CN2216925Y - Multi-core means of propelling pencil - Google Patents
Multi-core means of propelling pencil Download PDFInfo
- Publication number
- CN2216925Y CN2216925Y CN 94230006 CN94230006U CN2216925Y CN 2216925 Y CN2216925 Y CN 2216925Y CN 94230006 CN94230006 CN 94230006 CN 94230006 U CN94230006 U CN 94230006U CN 2216925 Y CN2216925 Y CN 2216925Y
- Authority
- CN
- China
- Prior art keywords
- pencil
- lead
- multicore device
- core
- propelling 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 relates to a multi-core tool of an automatic pencil. The upper part of the multi-core tool of the automatic pencil is smooth curve, the center is provided with a through hole whose diameter is about 1.2 - 1.8 times of the diameter of a pencil core, the multi-core tool can be fixed on the inner wall of the pencil core pipe whose distance from the upper end of the pencil core pipe is larger than the length of the pencil core. The multi-core tool of the automatic pencil can be matched with existing various automatic pencils to be used.
Description
The utility model relates to a kind of propelling pencil multicore device.
The existing propelling pencil lead for retractable pencil of can only once packing into mostly, during use, lead for retractable pencil is changed frequent, and the lead for retractable pencil phenomenon that often fractures in the pen.
The purpose of this utility model is a kind of propelling pencil multicore device of design, makes in the pen and can store many lead for retractable pencils, and after every lead for retractable pencil used up, next root lead for retractable pencil came into operation automatically.
The utility model is achieved in that
A kind of propelling pencil multicore device relates to the lead for retractable pencil pipe, and it is characterized in that being equipped with in the lead for retractable pencil pipe top is concave surface, and there is the multicore device of a through hole at the center.
Further scheme is that described concave surface is a smooth surface.
Further scheme is, described smooth surface is sphere or taper seat.
The diameter of through hole described in the utility model is that 1.2～1.8 times of lead core diameter are advisable.
Multicore device described in the utility model is slightly larger than lead for retractable pencil length apart from lead for retractable pencil pipe upper end distance and is advisable.
The utility model has the advantages that: because the multicore device is housed in the lead for retractable pencil pipe, make lead for retractable pencil pipe top can prepare many lead for retractable pencils, through hole on the multicore device not only can guarantee once only to allow a lead for retractable pencil to pass through smoothly, and face and also strengthened the concentric effect of damping with lead for retractable pencil reduces the lead for retractable pencil phenomenon that fractures.
Fig. 1 is a partial sectional view of the present utility model.
As Fig. 1, it is the multicore device (2) that there is a through hole at taper seat, center in the top of lead for retractable pencil pipe (1) inwall that one thermosetting is housed in lead for retractable pencil pipe (1), can store several lead for retractable pencils in multicore device (2) the top lead for retractable pencil pipe (1), because through-hole diameter less than two lead core diameter's sums, cooperates with written damping Gu only allow a lead for retractable pencil to pass through hole at every turn.
The utility model propelling pencil multicore device can be used with existing various propelling pencils.
Claims (6)
1, a kind of propelling pencil multicore device relates to lead for retractable pencil pipe (1), and it is characterized in that being equipped with in lead for retractable pencil pipe (1) top is the multicore device (2) that there is a through hole at concave surface, center.
2, propelling pencil multicore device according to claim 1 is characterized in that described concave surface is a smooth surface.
3, propelling pencil multicore device according to claim 2 is characterized in that described smooth surface is a sphere.
4, propelling pencil multicore device according to claim 2 is characterized in that described smooth surface is a taper seat.
5, propelling pencil multicore device according to claim 1, the diameter that it is characterized in that described through hole is 1.2～1.8 times of lead core diameter.
6, propelling pencil multicore device according to claim 1 is characterized in that this multicore device (2) is slightly larger than lead for retractable pencil length apart from lead for retractable pencil pipe (1) upper end distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230006 CN2216925Y (en) | 1994-12-12 | 1994-12-12 | Multi-core means of propelling pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230006 CN2216925Y (en) | 1994-12-12 | 1994-12-12 | Multi-core means of propelling pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2216925Y true CN2216925Y (en) | 1996-01-10 |
Family
ID=33842208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94230006 Expired - Fee Related CN2216925Y (en) | 1994-12-12 | 1994-12-12 | Multi-core means of propelling pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2216925Y (en) |
-
1994
- 1994-12-12 CN CN 94230006 patent/CN2216925Y/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 | ||
| 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 |