と、該軸筒1内に前後進可能に挿入収納されて後退方向に付勢された複数本(図示例ではインク色が異なる3本)のボールペンのレフィール2および1本のシャープペンシルの芯パイプ3と、前記レフィール2のそれぞれを後退付勢力に抗して個々に前進移動させるノック部材(操作部材)4と、該ノック部材4の前部と前記レフィール2の後部との間に介在してそれらのノック部材4とレフィール2を結合するバネ継手5と、前記シャープペンシルの芯パイプ3を後退付勢力に抗して前進移動させるクリップユニット6とを備えた基本構造となっており、以下に詳細を説明する。   The writing instrument shown in FIG. 1 includes a shaft tube 1 and a refill of a plurality of ball pens (three inks having different ink colors in the illustrated example) inserted and housed in the shaft tube 1 so as to be able to move forward and backward and urged in the backward direction. 2 and one mechanical pencil core pipe 3, a knock member (operating member) 4 for individually moving the refill 2 against a reverse biasing force, a front portion of the knock member 4 and the refill 2 and a clip unit 6 for moving the mechanical pencil core pipe 3 forward against a reverse biasing force. The spring joint 5 is interposed between the rear part 2 and the knock member 4 and the refill 2. The basic structure will be described in detail below.

前記軸筒1内には内筒(中軸)7が嵌合され、該内筒7の先端部は前記軸筒1の前端から突出しており、その突出部位には筆記体繰出用の先端孔8aを有する先細円筒状の先具8が取付けられている。また、軸筒1内における内筒7の後部にはガイドストッパ10が配置されており、該ガイドストッパ10の中心部には緩衝部材11が設けられている。   An inner cylinder (medium shaft) 7 is fitted into the shaft cylinder 1, and a tip portion of the inner cylinder 7 protrudes from the front end of the shaft cylinder 1, and a tip hole 8 a for feeding the writing body is formed in the protruding portion. A tapered cylindrical tip 8 is attached. A guide stopper 10 is disposed at the rear of the inner cylinder 7 in the shaft cylinder 1, and a buffer member 11 is provided at the center of the guide stopper 10.

さらに、軸筒1の後部周壁には、前記各操作部材4を軸方向にガイドするノックガイド孔12と、前記クリップユニット6を同じく軸方向にガイドするノックガイド13が設けられている。   Furthermore, a knock guide hole 12 that guides each operation member 4 in the axial direction and a knock guide 13 that similarly guides the clip unit 6 in the axial direction are provided on the rear peripheral wall of the shaft tube 1.

軸筒1内に挿入収納されたレフィール2の後端にはバネ継手5を介してノック部材4が着脱可能に連結されており、その詳細な関連構造を以下に説明する。
まず、前記ノック部材4は、図4〜図6に示す形状に一体形成された樹脂製のレバー部材からなっており、該ノック部材4の前端には、レフィール2の後端側内部に挿脱可能に圧入するための頭部15を有する嵌入軸部14が設けられている。該嵌入軸部14の頭部15は、レフィール2の後端開口径と略同径の曲率半径の球面状に形成されている。
A knock member 4 is detachably connected to the rear end of the refill 2 inserted and accommodated in the shaft tube 1 via a spring joint 5, and the detailed related structure will be described below.
First, the knock member 4 is composed of a resin lever member integrally formed in the shape shown in FIGS. 4 to 6, and the front end of the knock member 4 is inserted into the rear end side of the refill 2. An insertion shaft portion 14 having a head 15 for press-fitting as possible is provided. The head portion 15 of the fitting shaft portion 14 is formed in a spherical shape having a radius of curvature substantially the same diameter as the rear end opening diameter of the refill 2.

このようなノック部材4の前部には、嵌入軸部14の頭部15から嵌入軸部14の両側壁面およびノック部材4の前部両側壁面に亘って軸方向に連続形成されたバネ継手嵌め込み用の溝部16が設けられている。また、前記溝部16の後端部には、該溝部16に連続してノック部材4の壁部を直角方向に貫通する係止孔17が設けられている。さらに、ノック部材4の前部には、両側外方に向かって突出するスプリング受け片18が一体形成されている。   In such a front portion of the knock member 4, a spring joint is continuously formed in the axial direction from the head portion 15 of the insertion shaft portion 14 to both side wall surfaces of the insertion shaft portion 14 and both front wall surfaces of the knock member 4. A groove 16 is provided. Further, a locking hole 17 is provided at the rear end of the groove 16 so as to pass through the wall of the knock member 4 in a direction perpendicular to the groove 16. Further, a spring receiving piece 18 protruding outward on both sides is integrally formed at the front portion of the knock member 4.

ノック部材4の後部側面には操作突部19が一体形成され、該操作突部19は、軸筒1のノックガイド孔12に内側から嵌め込まれて外方に突出し、該ノックガイド孔12に沿ってスライド自在となっている。また、ノック部材4における操作突部19の反対面には、1本のレフィール2を筆記位置でロックし、他のレフィール2のノック部材4で前記ロックを解除するための前部突出片20と後部突出片21が設けられている。   An operation protrusion 19 is integrally formed on the rear side surface of the knock member 4, and the operation protrusion 19 is fitted into the knock guide hole 12 of the shaft tube 1 from the inside and protrudes outward, along the knock guide hole 12. And is slidable. Further, on the opposite surface of the knocking member 4 to the operation protrusion 19, one refill 2 is locked at the writing position, and the front protruding piece 20 for releasing the lock by the knocking member 4 of the other refill 2 A rear protruding piece 21 is provided.

すなわち、1本のレフィール2が筆記位置までノックされると、該レフィール2の操作部材4における後部突出片21の後端が軸筒1内に退没している他のレフィール2の操作部材4における前部突出片20の前端に係止して筆記位置のレフィール2がロックされ、軸筒1内に退没している他のレフィール2のノック部材4を僅かにノックすると、該ノック部材4の前部突出片20の前端傾斜面で筆記位置のレフィール2のノック部材4における後部突出片21の後端が押されて前記ロックが解除されるように構成されている。   That is, when one refill 2 is knocked to the writing position, the operation member 4 of another refill 2 in which the rear end of the rear protruding piece 21 of the operation member 4 of the refill 2 is retracted into the shaft cylinder 1. When the refill 2 at the writing position is locked to the front end of the front projecting piece 20 at the front and the knock member 4 of the other refill 2 retracted in the shaft cylinder 1 is slightly knocked, the knock member 4 The rear projecting piece 21 of the knock member 4 of the refill 2 at the writing position is pushed on the inclined surface of the front projecting piece 20 to release the lock.

以上のように構成されたノック部材4の溝部16と係止孔17に亘ってバネ継手5が取り付けられている。このバネ継手5は、図7〜図9に示すように、線状のバネ部材をクリップ形状に折曲成形してなるもので、ノック部材4前端の頭部15の溝部16に嵌め込まれる先端湾曲部25と、この先端湾曲部25の両端に連続して平面「く」字状の対称形状に折曲形成された幅広折曲部26a,26bと、該幅広折曲部26a,26bの後端に連続して後方へ略並行に延びる脚片部27a,27bと、該脚片部27a,27bの後端に連続して相対方向へすれ違い状に延びるように折曲形成された係止片部28a,28bとからなっている。   The spring joint 5 is attached across the groove 16 and the locking hole 17 of the knock member 4 configured as described above. The spring joint 5 is formed by bending a linear spring member into a clip shape, as shown in FIGS. 7 to 9, and is curved at the tip end fitted into the groove 16 of the head portion 15 at the front end of the knock member 4. Portion 25, wide bent portions 26a and 26b formed in a symmetrical shape of a plane “<” shape continuously at both ends of the distal bent portion 25, and rear ends of the wide bent portions 26a and 26b Leg pieces 27a, 27b extending substantially in parallel to the rear, and locking pieces formed to bend so as to extend in a relative manner in a continuous manner to the rear ends of the leg pieces 27a, 27b. 28a and 28b.

なお、前記幅広折曲部26a,26は、レフィール2の後端側内部への圧入時に該レフィール2の内面に圧接させるため、該レフィール2の内径よりも大きな間隔幅の部位を有しているものである。   The wide bent portions 26a and 26 have a portion having a larger width than the inner diameter of the refill 2 in order to press-contact the inner surface of the refill 2 when being pressed into the rear end side inside the refill 2. Is.

このように形成されたバネ継手5の取付けに際しては、脚片部27a,27bの間隔幅を広げて先端湾曲部25をノック部材4先端の頭部15の溝部16に嵌め込み、かつ、脚片部27a,27bの後端の係止片部28a,28bを操作部材4における前記溝部16後端の係止孔17に嵌め込む。これにより、該係止孔17に前記係止片部28a,28bが弾性復元力で係止されると共に、前記脚片部27a,27bがノック部材4両側の軸方向の溝部16に収められると共に、バネ継手5の幅広折曲部26a,26bが前記溝部16の外方に膨出した状態に保持されている。   When attaching the spring joint 5 formed in this way, the space between the leg pieces 27a and 27b is widened so that the distal curved portion 25 is fitted into the groove 16 of the head 15 at the distal end of the knock member 4, and the leg piece The locking pieces 28 a and 28 b at the rear ends of 27 a and 27 b are fitted into the locking holes 17 at the rear end of the groove 16 in the operation member 4. As a result, the locking piece portions 28a and 28b are locked in the locking hole 17 by elastic restoring force, and the leg piece portions 27a and 27b are received in the axial groove portions 16 on both sides of the knock member 4. The wide bent portions 26 a and 26 b of the spring joint 5 are held in a state of bulging outward from the groove portion 16.

このようにしてバネ継手5が取付けられたノック部材4の前部をレフィール2の後端側内部に圧入すると、バネ継手5の幅広折曲部26a,26bが前記レフィール2の内面に摺接して相対方向に押し縮められることにより、圧入終端位置ではバネ継手5の弾発力により前記幅広折曲部26a,26bが前記レフィール2の内面に圧接係合した状態となってレフィール2と操作部材4が連結される。   When the front portion of the knock member 4 to which the spring joint 5 is attached is press-fitted into the rear end side inside the refill 2, the wide bent portions 26a and 26b of the spring joint 5 are brought into sliding contact with the inner surface of the refill 2. By being compressed in the relative direction, the wide bent portions 26a and 26b are brought into pressure contact with the inner surface of the refill 2 by the elastic force of the spring joint 5 at the press-fitting end position. Are concatenated.

このようにバネ継手5でノック部材4が連結されたレフィール2が軸筒1内に挿入収納され、そのレフィール2は、軸筒1内のスライドガイド10とノック部材4のスプリング受け片18との間に介在させたリターンスプリング23によって後退方向に付勢されている。   Thus, the refill 2 to which the knock member 4 is connected by the spring joint 5 is inserted and accommodated in the shaft tube 1, and the refill 2 is formed between the slide guide 10 in the shaft tube 1 and the spring receiving piece 18 of the knock member 4. It is urged in the backward direction by a return spring 23 interposed therebetween.

一方、前記シャープペンシルの芯パイプ3の前部には、クリップユニット6のスライドノックによる芯パイプ3の前進移動時に芯をチャッキングして筆記位置に繰り出す芯送出機構22が設けられている。前記クリップユニット6は、軸筒1内で芯パイプ3の後方に配置されたクリップベース30と、該クリップベース30の後部に形成され、ノックガイド孔13を介して外方に突出するクリップ取付部31と、該クリップ取付部31に継手33を介して揺動可能に支持されたクリップ32と、該クリップ32を前端側が軸筒1に当接する方向に付勢されたクリップスプリング34とを備え、クリップユニット6が後退方向にリターンスプリング24で付勢された構造となっている。   On the other hand, a lead feeding mechanism 22 for chucking the lead and feeding it to the writing position when the lead pipe 3 is moved forward by the slide knock of the clip unit 6 is provided at the front part of the lead pipe 3 of the mechanical pencil. The clip unit 6 includes a clip base 30 disposed behind the core pipe 3 in the shaft tube 1 and a clip mounting portion formed at the rear portion of the clip base 30 and protruding outward through the knock guide hole 13. 31, a clip 32 supported by the clip attachment portion 31 through a joint 33 so as to be swingable, and a clip spring 34 biased in a direction in which the front end side of the clip 32 abuts against the shaft tube 1. The clip unit 6 is urged by the return spring 24 in the backward direction.

なお、軸筒1の後端には消しゴム受け台35を介して消しゴム36が設けられると共に、消しゴム受け台35には消しゴム36を覆う着脱可能な消しゴムカバー37が取付けられている。   An eraser 36 is provided at the rear end of the shaft cylinder 1 via an eraser cradle 35, and a removable eraser cover 37 covering the eraser 36 is attached to the eraser cradle 35.

以上のように構成された複合筆記具によれば、ノック部材4の前部に取付けられたバネ継手5の取付部位をレフィール2の後端側内部に圧入すると、該レフィール2の内面に前記バネ継手5の幅広折曲部26a,26bが弾発力で圧接係合することにより、レフィール2の交換に際して、新たに用いるレフィールの内径にバラツキがあっても、そのバラツキを前記バネ継手5によって吸収することができ、これにより、新たなレフィール2とノック部材4を十分な結合強度で確実に連結できるという効果がある。   According to the composite writing instrument configured as described above, when the attachment portion of the spring joint 5 attached to the front portion of the knock member 4 is press-fitted into the rear end side inside the refill 2, the spring joint is inserted into the inner surface of the refill 2. 5, when the refill 2 is replaced, even if there is a variation in the inner diameter of the newly used refill, the variation is absorbed by the spring joint 5. Thus, there is an effect that the new refill 2 and the knock member 4 can be reliably connected with sufficient bonding strength.

また、レフィール2の交換後にノック部材4をスライドノック操作することにより、レフィール2を軸筒1の先端孔8aに向かってスムーズに案内することができ、軸筒1内でレフィール2が停滞するようなことがないという効果がある。さらには、上述のようなレフィール2の内径のバラツキにより該レフィール2とノック部材4との連結部に嵌合の緩みが生じる場合であっても、その緩みを前記バネ継手5で吸収・解消できることにより、同様の効果が得られる。   Further, by sliding and knocking the knock member 4 after the replacement of the refill 2, the refill 2 can be smoothly guided toward the tip hole 8 a of the shaft cylinder 1, so that the refill 2 stagnates in the shaft cylinder 1. There is an effect that there is nothing. Furthermore, even when looseness of fitting occurs in the connecting portion between the refill 2 and the knock member 4 due to the variation in the inner diameter of the refill 2 as described above, the looseness can be absorbed and eliminated by the spring joint 5. Thus, the same effect can be obtained.

ここで、樹脂製のレフィール2に適用すべくノック部材4からバネ継手5を取り外した場合でも、そのノック部材4の嵌入軸部14にはレフィール2の後端側内部に圧入される大きさの頭部15が設けられ、該頭部15がレフィール2の後端側内部に圧入されて該レフィール2の内面に圧接係合することにより、樹脂製レフィール2の弾性によって該レフィール2とノック部材4の結合強度を十分に確保することができるという効果がある。   Here, even when the spring joint 5 is removed from the knock member 4 so as to be applied to the resin-made refill 2, the insertion shaft portion 14 of the knock member 4 is sized to be press-fitted into the rear end side inside the refill 2. A head portion 15 is provided, and the head portion 15 is press-fitted into the rear end side inside the refill 2 and press-engaged with the inner surface of the refill 2, whereby the refill 2 and the knock member 4 are elastically elastic. There is an effect that a sufficient bonding strength can be secured.

また、本発明の複合筆記具によれば、ノック部材4の前部に形成された軸方向の溝部16にバネ継手5の脚片部27a,27bが嵌め込まれ、この状態で該バネ継手5の幅広折曲部26a,26bが前記溝部16から出没するように保持されるので、レフィール2の後端側内部に対するノック部材4前部の嵌入時に該ノック部材4が弊害になるようなこともなくレフィール2の後端側内部にノック部材4の前部を容易に嵌入できるという効果がある。   Further, according to the composite writing instrument of the present invention, the leg pieces 27a and 27b of the spring joint 5 are fitted into the axial groove 16 formed in the front portion of the knock member 4, and in this state, the wide width of the spring joint 5 is increased. Since the bent portions 26a and 26b are held so as to protrude from the groove portion 16, the knock member 4 does not become harmful when the front portion of the knock member 4 is fitted into the rear end side inside the refill 2. There is an effect that the front part of the knocking member 4 can be easily fitted into the rear end side of the 2.

さらに、本発明の複合筆記具によれば、線状のバネ部材を前部でレフィール2の内径よりも大きな間隔幅に折曲するだけで頗るコンパクトなバネ継手5を容易に形成でき、操作部材4における前記バネ継手5の取付部位をシンプルにコンパクト化でき、そのバネ継手5を操作部材4に取付けても軸筒1を大径化する必要がないという効果がある。   Furthermore, according to the composite writing instrument of the present invention, it is possible to easily form a compact spring joint 5 that can be easily bent by bending a linear spring member at a front portion so as to have a larger interval width than the inner diameter of the refill 2. The mounting part of the spring joint 5 can be simply made compact, and even if the spring joint 5 is attached to the operation member 4, there is an effect that it is not necessary to increase the diameter of the shaft cylinder 1.

さらには、本発明の複合筆記具によれば、ノック部材4に形成された軸方向の溝部16にバネ継手5の略並行な脚片部27a,27bが嵌め込まれ、該脚片部27a,27bの後端に形成されて相対方向に屈曲する係止片部28a,28bが、前記操作部材4の溝部16後端に設けられた係止孔17に挿入係止されているので、前記操作部材4の前部に取付けられたバネ継手5が、レフィール2内への圧入時に外れるようなこともなく、操作部材4の所定位置にバネ継手5を確実に保持して該バネ継手5の機能を十分に発揮させることができるという効果がある。   Furthermore, according to the composite writing instrument of the present invention, the leg piece portions 27a and 27b of the spring joint 5 that are substantially parallel to the axial groove portion 16 formed in the knock member 4 are fitted into the leg piece portions 27a and 27b. Since the locking pieces 28a and 28b formed at the rear end and bent in the relative direction are inserted and locked in the locking holes 17 provided at the rear end of the groove 16 of the operating member 4, the operating member 4 The spring joint 5 attached to the front portion of the operation member 4 is not disengaged at the time of press-fitting into the refill 2, and the spring joint 5 is securely held at a predetermined position of the operation member 4 to sufficiently function the spring joint 5. There is an effect that can be exhibited.

また、前記ノック部材4における溝部16の側壁には、係止片部28a,28bを容易に拡開させるための、なだらかな傾斜面16a(図5(B)参照)が形成されていることにより、その傾斜面16aを利用して脚片部27a,27bのそれぞれの後端で直角方向に屈曲する係止片部28a,28bを開拡させ、溝部16に侵入し易くすることにより、係止孔17に容易に挿入係止させることができるという効果がある。   Further, on the side wall of the groove portion 16 in the knock member 4, a gentle inclined surface 16a (see FIG. 5B) for easily expanding the locking piece portions 28a and 28b is formed. By using the inclined surface 16a, the locking pieces 28a and 28b that are bent in the right-angle direction at the rear ends of the leg pieces 27a and 27b are widened to easily enter the groove 16, thereby There is an effect that the hole 17 can be easily inserted and locked.

以上説明した実施の形態1では、レフィール2としてボールペンレフィールを示したが、本発明の特徴である操作部材4とレフィール2との結合手段に適用するレフィール2は、ボールペンレフィールに特定されるものではなく、その他の例えばシャープペンシルのレフィール(芯タンク)であってもよく、要するに、操作部材とレフィールを着脱可能に連結可能な構造の筆記具であれば、いかなる筆記具のレフィールであってもよい。   In the first embodiment described above, a ballpoint pen refill is shown as the refill 2. However, the refill 2 applied to the coupling means between the operation member 4 and the refill 2 which is a feature of the present invention is not limited to the ballpoint pen refill. Alternatively, other mechanical pencil refills (core tanks) may be used. In short, any writing instrument having a structure in which the operation member and the refill can be detachably connected may be used.

また、前述した実施の形態1では、スライド式複合筆記具について説明したが、本発明の筆記具は、前記スライド式複合筆記具のほかに単体筆記具や回転式筆記具のいずれであってもよく、本発明の特徴である操作部材4とレフィール2との結合手段を採用できる筆記具であれば、いかなる形態の筆記具であってもよく、いずれの場合も同様の効果を期待できる。   Moreover, in Embodiment 1 mentioned above, although the slide-type composite writing instrument was demonstrated, the writing instrument of this invention may be either a single-piece writing instrument or a rotary writing instrument other than the said slide-type composite writing instrument. Any writing instrument may be used as long as it is a writing instrument that can employ the coupling means between the operation member 4 and the refill 2, which is a feature, and the same effect can be expected in any case.

本発明の実施の形態1による筆記具を示す断面図である。It is sectional drawing which shows the writing instrument by Embodiment 1 of this invention. 図1の筆記具の後端面図である。FIG. 2 is a rear end view of the writing instrument in FIG. 1. 図1の筆記具の外観図である。It is an external view of the writing instrument of FIG. 図1の筆記具の後部を部分的に拡大した断面図である。It is sectional drawing which expanded the rear part of the writing instrument of FIG. 1 partially. 図5(A)は図1および図4中の操作部材を示す平面図、図5(B)は図5(A)のA−A線に沿った断面図である。5A is a plan view showing the operation member in FIGS. 1 and 4, and FIG. 5B is a cross-sectional view taken along the line AA in FIG. 5A. 図6(A)は図5(A)の側面図、図6(B)は図6(A)の左端面図、図6(C)は図6(A)の右端面図である。6A is a side view of FIG. 5A, FIG. 6B is a left end view of FIG. 6A, and FIG. 6C is a right end view of FIG. 6A. 図6(A)の底面図である。FIG. 7 is a bottom view of FIG. 図5(A)のB−Bに沿った断面図である。FIG. 6 is a cross-sectional view taken along the line BB in FIG. 図9(A)はバネ継手の平面図、図9(B)は図9(A)の右端面図である。9A is a plan view of the spring joint, and FIG. 9B is a right end view of FIG. 9A. 図9(A)の側面図である。FIG. 10 is a side view of FIG.

1 軸筒
2 レフィール
3 芯パイプ
4 ノック部材(操作部材)
5 バネ継手
6 クリップユニット
7 内筒
8 先具
8a 先端中心孔
10 ガイドストッパ
11 緩衝部材
12,13 ノックガイド孔
14 嵌入軸部
15 頭部
16 溝部
16a 傾斜面
17 係止孔
18 スプリング受け片
19 操作突部
20 前部突出片
21 後部突出片
22 芯送出機構
23,24 リターンスプリング
25 先端湾曲部
26a,26b 幅広折曲部
27a,27b 脚片部
28a,28b 係止片部
30 クリップベース
31 クリップ取付部
32 クリップ
33 継手
34 クリップスプリング
35 消しゴム受け台
36 消しゴム
37 消しゴムカバー
1 Shaft cylinder 2 Refill 3 Core pipe 4 Knock member (operation member)
5 Spring joint 6 Clip unit 7 Inner cylinder 8 Tip 8a Tip center hole 10 Guide stopper 11 Buffer member 12, 13 Knock guide hole 14 Insertion shaft part 15 Head 16 Groove part 16a Inclined surface 17 Locking hole 18 Spring receiving piece 19 Operation Projection 20 Front projecting piece 21 Rear projecting piece 22 Core feed mechanism 23, 24 Return spring 25 Tip curved part 26a, 26b Wide bent part 27a, 27b Leg piece part 28a, 28b Locking piece part 30 Clip base 31 Clip attachment Section 32 Clip 33 Joint 34 Clip spring 35 Eraser cradle 36 Eraser 37 Eraser cover

Claims (5)

軸筒と、該軸筒内に前後進移動可能に挿入収納されて後退方向に付勢された少なくとも1本のレフィールと、該レフィールを後退付勢力に抗して前進移動させる操作部材とを備えた筆記具において、
前記操作部材には、前記レフィールの径方向に弾性変形可能なバネ継手が取付けられ、該バネ継手を介して前記操作部材が前記レフィールの後端側内部に嵌合された状態で前記バネ継手が前記レフィールの後部内面に径方向の弾発力で圧接係合していることを特徴とする筆記具。
A shaft cylinder, at least one refill inserted and housed in the shaft cylinder so as to be movable back and forth and urged in a backward direction, and an operation member for moving the refeet forward against a backward urging force. In writing instruments,
A spring joint that is elastically deformable in the radial direction of the refill is attached to the operation member, and the spring joint is fitted in the rear end side inside the refill via the spring joint. A writing instrument, wherein the writing tool is press-fitted into the rear inner surface of the refill by a radial elastic force.
前記操作部材には、前記レフィールの後端側内部に挿脱可能に圧入される頭部を有する嵌入軸部が形成され、該嵌入軸部に沿った部位で前記バネ継手が前記レフィールの径方向に弾性変形可能に且つ着脱可能に保持されていることを特徴とする請求項1に記載の筆記具。   The operation member is formed with an insertion shaft portion having a head that is removably inserted into a rear end side of the refill, and the spring joint is disposed in a radial direction of the refill at a portion along the insertion shaft portion. The writing instrument according to claim 1, wherein the writing instrument is held in an elastically deformable and detachable manner. 前記操作部材には、バネ継手を嵌め込む軸方向の溝部が対称位置に形成され、該溝部からの出没方向に前記バネ継手が弾性変形可能となるように該バネ継手が前記溝部に嵌め込まれていることを特徴とする請求項1または請求項2に記載の筆記具。   The operation member has an axial groove portion into which the spring joint is fitted at a symmetrical position, and the spring joint is fitted into the groove portion so that the spring joint can be elastically deformed in the protruding and retracting direction from the groove portion. The writing instrument according to claim 1 or 2, wherein 前記バネ継手は、線状のバネ部材を前部でレフィールの内径よりも大きな間隔幅に折曲して形成されていることを特徴とする請求項1から請求項3のうちのいずれか1項に記載の筆記具。   4. The spring joint is formed by bending a linear spring member at a front portion so as to have an interval width larger than the inner diameter of the refill. 5. Writing instrument as described in. 前記バネ継手は、前記操作部材に形成された軸方向の溝部にバネ継手に形成された脚片部が嵌め込まれると共に、バネ継手後部に折曲形成された係止片部が前記溝部の後端に設けられた係止孔に挿入係止されていることを特徴とする請求項1から請求項4のうちのいずれか1項に記載の筆記具。   In the spring joint, a leg piece portion formed in the spring joint is fitted into an axial groove portion formed in the operation member, and a locking piece portion formed at the rear portion of the spring joint is a rear end of the groove portion. The writing instrument according to any one of claims 1 to 4, wherein the writing instrument is inserted and locked in a locking hole provided in the frame.
JP2009229283A 2009-10-01 2009-10-01 Writing instrument Active JP5367527B2 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000326688A (en) * 1999-05-18 2000-11-28 Gsp Kenkyusho:Kk Push-out type writing instrument
JP2007045032A (en) * 2005-08-11 2007-02-22 Pilot Ink Co Ltd Multiple lead writing utensil
JP2008221512A (en) * 2007-03-09 2008-09-25 Sun-Star Stationery Co Ltd Duplex writing utensil
JP2008254311A (en) * 2007-04-04 2008-10-23 Zebra Pen Corp Refill holder

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000326688A (en) * 1999-05-18 2000-11-28 Gsp Kenkyusho:Kk Push-out type writing instrument
JP2007045032A (en) * 2005-08-11 2007-02-22 Pilot Ink Co Ltd Multiple lead writing utensil
JP2008221512A (en) * 2007-03-09 2008-09-25 Sun-Star Stationery Co Ltd Duplex writing utensil
JP2008254311A (en) * 2007-04-04 2008-10-23 Zebra Pen Corp Refill holder

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