JPH0488435U - - Google Patents
Info
- Publication number
- JPH0488435U JPH0488435U JP40321190U JP40321190U JPH0488435U JP H0488435 U JPH0488435 U JP H0488435U JP 40321190 U JP40321190 U JP 40321190U JP 40321190 U JP40321190 U JP 40321190U JP H0488435 U JPH0488435 U JP H0488435U
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- small
- rotor
- cylindrical portion
- coupling member
- 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.)
- Pending
Links
- 238000000465 moulding Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 229920001875 Ebonite Polymers 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 230000005294 ferromagnetic effect Effects 0.000 claims 1
- 230000005291 magnetic effect Effects 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
第１図及び第２図は本考案に成る回転子の２つ
の例の各断面図ａ、正面図ｂ、矢視断面図ｃ、第
３図及び第４図は従来技術に成る第１例の断面図
ａ及び正面図ｂと第２例の断面図、第５図及び第
８図は同該各例の各金型での成型状態を説明する
断面略図、第６図及び第９図は同各例の成形後の
回転子に働く潜在圧力の作用を説明する断面略図
、第７図及び第１０は同じく各例のクラツク発生
の様子を例示する正面図である。
符号の説明、１……円筒状永久磁石、１′……
（結合部材を同じ材料で一体成型される）円筒状
永久磁石部、２……結合部材、２―１……腕部、
２―２……小径円筒部、２―３……スリツト、２
―３１……スリツトの端面、３……軸、４―１…
…金型本体、４―２……金型蓋体、４―３……注
入口、４―４……キヤビテイ、４―５……パーテ
イングライン、５，５′……永久磁石（部）のク
ラツク、６……小径円筒部のクラツク。
1 and 2 are sectional views a, front view b, and arrow sectional view c of two examples of the rotor according to the present invention, and FIGS. 3 and 4 are sectional views of the first example according to the prior art. Cross-sectional view a and front view b, a cross-sectional view of the second example, FIGS. 5 and 8 are schematic cross-sectional views explaining the molding state in each mold of each example, and FIGS. 6 and 9 are the same. FIGS. 7 and 10 are schematic cross-sectional views illustrating the effect of latent pressure acting on the rotor after molding in each example, and front views illustrating how cracks occur in each example. Explanation of symbols, 1... Cylindrical permanent magnet, 1'...
Cylindrical permanent magnet part (the connecting member is integrally molded with the same material), 2...Connecting member, 2-1...Arm part,
2-2...Small diameter cylindrical part, 2-3...Slit, 2
-31... end face of slit, 3... shaft, 4-1...
...Mold body, 4-2...Mold lid, 4-3...Injection port, 4-4...Cavity, 4-5...Parting line, 5,5'...Permanent magnet (part) 6...Crack in the small diameter cylindrical part.
補正 平１．３．３０
図面の簡単な説明を次のように補正する。
明細書７頁９行目「第１０は」と記載してある
ところ「第１０図は」と補正する。Amendment 1.3.30 Hei 1. The brief description of the drawing is amended as follows. On page 7, line 9 of the specification, the statement ``No. 10 is'' has been corrected to ` `Fig. 10 is ''.
Claims (1)
と接合する小径円筒部と、該小径円筒部から放射
状に延伸する複数の腕部とを備えた結合部材で軸
と結合する構成の永久磁石式小型電動機の回転子
において、前記結合部材は、その小径円筒部に軸
方向のスリツトを形成したこと、を特徴とする永
久磁石式小型電動機の回転子。 (2) 円筒状永久磁石部材と結合部材とが、強磁
性体粉末と樹脂若しくは硬質ゴムのバインダーと
の混合物で一体成型により形成されていること、
を特徴とする実用新案登録請求の範囲第１項記載
の永久磁石式小型電動機の回転子。[Claims for Utility Model Registration] (1) A coupling member comprising a small-diameter cylindrical portion that connects a cylindrical permanent magnet member having magnetic poles to a shaft, and a plurality of arm portions extending radially from the small-diameter cylindrical portion. A rotor for a small permanent magnet electric motor configured to be coupled to a shaft at a rotor, wherein the coupling member has an axial slit formed in a small diameter cylindrical portion thereof. (2) The cylindrical permanent magnet member and the coupling member are formed by integral molding of a mixture of ferromagnetic powder and a resin or hard rubber binder;
A rotor for a permanent magnet type small electric motor according to claim 1 of the utility model registration claim, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40321190U JPH0488435U (en) | 1990-12-13 | 1990-12-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40321190U JPH0488435U (en) | 1990-12-13 | 1990-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0488435U true JPH0488435U (en) | 1992-07-31 |
Family
ID=31881021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP40321190U Pending JPH0488435U (en) | 1990-12-13 | 1990-12-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0488435U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100408303B1 (en) * | 2002-02-06 | 2003-12-03 | 삼성전자주식회사 | Paper feeding apparatus for printing device |
-
1990
- 1990-12-13 JP JP40321190U patent/JPH0488435U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100408303B1 (en) * | 2002-02-06 | 2003-12-03 | 삼성전자주식회사 | Paper feeding apparatus for printing device |
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