CN2255371Y

CN2255371Y - Sharpener for propelling pencil with thick lead-core

Info

Publication number: CN2255371Y
Application number: CN 96216211
Authority: CN
Inventors: 黄继宗; 张亚京; 黄永强
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-06-23
Filing date: 1996-06-23
Publication date: 1997-06-04
Anticipated expiration: 2006-06-23

Abstract

The utility model provides a sharpener for propelling pencils with thick leads, which can be used for easily sharpening leads (3) of the propelling pencils with the thick leads. The utility model has the structural shape is that a bolt (6) and a nut (5) are used for fixing a grinding wheel (4) to a lead dust collecting barrel (7), an upper surface of the grinding wheel is provided with a fixing shaft (9) which is in clearance fit with a rotary cover (8), and the rotary cover and the collecting barrel form a lead dust collecting box. The rotary cover is provided with a pencil barrel (2) of a propelling pencil with a thick lead. A barrel bottom of the pencil barrel is provided with a small hole. A central line of the pencil barrel is coplane with a shaft line of the grinding wheel. The central line of the pencil barrel and a generatrix of the grinding wheel mutually form a definite angle.

Description

Thick propelling pencil sharpening device

The utility model is the invention about thick propelling pencil sharpening device.

Thick propelling pencil is compared with thin propelling pencil, and its obvious advantage is: lead for retractable pencil is stablized, lead for retractable pencil frangibility and applied widely not.Convenient inadequately when its weak point just is to use, need point lead for retractable pencil, thereby reduce its practical value.

In order to solve the problem that points of thick propelling pencil, so that give full play to its advantage, improve its practical value, at present, worked out several thick propelling pencil sharpeners.For example following patent and patent application: patent No. ZL94246662.4 and application number 93115887.7 and application number 90102343.4 or the like.These thick its structural shapes of propelling pencil sharpener all are that sharpened blade is fixed on the knife rest, and its sharpening mode or lead for retractable pencil are not then allow the knife rest serve as axle rotation with the lead for retractable pencil axis; Or knife rest is not then allow the lead for retractable pencil serve as the axle rotation with self axis.

The purpose of this utility model just provides a kind of thick propelling pencil sharpening device, it can be at an easy rate with the lead for retractable pencil sharpening of thick propelling pencil, and, can collect the lead dust that grinds, its structural shape is all different fully with sharpener with the sharpening mode.

The purpose of this utility model is achieved through the following technical measures: a kind of thick propelling pencil sharpening device, this sharpening device has an emery wheel (4), one end of emery wheel (4) has a lead dust collecting vessel (7), the other end of emery wheel (4) has a swivelling cover (8), the pen bucket (2) that one thick propelling pencil is arranged on the swivelling cover (8),, there is a duck eye at the bucket end of pen bucket, emery wheel (4) is fixed in the lead dust collecting vessel (7), swivelling cover (8) constitutes lead dust with lead dust collecting vessel (7) and collects box, the axis conllinear of the rotation centerline of swivelling cover (8) and emery wheel (4), the center line of pen bucket (2) is with the axis coplane of emery wheel (4) and be mutually certain angle, and the center line of pen bucket (2) and a bus of emery wheel (4) are crossing and be mutually certain angle.

Folded acute angle between the center line of the pen bucket (2) of this sharpening device and this bus of emery wheel (4) is between 4 °～20 °.

Advantage of the present utility model and effect are as follows:

1. be burr to lead for retractable pencil, rather than cutting, so lead for retractable pencil is not easy to fracture very much.

2. lead dust can directly be collected lead dust and collects in the box, and environment is not polluted.

3. plumbous its length of point that institute's burr is good and tapering are very easy to guarantee.

4. face shaping is unrestricted, can make the shape of liking.

5. rational in infrastructure, principle advanced person, part is easy to processing and manufacturing.

6. service life is very long.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is the profile according to the thick propelling pencil sharpening device that the utility model proposes, and Fig. 2 is the vertical view according to the thick propelling pencil sharpening device that the utility model proposes.

Describe structural shape and mode of operation in detail below in conjunction with Fig. 1 according to the thick propelling pencil sharpening device that the utility model proposes.A kind of thick propelling pencil sharpening device, its structural shape is: with bolt (6) and nut (5) emery wheel (4) is fixed in the lead dust collecting vessel (7), fixed axis (9) with the emery wheel coaxial line is arranged above the emery wheel, matched in clearance swivelling cover (8) on the fixed axis, the pen bucket (2) that one thick propelling pencil is arranged on the swivelling cover,, there is a duck eye at the bucket end of pen bucket, the axis conllinear of the rotation centerline of swivelling cover and emery wheel, swivelling cover and lead dust collecting vessel constitute lead dust and collect box, the center line of pen bucket and the axis coplane of emery wheel and be mutually certain angle, angle between the center line of pen bucket and the bus of emery wheel is preferably between 4 °～20 °, thereby guarantee the tapering of the plumbous point (3) that grinds, the thickness degree of pen bucket guarantees thick propelling pencil (1) plug freely, and, guarantee the sharpening position of lead for retractable pencil on emery wheel and the plumbous sharp length of grinding.Its mode of operation is: thick propelling pencil is inserted the pen bucket on earth, hold pencil, along clockwise or counter clockwise direction, with the emery wheel axis is the rotating shaft rotation, make the bus of emery wheel change the position constantly with the contact wire that is ground the sharp bus of lead, lead for retractable pencil is also just by sharpening little by little, and simultaneously, lead dust falls in the lead dust collecting vessel and directly collected.

Claims

1. thick propelling pencil sharpening device, this sharpening device has an emery wheel (4), one end of emery wheel (4) has a lead dust collecting vessel (7), the other end of emery wheel (4) has a swivelling cover (8), the pen bucket (2) that one thick propelling pencil is arranged on the swivelling cover (8),, there is a duck eye at the bucket end of pen bucket, it is characterized in that: emery wheel (4) is fixed in the lead dust collecting vessel (7), swivelling cover (8) constitutes lead with lead dust collecting vessel (7) and comes youngster to collect box, the axis conllinear of the rotation centerline of swivelling cover (8) and emery wheel (4), the center line of pen bucket (2) is with the axis coplane of emery wheel (4) and be mutually certain angle, and the center line of pen bucket (2) and a bus of emery wheel (4) are crossing and be mutually certain angle.

2. sharpening device according to claim 1 is characterized in that: the folded acute angle between the center line of pen bucket (2) and this bus of emery wheel (4) is between 4 °～20 °.