JPS63308250A - V-belt for power transmission - Google Patents

Abstract

PURPOSE:To prevent the occurrence of relative slip and high stresses in a band, and to facilitate the assembling operation, and further to prolong the life-time, in the mutual contact between adjacent V-shaped metallic members, by constituting so that the circular-arc-shaped protruded part in the upper part above the center line is abutted on the adjacent plane part, and the semicylindrical projected part on the lower side of a belt contact supporting surface is abutted on the recessed part of the same shape. CONSTITUTION:It is so constituted that, in the mutual contact between adjacent V-shaped metallic members 2, a circular-arc-shaped protruded part 2a is abutted on the adjacent plane part 2d, and the semicylindrical projected part 2b on the lower side of a belt supporting surface is abutted on a recessed part 2c of the same shape. Thus, the circular-arc-shaped protruded part 2a is abutted on the mating perpendicular plane part 2d without having any clearance between the adjacent members, and the band is prevented from becoming in a polygonal state, and further the occurrence of high stresses on the inner surfaces of the band is prevented to reduce the abrasion of the belt and to prolong the lifetime effectively. And, since the semicylindrical projected part 2b is provided on the lower side of the band, and the lower side of one surface of the V-shaped member 2 has a sloped surface 2e, and the upper side 2f thereof is recessed from the circular-arc-shaped protruded part 2a, the V-shaped members have flexibility to be warped in upper and lower directions, so that the belt can be bent on both sides, enabling the V-shaped metallic member to be assembled last to be easily fitted together.

Description

【発明の詳細な説明】 （Ｉｊ’ｒ業上の利用分野〕 この発明は、動力伝達用Ｖベルト、特に可変直径Ｖプー
リに使用される動力伝達用Ｖベルトに関するものである
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a V-belt for power transmission, particularly to a V-belt for power transmission used in a variable diameter V-pulley.

〔従来の技術〕[Conventional technology]

例えば、重両用のＶベルト式無段変速機等の可変直径Ｖ
プーリに使用されるこの種の動力伝達用Ｖベルトとして
は、従来、例えば、特公昭５５−６７８３号公報や特開
昭５８−８１２５２号公報に、その構成例が開示されて
いる。For example, the variable diameter V of a V-belt type continuously variable transmission for heavy duty use, etc.
Examples of the configuration of this type of V-belt for power transmission used in pulleys have been disclosed, for example, in Japanese Patent Publication No. 55-6783 and Japanese Patent Application Laid-Open No. 58-81252.

これらＶベルトの構造は、いずれも複数の無端状金属帯
の積層より成る金属バンドをそれぞれ隣接する多数のＶ
形金属部材（ブロック）により支持するよう組合せたも
のである。The structure of these V-belts is that a metal band consisting of a stack of a plurality of endless metal bands is connected to a plurality of adjacent V-belts.
It is assembled so as to be supported by shaped metal members (blocks).

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

以上のような従来提案例におけるＶベルト構成の詳細説
明は、前記引用文献との重複を避けて省略するが、これ
らのＶベルトが、可変直径Ｖプーリ上に巻掛けられて回
転するとき、ベルト弯曲に伴う、それぞれ隣接する前記
Ｖ形金属部材相互間の揺動支点は、いずれもバンドの下
面（内面）より下方（プーリ中心方向）にあり、そのた
め、各Ｖ形金属部材のバンドを支持するための接触支持
面は、前記揺動運動により、相対的なすべりを生じ、ま
た、バンドの各積層相互間にも滑りを生ずる欠点がある
。さらにまた、上記揺動支点がバント当接面よりＦ方に
あるため、ｌ滑油が供給が困難であるという問題点があ
った。A detailed explanation of the V-belt configuration in the conventional proposed example as described above will be omitted to avoid duplication with the cited document, but when these V-belts are wound around a variable diameter V-pulley and rotated, the belt The swinging fulcrums between the adjacent V-shaped metal members due to curvature are both below the lower surface (inner surface) of the band (in the direction of the center of the pulley), and therefore support the band of each V-shaped metal member. The contact support surfaces for the band have the drawback that the rocking movement causes relative slippage, and also slippage between the individual layers of the band. Furthermore, since the swing fulcrum is located in the F direction from the bunt contact surface, there is a problem in that it is difficult to supply lubricating oil.

以上の欠点を改良する案として、例えば実開昭５８−２
０７５１号公報に一改ぷ提案例が開示されている。As a plan to improve the above-mentioned drawbacks, for example,
An example of a proposed revision is disclosed in Publication No. 0751.

この提案例による構成も、詳細説明は上記引用文献に譲
って省略するが、この方式は隣接する各Ｖ形金属部材（
ブロック）間の揺動支点位置がベルト当接面の高さとほ
ぼ一致するようにしたため、前記従来例欠点は解消され
る方向にあるが、反面つぎのような大きな欠点があった
。The detailed explanation of the configuration according to this proposed example is also omitted in favor of the above cited document, but this method is based on each adjacent V-shaped metal member (
Since the position of the swinging fulcrum between the blocks (blocks) is made to almost match the height of the belt abutting surface, the drawbacks of the prior art example described above are likely to be overcome, but on the other hand, there are the following major drawbacks.

すなわち、 （１）この提案においては、隣接する各Ｖ形金属部材間
に空間（すきま）が存在するよう構成されているため、
各部材がＶプーリのＶみぞ面と接したプーリ回転状態に
おいて、バンドがその空間により多角形状となり、また
、各Ｖ形金属部材のベルト支持当接面の中央部が円弧状
に高く弯曲している（前記引用公報第６図２１ｄ）ため
、当接するバンドに高い応力を発生する部分ができ、バ
ンドの寿命に悪影響を及ぼす欠点がある。That is, (1) In this proposal, since the structure is such that there is a space (gap) between each adjacent V-shaped metal member,
In the pulley rotation state where each member is in contact with the V groove surface of the V pulley, the band takes on a polygonal shape due to the space, and the center part of the belt support contact surface of each V-shaped metal member is highly curved in an arc shape. (see Figure 21d of the cited publication), there is a part that generates high stress in the abutting band, which has the disadvantage of having a negative effect on the life of the band.

（２）各Ｖ形金属部材のに相互揺動欠点となる突起部／
凹部は、これらにバントを組付けた時、バンド下面の接
触支持面とほぼ同一高さく同一プーリ半径）上にあり、
かつ、各Ｖ形金属部材の突起部の上側（外側）両側面が
互に平行面となっているため、ベルト弯曲の融通性がな
く、Ｖベルトの組付は当って、ＩｔＬ後のＶ形金属部材
が組付は難いという欠点がある。(2) Protrusions on each V-shaped metal member that cause mutual rocking defects/
When the bunt is assembled to these, the recess is located at approximately the same height and on the same pulley radius as the contact support surface on the lower surface of the band,
In addition, since both upper (outside) sides of the protrusions of each V-shaped metal member are parallel to each other, there is no flexibility in belt curvature, and the V-shaped belt after ItL is not assembled correctly. The drawback is that metal members are difficult to assemble.

（３）また上記のように、各Ｖ形金属部材のバンド組付
部の上側（外側）両側面が互に平行面で当接しているた
め、Ｖベルトが直線状態で走行する時の上下方向振動に
対して、一方にしか弯曲しないため、Ｖベルトの内側へ
の反りに対してバンドに強い張力が作用する欠点がある
。(3) Also, as mentioned above, since both upper (outer) side surfaces of the band assembly part of each V-shaped metal member are in contact with each other in parallel planes, the vertical direction when the V-belt runs in a straight line is Since the V-belt only curves in one direction in response to vibrations, it has the disadvantage that a strong tension is applied to the band against the inward warping of the V-belt.

（４）Ｖベルトの稼動時間と共にバンドの延びやＶ形金
属部材の突起部／凹部が摩耗すると、瞬接するＶ形金属
部材間にすきま（ガタ）を生じ、トルクの伝達が不円滑
となり、また、騒音を発する等の不具合を生ずる。(4) Over the operating time of the V-belt, as the band stretches and the protrusions/recesses of the V-shaped metal members wear out, a gap (backlash) will occur between the V-shaped metal members that are in momentary contact, making torque transmission uneven, and , causing problems such as noise.

この発明は、以上のような従来の提案例における問題点
にかんがみてなされたもので、隣接する各Ｖ形金属部材
間のすきまを実質的になくし、バンドに高い局部的応力
を生ずることなく、ベルトの摩耗や寿命に対しても有利
であり、しかもＶベルトの組付性も良好であるこの種の
Ｖベルトの提供を［１的としている。This invention was made in view of the problems in the conventional proposals as described above, and it substantially eliminates the gaps between adjacent V-shaped metal members, without causing high local stress on the band. [1] It is an object of the present invention to provide this type of V-belt, which is advantageous in terms of belt wear and service life, and also has good V-belt assemblability.

〔問題点を解決するための手段〕[Means for solving problems]

このため、この発明においては、この梯の動力伝達用Ｖ
ベルトの前記各隣接するＶ形金属部材間の相互接触を、
バンド下面接触面上に実質的に中心を有し、かつ該中心
線上部の前記バンド長手方向側端Ｅの円弧状凸部と、相
隣れるＶ形金属部材の平面部により当接させ、また、前
記ベルト接触支持面下方には、それぞれバンド幅方向に
軸心を有する半円筒状の凹部と凸部により当接させるよ
う構成することにより、前記目的を達成しようとするも
のである。Therefore, in this invention, the V for power transmission of this ladder is
mutual contact between each adjacent V-shaped metal member of the belt;
The arcuate convex portion of the longitudinal side end E of the band, which is substantially centered on the lower contact surface of the band and is above the center line, is brought into contact with the flat portion of the adjacent V-shaped metal member, and The above object is achieved by configuring the lower part of the belt contact support surface to be brought into contact with a semi-cylindrical recess and a protrusion each having an axis in the band width direction.

〔作用〕[Effect]

以上のような構成によるこの種のＶベルトは、前記バン
ドに、相対すべりや、特に高い応力を発生することかな
く、かつ組立性も良好であり、また、各部の摩耗や騒音
も少く長寿命を達成し得る。This type of V-belt with the above-mentioned structure does not cause relative slippage or particularly high stress on the band, and has good assemblability, and has a long life with little wear and noise in each part. can be achieved.

〔実施例〕〔Example〕

以下に、この発明を実施例に基づいて説明する。 The present invention will be explained below based on examples.

第１図（ａ）、（ｂ）、ＣＣ）は、本発明によるＶヘル
ドの一実施例の説明図で、（ａ）図は、本ＶヘルドかＶ
プーリのＶみぞと係合した状態の部分と、係合離脱した
直線状逆部分とを示す破断断面図、（ｂ）図は、（ａ）
図の部分的上面図、（Ｃ）図は、（ｂ）図のｃ−ｃ線断
面矢視図である。FIGS. 1(a), (b), and CC) are explanatory diagrams of an embodiment of the V-held according to the present invention.
A cutaway cross-sectional view showing the part engaged with the V groove of the pulley and the linear opposite part disengaged, (b) is the same as (a)
The figure (C) is a partial top view of the figure, and the figure (C) is a sectional view taken along the line c-c of the figure (b).

（構成） 第１図において、１は、無端状の薄い金属帯を積層した
バンド、２は、複数のＶ形金属部材（ブロック）で、バ
ンド１の下面（内面）が当接する上向きの接触支持面は
円弧状に形成され、該接触面の下方（プーリ中心方向）
の、バンド１長手方向の一側面には１６円筒状の突起部
２ｂを有し、その反対側面上には、５亥突起２ｂもしく
は、後述１−るローラ部材３を受けるための、やや大形
のｔ円筒状の凹部２ｃが凹設されている。また、２Ａは
、Ｌ記ローラ部材３を介装するためのＶ形金屈部材であ
り、バンド１長手円周方向の両側面には、それぞれ半円
筒形凹部２Ａｂ、２Ａｃが凹設されている。これらのＶ
形金属部材２，２Ａは、そわぞれ鉄系の焼結合金により
製造すると有利である（後述）。３は、相隣れるＶ形金
属部材２／２Ａもしくは２Ａ／２Ａの各半円筒形凹部間
に介装された弾性ローラ部材で、硬質ゴムや合成樹脂等
の弾性体より成る。図例は、弾性変形効果を期待した中
空ローラを示す。また、４は、各Ｖ形金属部材２．２Ａ
をバンドｌに拘束するためのワイヤ製ストッパ部材であ
る。(Structure) In Fig. 1, 1 is a band made of stacked endless thin metal strips, 2 is a plurality of V-shaped metal members (blocks), and is an upward contact support that the lower surface (inner surface) of band 1 comes into contact with. The surface is formed in an arc shape, and below the contact surface (towards the center of the pulley)
One longitudinal side of the band 1 has a 16-cylindrical protrusion 2b, and the opposite side has a 5-cylindrical protrusion 2b or a slightly larger roller member 3 for receiving the roller member 3 described later. A cylindrical recess 2c is provided. Further, 2A is a V-shaped metal bending member for interposing the L roller member 3, and semi-cylindrical recesses 2Ab and 2Ac are formed on both sides of the band 1 in the longitudinal circumferential direction. . These V
It is advantageous if the shaped metal members 2, 2A are each made of an iron-based sintered alloy (described later). Reference numeral 3 denotes an elastic roller member interposed between the semi-cylindrical recesses of the adjacent V-shaped metal members 2/2A or 2A/2A, and is made of an elastic material such as hard rubber or synthetic resin. The illustrated example shows a hollow roller expected to have an elastic deformation effect. 4 is each V-shaped metal member 2.2A
This is a wire stopper member for restraining the band 1 to the band 1.

連接するＭＶ形金金属部材２間には、ローラ部材３を介
装するためのＶ形金属部材２Ａを適当に配設することが
できる。第１図には、説明の便宜上、適当数のローラ部
材を配設しである。A V-shaped metal member 2A for interposing the roller member 3 can be appropriately disposed between the MV-shaped gold metal members 2 that are connected to each other. In FIG. 1, an appropriate number of roller members are shown for convenience of explanation.

第２図および第３図に、それぞれ、Ｖ形金属部材２／２
Ａの各単独形状詳細図を示す。第２図（ａ）は、Ｖ形金
属部材２の正面図、（ｂ）は、（ａ）図の右側面図、（
ｃ）は、（ｂ）図のむ側面図、（ｄ）は、（ａ）図の下
面図、（ｅ）は、（ａ）図のｅ−ｅ断面矢視図である。In FIG. 2 and FIG. 3, V-shaped metal member 2/2 is shown, respectively.
Detailed drawings of individual shapes of A are shown. FIG. 2(a) is a front view of the V-shaped metal member 2, FIG. 2(b) is a right side view of FIG.
(c) is a side view of the figure (b), (d) is a bottom view of the figure (a), and (e) is a sectional view along the line ee of the figure (a).

また、第３図（ａ）は、Ｖ形金属部材２Ａの背面図、（
ｂ）は、（ａ）図の右側面図、（ｃ）は、（ａ）図の下
面図、（ｄ）は、（ａ）図のｅ−ｅ断面矢視図である。Moreover, FIG. 3(a) is a rear view of the V-shaped metal member 2A, (
b) is a right side view of the figure (a), (c) is a bottom view of the figure (a), and (d) is a sectional view taken along line ee of the figure (a).

第２図（ｂ）に示′１−ように、Ｖ形金属部材２の同図
右側面形状は、バント１の下面接触支持面である外向き
の当接面２ｇ（（ａ）図）にほぼ等しい高さの線上に中
心を有し、バンド長手方向側端上に、その中心線の上下
にわたる半径Ｒの円弧状凸部２ａと、その下方に、前記
半円筒状突起部２ｂを有し、上記円弧状凸部２ａのＦ方
側面部２ｆは、該凸部２ａより引込んだ低位置にあり、
また、該円弧状凸部２ａより下方側面は、斜面２ｅとし
である。同（Ａの左側反対側面は、組直平面２ｄを形成
し、右側面の突起２ｂの中心と実質的に同一高さに中心
を持つやや大形の半円筒状凹部２ｃが凹設されている。As shown in FIG. 2(b), the shape of the right side of the V-shaped metal member 2 in the same figure is similar to the outward contact surface 2g (FIG. 2(a)) which is the lower contact support surface of the bunt 1. The band has a center on a line of approximately the same height, and has an arcuate protrusion 2a on the longitudinal side end of the band with a radius R extending above and below the center line, and below that, the semicylindrical protrusion 2b. , the F side surface portion 2f of the arc-shaped convex portion 2a is located at a lower position retracted from the convex portion 2a,
Further, the lower side surface of the arcuate convex portion 2a is a slope 2e. (The opposite left side surface of A forms an assembly plane 2d, and is provided with a slightly large semi-cylindrical recess 2c whose center is substantially at the same height as the center of the projection 2b on the right side surface. .

また、バント１の下面接触支持面２ｇは、第２図（ｅ）
に示すように、バンド１のほぼ最小の曲率半径Ｒ６の円
弧状としである。第２図（ａ）における２ｈは、Ｖプー
リのＶみぞに当接する斜面である。In addition, the lower contact support surface 2g of the bunt 1 is shown in FIG. 2(e).
As shown in FIG. 2, the band 1 has an arc shape with a substantially minimum radius of curvature R6. 2h in FIG. 2(a) is a slope that comes into contact with the V groove of the V pulley.

つぎに、第３図（ｄ）に示すように、Ｖ形金属部材２Ａ
のブーり円周方向両側面は、実質的に垂直平行面２Ａａ
、２Ａｄに形成され、バント１の下面当接面２Ａｇは、
Ｖ形金属部材２（第２図（ｅ））と同様、バンド１のほ
ぼ最小曲率半径Ｒｏの円弧状にしてあり、その下方（内
側）には、両側面に、それぞれほぼ同一高さ位置に中心
を４３する半円筒状凹部２Ａｂ、２Ａｅが凹設されてい
る。なお、平面２Ａａの凹部２Ａｂの下方部分は、・Ｆ
面２Ａａより、平行に逃がし而２Ａｅを設けである。Next, as shown in FIG. 3(d), the V-shaped metal member 2A
Both sides of the boob in the circumferential direction are substantially vertical parallel surfaces 2Aa
, 2Ad, and the lower contact surface 2Ag of the bunt 1 is
Similar to the V-shaped metal member 2 (FIG. 2(e)), the band 1 has a circular arc shape with approximately the minimum radius of curvature Ro, and below (inside) there are grooves on both sides at approximately the same height. Semi-cylindrical recesses 2Ab and 2Ae having a center 43 are provided. Note that the lower part of the recess 2Ab on the plane 2Aa is ・F
An escape point 2Ae is provided parallel to the surface 2Aa.

また、第３図（ａ）における２Ａｈは、ＶプーリのＶみ
ぞ当接傾斜面である。Moreover, 2Ah in FIG. 3(a) is a V groove abutting inclined surface of the V pulley.

（動作） 第１図（ａ）に示す■ベルト組立体において、Ｖ形金属
部材２同志の相互の接触は、バントｌの下面付近におい
て、円弧状凸部２ａと隣接部材の垂直平面部２ｄとの間
で行われ、一方、凸起部２ｂは、隣接部材の凹部２ｃの
軸方向両側面および円筒面上部で位置決めされる。(Operation) In the belt assembly shown in FIG. 1(a), mutual contact between the V-shaped metal members 2 occurs between the arcuate convex portion 2a and the vertical plane portion 2d of the adjacent member in the vicinity of the lower surface of the bunt l. On the other hand, the convex portion 2b is positioned at both axial side surfaces and the upper portion of the cylindrical surface of the concave portion 2c of the adjacent member.

また、Ｖ形金属部材２／２Ａとの相互の接触およびＶ形
金属部材２Ａ同志の接触においても、面記円弧状凹部２
ａおよび隣接部材の垂直平面部２ｄは常に当接し、また
、第２図（ｂ）における半円筒状凹部２ｃと、第３図（
ｄ）における半円筒形凹部２Ａｂとの間に第１図（ａ）
に示すローラ部材３が、凹部２Ｃの軸方向両側面で位置
決めされて介装されるため、ローラ部材３を介して接触
される。Also, in the mutual contact with the V-shaped metal members 2/2A and the contact between the V-shaped metal members 2A, the surface circular arc-shaped recess 2
a and the vertical plane portion 2d of the adjacent member are always in contact with each other, and the semi-cylindrical recess 2c in FIG. 2(b) and the vertical plane portion 2d in FIG.
d) and the semi-cylindrical recess 2Ab in FIG. 1(a).
The roller members 3 shown in FIG. 1 are positioned and interposed on both axial sides of the recess 2C, so that the roller members 3 are brought into contact with each other via the roller members 3.

（作用／効果） つぎに、以上のような構成／動作におけるこの実施例の
作用／効果を、前記従来の改善提案例における問題点と
対比して説明する。(Operations/Effects) Next, the functions/effects of this embodiment in the above configuration/operation will be explained in comparison with the problems in the conventional improvement proposal example.

すなわち、 （１）外隣接Ｖ形金属部材間のすきま（空間）存在によ
る従来例のバンドの多角形状化の影背については、各第
１ｖ形金属部材２相互間においては、円弧状凸部２ａと
相手垂直平面部２ｄとが当接して隣接部材間のすきまが
存在しないので、バント１が多角形状態となることがな
く、また、バンド１の内面に高い応力を発生することが
なく、ベルトの摩耗や寿命上効果的である。That is, (1) Regarding the influence of polygonalization of the band in the conventional example due to the existence of gaps (spaces) between outer adjacent V-shaped metal members, between each first V-shaped metal member 2, the arcuate convex portion 2a and the mating vertical plane part 2d are in contact with each other and there is no gap between the adjacent members, so the band 1 does not become polygonal, and high stress is not generated on the inner surface of the band 1, and the belt Effective in terms of wear and service life.

また、弾性効果を期待し得るローラ部材３を適当のピッ
チで配設し得るため、トルク変動の吸収作用があり、車
両の乗地を向−Ｆするとともに、ベルト寿命にも好影響
を与える。Further, since the roller members 3, which can be expected to have an elastic effect, can be arranged at an appropriate pitch, they have an effect of absorbing torque fluctuations, which improves the riding position of the vehicle and also has a favorable effect on the belt life.

（２）■ベルト／■プーリの組付性に対しては、Ｖ形金
属部材２の半円筒状突起部２ｂか、バント１の内（下）
側にあること、第１ｖ形金属部材２のバンド１取付部の
上／下における片面の内（下）側は傾斜面２ｅをなし、
外（上）側２ｆは、円弧状凸部２ａより引込めであるた
め、上反り、下反り両方向に可視性があり、ベルトを両
側に傾けることが可能であり、また、ローラ部材３を介
装する個所においては、ローラ部材３の半径が芥凹部の
２Ａａ、２Ａｃの深さより大きくしであるため、隣接第
２Ｖ形金属部材２Ａの上下（内外）にわずかなすきまを
形成し得る。隣接部材すきま１個所におけるバンド１外
側への相互傾斜は微小であっても、それを数個部分加ヰ
すると、大きなフレキンビリティを得ることができ、最
後に組付けるＶ形金属部材を容易に組付けることができ
る。(2) For ease of assembling the belt/pulley, either the semi-cylindrical protrusion 2b of the V-shaped metal member 2 or the inner (lower) part of the bundt 1
the inner (lower) side of the first V-shaped metal member 2 above/below the band 1 attachment part forms an inclined surface 2e;
Since the outer (upper) side 2f is retracted from the arcuate convex portion 2a, it is visible in both upward and downward directions, and the belt can be tilted to both sides. At the mounting location, since the radius of the roller member 3 is larger than the depth of the recesses 2Aa and 2Ac, a slight gap can be formed above and below (inside and outside) the adjacent second V-shaped metal member 2A. Even if the mutual inclination toward the outside of the band 1 at one location between adjacent members is minute, by modifying several parts of it, great flexibility can be obtained, and the V-shaped metal member to be assembled at the end can be easily assembled. Can be assembled.

また、このほか、ローラ部材３の効果として、Ｖ形金属
部材間のくさび作用によりバンド１に該部材を押付ける
ことにより、バント１によるトルク伝達を確実にする効
果を有する。In addition, the roller member 3 has the effect of ensuring torque transmission by the band 1 by pressing the V-shaped metal members against the band 1 due to the wedge action between the members.

（３）■ベルトの上下振動 １ｉ？［記のように、Ｖ形金属部材２のバンドｌ下面当
接面の側面上下部が平行でなく、上方面２ｆ部か円弧状
凸部２ａより引込めであるため、■ベルトは組立てられ
た状態で内外双方に弯曲し得るため、直線状態走行する
Ｖヘルドが上下に振動するときに、従来例のように内反
りに弯曲しようとするとき、前記゛ト行部の突張り現象
により、バンドに大きい引張り荷重が加わる怖がなく、
これもバンド寿命に灯影！を与える。(3) ■Vertical vibration of belt 1i? [As shown, the top and bottom sides of the bottom abutment surface of the band l of the V-shaped metal member 2 are not parallel, and the upper surface 2f is retracted from the arcuate protrusion 2a, so the belt is assembled. Therefore, when a V-heald running in a straight line vibrates up and down and tries to curve inward as in the conventional example, the tension of the running part causes the band to bend. without the fear of applying large tensile loads to
This is also a good sign for the life of the band! give.

（４）■ベルトの稼動時間に伴うバンドの延びや突起部
や凹部の摩耗に対しては、弾性を（１するローラ部材３
による与圧と、回転部におけるローラ部材３の中心が、
バンド！の内（下）側にあることにより、バンド１が所
定限界内で延びても、隣接Ｖ形金属部材相互にすきまを
生ずることなく、騒音発生等の怖れかない。(4) ■ The elasticity of the roller member (3
The pressurization by and the center of the roller member 3 in the rotating part are
band! By being located on the inner (lower) side, even if the band 1 extends within a predetermined limit, there will be no gap between adjacent V-shaped metal members, and there is no fear of noise generation.

さらに、他の一般的な特徴として、Ｖ形金属部材は、形
状も焼結合金による製造に通し、例えば、鉄系の焼結合
金により、実施例のような複雑形状の小形部品を安価に
製造することができ、また、焼結合金の、いわゆる含油
メタルとしてのポーラス性状を利用することにより、高
面圧、接触慴動に対する潤滑機能を果し、焼付き等を防
止しｊ：ｌる。Furthermore, as another general feature, the shape of the V-shaped metal member can also be manufactured using a sintered alloy. For example, a small part with a complex shape like the one shown in the example can be manufactured at low cost using an iron-based sintered alloy. In addition, by utilizing the porous properties of the sintered alloy as a so-called oil-impregnated metal, it has a lubricating function against high surface pressure and contact sliding, and prevents seizure and the like.

また、本実施例におけるＶ形金属部材の形状は、圧縮に
対して仔利な肉厚■断面として、焼結合金構造に通する
ように考慮しである。Further, the shape of the V-shaped metal member in this embodiment is designed to have a thick cross section that is advantageous against compression so that it can pass through the sintered alloy structure.

〔発明の効果〕〔Effect of the invention〕

以上、説明したように、この発明によれば、バンドに相
対摩耗や、特に高い応力を発生することかなく、組立性
も良好であり、さらに、各部の摩耗やｇＭの発生も少い
長寿命の動力伝達用Ｖベルトを提供することができた。As explained above, according to the present invention, there is no relative wear or particularly high stress on the band, and the assembly is easy, and furthermore, the wear of various parts and the generation of gM are small, and the life is long. We were able to provide a V-belt for power transmission.

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

第１図ないし第３図は、この発明によるＶベルトの一実
施例を示す説明図で、第１図（ａ）。 （ｂ）、（Ｃ）は、それぞｊ−ＬＶＶベルト断断面図と
、その部分的上面図およびそのｃ−ｃ線断面矢視図、第
２図（ａ）〜（ｅ）および第３図（ａ）〜（ｄ）は、そ
れぞれ第１および第２ｖ形金属ブロツクの各投影図と断
面図である。 １・・・・・・無端状金属バンド ２　／　２　Ａ−・・・・・Ｖ形金属部材２ａ・・・・
・・円弧状凸部 ２ｂ・・・・・・単円筒状突起部 ２ｃ・・・・・・半円筒状凹部 ２ｄ・・・・・・平面部 ２ｇ、２Ａｇ・・・・・・バント接触支持面２　Ａ　ｂ
　／　２　Ａ　ｃ・・・・・パト円筒状凹部３・・・・
・・ローラ部材 出願人　本［■技研二［業株式会社 第〕図 （ａ） ９５３図 （ａ）　　　　　　　　　　　　　　（ｂ）し （Ｃ） （ｄ） ｊ　／ １　・ ｈ＋ 断面’Ａ−Ａ1 to 3 are explanatory diagrams showing one embodiment of the V-belt according to the present invention, and FIG. 1(a) is an illustration. (b) and (C) are a sectional view of the j-LVV belt, a partial top view thereof, a sectional view taken along the line c-c, FIGS. 2(a) to (e), and FIG. 3, respectively. (a) to (d) are a projection view and a sectional view of the first and second V-shaped metal blocks, respectively. 1...Endless metal band 2/2 A-...V-shaped metal member 2a...
...Circular convex portion 2b...Single cylindrical protrusion 2c...Semi-cylindrical recess 2d...Plane portions 2g, 2Ag...Bund contact support Surface 2 A b
/ 2 A c...Pato cylindrical recess 3...
...Roller member applicant Book [■ Gikenji Co., Ltd.] Figure (a) Figure 953 (a) (b) (C) (d) j / 1 ・ h+ Cross section 'A-A

Claims (4)

【特許請求の範囲】[Claims] （１）無端状の金属バンドの内面が当接する外向きの接
触支持面を有するＶ形金属部材の多数個を、該バンドの
長手方向にそれぞれ隣接して連設し無端状ベルトを構成
した動力伝達用Ｖベルトにおいて、前記各隣接Ｖ形金属
部材間の相互接触が、前記バンド接触支持面上に中心を
有し、かつ、該中心線の内外（上下）にわたる前記バン
ド長手方向側端上の円弧状凸部と、隣接Ｖ形金属部材の
平面部とによる当接と、前記接触支持面の内方において
、前記バンド幅方向に軸心を有するそれぞれ半円筒状凹
部および凸部による当接とにより行われるよう構成した
ことを特徴とする動力伝達用Ｖベルト。(1) A power source constructed by constructing an endless belt by connecting a large number of V-shaped metal members each having an outward contact support surface against which the inner surface of an endless metal band comes into contact, adjacent to each other in the longitudinal direction of the band. In the transmission V-belt, the mutual contact between each adjacent V-shaped metal member has a center on the band contact support surface, and a contact point on the longitudinal side end of the band that extends inside and outside (up and down) the center line. abutment between the arc-shaped convex portion and a flat surface of an adjacent V-shaped metal member; and abutment between a semi-cylindrical concave portion and a convex portion each having an axis in the band width direction on the inner side of the contact support surface. A V-belt for power transmission, characterized in that the V-belt is configured to transmit power by: （２）前記Ｖ形金属部材の半円筒状凹部および凸部は、
前記バンド接触支持面内方の、前記円弧状凸部側に突設
した半円筒状突起部と、その対向面側に凹設した、半円
筒状凹部であることを特徴とする特許請求の範囲第１項
記載の動力伝達用Ｖベルト。(2) The semi-cylindrical concave portion and convex portion of the V-shaped metal member are
Claims characterized by: a semi-cylindrical protrusion protruding from the arcuate protrusion side on the inner side of the band contact support surface; and a semi-cylindrical recess concavely disposed on the opposite surface side. The V-belt for power transmission according to item 1. （３）前記連接した各Ｖ形金属部材のうち、少くとも１
個以上を、前記突設した半円筒状突起部に代えて、円筒
形状凹部を凹設し隣接対向する前記各凹部間に、弾性を
有するローラ部材を介装したことを特徴とする特許請求
の範囲第２項記載の動力伝達用Ｖベルト。(3) At least one of the connected V-shaped metal members
In the present invention, a cylindrical recess is provided in place of the protruding semi-cylindrical protrusion, and an elastic roller member is interposed between each of the adjacent and opposing recesses. V-belt for power transmission according to scope 2. （４）前記各Ｖ形金属部材を、焼結合金で製造したこと
を特徴とする特許請求の範囲第２項または第３項記載の
動力伝達用ベＶルト。(4) The V-belt for power transmission according to claim 2 or 3, wherein each of the V-shaped metal members is manufactured from a sintered alloy.