JPH0319815B2 - - Google Patents
Info
- Publication number
- JPH0319815B2 JPH0319815B2 JP59249384A JP24938484A JPH0319815B2 JP H0319815 B2 JPH0319815 B2 JP H0319815B2 JP 59249384 A JP59249384 A JP 59249384A JP 24938484 A JP24938484 A JP 24938484A JP H0319815 B2 JPH0319815 B2 JP H0319815B2
- Authority
- JP
- Japan
- Prior art keywords
- cushioning material
- floor
- vehicle
- recesses
- carpet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 38
- 238000009413 insulation Methods 0.000 claims description 14
- 230000002265 prevention Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Body Structure For Vehicles (AREA)
- Passenger Equipment (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は車両等のフロア構造に関し、更に詳細
に説明すると、車両等のフロアパネル上に振動防
止部材及び緩衝材を介して取付けられるフロアカ
ーペツトを有する車両等のフロア構造に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a floor structure of a vehicle, etc., and more specifically, a floor car installed on a floor panel of a vehicle, etc. via a vibration prevention member and a cushioning material. This invention relates to the floor structure of vehicles, etc. that have pets.
（従来の技術）
車両等のフロアは、第５図に示す如く、フロア
パネル１上にアスフアルト等からなる振動防止部
材２及びフエルト層等からなる緩衝材４を介して
フロアカーペツト３が取付けられるようになさ
れ、車室内の居住性の向上を図つている。そして
緩衝材４としてはフイルト層を用いるものが多い
が、本出願人は先にウレタンチツプ等より緩衝材
４を成形するものを提案している（実開昭58−
108729号）。(Prior Art) As shown in FIG. 5, on the floor of a vehicle, etc., a floor carpet 3 is attached to a floor panel 1 via a vibration prevention member 2 made of asphalt or the like and a cushioning material 4 made of a felt layer or the like. This is done to improve the comfort inside the vehicle. The cushioning material 4 is often made of a film layer, but the applicant has previously proposed a method in which the cushioning material 4 is formed from urethane chips or the like (Utility Model No. 58-
No. 108729).
緩衝材４は緩衝吸収作用のほかに、車両から発
生するエンジン音、または外部音等を遮音する遮
音作用も兼ねており、フエルト層内部の空気層を
調整する事により、吸音特性を調整し、種々の周
波数帯域に対応し得るようになされている。 In addition to its shock-absorbing function, the cushioning material 4 also has a sound-insulating function that blocks engine noise generated by the vehicle or external noise, etc. By adjusting the air layer inside the felt layer, the sound-absorbing properties can be adjusted. It is designed to be compatible with various frequency bands.
（発明が解決しようとする問題点）
然し乍ら、緩衝材４としてフエルト層を用いる
場合に、フエルト層の空気層を多くすると、即ち
フエルト層の密度を低くすると、緩衝材４として
の緩衝吸収作用が悪化すると共に、形状保持性が
劣化し、ヘタリ易い欠点を有し、また成形性が悪
く、フロアパネル１の形状に対応して正確な形状
が得られない欠点を有していた。(Problems to be Solved by the Invention) However, when using a felt layer as the cushioning material 4, if the air layer in the felt layer is increased, that is, if the density of the felt layer is decreased, the buffering and absorbing effect of the cushioning material 4 will be reduced. In addition, the shape retention property deteriorated, and it had the disadvantage that it was easily bent, and also had the disadvantage that the moldability was poor and an accurate shape corresponding to the shape of the floor panel 1 could not be obtained.
本発明の目的は、緩衝材としての衝撃吸収作用
及び遮音作用が優れ、形状保持性が優れ、然も成
形性が優れた緩衝材を用いた車両等とフロア構造
を提供するものである。 An object of the present invention is to provide a vehicle, etc., and a floor structure using a cushioning material that has excellent shock absorption and sound insulation effects, excellent shape retention, and excellent moldability.
（問題点を解決するための手段）
本発明は上述せる問題点に鑑みてなされたもの
で、車両等のフロアパネル上に振動防止部材及び
緩衝材を介して取付けられるフロアカーペツトを
有する車両等のフロア構造において、前記緩衝材
のフロアカーペツト側またはフロアパネル側に遮
音用の多数の凹部が形成され、該遮音用の凹部は
開孔率が20〜40％に形成され、該凹部がフロアカ
ーペツトのバツキング材または振動防止部材によ
り密閉されている事を特徴とする。(Means for Solving the Problems) The present invention has been made in view of the above-mentioned problems, and is applicable to vehicles, etc., which have a floor carpet that is attached to the floor panel of the vehicle, etc. via a vibration prevention member and a cushioning material. In this floor structure, a large number of sound insulation recesses are formed on the floor carpet side or the floor panel side of the cushioning material, and the sound insulation recesses are formed with a porosity of 20 to 40%, and the recesses are formed on the floor carpet side or the floor panel side. It is characterized by being sealed with a carpet backing material or vibration prevention material.
（作用）
緩衝材に遮音用の多数の凹部が形成され、これ
らの凹部が開孔率20〜40％に形成され、これらの
凹部がフロアカーペツトのバツキング材またはフ
ロアパネル側により密閉された状態となるので、
この緩衝材に遮音用を空気層が形成される。従つ
て、この空気層を大きさを調整する事により、ク
ツシヨン性が著しく優れ、且つ種々の周波数帯域
に対応し得る吸音特性の優れた車両等のフロア構
造が得られる。(Function) A state in which a large number of recesses for sound insulation are formed in the cushioning material, these recesses are formed with a porosity of 20 to 40%, and these recesses are sealed by the backing material of the floor carpet or the floor panel side. Therefore,
An air layer is formed in this cushioning material for sound insulation. Therefore, by adjusting the size of this air layer, it is possible to obtain a floor structure for a vehicle, etc., which has extremely excellent cushioning properties and excellent sound absorption characteristics that can accommodate various frequency bands.
（実施例）
以下本発明に係る車両等のフロア構造の一実施
例を図面を参照して詳述する。(Example) An example of a floor structure for a vehicle or the like according to the present invention will be described in detail below with reference to the drawings.
第１図及び第２図には本発明の一実施例の概略
が夫々示されており、第１図に拡大断面で示す如
く、フロアパネル１１にはアスフアルト等からな
る振動防止部材１２が取付けられ、この振動防止
部材１２の上部にウレタンチツプ等の発泡体チツ
プから成形された緩衝材１４が積層され、この緩
衝材１４の上部にカーペツト層１３が積層されて
いる。このカーペツト層１３は本実施例では表面
側の短繊維１３ａと基布１３ｂ、及び基部１３ｂ
の裏面側に接合されたバツキング材１３ｃとから
構成されている。尚、カーペツト層１３は本実施
例の構成のものに限定されるものではなく、不織
布またはフエルト層等に短繊維を直接植毛したも
のであつてもよい。 1 and 2 schematically show an embodiment of the present invention, and as shown in an enlarged cross section in FIG. 1, a vibration prevention member 12 made of asphalt or the like is attached to a floor panel 11. A cushioning material 14 made of foam chips such as urethane chips is laminated on top of the vibration prevention member 12, and a carpet layer 13 is laminated on top of this cushioning material 14. In this embodiment, this carpet layer 13 includes short fibers 13a on the surface side, a base fabric 13b, and a base portion 13b.
The backing material 13c is bonded to the back side of the backing material 13c. The carpet layer 13 is not limited to the structure of this embodiment, but may be a nonwoven fabric, a felt layer, or the like, in which short fibers are directly flocked.
第２図にはカーペツト層１３を緩衝材１４に接
合する前の状態の緩衝材１４の一部断面斜視図が
示されており、この緩衝材１４には本実施例では
カーペツト層１３側に遮音用の多数の凹部１５が
形成され、これらの多数の凹部１５の上端開口部
が第１図に示す如く、カーペツト層１３のバツキ
ング材１３ｃにより密閉されるようになされてい
る。尚本実施例では多数の凹部１５を上面側に形
成したが、緩衝材１４の下面側に形成し、または
上面及び下面の何れにも形成してもよく、更に、
本実施例では同一大きさの凹部１５を形成したが
異なる大きさを用いてもよく、また凹部１５を均
一に配設するもののほか、必要な部分にのみ凹部
１５を形成してもよい。 FIG. 2 shows a partially sectional perspective view of the cushioning material 14 in a state before the carpet layer 13 is joined to the cushioning material 14. In this embodiment, the cushioning material 14 has a sound insulating material on the side of the carpet layer 13. A large number of recesses 15 are formed, and the upper end openings of these many recesses 15 are sealed with a backing material 13c of the carpet layer 13, as shown in FIG. In this embodiment, a large number of recesses 15 are formed on the upper surface side, but they may be formed on the lower surface side of the cushioning material 14, or on both the upper surface and the lower surface.
In this embodiment, the recesses 15 are formed with the same size, but different sizes may be used.In addition to disposing the recesses 15 uniformly, the recesses 15 may be formed only in necessary areas.
第３図には本発明の異なる実施例が示されてお
り、この実施例においては緩衝材１４の上面側が
波状面１６に形成され、波状面１６の谷部が凹部
１７に形成されている事を除いては前述せる実施
例と同様の構成を有するものである。 FIG. 3 shows a different embodiment of the present invention, in which the upper surface side of the cushioning material 14 is formed into a wavy surface 16, and the troughs of the wavy surface 16 are formed into recesses 17. Except for this, this embodiment has the same structure as the embodiment described above.
上述せる実施例における凹部１５，１７は緩衝
材１４を発泡体チツプよりプレス成形する際に一
体に形成する事が出来るものである。 The recesses 15 and 17 in the embodiment described above can be integrally formed when the cushioning material 14 is press-molded from a foam chip.
次に、第４図には本発明における車両等のフロ
ア構造における遮音度一周波数特性曲線が示され
ており、緩衝材１４の開孔率（全体積における空
間体積の百分率）が20％（曲線Ａ）の場合と40％
（曲線Ｂ）の場合とが従来のフエルトからなる緩
衝材（曲線Ｃ）と比較して示される。 Next, FIG. 4 shows a sound insulation degree vs. frequency characteristic curve in the floor structure of a vehicle, etc. according to the present invention, and the porosity of the cushioning material 14 (percentage of the space volume in the total volume) is 20% (the curve A) and 40%
(Curve B) is compared with a conventional cushioning material made of felt (Curve C).
ここで、曲線Ａの周波数350Hz〜1000Hzにおけ
る遮音度が優れ、この範囲に対応する320Hz〜
1100Hzのノイズを出す４気筒エンジンを搭載する
車両にこの開孔率20％の緩衝材を用いるのが好ま
しい。また曲線Ｂの周波数900Hz〜1500Hzにおけ
る遮音度が優れ、この範囲に対応する820Hz〜
1200Hzのノイズを出す６気筒エンジン搭載の車両
にこの開孔率40％の緩衝材を用いるのが好まし
い。 Here, the degree of sound insulation in the frequency range of 350Hz to 1000Hz of curve A is excellent, and the degree of sound insulation is excellent in the frequency range of 320Hz to 1000Hz, which corresponds to this range.
It is preferable to use this cushioning material with a porosity of 20% in a vehicle equipped with a 4-cylinder engine that produces noise at 1100 Hz. In addition, the sound insulation degree in the frequency range of 900Hz to 1500Hz of curve B is excellent, and the degree of sound insulation is excellent in the frequency range of 820Hz to 1500Hz.
It is preferable to use this cushioning material with a porosity of 40% for vehicles equipped with a 6-cylinder engine that produces 1200Hz noise.
（発明の効果）
本発明に係る車両等のフロア構造に依れば、衝
撃吸収作用及び遮音作用が優れ、また緩衝材に極
めて容易に遮音用の多数の凹部を形成する事が出
来、緩衝材の開孔率を増大させてもフエルト層か
らなる緩衝材と異なり形状保持性が悪化する事な
く、短時間でヘタル虞れもなく、居住性を著しく
向上させる事の出来る車両等のフロア構造を得る
事が出来る。(Effects of the Invention) The floor structure of a vehicle or the like according to the present invention has excellent shock absorption and sound insulation effects, and it is possible to form a large number of sound insulation recesses in the cushioning material very easily. Unlike cushioning materials made of felt layers, even if the porosity is increased, the shape retention does not deteriorate, and the floor structure of vehicles, etc. can be significantly improved in terms of comfort without the risk of failure in a short period of time. You can get it.
第１図及び第２図は本発明に係る車両等のフロ
ア構造の一実施例の概略を夫々示すもので、第１
図はフロア構造の一部拡大断面説明図、第２図は
カーペツト層を取付ける前の緩衝材の一部断面斜
視図、第３図は緩衝材の異なる実施例を示す斜視
図、第４図は遮音度一周波数特性曲線図、第５図
は従来の車両等のフロア構造を示す断面説明図で
ある。
図中、１１……フロアパネル、１２……振動防
止部材、１３……カーペツト層、１４……緩衝
材、１５……凹部、１６……波状面、１７……凹
部。
FIG. 1 and FIG. 2 each schematically show an embodiment of a floor structure for a vehicle etc. according to the present invention.
The figure is an explanatory partially enlarged cross-sectional view of the floor structure, Figure 2 is a partially cross-sectional perspective view of the cushioning material before the carpet layer is attached, Figure 3 is a perspective view showing different embodiments of the cushioning material, and Figure 4 is FIG. 5 is a cross-sectional explanatory diagram showing the floor structure of a conventional vehicle. In the figure, 11...floor panel, 12...vibration prevention member, 13...carpet layer, 14...buffer material, 15...recess, 16...corrugated surface, 17...recess.
Claims (1)
緩衝材を介して取付けられるフロアカーペツトを
有する車両等のフロア構造において、前記緩衝材
のフロアカーペツト側またはフロアパネル側に遮
音用の多数の凹部が形成され、該遮音用の凹部は
開孔率が20〜40％に形成され、該凹部がフロアカ
ーペツトのバツキング材または振動防止部材によ
り密閉されている事を特徴とする車両等のフロア
構造。1. In a floor structure of a vehicle, etc., which has a floor carpet attached to the floor panel of the vehicle, etc. via a vibration prevention member and a cushioning material, a large number of recesses for sound insulation are provided on the floor carpet side or the floor panel side of the cushioning material. A floor structure for a vehicle, etc., characterized in that the sound insulation recess is formed with a porosity of 20 to 40%, and the recess is sealed with a backing material of a floor carpet or a vibration prevention member. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24938484A JPS61235278A (en) | 1984-11-26 | 1984-11-26 | Floor structure for vehicle, and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24938484A JPS61235278A (en) | 1984-11-26 | 1984-11-26 | Floor structure for vehicle, and the like |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61235278A JPS61235278A (en) | 1986-10-20 |
| JPH0319815B2 true JPH0319815B2 (en) | 1991-03-18 |
Family
ID=17192200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24938484A Granted JPS61235278A (en) | 1984-11-26 | 1984-11-26 | Floor structure for vehicle, and the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61235278A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0529149Y2 (en) * | 1986-11-27 | 1993-07-27 | ||
| JPH0617668Y2 (en) * | 1987-09-21 | 1994-05-11 | 日産自動車株式会社 | Floor panel structure |
| JP4197586B2 (en) * | 2001-08-27 | 2008-12-17 | 日本特殊塗料株式会社 | Automotive interior materials using skin materials made from recycled materials |
| WO2005049386A1 (en) * | 2003-11-19 | 2005-06-02 | Hayashi Engineering Inc. | Impact absorbing body |
| JP4437662B2 (en) * | 2003-11-19 | 2010-03-24 | 株式会社林技術研究所 | Automotive floor laying body |
| EP1588904A1 (en) * | 2004-04-22 | 2005-10-26 | IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. | Method for manufacturing a floor carpet including a sensing device for an automotive vehicle |
| JP4709624B2 (en) * | 2005-09-27 | 2011-06-22 | 寿屋フロンテ株式会社 | Molded carpet for vehicle and method for producing molded carpet for vehicle |
| FR2899171B1 (en) * | 2006-03-31 | 2009-04-10 | Cera | COMPONENT FOR TRIM AND ACOUSTIC PROTECTION OF A MOTOR VEHICLE |
| FR2910685B1 (en) * | 2006-12-22 | 2009-01-30 | Renault Sas | ARRANGEMENT OF A DEVICE FOR ABSORPTION OF SOUND WAVES |
| JP4895841B2 (en) * | 2007-01-31 | 2012-03-14 | 積水化成品工業株式会社 | Vehicle floor spacer |
| JP4714183B2 (en) * | 2007-05-18 | 2011-06-29 | 本田技研工業株式会社 | Car floor carpet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56142760A (en) * | 1980-04-07 | 1981-11-07 | Kasai Kogyo Co Ltd | Insulator dash |
| JPS5847538B2 (en) * | 1978-04-17 | 1983-10-22 | ロクデ産業株式会社 | sheet metal pillar |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5847538U (en) * | 1981-09-29 | 1983-03-30 | 日産自動車株式会社 | Damping material for car body panels |
-
1984
- 1984-11-26 JP JP24938484A patent/JPS61235278A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5847538B2 (en) * | 1978-04-17 | 1983-10-22 | ロクデ産業株式会社 | sheet metal pillar |
| JPS56142760A (en) * | 1980-04-07 | 1981-11-07 | Kasai Kogyo Co Ltd | Insulator dash |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61235278A (en) | 1986-10-20 |
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