CN2199557Y - Abacus for calculation - Google Patents
Abacus for calculation Download PDFInfo
- Publication number
- CN2199557Y CN2199557Y CN 94237594 CN94237594U CN2199557Y CN 2199557 Y CN2199557 Y CN 2199557Y CN 94237594 CN94237594 CN 94237594 CN 94237594 U CN94237594 U CN 94237594U CN 2199557 Y CN2199557 Y CN 2199557Y
- Authority
- CN
- China
- Prior art keywords
- abacus
- bead
- calculation
- utility
- model
- 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
Images
Landscapes
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
The utility model relates to an abacus for calculation, comprising a frame, abacus beads, bead axles and fastening pieces. The utility model is characterized in that the abacus beads are semicircular or circular arc-shaped; the cross sections of the holes of the bead axles and the bead axles are also semicircular or circular arc-shaped; so, the utility model has the advantages of reduced thickness of the abacus, portability and making material-saving. When made into a folding abacus, the abacus for calculation is convenient for carrying in pupils' school bags.
Description
The utility model relates to a kind of Abacus for calculation.
It is circular that used Abacus for calculation, the cross section of its bead and pearl axle are tradition, so Abacus for calculation is thicker, carries inconvenience, the waste manufacturing materials.
The purpose of this utility model is an attenuate abacus thickness, makes it easy to carry, and saves manufacturing materials.
Abacus for calculation described in the utility model, it is made up of framework, bead, pearl axle and securing member, but its bead is semicircle or circular arc, the bead axis hole is semicircle, circular arc, ellipse, triangle or prismatic with the cross section that is mated the pearl axle that uses.The lower end of bead is higher than the lower surface of bead axis hole most, the minimum lower plane that is not less than framework.
The utility model is because diameter, bead axis hole and the pearl shaft section of bead change shape, and institute saves manufacturing materials again so that the abacus reduced thickness promptly is convenient to carry.If make collapsible abacus by my patented claim formerly is described, the pupil that then is more convenient for puts in the school bag and carries.
Below in conjunction with accompanying drawing the utility model is described in detail.
Accompanying drawing is the utility model synoptic diagram.
With reference to accompanying drawing, the utility model is made up of framework ［ 1 ］, bead ［ 2 ］, pearl axle ［ 3 ］ and securing member.In order to reach attenuate abacus thickness, be easy to carry and save the purpose of manufacturing materials, bead of the present utility model ［ 2 ］ is semicircle or circular arc, bead axis hole ［ 4 ］ and the cross section that is mated the pearl axle ［ 3 ］ of use can be semicircle or circular arc, can also be oval, triangle or prismatic.The highest lower surface ［ 6 ］ that must not be higher than bead axis hole ［ 4 ］, the lower end ［ 5 ］ of bead ［ 2 ］, the minimum lower plane ［ 7 ］ that must not be lower than framework ［ 1 ］.
The utility model can also one formerly the patent Shen be described makes collapsible abacus by me, and this pupil that is more convenient for puts in the school bag and carries.
Claims (2)
1, a kind of Abacus for calculation of being made up of framework [1], bead [2], pearl axle [3], securing member is characterized in that bead [2] for semicircle or circular arc, bead axis hole [4] and be mated pearl axle [3] cross section of using and be semicircle, circular arc, ellipse, triangle or prismatic.
2, Abacus for calculation according to claim 1 is characterized in that the lower end ［ 5 ］ of bead ［ 2 ］ is higher than the lower surface ［ 6 ］ of bead axis hole ［ 4 ］ most, is lower than the lower plane ［ 7 ］ of framework ［ 1 ］ most.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94237594 CN2199557Y (en) | 1994-06-20 | 1994-06-20 | Abacus for calculation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94237594 CN2199557Y (en) | 1994-06-20 | 1994-06-20 | Abacus for calculation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2199557Y true CN2199557Y (en) | 1995-05-31 |
Family
ID=33845241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94237594 Expired - Fee Related CN2199557Y (en) | 1994-06-20 | 1994-06-20 | Abacus for calculation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2199557Y (en) |
-
1994
- 1994-06-20 CN CN 94237594 patent/CN2199557Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2196945Y (en) | Portable folding stool | |
| CN2199557Y (en) | Abacus for calculation | |
| CN2330588Y (en) | Folding water tub | |
| CN2144631Y (en) | Handle for carrying Baote bottle | |
| CN2253132Y (en) | Carrying string bag | |
| CN2194134Y (en) | Spring chopsticks | |
| CN2218761Y (en) | Convenient coat hanger | |
| CN2199025Y (en) | Dual-purpose scissors | |
| CN2376830Y (en) | Combined hook | |
| CN2728279Y (en) | Multipurpose bag | |
| CN201506235U (en) | automobile sunshade | |
| CN2384494Y (en) | Bottleneck cover strap | |
| CN2332864Y (en) | Combined flue pipe | |
| CN2222481Y (en) | Portable pillow for travel | |
| CN2176324Y (en) | Multifunctional folding bucket | |
| CN2322450Y (en) | Stationery case with abacus | |
| CN2270237Y (en) | Inflatable telescope | |
| CN2131375Y (en) | Folding stool | |
| CN2210158Y (en) | Collapsible travelling pail | |
| CN202481219U (en) | Quick detachment handle used on folding frame | |
| CN2178065Y (en) | health magnetic water bottle | |
| CN2176771Y (en) | Anti-slip folding structure of drip bottle | |
| CN2514771Y (en) | Basin with retractable holder | |
| CN2188033Y (en) | Cheque appliance | |
| CN2625250Y (en) | School bag carrier |
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 |