CN87213090U - Automatic pencil with breakdown-proof fine lead - Google Patents
Automatic pencil with breakdown-proof fine lead Download PDFInfo
- Publication number
- CN87213090U CN87213090U CN 87213090 CN87213090U CN87213090U CN 87213090 U CN87213090 U CN 87213090U CN 87213090 CN87213090 CN 87213090 CN 87213090 U CN87213090 U CN 87213090U CN 87213090 U CN87213090 U CN 87213090U
- Authority
- CN
- China
- Prior art keywords
- lead
- pencil
- moving casing
- breaking
- writing
- 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 - Lifetime
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- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The utility model discloses an automatic pencil with breakdown-proof fine lead, which is a writing and drawing tool. The utility model can use the fine lead to writing and draw, and the penpoints never generate the breaking phenomenon. The exposed part of the penpoint can reach above 9 mm when being pressed once, and the utility model has the 10 times writing time than the prior propelling pencil with 0.5 mm leads. The utility model is characterized in that by adopting the writing mode of the lead being not exposed the pencil, the nib of the lead and the protection device are contacted with the paper concurrently, the writing is flowing, and the handwriting is even.
Description
The utility model relates to a kind of improved propelling pencil, particularly a kind ofly can use very thin lead for retractable pencil, the propelling pencil of writing, never fractureing when drawing.Existing propelling pencil, lead for retractable pencil exposes handwriting just can be write outward, therefore, three point defects is arranged: 1. lead for retractable pencil can not be too thin, and the thinnest diameter can only reach 0.5 millimeter, can't reach the drawing code requirement.2. write, slightly firmly uneven when drawing, the lead for retractable pencil tip will fracture.3. the continuous writing time is short.
In order to overcome above-mentioned defective, it is a kind of simple in structure that the utility model will provide, the anti-breaking propelling pencil of thin core easy to use.
Operation principle is: have one can be up and down sleeve pipe, with pencil end cover inside.When writing, the tip of sleeve pipe lower end and lead for retractable pencil contacts paper simultaneously, and sleeve pipe rises gradually with the lead for retractable pencil wearing and tearing, and lead for retractable pencil is filled sleeve pipe automatically simultaneously.When sleeve pipe rises to a certain degree by one can degree of tightness device sleeve pipe, lead for retractable pencil are pushed simultaneously so that write next time.
The utility model has been because adopted the ways of writing that does not reveal the lead for retractable pencil head, so even if write, also can not occur when drawing the tip phenomenon that fractures with very thin lead for retractable pencil.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the longitudinal sectional drawing of a kind of concrete structure of utility model.
Fig. 2 is the cutaway view of the anti-breaking propelling pencil of the thin core of Fig. 1.
With reference to Fig. 1, moving casing (2) with smooth outer wall is contained in the recreation room (4) with smooth inner wall, when writing, lead for retractable pencil (1) contacts paper simultaneously with moving casing (2), wearing and tearing along with lead for retractable pencil (1), moving casing (2) will rise gradually, when moving casing (2) rises to holes for clamping (5), finishes once and writes.The plumbous pawl of folder (6) that firmly emits (10) that storage lead (9) and it are fixed together by lower seal moves down then, at this moment pressing from both sides plumbous pawl (6) opens by elasticity, owing to damping rubber (3) is housed on the moving casing (2), at moving casing (2) and lead for retractable pencil (1) from gravity or press from both sides under the effect of plumbous pawl (6) and make moving casing (2) and lead for retractable pencil (1) drop to extreme lower position together.Remove envelope and emit (10) pressure, by spring (7) power, make envelope emit (10), storage lead (9), press from both sides plumbous pawl (6) and set back, press from both sides plumbous pawl (6) and clamp lead for retractable pencil (1) again, so that write next time.
Claims (5)
1, one by recreation room (4), moving casing (2), damping rubber (3), holes for clamping (5), press from both sides the anti-breaking propelling pencil of thin core that plumbous pawl (6), spring (7), penholder (8), storage lead (9), envelope emit (10) to form, it is characterized in that lead for retractable pencil (1) is contained in moving casing (2) and the damping rubber (3), moving casing (2) contacts paper with smooth contact of recreation room (4), lead for retractable pencil when writing (1) simultaneously with moving casing (2).
2,, it is characterized in that long 2～20 millimeters of moving casing (2) and recreation room (4) inwall by the anti-breaking propelling pencil of thin core of claim 1 regulation.
3,, it is characterized in that pressing from both sides plumbous pawl (6) and promote moving casing (2) or make lead for retractable pencil (1) and the synchronous decline of moving casing (2) from gravity by moving casing (2) and lead for retractable pencil (1) by the anti-breaking propelling pencil of thin core of claim 1 regulation.
4, by the anti-breaking propelling pencil of thin core of claim 1 regulation, it is directly little and go out plumbous end outer wall chamfering than the aperture of middle part and root to it is characterized in that moving casing (2) goes out plumbous stomidium.
5, by the anti-breaking propelling pencil of thin core of claim 1 regulation, it is characterized in that lead core diameter is less than 0.5 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213090 CN87213090U (en) | 1987-09-06 | 1987-09-06 | Automatic pencil with breakdown-proof fine lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87213090 CN87213090U (en) | 1987-09-06 | 1987-09-06 | Automatic pencil with breakdown-proof fine lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87213090U true CN87213090U (en) | 1988-10-12 |
Family
ID=4827647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87213090 Expired - Lifetime CN87213090U (en) | 1987-09-06 | 1987-09-06 | Automatic pencil with breakdown-proof fine lead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87213090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625165A (en) * | 2013-11-25 | 2014-03-12 | 万金寿 | Technology of environment-friendly and energy-saving mechanical pencil |
-
1987
- 1987-09-06 CN CN 87213090 patent/CN87213090U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625165A (en) * | 2013-11-25 | 2014-03-12 | 万金寿 | Technology of environment-friendly and energy-saving mechanical pencil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |