JP2008167915A - Shift preventing structure of carpet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shift preventing structure of a carpet which is capable of surely preventing a shift irrespective of the hardness or thickness of a carpet or a mat. <P>SOLUTION: A lower side sound shielding layer 21 provided with many locking projections 21a on the upper surface and an upper side fiber layer 22 backed by a backing layer 26 provided with many locking projections 26a on the lower surface are laminated through a layer 23 to be locked. The locking projections 21a on the upper surface of the lower side layer 21 and the locking projections 26a of the backing layer 26 on the lower surface of the upper side fiber layer 22 enter the layer 23 to be locked and lock the layer 23 to be locked, and the position shift of the lower side layer 21 and the upper side fiber layer 22 is prevented. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to carpets and mats laid on the floor of vehicles such as automobiles, trains and aircraft, carpets and mats laid on the floor of buildings and hallways, chair mats for computer operations, and room entrances and exits. The present invention relates to a carpet slip prevention structure applied to a floor mat laid on a floor, a floor mat laid in an elevator or in front of an opening / closing door of an elevator hall, and an entrance mat.

  Conventionally, various means for preventing mat displacement have been proposed. One of them is a deviation preventing means applied to an automobile mat as shown in FIG. The deviation preventing means is a deviation preventing protrusion 2 formed on the back surface of the mat 1. However, the automobile floor 3 has a soundproof structure in which a sound insulation layer 5 made of an asphalt-based sheet is provided on an iron plate 4 and a sound absorption layer 6 made of an air cushion sheet, glass wool, felt or the like is further laminated thereon. Therefore, it was not possible to prevent sufficient displacement by using only the protrusion 2 for preventing displacement formed on the back surface of the automobile mat 1.

  Also, mats placed on the floors of ordinary houses are often carpeted on the floor surface, and even when mats are placed on this carpet, it is possible to prevent slippage with just the protrusions on the back of the mat. could not.

  In particular, in the case of a mat for an automobile, the displacement not only causes a problem that dust, dirt, dust, etc. on the mat are scattered on the floor of the automobile. This may lead to the fact that the brake pedal cannot be operated in an emergency, and the prevention thereof is very important from the viewpoint of traffic safety.

  For these reasons, not only the protrusions on the back surface of the mat but also the following means for preventing the displacement of the mat have been used in combination to prevent the displacement of the mat, especially the displacement of the mat for automobiles. 4 includes an eyelet hole 9 formed at the edge of the automobile mat 1 and a hook 7 fixed on the iron plate 4 of the automobile floor 3 with the bolts 8. The tip of the hook 7 of the automobile floor surface 3 is fitted into the eyelet hole 9 of the part and hooked to prevent the deviation.

  As another conventional example, a string that is fixed to a car floor or a seat leg, with a hook female female attached to the tip, and a male hook female male is also attached to the edge of the automobile mat. A mat hook is prevented from slipping by fitting a hook female female at the tip of the string fixed to the floor or the leg of the seat with a hook female male at the mat edge. there were.

  However, in the above-described misalignment prevention means such as the eyelet holes and hooks, and the male and female of hook females, when a large force is applied to the mat or when it is removed, the eyelet holes and hook females are damaged, There were problems such as the string to which the female of the mail was attached was torn, or the mat itself was damaged from the eyelet hole part of the mat or the part of the hook female to which the male was attached.

  Even if the mat or the slip prevention means is not damaged, to attach the slip prevention means to the mat, it is necessary to bend down, and in the case of an automobile matton, the mat is placed at a predetermined position. Since it cannot be installed unless it is placed, the installation work is very complicated.

  Under such circumstances, the present inventor has provided a mat misalignment prevention structure that can easily and reliably prevent mat misalignment (see Patent Document 1).

  The misalignment prevention structure shown in FIG. 5 is characterized in that the carpet 11 is provided with a mat storage portion 12 formed according to the outer shape of the mat 10, and the mat 10 is fitted into the mat storage portion 12. When the mat 10 is inserted, the mat 10 is surrounded and captured by the mat storage portion 12 formed by molding the carpet 11 corresponding to the outer shape of the mat 10, and a large external force is applied in the displacement direction of the mat 10. Even if it does, it does not shift easily.

  Further, according to this misalignment prevention structure, it is only necessary to fit the mat 10 into the mat storage portion 12, and as in the conventional misalignment prevention means, the waist is bent and the hook frame is fitted, or the eyelet hole on the periphery of the mat is fitted. There is no need for troublesome work such as inserting a hook.

Furthermore, according to this shift prevention structure, when the mat 10 is taken out from the mat storage portion 12, it is only necessary to grasp the edge of the mat 10 (or the tape 13 for taking out) and pull it up from the mat storage portion 12, so that the carpet 11 There is an effect that the mat 10 is not damaged when the mat 10 is inserted into or taken out of the mat storage unit 12.
JP 2001-224484 A

  However, since the mat 10 is captured by the mat storage portion 12 of the carpet 11 in the case of the above-described displacement prevention structure, the mat storage portion 12 exhibits a certain capturing force. Therefore, when the mat 10 has a large area like a carpet laid on the floor surface, the mat itself needs to have a certain degree of hardness and rigidity. .

  The present invention has been made in view of such technical problems, and proposes a carpet slip prevention structure that can reliably prevent slippage regardless of the hardness and thickness of the carpet and mat. It is the purpose.

  In order to achieve the above object, the invention according to claim 1 is the structure for preventing the slippage of the carpet installed on the floor surface, wherein the lower layer is provided with a number of locking projections on the upper surface, and the The upper fiber layer backed by the backing layer provided with the locking protrusions is laminated via the locked layer, and the locking protrusion on the upper surface of the lower layer and the backing layer on the lower surface of the upper fiber layer are locked. A carpet slip prevention structure characterized in that protrusions enter into the locked layer to lock the locked layer and prevent the lower layer and the upper fiber layer from misaligning each other. Was the gist.

  According to the second aspect of the present invention, when the lower layer and the upper fiber layer are laminated via the locked layer, the positions of the locking protrusions on the upper surface of the lower layer and the locking protrusions on the lower surface of the upper fiber layer are shifted. The carpet shift prevention structure according to claim 1, wherein the carpet is alternately arranged.

  The gist of the invention according to claim 3 is the carpet slip prevention structure according to claim 1 or 2, wherein the lower layer and the upper fiber layer are separable.

  The invention according to claim 4 is characterized in that the upper fiber layer is composed of a fiber base material into which a pile yarn is driven and a backing layer that backs the back surface of the fiber material. The gist of the carpet's slip prevention structure.

  The gist of the invention according to claim 5 is the carpet slip prevention structure according to any one of claims 1 to 4, wherein the backing layer is made of a foamed resin layer.

  The gist of the invention according to claim 6 is the carpet slip prevention structure according to any one of claims 1 to 3, wherein the lower layer is made of a foamed resin layer.

  The invention described in claim 7 is characterized in that the locked layer is made of one kind selected from nonwoven fabric, woven fabric, knitted fabric, paper, felt, foamed resin layer, and net, or a composite thereof. The gist of the carpet slip prevention structure according to any one of 3 is used.

  The gist of the invention according to claim 8 is the carpet slip prevention structure according to claim 7, wherein the locked layer is made of a nonwoven fabric.

  According to the carpet slip prevention structure of the present invention, the upper fiber layer backed by the backing layer provided with a number of locking projections on the lower surface is locked to the lower layer provided with a number of locking projections on the upper surface. When laminated through the layers, the locking protrusions on the upper surface of the lower layer and the locking protrusions of the backing layer on the lower surface of the upper fiber layer enter the locked layer to lock the locked layer, Misalignment between the lower layer and the upper fiber layer can be reliably prevented. Further, according to the carpet slip prevention structure, the carpet slippage can be surely prevented regardless of the hardness and thickness of the carpet and mat.

  In addition, when the carpet slip prevention structure of the present invention is applied to an automobile, the lower sound insulation layer is used as a carpet laid on the automobile floor, and the upper fiber layer is used as an automobile mat placed thereon. . In this case, the upper fiber layer has a plurality of locking projections of the lower sound insulating layer and the upper fiber layer that enter into the locked layer disposed between the lower sound insulating layer and the upper fiber layer. There is an advantage that the layer can be locked and the displacement with the upper fiber layer can be surely prevented.

  On the other hand, when the carpet slippage prevention structure of the present invention is applied to a carpet laid on the floor surface of a building or a hallway, the entire carpet structure of the present invention is used as a carpet laid on the floor surface. It can be used as a carpet for laying the side sound insulation layer on the floor, and as a floor mat for placing the upper fiber layer thereon. In this case as well, the lower sound insulating layer and the upper fiber layer lock the locked layer in which a large number of locking protrusions provided on the lower surface or the upper surface are arranged between the lower sound insulating layer and the upper fiber layer. And there exists an advantage that the position shift of a lower side sound-insulation layer and an upper side fiber layer can be prevented reliably.

  The invention according to each claim configured as described above will be described in accordance with the embodiments shown in the drawings. FIG. 1 shows an example of a carpet according to claim 1. This carpet is laid on the floor surface of the interior of a house or automobile cabin. In addition to the above-mentioned displacement prevention performance, this carpet has excellent soundproof performance, a function that can absorb and remove static electricity charged on the human body, and deodorization. It also has an antiallergen action.

  When the carpet slippage prevention structure shown in FIG. 1 is applied to an automobile, the lower sound insulation layer is used as a carpet laid on the automobile floor, and the upper fiber layer is used as an automobile mat placed thereon. When applied to a carpet laid on the floor surface of a room or a hallway of a building, in addition to the case where the entire carpet structure of the present invention is used as a carpet laid on the floor surface, the lower sound insulation layer is provided on the floor surface. As a carpet laid on the floor, and as a floor mat on which the upper fiber layer is placed.

  The carpet 20 shown in FIG. 1 includes a lower sound insulating layer 21 and an upper fiber layer 22 laminated via a locked layer 23. The lower sound insulating layer 21 is made of a foamed sheet formed by foaming a resin such as styrene-butadiene-styrene copolymer (SBS), polyethylene, polypropylene, or polyethylene. The sheet is filled with inorganic fillers such as mica flakes and calcium carbonate, and has excellent vibration damping properties and sound insulation properties. In the illustrated example, a foam sheet formed by filling SBS with mica flakes and calcium carbonate and foaming into a closed cell type with a foaming agent was used as the lower sound insulating layer 211. A number of locking projections 21 a are provided on the upper surface of the lower sound insulating layer 21.

  On the other hand, the upper fiber layer 22 shown in FIG. 1 includes a fiber base material 24 into which a pile yarn 25 is driven and a backing layer 26 that backs the back surface of the fiber base material 24. Nonwoven fabric, woven fabric, knitted fabric, paper, or felt can be used for the fiber base material 24, but the nonwoven fabric is preferable from the viewpoint of handleability and cost. As the nonwoven fabric, for example, a nonwoven fabric containing antibacterial deodorant fibers in which antibacterial deodorant particles obtained by coating the surface of photocatalyst particles such as titanium, cerium, zinc, and copper with a fluorine-based porous layer are attached to the fiber surface, or a conventionally known antibacterial agent It is preferable to use an antibacterial non-woven fabric such as a non-woven fabric that is applied or sprayed together with a binder to adhere to the surface of the constituent fiber because it efficiently absorbs bad odor in the room and decomposes or removes it.

  Further, as shown in FIG. 2 and FIG. 3, for example, the fiber base material 24 includes a core portion made up of a yarn 28 containing a large number of phthalocyanine fibers and a yarn 29 containing conductive fibers, and a natural portion around the core portion. It is also possible to include a composite yarn 31 in which a sheath portion is constituted by a yarn 30 made of fiber, synthetic fiber, semi-synthetic fiber or regenerated fiber. Thereby, an antibacterial and antiallergen effect and a conductive effect can be obtained.

  The conductive fiber contained in the composite yarn 31 is not particularly limited. For example, the main fiber is inorganic fiber such as carbon fiber, metal fiber, or conductive ceramic fiber, and synthetic fiber. Copper, silver, Examples thereof include a plating fiber plated with a metal such as aluminum, a fiber kneaded with a metal such as copper, silver, or aluminum, or a fiber containing a conductive resin in the fiber component.

  Similarly, the pile yarn 25 can include the composite yarn 31 shown in FIGS. 2 and 3. If the composite yarn 31 is included in both the fiber base material 24 and the pile yarn 25, the effect can be further improved. In particular, antibacterial, antiallergen, and conductive effects can be obtained.

  The pile yarn 25 is driven so as to be substantially U-shaped from the front side of the fiber base material 24 made of non-woven fabric, and a foamed resin layer 27 (open cell type) made of SBR is provided on the back side of the fiber base material 24 to The pile yarn 25 is prevented from coming off. A backing layer 26 is provided on the back side of the foamed resin layer 27 through a non-woven fabric layer 28 having sound absorption properties.

  The backing layer 26 for backing the back surface of the fiber base material 24 is made of a foamed sheet formed by foaming a resin such as SBS, polyethylene, polypropylene, or polyethylene. The sheet is filled with an inorganic filler such as mica flakes and calcium carbonate, and has excellent vibration damping properties and sound absorbing properties. In the example shown in the figure, a foam sheet formed by filling SBS with mica flakes and calcium carbonate and foaming into an open-cell type with a foaming agent was used as the backing layer 26. A number of locking projections 26 a are provided on the lower surface of the backing layer 26.

  The backing layer 26 is provided with a large number of through holes 26b penetrating the front and back surfaces. For this reason, innumerable sound absorbing holes (not shown) are formed on the inner surface of each through hole 26b. That is, since the backing layer 26 has an open cell structure in which resin is foamed, each foamed portion communicates with the through hole, and an infinite number of sound absorbing holes (not shown) are opened in the through hole 26b. The sound propagated to the backing layer 26 is absorbed through the through hole 26b, through the inner wall of the through hole 26b, and through a myriad of sound absorbing holes (not shown) opened in the through hole 26b. An excellent sound absorbing effect will be exhibited.

  The locked layer 23 is made of one or a composite selected from nonwoven fabric, woven fabric, knitted fabric, paper, felt, foamed resin layer, and net, and is between the lower layer 21 and the upper fiber layer 22, The respective locking projections 21a and 26a on the upper surface of the lower sound insulation layer 21 and the lower surface of the upper fiber layer 22 enter the locked layer 23 to lock it, thereby the lower layer 21 and the upper fiber layer 22 are locked. The fiber layer 22 has a function of preventing mutual positional deviation. In the illustrated example, a nonwoven fabric was used as the locked layer 23.

  In the soundproof carpet 10 of the present invention, when the lower sound insulating layer 21 and the upper fiber layer 22 are laminated via the locked layer 23, the locking protrusion 21a and the upper fiber layer on the upper surface of the lower sound insulating layer 21 are stacked. The positions of the locking projections 26a on the lower surface of 22 are shifted and arranged alternately. Accordingly, the locked layer 23 is reliably locked by the locking protrusions 21a and 26a protruding from the upper surface of the lower sound insulating layer 11 and the lower surface of the upper fiber layer 12, respectively. For this reason, the lower sound insulating layer 21, the upper fiber layer 22, and the locked layer 23 do not need to be basically joined with an adhesive or the like. However, when long-term unity is required, the components can be joined with an adhesive or the like.

  Further, as described above, the lower sound insulating layer 21, the upper fiber layer 22, and the locked layer 23 do not basically need to be joined with an adhesive or the like, depending on the use or the upper fiber layer. When the upper fiber layer 22 is removed for the purpose of cleaning 22, the upper fiber layer 22 can be separated simply by lifting it.

  The scope of the present invention is defined in “Claims”, and all modifications and forms included in the scope can be adopted.

It is a principal part expanded sectional view which shows the carpet of this invention. It is a principal part enlarged view which shows the composite yarn contained in the upper side fiber layer of this invention. It is a principal part expanded sectional view of a composite yarn similarly. It is a principal part expanded sectional view which shows the conventional slippage prevention structure of a carpet. It is a principal part expanded sectional view which shows the conventional slippage prevention structure of a carpet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 20 ... Carpet 21 ... Lower sound-insulating layer 21a ... Locking protrusion 22 ... Upper fiber layer 23 ... Locked layer 24 ... Fiber base material 25 ... Pile yarn 26 .... Backing layer 26a ... Locking protrusion 26b ... Through hole 27 ... Foamed resin layer 28 ... Nonwoven fabric

Claims (8)

A carpet slip prevention structure installed on the floor,
A lower layer provided with a large number of locking projections on the upper surface and an upper fiber layer lined with a backing layer provided with a large number of locking projections on the lower surface are laminated via a locked layer,
The locking protrusion on the upper surface of the lower layer and the locking protrusion on the backing layer on the lower surface of the upper fiber layer enter the locked layer to lock the locked layer, and the lower layer and the upper fiber layer A carpet misalignment prevention structure characterized by preventing mutual misalignment. When the lower layer and the upper fiber layer are laminated via the locked layer, the positions of the locking protrusions on the upper surface of the lower layer and the locking protrusions on the lower surface of the upper fiber layer are shifted and arranged alternately. The carpet misalignment prevention structure according to claim 1. 3. The carpet slip prevention structure according to claim 1, wherein the lower layer and the upper fiber layer are separable. The carpet misalignment prevention structure according to any one of claims 1 to 3, wherein the upper fiber layer includes a fiber base material into which a pile yarn is driven and a backing layer that backs the back surface of the fiber material. The carpet slip prevention structure according to any one of claims 1 to 4, wherein the backing layer comprises a foamed resin layer. The carpet misalignment prevention structure according to any one of claims 1 to 3, wherein the lower layer is made of a foamed resin layer. The carpet according to any one of claims 1 to 3, wherein the locked layer is made of one kind selected from nonwoven fabric, woven fabric, knitted fabric, paper, felt, foamed resin layer, and net, or a composite thereof. Prevents misalignment. The structure for preventing slippage of a carpet according to claim 7, wherein the locked layer is made of a nonwoven fabric.

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