JPS6143583B2 - - Google Patents
Info
- Publication number
- JPS6143583B2 JPS6143583B2 JP21271181A JP21271181A JPS6143583B2 JP S6143583 B2 JPS6143583 B2 JP S6143583B2 JP 21271181 A JP21271181 A JP 21271181A JP 21271181 A JP21271181 A JP 21271181A JP S6143583 B2 JPS6143583 B2 JP S6143583B2
- Authority
- JP
- Japan
- Prior art keywords
- belt
- integrally
- base
- metal plate
- teeth
- 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
- 239000002184 metal Substances 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 12
- 229920003002 synthetic resin Polymers 0.000 claims description 12
- 239000000057 synthetic resin Substances 0.000 claims description 12
- 230000000630 rising effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000000465 moulding Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H55/44—Sheet-metal pulleys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
- F16H2055/366—Pulleys with means providing resilience or vibration damping
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
Description
【発明の詳細な説明】
本発明は内燃機関の補機駆動用伝動機構等に用
いられる歯付き伝動ベルトプーリに関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a toothed power transmission belt pulley used in a power transmission mechanism for driving auxiliary equipment of an internal combustion engine.
従来伝動ベルトプーリは、その軽量化を図るた
めに鋼板等の金属板をプレス成形して構成した
り、また硬質合成樹脂材の一体成形により構成す
る手段が種々提案されているが、プレス成形の場
合には、きわめて単純な形状のものに限られ、た
とえば歯付きベルト用の多数の歯をもつ多段プー
リの如き複雑な形状をもつものは、そのプレス成
形が事実上困難であり、また合成樹脂材による一
体成形の場合は大きな負荷変動のかかる軸孔周辺
部の耐衝撃性に難があり、何れの場合も実用化に
至つていない。 Conventionally, various methods have been proposed for power transmission belt pulleys, such as press-forming metal plates such as steel plates or integrally molding hard synthetic resin materials in order to reduce their weight. In some cases, the shape is limited to extremely simple shapes; for example, if the shape is complex, such as a multistage pulley with a large number of teeth for a toothed belt, it is virtually difficult to press-form it, and synthetic resin In the case of integrally molded materials, there is a problem in the impact resistance of the area around the shaft hole, which is subject to large load fluctuations, and neither case has been put to practical use.
本発明はかかる実情にかんがみて発明されたも
ので、金属板のプレス成形と合成樹脂材の一体成
形とを組み合わせて簡単に製作加工し得るきわめ
て軽量且つ高強度の歯付き伝動ベルトプーリを提
供することを目的とする。 The present invention was invented in view of the above circumstances, and provides an extremely lightweight and high-strength toothed power transmission belt pulley that can be easily manufactured by combining press molding of a metal plate and integral molding of a synthetic resin material. The purpose is to
そしてかかる目的達成のため本発明は、金属板
製プーリ主体の外周部に、円筒部とその円筒部の
両側に一体に起立される内、外側立上り部とを有
する断面略Ｕ字型の金属板製基台を一体に支持
し、その基台の外周に、歯付きベルトの歯と係合
する多数の歯を形成した、耐摩性合成樹脂材のみ
よりなるベルト懸回部を一体に結合し、前記内、
外側立上り部はベルト懸回部の歯高よりも高く
し、さらに前記円筒部に透孔を穿設すると共に、
該透孔に係合する係合凸部を前記ベルト懸回部の
内周面に一体に突設したことを特徴とする。 In order to achieve this object, the present invention provides a metal plate having a substantially U-shaped cross section, which has a cylindrical part and inner and outer rising parts integrally erected on both sides of the cylindrical part, on the outer periphery of a main pulley made of a metal plate. A belt suspension part made only of a wear-resistant synthetic resin material and having a large number of teeth that engage with the teeth of a toothed belt is integrally connected to the outer periphery of the base. Of the above,
The outer rising portion is made higher than the tooth height of the belt hanging portion, and furthermore, a through hole is bored in the cylindrical portion, and
The present invention is characterized in that an engaging convex portion that engages with the through hole is integrally provided on the inner circumferential surface of the belt hanging portion.
以下、図面により本発明の一実施例について説
明する。 An embodiment of the present invention will be described below with reference to the drawings.
軸孔３を穿設したボス２には、複数個の取付ボ
ルト４………によりプーリ主体１が固着される。
このプーリ主体１は、鋼板等の金属板により形成
され、その外周部に大径のＶ溝５ａを有する大径
部１ａおよび外周に小径のＶ溝５ｂを有する小径
部１ｂのデイクス部同士を溶接等により一体結合
して構成される。 A pulley main body 1 is fixed to a boss 2 having a shaft hole 3 formed therein by a plurality of mounting bolts 4.
This pulley main body 1 is formed of a metal plate such as a steel plate, and has a large diameter part 1a having a large diameter V groove 5a on the outer periphery and a small diameter part 1b having a small diameter V groove 5b on the outer periphery.The deix parts are welded together. etc., and are integrally connected.
プーリ主体１の大径部１ａ外周には、円筒部６
ａとその両側より一体に起立される内、外側立上
り部６ｂ，６ｃとよりなる断面略Ｕ字型をなす金
属板製の環状の基台６が一体に形成されており、
この基台６の外周面に耐摩性合成樹脂のみで形成
された環状をなすベルト懸回部７が一体結合され
る。ベルト懸回部７の外周面にはその全周に歯付
きベルトの歯と係合し得る多数の歯８，８………
が形成され、前記内、外側立上り部６ｂ，６ｃの
高さは前記歯８の歯高よりも高く形成され、比較
的脆弱な歯８を衝撃などより保護するようになつ
ている。 A cylindrical portion 6 is provided on the outer periphery of the large diameter portion 1a of the pulley main body 1.
An annular base 6 made of a metal plate and having a substantially U-shaped cross section is formed integrally with a and outer rising parts 6b and 6c, which stand upright from both sides thereof.
An annular belt suspension portion 7 made of only wear-resistant synthetic resin is integrally connected to the outer peripheral surface of the base 6. The outer circumferential surface of the belt hanging portion 7 has a large number of teeth 8, 8 around the entire circumference that can engage with the teeth of the toothed belt.
The inner and outer rising portions 6b and 6c are formed higher than the tooth height of the tooth 8, so as to protect the relatively fragile tooth 8 from impacts.
前記合成樹脂製ベルト懸回部７の基台６への結
合手段としては接着、焼付、または射出成形結合
等どのような手段でもよい。また基台６の円筒部
６ａには透孔９が形成され、この透孔９に、ベル
ト懸回部７の内周面に一体に突設した係合凸部１
０が係合される。さらにその他の結合強度を高め
る手段として、基台６とベルト懸回部７の結合面
にローレツト等の凹凸面を形成するようにしても
よい。 The synthetic resin belt suspension section 7 may be connected to the base 6 by any means such as adhesive, baking, or injection molding. Further, a through hole 9 is formed in the cylindrical portion 6a of the base 6, and an engaging convex portion 1 integrally provided in the through hole 9 projects on the inner circumferential surface of the belt hanging portion 7.
0 is engaged. Furthermore, as another means for increasing the bonding strength, an uneven surface such as a knurl may be formed on the bonding surface between the base 6 and the belt suspension portion 7.
以上のように本発明によれば、金属板製プーリ
主体１の外周部に、円筒部６ａとその円筒部６ａ
の両側に一体に起立される内、外側立上り部６
ｂ，６ｃとを有する断面略Ｕ字型の金属板製基台
６を一体に支持し、その基台６の外周に、歯付き
ベルトの歯と係合する多数の歯８を形成した、耐
摩性合成樹脂材のみよりなるベルト懸回部７を一
体に結合したので、ベルト懸回部７は多数の歯８
を有する複数形状であつても合成樹脂材の単なる
一体成形によつて、また該ベルト懸回部７を支持
する基台６は断面略Ｕ字型であつても金属板の単
なるプレス成形によつてそれぞれ簡単に形成する
ことができ、さらに該基台６を支持するプーリ主
体１も金属板の単なるプレス成形によつて所望形
状に簡単に形成することができ、従つて軽量な歯
付き伝動ベルトプーリを簡単容易に且つ安価に製
作することができる。しかも金属板製プーリ主体
１には軸孔周辺部の大きな負荷変動に対しても十
分対抗し得る強度を保有させることができ、また
同じく金属板製基台６にも、合成樹脂製ベルト懸
回部７を伝動ベルトの張力や伝達トルクに抗して
強固に支持し得るだけの強度を保有させることが
できるから、プーリ全体を合成樹脂材で一体成形
したものに比べプーリの全体的強度を著しく高め
ることができる。 As described above, according to the present invention, the cylindrical portion 6a and the cylindrical portion 6a are provided on the outer peripheral portion of the pulley main body 1 made of a metal plate.
The inner and outer rising portions 6 are integrally erected on both sides of the
A wear-resistant belt that integrally supports a base 6 made of a metal plate having a substantially U-shaped cross section and has a large number of teeth 8 formed on the outer periphery of the base 6 to engage with the teeth of a toothed belt. Since the belt suspension part 7 made of only a synthetic resin material is integrally connected, the belt suspension part 7 has a large number of teeth 8.
Even if the base 6 that supports the belt suspension part 7 has a substantially U-shaped cross section, it can be formed by simply press-forming a metal plate even if it has a plurality of shapes having a plurality of shapes. Furthermore, the pulley main body 1 supporting the base 6 can also be easily formed into a desired shape by simply press-forming a metal plate. Therefore, the toothed power transmission belt is lightweight. A pulley can be easily manufactured at low cost. In addition, the pulley main body 1 made of a metal plate has enough strength to withstand large load fluctuations around the shaft hole, and the base 6 also made of a metal plate has a synthetic resin belt hanging around it. Since it has enough strength to firmly support the part 7 against the tension and transmission torque of the transmission belt, the overall strength of the pulley is significantly increased compared to a pulley that is integrally molded from synthetic resin. can be increased.
また前記基台６の内、外側立上り部６ｂ，６ｃ
はベルト懸回部７の歯高よりも高くしたので、該
ベルト懸回部７の比較的強度の低い歯８を保護し
てその損傷を防止することができ、しかも歯付き
伝動ベルトの走行を正確に案内することができ
る。 In addition, the outer rising parts 6b and 6c of the base 6
is made higher than the tooth height of the belt suspension part 7, so that the relatively low-strength teeth 8 of the belt suspension part 7 can be protected and prevented from being damaged, and the running of the toothed power transmission belt can be prevented. We can guide you accurately.
さらに前記基台６の円筒部６ａに透孔９を穿設
すると共に、該透孔９に係合する係合凸部１０を
前記ベルト懸回部７の内周面に一体に突設したの
で、上記透孔９と係合凸部１０との結合により円
筒部６ａとベルト懸回部７とを回転方向に極めて
強固に連結することができ、従つてそれら６ａ，
７が金属板と合成樹脂材により別々に成形されて
もベルト懸回部７が円筒部６ａに対し滑るおそれ
がなく、伝動プーリの伝動効率を高めることがで
きる。しかも前記透孔９は金属板製基台６のプレ
ス成形時に簡単に打ち抜き加工することができ、
また前記係合凸部１０は合成樹脂製ベルト懸回部
７の成形と同時に簡単に一体成形することができ
るから、それら透孔９及び係合凸部１０の特設に
よるもコストアツプは僅かである。 Furthermore, a through hole 9 is bored in the cylindrical portion 6a of the base 6, and an engaging convex portion 10 that engages with the through hole 9 is integrally provided on the inner circumferential surface of the belt hanging portion 7. , the cylindrical portion 6a and the belt suspension portion 7 can be extremely firmly connected in the rotational direction by the connection between the through hole 9 and the engaging convex portion 10.
Even if belt 7 is molded separately from a metal plate and a synthetic resin material, there is no risk that belt suspension part 7 will slip with respect to cylindrical part 6a, and the transmission efficiency of the transmission pulley can be improved. Moreover, the through hole 9 can be easily punched out during press molding of the metal plate base 6,
Further, since the engaging convex portion 10 can be easily integrally molded at the same time as the synthetic resin belt suspension portion 7, the cost increase due to special provision of the through hole 9 and the engaging convex portion 10 is small.
第１図は本発明歯付き伝動ベルトプーリの縦断
面図、第２図は第１図の−線部分断面図であ
る。
１……プーリ主体、６……基台、６ａ……円筒
部、６ｂ，６ｃ……内、外側立上り部、７……ベ
ルト懸回部、８……歯、９……透孔、１０……係
合凸部。
FIG. 1 is a longitudinal sectional view of the toothed power transmission belt pulley of the present invention, and FIG. 2 is a partial sectional view taken along the line -- in FIG. DESCRIPTION OF SYMBOLS 1...Pulley main body, 6...Base, 6a...Cylindrical part, 6b, 6c...Inner and outer rising parts, 7...Belt suspension part, 8...Teeth, 9...Through hole, 10... ...Engagement convex portion.
Claims (1)
ａとその円筒部６ａの両側に一体に起立される
内、外側立上り部６ｂ，６ｃとを有する断面略Ｕ
字型の金属板製基台６を一体に支持し、その基台
６の外周に、歯付きベルトの歯と係合する多数の
歯８を形成した、耐摩性合成樹脂材のみよりなる
ベルト懸回部７を一体に結合し、前記内、外側立
上り部６ｂ，６ｃはベルト懸回部７の歯高よりも
高くし、さらに前記円筒部６ａに透孔９を穿設す
ると共に、該透孔９に係合する係合凸部１０を前
記ベルト懸回部７の内周面に一体に突設してなる
歯付き伝動ベルトプーリ。1 A cylindrical part 6 is attached to the outer periphery of the metal plate pulley main body 1.
a, and inner and outer rising portions 6b and 6c that stand up integrally on both sides of the cylindrical portion 6a.
A belt suspension made of only a wear-resistant synthetic resin material, which integrally supports a base 6 made of a metal plate in the shape of a letter, and has a large number of teeth 8 formed on the outer periphery of the base 6 to engage with the teeth of a toothed belt. The rotating part 7 is integrally connected, the inner and outer rising parts 6b and 6c are made higher than the tooth height of the belt hanging part 7, and a through hole 9 is bored in the cylindrical part 6a. A toothed power transmission belt pulley in which an engaging protrusion 10 that engages with the belt 9 is integrally provided on the inner circumferential surface of the belt suspension section 7.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21271181A JPS58109760A (en) | 1981-12-24 | 1981-12-24 | Toothed transmission belt pulley |
| GB08236714A GB2112898B (en) | 1981-12-24 | 1982-12-23 | Transmission belt pulley |
| US06/452,763 US4548592A (en) | 1981-12-24 | 1982-12-23 | Pulley construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21271181A JPS58109760A (en) | 1981-12-24 | 1981-12-24 | Toothed transmission belt pulley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58109760A JPS58109760A (en) | 1983-06-30 |
| JPS6143583B2 true JPS6143583B2 (en) | 1986-09-29 |
Family
ID=16627159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21271181A Granted JPS58109760A (en) | 1981-12-24 | 1981-12-24 | Toothed transmission belt pulley |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58109760A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009046517A1 (en) * | 2009-11-09 | 2011-05-12 | Robert Bosch Gmbh | Gearbox drive unit |
| CN102927244B (en) * | 2012-11-09 | 2015-05-06 | 金红叶纸业集团有限公司 | Transmission device and transmission wheel thereof |
-
1981
- 1981-12-24 JP JP21271181A patent/JPS58109760A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58109760A (en) | 1983-06-30 |
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