CN2066392U

CN2066392U - Reciprocating type planer tool for sharpening pencil

Info

Publication number: CN2066392U
Application number: CN 89218979
Authority: CN
Inventors: 付静敏
Original assignee: Individual
Current assignee: Individual
Priority date: 1989-11-08
Filing date: 1989-11-08
Publication date: 1990-11-28

Abstract

The utility model discloses an improved pencil cutting device, which mainly make the existing rotary cross cutting changed to be the way of reciprocally cutting pencils in the longitudinal direction, and a novel pencil knife which is used for cutting the pencils for primary and middle school students, engineers and technicians, etc is provided.

Description

Reciprocating type planer tool for sharpening pencil

The present invention is a kind of follow-on pencil topping machanism.Be suitable for the usefulness that middle and primary schools and engineers and technicians cut pencil.

The pencil sharpener of selling on the existing market all adopts Propelling pencil with sharpener in cap, makes its skin and lead for retractable pencil cut by sword.Meet the wooden quality of pencil when poor slightly, often cause the irregular damage of cutting; Pen core is frangibility also; Very undesirable.This device then changes this rotation cross cutting into round straight-cut.

Task of the present invention is finished with following method: its invention thinking is inspired by the principle of carpenter's (manual using) plane planing wood material; Promptly end face has the semicircle groove that diameter is a bit larger tham pencil diameter on the capsule of cavity; The non-flour milling of blade and the baseplane of groove are fixed in the box angularly; The high slightly bottom of trench of knife edge.When the people is adjacent to bottom of trench for making pencil, during along the groove motion, pencil will be cut by sword vertically in face of blade; Constantly back and forth movement reaches the cutting purpose.Broken the cutting that reams falls into the gap along blade and bottom of trench in the box temporaryly on an empty stomach, is movable arm-tie at the bottom of the box, pleases correct to outwell.This device is easy to use, can pencil be whittled into various taperings and shape according to own wish.Also can cut wooden skin and lead for retractable pencil separately.

Below with reference to accompanying drawing this device is further described:

Fig. 1 is the A face profile of concrete structure of the present invention.

Fig. 2 is the B face profile of concrete structure of the present invention.

Fig. 3 is the concrete size of the blade among Fig. 1, Fig. 2.

With reference to Fig. 1, Fig. 2, a plastics cuboid square box ［ 55 millimeters * 45 millimeters * 35 millimeters ］ (1), it is the semi-circular grooves (3) that two semi-circular grooves (2) of 9 millimeters and diameter are 12 millimeters that its end face has diameter, (2) use for the common pencil of cutting, (3) use for the cutting chinagraph pencil, blade of single face sharpening (5) and groove (2), (3) baseplane becomes 22 °, and blade exceeds 0.5 1 millimeters of trench bottom, when pencil is adjacent to the semi-circular grooves bottom land when blade moves, blade will carry out straight-cut to pencil skin and lead for retractable pencil, please correct and to enter in (1) empty stomach temporary along the gap of the knife edge and trench bottom (1.5 millimeters), drawing back movable floor (4) promptly outwells pleasing correct, Fig. 3 is the plane and the size of blade (5), (6) be two M3 bolts, four nuts (7) are moulded casting in (1) tiltedly in the chamber.Blade (5) can utilize these four nuts laterally to transpose, and each one of blade is all played a role.

Claims

1, a kind of pencil topping machanism, by injection molded, having the trip bolt of using for the body of the part of placing pencil and blade and fastening blade constitutes, it is characterized in that, for the part of placing pencil is that to be positioned at two diameters of body end face be 9 millimeters, diameter is 12 millimeters half a garden cylindricality groove (2,3), the plane of blade (5) becomes 22 degree angles with the tangent plane of half garden cylindricality trench bottom, the axis normal of the cutting edge of blade and half garden cylindricality groove, half garden shape channel bottom and the blade place of passing through mutually are hole, blade slightly exceeds the bottom of trench at this hole place, the screw of fastening blade (6) is meshed with body injection moulding all-in-one-piece nut (7), when pencil when half garden cylindricality groove vertically moves back and forth, blade just cuts it.

2, the described pencil topping machanism of claim 1 is characterized in that, the body of injection molded is a square box, in the cavity that can contain pen bits is arranged, the portable plate of bottom surface for extracting out.

3, claim 1 or 2 described pencil topping machanisms, it is characterized in that, blade (5) is 37 millimeters by length, wide is 30 millimeters, thickness is that 1 millimeter steel disc opening one side sharpening becomes, blade rear portion (promptly relative with a blade side) has two grooves for fastening and adjustment blade position usefulness, and blade is worn on a long limit of blade.

4, claim 1 or 2 or 3 pencil topping machanism is characterized in that the nut (7) that fastening blade is used has four.