JP2001012244A - Oil cooler piping structure of construction machine - Google Patents

Oil cooler piping structure of construction machine

Info

Publication number
JP2001012244A
JP2001012244A JP17716199A JP17716199A JP2001012244A JP 2001012244 A JP2001012244 A JP 2001012244A JP 17716199 A JP17716199 A JP 17716199A JP 17716199 A JP17716199 A JP 17716199A JP 2001012244 A JP2001012244 A JP 2001012244A
Authority
JP
Japan
Prior art keywords
oil cooler
elastic hose
oil
hose
swing
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.)
Granted
Application number
JP17716199A
Other languages
Japanese (ja)
Other versions
JP3501979B2 (en
Inventor
Yoshinobu Suzuki
義信 鈴木
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.)
Sumitomo SHI Construction Machinery Co Ltd
Original Assignee
Sumitomo SHI Construction Machinery Co Ltd
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 Sumitomo SHI Construction Machinery Co Ltd filed Critical Sumitomo SHI Construction Machinery Co Ltd
Priority to JP17716199A priority Critical patent/JP3501979B2/en
Publication of JP2001012244A publication Critical patent/JP2001012244A/en
Application granted granted Critical
Publication of JP3501979B2 publication Critical patent/JP3501979B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
    • E02F9/0875—Arrangement of valve arrangements on superstructures
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2275—Hoses and supports therefor and protection therefor

Abstract

PROBLEM TO BE SOLVED: To reduce the manufacturing cost and to improve the reliability to the oil leakage by swing-out possibly mounting an oil cooler on a front face of a radiator and the like, and connecting pipes to obtain the maximum bending of an elastic hose in a swing-in state of the oil cooler. SOLUTION: A rotary supporting component 21 such as a hinge and the like is mounted on an end part at a predetermined boundary face 30 side, of an oil cooler 13, and the oil cooler 13 is supported rotatably at the center on a point of rotation 21a. One end of an elastic hose 27a such as a rubber hose and the like is connected to an oil inlet pipe 21a of the oil cooler 13 through a connecting component 24, and the other end of the elastic hose 27a is connected to an oil supply pipe 25 through a connecting component 26. A connecting member 26a of the connecting component 26 is formed with an angle so that the elastic hose 27a can be prevented from being entered inside with respect to the boundary face 30 when the oil cooler 13 is swung out. Further the total length of the elastic hose 27a is elongated for preventing the generation of large torsion in the swinging-out of the oil cooler 13.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】この発明は、建設機械のオイ
ルクーラ配管構造の技術分野に属する。更に、詳細に
は、スイングアウト可能にしたオイルクーラの供給側及
び排出側の配管構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of an oil cooler piping structure for a construction machine. More specifically, the present invention relates to a piping structure on a supply side and a discharge side of an oil cooler capable of swinging out.

【０００２】[0002]

【従来の技術】従来からオイルクーラはエンジンラジエ
ータの前面に僅かな隙間をおいて重ねて配置されてい
る。ラジエータ及びオイルクーラの熱交換部分の配管の
掃除を容易にするためにオイルクーラの一側を軸にして
回動可能にしたスイングアウト方式が従来から採用され
ている。スイングアウト方式を採用した場合に、回動部
分の構造とオイルクーラへ給排油する配管の接続構造が
問題となり、従来からいろいろ工夫されている。以下、
これらの従来技術について説明する。2. Description of the Related Art Conventionally, an oil cooler has been arranged on a front surface of an engine radiator with a slight gap therebetween. 2. Description of the Related Art In order to facilitate cleaning of a pipe in a heat exchange portion of a radiator and an oil cooler, a swing-out method in which the oil cooler is rotatable about one side as an axis has been conventionally used. When the swing-out method is adopted, the structure of the rotating part and the connection structure of the pipes for supplying and discharging oil to and from the oil cooler are problematic, and various methods have been conventionally devised. Less than,
These conventional techniques will be described.

【０００３】図４〜図６は実用新案公報第平８−７０５
８号に記載されている従来の配管構造（以下従来装置１
という）を示す。図４は正面図、図５はスイングイン状
態の平面図、図６はスイングアウトしたときの平面図を
示す。図４〜図６において、エンジンラジエータ１１の
前側に僅かなスペース１２をおいてオイルクーラ１３が
取り付けられている。オイルクーラの一側面とラジエー
タの同一側面に蝶番１５の両端が固設され、オイルクー
ラ１３が回動可能（スイングアウト可能）に設けられて
いる。また、スイベルジョイント１６の回転中心軸は蝶
番１５の開閉軸と同一軸上になるように、スイベルジョ
イント１６は入出導管１７ａ、１７ｂによりオイルクー
ラ側端に固設されている。供給管１８ａ及び排出管１８
ｂはスイベルジョイント１６の本体中央部に固設されて
いる。FIGS. 4 to 6 show utility model publication No. 8-705.
No. 8 (hereinafter referred to as conventional device 1).
). 4 is a front view, FIG. 5 is a plan view in a swing-in state, and FIG. 6 is a plan view in a swing-out state. 4 to 6, an oil cooler 13 is attached to a front side of an engine radiator 11 with a small space 12 therebetween. Both ends of the hinge 15 are fixed to one side surface of the oil cooler and the same side surface of the radiator, and the oil cooler 13 is rotatably provided (swing-out possible). The swivel joint 16 is fixed to the oil cooler side end by inlet / outlet conduits 17a and 17b so that the rotation center axis of the swivel joint 16 is coaxial with the opening / closing axis of the hinge 15. Supply pipe 18a and discharge pipe 18
“b” is fixed to the center of the main body of the swivel joint 16.

【０００４】従来装置１は上記の構成により、オイルク
ーラ１３は蝶番１５によって回動可能に構成されると共
に、スイベルジョイントの回転軸も同じ軸上に設けら
れ、かつ、入出導管１７ａ、１７ｂと給排管１８ａ、１
８ｂとの油路が各々導通されているので、スイングアウ
トの動作が可能な構造となっている。In the conventional apparatus 1, the oil cooler 13 is configured to be rotatable by the hinge 15 with the above-described configuration, the rotation shaft of the swivel joint is also provided on the same axis, and the supply / reception conduits 17a and 17b are connected to the supply shaft. Drainage tube 18a, 1
Since the oil passages 8b and 8b are electrically connected, a swing-out operation is possible.

【０００５】図７〜図９は公開特許公報第平１１−８２
０２３号に記載されている従来の配管構造（以下従来装
置２という）を示す。図７は正面図、図８は平面図、図
９は接続部分の詳細断面図を示す。従来装置１と同一構
成要素には同じ参照番号を付す。図７、図８において、
入出導管１７ａ、１７ｂがオイルクーラ１３に接続さ
れ、入出導管１７ａ、１７ｂと供給管１８ａ及び排出管
１８ｂの油路が各々接続されている。入出導管１７ａ、
１７ｂと給排管１８ａ、１８ｂの接続及び回動は、図９
に示すような構成になっている。FIGS. 7 to 9 show published Japanese Patent Application No. 11-82.
2 shows a conventional piping structure described in Japanese Patent No. 023 (hereinafter referred to as a conventional device 2). 7 is a front view, FIG. 8 is a plan view, and FIG. 9 is a detailed cross-sectional view of a connection portion. The same components as those of the conventional device 1 are denoted by the same reference numerals. 7 and 8,
The inlet / outlet conduits 17a and 17b are connected to the oil cooler 13, and the inlet / outlet conduits 17a and 17b are connected to the oil passages of the supply pipe 18a and the discharge pipe 18b, respectively. The inlet / outlet conduit 17a,
FIG.
The configuration is as shown in FIG.

【０００６】即ち、入出導管１７ａ、１７ｂの端部は外
周が細い径に形成され、一方、供給管１８ａ及び排出管
１８ｂの端部は、内径が入出導管１７ａ、１７ｂの端部
外周が嵌合可能でかつ回転可能に形成されている。同時
に、この嵌合部分によりオイルクーラ１３が支持可能に
形成されている。また、両者の間にオイルシール１９が
挿入され、油漏れが生じない構成になっている。従来装
置２は上記嵌合部分によりオイルクーラ１３への油の供
給、排出が可能であると共にスイングアウトも可能な構
成になっている。That is, the ends of the inlet / outlet conduits 17a, 17b are formed with a small diameter at the outer periphery, while the ends of the supply pipe 18a and the discharge pipe 18b are fitted with the outer periphery of the inner end of the inlet / outlet conduit 17a, 17b. It is formed so as to be rotatable and rotatable. At the same time, the oil cooler 13 can be supported by this fitting portion. Further, an oil seal 19 is inserted between the two so that oil leakage does not occur. The conventional device 2 is configured to be able to supply and discharge oil to and from the oil cooler 13 by the above-mentioned fitting portion, and also possible to swing out.

【０００７】従来装置１はスイベルジョイントを使用す
るため、装置が高価になるという課題があり、また、蝶
番とスイベルジョイントの回転軸を一致させる必要があ
り、取付作業が複雑になるという課題がある。従来装置
２ではスイベルジョイントを使用していないが嵌合部分
の工作が精度を要するため加工費が高くなるという課題
があった。特に、油漏れに対する信頼性を向上させよう
とするとコストが高くなり、課題であった。コストを安
くした装置として、図１０〜図１２に示す装置（以下、
従来装置３という）が従来から知られている。従来装置
３は、図１０〜図１２に示すように、入出導管１７ａ、
１７ｂに直接ゴムホース２０ａ、２０ｂを接続した構成
になっている。The conventional device 1 uses a swivel joint, so there is a problem that the device is expensive, and it is necessary to make the rotation axis of the hinge and the swivel joint coincide with each other, so that there is a problem that the mounting operation becomes complicated. . Although the conventional device 2 does not use a swivel joint, there is a problem that the machining cost is high because machining of the fitting portion requires precision. In particular, an attempt to improve the reliability against oil leaks increases costs, which is a problem. As an apparatus with reduced cost, an apparatus shown in FIGS.
Conventional device 3) is conventionally known. As shown in FIGS. 10 to 12, the conventional device 3 includes an inlet / outlet conduit 17 a,
The rubber hoses 20a and 20b are directly connected to the rubber hose 17b.

【０００８】従来装置３は低コストで製作可能である。
しかし、オイルクーラ１３をスイングアウトしたときに
ゴムホース２０ａ（及び２０ｂ）の曲がりが大きく（曲
率半径が小さく、図１２参照）なり、更に、ねじりも生
じ、ゴムホース２０ａにひび等が生じ易くなるという課
題があった。また、ゴムホース２０ａの曲がりのための
スペースを確保しておく必要があり、コンパクトな機器
の配置構造が困難となり、課題であった。The conventional device 3 can be manufactured at low cost.
However, when the oil cooler 13 is swung out, the rubber hose 20a (and 20b) has a large bend (a small radius of curvature, see FIG. 12), and furthermore, a torsion occurs, and the rubber hose 20a is liable to crack. was there. In addition, it is necessary to secure a space for bending the rubber hose 20a, which makes it difficult to arrange a compact device, which is a problem.

【０００９】[0009]

【発明が解決しようとする課題】従来装置１、２は製作
コストが高価となり、課題であった。また、従来装置３
はゴムホースにひびが入る等の課題や余分なスペースを
確保しておく必要があり課題であった。この発明は、上
述のような背景の下になされたもので、安価で上記課題
も生じない配管構造を提供することを目的としている。The conventional apparatuses 1 and 2 have been problematic because the production cost is high. Conventional device 3
The problem was that the rubber hose had to be cracked and that extra space had to be secured. The present invention has been made under the above-described background, and has as its object to provide a piping structure that is inexpensive and does not cause the above-described problems.

【００１０】[0010]

【課題を解決するための手段】上記課題を解決するため
に本発明は以下の手段を採用している。即ち、請求項１
記載の発明は、油圧ショベル等の建設機械のオイルクー
ラ配管構造において、ラジエータ等の前面にオイルクー
ラをスイングアウト可能に設け、該オイルクーラの供給
側及び排出側の配管の一部を弾性ホースで構成し、オイ
ルクーラのスイングイン状態で該弾性ホースの曲がりが
最大で、該オイルクーラをスイングアウトするときに該
弾性ホースの曲がりが減少するように接続配管したこと
を特徴としている。The present invention employs the following means to solve the above-mentioned problems. That is, claim 1
The described invention provides an oil cooler piping structure for a construction machine such as a hydraulic shovel, in which an oil cooler is swingably provided on a front surface of a radiator or the like, and a part of piping on a supply side and a discharge side of the oil cooler is provided by an elastic hose. The connecting pipe is provided so that the bending of the elastic hose is maximum when the oil cooler is swinging in, and the bending of the elastic hose is reduced when the oil cooler swings out.

【００１１】請求項２記載の発明は、請求項１に記載の
発明において、前記弾性ホースは、該クーラをスイング
アウトしたときに該オイルクーラの側面方向に対して該
弾性ホースの最大変位が所定範囲を越えないように該ホ
ースの接続部を斜めに設けたことをを特徴としている。According to a second aspect of the present invention, in the first aspect of the present invention, the elastic hose has a predetermined maximum displacement of the elastic hose with respect to a lateral direction of the oil cooler when the cooler swings out. The connection portion of the hose is provided obliquely so as not to exceed the range.

【００１２】請求項３記載の発明は、請求項１又は請求
項２に記載の発明において、前記弾性ホースは、前記オ
イルクーラをスイングアウトしたときに該弾性ホースの
捻りが所定の範囲に収まるように該弾性ホースの両端の
接続部の位置の高低差を小さくし、かつ、該弾性ホース
の長さを十分な長さとしたたことを特徴としている。According to a third aspect of the present invention, in the first or second aspect of the present invention, the elastic hose is configured so that the torsion of the elastic hose falls within a predetermined range when the oil cooler swings out. Further, the height difference between the positions of the connection portions at both ends of the elastic hose is reduced, and the length of the elastic hose is set to a sufficient length.

【００１３】[0013]

【発明の実施形態】図１は本発明の実施形態を示す平面
図で、スイングインの状態を示し、図２はスイングアウ
トした状態を示す。図３は本実施形態の正面図を示す。
以下、図面を参照してこの発明の実施形態について説明
する。図１〜図３において、ラジエータ１１の前面側に
は除塵ネット１１ａが設けられている。除塵ネット１１
ａの前面にオイルクーラ１３が配置されている。オイル
クーラ１３の左側端に蝶番等の回動支持部品２１が取り
付けられており、オイルクーラ１３は回動点２１ａを中
心に回動自在に支持されている。オイルクーラ１３の上
端部及び下端部の略中央にオイル入口管２２ａ及び出口
管２２ｂの一端がオイルクーラの冷却管（図示省略）と
接続されており、他端にはゴムホース接続用の接続部品
２４が取り付けられている。なお、オイル入口管２２ａ
及び出口管２２ｂは金属製パイプ又は樹脂製パイプ等で
構成されている。FIG. 1 is a plan view showing an embodiment of the present invention, showing a state of swing-in, and FIG. 2 shows a state of swing-out. FIG. 3 shows a front view of the present embodiment.
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 3, a dust removing net 11a is provided on the front side of the radiator 11. Dust removal net 11
The oil cooler 13 is arranged on the front of a. A rotation support component 21 such as a hinge is attached to the left end of the oil cooler 13, and the oil cooler 13 is rotatably supported around a rotation point 21 a. One end of an oil inlet pipe 22a and one end of an outlet pipe 22b are connected to a cooling pipe (not shown) of the oil cooler at substantially the center of the upper end and the lower end of the oil cooler 13, and a connecting part 24 for connecting a rubber hose is provided at the other end. Is attached. The oil inlet pipe 22a
The outlet pipe 22b is made of a metal pipe or a resin pipe.

【００１４】ゴムホース等の弾性ホース２７ａ（及び２
７ｂ）の一端が接続部品２４の接続部材２４ａによりオ
イル入口管２２ａ（及び出口管２２ｂ）に接続され、弾
性ホース２７ａ（２７ｂ）の他端は接続部品２６の接続
部材２６ａを介してオイル供給管２５（及び、図示省略
のオイル戻り管）に接続されている。また、オイル供給
管２５（及び、図示省略のオイル戻り管）の端部はオイ
ルクーラ１３の後方（図１、２の上方）に配設されてい
る。従って、図１に示すように、スイングイン状態では
弾性ホース２７ａ（及び２７ｂ）は曲がった状態で接続
されている。An elastic hose 27a such as a rubber hose (and 2)
7b) is connected to the oil inlet pipe 22a (and the outlet pipe 22b) by the connecting member 24a of the connecting part 24, and the other end of the elastic hose 27a (27b) is connected to the oil supply pipe via the connecting member 26a of the connecting part 26. 25 (and an oil return pipe not shown). Further, an end of the oil supply pipe 25 (and an oil return pipe not shown) is disposed behind the oil cooler 13 (above FIG. 1 and FIG. 2). Therefore, as shown in FIG. 1, in the swing-in state, the elastic hoses 27a (and 27b) are connected in a bent state.

【００１５】接続部品２６の弾性ホース側の接続部材２
６ａは弾性ホース２７ａ（２７ｂ）が所定の角度で接続
されるように角度をつけて固設されている。即ち、オイ
ルクーラ１３をスイングアウトしたときに弾性ホース２
７ａ（２７ｂ）が所定の境界面３０より内部に（図の左
側斜線領域）入らないように接続部材２６ａに角度がつ
けられている。また、弾性ホース２７ａ（及び２７ｂ）
の両端、即ち、接続部品２４の接続部材の２４ａの接続
端と、接続部品２６の接続部材の２６ａの接続端との垂
直距離Ｈはなるべく小さくして、また弾性ホース２７ａ
（及び２７ｂ）の全長を長くしてオイルクーラ１３をス
イングアウトしたときでも所定値以上の大きなねじりが
弾性ホース２７ａ（及び２７ｂ）に生じないように配設
されている。なお、所定値は許容値以下の適当な値に定
める。The connecting member 2 on the elastic hose side of the connecting part 26
6a is fixed at an angle so that the elastic hoses 27a (27b) are connected at a predetermined angle. That is, when the oil cooler 13 swings out, the elastic hose 2
The connecting member 26a is angled so that 7a (27b) does not enter inside the predetermined boundary surface 30 (the shaded area on the left side in the figure). Also, the elastic hose 27a (and 27b)
, That is, the vertical distance H between the connecting end of the connecting member 24a of the connecting member 26 and the connecting end of the connecting member 26a of the connecting member 24 is made as small as possible.
The elastic hoses 27a (and 27b) are arranged so that even when the oil cooler 13 swings out by lengthening the overall length of the elastic hoses (and 27b), a large torsion of a predetermined value or more does not occur in the elastic hoses 27a (and 27b). The predetermined value is set to an appropriate value equal to or smaller than the allowable value.

【００１６】本実施形態は以上の様な配管構造であり、
以下のように機能する。即ち、スイングイン状態（図１
の状態）では弾性ホース２７ａ（２７ｂ）は曲がった状
態にある。しかし、この曲がりの程度（最大曲率）は許
容値以下に設定されており、弾性ホース２７ａ（２７
ｂ）に疲労やひびが入る等の不都合は生じない。また、
オイルクーラ１３をスイングアウトした状態（図２の状
態）においては、弾性ホース２７ａ（２７ｂ）は徐々に
曲がりの程度が緩和される。この際の弾性ホース２７ａ
（２７ｂ）は所定の境界面３０の内側（図１の斜線部）
に入ることなくスイングアウトされた状態になる。従っ
て、所定の境界面を適当に定めておけば、その内側（斜
線部）には、自由に他の機器類を配置してもよい。The present embodiment has the above-described piping structure.
It works as follows. That is, the swing-in state (FIG. 1)
State), the elastic hose 27a (27b) is in a bent state. However, the degree of this bend (maximum curvature) is set to an allowable value or less, and the elastic hose 27a (27)
There is no inconvenience such as fatigue or cracking in b). Also,
In a state in which the oil cooler 13 is swung out (the state in FIG. 2), the degree of bending of the elastic hose 27a (27b) is gradually reduced. The elastic hose 27a at this time
(27b) is inside the predetermined boundary surface 30 (hatched portion in FIG. 1)
Swing out without entering. Therefore, if a predetermined boundary surface is appropriately determined, other devices may be freely disposed inside (a hatched portion).

【００１７】また、スイングイン状態からスイングアウ
ト状態に変化するときに、弾性ホース２７ａ（２７ｂ）
は徐々に捻りが生じる。しかし、この場合に接続部材の
接続端の間の垂直距離Ｈを小さくし、また、弾性ホース
２７ａ（２７ｂ）の長さを長くとってあるので捻りが生
じたとしてもその値は十分に小さく（許容値以下に）取
っているので不都合は生じない。When changing from the swing-in state to the swing-out state, the elastic hose 27a (27b)
Gradually twists. However, in this case, since the vertical distance H between the connection ends of the connection members is reduced, and the length of the elastic hose 27a (27b) is long, even if twisting occurs, the value is sufficiently small ( There is no inconvenience because it is below the allowable value.

【００１８】以上に説明したように、本実施形態によれ
ば、オイルクーラの回動部分にゴムホース等の弾性ホー
スを使用しているので、製作コストが安くなるという効
果がある。また、油漏れに対する信頼性が維持されると
いう効果もある。更に、スイングアウトするときに弾性
ホースは所定の境界面より内側に入らないので、他の機
器類を配置する上でスペースのコンパクト化ができると
いう効果が得られる。また、弾性ホースは大きな捻りや
曲げが生じないように構成されているので、装置の寿命
が永くなるという効果もある。As described above, according to the present embodiment, since the elastic hose such as the rubber hose is used for the rotating portion of the oil cooler, the production cost is reduced. In addition, there is an effect that reliability against oil leakage is maintained. Further, since the elastic hose does not enter the inside of the predetermined boundary surface when swinging out, an effect is obtained that the space can be made compact when other devices are arranged. In addition, since the elastic hose is configured not to cause large twisting or bending, there is also an effect that the life of the device is prolonged.

【００１９】以上、この発明の実施形態、実施例を図面
により詳述してきたが、具体的な構成はこの実施例に限
られるものではなく、この発明の要旨を逸脱しない範囲
の設計の変更等があってもこの発明に含まれる。The embodiments and examples of the present invention have been described in detail with reference to the drawings. However, the specific configuration is not limited to the examples, and changes in design and the like may be made without departing from the gist of the present invention. Even if there is, it is included in the present invention.

【００２０】[0020]

【発明の効果】以上説明したように、この発明の構成に
よれば、弾性ホースを使用しているので、製作コストが
安くなるという効果及び油漏れに対する信頼性が維持さ
れるという効果がある。また、他の機器類を配置する上
でスペースのコンパクト化ができるという効果が得られ
る。さらに、請求項３に記載の発明では、弾性ホースは
大きな捻りや曲げが生じないように構成されているの
で、装置の寿命が永くなるという効果もある。As described above, according to the structure of the present invention, since the elastic hose is used, the production cost is reduced and the reliability against oil leakage is maintained. Further, there is an effect that the space can be made compact when other devices are arranged. Furthermore, according to the third aspect of the present invention, since the elastic hose is configured so as not to cause large twisting or bending, there is an effect that the life of the device is prolonged.

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

【図１】 本願発明の実施形態のスイングイン状態の平
面図を示す。FIG. 1 is a plan view showing a swing-in state according to an embodiment of the present invention.

【図２】 本実施形態のスイングアウトした状態の平面
図を示す。FIG. 2 is a plan view showing a swing-out state of the embodiment.

【図３】 本実施形態の正面図を示す。FIG. 3 shows a front view of the embodiment.

【図４】 従来装置１の正面図を示す。FIG. 4 shows a front view of the conventional device 1.

【図５】 従来装置１のスイングイン状態の平面図を示
す。FIG. 5 shows a plan view of the conventional device 1 in a swing-in state.

【図６】 従来装置１のスイングアウトした状態の平面
図を示す。FIG. 6 shows a plan view of the conventional device 1 in a state of swinging out.

【図７】 従来装置２の正面図を示す。7 shows a front view of the conventional device 2. FIG.

【図８】 従来装置２の平面図を示す。FIG. 8 shows a plan view of a conventional device 2.

【図９】 従来装置２の回動支持構造を示す。FIG. 9 shows a rotation support structure of the conventional device 2.

【図１０】 従来装置１の正面図を示す。FIG. 10 shows a front view of a conventional device 1.

【図１１】 従来装置３のスイングイン状態の平面図を
示す。FIG. 11 shows a plan view of the conventional device 3 in a swing-in state.

【図１２】 従来装置３のスイングアウトした状態の平
面図を示す。FIG. 12 shows a plan view of the conventional device 3 in a state of swinging out.

【符号の説明】[Explanation of symbols]

１１ エンジンラジエータ １３ オイルクーラ ２１ 回動支持部品 ２２ａ、２２ｂ オイル入出管 ２４ 接続部品 ２４ａ 接続部材 ２５ オイル供給管 ２６ 接続部品 ２６ａ 接続部材 ２７ａ、２７ｂ ゴムホース（弾性ホース） ３０ 境界面 DESCRIPTION OF SYMBOLS 11 Engine radiator 13 Oil cooler 21 Rotation support part 22a, 22b Oil inlet / outlet pipe 24 Connection part 24a Connection member 25 Oil supply pipe 26 Connection part 26a Connection member 27a, 27b Rubber hose (elastic hose) 30 Boundary surface

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｆ０１Ｍ 5/00 Ｆ０１Ｍ 5/00 Ｇ 11/02 11/02 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) F01M 5/00 F01M 5/00 G 11/02 11/02

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 油圧ショベル等の建設機械のオイルクー
ラ配管構造において、ラジエータ等の前面にオイルクー
ラをスイングアウト可能に設け、該オイルクーラの供給
側及び排出側の配管の一部を弾性ホースで構成し、オイ
ルクーラのスイングイン状態で該弾性ホースの曲がりが
最大で、該オイルクーラをスイングアウトするときに該
弾性ホースの曲がりが減少するように接続配管したこと
を特徴とする建設機械のオイルクーラ配管構造。In an oil cooler piping structure for construction equipment such as a hydraulic excavator, an oil cooler is swingably provided on a front surface of a radiator or the like, and a part of piping on a supply side and a discharge side of the oil cooler is elastically hosed. An oil for a construction machine, wherein the elastic hose has a maximum bending in the swing-in state of the oil cooler, and is connected so as to reduce the bending of the elastic hose when the oil cooler swings out. Cooler piping structure. 【請求項２】 前記弾性ホースは、該クーラをスイング
アウトしたときに該オイルクーラの側面方向に対して該
弾性ホースの最大変位が所定範囲を越えないように該ホ
ースの接続部を斜めに設けたことを特徴とする請求項１
に記載の建設機械のオイルクーラ配管構造。2. The elastic hose according to claim 1, wherein the connecting portion of the elastic hose is provided obliquely so that a maximum displacement of the elastic hose does not exceed a predetermined range with respect to a side surface direction of the oil cooler when the cooler swings out. 2. The method according to claim 1, wherein
2. An oil cooler piping structure for a construction machine according to item 1. 【請求項３】 前記弾性ホースは、前記オイルクーラを
スイングアウトしたときに該弾性ホースの捻りが所定の
範囲に収まるように該弾性ホースの両端の接続部の位置
の高低差を小さくし、かつ、該弾性ホースの長さを十分
な長さとしたことを特徴とする請求項１又は請求項２の
何れか１に記載の建設機械のオイルクーラ配管構造。3. The elastic hose according to claim 1, wherein the elastic hose has a small difference in height between connecting portions at both ends of the elastic hose so that the torsion of the elastic hose falls within a predetermined range when the oil cooler swings out. 3. The oil cooler piping structure for a construction machine according to claim 1, wherein said elastic hose has a sufficient length.
JP17716199A 1999-06-23 1999-06-23 Oil cooler piping structure for construction machinery Expired - Fee Related JP3501979B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17716199A JP3501979B2 (en) 1999-06-23 1999-06-23 Oil cooler piping structure for construction machinery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17716199A JP3501979B2 (en) 1999-06-23 1999-06-23 Oil cooler piping structure for construction machinery

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2003347006A Division JP4134342B2 (en) 2003-10-06 2003-10-06 Oil cooler piping structure for construction machinery

Publications (2)

Publication Number Publication Date
JP2001012244A true JP2001012244A (en) 2001-01-16
JP3501979B2 JP3501979B2 (en) 2004-03-02

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ID=16026257

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Country Link
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002264665A (en) * 2001-03-06 2002-09-18 Komatsu Ltd Tilt structure of cooling unit
JP2007077609A (en) * 2005-09-12 2007-03-29 Shin Caterpillar Mitsubishi Ltd Cooling device and working machine
JP2007112285A (en) * 2005-10-20 2007-05-10 Yanmar Co Ltd Working vehicle
US7370690B2 (en) * 2004-06-25 2008-05-13 Cnh America Llc Apparatus for tilting and securing a heat exchanger
US20080135209A1 (en) * 2006-12-11 2008-06-12 Deere & Company Stacked Heat Exchanger System with Swing-Out Heat Exchangers
US7455100B2 (en) * 2005-06-28 2008-11-25 Caterpillar Inc. Cooling system having a pivotal heat exchanger
US20090078394A1 (en) * 2007-04-20 2009-03-26 Leslie Roy Weatherup Pivotal heat exchanger with remote opener
WO2012086519A1 (en) * 2010-12-24 2012-06-28 株式会社小松製作所 Construction vehicle
US8672071B2 (en) 2011-09-21 2014-03-18 Deere & Company Fluid cooler arrangement for a cooling package in a work vehicle
US8960342B2 (en) 2011-02-22 2015-02-24 Deere & Company Swing-out coolers and cooling fans
JP2018159270A (en) * 2017-03-22 2018-10-11 三菱ロジスネクスト株式会社 Oil cooling device of cargo handling vehicle
JP2018193025A (en) * 2017-05-22 2018-12-06 コベルコ建機株式会社 Cooling device for construction machine

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CN103741748A (en) * 2013-12-26 2014-04-23 柳州正菱集团有限公司 Fixing device for radiator of excavator

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002264665A (en) * 2001-03-06 2002-09-18 Komatsu Ltd Tilt structure of cooling unit
JP4497343B2 (en) * 2001-03-06 2010-07-07 株式会社小松製作所 Cooling unit tilt structure
US7370690B2 (en) * 2004-06-25 2008-05-13 Cnh America Llc Apparatus for tilting and securing a heat exchanger
US7950443B2 (en) 2004-06-25 2011-05-31 Cnh America Llc Apparatus for tilting and securing a heat exchanger
US7455100B2 (en) * 2005-06-28 2008-11-25 Caterpillar Inc. Cooling system having a pivotal heat exchanger
JP4528230B2 (en) * 2005-09-12 2010-08-18 キャタピラージャパン株式会社 Refrigerator and work machine
JP2007077609A (en) * 2005-09-12 2007-03-29 Shin Caterpillar Mitsubishi Ltd Cooling device and working machine
JP2007112285A (en) * 2005-10-20 2007-05-10 Yanmar Co Ltd Working vehicle
US20080135209A1 (en) * 2006-12-11 2008-06-12 Deere & Company Stacked Heat Exchanger System with Swing-Out Heat Exchangers
US9441892B2 (en) * 2006-12-11 2016-09-13 Deere & Company Stacked heat exchanger system with swing-out heat exchangers
US20090078394A1 (en) * 2007-04-20 2009-03-26 Leslie Roy Weatherup Pivotal heat exchanger with remote opener
WO2012086519A1 (en) * 2010-12-24 2012-06-28 株式会社小松製作所 Construction vehicle
JP5047405B2 (en) * 2010-12-24 2012-10-10 株式会社小松製作所 Construction vehicle
US8544584B2 (en) 2010-12-24 2013-10-01 Komatsu Ltd. Construction vehicle
US8960342B2 (en) 2011-02-22 2015-02-24 Deere & Company Swing-out coolers and cooling fans
US8672071B2 (en) 2011-09-21 2014-03-18 Deere & Company Fluid cooler arrangement for a cooling package in a work vehicle
JP2018159270A (en) * 2017-03-22 2018-10-11 三菱ロジスネクスト株式会社 Oil cooling device of cargo handling vehicle
JP2018193025A (en) * 2017-05-22 2018-12-06 コベルコ建機株式会社 Cooling device for construction machine

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