JPH084315Y2 - mechanical pencil - Google Patents

mechanical pencil

Info

Publication number
JPH084315Y2
JPH084315Y2 JP12461789U JP12461789U JPH084315Y2 JP H084315 Y2 JPH084315 Y2 JP H084315Y2 JP 12461789 U JP12461789 U JP 12461789U JP 12461789 U JP12461789 U JP 12461789U JP H084315 Y2 JPH084315 Y2 JP H084315Y2
Authority
JP
Japan
Prior art keywords
rear end
chuck
lead core
knock
adjusting screw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP12461789U
Other languages
Japanese (ja)
Other versions
JPH0364784U (en
Inventor
涼治 松丸
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tombow Pencil Co Ltd
Original Assignee
Tombow Pencil Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tombow Pencil Co Ltd filed Critical Tombow Pencil Co Ltd
Priority to JP12461789U priority Critical patent/JPH084315Y2/en
Publication of JPH0364784U publication Critical patent/JPH0364784U/ja
Application granted granted Critical
Publication of JPH084315Y2 publication Critical patent/JPH084315Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)

Description

【考案の詳細な説明】 (産業上の利用分野) この考案は、シャープペンシルの鉛芯を保持する構造
の改良に関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to improvement of a structure for holding a lead core of a mechanical pencil.

(従来の技術) 従来、ノック式シャープペンシルにおいて、内筒体内
に収納する鉛芯は、鉛芯を収納する内筒体の先端に外周
にリングを嵌着するチャックを、上記内筒体後部のノッ
ク体のノックによりスプリングに抗して前方に押出し、
チャックの外周に配置するリングの移動によってチャッ
クの緊締を解除すると共に鉛芯を先端より突出させ、更
にはスプリングの復元力によりチャック先端をリングに
より緊締して、鉛芯を突出した状態として保持固定し、
筆記状態におくものである。
(Prior Art) Conventionally, in a knock-type mechanical pencil, a lead core to be housed in the inner cylinder body has a chuck for fitting a ring on the outer periphery to the tip of the inner cylinder body to house the lead core. The knock of the knock body pushes forward against the spring,
The tightening of the chuck is released by moving the ring arranged on the outer circumference of the chuck, the lead core is projected from the tip, and the chuck tip is tightened by the ring by the restoring force of the spring, and the lead core is held and fixed. Then
It is for writing.

(考案が解決しようとする課題) しかしながら、上記従来のものにおいて、内筒体後端
のノックに応じて、内筒体内より鉛芯を突出、保持固定
する場合、鉛芯に対するチャックへの緊締は、リングと
チャックによって行われるものであるが、チャックに対
するリングの固持力は、外筒内の移動駒と内筒段部間に
挿嵌されるスプリングの弾性力によって常に一定とな
り、筆圧の著しく高い使用者による使用あるいは鉛芯の
硬度によっては、チャックにより保持固定されている鉛
芯を没入させようとする力が、その鉛芯を保持固定する
チャックの把持力よりも優ってしまうことになり、筆記
中に鉛芯が徐々にチャックより内筒体内に没入する結
果、筆記することが困難になるおそれがある。
(Problems to be solved by the invention) However, in the above-mentioned conventional one, when the lead core is projected from the inner cylinder body and held and fixed in accordance with the knock at the rear end of the inner cylinder body, tightening to the chuck with respect to the lead core is not performed. , The ring is held by the chuck, and the holding force of the ring against the chuck is always constant due to the elastic force of the spring inserted between the moving piece in the outer cylinder and the stepped portion of the inner cylinder. Depending on the high usage of the user or the hardness of the lead core, the force to immerse the lead core held and fixed by the chuck may be greater than the gripping force of the chuck that holds and fixes the lead core. As a result of the lead core gradually immersing into the inner cylinder from the chuck during writing, writing may become difficult.

そこで、この考案は上記従来のものの持つ欠点を改善
するものであり、筆圧の高さによって起こる鉛芯のチャ
ック内への没入を防止し、鉛芯を最後まで確実に使い切
ることができるようにするものである。
Therefore, this invention is to improve the drawbacks of the above-mentioned conventional ones, and prevent the lead core from immersing in the chuck due to the high writing pressure, so that the lead core can be used up to the end surely. To do.

(課題を解決するための手段) そのために、外筒体の後端に螺合する調整ネジの先端
の係止片を、外筒体内の移動駒に回転自在に係合すると
ともにこの移動駒は、内筒体先端の鉛芯チャックの締リ
ング後端が当接する中間金具の後端面に対向し、この移
動駒の後端と内筒体の後端部に嵌合する内筒体のノック
部の前方に形成する内筒体前方段部との間にスプリング
を挿嵌して、その全長を、調整ネジの回動によって変化
できるようにするものである。
(Means for Solving the Problem) Therefore, the locking piece at the tip of the adjusting screw screwed to the rear end of the outer tubular body is rotatably engaged with the moving piece in the outer tubular body, and the moving piece is , The rear end surface of the intermediate metal fitting, which the rear end of the lead ring chuck's tightening ring at the front end of the inner tubular body abuts, faces the rear end of this moving piece and the rear end of the inner tubular body. A spring is fitted between the front step portion of the inner cylindrical body formed at the front side and the entire length thereof can be changed by the rotation of the adjusting screw.

(作用) 上記構成を具えるので、調整ネジを回動させることに
よって上方(図面右方)に引き出すと、上記調整ネジの
先端が固定される移動駒は、調整ネジの上方への引き出
しに伴う回動によって上方に移動することとなり、その
ために、移動駒の後端とノック部との間に挟持されるコ
イルスプリングが圧縮され、チャックの緊締力を強め鉛
芯を確保することができ、逆に調整ネジを逆方向に回動
させると、移動駒が前進することによってスプリングの
圧縮力が弱められ、チャックの緊締力も弱められる。
(Operation) With the above configuration, when the adjusting screw is rotated to pull it upward (to the right in the drawing), the moving piece to which the tip of the adjusting screw is fixed is accompanied by the upward movement of the adjusting screw. Since the coil spring is moved upward due to the rotation, the coil spring sandwiched between the rear end of the moving piece and the knock portion is compressed, the tightening force of the chuck can be strengthened, and the lead core can be secured. When the adjusting screw is rotated in the opposite direction, the moving piece moves forward to weaken the compression force of the spring and also the tightening force of the chuck.

(実施例) この考案を図に示す実施例により更に説明する。
(1)はこの考案の実施例であるシャープペンシルであ
り、このシャープペンシル(1)は、調整ネジ(9)が
螺合する外筒体(2)と鉛芯(5)を収納する内筒体
(4)よりなり、この内筒体(4)内に収納される鉛芯
(5)を内筒体(4)後端部に嵌合するノック部(6)
のノック力を使用者の好みに応じて変化させ、チャック
の緊締力を調整するノック調整機構からなるものであ
る。
(Example) This invention is further explained by the example shown in the figures.
(1) is a mechanical pencil which is an embodiment of the present invention. This mechanical pencil (1) is an inner cylinder for accommodating an outer cylinder (2) with which an adjusting screw (9) is screwed and a lead core (5). A knock part (6) which is made of a body (4) and fits a lead core (5) housed in the inner cylinder body (4) to a rear end portion of the inner cylinder body (4).
It comprises a knock adjusting mechanism for adjusting the tightening force of the chuck by changing the knocking force of the chuck according to the preference of the user.

このノック調整機構は、外筒体(2)の後端内周に設
けるネジ部(3)に螺合する調整ネジ(9)、この調整
ネジ(9)の先端の係止片(10)と係合する移動駒(1
3)と、ノック部(6)の前方段部(8)との間にスプ
リング(11)を挿嵌すると共に、上記移動駒(13)の前
端には中間金具(12)を設け、内筒体(4)のチャック
(7)に嵌着する締リング(15)を当接してなるもので
ある。
The knock adjusting mechanism includes an adjusting screw (9) that is screwed into a screw portion (3) provided on the inner periphery of the rear end of the outer tubular body (2), a locking piece (10) at the tip of the adjusting screw (9). Moving piece (1
A spring (11) is inserted between the front step (8) of the knock part (6) and 3), and an intermediate metal fitting (12) is provided at the front end of the moving piece (13). It is formed by abutting a tightening ring (15) fitted on the chuck (7) of the body (4).

この考案が以上の構成を具えるので、使用者がノック
部(6)に対する鉛芯(5)突出に必要なノック力を大
きくしようとする時には、調整ネジ(9)を左方向に回
動させることで、調整ネジ(9)を上方に引き出すこと
で、上記調整ネジ(9)の先端の係止片(10)を回転自
在に係合する移動駒(13)が、調整ネジ(9)の上方へ
の引き出しに従い、上方に移動することとなり、そのた
め移動駒(13)の後端に接合するスプリング座金(14)
とノック部(6)の前方段部(8)との間に挿嵌される
スプリング(11)が圧縮されるので、ノック部(6)に
対する荷重は大きくなると共に、上記移動駒(13)の移
動に伴い、鉛芯(5)を保持しているチャック(7)が
後退し、締リング(15)の緊締力が強くなるのである。
Since the present invention has the above-mentioned structure, when the user tries to increase the knocking force required for projecting the lead core (5) with respect to the knocking portion (6), the adjusting screw (9) is rotated leftward. By pulling the adjusting screw (9) upward, the moving piece (13) that rotatably engages the locking piece (10) at the tip of the adjusting screw (9) is The spring washer (14) is connected to the rear end of the moving piece (13) as it moves upward as it is pulled out upward.
Since the spring (11) inserted between the front step portion (8) of the knock portion (6) and the knock portion (6) is compressed, the load on the knock portion (6) is increased and the moving piece (13) is moved. With the movement, the chuck (7) holding the lead core (5) retracts, and the tightening force of the tightening ring (15) increases.

一方、逆に調整ネジを逆方向に回動させると、移動駒
(13)が下方(図面左方)に前進することによってスプ
リング(11)が伸長するので、スプリング(11)自体の
有する弾発力が低減し、ノック部(6)への荷重を低減
することができる。
On the other hand, when the adjusting screw is turned in the opposite direction, the moving piece (13) advances downward (to the left in the drawing) to extend the spring (11), so that the spring (11) itself has a resilient force. The force is reduced, and the load on the knock portion (6) can be reduced.

(考案の効果) 以上のとおり、調整ネジによってスプリングの弾発力
を加減することによって、使用者の筆圧或は鉛芯の硬度
に応じて、鉛芯のチャック内方への没入を防止したり、
ノック部への荷重を低減することができる優れた効果を
有するものである。
(Effect of the device) As described above, by adjusting the elastic force of the spring with the adjusting screw, it is possible to prevent the lead core from immersing inside the chuck depending on the user's writing pressure or the hardness of the lead core. Or
It has an excellent effect that the load on the knock part can be reduced.

【図面の簡単な説明】[Brief description of drawings]

第1図は全体の正面図、第2図はその拡大断面図であ
る。 1……シャープペンシル、2……外筒体、3……ネジ
部、4……内筒体、5……鉛芯、6……ノック部、7…
…チャック、8……内筒体前方段部、9……調整ネジ、
10……係止片、11……スプリング、12……中間金具、13
……移動駒、14……スプリング座金、15……締リング
FIG. 1 is an overall front view, and FIG. 2 is an enlarged sectional view thereof. 1 ... Mechanical pencil, 2 ... Outer cylinder, 3 ... Screw, 4 ... Inner cylinder, 5 ... Lead core, 6 ... Knock, 7 ...
… Chuck, 8 …… Inner cylinder front step, 9 …… Adjustment screw,
10 …… Locking piece, 11 …… Spring, 12 …… Intermediate metal fitting, 13
...... Movement piece, 14 ...... Spring washer, 15 ...... Tightening ring

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】外筒体の後端に螺合する調整ネジの先端の
係止片を、外筒体内の移動駒に回転自在に係合するとと
もに、この移動駒は、内筒体先端の鉛芯チャックの締リ
ング後端が当接する中間金具の後端面に対向し、この移
動駒の後端と内筒体の後端部に嵌合するノック部の前方
に形成する内筒体前方段部との間にスプリングを挿嵌し
てなるシャープペンシル。
1. An engaging piece at the tip of an adjusting screw screwed to the rear end of the outer cylinder is rotatably engaged with a moving piece in the outer cylinder, and the moving piece is provided at the tip of the inner cylinder. The inner tubular body front step portion that is formed in front of the knock portion that is fitted to the rear end of the movable piece and the rear end portion of the inner tubular body, which faces the rear end surface of the intermediate metal fitting with which the rear end of the lead ring chucking ring abuts A mechanical pencil with a spring inserted between and.
JP12461789U 1989-10-26 1989-10-26 mechanical pencil Expired - Lifetime JPH084315Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12461789U JPH084315Y2 (en) 1989-10-26 1989-10-26 mechanical pencil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12461789U JPH084315Y2 (en) 1989-10-26 1989-10-26 mechanical pencil

Publications (2)

Publication Number Publication Date
JPH0364784U JPH0364784U (en) 1991-06-24
JPH084315Y2 true JPH084315Y2 (en) 1996-02-07

Family

ID=31672526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12461789U Expired - Lifetime JPH084315Y2 (en) 1989-10-26 1989-10-26 mechanical pencil

Country Status (1)

Country Link
JP (1) JPH084315Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100116693A1 (en) * 2006-12-07 2010-05-13 Hession Christopher J Package with multi-sleeve structure

Also Published As

Publication number Publication date
JPH0364784U (en) 1991-06-24

Similar Documents

Publication Publication Date Title
US4218153A (en) Mechanical pencil
JPH084315Y2 (en) mechanical pencil
JPH0346943Y2 (en)
JP2578084Y2 (en) mechanical pencil
JPH0333508Y2 (en)
JP3877629B2 (en) Improved knock-type mechanical pencil
EP0754127A1 (en) Writing instrument
JP2561059Y2 (en) Tactile stick-out mechanical pencil
JPS593913Y2 (en) Shape pencil
CN212046573U (en) Chalk sleeve with laser pen
JP2604592Y2 (en) Mechanical pencil base
JPH077198Y2 (en) Mechanical pencil with variable centering mechanism
JPS6227429Y2 (en)
JP2573054Y2 (en) Tactile stick-out mechanical pencil
JPH0530945Y2 (en)
JPH0621748Y2 (en) Notch type sharp pencil
JPS5913101Y2 (en) Double-knot extrusion writing instrument
JP3333040B2 (en) Tactile stick-out mechanical pencil
JPS599917Y2 (en) writing implements
JPS5842152Y2 (en) writing implements
JPS5835512Y2 (en) Shape pencil
JPS623258Y2 (en)
JPH0529914Y2 (en)
JPS597112Y2 (en) sheep pencil
JP2561060Y2 (en) Tactile stick-out mechanical pencil