Antifouling cover

Abstract

To provide an antifouling cover capable of preventing a cover body from shifting on a body support surface, the antifouling cover laid on the body support surface on which a user lies or sits to prevent the body support surface from being stained.SOLUTION: An antifouling cover 100 includes a cover body 101 for covering an entire surface of a support surface of an air mattress, and fixtures 120. The cover body 101 is configured by forming a resin material in a substantially rectangular sheet shape in plan view, and forming a coating layer having a water-repellent resin material applied on the back surface. The fixture 120 is comprised of a first fixture 121, a second fixture 122, a third fixture, and a fourth fixture provided in the vicinity of each of the four corners of the cover body 101. The third fixture and the fourth fixture include first elongate bodies 124 and 144, second elongate bodies 127 and 147, and connectors 130 and 150 that detachably connect the first elongate bodies 124 and 144 and the second elongate bodies 127 and 147.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a stain-resistant cover that is placed on a body support surface on which a user lies or sits to prevent the body support surface from becoming soiled. [Background technology]

[0002] Conventionally, there have been bed pads that are placed on a mattress, futon, or seating sheet (hereinafter sometimes referred to as "mattress, etc.") to prevent dirt from adhering to the mattress, etc., and have a cover body that can be easily attached and detached from the mattress, etc. For example, Patent Document 1 listed below discloses a bed pad that can be easily attached and detached from a mattress or futon by means of two strips provided at the four corners of the bed pad and a locking means that connects these two strips to each other. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3057861

[0004] However, in the bed pad described in Patent Document 1, the length of the two strips connected to each other by the locking means is longer than the length of a straight line connecting the connection points between the bed pad and each strip, so there is a problem that when used with a thin bed mattress, the strips do not adhere tightly to each other and become bent, making it easy for the bed pad to slip off the bed mattress.

[0005] The present invention has been made to address the above-mentioned problems, and its purpose is to provide a stain-resistant cover that can prevent the cover body, which is placed on a body support surface on which a user lies or sits to prevent dirt from adhering to the body support surface, from shifting on the body support surface. Summary of the Invention

[0006] In order to achieve the above-mentioned object, the feature of the present invention is a stain-resistant cover that is placed on a body support surface on which a user lies or sits to prevent dirt from adhering to the body support surface, and comprises a cover main body that is placed on the body support surface, and a string- or band-like cover attachment body that is installed on the back surface opposite the body support surface to attach the cover main body to the body support surface, the cover attachment body comprising a first elongated body that extends in a string- or band-like manner from the edge of the cover main body and forms part of the cover attachment body, a second elongated body that extends in a string- or band-like manner from the edge of the cover main body and forms another part of the cover attachment body, and a connecting device that detachably connects the first elongated body and the second elongated body to each other, and the length of the first elongated body and the second elongated body connected to each other by the connecting device is formed to be the same length as the linear length between the first starting point at the edge of the cover main body from which the first elongated body extends and the second starting point at the edge of the cover main body from which the second elongated body extends.

[0007] According to this, the length of the first elongated body and the second elongated body connected to each other by the connector is formed to be the same as the linear length between the first starting point and the second starting point, so that the portion of the cover body where the cover attachment body is provided can be closely attached to the body support surface, thereby preventing the cover body from shifting. Note that the edge of the cover body includes the end of the cover body and the surrounding portion adjacent to this end.

[0008] To achieve the above object, the present invention is characterized by a stain-resistant cover that is placed on a body support surface on which a user lies or sits to prevent the adhesion of stains to the body support surface, and that includes a cover main body that is rectangular in plan view and that is placed on the body support surface, and a cover attachment body that is arranged on the back surface of the body support surface on the opposite side to attach the cover main body to the body support surface, and the cover attachment body has a first long length that extends in a string-like or band-like shape from a first starting point on one of two adjacent sides sandwiching a corner of the cover main body. The cover body has a first elongated body, a second elongated body extending in a string-like or band-like manner from a second starting point on the other of two adjacent sides sandwiching a corner of the cover body, and a connecting device that detachably connects the first elongated body and the second elongated body to each other, and the first angle, which is the angle that an imaginary line connecting the first starting point and the second starting point makes with respect to one side and is formed on the corner side of the cover body, and the second angle, which is the angle that the imaginary line makes with respect to the other side and is formed on the corner side of the cover body, are formed to be different in magnitude.

[0009] According to this, since the first angle and the second angle of the stain-resistant cover are formed to be different sizes, the magnitude of the tension acting on the one side portion and the other side portion of the cover body can be made different, and the adhesion force of the side portion to which a relatively large tension acts to the body support surface can be increased, thereby suppressing positional shifting.

[0010] In this case, the stain-resistant cover may have a cover body formed in a rectangular shape in a plan view, the one side portion being a side portion extending in the longitudinal direction of the cover body, and the first angle being smaller than the second angle. In this way, since the stain-resistant cover is formed with the first angle being smaller than the second angle, a relatively large tension acts on the one side portion forming the first angle, increasing the adhesion of the one side portion extending in the longitudinal direction to the body support surface and suppressing displacement.

[0011] Another feature of the present invention is that, in the anti-fouling cover, the connecting device is composed of a pair of first connecting bodies and second connecting bodies that are detachably connected to each other when the first elongated body and the second elongated body are overlapped on each other, and the first connecting bodies are provided in multiples on the first elongated body with gaps between them, and the second connecting bodies are provided in multiples on the second elongated body with gaps shorter or longer than the gaps between the multiple first connecting bodies provided on the first elongated body.

[0012] According to this, the stain-resistant cover is formed so that the distance between the first connecting bodies in the first elongated body is shorter or longer than the distance between the second connecting bodies in the second elongated body. That is, the stain-resistant cover is formed to a length that allows the portions between the first connecting bodies or the portions between the second connecting bodies to sag when the first elongated body and the second elongated body are connected to each other with multiple connectors. Therefore, the stain-resistant cover can prevent the portions between the first connecting bodies or the portions between the second connecting bodies from being pulled and damaged when the cover main body is attached.

[0013] Another feature of the present invention is that in the anti-fouling cover, one of the first and second elongated bodies is located on the opposite side of the cover body from the elongated body located on the cover body side when the cover body is attached to a body support surface, and the spacing between the connecting bodies in one elongated body is formed longer than the spacing between the connecting bodies in the other elongated body located on the cover body side.

[0014] According to this, when the cover body is attached, the distance between the connecting bodies in one elongated body located opposite the cover body side is longer than the distance between the connecting bodies in the other elongated body located on the cover body side. Therefore, the stain-resistant cover can prevent damage caused by pulling on the portions between the connecting bodies in the one elongated body, which is subjected to a force greater than the tension acting on the other elongated body.

[0015] Another feature of the present invention is that, in the anti-fouling cover, the thickness of the second elongated body side end, which is the end opposite the end on the first starting point side of both end portions, is formed to be thicker than the thickness of the part of the first elongated body other than the second elongated body side end, and the thickness of the first elongated body side end, which is the end opposite the end on the second starting point side of both end portions, is formed to be thicker than the thickness of the part of the second elongated body other than the first elongated body side end.

[0016] According to this, the anti-fouling cover is formed so that the thickness of the second elongated body side end of the first elongated body is thicker than the thickness of the remaining part of the first elongated body, and the thickness of the first elongated body side end of the second elongated body is thicker than the thickness of the remaining part of the second elongated body, making it easy to grasp the first elongated body and the second elongated body, and to attach and detach the connecting device.

[0017] In this case, the stain-resistant cover may be formed thicker than the portions of the first and second elongated bodies other than the folded portions by folding over the second elongated body side end portions and the first elongated body side end portions of the first and second elongated bodies, respectively. According to this, the stain-resistant cover is formed thicker than the remaining portions by folding over the second elongated body side end portions and the first elongated body side end portions, respectively, and therefore the thickness of each of the second elongated body side end portions and the first elongated body side end portions can be easily increased.

[0018] Another feature of the present invention is that, in the anti-fouling cover, the cover mounting body is provided at or around at least one of the four corners of the cover main body, which is formed in a rectangular shape when viewed in a plane.

[0019] According to this, the anti-fouling cover is provided at or around at least one of the four corners of the cover body, which has a cover mounting body formed into a square shape in a plan view, so that one corner can be fitted more closely to the body support surface than the other corners of the cover body.

[0020] In this case, the stain-resistant cover may have cover attachment bodies provided at two adjacent corners of the cover body, so that the edge of the cover body sandwiched between the two corners can be fitted more closely to the body support surface than the other edge of the cover body, since the cover attachment bodies are provided at two adjacent corners of the cover body. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a rear view schematically illustrating an outline of the overall configuration of an antifouling cover according to one embodiment of the present invention. [Figure 2] 2 is a perspective view schematically illustrating the outline of the external configuration of an air mattress to which the stain-resistant cover shown in FIG. 1 is attached. FIG. [Figure 3] FIG. 3 is a plan view schematically showing the outline of the external configuration of the air mattress shown in FIG. 2. [Figure 4] 2 is an enlarged plan view schematically showing the outline of the external configuration of the third mounting fixture shown in FIG. 1 in a separated state. FIG. [Figure 5] 2A and 2B are side views schematically showing the cover attachment body shown in FIG. 1 in a state before and after connection. [Figure 6] 2 is an enlarged plan view schematically illustrating the outline of the external configuration of the fourth mounting fixture shown in FIG. 1 in a connected state. FIG. [Figure 7] 1. FIG. 4 is a partial perspective view schematically illustrating the outline of the external configuration of a third corner of the mattress and a third corner of the cover body when the cover body shown in FIG. 1 is attached to a body support surface. DETAILED DESCRIPTION OF THE INVENTION

[0022] An embodiment of a stain-resistant cover according to the present invention will now be described with reference to the drawings. FIG. 1 is a rear view showing a schematic overview of the overall configuration of a stain-resistant cover 100 according to one embodiment of the present invention. Note that the figures referred to in this specification are schematic, with some components exaggerated to facilitate understanding of the present invention. Therefore, the dimensions and proportions of the components may differ. This stain-resistant cover 100 is intended, for example, to be placed on the body support surface of an air mattress 10 on which a user lies or sits to prevent the air mattress 10 from becoming soiled.

[0023] Here, the air mattress 10 is bedding that uses air pressure to support the body of a user in a supine position, and as shown in Figure 2, it is mainly composed of a mattress body 11 on which the user rests in a supine position and air piping 22 for drawing air in and out of the mattress body 11.

[0024] The mattress body 11 can change the hardness (elasticity) or angle of the body support surface 12 (hereinafter simply referred to as the "support surface 12"), which is the upper surface of the mattress body 11 and on which the body in a supine position is placed, by changing the air pressure inside the mattress body 11. The mattress body 11 is formed into a thick, flat plate with a roughly rectangular shape in a plan view that corresponds to the body. In this embodiment, the mattress body 11 is formed into a rectangular parallelepiped shape with length x width x thickness of 1910 x 910 x 100 (mm).

[0025] 3, the four sides of the mattress body 11 are designated as a first mattress side 14, a second mattress side 15, a third mattress side 16, and a fourth mattress side 17. In this case, the first mattress side 14 and the fourth mattress side 17 are short sides extending linearly in the width direction of the mattress body 11, and the second mattress side 15 and the third mattress side 16 are long sides extending linearly in the longitudinal direction of the mattress body 11 (i.e., in the height direction of the user in a lying position). The first mattress side 14 is the short side on the head side where the head of the user in a lying position is positioned, and the fourth mattress side 17 is the short side on the foot side where the feet of the user in a lying position are positioned.

[0026] The four corners of the mattress body 11 are designated as a first mattress corner 18, a second mattress corner 19, a third mattress corner 20, and a fourth mattress corner 21. In this case, the first mattress corner 18 is formed between the first mattress side 14 and the second mattress side 15, extending in a convex arc shape in a planar view, the second mattress corner 19 is formed between the first mattress side 14 and the third mattress side 16, extending in a convex arc shape in a planar view, the third mattress corner 20 is formed between the second mattress side 15 and the fourth mattress side 17, extending in a convex arc shape in a planar view, and the fourth mattress corner 21 is formed between the third mattress side 16 and the fourth mattress side 17, extending in a convex arc shape in a planar view.

[0027] The air piping 22 is a component for circulating air between the inside of the mattress body 11 and an air pump device (not shown), and is made up of multiple flexible, long resin pipes. The air piping 22 extends outward from the side surface of the mattress body 11 at the fourth mattress corner 21 and is connected to the air pump device.

[0028] (Configuration of antifouling cover 100) As shown in Figure 1, this stain-resistant cover 100 is mainly composed of a cover body 101 and an attachment 120. The cover body 101 is a waterproof sheet-like component that is placed on the support surface 12 of the mattress body 11 to cover the entire support surface 12 and prevent stains from seeping into the support surface 12.

[0029] The cover body 101 is formed by forming a cotton material, polyester resin material, or a combination of these materials into a rectangular sheet shape in a plan view. In this case, the cover body 101 can be formed into a stretchable or non-stretchable sheet shape. In this embodiment, the cover body 101 is formed by forming a polyester resin material into a stretchable, approximately rectangular shape in a plan view that is slightly larger than the support surface 12 of the mattress body 11. Specifically, the cover body 101 is formed to a size of approximately 885 x 1890 (mm). The cover body 101 has a coating layer formed on the back surface 103, which is the surface that is placed directly on the support surface 12 of the mattress body 11, opposite the front surface 102, which is the surface that comes into direct contact with the user's body.

[0030] The coating layer is a portion for preventing excrement such as urine that has seeped in from the front surface 102 side, vomit from the user, food spills, and other stains from seeping out from the back surface 103, and is formed on the entire back surface 103. This coating layer is formed by applying a thin film of a water-repellent synthetic resin material to the surface of the back surface 103. In this embodiment, the coating layer is formed by applying a polyurethane resin material over the entire back surface of the front surface 102.

[0031] Here, the four sides of this cover body 101 are referred to as a first side portion 104, a second side portion 105, a third side portion 106, and a fourth side portion 107. In this case, the first side portion 104 and the fourth side portion 107 are short sides that extend linearly in the width direction of the mattress body 11, corresponding to the mattress first side portion 14 and the mattress fourth side portion 17, respectively, and the second side portion 105 and the third side portion 106 are long sides that extend linearly in the longitudinal direction of the air mattress 10, corresponding to the mattress second side portion 15 and the mattress third side portion 16, respectively.

[0032] The four corners of the cover body 101 are designated as a first corner 108, a second corner 109, a third corner 110, and a fourth corner 111. In this case, the first corner 108 is formed between the first side 104 and the second side 105 and extends in a convex arc shape in a plan view, the second corner 109 is formed between the first side 104 and the third side 106 and extends in a convex arc shape in a plan view, the third corner 110 is formed between the second side 105 and the fourth side 107 and extends in a convex arc shape in a plan view, and the fourth corner 111 is formed between the third side 106 and the fourth side 107 and extends in a convex arc shape in a plan view.

[0033] The mounting fixture 120 is a part for attaching the cover body 101 to the support surface 12 of the mattress body 11, and is composed of a first mounting fixture 121, a second mounting fixture 122, a third mounting fixture 123 and a fourth mounting fixture 143, which are provided at the four corners of the cover body 101, respectively.

[0034] The first attachment tool 121 and the second attachment tool 122 are components that are installed near the first mattress corner 18 or the second mattress corner 19 on the back surface 13 opposite the support surface 12 of the mattress body 11, respectively, to attach the cover body 101 to the air mattress 10. The first attachment tool 121 and the second attachment tool 122 are formed in the shape of a long string or band. In this embodiment, the first attachment tool 121 and the second attachment tool 122 are made of stretchy band-like bodies made of polyester resin and polyurethane resin.

[0035] In this case, one end of the first mounting fixture 121 is connected by sewing to a portion of the first side 104 of the cover body 101 near the first corner 108, and the other end is connected by sewing to a portion of the second side 105 near the first corner 108. As a result, the first mounting fixture 121 is installed between the first side 104 and the second side 105 in the vicinity of the first corner 108.

[0036] Moreover, one end of the second mounting fixture 122 is connected by sewing to a portion of the first side 104 of the cover body 101 near the second corner 109, and the other end is connected by sewing to a portion of the third side 106 near the second corner 109. As a result, the second mounting fixture 122 is installed between the first side 104 and the third side 106 in the vicinity of the second corner 109.

[0037] Similar to the first attachment tool 121 and the second attachment tool 122, the third attachment tool 123 is a component that is installed on the rear surface 13 of the mattress body 11 in the vicinity of the third mattress corner 20 to attach the cover body 101 to the air mattress 10. As shown in FIG. 4 , the third attachment tool 123 mainly includes a first elongated body 124, a second elongated body 127, and a connecting tool 130.

[0038] The first elongated body 124 is a component that constitutes part of the third mounting fixture 123, and is formed in the shape of a long string or strip. In this embodiment, the first elongated body 124 is configured as a stretchable strip made of polyester resin and polyurethane resin. One of both end portions of this first elongated body 124, i.e., a first starting point side end portion 124a, is connected by sewing to a portion of the second side portion 105 near the third corner portion 110, and the other end portion, i.e., a second elongated body side end portion 124b, is a free end.

[0039] The second side 105 to which the first elongated body 124 is connected corresponds to one side according to the present invention. The portion of the second side 105 to which the first elongated body 124 is connected corresponds to the first starting point 125 according to the present invention. On the other hand, a gripping portion 126 is formed at the tip portion of the second elongated body side end portion 124b of the first elongated body 124.

[0040] The gripping portion 126 is a portion that is made easier to grip with a hand, and is formed thicker than the thickness of the remaining portion of the first elongated body 124. In this embodiment, the gripping portion 126 is formed thicker by folding the tip portion of the second elongated body side end portion 124b.

[0041] The second elongated body 127 is a member that constitutes another part of the third mounting fixture 123, and is formed in the shape of a long string or strip. In this embodiment, the second elongated body 127 is configured as a stretchable strip made of polyester resin and polyurethane resin. One of both end portions of the second elongated body 127, i.e., a second starting point side end portion 127a, is connected by sewing to a portion of the fourth side portion 107 near the third corner portion 110, and the other end portion, i.e., a first elongated body side end portion 127b, is a free end.

[0042] The fourth side 107 to which the second elongated body 127 is connected corresponds to the other side according to the present invention. The portion of the fourth side 107 to which the second elongated body 127 is connected corresponds to the second starting point 128 according to the present invention. On the other hand, a gripping portion 129 is formed at the tip portion of the first elongated body side end portion 127b of the second elongated body 127.

[0043] The gripping portion 129 is a portion that is made easier to grip with a hand, and is formed thicker than the thickness of the remaining portion of the second elongated body 127. In this embodiment, the gripping portion 129 is formed thicker by folding the tip portion of the first elongated body side end portion 127b.

[0044] Here, the portions where the first elongated body 124 and the second elongated body 127 are connected to the second side 105 and the fourth side 107, respectively, will be described. The angle that the imaginary line i connecting the first starting point 125 and the second starting point 128 forms with the second side 105, which is formed on the third corner 110 side, is defined as a first angle α1, and the angle that the imaginary line i forms with the fourth side 107, which is formed on the third corner 110 side, is defined as a second angle α2. In this case, the first elongated body 124 and the second elongated body 127 are connected at the first starting point side end 124a and the second starting point side end 127a, respectively, to the first starting point 125 and the second starting point 128, where the first angle α1 and the second angle α2 are different from each other. In this embodiment, the first elongated body 124 and the second elongated body 127 are connected at positions where the first angle α1 is smaller than the second angle α2. Specifically, the first angle α1 is approximately 45 degrees, and the second angle α2 is approximately 50 degrees.

[0045] The connector 130 is a component for detachably connecting the first elongated body 124 and the second elongated body 127. Specifically, the connector 130 is composed of a pair of first and second connecting bodies 130a and 130b that detachably connect the first and second elongated bodies 124 and 127 in a state where they are stacked on top of each other. In this embodiment, the connector 130 is composed of snap buttons that respectively include the first connecting body 130a formed in a concave shape and the second connecting body 130b formed in a convex shape that fits into the first connecting body 130a.

[0046] Two first connecting bodies 130a are provided side by side at an interval in the longitudinal direction of the first elongated body 124 on the second elongated body side end 124b side of the first elongated body 124. In this case, the first connecting bodies 130a are provided in an orientation such that the opening portions of the first connecting bodies 130a face the back surface 103 side.

[0047] Two second connecting bodies 130b are provided side by side at an interval in the longitudinal direction of the second elongated body 127 on the side of the first elongated body side end portion 127b of the second elongated body 127. The second connecting bodies 130b are provided in a direction that protrudes in the direction in which the back surface 103 of the cover body 101 faces.

[0048] The distance between the first connecting bodies 130a is longer than the distance between the second connecting bodies 130b. That is, the distance between the first connecting bodies 130a is set to a length that allows slack in the member between the first connecting bodies 130a in the first elongated body 124 and the second elongated body 127 that are connected to each other by the two connectors 130, as shown in FIG.

[0049] Furthermore, the first elongated body 124 and the second elongated body 127 are formed so that the length of the first elongated body 124 and the second elongated body 127 connected to each other by the two connectors 130 is the same as the length of the imaginary line i. In this case, the term "same length" does not only mean the same length in the strict sense, but also includes substantially the same length.

[0050] Similar to the third mounting fixture 123, the fourth mounting fixture 143 is a component that is installed on the underside 13 of the mattress body 11 in the vicinity of the fourth mattress corner 21 to mount the cover body 101 to the air mattress 10. As shown in FIG. 6, the fourth mounting fixture 143 is configured similarly to the third mounting fixture 123.

[0051] Specifically, the fourth attachment 143 is configured by disposing the first elongated body 124, the first starting point side end 124a, the second elongated body side end 124b, the first starting point 125, the gripping portion 126, the second elongated body 127, the second starting point side end 127a, the first elongated body side end 127b, the second starting point 128, the gripping portion 129, the imaginary line i, the first angle α1, the second angle α2, the connector 130, the first connecting body 130a, the second connecting body The third mounting fixture 123 and the fourth mounting fixture 143 each include a first elongated body 144, a first starting point-side end portion 144a, a second elongated body-side end portion 144b, a first starting point 145, a gripping portion 146, a second elongated body 147, a second starting point-side end portion 147a, a first elongated body-side end portion 147b, a second starting point 148, a gripping portion 149, an imaginary line I, a first angle β1, a second angle β2, a connector 150, a first connecting body 150a, and a second connecting body 150b, which correspond to the third mounting fixture 123 and the fourth mounting fixture 143, respectively. The third mounting fixture 123 and the fourth mounting fixture 143 configured in this manner correspond to the cover mounting bodies according to the present invention.

[0052] (Operation of the antifouling cover 100) Next, a description will be given of the operation of the thus configured stain-resistant cover 100. First, an operator prepares a stain-resistant cover 100 having a size corresponding to the size of the air mattress 10.

[0053] Next, the worker attaches the stain-resistant cover 100 to the air mattress 10. Specifically, the worker first lays the stain-resistant cover 100 on the air mattress 10. In this case, the worker places the cover body 101 on the support surface 12 so that each side of the cover body 101 corresponds to each side of the mattress body 11. Specifically, the worker places the cover body 101 on the support surface 12 of the mattress body 11 so that the first side 104 of the cover body 101 is located on the first mattress side 14, the second side 105 is located on the second mattress side 15, the third side 106 is located on the third mattress side 16, and the fourth side 107 is located on the fourth mattress side 17.

[0054] Next, the worker attaches the first attachment tool 121 and the second attachment tool 122 to the rear surfaces 13 of the first mattress corner portion 18 and the second mattress corner portion 19, respectively. Specifically, the worker pulls the first attachment tool 121 and the second attachment tool 122 in a direction away from the cover main body 101 (vertical or horizontal to the cover main body 101) to hook them onto the first mattress corner portion 18 and the second mattress corner portion 19, respectively. As a result, the first attachment tool 121 and the second attachment tool 122 are attached in a state in which they are suspended above the rear surfaces 13 of the first mattress corner portion 18 and the second mattress corner portion 19, respectively.

[0055] Next, as shown in FIG. 7 , the worker attaches the third attachment tool 123 to the back surface 13 of the third corner portion 20 of the mattress. First, the worker connects the first elongated body 124 and the second elongated body 127 to each other with the connecting tool 130. In this embodiment, the worker connects the first elongated body 124 and the second elongated body 127 to each other with two connecting tools 130. Specifically, the worker overlaps the first connecting body 130a provided on the first elongated body 124 and the second connecting body 130b provided on the second elongated body 127 with each other and presses them together to fit them together. In this case, the worker can change the positions at which the connecting bodies are fitted together depending on the thickness of the mattress main body 11.

[0056] Specifically, the worker can couple the first connecting body 130a on the first starting point side end 124a side of the first elongated body 124 and the second connecting body 130b on the second starting point side end 127a side of the second elongated body 127 with each other in a state where the length of the third attachment 123 is shortest. Also, the worker can couple the first connecting body 130a on the second elongated body side end 124b side of the first elongated body 124 and the second connecting body 130b on the first elongated body side end 127b side of the second elongated body 127 with each other in a state where the length of the third attachment 123 is longest.

[0057] It should be noted that the method of connecting the first elongated body 124 and the second elongated body 127 is not limited to the above method. For example, the worker may connect the first connecting body 130a on the first starting point side end 124a side of the first elongated body 124 and the second connecting body 130b on the first elongated body side end 127b side of the second elongated body 127.

[0058] Next, the worker hooks the connected third attachment tool 123 onto the rear surface 13 of the third corner portion 20 of the mattress in the same manner as the attachment work of the first attachment tool 121 and the second attachment tool 122.

[0059] Next, the worker attaches the fourth attachment tool 143 to the underside 13 of the fourth corner 21 of the mattress. First, the worker connects the first elongated body 144 and the second elongated body 147 to each other using two connecting tools 150. Specifically, the worker connects the first elongated body 144 and the second elongated body 147 below the air pipe 22 of the air mattress 10. In this case, as with the third attachment tool 123, the worker can change the position at which the connecting bodies are fitted together depending on the thickness of the mattress body 11.

[0060] Next, the worker hooks the connected fourth mounting fixture 143 onto the underside 13 of the fourth corner 21 of the mattress in the same manner as the installation work of the third mounting fixture 123. In this case, the worker can attach the stain-resistant cover 100 to the air mattress 10 without removing the air piping 22 of the air mattress 10 from the mattress body 11, because the first elongated body 144 and the second elongated body 147 are configured to be detachably connected by the connecting fixture 150.

[0061] In the installation work of the third attachment tool 123 and the fourth attachment tool 143, the first elongated bodies 124, 144 and the second elongated bodies 127, 147 were connected to each other and then hooked onto the back surface 13 of each corner of the mattress body 11 to install them. However, the worker can also install the first elongated bodies 124, 144 and the second elongated bodies 127, 147 below each corner of the mattress body 11 and then connect them to each other to install them over the back surface 13 of each corner.

[0062] By these operations, the entire support surface 12 of the mattress body 11 is covered with the cover body 101, and the work of attaching the stain-resistant cover 100 to the air mattress 10 is completed.

[0063] The air mattress 10 fitted with the stain-resistant cover 100 is then ready for use by a user. In this case, the stain-resistant cover 100 is formed such that the first angles α1, β1 at the first starting points 125, 145 are smaller than the second angles α2, β2 at the second starting points 128, 148. Therefore, a relatively large tension acts on the second side portion 105 and the third side portion 106 that form the first angles α1, β1, increasing the adhesion of the second side portion 105 and the third side portion 106 extending in the longitudinal direction to the support surface 12 and suppressing misalignment.

[0064] Furthermore, the antifouling cover 100 is formed to a length that allows slack in the members between the first connecting bodies 130a (150a) in the first elongated body 124 (144) located on the opposite side from the cover main body 101 when the cover main body 101 is attached. Therefore, the antifouling cover 100 can prevent the members between the first connecting bodies 130a (150a) from being pulled and damaged in the first elongated body 124 (144), which is subjected to a greater tension than the second elongated body 127 (147) when the cover main body 101 is attached.

[0065] On the other hand, when removing the stain-resistant cover 100 from the air mattress 10, the worker lifts each corner of the mattress body 11 in turn to remove the first mounting fixture 121, the second mounting fixture 122, the third mounting fixture 123 and the fourth mounting fixture 143, respectively.

[0066] Next, the worker releases the connection between the first elongated body 124 and the second elongated body 127 by releasing the engagement of the connector 130 in the third mounting fixture 123. In this case, the worker can easily separate the connector 150 by pinching the gripping portions 126, 129 of the first elongated body 124 or the second elongated body 127 and pulling the first elongated body 124 and the second elongated body 127 apart. Next, the worker releases the connection between the first elongated body 144 and the second elongated body 147 in the fourth mounting fixture 143 in the same manner as the operation of releasing the third mounting fixture 123.

[0067] This allows the worker to remove the stain-resistant cover 100 from the air mattress 10. Even in this case, the worker can easily remove the stain-resistant cover 100 from the air mattress 10 without disconnecting the air pipe 22 of the air mattress 10 from the mattress body 11, because the first elongated body 144 and the second elongated body 147 are configured to be detachably connected by the connector 150.

[0068] The stain-resistant cover 100 removed from the air mattress 10 may be discarded or reused. When reusing the stain-resistant cover 100, the worker may reuse the stain-resistant cover 100 removed from the air mattress 10 as is, or may wash it before reuse. When washing the stain-resistant cover 100, the worker can hang the stain-resistant cover 100 by passing a clothesline between the first mounting fixture 121, the second mounting fixture 122, the connected third mounting fixture 123, and the connected fourth mounting fixture 143 and the back surface 103 of the cover main body 101, and hanging the cover main body 101 from the clothesline pole.

[0069] As can be understood from the above description of operation, according to the above embodiment, the stain-resistant cover 100 is formed so that the length of the first elongated body 124 (144) and the second elongated body 127 (147), which are connected to each other by two connecting devices 130 (150), is the same as the length of the imaginary line i (I). Therefore, the stain-resistant cover 100 can prevent the cover body 101 from shifting position by bringing the portion of the cover body 101, where the third mounting device 123 and the fourth mounting device 143 are provided, into close contact with the support surface 12 of the mattress body 11.

[0070] Furthermore, the present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the object of the present invention.

[0071] For example, in the above embodiment, the stain-resistant cover 100 is attached to the air mattress 10. However, the object to which the stain-resistant cover 100 is attached is not necessarily limited to the air mattress 10. For example, the stain-resistant cover 100 can be widely used on various items that have a support surface 12 for a user to lie down or sit on, such as bedding other than the air mattress 10, such as a futon, a cushion, a chair, a wheelchair, or a vehicle seat.

[0072] Furthermore, in the above embodiment, the stain-resistant cover 100 is configured by connecting the cover attachment bodies to the portions near the third corner 110 and the fourth corner 111 of the cover body 101, respectively. This allows the third corner 110 and the fourth corner 111 of the cover body 101 to fit more closely to the support surface 12 than the other corners of the cover body 101. However, the stain-resistant cover 100 may be configured such that the cover attachment body is provided at at least one of the four corners of the cover body 101 or its surrounding area. Therefore, for example, the stain-resistant cover 100 may be configured such that the cover attachment body is provided only near the fourth corner 111, or may be provided near each of the four corners of the cover body 101.

[0073] Furthermore, in the above embodiment, the stain-resistant cover 100 is configured by connecting the third mounting fixture 123 and the fourth mounting fixture 143 to the edge of the cover main body 101 near each corner. However, the stain-resistant cover 100 may be configured by providing the first elongated bodies 124, 144 and the second elongated bodies 127, 147 of the third mounting fixture 123 and the fourth mounting fixture 143 on opposing sides of the cover main body 101, respectively. For example, the stain-resistant cover 100 may be configured by providing the first elongated bodies 124, 144 on the second side 105 of the cover main body 101 and providing the second elongated bodies 127, 147 on the third side 106 opposing the second side 105. In other words, the first elongated bodies 124, 144 and the second elongated bodies 127, 147 may be bridged across the width of the air mattress 10.

[0074] In the above embodiment, the stain-resistant cover 100 has the first elongated body 124 (144) and the second elongated body 127 (147) connected to each other by the two connectors 130 (150) formed to have the same length as the imaginary line i (I). This allows the stain-resistant cover 100 to closely contact the portion of the cover main body 101 where the cover mounting body is provided with the support surface 12 of the mattress main body 11, thereby preventing the cover main body 101 from shifting. However, when the first angle α1 (β1) and the second angle α2 (β2) are formed to be different from each other, the stain-resistant cover 100 can have the first elongated body 124 (144) and the second elongated body 127 (147) connected to each other by the two connectors 130 (150) formed to be shorter or longer than the imaginary line i (I).

[0075] Furthermore, in the above embodiment, the antifouling cover 100 is formed so that the first angle α1 (β1) is smaller than the second angle α2 (β2). As a result, when the cover body 101 is attached, the antifouling cover 100 can apply a relatively large tension to the second side portion 105 and the third side portion 106 that form the first angle α1 (β1), thereby increasing the adhesion of the second side portion 105 and the third side portion 106 extending in the longitudinal direction to the support surface 12 and suppressing misalignment.

[0076] However, the antifouling cover 100 may be formed so that the first angle α1 (β1) and the second angle α2 (β2) are different from each other. This allows the antifouling cover 100 to have different tensions acting on the one side portion forming the first angle α1 (β1) and the other side portion forming the second angle α2 (β2) when the cover body 101 is attached, thereby increasing the adhesion force of the side portion to which a relatively large tension acts, and suppressing misalignment.

[0077] Furthermore, in the above embodiment, the antifouling cover 100 is formed such that the first angle α1 (β1) is smaller than the second angle α2 (β2). This increases the adhesion of the second side portion 105 and the third side portion 106 extending in the longitudinal direction to the support surface 12, thereby preventing the cover body 101 from shifting out of position. However, when the lengths of the first elongated body 124 (144) and the second elongated body 127 (147) connected to each other by the two connectors 130 (150) are the same as the length of the imaginary line i (I), the antifouling cover 100 can form the first angle α1 (β1) and the second angle α2 (β2) to be the same magnitude.

[0078] In the above embodiment, the connectors 130, 150 of the stain-resistant cover 100 are configured as snap buttons. However, the connectors 130, 150 are not necessarily limited to snap buttons. For example, the connectors 130, 150 may be configured as a pair of fasteners such as buttons, hook-and-loop fasteners, or hooks, or may be configured as fasteners such as adhesive tape or a safety pin. When the connectors 130, 150 are configured as fasteners such as adhesive tape or a safety pin, the connectors 130, 150 may be provided on either the first elongated body 124 (144) or the second elongated body 127 (147).

[0079] Furthermore, in the above embodiment, the stain-resistant cover 100 is configured such that the connector 130 (150) connects the first elongated body 124 (144) and the second elongated body 127 (147) in a state where they are overlapped with each other. However, the stain-resistant cover 100 only needs to be configured such that the connector 130 (150) connects the first elongated body 124 (144) and the second elongated body 127 (147) in a detachable manner, and the state in which the first elongated body 124 (144) and the second elongated body 127 (147) are connected is not particularly limited.

[0080] In the above embodiment, the antifouling cover 100 is configured with two connectors 130, 150 for each of the third mounting fixture 123 and the fourth mounting fixture 143. However, the third mounting fixture 123 and the fourth mounting fixture 143 may be configured with only one connector 130, 150, or two or more connectors 130, 150.

[0081] Furthermore, in the above embodiment, the distance between the first connecting bodies 130a (150a) in the first elongated body 124 (144) in the stain-resistant cover 100 is longer than the distance between the second connecting bodies 130b (150b) in the second elongated body 127 (147). This makes it possible for the stain-resistant cover 100 to prevent damage to the members between the first connecting bodies 130a (150a) in the first elongated body 124 (144).

[0082] However, in the stain-resistant cover 100, the distance between the first connecting bodies 130a (150a) in the first elongated body 124 (144) can be made shorter than the distance between the second connecting bodies 130b (150b) in the second elongated body 127. This makes it possible for the stain-resistant cover 100 to prevent damage to the members between the second connecting bodies 130b (150b) in the second elongated body 127 (147). Furthermore, in the stain-resistant cover 100, the distance between the first connecting bodies 130a (150a) and the distance between the second connecting bodies 130b (150b) in the first elongated body 124 (144) may be made the same length.

[0083] In the above embodiment, the stain-resistant cover 100 is configured such that the thickness of the second elongated body side end 124b (144b) of the first elongated body 124 (144) is thicker than the thickness of the portion of the first elongated body 124 (144) other than the second elongated body side end 124b (144b), and the thickness of the first elongated body side end 127b (147b) of the second elongated body 127 (147) is thicker than the thickness of the portion of the second elongated body 127 (147) other than the first elongated body side end 127b (147b). This makes it easy to grip the first elongated body 124 (144) and the second elongated body 127 (147), facilitating the attachment and detachment of the connector 130 (150).

[0084] However, the anti-fouling cover 100 can also be formed so that the thickness of the second elongated body side end 124b (144b) of the first elongated body 124 (144) is the same as the thickness of the part of the first elongated body 124 (144) other than the second elongated body side end 124b (144b) or thinner than the thickness of the part of the first elongated body 124 (144) other than the second elongated body side end 124b (144b).

[0085] In the above embodiment, the shape of the stain-resistant cover 100 is rectangular, which is a typical shape for an air mattress 10. However, it goes without saying that the shape of the stain-resistant cover 100 is determined according to the outer shape of the bedding, cushion, chair, etc. to which the cover body 101 is to be attached. Therefore, for example, the stain-resistant cover 100 can be formed into a shape other than a rectangle, such as a circle. This can also be expected to have the same effect as the above embodiment.

[0086] Furthermore, in the above embodiment, when attaching the stain-resistant cover 100 to the air mattress 10, the cover body 101 was laid on the air mattress 10, and then the attachment tools 120 were hooked onto each corner of the mattress body 11 to attach the stain-resistant cover 100. However, the attachment method of the stain-resistant cover 100 is not limited to the above method. For example, a worker can attach the stain-resistant cover 100 to the air mattress 10 by placing the air mattress 10 on the stain-resistant cover 100 laid on the floor, and then hooking the attachment tools 120 onto each corner of the mattress body 11.

[0087] Specifically, the worker first lays the cover body 101 on the floor with the back surface 103 of the cover body 101 facing upward. Next, the worker places the air mattress 10 on the back surface 103 of the cover body 101 with the support surface 12 of the mattress body 11 facing the back surface 103 of the cover body 101. In this case, the worker places the air mattress 10 so that each side of the mattress body 11 corresponds to each side of the cover body 101, as in the above embodiment. Next, the worker pulls each of the attachment devices 120 in a direction away from the cover body 101 and hooks them onto each corner of the mattress body 11, as in the above embodiment. This allows the worker to attach the stain-resistant cover 100 to the air mattress 10.

[0088] Then, the worker can invert (i.e., turn over) the support surface 12 and the back surface 13 of the mattress body 11 with the stain-resistant cover 100 attached and place the air mattress 10 on the floor, thereby making the air mattress 10 with the stain-resistant cover 100 attached usable. [Explanation of symbols]

[0089] α1…first angle, α2…second angle, β1...first angle, β2...second angle, 10...Air mattress, 11...Mattress body, 12...Support surface, 13...Back surface, 14...first side portion of mattress, 15...second side portion of mattress, 16...third side portion of mattress, 17...fourth side portion of mattress, 18...first corner of mattress, 19...second corner of mattress, 20...third corner of mattress, 21...fourth corner of mattress, 22...Air piping, 100...Anti-fouling cover, 101...cover body, 102...surface, 103...back surface, 104...first side portion, 105...second side portion, 106...third side portion, 107...fourth side portion, 108...first corner portion, 109...second corner portion, 110...third corner portion, 111...fourth corner portion, 120...mounting fixture, 121...first mounting fixture, 122...second mounting fixture, 123...Third mounting fixture, 124...first elongated body, 124a...first starting point side end portion, 124b...second elongated body side end portion, 125...first starting point, 126...grip portion, 127...second elongated body, 127a...second starting point side end, 127b...first elongated body side end, 128...second starting point, 129...grip portion, 130...connecting tool, 130a...first connecting body, 130b...second connecting body, 143...Fourth mounting fixture, 144...first elongated body, 144a...first starting point side end, 144b...second elongated body side end, 145...first starting point, 146...grip portion, 147...second elongated body, 147a...second starting point side end portion, 147b...first elongated body side end portion, 148...second starting point, 149...grip portion, 150...connector, 150a...first connecting body, 150b...second connecting body.

Claims

1. A stain-resistant cover that is placed on a body support surface on which a user lies or sits to prevent dirt from adhering to the body support surface, a cover body to be placed on the body support surface; a string-like or band-like cover attachment body that is stretched over the back surface of the body support surface on the opposite side thereof in order to attach the cover body to the body support surface; The cover mounting body is a first elongated body extending in a string or band shape from an edge of the cover main body and constituting a part of the cover attachment body; a second elongated body extending in a string or band shape from an edge of the cover body to form another part of the cover attachment body; a connector that detachably connects the first elongated body and the second elongated body to each other, A stain-resistant cover characterized in that the length of the first elongated body and the second elongated body connected to each other by the connecting device is formed to be the same length as the linear length between the first starting point from which the first elongated body extends at the edge of the cover body and the second starting point from which the second elongated body extends at the edge of the cover body.

2. A stain-resistant cover that is placed on a body support surface on which a user lies or sits to prevent dirt from adhering to the body support surface, A cover body having a rectangular shape in a plan view and placed on the body support surface; a cover attachment body disposed on the rear surface opposite to the body support surface for attaching the cover body to the body support surface; The cover mounting body is a first elongated body extending in a string-like or band-like shape from a first starting point on one of two adjacent sides of the cover body with a corner therebetween; a second elongated body extending in a string-like or band-like shape from a second starting point on the other of two adjacent sides of the cover body with the corner therebetween; a connector that detachably connects the first elongated body and the second elongated body to each other, A stain-resistant cover characterized in that a first angle formed on the corner side of the cover body and an imaginary line connecting the first starting point and the second starting point are angled with respect to one side, and the second angle formed on the corner side of the cover body and an imaginary line connecting the first starting point and the second starting point are angled with respect to the other side, and the first angle is formed on the corner side of the cover body and is angled with respect to the other side.

3. The stain-resistant cover according to claim 1 or 2, The connector is The first elongated body and the second elongated body are overlapped with each other and comprise a pair of first connecting bodies and second connecting bodies that are detachably connected to each other, The first tethered body is a plurality of the first elongated members are provided on the first elongated member at intervals, The second tethered body is A stain-resistant cover characterized in that a plurality of first connecting bodies are provided on the second elongated body at intervals shorter or longer than the intervals between the plurality of first connecting bodies provided on the first elongated body.

4. The stain-resistant cover according to claim 3, One of the first elongated body and the second elongated body is When the cover body is attached to the body support surface, the cover body is positioned on the opposite side of the elongated body that is positioned on the cover body side, A stain-resistant cover characterized in that the distance between the connecting bodies in one of the elongated bodies is longer than the distance between the connecting bodies in the other elongated body located on the cover main body side.

5. The stain-resistant cover according to claim 1 or 2, The first elongated body is a thickness of a second elongated body side end portion, which is an end portion opposite to the end portion on the first starting point side, is formed to be thicker than a thickness of a portion of the first elongated body other than the second elongated body side end portion, The second elongated body is A stain-resistant cover characterized in that the thickness of the first elongated body side end, which is the end opposite the end on the second starting point side of both ends, is formed thicker than the thickness of the part of the second elongated body other than the first elongated body side end.

6. The stain-resistant cover according to claim 1 or 2, The cover mounting body is A stain-resistant cover characterized in that it is provided at or near at least one of the four corners of the cover body, which is formed in a rectangular shape in a plan view.

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