A utility knife adjuster structure

Abstract

The invention provides an adjuster structure for an art knife. The adjuster structure can improve the locating precision and sensitivity of an art knife adjuster and reduce the number of parts in the adjuster and is simple in structure. The adjuster structure comprises a knife handle, a blade, an upper adjusting block and a lower adjusting block. Groove teeth are distributed on one inner side of the knife handle. The adjuster structure is characterized in that the tail end of the blade is clamped at the front end of the lower adjusting block, and the blade is located in a blade rail cavity of the knife handle; the upper adjusting block is clamped on the rear portion of the lower adjusting block, and the upper adjusting block and the lower adjusting block can move relatively in the feeding direction of the blade; two locking sheets, namely the front locking sheet and the rear locking sheet, are arranged in the middle of the area, located on the upper adjusting block, of the lower adjusting block, a protruding block structure which laterally protrudes is arranged between the two locking sheets, each of the two sides of the protruding block structure is provided with a slope which expands towards the groove teeth from inside to outside, and the mounting parts of the two locking sheets are inserted into corresponding mounting grooves in the lower adjusting block.

Description

technical field [0001] The invention relates to the technical field of utility knife structures, in particular to a utility knife adjuster structure. Background technique [0002] The utility knife adjuster structure, which is more common in the market, includes an adjustment upper block, an adjustment lower block, and a locking block. A locking block spring is arranged between the locking block and the adjustment lower block, and a reset is arranged between the adjustment upper block and the adjustment lower block. A spring, the adjusting upper block and the adjusting lower block can move relatively along the feeding direction of the blade, and the locking block is clamped in the groove teeth on one side of the iron handle under the action of the locking block spring to achieve locking, When it is necessary to advance or retract the knife, press the upper adjustment block with your finger to advance (or retreat) the upper adjustment block. The adjustment upper block corresp...

AI Technical Summary

Problems solved by technology

[0002] The utility knife adjuster structure that is more common in the market includes an adjustable upper block, an adjustable lower block, and a locking block. A locking block spring is arranged between the locking block and the lower adjusting block, and a reset is set between the upper adjusting block and the lower adjusting block. The spring, the adjustable upper block and the lower adjustable block can move relatively along the feeding direction of the blade, and the locking block is clamped in the groove teeth on one side of the iron handle under the action of the locking block spring to achieve locking. When it is necessary to enter or withdraw the knife, press the upper adjustment block with your finger to make the upper adjustment block advance (or retreat). The spring force of the locking block spring breaks away from the iron handle, and then advances (or retreats), driving the adjustment block to move. When the adjustment is in place, the locking block enters the rest of the iron handle under the action of the reset spring force of the locking block. In the groove teeth, the adjustment upper block is also reset under the force of the return spring. It needs to have two spring structures. Each work requires two springs to work together. The internal structure is complicated, and the accuracy and sensitivity of the adjuster are poor. Using this The utility knife of the structure has a short service life, and thus cannot guarantee the overall quality of the utility knife

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