JP7205788B1 - Vehicle noise cover mounting structure - Google Patents

Vehicle noise cover mounting structure Download PDF

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JP7205788B1
JP7205788B1 JP2021204042A JP2021204042A JP7205788B1 JP 7205788 B1 JP7205788 B1 JP 7205788B1 JP 2021204042 A JP2021204042 A JP 2021204042A JP 2021204042 A JP2021204042 A JP 2021204042A JP 7205788 B1 JP7205788 B1 JP 7205788B1
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bracket
cover
vehicle
width direction
vehicle width
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JP2023089510A (en
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将也 徳武
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Isuzu Motors Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
    • B60K5/12—Arrangement of engine supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/20—Floors or bottom sub-units

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)

Abstract

【課題】架装物ブラケットの板厚が異なる場合であっても、フレーム架装物の下方に配置される音源からの騒音を共通のカバーブラケットを用いて好適に抑制する。【解決手段】左右のカバーブラケット１４Ｌ，１４Ｒの各々は、架装物ブラケット９の車体側連結板部１１に車幅方向外側から重なって固定されるブラケット上部１５と、ブラケット上部１５から下方へ延びるブラケット下部１６とを有する。左右の板状スペーサ２０Ｌ，２０Ｒは、左右のカバーブラケット１４Ｌ，１４Ｒのブラケット下部１６に車幅方向内側からそれぞれ重なる。左右の騒音カバー１３Ｌ，１３Ｒは、左右の板状スペーサ２０Ｌ，２０Ｒに車幅方向内側から重なった状態で左右のカバーブラケット１４Ｌ，１４Ｒにそれぞれ固定され、音源７を少なくとも車幅方向外側から覆う。【選択図】図２A common cover bracket is used to suitably suppress noise from a sound source arranged below a frame mounting object, even if mounting object brackets have different plate thicknesses. SOLUTION: Left and right cover brackets 14L, 14R each include a bracket upper portion 15 that overlaps and is fixed to a vehicle body side connecting plate portion 11 of an attachment bracket 9 from the outside in the vehicle width direction, and extends downward from the bracket upper portion 15. and a bracket lower portion 16 . The left and right plate-like spacers 20L, 20R respectively overlap the bracket lower portions 16 of the left and right cover brackets 14L, 14R from the inside in the vehicle width direction. The left and right noise covers 13L, 13R are fixed to the left and right cover brackets 14L, 14R in a state of overlapping the left and right plate-like spacers 20L, 20R from the inside in the vehicle width direction, and cover the sound source 7 at least from the outside in the vehicle width direction. [Selection drawing] Fig. 2

Description

本開示は、車両の騒音カバー取付構造に関する。 The present disclosure relates to a vehicle noise cover mounting structure.

特許文献１には、トラックの遮音カバー組付け機構が記載されている。左右シャシフレーム間にはエンジンが載置され、遮音カバーはエンジンを下方から覆う。各シャシフレームの外側面及び底面には、縦断面略Ｌ字状の樹脂製ブラケットがボルト止めされ、ブラケットは、側部がシャシフレームの下方へ垂下した状態で、車両前後方向に沿って各シャシフレームに取り付けられる。遮音カバーは、それぞれ縦断面が略Ｕ字状である樹脂製の前部カバー、中間カバー及び後部カバーに３分割され、前部カバー、中間カバー及び後部カバーは、それぞれブラケットの側部にボルト止めされる。 Patent Literature 1 describes a mechanism for attaching a sound insulation cover to a truck. The engine is placed between the left and right chassis frames, and the sound insulation cover covers the engine from below. A resin bracket having a substantially L-shaped vertical cross section is bolted to the outer surface and bottom surface of each chassis frame. Attached to the frame. The sound insulation cover is divided into three resin-made front covers, intermediate covers, and rear covers each having a substantially U-shaped vertical cross section, and the front cover, intermediate cover, and rear cover are each bolted to the side of the bracket. be done.

特開２００４－３１４８１５号公報JP 2004-314815 A

車両の用途に応じたフレーム架装物（例えばクレーン装置など）を、騒音の発生源となる音源（例えばエンジンやモータなど）の上方に搭載する場合がある。フレーム架装物は、例えば左右のサイドフレームの車幅方向外側面に固定された板状の架装物ブラケットを介して、左右のサイドフレームに固定され支持される。フレーム架装物が重量物の場合には、板厚が厚い架装物ブラケットが用いられる。また、フレーム架装物の支持剛性を高めるため、架装物ブラケットによってサイドフレームを補強する場合もある。 In some cases, a frame mounted object (for example, a crane device, etc.) according to the application of the vehicle is mounted above a sound source (for example, an engine, a motor, etc.) that is a source of noise. The frame equipment is fixed to and supported by the left and right side frames via, for example, plate-like equipment brackets fixed to the vehicle width direction outer surfaces of the left and right side frames. If the frame mounting object is heavy, a mounting bracket having a thick plate thickness is used. Also, in some cases, the side frames are reinforced with mounting brackets in order to increase the support rigidity of the frame mounting.

このように、架装物ブラケットを介してフレーム架装物を取付ける構造では、左右のサイドフレームの車幅方向外側面間の距離が左右の架装物ブラケットの板厚分だけ実質的に増大する。このため、フレーム架装物の下方に配置される音源に対し、特許文献１のような遮音カバーを左右のカバーブラケットを介して取付けるためには、架装物ブラケットの板厚に応じた形状のカバーブラケットが必要となる。すなわち、架装物ブラケットの板厚の種類に応じた複数種類のカバーブラケットを用意する必要があり、コストの上昇を招く。 In this way, in the structure in which the frame attachment is attached via the attachment bracket, the distance between the vehicle width direction outer surfaces of the left and right side frames is substantially increased by the plate thickness of the left and right attachment brackets. . For this reason, in order to attach the sound insulation cover as in Patent Document 1 via the left and right cover brackets to the sound source located below the frame mounting, it is necessary to have a shape corresponding to the plate thickness of the mounting bracket. A cover bracket is required. That is, it is necessary to prepare a plurality of types of cover brackets corresponding to the types of plate thicknesses of mounting brackets, which leads to an increase in cost.

そこで本開示は、架装物ブラケットの板厚が異なる場合であっても、フレーム架装物の下方に配置される音源からの騒音を共通のカバーブラケットを用いて好適に抑制することが可能な車両の騒音カバー取付構造の提供を目的とする。 Therefore, according to the present disclosure, even if the mounting brackets have different plate thicknesses, it is possible to suitably suppress the noise from the sound source arranged below the frame mounting using a common cover bracket. An object of the present invention is to provide a vehicle noise cover mounting structure.

上記目的を達成すべく、本開示は、車幅方向の両側で車両前後方向に延びるサイドフレームに、騒音の発生源となる音源が支持され、音源の上方にフレーム架装物が配置され、サイドフレームの車幅方向外側面に架装物ブラケットの車体側連結板部が車幅方向外側から重なって固定され、架装物ブラケットにフレーム架装物が固定されて支持される車両の騒音カバー取付構造であって、板状のカバーブラケットと、板状スペーサと、騒音カバーとを備える。 In order to achieve the above object, the present disclosure supports a sound source that is a source of noise on side frames that extend in the vehicle front-rear direction on both sides in the vehicle width direction. Vehicle noise cover installation in which the vehicle body side connecting plate portion of the mounting bracket is overlapped and fixed to the vehicle width direction outer surface of the frame from the vehicle width direction outer side, and the frame mounting object is fixed and supported by the mounting bracket. A structure comprising a plate-like cover bracket, a plate-like spacer, and a noise cover.

カバーブラケットは、架装物ブラケットの車体側連結板部に車幅方向外側から重なって固定されるブラケット上部と、ブラケット上部から下方へ延びるブラケット下部とを有する。板状スペーサは、カバーブラケットのブラケット下部に車幅方向内側から重なる。騒音カバーは、板状スペーサに車幅方向内側から重なった状態でカバーブラケットに固定され、音源を少なくとも車幅方向外側から覆う。 The cover bracket has a bracket upper portion that overlaps and is fixed to the vehicle body side connecting plate portion of the mounting bracket from the outside in the vehicle width direction, and a bracket lower portion that extends downward from the bracket upper portion. The plate-shaped spacer overlaps the bracket lower portion of the cover bracket from the inside in the vehicle width direction. The noise cover is fixed to the cover bracket while overlapping the plate-shaped spacer from the inside in the vehicle width direction, and covers the sound source at least from the outside in the vehicle width direction.

上記構成では、例えば、左右のサイドフレームの車幅方向外側面に左右の架装物ブラケットの車体側連結板部がそれぞれ固定された車両に対して左右の騒音カバーを取付ける場合、左の騒音カバーを、左のカバーブラケット及び左の架装物ブラケットを介して左のサイドフレームに固定し、右の騒音カバーを、右のカバーブラケット及び右の架装物ブラケットを介して右のサイドフレームに取付ればよい。騒音カバーが左右に分割され、その各々が左右のサイドフレームに対して個別に固定されるので、架装物ブラケットの板厚が異なる場合であっても、同じカバーブラケットを用いて騒音カバーをサイドフレームに取付けることができる。 In the above configuration, for example, when mounting the left and right noise covers to a vehicle in which the vehicle body side connecting plate portions of the left and right mounting brackets are respectively fixed to the vehicle width direction outer surfaces of the left and right side frames, the left noise cover to the left side frame via the left cover bracket and left mounting bracket, and the right noise cover to the right side frame via the right cover bracket and right mounting bracket. All you have to do is The noise cover is divided into left and right parts, and each of them is fixed to the left and right side frames individually. Can be mounted on the frame.

また、フレーム架装物を搭載した車両に対して騒音カバーを取付ける場合には、カバーブラケットのブラケット上部を架装物ブラケットの車体側連結板部に車幅方向外側から重ねて固定し、板状スペーサをカバーブラケットのブラケット下部に車幅方向内側から重ね、騒音カバーを板状スペーサに車幅方向内側から重ねてカバーブラケットに固定する（架装物搭載車両のカバー取付状態）。一方、フレーム架装物を搭載しない車両に対して騒音カバーを取付ける場合には、カバーブラケットのブラケット上部をサイドフレームの車幅方向外側面に車幅方向外側から重ねて固定し、騒音カバーをカバーブラケットのブラケット下部に車幅方向内側から重ねて固定すればよい（架装物非搭載車両のカバー取付状態）。このように、架装物搭載車両では、サイドフレームと騒音カバーとの間に架装物ブラケット及び板状スペーサが介在するが、架装物非搭載車両では、サイドフレームと騒音カバーとの間に架装物ブラケット及び板状スペーサが介在しない。このため、架装物搭載車両と架装物非搭載車両とを比較すると、架装物搭載車両のカバーブラケットは、架装物ブラケットの車体側連結板部の板厚分だけ車幅方向外側に配置される（カバーブラケットが音源から離れる）が、架装物搭載車両ではカバーブラケットのブラケット下部と騒音カバーとの間に板状スペーサを介在させているので、板状スペーサの板厚分だけ騒音カバーを音源に近付けることができる。従って、音源から騒音カバーまでの車幅方向の距離（音源に対する騒音カバーの車幅方向の位置）を、架装物搭載車両と架装物非搭載車両で略同距離（略同位置）に設定することが可能となり、架装物非搭載車両での遮音効果を架装物搭載車両においても得ることができる。 Also, when installing a noise cover to a vehicle equipped with a frame attachment, the upper part of the bracket of the cover bracket is overlapped with the vehicle body side connection plate portion of the attachment bracket from the outside in the vehicle width direction and fixed to form a plate-like shape. The spacer is placed on the lower portion of the cover bracket from the inside in the vehicle width direction, and the noise cover is placed on the plate-shaped spacer from the inside in the vehicle width direction and fixed to the cover bracket (the cover mounting state of the vehicle with the mounted equipment). On the other hand, when installing a noise cover on a vehicle that does not have a frame attachment, the upper part of the cover bracket is overlapped with the outside surface of the side frame in the vehicle width direction from the outside in the vehicle width direction and fixed to cover the noise cover. It is sufficient to overlap the lower portion of the bracket from the inside in the vehicle width direction and fix it (in a state where the cover is attached to a vehicle without a mounted object). In this way, in a vehicle with a mounting object, the mounting bracket and the plate-shaped spacer are interposed between the side frame and the noise cover. Mounting brackets and plate spacers are not interposed. For this reason, when comparing a vehicle with mounted equipment and a vehicle without mounted equipment, the cover bracket of the vehicle with mounted equipment is extended outward in the vehicle width direction by the plate thickness of the body-side connecting plate portion of the mounted equipment bracket. (the cover bracket is separated from the sound source), but in vehicles with mounted equipment, a plate-like spacer is interposed between the lower part of the cover bracket and the noise cover, so the noise is reduced by the thickness of the plate-like spacer. The cover can be brought closer to the sound source. Therefore, the distance in the vehicle width direction from the sound source to the noise cover (the position of the noise cover in the vehicle width direction with respect to the sound source) is set to approximately the same distance (approximately the same position) for vehicles with mounted equipment and vehicles without mounted equipment. It is possible to obtain the sound insulation effect of the vehicle without the mounted object even in the vehicle with the mounted object.

また、搭載するフレーム架装物が異なり、架装物ブラケットの車体側連結板部の板厚も異なる場合には、架装物ブラケットの板厚に応じた板厚（使用する架装物ブラケットの車体側連結板部の板厚と略同じ板厚）の板状スペーサを用いればよい。これにより、架装物非搭載車両及び搭載するフレーム架装物が異なる複数種類の架装物搭載車両の何れにおいても、同等の遮音効果を得ることができる。 In addition, if the frame mounting object to be mounted is different and the plate thickness of the body side connection plate part of the mounting object bracket is also different, the plate thickness according to the plate thickness of the mounting object bracket (the thickness of the mounting object bracket to be used) A plate-like spacer having a plate thickness substantially the same as the plate thickness of the vehicle body side connecting plate portion may be used. As a result, the same sound insulation effect can be obtained in any of a vehicle without a mounted object and a vehicle with a plurality of types of mounted objects having different frame mounted objects.

本開示の騒音カバー取付構造によれば、架装物ブラケットの板厚が異なる場合であっても、フレーム架装物の下方に配置される音源からの騒音を共通のカバーブラケットを用いて好適に抑制することができる。 According to the noise cover mounting structure of the present disclosure, even if the mounting brackets have different plate thicknesses, the noise from the sound source arranged below the frame mounting can be suitably suppressed by using a common cover bracket. can be suppressed.

本発明の一実施形態に係るカバーブラケット取付構造を模式的に示す側面図である。1 is a side view schematically showing a cover bracket mounting structure according to one embodiment of the present invention; FIG. 図２のII－II矢視断面図である。FIG. 3 is a cross-sectional view taken along line II-II of FIG. 2;

以下、本発明の一実施形態について図面を参照して説明する。なお、以下の説明において、前後方向は車両の前後方向を意味し、左右方向は車両前方を向いた状態での左右方向を意味する。また、各部材に関する方向は、車両に組付けられた状態での方向である。 An embodiment of the present invention will be described below with reference to the drawings. In the following description, the front-rear direction means the front-rear direction of the vehicle, and the left-right direction means the left-right direction when the vehicle faces forward. Also, the direction of each member is the direction when it is assembled to the vehicle.

図１及び図２に示すように、車両の車体フレーム１は、車幅方向の両側で車両前後方向に延びる左右のサイドフレーム２と、車幅方向に延びて左右のサイドフレーム２同士を連結する複数のクロスフレーム（図示省略）とを備える。サイドフレーム２は、車幅方向内側に開口するＵ状断面であり、略鉛直に起立して車両前後方向に延びるサイドフレーム側板部３と、サイドフレーム側板部３の上端縁及び下端縁からそれぞれ車幅方向内側へ延びて相対向するサイドフレーム上板部４及びサイドフレーム下板部５とを一体的に有する。サイドフレーム側板部３の車幅方向外側面は、サイドフレーム２の車幅方向外側面６を構成する。 As shown in FIGS. 1 and 2, a vehicle body frame 1 includes left and right side frames 2 extending in the vehicle front-rear direction on both sides in the vehicle width direction and connecting the left and right side frames 2 extending in the vehicle width direction. and a plurality of cross frames (not shown). The side frame 2 has a U-shaped cross section that opens inward in the vehicle width direction, and includes a side frame side plate portion 3 that stands substantially vertically and extends in the vehicle front-rear direction. It integrally has a side frame upper plate portion 4 and a side frame lower plate portion 5 extending inward in the width direction and opposed to each other. The vehicle width direction outer surface of the side frame side plate portion 3 constitutes the vehicle width direction outer surface 6 of the side frame 2 .

左右のサイドフレーム２の間には、騒音の発生源となる音源７が配置される。音源７は、例えばエンジン、モータ、トランスミッション、排気管などであり、支持部材（図示省略）を介して車体フレーム１に固定され支持される。 A sound source 7 that is a source of noise is arranged between the left and right side frames 2 . The sound source 7 is, for example, an engine, a motor, a transmission, an exhaust pipe, etc., and is fixed and supported by the vehicle body frame 1 via a support member (not shown).

音源７の鉛直上方には、クレーン装置等のフレーム架装物８が配置され、左右のサイドフレーム２には、左右の架装物ブラケット９がそれぞれ取付けられる。架装物ブラケット９は、板状の金属部材であり、フレーム架装物８が固定される架装物支持板部１０と、架装物支持板部１０から下方へ延びる車体側連結板部１１と、車体側連結板部１１の下端縁部から車幅方向内側へ延びる補強板部１２とを一体的に有する。車体側連結板部１１をサイドフレーム２の外側面６に車幅方向外側から重ね、ボルト及びナット（図示省略）によって車体側連結板部１１をサイドフレーム側板部３に車幅方向から締結することにより、架装物ブラケット９がサイドフレーム２に固定され、補強板部１２がサイドフレーム下板部５に下方から重なる（架装物ブラケット取付状態）。 A frame mounting object 8 such as a crane device is arranged vertically above the sound source 7, and left and right mounting object brackets 9 are attached to the left and right side frames 2, respectively. The mounted object bracket 9 is a plate-like metal member, and includes a mounted object support plate portion 10 to which the frame mounted object 8 is fixed, and a vehicle body side connecting plate portion 11 extending downward from the mounted object support plate portion 10 . and a reinforcing plate portion 12 extending inward in the vehicle width direction from the lower edge portion of the vehicle body side connecting plate portion 11 . The vehicle body side connecting plate portion 11 is superimposed on the outer side surface 6 of the side frame 2 from the outside in the vehicle width direction, and the vehicle body side connecting plate portion 11 is fastened to the side frame side plate portion 3 from the vehicle width direction using bolts and nuts (not shown). Thus, the mounting object bracket 9 is fixed to the side frame 2, and the reinforcing plate portion 12 overlaps the side frame lower plate portion 5 from below (mounting object bracket attached state).

架装物ブラケット取付状態では、車体側連結板部１１及び補強板部１２によってサイドフレーム側板部３及びサイドフレーム下板部５の板厚が実質的に増大し、重量物であるフレーム架装物８からの荷重に対する車体フレーム１の支持剛性が高まる。すなわち、本実施形態の架装物ブラケット９は、車体フレーム１との間に介在してフレーム架装物８を支持する機能と、車体フレーム１を補強する機能とを有する。なお、ボルト及びナット以外によって架装物ブラケット９をサイドフレーム２に固定してもよい。また、車体フレーム１を補強する機能を有さない架装物ブラケットであってもよい。 In the mounted state with the mounted object bracket, the thickness of the side frame side plate portion 3 and the side frame lower plate portion 5 is substantially increased by the vehicle body side connecting plate portion 11 and the reinforcing plate portion 12, and the frame mounted object, which is a heavy object, is substantially increased in thickness. The support rigidity of the vehicle body frame 1 against the load from 8 is increased. In other words, the mounting object bracket 9 of the present embodiment has a function of supporting the frame mounting object 8 by interposing it with the vehicle body frame 1 and a function of reinforcing the vehicle body frame 1 . Note that the mounting bracket 9 may be fixed to the side frame 2 by means other than bolts and nuts. Also, the mounting bracket may be an attachment bracket that does not have a function to reinforce the body frame 1 .

左右のサイドフレーム２には、音源７からの騒音を低減する（遮音する）ための左右の騒音カバー１３Ｌ，１３Ｒが左右のカバーブラケット１４Ｌ，１４Ｒを介してそれぞれ取付けられる。本実施形態では、車両の左右両側において、騒音カバー１３Ｌ，１３Ｒの前後位置が架装物ブラケット９の前後位置と重なり、カバーブラケット１４Ｌ，１４Ｒをサイドフレーム２に直接取付けることが難しい配置であるため、架装物ブラケット９を介してカバーブラケット１４Ｌ，１４Ｒをサイドフレーム２に固定している。また、左右のカバーブラケット１４Ｌ，１４Ｒは、上下方向の長さに対して前後幅が短い帯板形状であり、車両前後方向に離間する複数個所（本実施形態では２箇所）にそれぞれ配置される。 Left and right noise covers 13L and 13R for reducing (insulating) noise from the sound source 7 are attached to the left and right side frames 2 via left and right cover brackets 14L and 14R, respectively. In this embodiment, the front and rear positions of the noise covers 13L and 13R overlap the front and rear positions of the mounting bracket 9 on both the left and right sides of the vehicle, making it difficult to directly attach the cover brackets 14L and 14R to the side frames 2. , the cover brackets 14L and 14R are fixed to the side frame 2 via the mounting bracket 9. As shown in FIG. The left and right cover brackets 14L and 14R have a band plate shape with a short front-rear width relative to the length in the vertical direction, and are arranged at a plurality of locations (two locations in this embodiment) spaced apart in the vehicle front-rear direction. .

左右のカバーブラケット１４Ｌ，１４Ｒは、架装物ブラケット９の車体側連結板部１１に車幅方向外側から重なるブラケット上部１５と、ブラケット上部１５から下方へ延びるブラケット下部１６とをそれぞれ有する。サイドフレーム２のサイドフレーム側板部３と、架装物ブラケット９の車体側連結板部１１と、カバーブラケット１４Ｌ，１４Ｒのブラケット上部１５とには、これらが重なった状態で車幅方向に貫通するボルト挿通孔１７が形成され、ボルト挿通孔１７を挿通するボルト１８にナット１９を螺合して締付けることにより、ブラケット上部１５が架装物ブラケット９及びサイドフレーム２に固定される。 The left and right cover brackets 14L and 14R each have a bracket upper portion 15 overlapping the vehicle body side connecting plate portion 11 of the mounting bracket 9 from the outside in the vehicle width direction, and a bracket lower portion 16 extending downward from the bracket upper portion 15 . The side frame side plate portion 3 of the side frame 2, the vehicle body side connecting plate portion 11 of the mounting bracket 9, and the bracket upper portion 15 of the cover brackets 14L and 14R are penetrated in the vehicle width direction in a state in which they overlap each other. A bolt insertion hole 17 is formed, and a nut 19 is screwed onto a bolt 18 inserted through the bolt insertion hole 17 to fix the bracket upper portion 15 to the mounting bracket 9 and the side frame 2 .

左右のカバーブラケット１４Ｌ，１４Ｒのブラケット下部１６の車幅方向内側面には、左右の板状スペーサ２０Ｌ，２０Ｒが車幅方向内側からそれぞれ重ねられる。板状スペーサ２０Ｌ，２０Ｒは、架装物ブラケット９の車体側連結板部１１の板厚と略等しい板厚を有し、且つカバーブラケット１４Ｌ，１４Ｒのブラケット下部１６の前後幅と略等しい前後幅を有する帯板形状である。 Left and right plate-like spacers 20L, 20R are respectively overlapped from the inside in the vehicle width direction on the vehicle width direction inside surfaces of the bracket lower portions 16 of the left and right cover brackets 14L, 14R. The plate-like spacers 20L, 20R have a plate thickness substantially equal to the plate thickness of the vehicle-body-side connecting plate portion 11 of the mounting bracket 9, and a front-rear width substantially equal to the front-rear width of the bracket lower portion 16 of the cover brackets 14L, 14R. It is a strip shape with

左右の騒音カバー１３Ｌ，１３Ｒは、左右の板状スペーサ２０Ｌ，２０Ｒに車幅方向内側から重なった状態で、左右のカバーブラケット１４Ｌ，１４Ｒのブラケット下部１６にそれぞれ固定される。すなわち、ブラケット下部１６と騒音カバー１３Ｌ，１３Ｒとの間に板状スペーサ２０Ｌ，２０Ｒが挟まれた状態で、騒音カバー１３Ｌ，１３Ｒがブラケット下部１６に固定される。騒音カバー１３Ｌ，１３Ｒの固定は、例えばブラケット下部１６と板状スペーサ２０Ｌ，２０Ｒと騒音カバー１３Ｌ，１３Ｒとを貫通するボルト挿通孔を形成し、ボルト挿通孔を挿通するボルトにナットを螺合して締付けることによって行う。なお、騒音カバー１３Ｌ，１３Ｒの固定方法はこれに限定されず、他の方法を用いてもよい。 The left and right noise covers 13L and 13R are fixed to the bracket lower portions 16 of the left and right cover brackets 14L and 14R, respectively, while overlapping the left and right plate-like spacers 20L and 20R from the inside in the vehicle width direction. That is, the noise covers 13L and 13R are fixed to the bracket lower portion 16 with the plate-like spacers 20L and 20R sandwiched between the bracket lower portion 16 and the noise covers 13L and 13R. The noise covers 13L and 13R are fixed by, for example, forming bolt insertion holes penetrating the bracket lower portion 16, the plate-like spacers 20L and 20R and the noise covers 13L and 13R, and screwing nuts onto the bolts that are inserted through the bolt insertion holes. by tightening. Note that the method of fixing the noise covers 13L and 13R is not limited to this, and other methods may be used.

本実施形態の左右の騒音カバー１３Ｌ，１３Ｒは、ブラケット下部１６に沿って上下方向に延びる平板状のカバー上部２１と、カバー上部２１の下端縁部から車幅方向内側へＬ状に曲折して斜め下方へ延びる平板状のカバー下部２２とを一体的に有する。Ｌ状に曲折を有する曲折板状の左右の騒音カバー１３Ｌ，１３Ｒは、音源７を車幅方向外側から覆うと共に、音源７の下方を部分的に覆う。 The left and right noise covers 13L and 13R of the present embodiment are composed of a flat cover upper portion 21 extending vertically along the bracket lower portion 16, and an L-shaped bent from the lower end edge portion of the cover upper portion 21 toward the vehicle width direction inner side. It integrally has a flat cover lower portion 22 extending obliquely downward. Left and right noise covers 13L and 13R in the shape of L-shaped bent plates cover the sound source 7 from the outside in the vehicle width direction and partially cover the lower side of the sound source 7 .

騒音カバー１３Ｌ，１３Ｒの形状は左右で異なり、右の騒音カバー１３Ｒのカバー下部２２の方が左の騒音カバー１３Ｌのカバー下部２２よりも車幅方向内側へ長く延びている。左右の騒音カバー１３Ｌ，１３Ｒの形状の相違に対応して、カバー下部２２が短い左のブラケット下部１６及び板状スペーサ２０Ｌは、カバー上部２１のみに沿うように平板状に形成され、カバー下部２２が長い右のブラケット下部１６及び板状スペーサ２０Ｒは、カバー上部２１及びカバー下部２２に沿うように曲折板状に形成されている。 The noise covers 13L and 13R have different shapes on the left and right, and the cover lower portion 22 of the right noise cover 13R extends longer inward in the vehicle width direction than the cover lower portion 22 of the left noise cover 13L. Corresponding to the difference in shape between the left and right noise covers 13L and 13R, the left bracket lower portion 16 and the plate-like spacer 20L having a short cover lower portion 22 are formed in a flat plate shape along only the cover upper portion 21, and the cover lower portion 22 The right bracket lower portion 16 and the plate-like spacer 20R having a longer length are formed in a bent plate shape along the cover upper portion 21 and the cover lower portion 22 .

左右の騒音カバー１３Ｌ，１３Ｒを取付ける場合、左右のそれぞれにおいて、カバーブラケット１４Ｌ，１４Ｒのブラケット上部１５を架装物ブラケット９の車体側連結板部１１に車幅方向外側から重ね、ボルト挿通孔１７にボルト１８を挿通し、ボルト１８及びナット１９によってカバーブラケット１４Ｌ，１４Ｒをサイドフレーム２及び架装物ブラケット９に締結固定し、騒音カバー１３Ｌ，１３Ｒとカバーブラケット１４Ｌ，１４Ｒとの間に板状スペーサ２０Ｌ，２０Ｒを介在させた状態で、騒音カバー１３Ｌ，１３Ｒをカバーブラケット１４Ｌ，１４Ｒに固定する（架装物搭載車両のカバー取付状態）。このように騒音カバー１３Ｌ，１３Ｒが左右に分割され、その各々が左右のサイドフレーム２に対して個別に固定されるので、架装物ブラケット９の板厚が異なる場合であっても、同じカバーブラケット１４Ｌ，１４Ｒを用いて騒音カバー１３Ｌ，１３Ｒをサイドフレーム２に取付けることができる。 When mounting the left and right noise covers 13L and 13R, the bracket upper portions 15 of the cover brackets 14L and 14R are overlapped with the vehicle body side connecting plate portion 11 of the mounting bracket 9 from the outside in the vehicle width direction, and the bolt insertion holes 17 are fitted. The cover brackets 14L and 14R are fastened and fixed to the side frame 2 and the mounting bracket 9 by the bolts 18 and nuts 19, and plate-shaped gaps are provided between the noise covers 13L and 13R and the cover brackets 14L and 14R. The noise covers 13L and 13R are fixed to the cover brackets 14L and 14R with the spacers 20L and 20R interposed therebetween (the cover mounting state of the vehicle with the mounted equipment). In this way, the noise covers 13L and 13R are divided into left and right, and each of them is individually fixed to the left and right side frames 2. Therefore, even if the mounting bracket 9 has a different thickness, the same cover can be used. The noise covers 13L, 13R can be attached to the side frames 2 using the brackets 14L, 14R.

フレーム架装物８を搭載しない車両（サイドフレーム２に架装物ブラケット９を取付けない車両）に対して左右の騒音カバー１３Ｌ，１３Ｒを取付ける場合には、左右のカバーブラケット１４Ｌ，１４Ｒのブラケット上部１５を左右のサイドフレーム２の車幅方向外側面６にそれぞれ重ね、架装物搭載車両の場合と同様に、ボルト挿通孔１７にボルト１８を挿通し、ボルト１８及びナット１９によってブラケット上部１５をサイドフレーム２に締結固定し、左右の騒音カバー１３Ｌ，１３Ｒを左右のカバーブラケット１４Ｌ，１４Ｒのブラケット下部１６に車幅方向内側からそれぞれ重ねて固定する（架装物非搭載車両のカバー取付状態）。 When attaching the left and right noise covers 13L and 13R to a vehicle that does not mount the frame mounting object 8 (vehicle that does not have the mounting object bracket 9 attached to the side frame 2), the left and right cover brackets 14L and 14R must 15 are overlapped on the vehicle width direction outer side surfaces 6 of the left and right side frames 2, and the bolts 18 are inserted into the bolt insertion holes 17 and the bracket upper portions 15 are fastened with the bolts 18 and nuts 19 in the same manner as in the case of the vehicle equipped with the mounted equipment. The left and right noise covers 13L and 13R are fixed to the side frames 2, and the left and right noise covers 13L and 13R are overlapped and fixed to the bracket lower portions 16 of the left and right cover brackets 14L and 14R from the inside in the vehicle width direction. .

架装物搭載車両では、サイドフレーム２と騒音カバー１３Ｌ，１３Ｒとの間に架装物ブラケット９及び板状スペーサ２０Ｌ，２０Ｒが介在するが、架装物非搭載車両では、サイドフレーム２と騒音カバー１３Ｌ，１３Ｒとの間に架装物ブラケット９及び板状スペーサ２０Ｌ，２０Ｒが介在しない。このため、架装物搭載車両と架装物非搭載車両とを比較すると、架装物搭載車両の左右のカバーブラケット１４Ｌ，１４Ｒは、架装物ブラケット９の車体側連結板部１１の板厚分だけ車幅方向外側に配置される（カバーブラケット１４Ｌ，１４Ｒが音源７から離れる）が、架装物搭載車両ではカバーブラケット１４Ｌ，１４Ｒのブラケット下部１６と騒音カバー１３Ｌ，１３Ｒとの間に板状スペーサ２０Ｌ，２０Ｒを介在させているので、板状スペーサ２０Ｌ，２０Ｒの板厚分だけ騒音カバー１３Ｌ，１３Ｒが音源７に近付く。板状スペーサ２０Ｌ，２０Ｒの板厚は、架装物ブラケット９の車体側連結板部１１の板厚と略等しいので、音源７から左右の騒音カバー１３Ｌ，１３Ｒまでの車幅方向の距離（音源７に対する左右の騒音カバー１３Ｌ，１３Ｒの車幅方向の位置）を、架装物搭載車両と架装物非搭載車両で略同距離（略同位置）に設定することができ、架装物非搭載車両での遮音効果を架装物非搭載車両においても得ることができる。 In a vehicle equipped with a vehicle mounting, the mounting bracket 9 and the plate-shaped spacers 20L, 20R are interposed between the side frame 2 and the noise covers 13L, 13R. The mounting bracket 9 and the plate-like spacers 20L, 20R are not interposed between the covers 13L, 13R. For this reason, when comparing a vehicle with a mounted object and a vehicle without a mounted object, the left and right cover brackets 14L and 14R of the vehicle with the mounted object have a thickness of the body-side connecting plate portion 11 of the mounted object bracket 9. (the cover brackets 14L and 14R are separated from the sound source 7), but in a vehicle equipped with a bodywork, the plate between the bracket lower portion 16 of the cover brackets 14L and 14R and the noise covers 13L and 13R. Since the spacers 20L and 20R are interposed, the noise covers 13L and 13R approach the sound source 7 by the thickness of the spacers 20L and 20R. Since the thickness of the plate spacers 20L and 20R is substantially equal to the thickness of the vehicle body side connection plate portion 11 of the mounting bracket 9, the distance from the sound source 7 to the left and right noise covers 13L and 13R in the vehicle width direction (the sound source The positions of the left and right noise covers 13L and 13R in the vehicle width direction with respect to 7) can be set at substantially the same distance (substantially the same position) for the vehicle with the mounted object and the vehicle without the mounted object. The sound insulation effect of the mounted vehicle can also be obtained in the non-equipped vehicle.

また、搭載するフレーム架装物８が異なり、架装物ブラケット９の車体側連結板部１１の板厚も異なる場合には、架装物ブラケット９の板厚に応じた板厚（使用する架装物ブラケット９の車体側連結板部１１の板厚と略同じ板厚）の板状スペーサ２０Ｌ，２０Ｒを用いればよい。これにより、架装物非搭載車両及び搭載するフレーム架装物８が異なる複数種類の架装物搭載車両の何れにおいても、同等の遮音効果を得ることができる。 In addition, when the frame mounting object 8 to be mounted is different and the plate thickness of the vehicle body side connecting plate portion 11 of the mounting object bracket 9 is also different, the plate thickness according to the plate thickness of the mounting object bracket 9 (the frame to be used) The plate-like spacers 20L and 20R having a plate thickness substantially the same as the plate thickness of the vehicle-body-side connecting plate portion 11 of the accessory bracket 9 may be used. As a result, the same sound insulation effect can be obtained in any of a vehicle without a mounting object and a vehicle with a plurality of types of mounted mounting objects having different frame mounting objects 8 to be mounted.

以上、本発明について、上記実施形態に基づいて説明を行ったが、本発明は上記実施形態の内容に限定されるものではなく、当然に本発明を逸脱しない範囲で適宜変更が可能である。すなわち、この実施形態に基づいて当業者等によりなされる他の実施形態、実施例および運用技術等は全て本発明の範疇に含まれることは勿論である。 Although the present invention has been described above based on the above embodiments, the present invention is not limited to the contents of the above embodiments, and can be appropriately modified without departing from the scope of the present invention. In other words, all other embodiments, examples, operation techniques, etc. made by those skilled in the art based on this embodiment are naturally included in the scope of the present invention.

例えば、上記実施形態では、左右の騒音カバー１３Ｌ，１３Ｒの先端部の間が車幅方向に離間して左右の騒音カバー１３Ｌ，１３Ｒの間が空き、騒音カバー１３Ｌ，１３Ｒが音源７の下方を部分的に覆う形態を説明したが、左右の騒音カバーの先端部同士が上下に重なって音源７の下方全域を覆うように左右の騒音カバーを構成してもよい。 For example, in the above-described embodiment, the tips of the left and right noise covers 13L, 13R are spaced apart in the vehicle width direction, leaving a space between the left and right noise covers 13L, 13R, so that the noise covers 13L, 13R move below the sound source 7. Although the form of partial covering has been described, the left and right noise covers may be configured such that the tip portions of the left and right noise covers overlap vertically to cover the entire area below the sound source 7 .

また、上記実施形態では、車幅方向の左右両側において、架装物ブラケット９の車体側連結板部１１を介して騒音カバー１３Ｌ，１３Ｒを車体フレーム１に取付ける形態例について説明したが、本発明はこれに限定されず、左右の一側のみにおいて、架装物ブラケット９の車体側連結板部１１を介して騒音カバーを車体フレーム１に取付ける形態であってもよい。 Further, in the above-described embodiment, an example of mounting the noise covers 13L and 13R to the vehicle body frame 1 via the vehicle body side connecting plate portions 11 of the mounting bracket 9 on both left and right sides in the vehicle width direction has been described. is not limited to this, and the noise cover may be attached to the vehicle body frame 1 via the vehicle body side connecting plate portion 11 of the mounting bracket 9 only on one of the left and right sides.

本発明は、フレーム架装物が搭載される車両に広く適用することができる。 INDUSTRIAL APPLICABILITY The present invention can be widely applied to vehicles on which frame mountings are mounted.

１：車体フレーム
２：サイドフレーム
３：サイドフレーム側板部
４：サイドフレーム上板部
５：サイドフレーム下板部
６：サイドフレームの車幅方向外側面
７：音源
８：フレーム架装物
９：架装物ブラケット
１０：架装物支持板部
１１：車体側連結板部
１２：補強板部
１３Ｌ，１３Ｒ：左右の騒音カバー
１４Ｌ，１４Ｒ：左右のカバーブラケット
１５：ブラケット上部
１６：ブラケット下部
１７：ボルト挿通孔
１８：ボルト
１９：ナット
２０Ｌ，２０Ｒ：左右の板状スペーサ
２１：カバー上部
２２：カバー下部 1: Body frame 2: Side frame 3: Side frame side plate portion 4: Side frame upper plate portion 5: Side frame lower plate portion 6: Outer surface of side frame in vehicle width direction 7: Sound source 8: Frame attachment 9: Mounting Equipment bracket 10: Mounting support plate portion 11: Vehicle body side connecting plate portion 12: Reinforcing plate portion 13L, 13R: Left and right noise covers 14L, 14R: Left and right cover brackets 15: Bracket upper portion 16: Bracket lower portion 17: Bolt Insertion hole 18: bolt 19: nut 20L, 20R: left and right plate-like spacers 21: upper cover 22: lower cover

Claims (1)

車幅方向の両側で車両前後方向に延びるサイドフレームに、騒音の発生源となる音源が支持され、前記音源の上方にフレーム架装物が配置され、前記サイドフレームの車幅方向外側面に架装物ブラケットの車体側連結板部が車幅方向外側から重なって固定され、前記架装物ブラケットに前記フレーム架装物が固定されて支持される車両の騒音カバー取付構造であって、
前記架装物ブラケットの前記車体側連結板部に車幅方向外側から重なって固定されるブラケット上部と、前記ブラケット上部から下方へ延びるブラケット下部とを有する板状のカバーブラケットと、
前記カバーブラケットの前記ブラケット下部に車幅方向内側から重なる板状スペーサと、
前記板状スペーサに車幅方向内側から重なった状態で前記カバーブラケットに固定され、前記音源を少なくとも車幅方向外側から覆う騒音カバーと、を備える
ことを特徴とする車両の騒音カバー取付構造。 Side frames that extend in the longitudinal direction of the vehicle on both sides in the vehicle width direction support a sound source that is a source of noise, and a frame attachment is arranged above the sound source, and is mounted on the outer surface of the side frame in the vehicle width direction. A noise cover mounting structure for a vehicle in which a vehicle body side connection plate portion of an equipment bracket is overlapped and fixed from the vehicle width direction outer side, and the frame equipment is fixed and supported by the equipment bracket,
a plate-shaped cover bracket having a bracket upper portion that overlaps and is fixed to the vehicle body side connecting plate portion of the mounting bracket from the vehicle width direction outer side, and a bracket lower portion that extends downward from the bracket upper portion;
a plate-like spacer that overlaps the lower portion of the bracket of the cover bracket from the inside in the vehicle width direction;
A noise cover mounting structure for a vehicle, comprising: a noise cover fixed to the cover bracket while overlapping the plate-shaped spacer from the inside in the vehicle width direction, and covering the sound source at least from the outside in the vehicle width direction.
JP2021204042A 2021-12-16 2021-12-16 Vehicle noise cover mounting structure Active JP7205788B1 (en)

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JP2021204042A JP7205788B1 (en) 2021-12-16 2021-12-16 Vehicle noise cover mounting structure
PCT/JP2022/033063 WO2023112399A1 (en) 2021-12-16 2022-09-02 Structure for installing sound deadening cover in vehicle

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Citations (4)

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JP2004314815A (en) 2003-04-17 2004-11-11 Fuso Engineering Corp Noise insulation cover assembling mechanism
JP2005186825A (en) 2003-12-26 2005-07-14 Isuzu Motors Ltd Soundproof structure of vehicular engine
JP6083501B2 (en) 2012-10-01 2017-02-22 株式会社リコー Sheet conveying apparatus, sheet discharging apparatus, and image forming apparatus
US10214159B1 (en) 2017-09-29 2019-02-26 Hyundai Motor Company Engine compartment soundproof cover device of cab-over truck

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Publication number Priority date Publication date Assignee Title
JPH0683501U (en) * 1993-05-13 1994-11-29 日産ディーゼル工業株式会社 Vehicle cover
JP3546639B2 (en) * 1997-03-14 2004-07-28 三菱ふそうトラック・バス株式会社 Sound insulation structure for vehicles with luggage carrier
JP2013028310A (en) * 2011-07-29 2013-02-07 Daimler Ag Vehicular soundproof cover
JP6218534B2 (en) * 2013-09-30 2017-10-25 ダイハツ工業株式会社 External noise reduction structure for cab-over vehicles

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
JP2004314815A (en) 2003-04-17 2004-11-11 Fuso Engineering Corp Noise insulation cover assembling mechanism
JP2005186825A (en) 2003-12-26 2005-07-14 Isuzu Motors Ltd Soundproof structure of vehicular engine
JP6083501B2 (en) 2012-10-01 2017-02-22 株式会社リコー Sheet conveying apparatus, sheet discharging apparatus, and image forming apparatus
US10214159B1 (en) 2017-09-29 2019-02-26 Hyundai Motor Company Engine compartment soundproof cover device of cab-over truck

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