JP2009120046A - Floor structure of vehicle - Google Patents

Floor structure of vehicle Download PDF

Info

Publication number
JP2009120046A
JP2009120046A JP2007296629A JP2007296629A JP2009120046A JP 2009120046 A JP2009120046 A JP 2009120046A JP 2007296629 A JP2007296629 A JP 2007296629A JP 2007296629 A JP2007296629 A JP 2007296629A JP 2009120046 A JP2009120046 A JP 2009120046A
Authority
JP
Japan
Prior art keywords
floor
valve
dust
pressure
bottom plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2007296629A
Other languages
Japanese (ja)
Inventor
Eiji Akabane
英司 赤羽根
Kazue Tazaki
和重 田▲崎▼
Masayoshi Nakajima
正義 中島
Hiroaki Tada
宏明 多田
Akiyasu Yamada
晃廉 山田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caterpillar Japan Ltd
Original Assignee
Caterpillar Japan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caterpillar Japan Ltd filed Critical Caterpillar Japan Ltd
Priority to JP2007296629A priority Critical patent/JP2009120046A/en
Publication of JP2009120046A publication Critical patent/JP2009120046A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Component Parts Of Construction Machinery (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floor structure of a vehicle capable of preventing abnormal pressure rise while keeping airtightness and capable of automatically discharging inside dust, etc. outside. <P>SOLUTION: An elliptically drilled floor opening part 22 is provided on a floor plate 21 on which a driver's seat in which an operator of a hydraulic shovel is seated is set, and a dust valve 23 as a valve system is provided on this floor opening part 22. This dust valve 23 is formed of a flexible material which is in a closed state when pressure in the inside of a driver's cab is lower than constant pressure and free to deform in an open state when it exceeds the constant pressure. The dust valve 23 is a kind of a check valve integrally forming a valve body 24 formed in a V letter shape cross-section, a regular shape discharge receiving port part 25 provided on an upper part of this valve body 24, a discharge outlet slit part 26 provided free to open and deform on a lower part of the valve body 24 and a recessed shape cross-section mounting flange part 27 integrally provided on the outside of the upper part of the valve body 24 of rubber or flexible synthetic resin. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、排出物取出用の弁装置を備えた車両の床構造に関する。   The present invention relates to a vehicle floor structure provided with a valve device for taking out discharged matter.

建設機械は不整地で稼働するため、オペレータの出入りの度に泥・砂などが運転室内に持ち込まれる。また、作業環境そのものも塵埃の多い場合が多く、運転室内は非常に汚れ易い。   Since construction machines operate on rough terrain, mud, sand, etc. are brought into the cab each time an operator enters or exits. Also, the working environment itself is often dusty and the driver's cab is very dirty.

そのため、図７に示されるように、建設機械のオペレータが座る運転席１が設置された運転室内の床２には、水洗いができるようなマット３が設置されている。   Therefore, as shown in FIG. 7, a mat 3 that can be washed with water is installed on the floor 2 in the driver's cabin where the driver's seat 1 on which the operator of the construction machine sits is installed.

このマット３は、通常、運転室の前半分に設置されているに過ぎず、それ以外の場所では、前半分に設置されたマット３の後壁部４が邪魔になり、逆に、運転室の後半分に泥・砂などが溜まりやすい。   The mat 3 is usually only installed in the front half of the cab, and in other places, the rear wall 4 of the mat 3 installed in the front half becomes an obstacle, and conversely, Mud and sand are likely to collect in the rear half.

また、運転席１の下側または後方には、通常、空調装置の本体ユニットすなわちエアコンユニット５が搭載されており、このエアコンユニット５の側面には、運転室内空気を循環させるために内気フィルタを通して運転室内の空気を吸い込む内気取入口６があり、この内気取入口６の回りに溜まった塵埃を吸い込んで運転室内に撒き散らすことになる。内気フィルタの目詰まりも起し易い。   Further, a main unit of the air conditioner, that is, an air conditioner unit 5 is usually mounted below or behind the driver's seat 1, and an air filter is passed through the side surface of the air conditioner unit 5 in order to circulate the driver's cabin air. There is an inside air intake 6 for sucking in air in the cab, and dust collected around the inside air inlet 6 is sucked and scattered in the cab. Clogging of the inside air filter is likely to occur.

これに対して、運転室内の清掃の容易化を図ったものがある。これは、少なくともフロアの前部に排出口を設け、この排出口より土砂や塵埃などを外部へ排出することで清掃性を改善しようとするものである（例えば、特許文献１参照）。   On the other hand, there is one that facilitates cleaning of the cab. This is intended to improve cleaning performance by providing a discharge port at least at the front part of the floor and discharging earth and sand or the like from the discharge port to the outside (see, for example, Patent Document 1).

また、フロアプレートのカバーに、泥水や埃などを外部へ排出する小さな排出孔のほかに、運転室内の気圧調整用の逃がし弁を設けることで、キャブのドアを勢いよく閉めてキャブ内の気圧が一時的に上昇したような場合でも、この逃がし弁から上昇した気圧を外部に逃がすようにしたものがある（例えば、特許文献２参照）。
特開平１０−２４５８７１号公報（第４頁、図５、７） 特開２００３−２１１９４２号公報（第３頁、図２、５、６） In addition to the small exhaust hole that discharges muddy water and dust to the outside, the floor plate cover is provided with a relief valve for adjusting the air pressure in the cab so that the cab door can be closed tightly and the air pressure inside the cab Even when the pressure rises temporarily, there is one in which the atmospheric pressure rising from the relief valve is allowed to escape to the outside (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 10-245871 (page 4, FIGS. 5 and 7) Japanese Patent Laying-Open No. 2003-211942 (page 3, FIGS. 2, 5, 6)

従来の運転室の前半分にマット３を敷くものは、後半分の清掃が容易でなく、逆に泥・砂が溜まってしまう。さらに、エアコンユニット５の内気取入口６から塵埃を吸込みやすい。また、エアコンユニット５の内気フィルタも目詰まりしやすい問題がある。   In the case where the mat 3 is laid in the front half of the conventional cab, the latter half is not easy to clean, and mud and sand accumulate on the contrary. Furthermore, it is easy to suck dust from the inside air intake 6 of the air conditioner unit 5. Further, there is a problem that the inside air filter of the air conditioner unit 5 is easily clogged.

また、特許文献１に記載されたものは、フロアに排出口が開いているため、運転室内の気密性が保てず、逆に外部の塵埃が運転室内に侵入することになる。また、外部騒音も、排出口から入り込み、遮音性の劣る運転室になってしまう問題がある。   Moreover, since the thing described in patent document 1 has the discharge opening in a floor, the airtightness in a driver's cab cannot be maintained, and external dust will invade into a driver's cab on the contrary. In addition, there is a problem that external noise also enters from the discharge port, resulting in a cab with poor sound insulation.

特許文献２に記載されたものは、フロアプレートのカバーに、泥水などの排出孔だけでなく、気圧の逃がし弁も別個に設置する必要があり、構造が複雑で高価なカバーを設置せざるを得ない問題がある。   The one described in Patent Document 2 requires that not only a discharge hole for muddy water but also a pressure relief valve be separately installed on the cover of the floor plate, and an expensive cover having a complicated structure must be installed. There is a problem that cannot be obtained.

本発明は、このような点に鑑みなされたもので、気密性を有しながら、異常な昇圧は防止でき、かつ内部の塵埃などは自動的に外部へ排出できる車両の床構造を提供することを目的とする。   The present invention has been made in view of the above points, and provides a vehicle floor structure that can prevent abnormal pressure increase while having airtightness and can automatically discharge internal dust to the outside. With the goal.

請求項１に記載された発明は、ドアを有する車両の室に設けられた床部材と、この床部材に設けられた床開口部と、この床開口部に設けられ、室内の圧が一定圧以下のときは閉じ状態にあり一定圧を超えるときは開き状態に変形可能な可撓性材料により成形された弁装置とを具備した車両の床構造である。   According to the first aspect of the present invention, there is provided a floor member provided in a vehicle room having a door, a floor opening provided in the floor member, and a floor opening provided in the floor opening. The vehicle floor structure includes a valve device that is formed of a flexible material that is closed when it is in the following state and is deformed into an open state when a certain pressure is exceeded.

請求項２に記載された発明は、請求項１記載の車両の床構造における弁装置が、Ｖ字形断面に形成された弁本体と、弁本体の上部に設けられた定形の排出物受入口部と、弁本体の下部に開口変形可能に設けられた排出物出口スリット部とを具備したものである。   According to a second aspect of the present invention, there is provided the valve device in the vehicle floor structure according to the first aspect, wherein the valve main body is formed in a V-shaped cross section, and the fixed discharge receiving portion provided on the upper portion of the valve main body. And a discharge outlet slit portion provided in the lower portion of the valve main body so as to be openable and deformable.

請求項３に記載された発明は、請求項１または２記載の車両の床構造において、床部材上に設置された、室内の圧を外部の圧より高く維持することが可能な空調装置を備え、床開口部および弁装置は、この空調装置の内気循環用の内気取入口の前側に設置されたものである。   According to a third aspect of the present invention, the vehicle floor structure according to the first or second aspect includes an air conditioner installed on the floor member and capable of maintaining the indoor pressure higher than the external pressure. The floor opening and the valve device are installed on the front side of the inside air inlet for the inside air circulation of the air conditioner.

請求項４に記載された発明は、請求項１乃至３のいずれか記載の車両の床構造において、弁本体の上部外側に一体に設けられ、床部材に面一に嵌着された凹形断面の取付フランジ部を具備したものである。   According to a fourth aspect of the present invention, there is provided a vehicle floor structure according to any one of the first to third aspects, wherein the concave cross section is integrally provided on the upper outer side of the valve body and is flush with the floor member. The mounting flange portion is provided.

請求項５に記載された発明は、請求項１乃至４のいずれか記載の車両の床構造において、床部材の下側に設けられた底板部材と、この底板部材の弁装置下側に設けられた底板開口部と、床部材の弁装置から底板部材の底板開口部にわたって設けられた排出物導出管とを具備したものである。   According to a fifth aspect of the present invention, in the vehicle floor structure according to any one of the first to fourth aspects, the bottom plate member provided below the floor member and the bottom plate member provided below the valve device. A bottom plate opening, and a discharge outlet pipe provided from the floor member valve device to the bottom plate opening of the bottom plate member.

請求項６に記載された発明は、請求項５記載の車両の床構造において、排出物導出管を介して、弁装置が複数段に設けられたものである。   According to a sixth aspect of the present invention, in the vehicle floor structure according to the fifth aspect, the valve devices are provided in a plurality of stages through the exhaust discharge pipe.

請求項１に記載された発明によれば、床開口部に設けられた弁装置は、室内の圧が一定圧以下のときは閉じ状態にあり一定圧を超えるときは開き状態に変形可能な可撓性材料により成形されたので、室内の圧が一定圧以下のときは、閉じ状態により室内の気密性を保持して、塵埃や外部騒音の室内への侵入を防止でき、かつ、ドアを閉めたときの室内が一定圧を超えたときは、開き状態への変形により、室内の異常な昇圧を防止できるとともに、このとき外部へ強制的に排出される内気と共に室内に溜まっている塵埃などを外部へ自動的に排出できる。   According to the first aspect of the present invention, the valve device provided in the floor opening can be deformed into a closed state when the pressure in the room is equal to or lower than a certain pressure, and to an open state when the pressure exceeds a certain pressure. Because it is molded from a flexible material, when the room pressure is below a certain level, it can be kept airtight in the closed state, preventing dust and external noise from entering the room, and closing the door. When the room pressure exceeds a certain pressure, the deformation to the open state can prevent abnormal pressure increase in the room, and at this time, the dust collected in the room together with the inside air forced out to the outside It can be automatically discharged to the outside.

請求項２に記載された発明によれば、Ｖ字形断面の弁本体の上部に定形の排出物受入口部を設け、下部に排出物出口スリット部を開口変形可能に設けたので、内圧保持機能と逆止機能とを有する弁装置をシンプルな構造で安価に一体成形できるとともに、室内の圧が一定圧以下のときは、室の床部材上で移動する塵埃などを排出物受入口部から弁本体内に落し込んで、床部材上に散乱することを防止できるとともに、室内が一定圧を超えたときは、弁本体内に溜め込まれた塵埃などを効率よく外部へ排出できる。   According to the second aspect of the present invention, the fixed discharge receiving portion is provided at the upper portion of the V-shaped cross-section valve body, and the discharge outlet slit portion is provided at the lower portion so as to be openable. And a non-return valve device can be integrally formed at a low cost with a simple structure, and when the indoor pressure is below a certain level, dust moving on the floor member of the chamber can be removed from the exhaust outlet. It can be prevented from falling into the main body and being scattered on the floor member, and when the interior of the room exceeds a certain pressure, dust and the like stored in the valve body can be efficiently discharged to the outside.

請求項３に記載された発明によれば、室内の圧を外部の圧より高く維持することが可能な空調装置の機能を弁装置により維持できるとともに、床開口部および弁装置は、この空調装置の内気循環用の内気取入口の前側に設置されたので、空調装置の内気取入口に吸引された室内の塵埃を、内気取入口の前側に設置された床開口部から弁装置内に自動的に集め、高圧時に外部へ排出する自動集塵・排出システムを構成できる。   According to the invention described in claim 3, the function of the air conditioner capable of maintaining the indoor pressure higher than the external pressure can be maintained by the valve device, and the floor opening and the valve device are provided with the air conditioner. Because it is installed on the front side of the indoor air intake for indoor air circulation, the indoor dust sucked into the air intake of the air conditioner automatically enters the valve device from the floor opening installed on the front side of the indoor air intake. It is possible to configure an automatic dust collection and discharge system that collects the wastewater and discharges it to the outside at high pressure.

請求項４に記載された発明によれば、弁本体の上部外側に一体に設けられた凹形断面の取付フランジ部を床部材に嵌着したので、弁装置の取り付けを容易にできるとともに、取付フランジ部を床部材に面一に嵌着したので、床部材上の塵埃を弁本体内に円滑に落し込むことができる。   According to the invention described in claim 4, since the mounting flange portion having a concave cross section provided integrally with the upper outer side of the valve body is fitted to the floor member, the valve device can be easily mounted and mounted. Since the flange portion is flush with the floor member, dust on the floor member can be smoothly dropped into the valve body.

請求項５に記載された発明によれば、床部材の下側に底板部材が設けられている場合でも、床部材の弁装置から底板部材の底板開口部にわたって設けられた排出物導出管により、室内の塵埃、排水などを直接かつ確実に車外へ排出できるとともに、排出物導出管により底板部材の底板開口部を塞ぐので、床部材と底板部材との間に配置された機器、配線または配管に、床部材上からの排出物および底板開口部からの外部侵入物が付着して汚れることを防止できる。   According to the invention described in claim 5, even when the bottom plate member is provided on the lower side of the floor member, by the discharge outlet pipe provided from the floor member valve device to the bottom plate opening of the bottom plate member, Dust and drainage in the room can be directly and reliably discharged outside the vehicle, and the bottom plate opening of the bottom plate member is closed by the discharge outlet pipe, so that the equipment, wiring, or piping arranged between the floor member and the bottom plate member can be used. Further, it is possible to prevent the discharge from the floor member and the external intrusion from the opening of the bottom plate from adhering and becoming dirty.

請求項６に記載された発明によれば、排出物導出管を介して複数段に設けられた弁装置により、室内の気密性保持性能を向上できるとともに、排出物導出管を通って下側から入ろうとする外部塵埃や騒音の侵入を確実に防止できる。   According to the sixth aspect of the present invention, the valve device provided in a plurality of stages through the discharge outlet pipe can improve the airtightness maintaining performance in the room, and from the lower side through the discharge outlet pipe. It is possible to reliably prevent the entry of external dust and noise to enter.

以下、本発明を、図１乃至図４に示された一実施の形態、図５に示された他の実施の形態、図６に示されたさらに別の実施の形態を参照しながら詳細に説明する。   Hereinafter, the present invention will be described in detail with reference to one embodiment shown in FIGS. 1 to 4, another embodiment shown in FIG. 5, and still another embodiment shown in FIG. 6. explain.

図３に示されるように、車両としての建設機械11は、下部走行体12に上部旋回体13が旋回可能に設けられ、この上部旋回体13に動力装置14、キャブ15および作業装置16が搭載された油圧ショベルである。キャブ15は、ドア17を有する室としての運転室18を形成している。   As shown in FIG. 3, in a construction machine 11 as a vehicle, an upper swing body 13 is turnably provided on a lower traveling body 12, and a power unit 14, a cab 15, and a work device 16 are mounted on the upper swing body 13. Hydraulic excavator. The cab 15 forms a cab 18 as a chamber having a door 17.

図４は、運転室18内の床構造を示し、油圧ショベルのオペレータが座る運転席20が設置されたキャブ内の床部材としてのフロアプレート（キャブフロア）21に、長円状に穿孔された床開口部22が設けられ、この床開口部22に弁装置としてのダストバルブ23が設けられている。   FIG. 4 shows a floor structure in the cab 18 and is perforated in an oval shape on a floor plate (cab floor) 21 as a floor member in a cab in which a driver's seat 20 on which an operator of a hydraulic excavator sits. A floor opening 22 is provided, and a dust valve 23 as a valve device is provided in the floor opening 22.

このダストバルブ23は、運転室18内の圧が一定圧以下のときは図１に実線で示されるように閉じ状態にあり、一定圧を超えるときは図１に２点鎖線で示されるように開き状態に変形可能な可撓性材料により成形されたものである。   The dust valve 23 is in a closed state as shown by a solid line in FIG. 1 when the pressure in the cab 18 is below a certain pressure, and as shown by a two-dot chain line in FIG. It is formed of a flexible material that can be deformed into an open state.

図１および図２に示されるように、ダストバルブ23は、Ｖ字形断面に形成された弁本体24と、この弁本体24の上部に設けられた定形の排出物受入口部25と、弁本体24の下部に開口変形可能に設けられた排出物出口スリット部26と、弁本体24の上部外側に一体に設けられ、フロアプレート21に面一に嵌着された凹形断面の取付フランジ部27とを、ゴムまたは柔軟性のある合成樹脂により一体成形した一種の逆止弁である。   As shown in FIGS. 1 and 2, the dust valve 23 includes a valve main body 24 formed in a V-shaped cross section, a fixed discharge receiving portion 25 provided on the upper portion of the valve main body 24, and a valve main body. A discharge outlet slit portion 26 provided in the lower portion of the opening 24 so as to be deformable, and a mounting flange portion 27 having a concave cross section provided integrally with the upper portion of the valve body 24 and fitted flush with the floor plate 21. Is a kind of check valve integrally formed of rubber or flexible synthetic resin.

フロアプレート21の下側には、スイングフレーム底板またはボトムガードなどの底板部材28が設けられているので、この底板部材28にてダストバルブ23の下側に対向する部分には、底板開口部29が穿設されている。   A bottom plate member 28 such as a swing frame bottom plate or a bottom guard is provided on the lower side of the floor plate 21, so that a portion of the bottom plate member 28 facing the lower side of the dust valve 23 has a bottom plate opening 29. Is drilled.

図４に示されるように、フロアプレート21上の前半分には、ダストバルブ23上に重ならないようにフロアマット30が設置され、また、フロアプレート21上であって運転席20の下側には、運転室18内の圧を外部の圧より高く維持することが可能な空調装置としてのエアコンユニット31が設置されている。   As shown in FIG. 4, a floor mat 30 is installed in the front half on the floor plate 21 so as not to overlap the dust valve 23, and on the floor plate 21 and below the driver's seat 20. The air conditioner unit 31 is installed as an air conditioner capable of maintaining the pressure in the cab 18 higher than the external pressure.

そして、床開口部22およびダストバルブ23は、このエアコンユニット31の内気循環用の内気取入口32の前側に設置されている。運転室18内の塵埃は、この内気取入口32の近辺に吸い寄せられるので、この内気取入口32の前側にダストバルブ23を設置することが望ましい。なお、プレッシャライズ用の外気を取り込むための外気取入口32aは、後方に開口され、キャブ15の背面開口部に接続される。   The floor opening 22 and the dust valve 23 are installed on the front side of the inside air inlet 32 for the inside air circulation of the air conditioner unit 31. Since dust in the cab 18 is sucked near the inside air inlet 32, it is desirable to install a dust valve 23 on the front side of the inside air inlet 32. Note that the outside air inlet 32a for taking in outside air for pressure opening is opened rearward and connected to the rear opening of the cab 15.

次に、この実施の形態の作用効果を説明する。   Next, the function and effect of this embodiment will be described.

建設機械11は塵埃の多い劣悪環境化で稼働されることが多いので、外部の塵埃が運転室18内に侵入しないように、運転室18内の内気圧を外気圧よりやや高く維持するプレッシャライズ機能を有する加圧式のキャブ15が採用されている。   Since the construction machine 11 is often operated in a dusty environment with a lot of dust, the pressure inside the cab 18 is kept slightly higher than the external pressure so that external dust does not enter the cab 18 A pressurizing cab 15 having a function is employed.

この加圧式のキャブ15では気密性を高く保持する必要があり、圧力を安易に抜かないようにするために、通常は、ダストバルブ23の底部の排出物出口スリット部26が、その成形材料が有する弾性により、図１に実線で示されるように閉じているので、運転室18の気密は保たれ、外部の塵埃や騒音が運転室18内に入ってくることは無い。   In this pressurization type cab 15, it is necessary to keep the air tightness high, and in order not to easily release the pressure, the discharge outlet slit portion 26 at the bottom of the dust valve 23 is usually provided with a molding material. 1 is closed as indicated by the solid line in FIG. 1, the airtightness of the cab 18 is maintained, and external dust and noise do not enter the cab 18.

その一方で、キャブ15内の密閉度を高めているため、ドア17を閉める際に内圧が高くなり、ドア17が閉まりにくいので、ドア17を閉めたときの圧抜きは必要である。   On the other hand, since the degree of sealing in the cab 15 is increased, the internal pressure becomes high when the door 17 is closed, and the door 17 is difficult to close. Therefore, it is necessary to release the pressure when the door 17 is closed.

このため、ダストバルブ23の底部の排出物出口スリット部26は通常閉じた状態であるが、運転室18のドア17を閉める際に、運転室18内の気圧が上がると、その上昇した気圧によって、ダストバルブ23の排出物出口スリット部26が、閉じ方向の弾性に抗して、図１に２点鎖線で示されるように開き、運転室18内の圧が外部へ抜かれるので、ドア17を容易に閉めることが可能となる。   For this reason, the discharge outlet slit 26 at the bottom of the dust valve 23 is normally closed, but when the pressure inside the cab 18 rises when the door 17 of the cab 18 is closed, the increased atmospheric pressure The discharge outlet slit 26 of the dust valve 23 opens against the elasticity in the closing direction as shown by a two-dot chain line in FIG. 1, and the pressure in the cab 18 is released to the outside, so that the door 17 Can be easily closed.

この圧抜き時に、ダストバルブ23内に溜まった排出物としての塵埃、砂または排水などは、自動的に床下に排出される。すなわち、掃除しにくい場所の塵埃なども自動的に外部へ排出される。   At the time of this pressure release, dust, sand, drainage, or the like as waste accumulated in the dust valve 23 is automatically discharged under the floor. That is, dust and the like that are difficult to clean are automatically discharged to the outside.

また、その際に、ダストバルブ23の回りの砂・塵埃もダストバルブ23内に吸込まれ、エアコンの内気取入口32の前側の床面は自動的に綺麗になる。   At that time, sand and dust around the dust valve 23 are also sucked into the dust valve 23, and the floor surface in front of the air intake 32 of the air conditioner is automatically cleaned.

このように、床開口部22に取り付けられたダストバルブ23は、運転室18内の圧が一定圧以下（例えば５０Ｐａ以下）のときは閉じ状態にあり一定圧を超えるときは開き状態に変形可能な可撓性材料により成形されたので、運転室18内の圧が一定圧以下のときは、閉じ状態により運転室18内の気密性を保持して、塵埃や外部騒音の運転室18内への侵入を防止でき、かつ、ドア17を閉めたときの運転室18内が一定圧を超えたときは、開き状態への変形により、運転室18内の異常な昇圧を防止できるとともに、このとき外部へ強制的に排出される内気と共に、ダストバルブ23内および運転室18内に溜まっている塵埃などを外部へ自動的に排出できる。   As described above, the dust valve 23 attached to the floor opening 22 is closed when the pressure in the cab 18 is a certain pressure or less (for example, 50 Pa or less), and can be deformed to be opened when the pressure exceeds the certain pressure. When the pressure inside the cab 18 is below a certain level, the airtightness inside the cab 18 is maintained by the closed state, and dust and external noise are moved into the cab 18 When the inside of the cab 18 exceeds a certain pressure when the door 17 is closed, the abnormal pressure rise in the cab 18 can be prevented by deformation to the open state, and at this time Along with the inside air that is forcibly discharged to the outside, dust and the like accumulated in the dust valve 23 and the cab 18 can be automatically discharged to the outside.

また、Ｖ字形断面の弁本体24の上部に定形の排出物受入口部25を設け、下部に排出物出口スリット部26を開口変形可能に設けたので、内圧保持機能と逆止機能とを有するダストバルブ23をシンプルな構造で安価に一体成形できるとともに、運転室18内の圧が一定圧以下のときは、運転室18のフロアプレート21上で移動する塵埃などを排出物受入口部25から弁本体24内に落し込んで、フロアプレート21上に散乱することを防止できるとともに、運転室18内が一定圧を超えたときは、弁本体24内に溜め込まれた塵埃などを効率よく外部へ排出できる。   In addition, a fixed discharge receiving portion 25 is provided at the upper portion of the valve body 24 having a V-shaped cross section, and a discharge outlet slit portion 26 is provided at the lower portion so as to be open-deformable. The dust valve 23 can be integrally molded at a low cost with a simple structure.When the pressure in the cab 18 is below a certain level, dust moving on the floor plate 21 of the cab 18 can be removed from the discharge inlet 25. It can be prevented from falling into the valve body 24 and being scattered on the floor plate 21, and when the inside of the cab 18 exceeds a certain pressure, dust etc. stored in the valve body 24 can be efficiently discharged to the outside. Can be discharged.

さらに、運転室18内の圧を外部の圧より高く維持することが可能な空調装置の機能をダストバルブ23により維持できるとともに、床開口部22およびダストバルブ23は、この空調装置の内気循環用の内気取入口32の前側に設置されたので、空調装置の内気取入口32に吸引された運転室18内の塵埃を、内気取入口32の前側に設置された床開口部22からダストバルブ23内に自動的に集め、高圧時に外部へ排出する自動集塵・排出システムを構成できる。   Further, the function of the air conditioner capable of maintaining the pressure in the cab 18 higher than the external pressure can be maintained by the dust valve 23, and the floor opening 22 and the dust valve 23 are used for circulating the inside air of the air conditioner. Therefore, the dust inside the cab 18 sucked into the air intake 32 of the air conditioner is removed from the floor opening 22 installed on the front side of the air intake 32 with the dust valve 23. An automatic dust collection and discharge system that automatically collects and discharges to the outside at high pressure can be configured.

また、弁本体24の上部外側に一体に設けられた凹形断面の取付フランジ部27をフロアプレート21に嵌着したので、ダストバルブ23の取り付けを容易にできるとともに、取付フランジ部27をフロアプレート21に面一に嵌着したので、フロアプレート21上の塵埃を弁本体24内に円滑に落し込むことができる。   Also, since the mounting flange portion 27 having a concave cross section provided integrally on the outside of the upper portion of the valve body 24 is fitted to the floor plate 21, the mounting of the dust valve 23 can be facilitated and the mounting flange portion 27 can be mounted on the floor plate. The dust on the floor plate 21 can be smoothly dropped into the valve body 24 because it is flush with the surface 21.

次に、図５に示された他の実施の形態を説明する。   Next, another embodiment shown in FIG. 5 will be described.

前記の運転室18の床構造に加えて、床部材としてのフロアプレート21の下側に、スイングフレーム底板またはボトムガードなどの底板部材28が設けられ、この底板部材28の弁装置下側に底板開口部29が設けられ、フロアプレート21の弁装置としてのダストバルブ23から底板部材28の底板開口部29にわたって排出物導出管33が設けられたものである。   In addition to the floor structure of the cab 18 described above, a bottom plate member 28 such as a swing frame bottom plate or a bottom guard is provided on the lower side of the floor plate 21 as a floor member. An opening 29 is provided, and a discharge outlet pipe 33 is provided from a dust valve 23 as a valve device of the floor plate 21 to a bottom plate opening 29 of the bottom plate member 28.

この排出物導出管33は、底板部材28の底板開口部29に密着させて嵌合し、場合によってはシール部材で塞ぐと良い。   The discharged material outlet tube 33 is fitted in close contact with the bottom plate opening 29 of the bottom plate member 28, and may be closed with a seal member in some cases.

また、この排出物導出管33は、ダストバルブ23と一体成形しても良いし、あるいは、別部材で成形したものを、後で接着剤などで一体化させるようにしても良い。   Further, the discharge lead-out tube 33 may be formed integrally with the dust valve 23, or a product formed by a separate member may be integrated later with an adhesive or the like.

そして、この排出物導出管33によりダストバルブ23を延長して、フロアプレート21の下側に設けられたスイングフレーム底板またはボトムガードなどの底板部材28の底板開口部29から、排出物としての塵埃、排水などを外部へ直接排出する。   Then, the dust valve 23 is extended by the discharge outlet pipe 33, and dust as discharge is discharged from the bottom plate opening 29 of the bottom plate member 28 such as a swing frame bottom plate or bottom guard provided on the lower side of the floor plate 21. , Draining wastewater etc. directly to the outside.

この図５に示された実施の形態によれば、前記実施の形態の作用効果に加えて、フロアプレート21の下側に底板部材28が設けられている場合でも、フロアプレート21のダストバルブ23から底板部材28の底板開口部29にわたって設けられた排出物導出管33により、運転室18内の塵埃、排水などを直接かつ確実に車外へ排出できるとともに、排出物導出管33により底板部材28の底板開口部29を塞ぐので、フロアプレート21の下面に取り付けられた電装品などの電気・電子機器、油圧バルブなどの油圧機器、ハーネスなどの電気配線または油圧ホースなどの油圧配管に、フロアプレート21上からの排出物および底板開口部29からの外部侵入物が付着して汚れることを防止できる。さらには、これらの機器、配線または配管の交換時に、付着している埃がこれらの中にコンタミネーションとして混入するおそれも低減でき、信頼性の向上およびメンテナンスの容易化につながる。   According to the embodiment shown in FIG. 5, in addition to the operational effects of the above-described embodiment, even when the bottom plate member 28 is provided on the lower side of the floor plate 21, the dust valve 23 of the floor plate 21 is provided. Dust discharge pipe 33 provided over the bottom plate opening 29 of the bottom plate member 28 can directly and reliably discharge dust, drainage, etc. in the cab 18 to the outside of the vehicle. Since the bottom plate opening 29 is closed, the floor plate 21 can be connected to electrical / electronic equipment such as electrical components, hydraulic equipment such as hydraulic valves, electrical wiring such as harnesses, or hydraulic piping such as hydraulic hoses attached to the lower surface of the floor plate 21. It is possible to prevent the discharge from the top and the external intrusion from the bottom plate opening 29 from adhering and becoming dirty. Furthermore, when these devices, wirings or pipes are replaced, the possibility that adhering dust is mixed into these as contamination can be reduced, leading to improved reliability and easier maintenance.

次に、図６に示されたさらに別の実施の形態を説明する。   Next, still another embodiment shown in FIG. 6 will be described.

前記の運転室18の床構造に加えて、弁装置としてのダストバルブ23a，23bが、排出物導出管33を介して複数段に設けられたものである。   In addition to the floor structure of the cab 18 described above, dust valves 23a and 23b as valve devices are provided in a plurality of stages via the discharge outlet pipe 33.

上側のダストバルブ23aは、前記ダストバルブ23と同一構造の逆止弁であり、また、下側のダストバルブ23bは、前記ダストバルブ23と同様に、Ｖ字形断面に形成された弁本体24と、この弁本体24の上部に設けられた定形の排出物受入口部25と、弁本体24の下部に開口変形可能に設けられた排出物出口スリット部26とを、ゴムまたは柔軟性のある合成樹脂により一体成形した逆止弁である。   The upper dust valve 23a is a check valve having the same structure as the dust valve 23, and the lower dust valve 23b is a valve body 24 formed in a V-shaped cross section, like the dust valve 23. A rubber or flexible synthetic material is formed by a fixed discharge receiving portion 25 provided at the upper portion of the valve body 24 and an discharge outlet slit portion 26 provided at the lower portion of the valve body 24 so as to be openable and deformable. This is a check valve integrally formed of resin.

この下側のダストバルブ23bは、排出物導出管33と一体成形しても良いし、あるいは、別部材で成形したものを、後で接着剤などで一体化させるようにしても良い。   The lower dust valve 23b may be integrally formed with the discharge outlet tube 33, or a member molded with a separate member may be integrated later with an adhesive or the like.

この図６に示された実施の形態によれば、前記実施の形態の作用効果に加えて、排出物導出管33を介して複数段に設けられたダストバルブ23a，23bにより、運転室18内の気密性保持性能を向上できるとともに、排出物導出管33を通って下側から入ろうとする外部塵埃や騒音の侵入を確実に防止できる。   According to the embodiment shown in FIG. 6, in addition to the operational effects of the above-described embodiment, the inside of the cab 18 is provided by the dust valves 23a and 23b provided in a plurality of stages via the discharge outlet pipe 33. In addition to improving the airtightness holding performance, it is possible to reliably prevent intrusion of external dust and noise trying to enter from the lower side through the discharge outlet pipe 33.

図５および図６に示された排出物導出管33、図６に示された下側のダストバルブ23bは、建設機械11の下部走行体12に対し上部旋回体13が旋回する際に、下部走行体12の履帯などの上に堆積した土砂などとの接触による破損を防止するために、スイングフレーム底板またはボトムガードなどの底板部材28の下面から排出物導出管33やダストバルブ23bの先端が突出しない長さおよび形状が望ましい。   5 and 6 and the lower dust valve 23b shown in FIG. 6 are provided when the upper swing body 13 rotates with respect to the lower traveling body 12 of the construction machine 11. In order to prevent damage due to contact with earth and sand accumulated on the crawler belt etc. of the traveling body 12, the tips of the discharge outlet pipe 33 and the dust valve 23b are connected to the bottom surface of the bottom plate member 28 such as the swing frame bottom plate or bottom guard. A length and shape that does not protrude is desirable.

なお、本発明は、建設機械11の加圧式キャブ15に適用することが望ましいが、必ずしも加圧式キャブ15に限定されるものではなく、例えば、自動車の室内あるいはトランクルームにも適用可能である。   Note that the present invention is preferably applied to the pressurization cab 15 of the construction machine 11, but is not necessarily limited to the pressurization cab 15, and can be applied to, for example, an automobile interior or a trunk room.

また、本発明に係るダストバルブ23，23a，23bは、エアコンユニット31の内気循環用の内気取入口32の前側に設置することが望ましいが、必ずしもこの場所に限定されるものではなく、例えば、フロアプレート21の隅などの塵埃が溜まりやすい他の場所に設置しても良い。   The dust valves 23, 23a, and 23b according to the present invention are preferably installed on the front side of the inside air inlet 32 for the inside air circulation of the air conditioner unit 31, but are not necessarily limited to this place, for example, You may install in other places where dust tends to collect, such as a corner of floor plate 21.

また、床部材をフロアプレート21としたが、床部材をフロアマットとしても良い。すなわち、本発明に係る床開口部22をフロアマットに設け、さらに、弁装置としてのダストバルブ23を、フロアマットと一体化しても良い。   Further, although the floor member is the floor plate 21, the floor member may be a floor mat. That is, the floor opening 22 according to the present invention may be provided in the floor mat, and the dust valve 23 as a valve device may be integrated with the floor mat.

本発明は、建設機械11、自動車などの車両の室の床構造として利用可能である。   The present invention can be used as a floor structure of a room of a vehicle such as a construction machine 11 or an automobile.

本発明に係る車両の床構造の一実施の形態を示す要部断面図である。It is principal part sectional drawing which shows one Embodiment of the floor structure of the vehicle which concerns on this invention. 同上床構造の弁装置を示す斜視図である。It is a perspective view which shows the valve apparatus of a floor structure same as the above. 同上床構造のキャブを搭載した建設機械の斜視図である。It is a perspective view of the construction machine carrying the cab of the same floor structure. 同上床構造のキャブ内構成を示す斜視図である。It is a perspective view which shows the cab structure of a floor structure same as the above. 同上床構造の他の実施の形態を示す断面図である。It is sectional drawing which shows other embodiment of a floor structure same as the above. 同上床構造のさらに別の実施の形態を示す断面図である。It is sectional drawing which shows another embodiment of a floor structure same as the above. 従来の床構造のキャブ内構成を示す斜視図である。It is a perspective view which shows the structure in the cab of the conventional floor structure.

符号の説明Explanation of symbols

11 車両としての建設機械
17 ドア
18 室としての運転室
21 床部材としてのフロアプレート
22 床開口部
23，23a，23b 弁装置としてのダストバルブ
24 弁本体
25 排出物受入口部
26 排出物出口スリット部
27 取付フランジ部
28 底板部材
29 底板開口部
31 空調装置としてのエアコンユニット
32 内気取入口
33 排出物導出管 11 Construction machinery as a vehicle
17 Door
18 cabs
21 Floor plate as floor material
22 Floor opening
23, 23a, 23b Dust valve as valve device
24 Valve body
25 Emission receptacle
26 Waste outlet slit
27 Mounting flange
28 Bottom plate member
29 Bottom plate opening
31 Air conditioner unit as an air conditioner
32 Inside air intake
33 Emission discharge pipe

Claims (6)

ドアを有する車両の室に設けられた床部材と、
この床部材に設けられた床開口部と、
この床開口部に設けられ、室内の圧が一定圧以下のときは閉じ状態にあり一定圧を超えるときは開き状態に変形可能な可撓性材料により成形された弁装置と
を具備したことを特徴とする車両の床構造。 A floor member provided in a vehicle room having a door;
A floor opening provided in the floor member;
A valve device formed of a flexible material which is provided in the floor opening and is closed when the pressure in the room is equal to or lower than the predetermined pressure and can be deformed to open when the pressure exceeds the predetermined pressure. Characteristic vehicle floor structure. 弁装置は、
Ｖ字形断面に形成された弁本体と、
弁本体の上部に設けられた定形の排出物受入口部と、
弁本体の下部に開口変形可能に設けられた排出物出口スリット部と
を具備したことを特徴とする請求項１記載の車両の床構造。 The valve device
A valve body formed in a V-shaped cross section;
A regular discharge receptacle provided at the top of the valve body;
The vehicle floor structure according to claim 1, further comprising: a discharge outlet slit portion provided in a lower portion of the valve main body so as to be capable of opening deformation. 床部材上に設置された、室内の圧を外部の圧より高く維持することが可能な空調装置を備え、
床開口部および弁装置は、この空調装置の内気循環用の内気取入口の前側に設置された
ことを特徴とする請求項１または２記載の車両の床構造。 The air conditioner installed on the floor member is capable of maintaining the indoor pressure higher than the external pressure,
The floor structure of a vehicle according to claim 1 or 2, wherein the floor opening and the valve device are installed on the front side of the inside air inlet for the inside air circulation of the air conditioner. 弁本体の上部外側に一体に設けられ、床部材に面一に嵌着された凹形断面の取付フランジ部
を具備したことを特徴とする請求項１乃至３のいずれか記載の車両の床構造。 The vehicle floor structure according to any one of claims 1 to 3, further comprising a mounting flange portion having a concave cross section that is integrally provided on an upper outer side of the valve body and is flush with a floor member. . 床部材の下側に設けられた底板部材と、
この底板部材の弁装置下側に設けられた底板開口部と、
床部材の弁装置から底板部材の底板開口部にわたって設けられた排出物導出管と
を具備したことを特徴とする請求項１乃至４のいずれか記載の車両の床構造。 A bottom plate member provided on the lower side of the floor member;
A bottom plate opening provided on the bottom side of the valve device of the bottom plate member;
The vehicle floor structure according to any one of claims 1 to 4, further comprising: an exhaust discharge pipe provided from the valve device of the floor member to the bottom plate opening of the bottom plate member. 排出物導出管を介して、弁装置が複数段に設けられた
ことを特徴とする請求項５記載の車両の床構造。 6. The vehicle floor structure according to claim 5, wherein the valve devices are provided in a plurality of stages through the discharge outlet pipe.
JP2007296629A 2007-11-15 2007-11-15 Floor structure of vehicle Pending JP2009120046A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007296629A JP2009120046A (en) 2007-11-15 2007-11-15 Floor structure of vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007296629A JP2009120046A (en) 2007-11-15 2007-11-15 Floor structure of vehicle

Publications (1)

Publication Number Publication Date
JP2009120046A true JP2009120046A (en) 2009-06-04

Family

ID=40812692

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007296629A Pending JP2009120046A (en) 2007-11-15 2007-11-15 Floor structure of vehicle

Country Status (1)

Country Link
JP (1) JP2009120046A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011089273A (en) * 2009-10-20 2011-05-06 Caterpillar Sarl Cab structure of working machine
JP2012144928A (en) * 2011-01-13 2012-08-02 Hitachi Constr Mach Co Ltd Device for preventing air pressure rise inside operator cab
JP5096626B1 (en) * 2012-02-23 2012-12-12 株式会社小松製作所 Work vehicle
JP5118259B1 (en) * 2012-03-30 2013-01-16 株式会社小松製作所 Cab
WO2013125059A1 (en) * 2012-02-23 2013-08-29 株式会社小松製作所 Work vehicle cab and work vehicle
JP2013174121A (en) * 2012-09-27 2013-09-05 Komatsu Ltd Cab for work vehicle, and work vehicle
US8740288B2 (en) 2012-03-30 2014-06-03 Komatsu Ltd. Cab
CN115367009A (en) * 2022-08-23 2022-11-22 三一重机有限公司 Lower frame, traveling device and working machine

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61163714A (en) * 1985-01-14 1986-07-24 Nec Corp Frequency multiplying circuit using delay line
JPH01108838A (en) * 1987-10-21 1989-04-26 Nec Corp Magnetic card type public telephone set
JPH0329557A (en) * 1989-06-27 1991-02-07 Mitsubishi Electric Corp Picture reader
JPH10245871A (en) * 1997-03-07 1998-09-14 Komatsu Ltd Floor of operator's cab for construction machine and cleaning method thereof
JP2003211942A (en) * 2002-01-22 2003-07-30 Shin Caterpillar Mitsubishi Ltd Layout structure of air conditioner for construction machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61163714A (en) * 1985-01-14 1986-07-24 Nec Corp Frequency multiplying circuit using delay line
JPH01108838A (en) * 1987-10-21 1989-04-26 Nec Corp Magnetic card type public telephone set
JPH0329557A (en) * 1989-06-27 1991-02-07 Mitsubishi Electric Corp Picture reader
JPH10245871A (en) * 1997-03-07 1998-09-14 Komatsu Ltd Floor of operator's cab for construction machine and cleaning method thereof
JP2003211942A (en) * 2002-01-22 2003-07-30 Shin Caterpillar Mitsubishi Ltd Layout structure of air conditioner for construction machine

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011089273A (en) * 2009-10-20 2011-05-06 Caterpillar Sarl Cab structure of working machine
JP2012144928A (en) * 2011-01-13 2012-08-02 Hitachi Constr Mach Co Ltd Device for preventing air pressure rise inside operator cab
US9126643B2 (en) 2012-02-23 2015-09-08 Komatsu Ltd. Cab for work vehicle and work vehicle
JP5096626B1 (en) * 2012-02-23 2012-12-12 株式会社小松製作所 Work vehicle
WO2013125059A1 (en) * 2012-02-23 2013-08-29 株式会社小松製作所 Work vehicle cab and work vehicle
WO2013125060A1 (en) * 2012-02-23 2013-08-29 株式会社小松製作所 Work vehicle
US9643662B2 (en) 2012-02-23 2017-05-09 Komatsu Ltd. Cab for work vehicle and work vehicle
JP2013174044A (en) * 2012-02-23 2013-09-05 Komatsu Ltd Cab for work vehicle, and work vehicle
US9139979B2 (en) 2012-02-23 2015-09-22 Komatsu Ltd. Work vehicle
JP2013209826A (en) * 2012-03-30 2013-10-10 Komatsu Ltd Cab
EP2664716A1 (en) * 2012-03-30 2013-11-20 Komatsu Ltd. Cab
EP2664716A4 (en) * 2012-03-30 2013-11-27 Komatsu Mfg Co Ltd Cab
CN103429826A (en) * 2012-03-30 2013-12-04 株式会社小松制作所 Cab
US8740288B2 (en) 2012-03-30 2014-06-03 Komatsu Ltd. Cab
CN103429826B (en) * 2012-03-30 2015-04-15 株式会社小松制作所 Cab for construction machinery
JP5118259B1 (en) * 2012-03-30 2013-01-16 株式会社小松製作所 Cab
WO2013145347A1 (en) * 2012-03-30 2013-10-03 株式会社小松製作所 Cab
JP2013174121A (en) * 2012-09-27 2013-09-05 Komatsu Ltd Cab for work vehicle, and work vehicle
CN115367009A (en) * 2022-08-23 2022-11-22 三一重机有限公司 Lower frame, traveling device and working machine
CN115367009B (en) * 2022-08-23 2023-05-16 三一重机有限公司 Lower frame, running gear and operation machinery

Similar Documents

Publication Publication Date Title
JP2009120046A (en) Floor structure of vehicle
EP2848741B1 (en) Air cleaner for the engine of a wheel loader
AU2017227050A1 (en) Positive pressure vent for a vehicle
JP4606360B2 (en) Suction wheel and suction device
JP5507776B1 (en) Work vehicle
JP4832106B2 (en) Air conditioner for vehicles
US20210259499A1 (en) Floor Maintenance Machine With Discharge Funnel
JP2008128077A (en) Cleaning structure of cooling system of work machine
JP5867486B2 (en) Construction machinery
JP4067243B2 (en) Outside air introduction device for construction machine air conditioner
JP3801465B2 (en) Construction machine cab structure
CN113631428B (en) Rear surface structure of cab of vehicle
JP4623504B2 (en) Suction device
JP4306939B2 (en) Air cleaner intake structure
JP5159929B2 (en) Air conditioner for vehicles
JP4113630B2 (en) Drainage with trap
JPH11294272A (en) Drain structure of air cleaner
JP2004237779A (en) Bonnet of working vehicle
US10227092B2 (en) Flap assembly for a motor vehicle
JP2020079494A (en) Drainage suction recovery device
JP2005325590A (en) Engine room of construction machine
US20060046634A1 (en) Fender-accessible air filter
JPH11173225A (en) Dust collector equipment for construction machine
JP2000043549A (en) Gas detecting device for vehicle
JP5912902B2 (en) Arrangement structure of air purification device in crawler work vehicle

Legal Events

Date Code Title Description
A621 Written request for application examination

Effective date: 20091124

Free format text: JAPANESE INTERMEDIATE CODE: A621

A711 Notification of change in applicant

Effective date: 20100713

Free format text: JAPANESE INTERMEDIATE CODE: A711

A521 Written amendment

Effective date: 20100817

Free format text: JAPANESE INTERMEDIATE CODE: A821

RD02 Notification of acceptance of power of attorney

Effective date: 20100817

Free format text: JAPANESE INTERMEDIATE CODE: A7422

A131 Notification of reasons for refusal

Effective date: 20110615

Free format text: JAPANESE INTERMEDIATE CODE: A131

A02 Decision of refusal

Effective date: 20111130

Free format text: JAPANESE INTERMEDIATE CODE: A02