JP3795703B2 - Rigidity comparison device between solid wood and structural laminated wood - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a solid material and a structural laminated material that allows a visitor to easily experience a comparison between the rigidity of a solid material and the rigidity of a structural laminated material formed by joining a plurality of woods with an adhesive. It is related with the rigidity comparison sensation apparatus.
[0002]
[Prior art]
Recently, instead of the so-called solid wood, a method of constructing a building such as a house using this square wood by combining multiple pieces of wood with an adhesive to produce a square wood of a predetermined size has attracted attention. The square is generally referred to as a structural laminate.
[0003]
[Problems to be solved by the invention]
However, as described above, the structural laminate is made by joining multiple pieces of wood with an adhesive, so that the purchaser who wants to buy a house feels uneasy in terms of strength compared to solid wood. It was a factor causing misunderstanding.
[0004]
Therefore, we have general visitors such as the above-mentioned purchasers feel how the rigidity of structural laminated wood is superior to that of solid wood, and the high safety of houses using this structural laminated wood. I needed to understand.
[0005]
[Means for Solving the Problems]
The rigidity comparison feeling device between the solid material and the structural laminated material of the invention according to claim 1 is a device for comparing and experiencing the rigidity of the solid material and the structural laminated material formed by joining plural pieces of wood with an adhesive. And inclined downward from the rear to the front, and a mounting surface on which the solid material or structural laminated material is mounted,
A support member that protrudes orthogonally from the mounting surface and supports both ends of the solid material or structural laminated material, and a solid material or structural member that protrudes orthogonally from the mounting surface and supported by the support member. A pressing member that can move up and down to press the middle part of the laminated material from above, and a load applied to the solid material or structural laminated material when the solid material or structural laminated material is pressed from above by the pressing member Load detecting means, a displacement amount detecting means for detecting a displacement amount of the solid material or the structural laminated material when the solid material or the structural laminated material is pressed from above by the pressing member, and a solid material by the pressing member. And a display device for displaying each detected value detected by the load detecting means and the displacement amount detecting means when the structural laminated material is pressed in order.
[0006]
According to the rigid comparison feeling device of the solid material and the structural laminated material of the invention according to claim 2, the upper space of the mounting surface is covered with a protective cover made of a transparent body, and is provided at an appropriate position of the protective cover. Solid wood or structural laminated material can be taken in and out freely by opening and closing the open door.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0008]
1 and 2 show the overall configuration of a rigid comparison sensation apparatus made of a solid material and a structural laminated material.
[0009]
The rigidity comparison sensation apparatus 1 includes a mounting surface 2 on which a solid material or a structural laminated material is mounted, a support member 3 and a pressing member 4 that protrude from the mounting surface 2, and an apparatus main body 1a. The display device 5 installed above the rear part is provided with load detection means and displacement amount detection means described later.
[0010]
Here, the structural laminated material refers to a material obtained by joining a plurality of woods with an adhesive.
[0011]
The mounting surface 2 constitutes the upper surface of the apparatus main body 1a, and has an inclined surface inclined downward from the rear part to the front part. The solid material or the structural laminated material placed on the placing surface 2 Is made easy to see from the front.
[0012]
A pair of the support members 3 are provided on the left and right sides of the lower end of the mounting surface 2 so as to support both ends of the solid material or the structural laminated material mounted on the mounting surface 2 described above.
[0013]
The upper end portions of these support members 3 are arranged so as to protrude by a predetermined length in a direction orthogonal to the placement surface 2, and below the both end portions of the solid material or the structural laminated material placed on the placement surface 2. To support.
[0014]
As shown in FIG. 2, the lower end of each support member 3 is fixed to the upper part of a base 1b provided in the apparatus main body 1a.
[0015]
The pressing member 4 presses the middle part of the solid material or the structural laminated material supported by the supporting member 3 and placed on the mounting surface 2 from above, and the left and right supporting members A pair of left and right is provided in the middle of the support member 3 so that the interval between the three is divided into three equal parts.
[0016]
These pressing members 4 are arranged such that their upper end portions protrude by a predetermined length in a direction perpendicular to the mounting surface 2, and their lower end portions are provided on the base 1b so as to be movable in the front-rear direction. 41 is fixed.
[0017]
The moving body 41 is provided so as to be movable back and forth along the inclination of the mounting surface 2 by a guide rail 42 laid on the upper portion of the base 1b.
[0018]
A driving means (not shown) driven by a motor 43 is connected to the moving body 41. By driving the driving means, the moving body 41 moves back and forth along the guide rail 42. As a result, the moving body 41 moves. The upper part of the pressing member 4 fixed to the body 41 moves back and forth on the mounting surface 2. In addition, the long hole 21 for allowing the movement of the press member 4 mentioned above is formed in the site | part of the mounting surface 2 in which the press member 4 is arrange | positioned.
[0019]
As the driving means, a telescopic jack device or the like is used, and when a load cell is interposed between the jack device and the moving body 41, a solid material or a structural laminated material is pressed by the pressing member 4. A load detecting means for detecting a load applied to the solid material or the structural laminated material is configured.
[0020]
Further, the solid material or the structural laminated material is pressed by the pressing member 4 by detecting the expansion / contraction amount of the jack device or the moving amount of the moving body 41 or the pressing member 4 by a sensor (displacement amount detecting means) such as a potentiometer. The amount of displacement of the solid wood or structural laminated wood is detected.
[0021]
The detection signals detected by the load detection means and displacement amount detection means described above are input to a control device (not shown), and the load and displacement amount are displayed on the display device 5 through this control device.
[0022]
As shown in FIG. 3, the display device 5 includes four display units 51 to 54 on the front surface thereof. Specifically, a pair of display units 51 and 53 for displaying a load are arranged on the left and right of the upper part, and a pair of display units 52 and 54 for displaying the amount of displacement are arranged on the lower side thereof.
[0023]
Then, the load and displacement amount of the first test piece (solid material in the present embodiment) when pressed by the pressing member 4 are displayed on the left and upper display units 51 and 52, and the right and upper display units 53 are displayed. , 54, the load and displacement amount of the second test piece (structural laminated material in the present embodiment) when pressed by the pressing member 4 are displayed.
[0024]
The upper space of the mounting surface 2 is covered with a protective cover 6. The protective cover 6 is a transparent body composed of a front surface, left and right side surfaces, and an upper surface. Through this protective cover 6, the state of the solid material or the structural laminated material placed on the placement surface 2 can be viewed safely by the visitor. Has been made.
[0025]
An opening / closing door (not shown) is provided at an appropriate position of the protective cover 6, for example, the right side surface, and a solid material or a structural laminated material can be taken in and out freely through the opening / closing door. .
[0026]
Reference numeral 71 shown in FIGS. 1 and 2 is a start switch provided on the front face of the apparatus main body 1a, and 72 is a stop switch provided on the front face of the apparatus main body 1a.
[0027]
Next, a description will be given of a procedure for allowing a visitor to experience a comparison between the rigidity of a solid material and a structural laminated material using the rigidity comparison experience apparatus configured as described above.
[0028]
First, a solid material is first inserted into the protective cover 6 through the open / close door, and both ends of the solid material are supported on the support members 3 and 3 and placed on the placement surface 2. At this time, the pair of left and right pressing members 4 and 4 are disposed at the origin position above the solid material.
[0029]
When the solid material is placed on the placement surface 2 in this manner, the start switch 71 is pushed and the jack device is operated through the motor 43. Thereby, the moving body 41 moves downward along the guide rail 42, and the pair of left and right pressing members 4, 4 provided on the moving body 41 moves downward, so that the pressing members 4, 4 are innocent. Two points in the middle of the material are pressed from above.
[0030]
At this time, in the load detection means, the load applied to the solid material is detected by the load cell, and the load at that time is displayed on the display unit 51 through the control device, and is generated in the solid material by the pressing of the pressing members 4 and 4. The amount of deformation, that is, the amount of displacement when the middle portion is bent downward with the left and right support members 3 and 3 as fulcrums, is detected by the displacement amount detection means, and the displacement amount is displayed on the display unit 52.
[0031]
Then, when the load reaches 500 kg, the movement of the pressing members 4 and 4 is once stopped, and the amount of displacement at that time is confirmed by the visitor by the display unit 52.
[0032]
Thereafter, the movement of the pressing members 4 and 4 is started again, and this time, the pressing members 4 and 4 are moved downward until the solid material is broken, and a load indicating a peak when the solid material is broken is applied. It is displayed on the display unit 51. Further, the display unit 52 displays the amount of displacement immediately before destruction.
[0033]
Whether or not the solid material is broken is determined by, for example, when the load value that gradually increases according to the pressing of the solid material by the pressing members 4 and 4 starts to decrease from a certain load value and a predetermined time elapses. It is determined that a break has occurred, and the load having a peak at that time is displayed on the display unit 51.
[0034]
When the solid material is destroyed as described above, the control device stops the downward movement of the pressing members 4, 4, then moves the pressing members 4, 4 upward and returns them to the original position again. Is taken out from the mounting surface 2 in the protective cover 6 through the door.
[0035]
Subsequently, this time, the structural laminated material is arranged on the mounting surface 2 in the same manner as described above, and the start switch is operated, and the middle part of the structural laminated material is pressed from above by the pressing members 4 and 4 as described above. Press. The load and displacement at this time are displayed on the display parts 53 and 54.
[0036]
Then, when the load reaches 500 kg, the pressing members 4 and 4 are stopped once, and the amount of displacement of the structural laminated material at that time is confirmed by the visitor by the display unit 54.
[0037]
Next, the pressing members 4 and 4 are again moved downward, and this time, the structural laminated material is pressed downward by the pressing members 4 and 4 until the load when the solid material is broken, and the structural laminated material at that time The display unit 54 confirms the amount of displacement by the visitor and compares it with the amount of displacement of the solid material displayed on the display unit 52.
[0038]
Therefore, the visitor can easily experience the rigidity of the solid material and the structural laminated material by looking at the display on the display units 51 to 54.
[0039]
Specifically, the solid material uses a long body A obtained by slicing a 120 × 120 mm square material (generally used as a base material) into one third, and the structural laminated material is shown in FIG. In this way, a long body A obtained by similarly slicing a 120 × 120 mm square member, which is obtained by joining four pieces of wood A1 with an adhesive and using resorcinol, is used.
[0040]
The distance between the support members 3 and 3 is set to 2160 mm, and the pressing members 4 and 4 are arranged so as to be divided into three equal parts.
[0041]
Here, when the load is 500 kg, it is experimentally understood that the displacement amount of the solid material and the structural laminated material is in the range of 14 to 21 mm for the solid material and 10 to 12 mm for the structural laminated material. By having the visitors experience the results, they can see that the structural laminate has excellent rigidity.
[0042]
Further, the amount of displacement when the solid material is destroyed and the amount of displacement of the structural laminated material when a load is applied to the structural material when the solid material is destroyed are the display unit 52 and the display unit. By comparing these displays, it can be easily understood whether the displacement amount of the structural laminated material is smaller than that of the solid material and is excellent in rigidity.
[0043]
The above-described procedure is executed by a program set in advance by the control device. This program can be set as appropriate so that the visitor can easily compare the rigidity of the solid material and the structural laminated material. Good.
[0044]
【The invention's effect】
As described above, according to the rigidity comparison feeling device of the solid material and the structural laminated material of the invention according to claim 1, the solid material and the structural laminated material are sequentially pressed by the pressing member against the middle portion thereof. Then, by displaying the load and displacement at that time on each display part, the visitor can see the display part and easily experience the rigidity of solid wood and structural laminated wood, By having the visitors actually check the high reliability of the structural laminated lumber, it is possible to get rid of the anxiety when purchasing houses using this structural laminated lumber, and to promote the willingness to purchase. be able to.
[0045]
According to the rigidity comparison feeling device of the solid material and the structural laminated material of the invention according to claim 2, the solid space or the structural laminated material is obtained by covering the upper space of the mounting surface with the protective cover made of a transparent body. Visitors can safely see the condition of the material, and can reliably prevent accidents caused by scattering of pieces of wood due to destruction.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a front view showing a configuration of a rigidity comparison sensation apparatus between a solid material and a structural laminated material.
FIG. 2 is a cross-sectional view seen from the side, showing the configuration of a rigid comparison sensation device of a solid material and a structural laminated material.
FIG. 3 is a front view showing each display unit provided in the display device.
FIG. 4 is a perspective view showing a configuration of a structural laminated material.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rigidity comparison sensation apparatus 2 Mounting surface 3 Support member 4 Pressing member 5 Display apparatus 51-54 Display part 6 Protective cover

Claims (2)

A device that compares the rigidity of solid wood with the structural laminate made by joining multiple pieces of wood with an adhesive,
A mounting surface inclined downward from the rear to the front, on which the solid material or the structural laminated material is mounted;
A support member that projects perpendicularly from the mounting surface and supports both ends of the solid material or the structural laminated material;
A pressing member that protrudes orthogonally from the placement surface and is movable up and down to press the middle part of the solid material or structural laminated material supported by the support member from above;
Load detecting means for detecting a load applied to the solid material or the structural laminated material when the solid material or the structural laminated material is pressed from above by the pressing member;
A displacement amount detecting means for detecting a displacement amount of the solid material or the structural laminated material when the solid material or the structural laminated material is pressed from above by the pressing member;
A solid material, comprising: a display device for displaying each detected value detected by the load detecting means and the displacement amount detecting means when the solid material and the structural laminated material are sequentially pressed by the pressing member. Rigidity comparison device for structural and laminated wood. The upper space of the mounting surface is covered with a protective cover made of a transparent body, and solid materials or structural laminated materials can be inserted and removed freely by opening and closing doors provided at appropriate positions of the protective cover. The rigidity comparison feeling apparatus of the solid material of Claim 1 and a structural laminated material.

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