CN2164064Y - Abacus - Google Patents
Abacus Download PDFInfo
- Publication number
- CN2164064Y CN2164064Y CN 92235280 CN92235280U CN2164064Y CN 2164064 Y CN2164064 Y CN 2164064Y CN 92235280 CN92235280 CN 92235280 CN 92235280 U CN92235280 U CN 92235280U CN 2164064 Y CN2164064 Y CN 2164064Y
- Authority
- CN
- China
- Prior art keywords
- abacus
- rechoning
- utility
- model
- guide rail
- 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
- Instructional Devices (AREA)
Abstract
The utility model relates to a novel abacus. The utility model is characterized in that the body of the abacus is provided with a flat rail; flat abacus beads can slide on the flat rail; the body of the thin abacus can be folded through hinges on the body of the thin abacus; the utility model is convenient for carrying and especially suitable for pupils to use for learning abacus.
Description
The utility model relates to a kind of novel abacus.
The study rechoning by the abacus helps intelligence development, and rechoning by the abacus has become an important course of primary school mathematics.But the present employed abacus of student, the problem that ubiquity heaviness, inconvenience are carried.Even the abacus of one or two kinds of miniaturizations is arranged, the problem that still unresolved inconvenience is carried, and also rechoning by the abacus is very little, bad use.
The purpose of this utility model is to avoid above-mentioned shortcomings and deficiencies, and a kind of slim folding abacus is provided.
The utility model purpose is achieved in that and is provided with the flat guide rail on the abacus body, and rechoning by the abacus that can slide on guide rail is used for the hinge of Foldable abacus.
The utility model is owing to be provided with flat guide rail (2) on abacus body (1), non-circular rechoning by the abacus (3) is gone up at guide rail (2) by its underpart guide groove (5) and slided, and finishes the sub moving action of calculating of rechoning by the abacus.Can abacus is folding by the hinge (4) on abacus body (1), be easy to carry.Because of the flat rechoning by the abacus on this abacus circular beads operator different from the past slides on circular guideway by center rail, and it is not symmetrical up and down with guide groove, rechoning by the abacus is under thin situation, rechoning by the abacus is changeable, so can overcome rechoning by the abacus slimming in the past must cause rechoning by the abacus to reduce, the problem of bad use.Use the sub-top of rechoning by the abacus to can be made into rhombus in order to be more convenient for.
Accompanying drawing one is the abacus part sectioned view; Accompanying drawing two is the sub-sectional view of rechoning by the abacus.
Below in conjunction with accompanying drawing the utility model most preferred embodiment is described: be provided with flat guide rail (2) on abacus body (1), the reliable its underpart guide groove (5) of flat rechoning by the abacus (3) is gone up at guide rail (2) and is slided, and finishes the sub-computing action of rechoning by the abacus.Abacus not the time spent can fold up by hinge (4) on the abacus body, be easy to carry.
Claims (3)
1, a kind of novel abacus comprises abacus body (1), it is characterized in that: do not have guide rail (2), rechoning by the abacus (3), hinge (4) on the abacus body (1).
2,, it is characterized in that reliably its guide groove (5) slip on guide rail (2) of non-circular rechoning by the abacus (3) of abacus according to the described abacus of claim 1.
3, according to right 1 described abacus, it is folding to it is characterized in that abacus body (1) can pass through hinge (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92235280 CN2164064Y (en) | 1992-11-14 | 1992-11-14 | Abacus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92235280 CN2164064Y (en) | 1992-11-14 | 1992-11-14 | Abacus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2164064Y true CN2164064Y (en) | 1994-05-04 |
Family
ID=33777089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92235280 Expired - Fee Related CN2164064Y (en) | 1992-11-14 | 1992-11-14 | Abacus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2164064Y (en) |
-
1992
- 1992-11-14 CN CN 92235280 patent/CN2164064Y/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 |