CN2756464Y

CN2756464Y - Pencil sharpener

Info

Publication number: CN2756464Y
Application number: CN 200420003416
Authority: CN
Inventors: 周志毅
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-02-10
Filing date: 2004-02-10
Publication date: 2006-02-08
Anticipated expiration: 2014-02-10

Abstract

The utility model discloses a pencil sharpener which is used for sharpening pencils. An ordinary pencil sharpener and a pencil shell part is separated from a pencil core part in order to be made into two independent pencil sharpeners, a shell sharpening pencil sharpener and a core sharpening pencil sharpener. When a pencil is sharpened, an outer shell of the pencil is sharpened by the shell sharpening pencil sharpener firstly, the pencil core is exposed and then the pencil core is sharpened to be thin by the core sharpening pencil sharpener. In this way, the defect that the pencil core is easily broken off by a common pencil sharpener because of the different hardness of the pencil core and the pencil shell when the pencil is sharpened is overcome. The core sharpening pencil sharpener can also be matched with other pencil knives and can bring convenience on the pencil core sharpening aspect.

Description

Pencil sharpener

Technical field

The utility model relates to a kind of stationery of roll cutting pencil, especially relates to a kind of pencil sharpener.

Background technology

Pencil sharpener mainly contains two kinds in the market, and a kind of is common pencil sharpener, is made up of knife rest and blade, and a conical cavity is arranged on the knife rest, and a side of cavity has a microscler breach as the crumb mouth, and blade is installed in one side of crumb mouth.Because pencil is by shell (mainly being cork or coil paper) and the two-layer formation of pen core, the hardness and the toughness of shell and pen core are different, and pen core is hard and crisp, and shell is soft and tough, and both holding capacity are different, exert oneself to weigh slightly during volume, pen core is easily broken.Another kind is a hand drum cutter formula pencil sharpener, becomes an oblique angle to rotate with the hand traverse cylinder knife around the pencil that is fixed, and reaches and cuts a purpose, though it has overcome the fraud of easily broken core, volume inconvenience bigger than normal is carried, and price is more expensive.

The utility model content:

Task of the present utility model is that common pencil sharpener is improved, and overcomes its easily shortcoming of the disconnected pencil-lead of volume, provides the disconnected pencil-lead of a kind of difficult volume and the pencil sharpener of the pen core of being convenient to fine away.

The utility model be achieved in that a common pencil sharpener cut and housing parts with cut and pen core partly separates, make two independently pencil sharpeners.The one, volume shell pencil sharpener is called for short volume shell cutter.Its function is equivalent to the front portion of common pencil sharpener cuts and housing parts, is a truncated cone-shaped cavity on its knife rest, and the length of its blade is just in time cut and the pencil shell, does not cut and pen core, and pen core stretches out from cavity rear portion osculum.

The 2nd, volume core pencil sharpener is called for short volume core cutter.Its function is equivalent to common pencil sharpener rear portion cuts and the pen core part, is a conical cavity on its knife rest, and the size of this cavity and opening thereof is fit to the pencil pen core and enters, and can roll up therein and be whittled into taper shape, so pen core can be fined away.Because the opening of cavity is less, has stopped that the pencil shell enters, and does not cut shell so its blade is not rolled up, its function is to be exclusively used in the sharpening pen core.

During roll cutting pencil, earlier, expose pen core, with rolling up the core cutter pen core is fined away then with the prune shell of pencil of volume shell cutter.So just can come firmly effectively to prevent to resolve core according to the different hardness and the toughness of a shell and pen core.Comparing with common pencil sharpener only increases a spot of cost.Volume core cutter and the supporting use of volume shell cutter also are the pencil sharpeners of unique function simultaneously, no matter, just can fine away carefully with volume core cutter volume as long as pen core has been write blunt as being the pencil that other what pencil sharpener or penknife are cut, up to shell stop can not roll up again cut till.Volume core cutter can be used in combination with common pencil sharpener, hand drum cutter formula pencil sharpener and sharpener, can offer convenience aspect the sharpening pen core, and can reduce and cut a number of times.

Description of drawings

Fig. 1 is the front elevation of the utility model pencil sharpener;

Fig. 2 is the right side view of the utility model pencil sharpener;

Fig. 3 is the left side view of the utility model pencil sharpener;

Fig. 4 is the volume pen state figure of the utility model pencil sharpener;

Fig. 5 is the cutaway view of Fig. 4 along the I-I line;

Fig. 6 is the cutaway view of Fig. 4 along the II-II line.

The specific embodiment

Volume shell cutter can be made on one whole with volume core cutter, also can make two separate single-pieces.Be that example is illustrated the specific embodiment of the present utility model in conjunction with the accompanying drawings with one whole below:

There is a truncated cone-shaped cavity at volume shell cutter 2 positions of making knife rest 1, knife rest with plastics (or other suitable material), the open front of this truncated cone-shaped cavity is promptly gone into the size of pen mouth 3 should be able to put into pencil mutually with the pencil body thickness, the size that its rear portion osculum is a knockout mouth 4 should be able to make pen core stretch out with the pen core thickness mutually, its side towards the front has a microscler breach as crumb mouth 5, blade 6 is installed in one side of crumb mouth 5, the length of blade is only cut and a shell, do not cut and pen core, blade 6 is general fixing with screw 7.Pencil is inserted the truncated cone-shaped cavity rotate a shell of just pruning, expose pen core, as Fig. 4, shown in Figure 5 to insert orientation.

There is a conical cavity at volume core cutter 8 positions of knife rest 1, the opening of conical cavity is promptly gone into the size of core mouth 9 should be able to put into pen core mutually with the pen core thickness, this cavity has a microscler breach as crumb mouth 10 towards a side in front, blade 11 is installed in one side of crumb mouth 10, and blade 11 is general fixing with screw 12.The pen core that has exposed is inserted conical cavity rotate to insert orientation, it is thin just the pen core volume can be fined away, as Fig. 4, shown in Figure 6.

Claims

1, a kind of pencil sharpener that is used for roll cutting pencil is made up of blade and knife rest, it is characterized in that: its branch rolling shell cutter and volume core cutter two parts; This volume shell cutter has a truncated cone-shaped cavity, and a side of cavity has a microscler crumb mouth [5], and blade [6] is installed in one side of crumb mouth [5], and pen core stretches out from the osculum [4] of truncated cone-shaped cavity; This volume core cutter has a conical cavity, and a side of cavity has a microscler crumb mouth [10], and blade [11] is installed in one side of crumb mouth [10].