JP2523986Y2 - Sheet metal pulley - Google Patents
Sheet metal pulleyInfo
- Publication number
- JP2523986Y2 JP2523986Y2 JP1989002205U JP220589U JP2523986Y2 JP 2523986 Y2 JP2523986 Y2 JP 2523986Y2 JP 1989002205 U JP1989002205 U JP 1989002205U JP 220589 U JP220589 U JP 220589U JP 2523986 Y2 JP2523986 Y2 JP 2523986Y2
- Authority
- JP
- Japan
- Prior art keywords
- bottom wall
- peripheral wall
- bent
- boss
- wall portion
- 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 - Lifetime
Links
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- Pulleys (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、板金製プーリに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a sheet metal pulley.
従来の板金製プーリとして、たとえば第４図に示すよ
うに、カップ状で、かつ、その筒状の周壁部100の外周
にポリＶベルト110と係合させるポリＶ溝101…が形成さ
れ、その平らな底壁部102の中央に形成された貫通孔103
に回転軸（不図示）を挿通させるボス105が嵌入されて
いるとともに、そのボス105の外面に形成された取付鍔
部106が前記貫通孔103の周りの底壁取付部102a内面また
は図示していないが外面にロウ付けや溶接等の接合方法
にて固着されているものが知られている。107は溶接個
所を示す。As a conventional sheet metal pulley, for example, as shown in FIG. 4, a poly-V groove 101 for engaging with a poly-V belt 110 is formed on the outer periphery of a cylindrical peripheral wall portion 100 in a cup shape. Through hole 103 formed at the center of flat bottom wall 102
A boss 105 through which a rotating shaft (not shown) is inserted is fitted into the boss 105, and a mounting flange 106 formed on the outer surface of the boss 105 has an inner surface or a bottom wall mounting portion 102 a around the through hole 103. However, there is known one which is fixed to the outer surface by a joining method such as brazing or welding. 107 indicates a welding point.
ところで、この種のプーリは自動車のオイルポンプ用
プーリなどとして用いられるのであって、ポリＶベルト
110との間で高速回転を効率よく伝達するのに適してお
り、ポリＶベルト110が高テンションで巻き付けられて
いることが多い。そのため、プーリの回転中にはポリＶ
ベルトのテンションが平らな底壁部102を経て前記溶接
個所107等に伝わって溶接個所107等に繰り返し大きな偏
荷重が加わり、それによって溶接部分が破壊しやすく回
転の伝達に悪影響を及ぼす現象の発生する心配があっ
た。By the way, this kind of pulley is used as a pulley for an oil pump of an automobile, etc.
It is suitable for efficiently transmitting high-speed rotation to the belt 110, and the poly-V belt 110 is often wound with high tension. Therefore, during the rotation of the pulley, the poly V
The belt tension is transmitted to the welding point 107, etc. through the flat bottom wall 102, and a large offset load is repeatedly applied to the welding point 107, thereby causing a phenomenon that the welded portion is easily broken and adversely affects the rotation transmission. I was worried about doing it.
他方、この種のプーリにあっては、ボス105の取付鍔
部106が溶接される底壁取付部102aが前記周壁部100の軸
方向外方に配備されたものが要求されることがあり、そ
のように底壁取付部102aが前記周壁部100の軸方向外方
に配備されたものでは、周壁部100を例えばオイルポン
プのハウジングに被さる形態で配備することによって、
プーリの設置スペースにそのハウジングの周囲のスペー
スを活用できるようになるという利点がある。On the other hand, in this type of pulley, it may be required that the bottom wall mounting portion 102a to which the mounting flange portion 106 of the boss 105 is welded is disposed outside the peripheral wall portion 100 in the axial direction, In the case where the bottom wall mounting portion 102a is disposed axially outward of the peripheral wall portion 100 as described above, by disposing the peripheral wall portion 100 in a form to cover, for example, a housing of an oil pump,
There is an advantage that the space around the housing can be utilized for the installation space of the pulley.
本考案は以上の事情に鑑みてなされたもので、ボスの
取付鍔部が溶接される底壁取付部が前記周壁部の軸方向
外方に配備することが要求されるプーリにおいて、その
プーリの底壁部の形状を工夫することによってその底壁
部にきわめて効果的な荷重吸収機能を具備させ、ボスの
取付鍔部と底壁取付部との溶接個所に繰り返し加わる偏
荷重をできるだけ小さくすることが可能な板金製プーリ
を提供することを目的とする。The present invention has been made in view of the above circumstances, and in a pulley in which a bottom wall mounting portion to which a mounting flange portion of a boss is welded is required to be disposed axially outward of the peripheral wall portion, By devising the shape of the bottom wall, the bottom wall is provided with an extremely effective load absorbing function, and the unbalanced load repeatedly applied to the welding point between the boss mounting flange and the bottom wall mounting is minimized. It is an object of the present invention to provide a sheet-metal pulley capable of performing the above-mentioned.
本考案の板金製プーリは、上記目的を達成するため
に、カップ状で、かつ、その筒状の周壁部の外周にベル
ト当接部が形成され、その底壁部の中央に形成された貫
通孔に回転軸を挿通させる筒状のボスが嵌入されている
とともに、そのボスの外面に形成された取付鍔部が前記
貫通孔の周りの底壁取付部に溶接にて取り付けられてい
る板金製プーリにおいて、前記底壁部の周壁部寄りの位
置に、周壁部の軸心と同心をなして軸方向内方に90度ま
たはほぼ90度折れ曲がる環状の第１屈曲部を形成し、そ
の第１屈曲部の先端部に連続する第２屈曲部が、環状で
かつ断面が円弧状でありその底部が前記周壁部の軸方向
中央部の高さに位置する湾曲部を有するとともにその湾
曲部の先端部から前記周壁部の軸方向外方に延び出して
前記底壁取付部に連なる環状の傾斜部を有することを特
徴とする。In order to achieve the above object, the sheet metal pulley of the present invention is formed in a cup shape, and a belt contact portion is formed on the outer periphery of the cylindrical peripheral wall portion, and a through hole formed in the center of the bottom wall portion. A cylindrical boss through which the rotating shaft is inserted is inserted into the hole, and a mounting flange formed on the outer surface of the boss is welded to a bottom wall mounting portion around the through hole. In the pulley, an annular first bent portion is formed at a position near the peripheral wall portion of the bottom wall portion so as to be concentric with the axis of the peripheral wall portion and bend inward in the axial direction by 90 degrees or approximately 90 degrees. A second bent portion that is continuous with a tip portion of the bent portion has an annular shape and an arc-shaped cross section, and has a bent portion whose bottom is located at the height of the central portion in the axial direction of the peripheral wall portion, and the tip of the bent portion. Extending from the portion in the axial direction of the peripheral wall portion and continuing to the bottom wall mounting portion It is characterized by having an annular inclined portion.
本考案の板金製プーリは、底壁部に、周壁部と同心で
その軸方向内方に折れ曲がる第１屈曲部が形成されてお
り、その第１屈曲部に連続して第２屈曲部が形成され、
その第２屈曲部が、断面が円弧状でその底部が前記周壁
部の軸方向中央部の高さに位置する湾曲部とその湾曲部
から延び出してボスが取り付けられる底壁取付部に連な
る環状の傾斜部とを有しているので、第２屈曲部の湾曲
部の底部が周壁部に掛けたベルトの中心と一致もしくは
ほぼ一致して、ベルトからの荷重に起因する曲げモーメ
ントが第１屈曲部や第２屈曲部の湾曲部の全体により発
揮される撓み性によりうまく吸収されるようになって、
その荷重が特定箇所に集中的に作用するといった現象が
起こらないので、それだけボスの取付鍔部と底壁取付部
との溶接個所に加わる偏荷重が軽減されるばかりでな
く、第２屈曲部の湾曲部についてもそれが短期間に疲労
破壊してしまうことを有効に防止することができる。In the sheet metal pulley of the present invention, a first bent portion is formed on the bottom wall portion and bent inward in the axial direction concentrically with the peripheral wall portion, and a second bent portion is formed continuously to the first bent portion. And
The second bent portion has an arc-shaped cross section and has a bottom portion at a height of a central portion in the axial direction of the peripheral wall portion and an annular portion extending from the curved portion and connected to a bottom wall mounting portion to which a boss is mounted. And the bottom of the curved portion of the second bent portion coincides or almost coincides with the center of the belt hung on the peripheral wall portion, so that the bending moment caused by the load from the belt becomes the first bent portion. The part and the bending part of the second bent part become better absorbed by the flexibility exhibited by the whole,
Since the phenomenon that the load acts intensively on a specific portion does not occur, not only the uneven load applied to the welding portion between the mounting flange portion of the boss and the bottom wall mounting portion is reduced, but also the second bending portion It is also possible to effectively prevent the curved portion from being fatigued and destroyed in a short period of time.
それにもかかわらず、第２屈曲部の傾斜部が、その第
２屈曲部の先端部から前記周壁部の軸方向外方に延び出
して前記底壁取付部に連なっているので、ボスの取付鍔
部が溶接される底壁取付部が前記周壁部の軸方向外方に
配備された構造になるので、ボスの取付鍔部が溶接され
る底壁取付部が前記周壁部の軸方向外方に配備すること
が要求されるプーリについて、ボスの取付鍔部と底壁取
付部との溶接個所に繰り返し加わる偏荷重をできるだけ
小さくすることが可能な板金製プーリを提供することが
できるようになる。Nevertheless, since the inclined portion of the second bent portion extends axially outward of the peripheral wall portion from the distal end portion of the second bent portion and continues to the bottom wall mounting portion, the mounting flange of the boss is provided. Since the bottom wall mounting portion to which the portion is welded is disposed outside the peripheral wall portion in the axial direction, the bottom wall mounting portion to which the mounting flange portion of the boss is welded is disposed axially outward of the peripheral wall portion. With respect to the pulley that is required to be deployed, it is possible to provide a sheet metal pulley that can minimize the unbalanced load that is repeatedly applied to the welding portion between the mounting flange portion of the boss and the bottom wall mounting portion.
その上、周壁部の軸心と同心をなして軸方向内方に90
度またはほぼ90度折れ曲がった第１屈曲部の内側すなわ
ちボスが取り付けられる底壁取付部側に第２屈曲部の傾
斜部が配備された構造になっているという構成により、
次のような作用が発揮される。In addition, it is concentric with the axis of the peripheral wall and
With the configuration in which the inclined portion of the second bent portion is provided inside the first bent portion bent at an angle of about 90 degrees, that is, on the bottom wall mounting portion side where the boss is mounted,
The following effects are exhibited.
すなわち、仮に周壁部の軸心と同心をなして軸方向内
方に90度またはほぼ90度折れ曲がった第１屈曲部が前記
底壁取付部側に配備され、その第１屈曲部の外側に、傾
斜部を有する第２屈曲部が配備されてその傾斜部が周壁
部に連なるように構成した場合に比べて、前記底壁取付
部の裏面側のスペースが広くなり、そのように前記底壁
取付部の裏面側のスペースが広くなっていると、例えば
冒頭に記載したようにオイルポンプのハウジングに被さ
る形態で当該プーリを配備するようなときにそのハウジ
ングを無理なく前記底壁取付部の裏面側のスペースに取
り付けられるようになる。That is, a first bent portion which is temporarily concentric with the axis of the peripheral wall portion and bent inward in the axial direction by 90 degrees or substantially 90 degrees is provided on the bottom wall mounting portion side, and outside the first bent portion, Compared to a case where a second bent portion having an inclined portion is provided and the inclined portion is connected to the peripheral wall portion, the space on the back surface side of the bottom wall attaching portion is widened, and thus the bottom wall attaching portion is provided. If the space on the back side of the section is widened, for example, when the pulley is arranged in a form to cover the housing of the oil pump as described at the beginning, the housing is easily placed on the back side of the bottom wall mounting section. Can be attached to the space.
第１図は本考案の実施例による板金製プーリの断面図
である。同図のプーリは薄い板金素材に絞り加工や転造
加工を施すことにより製作されたプーリ本体１にボス２
を固着することによって製作されている。FIG. 1 is a sectional view of a sheet metal pulley according to an embodiment of the present invention. The pulley shown in the figure is provided with a boss 2 on a pulley body 1 manufactured by subjecting a thin sheet metal material to drawing or rolling.
It is manufactured by fixing
プーリ本体１は筒状の周壁部11と底壁部12とを一体に
有するカップ状に形成されていて、周壁部11の外周に掛
けられるポリＶベルト（図示せず）と当接係合させるた
めの複数条のＶ溝よりなるベルト当接部13が形成されて
いる一方、底壁部12には中央に貫通孔14と貫通孔14の周
りの平らな底壁取付部15とが形成され、外周部に平坦部
16が形成されている。また、底壁部12の周壁部寄りの位
置、すなわち前記底壁取付部15と平坦部16との間に環状
の第１屈曲部17と湾曲部18aを有する環状の第２屈曲部1
8とにより構成される環状溝19が形成されている。第１
屈曲部17は前記平坦部16に湾曲部17aを介して滑らかに
連なり、しかも周壁部11の軸心と同心をなして軸方向に
90度またはほぼ90度折れ曲がっている。また、第２屈曲
部18の湾曲部18aは断面が円弧状をなし、第１屈曲部17
の先端部に基部18a1がつながっているもので、その底部
18a2が周壁部11の軸方向中央部の高さに位置するように
形成されている。また、第２屈曲部18は湾曲部18aの先
端部から前記底壁取付部15に向かう傾斜部18bを有し、
この傾斜部18bが前記周壁部１の軸方向外方に延び出し
て前記底壁取付部15に滑らかに連なっている。The pulley body 1 is formed in a cup shape integrally having a cylindrical peripheral wall portion 11 and a bottom wall portion 12, and is brought into contact with and engaged with a poly V belt (not shown) hung on the outer periphery of the peripheral wall portion 11. A belt contact portion 13 formed of a plurality of V-grooves is formed, while a bottom wall 12 is formed with a through hole 14 and a flat bottom wall mounting portion 15 around the through hole 14 in the center. , Flat on outer periphery
16 are formed. Also, a position near the peripheral wall of the bottom wall portion 12, that is, an annular second bent portion 1 having an annular first bent portion 17 and a curved portion 18a between the bottom wall mounting portion 15 and the flat portion 16 is provided.
8, an annular groove 19 is formed. First
The bent portion 17 is smoothly connected to the flat portion 16 via a curved portion 17a, and is concentric with the axis of the peripheral wall portion 11 in the axial direction.
It is bent 90 degrees or almost 90 degrees. The curved portion 18a of the second bent portion 18 has an arc-shaped cross section,
The base 18a 1 is connected to the tip of
18a 2 is formed so as to be located at the height of the central portion in the axial direction of the peripheral wall portion 11. Further, the second bent portion 18 has an inclined portion 18b directed from the distal end portion of the curved portion 18a toward the bottom wall mounting portion 15,
The inclined portion 18b extends outward in the axial direction of the peripheral wall portion 1 and smoothly connects to the bottom wall mounting portion 15.
ボス２は筒状のボス本体21の外面に取付鍔部22を一体
に形成したもので、ボス本体21が前記貫通孔14に嵌入さ
れた状態で、取付鍔部22が底壁取付部15の内面にリング
状のプロジェクション溶接で強固かつ確実に固着されて
いる。３はその溶接個所を示している。なお、ボス２の
取付鍔部22は底壁取付部15の外面にリング状のプロジェ
クション溶接が施される場合もあり、また底壁取付部15
の内面または外面にボス２の取付鍔部22の端部が第４図
の従来の如くCO2溶接される場合もある。また、このボ
ス２には回転軸（図示せず）が挿通される。The boss 2 is formed by integrally forming a mounting flange portion 22 on the outer surface of a cylindrical boss main body 21. When the boss main body 21 is fitted into the through hole 14, the mounting flange portion 22 is formed on the bottom wall mounting portion 15. It is firmly and securely fixed to the inner surface by ring-shaped projection welding. Reference numeral 3 indicates the welding location. Note that the mounting flange 22 of the boss 2 may be subjected to ring-shaped projection welding on the outer surface of the bottom wall mounting portion 15.
When the end portion of the mounting flange portion 22 to the inner or outer surface of the boss 2 of the conventional as CO 2 welding of FIG. 4 also. A rotary shaft (not shown) is inserted through the boss 2.
以上の構成によると、周壁部11に巻き付けられたポリ
Ｖベルト（不図示）に大きなテンションが付与されてい
る場合、回転によりプーリに加わる荷重が前記第１屈曲
部17と第２屈曲部の湾曲部18aとの撓み性により効果的
に吸収されるため、溶接個所に加わる偏荷重がそれだけ
軽減される。特に、第１屈曲部17が周壁部11の軸心と同
心をなして軸方向に90度またはほぼ90度折れ曲がってい
ることにより第１屈曲部17に無理のない大きな撓み性が
付与され、荷重吸収作用が効果的に発揮される。したが
って、ボス２の取付鍔部22が底壁取付部15の内面または
外面に溶接されている場合でも、その溶接個所に偏荷重
による悪影響が及びにくくなる。According to the above configuration, when a large tension is applied to the poly-V belt (not shown) wound around the peripheral wall portion 11, the load applied to the pulley by the rotation causes the bending of the first bent portion 17 and the second bent portion. Since it is effectively absorbed by the flexibility with the portion 18a, the unbalanced load applied to the welding location is reduced accordingly. In particular, since the first bent portion 17 is bent 90 degrees or almost 90 degrees in the axial direction concentrically with the axis of the peripheral wall portion 11, the first bent portion 17 is provided with a reasonably large flexibility, and The absorption function is effectively exerted. Therefore, even when the mounting flange portion 22 of the boss 2 is welded to the inner surface or the outer surface of the bottom wall mounting portion 15, an adverse load due to the unbalanced load is less likely to occur at the welding location.
また、底壁取付部15が周壁部１の軸方向外方に配備さ
れた構造であるので、ボス２の取付鍔部22が溶接される
底壁取付部15が前記周壁部１の軸方向外方に配備したい
という要求にも対処できるのみならず、第１屈曲部17の
内側に第２屈曲部18の傾斜部18bが配備された構造にな
っているので、底壁取付部15の裏面側のスペースが広く
なって、例えばオイルポンプのハウジングに被さる形態
で当該プーリを配備するようなときにそのハウジングを
無理なく前記底壁取付部15の裏面側のスペースに取り付
けられるようになるという利点がある。Further, since the bottom wall mounting portion 15 has a structure disposed outside the peripheral wall portion 1 in the axial direction, the bottom wall mounting portion 15 to which the mounting flange portion 22 of the boss 2 is welded is located outside the peripheral wall portion 1 in the axial direction. Not only can it cope with the need to dispose it on the side, but also the inclined portion 18b of the second bent portion 18 is disposed inside the first bent portion 17, so that the back side of the bottom wall mounting portion 15 Has an advantage that when the pulley is arranged in a form to cover the housing of the oil pump, for example, the housing can be easily attached to the space on the back surface side of the bottom wall attaching portion 15. is there.
本考案は周壁部11に複数のＶ溝よりなるベルト当接部
13が形成されるが、板金製プーリに限らず、Ｖベルトと
当接係合させるためのＶ溝形ベルト当接部が形成される
板金製プーリ、あるいは第２図、第３図に示すように断
面コ字状の溝もしくは平坦面よりなるベルト当接部1
3′,13″が形成される板金製プーリ（背面プーリ）にも
適用できることは勿論である。The present invention relates to a belt contact portion comprising a plurality of V grooves on the peripheral wall portion 11.
13 is formed, but not limited to a sheet metal pulley, a sheet metal pulley in which a V-groove belt contact portion for contacting engagement with a V belt is formed, or as shown in FIG. 2 and FIG. Belt contact part 1 consisting of a U-shaped groove or flat surface
Needless to say, the present invention can be applied to a sheet metal pulley (back pulley) on which 3 ', 13 "is formed.
以上説明したように本考案によれば、ベルトからの荷
重が特定箇所に集中的に作用するといった現象が起こら
なくなってボスの取付鍔部と底壁取付部との溶接個所に
加わる偏荷重が軽減され、同時に、第２屈曲部の湾曲部
の短期間の疲労破壊が有効に防止される。As described above, according to the present invention, the phenomenon that the load from the belt concentrates on a specific portion does not occur, and the uneven load applied to the welding portion between the mounting flange portion of the boss and the bottom wall mounting portion is reduced. At the same time, short-term fatigue fracture of the curved portion of the second bent portion is effectively prevented.
それにもかかわらず、ボスの取付鍔部が溶接される底
壁取付部が前記周壁部の軸方向外方に配備された構造に
なっており、しかも、周壁部の軸心と同心をなして軸方
向内方に90度またはほぼ90度折れ曲がった第１屈曲部の
内側に第２屈曲部の傾斜部が配備された構造になってい
るので、ボスの取付鍔部が溶接される底壁取付部を前記
周壁部の軸方向外方に配備することが要求されるプーリ
について、ボスの取付鍔部と底壁取付部との溶接個所に
繰り返し加わる偏荷重をできるだけ小さくすることが可
能になると共に、前記底壁取付部の裏面側のスペースが
広く確保されて例えばオイルポンプのハウジングを無理
なくそのスペースに取り付けることができるようになる
という利点がある。Nevertheless, the bottom wall mounting portion to which the mounting flange of the boss is welded has a structure in which the bottom wall mounting portion is disposed axially outward of the peripheral wall portion, and furthermore, the shaft is concentric with the axis of the peripheral wall portion. Since the inclined portion of the second bent portion is provided inside the first bent portion bent 90 degrees or almost 90 degrees inward in the direction, the bottom wall mounting portion to which the mounting flange portion of the boss is welded is provided. With respect to the pulley that is required to be disposed axially outward of the peripheral wall portion, it is possible to minimize the unbalanced load repeatedly applied to the welding portion between the mounting flange portion of the boss and the bottom wall mounting portion, There is an advantage that a large space on the back side of the bottom wall mounting portion is secured, and for example, the housing of the oil pump can be easily mounted in the space.
第１図は本考案を板金製ポリプーリに適用した実施例の
断面図、第２図および第３図は本考案を板金製背面プー
リに適用した実施例の断面図、第４図は従来の板金製プ
ーリの断面図である。 １…プーリ本体、２…ボス、３…固着個所、11…周壁
部、12…底壁部、13,13′,13″…ベルト当接部、14…貫
通孔、15…底壁取付部、17…第１屈曲部、18…第２屈曲
部、18a…湾曲部、18a1…湾曲部の底部、22…取付鍔
部。FIG. 1 is a sectional view of an embodiment in which the present invention is applied to a sheet metal polypulley, FIGS. 2 and 3 are sectional views of an embodiment in which the present invention is applied to a sheet metal rear pulley, and FIG. 4 is a conventional sheet metal. It is sectional drawing of a pulley made from a resin. DESCRIPTION OF SYMBOLS 1 ... Pulley main body, 2 ... Boss, 3 ... Fixed part, 11 ... Peripheral wall part, 12 ... Bottom wall part, 13, 13 ', 13 "... Belt contact part, 14 ... Through hole, 15 ... Bottom wall mounting part, 17: first bent portion, 18: second bent portion, 18a: curved portion, 18a 1 : bottom portion of the curved portion, 22: mounting flange portion.
Claims (1)
（１）の外周にベルト当接部（13）が形成され、その底
壁部（12）の中央に形成された貫通孔（14）に回転軸を
挿通させる筒状のボス（２）が嵌入されているととも
に、そのボス（２）の外面に形成された取付鍔部（22）
が前記貫通孔（14）の周りの底壁取付部（15）に溶接に
て取り付けられている板金製プーリにおいて、 前記底壁部（12）の周壁部（１）寄りの位置に、周壁部
（１）の軸心と同心をなして軸方向内方に90度またはほ
ぼ90度折れ曲がる環状の第１屈曲部（17）を形成し、そ
の第１屈曲部（17）の先端部に連続する第２屈曲部（1
8）が、環状でかつ断面が円弧状でありその底部（18
a2）が前記周壁部（１）の軸方向中央部の高さに位置す
る湾曲部（18a）を有するとともにその湾曲部（18a）の
先端部から前記周壁部（１）の軸方向外方に延び出して
前記底壁取付部（15）に連なる環状の傾斜部（18b）を
有することを特徴とする板金製プーリ。1. A belt-shaped contact portion (13) is formed on the outer periphery of a cylindrical peripheral wall portion (1) in the shape of a cup, and a through-hole formed in the center of the bottom wall portion (12). A cylindrical boss (2) through which the rotary shaft is inserted is inserted into the boss (14), and a mounting flange (22) formed on the outer surface of the boss (2).
Is attached to the bottom wall mounting portion (15) around the through hole (14) by welding, wherein the peripheral wall portion (1) of the bottom wall portion (12) is located near the peripheral wall portion (1). An annular first bent portion (17) is formed concentrically with the axial center of (1) and bent 90 ° or almost 90 ° inward in the axial direction, and is connected to the tip of the first bent portion (17). The second bent part (1
8) is annular and its section is an arc, and its bottom (18
a 2 ) has a curved portion (18 a) positioned at the height of the central portion in the axial direction of the peripheral wall portion (1), and extends axially outward of the peripheral wall portion (1) from the tip of the curved portion (18 a). A sheet metal pulley having an annular inclined portion (18b) extending to the bottom wall connecting portion (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989002205U JP2523986Y2 (en) | 1989-01-12 | 1989-01-12 | Sheet metal pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989002205U JP2523986Y2 (en) | 1989-01-12 | 1989-01-12 | Sheet metal pulley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0293557U JPH0293557U (en) | 1990-07-25 |
| JP2523986Y2 true JP2523986Y2 (en) | 1997-01-29 |
Family
ID=31202775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989002205U Expired - Lifetime JP2523986Y2 (en) | 1989-01-12 | 1989-01-12 | Sheet metal pulley |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2523986Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015045384A (en) * | 2013-08-29 | 2015-03-12 | 日本精工株式会社 | Sheet-metal pulley |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2840862A1 (en) | 1977-11-02 | 1979-05-03 | Iao Industrie Riunite Spa | TIMING BELT PULLEY PRESSED FROM SHEET METAL |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57105463U (en) * | 1980-12-19 | 1982-06-29 |
-
1989
- 1989-01-12 JP JP1989002205U patent/JP2523986Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2840862A1 (en) | 1977-11-02 | 1979-05-03 | Iao Industrie Riunite Spa | TIMING BELT PULLEY PRESSED FROM SHEET METAL |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0293557U (en) | 1990-07-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |