JP4313220B2 - Construction machinery - Google Patents

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JP4313220B2
JP4313220B2 JP2004035372A JP2004035372A JP4313220B2 JP 4313220 B2 JP4313220 B2 JP 4313220B2 JP 2004035372 A JP2004035372 A JP 2004035372A JP 2004035372 A JP2004035372 A JP 2004035372A JP 4313220 B2 JP4313220 B2 JP 4313220B2
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slip
pin
floor board
floor
entrance
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JP2005226307A (en
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茂 平澤
元 石井
庄吾 木村
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Hitachi Construction Machinery Co Ltd
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Hitachi Construction Machinery Co Ltd
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Description

本発明は、例えば油圧ショベル、油圧クレーン、ホイールローダ等として好適に用いられる建設機械に関する。   The present invention relates to a construction machine suitably used as, for example, a hydraulic excavator, a hydraulic crane, a wheel loader, or the like.

一般に、建設機械としては油圧ショベル等が知られており、この油圧ショベルは、履帯を周回駆動することによって自走可能な下部走行体と、該下部走行体上に旋回可能に搭載された上部旋回体と、該上部旋回体の前側に俯仰動可能に設けられた作業装置とによって大略構成されている。また、上部旋回体は、旋回フレーム上の左側寄りに位置してオペレータが着座する運転席を有し、該運転席の前側にはオペレータの足元に位置して床板が設けられている。また、運転席の側方、前方等には、作業装置を操作する操作レバー、下部走行体を走行させる走行レバー等が配設されている。   In general, a hydraulic excavator or the like is known as a construction machine. The hydraulic excavator includes a lower traveling body capable of self-propelling by driving a crawler track, and an upper swing mounted on the lower traveling body so as to be capable of pivoting. The main body and a working device provided on the front side of the upper revolving body so as to be able to move up and down are generally constituted. The upper swing body has a driver's seat on the left side of the swing frame on which the operator sits, and a floor board is provided on the front side of the driver's seat at the operator's feet. Further, an operation lever for operating the working device, a traveling lever for traveling the lower traveling body, and the like are disposed on the side, front, and the like of the driver's seat.

そして、オペレータが運転席に搭乗する場合には、該オペレータは、例えば下部走行体の履帯上に乗り、床板の乗降口側となる左側部分に足を掛けて運転席に乗り込むようにしている。   When the operator gets on the driver's seat, the operator, for example, gets on the crawler belt of the lower traveling body and gets on the driver's seat with his / her feet on the left side portion of the floor board on the entrance / exit side.

ここで、油圧ショベルは泥濘地等で作業を行うことがあり、このような作業現場ではオペレータの靴底にぬかるんだ泥が付着する。これにより、オペレータは、運転席に乗降するために床板の左側部分に足を掛けたときに滑ることがある。   Here, the hydraulic excavator sometimes performs work in a muddy ground or the like, and muddy mud adheres to the shoe sole of the operator at such a work site. Thereby, the operator may slip when he / she puts his / her foot on the left side portion of the floor board to get on / off the driver's seat.

そこで、油圧ショベルには、運転席に乗り降りするときに掛けた足が滑らないように、乗降口側に滑止め手段を設けたものがある。この滑止め手段の1つには、例えばプレス加工、鋳造加工等を施すことにより、板材に上向きに突出した複数個の角筒状突起を一体形成したものがある(例えば、特許文献1参照)。また、滑止め手段には、例えば板材にプレス加工を施すことにより複数個の山形状突起を一体的に形成したものもある(例えば、特許文献2参照)。   Therefore, some hydraulic excavators are provided with anti-slip means on the entrance / exit side so that the legs on the driver's seat do not slip. As one of the anti-slip means, there is one in which a plurality of square cylindrical protrusions protruding upward are integrally formed on a plate material by, for example, pressing, casting, or the like (see, for example, Patent Document 1). . In addition, there is a non-slip means in which a plurality of mountain-shaped protrusions are integrally formed by, for example, pressing a plate material (see, for example, Patent Document 2).

特開2000−52864号公報JP 2000-52864 A 特開2000−291069号公報JP 2000-291069 A

ところで、上述した特許文献1の滑止め手段は、複数個の角筒状突起によって形成しているから、各角筒状突起の内側、各角筒状突起間の溝部分等に泥が堆積して目詰まりし易く、また堆積した泥を容易に除去することができない。このため、角筒状突起は、何回か乗り降りしているうちに堆積した泥に埋もれてしまい、滑止め効果が薄れてしまうという問題がある。また、堆積した泥は、除去するための清掃作業に手間を要してしまうという問題もある。   By the way, since the non-slip means of the above-mentioned Patent Document 1 is formed by a plurality of rectangular tube-like projections, mud accumulates on the inside of each rectangular tube-like projection, the groove portion between each rectangular tube-like projection, and the like. It is easily clogged and accumulated mud cannot be removed easily. For this reason, there is a problem that the rectangular tube-like projections are buried in the accumulated mud while getting on and off several times, and the anti-slip effect is reduced. In addition, the accumulated mud has a problem that it takes time and effort to clean it.

また、特許文献2の山形状突起は、板体の一部を山形状に変形させているだけであるから、その先端が丸くなっており、足を掛けたときに靴底に引掛かり難く、十分な滑止め効果を得ることができないという問題がある。   Moreover, since the mountain-shaped protrusion of Patent Document 2 is only partly deforming the plate body into a mountain shape, its tip is round, and it is difficult to get caught on the shoe sole when the foot is hung. There is a problem that a sufficient anti-slip effect cannot be obtained.

さらに、上述した角筒状突起、山形状突起は、いずれもプレス加工等を施すことにより所望の形状に成形しているから、成形型が必要になり、製造コストが嵩んでしまうという問題がある。   Furthermore, since the above-described rectangular tube-shaped protrusion and mountain-shaped protrusion are both formed into a desired shape by performing press working or the like, there is a problem that a forming die is required and the manufacturing cost increases. .

本発明は上述した従来技術の問題に鑑みなされたもので、本発明の目的は、滑止め手段による滑止め効果を十分に得ることができ、また滑止め手段を安価に製造できるようにした建設機械を提供することにある。   The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a construction capable of sufficiently obtaining a non-slip effect by the anti-slip means and manufacturing the anti-slip means at a low cost. To provide a machine.

請求項1の発明による建設機械は、自走可能な下部走行体と、該下部走行体上に旋回可能に搭載され該下部走行体と共に車体を構成する上部旋回体と、該上部旋回体の前側に俯仰動可能に設けられ土砂の掘削作業を行う作業装置と、前記上部旋回体に設けられオペレータが着座する運転席と、該運転席の前側に位置してオペレータの足元に設けられた床板と、オペレータが乗り降りする該床板の乗降口側に設けられ該床板の乗降口側に足を掛けたときの滑りを止める滑止め手段とを備えている。 A construction machine according to a first aspect of the present invention includes a self-propelled lower traveling body, an upper revolving body that is turnably mounted on the lower traveling body and forms a vehicle body together with the lower traveling body, and a front side of the upper revolving body A working device for excavating earth and sand that can be raised and lowered, a driver seat that is provided on the upper swing body and on which an operator is seated, and a floor plate that is located in front of the driver seat and is provided at an operator's feet And an anti-slip means provided on the entrance / exit side of the floor board on which the operator gets on / off, and stops slipping when he / she puts his / her foot on the entrance / exit side of the floor board.

そして、上述した課題を解決するために、請求項1の発明が採用する構成の特徴は、前記床板は、空調ユニットを収容する空調ユニット収容凹部が設けられた下部床板と、該下部床板の上側に設けられ前記空調ユニット収容凹部を覆うと共に前記乗降口側が一段低い段差部になった上部床板とにより二重床板構造とし、前記滑止め手段は、前記上部床板の段差部に取付けられ前記床板の乗降口側に上向きに突出する複数本の滑止めピンによって構成したことにある。 In order to solve the above-described problem, the invention adopts the feature of the configuration according to claim 1 in that the floor panel includes a lower floor board provided with an air conditioning unit housing recess for housing an air conditioning unit, and an upper side of the lower floor board. The floor plate is provided with an upper floor plate that covers the air conditioning unit housing recess and has a step portion that is one step lower on the entrance / exit side, and the non- slip means is attached to the step portion of the upper floor plate. It lies in the configuration by a plurality of anti-slip pin projecting upwardly on entrance side.

請求項の発明によると、前記各滑止めピンは、前記車体の側面に沿うように前,後方向に並べて配置する構成としたことにある。 According to a second aspect of the present invention, the anti-slip pins are arranged side by side in the front and rear directions along the side surface of the vehicle body.

請求項の発明によると、前記各滑止めピンは、前記床板上に敷設されたフロアマットの厚さ寸法と同等または僅かに大きな突出寸法をもって形成する構成としたことにある。 According to a third aspect of the present invention, each of the non-slip pins is formed to have a protruding dimension that is equal to or slightly larger than the thickness dimension of the floor mat laid on the floor board.

請求項の発明によると、前記床板の乗降口側には複数個のピン貫通穴を設け、前記各滑止めピンは、前記床板のピン貫通穴を貫通して上側に突出するピン部材と、該ピン部材の下部に拡径して設けられ前記床板の下面に溶接手段を用いて取付けられる取付板とにより構成したことにある。 According to the invention of claim 4, a plurality of pin through holes are provided on the entrance side of the floor board, and each of the anti-slip pins penetrates through the pin through hole of the floor board and protrudes upward, The mounting plate is provided with an enlarged diameter under the pin member and is attached to the lower surface of the floor plate using welding means.

請求項1の発明によれば、床板を、空調ユニットを収容する空調ユニット収容凹部が設けられた下部床板と、該下部床板の上側に設けられ前記空調ユニット収容凹部を覆うと共に乗降口側が一段低い段差部になった上部床板とにより二重床板構造とし、滑止め手段は、前記上部床板の段差部に取付けられ床板の乗降口側に上向きに突出する複数本の滑止めピンによって形成しているから、泥に埋もれ難く、長期間に亘り靴底の滑りを防止することができ、信頼性を向上することができる。また、各滑止めピンの周囲には、多くの隙間を形成することができ、該各滑止めピンの周囲に泥が堆積したとしても簡単に除去することができるから、滑止め機能を容易に復元することができ、また清掃作業を簡略化することができる。また、二重床板構造の上層部分を構成する上部床板には、各滑止めピンを容易に取付けることができるから、取付作業を簡略化して生産性を向上することができる。 According to the invention of claim 1, the floor board is provided with a lower floor board provided with an air conditioning unit accommodation recess for accommodating the air conditioning unit, and is provided on the upper side of the lower floor board so as to cover the air conditioning unit accommodation recess, and the entrance / exit side is one step lower. A double floor board structure is formed by the upper floor board having a stepped portion , and the non-slip means is formed by a plurality of non-slip pins that are attached to the step part of the upper floor board and project upward to the entrance / exit side of the floor board. Therefore, it is difficult to be buried in mud, and slipping of the shoe sole can be prevented over a long period of time, and reliability can be improved. In addition, a lot of gaps can be formed around each anti-slip pin, and even if mud accumulates around each anti-slip pin, it can be easily removed, so the anti-slip function can be easily performed. It can be restored and the cleaning operation can be simplified. Moreover, since each non-slip | skid pin can be easily attached to the upper floor board which comprises the upper layer part of a double floor board structure, attachment work can be simplified and productivity can be improved.

この場合、下部床板は空調ユニットを収容することができ、上部床板は前記空調ユニットを覆うことができる。また、上部床板の乗降口側は、一段低い段差部としているから、乗降するときには段差部に足を掛け易く、しかも段差部に取付けた各滑止めピンにより足を掛けたときの滑りを止めることができ、信頼性を向上することができる。さらに、滑止め手段は、別個に設けられた滑止めピンを床板の乗降口側に取付ける構成としているから、滑止めピンの長さ寸法、形状等を変えることにより、建設機械を使用する現場、建設機械の機種等に応じた滑止め効果を得ることができる。また、滑止め手段は、例えばプレス加工等に比較して安価に製造することができる。 In this case, the lower floor board can accommodate the air conditioning unit, and the upper floor board can cover the air conditioning unit. In addition, since the entrance / exit side of the upper floor board is a step part that is one step lower, it is easy to put a foot on the step part when getting on and off, and stop slipping when putting on a foot by each anti-slip pin attached to the step part And reliability can be improved. Furthermore, since the non-slip means is configured to attach a non-slip pin provided separately to the entrance / exit side of the floor plate, by changing the length dimension, shape, etc. of the anti-slip pin, the site where the construction machine is used, A non-slip effect according to the type of construction machine can be obtained. Further, the non-slip means can be manufactured at a lower cost than, for example, pressing.

請求項の発明によれば、各滑止めピンは、車体の側面に沿うように前,後方向に並べて配置しているから、前,後方向の広い範囲で足の滑りを防止することができ、信頼性を向上することができる。 According to the invention of claim 2 , since the anti-slip pins are arranged side by side in the front and rear directions along the side surface of the vehicle body, it is possible to prevent slipping of the foot in a wide range in the front and rear directions. And reliability can be improved.

請求項の発明によれば、各滑止めピンは、フロアマットの厚さ寸法と同等または僅かに大きな突出寸法をもって形成しているから、床板上にフロアマットを敷設した場合でも、靴底を各滑止めピンに引掛けて乗降することができる。 According to the invention of claim 3 , since each of the anti-slip pins is formed with a protruding dimension that is equal to or slightly larger than the thickness dimension of the floor mat, even if the floor mat is laid on the floor plate, It is possible to get on and off by hooking on each non-slip pin.

請求項の発明によれば、床板に穴あけ加工を施して複数個のピン貫通穴を形成し、該各ピン貫通穴に各滑止めピンのピン部材を下側から挿通し、取付板を床板の下面に溶接手段を用いて固着することにより、滑止め手段を構成する滑止めピンを床板に容易に取付けることができ、生産性の向上、製造コストの低減等を図ることができる。 According to the invention of claim 4 , the floor plate is drilled to form a plurality of pin through holes, the pin members of the non-slip pins are inserted into the pin through holes from below, and the mounting plate is attached to the floor plate. By fixing to the lower surface of the steel plate using welding means, the anti-slip pin constituting the anti-slip means can be easily attached to the floor plate, and productivity can be improved, manufacturing costs can be reduced, and the like.

以下、本発明の実施の形態に適用される建設機械として、キャブ仕様の油圧ショベルを例に挙げ、図1ないし図8に従って詳細に説明する。   Hereinafter, as a construction machine applied to the embodiment of the present invention, a cab specification hydraulic excavator will be described as an example and described in detail with reference to FIGS.

図1において、1は本実施の形態に適用される建設機械としてのキャブ仕様の油圧ショベルで、該油圧ショベル1は、自走可能な下部走行体2と、該下部走行体2上に旋回可能に搭載され、該下部走行体2と共に車体を構成する上部旋回体3と、該上部旋回体3の前側に俯仰動可能に設けられ、土砂の掘削作業等を行なう作業装置4とにより大略構成されている。   In FIG. 1, reference numeral 1 denotes a cab specification hydraulic excavator as a construction machine applied to the present embodiment. The hydraulic excavator 1 is capable of self-propelled lower traveling body 2 and swivel on the lower traveling body 2. The upper revolving structure 3 mounted on the upper revolving structure 2 and constituting the vehicle body together with the lower traveling structure 2 and the working device 4 provided on the front side of the upper revolving structure 3 so as to be able to be lifted and lowered and for performing excavation work of soil and the like. ing.

ここで、下部走行体2は、左,右両側にサイドフレーム5A(左側のみ図示)を有するトラックフレーム5と、該トラックフレーム5のサイドフレーム5Aの一端部に設けられた遊動輪6と、サイドフレーム5Aの他端部に設けられた駆動輪7と、前記遊動輪6と駆動輪7とに亘って巻回された履帯8とによって大略構成されている。   Here, the lower traveling body 2 includes a track frame 5 having side frames 5A (only the left side is shown) on both left and right sides, idle wheels 6 provided at one end of the side frame 5A of the track frame 5, The driving wheel 7 provided at the other end of the frame 5A and a crawler belt 8 wound around the idler wheel 6 and the driving wheel 7 are roughly constituted.

また、上部旋回体3は、例えば厚肉な鋼板等を用いて形成された旋回フレーム9と、該旋回フレーム9の後部側に搭載されたエンジン、油圧ポンプ(いずれも図示せず)等と、旋回フレーム9の右側から後側に亘って設けられ、燃料タンク、作動油タンク、ラジエータ、オイルクーラ(いずれも図示せず)、エンジン等を覆った外装カバー10と、前記旋回フレーム9の後端部に取付けられたカウンタウエイト11と、旋回フレーム9の左側に設けられた後述のキャブ12、運転席17、床板20,23、滑止めピン25等とにより大略構成されている。   Further, the upper swing body 3 includes, for example, a swing frame 9 formed using a thick steel plate, an engine mounted on the rear side of the swing frame 9, a hydraulic pump (both not shown), and the like. An outer cover 10 that is provided from the right side to the rear side of the revolving frame 9 and covers a fuel tank, a hydraulic oil tank, a radiator, an oil cooler (all not shown), an engine, etc., and a rear end of the revolving frame 9 A counterweight 11 attached to the section and a cab 12, a driver's seat 17, floor plates 20, 23, a non-slip pin 25, etc., which will be described later, provided on the left side of the revolving frame 9 are roughly configured.

次に、12は旋回フレーム9の左側に設けられたキャブで、該キャブ12は、後述する運転席17の周囲を覆うことにより、オペレータが各種操作を行なう運転室を画成するものである。そして、キャブ12は、図1、図2に示す如く、前面部12A、後面部12B、左側面部12C、右側面部12D、天井面部12Eとにより箱型状に形成されている。また、左側面部12Cには、前側寄りに位置してオペレータが乗り降りする乗降口12Fが設けられ、該乗降口12Fにはドア12Gが開閉可能に取付けられている。   Next, 12 is a cab provided on the left side of the revolving frame 9, and the cab 12 covers a periphery of a driver seat 17, which will be described later, thereby defining a cab in which an operator performs various operations. As shown in FIGS. 1 and 2, the cab 12 is formed in a box shape by a front surface portion 12A, a rear surface portion 12B, a left surface portion 12C, a right surface portion 12D, and a ceiling surface portion 12E. The left side surface portion 12C is provided with an entrance 12F that is located closer to the front side and that an operator gets on and off. A door 12G is attached to the entrance 12F so as to be opened and closed.

また、キャブ12の左側面部12Cは、ほぼ円形状に形成された上部旋回体3の外形に沿うように、乗降口12Fが設けられた前側寄り部分が前側に向けて右側に傾斜している。これにより、キャブ12は、上部旋回体3の旋回半径内に納めることができる。   Further, the left side surface portion 12C of the cab 12 is inclined rightward toward the front side so that the front side portion provided with the entrance 12F is aligned with the outer shape of the upper swing body 3 formed in a substantially circular shape. Thereby, the cab 12 can be stored within the turning radius of the upper turning body 3.

13はキャブ12の後部下側を閉塞するように旋回フレーム9の後側に設けられた運転席台座で、該運転席台座13は、図3、図4に示す如く、後側に位置して設けられたステップ状の後部台座14と、該後部台座14の前側に着脱可能に取付けられた前部台座15と、前記後部台座14から後側に延びた背板16とにより大略構成されている。   Reference numeral 13 denotes a driver seat pedestal provided on the rear side of the turning frame 9 so as to close the rear lower side of the cab 12, and the driver seat pedestal 13 is located on the rear side as shown in FIGS. A stepped rear pedestal 14 provided, a front pedestal 15 removably attached to the front side of the rear pedestal 14, and a back plate 16 extending rearward from the rear pedestal 14 are roughly configured. .

ここで、後部台座14、前部台座15は後述する運転席17を支持し、後部台座14、背板16はエンジンの前側、上側の一部を覆うエンジン前カバーを兼ねている。また、前部台座15は、後述する上部床板23等を取外し、空調ユニット26の着脱作業、メンテナンス作業等を行なうときには取外すことができる。また、背板16には、キャブ12の後側部分が取付けられている。   Here, the rear pedestal 14 and the front pedestal 15 support a driver's seat 17 described later, and the rear pedestal 14 and the back plate 16 also serve as an engine front cover that covers a part of the front side and the upper side of the engine. Further, the front pedestal 15 can be removed when an upper floor plate 23 and the like which will be described later are removed and the air conditioning unit 26 is attached / detached, maintained, and the like. Further, the rear portion of the cab 12 is attached to the back plate 16.

なお、運転席台座13は、後部台座14内に設けられる各種弁装置、電装部品等(いずれも図示せず)を着脱したり、整備したりするために、後部台座14に前部台座15を着脱可能に取付ける構成としている。従って、運転席台座13としては、後部台座14と前部台座15とからなる2部材とせず、両者を一体化した形状の運転席台座として構成することもできる。   The driver seat pedestal 13 is provided with a front pedestal 15 on the rear pedestal 14 in order to attach and detach or maintain various valve devices and electrical components (all not shown) provided in the rear pedestal 14. It is configured to be detachable. Accordingly, the driver seat pedestal 13 can be configured as a driver seat pedestal having a shape in which both are integrated, instead of the two members including the rear pedestal 14 and the front pedestal 15.

17は後部台座14、前部台座15の上側に設けられた運転席で、該運転席17は、オペレータが着座するものである。また、運転席17の左,右両側には、作業装置4を操作するための操作レバー18,18が設けられている。   Reference numeral 17 denotes a driver seat provided on the upper side of the rear pedestal 14 and the front pedestal 15, and the driver seat 17 is seated by an operator. Further, operation levers 18 and 18 for operating the work device 4 are provided on both the left and right sides of the driver seat 17.

19はキャブ12内の右側に位置して後部台座14から前側に延びて設けられたダクトカバーで、該ダクトカバー19には、後述の空調ユニット26から供給される調和空気を異なる方向に吹出す複数個、例えば3個の吹出口19A,19B,19Cが設けられている。   A duct cover 19 is provided on the right side in the cab 12 and extends from the rear pedestal 14 to the front side. The duct cover 19 blows out conditioned air supplied from an air conditioning unit 26 described later in different directions. A plurality of, for example, three air outlets 19A, 19B, 19C are provided.

20は運転席17に着座したオペレータの足元となる後部台座14の前側に設けられた下部床板で、該下部床板20は、図4、図5に示す如く、後述の上部床板23と共に二重床板構造をなし、その下層部分を構成している。また、下部床板20は、左,右方向に長尺なほぼ長方形状の板体として形成され、後端部が後部台座14の前端部にボルト止め、溶接等の手段を用いて固着されている。   Reference numeral 20 denotes a lower floor board provided on the front side of the rear pedestal 14 which is a foot of an operator seated on the driver's seat 17, and the lower floor board 20 is a double floor board together with an upper floor board 23 which will be described later, as shown in FIGS. It has a structure and constitutes the lower layer. Further, the lower floor board 20 is formed as a substantially rectangular plate body elongated in the left and right directions, and the rear end portion is fixed to the front end portion of the rear pedestal 14 by means of bolting, welding or the like. .

一方、下部床板20は、その前端側が旋回フレーム9の前部に取付けられるレバー・ペダル取付板20Aとなり、該レバー・ペダル取付板20Aには、下部走行体2を走行させる走行用レバー・ペダル21と、作業装置4に取付けられるアタッチメント(図示せず)を操作する補助用ペダル22とが取付けられている。さらに、下部床板20には、空調ユニット収容凹部20Bが設けられ、該空調ユニット収容凹部20Bには空調ユニット26が収容されている。   On the other hand, the lower floor plate 20 is a lever / pedal mounting plate 20A attached to the front portion of the revolving frame 9 on the front end side. The lever / pedal mounting plate 20A has a traveling lever / pedal 21 for traveling the lower traveling body 2. And the auxiliary pedal 22 which operates the attachment (not shown) attached to the working apparatus 4 is attached. Further, the lower floor board 20 is provided with an air conditioning unit accommodation recess 20B, and an air conditioning unit 26 is accommodated in the air conditioning unit accommodation recess 20B.

23は下部床板20の上側に設けられた上部床板で、該上部床板23は、下部床板20と共に二重床板構造をなし、その上層部分を構成している。また、上部床板23は、下部床板20の空調ユニット収容凹部20Bに収容された空調ユニット26を覆い隠すことができる。そして、上部床板23は、図6に示す如く、運転席17の前側に設けられる左,右方向に大きな平坦板23Aと、該平坦板23Aの左端部から下側に傾斜した傾斜板23Bと、上部床板23の乗降口12F側となる該傾斜板23Bの左端部に位置して前記平坦面23Aよりも一段低く形成された段差部23Cとにより構成されている。   Reference numeral 23 denotes an upper floor board provided on the upper side of the lower floor board 20. The upper floor board 23 forms a double floor board structure together with the lower floor board 20 and constitutes an upper layer portion thereof. Further, the upper floor plate 23 can cover the air conditioning unit 26 accommodated in the air conditioning unit accommodation recess 20 </ b> B of the lower floor plate 20. Then, as shown in FIG. 6, the upper floor plate 23 includes a large flat plate 23A provided on the front side of the driver's seat 17 in the left and right directions, an inclined plate 23B inclined downward from the left end portion of the flat plate 23A, It is formed of a step portion 23C which is located at the left end portion of the inclined plate 23B on the entrance 12F side of the upper floor plate 23 and is formed one step lower than the flat surface 23A.

ここで、上部床板23の左側に位置する段差部23Cは、図2、図5に示すように、キャブ12の左側面部12Cのうち前側寄り部分に取付けられ、該段差部23Cの端縁部23C1は、この左側面部12Cの前側寄り部分に沿うように前側に向けて右側に傾斜している。また、段差部23Cには、図8に示す如く、後述する滑止めピン25のピン部材25Aが挿着される複数個のピン貫通穴23Dが形成されている。   Here, as shown in FIGS. 2 and 5, the step portion 23C located on the left side of the upper floor plate 23 is attached to the front side portion of the left side surface portion 12C of the cab 12, and the edge portion 23C1 of the step portion 23C. Is inclined rightward toward the front side along the front side portion of the left side surface portion 12C. Further, as shown in FIG. 8, a plurality of pin through holes 23D into which pin members 25A of anti-slip pins 25 described later are inserted are formed in the stepped portion 23C.

そして、各ピン貫通穴23Dは、端縁部23C1に近接する位置で該端縁部23C1に沿って前,後方向に列設された1列目の各ピン貫通穴23Dと、この1列目の各ピン貫通穴23Dの右側に間隔を有し、1列目の各ピン貫通穴23D間に位置するように前,後方向にずらして配設された2列目の各ピン貫通穴23Dとにより構成されている。   Each pin through hole 23D has a first row of pin through holes 23D arranged in the front and rear direction along the edge 23C1 at a position close to the edge 23C1, and the first row. Each pin through-hole 23D in the second row, which is spaced from the right side of each pin through-hole 23D and is shifted forward and rearward so as to be positioned between each pin through-hole 23D in the first row. It is comprised by.

24は下部床板20のレバー・ペダル取付板20A上と上部床板23上とに亘って敷設されたフロアマットで、該フロアマット24は、弾性を有する樹脂材料、ゴム材料等を用いて形成されている。また、フロアマット24の左端部には、図3、図7等に示すように、後述の各滑止めピン25を避ける切欠部24Aが前,後方向に延びて形成されている。さらに、フロアマット24の厚さ寸法は、図5に示す如く、寸法Tに設定されている。   Reference numeral 24 denotes a floor mat laid over the lever / pedal mounting plate 20A of the lower floor board 20 and the upper floor board 23, and the floor mat 24 is formed using an elastic resin material, rubber material or the like. Yes. Further, as shown in FIGS. 3 and 7, etc., a cutout portion 24A that avoids each anti-slip pin 25 described later is formed at the left end portion of the floor mat 24 so as to extend in the front and rear directions. Furthermore, the thickness dimension of the floor mat 24 is set to a dimension T as shown in FIG.

25は上部床板23の段差部23Cに設けられた滑止め手段としての複数本の滑止めピンで、該各滑止めピン25は、段差部23Cに上向きに突出して設けられている。また、各滑止めピン25は、図8等に示す如く、円柱状のピン部材25Aと、該ピン部材25Aの下部に拡径して設けられた円板状の取付板25Bとにより構成されている。そして、各滑止めピン25は、ピン部材25Aを上部床板23のピン貫通穴23Dに下側から挿入して上側に突出させ、該ピン部材25Aの下部に設けられた取付板25Bの上面を段差部23Cの下面に当接し、溶接手段を用いて両者を固着することにより、上部床板23の段差部23Cからピン部材25Aを上側に突出させている。   Reference numeral 25 denotes a plurality of anti-slip pins as anti-slip means provided on the step part 23C of the upper floor plate 23. Each anti-slip pin 25 is provided to protrude upward from the step part 23C. Further, as shown in FIG. 8 and the like, each of the anti-slip pins 25 includes a cylindrical pin member 25A and a disk-shaped mounting plate 25B provided with a diameter expanded at a lower portion of the pin member 25A. Yes. And each anti-slip | pin 25 inserts the pin member 25A in the pin through-hole 23D of the upper floor board 23 from the lower side, makes it protrude upward, and makes the upper surface of the attachment plate 25B provided in the lower part of this pin member 25A a level | step difference The pin member 25A protrudes upward from the stepped portion 23C of the upper floor plate 23 by contacting the lower surface of the portion 23C and fixing them using welding means.

ここで、滑止め手段を構成する複数本の滑止めピン25は、上部旋回体3の外形に対応したキャブ12の左側面部12Cに沿うようにほぼ前,後方向に列設されている。詳しくは、上部床板23の各ピン貫通穴23Dと同様に、端縁部23C1に近接し、該端縁部23C1に沿って前,後方向に並べて配置された1列目の各滑止めピン25と、この1列目の各滑止めピン25の右側に間隔を有し、1列目の各滑止めピン25間に位置するように前,後方向にずらして並べて配置された2列目の各滑止めピン25とにより構成されている。   Here, the plurality of anti-slip pins 25 constituting the anti-slip means are arranged in a substantially forward and rearward direction along the left side surface portion 12C of the cab 12 corresponding to the outer shape of the upper swing body 3. Specifically, like the pin through holes 23D of the upper floor plate 23, the anti-slip pins 25 in the first row are arranged close to the edge portion 23C1 and arranged in the front and rear directions along the edge portion 23C1. And the second row of the first row, which has a space on the right side of each of the anti-slip pins 25 and that is arranged so as to be shifted forward and backward so as to be positioned between the anti-slip pins 25 of the first row. Each anti-slip pin 25 is constituted.

このように、各滑止めピン25は、乗降するときにキャブ12の乗降口12Fを通る方向とほぼ直交する前,後方向に列設して設けることにより、乗降口12Fのほぼ全幅となる前,後方向の広い範囲で足の滑りを防止することができる。また、1列目、2列目の各滑止めピン25は、1列目の各滑止めピン25間に2列目の各滑止めピン25が位置するように前,後方向にずらして配設しているから、少ない本数で効率よく滑りを止めることができる。しかも、滑止めピン25は、隣の滑止めピン25と十分な間隔をもって配設しているから、滑止めピン25の周囲には多くの隙間を形成することができ、該各滑止めピン25の周囲に泥が堆積したとしても簡単に除去することができる。   As described above, the anti-slip pins 25 are arranged in a row before and after being substantially orthogonal to the direction passing through the entrance / exit 12F of the cab 12 when getting on / off. , It is possible to prevent foot slip in a wide range in the rear direction. In addition, the anti-slip pins 25 in the first row and the second row are shifted forward and backward so that the anti-slip pins 25 in the second row are positioned between the anti-slip pins 25 in the first row. Because it is installed, it is possible to stop the slip efficiently with a small number. In addition, since the anti-slip pin 25 is arranged with a sufficient distance from the adjacent anti-spin pin 25, a large number of gaps can be formed around the anti-slip pin 25. Even if mud accumulates around the surface, it can be easily removed.

さらに、滑止めピン25は、そのピン部材25Aが上部床板23の上面から突出した突出寸法を、フロアマット24の厚さ寸法Tと同等または僅かに大きな寸法Hに設定している。これにより、各滑止めピン25は、上部床板23上にフロアマット24を敷設した場合でも、各滑止めピン25のピン部材25A先端を靴底に引掛けることができる。   Further, the non-slip pin 25 has a projecting dimension in which the pin member 25 </ b> A projects from the upper surface of the upper floor plate 23 set to a dimension H that is equal to or slightly larger than the thickness dimension T of the floor mat 24. Thereby, even when each non-slip pin 25 lays the floor mat 24 on the upper floor plate 23, the tip of the pin member 25A of each non-slip pin 25 can be hooked on the shoe sole.

なお、26は下部床板20の空調ユニット収容凹部20B内に設けられた空調ユニットで、該空調ユニット26は、冷風、温風からなる調和空気をダクトカバー19の各吹出口19A,19B,19Cからキャブ12内に供給するものである。   Reference numeral 26 denotes an air conditioning unit provided in the air conditioning unit housing recess 20B of the lower floor board 20, and the air conditioning unit 26 sends conditioned air composed of cold air and hot air from the air outlets 19A, 19B, 19C of the duct cover 19. The cab 12 is supplied.

本実施の形態による油圧ショベル1は上述の如き構成を有するもので、次に、その作動について説明する。   The hydraulic excavator 1 according to the present embodiment has the above-described configuration. Next, the operation thereof will be described.

まず、運転席17に乗り込む場合、オペレータは、下部走行体2の履帯8上に乗り、キャブ12のドア12Gを開き、乗降口12Fの位置で上部床板23の段差部23Cに足を掛けてキャブ12内に乗り込む。このときに、上部床板23の段差部23Cには、滑止め用の複数本の滑止めピン25が取付けられているから、オペレータは、足を滑らすことなく運転席17に乗り込むことができる。   First, when getting into the driver's seat 17, the operator gets on the crawler belt 8 of the lower traveling body 2, opens the door 12G of the cab 12, and puts his foot on the step 23C of the upper floor board 23 at the position of the entrance 12F. Get inside 12 At this time, since a plurality of anti-slip pins 25 are attached to the step portion 23C of the upper floor plate 23, the operator can get into the driver's seat 17 without sliding his / her foot.

そして、運転席17に着座したオペレータは、走行用レバー・ペダル21を操作することにより、下部走行体2を走行させる。また、操作レバー18を操作することにより、作業装置4等を動作させ、土砂の掘削作業等を行うことができる。   Then, the operator seated in the driver's seat 17 operates the lower traveling body 2 by operating the traveling lever / pedal 21. Further, by operating the operation lever 18, the work device 4 and the like can be operated to perform earth and sand excavation work and the like.

また、運転席17から降りる場合には、オペレータは、各滑止めピン25に足を掛けることにより、足を滑らすことなく乗降口12Fから下部走行体2の履帯8を介して地面に降りることができる。   Further, when getting off the driver's seat 17, the operator can get down to the ground from the entrance 12 </ b> F via the crawler belt 8 of the lower traveling body 2 without slipping his / her foot by putting his / her foot on each anti-slip pin 25. it can.

かくして、本実施の形態によれば、上部床板23の段差部23Cに滑止め手段を構成する複数本の滑止めピン25を上向きに突出して取付けているから、各滑止めピン25は、泥に埋もれ難く、長期間に亘り靴底の滑りを防止することができ、信頼性を向上することができる。また、各滑止めピン25を形成するピン部材25Aの周囲には、多くの隙間を形成することにより、該各ピン部材25Aの周囲に泥が堆積したとしても簡単に除去することができるから、滑止め機能を容易に復元することができ、また清掃作業を簡略化することができる。   Thus, according to the present embodiment, the plurality of anti-slip pins 25 constituting the anti-slip means are attached to the stepped portion 23C of the upper floor plate 23 so as to protrude upward. It is hard to be buried, can prevent slipping of the shoe sole over a long period of time, and can improve reliability. In addition, by forming a large number of gaps around the pin member 25A that forms each anti-slip pin 25, even if mud accumulates around each pin member 25A, it can be easily removed. The anti-slip function can be easily restored, and the cleaning operation can be simplified.

また、別個に設けられた各滑止めピン25を、上部床板23に取付ける構成としているから、滑止めピン25の長さ寸法、形状等を変えることにより、油圧ショベル1を使用する現場、油圧ショベル1の機種等に応じ、最適な滑止め効果を得ることができる。また、滑止めピン25は、例えばプレス加工等を用いて形成したものに比較して安価に製造することができ、製造コストを低減することができる。   Further, since each separately provided anti-slip pin 25 is configured to be attached to the upper floor plate 23, by changing the length dimension, shape, etc. of the anti-slip pin 25, the site where the hydraulic excavator 1 is used, the hydraulic excavator An optimal anti-slip effect can be obtained according to the type of model 1 or the like. Further, the non-slip pin 25 can be manufactured at a lower cost than that formed using, for example, press working or the like, and the manufacturing cost can be reduced.

また、下部床板20には、空調ユニット収容凹部20B内に空調ユニット26を収容することができ、上部床板23は空調ユニット26を覆い隠すことができる。これにより、各床板20,23間のスペースを有効的に利用することができる。また、上部床板23には、キャブ12の乗降口12F側に位置して一段低い段差部23Cを設けているから、乗降するときに段差部23Cに足を容易に掛けることができ、安全性、信頼性を向上することができる。   Further, the lower floor board 20 can accommodate the air conditioning unit 26 in the air conditioning unit accommodation recess 20 </ b> B, and the upper floor board 23 can cover the air conditioning unit 26. Thereby, the space between each floor boards 20 and 23 can be used effectively. Further, since the upper floor plate 23 is provided with a step part 23C that is one step lower and located on the entrance 12F side of the cab 12, it is possible to easily put a foot on the step part 23C when getting on and off, Reliability can be improved.

また、各滑止めピン25は、二重床板構造の上層部分を構成する上部床板23に取付けているから、上部床板23を取外した状態で各滑止めピン25を容易に取付けることができ、組立作業性を向上することができる。   Further, since each of the anti-slip pins 25 is attached to the upper floor plate 23 constituting the upper layer portion of the double floor plate structure, each of the anti-slip pins 25 can be easily attached in a state where the upper floor plate 23 is removed. Workability can be improved.

また、各滑止めピン25は、前,後方向に並べて配置しているから、キャブ12の乗降口12Fのほぼ全幅となる前,後方向の広い範囲で足の滑りを防止することができ、信頼性を向上することができる。また、各滑止めピン25は、1列目と2列目とで前,後方向にずらして配設しているから、少ない本数で効率よく滑りを止めることができ、これによっても各滑止めピン25間に十分な隙間を形成することができる。   In addition, since the anti-slip pins 25 are arranged side by side in the front and rear directions, it is possible to prevent slipping of the foot in a wide range in the front and rear directions that are almost the full width of the entrance 12F of the cab 12, Reliability can be improved. In addition, since each anti-slip pin 25 is arranged so as to be shifted forward and backward in the first row and the second row, it is possible to efficiently stop the slip with a small number, and this also prevents each anti-slip A sufficient gap can be formed between the pins 25.

一方、滑止めピン25は、上部床板23上に突出するピン部材25Aの突出寸法Hを、フロアマット24の厚さ寸法Tと同等または僅かに大きく設定しているから、上部床板23上にフロアマット24を敷設した場合でも、靴底を各滑止めピン25に引掛けて乗降することができる。しかも、ピン部材25Aの突出寸法Hを調整することにより、異なる滑止め効果を容易に得ることができる。   On the other hand, the non-slip pin 25 has a protruding dimension H of the pin member 25A protruding on the upper floor plate 23 set equal to or slightly larger than the thickness dimension T of the floor mat 24. Even when the mat 24 is laid, it is possible to get on and off the shoe by hooking the shoe sole on each anti-slip pin 25. In addition, by adjusting the protruding dimension H of the pin member 25A, different anti-slip effects can be easily obtained.

さらに、滑止めピン25は、上部床板23のピン貫通穴23Dにピン部材25Aを下側から挿通し、取付板25Bを上部床板23の下面に溶接手段を用いて固着することにより、該滑止めピン25を容易に設けることができ、生産性の向上、製造コストの低減等を図ることができる。   Further, the non-slip pin 25 is inserted into the pin through hole 23D of the upper floor plate 23 from below, and the mounting plate 25B is fixed to the lower surface of the upper floor plate 23 by welding means, thereby preventing the non-slip pin 25. The pins 25 can be easily provided, and the productivity can be improved and the manufacturing cost can be reduced.

なお、実施の形態では、滑止めピン25は、上部床板23のピン貫通穴23Dにピン部材25Aを下側から挿通し、取付板25Bを上部床板23の下面に溶接手段を用いて固着することにより、上部床板23に対して取付ける構成とした場合を例に挙げて説明した。しかし、本発明はこれに限らず、例えば上部床板23のピン貫通穴23Dに円柱状の滑止めピンを圧入、螺着等の手段で取付ける構成としてもよい。また、上部床板23の上面に円柱状の滑止めピンを溶接して取付ける構成としてもよい。   In the embodiment, the non-slip pin 25 is inserted into the pin through hole 23D of the upper floor plate 23 from the lower side, and the mounting plate 25B is fixed to the lower surface of the upper floor plate 23 using welding means. Thus, the case where it is configured to be attached to the upper floor plate 23 has been described as an example. However, the present invention is not limited to this, and for example, a cylindrical slip pin may be attached to the pin through hole 23D of the upper floor plate 23 by means such as press-fitting and screwing. Moreover, it is good also as a structure which welds and attaches a cylindrical non-slip pin to the upper surface of the upper floor board 23. FIG.

また、実施の形態では、下部床板20と上部床板23とにより二重床板構造とし、上部床板23に滑止めピン25を取付けた場合を例に挙げて説明した。しかし、本発明はこれに限るものではなく、例えば床板を1枚の部材として形成し、この1枚の床板に滑止めピンを設ける構成としてもよい。   In the embodiment, the case where a double floor board structure is formed by the lower floor board 20 and the upper floor board 23 and the non-slip pins 25 are attached to the upper floor board 23 has been described as an example. However, the present invention is not limited to this. For example, the floor board may be formed as a single member, and a non-slip pin may be provided on the single floor board.

また、実施の形態では、複数本の滑止めピン25は、左,右方向に2列設けるものとして説明した。しかし、本発明はこれに限らず、各滑止めピン25を1列または3列以上設ける構成としてもよい。また、各滑止めピン25は、ランダムに配置する構成としてもよい。   Further, in the embodiment, it has been described that the plurality of anti-slip pins 25 are provided in two rows in the left and right directions. However, the present invention is not limited to this, and each anti-slip pin 25 may be provided in one row or three or more rows. Further, the anti-slip pins 25 may be arranged at random.

また、実施の形態では、前面部12A、後面部12B、左側面部12C、右側面部12D、天井面部12Eにより箱型状に形成され、左側面部12Cに乗降口12Fが形成されたキャブ12を用いたキャブ仕様の油圧ショベル1を例に挙げて説明した。しかし、本発明はこれに限らず、例えば図9に示す変形例による油圧ショベル31のように、運転席17の上方を覆うキャノピ32を備えたものに適用してもよい。このキャノピ仕様の油圧ショベル31では、運転席17と走行用レバー・ペダル21との間で左側の空間が乗降口33となる。また、キャノピ仕様の油圧ショベル31では、図10に示すように、下部床板20の空調ユニット収容凹部20Bから空調ユニット26を取外し、該空調ユニット収容凹部20Bを覆うように蓋体34を取付ける構成としている。   In the embodiment, the cab 12 is used which is formed in a box shape by the front surface portion 12A, the rear surface portion 12B, the left side surface portion 12C, the right side surface portion 12D, and the ceiling surface portion 12E, and the entrance 12F is formed on the left side surface portion 12C. The cab specification hydraulic excavator 1 has been described as an example. However, the present invention is not limited to this. For example, the present invention may be applied to a hydraulic excavator 31 according to the modification shown in FIG. In the canopy-type hydraulic excavator 31, the space on the left side between the driver's seat 17 and the traveling lever / pedal 21 serves as the entrance / exit 33. In the canopy-type hydraulic excavator 31, as shown in FIG. 10, the air conditioning unit 26 is removed from the air conditioning unit accommodation recess 20B of the lower floor plate 20, and the lid 34 is attached so as to cover the air conditioning unit accommodation recess 20B. Yes.

さらに、実施の形態では、建設機械として油圧ショベル1を例示した。しかし、本発明はこれに限るものではなく、例えば油圧クレーン、ホイールローダ、ジラフ等の他の建設機械にも広く適用することができる。   Furthermore, in the embodiment, the hydraulic excavator 1 is exemplified as the construction machine. However, the present invention is not limited to this, and can be widely applied to other construction machines such as hydraulic cranes, wheel loaders, and giraffes.

本発明の実施の形態に係る油圧ショベルを示す正面図である。1 is a front view showing a hydraulic excavator according to an embodiment of the present invention. キャブ、運転席台座、運転席、床板、滑止めピン等を示す要部拡大の外観斜視図である。It is an external appearance perspective view of the principal part expansion which shows a cab, a driver's seat base, a driver's seat, a floor board, a non-slip pin, etc. 運転席台座、運転席、床板、滑止めピン等をキャブを取外した状態で示す外観斜視図である。It is an external appearance perspective view which shows a driver's seat base, a driver's seat, a floor board, a non-slip pin, etc. in the state where a cab was removed. 後部台座、下部床板から前部台座、上部床板、フロアマット等を分解した状態で示す分解斜視図である。It is a disassembled perspective view in the state which decomposed | disassembled the front pedestal, the upper floor board, the floor mat, etc. from the rear pedestal and the lower floor board. 図2中の矢示V−V方向からみた下部床板、上部床板、フロアマット、滑止めピン等の拡大断面図である。It is an expanded sectional view of a lower floor board, an upper floor board, a floor mat, a non-slip pin, etc. seen from the arrow V-V direction in FIG. 上部床板と滑止めピンを拡大して示す外観斜視図である。It is an external appearance perspective view which expands and shows an upper floor board and a non-slip | pin. フロアマットを単体で示す外観斜視図である。It is an external appearance perspective view which shows a floor mat alone. 一部の滑止めピンを上部床板と分解して示す要部拡大の外観斜視図である。It is an external appearance perspective view of the principal part expansion which disassembles and shows a part of non-slip pins with an upper floor board. 本発明の変形例による油圧ショベルを示す正面図である。It is a front view which shows the hydraulic shovel by the modification of this invention. 後部台座、下部床板から前部台座、上部床板、フロアマット等を分解し、下部床板に蓋体を取付けた状態を示す分解斜視図である。It is a disassembled perspective view which shows the state which decomposed | disassembled the front base, the upper floor board, the floor mat, etc. from the rear base and the lower floor board, and attached the cover body to the lower floor board.

符号の説明Explanation of symbols

1,31 油圧ショベル(建設機械)
2 下部走行体(車体)
3 上部旋回体(車体)
4 作業装置
12 キャブ
12F,33 乗降口
17 運転席
20 下部床板
20A レバー・ペダル取付板
20B 空調ユニット収容凹部
23 上部床板
23A 平坦板
23B 傾斜板
23C 段差部
23D ピン貫通穴
24 フロアマット
25 滑止めピン(滑止め手段)
25A ピン部材
25B 取付板
26 空調ユニット
32 キャノピ
T フロアマットの厚さ寸法
H ピン部材の突出寸法
1,31 Hydraulic excavator (Construction machinery)
2 Lower traveling body (car body)
3 Upper swing body (car body)
4 Working device 12 Cab 12F, 33 Entrance / exit 17 Driver's seat 20 Lower floor plate 20A Lever / pedal mounting plate 20B Air conditioning unit accommodation recess 23 Upper floor plate 23A Flat plate 23B Inclined plate 23C Stepped portion 23D Pin through hole 24 Floor mat 25 Non-slip pin (Non-slip means)
25A Pin member 25B Mounting plate 26 Air conditioning unit 32 Canopy T Floor mat thickness dimension H Pin member protrusion dimension

Claims (4)

自走可能な下部走行体と、該下部走行体上に旋回可能に搭載され該下部走行体と共に車体を構成する上部旋回体と、該上部旋回体の前側に俯仰動可能に設けられ土砂の掘削作業を行う作業装置と、前記上部旋回体に設けられオペレータが着座する運転席と、該運転席の前側に位置してオペレータの足元に設けられた床板と、オペレータが乗り降りする該床板の乗降口側に設けられ該床板の乗降口側に足を掛けたときの滑りを止める滑止め手段とを備えてなる建設機械において、
前記床板は、空調ユニットを収容する空調ユニット収容凹部が設けられた下部床板と、該下部床板の上側に設けられ前記空調ユニット収容凹部を覆うと共に前記乗降口側が一段低い段差部になった上部床板とにより二重床板構造とし、
前記滑止め手段は、前記上部床板の段差部に取付けられ前記床板の乗降口側に上向きに突出する複数本の滑止めピンによって構成したことを特徴とする建設機械。
A self-propelled lower traveling body, an upper revolving body that is mounted on the lower traveling body so as to be capable of swiveling and constitutes a vehicle body together with the lower traveling body , and excavation of earth and sand provided on the front side of the upper revolving body so as to move up and down A working device for performing work, a driver seat provided on the upper revolving body on which an operator is seated, a floor board provided on the operator's feet in front of the driver's seat, and an entrance for the floor board on which the operator gets on and off In a construction machine provided with a non-slip means for stopping slipping when the foot is placed on the entrance / exit side of the floor board provided on the side,
The floor plate includes a lower floor plate provided with an air conditioning unit housing recess for housing an air conditioning unit, and an upper floor plate provided on the upper side of the lower floor plate and covering the air conditioning unit housing recess and having a stepped portion that is one step lower on the entrance / exit side. With a double floor board structure,
The anti-slip means, construction machines, characterized by being configured by a plurality of anti-slip pin projecting upwardly on entrance side of the floor plate attached to the stepped portion of the upper floor.
前記各滑止めピンは、前記車体の側面に沿うように前,後方向に並べて配置する構成としてなる請求項に記載の建設機械。 The construction machine according to claim 1 , wherein each of the non-slip pins is arranged side by side in the front and rear directions along the side surface of the vehicle body. 前記各滑止めピンは、前記床板上に敷設されたフロアマットの厚さ寸法と同等または僅かに大きな突出寸法をもって形成する構成としてなる請求項1または2に記載の建設機械。 The construction machine according to claim 1 or 2 , wherein each of the non-slip pins is formed to have a protruding dimension that is equal to or slightly larger than a thickness dimension of a floor mat laid on the floor board. 前記床板の乗降口側には複数個のピン貫通穴を設け、前記各滑止めピンは、前記床板のピン貫通穴を貫通して上側に突出するピン部材と、該ピン部材の下部に拡径して設けられ前記床板の下面に溶接手段を用いて取付けられる取付板とにより構成してなる請求項1,2または3に記載の建設機械。 A plurality of pin through holes are provided on the entrance / exit side of the floor board, and each of the anti-slip pins penetrates through the pin through hole of the floor board and protrudes upward, and the diameter of the lower part of the pin member is increased. The construction machine according to claim 1, 2 or 3 , wherein the construction machine is configured by a mounting plate that is provided on the lower surface of the floor plate and is attached using welding means.
JP2004035372A 2004-02-12 2004-02-12 Construction machinery Expired - Fee Related JP4313220B2 (en)

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JP4994120B2 (en) * 2007-06-06 2012-08-08 株式会社小松製作所 Cab floor
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