JP2003118460A - Automobile floor spacer - Google Patents

Automobile floor spacer

Info

Publication number
JP2003118460A
JP2003118460A JP2001316740A JP2001316740A JP2003118460A JP 2003118460 A JP2003118460 A JP 2003118460A JP 2001316740 A JP2001316740 A JP 2001316740A JP 2001316740 A JP2001316740 A JP 2001316740A JP 2003118460 A JP2003118460 A JP 2003118460A
Authority
JP
Japan
Prior art keywords
floor
automobile
spacer
absorbing material
floor spacer
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.)
Granted
Application number
JP2001316740A
Other languages
Japanese (ja)
Other versions
JP4059655B2 (en
JP2003118460A5 (en
Inventor
Masahiro Kotani
正弘 小谷
Tetsuya Kato
哲也 加藤
Hideaki Tokita
英明 時田
Makoto Miyamoto
誠 宮本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Showa Denko Materials Co Ltd
Kotobukiya Fronte Co Ltd
Original Assignee
Hitachi Chemical Co Ltd
Kotobukiya Fronte Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Chemical Co Ltd, Kotobukiya Fronte Co Ltd filed Critical Hitachi Chemical Co Ltd
Priority to JP2001316740A priority Critical patent/JP4059655B2/en
Publication of JP2003118460A publication Critical patent/JP2003118460A/en
Publication of JP2003118460A5 publication Critical patent/JP2003118460A5/ja
Application granted granted Critical
Publication of JP4059655B2 publication Critical patent/JP4059655B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To provide an automobile floor spacer with lighter members and improved comfortableness and safety against impact. SOLUTION: The automobile floor spacer is made of hard foaming plastics to be spread on the floor surface forming the foot part of a passenger seat of an automobile or on the floor surface and the front surface of the foot part. A flat plane is formed on the interior side, and an impact absorbing material with a honeycomb structure, slit structure or projection structure is engaged to be integrated on the floor surface side.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、自動車の全席の床
面又は床面と乗員足元周辺に敷設され、床面の平坦性の
確保及び車内外で発生する衝撃に対する乗員の保護を目
的とした硬質発泡プラスチック製のフロアスペーサに関
し、更に詳しくは、要求される機能の異なるフロアスペ
ーサと衝撃吸収材を嵌合により一体化した自動車用フロ
アスペーサに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is laid on the floor surface of all seats of an automobile or around the floor and the feet of the occupant, and has as its object to secure the flatness of the floor surface and to protect the occupant against shocks generated inside and outside the vehicle. The present invention relates to a floor spacer made of hard foam plastic, and more particularly to a floor spacer for an automobile in which a floor spacer having a different required function and a shock absorber are integrated by fitting.

【0002】[0002]

【従来の技術】近年、自動車に用いられる部材は走行距
離に対する燃料消費率の向上を目的に、軽量化が求めら
れている。従来、自動車用フロアスペーサとして、乗員
足元の平坦さの保持や断熱性の向上を目的に、発泡ウレ
タンチップを固めた成形品が用いられてきた。一方、自
動車衝突時の乗員保護のため、衝突安全性向上を目的
に、車体構造の改善や衝撃吸収材の採用が行われてお
り、自動車用の衝撃吸収材としては、硬質発泡ウレタン
が多く採用されてきたが、乗員の足元周りの安全性向上
と軽量化の両立は、これからの課題とされていた。
2. Description of the Related Art In recent years, members used for automobiles have been required to be light in weight for the purpose of improving the fuel consumption rate with respect to the distance traveled. BACKGROUND ART Conventionally, a molded product obtained by hardening urethane foam chips has been used as a floor spacer for automobiles for the purpose of maintaining the flatness of the feet of passengers and improving heat insulation. On the other hand, in order to protect the occupants in the event of a car collision, the body structure has been improved and shock absorbers have been adopted for the purpose of improving collision safety. Hard urethane foam is often used as a shock absorber for automobiles. However, it has been an issue in the future to improve the safety around the feet of the occupants and reduce the weight.

【0003】[0003]

【発明が解決しようとする課題】これまで自動車用フロ
アスペーサとして用いられてきた発泡ウレタンチップ成
形品は、圧縮強度が低いことから、発泡体の密度をおよ
そ100kg/m3 と高くする必要があった。乗用車に
おけるフロアスペーサの敷き詰められる床面積は車種に
より異なるが、およそ1〜2m2 あり、フロアスペーサ
の厚みを5cmとすると、車1台あたり重量では5〜1
0kgと重いため、軽量化が課題であった。
Since the foamed urethane chip moldings that have been used as floor spacers for automobiles have low compressive strength, it is necessary to increase the density of the foamed body to about 100 kg / m 3. It was The floor area covered by floor spacers in passenger cars varies depending on the type of vehicle, but is approximately 1 to 2 m 2, and if the floor spacer thickness is 5 cm, the weight per vehicle is 5 to 1 m 2 .
Since it is as heavy as 0 kg, weight reduction has been an issue.

【0004】一方、自動車内外で発生する衝撃に対する
エネルギ吸収材、例えばドア内に配置されるエネルギ吸
収体は、衝撃を受けて変形する歪み量(%)が大きくな
っても応力上昇が少ない特徴を持つ素材として、発泡ウ
レタンが多く採用されている。また、自動車の衝突安全
性の更なる向上を目的に、車体構造改善や衝突時に乗員
に負荷を与え得る部材へ衝撃吸収効果を付加することが
求められていた。しかしながら、発泡ウレタンは熱硬化
性樹脂であることからリサイクルできないことや、他の
発泡プラスチックと比較して同一密度での強度が低いこ
と、吸水率が高いこと、コスト的に割高になる等の問題
があり、フロアスペーサへの適用範囲は限られたものに
ならざるを得なかった。
On the other hand, the energy absorbing material against the impact generated inside and outside the automobile, for example, the energy absorbing body arranged in the door, is characterized by a small increase in stress even if the amount of strain (%) deformed by the impact increases. Urethane foam is often used as the material to hold. Further, for the purpose of further improving the collision safety of an automobile, it has been required to add a shock absorbing effect to a member that can give a load to an occupant at the time of a collision by improving a vehicle body structure. However, since urethane foam is a thermosetting resin, it cannot be recycled, its strength is lower than other foamed plastics at the same density, its water absorption is high, and its cost is high. Therefore, the range of application to the floor spacer is unavoidable.

【0005】[0005]

【課題を解決するための手段】本発明は、自動車の乗員
座席の足元を形成する床面又は床面と足元前面に敷設さ
れ、硬質発泡プラスチック製で、室内側では平面を形成
し、床面側では、ハニカム構造、スリット構造又は突起
構造を有する衝撃吸収材が嵌合により一体化された自動
車用フロアスペーサに関する。硬質発泡プラスチック
が、発泡性熱可塑性樹脂粒子を所定の密度に一次発泡し
たのち、金型に充填し、スチーム等の加熱により成形さ
れ、密度が10kg/m 3 以上200kg/m3 以下の
発泡成形品であって、衝撃吸収材及びフロアスペーサが
同一の素材であることが好ましい。また、衝撃吸収材が
硬質発泡プラスチック成形品であって、衝撃吸収材とフ
ロアスペーサとの嵌合が、低密度側が凹構造で高密度側
が凸構造となることが好ましい。
SUMMARY OF THE INVENTION The present invention is a vehicle occupant.
Installed on the floor forming the foot of the seat or on the floor and the front of the foot.
Made of hard foam plastic, forming a flat surface on the indoor side
However, on the floor side, honeycomb structure, slit structure or protrusion
Automatic shock absorber with structure is integrated by fitting
Car floor spacers. Rigid foam plastic
However, primary expansion of expandable thermoplastic resin particles to a specified density
After that, fill the mold and mold by heating with steam etc.
And the density is 10 kg / m 3 200 kg / m or more3 below
It is a foam molded product, and the shock absorber and floor spacer are
The same material is preferable. In addition, the shock absorber
It is a hard foam plastic molded product,
Mating with the lower spacer has a concave structure on the low density side and a high density side
Preferably has a convex structure.

【0006】[0006]

【発明の実施の形態】以下、本発明の実施の形態を説明
する。本発明に使用されるフロアスペーサや衝撃吸収材
に用いることができる硬質発泡プラスチックの材質は、
リサイクルが可能な無架橋の熱可塑性樹脂とされ、発泡
性樹脂粒子を所定の密度に一次発泡した後、金型に充填
し、スチーム等の加熱により成形される発泡成形品が好
ましい。このような硬質発泡プラスチックとしては、発
泡ポリエチレン、発泡ポリプロピレン等の発泡ポリオレ
フィン等があるが、本発明では、特に経済性と優れた成
形品物性から発泡ポリスチレン系プラスチックが好まし
い。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. The material of the hard foam plastic that can be used for the floor spacer and the shock absorber used in the present invention is
A foam-molded product which is a non-crosslinkable thermoplastic resin that can be recycled, and which is obtained by primarily foaming expandable resin particles to a predetermined density, filling the mold, and molding by heating with steam or the like is preferable. Examples of such rigid foamed plastic include foamed polyolefin such as foamed polyethylene and foamed polypropylene. In the present invention, foamed polystyrene-based plastic is preferable from the viewpoint of economy and physical properties of molded articles.

【0007】発泡ポリスチレン系プラスチックには、耐
薬品性を向上させたスチレン/アクリロニトリル樹脂、
耐熱性を向上させたスチレン/アクリロニトリル/α−
メチルスチレン樹脂等の発泡体等がある。本発明に用い
られる硬質発泡プラスチックの密度は、要求される耐圧
荷重と、衝撃吸収性のバランスにより決定されることか
ら、10kg/m3 以上200kg/m3 以下の範囲と
することが好ましい。衝撃吸収材及びフロアスペーサの
密度は、同一であっても、異なっても良く、特に制限さ
れるものではない。
Expanded polystyrene plastics include styrene / acrylonitrile resin with improved chemical resistance,
Styrene / acrylonitrile / α- with improved heat resistance
There are foams such as methylstyrene resin. The density of the rigid foamed plastic used in the present invention is determined by the balance between the required withstand pressure load and the impact absorbability, and is therefore preferably in the range of 10 kg / m 3 or more and 200 kg / m 3 or less. The densities of the impact absorbing material and the floor spacer may be the same or different and are not particularly limited.

【0008】フロアスペーサに要求される耐圧荷重は、
例えば、靴のかかとの面積(5×3=15cm2 )に、
荷重30kgがかかったとき、必要な圧縮強度は、30
/15=2kg/cm2 ≒0.2MPaとなる。図1
に、本発明で用いられる硬質発泡プラスチックの一例で
あるスチレン/アクリロニトリル樹脂発泡体(日立化成
工業(株)製 ハイビーズGR)の密度を変えた場合の
静的圧縮試験における圧縮歪みとその時の圧縮応力との
関係を示した。図1から圧縮歪みを10%としたとき、
圧縮強度が0.2MPa以上となる密度は、25kg/
3 以上であることが示される。
The pressure resistance required for the floor spacer is
For example, in the area of the heel of the shoe (5 × 3 = 15 cm 2 ),
When a load of 30 kg is applied, the required compressive strength is 30
/ 15 = 2 kg / cm 2 ≈0.2 MPa. Figure 1
In addition, the compressive strain in the static compression test and the compressive stress at that time when the density of the styrene / acrylonitrile resin foam (HIBEAD GR manufactured by Hitachi Chemical Co., Ltd.), which is an example of the rigid foamed plastic used in the present invention, is changed. The relationship with From Fig. 1, when the compression strain is 10%,
The density at which the compressive strength is 0.2 MPa or more is 25 kg /
It is shown that it is m 3 or more.

【0009】一方、本発明で用いられる衝撃吸収材は、
床面側はハニカム構造、スリット構造又は突起構造とさ
れ、必要な圧縮強度は、床面に対する接触面積の比率で
除したものとなる。先の例で、衝撃吸収材の床面との接
触面積が60%の場合、必要な強度は、0.2MPa/
0.6=0.33MPaとなる。先と同様に、図1より
圧縮歪みを10%としたとき、圧縮強度が0.3MPa
以上となる密度は33kg/m3 以上であることが示さ
れる。本発明では、想定される耐圧荷重と衝撃吸収材の
構造によって、必要な強度と密度が異なるものの、強度
の維持及び軽量性から硬質発泡プラスチックの密度は1
0kg/m3 以上200kg/m3 以下が好ましい。
On the other hand, the shock absorbing material used in the present invention is
The floor surface side has a honeycomb structure, a slit structure, or a protrusion structure, and the necessary compressive strength is obtained by dividing the contact area with the floor surface. In the above example, when the contact area of the shock absorber with the floor surface is 60%, the required strength is 0.2 MPa /
It becomes 0.6 = 0.33 MPa. Similarly to the above, when the compressive strain is set to 10% from FIG. 1, the compressive strength is 0.3 MPa.
It is shown that the above density is 33 kg / m 3 or more. In the present invention, although the required strength and density differ depending on the assumed pressure resistance load and the structure of the shock absorber, the density of the hard foam plastic is 1 because of the strength maintenance and the light weight.
It is preferably 0 kg / m 3 or more and 200 kg / m 3 or less.

【0010】本発明によるフロアスペーサの形状は、自
動車床面の凹凸をなくし、室内側への平面付与ができる
ものなら特に制限はない。例えば、図2(a)及び
(b)に示したように、平坦な平面を持つ室内側と、自
動車床面の凹凸に沿った底面側を有するものとされる。
図2において1は貫通孔である。衝撃吸収材は、その床
面側が図3に示したようなハニカム構造、図4に示した
スリット構造又は図5に示した突起構造が単独で又は組
み合わされて機能を果たす。
The shape of the floor spacer according to the present invention is not particularly limited as long as the unevenness of the floor surface of the automobile can be eliminated and a flat surface can be provided on the indoor side. For example, as shown in FIGS. 2 (a) and 2 (b), the interior side has a flat plane and the bottom side along the unevenness of the floor surface of the automobile.
In FIG. 2, reference numeral 1 is a through hole. The impact absorbing material functions on the floor side thereof, either alone or in combination with the honeycomb structure shown in FIG. 3, the slit structure shown in FIG. 4, or the protrusion structure shown in FIG.

【0011】通常ハニカム構造は、正6角形の蜂の巣状
を意味するが、本発明においてはnが3以上のn角形、
円形又は楕円形でもよい。また、突起構造についても突
起の断面形状がnが3以上のn角形、円形又は楕円形ま
で自由に選択することができる。例えば、フロアスペー
サと衝撃吸収材との嵌合は、図8及び9に示すようにフ
ロアスペーサ2に、貫通孔1を設け、衝撃吸収材3には
凸部4を設け、容易に接続可能なものとすることができ
る。自動車用フロアスペーサに応力が働いた場合に、嵌
合部に応力が集中し凸部から破損が起こる可能性があ
り、フロアスペーサと衝撃吸収材との嵌合は、高密度側
が凸構造となることが好ましい。本発明になる自動車用
フロアスペーサにおいては、硬質発泡プラスチック自体
が有する緩衝性とハニカム等の構造要因による効果が相
乗的に働き、より高い衝撃吸収性能が発揮される。
Usually, the honeycomb structure means a regular hexagonal honeycomb shape, but in the present invention, an n-gonal shape in which n is 3 or more,
It may be circular or elliptical. Further, as for the projection structure, the cross-sectional shape of the projection can be freely selected to be an n-sided shape, a circle shape, or an elliptical shape where n is 3 or more. For example, when the floor spacer and the shock absorber are fitted, as shown in FIGS. 8 and 9, the floor spacer 2 is provided with the through hole 1 and the shock absorber 3 is provided with the convex portion 4, so that the shock absorber can be easily connected. Can be one. When stress acts on the floor spacer for automobiles, stress may concentrate on the fitting part and damage may occur from the convex part, and the fitting of the floor spacer and the shock absorber has a convex structure on the high density side. It is preferable. In the floor spacer for an automobile according to the present invention, the shock absorbing performance of the hard foam plastic itself and the effect of the structural factors such as the honeycomb work synergistically, and a higher impact absorbing performance is exhibited.

【0012】[0012]

【実施例】以下に実施例を示し、更に詳細に本発明を説
明するが、これに限定されるものではない。図2に示す
外観を有するフロアスペーサ2を、日立化成工業(株)
製発泡性ポリスチレン/アクリロニトリル樹脂、ハイビ
ーズGRを素材とした、密度20kg/m3 の硬質発泡
プラスチックで作製した。フロアスペーサの全容積は、
15000ml、重量は、300gであった。図6
(a)、(b)及び(c)に示す外観を有する衝撃吸収
材を、日立化成工業(株)製発泡性ポリスチレン/アク
リロニトリル樹脂、ハイビーズGRを素材とした、密度
67kg/m3 の硬質発泡プラスチックで作製した。衝
撃吸収材の全容積は2100ml、重量は140g、衝
撃吸収材ハニカムの構造の寸法は、肉厚44mm、表皮
肉厚8mm、ハニカム高さ36mm、ハニカムのリブ幅
5mmとした。図において(a)は室内側、(b)は床
面側及び(c)は側面側の略図である。
EXAMPLES The present invention will be described in more detail with reference to the following examples, which should not be construed as limiting the invention. The floor spacer 2 having the appearance shown in FIG. 2 is manufactured by Hitachi Chemical Co., Ltd.
It was made of a rigid foamed plastic having a density of 20 kg / m 3 and made of a foamable polystyrene / acrylonitrile resin and high beads GR. The total volume of the floor spacer is
The weight was 15,000 ml and the weight was 300 g. Figure 6
(A), (b) and (c) the shock absorber having the appearance, a hard foam having a density of 67 kg / m 3 , made of expandable polystyrene / acrylonitrile resin and high beads GR manufactured by Hitachi Chemical Co., Ltd. Made of plastic. The total volume of the impact absorbing material was 2100 ml, the weight was 140 g, and the dimensions of the structure of the impact absorbing material honeycomb were 44 mm in wall thickness, 8 mm in skin thickness, 36 mm in honeycomb height, and 5 mm in rib width of the honeycomb. In the figure, (a) is a schematic view of the indoor side, (b) is a floor side, and (c) is a side view.

【0013】実施例の特性 同容積のフロアスペーサをウレタンチップの圧縮物で作
った場合は約3kgとなることから、この部材2で2.
7kg低減できた。衝撃吸収材の機能比較の一例とし
て、同一素材で、同一重量となるハニカムのない、密度
33kg/m3 の発泡プラスチックと比較した。JIS
−Z0235に準拠して衝撃試験を行った結果を図7に
示す。試験は、底面積が70cm2 、重量が4.5kg
のおもりを高さを変えて自由落下させ、成形品に衝突さ
せ、そのときの圧縮歪みと圧縮応力の関係を調べた。図
7より、比較例は圧縮歪みが大きくなるにつれて圧縮応
力が増加していくのに対し、本発明品は、圧縮歪み15
%〜60%の間では圧縮応力がほぼ一定の値を示し、衝
撃吸収性能が優れていることが示される。
Characteristics of the embodiment If a floor spacer having the same volume is made of a compressed material of urethane chips, the weight is about 3 kg.
It was possible to reduce by 7 kg. As an example of the function comparison of the impact absorbing material, a comparison was made with a foamed plastic having the same material, the same weight and no honeycomb, and a density of 33 kg / m 3 . JIS
The result of the impact test based on -Z0235 is shown in FIG. The test has a bottom area of 70 cm 2 and a weight of 4.5 kg.
The weight was dropped freely by changing the height and collided with the molded product, and the relationship between the compressive strain and the compressive stress at that time was investigated. From FIG. 7, the compressive stress increases as the compressive strain increases in the comparative example, while the compressive strain of the product of the present invention is 15
%, The compressive stress shows a substantially constant value, indicating that the shock absorbing performance is excellent.

【0014】[0014]

【発明の効果】本発明になる衝撃吸収材が一体化された
自動車用フロアスペーサは、より軽量な部材で、居住性
と衝撃安全性を向上させることができる。
EFFECT OF THE INVENTION The floor spacer for an automobile, in which the shock absorbing material according to the present invention is integrated, is a lighter member and can improve the comfortability and the shock safety.

【図面の簡単な説明】[Brief description of drawings]

【図1】日立化成工業(株)製「ハイビーズGR」成形
品の圧縮歪みと応力の関係を示す図。
FIG. 1 is a diagram showing a relationship between compressive strain and stress of a “HIBEAD GR” molded product manufactured by Hitachi Chemical Co., Ltd.

【図2】フロアスペーサ形状の例を示す図。FIG. 2 is a diagram showing an example of a floor spacer shape.

【図3】衝撃吸収材の構造の例(ハニカム構造)を示す
図。
FIG. 3 is a diagram showing an example of a structure of a shock absorbing material (honeycomb structure).

【図4】衝撃吸収材の構造の例(スリット構造)を示す
図。
FIG. 4 is a diagram showing an example of a structure of a shock absorbing material (slit structure).

【図5】衝撃吸収材の構造の例(突起構造)を示す図。FIG. 5 is a diagram showing an example of a structure of a shock absorbing material (projection structure).

【図6】衝撃吸収材の外観の例を示す図。FIG. 6 is a diagram showing an example of the appearance of a shock absorbing material.

【図7】本発明品の衝撃吸収特性測定結果を示す図。FIG. 7 is a diagram showing the results of measurement of impact absorption characteristics of the product of the present invention.

【図8】フロアスペーサと衝撃吸収材との嵌合を示す
図。
FIG. 8 is a view showing fitting of a floor spacer and a shock absorbing material.

【図9】フロアスペーサと衝撃吸収材を嵌合により一体
化させたものの例を示す図。
FIG. 9 is a diagram showing an example in which a floor spacer and a shock absorbing material are integrated by fitting.

【符号の説明】[Explanation of symbols]

1 貫通孔 2 フロアスペーサ 3 衝撃吸収材 4 凸部 1 through hole 2 floor spacer 3 shock absorber 4 convex

───────────────────────────────────────────────────── フロントページの続き (72)発明者 時田 英明 千葉県市原市五井南海岸14番地 日立化成 工業株式会社五井事業所内 (72)発明者 宮本 誠 埼玉県行田市藤原町1丁目20番1号 寿屋 フロンテ株式会社内 Fターム(参考) 3B087 DE10 4F212 AB02 AG03 AG20 AH26 UA01 UB01 UB13 UB29 UC06 UN13 UP07    ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hideaki Tokita             Hitachi Chemical Co., Ltd. 14 Goi Minami Coast, Ichihara City, Chiba Prefecture             Koi Industry Co., Ltd. (72) Inventor Makoto Miyamoto             1-20-1, Fujiwara-cho, Gyoda-shi, Saitama Kotobukiya             Fronte Co., Ltd. F term (reference) 3B087 DE10                 4F212 AB02 AG03 AG20 AH26 UA01                       UB01 UB13 UB29 UC06 UN13                       UP07

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 自動車の乗員座席の足元を形成する床面
又は床面と足元前面に敷設され、硬質発泡プラスチック
製で、室内側では平面を形成し、床面側では、ハニカム
構造、スリット構造又は突起構造を有する衝撃吸収材が
嵌合により一体化された自動車用フロアスペーサ。
1. A floor surface forming a foot of a passenger seat of an automobile, or a floor surface and a front surface of the feet, which are laid on the floor surface and are made of hard foamed plastic, form a flat surface on the indoor side, and have a honeycomb structure and a slit structure on the floor surface side. Alternatively, an automobile floor spacer in which a shock absorbing material having a protruding structure is integrated by fitting.
【請求項2】 硬質発泡プラスチックが、発泡性熱可塑
性樹脂粒子を所定の密度に一次発泡したのち、金型に充
填し、スチーム等の加熱により成形され、密度が10k
g/m3 以上200kg/m3 以下の発泡成形品であっ
て、衝撃吸収材及びフロアスペーサが同一の素材からな
る請求項1記載の自動車用フロアスペーサ。
2. A rigid foamed plastic is first foamed with expandable thermoplastic resin particles to a predetermined density, then filled in a mold and molded by heating with steam or the like to have a density of 10 k.
The foam floor molded article of g / m 3 or more and 200 kg / m 3 or less, wherein the shock absorber and the floor spacer are made of the same material.
【請求項3】 衝撃吸収材が硬質発泡プラスチック成形
品であって、衝撃吸収材とフロアスペーサとの嵌合が、
低密度側が凹構造で高密度側が凸構造となる請求項1又
は2に記載の自動車用フロアスペーサ。
3. The shock absorbing material is a hard foam plastic molded product, and the shock absorbing material and the floor spacer are fitted together.
The automobile floor spacer according to claim 1 or 2, wherein the low density side has a concave structure and the high density side has a convex structure.
JP2001316740A 2001-10-15 2001-10-15 Automotive floor spacer and manufacturing method thereof Expired - Fee Related JP4059655B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001316740A JP4059655B2 (en) 2001-10-15 2001-10-15 Automotive floor spacer and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001316740A JP4059655B2 (en) 2001-10-15 2001-10-15 Automotive floor spacer and manufacturing method thereof

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2007018192A Division JP4021928B2 (en) 2007-01-29 2007-01-29 Shock absorber for automobile floor spacer

Publications (3)

Publication Number Publication Date
JP2003118460A true JP2003118460A (en) 2003-04-23
JP2003118460A5 JP2003118460A5 (en) 2007-03-15
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006088737A (en) * 2004-09-21 2006-04-06 Hayashi Telempu Co Ltd Shock absorbing structure and its manufacturing method
JP2006110982A (en) * 2004-09-14 2006-04-27 Daisen Kogyo:Kk Expansion-molded sound absorbing body and its manufacturing method
JP2007083902A (en) * 2005-09-22 2007-04-05 Sekisui Plastics Co Ltd Lower limb impact absorbing pad for vehicle
JP2007083904A (en) * 2005-09-22 2007-04-05 Sekisui Plastics Co Ltd Vehicle floor spacer
JP2007261190A (en) * 2006-03-29 2007-10-11 Sekisui Plastics Co Ltd Molding die and foamed molded article
WO2007123232A1 (en) 2006-04-25 2007-11-01 Sekisui Plastics Co., Ltd. Floor spacer for vehicle and vehicle interior structure
JP2009040294A (en) * 2007-08-10 2009-02-26 Jsp Corp Impact absorption member
JP2010105290A (en) * 2008-10-30 2010-05-13 Sekisui Plastics Co Ltd Shaping mold for foam molding provided with detachable piece and molding method using the same, and foamed resin molded product

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006110982A (en) * 2004-09-14 2006-04-27 Daisen Kogyo:Kk Expansion-molded sound absorbing body and its manufacturing method
JP2006088737A (en) * 2004-09-21 2006-04-06 Hayashi Telempu Co Ltd Shock absorbing structure and its manufacturing method
JP4533709B2 (en) * 2004-09-21 2010-09-01 林テレンプ株式会社 Shock absorbing structure and manufacturing method of shock absorbing structure
JP2007083902A (en) * 2005-09-22 2007-04-05 Sekisui Plastics Co Ltd Lower limb impact absorbing pad for vehicle
JP2007083904A (en) * 2005-09-22 2007-04-05 Sekisui Plastics Co Ltd Vehicle floor spacer
JP2007261190A (en) * 2006-03-29 2007-10-11 Sekisui Plastics Co Ltd Molding die and foamed molded article
WO2007123232A1 (en) 2006-04-25 2007-11-01 Sekisui Plastics Co., Ltd. Floor spacer for vehicle and vehicle interior structure
JP2009040294A (en) * 2007-08-10 2009-02-26 Jsp Corp Impact absorption member
JP2010105290A (en) * 2008-10-30 2010-05-13 Sekisui Plastics Co Ltd Shaping mold for foam molding provided with detachable piece and molding method using the same, and foamed resin molded product

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