CN202186170U - Nib protective sleeve of cylindrical pencil - Google Patents
Nib protective sleeve of cylindrical pencil Download PDFInfo
- Publication number
- CN202186170U CN202186170U CN2011202759761U CN201120275976U CN202186170U CN 202186170 U CN202186170 U CN 202186170U CN 2011202759761 U CN2011202759761 U CN 2011202759761U CN 201120275976 U CN201120275976 U CN 201120275976U CN 202186170 U CN202186170 U CN 202186170U
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- CN
- China
- Prior art keywords
- cylindrical
- hole
- circular
- millimeters
- nib
- 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
- 230000001681 protective effect Effects 0.000 title claims abstract description 10
- 230000007704 transition Effects 0.000 claims abstract description 7
- 208000004141 microcephaly Diseases 0.000 claims description 6
- 239000012467 final product Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
A nib protective sleeve of a cylindrical pencil is characterized in that the appearance of a cylindrical nib protective sleeve 2 is integrally cylindrical, a cylindrical eraser 3 is sleeved on a circular end hole 27 at one end, the small end at the inner side of a horn-shaped conical hole 22 at the other end is in smooth transition with the circular column hole 23, a small circular hole 25 is arranged between the circular end hole 27 and the circular column hole 23 for communication, and a circular angle 28 is arranged at the junction of the small circular hole 25 and the inner end surface 24 of the circular column hole 23. The trumpet-shaped conical hole 22 of the cylindrical pen point sheath 2 can be sleeved at the non-writing end of the cylindrical pencil 1 during writing, the cylindrical pen point sheath 2 can be taken down from the non-writing end after writing, and the cylindrical pen point sheath is sleeved at the end, which is cut with the cone pen point 12, of the cylindrical pencil 1, so that the pen point 11 is free from collision in the small round hole 25 when being erected, and therefore the occurrence of annoying pen point breaking is reduced. Even if the cylindrical pencil is inadvertently dropped, the nib 11 is protected from the impact.
Description
Affiliated technical field
The utility model stationery ball pen, particularly a kind of nib protective sleeve of cylindrical pencil.
Background technology
Cylindrical pencil is one of the most frequently used writing implement; Owing to possess easily with erasing rubber and wipe this alterability advantage that leaves no trace behind the writing; Liked by the pupil; Even adult's cylindrical pencil also commonly used is at work marked, worked out a draft, the annual cylindrical pencil consumption in the whole world is more than 10,000,000,000.Cylindrical pencil does not in the past all have the cylindrical tip of a pencil of having fined away is equipped with protective device, often is the cylindrical pencil of just having fined away, and just accidentally falls on the ground and has been broken nib, very troublesome.
Summary of the invention
The purpose of the utility model provides a kind of nib protective sleeve of cylindrical pencil, can guarantee to the full extent that cylindrical pencil is not easy to let to give nib to be broken when falling on the ground, and the technical solution of employing is:
A kind of nib protective sleeve of cylindrical pencil; Comprise cylindrical nib sheath 2 and cylindrical erasing rubber 3; Described cylindrical nib sheath 2 appearance integrals are cylinder; Be with cylindrical erasing rubber 3 on the circular stomidium 27 of one end, the inboard microcephaly of the tubaeform conical bore 22 of the other end and circular columns hole 23 smooth transition have small sircle hole 25 to link up mutually between circular stomidium 27 and the circular columns hole 23; Small sircle hole 25 has fillet 28 with inner end 24 intersections in circular columns hole 23; And the length of described tubaeform conical bore 22 is 10 millimeters, and it is 1 millimeter that the outer end diameter at butt end of tubaeform conical bore 22 increases than inboard top diameter, the inboard microcephaly of tubaeform conical bore 22 and circular columns hole 23 smooth transition; The aperture in circular columns hole 23 and cylindrical pencil 1 contour dimension system are slightly with tight being slidingly matched, and circular columns hole 23 is 15 millimeters to the degree of depth of its inner end 24; Small sircle hole 25 directly be 4 millimeters, the length of small sircle hole 25 is 10 millimeters; The aperture of circular stomidium 27 is 9 millimeters, and circular stomidium 27 is 5 millimeters to the degree of depth of its bottom 26; Small sircle hole 25 is 2 millimeters with the radius of circular columns hole 23 inner ends, 24 intersection fillets 28.
Can the tubaeform conical bore 22 of cylindrical nib sheath 2 be enclosed within the non-end of writing of cylindrical pencil 1 when writing; Can be after writing with soon can taking off from the non-end of writing by cylindrical nib sheath 2; An end of cutting cone nib 12 that is enclosed within cylindrical pencil 1 gets final product; Make nib 11 face the sky frame and in small sircle hole 25, avoid collision, take place thereby reduced bothersome disconnected written thing.Even at this time let cylindrical pencil fall on the ground because of carelessness, nib 11 still can be avoided collision.
The beneficial effect of the utility model is: adopts cylindrical nib sheath 2 protection nibs 11, takes place thereby reduced bothersome disconnected written thing, and novel, make simply, do not have the troublesome operation step, and be convenient to make and promote.
Description of drawings
Accompanying drawing 1 is that the utility model is enclosed within the profile when writing on the cylindrical pencil 1;
Accompanying drawing 2 is that the utility model is enclosed within the profile when not writing on the cylindrical pencil 1;
Accompanying drawing 3 is cutaway views of the utility model;
Accompanying drawing 4 is A-A profiles of Fig. 3;
Accompanying drawing 5 is perspective views of the cylindrical erasing rubber 3 of the utility model book.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further: a kind of nib protective sleeve of cylindrical pencil; Comprise cylindrical nib sheath 2 and cylindrical erasing rubber 3; Described cylindrical nib sheath 2 appearance integrals are cylinder; Be with cylindrical erasing rubber 3 on the circular stomidium 27 of one end, the inboard microcephaly of the tubaeform conical bore 22 of the other end and circular columns hole 23 smooth transition have small sircle hole 25 to link up mutually between circular stomidium 27 and the circular columns hole 23; Small sircle hole 25 has fillet 28 with inner end 24 intersections in circular columns hole 23; The length of tubaeform conical bore 22 is 10 millimeters, and the outer end diameter at butt end of tubaeform conical bore 22 increases 1 millimeter than inboard top diameter, the inboard microcephaly of tubaeform conical bore 22 and circular columns hole 23 smooth transition; The aperture in circular columns hole 23 and cylindrical pencil 1 contour dimension system are slightly with tight being slidingly matched, and circular columns hole 23 is 15 millimeters to the degree of depth of its inner end 24; The diameter of small sircle hole 25 is 4 millimeters, and the length of small sircle hole 25 is 10 millimeters; The aperture of circular stomidium 27 is 9 millimeters, and circular stomidium 27 is 5 millimeters to the degree of depth of its bottom 26; Small sircle hole 25 is 2 millimeters with the radius of circular columns hole 23 inner ends, 24 intersection fillets 28.
Can the tubaeform conical bore 22 of cylindrical nib sheath 2 be enclosed within the non-end of writing of cylindrical pencil 1 when writing, so as not to seeking the time spent.Can be after writing with soon can cylindrical nib sheath 2 taking off from the non-end of writing of cylindrical pencil 1; The nib of sharpening that is enclosed within cylindrical pencil 1 again will be write an end and got final product; Even at this time let cylindrical pencil fall on the ground because of carelessness; Rely on the support of the cone nib 12 on small sircle hole on the cylindrical nib sheath 2 25 and 28 pairs of cylindrical pencils 1 of circular columns hole 23 inner ends, 24 intersection fillets, make nib 11 face the sky frame and in small sircle hole 25, avoid collision.Thereby improve anti-collision ability greatly, reduced bothersome disconnected written thing and taken place.
Claims (1)
1. the nib protective sleeve of a cylindrical pencil; Comprise cylindrical nib sheath (2) and cylindrical erasing rubber (3); It is characterized in that: described cylindrical nib sheath (2) appearance integral is cylinder; Be with cylindrical erasing rubber (3) on the circular stomidium of one end (27), the inboard microcephaly of the tubaeform conical bore (22) of the other end and circular columns hole (23) smooth transition have small sircle hole (25) to link up mutually between circular stomidium (27) and circular columns hole (23); Small sircle hole (25) has fillet (28) with inner end (24) intersection in circular columns hole (23); And the length of described tubaeform conical bore (22) is 10 millimeters, and it is 1 millimeter that the outer end diameter at butt end of tubaeform conical bore (22) increases than inboard top diameter, the inboard microcephaly of tubaeform conical bore (22) and circular columns hole (23) smooth transition; The aperture in circular columns hole (23) and cylindrical pencil (1) contour dimension system are slightly with tight being slidingly matched, and circular columns hole (23) are 15 millimeters to the degree of depth of its inner end (24); The diameter of small sircle hole (25) is 4 millimeters, and the length of small sircle hole (25) is 10 millimeters; The aperture of circular stomidium (27) is 9 millimeters, and circular stomidium (27) is 5 millimeters to the degree of depth of its bottom (26); Small sircle hole (25) is 2 millimeters with the radius of circular columns hole (23) inner end (24) intersection fillet (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202759761U CN202186170U (en) | 2011-07-23 | 2011-07-23 | Nib protective sleeve of cylindrical pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202759761U CN202186170U (en) | 2011-07-23 | 2011-07-23 | Nib protective sleeve of cylindrical pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202186170U true CN202186170U (en) | 2012-04-11 |
Family
ID=45917639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202759761U Expired - Fee Related CN202186170U (en) | 2011-07-23 | 2011-07-23 | Nib protective sleeve of cylindrical pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202186170U (en) |
-
2011
- 2011-07-23 CN CN2011202759761U patent/CN202186170U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20120723 |