CN2211916Y - Simple propelling pencil - Google Patents
Simple propelling pencil Download PDFInfo
- Publication number
- CN2211916Y CN2211916Y CN 94235639 CN94235639U CN2211916Y CN 2211916 Y CN2211916 Y CN 2211916Y CN 94235639 CN94235639 CN 94235639 CN 94235639 U CN94235639 U CN 94235639U CN 2211916 Y CN2211916 Y CN 2211916Y
- Authority
- CN
- China
- Prior art keywords
- pencil
- penholder
- chuck
- lead
- head
- 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
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The utility model provides a simple core-drop type movable pencil, which is composed of a penholder, a pencil head, a clamp head, a lead core pipe and a pencil tail. The clamp head is made into a tubular structure whose middle is provided with a lug boss. The front end of the clamp head is provided with a clamp jaw. The back end of the clamp head is inserted in the penholder and is connected with the lead core pipe. The pencil head and the penholder are screw connection and a cone in the pencil head is matched with the clamp jaw. Namely the clamp jaw can be clamped or loosened in company with the precession in and out of the pencil head. Compared with an ordinary core-drop type pencil, the utility model has the advantages of simple structure, convenient operation and low cost, and is particularly suitable for primary and secondary school students and students in poor areas.
Description
The utility model relates to a kind of propelling pencil.
Chuck and lead for retractable pencil pipe in the at present general knock type pencil are to be made by the thin and long plastic tube that is all one, its chuck is that the end at plastic tube has three road grooves and forms jaw, need rotate a tail during use promotes plastic tube and moves forward, impel conical surface body expert and then the formation fastening force of jaw in nib of plastic tube front end to fix lead for retractable pencil, masterpiece during because of rotation tail is used on the lower elongated plastic tube of intensity, be easy to make elongated plastic pipe deformation to fracture and manage interior lead for retractable pencil, because the jaw that the distortion of plastic tube not only is difficult to make rotary impetus act on the plastic tube front end is advanced forward, and be easy to make the jaw root to sprain distortion and follow the string.
The purpose of this utility model is that not frangibility of a kind of lead for retractable pencil will be provided, knock type propelling pencil simple in structure, easy to operate.
The purpose of this utility model is achieved in that the tubulose chuck that has boss with centre of plastic production, its front end has two or more jaws, the rear end of chuck is inserted in the front end step aperture of penholder, in the macropore of penholder step rear end, a lead for retractable pencil pipe is installed, the lead for retractable pencil pipe is fixedlyed connected with chuck, nib and penholder are through being threaded, and the endoporus front end of nib is for going out plumbous hole, and the rear end is the conical bore that matches with chuck front end jaw.
The utility model is because nib and jaw action distance are very near, revolving force can act directly on and make the fastening lead for retractable pencil of jaw on the nib, thereby frangibility and jaw are not yielding to have guaranteed lead for retractable pencil, only need rotate nib during use and can make the fastening lead for retractable pencil of jaw, so structure is simple especially, operation is very easy, performance is reliable, and chuck adopts single injection-molded, has save the secondary operations operation, and precision, fineness is higher, assembling greatly reduce difficulty of processing and cost of manufacture, so its price is close with Wood-bar pencil easily, life-span is 10 times of Wood-bar pencil, and the student who is specially adapted to students in middle and primary schools and poverty-stricken area uses.
Figure of description is a structural representation of the present utility model.
Wherein: 1-tail, 2-lead for retractable pencil pipe, 3-lead for retractable pencil, 4-chuck, 5-penholder, 6-nib.
In conjunction with the embodiments the utility model is described in detail with reference to Figure of description.
The utility model is by penholder (5), nib (6), chuck (4), lead for retractable pencil pipe (2), tail (1) is formed, all parts are preferably plastic injection-moulded and form, its penholder (5) is traditional version, the endoporus of penholder (5) is a stepped hole, front end has external screw thread, chuck (4) is the tubular body that a centre has boss, its front end has two or more jaws, the rear end straight-tube portion of chuck (4) is inserted in the front end step aperture of penholder (5), in the macropore of the step rear end of penholder (5), a lead for retractable pencil pipe (2) is installed, lead for retractable pencil pipe (2) is fixedlyed connected with the afterbody of chuck (4), nib (6) and penholder (5) are through being threaded, the endoporus front end of nib (6) is for going out plumbous hole, the conical bore of rear end for matching with chuck (4) front end jaw, because of the jaw of chuck (4) front end matches with conical bore in the nib (6), the internal thread of nib (6) matches with external screw thread on the front end step of penholder (5), like this along with nib (6) precession or back-out on penholder (5), the jaw of chuck (4) will be clamped or be loosened, open a tail (1) during use and put into lead for retractable pencil (3), lead for retractable pencil (3) is by entering in the chuck (4) by lead for retractable pencil pipe (2) from gravity, rotation nib (6) is loosened the jaw on its chuck (4), adjust the length of required lead for retractable pencil (3), rotation nib (6) clamps the jaw on the chuck (4) and writes, writing finishes is inverted pen, rotation nib (6) is loosened the jaw on the chuck (4), lead for retractable pencil (3) is got back under self-gravity action in the lead for retractable pencil pipe (2), screw jaw then, in order to avoid lead for retractable pencil (3) stretches out outside the pen when not writing.Locate to lay rubber and cut plumbery at a tail (1), can deposit standby lead for retractable pencil in the gap between lead for retractable pencil pipe (2) and penholder (5) inwall.
Claims (1)
1, a kind of simple and easy knock type propelling pencil, be by penholder (5), nib (6), chuck (4), lead for retractable pencil pipe (2), tail (1) is formed, it is characterized in that: chuck (4) is the tubular structure of middle band boss, its front end has two or more jaws, the rear end of chuck (4) is inserted in the front end step aperture of penholder (5), in the macropore of penholder (5) step rear end, a lead for retractable pencil pipe (2) is installed, lead for retractable pencil pipe (2) is fixedlyed connected with chuck (4), nib (6) and penholder (5) are through being threaded, the endoporus front end of nib (6) is for going out plumbous hole, the conical bore of rear end for matching with chuck (4) front end jaw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94235639 CN2211916Y (en) | 1994-10-31 | 1994-10-31 | Simple propelling pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94235639 CN2211916Y (en) | 1994-10-31 | 1994-10-31 | Simple propelling pencil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2211916Y true CN2211916Y (en) | 1995-11-08 |
Family
ID=33843844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94235639 Expired - Fee Related CN2211916Y (en) | 1994-10-31 | 1994-10-31 | Simple propelling pencil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2211916Y (en) |
-
1994
- 1994-10-31 CN CN 94235639 patent/CN2211916Y/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 |