JPS6121866B2 - - Google Patents
Info
- Publication number
- JPS6121866B2 JPS6121866B2 JP14267680A JP14267680A JPS6121866B2 JP S6121866 B2 JPS6121866 B2 JP S6121866B2 JP 14267680 A JP14267680 A JP 14267680A JP 14267680 A JP14267680 A JP 14267680A JP S6121866 B2 JPS6121866 B2 JP S6121866B2
- Authority
- JP
- Japan
- Prior art keywords
- idler
- annular body
- elastic annular
- tread surface
- groove
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Landscapes
- Tires In General (AREA)
- Motor Power Transmission Devices (AREA)
Description
【発明の詳細な説明】
本発明は装軌式車輌のアイドラまわりにおける
騒音低減装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a noise reduction device around an idler of a tracked vehicle.
従来、装軌式車輌のアイドラまわりにおける騒
音低減装置として、トラツクチエーンのトラツク
リンクとアイドラの第二踏面との間の直接係合に
よる金属打音を緩和させるために、第１図乃至第
４図に示すように、アイドラ２の第一踏面４に沿
つて環状の凹溝６を設けて該凹溝６内にセグメン
ト状の弾性環状体８を周設し、弾性環状体の各セ
グメントを周方向に適宜間隔を置いた複数位置で
アイドラ２の内方（第１図および第２図）、又は
アイドラ２の外方（第３図および第４図）よりア
イドラの外周壁にボルト１０止めし、弾性環状体
８の外周面にてトラツクチエーン１２のトラツク
ブツシユ１４を半径方向に押圧することによりト
ラツクリンク１６をアイドラの第二踏面１８より
離間させるようにした騒音低減装置は既に公知で
ある。 Conventionally, as a noise reduction device around an idler of a tracked vehicle, a device as shown in FIGS. As shown in FIG. 2, an annular groove 6 is provided along the first tread surface 4 of the idler 2, and a segment-shaped elastic annular body 8 is provided around the groove 6, and each segment of the elastic annular body is arranged in the circumferential direction. Bolts 10 are fixed to the outer peripheral wall of the idler from the inside of the idler 2 (FIGS. 1 and 2) or from the outside of the idler 2 (FIGS. 3 and 4) at multiple positions appropriately spaced from each other. A noise reduction device is already known in which the outer circumferential surface of the elastic annular body 8 presses the track bush 14 of the track chain 12 in the radial direction, thereby separating the track link 16 from the second tread surface 18 of the idler.
しかしながら、上記従来装置の中、弾性環状体
８をアイドラ内方よりボルト止めするタイプのも
のは、アイドラ２に弾性環状体を固定するにア
イドラ側壁２０の狭い孔２２を介してボルト１０
の取付作業をしなければならず取付作業が面倒で
あること、アイドラ外周壁に多数のボルト孔を
穿設するためにアイドラの強度低下が避けられな
いこと、弾性環状体８をボルト１０頭部又は先
端にて保持する取付構造となつているために取付
部が弱くこれをカバーすべく弾性環状体の裏面全
体に亘つて補強金属板２４を張設する必要がある
こと、および弾性環状体のトラツクブツシユと
の接触巾が狭いために接触面圧が大きく該環状体
の摩耗が激しい等の欠点がある。一方、従来装置
の中、弾性環状体をアイドラ外方よりボルト止め
するタイプのものは、上記，，の欠点に加
え、弾性環状体の各セグメントの表面にボルト頭
部収納用の複数の凹所２６を設ける必要があるた
めに弾性環状体はブツシユとのくり返し接触によ
り該凹所２６より容易に破損し易い欠点を有す
る。 However, among the above-mentioned conventional devices, the type in which the elastic annular body 8 is bolted from inside the idler is such that the elastic annular body 8 is fixed to the idler 2 by passing the bolt 10 through the narrow hole 22 of the idler side wall 20.
The installation work is troublesome as it requires a lot of work to install the idler, the strength of the idler inevitably decreases due to the need to drill a large number of bolt holes in the outer peripheral wall of the idler, and the elastic annular body 8 is attached to the head of the bolt 10. Or, since the attachment structure is such that the attachment is held at the tip, the attachment part is weak and it is necessary to stretch the reinforcing metal plate 24 over the entire back surface of the elastic annular body to cover this. Since the width of contact with the track bushing is narrow, the contact surface pressure is large, resulting in severe wear of the annular body. On the other hand, among conventional devices, the type in which the elastic annular body is bolted from the outside of the idler has the disadvantages mentioned above, as well as multiple recesses on the surface of each segment of the elastic annular body to accommodate the bolt head. Due to the necessity of providing the recess 26, the elastic annular body has the disadvantage that it is more easily damaged than the recess 26 due to repeated contact with the bush.
本発明は上記従来の欠点を除去すべくなされた
ものであつて、このため本発明は装軌式車輌のア
イドラまわりにおける騒音低減装置であつて、該
アイドラの第一踏面に沿つて少くとも２本の環状
凹溝を形成し、該凹溝に嵌合する少くとも２本の
突条を有するセグメント状の弾性環状体を第一踏
面まわりに周設し、前記アイドラの各凹溝の両側
壁および該凹溝内に嵌合される弾性環状体の各突
条に周方向に適宜間隔を置いてほぼアイドラ軸と
平行に伸びる貫通孔を形成し、該貫通孔内にアイ
ドラ一側より取付具を挿入することにより弾性環
状体をアイドラに固定し、該弾性環状体の外周面
にてトラツクブツシユを半径外方に押圧すること
によりトラツクリンクをアイドラの第二踏面より
離間せしめるようにし、前記弾性環状体は前記凹
溝外にて前記第一踏面上のほぼ全面に伸びる本体
部を含み、該本体部は第一踏面上に固着されてお
り、前記弾性環状体の各突条に形成される貫通孔
が該突条内に埋設された剛性管状部片により形成
されていることを特徴とする。 The present invention has been made to eliminate the above-mentioned conventional drawbacks, and for this purpose, the present invention provides a noise reduction device around an idler of a tracked vehicle. A segment-shaped elastic annular body having an annular groove is formed, and at least two protrusions that fit into the groove are disposed around the first tread surface, and both side walls of each groove of the idler are provided. and a through hole extending approximately parallel to the idler axis at appropriate intervals in the circumferential direction is formed in each protrusion of the elastic annular body to be fitted into the groove, and a mounting device is inserted into the through hole from one side of the idler. The elastic annular body is fixed to the idler by inserting a The body includes a main body extending over substantially the entire surface of the first tread outside the groove, the main body being fixed onto the first tread, and having a through-hole formed in each protrusion of the elastic annular body. The hole is formed by a rigid tubular piece embedded within the ridge.
以下本発明の内容を添附図に示した実施例に沿
つて説明するに、第５図および第６図は本発明の
好適な一実施例を示すもので、該実施例装置では
アイドラ２の第一踏面４に沿つて２本の環状凹溝
６Ａ，６Ｂを形成し、該凹溝６Ａ，６Ｂに嵌合す
る２本の突条８Ａ，８Ｂを有するセグメント状の
合成ゴム等よりなる弾性環状体８を第一踏面４ま
わりに周設する。弾性環状体８の各セグメントは
図示のような断面形状を有し、上記凹溝６Ａ，６
Ｂ内に嵌入される突条８Ａ，８Ｂと第一踏面４上
にあつてトラツクチエーン１２のトラツクブツシ
ユ１４と係合する本体部８Ｃとを含む。該弾性環
状体８の高さは、図示のように弾性環状体の外周
面が通常トラツクブツシユ１４を半径外方に押圧
してトラツクリンク１６をアイドラの第二踏面１
８より離間せしめるような高さに選ばれる。弾性
環状体８の各セグメントの突条８Ａ，８Ｂには周
方向に適宜間隔を明けた位置にアイドラ軸とほゞ
平行に伸びる剛性の管状部片２８Ａ，２８Ｂが埋
設固定されており、これら管状部片２８Ａ，２８
Ｂの管孔３０Ａ，３０Ｂはアイドラ２の各凹溝６
Ａ，６Ｂ両側壁３２Ａ，３２Ｂ，３２Ｃに周方向
に適宜間隔を置いて穿設されたボルト孔３４Ａ，
３４Ｂ，３４Ｃと整合してアイドラー側よりアイ
ドラ他側に亘つてアイドラ軸とほゞ平行に伸びる
貫通孔を形成している。上記整合したボルト孔３
４Ａ，３４Ｂ，３４Ｃと管孔３０Ａ，３０Ｂには
ボルト３６がアイドラ一側より挿入され、アイド
ラ他側にて該ボルト３６先端をナツト３８止めす
ることにより弾性環状体８がアイドラ２に固定さ
れている。なお、アイドラ最外側のボルト孔３４
Ａ，３４Ｂはボルト頭部およびナツト３８を収容
すべく図示のように座ぐり穴に形成することが望
ましい。 The content of the present invention will be explained below with reference to an embodiment shown in the attached drawings. FIGS. 5 and 6 show a preferred embodiment of the present invention. An elastic annular body made of segment-shaped synthetic rubber, etc., which forms two annular grooves 6A, 6B along the tread surface 4, and has two protrusions 8A, 8B that fit into the grooves 6A, 6B. 8 around the first tread surface 4. Each segment of the elastic annular body 8 has a cross-sectional shape as shown in the figure, and the grooves 6A, 6
The main body portion 8C is located on the first tread surface 4 and engages with the truck bush 14 of the truck chain 12. The height of the elastic annular body 8 is such that the outer circumferential surface of the elastic annular body normally presses the truck bush 14 radially outward to move the truck link 16 to the second tread surface 1 of the idler, as shown in the figure.
The height is selected so that the distance is greater than 8. Rigid tubular pieces 28A, 28B extending substantially parallel to the idler axis are embedded and fixed in the protrusions 8A, 8B of each segment of the elastic annular body 8 at appropriate intervals in the circumferential direction. Pieces 28A, 28
The pipe holes 30A and 30B of B are the grooves 6 of the idler 2.
A, 6B side walls 32A, 32B, 32C, bolt holes 34A, which are bored at appropriate intervals in the circumferential direction;
A through hole is formed in alignment with 34B and 34C and extending substantially parallel to the idler axis from the idler side to the other side of the idler. Aligned bolt hole 3 above
4A, 34B, 34C and the tube holes 30A, 30B, bolts 36 are inserted from one side of the idler, and the tips of the bolts 36 are fastened with nuts 38 on the other side of the idler, thereby fixing the elastic annular body 8 to the idler 2. There is. Note that the idler outermost bolt hole 34
Preferably, A and 34B are counterbore holes as shown to accommodate the bolt head and nut 38.
本発明装置においては、上記のように弾性環状
体８をアイドラ２に固定するに、弾性環状体８の
各セグメントに設けた管孔３０Ａ，３０Ｂとアイ
ドラ２のボルト孔３４Ａ，３４Ｂ，３４Ｃとを整
合した後該整合した孔内にアイドラ側部よりボル
ト３６を挿入することにより固定できるようにし
たのでアイドラへの弾性環状体の取付作業が容易
となり、またアイドラ２の外周壁にボルト取付孔
を穿設することが無いからアイドラの強度を低下
させることもない。また、弾性環状体８内に剛性
の管状部片２８Ａ，２８Ｂを埋設固定して該管状
部片をボルト３６全体で保持するようにしたから
取付部が強化され、従来のように弾性環状体の裏
面全体に亘つて補強金属板を張設する必要が無い
から装置全体を簡単にすることができる。さら
に、弾性環状体８の外周面にはボルト収納用の凹
所を設ける必要が無いからトラツクブツシユ１４
とのくり返し接触により該凹所より破損すること
もない。またさらに、図示のように、弾性環状体
８の本体部８Ｃの横巾、つまりトラツクブツシユ
１４との接触巾を大きくして接触面圧を小さくす
ることにより弾性環状体の寿命を大巾に延長させ
ることができる。なおこの場合、弾性環状体８の
本体部８Ｃと第一踏面４との間を固着して弾性環
状体をアイドラにより強固に固定することが望ま
しい。 In the device of the present invention, in order to fix the elastic annular body 8 to the idler 2 as described above, the tube holes 30A, 30B provided in each segment of the elastic annular body 8 and the bolt holes 34A, 34B, 34C of the idler 2 are connected. After alignment, the bolts 36 can be inserted into the aligned holes from the side of the idler for fixation, making it easier to attach the elastic annular body to the idler. Since there is no drilling required, there is no reduction in the strength of the idler. Furthermore, since the rigid tubular pieces 28A and 28B are buried and fixed in the elastic annular body 8 and held by the entire bolt 36, the attachment part is strengthened, and unlike the conventional elastic annular body, Since there is no need to extend a reinforcing metal plate over the entire back surface, the entire device can be simplified. Furthermore, since there is no need to provide a recess for storing bolts on the outer circumferential surface of the elastic annular body 8, the track bushing 14
It will not be damaged by repeated contact with the recess. Furthermore, as shown in the figure, by increasing the width of the main body portion 8C of the elastic annular body 8, that is, the contact width with the truck bush 14, and reducing the contact surface pressure, the life of the elastic annular body is greatly extended. be able to. In this case, it is desirable that the main body portion 8C of the elastic annular body 8 and the first tread surface 4 be firmly fixed, and the elastic annular body be firmly fixed by an idler.
第７図は、本発明装置の変形例を示すもので、
該変形例のものは上記各突条８Ａ，８Ｂ内に埋設
された剛性管状部片２８Ａ，２８Ｂの管端部分に
フランジ２９を設けたもので、これにより管状部
片２８Ａ，２８Ｂを突条８Ａ，８Ｂにより強固に
固着することができる。該変形例のものゝその他
の構成および作用効果は先の実施例のものと同様
である。 FIG. 7 shows a modification of the device of the present invention,
In this modified example, a flange 29 is provided at the tube end portion of the rigid tubular pieces 28A, 28B embedded in each of the protrusions 8A, 8B. , 8B, it can be firmly fixed. The other configurations and effects of this modification are the same as those of the previous embodiment.
なお、本発明装置においてはアイドラの第一踏
面に形成される凹溝および該凹溝内に嵌入される
弾性環状体の突条を２本以上の複数本とすること
ができる。また本発明装置にあつてはアイドラま
わりにトラツクチエーンを巻装したまゝ弾性環状
体の取付、取外しが可能である。 In addition, in the device of the present invention, the groove formed in the first tread surface of the idler and the protrusion of the elastic annular body fitted into the groove can be two or more. Further, in the device of the present invention, it is possible to attach and detach the elastic annular body while the track chain is wound around the idler.
以上のように、本発明によればアイドラへの弾
性環状体の取付が容易であり、かつ構造簡単であ
りながらアイドラおよび弾性環状体の強度および
耐久性を向上させることができる装軌式車輌のア
イドラまわりにおける騒音低減装置が提案され
る。 As described above, according to the present invention, the elastic annular body can be easily attached to the idler, and the strength and durability of the idler and the elastic annular body can be improved while having a simple structure. A noise reduction device around an idler is proposed.
第１図は従来装置の部分的断面図、第２図は第
１図の−線に沿う断面図で一部省略せる図、
第３図は他の従来装置の部分的断面図、第４図は
第３図の−線に沿う断面図で一部省略せる
図、第５図は本発明装置の側面図、第６図は第５
図の線−に沿う断面図、第７図は本発明の変
形例を示す第６図と同様の図である。
２……アイドラ、４……第一踏面、６Ａ，６Ｂ
……凹溝、８……弾性環状体、８Ａ，８Ｂ……突
条、８Ｃ……本体部、１４……トラツクブツシ
ユ、１６……トラツクリンク、１８……第二踏
面、２８Ａ，２８Ｂ……管状部片、３０Ａ，３０
Ｂ……管孔、３２Ａ，３２Ｂ，３２Ｃ……側壁、
３４Ａ，３４Ｂ，３４Ｃ……ボルト孔、３６……
ボルト、３８……ナツト。
FIG. 1 is a partial cross-sectional view of a conventional device, and FIG. 2 is a cross-sectional view taken along the line - in FIG. 1, with some parts omitted.
FIG. 3 is a partial sectional view of another conventional device, FIG. 4 is a sectional view taken along the line - in FIG. 3 and can be partially omitted, FIG. 5 is a side view of the device of the present invention, and FIG. Fifth
FIG. 7, a sectional view taken along line - in the figure, is a view similar to FIG. 6 showing a modification of the present invention. 2...Idler, 4...First tread, 6A, 6B
...Concave groove, 8...Elastic annular body, 8A, 8B...Protrusion, 8C...Main body, 14...Track bush, 16...Track link, 18...Second tread, 28A, 28B...Tubular Piece, 30A, 30
B... Pipe hole, 32A, 32B, 32C... Side wall,
34A, 34B, 34C... Bolt hole, 36...
Boruto, 38...Natsuto.
Claims (1)
減装置であつて、該アイドラの第一踏面に沿つて
少くとも２本の環状凹溝を形成し、該凹溝に嵌合
する少くとも２本の突条を有するセグメント状の
弾性環状体を第一踏面まわりに周設し、前記アイ
ドラの各凹溝の両側壁および該凹溝内に嵌合され
る弾性環状体の各突条に周方向に適宜間隔を置い
てほぼアイドラ軸と平行に伸びる貫通孔を形成
し、該貫通孔内にアイドラ一側より取付具を挿入
することにより弾性環状体をアイドラに固定し、
該弾性環状体の外周面にてトラツクブツシユを半
径外方に押圧するよりトラツクリンクをアイドラ
の第二踏面より離間せしめるようにし、前記弾性
環状体は前記凹溝外にて前記第一踏面上のほぼ全
面に伸びる本体部を含み、該本体部は第一踏面上
に固着されており、前記弾性環状体の各突条に形
成される貫通孔が該突条内に埋設された剛性管状
部片により形成されていることを特徴とする装軌
式車輌のアイドラまわりにおける騒音低減装置。 ２ 前記突条内に埋設された剛性管状部片が管端
にフランジを有する第１項の装置。[Claims] 1. A noise reduction device around an idler of a tracked vehicle, which comprises forming at least two annular grooves along the first tread surface of the idler and fitting into the grooves. A segment-shaped elastic annular body having at least two protrusions is provided around the first tread surface, and each side wall of each groove of the idler and each protrusion of the elastic annular body fitted in the groove is provided. forming through-holes extending substantially parallel to the idler axis at appropriate intervals in the circumferential direction in the strip, and fixing the elastic annular body to the idler by inserting a fixture into the through-hole from one side of the idler;
The track link is moved away from the second tread surface of the idler by pressing the track button radially outward with the outer peripheral surface of the elastic annular body, and the elastic annular body extends approximately above the first tread surface outside the groove. It includes a main body extending over the entire surface, the main body being fixed on the first tread surface, and a through hole formed in each protrusion of the elastic annular body is formed by a rigid tubular piece embedded in the protrusion. A noise reduction device around an idler of a tracked vehicle, characterized in that: 2. The device of claim 1, wherein the rigid tubular piece embedded within the ridge has a flange at the tube end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14267680A JPS5766074A (en) | 1980-10-13 | 1980-10-13 | Reducer for noise around idler of crawler type vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14267680A JPS5766074A (en) | 1980-10-13 | 1980-10-13 | Reducer for noise around idler of crawler type vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5766074A JPS5766074A (en) | 1982-04-22 |
| JPS6121866B2 true JPS6121866B2 (en) | 1986-05-29 |
Family
ID=15320913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14267680A Granted JPS5766074A (en) | 1980-10-13 | 1980-10-13 | Reducer for noise around idler of crawler type vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5766074A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2753480B2 (en) * | 1992-11-27 | 1998-05-20 | 雅信 池田 | Gasket type window frame and window frame fixing method |
-
1980
- 1980-10-13 JP JP14267680A patent/JPS5766074A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5766074A (en) | 1982-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6145937A (en) | Bicycle wheel rim | |
| US4452097A (en) | Tubular window drive mechanism particularly for motor vehicles | |
| US6634648B1 (en) | Shield and seal assembly for vehicle wheel end assembly | |
| JPH11208201A (en) | Spoke rim assembly, rim and spoke for bicycle | |
| JPS6121866B2 (en) | ||
| JPS6121869B2 (en) | ||
| WO1992004225A1 (en) | Idler wheel assembly | |
| US20010026099A1 (en) | Endless track and a manufacturing method thereof | |
| JPS6121867B2 (en) | ||
| EP0849154B1 (en) | Hollow crank spindle unit for bicycles | |
| EP1253070A2 (en) | Endless track and a manufacturing method thereof | |
| US7159697B1 (en) | Wheel hub pilot protector | |
| KR102200876B1 (en) | Caterpillar pad | |
| JPS6121868B2 (en) | ||
| RU2070520C1 (en) | Grouser to be mounted on base | |
| JPH05278646A (en) | Crawler belt with rubber pad | |
| JP2002321670A (en) | Shoe for crawler belt | |
| KR970074543A (en) | Connector Caterpillar Track with Running Pad | |
| KR970001543Y1 (en) | Bogie wheel | |
| JPS6345386Y2 (en) | ||
| JPH04266577A (en) | Rubber track for crawler vehicle | |
| JPS5837682Y2 (en) | wheel ring | |
| CA2204935A1 (en) | Roller belt arrangement for caterpillar track-type vehicles, especially snowmobiles | |
| GB2215288A (en) | Vehicle wheel assembly with means for maintaining motion in case of deflation | |
| CA1180039A (en) | Vehicle suspension system |