Car Floor Mats

Abstract

The utility model relates to a car floor mat with high heat insulation. The car floor mat comprises: a carpet layer; a non-breathable middle layer which is attached to the back of the carpet layer; an air retention layer composed of double Raschel fabric which is attached to the back of the middle layer; and a non-breathable bottom layer which is attached to the back of the air retention layer.

Description

Technical Field

[0001] The utility model relates to a car floor mat, in particular to a car floor mat with improved heat insulation. Background Art

[0002] As a car floor mat, there are known car floor mats of various structures. For example, Japanese Patent Laid-Open No. 2008-200288 (Patent Document 1) discloses a car floor mat having a laminated structure of a carpet layer.

[0003] The car floor mat disclosed in Patent Document 1 comprises at least a carpet layer having undulations formed by pile on the back side, a breathable waterproof layer arranged on the back side of the carpet layer, and an adhesive layer bonding the back side of the carpet layer and the waterproof layer, wherein the adhesive layer is formed in a mesh or line shape.

[0004] [Prior art literature]

[0005] [Patent Document]

[0006] Patent Document 1: Japanese Patent Application Publication No. 2008-200288. Utility Model Content

[0007] [New Issues to be Solved]

[0008] Although electric vehicles have attracted increasing attention in recent years, the use of air conditioning and heating in electric vehicles consumes the power of the driving battery, which shortens the driving range. Therefore, it is hoped that the efficiency of air conditioning and heating can be improved. In this regard, it can be inferred that floor mats that can exert high heat insulation properties can help improve the efficiency of air conditioning and heating.

[0009] The automobile floor mat disclosed in Patent Document 1 has an air-permeable waterproof layer and a mesh or thread-shaped adhesive layer laminated on the back side of a carpet layer in which pile yarns are embedded, thereby improving air permeability. Therefore, heat is easily dissipated, and this floor mat cannot be used for the purpose of exerting heat insulation.

[0010] Therefore, an object of the present invention is to provide a car floor mat with improved thermal insulation.

[0011] [Methods used to solve the problem]

[0012] The automobile floor mat of the utility model comprises: a carpet layer; a non-breathable middle layer which is attached to the back of the carpet layer; an air retaining layer composed of double raschel fabric which is attached to the back of the middle layer; and a non-breathable bottom layer which is attached to the back of the air retaining layer.

[0013] More preferably, the carpet layer comprises: a base fabric; pile yarns embedded in the base fabric; and a rubber layer coated on the back side of the base fabric to prevent the pile yarns from falling off; and a non-breathable intermediate layer is bonded to the back side of the rubber layer.

[0014] It is more preferred that the air retaining layer is composed of a first woven fabric, a second woven fabric, and a connecting thread connecting the first woven fabric and the second woven fabric in the up-down direction.

[0015] More preferably, the average fineness of the connecting thread is 200 to 1500 dtex.

[0016] It is more preferred that the height of the air retaining layer in the vertical direction is 1 to 20 mm.

[0017] [New efficacy]

[0018] According to the automobile floor mat of the utility model, since the air retaining layer is wrapped from top to bottom by the non-air-permeable middle layer and bottom layer, the air is retained in the air retaining layer, thereby exerting a heat insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic cross-sectional view of a floor mat according to Embodiment 1 of the present invention.

[0020] Figure 2 A perspective view schematically showing a double Raschel fabric.

[0021] Figure 3 This is a schematic cross-sectional view of a floor mat according to Embodiment 2 of the present invention.

[0022] Description of Reference Numerals

[0023] 1 Carpet layer

[0024] 2 Middle Layer

[0025] 2a,3a Back

[0026] 3 Air retention layer

[0027] 4 Bottom layer

[0028] 11 Base fabric

[0029] 12 Pile Yarn

[0030] 13 Rubber layer

[0031] 31 First Fabric

[0032] 32 Second Fabric

[0033] 33 Connection line

[0034] 100,100A Car Floor Mats

[0035] L Height (thickness). DETAILED DESCRIPTION

[0036] The embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the same or equivalent parts in the drawings are marked with the same symbols and their descriptions are omitted.

[0037] <Implementation method 1>

[0038] Reference Figure 1 The following will describe the car floor mat according to Embodiment 1. Figure 1 In the figure, arrow X indicates the left-right direction, and arrow Y indicates the up-down direction. The same applies to the following figures.

[0039] like Figure 1 As shown, the car floor mat 100 comprises: a carpet layer 1; a non-breathable middle layer 2, which is attached to the back side 1a of the carpet layer 1; an air retention layer 3 composed of a double raschel fabric, which is attached to the back side 2a of the middle layer 2; and a non-breathable bottom layer 4, which is attached to the back side 3a of the air retention layer 3.

[0040] Specifically, the carpet layer 1 is composed of a base fabric 11 , pile yarns 12 embedded in the base fabric 11 , and a rubber layer 13 coated on the back surface 11 a of the base fabric 11 to prevent the pile yarns 12 from falling off.

[0041] The base fabric 11 is, for example, a resin sheet, which is formed of a hard material with a high melting point, such as polypropylene. The material of the pile yarn 12 is, for example, nylon, polypropylene, polyester, polyethylene, etc. Typically, the rubber layer 13 is latex rubber. The base fabric 11, the pile yarn 12 and the rubber layer 13 form a tufted carpet. The tufted carpet is formed by inserting the pile yarn 12 into the base fabric 11 by a tufting machine (needle), and applying latex rubber 13 on the back side 11a of the base fabric 11 to prevent the pile yarn 12 from falling off.

[0042] The middle layer 2 is bonded to the back side 1a of the rubber layer 13 (back side of the carpet layer 1). The middle layer 2 is made of a non-breathable thin film material. The typical material is polyethylene, but any non-breathable material is not limited to polyethylene.

[0043] An air retaining layer 3 is bonded to the back surface 2a of the intermediate layer 2. The air retaining layer 3 is made of a three-dimensional fabric, and is typically made of a publicly known double Raschel fabric.

[0044] Figure 2 An example of a double Raschel fabric is shown. Figure 2The double Raschel fabric (air retaining layer 3) is composed of a first fabric 31, a second fabric 32, and a connecting line 33 connecting the first fabric 31 and the second fabric 32 in the up-down direction. The first fabric 31 is attached to the back surface 2a of the intermediate layer 2. The first fabric and the second fabric can be mesh-shaped. The connecting lines 33 extend up and down so that the connecting lines extend parallel to each other when viewed from the front, and cross each other when viewed from the side. It is not limited to this, and it can also be a state where the connecting lines extend parallel to each other when viewed from the front and when viewed from the side.

[0045] The material of the first woven fabric 31 and the second woven fabric 32 is, for example, polyester, nylon, acrylic, etc. The material of the connecting thread 33 is typically polyester, but may also be polypropylene, nylon, etc.

[0046] The average fineness of the connecting thread 33 is set to be in the range of 200 to 1500 dtex. Since it is necessary to exert elasticity as a floor mat, it is preferred that the fiber diameter is larger than that of the connecting thread of a general double Raschel fabric. Figure 1 As shown, the height (thickness) L of the air retaining layer 3 in the up-down direction is specified to be in the range of 1 to 20 mm.

[0047] The back side 3a of the air retaining layer 3 (the back side of the second fabric 32) is bonded with a non-breathable base layer 4. The base layer 4 is preferably made of a styrene-based thermoplastic elastomer (styrene-butadiene block copolymer (SBS)) or an olefin-based thermoplastic elastomer (TPO). The non-breathable material is not limited to these.

[0048] like Figure 1 As shown, the air α in the air retention layer 3 is blocked by the non-air-permeable middle layer 2 and the bottom layer 4. Generally speaking, the double raschel fabric is a material with high air permeability to the extent that it can be used for hats or sportswear. In this embodiment, the air permeability of the double raschel fabric is blocked by sandwiching the non-air-permeable middle layer and the bottom layer from above and below, forming an air retention layer 3 that retains a large amount of air α.

[0049] In addition, since the connection line 33 is vertically arranged, appropriate cushioning properties can also be obtained. That is, the automobile floor mat of the present invention has both high heat insulation and appropriate cushioning properties.

[0050] In addition, although not shown in the figure, the edge of the car floor mat 100 may be processed into a closed air retaining layer by sticking or sewing a strip.

[0051] <Implementation method 2>

[0052] Reference Figure 3The car floor mat of Embodiment 2 is described below. The car floor mat 100A comprises: a carpet layer 1; a non-breathable middle layer 2 coated on the back of the carpet layer 1; an air-retaining layer 3 made of double raschel fabric bonded to the back 2a of the middle layer 2; and a non-breathable bottom layer 4 bonded to the back 3a of the air-retaining layer 3.

[0053] The carpet layer 1 is composed of a base fabric 11 and pile yarns 12 embedded in the base fabric 11. The middle layer 2 is composed of a rubber layer coated on the back side 11a of the base fabric 11 to prevent the pile yarns 12 from falling off. An air retaining layer 3 is bonded to the back side 2a of the middle layer 2.

[0054] That is, in the first embodiment, the middle layer 2 is bonded to the back side 1a of the rubber layer 13 of the carpet layer 1, but in the second embodiment, the rubber layer itself becomes the non-breathable middle layer 2. The other structures are the same as those in the first embodiment, and their description is omitted.

[0055] The structure of the automobile floor mat of the utility model can be applied to a floor carpet directly laid on the floor of the vehicle body, and can also be applied to a driver's or passenger's car mat (such as a driver's foot mat) detachably placed on the floor carpet.

[0056] Furthermore, the present invention is applicable not only to electric vehicles (EV) but also to vehicles equipped with electric motors (HEV, PHEV).

[0057] In addition, although one embodiment of the present invention has been described with reference to the drawings, the embodiments described with reference to the drawings are all examples, and various changes can be made within the same scope or an equivalent scope of the present invention.

[0058] [Industrial Applicability]

[0059] The utility model can be advantageously utilized as a car floor mat.

Claims

1. A car floor mat, characterized in that: have: Carpet layer; A non-breathable middle layer, which is attached to the back of the carpet layer: an air retaining layer composed of double Raschel fabric, which is attached to the back side of the middle layer; and A non-breathable bottom layer is attached to the back side of the air retaining layer.

2. The car floor mat according to claim 1, characterized in that: The carpet layer comprises: a base fabric; pile yarns embedded in the base fabric; and a rubber layer coated on the back of the base fabric to prevent the pile yarns from falling off; The air-impermeable intermediate layer is bonded to the back surface of the rubber layer.

3. The car floor mat according to claim 1 or 2, characterized in that: The air retaining layer is composed of a first fabric, a second fabric, and a connecting thread connecting the first fabric and the second fabric in the up-down direction.

4. The car floor mat according to claim 3, characterized in that: The average fineness of the connecting thread is 200 to 1500 dtex.

5. The car floor mat according to claim 3, characterized in that: The height of the air retaining layer in the vertical direction is 1 to 20 mm.

Images