JP2006168941A - Crawler crane - Google Patents

Crawler crane Download PDF

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JP2006168941A
JP2006168941A JP2004365668A JP2004365668A JP2006168941A JP 2006168941 A JP2006168941 A JP 2006168941A JP 2004365668 A JP2004365668 A JP 2004365668A JP 2004365668 A JP2004365668 A JP 2004365668A JP 2006168941 A JP2006168941 A JP 2006168941A
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cab
deck
cab deck
hollow member
swing body
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JP4182947B2 (en
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Kunio Wakamatsu
邦夫 若松
Yutaka Kobayashi
豊 小林
Tomohiko Murata
朝彦 村田
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Kobelco Cranes Co Ltd
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Kobelco Cranes Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a crawler crane capable of facilitating change-over of a cab deck mounting structure between a fixed type and a turnable type, and capable of effectively reducing labor, time and the loss of components accompanied by variation of an exportation destination. <P>SOLUTION: The crawler crane is constituted by protruding a cab deck 3 on a front part of an upper turning body 1 to the side part than the other parts of the upper turning body, and mounting a cab on the cab deck. A hollow member 10 through which a hose is inserted is provided between the cab deck and the upper turning body. The hollow member is detachably connected to the cab deck and the upper turning body so that the hollow member can be changed-over between the one having a swinging function for turnably supporting the cab deck around a perpendicular axis and the one not having the function. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、建設機械であるクローラクレーンに関し、特に、上部旋回体の前部にキャブを設置するために取り付けられるキャブデッキの取付構造に係わる。   The present invention relates to a crawler crane as a construction machine, and more particularly to a cab deck mounting structure that is mounted to install a cab at the front of an upper swing body.

一般に、クローラクレーンにおいては、運転室を構成するキャブ内からの作業時の視界を広くするために、上部旋回体の前部にキャブデッキが上部旋回体の他の部位よりも側方に突出して取り付けられ、このキャブデッキ上にキャブが設置されている。   In general, in a crawler crane, a cab deck protrudes laterally from other parts of the upper swing body at the front of the upper swing body in order to widen the field of view when working from within the cab constituting the cab. A cab is installed on this cab deck.

また、クローラクレーンは、一般公道を自走することができないためにトレーラで輸送される。この輸送時にはキャブデッキないしキャブを含む全幅がトレーラ幅に収まるように規制されており、その規制値は世界の各国で相違し、例えば我が国では３．２ｍ、北米では３．６ｍ、欧州では３．５ｍである。このため、全幅が３．５〜３．６ｍクラスのクローラクレーンの場合、キャブデッキの取付構造として、固定式のものと回動式のものとが併用され、北米向けには固定式のものが製造され輸出される一方、欧州向けには回動式のものが製造され輸出されている。尚、キャブデッキの取付構造が異なる同一クラスのクローラクレーン同士は俗に兄弟機種と称される。   In addition, the crawler crane is transported by trailer because it cannot self-propel on public roads. During this transportation, the entire width including the cab deck or cab is regulated to be within the trailer width, and the regulation values are different in each country in the world, for example, 3.2 m in Japan, 3.6 m in North America, and 3. m in Europe. 5 m. For this reason, in the case of a crawler crane with a total width of 3.5 to 3.6 m, a fixed type and a rotary type are used together as a cab deck mounting structure, and a fixed type is used for North America. While manufactured and exported, rotating products are manufactured and exported to Europe. The same class of crawler cranes with different cab deck mounting structures are commonly referred to as sibling models.

ここで、固定式のキャブデッキ取付構造としては、例えば図１４に示すように、矩形枠状のキャブデッキａの内側の側枠部ａ１を複数個所、例えば符号ｃで示す３個所でそれぞれ上部旋回体ｂの対応する部分にボルト止めにより固定してなるものが知られている。この取付構造において、上部旋回体ｂ側からキャブデッキａ側に油圧ホースや電気ハーネスなどのホース類を配置する場合、上部旋回体ｂのサイドデッキ部ｂ１前端からキャブデッキａの後枠部ａ２に設けた開口部（図示せず）を通して配置するのが一般的である。   Here, as a fixed cab deck mounting structure, as shown in FIG. 14, for example, as shown in FIG. 14, the inner side frame portion a1 of the rectangular frame-shaped cab deck a is pivoted upward at a plurality of locations, for example, at three locations indicated by reference symbol c. What is fixed to the corresponding part of the body b by bolting is known. In this mounting structure, when hoses such as a hydraulic hose and an electric harness are arranged from the upper swing body b side to the cab deck a side, the front deck side b2 of the upper swing body b is connected to the rear frame part a2 of the cab deck a. Generally, it is arranged through the provided opening (not shown).

一方、回動式のキャブデッキ取付構造としては、例えば特許文献１に開示され、また図１５にも示すように、キャブデッキａの内側の側枠部ａ１と上部旋回体ｂの前端部との間に中空状のスイングアームｄを配置し、このスイングアームｄの一端をキャブデッキａの内側側枠部ａ１にボルト止めにより接合する一方、スイングアームｄの他端を、上部旋回体ｂの前端部に各々固着した上下２つのブラケットｅ，ｆにベアリング（図示せず）などを介して垂直軸回りに回動可能に連結することにより、キャブデッキａを上部旋回体ｂの前部側方に突出する作業位置と上部旋回体ｂの前方で全幅内に収まる輸送位置との間で回動し得るようにしたものが知られている。この取付構造の場合、ホース類をスイングアームｄの内部に通して配置することができ、それにより、ホース類の外部異物との接触などによる損傷やキャブデッキａ回動時の摩耗を極力防止できることが特許文献１にも開示されている。
特開２０００−２８１２７７号公報 On the other hand, as a pivotable cab deck mounting structure, for example, as disclosed in Patent Document 1 and as shown in FIG. 15, a side frame portion a1 inside the cab deck a and a front end portion of the upper swing body b are provided. A hollow swing arm d is arranged between them, and one end of the swing arm d is joined to the inner side frame portion a1 of the cab deck a by bolting, while the other end of the swing arm d is connected to the front end of the upper swing body b. By connecting the upper and lower brackets e and f, which are respectively fixed to the upper and lower brackets, via a bearing (not shown) and the like so as to be rotatable about a vertical axis, the cab deck a is moved to the front side of the upper swing body b. It is known that it can be rotated between a projecting work position and a transport position within the full width in front of the upper swing body b. In the case of this mounting structure, the hoses can be arranged through the inside of the swing arm d, thereby preventing damages due to contact of the hoses with an external foreign object and wear during rotation of the cab deck a as much as possible. Is also disclosed in Patent Document 1.
JP 2000-281277 A

ところで、クローラクレーンの製造は、受注方式ではなく見込み方式によるものであるため、上述の如くキャブデッキの取付構造として固定式のものと回動式のものとを併用するクラスのクローラクレーンの場合、輸出先毎の実際の受注数と見込み数とが異なると北米向けの固定式のキャブデッキ取付構造のものから欧州向けに回動式のキャブデッキ取付構造のものに変更したり、逆に回動式のキャブデッキ取付構造のものを固定式のキャブデッキ取付構造のものに変更したりする必要がある。   By the way, since the production of the crawler crane is not based on the order receiving method but based on the prospective method, as described above, in the case of a class of crawler crane that uses both a fixed type and a rotary type as the cab deck mounting structure, If the actual number of orders for each export destination differs from the expected number, it is possible to change from a fixed cab deck mounting structure for North America to a rotating cab deck mounting structure for Europe, or reverse rotation It is necessary to change the type of the cab deck mounting structure to the type of the fixed cab deck mounting structure.

しかるに、上記従来のキャブデッキ取付構造では、固定式のものと回動式ものとでは取付構造自体が異なるだけでなく、ホース類の配置及びそれに伴うキャブデッキａなどの構造も異なるため、輸出先の変更に伴うキャブデッキ取付構造の固定式と回動式との間の変更が容易ではなく、労力、時間及び部品のロスが大きくなるという問題があった。   However, in the above conventional cab deck mounting structure, not only the mounting structure itself is different between the fixed type and the rotating type, but also the arrangement of the hoses and the accompanying cab deck a and the like are different. There is a problem that it is not easy to change between the fixed type and the rotary type of the cab deck mounting structure in accordance with the change of the cab deck, and labor, time, and parts loss are increased.

そこで、このような問題を解決するために、兄弟機種のクローラクレーンを、回動式のキャブデッキ取付構造に統一することが考えられるが、北米では重量規制が厳しいことから、固定式のキャブデッキ取付構造で足りるのに重量の大きい回動式のキャブデッキ取付構造を採用することはできないのが実情である。   In order to solve these problems, it may be possible to unify the sibling crawler crane with a rotating cab deck mounting structure. However, because weight restrictions are strict in North America, a fixed cab deck is recommended. Actually, it is not possible to adopt a rotating cab deck mounting structure that is heavy in weight even though the mounting structure is sufficient.

本発明はかかる諸点に鑑みてなされたものであり、その課題とするところは、キャブデッキ取付構造の固定式と回動式との間の変更を容易に行い得るようにし、もって輸出先の変更に伴う労力、時間及び部品のロスを可及的にかつ実施上有効に少なくし得るクローラクレーンを提供せんとするものである。   The present invention has been made in view of such various points, and the problem is that the cab deck mounting structure can be easily changed between the fixed type and the rotary type, and the export destination can be changed. It is an object of the present invention to provide a crawler crane capable of effectively and practically reducing the loss of labor, time and parts involved.

上記の課題を解決するため、請求項１に係る発明は、上部旋回体の前部にキャブデッキが上部旋回体の他の部位よりも側方に突出して取り付けられ、このキャブデッキ上にキャブが設置されてなるクローラクレーンにおいて、上記キャブデッキと上部旋回体との間に、内部にホース類を通すための中空部材を設ける。そして、この中空部材を、キャブデッキを垂直軸回りに回動可能に支持するためのスイング機能を有するものと、この機能を有しないものとに変更可能になるように、キャブデッキ及び上部旋回体に対しそれぞれ取り外し可能に連結する構成にする。   In order to solve the above-mentioned problem, in the invention according to claim 1, a cab deck is attached to the front portion of the upper swing body so as to protrude laterally from other portions of the upper swing body, and the cab is mounted on the cab deck. In the installed crawler crane, a hollow member for passing hoses is provided between the cab deck and the upper swing body. Then, the cab deck and the upper swing body can be changed so that the hollow member can be changed into a member having a swing function for supporting the cab deck so as to be rotatable about a vertical axis and a member not having this function. Are configured to be detachably connected to each other.

この構成では、中空部材が従来のスイングアームの如きスイング機能を有するものの場合、あるいはスイング機能を有しないものの場合のいずれでも同じくこの中空部材がキャブデッキと上部旋回体との間に設けられているとともに、キャブデッキ及び上部旋回体に対しそれぞれ取り外し可能に連結されているため、輸出先の変更に伴う中空部材の変更を容易に行うことができる。しかも、中空部材を変更してもその内部を通してホース類を上部旋回体側からキャブデッキ側に配置する構成は変わらないので、それに伴うキャブデッキ及び上部旋回体の構造などをも変更する必要がなく、この点からも輸出先の変更に伴う中空部材の変更を容易に行うことができる。また、中空部材がスイング機能を有しないものの場合、中空部材は内部にホース類を通すためのダクトとしての機能を有すれば足りるため、その重量が大きくなることはなく、重量規制の点からも問題なく実施することができる。   In this configuration, the hollow member is similarly provided between the cab deck and the upper swing body regardless of whether the hollow member has a swing function like a conventional swing arm or does not have a swing function. In addition, since the cab deck and the upper swing body are detachably connected to each other, the hollow member can be easily changed in accordance with the change of the export destination. Moreover, even if the hollow member is changed, the configuration in which the hoses are arranged from the upper swing body side to the cab deck side through the inside does not change, so it is not necessary to change the structure of the cab deck and the upper swing body associated therewith, From this point, the hollow member can be easily changed in accordance with the change of the export destination. In addition, in the case where the hollow member does not have a swing function, it is sufficient that the hollow member has a function as a duct for passing hoses inside, so that the weight does not increase, and also from the point of weight regulation Can be implemented without problems.

請求項２に係る発明は、請求項１記載のクローラクレーンにおいて、上記中空部材がスイング機能を有するものの場合の一つの具体的な形態を提供するものである。すなわち、この中空部材を、一端にキャブデッキにボルト止めにより取り外し可能に接合される接合プレートを有するキャブ側部材と、一端に上部旋回体にボルト止めにより取り外し可能に接合される接合プレートを有する旋回体側部材とにより構成するとともに、キャブ側部材と旋回体側部材の他端同士を、ベアリングを介して垂直軸回りに回動可能に連結する構成にする。この構成では、中空部材の２つの部材のうち、キャブ側部材の接合プレートがキャブデッキに、旋回体側部材の接合プレートが上部旋回体にそれぞれボルト止めにより取り外し可能に接合されているため、中空部材とキャブデッキ及び上部旋回体との連結を確実に行うことができるとともに、その取り付け及び取り外し作業を容易に行うことができる。また、キャブ側部材と旋回体側部材の他端同士は、ベアリングを介して垂直軸回りに回動可能に連結されているため、この連結部分が開放状態に保たれ、中空部材のダクトとしての機能が損なわれることはない。   The invention according to claim 2 provides a specific form in the case of the crawler crane according to claim 1, wherein the hollow member has a swing function. In other words, this hollow member has a cab side member having a joining plate removably joined to the cab deck by bolting at one end, and a swivel having a joining plate removably joined to the upper revolving body by bolting at one end. In addition to the body side member, the other ends of the cab side member and the revolving body side member are connected to each other so as to be rotatable about a vertical axis via a bearing. In this configuration, of the two members of the hollow member, the joining plate of the cab side member is detachably joined to the cab deck and the joining plate of the revolving body side member is removably joined to the upper revolving body by bolting. Can be reliably connected to the cab deck and the upper swing body, and can be easily attached and detached. In addition, since the other ends of the cab side member and the revolving body side member are connected to each other so as to be rotatable around a vertical axis via a bearing, the connecting portion is kept open, and functions as a duct of the hollow member. Will not be damaged.

請求項３に係る発明は、請求項２記載のクローラクレーンにおいて、中空部材のより好ましい具体的な形態を提供するものである。すなわち、上記旋回体側部材は、その接合プレートから互いに上下方向に所定距離隔てて水平方向に延出する上下２つの水平プレートを有してなり、この両水平プレートの間に上記キャブ側部材の他端部を配置し、キャブ側部材の下部を下側の水平プレート上にベアリングを介して連結するとともに、キャブ側部材の上部を上側の水平プレートにベアリングと同一軸上に位置する支持ピン回りに回動可能に連結する構成にする。この構成では、クレーン作業時及びトレーラ輸送時の振動によるベアリングの負荷を軽減しながら、中空部材のダクトとしての機能を実施上有効に確保することができる。   The invention according to claim 3 provides a more preferable specific form of the hollow member in the crawler crane according to claim 2. That is, the revolving member side member has two upper and lower horizontal plates that extend horizontally from the joint plate at a predetermined distance from each other in the vertical direction, and the cab side member is disposed between the horizontal plates. Place the end, connect the lower part of the cab side member to the lower horizontal plate via a bearing, and connect the upper part of the cab side member to the upper horizontal plate around the support pin located on the same axis as the bearing It is configured to be pivotally connected. With this configuration, the function of the hollow member as a duct can be effectively ensured while reducing the load on the bearing due to vibration during crane operation and trailer transportation.

請求項４に係る発明は、請求項２又は３記載のクローラクレーンにおいて、上記キャブデッキが上部旋回体の前部側方に突出する作業位置に位置するときこのキャブデッキを上部旋回体に固定する固定部材とは別に、キャブデッキの回動を規制するロック部材を設け、このロック部材の一端を上部旋回体側に回動可能に支持させ、他端を、キャブデッキ側に設けた係合部に脱着可能に係合する構成にする。この構成では、中空部材のデッキ側部材と旋回体側部材とがベアリングを介して垂直軸回りに回動可能に連結されていることから、キャブデッキが上部旋回体の前部側方に突出する作業位置に位置するときキャブデッキを上部旋回体に固定する固定部材を外すとキャブデッキが作業位置から地面の傾斜などに起因して上部旋回体前方の輸送位置に回動する虞があるが、この回動はロック部材により確実に阻止される。また、このロック部材は、トレーラ搬送後にキャブデッキ側の係合部に係合するのを忘れた場合上部旋回体から垂れ下り、クレーン作業時に上部旋回体が旋回した際他の部材に当たって金属音を発するので、ロック部材の係合忘れを防止することができる。   The invention according to claim 4 is the crawler crane according to claim 2 or 3, wherein the cab deck is fixed to the upper swing body when the cab deck is located at a work position protruding to the front side of the upper swing body. In addition to the fixed member, a lock member that restricts the rotation of the cab deck is provided. One end of the lock member is rotatably supported on the upper swing body side, and the other end is engaged with an engagement portion provided on the cab deck side. It is configured to be detachably engaged. In this configuration, the deck side member of the hollow member and the revolving body side member are connected via a bearing so as to be rotatable about the vertical axis, so that the cab deck projects to the front side of the upper revolving body. If the fixing member that fixes the cab deck to the upper swing body is removed when it is in the position, the cab deck may rotate from the working position to the transport position in front of the upper swing body due to the inclination of the ground, etc. The rotation is reliably prevented by the lock member. In addition, if the lock member forgets to engage with the engaging part on the cab deck side after transporting the trailer, the lock member will hang down from the upper swing body and hit the other members when the upper swing body turns during crane work and make a metal sound. Therefore, forgetting to engage the lock member can be prevented.

請求項５に係る発明は、請求項１ないし請求項４のいずれか一つに記載のクローラクレーンにおいて、上記中空部材がスイング機能を有しないものの場合の一つの具体的な形態を提供するものである。すなわち、この中空部材を、中央部で折れ曲がった形状に形成し、その両端にそれぞれキャブデッキ及び上部旋回体にボルト止めにより取り外し可能に接合される接合プレートを有する構成にする。この構成では、中空部材の両端の接合プレートがそれぞれキャブデッキ及び上部旋回体にボルト止めにより取り外し可能に接合されているため、中空部材とキャブデッキ及び上部旋回体との結合を確実に行うことができるとともに、その取り付け及び取り外し作業を容易に行うことができる。   The invention according to claim 5 provides a specific form of the crawler crane according to any one of claims 1 to 4, wherein the hollow member does not have a swing function. is there. That is, this hollow member is formed in a bent shape at the center, and has a joining plate that is removably joined to the cab deck and the upper swing body by bolting at both ends thereof. In this configuration, since the joining plates at both ends of the hollow member are removably joined to the cab deck and the upper swing body by bolting, respectively, the hollow member, the cab deck and the upper swing body can be reliably coupled. In addition, it can be easily attached and detached.

請求項６に係る発明は、請求項１ないし請求項５のいずれか一つに記載のクローラクレーンにおいて、上記中空部材がスイング機能を有しないものの場合、キャブデッキを、上部旋回体に固定したプレートのねじ孔にボルトをキャブデッキ側からねじ込んで上部旋回体に固定する一方、上記プレートを、中空部材がスイング機能を有するものの場合にも上部旋回体に固定する構成にする。この構成では、中空部材がスイング機能を有するものの場合とスイング機能を有しないものの場合のいずれにもキャブデッキを上部旋回体に固定するためのねじ孔を有するプレートが上部旋回体に固定されているため、輸出先の変更に伴うキャブデッキ取付構造の固定式と回動式との間の変更をより容易に行うことができる。しかも、プレート自体はそれ程重量物ではないので、固定式のキャブデッキ取付構造の場合に重量規制の問題が生じることはない。   The invention according to claim 6 is the crawler crane according to any one of claims 1 to 5, wherein the cab deck is fixed to the upper swing body when the hollow member does not have a swing function. A bolt is screwed into the screw hole from the cab deck side and fixed to the upper swing body, while the plate is fixed to the upper swing body even when the hollow member has a swing function. In this configuration, a plate having a screw hole for fixing the cab deck to the upper swing body is fixed to the upper swing body in both cases where the hollow member has a swing function and does not have a swing function. Therefore, it is possible to more easily change the cab deck mounting structure between the fixed type and the rotary type accompanying the change of the export destination. In addition, since the plate itself is not so heavy, there is no problem of weight regulation in the case of a fixed cab deck mounting structure.

以上のように、本発明のクローラクレーンによれば、中空部材がスイング機能を有するものの場合、あるいはスイング機能を有しないものの場合のいずれでも中空部材がキャブデッキ及び上部旋回体に対しそれぞれ取り外し可能に連結されているため、輸出先の変更に伴う中空部材の変更を容易に行うことができる上、中空部材を変更してもその内部を通してホース類を上部旋回体側からキャブデッキ側に配置する構成は変わらないので、それに伴うキャブデッキ及び上部旋回体の構造などをも変更する必要がなく、この点からも輸出先の変更に伴う中空部材の変更つまりキャブデッキ取付構造の固定式と回動式との間の変更を容易に行うことができる。また、中空部材がスイング機能を有しないものの場合、中空部材は内部にホース類を通すためのダクトとしての機能を有すれば足りるため、その重量が大きくなることはなく、重量規制の点からも問題なく実施化を図ることができる。   As described above, according to the crawler crane of the present invention, the hollow member can be detached from the cab deck and the upper swing body, regardless of whether the hollow member has a swing function or does not have a swing function. Since it is connected, it is possible to easily change the hollow member according to the change of the export destination, and even if the hollow member is changed, the configuration in which the hoses are arranged from the upper swing body side to the cab deck side through the inside Since there is no change, it is not necessary to change the structure of the cab deck and upper revolving body associated with it. From this point also, the change of the hollow member accompanying the change of the export destination, that is, the fixed type and the rotating type of the cab deck mounting structure Can be easily changed. In addition, in the case where the hollow member does not have a swing function, it is sufficient that the hollow member has a function as a duct for passing hoses inside, so that the weight does not increase, and also from the point of weight regulation Implementation can be achieved without problems.

特に、請求項２に係る発明では、中空部材がスイング機能を有するものの場合、この中空部材とキャブデッキ及び上部旋回体との連結を確実に行うことができるとともに、その取り付け及び取り外し作業を容易に行うことができる。また、中空部材のキャブ側部材と旋回体側部材の他端同士は、ベアリングを介して垂直軸回りに回動可能に連結されているため、この連結部分が開放状態に保たれ、中空部材のダクトとしての機能が損なわれることはなく、実施化を有効に図ることができる。   In particular, in the invention according to claim 2, when the hollow member has a swing function, the hollow member, the cab deck, and the upper swing body can be reliably connected, and the attachment and removal work can be easily performed. It can be carried out. In addition, since the other end of the cab side member and the revolving body side member of the hollow member are connected to each other so as to be rotatable around a vertical axis via a bearing, the connecting portion is maintained in an open state. As a result, the implementation can be effectively carried out.

請求項３に係る発明では、クレーン作業時及びトレーラ輸送時の振動によるベアリングの負荷を軽減しながら、中空部材のダクトとしての機能を実施上有効に確保することができるという効果をも併有する。   The invention according to claim 3 also has an effect that the function of the hollow member as a duct can be effectively ensured while reducing the load on the bearing due to vibration during crane operation and trailer transportation.

請求項４に係る発明では、キャブデッキが上部旋回体の前部側方に突出する作業位置に位置するときキャブデッキを上部旋回体に固定する固定部材を外してもキャブデッキの輸送位置への回動をロック部材により確実に阻止することができる。また、ロック部材は、トレーラ搬送後にキャブデッキの係合部に係合するのを忘れた場合上部旋回体から垂れ下り、クレーン作業時に上部旋回体が旋回した際他の部材に当たって金属音を発するので、ロック部材の係合忘れを防止できるという効果をも奏する。   In the invention which concerns on Claim 4, even if it removes the fixing member which fixes a cab deck to an upper revolving body when a cab deck is located in the operation position which protrudes to the front part side of an upper revolving body, it will return to a transport position of a cab deck The rotation can be reliably prevented by the lock member. In addition, if the lock member forgets to engage with the engaging part of the cab deck after transporting the trailer, the lock member hangs down from the upper swing body, and when the upper swing body turns during crane work, it hits other members and emits a metal sound. There is also an effect that forgetting to engage the lock member can be prevented.

請求項５に係る発明では、中空部材がスイング機能を有しないものの場合、中空部材とキャブデッキ及び上部旋回体との結合を確実に行うことができるとともに、その取り付け及び取り外し作業を容易に行うことができ、実施化を図る上で有効である。   In the invention according to claim 5, in the case where the hollow member does not have a swing function, the hollow member, the cab deck, and the upper swing body can be reliably coupled, and the attachment and removal operations can be easily performed. This is effective for implementation.

さらに、請求項６に係る発明では、中空部材がスイング機能を有するものの場合とスイング機能を有しないものの場合のいずれにもキャブデッキを上部旋回体に固定するためのねじ孔を有するプレートが上部旋回体に固定されているため、輸出先の変更に伴うキャブデッキ取付構造の固定式と回動式との間の変更をより容易に行うことができる。しかも、プレート自体はそれ程重量物ではないので、固定式のキャブデッキ取付構造の場合に重量規制の問題が生じることはなく、実施化を有効に図ることができる。   Further, in the invention according to claim 6, the plate having the screw hole for fixing the cab deck to the upper swing body has the upper swing in both the case where the hollow member has a swing function and the hollow member does not have the swing function. Since it is fixed to the body, the change between the fixed type and the rotary type of the cab deck mounting structure accompanying the change of the export destination can be performed more easily. In addition, since the plate itself is not so heavy, there is no problem of weight regulation in the case of a fixed cab deck mounting structure, and implementation can be effectively achieved.

以下、本発明を実施するための最良の形態である実施形態を図面に基づいて説明する。   DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments that are the best mode for carrying out the present invention will be described below with reference to the drawings.

図１ないし図３は本発明の一実施形態に係るクローラクレーンの上部旋回体の前部付近を示し、１はクローラクレーンの上部旋回体であって、この上部旋回体１は、図示していないが自走可能なクローラ式の下部走行体上に旋回可能に搭載されており、上部旋回体１の前部には、作業アタッチメントとしてのラチスブーム（図示せず）の基端を支持する左右一対のブーム支持部２，２が上方に突出して形成されている。   FIGS. 1 to 3 show the vicinity of the front part of an upper swing body of a crawler crane according to an embodiment of the present invention. Reference numeral 1 denotes an upper swing body of a crawler crane, and the upper swing body 1 is not shown. Is mounted on a crawler-type lower traveling body capable of self-running, and a pair of left and right supporting the base end of a lattice boom (not shown) as a work attachment is mounted on the front portion of the upper revolving body 1. Boom support portions 2 and 2 are formed to protrude upward.

また、上記上部旋回体１の前部には、右側のブーム支持部２の右隣にキャブデッキ３が上部旋回体１の他の部位、特にキャブデッキ３後方のサイドデッキ部１ａよりも側方に突出して取り付けられている。このキャブデッキ３は、４辺がそれぞれ平板からなる矩形枠状のものであり、キャブデッキ３の厚み寸法（つまり高さ寸法）は、サイドデッキ部１ａのそれと略同一に設定されている。キャブデッキ３の上面側にはその四隅部などにキャブ（図示せず）を設置するための複数（図では６つ）のキャブ固定部４，４，…が設けられ、この各固定部４にてキャブを固定してキャブデッキ３上にキャブが設置される。上部旋回体１の前端部にはキャブデッキ３と反対側にプラットホーム５が取り付けられている一方、キャブデッキ３の前枠部３ａには補助プラットホーム６が取り付けられている。   Further, at the front of the upper swing body 1, the cab deck 3 is adjacent to the right side of the right boom support portion 2, and more laterally than other parts of the upper swing body 1, particularly the side deck portion 1 a behind the cab deck 3. Is attached to protrude. The cab deck 3 has a rectangular frame shape with four sides each formed of a flat plate, and the thickness dimension (that is, the height dimension) of the cab deck 3 is set to be substantially the same as that of the side deck portion 1a. On the upper surface side of the cab deck 3, a plurality of (six in the figure) cab fixing portions 4, 4,... For installing cabs (not shown) are provided at the four corners and the like. The cab is fixed on the cab deck 3 by fixing the cab. A platform 5 is attached to the front end portion of the upper swing body 1 on the side opposite to the cab deck 3, while an auxiliary platform 6 is attached to the front frame portion 3 a of the cab deck 3.

上記キャブデッキ３の内側の側枠部３ｃと上部旋回体１の前端部との間には内部にホース類（図示せず）を通すための中空部材１０が配置されている。この中空部材１０は、キャブデッキ３を垂直軸回りに回動可能に支持するためのスイング機能を有するものであるが、このスイング機能を有しないものと変更可能になるように両端がそれぞれキャブデッキ３及び上部旋回体１に対し取り外し可能に連結されている。   Between the side frame portion 3c inside the cab deck 3 and the front end portion of the upper swing body 1, a hollow member 10 for passing hoses (not shown) is disposed. The hollow member 10 has a swing function for supporting the cab deck 3 so as to be rotatable about a vertical axis. Both ends of the hollow member 10 are cab decks so that they can be changed from those having no swing function. 3 and the upper swing body 1 are detachably connected.

すなわち、上記中空部材１０は、図４ないし図６に拡大詳示するように、一端にキャブデッキ３の内側側枠部３ｃにボルト１１止めにより取り外し可能に接合される接合プレート１２を有するキャブ側部材１３と、一端に上部旋回体１の前端部にボルト１４止めにより取り外し可能に接合される接合フレーム１５を有する旋回体側部材１６とからなる。キャブ側部材１３は、内部にホース類が挿通可能になるように矩形のダクト状に形成されており、また内部にホース類を支持するための上下２つの支持棚１７，１７を有している。このキャブ側部材１３の接合プレート１２は、キャブデッキ３の厚み寸法と略同一長さを一辺の長さとする略正方形状のもので、この接合プレート１２の中央部にはキャブ側部材１３の内側に対応して上半部が矩形状でかつ下半部が半円形状の開口部１８が設けられており、この開口部１８及びキャブデッキ３の内側側枠部３ｃに設けた開口部１９（図２参照）を通して中空部材１０とキャブデッキ３との間に跨ってホース類が配置される。接合プレート１２の左右両側縁部は、それぞれキャブ側部材１３の外側でこれに近接する３個所（計６個所）でボルト１１止めによりキャブデッキ３の内側側枠部３ｃに取り外し可能に接合されている。   That is, the hollow member 10 has a joining plate 12 that is detachably joined to the inner side frame portion 3c of the cab deck 3 by bolts 11 at one end, as shown in enlarged detail in FIGS. The member 13 and the revolving body side member 16 having a joining frame 15 that is removably joined to the front end portion of the upper revolving body 1 by bolts 14 at one end. The cab-side member 13 is formed in a rectangular duct shape so that the hoses can be inserted therein, and has two upper and lower support shelves 17 and 17 for supporting the hoses inside. . The joining plate 12 of the cab side member 13 has a substantially square shape with one side having a length substantially the same as the thickness dimension of the cab deck 3, and the inside of the cab side member 13 is located at the center of the joining plate 12. Is provided with an opening 18 having a rectangular upper half and a semicircular lower half, and an opening 19 provided in the opening 18 and the inner frame 3c of the cab deck 3 ( 2), hoses and the like are disposed between the hollow member 10 and the cab deck 3. The left and right side edges of the joining plate 12 are detachably joined to the inner side frame 3c of the cab deck 3 by bolts 11 at three places (6 places in total) close to the outside of the cab side member 13, respectively. Yes.

上記旋回体側部材１６の接合プレート１５は、図３に示す如く上部旋回体１の前端部の厚み寸法と略同一長さを一辺の長さとする略正方形状のもので、この接合プレート１５の中央部には横方向に長い略楕円形状の開口部２０が設けられており、この開口部２０及び上部旋回体１の前端部に設けた開口部２１（図６参照）を通して中空部材１０と上部旋回体１との間に跨ってホース類が配置される。接合プレート１５の上縁部及び左右両側縁部は、いずれも複数個所でそれぞれ接合プレート１５の外面側から上部旋回体１の前端部に固着したプレート２２のねじ孔にボルト１４をねじ込んで固定することにより取り外し可能に接合されている。旋回体側部材１６は、接合プレート１５の外に、この接合プレート１５の開口部２０の上方部位から水平方向に延出する略三角形状の上側水平プレート２３と、接合プレート１５の下端部から上側水平プレート２３と上下方向に所定距離隔てて水平方向に延出する上側水平プレート２３よりも長大な下側水平プレート２４とを有してなる。そして、この旋回体側部材１６の上側水平プレート２３の先端部と下側水平プレート２４の先端部との間に上記キャブ側部材１３の他端部（先端部）が配置され、キャブ側部材１３の下面を構成する下面壁１３ａは下側水平プレート２４にベアリング２５及び円形プレート２６などを介して垂直軸回りに回動可能に連結されているとともに、キャブ側部材１３の上面を構成する上面壁１３ｂは上側水平プレート２３にベアリング２５と同一軸上に位置する支持ピン２７回りに回動可能に連結されている。尚、上記ベアリング２５と円形プレート２６とによりターンテーブルが構成されるので、ベアリングサイズによっては上記支持ピン２７が無くても円滑にスイングできるので、これを省略しても良い。   As shown in FIG. 3, the joining plate 15 of the revolving member side member 16 has a substantially square shape with one side having a length substantially the same as the thickness of the front end portion of the upper revolving member 1. A substantially elliptical opening 20 that is long in the lateral direction is provided in the section, and the hollow member 10 and the upper swivel are passed through the opening 20 and an opening 21 (see FIG. 6) provided at the front end of the upper swing body 1. A hose is disposed between the body 1 and the body 1. The upper edge portion and the left and right side edge portions of the joining plate 15 are fixed by screwing bolts 14 into the screw holes of the plate 22 fixed to the front end portion of the upper swing body 1 from the outer surface side of the joining plate 15 at a plurality of locations. So that it can be removed. The revolving body side member 16 has a substantially triangular upper horizontal plate 23 extending horizontally from an upper portion of the opening 20 of the joining plate 15 and an upper horizontal plate extending from the lower end of the joining plate 15 in addition to the joining plate 15. The plate 23 has a lower horizontal plate 24 that is longer than the upper horizontal plate 23 and extends in the horizontal direction at a predetermined distance in the vertical direction. The other end portion (tip portion) of the cab side member 13 is disposed between the tip end portion of the upper horizontal plate 23 and the tip end portion of the lower horizontal plate 24 of the revolving body side member 16. The lower surface wall 13a constituting the lower surface is connected to the lower horizontal plate 24 via a bearing 25, a circular plate 26 and the like so as to be rotatable about a vertical axis, and the upper surface wall 13b constituting the upper surface of the cab side member 13 Is connected to the upper horizontal plate 23 so as to be rotatable around a support pin 27 located on the same axis as the bearing 25. In addition, since the turntable is constituted by the bearing 25 and the circular plate 26, depending on the bearing size, the swing can be smoothly performed without the support pin 27, and this may be omitted.

上記ベアリング２５は、キャブ側部材１３の下面壁１３ａに固定した円形プレート２６の下面周縁部に取り付けられた外輪２５ａと、下側水平プレート２４の先端部上面に取り付けられた内輪２５ｂと、この両輪２５ａ，２５ｂ間に各々転動可能に介在された多数のボール２５ｃとからなる。しかして、中空部材１０は、このベアリング２５の中心軸である垂直軸回りにキャブ側部材１３がスイングアームとして回動するスイング機能を有しており、キャブデッキ３は、この中空部材１０のスイング機能に基づいて、図１に実線で示す如く上部旋回体１のサイドデッキ部１ａよりも側方に突出して位置する作業位置と、図１に仮想線で示す如く上部旋回体１の前方で上部旋回体１の全幅内に収まる輸送位置との間で回動するようになっている。   The bearing 25 includes an outer ring 25a attached to the lower peripheral edge of the circular plate 26 fixed to the lower wall 13a of the cab side member 13, an inner ring 25b attached to the upper surface of the tip of the lower horizontal plate 24, and both the wheels. It consists of a large number of balls 25c interposed between 25a and 25b so as to be capable of rolling. Thus, the hollow member 10 has a swing function in which the cab side member 13 rotates as a swing arm around a vertical axis that is the central axis of the bearing 25, and the cab deck 3 has a swing function of the hollow member 10. Based on the functions, the working position is located so as to protrude laterally from the side deck portion 1a of the upper swing body 1 as shown by the solid line in FIG. 1, and the upper position in front of the upper swing body 1 as shown by the phantom line in FIG. It is designed to rotate between a transport position that falls within the full width of the revolving unit 1.

上記キャブデッキ３が作業位置に位置するとき、このキャブデッキ３の後枠部３ｂは上部旋回体１のサイドデッキ部１ａに上下２つの固定部材３１，３１を介して固定されている。この各固定部材３１は、図７に拡大詳示するように、六角形の頭部３１ａと、この頭部３１ａに連続する６角柱状の軸部３１ｂと、この軸部３１ｂの先端に連続する軸部３１ｂよりも小径のねじ部３１ｃとからなり、ねじ部３１ｃを、サイドデッキ部１ａの前端部に取り付けたアングル材３２の貫通孔３３を通してキャブデッキ３の後枠部３ｂに設けたねじ孔３４にねじ込むことによりキャブデッキ３の後枠部３ｂを上部旋回体１のサイドデッキ部１ａにアングル材３２を介在して固定する。各固定部材３１の頭部３１ａにはレンチなど専用の回転操作具が無くても棒状部材で用いて固定部材３１のねじ込み操作を可能にするための３つの挿入孔３５，３５，３５が設けられている。   When the cab deck 3 is located at the working position, the rear frame portion 3b of the cab deck 3 is fixed to the side deck portion 1a of the upper swing body 1 via two upper and lower fixing members 31, 31. As shown in an enlarged detail in FIG. 7, each fixing member 31 is continuous to a hexagonal head portion 31a, a hexagonal columnar shaft portion 31b continuous to the head portion 31a, and a tip end of the shaft portion 31b. A screw hole provided in the rear frame portion 3b of the cab deck 3 through a through hole 33 of the angle member 32 attached to the front end portion of the side deck portion 1a. The rear frame portion 3b of the cab deck 3 is fixed to the side deck portion 1a of the upper swing body 1 with an angle member 32 interposed therebetween by being screwed into the 34. The head 31 a of each fixing member 31 is provided with three insertion holes 35, 35, 35 for allowing the fixing member 31 to be screwed in by using a rod-like member without a wrench or other dedicated rotating operation tool. ing.

また、キャブデッキ３が作業位置に位置するとき、上記固定部材３１とは別に、図１、図４及び図５に示すように、キャブデッキ３の回動を規制するロック部材３６が設けられている。このロック部材３６は、両端部が互いに同一方向に略直角に折れ曲がった棒状のもので、その一端部は上部旋回体１の前端部に取り付けた支持プレート３７に回動自在に支持され、他端部は、上記中空部材１０のキャブ側部材１３の下面壁１３ａに垂下して取り付けた係合部としての係合プレート３８の小孔に挿入した後抜け止めピン３９を差し込むことにより係合プレート３８に脱着可能に係合されている。   Further, when the cab deck 3 is located at the working position, a lock member 36 for restricting the rotation of the cab deck 3 is provided separately from the fixing member 31, as shown in FIGS. Yes. The lock member 36 has a rod-like shape whose both ends are bent at substantially right angles in the same direction. One end of the lock member 36 is rotatably supported by a support plate 37 attached to the front end of the upper swing body 1 and the other end. The engagement plate 38 is inserted by inserting a retaining pin 39 after being inserted into a small hole of the engagement plate 38 as an engagement portion hanging down and attached to the lower surface wall 13a of the cab side member 13 of the hollow member 10. And is detachably engaged.

尚、図１ないし図４中、４１はキャブデッキ３の前枠部３ａの内側側枠部３ｃ寄りに設けられた固定部であって、この固定部４１は、キャブデッキ３が輸送位置に位置するとき上部旋回体１のプラットホーム５の前端部に取り付けたブラケット４２との間で固定ピン４３を差し込むことなどでキャブデッキ３を輸送位置に固定するためのものである。４５はキャブデッキ３の内側側枠部３ｃの前端に取り付けられた第１のストップラバーであって、この第１のストップラバー４５は、キャブデッキ３が作業位置から輸送位置に回動する際にプラットホーム５の前端部に接触して回動を規制するものである。また、図１及び図７中、４６は上部旋回体１のサイドデッキ部１ａの前端に取り付けられた第２のストップラバーであって、この第２のストップラバー４６は、キャブデッキ３が輸送位置から作業位置に回動する際にキャブデッキ３の後枠部３ｂに接触して回動を規制するものである。   1 to 4, reference numeral 41 denotes a fixing portion provided near the inner side frame portion 3 c of the front frame portion 3 a of the cab deck 3, and this fixing portion 41 is located at the cab deck 3 in the transport position. In this case, the cab deck 3 is fixed to the transport position by inserting a fixing pin 43 between the bracket 42 attached to the front end portion of the platform 5 of the upper swing body 1. Reference numeral 45 denotes a first stop rubber attached to the front end of the inner side frame portion 3c of the cab deck 3. The first stop rubber 45 is used when the cab deck 3 is rotated from the working position to the transport position. It contacts the front end of the platform 5 to restrict rotation. In FIGS. 1 and 7, reference numeral 46 denotes a second stop rubber attached to the front end of the side deck portion 1a of the upper swing body 1. The second stop rubber 46 has a position where the cab deck 3 is transported. When rotating from the working position to the working position, the rotation is restricted by contacting the rear frame portion 3b of the cab deck 3.

以上の説明は、上記中空部材１０がスイング機能を有するものの場合（換言すればキャブデッキ３の取付構造が回動式のものの場合）について述べたが、中空部材がスイング機能を有しないものの場合（換言すればキャブデッキ３の取付構造が固定式のものの場合）については、図８ないし図１３を用いて以下に説明する。   In the above description, the hollow member 10 has a swing function (in other words, the mounting structure of the cab deck 3 is a rotary type), but the hollow member 10 has no swing function ( In other words, the case where the mounting structure of the cab deck 3 is a fixed type will be described below with reference to FIGS.

図８ないし図１０において、キャブデッキ３は、上部旋回体１の前部に上部旋回体１のサイドデッキ部１ａよりも側方に突出して取り付けられており、このキャブデッキ３の内側側枠部３ｃと上部旋回体１の前端部との間に中空部材５０が配置されている。この中空部材５０は、スイング機能を有しないもので、単に内部にホース類（図示せず）を通すためのものであるが、スイング機能を有する中空部材１０の場合と同様に、両端がそれぞれキャブデッキ３及び上部旋回体１に対し取り外し可能に連結されている。   8 to 10, the cab deck 3 is attached to the front portion of the upper swing body 1 so as to protrude laterally from the side deck portion 1 a of the upper swing body 1, and the inner side frame portion of the cab deck 3. A hollow member 50 is disposed between 3c and the front end of the upper swing body 1. The hollow member 50 does not have a swing function, and is merely for passing hoses (not shown) therein. However, as in the case of the hollow member 10 having a swing function, both ends have cabs. Removably connected to the deck 3 and the upper swing body 1.

すなわち、上記中空部材５０は、図１１ないし図１３に拡大詳示するように、内部にホース類が挿通可能になるように矩形のダクト状に形成されており、また内部にホース類を支持するための１つの支持棚５１を有している。この中空部材５０の肉厚は、上記中空部材１０のそれよりも薄く設定されている。また、中空部材５０は、平面的に見て中央部で折れ曲がった略への字状に形成されており、その両端にそれぞれキャブデッキ３の内側側枠部３ｃ及び上部旋回体１の前端部にボルト５２，５３止めにより取り外し可能に接合される接合プレート５４，５５を有している。   That is, the hollow member 50 is formed in a rectangular duct shape so that the hoses can be inserted therein, and supports the hoses therein, as shown in enlarged detail in FIGS. It has one support shelf 51 for the purpose. The thickness of the hollow member 50 is set to be thinner than that of the hollow member 10. Further, the hollow member 50 is formed in a substantially U-shape bent at the center portion when seen in a plan view, and the inner side frame portion 3c of the cab deck 3 and the front end portion of the upper swing body 1 are respectively provided at both ends thereof. It has joining plates 54 and 55 detachably joined by bolts 52 and 53.

上記中空部材５０のキャブデッキ側の接合プレート５４は、中空部材５０の断面形状よりも一回り大きい略矩形状のもので、この接合プレート５４の中央部には中空部材５０の内側に対応して上半部が矩形状でかつ下半部が半円形状の開口部５６が設けられており、この開口部５６及びキャブデッキ３の内側側枠部３ｃの開口部１９（図９参照）を通して中空部材５０とキャブデッキ３との間に跨ってホース類が配置される。接合プレート５４の左右両側縁部は、それぞれ中空部材１３の外側でこれに近接する上下２個所（計４個所）でボルト５２止めによりキャブデッキ３の内側側枠部３ｃに取り外し可能に接合されている。また、中空部材５０の上部旋回体側の接合プレート５５は、中空部材５０の断面形状と比べて横方向に２倍程度長い矩形状のもので、図１０に示す如くこの接合プレート５５の前方から見て右側部分には中空部材５０の内側に対応して略半円形状の開口部５７が設けられており、この開口部５７及び上部旋回体１の前端部の開口部２１（図６参照）を通して中空部材５０と上部旋回体１との間に跨ってホース類が配置される。接合プレート５５の左右両側縁部は、それぞれ上下２個所ずつ計４個所でボルト５３止めにより取り外し可能に接合されている。   The joining plate 54 on the cab deck side of the hollow member 50 has a substantially rectangular shape that is slightly larger than the cross-sectional shape of the hollow member 50, and a central portion of the joining plate 54 corresponds to the inside of the hollow member 50. An opening 56 having a rectangular upper half and a semicircular lower half is provided, and is hollow through the opening 56 and the opening 19 (see FIG. 9) of the inner side frame 3c of the cab deck 3. Hoses are disposed between the member 50 and the cab deck 3. The left and right side edges of the joining plate 54 are removably joined to the inner side frame 3c of the cab deck 3 by bolts 52 at two upper and lower places (four places in total) close to the outside of the hollow member 13, respectively. Yes. Further, the joining plate 55 on the upper rotating body side of the hollow member 50 is a rectangular shape that is about twice as long as the cross-sectional shape of the hollow member 50 in the lateral direction, and is viewed from the front of the joining plate 55 as shown in FIG. On the right side, a substantially semicircular opening 57 is provided corresponding to the inside of the hollow member 50, and through this opening 57 and the opening 21 at the front end of the upper swing body 1 (see FIG. 6). A hose is disposed between the hollow member 50 and the upper swing body 1. The left and right side edge portions of the joining plate 55 are detachably joined by bolts 53 at a total of four places, two at each of the top and bottom.

上記中空部材５０がスイング機能を有しないものの場合、上記キャブデッキ３は、その後枠部３ｂと内側側枠部３ｃの２個所でそれぞれ上部旋回体１側に固定して取り付けられている。そのうち、キャブデッキ３の後枠部３ｂ側の固定部では、上述した中空部材１０がスイング機能を有するものの場合における固定部材３１（図７参照）の代わりに、通常のボルト６１を用い、このボルト６１のねじ部を、サイドデッキ部１ａの前端部に取り付けたアングル材３２の貫通孔３３（図７参照）を通してキャブデッキ３の後枠部３ｂに設けたねじ孔３４（同じく図７参照）にねじ込むことにより、キャブデッキ３の後枠部３ｂが上部旋回体１のサイドデッキ部１ａにアングル材３２を介在して固定されている。   In the case where the hollow member 50 does not have a swing function, the cab deck 3 is fixedly attached to the upper revolving unit 1 side at two locations of the frame portion 3b and the inner side frame portion 3c. Among them, in the fixing portion on the rear frame portion 3b side of the cab deck 3, a normal bolt 61 is used instead of the fixing member 31 (see FIG. 7) in the case where the hollow member 10 described above has a swing function. 61 is threaded into a screw hole 34 (also see FIG. 7) provided in the rear frame portion 3b of the cab deck 3 through a through hole 33 (see FIG. 7) of the angle member 32 attached to the front end of the side deck portion 1a. By screwing, the rear frame portion 3b of the cab deck 3 is fixed to the side deck portion 1a of the upper swing body 1 with an angle member 32 interposed therebetween.

また、キャブデッキ３の内側側枠部３ｃの固定部では、図１１及び図１２に詳示するように、キャブデッキ３の内側側枠部３ｃの外面に、左右両側縁部にそれぞれ３つずつ計６つの貫通孔６２，６２，…を有する矩形状の当接プレート６３が固定されている一方、上部旋回体１に、この当接プレート６３の貫通孔６２に対応して、それぞれ上下方向に３つずつのねじ孔６４を有する左右２つの固定プレート６５，６５が固定されている。そして、当接プレート６３と固定プレート６５とを重ね合わせ、キャブデッキ３の内側側枠部３ｃの内面側から６つのボルト６６，６６，…をそれぞれ当接プレート６３の貫通孔６２を通して固定プレート６５のねじ孔６４にねじ込むことにより、キャブデッキ３の内側側枠部３ｃが上部旋回体１に当接プレート６３及び固定プレート６５などを介在して固定されている。ここで、上述した中空部材１０がスイング機能を有するものの場合、図５に明示するように、当接プレート６３はキャブデッキ３の内側側枠部３ｃの外面に固定されていないが、固定プレート６５は、上部旋回体１に同様に固定されている。   Further, in the fixing portion of the inner side frame portion 3c of the cab deck 3, as shown in detail in FIG. 11 and FIG. 12, three each on the outer surface of the inner side frame portion 3c of the cab deck 3 and on the left and right side edge portions. While a rectangular contact plate 63 having a total of six through holes 62, 62,... Is fixed, the upper revolving body 1 is respectively arranged in the vertical direction corresponding to the through holes 62 of the contact plate 63. Two left and right fixing plates 65, 65 each having three screw holes 64 are fixed. Then, the contact plate 63 and the fixed plate 65 are overlapped, and six bolts 66, 66,... Are respectively passed through the through holes 62 of the contact plate 63 from the inner surface side of the inner side frame portion 3c of the cab deck 3. By screwing into the screw hole 64, the inner side frame portion 3c of the cab deck 3 is fixed to the upper swing body 1 with the contact plate 63 and the fixing plate 65 interposed therebetween. Here, in the case where the hollow member 10 described above has a swing function, the contact plate 63 is not fixed to the outer surface of the inner side frame portion 3c of the cab deck 3, as clearly shown in FIG. Is fixed to the upper swing body 1 in the same manner.

尚、中空部材５０がスイング機能を有しないものの場合、中空部材１０がスイング機能を有するものの場合の如き固定部４１やストップラバー４５，４６など中空部材のスイング機能に関連する部材・部品を設けていないが、クローラクレーンの上部旋回体１及びキャブデッキ３などのその他の構成は、上述した中空部材１０がスイング機能を有するものの場合と同じであり、同一部材には同一符号を付してその説明は省略する。   In the case where the hollow member 50 does not have a swing function, members / parts related to the swing function of the hollow member such as the fixing portion 41 and the stop rubbers 45 and 46 are provided as in the case where the hollow member 10 has a swing function. However, other configurations such as the upper swing body 1 and the cab deck 3 of the crawler crane are the same as those in the case where the hollow member 10 described above has a swing function. Is omitted.

従って、上記実施形態においては、中空部材１０がスイング機能を有するものの場合と、中空部材５０がスイング機能を有しないものの場合のいずれでも中空部材１０，５０が同様にキャブデッキ３の内側側枠部３ｃと上部旋回体１の前端部との間に設けられているとともに、その両端がそれぞれキャブデッキ３の内側側端部３ｃ及び上部旋回体１の前端部に対し取り外し可能に連結されているため、輸出先の変更に伴う中空部材１０，５０の変更、換言すればキャブデッキ取付構造の回動式と固定式との間の変更を容易に行うことができる。   Accordingly, in the above-described embodiment, the hollow members 10 and 50 are similarly provided on the inner side frame portion of the cab deck 3 regardless of whether the hollow member 10 has a swing function or the hollow member 50 does not have a swing function. 3c and the front end portion of the upper swing body 1 and both ends thereof are detachably connected to the inner end portion 3c of the cab deck 3 and the front end portion of the upper swing body 1 respectively. The change of the hollow members 10, 50 accompanying the change of the export destination, in other words, the change of the cab deck mounting structure between the rotating type and the fixed type can be easily performed.

しかも、上記中空部材１０，５０は、スイング機能を有するか否かに拘わらず、いずれも内部にホース類を通す機能を有するものであり、その内部を通してホース類を上部旋回体１側からキャブデッキ３側に配置する構成は変わらないので、それに伴うキャブデッキ３及び上部旋回体１の構造などをも変更する必要がなく、この点からも輸出先の変更に伴うキャブデッキ取付構造の回動式と固定式との間の変更を容易に行うことができる。また、中空部材５０がスイング機能を有しないものの場合その中空部材５０は内部にホース類を通すためのダクトとしての機能を有すれば足りるため、その肉厚を薄くすることなどでその重量を軽減することができ、北米の重量規制などに抵触することなく実施化を図ることができる。   Moreover, regardless of whether the hollow members 10 and 50 have a swing function, the hollow members 10 and 50 have a function of passing hoses through the inside, and the hoses are passed through the inside from the upper swing body 1 side to the cab deck. Since the configuration arranged on the side 3 does not change, there is no need to change the structure of the cab deck 3 and the upper swing body 1 associated therewith. From this point as well, the cab deck mounting structure according to the change of export destination can be rotated. And the fixed type can be easily made. Further, in the case where the hollow member 50 does not have a swing function, it is sufficient that the hollow member 50 has a function as a duct for passing hoses inside, so that the weight is reduced by reducing the thickness thereof. And can be implemented without conflicting with North American weight regulations.

特に、本実施形態では、中空部材１０がスイング機能を有するものの場合その中空部材１０の２つの部材１３，１６のうち、キャブ側部材１３の接合プレート１２はキャブデッキ３の内側側枠部３ｃに、旋回体側部材１６の接合プレート１５は上部旋回体１の前端部にそれぞれボルト１１，１４止めにより取り外し可能に接合されているため、中空部材１０とキャブデッキ３及び上部旋回体１との連結を確実に行うことができるとともに、その取り付け及び取り外し作業を容易に行うことができる。   In particular, in this embodiment, when the hollow member 10 has a swing function, of the two members 13 and 16 of the hollow member 10, the joining plate 12 of the cab side member 13 is connected to the inner side frame portion 3 c of the cab deck 3. Since the joining plate 15 of the revolving body side member 16 is removably joined to the front end portion of the upper revolving body 1 with bolts 11 and 14, respectively, the hollow member 10 and the cab deck 3 and the upper revolving body 1 are connected. While being able to perform reliably, the attachment and removal operation | work can be performed easily.

また、上記旋回体側部材１６は、その接合プレート１５から互いに上下方向に所定距離隔てて水平方向に延出する上側水平プレート２３及び下側水平プレート２４を有してなり、この両水平プレート２３，２４の間にキャブ側部材１３の他端部が配置され、キャブ側部材１３の下面壁１３ａは下側水平プレート２４にベアリング２５を介して垂直軸回りに回動可能に連結されているとともに、キャブ側部材１３の上面壁１３ｂは上側水平プレート２３にベアリング２５と同一軸上に位置する支持ピン２７回りに回動可能に連結されているため、中空部材１０のキャブ側部材１３と旋回体側部材１６との結合部分を開放状態に保つことができ、中空部材１０のダクトとしての機能を損うことなく、実施化を有効に図ることができる。その上、クレーン作業時及びトレーラ輸送時の振動によるベアリング２５の負荷を支持ピン２７により軽減することもできる。   The revolving unit side member 16 has an upper horizontal plate 23 and a lower horizontal plate 24 that extend horizontally from the joining plate 15 at a predetermined distance in the vertical direction. The other end portion of the cab side member 13 is disposed between 24, and the lower surface wall 13a of the cab side member 13 is connected to the lower horizontal plate 24 via a bearing 25 so as to be rotatable about a vertical axis, Since the upper surface wall 13b of the cab side member 13 is connected to the upper horizontal plate 23 so as to be rotatable around a support pin 27 located on the same axis as the bearing 25, the cab side member 13 and the revolving body side member of the hollow member 10 are connected. 16 can be kept open, and implementation can be effectively achieved without impairing the function of the hollow member 10 as a duct. In addition, the load on the bearing 25 due to vibration during crane operation and trailer transportation can be reduced by the support pins 27.

さらに、中空部材１０がスイング機能を有するものの場合、キャブデッキ３が上部旋回体１のサイドデッキ部１ａよりも側方に突出する作業位置に位置するときこのキャブデッキ３の後枠部３ｂを上部旋回体１のサイドデッキ部１ａに固定する固定部材３１とは別に、キャブデッキ３の回動を規制するロック部材３６が設けられているため、固定部材３１の固定を解除した際地面の傾斜などに起因してキャブデッキ３が作業者の意思に反して作業位置から輸送位置に回動するのを確実に阻止することができ、安全性の確保を図ることができる。   Further, in the case where the hollow member 10 has a swing function, when the cab deck 3 is positioned at a working position that protrudes to the side of the side deck portion 1a of the upper swing body 1, the rear frame portion 3b of the cab deck 3 is placed on the upper side. In addition to the fixing member 31 that is fixed to the side deck portion 1a of the revolving structure 1, a lock member 36 that restricts the rotation of the cab deck 3 is provided. Therefore, the cab deck 3 can be reliably prevented from rotating from the work position to the transport position against the operator's intention, and safety can be ensured.

その上、上記ロック部材３６は、その一端が上部旋回体２側の支持プレート３７に回動可能に支持され、他端がキャブデッキ３側である中空部材１０のキャブ側部材１３の下面壁１３ａに垂下して取り付けた係合プレート３８に脱着可能に係合されているため、上記固定部材３１の固定を解除した後ロック部材３６の他端と係合プレート３８との係合を解除する際キャブデッキ３を作業位置に押さえながら係合を解除することができる。また、このロック部材３８の係合を解除し、クローラクレーンをトレーラで搬送した後にロック部材３８の他端を係合プレート３８に係合するのを忘れた場合、ロック部材３８は上部旋回体２側の支持プレート３７から垂れ下り、クレーン作業時に上部旋回体２が旋回した際他の部材に当たって金属音を発するので、ロック部材３８の係合忘れを防止することができる。   In addition, the lock member 36 has one end rotatably supported by a support plate 37 on the upper swing body 2 side and the other end on the lower surface wall 13a of the cab side member 13 of the hollow member 10 on the cab deck 3 side. When the engagement between the other end of the lock member 36 and the engagement plate 38 is released after the fixation of the fixing member 31 is released. The engagement can be released while pressing the cab deck 3 to the working position. Further, when the engagement of the lock member 38 is released and the crawler crane is transported by the trailer and forgetting to engage the other end of the lock member 38 with the engagement plate 38, the lock member 38 is moved to the upper swing body 2. When the upper revolving unit 2 is swung down from the support plate 37 on the side, and when the upper revolving unit 2 revolves during a crane operation, it makes a metal sound when it hits another member, so that forgetting to engage the lock member 38 can be prevented.

一方、中空部材５０がスイング機能を有しないものの場合この中空部材５０は、中央部で折れ曲がった形状に形成され、その一端の接合プレート５４がキャブデッキ３の内側側枠部３ｃに、他端の接合プレート５５が上部旋回体１の前端部にそれぞれボルト５２，５３止めにより取り外し可能に接合されているため、中空部材５０とキャブデッキ３及び上部旋回体１との連結を確実に行うことができるとともに、その取り付け及び取り外し作業を容易に行うことができる。   On the other hand, in the case where the hollow member 50 does not have a swing function, the hollow member 50 is formed in a bent shape at the center portion, and the joining plate 54 at one end thereof is connected to the inner side frame portion 3c of the cab deck 3 and the other end. Since the joining plate 55 is detachably joined to the front end portion of the upper swing body 1 with bolts 52 and 53, respectively, the hollow member 50, the cab deck 3 and the upper swing body 1 can be reliably connected. At the same time, the attaching and detaching operations can be easily performed.

加えて、中空部材１０がスイング機能を有するものの場合と、中空部材５０がスイング機能を有しないものの場合のいずれにもキャブデッキ３の内側側枠部３ｃを上部旋回体１に固定するためのねじ孔６４を有する固定プレート６５が上部旋回体１に固定されているため、輸出先の変更に伴うキャブデッキ取付構造の固定式と回動式との間の変更をより容易に行うことができる。しかも、固定プレート６５自体はそれ程重量物ではないので、固定式のキャブデッキ取付構造の場合に重量規制の問題が生じることはなく、実施化を図ることができる。   In addition, a screw for fixing the inner side frame portion 3c of the cab deck 3 to the upper swing body 1 in both the case where the hollow member 10 has a swing function and the case where the hollow member 50 does not have a swing function. Since the fixed plate 65 having the hole 64 is fixed to the upper swing body 1, the change between the fixed type and the rotary type of the cab deck mounting structure accompanying the change of the export destination can be performed more easily. In addition, since the fixed plate 65 itself is not so heavy, there is no problem of weight restriction in the case of a fixed cab deck mounting structure, and implementation can be achieved.

尚、本発明は上記実施形態に限定されるものではなく、その他種々の実施形態を包含するものである。例えば上記実施形態では、中空部材５０がスイング機能を有しないものの場合、この中空部材５０を中央部で折れ曲がった略への字状に形成し、その両端をそれぞれキャブデッキ３の内側側枠部３ｃ及び上部旋回体１の前端部にボルト５２，５３止めにより取り外し可能に連結したが、本発明は、中空部材を中央部で略直角に折れ曲がったＬ字状に形成し、その両端をそれぞれキャブデッキ３の内側側枠部３ｃ及び上部旋回体１の前端部に取り外し可能に連結し、あるいは上部旋回体１の前端部との間に隙間が生じないように中空部材を、キャブデッキ３の内側側枠部３ｃから上部旋回体１の前端部に沿って幅方向に延ばして配置し、この中空部材の直交する二辺のうちの一辺をキャブデッキ３の内側側枠部３ｃに、他の一辺を上部旋回体１の前端部にそれぞれ取り外し可能に結合してもよい。   In addition, this invention is not limited to the said embodiment, Other various embodiment is included. For example, in the above-described embodiment, when the hollow member 50 does not have a swing function, the hollow member 50 is formed in a substantially U-shape bent at the center, and both ends thereof are respectively the inner side frame portions 3c of the cab deck 3. And the front end of the upper swing body 1 is removably connected with bolts 52 and 53, but the present invention forms a hollow member in an L shape bent at a substantially right angle at the center, and both ends thereof are respectively cab decks. 3 is connected to the inner side frame portion 3c of the upper revolving unit 1 and the front end portion of the upper revolving unit 1 so as to be detachable, or a hollow member is provided on the inner side of the cab deck 3 so that no gap is formed between the front end portion of the upper revolving unit 1 Arranged from the frame 3c extending in the width direction along the front end of the upper swing body 1, one of the two orthogonal sides of the hollow member is set to the inner frame 3c of the cab deck 3, and the other is Upper swing body 1 Respectively to the front end portion may be coupled detachably.

また、上記実施形態では、中空部材１０がスイング機能を有するものの場合中空部材１０のキャブ側部材１３を、中空部材５０がスイング機能を有しないものの場合中空部材５全体をそれぞれ、内部にホース類が挿通可能になるように矩形のダクト状に形成したが、本発明は、これら中空部材１０，５０又はその一部を円形や楕円形などのダクト状に形成してもよいのは勿論である。   Moreover, in the said embodiment, when the hollow member 10 has a swing function, the cab side member 13 of the hollow member 10 is used, and when the hollow member 50 does not have a swing function, the entire hollow member 5 has hoses inside. Although it was formed in a rectangular duct shape so that it can be inserted, it is needless to say that in the present invention, these hollow members 10, 50 or a part thereof may be formed in a duct shape such as a circle or an ellipse.

本発明の実施形態に係る回動式のキャブデッキ取付構造を装備したクローラクレーンの上部旋回体の前部付近の平面図である。It is a top view of the front part vicinity of the upper revolving body of the crawler crane equipped with the rotation type cab deck attachment structure which concerns on embodiment of this invention. 図１のＥ−Ｅ線における断面図である。It is sectional drawing in the EE line | wire of FIG. 図１のＦ−Ｆ線に沿って見た矢視図である。It is the arrow line view seen along the FF line of FIG. 図１のＧ−Ｇ線における拡大断面図である。It is an expanded sectional view in the GG line of FIG. 図１の中空部材付近の拡大図である。It is an enlarged view of the hollow member vicinity of FIG. 図５のＨ−Ｈ線における断面図である。It is sectional drawing in the HH line | wire of FIG. 図１のキャブデッキの後枠部付近の拡大図である。FIG. 2 is an enlarged view of the vicinity of a rear frame portion of the cab deck in FIG. 1. 固定式のキャブデッキ取付構造を装備したクローラクレーンの上部旋回体の前部付近の一部切開した平面図である。It is the top view which partially cut off the vicinity of the front part of the upper revolving body of the crawler crane equipped with the fixed cab deck attachment structure. 図８のＩ−Ｉ線における断面図である。It is sectional drawing in the II line | wire of FIG. 図８のＪ−Ｊ線に沿って見た矢視図である。It is the arrow line view seen along the JJ line of FIG. 図８のＫ−Ｋ線における拡大断面図である。It is an expanded sectional view in the KK line of FIG. 図８の中空部材付近の拡大図である。It is an enlarged view of the hollow member vicinity of FIG. 図１２のＬ−Ｌ線における拡大断面図である。It is an expanded sectional view in the LL line of FIG. 従来例を示す固定式のキャブデッキ取付構造を装備したクローラクレーンの上部旋回体の前部付近の平面図である。It is a top view of the front part vicinity of the upper revolving body of the crawler crane equipped with the fixed cab deck attachment structure which shows a prior art example. 同じく回動式のキャブデッキ取付構造を装備したクローラクレーンの上部旋回体の前部付近の平面図である。It is the top view of the front part vicinity of the upper revolving body of the crawler crane similarly equipped with the rotation type cab deck attachment structure.

符号の説明Explanation of symbols

１ 上部旋回体
３ キャブデッキ
１０，５０ 中空部材
１２，１５，５４，５５ 接合プレート
１３ キャブ側部材
１６ 旋回体側部材
２３ 上側水平プレート
２４ 下側水平プレート
２５ ベアリング
２７ 支持ピン
３１ 固定部材
３６ ロック部材
３８ 係合プレート（係合部）
６４ ねじ孔
６６ 固定プレート
DESCRIPTION OF SYMBOLS 1 Upper revolving body 3 Cab deck 10,50 Hollow member 12,15,54,55 Joint plate 13 Cab side member 16 Revolving body side member 23 Upper horizontal plate 24 Lower horizontal plate 25 Bearing 27 Support pin 31 Fixing member 31 Locking member 38 Engagement plate (engagement part)
64 Screw hole 66 Fixing plate

Claims (6)

上部旋回体の前部にキャブデッキが上部旋回体の他の部位よりも側方に突出して取り付けられ、このキャブデッキ上にキャブが設置されてなるクローラクレーンにおいて、
上記キャブデッキと上部旋回体との間には内部にホース類を通すための中空部材が設けられ、この中空部材は、キャブデッキを垂直軸回りに回動可能に支持するためのスイング機能を有するものと、この機能を有しないものとに変更可能になるようにキャブデッキ及び上部旋回体に対しそれぞれ取り外し可能に連結されていることを特徴とするクローラクレーン。 In the crawler crane in which the cab deck is attached to the front portion of the upper swing body so as to protrude sideward from the other parts of the upper swing body, and the cab is installed on the cab deck.
A hollow member for allowing hoses to pass therethrough is provided between the cab deck and the upper swing body, and the hollow member has a swing function for supporting the cab deck so as to be rotatable about a vertical axis. A crawler crane, which is detachably connected to the cab deck and the upper swing body so as to be changeable to one that does not have this function. 上記中空部材がスイング機能を有するものの場合、この中空部材は、一端にキャブデッキにボルト止めにより取り外し可能に接合される接合プレートを有するキャブ側部材と、一端に上部旋回体にボルト止めにより取り外し可能に接合される接合プレートを有する旋回体側部材とからなり、キャブ側部材と旋回体側部材の他端同士は、ベアリングを介して垂直軸回りに回動可能に連結されている請求項１記載のクローラクレーン。   When the hollow member has a swing function, the hollow member can be removed by a cab side member having a joining plate that is removably joined to the cab deck by bolting at one end and the upper revolving body by bolting at one end. 2. The crawler according to claim 1, further comprising: a revolving body side member having a joining plate joined to the cab, wherein the cab side member and the other end of the revolving body side member are connected to each other so as to be rotatable about a vertical axis via a bearing. crane. 上記旋回体側部材は、その接合プレートから互いに上下方向に所定距離隔てて水平方向に延出する上下２つの水平プレートを有してなり、この両水平プレートの間に上記キャブ側部材の他端部が配置され、キャブ側部材の下部は下側の水平プレート上にベアリングを介して連結されているとともに、キャブ側部材の上部は上側の水平プレートにベアリングと同一軸上に位置する支持ピン回りに回動可能に連結されている請求項２記載のクローラクレーン。   The revolving member side member has two upper and lower horizontal plates extending from the joint plate in the horizontal direction at a predetermined distance from each other in the vertical direction, and the other end portion of the cab side member between the horizontal plates. The lower part of the cab side member is connected to the lower horizontal plate via a bearing, and the upper part of the cab side member is connected to the upper horizontal plate around a support pin located on the same axis as the bearing. The crawler crane of Claim 2 connected so that rotation is possible. 上記キャブデッキが上部旋回体の前部側方に突出する作業位置に位置するときこのキャブデッキを上部旋回体に固定する固定部材とは別に、キャブデッキの回動を規制するロック部材が設けられており、このロック部材の一端は上部旋回体側に回動可能に支持され、他端は、キャブデッキ側に設けた係合部に脱着可能に係合されている請求項２又は３記載のクローラクレーン。   In addition to the fixing member that fixes the cab deck to the upper swing body when the cab deck is located at a working position that protrudes to the front side of the upper swing body, a lock member that restricts the rotation of the cab deck is provided. 4. The crawler according to claim 2, wherein one end of the lock member is rotatably supported on the upper swing body side, and the other end is detachably engaged with an engaging portion provided on the cab deck side. crane. 上記中空部材がスイング機能を有しないものの場合、この中空部材は、中央部で折れ曲がった形状に形成され、その両端にそれぞれキャブデッキ及び上部旋回体にボルト止めにより取り外し可能に接合される接合プレートを有してなる請求項１ないし請求項４のいずれか一つに記載のクローラクレーン。   In the case where the hollow member does not have a swing function, the hollow member is formed in a bent shape at the center, and a joining plate that is removably joined to the cab deck and the upper swing body by bolting at both ends thereof, respectively. The crawler crane as described in any one of Claim 1 thru | or 4 which has. 上記中空部材がスイング機能を有しないものの場合、キャブデッキは、上部旋回体に固定したプレートのねじ孔にボルトをキャブデッキ側からねじ込んで上部旋回体に固定されており、上記プレートは、中空部材がスイング機能を有するものの場合にも上部旋回体に固定されている請求項１ないし請求項５のいずれか一つに記載のクローラクレーン。
In the case where the hollow member does not have a swing function, the cab deck is fixed to the upper swing body by screwing a bolt into the screw hole of the plate fixed to the upper swing body from the cab deck side, and the plate is The crawler crane according to any one of claims 1 to 5, wherein the crawler crane is fixed to the upper-part turning body even in the case of the one having a swing function.
JP2004365668A 2004-12-17 2004-12-17 Crawler crane Active JP4182947B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014040722A (en) * 2012-08-21 2014-03-06 Kobelco Contstruction Machinery Ltd Work machine
CN104444823A (en) * 2014-12-23 2015-03-25 河南新科起重机股份有限公司 Novel bridge-frame crane
JP2018024503A (en) * 2016-08-09 2018-02-15 株式会社神戸製鋼所 Work machine
WO2022124097A1 (en) 2020-12-08 2022-06-16 コベルコ建機株式会社 Crane

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014040722A (en) * 2012-08-21 2014-03-06 Kobelco Contstruction Machinery Ltd Work machine
CN104444823A (en) * 2014-12-23 2015-03-25 河南新科起重机股份有限公司 Novel bridge-frame crane
JP2018024503A (en) * 2016-08-09 2018-02-15 株式会社神戸製鋼所 Work machine
WO2022124097A1 (en) 2020-12-08 2022-06-16 コベルコ建機株式会社 Crane

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