JP2527398Y2 - Work vehicle muffler mounting structure - Google Patents

Work vehicle muffler mounting structure

Info

Publication number
JP2527398Y2
JP2527398Y2 JP1989149464U JP14946489U JP2527398Y2 JP 2527398 Y2 JP2527398 Y2 JP 2527398Y2 JP 1989149464 U JP1989149464 U JP 1989149464U JP 14946489 U JP14946489 U JP 14946489U JP 2527398 Y2 JP2527398 Y2 JP 2527398Y2
Authority
JP
Japan
Prior art keywords
muffler
vibration
body frame
engine
mounting bracket
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
Application number
JP1989149464U
Other languages
Japanese (ja)
Other versions
JPH0386822U (en
Inventor
武志 梶本
義孝 松原
正治 野口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP1989149464U priority Critical patent/JP2527398Y2/en
Publication of JPH0386822U publication Critical patent/JPH0386822U/ja
Application granted granted Critical
Publication of JP2527398Y2 publication Critical patent/JP2527398Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、車体フレームにエンジンを防振支持させて
ある運搬車等、作業車のマフラー取付構造に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a muffler mounting structure for a working vehicle such as a transport vehicle in which an engine is supported on a body frame by vibration isolation.

〔従来の技術〕[Conventional technology]

例えば、作業車の一例である運搬車では、従来、エン
ジンに接続連結した排気管にマフラーを接続状態に支持
させる形式が採られていた(例えば、実公昭59-1850号
公報)。
For example, in a transport vehicle as an example of a work vehicle, a type in which a muffler is supported in a connected state by an exhaust pipe connected to an engine has conventionally been adopted (for example, Japanese Utility Model Publication No. 59-1850).

〔考案が解決しようとする課題〕[Problems to be solved by the invention]

しかしながら、前記従来技術においては、排気管にマ
フラーの支持体としての剛性・強度が要求され、特に、
排気管が片持ち状で先端側にマフラーが付加されたもの
では、排気管のエンジンへの取付基部に応力が集中する
ため、取付基部には大きな剛性・強度が要求される。従
って、マフラーを所望の位置に配置するために排気管が
長くなった場合や、マフラーが大容量で重い場合、排気
管および取付基部に要求される剛性・強度が非常に大と
なり、非常なコストアップを招来する。換言すると、マ
フラー配置やマフラーの容量にコスト面で大きな制約を
受けるといった欠点があった。
However, in the prior art, the exhaust pipe is required to have rigidity and strength as a support for the muffler.
When the exhaust pipe has a cantilever shape and a muffler is added to the distal end side, stress concentrates on the base of the exhaust pipe attached to the engine, so that the mounting base needs to have high rigidity and strength. Therefore, when the exhaust pipe is long to arrange the muffler at a desired position, or when the muffler is large in capacity and heavy, the rigidity and strength required for the exhaust pipe and the mounting base become very large, resulting in a very high cost. Invite up. In other words, there is a disadvantage that the muffler arrangement and the capacity of the muffler are greatly restricted in terms of cost.

本考案の目的は、上記欠点を解消する点にある。 An object of the present invention is to eliminate the above disadvantages.

〔課題を解決するための手段〕[Means for solving the problem]

本考案の特徴構成は、車体フレームにエンジンを防振
支持させてある作業車において、前記車体フレームにマ
フラー取付用ブラケットを防振具を介して吊下げ支持さ
せ、前記エンジンに接続するマフラーをそのマフラー取
付用ブラケットの下端に取付け、このマフラー取付用ブ
ラケットの吊下げ支点となる前記防振具の配設位置を、
側面視で前記車体フレーム上における機体前後方向での
前記マフラーの中心位置の上方近傍の一点に定めて、前
記マフラー取付用ブラケットをその吊下げ支点周りで前
後揺動可能となるように取付けてある点にある。
The feature configuration of the present invention is that, in a work vehicle in which an engine is supported on a vehicle body frame with vibration isolation, a muffler mounting bracket is suspended and supported on the vehicle body frame via a vibration isolator, and a muffler connected to the engine is provided. Attached to the lower end of the muffler mounting bracket, the arrangement position of the anti-vibration device, which serves as a suspension fulcrum of the muffler mounting bracket,
The muffler mounting bracket is mounted so as to be able to swing back and forth around the suspension fulcrum at a point near the center of the muffler in the longitudinal direction of the body on the body frame in a side view. On the point.

〔作用〕[Action]

マフラーをマフラー取付用ブラケットを介して車体フ
レームに支持させてあるため、エンジンとマフラーとを
接続する排気管に、マフラーを支持するための剛性を要
求する必要がない。
Since the muffler is supported on the vehicle body frame via the muffler mounting bracket, there is no need to require an exhaust pipe connecting the engine and the muffler to have rigidity for supporting the muffler.

更に、マフラー取付用ブラケットを車体フレームに防
振具を介して連結させてあるため、マフラーを車体フレ
ームに支持させながらも、防振具の弾性変形により、エ
ンジンの振動に伴うマフラーのエンジンおよび排気管と
の一体的な上下振動が許容され、上下振動にかかわら
ず、マフラーと排気管との接続部や排気管とエンジンと
の接続部等に、破損の原因となる上下方向の無理な力を
作用させることがない。
Furthermore, since the muffler mounting bracket is connected to the vehicle body frame via a vibration isolator, the muffler engine and exhaust due to engine vibration due to the engine vibration due to the elastic deformation of the vibration isolator while supporting the muffler on the vehicle body frame. Vertical vibration that is integral with the pipe is allowed, and regardless of vertical vibration, excessive force in the vertical direction that may cause damage is applied to the connection between the muffler and the exhaust pipe and the connection between the exhaust pipe and the engine. It does not work.

その上、マフラー取付用ブラケットの車体フレームへ
の支持形式を吊下げ式とし、かつ、マフラー取付用ブラ
ケットの吊下げ支点となる防振具の配設位置を、側面視
で車体フレーム上における機体前後方向での一点に定め
てあるため、マフラーを車体フレームに支持させながら
も、防振具を支点とするマフラー取付用ブラケットの前
後揺動により、エンジン振動に伴なうマフラーのエンジ
ンおよび排気管との一体的な前後振動が円滑に許容さ
れ、前後振動にかかわらず、先述の各接続部等に破損の
原因となる前後方向の無理な力を作用させることがな
い。
In addition, the support type of the muffler mounting bracket to the body frame is a suspension type, and the position of the anti-vibration device, which is the suspension fulcrum of the muffler mounting bracket, is set to the front and rear of the body on the body frame in side view. Because it is set at one point in the direction, the muffler is supported by the body frame, but the muffler mounting bracket with the vibration isolator as the fulcrum swings back and forth, causing the muffler engine and exhaust pipe to accompany the engine vibration. The integrated longitudinal vibration is smoothly tolerated, and regardless of the longitudinal vibration, an unreasonable force in the longitudinal direction which causes damage is not applied to each of the above-described connection portions.

しかも、マフラー取付用ブラケットの吊下げ支点とな
る防振具の配設位置を機体前後方向でのマフラーの中心
位置の上方近傍の一点に定めてあることから、マフラー
がエンジンや排気管と一体的に上下および前後に振動す
る際に、防振具に対して偏荷重が作用することを防止で
きるようになる。つまり、吊下げ支持されたマフラーの
上下振動および前後振動をより円滑に無理なく許容でき
ることから、マフラーの上下方向および前後方向の自由
度を大きくすることができるとともに、吊下げ支点とな
る防振具の耐久性の向上を図れるようになる。
In addition, the muffler is integrated with the engine and exhaust pipe because the location of the anti-vibration device, which is the suspension fulcrum of the muffler mounting bracket, is set at a point near the center of the muffler in the longitudinal direction of the fuselage. When the vibration vibrates up and down and back and forth, it is possible to prevent the unbalanced load from acting on the vibration isolator. That is, since the vertical vibration and the longitudinal vibration of the suspended muffler can be smoothly and tolerated smoothly, the degree of freedom in the vertical and longitudinal directions of the muffler can be increased, and the vibration isolator serving as the suspension fulcrum Can be improved in durability.

〔考案の効果〕[Effect of the invention]

従って、本考案によれば、マフラーの配置および容量
の自由度が高く、しかも、安価に実施できて耐久性の向
上を図ることのできる作業車のマフラー取付を提供でき
るようになった。
Therefore, according to the present invention, it is possible to provide a muffler attachment for a working vehicle which has a high degree of freedom in the arrangement and capacity of the muffler, can be implemented at low cost, and can improve durability.

〔実施例〕〔Example〕

本考案の実施例を次に示す。 An embodiment of the present invention will be described below.

作業車の一例である運搬車は、第5図に示すように、
走行装置として左右一対のクローラ走行装置(1)を備
え、荷台として、後部を支点として上下揺動自在なダン
プ荷台(2)を備えている。
As shown in FIG. 5, a transport vehicle, which is an example of a work vehicle,
The vehicle includes a pair of left and right crawler traveling devices (1) as a traveling device, and a dump carrier (2) that can swing up and down around a rear portion as a carrier.

そして、前記ダンプ荷台(2)の前方箇所のうち左右
方向のほぼ中央部には、エンジン(3)が配置されてお
り、そのエンジン(3)の左右一側部には運転部(4)
が配設されている。
An engine (3) is arranged at a substantially central portion in the left-right direction of the front portion of the dump carrier (2), and an operating unit (4) is provided on one left and right side of the engine (3).
Are arranged.

前記エンジン(3)は、第3図及び第4図に示すよう
に、後部に油圧ポンプユニット(5)を連結している。
この油圧ポンプユニット(5)は、前記クローラ走行装
置(1)を駆動する2ポンプ−2モータ型の油圧式無段
変速装置における2つのポンプ(5A)と、前記ダンプ荷
台(3)を揺動するためのダンプシリンダ(3A)等に圧
油供給するための作業用ポンプ(5B)と、油圧式無段変
速装置のチャージポンプ(5C)とを備えている。
As shown in FIGS. 3 and 4, the engine (3) has a hydraulic pump unit (5) connected to a rear portion thereof.
The hydraulic pump unit (5) swings the two pumps (5A) in the two-pump two-motor type hydraulic continuously variable transmission that drives the crawler traveling device (1) and the dump carrier (3). And a work pump (5B) for supplying pressure oil to a dump cylinder (3A) and the like, and a charge pump (5C) for a hydraulic continuously variable transmission.

そして、エンジン(3)は、前記クローラ走行装置
(1)のトラックフレーム(1A)に連結支持させた車体
フレーム(6)に、前後左右の計4つの防振ゴム(7)
を介して防振支持されている。
The engine (3) is mounted on a body frame (6) connected and supported to a track frame (1A) of the crawler traveling device (1) by a total of four front, rear, left and right anti-vibration rubbers (7).
It is supported through vibration isolation.

加えて、前記エンジン(3)に排気管(8)を介して
接続するマフラー(9)は、第1図及び第2図に示すよ
うに、軸芯方向一端側の側面部に排気管(8)との接続
筒(9A)を突設し、軸芯方向他端側の側面部に排気管
(9B)を突設した円筒状のものであって、軸芯を左右横
向きとさせる姿勢に配置されている。
In addition, as shown in FIGS. 1 and 2, a muffler (9) connected to the engine (3) via an exhaust pipe (8) is provided on the side of the exhaust pipe (8) at one end in the axial center direction. ) With a connecting cylinder (9A) protruding, and an exhaust pipe (9B) protruding from the side surface on the other end side in the axial direction. Have been.

前記マフラー(9)の取付構造は、前記車体フレーム
(6)に左右一対のマフラー取付用ブラケット(10)の
夫々を防振ゴム(11)とボルト・ナット(12)とを介し
て吊下げ支持させ、それらマフラー取付用ブラケット
(10)の下端のマフラー受け部(10a)にマフラー
(9)の軸芯方向への2箇所をバンド(13)を介して取
付け、前記マフラー取付用ブラケット(10)の夫々に対
する防振ゴム(11)を、側面視で車体フレーム(6)上
における機体前後方向でのマフラー(9)の中心位置の
上方近傍の一点に位置するように左右方向に並べて配置
したものである。前記防振ゴム(11)とマフラー取付用
ブラケット(10)と車体フレーム(6)との取合い部
は、車体フレーム(6)上に防振ゴム(11)を載置し、
その防振ゴム(11)上にマフラー取付用ブラケット(1
0)の取付片(10b)を載置する構造となっている。(1
4)はバンド(13)を締付け状態に固定するためのボル
ト・ナットである。
The mounting structure of the muffler (9) is configured such that a pair of left and right muffler mounting brackets (10) are suspended from the vehicle body frame (6) via vibration-proof rubber (11) and bolts and nuts (12). The muffler mounting bracket (10) is attached to the muffler receiving portion (10a) at the lower end of the muffler mounting bracket (10) at two locations in the axial direction of the muffler (9) via a band (13). The rubber dampers (11) are arranged side by side so as to be located at a point near the center of the muffler (9) in the longitudinal direction of the vehicle body on the body frame (6) when viewed from the side. It is. Attachment portions of the anti-vibration rubber (11), the muffler mounting bracket (10), and the body frame (6) are provided with the anti-vibration rubber (11) mounted on the body frame (6),
The muffler mounting bracket (1
0) The mounting piece (10b) is placed. (1
4) bolts and nuts for fixing the band (13) in a tightened state.

(15)はエアークリーナ、(16)はボンネット、(1
7)はラジエータ、(18)は冷却ファンである。
(15) is an air cleaner, (16) is a hood, (1)
7) is a radiator, and (18) is a cooling fan.

〔別実施例〕(Another embodiment)

本考案の別実施例を以下に示す。 Another embodiment of the present invention is shown below.

[1]上記実施例では、2つのマフラー取付用ブラケッ
ト(10)でマフラー(9)を吊下げ支持するようにした
が、マフラー取付用ブラケット(10)の個数は、1つや
3つ以上等、適宜変更可能である。
[1] In the above embodiment, the muffler (9) is suspended and supported by the two muffler mounting brackets (10), but the number of the muffler mounting brackets (10) is one, three or more. It can be changed as appropriate.

[2]上記実施例では、1つのマフラー取付用ブラケッ
ト(10)を1つの防振具(11)で車体フレーム(6)に
防振支持させたが、1つのマフラー取付用ブラケット
(10)を複数の防振具(11)で車体フレーム(6)に防
振支持させても良い。この場合、防振具(11)の配設位
置を、側面視で車体フレーム(6)上における機体前後
方向での一点に定めることが肝要である。
[2] In the above embodiment, one muffler mounting bracket (10) is supported on the vehicle body frame (6) by one vibration isolator (11). However, one muffler mounting bracket (10) is used. A plurality of vibration isolators (11) may be supported on the vehicle body frame (6). In this case, it is important to set the disposition position of the vibration isolator (11) at one point in the longitudinal direction of the vehicle body on the body frame (6) in a side view.

[3]上記実施例では、マフラー取付用ブラケット(1
0)の取付片(10b)を防振具(11)に載せ付ける形式の
取合い部を示したが、取合い部としては、車体フレーム
(6)に防振具(11)を吊下げ支持させ、その防振具
(11)に取付片(10b)を吊下げ支持させるものであっ
ても良い。
[3] In the above embodiment, the muffler mounting bracket (1
The mounting portion of the type in which the mounting piece (10b) of (0) is placed on the vibration isolator (11) is shown. As the mounting portion, the vibration isolator (11) is suspended and supported on the body frame (6). The mounting piece (10b) may be suspended from the vibration isolator (11).

[4]上記実施例では、防振具(11)として防振ゴムを
示したが、防振具(11)は、コイルバネや、コイルバネ
とダンパとを組合せたもの等であっても良い。
[4] In the above embodiment, the rubber is used as the vibration isolator (11). However, the vibration isolator (11) may be a coil spring or a combination of a coil spring and a damper.

[5]尚、実用新案登録請求の範囲の項に図面との対照
を便利にする為に符号を記すが、該記入に寄り本考案は
添付図面の構造に限定されるものではない。
[5] In the claims of the utility model registration, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the structure of the attached drawings.

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

図面は本考案の実施例を示し、第1図は要部の拡大側面
図、第2図は要部の拡大平面図、第3図は要部の縦断背
面図、第4図は要部の縦断側面図、第5図は側面図であ
る。 (3)……エンジン、(6)……車体フレーム、(9)
……マフラー、(10)……マフラー取付用ブラケット、
(11)……防振具。
1 is an enlarged side view of a main part, FIG. 2 is an enlarged plan view of the main part, FIG. 3 is a longitudinal rear view of the main part, and FIG. FIG. 5 is a side view. (3) ... engine (6) ... body frame (9)
…… muffler, (10) …… muffler mounting bracket,
(11) ... An anti-vibration device.

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭60−82437(JP,A) 実開 昭58−113526(JP,U) 実開 昭61−37023(JP,U) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-82437 (JP, A) JP-A-58-113526 (JP, U) JP-A-61-37023 (JP, U)

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項1】車体フレーム(6)にエンジン(3)を防
振支持させてある作業車において、前記車体フレーム
(6)にマフラー取付用ブラケット(10)を防振具(1
1)を介して吊下げ支持させ、前記エンジン(3)に接
続するマフラー(9)をそのマフラー取付用ブラケット
(10)の下端に取付け、このマフラー取付用ブラケット
(10)の吊下げ支点となる前記防振具(11)の配設位置
を、側面視で前記車体フレーム(6)上における機体前
後方向での前記マフラー(9)の中心位置の上方近傍の
一点に定めて、前記マフラー取付用ブラケット(10)を
その吊下げ支点周りで前後揺動可能となるように取付け
てある作業車のマフラー取付構造。
1. A work vehicle in which an engine (3) is supported on a vehicle body frame (6) in a vibration-proof manner. A bracket (10) for attaching a muffler is mounted on the vehicle body frame (6).
The muffler (9) connected to the engine (3) is attached to the lower end of the muffler mounting bracket (10) and suspended from the lower end of the muffler mounting bracket (10). The disposition position of the vibration isolator (11) is determined at a point near the center position of the muffler (9) in the vehicle longitudinal direction on the vehicle body frame (6) in a side view, and the muffler mounting A muffler mounting structure for a working vehicle in which the bracket (10) is mounted so as to be able to swing back and forth around its suspension fulcrum.
JP1989149464U 1989-12-25 1989-12-25 Work vehicle muffler mounting structure Expired - Lifetime JP2527398Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989149464U JP2527398Y2 (en) 1989-12-25 1989-12-25 Work vehicle muffler mounting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989149464U JP2527398Y2 (en) 1989-12-25 1989-12-25 Work vehicle muffler mounting structure

Publications (2)

Publication Number Publication Date
JPH0386822U JPH0386822U (en) 1991-09-03
JP2527398Y2 true JP2527398Y2 (en) 1997-02-26

Family

ID=31695856

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989149464U Expired - Lifetime JP2527398Y2 (en) 1989-12-25 1989-12-25 Work vehicle muffler mounting structure

Country Status (1)

Country Link
JP (1) JP2527398Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006257932A (en) * 2005-03-16 2006-09-28 Shin Caterpillar Mitsubishi Ltd Muffler installing device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5712133A (en) * 1980-06-24 1982-01-22 Nissin Kogyo Kk Disk brake
JPS59122643A (en) * 1982-12-27 1984-07-16 ミサワホ−ム株式会社 Connection structure of lattice beam
JPS6082437A (en) * 1983-10-14 1985-05-10 Toyota Motor Corp Exhaust apparatus installation structure

Also Published As

Publication number Publication date
JPH0386822U (en) 1991-09-03

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