JPH03204436A - Manufacture of casing assembly of continuously variable transmission - Google Patents

Manufacture of casing assembly of continuously variable transmission

Info

Publication number
JPH03204436A
JPH03204436A JP34347189A JP34347189A JPH03204436A JP H03204436 A JPH03204436 A JP H03204436A JP 34347189 A JP34347189 A JP 34347189A JP 34347189 A JP34347189 A JP 34347189A JP H03204436 A JPH03204436 A JP H03204436A
Authority
JP
Japan
Prior art keywords
casing
holes
cover
casing body
casing cover
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
Application number
JP34347189A
Other languages
Japanese (ja)
Inventor
Haruyoshi Hisamura
春芳 久村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP34347189A priority Critical patent/JPH03204436A/en
Publication of JPH03204436A publication Critical patent/JPH03204436A/en
Pending legal-status Critical Current

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  • General Details Of Gearings (AREA)

Abstract

PURPOSE:To improve the parallelism of both driving and following shafts by temporarily assembling a casing mainframe and a casing cover, machining bearing placing holes and positioning holes at the same time, and pressing pins into the positioning holes during assembling, to match the positions of the bearing placing holes with one another accurately. CONSTITUTION:In the state that a casing mainframe 12 and a casing cover 14 are temporarily assembled with a bolt 16, bearing placing holes 18, 20 and 22, 24 are machined at the same time and positioning holes 26, 28 are machined at the same time. When the assembling is finished, the bolt 16 is removed to disassemble the casing mainframe 12 and the cover 14, and then necessary parts are incorporated into the casing mainframe 12 and the casing cover 14 to assemble the casing mainframe 12 with the casing cover 14. At this time, pins are pressed into the positioning holes 26, 28 to put the casing mainframe 12 and the casing cover 14 in such a state as in machining. As a result, the bearing placing holes 18, 20 and 22, 24 are accurately in a concentric arrangement and a driving shaft and a following shaft which are supported by the holes 18, 20 and 22, 24 are in parallel in high precision.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 本発明は、無段変速機ケーシング組立体の製造方法に関
するものである。
DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method of manufacturing a continuously variable transmission casing assembly.

(ロ)従来の技術 従来の無段変速機ケーシング組立体として、例えば特開
昭64−30961号公報に示ざわるものがある。こわ
に示されるケーシング組立体は、ケーシング本体と、こ
れの一端側の開口部を覆うように設けられるケーシング
カバーとから構成されている。ケーシング組立体内には
駆動プーリ及び従動プーリか収容される。駆動プーリ及
び従動プーリをそれぞれ支持する回転軸は軸受けを介し
てケーシング本体及びケーシングカバーによって支持さ
れる。すなわち、回転軸はケーシング本体側の軸受配置
用穴に設けられた軸受と、ケーシングカバー側の軸受配
置用穴内に設けられた軸受とによって支持される。ケー
シング本体の軸受配置用穴はケーシング本体の加工時に
加工され、方、ケーシングカバーの軸受配置用穴はケー
シングカバーの加工時に加工される。ケーシング本体と
ケーシングカバーとは両者に設けられた位置決め用の穴
に位置決め用のピンをすさまばめすることにより位置決
めされる。この状態でボルトによってケーシングカバー
かケーシング本体に取り付けられる。
(B) Prior Art A conventional continuously variable transmission casing assembly is disclosed, for example, in Japanese Patent Application Laid-open No. 30961/1983. The casing assembly shown in FIG. 1 is composed of a casing body and a casing cover provided to cover an opening at one end of the casing body. A drive pulley and a driven pulley are housed within the casing assembly. Rotating shafts that respectively support the drive pulley and the driven pulley are supported by the casing body and the casing cover via bearings. That is, the rotating shaft is supported by a bearing provided in a bearing placement hole on the casing body side and a bearing provided in a bearing placement hole on the casing cover side. The bearing placement hole in the casing body is machined when the casing body is machined, and the bearing placement hole in the casing cover is machined when the casing cover is machined. The casing body and the casing cover are positioned by tightly fitting a positioning pin into a positioning hole provided in both. In this state, it is attached to the casing cover or casing body using bolts.

(ハ)発明か解決しようとする課題 しかしなから、上記のような従来の無段変速機ケーシン
グ組立体の製造方法には、駆動プーリ用の回転軸と従動
プーリ用の回転軸との平行度を高い精度で確保すること
か困難であるという問題点かある。すなわち、それぞれ
別に加工された軸受配置用穴を有するケーシング本体及
びケーシングカバーを、位置決め用ピンを位置決め用穴
にすさまばめすることにより組立てたのでは、軸受配置
用穴の位置を正確に一致させることか困難である。この
結果、両回転軸の平行度が低下する。この平行度が低下
すると、■ベルトとプーリとの接触か不均等となり、■
ベルトの寿命が短かくなる。本発明はこのような課題を
解決することを目的としている。
(c) Problem to be solved by the invention However, the conventional manufacturing method of the continuously variable transmission casing assembly as described above requires the parallelism of the rotating shaft of the driving pulley and the rotating shaft of the driven pulley. The problem is that it is difficult to ensure high accuracy. In other words, if the casing body and casing cover, each of which has a separately machined bearing placement hole, are assembled by tightly fitting the positioning pin into the positioning hole, the positions of the bearing placement holes cannot be accurately matched. It is difficult to do so. As a result, the parallelism of both rotation axes decreases. If this parallelism decreases, ■ the contact between the belt and the pulleys will become uneven, and ■
Belt life will be shortened. The present invention aims to solve these problems.

(ニ)課題を解決するための手段 本発明は、ケーシング本体及びケーシングカバーの軸受
配置用穴を仮組付は状態で同時に加工すると共に位置決
め用穴も同時に加工し、組立て時には位置決め用穴に位
置決め用ピンを圧入することにより、上記課題を解決す
る。すなわち、本発明による無段変速機ケーシングカバ
ーの製造方法は、ケーシング本体(12)と、これの開
口端面にボルト(16)により結合されるケーシングカ
バー(14)とから成るVベルト式無段変速機用ケーシ
ング組17体(10)でありで、駆動プーリ(54)側
の回転軸(32)を支持する軸受(34及び36〉を配
置する軸受配置用穴(18及び20)かデーシンク本体
の壁部及びケーシングカバーにそわそわ設けられており
、また従動プーリの回転軸を支持する軸受(40及び4
2)を配置する軸受配置用穴(22及び24)もそれぞ
れケーシング本体の壁部及びケーシングカバーに設けら
打ており、ケーシング本体の壁部に設けられる上記軸受
配置用穴は貫通穴であり、ケーシングカバーに設けられ
る上記軸受配置用穴は非貫通穴であるものを製造する方
法を対象としたものであり、ケーシング本体にケーシン
グカバーを仮組付けし、駆動プーリ及び従動プーリ用の
軸受配置用穴をケーシング本体側から加工し、同時にケ
ーシング本体及びケーシングカバーの同一位置に位置決
め用穴(26及び28)を加工し、次いで、ケーシング
本体とケーシングカバーとの仮組付けを解除し、ケーシ
ング組立体内に駆動プーリ及び従動プーリを収容する最
終組立時にはケーシング本体及びケーシングカバーの上
記位置決め用穴に位置決め用ピン(44)を圧入するこ
とにより、両者の位置合わせを行うことを特徴としてい
る。なお、かっこ内の符号は後述の実施例の対応する部
材を示す。
(D) Means for Solving the Problems The present invention is characterized in that the bearing arrangement holes in the casing body and casing cover are machined simultaneously during temporary assembly, and the positioning holes are also machined at the same time, and the positioning holes are used to position the casing body and the casing cover at the same time. The above problem is solved by press-fitting the pin. That is, the method for manufacturing a continuously variable transmission casing cover according to the present invention is a V-belt type continuously variable transmission comprising a casing body (12) and a casing cover (14) connected to the open end surface of the casing cover (14) with bolts (16). There are 17 machine casing assemblies (10), and there are holes for bearings (18 and 20) for arranging the bearings (34 and 36) that support the rotating shaft (32) on the drive pulley (54) side or the sink body. Bearings (40 and 4) are installed on the wall and casing cover, and also support the rotating shaft of the driven pulley.
Bearing placement holes (22 and 24) for arranging 2) are also provided in the wall of the casing body and the casing cover, respectively, and the bearing placement holes provided in the wall of the casing body are through holes, The above-mentioned hole for bearing arrangement provided in the casing cover is intended for the method of manufacturing a non-through hole, and the casing cover is temporarily assembled to the casing body, and the hole for bearing arrangement for the driving pulley and driven pulley is used for manufacturing. Holes are machined from the casing body side, and positioning holes (26 and 28) are machined at the same position on the casing body and casing cover at the same time.Then, the temporary assembly between the casing body and the casing cover is released, and the inside of the casing assembly is machined. At the time of final assembly in which the driving pulley and the driven pulley are housed in the casing body and the casing cover, positioning pins (44) are press-fitted into the positioning holes of the casing body and the casing cover to align the two. Note that the symbols in parentheses indicate corresponding members in the embodiments described later.

(ホ)作用 ケーシング本体とケーシングカバーとか仮組付けされた
状態で軸受配置用穴が同時に加工される。また、この軸
受配置用穴の加工と同時に位置決め用穴の加工も行われ
る。加工終了後はいったん仮付けを解除し、最終組立時
に駆動プーリ、従動プーリなどケーシング組立体内に所
定の部材を組み込み、次いでケーシングカバーを組み付
ける。この際、ケーシング本体及びケーシングカバーの
位置決め用穴に位置決め用ピンを圧入する。これにより
、ケーシング本体とケーシングカバーとは軸受配置用穴
加工時と同様の位置関係となる。従って、軸受配置用穴
は同心かつ平打状態となる。従って、駆動プーリ及び従
動プーリの両回転軸は高い平行度で組立てられることに
なる。
(e) Operation Holes for bearing placement are simultaneously machined while the casing body and casing cover are temporarily assembled. Moreover, the positioning hole is also machined at the same time as the bearing placement hole is machined. After the processing is completed, the temporary attachment is temporarily released, and during final assembly, predetermined members such as the driving pulley and the driven pulley are assembled into the casing assembly, and then the casing cover is assembled. At this time, positioning pins are press-fitted into the positioning holes of the casing body and the casing cover. As a result, the casing body and the casing cover have the same positional relationship as when drilling holes for bearing placement. Therefore, the bearing placement holes are concentric and flat. Therefore, both the rotation shafts of the driving pulley and the driven pulley are assembled with high parallelism.

二わにより、■ベルトの耐久性を向上することかできる
By using two layers, ■ The durability of the belt can be improved.

(へ)実施例 第1図に加工時におけるケーシング組立体10を示す。(f) Example FIG. 1 shows the casing assembly 10 during processing.

ケーシング組立体10はケーシング本体12とケーシン
グカバー14とから構成されている。加工時にはケーシ
ング本体12とケーシングカバー14とをボルト16の
はめ合いによって概略的に位置決めし、仮組付けする。
The casing assembly 10 is composed of a casing body 12 and a casing cover 14. During processing, the casing body 12 and the casing cover 14 are roughly positioned by fitting bolts 16 and temporarily assembled.

第1図に示すように、仮組付けした状態でケーシング本
体12側の軸受配置用穴18及びケーシングカバー14
側の軸受配置用穴20を同時に加工し、またもう1つの
軸受配置用穴22及び軸受配置用穴24についても同時
に加工する。軸受配置用穴18.20.22及び24の
加工は第1図中右側から行われる。軸受配置用穴20の
加工を可能とするために、これの径は軸受配置用穴18
の径以下としである。同様に軸受配置用穴24の加工を
可能とするために、これの径は軸受配置用穴22の径以
下としである。軸受配置用穴18及び22は貫通穴であ
り、一方軸受配置用穴20及び24は非J通穴である。
As shown in FIG. 1, the bearing arrangement hole 18 on the casing body 12 side and the casing cover 14 are shown in the temporarily assembled state.
The side bearing placement hole 20 is machined at the same time, and the other bearing placement hole 22 and bearing placement hole 24 are also machined at the same time. The bearing mounting holes 18, 20, 22 and 24 are machined from the right side in FIG. In order to make it possible to machine the bearing placement hole 20, the diameter of this hole is the same as that of the bearing placement hole 18.
The diameter should be less than or equal to . Similarly, in order to enable machining of the bearing placement hole 24, its diameter is set to be smaller than the diameter of the bearing placement hole 22. Bearing placement holes 18 and 22 are through holes, while bearing placement holes 20 and 24 are non-J through holes.

また、第1図に示すようにケーシング本体12とケーシ
ングカバー14とを組付は状、態のままで位置決め用穴
26及び28の加工が行われる。位置決め用穴26及び
28は1本のり一マを貫通させることにより同時に加工
される。なお、同様の位置決め用穴か図示してないもう
1箇所に設けられる。上述の軸受配置用穴18.20.
22及び24及び位置決め用穴26及び28の加工及び
これらの部分以外の加工が終了すると、ボルト16を取
り外し、ケーシング本体12とケーシングカバー14と
を分離する。
Further, as shown in FIG. 1, the positioning holes 26 and 28 are processed while the casing body 12 and the casing cover 14 are still assembled. The positioning holes 26 and 28 are machined simultaneously by passing one hole through the hole. Note that a similar positioning hole is provided at another location not shown. The above-mentioned bearing placement holes 18.20.
When the machining of the holes 22 and 24, the positioning holes 26 and 28, and the machining of other parts are completed, the bolts 16 are removed and the casing body 12 and the casing cover 14 are separated.

次いで、ケーシング本体12内にクラッチ、ブレーキ及
び遊星歯車機構からなる前後進切換機構52、駆動プー
リ54、従動プーリ56、両プーリに巻き掛けられるV
ベルト58、差動機構60などが組み込まれる。なお、
エンジンからの駆動力は、フルードカップリング50、
前後進切換機構52、駆動プーリ54、Vベルト58、
従動プーリ56、差動機構60の順に伝達される。駆動
プーリ54は固定円すい部54aと可動円すい部54b
とを有しており、可動円すい部54bか軸方向に移動す
ることによりV字状みそ間隔を可変としである。固定円
すい部54aと一体に駆動軸32が設けられている。駆
動軸32は軸受34及び軸受36によって支持されるこ
とになる。軸受34は軸受配置用穴18にはめ合わされ
、また軸受36は軸受配置用穴20にはめ合わされる。
Next, inside the casing body 12, there is a forward/reverse switching mechanism 52 consisting of a clutch, a brake, and a planetary gear mechanism, a driving pulley 54, a driven pulley 56, and a V wound around both pulleys.
A belt 58, a differential mechanism 60, etc. are incorporated. In addition,
The driving force from the engine is a fluid coupling 50,
Forward/forward switching mechanism 52, drive pulley 54, V belt 58,
The signal is transmitted to the driven pulley 56 and the differential mechanism 60 in this order. The drive pulley 54 has a fixed conical portion 54a and a movable conical portion 54b.
By moving the movable conical portion 54b in the axial direction, the V-shaped groove interval can be varied. A drive shaft 32 is provided integrally with the fixed conical portion 54a. The drive shaft 32 will be supported by bearings 34 and 36. The bearing 34 is fitted into the bearing placement hole 18, and the bearing 36 is fitted into the bearing placement hole 20.

また、従動プーリ56も固定円すい部56aと可動円す
い部56bとを有しており、これによりV字状みぞ間隔
か可変としである。固定円すい部56bと一体に従動軸
38が設けられている。従動軸38は軸受40及び軸受
42によってケーシング組立体10に支持されることに
なる。軸受40か軸受配置用穴22にはめ合わされ、軸
受42か軸受配置用穴24にはめ合わされる。ケーシン
グカバー14は駆動プーリ54、従動プーリ56、Vベ
ルト58などを組み込んだ後ケーシング本体12に取り
付けられる。その際、位置合わせ穴26と位置合わせ穴
28とに位置合わせ用ピン44を圧入する。位置合わせ
用穴26及び28は2箇所に設けられており、これらに
位置合わせ用ピン44か圧入されるのでケーシング本体
12とケーシングカバー14との位置関係は加工時の状
態に再現される。従って、軸受配置用穴18及び20は
同心となり、また軸受配置用穴22及び24も同心とな
る。従って、軸受配置用穴18及び20にそれぞれ軸受
34及び36を介して支持される駆動軸32と、軸受配
置用穴22及び24に軸受40及び42を介して支持さ
れる従動輪38とは高い精度で7行状態となる。この状
態で複数のホルト16を締付けることにより、ケーシン
グ本体12とケーシングカバー14との組立てが完了す
る。上述のように、駆動軸32と従動軸38との平行度
が高いため、動力伝達中にVベルト58に無理な力か作
用することはなく、Vベルト58の耐久性を向上するこ
とができる。
The driven pulley 56 also has a fixed conical portion 56a and a movable conical portion 56b, so that the V-shaped groove interval can be varied. A driven shaft 38 is provided integrally with the fixed conical portion 56b. The driven shaft 38 will be supported in the casing assembly 10 by bearings 40 and 42. The bearing 40 is fitted into the bearing placement hole 22, and the bearing 42 is fitted into the bearing placement hole 24. The casing cover 14 is attached to the casing body 12 after incorporating the drive pulley 54, driven pulley 56, V-belt 58, etc. At that time, the positioning pins 44 are press-fitted into the positioning holes 26 and 28. The positioning holes 26 and 28 are provided at two locations, and since the positioning pins 44 are press-fitted into these, the positional relationship between the casing body 12 and the casing cover 14 is reproduced as it was during processing. Therefore, bearing placement holes 18 and 20 are concentric, and bearing placement holes 22 and 24 are also concentric. Therefore, the drive shaft 32 supported in the bearing placement holes 18 and 20 via bearings 34 and 36, respectively, and the driven wheel 38 supported in the bearing placement holes 22 and 24 via bearings 40 and 42 are expensive. The accuracy is 7 lines. By tightening the plurality of bolts 16 in this state, the assembly of the casing main body 12 and the casing cover 14 is completed. As mentioned above, since the drive shaft 32 and the driven shaft 38 are highly parallel, no unreasonable force is applied to the V-belt 58 during power transmission, and the durability of the V-belt 58 can be improved. .

<ト)発明の詳細 な説明してきたように、本発明によると、ケーシング本
体とケーシングカバーとを仮組付け状態として軸受配置
用穴及び位置合わせ用穴を加重し、組立て時には位置合
わせ用穴に位置合わせ用ピンを圧入するようにしたのて
、ケ−シング本体 高い精度となり、Vベルトの耐久性を向上することかで
きる。
<G) As described in detail, according to the present invention, the casing body and the casing cover are temporarily assembled, and the bearing placement hole and the positioning hole are weighted, and during assembly, the positioning hole is loaded. Since the positioning pins are press-fitted, the casing body can be formed with high precision, and the durability of the V-belt can be improved.

【図面の簡単な説明】[Brief explanation of drawings]

第1図はケーシング組立体を示す図、第2図は組立てか
完了した無段変速機を示す図である。 10・・・ケーシング組立体、12・ ケーシング本体、14・・・ケーシングカバー18.2
0.22.24・・・軸受配置用穴、26.28・・・
位置合わせ用穴、44・イQ置合わせ用ピン。
FIG. 1 is a diagram showing the casing assembly, and FIG. 2 is a diagram showing the continuously variable transmission after assembly. 10... Casing assembly, 12. Casing body, 14... Casing cover 18.2
0.22.24...Bearing placement hole, 26.28...
Hole for positioning, 44・IQ positioning pin.

Claims (1)

【特許請求の範囲】 ケーシング本体と、これの開口端面にボルトにより結合
されるケーシングカバーとから成るVベルト式無段変速
機用ケーシング組立体であって、駆動プーリ側の回転軸
を支持する軸受を配置する軸受配置用穴がケーシング本
体の壁部及びケーシングカバーにそれぞれ設けられてお
り、また従動プーリの回転軸を支持する軸受を配置する
軸受配置用穴もそれぞれケーシング本体の壁部及びケー
シングカバーに設けられており、ケーシング本体の壁部
に設けられる上記軸受配置用穴は貫通穴であり、ケーシ
ングカバーに設けられる上記軸受配置用穴は非貫通穴で
あるものを製造する方法において、 ケーシング本体にケーシングカバーを仮組付けし、駆動
プーリ及び従動プーリ用の軸受配置用穴をケーシング本
体側から加工し、同時にケーシング本体及びケーシング
カバーの同一位置に位置決め用穴を加工し、次いで、ケ
ーシング本体とケーシングカバーとの仮組付けを解除し
、ケーシング組立体内に駆動プーリ及び従動プーリを収
容する最終組立時にはケーシング本体及びケーシングカ
バーの上記位置決め用穴に位置決め用ピンを圧入するこ
とにより、両者の位置合わせを行うことを特徴とする無
段変速機ケーシング組立体の製造方法。
[Claims] A casing assembly for a V-belt type continuously variable transmission consisting of a casing body and a casing cover connected to an open end face of the casing body with bolts, the bearing supporting a rotating shaft on the drive pulley side. Bearing placement holes for locating the bearings that support the rotating shaft of the driven pulley are provided in the casing body wall and casing cover, respectively. A method for manufacturing a casing body, wherein the bearing placement hole provided in the wall of the casing body is a through hole, and the bearing placement hole provided in the casing cover is a non-through hole. Temporarily assemble the casing cover to the casing body, machine the bearing arrangement holes for the driving pulley and driven pulley from the casing body side, and at the same time machine the positioning holes at the same positions on the casing body and casing cover. When the temporary assembly with the casing cover is released and the driving pulley and driven pulley are housed in the casing assembly, the positioning pins are press-fitted into the positioning holes in the casing body and casing cover to align them. A method of manufacturing a continuously variable transmission casing assembly, characterized by performing the following steps.
JP34347189A 1989-12-28 1989-12-28 Manufacture of casing assembly of continuously variable transmission Pending JPH03204436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP34347189A JPH03204436A (en) 1989-12-28 1989-12-28 Manufacture of casing assembly of continuously variable transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP34347189A JPH03204436A (en) 1989-12-28 1989-12-28 Manufacture of casing assembly of continuously variable transmission

Publications (1)

Publication Number Publication Date
JPH03204436A true JPH03204436A (en) 1991-09-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP34347189A Pending JPH03204436A (en) 1989-12-28 1989-12-28 Manufacture of casing assembly of continuously variable transmission

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JP (1) JPH03204436A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5480361A (en) * 1993-01-27 1996-01-02 Nissan Motor Co., Ltd. Change direction planetary gearing for continuously variable transmission
US6338688B1 (en) 1998-09-29 2002-01-15 Kawasaki Jukogyo Kabushiki Kaisha Cover structure of belt converter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52148767A (en) * 1976-06-04 1977-12-10 Mitsubishi Electric Corp Toothed wheel gearing

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52148767A (en) * 1976-06-04 1977-12-10 Mitsubishi Electric Corp Toothed wheel gearing

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5480361A (en) * 1993-01-27 1996-01-02 Nissan Motor Co., Ltd. Change direction planetary gearing for continuously variable transmission
US6338688B1 (en) 1998-09-29 2002-01-15 Kawasaki Jukogyo Kabushiki Kaisha Cover structure of belt converter

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