JP2009107135A5

JP2009107135A5 -

Info

Publication number: JP2009107135A5
Application number: JP2007278906A
Authority: JP
Filing date: 2007-10-26
Publication date: 2012-01-12
Anticipated expiration: 2027-10-26

Description

前記した課題を解決するためになされたこの発明にかかるシャープペンシルは、軸筒内に配設されたチャックの前後動により筆記芯の解除と把持を行うことで、前記筆記芯を前方に繰り出すことができるように構成されたシャープペンシルであって、前記チャックが前記筆記芯を把持した状態で軸芯を中心にして回転可能となるように前記軸筒内に保持されると共に、前記筆記芯が受ける筆記圧による後退動作および筆記圧の解除による前進動作により、往復方向に回転駆動を受ける往復回転部材と、前記往復回転部材の回転駆動力を受けて回転子を一方向に回転駆動させる回転駆動機構が具備され、前記回転子の回転運動を前記筆記芯に伝達するように構成した点に特徴を有する。 The mechanical pencil according to the present invention, which has been made to solve the above-described problems, extends the writing core forward by releasing and gripping the writing core by the back and forth movement of the chuck disposed in the shaft cylinder. A mechanical pencil configured so that the chuck is held in the barrel so that the chuck can rotate around the shaft core while holding the writing core, and the writing core is A reciprocating rotating member that receives rotational driving in the reciprocating direction by a retreating operation by the writing pressure received and a forward operation by releasing the writing pressure, and a rotational driving that rotates the rotor in one direction by receiving the rotational driving force of the reciprocating rotating member. mechanism is provided, characterized in that configured to transmit rotational motion of the rotor before Symbol writing lead.

Claims

A mechanical pencil configured so that the writing core can be fed forward by releasing and gripping the writing core by moving the chuck disposed in the shaft cylinder back and forth,
The chuck is held in the shaft cylinder so as to be rotatable around the shaft core in a state where the writing core is gripped, and the retraction operation by the writing pressure received by the writing core and the advancement by the release of the writing pressure are performed. the operation, the reciprocating rotary member for receiving a rotational drive in a reciprocating direction, the reciprocating rotary member rotating drive mechanism for the rotor receives a rotational driving force is rotationally driven in one direction is provided, before the rotational motion of the rotor A mechanical pencil that is configured to transmit to the writing core.