JP2005306066A - Transparent plate mounting structure of construction machine and driver's cab of construction machine - Google Patents

Transparent plate mounting structure of construction machine and driver's cab of construction machine Download PDF

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JP2005306066A
JP2005306066A JP2004121874A JP2004121874A JP2005306066A JP 2005306066 A JP2005306066 A JP 2005306066A JP 2004121874 A JP2004121874 A JP 2004121874A JP 2004121874 A JP2004121874 A JP 2004121874A JP 2005306066 A JP2005306066 A JP 2005306066A
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transparent plate
construction machine
plate
mounting structure
rubber
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Koji Fujita
浩二 藤田
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Hitachi Construction Machinery Co Ltd
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Hitachi Construction Machinery Co Ltd
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Priority to JP2004121874A priority Critical patent/JP2005306066A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a transparent plate mounting structure of a construction machine for preventing the visual field from a driver's cab from being narrowed and the driver's cab of the construction machine. <P>SOLUTION: A rubber plate 111, a sealing member 114, a glass plate 101 and a pressing plate 131 adhered with a rubber plate 112 are mounted on a glass mounting surface 102 in this order. A rubber plate 113 is arranged to be inscribed in an inner peripheral part of a screw seat 121. The pressing plate 131 is fixed to an abutting surface 122 of the screw seat 121 by using a bolt 133. A height H from the glass mounting surface 102 to the abutting surface 122 is shorter than total of thickness t1, t2 and tg of each of the rubber plates 111 and 112 and the glass plate 101. The rubber plates 111 and 112 therefore are pressed between the glass mounting surface 102 and the pressing plate 131 to be bent in thickness directions when the pressing plate 131 is fixed to be closely adhered to the abutting surface 122. As a result, the glass plate 101 is fixed since the outer peripheral vicinity is held over the entire periphery by elastic force of the rubber plates 111 and 112. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、建設機械の透明板取付構造に関する。   The present invention relates to a transparent plate mounting structure for a construction machine.

建設機械の運転室の開口部分へ窓ガラスを固定するために、略H型の断面を有するH型ゴムを用いることが知られている(特許文献1参照)。   In order to fix the window glass to the opening part of the cab of the construction machine, it is known to use H-type rubber having a substantially H-shaped cross section (see Patent Document 1).

特開平11−254971号公報JP-A-11-254971

H型ゴムを用いて窓ガラスを固定するためには、開口端のエッジとH型ゴムの一方の溝部とを嵌合させるとともに、窓ガラスの周端部とH型ゴムの他方の溝部とを嵌合させる必要がある。そのため、H型ゴムの溝部に嵌合させるための開口端のエッジとH型ゴムとが開口内側に突出するため、運転室からの視界が狭められてしまう。   In order to fix the window glass using the H-type rubber, the edge of the opening end and one groove portion of the H-type rubber are fitted, and the peripheral end portion of the window glass and the other groove portion of the H-type rubber are connected. Must be mated. Therefore, since the edge of the opening end for fitting into the groove portion of the H-shaped rubber and the H-shaped rubber project inward of the opening, the view from the cab is narrowed.

(1) 請求項1の発明による建設機械の透明板取付構造は、建設機械の運転室の開口に透明板を固定する透明板取付構造において、開口の外側周囲の建設機械の外表面で、透明板の周縁の内外面を挟持して、透明板を外表面に弾性的に支持する第1および第2の弾性部材と、外表面に沿って配設され、透明板を第1および第2の弾性部材を介して外表面に固定する押さえ部材と、押さえ部材を透明板の周縁の外側で外表面に固定する取付部材とを備えることを特徴とする。
(2) 請求項2の発明は、請求項1に記載の建設機械の透明板取付構造において、取付部材は、押さえ部材と当接して、外表面と押さえ部材との間の距離を規定する当接面を有することを特徴とする。
(3) 請求項3の発明は、請求項1または請求項2に記載の建設機械の透明板取付構造において、外表面と押さえ部材との間で、透明板の周端部に対向して設けられる第3の弾性体をさらに備えることを特徴とする。
(4) 請求項4の発明は、請求項1〜3のいずれかの項に記載の建設機械の透明板取付構造において、開口は矩形形状であり、押さえ部材は、開口の各辺と略同一長さの4つの板部材であることを特徴とする。
(5) 請求項5の発明は、請求項1〜3のいずれかの項に記載の建設機械の透明板取付構造において、押さえ部材は、あらかじめ一体的に形成された部材であることを特徴とする。
(6) 請求項6の発明は、請求項1〜5のいずれかの項に記載の建設機械の透明板取付構造において、外表面に固定する前の透明板が落下しないように取付部材に取り付けられ、透明板の下部を支持する受け部材をさらに備えることを特徴とする。
(7) 請求項7の発明は、請求項1〜6のいずれかの項に記載の建設機械の透明板取付構造において、外表面に接する第1の弾性部材の外側において、透明板と外表面との間をシールするシール部材をさらに備えることを特徴とする。
(8) 請求項8の発明による建設機械の運転室は、請求項1〜7のいずれかの項に記載の建設機械の透明板取付構造を備えることを特徴とする。
(1) The transparent plate mounting structure for a construction machine according to the invention of claim 1 is a transparent plate mounting structure for fixing a transparent plate to the opening of the cab of the construction machine, and is transparent on the outer surface of the construction machine around the outside of the opening. First and second elastic members sandwiching the inner and outer surfaces of the peripheral edge of the plate and elastically supporting the transparent plate on the outer surface, and the first and second transparent plates are disposed along the outer surface. A pressing member that is fixed to the outer surface via an elastic member, and an attachment member that fixes the pressing member to the outer surface outside the periphery of the transparent plate are provided.
(2) According to a second aspect of the present invention, in the transparent plate mounting structure for a construction machine according to the first aspect, the mounting member abuts against the pressing member to define a distance between the outer surface and the pressing member. It has a contact surface.
(3) The invention according to claim 3 is the transparent plate mounting structure for a construction machine according to claim 1 or 2, and is provided between the outer surface and the pressing member so as to face the peripheral end of the transparent plate. The third elastic body is further provided.
(4) The invention of claim 4 is the transparent plate mounting structure for a construction machine according to any one of claims 1 to 3, wherein the opening is rectangular and the pressing member is substantially the same as each side of the opening. It is characterized by four plate members having a length.
(5) The invention of claim 5 is the transparent plate mounting structure for a construction machine according to any one of claims 1 to 3, wherein the pressing member is a member formed integrally in advance. To do.
(6) The invention according to claim 6 is the transparent plate mounting structure for a construction machine according to any one of claims 1 to 5, wherein the transparent plate before being fixed to the outer surface is attached to the mounting member so as not to fall. And a receiving member that supports the lower portion of the transparent plate.
(7) According to a seventh aspect of the present invention, in the transparent plate mounting structure for a construction machine according to any one of the first to sixth aspects, on the outer side of the first elastic member in contact with the outer surface, the transparent plate and the outer surface And a sealing member for sealing between the two.
(8) A cab of a construction machine according to the invention of claim 8 is provided with the transparent plate mounting structure for a construction machine according to any one of claims 1 to 7.

本発明によれば、透明板を第1および第2の弾性体で挟持して外表面に固定するように構成した。これにより、H型ゴムを使用せずに透明板を固定できるので、開口からの視界を拡大でき、安全性および利便性を向上できる。   According to the present invention, the transparent plate is sandwiched between the first and second elastic bodies and fixed to the outer surface. Thereby, since a transparent board can be fixed without using H type rubber, the field of view from an opening can be expanded and safety and convenience can be improved.

本発明による建設機械の透明板取付構造を油圧ショベルに対して適用した、一実施の形態を説明する。図1は、油圧ショベルの外観を示す図である。この油圧ショベル10は、走行体1と、走行体1上に旋回可能に設けられた旋回体2とを有する。旋回体2には、旋回体2の上部前方に設けられた運転室3と、旋回体2の中央からの後方側にかけて設けられたエンジン室4と、エンジン室4の下部後方に取り付けられたカウンタウエイト5と、旋回体2の前方に取り付けられ、ブーム11とアーム12とバケット13とからなる多関節型のフロント装置6とが設けられている。   An embodiment in which a transparent plate mounting structure for a construction machine according to the present invention is applied to a hydraulic excavator will be described. FIG. 1 is a diagram illustrating an appearance of a hydraulic excavator. The hydraulic excavator 10 includes a traveling body 1 and a revolving body 2 provided on the traveling body 1 so as to be able to swivel. The swing body 2 includes an operator cab 3 provided in front of the upper portion of the swing body 2, an engine chamber 4 provided from the center to the rear side of the swing body 2, and a counter attached to the lower rear of the engine chamber 4. A weight 5 and a multi-joint type front device 6 including a boom 11, an arm 12, and a bucket 13 that are attached to the front of the revolving structure 2 are provided.

走行体1は、左右一対の履帯1aを備え、履帯1aは走行モータ1bにより駆動される。旋回体2は、その中心部に設けられた旋回モータ(不図示)により走行体1に対して旋回される。ブーム11、アーム12、バケット13は、それぞれブームシリンダ14、アームシリンダ15、バケットシリンダ16の伸縮により回動される。これらの各モータおよび各シリンダはエンジン室4に設けた油圧ポンプ(不図示)からの圧油によって駆動される。   The traveling body 1 includes a pair of left and right crawler belts 1a, and the crawler belts 1a are driven by a travel motor 1b. The turning body 2 is turned with respect to the traveling body 1 by a turning motor (not shown) provided at the center thereof. The boom 11, the arm 12, and the bucket 13 are rotated by the expansion and contraction of the boom cylinder 14, the arm cylinder 15, and the bucket cylinder 16, respectively. Each of these motors and each cylinder is driven by pressure oil from a hydraulic pump (not shown) provided in the engine chamber 4.

図2(a),(b)に示すように、運転室3は、上辺が底辺より前方に位置するように傾斜した前面31と、略鉛直である側面32とを備えている。前面31および側面32には、油圧ショベル10の前方および側方を視認するための前方窓100および側方窓20が設けられている。前方窓100は、前面31の略全体にわたって設けられた矩形の窓であり、略全体が開口した前面31に対してガラス板101が厚さ方向に押圧されて固定されている。前方窓100の構造については後に詳述する。   As shown in FIGS. 2A and 2B, the cab 3 includes a front surface 31 that is inclined so that the upper side is positioned forward of the bottom side, and a side surface 32 that is substantially vertical. A front window 100 and a side window 20 for visually confirming the front and side of the excavator 10 are provided on the front surface 31 and the side surface 32. The front window 100 is a rectangular window provided over substantially the entire front surface 31, and the glass plate 101 is pressed and fixed in the thickness direction against the front surface 31 that is substantially entirely open. The structure of the front window 100 will be described in detail later.

側方窓20は、側面32に設けられた窓であり、H型ゴム21と、ガラス板22とを備えている。H型ゴム21は、その断面が略H型となるように、外周および内周にそれぞれ溝部が設けられた環状部材である。H型ゴム21の外周の溝部と側面32の開口部分のエッジとが嵌合し、内周の溝部とガラス板22の周端部とが嵌合することで、H型ゴム21は、側面32にガラス板22を固定する。ガラス板22を固定するためには、先に側面32の開口部分のエッジにH型ゴム21を嵌合させる必要がある。その後、側面32の開口部分に嵌合されたH型ゴム21の内周の溝部にガラス板22を嵌合させて、ガラス板22を側面32に固定する。   The side window 20 is a window provided on the side surface 32 and includes an H-shaped rubber 21 and a glass plate 22. The H-type rubber 21 is an annular member provided with grooves on the outer periphery and the inner periphery so that the cross-section thereof is substantially H-shaped. The groove of the outer periphery of the H-type rubber 21 and the edge of the opening portion of the side surface 32 are fitted, and the groove of the inner periphery and the peripheral end of the glass plate 22 are fitted, whereby the H-type rubber 21 is The glass plate 22 is fixed to the surface. In order to fix the glass plate 22, it is necessary to first fit the H-type rubber 21 to the edge of the opening portion of the side surface 32. Thereafter, the glass plate 22 is fitted into the groove on the inner periphery of the H-shaped rubber 21 fitted in the opening portion of the side surface 32, and the glass plate 22 is fixed to the side surface 32.

−−−前方窓100の構造−−−
図3、4は、それぞれ図2(b)のIII−III断面およびIV−IV断面を示す図であり、ガラス板101の固定状態を示す図である。図5は、図3に示した断面図と同じ位置から見た、ガラス板101を取り付ける前のピラー33の近傍の断面図である。運転室3の前面31の左右端近傍には、ピラー33が設けられている。36は溶接ビードである。前面31の上部および下部近傍には、上部梁34および下部フレーム前端部35が設けられている。ガラス取付面102は、ピラー33、上部梁34および下部フレーム前端部35の前方で、矩形の開口部103の外側周囲を一定の幅で取り囲むように設けられた面(外表面)であり、同一平面内に存在している。
--- Structure of front window 100 ---
FIGS. 3 and 4 are views showing the III-III cross section and the IV-IV cross section of FIG. FIG. 5 is a cross-sectional view of the vicinity of the pillar 33 before the glass plate 101 is attached, viewed from the same position as the cross-sectional view shown in FIG. Pillars 33 are provided in the vicinity of the left and right ends of the front surface 31 of the cab 3. Reference numeral 36 denotes a weld bead. An upper beam 34 and a lower frame front end portion 35 are provided in the vicinity of the upper portion and the lower portion of the front surface 31. The glass mounting surface 102 is a surface (outer surface) provided in front of the pillar 33, the upper beam 34, and the lower frame front end portion 35 so as to surround the outer periphery of the rectangular opening 103 with a certain width. Exists in the plane.

図3,5に示すように、矩形形状であるガラス取付面102の外周近傍には、ねじ座121が設けられている。ねじ座121は、開口部103から所定距離だけ外側を取り囲むようにガラス取付面102に設けられた部材であり、ガラス取付面102を角型断面のアーチ状に囲う。ねじ座121の当接面122は、ガラス取付面102と平行な面であり、ガラス取付面102から所定距離Hだけ離れている。したがって、当接面122は、ガラス取付面102と平行な同一平面内に存在している。当接面122には、複数の穴123が設けられている。当接面122の背面に相当し、かつ前方から見たときに穴123と一致するねじ座121の内側には、ナット124が固設されている。ナット124には、後述する押さえ板131を固定するボルト133が螺合される。   As shown in FIGS. 3 and 5, a screw seat 121 is provided in the vicinity of the outer periphery of the glass mounting surface 102 having a rectangular shape. The screw seat 121 is a member provided on the glass mounting surface 102 so as to surround the outside from the opening 103 by a predetermined distance, and surrounds the glass mounting surface 102 in an arch shape having a square cross section. The contact surface 122 of the screw seat 121 is a surface parallel to the glass mounting surface 102 and is separated from the glass mounting surface 102 by a predetermined distance H. Therefore, the contact surface 122 exists in the same plane parallel to the glass mounting surface 102. A plurality of holes 123 are provided in the contact surface 122. A nut 124 is fixed inside the screw seat 121 that corresponds to the back surface of the contact surface 122 and coincides with the hole 123 when viewed from the front. A bolt 133 for fixing a presser plate 131 described later is screwed into the nut 124.

押さえ板131は、開口部103と略一致した開口を有する矩形板状部材を矩形形状の四隅で分断した形状を呈する板状部材である。押さえ板131には複数の穴132が設けられている。穴132は、後述するようにガラス板101を固定する際に、ねじ座121に設けられた穴123と一致するように設けられている。   The holding plate 131 is a plate-like member having a shape obtained by dividing a rectangular plate-like member having an opening substantially coincident with the opening 103 at the four corners of the rectangle. The holding plate 131 is provided with a plurality of holes 132. The holes 132 are provided so as to coincide with the holes 123 provided in the screw seat 121 when the glass plate 101 is fixed as will be described later.

ガラス板101は、矩形の開口部103よりも寸法が大きく、ねじ座121の内周部分の寸法よりも小さい矩形形状の透明板である。ガラス板101は、後述するゴム板111,112を介して、ガラス取付面102と押さえ板131との間で押圧されて挟持される。なお、ガラス板101の厚さはtgである。   The glass plate 101 is a rectangular transparent plate having a size larger than that of the rectangular opening 103 and smaller than the size of the inner peripheral portion of the screw seat 121. The glass plate 101 is pressed and sandwiched between the glass mounting surface 102 and the pressing plate 131 via rubber plates 111 and 112 described later. The thickness of the glass plate 101 is tg.

ゴム板111,112は、開口部103と略一致した開口を有し、それぞれが均一な厚さt1,t2である矩形板状の弾性部材である。上述のように、ゴム板111,112は、ガラス取付面102と押さえ板131との間でガラス板101の周縁を弾性的に挟持するための部材である。したがって、ゴム板111,112は、ガラス板101を挟持可能な適度な硬度を有する。なお、ゴム板111の厚さt1とゴム板112の厚さt2とは同一である必要はなく、それぞれで異なっていてもよい。   The rubber plates 111 and 112 are rectangular plate-shaped elastic members that have openings that substantially coincide with the openings 103 and that have uniform thicknesses t1 and t2, respectively. As described above, the rubber plates 111 and 112 are members for elastically holding the periphery of the glass plate 101 between the glass attachment surface 102 and the pressing plate 131. Therefore, the rubber plates 111 and 112 have an appropriate hardness that can sandwich the glass plate 101. Note that the thickness t1 of the rubber plate 111 and the thickness t2 of the rubber plate 112 are not necessarily the same, and may be different from each other.

ゴム板113は、ねじ座121の内周部分に内接する帯状の弾性部材であり、ガラス板101の周端部がねじ座121に直接接触することを防止する。シール材114は、略円形断面を有する軟質ゴム製の線状部材であり、その直径は、ゴム板111の厚さt1より大きい。シール材114はゴム板111,112よりも軟質であり、直径方向に容易に変形可能である。シール材114は、ガラス板101とガラス取付面102との間に配設されて、運転室3の内部への雨水などの侵入を防止するシールとしての役割を果たす。   The rubber plate 113 is a belt-like elastic member that is inscribed in the inner peripheral portion of the screw seat 121, and prevents the peripheral end portion of the glass plate 101 from coming into direct contact with the screw seat 121. The sealing material 114 is a soft rubber linear member having a substantially circular cross section, and its diameter is larger than the thickness t 1 of the rubber plate 111. The sealing material 114 is softer than the rubber plates 111 and 112 and can be easily deformed in the diameter direction. The sealing material 114 is disposed between the glass plate 101 and the glass mounting surface 102 and plays a role as a seal that prevents rainwater and the like from entering the cab 3.

−−−ガラス板101の取付方法−−−
前方窓100には、ガラス取付面102にガラス板101が次のようにして取り付けられる。まず、図5に示すように、何も取り付けられていないガラス取付面102に対して、図6に示すように、ガラス取付面102に、ゴム板111とシール材114とを接着剤などで仮止めするとともに、ねじ座121の内周部分に内接するようにゴム板113を接着剤などで仮止めする。
--- How to attach glass plate 101 ---
The glass plate 101 is attached to the front window 100 on the glass attachment surface 102 as follows. First, as shown in FIG. 5, the rubber plate 111 and the sealing material 114 are temporarily bonded to the glass mounting surface 102 with an adhesive or the like, as shown in FIG. The rubber plate 113 is temporarily fixed with an adhesive or the like so as to be inscribed in the inner peripheral portion of the screw seat 121.

次に、図8に示すように、下部フレーム前端部35の前方に設けられたねじ座121の上面にゴム板113を介してガラス板101を載置する。これにより、ガラス板101の重量をねじ座121で支持できる。ガラス板101は前方に倒れないように支えておく(図7,8)。このときのガラス板101の位置が固定位置となる。   Next, as shown in FIG. 8, the glass plate 101 is placed on the upper surface of the screw seat 121 provided in front of the lower frame front end portion 35 via the rubber plate 113. Thereby, the weight of the glass plate 101 can be supported by the screw seat 121. The glass plate 101 is supported so as not to fall forward (FIGS. 7 and 8). The position of the glass plate 101 at this time is a fixed position.

図9に示すように、固定位置に載置されたガラス板101の前面を、ゴム板112を貼り付けた押さえ板131で押さえるとともに、ボルト133を用いて押さえ板131を当接面122へ固定する。ここで、ガラス取付面102から当接面122間での高さはHであるが、この高さHは、ゴム板111,112、およびガラス板101のそれぞれの厚さt1,t2,tgの合計よりも小さくなるように構成されている。したがって、図3に示すように、押さえ板131が当接面122に密着するように固定されると、ゴム板111,112は、ガラス取付面102と押さえ板131との間で押圧されて厚さ方向に撓む。これにより、ガラス板101は、その外周近傍を全周にわたってゴム板111,112の弾性力で挟持されて固定される。すなわち、ガラス板101の厚さ方向の移動は、ゴム板111,112から受ける厚さ方向の面圧によって弾性的に規制される。また、ガラス板101の面に平行な方向の移動は、ガラス板101とゴム板111,112との摩擦力によって弾性的に規制される。さらに、ガラス板101の面に平行な方向の移動は、ねじ座121の内周部分に内接するゴム板113によっても弾性的に規制される。   As shown in FIG. 9, the front surface of the glass plate 101 placed at the fixing position is pressed by a pressing plate 131 to which a rubber plate 112 is attached, and the pressing plate 131 is fixed to the contact surface 122 using a bolt 133. To do. Here, the height between the glass mounting surface 102 and the contact surface 122 is H, but this height H is the thickness t1, t2, tg of the rubber plates 111, 112 and the glass plate 101, respectively. It is comprised so that it may become smaller than the sum total. Therefore, as shown in FIG. 3, when the pressing plate 131 is fixed so as to be in close contact with the contact surface 122, the rubber plates 111 and 112 are pressed between the glass mounting surface 102 and the pressing plate 131 to increase the thickness. Deflection in the vertical direction. Thereby, the glass plate 101 is clamped and fixed by the elastic force of the rubber plates 111 and 112 over the entire periphery in the vicinity of the outer periphery. That is, the movement of the glass plate 101 in the thickness direction is elastically restricted by the surface pressure in the thickness direction received from the rubber plates 111 and 112. Further, the movement in the direction parallel to the surface of the glass plate 101 is elastically restricted by the frictional force between the glass plate 101 and the rubber plates 111 and 112. Further, the movement in the direction parallel to the surface of the glass plate 101 is also elastically restricted by the rubber plate 113 inscribed in the inner peripheral portion of the screw seat 121.

図10(a),(b)に、H型ゴムを使用した従来の窓枠構造と、本実施の形態の透明板取付構造とを比較した図を示す。図10(a)に示すように、H型ゴム311によってガラス板301を固定するためには、H型ゴム311の外周側の溝311aが前面31の開口部303と嵌合する嵌合しろD1が必要であるため、開口部303を嵌合しろD1の分だけ本実施の形態の開口部103より内側に突出させる必要がある。また、開口部303に嵌合されたH型ゴム311の内側端部311bは、開口部303からさらに距離D2だけ内側に突出して視界を遮る。これに対して、本実施の形態の透明板取付構造では、従来の窓枠構造よりも可視部を拡大でき、その拡大幅は1辺につきD=D1+D2である。したがって、左右方向および上下方向の可視部の拡大幅は2Dとなる。なお、従来の窓枠構造におけるガラス板301の固定順序は、上述した側方窓20の場合と同じである。   FIGS. 10A and 10B show a comparison between a conventional window frame structure using H-shaped rubber and the transparent plate mounting structure of the present embodiment. As shown in FIG. 10A, in order to fix the glass plate 301 with the H-type rubber 311, the groove 311a on the outer peripheral side of the H-type rubber 311 is fitted to the opening 303 of the front surface 31. Therefore, it is necessary to make the opening 303 protrude inward from the opening 103 of the present embodiment by the amount of the fitting portion D1. Further, the inner end 311b of the H-shaped rubber 311 fitted in the opening 303 further protrudes inward from the opening 303 by a distance D2 to block the view. On the other hand, in the transparent plate mounting structure of the present embodiment, the visible part can be enlarged as compared with the conventional window frame structure, and the enlarged width is D = D1 + D2 per side. Therefore, the expansion width of the visible part in the left-right direction and the up-down direction is 2D. In addition, the fixing order of the glass plate 301 in the conventional window frame structure is the same as the case of the side window 20 mentioned above.

上述した建設機械の透明板取付構造では、次の作用効果を奏する。
(1) ガラス板101をゴム板111,112で厚さ方向に挟持して固定するように構成した。これにより、H型ゴムを使用せずにガラス板101を固定できるので、上述のように、透明板取付構造の可視部を拡大して視界を拡大でき、安全性および利便性を向上できる。
The above-described transparent plate mounting structure for a construction machine has the following effects.
(1) The glass plate 101 is sandwiched and fixed in the thickness direction by the rubber plates 111 and 112. Thereby, since the glass plate 101 can be fixed without using H-type rubber, the visual field of the transparent plate mounting structure can be enlarged and the field of view can be enlarged as described above, and safety and convenience can be improved.

(2) H型ゴムを使用していないので、運転室3から前方を見たときに、H型ゴムが見えることがなく、見栄えがよい。 (2) Since no H-shaped rubber is used, when looking forward from the cab 3, the H-shaped rubber is not visible and looks good.

(3) H型ゴム311による従来の窓枠構造では、開口部303へ嵌合されたH型ゴム311に対してガラス板301を取付可能とするため、H型ゴム311の強度を下げざるを得ない。また、H型ゴム311自身の強度によってガラス板301を開口部303で保持する構造である。これに対して本実施の形態の透明板取付構造では、ガラス取付面102と押さえ板131との間でゴム板111,112を介してガラス板101の周縁を弾性的に挟持するので、ガラス板101の固定強度は、主にガラス取付面102および押さえ板131の強度に依存する。また、ガラス板に接触するゴム板111〜113の受圧面積を多くとることができるので、ゴム板111〜113にかかる応力を低減できる。このため、本実施の形態の透明板取付構造は、従来の窓枠構造よりガラス板101の固定強度アップが容易である。したがって、大型のガラス板であっても確実に固定できるので、建設機械の大型化に寄与できる。 (3) In the conventional window frame structure using the H-shaped rubber 311, the glass plate 301 can be attached to the H-shaped rubber 311 fitted into the opening 303, so that the strength of the H-shaped rubber 311 must be lowered. I don't get it. Further, the glass plate 301 is held in the opening 303 by the strength of the H-type rubber 311 itself. In contrast, in the transparent plate mounting structure of the present embodiment, the peripheral edge of the glass plate 101 is elastically sandwiched between the glass mounting surface 102 and the pressing plate 131 via the rubber plates 111 and 112. The fixing strength of 101 mainly depends on the strength of the glass mounting surface 102 and the pressing plate 131. Moreover, since the pressure receiving areas of the rubber plates 111 to 113 that are in contact with the glass plate can be increased, the stress applied to the rubber plates 111 to 113 can be reduced. For this reason, in the transparent plate mounting structure of the present embodiment, the fixing strength of the glass plate 101 can be increased more easily than the conventional window frame structure. Therefore, even a large glass plate can be reliably fixed, which can contribute to an increase in the size of the construction machine.

(4) 上述のように、本実施の形態の透明板取付構造は、従来の窓枠構造よりガラス板101の固定強度を高くできるので、ガラス板101の振動を効率的に抑止できる。このため、運転室3の騒音レベルや振動レベルを低減できるので、運転室を快適にできる。 (4) As described above, since the transparent plate mounting structure of the present embodiment can increase the fixing strength of the glass plate 101 as compared with the conventional window frame structure, vibration of the glass plate 101 can be efficiently suppressed. For this reason, since the noise level and vibration level of the cab 3 can be reduced, the cab can be made comfortable.

(5) H型ゴム311による従来の窓枠構造では、H型ゴム311が嵌合された開口部303に対してガラス板301を取り付けるため、ガラス板301が大型化すると、H型ゴム311の溝部へガラス板301を嵌合させる作業が非常に困難となる。これに対して本実施の形態の透明板取付構造では、ゴム板111〜113などを仮止めするとともに、図8に示すように、下部フレーム前端部35の前方に設けられたねじ座121の上面にゴム板113を介してガラス板101を載置することでガラス板101の重量を支持できるので、大型のガラス板であっても容易に取り付けできる。したがって、組み立ての面でも透明板取付構造の大型化が容易となり、建設機械の大型化に容易に対応できる。 (5) In the conventional window frame structure using the H-shaped rubber 311, the glass plate 301 is attached to the opening 303 into which the H-shaped rubber 311 is fitted. The operation of fitting the glass plate 301 into the groove becomes very difficult. On the other hand, in the transparent plate mounting structure of the present embodiment, the rubber plates 111 to 113 are temporarily fixed and the upper surface of the screw seat 121 provided in front of the lower frame front end portion 35 as shown in FIG. Since the weight of the glass plate 101 can be supported by placing the glass plate 101 via the rubber plate 113, even a large glass plate can be easily attached. Accordingly, it is easy to increase the size of the transparent plate mounting structure in terms of assembly, and it is possible to easily cope with the increase in size of the construction machine.

(6) 従来の窓枠構造では、H型ゴム311の構造上、溝部に挟持できるガラス板の厚さは制限される。これに対して本実施の形態の透明板取付構造では、ねじ座121の当接面122の高さを変えることで、ガラス板の厚肉化に容易に対応できる。例えば、防弾ガラスのように飛来物に対する強度を高めた複層ガラスなども取付可能である。 (6) In the conventional window frame structure, the thickness of the glass plate that can be sandwiched in the groove is limited due to the structure of the H-type rubber 311. In contrast, in the transparent plate mounting structure of the present embodiment, the thickness of the glass plate can be easily coped with by changing the height of the contact surface 122 of the screw seat 121. For example, it is possible to attach a multi-layer glass such as a bulletproof glass having an increased strength against flying objects.

−−−変形例−−−
(1) 上述の説明では、ゴム板112およびねじ座121に固定された押さえ板131の内側の開口部分の大きさが開口部103の大きさと略等しいが、本発明はこれに限定されない。例えば、図11に示すように、運転室3の室外に向かって見たときに外側へ広がるようにゴム板212およびねじ座121に固定された押さえ板231の内側の開口部分を斜めにカットした傾斜面212a,231aを形成するようにしてもよい。こうすることで、運転室3からの視界をさらに広げることができる。
---- Modified example ---
(1) In the above description, the size of the opening portion inside the pressing plate 131 fixed to the rubber plate 112 and the screw seat 121 is substantially equal to the size of the opening 103, but the present invention is not limited to this. For example, as shown in FIG. 11, the opening portion inside the pressing plate 231 fixed to the rubber plate 212 and the screw seat 121 is cut obliquely so as to spread outward when viewed toward the outside of the cab 3. The inclined surfaces 212a and 231a may be formed. By doing so, the field of view from the cab 3 can be further expanded.

(2) 上述の説明では、下部フレーム前端部35の前方の構造は、上部梁34およびピラー33の近傍の構造と同様であるが、本発明はこれに限定されない。例えば、図12に示すように、下部フレーム前端部35の前方のねじ座121の上部に受け部121aを設け、ガラス板101の下部を支持可能とすることで、組み立て工程で、下部フレーム前端部35の前方のねじ座121からガラス板101が滑り落ちるのを防止するようにしてもよい。なお、ガラス板101が下部フレーム前端部35の前方のねじ座121から水平方向に移動して滑り落ちることを防止できれば、受け部121aの取付位置、取り付ける相手の部材、取付方法などは上述の説明に限定されない。また、ガラス板101の取付作業前に上述のねじ座121aと同様の機能を有する板部材をねじ座121に取り付けて固定し、ガラス板101の取付作業が終了した後、この板部材をねじ座121から取り外してもよい。 (2) In the above description, the structure in front of the lower frame front end portion 35 is the same as the structure in the vicinity of the upper beam 34 and the pillar 33, but the present invention is not limited to this. For example, as shown in FIG. 12, a receiving portion 121a is provided on the upper portion of a screw seat 121 in front of the lower frame front end portion 35, and the lower portion of the glass plate 101 can be supported, so that the lower frame front end portion can be supported in the assembly process. The glass plate 101 may be prevented from slipping off from the screw seat 121 in front of 35. If the glass plate 101 can be prevented from moving horizontally from the screw seat 121 in front of the front end portion 35 of the lower frame and sliding down, the mounting position of the receiving portion 121a, the member to be mounted, the mounting method, etc. are as described above. It is not limited. Further, a plate member having the same function as that of the screw seat 121a is attached and fixed to the screw seat 121 before the glass plate 101 is attached. After the glass plate 101 is attached, the plate member is attached to the screw seat. You may remove from 121.

(3) 上述の説明では、押さえ板131は、開口部103と略一致した開口を有する矩形板状部材を矩形形状の四隅で分断した形状を呈する板状部材であるが、本発明はこれに限定されない。押さえ板131の分割位置、分割個数は特に限定されない。また、押さえ板131が一体ものであってもよい。
(4) 上述の説明では、シール材114を設けているが、本発明はこれに限定されない。例えば、ゴム板111の形状、材質よってゴム板111にシール機能を持たせることもできるので、シール材114を省略することもできる。
(3) In the above description, the pressing plate 131 is a plate-like member having a shape obtained by dividing a rectangular plate-like member having an opening substantially coincident with the opening 103 at the four corners of the rectangular shape. It is not limited. The division position and the number of divisions of the pressing plate 131 are not particularly limited. Further, the pressing plate 131 may be integrated.
(4) Although the sealing material 114 is provided in the above description, the present invention is not limited to this. For example, since the rubber plate 111 can have a sealing function depending on the shape and material of the rubber plate 111, the sealing material 114 can be omitted.

(5) 上述の説明では、ゴム板111,112は、開口部103と略一致した開口を有する矩形板状の弾性部材、すなわち、一体成型された物であったが、本発明はこれに限定されない。例えば、所定の長さの板状部材を適宜継ぎ足して使用してもよい。またゴム板113は、ねじ座121の内周部分に配設される帯状の弾性部材であれば、リング状に一体成型されている物であってもよく、少なくとも1本以上の帯状部材の端部をつなぎ合わせた物であってもよい。また、ガラス板101の周端部に巻き付けられていてもよい。 (5) In the above description, the rubber plates 111 and 112 are rectangular plate-like elastic members having an opening substantially coincident with the opening 103, that is, an integrally molded product, but the present invention is limited to this. Not. For example, a plate-like member having a predetermined length may be added as appropriate. Further, the rubber plate 113 may be an integrally molded ring-shaped member as long as it is a belt-like elastic member disposed on the inner peripheral portion of the screw seat 121, and the end of at least one or more belt-like members. The thing which connected the part may be sufficient. Further, it may be wound around the peripheral edge of the glass plate 101.

(6) 上述の説明では、シール材114とはゴム板111の外側へ配設されていたが本発明はこれに限定されず、シール材114をゴム板111の内側へ配設してもよい。
(7)上述の説明では、前方窓100の形状は矩形であったが、本発明はこれに限定されない。矩形以外の多角形であってもよく、円形などのように角がない形状であってもよく、これらを組み合わせた形状であってもよい。
(6) In the above description, the sealing material 114 is disposed outside the rubber plate 111, but the present invention is not limited to this, and the sealing material 114 may be disposed inside the rubber plate 111. .
(7) In the above description, the front window 100 has a rectangular shape, but the present invention is not limited to this. It may be a polygon other than a rectangle, a shape such as a circle with no corners, or a combination of these.

(8) 上述の説明では、ナット124はあらかじめねじ座121に固設されているが、押さえ板131のボルト止めが容易であれば、固設されていなくてもよい。また、ねじ座121の形状は、外表面に向かう力が与えられた押さえ板131を外表面に対して所定の位置で固定できれば上述した説明に限定されない。また、ボルト133およびナット124に代えて、クランプやいわゆるパッチン錠など、他の方法で押さえ板131をねじ座121に取り付けるようにしてもよい。
(9) 上述した各実施の形態および変形例は、それぞれ組み合わせてもよい。
(8) In the above description, the nut 124 is fixed to the screw seat 121 in advance, but may not be fixed if the pressing plate 131 can be easily bolted. The shape of the screw seat 121 is not limited to the above description as long as the pressing plate 131 to which a force directed toward the outer surface can be fixed at a predetermined position with respect to the outer surface. Further, instead of the bolt 133 and the nut 124, the pressing plate 131 may be attached to the screw seat 121 by another method such as a clamp or a so-called patched lock.
(9) You may combine each embodiment and modification which were mentioned above, respectively.

上述の実施の形態およびその変形例において、たとえば、第1および第2の弾性部材はゴム板111およびゴム板112に、シール部材はシール材114に、押さえ部材は押さえ板131に、取付部材はねじ座121に、第3の弾性体はゴム板113に、受け部材は受け部121aにそれぞれ対応する。さらに、本発明の特徴的な機能を損なわない限り、本発明は、上述した実施の形態における機器構成に何ら限定されない。   In the above-described embodiment and its modifications, for example, the first and second elastic members are the rubber plate 111 and the rubber plate 112, the sealing member is the sealing material 114, the pressing member is the pressing plate 131, and the mounting member is The third elastic body corresponds to the screw seat 121, the rubber plate 113, and the receiving member to the receiving portion 121a. Furthermore, as long as the characteristic functions of the present invention are not impaired, the present invention is not limited to the device configuration in the above-described embodiment.

本発明による建設機械の透明板取付構造を適用した油圧ショベル10の外観を示す図である。1 is an external view of a hydraulic excavator 10 to which a transparent plate mounting structure for a construction machine according to the present invention is applied. 運転室3の外観を示す図であり、(a)は側面図であり、(b)は正面図である。It is a figure which shows the external appearance of the cab 3, (a) is a side view, (b) is a front view. 図2(b)のIII−III断面図である。It is III-III sectional drawing of FIG.2 (b). 図2(b)のIV−IV断面図である。It is IV-IV sectional drawing of FIG.2 (b). 図3に示した断面図と同じ位置から見た、ガラス板101を取り付ける前のピラー33の近傍の断面図である。It is sectional drawing of the vicinity of the pillar 33 before attaching the glass plate 101 seen from the same position as sectional drawing shown in FIG. ガラス取付面102にガラス板101を取り付ける手順を示す図である。It is a figure which shows the procedure which attaches the glass plate 101 to the glass attachment surface 102. FIG. ガラス取付面102にガラス板101を取り付ける手順を示す図である。It is a figure which shows the procedure which attaches the glass plate 101 to the glass attachment surface 102. FIG. ガラス取付面102にガラス板101を取り付ける手順を側面から見た断面図である。It is sectional drawing which looked at the procedure which attaches the glass plate 101 to the glass attachment surface 102 from the side surface. ガラス取付面102にガラス板101を取り付ける手順を示す図である。It is a figure which shows the procedure which attaches the glass plate 101 to the glass attachment surface 102. FIG. H型ゴムを使用した従来の窓枠構造と、本実施の形態の透明板取付構造とを比較した図であり、(a)は、従来の窓枠構造を示す図であり、(b)は、本実施の形態の透明板取付構造を示す図である。It is the figure which compared the conventional window frame structure which uses H-type rubber, and the transparent plate attachment structure of this Embodiment, (a) is a figure which shows the conventional window frame structure, (b) It is a figure which shows the transparent plate attachment structure of this Embodiment. 変形例を示す図である。It is a figure which shows a modification. 変形例を示す図である。It is a figure which shows a modification.

符号の説明Explanation of symbols

3 運転室 10 油圧ショベル
20 側方窓 21、311 H型ゴム
22、101,301 ガラス板 31 前面
32 側面 33 ピラー
34 上部梁 35 下部フレーム前端部
100 前方窓 102 ガラス取付面(外表面)
103、303 開口部 111〜113 ゴム板
114 シール材 121 ねじ座
121a 受け部 122 当接面
124 ナット 131 押さえ板
133 ボルト
3 cab 10 hydraulic excavator 20 side window 21, 311 H-type rubber 22, 101, 301 glass plate 31 front surface 32 side surface 33 pillar 34 upper beam 35 lower frame front end 100 front window 102 glass mounting surface (outer surface)
103, 303 Openings 111-113 Rubber plate 114 Sealing material 121 Screw seat 121a Receiving portion 122 Contact surface 124 Nut 131 Holding plate 133 Bolt

Claims (8)

建設機械の運転室の開口に透明板を固定する透明板取付構造において、
前記開口の外側周囲の建設機械の外表面で、前記透明板の周縁の内外面を挟持して、前記透明板を前記外表面に弾性的に支持する第1および第2の弾性部材と、
前記外表面に沿って配設され、前記透明板を前記第1および第2の弾性部材を介して前記外表面に固定する押さえ部材と、
前記押さえ部材を前記透明板の周縁の外側で前記外表面に固定する取付部材とを備えることを特徴とする建設機械の透明板取付構造。
In the transparent plate mounting structure that fixes the transparent plate to the opening of the cab of the construction machine,
First and second elastic members that sandwich the inner and outer surfaces of the peripheral edge of the transparent plate at the outer surface of the construction machine around the outside of the opening and elastically support the transparent plate on the outer surface;
A pressing member disposed along the outer surface and fixing the transparent plate to the outer surface via the first and second elastic members;
A transparent plate mounting structure for a construction machine, comprising: a mounting member that fixes the pressing member to the outer surface outside the periphery of the transparent plate.
請求項1に記載の建設機械の透明板取付構造において、
前記取付部材は、前記押さえ部材と当接して、前記外表面と前記押さえ部材との間の距離を規定する当接面を有することを特徴とする建設機械の透明板取付構造。
The transparent plate mounting structure for a construction machine according to claim 1,
The mounting plate has a contact surface that contacts the pressing member and defines a distance between the outer surface and the pressing member.
請求項1または請求項2に記載の建設機械の透明板取付構造において、
前記外表面と前記押さえ部材との間で、前記透明板の周端部に対向して設けられる第3の弾性体をさらに備えることを特徴とする建設機械の透明板取付構造。
In the transparent plate mounting structure for a construction machine according to claim 1 or 2,
A transparent plate mounting structure for a construction machine, further comprising a third elastic body provided between the outer surface and the pressing member so as to face the peripheral end of the transparent plate.
請求項1〜3のいずれかの項に記載の建設機械の透明板取付構造において、
前記開口は矩形形状であり、
前記押さえ部材は、前記開口の各辺と略同一長さの4つの板部材であることを特徴とする建設機械の透明板取付構造。
In the transparent plate mounting structure for a construction machine according to any one of claims 1 to 3,
The opening is rectangular;
2. The transparent plate mounting structure for a construction machine, wherein the pressing member is four plate members having substantially the same length as each side of the opening.
請求項1〜3のいずれかの項に記載の建設機械の透明板取付構造において、
前記押さえ部材は、あらかじめ一体的に形成された部材であることを特徴とする建設機械の透明板取付構造。
In the transparent plate mounting structure for a construction machine according to any one of claims 1 to 3,
The transparent plate mounting structure for a construction machine, wherein the pressing member is a member formed integrally in advance.
請求項1〜5のいずれかの項に記載の建設機械の透明板取付構造において、
前記外表面に固定する前の前記透明板が落下しないように前記取付部材に取り付けられ、前記透明板の下部を支持する受け部材をさらに備えることを特徴とする建設機械の透明板取付構造。
In the transparent plate mounting structure for a construction machine according to any one of claims 1 to 5,
A transparent plate mounting structure for a construction machine, further comprising a receiving member that is attached to the mounting member so as not to drop the transparent plate before being fixed to the outer surface and supports a lower portion of the transparent plate.
請求項1〜6のいずれかの項に記載の建設機械の透明板取付構造において、
前記外表面に接する第1の弾性部材の外側において、前記透明板と前記外表面との間をシールするシール部材をさらに備えることを特徴とする建設機械の透明板取付構造。
In the transparent plate mounting structure for a construction machine according to any one of claims 1 to 6,
A transparent plate mounting structure for a construction machine, further comprising a seal member that seals between the transparent plate and the outer surface outside the first elastic member in contact with the outer surface.
請求項1〜7のいずれかの項に記載の建設機械の透明板取付構造を備えることを特徴とする建設機械の運転室。   A cab for a construction machine comprising the transparent plate mounting structure for a construction machine according to any one of claims 1 to 7.
JP2004121874A 2004-04-16 2004-04-16 Transparent plate mounting structure of construction machine and driver's cab of construction machine Pending JP2005306066A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100769542B1 (en) 2006-12-06 2007-10-23 김학성 A frame of the forklift cabin which the isolation is easy
WO2010028222A3 (en) * 2008-09-05 2010-07-01 Henkel Ag & Co. Kgaa Edge-encapsulated panels using high damping foam

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100769542B1 (en) 2006-12-06 2007-10-23 김학성 A frame of the forklift cabin which the isolation is easy
WO2010028222A3 (en) * 2008-09-05 2010-07-01 Henkel Ag & Co. Kgaa Edge-encapsulated panels using high damping foam
CN102224029A (en) * 2008-09-05 2011-10-19 汉高股份有限及两合公司 Edge-encapsulated panels using high damping foam
US10272746B2 (en) 2008-09-05 2019-04-30 Henkel Ag & Co. Kgaa Edge-encapsulated panels using high damping foam

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