JP5219891B2 - Bulletin board, magnetic frame for magnetic mounting of bulletin board, and attachment method of magnetic frame to bulletin board - Google Patents

Description

  The present invention relates to an improvement of a board body such as a bulletin board on which various display items such as a schedule, a target, a mathematical expression, and a graphic can be arbitrarily entered and posted.

Conventionally, there are many kinds of simple boards that can be filled in with various materials such as steel, plastic, plywood, etc., and the outer periphery is covered with plastic frames, rubber frames, aluminum frames, etc. When a magnet is detachably attached to a steel plate, blackboard, etc. made of metal, the magnet is usually fixed to the back surface of the board with an adhesive or the like.
Japanese Patent Application No. 11-291980

  However, fixing the magnet to this type of board with an adhesive or the like not only takes time and effort, but also unnecessarily increases the thickness. In addition, in order to securely adhere to steel or blackboard without falling, it is necessary to attach and fix a large number of magnets on the back of the board, and of course the back on which the magnet exists is used as a display surface or display surface. It was impossible to do so, and it was necessary to use only the entire surface. When the surface was full, it was erased and rewritten.

  In the present invention, unlike a conventional board in which a magnet is bonded and fixed to the back side of the board, both sides of the board, that is, the front side and the back side can be magnetized freely, and the writing surface and display side are sufficiently secured on both sides without any trouble. As in the past, it is difficult and time-consuming to attach and fix a magnet to the backside of the board, and the unnecessary thickness is increased, and sufficient magnetizing force cannot be secured and the magnet falls. The first object is to provide a bulletin board that is extremely functional and excellent in entry efficiency and display efficiency.

A second object of the present invention, the magnet frame for notice boards four corners of the board and orderly magnet frame to the entire circumference of the board peripheral portion They become minutes bend, can be quickly and easily attached form Is to provide an installation method.

In order to achieve the above object, the bulletin board according to the present invention has a frame that covers both sides of the outer periphery of the board formed of magnets over the entire periphery of the board, and both sides of the magnet frame can be magnetically attached to the magnetic material. And forming the four corners of the magnet frame in a curved shape and heating, stretching and cooling the curved portion to a plastically deformable temperature so that the magnetized surface of the magnet frame becomes a flat surface. The frame is fixed to the outer periphery of the board .

  The magnet frame is characterized by being multipolarly magnetized on the front and back surfaces.

  In addition, the magnet frame has a substantially U-shaped board storage portion for storing the outer periphery of the board.

  Further, the board storage surface of the board storage portion and the outer peripheral surface of the posting board are bonded with an adhesive.

  Further, the board storage surface of the board storage part is formed with an adhesive reservoir groove for fixing and bonding the board.

  Further, the board storage surface of the board storage unit and the outer peripheral surface of the posting board are bonded with a double-sided adhesive tape.

In order to achieve the above-mentioned object, the posted board magnetic mounting magnet frame of the present invention is formed by forming a multi-pole magnetized magnet into a frame shape so as to cover the entire outer periphery of the board, and on the inner periphery of the magnet frame. An approximately U-shaped board storage portion is formed , and a pair of adhesive reservoir grooves for fixing the board is provided at least in the back corner of the board storage portion .

Further, in addition to the adhesive reservoir groove in the back corner of the board storage portion, an adhesive reservoir groove for fixing the board is also provided in the inner wall portion of the board storage portion. .

  Moreover, it is a magnet resin extrusion molding body which forms a substantially U-shaped board storage part by extrusion molding, It is characterized by the above-mentioned.

To achieve the above object, the mounting method of the magnet frame with respect to post board have a board housing portion of the substantially U-shaped, and a magnet frame that covers the entire periphery of the board peripheral portion while heating the plastically deformable temperature Then, by applying appropriate tension outward in the normal direction to the portion corresponding to the curved four corners of the board outer peripheral part, the magnet frame is stretched and cooled and solidified after extending the outer peripheral difference of the curved four corners of the board outer peripheral part. It fixes to the said board outer peripheral part, It is characterized by the above-mentioned .

In addition, the method of attaching the magnet frame to the bulletin board is to heat the magnet frame at the plastically deformable temperature in a state where the magnet frame is previously attached to the entire circumference of the board outer peripheral portion, and the board outer peripheral portion. It is characterized by cooling and solidifying after applying the tension to the magnet frame at the four corners of the curve .

  A frame that covers both sides of the outer periphery of the bulletin board is made of magnets, and both sides of the magnet frame can be magnetically attached to the magnetic material. It is possible to use both the front and back surfaces of a magnetic body such as steel or blackboard without using any means, such as a display plate or a bulletin board, and the magnetized part is formed on the periphery of the board. Both the surface and the display surface are sufficiently secured, and the entire outer peripheral frame is a magnetized portion, so that the magnetic surface is securely and firmly magnetized without fear of dropping.

  Further, since the magnet frame is multipolarly magnetized on the front and back surfaces, both sides of the posting board are magnetized on the magnetic surface in a stable state.

  In addition, since the magnet frame has a substantially U-shaped storage portion that stores the outer periphery of the board, when the magnet frame is attached to the outer periphery of the posting board, the outer periphery of the board is fixed to the storage portion in an inserted state. The mounting work is smooth and the posting board of the present invention can be surely magnetized to the magnetic material.

  Further, by sticking the board storage surface of the board storage portion and the outer peripheral surface of the posting board with an adhesive, it is possible to fix the posting board and the magnet frame and maintain a stable adhesive state.

  In addition, since the adhesive storage groove for fixing the board is recessed in the board storage surface of the substantially U-shaped storage part, there is no risk of the adhesive leaking out and becoming dirty on the magnet frame and the board surface. Since the adhesive always exists in the accumulation groove, a stable adhesion state can be maintained.

  In addition, the board storage surface of the board storage part, the outer peripheral surface of the posting board, and the inner surface of the storage part of the magnet frame are bonded with a double-sided adhesive tape, so that the posting board and the magnet frame can be fixed and stably bonded. The state can be maintained.

  The posting board magnetic mounting magnet frame is formed by forming a substantially U-shaped board storage part on a magnet made of multi-pole magnetism, so that when the board is attached to the outer periphery of the posting board, the board outer peripheral part is attached to the storage part. The bulletin board of the present invention can be magnetically attached to the magnetic material with certainty, as long as it is housed and fixed.

  Also, the board storage surface of the board storage part is provided with an adhesive reservoir groove for fixing the board, so there is no risk of the adhesive leaking out on the board surface when it is attached to the board. In addition, since the adhesive is always present in the accumulation groove, a stable adhesive state can be maintained. Furthermore, when attaching to the curved part of a bulletin board, an adhesive agent reservoir becomes a play part at the time of curvature, and a magnet frame can be attached to a bulletin board in a flat state.

  In addition, a magnet frame can be easily formed by using a magnet resin extruded body formed by extrusion molding a substantially U-shaped board storage portion, and a long magnet frame molded by extrusion molding. Can be cut into a desired length to use a bulletin board of any shape and size.

  The magnet frame is attached to the bulletin board by heating the magnet frame having a substantially U-shaped storage portion to a plastically deformable temperature and applying appropriate tension to the portion corresponding to the outer peripheral curved portion of the bulletin board. Even after the magnet frame is extended to the outer periphery of the outer curved portion and then cooled and solidified, and fixed to the bulletin board, the magnet along the rounded corner of the curved portion even if the curved portion is formed at the four corners. A frame can be attached, and the magnet frame can be fixed quickly and easily in a flat state.

  In addition, after cutting out the portion corresponding to the outer peripheral corner of the posting board of the magnet frame having the substantially U-shaped storage part by the same angle as the outer peripheral corner, the magnet frame is bent to the posting board. By fixing, it is possible to attach a magnet frame along the angle of the corner even if it is a bulletin board that has four corners formed in a square shape, and fix the magnet frame quickly and easily in a flat state can do.

  FIG. 1 shows a bulletin board according to the present invention. In the figure, 1 is a bulletin board, and 2 is a magnet frame that covers both outer peripheral portions of the bulletin board 1 and is made of a magnet that can be magnetically attached to a magnetic body. Reference numeral 3 denotes a connecting portion of the magnet frame 2. The bulletin board 1 can be freely magnetized by the magnet frame 2 being magnetized on the magnetic material.

  First, the configuration of the magnet frame 2 will be described with reference to FIGS. The magnet frame 2 is a magnet molded body obtained by containing a magnetic powder in a resin material and magnetizing it. The magnet frame 2 is formed in a substantially U-shaped cross section, and forms the storage portion 4 of the posting board 1. When the magnet frame 2 is attached to the posting board 1, the outer peripheral portion 1 a of the posting board 1 is inserted and stored in the storage portion 4.

  Further, a plurality of recessed adhesive reservoir grooves 5 are formed in the longitudinal direction of the inner surface of the storage portion 4 of the magnet frame 2. The adhesive reservoir groove 5 stores an adhesive used when the magnet frame 2 is attached to the bulletin board 1, and functions as a play portion during bending when being attached to the curved portion of the bulletin board 1. In this embodiment, the adhesive reservoir groove 5 is formed in one pair at the top of the substantially U-shaped cross section where the top of the posting board 1 abuts, one pair at the middle, and one pair at the bottom. The position is not limited to this.

  The magnet frame 2 may employ any method such as extrusion molding or mold molding. However, in the present embodiment, the magnet frame 2 is an extrusion formed by extrusion molding a magnetic resin material in which magnetic powder and a resin material are mixed. It is a molded body. By using the magnet frame 2 as an extrusion-molded body, the long magnet frame 2 can be produced easily and quickly, and the extrusion-molded body formed in a long shape is cut into a desired length to obtain any shape. It can be attached to the bulletin board 1 of any size.

  Next, the structure of the bulletin board 1 to which the magnet frame 2 is attached will be described. The bulletin board 1 is attached to the bulletin board 1 by inserting and housing the bulletin board 1 in the housing part 4 of the magnet frame 2 over the entire circumference of the board outer peripheral part 1a. Furthermore, the outer peripheral surface of the outer peripheral portion 1a of the posting board 1 and the inner surface of the storage portion 4 of the magnet frame 2 are bonded and fixed with an adhesive. As described above, since the adhesive pool 5 is formed in the magnet frame 2, excess adhesive is stored in the adhesive pool groove 5, and the adhesive is displayed on the display surface and the display surface of the posting board 1. The outer periphery 1a of the bulletin board 1 is securely fixed to the housing part 4 of the magnet frame 2 in a stable state. The Since the magnet frame 2 is multipolarly magnetized on both the front side and the back side of the posting board 1, the posting board 1 can be magnetized so that it can be used on either the front side or the back side.

  In this embodiment, the means for fixing the posting board 1 to the housing part 4 of the magnet frame 2 is bonded by an adhesive. However, as shown in FIG. A means for fixing the bulletin board 1 and the magnet frame 6 may be used by bonding the outer surface of the outer peripheral surface 1a of the board 1 and bonding the inner surface of the storage portion 8 of the magnet frame 6 on the other surface. Without using an adhesive or double-sided adhesive tape 7, the inner diameter of the storage portion 8 of the magnet frame 2 is formed to be approximately the same as the width of the posting board 1, and the magnet frame 6 and the posting board 1 are fitted and fixed. Also good.

  Since the magnet frame 2 fixed on both sides of the outer peripheral portion 1a of the bulletin board 1 thus formed is multipolarly magnetized on the front and back surfaces, both sides of the magnet frame 2 are magnetized against a blackboard or partition having a magnetic surface. Can be worn. When one side is full of characters etc., it can be turned upside down without the effort of using it after erasing it and the other side can be used immediately. The magnet frame 2 is ideally attached and fixed to the entire outer periphery 1a of the bulletin board 1. However, depending on the weight of the bulletin board 1, the bulletin board 1 can be sufficiently magnetized even if it is partially attached. Can do.

  FIG. 5 shows a state in which the magnet frame 2 is attached to the curved portions at the four corners of the posting board 1. A method for attaching the magnet frame 2 to the bulletin board 1 will be described with reference to FIG. When the magnet frame 2 is placed along the radius of the board bending portion, there is a problem that if the magnet frame 2 is bent at room temperature, the inside of the magnet frame 2 is wavy and cannot be flatly attached.

  Therefore, the magnet frame 2 is attached to the bulletin board 1 by heating the magnet frame 2 to a plastically deformable temperature and applying an appropriate tension to the curved portion 2a corresponding to the curved portion of the bulletin board 1 so that the magnet frame 2 is attached. After extending the outer circumference differential of the outer curved portion, the magnet frame 2 is cooled and solidified and fixed to the posting board.

  The magnet frame 2 is attached in advance by applying an appropriate tension to the curved portion 2a corresponding to the curved portion of the bulletin board 1 and extending the magnet frame 2 to the outer circumferential differential portion of the outer curved portion, and then cooling and solidifying the magnet frame 2. It may be fixed to the bulletin board 1, or the magnet frame 2 is heated to a plastically deformable temperature while being attached to the outer peripheral portion 1 a of the bulletin board 1 of the bulletin board 1, and the curved portion of the bulletin board 1 is The magnet frame 2 may be cooled and solidified and fixed to the bulletin board after applying appropriate tension to the curved portion 2a corresponding to the above and extending the magnet frame 2 to the outer peripheral differential portion of the outer peripheral curved portion. Thus, even if there are curved portions at the four corners of the bulletin board 1, the magnet frame 2 can be fixed in an orderly and integrated manner along the rounded corners, and as a result, a stable magnetized state can be contemplated.

  The plastically deformable temperature is determined by the ratio of the resin material and the content of the magnetic powder and the like, and is heated to the plastically deformable temperature of the magnet frame 2 by the ratio of the resin material and the magnetic powder. For example, when a magnetic powder is contained in a thermoplastic elastomer by about several tens of percent, a temperature at which plastic deformation is possible is about 100 ° C., which is suitable for plastic deformation so that the magnet frame 2 can be attached. The heating temperature varies depending on the selection of the resin material such as plastic and thermoplastic elastomer constituting the magnet frame 2 and the ratio of magnetic powder to be mixed. The heating temperature is 100 ° C. or less depending on the properties of the magnet frame 2. It may be 100 degreeC or more.

  6 and 7 show a state in which the magnet frame 2 is fixed to the right-angle portions at the four corners of the posting board 1. A method for attaching the magnet frame 2 to the bulletin board 1 will be described with reference to FIG. The magnet frame 2 is attached to the bulletin board 1 by cutting the corner portion 2b corresponding to the outer peripheral corner of the posting frame of the magnet frame 2 by an angle substantially the same as the corner corner, and then extending the magnet frame 2. 2c is bent and fixed to the bulletin board 1.

  The magnet frame 2 may be attached in advance by cutting the corner portion 2b corresponding to the corner portion of the bulletin board 1 and then fixing it to the bulletin board 1 or the outer peripheral portion of the bulletin board 1 of the bulletin board 1 You may cut and fix the corner | angular corner part 2b applicable to the corner | angular corner part of the posting board 1 in the state attached to 1a. Thus, even if there are corner portions at the four corners of the posting board 1, the magnet frame 2 can be fixed in an orderly and integrated manner along the angle, so that a stable magnetized state can be contemplated. .

The front view which shows the whole bulletin board of this invention. The perspective view which shows the magnet frame of the posting board of this invention. Sectional drawing which shows the attachment state of the magnet frame of the bulletin board of this invention. Sectional drawing which shows the attachment state of the magnet frame of the bulletin board of this invention The partial omission front view which shows the state which attached the magnet frame to the curved part of the posting board of this invention. The front view which shows the state which attached the magnet frame to the corner | angular corner part of the posting board of this invention. The front view which shows the state which attached the magnet frame to the corner | angular corner part of the posting board of this invention.

DESCRIPTION OF SYMBOLS 1 Posting board 1a Peripheral part 2 of posting board Magnet frame 2a Curved part 2b Corner part 2c Extension part 3 Connecting part 4 Storage part 5 Adhesive accumulation groove 6 Magnet frame 7 Double-sided adhesive tape 8 Storage part

Claims (11)

A frame that covers both sides of the board outer periphery is formed with a magnet over the entire periphery of the board, and both sides of the magnet frame can be magnetically attached to the magnetic body , and the four corners of the magnet frame are curved. The magnet frame is fixed to the outer periphery of the board by forming, heating, stretching and cooling the curved portion to a plastically deformable temperature so that the magnetized surface of the magnet frame is a flat surface. To post board.   2. The bulletin board according to claim 1, wherein the magnet frame is multipolarly magnetized on the front and back surfaces.   The bulletin board according to any one of claims 1 to 3, wherein the magnet frame has a substantially U-shaped board storage portion for storing the outer periphery of the board. Posted board according board accepting surface of the board housing portion and a posting board outer peripheral surface to one of claims 1 to 3, characterized by being glued.   5. The bulletin board according to claim 1, wherein an adhesive reservoir groove for fixing and bonding the board is formed in the board storage surface of the board storage portion. Posted board according to any one of claims 1 to 5 and a board housing surface of the board housing portion and posting board outer peripheral surface, characterized by comprising adhered with double-sided adhesive tape. A magnet formed by multipolar magnetization is formed in a frame shape so as to cover the entire circumference of the outer peripheral part of the board, and a substantially U-shaped board storage part is formed on the inner peripheral part of the magnet frame , formed by recessed adhesive storage groove of the pair of board adhesive fixing at least Okusumi unit bulletin board magnetically attached for Ma Gunetto frame. The adhesive reservoir groove for fixing the bonding of the board is recessed in the inner wall portion of the board storage portion in addition to the adhesive reservoir groove in the back corner of the board storage portion. 7 Posted board magnetically attached for Ma Gunetto frame described. Posted board magnetically attracted for Ma Gunetto frame according to claim 7 or claim 8, characterized in that a magnet resin extrudate comprising a substantially U-shaped board accommodating portion formed by extrusion molding. Have a substantially U-shaped board housing portion, and thereby heat the magnet frame that covers the entire periphery of the board peripheral portion to plastically deformable temperature, the normal direction at a portion corresponding to the curved corner portion of the board peripheral portion after the addition of proper tension outwardly the magnet frame was stretched periphery difference of the curved corner portion of the board peripheral portion, and cooling and solidifying the posting boards, characterized in that fixed to the board peripheral portion Ma Gunetto How to attach the frame. The magnet frame is preliminarily attached to the entire circumference of the board outer peripheral portion, and the magnet frame is heated at the plastically deformable temperature, and the tension is applied to the magnet frame at the curved four corners of the board outer peripheral portion. after, Ma Gunetto frame attaching process of posting board according to claim 10, characterized in that the cooled and solidified.

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