Foldable knife structure
AssigneeKantas Products Co., Ltd.
InventorYang-Fu Cheng
Life of this patent
Estimating the term…
Abstract
The present invention relates to a foldable knife structure, which comprises a handle; a blade pivotably conjoined to a position adjacent to one end of the said handle; a set block adjacent to the pivotable conjoinment position of the blade and the said handle, with the said set block having a detent notch; a spring situated at the other end of the said handle, with the opposite extremity of the said spring extending to a position on the said set block. When the said blade is extended from (or folded into) the said handle, the said spring is against the circumferential edge of the said set block, causing the said set block to produce torsion that rotates the said blade out of (or into) a receiving slot of the said handle, causing the said blade to automatically bound out of (or fold into) the said receiving slot.
Claims9
A foldable knife structure comprised of:
- a handle, with the said handle having a receiving slot formed therein;
- a blade pivotably conjoined to a position adjacent to one end of the said handle such that the said blade is capable of being rotated around the position of pivotable conjoinment and folded into the said receiving slot or drawn out from the said receiving slot and extended outside the said handle;
- a set block situated at one side of the said blade adjacent to the pivotable conjoinment position of the said handle, with the said set block having a detent notch in the circumferential edge at the confluence of its maximum outer diameter and minimum outer diameter such that when the said blade is drawn out of and extended from the said receiving slot, the said detent notch faces the opposing end of the said receiving slot;
- a spring having one end inside the said receiving slot and situated near the other end of the said handle, with the opposite extremity of the said spring extending to a position on the said set block such that when the said blade is folded inside the said receiving slot, the opposite extremity of the said spring is against the maximum outer diameter, and the torsion produced causes the said set block to rotate the said blade towards the interior of the said receiving slot, and during the process of drawing the said blade out of the said receiving slot, the torsion produced causes the said set block to rotate the said blade towards the exterior of the said receiving slot and subjects the said blade to the functional force of the said spring such that it automatically bounds out of the said receiving slot.
Dependencies are inferred from the claim text.