CN2702868Y - Pencil sharpener - Google Patents
Pencil sharpener Download PDFInfo
- Publication number
- CN2702868Y CN2702868Y CN 200420062311 CN200420062311U CN2702868Y CN 2702868 Y CN2702868 Y CN 2702868Y CN 200420062311 CN200420062311 CN 200420062311 CN 200420062311 U CN200420062311 U CN 200420062311U CN 2702868 Y CN2702868 Y CN 2702868Y
- Authority
- CN
- China
- Prior art keywords
- cone
- guide groove
- pencil
- blade
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 abstract 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a pencil sharpener which can not break pencil lead when sharpening a pencil. The cutter comprises a shell, a blade, a guide groove and a blocking block fixedly arranged at the front end of the guide groove, namely the blocking block is formed at the vertex part of a cone which is similar to the cone formed by the guide groove, and the distance from the blocking block to the plane where the opening end of the guide groove is located is slightly smaller than the height of the right cone. Through the additional installation of this stopper for the guide slot has formed the round platform that a space is approximate to the right circular cone, and it has avoided the pencil lead front end of planing out to be too sharp-pointed because of being the cone and thereby the situation of easy rupture when leading to the use, simultaneously, also difficult rupture during the planing. The utility model discloses simple structure, convenient and practical.
Description
(1) technical field:
The utility model relates to a kind of stationery, particularly relates to a kind of pencil-knife.
(2) background technology:
Pencil-knife of the prior art (or claiming pencil sharpener) is one of stationery of using always, it is made up of housing, blade, guide groove etc., described housing is the rectangular box that blade is housed on the cover plate, described guide groove is positioned at housing and forms a cavity that is approximately the normal cone body, the openend of guide groove is positioned on the side of housing, the cutting edge of described blade is positioned at the bus inboard of this cone, and basic and this cone is tangent, and described guide groove front end is that the space at position, cone summit increases suddenly.The pencil that is column moves ahead and is cone by blade cut along the guide groove rotation, and lead for retractable pencil is a cone by blade cut also.The deficiencies in the prior art part is that the pencil-lead front end of planing out is too sharp-pointed, frangibility during use, simultaneously, also frangibility of pen core during planing.
(3) summary of the invention:
The pen core pencil-knife of frangibility not when the utility model aims to provide a kind of the planing.
Technical solution of the present utility model is as follows:
A kind of pencil-knife, comprise housing, blade, guide groove, described housing is the box body that blade is housed on the cover plate, described guide groove is positioned at housing and forms a cavity that is approximately the normal cone body, the openend of guide groove is that the bottom surface of cone is positioned on the side of housing, the cutting edge of described blade is positioned at the bus inboard of this cone, and it is basic and this cone is tangent, it is characterized in that: it also includes and is fixedly installed in the guide groove front end is the stopper that guide groove forms a position, cone summit that is approximately, and this stopper is slightly less than the height of cone to the distance on the plane, openend place of guide groove.
In the above-mentioned technical scheme, the existence of stopper makes guide groove form the round platform of the cone that a space is approximately, the situation of frangibility when thereby it has avoided the pencil-lead front end of planing out too sharply to cause using because of being cone, simultaneously, also frangibility not during planing.
Special needs to be pointed out is that at this stopper must be fixedly installed in the guide groove front end, its working face is certain to the distance on the plane, openend place of guide groove when promptly working, otherwise, still can fracture during planing.
The utility model is simple in structure, and is convenient and practical, and effect is obvious.
(4) description of drawings:
Accompanying drawing 1 is the schematic diagram of the utility model embodiment;
Each sequence number is respectively among the figure: 1, housing, 2, stopper, 3, cover plate, 4, blade, 5, installation nut, 6, cutting edge, 7, guide groove
(5) specific embodiment:
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail:
Referring to accompanying drawing, the utility model embodiment is by the uncovered rectangular box-like housing 1 that has the guide groove mouth on the side, by being installed, nut 5 is installed on blade 4 on the rectangular box inner cover plate 3, be positioned at housing 1 and be guide groove 7 compositions that are approximately the cavity of normal cone body, the openend of guide groove 7 is that the bottom surface of cone is positioned on the side of housing 1, the cutting edge 6 of described blade 4 is positioned at the bus inboard of this cone, and it is basic and this cone is tangent, the position, summit that guide groove 7 front ends promptly are approximately cone fixedly mounts a plastics stopper 2, and this stopper is slightly less than the height of cone to the distance on the plane, openend place of guide groove.Because the existence of this stopper 2, in fact guide groove is the round platform of the cone that is approximately, like this, thereby the pencil-lead front end of planing out with regard to not being cone frangibility during too sharp-pointed the use, simultaneously, also frangibility not during planing.
Claims (1)
1, a kind of pencil-knife, comprise housing, blade, guide groove, described housing is the box body that blade is housed on the cover plate, described guide groove is positioned at housing and forms a cavity that is approximately the normal cone body, the openend of guide groove is positioned on the side of housing, the cutting edge of described blade is positioned at the bus inboard of this cone, and it is basic and this cone is tangent, it is characterized in that: it also includes and is fixedly installed in the guide groove front end is the stopper that guide groove forms the position, summit of a cone that is approximately, and this stopper is slightly less than the height of cone to the distance on the plane, openend place of guide groove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420062311 CN2702868Y (en) | 2004-06-29 | 2004-06-29 | Pencil sharpener |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200420062311 CN2702868Y (en) | 2004-06-29 | 2004-06-29 | Pencil sharpener |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2702868Y true CN2702868Y (en) | 2005-06-01 |
Family
ID=34777473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200420062311 Expired - Fee Related CN2702868Y (en) | 2004-06-29 | 2004-06-29 | Pencil sharpener |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2702868Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106427328A (en) * | 2016-09-30 | 2017-02-22 | 李建民 | Two-way pencil sharpener and design method |
CN107499035A (en) * | 2017-09-22 | 2017-12-22 | 丁但凌 | A kind of lead for retractable pencil plane |
CN112406379A (en) * | 2020-12-23 | 2021-02-26 | 南京松之林笔业有限公司 | Electric pencil sharpener |
-
2004
- 2004-06-29 CN CN 200420062311 patent/CN2702868Y/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106427328A (en) * | 2016-09-30 | 2017-02-22 | 李建民 | Two-way pencil sharpener and design method |
CN107499035A (en) * | 2017-09-22 | 2017-12-22 | 丁但凌 | A kind of lead for retractable pencil plane |
CN112406379A (en) * | 2020-12-23 | 2021-02-26 | 南京松之林笔业有限公司 | Electric pencil sharpener |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |