CN106346872A - 一种改进的仪表板表皮 - Google Patents

一种改进的仪表板表皮 Download PDF

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CN106346872A
CN106346872A CN201610703265.7A CN201610703265A CN106346872A CN 106346872 A CN106346872 A CN 106346872A CN 201610703265 A CN201610703265 A CN 201610703265A CN 106346872 A CN106346872 A CN 106346872A
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instrument panel
panel surfaces
layer
improved instrument
corium
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邵杰
曾诚
侯剑锋
顾英杰
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Shanghai Yanfeng Jinqiao Automotive Trim Systems Co Ltd
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Shanghai Yanfeng Jinqiao Automotive Trim Systems Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
    • B32B9/025—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch comprising leather
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/046—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • 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
    • B60R13/02—Internal Trim mouldings ; Internal Ledges; Wall liners for passenger compartments; Roof liners
    • B60R13/0256—Dashboard liners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/02—2 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

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Abstract

本发明涉及一种改进的仪表板表皮，其包括彼此连接的表层和底层，该表层为真皮的乳头层，该底层为非真皮层，表层和底层上不具有弱化结构。本发明所提供的改进的仪表板表皮，其完全不具有任何弱化结构，通过片去真皮的疏松层并保留乳头层，然后在乳头层的背面覆合非真皮层既可完全满足具有无缝安全气囊的仪表板表皮外观要求，同时也可以确保仪表板表皮按照期望的轨迹撕裂，避免对乘员造成伤害，满足安全性需求。

Description

一种改进的仪表板表皮
技术领域
本发明涉及一种汽车内饰，更具体地涉及一种改进的仪表板表皮。
背景技术
仪表板表皮作为汽车内饰被广泛应用于汽车中。出于美观和舒适度的要求，越来越多的仪表板表皮选择完整的真皮材料。相较于有缝安全气囊，无缝安全气囊更加美观。即在仪表板表皮的背面设有预先弱化形成的刻痕，一方面有利于气囊爆破时，仪表板表皮沿着刻痕撕裂，便于气囊展开；另一方面在仪表板表皮的外观面上不会有明显的缝隙以影响美观。
但是，技术人员发现如果仪表板表皮背面刻痕的弱化残留厚度太小，受长期温度影响，仪表板表皮老化导致仪表板外观面上对应于刻痕的位置呈现凹陷，无法满足无缝安全气囊的外观要求；如果仪表板表皮背面刻痕的弱化残留厚度太大，则仪表板表皮将无法按照设定的弱化轨迹撕裂，甚至于使得气囊袋体从周边膨胀，导致气囊盖板破碎，对乘员造成伤害。
发明内容
为了解决上述现有技术中存在的仪表板表皮背面的刻痕带来的问题，本发明旨在提供一种改进的仪表板表皮，即可以保证安全气囊爆破时仪表板表皮沿期望的轨迹撕裂展开，又可以消除表皮老化造成的表皮外观面刻痕处凹陷的问题。
本发明所述的改进的仪表板表皮，其包括彼此连接的表层和底层，该表层为真皮的乳头层，该底层为非真皮层，表层和底层上不具有弱化结构。
该表层的厚度为0.3mm-0.7mm。
非真皮层由纺织材料形成。
非真皮层由无纺布形式。
非真皮层由泡棉材料形成。
非真皮层由毛毡材料形成。
表层和底层通过胶水连接。
该胶水为溶剂型胶水。
该胶水为水性胶水。
该胶水为热熔胶。
本发明所提供的改进的仪表板表皮，其完全不具有任何弱化结构，通过片去真皮的疏松层并保留乳头层，然后在乳头层的背面覆合非真皮层既可完全满足具有无缝安全气囊的仪表板表皮外观要求，同时也可以确保仪表板表皮按照期望的轨迹撕裂，避免对乘员造成伤害，满足安全性需求。
附图说明
图1是根据本发明的改进的仪表板表皮的结构示意图；
图2是根据本发明的改进的仪表板表皮的具体应用示例。
具体实施方式
下面结合附图，给出本发明的较佳实施例，并予以详细描述。
图1是根据本发明的改进的仪表板表皮10的结构示意图，其包括彼此连接的表层11和底层12，该表层11为厚度为0.3mm-0.7mm的真皮的乳头层，相对应地，该底层12为厚度为0.7mm-0.3mm的非真皮层，表层和底层上不具有弱化结构。显然，由于不需要在仪表板表皮10上进行刻痕，该仪表板表皮即使经过长期高温影响而老化也不会在外观面上形成凹陷，从而满足无缝安全气囊的外观要求。
下面根据上文给出的仪表板表皮的表层和底层的厚度范围及可选材料给出不同的实施例，以说明不同仪表板表皮测得的拉断力范围。
实施例1
仪表板表皮10包括通过溶剂型胶水覆合的0.5mm厚的真皮的乳头层和0.5mm厚的由涤纶纤维和粘胶纤维形成的无纺布层。该真皮的乳头层和无纺布层上均不具有弱化结构。通过常规测力计测量，该仪表板表皮的拉断力为70-120N。该仪表板表皮10覆合在硬质骨架30上，该硬质骨架上具有骨架刻痕20，如图2所示。
实施例2
仪表板表皮包括通过水性胶水覆合的0.7mm厚的真皮的乳头层和0.3mm厚的由涤纶纤维和粘胶纤维形成的无纺布层。该真皮的乳头层和无纺布层上均不具有弱化结构。通过常规测力计测量，该仪表板表皮的拉断力为65-115N。该仪表板表皮覆合在由发泡形成的软质层上，该软质层上具有软质刻痕。
实施例3
仪表板表皮包括通过热熔胶覆合的0.3mm厚的真皮的乳头层和0.7mm厚的由涤纶纤维形成的无纺布层。该真皮的乳头层和无纺布层上均不具有弱化结构。通过常规测力计测量，该仪表板表皮的拉断力为65-85N。该仪表板表皮覆合在由立体织物形成的软质层上，该软质层上具有软质刻痕。
比较例
常规仪表板表皮包括具有乳头层和疏松层的真皮，厚度通常为1mm，真皮背面通过弱化形成刻痕，刻痕的残留厚度通常为0.6mm。通过常规测力计测量，该仪表板表皮的拉断力为80-160N。该仪表板表皮覆合在硬质骨架上，硬质骨架上具有骨架刻痕。
当气囊爆破时，气囊袋体展开的压力使软质层/骨架沿刻痕撕裂，比较例中的仪表板表皮沿着真皮背面的刻痕撕裂，而实施例1-实施例3的仪表板表皮由于拉断力均小于或等于比较例中的仪表板表皮的拉断力，所以虽然实施例中的仪表板表皮不具有背面刻痕，但同样可沿着与真皮刻痕相似的期望轨迹撕裂，确保气囊盖板顺利打开，避免对乘员造成伤害，满足安全性需求。
进一步地，根据本发明的仪表板表皮的拉断力小于或等于现有的仪表板表皮的拉断力，均可以使其沿着与真皮刻痕相似的期望轨迹撕裂。特别地，在现有本领域可选真皮范围内，在头尾方向上，根据本发明的仪表板表皮的拉断力是现有的仪表板表皮的拉断力的35％到66％；在垂直于头尾方向上，根据本发明的仪表板表皮的拉断力是现有的仪表板表皮的拉断力的40％到62％。
应该理解，根据本发明的仪表板表皮的厚度与现有的仪表板表皮的厚度相当，以满足周边匹配的需要。在优选的实施例中，表层的厚度为0.3-0.7mm，通过片皮设备对真皮片皮操作形成。该片皮公差为+/-0.1mm，即当需要0.3mm厚度的表层时，片皮设备的参数可以选择为0.4mm。该片皮工艺的精度最高为+/-0.05mm，满足该厚度范围内的具体选择需求。当然，根据上述拉断力的数值关系，可以按照实际测量结果对真皮层的具体厚度进行选择。应该理解，该厚度不能设置为太小，因为太薄的乳头层无法遮盖仪表板表皮背面的胶水，同时导致真皮的乳头层的缺陷放大，在具有拼接缝纫线的区域的缝纫针孔将变大且发生破损。
本发明的底层能够弥补真皮厚度降低的量，同时确保真皮在缝纫线位置不会导致外观问题，避免真皮在缝纫线对线和包覆的过程中，产生喷胶导致的颗粒痕迹外露和缝纫线针孔放大等包覆外观缺陷。该非真皮层可以由纺织材料、无纺布、泡棉材料或毛毡材料形成。由于表层(真皮)的性能略有差异，根据上述拉断力的数值关系，可以按照实际测量结果对非真皮层的材料和厚度进行具体选择。
以上所述的，仅为本发明的较佳实施例，并非用以限定本发明的范围，本发明的上述实施例还可以做出各种变化。即凡是依据本发明申请的权利要求书及说明书内容所作的简单、等效变化与修饰，皆落入本发明专利的权利要求保护范围。本发明未详尽描述的均为常规技术内容。

Claims (10)

1.一种改进的仪表板表皮，其特征在于，包括彼此连接的表层和底层，该表层为真皮的乳头层，该底层为非真皮层，表层和底层上不具有弱化结构。
2.根据权利要求1所述的改进的仪表板表皮，其特征在于，该表层的厚度为0.3mm-0.7mm。
3.根据权利要求1所述的改进的仪表板表皮，其特征在于，非真皮层由纺织材料形成。
4.根据权利要求1所述的改进的仪表板表皮，其特征在于，非真皮层由无纺布形式。
5.根据权利要求1所述的改进的仪表板表皮，其特征在于，非真皮层由泡棉材料形成。
6.根据权利要求1所述的改进的仪表板表皮，其特征在于，非真皮层由毛毡材料形成。
7.根据权利要求1所述的改进的仪表板表皮，其特征在于，表层和底层通过胶水连接。
8.根据权利要求7所述的改进的仪表板表皮，其特征在于，该胶水为溶剂型胶水。
9.根据权利要求7所述的改进的仪表板表皮，其特征在于，该胶水为水性胶水。
10.根据权利要求7所述的改进的仪表板表皮，其特征在于，该胶水为热熔胶。
CN201610703265.7A 2016-08-22 2016-08-22 一种改进的仪表板表皮 Pending CN106346872A (zh)

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CN109421823A (zh) * 2017-08-28 2019-03-05 上汽通用汽车有限公司 车辆皮质仪表板及其弱化加工方法
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109421823A (zh) * 2017-08-28 2019-03-05 上汽通用汽车有限公司 车辆皮质仪表板及其弱化加工方法
US11046278B2 (en) 2017-10-31 2021-06-29 Key Safety Systems, Inc. Cover assembly for an airbag module
WO2021117333A1 (ja) * 2019-12-09 2021-06-17 ＧＳＴ ＡｕｔｏＬｅａｔｈｅｒ Ｊａｐａｎ 合同会社 積層体

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