JP6374223B2 - Protective member - Google Patents

Description

  The present invention mainly relates to a technique for protecting a panel or the like of an electronic device.

  Conventionally, a protective sheet has been attached to the panel surface or display surface in order to prevent the panel or display provided in the electronic device from being scratched or soiled. Such a protective sheet has a base material and an adhesive layer in which an adhesive is applied on the base material, and this adhesive layer is adhered to the surface of a panel or the like to be protected. Further, the protective sheet before use has a separator attached to the adhesive layer, and in use, the separator was peeled off to expose the adhesive layer. In addition, there exists patent document 1 as a technique relevant to this invention, for example.

JP 2004-117790 A

  However, when sticking a protective sheet on the surface of a panel, etc., if it is not handled carefully, air bubbles may enter between the surface of the panel and the protective sheet or wrinkles may occur. May be significantly worse. In particular, when bubbles or wrinkles are generated in a display or the like having a display function, not only the appearance is deteriorated but also problems such as invisible display contents occur.

  This invention is made | formed in view of the said subject, and it aims at providing the technique which reduces the deterioration of the appearance after sticking a protective sheet.

In order to solve the above-mentioned problems, the invention of claim 1 is a protective member, which is a protective sheet having a base material layer and an adhesive layer provided on the base material layer, and is adhered to the adhesive layer. A release sheet that is peeled off when in use, and the release sheet forms the one corner at a notch of a shape corresponding to a predetermined portion of the member to be protected and at least one of four corners. And a cut formed by connecting two sides to form a triangle .

According to a second aspect of the present invention, in the protective member according to the first aspect, the shape of the cut corresponding to the predetermined portion of the member to be protected is the same as the shape of the predetermined portion of the member to be protected. is there.

The invention according to claim 3 is the protective member according to claim 1 or 2, wherein the member to be protected is an electronic device having a display portion, and a shape of a cut corresponding to a predetermined portion of the member to be protected. Is a shape similar to the shape of the display section.

According to a fourth aspect of the present invention, in the protective member according to any one of the first to third aspects, the notch having a shape corresponding to a predetermined portion of the member to be protected is rectangular in a substantially central portion of the release sheet. It is provided in the shape.

The invention according to claim 5 is the protective member according to any one of claims 1 to 4, wherein the predetermined portion of the member to be protected of the release sheet even after the release sheet is peeled from the protective sheet. The portion surrounded by the notch of the shape corresponding to and the triangular portion remains in a state of being stuck to the adhesive layer.
A sixth aspect of the present invention is a protected member for a vehicle electronic device to which the protective member according to any one of the first to fifth aspects is attached.

According to the first to sixth aspects of the present invention, since the release sheet is provided with a notch having a shape corresponding to a predetermined portion of the member to be protected, even when the release sheet is peeled off from the protection sheet during use, A release sheet having a shape corresponding to a predetermined portion of the protective member remains on the protective sheet side. For this reason, even if it is a case where a protection member is affixed on a to-be-protected member, a bubble and a wrinkle do not arise in the remaining part of a peeling sheet, but it can prevent that an appearance deteriorates.

  In particular, according to the invention of claim 2, since the shape of the notch is the same as the shape of the predetermined portion of the member to be protected, it is possible to prevent air bubbles and wrinkles from occurring in particular portions of the member to be protected. be able to.

  In particular, according to the invention of claim 3, since the shape of the notch is the same as the shape of the display portion, it is possible to prevent bubbles and wrinkles from occurring in the display portion. As a result, it is possible to prevent the appearance from deteriorating and to prevent the display contents from being invisible.

  In particular, according to the invention of claim 4, since the central portion of the release sheet can be left in a rectangular shape, it is possible to prevent bubbles and wrinkles from occurring in the central portion, and to prevent the appearance from deteriorating. it can.

  In particular, according to the invention of claim 5, since the portion surrounded by the cut of the release sheet remains in a state of being stuck to the adhesive layer, it is possible to prevent the occurrence of bubbles and wrinkles in the portion and the appearance is poor. Can be prevented.

FIG. 1 is a diagram illustrating an outline of a usage state of a protection member. FIG. 2 is a diagram showing a schematic configuration of the front panel. FIG. 3 is a diagram showing a schematic configuration of the front panel. FIG. 4 is a diagram illustrating a schematic configuration of the protection member. FIG. 5 is a cross-sectional view of the protective member. Fig.6 (a) is a figure which shows schematic structure of a protection sheet, FIG.6 (b) is a figure which shows schematic structure of a peeling sheet. FIG. 7 is a diagram illustrating a schematic configuration of the protection member. FIG. 8 is a diagram showing a configuration for peeling the release sheet from the protective sheet. FIG. 9 is a cross-sectional view of the protective member. FIGS. 10A to 10C are diagrams showing a process of attaching the protective member to the front panel.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<1. Embodiment>
FIG. 1 is a diagram illustrating an example of a state in which the protective member of the present embodiment is used. As shown in FIG. 1, the display apparatus 1 is provided in the approximate center part of the instrument panel of a vehicle. And in this Embodiment, the protection member is affixed on the surface of the front panel 2 of this display apparatus 1. FIG. Protective members are of the type to be attached by the manufacturer to prevent scratches and dirt in the manufacturing process and delivery process until the vehicle reaches the user's hand, or after use by the user after purchasing the vehicle In order to prevent scratches and dirt, it includes a type that the user sticks. This will be specifically described below.

  First, the structure of the front panel 2 which adheres a protection member is demonstrated. 2 and 3 are diagrams showing a schematic configuration of the front portion of the front panel 2. FIG. 2 is a front view, and FIG. 3 is a perspective view. The front panel 2 is a panel attached to the front surface of the display device 1, and also constitutes a part of the instrument panel. As the display device 1 in the present embodiment, for example, an electronic device having a display function and an audio output function such as a car navigation device can be used.

  As shown in FIGS. 2 and 3, the front panel 2 includes a window portion 10, an operation portion 11, and an opening portion 12. The window part 10 is a transparent part constituting a part of the front panel 2 and has a shape corresponding to the display of the display device 1. Further, the window 10 is provided at a position corresponding to the display of the display device 1. That is, in a state where the front panel 2 is attached to the display device 1, the user can visually recognize the video displayed on the display through the window portion 10.

  The operation unit 11 includes a plurality of rotary knobs 11a for adjusting the volume, mechanical (physical) buttons 11b, electrostatic (touch) buttons 11c, and the like. Each of these operation units 11 is mechanically or electrically connected to the display device 1, and when the user operates it, the operation content is transmitted to the display device.

  The opening 12 is an opening for inserting and removing a disc such as a CD or a DVD. The opening 12 is also provided at a position corresponding to the insertion / removal opening provided in the display device.

  The front panel 2 of the present embodiment has a structure in which the rotary knob 11a and the mechanical button 11b protrude, but other surface portions including the window portion 10 and the electrostatic button 11c. Are configured in the same plane. Further, the surface of the front panel 2 has a curved shape rather than a perfect plane. Specifically, as shown in FIG. 3, the front panel 2 has a curved structure that is curved in a convex shape in the vertical direction and curved in a convex shape in the horizontal direction.

  In order to prevent the front panel 2 from being scratched or dirty, a protective member is attached to the front panel 2 in the present embodiment. Therefore, the protection member will be described below. 4-7 is a figure which shows the outline of a protection member.

  FIG. 4 is a diagram illustrating a schematic configuration of the protection member 20 in an unused state (a state before being attached to the front panel 2). FIG. 5 is a cross-sectional view taken along the line A-A ′ of the protection member 20 shown in FIG. 4. As shown in FIG. 5, the protective member 20 has a configuration in which a protective sheet 21 and a release sheet 22 are attached.

  The protective sheet 21 is a sheet that protects the front panel 2 from scratches and dirt, and mainly includes a base material layer 21a and an adhesive layer 21b. The base material layer 21a is a layer exposed to the outside in a state where the protective member 20 is adhered to the front panel 2. That is, the base material layer 21a can be said to be a layer that actually protects from scratches and dirt. Moreover, the adhesion layer 21b is a layer which consists of an adhesive apply | coated on the base material layer 21a. That is, it is a layer attached to the front panel 2.

  The base material layer 21a is created using a transparent resin. This is because in the state where the protective member 20 is adhered to the front panel 2, not only is it protected from scratches and dirt, but the window portion 10 and the operation portion 11 of the front panel 2 must be visible. The resin used for the base material layer 21a is preferably a resin having strength, transparency, flexibility and the like that can be protected from scratches and dirt. As such a resin, for example, a silicon resin, an olefin resin, a PET (polyethylene terephthalate) resin, or the like can be used.

  The adhesive layer 21b is formed by applying a transparent adhesive. The pressure-sensitive adhesive used for the pressure-sensitive adhesive layer 21b has high adhesiveness when the protective sheet 21 and the release sheet 22 are attached, while the pressure-sensitive adhesive can be easily removed when the release sheet 22 is peeled off. It is preferable that it is an agent. As such an adhesive, for example, an acrylic adhesive or a silicone adhesive can be used.

  The release sheet 22 is a sheet that is adhered to the adhesive layer 21b of the protective sheet 21 when the protective member 20 is not used, and is peeled off when used. If the adhesive layer 21b is exposed when the protective member 20 is not used, the adhesive strength is reduced. To prevent this, the release sheet 22 is attached to the protective sheet 21 in an unused state. .

  Moreover, in this Embodiment, the notch 22a is provided in the peeling sheet 22. FIG. Thereby, even after peeling off the release sheet 22 from the protective sheet 21, the release sheet 22 cut off by the cut 22a remains in a state of being adhered to the adhesive layer 21b. That is, the protection member 20 is used in a state where a part of the release sheet 22 is adhered to the protection sheet 21. Details of the use state of the cut 22a and the protection member 20 will be described later.

  The release sheet 22 is also made using a transparent resin. Since the release sheet 22 is used in a state where a part thereof is adhered to the protective sheet 21 side, the resin used for the release sheet 22 has transparency and flexibility in the same manner as the base material layer 21a. It is preferable. However, since most parts are not peeled off and used, the strength of the base material layer 21a is not necessary. As such a resin, for example, an alkyl resin or a silicon resin can be used.

  FIG. 6A is a front view of the protective sheet 21, and FIG. 6B is a front view of the release sheet 22. As shown in FIG. 6A, the protective sheet 21 is attached to the front panel 2, and therefore the outer shape thereof is the same as the outer shape of the front panel 2. The protective sheet 21 has an opening 23 in a portion corresponding to the operation unit 11 and the opening 12 provided on the front panel 2. In other words, there is a hole.

  Specifically, the protective sheet 21 is provided with an opening 23 having a shape similar to the shape of the knob 11a and the button 11b in a portion corresponding to the rotary knob 11a and the mechanical button 11b. This is because the protective member 20 is attached to the surface of the front panel 2, but in order to use the knob 11a and the button 11b of the front panel 2, it is necessary to expose them from the protective sheet 21. .

  Further, the protective sheet 21 is provided with an opening 23 having a similar shape at a portion corresponding to the opening 12 of the front panel 2. This is also for enabling the opening 12 of the front panel 2 to be used. On the other hand, the protective sheet 21 is not provided with an opening in a portion corresponding to the electrostatic button 11c of the front panel 2. This is because the electrostatic button 11 c can be operated from above the protective sheet 21.

  Further, as shown in FIG. 6B, the release sheet 22 has the same outer shape as that of the front panel 2. However, the outer shape of the release sheet 22 is not limited to this. The release sheet 22 only needs to be attached to the protective sheet 21 when not in use, and may have a shape that can cover at least the entire surface of the protective sheet 21. Further, the release sheet 22 does not have an opening in a portion corresponding to the operation unit 11 and the opening 12. That is, the release sheet 22 is not perforated. This is because portions corresponding to the operation unit 11 and the opening 12 are peeled off during use and are not used.

  Further, the release sheet 22 is provided with a cut 22a. Specifically, the release sheet 22 is provided with a notch 22 a having the same shape as that of the window portion 10 at a portion corresponding to the window portion 10 of the front panel 2. In the present embodiment, since the window portion 10 is rectangular, the cut 22a of the release sheet 22 is also rectangular. Thereby, when the peeling sheet 22 is peeled from the protective sheet 21, the cut 22a part is cut and a rectangular part (hereinafter referred to as "rectangular part") remains on the protective sheet 21 side while sticking to the adhesive layer 21b. It becomes like this.

  As described above, the release sheet 22 is provided with a cut 22a having a shape corresponding to a predetermined portion of the front panel 2 which is a member to be protected. That is, as described above, the release sheet 22 is provided with a cut 22a having a shape corresponding to the window portion 10 of the front panel 2, and the window portion 10 corresponds to the display of the display device 1. Therefore, it can be said that the notch 22a having a shape corresponding to the display of the display device 1 is provided.

  The release sheet 22 is also provided with cuts 22a at its corners. The corner provided with the cut 22 a is any one of the four corners of the release sheet 22. The corner notch 22a is provided so as to connect two sides constituting the corner and to form a triangle with the two sides including the corner and the notch 22a. Thus, when the release sheet 22 is peeled from the protective sheet 21, the cut 22a portion is cut and the triangular portion (hereinafter referred to as “triangular portion”) is attached to the adhesive layer 21b while facing the protective sheet 21 side. It will remain.

  Then, as shown in FIG. 7, the protective sheet 21 and the release sheet 22 are overlapped and attached while being positioned, thereby creating the unused protective member 20 with a cut as shown in FIG. 4. Can do.

  In the above description, the method of creating the protective member 20 by putting the cut 22a in the release sheet 22 in advance and attaching the release sheet 22 and the protective sheet 21 is not limited to this. . For example, after sticking a release sheet without a cut to the protective sheet, a cut of a shape corresponding to a predetermined portion of the member to be protected may be made using a technique such as so-called half cut.

  Next, the content (use state) which adheres the protection member 20 to the front panel 2 is demonstrated. FIG. 8 is a diagram illustrating a state where the release sheet 22 is peeled from the protective sheet 21. FIG. 9 is a cross-sectional view taken along line B-B ′ in FIG. 8.

  As shown in FIG. 8 and FIG. 9, in the process of peeling the release sheet 22 attached to the protective sheet 21, the central portion of the release sheet 22 and the cuts 22 a provided at the corners are cut off, and the rectangular portion 22 b. And the triangular portion 22c remain adhered to the protective sheet 21 side. That is, the central portion and one corner of the protective sheet 21 have a structure in which the protective sheet 21 and the release sheet 22 are laminated even after the release sheet 22 is peeled off. On the other hand, in other parts, the release sheet 22 is peeled off and the adhesive layer 21b is exposed.

  And the protection sheet 21 (protection member 20) which exposed the adhesion layer 21b in this way leaving the peeling sheet 22 in part is bonded together on the surface of the front panel 2. FIG. FIG. 10 is a view showing a process of attaching such a protective member 20 to the front panel 2, and is a cross-sectional view seen from the same position as FIG.

  As shown in FIG. 10A, the surface of the protective member 20 on the side of the release sheet 22 (surface on the side of the adhesive layer 21 b) is approached toward the front panel 2. And as shown in FIG.10 (b), the protection member 20 is attached so that the position of the rectangular part 22b of the peeling sheet 22 with the protective sheet 21 stuck and the window part 10 of the front panel 2 may match. The surface of the front panel 2 is brought into contact. In other words, the rectangular portion 22b of the release sheet 22 and the display 3 of the display device 1 are brought into contact with each other so as to be aligned. In this case, only the release sheet 22 left on the protective sheet 21 is in contact with the front panel 2, and the adhesive layer 21b is not in contact. Since the adhesive is not applied to the surface of the release sheet 22, the protective sheet 21 is not adhered to the front panel 2 at this time.

  Then, as shown in FIG. 10C, the protective sheet 21 that is not in contact with the front panel 2 is brought into contact with the front panel 2. Thereby, the adhesion layer 21b contacts the front panel 2, and the protection sheet 21 is stuck. That is, the rectangular portion 22 b and the triangular portion 22 c are not attached to the front panel 2, and other portions are attached to the front panel 2.

  In this way, by leaving the central portion of the release sheet 22 in the same shape as that of the window portion 10 (display 3), the rectangular portion 22b and the position of the window portion 10 may be bonded together so as to be bonded together. And positioning at the time of sticking protection sheet 21 becomes easy. In particular, since the rectangular portion 22b is not attached to the front panel 2, the rectangular portion 22b can be aligned while being moved on the front panel 2 (especially on the window portion 10), thereby facilitating positioning. be able to.

  Further, as described above, the front panel 2 of the present embodiment has a configuration in which the surface thereof is curved instead of a perfect plane. For this reason, when the flat protective sheet 21 is stuck to the front panel 2 as it is, the shape of the curved front panel 2 and the shape of the flat protective sheet 21 do not match, and the protective sheet 21 floats, Wrinkles are more likely to occur.

  However, in the present embodiment, even when the protective member 20 is attached to the front panel 2, the rectangular portion 22b where the release sheet 22 is left has a configuration in which bubbles and wrinkles are not easily generated. This is because air bubbles and wrinkles are caused by unevenness caused by the proximity or continuation of the part to be adhered and the part not to be adhered, and thus mainly occur in the part adhered by the adhesive. On the other hand, since the adhesive is not applied to the release sheet 22 of the present embodiment, the rectangular portion 22b is not adhered to the front panel 2, and unevenness due to the above-described adhesion is not possible. It is.

  That is, in this embodiment, since the notch 22a having the same shape as the window portion 10 of the front panel 2 that is a member to be protected (that is, the same shape as the display 3) is provided and the release sheet 22 is left, Even if the panel 2 has a curved surface shape, it is possible to prevent bubbles and wrinkles from occurring in a portion corresponding to the display 3. As a result, the appearance can be prevented from being deteriorated, and the display contents can be prevented from being invisible.

  Further, as described above, cuts 22a are also made in the corners of the release sheet 22 to leave the triangular portions 22c. As a result, the triangular portion 22 c is also not attached to the front panel 2. For this reason, when the user peels off the protective member 20 attached to the front panel 2, the protective member 20 can be easily removed by removing the protective member 20 from the triangular portion 22c that is not attached.

<2. Modification>
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible. Below, such a modification is demonstrated. All the forms including the above-described embodiment and the form described below can be appropriately combined.

  In the said embodiment, although the protective sheet and the peeling sheet were demonstrated, in this invention, any of a sheet-like thing and a film-like thing, such as a protective film and a peeling film, are applicable.

  Moreover, although the said embodiment demonstrated the structure stuck with the peeling sheet and the front panel using the adhesive apply | coated to the protective sheet, it is not limited to this. Other methods may be used as long as the protective sheet can be attached and can be easily peeled off. For example, the protective member may be attached by adsorption due to static electricity or the like.

  Moreover, although the said embodiment demonstrated the structure which cuts the shape similar to the window part (display) of a front panel in the center part of a peeling sheet, it is not limited to this. For example, in consideration of the curved shape of the front panel, for example, a trapezoidal shape may be cut so as to have the same shape as the window (display) after being attached.

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Front panel 3 Display 10 Window part 11 Operation part 12 Opening part 20 Protection member 21 Protection sheet 21a Base material layer 21b Adhesive layer 22 Release sheet 22a Notch

Claims (6)

A protective member,
A protective sheet having a base material layer and an adhesive layer provided on the base material layer;
A release sheet that is adhered to the adhesive layer and peeled off during use;
The release sheet has a cut in a shape corresponding to a predetermined portion of the member to be protected , and a cut formed by connecting two sides constituting the one corner to form a triangle at at least one of four corners. A protective member characterized by having. The protective member according to claim 1,
The shape of the notch of the shape corresponding to the predetermined part of the member to be protected is the same shape as the shape of the predetermined part of the member to be protected. In the protective member according to claim 1 or 2,
The protection member is an electronic device having a display portion, and the shape of the cut corresponding to the predetermined portion of the protection member is the same shape as the shape of the display portion. The protective member according to any one of claims 1 to 3,
The protective member is characterized in that a cut in a shape corresponding to a predetermined portion of the member to be protected is provided in a rectangular shape at a substantially central portion of the release sheet. The protective member according to any one of claims 1 to 4,
Even after the release sheet is peeled off from the protective sheet, the part surrounded by the cut in the shape corresponding to the predetermined part of the protected member of the release sheet and the triangular part are adhered to the adhesive layer. A protective member characterized by remaining in a state where it is applied.   A member to be protected for an electronic device for a vehicle, to which the protective member according to any one of claims 1 to 5 is attached.

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