CN204172566U - A kind of penknife cutter hub - Google Patents
A kind of penknife cutter hub Download PDFInfo
- Publication number
- CN204172566U CN204172566U CN201420580507.4U CN201420580507U CN204172566U CN 204172566 U CN204172566 U CN 204172566U CN 201420580507 U CN201420580507 U CN 201420580507U CN 204172566 U CN204172566 U CN 204172566U
- Authority
- CN
- China
- Prior art keywords
- blade
- degree
- pen
- central axis
- laying hole
- 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 kind of penknife cutter hub, comprise knife rest, knife rest is provided with pen-laying hole, knife rest is provided with two groups of blades, two groups of blades are symmetrical arranged relative to the central axis of pen-laying hole, often organizing blade comprises for rolling up the first blade of cutting penholder and for rolling up the second blade cutting lead for retractable pencil, angle between first blade and the central axis of pen-laying hole is 10 degree ~ 11 degree, angle between second blade and the central axis of pen-laying hole is 8.5 degree ~ 9.5 degree, and the length of the first blade and the length sum of the second blade are 20mm ~ 26mm; Advantage is when roll cutting pencil, the tapering of the penholder after volume can be made to cut is 20 degree ~ 22 degree, the tapering that volume cuts rear lead for retractable pencil is also 17 degree ~ 19 degree, the basis ensureing the comfortableness that user holds a pen increases the length of the lead for retractable pencil front portion as use part, improve the durability of lead for retractable pencil, avoid frequently cutting pen in use procedure.
Description
Technical field
The utility model relates to a kind of penknife technology, especially relates to a kind of penknife cutter hub.
Background technology
Existing penknife cutter hub has two kinds usually: single blade cutter hub and double blade cutter hub.Single blade cutter hub comprises knife rest and a slice blade, and knife rest is provided with pen-laying hole, and blade is arranged on knife rest, and after pencil inserts from pen-laying hole, rotation pencil, pencil sharpener is cut by blade.Double blade cutter hub comprises knife rest and two panels blade, and knife rest is provided with pen-laying hole, and two panels blade to be arranged on knife rest and symmetrical relative to the central axis of pen-laying hole, and after pencil inserts from pen-laying hole, rotation pencil, pencil sharpener is cut by two panels blade simultaneously.
But there is following problem in existing penknife cutter hub: no matter be single blade cutter hub, or double blade cutter hub, its blade cuts penholder and lead for retractable pencil for volume simultaneously, in order to ensure the comfortableness that user holds a pen, the tapering rolling up the penholder after cutting requires to be 20 degree ~ 22 degree usually, angle in existing penknife cutter hub between blade and the central axis of pen-laying hole is set to 10 degree ~ 11 degree usually, causing thus rolling up the tapering cutting rear lead for retractable pencil is also 20 degree ~ 22 degree, the tapering that volume cuts rear lead for retractable pencil is excessive, length as the lead for retractable pencil front portion using part is shorter, lead for retractable pencil is not durable, need in use procedure frequently to cut pen.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of length that can increase lead for retractable pencil front portion as use part, improves the durability of lead for retractable pencil, avoids the penknife cutter hub frequently cutting pen in use procedure.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of penknife cutter hub, comprise knife rest, described knife rest is provided with pen-laying hole, described knife rest is provided with two groups of blades, two groups of blades are symmetrical arranged relative to the central axis of described pen-laying hole, described blade of often organizing comprises for rolling up the first blade of cutting penholder and for rolling up the second blade cutting lead for retractable pencil, angle between the first described blade and the central axis of described pen-laying hole is 10 degree ~ 11 degree, angle between the second described blade and the central axis of described pen-laying hole is 8.5 degree ~ 9.5 degree, the length of the first described blade and the length sum of the second described blade are 20mm ~ 26mm.
Angle between the first described blade and the central axis of described pen-laying hole is 10.5 degree, angle between the second described blade and the central axis of described pen-laying hole is 9 degree, and the length of the first described blade and the length sum of the second described blade are 22mm ~ 23mm.
The material of the first described blade is carbon tool steel, and the material of the second described blade is alloy tool steel.This structure, according to lead for retractable pencil and penholder properties of materials, uses the blade of different materials to carry out volume to penholder and lead for retractable pencil respectively and cuts, roll up the service life that the basis of cutting effect improves two groups of blades in guarantee.
Compared with prior art, the utility model has the advantage of two groups of blades by arranging the central axis symmetry relative to pen-laying hole on knife rest, often organizing blade comprises for rolling up the first blade of cutting penholder and for rolling up the second blade cutting lead for retractable pencil, angle between first blade and the central axis of pen-laying hole is 10 degree ~ 11 degree, angle between second blade and the central axis of pen-laying hole is 8.5 degree ~ 9.5 degree, the length of the first blade and the length of the second blade are sum 20mm ~ 26mm, when roll cutting pencil, the tapering of the penholder after volume can be made to cut is 20 degree ~ 22 degree, the tapering that volume cuts rear lead for retractable pencil is also 17 degree ~ 19 degree, the basis ensureing the comfortableness that user holds a pen increases the length of the lead for retractable pencil front portion as use part, improve the durability of lead for retractable pencil, avoid frequently cutting pen in use procedure.
Accompanying drawing explanation
Fig. 1 is stereogram one of the present utility model;
Fig. 2 is stereogram two of the present utility model;
Fig. 3 is front view of the present utility model;
Fig. 4 be in Fig. 3 along A to sectional view;
Fig. 5 is the angular relationship figure often organized in the utility model between blade and pen-laying hole central axis.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
Embodiment one: as shown in the figure, a kind of penknife cutter hub, comprise knife rest 1, knife rest 1 is provided with pen-laying hole 2, knife rest 1 is provided with two groups of blades 3, two groups of blades 3 are symmetrical arranged relative to the central axis 21 of pen-laying hole 2, often organizing blade 3 comprises for rolling up the first blade 31 of cutting penholder and for rolling up the second blade 32 cutting lead for retractable pencil, angle a between first blade 31 and the central axis 21 of pen-laying hole 2 is 10 degree, angle b between second blade 32 and the central axis 21 of pen-laying hole 2 is 8.5 degree, and the length of the first blade 31 and the length sum of the second blade 32 are 20mm.
In the present embodiment, the material of the first blade 31 is carbon tool steel, and the material of the second blade 32 is alloy tool steel.
Embodiment two: as shown in the figure, a kind of penknife cutter hub, comprise knife rest 1, knife rest 1 is provided with pen-laying hole 2, knife rest 1 is provided with two groups of blades 3, two groups of blades 3 are symmetrical arranged relative to the central axis 21 of pen-laying hole 2, often organizing blade 3 comprises for rolling up the first blade 31 of cutting penholder and for rolling up the second blade 32 cutting lead for retractable pencil, angle a between first blade 31 and the central axis 21 of pen-laying hole 2 is 11 degree, angle b between second blade 32 and the central axis 21 of pen-laying hole 2 is 9.5 degree, and the length of the first blade 31 and the length sum of the second blade 32 are 26mm.
In the present embodiment, the material of the first blade 31 is carbon tool steel, and the material of the second blade 32 is alloy tool steel.
Embodiment three: as shown in the figure, a kind of penknife cutter hub, comprise knife rest 1, knife rest 1 is provided with pen-laying hole 2, knife rest 1 is provided with two groups of blades 3, two groups of blades 3 are symmetrical arranged relative to the central axis 21 of pen-laying hole 2, often organizing blade 3 comprises for rolling up the first blade 31 of cutting penholder and for rolling up the second blade 32 cutting lead for retractable pencil, angle a between first blade 31 and the central axis 21 of pen-laying hole 2 is 10.5 degree, angle b between second blade 32 and the central axis 21 of pen-laying hole 2 is 9 degree, and the length of the first blade 31 and the length sum of the second blade 32 are 22mm.
In the present embodiment, the material of the first blade 31 is carbon tool steel, and the material of the second blade 32 is alloy tool steel.
Embodiment four: as shown in the figure, a kind of penknife cutter hub, comprise knife rest 1, knife rest 1 is provided with pen-laying hole 2, knife rest 1 is provided with two groups of blades 3, two groups of blades 3 are symmetrical arranged relative to the central axis 21 of pen-laying hole 2, often organizing blade 3 comprises for rolling up the first blade 31 of cutting penholder and for rolling up the second blade 32 cutting lead for retractable pencil, angle a between first blade 31 and the central axis 21 of pen-laying hole 2 is 10.5 degree, angle b between second blade 32 and the central axis 21 of pen-laying hole 2 is 9 degree, and the length of the first blade 31 and the length sum of the second blade 32 are 23mm.
In the present embodiment, the material of the first blade 31 is carbon tool steel, and the material of the second blade 32 is alloy tool steel.
Claims (3)
1. a penknife cutter hub, comprise knife rest, described knife rest is provided with pen-laying hole, it is characterized in that described knife rest being provided with two groups of blades, two groups of blades are symmetrical arranged relative to the central axis of described pen-laying hole, described blade of often organizing comprises for rolling up the first blade of cutting penholder and for rolling up the second blade cutting lead for retractable pencil, angle between the first described blade and the central axis of described pen-laying hole is 10 degree ~ 11 degree, angle between the second described blade and the central axis of described pen-laying hole is 8.5 degree ~ 9.5 degree, the length of the first described blade and the length sum of the second described blade are 20mm ~ 26mm.
2. a kind of penknife cutter hub according to claim 1, it is characterized in that the angle between the first described blade and the central axis of described pen-laying hole is 10.5 degree, angle between the second described blade and the central axis of described pen-laying hole is 9 degree, and the length of the first described blade and the length sum of the second described blade are 22mm ~ 23mm.
3. a kind of penknife cutter hub according to claim 1, is characterized in that the material of the first described blade is carbon tool steel, and the material of the second described blade is alloy tool steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420580507.4U CN204172566U (en) | 2014-10-09 | 2014-10-09 | A kind of penknife cutter hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420580507.4U CN204172566U (en) | 2014-10-09 | 2014-10-09 | A kind of penknife cutter hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204172566U true CN204172566U (en) | 2015-02-25 |
Family
ID=52561402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420580507.4U Expired - Fee Related CN204172566U (en) | 2014-10-09 | 2014-10-09 | A kind of penknife cutter hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204172566U (en) |
-
2014
- 2014-10-09 CN CN201420580507.4U patent/CN204172566U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20171009 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |