JP3240355U - cleaning sponge - Google Patents

Abstract

A cleaning sponge (100) having elasticity and stiffness that prevents the sponge from being easily bent during cleaning work. A cleaning sponge (100) is made of a thin flat laminated composite (10). The laminate composite 10 is formed by joining a surface layer 20 made of soft sponge and a reinforcing layer 30 having high elasticity and high stiffness. A sponge sheet 31 in which the sponge forming the surface layer 20 is made of an open-celled porous resin material, and the reinforcing layer 30 is made of a self-supporting resin porous material bonded to the back surface of the surface layer 20, and this sponge sheet 31. and a fabric 36 joined to the back of the . A slit 40 having a depth penetrating the surface layer 20 and the sponge sheet 31 is formed across the longitudinal central portion of the laminated composite 10 . A strap 50 may be attached to the laminated composite 10 . [Selection drawing] Fig. 1

Description

TECHNICAL FIELD The present invention relates to a cleaning sponge used when a user manually presses a cleaning sponge against a surface to be cleaned, such as cleaning around a kitchen, around a bath, cleaning furniture, cleaning equipment, and washing a car.

Cleaning sponges are required to have the properties of being able to hold a sufficient amount of cleaning liquid and the properties of being able to smoothly supply the held cleaning liquid to a surface to be cleaned during cleaning work. In addition, it is also required that the cleaning sponge has elasticity and stiffness so that it does not easily bend when the cleaning work is performed while pressing the cleaning sponge against the surface to be washed such as the vehicle body. As a cleaning sponge that can meet these demands, a thick sponge that is relatively thick and flexible has been conventionally used.

A car wash sponge employing a thick sponge has been proposed in Prior Example 1 (see Patent Document 1). According to this car wash sponge, a handle is attached to the sponge, and the user can hold the handle by hand and press the water-containing sponge against the vehicle body to wash the car. However, according to this method, it is considered that the workability for carefully washing a narrow place is inferior to the case where the user performs the car washing work while pressing the sponge directly against the car body by hand.

Prior Art 2 (see Patent Document 2) proposes a car wash sponge brush in which an arch-shaped hand grip is attached to the surface of a thick sponge. According to this, it is considered that workability when carefully washing a narrow place is comparatively improved by providing the same feeling as when washing a car while pressing the sponge directly against the vehicle body by hand. However, the use of a thick sponge inevitably makes it difficult to use in a narrow space, and the weight of the sponge containing water becomes heavy, which cannot sufficiently meet the demand for reducing work labor.

Prior art 3 (see Patent Document 3) proposes a car wash sponge in which many intersecting shallow cuts are formed over the entire upper and lower surfaces of a flexible rectangular parallelepiped sponge. . According to this car wash sponge, since the palm of the hand that presses down on the sponge sinks into the sponge, it is thought that the situation in which the finger or the like of the hand hits a protrusion during cleaning work and is injured is less likely to occur. However, when it is desired to increase the thickness of the car wash sponge by folding it in two, it is difficult to fold the sponge in two because the depth of the cut is shallow. Conceivable.

Japanese Patent No. 3182979 Japanese Patent Application Laid-Open No. 2002-160610 (Fig. 1, etc.) JP 2001-128915 A

The present invention has been made in view of the above situation, and is a cleaning sponge that the user manually presses against the surface to be cleaned to perform cleaning work. The sponge can be washed easily and carefully with little effort, and has elasticity and stiffness that prevent the sponge from easily bending when rubbing surfaces to be washed such as dishes, sinks, bathtubs, and car bodies. The object is to provide a cleaning sponge. In addition, the present invention provides a cleaning sponge that can be folded in two to make it thicker and can meet the demand for work, and furthermore, a cleaning sponge that can prevent the sponge from falling during work. The purpose is to provide a cleaning sponge that can

The cleaning sponge according to the present invention is a cleaning sponge that a user manually presses against a surface to be cleaned to perform cleaning work. It consists of a thin, flat-shaped laminate composite in which a reinforcing layer with high elasticity and high stiffness is overlapped and joined.

When the cleaning sponge is configured in this manner, bending and wrinkling of the surface layer made of the soft sponge during cleaning work can be avoided by the reinforcing layer, which is more elastic and stiffer than the surface layer. Since the surface of the surface layer is formed as an uneven surface, the uneven surface of the surface layer is useful for effectively removing oil and dirt from the surface to be cleaned. In addition, since the cleaning sponge is a thin, flat laminated composite body in which the surface layer and the reinforcing layer are overlapped and joined, the feeling of pressing the cleaning sponge against the surface to be cleaned is directly felt. It is easy to carry out careful and reliable cleaning work. In addition, since the cleaning sponge is a thin, flat laminated composite, not only does it require less water for rinsing after cleaning, but it is also easier to transport and store as a product.

In the present invention, a sponge sheet in which the sponge forming the surface layer is made of an open-celled porous resin material, and the reinforcing layer is made of a self-supporting resin porous material bonded to the back surface of the surface layer, and the sponge sheet. It is desirable to have the fabric bonded to the back side. The open cell refers to a cell structure in which a part of the cell membrane has disappeared and the cells are communicating. It is an open cell of only the skeleton that consists of. The membraneless treatment includes a method of removing the cell membrane with a solvent, a method of removing the cell membrane by explosion, and the like. When the cleaning sponge has the above structure, water and cleaning liquid are sucked into the surface layer by forming the surface layer of the sponge made of a resin porous body with open cells. The sucked water or cleaning liquid is smoothly supplied to the surface to be cleaned. Therefore, even if a thin sponge is used for the surface layer, efficient cleaning work can be performed. On the other hand, the sponge sheet used for the reinforcing layer is made of a self-supporting resin porous body. The porous resin body having self-supporting properties includes a porous resin body in which open cells and closed cells in which the cell membrane is not removed and the cells are not connected to each other are mixed, and a resin porous body composed only of closed cells. Body, which has a strong repulsive force and is easy to return to its original shape. In addition, together with the fabric used for the reinforcing layer, the amount of water and cleaning liquid absorbed is suppressed compared to the surface layer, so the weight of the car wash sponge that has absorbed water and cleaning liquid is suppressed from becoming unnecessarily heavy. Also, the shape retention of the cleaning sponge is improved. This reduces the labor required for the cleaning operation. Furthermore, the fabric of the reinforcing layer helps prevent breakage of the sponge of the surface layer and the sponge sheet of the reinforcing layer.

In the present invention, the thin flat laminated composite body has a substantially rectangular plan view shape, and a surface layer made of an open-celled porous resin material and a sponge sheet made of a self-supporting porous resin material are provided. It is possible to employ a configuration in which a slit having a penetrating depth is formed across the longitudinal central portion of the laminated composite. According to this, it is possible to fold the laminated composite body in two at the slit forming portion to form a two-ply stack. As a result, it becomes possible to perform cleaning work with a thicker cleaning sponge.

In the present invention, the slit may be formed in a chain line shape. According to this, the surface layer and the sponge sheet are not divided into halves by the slit. Therefore, the surface layer does not peel off from the sponge sheet, and the sponge sheet does not peel off from the cloth.

In accordance with the present invention, it is preferred that the laminated composite has a strap attached to it that can be worn on the wrist of the user. According to this configuration, the user can wear the strap around his/her wrist to perform the cleaning work, thereby preventing the cleaning sponge from accidentally dropping during the work. Also, since the strap is connected to a laminate composite that includes tear-resistant fabric, it is less likely that the strap will tear off the cleaning sponge.

As described above, according to the cleaning sponge according to the present invention, the surface to be cleaned can be easily and carefully cleaned with a small amount of labor regardless of the size of the place using a sufficient amount of cleaning liquid. Since the sponge does not easily bend when rubbing, etc., the cleaning work can be done carefully and efficiently with less labor. In addition, it is possible to increase the thickness of the cleaning sponge by folding it in two and to prevent the sponge from falling during the operation.

1 is a schematic perspective view of a cleaning sponge according to an embodiment of the present invention; FIG. FIG. 4 is a partially broken side view of the cleaning sponge 100 folded in two.

FIG. 1 is a schematic perspective view of a cleaning sponge 100 according to an embodiment of the present invention, and FIG. 2 is a partially broken side view of the cleaning sponge 100 folded in two.

As shown in FIG. 1, this cleaning sponge 100 comprises a laminate composite 10 . The laminated composite 10 is formed by overlapping and bonding a surface layer 20 made of a soft sponge and a reinforcing layer 30 .

In the laminated composite body 10, the surface of the surface layer 20 is formed as an uneven surface having a large number of chevron-shaped projections 21 arranged regularly, such as a lattice arrangement or a staggered arrangement, over the entire surface. The flexible sponge forming the surface layer 20 is made of a resin porous body with open cells made of polyurethane, polyester, or the like, and the surface layer 20 itself is extremely flexible and does not have self-supporting properties.

The reinforcing layer 30 is more elastic than the surface layer 20 and is made of a stiff material. Specifically, the reinforcing layer 30 is composed of a sponge sheet 31 made of a self-supporting resin porous body bonded to the back surface of the surface layer 20 and a fabric 36 bonded to the back surface of the sponge sheet 31 . The sponge sheet 31 is made of polyurethane, polyester, or the like, and is hard enough to stand on its own and has a strong stiffness as compared with the surface layer 20 made of a resin porous body with open cells. Also, the fabric 36 provides tensile strength.

In this embodiment, the thin flat laminated composite 10 has a length of about 24 cm in the longitudinal direction L and a length of about 15 cm in the width direction W shown in FIG. The thickness (the length from the top of the chevron projection 21 to the back surface of the fabric 36) is set to approximately 20 mm. Among them, the thickness T of the surface layer 20 (the length from the top of the chevron projection 21 to the bottom surface of the surface layer) is approximately 15 mm, and the thickness t1 of the sponge sheet 31 forming the reinforcing layer 30 is approximately 3 mm. The thickness t2 of the fabric 36 is approximately 2 mm. For this reason, the above-mentioned "thin flat shape" means a sheet shape with a thickness of about 20 mm, and a thickness of about 15 to 30 mm does not preclude the term "thin".

When performing cleaning work using the cleaning sponge 100 described here, for example, the entire thin flat laminated composite body 10 is soaked in water or a cleaning liquid to get it wet. As a result of this work, the sponge of the surface layer 20 is made of a resin porous body with open cells, so that the water or cleaning liquid is sucked into the surface layer 20 and a sufficient amount of water or cleaning liquid is included in the laminated composite 10. A certain amount of water or washing liquid is also absorbed into the sponge sheet 31 and the fabric 36 forming the reinforcing layer 30 . After that, while the laminated composite 10 is still wet, the user performs the cleaning operation by pressing the laminated composite 10 against the surface to be cleaned such as a vehicle body and sliding or rubbing it.

In this cleaning operation, bending and wrinkling of the surface layer 20 made of a soft sponge are avoided by the reinforcing layer 30, which is more elastic and stiffer than the surface layer 20. In addition, the surface of the surface layer 20 is formed into an uneven surface. As a result, the uneven surface of the surface layer 20 helps effectively remove oil and dirt from the surface to be cleaned. In addition, the feeling of pressing the laminated composite 10 against the surface to be cleaned is directly transmitted to the hand, and the cleaning is performed carefully and reliably regardless of the size of the place, whether it is a narrow place or another large place. Easy to clean. In addition, since the thickness T of the surface layer 20 is as thin as approximately 15 mm, even if the surface layer 20 contains water or cleaning liquid, the laminated composite 10 does not unnecessarily become heavy. Therefore, the labor required for cleaning work is also reduced. Furthermore, less water is required for rinsing after the cleaning operation.

In this embodiment, as shown in FIG. 1, a slit 40 having a depth penetrating a surface layer 20 made of an open-cell porous resin material and a sponge sheet 31 made of a self-supporting resin porous material is formed by a laminated composite. It is formed across the longitudinal center of body 10 . Preferably, slit 40 does not reach fabric 36 . When the laminated composite body 10 has the slit 40, the laminated composite body 10 can be easily folded in two at the slit 40 formation site to form a two-ply stack as shown in FIG. For this reason, it is also possible to stack two cleaning sponges 100 to increase the thickness of the cleaning sponge 100 and perform the cleaning work. The slit 40 may be formed in a single continuous straight line, but in the illustrated example, the slit 40 is formed in a chain line. If the slits 40 are formed in a chain line shape, the surface layer 20 and the sponge sheet 31 will not be divided into halves by the slits 40, so that the surface layer 20 may be peeled off from the sponge sheet 31 or the sponge sheet 31 may be damaged by the fabric 36. There is an advantage that it does not come off from the surface. In addition, by preventing the slit 40 from reaching the fabric 36, even if the cleaning sponge 100 is pulled, it will not be torn along the border of the slit 40.例文帳に追加In addition, in the example of the drawing, the laminated composite body 10 is removed in a recessed manner on both sides of the slit formation portion. Reference numeral 41 indicates a missing portion. By doing so, it becomes easier to fold the laminated composite body 10 in two as shown in FIG.

In this embodiment, a through hole 11 is formed in one corner of the laminated composite 10, and a strap 50 connected to the laminated composite 10 using this through hole 11 is provided. The illustrated strap 50 has a loop portion 51 which can be fitted around the user's wrist. In this way, the user can wear the strap 50 around his/her wrist and carry out the cleaning work, thereby preventing the cleaning sponge 100 from being accidentally dropped during the work, especially for car washing. It is possible to prevent soil or sand from adhering to the dropped cleaning sponge 100 by accidentally dropping it on the ground during work. In addition, even if the cleaning sponge 100 is accidentally removed from the hand during cleaning work of the kitchen, bath, furniture, and equipment, the cleaning sponge 100 is connected to the wrist, so that the cleaning sponge 100 can be quickly picked up and returned to work. Advantageously, in this embodiment, the strap 50 is connected to the laminate composite 10 including the tear-resistant fabric 36 so that the strap 50 is less likely to come off the cleaning sponge 100 .

REFERENCE SIGNS LIST 10 laminated composite 20 surface layer 30 reinforcing layer 31 sponge sheet 36 fabric 40 slit 50 strap 100 cleaning sponge

Claims (5)

A cleaning sponge that a user manually presses against a surface to be cleaned to perform cleaning work,
It is characterized by being a thin flat laminated composite in which a surface layer made of a soft sponge having an uneven surface and a reinforcing layer having more elasticity and stiffness than the surface layer are overlapped and joined. cleaning sponge. The sponge forming the surface layer is made of an open-celled porous resin material, and the reinforcing layer is a sponge sheet made of a self-supporting resin porous material bonded to the back surface of the surface layer and bonded to the back surface of the sponge sheet. 2. The cleaning sponge of claim 1, wherein the cleaning sponge is made of woven fabric. The thin flat laminated composite has a substantially rectangular shape in plan view, and the depth of penetration between the surface layer made of the open-cell porous resin material and the sponge sheet made of the self-supporting resin porous material. 3. A cleaning sponge according to claim 2, wherein a slit having a is formed across the longitudinal central portion of said laminate composite. 4. A cleaning sponge according to claim 3, wherein the slits are formed in chain lines. 5. A cleaning sponge according to any one of claims 2 to 4, wherein a strap that can be worn on a user's wrist is connected to the laminated composite.

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