JPH0525915Y2

JPH0525915Y2 -

Info

Publication number: JPH0525915Y2
Application number: JP1984192315U
Authority: JP
Priority date: 1984-12-20
Filing date: 1984-12-20
Publication date: 1993-06-30
Anticipated expiration: 1999-12-20
Also published as: KR860007638U; KR870001660Y1; JPS61107590U

Description

[Detailed explanation of the idea] [Industrial application field]

この考案はノツク式筆記具に係り、特に部品点数
を大幅に減少させたノツク部構造の改良に関す
る。 This invention relates to a knob-type writing instrument, and in particular to an improvement in the structure of the knob which greatly reduces the number of parts.

[Conventional technology]

最近、第１回目のノツクで、外筒内に収納され
ていた先具を突出させ、第２回目のノツクで芯送
りを行えるというノツク式のシヤープペンシル等
の筆記具が開発されているが、いずれも先具の突
出、退没を行わせる機構に多くの部品を必要と
し、しかもその構造も複雑であるという問題点が
あつた。 Recently, writing instruments such as sharp pencils have been developed that use a notch type, in which the tip stored in the outer barrel is protruded by the first notch, and the lead can be advanced by the second notch. However, there are problems in that the mechanism for protruding and retracting the tip requires many parts, and its structure is also complicated.

【Example】

以下、この考案の一実施例について、図面を参
照して説明する。第１図および第２図はこの考案をボールペンま
たはサインペンに適用した実施例を示し、外筒１
内に軸方向に摺動自在に配置され、弾性体２によ
り後方へ付勢されたレフイール３の後端には、ノ
ツク部４が配置されている。このノツク部４には、第１図乃至第６図示のよ
うに、クリツプ部５が一体成形されている。この
クリツプ部５は、外筒１の案内孔１ａに軸方向摺
動自在に案内係合していると共に、その先端部近
傍には、係止突起５ａが形成されている。この係
止突起５ａは、ノツク部４のノツク動作によるレ
フイール３の突出位置への移動に伴つて、外筒１
の係止孔１ｂに係止されるようになつている。ま
た、このクリツプ部５の付け根部５ｂは、第５図
のように、細くなつているので、先端の係止突起
５ａが付け根部５ｂを支点として揺動可能であ
り、係止孔１ｂに係脱可能となつている。従つ
て、クリツプ部５の先端部を矢印イ方向に引張力
を加えた場合や、後端部を矢印ロ方向に押圧した
場合には、係止突起５ａは係止孔１ｂとの係合が
解除される。ここで、クリツプ部５の付け根部５ｂを摺動自
在に挿入させる外筒１の案内孔１ａは、第６図
ａ，ｂに示すように、クリツプ部５を確実に摺動
可能に案内できれば、如何なる形状等であつても
よい。また、案内孔１ａの近傍には、第６図示の
ように、係止突起５ａを係止孔１ｂに係止案内す
るとともに、クリツプ部５の横ぶれを抑制する案
内溝（案内ガイド）６が外筒１の外周壁で案内孔
１ａと係止孔１ｂとの間に軸方向に沿つて形成さ
れている。次に、この考案の動作について説明する。第２図示のように、外筒１内に退没しているレフ
イール３に嵌合したノツク部４をノツクすると、
クリツプ部５先端の係止突起５ａは、外筒１の案
内溝６に案内されながら前方へ移動し、第１図に
示すように、外筒１の係止孔１ｂに係止され、筆
記可能状態になる。次に、筆記を終了したレフイール３を外筒１内
へ退没させるには、クリツプ部５の先端部を矢印
イ方向に引張つたり、またはクリツプ部５の後端
部を矢印ロ方向へ押圧すれば、クリツプ部５の付
け根部５ｂを支点として、係止突起５ａが上方へ
移動するので、係止孔１ｂとの係合が解除され
る。この解除によつて、ノツク部４はレフイール
３と共に弾性体２の付勢力によつて、付け根部５
ｂが案内孔１ａの後端壁に当接するまで、後方へ
移動し、元の退没状態へ戻ることとなる。このよ
うに動作して、係止突起５ａ案内溝６によつて軸
方向に沿つた摺動を与えられるので、係突起５ａ
が確実に係止部１ｂに係合案内されるとともに、
クリツプ部５が横ぶれを生ずることなく摺動案内
される。尚、ここで、筆記状態のままで、ポケツ
ト等にクリツプ部５をさした場合、ちようどクリ
ツプ部５の先端部をイ方向へ引張る形となるの
で、自動的に第２図示の収納状態になり一種の安
全装置として作用し、洋服を汚すことがない。また、筆記時に、外筒１から先具３ａが突出す
るストローク量L₁と、係止突起５ａ先端と係止
孔１ｂとの距離L₂と、案内孔１ａ後端壁とクリ
ツプ部５の付け根部５ｂとの距離L₃との間には、
L₁＝L₂＝L₃の関係が成立するように形成されて
いる。尚、第１図示のように案内孔１ａ前端壁と
クリツプ部付け根部５ｂとの隙間ａは、ガタ付を
防止するためにできるだけ存在しないように形成
されている。第７図および第８図は、この考案のシヤープペ
ンシルに適用した実施例を示す。この実施例は、外筒１内に軸方向に摺動自在に
配置され、かつ弾性体２により後方に付勢された
中軸７と、この中軸７の内部に軸方向に摺動自在
に収納され、先端に芯送出機構８を装着した芯パ
イプ（レフイール）３と、上記中軸７の後端に軸
方向移動可能に当接配置されたクリツプ部５とを
有する。上記芯送出機構８は、リードチヤツク９と、こ
のリードチヤツク９の先端に貫通されたチヤツク
締付管１０と、このチヤツク締付管１０の後退方
向の移動を規制し、かつそれ自体過大筆圧時にク
ツシヨンを行うクツシヨンスリーブ１１と、この
クツシヨンスリーブ１１と芯パイプ３との間に弾
着されたチヤツク締付用の弾性体１２とから成
る。また、筆記時に先具７ａが突出移動するストロ
ーク量L₁および上述と同様の距離L₂，L₃との間
にL₁＝L₂＝L₃の関係が成立する。さらに、第７
図の距離ａもできるだけ存在しないように形成さ
れている。以上の構成によれば、上述の実施例と同様に、
ノツク部４をノツクすることによつて、第７図示
のように、先具７ａが突出状態になる。さらに、
この状態で、ノツク部４をノツク動作することに
よつて、通常の芯送りが行われる。次に筆記が終了した場合には、クリツプ部５の
先端部を矢印イ方向に引張つたり、または、後端
部を矢印ロ方向に押圧すれば、係止突起５ａが係
止孔１ｂより外れて、第８図のように元の状態に
戻る。第９図および第１０図は、同様にこの考案をシ
ヤープペンシルに適用した実施例であるが、第７
図および第８図と異なる点は、中軸にクリツプ部
５を一体形成した点である。従つて、この実施例
も上述の実施例と同様に動作を行う。第１１図および第１２図も同様に、この考案を
シヤープペンシルに適用した実施例を示し、第７
図および第８図の実施例と異なる点は芯パイプ３
等の収納状態において芯を開放状態に保持してい
る点である。即ち、この実施例では、外筒の案内孔１ａの後
壁に当接部１ｃが形成されているので、第１２図
示のように、中軸７の外筒１の収納時には、クリ
ツプ部５の付け根部５ｂがこの当接部１ｃに当接
し、リードチヤツク１０は芯１３を開放状態に保
持している。従つて、この実施例もこの点を除い
て、上述の実施例と同様に動作を行う。第１３図乃至第１５図はこの考案をボールペン
に適用した実施例であるが（もちろんシヤープペ
ンシル等であつてもよい。）上述の実施例と異な
る点は、外筒１の案内孔１ａと係止孔１ｂとの間
に逃がし部１ｄを設けた点である。携帯時にクリ
ツプ部５の先端がちようど逃がし部１ｄに対向す
る位置になるので、携帯時にクリツプ部５の係止
突起５ａが外筒１の外周壁によつて持ち上げら
れ、いわゆるヘタリが起きることがない。 An embodiment of this invention will be described below with reference to the drawings. Figures 1 and 2 show an embodiment in which this invention is applied to a ballpoint pen or a felt-tip pen.
A notch portion 4 is disposed at the rear end of the refill 3, which is disposed slidably in the axial direction and biased rearward by the elastic body 2. As shown in FIGS. 1 to 6, a clip portion 5 is integrally molded into the notch portion 4. As shown in FIGS. The clip portion 5 is guided and engaged with the guide hole 1a of the outer cylinder 1 so as to be slidable in the axial direction, and a locking protrusion 5a is formed near the tip thereof. This locking protrusion 5a is attached to the outer cylinder 1 as the refill 3 moves to the protruding position due to the knocking operation of the notch part 4.
It is adapted to be locked in the locking hole 1b of. Further, since the base portion 5b of the clip portion 5 is tapered as shown in FIG. 5, the locking protrusion 5a at the tip can swing around the base portion 5b as a fulcrum, and is engaged with the locking hole 1b. It has become possible to escape. Therefore, when a tensile force is applied to the tip of the clip portion 5 in the direction of arrow A or when the rear end is pressed in the direction of arrow B, the locking protrusion 5a will not engage with the locking hole 1b. It will be canceled. Here, if the guide hole 1a of the outer cylinder 1 into which the base portion 5b of the clip portion 5 is slidably inserted is able to reliably guide the clip portion 5 in a slidable manner, as shown in FIGS. 6a and 6b, It may be of any shape. Further, in the vicinity of the guide hole 1a, as shown in FIG. It is formed along the axial direction on the outer peripheral wall of the outer cylinder 1 between the guide hole 1a and the locking hole 1b. Next, the operation of this invention will be explained. As shown in the second figure, when the notch part 4 fitted into the refill 3 retracted into the outer cylinder 1 is knocked,
The locking protrusion 5a at the tip of the clip portion 5 moves forward while being guided by the guide groove 6 of the outer cylinder 1, and is locked in the locking hole 1b of the outer cylinder 1 as shown in FIG. 1, allowing writing. become a state. Next, in order to retract the refill 3 after writing into the outer cylinder 1, the tip of the clip part 5 is pulled in the direction of arrow A, or the rear end of the clip part 5 is pushed in the direction of arrow B. Then, the locking protrusion 5a moves upward using the base portion 5b of the clip portion 5 as a fulcrum, so that the engagement with the locking hole 1b is released. By this release, the notch part 4 is moved together with the refill 3 by the urging force of the elastic body 2, and the base part 5 is
b moves rearward until it comes into contact with the rear end wall of the guide hole 1a, and returns to the original retracted state. By operating in this way, the locking protrusion 5a is given sliding motion along the axial direction by the guide groove 6, so that the locking protrusion 5a
is reliably engaged and guided by the locking portion 1b, and
The clip portion 5 is slidably guided without causing lateral wobbling. If the clip part 5 is inserted into a pocket or the like while it is still in the writing state, the tip of the clip part 5 will be pulled in the direction A, so it will automatically return to the storage state shown in the second figure. It acts as a kind of safety device and does not stain your clothes. In addition, when writing, the stroke amount L ₁ of the tip 3a protruding from the outer cylinder 1, the distance L ₂ between the tip of the locking protrusion 5a and the locking hole 1b, and the base of the rear end wall of the guide hole 1a and the clip part 5. Between the distance L ₃ and the part 5b,
It is formed so that the relationship L ₁ =L ₂ =L ₃ holds true. Incidentally, as shown in the first figure, the gap a between the front end wall of the guide hole 1a and the base portion 5b of the clip portion is formed to be as small as possible in order to prevent rattling. FIGS. 7 and 8 show an embodiment in which this invention is applied to a sharpening pencil. This embodiment includes a center shaft 7 which is disposed in an outer cylinder 1 so as to be slidable in the axial direction and biased rearward by an elastic body 2, and a center shaft 7 which is housed inside the center shaft 7 so as to be slidable in the axial direction. , a core pipe (refeal) 3 having a core delivery mechanism 8 attached to its tip, and a clip portion 5 disposed in contact with the rear end of the center shaft 7 so as to be movable in the axial direction. The lead feeding mechanism 8 regulates the backward movement of the lead chuck 9, the chuck tightening tube 10 passed through the tip of the lead chuck 9, and the backward movement of the chuck tightening tube 10. It consists of a cushion sleeve 11 that performs this, and an elastic body 12 for chuck tightening that is held between the cushion sleeve 11 and the core pipe 3. Moreover, the relationship L ₁ =L ₂ =L ₃ is established between the stroke amount L ₁ of the protruding movement of the tip 7a during writing and the distances L ₂ and L ₃ similar to those described above. Furthermore, the seventh
The distance a in the figure is also formed to be as small as possible. According to the above configuration, similar to the above embodiment,
By knocking the notch portion 4, the tip 7a is brought into a protruding state as shown in FIG. moreover,
In this state, normal core feeding is performed by knocking the knocking portion 4. Next, when writing is finished, the locking protrusion 5a is released from the locking hole 1b by pulling the tip of the clip portion 5 in the direction of arrow A or pressing the rear end in the direction of arrow B. Then, it returns to its original state as shown in FIG. 9 and 10 are examples in which this invention is similarly applied to a mechanical pencil;
The difference from this figure and FIG. 8 is that a clip portion 5 is integrally formed on the center shaft. Therefore, this embodiment also operates in the same manner as the above-described embodiment. 11 and 12 also show an example in which this invention is applied to a mechanical pencil, and
The difference from the embodiment shown in Figures and Figure 8 is that the core pipe 3
The point is that the core is held open in the stored state. That is, in this embodiment, since the abutment part 1c is formed on the rear wall of the guide hole 1a of the outer cylinder, when the outer cylinder 1 of the central shaft 7 is stored, the base of the clip part 5 is The portion 5b is in contact with the contact portion 1c, and the lead chuck 10 holds the core 13 in an open state. Therefore, this embodiment also operates in the same manner as the above-described embodiment except for this point. 13 to 15 show an embodiment in which this invention is applied to a ballpoint pen (of course, it may also be applied to a sharp pencil, etc.), but the difference from the above embodiment is that it is connected to the guide hole 1a of the outer cylinder 1. This is because a relief portion 1d is provided between the stop hole 1b and the stop hole 1b. Since the tip of the clip part 5 is in a position opposite to the relief part 1d when being carried, the locking protrusion 5a of the clip part 5 may be lifted by the outer circumferential wall of the outer cylinder 1, causing so-called sagging. do not have.

[Effect of the idea]

以上のように、この考案によれば、レフイール
の突出、退没の位置決めを外筒の係止孔に係止さ
れるクリツプ部の係止突起および案内孔内を摺動
して後端部に当接する付け根部によつて行うの
で、従来のように多数の部品を必要とせず、しか
も確実にレフイールの突出および退没が行えると
いう効果がある。また、クリツプ部の係止突起は付け根部を支点
として揺動可能に形成されているために筆記状態
のままでも、クリツプ部をポケツト等に差し込み
携帯すればクリツプ部が引張られ、レフイールが
自動的に収納状態となるので、洋服のポケツトを
汚したり、穴をあけたりすることなく、一種の汚
れ損傷防止の安全装置の機能を果たす効果があ
る。更に、係止突起を摺動案内する案内溝を外筒に
設けたので、ノツク時の指の接触などの原因でク
リツプ部が付け根部を支点として横ぶれするのを
抑制して、係止突起の軸方向の摺動を確実にし、
係止部への係止を容易にするという効果がある。また、クリツプ部は一体に成形されるので、そ
の段階でどうしても一部のものに、付け根部にお
いて多少軸方向からのずれを生ずる場合もある。
係止突起の案内溝を設けたことによつて、この軸
方向に対するずれを吸収することができるので、
不良品の数を減らすことができるという効果もあ
る。 As described above, according to this invention, the protruding and retracting positioning of the refil is carried out by sliding within the guide hole and the locking protrusion of the clip portion that is locked in the locking hole of the outer cylinder. Since this is done by the abutting base portions, there is no need for a large number of parts unlike in the prior art, and there is an advantage that the refil can be reliably projected and retracted. In addition, the locking protrusion on the clip is formed to be able to swing around the base, so even if you are still writing, if you insert the clip into your pocket or carry it around, the clip will be pulled and the refill will be automatically activated. Since the bag is stored in the storage state, it does not stain the pockets of clothes or puncture them, and functions as a kind of safety device to prevent stains and damage. Furthermore, a guide groove for slidingly guiding the locking protrusion is provided on the outer cylinder, which prevents the clip from wobbling about the base as a fulcrum due to factors such as contact with fingers when the locking protrusion is pressed. ensure axial sliding of
This has the effect of making it easier to lock onto the locking portion. Further, since the clip portion is integrally molded, some portions may inevitably be slightly displaced from the axial direction at the base portion.
By providing a guide groove for the locking protrusion, this deviation in the axial direction can be absorbed.
Another effect is that the number of defective products can be reduced.

[Brief explanation of drawings]

第１図はこの考案の一実施例の筆記可能状態の
縦断面図、第２図は同収納状態の縦断面図、第３
図はクリツプ部の平面図、第４図は同縦断面図、
第５図は第４図のＡ−Ａ線断面図、第６図は外筒
の後端部の平面図、第７図，第９図，第１１図お
よび第１３図は他の実施例の筆記可能状態の縦断
面図、第８図，第１０図および第１２図は同収納
状態の縦断面図、第１４図，第１５図は逃がし部
の平面図を示す。１……外筒、１ｂ……係止孔、２……弾性体、
３……レフイール、５……クリツプ部、５ａ……
係止突起、６……案内ガイド（案内溝）。 Fig. 1 is a longitudinal sectional view of one embodiment of this invention in a writable state, Fig. 2 is a longitudinal sectional view of the same in a stored state, and Fig. 3
The figure is a plan view of the clip part, Figure 4 is a longitudinal sectional view of the same,
5 is a sectional view taken along the line A-A in FIG. 4, FIG. 6 is a plan view of the rear end of the outer cylinder, and FIGS. 7, 9, 11, and 13 are views of other embodiments. FIGS. 8, 10, and 12 are longitudinal sectional views in the writable state, and FIGS. 14 and 15 are plan views of the release portion. 1... Outer cylinder, 1b... Locking hole, 2... Elastic body,
3... Refoil, 5... Clip section, 5a...
Locking protrusion, 6...Guide guide (guide groove).

Claims

[Scope of utility model registration request]

Refile 3 slidably arranged inside outer cylinder 1
and an elastic body 2 that urges this refil 3 backward.
is slidably guided and coupled to the guide hole 1a formed in the outer cylinder 1, and is formed to protrude outside the outer cylinder 1,
It is also provided with a clip portion 5 which is formed to be swingable about the root portion 5b as a fulcrum and has a locking protrusion 5a near the tip.
a locking portion 1b formed at a distance of a stroke amount of and locking the locking protrusion 5a so as to be able to hold the refil 3 in the locking and retracted position; It is formed between the guide hole 1a and the locking part 1b, engages the locking protrusion 5a, guides the locking protrusion 5a to the locking part 1b, and guides the locking protrusion 5a to the locking part 1b. A notch-type writing instrument characterized by being provided with a guide 6 for preventing sideways wobbling of the section.