JP4822508B2 - Suction cup, suction sheet and suction tool using suction cup - Google Patents

Description

  The present invention relates to a suction cup, a suction cup sheet, and a suction tool using the suction cup, and in particular, a suction cup for attaching accessories and toiletries to a mounted surface, and a suction cup sheet and a suction cup formed by molding the suction cup. It relates to the suction tool.

  In general, as shown in FIGS. 9A and 9B, the suction cup is made of an elastically recoverable soft material made of synthetic resin or rubber, and has a lid shape that is flat and circular and expands downward. The skirt body 3 is provided. The inner suction surface (bottom surface) of the skirt body 3 is formed to be curved like a part of a spherical surface. At the center of the outer upper surface of the skirt body 3, a mounting projection 4 is formed to project upward. A through hole 5 is formed in the mounting protrusion 4 so that an accessory or the like (not shown) can be mounted. In the suction cup 2, when the inner suction surface of the skirt body 3 is pressed against a flat and smooth surface (surface to be attracted) 6 such as glass or a mirror, the skirt body 3 is expanded and the bottom contact portion 7 (FIG. 9 (B) (the portion indicated by the oblique lines) is in close contact with the smooth surface 6, and a negative pressure space 8 is formed substantially at the center so that the suction cup 2 is adsorbed. The close contact portion 7 is formed in a ring shape with a close contact surface having a predetermined uniform width W1 around the center O1 of the negative pressure space 8. When the suction cup 2 is removed, an external force is applied to the protruding portion 4 and is peeled off with a force that overcomes the suction force of the close contact portion 7. For this reason, even a small-diameter suction cup cannot be peeled off unless it is a strong force. Thus, the conventional suction cup 2 presses the lower suction surface opening of the skirt body 3 against the smooth surface 6 so as to depressurize and absorb the internal air, and the skirt body 3 has a size, The adsorption performance is determined by the material, the thickness, the degree of internal pressure reduction, and the magnitude of the peeling force of the close contact portion 7 deformed according to the close contact surface. When these conditions are the same, a circular contact surface formed concentrically around the negative pressure space and including the outer edge farthest from the center exhibits maximum adsorption performance. That is, when the above conditions are the same, the maximum adsorption performance is exhibited when the contact surface is circular.

By the way, since the suction cup was comprised as mentioned above, there existed a problem that it would be difficult to remove once it adsorb | sucks. For this reason, the suction cup which controls the pressure of an internal negative pressure space is conventionally known (refer patent document 1).
JP 2001-122457 A (page 4, FIG. 2)

  The conventional suction cups must be provided with a mechanism for controlling the pressure in the internal negative pressure space, and cannot be applied to small independent suction cups used for daily necessities and accessories. Moreover, in the said general suction cup 2, in order to increase the area of the adsorption | suction part 7 which deform | transforms according to the smooth surface 6 as much as possible, since the contact | adherence surface is made circular and the adsorption | suction performance is improved, it is adsorbed by the smooth surface 6. When the suction cup 2 is removed, the skirt body 3 is deformed with a strong force to introduce air into the decompression space. For this reason, there is a problem that it is difficult for elderly people and children who are weak to remove.

  The present invention has been made to solve the above problems, and an object thereof is to provide an easy-to-use suction cup that can be easily removed with a simple configuration. It is another object of the present invention to provide a manufacturing sheet in which a number of easy-to-use suction cups that can be easily removed with a simple structure by integral molding. Furthermore, this invention aims at providing the suction tool using the easy-to-use sucker which can be removed easily.

The suction cup according to the present invention includes a skirt portion that is made of an elastically returnable and deformable soft material and expands downward, and when attached, presses the suction surface on the inner side of the skirt portion against the suction surface. In a suction cup that forms a negative pressure space inside and peels off the contact surface with an external force that overcomes the suction force when it is removed, the contact portion that is in close contact with the surface to be suctioned is made non-circular, and the contact area of the contact portion is negative. The skirt portion is formed by cutting out the lid-shaped molded body, and the skirt portion is formed on the outer side of the skirt portion. The cut surface is formed to be inclined from the center toward the outside .

The suction cup according to the present invention includes a skirt portion that is made of an elastically returnable and freely deformable soft material and expands downward, and when attached, presses the suction surface on the inner side of the skirt portion against the surface to be attracted. In a suction cup that forms a negative pressure space inside and peels off the contact surface with an external force that overcomes the suction force when it is removed, the contact portion that is in close contact with the surface to be suctioned is made non-circular, and the contact area of the contact portion is negative. The skirt portion is formed by cutting out the lid-shaped molded body, and the cutout surface outside the skirt portion, so as to be smaller than a virtual circular area whose radius is the distance from the outermost edge that is centered on the pressure space. Is formed so as to incline from the center toward the outside, thereby connecting the negative pressure space and the outside of the non-uniform portion of the non-circular contact surface formed along the circumferential direction centering on the negative pressure space. Short distance parts Deformed easily. For this reason, when an external force is applied to this part, deformation is likely to occur even with a slight force, and the internal negative pressure space communicates with the outside due to the deformation, and is easily detached. In addition, since the adhesion area of the adhesion surface is smaller than the circular area that exhibits the maximum adsorption performance, and the adsorption performance is reduced, it is more easily detached. For this reason, it becomes easy to peel off at the time of removal. Further, since the skirt portion is formed by cutting out the lid-shaped molded body, an easily removable suction cup can be obtained by a simple process such as a cut process. Furthermore, since the cutout surface on the outer side of the skirt portion is formed so as to be inclined from the center toward the outside, the outer edge of the close contact portion gradually becomes thin, so that it is easily deformed and easily removed.

The sucker sheet according to the present invention is a sucker sheet in which synthetic resin or rubber is integrally molded and a number of suckers are continuously arranged so as to be separable from each other , and the sucker is made of a soft material that can be elastically restored and deformed. It has a skirt that expands downward, and when attached, presses the inner suction surface of the skirt against the surface to be adsorbed to form a negative pressure space inside, and when removed, external force overcomes the adsorbing force. The suction part to be peeled off at a non-circular shape is formed in close contact with the surface to be adsorbed, and the contact area of the close contact part is formed with the radius from the outermost edge as the center of the negative pressure space. The skirt part is formed so as to be smaller than the virtual circular area, and the skirt part is formed by notching the lid-shaped molded body, and the notch surface outside the skirt part is formed so as to be inclined outward from the center. It is those that form.

In the sucker sheet according to the present invention, in the sucker sheet in which synthetic resin or rubber is integrally molded and a number of suckers are continuously arranged so as to be separable from each other , the sucker is made of a soft material that can be elastically restored and deformed. It has a skirt that expands downward, and when attached, presses the inner suction surface of the skirt against the surface to be adsorbed to form a negative pressure space inside, and when removed, external force overcomes the adsorbing force. The suction part to be peeled off at a non-circular shape is formed in close contact with the surface to be adsorbed, and the contact area of the close contact part is formed with the radius from the outermost edge as the center of the negative pressure space. The skirt part is formed by cutting out the lid-shaped molded body so that it is smaller than the virtual circular area, and the cutout surface outside the skirt part is formed to be inclined from the center toward the outside. By constituting the, can be produced sucker multiplicity integrally molded once. Since only the necessary number can be used separately, management and work are made more efficient. The sucker used separately is easily peeled off when removed.

The suction cup sheet according to claim 3 is formed by forming a flat adhesive portion bonded to the adherend portion on the outer upper surface of the skirt portion.

In the sucker sheet according to claim 3 , the flat adhesive part bonded to the adherend part is formed on the outer upper surface of the skirt part, so that the adhering part of one of the suckers separated from, for example, an accessory or the like If it adheres to the adherend part of a product or daily necessities, it is possible to easily provide a decorative product or daily necessities with an adsorbing tool. Further, the bonded portion of one sucker separated is bonded to a bonded portion, and the bonded portion of the other sucker separated is bonded to another bonded portion, and the one sucker and the other sucker If the skirt portions are superposed and adsorbed to each other, these suction cups can be used as a fastener such as a button or a fastener or an opening / closing tool.

An adsorbing tool using a suction cup according to a fourth aspect is obtained by providing the suction cup according to any one of the first to third aspects with a predetermined gap along an extending direction on a string material.

In the suction tool using the suction cup according to claim 4 , the suction tool according to any one of claims 1 to 3 is provided on the string member with a predetermined gap along the extension direction. Can be attached to a smooth surface such as glass or a mirror in a free shape, so that the decorativeness of windows and show windows can be improved, and it is easy to remove.

The suction cup according to the present invention includes a skirt portion that is made of an elastically returnable and deformable soft material and expands downward, and when attached, presses the suction surface on the inner side of the skirt portion against the suction surface. In a suction cup that forms a negative pressure space inside and peels off the contact surface with an external force that overcomes the suction force when it is removed, the contact portion that is in close contact with the surface to be suctioned is made non-circular, and the contact area of the contact portion is negative. The skirt portion is formed by cutting out the lid-shaped molded body, and the skirt portion is formed on the outer side of the skirt portion. Since the cut surface is formed so as to be inclined from the center toward the outside, it can be easily removed with a simple configuration and is easy to use. For this reason, it can be used even by weak elderly people and children.

The sucker sheet according to the present invention is a sucker sheet in which synthetic resin or rubber is integrally molded and a number of suckers are continuously arranged so as to be separable from each other , and the sucker is made of a soft material that can be elastically restored and deformed. It has a skirt that expands downward, and when attached, presses the inner suction surface of the skirt against the surface to be adsorbed to form a negative pressure space inside, and when removed, external force overcomes the adsorbing force. The suction part to be peeled off at a non-circular shape is formed in close contact with the surface to be adsorbed, and the contact area of the close contact part is formed with the radius from the outermost edge as the center of the negative pressure space. The skirt part is formed so as to be smaller than the virtual circular area, and the skirt part is formed by notching the lid-shaped molded body, and the notch surface outside the skirt part is formed so as to be inclined outward from the center. Since form was, it is possible to manufacture a sucker multiplicity integrally molded once, the cost can be reduced. Further, since only the necessary number can be separated and used, management and work are made efficient.

Since the suction tool using the suction cup according to the present invention is provided with the suction cup according to any one of claims 1 to 3 with a predetermined gap along the extending direction on the string material, It can be improved and is easy to remove.

  The purpose of obtaining a sucker that is easy to remove was realized by cutting out a part of the skirt, making the contact surface non-circular, and reducing the contact area.

  Hereinafter, the present invention will be described with reference to embodiments shown in the drawings. 1 is a perspective view showing a suction cup according to a first embodiment of the present invention, and FIGS. 2A to 2C are a plan view, a side view and a bottom view of the suction cup of FIG. 1, respectively. The suction cup 10 according to the present embodiment is made of an elastically returnable and deformable soft material made of rubber or synthetic resin. The suction cup 10 includes a skirt portion 13 and a mounting protrusion 14 formed to protrude from the center of the outer upper surface of the skirt portion 13. A through-hole 15 is formed in the attachment protrusion 14 so that an accessory 19 (see FIG. 7A) can be attached. Further, the attachment protrusion 14 can be attached to a part of the clothes 19B (see FIG. 7B).

  By the way, as shown in FIGS. 3A and 3B, the skirt portion 13 of the suction cup 10 is formed to expand downward in the shape of a lid with a flat circular shape C1, and the inner suction surface is recessed. A skirt-shaped main body (corresponding to the skirt main body 3 of the conventional suction cup 2 shown in FIG. 9) formed to be curved like a part of a spherical surface is cut out from above by a cutter (not shown). Cutting is performed along line segments AB, BC, CD, and DA connecting adjacent points of the four points A to D located at equal intervals on the outer circumference circle C1 ( (The hatched portion in FIG. 3B indicates the cut-off portion W). Moreover, when cutting, the cutter is cut with the upper side inclined toward the center of the suction cup and the lower side inclined outward (see cutting trajectories T1 and T2 in FIG. 3). For this reason, the notch surfaces 16A-B, 16B-C, 16C-D, and 16D-A are formed to be inclined from the center toward the outside, and the outer edges A to D are thin. In this way, the skirt portion 13 is formed such that a curved bottom surface 17 (see FIG. 2C) is obtained by cutting a part of the spherical surface into a square shape.

  When the curved bottom surface 17 of the skirt portion 13 is pressed against a flat and smooth surface (surface to be attracted) 6 (see FIG. 9B) such as glass or a mirror, the skirt portion 13 expands. Then, the close contact portion 13 </ b> A (the hatched portion in FIG. 2C) of the lower surface is in close contact with the smooth surface 6, and a negative pressure space 18 is formed substantially at the center, and the suction cup 10 is adsorbed to the smooth surface 6. It has become so. At this time, the close contact surface of the close contact portion 13A is not formed in the ring shape of the outer circumference circle C1 centering on the negative pressure space 8 as in the conventional suction cup 2, that is, along the circumferential direction. Rather than closely contacting with a uniform width, as shown in FIG. 2C, they are closely contacted in a substantially square shape with the outer edges A to D being stretched as corners. Each of the sides AB, BC, CD, and DA has an arc shape in which the central portion is slightly pushed outward by the material of the suction cup 10. When removing the suction cup 10 that is in close contact with the smooth surface 6, if an external force is applied to the protrusion 14, the skirt 13 is deformed, and the internal negative pressure space 18 communicates with the outside due to this deformation.

  Next, the operation of the suction cup 10 according to the above embodiment will be described. In the suction cup 10 according to the present embodiment, the close contact surface of the close contact portion 13A that is in close contact with the smooth attracted surface 6 is formed unevenly around the negative pressure space 18 with respect to the circular shape. Among the non-uniform parts of the contact surface formed along the circumferential direction centered on the part, the parts having a short distance connecting the negative pressure space 18 and the outside, that is, the sides AB, BC, C- The substantially central portion of D and DA is easily deformed by a slight external force, and the internal negative pressure space 18 and the outside are communicated with each other by the deformation, and are easily separated. For this reason, it becomes easy to peel off at the time of removal. Thus, in the suction cup 10 according to the above-described embodiment, the contact surface is not formed in a ring shape with the outer peripheral circle C1 centered on the negative pressure space 8, unlike the conventional suction cup 2, that is, the contact The surface is not in close contact with the circular shape that exhibits the maximum adsorption performance, but in close contact with the non-circular shape. Moreover, the suction cup 10 determines the contact area of the contact portion 13A with the distance r (r = A−O1 distance = B−O1) from the outer edges A to D farthest from the center with the negative pressure space 18 as the center. The distance is made smaller than the area of the virtual circle C1 formed with the distance = distance between C-O1 = distance between D-O1). For this reason, the contact surface of the contact portion 13A has a smaller contact area compared to a conventional suction cup provided with a circular contact surface that exhibits the maximum suction force, and the suction performance is degraded. Thus, in the suction cup 10 according to the present embodiment, the contact surface is non-circular, so that the contact surface is in close contact with the non-uniform width around the negative pressure space 18, and the area of the contact surface can be maximized. Since it is reduced from the virtual circular adsorption surface to be exhibited, the removal can be easily performed with a slight peeling force at the time of removal. In addition, since the area of the contact surface is small, it is easy to attach.

  In the above-described embodiment, the suction cup 10 is formed by cutting out a lid-shaped molded body (corresponding to the conventional skirt body 3) formed in the shape of a lid with a plane circle C1 by a cutter (not shown). However, the present invention is not limited to this, and as will be described later in the suction cup sheet, the cut surfaces 16A-B, 16B-C, 16C-D, and 16D-A may be molded by a mold. Needless to say. Further, although the skirt portion 13 is formed in a planar rectangular shape, the shape is not limited to this, and may be various shapes in design, as long as the adhesion surface is formed in a non-circular shape to weaken the suction force. It goes without saying.

  FIGS. 7A and 7B each show an example in which the suction cup 10 is used for decorations and daily necessities. For example, accessories 19 such as accessories 19 are attached to the through holes 15 of the suction cups 10. When the portion 19A is attached, it is possible to provide a decorative article or daily necessities including the suction cup 10 that can be easily removed. Furthermore, the accessory 19 provided with the suction cup 10 and another attached portion, for example, another suction cup 10 is attached to a part of the garment 19B, and both the suction cups 10 and 10 are connected to each other by the skirt portions 13 and 13. When the suction cups 10 and 10 are adsorbed in an overlapping manner, the suction cups 10 and 10 can be used as a fastener such as a button or a fastener or an opening / closing tool. Furthermore, since the skirt part 13 is formed in a rectangular shape, it can be attached to a rectangular window or a corner of glass. It can also be installed side by side with no gap.

  Next, a modified example of the suction cup 10 according to the first embodiment will be described. 4A to 4D are plan views showing suction cups 20, 30, 40, 50 according to the second embodiment, respectively, and the suction cup 10 according to the first embodiment has the skirt portion 13 disposed thereon. The suction cups 20, 30, 40, and 50 according to the second embodiment are formed in an arc shape that forms a part of the outer circumference circle C 1, while being formed by cutting out at four sides so as not to leave an arc-shaped portion. Except for the difference in the remaining part, it has almost the same configuration. The suction cup 20 shown in FIG. 4A is formed by the suction cup 10 according to the first embodiment being formed by cutting out the skirt portion 13 at four sides, whereas the skirt portion 23 has a right angle. Are cut out at two sides E-F and F-G, and the remaining portion H is formed in an arc shape. In the suction cup 30 shown in FIG. 4B, the skirt 33 is cut out at two parallel sides IJ and KL, and outer edges KI and J connecting these sides IJ and KL. -L is formed in an arc shape. The suction cup 40 shown in FIG. 4C has a skirt portion 43 with two parallel sides MN and OP, and one side NO with these two sides MN and OP perpendicular to each other. The outer edge PM connecting the other ends of the two parallel sides MN and OP is formed in an arc shape. In the suction cup 50 shown in FIG. 4D, the skirt portion 53 is cut out at one side QR in a direction perpendicular to the warp direction, and an outer edge RQ connecting the side QR is formed in an arc shape. Is done. As described above, in the suction cups 10 to 50 according to the present invention, the contact surface is formed in a non-circular shape and the contact width is unevenly formed around the negative pressure space. Then, the contact area is reduced from the area of the virtual circle C1 formed by using the distance between the outer edge and the center farthest from the center of the negative pressure space as the radius.

  Next, the suction cup sheet according to the first embodiment of the present invention will be described. FIGS. 5A and 5B are a perspective view and a plan view, respectively, showing the suction cup sheet according to the first embodiment of the present invention. The suction cup sheet 100 according to the present embodiment is formed by integrally molding synthetic resin or rubber according to the drawings or the formwork, and continuously arranging a number of suction cups 60 so as to be separable from each other. A plurality of suction cups 60 formed in the suction cup sheet 100 and arranged in the vertical and horizontal directions are different from the suction cup 10 according to the first embodiment, in which the horizontal through hole 15 is formed in the projection 14. The structure is substantially the same except that a mounting hole 65 recessed in the upper surface of 64 is formed. That is, the suction cup 60 includes a skirt portion 63 and a protrusion 64 that are formed in a rectangular shape. The skirt portion 63 has a recessed inner suction surface formed in a rectangular shape. Further, the skirt portion 63 includes, for each suction cup 60, line segments A-B, B-C, C-D that connect adjacent points with respect to four points A to D located at equal intervals on the outer circumference circle. According to D-A, notched surfaces 66A-B, 66B-C, 66C-D, and 66D-A are formed on the outer side. These cut-out surfaces 66A-B, 66B-C, 66C-D, 66D-A are cut-out surfaces 16A-B, 16B-C, 16C-D, 16D-A of the suction cup 10 according to the first embodiment. Similarly, it is inclined from the center toward the outside. This suction cup sheet 100 is a part of each line segment AB, BC, CD, DA where the suction cups 60 correspond to the lower ends of the cut-out surfaces 66A-B, 66B-C, 66C-D, 66D-A. The lower ends A-B, BC, CD, and DA are formed thin and can be easily separated.

  Next, the operation of the suction cup sheet 100 according to the first embodiment will be described. In the suction cup sheet 100 according to the first embodiment, synthetic resin or rubber is integrally molded, and a large number of suction cups 60 are continuously arranged so as to be separable from each other. be able to. In addition, since the suction cups 60 can be used by separating them as many as necessary, the management and work are made more efficient. Further, the sucker 60 is formed by forming the skirt portion 63 in a rectangular shape, so that the manufactured sucker sheet 100 can avoid the occurrence of a dead space between the suckers 60, and the sucker sheet 100 can be used up without waste. be able to. Further, since the skirt portion 63 of the suction cup 60 is formed with the notch surfaces 66A-B, 66B-C, 66C-D, and 66D-A being inclined, the separated suction cup 60 has the outer edge side AB, Since B-C, C-D, and D-A are gradually thinned, they are easily deformed and easily removed.

  FIG. 6 shows a suction cup sheet 110 according to the second embodiment. The suction cup sheet 110 according to the second embodiment is the same as the upper face of the skirt portion 63. On the other hand, the upper surface of the rectangular skirt portion 73 is formed flat and bonded to a flat and smooth surface (bonded portion) 6 such as glass or a mirror. Except that the adhesive portion 73A is formed by sticking the adhesive material. In the suction cup sheet 110 according to the second embodiment, since the flat adhesive portion 73A is formed on the upper surface of the skirt portion 73 of the separated suction cup 70, the adhesive portion 73A of one separated suction cup 70 is For example, if it adheres to the adherend part of accessories, such as accessories, and daily necessities, the ornaments and daily necessities provided with the suction cup 70 that can be easily removed can be provided. Further, the adhering portion 73A of the one sucker 70 separated is adhered to a certain adherend portion, and the adhering portion 73A of the other sucker 70 separated is adhered to another adhering portion. When the skirt portions 73 and 73 are superposed on each other and adsorbed on the other suction cup 70, the suction cups 70 and 70 can be used as fasteners and opening / closing tools such as buttons and fasteners, for example. Moreover, you may make it adhere | attach the separated suction cup 70 at predetermined intervals, for example so that it may mention with the suction tool mentioned later. Note that the adhesive portion 73A is configured by adhering an adhesive material, but is not limited thereto, and may be applied with a detachable adhesive material, or a hook shape and a pile shape. Any one of removable tapes made of cloth can be attached.

  Although the suction cup sheets 100 and 110 according to the first and second embodiments have been described with respect to the suction cups 60 and 70 having the rectangular skirt portions 63 and 73, the present invention is not limited to this. For example, FIG. Needless to say, the suction cups 20 to 50 shown in (A) to (D) are also applicable. That is, synthetic resin or rubber may be integrally molded so that the cut-out surfaces of the skirt portions 23 to 53 are continuously molded, and the plurality of suction cups 20 to 50 may be continuously arranged so as to be separated from each other.

  Next, the suction tool according to the first embodiment of the present invention will be described. FIG. 8 is a perspective view showing the suction tool 200 according to the first embodiment of the present invention. As shown in FIG. 8, the suction tool 200 according to the first embodiment is provided with the suction cup 10 according to the first embodiment with a predetermined gap in the extension direction on the string material 201. . The suction cup 10 has a protrusion 14 inserted into a hole (not shown) of a string member 201 and a fastener 202 is attached to the through hole 15 and fixed. Since the adsorbing tool 200 can be attached to the smooth surface 6 such as glass or a mirror in a free shape, it is possible to improve the decorative properties such as a window or a show window, and it is easy to remove. Needless to say, the string material 201 may be provided with the suction cups 20 to 70 with a predetermined gap along the extending direction.

It is a perspective view which shows the suction cup which concerns on the 1st Example of this invention. Example 1 (A) thru | or (C) are the top view, side view, and bottom view of the suction cup of FIG. 1, respectively. (A), (B) is respectively explanatory drawing which shows the cutting locus processed into the suction cup of FIG. 1, and the top view which shows the suction cup after a process. (A) thru | or (D) is a top view which shows the suction cup which concerns on a 2nd Example, respectively. (Example 2) (A), (B) is the perspective view and top view which respectively show the suction cup sheet | seat which concerns on the 1st Example of this invention. (Example 3) It is a top view which shows the suction cup sheet | seat which concerns on a 2nd Example. Example 4 (A), (B) is explanatory drawing which shows the example applied to the ornaments and daily necessities, respectively using the suction cup of FIG. It is a perspective view which shows the suction tool which concerns on 1st Example of this invention. (Example 5) (A), (B) is the perspective view which shows the conventional suction cup, respectively, and explanatory drawing which shows an adsorption | suction state.

Explanation of symbols

6 Adsorbed surface 10 Suction cup 13 Skirt portion 13A Adhering portion 18 Negative pressure space

Claims (4)

Equipped with a flexible skirt that can be elastically restored and deformed, and has a skirt that expands downward. When attached, the inner suction surface of the skirt is pressed against the surface to be adsorbed to form a negative pressure space inside. When removing the suction cup, the adhesion surface is peeled off with an external force that overcomes the adsorption force.
The close contact portion that is in close contact with the surface to be attracted is made non-circular, and the close contact area of the close contact portion is made smaller than the virtual circular area that is formed with the distance from the outermost edge as the radius centered on the negative pressure space. The skirt portion is formed by notching the lid-shaped molded body, and the notch surface outside the skirt portion is formed to be inclined from the center toward the outside . In a sucker sheet that is integrally molded with synthetic resin or rubber, and a large number of suckers are continuously arranged so that they can be separated from each other .
The suction cup is composed of a flexible material that can be elastically restored and deformed, and has a skirt part that expands downward. When installed, the suction surface on the inner side of the skirt part is pressed against the surface to be adsorbed so that it has a negative pressure inside. A suction cup that forms a space and peels it off with an external force that overcomes the adsorption force when it is removed.
The close contact portion that is in close contact with the surface to be attracted is made non-circular, and the close contact area of the close contact portion is made smaller than the virtual circular area that is formed with the distance from the outermost edge as the radius centered on the negative pressure space. The suction cup sheet is characterized in that the skirt portion is formed by cutting out the lid-shaped molded body, and the cutout surface outside the skirt portion is formed so as to be inclined from the center toward the outside . The suction cup sheet according to claim 2, wherein a flat adhesive portion bonded to the adherend portion is formed on the outer upper surface of the skirt portion. An adsorber using a sucker, wherein the stringer is provided with the sucker according to any one of claims 1 to 3 at a predetermined gap along an extending direction.

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