CN209616725U - A kind of pencil with rubber - Google Patents
A kind of pencil with rubber Download PDFInfo
- Publication number
- CN209616725U CN209616725U CN201920211787.4U CN201920211787U CN209616725U CN 209616725 U CN209616725 U CN 209616725U CN 201920211787 U CN201920211787 U CN 201920211787U CN 209616725 U CN209616725 U CN 209616725U
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- CN
- China
- Prior art keywords
- penholder
- rubber
- tangent line
- circular arc
- pencil
- 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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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The utility model discloses a kind of pencils with rubber, including graphite lead core, penholder, rubber case.Graphite lead core is set in penholder.Penholder includes the first circular arc, the second circular arc, the first tangent line and the second tangent line in the cross section for the penholder that the long axis direction cutting along penholder cylinder is formed there are two section, section.The tail end of first circular arc is connected with the head end of the first tangent line.The tail end of first tangent line has the head end of the second circular arc to be connected.The tail end of second circular arc is connected with the head end of the second tangent line.The tail end of second tangent line is connected with the head end of the first circular arc.Groove, the outer surface of the inner wall cooperation penholder of groove are provided on rubber case, rubber case is set to the first end of penholder.The connection of rubber case and penholder is realized by the frictional force of penholder and rubber case inner wall, impracticable metal component, reduce security risk that pencil uses and environmentally friendly risk, while the design of two sections can prevent during writing that there is a phenomenon where tumble for pencil.
Description
Technical field
The utility model belongs to field of stationery more particularly to a kind of pencil with rubber.
Background technique
Have in the daily study of many people of writing demand, especially pupil and the daily research of scientific research personnel, usually needs
To use pencil and rubber.For pencil as a kind of stationery, it is divided into three developing stage, is graphite, wooden penholder, band cap respectively
Pencil.The band eraser pencil produced and used extensively at present, the connection of rubber metal and pencil, pencil ontology are wood cylindrical type
Or hexagonal prismoid type.This eraser pencil of the prior art is convenient and practical, but there are still some disadvantages to optimize: 1, junction
The production and discarding of metal aluminum foil can generate that heavy metal pollution 2, junction metal aluminum foil section are sharp, and there are potential using safe
There are problems that easily sliding in problem 3, cylinder or prism use.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of pencils with rubber, to reduce the safety that pencil uses
Risk and environmentally friendly risk simultaneously achieve the effect that Anti-rolling.
To solve the above problems, the technical solution of the utility model are as follows:
A kind of pencil with rubber of the utility model, including graphite lead core, penholder, rubber case；
The graphite lead core is set in the penholder；
There are two the pens that section, the section are formed in the long axis direction cutting along the penholder cylinder for the penholder
The cross section of bar includes the first circular arc, the second circular arc, the first tangent line and the second tangent line；
The tail end of first circular arc is connected with the head end of first tangent line；
The tail end of first tangent line has the head end of second circular arc to be connected；
The tail end of second circular arc is connected with the head end of second tangent line；
The tail end of second tangent line is connected with the head end of first circular arc；
Groove is provided on the rubber case, the inner wall of the groove cooperates the outer surface of the penholder, and the rubber is arranged
In the first end of the penholder.
Arc angle corresponding to the pencil with rubber of the utility model, first tangent line and second tangent line is equal
For α, 50 °≤α≤60 °；Arc angle corresponding to second circular arc be β, 30 °≤β≤36 °.
The length of the pencil with rubber of the utility model, the penholder is 175~180mm, and the diameter of the penholder is
7.5~8.5mm.
The pencil with rubber of the utility model, the material of the penholder are log or other wooden mixing pressed materials.
The pencil with rubber of the utility model, the rubber case with a thickness of 2~5mm, length is 10~20mm, described
The depth of groove is 5~10mm.
The diameter of the pencil with rubber of the utility model, the groove of the rubber case can expand compared to the penholder
0.5mm, and the salient point of several protrusion 0.5mm is set on the inner wall of the groove.
The utility model due to using the technology described above, has the following advantages that it compared with prior art and actively
Effect:
An embodiment of the present invention realizes the company of rubber case and penholder by the frictional force of penholder and rubber case inner wall
It connects, does not use metal component, reduce security risk that pencil uses and environmentally friendly risk, while the design of two sections can be to prevent
Only there is a phenomenon where tumble for pencil during writing.
Detailed description of the invention
Fig. 1 is the overall schematic of the pencil with rubber of the utility model；
Fig. 2 is the whole front view of the pencil with rubber of the utility model；
Fig. 3 is the sectional view of the penholder of the pencil with rubber of the utility model；
Fig. 4 is the schematic diagram of the rubber case of the pencil with rubber of the utility model；
Fig. 5 is the top view of the penholder of the pencil with rubber of the utility model；
Fig. 6 is the top view of the rubber case of the pencil with rubber of the utility model.
Description of symbols: 1: rubber case；2: penholder；3: the first circular arcs；4: the first tangent lines；5: the second circular arcs；6: the second
Tangent line；7: salient point；8: graphite lead core.
Specific embodiment
Below in conjunction with the drawings and specific embodiments to the utility model proposes a kind of pencil with rubber make it is further detailed
It describes in detail bright.According to following explanation and claims, will be become apparent from feature the advantages of the utility model.
Referring to Fig. 1 to Fig. 6, in one embodiment, a kind of pencil with rubber of the utility model, including graphite lead core
8, penholder 2, rubber case 1.Graphite lead core 8 is set in penholder 2.In the long axis direction cutting along 2 cylinder of penholder, there are two cut penholder 2
Face, the cross section for the penholder 2 that section is formed include the first circular arc 3, the second circular arc 5, the first tangent line 4 and the second tangent line 6.First circle
The tail end of arc 3 is connected with the head end of the first tangent line 4.The tail end of first tangent line 4 has the head end of the second circular arc 5 to be connected.Second circular arc 5
Tail end be connected with the head end of the second tangent line 6.The tail end of second tangent line 6 is connected with the head end of the first circular arc 3.It is opened on rubber case 1
Fluted, the outer surface of the inner wall cooperation penholder 2 of groove, rubber case 1 is set to the first end of penholder 2.Pass through penholder 2 and rubber case
The frictional force of 1 inner wall reduces the safety wind that pencil uses without using metal component with the connection for realizing rubber case 1 and penholder 2
Danger and environmentally friendly risk, while the design of two sections can prevent during writing that there is a phenomenon where tumble for pencil.It uses
When by 1 set of rubber case in 2 one end of penholder, other end sharpening carries out writing use, and when needing to wipe, the i.e. available rubber of pencil may be reversed
Leather sheath 1 is wiped, convenient to use using the rubber case 1 of integrated design, helps to improve study and work efficiency, two sections
Design can be better protected from tumbling in writing process pencil, while can effectively promote grip comfort level, and it is tired to reduce grip
Labor.
Further, referring to Fig. 3, arc angle corresponding to the first tangent line 4 and the second tangent line 6 is α, 50 °≤α≤
60°.Arc angle corresponding to second circular arc 5 be β, 30 °≤β≤36 °.
Further, the length of penholder 2 is 175~180mm, and the diameter of penholder 2 is 7.5~8.5mm.
Preferably, the material of penholder 2 is log or other wooden mixing pressed materials.
Further, rubber case 1 with a thickness of 2~5mm, length is 10~20mm, and the depth of groove is 5~10mm.
Further, the diameter of the groove of rubber case 1 can expand 0.5mm compared to penholder 2, and set on the inner wall of groove
Set the salient point 7 of several protrusion 0.5mm.By the way that salient point 7 is arranged, frictional force can be increased, improve the pull-out capacity of rubber case 1.
Preferably, 2 diameter of penholder is 8mm.Arc angle α corresponding to first tangent line 4 and the second tangent line 6 be 55 °, second
Arc angle β corresponding to circular arc 5 is 35 °.
Preferably, the inner wall of groove, which is gone into battle, shows the salient point 7 of 6 protrusion 0.5mm.
The embodiments of the present invention is explained in detail above in conjunction with attached drawing, but the utility model is not limited to
Above embodiment.Even if to the utility model, various changes can be made, if these variations belong to the utility model claims
And its within the scope of equivalent technologies, then still fall among the protection scope of the utility model.
Claims (6)
1. a kind of pencil with rubber, which is characterized in that including graphite lead core, penholder, rubber case；
The graphite lead core is set in the penholder；
The penholder cuts the penholder formed there are two section, the section in the long axis direction along the penholder cylinder
Cross section includes the first circular arc, the second circular arc, the first tangent line and the second tangent line；
The tail end of first circular arc is connected with the head end of first tangent line；
The tail end of first tangent line has the head end of second circular arc to be connected；
The tail end of second circular arc is connected with the head end of second tangent line；
The tail end of second tangent line is connected with the head end of first circular arc；
Groove is provided on the rubber case, the inner wall of the groove cooperates the outer surface of the penholder, and the rubber case is set to institute
State the first end of penholder.
2. the pencil described in accordance with the claim 1 with rubber, which is characterized in that first tangent line and the second tangent line institute
Corresponding arc angle is α, and 50 °≤α≤60 °；Arc angle corresponding to second circular arc be β, 30 °≤β≤36 °.
3. the pencil described in accordance with the claim 1 with rubber, which is characterized in that the length of the penholder is 175~180mm,
The diameter of the penholder is 7.5~8.5mm.
4. the pencil described in accordance with the claim 1 with rubber, which is characterized in that the material of the penholder is log or other wood
Matter mixes pressed material.
5. the pencil described in accordance with the claim 1 with rubber, which is characterized in that the rubber case with a thickness of 2~5mm, it is long
Degree is 10~20mm, and the depth of the groove is 5~10mm.
6. according to claim 5 with the pencil of rubber, which is characterized in that the diameter of the groove of the rubber case can compare
Expand 0.5mm in the penholder, and the salient point of several protrusion 0.5mm is set on the inner wall of the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920211787.4U CN209616725U (en) | 2019-02-19 | 2019-02-19 | A kind of pencil with rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920211787.4U CN209616725U (en) | 2019-02-19 | 2019-02-19 | A kind of pencil with rubber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209616725U true CN209616725U (en) | 2019-11-12 |
Family
ID=68453922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920211787.4U Expired - Fee Related CN209616725U (en) | 2019-02-19 | 2019-02-19 | A kind of pencil with rubber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209616725U (en) |
-
2019
- 2019-02-19 CN CN201920211787.4U patent/CN209616725U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191112 Termination date: 20220219 |