JPH1111085A - Writing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate deformation of an edge member by introducing an end of a frame edge member and a corner of a board between both corner edge members, and engaging a pin with a hole, thereby replacing a simple assembly with only a surface plate. SOLUTION: Holding parts 16, 16' are respectively continuously provided at corner edge members 9, 10 so as to insert edge members 7, 8 above or rightward of a circular shape. Cylindrical parts 17, 17' are opposed to a center of the circular shape so as to insert them into holes of the part 17 of the first member 9. Pins 18, 18', and holes 19, 19' engaged with circular peripheral edge each other are provided so that two sets of the pin 18 of the member 9 and the hole 19' of second corner edge member 9 are projected at inside and two sets of the pin 18' of the second corner edge member 10 and hole 19 of the first corner edge member 9 are projected at outside oppositely to each other. Corners of superposed surface plate 4, core material and rear plate and both ends of longitudinal and lateral edge members 7, 8 are inserted between four sets of first and second corner edge members 9 and 10, and the parts 17, 17', pin 18, holes 19', 19 and pin 18' are engaged.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing apparatus such as a whiteboard, a blackboard, a magnetic writing board or the like which has a writing implement and is portable.

[0002]

2. Description of the Related Art In a conventional simple whiteboard which can be carried around, a peripheral portion such as a writable surface plate is sandwiched and fixed by an edge member such as a frame. Since the screws and adhesives were used, if the surface plate or the like became dirty, it could not be replaced and the entire writing board had to be disposed of. In particular, when a corner member is used to protect a corner, it is fixed with an adhesive, and the assemblability is further deteriorated in addition to the inability to replace the surface plate. Was also awake. In addition, when reinforcing by inserting a core material such as a cardboard on the back of the surface plate, the cardboard may expand and deform due to the influence of humidity, etc., and a gap may be formed between the edge member and the core material due to dimensional errors during assembly. Therefore, the edge member such as a resin frame may be deformed.

[0003]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problem. That is, even a simple writing device which can be carried around can be easily assembled without using an adhesive. When the surface plate becomes dirty, only the surface plate can be replaced, and even if a core material such as a cardboard is used, a writing device which does not deform the edge member such as a resin frame due to expansion deformation due to humidity or the like. With that purpose.

[0004]

According to the present invention, there is provided a writing apparatus comprising a writable board, at least two edge members for sandwiching a peripheral portion of the board, and a writing instrument. The edge member for holding the portion is provided with a pin on one side and a hole on the other side so as to be able to fit each other, and two edge members are arranged on the periphery of the board so as to face each other, and the pin and the hole are fitted. The configuration in which the board is pinched and fixed, and the edge member is
A first corner edge member, a second corner edge member, and a frame edge member, which are opposed to each other and fitted together to form an integral body;
A pin and a hole are provided on both corner edge members so as to be opposed to each other, and at least one hole has a flat portion on its inner peripheral surface, and the peripheral edge of the board is a frame edge member. The edge of the frame edge member and the corner of the board are inserted between the two corner edge members, and the pins and the holes are fitted to each other to thereby form the frame edge member and the board. The above-mentioned problem has been solved as a configuration in which the two are clamped and fixed by both corner edge members.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The writing apparatus according to the present invention has a
Since the two edge members are arranged to face each other, and the pin is fitted into the hole, the board is clamped and fixed, so that the assembly can be easily performed without using a solvent, and the positioning can be reliably performed. Further, both ends of the frame edge member and at least the corners of the face plate are inserted between the two corner edge members which are opposed to each other and are fitted to each other to be integrated with each other, and the pins of the both corner edge members and A hole having a flat portion is fitted on the inner peripheral surface to form a frame edge member and a bod.
When the clamp is clamped and fixed, the assemblability and positioning thereof are more reliable and stable.

Further, if the front plate of the board and the end face of the core material are sandwiched and fixed by the edge member while abutting against the step and the ridge of the edge member, the core material such as a danball may expand and deform due to the influence of humidity and the like. Even if a gap is opened between the edge member and the core material due to a dimensional error at the time of assembling or the like, the expanded portion enters the concave portions on both sides of the ridge of the edge member, and the resin frame is positioned because the display plate is positioned at the step. Are not deformed.

As the writing board of the present invention, a white board such as an enameled board, a painted board, a magnet sheet and the like is generally widely used, but a blackboard, a magnetic writing board and the like can also be used. As the core material, a cardboard, a plywood, a foamed resin, a resin plate, or the like can be used, but if the core material is made of an elastic material, the above-described assemblability becomes more effective. A back plate is not always necessary, but a ball paper, corrugated ball, writing board or the like may be used as a back plate to enhance decorativeness.

As the edge member, a resin molded product is generally used, but when the core material expands by absorbing moisture, there must be a volume of a concave portion capable of sufficiently absorbing the expansion, and therefore, the width of the concave portion is large. It is necessary to have a width of 1.5 times or more and a depth of 1 mm or more, preferably a width of 2 times or more and a depth of 1.5 mm or more. The uneven portion may be provided on any one or both surfaces so as to mesh with the one end of the side member of the edge member and the engagement groove of the receiving member. Note that a sheet-like magnet may be attached to the rim member, and the magnet may be attached to an iron cabinet, a large whiteboard, a refrigerator, or the like.

If a flat portion is provided in the hole to be fitted, the fitting becomes stronger and more reliable, and the fitting force can be controlled by adjusting the dimensions of the flat portion. For example, if it is desired to fix semi-permanently, the gap between the flat areas should be narrowed to increase the fitting force, and if it is desired to be detached, the gap between the flat areas should be increased to slightly weaken the fitting force. If you prepare several types, you can select one with the desired mating force. Further, if the pins are made longer, thicker, or more in number, more stable fitting force can be obtained.
If a thicker one is provided at the center of the corner member and a thinner one is provided at the periphery of the corner member, the fitting becomes double and the fitting becomes more stable.

[0010]

Next, an embodiment of the present invention will be described with reference to the drawings.
1 is a front view, FIG. 2 is an enlarged view of a corner portion, FIG. 3 is a sectional view taken along line BB of FIG. 2, and FIG. 4 is an enlarged sectional view taken along line AA of FIG. In the embodiment shown in FIGS. 1 to 4, the writing apparatus 1 includes a writing board 2 and a white board marker-3 as a writing implement.
Is a whiteboard surface plate 4 which can be written with a marker-3,
A core material 5 for a corrugated ball, a back plate 6 for ball paper, a lateral edge member 7,
Vertical edge member 8, corner edge members 9 and 10, and receiving member
Consists of eleven. The surface plate 4 is a white board painted white on a square iron plate having holes and R portions at four corners, and the core material 5 and the back plate 6 are provided with holes of substantially the same diameter at the four corners as the surface plate 4. , The length in the vertical and horizontal directions is slightly shorter than that in the surface plate 4.

The vertical and horizontal edge members 7 and 8 are formed of a long resin material having a substantially U-shaped cross section with a bottom piece and both side pieces as shown in FIG. 4, and the bottom piece has a height of 1.6 mm and an upper surface width of 0 mm. The ridges 12 of .8 mm protrude upward, and recesses 13 with an upper width of 1.9 mm are formed on both sides thereof. Also, a step 14 with a wide upper part is provided on one of the side pieces, and the inner surface of the tip of the side piece above the step 14 has a large R-shaped inclined part, in which longitudinal irregularities are alternately arranged in the orthogonal direction. Are provided with a continuous uneven portion 15.

The two corner edge members 9 and 10 are provided with holding portions 16 and 16 'into which the edge members 7 and 8 can be inserted in a circular manner as shown in FIG. The cylindrical portions 17, 17 'fitted to each other are provided to face each other so as to be inserted into the holes of the cylindrical portion 17 of the first corner member 9, and the circular peripheral portions are fitted to each other. Pins 18 and 18 'and holes 19 and 19'
The pin 18 of the corner member 9 and the hole 19 'of the second corner member 9
And the two sets of the pin 18 'of the second corner member 10 and the hole 19 of the first corner member 9 project outwardly. The second corner member 10 is a cylindrical portion.
A face plate holding pin 20 protrudes from the outside of 17 ′ so that the display plate 4 is sandwiched and fixed with the circular back surface of the first corner member 9.

The receiving member 11 is a resin molded product having a dish-shaped cross section.
An end of the side piece is folded outward to form an L-shaped locking piece 21, and an uneven portion 22 that engages with the uneven portion 15 of the edge members 7, 8 is provided on the inner surface of the locking piece 21. In the present embodiment, the concave and convex portions 15 and the concave and convex portions 22 are provided on one surface that meshes with each other. However, they may be meshed on another surface or on both surfaces.

In order to assemble the writing board 2 of this embodiment, the top plate 4, the core material 5, and the back plate 6 are overlapped, and the four sides are inserted into the openings of the vertical and horizontal edge members 7, 8. While the end surface of the surface plate 4 is in contact with the step 14 and the end surface of the core material 5 is in contact with the upper surface of the ridge 12, respectively, the four corners of the superposed surface plate 4, the core material 5, and the back plate 6 and the vertical and horizontal edge members 7, 8 are inserted between the four sets of first and second corner edge members 9 and 10, respectively, and the opposed cylindrical portions 17 and 17 ', pin 18 and hole 19', and hole 19 and pin 1
8 'are fitted together.

As a result, both ends of the edge members 7 and 8 are
The front plate 4, the core material 5, and the back plate 6 are also held and fixed at the same time while being strongly pinched and fixed to the holding portions 16, 16 'of the edge members 9, 10, and the front plate 4 is positioned and stepped by the step 14. The writing board 2 is assembled by being securely fixed by the holding by the face plate holding pins 20. Further, the engaging piece 21 of the receiving member 11 is inserted into a portion between the desired surface plate 4 and the edge members 7 and 8 against elasticity, and the concave and convex portions 15 and 22 are engaged with each other to attach the receiving member 11. Here, the receiving member 11 does not drop because it moves along the longitudinal direction of the edge members 7 and 8 but does not move in the orthogonal direction.

The thus-assembled embodiment and the conventional writing board were placed in an atmosphere of a temperature of 40 ° C. and a humidity of 80% for 7 days. As a result, in both cases, the core material expanded and deformed to the peripheral portion, but in the case of this embodiment, the ridge of the edge member cut into the core material, and the expanded portion of the end portion of the core material entered the recess, and the deformation of the edge member was slight. This was enough to use as a writing board. However, in the conventional one, the expanded portion at the end of the core material greatly deforms the edge member by pressing, so that it cannot be used as a writing board.

5 and 6 show another embodiment of the present invention.
There is no corner edge member, the periphery is integrally formed with the frame edge member, and the upper and lower pins 18 and the holes 19 are fitted by sandwiching the board peripheral edge between the front and rear frame edge members. Is fixed. FIG. 7 shows a corner edge member and a frame edge member.
The pin peripheral edge is clamped and fixed, but the pin 18 and the hole 19 are fitted by a frame edge member. FIG. 8 shows four frame edge members butted against each other to clamp and fix the board peripheral edge. The pin 18 and the hole 19 are fitted by a frame edge member, and each shows another embodiment of the present invention.

[0018]

According to the present invention, the above construction makes it possible to easily assemble a simple writing device which can be carried around without using an adhesive, and when the surface plate becomes dirty, it is possible to replace only the surface plate. A writing device which can be made and does not deform the edge member such as a resin frame due to expansion and deformation due to humidity even when a core material such as a cardboard is used. Also, preparing several types of flat space intervals of the holes for pin fitting has an advantage that a desired pin fitting force can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is an enlarged front view of a corner portion of the embodiment.

FIG. 3 is a sectional view taken along line BB of FIG. 2;

FIG. 4 is an enlarged sectional view taken along line AA of FIG. 1;

FIG. 5 is a front view showing another embodiment of the present invention.

FIG. 6 is a sectional view taken along line CC of FIG. 5;

FIG. 7 is a front view showing another embodiment of the present invention.

FIG. 8 is a front view showing another embodiment of the present invention.

[Explanation of symbols]

 2 Writing plate 3 Writing implement 4 Surface plate 5 Core material 6 Back plate 7, 8 Edge member 9, 10 Corner edge member 11 Receiving member 12 Protrusion 13 Depression 14 Step 15, 22 Uneven portion 17, 17 'Cylindrical portion 18 , 18 'Pin 19,19' Hole 21 Locking piece

Claims (4)

[Claims] 1. A board having a writable surface, at least two edge members for sandwiching the periphery of the board, and a writing instrument, wherein the edge member for sandwiching the periphery of the board has a pin on one side. On the other side, holes are provided so as to be fittable with each other, two edge members are arranged on the periphery of the board so as to face each other, and the pins are fitted into the holes to clamp and fix the board. Writing device. 2. The edge member comprises a first corner edge member, a second corner edge member, and a frame edge member, which are opposed to each other and fitted together to form an integral body. A pin and a hole are provided on the corner member so as to be opposed to each other, and at least one hole has a flat portion on its inner peripheral surface, and the peripheral portion of the board is sandwiched by the frame edge member. End of frame edge member and bob
A frame edge member and a board are sandwiched and fixed between both corner members by inserting a corner portion of the board between both corner edge members and fitting the pin and the hole. Characterized by
The writing device according to claim 1. 3. A writing apparatus according to claim 2, wherein said holes and said pins are provided at the central part and the peripheral part of both the corner members. 4. The board has a writable surface plate and an elastic core material, and the frame edge member has a bottom piece having a U-shaped cross section and a ridge protruding inward, and both sides thereof are recessed. A step is provided on one of the concave side pieces, and the frame edge member and the board are connected to each other while the end face of the surface plate is a step and the end face of the core material is in contact with the ridge. The writing device according to claim 2, wherein the writing device is held and fixed by a corner member.