US 2024/0294030 A1Published application

Mechanical pencil

AssigneeWenzhou Jianxi Stationery Co., Ltd.

InventorYingying SONG

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Abstract

A mechanical pencil and an operating method therefor. A position-based relationship of a tool body is determined by means of the displacement of an adjustment part provided in a sleeve. The tool body has two position-based states, which are retracted and propelled states, and the adjustment part achieves relative stability at the two position-based states by means of a positioning part or a positioning slot in the sleeve, a resetting part, and a control part. The resetting part is driven by the tool body to provide a continuous force to the adjustment part, so that the state of a displacement part on the adjustment part is relatively stable at a retracted position. When the displacement part moves in the positioning slot to a propelled position, the displacement part is limited by the control part, so that the state at the propelled position is relatively stable.

Claims26

Dependent claims

A mechanical pencil, comprising a sleeve (1), an adjusting part (4), a tool body (5), a resetting part (3) and a control part (2);

wherein a displacement part (41) is provided on the adjusting part (4) and the displacement part (41) is movable in a positioning slot (71);
by displacing of the adjusting part (4) in the sleeve (1), a position-based state of the tool body (5) is selected between a lead driving state and a lead retraction state, and the adjusting part (4) is configured to maintain relative stability of the two position-based states by the positioning slot (71), the resetting part (3) and the control part (2);
the resetting part (3) keeps the lead retraction state of the displacement part (41) on the adjusting part (4) at a lead retracted position (A) relatively stable;
when the displacement part (41) moves in the positioning slot (71) to a lead driving position (B), the displacement part (41) is maintained at a lead driving state stably by the control part (2);
wherein the lead is retractable by at least influencing the movement of the control part (2) by applying an external force, causing the displacement part (41) be free from limitation of the control part (2), the displacement part (41) is thereby moveable under the action of the resetting part (3) to retract the lead.

2 more elements

Dependencies are inferred from the claim text.