JP2013107226A - Thin wall surface writing board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a thin wall surface writing board in which the occurrence of surface irregularities such as wrinkles, bulges, or projections caused by thermal expansion or thermal shrinkage due to variation in ambient temperature, is prevented.SOLUTION: This thin wall surface whiteboard 1 includes a board section 10, a frame section 20, and a frame cover section 30. Its back side is mounted on the wall surface 2 to be used as a wall, while its front surface is used also as a writing implement. The board section 10 has a trilaminar-structure constituted of a ground veneer 10a, a magnet sheet 10b and a whiteboard 10c. The frame section 20 is installed so as to cover the circumference of the board section 10, provided with a frame joint area 21 adhered to the wall surface 2 and a frame contact area 22 contacting surface of the whiteboard 10c. The whiteboard 10c is sandwiched between the magnet sheet 10b and the frame section 20, thereby it can avoid any occurrence of surface irregularities such as wrinkles, bulges or projections caused by thermal expansion or thermal shrinkage.

Description

  The present invention relates to a thin wall writing board, and more particularly to a thin wall white board and a thin wall blackboard.

  Conventionally, a thin wall writing board using a writing board having a function as a writing instrument such as a whiteboard or a blackboard has been applied to a wall for effective use of a dead space wall in a conference room or office room. Installed and used. Specific examples of the thin wall writing board include a thin wall white board and a thin wall blackboard. A conventional example of this thin wall white board will be described with reference to FIGS.

  As shown in FIG. 6, the conventional thin wall whiteboard has a board part 100, a frame part 200, a frame cover part 300, and a frame corner part 400, and is attached to the wall surface 2. The frame part 200 is attached so as to cover the outer periphery of the board part 100, and the board part 100 is covered with a frame cover part 300. The frame corner portion 400 is attached to a corner portion of the board portion 100 and has a shape having corners.

  As shown in FIG. 7, the board unit 100 includes a base veneer 100a, a magnet sheet 100b, and a white board 100c. The base veneer 100 a is a plate-like one formed of veneer and is attached to the wall surface 2. The magnet sheet 100b is a sheet formed of a magnetic material, and is attached to the base veneer 100a using a double-sided adhesive tape or the like. The whiteboard 100c is a whiteboard that is formed of a material containing iron powder and can be written with a whiteboard marker.

  The frame part 200 is provided with a frame edge part 210 that covers the edge part of the board part 100 and a frame adhesive part 220 that adheres to the whiteboard 100c. The frame bonding part 220 is provided with an opening 220a for screwing the screw 50 and a screw hole 220b.

  The screw 50 is a drill screw or the like that does not require a pilot hole, and is inserted into the opening 220a and screwed into the screw hole 220b. The screws 50 are screwed in the order of the white board 100c, the magnet sheet 100b, the base veneer 100a, and the wall surface 2. The screws 50 screwed in this way firmly fix the frame portion 200, the board portion 100, and the wall surface 2, that is, the frame bonding portion 220, the base veneer 100a, the magnet sheet 100b, the white board 100c, and the wall surface 2. become.

  Patent Document 1 discloses a technique related to a board mounting structure in which an outer peripheral edge of a board such as a white board is covered and the board is fixed to a wall surface. This attachment structure is composed of a base frame member attached to a wall surface and a cover frame member that is attached to the base frame member and covers the outer peripheral edge of the board and elastically presses. That is, in this base frame member, a pair of protrusions are provided along the longitudinal direction on the upper surface of the elongated bottom plate, and a locking claw is provided at the tip of the protrusion. On the other hand, the cover frame member is provided with a board holding piece portion that is pressed so as to cover the outer peripheral edge of the board on one side of the cover piece portion that is attached to the base frame member. An engagement claw formed so as to be engaged with a locking claw of the base frame member is provided inside the board holding piece.

  Patent Document 2 discloses a technique for joining four-sided frames with a wooden board in a hybrid board such as a large wall-mounted blackboard. That is, in joining the corners of the four-sided frame, the corners of the four-sided frame are joined via the corner joining member, not directly by a general wood joining method. The corners are joined at a right angle or a curved shape at a right angle portion of the joint.

JP 2000-203195 A JP 2009-297919 A

  However, in a conventional thin wall writing board, for example, a thin wall white board, as shown in FIG. 7, the screws 50 penetrating the frame portion 200 include the components of the board portion 100, the white board 100 c, the magnet sheet 100 b, and the base. The veneer 100a and the wall surface 2 are screwed in order.

  As described above, the conventional thin wall writing board has a configuration in which each layer of the board portion 100 is firmly fixed to the wall surface 2 at the outer peripheral edge using the screw 50, and changes in the external environment such as a change in temperature. When the expansion or contraction occurs due to the difference in expansion rate of each layer, the surface of the whiteboard 100c with the outer peripheral edge firmly fixed rises and wrinkles, bulges, protrusions, etc. are generated. there were. In addition, the corners of the frame are pointed and are bonded with double-sided tape, and the adhesive strength is weak, so that the drop due to natural fall or aging has occurred.

  As described above, the board attachment structure described in Patent Document 1 is a structure in which the base frame member attached to the wall surface and the cover frame member attached to the base frame member cover the outer peripheral edge of the board. This structure is such that the cover frame strongly presses the board, and is not a structure that can prevent the board from rising due to expansion and contraction due to temperature change of the board. Moreover, in the corner of the frame described in Patent Document 2, this corner member is configured to be fitted into the four-side frame, and the corner member is attached to the end portions of the two frame members that are attached in advance in the field installation work. At the same time, it takes time and labor to fit, and there is a possibility that the corner member that is not firmly fixed may come off.

  The present invention has been proposed to solve the above-described problems of the prior art. That is, the present invention provides a thin wall writing board capable of preventing the occurrence of wrinkles, bulges, protrusions, etc., which can be caused by expansion or contraction of the surface due to a temperature change of the outside air, and a frame corner portion. It is an object of the present invention to provide a thin wall writing board that is easy to attach and secures durability and safety.

  As a result of diligent research in view of the above-described problems, the present inventors have found that the frame portion is directly attached to the wall surface in the thin wall writing board, particularly in the thin wall white board and the thin wall blackboard. The idea was to solve the problem by adopting a simple structure.

  That is, in the first invention, in the thin wall writing board attached to the wall surface, the back surface is a board portion formed to be attached to the wall surface and the surface is written, and the first layer having the back surface A board, a second layer board laminated on the first layer board, and a third layer board laminated on the second layer board and having the surface, the first layer board, the second layer board, and A board part in which each of the third layer boards is formed with a predetermined thickness, a frame part that covers an outer peripheral surface of the board part, and a frame adhesive part that is bonded to the wall surface, and the third part A frame portion having a frame contact portion in contact with the surface of the layer board, the third layer board being in sliding contact with the contact surface of the second layer board, and the contact surface of the frame contact portion. Thin wall brush characterized by sliding contact It is to provide a use board.

  The present invention also includes the following aspects. In the second invention, the first layer board is a base veneer formed with a predetermined thickness of 4 mm and attached to the wall surface, and the second layer board has a predetermined thickness. Is a magnet sheet that includes a material having a magnetic property of 0.5 mm or 0.8 mm and is bonded to the base veneer with a double-sided adhesive tape, and the third-layer board has a predetermined thickness of 0. A white board formed of a material including a 4 mm magnetic material and attached to the magnet sheet by a magnetic force, the frame adhesion portion is adhered to the wall surface using a screw, and the frame contact portion is the white board The whiteboard, which is in contact with the surface of the board so as to be pressed, is in sliding contact with the contact surface of the magnet sheet and the contact surface of the frame contact portion. A thin wall writing board characterized by being slid with a contact surface of the magnet sheet and a contact surface of the frame contact portion by a thermal expansion force or a thermal contraction force according to thermal expansion or contraction due to the thermal expansion or contraction. Is. By configuring in this way, the thin wall writing board of the present invention can have a writing portion as a white board, and can be used as a so-called ultra-thin wall white board.

  In 3rd invention, the board for thin wall surface writing provided with the frame cover part formed so that the said frame adhesion part may be covered is provided. By configuring in this way, the thin wall writing board of the present invention can cover the frame part and improve safety, and the head of the screw screwed in the frame part can be externally connected. Can be prevented from being visually recognized, and aesthetics can be improved.

  According to a fourth aspect of the present invention, there is provided a frame corner portion provided at a corner of the board portion and having a curved outer periphery, and is bonded to the wall surface so as to cover the end portions of the two frame portions located at each corner. Provided is a thin wall writing board characterized by comprising a frame corner portion. By configuring in this way, the thin wall writing board of the present invention can be prevented from danger caused by collision with the user, etc., and it is possible to maintain and improve safety, durability, aesthetics Become.

  In a fifth aspect of the invention, the whiteboard is composed of one or more whiteboards, and when the whiteboard is composed of the plurality of whiteboards, the whiteboard is attached to each whiteboard. The present invention provides a thin wall writing board characterized in that a single unit is pasted at intervals of a preset value. With this configuration, the thin wall writing board of the present invention can use a plurality of single whiteboards having physical limits in size, and provides a thin wall writing board having a larger writing portion. In addition, each white board is pasted at intervals of a preset value, and deformation due to thermal expansion of each wide board can be prevented.

  In a sixth aspect of the present invention, the third layer board is a blackboard made of a material containing a magnetic material, and provides a thin wall writing board. With this configuration, the thin wall writing board of the present invention can be used as a so-called ultra-thin wall blackboard, with the writing portion being a blackboard.

  As described above, according to the thin wall writing board of the present invention, the third layer board of the board portion is in sliding contact with the second layer board without being directly fixed to the wall surface with screws or the like. The frame portion has a frame adhesion portion and a frame contact portion, the frame adhesion portion is adhered and fixed to the wall surface, and the frame contact portion is slidably contacted with the board portion, so that the region, temperature, humidity, etc. Generation | occurrence | production of the wrinkle, swelling, protrusion, etc. which arise from the swelling of the 3rd layer board which can occur because of expansion | swelling or shrinkage | contraction by a change can be prevented. Also, the frame corner portion is formed with a curved outer periphery, and is formed so as to be bonded to the wall surface while covering the end portions of the two frame portions from above, such as safety, durability, workability, etc. Can be improved.

It is a front view which shows the thin wall surface white board of embodiment. It is the sectional view on the AA line of FIG. 1 which shows the thin wall surface white board of embodiment. It is a side view which shows the frame part and frame cover part of embodiment. It is a perspective view which shows the frame part and frame cover part of embodiment. It is the front view and side view which show the frame corner part of embodiment. It is a front view which shows the conventional thin wall surface white board. It is the BB sectional view taken on the line of FIG. 6 which shows the conventional thin wall surface white board.

  Hereinafter, the best mode for carrying out the thin wall writing board of the present invention will be described in detail with reference to the accompanying drawings. 1 to 5 are diagrams illustrating embodiments of the present invention. In these drawings, the same reference numerals denote the same components, and the basic configuration and operation are the same. To do. In addition, description is abbreviate | omitted about the structure which is common in the conventional thin wall surface writing board.

  As shown in FIG. 1, the thin wall whiteboard 1 as the thin wall writing board of the present embodiment has a board part 10, a frame part 20, a frame cover part 30, and a frame corner part 40, and the back surface is While being attached to the wall surface 2 and having a use as a wall, the surface is also used as a writing instrument.

  The board portion 10 has a back surface attached to the wall surface 2 and a front surface used as a writing instrument. As shown in FIG. 2, the board unit 10 has a three-layer structure, a base veneer 10a as a first layer board, a magnet sheet 10b as a second layer board, and a white board 10c as a third layer board. It is composed of

  The base veneer 10a is a plate-like one formed by a veneer having a thickness of 4 mm as a preset thickness, and is attached to be fixed to the wall surface 2 using a nail or a screw. At this time, the base veneer 10a is attached to the wall surface 2 so as to have smoothness so as not to be uneven, and is attached to an accurate position of the wall surface 2 using, for example, a laser level.

  The magnet sheet 10b is a sheet formed of a material containing magnetism having a thickness of 0.5 mm or 0.8 mm as a preset thickness, and is attached to the base veneer 100a using a double-sided adhesive tape. Also at this time, the magnet sheet 10b is attached to the wall surface 2 so as to have smoothness so as not to be uneven as in the attachment of the base veneer 10a.

  The whiteboard 10c is formed of a material containing iron powder having a thickness of 0.4 mm as a preset thickness, and has a surface written with a whiteboard marker. The whiteboard 10c contains iron powder as described above, and is attracted and pasted by the magnetic force of the magnet sheet 10b. Such affixing is called MC (Maintenance Clean) method and is a method with consideration for the environment. In addition, the thickness of each layer in the above-mentioned board part 10 is an example, and is not limited to these values. For example, these thicknesses may be optimal values depending on the usage environment of the thin wall whiteboard 1 and the like. .

  The frame part 20 is formed of aluminum or the like, and is attached so as to cover the outer periphery of the board part 10. As shown in FIG. 2, the frame portion 20 includes a frame adhesive portion 21 provided so as to adhere to the wall surface 2 and a frame contact portion 22 provided so as to contact the surface of the whiteboard 10 c.

  The frame bonding portion 21 is provided with an opening portion 21a for inserting a screw 50 and a screw hole portion 21b into which the screw 50 is screwed. That is, the frame bonding portion 21 is bonded to the wall surface 2 by screwing the screw 50 into the wall surface 2 through the screw hole portion 21b. In conjunction with this adhesion, the frame contact portion 22 is brought into contact with the whiteboard 10c so as to be pressed.

  As shown in FIG. 3, the frame cover part 30 is formed so as to cover the frame part 20, and is fitted into the frame part 20. FIG. 4 shows a state in which the frame cover portion 30 is fitted into the frame portion 20. Thus, the frame cover part 30 is formed so as to cover the opening 21a so that the state in which the screw 50 is screwed into the screw hole part 21b cannot be visually recognized from the outside.

  The frame corner portion 40 is provided at a corner of the board portion 10 and is formed of resin or the like so that the outer periphery is curved. The frame corner portion 40 is provided so as to cover the frame portion 20 and the frame cover portion 30 provided on each side of the board portion 10. As shown in the front view shown in FIG. 5 (A) and the side view shown in FIG. 5 (B), the frame corner portion 40 has an opening 40a and a screw hole portion 40b provided at the bottom of the opening 40a. Have. The frame corner portion 40 is formed such that a screw 50 is inserted from the opening 40 a, is screwed into the wall surface 2 through the screw hole portion 40 b, and is bonded to the wall surface 2. Moreover, as shown in FIG. 1, the cover 41 covers the opening 40a, so that the screw 50 screwed into the screw hole 40b is not visible from the outside.

  The thin wall surface whiteboard 1 of the present embodiment having the above-described configuration has the following operational effects. In the conventional thin wall whiteboard, for example, when thermal expansion or contraction occurs due to a change in the temperature of the outside air, the contact surface is swelled due to the difference between the thermal expansion coefficient or thermal contraction rate of each layer, and the surface swells. Occurs. However, in the thin wall whiteboard 1 of the present embodiment, even if expansion or contraction occurs in the whiteboard 10c, there is no stagnation of the contact surface, no surface swell occurs, and the performance, aesthetics, etc. are normal. Can be maintained and used as.

  That is, the contact surface of the whiteboard 10c that is in sliding contact with the magnet sheet 10b is maintained in contact with the magnetic force of the magnet sheet 10b. In this maintained state, a thermal expansion force or thermal contraction force due to thermal expansion or thermal contraction is generated on the whiteboard 10c due to a change in the temperature of the outside air. The whiteboard 10c is slid with the magnet sheet 10b by this thermal expansion force or thermal contraction force. Note that sliding contact means contact in a rubbing state, and sliding refers to movement so as to scrape in contact.

  Further, the contact surface of the whiteboard 10c that is in sliding contact with the frame contact portion 22 is in a contact state due to the pressing of the frame contact portion 22 that is interlocked with the frame bonding portion 21 being bonded to the wall surface 2 using the screws 50. Is maintained. In this maintained state, a thermal expansion force or thermal contraction force due to thermal expansion or thermal contraction is generated on the whiteboard 10c due to a change in the temperature of the outside air. The whiteboard 10c is slid with the frame part 20 by this thermal expansion force or thermal contraction force.

  As described above, the thin wall whiteboard 1 has the whiteboard 10c in spite of the configuration in which the whiteboard 10c is sandwiched between the magnet sheet 10b and the frame portion 20 even when the temperature of the outside air changes. By being in sliding contact with these, wrinkles, bulges, protrusions, and the like caused by differences in the thermal expansion coefficients of the respective components can be prevented.

  In addition, in this embodiment, although it is the structure corresponding to the change of the whiteboard 10c by the thermal expansion or thermal contraction by the temperature change of external air, this structure is the expansion | swelling and contraction by secular change in the thin walled whiteboard 1, for example. Even in the case of occurrence of wrinkles, generation of wrinkles, bulges, protrusions and the like due to the expansion and contraction can be prevented.

  Further, the frame corner portion 40 is formed so that the outer periphery is curved, so that the position of the end portion of the frame portion 20 located at the four corners is not adjusted, and the dimensions of the frame material 20 are not highly accurate. The screw 50 is screwed into the wall surface 2 from the screw hole portion 40b and is adhered to the wall surface 2 while covering from above the frame member 20 installed by construction. The thin wall surface whiteboard 1 of the present embodiment has the frame corner portion 40 having such a configuration, so that the frame corner portion 40 can be easily and easily attached, and can be prevented from danger caused by a collision with a user. It is possible to maintain and improve safety, durability and aesthetics.

  As mentioned above, although this invention was shown and demonstrated concrete embodiment, this invention is not limited to these. A person skilled in the art can add various changes and improvements to the configurations and functions in the above-described embodiments without departing from the scope of the present invention. For example, the following other embodiments are also included.

  In the above-described embodiment, the specific aspect of the thin wall whiteboard has been described, but the present invention is not limited to this. For example, a thin wall whiteboard may be used as a thin wall blackboard.

  The whiteboard 10c is configured to include iron powder, but is not limited thereto. For example, the whiteboard 10c only needs to contain a magnetic material.

  In the above-described embodiment, the whiteboard is a single whiteboard, but is not limited thereto. For example, the white board alone may be configured to use two or more. In this case, a thin wall whiteboard or a thin wall blackboard having a larger area can be provided on the wall. Further, in this case, the whiteboard unit and the adjacent whiteboard unit may be bonded to the magnet sheet so that, for example, an interval of 0.5 mm is generated. By doing in this way, the influence on the adjacent whiteboard single-piece | unit by thermal expansion etc. is reduced.

  In the above-described embodiment, the base veneer is attached to the wall surface 2 using nails and screws, but is not limited thereto. For example, a board portion in which a base veneer, a magnet sheet, and a white board are laminated may be attached to a wall using an adhesive.

  In the above-described embodiment, the base veneer and the magnet sheet are bonded using the double-sided adhesive tape, but the present invention is not limited to this. For example, the base veneer and the magnet sheet may be bonded using an adhesive.

  In the above-described embodiment, the drill screw is used for fixing the frame portion, but the present invention is not limited to this. For example, a normal screw may be used by providing a pilot hole.

  The frame corner portion is fixed to the wall surface using screws, but is not limited thereto. For example, the frame corner portion may be configured to be fitted into the frame portion.

  The thin wall writing board of the present invention can be provided on the wall of classrooms, conference rooms, offices, etc. in the education industry, general companies, etc., and can be used widely as a writing instrument along with its use as a wall. It is.

DESCRIPTION OF SYMBOLS 1 ... Thin wall surface white board 2 ... Wall surface 10 ... Board part 10a ... Base veneer 10b ... Magnet sheet 10c ... White board 20 ... Frame part 21 ... Frame adhesion part 21a ... Opening part 21b ... Screw hole part 22 ... Frame contact part 30 ... Frame cover 40 ... Frame corner 40a ... Opening 40b ... Screw hole 41 ... Lid 50 ... Screw 100 ... Board 100a ... Base veneer 100b ... Magnetic sheet 100c ... White board 200 ... Frame 210 ... Frame edge 220 ... Frame bonding part 220a ... Opening part 220b ... Screw hole part 300 ... Frame cover part 400 ... Frame corner part

Claims (6)

In the thin wall writing board attached to the wall,
A board portion formed such that a back surface is attached to the wall surface and a front surface is written, a first layer board having the back surface, a second layer board laminated on the first layer board, and A board composed of a third layer board laminated on the second layer board and having the surface, wherein each of the first layer board, the second layer board, and the third layer board is formed with a predetermined thickness. And
A frame portion covering the outer peripheral surface of the board portion, the frame portion having a frame bonding portion bonded to the wall surface, and a frame contact portion contacting the surface of the third layer board;
The thin wall writing board according to claim 3, wherein the third layer board is slidably contacted with a contact surface of the second layer board and slidably contacted with a contact surface of the frame contact portion. The first layer board is a base veneer formed with a predetermined thickness of 4 mm and attached to the wall surface;
The second layer board is a magnet sheet that is formed including a material having a magnetic property of a predetermined thickness of 0.5 mm or 0.8 mm, and is bonded to the base veneer with a double-sided adhesive tape,
The third layer board is a white board that is formed of a material including a magnetic body having a predetermined thickness of 0.4 mm, and is affixed to the magnet sheet with a magnetic force,
The frame adhering portion is adhered to the wall surface using a screw, and the frame contact portion is contacted so as to be pressed against the surface of the whiteboard,
The whiteboard that is in sliding contact with the contact surface of the magnet sheet and the contact surface of the frame contact portion has a thermal expansion force or a thermal contraction force according to a thermal expansion or a thermal contraction due to a temperature change of outside air. The thin wall writing board according to claim 1, wherein the board is slid on the contact surface of the frame and the contact surface of the frame contact portion.   The thin wall surface writing board according to claim 1, further comprising a frame cover portion formed so as to cover the frame bonding portion.   A frame corner portion provided at a corner of the board portion and having a curved outer periphery, the frame corner portion covering the ends of the two frame portions located at each corner and bonded to the wall surface. The thin wall writing board according to claim 1, wherein the board is a thin wall writing board.   The white board is composed of one or a plurality of white boards, and when the white board is composed of the plurality of white boards, the pasting to the magnet sheet is preset for each white board. The thin wall writing board according to claim 2, wherein the board is pasted at intervals of different values.   2. The thin wall writing board according to claim 1, wherein the third layer board is a blackboard formed of a material containing a magnetic material.