JPH01123223U - - Google Patents
Info
- Publication number
- JPH01123223U JPH01123223U JP1852088U JP1852088U JPH01123223U JP H01123223 U JPH01123223 U JP H01123223U JP 1852088 U JP1852088 U JP 1852088U JP 1852088 U JP1852088 U JP 1852088U JP H01123223 U JPH01123223 U JP H01123223U
- Authority
- JP
- Japan
- Prior art keywords
- beads
- digit
- combination
- digits
- abacus
- 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.)
- Granted
Links
- 239000011324 bead Substances 0.000 claims description 13
- 230000003340 mental effect Effects 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 2
Landscapes
- Sheet Holders (AREA)
- Toys (AREA)
- Electrically Operated Instructional Devices (AREA)
Description
第１図は本考案の暗算練習用そろばんを示す斜
視図、第２図は同上増桁した場合の組立状態を示
す断面図、第３図は同上色彩を異ならせるように
した状態を示す平面図、第４図は一桁、二桁、三
桁と順次増桁した状態を示す平面図である。
１；暗算練習用そろばん、２；枠、３；桁棒、
４；梁、５；五珠、６；一珠、１０；増桁用孔、
１３；増桁用桁棒、１４；増桁用桁押さえ蓋、１
５；増桁用五珠、１６；増桁用一珠。
Fig. 1 is a perspective view showing the abacus for mental arithmetic practice of the present invention, Fig. 2 is a cross-sectional view showing the assembled condition when the same as above is added with digits, and Fig. 3 is a plan view showing the same as above in different colors. , FIG. 4 is a plan view showing the state in which the digits are increased in order of one digit, two digits, and three digits. 1; Abacus for mental arithmetic practice, 2; Frame, 3; Digit bar,
4; Beam, 5; Five bead, 6; One bead, 10; Hole for additional girder,
13; Girder rod for adding digits, 14; Girder holding lid for adding digits, 1
5; Five beads for adding digits, 16; One bead for adding digits.
Claims (1)
成る一桁の珠の組み合わせを有し、更にこれに一
桁以上の珠の組み合わせを増桁できるように構成
したことを特徴とする暗算練習用そろばん。 (2) 前記五珠と一珠とから成る一桁の珠の組み
合わせのうち、他の桁における同列の珠と共通さ
せて、各桁内で色彩を異ならせたことを特徴とす
る請求項１記載の暗算練習用そろばん。[Claims for Utility Model Registration] (1) It has a single-digit combination of beads consisting of one five beads and four or five single beads, and is further increased by a combination of one or more beads. An abacus for practicing mental arithmetic, which is characterized by its structure. (2) Claim 1 characterized in that among the combination of beads in one digit consisting of the five beads and one bead, the beads are made to be common to beads in the same row in other digits, and the colors are different within each digit. Abacus for practicing mental arithmetic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988018520U JPH0650025Y2 (en) | 1988-02-15 | 1988-02-15 | Abacus for mental arithmetic practice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988018520U JPH0650025Y2 (en) | 1988-02-15 | 1988-02-15 | Abacus for mental arithmetic practice |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01123223U true JPH01123223U (en) | 1989-08-22 |
| JPH0650025Y2 JPH0650025Y2 (en) | 1994-12-14 |
Family
ID=31233244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988018520U Expired - Lifetime JPH0650025Y2 (en) | 1988-02-15 | 1988-02-15 | Abacus for mental arithmetic practice |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0650025Y2 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4869092U (en) * | 1971-12-04 | 1973-09-01 | ||
| JPS4865998A (en) * | 1971-12-10 | 1973-09-10 | ||
| JPS5871833U (en) * | 1981-11-06 | 1983-05-16 | 金井 健 | Educational Nine Bead Abacus |
| JPS6232424U (en) * | 1985-04-01 | 1987-02-26 |
-
1988
- 1988-02-15 JP JP1988018520U patent/JPH0650025Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4869092U (en) * | 1971-12-04 | 1973-09-01 | ||
| JPS4865998A (en) * | 1971-12-10 | 1973-09-10 | ||
| JPS5871833U (en) * | 1981-11-06 | 1983-05-16 | 金井 健 | Educational Nine Bead Abacus |
| JPS6232424U (en) * | 1985-04-01 | 1987-02-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0650025Y2 (en) | 1994-12-14 |
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