JP4938908B1 - Adhesive pad and manufacturing method thereof - Google Patents

Abstract

An attachment pad which can be replaced with a suction cup and which does not fall off from a mounting surface semipermanently is realized.
A circular film 1 is made of, for example, a thin film made of vinyl chloride, and itself has adhesiveness, softness, flatness and transparency. On the central portion of the upper surface 1US of the film 1, a protrusion 2 made of, for example, vinyl chloride, which is molded so as to be able to attach household items or the like, is bonded by a high frequency bonding method. A flat surface between the outer edge 1USE of the upper surface 1US of the film 1 and the outer edge 2EE of the protrusion 2 forms an exposed portion 1USA with respect to the outside. After the entire lower surface 1LS of the film 1 is placed on the surface 10S having a smooth surface such as a mirror surface, a force is applied to rub the exposed portion 1USA over the entire surface toward the outer edge 1USE with the fingertips of the hand. Thus, the lower surface 1LS of the film 1 is entirely stuck on the object upper surface 10S. With the passage of time, air granules are also extruded, and the film 1 is perfectly attached on the upper surface 10S of the object.
[Selection] Figure 1

Description

  The present invention relates to an adhesion pad that can be substituted for a suction cup.

  FIG. 5 is a side view schematically showing the configuration of a general suction cup using vacuum pressure. The suction cup 100 is made of, for example, rubber, and includes a projecting portion 100T and a smoothly curved surface 100S formed integrally with the portion 100T.

  When a pressure is applied to the protrusion 100T from a human hand, the pressure is transmitted to the curved surface 100S, the curved surface 100S spreads in a flat shape, and is attracted to the attracted surface by a vacuum pressure.

  Such an integrally formed suction cup 100 is highly convenient because it is adsorbed on a flat surface by a one-touch operation that a person simply presses with his / her hand.

JP-A-10-52613

  However, because there are four seasons in Japan, conventional suction cups that use vacuum pressure repeat expansion and contraction over time, or vibration from the outside, due to the occurrence of temperature differences and humidity fluctuations. Or receive external pressure. As a result, a change over time occurs in which air enters and exits through a gap generated at the outer edge of the suction surface of the suction cup, and the suction cup falls off due to a decrease in vacuum pressure. The drop-off of the vacuum pressure suction cup due to this change over time is an unavoidable situation as long as a temperature difference or the like occurs.

  The present invention has been made to overcome such a current situation, and its main object is to propose the realization of an adhesive pad in which the drop-off phenomenon does not occur semipermanently. Furthermore, a secondary object of the present invention is to propose the realization of a printable adhesive pad.

  An adhesive pad according to the present invention has a circular flat film having a sticky adhesiveness and a softness as a whole, and a circular film having a generally flat circular shape in plan view. A protrusion coupled to a central portion of the upper surface of the film, and a portion of the upper surface of the circular film between the peripheral edge of the upper surface of the circular film and the outer edge of the protrusion is entirely exposed. It is characterized by forming an exposed portion.

  According to the subject matter of the present invention, the adhesive pad can be easily applied to a flat and smooth target surface having a smooth touch without using an adhesive by simply applying an adhesive force from the fingertip of the hand. In addition to being able to be attached, the attachment pad can be semi-permanently attached to the target surface without dropping off. Moreover, even if the main attachment pad is peeled off from the target surface, no trace remains on the target surface, and the main attachment pad can be reused many times.

  Hereinafter, various embodiments of the present invention will be described in detail along with the effects and advantages thereof with reference to the accompanying drawings.

It is a front view which shows the structure of the adhesion pad which concerns on Embodiment 1 of this invention. It is a top view which shows the structure of the adhesion pad which concerns on Embodiment 1 of this invention. It is a top view which shows the structure of the adhesion pad which concerns on Embodiment 2 of this invention. It is a flowchart which shows the manufacturing method of the adhesion pad which concerns on Embodiment 2 of this invention. It is a side view which shows typically the structure of the conventional suction cup.

  (Embodiment 1)

  FIG. 1 is a front view showing a configuration of an adhesion pad according to the present embodiment. However, the object 10 is drawn as a configuration of a longitudinal section for convenience of illustration. FIG. 2 is a plan view showing the configuration of the main attachment pad when the main attachment pad is viewed from the direction of the arrow AR in FIG.

<Adhesion pad structure>
1 and 2, the circular film 1 is a film having an upper surface 1US and a lower surface 1LS that are circular planes parallel to each other, and a thin columnar film having a circular cross section in plan view. It is. The upper surface 1US and the lower surface 1LS are circular with a radius of 1R. The circular film 1 itself is a flat film having a sticky adhesiveness and a soft softness, and having a transparent property as a whole. Specifically, the circular film 1 is made of vinyl chloride (PVC) having adhesiveness, softness, and transparency. The adhesion pad shown in FIG. 1 has a structure that is symmetric with respect to the central axis CA of the circular film 1. The diameter of the flat circular cross section of the circular film 1 is, for example, 50 mm.

  Similarly, a soft and elastic projection 2 is bonded to the central portion of the upper surface 1US of the circular film 1 with respect to the central axis CA by using a high frequency bonding method. In FIG. 1, the protrusion 2 is drawn symmetrically.

  And by the coupling | bonding of the center part of the upper surface 1US, and the protrusion 2, a part of upper surface 1US of the circular film 1 between the outer periphery 1USE of the upper surface 1US of the circular film 1 and the outer edge 2EE of the protrusion 2 is the whole. Exposed. The exposed portion of the upper surface 1US of the circular film 1 forms a transparent “exposed portion 1USA”. In this exposed portion 1USA, the protrusion 2 does not get in the way, and the person pushes the entire exposed portion toward the outer peripheral edge 1USE with the fingertip of one hand. It can be made easy.

  On the other hand, the protrusion 2 has, for example, a groove 2RP and / or a through-hole 2H which is formed in advance before the coupling with the central portion of the upper surface 1US of the circular film 1 by the high frequency bonding method. As described above, the projection 2 is made of a material having flexibility and elasticity. However, from the viewpoint of cost, processing surface, and improvement in adhesion by a high-frequency adhesion method, the projection 2 It can be said that the material is preferably the same as the material of the circular film 1. As an example, the protrusion 2 and the circular film 1 are made of vinyl chloride (PVC). The shape of the protrusion 2 is basically an arbitrary shape. In the present embodiment, as shown in FIG. 2, the lowermost trapezoidal pedestal portion 2D of the protrusion 2 has a circular cross section that forms a circular bottom surface having a maximum radius of 2R. A linear member or the like for hanging the object is hooked on the groove 2RP of the protrusion 2. Further, for example, a part of a hook is inserted and attached to the through hole 2H of the protrusion 2. It is free to perform other processing / molding on the protrusion 2. Reference numeral 2T denotes the head of the projection 2 for forming the groove 2RP. The diameter twice the maximum radius 2R of the trapezoidal pedestal portion 2D is 22 mm as an example value. Further, the protrusion 2 is not necessarily required to have softness as long as it can be bonded to the central portion of the upper surface 1US of the circular film 1 by a high-frequency adhesive method, and may be a hard object.

  Regarding the thickness T of the circular film 1 shown in FIG. 1, as a specific example, when a household product is attached to the projection 2 (a weight of about 1 kg to 2 kg (9.8 N to 19.6 N)). In the range of 0.16 mm to 0.20 mm is employed. When a thickness T exceeding 0.20 mm is employed, 1) the time required for adhering the lower surface (bottom surface) 1LS of the circular film 1 over the entire surface 10S of the object 10 is as follows. Compared to the adhesion time when set within the range, it increases by about 4 to 5 times, which is not practical. Moreover, 2) the thicker the thickness T is, the more difficult it is to adhere to the surface 10S of the object 10, and 3) the transparency of the attached circular film 1 decreases, and the attached surface of the circular film 1, ie, the figure. As a result, the outer peripheral edge 1USE is easily noticeable, and a situation contrary to the realization of the purpose (transparency) to be achieved by the present adhesion pad occurs. On the other hand, if the thickness T is set to a value smaller than the above range and the thickness of the circular film 1 is made too thin, the strength of the central portion of the circular film 1 is reduced. There may be cases where the film 1 is torn.

  Based on the test conducted by the inventors, the shape of the film must be the circular film 1 described above. When the shape of the film has a square cross section, the object is suspended from the groove 2RP of the protrusion 2 so that the surface of the film is smooth and flat and adheres to the surface 10S of the polished object 10. When the film is pulled by applying a force in the vertical direction (downward), the film is easily peeled off. However, when the shape of the film is set to the shape of the circular film 1 having a circular cross section as proposed in the present embodiment, the load applied in the longitudinal (downward) direction is reduced in all directions on the film. It will be evenly distributed in all directions. For this reason, in the case of the circular film 1 having a diameter of 50 mm, even if a load (392N) having a vertical tensile strength of 40 kg is applied, the circular film 1 is not peeled off from the surface 10S of the object 10. Therefore, the present invention employs the circular film 1 as a film shape capable of realizing a sense of security and safety that does not drop off.

<Adhesion operation of adhesion pad>
The object 10 to which the present attachment pad illustrated in FIG. 1 and FIG. For example, the surface 10S of the object 10 is a glass surface, a mirror surface, a tile surface without a pattern, a metal-coated surface, or a resin surface.

  First, a person places the lower surface 1LS of the circular film 1 of the adhesion pad illustrated in FIGS. 1 and 2 entirely on the surface 10S of the object 10. Since the circular film 1 itself has adhesiveness and softness due to this placement, the lower surface 1 LS of the circular film 1 is in a state of being temporarily stuck on the surface 10S of the object 10.

  Thereafter, the person touches one or more fingertips of one hand of his / her hand with the exposed portion 1USA of the book attachment pad, and then touches the fingertip of the circular film 1 from the outer edge 2EE side of the protrusion 2. The entire surface of the exposed portion 1USA is rubbed toward the upper surface periphery 1USE. The air, moisture, or minute moisture existing between the lower surface 1LS of the circular film 1 and the surface 10S of the object 10 is simply caused by the adhesion force when a human fingertip rubs. The lower surface 1LS of the circular film 1 is adhered or pasted over the entire surface 10S of the object 10 while being pushed out to the outside of 1USE. Thereby, the circular film 1 does not fall off from the surface 10S of the object 10 semipermanently.

Strictly speaking, in the initial stage after pasting, fine air dust particles exist between the surface 10S of the object 10 and the lower surface 1LS of the circular film 1. This air soot is a minute amount that cannot cause the lower surface 1LS of the circular film 1 to fall off from the surface 10S of the object 10. Then, the minute particles of air are pushed out and lost with time. As a result, the lower surface 1LS of the circular film 1 is completely attached on the surface 10S of the object 10. This phenomenon is that, as time passes, the circular film 1 slightly expands and contracts in response to changes in temperature and humidity, and air droplets are pushed out while repeating the expansion or contraction. Due to

Therefore, after the adhesion between the lower surface 1LS of the circular film 1 and the surface 10S of the object 10, the integration of the adhesion pad and the object 10 proceeds with time, and the adhesion force is further increased.

  As described above, for example, a household item such as a soap box is suspended from a flat tile surface having a smooth texture without a pattern through the book attachment pad illustrated in FIGS. In this case, as long as the circular film 1 is not intentionally peeled off by hand, the sticking pad will not fall off at all regardless of the passage of time, and the user will feel safe and safe and reliable. You can continue to give sex. In addition, as described above, simply applying adhesive force with a fingertip and sticking the circular film 1 using its adhesiveness, for example, a pad for attaching an object is a smooth surface such as a mirror surface, a window glass surface or a tile surface. It can be attached to a flat surface without feeling semi-permanently falling off. For this reason, the adhesion pad can be easily adhered to the surface 10S of the object 10 without using an adhesive, and the adhesion pad can be manually attached without leaving any adhesion marks on the surface 10S of the object 10. By peeling off, this adhesion pad can be reused as many times as necessary. In addition, since the circular film 1 having a relatively thin thickness having transparency is used, the presence of the upper peripheral edge 1USE of the circular film 1 is visually recognized in a state where the adhesion pad is adhered to the object 10. This adhesion pad has the advantage that it is difficult to feel. Therefore, this adhesion pad can give a refreshing and compact feeling to the user. Moreover, the strength of the load resistance is as described above.

(Embodiment 2)
The feature point of the adhesion pad according to the present embodiment is that the adhesion pad described in the first embodiment further includes at least one printed material on the exposed portion of the upper surface of the circular film. . Each of the other components is the same as the corresponding component of the adhesion pad according to the first embodiment.

  FIG. 3 is a top view of the adhesion pad corresponding to FIG. It is the protrusion 2 of arbitrary shape which was made. CA is the central axis of the adhesion pad.

  As illustrated in FIG. 3, at least one substrate 3 such as a polka dot pattern is printed on the exposed portion 1USA of the upper surface 1US of the circular film 1. In FIG. 3, for the convenience of display, the upper surface of each substrate 3 is indicated by hatching. As described above, the circular film 1 is a transparent thin film, and when the film 1 is attached on the surface 10S of the object 10 (FIG. 1), the outer peripheral edge 1USE is difficult to visually recognize. The printed material 3 appears to float on the object 10.

  FIG. 4 is a flowchart illustrating a method of manufacturing the adhesion pad illustrated in FIG. In FIG. 4, first, a circular film 1 (for example, a vinyl chloride circular film) 1 having the characteristic points described in the first embodiment and having no projection 2 yet bonded at this point is prepared. (Step S1).

  Next, using an appropriate printing technique such as coating, the substrate is printed on the peripheral portion of the circular film 1 whose upper surface is entirely flat, that is, on the portion corresponding to the exposed portion 1USA of the upper surface 1US in FIG. 3 is printed (step S2).

  Thereafter, a soft projection 2 made of, for example, vinyl chloride, which is molded so that daily goods or household goods can be attached, is bonded onto the central portion of the upper surface 1US of the circular film 1 by a high frequency bonding method (step S3). Upon completion of this process, an adhesion pad is formed in a state where printed matter is also drawn on the exposed portion 1USA as schematically shown in the top view of FIG. Since the present manufacturing method basically applies only the flatness of the upper surface 1US of the circular film 1, it can be said that it is an easy manufacturing method. The design of the substrate 3 itself is appropriately selected according to the use of the present attachment pad.

(Appendix)
While the embodiments of the present invention have been disclosed and described in detail above, the above description exemplifies aspects to which the present invention can be applied, and the present invention is not limited thereto. That is, various modifications and / or variations on the described aspects can be considered without departing from the scope of the invention.

  The present invention is suitable for application to a case where a pad is attached to a smooth, flat and smooth target surface (eg, mirror surface) and a structure is attached to the target surface via the pad. It is.

DESCRIPTION OF SYMBOLS 1 Circular film 1US Upper surface 1LS Lower surface 1USE Upper surface periphery 1USA Upper surface exposed part 2 Protrusion 2EE Protrusion outer edge 3 Printed material

Claims (5)

A circular film that is entirely transparent and has a flat, circular shape in plan view, and itself has sticky tackiness and softness;
A protrusion coupled to a central portion of the upper surface of the circular film,
A part of the upper surface of the circular film between the peripheral edge of the upper surface of the circular film and the outer edge of the protrusion forms an exposed portion that is entirely exposed. The attachment pad according to claim 1,
The adhesive pad, wherein the circular film is made of vinyl chloride. The attachment pad according to claim 1 or 2,
The circular pad and the protrusion are made of the same material, and the adhesion pad is characterized in that: It is an adhesion pad given in any 1 paragraph of Claims 1 thru / or 3,
An adhesion pad, further comprising a substrate printed on the exposed portion of the circular film. It is a manufacturing method of the adhesion pad according to claim 1,
Printing on the exposed portion which is a plane of the circular film;
And a step of bonding the projection formed by predetermined molding to the central portion of the upper surface of the circular film after printing by a high frequency bonding method.