CN2161473Y - Propelling pencil with writing-core fed by screw - Google Patents
Propelling pencil with writing-core fed by screw Download PDFInfo
- Publication number
- CN2161473Y CN2161473Y CN 93219787 CN93219787U CN2161473Y CN 2161473 Y CN2161473 Y CN 2161473Y CN 93219787 CN93219787 CN 93219787 CN 93219787 U CN93219787 U CN 93219787U CN 2161473 Y CN2161473 Y CN 2161473Y
- Authority
- CN
- China
- Prior art keywords
- pencil
- penholder
- lead
- core
- pencil core
- 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 device which can be used for exporting a pencil core by the way of rotating a pencil head, comprising the pencil core with screw threads, a guide bulge arranged on a tail part, a guide groove arranged in a penholder, and a pencil head with inner screw threads arranged on the front end of the penholder. The pencil head relative to the penholder can be rotated along an axial direction but can not be separated. When the pencil head is rotated, under the functions of the inner screw threads, the guide bulge and the guide groove, a force along the direction of the penholder exerts the pencil core. Thereby, the pencil core is moved by telescopic motion. Because the pencil core can be provided with a plastic tube outside, the pencil core is not easy to be broken. The pencil head is required to be rotated and the pencil core is required to be sharpened. After the pencil core is used, a new pencil core can be exchanged, which is simple.
Description
This device relates to the device that a kind of mode with the rotation nib is exported pencil-lead.
Wood-bar pencil often adopts pocket knife or pencil sharpener to cut the method for system in use, and is cumbersome, cuts when system, because the off-centre of lead for retractable pencil, and the disconnected core that causes, and the disconnected core that takes place when being hit usually takes place.Push type propelling pencil and bullet type pencil fault rate commonly used at present are higher, are not suitable for lower pupil and use, and also are not suitable for drawing or drawing, so in these fields, Wood-bar pencil can't substitute.
The purpose of this utility model is that a kind of rotating screw thread Black lead writing appliance will be provided, and is intended to substitute Wood-bar pencil, and overcomes the drawback of Wood-bar pencil.
The purpose of this utility model is achieved in that in the penholder of hollow gathering sill, its front end has nib, connect (being carved with internal thread in the deck) by deck between nib and the penholder, this connection makes nib neither separate with penholder, and nib and deck can rotate with respect to penholder again.The pencil-lead that this device uses is a threaded lead for retractable pencil, and it is protruding that its afterbody rigidity connects guiding.It is screwed in the internal thread, make the protruding flange of guiding just in time place gathering sill, when the turn nib, internal thread rotates synchronously, make pencil-lead be subjected to axial force and tangential force, can only translation in gathering sill because guiding is protruding, so tangential force is cancelled, pencil-lead has only along the penholder axis of orientation to translation, has realized screwing out screwing in function.Wherein the production method of pencil-lead screw thread has three kinds, and the internal thread selection corresponding with it has dual mode, and be specific as follows: 1, direct screw-type: directly scribe screw thread on solid lead for retractable pencil, the plastic production that the internal thread material selection is soft slightly.2, sleeve thread tubular type: the threaded plastic tube of lead for retractable pencil overcoat, the plastic production that the internal thread material selection is soft slightly.3, thread tapping formula: the smooth plastic tube of lead for retractable pencil overcoat, internal thread material selection metal or rigid plastics are made.
Attrition component of the present utility model---pencil-lead only need be on common lead for retractable pencil smooth or screw thread plastic tube of overcoat or direct threading and to add guiding protruding on lead for retractable pencil.And shank is that nib, deck, penholder and a tail rubber seat are formed by four parts only, and is simple in structure; Because lead for retractable pencil overcoat plastic tube, so anti-impact force strengthens; Time spent only need be rotated nib, and the scraping pencil-lead gets final product, so easy to use.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof: accompanying drawing is the profile according to the rotating screw thread Black lead writing appliance of sleeve thread tubular type that the utility model proposes.
Accompanying drawing the 1, the 2nd, the details of the concrete device that the utility model proposes.
This apparatus main body comprises a nib (1), penholder (2), nib is connect by deck (3) with penholder, have on the deck left end surface protruding synchronously (4), it connects nib and deck rigidity, and deck will rotate synchronously during the nib rotation, and deck right-hand member diameter is bigger, it blocks penholder, and nib not only can have been rotated but also can not separate to axial with penholder.Internal thread (5) is arranged in the deck, and the penholder inwall has several gathering sills (6), and the penholder afterbody has a tail rubber seat (7).Pencil-lead is by lead for retractable pencil (8), sleeve thread plastic tube (9), terminal tight cover guiding protruding (10) is formed, open a tail rubber seat and pack into it in the penholder and make the protruding flange of guiding put into gathering sill, till the pencil-lead front end heads on internal thread, the turn nib, internal thread rotates, with the engagement of screw thread plastic tube, make its back-out, seal up a tail rubber seat again and get final product.
Claims (3)
1, exports the rotating screw thread Black lead writing appliance of pencil-lead with the written mode of rotation, this device has nib (1), penholder (2), deck (3), lead for retractable pencil (8) is characterized in that internal thread (5) is arranged in the deck (3), gathering sill (6) is arranged in the penholder (2), lead for retractable pencil (8) sleeve thread plastic tube (9), its terminal tight cover guiding protruding (10), penholder (2) afterbody has a tail rubber seat (7).
2, device according to claim 1 is characterized in that the smooth plastic tube of lead for retractable pencil (8) overcoat.
3, device according to claim 1 is characterized in that scribing screw thread on lead for retractable pencil (8) surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219787 CN2161473Y (en) | 1993-07-23 | 1993-07-23 | Propelling pencil with writing-core fed by screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93219787 CN2161473Y (en) | 1993-07-23 | 1993-07-23 | Propelling pencil with writing-core fed by screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2161473Y true CN2161473Y (en) | 1994-04-13 |
Family
ID=33799096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93219787 Expired - Fee Related CN2161473Y (en) | 1993-07-23 | 1993-07-23 | Propelling pencil with writing-core fed by screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2161473Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014000270A1 (en) * | 2012-06-25 | 2014-01-03 | Zhang Junquan | Large-caliber automatic lead pencil |
| CN105620101A (en) * | 2016-01-24 | 2016-06-01 | 王文东 | Screwing-out type propelling pencil |
-
1993
- 1993-07-23 CN CN 93219787 patent/CN2161473Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014000270A1 (en) * | 2012-06-25 | 2014-01-03 | Zhang Junquan | Large-caliber automatic lead pencil |
| CN105620101A (en) * | 2016-01-24 | 2016-06-01 | 王文东 | Screwing-out type propelling pencil |
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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 |