CN2290487Y - Pencil sharpening tool - Google Patents
Pencil sharpening tool Download PDFInfo
- Publication number
- CN2290487Y CN2290487Y CN 97205400 CN97205400U CN2290487Y CN 2290487 Y CN2290487 Y CN 2290487Y CN 97205400 CN97205400 CN 97205400 CN 97205400 U CN97205400 U CN 97205400U CN 2290487 Y CN2290487 Y CN 2290487Y
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- CN
- China
- Prior art keywords
- shell
- apical tooth
- pencil
- knife
- groove
- 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
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Abstract
The utility model discloses a pencil sharpening tool, comprising an outer shell, an inner conical top provided with an opening sharpening groove, a sharpener and an automatically rotary pushing mechanism. One section of the outer shell forms a tube shape, and the other section is an opening groove which is provided with an oblique guide rail; a guide rail is arranged inside the tube-shaped part; the inner conical top is arranged inside the opening groove of the outer shell, the handle of the sharpener is arranged on the opening groove by the guide rail, and the automatically rotary pushing mechanism is composed of an apical tooth ring, a rotary tooth ring and a helical compression spring which are in turn arranged on the tube-shaped part of the outer shell; apical teeth are arranged behind the apical tooth ring, and an annular elastic claw is arranged inside the rotary tooth ring; the outside of the rotary tooth ring is provided with saw-shaped teeth which can mesh with the apical teeth. The utility model has simple structure and better quality of sharpened pencils.
Description
The utility model belongs to the cutter that sharpens a pencil.
Existing lead pencil knife has the jack knife that sharpens a pencil, sharpens a pencil and revolve the pencil-sharpening device of cutter, hand rolling cutting, and the jack knife that sharpens a pencil sharpens a pencil conveniently, and the difficult quality guarantee of cutting is cut disconnected pencil-lead easily; Sharpen a pencil and revolve cutter and sharpen a pencil conveniently, the taper seat of cutting is good, is easy to the pencil-lead that fractures in the process of cutting, and the pencil-lead utilization rate is very low; The roll pencil-sharpening device of cutting, the not at all easy pencil-lead that fractures of the quality that sharpens a pencil, easy to use, but complex structure, volume is big, cost is higher, be not easy to popularize.
The purpose of this utility model provide one sharpen a pencil quality better, the pencil-lead that is not easy to fracture, the cutter that sharpens a pencil simple in structure.
The purpose of this utility model is achieved in that it is with the female cone top with opening cutter groove pencil stub to be located, automatically the cyclic spring pawl of rotation pushing mechanism axial and radial location with pencil shaft, the sharpener that finger push moves along the shell guide rail moves back and forth simultaneously and sharpens a pencil, automatically the rotation pushing mechanism to moving back and forth cyclic spring pawl rotation simultaneously, reaches the good effect that sharpens a pencil along enclosure axis.
The utility model comprises shell, has the female cone top of opening cutter groove, sharpener, rotate pushing mechanism automatically, it is characterized in that: shell is a strip, one section is tubular, the shaft orientation opening groove that another section takes the shape of the letter U for cross section, at this opening notch guide rail is arranged, this guide rail has one section to be slant rail, and guide rail is arranged in the barrel portion front end inboard of shell, and the barrel portion front port of shell has spacing; Female cone withstands in the open slot of shell, and the opening cutter groove on female cone top upwards; Shell aperture groove slant rail is inclined to the oblique angle in the projection of the shell plane of symmetry and the axis of shell, and the position pushes up the oblique angle of corresponding slant rail with female cone and the oblique angle on female cone top matches, and can be 1/2nd of female cone tip circle cone angle; One handle of a knife is arranged, and there is guide groove on the both sides of handle of a knife, and handle of a knife laterally is installed in the open slot of shell by the guide rail of guide groove and shell, and sharpener laterally is fastened on handle of a knife, and the sharpener bending edge of a knife has a projection forward under the handle of a knife; Automatically the rotation pushing mechanism mainly is made up of the apical tooth circle that is installed in the shell barrel portion successively, commentaries on classics gear ring, spiral compression spring; The internal diameter of apical tooth circle external diameter and shell barrel portion matches, there is guide groove in the outside of apical tooth circle, and the interior side rails of shell is embedded in the guide groove of apical tooth circle, and the front end of apical tooth circle has the boss greater than the port limiting stand, this boss can withstand on the projection of handle of a knife, and there is circumferential apical tooth the rear end of apical tooth circle; Changeing the external diameter of gear ring and the internal diameter of shell barrel portion matches, the front end inner ring that changes gear ring is the cyclic spring pawl that matches with pencil shaft, changeing gear ring front end outer ring is circumferential saw shape tooth, the pitch face of this saw shape tooth is consistent with a pitch face of the apical tooth of apical tooth circle also to be meshed with the apical tooth of apical tooth circle, the rear end face of the interior side rails of shell tilts with the axis of shell and is consistent with a pitch face of apical tooth circle apical tooth, and can be meshed with the saw shape tooth that changes gear ring, the two ends of spiral compression spring withstand on respectively changes gear ring and the spacing ring that is installed in the shell tail end.
The above-mentioned cutter that sharpens a pencil is characterized in that: back one section of shell aperture groove guide rail is the level gauge parallel with housing axis, is convenient to pusher apical tooth circle.
The above-mentioned cutter that sharpens a pencil is characterized in that: at the front end of shell one Rotary pencil sharpener is installed.
The above-mentioned cutter that sharpens a pencil is characterized in that: the slant rail of shell aperture groove is unequal before and after the angle of the projection of the shell plane of symmetry and housing axis, and the angle that the slant rail front end forms can be cut out long tip of a pencil less than the angle that the slant rail remainder forms.
The above-mentioned cutter that sharpens a pencil is characterized in that: there is screw thread the outside and shell tail end inboard at said spacing ring.
The utility model is to use like this: the pencil front end is put in the female cone top behind shell, the cyclic spring pawl just blocks pencil shaft, pencil is just axially and radially all locate, point push broach handle backward, handle of a knife moves backward along the guide rail of shell aperture groove, the projection of handle of a knife be pressed onto move behind the boss apical tooth circle of apical tooth circle when the apical tooth of apical tooth circle with after the saw shape tooth that changes gear ring is meshed, because making, the component effect of pitch face changes gear ring rotation when moving backward, point push broach handle forward, sharpener sharpens a pencil forward along slant rail, changeing gear ring ejection gear ring under the effect of spiral compression spring moves forward, the effect of the angled end-face of side rails in the enclosure commentaries on classics gear ring down continues rotation in the process of reach, so reciprocal promotion handle of a knife, and apical tooth circle and commentaries on classics gear ring constantly move forward and backward, changeing gear ring constantly rotates, handle of a knife moves forward and backward, changes gear ring and changes an angle, and sharpener is cut pencil, up to cutting, extract pencil out.As add Rotary pencil sharpener, and cut out taper seat with Rotary pencil sharpener earlier, put in the cutting of female cone top again, the speed that sharpens a pencil is faster.
Because the utility model is taked said structure, pencil can be axially and radial location in the process that sharpens a pencil, so sharpen a pencil quality good, be not easy the pencil-lead that fractures, structure is simpler than the pencil-sharpening device of the cutting of rolling, cost is also low, is convenient to factories and miness engineering department, the student uses.
Detailed structure of the present utility model is provided by embodiment and accompanying drawing thereof.
Fig. 1 is the longitudinal sectional view of the utility model embodiment one.
Fig. 2 is the longitudinal sectional view of embodiment one shell.
Fig. 3 is the profile along A-A line among Fig. 2.
Fig. 4 is the profile along B-B line among Fig. 2.
Fig. 5 is the profile along C-C line among Fig. 4.
Fig. 6 is the vertical view of relative Fig. 2.
Fig. 7 is the cutaway view along E-E line among Fig. 6.
Fig. 8 is the cutaway view along D-D line among Fig. 6.
Fig. 9 is the axial cutaway view of the apical tooth circle of embodiment one.
Figure 10 is the right view relative with Fig. 9.
Figure 11 is the cutaway view along G-G line among Figure 10.
Figure 12 is the axial cutaway view of the commentaries on classics gear ring of embodiment one.
Figure 13 is the left view relative with Figure 12.
Figure 14 is the cutaway view along H-H line among Figure 13.
Figure 15 is the cutaway view along the plane of symmetry of handle of a knife.
Figure 16 is the left view relative with Figure 15.
Figure 17 is the cutaway view along F-F line among Figure 15.
Figure 18 be female cone top vertically cut view, header board and support plate partly cut-away.
Figure 19 is the left view relative with Figure 18.
Figure 20 is the vertical view relative with Figure 18.
Figure 21 is the longitudinal sectional view of the utility model embodiment two, and the projection of handle of a knife is pressed in the apical tooth circle among the figure.
The relative Fig. 1 of above-mentioned Fig. 9 to Figure 20 amplifies 2 times.
Among the above-mentioned figure:
1, shell 2, sharpener 3, handle of a knife
4, female cone top 5, apical tooth circle 6, commentaries on classics gear ring
7, spiral compression spring 8, spacing ring 9, barrel portion
10, bucking ladder 11, saw shape tooth 12, apical tooth
13, cyclic spring pawl 14, guide rail 15, limiting stand
16, open slot 17, limiting stand 18, rear end face
19, slant rail 20, level gauge 21, opening guide groove
22, pitch face 23, pitch face 24, cutter slot
25, bar under projection 26, guide groove 27, the guide groove
28, edge of a knife groove face 29, back plate 30, support plate
31, header board 32, edge of a knife groove 33, Rotary pencil sharpener 34, sharpener
The basic structure of the utility model embodiment one is seen Fig. 1, it comprises shell 1, have the female cone top 4, sharpener 2 of opening cutter groove 32, rotate pushing mechanism automatically, it is characterized in that: shell 1 is strip, the structure of shell is referring to Fig. 2, Fig. 3, Fig. 4, Fig. 6, Fig. 7, Fig. 8, one section is barrel portion 9, the shaft orientation opening groove 16 that another section takes the shape of the letter U for cross section, at this opening notch guide rail is arranged, this guide rail has one section to be slant rail 19, there are 3 guide rails 14 barrel portion 9 front end inboards at shell 1, and barrel portion 9 front ports of shell 1 have circular arc limiting stand 17; Female cone top 4 is spacing by limiting stand 15 in the open slot 16 of shell 1, the structure on female cone top 4 is referring to Figure 18, Figure 19, Figure 20, the opening cutter groove 32 on female cone top 4 upwards both sides be two edge of a knife groove faces 28 in a plane, and female cone pushes up 4 front and back header board 31, back plate 29 respectively; Shell aperture groove slant rail 19 is inclined to the oblique angle in the projection of shell 1 plane of symmetry and the axis of shell, and the position pushes up the oblique angle α of 4 corresponding slant rails 19 with female cone and the oblique angle on female cone top 4 matches, and pushes up 1/2nd of 4 coning angles for female cone in the present embodiment; The structure that one handle of a knife, 3 handle of a knifes 3 are arranged is referring to Figure 15, Figure 16, Figure 17, there is guide groove 26 on the both sides of handle of a knife 3, handle of a knife 3 laterally is installed in the open slot 16 of shell 1 by the guide rail of guide groove 26 and shell 1, sharpener 2 laterally is fastened on the cutter slot 24 of handle of a knife 3, the sharpener 2 bending edges of a knife forward, handle of a knife has a projection 25 for 3 times; Automatically the rotation pushing mechanism mainly is made up of the apical tooth circle 5 that is installed in shell 1 barrel portion 9 successively, commentaries on classics gear ring 6, spiral compression spring 7; The structure of apical tooth circle 5 is referring to Fig. 9, Figure 10, Figure 11, the internal diameter of apical tooth circle 5 external diameters and shell barrel portion 9 matches, there are 3 opening guide grooves 21 in the outside of apical tooth circle 5, the interior side rails 14 of shell 1 is embedded in the guide groove 21 of apical tooth circle, the front end of apical tooth circle 5 has the boss greater than limiting stand 17, this boss can withstand on the projection 25 of handle of a knife 3, and there is circumferential apical tooth 12 rear end of apical tooth circle 5; The structure of changeing gear ring 6 is referring to Figure 12, Figure 13, Figure 14, changeing the external diameter of gear ring 6 and the internal diameter of shell 1 barrel portion 9 matches, the front end inner ring that changes gear ring 9 is the cyclic spring pawl 13 that matches with pencil shaft, changeing gear ring 6 front end outer rings is circumferential saw shape tooth 11, one pitch face 22 of the pitch face 23 of this saw shape tooth 11 and the apical tooth 12 of apical tooth circle 5 is consistent and can be meshed with the apical tooth 12 of apical tooth circle 5, the rear end face 18 of side rails 14 tilts referring to Fig. 5 with the axis of shell 1 in the shell, consistent with a pitch face 22 of apical tooth circle 5 apical tooths 12, and can be meshed with the saw shape tooth 11 that changes gear ring 6, the two ends of spiral compression spring 7 withstand on respectively changes gear ring 6 and the spacing ring 8 that is installed in shell 1 tail end.
Back one section of shell 1 open slot guide rail is the level gauge 20 parallel with shell 1 axis in the present embodiment, is convenient to pusher apical tooth circle 5, and circular arc is excessive between level gauge 20 and the slant rail 19; The slant rail 19 of shell aperture groove 16 is unequal before and after the angle of the projection of the shell plane of symmetry and housing axis, and the angle beta that slant rail 19 front ends form can be cut out long tip of a pencil less than the angle [alpha] that slant rail 19 remainders form; There is screw thread the outside and shell 1 tail end inboard at spacing ring 8, and both are convenient to the pressure of adjustable screw compression spring 7 with being threaded.
Embodiment two of the present utility model sees Figure 21, and it is that shell front end at embodiment one is installed in the Rotary pencil sharpener 33 that has sharpener 34.
Claims (5)
1, cutter that sharpens a pencil, it comprises shell, have the female cone top of opening cutter groove, sharpener, rotate pushing mechanism automatically, it is characterized in that: shell is a strip, one section is tubular, the shaft orientation opening groove that another section takes the shape of the letter U for cross section has guide rail at this opening notch, and this guide rail has one section to be slant rail, there is guide rail barrel portion front end inboard at shell, and the barrel portion front port of shell has limiting stand; Female cone withstands in the open slot of shell, and the opening cutter groove on female cone top upwards; Shell aperture groove slant rail is inclined to the oblique angle in the projection of the shell plane of symmetry and the axis of shell, and the position pushes up the oblique angle of corresponding slant rail with female cone and the oblique angle on female cone top matches; One handle of a knife is arranged, and there is guide groove on the both sides of handle of a knife, and handle of a knife laterally is installed in the open slot of shell by the guide rail of guide groove and shell, and sharpener laterally is fastened on handle of a knife, and the sharpener bending edge of a knife has a projection forward under the handle of a knife; Automatically the rotation pushing mechanism mainly is made up of the apical tooth circle that is installed in the shell barrel portion successively, commentaries on classics gear ring, spiral compression spring; The internal diameter of apical tooth circle external diameter and shell barrel portion matches, there is guide groove in the outside of apical tooth circle, and the interior side rails of shell is embedded in the guide groove of apical tooth circle, and the front end of apical tooth circle has the boss greater than the port limiting stand, this boss can withstand on the projection of handle of a knife, and there is circumferential apical tooth the rear end of apical tooth circle; Changeing the external diameter of gear ring and the internal diameter of shell barrel portion matches, the front end inner ring that changes gear ring is the cyclic spring pawl that matches with pencil shaft, changeing gear ring front end outer ring is circumferential saw shape tooth, the pitch face of this saw shape tooth is consistent with a pitch face of the apical tooth of apical tooth circle also to be meshed with the apical tooth of apical tooth circle, the rear end face of the interior side rails of shell tilts with the axis of shell and is consistent with a pitch face of apical tooth circle apical tooth, and can be meshed with the saw shape tooth that changes gear ring, the two ends of spiral compression spring withstand on respectively changes gear ring and the spacing ring that is installed in the shell tail end.
2, the cutter that sharpens a pencil according to claim 1 is characterized in that: back one section of shell aperture groove guide rail is the level gauge parallel with housing axis.
3, the cutter that sharpens a pencil according to claim 1 is characterized in that: at the front end of shell one Rotary pencil sharpener is installed.
4, the cutter that sharpens a pencil according to claim 1 is characterized in that: it is 1/2nd of female cone tip circle cone angle at the oblique angle that the projection of the shell plane of symmetry becomes with the axis of shell that position and female cone push up corresponding slant rail.
5, according to claim 1,2,3, the 4 described cutters that sharpen a pencil, it is characterized in that: the slant rail of shell aperture groove is unequal before and after the angle of the projection of the shell plane of symmetry and housing axis, the angle that the angle that the slant rail front end forms forms less than the slant rail remainder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205400 CN2290487Y (en) | 1997-06-16 | 1997-06-16 | Pencil sharpening tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97205400 CN2290487Y (en) | 1997-06-16 | 1997-06-16 | Pencil sharpening tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2290487Y true CN2290487Y (en) | 1998-09-09 |
Family
ID=33925632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97205400 Expired - Fee Related CN2290487Y (en) | 1997-06-16 | 1997-06-16 | Pencil sharpening tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2290487Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384643C (en) * | 2005-08-18 | 2008-04-30 | 日本蜻蜓铅笔株式会社 | Pencil sharpener |
| CN106090718A (en) * | 2016-08-03 | 2016-11-09 | 袁志贤 | There is the LED device of radiator |
-
1997
- 1997-06-16 CN CN 97205400 patent/CN2290487Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384643C (en) * | 2005-08-18 | 2008-04-30 | 日本蜻蜓铅笔株式会社 | Pencil sharpener |
| CN106090718A (en) * | 2016-08-03 | 2016-11-09 | 袁志贤 | There is the LED device of radiator |
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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 |