Carpet
A washable rug with a detachable core material maintains shape and facilitates easy cleaning by detaching the core, solving the washing and shape retention challenges of vehicle seat cushions with reinforcing members.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- SOWA CO LTD
- Filing Date
- 2025-03-28
- Publication Date
- 2026-05-07
AI Technical Summary
Existing vehicle seat cushions that incorporate reinforcing members to prevent dirt and accidental rolling are difficult to wash and do not address the issue of the cushion itself becoming dirty.
A rug with a detachable core material made of a washable fabric and a ring-shaped steel material that maintains the external shape, featuring an opening for insertion and removal, preventing accidental curling and allowing easy washing.
The rug effectively maintains its shape and can be easily cleaned by detaching the core material when soiled, addressing the washing difficulty and shape retention issues of previous designs.
Smart Images

Figure 0007854747000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a rug suitable as a seat cushion for a vehicle or the like.
Background Art
[0002] For example, various cushions, mats, etc. placed on the seat surface of a seat have been proposed to improve sitting comfort and prevent dirt on the vehicle seat (see, for example, Patent Documents 1 to 3, etc.).
[0003] The vehicle seat cushion described in Patent Document 1 is made of a single-density closed-cell foam such as an EVA foam. This cushion is composed of a material having sufficient flexibility to deform under the user's weight and sufficient elasticity to return to its original state when the weight is removed. Therefore, it has the effect of being able to disperse the pressure on the buttocks when sitting. However, the vehicle seat cushion described in Patent Document 1 requires a thickness for the above-described effect. Therefore, when placed on the seat surface of a seat, it is convenient for a person of short stature, but in many cases, the eye line position becomes too high for a driver. For this reason, there may occur problems such as the need for seat height adjustment or difficulty in using it in a vehicle without seat height adjustment.
[0004] On the other hand, the vehicle seat cushions described in Patent Documents 2 and 3 include a seating portion where a driver or the like sits and a reinforcing member provided on the outer periphery of this seating portion. In the vehicle seat cushions described in Patent Documents 2 and 3, by configuring the seating portion to be relatively thin, it becomes possible to eliminate the trouble of seat height adjustment. Also, even if the seating portion is configured to be relatively thin, since it has a reinforcing member, problems such as accidentally rolling up are less likely to occur, and it becomes possible to prevent dirt on the seat.
Prior Art Documents
Patent Documents
[0005] [Patent Document 1] Special Publication No. 2015-504771 [Patent Document 2] Japanese Utility Model Publication No. 63-112853 [Patent Document 3] Japanese Utility Model Publication No. 63-124849 [Overview of the project] [Problems that the invention aims to solve]
[0006] However, while the vehicle seat cushions described in Patent Documents 2 and 3 can prevent the seat from getting dirty, they are difficult to wash due to the presence of reinforcing members, and do not address the case where the vehicle seat cushion itself, rather than the seat, becomes dirty.
[0007] In view of the above circumstances, the present invention aims to provide a rug that is designed to be easily washed while preventing accidental curling and other damage. [Means for solving the problem]
[0008] The present invention, which solves the above objective, comprises a flat mat body made of a washable fabric, Having a core material that maintains the external shape of the main body of the rug and is detachable from the main body of the rug, The aforementioned mat body is a bag-like shape with an opening formed therein. The aforementioned core material is Having spring properties It is made of ring-shaped steel material, The minimum width of the opening is smaller than the maximum width. Curvature It is possible, and the curvature In state Applicable It is characterized by being able to be inserted into and removed from the main body of the mat through the opening.
[0009] The floor covering of the present invention is not limited to items generally considered as floor coverings, such as seat cushions for automobiles and trains, or seat cushions for wheelchairs and chairs, which are placed underneath for sitting. For example, it also includes bath mats, pet sheets (liners), bed sheets, and disaster prevention mats and sheets. Furthermore, the washable fabric referred to herein includes all fabrics and also includes washable synthetic leather. In addition, part of the floor covering body may be made of polyethylene sheets or polyvinyl chloride sheets. Moreover, the core material is not limited in material, as long as it can maintain the external shape of the floor covering body in order to prevent the floor covering body from unintentionally curling up. For example, the core material may be made of steel such as a ring leaf spring, or it may be made of wire or resin.
[0010] According to the rug of the present invention, the core material maintains the external shape of the rug body, thus preventing accidental curling. Furthermore, since the core material is detachable from the rug body, if the rug body becomes dirty, the core material can be removed from the rug body and the rug body can be easily washed.
[0012] Furthermore, in the rug of the present invention, The aforementioned mat body has a front surface and a back surface, The front surface and the back surface may be made of different materials.
[0013] For example, the front surface material may be made of a microfiber material or the like, taking into consideration water absorption, heat retention, and cushioning properties, and the back surface material may be made of a polyester cushion mesh or the like, which is used in laundry nets, taking into consideration cushioning and breathability.
[0014] Furthermore, in the rug of the present invention, the rug body may have an external shape that is circular, elliptical, or rectangular with rounded corners.
[0015] By adopting this aspect, it becomes easier to maintain the overall outer shape of the mat body by the core material without any part being folded or dented.
Advantages of the Invention
[0018] According to the mat of the present invention, it is possible to provide a mat in which a device is made to enable easy washing while suppressing accidental curling and the like.
Brief Description of the Drawings
[0019] [Figure 1] It is a perspective view of a sheet cushion (mat) showing a first embodiment of the present invention. [Figure 2] It is a cross-sectional view of an outer peripheral portion of the sheet cushion shown in FIG. 1. [Figure 3] It is a perspective view showing a state where a core material is inserted into or taken out from a mat body shown in FIG. 1. [Figure 4] It is a perspective view showing a state where a mat body and a taken-out core material are made compact, as shown in FIG. 3. [Figure 5] It is a plan view showing a sheet cushion of a second embodiment of the present invention.
Modes for Carrying Out the Invention
[0020] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The mat of the present invention can be suitably used as a seat cushion for vehicles such as automobiles, but the application is not particularly limited. For example, it can also be used as a bus mat, a pet sheet (liner), a bed sheet, a disaster prevention mat or sheet, cushions for various chairs, a wheelchair cushion, a stadium seat cushion, a stretcher, and a yoga mat. In the embodiments described below, an example of a vehicle seat cushion 10 will be used for explanation.
[0021] Figure 1 is a perspective view of a seat cushion (mat) 10 showing a first embodiment of the present invention. In Figure 1, the front surface 310 is visible, while the back surface 320 (see Figure 2), which is the back side of the front surface 310, is hidden. Also, in Figure 1, a part of the mat body 3, which will be described in more detail later, is cut out. Figure 2 is a cross-sectional view of the outer periphery of the seat cushion 10 shown in Figure 1.
[0022] As shown in Figures 1 and 2, the seat cushion 10 of this embodiment has a mat body 3 and a core material 5.
[0023] The mat body 3 is a flat shape made of washable fabric, and in this embodiment, its external shape in plan view is a rectangular shape with rounded corners. The mat body 3 is also a bag-like shape having a front surface 310 and a back surface 320, and the back surface 320 is placed on the vehicle seat and the person sits on the front surface 310. An opening 3A (see Figure 3) is formed at the joint between the front surface material 31 that makes up the front surface 310 and the back surface material 32 that makes up the back surface 320, and a zipper 33 is provided to open and close this opening 3A.
[0024] The rug body 3 of this embodiment is composed of different materials for its front surface 310 and back surface 320. Specifically, the front surface material 31 constituting the front surface 310 is made of microfiber material, taking into consideration water absorption, heat retention, and cushioning properties. The back surface material 32 constituting the back surface 320 is made of polyester cushion mesh, which is used in laundry nets and the like, taking into consideration cushioning and breathability. The material of the rug body 3 is not particularly limited as long as it is washable, and it may be synthetic leather, or part of it may be a polyethylene sheet or a polyvinyl chloride sheet.
[0025] The core material 5 maintains the external shape of the rug body 3 and is detachable from the rug body 3. In this embodiment, the core material 5 is made of a ring leaf spring formed by connecting the ends with tape 51 (see Figure 3) to form a ring shape. Therefore, the core material 5 can be bent or folded compactly by overlapping multiple turns. In addition, since the core material 5 applies outward tension to the rug body 3, it is possible to further suppress unintentional curling of the rug body 3 and maintain the overall external shape of the rug body 3 more stably. The material of the core material 5 is not particularly limited as long as it can maintain the external shape of the rug body 3, and may be made of wire, resin, or hard rubber. If the core material 5 is made of a material that is difficult to bend, an opening 3A (see Figure 3) of a size that allows the core material 5 to be inserted into the rug body 3 without bending may be provided.
[0026] Figure 3 is a perspective view showing the insertion of the core material 5 into the mat body 3, or the removal of the core material 5 from the mat body 3, as shown in Figure 1.
[0027] To attach the core material 5 to the rug body 3, force is applied to the core material 5 to curve it into a long, narrow shape (like a gourd), as shown in Figure 3, and then it is inserted into the rug body 3 through the opening 3A. When the force applied to the core material 5 is released, the springy nature of the core material 5 applies tension that expands the rug body 3 outwards, maintaining the outer shape of the rug body 3. After that, the zipper 33 can be closed.
[0028] On the other hand, to remove the core material 5 from the mat body 3, open the zipper 33, apply force to the core material 5, and as shown in Figure 3, remove the core material 5 through the opening 3A while it is curved (flexed) into a long, narrow shape (like a gourd). In this way, since the core material 5 of the seat cushion 10 is detachable from the mat body 3, if the mat body 3 becomes dirty, the core material 5 can be easily removed and washed.
[0029] Figure 4 is a perspective view showing the mat body 3 and the removed core material 5 in a compact state, as shown in Figure 3.
[0030] As shown in Figure 4, the mat body 3 can be folded (into four in Figure 4), and the core material 5 can be folded in multiple layers (into three layers in Figure 4) to create a compact package.
[0031] Next, a second embodiment of the seat cushion 10 of the first embodiment shown in Figures 1 to 4 will be described. In the second embodiment described below, the differences from the first embodiment shown in Figures 1 to 4 will be the main focus of the description. Components with the same names as those in the first embodiment shown in Figures 1 to 4 will be denoted by the same reference numerals used so far, and redundant explanations may be omitted.
[0032] Figure 5 is a plan view showing the seat cushion 11 of the second embodiment. Note that in Figure 5, a portion of the mat body 3 is cut out to show the internal structure.
[0033] As shown in Figure 5, in the second embodiment, the seat cushion 11 has a loop-shaped core material housing section 34 formed on the outer circumference of the mat body 3. In the seat cushion 11 of this embodiment, the core material 5 is in a long, unconnected ring shape, and this core material 5 is inserted into the core material housing section 34 through an opening (not shown in Figure 5) that is opened and closed by a zipper 33.
[0034] In Figure 5, an example is shown in which the ends 52 of the core material 5 are inserted into the core material housing section 34 from both sides of the opening, and the joint 5A of these ends 52 is located on the opposite side of the opening. However, one end 52 of the core material 5 may be inserted into the core material housing section 34 from one side of the opening, so that the joint 5A of the end 52 is located at the opening. Furthermore, the core material 5 housed in the core material housing section 34 may have its ends 52, 52 overlapping, or there may be gaps between the ends 52, 52. Moreover, the mat body 3 of this embodiment does not have to be bag-shaped; for example, the portion enclosed by the core material housing section 34 can be made of a single (single-layer) fabric such as microfiber material or polyester cushion mesh.
[0035] In this embodiment as well, the core material 5 helps maintain the outer shape of the rug body 3, preventing it from curling up unintentionally. Furthermore, if the rug body 3 becomes dirty, it can be easily washed by opening the zipper 33 and removing the core material 5.
[0036] As described above, the seat cushions 10 and 11 prevent accidental curling by the core material 5, and the main body of the mat 3 can be easily washed if it gets dirty.
[0037] The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the claims. For example, in the embodiments described above, a rug body 3 having a rectangular shape with rounded corners (shape in plan view) was described, but the external shape of the rug body 3 is not particularly limited. However, if a rug body 3 with a rectangular, circular, or elliptical shape has an external shape with rounded corners, the core material 5 makes it easier to maintain the overall external shape of the rug body 3 without any part bending or denting.
[0038] Furthermore, although the above-described embodiment described an arrangement in which the opening 3A of the rug body 3 is opened and closed by a zipper 33, an arrangement in which the opening 3A is opened and closed using fasteners such as hooks or double-sided zippers may also be adopted. In addition, an arrangement in which the zipper 33 is provided around the entire outer circumference of the rug body 3 and the front material 31 and the back material 32 are connected by the zipper 33, or the opening 3A may be provided in the back material 32, etc.
[0039] Furthermore, even if a constituent element is included only in the description of each of the embodiments described above, that constituent element may be applied to other embodiments as well. I will also add some information about other types of rugs. Other rugs consist of a flat rug body made of washable fabric, Having a core material that maintains the external shape of the main body of the rug and is detachable from the main body of the rug, The main body of the mat has a loop-shaped core material housing formed on its outer circumference. The core material is characterized by being elongated and being inserted into the core material housing through an opening in the core material housing. [Explanation of symbols]
[0040] 10, 11 Seat cushion (mat) 3. The main body of the mat 310 Front side 31 Front surface material 320 back side 32 Backing material 33 zippers 34 Core material housing section 3A aperture 4. Slide fastener 5 Core material 51 Tapes 52 End 5A joint
Claims
1. A flat rug made of washable fabric, Having a core material that maintains the external shape of the main body of the rug and is detachable from the main body of the rug, The aforementioned mat body is a bag-like shape with an opening formed therein. The core material is made of a springy, ring-shaped steel material that can be bent so that its minimum width is smaller than the maximum width of the opening, and is able to be inserted into and removed from the opening in the bent state.
2. The aforementioned mat body has a front surface and a back surface, The rug according to claim 1, characterized in that the front surface and the back surface are made of different materials.
3. The mat according to claim 1 or 2, characterized in that the mat body has an external shape that is circular, elliptical, or rectangular with rounded corners.
Citation Information
Patent Citations
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Cushion for seating, and method for bending the same
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Holding structure of chair cover member and chair equipped with the same
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seat rug
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