CN2444782Y - Magnetic ruler - Google Patents
Magnetic ruler Download PDFInfo
- Publication number
- CN2444782Y CN2444782Y CN 00251256 CN00251256U CN2444782Y CN 2444782 Y CN2444782 Y CN 2444782Y CN 00251256 CN00251256 CN 00251256 CN 00251256 U CN00251256 U CN 00251256U CN 2444782 Y CN2444782 Y CN 2444782Y
- Authority
- CN
- China
- Prior art keywords
- magnetic
- ruler
- chi
- size
- base
- 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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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model discloses a magnetic ruler which is composed of a ruler base (1) and permanent magnetic blocks or magnetic sheets (2), wherein one or a plurality of slots are arranged on the surface of the ruler base (1), and the surface of the ruler base has no scales; the permanent magnetic blocks or the magnetic sheets (2) are inlaid in the slots. The shape, the size and the thickness of the magnetic blocks (2) correspond to the slots. The surface of the ruler base is provided with a thin paint layer or a decorative board, and the surface has no scales. The size, the number and the generated magnetic force of the magnetic blocks (2) are matched with the suction force of a magnetic writing board. The problem of inconveniently drawing a chart on a blackboard is solved. The utility model has the advantages of simple structure, convenient use, etc., and is widely suitable for teachers or designers.
Description
The utility model relates to a kind of Magnetic ruler, more particularly, relates to a kind of Magnetic ruler that is used with magnetic force adhesive blackboard.
In the prior art, there is not to find directly to be pull-in on the blackboard Magnetic ruler to people's picture table usefulness, this results in hand cramps for teachers and designer, ruler slides on blackboard even drops on the ground, not only draw inaccurate figure, and can bring other many trouble, time-consuming and influence teaching efficiency and work efficiency, therefore, must address this problem.
The purpose of this utility model is to provide a kind of Magnetic ruler that can be pull-in on the magnetic force adhesive blackboard, provides convenience draw a diagram for teaching and project planner.
In order to achieve the above object, the utility model has adopted following technical scheme: design a kind of magnetic force chi, on the no scale face of chi base (1), open one or more grooves, be embedded with permanent magnet or magnetic sheet (2) in the groove, shape, size and thickness and the groove of permanent magnet or magnetic sheet (2) adapt, the no scale face of chi base has skim paint or decorative panel, and the suction-combining force of the size of permanent magnet or magnetic sheet (2), quantity and consequent magnetic force and magnetic writing board is complementary.
In implementing process of the present utility model, must be noted that two problems: the one, the size of magnetic patch and thickness will adapt with groove, and magnetic patch can be bonded in the groove with bonding agent, and magnetic patch must not exceed the plane of no scale face, slides on blackboard in order to avoid influence ruler; The 2nd, the quantity that note to embed magnetic patch is wanted suitably, and the magnetic force that makes generation both can enough have been inhaled mutually with magnetic writing board and be unlikely to landing, again can not suction is excessive and difficult takes off from clipboard.On the make, can lay a coat of paint or load onto the decorative panel of skim such as three-ply board and so at no scale face.
Compared with prior art, the utlity model has following tangible advantage; Utilize the effect of magnetic force to make automatic fixed ruler tool when on blackboard, drawing a diagram, not only convenient but also make drawing accurate, improved teaching or design efficiency widely.
The utility model is further described below in conjunction with accompanying drawing: Fig. 1,3 and Fig. 4 all are front views, Fig. 2 is the side view of ruler, 1 is the chi base among the figure, the 2nd, magnetic patch or magnetic sheet, it is different, and strip, Elliptical circle, circle, " L " shape or " V " shape are arranged.
Claims (1)
1, a kind of Magnetic ruler, comprise triangle, rectangle different shape, the chi main body is the graduated chi base of chi mask (1), it is characterized in that: the no scale face of chi base (1) has one or more grooves, be embedded with permanent magnet or magnetic sheet (2) in the groove, shape, size and thickness and the groove of permanent magnet or magnetic sheet (2) adapt, the no scale face of chi base has skim paint or decorative panel, and the suction-combining force of the size of permanent magnet or magnetic sheet (2), quantity and consequent magnetic force and magnetic writing board is complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00251256 CN2444782Y (en) | 2000-09-23 | 2000-09-23 | Magnetic ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00251256 CN2444782Y (en) | 2000-09-23 | 2000-09-23 | Magnetic ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2444782Y true CN2444782Y (en) | 2001-08-29 |
Family
ID=33609239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00251256 Expired - Fee Related CN2444782Y (en) | 2000-09-23 | 2000-09-23 | Magnetic ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2444782Y (en) |
-
2000
- 2000-09-23 CN CN 00251256 patent/CN2444782Y/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 |