JPH0323177Y2 - - Google Patents
Info
- Publication number
- JPH0323177Y2 JPH0323177Y2 JP1985121801U JP12180185U JPH0323177Y2 JP H0323177 Y2 JPH0323177 Y2 JP H0323177Y2 JP 1985121801 U JP1985121801 U JP 1985121801U JP 12180185 U JP12180185 U JP 12180185U JP H0323177 Y2 JPH0323177 Y2 JP H0323177Y2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- blade
- shaft hole
- wing
- boss
- 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
Links
- 238000005406 washing Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Description
【考案の詳細な説明】
(イ) 産業上の利用分野
本考案は、低速で頻繁に間欠反転する回転翼を
備えた洗濯機に関する。[Detailed description of the invention] (a) Industrial application field The present invention relates to a washing machine equipped with rotary blades that rotate intermittently at low speed.
(ロ) 従来の技術
特公昭52−6550号公報（特に第１図）で示すよ
うに、回転翼には翼ボスがインサートされ、その
軸穴に翼軸が挿着される。軸穴と翼軸の形状は通
常Ｄ形、小判形にしてあり、軸穴の下端面と翼軸
の大径部間にワツシヤを介挿し、軸穴の上端側か
らボスと軸をネジ止めしている。(b) Prior Art As shown in Japanese Patent Publication No. 52-6550 (particularly Fig. 1), a blade boss is inserted into a rotary blade, and a blade shaft is inserted into the shaft hole of the blade boss. The shape of the shaft hole and blade shaft is usually D-shaped or oval.A washer is inserted between the lower end of the shaft hole and the large diameter part of the blade shaft, and the boss and shaft are screwed together from the upper end of the shaft hole. ing.
しかし、最近の洗濯機にあつては、布傷みを減
少させるために回転翼を低速で頻繁に間欠反転す
る。従つて、回転トルクが大きくなり、従来構造
では軸穴と翼軸の連結保持力が得られなくなつて
きている。 However, in modern washing machines, the rotor blades are rotated intermittently at low speeds to reduce fabric damage. Therefore, the rotational torque becomes large, and the conventional structure is no longer able to maintain the connection between the shaft hole and the blade shaft.
そこで、第３図及び第４図で示すように翼ボス
４０の軸穴４１の内面及び翼軸３０の外周面をイ
ンボリユートセレーシヨンによつて連結し、所定
の連結保持力を得るようにしている。 Therefore, as shown in FIGS. 3 and 4, the inner surface of the shaft hole 41 of the wing boss 40 and the outer peripheral surface of the wing shaft 30 are connected by involute serrations to obtain a predetermined connection holding force. ing.
しかし、インボリユートセレーシヨンの場合、
軸穴４１の内径と翼軸３０の外径との間に所定の
クリアランスを要し、例えば内径をψ11.9、外径
をψ11.5とすれば0.4mmのクリアランスが生じる。
一方、ワツシヤ３１を受止める大径部３２の外径
は通常の設計ではψ12.5程度であり、翼軸３０を
最終的にネジ止めする際に、ψ11.9の軸穴４１の
始端面（下端面）４２がワツシヤ３１に有効に力
を加えることが難しかつた。この結果、クリアラ
ンスに伴なう翼軸３０と軸穴４１との芯振れが発
生しやすくなつた。特に、回転翼を大径化する
と、芯振れが大きくなつた。 However, in the case of involute serration,
A predetermined clearance is required between the inner diameter of the shaft hole 41 and the outer diameter of the blade shaft 30. For example, if the inner diameter is ψ11.9 and the outer diameter is ψ11.5, a clearance of 0.4 mm is generated.
On the other hand, the outer diameter of the large diameter portion 32 that receives the washer 31 is approximately ψ12.5 in a normal design, and when the blade shaft 30 is finally screwed, the starting end surface of the shaft hole 41 with a diameter of ψ11.9 ( It was difficult for the lower end surface 42 to effectively apply force to the washer 31. As a result, misalignment between the blade shaft 30 and the shaft hole 41 due to clearance is likely to occur. In particular, when the diameter of the rotor blade was increased, the center runout increased.
(ハ) 考案が解決しようとする問題点
本考案は、芯振れの発生を抑制せんとするもの
である。(c) Problems to be solved by the invention The invention aims to suppress the occurrence of center runout.
(ニ) 問題点を解決するための手段
本考案は、軸穴の始端内面に突条を一体形成
し、軸穴内に圧入された翼軸のストレート部に上
記突条を圧接することにより、問題点を解決す
る。(d) Means for solving the problem The present invention solves the problem by integrally forming a protrusion on the inner surface of the starting end of the shaft hole, and pressing the protrusion against the straight part of the blade shaft press-fitted into the shaft hole. Solve the points.
(ホ) 作用
即ち、突条がワツシヤ近傍の翼軸を周囲から押
えてクリアランスを消去する作用を成し、またワ
ツシヤに対しては有効押圧面積を増加させる作用
を成す。この結果、翼軸と軸穴（翼ボス）とが芯
振れ少く結合される。(E) Effect: In other words, the protrusions press the blade shaft near the washer from the surroundings to eliminate clearance, and also serve to increase the effective pressing area for the washer. As a result, the blade shaft and the shaft hole (blade boss) are connected with less center runout.
(ヘ) 実施例
翼軸については従来例と同一であることから第
３図を引用し、以下第１図〜第３図に基づいて説
明する。(F) Embodiment Since the blade axis is the same as that of the conventional example, FIG. 3 will be cited and the following description will be made based on FIGS. 1 to 3.
１は回転翼（図示せず）に埋設（インサート）
された翼ボスで、ψ11.9の軸穴２を上下方向に形
成し、軸穴上部には止着用のネジ穴３を連通形成
し、軸穴２の始端部（下端部）の内面を除く部分
にはインボリユートセレーシヨンを構成する内歯
４…を突出形成している。５…は始端部内面に突
出形成された突条で、成形金型を容易にするため
に各内歯４…と対応して位置し、且つ内歯４…よ
り突出度合は小さく、例えば突端により構成され
る内径Ａをψ11.5か、それより僅かに大きくして
いる。 1 is buried (insert) in the rotor blade (not shown)
In the wing boss, a shaft hole 2 of ψ11.9 is formed in the vertical direction, and a screw hole 3 for fixing is formed in communication with the upper part of the shaft hole, excluding the inner surface of the starting end (lower end) of the shaft hole 2. Internal teeth 4 constituting an involute serration are formed protruding from the portion. 5... is a protrusion formed protrudingly on the inner surface of the starting end, and is located corresponding to each internal tooth 4... in order to facilitate the molding, and the degree of protrusion is smaller than that of the internal tooth 4..., for example, by the protruding end. The inner diameter A is ψ11.5 or slightly larger.
一方、翼軸３０は、インボリユートセレーシヨ
ンを構成する外径ψ11.5の外歯３３…と、同径の
ストレート部３４と外径ψ12.5の大径部３２から
成り、予めストレート部３４と大径部３２間の段
部にワツシヤ３１を挿着して止めている。 On the other hand, the wing shaft 30 consists of external teeth 33 with an outer diameter ψ11.5 constituting an involute serration, a straight part 34 with the same diameter, and a large diameter part 32 with an outer diameter ψ12.5. A washer 31 is inserted and fixed in the stepped portion between the large diameter portion 34 and the large diameter portion 32.
かくして、翼軸３０は軸穴２内に始端部から圧
入される。すると、内歯４…及び外歯３３…はイ
ンボリユートセレーシヨンを構成して軸穴２と翼
軸３０を連結する。そして、突条５…はストレー
ト部３４の外周面に圧接する。翼ボス１に於ける
軸穴２の始端面６はワツシヤ３１に圧接するが、
この面６の有効面積は突条５により増加されてお
り、ワツシヤ３１に対して確実に作用する。 In this way, the blade shaft 30 is press-fitted into the shaft hole 2 from the starting end. Then, the internal teeth 4 and the external teeth 33 form an involute serration to connect the shaft hole 2 and the blade shaft 30. The protrusions 5 are pressed against the outer circumferential surface of the straight portion 34. The starting end surface 6 of the shaft hole 2 in the wing boss 1 comes into pressure contact with the washer 31,
The effective area of this surface 6 is increased by the ridges 5 and acts reliably on the washer 31.
そして、圧入後にネジ穴３を介して翼軸３０を
翼ボス１に固着する。尚、翼軸３０の頂部にはネ
ジ孔がタツプしてある。 After press-fitting, the blade shaft 30 is fixed to the blade boss 1 via the screw hole 3. Incidentally, a screw hole is tapped at the top of the wing shaft 30.
(ト) 考案の効果
本考案に依れば、簡単な構成で芯振れの発生が
ほとんど無くなり、回転翼による洗濯作業を確実
に実行させることができ、芯振れによる騒音や故
障の少い洗濯機を提供できるものである。(g) Effects of the invention According to the invention, the occurrence of core runout is almost eliminated with a simple configuration, the washing work can be reliably performed by the rotary blade, and there is less noise and breakdown caused by core runout, and a washing machine is created. It is possible to provide
第１図は本考案による洗濯機の要部（翼ボス）
の側断面図、第２図は第１図Ａ−Ａ線に基づく拡
大断面図、第３図は要部（翼軸）の側面図、第４
図は従来例の要部（翼ボス）の側断面図である。
１……翼ボス、２……軸穴、４……内歯、５…
…突条、６……始端面、３０……翼軸、３１……
ワツシヤ、３２……大径部、３３……外歯、３４
……ストレート部。
Figure 1 shows the main parts of the washing machine according to the present invention (wing boss)
2 is an enlarged sectional view based on line A-A in Figure 1, Figure 3 is a side view of the main part (wing axis), Figure 4 is a side sectional view of
The figure is a side sectional view of the main part (blade boss) of a conventional example. 1... Wing boss, 2... Shaft hole, 4... Internal teeth, 5...
...Protrusion, 6... Starting end surface, 30... Wing axis, 31...
Washer, 32...Large diameter portion, 33...External tooth, 34
...Straight section.
Claims (1)
ンボリユートセレーシヨンによつて連結し、上記
軸穴の始端面と翼軸の大径部間にワツシヤを介挿
すると共に、軸穴終端側から翼ボスと翼軸とをネ
ジ止めしたものに於いて、上記軸穴の始端内面に
突条を一体形成し、軸穴内に圧入された翼軸のス
トレート部に上記突条を圧接したことを特徴とす
る洗濯機。 The shaft hole of the blade boss buried in the rotor blade and the blade shaft are connected by an involute serration, and a washer is inserted between the starting end surface of the shaft hole and the large diameter part of the blade shaft, and the shaft When the wing boss and the wing shaft are screwed together from the end of the hole, a protrusion is integrally formed on the inner surface of the starting end of the shaft hole, and the protrusion is pressed against the straight part of the wing shaft press-fitted into the shaft hole. A washing machine characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985121801U JPH0323177Y2 (en) | 1985-08-08 | 1985-08-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985121801U JPH0323177Y2 (en) | 1985-08-08 | 1985-08-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6230782U JPS6230782U (en) | 1987-02-24 |
| JPH0323177Y2 true JPH0323177Y2 (en) | 1991-05-21 |
Family
ID=31011405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985121801U Expired JPH0323177Y2 (en) | 1985-08-08 | 1985-08-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0323177Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59105481U (en) * | 1982-12-29 | 1984-07-16 | 株式会社東芝 | washing machine |
-
1985
- 1985-08-08 JP JP1985121801U patent/JPH0323177Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6230782U (en) | 1987-02-24 |
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