JP2010221877A - Tire storage structure - Google Patents

Tire storage structure Download PDF

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JP2010221877A
JP2010221877A JP2009071920A JP2009071920A JP2010221877A JP 2010221877 A JP2010221877 A JP 2010221877A JP 2009071920 A JP2009071920 A JP 2009071920A JP 2009071920 A JP2009071920 A JP 2009071920A JP 2010221877 A JP2010221877 A JP 2010221877A
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tire
storage structure
tire storage
cross member
vehicle
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Japanese (ja)
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Hideo Kondo
秀雄 近藤
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Toyota Motor Corp
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Toyota Motor Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a tire storage structure capable of reducing noise due to vibrations of a tire storage part while a vehicle is traveling. <P>SOLUTION: In this tire storage structure 1, a tire T and a floor cross member 5 are separated from a floor panel 2 constituting a tire storage part 3, and therefore, an resonance frequency of the floor panel 2 can be removed from a low frequency band while a vehicle is traveling. As a result, resonance of the floor panel 2 can be prevented from being excited due to pitching resonance or bounce resonance of the tire T while the vehicle is traveling. Furthermore, in the tire storage structure 1, the floor cross member 5 is hooked between a pair of side members 4, 4, and therefore, the tire T can be applied to the side members 4 as a mass. As a result, vibrations of the side members 4 can be restrained while the vehicle is traveling, so as to restrain the vibrations of the floor panel 2 caused by the vibrations of the side members 4. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、車両にタイヤを収納するためのタイヤ収納構造に関する。   The present invention relates to a tire storage structure for storing tires in a vehicle.

従来のタイヤ収納構造として、リヤフロアパネルの下側にタイヤ収容部が設けられており、タイヤが取り付けられる補強メンバ等のタイヤ保持部がリヤフロアパネルに固定されたものが知られている（例えば、特許文献１参照）。   As a conventional tire storage structure, a tire storage portion is provided on the lower side of a rear floor panel, and a tire holding portion such as a reinforcing member to which a tire is attached is fixed to the rear floor panel (for example, patents) Reference 1).

特開平１０−１０７３号公報Japanese Patent Laid-Open No. 10-1073

しかしながら、上述したようなタイヤ収納構造にあっては、補強メンバ等のタイヤ保持部がリヤフロアパネルに固定されているため、車両走行時にタイヤのピッチング共振やバウンス共振等によってリヤフロアパネルの共振が励起され、その結果、タイヤ収容部の振動による騒音が発生するおそれがある。   However, in the tire storage structure as described above, since the tire holding portion such as the reinforcing member is fixed to the rear floor panel, the resonance of the rear floor panel is excited by the pitching resonance or bounce resonance of the tire when the vehicle is traveling. As a result, there is a possibility that noise due to vibration of the tire housing portion is generated.

本発明は、このような事情に鑑みてなされたものであり、車両走行時におけるタイヤ収容部の振動による騒音を低減することができるタイヤ収納構造を提供することを目的とする。   The present invention has been made in view of such circumstances, and an object of the present invention is to provide a tire storage structure that can reduce noise caused by vibration of a tire storage portion during vehicle travel.

上記目的を達成するために、本発明に係るタイヤ収納構造は、車両にタイヤを収納するためのタイヤ収納構造であって、タイヤを保持するタイヤ保持部と、タイヤを収容する収容部と、を備え、タイヤ及びタイヤ保持部は、タイヤ収容部から離間していることを特徴とする。   In order to achieve the above object, a tire storage structure according to the present invention is a tire storage structure for storing a tire in a vehicle, and includes a tire holding portion that holds the tire and a storage portion that stores the tire. The tire and the tire holding part are separated from the tire accommodating part.

このタイヤ収納構造においては、タイヤ及びタイヤ保持部がタイヤ収容部から離間しているため、車両走行時にタイヤのピッチング共振やバウンス共振等によってタイヤ収容部の共振が励起されるのを防止することができる。従って、このタイヤ収納構造によれば、車両走行時におけるタイヤ収容部の振動による騒音を低減することが可能となる。   In this tire storage structure, since the tire and the tire holding part are separated from the tire storage part, it is possible to prevent the resonance of the tire storage part from being excited by the pitching resonance or bounce resonance of the tire when the vehicle is running. it can. Therefore, according to this tire storage structure, it is possible to reduce noise due to vibration of the tire storage portion during vehicle travel.

また、タイヤ保持部は、タイヤが取り付けられるフロアクロスメンバであり、タイヤ収容部は、フロアパネルに設けられた凹部であることが好ましい。この構成によれば、タイヤ保持部及びタイヤ収容部を簡易且つコンパクトに構成することができる。   Moreover, it is preferable that a tire holding | maintenance part is a floor cross member to which a tire is attached, and a tire accommodating part is a recessed part provided in the floor panel. According to this structure, a tire holding part and a tire accommodating part can be comprised simply and compactly.

このとき、フロアクロスメンバは、一対のサイドメンバ間に掛け渡されていることが好ましい。この構成によれば、サイドメンバにタイヤがマスとして作用するので、車両走行時におけるサイドメンバの振動を抑制し、延いては、サイドメンバの振動に伴うタイヤ収容部の振動を抑制することができる。   At this time, it is preferable that the floor cross member is spanned between the pair of side members. According to this configuration, since the tire acts as a mass on the side member, it is possible to suppress the vibration of the side member when the vehicle travels, and thus to suppress the vibration of the tire housing portion accompanying the vibration of the side member. .

本発明に係るタイヤ収納構造は、サイドメンバ間に掛け渡されたフロアクロスメンバに制御マスとしてタイヤを載置したものである。このタイヤ収納構造によれば、車両走行時におけるタイヤ収容部の振動による騒音を低減することが可能となる。   The tire storage structure according to the present invention is such that a tire is placed as a control mass on a floor cross member spanned between side members. According to this tire storage structure, it is possible to reduce noise due to vibration of the tire storage portion during vehicle travel.

本発明によれば、車両走行時におけるタイヤ収容部の振動による騒音を低減することができる。   ADVANTAGE OF THE INVENTION According to this invention, the noise by the vibration of a tire accommodating part at the time of vehicle travel can be reduced.

本発明に係るタイヤ収納構造の一実施形態の斜視図である。1 is a perspective view of an embodiment of a tire storage structure according to the present invention. 図１のタイヤ収納構造の平面図である。It is a top view of the tire storage structure of FIG. 図２のIII−III線に沿っての断面図である。It is sectional drawing along the III-III line of FIG. 車両走行時における従来のタイヤ収納構造の振動状態を示す断面図である。It is sectional drawing which shows the vibration state of the conventional tire storage structure at the time of vehicle travel. 本発明に係るタイヤ収納構造の他の実施形態の断面図である。It is sectional drawing of other embodiment of the tire storage structure which concerns on this invention.

以下、本発明の好適な実施形態について、図面を参照して詳細に説明する。なお、各図において同一又は相当部分には同一符号を付し、重複する説明を省略する。   DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In addition, in each figure, the same code | symbol is attached | subjected to the same or equivalent part, and the overlapping description is abbreviate | omitted.

図１は、本発明に係るタイヤ収納構造の一実施形態の斜視図であり、図２は、図１のタイヤ収納構造の平面図である。図１，２に示されるように、タイヤ収納構造１は、自動車（車両）１０のラゲージルームＲ下部にスペアタイヤＴを収納するためのものである。タイヤ収納構造１においては、リヤフロアパネル２に設けられた凹部２ａが、タイヤＴを収容するタイヤ収容部３となっている。なお、タイヤ収容部３は、スペアタイヤカバー（図示せず）によってラゲージルームＲと隔てられている。   FIG. 1 is a perspective view of an embodiment of a tire storage structure according to the present invention, and FIG. 2 is a plan view of the tire storage structure of FIG. As shown in FIGS. 1 and 2, the tire storage structure 1 is for storing a spare tire T under a luggage room R of an automobile (vehicle) 10. In the tire storage structure 1, the recess 2 a provided in the rear floor panel 2 is a tire storage portion 3 that stores the tire T. The tire accommodating portion 3 is separated from the luggage room R by a spare tire cover (not shown).

自動車１０の車幅方向におけるタイヤ収容部３の両側には、自動車１０の前後方向に延在するリヤサイドメンバ４が設けられており、各サイドメンバ４は、スポット溶接等によってフロアパネル２に固定されている。左右一対のサイドメンバ４，４間には、タイヤ収容部３を横切るように自動車１０の車幅方向に延在するリヤフロアクロスメンバ（タイヤ保持部）５が掛け渡されており、フロアクロスメンバ５の両端部は、スポット溶接等によってサイドメンバ４に固定されている。なお、タイヤＴは、フロアクロスメンバ５上に載置された状態でフロアクロスメンバ５にボルト等によって締結されている。つまり、フロアクロスメンバ５は、タイヤＴを保持している。   Rear side members 4 extending in the front-rear direction of the automobile 10 are provided on both sides of the tire accommodating portion 3 in the vehicle width direction of the automobile 10, and each side member 4 is fixed to the floor panel 2 by spot welding or the like. ing. Between the pair of left and right side members 4, 4, a rear floor cross member (tire holding portion) 5 extending in the vehicle width direction of the automobile 10 is spanned across the tire housing portion 3, and the floor cross member 5 Both ends of the are fixed to the side member 4 by spot welding or the like. The tire T is fastened to the floor cross member 5 with bolts or the like while being placed on the floor cross member 5. That is, the floor cross member 5 holds the tire T.

図３は、図２のIII−III線に沿っての断面図である。図３に示されるように、タイヤＴ及びフロアクロスメンバ５は、タイヤ収容部３から離間している。より具体的には、フロアクロスメンバ５は、フロアパネル２の凹部２ａに沿うように曲げられており、凹部２ａの側面及び底面との間に、例えば５ｍｍ程度の隙間を有している。   FIG. 3 is a cross-sectional view taken along the line III-III in FIG. As shown in FIG. 3, the tire T and the floor cross member 5 are separated from the tire accommodating portion 3. More specifically, the floor cross member 5 is bent along the recess 2a of the floor panel 2, and has a gap of, for example, about 5 mm between the side surface and the bottom surface of the recess 2a.

以上のように構成されたタイヤ収納構造１の作用・効果について説明する。   The operation and effect of the tire storage structure 1 configured as described above will be described.

図４は、車両走行時における従来のタイヤ収納構造の振動状態を示す断面図である。図４に示されるように、従来のタイヤ収納構造においては、リヤフロアパネル１１にリヤサイドメンバ１２及びリヤフロアクロスメンバ（図示せず）がスポット溶接等によって固定されており、リヤサイドメンバ１２及びリヤフロアクロスメンバにスペアタイヤ（図示せず）がボルト等によって共締めで締結されている。   FIG. 4 is a cross-sectional view showing a vibration state of a conventional tire storage structure during vehicle travel. As shown in FIG. 4, in the conventional tire storage structure, a rear side member 12 and a rear floor cross member (not shown) are fixed to the rear floor panel 11 by spot welding or the like, and are attached to the rear side member 12 and the rear floor cross member. A spare tire (not shown) is fastened together with bolts or the like.

このように構成された従来のタイヤ収納構造では、車両走行時における低周波帯域（例えば２０Ｈｚ〜３０Ｈｚ）にスペアタイヤのピッチング共振やバウンス共振等の周波数が存在するので、それらの共振がフロアパネル１１自体の共振を励起し、こもり音（車室内の騒音）を発生させる（パネル振動による騒音の発生：図４の矢印Ａ）。更に、従来のタイヤ収納構造では、そのような低周波帯域にボデーの２節曲げや３節曲げ等の周波数が存在するので、エンジン入力やサスペンション入力等によって励起されたサイドメンバ１２の振動がフロアパネル１１を振動させ、こもり音を発生させる（骨格振動による騒音の発生：図４の矢印Ｂ）。   In the conventional tire storage structure configured as described above, frequencies such as pitching resonance and bounce resonance of the spare tire are present in a low frequency band (for example, 20 Hz to 30 Hz) when the vehicle is running. The resonance of itself is excited to generate a booming sound (noise in the passenger compartment) (generation of noise due to panel vibration: arrow A in FIG. 4). Further, in the conventional tire storage structure, since there are frequencies such as two-node bending and three-node bending of the body in such a low frequency band, the vibration of the side member 12 excited by engine input, suspension input, etc. The panel 11 is vibrated to generate a booming noise (generation of noise due to skeletal vibration: arrow B in FIG. 4).

これに対し、タイヤ収納構造１においては、タイヤＴ及びフロアクロスメンバ５がタイヤ収容部３（すなわちフロアパネル２）から離間しているため、共振配置やモードコントロールによってフロアパネル２の共振周波数を上昇させて車両走行時における低周波帯域から外すことができ、その結果、車両走行時にタイヤＴのピッチング共振やバウンス共振等によってフロアパネル２の共振が励起されるのを防止することができる（パネル振動による騒音の低減）。更に、タイヤ収納構造１においては、フロアクロスメンバ５が一対のサイドメンバ４，４間に掛け渡されているため、サイドメンバ４にタイヤＴをマスとして作用させることができ、その結果、車両走行時におけるサイドメンバ４の振動を抑制し、延いては、サイドメンバ４の振動に伴うフロアパネル２の振動を抑制することができる（骨格振動による騒音の低減）。以上により、タイヤ収納構造１によれば、車両走行時におけるタイヤ収容部３の振動による騒音を低減することが可能となる。   On the other hand, in the tire storage structure 1, the tire T and the floor cross member 5 are separated from the tire storage portion 3 (that is, the floor panel 2), so the resonance frequency of the floor panel 2 is increased by resonance arrangement and mode control. Therefore, the resonance of the floor panel 2 can be prevented from being excited by the pitching resonance, bounce resonance, etc. of the tire T during vehicle traveling (panel vibration). Noise reduction). Further, in the tire storage structure 1, the floor cross member 5 is stretched between the pair of side members 4, 4, so that the tire T can act as a mass on the side member 4, and as a result, the vehicle travels The vibration of the side member 4 at the time can be suppressed, and hence the vibration of the floor panel 2 accompanying the vibration of the side member 4 can be suppressed (reduction of noise due to skeletal vibration). As described above, according to the tire storage structure 1, it is possible to reduce noise due to vibration of the tire storage portion 3 during vehicle travel.

また、フロアクロスメンバ５にタイヤＴを保持させると共に、フロアパネル２の凹部２ａにタイヤＴを収容させることで、タイヤ収納構造１を簡易且つコンパクトに構成することができる。しかも、フロアクロスメンバ５にタイヤＴが保持されることから、フロアパネル２を薄くしたり、補強部材を廃止したりするなど、タイヤ収納構造１の軽量化を図ることができる。   Further, by holding the tire T on the floor cross member 5 and accommodating the tire T in the recess 2a of the floor panel 2, the tire storage structure 1 can be configured simply and compactly. And since the tire T is hold | maintained at the floor cross member 5, the weight reduction of the tire storage structure 1 can be achieved, such as making the floor panel 2 thin and abolishing a reinforcement member.

本発明は、上述した実施形態に限定されるものではない。例えば、図５に示されるように、タイヤＴがフロアクロスメンバ５に吊り下げられた状態でフロアクロスメンバ５にボルト等によって締結されるようにしてもよい。このような場合にも、タイヤＴ及びフロアクロスメンバ５がタイヤ収容部３から離間していれば、上述したタイヤ収納構造１と同様の作用・効果が奏される。なお、このような場合には、タイヤＴの取外しという観点から、フロアクロスメンバ５がサイドメンバ４にボルト等によって締結されていることが好ましい。   The present invention is not limited to the embodiment described above. For example, as shown in FIG. 5, the tire T may be fastened to the floor cross member 5 with bolts or the like while being suspended from the floor cross member 5. Even in such a case, as long as the tire T and the floor cross member 5 are separated from the tire housing portion 3, the same operations and effects as the tire housing structure 1 described above are exhibited. In such a case, it is preferable that the floor cross member 5 is fastened to the side member 4 with bolts or the like from the viewpoint of removing the tire T.

１…タイヤ収納構造、２…フロアパネル、２ａ…凹部、３…タイヤ収容部、４…サイドメンバ、５…フロアクロスメンバ（タイヤ保持部）、１０…自動車（車両）、Ｔ…タイヤ。   DESCRIPTION OF SYMBOLS 1 ... Tire storage structure, 2 ... Floor panel, 2a ... Recessed part, 3 ... Tire accommodating part, 4 ... Side member, 5 ... Floor cross member (tire holding part), 10 ... Automobile (vehicle), T ... Tire.

Claims (4)

車両にタイヤを収納するためのタイヤ収納構造であって、
前記タイヤを保持するタイヤ保持部と、
前記タイヤを収容するタイヤ収容部と、を備え、
前記タイヤ及び前記タイヤ保持部は、前記タイヤ収容部から離間していることを特徴とするタイヤ収納構造。 A tire storage structure for storing tires in a vehicle,
A tire holding portion for holding the tire;
A tire housing portion for housing the tire,
The tire storage structure, wherein the tire and the tire holding portion are separated from the tire storage portion. 前記タイヤ保持部は、前記タイヤが取り付けられるフロアクロスメンバであり、前記タイヤ収容部は、フロアパネルに設けられた凹部であることを特徴とする請求項１記載のタイヤ収納構造。   The tire storage structure according to claim 1, wherein the tire holding portion is a floor cross member to which the tire is attached, and the tire storage portion is a recess provided in a floor panel. 前記フロアクロスメンバは、一対のサイドメンバ間に掛け渡されていることを特徴とする請求項２記載のタイヤ収納構造。   The tire storage structure according to claim 2, wherein the floor cross member is stretched between a pair of side members. サイドメンバ間に掛け渡されたフロアクロスメンバに制御マスとしてタイヤを載置したタイヤ収納構造。   A tire storage structure in which a tire is placed as a control mass on a floor cross member spanned between side members.
JP2009071920A 2009-03-24 2009-03-24 Tire storage structure Pending JP2010221877A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013057892A1 (en) * 2011-10-21 2013-04-25 マツダ株式会社 Vehicle body floor panel structure and method for designing same
FR3009707A1 (en) * 2013-08-14 2015-02-20 Peugeot Citroen Automobiles Sa REINFORCED VEHICLE REAR AND SEAT FLOORS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013057892A1 (en) * 2011-10-21 2013-04-25 マツダ株式会社 Vehicle body floor panel structure and method for designing same
US9302720B2 (en) 2011-10-21 2016-04-05 Mazda Motor Corporation Vehicle body floor panel structure and method for designing same
FR3009707A1 (en) * 2013-08-14 2015-02-20 Peugeot Citroen Automobiles Sa REINFORCED VEHICLE REAR AND SEAT FLOORS

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