JPH09225176A - Inner tank for washing machine and manufacture therefor - Google Patents
Inner tank for washing machine and manufacture thereforInfo
- Publication number
- JPH09225176A JPH09225176A JP8036118A JP3611896A JPH09225176A JP H09225176 A JPH09225176 A JP H09225176A JP 8036118 A JP8036118 A JP 8036118A JP 3611896 A JP3611896 A JP 3611896A JP H09225176 A JPH09225176 A JP H09225176A
- Authority
- JP
- Japan
- Prior art keywords
- holes
- plate material
- parts
- body portion
- forming
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、洗濯機の内槽の
構造および該内槽の製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an inner tub of a washing machine and a method of manufacturing the inner tub.
【０００２】[0002]
【従来の技術】図８には、従来の全自動洗濯機の内槽の
一例が示されている。図８を参照して、内槽１は、胴部
３と、底部４とを備える。胴部３の上端には、ねじ７に
よってバランスリング２が取付けられ、胴部３の下端に
はねじ７によって底部４が取付けられる。胴部３は、た
とえばステンレス鋼などの金属からなり、円筒形状を有
する。また、胴部３は、たとえばシーム溶接によって接
合された溶接部１５を有する。2. Description of the Related Art FIG. 8 shows an example of an inner tub of a conventional fully automatic washing machine. With reference to FIG. 8, the inner tank 1 includes a body portion 3 and a bottom portion 4. The balance ring 2 is attached to the upper end of the body 3 with a screw 7, and the bottom 4 is attached to the lower end of the body 3 with a screw 7. The body 3 is made of metal such as stainless steel and has a cylindrical shape. Moreover, the trunk | drum 3 has the welding part 15 joined by the seam welding, for example.
【０００３】次に、図１０を用いて、図８に示される内
槽１の製造方法について説明する。まず図１０（ａ）に
示されるように、金属製の板材１２に穴抜加工，バーリ
ング加工などを施した後切断する。次に、図１０（ｂ）
に示されるように、所定の長さに切断された板材１２に
ロール加工を施し円筒状に成形する。Next, a method of manufacturing the inner tank 1 shown in FIG. 8 will be described with reference to FIG. First, as shown in FIG. 10A, the metal plate 12 is subjected to punching, burring, etc., and then cut. Next, FIG.
As shown in, the plate material 12 cut into a predetermined length is roll-processed to be formed into a cylindrical shape.
【０００４】次に、図１０（ｃ）に示されるように、シ
ーム溶接法を用いて、板材１２の両端部を接合する。そ
れにより、溶接部１５が形成される。次に、図１０
（ｄ）に示されるように、エンボス加工および縦ビーデ
ィング加工を施す。Next, as shown in FIG. 10 (c), both ends of the plate member 12 are joined by using a seam welding method. Thereby, the welded portion 15 is formed. Next, FIG.
As shown in (d), embossing and vertical beading are performed.
【０００５】次に、図１０（ｅ）に示されるように、胴
部３にビーディング加工を施すことにより、円周方向に
ビーディング部１１ａ，１１ｂを形成する。それによ
り、胴部３が形成されることとなる。Next, as shown in FIG. 10 (e), the body portion 3 is subjected to beading to form beading portions 11a and 11b in the circumferential direction. As a result, the body portion 3 is formed.
【０００６】次に、図１０（ｆ）に示されるように、上
記の胴部３の下端部に、底部４をねじ止めする。その
後、図１０（ｇ）に示されるように、胴部３の下端にカ
ーリング加工を施すことにより、カーリング部１０ｂを
形成する。次に、図１０（ｈ）に示されるように、胴部
３の上端部にバランスリング２をねじ止めする。以上の
工程を経て図８に示される内槽１が形成される。Next, as shown in FIG. 10 (f), the bottom portion 4 is screwed to the lower end portion of the body portion 3 described above. Then, as shown in FIG. 10G, the curling portion 10b is formed by curling the lower end of the body portion 3. Next, as shown in FIG. 10 (h), the balance ring 2 is screwed to the upper end of the body 3. Through the above steps, the inner tank 1 shown in FIG. 8 is formed.
【０００７】[0007]
【発明が解決しようとする課題】上記のように、従来の
内槽１の製造過程では、胴部３の成形に際しシーム溶接
を行なっていたため、次のような問題点があった。すな
わち、シーム溶接の際には板材１２の端面の密着精度が
要求されそのための品質管理が困難であり不良品が発生
しやすくなるという問題、シーム溶接には時間がかかり
生産性が低下するという問題などが生じていた。As described above, in the conventional manufacturing process of the inner tank 1, seam welding is performed when forming the body portion 3, so that the following problems occur. That is, during seam welding, the accuracy of contact between the end faces of the plate material 12 is required, and therefore quality control is difficult and defective products are likely to occur, and seam welding takes time and reduces productivity. And so on.
【０００８】そこで、上記のようなシーム溶接に代え
て、図１０に示される板材１２の端部を単純にかしめる
（巻き締める）という手法を採用することも考えられ
る。この場合の胴部３の上端部の一部が図９に示されて
いる。Therefore, instead of the seam welding as described above, it is conceivable to employ a method of simply crimping (winding) the end portion of the plate material 12 shown in FIG. A part of the upper end of the body 3 in this case is shown in FIG.
【０００９】しかしながら、この場合には、図９に示さ
れるかしめ部５ａの上端部５ａ′がフリーとなっている
ため、脱水時の遠心力によってこの部分から胴部３が開
く可能性が高くなる。その結果、内槽１が破壊するとい
う問題が懸念される。したがって、単純に板材１２の端
部をかしめるという上記のような手法は使用できない。However, in this case, since the upper end portion 5a 'of the caulking portion 5a shown in FIG. 9 is free, the possibility that the trunk portion 3 will open from this portion due to centrifugal force during dehydration increases. . As a result, there is a concern that the inner tank 1 will be destroyed. Therefore, the above method of simply caulking the end of the plate member 12 cannot be used.
【００１０】以上のことより、従来では、胴部３の成形
に際しシーム溶接を使用する必要があり、そのため上述
のような問題が生じていた。From the above, in the past, it was necessary to use seam welding when forming the body portion 3, and therefore the above-mentioned problems occurred.
【００１１】この発明は、上記のような課題を解決する
ためになされたものである。この発明の目的は、不良品
の発生が少なく、かつ生産性をも向上させることが可能
となる洗濯機の内槽およびその製造方法を提供すること
にある。The present invention has been made to solve the above problems. An object of the present invention is to provide an inner tub of a washing machine and a method of manufacturing the same, in which the number of defective products is small and the productivity can be improved.
【００１２】[0012]
【課題を解決するための手段】この発明に係る洗濯機の
内槽は、胴部と、底部とを備える。胴部は、金属製の板
材を円筒状に成形することにより形成される。底部は、
胴部の下端に取付けられる。そして、胴部の上下端近傍
には、板材の端部が重ね合わされかつその重ね合わされ
た部分を貫通するように第１と第２の貫通穴がそれぞれ
設けられた第１と第２の重ね合わせ部が設けられる。ま
た、この第１と第２の重ね合わせ部の間には、板材の両
端が互いに係合した状態でかしめられることにより形成
されるかしめ部が設けられる。An inner tub of a washing machine according to the present invention includes a body portion and a bottom portion. The body is formed by forming a metal plate into a cylindrical shape. The bottom is
It is attached to the lower end of the body. Then, in the vicinity of the upper and lower ends of the body portion, first and second superposed layers are provided in which first and second through holes are provided so that the end portions of the plate materials are superposed and penetrate the superposed portions. Sections are provided. Further, between the first and second overlapping portions, a crimp portion formed by crimping both ends of the plate material in a state of being engaged with each other is provided.
【００１３】上記のように、本発明に係る洗濯機の内槽
の胴部には、第１と第２の貫通穴を有する重ね合わせ部
が設けられる。この重ね合わせ部に設けられる第１と第
２の貫通穴に、たとえばねじを螺着することにより、胴
部の上下にバランスリングと底部とがそれぞれ取付けら
れる。このように、ねじを螺着することにより、胴部が
その上下端から開くことを効果的に阻止することが可能
となる。それにより、内槽の破壊を効果的に阻止するこ
とが可能となる。また、重ね合わせ部とかしめ部とを設
けることにより胴部の形状を保持できるので、シーム溶
接を行なう必要がなくなる。それにより、作業も容易と
なり、かつ作業時間をも短縮することが可能となる。そ
の結果、生産性を向上させることが可能となる。As described above, the body portion of the inner tub of the washing machine according to the present invention is provided with the overlapping portion having the first and second through holes. By screwing, for example, screws into the first and second through holes provided in the overlapping portion, the balance ring and the bottom portion are attached above and below the body portion, respectively. As described above, by screwing the screw, it is possible to effectively prevent the body portion from opening from the upper and lower ends thereof. Thereby, it becomes possible to effectively prevent the destruction of the inner tank. Further, since the shape of the body can be maintained by providing the overlapping portion and the caulking portion, it is not necessary to perform seam welding. As a result, the work becomes easy and the work time can be shortened. As a result, it is possible to improve productivity.
【００１４】この発明に係る洗濯機の内槽の製造方法に
よれば、まず、金属製の板材の一方端における１対のコ
ーナ部近傍に第１と第２の貫通穴をそれぞれ形成し、板
材の他方端における１対のコーナ部近傍に第３と第４の
貫通穴をそれぞれ形成する。また、上記第１〜第４の貫
通穴の形成工程と同一工程あるいは別工程で、第１と第
２の貫通穴間に位置する板材の一方端に第１と第２の切
欠部を間隔をあけて形成し、第３と第４の貫通穴間に位
置する板材の他方端に第３と第４の切欠部を間隔をあけ
て形成する。そして、第１と第２の切欠部間に位置する
板材の一方端と第３と第４の切欠部間に位置する板材の
他方端とを互いに係合させた状態でかしめる（巻き締め
る）とともに第１と第２の貫通穴を第３と第４の貫通穴
上にそれぞれ配置することにより、板材を円筒状に成形
する。According to the method for manufacturing the inner tub of the washing machine according to the present invention, first, the first and second through holes are formed in the vicinity of the pair of corner portions at one end of the metal plate material, and the plate material is formed. Third and fourth through holes are formed in the vicinity of the pair of corner portions at the other end. In addition, in the same process as the above-described first to fourth through-hole forming processes or in a different process, the first and second cutouts are provided at one end of the plate member located between the first and second through-holes. The third and fourth notches are formed at the other end of the plate member located between the third and fourth through holes with a space provided therebetween. Then, the one end of the plate member located between the first and second cutouts and the other end of the plate member located between the third and fourth cutouts are caulked (tightened) in a state of being engaged with each other. At the same time, the plate material is formed into a cylindrical shape by disposing the first and second through holes on the third and fourth through holes, respectively.
【００１５】上記のように、本発明に係る洗濯機の内槽
の製造方法によれば、第１と第２の貫通穴間に第１と第
２の切欠部を形成し、第３と第４の貫通穴間に第３と第
４の切欠部を形成している。それにより、第１と第２の
切欠部間に位置する板材の一方端と、第３と第４の切欠
部間に位置する板材の他方端とを互いに折り曲げてかし
める（巻き締める）ことにより、同時に、第１と第２の
貫通穴を第３と第４の貫通穴上に配置することが可能と
なる。それにより、板材を円筒状に成形することが可能
となる。As described above, according to the method of manufacturing the inner tub of the washing machine of the present invention, the first and second notches are formed between the first and second through holes, and the third and third notches are formed. Third and fourth cutouts are formed between the four through holes. As a result, one end of the plate member located between the first and second cutouts and the other end of the plate member located between the third and fourth cutouts are bent and crimped (tightened). At the same time, the first and second through holes can be arranged on the third and fourth through holes. Thereby, the plate material can be formed into a cylindrical shape.
【００１６】[0016]
【発明の実施の形態】以下、図１〜図７を用いて、この
発明の１つの実施の形態における洗濯機の内槽について
説明する。図１は、本発明の１つの実施の形態における
洗濯機の内槽１を示す斜視図である。BEST MODE FOR CARRYING OUT THE INVENTION An inner tub of a washing machine according to an embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view showing an inner tub 1 of a washing machine according to an embodiment of the present invention.
【００１７】図１を参照して、内槽１の胴部３には、重
ね合わせ部６ａ，６ｂと、かしめ部５とが設けられる。
重ね合わせ部６ａ，６ｂは、胴部３を構成する金属製の
板材の両端部が重ね合わされることによって形成される
部分であり、この重ね合わせ部６ａ，６ｂには重ね合わ
された板材の双方を貫通する貫通穴が設けられる。そし
て、この貫通穴にねじ７が螺着される。それ以外の構造
に関しては、図８に示される従来の内槽１とほぼ同様で
ある。Referring to FIG. 1, body portion 3 of inner tank 1 is provided with overlapping portions 6a and 6b and caulking portion 5.
The overlapping portions 6a and 6b are portions formed by overlapping both ends of the metal plate materials that form the body portion 3, and the overlapping plate portions 6a and 6b have both of the overlapping plate materials. A through hole is provided therethrough. Then, the screw 7 is screwed into the through hole. Other structures are almost the same as those of the conventional inner tank 1 shown in FIG.
【００１８】次に、図３を用いて、図１に示される領域
８内の構造についてより詳しく説明する。図３は、この
領域８内に位置する胴部３の上端部を拡大した図であ
る。Next, the structure in the region 8 shown in FIG. 1 will be described in more detail with reference to FIG. FIG. 3 is an enlarged view of the upper end portion of the body portion 3 located in the area 8.
【００１９】図３を参照して、重ね合わせ部６ａを貫通
するように貫通穴１３が設けられ、この貫通穴１３にね
じ７が螺着される。そして、重ね合わせ部６ａの下方に
は、かしめ部５が延在している。このかしめ部５は、胴
部３を構成する金属製の板材の両端部を折り曲げて係合
させ、この状態でかしめる（巻き締める）ことにより形
成される部分である。Referring to FIG. 3, a through hole 13 is provided so as to penetrate through the overlapping portion 6a, and a screw 7 is screwed into the through hole 13. The caulking portion 5 extends below the overlapping portion 6a. The caulking portion 5 is a portion formed by bending and engaging both ends of a metal plate material forming the body portion 3 and caulking (winding) in this state.
【００２０】次に、図２を用いて、図１に示される内槽
１の断面構造について説明する。図２を参照して、胴部
３の上端には、ねじ７によってバランスリング２が取付
けられる。そして、胴部３の上端部には、カーリング部
１０ａが形成される。また、ねじ７の下方には、ビーデ
ィング部１１ａが形成される。Next, the sectional structure of the inner tank 1 shown in FIG. 1 will be described with reference to FIG. With reference to FIG. 2, the balance ring 2 is attached to the upper end of the body portion 3 with a screw 7. A curling portion 10a is formed on the upper end portion of the body portion 3. A beading portion 11 a is formed below the screw 7.
【００２１】一方、胴部３の底部には、たとえば樹脂か
らなる底部４が取付けられる。この底部４は、ねじ７に
よって胴部３に取付けられる。底部４の近傍にもビーデ
ィング部１１ｂが形成され、胴部３の下端にはカーリン
グ部１０ｂが形成される。On the other hand, a bottom portion 4 made of, for example, resin is attached to the bottom portion of the body portion 3. The bottom 4 is attached to the body 3 by means of screws 7. A beading portion 11b is also formed near the bottom portion 4, and a curling portion 10b is formed at the lower end of the body portion 3.
【００２２】次に、図４を用いて、図２における領域９
内の構造についてより詳しく説明する。図４を参照し
て、ビーディング部１１ａは、ねじ７の直下を横切るよ
うに形成され、カーリング部１０ａは、ねじ７の直上を
横切るように形成される。Next, referring to FIG. 4, the area 9 in FIG.
The internal structure will be described in more detail. With reference to FIG. 4, beading portion 11 a is formed so as to traverse directly below screw 7, and curling portion 10 a is formed so as to traverse immediately above screw 7.
【００２３】次に、図５〜図７を用いて、図１に示され
る内槽１の製造方法について説明する。Next, a method of manufacturing the inner tank 1 shown in FIG. 1 will be described with reference to FIGS.
【００２４】まず図５（ａ）に示されるように、金属製
の板材１２に穴抜加工，バーリング加工を施す。そし
て、さらに、板材１２に、エンボス加工および縦ビーデ
ィング加工をも施し、所定の長さに切断する。First, as shown in FIG. 5A, the metal plate 12 is subjected to punching and burring. Then, the plate material 12 is also subjected to embossing processing and vertical beading processing and cut into a predetermined length.
【００２５】次に、図５（ｂ）に示されるように、板材
１２にロール加工を施す。その後、図５（ｃ）に示され
るように、板材１２の両端部を係合させた状態でかしめ
ることによりかしめ部５を形成する。ここで、このかし
め部５の形成工程について、図６および図７を用いてよ
り詳しく説明する。図６は、かしめ部５の形成前の板材
１２の両端部近傍を示す平面図である。Next, as shown in FIG. 5B, the plate material 12 is rolled. Then, as shown in FIG. 5C, the caulking portion 5 is formed by caulking both ends of the plate material 12 in an engaged state. Here, the step of forming the caulked portion 5 will be described in more detail with reference to FIGS. 6 and 7. FIG. 6 is a plan view showing the vicinity of both end portions of the plate material 12 before forming the crimped portion 5.
【００２６】図６を参照して、板材１２の一方端１２ａ
のコーナ部近傍には、貫通穴１３ａ，１３ｂがそれぞれ
形成される。そして、この貫通穴１３ａ，１３ｂ間に位
置する一方端１２ａには、切欠部１４ａ，１４ｂがそれ
ぞれ間隔をあけて形成される。板材１２の他方端１２ｂ
にも、一方端１２ａの場合と同様に、１対の貫通穴１３
ｃ，１３ｄと、１対の切欠部１４ｃ，１４ｄがそれぞれ
形成される。Referring to FIG. 6, one end 12a of the plate member 12
Through holes 13a and 13b are formed in the vicinity of the corners of the above. Then, notches 14a and 14b are formed at intervals at one end 12a located between the through holes 13a and 13b. The other end 12b of the plate material 12
Also, as in the case of the one end 12a, the pair of through holes 13
c, 13d and a pair of notches 14c, 14d are formed, respectively.
【００２７】このように切欠部１４ａ〜１４ｄを形成す
ることにより、切欠部１４ａと切欠部１４ｂとに挟まれ
る一方端１２ａの一部と、切欠部１４ｃと切欠部１４ｄ
とによって挟まれる他方端１２ｂの一部とを互いに係合
させるように折り曲げた後かしめる（巻き締める）こと
が可能となる。それにより、かしめ部５を形成すること
が可能となる。By forming the cutouts 14a to 14d in this manner, a part of the one end 12a sandwiched between the cutouts 14a and 14b, and the cutouts 14c and 14d.
It is possible to fold and crimp (tighten) a part of the other end 12b sandwiched by and so as to engage with each other. Thereby, the crimped portion 5 can be formed.
【００２８】このとき、かしめ部５を形成するに際し、
貫通穴１３ａと貫通穴１３ｃとが重なり、貫通穴１３ｂ
と貫通穴１３ｄとが重なるように板材１２の一方端１２
ａと他方端１２ｂとが重ね合わされる。それにより、図
７（ａ）に示されるように、かしめ部５が形成されると
ともに、重ね合わせ部６ａ，６ｂをそれぞれ形成するこ
とが可能となる。At this time, when forming the caulking portion 5,
The through hole 13a and the through hole 13c overlap each other, and the through hole 13b
One end 12 of the plate member 12 such that the through hole 13d and the through hole 13d overlap each other.
a and the other end 12b are overlapped. As a result, as shown in FIG. 7A, the caulking portion 5 is formed, and the overlapping portions 6a and 6b can be formed respectively.
【００２９】なお、図７（ａ）に示される場合では、図
６における他方端１２ｂが一方端１２ａ上に重ねられて
いる。また、図７（ａ）におけるＶＩＩｂ−ＶＩＩｂ線
に沿う断面が図７（ｂ）に示され、図７（ａ）における
ＶＩＩｃ−ＶＩＩｃ線に沿う断面が図７（ｃ）に示され
ている。また、上記の貫通穴１３ａ〜１３ｄと、切欠部
１４ａ〜１４ｄは、図５（ａ）に示される工程で形成さ
れる。In the case shown in FIG. 7A, the other end 12b in FIG. 6 is superposed on the one end 12a. A cross section taken along line VIIb-VIIb in FIG. 7A is shown in FIG. 7B, and a cross section taken along line VIIc-VIIc in FIG. 7A is shown in FIG. 7C. Further, the through holes 13a to 13d and the cutouts 14a to 14d are formed in the process shown in FIG.
【００３０】上記のようにしてかしめ部５および重ね合
わせ部６ａ，６ｂを形成した後、胴部３にビーディング
加工を施す。それにより、図５（ｄ）に示されるよう
に、ビーディング部１１ａ，１１ｂがそれぞれ形成され
る。After forming the caulking portion 5 and the overlapping portions 6a and 6b as described above, the body portion 3 is subjected to beading. As a result, as shown in FIG. 5D, the beading portions 11a and 11b are formed.
【００３１】次に、図５（ｅ）に示されるように、ねじ
７によって、胴部３の上端にバランスリング２を取付
け、胴部３の下端に底部４を取付ける。このとき、重ね
合わせ部６ａ，６ｂを貫通するように設けられた貫通穴
内にもねじ７が螺着される。このように、重ね合わせ部
６ａ，６ｂにねじ７が螺着されることにより、バランス
リング２と底部４とを胴部３に取付けることができると
ともに、胴部３がその上下端のいずれかから開くという
現象の発生をも効果的に阻止することが可能となる。Next, as shown in FIG. 5 (e), the balance ring 2 is attached to the upper end of the body 3 and the bottom 4 is attached to the lower end of the body 3 with screws 7. At this time, the screw 7 is also screwed into the through hole provided so as to penetrate the overlapping portions 6a and 6b. In this way, by screwing the screws 7 to the overlapping portions 6a and 6b, the balance ring 2 and the bottom portion 4 can be attached to the body portion 3, and the body portion 3 can be attached from any one of the upper and lower ends thereof. It is also possible to effectively prevent the phenomenon of opening.
【００３２】次に、図５（ｆ）に示されるように、胴部
３の上下端にカーリング加工（縁丸め加工）を施す。そ
れにより、カーリング部１０ａ，１０ｂがそれぞれ形成
される。以上の工程を経て、図１および図２に示される
内槽１が形成されることとなる。Next, as shown in FIG. 5 (f), the upper and lower ends of the body 3 are subjected to curling (rounding). Thereby, the curling parts 10a and 10b are formed, respectively. Through the above steps, the inner tank 1 shown in FIGS. 1 and 2 is formed.
【００３３】以上のように本発明の実施の形態について
説明を行なったが、今回開示された実施の形態はすべて
の点で例示であって制限的なものではないと考えられる
べきである。本発明の範囲は特許請求の範囲によって示
され、特許請求の範囲と均等の意味および範囲内でのす
べての変更が含まれることが意図される。Although the embodiments of the present invention have been described above, it should be considered that the embodiments disclosed this time are exemplifications in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
【図１】この発明の１つの実施の形態における洗濯機の
内槽を示す斜視図である。FIG. 1 is a perspective view showing an inner tub of a washing machine according to an embodiment of the present invention.
【図２】図１に示される内槽の断面図である。FIG. 2 is a cross-sectional view of the inner tank shown in FIG.
【図３】図１における領域８内に位置する胴部３の上端
部を拡大した図である。FIG. 3 is an enlarged view of an upper end portion of a body portion 3 located in a region 8 in FIG.
【図４】図２における領域９内を拡大した断面図であ
る。FIG. 4 is an enlarged sectional view of a region 9 in FIG.
【図５】（ａ）〜（ｆ）は、図１に示される洗濯機の内
槽の製造工程を順次示す斜視図である。5A to 5F are perspective views sequentially showing a manufacturing process of the inner tub of the washing machine shown in FIG.
【図６】かしめ部の形成前の板材の両端部の形状を示す
平面図である。FIG. 6 is a plan view showing the shapes of both end portions of the plate material before forming the crimped portion.
【図７】（ａ）は、かしめ部を形成した後の胴部の部分
平面図である。（ｂ）は、（ａ）におけるＶＩＩｂ−Ｖ
ＩＩｂ線に沿う断面図である。（ｃ）は、（ａ）におけ
るＶＩＩｃ−ＶＩＩｃ線に沿う断面図である。FIG. 7A is a partial plan view of the body portion after forming the caulked portion. (B) is VIIb-V in (a)
It is sectional drawing which follows the IIb line. (C) is sectional drawing which follows the VIIc-VIIc line in (a).
【図８】従来の洗濯機の内槽の一例を示す斜視図であ
る。FIG. 8 is a perspective view showing an example of an inner tub of a conventional washing machine.
【図９】板材の両端を単純にかしめることによって胴部
３を形成した場合の従来の胴部の上端部を示す部分側面
図である。FIG. 9 is a partial side view showing an upper end portion of a conventional body portion when the body portion 3 is formed by simply crimping both ends of a plate material.
【図１０】（ａ）〜（ｈ）は、図８に示される従来の洗
濯機の内槽の製造工程を順次示す斜視図である。10 (a) to 10 (h) are perspective views sequentially showing a manufacturing process of the inner tub of the conventional washing machine shown in FIG.
１ 内槽 ２ バランスリング ３ 胴部 ４ 底部 ５，５ａ かしめ部 ５ａ′ かしめ部上端 ６ａ，６ｂ 重ね合わせ部 ７ ねじ ８，９ 領域 １０ａ，１０ｂ カーリング部 １１ａ，１１ｂ ビーディング部 １２ 板材 １２ａ 一方端 １２ｂ 他方端 １３，１３ａ，１３ｂ，１３ｃ，１３ｄ 貫通穴 １４ａ，１４ｂ，１４ｃ，１４ｄ 切欠部 １５ 溶接部 1 Inner tank 2 Balance ring 3 Body part 4 Bottom part 5, 5a Caulking part 5a 'Caulking part upper end 6a, 6b Stacking part 7 Screw 8, 9 Area 10a, 10b Curling part 11a, 11b Beading part 12 Plate material 12a One end 12b Other end 13, 13a, 13b, 13c, 13d Through hole 14a, 14b, 14c, 14d Notch 15 Weld
Claims (3)
より形成される胴部と、 前記胴部の下端に取付けられた底部とを備え、 前記胴部の上下端近傍には、前記板材の端部が重ね合わ
されかつ該重ね合わされた部分を貫通するように第１と
第２の貫通穴がそれぞれ設けられた第１と第２の重ね合
わせ部が設けられ、 前記第１と第２の重ね合わせ部の間には、前記板材の両
端が互いに係合した状態でかしめられることにより形成
されるかしめ部が設けられる、洗濯機の内槽。1. A body portion formed by forming a metal plate material into a cylindrical shape, and a bottom portion attached to a lower end of the body portion, wherein the plate material is provided near upper and lower ends of the body portion. First and second overlapping portions are provided in which first and second through holes are respectively provided so that the end portions of the first and second through holes overlap each other, and the first and second overlapping portions are provided. An inner tub of a washing machine, wherein a caulking portion formed by crimping both ends of the plate material in a state of being engaged with each other is provided between the overlapping portions.
付けられ、 前記バランスリングは前記第１の貫通穴に螺着されるね
じにより前記胴部に固定され、 前記底部は前記第２の貫通穴に螺着されるねじにより前
記胴部に固定される、請求項１に記載の洗濯機の内槽。2. A balance ring is attached to an upper end of the body portion, the balance ring is fixed to the body portion by a screw screwed into the first through hole, and the bottom portion is formed into the second through hole. The inner tub of a washing machine according to claim 1, wherein the inner tub is fixed to the body by a screw screwed into the hole.
ーナ部近傍に第１と第２の貫通穴をそれぞれ形成し、前
記板材の他方端における１対のコーナ部近傍に第３と第
４の貫通穴をそれぞれ形成する工程と、 前記第１と第２の貫通穴間に位置する前記板材の一方端
に第１と第２の切欠部を間隔をあけて形成し、前記第３
と第４の貫通穴間に位置する前記板材の他方端に第３と
第４の切欠部を間隔をあけて形成する工程と、 前記第１と第２の切欠部間に位置する前記板材の前記一
方端と前記第３と第４の切欠部間に位置する前記板材の
他方端とを互いに係合させた状態でかしめるとともに前
記第１と第２の貫通穴を前記第３と第４の貫通穴上にそ
れぞれ配置することにより、前記板材を円筒状に成形す
る工程と、を備えた、洗濯機の内槽の製造方法。3. A first and a second through hole are formed in the vicinity of a pair of corner portions at one end of a metallic plate material, and a third and a third through hole are formed in the vicinity of a pair of corner portions at the other end of the plate material. Forming each of the four through-holes, and forming first and second cutout portions at one end of the plate member located between the first and second through-holes at intervals.
And forming a third and a fourth notch at a distance from the other end of the plate located between the first and second through holes, and a step of forming the plate located between the first and the second notches. The one end and the other end of the plate member located between the third and fourth cutouts are caulked in a state of being engaged with each other, and the first and second through holes are formed in the third and fourth through holes. And a step of forming the plate material into a cylindrical shape by arranging the plate material on the through holes, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8036118A JP2878637B2 (en) | 1996-02-23 | 1996-02-23 | Inner tub of washing machine and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8036118A JP2878637B2 (en) | 1996-02-23 | 1996-02-23 | Inner tub of washing machine and method of manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09225176A true JPH09225176A (en) | 1997-09-02 |
| JP2878637B2 JP2878637B2 (en) | 1999-04-05 |
Family
ID=12460872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8036118A Expired - Fee Related JP2878637B2 (en) | 1996-02-23 | 1996-02-23 | Inner tub of washing machine and method of manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2878637B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100457579B1 (en) * | 2002-11-28 | 2004-11-18 | 엘지전자 주식회사 | drum of drum typed washer |
| WO2007093466A1 (en) * | 2006-02-15 | 2007-08-23 | BSH Bosch und Siemens Hausgeräte GmbH | Washing machine laundry drum |
| CN107075770A (en) * | 2014-11-26 | 2017-08-18 | Bsh家用电器有限公司 | The method and home appliances component of connection are folded for being set up in family expenses furniture construction |
| WO2020063493A1 (en) * | 2018-09-30 | 2020-04-02 | 青岛海尔洗衣机有限公司 | Balance ring mounting structure and inner tub having same, and washing machine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101367112B1 (en) | 2007-06-07 | 2014-02-26 | 삼성전자주식회사 | Rotating tub body and drum type washing machine having the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0751490A (en) * | 1993-08-10 | 1995-02-28 | Toshiba Corp | Spindrier basket of washing machine |
-
1996
- 1996-02-23 JP JP8036118A patent/JP2878637B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0751490A (en) * | 1993-08-10 | 1995-02-28 | Toshiba Corp | Spindrier basket of washing machine |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100457579B1 (en) * | 2002-11-28 | 2004-11-18 | 엘지전자 주식회사 | drum of drum typed washer |
| WO2007093466A1 (en) * | 2006-02-15 | 2007-08-23 | BSH Bosch und Siemens Hausgeräte GmbH | Washing machine laundry drum |
| DE202007019494U1 (en) | 2006-02-15 | 2012-12-11 | BSH Bosch und Siemens Hausgeräte GmbH | Washing laundry drum |
| US8806904B2 (en) | 2006-02-15 | 2014-08-19 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Washing machine laundry drum |
| CN107075770A (en) * | 2014-11-26 | 2017-08-18 | Bsh家用电器有限公司 | The method and home appliances component of connection are folded for being set up in family expenses furniture construction |
| CN107075770B (en) * | 2014-11-26 | 2019-08-30 | Bsh家用电器有限公司 | For establishing the method and household appliance component that fold connection in household furniture construction |
| WO2020063493A1 (en) * | 2018-09-30 | 2020-04-02 | 青岛海尔洗衣机有限公司 | Balance ring mounting structure and inner tub having same, and washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2878637B2 (en) | 1999-04-05 |
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