KR20170001946U

KR20170001946U - Detachable pad and structure using thereof

Info

Publication number: KR20170001946U
Application number: KR2020150007703U
Authority: KR
Inventors: 이을호
Original assignee: 이을호
Priority date: 2015-11-25
Filing date: 2015-11-25
Publication date: 2017-06-02

Abstract

A film member comprising one of polyethylene terephthalate (PET), polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), and polyurethane (PU); An adhesive coating layer coated on the lower surface of the film member and comprising any one of silicone, urethane and soft PVC; And a releasable member formed on a lower surface of the adhesive coating layer to provide a detachable pad which can be easily detached and attached with a strong adhesive force for a long time with a simple component and a low manufacturing cost and a detachable structure using the detachable pad.

Description

&Lt; Desc / Clms Page number 1 > DETACHABLE PAD AND STRUCTURE USING THEREOF <

The present invention relates to a structure such as a detachable hook, a toothbrush holder, and the like.

Attach various structures such as hooks, hanger, toothbrush holder, soap holder, etc. to the attachment surface of wall, glass, mirror, household appliances,

Generally, when a structure is attached to a mounting surface, it is fixed using a double-sided tape, a hot melt (glue gun), or a nail.

However, when the structure is fixed to the mounting surface by the above-described method, it is impossible to move the mounting structure by changing the mounting position of the structure. Particularly, in the double-faced tape or hot melt method, the adhesive mark is left on the mounting surface, There was a problem.

It is possible to attach and detach a structure to the mounting surface by using a semi-spherical shaped vacuum adsorbent made of rubber or soft synthetic resin. However, the vacuum adsorbent is pressed on the mounting surface to generate a vacuum inside and is attached to the mounting surface by vacuum force , There is a problem in that it is detached from the adhering surface after a certain time due to the restoring force of the adsorption sphere or the outside air temperature.

In order to solve the above problems, Korean Patent Laid-Open Publication No. 10-2008-0102499 (hereinafter referred to as "Citation 1"), Korean Patent Registration No. 10-0919232 (hereinafter referred to as "Citation 2" (Hereinafter referred to as Reference Document 3), Korean Patent Registration No. 10-1196159 (hereinafter referred to as Reference Document 4), and Korean Patent Registration No. 10-1345851 Quot; Patent Document 5 ") discloses a vacuum adsorption pad technique using a film.

Generally, when the film is placed on a smooth attachment surface such as a watery glass surface and the film is vertically pushed down, the film does not fall off the adhesion surface.

This is because the water between the film and the attachment surface keeps the vacuum by blocking the air inflow to the interface between the film and the attachment surface, where the water acts as a strong adhesive to hold the film and the attachment surface itself from the vertical load But the film can be attached to the attachment surface by blocking the inflow of air.

Reference 1 discloses a technique for detachably attaching a structure to a thin resin film using the above-described principle.

However, if the film is pulled from the attachment surface to the side not perpendicular, the film slips against the attachment surface.

Therefore, the cited document 1 has a problem that the film exposed to the outside extended to the outer periphery of the structure can not maintain the vacuum force between the film and the adherend for a long time, and eventually falls off.

In Patent Document 1, a synthetic resin such as PP (polypropylene), PE (polyethylene) or the like or a thin film made of a rubber material is described which is excellent in adhesion of the film itself. However, in order to maintain the adhesiveness of the film itself, However, when the film is thin, there arises a problem that the bonding portion between the structure and the film tears when a load is applied to the structure.

Cited Documents 2 to 5 include an additional component for pressing the film protruding to the outside of the structure in order to solve the problem of the cited document 1, thereby causing a problem of raising the production cost.

Citation 1: Korean Patent Publication No. 10-2008-0102499 Citation 2: Korean Patent Registration No. 10-0919232 Reference 3: Korean Patent Registration No. 10-1063058 Reference 4: Korean Patent Registration No. 10-1196159 Reference 5: Korean Patent Registration No. 10-1345851

It is an object of the present invention to provide a detachable pad and a detachable structure using the detachable pad, which can solve the above-described problems of the prior art and can maintain a strong adhesive force for a long period of time.

In order to accomplish the above object, a detachable pad according to an embodiment of the present invention may be made of polyethylene terephthalate (PET), polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP) a film member comprising one of polypropylene and polyurethane (PU);

An adhesive coating layer coated on the lower surface of the film member and comprising any one of silicone, urethane and soft PVC; And a release member formed on the lower surface of the adhesive coating layer.

In the removable pad, the thickness of the film member is preferably 25 micrometers or more and 200 micrometers or less.

In the removable pad, the thickness of the film member is preferably 50 micrometers or more and 125 micrometers or less.

In the removable pad, the thickness of the adhesive coating layer is more preferably 15 micrometers or more and 30 micrometers or less.

The removable pad may further include a reinforcing member formed in a donut shape on the outer surface of the upper surface of the film member.

In the attachable / detachable pad, the reinforcing member may be made of polyethylene terephthalate (PET), polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), and polyurethane (PU) polyurethane. < / RTI >

In the removable pad, the thickness of the reinforcing member is preferably equal to or greater than the thickness of the film member.

In order to achieve the above object, a detachable structure according to an embodiment of the present invention includes an attachment attached to an upper surface of the film member.

According to the present invention, it is possible to provide a detachable pad and a detachable structure using the detachable pad that can be detachably attached and can maintain a strong adhesive force for a long time, while being manufactured at a low cost with a simple component.

1 is a front view illustrating a detachable structure in which a hook is coupled to a detachable pad according to an embodiment of the present invention.
Figure 2 is a side view of the detachable structure of Figure 1;
3 is a sectional view of components of the detachable structure of FIG.
FIG. 4 is a front view illustrating the attachment to the wall surface using the detachable structure of FIG. 1. FIG.
FIG. 5 is a front view illustrating the principle of generating a vacuum force when a load is applied to a detachable structure attached to a wall surface of FIG. 4. FIG.
6 is a sectional view taken along the line AA in Fig.
Fig. 7 is a conceptual diagram for explaining the principle of the load-bearing weight of the detachable pad in order to further explain the principle.
Fig. 8 is a front view showing the phenomenon that the removable pads are separated from the wall surface.
9 is a front view illustrating a detachable structure in which a hook is coupled to a detachable pad according to another embodiment of the present invention.
10 is a side view of the detachable structure of Fig.
11 is a front view illustrating a principle of generating a vacuum force when a load is applied to a detachable structure attached to a wall surface of FIG.
12 is a sectional view taken along a line BB in Fig.
FIG. 13 is a perspective view illustrating a detachable structure in which a toothbrush holder is coupled to the detachable pad of FIG. 1;

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail.

It should be understood, however, that the appended claims are not intended to limit the invention to the particular embodiments, and that all changes, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

In the following description, 'adhesion' refers to a viscosity that generates a frictional force with respect to a lateral load due to stickiness, and 'adhesion' refers to a physical load applied to a vertical load A double-sided tape, a bond, or the like.

Referring to FIGS. 1 to 4, a detachable pad according to an embodiment of the present invention and a method of attaching the detachable pad to a component and a wall of a detachable structure using the detachable pad will be described.

The attachment / detachment structure 100 is largely composed of the attachment / detachment pad 120 and the attachment 110 attached to one side of the attachment / detachment pad 120.

The detachable pad 120 includes a film member 121 and an adhesive coating layer 122 coated on one surface of the film member 121 as shown in FIGS.

The attachment 110 is attached to the opposite side of the adhesive coating layer 122 of the film member 121 and may be in various forms such as a hook hanger 110 for hanging objects, a toothbrush holder 111 (FIG. 11) , A metal structure, or the like, and may be an elastic material such as rubber, silicon, or the like, but any material can be used as long as it is attached to a film member.

As a method for attaching the adherend 110 to the film member 121, it is possible to bond them using an adhesive material such as a double-faced tape, a hot melt resin, an adhesive bond, or the like, The bonding portion 140 may be formed.

The film member 121 may be made of any one of polyethylene terephthalate (PET), polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), and polyurethane One polymer film or a polymer film containing any one of them may be used.

In the present invention, a polyethylene terephthalate (PET) film having high transparency was used as an example.

The adhesive coating layer 122 formed on the back surface of the film member 121 is an elastic material such as silicone, urethane and soft PVC and has viscosity. Since foreign materials such as dust can easily adhere, And the user removes the release member 130 immediately before use and attaches the attaching / detaching pad 120 so that the adhesive coating layer 122 comes into contact with the attaching surface 10 of glass or the like.

The release member 130 may be made of the same material as the film member 121 or may be made of a material including a usable material for the film member 121. [

It is preferable that the thickness of the release member 130 is thinner than or equal to the thickness of the film member 121. [

Referring to FIGS. 5 and 6, a description will be made of the behavior when the attachment / detachment structure 100 attached to the attachment surface 10 receives an external load.

The attachment / detachment structure 100 is attached to the attachment surface 10 which is a vertical wall surface and a load is applied in a downward direction when an object is hooked on the attachment 110 such as a hook and the attachment 110 and the film member 121 The upper part of the adherend 110 tends to separate from the film member 121 with the lower end of the bonding surface as a fulcrum while the adherend 110 and the film member 121 are strongly bonded to the adhering part 140, Is transmitted to the film member 121. The film member 121,

At this time, a portion of the attaching / detaching pad 120 corresponding to the upper portion of the attachment 110 may be separated from the attaching surface 10, and the outer region A of the attachment / detachment pad 120, There is a supporting region B which is not separated from the attachment surface 10.

Referring to FIG. 5, a detailed description will be given below.

It is assumed that a load F is applied to the hook end of the hook 110 so that the rotation momentum acts on the lower end of the hook as a fulcrum and thus the detachable pad 120 is separated from the attachment surface 10 A is formed at the upper end of the hook so that the support area B where the detachable pad 120 is not detached from the attachment surface 10 blocks the release area A from the outside air, The vacuum force P is increased by the height at which the attachable / detachable pad 120 is separated from the attaching surface 10.

Since the vacuum force P increases in accordance with the external load F, the detachable pad 120 is prevented from being detached from the mounting surface 10. [

The adhesive coating layer 122 of the attaching / detaching pad 120 corresponding to the supporting region B has a small load-bearing weight with respect to the vertical load but a strong load-bearing weight with respect to the horizontal load with a strong viscous frictional force R.

Therefore, unlike the conventional technique, the present invention can increase the viscous frictional force of the adhesive coating layer 122 in addition to the vacuum force of the film, so that it can have a strong load bearing weight.

Since the adhesive property of the adhesive coating layer 122 has a wet coating, when the external load F is removed, the releasing area A of the removable pad 120 provides a restoring force to be attached to the mounting surface 10 by itself do.

6 is a diagram illustrating an example in which a load is applied vertically on a plane in order to explain the load analysis in more detail.

A uniform load is applied to the attaching / detaching pad 120 in an area corresponding to the sticking part 140 when an external load applied to the sticking part 110 is denoted by "F".

The adhesive layer 122 of the detachable pad 120 is relatively weak in resistance to vertical load so that the area '? D1' corresponding to the adhesive portion 140 can be detached from the mounting surface 10.

However, the remaining area '? (D3-d1)' of the removable pad 120 is attached to the mounting surface 10.

Therefore, a negative pressure? P due to vacuum is formed in the space between the attachment / detachment pad 120 and the attachment surface 10 in the region? D1 corresponding to the adhesion portion 140. As the external load F increases, Correspondingly the sound pressure [Delta] p also increases.

The adhesive layer 122 is made of a viscous material and provides a high frictional force (R) with a high frictional coefficient (?), But a lateral load with a weak vertical load.

As described above, the removable pad 120 according to the present invention has a load bearing weight equal to the sum of the negative pressure by the vacuum and the viscous frictional force of the adhesive layer 122.

The friction force R due to the adhesive layer 122 is proportional to the difference in area between the attachment pad 10 and the attachment surface 10 due to the external load F in the area of the attachment / detachment pad 120 as shown in Equation (3).

The area where the detachable pad 120 is spaced from the mounting surface 10 by the external load F is determined by the external load F and the external pressure F is set such that the external load F is As the number increases, it increases correspondingly.

The external load F causes a certain spacing area between the attaching pad 120 and the attaching surface 10 and the spacing area? D2 is larger than the area? D1 by the sticking portion 140 of the attaching member 110.

Therefore, it is preferable that the area? D3 of the detachable pad 120 is larger than the area? D1 of the adhering portion 140 of the adherend 110. [

If the area dd3 of the attachment / detachment pad 120 is equal to the area dd1 of the attachment 110 of the attachment 110, the outside air is separated from the space between the attachment / detachment pad 120 and the attachment surface 10 The negative pressure? P between the attaching / detaching pad 120 and the attaching surface 10 is removed so that the attaching / detaching pad 120 is separated from the attaching surface 10.

On the other hand, if the area of the detachable pad 120 is too wide, the detachable pad 120 may be unnecessarily consumed.

Therefore, it is preferable that the area of the attaching / detaching pad 120 is 1.5 times larger or equal to 10 times smaller than or equal to the area of the attaching part 140 of the attachment 110, It is more preferable that the area of the adhesive portion 140 is two times larger or equal to that of the adhesive portion 140,

It is preferable that the distance from the upper end of the adhesive portion 140 of the attachment 110 to the upper end of the attachment / detachment pad 120 is at least 2 cm or more.

As described above, the detachable pad 120 according to the present invention is designed to prevent the detachment area A between the detachable pad 120 and the attachment surface 10 from being vented to the outside when an external load F is applied Most important.

For this purpose, the attachment surface 10 to which the attachment / detachment pad 120 is attached should be used on a smooth surface such as glass, mirror, tile, coated surface, The air is not introduced into the vacuum chamber.

8, when the film member 121 of the attaching / detaching pad 120 is too thick, the supporting region B does not hold the releasing region A outside, and a vacuum may not be formed.

Therefore, the thickness of the film member 121 and the adhesive coating layer 122 is important for the removable pad 120 according to the present invention.

The film member 121 of the detachable pad 120 has a predetermined bending resistance because it is a plastic film made of a polymer material. The bending resistance corresponds to the elastic modulus of the material itself and the thickness of the film member 121.

The external load F acts as a vertical load in the region of the attaching / detaching pad 120 corresponding to the adhering portion 140 of the adherend 110. The external load F is applied to the film member 121 connecting the releasing region A and the supporting region B, And as the bending resistance of the film member 121 is increased, the supporting region B acts as a rotation momentum, and the leaving region A is enlarged.

Therefore, it is preferable to set an appropriate thickness in order to reduce the bending resistance of the film member 121.

The thickness of the film member 121 is preferably 25 micrometers or more and 200 micrometers or less.

When the thickness of the film member 121 is larger than 200 micrometers, the bending resistance is increased and the film is easily separated from the adherend surface 10 by the external load F. When the film member 121 is smaller than 25 micrometers, It is difficult to adhere the part 110 to the adherend surface 10 and to deteriorate the merchantability of the adherend 110. Particularly when the load transferred by the adherend 110 is applied to the detachable pad 120 corresponding to the end of the adhering part 140 There is a problem that the film member 121 is torn.

The thickness of the film member 121 is more preferably 50 micrometers or more and 125 micrometers or less.

The thickness of the adhesive coating layer 122 is preferably 15 micrometers or more and 30 micrometers or less.

The higher the thickness of the adhesive coating layer 122, the more the adhesive / releasing pad 120 adheres to the adhesive surface 10 due to the sticky viscosity of the adhesive layer, It is preferable that the thickness is smaller than 30 micrometers since the production cost increases as the thickness of the metal layer 122 increases.

9 to 12 illustrate a wiping pad according to another embodiment for solving the problem described with reference to FIG. 8 and a detachable structure 100 'using the same.

The reinforcing member 125 is attached in a donut shape to the outer surface of the upper surface of the film member 121. The bending resistance of the film member 121 enlarges the leaving region A to extend to the outer periphery of the film member 121 So as to prevent the detachable pad 120 from falling off the mounting surface 10 as it is vented.

The reinforcement member 125 is formed so that the release area A of the film member 121 is enlarged to prevent the film member 121 from bending between the release area A and the support area B, And can be prevented from being vented.

For this purpose, the reinforcing member 125 may be made of polyethylene terephthalate (PET), polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), polyurethane (PU) Or a polymer film containing any one of them may be used.

In this embodiment, the same polyethylene terephthalate (PET) film as the film member 121 is used as an example.

The thickness of the reinforcing member 125 is preferably equal to or greater than the thickness of the film member 121.

Fig. 13 shows a detachable structure 100 "in which the attachment is attached with a toothbrush hanger according to an embodiment of the present invention. Although the detachable attachment pad 120 shown in Fig. 1 is shown in the drawing, (120 ') may be used.

The remainder is the same as the above-described embodiments, and a description thereof will be omitted.

100, 100 ', 100 ": detachable structure
110, 111: Attachment
120: detachable pad
121: Film member
122: Adhesive coating layer
125: reinforcing member
130: release member

Claims

A film member comprising one of polyethylene terephthalate (PET), polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), and polyurethane (PU);
An adhesive coating layer coated on the lower surface of the film member and comprising any one of silicone, urethane and soft PVC; And
And a releasing member formed on a lower surface of the adhesive coating layer.

The method according to claim 1,
Wherein the film member has a thickness of 25 micrometers or more and 200 micrometers or less.

The method according to claim 1,
Wherein the film member has a thickness of 50 micrometers or more and 125 micrometers or less.

The method according to claim 1,
Wherein the thickness of the adhesive coating layer is 15 micrometers or more and 30 micrometers or less.

The method according to claim 1,
Further comprising a reinforcing member formed in a donut shape on the outer surface of the upper surface of the film member.

6. The method of claim 5,
The reinforcing member may include one of polyethylene terephthalate (PET), polyethylene (PE), polyvinyl chloride (PVC), polypropylene (PP), and polyurethane And the detachable pad.

6. The method of claim 5,
Wherein the thickness of the reinforcing member is greater than or equal to the thickness of the film member.

8. The method according to any one of claims 1 to 7,
And an attachment attached to an upper surface of the film member.