JPS58134268A - Multistage pulley with multiple v-shaped groove and its manufacturing method - Google Patents

Abstract

PURPOSE:To prevent damage or breakage of multiple V-groove in a multistage pulley with a multiple V-groove formed by pressing a metal material by keeping the thickness of a peripheral portion where a multiple V-groove is formed equal to that of the metal material. CONSTITUTION:A metal material having a thickness t1 is used to form a bottom wall portion 3 having a thickness t2 thinner than the thickness t1. Peripheral wall portions 4, 6 with grooves having different outside diameters, the first side wall portion 5, the second side wall portion 7 and an opening end portion 8 are respectively formed by individual pressing working processes. Respective inner surfaces 10, 11 of the peripheral wall portions 4, 5 are substantially smooth surfaces, and the thickness of each peripheral portion is ensured to be equal to the thickness t1. Thus, a pulley material 12 is formed. V-grooves are formed on the peripheral wall portions 4, 6 by a well-known rolling roller, and V-grooves 13a, 13b and V-grooves 14a, 14b are respectively formed on the first peripheral wall portion 4 and the second peripheral portion 6.

Description

【発明の詳細な説明】 本発明は板金製の多重Ｖ溝付ブーりに関し、特に溝部の
直径か異ｔＪつた多重Ｖ溝付部を２段以上有する多重ｖ
ＩＩＩ付プーリの構造に関よるものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multiple V-grooved booby made of sheet metal, and particularly to a multiple V-grooved booby having two or more stages of multiple V-grooved sections with different diameters of the grooves.
This is related to the structure of the pulley with III.

自動型のエンジン（おいてはファン、ウォータポンプ、
発ｘｉ、・・・等の多数の回転装置を駆動Ｔるために多
重Ｖ溝付プーリが使用びｎているか、前記各回転装置に
ついてはそわぞ旧回転数及び駆動力に相違かあり、各回
転装散紀は最％＊した回転ｉｉｒを得る必要かあると共
に、エンジンの高度化に伴い各回転装置１も増加し、こ
れらの回転装置Ｉｔを同時に回転させるため（多重Ｖ溝
付プーリσ）溝部の径が異なった多段式σＩ多多重溝溝
付プーリ強く要望さ赴でいた。然し。Automatic engines (fans, water pumps,
Whether multiple V-grooved pulleys are used to drive a large number of rotating devices such as generators, etc., the rotational speed and driving force of each of the rotating devices may be different. It is necessary to obtain the maximum %* rotation Iir in the rotating rotation, and as engines become more sophisticated, the number of rotating devices 1 increases, and in order to rotate these rotating devices It at the same time (multiple V-grooved pulleys σ) There was a strong demand for a multi-stage σI multi-groove pulley with different groove diameters. However.

従来の一枚の金属板を屈曲させて「ひだ状」ｋして製造
すえ方法では直径の異なる多重Ｖ溝付プーリσ１製造は
非常Ｃ困難であり、そのた？ｊｒに直径の異なった多段
式プーリについて（ゴ予めそれぞｎ外径の異な５た多重
Ｖ溝付プーリを製造し両者を溶接等、＆：より接合する
方法が用いらｔｌていたが、この方法では溶接部の強度
か若干羽く使用中に破損し易いという欠点があり、又従
来の一枚の金属素材を「ひだ状」（折曲げて圧潰して周
壁部を形成後溝部愛転造したものにおいては周壁部の金
属結晶が異方向茫成Ｗｅぎわ、材料の強度についても均
一化がむずかしく金属材料に挫屈σ］現象が見受けられ
、長年の使用により、又突然の高負荷（より溝部σ］破
壊、ワレ、ヒビ入り等の不具合があった。Using the conventional manufacturing method of bending a single metal plate to create a "pleat shape," it is extremely difficult to manufacture multiple V-grooved pulleys σ1 with different diameters. Regarding multi-stage pulleys with different diameters, a method was used in which five multi-V grooved pulleys with different outer diameters were manufactured in advance and the two were joined by welding, etc., but this This method has the disadvantage that the strength of the welded part is slightly weak, so it is easy to break during use, and the conventional method involves folding and crushing a single piece of metal material to form a peripheral wall, followed by rolling the grooves. In such cases, the metal crystals on the peripheral wall grow in different directions, and it is difficult to make the strength of the material uniform, causing buckling of the metal material. Groove σ] There were defects such as destruction, cracking, and cracking.

本発明の目的は上記欠点を一挙に解決すべく■金属素材
の中央部をプレス加工により薄肉の底壁部を形成し ■各成形工程ようＶ溝を形成するＦｔ１１１２部に相当
する部分については当初の金属素材の厚みを保持しつつ
、その他の部分を伸展せしめて外径の異なる２段又は８
”□段の周壁部を持つブー：・ り素材を形成し　　　″ ■軽量化σまためにＩｌｌ壁部の内周面に四部を設け■
前記２段又は８段σ）８壁部に転造ローラにより 多重Ｖ溝を形成するものである。The purpose of the present invention is to solve the above-mentioned drawbacks all at once.■ Form a thin bottom wall part by press working the central part of the metal material.■ As in each molding process, the part corresponding to the Ft1112 part that forms the V groove is initially While maintaining the thickness of the metal material, other parts are expanded to create two or eight layers with different outer diameters.
``□A boot with a stepped peripheral wall part: Forming a material,''
Multiple V-grooves are formed in the 2-stage or 8-stage σ) 8 wall portion using a rolling roller.

以上σ）工程により一枚の金属素材よりプレス加工によ
り金属材料の整ったＷ＠壁部か形成ｐｎ、外径の異なっ
た２〜８段σ）■溝を有する、強度のある軽量な多段式
多重Ｖ溝付プーリを成形でさるものである。Above σ) process, a single metal material is pressed to form a well-formed metal W @ wall part pn, 2 to 8 steps with different outer diameters σ) ■ A strong, lightweight multi-stage type with grooves. This is a molded pulley with multiple V grooves.

以下実施例について説明Ｔる。Examples will be explained below.

第１図は本発明にもとづく成形工程で（イ）は金属素材
ｌで厚ざｔｌヲ有し、幹）は伸し、カップ成形工程で金
属素材ｌの外周部１ａ’！）押えてプレス工程（より金
属素材中央を張出し加工により円形カップ２を形成しく
ハ）はりストライク成形工程でプレス加工により板厚ｔ
、の約］／２に相当する板厚ｔ１σ）底壁部８ｔ−形成
Ｔ；Ｅ−０に）は＠１８壁工程でプレス加工（より絞り
。Fig. 1 shows a forming process according to the present invention, in which (a) is a metal material l having a thickness tl, the trunk) is elongated, and in the cup forming process, the outer circumference 1a' of the metal material l! ) Hold and press process (form the circular cup 2 by stretching the center of the metal material)
The plate thickness t1σ corresponding to approximately ]/2) of the bottom wall portion 8t-formation T; E-0) is pressed (more drawn) in the @18 wall process.

据込を行うことにより第１脚壁部４ヶ形成し、（ホ）は
＠１側壁成形工程でプレス加工紀より第１１・。Four first leg wall parts are formed by upsetting, and (e) is the 11th leg wall part from the press working stage in the @1 side wall forming process.

周壁部鳴の左側端部に１１８１ｍ壁５ヶ形成し、（へ）
は第２Ｆ１＠壁工程でブーレス加工により第１周壁部の
外径より大きい外径を有する第２周壁部６を絞り込み、
（ト）は１８２側壁、開口端成形工程でプレス加工によ
り第２周壁部６．第２側壁７及び開口部９に開口端８を
成形Ｔる。この場合ＩＮ１周壁部４及び第２Ｆｆａ壁部
６の内面ｌＯ及び１１はほぼ円滑な面となり、各周壁部
の厚さは金属素材の板厚ｔ１か確保されて、多重Ｖ溝か
形成できる２〜８段（ｈ周壁部斗、６を有するブーり素
材・１２が形成ざｎる０ 次に前記８ａ１部会及び６に公知の転造ローラによりＶ
＠を形成するものでｔｆｓｚＧに示Ｔ様に＠１周壁部鳴
にｖｌＩ１８ａ、１８ｂ、・・・か、ａ２ｆｔａ１ＭＷ
６６ｃＶ’ｌ１４１４　ａ　、　ｌ　４　ｂ　、　−−
・が形成される。5 walls of 1181 m were formed on the left end of the surrounding wall part, (to)
In the 2nd F1@wall process, the second circumferential wall portion 6 having an outer diameter larger than the outer diameter of the first circumferential wall portion is narrowed by Bouless machining,
(G) is the 182 side wall, and the second peripheral wall portion 6. is formed by press working in the opening end forming process. An open end 8 is formed on the second side wall 7 and the opening 9. In this case, the inner surfaces lO and 11 of the IN1 peripheral wall portion 4 and the second Ffa wall portion 6 are almost smooth surfaces, and the thickness of each peripheral wall portion is ensured to be equal to the thickness t1 of the metal material, so that multiple V grooves can be formed. 8 steps (h circumferential wall part, 6) A boob material 12 is formed.
It forms @, and as shown in TfszG, @1 surrounding wall part vlI18a, 18b,... or a2fta1MW
66cV'l1414 a, l4b, --
・is formed.

更に多重Ｖｇ付ツブ−の全体の重量をプーリの堅牢性を
損わず紀軽量化するためにｖＩｌ成形工程において前記
周壁部４及び６の内周面ｌＯ及び１１に適質軽量化のた
めの四部をＶ溝の山部に相当Ｔる位負に設けるもので、
＠８図に示す様に凹部’１５ａ、１５ｂ、−・−及び１
６ａ、１６ｂ、・・・を設けたもので、■溝成形時に図
示しない回転内型ローラの表面に凸部を設は回転内型ロ
ーラとプーリ素材１２及び図示しない転造ローラの回転
圧着によりｌＩ′ｌ壁部に多重ｖ溝と共にプーリ素材の
内周１１１（ｌ及び１１に凹部１５ａ、・・・及びｌ　
６　ａ　＊・・・を設けたもσ？である〇 以上述べた様に前記各工程により板厚ｉ１ｉ有する金属
素材により、先ず板厚ｔ１の約１／２に相当Ｔるｔｌを
有する底壁部が形成さね１次に外径の興なる溝部を有す
るＪ！ＩＩｉ部１８及び１４を形成したもので周壁部σ
）板厚はｔｌの板厚を保持しつつ、金属材料に於てもま
ったく挫屈等の欠点がなく、更に軽量化のため（周壁部
内周面Ｗ凹部を設けたこと′に特長とした多段式σ］多
多重溝溝付プーリ、今後使用が増大Ｔる多段式σノ多重
Ｖ溝付プーリとして堅牢、軽量で、自動血相及びそσ１
他多くの回も機器を同軸上で回転せ臂める各装置におい
ては最も効果的（使用される多段式多重Ｖ溝付プーリで
ある。Furthermore, in order to reduce the overall weight of the tube with multiple Vg without impairing the robustness of the pulley, suitable weight reduction material is applied to the inner peripheral surfaces 10 and 11 of the peripheral walls 4 and 6 in the VIl forming process. The fourth part is provided at a negative position corresponding to the peak part of the V groove,
@8 As shown in figure, recesses '15a, 15b, --- and 1
6a, 16b, . 'l The inner periphery 111 of the pulley material with multiple V grooves on the wall (recesses 15a on l and 11, ... and l
6 Even if we set a *..., σ? 〇 As mentioned above, first, a bottom wall portion having a thickness Tl corresponding to about 1/2 of the plate thickness t1 is formed using the metal material having a plate thickness i1i through each of the above steps. J! IIi parts 18 and 14 are formed, and the peripheral wall part σ
) While maintaining the plate thickness of TL, there are no defects such as buckling even in metal materials, and in order to further reduce the weight (a multi-stage structure featuring a recessed part on the inner circumferential surface of the peripheral wall) Formula σ] Multi-groove pulley, a multi-stage σ multi-V groove pulley whose use will increase in the future, is robust, lightweight, automatic blood phase and σ1
The most effective method is the multi-stage multi-V grooved pulley used in devices that rotate equipment on the same axis many times.

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

第１図は本発明にもとづく多一式多重ｖＳ付プーリσＪ
成形工程で、（イ）をゴ金属素材、同は伸し、カップ成
形工程、（ハ）はりストライク成形工程、に）は第１側
壁工程、←）は第１側壁工程、（へ）は１１ｐ１２８１
！工程、そして（ト）は第２側壁開ロ工程である。 第２図は本発明による実施例の断面簡略図、そして第８
図は本発明σ）他ＯＪ実施例の断面簡略図である。 ｌ・・・金属素材、８・・・底壁部、４・・・第１周壁
部、６・・・ＩＪ！２周壁部、ｌＯ・・・第１内周面、
ｌｌ・・・第２内周面、１２・・−ツーり素材、１３ａ
、１８ｂ　、］、４ａ、１４ｂ・・・Ｖ溝、１５１１５
ｂ・・・第１内周面σ）凹部、１６ａ＋　１６ｂ・・・
第２内周面の凸部。 特許出願人 アイシン精機株式会社 代表者中井令夫Figure 1 shows a pulley σJ with multiple sets of multiple vS based on the present invention.
In the forming process, (a) is the metal material, elongation, cup forming process, (c) beam strike forming process, ni) is the first side wall process, ←) is the first side wall process, (f) is 11p1281
! Step (g) is a second side wall opening step. FIG. 2 is a simplified cross-sectional view of an embodiment according to the present invention, and FIG.
The figure is a simplified cross-sectional view of another OJ embodiment of the present invention. l...Metal material, 8...Bottom wall portion, 4...First peripheral wall portion, 6...IJ! 2 circumferential wall portion, lO... first inner circumferential surface,
ll...Second inner circumferential surface, 12...-tooling material, 13a
, 18b , ], 4a, 14b...V groove, 15115
b...first inner circumferential surface σ) recess, 16a+ 16b...
A convex portion on the second inner peripheral surface. Patent applicant Reio Nakai, representative of Aisin Seiki Co., Ltd.

Claims (1)

【特許請求の範囲】 （１）　　金属素材をプレス加工してなる多段式多重■
溝付プーリ素材釘おいて、外径の異なる周一部を２ケ所
以上設け、１ｒｉｌ記心壁都心壁続しており、局壁部σ
Ｊ板厚番ゴ金属素材０シ板厚が保持ひわ、周壁部に多重
Ｖ溝を形成した多段式多重ｖｌ付プーリ。 （２）前記（ｌｌｋ−示Ｔ％許ｐ求（ｈ範囲σ）多段式
多重■溝付ブーりにおいて、底壁部σＩ板厚か金属素材
σ）板厚より薄いことを特長とした多段式多重Ｖ溝付プ
ーリ。 （８）　　削記頭に示す特許請求の範囲σ）多段式多重
ｖｍ付プーリにおいてＶ溝を設けた周壁部の内周ｒＩｌ
！釘凹部全凹部たことを特長とした多段式多重Ｖ溝付プ
ーリ。[Scope of Claims] (1) Multi-stage multilayer ■ made by pressing metal materials
A grooved pulley material nail is provided at two or more circumferential parts with different outer diameters, and the 1ril marking wall is connected to the city center wall, and the local wall part σ
A multi-stage pulley with a multi-layered VL, which has a holding groove made of metal material with a thickness of 0 and a circumferential wall. (2) In the multi-stage multi-grooved boob described above, the multi-stage type is characterized by being thinner than the bottom wall σI plate thickness or the metal material σ plate thickness. Pulley with multiple V grooves. (8) Claims indicated at the beginning σ) Inner periphery rIl of a peripheral wall portion provided with a V groove in a multi-stage multi-VM pulley
! A multi-stage multi-V grooved pulley featuring a nail recess and all recesses.