JPH0577651U - Belt for continuously variable transmission - Google Patents
Belt for continuously variable transmissionInfo
- Publication number
- JPH0577651U JPH0577651U JP2450892U JP2450892U JPH0577651U JP H0577651 U JPH0577651 U JP H0577651U JP 2450892 U JP2450892 U JP 2450892U JP 2450892 U JP2450892 U JP 2450892U JP H0577651 U JPH0577651 U JP H0577651U
- Authority
- JP
- Japan
- Prior art keywords
- belt
- block
- pulley
- continuously variable
- variable transmission
- 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
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 8
- 238000005452 bending Methods 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000694 effects Effects 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
- F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
- F16G5/00—V-belts, i.e. belts of tapered cross-section
- F16G5/16—V-belts, i.e. belts of tapered cross-section consisting of several parts
- F16G5/166—V-belts, i.e. belts of tapered cross-section consisting of several parts with non-metallic rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
Abstract
(57)【要約】
【目的】 無段変速機用のＶベルトの長手方向に対する
各ベルトブロックの剛性を最適にすることによって、各
ベルトブロックの端面が、プ−リ面で滑りを生じる度合
いを小さくし、スリップ音を少なくすることを目的とす
る。
【構成】 駆動プ−リと従動プ−リ間に掛けられるＶベ
ルトのブロック２の幅をｂとし、ブロック２の厚みをｔ
としたとき、ｔ／ｂを０．０４から０．２の範囲にする
ことにより、Ｖベルト１の長手方向に対する各ブロック
２の剛性がプ−リ面で滑りを生じにくい状態になり、ス
リップ音を小さくする。
(57) [Abstract] [Purpose] By optimizing the rigidity of each belt block with respect to the longitudinal direction of a V-belt for a continuously variable transmission, the degree to which the end surface of each belt block slips on the pulley surface is determined. The purpose is to make it smaller and to reduce slip noise. [Structure] The width of the block 2 of the V belt hung between the driving pulley and the driven pulley is b, and the thickness of the block 2 is t.
Then, by setting t / b in the range of 0.04 to 0.2, the rigidity of each block 2 in the longitudinal direction of the V-belt 1 becomes less likely to slip on the pulley surface, and the slip noise is reduced. To reduce.
Description
【０００１】[0001]
本考案は、無段変速機におけるＶベルトに係り、詳しくはＶベルトとプ−リ間 に発生するスリップ音を低減する無段変速機用ベルトに関する。 The present invention relates to a V-belt in a continuously variable transmission, and more particularly to a belt for a continuously variable transmission that reduces a slip noise generated between the V-belt and the pulley.
【０００２】[0002]
従来、無段変速機におけるＶベルトとして、図４、図５に示すようなものがあ る。尚、図４は無段変速機のプ−リに掛けられるＶベルト２０の一部破断斜視断 面図であり、図５はその側面図である。 図４、図５に示したＶベルト２０の各ブロック２１はアルミ製であり、それぞ れのブロック２１にはゴム製の張力帯２２が２条対称に装着されている。 Conventionally, as a V-belt in a continuously variable transmission, there is one as shown in FIGS. 4 and 5. 4. FIG. 4 is a partially cutaway perspective sectional view of the V-belt 20 that is hung on the pulley of the continuously variable transmission, and FIG. 5 is a side view thereof. Each block 21 of the V-belt 20 shown in FIG. 4 and FIG. 5 is made of aluminum, and a tension band 22 made of rubber is attached to each block 21 in a two-fold symmetrical manner.
【０００３】[0003]
しかしながら、上記従来の無段変速機におけるＶベルト２０の各ブロック２１ のブロック幅をｂ２とし、ブロックの厚みをｔ２としたとき、ｔ２／ｂ２が一般 に０．４以上であり、Ｖベルト２０の進行方向のブロック剛性が高すぎるためプ −リ巻き付け中の張力変化に対し、図６に示すように、各ブロック２１が進行方 向にせん断曲げを生じにくい構造になっていたため、各ブロック２１の端面とプ −リ面で滑りを生じてスリップ音を発生するという問題がある。 However, when the block width of each block 21 of the V-belt 20 in the above conventional continuously variable transmission is b2 and the block thickness is t2, t2 / b2 is generally 0.4 or more, and the V-belt 20 has Since the block rigidity in the advancing direction is too high, as shown in FIG. 6, each block 21 has a structure that is unlikely to cause shear bending in the advancing direction in response to a change in tension during pulley winding. There is a problem that a slip noise is generated by slipping between the end surface and the pulley surface.
【０００４】 そこで本考案では、Ｖベルトの長手方向に対する各ベルトブロックの剛性を最 適にすることによって、各ブロックの端面が、プ−リ面で滑りを生じる度合いを 小さくし、スリップ音を少なくすることを解決すべき技術的課題とするものであ る。Therefore, in the present invention, by optimizing the rigidity of each belt block in the longitudinal direction of the V-belt, the end surface of each block is less likely to slip on the pulley surface, and the slip noise is reduced. This is a technical issue to be solved.
【０００５】[0005]
上記課題解決のための技術的手段は、駆動プ−リと従動プ−リ間に掛けられる Ｖベルトのブロック幅をｂとし、ブロックの厚みをｔとしたとき、ｔ／ｂを０． ０４から０．２の範囲にすることである。 The technical means for solving the above-mentioned problems is that when the block width of the V-belt that is hung between the driving pulley and the driven pulley is b and the thickness of the block is t, t / b is 0. The range is from 04 to 0.2.
【０００６】[0006]
駆動プ−リと従動プ−リ間に掛けられるＶベルトのブロック幅をｂとし、ブロ ックの厚みをｔとしたとき、ｔ／ｂを０．０４から０．２の範囲にすることによ り、Ｖベルトの長手方向に対する各ベルトブロックの剛性が最適になり、各ベル トブロックの端面がプ−リ面で滑りを生じる度合いが小さくなって、スリップ音 が小さくなる。 When the block width of the V-belt hung between the drive pulley and the driven pulley is b and the thickness of the block is t, t / b should be in the range of 0.04 to 0.2. Therefore, the rigidity of each belt block with respect to the longitudinal direction of the V-belt is optimized, the degree to which the end surface of each belt block slips on the pulley surface is reduced, and the slip noise is reduced.
【０００７】[0007]
次に、本考案の一実施例について説明する。 図１は、図示していない駆動プ−リと従動プ−リ間に掛けられるＶベルト１の 構成を一部断面で示した斜視図であり、図２は側面図である。 図１、及び図２に示すように、Ｖベルト１はアルミニウム製の複数のブロック ２と、そのブロック２に装着されたゴム製の張力帯３とで構成されている。 上記各ブロック２の板厚ｔ１は前記従来のＶベルト２０の各ブロック２１の板 厚ｔ２より薄く形成されており、Ｖベルト１の長手方向にせん断曲げを生じさせ 易いように形成されている。但し、最大トルクを伝達する場合、ブロック２が疲 労破壊を生じさせないだけの最低限の剛性を持たせている。そして、各ブロック ２の板厚をｔ１、各ブロック２の厚みをｂ１とすると、ｔ１／ｂ１が０．０４か ら０．２の範囲にあれば、Ｖベルト１の長手方向にせん断曲げを生じさせ易いよ うに、且つ疲労破壊を生じさせないようになることが実験により確認された。 Next, an embodiment of the present invention will be described. FIG. 1 is a perspective view showing a partial cross-section of the structure of a V-belt 1 which is mounted between a drive pulley and a driven pulley (not shown), and FIG. 2 is a side view. As shown in FIGS. 1 and 2, the V-belt 1 is composed of a plurality of blocks 2 made of aluminum and a tension band 3 made of rubber attached to the blocks 2. The plate thickness t1 of each block 2 is formed to be smaller than the plate thickness t2 of each block 21 of the conventional V-belt 20 so as to easily cause shear bending in the longitudinal direction of the V-belt 1. However, when transmitting the maximum torque, the block 2 has a minimum rigidity that does not cause fatigue failure. When the plate thickness of each block 2 is t1 and the thickness of each block 2 is b1, if t1 / b1 is in the range of 0.04 to 0.2, shear bending occurs in the longitudinal direction of the V-belt 1. It was confirmed by an experiment that it is easy to prevent the fatigue damage from occurring.
【０００８】 上記のように構成されたＶベルト１の場合、ブロック２は図３に示すようにベ ルト進行方向に曲がり易くなっている。即ち、Ｖベルト１がプ−リ巻き付け中に 張力帯３の張力変化による張力帯３の伸び縮みによって、ブロック２はブロック ２の端面がプ−リ面との摩擦力で保持されているため撓みを生じる。 一方、前記従来のＶベルト２０のように、各ブロック２１の板厚ｔ２が厚く、 ベルト進行方向にせん断曲げが生じにくい場合、プ−リ巻き付け中に張力帯２２ の張力変化による張力帯２２の伸び縮みによって、ブロック２１はブロック２１ の端面がプ−リ面との摩擦力で保持されているにもかかわらず、張力帯２２の張 力が、その摩擦力を越えるためにプ−リとブロック２１間で滑りが生じる。In the V-belt 1 configured as described above, the block 2 is easily bent in the belt traveling direction as shown in FIG. That is, while the V-belt 1 is being wound around the pulley, the tension band 3 expands and contracts due to the change in tension of the tension band 3, so that the end face of the block 2 is held by the frictional force with the pulley face, and thus the block 2 bends. Cause On the other hand, when the plate thickness t2 of each block 21 is large and the shear bending is unlikely to occur in the belt advancing direction like the conventional V belt 20, the tension band 22 due to a change in tension of the tension band 22 during pulley winding is generated. Due to the expansion and contraction, although the end face of the block 21 is held by the frictional force with the pulley surface due to the expansion and contraction, the tension force of the tension band 22 exceeds the frictional force, so Sliding occurs between 21.
【０００９】 以上のように張力帯３の張力変化に対してブロック２がプ−リとの間で滑りを 生じるか否かはベルト進行方向のブロック２の剛性で決まり、ブロック２の剛性 が高い場合、ブロック２とプ−リとの間で滑りが生じ、スリップ音が発生する一 方、ブロック２の剛性が低い場合、張力帯３の張力変化に対してブロック２がせ ん断曲げを生じることで、ブロック２とプ−リとの間で滑りを生じさせないこと が可能になる。即ち、スリップ音の減少のためには前記ｔ１／ｂ１を０．０４か ら０．２の範囲にすることが好ましい。As described above, the rigidity of the block 2 in the belt traveling direction determines whether the block 2 slides with the pulley in response to the change in the tension of the tension band 3, and the rigidity of the block 2 is high. In this case, slippage occurs between the block 2 and the pulley, and slip noise is generated. On the other hand, when the rigidity of the block 2 is low, the block 2 bends and breaks in response to changes in the tension of the tension band 3. This makes it possible to prevent slippage between the block 2 and the pulley. That is, in order to reduce the slip noise, it is preferable to set t1 / b1 in the range of 0.04 to 0.2.
【００１０】[0010]
以上のように本考案によれば、駆動プ−リと従動プ−リ間に掛けられるＶベル トのブロック幅をｂとし、ブロックの厚みをｔとした時、ｔ／ｂを０．０４から ０．２の範囲としたことにより、各ブロックの端面がプ−リ面で滑りを生じる度 合いが小さくなり、スリップ音を少なくすることができるという効果がある。 As described above, according to the present invention, when the block width of the V belt applied between the drive pulley and the driven pulley is b and the block thickness is t, t / b is 0.04 to 0.04. By setting the range to 0.2, the degree to which the end surface of each block slips on the pulley surface is reduced, and the slip noise can be reduced.
【図１】本考案の一実施例の一部破断斜視図である。FIG. 1 is a partially cutaway perspective view of an embodiment of the present invention.
【図２】図１の側面図である。FIG. 2 is a side view of FIG.
【図３】本考案の一実施例のプ−リ巻き込み中のブロッ
クの挙動を示す作用説明図である。FIG. 3 is an operation explanatory view showing the behavior of the block during pull-in of one embodiment of the present invention.
【図４】従来のＶベルトの一部破断斜視図である。FIG. 4 is a partially cutaway perspective view of a conventional V-belt.
【図５】図４の側面図である。FIG. 5 is a side view of FIG.
【図６】従来のＶベルトのプ−リ巻き込み中のブロック
の挙動を示す作用説明図である。FIG. 6 is an operation explanatory view showing the behavior of the block during the pull-in of the conventional V belt.
１ Ｖベルト ２ ブロック ３ 張力帯 ｔ１ ブロックの厚み ｂ１ ブロック幅 1 V-belt 2 block 3 tension band t1 block thickness b1 block width
Claims (1)
Ｖベルトであって、ブロック幅をｂとし、ブロックの厚
みをｔとしたとき、ｔ／ｂを０．０４から０．２の範囲
としたことを特徴とする無段変速機用ベルト。1. A V-belt hung between a drive pulley and a driven pulley, wherein t / b is 0.04 to 0.2 when the block width is b and the block thickness is t. A belt for a continuously variable transmission, which is characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2450892U JPH0577651U (en) | 1992-03-23 | 1992-03-23 | Belt for continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2450892U JPH0577651U (en) | 1992-03-23 | 1992-03-23 | Belt for continuously variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0577651U true JPH0577651U (en) | 1993-10-22 |
Family
ID=12140124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2450892U Pending JPH0577651U (en) | 1992-03-23 | 1992-03-23 | Belt for continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0577651U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6334342A (en) * | 1986-07-25 | 1988-02-15 | Bando Chem Ind Ltd | V-belt |
-
1992
- 1992-03-23 JP JP2450892U patent/JPH0577651U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6334342A (en) * | 1986-07-25 | 1988-02-15 | Bando Chem Ind Ltd | V-belt |
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